CN201237984Y - Press key sealing structure - Google Patents
Press key sealing structure Download PDFInfo
- Publication number
- CN201237984Y CN201237984Y CNU2008201268760U CN200820126876U CN201237984Y CN 201237984 Y CN201237984 Y CN 201237984Y CN U2008201268760 U CNU2008201268760 U CN U2008201268760U CN 200820126876 U CN200820126876 U CN 200820126876U CN 201237984 Y CN201237984 Y CN 201237984Y
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- Prior art keywords
- hole
- button
- key hole
- push button
- keycap
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Abstract
The utility model discloses a push button-sealing structure, which relates to a sealing technique. The utility model resolves the technical problem that in the prior art, the push button-sealing structure causes the reduction of the strength and rigidity of a shell. The push button-sealing structure comprises a push button hole and a push button body; wherein, the push button hole is arranged on the shell; the push button body, which is nested in the push button hole, comprises a sealing part, a push button steadier and a push button cap; the push button steadier, which is provided with a steadier through hole, is embedded in the push button hole; the steadier through hole corresponds to the push button hole; the elastic sealing part is arranged between the steadier and the push button hole; the push button cap is arranged on one side of the sealing part, which is far from the push button hole; and moreover, the push button cap is extended out of the steadier through hole. The utility model is mainly used to seal various push button structures.
Description
Technical field
The utility model relates to a kind of Sealing Technology, is specifically related to a kind of button hermetically-sealed construction.
Background technology
In recent years, along with the continuous development of electronic technology, various portable mobile termianls such as mobile phone, MP3, MP4 are more and more universal, and become indispensable important tool in present people's life.
The front of electronic products such as portable mobile termianl all can be provided with some buttons usually, and the user controls electronic product or input information, order by pressing keys.User's operation for convenience, electronic product the side diverse location on also tend to additionally be provided with some functionality buttons or shortcut.With the mobile phone is example, and (or claim: side shell) is provided with volume and regulates and take pictures etc. function key so that operation, and people claim that the button of the side that these are arranged on casing is a side switch usually through the casing of being everlasting.Though various buttons especially side switch are convenient to user's operation, have influenced the sealing properties such as waterproof and dustproof of product.Products such as current intercom, mobile phone generally all adopt the processing technology of double-shot moulding to the sealing of side switch, promptly the casing of side switch and product are made of one, and reach the effect of waterproof and dustproof.
As Fig. 1, Fig. 2 with Figure 3 shows that double-shot moulding formula button hermetically-sealed construction of the prior art, have as shown in Figure 4 button through hole 2 in casing ebonite part 1, button through hole 2 is oppositely arranged with the switch surface of circuit board, injection molding machine by special use adopts the technology of double-shot moulding that one flexible glue part 13 and ebonite part 1 are fused, button through hole 2 inner port and this end that one end of flexible glue part 13 passes casing ebonite part 1 are provided with switch matching surface 14, the other end extends the external port of described button through hole 2, thereby forms button.When people manually pushed button, the switch matching surface 14 and the switch surface of flexible glue part 13 connected, and key switch is conducting just.Flexible glue part 13 not only can realize the sealing to button through hole 2, thereby reaches the purpose of waterproof and dustproof, also possesses the function of button simultaneously.
The inventor finds that though prior art can seal button to a certain extent, play certain waterproof and dustproof effect, there are the following problems at least in realizing process of the present utility model:
If offering the casing protection level of the electronic equipment of key hole has relatively high expectations (for example: the dustproof and waterproof class requirement is when IP53 is above) then needs bigger sealing force, thereby intensity and rigidity to casing all have high requirements, and the key hole that offered this moment on casing can have very big weakening to the intensity and the rigidity of casing.
The utility model content
The utility model provides a kind of button hermetically-sealed construction, has solved button hermetically-sealed construction of the prior art, causes the intensity of casing and the technical problem that rigidity reduces.
This button hermetically-sealed construction comprises the key hole that is opened on the casing, is sheathed on the keying body in the described key hole, and described keying body comprises seal, offers the key support and the keycap of rack ventilating hole; Described key support be embedded in the described key hole and the rack ventilating hole on it corresponding with described key hole, described elastic sealing element is located between described support and the described key hole, described keycap is located at the side of described seal away from key hole, and extends described rack ventilating hole.
