CN112902829B - Electronic equipment and opening and closing angle detection method thereof - Google Patents

Referring to fig. 1 to 3, an embodiment of the present application discloses an electronic device, which includes a

first folding portion

100, a

second folding portion

200, and a

processing circuit

400.

Specifically, the

first folding portion

100 may be rotatably connected to the

second folding portion

200, so that the electronic device may have a folded state and an unfolded state, and of course, the electronic device may be folded at any angle, and when the electronic device is in the folded state, the

first folding portion

100 and the

second folding portion

200 may be stacked on each other, as shown in fig. 2, so that the electronic device is convenient for a user to carry or store; when the electronic device is in the unfolded state, the first folded

portion

100 and the second folded

portion

200 may be coplanar, thereby presenting a larger display area.

In this embodiment, the

first folding portion

100 includes a

first charging coil

110, the

second folding portion

200 includes a

second charging coil

210, the

first charging coil

110 and the

second charging coil

210 form a capacitive device, the

first charging coil

110 and the

second charging coil

210 are both in an energized state, and the

processing circuit

400 may be configured to detect a first capacitance of the capacitive device, where an angle at which one of the

first folding portion

100 and the

second folding portion

200 rotates relative to the other is an opening and closing angle of the electronic device.

The

processing circuit

400 may determine the first opening and closing angle of the electronic device according to the corresponding relationship between the capacitor and the opening and closing angle, and it should be noted that the corresponding relationship between the capacitor and the opening and closing angle needs to be preset, or may determine the distance between the center of the

first charging coil

110 and the center of the

second charging coil

210 according to the capacitor, and knowing the distance between the center of the

first charging coil

110 and the folding center of the electronic device and the distance between the center of the

second charging coil

210 and the folding center of the electronic device (i.e., the first axis described later) according to a capacitance calculation formula, and then calculate the first opening and closing angle through a trigonometric function. Specifically, the corresponding relationship between the capacitance and the opening and closing angle can also be obtained through experiments.

In a specific detection process, by detecting the first capacitance between the

first charging coil

110 and the

second charging coil

210 and determining the first opening and closing angle corresponding to the first capacitance according to the corresponding relationship between the capacitance and the opening and closing angle, the detection of the first opening and closing angle of the electronic device can be finally realized. The

first charging coil

110 and the

second charging coil

210 can be used for charging other devices by the electronic device or charging the electronic device by other devices, and can also be used as a member for detecting the first opening and closing angle, so that the purpose of dual purposes of one object is achieved. Compared with the background art, the scheme can fully utilize the existing components of the electronic equipment to realize the detection of the opening and closing angle, and an independent angle detection mechanism is not required to be specially and additionally configured, so that the number of the components for detecting the first opening and closing angle can be certainly reduced, and the occupation and weight of the internal space of the electronic equipment can be further reduced.

In addition, the electronic apparatus may set a preset angle in advance, when the first opening and closing angle is greater than the preset angle, at least one of the functional device of the

first folding portion

100 and the functional device of the

second folding portion

200 is in an operating state, and when the first opening and closing angle is not greater than the preset angle, at least one of the functional device of the

first folding portion

100 and the functional device of the

second folding portion

200 is in a stop operating state, thereby reducing power consumption of at least one of the

first folding portion

100 and the

second folding portion

200, and further prolonging a duration of the electronic apparatus.

In an alternative arrangement, the

processing circuit

400 may include a

detection sub-circuit

410 and an

angle determination sub-circuit

420, where, in particular, the

detection sub-circuit

410 may be configured to detect a first capacitance of the capacitive device, the

angle determination sub-circuit

420 may be connected to the

detection sub-circuit

410, so as to implement information transmission, and the

angle determination sub-circuit

420 may be configured to determine, according to the first capacitance, a first opening/closing angle of the electronic device through a correspondence between the capacitance and the opening/closing angle. In particular, the electronic device may include a central processing chip, which may integrate the

processing circuit

400. Specifically, the

detection sub-circuit

410 and the

angle determination sub-circuit

420 are integrated on a central processing chip.

