CN201780915U - Metal dome-shaped switch assembly for keyboard - Google Patents
Metal dome-shaped switch assembly for keyboard Download PDFInfo
- Publication number
- CN201780915U CN201780915U CN2010202523824U CN201020252382U CN201780915U CN 201780915 U CN201780915 U CN 201780915U CN 2010202523824 U CN2010202523824 U CN 2010202523824U CN 201020252382 U CN201020252382 U CN 201020252382U CN 201780915 U CN201780915 U CN 201780915U
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- metal dome
- dome shape
- shape switch
- 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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
- H01H13/704—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by the layers, e.g. by their material or structure
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/032—Operating force
- H01H2227/034—Regulation of operating force
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
Abstract
The utility model relates to a metal dome-shaped switch assembly for a keyboard, through which a thinner keyboard for a mobile phone can be manufactured, the procedure is simplified, and the production efficiency is improved. The metal dome-shaped switch assembly for the keyboard comprises a printed circuit board, a metal dome-shaped switch, a light guide plate and a pressurizing bulge, wherein the printed circuit board is arranged between an upper casing and a lower casing, and a connection terminal is formed on the printed circuit board; the metal dome-shaped switch serves a switching function and is arranged on the printed circuit board; the light guide plate is arranged on the metal dome-shaped switch and is used for diverging an incident light to a surface; the pressurizing bulge is formed on the light guide plate; a pressurizing force for a pressing operation is centralized at the central part of the metal dome-shaped switch through the pressurizing bulge; the pressurizing bulge comprises a movable main body and a connecting part which are formed by cutting the light guide plate; the movable main body can independently move relative to the light guide plate; and one side of the movable main body is connected with the light guide plate through the connecting part.
Description
Technical field
The utility model relates to a kind of keyboard metal dome shape switch assembly, more particularly, relate to a kind of keyboard metal dome shape switch assembly, wherein, be used for pressing force concentrate on metal dome shape switch central portion so that metal dome shape switch can to produce the formation operation of pressurization projection of normal depression strain very easy, therefore can boost productivity, and the integral thickness that metal dome shape switch assembly reduces is the protrusion length of pressurization projection, therefore can make the integral thickness of keyboard thinner.
Background technology
In general, be used for mobile phone etc. and carry with the keyboard of terminating machine as depicted in figs. 1 and 2, comprising: printed circuit board (PCB) 3, this printed circuit board (PCB) 3 are arranged in upper body 1 and the lower case 2, and are formed with splicing ear 3a above the described printed circuit board (PCB) 3; Metal dome shape switch 4, this metal dome shape switch 4 is arranged on the described printed circuit board (PCB) 3, by optionally being connected with splicing ear 3a or disconnecting and realize switching function; Dividing plate 5, this dividing plate 5 is positioned on the described printed circuit board (PCB) 3, is used to be provided with metal dome shape switch 4; Adhesive tape 6, this adhesive tape 6 are used for fixing metal dome shape switch 4 attached on the dividing plate 5; Light guide plate 7, this light guide plate 7 are positioned on the described metal dome shape switch 4, can the divergence of beam of illustrated lamp incident never is extremely surperficial; Button portion 9, this button portion 9 are arranged on the upper body 1 on the described light guide plate 7, to 4 pressurizations of metal dome shape switch so that it produces strain.
Thereby as shown in Figure 3, when the user pushed button the operation that portion 9 decontrols again, metal dome shape switch 4 apex that are made of the metallic plate of dome shape produced the strain of depression, disconnected the realization switching function thereby contact with splicing ear 3a again.
In the prior art, as shown in Figure 2, the outstanding pressurization projection 8 that forms the bottom surface of the light guide plate 7 in metal dome shape switch 4 tops on the throne, this pressurization projection 8 makes the pressure that pressing operation produced of button portion 9 focus on the apex of metal dome shape switch 4, and to exerting pressure in fact, thereby make the metal dome shape switch 4 normal strains that produce, correctly realize switching function, also can improve and click feel when carrying out the pressing operation of button portion 9 simultaneously with the operation sound of " coffee of rattling away ".
