CN109243887A - A kind of waterproof key switch - Google Patents
A kind of waterproof key switch Download PDFInfo
- Publication number
- CN109243887A CN109243887A CN201811272870.9A CN201811272870A CN109243887A CN 109243887 A CN109243887 A CN 109243887A CN 201811272870 A CN201811272870 A CN 201811272870A CN 109243887 A CN109243887 A CN 109243887A
- Authority
- CN
- China
- Prior art keywords
- pedestal
- electrically conducting
- dome
- conducting contact
- elastic sheet
- 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.)
- Pending
Links
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
- H01H13/02—Details
- H01H13/04—Cases; Covers
- H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
-
- 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
- H01H13/12—Movable parts; Contacts mounted thereon
- H01H13/14—Operating parts, e.g. push-button
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention discloses a kind of waterproof key switchs, including the pedestal being molded using insulating materials, conduct piece A and conduct piece B, Dome electroconductive elastic sheet and water-proof rubber sleeve, the upper surface of pedestal is equipped with annular convex platform, the upper surface of pedestal is equipped with locating slot, conduct piece A includes electrically conducting contact A, the pin A for being moulded in the intracorporal conductive part A of seat and being connected on conductive part A, conduct piece B includes electrically conducting contact B, the pin B for being moulded in the intracorporal conductive part B of seat and being connected on conductive part B, water-proof rubber sleeve hermetically connects on pedestal and annular convex platform is contained in water-proof rubber sleeve, seal chamber is formed between water-proof rubber sleeve and pedestal, Dome electroconductive elastic sheet is set in seal chamber, the outer edge and electrically conducting contact A of Dome electroconductive elastic sheet are in electrical contact, electrically conducting contact B is equipped with holding tank；Sealing performance is good, and holding tank can prevent the phenomenon that poor contact occur between Dome electroconductive elastic sheet and electrically conducting contact B, reduces the probability of button malfunction.
Description
[technical field]
The present invention relates to key switch, specifically a kind of waterproof key switch.
[background technique]
With the development of science and technology the structure design of consumer electrical product becomes increasingly complex and consumer produces electronics
The use environment requirement of product is increasingly harsh, therefore the requirement for waterproofness is also higher and higher, how to reduce these as much as possible
Electronic product also just seems important increasingly because exposing to the open air in the environment full of aqueous vapor or the be subjected to damage of infiltration accidentally；In addition,
Process for waterproof key switch in encapsulation may be such that the tiny particles contents such as dust enter in seal chamber, the key of long-time service
Because internal abrasion also can the tiny particulate matter of output, these tiny particulate matters can lead to Dome electroconductive elastic sheet and conductive contact
Portion's poor contact, the phenomenon that causing button malfunction.
The present invention is to research and propose in view of the deficiencies of the prior art.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of waterproof key switch, can solve thin in waterproof key switch
Caused by small particle the phenomenon that button malfunction.
In order to solve the above technical problems, a kind of waterproof key switch of the invention, including be molded using insulating materials
Pedestal, be moulded in the intracorporal conduct piece A of seat and conduct piece B, Dome electroconductive elastic sheet and water-proof rubber sleeve, the upper table of the pedestal
Face is equipped with locating slot, the conduct piece A packet equipped with annular convex platform, the upper surface of the pedestal and the inside for being located at annular convex platform
Containing the electrically conducting contact A being arranged on annular convex platform, it is moulded in the intracorporal conductive part A of seat and is connected to drawing on conductive part A
Foot A, the conduct piece B include the electrically conducting contact B being arranged in locating slot, are moulded in the intracorporal conductive part B of seat and company
The pin B on conductive part B is met, the water-proof rubber sleeve hermetically connects on pedestal and annular convex platform is contained in water-proof rubber sleeve
It is interior, seal chamber is formed between the water-proof rubber sleeve and pedestal, the Dome electroconductive elastic sheet is set in seal chamber, described
The outer edge of Dome electroconductive elastic sheet and electrically conducting contact A are in electrical contact, when original state, Dome electroconductive elastic sheet and electrically conducting contact B
Separation contacts the middle part of Dome electroconductive elastic sheet with electrically conducting contact B when pressing water-proof rubber sleeve, can be by conduct piece A and conduction
Part B conducting, the electrically conducting contact B are equipped with for accommodating tiny particles content to prevent Dome electroconductive elastic sheet and conductive contact
The holding tank of portion's B poor contact.
A kind of waterproof key switch as described above, it is characterised in that side inclination of the holding tank with respect to pedestal is set
It sets.
A kind of waterproof key switch as described above, it is characterised in that inclining between the side of the holding tank and pedestal
Angle is 45 °.
A kind of waterproof key switch as described above, the water-proof rubber sleeve be equipped with for drive Dome electroconductive elastic sheet with
The protrusion of electrically conducting contact B contact.
A kind of waterproof key switch as described above, the electrically conducting contact A is " U "-shaped and annular convex platform is arranged in
Upper surface.
A kind of waterproof key switch as described above, sets that there are two pin A, the conductive part B on the conductive part A
On set there are two pin B.
A kind of waterproof key switch as described above, the interior Dome being stacked equipped with two panels or three pieces of the seal chamber
Electroconductive elastic sheet.
Compared with prior art, the present invention has the advantage that
1, the present invention is by the way that conduct piece A and conduct piece B to be moulded in pedestal, and passes through water-proof rubber sleeve for electrically conducting contact
A and electrically conducting contact B are sealed in seal chamber, can play good sealing performance, can be connect to electrically conducting contact A and conduction
Contact portion B carries out good protection, and structure is simple, and manufacturing cost is cheap.
2, holding tank for accommodating tiny particles content is equipped on electrically conducting contact B, can prevent Dome electroconductive elastic sheet with
There is the phenomenon that poor contact between electrically conducting contact B, reduces the probability of button malfunction.
[Detailed description of the invention]
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is exploded view of the invention；
Fig. 3 is partial exploded view of the invention；
Fig. 4 is top view of the invention；
Fig. 5 is the cross-sectional view in Fig. 4 along the direction A-A.
[specific embodiment]
It elaborates with reference to the accompanying drawing to embodiments of the present invention.
As shown in Figures 1 to 5, a kind of waterproof key switch of the present embodiment, including what is be molded using insulating materials
Pedestal 1, the conduct piece A2 being moulded in pedestal 1 and conduct piece B3, Dome electroconductive elastic sheet 4 and water-proof rubber sleeve 5, the pedestal 1
Upper surface be equipped with annular convex platform 11, the upper surface of the pedestal 1 and be located at annular convex platform 11 inside be equipped with locating slot 12, institute
The conduct piece A2 stated include the electrically conducting contact A21 being arranged on annular convex platform 11, the conductive part A22 that is moulded in pedestal 1 with
And the pin A23, the conduct piece B3 being connected on conductive part A22 include the electrically conducting contact being arranged in locating slot 12
B31, the conductive part B32 being moulded in pedestal 1 and the pin B33 being connected on conductive part B32, the water-proof rubber sleeve 5 are close
It is contained in water-proof rubber sleeve 5 on feud connection pedestal 1 and by annular convex platform 11, is formed between the water-proof rubber sleeve 5 and pedestal 1
There is the seal chamber 100 of good airproof performance, the Dome electroconductive elastic sheet 4 is set in seal chamber 100, the Dome electroconductive elastic sheet 4
Outer edge and electrically conducting contact A21 be in electrical contact, when original state, Dome electroconductive elastic sheet 4 is separated with electrically conducting contact B31, when
Pressing water-proof rubber sleeve 5 contacts the middle part of Dome electroconductive elastic sheet 4 with electrically conducting contact B31, can be by conduct piece A2 and conduct piece
B3 conducting, the electrically conducting contact B31 are equipped with for accommodating tiny particles content to prevent Dome electroconductive elastic sheet 4 and conduction from connecing
The holding tank 311 of contact portion B31 poor contact.The present invention is passed through anti-by the way that conduct piece A and conduct piece B to be moulded in pedestal
Electrically conducting contact A and electrically conducting contact B are sealed in seal chamber by gelatine sleeve, can play good sealing performance, can be right
Electrically conducting contact A and electrically conducting contact B carries out good protection, and structure is simple, and manufacturing cost is cheap；Furthermore it is connect in conduction
Contact portion B is equipped with the holding tank for accommodating tiny particles content, can prevent from occurring between Dome electroconductive elastic sheet and electrically conducting contact B
The phenomenon that poor contact, reduces the probability of button malfunction.
In order to improve electrical contacts B to the carrying capacity of tiny particles content, set that there are two holding tanks on electrically conducting contact B31
311, two holding tanks 311 are mutually perpendicular to.
Holding tank 311 is obliquely installed with respect to the side of pedestal 1, preferably the inclination angle between holding tank 311 and the side of pedestal 1
It is 45 °.
Dome electroconductive elastic sheet is pressed by water-proof rubber sleeve 5 for convenience, water-proof rubber sleeve 5 is equipped with for driving Dome conductive
The protrusion 51 that elastic slice 4 is contacted with electrically conducting contact B31, water-proof rubber sleeve 5 is generally using elasticity is good and water-resistant material is made.
In order to improve the contact area of electrically conducting contact A Yu Dome electroconductive elastic sheet, electrically conducting contact A21 is " U "-shaped and sets
It sets in the upper surface of annular convex platform 11.
It in order to enable the invention to more securely weld in the circuit board, sets that there are two pin A23 on conductive part A22, leads
Pin B33 there are two being set on electric portion B32.
Because Dome electroconductive elastic sheet is than relatively thin, the time long situation for being easy to appear elastic force deficiency, seal chamber 100 is interior to be equipped with two panels
Or the Dome electroconductive elastic sheet 4 that three pieces are stacked.
