CN205810630U - Thin film switch and mobile terminal - Google Patents
Thin film switch and mobile terminal Download PDFInfo
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- CN205810630U CN205810630U CN201620686894.9U CN201620686894U CN205810630U CN 205810630 U CN205810630 U CN 205810630U CN 201620686894 U CN201620686894 U CN 201620686894U CN 205810630 U CN205810630 U CN 205810630U
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- fixed contact
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- thin film
- groove
- metal clips
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Abstract
This utility model relates to electronic technology field, particularly relates to a kind of thin film switch and mobile terminal.This thin film switch, including wiring board, metal clips and thin film, this wiring board is provided with the first fixed contact portion and the second fixed contact portion, this wiring board is provided with groove, in the grooves, this metal clips is installed in groove, when this metal clips is depressed for first fixed contact portion and the second fixed contact portion, this the first fixed contact portion and the conducting of the second fixed contact portion, this film cover envelope groove.This mobile terminal, including key switch, this key switch is thin film switch described above.Thin film switch and mobile terminal that this utility model embodiment provides pass through to arrange groove in the circuit board, and the first fixed contact portion, the second fixed contact portion and metal clips are arranged in groove, then it is achieved the sealing to groove by film cover envelope groove, its simple in construction, has good sealing effectiveness and water resistance.
Description
Technical field
This utility model relates to electronic technology field, particularly relates to a kind of thin film switch and mobile terminal.
Background technology
Thin film switch (also referred to as button touch-switch) on existing mobile phone is usually modular construction, outside will switching
Shell, thin film, metal clips (also referred to as metal dome) and contact are integrated integral, then the pin weldering will drawn from switch housing
Connect in the circuit board, it is achieved the function of switch.This thin film switch structure volume size is big, if size being done little, can only adopt
Use single metal shell fragment, but the life-span of single metal shell fragment is unable to reach requirement.And could need to realize thin by welding sequence
The installation of membrane switch, reduces production efficiency.
Additionally, in order to realize waterproof effect, need to seal at the surrounding point glue of thin film switch.This realize waterproof mode and have
There is following defect: one, some glue operating process is complicated, and time-consuming, production efficiency is low；Its two, glue for dispensing glue is easily accessible thin
The inside of membrane switch, causes switch triggering abnormal, its three, sealing effectiveness is bad, and waterproof effect is the best.
Summary of the invention
In order to overcome the best problem of waterproof effect in prior art, this utility model provides a kind of thin film switch, including
Wiring board, metal clips and thin film, this wiring board is provided with the first fixed contact portion and the second fixed contact portion, this metal clips
Time depressed, this first fixed contact portion and the conducting of the second fixed contact portion, this wiring board is provided with groove, and first is fixing tactile
In the grooves, this metal clips is installed in groove for some portion and the second fixed contact portion, this film cover envelope groove.
This utility model embodiment additionally provides a kind of mobile terminal, and including key switch, this key switch is above-mentioned institute
The thin film switch stated.
The thin film switch that this utility model embodiment provides passes through to arrange groove in the circuit board, and by the first fixed contact
Portion, the second fixed contact portion and metal clips are arranged in groove, are then achieved groove by film cover envelope groove
Sealing, its simple in construction, there is good sealing effectiveness and water resistance, and reduce the height of thin film switch.
The mobile terminal that this utility model embodiment provides applies above-mentioned thin film switch to possess all of this thin film switch
Advantageous Effects.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, required in embodiment being described below
Accompanying drawing to be used is briefly described, and the accompanying drawing in describing below is only embodiments more of the present utility model, for this
From the point of view of the those of ordinary skill of field, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 shows the schematic perspective view of the present embodiment；
Fig. 2 shows the three-dimensional signal exploded view of the present embodiment；
Fig. 3 is that the A-A structure of Fig. 1 cuts open schematic diagram；
Fig. 4 is the schematic diagram after decomposing each parts on the basis of Fig. 3.
Detailed description of the invention
In order to make this utility model be solved the technical problem that, technical scheme and beneficial effect clearer, below
In conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that described herein being embodied as
Example, only in order to explain this utility model, is not used to limit this utility model.
Embodiment one:
Refering to Fig. 1 and Fig. 2 one thin film switch, including wiring board 1, metal clips 2 (also referred to as metal dome) and thin film 3,
This wiring board 1 is provided with the first fixed contact portion 11 and the second fixed contact portion 12, and this wiring board 1 is provided with groove 13, and first
Fixed contact portion 11 and the second fixed contact portion 12 are positioned in groove 13, and this metal clips 2 is installed in groove 13, this metal elastic
When sheet 2 is depressed, this first fixed contact portion 11 turns on the second fixed contact portion 12, this thin film 3 lid envelope groove 13.
Refering to Fig. 3 and Fig. 4, this groove 13 from the surface 14 of wiring board to the inner recess of wiring board 1, say, that from
The surface 14 of wiring board forms this groove 13 to the inner recess of wiring board 1, forms this groove 13 in the surface 14 of wiring board
Opening 131, this thin film 3 cover opening 131 with realize this thin film 3 lid envelope groove 13.Metal clips 2 passes in and out recessed through opening 131
Groove 13.
This thin film 3 includes central part 31 and the edge 32 around central part 31, and this central part 31 covers opening 31, this limit
Portion 32 engages with the surface 14 of wiring board.
This thin film 3 is plastic sheeting, and this edge 32 engages by the way of welding with the surface 14 of wiring board.The present embodiment
In, the mode of welding includes but not limited to heat welded, laser welding, ultrasonic fusing.
This first fixed contact portion 11 and the second fixed contact portion 12 are all located at the bottom 132 of groove.
This first fixed contact portion 11 is rounded, this second fixed contact portion 12 ringwise, this second fixed contact portion 12
Surround the first fixed contact portion 11, and the second fixed contact portion 12 is separated from one another with the first fixed contact portion 11.
This metal clips 2 is disc-shaped.
The edge 21 of this metal clips remains with the second fixed contact 12 and contacts, the arch top of this metal clips
22 tops being positioned at the first fixed contact portion 11, when metal clips 2 is depressed, arch top 22 is towards the first fixed contact
Portion 11 moves and contacts with the first fixed contact portion 11, realizes the second fixed contact portion 12 and the first fixed contact portion 11 therefrom
Conducting；In release metal clips 2 after, first fixed contact portion 11 dorsad, arch top 22 move and away from the first fixed contact
Portion 11 is to depart from the first fixed contact portion 11 so that the first fixed contact portion 11 disconnects with the second fixed contact portion 12.
Male member 4 it is provided with between thin film 3 and metal clips 2.Effect pressure on the membrane 3 is transferred to gold through male member 4
Belong to shell fragment 2, during to realize pressing thin film, press metal clips 2.In the present embodiment, thin film 3 is identical with the material of male member 4
, thin film 3 and convex are shown in that 4 are bonded together also by welding mode.The male member of the present embodiment can promote pressing the life-span and
Feel.
The quantity of this metal clips 2 is multi-disc, and these metal clips 2 are layered in groove 13.Figure shows 3 metals
Shell fragment 2, but, the quantity of metal clips 2 is not limited in figure the number shown, the such as quantity of metal clips 2 can be 1,
2,4,5 etc..The present embodiment (is especially parallel to metal clips pressing side at the volume size ensureing suitable thin film switch
To the size of short transverse) in the case of by arranging multi-disc metal clips 2 to improve the stability of thin film switch, reliability
And service life.
In the present embodiment, wiring board 1 includes but not limited to FPC, Rigid Flex, hardboard, ceramic substrate.The present embodiment
The molding mode of groove 13 can by emptying, the technique such as molding makes.The present embodiment is coordinated by thin film 3 and groove 13,
Making thin film 3 and groove 13 surround a space sealed, metal clips 2 and male member 4 are limited in this sealing space by thin film 3
In.
The present embodiment passes through to arrange groove 13 on wiring board 1, and by the 11, second fixed contact portion of the first fixed contact portion
12 and metal clips 2 be arranged in groove 13, then by thin film 3 lid envelope groove 13 be achieved the sealing to groove 13,
It can reduce switch whole height and can reach water-proof function.
The present embodiment cancels the pin of existing thin film switch, uses the first fixed contact portion on wiring board (also can claim
For golden finger), the second fixed contact portion (alternatively referred to as golden finger), metal clips press after realize conducting.
The thin film switch of the present embodiment, without assembling in the circuit board by the way of welding, improves production efficiency；And it is real
Existing thin film switch integral sinking, makes thin film switch application height reduction, simple in construction.
