CN108808886A - Transmitting equipment, wireless power supply system and the wireless lighting systems of wireless power supply system - Google Patents

本发明提供了一种无线供电系统的发射设备、无线供电系统和无线照明系统，其中，电源单元将外部的交流电转换成直流电，为控制单元和发射单元供电；控制单元向中控电路发送使能信号和PWM调压信号；当使能信号为高电平时，中控电路控制同步振荡器起振，通过IGBT驱动电路驱动IGBT功率管功率输出，谐振环起振，从而将电信号转换为无线磁信号输出。本发明可以将有线传输的电能转换为无线传输的磁信号为用电设备供电，提高了供电方式的便捷性和安全性。

The present invention provides a transmitting device of a wireless power supply system, a wireless power supply system and a wireless lighting system, wherein the power supply unit converts the external alternating current into direct current to supply power for the control unit and the transmitting unit; the control unit sends an enabling signal to the central control circuit signal and PWM voltage regulation signal; when the enable signal is at high level, the central control circuit controls the synchronous oscillator to start to oscillate, drives the IGBT power tube power output through the IGBT drive circuit, and the resonant ring starts to oscillate, thereby converting the electrical signal into a wireless magnetic signal output. The invention can convert the electric energy transmitted by wire into the magnetic signal transmitted by wireless to supply power for electric equipment, thereby improving the convenience and safety of the power supply mode.

无线供电系统的发射设备、无线供电系统和无线照明系统Transmitting equipment of wireless power supply system, wireless power supply system and wireless lighting system

技术领域technical field

本发明涉及供电系统技术领域，尤其是涉及一种无线供电系统的发射设备、无线供电系统和无线照明系统。The present invention relates to the technical field of power supply systems, in particular to a transmitting device of a wireless power supply system, a wireless power supply system and a wireless lighting system.

背景技术Background technique

现有的供电系统大多需要铺设复杂的线路，尤其为室内的供电系统，灯具照明等用电设备较多，为了保持美观，需要在房间内部上设置线路通道，施工量大，且供电系统线路复杂，安装费时费力。Most of the existing power supply systems need to lay complex lines, especially for indoor power supply systems. There are many electrical equipment such as lamps and lighting. In order to maintain the appearance, it is necessary to set up line channels inside the room. , The installation is time-consuming and labor-intensive.

针对上述供电系统线路复杂，安装费时费力的问题，尚未提出有效的解决方案。No effective solution has been proposed for the above-mentioned problems of complicated power supply system lines and time-consuming and labor-intensive installation.

发明内容Contents of the invention

有鉴于此，本发明的目的在于提供一种无线供电系统的发射设备、无线供电系统和无线照明系统；以将有线传输的电能转换为无线传输的磁信号为用电设备供电，提高供电方式的便捷性和安全性。In view of this, the object of the present invention is to provide a transmitting device of a wireless power supply system, a wireless power supply system and a wireless lighting system; to convert the electric energy transmitted by wire into a magnetic signal transmitted wirelessly to supply power to the electric equipment, and to improve the efficiency of the power supply mode. Convenience and security.

第一方面，本发明实施例提供了一种无线供电系统的发射设备，发射设备包括电源单元、控制单元和发射单元；发射单元包括中控电路、同步振荡器、IGBT驱动电路、IGBT功率管和谐振环；电源单元分别与控制单元和发射单元连接；电源单元还与外部的交流电源连接；中控电路与控制单元连接；同步振荡器和IGBT驱动电路分别与中控电路连接；IGBT驱动电路、IGBT功率管和谐振环依次连接；电源单元用于将外部的交流电转换成直流电，为控制单元和发射单元供电；控制单元用于向中控电路发送使能信号和PWM调压信号；当使能信号为高电平时，中控电路控制同步振荡器起振，通过IGBT驱动电路驱动IGBT功率管功率输出，谐振环起振，从而将电信号转换为无线磁信号输出。In the first aspect, an embodiment of the present invention provides a transmitting device for a wireless power supply system. The transmitting device includes a power supply unit, a control unit, and a transmitting unit; the transmitting unit includes a central control circuit, a synchronous oscillator, an IGBT drive circuit, and an IGBT power tube. vibration ring; the power supply unit is connected to the control unit and the transmitting unit; the power supply unit is also connected to the external AC power supply; the central control circuit is connected to the control unit; the synchronous oscillator and the IGBT drive circuit are respectively connected to the central control circuit; the IGBT drive circuit, The IGBT power tube and the resonant ring are connected in sequence; the power supply unit is used to convert the external AC power into DC power for the control unit and the transmitting unit; the control unit is used to send the enable signal and PWM voltage regulation signal to the central control circuit; when enabled When the signal is at a high level, the central control circuit controls the synchronous oscillator to start to oscillate, drives the IGBT power tube power output through the IGBT drive circuit, and the resonant ring starts to oscillate, thereby converting the electrical signal into a wireless magnetic signal for output.

结合第一方面，本发明实施例提供了第一方面的第一种可能的实施方式，其中，上述控制单元包括MCU芯片、稳压电路和PWM调压输出电路；稳压电路和PWM调压输出电路分别与MCU芯片连接；PWM调压输出电路用于输出PWM调压信号；MCU芯片用于输出使能信号。In combination with the first aspect, the embodiment of the present invention provides a first possible implementation of the first aspect, wherein the above-mentioned control unit includes an MCU chip, a voltage stabilizing circuit and a PWM voltage regulating output circuit; the voltage stabilizing circuit and the PWM voltage regulating output The circuits are respectively connected with the MCU chip; the PWM voltage regulation output circuit is used for outputting the PWM voltage regulation signal; and the MCU chip is used for outputting the enabling signal.

结合第一方面的第一种可能的实施方式，本发明实施例提供了第一方面的第二种可能的实施方式，其中，上述控制单元还包括扬声器和伺服电机；扬声器和伺服电机分别与MCU芯片连接。With reference to the first possible implementation manner of the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the above-mentioned control unit further includes a speaker and a servo motor; the speaker and the servo motor communicate with the MCU respectively chip connection.