Claims (8)
1. a kind of waterproof key switch, it is characterised in that including be molded using insulating materials pedestal (1), be moulded in pedestal
(1) conduct piece A (2) and conduct piece B (3), Dome electroconductive elastic sheet (4) and water-proof rubber sleeve (5) in, the pedestal (1) it is upper
Surface is equipped with locating slot equipped with annular convex platform (11), the upper surface of the pedestal (1) and the inside for being located at annular convex platform (11)
(12), the conduct piece A (2) includes the electrically conducting contact A (21) being arranged on annular convex platform (11), is moulded in pedestal (1)
Interior conductive part A (22) and the pin A (23) being connected on conductive part A (22), the conduct piece B (3) include that setting exists
Electrically conducting contact B (31) in locating slot (12), the conductive part B (32) being moulded in pedestal (1) and it is connected to conductive part B
(32) the pin B (33) on, the water-proof rubber sleeve (5) hermetically connect on pedestal (1) and are contained in annular convex platform (11)
It in water-proof rubber sleeve (5), is formed with seal chamber (100) between the water-proof rubber sleeve (5) and pedestal (1), the Dome is conductive
Elastic slice (4) is set in seal chamber (100), and outer edge and electrically conducting contact A (21) electricity of the Dome electroconductive elastic sheet (4) connect
Touching, when original state, Dome electroconductive elastic sheet (4) is separated with electrically conducting contact B (31), leads Dome when pressing water-proof rubber sleeve (5)
The middle part of electric elastic slice (4) is contacted with electrically conducting contact B (31), conduct piece A (2) and conduct piece B (3) can be connected, described
Electrically conducting contact B (31) is equipped with for accommodating tiny particles content to prevent Dome electroconductive elastic sheet (4) and electrically conducting contact B (31)
The holding tank (311) of poor contact.
2. a kind of waterproof key switch according to claim 1, it is characterised in that set on the electrically conducting contact B (31)
There are two holding tank (311), two holding tanks (311) are mutually perpendicular to.
3. a kind of waterproof key switch according to claim 2, it is characterised in that the holding tank (311) is with respect to pedestal
(1) side is obliquely installed.
4. a kind of waterproof key switch according to claim 3, it is characterised in that the holding tank (311) and pedestal
(1) the inclination angle between side is 45 °.
5. a kind of waterproof key switch according to claim 1, it is characterised in that the water-proof rubber sleeve (5), which is equipped with, to be used
In the protrusion (51) that driving Dome electroconductive elastic sheet (4) is contacted with electrically conducting contact B (31).
6. a kind of waterproof key switch according to claim 1, it is characterised in that the electrically conducting contact A (21) is in
" u "-shaped is simultaneously arranged in the upper surface of annular convex platform (11).
7. a kind of waterproof key switch according to claim 1, it is characterised in that the conductive part A (22) is equipped with two
A pin A (23), sets that there are two pin B (33) on the conductive part B (32).
8. a kind of waterproof key switch according to claim 1, it is characterised in that be equipped with two in the seal chamber (100)
The Dome electroconductive elastic sheet (4) that piece or three pieces are stacked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272870.9A CN109243887A (en) | 2018-10-30 | 2018-10-30 | A kind of waterproof key switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272870.9A CN109243887A (en) | 2018-10-30 | 2018-10-30 | A kind of waterproof key switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109243887A true CN109243887A (en) | 2019-01-18 |
Family
ID=65079063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811272870.9A Pending CN109243887A (en) | 2018-10-30 | 2018-10-30 | A kind of waterproof key switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243887A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3078354U (en) * | 2000-12-15 | 2001-07-10 | 新巨企業股▲ふん▼有限公司 | Key switch structure |
| CN201936781U (en) * | 2011-01-14 | 2011-08-17 | 百莹科技股份有限公司 | Key switch with improved structure |
| KR101301980B1 (en) * | 2012-03-29 | 2013-08-30 | 주식회사 스위치코리아 | Tact switches |
| CN203631385U (en) * | 2013-12-05 | 2014-06-04 | 顾星 | Waterproof switch |
| CN204884966U (en) * | 2015-07-22 | 2015-12-16 | 珠海市惟达电子有限公司 | Push switch |
| CN209104029U (en) * | 2018-10-30 | 2019-07-12 | 东莞市聚明电子科技有限公司 | A kind of waterproof key switch |
-
2018
- 2018-10-30 CN CN201811272870.9A patent/CN109243887A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3078354U (en) * | 2000-12-15 | 2001-07-10 | 新巨企業股▲ふん▼有限公司 | Key switch structure |
| CN201936781U (en) * | 2011-01-14 | 2011-08-17 | 百莹科技股份有限公司 | Key switch with improved structure |
| KR101301980B1 (en) * | 2012-03-29 | 2013-08-30 | 주식회사 스위치코리아 | Tact switches |
| CN203631385U (en) * | 2013-12-05 | 2014-06-04 | 顾星 | Waterproof switch |
| CN204884966U (en) * | 2015-07-22 | 2015-12-16 | 珠海市惟达电子有限公司 | Push switch |
| CN209104029U (en) * | 2018-10-30 | 2019-07-12 | 东莞市聚明电子科技有限公司 | A kind of waterproof key switch |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination |