CN104966634A - Button switch dustproofing structure - Google Patents
Button switch dustproofing structure Download PDFInfo
- Publication number
- CN104966634A CN104966634A CN201510391381.5A CN201510391381A CN104966634A CN 104966634 A CN104966634 A CN 104966634A CN 201510391381 A CN201510391381 A CN 201510391381A CN 104966634 A CN104966634 A CN 104966634A
- Authority
- CN
- China
- Prior art keywords
- gap
- base
- upper cover
- sincere
- dust
- 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.)
- Granted
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
- H01H13/063—Casings hermetically closed by a diaphragm through which passes an actuating member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/002—Actuators integral with membrane
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention discloses a button switch dustproofing structure including an upper cover, a base, a plunger, a spring, a movable plate, and a fixed plate. The base is buckled to the upper cover to form an accommodating cavity, the fixed plate and the movable plate are arranged in the accommodating cavity enclosed by the upper cover and the base, the plunger is elastically and movably arranged in the accommodating cavity through the spring, the upper cover is provided with a slot for one end of the plunger to expose, the other end of the plunger acts on the contact part of the movable plate, the contact part of the movable plate is in contact connection or disengagement disconnection with the contact part of the fixed plate along with the moving of the plunger, the plunger includes a connecting block part and a button part that are integrally connected, the connecting block part is arranged under the button part and the upper cover, a first slit is arranged between the slot and the button part, and the connecting block part is provided with a first circular dustproofing groove in butt joint with the first slit in the extension direction corresponding to the first slit. The button switch dustproofing structure can guide dust only into the dustproofing groove to prevent the dust from entering into the switch accommodating cavity.
Description
Technical field
The present invention relates to a kind of dust-proof switch, specifically refer to a kind of key switch dustproof construction.
Background technology
Key switch is by button on guidance panel, makes the conducting of button the two poles of the earth, thus the signal transmission realizing key switch reaches the object of manipulation.At present, usually all there is gap by the housing of sincere (or being called operating knob) and key switch in common key switch, dusts etc. easily enter in housing from gap, and in dust, be mixed with corrosive substance, if from gap, encroached water is assigned in housing again, enter the water of housing and dust and then can corrode other parts in housing, affect the normal work of switch.Owing to adopting mechanical structure, clean dust and dust-proof all comparatively difficulty.To overcome these shortcomings of key switch, just its additional external protector must be given, but this both can increase the triviality of installation, was unfavorable for that again control appliance develops to miniaturized integrated direction, and affected operating handle.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, provide a kind of dust that can prevent to enter the key switch dustproof construction of enclosure interior by gap.
The object of the invention is to be achieved through the following technical solutions:
A kind of key switch dustproof construction, comprise upper cover, base, by sincere, spring, moving plate and still, described base is fastened on upper cover and forms containing cavity, this still and moving plate are all arranged at upper cover and base encloses in the containing cavity of formation, can elasticity should be arranged at actively in containing cavity by spring by sincere, upper cover has the groove for exposing by sincere one end, act on the contact site of moving plate by the sincere other end, the contact site of this moving plate separates with contacting with the contact site of still to connect or depart from by sincere activity, it is characterized in that: described by sincere comprise one be connected contiguous block portion and button portion, described contiguous block portion to be formed in below button portion and to be positioned at the below of upper cover, the first gap is separated with between described groove and button portion, described contiguous block portion is provided with the dust-proof groove of the first ring-type docked with the first gap at the described first gap bearing of trend of correspondence.
Preferably, the inner peripheral of described groove be provided with and tilt outside top in chamfering.
Concrete, the groove width of the dust-proof groove of described first ring-type is greater than the width in described gap.
As a modification of the present invention, described base is provided with the guide vane end stop enclosed in contiguous block portion surrounding, be separated with the second gap between described guide vane end stop and contiguous block portion, described base is provided with the dust-proof groove of the second ring-type docked with the second gap to base bottom bearing of trend in described second gap of correspondence.
As another improvement of the present invention, described key switch dustproof construction also comprises sound shell fragment, described moving plate and still are all installed in base, described base is provided with the embedding slot for moving plate, still and sound shell fragment tight fit being embedded, and described sound shell fragment coordinates with described contiguous block portion and sounds along with by sincere pressing down and collide.
The present invention has the following advantages and beneficial effect compared to existing technology:
1, the present invention is by arranging at the described first gap bearing of trend of correspondence the dust-proof groove of the first ring-type docked with the first gap, thus when there being dust to enter, dust can be guided only to import in this dust-proof groove, avoids preventing dust from entering inside switch containing cavity.
2, by arranging the dust-proof groove of the second ring-type, even if having dust or moisture to enter from the second gap when key switch uses, dust also can only enter the dust-proof groove of the second ring-type docked with the second gap, ensures that switch does not affect normal work by dust, moisture etc.
3, contact site and sound generating unit are all positioned at the containing cavity surrounded by sincere and base, avoid dust etch.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of key switch dustproof construction of the present invention.
Fig. 2 is the front view of key switch dustproof construction.
Fig. 3 is the cutaway view of key switch of the present invention.
Fig. 4 is the partial enlarged drawing of part A in Fig. 3.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1 to 4, the present embodiment provides a kind of key switch dustproof construction, comprise upper cover 1, base 2, by sincere 3, spring 4, moving plate 5 and still 6, described base 2 is fastened on upper cover 1 and forms containing cavity, this still 5 and moving plate 6 are all arranged at upper cover 1 and enclose in the containing cavity of formation with base 2, can elasticity should be arranged at actively in containing cavity by spring by sincere 3, upper cover 1 has the groove 101 for exposing by sincere 3 one end, the other end by sincere 3 acts on the contact site of moving plate 5, the contact site of this moving plate 5 separates with contacting with the contact site of still to connect or depart from by sincere activity, described by sincere 3 comprise one be connected contiguous block portion 301 and button portion 302, described contiguous block portion 301 to be formed in below button portion 302 and to be positioned at the below of upper cover 1, the first gap 7 is separated with between described groove 101 and button portion 302, described contiguous block portion 301 is provided with the dust-proof groove 303 of the first ring-type docked with the first gap 7 at described first gap 7 bearing of trend of correspondence.
In order to reduce dust by airflow influence and change direction, chamfering in the inner peripheral of described groove 101 is provided with and tilts outside top.
In order to ensure dust-proof effect, prevent dust from depositing in gap passage, the groove width of the dust-proof groove of described first ring-type 303 is greater than the width in described gap.
In order to strengthen dust-proof effect further, described base 2 is provided with the guide vane end stop 8 enclosed in contiguous block portion surrounding, be separated with the second gap between described guide vane end stop 8 and contiguous block portion 301, described base 2 is provided with the dust-proof groove 201 of the second ring-type docked with the second gap to base bottom bearing of trend in described second gap 9 of correspondence.By arranging the dust-proof groove of the second ring-type, even if having dust or moisture to enter from the second gap when key switch uses, dust also can only enter the dust-proof groove of the second ring-type docked with the second gap, ensures that switch does not affect normal work by dust, moisture etc.
As another improvement of the present invention, described key switch dustproof construction also comprises sound shell fragment 9, described moving plate 5 and still 6 are all installed in base 2, described base 2 is provided with the embedding slot for moving plate 5, still 6 and sound shell fragment 9 tight fit being embedded, and described sound shell fragment 9 coordinates with described contiguous block portion 301 and along with by sincere 3 press down and collide and sound.By said structure, user can sound when key tap switch, obtains better feel when user operates, be also convenient to user can clear perception oneself operation time knock state, meet the needs of different users, different occasion.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. a key switch dustproof construction, comprise upper cover, base, by sincere, spring, moving plate and still, described base is fastened on upper cover and forms containing cavity, this still and moving plate are all arranged at upper cover and base encloses in the containing cavity of formation, can elasticity should be arranged at actively in containing cavity by spring by sincere, upper cover has the groove for exposing by sincere one end, act on the contact site of moving plate by the sincere other end, the contact site of this moving plate separates with contacting with the contact site of still to connect or depart from by sincere activity, it is characterized in that: described by sincere comprise one be connected contiguous block portion and button portion, described contiguous block portion to be formed in below button portion and to be positioned at the below of upper cover, the first gap is separated with between described groove and button portion, described contiguous block portion is provided with the dust-proof groove of the first ring-type docked with the first gap at the described first gap bearing of trend of correspondence.