But, described existing pressurization projection 8 is the extra parts of thermal welding in light guide plate 7 bottom surfaces, are the numerous and diverse main causes that reduce productivity ratio of operation by thermal welding with a plurality of pressurization projection 8 modes that are fixed on light guide plate 7 bottom surfaces, and the whole thickness that increases of metal dome shape switch assembly is the length from the pressurization projection 8 of the surface protrusion of light guide plate 7, therefore has the thinner problem that the thickness of keypad for cellular phone can't be made.
The utility model content
The utility model is studied at above-mentioned existing issue, its purpose is for providing keyboard metal dome shape switch assembly, on the light guide plate that is positioned at metal dome shape switch top, be formed for the pressing force of button portion is concentrated on the pressurization projection of the central portion of metal dome shape switch, and this pressurization projection can not protruded and the integral thickness of minimizing metal dome shape switch assembly from the surface of light guide plate, that thereby keypad for cellular phone can be made is thinner, and finish the operation that forms the pressurization projection in light guide plate by the cutting processing of stamping machine, thereby simplified operation, improved productivity.
In order to achieve the above object, the utility model provides a kind of keyboard metal dome shape switch assembly, this keyboard comprises with metal dome shape switch assembly: printed circuit board (PCB), described printed circuit board (PCB) is arranged between upper body and the lower case, is formed with splicing ear on described printed circuit board (PCB); Metal dome shape switch, described metal dome shape switch is arranged on the described printed circuit board (PCB), by optionally being connected with splicing ear or disconnecting to carry out switching function; Light guide plate, described light guide plate are arranged on the described metal dome shape switch, and the divergence of beam of incident is extremely surperficial; And the pressurization projection, described pressurization projection is arranged on the described light guide plate, will concentrate on the central portion of metal dome shape switch based on the plus-pressure of push; It is characterized in that described pressurization projection comprises: movable main part, described movable main part cutting light guide plate forms, and this movable main part can self-movement with respect to light guide plate; Connecting portion, described connecting portion cutting light guide plate forms, and a side of described movable main part is connected with light guide plate.
The utility model also provides keyboard with metal dome shape switch assembly, it is characterized in that, at the opposite side of other described connecting portion connecting portion is set also, and movable main part can be connected with light guide plate in both sides.
The utility model also provides keyboard with metal dome shape switch assembly, it is characterized in that, between the movable main part of described pressurization projection and light guide plate, form with connecting portion be connected the suitable spatial portion of length.
Keyboard of the present utility model metal dome shape switch assembly with above-mentioned feature, by stamping machine the light guide plate that is positioned at metal dome shape switch top is carried out cutting processing to form the pressurization projection, this pressurization projection is when carrying out the pressing operation of button portion, pressing force is conveyed to the central portion of metal dome shape switch, make central portion produce the strain of depression downwards, therefore the operation that forms the pressurization projection becomes very simple, improved productivity ratio, in addition, when the pressurization projection is in non operating state, itself and light guide plate are positioned on the same horizontal line, promptly can not protrude from the surface of light guide plate, therefore the whole thickness that reduces of metal dome shape switch assembly is the protrusion length of existing pressurization projection, thereby makes that the keyboard of making is thinner.
Description of drawings
Fig. 1 is the vertical view of the major part of existing keyboard.
Fig. 2 is the A-A line cutaway view of the existing keyboard of expression with Fig. 1 of metal dome shape switch assembly.
Fig. 3 is the cutaway view of the existing keyboard of expression with the operating state of metal dome shape switch in the metal dome shape switch assembly.
Fig. 4 a and Fig. 4 b are the cutaway view of keyboard of the present utility model with metal dome shape switch assembly.
Fig. 5 a to Fig. 5 d is illustrated in the vertical view of keyboard of the present utility model with the various execution modes of the pressurization projection that forms on the light guide plate in the metal dome shape switch assembly.
Reference numeral
13: printed circuit board (PCB) 13a: splicing ear
13b: splicing ear 14: metal dome shape switch
17: light guide plate 19: button portion
20: pressurization projection 21: cutting part
22: movable main part 23: connecting portion
24: cutting part 25: spatial portion
Embodiment
Below, with reference to the accompanying drawings preferred implementation of the present utility model is elaborated.
Fig. 4 a and Fig. 4 b are the cutaway view of expression the utility model keyboard with the operating state of metal dome shape switch assembly, and Fig. 5 a to Fig. 5 d is the vertical view that is illustrated in the various execution modes that form the pressurization projection on the light guide plate.As shown in the figure, keyboard of the present utility model comprises with metal dome shape switch assembly: printed circuit board (PCB) 13, this printed circuit board (PCB) 13 are arranged in upper body 11 and the lower case 12, are formed with splicing ear 13a and 13b on described printed circuit board (PCB) 13; Metal dome shape switch 14, this metal dome shape switch 14 is arranged on the described printed circuit board (PCB) 13, the periphery of described metal dome shape switch 14 is fixedlyed connected with the splicing ear 13b in the outside, and the central portion of described metal dome shape switch 14 is by optionally being connected with the splicing ear 13a of central authorities or disconnecting to carry out switching function; Dividing plate 15, this dividing plate 15 is arranged on the described printed circuit board (PCB) 13, is used to form metal dome shape switch 14; Adhesive tape 16, this adhesive tape 16 are used for fixing metal dome shape switch 14 attached on the described dividing plate 15; Light guide plate 17, this light guide plate 17 are arranged on the described metal dome shape switch 14, will be dissipated into the surface from the light of lamp (not shown) incident; Button portion 19, this button portion 19 are arranged on the upper body 11 on the described light guide plate 17, are used for pressurized metal dome shape switch 14 and make it produce strain.
On the one hand, described light guide plate 17 generally with optical characteristics preferably resinous material make, Merlon (Polycarbonate for example, PC), and polymethyl methacrylate (Poly Methyl Metharylate, PMMA), PETG (Polyethylene Terephthalate, PET), form jog in its bottom surface, will be distributed to uper side surface from the light of lamp (not shown) incident that is arranged on a side.
In addition, on described light guide plate 17, be formed with pressurization projection 20, be used for the pressing operation of button portion 19 and the plus-pressure that produces concentrates on the central portion of metal dome shape switch 14, described pressurization projection 20 is to form by cutting light guide plate 17, and separate with light guide plate 17 parts, therefore light guide plate 17 can move up and down independently relatively.
That is, shown in Fig. 5 a, the cutting part 21 in light guide plate 17 formation " C " shapes forms thereby movable main part 22 is separated with light guide plate 17 parts; In addition, form the cutting part 24 of "=" shape continuously from the two ends of described cutting part 21, make a side of described movable main part 22 be connected with light guide plate 17 by connecting portion 23 with preseting length.Because resin material manufacturings such as described light guide plate 17 usefulness PC, PMMA or PET form, and therefore, by the cutting processing of stamping machine, can easily form described cutting part 21 and cutting part 24.
In addition, as another execution mode of pressurization projection 20, shown in Fig. 5 b, connecting portion 23 is set again at the opposite side of described connecting portion 23, movable main part 22 can be connected with light guide plate 17 in both sides, and therefore pressurization projection 20 can more stably move up and down with respect to light guide plate 17.In addition, shown in Fig. 5 c and Fig. 5 d, between the movable main part 22 of pressurization projection 20 and light guide plate 17, form with connecting portion 23 be connected the suitable spatial portion of length 25, thus, by described spatial portion 25, increased the spacing of light guide plate 17 and movable main part 22, thereby needn't worry to be subjected to the interference of light guide plate 17, self-movement more freely at the movable main part 22 that the plus-pressure of button portion 19 is made time spent pressurization projection 20.
Based on this structure, shown in Fig. 4 a and Fig. 4 b, the action that pushes button portion 9 and decontrol by the user, the central portion of the metal dome shape switch 14 that is made of the metallic plate of dome shape produces the strain of depression, be connected with splicing ear 13a or disconnect, thereby realized switching function.
That is, the user is for the switching manipulation portion 19 that pushes button, and is pressurized by the pressurization projection 20 that the light guide plate 17 of synthetic resin material forms, and descends towards the direction of pressing.At this moment, the movable main part 22 cutting light guide plate 17 of pressurization projection 20, light guide plate 17 can move up and down relatively, so connecting portion 23 is when producing flexural deformations, and the movable main part 22 that has only pressurization projection 20 protrudes and descends from the same horizontal line of light guide plate 17.
