Pressing detection device and electronic equipment

Abstract

The embodiment of the utility model provides a pressing detection device and electronic equipment. The pressing detection device comprises a circuit board, a support and a sensor. The bracket comprises an elastic arm and a bracket main body which are integrally arranged, and the bracket main body is fixed on a shell of the electronic equipment; when the pressing detection device receives pressing operation, the circuit board drives the elastic arm to generate elastic deformation, so that the relative distance between the bracket main body and the circuit board is changed; the sensor is used for generating a pressing signal when the relative distance between the bracket main body and the circuit board is changed; and the circuit board is used for transmitting the pressing signal to the control unit and enabling the control unit to identify the pressing operation according to the pressing signal. According to the press detection device provided by the embodiment of the invention, global press detection can be carried out, a user can carry out press operation at any position, and the use experience of the user can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electrical engineering, and in particular, to a pressing detection device and an electronic device. Background Art

[0002] The touchpad is a flat plate arranged on the C shell of a notebook computer. The touchpad on the notebook computer can recognize touch commands and pressing commands. When the user's finger slides on the touch area of the touchpad, the cursor in the notebook computer can be moved. When the user's finger presses on the touchpad, the touchpad can recognize the pressing command to enable the notebook computer to perform corresponding operations.

[0003] The existing touchpads use a mechanical pressing structure in a semi-domain pressing form or a separate button form to recognize pressing commands.

[0004] However, the separate button form will occupy the area of the touch area of the touchpad, reducing the area of the touch area. And the semi-domain pressing form requires pressing at a specific position to recognize the pressing command. Therefore, the user experience of the existing touchpads is poor. Utility Model Content

[0005] In view of this, the embodiments of the present application provide a pressing detection device and an electronic device to at least partially solve the above problems.

[0006] According to the first aspect of the embodiments of the present application, a pressing detection device is provided, which is applied to an electronic device and includes: a circuit board, a bracket, and a sensor; the bracket includes an elastic arm and a bracket main body integrally arranged, and the bracket main body is fixed on the shell of the electronic device; when the pressing detection device receives a pressing operation, the circuit board drives the elastic arm to generate elastic deformation, so that the relative distance between the bracket main body and the circuit board changes; the sensor is used to generate a pressing signal when the relative distance between the bracket main body and the circuit board changes; the circuit board is used to transmit the pressing signal to the control unit and enable the control unit to recognize the pressing operation according to the pressing signal.

[0007] According to the second aspect of the embodiments of the present application, an electronic device is provided, which includes a shell and the pressing detection device described in the first aspect of the embodiments of the present application; the bracket main body in the pressing detection device is fixed on the shell.

[0008] According to the pressing detection device provided by the embodiments of the present application, the pressing detection device includes: a circuit board, a bracket, and a sensor. When the pressing detection device receives a pressing operation, the circuit board drives the elastic arm to generate elastic deformation, causing a change in the relative distance between the circuit board and the bracket body. The sensor can generate a pressing signal when the relative distance between the circuit board and the bracket body changes. Thus, the pressing signal can be transmitted to the control unit through the circuit board to realize the recognition of the user's pressing operation. Since there is no physical button, compared with the touchpad in the form of a single button in the prior art, the area of the touch area is larger. Since the pressing position is not limited, a pressing signal can be generated when the pressing detection device receives a pressing operation. Therefore, compared with the touchpad in the form of semi-region pressing in the prior art, the user can press anywhere without having to press at a specific position, improving the user experience. And since the sensor generates a pressing signal according to the change in the relative distance between the circuit board and the bracket body, compared with the solution of pressure detection through a strain gauge in the prior art, since the sensor does not need to generate deformation, the service life of the sensor is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0010] Figure 1 is a schematic diagram of a touchpad in the form of a single button provided by the embodiments of the present application;

[0011] Figure 2 is a schematic diagram of a pressing detection device provided by the embodiments of the present application;

[0012] Figure 3 is a schematic diagram of the usage scenario of a pressing detection device provided by the embodiments of the present application;

[0013] Figure 4 is a schematic diagram of a bracket structure provided by the embodiments of the present application;

[0014] Figure 5 is a schematic diagram of another bracket structure provided by the embodiments of the present application;

[0015] Figure 6 is an exploded view of a pressing detection device provided by the embodiments of the present application;

[0016] Figure 7 is a schematic diagram of another pressing detection device provided by the embodiments of the present application;

[0017] Figure 8 is a top view of a pressing detection device including an induction coil provided by an embodiment of the present application;

[0018] Figure 9 is a schematic diagram of another pressing detection device provided by an embodiment of the present application;

[0019] Figure 10 is a schematic diagram of the positional relationship between a bracket and a circuit board provided by an embodiment of the present application;

[0020] Figure 11 is a schematic diagram of another bracket structure provided by an embodiment of the present application;

[0021] Figure 12 is a cross-sectional view of an electronic device provided by an embodiment of the present application. Detailed implementation manners

[0022] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present application, the following will clearly and detailedly describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the embodiments of the present application.

[0023] As described above, the touchpad is a flat plate disposed on the C shell of the notebook computer. The touchpad on the notebook computer can recognize touch commands and pressing commands. When the user's finger slides on the touch area of the touchpad, the cursor in the notebook computer can be moved. When the user's finger presses on the touchpad, the touchpad can recognize the pressing command to enable the notebook computer to execute the corresponding operation. The existing touchpads use a mechanical pressing structure in a semi-domain pressing form or a separate button form to recognize the pressing command. For example: Figure 1 is a schematic diagram of a touchpad in a separate button form provided by an embodiment of the present application. As Figure 1 shown, the touchpad in the separate button form includes two buttons. The user inputs the pressing command through the two buttons. Specifically, the left button 102 can simulate the left button of the mouse, and the right button 103 can simulate the right button of the mouse. However, the separate button form will occupy a part of the area of the touch area 101 of the touchpad, reducing the area of the touch area 101, and the semi-domain pressing form requires pressing at a specific position to recognize the pressing command. For example: the semi-domain pressing form requires pressing at the lower left corner to simulate the left button of the mouse, and pressing at the lower right corner to simulate the right button of the mouse. Therefore, the user experience of the existing touchpads is poor.

[0024] In an embodiment of the present application, a pressing detection device is provided. The pressing detection device includes: a circuit board, a bracket, and a sensor. When the pressing detection device receives a pressing operation, the circuit board drives the elastic arm to generate elastic deformation, changing the relative distance between the circuit board and the bracket body. The sensor can generate a pressing signal when the relative distance between the circuit board and the bracket body changes. Thus, the pressing signal can be transmitted to the control unit through the circuit board to identify the user's pressing operation. Since no physical button is provided, compared with the touchpad in the form of a single button in the prior art, the area of the touch area is larger. Since the pressing position is not limited, a pressing signal can be generated when the pressing detection device receives a pressing operation. Therefore, compared with the touchpad in the form of semi-region pressing in the prior art, the user can press anywhere without having to press at a specific position, improving the user experience. And since the sensor generates a pressing signal according to the change in the relative distance between the circuit board and the bracket body, compared with the solution of pressure detection using a strain gauge in the prior art, since the sensor does not need to generate deformation, the service life of the sensor is longer.

[0025] The following describes the pressing detection device provided by the present application through embodiments.

[0026] Figure 2 FIG. is a schematic diagram of a pressing detection device provided by an embodiment of the present application. The pressing detection device is applied to an electronic device, such as Figure 2 As shown, the pressing detection device includes: a circuit board 202, a bracket, and a sensor 204. The bracket includes an integrally provided elastic arm 2032 and a bracket body 2031. The bracket body 2031 is fixed to the housing 301 of the electronic device. When the pressing detection device receives a pressing operation, the circuit board 202 drives the elastic arm 2032 to generate elastic deformation, changing the relative distance between the bracket body 2031 and the circuit board 202. The sensor 204 can generate a pressing signal when the relative distance between the bracket body 2031 and the circuit board 202 changes. The circuit board 202 can transmit the pressing signal to the control unit and enable the control unit to identify the pressing operation according to the pressing signal.

[0027] The bracket includes an integrally provided elastic arm 2032 and a bracket body 2031. The bracket body 2031 is fixed to the housing 301 of the electronic device. In one example, the bracket can be made of a metal material, including but not limited to stainless steel, aluminum alloy, magnesium alloy, etc. The bracket body 2031 and the elastic arm 2032 can be obtained by stamping a metal material plate. In another example, the bracket can be a plastic material or a plastic bracket. The bracket body 2031 can be fixed to the housing 301 of the electronic device by means of bolts, snap connections, etc. The specific fixing method is not limited herein.

[0028] When the pressing detection device receives a pressing operation, for example, when a user's finger presses, the circuit board 202 displaces in the direction of the pressure, causing the circuit board 202 to drive the elastic arm 2032 to elastically deform in the direction of the pressure. At this time, since the bracket main body 2031 is fixed on the housing 301 of the electronic device, the bracket main body 2031 does not move, and the circuit board 202 displaces relative to the bracket main body 2031, and the relative distance between the circuit board 202 and the bracket main body 2031 changes, and the sensor 204 generates a pressing signal. After the circuit board 202 receives the pressing signal sent by the sensor 204, it transmits the pressing signal to the control unit. The control unit can identify the pressing signal and execute the pressing operation according to the pressing signal. In one example, the control unit can be a pressing detection chip provided on the circuit board 202, a touch control chip provided on the circuit board 202, or a processor of the electronic device, etc.

[0029] The sensor 204 can include at least one sensor 204. When there is one sensor 204, the sensor 204 can be arranged in the middle part of the circuit board 202. When there are multiple sensors 204, the sensors 204 can be evenly distributed around the circuit board 202. The specific number of the sensors 204 is not limited herein. In one example, 4 sensors 204 can be distributed at the four corner positions of the circuit board 202.

[0030] In the embodiment of the present application, the pressing detection device includes: a circuit board 202, a bracket, and a sensor 204. When the pressing detection device receives a pressing operation, the circuit board 202 drives the elastic arm 2032 to elastically deform, causing the relative distance between the circuit board 202 and the bracket main body 2031 to change. The sensor 204 can generate a pressing signal when the relative distance between the circuit board 202 and the bracket main body 2031 changes. Thus, the pressing signal can be transmitted to the control unit through the circuit board 202 to realize the recognition of the user's pressing operation. Since no physical button is provided, compared with the touchpad in the form of a single button in the prior art, the area of the touch area is larger. Since the pressing position is not limited, a pressing signal can be generated when the pressing detection device receives a pressing operation. Therefore, compared with the touchpad in the form of semi-region pressing in the prior art, the user can press anywhere without pressing at a specific position, improving the user experience. And since the sensor 204 generates a pressing signal according to the change in the relative distance between the circuit board 202 and the bracket main body 2031, compared with the solution of pressure detection through a strain gauge in the prior art, since the sensor 204 does not need to generate deformation, the service life of the sensor 204 is higher.

[0031] In a possible implementation, the first end of the elastic arm 2032 is connected to the bracket body 2031, the second end of the elastic arm 2032 is suspended, the circuit board 202 is bonded to the elastic arm 2032, and when the pressing detection device receives a pressing operation, the circuit board 202 drives the elastic arm 2032 to move relative to the bracket body 2031, causing the elastic arm 2032 to undergo elastic deformation.

[0032] As Figure 2 shown, the first end of the elastic arm 2032 is connected to the bracket body 2031, the second end of the elastic arm 2032 is suspended, and the elastic arm 2032 is bonded to the circuit board 202. In one example, the elastic arm 2032 can be bonded to the circuit board 202 through a silicone pad 402. Specifically, glue can be applied to the upper and lower surfaces of the silicone pad 402, and then the upper and lower surfaces of the silicone pad 402 are respectively bonded to the circuit board 202 and the elastic arm 2032.

[0033] Figure 3 is a schematic diagram of the usage scenario of a pressing detection device provided by an embodiment of the present application. As Figure 3 shown, when the finger 500 presses the pressing detection device, the circuit board 202 moves in the direction of the pressure. The circuit board 202 drives the elastic arm 2032 to move relative to the bracket body 2031. For example: Figure 3 the elastic arm 2032 in Figure 3 moves downward relative to the bracket body 2031, causing the distance between the circuit board 202 and the bracket body 2031 to change. For example:

[0034] in

[0035] the distance between the circuit board 202 and the bracket body 2031 becomes smaller, and the sensor 204 generates a pressing signal. It should be understood that one end of the elastic arm 2032 is connected to the bracket body 2031 and the second end is suspended. Therefore, the second end undergoes elastic deformation under the drive of the circuit board 202.

[0034] Since the elastic arm 2032 undergoes elastic deformation, when the pressing detection device stops being pressed, the elastic arm 2032 can rebound to drive the circuit board 202 and the bracket body 2031 to generate relative movement, so that the relative distance between the bracket body 2031 and the circuit board 202 returns to the state before the pressing detection device was pressed, and the sensor 204 stops generating a pressing signal.

[0035] In the embodiment of the present application, the first end of the elastic arm 2032 is connected to the bracket body 2031, and the second end of the elastic arm 2032 is suspended, thereby realizing the connection between the elastic arm 2032 and the bracket body 2031. Since the elastic arm 2032 is bonded to the circuit board 202 and the bracket body 2031 is fixed on the housing 301 of the electronic device, when the pressing detection device receives a pressing operation, the circuit board 202 drives the elastic arm 2032 to move relative to the bracket body 2031, causing the elastic arm 2032 to undergo elastic deformation, and the relative distance between the circuit board 202 and the bracket body 2031 changes. As a result, the sensor 204 can generate a pressing signal, realizing the generation of the pressing signal.

[0036] Figure 4 is a schematic diagram of a bracket structure provided by an embodiment of the present application, as Figure 4 shown, a first through hole 2033 is provided on the bracket body 2031, the first end of the elastic arm 2032 is connected to the bracket body 2031, and the elastic arm 2032 extends into the first through hole 2033.

[0037] The first end of the elastic arm 2032 is connected to the bracket body 2031. For example, in the solution shown as Figure 4 shown, the first end of the elastic arm 2032 can be connected to the inner edge of the first through hole 2033 provided on the bracket body 2031, so that the first end of the elastic arm 2032 is connected to the bracket body 2031, and the second end of the elastic arm 2032 extends into the first through hole 2033 to form the elastic arm 2032. In one example, the bracket body 2031 and the elastic arm 2032 extending into the first through hole 2033 can be obtained by stamping and removing the parts other than the elastic arm 2032 on a metal plate.

[0038] It should be understood that Figure 4 shows a solution in which 4 elastic arms 2032 are distributed at the four corners of the bracket body 2031. In one example, the number of elastic arms 2032 can be more than 4, and multiple elastic arms 2032 can be evenly distributed on the bracket body 2031. The specific number of elastic arms 2032 can be set as required and is not limited herein.

[0039] In the embodiment of the present application, a first through hole 2033 is provided on the bracket main body 2031. The first end of the elastic arm 2032 is connected to the bracket main body 2031, and the elastic arm 2032 extends into the first through hole 2033, whereby the elastic arm 2032 can be formed on the bracket main body 2031. Since the elastic arm 2032 is disposed in the first through hole 2033 on the bracket main body 2031, the elastic arm 2032 extends outward relative to the bracket main body 2031. Due to the existence of the first through hole 2033, the weight of the bracket main body 2031 can be reduced, thereby reducing the overall weight of the pressing detection device, so that the pressing detection device can be applied to electronic devices with high requirements for thinness and lightness.

[0040] In a possible implementation manner, a plurality of elastic arms 2032 extend into the same first through hole 2033, or a plurality of first through holes 2033 are provided on the bracket main body 2031, and one elastic arm 2032 extends into each first through hole 2033.

[0041] As Figure 4 shown, Figure 4 shows a solution in which a plurality of elastic arms 2032 extend into the first through hole 2033. Figure 5 FIG. Figure 5 shows a schematic diagram of another bracket structure provided by the embodiment of the present application. As Figure 5 shown,

[0042] It should be understood that Figure 5 this is only an example. Specifically, the area of the first through hole 2033 can be set as required. For example, in order to reduce the overall weight of the bracket, the area of the first through hole 2033 can be larger, or in order to increase the strength of the bracket, the first through hole 2033 can be set smaller, etc. The specific area of the first through hole 2033 is not limited herein.

[0043] It should be noted that since the elastic arm 2032 needs to generate elastic deformation, as Figure 4 and Figure 5 shown, only the first end of the elastic arm 2032 is connected to the bracket main body 2031, and the second end is suspended, that is, the structure of the elastic arm 2032 except the first end is not connected to the bracket main body 2031. At this time, the part where the first end is connected to the bracket main body 2031 serves as the fulcrum for the bracket to generate elastic deformation.

[0044] In an embodiment of the present application, multiple elastic arms 2032 extend into the same first through hole 2033, or multiple first through holes 2033 are provided on the bracket main body 2031, and one elastic arm 2032 extends into each first through hole 2033. Thus, it can be applicable to sensors 204 with different requirements for the bracket structure, and can also be applicable to different usage scenarios (for scenarios with higher requirements for bracket strength, the bracket solution with multiple first through holes 2033 and one elastic arm 2032 extending into each first through hole 2033 can be used; for scenarios with higher requirements for thinness and lightness, the bracket solution with multiple elastic arms 2032 extending into the same first through hole 2033 can be used). Therefore, the applicability of the pressing detection device is relatively high.

[0045] In a possible implementation manner, the elastic arm 2032 includes a deformation part parallel to the bracket main body 2031, and a bending part connecting the deformation part and the bracket main body 2031, and the included angle between the bending part and the bracket main body 2031 is greater than zero degrees.

[0046] The deformation part and the bending part of the elastic arm 2032 are of an integral structure, and the deformation part can be connected to the bracket main body 2041 through the bending part. It should be understood that when the included angle between the bending part and the bracket main body 2031 is equal to 0 degrees, at this time, the whole elastic arm 2032 is parallel to the bracket main body 2031, that is, it is equivalent to not bending the elastic arm 2032. Therefore, the included angle between the bending part and the bracket main body 2031 needs to be greater than 0 degrees. In one example, the bending part of the elastic arm 2032 can be obtained by stamping and then bending the bracket main body 2031.

[0047] In an embodiment of the present application, the elastic arm 2032 includes a deformation part parallel to the bracket main body 2031, and a bending part connecting the deformation part and the bracket main body 2031. Thus, when the pressing detection device receives a pressing operation, the deformation part generates elastic deformation with the bending part as the fulcrum. Since the elastic arm 2032 is provided with a deformation part and a bending part, compared with the bracket structure solution that only includes a deformation part, the force required for the user to press the pressing detection device to make the deformation part generate elastic deformation is smaller. Therefore, the user experience can be improved.

[0048] In a possible implementation manner, as Figure 2 shown, the sensor 204 includes an upper electrode 2041 and a lower electrode 2042. The upper electrode 2041 is bonded to the circuit board 202, or the upper electrode 2041 is disposed within the circuit board 202. The lower electrode 2042 is disposed on the bracket main body 2031, and the upper electrode 2041 and the lower electrode 2042 are disposed opposite to each other in a direction perpendicular to the circuit board 202. When the relative distance between the bracket main body 2031 and the circuit board 202 changes, the relative distance between the upper electrode 2041 and the lower electrode 2042 changes, causing the capacitance of the sensor 204 to change and generating a pressing signal.

[0049] The sensor 204 includes an upper electrode 2041 and a lower electrode 2042. The upper electrode 2041 can be integrated within the circuit board 202 or bonded to one side of the circuit board 202 close to the bracket. The lower electrode 2042 is disposed on the bracket body 2031. Both the upper electrode 2041 and the lower electrode 2042 are metal electrodes, and both the upper electrode 2041 and the lower electrode 2042 are electrically connected to the circuit board 202. In one example, the surface of the upper electrode 2041 can be coated with an insulating layer to prevent the upper electrode 2041 from contacting the lower electrode 2042. The upper electrode 2041 and the lower electrode 2042 are oppositely disposed in a direction perpendicular to the circuit board 202, that is, in a direction perpendicular to the circuit board 202, the projection of the lower electrode 2042 on the circuit board 202 intersects with the projection of the upper electrode 2041 on the circuit board 202.

[0050] When the relative distance between the circuit board 202 and the bracket body 2031 changes, the relative distance between the upper electrode 2041 disposed on the circuit board 202 and the lower electrode 2042 disposed on the bracket body 2031 changes. At this time, the capacitance between the upper electrode 2041 and the lower electrode 2042 changes, that is, the capacitance of the sensor 204 changes, and the sensor 204 generates a pressing signal. For example: Since the capacitance between the upper electrode 2041 and the lower electrode 2042 changes, the level signal output by the sensor 204 to the circuit board 202 changes.

[0051] Optionally, when the pressing detection device receives a pressing operation, the relative distance between the upper electrode 2041 and the lower electrode 2042 changes, causing the capacitance of the sensor 204 to change, thereby causing the sensor 204 to generate a pressing signal. When the amount of change in the relative distance between the upper electrode 2041 and the lower electrode 2042 is different, the amount of change in the capacitance of the sensor 204 is different, and the signal intensity of the generated pressing signal is different (for example: when the pressing signal is a current signal, the amount of change in current is different, and when the pressing signal is a voltage signal, the amount of change in voltage is different). And when the pressing force of the pressing operation is large, the relative distance between the upper electrode 2041 and the lower electrode 2042 changes greatly. Therefore, the amount of change in the relative distance between the upper electrode 2041 and the lower electrode 2042 can be determined according to the signal intensity of the pressing signal, and thus the pressing force of the pressing operation received by the pressing detection device can be determined. For example: when the intensity of the pressing signal is large, the pressing force is large, and when the intensity of the pressing signal is small, the pressing force is small. Thus, the pressing operation can be subjected to pressure detection to determine the magnitude of the pressing force of the pressing operation.

[0052] It should be noted that one of the upper electrode 2041 and the lower electrode 2042 serves as a driving electrode to receive a driving signal generated by a control unit on the circuit board 202. The control unit can be a touch chip, a pressing detection chip, etc. The other of the upper electrode 2041 and the lower electrode 2042 serves as a receiving electrode and outputs a pressing signal to the control unit on the circuit board, thereby realizing pressing detection.

[0053] In the embodiment of the present application, the sensor 204 includes an upper electrode 2041 and a lower electrode 2042. The upper electrode 2041 is bonded to the circuit board 202, or the upper electrode 2041 is disposed within the circuit board 202, and the lower electrode 2042 is disposed on the bracket main body 2031. Thus, when the relative distance between the circuit board 202 and the bracket main body 2031 changes, the relative distance between the upper electrode 2041 and the lower electrode 2042 changes, causing the capacitance between the first electrode and the second electrode to change, generating a pressing signal, and realizing the generation of the pressing signal. Since the sensor 204 generates a pressing signal according to the change in the relative distance between the electrodes, compared with the strain gauge pressing detection scheme in the prior art, since the sensor 204 does not need to generate deformation, the service life of the sensor 204 is relatively high, and compared with the strain gauge pressing detection scheme, the capacitance pressing detection scheme has higher sensitivity. Therefore, the pressing detection device has higher sensitivity to pressing detection.

[0054] In a possible implementation manner, when a plurality of elastic arms 2032 extend into the same first through hole 2033, a plurality of supporting portions 2034 are connected to the bracket main body 2031. The supporting portions 2034 extend into the first through hole 2033, and the lower electrode 2042 is disposed on the supporting portions 2034.

[0055] As Figure 4 shown, a plurality of supporting portions 2034 can be connected to the bracket main body 2031. The portion of the bracket main body 2031 other than the supporting portions 2034 and the elastic arms 2032 can be a hollow structure, forming a first through hole 2033. One end of the supporting portion 2034 is connected to the bracket main body 2031, and the other end of the supporting portion 2034 extends into the first through hole 2033, and the other end of the supporting portion 2034 is suspended. In one example, the supporting portion 2034 can be bent in the same direction as the bending direction of the elastic arm 2032. Thus, there can be a relatively large gap between the first electrode disposed on the circuit board 202 and the second electrode disposed on the supporting portion 2034.

[0056] It should be understood that Figure 4The solution showing four elastic arms 2032 and four supporting parts 2034 is illustrated. In one example, the bracket body 2031 may include a plurality of elastic arms 2032 and a plurality of supporting parts 2034. It should be understood that the supporting parts 2034 are used to support the lower electrode 2042. Therefore, the number of the supporting parts 2034 may be consistent with the number of the sensors 204. In another example, since the elastic part generates elastic deformation, the relative distance change between the circuit board 202 and the bracket body 2031 is greater at the position closer to the elastic arm 2032. Therefore, the supporting parts 2034 may be arranged close to the elastic arms 2032, and the number of the supporting parts 2034 may be greater than or equal to the number of the elastic arms 2032.

[0057] In the embodiment of the present application, when a plurality of elastic arms 2032 extend into the same first through hole 2033, a plurality of supporting parts 2034 are connected to the bracket body 2031, and the lower electrode 2042 is arranged on the supporting parts 2034. Thus, the area of the first through hole 2033 can be set larger, the overall weight of the bracket can be reduced, the weight of the pressing detection device can be reduced, and thus the weight of the electronic device can be reduced, which can be applicable to electronic devices with requirements for thinness and lightness.

[0058] In a possible implementation manner, the areas and shapes of the upper electrode 2041 and the lower electrode 2042 are the same, and in the direction perpendicular to the circuit board 202, the projection of the lower electrode 2042 on the circuit board 202 coincides with the upper electrode 2041.

[0059] The areas and shapes of the upper electrode 2041 and the lower electrode 2042 may be the same. The shapes of the upper electrode 2041 and the lower electrode 2042 include but are not limited to square, circular, triangular, or polygonal, etc. The central connection line of the upper electrode 2041 and the lower electrode 2042 is perpendicular to the circuit board 202, that is, in the direction perpendicular to the circuit board 202, the projection of the lower electrode 2042 on the circuit board 202 coincides with the projection of the upper electrode 2041 on the circuit board 202.

[0060] In the embodiment of the present application, the areas and shapes of the upper electrode 2041 and the lower electrode 2042 are the same, and in the direction perpendicular to the circuit board 202, the projection of the lower electrode 2042 on the circuit board 202 coincides with the upper electrode 2041. Thus, the first electrode and the second electrode can be relatively arranged in the direction perpendicular to the circuit board 202, and the same shape and size of the first electrode and the second electrode can generate a larger signal amount while saving electrode materials and reducing costs.

[0061] In a possible implementation manner, the area of the upper electrode 2041 is greater than or equal to 20 square millimeters.

[0062] In the embodiment of the present application, the area of the upper electrode 2041 is greater than or equal to 20 square millimeters, thereby ensuring a relatively large signal amount of the pressing signal generated by the sensor 204, preventing the signal amount generated by the sensor 204 from being small due to the small areas of the upper electrode 2041 and the lower electrode 2042, and avoiding missed detection of the user's pressing operation, which can improve the sensitivity of pressing detection.

[0063] In a possible implementation manner, in the direction perpendicular to the circuit board 202, when the pressing detection device does not receive a pressing operation, the distance range between the upper electrode 2041 and the lower electrode 2042 is [0.3 mm, 1.0 mm].

[0064] In the embodiment of the present application, the gap range between the upper electrode 2041 and the lower electrode 2042 is [0.3 mm, 1.0 mm]. Thereby, when the relative position between the circuit board 202 and the bracket main body 2031 changes, while the sensor 204 normally generates a pressing signal, due to the large gap between the upper electrode 2041 and the lower electrode 2042, when the relative distance between the upper electrode 2041 and the lower electrode 2042 changes, it can prevent the upper electrode 2041 and the lower electrode 2042 from contacting, enabling the sensor 204 to work properly.

[0065] In a possible implementation manner, the lower electrode 2042 is electrically connected to the circuit board 202 through a flexible circuit board 205.

[0066] Figure 6 is an exploded view of a pressing detection device provided by an embodiment of the present application. As Figure 6 shown, the elastic arm 2032 is bonded to the circuit board 202 through a silicone pad 402. The upper electrode 2041 is integrated on the circuit board 202. The lower electrode 2042 is disposed on the support portion 2034. The lower electrode 2042 is electrically connected to the circuit board 202 through a flexible circuit board 205. It should be noted that Figure 6 only the scheme in which the upper electrode 2041 is integrated on the circuit board 202 is shown. The upper electrode 2041 can also be bonded to the circuit board 202, which will not be elaborated here.

[0067] In the embodiment of the present application, the lower electrode 2042 is electrically connected to the circuit board 202 through the flexible circuit board 205, realizing the electrical connection between the lower electrode 2042 and the circuit board 202 and energizing the lower electrode 2042. Thereby, when the relative distance between the upper electrode 2041 and the lower electrode 2042 changes, the capacitance between the upper electrode 2041 and the lower electrode 2042 can change, generating a pressing signal.

[0068] Figure 7 is a schematic diagram of another pressing detection device provided by an embodiment of the present application. As Figure 7As shown, the sensor 204 includes an induction coil 206. The induction coil 206 is disposed on one side of the circuit board 202 opposite to the bracket body 2031. The induction coil 206 is electrically connected to the circuit board 202. The circuit board 202 can transmit a driving signal to the induction coil 206. The induction coil 206 can receive the driving signal and generate a pressing signal when the distance between the induction coil 206 and the bracket body 2031 changes.

[0069] When no pressing is performed, the relative position between the induction coil 206 and the bracket body 2031 does not change. When the pressing detection device receives a pressing operation, the circuit board 202 drives the elastic arm 2032 to undergo elastic deformation. At this time, the relative distance between the circuit board 202 and the bracket body 2031 changes, that is, the relative position between the induction coil 206 disposed on the circuit board 202 and the bracket body 2031 changes. Since the circuit board 202 continuously outputs a driving signal to the induction coil 206, the induction coil 206 is in an energized state. When the relative position between the induction coil 206 and the bracket body 2031 changes, the bracket body 2031 cuts the magnetic induction lines of the magnetic field generated by the induction coil 206, causing the inductance of the induction coil 206 to change and generating a pressing signal.

[0070] It should be noted that since this solution uses the change in the distance between the bracket body 2031 and the induction coil 206 to cause the inductance of the induction coil 206 to change and generate a pressing signal, the material of the bracket is preferably a metal material with low resistivity, that is, high conductivity, because a material with low resistivity can reduce the loss of eddy current between the coil and the bracket. The bracket material is preferably a metal material such as copper, aluminum, aluminum alloy, nickel, or stainless steel. In one example, the bracket can be made of a non-metallic material, but a sheet, film, or coating of a metal material with low resistivity needs to be attached to the surface of the bracket opposite to the induction coil 206. The resistivity of the metal material is preferably ≤0.8 uΩ·m.

[0071] Optionally, when the pressing detection device receives a pressing operation, the relative distance between the induction coil 206 and the bracket main body 2041 changes, causing a change in the inductance of the induction coil 206 and generating a pressing signal. When the amount of change in the relative distance between the induction coil 206 and the bracket main body 2041 is different, the amount of change in the inductance of the induction coil 206 is different, and the signal intensity of the generated pressing signal is different (for example: when the pressing signal is a current signal, the amount of change in current is different; when the pressing signal is a voltage signal, the amount of change in voltage is different). Moreover, when the pressing force of the pressing operation is relatively large, the relative distance between the induction coil 206 and the bracket main body 2041 changes significantly. Therefore, the amount of change in the relative distance between the induction coil 206 and the bracket main body 2041 can be determined according to the signal intensity of the pressing signal, and thus the pressing force of the pressing operation received by the pressing detection device can be determined. For example: when the intensity of the pressing signal is relatively large, the pressing force is relatively large; when the intensity of the pressing signal is relatively small, the pressing force is relatively small. Thus, the pressing operation can be subjected to pressure detection to determine the magnitude of the pressing force of the pressing operation.

[0072] In an embodiment of the present application, the sensor 204 includes an induction coil 206. When the relative position between the induction coil 206 and the bracket main body 2031 changes, the bracket main body 2031 cuts the magnetic induction lines of the magnetic field generated by the induction coil 206, causing a change in the inductance of the induction coil 206 to generate a pressing signal. Thus, pressing detection can be achieved. Since the pressing signal is generated by the change in the inductance of the induction coil 206, there is no need to provide a lower electrode 2042 on the bracket main body 2031, which can prevent the inability to perform pressing detection due to the detachment of the lower electrode 2042 from the bracket main body 2031, improving the reliability of the pressing detection device.

[0073] Figure 8 is a top view of a pressing detection device including an induction coil provided in an embodiment of the present application. When only one sensor 204 is included, that is, only one induction coil 206 is included, the coil can be disposed at the center position of the circuit board 202, and as Figure 8 shown, when multiple sensors 204 are included, that is, multiple induction coils 206 are included, in the direction parallel to the circuit board 202, the multiple induction coils 206 are disposed close to the first through hole 2033, wherein different induction coils 206 are close to different first through holes 2033.

[0074] As Figure 8As shown, when the bracket includes four elastic arms 2032, four induction coils 206 are arranged close to the first through hole 2033. Since the elastic arms 2032 are arranged in the first through hole 2033, the four induction coils 206 are arranged close to the four elastic arms 2032. Different induction coils 206 are arranged close to different first through holes 2033. In one example, the four induction coils 206 can be arranged at the four corners of the bracket. When the elastic arms 2032 undergo elastic deformation, due to the large change in the relative distance between the position close to the elastic arms 2032 and the bracket body 2031, arranging the four induction coils 206 close to the first through hole 2033 can make the relative distance between the induction coil 206 and the bracket change significantly when the elastic arms 2032 deform. Thus, the displacement of the bracket relative to the induction coil 206 can be large. Since the change in the distance between the induction coil 206 and the bracket causes a change in the inductance of the induction coil 206 to generate a pressing signal, when the displacement is large, the signal amount of the generated pressing signal is large. Therefore, the pressing detection can be made more sensitive.

[0075] It should be understood that Figure 8 Only as an example, the specific number of the multiple induction coils 206 can be set as required. For example, if there are eight elastic arms 2032, eight induction coils 206 can be set. Preferably, the number of the induction coils 206 can be the same as the number of the elastic arms 2032. Thus, when each elastic arm 2032 undergoes elastic deformation, a pressing signal with a large signal amount can be generated through the induction coil 206.

[0076] In one example, the induction coil 206 can adopt a dual-coil design. The induction coil 206 can also adopt a dual-coil design. For example, each induction coil 206 is formed by a double-turn coil. The multiple induction coils 206 can be arranged close to the first through hole 2033. The specific structure of the induction coil 206 is not limited in the embodiments of the present application.

[0077] In the embodiments of the present application, the sensor 204 includes the induction coil 206. In the direction parallel to the circuit board 202, the multiple induction coils 206 are arranged close to the first through hole 2033. Thus, when the elastic arms 2032 undergo elastic deformation, the displacement of the bracket relative to the induction coil 206 is large. Since the pressing signal is generated by the change in the inductance in the induction coil 206, when the displacement is large, the signal amount of the generated pressing signal is large. Therefore, the pressing detection can be made more sensitive. The user can perform the pressing operation with a smaller force. And since the multiple induction coils 206 are arranged close to the first through hole 2033, the user can perform the pressing operation at any position without performing the pressing operation at a specific position, improving the user experience.

[0078] Figure 9 is a schematic diagram of another pressing detection device provided by the embodiments of the present application, asFigure 7 and Figure 9 As shown in Figure 9 , the induction coil 206 can be disposed within the circuit board 202, or the induction coil 206 can be bonded to the circuit board 202.

[0079] Figure 9 An example in which the induction coil 206 is bonded to one side of the circuit board 202 close to the bracket is shown in Figure 9 . Figure 7 An example in which the coil is disposed within the circuit board 202 (integrated within the circuit board 202) is shown.

[0080] In the embodiment of the present application, the induction coil 206 is bonded to one side of the circuit board 202 close to the bracket, whereby the position of the induction coil 206 can be opposite to the bracket body 2031, or the induction coil 206 can be integrated within the circuit board 202, whereby an additional induction coil 206 does not need to be bonded, the thickness of the pressing detection device can be reduced, and since the induction coil 206 is integrated on the circuit board 202, the induction coil 206 can be prevented from detaching from the circuit board 202, improving the reliability of the pressing detection device.

[0081] In a possible implementation manner, as Figure 2 , Figure 3 , Figure 7 and Figure 9 shown in Figure 9 , the pressing detection device further includes a cover plate 201. The cover plate 201 can provide a pressing surface. The circuit board 202 is disposed between the cover plate 201 and the bracket. The cover plate 201 can provide a pressing surface. When the cover plate 201 is pressed, the pressing detection device receives a pressing operation.

[0082] The cover plate 201 provides a pressing surface. In one example, the cover plate 201 can be a cover plate 201 made of glass material. The circuit board 202 is disposed between the cover plate 201 and the bracket. When the cover plate 201 is pressed, for example, when a user presses the cover plate 201, the pressing detection device receives a pressing operation. The cover plate 201 drives the circuit board 202 to move in the direction of the pressure. The circuit board 202 drives the elastic arm 2031 to elastically deform, causing relative movement between the circuit board 202 and the bracket body 2031. At this time, since the bracket body 2031 is fixed to the housing 301 of the electronic device, the circuit board 202 generates a displacement relative to the bracket body 2031, changing the relative distance between the circuit board 202 and the bracket body 2031, causing the sensor to generate a pressing signal, whereby the pressing operation of the user can be recognized. In one example, as Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 9 shown in Figure 9 , the cover plate 201 can be bonded to the circuit board 202 through a first adhesive layer 401.

[0083] Optionally, the circuit board 202 can be a circuit board 202 with touch recognition function. At this time, the cover plate 201 can also provide a touch surface. When a finger slides on the cover plate 201, the circuit board 202 performs touch recognition on the finger sliding trajectory to generate a touch recognition signal. The circuit board 202 can transmit the touch recognition signal to the touch recognition chip on the circuit board 202 or the processing unit of the electronic device, so that the electronic device performs related operations corresponding to the finger sliding, such as moving the cursor, moving the page, page zooming, etc., which will not be elaborated here.

[0084] In the embodiment of the present application, the pressing detection device further includes a cover plate 201, which can thus provide a pressing surface for the user. When the user presses the cover plate 201, the pressing detection device can receive the pressing operation, so that the user's pressing operation can be recognized by the pressing detection device. Since the pressing position is not limited and a pressing signal can be generated when the cover plate 201 is pressed, compared with the pressing detection scheme in the prior art, the user can press anywhere on the cover plate 201 without pressing at a specific position, improving the user experience.

[0085] Figure 10 It is a schematic diagram of the positional relationship between a bracket and a circuit board provided by an embodiment of the present application, as Figure 10 shown, in the direction from the second end of the elastic arm 2032 to the first end of the elastic arm 2032 and parallel to the circuit board 202, the distance between the second end of the elastic arm 2032 and the edge of the cover plate 201 is less than or equal to 25 mm.

[0086] As Figure 10 shown, the a arrow direction is for the elastic arm 2032 provided on the left side of the bracket body 2031, and is used to indicate the direction from the second end of the elastic arm 2032 to the first end of the elastic arm 2032 and parallel to the circuit board 202. The distance J in the figure is the distance between the second end of the elastic arm 2032 and the edge of the cover plate 201 in the direction of the a arrow, and the distance J is less than or equal to 25 mm.

[0087] It should be noted that, taking Figure 10 as an example, for the elastic arm 2032 provided on the right side of the bracket body 2031, the direction from the second end of the elastic arm 2032 to the first end of the elastic arm 2032 and parallel to the circuit board 202 is the reverse direction of the a arrow direction.

[0088] In an embodiment of the present application, in the direction pointing from the second end of the elastic arm 2032 to the first end of the elastic arm 2032 and parallel to the circuit board 202, the distance between the second end of the elastic arm 2032 and the edge of the cover plate 201 is less than or equal to 25 mm. Thus, the length of the elastic arm 2032 can be defined. When the elastic arm 2032 is too long, it is less elastic and prone to rigid deformation. Therefore, limiting the distance between the elastic arm 2032 and the edge of the circuit board 202 within 25 mm can improve the elasticity of the elastic arm 2032 and its reliability.

[0089] In a possible implementation, in the direction parallel to the circuit board 202, the minimum distance between the first end of the elastic arm 2032 and the lower electrode 2042 is greater than or equal to 10 mm.

[0090] Figure 10 The direction of arrow a in is the direction parallel to the circuit board 202. It should be understood that the direction parallel to the circuit board 202 can also be Figure 10 the direction of arrow b in, Figure 10 The distance K in is the minimum distance between the first end of the elastic arm 2032 and the lower electrode 2042 in the direction parallel to the circuit board 202, and the distance K is greater than or equal to 10 mm.

[0091] It should be understood that when the bracket body 2031 of the lower electrode 2042 is too close to the elastic arm 2032, the movement of the circuit board 202 driving the elastic arm 2032 may cause the circuit board 202 to drive the bracket body 2031 where the lower electrode 2042 is provided. Therefore, the part of the bracket body 2031 where the lower electrode 2042 is provided (for example: Figure 10 the support portion 2034 in) and the lower electrode 2042 provided on the bracket body 2031 need to be close to the elastic arm 2032 and there should also be a certain distance from the elastic arm 2032 to prevent the movement of the elastic arm 2032 from driving the bracket body 2031 to move.

[0092] In an example, the minimum distance between the second end of the elastic arm 2032 and the support portion 2034 is greater than or equal to 10 mm, whereby the distance between the second end of the elastic arm 2032 and the lower electrode 2042 can be greater than or equal to 10 mm.

[0093] In the embodiment of the present application, in the direction parallel to the circuit board 202, the minimum distance between the first end of the elastic arm 2032 and the lower electrode 2042 is greater than or equal to 10 mm. Thereby, when the circuit board 202 drives the elastic arm 2032 to generate elastic deformation, it can be prevented that the bracket main body 2031 drives the lower electrode 2042 to move. It can ensure that when the cover plate 201 is pressed, the relative distance between the upper electrode 2041 and the lower electrode 2042 changes, and it is ensured that when the cover plate 201 is pressed, the sensor 204 can normally generate a pressing signal.

[0094] In a possible implementation manner, in the direction from the third end of the elastic arm 2032 to the fourth end of the elastic arm 2032 and parallel to the circuit board 202, the distance between the third end of the elastic arm 2032 and the edge of the cover plate 201 is less than or equal to 25 mm. Wherein, the third end and the fourth end of the elastic arm 2032 are perpendicular to the second end of the elastic arm 2032, and in the direction from the third end of the elastic arm 2032 to the fourth end of the elastic arm 2032 and parallel to the circuit board 202, the distance between the third end of the elastic arm 2032 and the edge of the cover plate 201 is greater than the distance between the fourth end of the elastic arm 2032 and the edge of the cover plate 201.

[0095] Figure 10 The direction of the b arrow in is for the elastic arm 2032 arranged close to the upper side of the bracket main body 2031, and is used to indicate the direction from the third end of the elastic arm 2032 to the fourth end of the elastic arm 2032 and parallel to the circuit board 202. Figure 10 The distance L in is the distance between the third end of the elastic arm 2032 and the edge of the cover plate 201, and the distance between the third end of the elastic arm 2032 and the edge of the cover plate 201 is less than or equal to 25 mm.

[0096] It should be noted that taking Figure 10 as an example, for the elastic arm 2032 arranged close to the lower side of the bracket main body 2031, the direction from the third end of the elastic arm 2032 to the fourth end of the elastic arm 2032 and parallel to the circuit board 202 is the reverse direction of the b arrow direction.

[0097] In the embodiment of the present application, in the direction from the third end of the elastic arm 2032 to the fourth end of the elastic arm 2032 and parallel to the circuit board 202, the minimum distance between the third end of the elastic arm 2032 and the edge of the cover plate 201 is less than or equal to 25 mm. Thereby, when the edge of the cover plate 201 is pressed, the elastic arm 2032 can generate elastic deformation, and the edge of the cover plate 201 can be supported by the elastic arm 2032, preventing the user from concentrating the stress on the elastic arm 2032 not arranged close to the edge of the cover plate 201 when pressing the edge of the cover plate 201, and improving the reliability of the pressing detection device.

[0098] Figure 11 This is a schematic diagram of another bracket structure provided by an embodiment of the present application. As Figure 11 shown, a cutting structure 2035 is provided on the bracket main body 2031. The position on the bracket main body 2031 connected to the first end of the elastic arm 2032 and the position on the bracket main body 2031 opposite to the sensor 204 in the direction perpendicular to the circuit board 202 are respectively located on both sides of the cutting structure 2035.

[0099] A plurality of cutting structures 2035 are provided on the bracket main body 2031. The cutting structure 2035 cuts off the connection between the bracket main body 2031 connected to the elastic arm 2032 and the bracket main body 2031 arranged opposite to the sensor 204. It should be understood that at this time, the bracket main body 2031 and the bracket main body 2031 connected to the elastic arm 2032 are respectively fixed on the circuit board 202. When the cover plate 201 is pressed, since there is no connection between the elastic arm 2032 and the bracket main body 2031 arranged opposite to the sensor 204, when the elastic arm 2032 undergoes elastic deformation, it will not drive the bracket main body 2031 arranged opposite to the sensor 204 to move, so that when the cover plate 201 is pressed, the bracket main body 2031 arranged opposite to the sensor 204 will not be displaced.

[0100] It should be understood that Figure 11 merely as an example for convenient explanation, optionally, the cutting structure 2035 may not be perpendicular to the elastic arm 2032, and it only needs to be cut in the middle between the position on the bracket main body 2031 connected to the first end of the elastic arm 2032 and the position on the bracket main body 2031 opposite to the sensor 204 in the direction perpendicular to the circuit board 202.

[0101] In the embodiment of the present application, a cutting structure 2035 is provided on the bracket main body 2031. The position on the bracket main body 2031 connected to the first end of the elastic arm 2032 and the position on the bracket main body 2031 opposite to the sensor 204 in the direction perpendicular to the circuit board 202 are respectively located on both sides of the cutting structure 2035. Thus, when the circuit board 202 drives the elastic arm 2032 to generate elastic deformation, the bracket main body 2031 opposite to the sensor 204 will not be displaced, ensuring that when the cover plate 201 is pressed, the relative distance between the circuit board 202 and the bracket main body 2031 changes, and it can prevent the elastic deformation of the elastic arm 2032 from affecting the position of the bracket main body 2031.

[0102] In a possible implementation, a target bolt hole 208 is provided on the bracket main body 2031. The target bolt hole 208 is used to fix the bracket main body 2031 to the housing 301 of the electronic device by means of a bolt. The target bolt hole 208 is located between the position on the bracket main body 2031 where it is connected to the first end of the elastic arm 2032 and the position on the bracket main body 2031 that is opposite to the sensor 204 in the direction perpendicular to the circuit board 202.

[0103] As Figure 10 For the structure of the bracket main body 2031 shown, a plurality of bolt holes are provided on the bracket main body 2031. The plurality of bolt holes include the target bolt hole 208. The target bolt hole 208 is located between the position on the bracket main body 2031 where it is connected to the first end of the elastic arm 2032 and the position on the bracket main body 2031 that is opposite to the sensor 204 in the direction perpendicular to the circuit board 202. In one example, the target bolt hole 208 may be provided between the second end of the elastic arm 2032 and the sensor 204.

[0104] The plurality of bolt holes can fix the bracket main body 2031 to the housing 301 of the electronic device by means of a plurality of bolts, for example, as shown in the sectional views in the foregoing embodiments.

[0105] In the embodiment of the present application, a target bolt hole 208 is provided between the position on the bracket main body 2031 where it is connected to the first end of the elastic arm 2032 and the position on the bracket main body 2031 that is opposite to the sensor 204 in the direction perpendicular to the circuit board 202. Thus, the bracket main body 2031 at the position between the first end of the elastic arm 2032 and the sensor 204 can be fixed to the housing of the electronic device. When the circuit board 202 drives the elastic arm 2032 to generate elastic deformation, the bracket main body 2031 opposite to the sensor 204 will not displace, ensuring that the relative distance between the circuit board 202 and the bracket main body 2031 changes when the cover plate 201 is pressed, and preventing the elastic deformation of the elastic arm 2032 from affecting the position of the bracket main body 2031.

[0106] In a possible implementation, in the direction parallel to the circuit board 202, the distance range between the first end and the second end of the elastic arm 2032 is [7 mm, 15 mm].

[0107] In the embodiment of the present application, the distance range between the first end and the second end of the elastic arm 2032 is [7 mm, 15 mm], that is, the length range of the elastic arm 2032 is [7 mm, 15 mm]. Thus, it can ensure that the elastic arm 2032 has a certain elastic deformation ability while having relatively high strength, so the reliability of the pressing detection device is relatively high.

[0108] In a possible implementation, in a direction parallel to the circuit board 202, the distance between the sensor 204 and the edge of the cover plate 201 is less than or equal to 15 mm.

[0109] In the embodiment of the present application, the distance between the sensor 204 and the edge of the cover plate 201 is less than or equal to 15 mm. Thus, when the cover plate 201 is pressed, the sensor 204 can generate a pressing signal. Since the displacement amount of the edge of the cover plate 201 is larger than that of the center position of the cover plate 201, arranging the sensor 204 close to the edge of the cover plate 201 can enable the sensor 204 to generate a pressing signal with a larger signal amount, improving the sensitivity of the pressing detection.

[0110] The embodiment of the present application also provides an electronic device, which includes a housing 301 and a pressing detection device as described in any of the above embodiments. The bracket main body 2031 in the pressing detection device is fixed to the housing 301.

[0111] In one example, the bracket main body 2031 can be snap-fitted or bonded to the housing 301 of the electronic device with heat-set glue. In another example, the bracket can be fixed to the housing 301 of the electronic device by bolts, which is not limited herein.

[0112] In a possible implementation, the electronic device includes a laptop computer, and the bracket in the pressing detection device is fixed to the C-shell of the laptop computer.

[0113] Figure 12 is a cross-sectional view of an electronic device provided by the embodiment of the present application, as Figure 12 shown, a solution in which the bracket main body 2031 in the pressing detection device is fixed to the C-shell of the laptop computer by bolts.

[0114] In the embodiment of the present application, the bracket in the pressing detection device can be fixed to the C-shell of the laptop computer. Thus, the bracket main body 2031 can be fixed to the housing 301 of the electronic device. When the cover plate 201 is pressed, the elastic arm 2032 on the bracket can be deformed, enabling the sensor 204 to generate a pressing signal, realizing the detection of the pressing operation.

[0115] It should be understood that the embodiments in this specification are all described in a progressive manner. For the same or similar parts between the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the method embodiments, since they are basically similar to the methods described in the device and system embodiments, the description is relatively simple, and the relevant parts can refer to the description of other embodiments.

[0116] It should be understood that the above description has been made of specific embodiments of the present specification. Other embodiments are within the scope of the claims. In some cases, the acts or steps recited in the claims may be performed in a different order than in the embodiments and still achieve the desired result. Additionally, the processes depicted in the figures do not necessarily require the particular order or sequential order shown to achieve the desired result. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0117] It should be understood that an element described herein in the singular or shown only in one of the figures is not to be construed as limiting the quantity of that element to one. Additionally, modules or elements described or shown herein as separate may be combined into a single module or element, and a module or element described or shown herein as a single one may be broken into multiple modules or elements.

[0118] It should also be understood that the terms and expressions employed herein are for the purpose of description only and that one or more embodiments of the present specification should not be limited to these terms and expressions. The use of these terms and expressions does not exclude any equivalent features of the illustration and description (or parts thereof), and it should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, variations and substitutions may also exist. Accordingly, the claims should be regarded as covering all such equivalents.

Claims

1. A pressing detection device is applied to an electronic device, characterized in that, Comprising: A circuit board, a bracket, and a sensor; The bracket includes an elastic arm and a bracket body integrally provided, and the bracket body is fixed to the housing of the electronic device; When the pressing detection device receives a pressing operation, the circuit board drives the elastic arm to generate elastic deformation, so that the relative distance between the bracket body and the circuit board changes; The sensor is used to generate a pressing signal when the relative distance between the bracket body and the circuit board changes; The circuit board is used to transmit the pressing signal to the control unit and enable the control unit to identify the pressing operation according to the pressing signal; A first through hole is provided on the bracket body, a first end of the elastic arm is connected to the bracket body, and the elastic arm extends into the first through hole, wherein a plurality of the elastic arms extend into the same first through hole, or a plurality of the first through holes are provided on the bracket body, and one of the elastic arms extends into each of the first through holes.

2. The device according to claim 1, characterized in that The first end of the elastic arm is connected to the bracket body, the second end of the elastic arm is suspended, and the circuit board is bonded to the elastic arm; When the pressing detection device receives a pressing operation, the circuit board drives the elastic arm to move relative to the bracket body, so that the elastic arm generates the elastic deformation.

3. The device according to claim 2, characterized in that The elastic arm includes a deformation part parallel to the bracket body and a bending part connecting the deformation part and the bracket body, and the included angle between the bending part and the bracket body is greater than zero degrees.

4. The device according to claim 1, characterized in that, The sensor includes an upper electrode and a lower electrode; The upper electrode is bonded to the circuit board, or the upper electrode is provided in the circuit board; The lower electrode is provided on the bracket body, and the upper electrode and the lower electrode are oppositely arranged in a direction perpendicular to the circuit board; When the relative distance between the bracket body and the circuit board changes, the relative distance between the upper electrode and the lower electrode changes, so that the capacitance of the sensor changes to generate the pressing signal.

5. The device according to claim 4, wherein When a plurality of the elastic arms extend into the same first through hole, a plurality of supporting parts are connected to the bracket body, the supporting parts extend into the first through hole, and the lower electrode is provided on the supporting parts.

6. The device according to claim 4, wherein The areas and shapes of the upper electrode and the lower electrode are the same, and in a direction perpendicular to the circuit board, the projection of the lower electrode on the circuit board coincides with the upper electrode.

7. The device according to claim 4, characterized in that, The area of the upper electrode is greater than or equal to 20 square millimeters.

8. The device according to claim 4, characterized in that, In a direction perpendicular to the circuit board, the distance range between the upper electrode and the lower electrode when the pressing detection device does not receive a pressing operation is [0.3 mm, 1.0 mm].

9. The device according to claim 1, characterized in that The sensor includes an induction coil; The induction coil is provided on a surface of the circuit board opposite to the bracket body, and the induction coil is electrically connected to the circuit board; The circuit board is used to transmit a driving signal to the induction coil; The induction coil is used to receive the driving signal and generate the pressing signal when the distance between the induction coil and the bracket body changes.

10. The device according to claim 9, wherein The induction coil is disposed inside the circuit board, or the induction coil is adhered to the circuit board.

11. The device according to claim 2, characterized in that, The pressing detection device further includes a cover plate; The circuit board is disposed between the cover plate and the bracket; The cover plate is used to provide a pressing surface; When the cover plate is pressed, the pressing detection device receives a pressing operation.

12. The device according to claim 11, characterized in that In a direction pointing from the second end of the elastic arm to the first end of the elastic arm and parallel to the circuit board, the distance between the second end of the elastic arm and the edge of the cover plate is less than or equal to 25 mm.

13. The device according to claim 4, characterized in that, In a direction parallel to the circuit board, the minimum distance between the first end of the elastic arm and the lower electrode is greater than or equal to 10 mm.

14. The device according to claim 11, characterized in that, In a direction pointing from the third end of the elastic arm to the fourth end of the elastic arm and parallel to the circuit board, the distance between the third end of the elastic arm and the edge of the cover plate is less than or equal to 25 mm, wherein the third end and the fourth end of the elastic arm are perpendicular to the second end of the elastic arm, and in a direction pointing from the third end of the elastic arm to the fourth end of the elastic arm and parallel to the circuit board, the distance between the third end of the elastic arm and the edge of the cover plate is greater than the distance between the fourth end of the elastic arm and the edge of the cover plate.

15. The device according to claim 11, characterized in that, A cutting structure is provided on the bracket body, and the position on the bracket body connected to the first end of the elastic arm and the position on the bracket body opposite to the sensor in a direction perpendicular to the circuit board are respectively located on both sides of the cutting structure; Alternatively, a target bolt hole is provided on the bracket body, and the target bolt hole is used to fix the bracket body to the housing of the electronic device by a bolt, and the target bolt hole is located between the position on the bracket body connected to the first end of the elastic arm and the position on the bracket body opposite to the sensor in a direction perpendicular to the circuit board.

16. The device according to claim 11, characterized in that, In a direction parallel to the circuit board, the distance between the first end and the second end of the elastic arm ranges from [7 mm, 15 mm].

17. The device according to any one of claims 11-12 and claims 14-16, characterized in that, In a direction parallel to the circuit board, the distance between the sensor and the edge of the cover plate is less than or equal to 15 mm.

18. An electronic device, characterized in that, It includes a housing and the pressing detection device according to any one of claims 1-17; The bracket body in the pressing detection device is fixed to the housing.

19. The device according to claim 18, wherein, The electronic device includes: a laptop computer; The bracket body in the pressing detection device is fixed to the C shell of the laptop computer.

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