2. key switch dustproof construction according to claim 1, is characterized in that: chamfering in the inner peripheral of described groove is provided with and tilts outside top.
3. key switch dustproof construction according to claim 1, is characterized in that: the groove width of the dust-proof groove of described first ring-type is greater than the width in described gap.
4. the key switch dustproof construction according to any one of claim 1-3, it is characterized in that: described base is provided with the guide vane end stop enclosed in contiguous block portion surrounding, be separated with the second gap between described guide vane end stop and contiguous block portion, described base is provided with the dust-proof groove of the second ring-type docked with the second gap to base bottom bearing of trend in described second gap of correspondence.
5. the key switch dustproof construction according to any one of claim 1-3, it is characterized in that: described key switch dustproof construction also comprises sound shell fragment, described moving plate and still are all installed in base, described base is provided with the embedding slot for moving plate, still and sound shell fragment tight fit being embedded, and described sound shell fragment coordinates with described contiguous block portion and sounds along with by sincere pressing down and collide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391381.5A CN104966634B (en) | 2015-07-02 | 2015-07-02 | A kind of key switch dustproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391381.5A CN104966634B (en) | 2015-07-02 | 2015-07-02 | A kind of key switch dustproof construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104966634A true CN104966634A (en) | 2015-10-07 |
| CN104966634B CN104966634B (en) | 2017-08-18 |
Family
ID=54220659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510391381.5A Active CN104966634B (en) | 2015-07-02 | 2015-07-02 | A kind of key switch dustproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104966634B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108022787A (en) * | 2018-01-08 | 2018-05-11 | 深圳马太亚科技有限公司 | A kind of biconvex point clamp spring sound-producing keyboard switch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202969Y (en) * | 1994-07-30 | 1995-07-05 | 江丽卿 | Press button with folding spring chip and rod |
| CN1334958A (en) * | 1999-02-01 | 2002-02-06 | 默勒股份有限公司 | Push button |
| CN101866771A (en) * | 2010-06-11 | 2010-10-20 | 袁建君 | Key dust-proofing structure |
| US20140262712A1 (en) * | 2013-03-12 | 2014-09-18 | Te-Yi Chu | Water-proof button assembly and object with the water-proof button assembly |
| CN104465177A (en) * | 2014-12-10 | 2015-03-25 | 惠州冠泰电子有限公司 | Thin type button switch with dustproof cover |
| CN204792548U (en) * | 2015-07-02 | 2015-11-18 | 惠州冠泰电子有限公司 | Key switch dustproof construction |
-
2015
- 2015-07-02 CN CN201510391381.5A patent/CN104966634B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202969Y (en) * | 1994-07-30 | 1995-07-05 | 江丽卿 | Press button with folding spring chip and rod |
| CN1334958A (en) * | 1999-02-01 | 2002-02-06 | 默勒股份有限公司 | Push button |
| CN101866771A (en) * | 2010-06-11 | 2010-10-20 | 袁建君 | Key dust-proofing structure |
| US20140262712A1 (en) * | 2013-03-12 | 2014-09-18 | Te-Yi Chu | Water-proof button assembly and object with the water-proof button assembly |
| CN104465177A (en) * | 2014-12-10 | 2015-03-25 | 惠州冠泰电子有限公司 | Thin type button switch with dustproof cover |
| CN204792548U (en) * | 2015-07-02 | 2015-11-18 | 惠州冠泰电子有限公司 | Key switch dustproof construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108022787A (en) * | 2018-01-08 | 2018-05-11 | 深圳马太亚科技有限公司 | A kind of biconvex point clamp spring sound-producing keyboard switch |
| CN108022787B (en) * | 2018-01-08 | 2024-02-20 | 东莞市高特电子有限公司 | Double-salient-point jump ring sounding keyboard switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104966634B (en) | 2017-08-18 |
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