Switching device and electronic apparatus

Abstract

The invention discloses a switching device and electronic equipment. The switch device comprises a main body piece, a switch panel assembly, a piezoelectric assembly and a pressure sensor, wherein the main body piece is provided with a first opening part; the switch panel assembly is arranged at the first opening part, and the switch panel assembly is connected with the main body piece; the piezoelectric assembly is arranged between the main body piece and the switch panel assembly, and the main body piece and the switch panel assembly are both abutted against the piezoelectric assembly; the pressure sensor is arranged on the side, away from the piezoelectric assembly, of the main body piece, and the pressure sensor is connected with the main body piece.

Description

Technical Field

[0001] This application relates to the technical field of electronic products, and more particularly, to a switching device and an electronic device. Background Art

[0002] A vibration feedback switch with a piezoelectric ceramic is a switching device that utilizes the direct and inverse piezoelectric effects of the piezoelectric ceramic to achieve vibration feedback; due to its high sensitivity, good feedback performance, low power consumption, long lifespan, and easy installation, it is widely used in consumer electronic products, automotive electronic products, household appliance products, and game equipment products.

[0003] In existing such vibration feedback switches, a pressure sensor is usually placed below the piezoelectric ceramic; however, since the area of the pressure sensor is often small, the support it provides to the piezoelectric ceramic is very unstable, resulting in the weakening of the vibration feedback force of the piezoelectric ceramic; at the same time, the pressure sensor is very likely to cause a large calibration error under the unstable piezoelectric ceramic.

[0004] In view of this, a new technical solution is needed to solve the above technical problems. Summary of the Invention

[0005] One objective of this application is to provide a new technical solution for a switching device and an electronic device.

[0006] According to the first aspect of this application, a switching device is provided, and the switching device includes:

[0007] A main body member, the main body member having a first opening;

[0008] A switch panel assembly, the switch panel assembly being disposed at the first opening, and the switch panel assembly being connected to the main body member;

[0009] A piezoelectric assembly, the piezoelectric assembly being disposed between the main body member and the switch panel assembly, and both the main body member and the switch panel assembly being in contact with the piezoelectric assembly;

[0010] A pressure sensor, the pressure sensor being disposed on a side of the main body member away from the piezoelectric assembly, and the pressure sensor being connected to the main body member.

[0011] Optionally, the main body member includes a frame portion, a connecting plate, and a connecting column; the frame portion has a cavity portion communicating with the first opening, the connecting plate is disposed in the cavity portion, and the connecting plate is connected to the frame portion; the connecting column is connected to the connecting plate, and the connecting column is disposed on a side of the connecting plate away from the first opening.

[0012] Optionally, the piezoelectric component is disposed between the switch panel component and the connection plate; the pressure sensor is disposed at an end of the connection column away from the connection plate.

[0013] Optionally, the pressure sensor includes a sensor body and a circuit board fixedly connected thereto, the circuit board is connected to the connection plate by a fastener, and the sensor body abuts against an end of the connection column away from the connection plate.

[0014] Optionally, the central axes of the piezoelectric component, the connection column, and the sensor body coincide with each other.

[0015] Optionally, the pressure sensor further includes a sensor elastic member, the sensor body abuts against the sensor elastic member, and the sensor elastic member abuts against an end of the connection column away from the connection plate.

[0016] Optionally, a receiving groove is formed at an end of the connection column away from the connection plate, and the sensor elastic member is disposed in the receiving groove.

[0017] Optionally, the switch panel component is floatingly connected to the main body component.

[0018] Optionally, the main body component is provided with a connection hole; the switch panel component includes a panel body, a fixing column, and a positioning block, a first end of the fixing column is connected to the panel body, the fixing column passes through the connection hole, and the fixing column and the main body component are in clearance fit at the connection hole; the positioning block is connected to a second end of the fixing column by a fastener, and a gap portion is provided between the positioning block and the main body component; the switch device further includes a floating elastic member, one end of the floating elastic member abuts against the main body component and the other end abuts against the positioning block.

[0019] Optionally, the positioning block is provided with a positioning hole, and a second end of the fixing column is sleeved in the positioning hole; an inner wall of the positioning block corresponding to the positioning hole includes a first arc surface and a first flat surface, a side wall of the fixing column at its second end includes a second arc surface and a second flat surface, the first arc surface is correspondingly connected to the second arc surface, and the first flat surface is correspondingly connected to the second flat surface.

[0020] Optionally, the floating elastic member is a rubber gasket.

[0021] Optionally, the switch device further includes a cover body; the main body component has a second opening portion, the second opening portion is disposed opposite to the first opening portion, the cover body is connected to the main body component, and the cover body covers the second opening portion.

[0022] According to a second aspect of the present application, there is provided an electronic device, which includes the switching device as described in the first aspect.

[0023] The switching device provided according to an embodiment of the present application can improve the structural stability of the switching device and reduce the calibration error of the pressure sensor by directly disposing the pressure sensor below the main body member instead of directly below the piezoelectric component.

[0024] Other features and advantages of the present application will become clear from the following detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings. Description of the Drawings

[0025] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0026] Figure 1 is an exploded schematic view of the overall structure of a switching device according to an embodiment of the present application;

[0027] Figure 2 is a cross-sectional schematic view of the overall structure of a switching device according to an embodiment of the present application;

[0028] Figure 3 is Figure 2 an enlarged schematic view of the X position in

[0029] Figure 4 is Figure 2 an enlarged schematic view of the Y position in

[0030] Figure 5 is an exploded schematic view of a partial structure of a switching device according to an embodiment of the present application.

[0031] Description of the Reference Numerals:

[0032] 1. Switching device; 11. Main body member; 111. Frame portion; 112. Connecting plate; 1121. First limiting protrusion; 1122. Second limiting protrusion; 113. Connecting column; 110. Connecting hole; 100. Gap portion; 12. Switch panel assembly; 121. Panel body; 122. Fixed column; 1221. Second arc surface; 1222. Second flat surface; 123. Positioning block; 1230. Positioning hole; 1231. First arc surface; 1232. First flat surface; 13. Piezoelectric component; 130. Piezoelectric sheet; 131. First elastic sheet; 132. Second elastic sheet; 14. Pressure sensor; 141. Sensor body; 142. Circuit board; 143. Sensor elastic member; 15. Floating elastic member; 16. Cover body; 17. First fastener; 18. Second fastener. Detailed Embodiments

[0033] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present application or its application or use.

[0035] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0036] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments may have different values.

[0037] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0038] Referring to Figures 1 to 5 As shown, according to an embodiment of the present application, a switching device 1 is provided. The switching device 1 includes a main body member 11, a switch panel assembly 12, a piezoelectric assembly 13, and a pressure sensor 14. The main body member 11 has a first opening; the switch panel assembly 12 is disposed at the first opening, and the switch panel assembly 12 is connected to the main body member 11; the piezoelectric assembly 13 is disposed between the main body member 11 and the switch panel assembly 12, and both the main body member 11 and the switch panel assembly 12 are in contact with the piezoelectric assembly 13; the pressure sensor 14 is disposed on a side of the main body member 11 away from the piezoelectric assembly 13, and the pressure sensor 14 is connected to the main body member 11.

[0039] When the switching device provided by the embodiment of the present application is in operation, when a user applies a pressing force to the switch panel assembly 12, the pressing force is sequentially transmitted through the switch panel assembly 12, the piezoelectric assembly 13, and the main body member 11 to the pressure sensor 14; when the pressing force value detected by the pressure sensor 14 reaches the trigger threshold, the piezoelectric assembly 13 is triggered and starts to vibrate. The vibration of the piezoelectric assembly 13 is transmitted to the user through the switch panel assembly 12, so that the user can feel the vibration feedback.

[0040] In the switching device provided in the embodiment of the present application, since the pressure sensor 14 is directly disposed below the main body member 11 instead of directly below the piezoelectric assembly 13, the structural stability of the switching device can be improved, and the calibration error of the pressure sensor 14 can be reduced.

[0041] Referring to Figures 2 to 3 As shown, in one embodiment, the main body member 11 includes a frame portion 111, a connecting plate 112, and a connecting column 113; the frame portion 111 has a cavity portion communicating with the first opening portion, the connecting plate 112 is disposed in the cavity portion, and the connecting plate 112 is connected to the frame portion 111; the connecting column 113 is connected to the connecting plate 112, and the connecting column 113 is disposed on a side of the connecting plate 112 away from the first opening portion.

[0042] In this specific example, the main body member 11 includes a frame portion 111 having a first opening portion, and a connecting plate 112 and a connecting column 113 disposed in the frame portion 111; its structure is simple and easy to process. Optionally, the frame portion 111, the connecting plate 112, and the connecting column 113 are of an integrally formed structure.

[0043] Further, a first limiting protrusion 1121 is disposed on a side of the connecting plate 112 facing the first opening portion, and the piezoelectric assembly 13 is assembled inside the first limiting protrusion 1121. The first limiting protrusion 1121 limits the position of the piezoelectric assembly 13 within a certain range, preventing the piezoelectric assembly 13 from shifting in position during frequent vibrations.

[0044] Referring to Figures 1 to 3 As shown, in one embodiment, the piezoelectric assembly 13 is disposed between the switch panel assembly 12 and the connecting plate 112; the pressure sensor 14 is disposed at an end of the connecting column 113 facing away from the connecting plate 112.

[0045] In this specific example, in the direction of the pressing force ( Figure 2 the Z direction shown in ) borne by the switch panel assembly 12, the piezoelectric assembly 13, the connecting plate 112, the connecting column 113, and the pressure sensor 14 are arranged in sequence; the pressure sensor 14 is not in direct contact with the piezoelectric assembly 13, and the piezoelectric assemblies 13 are separated by the connecting plate 112 and the connecting column 113, and the structural stability of the switching device is higher.

[0046] Referring to Figures 1 to 3As shown, in one embodiment, the pressure sensor 14 includes a fixedly connected sensor body 141 and a circuit board 142. The circuit board 142 is connected to the connection plate 112 by fasteners, and the sensor body 141 abuts against one end of the connection post 113 that is away from the connection plate 112.

[0047] In this specific example, the sensor body 141 can be welded to the circuit board 142, for example. The circuit board 142 is connected to the connection plate 112 by fasteners. The fasteners are, for example, the first fasteners 17, and the first fasteners 17 can be screws, for example. Among them, the sensor body 141 abuts against the end of the connection post 113 that is away from the connection plate 112, which is beneficial to the sensor body 141 for accurately detecting the pressing force.

[0048] The circuit board 142 is electrically connected to the FPC in the piezoelectric component 13. When the pressing force value detected by the pressure sensor 14 reaches the trigger threshold, the circuit board 142 outputs a waveform signal to the piezoelectric component 13, thereby triggering the piezoelectric component 13 to start vibrating.

[0049] Refer to Figures 2 to 3 As shown, in one embodiment, the central axes of the piezoelectric component 13, the connection post 113, and the sensor body 141 coincide with each other.

[0050] In this specific example, in the direction of the pressing force borne by the switch panel assembly 12 ( Figure 2 the Z direction shown in), the piezoelectric component 13, the connection plate 112, the connection post 113, and the pressure sensor 14 are arranged in sequence, and the central axes of the piezoelectric component 13, the connection plate 112, the connection post 113, and the pressure sensor 14 coincide with each other; that is, the connection plate 112 and the connection post 113 are located directly below the piezoelectric component 13, and the sensor body 141 is located directly below the connection post 113. In this way, the pressing force can be more accurately transmitted to the connection plate 112 and the connection post 113 through the piezoelectric component 13 and then to the sensor body 141, thereby ensuring that the sensor body 141 has a high detection accuracy.

[0051] Optionally, refer to Figure 3 As shown, the piezoelectric component 13 includes a piezoelectric sheet 130, a first elastic sheet 131, and a second elastic sheet 132; the first elastic sheet 131 and the second elastic sheet 132 are respectively connected to both sides of the piezoelectric sheet 130, and the first elastic sheet 131 and the second elastic sheet 132 can amplify the amplitude of the vibration of the piezoelectric sheet 130.

[0052] Refer to Figure 3As shown, in one embodiment, the pressure sensor 14 further includes a sensor elastic member 143. The sensor body 141 abuts against the sensor elastic member 143, and the sensor elastic member 143 abuts against one end of the connecting column 113 that is away from the connecting plate 112.

[0053] In this specific example, by providing the sensor elastic member 143, the sensor body 141 abuts against one end of the connecting column 113 that is away from the connecting plate 112 through the sensor elastic member 143, which can better transmit the pressing force to the sensor body 141. Optionally, the sensor elastic member 143 is a rubber gasket; it has a small size and can clearly transmit the pressing force to the sensor body 141.

[0054] Refer to Figure 3 As shown, in one embodiment, a receiving groove is formed at one end of the connecting column 113 that is away from the connecting plate 112, and the sensor elastic member 143 is disposed in the receiving groove.

[0055] In this specific example, by disposing the sensor elastic member 143 in the receiving groove formed at one end of the connecting column 113 that is away from the connecting plate 112, the installation of the sensor elastic member 143 is made easier, the position of the sensor elastic member 143 is more stable, and it is also beneficial to save space.

[0056] There is a certain gap between the end of the connecting column 113 that is away from the connecting plate 112 and the end of the sensor body 141 that is away from the sensor elastic member 143, ensuring the effectiveness of the transmission of the pressing force from the sensor elastic member 143 to the sensor body 141.

[0057] Refer to Figure 2 、 Figure 4 As shown, in one embodiment, the switch panel assembly 12 is floatingly connected to the main body member 11.

[0058] In this specific example, since the switch panel assembly 12 is in a floating state relative to the main body member 11, when the vibration of the piezoelectric assembly 13 is transmitted to the switch panel assembly 12, the user can feel a clearer vibration feedback, thereby improving the user experience.

[0059] Refer to Figure 2 、 Figure 4As shown, in one embodiment, the main body member 11 is provided with a connection hole 110. Specifically, the connection hole 110 is provided on the connection plate 112. The switch panel assembly 12 includes a panel body 121, a fixing post 122, and a positioning block 123. The first end of the fixing post 122 is connected to the panel body 121. The fixing post 122 passes through the connection hole 110, and the fixing post 122 and the main body member 11 are in clearance fit at the connection hole 110. The positioning block 123 is connected to the second end of the fixing post 122 by a fastener. A clearance portion 100 is provided between the positioning block 123 and the main body member 11. The fastener is, for example, a second fastener 18, and the second fastener 18 can be, for example, a screw. The switch device further includes a floating elastic member 15. One end of the floating elastic member 15 abuts against the main body member 11, and the other end abuts against the positioning block 123.

[0060] In this specific example, the switch panel assembly 12 is floatingly connected to the main body member 11 through the floating elastic member 15. The width of the clearance portion 100 is the floating amount of the switch panel assembly 12 in the Z direction toward the main body member 11.

[0061] Optionally, a second limiting protrusion 1122 is provided on the side of the connection plate 112 facing away from the first opening portion, and the floating elastic member 15 is assembled inside the second limiting protrusion 1122.

[0062] Optionally, a plurality of fixing posts 122 are provided on the panel body 121, for example, four are provided. The positioning blocks 123 and the floating elastic members 15 are provided in one-to-one correspondence with the fixing posts 122.

[0063] Refer to Figure 5 As shown, in one embodiment, the positioning block 123 is provided with a positioning hole 1230. The second end of the fixing post 122 is sleeved in the positioning hole 1230. The inner wall of the positioning block 123 corresponding to the positioning hole 1230 includes a first arc surface 1231 and a first flat surface 1232. The side wall of the fixing post 122 at its second end includes a second arc surface 1221 and a second flat surface 1222. The first arc surface 1231 is correspondingly connected to the second arc surface 1221, and the first flat surface 1232 is correspondingly connected to the second flat surface 1222.

[0064] Since the piezoelectric component 13 drives the switch panel component 12 to vibrate when vibrating, during frequent vibrations, there is a tendency for relative rotation between the positioning block 123 and the fixing column 122. If relative rotation occurs between the positioning block 123 and the fixing column 122, the fastener connecting the positioning block 123 and the fixing column 122 will become loose. Therefore, in this specific example, by providing a first flat surface 1232 on the positioning block 123 and a second flat surface 1222 on the fixing column 122, the first flat surface 1232 and the second flat surface 1222 cooperate with each other to play a role in preventing rotation, preventing relative rotation between the positioning block 123 and the fixing column 122, and improving the structural stability of the switch device.

[0065] Referring Figure 4 As shown, in one embodiment, the floating elastic member 15 is a rubber gasket.

[0066] In this specific example, since the rubber gasket can achieve a smaller size in the height direction, using a rubber gasket as the floating elastic member 15 is beneficial for saving space and making the structure of the switch device more simple and compact. In addition, using a rubber gasket as the floating elastic member 15 is convenient for assembly; and it can clearly transmit the vibration feedback of the piezoelectric component 13.

[0067] Referring Figures 1 to 2 As shown, in one embodiment, the switch device further includes a cover body 16; the main body member 11 has a second opening, the second opening is disposed opposite to the first opening, the cover body 16 is connected to the main body member 11, and the cover body 16 covers the second opening.

[0068] In this specific example, the second opening provided in the main body member 11 facilitates the assembly of the pressure sensor 14; after the pressure sensor 14 is assembled from one side of the second opening, the cover body 16 can be covered on the second opening.

[0069] According to another embodiment of the present application, an electronic device is provided, and the electronic device includes the switch device 1 as described above. The electronic device can be, for example, an in-vehicle electronic product applied to an automobile.

[0070] In the above embodiments, the differences between the various embodiments are mainly described. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a more optimal embodiment. Considering the simplicity of the text, it will not be elaborated here.

[0071] Although some specific embodiments of the present application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A switch device, characterized in that: The switch device comprises: A main body (11), wherein the main body (11) has a first opening; A switch panel assembly (12), wherein the switch panel assembly (12) is arranged at the first opening portion, and the switch panel assembly (12) is connected to the main body (11); A piezoelectric component (13), wherein the piezoelectric component (13) is disposed between the main body (11) and the switch panel component (12), and the main body (11) and the switch panel component (12) are both in contact with the piezoelectric component (13); A pressure sensor (14), wherein the pressure sensor (14) is arranged on a side of the main body (11) away from the piezoelectric component (13), and the pressure sensor (14) is connected to the main body (11).

2. The switch device according to claim 1, characterized in that: The main body (11) comprises a frame portion (111), a connecting plate (112) and a connecting column (113); the frame portion (111) has a cavity portion connected to the first opening portion, the connecting plate (112) is arranged in the cavity portion, and the connecting plate (112) is connected to the frame portion (111); the connecting column (113) is connected to the connecting plate (112), and the connecting column (113) is arranged on a side of the connecting plate (112) away from the first opening portion.

3. The switch device according to claim 2, characterized in that: The piezoelectric component (13) is arranged between the switch panel component (12) and the connecting plate (112); the pressure sensor (14) is arranged at an end of the connecting column (113) away from the connecting plate (112).

4. The switch device according to claim 3, characterized in that: The pressure sensor (14) comprises a sensor body (141) and a circuit board (142) which are fixedly connected, the circuit board (142) being connected to the connecting plate (112) via a fastener, and the sensor body (141) being in contact with an end of the connecting column (113) which is away from the connecting plate (112).

5. The switch device according to claim 4, characterized in that: The central axes of the piezoelectric component (13), the connecting column (113) and the sensor body (141) coincide with each other.

6. The switch device according to claim 4, characterized in that: The pressure sensor (14) further comprises a sensor elastic member (143), the sensor body (141) abuts against the sensor elastic member (143), and the sensor elastic member (143) abuts against an end of the connecting column (113) facing away from the connecting plate (112).

7. The switch device according to claim 6, characterized in that: An end of the connecting column (113) that is away from the connecting plate (112) is provided with a receiving groove, and the sensor elastic member (143) is arranged in the receiving groove.

8. The switch device according to claim 1 or 2, characterized in that: The switch panel assembly (12) is floatingly connected to the main body (11).

9. The switch device according to claim 8, characterized in that: The main body (11) is provided with a connecting hole (110); the switch panel assembly (12) comprises a panel body (121), a fixing column (122) and a positioning block (123); the first end of the fixing column (122) is connected to the panel body (121); the fixing column (122) is inserted into the connecting hole (110), and the fixing column (122) and the main body (11) are clearance-matched at the connecting hole (110); the positioning block (123) is connected to the second end of the fixing column (122) by a fastener, and a gap portion (100) is provided between the positioning block (123) and the main body (11); the switch device further comprises a floating elastic member (15); one end of the floating elastic member (15) is in contact with the main body (11), and the other end is in contact with the positioning block (123).

10. The switch device according to claim 9, characterized in that The positioning block (123) is provided with a positioning hole (1230), and the second end of the fixing column (122) is sleeved in the positioning hole (1230); the inner wall of the positioning block (123) corresponding to the positioning hole (1230) includes a first arcuate surface (1231) and a first straight surface (1232), and the side wall of the fixing column (122) at its second end includes a second arcuate surface (1221) and a second straight surface (1222), the first arcuate surface (1231) is correspondingly connected to the second arcuate surface (1221), and the first straight surface (1232) is correspondingly connected to the second straight surface (1222).

11. The switch device according to claim 9, characterized in that The floating elastic member (15) is a rubber pad made of rubber.

12. The switch device according to claim 1, characterized in that The switch device further comprises a cover body (16); the main body (11) has a second opening portion, the second opening portion is arranged opposite to the first opening portion, the cover body (16) is connected to the main body (11), and the cover body (16) covers the second opening portion.

13. An electronic device, characterized in that: The electronic device comprises a switch device as claimed in any one of claims 1-12.

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