Compared with prior art, in the above-mentioned button hermetically-sealed construction provided by the utility model, because key support is embedded in the key hole, it is to the support force that inwall provided of key hole, the intensity and the rigidity loss of the casing of offering on the casing that key hole causes have been remedied, make the casing at key hole place can bear bigger sealing force, can effectively strengthen the last intensity and the rigidity of casing, so solved the button hermetically-sealed construction of prior art, cause the intensity of casing and the technical problem that rigidity reduces, elastic sealing element is located between support and the key hole in addition, the slit that can avoid moisture or dust to penetrate between support and the key hole enters casing inside, so can seal key hole reliably, play waterproof, the dustproof effect.
Description of drawings
Fig. 1 is the front view of the button hermetically-sealed construction of double-shot moulding formula of the prior art;
Fig. 2 is the cutaway view of Fig. 1 along the A-A line;
Fig. 3 is not provided with the front view of flexible glue part for the button hermetically-sealed construction of double-shot moulding formula of the prior art shown in Fig. 1;
Fig. 4 is the cutaway view of Fig. 3 along the B-B line;
Fig. 5 is the assembling process schematic diagram of button hermetically-sealed construction provided by the utility model;
Fig. 6 is the assembling process schematic diagram of keying body shown in Figure 5;
Fig. 7 is the sectional structure schematic diagram of a kind of execution mode assembling back of button hermetically-sealed construction shown in Figure 5 along the C-C line;
Fig. 8 is the sectional structure schematic diagram of another execution mode assembling back of button hermetically-sealed construction shown in Figure 5 along the C-C line;
Fig. 9 is the sectional structure schematic diagram of another execution mode assembling back of button hermetically-sealed construction shown in Figure 5 along the C-C line;
Figure 10 is the sectional structure schematic diagram of another execution mode assembling back of button hermetically-sealed construction shown in Figure 5 along the C-C line;
Figure 11 is the schematic perspective view of back cover in the button hermetically-sealed construction provided by the utility model.
Embodiment
The utility model provides a kind of button hermetically-sealed construction, can not only realize the sealing to key hole on the casing, and can improve the intensity and the rigidity of casing.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
As Fig. 5, Fig. 6 and shown in Figure 7, the button hermetically-sealed construction that the utility model embodiment is provided, comprise the key hole 2 that is opened on the casing 1, be sheathed on the keying body in the key hole 2, keying body comprises elastic sealing element 3, offers the key support 4 and the keycap 5 of rack ventilating hole 41; Key support 4 be embedded in the key hole 2 and the rack ventilating hole on it 41 corresponding with key hole 2, elastic sealing element 3 is located between support 4 and the key hole 2, keycap 5 is located at the end of seal 3 away from key hole 2, and extends rack ventilating hole 41.Because key support 4 is embedded in the key hole 2, it is to the support force that inwall provided of key hole 2, make the casing 1 at key hole 2 places can bear bigger sealing force, the intensity and the rigidity loss of key hole 2 casing of offering on the casing 1 that causes 1 have been remedied, can effectively strengthen the last intensity and the rigidity of casing 1, so solved button hermetically-sealed construction of the prior art, caused the intensity of casing and the technical problem that rigidity reduces; In addition, because elastic sealing element 3 is located between support 4 and the key hole 2, the gap that can stop moisture or dust to penetrate between support 4 and the key hole 2 enters casing 1, has played sealing key hole 2, the effect of waterproof and dustproof.The material of key support 4 is a magnadure in the present embodiment, and basic wall thickness is preferably 0.8～1.0mm, and the strength and stiffness of this structure can satisfy the demand that the dustproof and waterproof grade reaches the IP56 protection level.Key support 4 is preferably 0.05mm with the fit clearance of key hole 2, and this gap width not only had been convenient to assemble but also can form the effective support to key hole 2.
As Fig. 5 and shown in Figure 11, key hole 2 comprises button through hole 20 and the counterbore 21 that is connected with button through hole 20 in the present embodiment, and counterbore 21 is opened in the outside of casing 1, and key support 4 is embedded in the counterbore 21.The edge of key support 4 is resisted against on the inwall of counterbore 21.Can play a part the inwall of counterbore 21 to support, reinforce, and bear the sealing force at counterbore 21 places jointly with casing 1.Certainly, in the present embodiment key hole 2 also can be as shown in Figure 8 bellmouth or garden cylindrical hole as shown in Figure 9, when key hole 2 is bellmouth or garden cylindrical hole, key support 4 is pressed against seal 3 on the inwall of key hole 2, key support 4 and seal 3 can adopt the mode with key hole 2 interference fit to be fixed in the key hole 2, also can adopt additive method such as the bonding or injection moulding of seccotine to be fixed in the key hole 2.
As shown in Figure 5, the bottom surface of counterbore 21 is provided with screw 22 in the present embodiment, also offers the installing hole 42 relative with screw 22 on the key support 4, and key support 4 was connected by cooperating with casing 1 of screw 24 and screw 22.Screw 24 passes installing hole 42, screw 22 is fixed on key support 4 on the casing 1, adopts the detachable connected mode of screw or bolt, install, dismounting with respect to be full of cooperate or mode such as bonding, injection moulding more convenient, and cost is also lower.
As Fig. 6, Fig. 7 and shown in Figure 8, elastic sealing element 3 comprises cylinder and the diaphragm seal that is connected as a single entity with cylinder, diaphragm seal is between key support 4 and key hole 2, one end of cylinder extends key hole 2 and which is provided with switch matching surface 31, and its other end extends rack ventilating hole 41 and which is provided with keycap 5.Key support 4 is connected by screw 24 and casing 1, also elastic sealing element 3 is fixed on the bottom surface of counterbore 21 simultaneously, makes elastic sealing element 3 play the effect in gap between sealing key support 4 and the key hole 2.The elastic force of diaphragm seal can move cylinder within the certain distance scope of axial direction, and automatically resets.When pressing keycap 5, the switch matching surface 31 that keycap 5 promotes cylinders be located at casing 1 in circuit board on switch contact switch conduction at this moment; When decontroling keycap 5, under the elastic force effect of diaphragm seal, the switch matching surface 31 on the cylinder leaves switch and automatically resets.The form that is provided with of switch is DOME (Metal Dome) chip or SMT (paster) formula in the present embodiment, is preferably the SMT formula.Because elastic sealing element 3 is the media between keycap 5 and the switch, so can also effectively improve the feel of user when pressing keycap 5.
Adopting hardness in the present embodiment is the silastic material making elastic sealing element 3 of Shao Shi 70 degree, can obtain neither too hard, nor too soft desirable feel by the hardness of regulating elastic sealing element 3 materials.Based on the disclosed version of present embodiment, if the requirement of the protection level of casing 1 is higher, then can change the partial structurtes of elastic sealing element 3, for example: the elastic force, the increase elastic sealing element 3 that increase elastic sealing element 3 are long-pending with the matching surface of key hole 2.
As shown in Figure 6 and Figure 7, the side away from support 4 on the diaphragm seal is provided with the convex tendon 32 that is provided with at interval with cylinder, and the inwall of key hole 2 is provided with the sealed groove 23 suitable with convex tendon 32, and convex tendon 32 embeds in the sealed grooves 23.Sealed groove 23 is opened in the bottom surface of counterbore 21 in the present embodiment, convex tendon 32 makes diaphragm seal more reliable in the location of counterbore 21 bottom surfaces of key hole 2 on the one hand, also increase the contact area of diaphragm seal and counterbore 21 bottom surfaces on the other hand, thereby improved sealing effectiveness.
