CN101206964A - Movable contact unit and switch using the same - Google Patents
Movable contact unit and switch using the same Download PDFInfo
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- CN101206964A CN101206964A CNA2007101608048A CN200710160804A CN101206964A CN 101206964 A CN101206964 A CN 101206964A CN A2007101608048 A CNA2007101608048 A CN A2007101608048A CN 200710160804 A CN200710160804 A CN 200710160804A CN 101206964 A CN101206964 A CN 101206964A
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- thin plate
- movable contact
- contact unit
- substrate thin
- push projection
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Abstract
A movable contact unit includes a base sheet made of polyurethane resin, a domed movable contact made of thin metal sheet, and a pushing protrusion. The movable contact is held on a first face side of the base sheet. The pushing protrusion is formed on a second face of the base sheet at a place corresponding to a domed top of the movable contact.
Description
Technical field
The present invention relates to the employed movable contact unit of operation of various electronic equipments and the switch that uses it.
Background technology
In recent years, in mobile terminal devices such as various electronic equipments, especially mobile phone, the operating portion that demand is easy to use and cheap.About the movable contact unit of this existing formation operating portion and the switch that uses it, describe with reference to Fig. 9, Figure 10.
Fig. 9 is the cutaway view of existing movable contact unit, and Figure 10 is to use the cutaway view of the switch of movable contact unit shown in Figure 9.Movable contact unit 30 has: substrate thin plate 31, travelling contact 33 and push projection 34.Substrate thin plate 31 is made by PETG (PET) resin film.Lower surface at substrate thin plate 31 is provided with tack coat 32.Travelling contact 33 is formed by elastic metallic thin plates such as stainless steels.Travelling contact 33 be formed lower aperture and upward the protuberance dome-shaped.A plurality of travelling contacts 33, its dome-type upper surface is by tack coat 32 bonding and be maintained at the assigned position of substrate thin plate 31.By bonding agent 35 push projection 34 is fixed on substrate thin plate 31 upper surface, with the corresponding position of dome-shaped apex of travelling contact 33 on.The major part of push projection 34 is made of the PET resin.
On the lower surface of substrate thin plate 31, be pasted with the dividing plate 36 of insulation film system, thereby can carry, take care of movable contact unit 30 by tack coat 32.
When using movable contact unit 30, peeled off the movable contact unit 30 of dividing plate 36, as shown in figure 10, the tack coat 32 of the lower surface by substrate thin plate 31 is attached on the circuit board (hereinafter being called substrate) 40.On the upper surface of substrate 40, be equipped with become by central fixed contact 41 and outside fixed contact 42 a pair of many to fixed contact.Fixed contact is located at respectively and travelling contact 33 corresponding positions.Constitute switch 50 on the substrate 40 by like this movable contact unit 30 being attached to.
In switch 50, be configured to, the dome-shaped apex of travelling contact 33 and central fixed contact 41 vacate the compartment of terrain relative to, and the periphery lower end is placed on the fixed contact 42 of the outside.Travelling contact 33 constitutes a switch with a pair of fixed contact 41,42, becomes the guidance panel switch 50 that possesses a plurality of switches as a whole.In addition, on the substrate thin plate 31 with push projection 34 above on the corresponding position, set the action button 43 of electronic equipment.
Then, the action to the switch 50 that uses the existing movable contact unit 30 that is constituted like this describes.At first, when the user carried out pressing operation with finger etc. to action button 43, action button 43 descended downwards.Then, the push projection 34 that contacts with action button 43 is applied pressing force.And then the dome-shaped apex by 31 pairs of travelling contacts 33 of substrate thin plate applies this pressing force.Then, when this power becomes pressing force greater than the bounce-back of the elasticity of travelling contact 33, be accompanied by the sense of touch that click is rattled away, the elasticity bounce-back on the direction of protuberance downwards of the dome-shaped part of travelling contact 33.Because this bounce-back, the lower surface of dome-shaped apex contacts with central fixed contact 41, by travelling contact 33, is in electric conducting state between the fixed contact 41,42.
When removing to pressing force that action button 43 is applied, the pressing force that is applied by push projection 34,31 pairs of travelling contacts 33 of substrate thin plate diminishes.When this power becomes bounce-back recuperability less than the dome-shaped part of the elasticity of travelling contact 33 bounce-back, be accompanied by the sense of touch that click is rattled away, it is original dome-shaped that travelling contact 33 recovers.Therefore, travelling contact 33 leaves central fixed contact 41, is in electric insulating state between the fixed contact 41,42.
In addition, push projection 34 is set to, even if when push the position of the misalignment of action button 43, also can always push the central portion of the dome-shaped apex of travelling contact 33.Thus, stable with the bounce-back of the travelling contact 33 in when operation, the click that recovers the to be accompanied sense of touch of rattling away, thus obtain good operation sense of touch.
As substrate thin plate 31, generally use the PET resin.The fracture strength of PET resin is 200MPa～260MPa, and elongation at break is 80%～140%.That is, the PET resin is harder material.The sense of touch of rattling away click when therefore, travelling contact 33 elasticity rebound reduces.This be because, push by 31 pairs of travelling contacts 33 of the resinous substrate thin plate of PET in when operation, just must make the cause of the power that substrate thin plate 31 is out of shape itself.Especially be formed with on the lower surface of substrate thin plate 31 under the electroluminescent cell situation of (hereinafter being called EL element), this tendency significantly.
In order to prevent that this click sense of touch of rattling away from reducing, and forms substrate thin plate 31 thinner.That is, the thickness of substrate thin plate 31 is about 25 μ m～75 μ m.If make thinlyyer, EL element is being printed when forming, have the situation of substrate thin plate 31 breakages when it being attached on the substrate 40.Therefore, the click as the pressing operation of switch 50 time rattle away sense of touch improve aspect effect limited.
Summary of the invention
The invention provides a kind of brisk click rattle away sense, the movable contact unit that can operate with good sense of touch and switch that uses it of obtaining.Movable contact unit of the present invention has: the travelling contact of the substrate thin plate of polyurethane resin system, dome-type sheet metal system and push projection.Travelling contact is maintained at first side of substrate thin plate.Push projection is formed on second of substrate thin plate, and is configured on the corresponding position of dome-shaped apex with travelling contact.By forming the substrate thin plate with polyurethane like this, thereby can prevent the rattle away reduction of sense of click.
Description of drawings
Fig. 1 is the cutaway view of the related movable contact unit of embodiments of the present invention.
Fig. 2 is the exploded perspective view of movable contact unit shown in Figure 1.
Fig. 3 is to use the cutaway view of the switch of movable contact unit shown in Figure 1.
Fig. 4 is the cutaway view of the operating state of expression switch shown in Figure 3.
Fig. 5 is the cutaway view of other related movable contact units of embodiments of the present invention.
Fig. 6 is the expansion cutaway view of movable contact unit shown in Figure 5.
Fig. 7 is to use the cutaway view of the switch of movable contact unit shown in Figure 5.
Fig. 8 is the cutaway view of the related other movable contact unit of embodiments of the present invention.
Fig. 9 is the cutaway view of existing movable contact unit.
Figure 10 is to use the cutaway view of the switch of movable contact unit shown in Figure 9.
Embodiment
Fig. 1 is the cutaway view of the related movable contact unit of embodiments of the present invention, and Fig. 2 is its exploded perspective view.Fig. 3 is to use the cutaway view of the switch of movable contact unit shown in Figure 1, and Fig. 4 is the cutaway view of its operating state of expression.Movable contact unit 20 has: substrate thin plate 1, travelling contact 3 and push projection 4.
Substrate thin plate 1 is made of the polyurethane resin film.On the upper surface of substrate thin plate 1,, the resin bed of ester system is not set with different in the past.On the whole lower surface (first face) of substrate thin plate 1, be provided with the tack coat 2 of acrylic acid, butyl rubber etc.Circular travelling contact 3 is formed by elastic metallic thin plates such as copper alloy, copper, stainless steels.Travelling contact 3 form lower aperture and upward the protuberance dome-shaped.Travelling contact 3 during the pressing force of being stipulated, can be accompanied by click sense of touch and the elasticity bounce-back of rattling away, and by removing pressing force, can be accompanied by rattle away sense of touch and elastic recovery of click is the dome-shaped of original lower aperture.
A plurality of travelling contacts 3, its dome-type upper surface is by tack coat 2 bonding and remain on the assigned position of substrate thin plate 1.With bonding agent 5 with columned push projection 4 be fixed on the upper surface of substrate thin plate 1 (second face) with corresponding position, dome-shaped top travelling contact 3.Push projection 4 carries out stamping-out to raw-material resin sheet and processes and make.The major part of push projection 4 is made of the PET resin.
Be pasted with the dividing plate 6 of the insulation film systems such as PET about thickness 50～100 μ m on the lower surface of substrate thin plate 1 by tack coat 2, thereby can carrying, take care of movable contact unit 20.Release processing has been implemented on the surface of dividing plate 6.By using dividing plate 6, protected the lower surface of travelling contact 3 and prevented the oxidation on surface, and prevented that foreign matter etc. is attached on the tack coat 2.That is to say that as shown in Figure 1, the whole lower surface of substrate thin plate 1 is covered by dividing plate 6, travelling contact 3 is sandwiched between substrate thin plate 1 and the dividing plate 6, and carries out conveyance, keeping.
When using movable contact unit 20, peeled off the movable contact unit 20 of dividing plate 6, as shown in Figure 3, the tack coat 2 of the lower surface by substrate thin plate 1 is attached on the circuit board (substrate hereinafter referred to as) 10.Substrate 10 is formed by paper phenolic aldehyde (paper phenol), the epoxy resin etc. of sneaking into glass, is formed with a plurality of wiring patterns by Copper Foil etc. on upper surface and/or lower surface.Also have,, be equipped with many becoming a pair of fixed contact 14 by the central fixed contact 11 of round shape roughly and the outside fixed contact 12 of horse-hof shape roughly at the upper surface of substrate 10.Fixed contact 14 is located at respectively and travelling contact 3 corresponding positions.That is, the travelling contact 3 that makes movable contact unit 20 and the fixed contact of substrate 10 14 relative to, the lower face side by substrate thin plate 1 is attached on the substrate 10, thereby constitutes switch 21.
In switch 21, be configured to, the dome-shaped apex of travelling contact 3 and central fixed contact 11 vacate the compartment of terrain relative to, and the periphery lower end is placed on the fixed contact 12 of the outside.Travelling contact 3 constitutes a switch with fixed contact 14, becomes the guidance panel switch 21 that possesses a plurality of switches as a whole.In addition, on the substrate thin plate 1 with push projection 4 above on the corresponding position, set the operating body 13 of insulating resin system.From the outstanding press section 13A that forms of the lower surface of operating body 13, contact with push projection 4.In this state, switch 21 is assembled in the electronic equipment (not diagram).Central authorities' fixed contact 11, outside fixed contact 12 are connected with the circuit (not diagram) of electronic equipment by wiring pattern, connector etc.
Next, utilize Fig. 4 that the action of the switch 21 of the movable contact unit 20 of the present embodiment that uses such formation is described.At first, when the user carried out pressing operation with finger etc. to operating body 13, operating body 13 descended downwards.Then, the push projection 4 that contacts with the press section 13A of operating body 13 is applied pressing force.And then the dome-shaped apex by 1 pair of travelling contact 3 of substrate thin plate applies this pressing force.Then, when this power becomes pressing force greater than the bounce-back of the elasticity of travelling contact 3, be accompanied by the sense of touch that click is rattled away, the elasticity bounce-back on the direction of protuberance downwards of the dome-shaped part of travelling contact 3.Because this bounce-back, the lower surface of dome-shaped apex contacts with central fixed contact 11, by travelling contact 3, is in electric conducting state between the fixed contact 11,12.
When removing to pressing force that operating body 13 is applied, the pressing force that is applied by push projection 4,1 pair of travelling contact 3 of substrate thin plate diminishes.When this power becomes bounce-back recuperability less than the dome-shaped part of the elasticity of travelling contact 3 bounce-back, be accompanied by the sense of touch that click is rattled away, it is original dome-shaped that travelling contact 3 recovers.Therefore, travelling contact 3 leaves central fixed contact 11, returns electric insulating state between the fixed contact 11,12.
In addition, push projection 4 is set to, even if when push the position of the misalignment of operating body 43, also can always push the central portion of the dome-shaped apex of travelling contact 3.Thus, stable with the bounce-back of the travelling contact 3 in when operation, the click that recovers the to be accompanied sense of touch of rattling away, thus obtain good operation sense of touch.
In the present embodiment, as substrate thin plate 1, use fracture strength as 2MPa～10MPa, elongation at break be 300%～1000%, compare soft with PET etc. and be ductile, flexible polyurethane resin sheeting.That is, can make 1 distortion of substrate thin plate with less power.Therefore, thereby operating body 13 is being carried out pressing operation when applying pressing force on travelling contact 3, the action of the strain of dome-shaped part is with directly travelling contact 3 to be carried out the state of pressing operation separately close.Consequently, the click sense of touch of rattling away becomes clear and melodious brisk.
As estimate the rattle away index of sense of touch of this click with variable, the click rate of rattling away is arranged.Pressing force (P2) at once that want the pressing force (P1) in elasticity when bounce-back when mensuration is pushed and at once will be when elasticity rebounds the state elastic return when removing this pressing force.Then, usefulness P1 and P2 poor (D) is divided by P1.This value represents with percentage, thereby tries to achieve the click rate of rattling away.
When using the resinous substrate thin plate of PET, compare with independent use travelling contact 3, the click rate of rattling away reduces by 3%～6%.On the other hand, under the situation of the substrate thin plate 1 that uses polyurethane resin system, the rattle away attenuating of rate of click maintains 1%～2%.
In addition and since bonding agent 5 be that substrate thin plate 1 is identical polyurethane series resin by adhering part, so the compatibility between the bonding interface is higher.Because this compatibility improves, just there is no need on the bonding plane of substrate thin plate 1, resin bed to be set, parts are that the allotment of substrate thin plate 1 is also than being easier to.In addition, the bonding agent 5 of the ultraviolet hardening that comprises urethane acrylate is solidified at short notice, therefore very suitable from the manufacturing operation aspect.
In addition, preferred, substrate thin plate 1 is formed by thermoplastic polyurethane (TPU).In addition, substrate thin plate 1 can used thickness 15 μ m～100 μ m, be more preferably the TPU about 50 μ m.
In addition, in the present embodiment, push projection 13 is formed by the PET resin of the material harder than substrate thin plate 1.Therefore, when operating body 13 is carried out pressing operation, even if between press section 13A and the travelling contact 3 more or less under the situation of off(-)center, the deflection of push projection 4 itself is less, therefore by can pushing, thereby carry out the elasticity bounce-back of travelling contact 3 reliably to the dome-type apex of travelling contact 3.In addition, can be with good sense of touch operate mobile contact 3.
In addition, be under the situation of PET resin formation at push projection 4, preferred, as mentioned above, being provided with by ester on the stationary plane of push projection 4 is the resin bed 4A that resin constitutes.Like this, can improve the adhesive strength of push projection 4.
Next, with reference to Fig. 5～Fig. 7 the movable contact unit of other structures with embodiments of the present invention is described.Fig. 5 is the cutaway view of other related movable contact units of embodiments of the present invention, and Fig. 6 is the expansion cutaway view of movable contact unit shown in Figure 5, and Fig. 7 is to use the cutaway view of the switch of movable contact unit shown in Figure 5.
The difference of movable contact unit 20A shown in Figure 5 and movable contact unit 20 shown in Figure 1 is following 2 points.At first, at the bottom of the substituting group thin plate 1 and use transmitance, have a flexible substrate thin plate 1A.In addition, on the lower surface of substrate thin plate 1A, be formed with electroluminescent cell (hereinafter being EL element) 7.And, on the lower surface of EL element 7, be formed with tack coat 2.That is, EL element 7 is arranged between substrate thin plate 1A and the movable contact unit 3.
As shown in Figure 6, EL element 7 has: light-transmissive electrode layer 71, emitter 72, dielectric layer 73 and backplate layer 74.Light-transmissive electrode layer 71, printing has disperseed electroconductive resins such as the transmittance synthetic resin of tin indium oxide etc., poly-enedioxy thiophene to form on the lower surface of substrate thin plate 1A.Emitter 72, printing has disperseed to form as the synthetic resin such as fluorubber that contains of the fluorophor such as zinc sulphide of luminous mother metal on the lower surface of light-transmissive electrode layer 71.Dielectric layer 73, printing has disperseed the synthetic resin of barium titanate etc. to form on the lower surface of emitter 72.Backplate layer 74, printing has disperseed the resin of silver, carbon etc. to form on the lower surface of dielectric layer 73.In addition, insulating barriers such as the epoxy resin that covers these layers, mylar can also be set.Light-transmissive electrode layer 71, backplate layer 74 are connected with the circuit (not diagram) of electronic equipment by wiring pattern, connector etc.
In this constitutes, the conducting/disconnect of the fixed contact that pressing operation caused 14 of respective operations body 13, and carry out the switching of each function of electronic equipment.Meanwhile, from the circuit of the electronic equipment light-transmissive electrode layer 71 and backplate layer 74 applied voltage to EL element 7, then emitter 72 is luminous.This light carries out illumination by substrate thin plate 1A from the below to operating body 13.Therefore, even if under for example darker on every side situation, the user also can easily carry out identification, the operation of electronic equipment operating portion.