结合第一方面，本发明实施例提供了第一方面的第三种可能的实施方式，其中，上述电源单元包括开关电源的输入电路；开关电源的输入电路包括依次连接的输入EMC滤波电路、整流电路和输出滤波电路；输入EMC滤波电路与外部的交流电连接；输入EMC滤波电路用于滤除交流电中的EMI干扰；整流电路用于将滤波后的交流电转换成脉动直流电；输出滤波电路用于对脉动直流电进行滤波，输出平滑直流电。In combination with the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the above-mentioned power supply unit includes an input circuit of a switching power supply; the input circuit of a switching power supply includes an input EMC filter circuit, a rectifier circuit connected in sequence circuit and output filter circuit; the input EMC filter circuit is connected to the external AC; the input EMC filter circuit is used to filter out the EMI interference in the AC; the rectifier circuit is used to convert the filtered AC into pulsating DC; the output filter circuit is used for The pulsating direct current is filtered to output smooth direct current.

结合第一方面的第三种可能的实施方式，本发明实施例提供了第一方面的第四种可能的实施方式，其中，上述电源单元还包括开关电源电路；开关电源电路与外部的交流电连接；开关电源电路用于将交流电转换成多级直流电，经多路输出至控制单元和发射单元。In combination with the third possible implementation of the first aspect, the embodiment of the present invention provides a fourth possible implementation of the first aspect, wherein the power supply unit further includes a switching power supply circuit; the switching power supply circuit is connected to an external AC power ; The switching power supply circuit is used to convert the alternating current into multi-level direct current, and output to the control unit and the transmitting unit through multiple channels.

结合第一方面，本发明实施例提供了第一方面的第五种可能的实施方式，其中，上述谐振环上套接有磁环电感；磁环电感还与中控电路连接；磁环电感用于采集谐振环上的谐振信号，将谐振信号发送至中控电路。In combination with the first aspect, the embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein, the magnetic ring inductor is sleeved on the above-mentioned resonant ring; the magnetic ring inductor is also connected to the central control circuit; the magnetic ring inductor is used for To collect the resonance signal on the resonance ring, and send the resonance signal to the central control circuit.

结合第一方面，本发明实施例提供了第一方面的第六种可能的实施方式，其中，上述发射单元还包括发射功率调节电路；发射功率调节电路与中控电路连接；发射功率调节电路用于调节磁信号的发射功率。In combination with the first aspect, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the above-mentioned transmitting unit further includes a transmission power adjustment circuit; the transmission power adjustment circuit is connected to the central control circuit; the transmission power adjustment circuit is used for It is used to adjust the transmission power of the magnetic signal.

结合第一方面，本发明实施例提供了第一方面的第七种可能的实施方式，其中，上述IGBT功率管的数量为两个；两个IGBT功率管并联；并联后的两个IGBT功率管与谐振环串联。In combination with the first aspect, the embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the number of the above-mentioned IGBT power transistors is two; the two IGBT power transistors are connected in parallel; the two IGBT power transistors connected in parallel connected in series with the resonant ring.

第二方面，本发明实施例提供了一种无线供电系统，该无线供电系统包括上述发射设备，还包括接收设备。In a second aspect, an embodiment of the present invention provides a wireless power supply system, where the wireless power supply system includes the above-mentioned transmitting device, and further includes a receiving device.

第三方面，本发明实施例提供了一种无线照明系统，无线照明系统包括上述无线供电系统，还包括光源；光源与无线供电系统的接收设备连接。In a third aspect, an embodiment of the present invention provides a wireless lighting system. The wireless lighting system includes the above-mentioned wireless power supply system, and also includes a light source; the light source is connected to a receiving device of the wireless power supply system.

本发明实施例带来了以下有益效果：Embodiments of the present invention bring the following beneficial effects:

本发明实施例提供的一种无线供电系统的发射设备、无线供电系统和无线照明系统，通过电源单元将外部的交流电转换成直流电，为控制单元和发射单元供电；通过控制单元向中控电路发送使能信号和PWM调压信号；当使能信号为高电平时，中控电路控制同步振荡器起振，通过IGBT驱动电路驱动IGBT功率管功率输出，谐振环起振，从而将电信号转换为无线磁信号输出。该方式可以将有线传输的电能转换为无线传输的磁信号为用电设备供电，避免了大量铺设供电线路造成的工程量大，安装费时费力以及后期用电安全的问题，提高了供电方式的便捷性和安全性。The transmitting equipment of the wireless power supply system, the wireless power supply system and the wireless lighting system provided by the embodiments of the present invention convert the external alternating current into direct current through the power supply unit to supply power for the control unit and the transmitting unit; Enable signal and PWM voltage regulation signal; when the enable signal is at a high level, the central control circuit controls the synchronous oscillator to start to oscillate, drives the IGBT power tube power output through the IGBT drive circuit, and the resonant ring starts to oscillate, thereby converting the electrical signal into Wireless magnetic signal output. This method can convert the electric energy transmitted by wire into magnetic signal transmitted by wireless to supply power for electric equipment, avoiding the large amount of engineering caused by laying a large number of power supply lines, time-consuming and labor-intensive installation, and the safety of power consumption in the later stage, and improving the convenience of power supply mode sex and safety.

本发明的其他特征和优点将在随后的说明书中阐述，或者，部分特征和优点可以从说明书推知或毫无疑义地确定，或者通过实施本发明的上述技术即可得知。Other features and advantages of the present invention will be set forth in the following description, or some of the features and advantages can be inferred or unambiguously determined from the description, or can be known by implementing the above-mentioned techniques of the present invention.

为使本发明的上述目的、特征和优点能更明显易懂，下文特举较佳实施方式，并配合所附附图，作详细说明如下。In order to make the above-mentioned purpose, features and advantages of the present invention more comprehensible, preferred implementation modes are specifically cited below, together with the accompanying drawings, to be described in detail as follows.

附图说明Description of drawings

为了更清楚地说明本发明具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

图1为本发明实施例提供的一种无线供电系统的发射设备的结构示意图；FIG. 1 is a schematic structural diagram of a transmitting device of a wireless power supply system provided by an embodiment of the present invention;

图2为本发明实施例提供的另一种无线供电系统的发射设备的结构示意图；FIG. 2 is a schematic structural diagram of a transmitting device of another wireless power supply system provided by an embodiment of the present invention;

图3为本发明实施例提供的发射设备中，控制单元的电路图；FIG. 3 is a circuit diagram of a control unit in a transmitting device provided by an embodiment of the present invention;

图4为本发明实施例提供的发射设备中，一种发射单元的电路图；4 is a circuit diagram of a transmitting unit in the transmitting device provided by the embodiment of the present invention;

图5为本发明实施例提供的发射设备中，另一种发射单元的电路图；5 is a circuit diagram of another transmitting unit in the transmitting device provided by the embodiment of the present invention;

图6为本发明实施例提供的发射设备中IGBT的驱动波形和发射线圈的电流波形示意图；6 is a schematic diagram of the driving waveform of the IGBT and the current waveform of the transmitting coil in the transmitting device provided by the embodiment of the present invention;

图7为本发明实施例提供的发射设备中，电源单元的电路图；7 is a circuit diagram of a power supply unit in a transmitting device provided by an embodiment of the present invention;

图8为本发明实施例提供的一种无线供电系统的结构示意图；FIG. 8 is a schematic structural diagram of a wireless power supply system provided by an embodiment of the present invention;

图9为本发明实施例提供的一种无线照明系统的结构示意图；Fig. 9 is a schematic structural diagram of a wireless lighting system provided by an embodiment of the present invention;

图10为本发明实施例提供的一种无线供电系统的接收设备的结构示意图；FIG. 10 is a schematic structural diagram of a receiving device of a wireless power supply system provided by an embodiment of the present invention;

图11为本发明实施例提供的一种无线供电系统的电路图。Fig. 11 is a circuit diagram of a wireless power supply system provided by an embodiment of the present invention.

具体实施方式Detailed ways

为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

考虑到现有的供电系统线路复杂，安装费时费力的问题，本发明实施例提供了一种无线供电系统的发射设备、无线供电系统和无线照明系统；该技术可以应用于室内或户外的照明系统、充电系统或其他综合用电系统中；该技术可以采用相关的软件或硬件实现，下面通过实施例进行描述。Considering the complicated wiring of the existing power supply system and the time-consuming and labor-intensive installation, the embodiment of the present invention provides a wireless power supply system transmitting device, a wireless power supply system and a wireless lighting system; this technology can be applied to indoor or outdoor lighting systems , charging system or other comprehensive power consumption systems; this technology can be implemented by using relevant software or hardware, and will be described through embodiments below.

参见图1所示的一种无线供电系统的发射设备的结构示意图；该发射设备包括电源单元10、控制单元11和发射单元12；该发射单元12包括中控电路121、同步振荡器122、IGBT(Insulated Gate Bipolar Transistor，绝缘栅双极型晶体管)驱动电路123、IGBT功率管124和谐振环125；Referring to the structural diagram of a transmitting device of a wireless power supply system shown in FIG. 1; the transmitting device includes a power supply unit 10, a control unit 11 and a transmitting unit 12; the transmitting unit 12 includes a central control circuit 121, a synchronous oscillator 122, an IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) drive circuit 123, IGBT power tube 124 and resonant ring 125;

上述电源单元10分别与控制单元10和发射单元12连接；电源单元10还与外部的交流电源连接；中控电路121与控制单元11连接；同步振荡器122和IGBT驱动电路123分别与中控电路121连接；IGBT驱动电路123、IGBT功率管124和谐振环125依次连接；Above-mentioned power supply unit 10 is connected with control unit 10 and emission unit 12 respectively; Power supply unit 10 is also connected with external AC power supply; Central control circuit 121 is connected with control unit 11; Synchronous oscillator 122 and IGBT driving circuit 123 are respectively connected with central control circuit 121 connection; IGBT drive circuit 123, IGBT power tube 124 and resonant ring 125 are connected sequentially;

上述电源单元10用于将外部的交流电转换成直流电，为控制单元10和发射单元12供电；控制单元10用于向中控电路121发送使能信号和PWM(Pulse Width Modulation，脉冲宽度调制)调压信号；当使能信号为高电平时，中控电路121控制同步振荡器122起振，通过IGBT驱动电路123驱动IGBT功率管124功率输出，谐振环125起振，从而将电信号转换为无线磁信号输出。The above-mentioned power supply unit 10 is used to convert the external alternating current into direct current to supply power for the control unit 10 and the transmitting unit 12; voltage signal; when the enable signal is at a high level, the central control circuit 121 controls the synchronous oscillator 122 to start to vibrate, drives the IGBT power tube 124 to output power through the IGBT drive circuit 123, and the resonant ring 125 starts to vibrate, thereby converting the electrical signal into wireless Magnetic signal output.

该发射设备中，控制单元和发射单元中的中控电路均可以通过单片机、DSP(Digital Signal Processing，数字信号处理)等芯片及其外围电路实现；上述IGBT驱动电路通过与IGBT功率管配套的驱动模块实现；通常，IGBT驱动电路可以包含多个驱动单元，每个驱动单元用于驱动对应的IGBT功率管。上述谐振环通过由电感和电容组成的串联谐振环，以固有频率起振。In this transmitting device, both the control unit and the central control circuit in the transmitting unit can be realized by chips such as single-chip microcomputer, DSP (Digital Signal Processing, digital signal processing) and their peripheral circuits; Module implementation; generally, an IGBT drive circuit may include multiple drive units, and each drive unit is used to drive a corresponding IGBT power transistor. The above-mentioned resonant ring starts to vibrate at a natural frequency through a series resonant ring composed of an inductor and a capacitor.

上述IGBT驱动电路可以使IGBT功率管正常工作，并对其进行保护；基于此，在设置IGBT驱动电路时，需考虑多种参数是否匹配，例如，IGBT驱动电路需要提供所需的门极平均电流IoutAV及门极驱动功率PG，驱动电路的最大平均输出电流须大于计算值；驱动电路的输出峰值电流IoutPEAK须大于等于计算得到的最大峰值电流；驱动电路的最大输出门极电容量须能够提供所需的门极电荷以对IGBT的门极充放电；在IGBT驱动器选择中还应考虑绝缘电压Visol IO和dv/dt能力等。The above IGBT drive circuit can make the IGBT power tube work normally and protect it; based on this, when setting the IGBT drive circuit, it is necessary to consider whether various parameters match. For example, the IGBT drive circuit needs to provide the required average gate current IoutAV and gate drive power PG, the maximum average output current of the drive circuit must be greater than the calculated value; the output peak current IoutPEAK of the drive circuit must be greater than or equal to the calculated maximum peak current; the maximum output gate capacitance of the drive circuit must be able to provide the The required gate charge is used to charge and discharge the gate of the IGBT; the insulation voltage Visol IO and dv/dt capability, etc. should also be considered in the selection of the IGBT driver.

本发明实施例提供的一种无线供电系统的发射设备，通过电源单元将外部的交流电转换成直流电，为控制单元和发射单元供电；通过控制单元向中控电路发送使能信号和PWM调压信号；当使能信号为高电平时，中控电路控制同步振荡器起振，通过IGBT驱动电路驱动IGBT功率管功率输出，谐振环起振，从而将电信号转换为无线磁信号输出。该方式可以将有线传输的电能转换为无线传输的磁信号为用电设备供电，避免了大量铺设供电线路造成的工程量大，安装费时费力以及后期用电安全的问题，提高了供电方式的便捷性和安全性。The transmitting device of a wireless power supply system provided by the embodiment of the present invention converts the external alternating current into direct current through the power supply unit to supply power for the control unit and the transmitting unit; sends the enable signal and the PWM voltage regulation signal to the central control circuit through the control unit ; When the enable signal is at a high level, the central control circuit controls the synchronous oscillator to start to oscillate, drives the IGBT power tube power output through the IGBT drive circuit, and the resonant ring starts to oscillate, thereby converting the electrical signal into a wireless magnetic signal for output. This method can convert the electric energy transmitted by wire into magnetic signal transmitted by wireless to supply power for electric equipment, avoiding the large amount of engineering caused by laying a large number of power supply lines, time-consuming and labor-intensive installation, and the safety of power consumption in the later stage, and improving the convenience of power supply mode sex and safety.

参见图2所示的另一种无线供电系统的发射设备的结构示意图；该发射设备在图1中所示发射设备基础上实现；该发射设备包括电源单元10、控制单元11和发射单元12；该发射单元12包括中控电路121、同步振荡器122、IGBT驱动电路123、IGBT功率管124和谐振环125；Referring to the schematic structural diagram of another wireless power supply system transmitting device shown in FIG. 2; the transmitting device is implemented on the basis of the transmitting device shown in FIG. 1; the transmitting device includes a power supply unit 10, a control unit 11 and a transmitting unit 12; The transmitting unit 12 includes a central control circuit 121, a synchronous oscillator 122, an IGBT drive circuit 123, an IGBT power tube 124 and a resonant ring 125;

进一步地，上述控制单元包括MCU(Microcontroller Unit，微控制单元)芯片111、稳压电路112和PWM调压输出电路113；稳压电路112和PWM调压输出电路113分别与MCU芯片111连接；PWM调压输出电路113用于输出PWM调压信号；MCU芯片111用于输出使能信号。Further, the control unit includes an MCU (Microcontroller Unit, micro control unit) chip 111, a voltage regulator circuit 112 and a PWM voltage regulation output circuit 113; the voltage regulator circuit 112 and the PWM voltage regulation output circuit 113 are connected to the MCU chip 111 respectively; The voltage regulation output circuit 113 is used to output the PWM voltage regulation signal; the MCU chip 111 is used to output the enable signal.

进一步地，该控制单元还包括扬声器114和伺服电机115；该扬声器114和伺服电机115分别与MCU芯片连接。该伺服电机可以用于驱动散热风扇，用于为发射设备进行散热。Further, the control unit also includes a speaker 114 and a servo motor 115; the speaker 114 and the servo motor 115 are respectively connected to the MCU chip. The servo motor can be used to drive a cooling fan to dissipate heat for the transmitting device.

参见图3所示的发射设备中，控制单元的电路图；如图3可知，稳压电路连接在MCU芯片的电压输入引脚，即引脚1；PWM调压输出电路连接在引脚23；引脚6为使能端输出，与发射单元的中控模块连接，输出使能信号；另外，MCU芯片的部分引脚与其它控制单元和发射单元连接，用于接收检测信号，例如，引脚11和引脚12用于接收两个IGBT功率管的饱和信号；引脚13和引脚17用于接收中控模块的输入电压检测信号和输入电路检测信号；引脚14和引脚15用于连接LED灯；引脚26为AV检测引脚。Referring to the circuit diagram of the control unit in the transmitting device shown in Figure 3; as shown in Figure 3, the voltage regulator circuit is connected to the voltage input pin of the MCU chip, that is, pin 1; the PWM voltage regulation output circuit is connected to pin 23; Pin 6 is the output of the enable terminal, which is connected to the central control module of the transmitting unit to output the enabling signal; in addition, some pins of the MCU chip are connected to other control units and the transmitting unit for receiving detection signals, for example, pin 11 And pin 12 is used to receive the saturation signal of two IGBT power tubes; pin 13 and pin 17 are used to receive the input voltage detection signal and input circuit detection signal of the central control module; pin 14 and pin 15 are used to connect LED light; pin 26 is the AV detection pin.

该控制单元还可以包括无线通信模块116，例如，WIFI(Wireless Fidelity，无线保真)模块、GSM(Global System for Mobile Communication，全球移动通信系统)模块、Zigbee模块等，用于向供电系统中的接收设备发送控制信号、反馈信号等。The control unit may also include a wireless communication module 116, such as a WIFI (Wireless Fidelity, Wireless Fidelity) module, a GSM (Global System for Mobile Communication, Global System for Mobile Communication) module, a Zigbee module, etc. The receiving device sends control signals, feedback signals, etc.

