Key structure and electronic device

Abstract

The button structure provided by this invention includes: a housing, which is configured as a flat structure, with an internal accommodating space and an opening at one end communicating with the accommodating space; a button, one end of which extends into the accommodating space of the housing through the opening and is slidably connected to the housing, the other end of which is located on the outside of the housing; and an electromagnetic module, including an electromagnetic coil located in the accommodating space and a first magnet and a second magnet surrounding the electromagnetic coil. The electromagnetic coil is wound around one end of the button. The first magnet is located on one side of the flat structure along its length, and the second magnet is located on the other side of the flat structure along its length. The cross-sections of both the first and second magnets perpendicular to the displacement direction of the button are crescent-shaped, and the magnetization directions of both the first and second magnets are perpendicular to the displacement direction of the button. This invention proposes a flattened button structure scheme to achieve an ultra-thin button structure.

Description

Technical Field

[0001] This invention relates to the field of electronic product technology, specifically to a button structure and an electronic device. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Currently, home gaming devices and other electronic devices have incorporated various force feedback mechanisms into their game controllers to enhance interaction between the game content and the player. Existing force feedback mechanisms utilize a circular magnetic circuit structure. This requires the force feedback device to be designed as a single cylindrical shape, which occupies a significant amount of space and is not conducive to fully utilizing the overall device's footprint. Summary of the Invention

[0004] The objective of this invention is to at least solve one of the problems existing in the prior art, and this objective is achieved through the following technical solution:

[0005] A first aspect of the present invention provides a button structure, comprising: a housing, the housing being configured as a flat structure, an accommodating space being formed inside the housing, and an opening communicating with the accommodating space being provided at one end of the housing; a button, one end of which extends into the accommodating space of the housing through the opening and is slidably connected to the housing, the other end of which is located outside the housing; and an electromagnetic module, comprising an electromagnetic coil located in the accommodating space and a first magnet and a second magnet surrounding the electromagnetic coil, the electromagnetic coil being wound around one end of the button, the first magnet being disposed on one side of the flat structure along the length direction, the second magnet being disposed on the other side of the flat structure along the length direction, the cross-sections of the first magnet and the second magnet along the displacement direction perpendicular to the button being configured as crescent-shaped structures, and the magnetization directions of the first magnet and the second magnet being perpendicular to the displacement direction of the button.

[0006] In some embodiments, the first magnet and the second magnet are magnetized along the length of the shell of the flat structure, or the first magnet and the second magnet are magnetized along the radial direction of the electromagnetic coil.

[0007] In some embodiments, both sides of the housing along the length direction are provided with arc-shaped sides, and the first and second magnets with crescent-shaped structures are both configured to cooperate with the arc-shaped sides.

[0008] In some embodiments, the thickness of the middle part of the crescent-shaped structure is greater than the thickness of both ends, and both sides of the shell along the thickness direction are set as planar structures, with the ends of the two crescent-shaped structures spaced apart at the planar structures.

[0009] In some embodiments, the two poles of the first magnet are respectively distributed on the inner and outer arc surfaces of the crescent-shaped structure; and / or the two poles of the second magnet are respectively distributed on the inner and outer arc surfaces of the crescent-shaped structure, and the polarity of the first magnet is opposite to that of the second magnet.

[0010] In some embodiments, the first magnet and the second magnet are both configured as an integral structure, and the first magnet and the second magnet are respectively located at the same height.

[0011] In some embodiments, the first magnet and the second magnet are symmetrically distributed relative to the central axis of the electromagnetic coil.

[0012] In some embodiments, the other end of the housing opposite to the opening is provided with a mounting port communicating with the receiving space. The button structure also includes a guide post extending from the mounting port to the receiving space, and an elastic member connecting the button and the guide post.

[0013] In some embodiments, both sides of the housing along the thickness direction are configured as planar structures, and the planar structures are provided with notches communicating with the receiving space. The button structure also includes a third magnet disposed at the notch.

[0014] A second aspect of the present invention provides an electronic device comprising a button structure according to a first aspect of the present invention.

[0015] Those skilled in the art will understand that the present invention proposes a flat and ultra-thin design scheme for the button structure, and adapts the flat design scheme of the button structure by setting the magnets in the electromagnetic module as a split structure of the first magnet and the second magnet, so as to reduce the requirements of the button structure on the overall installation space.