In addition, as mentioned above, substrate thin plate 1A is formed by the polyurethane resin of transmitance.Therefore, even if under the situation that is being formed with the EL element 7 about thickness 50 μ m～100 μ m on the lower surface of substrate thin plate 1A, the click the during bounce-back of travelling contact 3 elasticity is rattled away sense of touch can be not impaired yet.Therefore, the user obtains the sense of rattling away of brisk click, can be with good sense of touch console switch 21A.
And then, as shown in Figure 8, can also replace the resinous push projection 4 of PET and use by the hardness push projection 4B that material constituted identical or lower with substrate thin plate 1A.Push projection 4B can be formed by kind, the TPU resin of grade, silicones identical with substrate thin plate 1A or that hardness is less.In addition, push projection 4B can form by the sheet-like material about thickness 100 μ m～250 μ m being carried out stamping-out processing.
Use push projection 4B to compare, on one side travelling contact 3 is pushed in push projection 4B self deflection on one side, so the user can obtain to have the good operation sense of touch of soft sense with the situation of using the resinous push projection 4 of PET.
In addition, under the situation that push projection 4B and substrate thin plate 1A are formed by same polyurethane resin, there is no need as the resinous push projection 4 of PET, on the lower surface that becomes the bonding plane side, to form the resin bed 4A of ester system.So, by with bonding agent 5 be that push projection 4B all is made as same polyurethane series resin by adhering part, thereby improved the compatibility between the bonding interface.Consequently, with the fixing push projection 4B of firm adhering state.
In addition, under substrate thin plate 1A and push projection 4B rubber-like situation, promptly movable contact unit 20B is installed as shown in Figure 7 and constitutes under the situation of switch, following setting can reduce rocking of operating body 13.Promptly, with respect to size from the upper surface of substrate 10 to the lower surface position of operating body 13, with movable contact unit 20B overall height dimension, just set slightly largerly slightly to the size of the upper surface of push projection 4B from tack coat 2 lower surfaces that are attached to the position on the substrate 10.And assembly operation body 13 is in the state with push projection 4B Elastic Contact.So, the difference in size that is produced during combination is absorbed by the elasticity of push projection 4B.Thus, can realize easily that operating body 13 does not have the high-quality guidance panel switch that rocks.In addition, even if between the upper surface of the lower surface of operating body 13 and push projection 4B, produce small gap, as long as push projection 4B is arranged, also can easily realize not taking place operating body 13 lower surfaces that cause by pressing operation and guidance panel switch strike note, high-quality of push projection 4B upper surface.
In addition, in Fig. 8, the movable contact unit 20B that EL element 7 is set is illustrated, but is not limited thereto, EL element 7 can also be set, and use by the hardness push projection 4B that material constituted identical or lower with substrate thin plate 1A.At this moment, if replace the substrate thin plate 1A of transmitance, and use the substrate thin plate 1A of non-transmitance, then cost is lower.
In addition, push projection 4,4B can also form by printing except that thin plate being carried out stamping-out processing.
As mentioned above, movable contact unit of the present invention and the switch that uses it can be operated with good sense of touch.This movable contact unit and the switch that uses it can be used for the operation of various electronic equipments.
Claims (13)
1. movable contact unit possesses:
Substrate thin plate with polyurethane resin system of second of first and described first opposition side;
Travelling contact that keep, dome-type sheet metal system on described first of described substrate thin plate; And
Described substrate thin plate described second, with the corresponding position of dome-shaped apex of described travelling contact on the push projection that forms.
2. movable contact unit according to claim 1, wherein,
Described substrate thin plate is by made from thermoplastic polyurethane resin.
3. movable contact unit according to claim 1, wherein,
Also have described first tack coat of going up, bond and keep described travelling contact that is located at described substrate thin plate.
4. movable contact unit according to claim 1, wherein,
Described substrate thin plate and described push projection are mutually bonding by the bonding agent of the ultraviolet hardening that is made of urethane acrylate.
5. movable contact unit according to claim 1, wherein,
Described push projection is harder than described substrate thin plate.
6. movable contact unit according to claim 5, wherein,
Described push projection is by PETG system.
7. movable contact unit according to claim 6, wherein,
Described substrate thin plate and described push projection are mutually bonding by the bonding agent of the ultraviolet hardening that is made of urethane acrylate,
It is the resin bed that resin constitutes that described push projection has by ester on by bonding face.
8. movable contact unit according to claim 1, wherein,
The hardness of described push projection is less than or equal to the hardness of described substrate thin plate.
9. movable contact unit according to claim 8, wherein,
Described push projection is by polyurethane resin system.
10. movable contact unit according to claim 8, wherein,
Described push projection is by thermoplastic polyurethane system.
11. movable contact unit according to claim 1, wherein,
Also possess the electroluminescent cell that is located between described substrate thin plate and the described movable contact unit,
Described substrate thin plate is a transmitance.
12. a switch, wherein,
Possess: movable contact unit and substrate with fixed contact,
Described movable contact unit has: the substrate thin plate with polyurethane resin system of second of first and described first opposition side;
Travelling contact that keep, dome-type sheet metal system on described first of described substrate thin plate; And
Described substrate thin plate described second, with the corresponding position of dome-shaped apex of described travelling contact on the push projection that forms,
Described movable contact unit with the described fixed contact of the described travelling contact of described movable contact unit and described substrate relative to mode, described first side by described substrate thin plate is attached on the described substrate.
13. switch according to claim 12, wherein,
Also possess the electroluminescent cell that is located between described substrate thin plate and the described movable contact unit,
Described substrate thin plate is a transmitance.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006339662A JP2008153051A (en) | 2006-12-18 | 2006-12-18 | Moving contact point |
| JP339662/2006 | 2006-12-18 | ||
| JP027511/2007 | 2007-02-07 | ||
| JP2007027511A JP2008192522A (en) | 2007-02-07 | 2007-02-07 | Movable contact unit and switch using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101206964A true CN101206964A (en) | 2008-06-25 |
| CN101206964B CN101206964B (en) | 2012-04-11 |
Family
ID=39567055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101608048A Expired - Fee Related CN101206964B (en) | 2006-12-18 | 2007-12-18 | Movable contact unit and switch using the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008153051A (en) |
| CN (1) | CN101206964B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661847A (en) * | 2008-08-27 | 2010-03-03 | 深圳富泰宏精密工业有限公司 | Electronic device |
| CN102262968A (en) * | 2010-05-27 | 2011-11-30 | 毅嘉科技股份有限公司 | Key convex body structure and manufacturing method thereof |
| CN102280284A (en) * | 2010-05-20 | 2011-12-14 | 松下电器产业株式会社 | Push switch |
| CN102789918A (en) * | 2011-05-19 | 2012-11-21 | 三美电机株式会社 | Switch |
| CN108024449A (en) * | 2017-11-16 | 2018-05-11 | 青岛海信移动通信技术股份有限公司 | FPC components and terminal device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002056737A (en) * | 2000-08-08 | 2002-02-22 | Seiko Precision Inc | Illumination-type switch |
| JP2004193047A (en) * | 2002-12-13 | 2004-07-08 | Matsushita Electric Ind Co Ltd | Moving contact with projection for pressing |
| CN2622830Y (en) * | 2003-05-14 | 2004-06-30 | 深圳市欣品实业有限公司 | Keys |
-
2006
- 2006-12-18 JP JP2006339662A patent/JP2008153051A/en active Pending
-
2007
- 2007-12-18 CN CN2007101608048A patent/CN101206964B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101661847A (en) * | 2008-08-27 | 2010-03-03 | 深圳富泰宏精密工业有限公司 | Electronic device |
| CN102280284A (en) * | 2010-05-20 | 2011-12-14 | 松下电器产业株式会社 | Push switch |
| US8552323B2 (en) | 2010-05-20 | 2013-10-08 | Panasonic Corporation | Push switch |
| CN102262968A (en) * | 2010-05-27 | 2011-11-30 | 毅嘉科技股份有限公司 | Key convex body structure and manufacturing method thereof |
| CN102789918A (en) * | 2011-05-19 | 2012-11-21 | 三美电机株式会社 | Switch |
| CN102789918B (en) * | 2011-05-19 | 2015-12-16 | 三美电机株式会社 | Switch |
| CN108024449A (en) * | 2017-11-16 | 2018-05-11 | 青岛海信移动通信技术股份有限公司 | FPC components and terminal device |
| CN108024449B (en) * | 2017-11-16 | 2020-06-09 | 青岛海信移动通信技术股份有限公司 | FPC subassembly and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101206964B (en) | 2012-04-11 |
| JP2008153051A (en) | 2008-07-03 |
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