CN101908429B - Keystroke fixing structure and portable mobile terminal - Google Patents
Keystroke fixing structure and portable mobile terminal Download PDFInfo
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- CN101908429B CN101908429B CN 201010255328 CN201010255328A CN101908429B CN 101908429 B CN101908429 B CN 101908429B CN 201010255328 CN201010255328 CN 201010255328 CN 201010255328 A CN201010255328 A CN 201010255328A CN 101908429 B CN101908429 B CN 101908429B
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- keystroke
- button
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Abstract
The invention discloses a keystroke fixing structure and a portable mobile terminal, relating to the technical field of electronics and solving the technical problem of poor reliability of the traditional keystroke fixing structure. The keystroke fixing structure comprises a casing, a fixing sheet and detachable connection structures, wherein the fixing sheet is provided with at least one keystroke through hole, the detachable connection structures can prevent the fixing sheet from separating towards the direction far away from a circuit board, and the casing is internally provided with the circuit board electrically connected with a keystroke switch; at least one externally convex keystroke bulge is fixedly arranged on a keystroke rubber mat and embedded in the keystroke through hole, and the part opposite to the keystroke bulge position and on one side of the keystroke rubber mat close to the circuit board is opposite to the position of the keystroke switch; and the detachable connection structures are arranged on the side of the fixing sheet edge close to the circuit board and on the casing. The portable mobile terminal comprises such keystroke fixed structure, the keystrokes and the circuit board located in the casing. The invention is applied to the fixed keystrokes.
Description
Technical field
The present invention relates to electronic technology field, the portable mobile termianl that is specifically related to a kind of keystroke fixing structure and is provided with this keystroke fixing structure.
Background technology
Along with the continuous development of electronic technology, portable mobile termianls such as mobile phone, palmtop PC have become means of communication the most common in people's daily life.
Button is one of vitals on the electronic equipment such as portable mobile termianl, and button is used for realizing the man-machine interaction between electronic equipment and the user.Existing button comprises silicagel pad and at least one key switch, is provided with the circuit board that is electrically connected with key switch in the fore shell; Be installed with the stud bump that at least one is spirogyrate on the silicagel pad, part relative with the stud bump position on the side near circuit board on the silicagel pad is relative with the key switch position; Stud bump is installed with keycap away from the end of silicagel pad.When pressing keycap, keycap can drive on the side of silicagel pad near circuit board the part relative with the stud bump position and depress key switch, key switch can produce a push button signalling and push button signalling is sent to circuit board after being depressed once, and then finishes the one-touch operation.
For with reliable, stable being fixed on the electronic equipments such as portable mobile termianl of button, be provided with keystroke fixing structure on the electronic equipments such as portable mobile termianl.Existing keystroke fixing structure, the steel disc that comprises fore shell and offer at least one button through hole, stud bump is embedded in the button through hole and stud bump is extended the button through hole away from the end of silicagel pad, and the side away from circuit board on the edge of fore shell and the steel disc edge leans.Under the effect of fore shell and steel disc, silicagel pad is restricted in the fore shell, so silicagel pad can't be deviate from the direction away from circuit board.
Along with the increase of portable mobile termianl function and the user lifting to product design requirement attractive in appearance, the number of button is more and more on the portable mobile termianl, because the size of button keycap size is certain basically, in order to increase the number of button, it is more and more littler that the fore shell around the button and the width dimensions at steel disc edge design.
The inventor finds that there is following problem at least in prior art in realizing process of the present invention:
Because the fore shell in the prior art around the button and the design of the width dimensions at steel disc edge is more and more littler, the width dimensions at fore shell and steel disc edge hour, the area that leans away from a side of circuit board on the edge of fore shell and the steel disc edge in the existing keystroke fixing structure is also smaller, so the edge of fore shell can't fix steel disc and silicagel pad live reliably, silicagel pad is easily deviate from from the direction away from circuit board, causes the poor reliability of existing keystroke fixing structure.
Summary of the invention
The embodiment of the invention provides a kind of keystroke fixing structure and portable mobile termianl, has solved the technical problem of existing keystroke fixing structure poor reliability.
For achieving the above object, embodiments of the invention adopt following technical scheme:
This keystroke fixing structure comprises casing, offers the stator of at least one button through hole and can prevent that described stator is towards the structure that removably connects of deviating from away from the direction of described circuit board, wherein:
Button comprises button rubber cushion and at least one key switch, is provided with the circuit board that is electrically connected with described key switch in the described casing;
Be installed with the stud bump that at least one is spirogyrate on the described button rubber cushion, described stud bump is embedded in the described button through hole, and relative with described key switch position near part relative with described stud bump position on the side of described circuit board on the described button rubber cushion;
The described structure that removably connects is arranged on the described stator edge near on described circuit board one side and the described casing.
This portable mobile termianl comprises keystroke fixing structure, the described button that the invention described above provides and the described circuit board that is positioned at described casing, and described casing is the fore shell of this portable mobile termianl.
Compared with prior art, the arbitrary technical scheme in the technique scheme provided by the present invention has following advantage:
Owing to be provided with the structure that removably connects near circuit board one side and casing on the stator edge in the keystroke fixing structure of the present invention, the structure that removably connects can prevent that stator is towards deviating from away from the direction of circuit board, and the stud bump of button rubber cushion is embedded in the button through hole, part relative with the stud bump position on the side near circuit board on the button rubber cushion is relative with the key switch position, when structure prevents that stator court from deviating from away from the direction of circuit board so removably connect, can't can block the button rubber cushion again towards the stator of deviating from away from the direction of circuit board, and then preventing the button rubber cushion towards deviating from away from the direction of circuit board, structure can reach by stator and prevent that the button rubber cushion is towards the technique effect of deviating from away from the direction of circuit board so the present invention removably connects;
Simultaneously, because the structure that removably connects among the present invention is arranged on the stator edge near on circuit board one side and the casing, on the structure that removably connects and the vacant stator edge away from the area of a side of circuit board, and, utilize the stator edge also can not have influence on the outward appearance of product near the space of circuit board one side, so among the present invention casing need not with the steel disc edge on lean away from a side of circuit board, even the width dimensions at casing and steel disc edge design hour, casing also can not occur can't firmly cause the button rubber cushion easily to take place from the problem of deviating from away from the direction of circuit board stator and the fixing of button rubber cushion reliably, so solved the technical problem of existing keystroke fixing structure poor reliability.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The front view of the portable mobile termianl of the keystroke fixing structure that is provided with the embodiment of the invention and provides is provided Fig. 1;
Fig. 2 is that portable mobile termianl shown in Figure 1 is along the cutaway view of A-A line;
Fig. 3 is the enlarged diagram of B part among Fig. 2;
Fig. 4 is the enlarged diagram of C part among Fig. 2;
Fig. 5 is for being equipped with a schematic perspective view of the casing of button in the portable mobile termianl shown in Figure 1;
Fig. 6 is for being equipped with another schematic perspective view of the casing of button in the portable mobile termianl shown in Figure 1;
Fig. 7 is for being equipped with schematic perspective view again of the casing of button in the portable mobile termianl shown in Figure 1;
Fig. 8 is for being equipped with the floor map of the casing of button in the portable mobile termianl shown in Figure 1;
Fig. 9 for shown in Figure 8 be equipped with the utility model wherein the casing of the button that provides of a kind of execution mode along the cutaway view of D-D line;
Figure 10 is the enlarged diagram of E part among Fig. 9;
Figure 11 is a schematic perspective view of casing in the portable mobile termianl shown in Figure 1;
Figure 12 is another schematic perspective view of casing in the portable mobile termianl shown in Figure 1;
Figure 13 is schematic perspective view again of casing in the portable mobile termianl shown in Figure 1;
Figure 14 is a sheet of planar schematic diagram of casing in the portable mobile termianl shown in Figure 1;
Figure 15 is that portable mobile termianl shown in Figure 14 is along the cutaway view of F-F line;
Figure 16 is the enlarged diagram of G part among Figure 15;
Figure 17 is the schematic perspective view of the button assembled mutually with stator in the portable mobile termianl shown in Figure 1;
Figure 18 is the floor map of button shown in Figure 17;
Figure 19 is the end view of button shown in Figure 180;
Figure 20 is that button shown in Figure 17 and stator are along the cutaway view of H-H line;
Figure 21 is the enlarged diagram of J part among Figure 20;
Figure 22 for shown in Figure 8 be equipped with the utility model wherein the casing of the button that provides of another execution mode along the cutaway view of D-D line;
Figure 23 is the enlarged diagram of K part among Figure 22.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention provides a kind of good reliability and keystroke fixing structure easy for installation and the portable mobile termianl that is provided with this keystroke fixing structure.
As Fig. 1, Fig. 2 and shown in Figure 3, the keystroke fixing structure that the embodiment of the invention provides, comprise casing 1, offer at least one as the stator 3 of Fig. 4 and button through hole 2 shown in Figure 6 and can prevent that stator 3 is towards the structure 5 that removably connects as shown in Figure 3 of deviating from away from the direction of circuit board 4, wherein:
Be installed with at least one stud bump that is spirogyrate 63 on the button rubber cushion 61, stud bump 63 is embedded in the button through hole 2, and relative with key switch 62 positions near part relative with stud bump 63 positions on the side of circuit board 4 on the button rubber cushion 61;
The structure that removably connects 5 is arranged on stator 3 edges near on circuit board 4 one sides and the casing 1.
Owing to be provided with the structure 5 that removably connects as shown in Figure 3 and Figure 4 near circuit board 4 one sides and casing 1 on stator 3 edges in the keystroke fixing structure of the present invention, the structure that removably connects 5 can prevent that stator 3 is towards deviating from away from the direction of circuit board 4, and the stud bump 63 of button rubber cushion 61 is embedded in the button through hole 2, relative with key switch 62 positions near part relative with stud bump 63 positions on the side of circuit board 4 on the button rubber cushion 61, when structure 5 prevents that stator 3 courts from deviating from away from the direction of circuit board 4 so removably connect, can't can block button rubber cushion 61 again towards the stator of deviating from away from the direction of circuit board 43, and then preventing button rubber cushion 61 towards deviating from away from the direction of circuit board 4, structure 5 can reach by stator 3 and prevent that button rubber cushion 61 is towards the technique effect of deviating from away from the direction of circuit board 4 so the present invention removably connects;
Simultaneously, because the structure 5 that removably connects among the present invention is arranged on stator 3 edges near on circuit board 4 one sides and the casing 1, on the structure that removably connects 5 and vacant stator 3 edges away from the area of a side of circuit board 4, and, utilize stator 3 edges also can not have influence on the outward appearance of product near the space of circuit board 4 one sides, so among the present invention casing 1 need not with the steel disc edge on lean away from a side of circuit board 4, even the width dimensions on casing 1 and edge, steel disc edge design hour, casing 1 also can not occur can't firmly cause button rubber cushion 61 easily to take place from the problem of deviating from away from the direction of circuit board 4 stator 3 and 61 fixings of button rubber cushion reliably, so solved the technical problem of existing keystroke fixing structure poor reliability.
As shown in Figure 9, as the preferred implementation of present embodiment, the structure that removably connects in the present embodiment 5 comprises at least one fixedly convex edge 31 and at least one grab 11, wherein:
Fixedly the edge of convex edge 31 and stator 3 is connected mutually as shown in figure 10, and fixedly extend towards the direction near circuit board 4 convex edge 31, and each fixedly offers at least one fixing hole 32 as shown in Figure 7 on the convex edge 31;
As Figure 14, Figure 15 and shown in Figure 16, grab 11 is fixedly arranged on the casing 1 near on circuit board 4 one sides, and grab 11 is embedded in as in Figure 19, Figure 20 and the fixing hole shown in Figure 21 32.
The stator 3 that the fit structure of grab 11 and fixing hole 32 not only can prevent from being connected mutually with fixing convex edge 31 is towards deviating from away from the direction of circuit board 4, and then the button rubber cushion 61 that fixes of the sheet 3 that prevents from being fixed is towards deviating from away from the direction of circuit board 4, and the fit structure of grab 11 and fixing hole 32 also has simple in structure, the convenient advantage of making.
Certainly, the structure 5 that removably connects as shown in Figure 9 in the present embodiment can also have multiple other execution mode, for example: fixing hole 32 as shown in figure 10 can be opened on the casing 1, this moment, fixing hole 32 both can be counterbore, also can for the similar groove of counterbore, simultaneously, grab 11 can be arranged at fixedly on the convex edge 31.And for example: in the present embodiment can also as Figure 22 with shown in Figure 23 set firmly in fixing convex edge 31 at least one terminal all towards away from the direction extension of circuit board 4 and with grab 11 stay hook 33 of interlock mutually.Use stay hook 33 and the fit structure of grab 11 to substitute the matching mechanism of fixing hole 32 and grab 11, like this, also can reach the technique effect identical or close with the fit structure of fixing hole 32 with above-mentioned grab 11.
In the present embodiment fixedly convex edge 31 both can be connected mutually near circuit board 4 one sides with the edge of stator 3, after also can being connected with the edge of stator 3 again towards near circuit board 4 one lateral bucklings.No matter fixedly convex edge 31 is connected near circuit board 4 one sides mutually with the edge of stator 3, still after being connected with the edge of stator 3 again towards near circuit board 4 one lateral bucklings, fixedly convex edge 31 and fixedly on convex edge 31 and the casing 1 removably connect structure 5 all on vacant stator 3 edges away from the area of a side of circuit board 4, all can more take full advantage of stator 3 edges near the space of circuit board 4 one sides.
As shown in figure 10, as further improvement of this embodiment, the end of grab 11 passes fixing hole 32 and this end and extends towards the direction near circuit board 4 in the present embodiment.In this structure since the end limit of grab 11 fixedly convex edge 31 along with stator 3 parallel plane directions on move, so the fit structure of grab 11 and fixing hole 32 can also prevent the stator 3 that is connected mutually with fixing convex edge 31 and be offset with stator 3 parallel plane directions, and then can also further improve the positional precision of button rubber cushion 61 and key switch 62.
As Figure 11, Figure 12 and shown in Figure 13, casing 1 be integral structure with grab 11, and/or, as Figure 17, Figure 18 and stator shown in Figure 19 3 and fixedly convex edge 31 be integral structure.
Not only the each several part bonding strength is reliable for integral structure, and can adopt the one-shot forming technique manufacturing, and it is higher to make efficient.Casing 1 is preferably plastic material with grab 11 and makes in the present embodiment, so can adopt same mould, one-shot forming produces the casing 1 that has grab 11.Stator 3 is preferably metal material with fixing convex edge 31 and makes, and can use same sheet metal bending, be stamped to form.
As Figure 20 and shown in Figure 21, fixedly there is angle β between convex edge 31 and the stator 3, the angle value of angle β is between 80 °～110 °, is preferably 95 °.Fixedly the angle β between convex edge 31 and the stator 3 is between 80 °～110 ° the time, and is more laborsaving when casing 1 is pressed into stator 3 on the one hand; On the other hand, use the bending of sheet metal, punching press fixedly when convex edge 31 and stator 3, this angle is more convenient to create.
As Fig. 2, Fig. 3 and shown in Figure 4, the portable mobile termianl that the embodiment of the invention provides comprises keystroke fixing structure, the button 6 that the invention described above embodiment provides and the circuit board 4 that is positioned at casing 1, and casing 1 is the fore shell of this portable mobile termianl.
Because the identical technical characterictic of keystroke fixing structure that provides with the invention described above embodiment is provided the present embodiment portable mobile termianl, so also can produce identical technique effect, solves identical technical problem.
As Fig. 9 and shown in Figure 10, on the casing 1 that the structure that removably connects 5 is arranged at button 6 peripheries and the edge of stator 3.The structure that removably connects in this structure 5 can form matching relationship with the many places, edge of many places and stator 3 on the casing 1 of button 6 peripheries, thereby the more efficiently stator 3 that prevents is deviate from the direction away from circuit board 4.
As Fig. 2, Fig. 3 and shown in Figure 4, portable mobile termianl also comprises as Figure 17, Figure 18 and keycap shown in Figure 19 8, light guide sheet 9, FPC (flexible circuit board in the present embodiment, Flexible Printed Circuit) 10, conducting resinl 12, steel plate 13 and back cover 14, wherein: keycap 8 is fixedly arranged on stud bump 63 and is embedded in the button through hole 2 and on the direction away from circuit board 4 and extends button through hole 2; Light guide sheet 9 positions are between Dome and button rubber cushion 61; Dome is electrically connected with circuit board 4 by FPC10; Relative two sides, steel plate 13 positions link to each other with electro-magnetic shielding cover and FPC10 on the circuit board 4 by conducting resinl 12 respectively; Offer on the back cover 14 for the battery compartment of placing battery, also be removably connected with battery cover 15 on the back cover around the battery compartment, and also removably connect between back cover and the fore shell.
Certainly, the keystroke fixing structure that provides of above-mentioned present embodiment also can be applied to the button on the electronic equipment that outside the fixing portable mobile termianl other are provided with button.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (5)
1. keystroke fixing structure is characterized in that: comprise casing, offer the stator of at least one button through hole and can prevent that described stator is towards the structure that removably connects of deviating from away from the direction of circuit board, wherein:
Button comprises button rubber cushion and at least one key switch, is provided with the circuit board that is electrically connected with described key switch in the described casing;
Be installed with the stud bump that at least one is spirogyrate on the described button rubber cushion, described stud bump is embedded in the described button through hole, and relative with described key switch position near part corresponding with described stud bump position on the side of described circuit board on the described button rubber cushion;
The described structure that removably connects is arranged on the described stator edge near on described circuit board one side and the described casing;
The described structure that removably connects comprises at least one fixedly convex edge, at least one stay hook and at least one grab, wherein:
Described fixedly convex edge is connected mutually with the edge of described stator, and described fixedly convex edge is towards extending near the direction of described circuit board, and described stay hook is connected mutually with described fixedly convex edge, each described stay hook terminal all towards the direction extension away from described circuit board;
Described grab is fixedly arranged on the casing near on described circuit board one side, and the end of described grab extends towards the direction near circuit board, and should end and the interlock of described stay hook phase.
2. keystroke fixing structure according to claim 1, it is characterized in that: described key switch is the Dome sheet.
3. keystroke fixing structure according to claim 1, it is characterized in that: described stator is steel disc.
4. portable mobile termianl, it is characterized in that: comprise the arbitrary described keystroke fixing structure of claim 1 to 3, described button and the described circuit board that is positioned at described casing, described casing is the fore shell of this portable mobile termianl.
5. portable mobile termianl according to claim 4 is characterized in that: the described structure that removably connects is arranged on the edge of the described casing of described button periphery and described stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255328 CN101908429B (en) | 2010-08-17 | 2010-08-17 | Keystroke fixing structure and portable mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010255328 CN101908429B (en) | 2010-08-17 | 2010-08-17 | Keystroke fixing structure and portable mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101908429A CN101908429A (en) | 2010-12-08 |
| CN101908429B true CN101908429B (en) | 2013-08-28 |
Family
ID=43263858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010255328 Expired - Fee Related CN101908429B (en) | 2010-08-17 | 2010-08-17 | Keystroke fixing structure and portable mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101908429B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717333A (en) * | 2015-03-27 | 2015-06-17 | 惠州Tcl移动通信有限公司 | Detachable panel assembly and narrow frame mobile phone |
| CN105545092B (en) * | 2016-03-04 | 2018-11-13 | 苏州琨山通用锁具有限公司 | Electronic lock touch screen button board fixing structure |
| CN206116247U (en) * | 2016-09-29 | 2017-04-19 | 深圳创维数字技术有限公司 | Key structure of electronic product |
| CN106888294A (en) * | 2017-04-10 | 2017-06-23 | 青岛智能通电子科技有限公司 | A kind of portable intelligent mobile phone |
| CN107492460B (en) * | 2017-09-22 | 2019-08-13 | 深圳市沃特沃德股份有限公司 | Key fixation kit and mobile device |
| CN107666822B (en) * | 2017-09-22 | 2019-10-08 | 深圳市沃特沃德股份有限公司 | Antistatic component and mobile device |
| CN114026667A (en) * | 2019-06-28 | 2022-02-08 | 海能达通信股份有限公司 | Key assembly and electronic equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201294173Y (en) * | 2008-12-01 | 2009-08-19 | 青岛海信电器股份有限公司 | Key structure and electronic equipment |
| CN201387827Y (en) * | 2009-02-18 | 2010-01-20 | 青岛海信移动通信技术股份有限公司 | Key support film and key component of portable mobile terminal |
| CN101635211B (en) * | 2009-08-19 | 2013-01-09 | 青岛海信移动通信技术股份有限公司 | Kay structure and portable mobile terminal |
-
2010
- 2010-08-17 CN CN 201010255328 patent/CN101908429B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101908429A (en) | 2010-12-08 |
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