参见图4所示的发射设备中，一种发射单元的电路图和图5所示的发射设备中，另一种发射单元的电路图。谐振环为L1、C9和C10组成的串联谐振环；该谐振环上套接有磁环电感L2；该磁环电感还与中控电路连接；该磁环电感用于采集谐振环上的谐振信号，将谐振信号发送至中控电路。图4和图5中，磁环电感可以反馈同步信号到中控电路的同步振荡器输入端引脚12，当同步振荡器振荡频率达到谐振环谐振频率同步时，电流过零截止。Refer to the circuit diagram of a transmitting unit in the transmitting device shown in FIG. 4 and the circuit diagram of another transmitting unit in the transmitting device shown in FIG. 5 . The resonant ring is a series resonant ring composed of L1, C9 and C10; the magnetic ring inductance L2 is sleeved on the resonant ring; the magnetic ring inductance is also connected to the central control circuit; the magnetic ring inductance is used to collect the resonance signal on the resonant ring , and send the resonance signal to the central control circuit. In Figure 4 and Figure 5, the magnetic ring inductance can feed back the synchronous signal to the synchronous oscillator input pin 12 of the central control circuit. When the synchronous oscillator oscillation frequency reaches the synchronous resonant frequency of the resonant ring, the current zero crosses and cuts off.

上述发射单元还包括发射功率调节电路；该发射功率调节电路与中控电路连接；该发射功率调节电路用于调节磁信号的发射功率。上述IGBT功率管的数量为两个；两个IGBT功率管并联；并联后的两个IGBT功率管与谐振环串联。The transmitting unit also includes a transmitting power adjusting circuit; the transmitting power adjusting circuit is connected with the central control circuit; the transmitting power adjusting circuit is used for adjusting the transmitting power of the magnetic signal. The number of the above-mentioned IGBT power transistors is two; the two IGBT power transistors are connected in parallel; and the parallel connected two IGBT power transistors are connected in series with the resonant ring.

如图5中，中控电路的引脚7为使能脚，与控制单元的使能端引脚6连接，接收控制单元发送的使能信号；当使能信号为当高电平(5V)时，同步振荡器会产生起振(R1为振荡电阻，R1越大频率越低)，上下两个IGBT功率管Q1Q2正常输出信号，经过IGBT驱动模块(采用配套CP1031驱动模块)放大后，驱动Q1和Q2 IGBT功率管；L1和C9，C10组成串联谐振环以固有的频率起振。VR1可调节功率控制引脚9的电压(0-5V)，电压越高发射功率越大，从而限制最大发射功率；当发射达到最大功率时，进行占空比调制，引脚8的电压会被中控电路内部的占空比调制器降低，输出的驱动信号占空比变小，从而限制最大发射功率；该方式可以限制接收设备上的最大输出电流，具有限制供电电流。As shown in Figure 5, the pin 7 of the central control circuit is the enable pin, which is connected to the enable terminal pin 6 of the control unit to receive the enable signal sent by the control unit; when the enable signal is at a high level (5V) , the synchronous oscillator will start to oscillate (R1 is the oscillation resistance, the larger the R1, the lower the frequency), the upper and lower IGBT power transistors Q1Q2 normally output signals, which are amplified by the IGBT drive module (using the matching CP1031 drive module) to drive Q1 And Q2 IGBT power tube; L1 and C9, C10 form a series resonant ring with a natural frequency Vibrate. VR1 can adjust the voltage of power control pin 9 (0-5V). The higher the voltage, the greater the transmission power, thus limiting the maximum transmission power; when the transmission reaches the maximum power, the duty cycle modulation is performed, and the voltage of pin 8 will be controlled by The duty ratio modulator inside the central control circuit is reduced, and the duty ratio of the output driving signal becomes smaller, thereby limiting the maximum transmission power; this method can limit the maximum output current on the receiving device, and has the ability to limit the supply current.

上述发射设备的发射单元也可以称为无线供电发射的半桥控制ZCS(ZeroCurrent Switch，零电流开关)模块，内部集成了同步振荡器、PWM自适应调节、发射线圈峰值电流检测、发射线圈峰值电流限流，集成度高、外围零件少、效率高、调试简单等优点。The transmitting unit of the above-mentioned transmitting device can also be called a half-bridge control ZCS (ZeroCurrent Switch) module for wireless power supply transmission, which integrates a synchronous oscillator, PWM adaptive adjustment, peak current detection of the transmitting coil, and peak current detection of the transmitting coil. Current limiting, high integration, less peripheral parts, high efficiency, simple debugging and other advantages.

通常，该发射设备在投入适应之前，需要进行调试，参考图5所示电路，调试步骤如下：Usually, the launch equipment needs to be debugged before it is put into adaptation. Referring to the circuit shown in Figure 5, the debugging steps are as follows:

步骤(1)，把VR2电位器调到最小(中间脚电压最低)，U4的第23脚对地短接，第6脚连接+5V，示波器隔离探头接到IGBT的G极。Step (1), adjust the VR2 potentiometer to the minimum (the middle pin has the lowest voltage), short the 23rd pin of U4 to the ground, connect the 6th pin to +5V, and connect the oscilloscope isolation probe to the G pole of the IGBT.

步骤(2)，设备上电，在空载情况下，慢慢把VR2电位器调大(中间脚电压)，同时观察输入功率；如果输入功率在20W以下，继续慢慢调大VR2，当输入功率达到20W左右时停止调节电位器，此时可用示波器观察IGBT的驱动波形的频率和记下现在谐振频率，IGBT的驱动波形和发射线圈的电流波形如图6所示。Step (2), power on the device, under no-load conditions, slowly increase the VR2 potentiometer (middle pin voltage), and observe the input power at the same time; if the input power is below 20W, continue to slowly increase VR2, when the input When the power reaches about 20W, stop adjusting the potentiometer. At this time, you can observe the frequency of the driving waveform of the IGBT with an oscilloscope and record the current resonance frequency. The driving waveform of the IGBT and the current waveform of the transmitting coil are shown in Figure 6.

步骤(3)，把接收线圈和谐振电容的振荡频率调节至与发射机的工作频率相同，接上负载，计算转换效率，调整谐振电容；当转换效率最高时，接收谐振频率和发射频率的谐振是佳的。Step (3), adjust the oscillation frequency of the receiving coil and the resonant capacitor to be the same as the operating frequency of the transmitter, connect the load, calculate the conversion efficiency, and adjust the resonant capacitor; when the conversion efficiency is the highest, the resonance between the receiving resonant frequency and the transmitting frequency is good.

