TWI781045B - Keyswitch support connection structure - Google Patents

Abstract

A keyswitch support connection structure incudes a bottom plate portion, a cantilever plate, and a joining portion. The bottom plate portion has a joining hole. The cantilever plate is disposed at a side of the joining hole and extends upward along a plane from a side edge of the joining hole. The cantilever plate has a holding structure located on the plane. The holding structure has two opposite open outer edges on both sides. The joining portion encapsulates the cantilever plate and has an embedded portion and a hook portion. The embedded portion fills up the joining hole. The hook portion extends in the normal direction of the plane and has a concave wall surface so as to form a support connection portion. The support connection portion has a sliding slot for sliding connection with a keyswitch support.

Description

Button bracket connection structure

The present invention relates to a key structure, in particular to a key bracket connection structure of the key structure.

The keyboard keys of general notebook computers usually use scissor legs to provide keycap support and lifting mechanism. In order to save space, usually the structural bottom plate is directly used to form the structure connected with the bracket, so that the bracket can be rotatably connected to the bottom plate. The bottom plate is generally formed by punching metal plates to form a connection structure, but the precision of the bent structure size is not easy to control, and the strength of the formed connection structure and the contact area with the bracket are limited by the thickness of the metal plate, which affects the stability of the key operation . This problem is exacerbated when the key size is reduced. Another method is to form a connection structure connected to the bracket on the base plate by embedding and injection. In principle, the connection strength between the connection structure and the base plate is achieved through structural mutual fitting. When the size of the button is reduced, the size of the connection structure will be smaller, making it difficult to maintain the connection strength between the connection structure and the bottom plate. The plastic material is usually softer than the metal bottom plate, so when the keycap and the bracket need to be replaced, the connecting structure will be pulled by the bracket and the bottom plate, so that the plastic connecting structure is easily deformed, or even damaged, making it unusable.

In view of the problems in the prior art, an object of the present invention is to provide a key support connection structure, which uses a cantilever plate extending upward and having a clamping structure to increase the structural bonding strength.

A key support connection structure according to the present invention includes a bottom plate, a cantilever plate and a joint portion. The bottom plate has a combination hole. The cantilever plate is arranged on one side of the combination hole and extends upward along a plane from the side of the combination hole. The cantilever plate has a clamping structure located on the plane. The holding structure has two opposite open outer edges on both sides. The joint part covers the cantilever plate and has an embedding part and a hook groove part. The buried portion fills up the bonding hole. The hook groove portion extends along the normal direction of the plane and has an inner concave wall surface to form a bracket connection. The bracket connecting part has a sliding slot for slidingly connecting with a button bracket. Thereby, the cantilever plate itself can increase the contact area with the joint part, and the clamping structure can increase the degree of interference with the joint part structure, both of which can increase the contact area between the joint part and the bottom plate part and the cantilever plate The bonding strength is conducive to maintaining the structural stability of the connecting part of the stent.

The advantages and spirit of the present invention can be further understood through the following detailed description of the invention and the accompanying drawings.

1: Button structure

12: Keycap

14: The first button bracket

142: base connection part

16: The second button bracket

162: base connection part

18: base

18a, 18b: bracket connection part

18c: Chute

18d: opening

180a, 180a', 180b: button support connection structure

182, 182', 182", 183, 183a: floor part

1822, 1822', 1822", 1832, 1834: binding holes

1822a, 1822b, 1822c, 1822d, 1834a: side

1822e: Center Hole

1822f: side hole

1824, 1825: bottom surface

1826,1827: upper surface

1828: binding hole

1828a, 1828c: side holes

1828b: Middle hole

1830,1830a: convex bridge

1830b: top surface

184, 184', 184", 185, 185a: cantilever plate

184a: fixed end

184b: free end

184c, 184d: outer edge

1842, 1842a, 1842b, 1852: clamping structure

186,187: joint

1862,1874: Buried part

1864,1872: Hook and groove

1864a: bottom end

1864b: Wall

1866, 1876: wing

1868, 1878: ribs

1872a: contact surface

188: junction

1881a, 1881b: hook groove

1881c, 1881d: Bottom

1882: Buried part

1884: wing

1886: shaft groove

1888: side walls

D1: the first direction

D2: Second direction

Dv: vertical direction

Dn: normal direction

R1, R2: axis of rotation

P1: Plane

FIG. 1 is an exploded view of a key structure according to a first embodiment.

Fig. 2 is an enlarged view of circle A in Fig. 1 .

Fig. 3 is an exploded view of the base in Fig. 2 .

Fig. 4 is a cross-sectional view of the base in Fig. 2 along line X-X.

Fig. 5 is a sectional view of the base along line Y-Y in Fig. 2 .

FIG. 6 is an enlarged view of circle B in FIG. 1 .

Fig. 7 is an exploded view of the base in Fig. 6 .

Fig. 8 is a cross-sectional view of the base in Fig. 6 along line Z-Z.

Fig. 9 is a cross-sectional view of the base in Fig. 6 along the line W-W.

Fig. 10 is a schematic diagram of a base cantilever plate according to a second embodiment.

Fig. 11 is a schematic diagram of a base cantilever plate according to a third embodiment.

Fig. 12 is a schematic diagram of a base cantilever plate according to a fourth embodiment.

Fig. 13 is a schematic diagram of a connection structure of a key support according to a fifth embodiment.

FIG. 14 is an exploded view of the connection structure of the button support in FIG. 13 .

Fig. 15 is a sectional view along line V-V in Fig. 13 .

Fig. 16 is a cross-sectional view of the connection structure of the key holder according to a sixth embodiment.

Fig. 17 is a cross-sectional view of the connection structure of the key holder according to a seventh embodiment.

Fig. 18 is a cross-sectional view of the connection structure of the key holder according to an eighth embodiment.

See Figure 1. According to a first embodiment, a button structure 1 includes a keycap 12, a first button bracket 14, a second button bracket 16 and a base 18, the keycap 12 is arranged on the base 18, and the first button bracket 14 And the second key frame 16 is connected between the keycap 12 and the base 18, so that the keycap 12 can move vertically relative to the base 18 through the first key frame 14 and the second key frame 16 (or parallel to the vertical direction Dv (with Double-headed arrows indicate in the figure) movement). Wherein, the base 18 includes two bracket connecting portions 18a and two bracket connecting portions 18b, the first button bracket 14 is rotatably and slidably connected to the base 18 via the bracket connecting portion 18a, and the second button bracket 16 can be connected via the bracket connecting portion 18b. It is pivotally connected to the base 18 .

Please also refer to Figures 2 to 5. For the bracket connecting portion 18 a connected to the first button bracket 14 , the base 18 includes a bottom plate portion 182 , a cantilever plate 184 and a joint portion 186 . The first button bracket 14 is rotatably and slidably connected to the bottom plate portion 182 of the base 18 via the bracket connecting portion 18a, and the second key bracket 16 is rotatably connected to the bottom plate portion 182 of the base 18 via the bracket connecting portion 18b. The bottom plate portion 182 has a combination hole 1822 , and the cantilever plate 184 extends upwards from the combination hole 1822 along a plane P1 (shown by a chain line in FIG. 4 ) and has two opposite open outer edges on two sides thereof. The cantilever plate 184 has a clamping structure 1842 (shown as a chain line frame in FIG. 3 and FIG. 5 ), which is located on the plane P1. The coupling portion 186 and the coupling hole 1822 are fixedly fitted to each other and cover the cantilever plate 184 (including the clamping structure 1842 ). The joint portion 186 and the bottom plate portion 182 jointly form the bracket connection portion 18a. Wherein, the combination of the bottom plate portion 182 , the cantilever plate 184 and the joint portion 186 can be regarded as a key support connection structure 180 a for connecting with the first key support 14 .

In the first embodiment, the cantilever plate 184 has a fixed end 184 a and a free end 184 b, and the cantilever plate 184 is fixed to the bottom plate portion 182 by the fixed end 184 a. The clamping structure 1842 is a constricted part of the cantilever plate 184, located between the fixed end 184a and the free end 184b. The constricted portion can increase the contact area between the joint portion 186 and the cantilever plate 184 and the degree of structural interference with the joint portion 186 . Bottom plate portion 182 and cantilever plate 184 are stamped by the same For example, stamping a metal plate to simultaneously form the bottom plate portion 182 and the cantilever plate 184 . Logically, the cantilever plate 184 is formed by bending and extending a part of the bottom plate portion 182 upwards. The joint portion 186 is an injection molded part, such as embedded plastic injection molding (embedding the bottom plate portion 182 together with the cantilever plate 184 and injecting plastic).

The bracket connecting portion 18a has a sliding slot 18c. The chute 18c extends parallel to the bottom plate portion 182 along a first direction D1 (indicated by a double-headed arrow in the figure), and has an opening 18d in the first direction D1, and the opening 18d is used for connecting the base of a first button bracket 14 The portion 142 (represented by a chain coil in FIG. 4 ) enters the slide groove 18c to be slidably connected with the bracket connecting portion 18a in the first direction D1. The base connecting portion 142 of the first button support 14 can also be in the sliding groove 18c, around the rotation axis R1 (shown by a chain line in FIG. In FIG. 4 ), the rotation axis R1 is parallel to a second direction D2 (indicated by a double-headed arrow in the figure). In addition, the combining hole 1822 has two opposite sides 1822a, 1822b along the first direction D1, and the cantilever plate 184 extends upward from the side 1822a close to the opening 18d among the two sides 1822a, 1822b. From the perspective of FIG. 4 , the opening 18d faces right, the cantilever plate 184 extends upward from the right side of the coupling hole 1822 , and the center of the first button bracket 14 is located on the left side of the bracket connecting portion 18a. When the first key support 14 is driven upward (for example, the keycap 12 moves upward to drive the first key support 14), when the base connecting portion 142 pulls the joint portion 186 upward and to the left, the aforementioned structural configuration can increase the resistance of the cantilever plate 184. This pulling force (that is to say, increases the overall structural strength of the key support connecting structure 180a).

The combining portion 186 includes an embedding portion 1862 , a hook groove portion 1864 , a wing portion 1866 and a rib portion 1868 . The bottom plate portion 182 has a bottom surface 1824 and an upper surface 1826 opposite to the bottom surface 1824 in the vertical direction Dv, and the combination hole 1822 penetrates through the bottom surface 1824 and the upper surface 1826 . The embedded portion 1862 fills the coupling hole 1822 and is coplanar with the upper surface 1826 ; the embedded portion 1862 integrally connects the wing portion 1866 downward, and integrally connects the bottom end 1864a of the hook groove portion 1864 and the bottom of the rib portion 1868 upward. The hook groove part 1864 protrudes from the upper surface 1826, and the part of the hook groove part 1864 away from the bottom plate part 182 extends along the normal direction Dn of the plane P1 (shown by an arrow in FIG. 4 ), and the hook groove part 1864 is in an upside-down L shape overall , and the hook groove portion 1864 and the upper surface 1826 jointly form the bracket connecting portion 18a, so the bracket connecting portion 18a is located on the side of the upper surface 1826 . Slide groove 18c of bracket connection part 18a It is jointly defined by the inverted L-shaped wall surface 1864b of the hook groove portion 1864 of the joint portion 186 (or the inner concave wall surface in terms of structural logic), and the upper surface 1826 of the bottom plate portion 182 adjacent along the first direction D1; that is, the slide groove 18c is located at Between the top of the bottom plate 182 and the hook groove 1864 , and the opening 18 d of the slide groove 18 c is located between the top of the bottom plate 182 and the hook groove 1864 . As mentioned above, the sliding slot 18c has an opening 18d in the first direction D1, and the sliding slot 18c and the hook groove portion 1864 are also open on opposite sides in the second direction D2. The wings 1866 protrude from the bottom surface 1824 and cover part of the bottom surface 1824 (or extend on the bottom surface 1824 parallel to the bottom surface 1824 ). The rib 1868 is located on the back side of the hook groove 1864 (that is, on the opposite side of the opening 18d). The width of the rib 1868 can be selectively not greater than the width of the hook groove 1864 or the width of the joint 186. The rib 1868 is parallel to the first direction D1 Extend outward beyond the side 1822b of the coupling hole 1822 , and the rib 1868 at least partially extends to cover the upper surface 1826 of the bottom plate portion 182 .

The wing portion 1866 is not only helpful to improve the bonding strength between the bonding portion 186 and the bottom plate portion 182, but also helps to resist the bonding portion 186 from being detached from the bottom plate portion 182 (for example, when the base connecting portion 142 of the first button bracket 14 pushes the bonding portion 186 upward , when pulling to the left). In order to prevent the joint part 186 from partially upwardly deforming or turning over when it is pulled by an external force, the rib 1868 helps to increase the overall structural strength of the joint part 186, so that the joint part 186 can resist the joint hole 1822 with the rib 1868 when it is subjected to an upward external force The side edge 1822b and the partial upper surface 1826 on the adjacent side also help to resist the detachment of the joint portion 186 from the bottom plate portion 182 . Furthermore, the bottom end 1864a of the hook groove portion 1864 at least partially extends to cover the upper surface 1826 of the bottom plate portion 182 beside the coupling hole 1822; in this way, the coupling portion 186 can be hooked before being deformed or turned over by an upward external force. The bottom end 1864a of the groove portion 1864 abuts against the hole wall of the coupling hole 1822 and the local upper surface 1826 adjacent to the hole wall, resisting the coupling portion 186 from detaching from the bottom plate portion 182 .

In addition, in the first embodiment, the wings 1866 are disposed on the portion of the bottom surface 1824 surrounding the coupling hole 1822 , that is, the wings 1866 extend from the coupling hole 1822 to cover the bottom surface 1824 . Therefore, the wings 1866 extend on the bottom surface 1824 perpendicular to the rotation axis R1 (that is, extend parallel to the first direction D1), and optionally extend on the bottom surface 1824 parallel to the rotation axis R1 (that is, parallel to the second direction D2 extended). In order to prevent the joint portion 186 from partially upwardly deforming or turning over when being pulled by an external force, this structural configuration enables the wing portion 1866 to help resist the joint portion 186 from detaching from the bottom plate portion 182 in all directions. But it is not limited to this in practice. For example, the wing portion 1866 only extends on the bottom surface 1824 parallel to the first direction D1. This structural configuration enables the joint portion 186 to push against the partial bottom surface 1824 around the joint hole 1822 with the wing portion 1866 when subjected to an upward external force. It has been possible to increase the resistance of the coupling portion 186 to detachment from the bottom plate portion 182 . For another example, the wing portion 1866 only extends on the bottom surface 1824 parallel to the first direction D1 and toward the opening 18d. This structural configuration can also increase the resistance of the joint portion 186 from the bottom plate portion 182 to a certain extent. In this embodiment, as shown in FIG. 5 , the contour of the vertical projection of the wing portion 1866 on the upper surface 1826 exceeds the contour of the vertical projection of the portion of the joint portion 186 upward beyond the bottom plate portion 182 on the upper surface 1826 .

Please refer to Figure 1, Figure 6 to Figure 9. For the bracket connecting portion 18b, the base 18 includes a joint portion 188 independently forming the bracket connecting portion 18b. The bottom plate portion 182 has a combination hole 1828 and two convex bridge portions 1830 , the combination hole 1828 extends along the first direction D1 , and the two convex bridge portions 1830 respectively extend along the second direction D2 . The two convex bridges 1830 are arranged at intervals along the first direction D1 and are higher than the upper surface 1826 of the base 18. The two convex bridges 1830 straddle the two sides connected to the coupling hole 1828 to connect the coupling hole in the first direction D1. 1828 is divided into three parts (ie in the vertical direction Dv). That is to say, the two convex bridges 1830 divide the coupling hole 1828 into exposed side holes 1828a, middle holes 1828b, and side holes 1828c along the first direction D1, wherein the side holes 1828a and the middle hole 1828b are connected to each other through the bottom of the convex bridges 1830 , and the middle hole 1828b and the side hole 1828c pass through each other via the bottom of another convex bridge portion 1830 , and the embedded portion 1862 fills the side hole 1828a , the middle hole 1828b , the side hole 1828c and the two through areas. The coupling portion 188 and the coupling hole 1828 are fixedly fitted to each other and cover the two convex bridge portions 1830 . Wherein, the combination of the bottom plate portion 182 and the joint portion 188 can be regarded as a key support connection structure 180 b for connecting with the second key support 16 .

In this embodiment, the shaft-shaped base connection portion 162 (shown as a chain coil in FIG. 8 ) of the second key holder 16 is pivotally connected to the joint portion 188 so as to be able to rotate around a rotation axis R2 perpendicular to the vertical direction Dv. (indicated by a chain line in Figure 1 and by a cross in Figure 8, parallel to the axis of rotation R2) Rotate, the axis of rotation R2 is parallel to the second direction D2. The two convex bridges 1830 are arranged in a direction perpendicular to the rotation axis R2 (also perpendicular to the vertical direction Dv), and the connection interface between the convex bridges 1830 and the coupling hole 1828 (shown in a dotted line frame in FIG. 7 ) is non-rectangular , which is arc-shaped, which can increase the moment of inertia of the convex bridge portion 1830 . If the outer sides of the two convex bridges 1830 are closed, that is, there are no two side holes 1828a/1828c, when the joint 188 is pulled out by force, the stress is easier to concentrate on the periphery of the middle hole 1828b, especially the two convex bridges 1830. Relative to the inner edge, the two convex bridges 1830 are easily deformed due to high stress. Therefore, the setting of the two-side holes 1828a/1828c helps to locally disperse the stress from the periphery of the middle hole 1828b to the surroundings of the two-side holes 1828a/1828c; in addition, the width of the two-side holes 1828a/1828c in the second direction D2 is not larger than that of the middle hole 1828b , so that the joint portion 188 can effectively disperse the stress to the two side holes 1828a/1828c when it is pulled out by force. From the perspective of FIG. 8 , the center position of the second button bracket 16 is located on the right side of the bracket connecting portion 18 b. When the second key support 16 is driven upward (for example, the keycap 12 moves upward to drive the second key support 16), when the base connecting portion 162 pulls the joint portion 188 upward and to the right, the aforementioned convex bridge with an arc-shaped connection interface The portion 1830 can increase the ability to resist the pulling force (that is, increase the overall structural strength of the key support connecting structure 180b).

The combining portion 188 includes two hook grooves 1881 a / 1881 b , an embedding portion 1882 and a wing portion 1884 . The two hook grooves 1881a/1881b are opposite to each other at intervals in the first direction D1, and the two inner concave wall surfaces facing each other of the two hook grooves 1881a/1881b jointly define a shaft groove 1886, and the shaft groove 1886 extends along the second direction D2 (rotational axis R2). , the shaft groove 1886 is at least partially open in the second direction D2 (rotational axis R2) and the vertical direction Dv, and the dimension of the shaft groove 1886 opening in the vertical direction Dv, that is, the distance between the free ends of the hook grooves 1881a/1881b, is roughly The diameter of the shaft-shaped structure is smaller than that of the base connecting portion 162 of the second key holder 16 . The two bottom ends 1881c/1881d of the two hook grooves 1881a/1881b are at least partly extended and attached to the upper surface 1826; in this way, the two bottom ends 1881c/1881d of the two hook grooves 1881a/1881b can push up when subjected to an upward external force. The wall of the combined hole 1828 (including the side hole 1828 a , the middle hole 1828 b , and the side hole 1828 c ) and the local upper surface 1826 adjacent to the hole wall resist the combination portion 186 from being separated from the bottom plate portion 182 . The embedded portion 1882 fills the bonding hole 1828 . The wings 1884 protrude from the bottom surface 1824 and cover a portion of the bottom surface 1824 (or extend on the bottom surface 1824 ). Wings 1884 of junction 188 The structure and function are the same as those of the wing 1866 of the above-mentioned joint 186; as shown in Figures 7 to 9, in this embodiment, the contour of the vertical projection of the wing 1884 on the upper surface 1826 completely exceeds the joint 188 and goes upward beyond the bottom plate The profile of the vertical projection of part of the portion 182 on the upper surface 1826 . Therefore, for other descriptions about the wing portion 1884 of the joint portion 188 , please refer to the previous relevant description about the wing portion 1866 of the joint portion 186 and its variations, and will not be repeated here. The shaft slot 1886 is rotatably connected to the base connecting portion 162 ; in other words, the coupling portion 188 independently implements the bracket connecting portion 18 b through the shaft slot 1886 . In addition, the joint part 188 includes a side wall 1888 on the rotation axis R2 and next to the shaft groove 1886 to connect the two hook grooves 1881a/1881b, which can increase the structural stability between the two hook grooves 1881a/1881b, and strengthen the joint. The structural strength of the shaft groove 1886 can also improve the stability of the pivot connection between the coupling portion 188 and the base connecting portion 162 .

In addition, in this embodiment, as shown in FIG. 3 , the cantilever plate 184 has an L-shaped neck extending from the bottom plate 182 and bent upward, and a head connected to one end of the L-shaped neck. Structurally, the step difference formed by different widths can be regarded as the necked part (as the clamping structure 1842 ). In practice, the neck constriction can also be implemented with other structures. For example, as shown in FIG. 10 , according to a second embodiment, the constriction of a cantilever plate 184 ′ is formed by notches on both sides of the cantilever plate 184 ′ to serve as a clamping structure 1842 a (shown in a chain frame in the figure). ). In addition, in Fig. 10, the cantilever plate 184' has two opposite outer edges 184c, 184d from its fixed end to the free end (that is, in the direction perpendicular to its extending direction), and the combination hole 1822' of the bottom plate portion 182' is perpendicular to There are two opposite sides 1822c, 1822d in the direction of the first direction D1, and the two outer edges 184c, 184d are directly connected to the two sides 1822c, 1822d respectively. This structural feature helps to increase the structural strength of the cantilever plate 184' itself. For another example, as shown in FIG. 11 , according to a third embodiment, a cantilever plate 184 ″ includes an inverted trapezoidal structure whose width decreases from top to bottom, so the entire inverted trapezoidal structure can be regarded as a constriction in structure, As the clamping structure 1842b (shown in the figure as a chain wire frame). In addition, in FIG. Punching without leaving clearance), this structural feature can reduce the joint hole 1822 "and the joint (not shown in Figure 11, refer to the joint 186/188 in Figure 1 to Figure 9) occupy the base 18 plate area, reduce the joint 186/ 188 volume, reduce the interference between the joint 186/188 and other components, and improve the base 18 plate utilization, and can increase the structural strength of the cantilever plate 184" itself.

In addition, in the first embodiment, as shown in FIG. 3 , the clamping structure 1842 uses a constricted portion to increase its bonding strength with the bonding portion 186 , but it is not limited in practice. For example, as shown in FIG. 12 , the clamping structure 1852 of a cantilever plate 185 according to a third embodiment includes a perforation (parallel to the bottom plate portion 183 through the cantilever plate 185), and the clamping structure 1852 increases its connection with ( 3) the bonding strength of the bonding portion 186. Also, this perforation can also be applied in the head of the cantilever plate 184 (as shown by the dashed line in FIG. 3 ). In addition, in FIG. 12 , the outline of the cantilever plate 185 and the outline of the combined hole 1832 of the bottom plate portion 183 help to increase the structural strength of the cantilever plate 185 itself.

In addition, in the first embodiment, as shown in FIG. 2 and FIG. 4 , the joint portion 186 and the bottom plate portion 182 jointly form the bracket connection portion 18 a, but the implementation is not limited thereto. For example, in a fifth embodiment shown in Figures 13 to 15, the joint portion 187 has a hook groove 1872, an embedded portion 1874, and a wing 1876 connected up and down, and the bottom of the hook groove 1872 has a contact surface 1872a In this way, the contact surface 1872a is at least partially in close contact with the upper surface 1827 of the bottom plate portion 183a. The embedded portion 1874 fills the coupling hole 1834 of the bottom plate portion 183a. The wing portion 1876 is closely attached to the bottom surface 1825 of the bottom plate portion 183a. The projection of the contact surface 1872a on the vertical direction Dv is located within the projection of the wing 1876 on the vertical direction Dv; as shown in Figure 14 and Figure 15, in this embodiment, the vertical projection of the wing 1876 on the upper surface 1827 The contour completely exceeds the contour of the vertical projection of the portion of the joint portion 187 upward beyond the bottom plate portion 183 a onto the upper surface 1827 . In this way, even though the wing portion 1876 is thinner, it still has a large distribution area to increase the ability to resist the detachment of the joint portion 187 from the bottom plate portion 183a. In addition, in this example, the connecting portion 187 independently forms the bracket connecting portion 18a (wherein, the combination of the bottom plate portion 183a, the cantilever plate 185a and the connecting portion 187 can be regarded as a button bracket connecting structure 180a'), that is, its chute is located at Between the top of the embedding part 1874 and the hook groove part 1872 , and the opening of the chute is located between the top of the embedding part 1874 and the hook groove part 1872 . Moreover, the cantilever plate 185a extends upward from the coupling hole 1834 of the bottom plate portion 183a in the first direction D1 away from the side 1834a of the hook groove portion 1872 . The joint portion 187 further includes a rib portion 1878 extending along the first direction D1 on its back side, and the rib portion 1878 is attached to the upper surface 1827 of the bottom plate portion 183a (that is, the entire upper surface of the bottom plate portion 183a 1827), the rib 1878 is not within the projection of the joint hole 1834, nor is it connected to the embedded part 1874 where the joint part 187 fills the joint hole 1834, but the rib 1878 and a part of the wing 1876 jointly clamp the bottom plate Section 183a.

In addition, in the first embodiment, the combination structure (comprising a cantilever plate 184) of the joint portion 186 (for forming the key bracket connecting structure 180a) and the bottom plate portion 182, and (for forming the key bracket connecting structure 180b) The combination structure of the combination portion 188 and the bottom plate portion 182 (including the two protruding bridge portions 1830 ) is different; however, the implementation is not limited thereto. For example, for the bracket connecting portion 18a, the cantilever plate 184 and the wing portion 1866 of the coupling portion 186 can be implemented in an optional manner. As another example, for the bracket connecting portion 18a, a structure such as a protruding bridge portion 1830 can be provided on the bottom plate portion 182 on the left side of the coupling hole 1822, and the coupling portion 186 also covers this structure. For another example, for the bracket connection part 18a, the cantilever plate 184 is removed and replaced with a structure such as the convex bridge part 1830 (spanning the joint hole 1822), and the joint part 186 covers this structure. For another example, for the bracket connecting portion 18b, one or two convex bridge portions 1830 are removed and replaced with a structure such as a cantilever plate 184 (or its variation) (extending upwards from both sides of the coupling hole 1828 respectively), and the coupling portion 188 includes overwrite this structure.

Specifically, the application of the cantilever plate 184/184'/184"/185/185a in the above-mentioned embodiments is not limited to the support connection part 18a or the joint part 186/187 of the above-mentioned embodiment. The cantilever plate 184/184' /184"/185/185a can also be applied to the bracket connection part 18b or the joint part 188 in Fig. 6-9.

Please refer to FIG. 16 and FIG. 17 , which are cross-sectional views of the sixth and seventh embodiments respectively, and their cross-sectional positions correspond to the line Z-Z in FIG. 6 . In FIG. 16 and FIG. 17 , most of the components correspond to the embodiment in FIG. 8 , and the components and structures with the same component names or component numbers have the same or similar technical features, which will not be repeated here.

In Fig. 16, the convex bridge part 1830 on the left side of Fig. 8 is replaced by one of the cantilever plates 184/184'/184"/185/185a, that is, the hook groove part 1881a and the embedded part 1882 still completely cover the right convex bridge part 1830, but the hook groove part 1881b is changed to completely cover the cantilever plate 184 (or one of 184'/184"/185/185a) on the left side in Figure 16, this cantilever plate 184 (or 184'/184"/185/185a one of them) from the A direction D1 bends and extends toward a vertical direction Dv.

The structure disclosed in FIG. 16 enables the joint part 188 having two hook groove parts 1881a/1881b to be combined with the bottom plate part 182 through a cantilever plate 184 (or one of 184'/184"/185/185a) and a convex bridge part 1830 , and the bracket connection portion 18b formed by the two hook groove portions 1881a/1881b of the joint portion 188 can also rely on the cantilever plate 184 (or one of 184'/184"/185/185a) and the convex bridge portion 1830 to provide High-strength pullout resistance.

Similarly, in FIG. 17, the two convex bridge parts 1830 in FIG. The upper embedded part 1882 completely covers the two cantilever plates 184 (or one of 184'/184"/185/185a) that are opposite to each other in Fig. 17, and the two cantilever plates 184 (or 184'/184"/185/185a One of them) is respectively bent and extended from the first direction D1 to the vertical direction Dv.

The structure disclosed in Fig. 17 enables the joint part 188 having two hook groove parts 1881a/1881b to be combined with the bottom plate part 182 through two cantilever plates 184 (or one of 184'/184"/185/185a), and the joint part The bracket connecting portion 18b formed by the two hook grooves 1881a/1881b of 188 can also rely on the two cantilever plates 184 (or one of 184'/184"/185/185a) to jointly provide high-strength pullout resistance.

Please refer to FIG. 18 , which is a cross-sectional view of the eighth embodiment, and its cross-sectional position corresponds to the line X-X in FIG. 2 . Figure 18 is generally similar to the corresponding embodiment in Figure 4, the difference is that compared with Figure 4, the coupling hole 1822 (refer to Figure 4) is further provided with a convex bridge portion 1830a (that is, equivalent to the convex bridge portion 1830 in Figure 7 and Figure 8) The protruding bridge portion 1830a straddles the two sides connected to the coupling hole 1822 to divide the coupling hole 1822 into two parts in the vertical direction Dv. That is, the convex bridge portion 1830a divides the coupling hole 1822 into an exposed middle hole 1822e and a side hole 1822f in sequence along the first direction D1, and the middle hole 1822e and the side hole 1822f communicate with each other through the bottom of the convex bridge portion 1830a, and are formed by the embedded portion 1862 fills the central hole 1822e, the side hole 1822f and the through area. The extension axis of the cantilever plate 184 (ie parallel to the vertical direction Dv) is perpendicular to the top surface 1830b of the convex bridge portion 1830a. In this embodiment, the cantilever plate 184 is adjacent to the hook groove portion 1864, and the convex bridge portion 1830a is close to the back side of the joint portion 186 and the rib portion 1868; if any If necessary, the cantilever plate 184 can also be changed to be close to the back side of the joint part 186 and the rib 1868 , and the convex bridge part 1830a can be changed to be close to the hook groove part 1864 .

Furthermore, no matter the wings 1866/1876/1884 of the above-mentioned embodiments are attached to the bottom surface 1824/1825 or the upper surface 1826/1827, the larger the area of the wings 1866/1876/1884, the more resistant it is to a certain extent. External force prevents the joint part 186 from detaching from the bottom plate part 182/183a. However, if the peripheral size of the wing part 1866/1876/1884 is too large, it will also crowd out other components in the key structure 1 or the configuration of the backlight effect. The design of the wing part 1866/1876/1884 needs to consider the overall functional performance of the key structure 1 and Avoid interfering with surrounding related components.

Although the key support connection structures 180a/180a'/180b of the above-mentioned embodiments focus on the resistance of the external pulling force, the modern automated assembly process may adopt various combinations of the foregoing when installing the first key support 14 and/or the second key support 16. Interference assembly of part 186/187188 (hook and groove part 1864/1872/1881a/1881b). The multi-collocation arrangement of the convex bridge portion 1830/1830a, the rib portion 1868/1878, the bottom of the upper hook groove portion 1872, the wing portion 1866/1876/1884, and the cantilever plate 184/184'/184"/185/185a of the aforementioned embodiments, It also helps the key support connection structure 180a/180a'/180b strengthen the structural resistance of the key support connection structure 180a/180a'/180b when the first key support 14 and/or the second key support 16 are assembled by interference.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

180a: Button support connection structure

182: bottom plate

1822: binding hole

1822a, 1822b: side

1826: upper surface

184:Cantilever plate

184a: fixed end

184b: free end

1842:Clamping structure

186: junction

1862: Buried part

1864: Hook and groove

1864a: bottom end

1864b: Wall

1866: wing

1868: Ribs

D1: the first direction

D2: Second direction

Dv: vertical direction

Claims (10)

A button support connection structure, comprising: a bottom plate with a combination hole; a cantilever plate arranged on one side of the combination hole and extending upward along a plane from the side of the combination hole, and two opposite sides of the cantilever plate Open outer edge, the cantilever plate has a clamping structure, located on the plane; and a joint part, covering the cantilever plate and has a buried part and a hook groove part, the buried part fills the joint hole, the hook groove The part extends along the normal direction of the plane and has an inner concave wall surface to form a bracket connecting part, and the bracket connecting part has a slide groove for sliding connection with a button bracket. The key support connection structure according to claim 1, wherein the slide groove is located between the top of the bottom plate and the hook groove. The key support connection structure according to claim 1, wherein the slide groove is located between the upper part of the embedded part and the hook groove part. The key support connection structure as described in claim 1, wherein the chute extends parallel to the bottom plate along a first direction and has an opening for the key support to enter the chute so as to connect with the support connection portion on the Swipe up to connect in the first direction. The key support connection structure according to claim 4, wherein the opening of the slide groove is located between the top of the bottom plate and the hook groove. The key support connection structure according to claim 4, wherein the opening of the chute is located between the upper part of the embedded part and the hook groove part. The key support connection structure as claimed in claim 4, wherein the joint portion has a rib extending parallel to the first direction, and the rib at least partially extends to the upper surface of the bottom plate. The key support connection structure as claimed in claim 1, wherein the clamping structure is a constricted portion of the cantilever plate. The key support connection structure according to claim 1, wherein the clamping structure is a perforation penetrating through the cantilever plate parallel to the bottom plate. The connection structure of the key support according to claim 1, wherein the joint part has a wing protruding from the bottom surface of the bottom plate and extending parallel to the bottom surface on the bottom surface, and the wing is above the bottom plate The contour of the vertical projection of the surface at least partly exceeds the contour of the vertical projection of the part of the joint portion upward beyond the bottom plate portion on the upper surface.

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