CN212435599U - Anti-static power supply device - Google Patents

Fig. 1 shows a schematic structural diagram of the antistatic power supply device according to an embodiment of the present invention. The embodiment of the utility model provides a prevent static power supply unit includes: the

100, the

200, the

300, the

400, the

510, the

520, and the

600 may be integrated on a circuit board.

Supply

01 can with the mains connection who provides 220V voltage, including live wire L and zero line N,

510 and

520 can be three hole sockets, and external equipment 02 and

03 can be connected with

510 and

520 respectively, through the utility model discloses prevent that static power supply unit acquires working power supply. The power supply connected with the power

01 can also be a mains supply with other voltages.

The

100 includes an

110 and an

150 for connecting with the anti-static device. The anti-static band is used as an example, but the anti-static device is not limited to the anti-static band. The anti-static bracelet consists of three parts, wherein the first part is a plug directly connected with the anti-static power supply device, and the plug can be processed by metal or other conductive materials; the second part is a lead connected with the plug and the resistor arranged in the bracelet; the third part is the main part of antistatic bracelet, including fixing the wrist strap on the wrist, closely attaching the metal sheet and the resistance of being connected with metal sheet and wire with wrist skin. The

110 and the

150 of the control

100 both include two disconnected metal connecting parts, the metal connecting part on the upper part is connected with the inspection circuit, the metal connecting part on the lower part is connected with the grounding

140 through the resistor R2 and is grounded, and the anti-static hand ring can be connected with the grounding

140 through the metal connecting part on the lower part and the R2 to realize grounding. When the plug of the antistatic bracelet is inserted into 110 or 150. The control

100 measures the equivalent resistance between the connected anti-static bracelet and the ground through the metal connecting part. According to the common industry standard, the human body grounding resistance is generally ensured to be less than 10 megaohms.

The

110 and the

150 of the control

100 may be referred to as an anti-static device detection port, and the control

100 is connected to an anti-static device through the anti-static device detection port to detect whether the anti-static device is in an effective anti-static state, where the anti-static device may be the above-mentioned anti-static bracelet or other anti-static equipment. The embodiment of the utility model provides an in, prevent that the static state effectively indicates that the human body contacts well with the sheetmetal of preventing static bracelet, keeps reliably connecting, and contact resistance between human body and the ground is less than safe threshold value.

The

111 and 112 of the

100 are connected to the

203 and 204 of the

200 as power supply ports of the control motherboard, respectively. The

200 supplies power to the

100. The

201 and the

202 of the

200 serving as a power input port are connected with the live wire and the neutral wire of 220V alternating current power supply. The live wire is connected to the

201, the neutral wire is connected to the

202, meanwhile, a

400 and a

600 are connected in series on the live wire, and the

400 is arranged between the

600 and the

201 of the

200. Wherein, the utility model discloses the operating power supply who is external equipment that does not restrict the access power is 220V's alternating current power supply, and practical application confirms with the demand power supply type of external equipment.

The

121 and the

122 of the control

100 provide power for the

300. The

121 is a positive end of the output power supply and is connected with the

311 of the

300; the

122 is a negative terminal of the output power source and is connected to the

312 of the IO output module. The

131 is connected to the

321 of the

301 of the

300, and outputs a control signal to the

301; the

132 is connected to the

322 of the

302 of the

300, and outputs a control signal to the second channel. As an embodiment, the power supply of the control signal of the

300 may be selected to be 5V, that is, the output power supply of the

121 of the control

100 is +5V, and the power supply is used to drive the relay in the

300, and may be selected according to the specification of the adopted relay in practical application. A relay is a switch control device, which may be understood to include a switch and a switch controller that controls the state of the switch, and the means to achieve this function is not limited to relays.

The

121 and the

131 of the control

100 control the

301 together, and the

121 and the

132 control the

302 together.

The

141 of the control

100 is a network communication port of an RJ45 interface (Registered Jack 45, which is an information socket connector in a wiring system), through which network connection between the anti-static power supply device and the external device can be realized, so that the external device can obtain the state of the anti-static bracelet through the network. The

142 is a wireless signal transceiving antenna, and can receive and transmit wireless signals. The control

100 is provided with a wireless communication module therein, and the wireless connection is established between the

142 and an external device, so that the external device can obtain the state of each channel of the anti-static power supply device through wireless communication, thereby controlling the external device in a wireless manner.

Prevent static devices such as static bracelet still can include wireless transmitting function, sends wireless signal through wireless communication module, will prevent that the static state prevents that whether static device has the information that is used and whether effectual through wireless signal transmission for

100 promptly, avoids the direct electricity with the control mainboard to be connected, avoids possible high-tension electricity to safe threat, realizes connection and signal transmission with wireless simultaneously, can improve practicality, the convenience of product.

The

200 in this embodiment is a 12V power adapter, receives an ac power input of 220V, and outputs a 12V voltage to the

100.

200 in the embodiment of the utility model provides an in the antistatic power supply unit, can make the alternating current power supply who prevents the direct access of electrostatic power supply unit 220V, need not to add outside auxiliary power supply equipment again, improved the use of preventing electrostatic power supply unit and experienced. The control mainboard uses low voltage power, keeps apart high-voltage component and low-voltage component through

200 and

300, and the detection and the circuit control work of preventing static bracelet are handled to the low-voltage component, and high-voltage component handles high-pressure alternating current power supply, can ensure the safety of preventing static power supply unit.

In this embodiment, the

300 has two solid state relay modules and two relay modules, and 311 and 312 are power input terminals of this module. The

321 is a control signal input end of the

301, and the bias states of the switches of the solid-

11 and the

12 are simultaneously controlled by controlling the

321; the

322 is a control signal input of the

302, and the bias states of the switches of the solid-

21 and the

22 are simultaneously controlled by the

322. The

312 may be a ground end, which grounds the

300 to derive static electricity possibly generated by the

300, thereby ensuring an anti-static effect.

312 serves as the common negative terminal of the electrical circuit of

321 and

322.

313 and 314 are output terminals of the

301 of the solid-state relay, corresponding to two terminals of the switch of the solid-

11, and may also be referred to as input terminal and output terminal of the solid-

11; 323 and 324 are outputs of the

302 of solid state relay corresponding to two ends of the switch of the

21, which may also be referred to as input and output of the

21. 313 and 323 are both connected to the mains power line and the access point is between the

400 and the

200, i.e. the fuse box is connected to the 220V mains power line, which ensures electrical safety. The other ends of the respective outputs of the solid-

11 and the solid-

21, i.e., the

314 and the

324, are connected to the

512 and the

522 of the

510 and the

520, respectively. When preventing static bracelet is effective,

100

321 and

322 of

300, provides the actuating signal of the switch action of relay, and the respective switch of control

11 and

21 switches on, makes 220V power live wire be connected to

510 and

520's

512 and

522, realizes realizing again external power supply after preventing static measures is effective, ensures the validity of preventing static measures. The principle of the

12 and the

22 is the same, and the description is omitted.

Wherein, the

400 of this embodiment is connected on the live wire of 220V commercial power for general operation, and does not restrict the utility model discloses an implement, switch 600 does not restrict yet and is the single-pole switch, can also set up to the double-pole switch, carries out on-off control to live wire and zero line simultaneously, and the power access end can understand the power supply access port for external equipment working power supply, and

510 and

520 can understand the output port for power supply, the utility model discloses a prevent that static power supply unit controls the work power supply of external equipment through the break-make of controlling the power supply route between this power supply access port to this power supply output port.

Output ends 333, 334 and 335 of the

12 are contact outputs of the

301 on the

300, where 333 is a switch normally open end, 334 is a switch normally closed end, and 335 is a switch common end;

343, 344, 345 of

22 are contact outputs of

302 on

300, where 343 is a switch normally open end, 344 is a switch normally closed end, and 345 is a switch common end.

The switch

335 of the

12 can be connected to the ground terminal or the positive power terminal of the working power supply of different external devices, or the control signal terminal of the external devices, and the connected power supply or signal source is determined according to the requirements of the external devices. For example, the working voltage of a certain device is 24V dc voltage, the switch

335 of the

12 can be connected to the positive terminal of a 24V power supply, and the switch normally-

333 is connected to the power supply terminal of an external device, so that when the anti-static state of the anti-static device of the corresponding detection port is qualified, the switch normally-

333 of the

12 is controlled to be on, and 24V dc working voltage is provided for the external device; the switch

335 of the

12 may also be grounded, and may also control the power supply of the external device. The

22 has the same principle as the

12, and will not be described in detail. Correspond with setting up a plurality of passageways, set up two or

12 and

22, its respective switch common terminal can connect DC power supply or signal line, so that the utility model discloses prevent that static

100 can control the break-make of the power or the signal of different external equipment.

The utility model discloses prevent static

100 and set up

510 and

520, external equipment 02 and

03 acquire 220V working power supply through

510 and

520.

12 and

22 can control the power of the external equipment that is connected with it or the break-make of signal come the operating condition of controlgear, do not restrict to equipment such as workstation or assembly line, promptly the utility model discloses an prevent that static power supply unit does not restrict concrete application scene.

Whether

100 detects

110, 150 has the input, whether prevent that the static bracelet has promptly by the use, detect the access resistance of the anti-static bracelet of access simultaneously, this access resistance is the resistance between the sheetmetal of preventing static bracelet and human contact and ground, handles and judges whether this resistance satisfies the requirement, if satisfy the requirement then output control signal to

300's

321, 322. The

300 receives the valid control signal and then turns on the channel, so that the

313 and the

314 of the corresponding solid-state relay are turned on or the

323 and the

324 of the corresponding solid-state relay are turned on, and the

510 or 520 of the corresponding channel has a power input, so that the electric device such as the instrument and the like connected to the socket of the electrostatic prevention power supply device provided in this embodiment has 220V power supply.

Similarly, the input signals at the

321 and 322 make the normally

333 of the relay module of the corresponding channel connect with the common terminal 335 (or the normally

343 and the common terminal 345), and the normally

334 of the corresponding channel disconnect with the common terminal 335 (or the normally

344 and the common terminal 345), thereby controlling the switching of the power supply of the external device connected with the normally closed contact.

The

510 and the

520 provide an ac 220V power to an external device. Prevent static power supply unit through the state that detects wearing, connection and ground connection of preventing static bracelet, the power supply of control this socket reaches the purpose of control external equipment power.

The

511, 521 of the

510 and the

520, respectively, are connected to the neutral of the ac input. The socket of this embodiment is a triple-jack socket, and the

513, 523 are grounded.

The embodiment of the utility model provides an antistatic power supply unit and outside being connected including

110 and 150 of alternating current input, control mainboard to and

140, all

140 grounds of the earthing terminal of each part in this embodiment.

The embodiment of the utility model provides a prevent static power supply unit still includes alarm device. The alarm device is arranged on the control

100 and comprises a first indicator light D1, a second indicator light D2 and a buzzer F1, wherein the first indicator light D1 correspondingly indicates the

301, and the second indicator light D2 correspondingly indicates the

302. One end of the first indicator light D1, the second indicator light D2 and the buzzer F1 is connected to a power supply inside the control

100, and the other end thereof can receive corresponding control signals, so as to indicate an alarm state.

The

600 is closed, when the anti-static bracelet is not connected to the

110 or 150 of the

100, namely, the plug of the anti-static bracelet is not connected to the anti-static power supply device, at this time, the first indicator light D1 and the second indicator light D2 are set as red indications, the corresponding channel of the

300 is not turned on, the

510 and 520 do not have power output, and the external device connected to the socket of the anti-static power supply device of the present embodiment does not have power supply. A first indication state is defined, the indication lamp is red, and the corresponding anti-static bracelet is not connected with the

100.

The

600 is closed, the plug of the anti-static bracelet is connected to the

110 or 150 of the

100, and the

100 measures the equivalent resistance between the connected anti-static bracelet and the ground. If prevent that static bracelet has the damage, does not wear or prevent that the sheetmetal of static bracelet does not fully contact with the staff human body, the measurement resistance value can be great. The control

100 is set with a standard threshold value, at this time, the measured resistance value is greater than the set threshold value, the corresponding indicator light of the corresponding channel is set to be in a red state, and the indicator light flashes to indicate, and meanwhile, the buzzer sounds to give an alarm. The output end corresponding to the control

100 has no control signal output to the control input end of the corresponding channel of the

300, the corresponding channel is not conducted, that is, the solid-

11 and the

12 correspond to the solid-

21 and the

22, the channel is not conducted, that is, the switch of the corresponding relay is in an off state, the corresponding sockets in the two

510 and 520 have no 220V ac output, and the two channels are independently controlled. Define the second indication state, the red scintillation of pilot lamp, buzzer sound production is reported to the police simultaneously, and the bracelet is prevented static with control mainboard connection and is prevented static detection to the correspondence, nevertheless prevents that static bracelet is not in effective operating condition.

The

600 is closed, the plug of the anti-static bracelet is connected to the

110 or 150 of the

100, and the equivalent resistance between the anti-static bracelet connected to the

100 in a test mode and the ground is controlled. When the anti-static bracelet works effectively, the resistance value of the test is smaller than the set threshold value, the corresponding indicator lamp corresponding to the channel is set to be in a green state, and the corresponding output end in the output ends 131 and 132 of the

100 outputs a control signal to the channel corresponding to the

300. The

300 receives the control signal, switches on the solid-state relay and the relay corresponding to the channel, switches on two output ends corresponding to the solid-state relay, connects the live wire

512 or 522 corresponding to the

510 or 520 with the live wire of the 220V power supply, and has power supply with the external device connected to the corresponding socket, that is, the external power supply is performed only when the electrostatic protection measure is ensured to be in place, so that the electrostatic damage to the device or the device is avoided during the work. And defining a third indication state, indicating by a green light, and enabling the corresponding anti-static measures to be effective.

When the

600 is turned off, the

200 has no input or output, the control

100 has no power supply, and no effective control signal is output to the

300, the indicator light is not on, the buzzer does not sound, all channels of the

300 are open-circuited, the

510 and 520 have no ac power output, and the external device connected to the sockets has no power supply, so that the safety locking effect is achieved.

The utility model discloses prevent static power supply unit and adopt binary channels solid state relay, the part that first passageway and second passageway are located

100 is independent processing separately, the first passageway corresponds

110, first pilot lamp D1 and

131, the second passageway corresponds

150, second pilot lamp D2 and

132, but all share a bee calling organ, after all, the user can't judge the concrete source of sound signal in the minizone to the pilot lamp can clearly show the problem source. The alarm indication can also be performed by voice broadcasting by a voice module. Meanwhile, the anti-static bracelet of the embodiment is grounded through the grounding

140 of the control

100, and when the control

100 is not grounded, the indicator light is red, corresponding to the first indication state, and no power supply is output in all channels. Wherein, first passageway corresponds

11 and

12, and the second passageway corresponds

21 and

22, designs for the binary channels relay in this embodiment, can part the design with it and be a plurality of single channel relays, and

300 is not limited to adopting a binary channels relay to realize the multichannel promptly, can also constitute with the combination of a plurality of single channel relays, simultaneously the utility model discloses an prevent static power supply unit also is not limited to the binary channels, can also make the multichannel.

300 adopts the binary channels relay, produces hardware damage and unable normal during operation at one of them passageway, and another passageway can normally work, can avoid the device to damage the condition of bringing suspending staff's normal work, improves the utility model discloses a prevent static power supply unit's fault-tolerance, improve practical value. The control

100 is provided with two detection ports corresponding to the two channels, so that the independence of the components of the two channels can be ensured, and the fault tolerance can be guaranteed. If the reliability of the components of the

100 is high, only one detection port may be disposed on the

100, and two channels of the

300 may be controlled simultaneously. In this embodiment, the state of the

300 when no effective control signal is input is open circuit, so that it is ensured that the power is supplied to the socket only when the worker uses the anti-static bracelet, and the anti-static bracelet effectively works, and supplies power to the external device connected to the socket.

The utility model discloses prevent parts such as static power supply unit's

100,

200,

300 all can be integrated and directly use on a circuit board, also can separately assemble the use, and each part independence can be good, and practical value is high.

Fig. 2 shows a schematic diagram of a partial circuit structure of the anti-static power supply device according to an embodiment of the present invention. Meanwhile, with reference to the above contents of the present specification, after the 220V power of the commercial power is connected to the

1200, the 12V power 1203 is output after being sequentially processed by the

1201 and the

1202. The

1100 includes a 5V regulator 1104, and the 5V regulator 1104 is connected to the 12V power supply 1203 for obtaining power supply and providing 5V stable voltage output. The Hand is connected to the

1101 of the control

1100 through a resistor R1 inside the anti-static bracelet, and the interface between the resistor R1 and the

1101 is also grounded through a resistor R2. A threshold value setter W1 is connected to the

1101, the

1101 detects equivalent resistance to the ground after a human body passes through an anti-static bracelet, a detection signal is output to a

1102, the

1102 outputs the rectified signal to a

1, a

2 and a

3, the three comparators can use stable voltage provided by a 5V voltage stabilizer as a reference signal source, the

1, the

2 and the

3 respectively compare the rectified detection signal and output corresponding comparison result signals to a

1103 and a light emitting diode, wherein the driver receives the corresponding comparison result signals and outputs driving signals to a solid-state relay, a switch of the solid-

1301 is driven to be closed, an external load 1501 is communicated with a live wire L of a mains supply, a loop from the live wire L to a zero wire N is formed, and power supply is achieved; the comparison result signals correspondingly output to the light emitting diodes can respectively drive the light emitting diodes to carry out red light indication and green light indication.

The driving power source of the driver and the light emitting diode may be selected to be the 12V voltage provided by the

1200, and may be actually selected according to the specification of the driver and the light emitting diode, and the output voltage of the power adapter or the specification of the driver and the light emitting diode are selected, which is not limited in this application. An external load is understood to be an external device connected to the socket. The 5V voltage stabilizer provides stable voltage serving as reference, and can be actually selected according to requirements. The

600 is a power switch, and the

400 may be implemented by selecting an

401 of 1A standard or an air self-breaking switch. External load's plug and socket connection back, external load inserts the utility model discloses an prevent static power supply unit can understand as external load 1501's lug connection, has avoidd the description to the socket to more audio-visual demonstration is to external equipment's power supply control efficiency.

The above further explanation of fig. 2 mainly lies in the explanation of the partial structures of the

1100 and the

1200 to show the implementability of the anti-static power supply device of the embodiment of the present invention, wherein the detection of a single channel is taken as an example, and the detection principle of other channels is the same, which is not described again.

Fig. 3 shows a schematic diagram of a connection circuit structure of the anti-static power supply device and the anti-static bracelet provided by the embodiment of the present invention. As shown, the circuit structure can be divided into A, B, C, D four parts, wherein, part a is a human body part, taking Hand as an example; the part C is an anti-static bracelet part, and the resistor R1 is an internal resistor of the anti-static bracelet; the part B comprises a resistor R3, and the resistor R3 is an equivalent resistor between a human body and the anti-static bracelet; the D section is a detector section, i.e., a circuit that controls a detection port section of the

1100. Wherein, the detector part includes a detection connection port Check for connecting the anti-static bracelet for detection, corresponding to the detection ports of the

110 and the

150.

Wherein, inside the detector, that is, inside the control

100, there is an equivalent resistor R2 from the detection port to the ground, and the resistance of the resistor R2 is about 750 kohm; the resistance value of a resistor R1 inside the anti-static bracelet is generally designed to be 1M ohm; the resistance of the contact resistor R3 between the human body and the anti-static bracelet is about dozens of kilohms to several megohms. According to the general standard of the industry, the grounding resistance of the human body is generally ensured to be less than 10M ohm, the grounding of the human body is considered to be good, and the anti-static measures are effective, namely the anti-static effect is achieved. If 10M ohm is used as a reference standard, the

1100 detects the anti-static state of the accessed anti-static bracelet, namely, the resistance value of the equivalent resistor of the human body grounding is detected, as a safety guarantee, the safety threshold (safety resistor) of the detection value of the resistor R3 can be designed to be 5M ohm, namely, the reference signal of the comparator corresponds to the 5M ohm, when the detection signal of the detection value shows that the detection value of the resistor R3 is 8M ohm, the anti-static measure can be judged not in place, namely, the anti-static measure is invalid, the comparator outputs a corresponding result signal to the driver and the light emitting diode or the buzzer, the driver does not give out a driving signal to the solid state relay, the light emitting diode is indicated by a red light, and the buzzer is driven to give an alarm. In the present embodiment, the safety threshold, i.e., the safety resistance, is based on the detection value of the resistance R3, and actually, the total resistance between the human body and the ground may also be used as a reference.

1. An antistatic power supply device comprising a power access port connected to a power source, comprising:

the power supply output port is connected with the power supply access port and is connected with external equipment needing power supply;

the control mainboard comprises an anti-static detection port connected with the anti-static device, a power supply port connected with a power supply of the control mainboard and a control signal output port;

the IO output module comprises a switch and a switch controller, wherein the switch controller is connected with a control signal output port of the control mainboard and controls the switch to be switched on and off; the switch is connected in series between the power supply access port and the power supply output port.

2. The antistatic power supply device according to claim 1,

the switch and the switch controller are solid state relays;

the solid-state relay comprises a control signal receiving port and two output ports, the control signal receiving port of the solid-state relay is connected with the control signal output port of the control mainboard, and the two output ends of the solid-state relay are respectively connected with the power supply access port and the power supply output port.

3. The antistatic power supply device according to claim 1,

the IO output module further comprises a relay, the relay comprises a control signal receiving port, a switch public end, a switch normally-closed end and a switch normally-opened end, the control signal receiving port of the relay is connected with a control signal output port of the control mainboard, the switch public end of the relay is connected with an external power source or a signal source, and the switch normally-opened end or the switch normally-closed end is connected with a power source end or a signal end of the controlled equipment to control the on-off of the power source or the signal of the controlled equipment.

4. The antistatic power supply device according to claim 3,

the switch and the switch controller are solid state relays;

the solid-state relay comprises a control signal receiving port and two output ports, the control signal receiving port of the solid-state relay is connected with the control signal output port of the control mainboard, and the two output ends of the solid-state relay are respectively connected with the power supply access port and the power supply output port;

and a control signal output port of the control mainboard is simultaneously connected with a control signal receiving port of the solid-state relay and a control signal receiving port of the relay.

5. The antistatic power supply device according to claim 1,

the IO output module comprises at least two groups of the switches and the switch controller.

6. The antistatic power supply device according to claim 1 or 5,

the number of the power supply output ports matches the number of the switches and the switch controller.

7. The antistatic power supply device according to claim 1,

the quantity of the anti-static detection ports and the quantity of the control signal output ports of the control mainboard are matched with the quantity of the switches and the switch controllers.

8. The antistatic power supply device according to claim 1,

the voltage of the power supply comprises a mains voltage.

9. The antistatic power supply device according to claim 3,

the voltage of the external power source includes an alternating current voltage and a direct current voltage.

10. The antistatic power supply device according to claim 1,

the anti-static device comprises a grounding end, the control mainboard comprises a grounding end, and the grounding end of the anti-static device is electrically connected with the grounding end of the control mainboard.

11. The antistatic power supply device according to claim 1, wherein the control main board further comprises:

and the network communication port is in communication connection with the external equipment.

12. The antistatic power supply device according to claim 1, wherein the control main board further comprises:

a wireless communication module;

and the wireless transceiving antenna is connected with the wireless communication module.

13. The antistatic power supply device according to claim 1,

the control mainboard is an integrated circuit board.

14. The antistatic power supply device according to claim 1,

the power supply of control mainboard is power adapter, power adapter include with the power input port that the power access port is connected with the power output port that the power supply port of control mainboard is connected.

15. The antistatic power supply device according to claim 1, further comprising:

and the fuse box is connected between the power supply access port and the IO output module in series.

16. The antistatic power supply device according to claim 14, further comprising:

and the fuse box is connected between the power supply access port and the power supply access port of the power adapter in series.

17. The antistatic power supply device according to claim 15 or 16, characterized by further comprising:

and the power switch is connected between the fuse box and a power supply access port of the anti-static power supply device.

18. The antistatic power supply device according to claim 1, further comprising:

the alarm indication assembly comprises an indication lamp and a buzzer.