CN201780919U - Key and keyboard - Google Patents

Abstract

The utility model relates to a button and a keyboard. The button includes a keycap, a bottom plate, a circuit board, a light emitting unit, a light limiting member and a lifting support device. The keycap has a light-transmitting area, and the bottom plate has a first positioning hole. The circuit board is arranged on the bottom plate and has a second positioning hole, and the second positioning hole is aligned with the first positioning hole. The light emitting unit is disposed on the circuit board and adjacent to the second positioning hole. The light-limiting member has a first positioning column, an accommodation space and a light-limiting part. The first positioning column can pass through the first positioning hole and the second positioning hole, so that the light-emitting unit is located in the accommodation space, and the light generated by the light-emitting unit Pass through the light-limiting part and the light-transmitting area. The lifting supporting device is arranged between the base plate and the keycap, and the keycap can move up and down relative to the base plate through the lifting supporting device. Compared with the prior art, the light generated by the light-emitting unit of the button of the utility model can accurately pass through the light-limiting part of the light-limiting part and the light-transmitting area of the keycap, so as to improve the product quality of the light-emitting button and the keyboard.

Description

Keys and keyboards

technical field

The utility model relates to a button and a keyboard, in particular to a luminous button and a keyboard.

Background technique

As far as current personal computer usage habits are concerned, the keyboard is one of the indispensable input devices for inputting characters, symbols or numbers. With the gradual popularization of computers, the development of buttons and keyboards today emphasizes visual appeals in addition to general input functions. Therefore, a key and keyboard that can emit light when in use has become a new development direction of the keyboard industry.

Please refer to FIG. 1 , which is a cross-sectional view of a key 1 in the prior art. As shown in FIG. 1 , the button 1 includes a bottom plate 10 , a keycap 12 , a circuit board 14 , a light emitting diode (Light Emitting Diode, LED) 16 , a lifting support device 18 and a light limiting member 19 . The circuit board 14 is disposed on the base plate 10 , and the LED 16 is electrically connected to the circuit board 14 . The lifting support device 18 is disposed between the keycap 12 and the bottom plate 10 , and the light limiting element 19 is disposed on the circuit board 14 . The keycap 12 has a light-transmitting area 120 , and the light-limiting member 19 has an accommodating space 190 and a light-limiting portion 192 . The accommodating space 190 can accommodate the light emitting diode 16 . The light generated by the light-emitting diode 16 can be projected from the light-limiting portion 192 , and then projected out of the keycap 12 through the light-transmitting area 120 , so as to make the key 1 emit light.

However, when the operator installs the light-emitting diode 16 and the light limiting member 19 on the circuit board 14, because there is no positioning structure between the conventional base plate 10, the circuit board 14 and the light limiting member 20, the light limiting member 19 It cannot be precisely arranged on the circuit board 14 . Therefore, the relative position of the light-limiting part 192 of the light-limiting member 19 and the light-emitting diode 16 often deviates, resulting in that the light cannot be accurately emitted from the light-limiting part 192, causing the key 1 to not emit light normally, and further affecting the product quality of the light-emitting keyboard. .

Utility model content

Therefore, one of the objectives of the present invention is to provide a luminous key and keyboard.

According to an embodiment, the button of the present invention includes a keycap, a bottom plate, a circuit board, a light emitting unit, a light limiting member, and a lifting support device. The keycap has a light-transmitting area; the base plate has a first positioning hole; the circuit board is arranged on the base plate, the circuit board has a second positioning hole, and the second positioning hole is aligned with the first positioning hole; the light emitting unit is set On the circuit board and adjacent to the second positioning hole; the light limiting member has a first positioning column, an accommodating space and a light limiting part, and the first positioning column can pass through the first positioning hole and the second positioning The light-emitting unit is located in the accommodating space, and the light generated by the light-emitting unit passes through the light-limiting part and the light-transmitting area; the keycap can be lifted and supported by a lifting support device that can move up and down relative to the bottom plate device, the lifting support device is arranged between the bottom plate and the keycap.

According to the button, the cross-sections of the first positioning hole, the second positioning hole and the first positioning post are polygonal.

According to the button, the base plate also has a third positioning hole, the circuit board also has a fourth positioning hole, and the third positioning hole is aligned with the fourth positioning hole, the light guide further has a second positioning column, the The second positioning column can pass through the third positioning hole and the fourth positioning hole, and the light emitting unit is located in the accommodating space.

According to the button, the cross sections of the third positioning hole, the fourth positioning hole and the second positioning post are polygonal.

According to the button, the light-limiting member is made of plastic material, and the light-limiting member is fixed on the bottom plate by thermal melting.

According to another embodiment, the keyboard of the present invention includes a base plate, a circuit board and a plurality of keys. The structural design of one of the keys on the bottom plate, the circuit board and the keyboard is as described above.