步骤(4)，再调整VR2，让输出电流和功率达到所需的值，至此功率部分调试完成；Step (4), and then adjust VR2, so that the output current and power reach the required value, so far the debugging of the power part is completed;

步骤(5)，把U4的23脚和6脚短接线断开复原，上电；上电后，发射机由MCU控制在待机状态(待机功耗5W左右)，再把接收线圈放上，发射机和接收机之间通讯成功，发射机功率逐渐由小变大，直到达到最大功率，当电池充饱后，接收机检测到充饱信号会通知发射机停止工作，进入待机状态。Step (5), disconnect the 23-pin and 6-pin short wires of U4 to restore, and power on; after power on, the transmitter is controlled by the MCU in the standby state (standby power consumption is about 5W), then put the receiving coil on, and transmit If the communication between the transmitter and the receiver is successful, the power of the transmitter will gradually increase from small to large until it reaches the maximum power. When the battery is fully charged, the receiver will notify the transmitter to stop working and enter the standby state when it detects the full charge signal.

在调试过程中，R45，R46可调整电流过零点的位置，阻值大IGBT驱动波形会提前，阻值小IGBT驱动波延迟，如图6中波形所示，驱动波形是在电流过零点截止。调试前须把VR2电位器调到最小(中间脚电压最低)，然后再从小往大细调；放上接收机调试时，必需要把接收机的谐振电容调整到效率最高，才能调大发射功率。During the debugging process, R45 and R46 can adjust the position of the current zero-crossing point. The IGBT driving waveform with a large resistance value will be advanced, and the IGBT driving wave with a small resistance value will be delayed. As shown in the waveform in Figure 6, the driving waveform is cut off at the current zero-crossing point. Before debugging, the VR2 potentiometer must be adjusted to the minimum (the voltage of the middle pin is the lowest), and then fine-tuned from small to large; when debugging on the receiver, it is necessary to adjust the resonant capacitor of the receiver to the highest efficiency before increasing the transmission power .

参见图7所示的发射设备中，电源单元的电路图；该电源单元包括开关电源的输入电路；开关电源的输入电路包括依次连接的输入EMC(Electro Magnetic Compatibility，电磁兼容性)滤波电路、整流电路和输出滤波电路；输入EMC滤波电路与外部的交流电连接；该输入EMC滤波电路用于滤除交流电中的EMI(Electromagnetic Interference，电磁干扰)干扰；整流电路用于将滤波后的交流电转换成脉动直流电；输出滤波电路用于对脉动直流电进行滤波，输出平滑直流电。该电源单元还包括开关电源电路；该开关电源电路与外部的交流电连接；开关电源电路用于将交流电转换成多级直流电，经多路输出至控制单元和发射单元。Referring to the transmission device shown in Figure 7, the circuit diagram of the power supply unit; the power supply unit includes the input circuit of the switching power supply; the input circuit of the switching power supply includes an input EMC (Electro Magnetic Compatibility, electromagnetic compatibility) filter circuit, rectifier circuit connected in sequence And the output filter circuit; the input EMC filter circuit is connected to the external AC; the input EMC filter circuit is used to filter out the EMI (Electromagnetic Interference, electromagnetic interference) interference in the AC; the rectifier circuit is used to convert the filtered AC into pulsating DC ; The output filter circuit is used to filter the pulsating direct current and output smooth direct current. The power supply unit also includes a switching power supply circuit; the switching power supply circuit is connected to the external alternating current; the switching power supply circuit is used to convert the alternating current into multi-level direct current, and output it to the control unit and the transmitting unit through multiple channels.

对应于上述发射设备，参见图8所示的一种无线供电系统的结构示意图；该无线供电系统包括发射设备80，还包括接收设备；通常，发射设备可以连接多台接收设备，图8中以三台接收设备为例进行说明，分别为接收设备81a、接收设备81b和接收设备81c。Corresponding to the above-mentioned transmitting device, refer to a schematic structural diagram of a wireless power supply system shown in FIG. 8; the wireless power supply system includes a transmitting device 80 and also includes a receiving device; usually, the transmitting device can be connected to multiple receiving devices. Three receiving devices are used as an example for description, and they are respectively a receiving device 81a, a receiving device 81b, and a receiving device 81c.

参见图9所示的一种无线照明系统的结构示意图；该无线照明系统包括无线供电系统90，还包括光源；该光源与无线供电系统的接收设备连接。在实际实现时，一台接收设备可以连接一个光源，也可以连接多个光源；图9中以一台接收设备连接两个光源为例进行说明，分别为光源91a、光源91b、光源91c、光源91d、光源91e、光源91f。Referring to the schematic structural diagram of a wireless lighting system shown in FIG. 9 ; the wireless lighting system includes a wireless power supply system 90 and also includes a light source; the light source is connected to a receiving device of the wireless power supply system. In actual implementation, one receiving device can be connected to one light source or multiple light sources; in Figure 9, one receiving device is connected to two light sources as an example for illustration, which are respectively light source 91a, light source 91b, light source 91c, light source 91d, light source 91e, and light source 91f.

本发明实施例提供的无线供电系统和无线照明系统，与上述实施例提供的无线供电系统的发射设备具有相同的技术特征，所以也能解决相同的技术问题，达到相同的技术效果。The wireless power supply system and the wireless lighting system provided by the embodiments of the present invention have the same technical features as the transmitting equipment of the wireless power supply system provided by the above embodiments, so they can also solve the same technical problems and achieve the same technical effects.

参见图10所示的一种无线供电系统的接收设备的结构示意图；该接收设备包括信号接收单元1010、恒压单元1011、整流单元1012、供电单元1013和检测单元1014；See FIG. 10 for a schematic structural diagram of a receiving device of a wireless power supply system; the receiving device includes a signal receiving unit 1010, a constant voltage unit 1011, a rectifying unit 1012, a power supply unit 1013 and a detection unit 1014;

信号接收单元1010、整流单元1012和供电单元1013依次连接；恒压单元1011分别与信号接收单元1010和检测单元1014连接；检测单元1014还与供电单元1013连接；The signal receiving unit 1010, the rectifying unit 1012 and the power supply unit 1013 are sequentially connected; the constant voltage unit 1011 is respectively connected to the signal receiving unit 1010 and the detection unit 1014; the detection unit 1014 is also connected to the power supply unit 1013;

上述信号接收单元1010用于接收无线磁信号，将无线磁信号转换为电信号；整流单元1012用于对电信号进行整流；供电单元1013用于对用电设备进行供电；恒压单元1011用于对电信号进行多级恒压处理，为检测单元供电；检测单元1014用于检测供电单元输出的供电电流和供电电压。The above-mentioned signal receiving unit 1010 is used to receive the wireless magnetic signal and convert the wireless magnetic signal into an electrical signal; the rectifying unit 1012 is used to rectify the electrical signal; the power supply unit 1013 is used to supply power to the electrical equipment; the constant voltage unit 1011 is used to Multi-level constant voltage processing is performed on the electrical signal to supply power to the detection unit; the detection unit 1014 is used to detect the supply current and the supply voltage output by the power supply unit.

上述信号接收单元和检测单元均可以通过单片机、DSP(Digital SignalProcessing，数字信号处理)等芯片及其外围电路实现；整流单元可以通过半波整流电路、全波整流电路或桥式整流电路等实现；上述供电单元通常与用电设备连接，或者设置有用于连接用电设备的接口。上述恒压单元可以为三级线性恒压电路，设置有三级线性恒压输出端，用于为电路其他部分供电。The above-mentioned signal receiving unit and detection unit can be realized by chips such as single-chip microcomputer, DSP (Digital Signal Processing, digital signal processing) and peripheral circuits thereof; the rectification unit can be realized by half-wave rectification circuit, full-wave rectification circuit or bridge rectification circuit, etc.; The above-mentioned power supply unit is usually connected with the electric device, or is provided with an interface for connecting the electric device. The above-mentioned constant voltage unit may be a three-level linear constant voltage circuit provided with a three-level linear constant voltage output terminal for supplying power to other parts of the circuit.

本发明实施例提供的一种无线供电系统的接收设备，通过信号接收单元接收无线磁信号，将无线磁信号转换为电信号；通过整流单元对电信号进行整流；通过供电单元对用电设备进行供电；通过恒压单元对电信号进行多级恒压处理，为检测单元供电；通过检测单元检测供电单元输出的供电电流和供电电压。该方式可以将有线传输的电能转换为无线传输的磁信号为用电设备供电，避免了大量铺设供电线路造成的工程量大，安装费时费力以及后期用电安全的问题，提高了供电方式的便捷性和安全性。A receiving device of a wireless power supply system provided by an embodiment of the present invention receives a wireless magnetic signal through a signal receiving unit and converts the wireless magnetic signal into an electrical signal; rectifies the electrical signal through a rectifying unit; Power supply; through the constant voltage unit, multi-stage constant voltage processing is performed on the electrical signal to supply power to the detection unit; through the detection unit, the power supply current and the power supply voltage output by the power supply unit are detected. This method can convert the electric energy transmitted by wire into magnetic signal transmitted by wireless to supply power for electric equipment, avoiding the large amount of engineering caused by laying a large number of power supply lines, time-consuming and labor-intensive installation, and the safety of power consumption in the later stage, and improving the convenience of power supply mode sex and safety.

本发明实施例还提供了另一种无线供电系统的接收设备；参见图11所示的一种无线供电系统的电路图；该接收设备在图10中所示接收设备基础上实现；该接收设备包括信号接收单元1010、恒压单元1011、整流单元1012、供电单元1013和检测单元1014；本实施例中，以用电设备为可充电锂电池为例进行描述。The embodiment of the present invention also provides another receiving device for a wireless power supply system; refer to the circuit diagram of a wireless power supply system shown in Figure 11; the receiving device is implemented on the basis of the receiving device shown in Figure 10; the receiving device includes The signal receiving unit 1010, the constant voltage unit 1011, the rectifying unit 1012, the power supply unit 1013, and the detection unit 1014; in this embodiment, the electric device is a rechargeable lithium battery as an example for description.

上述信号接收单元包括接收线圈和谐振电容；该接收线圈和谐振电容串联；如图11中，接收线圈为L2，谐振电容为C4，二者组成串联谐振电路。The above-mentioned signal receiving unit includes a receiving coil and a resonant capacitor; the receiving coil and the resonant capacitor are connected in series; as shown in Figure 11, the receiving coil is L2, and the resonant capacitor is C4, and the two form a series resonant circuit.

上述整流单元包括多组整流二极管；如图11所示，整流单元共包括四组整流二极管(D3至D6)，每组包括同向并联的两个整流二极管；该整流二极管可以采用肖特基二极管实现，例如，MBR20200CT型；肖特基二极管以贵金属(金、银、铝、铂等)A为正极，以N型半导体B为负极，利用二者接触面上形成的势垒具有整流特性而制成的金属-半导体器件，常用于在低压、大电流输出场合下的高频整流。The above-mentioned rectification unit includes multiple sets of rectification diodes; as shown in Figure 11, the rectification unit includes four sets of rectification diodes (D3 to D6) in total, and each set includes two rectification diodes connected in parallel in the same direction; the rectification diodes can be Schottky diodes Realize, for example, MBR20200CT type; Schottky diodes use noble metal (gold, silver, aluminum, platinum, etc.) The metal-semiconductor device is often used for high-frequency rectification in low-voltage, high-current output occasions.

电信号经D3至D6全桥整流后，即输入至供电单元为用电设备进行供电；该供电单元内设置有运算放大器；运算放大器分别与用电设备的供电端口和检测单元连接；运算放大器用于运算生成供电电流的电流检测信号，将电流检测信号发送至检测单元。该供电单元内还设置有分压电阻；该分压电阻分别与用电设备的供电端口和检测单元连接；经分压电阻分压后的供电电压输入至检测单元。After the electric signal is rectified by D3 to D6 full-bridge, it is input to the power supply unit to supply power for the electrical equipment; the power supply unit is equipped with an operational amplifier; the operational amplifier is respectively connected to the power supply port and the detection unit of the electrical equipment; the operational amplifier is used A current detection signal of the supply current is generated through calculation, and the current detection signal is sent to the detection unit. The power supply unit is also provided with a voltage-dividing resistor; the voltage-dividing resistor is respectively connected to the power supply port of the electrical equipment and the detection unit; the power supply voltage divided by the voltage-dividing resistor is input to the detection unit.

图11中，运算放大器LM358的输出端与检测单元中的芯片的引脚3连接，用于输出电流检测信号；用电设备锂电池的一端连接有串联有分压电阻R22和R23，R22和R23之间，经R19输出供电电压至检测单元中的芯片的引脚4。In Figure 11, the output terminal of the operational amplifier LM358 is connected to the pin 3 of the chip in the detection unit for outputting the current detection signal; one end of the lithium battery of the electric device is connected with a series voltage dividing resistor R22 and R23, R22 and R23 Between, the power supply voltage is output to pin 4 of the chip in the detection unit through R19.

上述检测单元包括MCU芯片和散热风扇；当MCU芯片检测到供电电流或供电电压高于第一设定阈值时，启动散热风扇。该检测单元还包括无线通信电路；MCU芯片还用于通过无线通信电路向发射设备发送功率调节信号，以使发射设备调节发射功率。该无线通信电路可以为WIFI(Wireless Fidelity，无线保真)模块、GSM(Global System for MobileCommunication，全球移动通信系统)模块、Zigbee模块等。The detection unit includes an MCU chip and a cooling fan; when the MCU chip detects that the supply current or the supply voltage is higher than the first set threshold, the cooling fan is started. The detection unit also includes a wireless communication circuit; the MCU chip is also used to send a power adjustment signal to the transmitting device through the wireless communication circuit, so that the transmitting device adjusts the transmitting power. The wireless communication circuit may be a WIFI (Wireless Fidelity, Wireless Fidelity) module, a GSM (Global System for Mobile Communication, Global System for Mobile Communication) module, a Zigbee module, and the like.

上述信号接收单元、整流单元、供电单元和检测单元可以通过无线接收模块实现，该模块内部集成了振荡器、PWM调制、驱动放大可直接驱动MOS功率管，用来对无线接收机的电压限压，以避免输出电压过高而损坏相关零件。The above-mentioned signal receiving unit, rectifying unit, power supply unit and detection unit can be realized by a wireless receiving module, which integrates an oscillator, PWM modulation, drive amplifier and can directly drive a MOS power tube to limit the voltage of the wireless receiver. , to avoid damage to related parts due to excessive output voltage.

当锂电池达到满电电压(54V)时，经过R22，R23电阻分压后送到U5的4脚(基准2.5V)，4脚达到2.5V后，经内部无线通讯或无线通信电路传输到发射设备，发射设备则调小占空比，减低充电电流，电压随之下降；当电压下降至低于54V时，发射设备的占空比又调大，以此反复不断的调制；根据充电电池的特性，充电电流会逐渐的减少，直到电池电压完全充满；当充电电流小于设定值(如500MA)时，发射设备停止工作进入待机状态，充电完成。When the lithium battery reaches the full voltage (54V), it is sent to the 4th pin of U5 (reference 2.5V) after being divided by R22 and R23 resistors. After the 4th pin reaches 2.5V, it is transmitted to the transmitter through the internal wireless communication or wireless communication circuit equipment, the transmitting equipment will adjust the duty cycle to a small value, reduce the charging current, and the voltage will drop accordingly; when the voltage drops below 54V, the duty cycle of the transmitting device will be increased again, so as to repeatedly modulate; according to the rechargeable battery Characteristics, the charging current will gradually decrease until the battery voltage is fully charged; when the charging current is less than the set value (such as 500MA), the transmitting device stops working and enters the standby state, and the charging is completed.

当出现线路故障时，例如锂电池在充电过程中被断开，输出电压必然会升高，电阻R21、R9为分压取样电阻；当达到2.5V(Uo＝2.5*{1+(R1/R2)})的基准电压时，U6的输出占空比可调的方波来驱动Q2Q3导通，以对电压斩波，输出电压下降；当U6的6脚电压小于2.5V时，1脚输出低电平，Q2Q3截止，输出电压升高，依次周而复始，可以使输出电压会限制在安全阈值内，保护相关零件不会过高电压损坏。When a line fault occurs, such as a lithium battery being disconnected during charging, the output voltage will inevitably increase, and resistors R21 and R9 are voltage-dividing sampling resistors; when it reaches 2.5V (Uo=2.5*{1+(R1/R2 )}) when the reference voltage, U6’s output duty cycle adjustable square wave to drive Q2Q3 conduction, in order to chop the voltage, the output voltage drops; when U6’s 6-pin voltage is less than 2.5V, 1-pin output is low level, Q2Q3 cuts off, the output voltage rises, and the cycle repeats in turn, so that the output voltage will be limited within the safe threshold, and the related parts will not be damaged by excessive voltage.

本发明实施例所提供的无线供电系统的发射设备、无线供电系统和无线照明系统的计算机程序产品，包括存储了程序代码的计算机可读存储介质，所述程序代码包括的指令可用于执行前面方法实施例中所述的方法，具体实现可参见方法实施例，在此不再赘述。The transmitting device of the wireless power supply system, the computer program product of the wireless power supply system and the wireless lighting system provided by the embodiments of the present invention include a computer-readable storage medium storing program codes, and the instructions included in the program codes can be used to execute the preceding method For the method described in the embodiment, the specific implementation may refer to the method embodiment, and details are not repeated here.

另外，在本发明实施例的描述中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In addition, in the description of the embodiments of the present invention, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

最后应说明的是：以上所述实施例，仅为本发明的具体实施方式，用以说明本发明的技术方案，而非对其限制，本发明的保护范围并不局限于此，尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，其依然可以对前述实施例所记载的技术方案进行修改或可轻易想到变化，或者对其中部分技术特征进行等同替换；而这些修改、变化或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的精神和范围，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应所述以权利要求的保护范围为准。Finally, it should be noted that: the above-described embodiments are only specific implementations of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting them, and the scope of protection of the present invention is not limited thereto, although referring to the foregoing The embodiment has described the present invention in detail, and those skilled in the art should understand that any person familiar with the technical field can still modify the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention Changes can be easily thought of, or equivalent replacements are made to some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the scope of the present invention within the scope of protection. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.