CN107305817A - Key structure - Google Patents

Abstract

The invention discloses a key structure, which comprises a base with a sliding groove, an upper cover, a trigger piece and a spring piece, wherein the spring piece can move in the sliding groove. The trigger piece is arranged between the base and the upper cover and is positioned on one side of the elastic piece. When the key structure is pressed, the trigger piece moves relative to the base to push the elastic sheet, and the pushed elastic sheet can move in the sliding groove due to the elasticity of the elastic sheet to impact the upper cover, so that the key structure can generate sound.

Description

key structure

technical field

The invention relates to a key structure, in particular to a mechanical key structure.

Background technique

Common computer peripheral input devices include a mouse, a keyboard, and a trackball. The keyboard can directly input text and symbols to the computer, so it is highly valued by users and input device manufacturers. Among them, the more common one is a keyboard that includes a scissor-type connecting element.

Next, the architecture of the key structure in the keyboard including the scissor-type connection elements is described. Please refer to FIG. 1 , which is a schematic cross-sectional side view of a conventional button structure. The existing button structure 1 includes a button cap 11, a scissors-type connecting element 12, an elastic rubber body 13, a membrane switch circuit 14, and a bottom plate 15, and the bottom plate 15 is used to carry the second key cap 11, the scissors-type connecting element 12, the elastic rubber body 13 and membrane switch circuit 14. Wherein the scissor-type connecting element 12 is used to connect the bottom plate 15 and the key cap 11 .

The membrane switch circuit 14 has a plurality of key contacts (not shown in the figure). The key contact outputs a corresponding key signal when triggered. The elastic rubber body 13 is arranged on the membrane switch circuit 14 and one elastic rubber body 13 corresponds to a button contact. When the elastic rubber body 13 is pressed, the elastic rubber body 13 deforms and touches the corresponding contact in the membrane switch circuit 14 The key contact generates a key signal.

The scissor-type connection element 12 is located between the bottom plate 15 and the keycap 11 and connects them respectively. The scissors connection element 12 includes a first frame 121 and a second frame 122 . A first end of the first frame 121 is connected to the keycap 11 , and a second end of the first frame 121 is connected to the bottom plate 15 . The elastic rubber body 13 is surrounded by the scissors connection element 12 . In addition, the first frame 121 includes a first key cap shaft 1211 and a first base shaft 1212 . The first frame 121 is connected to the keycap 11 through the first keycap shaft 1211 , and is connected to the bottom plate 15 through the first bottom plate shaft 1212 . The second frame 122 is combined with the first frame 121 , and the first end of the second frame 122 is connected to the base plate 15 , and the second end of the second frame 122 is connected to the keycap 11 . Wherein, the second frame 122 includes a second key cap shaft 1221 and a second bottom board shaft 1222 . The second frame 122 is connected to the keycap 11 through its second keycap axle 1221 , and is connected to the bottom plate 15 through the second bottom plate axle 1222 .

Next, the operation situation of the existing key structure 1 being pressed by the user will be described. In Fig. 1, when the user touches the key cap 11, the key cap 11 is forced to push against the scissors-type connecting element 12 to make it move, so the key cap 11 can move downward relative to the bottom plate 15 and press the corresponding elastic Rubber body13. At this time, the elastic rubber body 13 deforms and touches the membrane switch circuit 14 to trigger the key contacts of the membrane switch circuit 14 , so that the membrane switch circuit 14 outputs a corresponding key signal. And when the user stops pressing the keycap 11, the keycap 11 is no longer under force and stops touching the elastic rubber body 13, so that the elastic rubber body 13 returns to its original shape in response to its elasticity, and provides upward elastic restoring force at the same time. The cap 11 is thus pushed back to the position it was in before being pressed.

In response to the advancement of technology, a mechanical key structure has been launched on the market. Please refer to FIG. 2 , which is a structural exploded schematic view of the existing mechanical key structure. The existing mechanical button structure 2 includes a button cap (not shown in the figure), a base 21, an upper cover 22, a pushing member 23, a link member 24, a first elastic piece 25, a second elastic piece 26 and a circuit board (not shown In the figure), the upper cover 22 covers the base 21 , and the upper cover 22 has an upper cover opening 221 , and the linkage 24 is arranged at the center of the base 21 and can move up and down relative to the base 21 . The first elastic piece 25 is disposed on the base 21 and is close to the sidewall of the base 21 , and the second elastic piece 26 is disposed on the base 21 and located between the link 24 and the first elastic piece 25 . The pushing member 23 and the linking member 24 are jointly disposed on the base 21 , and the pushing member 23 passes through the opening 221 of the upper cover to be combined with the key cap. Wherein, the first elastic piece 25 and the second elastic piece 26 are respectively electrically connected to the circuit board.

In FIG. 2 , the linkage 24 has a protruding portion 241 , which is formed by extending the sidewall of the linkage 24 toward the first elastic piece 25 . On the other hand, the first elastic piece 25 includes a fixed part 251 and a spring part 252. The fixed part 251 is fixed on the base 21, and the spring part 252 is formed by extending the fixed part 251. The spring part 252 can be connected with the linkage The protruding portion 241 of 24 contacts and moves relative to the fixing portion 251 .

When the user presses the key cap, the key cap pushes the push member 23 downward, so that the linkage 24 connected to it moves downward. Move down along the elastic part 252 . During the rapid movement of the linking part 24 in response to the user's touch force, the linking part 24 will quickly pass through the spring part 252 and its protruding part 241 pushes against the spring part 252, so that the spring part 252 is opposite to the spring part 252. The fixing part 251 moves and hits the second elastic piece 26 , and the circuit board outputs a corresponding key signal through the contact between the first elastic piece 25 and the second elastic piece 26 . When the first elastic piece 25 is in contact with the second elastic piece 26 , there will be a sound, so as to provide the feedback feeling that the user has indeed pressed.

Because the mechanical key structure 2 will make a collision sound when the key cap is pressed, which can give a sense of feedback, so the mechanical key structure 2 is liked by some users. However, in the existing mechanical key structure 2, since the push piece 23 is connected with the linkage piece 24, the push piece 23 must be provided with a position-limiting structure that limits the movement of the linkage piece 24, which will cause the push piece 23 to be connected to the linkage piece 24. The thicknesses of the two linkage parts 24 cannot be reduced, so that the volume of the mechanical key structure 2 cannot be effectively reduced.

Therefore, there is a need for a button structure that can reduce the volume.

Contents of the invention

The object of the present invention is to provide a button structure that can reduce the volume.

In a preferred embodiment, the present invention provides a button structure, which includes a base, a top cover, a trigger piece and a resilient piece. The base has a sliding groove, and the upper cover covers the base, and the upper cover has an opening. The trigger is disposed on the base and passes through the opening for being pressed and moved relative to the base. The elastic piece is movably arranged in the sliding groove and is located on one side of the trigger piece; wherein, when the trigger piece is pressed and moves relative to the base, the trigger piece presses against the elastic piece, so that the elastic piece is in the move in the sliding groove and hit the upper cover to generate sound.

In short, the button structure of the present invention uses a trigger piece to replace the traditional push piece and linkage. Since the trigger piece is an integral structure, there is no need to set a limiting structure like the traditional push pieces and linkage pieces. , so the structural thickness of the trigger member is small, so that the internal space of the key structure of the present invention can be used more effectively, or the volume of the key structure can be reduced without using the internal space. In addition, in order to avoid the situation that the user presses the button cap lightly without making a sound, the elastic piece of the button structure of the present invention can move in the sliding groove and hit the upper cover. In this way, the situation where no sound is produced can be avoided. Alternatively, the button structure of the present invention can be provided with a recessed space on the upper cover, so that the elastic piece can slide in the recessed space to ensure that the sound can be made. Therefore, the key structure of the present invention allows the user to make a sound every time the key cap is pressed, so as to provide the user with a sense of feedback that the key is indeed pressed.

Description of drawings

FIG. 1 is a schematic side view of an existing button structure.

FIG. 2 is a schematic side view of a structural section of a conventional mechanical button structure.

FIG. 3 is a structural schematic diagram of the button structure in the first preferred embodiment of the present invention.

FIG. 4 is a structural exploded schematic view of the button structure in the first preferred embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view of a partial structure of the button structure in the first preferred embodiment of the present invention.

