TWI713064B - Keyswitch structure - Google Patents

Abstract

A keyswitch structure includes a base plate, a keycap, and two supports connected to and between the base plate and the keycap. The keycap is movable relative to the base plate through the two supports. In an embodiment, the support is pivotally connected to the base plate through a pivotal connection structure. The pivotal connection structure includes a guiding slot and a protrusive shaft that are oppositely disposed on the support and the base plate. The guiding slot has an indentation portion and can guide the protrusive shaft to fit in the indentation portion. In another embodiment, the support includes a support body and an abutting arm extending from the support body. The support is connected to the base plate through the support body. The base plate structurally constrains the support through a hook and a limitation post thereof. The abutting arm of one support extends under the other support, so that the two supoprts can move each other through the abutting arms.

Description

Button structure

The present invention relates to a mechanical key structure, in particular to a mechanical key structure whose key cap is supported and actuated by two brackets.

The traditional key structure has a larger size and enjoys a larger installation space, which is conducive to its design flexibility, such as using more components, adopting a more complicated structure, and so on. However, when the size of the key structure is small (or when the installation space is small, such as a thin key structure), the number of structures that can be used and the complexity of the structure are limited. In addition, the brackets of the traditional button structure mostly use holes and shafts. When assembling, the brackets need to be elastically deformed in principle to be able to be assembled to each other or to the keycaps, bottom plate, etc., but this may cause some permanent deformation of these components. Moreover, when the size of the key structure is small, the aforementioned connection structure is inconvenient to assemble the components. If the components are slightly deformed after assembly, the structural stability or smoothness of the operation of the key structure will be obviously affected, and the assembly will fail in severe cases. , Reduce product yield and increase product production cost.

In view of the problems in the prior art, one object of the present invention is to provide a key structure, which uses a guiding structure to facilitate the combination of the bracket and the bottom plate.

The key structure according to the present invention includes a bottom plate, a key cap, a bracket, and a pivot structure. The key cap is arranged on the bottom plate. The bracket is connected to the key cap. The bracket is connected to the bottom plate via the first pivot structure, so that the first bracket can rotate relative to the bottom plate around a rotation axis. The pivot structure includes a guiding groove and a protruding shaft. The guide groove extends perpendicular to the rotation axis and has an opening and a recess, the recess is recessed parallel to the rotation axis, and the guide groove is disposed in the bracket and the bottom plate one. The protruding shaft is rotatably locked into the recess with respect to the rotation axis, and the protruding shaft is disposed on the other of the bracket and the bottom plate relative to the guiding groove. The keycap can move up and down relative to the bottom plate via the bracket. Thereby, the guiding groove helps the protruding shaft to be locked into the concave portion, effectively inhibiting or avoiding structural deformation after assembly.

Another object of the present invention is to provide a key structure in which the two oppositely arranged brackets have an extension structure extending below the other bracket, so that the two brackets can be linked to each other. The bracket is combined with the bottom plate with a structure of hooks and limit posts.

The key structure according to the present invention includes a bottom plate, a key cap, a bracket, a first bracket and a second bracket. The bottom plate includes a first hook, a first limit post, a second hook and a second limit post. The key cap is arranged on the bottom plate. The first bracket includes a first bracket body and a first abutting arm extending from the first bracket body, and the first bracket is connected between the key cap and the bottom plate by the first bracket body. The first frame has a first bottom plate abutment portion and a first limiting hole, and the first bottom plate abutment portion abuts the bottom plate. The first frame is rotatable relative to the bottom plate via the first bottom plate abutting portion. The first hook hooks the abutting portion of the first bottom plate, and the first limiting post extends into the first limiting hole. The second frame includes a second frame body and a second abutting arm extending from the second frame body, and the second frame body is connected between the keycap and the bottom plate by the second frame body. The second frame body has a second bottom plate abutting portion and a second limiting hole, and the second bottom plate abutting portion abuts the bottom plate. The second frame body can rotate relative to the bottom plate via the second bottom plate abutting portion. The second hook hooks the second bottom plate abutting portion, and the second limiting post extends into the second limiting hole. The first abutting arm is located between the second frame and the bottom plate and abuts against the second frame, and the second abutting arm is located between the first frame and the bottom plate and abuts against the first frame body. Thereby, through the simple structural logic that the first frame body and the second abutting arm abut against each other, and the second frame body and the first abutting arm abut against each other, the first frame and the second The brackets are linked to each other. In addition, the first hook and the first limit post form a simple structure that restrains the first frame, and the second hook and the second limit post form a simple structure that restrains the second frame. Logic, the first bracket and the second bracket and the bottom Board connection.

The advantages and spirit of the present invention can be obtained from the following detailed description of the invention and the accompanying drawings Better understanding of.

1: Button structure

10: bottom plate

102, 104: Board

12: keycap

122: cap body

122a: bottom surface

124: First Chute

124a: Sliding surface

126: The first limit block

128: second chute

128a: Sliding surface

130: second limit block

14, 15a, 15b, 15c, 74: first bracket

14a, 14b: side

142, 144: Cantilever plate

146: first engagement part

146a: The first limit

148: The first snap

150: first keycap abutment

150a: protrusion

152: first sliding part

152a: Bending part

152b: pillar

153: Cantilever structure

153a: lower surface

153b: upper surface

154: The first horizontal limit slot

742: First Arrival

744: first contact surface

16, 76: second bracket

16a, 16b: side

162: second engagement part

162a: The second limit

164: The second snap

166: Second keycap abutment

168: second sliding part

170: second horizontal limit slot

762: Second Arrival

764: second contact surface

18: The first pivot structure

182: The first guide groove

1822: first opening

1824: first recess

184: first synapse

186: Third Guide Slot

1862: third opening

1864: third recess

188: third synapse

20: The second pivot structure

202: Second guide groove

2022: second opening

2024: second recess

204: second synapse

206: The fourth guide groove

2062: fourth opening

2064: fourth recess

208: fourth synapse

22: Switch circuit board

222: switch

24: Elastic reset piece

A1: The first axis of rotation

A2: The second axis of rotation

D1: vertical direction

3, 5: Button structure

30, 50: bottom plate

300: plate body

302, 502: first card hook

302a, 502a: opening direction

304, 504: second hook

306, 506: third card hook

308, 508: fourth card hook

310, 510: the first limit column

312, 512: second limit post

514: Third Limit Column

516: Fourth Limit Column

32: keycap

320: cap body

320a: bottom surface

322: The first vertical limit slot

322a: limit surface

324: The second vertical limit slot

324a: limit surface

326: The first limit block

328: The second limit block

34, 54: the first bracket

340: first frame

3402: The first keycap abutment

3404: The first limit

3406: First bottom plate abutment

3406a: first through hole

3408: Third bottom plate abutment

3408a: third through hole

3410, 5410: the first limit hole

3412: The first horizontal limit slot

5411: third limit hole

342: first abutment arm

344: third abutment arm

36, 56: second bracket

360: second frame

3602: second keycap abutment

3604: The second limit

3606: Second bottom plate abutment

3606a: second through hole

3608: Fourth bottom plate abutment

3608a: fourth through hole

3610, 5610: second limit hole

3612: second horizontal limit slot

5611: Fourth limit hole

362: second abutment arm

364: fourth abutment arm

38: switch circuit board

382: switch

40: Elastic reset piece

Fig. 1 is a schematic diagram of a key structure according to an embodiment.