As Fig. 7, Fig. 8 and shown in Figure 9, be provided with disconnecting prevention structure between keycap 5 and the key support 4.Disconnecting prevention structure comprises the spacing button 43 that is located at rack ventilating hole 41 inwalls and is located at buckle 51 on the keycap 5 that buckle 51 is meshed with the side of spacing button 43 away from keycap 5.Under the tension of spacing button 43, keycap 5 can arbitrarily not deviate from from key support 4.The specific implementation method of disconnecting prevention structure has multiple, and for example: spacing button 43 also can be the limited impression that is opened in rack ventilating hole 41 inwalls; Again for example: buckle 51 can be the draw-in groove that is opened on the keycap 5; Certainly, keycap 5 also can be connected as a single entity as shown in figure 10 with elastic sealing element 3.The mode structure that is connected as a single entity is more simple.Disconnecting prevention structure plays the effect that prevents that keycap 5 from deviating from from elastic sealing element 3, when pressing keycap 5, and then when decontroling keycap 5 under the elastic force effect of elastic sealing element 3 itself, automatically reset and produce a power outwardly, at this moment, disconnecting prevention structure blocks keycap 5, and keycap 5 is limited in the key hole 2, thereby avoids it to deviate from.Keycap 5 is positioned at the outer parts of key hole 2 and forms button in the present embodiment, and keycap 5 adopts after the injection mouldings of PC material by the PROCESS FOR TREATMENT of surface spraying and laser engraving, and is elegant in appearance.
As shown in Figure 5, key hole 2 is opened in the side of casing 1 in the present embodiment, and key hole 2 is the side switch hole of electronic equipment.The positive set button of casing 1 is commonly referred to button or major key, and the set button in the side of casing 1 abbreviates side switch usually as.
As Fig. 5, Fig. 7 and shown in Figure 11, casing 1 comprises back cover 11 and is located at fore shell 10 on the back cover 11, presses between fore shell 10 and the back cover 11 to be provided with sealing strip 111, and key hole 2 is opened in the side of back cover 11.The top of back cover 11 is provided with bar shaped crossbeam 110 in the present embodiment, the bottom of fore shell 10 is provided with the translot 100 suitable with crossbeam 110, crossbeam 110 embeds in the translot 100, and sealing strip 111 is pressed and is located between crossbeam 110 and the translot 100, plays the effect in gap between sealing fore shell 10 and the back cover 11.Present embodiment middle cross beam height dimension is preferably 1.0mm, also can be made into 0.8mm if desired, because the crossbeam height dimension is smaller, so expanded the choice of location leeway of key hole 2.
More than embodiment provided by the utility model only be the specific implementation method of several typical embodiment of the present utility model; the implementation method that other also can be arranged; such as: devices such as the elastic sealing element among the utility model embodiment, key support and keycap also can select other material, the combination of material to implement said method; but these do not break away from the spirit and scope of technical solutions of the utility model, all within the protection range of this patent.
Claims (10)
1, a kind of button hermetically-sealed construction comprises the key hole that is opened on the casing, is sheathed on the keying body in the described key hole, and it is characterized in that: described keying body comprises seal, offers the key support and the keycap of rack ventilating hole; Described key support be embedded in the described key hole and the rack ventilating hole on it corresponding with described key hole, described elastic sealing element is located between described key support and the described key hole, described keycap is located at the side of described seal away from described key hole, and extends described rack ventilating hole.
2, button hermetically-sealed construction according to claim 1 is characterized in that: described key hole comprises button through hole and the counterbore that is connected with described button through hole, and described counterbore is opened in the outside of described casing, and described support is embedded in the described counterbore.
3, button hermetically-sealed construction according to claim 2, it is characterized in that: the bottom surface of described counterbore is provided with screw, also offer the installing hole relative with described screw on the described key support, described key support was connected by screw and cooperating with described casing of described screw.
4, according to claim 1 or 2 or 3 described button hermetically-sealed constructions, it is characterized in that: described elastic sealing element comprises cylinder and the diaphragm seal that is connected as a single entity with described cylinder, described diaphragm seal is between described key support and described key hole, one end of described cylinder extends described key hole and which is provided with the switch matching surface, and its other end extends described rack ventilating hole and which is provided with described keycap.
5, button hermetically-sealed construction according to claim 4, it is characterized in that: the side away from described support on the described diaphragm seal is provided with the convex tendon that is provided with at interval with described cylinder, the inwall of described key hole is provided with and the suitable sealed groove of described convex tendon, and described convex tendon embeds in the described sealed groove.
6, button hermetically-sealed construction according to claim 4 is characterized in that: described keycap and described elastic sealing element are connected as a single entity.
7, button hermetically-sealed construction according to claim 4 is characterized in that: be provided with disconnecting prevention structure between described keycap and the described key support.
8, button hermetically-sealed construction according to claim 7, it is characterized in that: described disconnecting prevention structure comprises the spacing button that is located at described rack ventilating hole inwall and is located at buckle on the described keycap that described buckle is meshed with the side of described spacing button away from described keycap.
9, button hermetically-sealed construction according to claim 1, it is characterized in that: described key hole is opened in the side of described casing, and described key hole is the side switch hole of electronic equipment.
10, button hermetically-sealed construction according to claim 9, it is characterized in that: described casing comprises fore shell and back cover, presses between described fore shell and the described back cover to be provided with sealing strip, described key hole is opened on the described back cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201268760U CN201237984Y (en) | 2008-07-03 | 2008-07-03 | Press key sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201268760U CN201237984Y (en) | 2008-07-03 | 2008-07-03 | Press key sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237984Y true CN201237984Y (en) | 2009-05-13 |
Family
ID=40650719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201268760U Expired - Fee Related CN201237984Y (en) | 2008-07-03 | 2008-07-03 | Press key sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237984Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944449A (en) * | 2010-09-29 | 2011-01-12 | 青岛海信移动通信技术股份有限公司 | Key structure and portable mobile terminal |
| CN106098445A (en) * | 2016-06-30 | 2016-11-09 | 维沃移动通信有限公司 | A kind of press-key structure and electronic equipment |
| CN106328410A (en) * | 2016-08-30 | 2017-01-11 | 天津三卓韩橡塑科技股份有限公司 | Side key with metal frame |
| CN108257808A (en) * | 2018-02-05 | 2018-07-06 | 金卡智能集团股份有限公司 | A kind of measuring instrument multifunction push key sealing structure |
| EP3644337A1 (en) * | 2018-10-25 | 2020-04-29 | Samsung Electronics Co., Ltd. | Electronic device including physical button structure |
| CN112353347A (en) * | 2020-11-03 | 2021-02-12 | 青岛海泰新光科技股份有限公司 | Wedge-shaped locking and sealing structure of camera shooting handle |
| WO2023124820A1 (en) * | 2021-12-31 | 2023-07-06 | 华为技术有限公司 | Key assembly and electronic device |
-
2008
- 2008-07-03 CN CNU2008201268760U patent/CN201237984Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944449A (en) * | 2010-09-29 | 2011-01-12 | 青岛海信移动通信技术股份有限公司 | Key structure and portable mobile terminal |
| CN101944449B (en) * | 2010-09-29 | 2012-10-10 | 青岛海信移动通信技术股份有限公司 | Key structure and portable mobile terminal |
| CN106098445A (en) * | 2016-06-30 | 2016-11-09 | 维沃移动通信有限公司 | A kind of press-key structure and electronic equipment |
| CN106328410A (en) * | 2016-08-30 | 2017-01-11 | 天津三卓韩橡塑科技股份有限公司 | Side key with metal frame |
| CN108257808A (en) * | 2018-02-05 | 2018-07-06 | 金卡智能集团股份有限公司 | A kind of measuring instrument multifunction push key sealing structure |
| CN108257808B (en) * | 2018-02-05 | 2024-08-06 | 金卡智能集团股份有限公司 | Multi-functional button seal structure of metering device |
| EP3644337A1 (en) * | 2018-10-25 | 2020-04-29 | Samsung Electronics Co., Ltd. | Electronic device including physical button structure |
| CN112912818A (en) * | 2018-10-25 | 2021-06-04 | 三星电子株式会社 | Electronic device including physical button structure |
| US11202385B2 (en) | 2018-10-25 | 2021-12-14 | Samsung Electronics Co., Ltd. | Electronic device including physical button structure |
| CN112353347A (en) * | 2020-11-03 | 2021-02-12 | 青岛海泰新光科技股份有限公司 | Wedge-shaped locking and sealing structure of camera shooting handle |
| WO2023124820A1 (en) * | 2021-12-31 | 2023-07-06 | 华为技术有限公司 | Key assembly and electronic device |
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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: 20090513 Termination date: 20110703 |