CN2704912Y - Luminescent button switches - Google Patents
Luminescent button switches Download PDFInfo
- Publication number
- CN2704912Y CN2704912Y CN 200320100695 CN200320100695U CN2704912Y CN 2704912 Y CN2704912 Y CN 2704912Y CN 200320100695 CN200320100695 CN 200320100695 CN 200320100695 U CN200320100695 U CN 200320100695U CN 2704912 Y CN2704912 Y CN 2704912Y
- Authority
- CN
- China
- Prior art keywords
- circuit board
- conductive part
- flexible member
- key switch
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a luminescent button switch, comprising a circuit board, an elastic element, a light source, a first conductive section and a second conductive section. The elastic element is arranged on the circuit, with a space defined by the elastic element and the circuit board. The light source is arrange on one side edge of the circuit board, and the light beam emitted by the light source transfer in the above space. In addition, the first conductive section is arranged on the elastic element and in the above space, and so is the second conductive section, therefore the first conductive section and the second conductive section are in electric contact, when the elastic element is pressed by an outer force.
Description
Technical field
The utility model relates to a kind of illuminated key switch, particularly relates to a kind of illuminated key switch of simplifying structure, and this key switch can effectively be saved material and space, and the person of being easy to use uses in the dark place and can increase attractive in appearance.
Background technology
At first consult Fig. 1, this figure is the schematic diagram of expression one known illuminated key switching structure.As shown in the figure, the known illuminated key switching structure that is generally used in computor-keyboard mainly by a supporting bracket B, a thin film circuit components M, a hollow elastic element E with, a light guide plate X, a light source L and a keycap C formed.Supporting bracket B is in order to support whole key switching structure.In addition, thin film circuit components M is positioned at supporting bracket B top, light guide plate X is arranged at thin film circuit components M top again, wherein light guide plate X has a holes structure H, make and to contact with thin film circuit components M when flexible member E is pressed by external force, wherein light source L is a side that is arranged at light guide plate X, penetrate a light and enter light guide plate X, again by light guide plate X with the supreme square key cap of ray guidance C (shown in the direction of arrow).
Generally speaking, thin film circuit components M is by the flexible upper film M1 of a tool, once film M2 and a spacer element M3 are formed, spacer element M3 is in order to interval upper film M1 and following film M2, and limits a space 20 jointly with upper film M1, following film M2.In addition, upper film M1 bottom surface is provided with one first conductive part P1, and film M2 end face is provided with one second conductive part P2 down, wherein the first conductive part P1 and the second conductive part P2 are arranged in space 20, and be connected in the printed circuit (not shown) on upper film M1 and the following film M2 respectively, the first conductive part P1 and the second conductive part P2 are that maintenance separates and is off state under normal condition.
As shown in Figure 1, hollow elastic element E is arranged at thin film circuit components M top, and forms a space 10 with thin film circuit components M, and wherein flexible member E has a protuberance E1, and this protuberance E1 is positioned at space 10 middle positions.Again, connect a keycap C in flexible member E top, thus when the user pushes top keycap C, it is downward to make that the protuberance E1 of flexible member E central authorities compresses upper film M1, and make the above-mentioned first conductive part P1 be positioned at down the second conductive part P2 of film M2 end face and electrically contact and be conducting state.
Because above-mentioned known illuminated press-key structure is too complicated, the utility model proposes an illuminated button of simplifying structure, the space that can significantly save cost and reduce structure.
The utility model content
A kind of illuminated key switch comprises a circuit board, a flexible member, a light source, one first conductive part and one second conductive part.Above-mentioned flexible member is arranged on the circuit board, wherein the common space that limits of flexible member and circuit board.Light source is arranged at a side of circuit board, sends a light through light source and transmits in above-mentioned space.
In addition, first conductive part is arranged on the flexible member and is positioned at above-mentioned space.Second conductive part is arranged on the circuit board and is positioned at above-mentioned space, and wherein first conductive part and second conductive part electrically contact when flexible member is subjected to external force pressure.Use in the dark place by the utility model person of being easy to use, and can increase the attractive in appearance of button.
Description of drawings
Fig. 1 is the schematic diagram of expression one known key switching structure;
Fig. 2 is the schematic diagram of first embodiment in expression the utility model;
Fig. 3 a, 3b are the schematic diagrames of second embodiment in expression the utility model.
The reference numeral explanation:
10～space
30～perforate
A～base plate
B～supporting bracket
C～keycap
E～flexible member
E1～protuberance
E2～first conductive part
L～light source
M～thin film circuit components
N～circuit board
M1～upper film
M2～following film
M3～spacer element
P1～first conductive part
P2～second conductive part
P1 ', P2 '～second conductive part
X～light guide plate
H～holes structure
Embodiment
First embodiment
Consult Fig. 2, this figure is the schematic diagram of first embodiment in expression the utility model.In the present embodiment, illuminated key switch mainly comprises a light source L, a base plate A, a supporting bracket B, a circuit board N, a hollow elastic element E and a keycap C.Above-mentioned supporting bracket B is positioned at base plate A top in order to support whole press-key structure, and circuit board N is positioned at supporting bracket B top and has light transmission again; In addition, above-mentioned hollow elastic element E is arranged at circuit board N top, and forms a space 10 with circuit board N.
As shown in the figure, bowl-shape flexible member E is an elastomeric material, and is positioned at space 10 central position and has a protuberance E1, and protuberance E1 top is provided with one first conductive part E2 again.Wherein, be provided with second conductive part P1 ' and the P2 ' in circuit board N surface, be positioned at space 10 and be printed on the circuit board N, the second conductive part P1 ', P2 ' are the printed circuit (not shown) that is connected on the circuit board N again, and the first conductive part E2 separates with the second conductive part P1 ', P2 ' maintenance and is off state under normal condition.In addition, connect a keycap C in addition in flexible member E top, thus, when the user pushes top keycap C, to make the protuberance E1 of flexible member E central authorities move down, and make the above-mentioned first conductive part E2 be electrically connected the second conductive part P1 ', P2 ', and be a conducting state.
In particular, illuminated key switch of the present utility model has a light source L, is arranged at the downside that base plate A went up and be positioned at circuit board N.Wherein have a perforate 30 in supporting bracket B central authorities, be right against space 10, above-mentioned again light source L is positioned at perforate 30.In addition, button C has a transparent area, can limit a symbol (not shown) as letter or number.In the present embodiment, light source L is a light-emitting diode (LED), can be towards button top emission light (shown in Fig. 2 direction of arrow), so light can be passed the circuit board N and the flexible member E of top by perforate 30, and make button produce a luminous effect, can allow the user in seeing the symbol that is limited on the keycap C under the dim environment clearly whereby.
Wherein, foregoing circuit plate N also can be known soft polyester film (polyester Mylar) material, circuit board N excessively caves in toward perforate 30 belows during for fear of pressing keys, therefore the more known film of thickness of circuit board N is thick in the utility model, flexible member E also can be made by light transmissive material again, makes the penetrable flexible member E of light and have a luminous effect.
Second embodiment
Consult Fig. 3 a, 3b simultaneously, this two figure is the schematic diagram of second embodiment in expression the utility model.In present embodiment, illuminated key switch mainly comprises a light source L, a base plate A, a supporting bracket B, a circuit board N, a hollow elastic element E and a keycap C.Above-mentioned supporting bracket B is positioned at base plate A top in order to support whole press-key structure, and circuit board N is positioned at supporting bracket B top again; In addition, above-mentioned hollow elastic element E is provided with circuit board N top, and forms a space 10 with circuit board N.
Above-mentioned flexible member E is made and have light transmission by elastomeric material, and wherein flexible member E has a protuberance E1, is positioned at space 10 central position.As shown in the figure, one first conductive part E2 is the top that is arranged at protuberance E1.In addition, be provided with the second conductive part P1 ', P2 ' in circuit board N surface, wherein the second conductive part P1 ', P2 ' are printed in circuit board N to go up and be arranged in space 10, printed circuit T1, T2 (shown in Fig. 3 b) on the second conductive part P1 ', the P2 ' difference connecting circuit plate N again, the second conductive part P1 ', P2 ' keep separating and are off state under normal condition.
In addition, connect a keycap C in flexible member E top, when the user pushes top keycap C, will make the protuberance E1 of flexible member E central authorities move down thus, and make the above-mentioned first conductive part E2 be electrically connected the second conductive part P1 ', P2 ', and be a conducting state.In particular, illuminated key switch of the present utility model has a light source L, is arranged on the circuit board N, and is positioned at space 10 equally with the second conductive part P1 ', P2 '.
Wherein, above-mentioned light source L is a light-emitting diode (LED).Shown in Fig. 3 b, look it by directions X among Fig. 3 a, the position of light source L is to depart from the above-mentioned first conductive part E2 in space 10, so can make the second conductive part P1 ', P2 ' electrical connection when press of key switch, and the unlikely obstruction that is subjected to light source L.In addition, be provided with printed circuit T3 in addition and connect light source L on circuit board N, driving light source L is towards button top emission light (shown in Fig. 3 a direction of arrow) whereby, and so light can pass flexible member E, and makes button produce a luminous effect.
Wherein, foregoing circuit plate N also can be known polyester film (Polyester Mylar) material, because the below has metal supporting bracket B to form firm support, so the thickness of circuit board N do not need too thickly, and the circuit board N preferred thickness of being made by polyester film in present embodiment is 0.075mm.
In sum, the utility model provides an illuminated key switch, and this illuminated key switch can effectively be saved cost and space, and the person of being easy to use uses in the dark place and increases attractive in appearance.
Though with preferred embodiment openly as above by the utility model; yet it is not in order to limit scope of the present utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; certainly can do and change and retouching, therefore protection range of the present utility model should be with being as the criterion that claims were defined.
Claims (9)
1. an illuminated key switch is characterized in that comprising: a circuit board; One is arranged at the flexible member on the described circuit board, the common space that limits of wherein said flexible member and described circuit board; One is arranged at the light source of a side of described circuit board, and described light source sends a light and transmits in described space; One is arranged on the described flexible member and is positioned at first conductive part in described space; One is arranged on the described circuit board and is positioned at second conductive part in described space, and wherein described first conductive part and described second conductive part electrically contact when described flexible member is subjected to external force pressure.
2. illuminated key switch as claimed in claim 1 is characterized in that: described circuit board is between described space and described light source, and described circuit board has light transmission.
3. illuminated key switch as claimed in claim 1 is characterized in that: described light source is arranged on the described circuit board, and is positioned at described space.
4. illuminated key switch as claimed in claim 1 is characterized in that: described light source is a light-emitting diode.
5. illuminated key switch as claimed in claim 1 is characterized in that: described flexible member is a light transmissive material.
6. illuminated key switch as claimed in claim 1 is characterized in that: described second conductive part is printed on the described circuit board.
7. illuminated key switch as claimed in claim 1 is characterized in that: the material of described flexible member is a rubber.
8. illuminated key switch as claimed in claim 7 is characterized in that: being shaped as of described flexible member is bowl-shape.
9. illuminated key switch as claimed in claim 7 is characterized in that: described flexible member has a protuberance, and described first conducting position is on described protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100695 CN2704912Y (en) | 2003-11-26 | 2003-11-26 | Luminescent button switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100695 CN2704912Y (en) | 2003-11-26 | 2003-11-26 | Luminescent button switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2704912Y true CN2704912Y (en) | 2005-06-15 |
Family
ID=34761708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320100695 Expired - Lifetime CN2704912Y (en) | 2003-11-26 | 2003-11-26 | Luminescent button switches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2704912Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866220B (en) * | 2009-04-17 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | Key |
| CN103545137A (en) * | 2013-11-06 | 2014-01-29 | 昆山兴协和光电科技有限公司 | Keyboard key structure |
-
2003
- 2003-11-26 CN CN 200320100695 patent/CN2704912Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866220B (en) * | 2009-04-17 | 2011-12-14 | 鸿富锦精密工业（深圳）有限公司 | Key |
| CN103545137A (en) * | 2013-11-06 | 2014-01-29 | 昆山兴协和光电科技有限公司 | Keyboard key structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131126 Granted publication date: 20050615 |