To sum up, the utility model utilizes the positioning column on the light limiting member to pass through the positioning holes on the base plate and the circuit board to locate the relative position of the limiting member and the light emitting unit on the circuit board. Therefore, the light generated by the light-emitting unit can accurately pass through the light-limiting part of the light-limiting member and the light-transmitting area of the keycap, so as to improve the product quality of the light-emitting keys and the keyboard.

The advantages and spirit of the present invention can be further understood from the following descriptions of the drawings and detailed descriptions of specific embodiments.

Description of drawings

FIG. 1 is a cross-sectional view of a key in the prior art.

FIG. 2 is a schematic diagram of a keyboard according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of the button in Fig. 2 along line X-X.

Fig. 4 is a cross-sectional view of a button according to another embodiment of the present invention.

Detailed ways

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of a keyboard 2 according to an embodiment of the present invention. As shown in FIG. 2 , the keyboard 2 includes a bottom plate 30 , a circuit board 32 and a plurality of keys 3 . The button 3 can be pressed by the user to execute the function that the user wants to input.

Please refer to FIG. 3 . FIG. 3 is a cross-sectional view of the key 3 in FIG. 2 along line X-X. As shown in FIG. 3 , the button 3 includes a bottom plate 30 , a circuit board 32 , a keycap 34 , a light emitting unit 36 , a light limiting member 38 and a lifting support device 40 . The keycap 34 has a light-transmitting area 340 , and the bottom plate 30 has a first positioning hole 300 . The circuit board 32 is disposed on the base plate 30 and has a second positioning hole 320 . The light emitting unit 36 is disposed on the circuit board 32 and adjacent to the second positioning hole 320 . The light limiting member 38 has a first positioning post 380 , an accommodating space 382 and a light limiting portion 384 . When assembling, first align the second positioning hole 320 on the circuit board 32 with the first positioning hole 300 on the bottom plate 30, and then pass the first positioning column 380 of the light limiting member 38 through the first positioning hole 300 to align with the second positioning hole 300. Through the hole 320 , the light-emitting unit 36 is located in the accommodating space 382 of the light-limiting member 38 , and the light-limiting portion 384 of the light-limiting member 38 is aligned with the light-emitting unit 36 . In this way, the light generated by the light-emitting unit 36 can pass through the light-limiting portion 384 of the light-limiting member 38 and the light-transmitting region 340 of the keycap 34 , and then project out of the keycap 34 . In this embodiment, the light limiting portion 384 may be a hole formed on the light limiting member 38 , allowing part of the light emitted by the light emitting unit 36 to pass through, and the light limiting member 38 blocks part of the light emitted by the light emitting unit 36 . Thereby, the light emitted by the light emitting unit 36 can be projected toward the direction of the keycap 34 more concentratedly.

In addition, the lifting support device 40 is disposed between the bottom plate 30 and the keycap 34 . As shown in FIG. 3 , the keycap 34 has a first sliding slot 342 and a first locking slot 344 , and the bottom plate 30 has a second sliding slot 302 and a second locking slot 304 . The lifting support device 40 further includes a first support 400 and a second support 402 , wherein the second support 402 is pivotally connected to the first support 400 . The first supporting member 400 has a first sliding part 4000 and a first pivot part 4002 . When assembling the first supporting member 400 , the first sliding part 4000 is slidably disposed in the first sliding slot 342 , and the first pivoting part 4002 is rotatably pivoted in the second locking slot 304 . The second support member 402 has a second sliding portion 4020 and a second pivot portion 4022 . When assembling the second supporting member 402 , the second sliding portion 4020 is slidably disposed in the second sliding slot 302 , and the second pivoting portion 4022 is rotatably pivoted in the first engaging slot 344 . The keycap 34 can move up and down relative to the bottom plate 30 through the lifting support device 38 .

In practical applications, the button 3 may further include an elastic member 42, which is arranged between the keycap 34 and the bottom plate 30, as a source of elastic force required for the keycap 34 to move up and down relative to the bottom plate 30, and the elastic member 42 may be a rubber gasket ( rubber dome), but not limited thereto. In addition, the circuit board 32 has a switch 322 corresponding to the button 3 , such as a membrane switch or other trigger switches. When the button 3 is pressed, the elastic member 42 will trigger the switch 322 on the circuit board 32 to execute the function that the user wants to input. In addition, the light emitting unit 36 may be a light emitting diode (Light Emitting Diode, LED) including a light emitting diode die (LED Die). In practical applications, the electrical contact points of the light emitting unit 36 can be electrically connected to the electrical contact points of the circuit board 32 by using known die-bonding techniques (for example, using a die-bonding glue such as silver paste).

It should be noted that the cross-sections of the first positioning hole 300, the second positioning hole 320 and the first positioning post 380 can be polygonal (such as a quadrilateral). The circuit board 32 is rotated during the process to avoid assembly errors. In this embodiment, the light limiting element 38 can be made of plastic material. Therefore, one end of the first positioning post 380 of the light limiting member 38 can be fixed on the base plate 30 by heat fusion.

Please refer to FIG. 4, which is a cross-sectional view of a button 3' according to another embodiment of the present invention. As shown in Figure 4 and Figure 3, the main difference between the button 3' and the button 3 is that the bottom plate 30' also has a third positioning hole 306, the circuit board 32' also has a fourth positioning hole 324, and the light limiting member 38' There is also a second positioning post 387 . When assembling, the second positioning hole 320 and the fourth positioning hole 324 on the circuit board 32' can be aligned with the first positioning hole 300 and the third positioning hole 306 on the bottom plate 30 respectively, and then the first positioning hole 306 of the light limiting member 38 can be aligned. The positioning post 380 and the second positioning post 387 respectively pass through the first positioning hole 300, the second positioning hole 320, the third positioning hole 306 and the fourth positioning hole 324, so that the light limiting member 38' is arranged on the circuit board 32' , and the light emitting unit 36 is located in the accommodating space 382 of the light limiting member 38'. In this way, the light-limiting element 38' can be more accurately disposed on the circuit board 32', and the light-limiting portion 384 of the light-limiting element 38' can be aligned with the light-emitting unit 36. It should be noted that the elements with the same numbers in FIG. 4 and FIG. 3 have substantially the same working principles, so details will not be repeated here.

Compared with the prior art, the utility model utilizes the positioning column on the light limiting member to pass through the positioning holes on the bottom plate and the circuit board to locate the relative position of the light limiting member and the light emitting unit on the circuit board. Therefore, the light generated by the light-emitting unit can accurately pass through the light-limiting part of the light-limiting member and the light-transmitting area of the keycap, so as to improve the product quality of the light-emitting keys and the keyboard.

Based on the detailed description of the above specific embodiments, it is hoped that the features and spirit of the present invention can be described more clearly, rather than limited by the specific embodiments disclosed above.

Claims (10)

1. A button, characterized in that it comprises: The keycap has a light-transmitting area; The bottom plate has a first positioning hole; The circuit board is arranged on the bottom plate, the circuit board has a second positioning hole, and the second positioning hole is aligned with the first positioning hole; a light emitting unit arranged on the circuit board and adjacent to the second positioning hole; The light-limiting member has a first positioning column, an accommodation space and a light-limiting part, the first positioning column passes through the first positioning hole and the second positioning hole, the light-emitting unit is located in the accommodation space, and the light-emitting unit The generated light passes through the light-restricting portion and the light-transmitting region; and The keycap can move up and down relative to the bottom plate through the lifting support device, and the lifting support device is arranged between the bottom plate and the keycap. 2 . The button according to claim 1 , wherein the cross-sections of the first positioning hole, the second positioning hole and the first positioning post are polygonal. 3. The button according to claim 1, characterized in that: the base plate also has a third positioning hole, the circuit board also has a fourth positioning hole, and the third positioning hole is aligned with the fourth positioning hole, the light guide The component further has a second positioning column, the second positioning column passes through the third positioning hole and the fourth positioning hole, and the light emitting unit is located in the accommodating space. 4 . The button according to claim 3 , wherein cross-sections of the third positioning hole, the fourth positioning hole and the second positioning post are polygonal. 5 . The button according to claim 1 , wherein the light limiting member is a light limiting member made of plastic material, and the light limiting member is fixed to the bottom plate by thermal fusion. 6. A keyboard, characterized in that it comprises: The bottom plate has a first positioning hole; The circuit board is arranged on the bottom plate, the circuit board has a second positioning hole, and the second positioning hole is aligned with the first positioning hole; A plurality of buttons are arranged on the base plate, one of the buttons includes: The keycap has a light-transmitting area; a light emitting unit arranged on the circuit board and adjacent to the second positioning hole; The light-limiting member has a first positioning column, an accommodation space and a light-limiting part, the first positioning column passes through the first positioning hole and the second positioning hole, the light-emitting unit is located in the accommodation space, and the light-emitting unit The generated light passes through the light-restricting portion and the light-transmitting region; and The keycap can move up and down relative to the bottom plate through the lifting support device, and the lifting support device is arranged between the bottom plate and the keycap. 7 . The keyboard according to claim 6 , wherein cross-sections of the first positioning hole, the second positioning hole and the first positioning column are polygonal. 8. The keyboard according to claim 6, characterized in that: the base plate also has a third positioning hole, the circuit board also has a fourth positioning hole, and the third positioning hole is aligned with the fourth positioning hole, the light guide The component further has a second positioning column, the second positioning column passes through the third positioning hole and the fourth positioning hole, and the light emitting unit is located in the accommodating space. 9 . The keyboard according to claim 8 , wherein cross-sections of the third positioning hole, the fourth positioning hole and the second positioning post are polygonal. 10. The keyboard according to claim 6, wherein the light-limiting member is made of plastic material, and the light-limiting member is fixed to the bottom plate by thermal fusion.

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