Key assembly and input device

Abstract

The embodiment of the utility model discloses a key assembly and an input device, a reset part and a pressing part are arranged on a seat part, and a moving body and a supporting body are elastically connected. Meanwhile, the containing hole is used for containing the reset part and the pressing part, so that in the process that the pressing part drives the moving body to move, reset elastic force acting on the pressing part is generated through the reset part. Therefore, on one hand, the trigger head is arranged at the first connecting end, and the reset part and the pressing part are fixed together through the cooperation of the second connecting end and the connecting piece. Meanwhile, when the connecting piece is provided with the bonding face, the operator can connect the second connecting end and the connecting piece together in a bonding mode. When the connecting piece is provided with the positioning groove, an operator can directly fix the second connecting end and the positioning groove together. Therefore, by utilizing the first clamping surface and the second clamping surface which are arranged oppositely, the assembly process of the key assembly is simplified, and the connection stability of the pressing part and the resetting part is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of keyboards, in particular to a key component and an input device. Background Art

[0002] The membrane keyboard uses an elastic membrane to drive the key to reset. During the process of the elastic membrane driving the key to move, the elastic membrane and the key need to be stably connected. At the same time, the convenience of assembling the elastic membrane and the key also needs to be considered. How to simplify the connection between the elastic membrane and the key and make the connection between the two more stable has become a problem that needs to be solved. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides a button assembly and an input device, which simplifies the installation of the pressing part and the reset part and improves the stability of the connection between the pressing part and the reset part by utilizing the cooperation between the bonding surface or positioning groove set on the connecting member and the second connecting end.

[0004] According to a first aspect of an embodiment of the utility model, a key assembly is provided, the key assembly comprising:

[0005] A seat portion having a receiving hole, wherein the receiving hole passes through the seat portion;

[0006] a reset portion, at least partially disposed in the accommodating hole and comprising a moving body and a supporting body, wherein the moving body is elastically connected to the supporting body, the moving body comprises a connecting column and a trigger head, the connecting column has a first connecting end and a second connecting end, and the trigger head is convexly disposed on the first connecting end; and

[0007] The pressing part includes a keycap and a connecting piece, the keycap has a pressing surface and a layout surface that are opposite to each other, the connecting piece is arranged in the central area of ​​the layout surface and extends into the accommodating hole, the connecting piece is provided with a bonding surface or a positioning groove, the positioning groove has a first clamping surface and a second clamping surface that are arranged at intervals, the second clamping surface surrounds the first clamping surface, the first clamping surface and the second clamping surface extend along the axial direction of the connecting column, the second connecting end is bonded to the connecting piece through the bonding surface or fixedly connected through the positioning groove, the connecting piece drives the trigger head to approach or move away from the support body in a straight line, and the reset part generates a reset elastic force.

[0008] Furthermore, the button assembly also includes an adhesive;

[0009] The end surface of the second connection end and the bonding surface are both planes and are arranged opposite to each other, and the adhesive is applied between the end surface of the second connection end and the bonding surface.

[0010] Furthermore, the bottom of the positioning groove also has a positioning surface, the connecting member includes a connecting rod and a wall plate, the positioning surface is an annular surface and surrounds the connecting rod, the wall plate is arranged on the peripheral side of the positioning surface, and the first clamping surface is a cylindrical surface and is arranged on the side of the connecting rod, and the second clamping surface is arranged on the wall plate;

[0011] The connecting column is an elastic component, and a connecting hole is provided on the end surface of the second connecting end;

[0012] The end surface of the second connecting end abuts against the positioning surface, and the wall plate abuts against a portion of the outer wall of the connecting column through the second clamping surface. The connecting hole abuts against the first clamping surface and generates an elastic deformation that expands toward the second clamping surface.

[0013] Furthermore, the wall plate is a cylindrical member, and the cylindrical member is convexly arranged on the layout surface and surrounds the positioning surface;

[0014] The end surface of the cylindrical member close to the supporting body is flush with the end surface of the connecting rod.

[0015] Furthermore, the connecting member further comprises a positioning platform, the positioning platform is convexly arranged on the layout surface, and the positioning surface is located on the top of the positioning platform;

[0016] The wall plate includes a plurality of plate bodies, the plurality of plate bodies are convexly arranged on the layout surface and evenly distributed along the circumference of the positioning platform, and the plate bodies extend along the lateral direction of the positioning platform;

[0017] The edge of the plate body close to the support body is flush with the end surface of the connecting rod.

[0018] Further, the receiving hole includes a first connecting port and a second connecting port;

[0019] The pressing portion further includes a positioning member, the positioning member is disposed on the layout surface and includes a contact surface disposed opposite to the support body and facing the second connection port, and the positioning member extends into the accommodating hole through the first connection port;

[0020] The support body is an elastic component, and has a circular surface and a mounting surface, the circular surface is away from the mounting surface, the circular surface faces the contact surface, and the center of the circular surface corresponds to the trigger head;

[0021] The trigger head moves to the second connection port, the contact surface abuts against the annular surface, and a portion of the annular surface is deformed and recessed toward the mounting surface.

[0022] Furthermore, the number of the positioning members is two and they are arranged opposite to each other, and the positioning members further include hooks, and the two hooks are bent toward two sides of the two positioning members;

[0023] The inner wall of the accommodating hole is provided with two slots corresponding to the two hooks, the slots are recessed from the inner wall of the accommodating hole toward the outer side of the seat, and the slots extend along the axial direction of the accommodating hole, the pressing part drives the moving body to move, and the hooks are located in the corresponding slots and move along the extension direction of the slots;

[0024] The reset portion is in a free state, and a second avoidance gap is formed between the hook head and a side wall of the clamping slot close to the first connection port.

[0025] Furthermore, the positioning member further comprises a buffer slope, the two buffer slopes of the two positioning members are away from each other, the buffer slopes are located between the hook head and the layout surface, and the spacing between the two buffer slopes close to the layout surface is greater than the spacing close to the hook head;

[0026] The pressing portion moves along the axial direction of the accommodating hole, the two buffer inclined surfaces slide on the inner wall of the accommodating hole close to the first connecting port, and the two positioning members generate an elastic bending amount to approach each other.

[0027] Furthermore, the pressing portion further includes:

[0028] Two guide members, the two guide members are arranged at intervals, and in the circumferential direction of the receiving hole, the two guide members and the two positioning members are staggered, and the guide members include guide strips;

[0029] The inner wall of the accommodating hole is provided with two guide grooves corresponding to the two guide strips. The guide grooves are recessed toward the outer side of the seat portion and extend along the axial direction of the accommodating hole. The guide strips are slidably disposed in the guide grooves.

[0030] In a second aspect, an embodiment of the utility model further provides an input device, the input device comprising:

[0031] The key assembly described in the first aspect above.

[0032] In the key assembly and input device of the embodiment of the utility model, the reset part and the pressing part are arranged on the seat, and the moving body and the supporting body are elastically connected. At the same time, the reset part and the pressing part are accommodated in the accommodating hole, so that in the process of the pressing part driving the moving body to move, the reset elastic force acting on the pressing part is generated by the reset part. Thus, on the one hand, the trigger head is arranged at the first connecting end, and the reset part and the pressing part are fixed together by the cooperation between the second connecting end and the connecting member. At the same time, when the connecting member is provided with an adhesive surface, the operator can connect the second connecting end to the connecting member by bonding. When the connecting member is provided with a positioning groove, the operator can fix the second connecting end directly to the positioning groove. Thus, by using the first clamping surface and the second clamping surface arranged relatively to each other, the assembly process of the key assembly is simplified, and the stability of the connection between the pressing part and the reset part is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0034] Figure 1 It is a structural schematic diagram of an input device according to an embodiment of the utility model;

[0035] Figure 2 It is a structural schematic diagram of one side of the key assembly of an embodiment of the utility model;

[0036] Figure 3 It is a structural schematic diagram of the other side of the key assembly of an embodiment of the utility model;

[0037] Figure 4 It is an exploded schematic diagram of a key assembly of an embodiment of the utility model;

[0038] Figure 5 It is a cross-sectional schematic diagram of one side of the key assembly of an embodiment of the utility model;

[0039] Figure 6 is a cross-sectional schematic diagram of the other side of the key assembly of an embodiment of the utility model;

[0040] Figure 7 It is a structural schematic diagram of the seat portion of an embodiment of the utility model;

[0041] Figure 8 This is a schematic diagram of the working state of the key assembly of the embodiment of the utility model;

[0042] Fig. 9 is a schematic cross-sectional view of the key assembly of the embodiment of the utility model in other implementations;

[0043] Fig.10is an exploded schematic diagram of the key assembly of the embodiment of the utility model in other implementation modes;

[0044] Fig.11 is a schematic cross-sectional view of the key assembly of the embodiment of the utility model in some other implementations;

[0045] Fig.12 It is an exploded schematic diagram of the key assembly of the embodiment of the utility model in some other implementation modes.

[0046] Description of reference numerals:

[0047] 1- Pressing part;

[0048] 11- positioning member; 111- contact surface;

[0049] 12-key cap; 121-layout surface; 122-pressing surface;

[0050] 13-connecting member; 131-connecting rod; 132-positioning surface; 133-wall plate; 1331-plate body; 134-positioning groove; 135-positioning platform; 136-adhesive surface; 137-adhesive;

[0051] 14-hook head;

[0052] 15- buffer slope;

[0053] 16-guide member; 161-guide strip;

[0054] 2- Seat;

[0055] 21-accommodation hole; 211-first connection port; 212-second connection port; 213-card slot; 214-guide slot;

[0056] 3-Reset unit;

[0057] 31-moving body; 311-trigger head; 312-connecting column; 3121-first connecting end; 3122-second connecting end;

[0058] 313-blind hole; 3131-deformation hole; 3132-connection hole;

[0059] 32-support body; 321-annular surface; 322-mounting surface;

[0060] 41-first position; 42-second position; 43-third position; 44-first avoidance gap; 45-second avoidance gap;

[0061] 5- bottom shell;

[0062] 6- Circuit board;

[0063] 61-contact;

[0064] 71 - first clamping surface; 72 - second clamping surface. DETAILED DESCRIPTION

[0065] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. For those skilled in the art, the present invention can be fully understood without the description of these details. In order to avoid confusing the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0066] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0067] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0068] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0069] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0070] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0071] Figure 1 1 is a schematic diagram of the structure of the input device of this embodiment. The input device in the figure includes a bottom shell 5, a circuit board 6 and a plurality of key components arranged at intervals on the circuit board 6. The input device can be a keyboard.

[0072] Figure 2 and Figure 3 Schematic diagram of the structure of the key assembly of this embodiment. Figure 4 Schematic diagram of the explosion of the key assembly of this embodiment.

[0073] In some embodiments, Figure 2-Figure 4 As shown, the key assembly includes a pressing portion 1, a seat portion 2 and a reset portion 3.

[0074] Figure 5 and Figure 6 2 is a schematic cross-sectional view of the key assembly of this embodiment. Figure 7 Schematic diagram of the structure of the seat 2 of this embodiment.

[0075] Further reference Figure 5-Figure 7 As shown, the seat 2 has a receiving hole 21. The receiving hole 21 passes through the seat 2. The receiving hole 21 includes a first connection port 211 and a second connection port 212. The first connection port 211 and the second connection port 212 are respectively located at two ends of the receiving hole 21, that is, the first connection port 211 and the second connection port 212 are respectively located on two sides of the seat 2.

[0076] The reset portion 3 is at least partially disposed in the accommodating hole 21, and includes a moving body 31 and a supporting body 32, and the moving body 31 is elastically connected to the supporting body 32. The moving body 31 includes a connecting column 312 and a trigger head 311, the connecting column 312 has a first connecting end 3121 and a second connecting end 3122, and the trigger head 311 is protruded from the first connecting end 3121.

[0077] Optionally, the reset portion 3 in this embodiment further includes a deformation body, which is located between the moving body 31 and the supporting body 32, so that the reset portion 3 can drive the relative movement between the moving body 31 and the supporting body 32 through the elastic deformation of the deformation body.

[0078] The pressing portion 1 includes a keycap 12 and a connecting member 13. The keycap 12 has a pressing surface 122 and a layout surface 121 that are opposite to each other, and the connecting member 13 is arranged in the central area of ​​the layout surface 121 and extends into the accommodating hole 21. The connecting member 13 is provided with a bonding surface 136 or a positioning groove 134. The positioning groove 134 has a first clamping surface 71 and a second clamping surface 72 that are oppositely and spaced apart, and the second clamping surface 72 surrounds the first clamping surface 71, and the first clamping surface 71 and the second clamping surface 72 extend along the axial direction of the connecting column 312. That is, the first clamping surface 71 and the second clamping surface 72 are arranged on the side walls of the positioning groove 134.

[0079] When the second connection end 3122 is bonded to the connection member 13 via the bonding surface 136, the operator may first apply the adhesive 137, which may be AB glue, to the bonding surface 136. Then, the second connection end 3122 is abutted against the bonding surface 136 and left to stand for a certain period of time to allow the adhesive 137 to solidify.

[0080] When the second connection end 3122 is fixedly connected to the connection member 13 through the positioning groove 134, the operator can directly insert the second connection end 3122 into the positioning groove 134. During this process, the first clamping surface 71 and the second clamping surface 72 will clamp the second connection end 3122, thereby achieving a fixed connection between the pressing portion 1 and the reset portion 3. In this form, the installation time of the key assembly can be accelerated and the stability of the connection can be improved.

[0081] In this embodiment, the connecting member 13 drives the trigger head 311 to move closer to or away from the support body 32 in a straight line, and the reset portion 3 generates a reset elastic force. Therefore, when the operator's finger moves away from the keycap 12 or reduces the pressing force on the keycap 12, the key assembly can be pushed up again by the reset elastic force of the reset portion 3.

[0082] In summary, in the key assembly of the present embodiment, the reset portion 3 and the pressing portion 1 are arranged on the seat portion 2, and the moving body 31 and the supporting body 32 are elastically connected. At the same time, the accommodating hole 21 is used to accommodate the reset portion 3 and the pressing portion 1, so that in the process of the pressing portion 1 driving the moving body 31 to move, the reset elastic force acting on the pressing portion 1 is generated by the reset portion 3. Therefore, on the one hand, the trigger head 311 is arranged on the first connecting end 3121, and the reset portion 3 and the pressing portion 1 are fixed together by the cooperation of the second connecting end 3122 and the connecting member 13. At the same time, when the connecting member 13 is provided with an adhesive surface 136, the operator can connect the second connecting end 3122 to the connecting member 13 by bonding. When the connecting member 13 is provided with a positioning groove 134, the operator can directly fix the second connecting end 3122 to the positioning groove 134. Therefore, by utilizing the first clamping surface 71 and the second clamping surface 72 that are arranged opposite to each other, the assembly process of the key assembly is simplified, and the stability of the connection between the pressing portion 1 and the resetting portion 3 is improved.

[0083] In some embodiments, Figure 4-Figure 6 As shown, the key assembly further includes an adhesive 137. The end surface of the second connection end 3122 and the adhesive surface 136 are both planes and are arranged opposite to each other, and the adhesive 137 is applied between the end surface of the second connection end 3122 and the adhesive surface 136. Thus, the end surface of the second connection end 3122 and the adhesive surface 136 are bonded together by the adhesive 137, which simplifies the connection structure of the connecting member 13 and the connecting column 312. This makes the overall weight of the pressing part 1 and the moving body 31 lighter, and the rebound speed of the pressing part 1 is faster.

[0084] Fig. 9 It is a cross-sectional schematic diagram of the key assembly of this embodiment in other implementation modes. Fig.10 It is an exploded schematic diagram of the key assembly of this embodiment in other implementation modes. Fig.11 Schematic cross-sectional views of the key assembly of this embodiment in some further implementations. Fig.12 Schematic diagram of the explosion of the key assembly of this embodiment in some other implementations. Figure 9-12 The seat 2 is not shown.

[0085] In some embodiments, Figure 9-12 As shown, the bottom of the positioning groove 134 has a positioning surface 132. The positioning surface 132 and the end surface of the second connecting end 3122 are both planes. The second connecting end 3122 is fixed to the positioning groove 134, and the end surface of the second connecting end 3122 abuts against the positioning surface 132.

[0086] In this embodiment, the end of the second connection end 3122 and the positioning surface 132 are configured to limit the depth of the connection column 312 inserted into the positioning groove 134. Thus, the position accuracy of the connection member 13 to the second connection port 212, that is, the position accuracy of the connection member 13 to the contact 61 is ensured.

[0087] In some embodiments, Figure 9-12 As shown, the connecting member 13 includes a connecting rod 131 and a wall plate 133. The positioning surface 132 is an annular surface and surrounds the connecting rod 131, and the wall plate 133 is arranged on the peripheral side of the positioning surface 132. At the same time, the first clamping surface 71 is configured as a cylindrical surface and is arranged on the side of the connecting rod 131, and the second clamping surface 72 is arranged on the wall plate 133. Thus, a positioning groove 134 is formed by the wall plate 133, the positioning surface 132 and the connecting rod 131.

