CN204792548U - Key switch dustproof construction - Google Patents
Key switch dustproof construction Download PDFInfo
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- CN204792548U CN204792548U CN201520480774.9U CN201520480774U CN204792548U CN 204792548 U CN204792548 U CN 204792548U CN 201520480774 U CN201520480774 U CN 201520480774U CN 204792548 U CN204792548 U CN 204792548U
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- sincere
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Abstract
The utility model discloses a key switch dustproof construction, including upper cover, base, according to sincere, spring, moving plate and still, the base lock forms the holding chamber in the upper cover, and this still and moving plate all set up in upper cover and base and enclose the holding intracavity that closes formation, but should set up in the holding chamber through spring elasticity activity ground according to sincere, and the logical groove that has the confession to expose is opened according to sincere one end to the upper cover, the contact site of moving plate is acted on according to the sincere other end and on, the contact site of this moving plate parts along with contacting to be connected or to break away from with the contact site of still according to sincere activity, according to sincere including integrative connecting block portion and the button portion that links to each other, connecting block portion forms the below that just is located the upper cover in button troops under one's command side, it has first gap to lead to to separate between groove and the button portion, connecting block portion is corresponding first gap extending direction is equipped with the dustproof slot of the first ring -type of docking with first gap. The utility model discloses can guide the dust only to channel into at this dustproof ditch inslot, avoid preventing that the dust from advancing to switch holding chamber the inside.
Description
Technical field
The utility model relates to a kind of dust-proof switch, specifically refers 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.
Utility model content
The purpose of this utility model overcomes weak point of the prior art, provides a kind of dust that can prevent to enter the key switch dustproof construction of enclosure interior by gap.
The purpose of this utility model is 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.
Improve as one of the present utility model, 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 utility model, 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 utility model has the following advantages and beneficial effect compared to existing technology:
1, the utility model 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, avoid 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 the utility model key switch dustproof construction.
Fig. 2 is the front view of key switch dustproof construction.
Fig. 3 is the cutaway view of the utility model key switch.
Fig. 4 is the partial enlarged drawing of part A in Fig. 3.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is 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 utility model, 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 utility model preferably execution mode; but execution mode of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
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 |
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CN201520480774.9U CN204792548U (en) | 2015-07-02 | 2015-07-02 | Key switch dustproof construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520480774.9U CN204792548U (en) | 2015-07-02 | 2015-07-02 | Key switch dustproof construction |
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CN204792548U true CN204792548U (en) | 2015-11-18 |
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CN201520480774.9U Active CN204792548U (en) | 2015-07-02 | 2015-07-02 | Key switch dustproof construction |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104966634A (en) * | 2015-07-02 | 2015-10-07 | 惠州冠泰电子有限公司 | Button switch dustproofing structure |
CN106783326A (en) * | 2016-12-13 | 2017-05-31 | 刘军方 | A kind of thin type key switch |
CN108364630A (en) * | 2018-04-20 | 2018-08-03 | 郑州科技学院 | Dust-proof conduction touch-control body |
CN108447464A (en) * | 2018-04-20 | 2018-08-24 | 郑州科技学院 | Dust-proof conductive touch-control body for accurate conductive contact mechanism |
-
2015
- 2015-07-02 CN CN201520480774.9U patent/CN204792548U/en active Active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104966634A (en) * | 2015-07-02 | 2015-10-07 | 惠州冠泰电子有限公司 | Button switch dustproofing structure |
CN106783326A (en) * | 2016-12-13 | 2017-05-31 | 刘军方 | A kind of thin type key switch |
CN108364630A (en) * | 2018-04-20 | 2018-08-03 | 郑州科技学院 | Dust-proof conduction touch-control body |
CN108447464A (en) * | 2018-04-20 | 2018-08-24 | 郑州科技学院 | Dust-proof conductive touch-control body for accurate conductive contact mechanism |
CN108447464B (en) * | 2018-04-20 | 2021-04-20 | 郑州科技学院 | Dustproof conductive touch body for precise conductive contact mechanism |
CN108364630B (en) * | 2018-04-20 | 2021-04-23 | 郑州科技学院 | Dustproof conductive touch body |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant |