CN203895308U - Press key sealing device - Google Patents
Press key sealing device Download PDFInfo
- Publication number
- CN203895308U CN203895308U CN201420222205.XU CN201420222205U CN203895308U CN 203895308 U CN203895308 U CN 203895308U CN 201420222205 U CN201420222205 U CN 201420222205U CN 203895308 U CN203895308 U CN 203895308U
- Authority
- CN
- China
- Prior art keywords
- button
- housing
- press key
- sealing device
- circle
- 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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- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model relates to a press key sealing device, and belongs to the technical field of electronic element sealing. The device comprises a housing (1), a press key (2) and a circuit board (3), wherein the housing is provided with a press key hole, the press key penetrates through the press key hole, and the end of the press key inside the housing (1) contacts the circuit board. The device is characterized in that the inner side of the housing is provided with a boss (1.1) along the circumference of the press key hole, a circle of groove (1.1.1) is disposed on the end faces of the boss, the press key is provided with a circle of edge (2.1), a circle of protrusion (2.1.1) is disposed outside the edge and can be clamped inside the groove of the housing, and the press key is made of an elastic soft material. According to the press key sealing device, an integral structure of the press key and a sealing ring is adopted, only the mould of the press key is needed to be manufacturing during moulding, thus procedures during assembly and disassembly are saved, and a more effective sealing effect can be obtained because of coordination of the groove of the housing and the boss of the press key.
Description
Technical field
The utility model relates to a kind of button sealing device, belongs to electronic component encapsulation technical field.
Background technology
Along with scientific and technological progress, electronic product is more and more popularized the every field in life, on a lot of electronic products, some buttons is all set, and operator controls electronic product or input instruction by pressing keys.But because product is often exposed to outside, inevitably have some dusts or other impurity and enter electronic component inside along button gap around, the more severe place of some environment especially, this problem is especially serious.Along with the electronic product growth of service time, button will, because of the obstruction of dust, affect the flexibility of button around so; If be subject to liquid, enter, also can make the electronic circuit of electronic product inside and components and parts manually damage.
In order to realize the sealing effectivenesss such as water proof and dust proof of electronic product, on the button of a lot of products, be all provided with air locking.But the air locking on market adopts two parts that separate of button and sealing mostly, button just needs two moulds with sealing, after also needing to install sealing ring during installation, refill button film, installation procedure is complicated, and split structure makes the sealing effectiveness of button unsatisfactory; Also have some buttons to adopt the form of thin film switch, still due to the easy season cracking of film, and then cause internal circuit short circuit so that whole electronic devices and components to scrap.
Summary of the invention
For the deficiencies in the prior art, a kind of button sealing device is now provided, can make the sealing property of whole button higher, and save material and simplify installation procedure.
To achieve these goals, a kind of button sealing device, comprise housing, button and circuit board, described housing has key hole, button is through the key hole on housing, and button one end in housing contacts with circuit board, it is characterized in that: the inner side of described housing has boss in one week along key hole, and the end face of boss is provided with a circle groove; Described button has a circle edge, the outside tool one circle projection at edge, and projection can be stuck in the groove of housing; Described button adopts elastic soft material to make.
Button is installed in the key hole of housing, and the projection in outside, button edge is embedded in the groove of housing raised head face, because button adopts soft material to make, so button relies on elasticity can tightly be attached to the inner side of key hole, and the projection of button and the groove of housing closely cooperate, key hole is sealed completely, and the dust spot in the effectively preventing external world etc. enters enclosure interior.
Outside described button edge, the side of projection also has protruding particle, for increasing the frictional force between housing and button, makes the sealing effectiveness of button better.
Described circuit board is connected by screw or buckle with housing.
Described button adopts silica gel material.
On the end face of described button outside exposing housing, there is waterproof membrane.
The utility model adopts button and sealing ring integral structure, when making mould, can only manufacture the mould of button, program while not only having saved installing/dismounting, the while, because housing groove and button boss cooperatively interacts, can obtain sealing effectiveness more efficiently.
Accompanying drawing explanation
Fig. 1 is cutaway view of the present utility model;
Fig. 2 is the structural representation of button 2.
In figure: 1, housing; 1.1, boss; 1.1.1, groove; 2, button; 2.1 edge; 2.1.1, projection; 2.2, waterproof membrane; 3, circuit board.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail
As shown in the figure, a kind of button sealing device, comprise housing 1, button 2 and circuit board 3, described housing 1 has key hole, button 2 is through the key hole on housing 1, and button 2 one end in housing 1 contacts with circuit board 3, it is characterized in that: the inner side of described housing 1 has boss 1.1 in one week along key hole, and the end face of boss 1.1 is provided with a circle groove 1.1.1; Described button 2 has a circle edge 2.1, the outside tool one circle projection 2.1.1 at edge, and projection 2.1.1 can be stuck in the groove 1.1.1 of housing 1; Described button 2 adopts elastic soft material to make.
Button 2 is installed in the key hole of housing 1, and the projection 2.1.1 in button 2 outsides, edge is embedded in the groove 1.1.1 of housing 1 boss 1.1 end faces, because button 2 adopts soft material to make, so button 2 relies on elasticity can tightly be attached to the inner side of key hole, and the groove 1.1.1 of the projection 2.1.1 of button 2 and housing closely cooperates, key hole is sealed completely, and the dust spot in the effectively preventing external world etc. enters housing 1 inside.
As further improvement project, the side of projection 2.1.1 also has protruding particle outside described button 2 edges.
Preferably, described circuit board 3 is connected by screw or buckle with housing 1.
Preferably, described button 2 adopts silica gel material.
As further improvement project, on the end face of described button 2 outside exposing housing 1, there is waterproof membrane 2.2.
The utility model adopts button seal-integrated type structure, and cost is lower, easy to maintenance, and can reach good sealing effectiveness.
Claims (5)
1. a button sealing device, comprise housing (1), button (2) and circuit board (3), described housing (1) has key hole, button (2) is through the key hole on housing (1), and button (2) one end in housing 1 contacts with circuit board (3), it is characterized in that: the inner side of described housing (1) has boss (1.1) for one week along key hole, and the end face of boss (1.1) is provided with a circle groove (1.1.1); Described button (2) has a circle edge (2.1), the outside tool one circle projection (2.1.1) at edge, and projection (2.1.1) can be stuck in the groove (1.1.1) of housing (1); Described button (2) adopts elastic soft material to make.
2. button sealing device as claimed in claim 1, is characterized in that: outside described button (2) edge, the side of projection (2.1.1) also has protruding particle.
3. button sealing device as claimed in claim 1, is characterized in that: described circuit board (3) is connected by screw or buckle with housing (1).
4. button sealing device as claimed in claim 1, is characterized in that: described button (2) adopts silica gel material.
5. button sealing device as claimed in claim 1, is characterized in that: on the end face of described button (2) outside exposing housing (1), have waterproof membrane (2.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222205.XU CN203895308U (en) | 2014-04-30 | 2014-04-30 | Press key sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420222205.XU CN203895308U (en) | 2014-04-30 | 2014-04-30 | Press key sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895308U true CN203895308U (en) | 2014-10-22 |
Family
ID=51721678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420222205.XU Expired - Fee Related CN203895308U (en) | 2014-04-30 | 2014-04-30 | Press key sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902510A (en) * | 2017-12-19 | 2018-04-13 | 江西亿康云谷自动化设备有限公司 | A kind of comfortable elevator console of button |
| CN109330624A (en) * | 2018-11-16 | 2019-02-15 | 飞依诺科技(苏州)有限公司 | Ultrasonic probe |
-
2014
- 2014-04-30 CN CN201420222205.XU patent/CN203895308U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902510A (en) * | 2017-12-19 | 2018-04-13 | 江西亿康云谷自动化设备有限公司 | A kind of comfortable elevator console of button |
| CN109330624A (en) * | 2018-11-16 | 2019-02-15 | 飞依诺科技(苏州)有限公司 | Ultrasonic probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170430 |