Switch assembly, key module, combined key, and electronic device

Abstract

This application provides a switch assembly, a button module, a combined button, and an electronic device. Abutting parts that are of a terminal pair and that are in contact with a dome and contacts that are of the terminal pair and that are electrically connected to an external circuit are accommodated in an accommodating member of the switch assembly, and the two contacts of the terminal pair are disposed adjacently. An external circuit board may be electrically connected to the two contacts of the terminal pair, to be electrically connected to the switch assembly. The external circuit board does not need to be disposed at a bottom of the switch assembly, or does not need to be stacked on the switch assembly. No glue filling space needs to be reserved on a back surface of the switch assembly. This helps reduce a width of the switch assembly. The switch assembly, the button module, and the combined button are small in size, have reliable functions, and occupy less space after being mounted. The electronic device on which the switch assembly is mounted can be further thinned in a thickness direction, so that use in an electronic device with limited accommodating space is extensive.

Description

[0001] This application claims priority to Chinese Patent Application No. 202311246836.5, filed with the China National Intellectual Property Administration on September 25, 2023 and entitled "SWITCH ASSEMBLY, BUTTON MODULE, COMBINED BUTTON, AND ELECTRONIC DEVICE", which is incorporated herein by reference in its entirety.TECHNICAL FIELD

[0002] This application relates to the field of terminal device hardware, and specifically, to a switch assembly, a button module, a combined button, and an electronic device.BACKGROUND

[0003] Lightweighting and thinning are a development trend of a portable electronic device like a mobile phone, a foldable device, and a tablet computer. A thickness and a weight of an electronic device are important factors that affect user experience.

[0004] A switch assembly disposed on a side frame of the electronic device limits the thickness of the electronic device to a large extent. How to improve a structure of the switch assembly without reducing function reliability of the switch assembly to reduce a limitation of the switch assembly on further thinning of the electronic device is a problem worth considering.SUMMARY

[0005] This application provides a switch assembly. Two contacts of a terminal pair of the switch assembly may be both accommodated in an accommodating member of the switch assembly, and are configured to connect the switch assembly to an external circuit. When the external circuit is connected to the switch assembly, the external circuit does not need to be stacked on the back of the switch assembly, and the external circuit may be electrically connected to the switch assembly more reliably. No glue filling space needs to be reserved in a width direction of the switch assembly. This integrally helps reduce space occupied by the switch assembly in a thickness direction of the electronic device when the switch assembly is used.

[0006] According to a first aspect, a switch assembly is provided, including: an accommodating member, a dome, a push rod, a protective film, a first terminal, and a second terminal. The dome, the push rod, the first terminal, and the second terminal are accommodated in the accommodating member. The first terminal and the second terminal are spaced from each other. The first terminal includes a first abutting part and a first contact, the second terminal includes a second abutting part and a second contact, and the first contact and the second contact are configured to electrically connect the switch assembly to an external circuit. The dome and the first abutting part are spaced from each other, and the dome is in contact with the second abutting part. The push rod is located on a surface that is of the dome and that is away from the first abutting part, and the protective film is located on a side that is of the push rod and that is away from the dome. The first contact and the second contact are disposed adjacently, the first contact and the second contact are located outside a range of a projection of the protective film on a first plane, the first contact and the second contact are located on a same side of the protective film, and the first plane is a plane on which the accommodating member is located.

[0007] In some scenarios, the first terminal may also be referred to as a first connection terminal, and the second terminal may also be referred to as a second connection terminal. The first terminal and the second terminal may form a terminal pair. That the first terminal and the second terminal are spaced from each other may also be understood as that the two terminals are not in contact with each other.

[0008] In a possible implementation, both the first terminal and the second terminal may be conductive metal sheets. The abutting part and the contact of the terminal each should be understood as a conductive sheet, a conductive plate, a conductive block, or the like with a specific contact area.

[0009] It should be understood that the dome is made of a conductive material. In some scenarios, the dome may be a conductive metal sheet.

[0010] In this technical solution, the contact of the first terminal and the contact of the second terminal are located in a same region of the accommodating member. When an external circuit board is connected to the switch assembly through the contact of the terminal, the external circuit board does not need to be disposed on a back surface of the switch assembly, and space occupied by the switch assembly in a thickness direction is reduced during actual use. In addition, because the external circuit board does not need to be disposed on the back surface of the switch assembly, no filling medium needs to be provided on the back surface of the switch assembly, and no medium filling space needs to be reserved. Space occupied by the switch assembly in a width direction (namely, a thickness direction of the electronic device) is reduced, which helps further thinning the electronic device.

[0011] In a possible implementation, a plane on which the first contact is located is coplanar with a plane on which the first abutting part is located, and a plane on which the second contact is located is coplanar with a plane on which the second abutting part is located.

[0012] That the plane on which the contact is located is coplanar with the plane on which the abutting part is located should be understood as coplanarity or approximate coplanarity within a range allowed by a measurement error.

[0013] In a possible implementation, the accommodating member is injection-molded based on a shape of the terminal, in other words, a shape and a size of the accommodating member are determined based on a shape and a size of the terminal.

[0014] In another possible implementation, after a shape and a size of accommodating space such as an inner groove of the accommodating member are determined, the shape and the size of the terminal are determined.

[0015] Because the contact of the terminal and an abutting surface are basically coplanar, it is further ensured that the external circuit connected to the contact does not need to be disposed below the terminal (that is, below the switch assembly). In actual use, space occupied by the switch assembly in the thickness direction is reduced, and space occupied by the switch assembly in the width direction (namely, the thickness direction of the electronic device) is reduced.

[0016] With reference to the first aspect, in some implementations of the first aspect, the first terminal further includes a first connection section, the first abutting part and the first contact are connected to each other through the first connection section, the first connection section includes a first adapter part, and a plane on which the first adapter part is located and the first plane are inclined.

[0017] In a possible implementation, there may be a plurality of first adapter parts.

[0018] It should be understood that, in a possible implementation, the first connection section may not include a first adapter part that is disposed in an inclined manner, or a plane on which the first terminal is located is parallel to the first plane.

[0019] An inclined adapter part is disposed on the first terminal, so that space in a thickness direction of the accommodating member can be fully used, and space utilization in the accommodating member is improved. In addition, the adapter part that is disposed in an inclined manner also helps implement a firmness degree of mounting the first terminal in the accommodating member.

[0020] With reference to the first aspect, in some implementations of the first aspect, the second terminal further includes a second connection section, the second abutting part and the second contact are connected to each other through the second connection section, the second connection section includes a fourth adapter part, and a plane on which the fourth adapter part is located and the first plane are inclined.

[0021] In a possible implementation, there may be a plurality of second adapter parts.

[0022] It should be understood that, in a possible implementation, the first connection section may not include a second adapter part that is disposed in an inclined manner, or a plane on which the second terminal is located is parallel to the first plane.

[0023] An inclined adapter part is disposed on the second terminal, so that space in a thickness direction of the accommodating member can be fully used, and space utilization in the accommodating member is improved. In addition, the adapter part that is disposed in an inclined manner also helps implement a firmness degree of mounting the second terminal in the accommodating member.

[0024] With reference to the first aspect, in some implementations of the first aspect, the first abutting part includes a first abutting surface, the second abutting part includes a second abutting surface, and a distance from a first reference point on the dome to the first abutting surface is greater than a distance from the first reference point to the second abutting surface.

[0025] It should be understood that the first reference point is any reference point on the dome.

[0026] In some scenarios, the foregoing technical solution may also be understood as that the first abutting surface is located on a side that is of the second abutting surface and that is close to a back surface of the accommodating member.

[0027] Properly increasing the distance between the first abutting surface and the dome helps increase deformation stroke space in a force deformation process of the dome, and helps improve strength of feedback of a pressing operation performed by a user on the switch assembly in a use process, thereby improving user experience.

[0028] With reference to the first aspect, in some implementations of the first aspect, an embedding part is disposed at an end that is of the first abutting part and that is away from the first contact, and the embedding part is embedded in the accommodating member.

[0029] The first abutting part is partially embedded in the accommodating member, and the first terminal may be more firmly fastened in the accommodating member, which helps improve reliability of a function of the switch assembly.

[0030] With reference to the first aspect, in some implementations of the first aspect, the second abutting part is partially embedded in the accommodating member.

[0031] The second abutting part is partially embedded in the accommodating body, and the second terminal may be more firmly fastened in the accommodating member, which helps improve reliability of a function of the switch assembly.

[0032] With reference to the first aspect, in some implementations of the first aspect, the accommodating member includes a first accommodating body and a second accommodating body, the first abutting part, the second abutting part, the dome, and the push rod are accommodated in the first accommodating body, and the first contact and the second contact are accommodated in the second accommodating body.

[0033] In a possible implementation, the first accommodating body is a groove.

[0034] In a possible implementation, the second accommodating body may be any one of a groove, a boss, or a plane.

[0035] Disposing the accommodating body in the accommodating member to accommodate another component of the switch assembly helps improve space utilization inside the accommodating member and reduce an overall size of the switch assembly. In addition, the contacts and the abutting parts of the terminal pair are respectively accommodated in two different accommodating bodies, which helps reduce interference of the abutting parts when the contacts are connected to the external circuit board, and reduce adverse impact of water vapor, and the like in the environment on the abutting parts of the terminal pair.

[0036] With reference to the first aspect, in some implementations of the first aspect, a bottom of the first accommodating body is provided with a first sub-accommodating body and a second sub-accommodating body, the second sub-accommodating body is disposed around the first sub-accommodating body, the first abutting part is accommodated in the first sub-accommodating body, and the second abutting part is accommodated in the second sub-accommodating body. A bottom of the second accommodating body is provided with a third sub-accommodating body and a fourth sub-accommodating body, the first contact is accommodated in the third sub-accommodating body, and the second contact is accommodated in the fourth sub-accommodating body.

[0037] In a possible implementation, the first sub-accommodating body may be any one of a groove, a boss, or a plane.

[0038] In a possible implementation, the second sub-accommodating body may be any one of a groove, a boss, or a plane. For example, the second sub-accommodating body is an arc-shaped groove or a U-shaped groove.

[0039] The bottom of the first accommodating body is further provided with the first sub-accommodating body and the second sub-accommodating body that are configured to accommodate the abutting part, which helps further improve utilization of internal space of the accommodating member. Stacking the dome and the push rod in the first accommodating body helps reduce a distance from a topmost component after a plurality of components are stacked to the bottom of the first accommodating body, and helps reduce a thickness of the accommodating member to a specific extent.

[0040] The bottom of the second accommodating body is further provided with the third sub-accommodating body and the fourth sub-accommodating body that are configured to accommodate a contact of a terminal, which helps further improve utilization of internal space of the accommodating member. When a part of the external circuit board is accommodated in the second accommodating body, a distance from an upper surface of the external circuit board to the back surface of the accommodating member is shorter, which helps reduce a thickness of the switch assembly to a specific extent.

[0041] With reference to the first aspect, in some implementations of the first aspect, a bottom of the accommodating member is provided with a first channel, and the first channel is for communication between the first sub-accommodating body and the third sub-accommodating body. The first terminal further includes the first connection section, the first connection section is connected to the first abutting part and the first contact, and the first connection section is accommodated in the first channel.

[0042] The bottom of the accommodating member is provided with a connection section configured to accommodate the abutting part and the contact that are connected to the first terminal, which further improves utilization efficiency of internal space of the accommodating member. The connection section does not need to additionally occupy space in a width direction of the accommodating member. This helps reduce a width of the switch assembly to a specific extent.

[0043] With reference to the first aspect, in some implementations of the first aspect, the bottom of the accommodating member is provided with a second channel, and the second channel is for communication between the second sub-accommodating body and the fourth sub-accommodating body. The second terminal further includes the second connection section, the second connection section is connected to the second abutting part and the second contact, and the second connection section is accommodated in the second channel.

[0044] The bottom of the accommodating member is provided with a connection section configured to accommodate the abutting part and the contact that are connected to the second terminal, which further improves utilization efficiency of internal space of the accommodating member. The connection section does not need to additionally occupy space in a width direction of the accommodating member. This helps reduce a width of the switch assembly to a specific extent.

[0045] In a possible implementation, the second accommodating body is a groove, a first notch is provided on a side of the accommodating member, and the first notch communicates with the second accommodating body.

[0046] In a possible implementation, the first notch is provided on another side wall of the accommodating member opposite to the second channel, or the first notch avoids the second channel.

