TWI672717B - Keyswitch structure - Google Patents

Abstract

The invention provides a button structure, comprising: a button support shaft, a spring piece, a button seat and a key cap. When the external force presses the keycap, the button support shaft drives the elastic piece to move, so that the pushing portion of the button seat pushes against the elastic portion of the elastic piece and elastically deforms. Then, the elastic portion elastically recovers over the pushing portion, causing the elastic portion to swing and hit the inner surface of the key groove of the button seat to generate an acoustic sound.

Description

Button structure

The present invention relates to the structure of an input device, and more particularly to a button structure.

In today's society, the use of electronic products has become an indispensable part of life. Everything is related to electronic products, such as food, clothing, housing, transportation, education and music. Generally speaking, electronic products are equipped with a button structure, and the mechanical keyboard is widely loved by consumers because of its good pressing feel and knocking sound. However, the existing mechanical keyboard has many components, resulting in an overly complicated structure and difficulty in assembly.

Therefore, how to provide a button structure that is simple in structure and easy to assemble, and at the same time has a paragraph feeling and a knocking sound with a mechanical keyboard pressing, which is a technical problem to be solved by the present invention.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a button structure that is simple in construction and easy to assemble, and that has a paragraph feel and a knocking sound that are mechanically pressed by a keyboard.

To achieve the foregoing objective, the present invention provides a button structure including: The button support shaft includes: a receiving groove; and an opening portion communicating with the receiving groove; the elastic piece is disposed in the receiving groove, the elastic piece has an elastic portion and partially penetrates the opening portion; and the button seat comprises: a key groove, The button support shaft is vertically displaceably disposed in the button slot; and the pushing portion is disposed on the inner surface of the button slot, and the pushing portion corresponds to the elastic portion; and the key cap is coupled to the button supporting shaft; wherein, when the external force is When the keycap is pressed, the pushing portion pushes against the elastic portion to be elastically deformed, and then the elastic portion elastically recovers over the pushing portion, and the elastic portion swings and hits the inner surface of the key groove to generate an acoustic sound.

In the above preferred embodiment, the switch module is further disposed on the bottom of the button base. The switch module includes a thin film circuit board and an elastic body disposed on the thin film circuit board, and the elastic body is located in the key slot. in.

In the above preferred embodiment, when the external force presses the keycap, the button support shaft presses the elastic body to cause the switch module to generate a corresponding button signal.

In the above preferred embodiment, when the external force is released, the elastic body recovers elastically and provides an elastic restoring force to the button support shaft, and the elastic portion impacts during the resetting process of the button support shaft and passes over the pushing portion to generate an acoustic sound.

In the above preferred embodiment, the opening portion includes a first opening and a second opening.

In the above preferred embodiment, the elastic portion includes a first elastic arm and a second elastic arm, the first elastic arm portion passes through the first opening, and the second elastic arm portion passes through the second opening.

In the above preferred embodiment, the pushing portion includes the first pushing protrusion and the second pushing protrusion, and the first pushing protrusion and the second pushing protrusion respectively have inclined surfaces.

In the above preferred embodiment, when an external force presses the keycap, The first elastic arm and the second elastic arm respectively abut against the inclined surfaces of the first pushing protrusion and the second pushing protrusion, and are elastically deformed along the inclined surface.

In the above preferred embodiment, the elastic piece has a fixing member, and the fixing member is connected to the first elastic arm and the second elastic arm, and the fixing member is disposed in the receiving groove to fix the elastic piece.

In the above preferred embodiment, the outer surface of the button support shaft has a button protrusion, and the inner surface of the button slot has a button stop block corresponding to the button protrusion, and the button protrusion is used to abut the button stop block. On the top, the button support shaft stops moving downward.

In the above preferred embodiment, the button bump is located above the opening.

In the above preferred embodiment, the button stop block is located below the pushing portion.

In the above preferred embodiment, the keycap has a first engaging structure, and the button supporting shaft has a second engaging structure, and the first engaging structure is engaged with the second engaging structure to detachably bond the keycap. Support the shaft with the button.

