CN103117183A - Thin type key switch - Google Patents

Thin type key switch Download PDF

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Publication number
CN103117183A
CN103117183A CN2011103653133A CN201110365313A CN103117183A CN 103117183 A CN103117183 A CN 103117183A CN 2011103653133 A CN2011103653133 A CN 2011103653133A CN 201110365313 A CN201110365313 A CN 201110365313A CN 103117183 A CN103117183 A CN 103117183A
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conductive plate
basement membrane
movable contact
contact element
plate
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CN2011103653133A
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Chinese (zh)
Inventor
郭泳甲
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Magma Co Ltd
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Magma Co Ltd
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Priority to CN2011103653133A priority Critical patent/CN103117183A/en
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Abstract

The invention provides a thin type key switch with thickness further decreased. The thin type key switch comprises an upper base membrane, a lower base membrane, a pair of a first current-conducting plate and a second current-conducting plate, an arch movable contact element, an isolation membrane and a protective membrane. The first current-conducting plate and the second current-conducting plate are arranged between the upper base membrane and the lower base membrane. The outer surfaces and the inner surfaces of the first current-conducting plate and the second current-conducting plate are respectively attached to the opposite surfaces of the upper base membrane and the lower base membrane. External contactors of the first current-conducting plate and the second current-conducting plate are exposed towards the exteriors of the upper base membrane and the lower base membrane. Fixed contactors of the first current-conducting plate and the second current-conducting plate are exposed towards the upper surface of the upper base membrane. The edge portion of the arch movable contact element is contacted with and communicated with the fixed contact of the first current-conducting plate. The top point portion of the center of the arch movable contact element is arranged above the fixed contact of the second current-conducting plate in an isolation mode. The isolation membrane is attached to the upper surface of the upper base membrane. A space portion is formed and used for containing of the movable contact element. The protective membrane is attached to the upper surface of the isolation membrane and covered on the upper surface of the movable contact element.

Description

The thin button switch
Technical field
The present invention relates to a kind of by the generation elastic deformation of arch movable contact element or recovery, by with shell in a plurality of fixed contact conductings or the mode of disconnection, realize the key switch of switching function; Illustrate for, relate to the thin button switch that a kind of thickness further reduces.
Background technology
Traditional micro press-key switch has generally adopted structure as shown in Figure 7.That is, traditional key switch comprises: embed the box shell 3 with bottom and open-top that the first metallic plate 1 and the second metallic plate 2 carry out moulding; Be contained in the arch movable contact element 4 in the inner space 3a of above-mentioned shell 3; And limit above-mentioned movable contact element 4 and move upward, and prevent that dust from invading the over cap 5 of shell 3 inner contact parts.
In addition, thus the part of the first metallic plate 1 be exposed to a part that the bottom surface of shell 3 inner space 3a forms fixed contact 6, the second metallic plates 2 expose from the bottom surface with can with the EDGE CONTACT of the movable contact element 4 of shell 3 interior lift-launchs.In addition, the first metallic plate and the second metallic plate 1,2 opposite side end expose from the outer wall of shell 3 respectively, to form external connection terminals (omitting diagram).
Above-mentioned traditional micro press-key switches set is contained on circuit board; be positioned at the downside that there is no illustrated operating body; when pressing movable contact element 4 with finger etc. from the top by the aforesaid operations body; movable contact element 4 will produce elastic deformation downwards together with over cap 5; make the summit counter-rotating of movable contact element 4; thereby contact with the fixed contact 6 of the first metallic plate 1, thereby make switching circuit change "On" state into from "Off" state.Under above-mentioned "On" state, the downforce of releasing finger etc., movable contact element 4 will restore to the original state under self elastic-restoring force effect, makes the summit of movable contact element 4 separate with the fixed contact 6 of the first metallic plate 1, thereby makes switching circuit again change "Off" state into.
But, above-mentioned traditional micro press-key switch has adopted and has embedded the first metallic plate and the second metallic plate 1,2 carries out integrated structure in making the process of shell 3, therefore, when must guaranteeing to have insert molding, the bottom of shell can bury the first metallic plate and the second metallic plate 1,2 thickness underground, in addition, the inner space 3a of shell 3 is used for accommodating the movable contact element 4 of arch, therefore, must guarantee to have the space that can hold movable contact element 4.Therefore, more than the thickness of above-mentioned traditional micro press-key switch generally was made into 3mm, its structure was difficult to further realize ultrathin.
Up to now, because above-mentioned key switch volume less, therefore be mainly used in mobile phone or other small-sized electronic product, but, nearest above-mentioned electronic product is for improving the convenience of using and carrying, require further to reduce weight and thickness, to this, it is unable to do what one wishes that traditional key switch just seems.
Summary of the invention
The present invention proposes for addressing the above problem, its objective is provide a kind of by making the generation elastic deformation of arch movable contact element or recovery with shell in fixed contact conducting or the mode of the disconnection key switch of realizing switching function, illustrate for, the thin button switch that provides a kind of thickness further to reduce is to satisfy lightweight, the ultrathin requirement of the electronic product that uses this switch.
For achieving the above object, thin button switch of the present invention comprises: upper basement membrane and lower basement membrane; A pair of the first conductive plate and the second conductive plate, should be arranged between above-mentioned upper basement membrane and lower basement membrane the first conductive plate and the second conductive plate, and the apparent surface that should be attached to respectively above-mentioned upper basement membrane and lower basement membrane to outer surface and the inner surface of the first conductive plate and the second conductive plate, should expose the make progress outside of basement membrane and lower basement membrane of external contact of the first conductive plate and the second conductive plate, the make progress upper surface of basement membrane of this fixed contact to the first conductive plate and the second conductive plate exposes; Arch movable contact element, the edge part of this arch movable contact element contact with the fixed contact of above-mentioned the first conductive plate and conducting, and the isolation above the fixed contact of the second conductive plate of the apex of the central authorities of this arch movable contact element arranges; Barrier film, this barrier film is attached on the upper surface of above-mentioned upper basement membrane, and is formed with the spatial portion that holds above-mentioned movable contact element; And diaphragm, this diaphragm is attached on the upper surface of above-mentioned barrier film, and covers the upper surface of above-mentioned movable contact element.
The feature of thin button switch of the present invention also is, above-mentioned upper basement membrane is formed with inside in the position corresponding with the fixed contact of the first conductive plate and the second conductive plate and exposes the hole, and the fixed contact of above-mentioned the first conductive plate and the second conductive plate can be exposed the hole by this inside and expose to the spatial portion of barrier film.
The feature of thin button switch of the present invention also is, also is provided with the gusset plate that is formed with through hole between basement membrane and barrier film on above-mentioned, and this through hole can make the fixed contact of the first conductive plate and the second conductive plate expose.
The feature of thin button switch of the present invention also is, also is provided with the dielectric film that is formed with through hole between above-mentioned gusset plate and above-mentioned barrier film, and this through hole can make the fixed contact of the first conductive plate and the second conductive plate expose.
The feature of thin button switch of the present invention also is, above-mentioned lower basement membrane is formed with the outside in the position corresponding with the external contact of the first conductive plate and the second conductive plate and exposes the hole, and the external contact of above-mentioned the first conductive plate and the second conductive plate can be exposed the hole by this outside and expose to the outside.
The feature of thin button switch of the present invention also is, the marginal position of above-mentioned the first conductive plate and the second conductive plate extends to form a plurality of external contact sheets that the side direction between basement membrane and lower basement membrane upwards exposes.
The feature of thin button switch of the present invention also is, this key switch comprises: the reinforcing metallic plate that arranges between above-mentioned lower basement membrane and the first conductive plate and the second conductive plate; And the dielectric film that arranges between this reinforcing metallic plate and the first conductive plate and the second conductive plate, and be formed with at the marginal position of above-mentioned reinforcing metallic plate a plurality of crooked stator that elongation is extended, thus the part upper surface of said protection film can be covered.
Thin button switch of the present invention with above-mentioned technical characterictic, stacked the first conductive plate and the second conductive plate of realizing switching function, and upper basement membrane and the lower basement membrane made by thin conductive plate and film of synthetic resin that support, thereby farthest reduced the thickness of switching device.In addition, because each building block processes by forcing press by thin conductive plate and film of synthetic resin, and fix successively above-mentioned parts to assemble by stickup means such as bonding agents, therefore compare conventional art, save manufacturing expense, simplified packing engineering, improved production efficiency.
Description of drawings
Fig. 1 is the decomposing schematic representation of the thin button switch that relates to of first embodiment of the invention.
Fig. 2 a and Fig. 2 b are the cutaway views of cutting open along A-A line in Fig. 1, for the operating state that the thin button switch that first embodiment of the invention relates to is described.
Fig. 3 is the decomposing schematic representation of the thin button switch that relates to of second embodiment of the invention.
Fig. 4 is the sectional view of the thin button switch that relates to of second embodiment of the invention.
Fig. 5 is the decomposing schematic representation of the thin button switch that relates to of third embodiment of the invention.
Fig. 6 is the assembled state schematic diagram of the thin button switch that relates to of third embodiment of the invention.
Fig. 7 is the sectional view of conventional keys switch.
Description of reference numerals
110,120,310,320: upper basement membrane, lower basement membrane
111,112: the hole is exposed in inside
121,122: the hole is exposed in the outside
130,140,330,340: the first conductive plates and the second conductive plate
131,141: external contact
132,142,332,342: fixed contact
150,350: barrier film
151,351: spatial portion
160,360: movable contact element
170,370: diaphragm
180: gusset plate
181,191: through hole
190,390: dielectric film
380: reinforce metallic plate
381: crooked stator
Embodiment
The thin button switch that with reference to the accompanying drawings specific embodiment of the invention is related to is elaborated.
[the first execution mode]
Fig. 1 and Fig. 2 a, Fig. 2 b are the schematic diagrames of the thin button switch that relates to of first embodiment of the invention, and as shown in the figure, this thin button switch comprises: upper basement membrane and lower basement membrane 110,120; The first conductive plate and the second conductive plate 130,140; Barrier film 150; Movable contact element 160; And diaphragm 170.
Upper basement membrane and lower basement membrane 110, the 120th, by insulating properties synthetic resin, the thickness that consists of as polyimides (Polyimide) is the film of 0.01-0.1mm, processes by forcing press.Upper basement membrane and lower basement membrane 110,120 material are not limited to above-mentioned polyimides, as long as the material that has insulating properties and can make film morphology all can use.
The first conductive plate and the second conductive plate 130,140 are placed between above-mentioned upper basement membrane and lower basement membrane 110,120, are by electric conducting material, and the thickness that consists of as phosphor bronze is the lamellar parts of 0.01-0.1mm, and it processes by forcing press.The first conductive plate and the second conductive plate 130,140 face shaping and size preferably with above-mentioned upper basement membrane and lower basement membrane 110,120 identical, material is not limited to above-mentioned phosphor bronze, as long as have conductivity and the material of the shape that can laminate all can use.In addition, the first conductive plate and the second conductive plate 130,140 outer surface
Figure BDA0000109351830000051
And inner surface
Figure BDA0000109351830000052
Be attached to respectively basement membrane and lower basement membrane 110,120 apparent surface, and can paste by smear bonding agent (not diagram) on upper basement membrane and lower basement membrane 110,120 apparent surface.
In addition, the first conductive plate and the second conductive plate 130,140 have respectively be used to the external contact 131 that realizes switching function, 141 and fixed contact 132,142.External contact 131,141 upwards basement membrane and lower basement membrane 110,120 outside is exposed, fixed contact 132, the 142 upwards upper surfaces of basement membrane 110 is exposed, and the first execution mode of the present invention shows the embodiment that expose the bottom surface of said external contact 131,141 downward basement membranes 120.