FIG. 6 is a schematic cross-sectional side view of a partial structure of the button structure in the first preferred embodiment of the present invention.

FIG. 7 is a schematic cross-sectional side view of a partial structure of the button structure of the present invention being pressed in the first preferred embodiment.

FIG. 8 is a structural exploded view of the button structure in the second preferred embodiment of the present invention.

FIG. 9 is a structural schematic diagram of another viewing angle of the button structure in the second preferred embodiment of the present invention.

FIG. 10 is a schematic cross-sectional view of a partial structure of the button structure of the present invention being pressed in the second preferred embodiment.

FIG. 11 is a schematic diagram of a partial structure of the button structure of the present invention being pressed from another perspective in the second preferred embodiment.

Wherein, the reference signs are explained as follows:

1 Button structure

11 Button caps

12 Scissor connection elements

121 First frame

1211 First button cap shaft post

1212 First base plate axle column

122 Second frame

1221 Second button cap shaft post

1222 Second base plate axle column

13 elastic rubber body

14 Membrane switch circuit

15 Bottom plate

2 mechanical button structure

21 base

22 Cover

23 push pieces

24 linkage

241 Protrusion

25 first shrapnel

251 fixed part

252 elastic part

26 second shrapnel

3 key structure

30 keycaps

31 base

311 sliding groove

312 storage slot

313 fixed post

32 Cover

321 opening

322 The first trigger shrapnel

323 Second trigger shrapnel

33 trigger

331 Ontology

332 The first connecting part

333 Second connecting part

334 push part

34 Shrapnel

341 shrapnel body

342 extension

343 First contact part

344 Second contact part

35 Elastic elements

36 circuit boards

4 key structure

41 base

411 sliding groove

412 storage slot

413 Fixing post

42 Cover

43 trigger

431 Ontology

432 The first connecting part

433 Second connecting part

434 push part

435 Light guide

44 Shrapnel

441 shrapnel body

442 extension

443 First Contact

444 Second contact part

45 Elastic elements

46 circuit boards

461 Circuit Board Cutouts

47 light emitter

48 light receiver

49 light emitting elements

B1 first beam

B2 second beam

G gap

H recessed space

detailed description

The invention provides a volume-reduced button structure to solve the problems in the prior art. Please refer to FIG. 3 and FIG. 4 at the same time. FIG. 3 is a structural schematic diagram of the keypad structure in the first preferred embodiment of the present invention, and FIG. 4 is a structural exploded schematic diagram of the keypad structure in the first preferred embodiment of the present invention. The key structure 3 includes a key cap 30 , a base 31 , an upper cover 32 , a trigger 33 , an elastic piece 34 , an elastic element 35 and a circuit board 36 . The base 31 includes a sliding groove 311 (please refer to FIG. 4 ), a receiving groove 312 and a fixing column 313. The receiving groove 312 is arranged at the center of the base 31 and can partially accommodate the trigger 33 therein, and the fixing column 313 is arranged in the receiving groove. 312 , which can fix the elastic element 35 on the base 31 . The sliding groove 311 is disposed on one side of the base 31 and its function is to accommodate the elastic piece 34 therein. The upper cover 32 covers the base 31 , and the upper cover 32 has an opening 321 corresponding to the trigger member 33 , so that the key cap 30 can be connected to the first end of the trigger member 33 . The trigger member 33 is disposed on the base 31 and connected to the key cap 30 through the opening 321 . The trigger member 33 is capable of moving relative to the base 31 when pressed by the user. The elastic piece 34 is movably disposed in the sliding groove 311 and is located on one side of the triggering member 33 . When the triggering member 33 moves, the elastic piece 34 will contact with the triggering member 33 . The circuit board 36 is disposed under the base 31 .

In FIG. 4 , the trigger member 33 includes a body 331 , a first connecting portion 332 , a second connecting portion 333 and a pushing portion 334 . The first connecting portion 332 is disposed on the first end of the body 331 and can be connected to the keycap 30 . The second connecting portion 333 is formed by extending outward from the main body 331 , and can extend into the receiving groove 312 so that the trigger member 33 is partially received in the receiving groove 312 . The pushing portion 334 is formed by extending from the main body 331 and is located on one side of the second connecting portion 333 , which can contact and abut against the elastic piece 34 when the trigger member 33 moves relative to the base 31 . On the other hand, the elastic element 35 is disposed on the fixing column 313 in the receiving groove 312 and contacts with the second connecting portion 333 of the triggering member 33 , and its function is to provide an elastic force to the triggering member 33 to move the triggering member 33 . In this preferred embodiment, the body 331 , the first connecting portion 332 , the second connecting portion 333 and the pushing portion 334 are integrally formed with the trigger member 33 and made of plastic material, and the elastic element 35 is a coil spring.

Next, the structure of the shrapnel will be described. Please refer to FIG. 4 and FIG. 5 at the same time. FIG. 5 is a schematic cross-sectional view of a partial structure of the button structure in the first preferred embodiment of the present invention. The elastic piece 34 includes an elastic piece body 341 , an extension portion 342 , a first contact portion 343 and a second contact portion 344 . The elastic piece body 341 is accommodated in the sliding groove 311 and can move in the sliding groove 311 , and the extension part 342 is formed by extending the elastic piece body 341 outward. The first contact portion 343 is disposed on one end of the extension portion 342 and can be in contact with the pushing portion 334 of the trigger member 33 . The second contact portion 344 is disposed on the extension portion 342 and can be in contact with the upper cover 32 . In this preferred embodiment, the elastic piece body 341 , the extension portion 342 , the first contact portion 343 and the second contact portion 344 are all made of metal material, and are integrally formed.

Please also refer to FIG. 6 , which is a schematic cross-sectional side view of a partial structure of the button structure in the first preferred embodiment of the present invention. Figure 6 shows the combined structure of the base 31, the upper cover 32, the trigger 33, the elastic piece 34, the elastic element 35 and the circuit board 36, wherein the upper cover 32 also includes a first trigger elastic piece 322 and a second trigger elastic piece 322 in addition to the opening 321. Trigger the elastic piece 323, the first trigger elastic piece 322 is arranged on the inner surface of the upper cover 32 and is electrically connected to the circuit board 36, and the second trigger elastic piece 323 is arranged on the inner surface of the upper cover 32 and uses the first trigger elastic piece 322 It is disposed in a separate manner. Similarly, the second trigger elastic piece 323 is also electrically connected to the circuit board 36 . In order to maintain the clarity of FIG. 6 , the structures in which the first trigger elastic piece 322 and the second trigger elastic piece 323 are respectively electrically connected to the circuit board 36 are not drawn in FIG. 6 . Wherein, how the first trigger elastic piece 322 and the second trigger elastic piece 323 are electrically connected to the circuit board 36 belongs to the scope of the prior art, so it will not be described in detail. Wherein, the upper cover 32 also includes a recessed space H, so that there is a larger vertical moving distance between the elastic piece 34 located in the sliding groove 311 and the upper cover 32 , so that the elastic piece 34 is easy to slide.

Next, the operation of the user pressing the button structure 3 of the present invention will be described. Please refer to FIG. 3, FIG. 6 and FIG. 7 at the same time. FIG. Side view schematic. When the user presses the keycap 30 , the keycap 30 is forced to push down against the triggering part 33 , so that the triggering part 33 moves downward with the keycap 30 relative to the base 31 . During the downward movement of the trigger member 33 , the second connecting portion 333 compresses the elastic element 35 , and the pushing portion 334 contacts the first contact portion 343 of the elastic piece 34 and the pushing portion 334 pushes against the first contact portion 343 . When the pushing part 334 passes the elastic piece 34, the pushing part 334 pushes against the first contact part 343, and the elastic piece 34 swings due to the first contact part 343 being pushed against and the elasticity of the elastic piece 34 itself, so that the elastic piece body 341 can The sliding groove 311 moves upwards, and the second contact portion 344 collides with the first trigger piece 322 and the second trigger piece 323 of the upper cover 32 to generate a sound, as shown in FIG. 7 .

It should be noted that since the recessed space H of the upper cover 32 can move the elastic piece 34 in the vertical direction, after the pushing portion 334 abuts against the first contact portion 343 , it can slide on the elastic piece 34 in response to the swing of the elastic piece 34 When the second contact portion 344 protrudes into the recessed space H to collide with the pushing portion 334 , a sound is generated. That is to say, when the pushing portion 334 passes through the elastic sheet 34 , the button structure 3 of the present invention will emit a secondary sound.

