Key structure and terminal device

Abstract

The present disclosure relates to a key structure and a terminal device. The key structure comprises a housing, a key switch installed on the housing, used for electrically conducting when pressed, and triggering a target key function through the electrical conduction; a magnetic component installed on the housing at a different position from the key switch; wherein the magnetic component comprises a first magnet, used for magnetically attracting a second magnet in the terminal device, and assembling the key structure on the terminal device through the magnetic attraction. The present disclosure can flexibly assemble the key structure on the external terminal device by setting the magnetic attraction component in the key structure.

Description

Technical Field

[0001] This disclosure relates to the field of button technology, and in particular to a button structure and terminal device. Background Technology

[0002] With the intelligent development of science and technology, intelligent touch screens are now used in many applications, such as control screens for standing air conditioners / refrigerators, vehicle central control screens, and touch screens in monitoring rooms. These touch screens offer numerous virtual buttons with adjustable styles, making them suitable for most usage scenarios.

[0003] As display interface functions become increasingly diverse, it is becoming more and more difficult for users to find the virtual function buttons they need with one click from the screen menu. For example, for in-vehicle hollow screens, frequent operation of the large screen while driving can easily lead to accidental touches and may also pose safety hazards. Therefore, in some usage scenarios, physical buttons are still the choice with lower learning costs, less possibility of accidental touches, and greater convenience for users.

[0004] Physical buttons are usually fixed to external terminal devices using adhesive backing, which can cause some surface damage to the terminal device and produce adhesive residue that is difficult to clean; in addition, the flexibility of adhesive backing is also limited, affecting the user experience. Utility Model Content

[0005] To overcome the problems existing in related technologies, this disclosure provides a button structure and a terminal device. By incorporating a magnetic component into the button structure, this disclosure enables the button structure to be flexibly mounted onto an external terminal device.

[0006] According to a first aspect of the present disclosure, a button structure is provided, the button structure comprising:

[0007] case;

[0008] A push-button switch, installed in the housing, is used to generate electrical conduction when pressure is applied, and to trigger the target button function through the electrical conduction;

[0009] Magnetic components are mounted at different locations on the housing, along with the push-button switch.

[0010] The magnetic component includes a first magnet, which is used to magnetically attract a second magnet in the terminal device, and to assemble the button structure into the terminal device through the magnetic attraction.

[0011] Thus, the button structure provided in this disclosure incorporates a magnetic component, enabling flexible assembly of the button structure onto external terminal devices. Furthermore, compared to button structures that are bonded to terminal devices with adhesive backing, there is no need to clean residual adhesive, thus mitigating the problem of adhesive backing causing surface damage to the assembly surface of the terminal device.

[0012] In some alternative embodiments, the housing includes a bottom shell and a cylindrical outer shell;

[0013] The outer shell is assembled onto the bottom shell;

[0014] The push-button switch is assembled within the cylindrical space enclosed by the outer shell and is opposite to the bottom shell in the pressure direction of the push-button switch;

[0015] The magnetic component is located between the push-button switch and the bottom shell, and is assembled on the bottom shell.

[0016] Thus, in this disclosure, the magnetic component is positioned in the pressure direction of the push button switch, so that the direction of the pressing force is consistent with the direction of the magnetic attraction force, ensuring the assembly stability of the push button structure in the terminal device.

[0017] In some alternative embodiments, both the outer shell and the bottom shell are made of plastic; the magnetic component is adhesively attached to the bottom shell.

[0018] Thus, by setting the outer shell and the outer shell to be made of plastic, the present invention can save costs and improve the portability of the button structure; while setting the magnetic component to be bonded to the bottom shell can achieve more stable and effective magnetic adsorption.

[0019] In some optional embodiments, the inner wall of the outer casing protrudes inward to form a support platform, the support platform being distributed circumferentially along the inner wall of the outer casing and enclosing a first hollow region; the push-button switch is partially located in the first hollow region;

[0020] The button structure also includes:

[0021] A silicone layer is disposed on the side of the push-button switch opposite to the bottom shell and covers the push-button switch;

[0022] A sealant is disposed between the end of the silicone layer facing the inner wall of the housing and the support platform, for bonding and sealing the silicone layer and the support platform.

[0023] In this way, the silicone layer can effectively seal the button switch, thereby protecting the internal electrical components of the button structure from dust and water.

[0024] In some optional embodiments, the button structure further includes:

[0025] A keycap assembly, located on the side of the silicone layer opposite to the bottom shell, includes a press-on keycap and a first support frame;

[0026] The first support frame is located within the cylindrical space and is movably mounted on the inner wall of the outer shell;

[0027] The keycap is fixedly installed on the first support frame; the pressing surface of the keycap is exposed outward through the top opening of the cylindrical space.

[0028] When the keycap is pressed, the first support frame moves on the outer shell, and the keycap and the silicone layer move synchronously in the pressure direction to squeeze the key switch.

[0029] In this way, the keycap assembly can provide an effective pressing position, ensuring that the key structure provides the same pressing experience as a physical key.

[0030] In some alternative embodiments, the first support frame is folded outward in the direction toward the inner wall of the housing to form a folded portion;

[0031] The inner wall of the outer shell is partially recessed to form a first limiting groove; the first limiting groove is located on the side of the support platform away from the bottom shell;

[0032] The folding part is embedded in the first limiting groove and can move within the limiting space provided by the first limiting groove.

[0033] Thus, by forming a folding portion on the first support frame and having the folding portion engage with the first limiting groove on the inner wall of the outer shell, this disclosure enables the first support frame to move effectively on the inner wall of the outer shell, thereby improving the smoothness of the button structure's pressing.

[0034] In some alternative embodiments, the folding portion moves within the limiting space along the pressure direction;

[0035] The height of the limiting space in the pressure direction is between 0.8 mm and 1.5 mm.

[0036] In this way, the button structure has a suitable pressing distance, providing a comfortable physical button feel and improving the user experience.

[0037] In some optional embodiments, the first limiting groove includes a plurality of first limiting grooves, which are equally spaced at the same height on the inner wall of the outer shell;

[0038] The folding part includes multiple parts, and each folding part is embedded in a corresponding first limiting groove.

[0039] In this way, by setting multiple first limiting grooves and folding parts, the entire keycap assembly can be smoothly assembled onto the inner wall of the shell from all directions, overcoming the problem of the keycap assembly flipping over due to the key position being on the edge.

[0040] In some optional embodiments, the button structure further includes:

[0041] The second support frame is partially located within the cylindrical space, and is disposed between the circuit board in the push-button switch and the bottom shell to support the circuit board.

[0042] The second support frame is circumferentially continuous and forms a second hollow region; the magnetic component is located within the second hollow region;

[0043] The second support frame is engaged with the inner wall of the outer shell and the bottom shell at different positions, so that the outer shell is assembled onto the bottom shell.

[0044] Thus, by setting a second support frame, the outer shell and the bottom shell can be effectively assembled, and the position of the push-button switch in the button structure can be stabilized.

[0045] In some optional embodiments, the second support frame includes a first support section, a second support section, a third support section, and a fourth support section;

[0046] The first support segment is disposed opposite to the bottom shell; the second support segment and the third support segment are respectively formed by extending from the two opposite ends of the first support segment in a direction away from the shell; the fourth support segment is connected between the two ends of the first support segment and extends in a direction towards the bottom shell;

[0047] The second support segment is engaged with the inner wall of the outer casing via a first engaging portion; the fourth support segment is engaged with the bottom shell via a second engaging portion; at least one of the second support segment and the third support segment is also used to support the circuit board;

[0048] The third support segment, the fourth support segment, and the first sub-support segment of the first support segment together form the second hollow region; the opposite ends of the first sub-support segment are respectively connected to the third support segment and the fourth support segment.

[0049] Thus, when the second support frame is a Y-shaped structure formed by connecting the first support segment, the second support segment, the third support segment, and the fourth support segment, effective snap-fit ​​assembly can be achieved within the limited space of the button structure, and effective support can be provided for the circuit board.

[0050] In some optional embodiments, the first engaging portion is a second limiting groove; the inner wall of the outer shell has a protrusion;

[0051] The protrusion is positioned within the second limiting groove.

[0052] Thus, the second support frame can be effectively fixed to the inner wall of the outer shell through the limiting engagement between the second limiting groove and the protrusion on the inner wall of the outer shell.

[0053] In some alternative embodiments, the outer edge of the bottom shell bends upward to form a curved portion; the second engaging portion of the fourth support segment engages in the curved region of the curved portion;

[0054] The connection portion between the first support segment and the second support segment has a receiving groove;

[0055] The receiving groove is circumferentially continuous; the recessed portion of the receiving groove, the top surface of the curved portion, and the inner wall of the outer shell together form a receiving track;

[0056] The button structure also includes:

[0057] An elastic rubber ring, which, after elastic deformation, fills and is disposed in the receiving track.

[0058] In this way, the elastic rubber ring can form a stable sealing layer at the assembly position of the outer shell and the bottom shell, achieving waterproof and dustproof protection for the inside of the button structure.

[0059] In some optional embodiments, the button structure further includes:

[0060] The battery is located in the second hollow region and is fixedly installed on the third support section;

[0061] The battery is located between the circuit board and the magnetic component, and is electrically connected to the circuit board to supply power to the circuit board.

[0062] Thus, the battery provided in this embodiment can ensure the effective use of the electrical components inside the button structure.

[0063] In some alternative embodiments, the magnetic component further includes a metal protective shell;

[0064] The metal protective shell is mounted on the first magnet and located between the first magnet and the battery.

[0065] In this way, by setting up a metal protective shell, some magnetic field lines can be shielded, the attraction of the first magnet to the battery can be reduced, and the battery assembly stability can be guaranteed.

[0066] In some optional embodiments, the button structure further includes:

[0067] A foam layer is disposed between the metal protective shell of the magnetic component and the battery to fill the gap between the battery and the metal protective shell.

[0068] In this way, by adding a foam layer, the problem of battery loosening when the button structure is impacted or dropped can be improved, ensuring the effective functioning of the buttons.

[0069] In some alternative embodiments, the push-button switch includes:

[0070] The circuit board, sandwiched between the support platform on the inner wall of the housing and the second support frame of the button structure, has conductive contacts;

[0071] An elastic buffer section is disposed on the circuit board;

[0072] A conductive spring is embedded in the elastic buffer portion and aligned with the conductive contact;

[0073] When the push button switch is pressed, the elastic buffer part undergoes elastic deformation and squeezes the conductive spring to move toward the conductive contact.

[0074] In this way, the push-button switch can ensure the effective realization of the button function through the elastic buffer, conductive spring and conductive contacts on the circuit board.

[0075] In some optional embodiments, the button structure further includes:

[0076] A signal output component is disposed in the cylindrical space and electrically connected to the conductive contacts on the circuit board, for responding to the electrical conduction and outputting a signal related to the target button function;

[0077] The signals related to the target button function include optical signals and / or wireless signals; the wireless signals include Bluetooth signals.

[0078] Therefore, setting a signal output component within the button structure can effectively realize the target button function.

[0079] According to a second aspect of the present disclosure, a terminal device is provided. The terminal device includes:

[0080] Assembly platform, with assembly surfaces;

[0081] The second magnet is disposed on the side of the assembly platform opposite to the assembly surface;

[0082] The button structure proposed in the embodiments of the first aspect above;

[0083] When the button structure is placed on the assembly surface, the second magnet and the first magnet in the button structure are magnetically attracted to each other.

[0084] Thus, through the magnetic attraction between the second magnet and the first magnet, the button structure can be fixed on the terminal device, thereby effectively implementing the target button function related to the actual application scenario on the terminal device.

[0085] In some alternative embodiments, the terminal device includes a vehicle.

[0086] In this way, by assembling the button structure in the vehicle, compared with the virtual buttons on the vehicle control page, these buttons can be operated conveniently while driving, and an effective pressing feel can be obtained, reducing the problem of accidental touch.

[0087] In some alternative embodiments, the size of the second magnet matches the size of the magnetic components in the button structure;

[0088] The magnetic component includes the first magnet and a metal protective shell covering the first magnet.

[0089] In this way, the first and second magnets can be correctly and effectively aligned, overcoming the problem of unstable magnetic adsorption or displacement that affects the user experience.

[0090] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0091] Here, the button structure proposed in this embodiment includes a button switch and a magnetic component. The button switch enables effective physical button functionality, and the magnetic component allows the button structure to be mounted on the external terminal device via magnetic attraction between a first magnet and a second magnet in the terminal device. Thus, the magnetic component provides greater flexibility in the placement of the button structure on the terminal device, enabling its application in various scenarios, meeting customized user needs, and enhancing the user experience. Furthermore, compared to adhesive bonding, the magnetic attraction method eliminates the need to clean adhesive residue, mitigating surface damage caused by adhesive on the terminal device's mounting surface, and offering better reassembly performance, thereby improving the practicality and flexibility of the button structure's mounting on the terminal device.

[0092] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0093] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0094] Figure 1 This is a cross-sectional schematic diagram of a button structure according to an exemplary embodiment. Figure 1 .

[0095] Figure 2 This is an exploded view of a button structure according to an exemplary embodiment. Figure 1 .

[0096] Figure 3 This is an exploded view of a button structure according to an exemplary embodiment. Figure 2 .

[0097] Figure 4 This is a cross-sectional schematic diagram of a button structure according to an exemplary embodiment. Figure 2 .

[0098] Figure 5 This is a schematic diagram of a push-button switch according to an exemplary embodiment.

[0099] Figure 6 This is an exploded view of a button structure according to an exemplary embodiment. Figure 3 .

[0100] Appendix Figures 1 to 6 The reference numerals in the accompanying drawings are as follows:

[0101] 1. Housing; 11. Bottom shell; 12. Outer shell; 121. Support platform; 122. First limiting groove; 123. Protrusion;

[0102] 2. Push button switch; 21. Circuit board; 211. Negative electrode spring; 22. Elastic buffer; 221. Mounting hole; 23. Conductive spring; 24. Copper pillar; 25. Indicator light; 3. Magnetic component; 31. First magnet; 32. Metal protective shell; 4. Silicone layer; 5. Keycap assembly; 51. Press keycap; 52. First support frame; 521. Folding part; 6. Second support frame; 61. First support section; 62. Second support section; 621. Second limiting groove; 63. Third support section; 64. Fourth support section; 65. Receiving groove; 7. Elastic rubber ring; 8. Battery; 9. Foam layer. Detailed Implementation

[0103] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0104] This disclosure provides a button structure. See also Figure 1 , Figure 1 This is a schematic cross-sectional view of a button structure according to an exemplary embodiment. Figure 1 .

[0105] like Figure 1 As shown, the button structure proposed in this disclosure includes:

[0106] Casing 1;

[0107] The push-button switch 2 is installed in the housing 1 and is used to conduct electricity when pressure is applied, and to trigger the target button function through the electrical conduction.

[0108] The magnetic component 3 and the push-button switch 2 are installed at different positions on the housing 1;

[0109] The magnetic component 3 includes a first magnet 31, which is used to magnetically attract a second magnet in the terminal device and assemble the button structure into the terminal device through magnetic attraction.

[0110] The button structure proposed in this disclosure is applicable to various application scenarios such as industry, home, travel, and office, realizing some application-specific functions. In some examples, the button structure can be magnetically attached to a vehicle, such as within the driver's operating range, allowing for quick control of doors, windows, and lights by pressing the button. Similarly, if attached within the passenger's operating range, pressing the button can also provide quick control of specific windows or doors. In other examples, the button structure can be magnetically attached to an office desk, allowing meeting participants to adjust its position according to their presentation location and press it to perform specific meeting room functions, such as closing doors and windows, adjusting screen displays, or adjusting microphone volume. Of course, in other examples, the button structure proposed in this disclosure can also be installed in monitoring rooms, home air conditioners / refrigerators, and other functional devices to achieve related functions; this disclosure does not limit or elaborate on these applications.

[0111] In this embodiment, the housing is an external protective cover for the button structure, used to protect various functional components inside the button structure (such as the aforementioned button switch and magnetic components). Here, the housing in this disclosure can be a metal housing or a non-metallic housing made of materials such as plastic or rubber; this embodiment does not impose any limitations on this.

[0112] It should be noted that the housing proposed in this disclosure can be a fully enclosed housing, with the aforementioned button switch and magnetic component all located inside the housing. When using this button structure, the surface of the housing can be pressed, and the pressing force is transmitted to the button switch through some elastic elements inside the housing; the magnetic component is located near another surface inside the housing, different from the aforementioned pressing surface. This fully enclosed housing can better protect the internal components of the button structure. Of course, the housing proposed in this disclosure can also be a semi-enclosed housing, with the aforementioned button switch and / or magnetic component partially located inside the housing and partially exposed outside the housing, which can increase the physical pressing feel or improve the magnetic attraction effect. Figure 1 The shell 1 shown is a semi-enclosed shell.

[0113] In this embodiment of the disclosure, a push-button switch is a component that can conduct electricity in response to pressing pressure, specifically including a conductive element and conductive contacts. When the pressing pressure applied to the push-button switch exceeds a specified pressure threshold, the conductive element and conductive contacts of the push-button switch will conduct electricity, causing the push-button switch to a conducting state.

[0114] The push-button switch also includes a circuit board, on which the conductive contacts are formed. The conductive element can be disposed on the circuit board or spaced apart from it. It can move and / or deform when the received pressing pressure exceeds the specified pressure threshold. When the conductive element moves and / or deforms to a specified state, it will conduct electricity with the conductive contacts. The circuit board can sense the electrical conduction state of the push-button switch through its internal circuitry and trigger the target button function.

[0115] Here, in this embodiment of the disclosure, the target button function can be realized through functional components such as ultrasonic components and Bluetooth components. Taking ultrasonic components as an example, based on the above-mentioned electrical conduction, the circuit board will output a control signal to the ultrasonic components through internal circuitry, so that the ultrasonic components emit ultrasonic signals of a specified frequency; the ultrasonic signals can penetrate the housing (or be output to the outside through openings in the housing), and can be captured by other external devices to realize the specified function; such as realizing the control functions of the above-mentioned car windows and car lights through ultrasonic signals.

[0116] In this embodiment, the push-button switch can be disposed on the housing and can be directly pressed by the user's finger or palm; the push-button switch can also be disposed inside the housing, and the pressing is transmitted to the push-button switch through other conductive components inside the housing to realize touch control of the push-button switch.