In a further technical solution, the

detection sub-circuit

410 may include a

voltage detection device

411 and a

calculation device

412, where the

voltage detection device

411 may be used to detect a voltage between the

first charging coil

110 and the

second charging coil

210, the charge amount of the capacitor device is a first charge amount, the

calculation device

412 may be used to calculate a first capacitance according to the first charge amount and the voltage, and it should be noted that the

calculation device

412 calculates the first capacitance through a formula c=q/U, where C is the first capacitance, Q is the first charge amount, and U is a voltage between the

first charging coil

110 and the

second charging coil

210, and a person skilled in the art may detect the first charge amount according to a correspondence relationship between the charge amount and the current through a current base parameter of the electronic device, so that the first capacitance is calculated when the first charge amount and the voltage detected by the

voltage detection device

411 are known. The

processing circuit

400 may further comprise a capacitance detection device dedicated to detecting the capacitance value, thereby enabling a direct detection of the first capacitance.

In this embodiment of the present application, the electronic device may include a

first display screen

120 and a

second display screen

220, where the

first folding portion

100 may include the

first display screen

120, and the

second folding portion

200 may include the

second display screen

220, where the

first display screen

120 and the

second display screen

220 are coplanar when the electronic device is in an unfolded state, so as to form a larger display area; under the condition that the electronic device is in a folded state, the

first folding portion

100 and the

second folding portion

200 are stacked with each other, the

first display screen

120 and the

second display screen

220 are arranged opposite to each other, the

first charging coil

110 and the

second charging coil

210 are located between the

first display screen

120 and the

second display screen

220, and because the

first display screen

120 and the

second display screen

220 both include electrical conductors, interference can be generated under the condition that the

first display screen

120 and the

second display screen

220 are located between the

first charging coil

110 and the

second charging coil

210, and then the

detection sub-circuit

410 can detect the first capacitance of the capacitive device with lower precision. Therefore, in the above scheme, the

first charging coil

110 and the

second charging coil

210 are disposed between the

first display screen

120 and the

second display screen

220, so that interference between the

first display screen

120 and the

second display screen

220 is avoided, and further, the detection accuracy of the first capacitor can be improved.

In an alternative scheme, the electronic device may include a flexible screen, the flexible screen may include a

first display screen

120 and a

second display screen

220, in the process of unfolding the electronic device, the rotation of the

first folding portion

100 and the

second folding portion

200 may drive the flexible screen to be unfolded through deformation, in this case, the

first display screen

120 and the

second display screen

220 together form a whole flexible screen, and a gap is not formed between the

first display screen

120 and the

second display screen

220, so that the aesthetic property and the display performance of the electronic device are better, and because the flexible screen has bending property, when the electronic device is in a folded state, the flexible screen is also in a folded state through bending.

In another alternative, the

first display

120 and the

second display

220 may be disposed at intervals, where the

first display

120 is included in the first folded

portion

100, and the

second display

220 is included in the second folded

portion

200, where the

first display

120 and the

second display

220 are two screens that are independent of each other, so that independent operation can be achieved without interference.

The

first display

120 and the

second display

220 may be rigid structures or flexible structures, which are not limited in this application.

In this embodiment, the

first folding portion

100 may include a

first housing

130, where the

first housing

130 may provide a mounting base for the

first display screen

120 and the

first charging coil

110, specifically, the

first display screen

120 may be disposed on the

first housing

130, and the

first charging coil

110 is disposed in the

first housing

130, so that the

first housing

130 may provide protection for the

first charging coil

110, and an area of the

first housing

130 located opposite to the

first display screen

120 of the

first charging coil

110 includes a first insulation area.

Likewise, the

second folding portion

200 may include a

second housing

230, and the

second housing

230 may provide a mounting base for the

second display

220 and the

second charging coil

210, and in particular, the

second display

220 may be disposed on the

second housing

230, and the

second charging coil

210 may be disposed within the

second housing

230, so that the

second housing

230 may provide protection for the

second charging coil

210, and an area of the

second housing

230 located opposite the

second display

220 from the

second charging coil

210 includes a second insulation area.

Under the condition that the electronic device is in a folded state, the first insulating region and the second insulating region are located between the

first charging coil

110 and the

second charging coil

210, and both the first insulating region and the second insulating region can enable the

first charging coil

110 and the

second charging coil

210 forming the capacitor device to avoid being influenced by the conductive structure, so that the accuracy of detecting the first capacitor by the

detection sub-circuit

410 is ensured, and the accuracy of determining the first opening and closing angle according to the first capacitor is further ensured.

In this embodiment of the present application, the electronic device may include a

first display

120 and a

second display

220, where the

first folding portion

100 includes the

first display

120, and the

second folding portion

200 includes the

second display

220, in order to implement flexible combination of controlling the

first display

120 and the

second display

220, in an alternative solution, the electronic device further includes a

screen control circuit

500, where the

screen control circuit

500 may be connected to the

angle determining sub-circuit

420, so as to implement information transmission, and of course, the

screen control circuit

500 and the

angle determining sub-circuit

420 may implement information transmission by way of wireless communication.

Specifically, when the first opening and closing angle is greater than the first preset value, the

screen control circuit

500 is configured to control at least one of the

first display screen

120 and the

second display screen

220 to be in a bright screen state, and when the user uses the electronic device, the

first display screen

120 and the

second display screen

220 provide a larger visual display effect for the user, so as to improve the experience of the user using the electronic device; in the case that the first opening and closing angle is smaller than the first preset value, the

screen control circuit

500 is configured to control at least one of the

first display screen

120 and the

second display screen

220 to be in a screen-off state, so as to reduce power consumption of at least one of the

first display screen

120 and the

second display screen

220, and further prolong the endurance time of the electronic device.

In this embodiment of the present application, the electronic device includes a

first display

120 and a

second display

220, where the

first folding portion

100 includes the

first display

120, and the

second folding portion

200 includes the

second display

220, in order to control brightness of the

first display

120 and the

second display

220, in an alternative solution, the electronic device may further include a

screen control circuit

500, where the

screen control circuit

500 may be connected to the

angle determining sub-circuit

420, so as to implement information transmission, and of course, the

screen control circuit

500 and the

angle determining sub-circuit

420 may implement information transmission by using a wireless communication manner.

Specifically, the

screen control circuit

500 may be configured to control the brightness of at least one of the

first display screen

120 and the

second display screen

220 to change according to the change of the first opening and closing angle, where the brightness is proportional to the first opening and closing angle, and it is to be noted that the correspondence between the brightness and the opening and closing angle needs to be preset, and a person skilled in the art may adjust the brightness and the opening and closing angle to form a proportional ratio to divide the brightness into intensity and intensity.

In this embodiment, the

first folding portion

100 may include the

first battery

140, the

first battery

140 may be electrically connected with the

first charging coil

110, and likewise, the

second folding portion

200 may include the

second battery

240, and the

second battery

240 may be electrically connected with the

second charging coil

210, so that the electronic device may respectively energize the

first charging coil

110 and the

second charging coil

210, and then, the

first display screen

120 may also be electrically connected with the

first battery

140 through the flexible electrical connection, and the

second display screen

220 may also be electrically connected with the

second battery

240 through the flexible electrical connection, so that the electronic device may respectively energize the

first display screen

120 and the

second display screen

220.

In a further embodiment, as shown in fig. 2, an axis of rotation of one of the first folded

portion

100 and the second folded

portion

200 with respect to the other is a first axis; the

first battery

140 and the

second battery

240 are symmetrically disposed with the first axis as a central axis, the

first charging coil

110 and the

second charging coil

210 are symmetrically disposed with the first axis as a central axis, and when the electronic device is in a folded state, the

first battery

140 is opposite to the

second battery

240, and the

first charging coil

110 is opposite to the

second charging coil

210. The structure can enable the structure and the weight of the whole electronic equipment to be balanced, and the problem of poor carrying experience caused by the fact that the electronic equipment is heavy is avoided.

In this embodiment of the present application, the electronic device may further include a

driving mechanism

300, where the

driving mechanism

300 is a power function device of the folding electronic device, and the

driving mechanism

300 may be used to drive the

first folding portion

100 and the

second folding portion

200 to rotate relatively, so as to avoid a user to manually adjust an opening angle of the

first folding portion

100 and the

second folding portion

200, and further realize that one of the

first folding portion

100 and the

second folding portion

200 rotates automatically relative to the other, so as to improve experience of the user using the electronic device.

In addition, the

driving mechanism

300 may be of various kinds as long as rotation between the first folded

part

100 and the second folded

part

200 rotatably connected to each other is enabled. For example, the

driving mechanism

300 may be an air driving mechanism, a hydraulic driving mechanism, an electromagnetic driving mechanism, or the like. Of course, the folding or unfolding of the electronic device disclosed in the embodiments of the present application may be achieved through manual manipulation by a user.

In an alternative, the

first battery

140 may power the

first charging coil

110 and the

second battery

240 may power the

second charging coil

210. In the case that both the

first charging coil

110 and the

second charging coil

210 are energized, the

first charging coil

110 may serve as a first electromagnetic coil, and the

second charging coil

210 may serve as a second electromagnetic coil, and the first electromagnetic coil and the second electromagnetic coil magnetically repel each other during the unfolding process of the electronic device, so as to assist the manual or above driving

mechanism

300 to drive the

first folding portion

100 and the

second folding portion

200 to relatively rotate, thereby realizing the unfolding. During folding of the electronic device, the first electromagnetic coil magnetically attracts the second electromagnetic coil, thereby assisting the manual or above driving

mechanism

300 to drive the

first folding portion

100 and the

second folding portion

200 to rotate relatively, thereby achieving folding. Obviously, the structure can reduce the energy consumption certainly, and simultaneously, the control of the electronic equipment by a user is also convenient.

The application also discloses an opening and closing angle detection method of an electronic device, wherein the disclosed electronic device comprises a

first folding portion

100 and a

second folding portion

200, specifically, the

first folding portion

100 is rotationally connected with the

second folding portion

200, the

first folding portion

100 comprises a

first charging coil

110, the

second folding portion

200 comprises a

second charging coil

210, and the

first charging coil

110 and the

second charging coil

210 form a capacitor device. The disclosed opening and closing angle detection method comprises the following steps:

in this step, the first capacitance is calculated by the formula c=q/U, where C is the first capacitance, Q is the first charge amount, and U is the voltage between the

first charging coil

110 and the

second charging coil

210. The first capacitance is first determined by the first amount of charge and detecting the voltage between the

first charging coil

110 and the

second charging coil

210.

Step 102, calculating the distance between the

first charging coil

110 and the

second charging coil

210 according to formula (1).

Wherein: c is a first capacitance, k is an electrostatic force constant, S is an overlapping area of the

first charging coil

110 and the

second charging coil

210, ε is a dielectric constant, d is a distance between a center of the

first charging coil

110 and a center of the

second charging coil

210, and pi is a constant;

step 103, calculating an included angle between the

first folding portion

100 and the

second folding portion

200 according to the distance, where the included angle is a first opening and closing angle of the electronic device.

In this step, the distance between the

first charging coil

110 and the

second charging coil

210 is obtained in the previous step, and it should be noted that the distance is the distance between the center of the

first charging coil

110 and the center of the

second charging coil

210, and then, the person skilled in the art pre-stores the distance between the

first charging coil

110 and the folding center of the electronic device and the distance between the

second charging coil

210 and the folding center of the electronic device in advance, and calculates the first opening and closing angle through a trigonometric function.

1. An electronic device comprising a first folding portion, a second folding portion, and processing circuitry, wherein:

the first folding part is rotationally connected with the second folding part, the first folding part comprises a first charging coil, the second folding part comprises a second charging coil, and the first charging coil and the second charging coil form a capacitor device;

the angle at which one of the first folding part and the second folding part rotates relative to the other is the opening and closing angle of the electronic equipment, and the processing circuit is used for detecting the first capacitance of the capacitance device and determining the first opening and closing angle of the electronic equipment according to the first capacitance;

the first charging coil can be used as a first electromagnetic coil, the second charging coil can be used as a second electromagnetic coil, and the first electromagnetic coil and the second electromagnetic coil are magnetically repelled in the process of unfolding the electronic equipment so as to apply auxiliary driving force for driving the first folding part and the second folding part to rotate relatively to unfold; during the folding process of the electronic equipment, the first electromagnetic coil and the second electromagnetic coil are magnetically attracted to apply auxiliary driving force for driving the first folding part and the second folding part to rotate relatively to fold.