F‧‧‧External force

S‧‧‧ sloped surface

10‧‧‧Key Cap

101‧‧‧First engagement structure

20‧‧‧Key support shaft

201‧‧‧Second engagement structure

202‧‧‧ accommodating slots

203‧‧‧Key bumps

204‧‧‧ openings

204L‧‧‧first opening

204R‧‧‧ second opening

205‧‧‧ engaging ribs

30‧‧‧Keypad

31‧‧‧Key slot

311‧‧‧Key stop block

312‧‧‧Pushing Department

312L‧‧‧first push-up bump

312R‧‧‧second push-up bump

40‧‧‧Switch Module

41‧‧‧Film board

42‧‧‧ Elastomers

50‧‧‧Shrap

501‧‧‧ Fixed Department

502‧‧‧Flexible Department

502L‧‧‧first arm

502R‧‧‧Second arm

1 is a perspective view of a key structure of the present invention; FIG. 2A is an exploded perspective view of a key structure provided by the present invention; FIG. 2B is a perspective exploded view of another key view of the key structure provided by the present invention; Figure 3; and Figure 3: is a schematic diagram of the actuation of the button structure of the present invention.

Advantages and features of the present invention and methods for achieving the same will be exemplified The embodiments and the drawings are described in more detail and are easier to understand. However, the invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a thorough and complete and complete disclosure of the scope of the invention.

First, please refer to FIG. 1, which is a perspective view of the button structure of the present invention. The button structure 1 of the present invention includes a keycap 10, a button support shaft 20, a button base 30, and a switch module 40.

2A and 2B, FIG. 2A is a perspective view of a key structure of the present invention. FIG. 2B is a perspective view of another key view of the button structure provided by the present invention. In FIGS. 2A and 2B, the lower surface of the keycap 10 of the button structure 1 has a first engaging structure 101. The button support shaft 20 has a second engaging structure 201 , a receiving groove 202 , a button protrusion 203 , an opening 204 , and an engaging rib 205 . The second engaging structure 201 is located at the top end of the button supporting shaft 20 and is combined with the first engaging structure 101 of the keycap 10 to detachably couple the keycap 10 to the button supporting shaft 20, so that the user The keycaps having different colors, shapes, or materials may be replaced according to requirements or preferences. In this embodiment, the first engaging structure 101 is a cross-shaped groove, and the second engaging structure 201 is a cross-shaped shaft. Rod.

The accommodating groove 202 is disposed inside the button support shaft 20 , and the opening portion 204 is in communication with the accommodating groove 202 . In the embodiment, the opening portion 204 includes a first opening 204L and a second opening 204R. The button protrusion 203 is disposed on the outer surface of the button supporting shaft 20 and above the opening portion 204.

The receiving slot 202 is configured to receive a resilient piece 50. The elastic piece 50 has a fixing portion 501 and an elastic portion 502 connected to the fixing portion 501. In the embodiment, the fixing portion 501 is engaged with the accommodating groove 202 to fix the elastic piece 50 in the accommodating groove 202. The elastic portion 502 includes a first elastic arm connected to the fixing portion 501. 502L and second elastic arm 502R. When the elastic piece 50 is fixed to the accommodating groove 202, the first elastic arm 502L partially passes through the first opening 204L; the second elastic arm 502R partially passes through the second opening 204R. In this embodiment, only the implementation of the elastic portion 502 having two elastic arms is proposed. Mode, but in actual application, the number of elastic arms can be adjusted according to the need of pressing the button, and the button can be adjusted. For example, if a light touch is required, a spring arm can be set; if it is heavy Two or more elastic arms can be provided without pressing the hand, and are not limited to the embodiment proposed by the present invention. In addition, the elastic restoring force of the elastic piece 50 can be adjusted by the replacement of the material, thereby adjusting the hand feeling of the button pressing.