[0047] A notch is provided on a side wall of the accommodating member, and the external circuit board may be directly inserted into the second accommodating body from the notch to connect to a contact of the terminal. A direction in which the first notch communicates with the accommodating body may be perpendicular to a plane on which the side wall of the accommodating member is located. This helps reduce difficulty in inserting the external circuit board into the notch, simplify assembling complexity of the switch assembly, and further reduce complexity of providing the notch on the accommodating member to a specific extent.

[0048] With reference to the first aspect, in some implementations of the first aspect, the first channel includes a first bent part, an extension direction of the first bent part is inclined relative to the first plane, the first connection section includes the first adapter part, and the first adapter part is attached to an inner wall of the first bent part.

[0049] In a possible implementation, there are two first bent parts, one of which is disposed close to the first sub-accommodating body, and the other is disposed close to the third sub-accommodating body. Extension directions of the two first bent parts are both inclined relative to the bottom surface of the first sub-accommodating body. In a possible implementation, the first connection section further includes a third adapter part, and the third adapter part is attached to an inner wall of another first bent part.

[0050] The bent part is disposed in the first channel, and the adapter part of the first terminal is attached to the bent part of the channel. In this way, the bent part can play a limiting role to a specific extent, so that the first terminal is more attached to the accommodating body, hybridization is not likely to occur, and a function of the switch assembly is more reliable.

[0051] With reference to the first aspect, in some implementations of the first aspect, the second channel includes a second bent part, an extension direction of the second bent part is inclined relative to the first plane, the second connection section includes the fourth adapter part, and the fourth adapter part is attached to an inner wall of the second bent part.

[0052] In a possible implementation, there are two second bent parts, one of which is disposed close to the second sub-accommodating body, and the other is disposed close to the fourth sub-accommodating body. Extension directions of the two second bent parts are both inclined relative to the bottom surface of the second sub-accommodating body. In a possible implementation, the second connection section further includes a sixth adapter part, and the sixth adapter part is attached to an inner wall of another second bent part.

[0053] The bent part is disposed in the second channel, and the adapter part of the second terminal is attached to the bent part of the channel. In this way, the bent part can play a limiting role to a specific extent, so that the second terminal is more attached to the accommodating body, hybridization is not likely to occur, and a function of the switch assembly is more reliable.

[0054] With reference to the first aspect, in some implementations of the first aspect, both the first accommodating body and the second accommodating body are grooves, the first accommodating body and the second accommodating body are spaced from each other, and a top surface of a groove wall of the first accommodating body is located on a side that is of a top surface of a groove wall of the second accommodating body and that is away from a back surface of the accommodating member.

[0055] In some scenarios, a bottom surface of the first accommodating body and a bottom surface of the second accommodating body are located on a same plane. The foregoing technical solution may also be understood as that a height of the groove wall of the first accommodating body is greater than a height of the groove wall of the second accommodating body, or a depth of the first accommodating body is greater than a depth of the second accommodating body.

[0056] Because the second accommodating body needs to accommodate the external circuit board, a height of a side wall of the first accommodating body that accommodates components such as the dome and the push rod is set to be greater than a height of a side wall of the second accommodating body, and a process in which the external circuit board is connected to the contact of the terminal does not easily cause adverse impact on a component in the first accommodating body (adverse factors such as dust and water vapor that may affect normal operation of the switch assembly may be brought into the process in which the external circuit board is connected).

[0057] In a possible implementation, a distance from the third sub-accommodating body to a side wall of the accommodating member is equal to a distance from the fourth sub-accommodating body to the same side wall.

[0058] In some scenarios, the foregoing technical solution may also be understood as that an arrangement direction of the third sub-accommodating body and the fourth accommodating body is parallel to a plane on which the side wall of the accommodating member is located.

[0059] Distances from the two contacts of the terminal pair to the side wall of the accommodating member are the same. This can reduce, to a specific extent, a length of the external circuit board that needs to be accommodated in the second accommodating body, help reduce a width of the second accommodating body, help reduce a width of the switch assembly, and help implement further thinning of the electronic device.

[0060] With reference to the first aspect, in some implementations of the first aspect, both the first sub-accommodating body and the second sub-accommodating body are grooves, the first sub-accommodating body and the second sub-accommodating body are spaced by a first sub-accommodating body wall, and an arc-shaped first boss is disposed on a top of the first sub-groove wall.

[0061] In a possible implementation, a top surface of the first boss and a top surface of the second abutting part are on a same plane.

[0062] The first boss is similar to a partition structure disposed between the first abutting part and the second abutting part. The dome in contact with the second abutting part is not easily in contact with the first abutting part due to being blocked by the first boss. Therefore, disposing the first boss helps improve stability of a structure and performance of the switch assembly provided in this application.

[0063] With reference to the first aspect, in some implementations of the first aspect, the first accommodating body is a groove, and the protective film covers a top surface of a side wall of the first accommodating body.

[0064] The protective film can prevent factors such as dust and water vapor outside the switch assembly from affecting normal working of a component in the first accommodating body, thereby improving reliability of a function of the switch assembly.

[0065] With reference to the first aspect, in some implementations of the first aspect, the switch assembly further includes a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are located on a same surface of the accommodating member, the first connecting piece covers the second accommodating body, the second connecting piece is located at an end that is of the accommodating member and that is away from the second accommodating body, and a surface that is of the first connecting piece and that is away from the accommodating member and a surface that is of the second connecting piece and that is away from the accommodating member are located on a same plane.

[0066] In a possible implementation, the first connecting piece and the second connecting piece are coated with an adhesive material, so that the first connecting piece and the second connecting piece can be configured to fasten to another component in a mounting process of the switch assembly.

[0067] Surfaces that are of the first connecting piece and the second connecting piece and that are away from the accommodating member are coplanar, that is, a plane can be formed. This helps make a bracket disposed outside the switch assembly and the switch assembly to be mutually attached, and helps simplify combination and mounting processes of the switch assembly and another component.

[0068] With reference to the first aspect, in some implementations of the first aspect, two ends of the accommodating member further include a protruding and / or concave fastening structure.

[0069] The fastening structures are disposed at the two ends of the accommodating member, and may be used for subsequent positioning and connection of the switch assembly and a structure like the bracket.

[0070] With reference to the first aspect, in some implementations of the first aspect, the switch assembly further includes a support plate, the support plate is connected to the back surface of the accommodating member, and the support plate is a fiber reinforced plate or a metal plate.

[0071] In a possible implementation, the support plate may be made of a metal material or an inorganic non-metal material, for example, a steel plate or a glass fiber reinforced plate.

[0072] The support plate plays a role of reinforcing the accommodating member to a specific extent, which helps reduce a probability that the switch assembly is deformed or damaged when an external force is applied, and improve durability of the switch assembly.

[0073] For detailed explanations of the following technical solutions and related descriptions of beneficial effects, refer to related descriptions in the first aspect. For brevity, details are not described below again.

[0074] According to a second aspect, a button module is provided, including a bracket, an adapter board, and the switch assembly according to the first aspect and any possible implementation of the first aspect. The bracket is configured to fasten the switch assembly. The adapter board includes a third contact and a fourth contact, the third contact is electrically connected to the first contact of the switch assembly, and the fourth contact is electrically connected to the second contact of the switch assembly.

[0075] In a possible implementation, a part of the adapter board that extends into a second groove may be referred to as an insertion part, and a width of the insertion part is less than a width of a first notch on the accommodating member. A thickness of a transition connection part is less than or equal to a depth of the first notch on the accommodating member.

[0076] Disposing the bracket can protect the switch assembly to a specific extent, and the adapter board can implement an interconnection between the button module and an external circuit. The adapter board is accommodated in the second groove, which helps control a thickness of the button module to a specific extent.

[0077] With reference to the second aspect, in some implementations of the second aspect, a first notch is provided on a side that is of the accommodating member of the switch assembly and that faces the adapter board. The adapter board includes an insertion part and a transition connection part. The insertion part includes the third contact and the fourth contact. The insertion part extends into the accommodating member, the transition connection part is connected to the insertion part, and the transition connection part is at least partially accommodated in the first notch.

[0078] The first notch is provided and is configured to accommodate a part of the transition connection part, which helps further reduce a size of the button module.

[0079] With reference to the second aspect, in some implementations of the second aspect, a first positioning part and a second positioning part are respectively disposed at two opposite ends of the switch assembly, and a third positioning part and a fourth positioning part are disposed on a surface that is of the bracket and that faces the switch assembly. The first positioning part fits the third positioning part, the second positioning part fits the fourth positioning part, and the first positioning part, the second positioning part, the third positioning part, and the fourth positioning part are configured to fasten the switch assembly to the bracket.

[0080] The support and the switch assembly may be fastened to each other in a plurality of manners. For example, a notch is provided on the switch assembly, and the bracket and the switch assembly are connected to each other through a pin connection, which helps reduce use of fasteners and the like, and helps further reduce space occupation of the button module.

[0081] With reference to the second aspect, in some implementations of the second aspect, the bracket includes a first bracket and a second bracket. The first bracket is fastened to the second bracket, the first bracket is located above the dome of the switch assembly, and the second bracket is at least partially located at two ends of the switch assembly. The first bracket is made of a material whose hardness is less than or equal to a first threshold, the second bracket is made of a material whose hardness is greater than or equal to a second threshold, and the first threshold is less than or equal to the second threshold.

[0082] In a possible implementation, the first bracket may be made of a soft material like silicone rubber, and the second bracket may be made of a hard material like epoxy resin glue.

[0083] The bracket is divided into a plurality of mutually connected parts, and different materials and different structures may be disposed for different parts, which helps implement different functions of different parts of the bracket, and helps improve user experience.

[0084] The first bracket interacts with a push rod and the dome of the switch assembly. When a user uses the first bracket, the soft first bracket can improve pressing comfort of the user. The second bracket can play a cushioning and bearing role to a specific extent, to help improve a protection effect on the switch assembly.

[0085] According to a third aspect, a combined button is provided, including: an accommodating member, an adapter board, a first switch assembly, and a second switch assembly. The first switch assembly includes a first terminal and a second terminal, the first terminal includes a first abutting part and a first contact, and the second terminal includes a second abutting part and a second contact. The second switch assembly includes a third terminal and a fourth terminal, the third terminal includes a third abutting part and a third contact, and the fourth terminal includes a fourth abutting part and the second contact. The accommodating member is provided with a first groove, a second groove, and a third groove. The first abutting part and the second abutting part are accommodated in the first groove, the third abutting part and the fourth abutting part are accommodated in the second groove, and the first contact, the second contact, and the third contact are included in the third groove. The adapter board extends into the third groove and is electrically connected to the first contact, the second contact, and the third contact.

[0086] In this technical solution, one accommodating member may accommodate functional components configured to implement functions of two switch assemblies, and contacts of terminals of the two switch assemblies may be jointly accommodated in one groove, which reduces a volume occupied by the switch assemblies to a specific extent, and helps reduce a space volume occupied by the combined button.

[0087] With reference to the third aspect, in some implementations of the third aspect, the combined button further includes a third switch assembly. The third switch assembly includes a fifth terminal and a sixth terminal, the fifth terminal includes a fifth abutting part and the third contact, and the sixth terminal includes a sixth abutting part and a fourth contact. The accommodating member is further provided with a fourth groove, and the fifth abutting part and the sixth abutting part are accommodated in the fourth groove. The fourth contact is further accommodated in the third groove. The adapter board is further electrically connected to the fourth contact.

[0088] In this technical solution, one accommodating member may accommodate functional components configured to implement functions of three switch assemblies, and contacts of terminals of the three switch assemblies are jointly accommodated in one groove, which helps reduce a space volume occupied by the combined button.

[0089] According to a fourth aspect, an electronic device is provided, including a middle frame, a button cap, and the button module according to the second aspect and any possible implementation of the second aspect, where the button cap is fastened to the middle frame, and the button cap abuts against the first bracket of the button module.

[0090] With reference to the fourth aspect, in some implementations of the fourth aspect, the electronic device includes a first display, a second display, and a cover. The second display is disposed opposite to the first display, and the button module is located between the first display and the second display; or the cover is disposed opposite to the first display, and the button module is located between the first display and the cover.

[0091] In a possible implementation, the electronic device is a foldable device, one of the first display and the second display is an external display of the foldable device, and the other is an internal display of the foldable device. The cover may be referred to as a rear cover or a backplane, and may be fastened to the middle frame of the electronic device, and cover a battery of the electronic device.BRIEF DESCRIPTION OF DRAWINGS

[0092] FIG. 1 is a diagram of an electronic device according to an embodiment of this application; FIG. 2 is a cross-sectional view of a button module according to an embodiment of this application; FIG. 3 is a diagram of a structure of a button module according to an embodiment of this application; FIG. 4 is an exploded view of a component of a switch assembly according to an embodiment of this application; FIG. 5 is a three-dimensional view of an accommodating member according to an embodiment of this application; FIG. 6 is a top view of an accommodating member according to an embodiment of this application; FIG. 7 is a diagram of an AA section of the accommodating member in FIG. 6; FIG. 8 is a diagram of a BB section of the accommodating member in FIG. 6; FIG. 9 is an enlarged view of a C1 region in FIG. 7; FIG. 10 is an enlarged view of a C2 region in FIG. 7; FIG. 11 is a bottom view of an accommodating member according to an embodiment of this application; FIG. 12 is a three-dimensional view of a terminal pair according to an embodiment of this application; FIG. 13 is a top view of one terminal in the terminal pair in FIG. 12; FIG. 14 is a top view of another terminal in the terminal pair in FIG. 12; FIG. 15 is a three-dimensional view of a dome according to an embodiment of this application; FIG. 16 is a main view of the dome in FIG. 15; FIG. 17 is a top view of a protective film according to an embodiment of this application; FIG. 18 is a main view of the protective film in FIG. 17; FIG. 19 is a top view of a support plate according to an embodiment of this application; FIG. 20 is a top view of a connecting piece according to an embodiment of this application; FIG. 21 is a top view of an accommodating member in which a terminal pair is mounted according to an embodiment of this application; FIG. 22 is a diagram of an AA section of a switch assembly according to an embodiment of this application; FIG. 23 is an enlarged view of a C3 region in FIG. 22; FIG. 24 is a diagram of a position relationship among a first terminal, a second terminal, and a dome; FIG. 25 is a three-dimensional view of a bracket according to an embodiment of this application; FIG. 26 is a three-dimensional view of the bracket in FIG. 25 from another observation perspective; FIG. 27 is a diagram of a manner of mounting a switch assembly and a bracket; FIG. 28 is a three-dimensional view of an adapter board according to an embodiment of this application; FIG. 29 is a diagram of an assembling manner of the adapter board in FIG. 28; FIG. 30 is a diagram of a combined button according to an embodiment of this application; FIG. 31 is a diagram of another combined button according to an embodiment of this application; and FIG. 32 is a diagram of still another combined button according to an embodiment of this application. DESCRIPTION OF EMBODIMENTS

[0093] The following describes embodiments of this application in detail. Examples of embodiments of this application are shown in the accompanying drawings. In the accompanying drawings, same or similar reference numerals indicate same or similar elements or elements having same or similar functions. The following embodiments described with reference to the accompanying drawings are examples, and are merely intended to explain this application, but should not be construed as a limitation on this application.

[0094] Unless otherwise defined, a technical term or a scientific term used herein shall have a general meaning understood by a person of ordinary skill in the technical field of this application. In the description of this application, it should be understood that orientation or position relationships indicated by the terms such as "center", "longitudinal", "transverse", "above", "below", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on orientation or position relationships shown in the accompanying drawings, and are merely used for ease and brevity of description of this application, rather than indicating or implying that the indicated apparatus or element needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as a limitation on this application.

[0095] Reference to "an embodiment", "some embodiments", or the like described in this specification means that a specific feature, structure, or characteristic described with reference to the embodiment is included in one or more embodiments of this application. Therefore, statements such as "in an embodiment", "in some embodiments", "in some other embodiments", and "in other embodiments" that appear at different places in this specification do not necessarily mean referring to a same embodiment. Instead, the statements mean "one or more but not all of embodiments", unless otherwise specifically emphasized in another manner. Terms "include", "contain", "have", and their variants all mean "include but not limited to", unless otherwise specifically emphasized in another manner.

[0096] Before embodiments of this application are described, some professional terms that may be used in the following content are first described.

[0097] A surface-mount process is a technology for mounting electronic components on a printed circuit board. Connectors are mainly classified into two parts: surface-mount connectors and through-hole connectors. The surface-mount connector is a surface-mounted component without a pin or a short lead. Solder paste needs to be printed on a circuit board, and then the component is mounted on the solder paste through a pick-and-place machine. Finally, the solder paste is melted through a reflow oven, so that the component is firmly bonded to the circuit board. The vertical surface-mount connector is a through-hole package component. In the vertical surface-mount connector, a hole needs to be drilled on a circuit board first, a pin of the component is inserted into the hole, and finally the pin is soldered to the circuit board through wave soldering or manual soldering.

[0098] Underfill (underfill) adhesive is an organic adhesive, for example, epoxy resin, used to reinforce a solder joint of an electronic component on a circuit board.

[0099] A flexible printed circuit board (flexible printed circuit, FPC), also referred to as a flexible circuit board, is a printed circuit board that is characterized by lightweight, thin thickness, softness, and bendability, and is mainly used in products such as a mobile phone, a notebook computer, and a liquid crystal display.

[0100] A snap dome, also referred to as a metal dome (metal dome) or a dome, is mainly used in products such as a thin film switch, a micro switch, and a printed circuit board, and has features such as stable contact, strong conductivity, and stable rebound.

[0101] A terminal, also referred to as a wiring terminal, is a connector configured to implement an electrical connection. In some examples, the terminal may be a metal sheet encapsulated in insulating plastic.

[0102] FIG. 1 shows an electronic device 10 according to an embodiment of this application. The electronic device 10 may include a first display 11, a middle frame 12, a backplane (or referred to as a cover, not shown in the figure), a "volume +" button 21, a "volume -" button 22, a power button 23, and the like.

[0103] The middle frame 12 may be configured to fasten the first display 11 and the backplane. Closed accommodating space may be enclosed by the middle frame 12, the first display 11, and the backplane. The accommodating space may be configured to accommodate another electronic component of the electronic device 10, for example, a battery, a main board, or a camera module.

[0104] A plurality of holes may be provided on the middle frame 12, and the plurality of holes may be provided on one side frame of the middle frame 12, two side frames disposed opposite to each other, or two side frames disposed adjacently. The plurality of holes may correspond to the "volume +" button 21, the "volume -" button 22, and the power button 23.

[0105] Components configured to implement functions of the "volume +" button 21, the "volume -" button 22, and the power button 23 may be accommodated in the foregoing accommodating space, and these components may be disposed near the foregoing buttons. In other words, the components configured to implement the functions of the foregoing plurality of buttons are disposed between the first display 11 and the backplane of the electronic device 10.

[0106] In some examples, the electronic device 10 may be a foldable device, and the electronic device 10 may include an internal display and an external display. For example, the first display 11 is the external display of the electronic device 10, and the internal display of the electronic device 10 may be disposed opposite to the first display 11, that is, located near the backplane of the electronic device 10. In this case, the components configured to implement the functions of the foregoing plurality of buttons may be considered as being disposed between the internal display and the external display of the electronic device 10.

[0107] A distance between the first display 11 and the backplane or a distance between the internal display and the external display of the electronic device may be considered as a thickness of the electronic device 10 (namely, a size in a Z-axis direction in FIG. 1). As described above, factors such as a structure, a size, and an arrangement of a related component of a button of the electronic device 10 determine the thickness of the electronic device 10 to a specific extent.

[0108] FIG. 2 is an example of a diagram of a structure and a mounting position of a first button module of the electronic device 10. The first button module may be any one of a related component of the "volume +" button 21, a related component of the "volume -" button 22, and a related component of the power button 23 of the electronic device 10. The first button module may include a first button cap 301, a first switch assembly 302, a filling medium 303, and a first circuit board component 304.

[0109] The first switch assembly 302 may be connected to the first circuit board component 304 by using a surface-mount process. When the first switch assembly 302 and the first circuit board component 304 are connected to each other by using the surface-mount process, there is a specific gap between the first switch assembly 302 and the first circuit board component 304. To improve reliability of the first button module and prolong a service life of the first button module, an underfill adhesive may be coated between the first switch assembly 302 and the first circuit board component 304 and on a periphery of the first switch assembly 302, to form the filling medium 303.

[0110] As shown in FIG. 2, a size of the first circuit board component 304 in the Z-axis direction should be greater than a size of the first switch assembly 302 in the Z-axis direction, so that when the underfill adhesive is filled, the adhesive does not overflow to a surface that is of the first circuit board component 304 and that is away from the first switch assembly 302, and the filling medium 303 including the adhesive can be wrapped around the periphery of the first switch assembly 302.

[0111] The filling medium 303 disposed to enhance reliability of the first button module occupies specific space in the Z-axis direction. For example, sizes of two parts of the filling medium 303 in the Z-axis direction of the first switch assembly 302 are approximately 0.5 mm in the Z-axis direction. In addition, to reduce adverse impact of the filling medium 303 on the first circuit board component 304, a size of the first circuit board component 304 in the Z-axis direction also needs to be increased. Both the two factors limit further thinning of the thickness of the electronic device to a specific extent.

[0112] In addition, due to a limitation of a processing process, it is difficult for the filling medium 303 to completely fill the gap between the first switch assembly 302 and the first circuit board component 304. In other words, even if the filling medium 303 is disposed, there is still a risk that a solder pin or soldering tin of the first switch assembly 302 located in the gap is exposed, which also reduces reliability of the first button module.

[0113] To minimize a size of the button module without compromising the reliability of the button module, and reduce space occupied by the button module in a thickness direction of the electronic device, this application provides a second switch assembly 500 and a second button module 40. Details are described below.

[0114] FIG. 3 is a diagram of an overall structure of the second button module 40. The second button module 40 includes the second switch assembly 500, a bracket 600, and an adapter board 700. The bracket 600 includes a first bracket 610 and a second bracket 620.

[0115] The bracket 600 is disposed on a periphery of the second switch assembly 500, and the bracket 600 may protect the second switch assembly 500 to a specific extent. The adapter board 700 may be electrically connected to the second switch assembly 500, and is configured to exchange a control signal, a data signal, and the like between the second switch assembly 500 and an external circuit.

[0116] The following first describes a structure of the second switch assembly 500, and then describes a connection between the second switch assembly 500 and the bracket 600 and a connection between the second switch assembly 500 and the adapter board 700.

[0117] As shown in FIG. 4, in some examples, the second switch assembly 500 may include a protective film 510, a push rod 520, a dome 530, a terminal pair 540, and an accommodating member 550. In some examples, the second switch assembly 500 may further include a support plate 560 and / or a connecting piece group 570.

[0118] The accommodating member 550 is integrally of a plate-shaped structure, and includes a first surface and a second surface that are disposed opposite to each other. The first surface may also be referred to as a front surface or a mounting surface of the accommodating member 550, and the second surface may also be referred to as a back surface or a fastening surface of the accommodating member 550.

[0119] FIG. 5 is a three-dimensional view of the accommodating member 550; FIG. 6 is a top view of the accommodating member 550; and FIG. 7 and FIG. 8 are respectively a diagram of an AA section and a diagram of a BB section of the accommodating member 550 in FIG. 6.

[0120] The first surface of the accommodating member 550 is provided with a first accommodating body and a second accommodating body that are spaced from each other. The first accommodating body is configured to accommodate components such as an abutting part of the terminal pair 540, the push rod 520, and the dome 530, and the second accommodating body is configured to accommodate contacts of the terminal pair 540. The first accommodating body may be a groove, and the second accommodating body may be either a boss or a plane. In the following embodiment, an example in which both the first accommodating body and the second accommodating body are grooves is used for description. A specific shape of the first accommodating body and a specific shape of the second accommodating body are not limited in this application. In this case, as shown in FIG. 5, the first accommodating body may also be referred to as a first groove 5510, and the second accommodating body may also be referred to as a second groove 5520.

[0121] The first groove 5510 and the second groove 5520 are configured to accommodate the terminal pair 540. The first groove 5510 is further configured to accommodate components such as the push rod 520 and the dome 530, and the second groove 5520 is further configured to accommodate a part of the adapter board 700 connected to the terminal pair 540.

[0122] With reference to FIG. 5 to FIG. 8, the first groove 5510 and the second groove 5520 may be disposed adjacently and share a first groove wall 5530. A bottom of the first groove 5510 is provided with a first sub-accommodating body and a second sub-accommodating body. The first sub-accommodating body is configured to accommodate an abutting part of a first terminal in the terminal pair 540, and the second sub-accommodating body may be configured to accommodate an abutting part of a second terminal in the terminal pair 540. The first sub-accommodating body may be any one of a groove, a boss, or a plane, and the second sub-accommodating body may also be any one of a groove, a boss, or a plane. In the following embodiment, an example in which both the first sub-accommodating body and the second sub-accommodating body are grooves is used for description. A specific shape of the first sub-accommodating body and a specific shape of the second sub-accommodating body are not limited in this application. In this case, with reference to FIG. 5 to FIG. 8, the first sub-accommodating body may also be referred to as a first sub-groove 5511, and the second sub-accommodating body may also be referred to as a second sub-groove 5512.

[0123] The bottom of the first groove 5510 is provided with the first sub-groove 5511 and the second sub-groove 5512. The second sub-groove 5512 is similar to a U-shaped groove, and the second sub-groove 5512 is provided on a periphery of the first sub-groove 5511, or the second sub-groove 5512 is provided around the first sub-groove 5511. The first sub-groove 5511 and the second sub-groove 5512 are spaced from each other. In some examples, the first sub-groove 5511 and the second sub-groove 5512 may share a first sub-groove wall 5531.

[0124] A bottom of the second groove 5520 is provided with a third sub-accommodating body and a fourth sub-accommodating body. The third sub-accommodating body is configured to accommodate a contact of the first terminal in the terminal pair 540, and the fourth sub-accommodating body may be configured to accommodate a contact of the second terminal in the terminal pair 540. The third sub-accommodating body may be any one of a groove, a boss, or a plane, and the fourth sub-accommodating body may also be any one of a groove, a boss, or a plane. In the following embodiment, an example in which both the third sub-accommodating body and the fourth sub-accommodating body are grooves is used for description. A specific shape of the third sub-accommodating body and a specific shape of the fourth sub-accommodating body are not limited in this application. In this case, with reference to FIG. 5 to FIG. 8, the third sub-accommodating body may also be referred to as a third sub-groove 5521, and the fourth sub-accommodating body may also be referred to as a fourth sub-groove 5522.

[0125] A bottom of the second groove 5520 is provided with a third sub-groove 5521 and a fourth sub-groove 5522. The third sub-groove 5521 is disposed close to the first groove wall 5530, and the fourth sub-groove 5522 is disposed away from the first groove wall 5530. In other words, the third sub-groove 5521 is disposed close to the first groove 5510, and the fourth sub-groove 5522 is disposed away from the first groove 5510.

[0126] As shown in FIG. 7, a through hole may be provided at an end that is of the first groove wall 5530 and that is close to a back surface of the accommodating member 550, to form a first channel 5540. The first channel 5540 communicates with the first sub-groove 5511 and the third sub-groove 5521 that are located on two sides of the first groove wall 5530. In other words, the first sub-groove 5511 and the third sub-groove 5521 may communicate with each other through the first channel 5540 disposed at the bottom of the accommodating member 550, and communication space among the first sub-groove 5511, the first channel 5540, and the third sub-groove 5521 may be used to accommodate any terminal, for example, the first terminal, in the foregoing terminal pair 540.

[0127] A bottom surface of the first sub-groove 5511 and a bottom surface of the third sub-groove 5521 may be located above the first channel 5540. A first bent part 5541 may be disposed at a part connected between the first channel 5540 and the first sub-groove 5511 and / or a part connected between the first channel 5540 and the third sub-groove 5521. The first bent part 5541 may be disposed, so that the terminal accommodated in the space is more attached to the channel, and the terminal is not prone to shake.

[0128] As shown in FIG. 5, FIG. 6, and FIG. 8, a first notch 5523 may be disposed on a surface that is of the second groove 5520 and that is adjacent to the first groove wall 5530, and a through hole is provided inside a side wall of a surface opposite to the first notch 5523 to form a second channel 5550. The second channel 5550 is configured to communicate with the second sub-groove 5512 and the fourth sub-groove 5522. In other words, the second sub-groove 5512 and the fourth sub-groove 5522 may communicate with each other through the second channel 5550 disposed at the bottom of the accommodating member 550, and communication space formed among the second sub-groove 5512, the second channel 5550, and the fourth sub-groove 5522 may be used to accommodate the other terminal, for example, the second terminal, in the foregoing terminal pair 540.

[0129] A bottom surface of the second sub-groove 5512 and a bottom surface of the fourth sub-groove 5522 may be located above the second channel 5550. A second bent part 5551 may be disposed at a part connected between the second channel 5550 and the second sub-groove 5512 and / or a part connected between the second channel 5550 and the fourth sub-groove 5522. The second bent part 5551 may be disposed, so that the terminal accommodated in the space is more attached to the channel, and the terminal is not prone to shake.

[0130] FIG. 9 is an enlarged view of a C1 region of an AA section in FIG. 6. An end that is of the first sub-groove wall 5531 located between the first sub-groove 5511 and the second sub-groove 5512 and that is away from the bottom surface of the first sub-groove 5511 may be provided with a first extension part 5532, and the first extension part 5532 may be obtained by extending from the end that is of the first sub-groove wall 5531 and that is away from the bottom surface of the first sub-groove 5511 to a middle region of the first sub-groove 5511. When the first terminal is mounted in the accommodating member 550, the first extension part 5532 may cover a part that is of the first terminal and that is accommodated in the first sub-groove 5511, or the first extension part 5532 may clamp the first terminal in the first sub-groove 5511. In other words, a part of the first terminal may be embedded in the first sub-groove wall 5531.

[0131] In some examples, the first extension part 5532 may be determined based on a shape of the first sub-groove 5511, for example, the first extension part 5532 may be disposed around a periphery of the first sub-groove 5511, to form an arc shape or the like.

[0132] As shown in FIG. 6, FIG. 7, and FIG. 9, another groove wall opposite to the first groove wall 5530 of the first groove 5510 may be referred to as a second groove wall 5560, and a second extension part 5561 may be disposed at an end that is of the second groove wall 5560 and that is away from the bottom surface of the second sub-groove 5512. The second extension part 5561 may be obtained by extending from the end that is of the second groove wall 5560 and that is away from the bottom surface of the second sub-groove 5512 to a middle region of the second sub-groove 5512. When the second terminal is mounted in the accommodating member 550, the second extension part 5561 may cover a part that is of the second terminal and that is accommodated in the second sub-groove 5512, or the second extension part 5561 may clamp the second terminal in the second sub-groove 5512. Alternatively, a part of the second terminal may be embedded in a groove wall of the first groove 5510.

[0133] In some examples, the second extension part 5561 may be determined based on a shape of the second sub-groove 5512, for example, the second extension part 5561 may be disposed around a periphery of the second sub-groove 5512, to form an arc shape or the like.

[0134] FIG. 10 is an enlarged view of a C2 region of an AA section in FIG. 6. With reference to FIG. 5, FIG. 9, and FIG. 10, a first boss 5533 may be disposed on an end that is of the first sub-groove wall 5531 and that is away from the bottom of the first sub-groove 5511, and the first boss 5533 may be continuously disposed along the first sub-groove wall 5531, to form a boss structure that is approximately arc-shaped.

[0135] A third extension part 5534 may be disposed on a side that is of the first groove wall 5530 and that is close to the first sub-groove 5511, the third extension part 5534 is integrally step-shaped, and the third extension part 5534 is located above the first channel 5540. The third extension part 5534 includes a first step surface 553A, a second step surface 553B, a third step surface 553C, and a fourth step surface 553D that are sequentially connected to each other. A plane on which the first step surface 553A is located is basically parallel to a plane on which the third step surface 553C is located, the first step surface 553A is connected to the third step surface 553C through the second step surface 553B, and a plane on which the second step surface 553B is located is basically perpendicular to the plane on which the first step surface 553A is located or the plane on which the third step surface 553C is located. The second step surface 553B and the fourth step surface 553D are connected to each other through the third step surface 553C, and the fourth step surface 553D and the third step surface 553C are disposed at an angle. In some examples, an extension direction of a plane on which the fourth step surface 553D is located may be parallel to an extension direction of the first bent part 5541 that is of the first channel 5540 and that is close to the first sub-groove 5511.

[0136] A top of the first boss 5533 may form a plane (for example, referred to as a first plane), and the first step surface 5535 of the third extension part 5534 may form another plane (for example, referred to as a second plane). Both the first plane and the second plane may be used to place the dome 530 mounted in the accommodating member 550. In some examples, the first plane and the second plane may be located in a same plane, or the first plane and the second plane may be connected to form a plane. The plane formed by the first plane and the second plane may be used to place the dome 530. In some examples, the dome 530 accommodated in the first groove 5510 may be in contact with a terminal in the second sub-groove 5512. In this case, the first boss 5533 may be considered as a partition structure disposed between the first sub-groove 5511 and the second sub-groove 5512, to prevent the dome 530 in contact with the terminal in the second sub-groove 5512 from approaching the first sub-groove 5511.

[0137] The first boss 5533 may be disposed close to the first sub-groove 5511 or close to the second sub-groove 5512, which may be specifically determined based on factors such as a shape and a size of the dome 530. When the dome 530 is mounted in the accommodating member 550, the first boss 5533 can support the dome 530 or prevent the dome 530 from moving to a specific extent.

[0138] As shown in FIG. 6, the first groove wall 5530 and the second groove wall 5560 that are disposed opposite to each other may be connected to each other through a third groove wall 5570 and a fourth groove wall 5580. In some examples, the first groove wall 5530, the second groove wall 5560, the third groove wall 5570, and the fourth groove wall 5580 may form an integrated structure. In other words, the four groove walls may be integrally formed through a same production process.

[0139] In some examples, ends that are of the four groove walls and that are away from the bottom of the first groove 5510, or tops of the four groove walls, may form a connection surface, and the connection surface may be configured to fasten to the protective film 510 of the switch assembly 500.

[0140] There should be a specific height difference between the top of the groove wall of the first groove 5510 and the bottom of the first groove 5510, or the first groove 5510 should have a specific depth, so that on the basis that the dome 530 is disposed in the first groove 5510, the push rod 520 with a specific height may be stacked on a surface that is of the dome 530 and that is away from the bottom of the first groove 5510.

[0141] Still refer to FIG. 10. A fourth extension part 5535 is disposed on a side that is of the first groove wall 5530 and that is close to the third sub-groove 5521. In other words, a fourth extension part 5535 is disposed on another side that is of the first groove wall 5530 and that is opposite to the third extension part 5534. The fourth extension part 5535 is integrally step-shaped, and the fourth extension part 5535 is located above the first channel 5540. The fourth extension part 5535 includes a fifth step surface 553E, a sixth step surface 553F, a seventh step surface 553G, and an eighth step surface 553H that are sequentially connected to each other. A plane on which the fifth step surface 553E is located is basically parallel to a plane on which the seventh step surface 553G is located, the fifth step surface 553E is connected to the seventh step surface 553G through the sixth step surface 553F, and a plane on which the sixth step surface 553F is located is basically perpendicular to the plane on which the fifth step surface 553E is located or the plane on which the seventh step surface 553G is located. The sixth step surface 553F and the eighth step surface 553H are connected to each other through the seventh step surface 553G, and the eighth step surface 553H and the seventh step surface 553G are disposed at an angle. In some examples, an extension direction of a plane on which the eighth step surface 553H is located may be parallel to an extension direction of the first bent part 5541 that is of the first channel 5540 and that is close to the third sub-groove 5521.

[0142] The third sub-groove 5521 disposed at the bottom of the second groove 5520 may be configured to accommodate a part of the first terminal, and the fourth sub-groove 5522 disposed at the bottom of the second groove 5520 may be configured to accommodate a part of the second terminal. As shown in FIG. 5 and FIG. 7, the third sub-groove 5521 and the fourth sub-groove 5522 may be considered as being formed by continuing to hollow out a specific depth from the bottom surface of the second groove 5520 to the back surface of the accommodating member 550. A top surface of a side wall of the third sub-groove 5521 and a top surface of a side wall of the fourth sub-groove 5522 may be considered as a bottom surface of the second groove 5520. In some examples, a depth of the second groove 5520 is greater than or equal to a thickness of a part that is of the adapter board 700 and that is connected to the terminal pair 540. In other words, the depth of the second groove 5520 can meet that the part that is of the adapter board 700 and that is connected to the terminal pair 540 can be accommodated in the second groove 5520.

[0143] FIG. 11 is a bottom view of the accommodating member 550. In some examples, a first fastening part 559A and a second fastening part 559B are respectively disposed at two opposite ends of the accommodating member 550, and the first fastening part 559A and the second fastening part 559B may be configured to connect the accommodating member 550 and the bracket 600.

[0144] For example, both the first fastening part 559A and the second fastening part 559B may be protruding parts, to be specific, the two ends of the accommodating member 550 may respectively extend outward to form the first fastening part 559A and the second fastening part 559B that are convex. In this case, the first fastening part 559A may also be referred to as a first convex part, and the second fastening part 559B may also be referred to as a second convex part.

[0145] Similarly, for example, both the first fastening part 559A and the second fastening part 559B may be recessed parts, to be specific, the two ends of the accommodating member 550 may be respectively recessed into a middle region to form the first fastening part 559A and the second fastening part 559B that are in a notch shape. In this case, the first fastening part 559A may also be referred to as a first concave part, and the second fastening part 559B may also be referred to as a second concave part. For example, the first concave part and the second concave part may be arc-shaped notches.

[0146] Similarly, for example, either of the first fastening part 559A and the second fastening part 559B may be a convex structure, and the other may be a concave structure.

[0147] FIG. 12 is a diagram of a structure of the terminal pair 540. The terminal pair 540 may include a first terminal 5410 and a second terminal 5420. The second terminal 5420 is approximately U-shaped, the first terminal 5410 is located in a region surrounded by the second terminal 5420, and the first terminal 5410 and the second terminal 5420 are spaced from each other.

[0148] As shown in FIG. 13, the first terminal 5410 may include a first abutting part 5430 and a first extension part 5440, where the first abutting part 5430 may be connected to the dome 530 in a pressed state. In some examples, the first abutting part 5430 is in a thin sheet shape or a thin plate shape, and one or more protruding structures may be disposed on a surface that is of the first abutting part 5430 and that faces the dome 530. The protruding structure may be referred to as an abutting block 5431. For example, four abutting blocks 5431 are disposed on the first abutting part 5430. The four abutting blocks 5431 are all columnar in shape with a quarter circular radial cross section. Every two of the four abutting blocks are spaced from each other.

[0149] In some examples, an embedding part 5432 may be further disposed on the first abutting part 5430, and the embedding part 5432 may be disposed at an end that is of the first abutting part 5430 and that is away from the first extension part 5440. The embedding part 5432 may be inserted into a gap between the first sub-groove 5511 of the accommodating member 550 and the first extension part 5532, to limit a position of the first terminal 5410 in the accommodating member 550.

[0150] The first extension part 5440 may be considered as a part formed by the first abutting part 5430 extending along the first channel 5540 to the third sub-groove 5521. The first extension part 5440 may include a first adapter part 5441, a second adapter part 5442, a third adapter part 5443, and a first contact 5444, where one end of the first adapter part 5441 is connected to the first abutting part 5430, and the other end of the first adapter part 5441 is connected to the second adapter part 5442. The second adapter part 5442, the third adapter part 5443, and the first contact 5444 are sequentially connected to each other, and the first contact 5444 is accommodated in the third sub-groove 5521.

[0151] A plane on which the second adapter part 5442 is located, a plane on which the first abutting part 5430 is located, and a plane on which the first contact 5444 is located are basically parallel, and the plane on which the first abutting part 5430 is located and the plane on which the first contact 5444 is located are basically coplanar. In other words, the first abutting part 5430 and the first contact 5444 are basically at a same height. In other words, when the first terminal 5410 is mounted in the accommodating member 550, distances from the plane on which the first abutting part 5430 is located and the plane on which the first contact 5444 is located to the back surface of the accommodating member 550 are basically equal. A distance from the plane on which the second adapter part 5442 is located to the back surface of the accommodating member 550 is less than a distance from the plane on which the first abutting part 5430 is located or the plane on which the first contact 5444 is located to the back surface of the accommodating member 550.

[0152] The first adapter part 5441 and the first abutting part 5430 are obliquely disposed, and the third adapter part 5443 and the second adapter part 5442 are obliquely disposed. When the first terminal 5410 is mounted in the accommodating member 550, both the first adapter part 5441 and the third adapter part 5443 are located on first bent parts 5541 of the first channel 5540, and the second adapter part 5442 is located between the two first bent parts 5541. A tilt angle of the first adapter part 5441 and a tilt angle of the third adapter part 5443 separately correspond to a tilt angle of the first bent part 5541 on which the first adapter part 5441 and the third adapter part 5443 are located, so that a part that is of the first terminal 5410 and that is in the first channel 5540 (namely, the first adapter part 5441, the second adapter part 5442, and the third adapter part 5443) can be attached to the first channel 5540 as much as possible.

[0153] It should be understood that an inner diameter of the first channel 5540 should be slightly greater than a width or thickness of the part that is of the first terminal 5410 and that is in the first channel 5540. For example, a spacing between an upper surface and a lower surface of the first channel 5540 should be slightly greater than the thickness of the part that is of the first terminal 5410 and that is in the first channel 5540, and a spacing between left and right sides of the first channel 5540 should be slightly greater than the width of the part that is of the first terminal 5410 and that is in the first channel 5540.

[0154] In some examples, the first terminal 5410 may not be disposed with the foregoing first adapter part 5441 and the third adapter part 5443 that are obliquely disposed. In other words, the first terminal 5410 may be similarly plate-shaped, and the first abutting part 5430 of the first terminal 5410, the first contact 5444, and the like may all be on a same plane.

[0155] FIG. 14 shows the second terminal 5420. The second terminal 5420 may include a second abutting part 5450 and a second extension part 5460. The second abutting part 5450 is approximately U-shaped, and the second extension part 5460 may be considered as being formed by extending, along the second channel 5550, an end of the second abutting part 5450 from the second sub-groove 5512 to the fourth sub-groove 5522. When the second terminal 5420 and the dome 530 are mounted in the accommodating member 550, the dome 530 may abut against the second abutting part 5450 of the second terminal 5420.

[0156] In some examples, the second abutting part 5450 may include a first limiting part 5451 and a second limiting part 5452. The first limiting part 5451 and the second limiting part 5452 may be disposed at two ends (namely, opening positions of a U-shaped part) of the second abutting part 5450. The first limiting part 5451 and the second limiting part 5452 may be close to each other, and a distance between the first limiting part 5451 and the second limiting part 5452 may be less than a distance between U-shaped openings. In other words, the first limiting part 5451 and the second limiting part 5452 may be considered as being obtained by extending from two ends of the second abutting part 5450 to inner sides of the opening positions.

[0157] The U-shaped second abutting part 5450 may be accommodated in the ring-shaped second sub-groove 5512 of the accommodating member 550, and the first limiting part 5451 and the second limiting part 5452 may clamp the second terminal 5420 in the second sub-groove 5512, so that the second terminal 5420 is more securely mounted, and reliability of the second switch assembly 500 is higher.

[0158] In some examples, the second extension part 5460 may include a fourth adapter part 5461, a fifth adapter part 5462, a sixth adapter part 5463, and a second contact 5464. One end of the fourth adapter part 5461 is connected to one end of the second abutting part 5450, and the other end of the fourth adapter part 5461 is connected to the fifth adapter part 5462. The fifth adapter part 5462, the sixth adapter part 5463, and the second contact 5464 are sequentially connected to each other, and the second contact 5464 is accommodated in the fourth sub-groove 5522.

[0159] A plane on which the fifth adapter part 5462 is located, a plane on which the second abutting part 5450 is located, and a plane on which the second contact 5464 is located are basically parallel, and the plane on which the second abutting part 5450 is located and the plane on which the second contact 5464 is located are basically coplanar. In other words, the second abutting part 5450 and the second contact 5464 are basically at a same height. In other words, when the second terminal 5420 is mounted in the accommodating member 550, distances from the plane on which the second abutting part 5450 is located and the plane on which the second contact 5464 is located to the back surface of the accommodating member 550 are basically equal. A distance from the plane on which the fifth adapter part 5462 is located to the back surface of the accommodating member 550 is less than a distance from the plane on which the second abutting part 5450 is located or the plane on which the second contact 5464 is located to the back surface of the accommodating member 550.

[0160] The fourth adapter part 5461 and the second abutting part 5450 are obliquely disposed, and the sixth adapter part 5463 and the fifth adapter part 5462 are obliquely disposed. When the second terminal 5420 is mounted in the accommodating member 550, both the fourth adapter part 5461 and the sixth adapter part 5463 are located on the second bent parts 5551 of the second channel 5420, and the fifth adapter part 5462 is located between the two second bent parts 5551. A tilt angle of the fourth adapter part 5461 and a tilt angle of the sixth adapter part 5463 separately correspond to a tilt angle of the second bent part 5551 on which the fourth adapter part 5461 and the sixth adapter part 5463 are located, so that a part that is of the second terminal 5420 and that is in the second channel 5550 (namely, the fourth adapter part 5461, the fifth adapter part 5462, and the sixth adapter part 5463) can be attached to the second channel 5550 as much as possible.

[0161] It should be understood that an inner diameter of the second channel 5550 should be slightly greater than a width or thickness of the part that is of the second terminal 5420 and that is in the second channel 5550. For example, a spacing between an upper surface and a lower surface of the second channel 5550 should be slightly greater than the thickness of the part that is of the second terminal 5420 and that is in the second channel 5550, and a spacing between left and right sides of the second channel 5550 should be slightly greater than the width of the part that is of the second terminal 5420 and that is in the second channel 5550.

[0162] In some examples, the second contact 5464 is connected to the sixth adapter part 5463 through a first connection arm 5465, and a direction in which the first connection arm 5465 and the second contact 5464 are connected to each other may be perpendicular to a direction in which the fourth adapter part 5461, the fifth adapter part 5462, and the sixth adapter part 5463 are mutually connected.

[0163] In some scenarios, a connection relationship between the second contact 5464 and the sixth adapter part 5463 may also be understood as follows: The second contact 5464 includes a right-angle connection arm 5465, one end of the right-angle connection arm 5465 is connected to the sixth adapter part 5463, and the other end of the right-angle connection arm 5465 is connected to the second contact 5464.

[0164] In some examples, the second terminal 5420 may not be disposed with the fourth adapter part 5461 and the sixth adapter part 5463 that are obliquely disposed. In other words, the second terminal 5420 may be similarly plate-shaped, and the second abutting part 5450 of the second terminal 5420, the second contact 5464, and the like may all be located on a same plane.

[0165] FIG. 15 and FIG. 16 are diagrams of a structure of the dome 530. The dome 530 may include one or more sub-domes. When the dome 530 includes a plurality of sub-domes, the plurality of sub-domes may be mutually stacked in a thickness direction to form the dome 530. Each sub-dome may include a pressing part 5310, a first support part 5320, and a second support part 5330. The first support part 5320 and the second support part 5330 may be disposed on a periphery of the pressing part 5310.

[0166] The pressing part 5310, the first support part 5320, and the second support part 5330 may all be thin plate-shaped or thin sheet-shaped. Both the first support part 5320 and the second support part 5330 are fastened to the pressing part 5310. In some examples, the pressing part 5310 may be approximately circular, both the first support part 5320 and the second support part 5330 may be arc-shaped, and the first support part 5320 and the second support part 5330 may be symmetrically disposed on two sides of the pressing part 5310. The first support part 5320 may be disposed in an inclined manner with the pressing part 5310, and the second support part 5330 may also be disposed in an inclined manner with the pressing part 5310. For example, an included angle between a plane on which the first support part 5320 is located and a plane on which the pressing part 5310 is located is α, an included angle between a plane on which the second support part 5330 is located and a plane on which the pressing part 5310 is located is β, and α=β.

[0167] The pressing part 5310, the first support part 5320, and the second support part 5330 that are included in the sub-dome may all be made of a conductive material. When the dome 530 is mounted in the accommodating member 550, the first support part 5320 and the second support part 5330 of the dome 530 may be supported on a plane including the first boss 5533 and the third extension part 5534 of the accommodating member 550, and may be in contact with a part that is of the second terminal 5420 and that is located in the second sub-groove 5512. The pressing part 5310 may be located above the first abutting part 5430 of the first terminal 5410, in other words, the pressing part 5310 and the first abutting part 5430 may be spaced from each other.

[0168] A material of the dome 530 should have an elastic modulus less than or equal to a preset threshold, in other words, when pressure is applied to the pressing part 5310, the dome 530 can deform, the included angle between the plane on which the first support part 5320 is located and the plane on which the pressing part 5310 is located and / or the included angle between the plane on which the second support part 5330 is located and the plane on which the pressing part 5310 is located can be reduced, and the pressing part 5310 of the dome 530 may approach and be in contact with the first abutting part 5430.

[0169] FIG. 17 and FIG. 18 are diagrams of a structure of the protective film 510. The protective film 510 is similarly cap-shaped. When the protective film 510 covers the first groove 5510, the protective film 510 can prevent water vapor, dust, and the like outside a device from entering the groove, to avoid affecting normal operation of the device and a component in the first groove 5510. The protective film 510 may include a top 5110, an eave part 5120, and a connecting piece 5130 configured to connect the top 5110 and the eave part 5120.

[0170] The eave part 5120 may lap over a top surface of a side wall of the first groove 5510 of the accommodating member 550, and a shape of the eave part 5120 may match a shape of the first groove 5510. The eave part 5120 has a specific width, so that when the eave part 5120 laps over the top surface of the side wall of the first groove 5510, sufficiently large contact area can be provided.

[0171] The top 5110 may be configured to accommodate a part or all of the push rod 520, and a shape of the top 5110 may match a shape of the push rod 520. For example, as shown in FIG. 14, the push rod 520 may be cylindrical, the top surface 5111 of the top 5110 may be circular, and a radius of the top surface 5111 may be slightly greater than a cross-sectional radius of the cylindrical push rod 520. The top 5110 may include a side wall 5112 connected to the top surface 5111, and the side wall 5112 is disposed around a periphery of the top surface 5111 and is connected to the periphery of the top surface 5111. An end that is of the side wall 5112 and that is away from the top surface 5111 may be connected to the connecting piece 5130. The top 5110 provided with the top surface 5111 and the side wall 5112 is similar to an inverted cylinder, and the cylindrical push rod 520 may be partially or completely accommodated in the cylinder. A radius of an arc formed by an end that is of the side wall 5112 and that is connected to the connecting piece 5130 may be greater than a radius of an arc formed by an end that is of the side wall 5112 and that is connected to the top surface 5111, to facilitate tilting of the connecting piece 5130, and control a size and a shape of the eave part 5120. The connecting piece 5130 may be formed by combining a plurality of sheet-like sub-connecting pieces, so as to help reduce processing difficulty of the protective film 510.

[0172] A surface on which the push rod 520 is in contact with the protective film 510 may be referred to as a first contact surface, and a surface on which the push rod 520 is in contact with the dome 530 may be referred to as a second contact surface. The first contact surface and the second contact surface are disposed opposite to each other. In some examples, to improve a degree of attachment between the push rod 520 and the protective film 510, a transition region may be disposed at a connection position between the first contact surface and a side wall of the push rod. The transition region may be an arc-shaped chamfer formed by physically grinding or chemically processing a periphery of the first contact surface. In some examples, to improve a degree of attachment between the push rod 520 and the dome, a shape of the second contact surface may be determined based on a shape of the dome 530 and a shape of a surface facing the push rod 520. For example, if the surface of the dome 530 facing the push rod 520 is an arc surface, the second contact surface of the push rod 520 may also be a contact surface with a specific arc and recess.

[0173] In some examples, the switch assembly 500 may further include a support plate 560. As shown in FIG. 19, the support plate 560 may include a second notch 562 corresponding to the first notch 5523 on the accommodating member 550, a third fastening part 561A corresponding to a first fastening part 559A on the accommodating member 550, and a fourth fastening part 561B corresponding to a second fastening part 559B on the accommodating member 550.

[0174] The second notch 562 may fit the first notch 5523 to accommodate a part of the adapter board 700. A shape and a size of the second notch 562 may be basically consistent with those of the first notch 5523. The third fastening part 561A may fit the first fastening part 559A, and the fourth fastening part 561B may fit the second fastening part 559B. The two groups of fastening parts may jointly fasten the bracket 600 to the switch assembly 500.

[0175] In some examples, the first fastening part 559A, the second fastening part 559B, the third fastening part 561A, and the fourth fastening part 561B may all be convex structures with consistent shapes and sizes.

[0176] In some examples, the first fastening part 559A, the second fastening part 559B, the third fastening part 561A, and the fourth fastening part 561B may all be concave structures with consistent shapes and sizes.

[0177] In some examples, one of the two groups of fastening structures: the first fastening part 559A and the third fastening part 561A, and the second fastening part 559B and the fourth fastening part 561B, may be a concave structure, and the other group is a convex structure.

[0178] The support plate 560 may be disposed on a back surface of the accommodating member 550, and may be fastened to the back surface of the accommodating member 550. In some examples, the support plate 560 may be made of a material with good mechanical performance, for example, a metal material with high rigidity and hardness or an inorganic non-metal material. For example, the support plate 560 may be a steel plate, a glass fiber reinforced plate, or the like. When the support plate 560 is disposed on the back surface of the accommodating member 550, the support plate 560 can reinforce the accommodating member 550, to reduce a probability that the switch assembly 500 is damaged under an external force.

[0179] In some examples, one or more first through holes are provided on the support plate 560 in a thickness direction, and the one or more first through holes may fit one or more protrusions disposed on a surface that is of the accommodating member 550 and that face the support plate 560 (namely, the back surface), to enhance a degree of firmness of a connection between the support plate 560 and the accommodating member 550. Specifically, the protrusion on the back surface of the accommodating member 550 may extend into the first through hole on the support plate 560, and a side wall of the protrusion may abut against an inner wall of the first through hole.

[0180] In some examples, a connecting piece group 570 may be further disposed in the switch assembly 500. With reference to FIG. 4 and FIG. 20, the connecting piece group 570 may include a first connecting piece 571 and a second connecting piece 572, and the first connecting piece 571 and the second connecting piece 572 are disposed separately. The first connecting piece 571 may be disposed close to the second groove 5520, and the second connecting piece 572 may be disposed close to the first groove 5510. In some examples, the first connecting piece 571 may cover the second groove 5520. When a part of the adapter board 700 is accommodated in the second groove 5520, the first connecting piece 571 may be pressed on a part that is of the adapter board 700 and that is accommodated in the second groove 5520, so that the adapter board 700 is in firmer and more stable contact with the terminal pair 540.

[0181] The second connecting piece 572 may be disposed at an end that is of the accommodating member 550 and that is away from the first connecting piece 571, and the second connecting piece 572 may avoid the second groove wall 5560 of the first groove 5510. In some examples, a thickness of the first connecting piece 571 is equal to a thickness of the second connecting piece 572, and surfaces that are of the first connecting piece 571 and the second connecting piece 572 and that are away from the accommodating member 550 can basically be on a same plane. When the bracket 600 is connected to the switch assembly 500, the connection surfaces between the bracket 600 and the switch assembly 500 can be more attached to each other, which helps improve reliability of the connection between the bracket 600 and the switch assembly 500.

[0182] In some examples, a fifth fastening part 573A corresponding to the first fastening part 559A on the accommodating member 550 may be disposed on the first connecting piece 571, and a sixth fastening part 573B corresponding to the second fastening part 559B on the accommodating member 550 may be disposed on the second connecting piece 572.

[0183] In some examples, the exterior of the connecting piece group 570 may be coated with an adhesive material. In a process of mounting the switch assembly 500, the connecting piece group 570 may be configured to mutually connect the switch assembly 500 and another component (for example, the bracket).

[0184] The fifth fastening part 573A may fit the first fastening part 559A, and the sixth fastening part 573B may fit the second fastening part 559B. The two groups of fastening parts may jointly fasten the bracket 600 to the switch assembly 500.

[0185] In some examples, the first fastening part 559A, the second fastening part 559B, the fifth fastening part 573A, and the sixth fastening part 573B may all be convex structures with consistent shapes and sizes.

[0186] In some examples, the first fastening part 559A, the second fastening part 559B, the fifth fastening part 573A, and the sixth fastening part 573B may all be concave structures with consistent shapes and sizes.

[0187] In some examples, one of the two groups of fastening structures: the first fastening part 559A and the fifth fastening part 573A, and the second fastening part 559B and the sixth fastening part 573B, may be a concave structure, and the other group is a convex structure.

[0188] The foregoing separately describes one or more components that may be included in the switch assembly 500. The following further describes function implementation of the switch assembly 500 with reference to a diagram of assembling a plurality of components.

[0189] FIG. 21 is a top view of the accommodating member 550 on which the terminal pair 540 is installed. The first abutting part 5430 of the first terminal 5410 is accommodated in the first sub-groove 5511, the first contact 5444 of the first terminal 5410 is accommodated in the third sub-groove 5521, and a connection part between the first abutting part 5430 and the first contact 5444 is embedded in the first channel 5410 disposed in the accommodating member 550. The second abutting part 5450 of the second terminal 5420 is accommodated in the second sub-groove 5512 provided around the first sub-groove 5511, the second contact 5464 of the second terminal 5420 is accommodated in the fourth sub-groove 5522, and a connection part between the second abutting part 5450 and the second contact 5464 is embedded in the second channel 5550 disposed in the accommodating member 550.

[0190] Both the first terminal 5410 and the second terminal 5420 in the terminal pair 540 may be made of a conductive material, for example, copper. The accommodating member 550 may be made of an insulation material (or a material whose conductivity is less than a preset threshold). The first terminal 5410 and the second terminal 5420 are spaced by a part of the accommodating member 550. Therefore, in a state shown in FIG. 21, the first terminal 5410 and the second terminal 5420 are in a state of no electrical connection or no conduction.

[0191] FIG. 22 is a diagram of an AA section of the accommodating member 550 in a state in which the protective film 510, the push rod 520, the dome 530, and the terminal pair 540 are all mounted on the accommodating member 550.

[0192] The protective film 510, the push rod 520, and the dome 530 are sequentially stacked in a thickness direction of the accommodating member 550, where the dome 530 is disposed close to the first abutting part 5430 of the first terminal 5410. The protective film 510 covers the first groove 5510. Specifically, a lap part 5120 of the protective film 510 may lap over a top of the first groove wall 5530, the second groove wall 5560, the third groove wall 5570, and the fourth groove wall 5580 of the first groove 5510. A surface (an inner surface) that is of the top 5110 of the protective film 510 and that faces the first groove 5510 may abut against a surface (a first contact surface) that is of the push rod 520 and that faces the protective film 510, and the push rod 520 may be partially accommodated in the top 5110 of the protective film 510. A surface (a second contact surface) that is of the push rod 520 and that is away from the protective film 510 may abut against a surface that is of the pressing part 5310 of the dome 530 and that faces the push rod 520, in other words, the push rod 520 may be carried on the pressing part 5310 of the dome 530. The support part (including the first support part 5320 and the second support part 5330) of the dome 530 may be carried on the first boss 5533 and / or a step part 5534.

[0193] In a state in which no external force is applied, the pressing part 5310 of the dome 530 is not in contact with the first abutting part 5430. In some examples, in a state in which no external force is applied, the support part of the dome 530 is not in contact with the second abutting part 5450.

[0194] FIG. 23 is an enlarged view of a C3 region in FIG. 22. A first mass point P1 on a surface that is of the pressing part 5310 of the dome 530 and that faces the first abutting part 5430 and a second mass point P2 that is on the support part of the dome 530 and that is close to the second abutting part 5450 are used as research objects, and a change in a process from starting to apply a force to the switch assembly 500 to removing the external force is examined.

[0195] For example, when a user presses the switch assembly 500, an external force F perpendicular to a thickness direction of the switch assembly 500 may be applied to the top 5110 of the protective film 510. Because the protective film 510, the push rod 520, and the dome 530 abut against each other, the external force F may be applied to the pressing part 5310 of the dome 530 through interaction between the protective film 510 and the push rod 520 and interaction between the push rod 520 and the dome 530.

[0196] As described above, there is an included angle between a plane on which the support part of the dome 530 is located and a plane on which the pressing part 5310 is located, and the dome 530 may be made of a material with a specific elastic modulus. In this way, when the external force F is applied to the pressing part 5310, the pressing part 5310 of the dome 530 deforms to a specific extent, and a distance between the first mass point P1 located on the surface that is of the pressing part 5310 and that faces the first abutting part 5430 and the first abutting part 5430 decreases, until the first mass point P1 is in contact with the first abutting part 5430 after moving Δx in a negative direction of an X axis. The first terminal 5410 is connected to the dome 530. After the external force is removed, the dome 530 gradually recovers from deformation, the first mass point P1 is separated from the first abutting part 5430, and the distance between the first mass point P1 and the first abutting part 5430 gradually increases, until the first mass point P1 returns to an initial position on which a deformation amount of the dome 530 is zero.

[0197] In some examples, in a state in which no external force is applied, the support part of the dome 530 is in contact with the second abutting part 5450, and the dome 530 is in an electrically connected state with the second terminal 5420. When the external force F is applied to the pressing part 5310, the support part of the dome 530 and the second abutting part 5450 still maintain a state of mutual contact.

[0198] In some examples, in a state in which no external force is applied, the support part of the dome 530 is in contact with the first boss 5533 and the step part 5534, or the support part of the dome 530 is not in contact with the second abutting part 5450, and the dome 530 is not in an electrically connected state with the second terminal 5420. When the external force F is applied to the pressing part 5310, the second mass point P2 that is close to the second abutting part 5450 and that is on the support part of the dome 530 moves in a direction close to the second abutting part 540, until the second mass point P2 is in contact with the second abutting part 5450 after moving Δz in a positive direction of a Z axis. The second terminal 5420 is connected to the dome 530. After the external force is removed, the dome 530 gradually recovers from deformation, the second mass point P2 is separated from the second abutting part 5450, and a distance between the second mass point P2 and the second abutting part 5450 gradually increases, until the second mass point P2 returns to an initial position on which a deformation amount of the dome 530 is zero.

[0199] As described above, under an action of the external force, the dome 530 deforms, and consequently, the dome 530 is connected to the first terminal 5410. The dome 530 and the second terminal 5420 may be in a connected state without an action of an external force, or may be connected to each other after being deformed under an action of an external force. In this way, under the action of the external force, the dome 530 may be connected to both the first terminal 5410 and the second terminal 5420, that is, the first terminal 5410 and the second terminal 5420 are electrically connected to each other.

[0200] Increasing a stroke of the dome 530 in the thickness direction of the switch assembly 500 in a deformation process can improve a pressing feedback effect of the switch assembly 500 to a specific extent. FIG. 24 is a diagram in which the C1 region in FIG. 22 includes only the dome 530, the first terminal 5410, and the second terminal 5420. A surface that is of the first abutting part 5430 of the first terminal 5410 and that is close to the dome 530 may be referred to as a first abutting surface 5433, and a surface that is of the second abutting part 5450 of the second terminal 5420 and that is close to the dome 530 may be referred to as a second abutting surface 5453.

[0201] To describe a relative distance between each of the first abutting surface 5433 and the second abutting surface 5453, and the dome, a vertical distance between any reference point R0 (a highest point on a top surface of the dome 530 is used as an example in FIG. 24) on the top surface of the dome 530 and each of the first abutting surface 5433 and the second abutting surface 5453, namely, a distance in the thickness direction of the switch assembly 500, is considered.

[0202] As shown in FIG. 24, the vertical distance between the reference point R0 and the first abutting surface 5433 is d1, and the vertical distance between the reference point R0 and the second abutting surface 5453 is d2. In some examples, d1 > d2. In some examples, a difference between d1 and d2 may be greater than a preset threshold, so that the dome 530 can have sufficient stroke space in a vertical direction in the deformation process.

[0203] FIG. 25 and FIG. 26 are diagrams of a structure of the bracket 600 of the button module 40 according to an embodiment of this application. The bracket 600 includes a first bracket 610 and a second bracket 620.

[0204] The first bracket 610 may include a cushioning part 6110, a first connection part 6120, and a second connection part 6130, and the first connection part 6120 and the second connection part 6130 are respectively connected to two ends of the cushioning part 6110. The cushioning part 6110 includes a cushioning surface 6111 and an abutting surface 6112 that are disposed opposite to each other. As shown in FIG. 3, the cushioning surface 6111 is disposed away from the switch assembly 500, and the abutting surface 6112 abuts against the protective film 510 of the switch assembly 500. In some examples, both the cushioning surface 6111 and the abutting surface 6112 may be disposed as planes.

[0205] One or more connection posts are disposed on a same side of each of the first connection part 6120 and the second connection part 6130 and the abutting surface 6112. For example, a first connection post 6121 is disposed on a side that is of the first connection part 6120 and that is close to the abutting surface 6112, and a second connection post 6131 is disposed on a side that is of the second connection part 6130 and that is close to the abutting surface 6112. There may be a plurality of first connection posts 6121 and a plurality of second connection posts 6131. For example, as shown in FIG. 25, there are two first connection posts 6121 and two second connection posts 6131.

[0206] The second bracket 620 may include a bridge part 6210, a first end part 6220, and a second end part 6230. The first end part 6220 and the second end part 6230 are respectively connected to two ends of the bridge part 6210. One or more connection holes may be provided on both the first end part 6220 and the second end part 6230. The connection hole may fit the connection post on the first bracket 610. When the connection post on the first bracket 610 is inserted into the connection hole on the second bracket 620, the first bracket 610 and the second bracket 620 may be fastened relative to each other.

[0207] In some examples, as shown in FIG. 26, the first end part 6220 may be provided with a third extension part 6221, and the second end part 6230 may be provided with a fourth extension part 6231. A first connection hole 6222 may be provided on the third extension part 6221 of the first end part 6210, and a second connection hole 6232 may be provided on the fourth extension part 6231 of the second end part 6230. The first connection hole 6222 may fit the first connection post 6121 on the first connection part 6120 of the first bracket 610, and the second connection hole 6232 may fit the second connection post 6131 on the second connection part 6130 of the first bracket 610. A quantity of first connection holes 6222 may match a quantity of first connection posts 6121, and a quantity of second connection holes 6232 may match a quantity of second connection posts 6131.

[0208] Still refer to FIG. 25 and FIG. 26. When the first bracket 610 and the second bracket 620 are assembled or connected in one or more of the foregoing manners, the first bracket 610 may lap over the third extension part 6221 and the fourth extension part 6231. An inner side wall that is of the first bracket 610 and that faces the bridge part 6210 of the second bracket 620 may be referred to as a third abutting surface 6140. An inner side wall that is of the second bracket 620 and that abuts against the third abutting surface 6140 of the first bracket 610 may be referred to as a fourth abutting surface 6241. In some examples, the third abutting surface 6140 and the fourth abutting surface 6241 each include a plurality of curved surfaces and flat surfaces, and shapes of the third abutting surface 6140 and the fourth abutting surface 6241 may match each other, so that when the first bracket 610 is mounted on the second bracket 620, the two brackets can be attached to each other as much as possible.

[0209] The second bracket 620 further includes an exposed surface 6242 disposed opposite to the fourth abutting surface 6241. The exposed surface 6242 may be a plane, to facilitate mounting on the electronic device.

[0210] FIG. 27 is a diagram of assembling the switch assembly 500 and the bracket 600. In some examples, a seventh fastening part 6223 and an eighth fastening part 6333 may be respectively disposed on a side that is of the first end part 6220 and that faces the switch assembly 500 and a side that is of the second end part 6230 and that faces the switch assembly 500. Shapes of the seventh fastening part 6223 and the eighth fastening part 6333 may match shapes of fastening parts disposed on the accommodating member 550, the support plate 560, and the connecting piece group 570 on the switch assembly 500, so as to fasten the switch assembly 500 and the bracket 600.

[0211] In some examples, the accommodating member 550, the support plate 560, and the connecting piece group 570 on the switch assembly 500 include two convex fastening parts. The seventh fastening part 6223 and the eighth fastening part 6333 on the second bracket 620 may both be recessed, as shown in FIG. 26. In this way, the convex fastening part on the switch assembly 500 may be clamped in the recessed fastening part on the second bracket 620, to implement relative fastening between the second bracket 620 and the switch assembly 500.

[0212] In some examples, the accommodating member 550, the support plate 560, and the connecting piece group 570 on the switch assembly 500 include two concave fastening parts. The seventh fastening part 6223 and the eighth fastening part 6333 on the second bracket 620 may both be convex. In this way, the convex seventh fastening part 6223 and the convex eighth fastening part 6333 on the second bracket 620 may be clamped in the concave fastening part on the switch assembly 500, to implement relative fastening between the second bracket 620 and the switch assembly 500.

[0213] In some examples, one convex fastening part and one concave fastening part may be respectively disposed at two ends of the switch assembly 500. One of the seventh fastening part 6223 and the eighth fastening part 6333 on the second bracket 620 may be concave, and the other may be convex. The switch assembly 500 and the second bracket 620 may be fastened to each other through the two groups of fastening parts that are on the switch assembly 500 and the second bracket 620 and that match each other in shape.

[0214] In some examples, the first bracket 610 may be made of a material whose hardness is less than or equal to a first threshold, for example, silicone rubber. When the first bracket interacts with the push rod 520 in the switch assembly 500, the user has better pressing comfort.

[0215] In some examples, the second bracket 620 may be made of a material whose hardness is greater than or equal to a second threshold, for example, an epoxy resin glue or a structural adhesive. The second bracket 620 can support, bear, and cushion the switch assembly 500 to a specific extent, so that the switch assembly 500 is not easily deformed or damaged under an external force. Herein, the second threshold is greater than or equal to the first threshold.

[0216] It should be noted that the first bracket 610 and the second bracket 620 may be further mutually connected in more manners such as adhesive bonding. This is not limited in this application. The bracket 600 and the bracket of the switch assembly 500 may alternatively be fastened in more manners such as adhesive bonding and using a fastener. This is not limited in this application.

[0217] FIG. 28 shows the adapter board 700 according to an embodiment of this application. FIG. 29 is a diagram of an assembling manner between the switch assembly 500 and the adapter board 700.

[0218] The adapter board 700 may include an insertion part 710, a transition connection part 720, and an external connection part 730. One end of the transition connection part 720 is connected to the insertion part 710, and the other end of the transition connection part 720 is connected to the external connection part 730. The insertion part 710 may extend into the second groove 5520 from a notch provided on the switch assembly 500, and is electrically connected to the first contact 5444 and the second contact 5464.

[0219] In some examples, a third contact 711 and a fourth contact 712 are disposed on the insertion part 710, and the third contact 711 and the fourth contact 712 may be connected to a connection line inside the adapter board 700. When the insertion part 710 is mounted on the switch assembly 500, the third contact 711 and the fourth contact 712 may be in contact with the first contact 5444 and the second contact 5464 in the switch assembly 500 respectively, that is, the adapter board 700 is electrically connected to the switch assembly 500.

[0220] In some examples, as shown in FIG. 29, the switch assembly 500 may further include a clamping member 800. When the insertion part 710 of the adapter board 700 extends into the second groove 5520, the clamping member 800 is disposed between the second groove 5520 and the insertion part 710. The clamping member 800 may be disposed, so that the insertion part 710 is more firmly mounted inside the second groove 5520. A shape and a size of the clamping member 800 may be determined based on a shape and a size of the second groove 5520 on the accommodating member 550 and a shape and a size of the insertion part 710.

[0221] For example, the clamping member 800 is in a U-shaped ring shape, and a distance h1 between two outer arm sides of the clamping member 800 should be slightly less than a width of a groove opening of the second groove 5520, so that the clamping member 800 can be accommodated in the second groove 5520. A distance h2 between two inner arm sides of the clamping member 800 should be slightly greater than a width of the insertion part 710, so that the insertion part 710 can be accommodated in the clamping member 800.

[0222] There is a first spacing between two ends of the transition connection part 720. The first spacing may meet the following: When the insertion part 710 of the adapter board 700 extends into the second groove 5520 of the switch assembly 500, the two ends of the transition connection part 720 can be sleeved outside the accommodating member 550 and the support plate 560. In other words, the first spacing should be slightly greater than a sum of a thickness of the accommodating member 550 and a thickness of the support plate 560.

[0223] In some examples, the transition connection part 720 may be in an arc (rounded corner) bent shape or a right-angle bent shape, or the transition connection part 720 may be in a curved surface bent shape, or includes a plurality of mutually connected planes. The plurality of planes are mutually inclined, for example, an acute included angle, a right included angle, or an obtuse included angle is formed between two adjacent planes.

[0224] The external connection part 730 may be configured to be electrically connected to another circuit component or electronic component, for example, connected to a circuit board that provides power for the second button module 40.

[0225] Based on a similar principle, this application further provides a first combined button shown in FIG. 30. The first combined button may include a plurality of second button modules shown in FIG. 3. Adapter boards of different button modules may be jointly connected to a circuit that can provide power and control signal lights for these button modules. The first combined button may include three button modules: a "volume +" button module, a "volume-" button module, and a power button module.

[0226] As shown in FIG. 31, an embodiment of this application further provides a second combined button. The second combined button may include one second button module (for example, referred to as a fifth button module) shown in FIG. 3 and one first button pair. An adapter board of the first button pair and an adapter board of another button module may be jointly connected to a circuit that can provide power and control signal lights for them.

[0227] In some examples, the first button pair may include a third button module and a fourth button module, and are configured to implement functional components of the third button module and the fourth button module. For example, a protective film, a push rod, a dome, and a terminal pair may be accommodated in one accommodating member. Terminal pairs of the two button modules may be mutually connected and then connected to one adapter board. The first button pair may include three connection contacts. Correspondingly, three connection contacts may be accordingly disposed on the adapter board corresponding to the first button pair.

[0228] An abutting part, a push rod, and the like of a terminal pair of a third button module in the first button pair may be accommodated in a first groove of the accommodating member, and an abutting part, a push rod, and the like of a terminal pair of a fourth button module may be accommodated in a second groove of the accommodating member. The three connection contacts of the first button pair may be accommodated in a third groove of the foregoing accommodating member.

[0229] For example, the third button module and the fourth button module in the first button pair may be respectively the "volume +" button module and the "volume -" button module, and the fifth button module may be the power button module.