Namely, above-mentioned lower basement membrane 120 is forming the outside and is exposing hole 121,122 with above-mentioned the first conductive plate and the second conductive plate 130,140 external contact 131,141 corresponding positions, and above-mentioned the first conductive plate and the second conductive plate 130,140 external contact 131,141 are exposed hole 121,122 by said external and exposed to the outside.Above-mentioned the first conductive plate and the second conductive plate 130,140 external contact 131,141 are preferably carried out embossing processing by forcing press, so that its downward protrusion.Slightly protrude from the bottom surface of lower basement membrane 120 thereby make external contact 131,141 expose hole 121,122 by the outside, and then can not be electrically connected to there is no illustrated external connection terminals easily
In addition, above-mentioned upper basement membrane 110 with above-mentioned the first conductive plate and the second conductive plate 130,140 fixed contact 132,142 corresponding positions formed inside expose hole 111,112, the first conductive plates and the second conductive plate 130,140 fixed contact 132,142 by the inside of above-mentioned upper basement membrane 110 expose hole 111,112 upwards the upper surfaces of basement membrane 110 expose.Above-mentioned the first conductive plate and the second conductive plate 130,140 fixed contact 132,142 are preferably carried out embossing processing by forcing press, so that it protrudes upward.Like this, fixed contact 132,142 will be exposed hole 111 by inside, 112 upper surfaces from upper basement membrane 110 protrude slightly, thereby can be electrically connected to movable contact element 160 easily
Figure BDA0000109351830000062
Figure BDA0000109351830000063
Barrier film 150 is attached on the upper surface of above-mentioned upper basement membrane 110, and is formed with the spatial portion 151 that holds movable contact element 160.Barrier film 150 and upper basement membrane and lower basement membrane 110,120 identical are by insulating properties synthetic resin, and the thickness that consists of as polyimides is the film of 0.01-0.1mm, processes by forcing press.The face shaping of barrier film 150 and size and upper basement membrane and lower basement membrane 110,120 identical are smeared bonding agent (not diagram) on the corresponding surface of upper surface that can be by basement membrane on being attached to 110 and are pasted.
Movable contact element 160 is by elasticity and the good metal material of conductivity, process by forcing press as stainless steel materials and be arch and make, and be contained in the spatial portion 151 of above-mentioned barrier film 150, the marginal portion of above-mentioned movable contact element 160 contacts with the fixed contact 132 of the first conductive plate 130 and conducting, the apex of above-mentioned movable contact element 160 central authorities is arranged on fixed contact 142 tops of the second conductive plate 140, and with its isolation.
Above-mentioned arch movable contact element 160 can adopt various shape, and therefrom selects a kind of use, according to different movable contact elements 160 shapes, can correspondingly change the first conductive plate and the second conductive plate 130, the design of 140 shape.
For example, the movable contact element 160 that the first execution mode adopts is for spending with 90 " ten " font that the interval uniformly-spaced arranges four contact a in the marginal portion, the first conductive plate 130 just can be made the ring-type that central authorities form through hole, so that four contact a of movable contact element 160 can contact, the second 140 of conductive plates can be made tabular less than above-mentioned through hole, can be placed in the through hole of the first conductive plate 130, and be positioned at the apex below of movable contact element 160.Although diagram not, above-mentioned the first conductive plate and the second conductive plate 130,140 structure can be used for the movable contact element of the circle of the whole contact a of formation in edge equally.
In addition, above-mentioned movable contact element 160 and the first conductive plate and the second conductive plate 130,140 can be as Fig. 5 and shown in Figure 6, adopt movable contact element 360 that aftermentioned the 3rd execution mode adopts and the first conductive plate and the second conductive plate 330,340 shape.
As shown in Fig. 1 and Fig. 2 a, Fig. 2 b, diaphragm 170 is attached to the upper surface of barrier film 150, and covers the upper surface of above-mentioned movable contact element 160, comes off to prevent movable contact element 160, prevents that simultaneously foreign matter from invading inner contact part.Diaphragm 170 and upper basement membrane and lower basement membrane 110,120 identical are by insulating properties synthetic resin, and the thickness that consists of as polyimides is the film of 0.01-0.1mm, processes by forcing press.The face shaping of diaphragm 170 and size and upper basement membrane and lower basement membrane 110,120 identical can be pasted by smear bonding agent (not diagram) on the corresponding surface of the upper surface that is attached to barrier film 150.
Have in the thin button switch that the first embodiment of the invention of said structure relates to, downwards the first conductive plate of exposing of the bottom surface of basement membrane 120 and the second conductive plate 130,140 external contact 131,141 can with circuit board for example on splicing ear be electrically connected to and use.
Thereby; when pressing movable contact element 160 with finger etc. from the top; movable contact element 160 will together produce elastic deformation downwards with diaphragm 170; so that the summit of movable contact element 160 is reverse; as shown in Fig. 2 b; contact with the fixed contact 142 of the second conductive plate 140, thereby make switching circuit change "On" state into from "Off" state.Under above-mentioned "On" state, when removing the downforce of finger etc., movable contact element 160 will restore to the original state under the effect of self elastic-restoring force, so the apex of movable contact element 160 will be as shown in Fig. 2 a, separate with the fixed contact 142 of the second conductive plate 140, therefore switching circuit will change "Off" state again into, thereby realize switching function.
The thin button switch that the first embodiment of the invention of working according to the method described above relates to comprises be used to the first conductive plate of realizing switching function and the second conductive plate 130,140 and the upper basement membrane and the lower basement membrane 110,120 that support, and they are made by lamellar parts or film of synthetic resin, and adopted stepped construction, therefore thickness reduced the thickness of switch to greatest extent greatly about 0.5-1.0mm.In addition, because each building block processes by forcing press by lamellar parts and film of synthetic resin, and be fixed assembling by stickup means such as bonding agents, therefore realized the unification of manufacturing and assembling operation, improved operability and production efficiency.
[the second execution mode]
Fig. 3 and Fig. 4 are the thin button switch schematic diagrames that second embodiment of the invention relates to.The thin button switch of the second execution mode and the distinguishing characteristics of the first execution mode are, set up the gusset plate 180 that is formed with through hole 181 between upper basement membrane 110 and barrier film 150, this through hole 181 can make the fixed contact 132,142 on the first conductive plate and the second conductive plate 130,140 expose, and other structure is identical with the first execution mode.Below omit the detailed description to same section in the explanation.
The effect of above-mentioned gusset plate 180 is on structure, the thin button switch to be reinforced, and its lamellar parts that are 0.01-0.1mm by the thickness with certain structural strength process by forcing press.The face shaping of gusset plate 180 and size and above-mentioned upper basement membrane and lower basement membrane 110,120 identical, it is pasted by smear bonding agent (not diagram) on the attachment surface of upper basement membrane 110.
If gusset plate 180 is made by insulating material, need not to carry out insulation processing between gusset plate 180 and movable contact element 160.But, if gusset plate 180 by conductive metal sheet material, consists of as stainless steel materials, need to carry out insulation processing between gusset plate 180 and movable contact element 160.For this reason, set up the dielectric film 190 that is formed with through hole 191 between gusset plate 180 and barrier film 150, this through hole 191 can make the fixed contact 132,142 on the first conductive plate and the second conductive plate 130,140 expose.
Above-mentioned dielectric film 190 and upper basement membrane and lower basement membrane 110,120 identical are all by insulating properties synthetic resin, and the thickness that consists of as polyimides is the film of 0.01-0.1mm, and processes by forcing press.The face shaping of dielectric film 190 and size and above-mentioned upper basement membrane and lower basement membrane 110,120 identical, it is pasted by smear bonding agent (not diagram) on the corresponding surface of the upper surface that is attached to gusset plate 180.
Have the thin button switch that the second embodiment of the invention of said structure relates to, compare the first execution mode of front, set up gusset plate 180, therefore can further reinforce the thin button switch on structure.
[the 3rd execution mode]
Fig. 5 and Fig. 6 are the thin button switch schematic diagrames that third embodiment of the invention relates to, the thin button switch of the 3rd execution mode and the distinguishing characteristics of the first execution mode are, replace and have used difform movable contact element 360 and the first conductive plate and the second conductive plate 330,340.
In addition, distinguishing characteristics also is, do not form the outside on lower basement membrane 320 and expose the hole, and formed a plurality of external contact sheets 331,341 that the side direction between basement membrane and lower basement membrane 310,320 upwards exposes in above-mentioned the first conductive plate and the second conductive plate 330,340 edge.
In addition, distinguishing characteristics also is, the 3rd execution mode of the present invention also comprises: be arranged on the reinforcing metallic plate 380 between above-mentioned lower basement membrane 320 and the first conductive plate and the second conductive plate 330,340; Be arranged on the dielectric film 390 between above-mentioned reinforcing metallic plate 380 and the first conductive plate and the second conductive plate 330,340.Other structure is identical with aforementioned the first execution mode, below omits the detailed description to same section in the explanation.
Movable contact element 360 forms the rectangle arch, and relative edge edge, its both sides has two contact a.The first conductive plate 330 and the second conductive plate 340 be the left and right configuration take above-mentioned two contact a as benchmark, the first conductive plate 330 has extended to form fixed contact 332, fixed contact 332 extend to can with above-mentioned two positions that contact a contacts, the second conductive plate 340 has extended to form fixed contact 342, and fixed contact 342 extends to the position that can contact with the apex of movable contact element 360.
Above-mentioned movable contact element 360 can adopt the movable contact element 160 of " ten " font that aforementioned first and second execution mode adopts, and can adopt does not have illustrated circular movable contact element yet.
Reinforce metallic plate 380 and on structure, the thin button switch is reinforced, and keep firmly assembled state, it is by the metal material with certain structural strength, and the thickness of making as stainless steel is that the lamellar parts of 0.01-0.1mm process by forcing press.Reinforce the face shaping of metallic plate 380 and size and above-mentioned upper basement membrane and lower basement membrane 310,320 identical, and paste by smear bonding agent (not illustrating) on the upper surface of lower basement membrane 320.
In addition, above-mentioned reinforcing metallic plate 380 edges have formed a plurality of crooked stator 381 that (namely extending very long) extended in elongation, by the above-mentioned crooked stator 381 of bending, can cover the part upper surface of said protection film 370.
Dielectric film 390 is attached on the upper surface of reinforcing metallic plate 380, plays insulating effect between reinforcing metallic plate 380 and the first conductive plate and the second conductive plate 330,340.Dielectric film and upper basement membrane and lower basement membrane 310,320 identical are all by insulating properties synthetic resin, and the thickness that consists of as polyimides is the film of 0.01-0.1mm, and processes by forcing press.The face shaping of dielectric film 390 and size and upper basement membrane and lower basement membrane 310,320 identical, it is pasted by smear bonding agent (not diagram) on the apparent surface who is attached to the upper surface of reinforcing metallic plate 380.
In the thin button switch that the 3rd execution mode of the invention described above relates to, upwards the first conductive plate of exposing of the side direction between basement membrane and lower basement membrane 310,320 and the second conductive plate 330,340 external contact sheet 331,341 can with circuit board for example on splicing ear be electrically connected to and use.
In addition; compare aforementioned the first execution mode; reinforce metallic plate 380 by setting up; on structure, the thin button switch is reinforced; and after each building block is carried out stacked stickup, with the crooked stator 381 of reinforcing metallic plate 380 so that " [" shape is crooked, part upper surface that can covered with protective film 370; therefore, can further keep securely the stationary state of each building block.
Above the preferred embodiment for the present invention is illustrated, but claim scope of the present invention is not limited to above-mentioned execution mode, in the category that does not break away from the technology of the present invention thought and claim scope, under the present invention, the field practitioner can carry out numerous variations, distortion or displacement, and these execution modes must belong to claim scope of the present invention.

Claims (7)

1. a thin button switch, is characterized in that, this key switch comprises: upper basement membrane and lower basement membrane; A pair of the first conductive plate and the second conductive plate, should be arranged between described upper basement membrane and lower basement membrane the first conductive plate and the second conductive plate, and the apparent surface that should be attached to respectively described upper basement membrane and lower basement membrane to outer surface and the inner surface of the first conductive plate and the second conductive plate, should expose to the outside of described upper basement membrane and lower basement membrane the external contact of the first conductive plate and the second conductive plate, this exposes the fixed contact of the first conductive plate and the second conductive plate upper surface to described upper basement membrane; Arch movable contact element, the edge part of this arch movable contact element contact with the fixed contact of described the first conductive plate and conducting, and the isolation above the fixed contact of described the second conductive plate of the apex of the central authorities of this arch movable contact element arranges; Barrier film, this barrier film is attached on the upper surface of described upper basement membrane, and is formed with the spatial portion that holds described movable contact element; And diaphragm, this diaphragm is attached on the upper surface of described barrier film, and covers the upper surface of described movable contact element.
2. thin button switch according to claim 1, it is characterized in that, described upper basement membrane is formed with inside in the position corresponding with the fixed contact of described the first conductive plate and the second conductive plate and exposes the hole, and the fixed contact of described the first conductive plate and the second conductive plate can be exposed the hole by this inside and expose to the spatial portion of described barrier film.
3. thin button switch according to claim 2, is characterized in that, is provided with the gusset plate that is formed with through hole between basement membrane and barrier film on described, and this through hole can make the fixed contact of described the first conductive plate and the second conductive plate expose.
4. thin button switch according to claim 3, is characterized in that, is provided with the dielectric film that is formed with through hole between described gusset plate and described barrier film, and this through hole can make the fixed contact of described the first conductive plate and the second conductive plate expose.
5. thin button switch according to claim 1, it is characterized in that, described lower basement membrane is formed with the outside in the position corresponding with the external contact of described the first conductive plate and the second conductive plate and exposes the hole, and the external contact of described the first conductive plate and the second conductive plate can be exposed the hole by this outside and expose to the outside.
6. thin button switch according to claim 1, is characterized in that, the marginal position of described the first conductive plate and the second conductive plate extends to form a plurality of external contact sheets that the side direction between oriented described upper basement membrane and lower basement membrane exposes.
7. thin button switch according to claim 1, is characterized in that, this key switch comprises: the reinforcing metallic plate that arranges between described lower basement membrane and the first conductive plate and the second conductive plate; And the dielectric film that arranges between this reinforcing metallic plate and the first conductive plate and the second conductive plate, and be formed with at the marginal position of described reinforcing metallic plate a plurality of crooked stator that elongation is extended, thus the part upper surface of described diaphragm can be covered.
CN2011103653133A 2011-11-17 2011-11-17 Thin type key switch Pending CN103117183A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016123754A1 (en) * 2015-02-04 2016-08-11 厦门顶尖电子有限公司 Novel conducting structure and conducting method for upper sheet and lower sheet of film button circuit
CN106328411A (en) * 2015-02-04 2017-01-11 厦门顶尖电子有限公司 Method for connecting upper and lower pieces of thin film button circuit piece
CN111357072A (en) * 2017-11-20 2020-06-30 西铁城电子株式会社 Movable contact body for switch and switch

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JP2003272479A (en) * 2002-03-18 2003-09-26 Citizen Electronics Co Ltd Switch in compact electronic equipment
JP2004311126A (en) * 2003-04-03 2004-11-04 Alps Electric Co Ltd Reversal spring, its manufacturing method, and switching device using this
CN102197451A (en) * 2008-10-24 2011-09-21 日本电产三协株式会社 Sheet switch, sensing mechanism and card reader

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Publication number Priority date Publication date Assignee Title
JPH03101022A (en) * 1989-09-13 1991-04-25 Shin Etsu Polymer Co Ltd Elastic contact element
JPH05290675A (en) * 1992-04-08 1993-11-05 Matsushita Electric Ind Co Ltd Push-on switch
JPH08315674A (en) * 1995-05-15 1996-11-29 Matsushita Electric Ind Co Ltd Push switch
JP2003272479A (en) * 2002-03-18 2003-09-26 Citizen Electronics Co Ltd Switch in compact electronic equipment
JP2004311126A (en) * 2003-04-03 2004-11-04 Alps Electric Co Ltd Reversal spring, its manufacturing method, and switching device using this
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016123754A1 (en) * 2015-02-04 2016-08-11 厦门顶尖电子有限公司 Novel conducting structure and conducting method for upper sheet and lower sheet of film button circuit
CN106328411A (en) * 2015-02-04 2017-01-11 厦门顶尖电子有限公司 Method for connecting upper and lower pieces of thin film button circuit piece
CN106328411B (en) * 2015-02-04 2018-06-05 厦门顶尖电子有限公司 The conduction method of film key circuit piece fluctuating plate
CN111357072A (en) * 2017-11-20 2020-06-30 西铁城电子株式会社 Movable contact body for switch and switch
CN111357072B (en) * 2017-11-20 2022-03-01 西铁城电子株式会社 Movable contact body for switch and switch
US11270855B2 (en) 2017-11-20 2022-03-08 Citizen Electronics Co., Ltd. Movable contact body for switch, and switch

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Application publication date: 20130522