Referring to FIG. 2A, the button seat 30 has a button slot 31. The button slot 31 is configured to receive the button support shaft 20, and the engaging rib 205 of the button support shaft 20 is engaged with the inner surface of the button slot 31, so that the button support shaft 20 can be vertically displaced to the button slot. Among the 31. Further, the inner surface of the key groove 31 has a key stop block 311 corresponding to the button bump 203 and a push portion 312 corresponding to the elastic portion 502. In this embodiment, the button stop block 311 is located below the pushing portion 312, and the pushing portion 312 has a first pushing protrusion 312L corresponding to the first elastic arm 502L and a second arm 502R corresponding to the first arm 502L. The second pushes against the bump 312R. When the button structure 1 is assembled, the elastic piece 50 and the button support shaft 20 can be separately formed into individual key shaft semi-finished products, and then the integral assembly with the button base 30 can be performed, thereby simplifying the assembly process. On the other hand, when the button structure 1 needs to be assembled upside down, for example, when the switch module 40 is installed, since the button support shaft 20 is engaged with the key groove 31 by the engaging rib 205, the inverted position can be avoided. The button support shaft 20 is dropped from the button holder 30, and the efficiency of assembling the button structure 1 can be further improved.

Referring to FIG. 2B , the first pushing protrusion 312L and the second pushing protrusion 312R of the pushing portion 312 each have an inclined surface S. Thus, when the button supporting shaft 20 moves downward and drives the elastic piece 50 to be displaced, the pushing The abutting portion 312 is pushed against the elastic portion 502, so that the first elastic arm 502L and the second elastic arm 502R respectively abut against the inclined surface S of the first pushing protrusion 312L and the second pushing protrusion 312R, so that the first elastic arm 502L The second elastic arm 502R moves along the inclined surface S, and the elastic portion 502 is compressed to be elastically deformed.

The switch module 40 is disposed at the bottom of the button base 30. The switch module 40 includes a thin film circuit board 41 and an elastic body 42 disposed on the thin film circuit board 41, and the elastic body 42 is located in the other end of the key groove 31 with respect to the keycap 10. In the present embodiment, the elastic body 42 has a hemispherical shape and is made of elastic rubber. When the external force presses the keycap 10 to press the key support shaft 20 against the elastic body 42, the elastic body 42 is elastically deformed to trigger a switch on the thin film circuit board 41 (not shown), so that the switch module 40 generates corresponding The button signal; when the external force is released, the elastic body 42 elastically recovers and provides an elastic restoring force to the button support shaft 20, and the button support shaft 20 is reset.

Please refer to FIG. 3. FIG. 3 is a schematic diagram of the operation of the button structure of the present invention. In (i) of FIG. 3, the keycap 10 is in the initial position, and the first elastic arm 502L of the elastic portion 502 bears against the first pushing protrusion 312L; the key support shaft 20 bears against the elastic portion 502. Both the dome-shaped elastic body 42 and the elastic portion 502 simultaneously give a sufficient upward supporting force to uniformly and stably support the key support shaft 20. Next, referring to (ii) of FIG. 3, when the external force F presses the keycap 10 to move the button support shaft 20 downward and the elastic piece 50 is displaced, the first pushing protrusion 312L of the pushing portion 312 pushes against the elastic portion. The first elastic arm 502L of the first spring arm 502L abuts against the inclined surface S of the first pushing protrusion 312L and moves along the inclined surface S, so that the first elastic arm 502L is compressed to be elastically deformed. In turn, a sense of passage of the button press is generated. Then, referring to (iii) of FIG. 3, the button protrusion 203 is then pressed against the button stop block 311 to stop the button support shaft 20 from being displaced downward, and the first elastic arm 502L of the elastic portion 50 is crossed. The first pushing arm 312L of the pushing portion 312 is elastically restored, and the first elastic arm 502L of the elastic portion 50 is oscillated and hits the inner surface of the key groove 31 to generate a first sound. In addition, the elastic body 42 is simultaneously The switch on the thin film circuit board 41 (not shown) is triggered by the elastic deformation, so that the switch module 40 generates corresponding button signals. Then, referring to (iv) of FIG. 3, when the external force F stops pressing the keycap 10, the elastic body 42 elastically recovers and provides sufficient elastic restoring force to the button support shaft 20, and the button supports the shaft 20 during the reset process. The first elastic arm 502L that drives the elastic portion 50 hits and passes over the first pushing protrusion 312L of the pushing portion 312 to generate a second sound. Finally, the keycap 10 is returned to the initial position (as shown in (v) of FIG. 3). It should be further noted that the second elastic arm 502R of the elastic portion 502 also performs the same operation at the same time, and details are not described herein.

