Key structure

Abstract

The utility model discloses a key structure. The key structure comprises a key cap; the support is provided with a hollow wrapping part, the keycap is arranged in the wrapping part, the outer surface of the wrapping part extends outwards to form a plurality of positioning pins, the joints of the positioning pins and the wrapping part are sunken downwards to form a plurality of notches, the lower surface of the support is provided with a limiting part which extends downwards, and the limiting part is provided with a plurality of limiting holes. The limiting part is formed at one end of the coating part; one end of the metal elastic piece is fixed in the plurality of notches, and the other end of the metal elastic piece is arranged in the limiting part and is exposed out of the limiting part; the circuit board is arranged on the lower surface of the metal elastic piece, a conductive pad is arranged on the upper surface of the circuit board, the conductive pad corresponds to the limiting part, and one end of the metal elastic piece is in contact with the conductive pad and is electrically conducted with the conductive pad. Therefore, the key structure provided by the utility model can simplify the assembly process and can be stably assembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a key structure, especially to a key structure capable of simplifying assembly procedure and stable assembly. BACKGROUND

[0002] The function key is a standard component in the game controller, and the function key abuts against the switch on the circuit board. When the function key is pressed, the function key triggers the switch, so that the game controller performs corresponding action. After the key is released, the key returns to the initial position through the elastic force of the elastic member.

[0003] Chinese patent publication No. 215955145 discloses a key structure and a mechanical arm, which comprises a spring and a key cap, a tactile switch is arranged on a circuit board, the circuit board is arranged in the inside of a shell, the spring is sleeved on the tactile switch, the key cap is arranged in the key hole of the shell, the key cap is suitable for moving relative to the key hole to compress the spring and trigger the tactile switch, and the spring is a polygonal spring.

[0004] However, the compression spring is welded on the circuit board as a conductor, and the compression spring and the switch are arranged in line in the inside of the key cap. However, the space in the inside of the key cap is small, which leads to difficult assembly. In addition, the key cap needs to be welded with the compression spring on the other side, which increases the assembly procedure.

[0005] Therefore, it is necessary to provide a key structure capable of simplifying assembly procedure and stable assembly. SUMMARY

[0006] The utility model aims at providing a key structure in view of the defects and deficiencies of the prior art.

[0007] To achieve the above-mentioned purpose, the utility model discloses a key structure, which comprises a key cap, a bracket, a metal elastic member and a circuit board. The upper surface of the bracket extends upward to form a hollow cladding part, the key cap is arranged in the cladding part, the outer surface of the cladding part extends outward to form a plurality of positioning feet, the connecting parts of the plurality of positioning feet and the cladding part are concave downward to form a plurality of notches, the lower surface of the bracket is provided with a limiting part extending downward, and the limiting part is formed at one end of the cladding part. One end of the metal elastic member is fixed in the plurality of notches, the other end of the metal elastic member is arranged in the limiting part and exposed outside the limiting part, the upper surface of the circuit board is provided with a conductive pad, the conductive pad corresponds to the limiting part, and one end of the metal elastic member is in contact with the conductive pad and electrically connected.

[0008] As a further improvement, the metal elastic piece is provided with a contact part, a connecting part and a main body part, the contact part is fixed in the limiting part and exposed outside the limiting part, the conductive pad corresponds to the contact part, the contact part is in contact with the conductive pad and electrically connected, one end of the contact part extends outward and then upward to form the connecting part, one end of the connecting part extends upward to form the main body part, and the main body part is fixed in the notches.

[0009] As a further improvement, the bracket is provided with a through slot penetrating the upper and lower surfaces of the bracket, the through slot is formed on one side of the limiting part, and the through slot is formed at one end of the covering part.

[0010] As a further improvement, the limiting part is provided with an opening near one side of the through slot, and the connecting part is fixed in the opening of the limiting part of the bracket and the lower surface of the bracket after penetrating the through slot.

[0011] As a further improvement, the through slot comprises a distal end part and a proximal end part, the proximal end part is closer to the covering part than the distal end part, the contact part is fixed in the limiting part and exposed outside the limiting part after penetrating the distal end part, and the connecting part is fixed in the opening and the lower surface of the bracket after penetrating the proximal end part.

[0012] As a further improvement, the lower surface of the bracket is provided with a plurality of assembly holes formed by being concave upward, the assembly holes are in communication with the covering part, the left and right sides of the outer side surface of the key cap extend outward to form a plurality of assembly parts, and the assembly parts are arranged in the assembly holes.

[0013] As a further improvement, the utility model discloses a key structure, which comprises: a key cap provided with a pressing part; a bracket, the upper surface of the bracket extends upward to form a hollow covering part, the hollow covering part penetrates the bracket, the key cap is arranged in the covering part, the outer periphery of the covering part is provided with at least one notch, the lower surface of the bracket extends downward to form a limiting part, and one side of the covering part is provided with a through slot penetrating the bracket; a metal elastic piece provided with a connecting part, the connecting part penetrates the through slot, the upper end of the connecting part extends a main body part, the main body part surrounds the covering part and is arranged in the notch, the lower end of the connecting part extends a contact part, the contact part is fixed in the limiting part, and the bottom end of the contact part protrudes out of the limiting part; and a circuit board arranged below the bracket, the circuit board is provided with a conductive pad and a switch, the switch corresponds to the pressing part, and the contact part is pressed against the conductive pad.

[0014] As described above, in the button structure of this utility model, the contact portion of the metal elastic element is fixed inside the limiting portion and exposed outside the limiting portion, and the contact portion contacts and is electrically connected to the conductive pad of the circuit board. The connecting portion of the metal elastic element is fixed to the opening of the limiting portion of the bracket and the lower surface of the bracket. The main body of the metal elastic element is fixed in the recesses of the plurality of positioning feet of the bracket. Therefore, the button structure of this utility model simplifies the assembly process and enables stable assembly. Attached Figure Description

[0015] Fig. 1 This is a perspective view of the button structure of this utility model.

[0016] Fig. 2 This is a perspective view of the button structure of this utility model from another angle.

[0017] Fig. 3 This is an exploded view of the button structure of this utility model.

[0018] Fig. 4 This is an exploded view of the button structure of this utility model from another angle.

[0019] The labels in the attached figures are explained as follows.

[0020] Key structure 100 Keycaps 1

[0021] Assembly part 11 Pressing part 12

[0022] Support 2 Covering part 21

[0023] Positioning foot 22, notch 221

[0024] Assembly hole 23 Limiting part 24

[0025] Opening 241, through slot 25

[0026] Distal end 251 Proximal end 252

[0027] Metal elastic element 3 Contact part 31

[0028] Connecting part 32 Main body part 33

[0029] Switch 4 Circuit Board 5

[0030] Conductive pad 51. Detailed Implementation

[0031] To explain in detail the technical content, structural features, objectives and effects of the button structure 100 of this utility model, the following embodiments are provided in conjunction with the accompanying drawings.

[0032] Please see Figs. 1 to 4 The button structure 100 of this utility model includes a keycap 1, a bracket 2, a metal elastic element 3, a switch 4, and a circuit board 5. The bracket 2 covers the keycap 1. The two ends of the metal elastic element 3 are respectively fixed to the upper and lower surfaces of the bracket 2. The keycap 1, the bracket 2, the metal elastic element 3, and the switch 4 are disposed on the upper surface of the circuit board 5. One end of the metal elastic element 3 surrounds the outer surface of the keycap 1, and the other end of the metal elastic element 3 contacts and is electrically connected to the circuit board 5.

[0033] The keycap 1 has several assembly parts 11 and a pressing part 12. In this embodiment, the left and right sides of the outer surface of the keycap 1 extend outward to form several assembly parts 11, but this is not limited to specific implementations. The several assembly parts 11 of the keycap 1 are disposed in the corresponding mechanism of the bracket 2 to achieve positioning and fixation of the keycap 1 and the bracket 2. The inner surface of the keycap 1 extends downward to form the pressing part 12. The pressing part 12 corresponds to the switch 4 and is used to press the switch 4. In this embodiment, the pressing part 12 is cross-shaped, but in specific implementations, the pressing part 12 can be changed to a circle, square, or other shapes.

[0034] The bracket 2 has a covering portion 21, several positioning feet 22, several assembly holes 23, a limiting portion 24, and a through groove 25. The upper surface of the bracket 2 extends upward to form a hollow covering portion 21. The keycap 1 is disposed within the covering portion 21. The outer surface of the covering portion 21 extends outward to form several positioning feet 22. The connection points between the positioning feet 22 and the covering portion 21 are recessed downward to form several notches 221. One end of the metal elastic member 3 is disposed in one of the notches 221. The notches 221 are used to position the metal elastic member 3.

[0035] The lower surface of the bracket 2 has several upwardly recessed assembly holes 23. These assembly holes 23 communicate with the covering portion 21. In this embodiment, the assembly holes 23 are formed on the left and right sides of the covering portion 21, but this is not a limitation in specific implementations. Several assembly portions 11 of the keycap 1 are disposed within the assembly holes 23 to achieve positioning and fixation between the bracket 2 and the keycap 1. The lower surface of the bracket 2 has a downwardly extending limiting portion 24. The limiting portion 24 is formed at one end of the covering portion 21. The other end of the metal elastic member 3 is disposed within the limiting portion 24 and protrudes from it. The limiting portion 24 has an opening 241 on the side near the through groove 25. The corresponding mechanism of the metal elastic member 3 is fixed at the position of the opening 241.

[0036] The bracket 2 is provided with a through groove 25 penetrating the upper and lower surfaces of the bracket 2. The through groove 25 is formed on one side of the limiting portion 24. The through groove 25 is formed at one end of the covering portion 21. The corresponding mechanism of the metal elastic member 3 passes through the through groove 25 and is fixed inside the limiting portion 24 and exposed outside the limiting portion 24. The through groove 25 includes a distal end 251 and a proximal end 252. In this embodiment, the proximal end 252 is closer to the covering portion 21 than the distal end 251. The distal end 251 is circular, and the proximal end 252 is elongated. The corresponding mechanism of the metal elastic member 3 is fixed inside the limiting portion 24 and exposed outside the limiting portion 24 after passing through the distal end 251. The corresponding mechanism of the metal elastic member 3 is fixed to the opening 241 and the lower surface of the bracket 2 after passing through the proximal end 252.

[0037] The metal elastic element 3 has a contact portion 31, a connecting portion 32, and a main body portion 33. The contact portion 31 is fixed inside the limiting portion 24 and protrudes outside the limiting portion 24. A conductive pad 51 is provided on the upper surface of the circuit board 5. The conductive pad 51 corresponds to the contact portion 31 and the limiting portion 24 of the bracket 2. The contact portion 31 contacts and is electrically connected to the conductive pad 51 of the circuit board 5. One end of the contact portion 31 extends outward and then upward to form the connecting portion 32. The connecting portion 32 is fixed to the opening 241 of the limiting portion 24 of the bracket 2 and the lower surface of the bracket 2. One end of the connecting portion 32 extends upward to form the main body portion 33. In this embodiment, the main body portion 33 is a ring-shaped structure, but it is not limited to this in specific implementations. The main body portion 33 is fixed in several recesses 221 of several positioning feet 22 of the bracket 2. The main body 33 surrounds the outer surface of the keycap 1 and the outer surface of the covering part 21. The contact part 31 is also a ring-shaped structure, and the outer diameter of the contact part 31 is smaller than the outer diameter of the main body 33.

[0038] In this embodiment, the metal elastic member 3 is assembled downwards from the upper surface of the bracket 2. The main body 33 of the metal elastic member 3 surrounds the outer surface of the covering portion 21, and the contact portion 31 of the metal elastic member 3 is aligned above the distal end 251 of the through groove 25 of the bracket 2. The connecting portion 32 of the metal elastic member 3 is aligned above the proximal end 252 of the through groove 25 of the bracket 2. After passing through the distal end 251 of the through groove 25 of the bracket 2, the contact portion 31 of the metal elastic member 3 is fixed within the limiting portion 24 of the bracket 2 and protrudes from the limiting portion 24. After passing through the proximal end 252, the connecting portion 32 of the metal elastic member 3 is fixed to the opening 241 of the limiting portion 24 of the bracket 2 and the lower surface of the bracket 2. The main body 33 of the metal elastic member 3 is fixed within the recesses 221 of the positioning feet 22 of the bracket 2. Therefore, the two ends of the metal elastic element 3 are stably assembled to the upper and lower surfaces of the bracket 2.

[0039] As described above, in the button structure 100 of this utility model, the contact portion 31 of the metal elastic member 3 is fixed inside the limiting portion 24 and exposed outside the limiting portion 24, and the contact portion 31 contacts and is electrically connected to the conductive pad 51 of the circuit board 5. The connecting portion 32 of the metal elastic member 3 is fixed to the opening 241 of the limiting portion 24 of the bracket 2 and the lower surface of the bracket 2. The main body portion 33 of the metal elastic member 3 is fixed inside the recesses 221 of the plurality of positioning feet 22 of the bracket 2. Therefore, the button structure 100 of this utility model simplifies the assembly process and enables stable assembly.

Claims

1. A button structure, characterized in that, include: One-click cap; A bracket, the upper surface of which extends upward to form a hollow covering portion, the keycap being disposed within the covering portion, the outer surface of the covering portion extending outward to form several positioning feet, the connection points of the positioning feet with the covering portion being recessed downward to form several notches, the lower surface of the bracket having a downwardly extending limiting portion formed at one end of the covering portion; a metal elastic member, one end of which is fixed to the several notches, the other end of which is disposed within the limiting portion and protrudes from the limiting portion; and a circuit board disposed on the lower surface of the metal elastic member, the upper surface of which has a conductive pad corresponding to the limiting portion, one end of which is in contact with and electrically connected to the conductive pad.

2. The button structure as described in claim 1, characterized in that: The metal elastic element has a contact portion, a connecting portion and a main body portion. The contact portion is fixed inside the limiting portion and exposed outside the limiting portion. The conductive pad corresponds to the contact portion. The contact portion contacts the conductive pad and is electrically connected. One end of the contact portion extends outward and then upward to form the connecting portion. One end of the connecting portion extends upward to form the main body portion. The main body portion is fixed to several of the notches.

3. The button structure as described in claim 2, characterized in that: The bracket is provided with a through groove that penetrates the upper and lower surfaces of the bracket. The through groove is formed on one side of the limiting part and at one end of the covering part. The contact part passes through the through groove and is fixed inside the limiting part.

4. The button structure as described in claim 3, characterized in that: The limiting part has an opening on the side near the through groove, and the connecting part passes through the through groove and is fixed to the opening of the limiting part and the lower surface of the bracket.

5. The button structure as described in claim 4, characterized in that: The slot includes a distal end and a proximal end, the proximal end being closer to the covering portion than the distal end. The contact portion passes through the distal end and is fixed inside the limiting portion and exposed outside the limiting portion. The connecting portion passes through the proximal end and is fixed to the opening and the lower surface of the bracket.

6. The button structure as described in claim 1, characterized in that: The lower surface of the bracket is provided with several assembly holes that are recessed upwards. The assembly holes are connected to the covering part. The left and right sides of the outer side of the keycap extend outwards to form several assembly parts, which are disposed in the assembly holes.

7. A button structure, characterized in that, include: A keycap with a pressing part; a bracket, the upper surface of which extends upward to form a hollow covering part, the hollow covering part penetrating the bracket, the keycap being disposed within the covering part, the outer periphery of which has at least one notch, the lower surface of which extends downward to form a limiting part, and one side of which has a through groove penetrating the bracket; a metal elastic element with a connecting part passing through the through groove, the upper end of which extends into a main body part, the main body part surrounding the covering part and disposed within the notch, the lower end of which extends into a contact part, the contact part being fixed within the limiting part, the bottom end of which protrudes from the limiting part; and a circuit board disposed below the bracket, the circuit board having a conductive pad and a switch, the switch corresponding to the pressing part, and the contact part pressing against the conductive pad.

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