[0016] Specifically, in order to enable the magnets in the electromagnetic module to adapt to the flat structure of the shell, the electromagnetic module proposed in the embodiments of this application only provides a first magnet and a second magnet on both sides along the length direction inside the shell, while no crescent-shaped magnet is provided along the thickness direction inside the shell, thereby reducing the impact of the electromagnetic module on the thickness of the shell. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0018] Figure 1 This is a schematic diagram of a button structure according to an embodiment of this application;

[0019] Figure 2 for Figure 1An axial sectional view of the button structure shown.

[0020] Figure 3 for Figure 1 A cross-sectional view of one embodiment of the button structure shown;

[0021] Figure 4 for Figure 1 A cross-sectional view of another embodiment of the button structure shown;

[0022] Figure 5 for Figure 1 The diagram shows the split structure of the button.

[0023] The accompanying figure is labeled as follows:

[0024] 100. Button structure;

[0025] 10. Shell; 11. Top cover; 111. Opening; 12. Base; 13. Arc-shaped side; 14. Planar structure; 141. Notch;

[0026] 20. Button; 21. Keycap; 22. Connecting post; 23. Sleeve;

[0027] 30. Elastic components;

[0028] 40. Electromagnetic module; 41. First magnet; 42. Second magnet; 43. Electromagnetic coil;

[0029] 50. Guide post; 51. Slip ring; 52. Sealing gasket;

[0030] 60. The third magnet. Detailed Implementation

[0031] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this disclosure and to fully convey the scope of this disclosure to those skilled in the art. It should be noted that the electronic device of this invention described using a game console is merely a preferred embodiment and is not intended to limit the scope of protection of the electronic device of this invention. For example, the electronic device of this invention can also be used in other human-computer interaction electronic devices such as VR devices and other electronic terminals, and such adjustments do not depart from the scope of protection of the electronic device of this invention.

[0032] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” and “having” are inclusive and therefore indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0033] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Furthermore, in the description of this invention, unless otherwise expressly specified and limited, the terms "set up" and "connected" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "top," "periphery," "outer periphery," "sidewall," "front," "rear," "end," etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation, in addition to those depicted in the figure. For example, if the mechanism in the figure is flipped, an element described as "below other elements or features" or "under other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0035] Existing home video game consoles and other electronic devices have incorporated various force feedback mechanisms into their game controllers to enhance interaction between the game content and the player. Current force feedback structures utilize a cylindrical magnetic structure to create the induction magnetic circuit. However, this cylindrical shape occupies a significant amount of space, hindering the optimization of the game console's overall design and particularly impeding the development of a flatter, more streamlined design.

[0036] For the issue of large space occupation by the overall cylindrical button structure, this invention proposes to set the button structure as a flat and ultra-thin structure, and to adapt to the flat design of the button structure by setting the magnetic components in the electromagnetic module as a split structure of the first magnetic component and the second magnetic component, thereby improving the space adaptability of the button structure.

[0037] like Figures 1 to 4 As shown, the button structure 100 provided in this embodiment includes a housing 10, a button 20, and an electromagnetic module 40. The housing 10 is configured as a flat structure, and an accommodating space is formed inside the housing 10. An opening 111 communicating with the accommodating space is provided at the end of the housing 10. One end of the button 20 extends into the accommodating space of the housing 10 through the opening 111 and is slidably connected to the housing 10. The other end of the button 20 is located outside the housing 10. The electromagnetic module 40 includes an electromagnetic coil 43 and a first magnet 41 and a second magnet 42 surrounding the electromagnetic coil 43. The electromagnetic coil 43 is wound around one end of the button 20. The first magnet 41 is disposed on one side of the flat structure along the length direction, and the second magnet 42 is disposed on the other side of the flat structure along the length direction. The cross-sections of the first magnet 41 and the second magnet 42 along the displacement direction perpendicular to the button 20 are both configured as crescent-shaped structures, and the magnetization directions of the first magnet 41 and the second magnet 42 are both perpendicular to the displacement direction of the button 20.

[0038] In this embodiment, the present invention adapts the flat and ultra-thin design of the button structure 100 by setting the magnets in the electromagnetic module 40 as a split structure of the first magnet 41 and the second magnet 42, thereby improving the spatial adaptability of the button structure 100. Specifically, the first magnet 41 and the second magnet 42 are respectively disposed on the crescent-shaped structures on both sides of the flat structure, thereby reducing the space occupied by the electromagnetic module 40 along the thickness direction of the button structure 100, so that the button structure 100 can achieve a flat design by reducing its thickness. Furthermore, by making the magnetization direction of the first magnet 41 and the second magnet 42 perpendicular to the displacement direction of the button 20, the first magnet 41 and the second magnet 42 located on both sides of the button 20 can apply a consistent electromagnetic force to the button 20.

[0039] Specifically, the housing 10 includes a flat cylindrical body and a top cover 11 disposed on the top of the cylindrical body. The top cover 11 has an opening 111, which is suitable for the key 20 to pass through. The key 20 includes a keycap 21 and a connecting post 22 standing at the bottom of the keycap 21. The bottom end of the connecting post 22 extends into the interior of the cylindrical body through the opening 111. The connecting post 22 is a hollow structure. A sleeve 23 is disposed inside the connecting post 22. An electromagnetic coil 43 is wound around the sleeve 23. During the downward sliding of the key 20, the keycap 21 drives the connecting post 22, the sleeve 23 and the electromagnetic coil 43 to slide up and down synchronously.

[0040] like Figure 2 As shown, when the electromagnetic coil 43 is energized, the energized electromagnetic coil 43 moves along the magnetic field lines that cut the first magnet 41 and the second magnet 42. The magnetic field lines of the first magnet 41 and the second magnet 42 apply a Lorentz force to the energized electromagnetic coil 43, thereby driving the electromagnetic coil 43 and the button 20 to move up and down. Figure 2 For example, when the electromagnetic coil 43 is energized, the magnetic field lines of the first magnet 41 and the second magnet 42 exert an upward electromagnetic force on the electromagnetic coil 43 and the button 20.

[0041] It should be noted that the embodiments of this application do not limit the specific direction of "the magnetization direction is perpendicular to the displacement direction of the button 20", because the magnetization direction can be along the length direction of the flat structure shell 10, or the first magnet 41 and the second magnet 42 can be magnetized radially along the electromagnetic coil 43, or the first magnet 41 and the second magnet 42 can be magnetized along the thickness direction of the flat structure shell 10. These embodiments are all within the protection scope of the embodiments of this application. The specific magnetization direction will be described below through specific embodiments.

[0042] like Figure 3 As shown, in some embodiments, the first magnet 41 and the second magnet 42 are magnetized along the length of the flat-structured housing 10, or, as... Figure 4 As shown, the first magnet 41 and the second magnet 42 are magnetized radially along the electromagnetic coil 43.

[0043] In this embodiment, to enable the first magnet 41 and the second magnet 42 to simultaneously apply Lorentz force (electromagnetic force) to the electromagnetic coil 43, the embodiments of this application propose that the first magnet 41 and the second magnet 42 be magnetized along the length direction of the flat structure housing 10, or along the radial direction of the electromagnetic coil 43. This allows the magnetic field lines generated by the first magnet 41 and the second magnet 42 to pass through the electromagnetic coil 43, applying an electromagnetic force to the electromagnetic coil 43. This electromagnetic force then pushes the electromagnetic coil 43 and the button 20 to move vertically (e.g., ...). Figure 2The button structure 100 is shown in its placement posture, and the displacement direction of button 20 is vertical.

[0044] Furthermore, since the electromagnetic coil 43 is cylindrical, setting the first magnet 41 and the second magnet 42 to be magnetized radially along the electromagnetic coil 43 can make the magnetic field lines generated by the first magnet 41 and the second magnet 42 distributed around the circumference of the electromagnetic coil 43, reducing the amount of magnetic leakage and improving the energy efficiency of the first magnet 41 and the second magnet 42.

[0045] like Figure 3 As shown, in some embodiments, both sides of the housing 10 along the length direction are provided with arc-shaped sides 13, and the first magnet 41 and the second magnet 42 with crescent-shaped structure are both provided to cooperate with the arc-shaped sides 13.

[0046] In this embodiment, both the crescent-shaped first magnet 41 and the second magnet 42 are configured to cooperate with the arc-shaped side 13. Specifically, the outer contour of the crescent-shaped first magnet 41 is configured as an arc-shaped structure that cooperates with one side of the arc-shaped side 13, and the outer contour of the crescent-shaped second magnet 42 is configured as an arc-shaped structure that cooperates with the other side of the arc-shaped side 13. By configuring both sides of the housing 10 along its length as arc-shaped side 13, and forming an arc-shaped receiving groove inside the housing 10, and then configuring the first magnet 41 and the second magnet 42 as arc-shaped structures that cooperate with the arc-shaped receiving groove, the first magnet 41 and the second magnet 42 can be maximized to surround the button 20 and the electromagnetic coil 43, thereby increasing the magnetic field range and magnetic force between the first magnet 41 and the second magnet 42 and the electromagnetic coil 43.

[0047] Meanwhile, setting both sides of the housing 10 along its length as arc-shaped sides 13 can also improve the overall aesthetics of the housing 10.

[0048] like Figure 3 As shown, in some embodiments, the thickness of the middle part of the crescent-shaped structure is greater than the thickness of both ends, and both sides of the shell 10 along the thickness direction are set as planar structures 14, with the ends of the two crescent-shaped structures distributed at the planar structures 14.

[0049] In this embodiment, since the housing 10 is only provided with arc-shaped sides 13 on both sides along the length direction, while the middle part of the housing 10 is still provided with a flat structure, the area between the arc-shaped sides 13 of the housing 10 forms a racetrack-shaped outline. Since the first magnet 41 and the second magnet 42 are both provided with crescent-shaped structures, the two ends of the first magnet 41 and the second magnet 42 extend towards the button 20 and surround the periphery of the button 20, while the middle part of the first magnet 41 and the second magnet 42 is recessed away from the button 20. In order to make the middle part of the first magnet 41 and the second magnet 42 also surround the periphery of the button 20, the embodiment of this application proposes to make the thickness of the middle part of the crescent-shaped structure greater than the thickness of the two ends, forming a crescent-shaped structure. The thickness of the middle part of the crescent-shaped structure is used to compensate for the recess of the middle part of the crescent-shaped structure away from the button 20.

[0050] In addition, in order to make the magnets in the electromagnetic module 40 adapt to the flat structure of the housing 10, the electromagnetic module 40 proposed in the embodiments of this application only provides a first magnet 41 and a second magnet 42 on both sides along the length direction inside the housing 10, while no crescent-shaped magnets are provided along the thickness direction inside the housing 10 (no crescent-shaped magnets are provided in the gap between the first magnet 41 and the second magnet 42), thereby reducing the influence of the electromagnetic module 40 on the thickness of the housing 10.

[0051] like Figure 3 As shown, in some embodiments, the two poles of the first magnet 41 are respectively distributed on the inner and outer arc surfaces of the crescent-shaped structure; and / or the two poles of the second magnet 42 are respectively distributed on the inner and outer arc surfaces of the crescent-shaped structure, and the polarity of the first magnet 41 is opposite to that of the second magnet 42.

[0052] In this embodiment, by distributing the two poles of the first magnet 41 to the inner and outer arc surfaces of the crescent-shaped structure, the magnetization direction of the first magnet 41 can be perpendicular to the displacement direction of the button 20. By distributing the two poles of the second permanent magnet 421 to the inner and outer arc surfaces of the crescent-shaped structure, the magnetization direction of the second magnet 42 can be perpendicular to the displacement direction of the button 20.

[0053] Furthermore, since the first magnet 41 and the second magnet 42 are distributed on opposite sides of the electromagnetic coil 43, in order to enable the first magnet 41 and the second magnet 42 to simultaneously apply Lorentz force to the electromagnetic coil 43, the embodiments of this application propose setting the polarity of the first magnet 41 to be opposite to that of the second magnet 42. That is, the magnetic pole direction of the first magnet 41 is set to be opposite to that of the magnetic pole direction of the second magnet 42. With this setting, the force direction of the two electromagnetic coils 43 with opposite currents located at the first magnet 41 and the second magnet 42 can be made consistent.

[0054] Specifically, since the electromagnetic coils 43 are circumferentially wound, the current directions of the relatively distributed electromagnetic coils 43 are opposite. According to the left-hand rule, in order to make the Lorentz forces borne by the relatively distributed electromagnetic coils 43 consistent, the embodiments of this application propose to set the polarity of the first magnet 41 to be opposite to the polarity of the second magnet 42, so as to cooperate with the relatively distributed electromagnetic coils 43 with opposite current directions and make the Lorentz forces borne by the relatively distributed electromagnetic coils 43 consistent.

[0055] like Figure 2 and Figure 5 As shown, in some embodiments, the first magnet 41 and the second magnet 42 are both configured as an integral structure, and the first magnet 41 and the second magnet 42 are at the same height.

[0056] In this embodiment, by setting both the first magnet 41 and the second magnet 42 as an integral structure, the number of parts in the button structure 100 can be reduced, and the assembly difficulty of the button structure 100 can be reduced.

[0057] In addition, by placing the first magnet 41 and the second magnet 42 at the same height, the balance of the electromagnetic force applied to the button 20 by the relatively arranged first magnet 41 and second magnet 42 can be improved, enabling the button 20 to move up and down stably and reducing the phenomenon of the button 20 shifting to one side when subjected to unbalanced electromagnetic forces.

[0058] like Figure 2 As shown, in some embodiments, the first magnet 41 and the second magnet 42 are symmetrically distributed relative to the central axis L of the electromagnetic coil 43.

[0059] In this embodiment, by setting the first magnet 41 to be symmetrically distributed with the second magnet 42 relative to the central axis L of the electromagnetic coil 43, the balance of the electromagnetic force applied by the relatively arranged first magnet 41 and second magnet 42 to the electromagnetic coil 43 can be improved, so that the electromagnetic coil 43 and the button 20 can slide up and down stably, and the phenomenon of the button 20 shifting to one side under the condition of being subjected to unbalanced electromagnetic force can be reduced.

[0060] like Figure 2 As shown, in some embodiments, the other end of the housing 10 opposite to the opening 111 is provided with a mounting port communicating with the receiving space. The button structure 100 also includes a guide post 50 extending from the mounting port to the receiving space, and an elastic member 30 connecting the button 20 and the guide post 50.

[0061] In this embodiment, the housing 10 includes a flat cylindrical section and a base 12 disposed at the bottom of the cylindrical section. The base 12 has an installation opening suitable for the guide post 50 to pass through. The inner wall of the base 12 is also provided with a sealing element, such as a foam gasket 52, to seal the gap between the installation opening and the guide post 50. The button 20 includes a keycap 21 and a connecting post 22 connected sequentially from top to bottom. The keycap 21 extends to the outside of the housing 10, and the connecting post 22 extends into the interior of the housing 10. The interior of the connecting post 22 is provided with a cavity. The sleeve 23 is fitted into the cavity of the connecting post 22, and the electromagnetic coil 43 is fitted onto the outside of the sleeve 23. The sleeve 23 is also configured as a cavity structure. The elastic element 30 includes a spring disposed inside the sleeve 23. The sleeve 23 can slide up and down relative to the guide post 50. The top of the guide post 50 is provided with a slip ring 51 that cooperates with the sleeve 23. During the process of sliding up and down relative to the guide post 50, the sleeve 23 comes into frictional contact with the slip ring 51, thereby reducing the smoothness of the sleeve 23 sliding up and down and reducing the phenomenon of the guide post 50 being damaged by friction.

[0062] When a user's finger presses the keycap 21 of button 20, button 20 causes the electromagnetic coil 43 to move downwards. When the electromagnetic coil 43 is not energized, the reaction force returned by button 20 to the finger is the compression force of the spring; for example... Figure 2 As shown, when the electromagnetic coil 43 is positively energized, the reaction force fed back to the finger by the button 20 is the spring compression force plus the electromagnetic driving force; when the electromagnetic coil 43 is negatively energized, the reaction force fed back to the finger by the button 20 is the spring compression force minus the electromagnetic driving force. The electromagnetic driving force is proportional to the magnitude of the driving current of the electromagnetic coil 43. By combining different PWM waveform control of the driving current, it is possible to achieve an arbitrary force curve output of the reaction force fed back to the finger by the button 20 within the range of spring compression force ± electromagnetic driving force.

[0063] like Figure 2 and Figure 5 As shown, in some embodiments, the housing 10 is configured with planar structures 14 on both sides along the thickness direction. The planar structures 14 are provided with notches 141 communicating with the receiving space. The button structure 100 also includes a third magnet 60 disposed at the notch 141.

[0064] In this embodiment, the third magnet 60 includes two side magnets disposed on both sides of the housing 10 along the thickness direction. The magnetic field lines formed by the two side magnets can also apply Lorentz force to the electromagnetic coil 43, thereby achieving the purpose of applying an upward electromagnetic force to the electromagnetic coil 43 and the button 20. Moreover, the two side magnets have little impact on the thickness of the housing 10, which is beneficial to the flat and ultra-thin design of the button structure 100. Specific Implementation

[0066] The button structure 100 of this application embodiment includes a vibrator assembly, a magnetic circuit, and a housing 10. The vibrator assembly includes an electromagnetic coil 43, a coil frame (sleeve 23), a compression spring (elastic element 30), and a button 20. The magnetic circuit includes a crescent magnet (first magnet 41 and second magnet 42), a side magnet (third magnet 60), and a guide post 50. The vibrator assembly and the magnetic circuit are connected by a compression spring. When the user presses the button 20, the vibrator assembly vibrates back and forth.

[0067] In addition, the crescent magnets, coil frame, and side magnets that are radially magnetized along the electromagnetic coil 43 are all made of magnetically conductive materials, forming a structure like... Figure 2 The magnetic field lines are shown in the diagram. The magnetic field lines pass through... Figure 2 The electromagnetic coil 43, with the current direction shown, can generate an electromagnetic driving force. Simultaneously, according to the right-hand screw rule, the electromagnetic coil 43 can form an electromagnet, and magnetic field lines passing through the electromagnet can also generate an electromagnetic driving force on the electromagnetic coil 43. Furthermore, the electromagnetic coil 43 is made of enameled wire, and its cross-section is not limited to circular, oval, or square shapes.

[0068] A second aspect of the present invention provides an electronic device comprising a button structure 100 according to a first aspect of the present invention.

[0069] In this embodiment, the electronic device includes a gaming device or a VR device, etc. The electronic device provided by this embodiment of the invention has at least the following technical effects: it realizes the flat design of the button structure 100, and reduces the installation space requirements of the button structure 100 through the flat design of the button structure 100.

[0070] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A key structure characterized by comprising: The button structure includes: The housing is configured as a flat structure, the interior of the housing forms an accommodating space, and the end of the housing is provided with an opening communicating with the accommodating space; A button, one end of which extends into the receiving space of the housing through the opening and is slidably connected to the housing, and the other end of which is located on the outside of the housing; An electromagnetic module includes an electromagnetic coil located in the accommodating space and a first magnet and a second magnet surrounding the electromagnetic coil. The electromagnetic coil is wound around one end of the button. The first magnet is disposed on one side of the flat structure along the length direction, and the second magnet is disposed on the other side of the flat structure along the length direction. The cross-sections of the first magnet and the second magnet along the displacement direction of the button are both set as crescent-shaped structures, and the magnetization directions of the first magnet and the second magnet are both perpendicular to the displacement direction of the button.

2. The key structure according to claim 1, wherein The first magnet and the second magnet are magnetized along the length of the flat structure of the housing, or the first magnet and the second magnet are magnetized along the radial direction of the electromagnetic coil.

3. The key structure according to claim 2, wherein Both sides of the shell along its length are provided with arc-shaped sides, and the first magnet and the second magnet with crescent-shaped structure are both provided to cooperate with the arc-shaped sides.

4. The key structure according to claim 3, wherein The thickness of the middle part of the crescent-shaped structure is greater than the thickness of both ends. Both sides of the shell along the thickness direction are set as planar structures, and the ends of the two crescent-shaped structures are spaced apart at the planar structures.

5. The key structure according to claim 3, wherein The two poles of the first magnet are respectively distributed on the inner and outer arc surfaces of the crescent-shaped structure; and / or the two poles of the second magnet are respectively distributed on the inner and outer arc surfaces of the crescent-shaped structure, and the polarity of the first magnet is opposite to that of the second magnet.

6. The key structure according to claim 1, wherein Both the first magnet and the second magnet are configured as a single unit, and the first magnet and the second magnet are at the same height.

7. The button structure according to claim 1, characterized in that, The first magnet and the second magnet are symmetrically distributed with respect to the central axis of the electromagnetic coil.

8. The button structure according to claim 1, characterized in that, The other end of the housing opposite to the opening is provided with a mounting port communicating with the receiving space. The button structure also includes a guide post extending from the mounting port to the receiving space, and an elastic member connecting the button and the guide post.

9. The button structure according to claim 1, characterized in that, Both sides of the housing along the thickness direction are set as planar structures, and the planar structures are provided with notches communicating with the receiving space. The button structure also includes a third magnet disposed at the notch.

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

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