CN103605428B - A kind of computer keyboard of restructural button - Google Patents
A kind of computer keyboard of restructural button Download PDFInfo
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- CN103605428B CN103605428B CN201310610411.8A CN201310610411A CN103605428B CN 103605428 B CN103605428 B CN 103605428B CN 201310610411 A CN201310610411 A CN 201310610411A CN 103605428 B CN103605428 B CN 103605428B
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- button
- lid
- key
- adapter
- keyboard
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Abstract
The present invention relates to a kind of computer keyboard of restructural button, adapter of the invention applies a kind of new key assignments circuit, the key assignments circuit only needs a small amount of resistance and diode, and all of adapter can share resistance, resistance may not necessarily be arranged in each adapter, substantially reduce the area occupied of adapter so that adapter, keyboard can realize miniaturization.
Description
Technical field
The present invention relates to a kind of computer keyboard of restructural button.
Background technology
The Chinese patent application of Application No. 201310087950.8 discloses a kind of computer keyboard of movable button.
Including keyboard substrate and the button being arranged on the keyboard substrate, one is provided with the keyboard substrate below each button
The individual adapter including all key value informations on keyboard, the bottom of each of which button is provided with one with phase on the adapter
Answer the contact block of key value information corresponding matching.The structure of each adapter is identical, and each adapter is all key assignments letters of correspondence
The key assignments circuit of breath, each key assignments circuit is made up of one group of contact comprising all key assignments, each contact one key assignments of correspondence.
And each button bottom is respectively provided with a pressure contact block, the pressure contact block and the contact position phase for exporting respective keys key assignments
Correspondence, therefore, no matter which position button moves to, when it is pressed, the pressure contact block of its bottom can only be pressed and touched and its key assignments phase
Corresponding that press-contacting type switch, makes its corresponding key assignments of output, realizes the removable function of button.
Fig. 2, Fig. 4 sets forth two kinds of key assignments circuits of adapter, and its key assignments circuit is complex, including substantial amounts of electricity
Resistance device, occupy suitable space so that adapter, button all must tie up larger area, be unfavorable for adapter or even
The miniaturization of whole keyboard.
The content of the invention
It is an object of the invention to provide a kind of computer keyboard of restructural button, it is used to solve existing movable button key
The big problem of disc adapter, keyboard area.
To achieve the above object, the solution of the present invention includes：
A kind of computer keyboard of restructural button, including keyboard substrate, button adapter corresponding with number of keys,
Each adapter is a key assignments circuit comprising all key value informations, it is characterised in that the key assignments circuit is single for connection
The binary coding circuit of piece machine, the binary coding circuit includes pullup/pulldown resistance, diode and no less than number of keys
Contact.
The number of keys meets M less than or equal to 2n- 1, n are the binary coding circuit connection single-chip processor i/o mouthful
Quantity.
The number of diodes of each adapter is equal to n, and each adapter shares n pullup/pulldown resistance.
The keyboard includes button cap and button lid, and button cover buckle is located on button cap, and button cap is erected on keyboard shell,
Button lid lower section is provided with the pressure contact block for pressing the tactile adapter, is connected by spring between button lid and keyboard shell.
The pressure contact block lower section is provided with a sheet metal, and the sheet metal position is unique with the marking keys on corresponding button cap
Correspondence.
Adapter of the invention applies a kind of new key assignments circuit, and the key assignments circuit only needs a small amount of resistance and two poles
Pipe, and all of adapter can share resistance, and resistance may not necessarily be arranged in each adapter, substantially reduce adaptation
The area of the occupancy of device so that adapter, keyboard can realize miniaturization.
Each adapter sets several diodes and the contact no less than number of keys, and number of diodes is equal to single-chip microcomputer
For I/O mouthfuls of quantity of key assignments of sampling, I/O mouthfuls of quantity n meets M less than or equal to 2n- 1, M are number of keys.This mode is only needed
It is also little to single-chip processor i/o resource consumption according to I/O mouthfuls of different permutation and combination method corresponding configuration contacts.
Brief description of the drawings
Fig. 1 is key assignments circuit theory diagrams of the invention；
Fig. 2 is a kind of implementation method circuit theory diagrams of 48 buttons；
Fig. 3 is the keyboard structure figure with button lid；
Fig. 4 is the keyboard structure figure without button lid；
Fig. 5 is button lid structure chart；
Fig. 6 is button cap top view；
Fig. 7 is a kind of sheet metal location drawing；
Fig. 8 is another sheet metal location drawing.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
In order to tell about the principle of key assignments circuit of the present invention, Fig. 1 gives a simply example, represents and uses n bar input lines
（I/O mouthfuls）Represent most 2n- 1 key assignments.For n bar input lines, its all of state has 2nIt is individual, wherein complete with n-bit value
For " 1 " is indicated without button；The state that certain key is pressed is represented when at least 1 place value is " 0 " in n（Will be defeated by respective diode
Enter I/O lines and pull into low level）.According to this simple combination principle, 2 are may be constructed by n bar I/O linesn- 1 simple combination of button
Keyboard circuit, abbreviation n rank simple combination keyboard circuits.Essence such as the 3 rank simple combination keyboard circuits of Fig. 1 is exactly digital circuit
In typical 8-3 line binary coders.
Can realize that n binary coding singly-bound is input into using this n ranks simple combination keyboard circuit.K1 in circuit,
K2 ..., K6 be the contact triggered when button is pressed, can using press-contacting type switch realize.This simple combination keyboard circuit
Can be detected by the following method：When not having button, all of I/O lines input is high level；When a certain button is pressed,
I/O input lines corresponding with button connection diode are changed into low level.Directly read PA mouthfuls of state can differentiate which is
Button is pressed.Simple combination keyboard circuit its core for being made up of n bar I/O lines is in ground wire and above to pull into high level
Add button and diode group between input I/O lines.When button is pressed, diode group ensures to produce one group unduplicated n two
Scale coding.2 are had for n bar I/O linesnInput state is planted, wherein a kind of state is used to indicate without key-press status that remaining 2n–1
The state of kind is used to represent 2n- 1 key assignments of different key.
As Fig. 1 circuits are simpler.As Fig. 2 gives a kind of key assignments circuit of 48 buttons, use 6 single-chip processor i/os and connect
Mouth line, the simple combination circuit arrangement of 48 key assignments is as shown in the table：
| Keypad numerals | I/O combination of interfaces（Interface in table represents that the state of this interface is ' 0 '） |
| 1 | PA0 |
| 2 | PA1 |
| 3 | PA2 |
| 4 | PA3 |
| 5 | PA4 |
| 6 | PA5 |
| 7 | PA0 and PA1 |
| 8 | PA0 and PA2 |
| 9 | PA0 and PA3 |
| 10 | PA0 and PA4 |
| 11 | PA0 and PA5 |
| 12 | PA1 and PA2 |
| 13 | PA1 and PA3 |
| 14 | PA1 and PA4 |
| 15 | PA1 and PA5 |
| 16 | PA2 and PA3 |
| 17 | PA2 and PA4 |
| 18 | PA2 and PA5 |
| 19 | PA3 and PA4 |
| 20 | PA3 and PA5 |
| 21 | PA4 and PA5 |
| 22 | PA0, PA1 and PA2 |
| 23 | PA0, PA1 and PA3 |
| 24 | PA0, PA1 and PA4 |
| 25 | PA0, PA1 and PA5 |
| 26 | PA0, PA2 and PA3 |
| 27 | PA0, PA2 and PA4 |
| 28 | PA0, PA2 and PA5 |
| 29 | PA0, PA3 and PA4 |
| 30 | PA0, PA3 and PA5 |
| 31 | PA0, PA4 and PA5 |
| 32 | PA1, PA2 and PA3 |
| 33 | PA1, PA2 and PA4 |
| 34 | PA1, PA2 and PA5 |
| 35 | PA1, PA3 and PA4 |
| 36 | PA1, PA3 and PA5 |
| 37 | PA1, PA4 and PA5 |
| 38 | PA2, PA3 and PA4 |
| 39 | PA2, PA3 and PA5 |
| 40 | PA2, PA4 and PA5 |
| 41 | PA3, PA3 and PA5 |
| 42 | PA0, PA1, PA2 and PA3 |
| 43 | PA0, PA1, PA2 and PA4 |
| 44 | PA0, PA1, PA2 and PA5 |
| 45 | PA0, PA1, PA3 and PA4 |
| 46 | PA0, PA1, PA3 and PA5 |
| 47 | PA0, PA1, PA4 and PA5 |
| 48 | PA0, PA2, PA3 and PA4 |
I/O interfaces in this table represent that the state of these interfaces now is " 0 ", because at least 1 place value is in n
The state that certain key is pressed is represented when " 0 "（By respective diode low level is pulled into by I/O lines are input into）, so 6 I/O interfaces
Different conditions are that 0 combination can just represent 26- a kind of state, has used preceding 48 kinds of combinations, because this keyboard is only devised at this
48 buttons.
In Fig. 2, a blockage in each adapter and figure（It is shown in dotted line, label 20）Switches set it is corresponding, can
To find out that each adapter is a 64-6 line binary coder circuit, share 48 pressures and touch switch（Contact）, actually
48 codings are used, 48-6 line binary coding circuits can be expressed as, each adapter uses 6 diodes, and each two
The equal anode of pole pipe passes through pull-up resistor（R1, R2 ..., as other embodiment, it would however also be possible to employ pull down resistor connects low electricity
It is flat）High level is connect, negative electrode is grounded by the respective lines in the binary coding circuit.In each adapter, by contact
The contact circuit of composition, the purpose is to realize 48-6 line binary codings, this coding circuit belongs to routine techniques, and upper table
Give correspondence key assignments to explain, its annexation is no longer specifically described herein.
Each adapter is can be seen that from above circuit identical, it is not necessary to as 201310087950.8 files are public
A large amount of I/O resources are taken as opening, the real miniaturization of adapter, modularization is realized, is economized on resources and cost.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, button of the invention includes button cap 3 to press-key structure of the invention
With button lid 4, button lid 4 is located on button cap 3, and button cap 3 is erected on keyboard shell 1, and the lower section of button lid 4 is provided with for pressing
The pressure contact block of the adapter is touched, i.e., sheet metal connecting pole 8 and pressure touch panel 7, have key on keyboard shell 1 immediately below each button in figure
Shell sheet metal connecting pole socket 19.Together with being hooked in, button lid 4 and sheet metal connect position-limited rack 12 on button cap 3 and keyboard shell 1
It is fixed one to connect post 8, and sheet metal connecting pole 8 fixes a pressure touch panel 7 below.Clip 9 under button cap 3 is with elasticity
Material, as soft plastic is made, pin below is very sharp, when assemblying keyboard, slightly will firmly need to only be pressed under button cap 3, fixed
Button 9 will be hooked on position-limited rack 12 because of its elasticity, hooked mutually with position-limited rack 12, it is to avoid when user unclamps button, by
Button cap 3 is set to depart from keyboard shell 1 in the elastic force of spring.Diagram distance 16,17,18 be equal, ensured with this button cap 3 by
Touch panel 7 will be pressed when lower can be contacted with key assignments circuit 2.Button cap 3 is provided with opening 14, sheet metal during for being installed with button lid 4
Connecting pole 8 is inserted.Secondly also have 4 key lid fulcrum sockets 15 on button cap, be when button lid 4 is attached on button cap 3 in order to
, need to be inserted into key lid fulcrum 5 in key lid fulcrum socket 15 by fixed button lid 4.When user needs to remove on button lid 4, can be with
Button 6 is pulled using the key lid on button lid 4 to remove button lid 4.When button cap 3 is pressed, spring 13 shrinks, under button lid 4
Sheet metal connecting pole 8 carry pressure touch panel 7 and move down, the grade of sheet metal 10 or 11 on pressure touch panel 7 can be made to pass through key shell sheet metal
Connecting pole socket 19 and the contact 20 on key assignments circuit 2 etc. contact, and produce key value information.Relative to the metal for being in center
Piece connecting pole 8, spring 13 is arranged on around button lid 4, and spring 13 is fixed between button lid 4 and position-limited rack 12.When pressing,
Button lid 4 and the one of button cap 3 are moved, and compression spring 13, the relative limit frame 12 of button cap 3 is moved downward, and when upspringing, returns to figure
Show position.
When in use, the key arrangement mode that user can like according to oneself, pulls open key lid and pulls button 6 by button lid with hand
4 remove, and are then installed to again on the button cap 3 of other positions.Key lid fulcrum 5 need to be aligned the key lid on button cap 3 during installation
Fulcrum socket 15, then under by can button lid 4 be fixed on button cap 3.Due to button lid 4（Pressure touch panel 7）Carry key
Value information, using keyboard typing when, though button lid 4 be movable by the user where, as long as be arranged on any button cap on, use
When family pushes button, the sheet metal on the pressure touch panel 7 of the bottom of sheet metal connecting pole 8（Such as 10,11 or other gold for not sectioning out
Category piece）Can be with the contact in the key assignments circuit 2 in keyboard shell 1（Such as contact 20）It is in contact, makes circuit turn-on, different key metal
Sheet metal position on the pressure touch panel 7 of the bottom of piece connecting pole 8 is different, and the circuit immediately below each button is identical, therefore, because of pressure
Different can the generation in sheet metal position on touch panel 7 identifies corresponding key assignments with button lid 4.That is, in keyboard shell 1
Contact position on circuit board under each button on key assignments circuit is identical, although the sheet metal position of each button is different,
No matter button moves on to position at which, all without the transmission of influence key assignments.When user unclamps hand, the resilience of spring 13, button entirety
Upper bullet, but because the reason for 3 times soft plastic clips 9 of button position-limited rack 12 and button cap, button cap 3 will not be allowed to depart from keyboard
Shell 1.
Such as A keys and B keys, it is assumed that the position of the sheet metal under 10, B keys under A keys in the position of sheet metal such as Fig. 7 is as schemed
In 8 11, the position of sheet metal is different under the two buttons, and corresponding circuit has been immediately below each button in keyboard shell 1
Exactly the same, all correspond to several contacts.So, when A keys are pressed, the sheet metal of position 10 will be corresponding with underface
Contact, produce key value information；When B keys are pressed, the sheet metal of position 11 will connect with corresponding contact immediately below it
Touch, produce and the entirely different B key key value informations of A keys.Most of all, each button optionally can remove its button lid
It is installed on other any one button caps without changing its key value information.Therefore, the present invention is unlike the keyboard in background technology
Equally needing full line to move could change key mapping, only need to remove or install button lid, simple to operate, easy to use and fast
It is prompt.
A kind of specific embodiment is presented above, but the invention is not limited in described implementation method.This hair
Bright basic ideas are such scheme, and for those of ordinary skill in the art, teaching of the invention is designed various
The circuit structure of deformation simultaneously need not spend creative work.Without departing from the principles and spirit of the present invention to implementing
Change, modification, replacement and the deformation that mode is carried out are still fallen within protection scope of the present invention.
Claims (5)
1. a kind of computer keyboard of restructural button, it is characterised in that including keyboard substrate, button and corresponding with number of keys
Adapter, each adapter is a key assignments circuit comprising all key value informations, it is characterised in that the key assignments circuit
To connect the binary coding circuit of single-chip microcomputer, the binary coding circuit includes pullup/pulldown resistance, diode and is no less than
The contact of number of keys；Keyboard includes button cap and button lid, and button cover buckle is located on button cap, and button cap is erected at keyboard shell
On, button lid lower section is provided with the pressure contact block for pressing the tactile adapter；Pressure contact block includes metal connecting pole (8) and pressure touch panel
(7), button lid and metal connecting pole (8) are fixed one, and sheet metal connecting pole (8) is fixed pressure touch panel (7), led to below
Cross the projection for extending radially outwards that clip (9) lower end is adapted with the turn edge of position-limited rack (12) upper end, make button cap with
Position-limited rack connects structure together, and button cap is provided with the opening (14) for the insertion of sheet metal connecting pole, and button is covered and is provided with key lid
Fulcrum (5), is additionally provided with button fulcrum socket (15) for insert key lid fulcrum (5) on button cap, the button is covered and also set
It is equipped with the key cover plate for button lid to be removed from button cap to buckle (6), is connected by spring between button lid and keyboard shell
Connect, spring is arranged on around button lid and is fixed between button lid (4) and position-limited rack (12)；When by bond reconstruction, only will be by
The button lid of key is removed, and the key lid fulcrum for covering button is directed at the key lid fulcrum socket on other button caps, and lower pressing can
Button lid is fixed on button cap, and the pressure contact block for carrying key value information is installed to the button cap of other positions with button lid
On.
2. the computer keyboard of a kind of restructural button according to claim 1, it is characterised in that the number of keys expires
Sufficient M is less than or equal to 2n -1, and n is the quantity of the binary coding circuit connection single-chip processor i/o mouthful.
3. a kind of computer keyboard of restructural button according to claim 2, it is characterised in that described each adapter
Number of diodes be equal to n.
4. the computer keyboard of a kind of restructural button according to claim 3, it is characterised in that each adapter shares n
Individual pullup/pulldown resistance.
5. a kind of computer keyboard of restructural button according to claim 1, it is characterised in that the pressure contact block lower section
A sheet metal is provided with, the sheet metal position uniquely corresponds to the marking keys on corresponding button cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310610411.8A CN103605428B (en) | 2013-11-26 | 2013-11-26 | A kind of computer keyboard of restructural button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310610411.8A CN103605428B (en) | 2013-11-26 | 2013-11-26 | A kind of computer keyboard of restructural button |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103605428A CN103605428A (en) | 2014-02-26 |
| CN103605428B true CN103605428B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310610411.8A Expired - Fee Related CN103605428B (en) | 2013-11-26 | 2013-11-26 | A kind of computer keyboard of restructural button |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6688270B2 (en) * | 2017-10-18 | 2020-04-28 | Ｎｅｃパーソナルコンピュータ株式会社 | Keyboard device and electronic device |
| CN108509062A (en) * | 2018-04-10 | 2018-09-07 | 西京学院 | A kind of key board unit and knowledge key method based on priority encoder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5668358A (en) * | 1994-07-05 | 1997-09-16 | Ultimate Rechnology Corporation | Reconfigurable keyboard |
| US6727829B2 (en) * | 2001-05-21 | 2004-04-27 | Hewlett-Packard Development Company, L.P. | Keyboard with integrated pointer control function |
| CN201413497Y (en) * | 2009-05-20 | 2010-02-24 | 李兵 | Flexible keyboard with touch screen mouse |
| CN103176619A (en) * | 2013-03-19 | 2013-06-26 | 河南师范大学 | Computer keyboard with movable keys |
-
2013
- 2013-11-26 CN CN201310610411.8A patent/CN103605428B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5668358A (en) * | 1994-07-05 | 1997-09-16 | Ultimate Rechnology Corporation | Reconfigurable keyboard |
| US6727829B2 (en) * | 2001-05-21 | 2004-04-27 | Hewlett-Packard Development Company, L.P. | Keyboard with integrated pointer control function |
| CN201413497Y (en) * | 2009-05-20 | 2010-02-24 | 李兵 | Flexible keyboard with touch screen mouse |
| CN103176619A (en) * | 2013-03-19 | 2013-06-26 | 河南师范大学 | Computer keyboard with movable keys |
Non-Patent Citations (2)
| Title |
|---|
| 一种独立式键盘电路及其中断程序设计;高培光;《计算机测量与控制》;20080325;第16卷(第3期);第373-375页 * |
| 全组合式键盘电路构造方法;靳栀等;《西南交通大学学报》;20041228;第39卷(第6期);第1节、第2节，图1 * |
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| Publication number | Publication date |
|---|---|
| CN103605428A (en) | 2014-02-26 |
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Granted publication date: 20170620 Termination date: 20201126 |