Figure 2 is a partial exploded view of the button structure in Figure 1.

Figure 3 is an exploded view of the button structure in Figure 1.

Fig. 4 is an exploded view of the first pivot structure in Fig. 2.

Fig. 5 is a cross-sectional view of the first bracket, the bottom plate and the first pivoting structure in Fig. 2, the cross-sectional position of which passes through the first rotation axis.

6 is a cross-sectional view of the first bracket in FIG. 5 according to another embodiment.

FIG. 7 is a cross-sectional view of the first pivoting structure in FIG. 5 according to another embodiment.

Fig. 8 is an exploded view of the first pivot structure in Fig. 4 according to another embodiment.

Fig. 9 is an exploded view of the second pivoting structure in Fig. 2.

Fig. 10 is a cross-sectional view of the key structure in Fig. 1 along the line X-X.

11 is a cross-sectional view of the key structure in FIG. 10 when the keycap is pressed, in which the elastic reset member is not shown in the figure.

Fig. 12 is a schematic diagram of a first bracket according to another embodiment.

Fig. 13 is a schematic diagram of a first bracket according to another embodiment.

Fig. 14 is a schematic diagram of a first bracket according to another embodiment.

Fig. 15 is a cross-sectional view of the key structure in Fig. 1 along the line Y-Y.

FIG. 16 is a schematic diagram of a partial structure of a key structure according to an embodiment.

Fig. 17 is a schematic diagram of the first bracket in Fig. 16.

Fig. 18 is a schematic diagram of the second bracket in Fig. 16.

Fig. 19 is a side view of the first bracket and the second bracket in Fig. 16.

Fig. 20 is a cross-sectional view along the line U-U of Fig. 16;

FIG. 21 is a cross-sectional view of the button structure in FIG. 16 after being pressed.

FIG. 22 is a schematic diagram of a key structure according to another embodiment.

Figure 23 is a partial exploded view of the button structure in Figure 22.

Figure 24 is an exploded view of the button structure in Figure 22.

Fig. 25 is a cross-sectional view of the key structure in Fig. 22 along the line Z-Z.

Fig. 26 is a cross-sectional view of the key structure in Fig. 22 along line W-W.

Fig. 27 is a cross-sectional view of the key structure in Fig. 22 along the line V-V.

Figure 28 is an exploded view of a key structure according to another embodiment.

Please refer to Figure 1 to Figure 3. According to an embodiment, a key structure 1 includes a bottom plate 10, a key cap 12, a first bracket 14, a second bracket 16, a first pivot structure 18 (shown in dashed circles in FIG. 2), a The second pivot structure 20 (shown in FIG. 2 with a dashed circle), a switch circuit board 22 and an elastic reset member 24. The keycap 12 is disposed on the bottom plate 10, and the first bracket 14 and the second bracket 16 are connected between the keycap 12 and the bottom plate 10. Wherein, the first bracket 14 is connected to the bottom plate 10 via the first pivot structure 18, so that the first bracket 14 can rotate relative to the bottom plate 10 around a first rotation axis A1 (shown in FIG. 2 as a chain line); The first bracket 14 has two opposite sides 14a and 14b relative to the first rotation axis A1. One side 14a of the first bracket 14 is connected to the keycap 12 and the other side 14b is connected to the second bracket 16. The second bracket 16 is connected to the bottom plate 10 via the second pivot structure 20, so that the second bracket 16 can rotate relative to the bottom plate 10 about a second rotation axis A2 (shown in FIG. 2 as a chain line); The bracket 16 has two opposite sides 16a, 16b relative to the second rotation axis A2. The second bracket 16 is connected to the keycap 12 by one side 16a and is connected to the first bracket 14 by the other side 16b. The first rotation axis The direction A1 is parallel to the second rotation axis A2. The switch circuit board 22 is set on the bottom plate 10 and wrapped Contains a switch 222 (shown as a hatched circle in FIG. 3). The elastic reset member 24 is placed on the switch circuit board 22 corresponding to the switch 222. Thereby, the keycap 12 can move parallel to the bottom plate 10 in a vertical direction D1 (or vertical movement up and down) via the first bracket 14 and the second bracket 16, and the keycap 12 that moves downward can squeeze the elastic reset member 24 to trigger switch 222. In practice, the switch circuit board 22 can be, but is not limited to, a conventional thin film circuit board, and its structural details will not be repeated. To simplify the diagram, the switch circuit board 22 is still shown as a single entity. The elastic restoring member 24 can be, but is not limited to, a silicone or rubber dome.

Please also refer to Figures 4 and 5. The first pivot structure 18 includes a first guiding groove 182, a first protruding shaft 184, a third guiding groove 186 and a third protruding shaft 188. The first guiding groove 182 extends perpendicular to the first rotation axis A1 and has a first opening 1822 and a first recess 1824. The first recess 1824 is recessed parallel to the first rotation axis A1; the first protruding shaft 184 is opposite to The first rotation axis A1 is rotatably locked into the first recess 1824. The third guide groove 186 extends perpendicular to the first rotation axis A1 and has a third opening 1862 and a third recess 1864. The third recess 1864 is recessed parallel to the first rotation axis A1; the third protruding axis 188 is opposite to The first rotation axis A1 is rotatably locked into the third recess 1864. In this embodiment, the first guide groove 182 and the third guide groove 186 are disposed on the bottom plate 10, and the first protruding shaft 184 and the third protruding shaft 188 are opposite to the first guide groove 182 and the third guide groove 186. Set in the first bracket 14. Thereby, the first bracket 14 is pivotally connected to the bottom plate 10 via the first pivoting structure 18, so it can rotate relative to the bottom plate 10 about the first rotation axis A1.

In addition, in this embodiment, both the first guide groove 182 and the third guide groove 186 extend parallel to the vertical direction D1, and the first opening 1822 and the third opening 1862 are located in the first guide groove 182 and the third guide groove 182 and the third guide groove. The end of the leading groove 186 upward. When assembling the first bracket 14 to the bottom plate 10, the first protruding shaft 184 and the third protruding shaft 188 can enter the first guide groove 182 and the third guide through the first opening 1822 and the third opening 1862, respectively Slot 186. Next, the first bracket 14 is pressed down, so that the first protruding shaft 184 and the third protruding shaft 188 continue to slide down in the first guide groove 182 and the third guide groove 186 until the first protruding shaft 184 and the third guide groove 186 The tri-protruding shaft 188 is inserted into the first recess 1824 and the third recess 1864. At this time, the pivotal connection between the first bracket 14 and the bottom plate 10 is completed.

In addition, in this embodiment, the first guide groove 182 and the third guide groove 186 are The board 10 extends upward to form a board portion 102, 104. In other words, the first guide groove 182 and the third guide groove 186 are integrally formed with the bottom plate 10 (for example, but not limited to stamping and forming a metal plate). The first recess 1824 and the third recess 1864 are implemented by a through hole (in practice, it is also implemented by a recess), which are located at but not limited to the ends of the first guide groove 182 and the third guide groove 186 (or Closed end). The plate portions 102 and 104 are cantilever plates, which are elastic in principle, which facilitates the elastic clamping of the first protruding shaft 184 and the third protruding shaft 188 (guided by the first guiding groove 182 and the third guiding groove 186) Into the first concave portion 1824 and the third concave portion 1864, the first guiding groove 182 and the third guiding groove 186 can still elastically contact the first protruding shaft 184 and the third protruding shaft 188. In addition, the first protruding shaft 184 and the third protruding shaft 188 are formed to protrude laterally from one of the cantilever plates 142 and 144 on the side of the first bracket 14 respectively. The cantilever plates 142 and 144 are cantilever plates, which are also elastic in principle, which also facilitates the aforementioned elastic clamping and elastic contact.

In addition, in this embodiment, the first protruding shaft 184 and the third protruding shaft 188 are located between the first guide groove 182 and the third guide groove 186 in the first rotation axis A1, and the first protruding shaft 184 and The third protruding shaft 188 is formed to protrude laterally outward from the cantilever plates 142 and 144 located on opposite sides of the first bracket 14 respectively. The first bracket 14 together with the first protruding shaft 184 and the third protruding shaft 188 pass through the first rotating shaft. The cross section toward A1 (as shown in FIG. 5) has a U-shaped structure, which facilitates the aforementioned elastic clamping and elastic contact. For example, the bottom width of the U-shaped structure can be designed to be slightly smaller than the distance between the plate portions 102 and 104 (or the distance between the first guide groove 182 and the third guide groove 186), which facilitates the aforementioned snapping operation. In addition, in practice, before the first protruding shaft 184 and the third protruding shaft 188 are locked into the first recess 1824 and the third recess 1864, the cantilever plates 142, 144 can be designed to face the first guide groove 182 and the The three guiding grooves 186 extend obliquely (that is, extend obliquely toward the outside, as shown in FIG. 6), that is, have a U-shaped structure with an enlarged opening (similar to a trapezoidal structure with an upper bottom larger than a lower bottom). This structural design can increase the aforementioned The force of elastic contact. On the other hand, this structural design can provide a larger tolerance range and facilitate the assembly of the first bracket 14 to the bottom plate 10. In addition, in practice, the first pivoting structure 18 must also be configured in a U-shaped structure with an enlarged opening, as shown in FIG. 7. In addition, after the first protruding shaft 184 and the third protruding shaft 188 are engaged in the first concave portion 1824 and the third concave portion 1864, in principle, the first concave portion 1824 and the third concave portion 1864 can have a structural restraint effect on the first protruding shaft 184 and the third protruding shaft 188, so in practice, the first protruding shaft 184 and the third protruding shaft 188 do not elastically contact the first concave portion 1824 and the third concave portion 1864 is the limit.

In addition, in this embodiment, the first guide groove 182 and the third guide groove 186 are provided on the bottom plate 10, and the first protruding shaft 184 and the third protruding shaft 188 are provided on the first bracket 10, but they are not in practice. Limit this. For example, as shown in FIG. 8, the first guide groove 182 and the third guide groove 186 are changed to the first bracket 10, and the first protruding shaft 184 and the third protruding shaft 188 are correspondingly changed to the bottom plate 10. The first guide groove 182 and the third guide groove 186 are located between the first protruding shaft 184 and the third protruding shaft 188 in the first rotation axis A1. In addition, in practice, the first protruding shaft 184 and the third protruding shaft 188 can be implemented by plastic parts, and they can be combined with the bottom plate 10 by embedding. This structural configuration can also realize the engagement of the first protruding shaft 184 and the third protruding shaft 188 with the first guiding groove 182 and the third guiding groove 186 as described above, and will not be repeated.

Please refer to Figure 1 to Figure 3 and Figure 9. The second pivoting structure 20 includes a second guiding groove 202, a second protruding shaft 204, a fourth guiding groove 206 and a fourth protruding shaft 208. The second guiding groove 202 extends perpendicular to the second rotation axis A2 and has a second opening 2022 and a second recess 2024. The second recess 2024 is recessed parallel to the second rotation axis A2; the second protruding shaft 204 is opposite to The second rotation axis A2 is rotatably locked into the second recess 2024. The fourth guide groove 206 extends perpendicular to the second rotation axis A2 and has a fourth opening 2062 and a fourth recess 2064. The fourth recess 2064 is recessed parallel to the second rotation axis A2; the fourth protruding axis 208 is opposite to The second rotation axis A2 is rotatably locked into the fourth recess 2064. In this embodiment, the second guiding groove 202 and the fourth guiding groove 206 are disposed on the bottom plate 10, and the second protruding shaft 204 and the fourth protruding shaft 208 are correspondingly disposed on the second bracket 16. Thereby, the second bracket 16 is pivotally connected to the bottom plate 10 via the second pivoting structure 20, so that it can rotate relative to the bottom plate 10 around the second rotation axis A2.

In this embodiment, the second guide groove 202 and the fourth guide groove 206 have the same structure as the first guide groove 182 and the third guide groove 186, so the second guide groove 202 and the fourth guide groove For other descriptions of 206, you can directly refer to the relevant descriptions of the first guide groove 182, the third guide groove 186 and their modifications, and will not be repeated. In addition, in this embodiment, the first guide groove 182 and the second guide groove 202 have the same structure and are made of free The bottom plate 10 is formed by the same plate portion 102 extending upward, and the third guiding groove 186 and the fourth guiding groove 206 are also formed with the same structure and formed by another identical plate portion 104 extending upward from the bottom plate 10; but in practice Not limited to this. For example, the first guide groove 182 is provided on the first bracket 10 (as shown in FIG. 8), and the second guide groove 202 is provided on the bottom plate 10; wherein, the first protruding shaft 184 (disposed on the bottom plate 10) and the second The guiding groove 202 is still formed by the same plate portion 102 extending upward from the bottom plate 10.

Please refer to Figure 2 to Figure 4 and Figure 9 to Figure 11. The first bracket 14 includes a first engaging portion 146 and a first engaging piece 148, which are spaced apart on the first rotation axis A1. The second bracket 16 includes a second engaging portion 162 and a second engaging piece 164 which are spaced apart on the second rotation axis A2. The first engaging portion 146 is disposed opposite to the second engaging piece 164. The first engaging piece 148 is opposite to the second engaging portion 162. The first engaging piece 148 is locked into the second engaging portion 162 and the second engaging piece 164 is locked into the first engaging portion 146, so that the first bracket 14 and the second bracket 16 are driven to rotate with each other. In this embodiment, both the first engaging portion 146 and the second engaging portion 162 have a slot and extend perpendicular to the first engaging piece 148 and the second engaging piece 164 (or perpendicular to the first rotating piece). In the plate-like structure of the axial direction A1 and the second rotation axial direction A2), the first engagement piece 148 and the second engagement piece 164 are inserted into the slot to realize the mutual driving rotation of the first bracket 14 and the second bracket 16. But it is not limited to this in practice. For example, the first engaging portion 146 may be implemented by a plurality of plate structures that are bent upward or downward with respect to the first axis of rotation A1, and these bent plate structures are staggered along the first axis of rotation A1 to be aligned with the second card. The engaging piece 164 is engaged (that is, from the perspective of the first rotation axis A1, the second engaging piece 164 is engaged between the upwardly and downwardly curved plate structures). This also applies to the second engaging portion 162, which will not be described in detail.

In addition, in this embodiment, the first engaging portion 146 has a first limiting portion 146a (for example, the upper edge of the first engaging portion 146), and the second engaging portion 162 has a second limiting portion 162a ( For example, the upper edge of the second engaging portion 162). When the keycap 12 is at the pressed position (as shown in FIG. 11 ), the first limiting portion 146 a and the second limiting portion 162 a abut the cap body 122. In practice, the structure of the first limiting portion 146a and the second limiting portion 162a can be designed to increase the stability of the first limiting portion 146a and the second limiting portion 162a to stop the keycap 12, such as making the first limiting The upper edges of the position portion 146a and the second limit portion 162a are both horizontal when the keycap 12 is at the pressed position, and can be The contact area between the first limiting portion 146a and the second limiting portion 162a and the cap 122 is increased.

Please refer to Figure 2, Figure 4, Figure 10 and Figure 11. The key cap 12 includes a cap body 122 and two first sliding grooves 124 disposed on the cap body 122. The cap body 122 has a bottom surface 122a facing the bottom plate 10, and the first sliding groove 124 has a sliding groove relative to one of the bottom surfaces 122a.面124a. The first bracket 14 includes a first keycap abutment portion 150 and two first sliding portions 152, and the first sliding portion 152 is located on both sides of the first keycap abutment portion 150. The first keycap abutting portion 150 abuts against the bottom surface 122a, and the first sliding portion 152 correspondingly slides against the sliding surface 124a of the first sliding groove 124; thereby, the first bracket 14 can slide and rotate relative to the keycap 12 . From the perspective of the first rotation axis A1, the first rotation axis A1 (or the first protruding shaft 184) is located between the first keycap abutting portion 150 (or the first sliding portion 152) and the first engaging portion 146 (or Between the first engaging piece 148). In addition, in this embodiment, the first keycap abutting portion 150 has a semi-cylindrical surface and the semi-cylindrical surface slides against the bottom surface 122a. The first sliding portion 152 is a cantilever structure extending perpendicular to the first rotation axis A1. A free end of the cantilever structure has a semicircular protrusion surface and the semicircular protrusion surface slides against the corresponding sliding surface 124a. As shown in FIGS. 10 and 11, from the perspective of the first rotation axis A1, the semi-cylindrical surface of the first keycap abutting portion 150 and the semicircular raised surface of the first sliding portion 152 can be substantially formed as a whole A circular shape (shown in FIG. 10 as a chain coil), so the first keycap abutting portion 150 and the first sliding portion 152 can provide the first bracket 14 to rotate stably relative to the keycap 12. In addition, the first sliding portion 152 in the cantilever structure also has elasticity, which helps to keep the first keycap abutting portion 150 and the first sliding portion 152 against the bottom surface 122a and Sliding surface 124a.

In addition, in practice, the first keycap abutting portion 150 and the first sliding portion 152 can also be implemented by other structures. For example, as shown in FIG. 12, the first bracket 15a has two upward protrusions 150a as the structure of the first keycap abutting portion 150, and two downward bending portions 152a as the first sliding portion. 152 structure; thereby, the first bracket 15a through the protrusion 150a and the bending portion 152a to connect with the key cap 12. Wherein, the protrusion 150a can also be formed by bending a part of the first bracket 15a upward in practice. In addition, in practice, the first keycap abutting portion 150 and the two first sliding portions 152 can also be structurally integrated. For example, the first bracket 15b shown in FIG. 13 includes two cantilever structures 153 and is located on opposite sides of the first bracket 15b. The two cantilever structure 153 is slidably and rotatably arranged in the first sliding groove 124 (refer to FIG. 2). The free end of the cantilever structure 153 is in the shape of a circular plate, the lower surface 153 a is used as the structure of the first sliding portion 152, and the upper surface 153 b is used as the structure of the first key cap abutting portion 150. For another example, the first bracket 15c shown in FIG. 14 includes two pillars 152b extending outward from the first key cap abutment portion 150 (for example, formed by curling a part of the first bracket 15c), which is slidable and It is rotatably arranged in the first sliding groove 124 (refer to FIG. 2) to serve as the structure of the first sliding portion 152. In addition, in this embodiment, the first bracket 14 has an opening downwards and an involute "U"-shaped structure at the two first sliding portions 152 (see FIG. 5), which is also beneficial to the first bracket 14 and the keycap The combination of 12 will not be repeated.

Please refer to Figure 2, Figure 4, Figure 10, Figure 11 and Figure 15. In this embodiment, the keycap 12 includes two first limiting blocks 126 disposed on the cap body 122, and the first bracket 14 has two first horizontal limiting grooves 154 corresponding to the two first limiting blocks 126. The first limit block 126 is relatively slidably inserted into the corresponding first horizontal limit slot 154, so that when the first bracket 14 slides horizontally with respect to the keycap 12, the first limit block 126 slides relative to the first horizontal limit slot. 154 in. In practice, the length of the first horizontal limit slot 154 can be designed so that (the closed end of the first horizontal limit slot 154) can stop the first limit block 126 to control the pressed position of the keycap 12 .

Please refer to Figure 2, Figure 9 to Figure 11, Figure 15. In this embodiment, the keycap 12 includes two second sliding grooves 128 and two second limiting blocks 130 disposed on the cap body 122, and the second sliding groove 128 has a sliding surface 128a relative to the bottom surface 122a. The second bracket 16 includes a second keycap abutting portion 166, two second sliding portions 168 and two second horizontal limiting grooves 170. The second sliding portion 168 is located on both sides of the second keycap abutting portion 166. The second keycap abutting portion 166 abuts against the bottom surface 122a, and the second sliding portion 168 correspondingly slides against the sliding surface 128a of the second sliding groove 128; thereby, the second bracket 16 can slide and rotate relative to the keycap 12 , The second limit block 130 is relatively slidably inserted into the corresponding second horizontal limit slot 170, so that when the second bracket 16 slides horizontally with respect to the keycap 12, the second limit block 130 slides relative to the second horizontal limit In the slot 170. For other descriptions of the connection structure of the second bracket 16 and the keycap 12 and its variations, please refer directly to the first bracket in the previous article 14 Relevant descriptions of the same denomination structure and its changes will not be repeated.

In addition, in this embodiment, the first bracket 14 has a U-shaped structure, the first engaging portion 146 and the first engaging piece 148 are located at both ends of the U-shaped structure, and the second bracket 16 also has a U-shaped structure. The two engaging portions 162 and the second engaging piece 164 are located at the two ends of the "U"-shaped structure. The first bracket 14 and the second bracket 16 are connected to form a square-shaped structure, and the elastic reset member 24 passes through the square-shaped structure. The first bracket 14 and the second bracket 16 have the same structure, which is beneficial to reduce the manufacturing cost, but is not limited to this in practice. For example, both ends of the first bracket 14 are the first engaging portions 146, and correspondingly, both ends of the second bracket 16 are the second engaging pieces 164. In addition, in practice, the connection between the first bracket 14 and the second bracket 16 can only be connected by the first engagement portion 146 and the second engagement piece 164, or the second engagement piece 148 and the second engagement The implementation of the joint 162.

In addition, in this embodiment, the first bracket 14 and the second bracket 16 are connected through the engaging pieces 148, 164 and the engaging portions 146, 162, but the implementation is not limited to this. Please refer to FIGS. 16 to 21, which show a partial structure of a key structure according to another embodiment. This button structure is similar to the structure of the button structure 1. In order to simplify the description, the component symbols of the button structure 1 and its variants are used in principle, so for other descriptions of the button structure of this embodiment, please refer directly to the button structure 1 and its variants The relevant descriptions will not be repeated. In this embodiment, the first bracket 74 and the second bracket 76 are connected between the keycap 12 (shown in dashed outline in FIGS. 19-21) and the bottom plate 10, so that the keycap 12 can pass through the first bracket 74 And the second bracket 76 moves up and down vertically relative to the bottom plate 10. The first bracket 74 and the second bracket 76 are connected to each other so as to be capable of driving and rotating each other. The first bracket 74 includes a first abutting portion 742 and a first abutting surface 744, and the second bracket 76 includes a second abutting portion 762 and a second abutting surface 764. The first abutting portion 742 continues to slide against the second abutting surface 764 and the second abutting portion 762 continues to slide against the first abutting surface 744, so that the first bracket 74 and the second bracket 76 can drive each other to rotate; That is, when the first bracket 74 and the second bracket 76 rotate relative to the bottom plate 10, the first pushing portion 742 can keep abutting against the second abutting surface 764 and the second pushing portion 762 can keep abutting against the first abutting surface. Therefore, when the keycap 12 moves up and down relative to the bottom plate 10, the first bracket 74 and the second bracket 76 can keep abutting against each other and can drive each other to rotate stably.

In addition, in this embodiment, the first abutting portion 742 is located below the second abutting surface 764, the second abutting portion 762 is located below the first abutting surface 744, the first abutting surface 744 and the second abutting surface 764 is a plane, and the plane faces the bottom plate 10, and the first pushing portion 742 and the second pushing portion 762 are curved surfaces. But it is not limited to this in practice. For example, the first abutting portion 742 and the second abutting portion 762 may be a sharp edge (such as a plate edge); for example, the first abutting surface 744 and the second abutting surface 764 may be an arc surface. Moreover, in this embodiment, the first pressing portion 742 linearly contacts the second pressing surface 764, and the second pressing portion 762 linearly contacts the first pressing surface 744. In addition, in this embodiment, the first abutting surface 744 and the second abutting surface 764 have the same structure, and the first abutting portion 742 and the second abutting portion 762 have the same structure, but the implementation is not limited to this. . In addition, in the present embodiment, both the first bracket 74 and the second bracket 76 are substantially in a U-shaped structure, and are connected to each other on both sides (that is, the two ends of the U-shaped structure are connected to each other). The preceding text only explains the cohesive structure on one side, and the cohesive structure on the other side is also the same, so I won’t repeat it; however, in practice, the cohesive structure on both sides is not limited to the same. In addition, in practice, the first bracket 74 and the second bracket 76 also have to be connected on one side only, which can also achieve the effect of mutually driving rotation. In addition, in this embodiment, the first bracket 74 and the second bracket 76 are both a metal stamping part, but the implementation is not limited to this; for example, the first bracket 74 and the second bracket 76 can be changed to plastic Manufactured by injection molding.

Please refer to Figure 22 to Figure 25. According to another embodiment, a key structure 3 includes a bottom plate 30, a key cap 32, a first bracket 34, a second bracket 36, a switch circuit board 38 and an elastic reset member 40. The key cap 32 is disposed on the bottom plate 30. The first bracket 34 and the second bracket 36 are alternately arranged between the key cap 32 and the bottom plate 30. The switch circuit board 38 is disposed under the bottom plate 30 and includes a switch 382 (shown in FIG. 24 as a hatched circle). The elastic reset member 40 is placed on the switch circuit board 38 corresponding to the switch 382. Thereby, the keycap 32 can move up and down relative to the bottom plate 30 via the first bracket 34 and the second bracket 36, and the keycap 32 that moves downward can press the elastic reset member 40 to trigger the switch 382. In practice, the switch circuit board 38 can be, but is not limited to, a conventional thin film circuit board, and its structural details will not be described in detail; to simplify the diagram, the switch circuit board 38 is still shown as a single entity. The elastic restoring member 40 can be, but is not limited to, a silicone or rubber dome.

In this embodiment, the bottom plate 30 includes a board body 300 and a first hook 302, a second hook 304, a third hook 306, a fourth hook 308, and a first hook 302 disposed on the board 300. The first limit post 310 and the second limit post 312 are. In practice, the first hook 302, the second hook 304, the third hook 306, the fourth hook 308, the first limit post 310, and the second limit post 312 can be structurally integrated into a plastic part, and Combined with the board 300; for example, but not limited to, the board 300 is a metal stamping part, and the plastic part is combined with the board 300 by injection molding. The key cap 32 is disposed on the bottom plate 30 and includes a cap body 320 and two first vertical limit grooves 322, two second vertical limit grooves 324, two first limit blocks 326, and two The second limit block 328. The cap body 320 has a bottom surface 320a facing the bottom plate 10, and the first vertical limiting groove 322 and the second vertical limiting groove 324 each have a limiting surface 322a, 324a opposite to the bottom surface 320a.

The first bracket 34 includes a first bracket 340, a first abutting arm 342 and a third abutting arm 344 extending from the first bracket 340, and the first bracket 34 is connected to the key cap by the first bracket 340 Between 32 and bottom plate 30. Among them, the first frame body 340 has a first keycap abutting portion 3402, two first limiting portions 3404, a first bottom plate abutting portion 3406, a third bottom plate abutting portion 3408, and a first limiting hole 3410 and two first horizontal limit slots 3412. The first keycap abutting portion 3402 abuts against the bottom surface 320 a, and the two first limiting portions 3404 are correspondingly disposed in the two first vertical limiting grooves 322. When the keycap 32 is not pressed (as shown in FIG. 25), the first limiting portion 3404 abuts against the limiting surface 322a. The first bottom plate abutment portion 3406 and the third bottom plate abutment portion 3408 abut the bottom plate 30 so that the first frame body 340 can rotate relative to the bottom plate 30 via the first bottom plate abutment portion 3406 and the third bottom plate abutment portion 3408. The first hook 302 and the third hook 306 respectively hook the first bottom plate abutting portion 3406 and the third bottom plate abutment portion 3408. The first limiting post 310 extends into the first limiting hole 3410 to improve the stability of the rotation of the first frame 340 relative to the bottom plate 30 through the structural restriction between the two. The two first limiting blocks 326 are relatively slidably inserted into the two first horizontal limiting slots 3412, so that when the first bracket 34 slides horizontally with respect to the keycap 32, the first limiting blocks 326 slide relatively to the first level. In the limit slot 3412. In practice, the length of the first horizontal limit slot 3412 can be designed so that (the closed end of the first horizontal limit slot 3412) can stop the first limit block 326 to control the pressed position of the keycap 32 . In addition, the first frame body 340 has a first ㄇ shape Structure, the first bottom plate abutment portion 3406 and the third bottom plate abutment portion 3408 are located at both ends of the first U-shaped structure, the first keycap abutment portion 3402 and the first bottom plate abutment portion 3406 (and the third bottom plate The abutting portions 3408) are located on opposite sides of the first frame body 340. The first abutting arm 342 extends from the first bottom abutting portion 3406, and the third abutting arm 344 extends from the third bottom abutting portion 3408.

The second bracket 36 includes a second bracket 360 and a second abutting arm 362 and a fourth abutting arm 364 extending from the second bracket 360. The second bracket 36 is connected to the key cap by the second bracket 360 Between 32 and bottom plate 30. Among them, the second frame 360 has a second keycap abutment portion 3602, two second limiting portions 3604, a second bottom plate abutting portion 3606, a fourth bottom plate abutting portion 3608, and a second limiting hole 3610 and two second horizontal limit slots 3612. The second key cap abutment portion 3602 abuts against the bottom surface 320 a, and the two second limiting portions 3604 are correspondingly disposed in the two second vertical limiting grooves 324. When the keycap 32 is not pressed (as shown in FIG. 25), the second limiting portion 3604 abuts against the limiting surface 324a. The second bottom plate abutment portion 3606 and the fourth bottom plate abutment portion 3608 abut the bottom plate 30, so that the second frame 360 can rotate relative to the bottom plate 30 via the second bottom plate abutment portion 3606 and the fourth bottom plate abutment portion 3608. The second hook 304 and the fourth hook 308 respectively hook the second bottom plate abutment portion 3606 and the fourth bottom plate abutment portion 3608. The second limiting post 312 extends into the second limiting hole 3610 to improve the stability of the rotation of the second frame 360 relative to the bottom plate 30 through the structural restriction between the two. The two second limit blocks 328 are relatively slidably inserted into the two second horizontal limit slots 3612, so that when the second bracket 36 slides horizontally with respect to the keycap 32, the second limit blocks 328 slide relatively to the second level In the limit slot 3612. In practice, the length of the second horizontal limit slot 3612 can be designed so that the second horizontal limit slot 3612 (the closed end) can stop the second limit block 328 to control the pressed position of the keycap 32 . In addition, the second frame body 360 has a second U-shaped structure, the second bottom plate abutting portion 3606 and the fourth bottom plate abutting portion 3608 are located at both ends of the second U-shaped structure, and the second keycap abutting portion 3602 The second bottom plate abutting portion 3606 (and the fourth bottom plate abutting portion 3608) are located on opposite sides of the second frame 360. The second abutting arm 362 extends from the second bottom plate abutting portion 3606, and the fourth abutting arm 364 extends from the fourth bottom plate abutting portion 3608.

In addition, please also refer to Figure 26 and Figure 27. The first abutting arm 342 and the third abutting arm 344 are located Between the second frame 360 and the bottom plate 30 and abuts against the second frame 360, where the first abutting arm 342 and the third abutting arm 344 abut against the second frame 360 are located at the second keycap abutting portion 3602 and the second bottom plate abutting portion 3606 (and the fourth bottom plate abutting portion 3608). Thereby, when the second frame body 360 is rotated to the bottom plate 30, the second frame body 360 will press down the first abutting arm 342 and the third abutting arm 344, so that the first frame body 340 is rotated to the bottom plate 30; When the first frame body 340 is rotated away from the bottom plate 30, the first abutting arm 342 and the third abutting arm 344 will lift up the second frame body 360, so that the second frame body 360 is rotated away from the bottom plate 30. In addition, the second abutting arm 362 and the fourth abutting arm 364 are located between the first frame 340 and the bottom plate 30 and abut against the first frame 340, wherein the second abutting arm 362 and the fourth abutting arm 364 abut The position of the first frame body 340 is located between the first keycap abutment portion 3402 and the first bottom plate abutment portion 3406 (and the third bottom plate abutment portion 3408). Thereby, when the first frame body 340 is rotated to the bottom plate 30, the first frame body 340 will press down the second abutting arm 362 and the fourth abutting arm 364, thereby rotating the second frame body 360 to the bottom plate 30; When the second frame body 360 is rotated away from the bottom plate 30, the second abutting arm 362 and the fourth abutting arm 364 will lift the first frame body 340 upward, and the first frame body 340 will be rotated away from the bottom plate 30. On the other hand, the first bracket 34 and the second bracket 36 are driven to rotate through the first abutting arm 342, the second abutting arm 362, the third abutting arm 344, and the fourth abutting arm 364.

In addition, in this embodiment, both the first bracket 34 and the second bracket 36 are in a ""-shaped structure, and they are alternately arranged and connected to form a square-shaped structure, and the elastic reset member 40 passes through the square-shaped structure. The first bracket 34 and the second bracket 36 have the same structure, which is beneficial to reduce manufacturing costs, but is not limited to this in practice. Moreover, in principle, the first bracket 34 can be linked to the second bracket 36 through one of the first abutting arm 342 and the third abutting arm 344, and similarly, the second bracket 36 can be linked to the second abutting arm 362 and One of the fourth abutting arms 364 is linked with the first bracket 34.

In addition, please refer to FIGS. 22 to 24. In this embodiment, the first bottom plate abutting portion 3406 has a first through hole 3406a, the third bottom plate abutting portion 3408 has a third through hole 3408a, and the first hook 302 and the third hook 306 respectively extend into the first through hole 3406a and the third through hole 3408a, and hook the edge of the first through hole 3406a and the third through hole 3408a to hook the first bottom plate abutting portion 3406 and the third bottom plate abut 部3408. The second bottom plate abutment portion 3606 has a second through hole 3606a, the fourth bottom plate abutment portion 3608 has a fourth through hole 3608a, and the second hook 304 and the fourth hook 308 respectively extend into the second through hole 3606a and The fourth through hole 3608a can hook the second bottom plate abutment portion 3606 and the fourth bottom plate abutment portion 3608 by hooking the edge of the second through hole 3606a and the fourth through hole 3608a. But the implementation is not limited to this. For example, the first hook 302 and the third hook 306 directly hook the outer edge of the first bottom plate abutting portion 3406 (or hook the notch structure formed there); the second hook 304 and the fourth hook 308 The same is the same and will not be repeated.

In addition, in this embodiment, the first hook 302 has an opening direction 302a, and the first limiting post 310 is disposed on one side of the first hook 302 in the opening direction 302a; the same is true for the second hook 304, no more. Repeat. In practice, the first through hole 3406a can also be structurally integrated with the first limiting hole 3410. As shown in FIG. 28, a key structure 5 according to an embodiment is roughly the same as the key structure 3. Therefore, the key structure 5 uses the component symbols of the key structure 3. Therefore, for other descriptions of the key structure 5 and its variations, please Directly refer to the relevant description of the key structure 3, and will not repeat it. In the button structure 5, the bottom plate 50 includes a first hook 502, a second hook 504, a third hook 506, a fourth hook 508, a first limit post 510, and a second limit Position post 512, a third limit post 514 and a fourth limit post 516, the first limit post 510, the second limit post 512, the third limit post 514 and the fourth limit post 516 are correspondingly adjacent The first hook 502, the second hook 504, the third hook 506, and the fourth hook 508 are provided; wherein, the first hook 502 has an opening direction 502a, and the first limiting post 510 is provided on the first hook 502 is opposite to one side of the opening direction 502a; other structural configurations are also the same, and will not be repeated.

In addition, the first bracket 54 of the key structure 5 includes a first limiting hole 5410 and a third limiting hole 5411 formed in the first bottom plate abutting portion 3406 and the third bottom plate abutting portion 3408 correspondingly. The first hook 502 and the first limit post 510 extend into the first limit hole 5410, and the third hook 506 and the third limit post 514 extend into the third limit hole 5411. The second bracket 56 of the key structure 5 includes a second limiting hole 5610 and a fourth limiting hole 5611 formed in the second bottom plate abutting portion 3606 and the fourth bottom plate abutting portion 3608 correspondingly. The second hook 504 and the second limit post 512 extend into the second limit hole 5610, and the fourth hook 508 and the fourth limit post 516 extend into the fourth limit Bit hole 5611.

In addition, in the foregoing key structure 1, the connection structure between the first bracket 14 and the second bracket 16 and the key cap 12 can also be applied to the key structure 3 here, and will not be described in detail; for the same reason, the first bracket 34 and the The connection structure between the two brackets 36 and the key cap 32 is also applicable to the key structure 1 here, and will not be described in detail.

The foregoing descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall fall within the scope of the present invention.

1: Button structure

10: bottom plate

102, 104: Board

12: keycap

122: cap body

124: First Chute

128: second chute

14: The first bracket

14a, 14b: side

146: first engagement part

148: The first snap

150: first keycap abutment

152: first sliding part

154: The first horizontal limit slot

16: second bracket

16a, 16b: side

162: second engagement part

164: The second snap

166: Second keycap abutment

168: second sliding part

170: second horizontal limit slot

182: The first guide groove

184: first synapse

186: Third Guide Slot

188: third synapse

202: Second guide groove

204: second synapse

206: The fourth guide groove

22: Switch circuit board

222: switch

24: Elastic reset piece

Claims (37)

A key structure includes: a bottom plate; a key cap disposed on the bottom plate; a first bracket connected to the key cap; and a first pivot structure through which the first bracket passes Connected to the bottom plate so that the first bracket can rotate relative to the bottom plate about a first rotation axis, the first pivot structure includes: a first guide groove extending perpendicular to the first rotation axis and Has a first opening and a first recess, the first recess is recessed parallel to the first rotation axis, the first guide groove is disposed in one of the first bracket and the bottom plate; and a first protruding shaft , The first protruding shaft is rotatably locked into the first recess with respect to the first rotation axis, and the first protruding shaft is disposed on the other of the first bracket and the bottom plate relative to the first guiding groove. The key structure according to claim 1, wherein the key cap moves parallel to a vertical direction relative to the bottom plate via the first bracket, and the first guiding groove extends parallel to the vertical direction. The button structure according to claim 1, wherein the first guiding groove is disposed on the bottom plate, and the first protruding shaft is disposed on the first bracket. The key structure according to claim 3, wherein the first guiding groove is formed by a cantilever plate extending upward from the bottom plate. The button structure according to claim 3, wherein the first protruding shaft is formed laterally protruding from a cantilever plate of the first bracket. The button structure according to claim 5, wherein the cantilever plate extends obliquely toward the first guide groove. The button structure according to claim 1, wherein the first recess is a through hole. The button structure according to claim 1, further comprising a second bracket connected between the keycap and the bottom plate, wherein the first bracket includes one of an engaging portion and an engaging piece, the second The bracket includes the other of the clamping part and the clamping piece, and the clamping piece is clamped into the clamping part, so that the first bracket and the second bracket are mutually driven to rotate. The button structure according to claim 8, further comprising a second pivot structure, wherein the second bracket is connected to the bottom plate via the second pivot structure, so that the second bracket can surround a first Two rotating shafts rotate, the first rotating shaft and the second rotating shaft are parallel, the second pivoting structure includes a second guiding groove and a second protruding shaft, and the second guiding groove is perpendicular to the The second rotation axis extends and has a second opening and a second recess, the second recess is recessed parallel to the second rotation axis, and the second guide groove is disposed in one of the second bracket and the bottom plate The second protruding shaft is rotatably locked into the second recess with respect to the second rotation axis, and the second protruding shaft is disposed in the second bracket and the bottom plate relative to the second guide groove another. The button structure according to claim 9, wherein the first guide groove and the second guide groove are formed by a plate portion extending upward from the bottom plate, the first protruding shaft is disposed on the first bracket, and the second guide groove Two protruding shafts are arranged on the second bracket. The button structure according to claim 8, wherein the first bracket has two opposite sides with respect to the first rotation axis, and the first bracket is connected to the keycap with one side and the second side with the second side The two brackets drive each other to rotate. The button structure according to claim 1, further comprising a second bracket connected between the keycap and the bottom plate, wherein the first bracket includes a first engaging portion and a first engaging piece on the The first rotating axis is spaced apart from each other, the second bracket includes a second engaging portion and a second engaging piece, which is spaced apart from the second rotating axis, and the first engaging piece engages in the second engaging piece. And the second engaging piece is locked into the first engaging portion, so that the first bracket and the second bracket are mutually driven to rotate. The button structure according to claim 1, further comprising a second bracket connected between the keycap and the bottom plate, wherein the first bracket includes a first pushing portion and a first abutting surface. The two brackets include a second abutting portion and a second abutting surface, the first abutting portion continuously sliding against the second abutting surface and the second abutting portion continuously sliding against the first abutting surface , So that the first support and the second support are mutually driven to rotate. The button structure according to claim 13, wherein the first abutting surface is a flat surface facing the bottom plate. The button structure according to claim 14, wherein the second pressing portion is a curved surface or a sharp edge. The button structure according to claim 13, wherein the first pressing portion linearly contacts the second pressing surface, and the second pressing portion linearly contacts the first pressing surface. The button structure according to claim 1, wherein the first pivotal structure includes a third guide groove and a third protruding shaft, and the third guide groove extends perpendicular to the first rotation axis and has a Three openings and a third recess, the third recess is recessed parallel to the first rotation axis, the third protruding shaft is rotatably locked into the third recess relative to the first rotation axis, and the first guide The guide groove and the third guide groove are disposed on one of the first bracket and the bottom plate, and the first protruding shaft and the third protruding shaft are disposed relative to the first guide groove and the third guide groove On the other of the first bracket and the bottom plate. The button structure according to claim 17, wherein the first protrusion shaft and the third protrusion shaft are located between the first guide groove and the third guide groove in the first rotation axis, and the first protrusion The shaft and the third protruding shaft respectively protrude laterally from two cantilever plates located on opposite sides of the first bracket. The button structure according to claim 18, wherein the two cantilever plates extend obliquely toward the first guide groove and the third guide groove, respectively. The button structure according to claim 17, wherein the first guide groove and the third guide groove are located between the first protruding shaft and the third protruding shaft in the first rotation axis, and the first guide The guiding groove and the third guiding groove are respectively formed by two cantilever plates extending from two opposite sides of the first bracket. The key structure of claim 1, wherein the key cap includes a cap body and a sliding groove provided on the cap body, the cap body has a bottom surface facing the bottom plate, and the sliding groove has a bottom surface opposite to the bottom surface. The surface is a sliding surface. The first bracket includes a keycap abutment portion and a sliding portion. The keycap abutment portion abuts against the bottom surface, and the sliding portion slides against the sliding surface. The button structure according to claim 21, wherein the sliding portion is a cantilever structure extending perpendicular to the first rotation axis, and a free end of the cantilever structure slides against the sliding surface. The key structure according to claim 21, wherein the key cap includes a limit block disposed on the cap body, the first bracket has a horizontal limit slot, and the limit block is relatively slidingly inserted into the horizontal limit groove. A key structure includes: a bottom plate, including a first hook, a first limit post, a second hook, and a second limit post; a key cap arranged on the bottom plate; a first The bracket includes a first bracket body and a first abutting arm extending from the first bracket body. The first bracket is connected between the keycap and the bottom plate by the first bracket body, the first bracket body There is a first bottom plate abutment portion and a first limiting hole, the first bottom plate abutment portion abuts the bottom plate, the first frame is rotatable relative to the bottom plate via the first bottom plate abutment portion, the first A hook hooks the first bottom plate abutment portion, the first limiting post extends into the first limiting hole; and a second bracket including a second frame body and one extending from the second frame body The second abutting arm, the second frame body is connected between the keycap and the bottom plate by the second frame body, the second frame body has a second bottom plate abutment portion and a second limiting hole, the The second bottom plate abutting portion abuts the bottom plate, the second frame body can rotate relative to the bottom plate via the second bottom plate abutting portion, the second hook hooks the second bottom plate abutting portion, and the second limit The positioning post extends into the second limiting hole, the first abutting arm is located between the second frame and the bottom plate and abuts against the second frame, and the second abutting arm is located between the first frame and the bottom plate. Between the bottom plates and against the first frame. The button structure according to claim 24, wherein the first bottom plate abutting portion is located at an end of the first frame, the first abutting arm extends from the first bottom plate abutting portion, and the second bottom plate abuts The portion is located at one end of the second frame body, and the second abutting arm extends from the second bottom plate abutting portion. The button structure according to claim 25, wherein the first frame body has a first ㄇ-shaped structure and has a third bottom plate abutment portion that abuts against the bottom plate, the first bottom plate abutment portion and the third bottom plate The abutting portion is located at both ends of the first U-shaped structure, the first bracket includes a third abutting arm extending from the third bottom plate abutting portion, and the third abutting arm is located between the second frame body and the Between the bottom plates and against the second frame. The button structure according to claim 26, wherein the second frame body has a second U-shaped structure and has a fourth bottom plate abutting portion abutting against the bottom plate, the second bottom plate abutting portion and the fourth bottom plate The abutting portion is located at both ends of the second U-shaped structure, the second bracket includes a fourth abutting arm extending from the fourth bottom plate abutting portion, and the fourth abutting arm is located between the first frame body and the Between the bottom plates and against the first frame. The button structure according to claim 27, wherein the first bracket and the second bracket have the same structure. The button structure according to claim 27, wherein the first ㄇ-shaped structure and the second ㄇ-shaped structure are alternately arranged. The button structure according to claim 26, wherein the bottom plate includes a third hook for hooking the third bottom plate abutting portion. The button structure according to claim 24, wherein the first bottom plate abutting portion has a through hole, and the first hook extends into the through hole. The button structure according to claim 31, wherein the first hook has an opening direction, and the first limiting post is disposed on one side of the first hook in the opening direction. The button structure according to claim 24, wherein the first limiting hole is located on the first bottom plate In the back part, the first hook extends into the first limiting hole. According to the key structure of claim 33, the first hook has an opening direction, and the first limiting post is disposed on a side of the first hook opposite to the opening direction. The button structure according to claim 24, wherein the bottom plate includes a metal plate body and a plastic part that is mutually engaged with the metal plate part, and the plastic part forms the first hook, the first limit post, and the The second hook and the second limit post. The key structure according to claim 24, wherein the key cap includes a cap body and a vertical limit groove provided on the cap body, the cap body has a bottom surface facing the bottom plate, and the vertical limit groove has Relative to a limiting surface of the bottom surface, the first frame body includes a keycap abutment portion and a limiting portion. The keycap abutment portion abuts against the bottom surface. When the keycap is not pressed, The limiting portion abuts against the limiting surface. The key structure according to claim 36, wherein the key cap includes a limit block disposed on the cap body, the first bracket has a horizontal limit slot, and the limit block is relatively slidingly inserted into the horizontal limit groove.

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