CN101996801A - Luminous key, luminous key switch assembly and key structure with detachable key cap - Google Patents

Abstract

The invention discloses a luminous key, a luminous key switch assembly and a key structure capable of quickly disassembling and assembling a key cap. The light-emitting key is applied to a light-emitting key switch assembly and comprises a light guide body and a key cap. The light guide body is combined in the key cap, touches the switch element through a pressing bump, and receives light from a light source through a light receiving structure, so that the light is guided to leave the top surface of the key cap from a light emitting structure. The edge of the key cap extends to form two connecting pieces which are clamped by a clamping element on the inner surface of a shell, so that the key cap is supported in a key hole of the shell, and the tool-free rapid assembly of the key cap is achieved.

Description

Key structure of luminous key, luminous key switch assembly and detachable key cap

technical field

The invention relates to the lighting of keys, in particular to a luminous key structure, a luminous key switch assembly and a key structure with fast detachable key caps.

Background technique

Button symbols are usually provided on the surface of the button caps for users to quickly identify the functions corresponding to the buttons. However, when operating an electronic device in a place with poor lighting, the user often cannot quickly identify the position of the key and the key mark on the key, and thus cannot operate the key correctly. In order to solve the above problems, various lighting structures are proposed in the prior art to illuminate the keys.

The light source that provides illumination directs the light to the center of the key cap to get the best lighting effect, but for the switch element touched by the key cap, the position of the switch element must also correspond to the center of the key cap in order to get a good triggering effect . In order to ensure that the switch element is triggered correctly, the position of the light source is usually not able to direct the light to the center of the key cap, and the device must add a light guide or a diffuser to change the direction of light travel, so as to ensure that the light emitted by the light source can be directed towards the top surface of the key cap. Position projection. For example, China Taiwan Publication No. I239543 Patent of Invention discloses a key light-emitting module, which is provided with a light source and a light-guiding key cap on a key substrate, and a diffusion sheet is disposed in the key cap. The key cap is covered on the light source so as to receive the light and make the light pass through the key cap for illuminating the surface of the key cap. The arrangement of the light guide element or the diffuser makes the assembly process of the key relatively complicated.

In addition, usually only the part where the key marks are placed on the top surface of the key cap can be light-transmitting, so that the key marks can be highlighted simultaneously when the key cap is illuminated. The key caps are usually made of transparent materials, and after spraying with opaque paint, the paint corresponding to the marked part of the key is removed. However, the additionally sprayed paint tends to fall off after the key cap is pressed and rubbed repeatedly, making the key markings blurred and difficult to identify.

Furthermore, the edges of the key caps are extended to form a pair of elastic connectors, and these elastic connectors are fixed on the inner side of the housing in a welding manner, so that the key caps are supported in a button hole of the housing, and the elastic connectors The elastic force provided enables the button cap to return to its original position after being pressed. The disadvantage of the welding method is that it is not conducive to re-work or replacement of the key cap, and a welding tool must be used when installing the key cap. If the keycaps are found to be damaged or of poor quality outside the factory, often the keycaps cannot be replaced individually, but the entire housing must be replaced. The key cap is often the most easily damaged or poor quality component, so the method of fixing the key cap by welding increases the cost of subsequent maintenance or quality control.

Contents of the invention

In the prior art, in order to effectively illuminate the keycaps, it is often necessary to increase the arrangement of light guides or diffusion sheets, which makes the assembly process of the keys relatively complicated. At the same time, since the lighting source cannot directly shine on the center of the key cap, the lighting effect is relatively poor. At the same time, if the key caps with partial light-transmitting areas are produced by spraying, the coating on the surface is easily worn off, making the key marks blurred and difficult to identify.

In order to solve the above problems, the object of the present invention is to provide a luminous key, which has a simple structure, good lighting effect, and no problem of blurred key markings due to wear and tear.

One or more embodiments of the present invention provide a luminous key, which includes a light guide and a key cap. The light guide body is made of light-transmitting material, and the light guide body has a top surface and a bottom surface. A light emitting structure is formed on the top surface, and a protruding pressing bump and a protruding light receiving structure are formed on the bottom surface. The light-receiving structure has a light-receiving surface for receiving a light so that the light is guided to leave the light-emitting structure, and there is a distance between the end of the pressing protrusion and the light-receiving surface. The keycap has a pressing surface and an accommodating space, the pressing surface has at least one perforation to match the light emitting structure of the light guide, and the keycap covers the light guide so that the light guide is located in the accommodating space and combined with the keycap , and the light-emitting structure is exposed on the pressing surface through the perforation.

