CN208422748U - Film computer keyboard - Google Patents
Film computer keyboard Download PDFInfo
- Publication number
- CN208422748U CN208422748U CN201821120074.9U CN201821120074U CN208422748U CN 208422748 U CN208422748 U CN 208422748U CN 201821120074 U CN201821120074 U CN 201821120074U CN 208422748 U CN208422748 U CN 208422748U
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- CN
- China
- Prior art keywords
- circuit board
- key
- printed circuit
- contact
- conductive lead
- 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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- Push-Button Switches (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The utility model discloses a kind of film computer keyboards, including housing face-plate, key, Capsule, thin film circuit and circuit board, the Capsule, thin film circuit and circuit board are located in housing face-plate, key is distributed in the upper surface of housing face-plate, Capsule is arranged in the lower section of the key, thin film circuit includes the upper layer printed circuit board set gradually from top to bottom, separation layer, lower layer printed circuit board, upper layer printed circuit board, several conductive lead wires and several contacts are provided on lower layer printed circuit board, conductive lead wire is connected to circuit board, contact on upper layer printed circuit board, the contact of lower layer printed circuit board corresponds, several apertures for being connected to two contacts up and down are offered on separation layer, it is characterized by: being electrically connected between conductive lead wire and contact by resistive conductor.On the basis of existing film cabling (i.e. conductive lead wire), each contact connects conductive lead wire by resistive conductor, forms resistive isolation, can be to avoid the short circuit problem under key-case simultaneously.
Description
Technical field
The utility model relates to computer fields, and in particular to a kind of film computer keyboard.
Background technique
Membrane keyboard is seized of most markets with advantages such as at low cost, simple process and good hand touch, in daily life
It is all membrane keyboard that used keyboard, which is substantially, and the structure of membrane keyboard is very simple, on the keyboard that can directly contact
After lower cover, keycap, it can be seen that the silicon rubber cup below key, thin film circuit and circuit board.Thin film circuit generally by it is upper, in,
Lower up of three-layer, wherein upper layer and lower layer use conductive coating printed circuit, and corresponding contact is designed with below key, intermediate
One layer is separation layer, is being again provided with circular contact (or hollowing out) in key part, when pressing keycap, realizes upper layer and lower layer electricity
The connection on road produces corresponding signal.Present computer membrane keyboard, it is real with less chip I/O using 2 spot scan technologies
Now up to 102~118 or so keyboard contact scanning.Since technology is limited to, film can only realize cabling, but can not integrate two poles
Pipe carries out short circuit isolation of the multikey simultaneously when pressing, therefore is easy to cause chip short in multiple keys while in the case where press
Road.
Utility model content
The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide a kind of film computer
Keyboard.
The technical scheme in the invention for solving the above technical problem is:
A kind of film computer keyboard, including housing face-plate, key, Capsule, thin film circuit and circuit board, the Capsule,
Thin film circuit and circuit board are located in housing face-plate, and key is distributed in the upper surface of housing face-plate, the lower section setting of the key
Capsule, thin film circuit include the upper layer printed circuit board, separation layer, lower layer printed circuit board set gradually from top to bottom, upper printing electricity
It is provided with several conductive lead wires on road floor, lower layer printed circuit board and several contacts, conductive lead wire are connected to circuit board, on
The contact of contact, lower layer printed circuit board on layer printed circuit board corresponds, several connections or more two are offered on separation layer
The aperture of a contact, it is characterised in that: be electrically connected between conductive lead wire and contact by resistive conductor.
Preferably, the resistive conductor uses fixed carbon resister.
Preferably, housing face-plate upper surface is provided with the Macintosh set for being set on two neighboring key, it is described
Macintosh tackling has for blocking the key slot for setting two neighboring key (neighbouring adjacent with left and right), is located at Macintosh set
There are differences for the triggering stroke of two interior keys.By the triggering stroke of two keys, there are differences, after pressing Macintosh set,
Two keys in Macintosh set are pressed simultaneously, and the triggerings of two keys is there are the time difference, and pressing Macintosh, to cover speed faster, when
Between difference it is shorter, press that Macintosh set speed is slower, and the time difference is longer, the scanning of time difference judged by circuit board, Ke Yishi
Calculate different time difference now to know different key dynamics.
Preferably, the inner cavity upper end of Capsule is fixed with pressing protrusion, Macintosh covers Capsule corresponding to interior two keys
Pressing protrusion there are differences.
The utility model compared with prior art, has the following advantages that and effect: in existing film cabling, (i.e. conduction is drawn
Line) on the basis of, each contact connects conductive lead wire by resistive conductor, forms resistive isolation, can be to avoid under key-case simultaneously
Short circuit problem；And so as to which the electromagnetic signal interference between each contact between conductive lead wire network is isolated, it is conducive to
Circuit board scans and recognizes；By the triggering strokes of two keys, there are differences to pass through circuit board pair after pressing Macintosh set
The scanning of time difference judges, may be implemented to calculate different time difference to know different key dynamics.
Detailed description of the invention
Fig. 1 is connection schematic diagram between the utility model routine conductive lead wire and contact.
Fig. 2 is connection schematic diagram between the utility model embodiment conductive lead wire and contact.
Fig. 3 is the structural schematic diagram of conventional keypad.
Fig. 4 is that the utility model keyboard installs the structural schematic diagram after Macintosh set additional.
Fig. 5 is the mounting structure schematic diagram of the utility model embodiment Macintosh set.
Fig. 6 is the circuit diagram of the utility model embodiment keyboard.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
The present embodiment film computer keyboard, including housing face-plate 1, key 2, Capsule 3, thin film circuit and circuit board, institute
It states Capsule 3, thin film circuit and circuit board to be located in housing face-plate 1, key 2 is distributed in the upper surface of housing face-plate 1, the key
Capsule 3 is arranged in 2 lower section, the guide post 4 for being pressed down against Capsule 3 is wholely set on key 2, thin film circuit includes from upper
Upper layer printed circuit board 5, separation layer 6, the lower layer printed circuit board 7 set gradually under, upper layer printed circuit board 5, lower layer printed circuit board 7
On be provided with several conductive lead wires 8 and several contacts 9, conductive lead wire 8 is connected to circuit board, on upper layer printed circuit board 5
Contact 9, lower layer printed circuit board 7 contact 9 correspond, several connections two contacts 9 up and down are offered on separation layer 6
Aperture 10 is electrically connected between conductive lead wire 8 and contact 9 by resistive conductor 11.The resistive conductor 11 uses fixed carbon resister.
Connection relationship between the conductive lead wire 8 and contact 9 of existing traditional films keyboard is as shown in Figure 1, contact 9 is located at
On conductive lead wire 8, the reason that traditional films keyboard has short circuit is: being illustrated with common scanning end, when being respectively at difference two
When the key at a common scanning end is pressed simultaneously, it will lead to two common scanning ends and form direct line connection relationship, such key
Disc core piece can not identify the common end push button signalling of the two short circuits, if scanning circuit is the low and high level by different periods
Carry out key range, will lead to height, low level two foot positions are directly connected to and form chip local high current, and time length will
Burn chip or the chip lost of life.It theoretically requires to be isolated in this way.
As shown in Fig. 2, be electrically connected between conductive lead wire 8 and contact 9 by resistive conductor 11, can effectively solve while key
Short circuit problem in the case of 2, with 8 scanning common ends, for 16 scan the keyboard at section end, as shown in Figure 6.Pass through circuit
Figure not will form the feelings being connected directly it is found that no matter how key is pressed simultaneously between common scanning end and signal receiving end
Condition has reached isolation effect.
1 upper surface of housing face-plate is provided with the set of the Macintosh for being set on two neighboring key 2 12, the Macintosh
Set 12 has the triggering stroke of two keys 2 for blocking 2 slot of key for setting two neighboring key 2, in Macintosh set 12
There are differences.The inner cavity upper end of Capsule 3 is fixed with pressing protrusion 13, Capsule 3 corresponding to two keys 2 in Macintosh set 12
There are differences for pressing protrusion 13, so that there are differences for the triggering stroke of two keys 2 of realization.
By the triggering stroke of two keys 2, there are differences, and after pressing Macintosh set 12, two in Macintosh set 12 are pressed
Key 2 is pressed simultaneously, and the triggerings of two keys 2 pressed Macintosh and covers that 12 speed are faster, and the time difference is shorter, presses there are the time difference
Macintosh covers the scanning judgement that 12 speed are slower, and the time difference is longer, by circuit board to the time difference, when may be implemented to calculate different
Between difference know 2 dynamics of different key, facilitate key 2 dynamics of some players on music game, the programs such as game of fighting
Demand.
In addition to can through this embodiment in different height pressing protrusion 13 realize 2 dynamics of key detection other than, may be used also
It is realized with the guide post 4 by setting different height.
Above content is only illustrate to examples for clearly illustrating the present invention described in this specification.The utility model
Person of ordinary skill in the field can make various modifications or additions to the described embodiments or using class
As mode substitute, content without departing from the utility model specification or surmount model defined in the claims
It encloses, all should belong to the protection range of the utility model.
Claims (4)
- It is the Capsule, thin 1. a kind of film computer keyboard, including housing face-plate, key, Capsule, thin film circuit and circuit board Film circuit and circuit board are located in housing face-plate, and key is distributed in the upper surface of housing face-plate, and glue is arranged in the lower section of the key Cap, thin film circuit include the upper layer printed circuit board, separation layer, lower layer printed circuit board set gradually from top to bottom, upper printed circuit Several conductive lead wires and several contacts are provided on layer, lower layer printed circuit board, conductive lead wire is connected to circuit board, upper print The contact of contact, lower layer printed circuit board on brush circuit layer corresponds, several connections two up and down are offered on separation layer The aperture of contact, it is characterised in that: be electrically connected between conductive lead wire and contact by resistive conductor.
- 2. film computer keyboard according to claim 1, it is characterised in that: the resistive conductor uses fixed carbon resister.
- 3. film computer keyboard according to claim 1, it is characterised in that: housing face-plate upper surface is provided with for covering The Macintosh set being located on two neighboring key, the Macintosh tackling have the key slot that two neighboring key is set for card, position There are differences for the triggering stroke of two keys in Macintosh covers.
- 4. film computer keyboard according to claim 3, it is characterised in that: the inner cavity upper end of Capsule is fixed with by belling It rises, there are differences for the pressing protrusion of Capsule corresponding to two keys in Macintosh set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821120074.9U CN208422748U (en) | 2018-07-10 | 2018-07-10 | Film computer keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821120074.9U CN208422748U (en) | 2018-07-10 | 2018-07-10 | Film computer keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208422748U true CN208422748U (en) | 2019-01-22 |
Family
ID=65123657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821120074.9U Expired - Fee Related CN208422748U (en) | 2018-07-10 | 2018-07-10 | Film computer keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208422748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652282A (en) * | 2020-12-31 | 2021-04-13 | 常州视感科技有限公司 | Electronic percussion instrument |
-
2018
- 2018-07-10 CN CN201821120074.9U patent/CN208422748U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652282A (en) * | 2020-12-31 | 2021-04-13 | 常州视感科技有限公司 | Electronic percussion instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20190710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |