Button Structure and Electronic Device

Abstract

The key structure provided by the present invention includes: a housing, which is set as a flat structure, an accommodation space is formed inside the housing, and an opening communicating with the accommodation space is provided at the end of the housing; a key, one end of the key extends into the accommodation space of the housing through the opening and is slidably connected to the housing, and the other end of the key is located outside the housing; an electromagnetic module, which includes an electromagnetic coil located in the accommodation space and a first magnetic component and a second magnetic component surrounding the periphery of the electromagnetic coil, the electromagnetic coil is wound around one end of the key, the first magnetic component is arranged on one side of the flat structure along the length direction, the second magnetic component is arranged on the other side of the flat structure along the length direction, the cross sections of the first magnetic component and the second magnetic component along the direction perpendicular to the displacement direction of the key are both set as crescent-shaped structures, both the first magnetic component and the second magnetic component include at least two permanent magnets, the permanent magnets are magnetized along the displacement direction of the key, and the magnetization directions of two adjacent permanent magnets along the direction perpendicular to the displacement direction of the key are opposite.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic products, and particularly relates to a key structure and an electronic device. Background Art

[0002] The information provided in this section is only background information related to the present disclosure, and it is not necessarily prior art.

[0003] Currently, electronic devices such as home game devices have added various force feedback devices to the game control handle devices to achieve the interaction effect between the game content and the player. The existing force feedback devices use a circular pair of magnets to set the magnetic circuit. The circular pair of magnets scheme requires the force feedback device to be set as an overall cylindrical outer shape structure. However, the overall cylindrical outer shape structure occupies a large space and is not conducive to making full use of the space of the whole machine. Summary of the Invention

[0004] The object of the present invention is to solve at least one of the problems existing in the above prior art, and this object is achieved by the following technical solutions:

[0005] A first aspect of the present invention provides a key structure, which includes: a housing, the housing is set as a flat structure, an accommodation space is formed inside the housing, and an opening communicating with the accommodation space is provided at an end of the housing; a key, one end of the key extends into the accommodation space of the housing through the opening and is slidably connected to the housing, and the other end of the key is located outside the housing; an electromagnetic module, including an electromagnetic coil located in the accommodation space and a first magnetic component and a second magnetic component surrounding the periphery of the electromagnetic coil, the electromagnetic coil is wound around one end of the key, the first magnetic component is arranged on one side of the flat structure along the length direction, the second magnetic component is arranged on the other side of the flat structure along the length direction, the cross-sections of the first magnetic component and the second magnetic component along the direction perpendicular to the displacement direction of the key are both set as crescent-shaped structures, both the first magnetic component and the second magnetic component include at least two permanent magnets, the permanent magnets are magnetized along the displacement direction of the key, and the magnetization directions of two adjacent permanent magnets along the direction perpendicular to the displacement direction of the key are opposite.

[0006] In some embodiments, both sides of the housing along the length direction are set as arc-shaped sides, and both the first magnetic component and the second magnetic component with crescent-shaped structures are set to cooperate with the arc-shaped sides.

[0007] In some embodiments, there is a gap between the first magnetic component and the second magnetic component. The first magnetic component includes two first permanent magnets distributed along the displacement direction of the key and a first magnetic yoke arranged between the two first permanent magnets; and / or the second magnetic component includes two second permanent magnets distributed along the displacement direction of the key and a second magnetic yoke arranged between the two second permanent magnets.

[0008] In some embodiments, the two poles of the first permanent magnet are distributed to both ends of the first permanent magnet along the displacement direction of the button, and the magnetic pole directions of the two first permanent magnets are opposite; and / or the two poles of the second permanent magnet are distributed to both ends of the second permanent magnet along the displacement direction of the button, and the magnetic pole distributions of the two second permanent magnets are the same as those of the two first permanent magnets.

[0009] In some embodiments, the first permanent magnet, the first yoke, the second permanent magnet, and the second yoke are all arranged in a crescent structure, and the thickness of the middle part of the crescent structure is greater than that of both ends.

[0010] In some embodiments, the two first permanent magnets are respectively at the same height position as the two second permanent magnets, and / or the first yoke and the second yoke are at the same height position.

[0011] In some embodiments, the two first permanent magnets are symmetrically distributed with respect to the central axis of the electromagnetic coil respectively, and / or the first yoke and the second yoke are symmetrically distributed with respect to the central axis of the electromagnetic coil.

[0012] In some embodiments, at the other end of the housing opposite to the opening, there is an installation opening communicating with the accommodation space. The button structure further includes a guiding column extending from the installation opening to the accommodation space, and an elastic member connected between the button and the guiding column.

[0013] In some embodiments, both sides of the housing in the thickness direction are arranged as flat structures. The flat structures are provided with openings communicating with the accommodation space, and the button structure further includes a third magnetic component arranged at the openings.

[0014] The second aspect of the present invention provides an electronic device, and the electronic device includes the button structure according to the first aspect of the present invention.

[0015] Those skilled in the art can understand that the present invention proposes a flat and ultra-thin design scheme for the button structure, and adapts to the flat design scheme of the button structure by setting the magnetic components in the electromagnetic module as a split-type first magnetic component and a second magnetic component, so as to reduce the requirement of the button structure for the installation space of the whole machine.

[0016] Specifically, in order to enable the magnetic components in the electromagnetic module to adapt to the flat housing, the electromagnetic module proposed in the embodiments of the present application only arranges the first magnetic component and the second magnetic component on both sides of the housing in the length direction inside the housing, and does not arrange a magnetic component with a crescent structure in the thickness direction inside the housing, thereby reducing the influence of the electromagnetic module on the thickness of the housing. Description of the Drawings

[0017] Upon reading the following detailed description of the preferred embodiments, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0018] Figure 1 is a schematic structural diagram of a key structure according to an embodiment of the present application;

[0019] Figure 2 is Figure 1 an axial sectional view of the key structure shown;

[0020] Figure 3 is Figure 2 a cross-sectional view of the key structure shown;

[0021] Figure 4 is Figure 1 a schematic exploded view of the key structure shown.

[0022] Among them, the reference numerals are as follows:

[0023] 100, key structure;

[0024] 10, housing; 101, opening; 11, arc-shaped side; 12, planar structure; 121, notch;

[0025] 20, key; 21, keycap; 22, connecting column; 23, sleeve;

[0026] 30, elastic member;

[0027] 40, electromagnetic module; 41, first magnetic assembly; 411, first permanent magnet; 412, first magnetic yoke; 42, second magnetic assembly; 421, second permanent magnet; 422, second magnetic yoke; 43, electromagnetic coil;

[0028] 50, base; 51, guide post;

[0029] 60, third magnetic assembly. Detailed Embodiments

[0030] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that the electronic device of the present invention described by the gaming machine is only a preferred embodiment and does not limit the protection scope of the electronic device of the present invention. For example, the electronic device of the present 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 deviate from the protection scope of the electronic device of the present invention.

[0031] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" as used herein may also include the plural forms. The terms "comprising", "including" and "having" are inclusive and therefore specify the presence of the stated features, elements and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0032] Although the terms first, second, etc. may be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be used only to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in the text. In addition, in the description of the present invention, unless otherwise clearly specified and defined, the terms "arranged", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] For ease of description, spatial relative relation terms may be used in the text to describe the relationship of one element or feature shown in the figure with respect to another element or feature. These relative relation terms are, for example, "inner", "top", "periphery", "outer periphery", "side wall", "front", "rear", "end", etc. Such spatial relative relation terms are intended to include different orientations of the mechanism during use or operation in addition to the orientations depicted in the figure. For example, if the mechanism in the figure is flipped, then an element described as "under" or "beneath" other elements or features will subsequently be oriented as "above" or "over" the other elements or features. Thus, the exemplary term "under" can include both the upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relation descriptors used in the text are interpreted accordingly.

[0034] Existing electronic devices such as home game consoles have added various force feedback devices to the game control handle device to achieve the interaction effect between the game content and the player. The existing force feedback structure scheme uses an integral cylindrical pair of magnetic structures to set up an induction magnetic circuit. However, the force feedback structure with an integral cylindrical outer shape occupies a large amount of space, which is not conducive to the optimization of the overall space of the game console, especially not conducive to the overall flat development of the game console.

[0035] In view of the large space occupied by the button structure with an integral cylindrical outer shape in the present invention, a solution is proposed 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 first magnetic component and a second magnetic component, thereby improving the space adaptability of the button structure.

[0036] Such as Figures 1 to 4As shown in the figure, the key structure 100 provided by the embodiment of the present application includes a housing 10, a key 20, and an electromagnetic module 40. The housing 10 is set as a flat structure. An accommodation space is formed inside the housing 10. An opening 101 communicating with the accommodation space is provided at an end of the housing 10. One end of the key 20 extends into the accommodation space of the housing 10 through the opening 101 and is slidably connected to the housing 10. The other end of the key 20 is located outside the housing 10. The electromagnetic module 40 includes an electromagnetic coil 43, a first magnetic component 41, and a second magnetic component 42 surrounding the periphery of the electromagnetic coil 43. The electromagnetic coil 43 is wound around one end of the key 20. The first magnetic component 41 is provided on one side of the flat structure along the length direction, and the second magnetic component 42 is provided on the other side of the flat structure along the length direction. The cross-sections of the first magnetic component 41 and the second magnetic component 42 along the direction perpendicular to the displacement direction of the key 20 are both set as crescent-shaped structures. The first magnetic component 41 and the second magnetic component 42 both include at least two permanent magnets (the first magnetic component 41 includes two first permanent magnets 411, and the second magnetic component 42 includes two second permanent magnets 421). The permanent magnets are magnetized along the displacement direction of the key 20, and the magnetization directions of two adjacent permanent magnets along the direction perpendicular to the displacement direction of the key 20 are opposite.

[0037] In this embodiment, for the flat and ultra-thin design solution of the key structure 100 of the present invention, by setting the magnetic components in the electromagnetic module 40 as the split-type first magnetic component 41 and second magnetic component 42 to adapt to the flat design solution of the key structure 100, the space adaptability of the key structure 100 is improved. Specifically, the first magnetic component 41 and the second magnetic component 42 are respectively provided with crescent-shaped structures on both sides of the flat structure, thereby reducing the space occupied by the electromagnetic module 40 in the thickness direction of the key structure 100, enabling the key structure 100 to achieve a flat design by reducing the thickness, and by setting the magnetization directions of two adjacent permanent magnets along the direction perpendicular to the displacement direction of the key 20 to be opposite, the permanent magnets located at the top of the key 20 and the permanent magnets located at the bottom of the key 20 can apply electromagnetic forces in the same direction to the key 20.

[0038] Specifically, the housing 10 includes a cylindrical part of the flat structure and a cover part provided at the top of the cylindrical part. The cover part is provided with an opening 101, and the opening 101 is suitable for the key 20 to pass through. The key 20 includes a keycap 21 and a connecting column 22 standing upright at the bottom of the keycap 21. The bottom end of the connecting column 22 extends into the interior of the cylindrical part through the opening 101. The connecting column 22 is set as a hollow structure, and a sleeve 23 is provided inside the connecting column 22. The electromagnetic coil 43 is wound around the sleeve 23. During the up and down sliding process of the key 20, the keycap 21 drives the connecting column 22, the sleeve 23, and the electromagnetic coil 43 to slide up and down synchronously.