Thus, the plus-pressure that pressurization projection 20 can produce the pressing operation of button portion 19 concentrates on the central portion of metal dome shape switch 14 and transmits, because the central portion of metal dome shape switch 14 can produce the strain of normal depression, therefore can correctly carry out the switching function of metal dome shape switch 14, in the pressing operation of button portion 19, keep the good click feel of " coffee of rattling away " simultaneously.
On the other hand, shown in Fig. 4 b, push button under the state of portion 19, remove pressing force, then the central portion of the metal dome shape switch 14 that is made of metallic plate can restore because of the elastic restoring force of oneself, the movable main part 22 and the connecting portion 23 of therefore pressurization projection 20 also can restore to the state shown in Fig. 4 a, are positioned at again on the horizontal line identical with light guide plate 17.
Identical therewith, pressurization projection 20 of the present utility model forms by cutting light guide plate 17, be positioned on the identical horizontal line with light guide plate 17, therefore, protrude the pressurization projection that is formed on bottom surface of light guide plate compared to existing technology, the whole height that metal dome shape switch assembly reduces is the protrusion length of pressurization projection, thus keypad for cellular phone can be made thinner.
And, pressurization projection 20 of the present utility model is to form by using stamping machine that light guide plate 17 is implemented cutting processing, compare by other parts thermal welding is formed the protruding existing operation of pressurization at bottom surface of light guide plate, more easy in the making, improved productivity ratio.
More than, it only is the explanation of carrying out at preferred implementation of the present utility model, protection range of the present utility model should not be defined in above-mentioned execution mode, and in the protection range of technological thought of the present utility model and utility model, those skilled in the art can change, changes or replace; And this execution mode all belongs to protection range of the present utility model.
Claims (3)
1. a keyboard is with metal dome shape switch assembly, and this keyboard comprises with metal dome shape switch assembly: printed circuit board (PCB), this printed circuit board (PCB) are arranged in upper body and the lower case, are formed with splicing ear on described printed circuit board (PCB); Metal dome shape switch, this metal dome shape switch is arranged on the described printed circuit board (PCB), by optionally being connected with described splicing ear or disconnecting and carry out switching function; Light guide plate, this light guide plate are arranged on the top of described metal dome shape switch, and the light of incident is dissipated into the surface; And the pressurization projection, this pressurization projection is arranged on the described light guide plate, will concentrate on the central portion of metal dome shape switch based on the plus-pressure of push;
It is characterized in that described pressurization projection comprises: movable main part, this movable main part cutting light guide plate forms, and this movable main part can self-movement with respect to described light guide plate; Connecting portion, this connecting portion cutting light guide plate forms, and a side of described movable main part is connected with light guide plate.
2. keyboard according to claim 1 is characterized in that with metal dome shape switch assembly, also is provided with connecting portion at the opposite side of described connecting portion, so that described movable main part can be connected with light guide plate in both sides.
3. keyboard according to claim 1 and 2 is characterized in that with metal dome shape switch assembly, between the movable main part of described pressurization projection and light guide plate, be formed with described connecting portion be connected the suitable spatial portion of length.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020090016046U KR200453797Y1 (en) | 2009-12-10 | 2009-12-10 | Metal dome switch assembly for keypad |
| KR20-2009-0016046 | 2009-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201780915U true CN201780915U (en) | 2011-03-30 |
Family
ID=43794120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202523824U Expired - Fee Related CN201780915U (en) | 2009-12-10 | 2010-07-02 | Metal dome-shaped switch assembly for keyboard |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200453797Y1 (en) |
| CN (1) | CN201780915U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444426A (en) * | 2019-09-03 | 2019-11-12 | 苏州斯普兰蒂电子有限公司 | The simple waterproofing membrane switch of structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100815181B1 (en) | 2007-06-08 | 2008-03-19 | 주)두성하이텍 | Keypad manufacturing method using plastic optical sheet for cellular phone |
| JP2009205885A (en) | 2008-02-27 | 2009-09-10 | Sumitomo Electric Printed Circuit Inc | Flexible printed wiring board with fixed contact for switching, input module, and portable apparatus |
-
2009
- 2009-12-10 KR KR2020090016046U patent/KR200453797Y1/en not_active IP Right Cessation
-
2010
- 2010-07-02 CN CN2010202523824U patent/CN201780915U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR200453797Y1 (en) | 2011-05-27 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20130702 |