[0088] The connecting column 312 is an elastic component. A connecting hole 3132 is provided on the end face of the second connecting end 3122. When the end face of the second connecting end 3122 is in contact with the positioning surface 132, the wall plate 133 contacts part of the outer wall of the connecting column 312 through the second clamping surface 72, and the connecting hole 3132 contacts the first clamping surface 71, so that the connecting hole 3132 generates an elastic deformation amount that expands toward the second clamping surface 72. That is, part of the outer wall of the connecting column 312 contacts the wall plate 133, the connecting rod 131 extends into the connecting hole 3132, and the connecting hole 3132 generates an elastic deformation amount that expands toward the wall plate 133. At the same time, the second connecting end 3122 is squeezed by the wall plate 133, and the outer wall of the second connecting end 3122 also generates an elastic deformation amount that contracts toward the connecting rod 131.

[0089] In this embodiment, the connecting column 312 is fixed to the connecting member 13 by the elastic deformation generated by the second connecting end 3122 , thereby ensuring a stable connection between the second connecting end 3122 and the connecting member 13 .

[0090] In some embodiments, Figure 8-Figure 9 As shown, the wall plate 133 is a cylindrical member. The cylindrical member is convexly arranged on the layout surface 121 and surrounds the positioning surface 132. The second clamping surface 72 in the above embodiment is formed on the inner wall of the cylindrical member, that is, the second clamping surface 72 is a cylindrical surface.

[0091] The end surface of the cylindrical member close to the support body 32 is flush with the end surface of the connecting rod 131. Therefore, it is convenient for the cylindrical member and the connecting rod 131 to apply a pressing force to the second connecting end 3122 together.

[0092] Optionally, a blind hole 313 is opened at the end of the second connecting end 3122. The blind hole 313 is composed of a deformation hole 3131 and a connecting hole 3132, and the connecting hole 3132 is far away from the bottom of the blind hole 313.

[0093] Preferably, the diameter of the connecting member 13 is configured to be slightly larger than the diameter of the connecting hole 3132. At the same time, a step hole is provided on the connecting member 13. The diameter of the large diameter end of the step hole is configured to be slightly smaller than the outer diameter of the connecting column 312. Therefore, on the one hand, when the connecting column 312 is inserted into the positioning groove 134, the large diameter end of the step hole can squeeze the connecting column 312 together with the connecting rod 131, causing the connecting column 312 to be compressed and deformed, thereby making the connecting column 312 and the pressing part 1 stably fixed together. On the other hand, the top of the blind hole 313 is in a suspended state (such as Fig. 9 On the other hand, the wall panels 133 arranged around the connecting rod 131 can ensure that the connecting hole 3132 holds the connecting rod 131 tightly, and prevent the connecting hole 3132 from expanding outward from the connecting rod 131 during the pressing process of the pressing part 1, causing the connecting member 13 to extend into the deformation hole 3131, thereby reducing the elastic force of the reset part 3.

[0094] In some embodiments, Figure 11-Figure 12 As shown, the connecting member 13 further includes a positioning platform 135 . The positioning platform 135 is protruded from the layout surface 121 , and the positioning surface 132 is located on the top of the positioning platform 135 .

[0095] The wall plate 133 includes a plurality of plates 1331. The plurality of plates 1331 are convexly arranged on the layout surface 121 and are evenly distributed along the circumference of the positioning platform 135, and the plates 1331 extend along the lateral direction of the positioning platform 135. The edge of the plate 1331 close to the support body 32 is flush with the end surface of the connecting rod 131. The second clamping surface 72 in the above embodiment includes a plurality of regions, and the plurality of regions are respectively formed on the plurality of plates 1331.

[0096] The multiple plates 1331 in this embodiment cooperate with the connecting rod 131 to compress the side wall of the connecting hole 3132, ensuring that the connecting column 312 is stably connected to the positioning groove 134. At the same time, when the connecting column 312 is clamped in the positioning groove 134, the elastic deformation of the connecting column 312 can be reduced, so that the connecting column 312 can be more easily inserted into the positioning groove 134.

[0097] Figure 8 Schematic diagram of the working state of the key assembly of this embodiment. Figure 8 State I, state II and state III in the figure are respectively different positions of the pressing part 1 and the corresponding deformation of the reset part 3 during the movement of the pressing part 1 toward the circuit board 6. The distance L1 is the movement stroke of the pressing part 1 from state I to state II. The distance L2 is the movement stroke of the pressing part 1 from state II to state III.

[0098] In some embodiments, Figure 5-Figure 8As shown, the receiving hole 21 includes a first connecting port 211 and a second connecting port 212 .

[0099] The pressing portion 1 further includes a positioning member 11 . The positioning member 11 is disposed on the layout surface 121 and includes a contact surface 111 disposed opposite to the support body 32 and facing the second connection port 212 . The positioning member 11 extends into the receiving hole 21 through the first connection port 211 .

[0100] The support body 32 is an elastic component and has an annular surface 321 and a mounting surface 322 . The annular surface 321 and the mounting surface 322 are separated from each other, the annular surface 321 faces the contact surface 111 , and the center of the annular surface 321 corresponds to the trigger head 311 .

[0101] The trigger head 311 moves to the second connection port 212, the contact surface 111 abuts against the annular surface 321, and the contact surface 111 presses a portion of the annular surface 321 to be concave and deformed toward the mounting surface 322 (such as Figure 8 (shown in state III).

[0102] The mounting surface 322 in this embodiment is used to connect the reset portion 3 and the circuit board 6, so that the reset portion 3 can be stably arranged on the circuit board 6. When the positioning member 11 presses against the support body 32, the support body 32 will be compressed, thereby reducing the falling speed of the pressing portion 1. The impact force of the trigger head 311 on the contact 61 is reduced. At the same time, the noise generated by the key assembly when the trigger head 311 contacts the contact 61 can also be reduced.

[0103] In some embodiments, Figure 4-Figure 8 As shown, there are two positioning members 11 which are arranged opposite to each other. The positioning members 11 further include hooks 14 . The two hooks 14 are bent toward two sides of the two positioning members 11 .

[0104] The inner wall of the receiving hole 21 is provided with two slots 213 corresponding to the two hooks 14. The slots 213 are recessed from the inner wall of the receiving hole 21 toward the outer side of the seat 2, and the slots 213 extend along the axial direction of the receiving hole 21. When the pressing portion 1 drives the moving body 31 to move, the hooks 14 are located in the corresponding slots 213 and move along the extending direction of the slots 213.

[0105] The restoring portion 3 is in a free state, and a second avoidance gap 45 is formed between the hook 14 and the side wall of the locking slot 213 close to the first connecting port 211 .

[0106] Specifically, Figure 8 As shown, the pressing part 1 also has a first position 41, a second position 42 and a third position 43 in the moving direction. The second position 42 is located between the third position 43 and the first position 41. That is, when the pressing part 1 is pressed down, it passes through the first position 41, the second position 42 and the third position 43 in sequence.

[0107] When the pressing part 1 is in the first position 41, the resetting part 3 is in a free state. In this form, the second avoidance gap 45 can prevent the hook 14 from colliding with the seat 2 during the resetting process of the pressing part 1.

[0108] When the trigger head 311 and the triggered member are in contact, a first avoidance gap 44 is provided between the key cap 12 and the seat 2. The triggered member may be a contact 61 provided on the circuit board 6. The first avoidance gap 44 can prevent the pressing part 1 from colliding with the seat 2 during the pressing process.

[0109] In some embodiments, Figure 5-Figure 8 As shown, the positioning member 11 also includes a buffer slope 15. The two buffer slopes 15 of the two positioning members 11 are separated from each other, and the buffer slopes 15 are located between the hook head 14 and the layout surface 121, and the distance between the two buffer slopes 15 close to the layout surface 121 (such as Figure 8 The middle distance L3 is smaller than the distance near the hook head 14 (as shown in FIG. Figure 8 The middle distance L4 is shown).

[0110] The pressing portion 1 moves along the axial direction of the receiving hole 21 , the two buffer slopes 15 slide on the inner wall of the receiving hole 21 close to the first connecting port 211 , and the two positioning members 11 generate an elastic bending amount to approach each other.

[0111] The top area of ​​the buffer slope 15 in this embodiment is closer to the center of the layout surface 121 than the bottom area. Therefore, when the pressing part 1 moves toward the contact 61, the friction between the buffer slope 15 and the accommodating hole 21 will gradually decrease. As a result, the pressing part 1 can move down quickly. In contrast, when the reset part 3 drives the pressing part 1 to move up, the gradually increasing friction can also prevent the pressing part 1 from resetting too quickly and reduce the noise generated by the key assembly.

[0112] In some embodiments, Figure 4-Figure 7 As shown, the pressing part 1 further includes two guide members 16. The two guide members 16 are arranged at intervals, and in the circumferential direction of the receiving hole 21, the two guide members 16 are staggered with the two positioning members 11. The guide member 16 includes a guide bar 161. The guide bar 161 protrudes to both sides of the two guide members 16.

[0113] The inner wall of the receiving hole 21 defines two guide grooves 214 corresponding to the two guide strips 161 . The guide grooves 214 are recessed toward the outside of the seat 2 and extend along the axial direction of the receiving hole 21 . The guide strips 161 are slidably disposed in the guide grooves 214 .

[0114] In this embodiment, the cooperation between the guide strip 161 and the guide groove 214 can guide the movement of the pressing part 1. At the same time, it can also avoid the misalignment of the pressing part 1 and the seat 2 during the installation process, thereby reducing the difficulty of installation.

[0115] In an optional implementation, the key assembly in the above embodiment can be applied to an input device. The input device can be a membrane keyboard. The key assembly includes a bottom shell 5, a circuit board 6 and a key assembly. The circuit board 6 is arranged on the bottom shell 5 and includes a contact 61. The key assembly includes a pressing portion 1, a seat portion 2 and a reset portion 3. The support body 32 of the reset portion 3 is fixedly connected to the circuit board 6, and the trigger head 311 is used to abut against the contact 61.

[0116] In summary, the input device of this embodiment sets the reset part 3 and the pressing part 1 of the input device on the seat 2, and elastically connects the moving body 31 and the supporting body 32. At the same time, the accommodating hole 21 is used to accommodate the reset part 3 and the pressing part 1, so that in the process of the pressing part 1 driving the moving body 31 to move, the reset elastic force acting on the pressing part 1 is generated by the reset part 3. Therefore, on the one hand, the trigger head 311 is set at the first connecting end 3121, and the reset part 3 and the pressing part 1 are fixed together by the cooperation of the second connecting end 3122 and the connecting member 13. At the same time, when the connecting member 13 is provided with an adhesive surface 136, the operator can connect the second connecting end 3122 to the connecting member 13 by bonding. When the connecting member 13 is provided with a positioning groove 134, the operator can directly fix the second connecting end 3122 to the positioning groove 134. Therefore, by utilizing the first clamping surface 71 and the second clamping surface 72 that are arranged opposite to each other, the assembly process of the key assembly is simplified, and the stability of the connection between the pressing portion 1 and the resetting portion 3 is improved.

[0117] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A button assembly, characterized in that: The button assembly comprises: The seat (2) has a receiving hole (21), wherein the receiving hole (21) passes through the seat (2); a reset portion (3), at least partially disposed in the accommodating hole (21) and comprising a moving body (31) and a supporting body (32), wherein the moving body (31) is elastically connected to the supporting body (32), the moving body (31) comprises a connecting column (312) and a trigger head (311), the connecting column (312) having a first connecting end (3121) and a second connecting end (3122), and the trigger head (311) is protruding from the first connecting end (3121); and The pressing portion (1) comprises a key cap (12) and a connecting member (13), wherein the key cap (12) has a pressing surface (122) and a layout surface (121) which are separated from each other, the connecting member (13) is arranged in the central area of ​​the layout surface (121) and extends into the receiving hole (21), the connecting member (13) is provided with a bonding surface (136) or a positioning groove (134), the positioning groove (134) has a first clamping surface (71) and a second clamping surface (72) which are arranged opposite to each other and at intervals, the second clamping surface (71) and the second clamping surface (72) being arranged opposite to each other and at intervals. The holding surface (72) surrounds the first clamping surface (71), the first clamping surface (71) and the second clamping surface (72) extend along the axial direction of the connecting column (312), the second connecting end (3122) is bonded to the connecting member (13) via the bonding surface (136) or fixedly connected via the positioning groove (134), the connecting member (13) drives the trigger head (311) to approach or move away from the support body (32) along a straight line, and the reset portion (3) generates a reset elastic force.

2. The key assembly according to claim 1, characterized in that: The key assembly also includes an adhesive (137); The end surface of the second connection end (3122) and the bonding surface (136) are both planes and are arranged opposite to each other, and the adhesive (137) is applied between the end surface of the second connection end (3122) and the bonding surface (136).

3. The key assembly according to claim 1, characterized in that: The bottom of the positioning groove (134) also has a positioning surface (132); the connecting member (13) comprises a connecting rod (131) and a wall plate (133); the positioning surface (132) is an annular surface and surrounds the connecting rod (131); the wall plate (133) is arranged on the peripheral side of the positioning surface (132); the first clamping surface (71) is a cylindrical surface and is arranged on the side of the connecting rod (131); and the second clamping surface (72) is arranged on the wall plate (133); The connecting column (312) is an elastic component, and a connecting hole (3132) is provided on the end surface of the second connecting end (3122); The end face of the second connecting end (3122) abuts against the positioning surface (132), and the wall plate (133) abuts against a portion of the outer wall of the connecting column (312) through the second clamping surface (72), and the connecting hole (3132) abuts against the first clamping surface (71) and generates an elastic deformation that expands toward the second clamping surface (72).

4. The key assembly according to claim 3, characterized in that: The wall plate (133) is a cylindrical member, which is protruding from the layout surface (121) and surrounds the positioning surface (132); The end surface of the cylindrical member close to the support body (32) is flush with the end surface of the connecting rod (131).

5. The key assembly according to claim 3, characterized in that: The connecting member (13) further comprises a positioning platform (135), wherein the positioning platform (135) is protruding from the layout surface (121), and the positioning surface (132) is located at the top of the positioning platform (135); The wall plate (133) comprises a plurality of plate bodies (1331), the plurality of plate bodies (1331) are protrudingly arranged on the arrangement surface (121) and are evenly distributed along the circumference of the positioning platform (135), and the plate bodies (1331) extend along the lateral direction of the positioning platform (135); The edge of the plate body (1331) close to the support body (32) is flush with the end surface of the connecting rod (131).

6. The key assembly according to claim 1, characterized in that: The accommodating hole (21) comprises a first connecting port (211) and a second connecting port (212); The pressing portion (1) further comprises a positioning member (11), the positioning member (11) being arranged on the layout surface (121) and comprising a contact surface (111) arranged opposite to the support body (32) and facing the second connection port (212), the positioning member (11) extending into the receiving hole (21) through the first connection port (211); The support body (32) is an elastic component, and the support body (32) has an annular surface (321) and a mounting surface (322), the annular surface (321) and the mounting surface (322) are separated from each other, the annular surface (321) faces the contact surface (111), and the center of the annular surface (321) corresponds to the trigger head (311); The trigger head (311) moves to the second connection port (212), the contact surface (111) abuts against the annular surface (321), and a portion of the annular surface (321) is deformed and recessed toward the mounting surface (322).

7. The key assembly according to claim 6, characterized in that: The number of the positioning members (11) is two and they are arranged opposite to each other. The positioning members (11) further include hooks (14). The two hooks (14) are bent toward two sides of the two positioning members (11). The inner wall of the accommodating hole (21) is provided with two slots (213) corresponding to the two hook heads (14); the slots (213) are recessed from the inner wall of the accommodating hole (21) toward the outer side of the seat portion (2), and the slots (213) extend along the axial direction of the accommodating hole (21); the pressing portion (1) drives the moving body (31) to move, and the hook heads (14) are located in the corresponding slots (213) and move along the extension direction of the slots (213); The reset portion (3) is in a free state, and the hook head (14) and the side wall of the clamping groove (213) close to the first connection port (211) have a second avoidance gap (45).

8. The key assembly according to claim 7, characterized in that: The positioning member (11) further comprises a buffer slope (15), wherein the two buffer slopes (15) of the two positioning members (11) are opposed to each other, the buffer slopes (15) are located between the hook head (14) and the layout surface (121), and the spacing between the two buffer slopes (15) on the side close to the layout surface (121) is greater than the spacing between the two buffer slopes on the side close to the hook head (14); The pressing portion (1) moves along the axial direction of the accommodating hole (21), the two buffer inclined surfaces (15) slide on the inner wall of the accommodating hole (21) close to the first connecting port (211), and the two positioning members (11) generate an elastic bending amount that approaches each other.

9. The key assembly according to claim 7, characterized in that: The pressing portion (1) further comprises: Two guide members (16), the two guide members (16) are arranged at intervals, and in the circumferential direction of the accommodating hole (21), the two guide members (16) and the two positioning members (11) are arranged staggered, and the guide members (16) include guide strips (161); The inner wall of the accommodating hole (21) is provided with two guide grooves (214) corresponding to the two guide strips (161); the guide grooves (214) are recessed toward the outer side of the seat portion (2) and extend along the axial direction of the accommodating hole (21); and the guide strips (161) are slidably disposed in the guide grooves (214).

10. An input device, characterized in that: The input device comprises: A key assembly according to any one of claims 1 to 9.

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