Compared with the prior art, the button structure provided by the invention has a small number of parts and a simple structure, which makes it easy to assemble. On the other hand, since the case supports the button support shaft with the hemispherical shape of the elastic body instead of the spring structure of the conventional mechanical keyboard, the backlight light passing through the button structure is not blocked by the spring structure, so that the word key The effect of illuminating is more uniform. In addition, the shrapnel disposed on the inner surface of the button support shaft and the pushing portion on the inner surface of the button base can be used to form a paragraph feeling when the button is pressed and a knocking sound similar to a mechanical keyboard; therefore, the present invention is Creation of industrial value.

The present invention is intended to be modified by those skilled in the art, and is not intended to be limited by the scope of the appended claims.

Claims (12)

A button structure includes: a button support shaft, comprising: a receiving slot; and an opening portion communicating with the receiving slot; a resilient piece disposed in the receiving slot, the elastic piece having a resilient portion and a portion The button seat includes: a button slot, the button support shaft is vertically displaceably disposed in the button slot; and a pushing portion disposed on the inner surface of the button slot, and the button The pushing portion corresponds to the elastic portion; and a key cap is coupled to the button supporting shaft; wherein, when an external force presses the key cap, the pushing portion pushes against the elastic portion to elastically deform, and then the elastic portion Retrieving elastically over the pushing portion, the elastic portion swinging and striking the inner surface of the key groove to generate sound; wherein the outer surface of the button supporting shaft has a button protrusion, and the inner surface of the button groove has an inner surface corresponding thereto a button stop block of the button bump, the button bump is used to abut against the button stop block, so that the button support shaft stops downward displacement. The button structure of claim 1, further comprising a switch module, the switch module is disposed at a bottom of the button base, the switch module includes a thin film circuit board and is disposed on the thin film circuit board An elastomer on the upper side, and the elastic body is located in the key groove. The button structure of claim 2, wherein when the external force presses the keycap, the button support shaft presses the elastic body to cause the switch module to generate a corresponding button signal. The button structure of claim 2, wherein when the external force is released, the elastic body elastically recovers and provides an elastic restoring force to the button support shaft, and the elastic portion impacts and passes over the button support shaft reset process Push the part to make a sound. The button structure of claim 1, wherein the opening portion comprises a first opening and a second opening. The button structure of claim 5, wherein the elastic portion includes a first elastic arm and a second elastic arm, the first elastic arm portion passes through the first opening, and the second elastic arm portion is worn. The second opening is exited. The button structure of claim 6, wherein the pushing portion comprises a first pushing protrusion and a second pushing protrusion, and the first pushing protrusion and the second pushing convex The blocks each have an inclined surface. The button structure of claim 7, wherein when the external force presses the keycap, the first elastic arm and the second elastic arm respectively abut the first pushing protrusion and the second pushing The inclined surface of the bump moves along the inclined surface to be elastically deformed. The button structure of claim 6, wherein the elastic piece has a fixing member, and the fixing member is connected to the first elastic arm and the second elastic arm, and the fixing member is disposed in the receiving groove. Fix the shrapnel in the middle. The button structure of claim 1, wherein the button bump is located above the opening. The button structure of claim 1, wherein the button stop is located below the pushing portion. The button structure of claim 1, wherein the key cap has a first engaging structure, the button supporting shaft has a second engaging structure, the first engaging structure and the second engaging structure The latches are engaged such that the keycap is detachably coupled to the button support shaft.