[0117] In this embodiment, the button structure further includes a magnetic component, which is installed at a different location on the housing than the aforementioned button switch; for example, on a surface opposite to the housing, or on an adjacent surface of the housing. The magnetic component includes a first magnet, which has a pre-set placement position, and the polarity of the first magnet has a pre-set matching relationship with the polarity of a second magnet in an external terminal device.

[0118] Here, the magnets have north (N) and south (S) poles. When two magnets are close to each other and have different polarities, they will attract each other. Therefore, when the second magnet is placed under the assembly platform of the terminal equipment, the polarity of the second magnet facing the assembly platform is different from that of the first magnet facing the housing surface, which enables more effective magnetic adsorption.

[0119] In this embodiment, the shape, size, and number of the first magnet can be flexibly designed according to the layout space of the button structure. For example, the first magnet can be a sheet magnet laid flat on the inner surface of the housing, or it can be multiple small cylindrical magnets. Furthermore, when multiple magnets are used, they are typically arranged side-by-side, with each magnet having the same polarity orientation. Figure 1 As shown, there are two first magnets 31, both of which are located at the bottom of the housing 1.

[0120] In this disclosure, both the first and second magnets can be neodymium iron boron permanent magnets. This material has a high magnetic energy product and coercivity, and can provide effective magnetism in a small volume.

[0121] In addition, the magnetic strength of the first magnet needs to be moderate, so that the button structure can be stably attached to the external terminal device, but not too strong, so as not to affect the normal use of the button.

[0122] The button structure proposed in this embodiment includes a button switch and a magnetic component. The button switch enables effective physical button functionality, and the magnetic component allows the button structure to be mounted on the external terminal device via magnetic attraction between a first magnet and a second magnet in the terminal device. Thus, the magnetic component provides greater flexibility in the placement of the button structure on the terminal device, enabling its application in various scenarios, meeting customized user needs, and enhancing the user experience. Furthermore, compared to adhesive bonding, the magnetic attraction method eliminates the need to clean adhesive residue, mitigating surface damage caused by adhesive on the terminal device's mounting surface, and offering better reassembly performance, thereby improving the practicality and flexibility of the button structure's mounting on the terminal device.

[0123] In some alternative embodiments, see Figure 2 , Figure 2 This is an exploded view of a button structure according to an exemplary embodiment. Figure 1 ;like Figure 2 As shown, the housing includes a bottom shell 11 and a cylindrical outer shell 12;

[0124] The outer shell 12 is assembled on the bottom shell 11;

[0125] The push button switch 2 is assembled in the cylindrical space enclosed by the outer shell 12 and is opposite to the bottom shell 11 in the pressure direction of the push button switch 2.

[0126] The magnetic component 3 is located between the push button switch 2 and the bottom shell 11, and is assembled on the bottom shell 11.

[0127] Here, the housing in this embodiment includes a bottom shell and a cylindrical outer shell mounted on top of the bottom shell, wherein the cylindrical outer shell continuously forms a cylindrical space in the circumferential direction; the bottom opening of the outer shell faces the bottom shell and is connected to the bottom shell; the top opening of the outer shell provides a pressing part of a button structure.

[0128] The shape of the bottom shell is adapted to the cross-sectional shape of the cylindrical outer shell. In some examples, the cylindrical outer shell in this embodiment can be formed as a cylindrical tube, in which case the bottom shell is circular. In other examples, the cylindrical outer shell can also be a prismatic shell, such as a cube, in which case the bottom shell is square. Of course, in other examples, other shapes can be designed according to the aesthetics and diversity of the button structure, the actual needs of the assembly position in the terminal, etc., and this disclosure does not impose any restrictions on this.

[0129] The push-button switch disclosed herein is assembled within the aforementioned cylindrical space. For example, the push-button switch can be mounted to the inner wall of the housing using fasteners. In practical implementation, the circuit board at the bottom of the push-button switch can be glued to the inner wall of the housing, or it can be fixed to the inner wall of the housing using snap-fit ​​or interference fit methods. In this way, the entire push-button switch can be assembled within the cylindrical space. Alternatively, multiple support pillars can be provided in the bottom housing and the push-button switch. These support pillars are evenly distributed in the bottom housing and extend towards the push-button switch. The push-button switch can have nesting holes, and the support pillars can mate with these nesting holes to fix the push-button switch at a designated position within the cylindrical space. The nesting holes and support pillars can be threaded together.

[0130] Here, the push-button switch proposed in this embodiment is opposite to the bottom shell in the pressure direction, and the magnetic component is also disposed in the pressure direction and assembled on the bottom shell.

[0131] It is understood that in other embodiments of this disclosure, the magnetic component may not be mounted in the pressure direction of the push-button switch, for example, it may be mounted in another position on the inner wall of the housing, thereby increasing the actual assembly flexibility. However, in this approach, if the pressing force is too large, the actual force will be greater than the magnetic attraction between the first and second magnets. In this case, the entire button structure will move in the direction of the pressing force, causing the button structure to detach from the mounting surface of the terminal device, thus causing an assembly stability problem. In the embodiments of this disclosure, the magnetic component is placed in the pressure direction of the push-button switch, so that the direction of the pressing force is consistent with the direction of the magnetic attraction, overcoming the aforementioned assembly stability problem.

[0132] Additionally, it should be noted that the base and outer shell proposed in this disclosure can be made of metal or non-metallic materials such as plastic or rubber; this disclosure does not impose any restrictions on them. Taking a metal base as an example, the first magnet in the magnetic component can be assembled to the metal base by adsorption or by fasteners such as screws.

[0133] By assembling the magnetic components into the bottom shell, the assembly stability of the magnetic components in the button structure can be improved.

[0134] In some alternative embodiments, both the outer shell and the bottom shell are made of plastic; the magnetic component is bonded to the bottom shell.

[0135] It should be noted that both the outer shell and the bottom shell proposed in this disclosure can be plastic parts, formed after injection molding, cutting and other processes using a specified mold.

[0136] This embodiment of the invention uses plastic for both the outer and bottom shells, which significantly reduces cost and weight compared to using metal components, resulting in a lighter overall button structure. Compared to using rubber components, it also eliminates any unpleasant odor, providing a better user experience in enclosed environments such as cars and offices.

[0137] Here, when the bottom shell is formed as a plastic part, the first magnet in the magnetic assembly can be bonded to the inner surface of the bottom shell by dispensing adhesive.

[0138] In order to achieve more stable and effective magnetic adsorption, the shape and size of the first magnet can be adapted to the inner surface of the bottom shell; for example, when the bottom shell is circular, the first magnet is also circular, laid flat on the inner surface of the bottom shell, and bonded by adhesive; correspondingly, the second magnet is also circular in size, thereby overcoming the displacement problem during adsorption.

[0139] Thus, by making the outer shell and the outer shell into plastic parts, this disclosure can save costs and improve the portability of the button structure; while by setting the magnetic components to be bonded to the bottom shell, more stable and effective magnetic adsorption can be achieved.

[0140] In some alternative embodiments, combined with Figure 2 As shown, a portion of the inner wall of the outer casing 12 protrudes inward to form a support platform 121. The support platform 121 is distributed circumferentially along the inner wall of the outer casing and encloses a first hollow area; the push-button switch 2 is partially located in the first hollow area.

[0141] The button structure also includes:

[0142] Silicone layer 4 is disposed on the side of button switch 2 away from bottom shell 11 and covers button switch 2;

[0143] A sealant is disposed between the end of the silicone layer 4 facing the inner wall of the outer shell 12 and the support platform 121, for bonding and sealing the silicone layer 4 and the support platform 121.

[0144] Here, when the outer shell is a plastic part, the aforementioned support platform is formed during the injection molding process. The support platform is distributed circumferentially on the inner wall of the outer shell and forms a first hollow area. The button switch part is located in this first hollow area of ​​the annular structure. In addition, the part of the support platform extending into the outer shell is parallel to the bottom shell.

[0145] In some examples of this disclosure, the circumferential distribution of the support platform on the inner wall of the shell can be represented as follows: there is one support platform, which is continuous in the circumferential direction on the inner wall of the shell, so the support platform presents a closed ring structure; the ring space formed by this ring structure is the aforementioned first hollow region.

[0146] In other examples of this disclosure, the circumferential distribution of the support platforms on the inner wall of the housing can be manifested as follows: the support platforms include at least two, and the at least two support platforms are spaced apart at the same height on the inner wall of the housing; the area enclosed by the spaced-apart at least two support platforms forms the aforementioned first hollow area.

[0147] When the outer shell is cylindrical, each of the at least two support platforms can be an arc segment of the same or different lengths, and this disclosure does not impose any restrictions on this.

[0148] Optionally, at least two support platforms have the same length and are evenly spaced at the same height along the inner wall of the housing; such distribution of at least two support bars can improve support stability and alleviate the problem of pressure misalignment.

[0149] The disclosed button structure includes a silicone layer disposed between the button switch and the top opening of the housing. The silicone layer completely covers and abuts against the button switch. Due to the flexibility of the silicone layer, effective elastic cushioning can occur in the pressure direction. When the pressing force is small, the silicone layer will not deform significantly, and the internal conductive components of the button switch will not move. When the pressing force is appropriate, the silicone layer will deform, thereby compressing the button switch.

[0150] Here, considering that water or dust may enter through the opening at the top of the housing in the button structure, and since the button switch is an electrical component, if moisture and dust enter the button switch, it may cause an internal short circuit, affecting the continued use of the button switch. To improve this problem, the size of the aforementioned silicone layer is larger than the size of the first hollow area. In this way, the end of the silicone layer facing the inner wall of the housing can be circumferentially fixed to the support platform, blocking the path of water and dust ingress between the top opening of the housing and the button switch.

[0151] Of course, in order to achieve effective assembly between the silicone layer and the support platform, and to effectively block the path of water and dust ingress, this disclosure also proposes a sealant. The sealant is circumferentially coated on the support platform, and the end of the silicone layer facing the inner wall of the outer shell is bonded to the support platform by the sealant.

[0152] The aforementioned sealant may be polyurethane sealant, epoxy resin sealant, etc., and this disclosure does not impose any restrictions on it.

[0153] In some examples of this disclosure, if the outer shell is circular, then the aforementioned support platform can be an annular support platform, the sealant is annular, the silicone layer is circular, and the silicone layer is bonded to the annular support platform by the annular sealant.

[0154] In this way, the silicone layer can effectively seal the button switch, thereby protecting the internal electrical components of the button structure from dust and water, ensuring normal use of the button structure, and extending the service life of the button structure.

[0155] In some alternative embodiments, see Figure 3 and Figure 4 , Figure 3 This is an exploded view of a button structure according to an exemplary embodiment. Figure 2 ; Figure 4 This is a cross-sectional schematic diagram of a button structure according to an exemplary embodiment. Figure 2 ; combination Figure 2 , Figure 3 and Figure 4 As shown, the button structure also includes:

[0156] The keycap assembly 5 is located on the side of the silicone layer 4 away from the bottom shell 11, and includes a press keycap 51 and a first support frame 52;

[0157] The first support frame 52 is located inside the cylindrical space and is movably installed on the inner wall of the outer shell 12;

[0158] The keycap 51 is fixedly installed on the first support frame 52; the pressing surface of the keycap 51 is exposed outward through the top opening of the cylindrical space.

[0159] When the keycap 51 is pressed, the first support frame 52 moves on the outer shell 12, and the keycap 51 and the silicone layer 4 move synchronously in the pressing direction and squeeze the key switch 2.

[0160] In this embodiment, the keycap assembly is disposed on the side of the silicone layer facing away from the bottom shell, serving as the functional part provided by the key structure. The keycap assembly includes a press-down keycap and a first support frame supporting the press-down keycap.

[0161] The first support frame is located within the cylindrical space formed by the outer casing and is movably mounted on the inner wall of the casing, allowing it to move within the casing when the keycap assembly is subjected to pressure. It should be noted that because the silicone layer is adhered to the support platform, and the keycap assembly is positioned on the side of the silicone layer away from the key switch, the first support frame is mounted on the inner wall of the casing on the side of the support platform furthest from the bottom opening of the casing.

[0162] In this embodiment, the keycap includes a pressing surface and a non-pressing surface opposite to the pressing surface. The non-pressing surface is the back side and is fixedly installed on the first support frame, such as by applying adhesive. The pressing surface is exposed through the top opening of the cylindrical space of the outer shell, providing effective working space for the fingers and palm.

[0163] The material of the keycap is usually an insulating component, such as silicone, glass, or rubber. In this embodiment, it can be made of glass, such as tempered glass.

[0164] Understandably, glass's smooth and transparent surface provides a better tactile experience and enables more sophisticated visual effects, such as transparent designs or backlit displays, enhancing the product's overall appearance. Furthermore, glass's high hardness and scratch resistance make it suitable for frequently used applications.

[0165] It should be noted that in this disclosure, the first support frame is also circumferentially continuous and exhibits a ring-shaped structure. When the overall key structure is cylindrical, the first support frame exhibits a ring-shaped structure. The first support frame serves to support the outer edge of the keycap. To reduce the overall height of the key structure, the silicone layer can be partially fitted within the annular space of the first support frame, abutting against the back of the keycap. In this way, the pressing force applied to the keycap can be directly transmitted to the silicone layer and then, through the silicone layer, to the key switch.

[0166] like Figure 3 and Figure 4 As shown, the silicone layer 4 is partially fitted into the annular space of the first support frame 52, and abuts against the keycap 51 and the button switch 2 respectively. Thus, when the keycap 51 is pressed, the first support frame 52 moves on the outer casing 12, and the keycap 51 and the silicone layer 4 move synchronously in the pressure direction, squeezing the button switch 2. When the pressing force exceeds a specified pressure threshold, the first support frame 52 will be unable to continue moving on the inner wall of the outer casing 12, and the conductive parts of the button switch 2 will also achieve effective electrical conduction with the conductive contacts, thereby triggering the target button function.

[0167] It should also be noted that the push button switch also has an elastic element, which can undergo elastic deformation when pressed and restore its elastic deformation when the pressure is released, and push the keycap assembly to reset through the silicone layer.

[0168] In this embodiment of the disclosure, the keycap assembly can provide an effective pressing position for the key structure, ensuring the pressing experience of the key structure as a physical key.

[0169] In some alternative embodiments, combined with Figure 3 and Figure 4 As shown, the first support frame 52 folds outward in the direction toward the inner wall of the outer casing 12 to form a folded portion 521;

[0170] The inner wall of the outer shell 12 is partially recessed to form a first limiting groove 122; the first limiting groove 122 is located on the side of the support platform 121 away from the bottom shell 11;

[0171] The folding part 521 is embedded in the first limiting groove 122 and can move within the limiting space provided by the first limiting groove 122.

[0172] In this embodiment, the first support frame is movably assembled with the inner wall of the outer shell. Therefore, if the outer shell is a plastic part, the first support frame can also be set as a plastic part. In this way, the movable assembly between the first support frame and the inner wall of the outer shell is a snap-fit ​​assembly between plastic parts. Such assembly is simple and more convenient for the production of button structures.

[0173] Since the keycap assembly is assembled on the side of the key switch away from the bottom shell, the first limiting groove is also located on the side of the support platform away from the bottom shell. The first limiting groove provides a limiting space through which the first support frame can move.

[0174] Here, the end of the first support frame facing the inner wall of the outer shell can be folded outward to form a folded part; the folded part is a deformable hook, which is embedded in the first limiting groove and moves within the limiting space provided by the first limiting groove.

[0175] In some examples, the extension direction of the first limiting groove is the thickness direction of the side wall of the outer shell, that is, perpendicular to the aforementioned pressure direction; in this case, when the keycap assembly is pressed, the deformable hook moves from the inner wall of the outer shell toward the outer wall of the outer shell within the limiting space, but the movement distance of the deformable hook is the same as the movement distance of the keycap and silicone layer in the pressure direction.

[0176] In other examples, the extension direction of the first limiting groove can also be parallel to the aforementioned pressure direction; in this case, the movement direction of the deformable hook is the same as the pressure direction of the aforementioned key switch, that is, the movement distance of the deformable hook within the limiting space is the same as the movement distance of the keycap and the silicone layer in the pressure direction.

[0177] This embodiment of the invention forms a folding portion on the first support frame, and the folding portion is matched with a first limiting groove on the inner wall of the outer shell, which enables the first support frame to move effectively on the inner wall of the outer shell and improves the pressing smoothness of the button structure.

[0178] In some alternative embodiments, the folding portion moves within the limiting space in the direction of pressure;

[0179] The height of the limiting space in the pressure direction is between 0.8 mm and 1.5 mm.

[0180] Optionally, the height of the limiting space in the compression direction is 1 mm.

[0181] In this embodiment, the extension direction of the first limiting groove is parallel to the aforementioned pressure direction; at this time, the movement direction of the deformable hook is the same as the pressure direction of the aforementioned key switch, that is, the movement distance of the deformable hook within the limiting space is the same as the movement distance of the keycap and the silicone layer in the pressure direction.

[0182] Here, the first limiting groove has an upper limit end and a lower limit end. When it is in a non-pressurized state, the deformable hook is stopped by the upper limit end; when the keycap is pressed, the deformable hook moves from the upper limit end to the lower limit end; when the keycap is reset, the deformable hook moves from the lower limit end to the upper limit end.

[0183] The lower limit end of the first limiting groove can be spaced apart from or connected to the support platform. When connected to the support bar, the support platform can further prevent the first support frame from moving downward, thus preventing excessive pressure from causing the deformable hook to break through the limitation of the first limiting groove, which could damage the internal structural layout or even severely damage the push-button switch.

[0184] In this embodiment of the disclosure, by setting the height of the limiting space in the pressure direction to be between 0.8mm and 1.5mm, the downward movement distance of the keycap under pressure can also be between 0.8mm and 1.5mm. This gives the key structure a suitable pressing stroke, provides a comfortable physical key feel, and improves the user experience.

[0185] In some optional embodiments, the first limiting groove includes multiple first limiting grooves, which are equally spaced at the same height on the inner wall of the outer shell;

[0186] The folding part includes multiple parts, and each folding part is embedded in a corresponding first limiting groove.

[0187] For example, in this embodiment of the present disclosure, four limiting grooves may be provided, which are equally spaced at the same height on the inner wall of the outer shell, and the distance between the upper limit end of each limiting groove and the support platform is equal. Correspondingly, four folding parts may also be provided, which are also equally spaced on the first support frame; each folding part is embedded in a corresponding limiting groove.

[0188] In this way, by setting multiple first limiting grooves and folding parts, the entire keycap assembly can be smoothly assembled onto the inner wall of the shell from all directions. Regardless of whether the keycap is pressed in the center area or the edge area, it can be pressed smoothly, overcoming the problem of the keycap assembly flipping over due to the key position being on the edge, and improving the user experience.

[0189] In some alternative embodiments, combined with Figure 3 and Figure 4 As shown, the button structure also includes:

[0190] The second support frame 6 is partially located in the cylindrical space, and the second support frame 6 is disposed between the circuit board 21 and the bottom shell 11 in the push button switch 2, for supporting the circuit board 21.

[0191] The second support frame 6 is continuous in the circumference and forms a second hollow region; the magnetic component 3 is located within the second hollow region;

[0192] The second support frame 6 is engaged with the inner wall of the outer shell and the bottom shell at different positions to assemble the outer shell onto the bottom shell.

[0193] Here, this disclosure also provides a second support frame for assembling the outer shell and the bottom shell. When both the outer shell and the bottom shell are made of plastic, the second support frame can also be made of plastic. In this way, the second support frame can be assembled with the outer shell and the bottom shell by a snap-fit ​​connection, which simplifies the assembly and facilitates the production of the button structure.

[0194] The second support frame has a portion located within the cylindrical space enclosed by the outer shell, and another portion located at the bottom shell. The second support frame has engaging parts located at different positions, which engage with the inner wall of the outer shell and with the bottom shell, respectively. This allows the second support to achieve relative fixation between the outer shell and the bottom shell, thus completing the assembly of the outer shell onto the bottom shell.

[0195] In this embodiment, since the second support frame needs to be engaged and connected to the bottom shell and the inner wall of the outer shell respectively, the second support frame is distributed between the bottom circuit board of the push button switch and the bottom shell, and the end of the second support frame away from the bottom shell can support the circuit board, thereby stabilizing the position of the push button switch in the push button structure.

[0196] It should be noted that, since the aforementioned support platform formed on the inner wall of the outer casing is designed to support the silicone layer on the push-button switch, the second support frame is positioned below the support platform, specifically on the side of the support platform facing away from the first limiting groove. In this way, the bottom circuit board of the push-button switch can be clamped between the support platform and the second support frame, resulting in a more secure fixation of the circuit board.

[0197] Furthermore, the second support frame proposed in this disclosure is a circumferentially continuous structure, exhibiting a ring-shaped structure with a second hollow region in the middle. The magnetic components proposed above in this disclosure are distributed within this second hollow region. For example, Figure 3 As shown, when the button structure is cylindrical, the second support frame 6 is a ring structure.

[0198] Thus, by setting a second support frame and fixing it to the outer shell and the bottom shell respectively by a snap-fit ​​connection, the outer shell and the bottom shell can be effectively fixed relative to each other; in addition, by setting a second support frame, the circuit board of the push-button switch can also be supported, thereby stabilizing the position of the push-button switch in the push-button structure.

[0199] In some alternative embodiments, combined with Figure 3 and Figure 4 As shown, the second support frame 6 includes a first support section 61, a second support section 62, a third support section 63, and a fourth support section 64;

[0200] The first support section 61 is disposed opposite to the bottom shell 11; the second support section 62 and the third support section 63 are respectively formed by extending from the two opposite ends of the first support section 61 in a direction away from the shell 11; the fourth support section 64 is connected between the two ends of the first support section 61 and extends in a direction towards the bottom shell 11.

[0201] The second support section 62 is engaged with the inner wall of the outer shell 12 via the first engaging part; the fourth support section 64 is engaged with the bottom shell 11 via the second engaging part; at least one of the second support section 62 and the third support section 63 is also used to support the circuit board 21.

[0202] The third support segment 63, the fourth support segment 64, and the first sub-support segment of the first support segment 61 together form the second hollow region; the opposite ends of the first sub-support segment are connected to the third support segment 63 and the fourth support segment 64, respectively.

[0203] It should be noted that when the first support frame is a plastic part, considering that the plastic part may undergo slight expansion due to the increase in ambient temperature, this expansion may cause compression of the internal structure of the button structure and affect the performance of the internal structure. Therefore, in this embodiment, the second support frame is set as a Y-shaped structure formed by connecting the first support segment, the second support segment, the third support segment and the fourth support segment. The first support segment is arranged opposite to the bottom shell. Optionally, the first support segment can be arranged parallel to the bottom shell. The second support segment and the third support segment are formed at two opposite ends of the first support segment and extend upward (i.e., extend in the direction away from the shell). In this way, there is a certain width of installation gap between the second support segment and the third support segment, which can not only accommodate the thermal expansion problem of the plastic part, but also serve as the assembly tolerance of the plastic part.

[0204] Here, since the second and third support sections extend in the direction away from the housing, they can be used to support the circuit board above. The second and third support sections can be of the same height, in which case both support sections support the circuit board above; however, in some examples, the second and third support sections can be set to unequal heights, with the taller support section supporting the circuit board above.

[0205] In this embodiment, the second and third support sections are arranged opposite to each other. Optionally, the second and third support sections can be arranged parallel to each other, both parallel to the inner wall of the outer casing. The third support section is closer to the center of the cylindrical space of the outer casing, and thus forms the second hollow region. The second support section is closer to the inner wall of the outer casing, and therefore a first engaging portion can be provided on the second support section to engage with the inner wall of the outer casing. In this case, a clamping gap can be formed between the second support section and the support platform on the inner wall of the outer casing, and the circuit board can be clamped in this clamping gap, with the second and / or third support sections providing upward support.

[0206] Here, the first support section is arranged parallel to the bottom shell, so it has two surfaces facing the bottom shell and away from the bottom shell. The second and third support sections are formed on the surface away from the bottom shell. The fourth support section is formed on the surface facing the bottom shell and extends downward (i.e., extends in the direction of the bottom shell). Therefore, a second engaging part can be provided on the fourth support section, and the second engaging part can be used to engage with the bottom shell.

[0207] It should be noted that the engagement connection between the first engaging part and the inner wall of the outer shell, and the engagement connection between the second engaging part and the bottom shell, can be a groove and a protrusion fitting connection, or an interference fit engagement connection, or naturally other forms of engagement connection. This disclosure does not impose any further restrictions on this.

[0208] It should also be noted that the third support segment mentioned above is a support segment closer to the center of the cylindrical space of the outer shell. Therefore, it can form a second hollow area together with the fourth support segment and the part of the first support segment between the third and fourth support segments. The second hollow area can be used to place magnetic components and other functional components, such as batteries.

[0209] Thus, when the second support frame is a Y-shaped structure formed by connecting the first support segment, the second support segment, the third support segment, and the fourth support segment, effective snap-fit ​​assembly can be achieved within the limited space of the button structure, and effective support can be provided for the circuit board.

[0210] In some alternative embodiments, combined with Figure 4As shown, the first engaging part is the second limiting groove 621; the inner wall of the outer shell 12 has a protrusion 123; the protrusion 123 is limited and disposed in the second limiting groove 621.

[0211] Here, the protrusions provided on the inner wall of the outer shell can be multiple, such as three or four, and the second limiting grooves can also be the same number. In this way, each protrusion can be limited in a limiting groove, so that the second support frame can be effectively fixed to the inner wall of the outer shell through the limiting cooperation between the second limiting groove and the protrusion on the inner wall of the outer shell.

[0212] Of course, in some other alternative embodiments, the first engaging part can also be configured as a protrusion, and the inner wall of the outer shell forms a groove to cooperate with it, thereby realizing the engaging engagement.

[0213] In some alternative embodiments, combined with Figure 3 and Figure 4 As shown, the outer edge of the bottom shell 11 bends upward to form a curved portion; the second engaging portion of the fourth support section 64 engages in the curved area of ​​the curved portion;

[0214] The connection portion between the first support section 61 and the second support section 62 has a receiving groove 65;

[0215] The receiving groove 65 is circumferentially continuous; the recessed part of the receiving groove 65, the top surface of the curved part, and the inner wall of the outer shell 12 together form a receiving track;

[0216] The button structure also includes:

[0217] The elastic rubber ring 7 is filled and placed in the receiving track after elastic deformation.

[0218] Here, after the outer edge of the bottom shell curves upward to form a curved section, the entire bottom shell takes on a bowl shape, as shown. Figure 2 , Figure 3 and Figure 4 As shown.

[0219] The fourth support section of the second support frame engages with the curved area of ​​the curved section via a second engaging part, thus achieving a locking connection with the bottom shell. Here, the second engaging part can be a hook structure.

[0220] Of course, in actual implementation, a mating part can also be provided in the bending area of ​​the bending part; when the fourth support section is partially embedded in the bending area, the second engaging part of the fourth support section engages with the mating part; for example, when the second engaging part is the above-mentioned hook structure, the mating part can be a limiting groove; or for example, when the second engaging part is a limiting groove, the mating part can also be a protrusion.

[0221] It should be noted that after the outer edge of the outer shell bends upward to form the curved section, the lower surface of the first support section, which connects to the second and fourth support sections, is opposite to the top surface of the curved section; and its side surface abuts against the inner wall of the outer shell. Furthermore, due to the formation of the curved section, the bottom of the outer shell can partially surround it to achieve overall aesthetic consistency. In this case, external moisture and dust may enter the button structure from this assembly location.

[0222] To solve this problem, in this embodiment, a receiving groove can be provided at the position where the first support segment and the second support segment connect with the first support segment. The receiving groove is circumferentially continuous and together with the top surface of the curved portion and the inner wall of the outer shell, it forms a circumferentially continuous receiving track. At the same time, this disclosure provides an elastic rubber ring. After the elastic rubber ring is compressed and deformed, it fills the receiving track to achieve a sealing treatment of the assembly position of the outer shell and the bottom shell.

[0223] Here, the elastic ring can be made of silicone or rubber; in this embodiment, it can be made of silicone. After the silicone elastic ring undergoes stable deformation and fills the receiving track, it partially resides within the receiving groove and contacts the top surface of the curved portion and the inner wall of the outer shell. Thus, after placement, the elastic ring recovers some of its elastic deformation, thereby forming a stable sealing layer at the assembly point of the outer and bottom shells, achieving waterproofing and dustproofing of the button structure's interior.

[0224] In some alternative embodiments, combined with Figure 3 and Figure 4 As shown, the button structure also includes:

[0225] Battery 8 is located in the second hollow area and is fixedly installed on the third support section 63;

[0226] The battery 8 is located between the circuit board 21 and the magnetic component 3 and is electrically connected to the circuit board 21 to supply power to the circuit board 21.

[0227] Here, the second hollow area enclosed by the second support frame and the portion of the first support segment between the fourth support segment and the third support segment can also serve as a battery compartment; thus, the button structure provided in this disclosure also includes a battery, which is fixed inside the battery compartment to provide power to the inside of the button structure.

[0228] Optionally, the battery proposed in this disclosure can be a button cell.

[0229] Understandably, the battery needs to be connected to the circuit board to power some of the electrical components in the button structure, so the battery is placed on the side closer to the button switch circuit board; thus, a mounting part can be set on the third support section, and the battery is mounted on the mounting part.

[0230] The battery includes a positive tab and a negative tab. The positive tab is electrically connected to a positive contact on the circuit board, and the negative tab is electrically connected to a negative contact on the circuit board. The negative contact 211 is described in detail below. Figure 4 As shown in the attached diagram, the positive electrode spring is not shown.

[0231] The battery provided in this embodiment can be disposed in the third support section and electrically connected to the circuit board, thus ensuring the effective use of the electrical components inside the button structure.

[0232] In some alternative embodiments, combined with Figure 3 and Figure 4 As shown, the magnetic component 3 also includes a metal protective shell 32;

[0233] A metal protective shell 32 is mounted on the first magnet 31 and is located between the first magnet 31 and the battery 8.

[0234] Here, the metal protective shell is in the pressure direction and its size is larger than that of the first magnet. The metal protective shell is placed on the first magnet and located between the first magnet and the battery to protect the first magnet.

[0235] The metal protective shell is made of hot-dip galvanized steel sheet (SGCC). This material provides strong corrosion resistance and high mechanical strength.

[0236] It should be noted that the metal protective shell can naturally adhere to the first magnet due to magnetic force. Its functions are twofold: First, it can shield some magnetic field lines, weaken the attraction of the first magnet to the battery, and prevent the button battery from being pulled off the third support section by excessive magnetic force during assembly. It also improves the wear problem of the battery compartment's snap-fit ​​mechanism. Second, the metal protective shell increases the magnetic field strength of the first magnet on the unshielded surface, making the magnetic effect of the first magnet better.

[0237] In addition, in this embodiment, the diameter of the second magnet located in the terminal device is the same as the diameter of the entire magnetic assembly (including the wall thickness of the metal protective shell). This allows for correct and effective alignment between the first and second magnets, improving the phenomenon of displacement during magnetic adsorption and further overcoming the problem of unstable magnetic adsorption or displacement affecting the user experience.

[0238] In some alternative embodiments, combined with Figure 3 and Figure 4 As shown, the button structure also includes:

[0239] Foam layer 9 is disposed between the metal protective shell 32 of the magnetic component 3 and the battery 8 to fill the gap between the battery 8 and the metal protective shell 32.

[0240] Here, the foam layer is attached to the metal protective shell. In some examples, the foam layer is bonded to the center of the metal protective shell to fill the gap between the battery and the magnetic components; in other examples, the cross-sectional dimensions of the foam layer in the pressure direction are the same as those of the metal protective shell in the pressure direction, and also the same as the cross-sectional dimensions of the battery in the pressure direction; thus, the foam layer can adequately fill the gap between the battery and the metal protective shell.

[0241] Thus, by placing a foam layer between the magnetic component and the battery, on the one hand, the first magnet can be further prevented from attracting the battery, and on the other hand, the problem of the battery becoming loose when the button structure is impacted or dropped can be improved, thus ensuring the effective realization of the button function.

[0242] In some alternative embodiments, combined with Figure 3 and Figure 4 As shown, the push-button switch 2 includes:

[0243] The circuit board 21 is sandwiched between the support platform 121 on the inner wall of the housing 12 and the second support frame 6 of the button structure, and has conductive contacts;

[0244] An elastic buffer portion 22 is disposed on the circuit board 21;

[0245] The conductive spring piece 23 is embedded in the elastic buffer portion 22 and aligned with the conductive contact;

[0246] When the push button switch 2 is pressed, the elastic buffer part 22 undergoes elastic deformation and squeezes the conductive spring 23 to move toward the conductive contact.

[0247] Here, the circuit board in the push-button switch needs to support other components in the push-button switch, such as the aforementioned elastic buffer and conductive spring. Therefore, the circuit board is usually a rigid circuit board, such as a printed circuit board (PCB).

[0248] Following the example above in this disclosure, the circuit board is sandwiched between the support platform on the inner wall of the housing and the second support frame of the button structure. In actual implementation, the circuit board is placed between the support platform and the second support frame, and then the second support frame is engaged with the three protrusions on the inner wall of the housing through the three second limiting grooves on the second support section. In this way, the support platform, the second support section and the circuit board are firmly connected through the engagement connection between the second support frame and the inner wall of the housing.

[0249] In this embodiment, a conductive contact is provided on the circuit board. Above the conductive contact, an elastic buffer portion and a conductive spring embedded in the elastic buffer portion are also provided. When the push-button switch is pressed, the elastic buffer portion undergoes elastic deformation, squeezing the conductive spring towards the conductive contact. After the pressure of the push-button switch is released, the elastic buffer portion returns to its elastic deformation, causing the conductive spring to move away from the conductive contact.

[0250] For example, the aforementioned elastic buffer portion can be a silicone portion, and the conductive spring can be a dome switch; wherein, the dome switch is embedded in the silicone portion and fixedly connected to the silicone cloth by dispensing adhesive. The dome switch is usually made of ultra-thin (0.05mm-0.1mm thickness) and ultra-hard stainless steel material, with a hardness generally between HV480-550. In this disclosure, the dome switch and the conductive contact are opposite each other. When the button switch is pressed, the dome switch deforms to make the center point concave, contacting the conductive contact of the circuit board, thereby realizing the aforementioned electrical conduction.

[0251] It should be noted that, in order to ensure the effective triggering of the button function after pressing, the conductive contact is set in the central area, and the aforementioned elastic buffer and conductive spring are also distributed in positions aligned with this center.

[0252] See Figure 5 , Figure 5 This is a schematic diagram of a push-button switch according to an exemplary embodiment; wherein, at least two copper pillars 24 are provided on the circuit board 21, and the elastic buffer part 22 is provided with at least two mounting holes 221, and the two copper pillars 24 pass through the two mounting holes 221 respectively, so that the elastic buffer part can be fixed on the circuit board.

[0253] Among them, the aforementioned copper pillar can be represented as a mushroom-head copper pillar, and the mounting hole is formed as a stepped hole. The assembly of the mushroom-head copper pillar and the stepped hole will be more effective and stable.

[0254] In this way, the push-button switch can ensure the effective realization of the button function through the elastic buffer, conductive spring and conductive contacts on the circuit board.

[0255] In some optional embodiments, the button structure further includes:

[0256] A signal output component is disposed in the cylindrical space and electrically connected to the conductive contacts on the circuit board, for responding to electrical conduction and outputting a signal related to the target button function.

[0257] Among them, the signals related to the target button function include optical signals and / or wireless signals; wireless signals include Bluetooth signals.

[0258] Here, the signal output component proposed in the embodiments of this disclosure may include indicator lights and / or Bluetooth components.

[0259] The indicator light can be mounted on the circuit board, close to the conductive contacts; combined with Figure 4 and Figure 5 As shown, the indicator light 25 is formed on the circuit board 21. The elastic buffer 22 has a through hole, and the conductive spring 23 has a circular hole. The indicator light 25 is aligned with the circular hole of the conductive spring 23 and the through hole of the elastic buffer 22. When the button switch 2 is pressed, the conductive spring 23 deforms and conducts electricity with the conductive contact, triggering the indicator light 25 to light up. The light signal emitted by the indicator light 25 passes through the circular hole of the conductive spring 23, the through hole of the elastic buffer 22, and the silicone layer 4 in sequence, illuminating the pattern on the back of the keycap 51, achieving an indication effect related to the function of the target button.

[0260] When the signal output component is a Bluetooth component, the Bluetooth component can be installed on the inner wall of the housing and electrically connected to the circuit board, or it can be directly installed on the circuit board. After the aforementioned electrical conduction occurs, the circuitry on the circuit board can trigger the Bluetooth component to send a Bluetooth signal; the Bluetooth signal is used to implement the target button function, such as opening or closing car windows or doors.

[0261] Of course, the signal output component can also be set as an ultrasonic component, an infrared sensing component, etc.; thus, the signals related to the target button function can also include ultrasonic signals and infrared signals, etc., and this disclosure does not limit them.

[0262] In this way, by setting a signal output component within the button structure, the target button function can be effectively realized.

[0263] This disclosure provides a terminal device. The terminal device includes:

[0264] Assembly platform, with assembly surfaces;

[0265] The second magnet is located on the side of the assembly platform away from the assembly surface;

[0266] The button structure proposed in any of the above embodiments of this disclosure;

[0267] When the button structure is placed on the assembly surface, the second magnet and the first magnet in the button structure are magnetically attracted to each other.

[0268] Hereinafter, the terminal devices mentioned in this disclosure, such as smart speaker, office desk, game console, monitor, vehicle, household refrigerator, household air conditioner, and household television, are not limited in this disclosure.

[0269] The terminal device provides an assembly platform with an assembly surface, and a second magnet is installed on the side of the assembly platform away from the assembly surface, for example, by being bonded to the side of the assembly platform away from the assembly surface.

[0270] Thus, in actual implementation, the button structure can be placed on the assembly surface, allowing the second magnet and the first magnet to magnetically attract each other, and the button structure can be fixed to the terminal device, thereby effectively implementing the target button function related to the actual application scenario on the terminal device.

[0271] In some alternative embodiments, the terminal device includes a vehicle.

[0272] Here, when the terminal device is the vehicle, the assembly platform can be the steering wheel operating platform, the armrest on the door, the operating platform near the operating joystick, etc. Of course, in actual situations, it can also be located in the rear door, trunk, etc.

[0273] Thus, by assembling the aforementioned magnetic button structure into the vehicle, compared to virtual buttons on the in-vehicle control screen, these buttons can be conveniently operated while driving, providing an effective tactile feedback and reducing accidental touches. Furthermore, magnetic attachment eliminates the need for cleaning adhesive residue compared to adhesive-backed methods, offering greater flexibility and enhancing the user experience.

[0274] In some alternative embodiments, the size of the second magnet matches the size of the magnetic components in the button structure;

[0275] The magnetic component includes a first magnet and a metal protective shell covering the first magnet.

[0276] Here, the diameter of the second magnet is the same as the diameter of the entire magnetic assembly (including the wall thickness of the metal protective shell). This allows for proper and effective alignment between the first and second magnets, improving the phenomenon of displacement during magnetic adsorption and further overcoming the problem of unstable magnetic adsorption or displacement affecting the user experience.

[0277] Of course, it should be noted that the second magnet and the aforementioned magnetic components have the same shape, for example, both are cylindrical structures.

[0278] The following description uses the example of a physical button structure installed in a vehicle as an example to illustrate the button structure and its assembly.

[0279] With the rapid advancement of automotive electrification and intelligentization, the trend of traditional fixed in-vehicle buttons being squeezed out by large in-vehicle control screens is becoming increasingly apparent. Compared to traditional buttons, the buttons displayed on the large screen are more aesthetically pleasing, have adjustable styles, and can meet most usage scenarios, making them popular with most consumers. However, as the functions of in-vehicle interfaces become increasingly diverse, it is becoming more and more difficult for consumers to find the required function button with one click from the screen menu; frequent operation of the large screen while driving also poses serious safety hazards.

[0280] To meet consumers' demand for customized buttons, achieve integrated interaction between the car, home, and people, and bring a more user-friendly experience, this disclosure proposes a physical button structure.

[0281] Traditional button structures typically use adhesive backing for installation, which has several drawbacks: First, the adhesive can cause surface damage to the car's interior; after prolonged use, residue may remain on the adhered surface, making it difficult to clean; second, the adhesive's stickiness is affected by external factors (such as adhesive performance, the surface properties of the adhered object, pressure and time, and ambient temperature and humidity), making it prone to falling off and impacting the user experience; third, the adhesive has poor re-adhesion performance, and after the user moves the button structure, the original adhesive becomes contaminated, making it easy to fall off when re-attached. Therefore, the button structure's attachment position is relatively fixed, making it difficult to change positions and significantly limiting its application scenarios.

[0282] In view of this, the button structure proposed in this disclosure is a magnetic structure. Specifically, a circular second magnet can be pre-embedded at a specific location inside the vehicle, with either the N pole or the S pole facing outwards; simultaneously, a magnetic component adapted to the size of the second magnet inside the vehicle is disposed inside the button structure; when the button structure is assembled at a specific potential inside the vehicle, the magnetic component magnetically attracts the second magnet inside the vehicle through the first magnet. Here, the first magnet is bonded to the inner surface of the base shell by adhesive application, ensuring reliable connection.

[0283] Furthermore, the magnetic button structure allows for flexible placement, meeting customized user needs. Additionally, users can remove the buttons and hold them in their hands for operation, satisfying diverse usage requirements. Considering that the button structure might be placed near the car door during use, making it susceptible to rain damage, this embodiment also incorporates a waterproof design, such as providing the aforementioned silicone layer and elastic rubber ring, ensuring the button structure continues to function normally even when wet.

[0284] In addition, the embodiments disclosed herein have optimized the feel of the button structure, for example, by providing a pressing stroke of 0.8mm to 1.5mm, ensuring that the pressing feel of the button structure is comparable to the pressing stroke and feel of other physical buttons in the vehicle; thus making the user experience more consistent for consumers.

[0285] Based on the above design, this disclosure proposes an example button structure; wherein, see [reference needed]. Figure 6 , Figure 6 This is an exploded view of a button structure according to an exemplary embodiment. Figure 3 ; the following is combined Figures 3 to 6 The hardware stacking and structural design of the button structure are explained below:

[0286] The button structure is generally circular (of course, it can also be made into other shapes, such as cuboids, depending on actual needs). The appearance includes a plastic outer shell 12 and a bottom shell 11, which are assembled by an internal second support frame 6.

[0287] The key structure includes a keycap assembly 5, which includes a press keycap 51 and a first support frame 52. The press keycap 51 is made of glass, such as tempered glass, and is fixed to the first support frame 52 by dispensing adhesive. The first support frame 52 is made of plastic. The press keycap 51 and the first support frame 52 are fixedly connected to form a glass support assembly.

[0288] Here, the first support frame 52 is provided with four folding parts 521, which are deformable hooks. There are four first limiting grooves 122 on the inner wall of the outer shell 12, which are notches. The four deformable hooks and the four sets of notches on the inner wall of the outer shell 12 engage with each other to form a movable connection between the keycap assembly 5 and the outer shell 12. The movable space of the connection is greater than 1mm to meet the requirements of key travel and feel.

[0289] The button structure also includes a silicone layer 4, which is bonded to the outer shell 12 with adhesive to provide waterproofing for the top of the button structure.

[0290] The button structure also includes a button switch 2, specifically comprising a circuit board 21, an elastic buffer 22, a conductive spring 23, a copper pillar 24, and an indicator light 25. The elastic buffer 22 is made of silicone, and the conductive spring 23 is a dome switch. The silicone and the dome switch are joined together by adhesive dispensing. The dome switch has a circular hole in the center. When the internal indicator light 25 (LED) illuminates, the light shines through this circular hole and the through-hole in the center of the silicone button, illuminating the pattern on the back of the glass keycap for indication. The dome switch is typically made of ultra-thin (0.05mm-0.1mm thick) and ultra-hard stainless steel, with a hardness generally between HV480-550. In the button, the dome switch is located on the conductive part of the circuit board 21. When pressed, the center point of the dome switch dips down, contacting the conductive contact on the circuit board 21, thereby completing the circuit.

[0291] The aforementioned silicone button is located at the center of the button structure and is aligned with the center area of ​​the circuit board 21; it is assembled together with the two mushroom-head copper pillars 24 on the circuit board 21 through two stepped holes on the silicone button.

[0292] The circuit board 21 is installed between the outer shell 12 and the second support frame 6 of the button structure; the second support frame 6 is also made of plastic, and the three protrusions 123 on the inner wall of the outer shell 12 are engaged with the three second limiting grooves 621 on the second support frame 6, so that the outer shell 12, the second support frame 6 and the circuit board 21 are firmly connected.

[0293] The button structure also includes a battery 8, which is a button battery in this disclosure. At this time, a battery compartment is formed inside the second support frame, and the battery 8 is placed in the battery compartment. It is electrically connected to the negative electrode spring 211 on the circuit board 21 and the positive electrode spring (not shown in the figure) on the side, thereby providing a stable power supply to the circuit board 21.

[0294] The button structure has a magnetic component 3, which includes a first magnet 31 and a metal protective shell 32. The metal protective shell 32 is made of SGCC and is naturally attracted to the first magnet 31 due to magnetic force. It has two functions: first, it shields part of the magnetic field lines, weakens the attraction of the first magnet 31 to the battery 8, and avoids excessive magnetic force and wear of the battery compartment latch during assembly, thus preventing the battery 8 from being pulled out; second, it increases the magnetic field strength of the first magnet 31 to the unshielded surface, making the magnetic effect better.

[0295] The diameter of the built-in magnetic component 3 of the button structure (including the wall thickness of the metal protective shell 32) is consistent with the diameter of the second magnet embedded in the vehicle, so as to prevent the button structure from shifting when the second magnet embedded in the vehicle is magnetically attracted.

[0296] The button structure also includes an elastic rubber ring 7, which is made of silicone. The elastic rubber ring 7 is located in the receiving groove 65 on the lower side of the second support frame 6. After the bottom shell 11 and the second support frame 6 are assembled, the elastic rubber ring 7 contacts the top surface of the curved part of the bottom shell 11, the receiving groove 65 and the inner wall of the outer shell 12 respectively. The silicone elastic rubber ring 7 produces a stable deformation and forms a stable waterproof layer.

[0297] In this disclosure, the first magnet 31 is fixed together with the bottom shell 11 by adhesive application; the foam layer 9 is attached to the center of the metal protective shell 32, which serves to fill the gap between the battery 8 and the magnetic component 3, and can prevent the battery 8 from becoming loose and affecting the button function when impacted or dropped.

[0298] When the button structure is installed in the vehicle, the glass keycap 51 can be pressed down. When the pressing force is transmitted to the silicone button, it causes the dome switch to deform, which in turn conducts the exposed copper area on the circuit board 21 (i.e. the above-mentioned conductive contact) and generates a trigger signal. This trigger signal is used to trigger the Bluetooth component set on the circuit board to emit a Bluetooth signal and trigger the LED light signal output by the indicator light 25.

[0299] The magnetic physical button for vehicles disclosed herein utilizes magnetic adsorption instead of adhesive bonding, offering greater flexibility in usage scenarios and allowing for easy switching without the need to clean residual adhesive, thus enhancing the user experience. Furthermore, the silicone layers and elastic rings on the top and bottom sides provide excellent waterproofing, ensuring effective operation even in rainy conditions when placed on a car door. Additionally, the large size of the elastic buffer and conductive spring in the button switch, along with a long overall travel (greater than 1mm), provides a tactile feel comparable to other buttons in the vehicle, further improving the user experience. Finally, the entire button structure, including the outer shell and support frame, is made of plastic, and the entire structure uses a snap-fit ​​design, eliminating the need for screws and simplifying assembly for easy manufacturing.

[0300] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0301] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A key structure characterized by comprising: include: case; A push-button switch, installed in the housing, is used to generate electrical conduction when pressure is applied, and to trigger the target button function through the electrical conduction; Magnetic components are mounted at different locations on the housing, along with the push-button switch. The magnetic component includes a first magnet, which is used to magnetically attract a second magnet in the terminal device, and to assemble the button structure into the terminal device through the magnetic attraction.

2. The key structure according to claim 1, wherein The housing includes a bottom shell and a cylindrical outer shell; The outer shell is assembled onto the bottom shell; The push-button switch is assembled within the cylindrical space enclosed by the outer shell and is opposite to the bottom shell in the pressure direction of the push-button switch; The magnetic component is located between the push-button switch and the bottom shell, and is assembled on the bottom shell.

3. The key structure according to claim 2, wherein Both the outer shell and the bottom shell are made of plastic; the magnetic component is bonded to the bottom shell.

4. The key structure according to claim 2, wherein The inner wall portion of the outer shell protrudes inward to form a support platform, which is distributed circumferentially along the inner wall of the outer shell and encloses a first hollow region; The push-button switch is partially located in the first hollow area; The button structure also includes: A silicone layer is disposed on the side of the push-button switch opposite to the bottom shell and covers the push-button switch; A sealant is disposed between the end of the silicone layer facing the inner wall of the housing and the support platform, for bonding and sealing the silicone layer and the support platform.

5. The key structure according to claim 4, wherein The button structure also includes: A keycap assembly, located on the side of the silicone layer opposite to the bottom shell, includes a press-on keycap and a first support frame; The first support frame is located within the cylindrical space and is movably mounted on the inner wall of the outer shell; The keycap is fixedly installed on the first support frame; the pressing surface of the keycap is exposed outward through the top opening of the cylindrical space. When the keycap is pressed, the first support frame moves on the outer shell, and the keycap and the silicone layer move synchronously in the pressure direction to squeeze the key switch.

6. The key structure according to claim 5, wherein The first support frame is folded outward in the direction toward the inner wall of the outer shell to form a folded portion; The inner wall of the outer shell is partially recessed to form a first limiting groove; the first limiting groove is located on the side of the support platform away from the bottom shell; The folding part is embedded in the first limiting groove and can move within the limiting space provided by the first limiting groove.

7. The key structure according to claim 6, wherein The folding portion moves within the limiting space along the pressure direction; The height of the limiting space in the pressure direction is between 0.8 mm and 1.5 mm.

8. The button structure according to claim 6, characterized in that, The first limiting groove includes multiple first limiting grooves, which are equally spaced at the same height on the inner wall of the outer shell; The folding part includes multiple parts, and each folding part is embedded in a corresponding first limiting groove.

9. The key structure according to any one of claims 2 to 8, characterized in that, The button structure also includes: The second support frame is partially located within the cylindrical space, and is disposed between the circuit board in the push-button switch and the bottom shell to support the circuit board. The second support frame is circumferentially continuous and forms a second hollow region; the magnetic component is located within the second hollow region; The second support frame is engaged with the inner wall of the outer shell and the bottom shell at different positions, so that the outer shell is assembled with the bottom shell.

10. The key structure according to claim 9, wherein The second support frame includes a first support section, a second support section, a third support section, and a fourth support section; The first support segment is disposed opposite to the bottom shell; the second support segment and the third support segment are respectively formed by extending from the two opposite ends of the first support segment in a direction away from the shell; the fourth support segment is connected between the two ends of the first support segment and extends in a direction towards the bottom shell; The second support segment is engaged with the inner wall of the outer casing via a first engaging portion; the fourth support segment is engaged with the bottom shell via a second engaging portion; at least one of the second support segment and the third support segment is also used to support the circuit board; The third support segment, the fourth support segment, and the first sub-support segment of the first support segment together form the second hollow region; the opposite ends of the first sub-support segment are respectively connected to the third support segment and the fourth support segment.

11. The key structure according to claim 10, wherein The first engaging portion is a second limiting groove; the inner wall of the outer shell has a protrusion; The protrusion is positioned within the second limiting groove.

12. The key structure according to claim 10, wherein The outer edge of the bottom shell bends upward to form a curved portion; the second engaging portion of the fourth support section engages in the curved area of ​​the curved portion; The connection portion between the first support segment and the second support segment has a receiving groove; The receiving groove is circumferentially continuous; The recessed portion of the receiving groove, the top surface of the curved portion, and the inner wall of the outer shell together form a receiving track; The button structure also includes: An elastic rubber ring, which, after elastic deformation, fills and is disposed in the receiving track.

13. The key structure according to claim 10, wherein The button structure also includes: The battery is located in the second hollow region and is fixedly installed on the third support section; The battery is located between the circuit board and the magnetic component, and is electrically connected to the circuit board to supply power to the circuit board.

14. The key structure according to claim 13, wherein The magnetic component also includes a metal protective shell; The metal protective shell is mounted on the first magnet and located between the first magnet and the battery.

15. The key structure according to claim 13, wherein The button structure also includes: A foam layer is disposed between the metal protective shell of the magnetic component and the battery to fill the gap between the battery and the metal protective shell.

16. The key structure according to any one of claims 2 to 8, wherein The push-button switch includes: The circuit board, sandwiched between the support platform on the inner wall of the housing and the second support frame of the button structure, has conductive contacts; An elastic buffer section is disposed on the circuit board; A conductive spring is embedded in the elastic buffer portion and aligned with the conductive contact; When the push button switch is pressed, the elastic buffer part undergoes elastic deformation and squeezes the conductive spring to move toward the conductive contact.

17. The key structure according to claim 16, wherein The button structure also includes: A signal output component is disposed in a cylindrical space and electrically connected to the conductive contacts on the circuit board, for responding to the electrical conduction and outputting a signal related to the target button function; The signals related to the target button function include optical signals and / or wireless signals; the wireless signals include Bluetooth signals.

18. A terminal device, comprising: include: Assembly platform, with assembly surfaces; The second magnet is disposed on the side of the assembly platform opposite to the assembly surface; The button structure as described in any one of claims 1 to 17; When the button structure is placed on the assembly surface, the second magnet and the first magnet in the button structure are magnetically attracted to each other.

19. The terminal device of claim 18, wherein, The terminal equipment includes vehicles.

20. The terminal device of claim 18, wherein, The dimensions of the second magnet match the dimensions of the magnetic components in the button structure; The magnetic component includes the first magnet and a metal protective shell covering the first magnet.

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