CN202135176U - Casing main surface for handset - Google Patents
Casing main surface for handset Download PDFInfo
- Publication number
- CN202135176U CN202135176U CN201120207974U CN201120207974U CN202135176U CN 202135176 U CN202135176 U CN 202135176U CN 201120207974 U CN201120207974 U CN 201120207974U CN 201120207974 U CN201120207974 U CN 201120207974U CN 202135176 U CN202135176 U CN 202135176U
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- CN
- China
- Prior art keywords
- button
- interarea
- casing main
- machine shell
- casing
- 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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Abstract
The utility model discloses a casing main surface for a handset, used for being fastened on the casing main bottom of the handset. A button plastic part is arranged between the casing main surface and the casing main bottom, a first taper angle and a second taper angle with respect to the side surface of the edge of the button plastic part are arranged on the casing main surface, and an inclined transition surface is arranged between the first taper angle and the second taper angle. The casing main surface is characterized in that a right angle of a step in the current main surface structure is changed into an inclined transition, greatly reducing the friction of a button sidewall, the button sidewall is only slightly worn after 400 thousands of use, and the surface has no crack, thus passing the button service life test, and providing reference for the design of subsequent silica gel buttons.
Description
Technical field
The utility model relates to hand set machine shell, relates in particular to the improvement of mobile phone interarea structure.
Background technology
In the prior art, the mobile phone assembling need fasten casing interarea and casing bottom surface, and the button plastic parts is fastened between casing interarea and the casing bottom surface.For guaranteeing the easy of assembling; On casing interarea and button plastic parts, all withdrawing pattern can be set; Withdrawing pattern is exactly in order to guarantee the mould product demoulding and be provided with have certain drafting angle smoothly in producing the process of product, and the pattern draft of hand set machine shell interarea and the pattern draft of button are just opposite.
When the button plastic parts when higher, (general drafting angle is about 3 degree, and is not smooth less than 3 degree product depannings; The gap of button and fore shell is 0.2mm in addition, is assigned to button so here, is the gap of 0.1mm; According to formula: gap=tan (3 degree) * button height; Button height=gap/tan (3 degree)=0.1/0.0524=1.9mm is so if the button height greater than 1.9mm, then is higher button).The lower end generally can be provided with the gap in order to assemble between casing interarea and button plastic parts, the hesitation of upper end, the side at relative button plastic parts edge is formed with two draft angles on the casing interarea thus; See also Fig. 1 and shown in Figure 4, do not produce too big (general silica gel push-button is the 0.2mm gap, and the P+R button is 0.1-0.15mm) in order to make interarea and button plastic parts gap; Generally on interarea, design a step 13, the front mould on the step adopts positive withdrawing pattern (first withdrawing pattern of stating promptly 11), and the back mould under the step is negative withdrawing pattern (second withdrawing pattern of stating promptly 12); How thick no matter the button plastic parts has like this, the gap is all not too large, but has just produced problem for silica gel push-button; Because silica gel is soft, when doing button strike test, because pressurized button sidewall deforms; This step generating interference friction that causes sidewall silica gel part and interarea, after through more than 20 ten thousand times friction, worn out phenomenon takes place in button sidewall and top; As shown in Figure 2, cause test not pass through.
Therefore, prior art awaits improving and development.
Summary of the invention
The purpose of the utility model is to provide a kind of hand set machine shell interarea that can pass through push-button service-life detection.
The technical scheme of the utility model is following:
A kind of hand set machine shell interarea is used to be fastened at the bottom of the hand set machine shell master, at the bottom of said casing master with
Be set to the button plastic parts between the casing interarea, the side at button plastic parts edge is provided with first withdrawing pattern and second withdrawing pattern relatively on said casing interarea, wherein, is set to the chamfered transition face between said first withdrawing pattern and second withdrawing pattern.
Described hand set machine shell interarea, wherein, said button plastic parts is a silica gel push-button.
Described hand set machine shell interarea, wherein, the height of said button plastic parts is greater than 1.9mm.
Described hand set machine shell interarea, wherein, the angle of said inclined-plane and vertical direction is between 20 °～45 °.
Described hand set machine shell interarea, wherein, the angle of said inclined-plane and vertical direction is at 30 °.
The utility model is improved on original interarea architecture basics; Change the right angle of step into chamfered transition; Just reduce the friction of button sidewall greatly, the button sidewall only has mild wear after 400,000 times, does not break in the surface; Thereby passed through push-button service-life detection (criterion is: after 400,000 times, keytop can not see that fracture phenomena and function are arranged is intact).For the design of follow-up silica gel push-button provides reference.
Description of drawings
Fig. 1 is the inboard stereogram of existing hand set machine shell interarea.
Fig. 2 hits the position of breaking in the test back for the existing mobile phone key life-span.
Fig. 3 is the cutaway view of existing hand set machine shell interarea.
Fig. 4 is the A part enlarged drawing of Fig. 3.
Fig. 5 is the cutaway view of utility model hand set machine shell interarea.
Fig. 6 is the B part enlarged drawing of Fig. 5.
Embodiment
The utility model provides a kind of hand set machine shell interarea, for purpose, technical scheme and the effect that makes the utility model is clearer, clear and definite, below with reference to accompanying drawing and give an actual example to the utility model further explain.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, be the inboard stereogram of existing hand set machine shell interarea.Can find out that the inboard of casing interarea 10 comprises that first withdrawing pattern 11 and second withdrawing pattern, 12, the first withdrawing patterns 11 are positive withdrawing pattern, second withdrawing pattern 12 is negative withdrawing pattern, and second withdrawing pattern 12 makes that the gap between casing interarea 10 and the button is not too large.
Like Fig. 3, shown in Figure 4, form a step 13 between said first withdrawing pattern 11 and second withdrawing pattern 12, this step 13 has just produced problem for silica gel push-button; Because silica gel is soft, when doing button strike test, because the sidewall 21 of pressurized button 20 deforms; Cause step 13 generating interference friction of sidewall 21 silica gel part and casing interarea 10, after through more than 20 ten thousand times friction, as shown in Figure 2; Worn out phenomenon takes place in the sidewall 21 of button 20, causes test not pass through.
Like Fig. 5, shown in Figure 6, be the cutaway view and the partial enlarged drawing thereof of the utility model hand set machine shell interarea.Can find out that by inclined-plane 14 transition, this inclined-plane 14 has replaced above-mentioned step 13 between first withdrawing pattern 11 and second withdrawing pattern 12, the angle of inclined-plane 14 and vertical direction is between 20 °～45 °.This angle of priority scheme is 30 °.The effect on inclined-plane 14 is effectively to reduce the friction of casing interarea 10 and button 20.
More directly saying, is to change the right angle of step 13 into inclined-plane 14 transition, so just can reduce the friction with button 20 sidewalls 21 greatly; Through test; Button 20 sidewalls 21 only have only mild wear after 400,000 times, and not breaking in the surface, thereby can pass through push-button service-life detection.For the design of follow-up silica gel push-button provides reference.
Mobile phone is wherein a kind of scheme among the above embodiment, as long as use other electronic products (like remote controller, keyboard etc.) of silica gel push-button to be suitable for too, and can reach effect same.
Should be understood that, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection range of the utility model accompanying claims according to above-mentioned explanation.
Claims (5)
1. hand set machine shell interarea; Be used to be fastened at the bottom of the hand set machine shell master; Be set to the button plastic parts at the bottom of the said casing master and between the casing interarea; The side at button plastic parts edge is provided with first withdrawing pattern and second withdrawing pattern relatively on said casing interarea, it is characterized in that, is set to the chamfered transition face between said first withdrawing pattern and second withdrawing pattern.
2. hand set machine shell interarea as claimed in claim 1 is characterized in that, said button plastic parts is a silica gel push-button.
3. hand set machine shell interarea as claimed in claim 1 is characterized in that the height of said button plastic parts is greater than 1.9mm.
4. hand set machine shell interarea as claimed in claim 1 is characterized in that, the angle of said inclined-plane and vertical direction is between 20 °～45 °.
5. hand set machine shell interarea as claimed in claim 4 is characterized in that, the angle of said inclined-plane and vertical direction is 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207974U CN202135176U (en) | 2011-06-20 | 2011-06-20 | Casing main surface for handset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207974U CN202135176U (en) | 2011-06-20 | 2011-06-20 | Casing main surface for handset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202135176U true CN202135176U (en) | 2012-02-01 |
Family
ID=45523932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120207974U Expired - Fee Related CN202135176U (en) | 2011-06-20 | 2011-06-20 | Casing main surface for handset |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202135176U (en) |
-
2011
- 2011-06-20 CN CN201120207974U patent/CN202135176U/en not_active Expired - Fee Related
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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: 20120201 Termination date: 20130620 |