CN1152290C - Key board - Google Patents
Key board Download PDFInfo
- Publication number
- CN1152290C CN1152290C CNB981053599A CN98105359A CN1152290C CN 1152290 C CN1152290 C CN 1152290C CN B981053599 A CNB981053599 A CN B981053599A CN 98105359 A CN98105359 A CN 98105359A CN 1152290 C CN1152290 C CN 1152290C
- Authority
- CN
- China
- Prior art keywords
- circuit board
- base plate
- film circuit
- keyboard
- clamping device
- 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 - Fee Related
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Abstract
The present invention relates to a keyboard. The keyboard comprises a film circuit board, a bottom board and at least a group of key composite units, wherein at least a piezoelectric switch is arranged on the film circuit board; the bottom board has a first surface and a second surface and at least a group of clamping device is arranged on the first surface; the film circuit board can be sheathed with the first surface and a plurality of holes are arranged on the film circuit board for the clamping devices to pass; at least a group of key composite units align to the piezoelectric switch and are arranged on the corresponding clamping devices on the bottom board. Each key composite unit is provided with a key top, crossed rods and elastic elements and the piezoelectric switch can be knocked after the key composite units are pressed so that a conducting circuit is formed.
Description
The present invention relates to a kind of keyboard, it is thinner particularly to relate to integral thickness, and the keyboard of simple and convenient assembly.
In current information industry, keyboard is the signal input apparatus of the most normal use, and as shown in Figure 1, the structure of general keyboard 99 roughly comprises button 10, plastics group frame 20, film circuit board 30 and metal base plate 40.Wherein, button 10 is installed in plastics group frame 20, and plastics group frame 20 is clamped film circuit board 30 with metal base plate 40, locks with some screws (not shown) again, pressing keys 10 can be knocked the Piezoelectric switches 32 on the film circuit board 30, constitutes turning circuit to realize the purpose of input signal.Yet, for a long time the designing and developing in the process of keyboard, still have many problems and technical barrier to fail to break through or improve, comprising:
1. the thickness of keyboard can't reduce significantly.
2. must be locked with a large amount of screws.
Particularly in the computer industry, especially require portable computer compact, keyboard thickness determines the key factor of computer dimensions often, and one of reason that keyboard thickness can't reduce is, during the design keyboard elements, often only can dwindle the thickness of each element, yet, the thickness of each element reduces in any case, and is still more effective to reduce keyboard thickness not as reducing the number of element.
The one-piece construction of known keyboard 99 as shown in Figure 1, plastics group frame 20 accounts for 1/2nd to 2/3rds in the integral thickness of general portable computer keyboard, all the other thickness of 1/2nd to 1/3rd are the thickness of metal base plate 40 and film circuit board 30, therefore, the existence of plastics group frame 20 is that keyboard 99 has certain thickness principal element, need not if plastics group frame can be omitted, the function that replaces plastics group frame with metal base plate, directly be installed on button on the metal base plate, can reduce the thickness of keyboard integral body so significantly, at least can reduce about 1/2nd of original thickness, in addition, former plastics group frame uses a large amount of plastics or resin material, mould and correlative charges etc. all can save, thereby save appreciable cost expense.
Also have, the assembling of plastics group frame and metal base plate must be used a large amount of screw lockings in the known keyboard, and one comes labor intensive man-hour, and two increase cost, as if reducing manufacturing cost significantly without the screw locking.
The object of the present invention is to provide a kind of keyboard, it reduces keyboard thickness, makes keyboard more frivolous.
Another purpose of the present invention is to provide a kind of keyboard of simple and convenient assembly.
The object of the present invention is achieved like this, and a kind of keyboard promptly is provided, and it comprises: film circuit board has circuit and at least one signal generation device on it; Base plate has at least one group of clamping device on it, described film circuit board can overlap and overlay on the described base plate, and the clamping device on its base plate can pass described film circuit board simultaneously; At least one group of key groups zoarium that comprises the key lid, intersects rod member and flexible member is installed on the corresponding clamping device of described base plate, and pushes corresponding signal generation device formation turning circuit on the aforementioned film circuit board by described key groups zoarium.
The present invention also provides a kind of keyboard manufacturing method, and its key step comprises: preparation is provided with the base plate of at least one group of clamping device; The thin film circuit sleeve-board is overlying on this base plate, makes described clamping device pass described film circuit board, this film circuit board is provided with circuit and at least one signal generation device; With at least one group comprise key lid, the key groups zoarium of rod member and flexible member of intersecting makes and is installed on corresponding clamping device, and aligns described signal generation device, push described key device and make described signal generation device conducting.
The advantage of apparatus of the present invention is, omits plastics group frame in its keyboard and the screw of the plastics group frame that is used for locking, and the thickness of keyboard is reduced, and volume-diminished is easy to carry, and keyboard structure is simple, reduces manufacturing cost.
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is the three-dimensional exploded view of known keyboard;
Fig. 2 is the three-dimensional exploded view of keyboard of the present invention;
Fig. 3 is the sectional view of keyboard of the present invention.
See also Fig. 2, keyboard 100 of the present invention comprises key groups zoarium 150, film circuit board 160 and base plate 170.Wherein, this key groups zoarium 150 comprises key lid 152, intersection rod member 154 and flexible member 156.This film circuit board 160 is provided with at least one Piezoelectric switches 162, several P.e.c. 164 and several through holes 166.This base plate 170 is made by the one-body molded die casting of metal, and it is provided with first surface 174 and second surface 176, is provided with array card fixing apparatus 172 on first surface 174, and this each group clamping device 172 comprises two fixing projections 1722 that keep suitable spacing.
Please consult Fig. 3 simultaneously, when assembling, at first base plate 170 is made through the die casting mode with metal (as magnesium, aluminium alloy), clamping device 172 on it also is shaped in a surface 174 of base plate 170, secondly, these film circuit board 160 covers are overlying on the first surface 174 of base plate 170, and the fixing projection 1722 of base plate 170 passes film circuit board 160 through holes 166 and exposes, and engage with key groups fit 150, its each through hole 166 of these film circuit board 160 mats is set in and respectively fixes projection 1722 and finish the location.Film circuit board 160 Piezoelectric switches 162 behind the assembling location roughly are positioned at the center that one group of clamping device 172 fixes projection 1722.Have, key groups zoarium 150 is covered 152 first socket flexible members 156 with key and align with Piezoelectric switches 162, the cross bar 1541 of rod member 154 of will intersecting again fixes with clamping device 172, and being fixed is installed in base plate 170.When manipulating, key moves down intersection rod member 154 after covering 152 pressurizeds, force the Piezoelectric switches 162 of flexible member 156 distortion and impact film circuit board 160, make Piezoelectric switches 162 constitute conducting state and produce signal, signal is transferred to other electronic installations through P.e.c. 164 again, realizes the purpose of signal input.After pushing releasing, the elastic force that mat flexible member 156 recovers moves up intersection rod member 154, the conducting that key groups fit 150 is recovered to push preceding state and can be removed Piezoelectric switches 162.
Because the structure of keyboard 100 of the present invention is compared with aforementioned known keyboard 99, a large amount of screws of plastics group frame 20 and locking plastics group frame 20 have been omitted, so, the thickness of keyboard reduces significantly, package program is simplified, with regard to manufacturing cost,, production costs and the corresponding material and the development cost of a cover module have correspondingly just been saved because of having reduced plastics group frame and screw.With regard to product design, the apparent size of product can be broken through restriction in the past, particularly portable computer and become more frivolous, complies with information industry development trend now.With regard to assembling, the present invention is overlying on base plate 170 with film circuit board 160 covers, the fixing projection 1722 of mat clamping device 172 passes through hole 166 and fixes key groups zoarium 150, the process of assembling needn't be again using a large amount of screw locking plastics group frames, so the man-hour of completed knocked down products and manpower also reduce thereupon.
Below only embodiments of the invention are described, but can not be limited the present invention, various variations or modification according to spirit of the present invention is done all are included in the claim of invention.
Claims (10)
1. keyboard is characterized in that it comprises:
Film circuit board has circuit and at least one signal generation device on it;
Base plate has at least one group of clamping device on it, described film circuit board can overlap and overlay on the described base plate, and the clamping device on the described base plate can pass described film circuit board simultaneously;
At least one group of key groups zoarium that comprises the key lid, intersects rod member and flexible member is installed on the corresponding clamping device of described base plate, and pushes corresponding signal generation device formation turning circuit on the described film circuit board by described key groups zoarium.
2. keyboard as claimed in claim 1 is characterized in that described base plate is for to make with the die casting of heat conductivity preferred metal one.
3. keyboard as claimed in claim 1 is characterized in that, the clamping device of described base plate comprises that several fix projection.
4. keyboard as claimed in claim 1 is characterized in that, described film circuit board is provided with the hole that several clamping devices that make described base plate pass described film circuit board.
5. keyboard as claimed in claim 1 is characterized in that, the signal generation device that the flexible member of described key groups zoarium contacts described film circuit board constitutes turning circuit.
6. a keyboard manufacturing method is characterized in that, its key step comprises:
Preparation is provided with the base plate of at least one group of clamping device;
The thin film circuit sleeve-board is overlying on the described base plate, makes described clamping device pass described film circuit board, described film circuit board is provided with circuit and at least one signal generation device;
At least one group of key groups zoarium that comprises key lid, intersection rod member and flexible member is installed on corresponding clamping device, and aligns described signal generation device, push described key device and make described signal generation device conducting.
7. keyboard manufacturing method as claimed in claim 6 is characterized in that described base plate is for to make with the die casting of heat conductivity preferred metal one.
8. keyboard manufacturing method as claimed in claim 6 is characterized in that, the clamping device of described base plate comprises that several fix projection.
9. keyboard manufacturing method as claimed in claim 6 is characterized in that, described film circuit board is provided with the hole that several clamping devices that make described base plate can pass film circuit board.
10. keyboard manufacturing method as claimed in claim 6 is characterized in that, the flexible member of described key groups zoarium can knock the signal generation device of described film circuit board and constitute turning circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981053599A CN1152290C (en) | 1998-02-27 | 1998-02-27 | Key board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981053599A CN1152290C (en) | 1998-02-27 | 1998-02-27 | Key board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1227359A CN1227359A (en) | 1999-09-01 |
| CN1152290C true CN1152290C (en) | 2004-06-02 |
Family
ID=5218764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981053599A Expired - Fee Related CN1152290C (en) | 1998-02-27 | 1998-02-27 | Key board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1152290C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221897A (en) * | 2011-07-15 | 2011-10-19 | 厦门大学 | Piezoelectric energy-storage keyboard |
| CN208655469U (en) * | 2018-08-16 | 2019-03-26 | 深圳市唯能联科技有限公司 | A kind of self-powered key and remote controler |
| CN110858525A (en) * | 2018-08-24 | 2020-03-03 | 宏碁股份有限公司 | Keyboard, electronic device and assembling method of keyboard |
-
1998
- 1998-02-27 CN CNB981053599A patent/CN1152290C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1227359A (en) | 1999-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040602 |