[0039] As Figure 2As shown, after the electromagnetic coil 43 is energized, the energized electromagnetic coil 43 moves along the direction of cutting the magnetic induction lines of the first magnetic component 41 and the second magnetic component 42. The magnetic induction lines of the first magnetic component 41 and the second magnetic component 42 exert a Lorentz force on the energized electromagnetic coil 43, thereby driving the electromagnetic coil 43 and the key 20 to move up and down, so as to Figure 2 For example, after the electromagnetic coil 43 is energized, the magnetic induction lines of the first magnetic component 41 and the second magnetic component 42 exert an upward electromagnetic force on the electromagnetic coil 43 and the key 20.

[0040] Such as Figure 3 As shown, in some embodiments, both sides of the housing 10 in the length direction are provided with arc-shaped side edges 11, and the first magnetic component 41 and the second magnetic component 42 with a crescent-shaped structure are arranged to cooperate with the arc-shaped side edges 11.

[0041] In this embodiment, the first magnetic component 41 and the second magnetic component 42 with a crescent-shaped structure are arranged to cooperate with the arc-shaped side edges 11. Specifically, the outer peripheral edge contour of the first magnetic component 41 with a crescent-shaped structure is arranged as an arc-shaped structure that cooperates with one side of the arc-shaped side edge 11, and the outer peripheral edge contour of the second magnetic component 42 with a crescent-shaped structure is arranged as an arc-shaped structure that cooperates with the other side of the arc-shaped side edge 11. By arranging both sides of the housing 10 in the length direction as arc-shaped side edges 11, the arc-shaped side edges 11 enclose an arc-shaped accommodation groove inside the housing 10, and then the first magnetic component 41 and the second magnetic component 42 are arranged as a crescent-shaped structure that cooperates with the arc-shaped accommodation groove, so that the first magnetic component 41 and the second magnetic component 42 can be arranged around the key 20 and the electromagnetic coil 43 to the maximum extent, improving the magnetic field range and magnetic force between the first magnetic component 41 and the second magnetic component 42 and the electromagnetic coil 43.

[0042] At the same time, arranging both sides of the housing 10 in the length direction as arc-shaped side edges 11 can also improve the overall aesthetics of the housing 10.

[0043] Such as Figure 2 and Figure 4 As shown, in some embodiments, there is a gap between the first magnetic component 41 and the second magnetic component 42. The first magnetic component 41 includes two first permanent magnets 411 distributed along the displacement direction of the key 20 and a first magnetic yoke 412 arranged between the two first permanent magnets 411; and / or the second magnetic component 42 includes two second permanent magnets 421 distributed along the displacement direction of the key 20 and a second magnetic yoke 422 arranged between the two second permanent magnets 421.

[0044] In this embodiment, in order to enable the magnetic components (the first magnetic component 41 and the second magnetic component 42) in the electromagnetic module 40 to adapt to the flat structure of the housing 10, the electromagnetic module 40 proposed in the embodiment of the present application only arranges the first magnetic component 41 and the second magnetic component 42 on both sides along the length direction inside the housing 10, and no magnetic component with a crescent structure is arranged along the thickness direction inside the housing 10 (no magnetic component with a crescent structure is arranged in the gap between the first magnetic component 41 and the second magnetic component 42), so as to reduce the influence of the electromagnetic module 40 on the thickness of the housing 10.

[0045] It should be noted that the first magnetic component 41 includes two first permanent magnets 411 and the second magnetic component 42 includes two second permanent magnets 421 are only preferred embodiments of the present application, and are not a limitation on the number of permanent magnets in the magnetic component. For example, when the displacement stroke of the button 20 is relatively long, the first magnetic component 41 can also include three or four first permanent magnets 411 and the second magnetic component 42 can include three or four second permanent magnets 421. Such an adjustment also belongs to the protection scope of the present invention.

[0046] As Figure 2 and Figure 4 shown, taking the first magnetic component 41 including two first permanent magnets 411 and the second magnetic component 42 including two second permanent magnets 421 as an example, when the button 20 drives the electromagnetic coil 43 to move up and down in the housing 10 (such as Figure 2 the placement posture of the button structure 100 shown, and the displacement direction of the button 20 is the up and down direction displacement), during the process, when the electromagnetic coil 43 is energized and the electromagnetic coil 43 is located at the top of the housing 10, an electromagnetic force is applied to the electromagnetic coil 43 and the button 20 through the upper first permanent magnet 411 in the first magnetic component 41 and the upper second permanent magnet 421 in the second magnetic component 42; when the electromagnetic coil 43 is located at the bottom of the housing 10, an electromagnetic force is applied to the electromagnetic coil 43 and the button 20 through the lower first permanent magnet 411 in the first magnetic component 41 and the lower second permanent magnet 421 in the second magnetic component 42. The embodiment of the present application can apply an effective electromagnetic force to the electromagnetic coil 43 during the whole process of movement of the electromagnetic coil 43 through the first permanent magnets 411 and the second permanent magnets 421 distributed up and down.

[0047] At the same time, in order to reduce the phenomenon that the magnetic induction lines inside the two first permanent magnets 411 distributed up and down interfere with each other, the embodiment of the present application proposes to set the first magnetic component 41 to include a first magnetic yoke 412 and two first permanent magnets 411 distributed up and down, and arrange the first magnetic yoke 412 between the two first permanent magnets 411. The first magnetic yoke 412 blocks the magnetic induction lines between the two first permanent magnets 411, and then guides the magnetic induction lines of the two first permanent magnets 411 to the position of the electromagnetic coil 43. As Figure 2As shown, the first permanent magnet 411 located above forms magnetic induction lines distributed counterclockwise, the first permanent magnet 411 located below forms magnetic induction lines distributed clockwise, the second permanent magnet 421 located above forms magnetic induction lines distributed clockwise, and the first permanent magnet 411 located below forms magnetic induction lines distributed counterclockwise.

[0048] Similarly, an embodiment of the present application also proposes to set the second magnetic component 42 to include a second magnetic yoke 422 and two second permanent magnets 421 distributed up and down, and to dispose the second magnetic yoke 422 between the two second permanent magnets 421.

[0049] As Figure 2 shown, in some embodiments, the two poles of the first permanent magnet 411 are distributed to both ends of the first permanent magnet 411 along the displacement direction of the key 20, and the magnetic pole directions of the two first permanent magnets 411 are opposite; and / or the two poles of the second permanent magnet 421 are distributed to both ends of the second permanent magnet 421 along the displacement direction of the key 20, and the magnetic pole distributions of the two second permanent magnets 421 are the same as those of the two first permanent magnets 411.

[0050] In this embodiment, by distributing the two poles of the first permanent magnet 411 to both ends of the first permanent magnet 411 along the displacement direction of the key 20, the first permanent magnet 411 can be magnetized along the displacement direction of the key 20. By distributing the two poles of the second permanent magnet 421 to both ends of the second permanent magnet 421 along the displacement direction of the key 20, the second permanent magnet 421 can be magnetized along the displacement direction of the key 20. In addition, in order to enable the first magnetic component 41 to exert a Lorentz force on the electromagnetic coil 43 at the first magnetic yoke 412 located in the middle, an embodiment of the present application proposes to set the magnetic pole directions of the two first permanent magnets 411 to be opposite, as Figure 2 shown in the placement posture of the key structure 100. With such a setting, the magnetic induction lines of the first permanent magnet 411 located above can flow to the electromagnetic coil 43 at the bottom of the first permanent magnet 411 located above, and the magnetic induction lines of the first permanent magnet 411 located below can flow to the electromagnetic coil 43 at the top of the first permanent magnet 411 located below.

[0051] Similarly, in order to enable the second magnetic component 42 to exert a Lorentz force on the electromagnetic coil 43 at the second magnetic yoke 422 located in the middle, it is proposed to set the magnetic pole directions of the two second permanent magnets 421 to be opposite, as Figure 2 shown in the placement posture of the key structure 100. With such a setting, the magnetic induction lines of the second permanent magnet 421 located above can flow to the electromagnetic coil 43 at the bottom of the second permanent magnet 421 located above, and the magnetic induction lines of the second permanent magnet 421 located below can flow to the electromagnetic coil 43 at the top of the second permanent magnet 421 located below.

[0052] AsFigures 1 to 4 As shown, in some embodiments, the first permanent magnet 411, the first yoke 412, the second permanent magnet 421, and the second yoke 422 are all arranged in a crescent structure, and the thickness of the middle part of the crescent structure is greater than that of both ends.

[0053] In this embodiment, since the housing 10 is only provided with arc-shaped side edges 11 on both sides in the length direction, and the middle part of the housing 10 is still provided with a flat structure, the housing 10 of this structure makes the area between the two arc-shaped side edges 11 form a raceway circular contour. Since the first permanent magnet 411, the first yoke 412, the second permanent magnet 421, and the second yoke 422 are all arranged in a crescent structure, therefore, both ends of the first permanent magnet 411, the first yoke 412, the second permanent magnet 421, and the second yoke 422 extend towards the direction of the button 20 and surround the periphery of the button 20, while the middle parts of the first permanent magnet 411, the first yoke 412, the second permanent magnet 421, and the second yoke 422 are recessed in the direction away from the button 20. In order to enable the middle parts of the first permanent magnet 411, the first yoke 412, the second permanent magnet 421, and the second yoke 422 to also surround the periphery of the button 20, the embodiment of the present application proposes that the thickness of the middle part of the arc-shaped structure is greater than that of both ends, forming a crescent structure, and making up for the depression of the middle part of the crescent structure in the direction away from the button 20 through the thickness of the middle part of the crescent structure.

[0054] As Figure 2 shown, in some embodiments, the two first permanent magnets 411 are respectively at the same height position as the two second permanent magnets 421, and / or the first yoke 412 and the second yoke 422 are at the same height position.

[0055] In this embodiment, by making the two first permanent magnets 411 respectively at the same height position as the two second permanent magnets 421, the balance of the electromagnetic force exerted on the button 20 by the relatively arranged first permanent magnet 411 and second permanent magnet 421 can be improved, enabling the button 20 to move up and down stably, and reducing the phenomenon that the button 20 deviates to one side under the condition of uneven electromagnetic force.

[0056] As Figure 2 shown, in some embodiments, the two first permanent magnets 411 are symmetrically distributed with respect to the central axis L of the electromagnetic coil 43 respectively with the two second permanent magnets 421, and / or the first yoke 412 and the second yoke 422 are symmetrically distributed with respect to the central axis L of the electromagnetic coil 43.

[0057] In this embodiment, by symmetrically distributing the two first permanent magnets 411 relative to the central axis L of the electromagnetic coil 43 with respect to the two second permanent magnets 421 respectively, the balance of the electromagnetic force exerted on the electromagnetic coil 43 by the relatively arranged first permanent magnet 411 and second permanent magnet 421 can be improved, enabling the button 20 to move up and down stably and reducing the phenomenon that the button 20 deflects to one side under the condition of uneven electromagnetic force.

[0058] As Figures 1 to 4 shown, in some embodiments, at the other end of the housing 10 opposite to the opening 101, there is an installation opening communicating with the accommodation space. The button structure 100 further includes a guiding post 51 extending from the installation opening to the accommodation space, and an elastic member 30 connected between the button 20 and the guiding post 51.

[0059] In this embodiment, the housing 10 includes a cylindrical part with a flat structure and a base 50 provided at the bottom of the cylindrical part. The base 50 is provided with the guiding post 51, and a sealing member, such as a foam gasket, for sealing the gap between the installation opening and the guiding post 51 is further provided on the inner wall of the base 50. The button 20 includes a keycap 21 and a connecting column 22 connected in sequence from top to bottom. The keycap 21 extends to the outside of the housing 10, and the connecting column 22 extends into the interior of the housing 10. A cavity is provided inside the connecting column 22. A sleeve 23 is sleeved on the cavity of the connecting column 22, and the electromagnetic coil 43 is sleeved outside the sleeve 23. The sleeve 23 is also provided as a cavity structure. The elastic member 30 includes a spring provided inside the sleeve 23. The sleeve 23 can slide up and down relative to the guiding post 51. A sliding ring cooperating with the sleeve 23 is provided at the top of the guiding post 51. The sleeve 23 is in frictional contact with the sliding ring during the process of sliding up and down relative to the guiding post 51, thereby reducing the smoothness of the sleeve 23 sliding up and down and reducing the phenomenon that the guiding post 51 is damaged by friction..

[0060] When the user's finger presses the keycap 21 of the button 20, the button 20 drives the electromagnetic coil 43 to move downward. When the electromagnetic coil 43 is not powered on, the reaction force feedback from the button 20 to the finger is the compression force of the spring; As Figure 2 shown, when the electromagnetic coil 43 is powered on in the positive direction, the reaction force feedback from the button 20 to the finger is the compression force of the spring + the electromagnetic driving force; when the electromagnetic coil 43 is powered on in the negative direction, the reaction force feedback from the button 20 to the finger is the compression force of the spring - the electromagnetic driving force. The electromagnetic driving force is proportional to the magnitude of the driving current of the electromagnetic coil 43. Combining different PWM waveforms of the driving current control, any force curve output within the range of the compression force of the spring ± the electromagnetic driving force can be realized for the reaction force feedback from the button 20 to the finger.

[0061] As Figure 2 and Figure 4As shown, in some embodiments, both sides of the shell 10 along the thickness direction are set as a planar structure 12, the planar structure 12 is provided with a notch 121 connected to the accommodating space, and the button structure 100 also includes a third magnetic component 60 arranged at the notch 121.

[0062] In this embodiment, the third magnetic component 60 includes two side magnets arranged on both sides of the shell 10 along the thickness direction. The magnetic lines of force formed by the two side magnets can also exert a Lorentz force on the electromagnetic coil 43, thereby achieving the purpose of exerting an upward electromagnetic force on the electromagnetic coil 43 and the button 20. Moreover, the two side magnets have little effect on the thickness of the shell 10, which is conducive to the flat and ultra-thin design of the button structure 100. Specific embodiments

[0064] The key structure 100 of the present embodiment includes a vibrator assembly, a magnetic circuit assembly, and a housing 10. The vibrator assembly includes an electromagnetic coil 43, a coil bobbin (sleeve 23), a compression spring (elastic member 30), and a key 20. The magnetic circuit assembly includes a crescent magnet (a first magnetic assembly 41 and a second magnetic assembly 42), a side magnet (a third magnetic assembly 60), a washer (a first magnetic yoke 412 and a second magnetic yoke 422), and a T-iron (a base 50 and a guide post 51). The vibrator assembly and the magnetic circuit assembly are connected by a compression spring, and the user presses the key 20 to achieve the reciprocating vibration effect of the vibrator assembly.

[0065] In addition, the crescent magnets, coil frames and T-irons magnetized in opposite directions along the height of the key structure 100 are all made of magnetic conductive materials, forming a Figure 2 The magnetic flux lines are oriented as shown in the figure. The magnetic flux lines pass through Figure 2 The electromagnetic coil 43 can generate an electromagnetic driving force in the direction of the current shown. Furthermore, according to the right-hand screw rule, the electromagnetic coil 43 can form an electromagnet. The magnetic flux lines passing through the electromagnet can also generate an electromagnetic driving force on the electromagnetic coil 43. Furthermore, the electromagnetic coil 43 is configured as an enameled wire, and the cross-section of the electromagnetic coil 43 is not limited to circular, oblate, or square.

[0066] A second aspect of the present invention provides an electronic device, which includes the key structure 100 according to the first aspect of the present invention.

[0067] In this embodiment, the electronic device includes a gaming device or a VR device, etc. The electronic device provided by the embodiment of the present invention has at least the following technical effects: realizing a flat design of the key structure 100, and reducing the requirements of the key structure 100 for the installation space through the flat design of the key structure 100.

[0068] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims described above.

Claims

1. A key structure, characterized in that, The key structure includes: a housing, which is set as a flat structure, an accommodation space is formed inside the housing, and an opening communicating with the accommodation space is provided at an end of the housing; a key, one end of the key extends into the accommodation space of the housing through the opening and is slidably connected to the housing, and the other end of the key is located outside the housing; an electromagnetic module, including an electromagnetic coil located in the accommodation space and a first magnetic assembly and a second magnetic assembly surrounding the periphery of the electromagnetic coil. The electromagnetic coil is wound around the one end of the key. The first magnetic assembly is arranged on one side of the flat structure along the length direction, and the second magnetic assembly is arranged on the other side of the flat structure along the length direction. The cross-sections of the first magnetic assembly and the second magnetic assembly along the direction perpendicular to the displacement direction of the key are both set as crescent structures. The first magnetic assembly and the second magnetic assembly both include at least two permanent magnets. The permanent magnets are magnetized along the displacement direction of the key, and the magnetization directions of two adjacent permanent magnets along the direction perpendicular to the displacement direction of the key are opposite.

2. The key structure according to claim 1, wherein Both sides of the housing along the length direction are set as arc-shaped sides, and the first magnetic assembly and the second magnetic assembly with crescent structures are both set to cooperate with the arc-shaped sides.

3. The key structure according to claim 2, characterized in that, There is a gap distribution between the first magnetic assembly and the second magnetic assembly. The first magnetic assembly includes two first permanent magnets distributed along the displacement direction of the key and a first magnetic yoke arranged between the two first permanent magnets; and / or the second magnetic assembly includes two second permanent magnets distributed along the displacement direction of the key and a second magnetic yoke arranged between the two second permanent magnets.

4. The key structure according to claim 3, wherein The two poles of the first permanent magnet are distributed to both ends of the first permanent magnet along the displacement direction of the key, and the magnetic pole directions of the two first permanent magnets are opposite; and / or the two poles of the second permanent magnet are distributed to both ends of the second permanent magnet along the displacement direction of the key, and the magnetic pole distribution of the two second permanent magnets is the same as that of the two first permanent magnets.

5. The key structure according to claim 3, wherein The first permanent magnet, the first magnetic yoke, the second permanent magnet and the second magnetic yoke are all set as the crescent structures, and the thickness of the middle part of the crescent structure is greater than that of both ends.

6. The key structure according to claim 3, characterized in that, The two first permanent magnets are respectively at the same height position as the two second permanent magnets, and / or the first magnetic yoke and the second magnetic yoke are at the same height position.

7. The key structure according to claim 3, characterized in that, The two first permanent magnets are symmetrically distributed relative to the central axis of the electromagnetic coil with the two second permanent magnets, and / or the first magnetic yoke and the second magnetic yoke are symmetrically distributed relative to the central axis of the electromagnetic coil.

8. The key structure according to claim 1, wherein At the other end of the housing opposite to the opening, an installation opening communicating with the accommodation space is provided. The key structure further includes a guide post extending from the installation opening to the accommodation space and an elastic member connected between the key and the guide post.

9. The key structure according to claim 1, wherein, Both sides of the housing along the thickness direction are set as flat structures, the flat structures are provided with notches communicating with the accommodation space, and the key structure further includes a third magnetic assembly arranged at the notches.

10. An electronic device, characterized in that, The electronic device includes the key structure according to any one of claims 1 to 9.

Images