Electronic devices

Abstract

The present application provides an electronic device, belonging to the technical field of electronic products, the electronic device comprising: a rear shell, a frame, a display module and a pressure sensing module; the rear shell, the frame and the display module are stacked in sequence, and the frame comprises reinforcing ribs; the reinforcing ribs are provided with mounting grooves, and the opening of the mounting grooves faces the display module, and the pressure sensing module is arranged in the mounting grooves.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment products, and in particular to an electronic equipment. Background Art

[0002] With the development of mobile technology, pressure sensing modules are gradually being used in various electronic devices, and can be used as hidden pressure sensing buttons in electronic devices. However, when the pressure sensing module is installed, it is usually set under the screen. Therefore, setting the pressure sensing module usually requires occupying the installation space of the middle frame, which causes the layout of other devices on the middle frame to change, and may even cause insufficient installation space for other devices. It can be seen that when the existing pressure sensing module is installed in an electronic device, it is easy to cause the original device layout in the electronic device to change. Summary of the invention

[0003] The present application provides an electronic device that can alleviate the problem that when an existing pressure sensing module is installed in an electronic device, the original device layout in the electronic device is easily changed.

[0004] The embodiment of the present application provides an electronic device, comprising: a frame, a display module and a pressure sensing module;

[0005] The rear housing, the frame and the display module are stacked in sequence, and the frame includes reinforcing ribs;

[0006] The reinforcing rib is provided with a mounting groove, and the opening of the mounting groove faces the display module, and the pressure sensing module is arranged in the mounting groove.

[0007] In the embodiment of the present application, a mounting groove is opened in the reinforcing rib of the middle frame, and the pressure sensing module is arranged in the mounting groove. Since the mounting groove is opened in the reinforcing rib of the middle frame, it does not need to occupy the installation space of the middle frame, and therefore will not affect the layout of other devices on the middle frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the frame body in the embodiment of the present application;

[0009] Figure 2 is a cross-sectional view of a reinforcing rib in an embodiment of the present application;

[0010] Figure 3 is a schematic diagram of the connection between the first Wheatstone bridge and the circuit board in an embodiment of the present application;

[0011] Figure 4 This is one of the structural schematic diagrams of the pressure sensing module in the embodiment of the present application;

[0012] Figure 5 This is the second structural diagram of the pressure sensing module in the embodiment of the present application;

[0013] Figure 6 This is the third structural diagram of the pressure sensing module in the embodiment of the present application;

[0014] Figure 7 This is the fourth structural diagram of the pressure sensing module in the embodiment of the present application;

[0015] Figure 8 is a schematic diagram of the structure of the second Wheatstone bridge in an embodiment of the present application;

[0016] Fig. 9 1 is a detection principle diagram of the second temperature detection circuit in the present embodiment;

[0017] Fig.10 This is one of the distribution diagrams of the pressure-sensitive buttons in this embodiment;

[0018] Fig.11 This is the second schematic diagram of the distribution of pressure-sensitive buttons in this embodiment. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0020] See also Figure 1-11 , is an electronic device provided in an embodiment of the present application, the electronic device comprising: a rear shell, a frame 100, a display module and a pressure sensing module 200;

[0021] The rear housing, the frame 100 and the display module are stacked in sequence, and the frame 100 includes a reinforcing rib 110, and the reinforcing rib 110 can be used to fix the target device 300 to the frame 100;

[0022] The reinforcing rib 110 defines a mounting groove 120 , and the opening of the mounting groove 120 faces the display module. The pressure sensing module 200 is disposed in the mounting groove 120 .

[0023] The frame 100 may be a middle frame of an electronic device, and the frame 100 may be a metal frame 100. The pressure-sensitive module 200 may form a pressure-sensitive button of the electronic device, and a user may trigger a corresponding function in the electronic device through the pressure-sensitive button. For example, the pressure-sensitive button may allow a user to turn on a flashlight of the electronic device, so that the user may quickly turn on the flashlight function of the electronic device without turning on the screen. In addition, the pressure-sensitive button may also be a button for quickly starting a specific application in the electronic device, and there is no limitation on this.

[0024] Specifically, since the opening of the mounting groove 120 is opposite to the display module, the pressing portion of the pressure sensing module 200 can be directed toward the display module, and the pressure sensing module 200 can fit the display module. In this way, the area where the display module and the pressure sensing module 200 are opposite to each other can form the pressing portion of the pressure sensing module 200, and the user only needs to press the pressing portion to trigger the corresponding function of the pressure sensing module 200. It can be understood that the display module can include a display screen that can generate deformation, so that the deformation of the display screen can be transmitted to the pressure sensing module 200. For example, the display screen can be a flexible screen.

[0025] The reinforcing rib 110 may be a neck bone in the frame 100 for mounting various functional components in the electronic device, for example, see Figure 1 , the reinforcing rib 110 can be any one of the following neck bones: a first neck bone position 111 for installing a front camera, a second neck bone position 112 for installing a motor, a third neck bone position for installing a rear camera 113, and a fourth neck bone position 114 for installing a battery, wherein the first neck bone position 111, the second neck bone position 112, and the third neck bone position are respectively annular reinforcing ribs located on the side of the frame 100 facing away from the display module, the fourth neck bone position 114 is located on the side of the frame 100 facing away from the display module, and the fourth neck bone position 114 includes two parallel strip reinforcing ribs. In addition, the first neck bone position can also be set on the side of the frame 100 facing the display module to install the front camera. Accordingly, the target device 300 can be any one of the following devices: a front camera, a motor, a rear camera 113, and a battery.

[0026] In this embodiment, by opening a mounting groove 120 in the reinforcing rib 110 of the middle frame, and setting the pressure sensing module 200 in the mounting groove 120, since the pressure sensing module 200 is opposite to the display module, the pressing part of the pressure sensing module 200 is located on the display screen of the electronic device, thereby avoiding the problem of false triggering caused by the pressure sensing button being set at the edge of the electronic device. In addition, since the mounting groove 120 is opened in the reinforcing rib 110 of the middle frame, it is not necessary to occupy the installation space of the middle frame, so it will not affect the layout of other devices on the middle frame. In addition, since there is no need to set an opening on the frame 100, the integrity of the frame 100 will not be destroyed, and the problem of poor stress performance of the frame 100 due to opening a hole in the frame 100 can be avoided.

[0027] Optionally, the electronic device further includes a circuit board 400, and the circuit board 400 includes a first power supply terminal 420 and a pressure detection circuit 410;

[0028] The pressure sensing module 200 includes a first Wheatstone bridge, which includes a first input end and a first output end. The first power supply terminal 420 is electrically connected to the first input end, and the pressure detection circuit 410 is electrically connected to the first output end.

[0029] Specifically, the first Wheatstone bridge may include at least one deformation resistor, for example, the first Wheatstone bridge may include three fixed resistors and one deformation resistor, so that when the pressure sensing module 200 is subjected to the pressure of the user, the shape of the deformation resistor changes, thereby causing the resistance value of the deformation resistor to change, so that the pressure magnitude of the pressure sensing module 200 can be determined by only detecting the voltage division magnitude of the deformation resistor, and when the pressure value exceeds a preset threshold, the corresponding function of the pressure sensing module 200 is triggered. Among them, the deformation resistor can be a resistance strain gauge in the prior art, and when the shape of the deformation resistor changes, the resistance value of the deformation resistor changes accordingly. It can be understood that there is a corresponding relationship between the deformation amount of the deformation resistor and the change amount of the resistance value of the deformation resistor.

[0030] The first power supply terminal 420 can provide a fixed voltage to the first Wheatstone bridge, the pressure detection circuit 410 can detect the change in the voltage division of each resistor in the first Wheatstone bridge, and the storage module of the circuit board 400 can pre-store the corresponding relationship between the pressure received by the pressure sensing module 200 and the change in the voltage division of each resistor in the first Wheatstone bridge. In this way, when the user presses the pressure sensing module 200, the pressure detection circuit 410 can detect the change in the voltage division of each resistor in the first Wheatstone bridge, and determine the pressure received by the pressure sensing module 200 according to the corresponding relationship between the pressure received by the pressure sensing module 200 and the change in the voltage division of each resistor in the first Wheatstone bridge. When the pressure received by the pressure sensing module 200 exceeds the preset threshold, the corresponding function of the pressure sensing module 200 is controlled to be turned on and off.

[0031] Optionally, the first Wheatstone bridge may include a first circuit and a second circuit, the first circuit and the second circuit are connected in parallel, the first circuit includes a first deformation resistor 211 and a third deformation resistor 213 connected in series, and the second circuit includes a second deformation resistor 212 and a fourth deformation resistor 214 connected in series;

[0032] The input end of the first circuit and the input end of the second circuit are electrically connected to the first power supply terminal 420 respectively, and the output end of the first circuit and the output end of the second circuit are grounded respectively;

[0033] The first output end includes a first sub-output end 215 and a second sub-output end 216, the first sub-output end 215 is located between the first deformation resistor 211 and the third deformation resistor 213, the second sub-output end 216 is located between the second deformation resistor 212 and the fourth deformation resistor 214, and the pressure detection circuit 410 includes a first terminal and a second terminal, one of the first terminal and the second terminal is electrically connected to the first sub-output end 215, and the other is electrically connected to the second sub-output end 216.

[0034] The first deformation resistor 211 , the second deformation resistor 212 , the third deformation resistor 213 and the fourth deformation resistor 214 may be resistance strain gauges in the prior art.

[0035] Specifically, see Figure 3Since the first sub-output terminal 215 is located between the first deformation resistor 211 and the third deformation resistor 213, and the voltage value at both ends of the first circuit is fixed, when the resistance value of any one of the first deformation resistor 211 and the third deformation resistor 213 changes, the voltage division of the first deformation resistor 211 and the third deformation resistor 213 will change accordingly, thereby causing the voltage value of the first sub-output terminal 215 to change accordingly. Correspondingly, since the second sub-output terminal 216 is located between the second deformation resistor 212 and the fourth deformation resistor 214, and the voltage value at both ends of the second circuit is fixed, when the resistance value of any one of the second deformation resistor 212 and the fourth deformation resistor 214 changes, the voltage division of the second deformation resistor 212 and the fourth deformation resistor 214 will change accordingly, thereby causing the voltage value of the second sub-output terminal 216 to change accordingly. Therefore, by connecting the first terminal and the second terminal of the pressure detection circuit 410 to the first sub-output terminal 215 and the second sub-output terminal 216 respectively, so as to detect the voltage difference between the first sub-output terminal 215 and the second sub-output terminal 216, the storage module of the circuit board 400 can pre-store the correspondence between the pressure value received by the pressure sensing module 200 and the voltage difference. In this way, the pressure detection circuit 410 can determine the size of the pressure value received by the pressure sensing module 200 based on the voltage difference.

[0036] In this embodiment, the voltage difference between the first sub-output terminal 215 and the second sub-output terminal 216 is detected, and the pressure value is determined based on the voltage difference. In this way, when the resistance value of any of the four shape-changing resistors changes, the voltage difference will change, thereby improving the sensitivity of the pressure sensing module 200.

[0037] Optionally, the pressure sensing module 200 further includes a support plate, the support plate is parallel to the display module, and the support plate includes a first support portion 221 and a second support portion 222 that are spaced apart;

[0038] The first deformation resistor 211 and the second deformation resistor 212 are located on a first side surface of the support plate, and the third deformation resistor 213 and the fourth deformation resistor 214 are located on a second side surface of the support plate. The first side surface is the side surface of the support plate facing the display module, and the second side surface is the side surface of the support module facing away from the display module.

[0039] The first deformation resistor 211 , the second deformation resistor 212 , the third deformation resistor 213 and the fourth deformation resistor 214 are respectively connected between the first supporting portion 221 and the second supporting portion 222 .

[0040] Among them, see Figure 4The support plate may be a steel sheet, so that when the pressure sensing module 200 receives pressure, the steel sheet and the deformation resistor may be deformed synchronously. The first support portion 221 and the second support portion 222 may be two different sub-support plates, for example, see Figure 4 The support plate includes a first sub-support plate and a second sub-support plate, the first sub-support plate and the second sub-support plate are located in the same plane, and the first sub-support plate and the second sub-support plate are parallel to the display module respectively. The first sub-support plate and the second sub-support plate are spaced apart from each other.

[0041] The first deformation resistor 211 is connected across the first sub-support plate and the second sub-support plate, and one end of the first deformation resistor 211 is fixedly connected to the first sub-support plate, and the other end of the first deformation resistor 211 is fixedly connected to the second sub-support plate. Correspondingly, the second deformation resistor 212 is connected across the first sub-support plate and the second sub-support plate, and one end of the second deformation resistor 212 is fixedly connected to the first sub-support plate, and the other end of the second deformation resistor 212 is fixedly connected to the second sub-support plate. The third deformation resistor 213 is connected across the first sub-support plate and the second sub-support plate, and one end of the third deformation resistor 213 is fixedly connected to the first sub-support plate, and the other end of the third deformation resistor 213 is fixedly connected to the second sub-support plate. The fourth deformation resistor 214 is connected across the first sub-support plate and the second sub-support plate, and one end of the fourth deformation resistor 214 is fixedly connected to the first sub-support plate, and the other end of the fourth deformation resistor 214 is fixedly connected to the second sub-support plate. The first deformation resistor 211 is disposed opposite to the third deformation resistor 213 , and the second deformation resistor 212 is disposed opposite to the fourth deformation resistor 214 .

[0042] In this way, the first deformation resistor 211, the second deformation resistor 212, the third deformation resistor 213 and the fourth deformation resistor 214 are respectively in a suspended state. When the pressure sensing module 200 receives pressing force, the first deformation resistor 211, the second deformation resistor 212, the third deformation resistor 213 and the fourth deformation resistor 214 can be deformed toward or away from the gap between the first support plate and the second support part 222 respectively.

[0043] Specifically, see Figure 5 , a state diagram of the pressure sensing module 200 when it is not under pressure, see Figure 6When the pressure sensing module 200 is subjected to downward pressure, the deformation resistor located on the first side is compressed, and the deformation resistor located on the second side is stretched. Since the deformation states of the deformation resistors located on the first side and the second side are completely opposite, the change trends of the deformation resistors located on the first side and the second side may also be opposite. For example, the resistance values ​​of the first deformation resistor 211 and the second deformation resistor 212 located on the first side can be reduced respectively, while the resistance values ​​of the third deformation resistor 213 and the fourth deformation resistor 214 located on the second side can be increased. In this way, since the resistance value of the first deformation resistor 211 decreases and the resistance value of the third deformation resistor 213 increases in the first circuit, the voltage value of the first sub-output terminal 215 has a significant change. At the same time, since the resistance value of the second deformation resistor 212 decreases and the resistance value of the fourth deformation resistor 214 increases in the second circuit, the voltage value of the second sub-output terminal 216 has a significant change. In this way, when the pressure sensing module 200 has only a small deformation, the voltage difference between the first sub-output terminal 215 and the second sub-output terminal 216 can also produce a significant change, thereby further improving the sensitivity of the pressure detection circuit 410.

[0044] In another embodiment of the present application, the first support portion 221 and the second support portion 222 may also be two parts of the same support plate. For example, a strip hole may be provided on the support plate, the strip hole forms a gap between the first support portion 221 and the second support portion 222, and the first support portion 221 and the second support portion 222 are formed on both sides of the strip hole. In addition, the connection relationship between each deformation resistor and the first support portion 221 and the second support portion 222 is the same as that in the above embodiment, and will not be described again to avoid repetition.

[0045] Optionally, the circuit board 400 further includes a second power supply terminal 430 and a first temperature detection circuit, and the pressure sensing module 200 further includes a second Wheatstone bridge, and the second Wheatstone bridge includes a second input terminal and a second output terminal;

[0046] The second power supply terminal 430 is electrically connected to the second input end, and the first temperature detection circuit is electrically connected to the second output end to detect a temperature difference between the first side and the second side;

[0047] The circuit board 400 is used to correct the detection result of the pressure detection circuit 410 according to the detection result of the first temperature detection circuit.

[0048] Specifically, since the resistance value of a resistor usually changes with temperature, that is, the same resistor usually exhibits different resistance values ​​at different temperatures. Since various electrical components are provided inside the electronic device, the electrical components may generate heat during operation, and therefore, there may be a temperature difference between the first side surface and the second side surface of the support plate. This temperature difference may cause the resistance value of the deformation resistor to change, thereby causing an error in the voltage difference between the first sub-output terminal 215 and the second sub-output terminal 216, and further causing the problem of inaccurate pressure detection results.

[0049] Based on this, in an embodiment of the present application, a second Wheatstone bridge and a first temperature detection circuit are provided to detect the temperature difference between the first side and the second side, and the pressure detection result is corrected based on the temperature difference to improve the accuracy of the pressure detection result.

[0050] Specifically, the temperature of the first side surface can be used as a reference temperature, and the corresponding relationship between the temperature difference and the resistance change can be predetermined. In this way, when the temperature of the second side surface is different from that of the first side surface, the resistance change caused by the temperature difference can be determined based on the temperature difference between the first side surface and the second side surface, and the resistance values ​​of the third deformation resistor 213 and the fourth deformation resistor 214 located on the second side surface are compensated by the resistance change amount. For example, due to the temperature difference between the first side surface and the second side surface, when the resistance value of the deformation resistor on the second side surface is greater than the resistance value of the deformation resistor on the first side surface by R, if the current resistance value of the third deformation resistor 213 is R3 and the current resistance value of the fourth deformation resistor 214 is R4, then after correction: the current resistance value of the third deformation resistor 213 is (R3-R), and the current resistance value of the fourth deformation resistor 214 is (R4-R).

[0051] In this embodiment, the detection result of the pressure detection circuit 410 is corrected according to the detection result of the first temperature detection circuit, so that it can be ensured that when calculating the voltage difference between the first sub-output terminal 215 and the second sub-output terminal 216, the resistance values ​​of the first deformation resistor 211, the second deformation resistor 212, the third deformation resistor 213 and the fourth deformation resistor 214 used are the resistance values ​​under the same temperature conditions. Thus, the problem of inaccurate pressure detection results caused by the temperature difference between the first side surface and the second side surface is avoided.

[0052] Optionally, the second Wheatstone bridge includes a third circuit and a fourth circuit, the third circuit is connected in parallel with the fourth circuit, the third circuit includes a first thermistor 241 and a third thermistor 243 connected in series, and the fourth circuit includes a second thermistor 242 and a fourth thermistor 244 connected in series;

[0053] The input end of the third circuit and the input end of the fourth circuit are electrically connected to the second power supply terminal 430 respectively, and the output end of the third circuit and the output end of the fourth circuit are grounded respectively;

[0054] The second output terminal includes a third sub-output terminal 245 and a fourth sub-output terminal 246, the third sub-output terminal 245 is located between the first thermistor 241 and the third thermistor 243, the fourth sub-output terminal 246 is located between the second thermistor 242 and the fourth thermistor 244, the first temperature detection circuit includes a third terminal and a fourth terminal, one of the third terminal and the fourth terminal is electrically connected to the third sub-output terminal 245, and the other is electrically connected to the fourth sub-output terminal 246.

[0055] It is understandable that the first thermistor 241 , the second thermistor 242 , the third thermistor 243 and the fourth thermistor 244 exhibit different resistance values ​​under different temperature conditions.

[0056] Specifically, see Figure 8 Since the third sub-output terminal 245 is located between the first thermistor 241 and the third thermistor 243, and the voltage value at both ends of the third circuit is fixed, when the resistance value of any one of the first thermistor 241 and the third thermistor 243 changes, the voltage division of the first thermistor 241 and the third thermistor 243 will change accordingly, thereby causing the voltage value of the third sub-output terminal 245 to change accordingly. Correspondingly, since the fourth sub-output terminal 246 is located between the second thermistor 242 and the fourth thermistor 244, and the voltage value at both ends of the fourth circuit is fixed, when the resistance value of any one of the second thermistor 242 and the fourth thermistor 244 changes, the voltage division of the second thermistor 242 and the fourth thermistor 244 will change accordingly, thereby causing the voltage value of the fourth sub-output terminal 246 to change accordingly. Therefore, by connecting the third terminal and the fourth terminal of the first temperature detection circuit to the third sub-output terminal 245 and the fourth sub-output terminal 246 respectively, so as to detect the voltage difference between the third sub-output terminal 245 and the fourth sub-output terminal 246, the storage module of the circuit board 400 can pre-store the correspondence between the temperature difference between the first side and the second side and the voltage difference between the third sub-output terminal 245 and the fourth sub-output terminal 246. In this way, the first temperature detection circuit can determine the size of the temperature difference between the first side and the second side according to the voltage difference between the third sub-output terminal 245 and the fourth sub-output terminal 246.

[0057] In this embodiment, by detecting the voltage difference between the third sub-output terminal 245 and the fourth sub-output terminal 246, and determining the temperature difference based on the voltage difference, when the resistance value of any of the four thermistors changes, the voltage difference will change, thereby improving the sensitivity of the first temperature detection circuit.

[0058] Optionally, the first thermistor 241 and the second thermistor 242 are connected to the first side surface respectively, and the third thermistor 243 and the fourth thermistor 244 are connected to the second side surface respectively.

[0059] Specifically, see Figure 4 The first thermistor 241 and the third thermistor 243 are located on two opposite sides of the first support portion 221, and the second thermistor 242 and the fourth thermistor 244 are located on two opposite sides of the second support portion 222. In this way, when there is a temperature difference between the two sides of any one of the first support portion 221 and the second support portion 222, the first temperature detection circuit can detect the temperature difference and correct the detection result of the pressure detection circuit 410 based on the temperature difference to further improve the accuracy of the pressure detection result.

[0060] Optionally, the electronic device further includes a target device 300, the reinforcing rib 110 is used to fix the target device 300 to the frame 100, and the circuit board 400 further includes a second temperature detection circuit;

[0061] The second temperature detection circuit is electrically connected to a target thermistor to detect the temperature of the target device 300 . The target thermistor is any one of the first thermistor 241 , the second thermistor 242 , the third thermistor 243 and the fourth thermistor 244 .

[0062] Specifically, in the prior art, a temperature detection element is usually disposed near the target device 300 to detect the ambient temperature of the target device 300 .

[0063] In the embodiment of the present application, by connecting the target thermistor to the second temperature detection circuit, when the temperature of the environment in which the target thermistor is located changes, the resistance value of the target thermistor will also change accordingly. The second temperature detection circuit can determine the temperature of the environment in which the target thermistor is located according to the temperature change of the target thermistor. Since the target thermistor is arranged in the mounting groove 120 of the reinforcing rib 110, and the target device 300 is installed in the frame 100 through the reinforcing rib 110, the ambient temperature of the target thermistor can be regarded as the ambient temperature of the target device 300. In this way, since the target thermistor can be reused as a detection element for detecting the ambient temperature of the target device 300, it is not necessary to additionally set an ambient temperature detection element inside the electronic device to detect the ambient temperature of the target device 300, thereby saving the installation space inside the electronic device.

[0064] Optionally, the second temperature detection circuit includes a third power supply terminal 440, a first resistor 450 and a temperature detection module, and the third power supply terminal 440 is grounded through the first resistor 450 and the target thermistor in sequence;

[0065] A third output terminal is formed between the first resistor 450 and the target thermistor, and the temperature detection module is electrically connected to the third output terminal.

[0066] Specifically, see Fig. 9 In one embodiment of the present application, the detection principle of the second temperature detection circuit is further explained by taking the third thermistor 243 as the target thermistor as an example.

[0067] A switch may be provided between the third output terminal and the first thermistor 241, and when it is necessary to detect the ambient temperature of the target device 300, the switch is opened, and when it is not necessary to detect the ambient temperature of the target device 300, the switch is closed. In this way, the first thermistor 241 may be prevented from affecting the detection result of the second temperature detection circuit.

[0068] The first resistor 450 can be a fixed value resistor. Since the third power supply terminal 440 is grounded through the first resistor 450 and the third thermistor 243 in sequence, the sum of the voltages divided by the first resistor 450 and the third thermistor 243 is the power supply voltage of the third power supply terminal 440. The resistance value of the third thermistor 243 changes with the change of the ambient temperature. Therefore, the voltage divided value of the third thermistor 243 also changes with the change of the temperature. Among them, the voltage value of the third output terminal is the real-time voltage divided value of the third thermistor 243. Since the power supply voltage of the first resistor 450 and the third power supply terminal 440 is a fixed value, the corresponding relationship between the voltage divided value of the third thermistor 243 and the ambient temperature of the third thermistor 243 can be stored in the storage module of the circuit board 400 in advance. In this way, when the temperature detection module detects the voltage value of the third output terminal, it can determine the ambient temperature of the third thermistor 243, that is, determine the ambient temperature of the target device 300.

[0069] It can be understood that the correspondence between the deformation amount of the above-mentioned deformation resistor and the change in resistance of the deformation resistor, the correspondence between the pressure received by the pressure sensing module 200 and the change in the voltage division of each resistor in the first Wheatstone bridge, the correspondence between the pressure value received by the pressure sensing module 200 and the voltage difference, the correspondence between the temperature difference between the first side and the second side and the resistance change, and the correspondence between the voltage division value of the third thermistor 243 and the ambient temperature of the third thermistor 243 can all be obtained by looking up a table or multiple tests.

[0070] Optionally, see Figure 5 The outer surface of the pressure sensing module 200 is provided with an insulating diaphragm 231 . By providing the insulating diaphragm 231 , the tightness of the connection between the internal components of the pressure sensing module 200 can be ensured.

[0071] Optionally, the frame 100 is provided with at least two reinforcing ribs 110 , and each of the reinforcing ribs 110 is provided with a mounting groove 120 , and each of the mounting grooves 120 is provided with a pressure sensing module 200 .

[0072] Specifically, the at least two reinforcing ribs 110 can be used to install different target devices 300 in the electronic device, for example, see Fig.10 , one mounting slot 120 may be provided at each of the third cervical vertebra position and the fourth cervical vertebra position 114, and one pressure sensing module 200 may be provided in each mounting slot 120. Alternatively, see Fig.11, one installation slot 120 is respectively provided at the second neck bone position 112, the third neck bone position and the fourth neck bone position 114, and one pressure sensing module 200 is arranged in each installation slot 120. In addition, one installation slot 120 can be respectively provided at the first neck bone position 111, the second neck bone position 112, the third neck bone position and the fourth neck bone position 114, and one pressure sensing module 200 is arranged in each installation slot 120, so that pressure sensing buttons can be formed at different positions of the electronic device, and different pressure sensing buttons can correspond to different system functions in the electronic device, thereby meeting the pressure sensing requirements of different positions of the electronic device.

[0073] Optionally, since the pressure detection circuit 410 and the second temperature detection circuit may affect each other, a time-division multiplexing method can be used to realize the pressure detection of the pressure sensing module 200 and the ambient temperature detection of the target device 300. For example, the circuit board 400 may also include a control module, which is electrically connected to the pressure detection circuit 410, the first temperature detection circuit and the temperature detection circuit, respectively. When it is necessary to detect the ambient temperature of the target device 300, the control module can control the first power supply terminal 420 and the second power supply terminal 430 to be powered on, respectively, and at the same time, control the third power supply terminal 440 to be powered on. Correspondingly, when it is not necessary to detect the ambient temperature of the target device 300, the control module can control the first power supply terminal 420 and the second power supply terminal 430 to be powered on, respectively, and at the same time, control the third power supply terminal 440 to be powered on.

[0074] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0075] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling an electronic device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0076] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An electronic device, It is characterized in that include: Back cover, frame, display module and pressure sensing module; The rear housing, the frame and the display module are stacked in sequence, and the frame includes reinforcing ribs; The reinforcing rib is provided with a mounting groove, and the opening of the mounting groove faces the display module, the pressure sensing module is arranged in the mounting groove, and the reinforcing rib is a neck bone for mounting functional components in the electronic device, and the functional components are other functional components other than the pressure sensing module; The electronic device further comprises a circuit board, wherein the circuit board comprises a first power supply terminal, a pressure detection circuit and a first temperature detection circuit; The pressure sensing module includes a first Wheatstone bridge and a support plate, the first Wheatstone bridge includes a first input end and a first output end, the first power supply terminal is electrically connected to the first input end, and the pressure detection circuit is electrically connected to the first output end; The first Wheatstone bridge comprises a first deformation resistor, a second deformation resistor, a third deformation resistor and a fourth deformation resistor, wherein the first deformation resistor and the second deformation resistor are located on a first side surface of the support plate, and the third deformation resistor and the fourth deformation resistor are located on a second side surface of the support plate; The first temperature detection circuit is used to detect the temperature difference between the first side surface and the second side surface, and the circuit board is used to correct the detection result of the pressure detection circuit according to the detection result of the first temperature detection circuit.

2. The electronic device according to claim 1, It is characterized in that The first Wheatstone bridge includes a first circuit and a second circuit, the first circuit and the second circuit are connected in parallel, the first circuit includes the first deformation resistor and the third deformation resistor connected in series, and the second circuit includes the second deformation resistor and the fourth deformation resistor connected in series; The input end of the first circuit and the input end of the second circuit are electrically connected to the first power supply terminal respectively, and the output end of the first circuit and the output end of the second circuit are grounded respectively; The first output end includes a first sub-output end and a second sub-output end, the first sub-output end is located between the first deformation resistor and the third deformation resistor, and the second sub-output end is located between the second deformation resistor and the fourth deformation resistor. The pressure detection circuit includes a first terminal and a second terminal, and one of the first terminal and the second terminal is electrically connected to the first sub-output end, and the other is electrically connected to the second sub-output end.

3. The electronic device according to claim 2, It is characterized in that The support plate is parallel to the display module, and the support plate includes a first support portion and a second support portion which are spaced apart; The first side surface is the side surface of the support plate facing the display module, and the second side surface is the side surface of the support plate facing away from the display module; The first deformation resistor, the second deformation resistor, the third deformation resistor and the fourth deformation resistor are respectively connected between the first supporting portion and the second supporting portion.

4. The electronic device according to claim 3, It is characterized in that The circuit board further includes a second power supply terminal, the pressure sensing module further includes a second Wheatstone bridge, and the second Wheatstone bridge includes a second input terminal and a second output terminal; The second power supply terminal is electrically connected to the second input end, and the first temperature detection circuit is electrically connected to the second output end to detect a temperature difference between the first side surface and the second side surface.

5. The electronic device according to claim 4, It is characterized in that The second Wheatstone bridge comprises a third circuit and a fourth circuit, the third circuit is connected in parallel with the fourth circuit, the third circuit comprises a first thermistor and a third thermistor connected in series, and the fourth circuit comprises a second thermistor and a fourth thermistor connected in series; The input end of the third circuit and the input end of the fourth circuit are electrically connected to the second power supply terminal respectively, and the output end of the third circuit and the output end of the fourth circuit are grounded respectively; The second output end includes a third sub-output end and a fourth sub-output end, the third sub-output end is located between the first thermistor and the third thermistor, and the fourth sub-output end is located between the second thermistor and the fourth thermistor. The first temperature detection circuit includes a third terminal and a fourth terminal, and one of the third terminal and the fourth terminal is electrically connected to the third sub-output end, and the other is electrically connected to the fourth sub-output end.

6. The electronic device according to claim 5, It is characterized in that The first thermistor and the second thermistor are connected to the first side surface respectively, and the third thermistor and the fourth thermistor are connected to the second side surface respectively.

7. The electronic device according to claim 5, It is characterized in that The electronic device further includes a target device, the reinforcing rib is used to fix the target device to the frame, and the circuit board further includes a second temperature detection circuit; The second temperature detection circuit is electrically connected to a target thermistor to detect the temperature of the target device, and the target thermistor is any one of the first thermistor, the second thermistor, the third thermistor, and the fourth thermistor.

8. The electronic device according to claim 7, It is characterized in that The second temperature detection circuit includes a third power supply terminal, a first resistor and a temperature detection module, and the third power supply terminal is grounded through the first resistor and the target thermistor in sequence; A third output terminal is formed between the first resistor and the target thermistor, and the temperature detection module is electrically connected to the third output terminal.

9. The electronic device according to any one of claims 1 to 8, It is characterized in that The frame body is provided with at least two reinforcing ribs, and each of the reinforcing ribs is provided with the installation groove, and each of the installation grooves is provided with a pressure sensing module.

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