Key structure and electronic device

Abstract

The utility model relates to the technical field of key, specifically disclose a kind of key structure and electronic equipment. Key structure includes mounting bracket and key assembly;Mounting bracket is located on circuit board;Key assembly includes key body and the self-rotation axis integrally formed with key body;Mounting bracket is provided with shaft slot, and the self-rotation axis of key body is embedded in shaft slot, and the end of key body away from self-rotation axis can be pressed down contact type switch;The side of key body close to self-rotation axis is connected with mounting bracket. In the utility model, by the integrally formed of self-rotation axis and key body, cooperate the clamping of key body and mounting bracket, the high integration and simplification of key structure are realized, material cost is reduced, multiple parts stacking internal space is avoided, thus it is beneficial to the miniaturization design of product, and key assembly can be directly pressed down and installed on mounting bracket, to reduce assembly production difficulty.

Description

Technical Field

[0001] This utility model relates to the field of button technology, and in particular to a button structure and an electronic device. Background Technology

[0002] Button structures are a fundamental and crucial type of human-computer interaction interface. Their core function is to convert the mechanical force applied by the user into electrical signals, thereby enabling command input. Therefore, they are widely used in various electronic devices, such as game controllers, audio-visual products, and wearable devices. Currently, button structures with rotary functions are widely used due to their intuitive operation.

[0003] In the prior art, the key structure with rotation function generally includes a key support, a key cap, a metal shaft and a return spring. The key cap is sleeved on the metal shaft through a bearing or bushing. The metal shaft passes through the key support and the key cap and the key support are connected by a return spring. This allows the key cap to be pressed down when the user applies force and to return to its original position after the force is removed. However, this key structure is complex, has many parts and is difficult to assemble and produce. This not only increases material costs but also hinders the miniaturization design of the product. Utility Model Content

[0004] The purpose of this invention is to provide a button structure and electronic device that achieves high integration and simplification of the button structure, reduces assembly and production difficulty, reduces material costs, and facilitates miniaturization design of the product.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, this utility model provides a button structure for pressing a contact switch on a circuit board, the button structure comprising:

[0007] Mounting bracket, which is disposed on the circuit board;

[0008] A button assembly includes a button body and a rotating shaft integrally formed with the button body; the mounting bracket is provided with a shaft groove, the rotating shaft of the button body is embedded in the shaft groove, and the end of the button body away from the rotating shaft can press down the contact switch; the side of the button body near the rotating shaft is engaged with the mounting bracket.

[0009] As an alternative to the above-mentioned button structure, the distance between the groove walls at the opening of the shaft groove is greater than the diameter of the rotating shaft.

[0010] As an alternative to the above-mentioned button structure, the groove wall at the opening of the shaft groove is set with an arc-shaped structure.

[0011] As an alternative to the above-mentioned button structure, the side of the button body near the rotation axis is provided with an elastic groove that engages with the mounting bracket, and the mounting bracket is provided with a protrusion that engages with the elastic groove.

[0012] As an optional solution to the above-mentioned button structure, the button assembly further includes an elastic arm integrally formed with the button body. The elastic arm has the elastic groove, the mounting bracket is provided with a mounting hole, and the wall of the mounting hole has the locking protrusion. The elastic arm can be inserted into the mounting hole so that the locking protrusion engages with the elastic groove.

[0013] As an optional solution to the above-mentioned button structure, the button assembly also includes a buckle integrally formed with the button body. The buckle is located on the side away from the rotation axis. The mounting bracket is provided with a plug hole. The buckle is inserted into the plug hole and can be snapped onto the inner wall of the mounting bracket on the side away from the button body.

[0014] As an alternative to the above-mentioned button structure, the button assembly further includes a pressing post, which is disposed opposite to the contact switch.

[0015] As an alternative to the above-mentioned button structure, the mounting bracket is provided with a mounting groove, and the button assembly is disposed in the mounting groove.

[0016] As an optional solution to the above-mentioned button structure, both the button assembly and the contact switch include a plurality of them. The plurality of button assemblies are arranged sequentially at intervals along the length direction of the mounting groove, and the plurality of contact switches correspond one-to-one with the plurality of button assemblies.

[0017] On the other hand, this utility model provides an electronic device, including the button structure described above.

[0018] The beneficial effects of this utility model are as follows:

[0019] The button structure includes a mounting bracket and a button assembly. The mounting bracket is mounted on the circuit board. The button assembly includes a button body and a rotating shaft integrally formed with the button body. The mounting bracket has a shaft groove, and the rotating shaft of the button body is embedded in the shaft groove, allowing the button body to swing relative to the mounting bracket around the rotating shaft. The end of the button body away from the rotating shaft can press down on a contact switch, thereby turning on the contact switch. At the same time, the side of the button body closest to the rotating shaft engages with the mounting bracket, allowing the button body to return to its original position after the user releases the force applied to it.

