Pressure detection device and electronic equipment
By using elastic metal sheets and resistor components to form a series voltage divider circuit in the pressure detection device, the problems of expensive materials and poor stability of traditional pressure detection devices are solved, and the pressure detection effect with strong stability and low cost is achieved.
Patent Information
- Application Number
- CN202420360212.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-26
AI Technical Summary
The materials used in traditional pressure detection devices are expensive, complex in process, and poor detection consistency and stability, resulting in unstable pressure detection.
Using a pressure detection device including the first and second elastic metal sheets, pull-down resistors and pull-up resistors, different series voltage dividers are formed by deformation of the elastic metal sheets, and the pressure generated by the element to be measured is determined by the controller according to the voltage divider signal. , realize pressure detection.
The device achieves the stability and consistency of pressure detection, is low in cost, and can distinguish multiple pressure levels, which is suitable for scenarios where accurate detection is not required.
Smart Images
Figure CN222166367U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pressure detection, in particular to a pressure detection device and an electronic device. Background Art
[0002] Traditional pressure detection devices generally use a pressure film solution, which uses special materials to achieve pressure detection. When the special material is subjected to pressure, the resistance changes, and pressure detection is achieved by detecting the changed resistance. However, although the traditional pressure film solution can detect accurate pressure values, the materials used are expensive and the process is complicated. In addition, the resistance generated by the same batch of materials due to the same pressure may vary greatly, resulting in poor consistency and stability of pressure detection. Utility Model Content
[0003] The embodiments of the utility model aim to provide a pressure detection device and an electronic device, which can realize pressure detection and are more stable, more consistent and less costly.
[0004] In order to solve the above technical problems, the present utility model provides the following technical solutions:
[0005] In a first aspect, an embodiment of the utility model provides a pressure detection device, the pressure detection device comprising:
[0006] A first elastic metal sheet, N second elastic metal sheets and a support member, wherein the first elastic metal sheet and the N second elastic metal sheets are spaced apart and stacked on the support member, the first elastic metal sheet and the second elastic metal sheet have a first surface and a second surface opposite to each other in a thickness direction thereof, wherein N≥1; the first elastic metal sheet is located at the outermost side of the second elastic metal sheet, and the first surface of the first elastic metal sheet is used to contact with an element to be measured;
[0007] a first pull-down resistor, one end of the first pull-down resistor being electrically connected to the first elastic metal sheet, and the other end of the first pull-down resistor being grounded;
[0008] N second pull-down resistors, wherein one end of the N pull-down resistors is electrically connected to the N second elastic metal sheets one by one, and the other ends of the second pull-down resistors are all grounded;
[0009] a third pull-down resistor, one end of the third pull-down resistor being spaced apart from the second elastic metal sheet farthest from the first elastic metal sheet, and the other end of the third pull-down resistor being grounded;
[0010] A pull-up resistor and a controller, wherein one end of the pull-up resistor, the first elastic metal sheet, and one end of the first pull-down resistor are electrically connected to form a common node; the other end of the pull-up resistor is electrically connected to the first power supply, and the controller is electrically connected to the common node;
[0011] The first elastic metal sheet and the second elastic metal sheet have a first state and a second state. In the first state, the second surface of the first elastic metal sheet or the second elastic metal sheet maintains a spaced state with the second elastic metal sheet adjacent to it; in the second state, the second surface of the first elastic metal sheet or the second elastic metal sheet is electrically connected to the first surface of the second elastic metal sheet adjacent to it or one end of the third pull-down resistor; the controller is used to determine the pressure generated by the element to be measured according to the voltage division signal of the common node.
[0012] In some embodiments, the pressure detection device has N+2 gears.
[0013] In some embodiments, the elastic metal sheet and the support member are connected by welding.
[0014] In some embodiments, the supporting member is a PCB board, and the first elastic metal sheet, the N second elastic metal sheets, the first pull-down resistor, the N second pull-down resistors, the third pull-down resistor, the pull-up resistor and the controller are all installed on the PCB board.
[0015] In some embodiments, the elastic metal sheet is a pot sheet, a steel sheet or an alloy sheet.
[0016] In some embodiments, the diameter range of the pot piece is [2.8mm, 10mm].
[0017] In a second aspect, an embodiment of the present utility model provides an electronic device, wherein the electronic device comprises the pressure detection device as described above.
[0018] In some embodiments, a main control and acquisition system is also included, wherein if the number of the pressure detection devices is at least two, the pressure detection devices are connected in series or in parallel, and each of the pressure detection devices transmits the pressure information generated by the detected element to be measured to the main control and acquisition system.
[0019] In various embodiments of the utility model, the pressure detection device includes: a first elastic metal sheet, N second elastic metal sheets, a support, a first pull-down resistor, N second pull-down resistors, a third pull-down resistor, a pull-up resistor, and a controller. The pressure generated by the element to be measured is different, and the number of elastic metal sheets that are deformed is different, so that different numbers of second pull-down resistors and the first pull-down resistor form different parallel branches, and the parallel branches and the pull-up resistors form a series voltage divider circuit to generate a corresponding voltage divider signal. The controller determines the pressure generated by the element to be measured according to the voltage divider signal to achieve pressure detection. Therefore, the pressure detection device realizes pressure detection by forming different series voltage divider circuits through the deformation of the elastic metal sheet, and due to the characteristics of the elastic metal sheet and the stable resistance value of the resistor in the series voltage divider circuit, the pressure detection device has good stability, strong consistency, and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0021] Figure 1 It is a structural schematic diagram of an electronic device provided by an embodiment of the utility model;
[0022] Figure 2 It is a structural schematic diagram of one of the pressure detection devices provided in the embodiment of the utility model;
[0023] Figure 3 It is a circuit diagram of one of the pressure detection devices provided by the embodiment of the utility model;
[0024] Figure 4 It is a structural schematic diagram of one of the pressure detection devices provided in the embodiments of the present utility model. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0026] See also Figure 1 , Figure 1 Schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. Figure 1 As shown, the electronic device includes a pressure detection device 100, and the pressure detection device 100 can be used to detect pressure.
[0027] The electronic device can be any device with a pressure detection function, such as a smart seat cushion, TWS headphones, pressure pens, bracelets and other devices that require pressure sensing. Pressure detection can be achieved by using the pressure detection device 100.
[0028] For some pressure detection scenarios, it is necessary to detect the pressure of multiple parts or multiple points, so it is necessary to use multiple pressure detection devices 100 to realize the pressure of multiple points or multiple parts. Figure 1 As shown, the electronic device also includes a main control and acquisition system 200, wherein, if the number of the pressure detection devices 100 is at least two, the pressure detection devices 100 are connected in series or in parallel to transmit the pressure generated by the element to be measured detected by each of the pressure detection devices 100 to the main control and acquisition system 200.
[0029] If the pressure detection devices 100 are connected in series, the pressure value detected by the previous pressure detection device 100 is transmitted to the next pressure detection device 100, and so on, until the last pressure detection device 100 transmits all pressure values to the main control acquisition system 200, which processes and analyzes them.
[0030] If the pressure detection devices 100 are connected in parallel, each pressure detection device 100 is connected to the main control system, and each pressure detection device 100 transmits the detected pressure value to the main control acquisition system 200, which processes and analyzes it.
[0031] The conventional pressure detection device 100 generally adopts a pressure film solution, which realizes pressure detection through special materials. When the special material is subjected to pressure, the resistance changes, and the pressure detection is realized by detecting the changed resistance. However, although the conventional pressure film solution can realize the detection of accurate pressure values, the materials used are expensive, the process is complicated, and the resistance generated by the same batch of materials due to the same pressure may vary greatly, resulting in poor consistency and stability of pressure detection.
[0032] For some pressure detection scenarios, it is only necessary to distinguish multiple pressure levels without the need for precise pressure detection. For example, if the electronic device is a smart cushion, the smart cushion can identify abnormal sitting postures by detecting pressure, such as leaning left, leaning right, leaning forward, and leaning backward. At this time, it is only necessary to distinguish multiple pressure levels, and then the abnormal sitting posture can be detected through the algorithm without the need for precise pressure detection.
[0033] In this scenario where precise pressure detection is not required, using traditional pressure film solutions to detect pressure can achieve accurate detection, but it will result in problems such as high cost, poor consistency, and poor stability.
[0034] Based on the above reasons, the present invention provides a pressure detection device. Figure 2 and Figure 3 The pressure detection device 100 includes a first elastic metal sheet 10, N second elastic metal sheets 20, a support member 40, a first pull-down resistor, N second pull-down resistors, a third pull-down resistor, a pull-up resistor and a controller 30, wherein N≥1.
[0035] like Figure 2 As shown, taking N as 3 as an example, the arrangement structure of the elastic metal sheets is described, wherein the first elastic metal sheet 10 is elastic metal sheet No. 1, and the three second elastic metal sheets 20 are elastic metal sheet No. 2, elastic metal sheet No. 3, and elastic metal sheet No. 4. The first elastic metal sheet 10 and the three second elastic metal sheets 20 are spaced apart and stacked on the support member 40, and the first elastic metal sheet 10 and the second elastic metal sheet 20 have a first surface and a second surface opposite to each other in the thickness direction thereof, and the first elastic metal sheet 10 is located at the outermost side of the second elastic metal sheet 20, and the first surface of the first elastic metal sheet 10 is used to contact the element to be measured.
[0036] One end of the first pull-down resistor R1 is electrically connected to the first elastic metal sheet 10 , and the other end of the first pull-down resistor R1 is grounded.
[0037] One end of the N second pull-down resistors is electrically connected to the N second elastic metal sheets 20 one by one, and the other end of the second pull-down resistor is grounded. In this embodiment, one end of the three second pull-down resistors is electrically connected to the elastic metal sheet No. 2, the elastic metal sheet No. 3, and the elastic metal sheet No. 4, respectively. One end of the third pull-down resistor R5 is spaced apart from the second elastic metal sheet 20 farthest from the first elastic metal sheet 10, and the other end of the third pull-down resistor R5 is grounded. In this embodiment, one end of the third pull-down resistor R5 is spaced apart from the elastic metal sheet No. 4, and one end of the third pull-down resistor R5 is electrically connected to the support member 40, and the other end thereof is grounded.
[0038] The first elastic metal sheet 10 and the second elastic metal sheet 20 have a first state and a second state. In the first state, the second surface of the first elastic metal sheet 10 or the second elastic metal sheet 20 is spaced from the adjacent second elastic metal sheet 20. In the second state, the second surface of the first elastic metal sheet 10 or the second elastic metal sheet 20 is electrically connected to the first surface of the adjacent second elastic metal sheet 20 or one end of the third pull-down resistor R5.
[0039] For example: if the first elastic metal sheet 10 is not subjected to force, it is in the first state, and the second surface B of the first elastic metal sheet 10 is not connected to the first surface of the elastic metal sheet No. 2, and a spacing state is maintained; if the first elastic metal sheet 10 contacts the element to be measured, the first elastic metal sheet 10 is deformed by force, and it is in the second state, and the second surface of the first elastic metal sheet 10 is in contact and connected with the first surface of the adjacent elastic metal sheet No. 2.
[0040] If the pressure generated by the element to be tested is relatively large, so that the elastic metal sheet No. 2 is also deformed and in the second state, the second surface of the elastic metal sheet No. 2 is electrically connected to the first surface of the adjacent elastic metal sheet No. 3. If the pressure generated by the element to be tested is further increased, so that the elastic metal sheet No. 3 is also deformed and in the second state, the second surface of the elastic metal sheet No. 3 is electrically connected to the first surface of the adjacent elastic metal sheet No. 4. If the pressure generated by the element to be tested is further increased, so that the elastic metal sheet No. 4 is also deformed and in the second state, the second surface of the elastic metal sheet No. 4 is electrically connected to the third pull-down resistor R5.
[0041] Among them, when the first elastic metal sheet 10 is in the second state, the second pull-down resistor corresponding to the elastic metal sheet No. 2 and the first pull-down resistor R1 form a parallel branch. Similarly, when the Nth second elastic metal sheet 20 is in the second state, the N second pull-down resistors, the third pull-down resistor and the first pull-down resistor R1 form a parallel branch.
[0042] like Figure 3 As shown, taking N as 3 as an example, the formation process of the parallel branch is described. The three second elastic metal sheets 20 are elastic metal sheet No. 2, elastic metal sheet No. 3 and elastic metal sheet No. 4 respectively. The three second elastic metal sheets 20 are all connected in series with a second pull-down resistor, and the third pull-down resistor R5 is connected to the support member 40. If the first side of the elastic metal member is side A and the second side is side B, when the first elastic metal sheet 10 is in the second state, the first elastic metal sheet 10 is deformed, and its side B contacts and connects with the side A of the elastic metal sheet No. 2. Since the elastic metal sheet is conductive, the first pull-down resistor R1 and the first second pull-down resistor R2 form a parallel branch. Similarly, when elastic metal sheet No. 2 is in the second state, elastic metal sheet No. 2 is deformed, and surface B of elastic metal sheet No. 2 is in contact with surface A of elastic metal sheet No. 3. The first pull-down resistor R1, the first second pull-down resistor R2 and the second second pull-down resistor R3 form a new parallel branch. Similarly, when elastic metal sheet No. 4 is in the second state, elastic metal sheet No. 4 is deformed, and surface B of elastic metal sheet No. 4 is connected to support member 40. Since support member 40 is conductive, the third pull-down resistor R5, the first pull-down resistor R1 and the three second pull-down resistors form a new parallel branch.
[0043] That is, different pressures generated by the elements to be tested will cause different numbers of deformed elastic metal sheets, which in turn will cause different numbers of pull-down resistors in the parallel branches, and finally will cause different total resistances of the parallel branches.
[0044] Please continue to refer to 3, one end of the pull-up resistor R6, the first elastic metal sheet 10 and one end of the first pull-down resistor R1 are electrically connected together to form a common node, the other end of the pull-up resistor R6 is electrically connected to the first power supply, and the controller 30 is electrically connected to the common node. Among them, the first power supply can be a fixed DC power supply VCC, and the common node is connected to the acquisition end ADC end of the controller.
[0045] The pull-up resistor R6 and the parallel branch form a series voltage divider circuit to divide the voltage difference between the first power supply and the ground. In this embodiment, the DC power supply VCC is divided. Different parallel branches form different voltage divider resistors, and the voltage divider signals generated at the common node are also different. The voltage divider signal is transmitted to the acquisition end ADC of the controller, and the controller 30 determines the pressure generated by the element to be measured based on the voltage divider signal.
[0046] Therefore, the voltage difference between the first power supply and the ground is divided by the pull-up resistor R6 and the parallel branch to form a voltage division signal. The controller 30 determines the pressure generated by the element to be measured based on the voltage division signal to achieve pressure detection. The different pressures generated by the element to be measured make the number of elastic metal sheets that are deformed different, and then the number of pull-down resistors constituting the parallel branch is also different, so that the total resistance of the parallel branch is also different, resulting in different voltages divided by the total resistance of the parallel branch, and the generated voltage division signal is also different. Therefore, pressure detection of multiple gears can be achieved, and there are N+2 gears. At the same time, the resistance value of the pull-down resistor in the parallel branch will not change with the deformation of the elastic metal sheet, so that the pressure detection consistency of the pressure detection device 100 is good and the stability is strong. The process of the elastic metal sheet is mature, simple and cheap, so that the cost of the pressure detection device 100 is low, and the process is simple and easy to produce.
[0047] To sum up, the pressure detection device realizes pressure detection by forming different series voltage divider circuits through the deformation of the elastic metal sheet, and due to the characteristics of the elastic metal sheet and the stable resistance value of the resistor in the series voltage divider circuit, the pressure detection device has good stability, strong consistency and low cost.
[0048] In some embodiments, please refer again to Figure 2The support is a PCB board, the first elastic metal sheet 10, N second elastic metal sheets 20, the first pull-down resistor R1, N second pull-down resistors, the third pull-down resistor R5, the pull-up resistor R6 and the controller 30 are all installed on the PCB board, the resistors can be installed on the PCB through wiring, and the elastic metal sheets can be installed on the PCB board through welding. If all the elastic metal sheets are welded on the PCB board, the top view is as shown Figure 4 As shown, the topmost pot piece is the first elastic metal sheet 10, i.e., elastic metal sheet No. 1, and the other elastic metal sheets are hidden inside.
[0049] In some embodiments, the elastic metal sheet is a pot sheet, which has different specifications and a diameter range of [2.8mm, 10mm]. It deforms when subjected to a force of 250g, 150g, etc. Different pot sheets are selected and combined on the PCB according to the gear of the pressure detection device 100 and the pressure value of each gear, and multi-level pressure detection can be achieved through circuit classification collection. In some embodiments, the elastic metal sheet can also be a steel sheet or an alloy sheet.
[0050] In the above embodiments, the controller 30 can be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a single chip microcomputer, an ARM (Acorn RISC Machine) or other programmable logic device, a discrete gate or transistor logic, a discrete hardware component, or any combination of these components. In addition, the controller 30 can also be any conventional processor, controller, microcontroller or state machine. The controller 30 can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a DSP, and / or any other such configuration.
[0051] Take the controller 30 model as Songhan SN8F5701 SG, N as 3, the elastic metal sheet as a pot piece, and the deformation will occur when subjected to a force of 250g as an example. Figure 3 , the detection process of the pressure detection device 100 can be described as follows:
[0052] When the No. 1 pot piece (i.e., the first elastic metal piece 10) is not subjected to stress, the No. 1 pot piece and the No. 2 pot piece will not contact each other. At this time, there is only the first pull-down resistor R1 in the parallel branch, and the voltage-dividing resistor formed by the parallel branch is R1, that is, the voltage-dividing resistor at the ADC of the controller 30 is R1, and the value detected by the controller 30 is the initial value of the pressure detection device 100 without stress (U0=VCC*R1 / (R6+R1));
[0053] When a force of 250 g is applied to the No. 1 dome switch, the B side of the No. 1 dome switch contacts and connects with the A side of the No. 2 dome switch. At this time, the parallel branch includes the first pull-down resistor R1 and the first second pull-down resistor R2. The voltage-dividing resistor formed by the parallel branch is (R1 / / R2), and the value detected by the controller 30 is A (U1 = VCC * (R1 / / R2) / (R6 + (R1 / / R2)));
[0054] When a force of 500 g is applied to the No. 1 dome switch, the B side of the No. 2 dome switch contacts with the A side of the No. 3 dome switch. At this time, the parallel branch includes the first pull-down resistor R1, the first second pull-down resistor R2, and the second second pull-down resistor R3. The voltage-dividing resistor formed by the parallel branch is (R1 / / R2 / / R3), and the value detected by the controller 30 is B (U2 = VCC * (R1 / / R2 / / R3) / (R6 + (R1 / / R2 / / R3)));
[0055] When a force of 750 g is applied to the No. 1 dome switch, the B side of the No. 3 dome switch contacts with the A side of the No. 4 dome switch. At this time, the parallel branch includes the first pull-down resistor R1, the first second pull-down resistor R2, the second second pull-down resistor R3, and the third second pull-down resistor R4. The voltage-dividing resistor formed by the parallel branch is (R1 / / R2 / / R3 / / R4), and the value detected by the controller 30 is C (U3 = VCC * (R1 / / R2 / / R3 / / R4) / (R6 + (R1 / / R2 / / R3 / / R4)));
[0056] When a force of 1000 g is applied to the No. 1 dome switch, the B side of the No. 4 dome switch is short-circuited with the No. 5 pad. At this time, the parallel branch includes the first pull-down resistor R1, the first second pull-down resistor R2, the second second pull-down resistor R3, the third second pull-down resistor R4, and the third pull-down resistor R5. The voltage-dividing resistor formed by the parallel branch is (R1 / / R2 / / R3 / / R4 / / R5), and the value detected by the controller 30 is D (U4 = VCC * (R1 / / R2 / / R3 / / R4 / / R5) / (R6 + (R1 / / R2 / / R3 / / R4 / / R5)));
[0057] According to the above analysis, when the pressure F < 250 g, the dome switches are not in contact, so it is in the first gear; when 250 g < F < 500 g, it is the second gear pressure; when 500 g < F < 750 g, it is the third gear pressure; when 750 g < F < 1000 g, it is the fourth gear pressure; when F > 1000 g, it is the fifth gear pressure. Therefore, the pressure detection device 100 can detect five levels.
[0058] Similarly, the more the number of dome switches, the more pressure detection levels. Based on the presses of different pressures, the voltage-dividing resistor value at the sampling ADC can be changed, thereby changing the sampled voltage value. Therefore, presses of multiple different forces can be recognized.
[0059] Therefore, for scenarios where it is only necessary to distinguish multiple pressure levels and there is no need to accurately detect the pressure, the pressure detection device can realize pressure detection with strong stability, good consistency and low cost.
[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A pressure detection device, characterized in that: The pressure detection device comprises: A first elastic metal sheet, N second elastic metal sheets and a support member, wherein the first elastic metal sheet and the N second elastic metal sheets are spaced apart and stacked on the support member, the first elastic metal sheet and the second elastic metal sheet have a first surface and a second surface opposite to each other in a thickness direction thereof, wherein N≥1; the first elastic metal sheet is located at the outermost side of the second elastic metal sheet, and the first surface of the first elastic metal sheet is used to contact with an element to be measured; a first pull-down resistor, one end of the first pull-down resistor being electrically connected to the first elastic metal sheet, and the other end of the first pull-down resistor being grounded; N second pull-down resistors, wherein one ends of the N second pull-down resistors are electrically connected to the N second elastic metal sheets one by one, and the other ends of the second pull-down resistors are grounded; a third pull-down resistor, one end of the third pull-down resistor being spaced apart from the second elastic metal sheet farthest from the first elastic metal sheet, and the other end of the third pull-down resistor being grounded; A pull-up resistor and a controller, wherein one end of the pull-up resistor, the first elastic metal sheet, and one end of the first pull-down resistor are electrically connected to form a common node; the other end of the pull-up resistor is electrically connected to a first power supply, and the controller is electrically connected to the common node; The first elastic metal sheet and the second elastic metal sheet have a first state and a second state. In the first state, the second surface of the first elastic metal sheet or the second elastic metal sheet maintains a spaced state with the second elastic metal sheet adjacent to it; in the second state, the second surface of the first elastic metal sheet or the second elastic metal sheet is electrically connected to the first surface of the second elastic metal sheet adjacent to it or one end of the third pull-down resistor; the controller is used to determine the pressure generated by the element to be measured according to the voltage division signal of the common node.
2. The pressure detection device according to claim 1, characterized in that: The pressure detection device has N+2 gears.
3. The pressure detection device according to claim 1, characterized in that: The elastic metal sheet and the support member are connected by welding.
4. The pressure detection device according to claim 1, characterized in that: The supporting member is a PCB board, and the first elastic metal sheet, the N second elastic metal sheets, the first pull-down resistor, the N second pull-down resistors, the third pull-down resistor, the pull-up resistor and the controller are all installed on the PCB board.
5. The pressure detection device according to claim 1, characterized in that: The elastic metal sheet is a pot sheet, a steel sheet or an alloy sheet.
6. The pressure detection device according to claim 5, characterized in that: The diameter range of the pot piece is [2.8mm, 10mm].
7. An electronic device, characterized in that: Comprising a pressure detection device as described in any one of claims 1-6.
8. The electronic device according to claim 7, characterized in that: It also includes a main control and acquisition system, wherein the number of the pressure detection devices is at least two, the pressure detection devices are connected in series or in parallel, and each of the pressure detection devices transmits the pressure information generated by the detected element to be measured to the main control and acquisition system.