However, the button structure 3 of the present invention does not limit that the upper cover 32 must be provided with the recessed space H therein, and the button structure of the present invention can also adopt a design without a recessed space, but this design does not cause secondary noise. In detail, when the pushing part passes the shrapnel at a certain speed, the operation of the button structure of the present invention is the same as the above-mentioned operation, and a secondary sound is produced, wherein the sliding range of the shrapnel is relatively small. However, when the pushing part passes the elastic piece at a speed slower than a certain speed, the first contact part may not hit the pushing part, but the button structure of the present invention still makes at least one sound when the second contact part hits the upper cover.

Wherein, the above-mentioned certain speed means that the pushing part must provide a certain degree of pushing force to the shrapnel, and the pushing force can at least make the first contact part of the shrapnel swing. The minimum speed at which the first contact part can oscillate.

In Fig. 7, the second contact portion 344 is in contact with the first trigger elastic piece 322 and the second trigger elastic piece 323 respectively, and the first trigger elastic piece 322 and the second trigger elastic piece 323 are conducted through the second contact portion 344 of the elastic piece 34, so that The circuit board 36 outputs corresponding key signals.

When the user stops pressing the key cap 30, the key cap 30 is no longer under force and stops pressing the trigger member 33, so that the compressed elastic element 35 returns to its original shape due to its elasticity, and at the same time provides an upward elastic restoring force to the first The two connecting portions 333, so that the key cap 30 is pushed back to the position before being pressed. On the other hand, the elastic piece 34 also slides down in the sliding groove 311 to a position before the key cap 30 is pressed.

It should be noted that there is a gap g between the elastic piece 34 and the sliding groove 311, and the size of the gap g is calculated and designed: if the size of the gap g is too small, the elastic piece 34 will be stuck with the sliding groove 311 and cannot fit in the sliding groove. Slide up and down in 311. On the contrary, if the size of the gap g is too large, the elastic piece 34 will only shake back and forth in the sliding groove 311 and cannot slide up and down in the sliding groove 311 . For example, the size of the gap g can be designed to be about 0.05 mm to 0.5 mm, so that the elastic piece 34 can slide up and down in the sliding groove 311 .

In addition, the present invention also provides a second preferred embodiment with a method different from the above. Please refer to FIG. 8 and FIG. 9 at the same time. FIG. 8 is a schematic exploded view of the button structure of the present invention in the second preferred embodiment, and FIG. 9 is another view of the button structure of the present invention in the second preferred embodiment. Schematic. The button structure 4 includes a button cap (not shown in the figure), a base 41, an upper cover 42, a trigger 43, a shrapnel 44, an elastic element 45, a circuit board 46, a light emitter 47, a light receiver 48, and a light emitting element 49 ( Please refer to FIG. 10 ), the base 41 includes a sliding groove 411 (please refer to FIG. 10 ), a receiving groove 412 and a fixing column 413, and the elastic piece 44 includes an elastic piece body 441, an extension part 442, a first contact part 443 and a second contact part 444 . The structure and function of each element of the key structure 4 are substantially the same as those of the above-mentioned preferred embodiments, and the similarities will not be repeated here. There are two differences between the key structure 4 of this preferred embodiment and the aforementioned preferred embodiments. First, the triggering method of the key structure 4 is different, and part of the structure of the key structure 4 is also different. Second, the key structure 4 also includes a light emitting element 49 .

In FIG. 8 , the trigger 43 includes a body 431 , a first connecting portion 432 , a second connecting portion 433 , a pushing portion 434 and a light guide portion 435 , and the body 431 , the first connecting portion 432 , the second connecting portion 433 and the pushing portion The functions of the part 434 are the same as those of the above-mentioned preferred embodiments, and will not be repeated here. As for the light guide part 435 , it is formed by extending outward from the main body 431 and is located on the other side of the second connecting part 433 . In this preferred embodiment, the body 431, the first connecting part 432, the second connecting part 433, the pushing part 434 and the light guide part 435 are integrally formed with the trigger part 43, and the trigger part 43 is made of light-transmitting material .

On the other hand, FIG. 9 shows the structures of the circuit board 46 , the light transmitter 47 and the light receiver 48 . The circuit board 46 has a circuit board opening 461 , and the circuit board opening 461 passes through the circuit board 46 . The light emitter 47 is arranged on the lower surface of the circuit board 46, and its function is to generate the first light beam B1, and the light receiver 48 is arranged on the lower surface of the circuit board 46, and is located on one side of the light emitter 47, which can The circuit board 46 outputs a key signal by receiving the first light beam B1.

Next, the operation of the user pressing the key structure 4 of the present invention will be described. Please refer to FIGS. 8 to 11 at the same time. FIG. FIG. 11 is a schematic diagram of a partial structure of the button structure of the present invention being pressed from another perspective in the second preferred embodiment. When the user presses the keycap, the keycap is forced to push down against the trigger part 43 , so that the trigger part 43 moves downward relative to the base 41 along with the keycap. During the downward movement of the trigger member 43 , the second connecting portion 433 compresses the elastic element 45 , and the pushing portion 434 contacts the first contact portion 443 of the elastic piece 44 and the pushing portion 434 pushes against the first contact portion 443 . When the pushing part 434 passes through the elastic piece 44, the pushing part 434 pushes against the first contact part 443, and the elastic piece 44 swings due to the pushing of the first contact part 443 and the elasticity of the elastic piece 44 itself, so that the elastic piece body 441 can The sliding groove 412 moves upward, and the second contact portion 444 hits the upper cover 42 to generate a sound, as shown in FIG. 10 .

In FIG. 11 , in response to the downward movement of the pushing portion 434 , the light guiding portion 435 passes through the opening 461 of the circuit board and extends into the position between the light emitter 47 and the light receiver 48 . In this way, the first light beam B1 generated by the light transmitter 47 can be projected into the light guide part 435, and the light guide part 435 guides the first light beam B1 to project to the light receiver 48, in response to receiving the light of the first light beam B1 The operation of the receiver 48 makes the circuit board 46 output the corresponding key signal.

When the user stops pressing the key cap, the key cap is no longer under force and stops pressing the trigger 43, so that the compressed elastic element 45 returns to its original shape due to its elasticity, and at the same time provides an upward elastic restoring force to the second connection part 433, and the light guide part 435 is also reset along with the trigger part 43, and the key cap 4 is therefore pushed back to the position before it was pressed. On the other hand, the elastic piece 44 also slides down in the sliding groove 412 to the position before the keycap is pressed.

Please refer to FIG. 10 again. FIG. 10 shows that the light-emitting element 49 is arranged on the upper surface of the circuit board 46, which can generate the second beam B2, so that the second beam B2 is projected to the trigger 43 made of light-transmitting material, And make the key structure 4 have a light emitting function. In this preferred embodiment, the light emitting element 49 is a light emitting diode. It is for illustrative purposes only, and is not intended to be limiting. In another preferred embodiment, no light-emitting element may be provided in the key structure, so only the light guide part of the trigger part needs to be made of light guide material, and the other parts of the trigger part do not need to be made of light guide material. become.

It should be noted that the key structure 4 of this preferred embodiment triggers the circuit board 46 optically, therefore, the inner surface of the upper cover 42 does not need to have the first trigger elastic piece and the second trigger elastic piece therein.

According to the above, it can be seen that the button structure of the present invention uses the trigger piece to replace the traditional push piece and linkage. Since the trigger piece is an integral structure, there is no need to set a limiting structure like the traditional push pieces and linkage pieces. , so the structural thickness of the trigger member is small, so that the internal space of the key structure of the present invention can be used more effectively, or the volume of the key structure can be reduced without using the internal space. In addition, because in the existing key structure, when the user presses the key cap lightly, the moving speed of the linkage is relatively slow, so that the first shrapnel does not necessarily hit the linkage. At this time, the existing key structure will not emit sound. In order to avoid the situation that the user presses the button cap lightly without making a sound, the elastic piece of the button structure of the present invention can move in the sliding groove and hit the upper cover. In this way, the situation where no sound is produced can be avoided. Alternatively, the button structure of the present invention can be provided with a recessed space on the upper cover, so that the elastic piece can slide in the recessed space to ensure that the sound can be made. Therefore, the key structure of the present invention allows the user to make a sound every time the key cap is pressed, so as to provide the user with a sense of feedback that the key is indeed pressed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, all other equivalent changes or modifications that do not deviate from the principles disclosed in the present invention should be included in the scope of the present invention. within the scope of the claims.

Claims (12)

1. A button structure, comprising: a base with a sliding groove; an upper cover covering the base, and the upper cover has an opening; a trigger, disposed on the base and passing through the opening, for being pressed to move relative to the base; and An elastic piece is movably arranged in the sliding groove and is located on one side of the trigger piece; wherein, when the trigger piece is pressed and moves relative to the base, the trigger piece presses against the elastic piece, so that the elastic piece move in the sliding groove and hit the upper cover to generate sound. 2. The button structure as claimed in claim 1, wherein the base further comprises a receiving groove disposed at the center of the base for partially receiving the trigger member therein so that the trigger member can move relative to the base. 3. The button structure according to claim 2, wherein the trigger member comprises: a body; a first connecting portion, arranged on a first end of the body, for connecting with a key cap; a second connecting portion, formed by extending outward from the main body, for extending into the receiving groove; and A pushing part is formed by extending outward from the main body and is located on one side of the second connecting part, and is used for pushing against the elastic piece when the trigger part moves relative to the base. 4. The button structure according to claim 3, wherein the body, the first connecting portion, the second connecting portion, and the pushing portion are integrally formed with the trigger member. 5 . The button structure according to claim 2 , further comprising an elastic element, disposed in the receiving groove and in contact with the trigger member, for providing an elastic force to the trigger member to reset the trigger member. 6 . 6. The button structure according to claim 1, further comprising a circuit board disposed under the base; wherein, the upper cover further comprises: A first trigger elastic piece is arranged on an inner surface of the upper cover and is electrically connected to the circuit board; A second trigger elastic piece is arranged on the inner surface of the upper cover and is separated from the first trigger elastic piece, and the second trigger elastic piece is electrically connected to the circuit board; wherein when the elastic piece is connected to the first trigger elastic piece and the When the second trigger elastic piece contacts, the first trigger elastic piece and the second trigger elastic piece are conducted through the elastic piece, so that the circuit board outputs a button signal. 7. The button structure according to claim 1, wherein the elastic piece comprises: A shrapnel body is accommodated in the sliding groove and can move in the sliding groove; an extension part formed by extending outward from the shrapnel body; A first contact part is arranged on one end of the extension part for contacting with the trigger member; and a second contact part is arranged on the extension part for contact with the upper cover; wherein, when the trigger When the piece abuts against the first contact part, the elastic piece body moves in the receiving groove, and the second contact part hits the upper cover to generate a sound. 8. The button structure according to claim 1, further comprising: A circuit board has a circuit board opening, and the circuit board opening penetrates the circuit board; a light emitter, arranged on the lower surface of the circuit board, for generating a light beam; and A light receiver is arranged on the lower surface of the circuit board and located at one side of the light emitter, and is used for receiving the light beam to make the circuit board output a key signal. 9. The key structure according to claim 8, wherein the trigger member comprises: a body; a first connecting portion, arranged on a first end of the body, for connecting with a key cap; a second connecting portion, formed by extending outward from the main body, for extending into the receiving groove; a pushing part is formed by extending outward from the body, and is located on one side of the second connecting part, and is used for pushing against the elastic piece when the trigger part moves relative to the base; and A light guide part is formed by extending outward from the body, and is located on the other side of the second connecting part, and is used for protruding into the light emitter and the light receiver when the trigger part moves relative to the base space for the beam to pass through. 10. The button structure according to claim 9, wherein the body, the first connecting portion, the second connecting portion, the pushing portion and the light guiding portion are integrally formed with the trigger, and the trigger is transparent made of optical materials. 11. The button structure as claimed in claim 1, wherein there is a gap between the elastic piece and the sliding groove, and the gap is about 0.05mm-0.5mm. 12. The button structure as claimed in claim 1, wherein the upper cover further comprises a recessed space for the elastic piece located in the sliding groove to slide and enter therein.