2. The electronic device of claim 1, wherein the electronic device comprises a first display and a second display, wherein the first folded portion comprises the first display and the second folded portion comprises the second display, wherein the first display and the second display are disposed opposite one another with the electronic device in a folded state, and wherein the first charging coil and the second charging coil are positioned between the first display and the second display.

3. The electronic device of claim 2, wherein:

the electronic device comprises a flexible screen, wherein the flexible screen comprises the first display screen and the second display screen; or,

the first display screen and the second display screen are arranged at intervals.

4. The electronic device of claim 2, wherein the first folded portion comprises a first housing, the first display screen is disposed on the first housing, the first charging coil is disposed within the first housing, an area of the first housing that is located opposite the first display screen from the first charging coil comprises a first insulating area,

the second folding part comprises a second shell, the second display screen is arranged on the second shell, the second charging coil is arranged in the second shell, the area of the second shell, which is positioned on the second charging coil and is opposite to the second display screen, comprises a second insulation area,

the first insulating region and the second insulating region are located between the first charging coil and the second charging coil when the electronic device is in a folded state.

5. The electronic device of claim 1, further comprising a first display and a second display, wherein the first folded portion comprises the first display and the second folded portion comprises the second display,

the electronic equipment further comprises a screen control circuit, wherein the screen control circuit is used for controlling at least one of the first display screen and the second display screen to be in a bright screen state under the condition that the first opening and closing angle is larger than a first preset value; and under the condition that the first opening and closing angle is smaller than the first preset value, the screen control circuit is used for controlling at least one of the first display screen and the second display screen to be in a screen-off state.

6. The electronic device of claim 1, further comprising a first display and a second display, wherein the first folded portion comprises the first display and the second folded portion comprises the second display,

the electronic device further includes a screen control circuit for controlling a brightness of at least one of the first display screen and the second display screen to vary according to the variation of the first opening and closing angle, the brightness being proportional to the first opening and closing angle.

7. The electronic device of claim 1, wherein the first folded portion comprises a first battery electrically connected to the first charging coil, and the second folded portion comprises a second battery electrically connected to the second charging coil.

8. The electronic device of claim 7, wherein an axis of rotation of one of the first folded portion and the second folded portion relative to the other is a first axis; the first charging coil and the second charging coil are symmetrically arranged by taking the first axis as a central axis, and the first charging coil is opposite to the second charging coil under the condition that the electronic equipment is in a folded state.

9. The electronic device of claim 1, further comprising a drive mechanism for driving the first folding portion and the second folding portion to rotate relative to each other.

10. An opening and closing angle detection method of an electronic device, wherein the electronic device includes a first folding portion and a second folding portion, the first folding portion is rotatably connected with the second folding portion, the first folding portion includes a first charging coil, the second folding portion includes a second charging coil, the first charging coil and the second charging coil form a capacitive device, the opening and closing angle detection method includes:

detecting a first capacitance of the capacitive device;

calculating a distance between the first charging coil and the second charging coil from c=εs/(4πkd), wherein: c is the first capacitance, k is the electrostatic force constant, S is the relative overlapping area of the first charging coil and the second charging coil, epsilon is the dielectric constant, d is the distance between the center of the first charging coil and the center of the second charging coil, and pi is the constant;

calculating an included angle between the first folding part and the second folding part according to the distance, wherein the included angle is a first opening and closing angle of the electronic equipment;

the first charging coil can be used as a first electromagnetic coil, the second charging coil can be used as a second electromagnetic coil, and the first electromagnetic coil and the second electromagnetic coil are magnetically repelled in the process of unfolding the electronic equipment so as to apply auxiliary driving force for driving the first folding part and the second folding part to rotate relatively to unfold; during the folding process of the electronic equipment, the first electromagnetic coil and the second electromagnetic coil are magnetically attracted to apply auxiliary driving force for driving the first folding part and the second folding part to rotate relatively to fold.