One or more embodiments of the present invention further provide a light-emitting key switch assembly, including a substrate, a light source, a switch element, and a light-emitting key. The light source is arranged on the substrate and is used for projecting a light. The switch element is arranged on the substrate for being touched to generate a switch signal, and there is a distance between the light source and the switch element. The luminous key is arranged on the substrate and keeps a distance from the substrate. The luminous key is used to be reciprocally moved along a moving axis to approach or move away from the substrate. The switch element is located on the moving axis, and the pressing projection of the light-emitting button is located on the moving axis to touch the switching element, and the light-receiving structure receives light from the light source so that the light is guided to leave from the light-emitting structure.

An independent light-receiving structure and a pressing bump are formed on the light guide body of the present invention, which can retain the pressing effect of the pressing bump on the switch element. At the same time, after receiving the light, the light guide directly guides the light to the light output structure, and leaves through the perforation of the key cap, thereby improving the lighting effect on the surface of the key cap. In addition, the perforated and light-emitting structures do not have the problem of being worn off like pigments.

In the prior art, the production process of welding and fixing the key cap is also not conducive to subsequent rework or replacement of the key cap.

In order to solve the above problems, another object of the present invention is to provide a key structure that can quickly disassemble the key cap, which can be quickly assembled without tools, and is conducive to rework or replacement of the key cap.

One or more embodiments of the present invention provide a key structure with a quick detachable key cap, which includes a housing, two clamping elements, and a key cap. The casing has a button hole, which communicates with an outer surface and an inner surface of the casing. The holding element is arranged on the inner surface of the casing, and the button hole is located between the two holding elements. The key cap is located in the key hole, and the key cap has a pressing surface, and the pressing surface is exposed on the outer surface of the casing through the key hole. The connecting parts are connected to the edge of the key cap, and extend in opposite directions along the radial direction of the key cap, and are respectively used for being clamped by each clamping element to support the key cap in the key hole.

The clamping element fixes the connection in a clamping manner, so that no tools are required to install the connection. At the same time, the connecting piece can be disengaged from the clamping element to remove the key cap, which is beneficial to rework or replacement of the key cap.

In one or more embodiments of the present invention, each connecting piece includes an elastic connecting portion and a locking piece, the elastic connecting portion is connected to the edge of the key cap, and the locking piece is connected to the key cap through the elastic connecting portion. To be clamped by each clamping element.

At least one positioning column is disposed on the inner surface of the casing, and at least one locking piece has a positioning hole for the positioning column to pass through, so as to produce a fixing effect in the radial direction of the key cap.

In one or more embodiments of the present invention, each connecting piece includes an elastic connecting part and a collar, the elastic connecting part is connected to the edge of the key cap, and the collar is arranged at the end of the elastic connecting part for the inner surface of the housing One of the positioning posts passes through. Each clamping element has a clamping notch for clamping the elastic connection part.

In one or more embodiments of the present invention, each connecting piece includes an elastic connecting part and a collar, the elastic connecting part is connected to the edge of the key cap, and the collar is arranged at the end of the elastic connecting part for a positioning post through. Each clamping element has a certain hook and a supporting part respectively. The positioning hook is disposed on the inner surface of the housing, and the positioning hook has an upper clamping block for preventing the elastic connection part from being away from the housing. The supporting part is arranged on the inner surface of the housing, and the positioning column is arranged on the supporting part. The supporting part is used to support the collar to keep a distance between the collar and the inner surface of the housing, and is used to pass the upper clamping block and the supporting part. Grip connectors.

The clamping element fixes the connection in a clamping manner, so that no tools are required to install the connection. At the same time, the connecting piece can be disengaged from the clamping element to remove the key cap, which is beneficial to rework or replacement of the key cap.

Description of drawings

Fig. 1 is an exploded view of the luminous key switch assembly in the first embodiment of the present invention;

Fig. 2 is a perspective view of the luminous key switch assembly in the first embodiment of the present invention;

3 is a perspective view of a light guide in the first embodiment of the present invention;

Fig. 4 is a perspective view of a key cap in the first embodiment of the present invention;

Fig. 5 is a cross-sectional exploded view of the light guide body and the key cap in the first embodiment of the present invention;

6 is a cross-sectional view of a light guide, a key cap, a substrate, a switch element, and a light source in the first embodiment of the present invention;

Fig. 7 is a perspective view of a light-emitting button in the first embodiment of the present invention;

Fig. 8 is an exploded view of the key structure of the quick detachable key cap in the first embodiment of the present invention;