The thin film switch of the present embodiment can be assembled by following flow process:
1, the first fixed contact portion and the second fixed contact portion contact terminal are formed in wiring board, are especially formed at
The bottom of the groove of circuit；
2,3 metal clips are sequentially placed in groove；
3, by male member welding on thin film；
4, thin film is covered the opening part at groove；
5, by thin film welding on the surface of wiring board.
Embodiment two:
A kind of mobile terminal, including key switch, this key switch is the thin film switch described in above-described embodiment one.Its tool
Body structure sees embodiment one, the most no longer describes in detail.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (11)
1. a thin film switch, including wiring board, metal clips and thin film, this wiring board is provided with the first fixed contact portion and
Two fixed contact portions, when this metal clips is depressed, this first fixed contact portion and the conducting of the second fixed contact portion, its feature
It is,
This wiring board is provided with groove, and in the grooves, this metal clips is pacified for the first fixed contact portion and the second fixed contact portion
It is loaded in groove, this film cover envelope groove.
Thin film switch the most according to claim 1, it is characterised in that
This groove to the inner recess of wiring board, forms the opening of this groove from the surface of wiring board in the surface of wiring board, should
Thin film covers opening.
Thin film switch the most according to claim 2, it is characterised in that
This thin film includes central part and the edge around central part, and this central part covers the table of opening, this edge and wiring board
Face engages.
Thin film switch the most according to claim 3, it is characterised in that
This thin film is plastic sheeting, and this edge engages by the way of welding with the surface of wiring board.
5. according to the thin film switch described in claim any one of Claims 1-4, it is characterised in that this first fixing touches
Point portion and the second fixed contact portion are all located at the bottom of groove.
6. according to the thin film switch described in claim any one of Claims 1-4, it is characterised in that
This first fixed contact portion is rounded, and ringwise, it is solid that this second fixed contact portion surrounds first in this second fixed contact portion
Fixed contact portion, and the second fixed contact portion is separated from one another with the first fixed contact portion.
7. according to the thin film switch described in claim any one of Claims 1-4, it is characterised in that
This metal clips is disc-shaped.
8. according to the thin film switch described in claim any one of Claims 1-4, it is characterised in that
Edge and the second fixed contact portion of this metal clips remain contact, and the arch top of this metal clips is positioned at first
The top in fixed contact portion, when metal clips is depressed, arch top is towards the motion of the first fixed contact portion and with first
Fixed contact portion contacts.
9. according to the thin film switch described in claim any one of Claims 1-4, it is characterised in that
Male member it is provided with between thin film and metal clips.
10. according to the thin film switch described in claim any one of Claims 1-4, it is characterised in that this metal clips
Quantity is multi-disc, and these metal clips stackings are in a groove.
11. 1 kinds of mobile terminals, including key switch, it is characterised in that this key switch is thin described in claim 1 to 10
Membrane switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686894.9U CN205810630U (en) | 2016-06-30 | 2016-06-30 | Thin film switch and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686894.9U CN205810630U (en) | 2016-06-30 | 2016-06-30 | Thin film switch and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205810630U true CN205810630U (en) | 2016-12-14 |
Family
ID=57512380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620686894.9U Active CN205810630U (en) | 2016-06-30 | 2016-06-30 | Thin film switch and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205810630U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935433A (en) * | 2017-04-10 | 2017-07-07 | 合肥梦飞电器有限公司 | Light and thin type keypad |
| CN107968008A (en) * | 2017-11-30 | 2018-04-27 | 徐欣欣 | A kind of water proof and dust proof button |
| CN108284796A (en) * | 2017-01-10 | 2018-07-17 | 比亚迪股份有限公司 | Anti-pinch device and elevating mechanism, vehicle with it |
| CN109088331A (en) * | 2018-07-25 | 2018-12-25 | 泸州天灵开关有限公司 | A kind of waterproof anti-corrosion switchgear of easy access |
-
2016
- 2016-06-30 CN CN201620686894.9U patent/CN205810630U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284796A (en) * | 2017-01-10 | 2018-07-17 | 比亚迪股份有限公司 | Anti-pinch device and elevating mechanism, vehicle with it |
| CN106935433A (en) * | 2017-04-10 | 2017-07-07 | 合肥梦飞电器有限公司 | Light and thin type keypad |
| CN107968008A (en) * | 2017-11-30 | 2018-04-27 | 徐欣欣 | A kind of water proof and dust proof button |
| CN109088331A (en) * | 2018-07-25 | 2018-12-25 | 泸州天灵开关有限公司 | A kind of waterproof anti-corrosion switchgear of easy access |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |