CN209388928U - The press button mechanism and keyboard and mobile terminal of mobile terminal - Google Patents
The press button mechanism and keyboard and mobile terminal of mobile terminal Download PDFInfo
- Publication number
- CN209388928U CN209388928U CN201920119006.9U CN201920119006U CN209388928U CN 209388928 U CN209388928 U CN 209388928U CN 201920119006 U CN201920119006 U CN 201920119006U CN 209388928 U CN209388928 U CN 209388928U
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- pet film
- press button
- button mechanism
- dome piece
- sheet metal
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Abstract
The utility model provides a kind of press button mechanism of mobile terminal, the press button mechanism includes multi-layer compound structure, it is distributed in punching press convex closure on different pet layers, it effectively prevents because convex closure excessively leads to PET film fold, film thickness unevenness problem caused by punching course on single-layer PET film, overall tightness after being bonded is improved, to improve the waterproof performance of the application；It also solves the problems, such as to produce using automation apparatus because convex closure cannot excessively use machine to mount metal dome automatically on single-layer PET film, improve production efficiency simultaneously.The setting of air slot effectively increases feel and sensitivity when DOME key press.
Description
Technical field
This application involves the waterproof technique of mobile terminal more particularly to a kind of press button mechanisms of mobile terminal, a kind of movement
The keyboard of terminal and a kind of mobile terminal.
Background technique
With the development of terminal device, terminal device requires also higher and higher, the waterproof from non-watertight to daily, then arrives profession
The waterproof of grade, therefore have higher requirement for the waterproofing design of key, existing structure cannot fully meet the demand of waterproof,
And existing DOME (metal dome) key waterproof product cannot use automated production, produce low with packaging efficiency.
Utility model content
The utility model provides a kind of press button mechanism of mobile terminal, effectively increases the waterproof of traditional DOME press-key structure
The production efficiency of performance and assembling metal dome process.
The above-mentioned press button mechanism of the utility model includes:
Circuit board, the circuit board layout have component；
Key DOME piece, the key DOME piece are set to the circuit board and are located at the circuit with the component
The same surface of plate；
First PET (polyethylene terephthalate) film, first PET film are adhered to the circuit board with described
The surface of component and the key DOME piece, wherein first PET film have avoid the component avoid holes, with
And accommodate the Sheet Metal Forming Technology slot of the key DOME piece；
Second PET film, second PET film are adhered to first PET film, wherein second PET film has cladding
The Sheet Metal Forming Technology convex closure of the component and the opening of the exposure Sheet Metal Forming Technology slot.
Optionally, the Sheet Metal Forming Technology slot has and the matched shape of key DOME piece.
Optionally, the Sheet Metal Forming Technology slot is bonded with the key DOME piece.Preferably, the Sheet Metal Forming Technology slot is further
It is Nian Jie with the key DOME piece.
Optionally, the adhesive layer between the Sheet Metal Forming Technology slot and the key DOME piece with a thickness of 0.15mm~
0.3mm。
Optionally, first PET film is adhered to the circuit board by the first independent foaming structure glue-line, wherein institute
The first independent foaming structure glue-line is stated to avoid the component and the key DOME piece aperture；Also,
Second PET film is adhered to first PET film by the second independent foaming structure glue-line, wherein described
Two independent foaming structure glue-lines avoid the component and the Sheet Metal Forming Technology slot aperture.
Optionally, the key DOME piece includes multiple, and the first independent foaming structure glue-line has corresponding multiple
Key DOME piece avoid holes.
Optionally, the described first independent foaming structure glue-line further have the multiple key DOME piece avoid holes it
Between the air slot that is connected to.
A kind of keyboard of mobile terminal, including press button mechanism as described above.
A kind of mobile terminal, including above-mentioned keyboard.
To which press button mechanism provided by the utility model is distributed in Sheet Metal Forming Technology convex closure not by multi-layer compound structure
With on pet layer, effectively preventing excessively causing because of single layer convex closure PET film fold, film thickness unevenness problem caused by punching course, mention
Overall tightness after high fitting, to improve the waterproof performance of the press button mechanism；It is not also solved simultaneously because of convex closure excessively not
It the problem of machine capable of being used to mount metal dome automatically, is produced using automation apparatus, improves production efficiency.
The setting of air slot is conducive to the gas flowing of key DOME piece inner cavity, to effectively increase key DOME piece
Feel and sensitivity when pressing.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is tradition DOME press-key structure sectional side view；
Fig. 2 is the embodiment of the present application overall structure of the explosion figure；
Fig. 3 is the embodiment of the present application sectional side view；
Fig. 4 (a) is continuous foamed structure double-sided adhesive schematic diagram of internal structure；
Fig. 4 (b) is independent foaming structure double-sided adhesive schematic diagram of internal structure.
Appended drawing reference:
10 circuit boards
100 components
20 key DOME pieces
31 first independent foaming structure glue-lines
310 DOME piece avoid holes
311 air slots
30 first PET films
300 Sheet Metal Forming Technology slots
41 second independent foaming structure glue-lines
40 second PET films
400 Sheet Metal Forming Technology convex closures
The continuous foamed structure stomata of 3'
31' independence foaming structure stomata
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, develop simultaneously implementation referring to the drawings
The utility model is further described in example.
It is found through analysis, the waterproof performance of DOME press-key structure is weak, is primarily due to be easy to appear PET in DOME press-key structure
Film deformation and the serious non-uniform situation of wall thickness cause waterproof performance to decline to influence the integral adhesive power after fitting.Together
When, PET film is easy to appear local deformation in the excessive convex closure of punching press, and the main reason for influence the assembly efficiency of DOME piece it
One.
For example, referring to Figure 1, on PET film 4 including for being bonded the convex closure 4a of key DOME piece 2 and cladding component 5
Convex closure 4b, PET film 4 are adhered to circuit board 1 by double-sided adhesive 3, realize waterproof by the sealing of double-sided adhesive 3 and circuit board 1.
Therefore, in order to improve DOME press-key structure waterproof performance and assembling DOME piece production efficiency, subordinate's embodiment
In be dedicated to improve PET film flatness.
Attached drawing 2 and attached drawing 3 are referred to, in one embodiment, a kind of press button mechanism of mobile terminal includes: circuit board
10, key DOME piece 20, the first PET film 30, the second PET film 40.
Wherein, circuit board layout has a component 100, key DOME piece 20 be set to circuit board 10 and with component 100
In the same surface of circuit board 10.First PET film 30 is adhered to the table that circuit board 10 has component 100 and key DOME piece 20
Face.Further, the first PET film 30 has the avoid holes of evacuation component and accommodates the Sheet Metal Forming Technology slot of key DOME piece
300.Second PET film 40 is adhered to the first PET film 30, wherein the second PET film 40 has the Sheet Metal Forming Technology of cladding component 100
The opening of convex closure and exposure Sheet Metal Forming Technology slot 300.
Preferably, Sheet Metal Forming Technology slot 300 have with the matched shape of key DOME piece 20, Sheet Metal Forming Technology slot 300 is further
It is Nian Jie with key DOME piece 20, and adhesive layer with a thickness of 0.15mm~0.3mm.
Press button mechanism provided by the utility model makes Sheet Metal Forming Technology slot and Sheet Metal Forming Technology convex closure point by multi-layer compound structure
Cloth effectively prevents excessively causing because of single layer convex closure PET film fold caused by punching course, film thickness uneven on different pet layers
Problem improves overall tightness after fitting, to improve the waterproof performance of the press button mechanism；It also solves because of convex closure simultaneously
It the problem of cannot excessively machine being used to mount metal dome automatically, is produced using automation apparatus, improves production efficiency.
Further, the first PET film 30 is adhered to circuit board by the first independent foaming structure glue-line 31 in the embodiment
10, wherein the first independent foaming structure glue-line 31 avoids component 100 and 20 aperture of key DOME piece；Also,
Second PET film 40 is adhered to the first PET film 30 by the second independent foaming structure glue-line 41, wherein second is independent
Foaming structure glue-line 41 avoids component 100 and 300 aperture of Sheet Metal Forming Technology slot.
Specifically, Fig. 4 (a) and Fig. 4 (b) are referred to, different from continuous foamed structure, independent foaming structure glue-line has hair
Bubble uniformly, close structure, waterproof the advantages that, surface irregularity situation caused by circuit layout can be effectively filled up, to improve
The waterproof performance of DOME press button mechanism.
Wherein, key DOME piece 20 includes multiple, and the first independent foaming structure glue-line 31 has corresponding multiple keys
DOME piece avoid holes 310.Preferably, the first independent foaming structure glue-line 31 further has in multiple key DOME piece avoid holes
The air slot 311 being connected between 310.
To which when key DOME piece 20 is pressed, bottom air can be guided by air slot, and key DOME piece replys deformation
When, air can be refilled back by air slot.The setting of air slot is conducive to the gas flowing of key DOME piece inner cavity, from
And effectively increase the feel and sensitivity when the pressing of key DOME piece.
During practical set, the first PET film 30, the second PET film 40 and the first independent foaming structure glue-line 31, second are solely
Vertical foaming structure glue-line 41 integrally covers diaphragm in circuit board table by cross cutting applying method fitting, then by pressure maintaining jig
Face.
10 surface of circuit board carries out activating process processing, and circuit board overall surface energy can be improved, and makes the first independent foaming
Structural adhesive layer 31 is bonded more reliable with circuit board 10.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (10)
1. a kind of press button mechanism of mobile terminal, which is characterized in that the press button mechanism includes:
Circuit board (10), the circuit board (10) are disposed with component (100)；
Key DOME piece (20), the key DOME piece (20) be set to the circuit board (10) and with the component (100)
Same surface positioned at the circuit board (10)；
First PET film (30), first PET film (30) be adhered to the circuit board (10) with the component (100) and
The surface of the key DOME piece (20), wherein first PET film (30) has the evacuation for avoiding the component (100)
Hole and the Sheet Metal Forming Technology slot (300) for accommodating the key DOME piece (20)；
Second PET film (40), second PET film (40) are adhered to first PET film (30), wherein second PET film
(40) there is the Sheet Metal Forming Technology convex closure (400) for coating the component (100) and expose the Sheet Metal Forming Technology slot (300)
Opening.
2. press button mechanism according to claim 1, which is characterized in that the Sheet Metal Forming Technology slot (300) has presses with described
Key DOME piece (20) matched shape.
3. press button mechanism according to claim 2, which is characterized in that the Sheet Metal Forming Technology slot (300) and the key DOME
Piece (20) fitting.
4. press button mechanism according to claim 3, which is characterized in that the Sheet Metal Forming Technology slot (300) further with it is described
Key DOME piece (20) bonding.
5. press button mechanism according to claim 4, which is characterized in that the Sheet Metal Forming Technology slot (300) and the key
Adhesive layer between DOME piece (20) with a thickness of 0.15mm~0.3mm.
6. press button mechanism according to claim 1, which is characterized in that
First PET film (30) is adhered to the circuit board (10) by the first independent foaming structure glue-line (31), wherein institute
The first independent foaming structure glue-line (31) is stated to avoid the component (100) and key DOME piece (20) aperture；Also,
Second PET film (40) is adhered to first PET film (30) by the second independent foaming structure glue-line (41),
In, the second independent foaming structure glue-line (41) keeps away the component (100) and the Sheet Metal Forming Technology slot (300) aperture
It allows.
7. press button mechanism according to claim 6, which is characterized in that the key DOME piece (20) include it is multiple, it is described
First independent foaming structure glue-line (31) has corresponding multiple key DOME piece avoid holes (310).
8. press button mechanism according to claim 7, which is characterized in that the first independent foaming structure glue-line (31) is into one
Walking has the air slot (311) being connected between the multiple key DOME piece avoid holes (310).
9. a kind of keyboard of mobile terminal, which is characterized in that including press button mechanism such as described in any item of the claim 1 to 8.
10. a kind of mobile terminal, which is characterized in that including keyboard as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920119006.9U CN209388928U (en) | 2019-01-23 | 2019-01-23 | The press button mechanism and keyboard and mobile terminal of mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920119006.9U CN209388928U (en) | 2019-01-23 | 2019-01-23 | The press button mechanism and keyboard and mobile terminal of mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209388928U true CN209388928U (en) | 2019-09-13 |
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ID=67853984
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920119006.9U Active CN209388928U (en) | 2019-01-23 | 2019-01-23 | The press button mechanism and keyboard and mobile terminal of mobile terminal |
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| CN (1) | CN209388928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853953A (en) * | 2019-10-17 | 2020-02-28 | 深圳市汇创达科技股份有限公司 | Low-cost dome module processing method |
-
2019
- 2019-01-23 CN CN201920119006.9U patent/CN209388928U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853953A (en) * | 2019-10-17 | 2020-02-28 | 深圳市汇创达科技股份有限公司 | Low-cost dome module processing method |
| CN110853953B (en) * | 2019-10-17 | 2021-11-23 | 深圳市汇创达科技股份有限公司 | Low-cost dome module processing method |
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