[0020] The button body has an elastic groove on the side near the rotation axis, and the mounting bracket has a protrusion that engages with the elastic groove. The protrusion stops the groove wall of the elastic groove when the button body presses down on the contact switch. Thus, after the user applies force to press the button body, the button body can press down and turn on the contact switch. The contact switch is a reset switch. After the contact switch is clicked, it resets, and the elastic groove undergoes elastic deformation under the stop of the protrusion. After the user removes the force applied to the button body, the elastic groove can release its elasticity, allowing the button body to return to its original position.

[0021] This button structure achieves a high degree of integration and simplification of the button structure through the integral molding of the self-rotating shaft and the button body, combined with the setting of elastic slots and protrusions. This reduces material costs and avoids multiple parts stacking up and occupying internal space, thus facilitating the miniaturization design of the product. Furthermore, the button assembly can be directly pressed down and installed on the mounting bracket, thereby reducing the difficulty of assembly and production. At the same time, it eliminates multiple failure points caused by the installation of traditional rotating shafts and improves assembly reliability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the button structure provided in an embodiment of the present utility model;

[0023] Figure 2 This is a partial disassembly diagram of the button structure provided in an embodiment of the present utility model;

[0024] Figure 3 This is a partial disassembly diagram of the button structure provided in this embodiment of the utility model mounted on a circuit board;

[0025] Figure 4 This is a cross-sectional view of the button structure provided in this embodiment of the invention mounted on a circuit board.

[0026] In the picture:

[0027] 1. Mounting bracket; 11. Shaft groove; 12. Mounting hole; 121. Snap protrusion; 13. Insertion hole; 14. Pressing hole; 15. Connecting post; 16. Positioning post; 17. Mounting recess; 2. Button assembly; 21. Button body; 22. Rotating shaft; 23. Elastic arm; 231. Elastic slot; 24. Snap fastener; 25. Pressing post; 3. Circuit board; 31. Connecting hole; 32. Positioning hole; 4. Contact switch. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] Button structures are a fundamental and crucial type of human-computer interaction interface. Their core function is to convert the mechanical force applied by the user into electrical signals, thereby enabling command input. Therefore, they are widely used in various electronic devices, such as game controllers, audio-visual products, and wearable devices. Currently, button structures with rotary functions are widely used due to their intuitive operation.

[0033] In the prior art, the key structure with rotation function generally includes a key support, a key cap, a metal shaft and a return spring. The key cap is sleeved on the metal shaft through a bearing or bushing. The metal shaft passes through the key support and the key cap and the key support are connected by a return spring. This allows the key cap to be pressed down when the user applies force and to return to its original position after the force is removed. However, this key structure is complex, has many parts and is difficult to assemble and produce. This not only increases material costs but also hinders the miniaturization design of the product.

[0034] like Figures 1-4 As shown, this embodiment provides a button structure for pressing the contact switch 4 on the circuit board 3.

[0035] The button structure includes a mounting bracket 1 and a button assembly 2. The mounting bracket 1 is mounted on the circuit board 3. The button assembly 2 includes a button body 21 and a rotating shaft 22 integrally formed with the button body 21. The mounting bracket 1 is provided with a shaft groove 11, and the rotating shaft 22 of the button body 21 is embedded in the shaft groove 11. Thus, the button body 21 can swing relative to the mounting bracket 1 with the rotating shaft 22 as the axis. The end of the button body 21 away from the rotating shaft 22 can press down on the contact switch 4, thereby realizing the opening of the contact switch 4. At the same time, the side of the button body 21 near the rotating shaft 22 is engaged with the mounting bracket 1, so that the button body 21 can return to its original position after the user removes the force applied to the button body 21.

[0036] Specifically, the side of the button body 21 near the rotation shaft 22 is fitted with an elastic groove 231 that engages with the mounting bracket 1. The mounting bracket 1 has a locking protrusion 121 that engages with the elastic groove 231. The locking protrusion 121 stops the groove wall of the elastic groove 231 when the button body 21 presses down on the contact switch 4. Thus, after the user applies force to press the button body 21, the button body 21 can press down and turn on the contact switch 4. The contact switch 4 is a reset switch. After the contact switch 4 is clicked, it resets, and the elastic groove 231 undergoes elastic deformation under the stop of the locking protrusion 121. After the user removes the force applied to the button body 21, the elastic groove 231 can release its elasticity, allowing the button body 21 to return to its original position. Optionally, the contact switch 4 is a micro switch or a tactile switch. After the user removes the force applied to the button body 21, the self-resetting function of the contact switch 4 can assist the button body 21 in returning to its original position.

[0037] This button structure achieves high integration and simplification of the button structure through the integral molding of the rotating shaft 22 and the button body 21, combined with the setting of the elastic slot 231 and the protrusion 121. This reduces material costs and avoids the stacking of multiple parts occupying internal space, thus facilitating the miniaturization design of the product. Furthermore, the button assembly 2 can be directly pressed and installed on the mounting bracket 1, thereby reducing assembly and production difficulty and eliminating multiple failure points caused by the installation of traditional rotating shafts, improving assembly reliability. In particular, by selecting different materials for the rotating shaft 22, adjusting the fit tolerance between the rotating shaft 22 and the shaft groove 11, and adding damping grease, the rotational damping and pressing force can be precisely controlled.

[0038] like Figure 2 and Figure 3 As shown, the button assembly 2 also includes an elastic arm 23 integrally formed with the button body 21. The elastic arm 23 has an elastic groove 231, and the mounting bracket 1 is provided with a mounting hole 12. The wall of the mounting hole 12 has a locking protrusion 121. The elastic arm 23 can be inserted into the mounting hole 12 so that the locking protrusion 121 engages with the elastic groove 231. Therefore, when the button assembly 2 is installed on the mounting bracket 1, the elastic arm 23 can be directly inserted into the mounting hole 12, and the locking protrusion 121 automatically engages with the elastic groove 231, thereby reducing the assembly difficulty. The elastic arm 23 does not affect the overall size of the button structure. Optionally, the end of the elastic arm 23 and / or the end of the locking protrusion 121 are provided with an inclined surface, so that the difficulty of the locking protrusion 121 engaging with the elastic groove 231 when the button assembly 2 is installed on the mounting bracket 1 can be reduced by the inclined surface. Alternatively, the mounting bracket 1 has shaft grooves 11 on both sides of the mounting hole 12, and the button body 21 is connected to two rotating shafts 22, which correspond one-to-one with the two shaft grooves 11, thereby improving the stability of the button body 21 when it swings.

[0039] like Figure 2 and Figure 4 As shown, the button assembly 2 also includes a snap fastener 24 integrally formed with the button body 21. The snap fastener 24 is located on the side away from the rotation axis 22. The mounting bracket 1 is provided with a insertion hole 13. The snap fastener 24 is inserted into the insertion hole 13 and can be snapped onto the inner wall of the mounting bracket 1 on the side away from the button body 21. Thus, when the button assembly 2 is installed on the mounting bracket 1, the snap fastener 24 can be directly inserted into the insertion hole 13 and automatically snapped onto the inner wall of the mounting bracket 1, thereby reducing assembly difficulty. Furthermore, through the snap fastener 24 and the inner wall of the mounting bracket 1, combined with the snap fastener 121 and the elastic slot 231, the button assembly 2 can be prevented from detaching from the mounting bracket 1. Optionally, the mounting bracket 1 has two insertion holes 13, and the button body 21 is connected to two snap fasteners 24. The two snap fasteners 24 correspond one-to-one with the two insertion holes 13, thereby preventing the button body 21 from being tilted relative to the mounting bracket 1.

[0040] Furthermore, the hooking direction of the buckle 24 is consistent with the protrusion direction of the buckle 121, both being perpendicular to the direction in which the button assembly 2 is installed on the mounting bracket 1. Therefore, during the installation of the button assembly 2 on the mounting bracket 1, the buckle 121 can first engage with the elastic slot 231, and then the buckle 24 passes through the insertion hole 13 through elastic deformation. Finally, the buckle 24 deforms back and engages with the inner wall of the mounting bracket 1. This process can be achieved by pressing, making installation quick, convenient, and secure.

[0041] Specifically, the gap between the groove walls at the opening of the shaft groove 11 is greater than the diameter of the rotating shaft 22, so that there is an axial gap between the opening of the shaft groove 11 and the rotating shaft 22, thereby reducing the difficulty of the button body 21 swinging relative to the mounting bracket 1 via the rotating shaft 22.

[0042] Optionally, the groove wall at the opening of the shaft groove 11 is set with an arc-shaped structure, which can reduce the wear of the rotating shaft 22 and extend the service life of the button structure.

[0043] Optionally, the contact position between the rotating shaft 22 and the shaft groove 11 can be rectangular at the tail and arc-shaped at the corners, with the shaft groove 11 corresponding to a U-shaped groove. The arc-shaped corners allow for a larger friction distance, which enhances the pressing feel and prevents the rotating shaft 22 from slipping during rotation. Alternatively, the tail of the rotating shaft 22 can be hemispherical, with the shaft groove 11 corresponding to a bowl-shaped groove. The hemispherical shape allows for continuous contact with the shaft groove 11 without any wobbling, and the friction changes very smoothly during rotation, providing a uniform damping effect. Alternatively, the tail of the rotating shaft 22 can be D-shaped, with the shaft groove 11 corresponding to a U-shaped groove. The D-shaped structure allows the button assembly 2 to have clear mechanical feedback of being pressed into place or returning to its original position, and it is simple to manufacture, facilitating low-cost mass production.

[0044] like Figure 2 and Figure 3 As shown, the button assembly 2 also includes a pressing post 25, which is disposed opposite to the contact switch 4. This allows the pressing post 25 to press and open the contact switch 4 when the user presses the button body 21. Specifically, the mounting bracket 1 is provided with a pressing hole 14, into which the pressing post 25 is inserted. The pressing hole 14 is disposed opposite to the contact switch 4, allowing the pressing post 25 to press against the contact switch 4 via the pressing hole 14 when the user presses the button body 21, thus preventing misalignment and improving the accuracy of the button assembly 2 when pressing down to open the contact switch 4.

[0045] like Figures 2-4As shown, the mounting bracket 1 is also provided with a connecting post 15, and the circuit board 3 is provided with a connecting hole 31. The connector can pass through the connecting hole 31 and connect to the connecting post 15, thereby realizing the detachable installation of the mounting bracket 1 on the circuit board 3. Optionally, the connector is a connecting screw. At the same time, the mounting bracket 1 is also provided with a positioning post 16, and the circuit board 3 is provided with a positioning hole 32. The positioning post 16 is inserted into the positioning hole 32, thereby realizing the positioning of the mounting bracket 1 on the circuit board 3, reducing the difficulty of aligning the connecting hole 31 and the connecting post 15, facilitating the connection of the connector, and also ensuring the position of the contact switch 4 relative to the button assembly 2.

[0046] Furthermore, the mounting bracket 1 is provided with a mounting groove 17, and the button assembly 2 is disposed within the mounting groove 17. The mounting groove 17 reduces the overall space occupied by the button structure, facilitating miniaturization of the product design. Several button assemblies 2 and contact switches 4 are included, with the button assemblies 2 arranged sequentially at intervals along the length of the mounting groove 17. Each contact switch 4 corresponds one-to-one with a button assembly 2, thus enabling the button structure to activate multiple contact switches 4, meeting practical usage requirements.

[0047] This embodiment also provides an electronic device, including the button structure as described above. The mounting bracket 1 of the button structure can be installed on the electronic device. By using the button structure as described above, the electronic device achieves a high degree of integration and simplification of the button structure by utilizing the integral molding of the self-rotating shaft 22 and the button body 21 in the button structure, combined with the snap-fit ​​setting of the elastic slot 231 and the snap-fit ​​protrusion 121. This can reduce the difficulty of assembly and production and material costs, and avoid multiple parts being stacked and occupying internal space, thus facilitating the miniaturization design of the electronic device.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A button structure for pressing a contact switch on a circuit board, characterized in that, The button structure includes: Mounting bracket, which is disposed on the circuit board; A button assembly includes a button body and a rotating shaft integrally formed with the button body; the mounting bracket is provided with a shaft groove, the rotating shaft of the button body is embedded in the shaft groove, and the end of the button body away from the rotating shaft can press down the contact switch; the side of the button body near the rotating shaft is engaged with the mounting bracket.

2. The button structure according to claim 1, characterized in that, The distance between the groove walls at the opening of the shaft groove is greater than the diameter of the rotating shaft.

3. The button structure according to claim 2, characterized in that, The groove wall at the opening of the shaft groove is designed with an arc-shaped structure.

4. The button structure according to claim 1, characterized in that, The button body is provided with an elastic groove on the side near the rotating shaft and engaging with the mounting bracket. The mounting bracket is provided with a protrusion that engages with the elastic groove.

5. The button structure according to claim 4, characterized in that, The button assembly also includes an elastic arm integrally formed with the button body. The elastic arm has the elastic slot, the mounting bracket is provided with a mounting hole, and the wall of the mounting hole has the locking protrusion. The elastic arm can be inserted into the mounting hole so that the locking protrusion engages with the elastic slot.

6. The button structure according to claim 4, characterized in that, The button assembly also includes a snap fastener integrally formed with the button body. The snap fastener is located on the side away from the rotation axis. The mounting bracket is provided with a plug hole. The snap fastener is inserted into the plug hole and can be snapped onto the inner wall of the mounting bracket on the side away from the button body.

7. The button structure according to claim 1, characterized in that, The button assembly also includes a pressing post, which is disposed opposite to the contact switch.

8. The button structure according to any one of claims 1 to 7, characterized in that, The mounting bracket is provided with a mounting groove, and the button assembly is located in the mounting groove.

9. The button structure according to claim 8, characterized in that, Both the button assembly and the contact switch include a plurality of units. The plurality of button assemblies are arranged sequentially at intervals along the length direction of the mounting groove, and the plurality of contact switches correspond one-to-one with the plurality of button assemblies.

10. An electronic device, characterized in that, Includes the button structure as described in any one of claims 1 to 9.

Images