[0230] As shown in FIG. 32, an embodiment of this application further provides a third combined button. The third combined button may include a sixth button module, a seventh button module, and an eighth button module that share a same accommodating member. In other words, functional components configured to implement functions of the three button modules, for example, a protective film, a push rod, a dome, and a terminal pair, may be accommodated in one accommodating member. Terminal pairs of the three button modules may be mutually connected and then connected to one adapter board. The third combined button may be provided with four or five connection contacts. Correspondingly, an adapter board corresponding to the third combined button may be provided with four or five connection contacts accordingly. The adapter board of the third combined button may be configured to connect to a circuit that provides power, a control signal, and the like for the third combined button.

[0231] Abutting parts of terminal pairs, push rods, and the like of the three button modules of the third combined button may be respectively accommodated in three different grooves of the accommodating member, and contacts of the terminal pairs of the three button modules may be jointly accommodated in another groove of the foregoing accommodating member. The third combined button may be provided with four, five, or six connection contacts.

[0232] For example, the sixth button module, the seventh button module, and the eighth button module may be respectively a "volume +" button module, a "volume-" button module, and a power button module.

[0233] In an actual production and manufacturing process, the switch assembly, the button module, and the combined button may be prepared by using different processing technologies. This is not limited in this application.

[0234] In some examples, in a preparation process of the switch assembly, the terminal pair may be first prepared by using a stamping process, and then an accommodating member that accommodates a terminal pair, a dome, a push rod, and the like is formed by using an injection molding process based on a terminal pair of a determined shape. As shown in FIG. 11 above, one or more holes 5513 that are provided on a region, close to the first groove 5510, of a back surface of the accommodating member 550 are positioning holes for the terminal pair 540 during injection molding, and the first protruding part 5514 disposed on a side of the first notch 5523 of the accommodating member 550 is a protruding structure corresponding to the injection molding process. After the accommodating member is formed through injection molding, a support plate, for example, a steel sheet, may be further disposed on the back surface of the accommodating member. The dome, the push rod, and a protective film that is disposed in the accommodating member and that covers a top of a groove provided on the accommodating member may be further mounted on the accommodating member.

[0235] The adapter board connected to the switch assembly and the contact of the switch assembly may be fastened through a laser spot welding process. In some examples, to reinforce a connection between the adapter board and the switch assembly, a protective medium, for example, an underfill adhesive, may be further filled around a contact through which the adapter board is connected to the switch assembly.

[0236] The foregoing descriptions are merely specific implementations of this application, but are not intended to limit the protection scope of this application. Any variation or replacement readily figured out by a person skilled in the art within the technical scope disclosed in this application shall fall within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. A switch assembly (500), comprising: an accommodating member (550), a dome (530), a push rod (520), a protective film (510), a first terminal (5410), and a second terminal (5420), wherein the dome (530), the push rod (520), the first terminal (5410), and the second terminal (5420) are accommodated in the accommodating member (550); the first terminal (5410) and the second terminal (5420) are spaced from each other, the first terminal (5410) comprises a first abutting part (5430) and a first contact (5444), the second terminal (5420) comprises a second abutting part (5450) and a second contact (5464), and the first contact (5444) and the second contact (5464) are configured to electrically connect the switch assembly (500) to an external circuit; the dome (530) and the first abutting part (5430) are spaced from each other, and the dome (530) is in contact with the second abutting part (5450); the push rod (520) is located on a surface that is of the dome (530) and that is away from the first abutting part (5430); the protective film (510) is located on a side that is of the push rod (520) and that is away from the dome (530); and the first contact (5444) and the second contact (5464) are disposed adjacently, the first contact (5444) and the second contact (5464) are located outside a range of a projection of the protective film (510) on a first plane, the first contact (5444) and the second contact (5464) are located on a same side of the protective film (510), and the first plane is a plane on which the accommodating member (550) is located.

2. The switch assembly (500) according to claim 1, wherein the first terminal (5410) further comprises a first connection section, the first abutting part (5430) and the first contact (5444) are connected to each other through the first connection section, the first connection section comprises a first adapter part (5441), and a plane on which the first adapter part (5441) is located and the first plane are inclined.

3. The switch assembly (500) according to claim 1 or 2, wherein the second terminal (5420) further comprises a second connection section, the second abutting part (5450) and the second contact (5464) are connected to each other through the second connection section, the second connection section comprises a fourth adapter part (5461), and a plane on which the fourth adapter part (5461) is located and the first plane are inclined.

4. The switch assembly (500) according to any one of claims 1 to 3, wherein the first abutting part (5430) comprises a first abutting surface (5433), the second abutting part (5450) comprises a second abutting surface (5453), and a distance from a first reference point on the dome (530) to the first abutting surface (5433) is greater than a distance from the first reference point to the second abutting surface (5453).

5. The switch assembly (500) according to any one of claims 1 to 4, wherein an embedding part (5432) is disposed at an end that is of the first abutting part (5430) and that is away from the first contact (5444), and the embedding part (5432) is embedded in the accommodating member (550).

6. The switch assembly (500) according to any one of claims 1 to 5, wherein the second abutting part (5450) is partially embedded in the accommodating member (550).

7. The switch assembly (500) according to any one of claims 1 to 6, wherein the accommodating member (550) comprises a first accommodating body and a second accommodating body, the first abutting part (5430), the second abutting part (5450), the dome (530), and the push rod (520) are accommodated in the first accommodating body, and the first contact (5444) and the second contact (5464) are accommodated in the second accommodating body.

8. The switch assembly (500) according to claim 7, wherein a bottom of the first accommodating body is provided with a first sub-accommodating body and a second sub-accommodating body, the second sub-accommodating body is disposed around the first sub-accommodating body, the first abutting part (5430) is accommodated in the first sub-accommodating body, and the second abutting part (5450) is accommodated in the second sub-accommodating body; and a bottom of the second accommodating body is provided with a third sub-accommodating body and a fourth sub-accommodating body, the first contact (5444) is accommodated in the third sub-accommodating body, and the second contact (5464) is accommodated in the fourth sub-accommodating body.

9. The switch assembly (500) according to claim 8, wherein a bottom of the accommodating member (550) is provided with a first channel (5540), the first channel (5540) is for communication between the first sub-accommodating body and the third sub-accommodating body, the first terminal (5410) further comprises the first connection section, the first connection section is connected to the first abutting part (5430) and the first contact (5444), and the first connection section is accommodated in the first channel (5540).

10. The switch assembly (500) according to claim 8 or 9, wherein the bottom of the accommodating member (550) is provided with a second channel (5550), the second channel (5550) is for communication between the second sub-accommodating body and the fourth sub-accommodating body, the second terminal (5420) further comprises the second connection section, the second connection section is connected to the second abutting part (5450) and the second contact (5464), and the second connection section is accommodated in the second channel (5550).

11. The switch assembly (500) according to claim 9, wherein the first channel (5540) comprises a first bent part (5541), an extension direction of the first bent part (5541) is inclined relative to the first plane, the first connection section comprises the first adapter part (5441), and the first adapter part (5441) is attached to an inner wall of the first bent part (5541).

12. The switch assembly (500) according to claim 10, wherein the second channel (5550) comprises a second bent part (5551), an extension direction of the second bent part (5551) is inclined relative to the first plane, the second connection section comprises the fourth adapter part (5461), and the fourth adapter part (5461) is attached to an inner wall of the second bent part (5551).

13. The switch assembly (500) according to any one of claims 7 to 12, wherein both the first accommodating body and the second accommodating body are grooves, the first accommodating body and the second accommodating body are spaced from each other, and a top surface of a groove wall of the first accommodating body is located on a side that is of a top surface of a groove wall of the second accommodating body and that is away from a back surface of the accommodating member (550).

14. The switch assembly (500) according to any one of claims 8 to 13, wherein both the first sub-accommodating body and the second sub-accommodating body are grooves, the first sub-accommodating body and the second sub-accommodating body are spaced by a first sub-groove wall (5531), and an arc-shaped first boss (5533) is disposed on a top of the first sub-groove wall (5531).

15. The switch assembly (500) according to any one of claims 7 to 14, wherein the first accommodating body is a groove, and the protective film (510) covers a top surface of a side wall of the first accommodating body.

16. The switch assembly (500) according to any one of claims 7 to 15, wherein both the first accommodating body and the second accommodating body are grooves, the switch assembly (500) further comprises a first connecting piece (571) and a second connecting piece (572), the first connecting piece (571) and the second connecting piece (572) are located on a same surface of the accommodating member (550), the first connecting piece (571) covers the second accommodating body, the second connecting piece (572) is located at an end that is of the accommodating member (550) and that is away from the second accommodating body, and a surface that is of the first connecting piece (571) and that is away from the accommodating member (550) and a surface that is of the second connecting piece (572) and that is away from the accommodating member (550) are located on a same plane.

17. The switch assembly (500) according to any one of claims 1 to 16, wherein two ends of the accommodating member (550) further comprise a convex and / or concave fastening structure.

18. The switch assembly (500) according to any one of claims 1 to 17, wherein the switch assembly (500) further comprises a support plate (560), the support plate (560) is connected to the back surface of the accommodating member (550), and the support plate is a fiber reinforced plate or a metal plate.

19. A button module (40), comprising a bracket (600), an adapter board (700), and the switch assembly (500) according to any one of claims 1 to 18, wherein the bracket (600) is configured to fasten the switch assembly (500); and the adapter board (700) comprises a third contact (711) and a fourth contact (712), the third contact (711) is electrically connected to the first contact (5444) of the switch assembly (500), and the fourth contact (712) is electrically connected to the second contact (5464) of the switch assembly (500).

20. The button module (40) according to claim 19, wherein a first notch (5523) is provided on a side that is of the accommodating member (550) of the switch assembly (500) and that faces the adapter board (700); and the adapter board (700) comprises an insertion part (710) and a transition connection part (720), the insertion part (710) comprises the third contact (711) and the fourth contact (712), the insertion part (710) extends into the accommodating member (550), the transition connection part (720) is connected to the insertion part (710), and the transition connection part (720) is at least partially accommodated in the first notch (5523).

21. The button module (40) according to claim 19 or 20, wherein a first positioning part and a second positioning part are respectively disposed at two opposite ends of the switch assembly (500), a third positioning part and a fourth positioning part are disposed on a surface that is of the bracket (600) and that faces the switch assembly (500), the first positioning part fits the third positioning part, the second positioning part fits the fourth positioning part, and the first positioning part, the second positioning part, the third positioning part, and the fourth positioning part are configured to fasten the switch assembly (500) to the bracket (600).

22. The button module (40) according to claim 21, wherein the bracket (600) comprises a first bracket (610) and a second bracket (620), the first bracket (610) is fastened to the second bracket (620), the first bracket (610) is located above the dome (530) of the switch assembly (500), and the second bracket (620) is at least partially located at two ends of the switch assembly (500); and the first bracket (610) is made of a material whose hardness is less than or equal to a first threshold, the second bracket (620) is made of a material whose hardness is greater than or equal to a second threshold, and the first threshold is less than or equal to the second threshold.

23. A combined button, comprising: an accommodating member, an adapter board, a first switch assembly, and a second switch assembly, wherein the first switch assembly comprises a first terminal and a second terminal, the first terminal comprises a first abutting part and a first contact, and the second terminal comprises a second abutting part and a second contact; the second switch assembly comprises a third terminal and a fourth terminal, the third terminal comprises a third abutting part and a third contact, and the fourth terminal comprises a fourth abutting part and the second contact; the accommodating member is provided with a first groove, a second groove, and a third groove; the first abutting part and the second abutting part are accommodated in the first groove, the third abutting part and the fourth abutting part are accommodated in the second groove, and the first contact, the second contact, and the third contact are comprised in the third groove; and the adapter board extends into the third groove and is electrically connected to the first contact, the second contact, and the third contact.

24. The combined button according to claim 23, wherein the combined button further comprises a third switch assembly, wherein the third switch assembly comprises a fifth terminal and a sixth terminal, the fifth terminal comprises a fifth abutting part and the third contact, and the sixth terminal comprises a sixth abutting part and a fourth contact; the accommodating member is further provided with a fourth groove, and the fifth abutting part and the sixth abutting part are accommodated in the fourth groove; the fourth contact is further accommodated in the third groove; and the adapter board is further electrically connected to the fourth contact.

25. An electronic device, comprising a middle frame, a button cap, and the button module according to any one of claims 19 to 23, wherein the button cap is fastened to the middle frame, and the button cap abuts against the first bracket of the button module.

26. The electronic device according to claim 25, wherein the electronic device comprises a first display, a second display, and a cover, wherein the second display is disposed opposite to the first display, and the button module is located between the first display and the second display; or the cover is disposed opposite to the first display, and the button module is located between the first display and the cover.

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