Fig. 9 is a perspective view of the key structure of the key cap that can be quickly disassembled and assembled in the first embodiment of the present invention;

Fig. 10 and Fig. 11 are cross-sectional views of the key structure of the quick detachable key cap in the first embodiment of the present invention;

Fig. 12 is a perspective view of a clamping element in a second embodiment of the present invention;

Fig. 13 is a perspective view of the clamping element in the second embodiment of the present invention, revealing that the clamping element clamps the latch piece;

Fig. 14 is a perspective view of a clamping element in a third embodiment of the present invention;

Fig. 15 is a perspective view of the clamping element in the third embodiment of the present invention, revealing that the clamping element clamps the latch piece;

Fig. 16 is a perspective view of a light-emitting button in the fourth embodiment of the present invention;

Fig. 17 is an exploded view of the key structure of the quick detachable key cap in the fourth embodiment of the present invention;

Fig. 18 is a perspective view of the key structure of the key cap that can be quickly disassembled and assembled in the fourth embodiment of the present invention;

Fig. 19 is an exploded view of the key structure of the quick detachable key cap in the fifth embodiment of the present invention;

20 is a cross-sectional view of a light guide, a key cap, a substrate, a switch element, and a light source in a sixth embodiment of the present invention.

Description of main component symbols

100 luminous buttons 110 light guide

111 top surface 112 bottom surface

113 Light-emitting structure 114 Press bump

115 Light receiving structure 115a Light receiving surface

120 key cap 121 pressing surface

122 Accommodating space 123 Perforation

124 Connecting piece 124a Elastic connecting part

124b card catch 124c positioning hole

130 Substrate 140 Light source

150 switch element 160 housing

161 key hole 162 outer surface

163 inner surface 170 clamping element

171 Clamping gap 172 Upper clamping block

173 Lower clamping block 180 Positioning column

224b card catch 270 clamping element

274 Positioning hook 274a Clamping block

274b inclined plane 275 support part

324b card tab 324c positioning hole

370 clamping element 374 positioning hook

374a clamping block 375 support part

380 Positioning column 400 Illuminated button

410 Light guide body 420 Key cap

424 Connecting piece 424a Elastic connecting part

424c Collar 460 Housing

461 key hole 470 clamping element

471 Clamping gap 480 Positioning post

520 key cap 524 connector

524a Elastic connection part 524c Collar

560 Shell 561 Button hole

570 clamping element 574 positioning hook

575 Support part 574a Upper clamping block

580 Positioning column 600 Illuminated button

610 Light guide body 612 Bottom surface

613 Light structure 614 Press bump

615 Light receiving structure 615a Light receiving surface

620 key cap 630 substrate

640 Light source 650 Switching element

Y moving axis

Detailed ways

Please refer to FIG. 1 and FIG. 2 , which is a light-emitting key 100 disclosed in the first embodiment of the present invention, which includes a light guide 110 and a key cap 120 . The light guide body 110 and the button cap 120 are combined into one body, and receive a light to highlight the local pattern features by emitting light.

Referring to FIG. 1 and FIG. 3 , the light guide body 110 is made of a light-transmitting material, but is not limited to a colorless and transparent material. The material for making the light guide body 110 can be colorless and transparent material mixed with pigments, so that the material of the light guide body 110 can pass through the visible light of a specific color and present a specific color.

The light guide 110 has a top surface 111 and a bottom surface 112 . A light-emitting structure 113 is formed on the top surface 112 , and the cross-sectional shape of the light-emitting structure 113 can be in the shape of a button symbol, such as a switch symbol. 3, a protruding pressing bump 114 and a protruding light-receiving structure 115 are formed on the bottom surface 112 of the light guide 110, wherein the pressing bump 114 is approximately located at the center of the bottom surface 112, and the light-receiving structure 115 deviates from the center. The direction extends so that there is a distance between the end of the pressing protrusion 114 and the light-receiving structure 115 .

Referring to FIGS. 1 and 4 , the key cap 120 has a pressing surface 121 and an accommodating space 122 . The pressing surface 121 has one or more perforations 123 .

Referring to FIG. 5 , FIG. 6 , and FIG. 7 , the key cap 120 covers the top surface 111 of the light guide body 110 , so that the light guide body 110 is located in the accommodating space 122 and combined in the key cap 120 . The light emitting structure 113 of the light guide body 110 is exposed on the pressing surface 121 of the key cap 120 through the through hole 123 .

The pressing bump 114 and the light-receiving structure 115 respectively extend in different directions. Generally speaking, the light-emitting button 100 is used to be moved back and forth along a moving axis Y, the moving axis Y passes through the top surface 111 and the bottom surface 112 of the light guide body 110, and the pressing protrusion 114 protrudes along the moving axis Y. bottom surface 112 . The light-receiving structure 115 has at least one light-receiving surface 115a, and a distance is maintained between the end of the pressing protrusion 114 and the light-receiving surface 115a. The light receiving surface 115a is disposed away from the moving axis Y to ensure that the pressing protrusion 114 can be located on the moving axis Y.

Referring to FIG. 1 and FIG. 6 , the first embodiment of the present invention further proposes a light-emitting key switch assembly, including a substrate 130 , a light source 140 , a switch element 150 , and the aforementioned light-emitting key 100 .

The substrate 130 can be a printed circuit board or a general board with wires, which is used to carry the light source 140 and the switch element 150 and provide power and signal transmission.

The light source 140 and the switch element 150 are disposed on the substrate 130 . The light source 140 is used to project a light, and the switch element 150 is used to be touched to generate a switch signal. Meanwhile, there is a distance between the light source 140 and the switching element 150 .

Referring to Fig. 1 and Fig. 6 again, the light-emitting button 100 is supported by other fixing mechanisms, so that the light-emitting button 100 is arranged on the substrate 130, and keeps a distance from the substrate 130, so that the light source 140 and the switch element 150 are located on the light-emitting button 100 and between the substrate 130 . At the same time, maintaining the distance is to keep the switch element 150 from being touched by the light-emitting key 100 when the light-emitting key 100 is not pressed. As mentioned above, the light-emitting key 100 is used to be reciprocally moved on the moving axis Y to approach or move away from the substrate 130 . Wherein, the moving axis Y is perpendicular to the surface of the substrate 130 , and the switching element 150 is located on the moving axis Y. When the light-emitting key 100 is pressed and moves toward the substrate 130 , the pressing protrusion 114 of the light guide 110 touches the switch element 150 to make the switch element 150 generate the switch signal.

The light source 140 can be an element such as a light emitting diode or a small light bulb, and the light receiving surface 115 a of the light receiving structure 115 of the light guide 110 faces the light source 140 for receiving light projected by the light source 140 . The light enters the light guide 110 through the light receiving surface 115a, and undergoes repeated refraction and reflection. The light is guided by the light guide body 110 and leaves the light guide body 110 through the light exit structure 113 . The light-receiving structure 113 is exposed on the pressing surface 121 of the keycap 120 , and the light can make the light-receiving structure 113 emit light, so that the pressing surface 121 of the keycap 120 is at least partially illuminated and presents a key symbol.

Although the accompanying drawings and the foregoing description divide the light guide body 110 and the key cap 120 into two components, in essence, the light guide body 110 and the key cap composed of different materials can be made by injection molding techniques such as secondary overmolding. 120 is directly integrally formed through a single forming step, without going through an assembly procedure.

The key symbols are presented by the perforation 123 and the light-emitting structure 113 , and there is no problem of paint being worn off, so the key symbols will not be difficult to recognize due to the wear of the luminous key 100 . In addition, the illuminating light can be directly guided to the light emitting structure 113 and emitted through the through hole 123 , so a relatively better illuminating effect can also be obtained.

Referring to Figure 1, Figure 2, Figure 8, and Figure 9, in order to quickly fix the key structure, the first embodiment of the present invention further proposes a key structure that can quickly disassemble the key cap, including a housing 160, two A clamping element 170 , a positioning post 180 , and a luminous key 100 . In order to simplify the drawings, the light-emitting key 100 in FIGS. 8 and 9 only shows the key cap 120 .

The housing 160 has a button hole 161 communicating with an outer surface 162 and an inner surface 163 of the housing 160 . Two clamping elements 170 are disposed on the inner surface 163 of the housing 160 , and the button hole 161 is located between the two clamping elements 170 .

Referring to FIG. 10 and FIG. 11 , each clamping element 170 is a columnar structure and is disposed on the inner surface 163 of the casing 160 . Each clamping element 170 has a clamping notch 171 respectively, and the clamping notch 171 of the two clamping elements 170 faces the other clamping notch 171 . Each clamping element 170 further includes an upper clamping block 172 and a lower clamping block 173 disposed on the side of the clamping element 170 so that the clamping notch 171 is formed between the upper clamping block 172 and the lower clamping block 173 . The outer portion of the upper clamping block 172 has a slope for guiding an object to slide into the clamping notch 171 . The positioning column 180 is disposed on the inner surface 163 of the casing 160 and is located between one of the clamping elements 170 and the button hole 161 .

The light-emitting key 100 further includes two connecting parts 124, which are connected to the edge of the key cap 120, and extend in opposite directions along the radial direction of the key cap 120, and are respectively clamped by the clamping elements 170 to support the key cap 120. in the button hole 161. Each connecting piece 124 includes an elastic connecting portion 124a and a locking piece 124b. The elastic connecting portions 124 a of the two connecting parts 124 are integrally connected to the edge of the key cap 120 , and extend in opposite directions along the radial direction of the key cap 120 . The elastic connecting portion 124a can be a single elongated sheet structure, a combination of multiple single elongated sheet structures, or a meandering elongated sheet structure. The latching pieces 124b are connected to the key cap 120 through the elastic connecting portion 124a to be clamped by each of the clamping elements 170, and at least one latching piece 124b has a positioning hole 124c.

Referring to FIG. 8 , FIG. 9 , FIG. 10 , and FIG. 11 , the key cap 120 is located in the key hole 161 , so that the pressing surface 121 of the key cap 120 and the light-emitting structure 115 of the light guide 110 are exposed to the casing through the key hole 161 The outer surface 162 of 160. At the same time, the key hole 161 can limit the displacement of the key cap 120 in the radial direction, so as to prevent the key cap 120 from shaking excessively in the radial direction. At the same time, it is prevented that the engaging piece 124b is driven radially by the key cap 120 and falls off from the clamping notch 171 of the clamping element 170 . The positioning column 180 passes through the positioning hole 124c of one of the locking pieces 124b, and is used to further limit the radial displacement of the key cap 120 and directly prevent the lateral movement of the locking piece 124b.

When fixing the locking piece 124b on the clamping notch 171 , the edge of the locking piece 124b contacts the slope of the upper clamping block 172 first, and force the locking piece 124b to move toward the inner surface of the housing 160 . In this way, the locking piece 124b can force the two clamping elements 170 to deform outward, so that the edge of the locking piece 124b can slide into the clamping notch 171 . Fast assembly of the light-emitting button 100 on the casing 160 is achieved, and no tools are required during the assembly process.

The clamping element 170 fixes the latching piece 124 b in a clamping manner. If the luminous button 100 is to be removed, the luminous button 100 can be removed only by deforming the clamping element 170 outward. If the luminous key 100 is a damaged component that needs to be replaced and the housing 160 is not damaged and can still be used, the user can directly destroy the luminous key 100, for example, cut off the elastic connection part 124a, and quickly remove the damaged part. Illuminated key 100.

The elastic connecting portion 124a can be elastically deformed. When the pressing surface 121 of the key cap 120 is pressed to move the luminous key 100 toward the inside of the housing 160, the elastic connecting portion 124a is bent and stretched under force, thereby generating a pushing force of the luminous key. The key cap 120 of 100 faces the elastic force outside the casing 160 . When the pressing surface 121 stops being pressed, the elastic force can push the button cap 120 to return to its original position.

1 and 2, the substrate 130 of the light-emitting key switch assembly is arranged inside the housing 160, so that the light source 140 and the switch element 150 are located in the housing 160, thereby forming an electronic device housing 160 with a light-emitting key 100 structure.

With the light-emitting key 100 disclosed in the first embodiment of the present invention, the switch element 150 can still be located on the moving axis Y of the light-emitting key 100 to produce an optimal pressing effect on the switch element 150 . The light projected by the light source 140 can be guided by the light-receiving structure, reach the center of the key cap 120 and then be emitted through the perforation 123 to achieve the best luminous effect.

8 and 9, although the first embodiment of the present invention only discloses a positioning post 180, but in fact, because the two connecting parts 124 are mutually symmetrical structures, the engaging pieces 124b of the two connecting parts 124 can be Positioning holes 124c are provided. In this way, when installing the luminous key 100 , there is no need to consider the matching between the latching piece 124 b and the positioning post 180 , and any latching piece 124 b has a positioning hole 124 c for the positioning post 180 to pass through.

Referring to FIG. 12 and FIG. 13 , it is a clamping element 270 disclosed in the second embodiment of the present invention, which is applied in a key structure with quick detachable key caps. The clamping element 270 includes two positioning hooks 274 and a support portion 275, wherein the positioning hooks 274 are arranged in pairs on the inner surface of the housing, and the supporting portion 275 is arranged on the inner surface of the housing, and is located between the two positioning hooks. Tick between 274. The two positioning hooks 274 respectively have an upper clamping block 274a, and the outer portion of the upper clamping block 274a has a slope 274b for guiding an object to slide to push the positioning hooks 274 outward. The upper clamping blocks 274a of the two positioning hooks 274 are used to stop the upper surface of the engaging piece 224b, and the support portion 275 is supported on the lower surface of the engaging piece 224b, so as to clamp and fix the engaging piece 224b.

The supporting part is not limited to a block structure, and can also be a cylinder, and the positioning post can be integrally formed on the supporting part.

Referring to FIG. 14 and FIG. 15 , it is a clamping element 370 disclosed in the third embodiment of the present invention, which is applied in a key structure with quick detachable key caps. The clamping element 370 includes two positioning hooks 374 and a support portion 375, wherein the positioning hooks 374 are arranged in pairs on the inner surface of the housing, and the supporting portion 375 is arranged on the inner surface of the housing, and is located between the two positioning hooks. Tick between 374. The support portion 375 is a cylinder, and its outer diameter is larger than the inner diameter of the positioning hole 324c of the engaging piece 324b. The positioning post 380 is integrally formed on the top surface of the supporting portion 375 . The upper clamping blocks 374a of the two positioning hooks 374 stop against the upper surface of the engaging piece 324b, and the top of the supporting portion 375 is supported on the lower surface of the engaging piece 324b, thereby clamping the engaging piece 324b. At the same time, the positioning column 380 located at the top of the support portion 375 passes through the positioning hole 324c to further limit the radial displacement of the keycap 3.20. Since the outer diameter of the supporting portion 375 is larger than the inner diameter of the positioning hole 324c, the supporting portion 375 can be prevented from passing through the positioning hole 324c to support the engaging piece 324b.

Referring to Fig. 16, Fig. 17, and Fig. 18, it is a button structure of a quick detachable button cap disclosed in the fourth embodiment of the present invention, which includes a housing 460, two clamping elements 470, two The positioning post 480 , a luminous button 400 , and two connecting pieces 424 . The luminous key 400 includes a light guide body 410 , a key cap 420 , and two connecting parts 424 . The light guide body 410 and the key cap 420 are substantially the same as those of the first embodiment, and the structure of the connecting member 424 is further simplified. The connecting member 424 includes an elastic connecting portion 424a and a collar 424c. The elastic connecting portion 424 a is integrally connected to the edge of the keycap 420 , and the elastic connecting portions 424 a of the two connecting parts 424 extend in opposite directions along the radial direction of the keycap 420 . The elastic connecting portion 424a can be a single elongated sheet structure, a combination of multiple single elongated sheet structures, or a meandering elongated sheet structure. The collar 424c is disposed at the end of the elastic connecting portion 424a.

Each clamping element 470 is substantially the same as that of the first embodiment, and each has a clamping notch 471 for clamping the elastic connecting portion 424 a and supporting the key cap 420 in the key hole 461 . At the same time, the positioning post 480 passes through the collar 424c to further limit the displacement of the keycap 420 in the radial direction.

Referring to Fig. 19, it is a key structure of a quick detachable key cap disclosed in the fifth embodiment of the present invention, which includes a housing 560, two clamping elements 570, two positioning columns 580, and a luminous key , and two connectors 524 . The structure of the light-emitting button and the connecting member 524 is substantially the same as that of the fourth embodiment, and will not be repeated here.

Each clamping element 570 respectively includes a positioning hook 574 and a supporting portion 575 . The support portion 575 is a cylinder, and its outer diameter is larger than the inner diameter of the collar 524c. The positioning post 580 is integrally formed on the supporting portion 575 . The upper clamping blocks 574a of the two positioning hooks 574 are used to stop the elastic connecting part 524a away from the housing 560, and the supporting part 575 is used to support the collar 524c, thereby clamping the connecting piece 524 to support the key cap 520 on the housing. The button hole of body 560. At the same time, the positioning column 580 at the top of the support portion 575 passes through the collar 524c to further limit the radial displacement of the key cap 520 .

Please refer to FIG. 20 , which is a light-emitting key switch assembly disclosed in the sixth embodiment of the present invention, including a light-emitting key 600 , a substrate 630 , a light source 640 , and a switch element 650 .

The luminous key 600 includes a light guide 610 and a key cap 620 . In the sixth embodiment, the bottom surface 612 of the light guide 610 is a concave plane, and the light receiving structure 615 protrudes from the center of the bottom surface 612 and extends in a direction away from the moving axis Y, so that the light receiving surface 615a is far away from the moving axis Y. Move axis Y. The pressing protrusion 614 is formed on the light receiving structure 615 and extends along the moving axis Y, so that there is a distance between the end of the pressing protrusion 614 and the light receiving surface 615a.

The concave bottom surface 612 makes the light guide body 610 present a thin shell structure, which is used to reduce the materials required for manufacturing the light guide body 610 . The light-receiving structure extends from the center of the bottom surface, and can still guide light directly to the top surface of the light guide 610 , while the light-emitting structure 613 leaves the light guide 610 to maintain the light guide efficiency of the light guide 610 . The pressing protrusion 614 is still located on the moving axis Y, so a good pressing effect can still be maintained.

Claims (34)

1. luminous button comprises:

Light conductor, made by light transmissive material, this light conductor has an end face and a bottom surface, form a light emitting structures on this end face, form an outstanding projection and the outstanding photo structure that is subjected to pushed on this bottom surface, this is subjected to photo structure to have a sensitive surface, in order to receive a light, light is guided and certainly this light emitting structures leave, and this is pushed between the end of projection and this sensitive surface and has a spacing distance; And

Button cap, have a press surface and an accommodation space, this press surface has at least one perforation, the light emitting structures of mating this light conductor, and this button cap is covered in light conductor, make this light conductor be positioned at this accommodation space and be incorporated into this button cap, and this light emitting structures is by this perforation, and expose to this press surface.

2. luminous button as claimed in claim 1, wherein the section kenel of this light emitting structures is the kenel of key symbols.

3. luminous button as claimed in claim 1, wherein this bottom surface is the plane that an indent is provided with.

4. luminous button as claimed in claim 1, wherein this is pushed projection and is formed at this and is subjected on the photo structure.

5. luminous button as claimed in claim 1 wherein also comprises two connectors, is connected in the edge of this button cap, and radially extending in the opposite direction respectively along this button cap.

6. luminous button as claimed in claim 5, wherein respectively this connector comprises an elastic joint part and a drawing piece respectively, and this elastic joint part is connected in the edge of this button cap, and this drawing piece is connected in this button cap by this elastic joint part.

7. luminous button as claimed in claim 6, wherein at least one drawing piece has a location hole.

8. luminous button as claimed in claim 5, wherein respectively this connector comprises an elastic joint part and a collar, and this elastic joint part is connected in the edge of this button cap, and this collar is arranged at the end of this elastic joint part.

9. luminous button switch assembly comprises:

Substrate;

Light source is arranged at this substrate, in order to throw a light;

Switch element is arranged at this substrate, in order to being touched producing a switching signal, and has a spacing distance between this light source and this switch element; And

Luminous button is used to a mobile axis and reciprocally is moved, with near or away from this substrate; This switch element is positioned at this mobile axis; And this luminous button comprises:

Light conductor, made by light transmissive material, this light conductor has an end face and a bottom surface, form a light emitting structures on this end face, form an outstanding projection and the outstanding photo structure that is subjected to pushed on this bottom surface, this is pushed projection and is positioned at this mobile axis, in order to touch this switch element, and this is subjected to photo structure to have a sensitive surface, receives light in order to this light source certainly, light is guided and certainly this light emitting structures leave; And

Button cap has a press surface, and this press surface has at least one perforation, mates the light emitting structures of this light conductor, and this button cap is covered in light conductor, make this light conductor be incorporated into this button cap, and this light emitting structures exposes to this press surface by this perforation.

10. luminous button switch assembly as claimed in claim 9, wherein this is pushed between the end of projection and this sensitive surface and has a spacing distance.

11. luminous button switch assembly as claimed in claim 9, wherein the section kenel of this light emitting structures is the kenel of key symbols.

12. luminous button switch assembly as claimed in claim 9, wherein this bottom surface is the plane that an indent is provided with.

13. luminous button switch assembly as claimed in claim 9, wherein this is pushed projection and is formed at and is subjected on the photo structure.

14. luminous button switch assembly as claimed in claim 9 wherein also comprises two connectors, is connected in the edge of this button cap, and radially extending in the opposite direction respectively along this button cap.

15. luminous button switch assembly as claimed in claim 14, wherein respectively this connector comprises an elastic joint part and a drawing piece respectively, and this elastic joint part is connected in the edge of this button cap, and this drawing piece is connected in this button cap by this elastic joint part.

16. luminous button switch assembly as claimed in claim 15, wherein at least one drawing piece has a location hole.

17. luminous button switch assembly as claimed in claim 14, wherein respectively this connector comprises an elastic joint part and a collar, and this elastic joint part is connected in the edge of this button cap, and this collar is arranged at the end of elastic joint part.

18. the press-key structure of a fast demountable button cap comprises:

Housing has a key hole, is communicated with an outer surface and an inner surface of this housing;

Two clamping elements be arranged at the inner surface of this housing, and this key hole are between two clamping elements;

Button cap is positioned at this key hole, and this button cap has a press surface, and this press surface exposes to the outer surface of this housing by this key hole; And

Two connectors are connected in the edge of this button cap, and along radially the extending in the opposite direction respectively of this button cap, respectively by this clamping element clamping respectively, and support this button cap in this key hole.

19. the press-key structure of fast demountable button cap as claimed in claim 18, wherein respectively this connector comprises an elastic joint part and a drawing piece respectively, this elastic joint part is connected in the edge of this button cap, and this drawing piece is connected in this button cap by this elastic joint part, in order to by this clamping element clamping respectively.

20. the press-key structure of fast demountable button cap as claimed in claim 19, wherein respectively this clamping element has a clamping breach respectively, and respectively the clamping breach of this clamping element is towards the clamping breach of another this clamping element, respectively in order to clamping this drawing piece respectively.

21. the press-key structure of fast demountable button cap as claimed in claim 20, wherein respectively this clamping element also comprises on one grip block and grip block once, be arranged at the side of this clamping element, and this clamping breach is formed on this between the grip block and this time grip block.

22. the press-key structure of fast demountable button cap as claimed in claim 21, the outside that wherein should go up grip block has an inclined-plane, slips into this clamping breach in order to guide corresponding drawing piece.

23. the press-key structure of fast demountable button cap as claimed in claim 19 also comprises at least one reference column, is arranged at the inner surface of this housing, and at least one drawing piece has a location hole, uses for this reference column and passes.

24. the press-key structure of fast demountable button cap as claimed in claim 19, wherein respectively this clamping element comprises an at least one location trip and a support portion, be arranged at the inner surface of this housing, this location trip is in order to the upper surface of block in this drawing piece, and this support portion is provided with the lower surface that is supported in this drawing piece.

25. the press-key structure of fast demountable button cap as claimed in claim 24, this location trip has grip block on, in order to the upper surface of block in this drawing piece.

26. the press-key structure of fast demountable button cap as claimed in claim 25, the outside that wherein should go up grip block has an inclined-plane.

27. the press-key structure of fast demountable button cap as claimed in claim 24 also comprises at least one reference column, is arranged at the end face of this support portion, and at least one drawing piece has a location hole, uses for this reference column and passes.

28. the press-key structure of fast demountable button cap as claimed in claim 18, wherein:

Respectively this connector comprises an elastic joint part and a collar, and this elastic joint part is connected in the edge of this button cap, and this collar is arranged at the end of elastic joint part, uses the reference column for this housing medial surface to pass; And

Respectively this clamping element has a clamping breach respectively, in order to this elastic joint part of clamping.

29. the press-key structure of fast demountable button cap as claimed in claim 18, wherein:

Respectively this connector comprises an elastic joint part and a collar, and this elastic joint part is connected in the edge of this button cap, and this collar is arranged at the end of this elastic joint part, uses for certain position post and passes; And

Respectively this clamping element has respectively:

The location trip is arranged at the inner surface of this housing, and should locatees trip, has grip block on, and this elastic joint part of block is away from this housing; And

The support portion is arranged at the inner surface of this housing, and this reference column is arranged at this support portion, and this support portion is in order to support this collar.

30. the press-key structure of fast demountable button cap as claimed in claim 18, this press-key structure also comprises:

Substrate is arranged at this enclosure interior;

Light source is arranged on this substrate, in order to throw this light to this sensitive surface; And

Switch element is arranged on this substrate, touches in order to be pushed protuberance by this.

31. the press-key structure of fast demountable button cap as claimed in claim 18, this press-key structure also comprises a light conductor, made by light transmissive material, and this light conductor has an end face and a bottom surface, form a light emitting structures on this end face, form an outstanding projection and the outstanding photo structure that is subjected to pushed on this bottom surface;

This is subjected to photo structure to have a sensitive surface, in order to receive a light, light is guided and certainly this light emitting structures leave, and this is pushed between the end of projection and this sensitive surface and has a spacing distance; And

This light conductor is incorporated in this button cap, and this light emitting structures is passed this press surface and exposed to this press surface.

32. the press-key structure of fast demountable button cap as claimed in claim 31, wherein the section kenel of this light emitting structures is the kenel of key symbols.

33. the press-key structure of fast demountable button cap as claimed in claim 31, wherein this bottom surface is the plane that an indent is provided with.

34. the press-key structure of fast demountable button cap as claimed in claim 31, wherein this is pushed projection and is formed at this and is subjected on the photo structure.

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