CN101388297B - Inching switch for thin-film circuit - Google Patents
Inching switch for thin-film circuit Download PDFInfo
- Publication number
- CN101388297B CN101388297B CN2007100301723A CN200710030172A CN101388297B CN 101388297 B CN101388297 B CN 101388297B CN 2007100301723 A CN2007100301723 A CN 2007100301723A CN 200710030172 A CN200710030172 A CN 200710030172A CN 101388297 B CN101388297 B CN 101388297B
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- switch
- film circuit
- positive
- sheet
- thin
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Abstract
The invention relates to a membrane circuit micro-switch, belonging to the technical field of circuit switches, wherein a switch upper cover is provided with a positive and negative hardware plate, the upper end of the positive and negative hardware plate is connected with the membrane circuit micro-switch through a pressing way, an elastic push-button, a spring which is sleeved on the elastic push-button and a switch push-button which is arranged on the upper end of the spring are arranged on the upper end of a membrane circuit switch in turn, the upper end of the switch push-button passes through a through-hole which is arranged on the switch upper cover in a way of projecting the switch upper cover, soft press strips are respectively arranged on two sides of the inner portion of the switch upper cover, the lower ends of the soft press strips are tightly pressed on one end on which a membrane circuit switch upper plate and a lower plate are not superposed, and a silver surface on the membrane circuit switch is connected with the positive and negative hardware plate. The membrane circuit micro-switch can change the contact resistance to switch on or cut off circuits by means of utilizing the contact resistance principle of the membrane circuit switch through loosing or pressing the contact of the membrane circuit switch by the push-buttons, thereby having more excellent safety property, lower noise, and much longer service life.
Description
Technical field
The present invention relates to the contactor technical field, particularly a kind of inching switch for thin-film circuit.
Background technology
Sensitive switch because its have that volume is little, in light weight, simple operation and other advantages and being widely used in the products such as calculator, computer, but deficiency such as sensitive switch ubiquity commonly used at present complex structure, operation sound is bigger, and useful life is short.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, the security performance that provides a kind of contact resistance principle of utilizing the thin film circuit switch to make is good, and noise is low, the inching switch for thin-film circuit of long service life.
Adopt following technical scheme for achieving the above object:
A kind of inching switch for thin-film circuit, it includes switch loam cake, switch lower cover, it is characterized in that: described switch lower cover is provided with two lower ends and draws positive and negative electrode five metals sheet outside lid, the upper end of positive and negative electrode five metals sheet is connected with the thin film circuit switch to compress mode, described thin film circuit switch by scribble silver slurry surface layer and wherein an end be equipped with under the switch last slice of contact and the switch in the sheet and the switch that plays buffer action the sheet stack and form; The switch key that is disposed with flexible keypad in the upper end of stack place, is enclosed within the spring on the flexible keypad and is arranged on the spring upper end; The upper end of described switch key is passed with the form that protrudes from the switch loam cake and is arranged on a through hole that covers on the switch, both sides, inside at described switch loam cake are respectively arranged with soft press strip, an end of the non-stack of sheet under thin film circuit switch last slice and the switch is pressed in the lower end of described soft press strip, and the silver slurry face on the thin film circuit switch is connected with positive and negative electrode five metals sheet.
Cover on the described switch and offer draw-in groove, the switch lower cover is provided with trip, and switch loam cake and switch lower cover are connected by draw-in groove and trip.
Described positive and negative electrode five metals sheet and switch lower cover are shaped to one.
Beneficial effect of the present invention is: it includes switch loam cake, switch lower cover, it is characterized in that: described switch lower cover is provided with two lower ends and draws positive and negative electrode five metals sheet outside lid, the upper end of positive and negative electrode five metals sheet is connected with the thin film circuit switch to compress mode, described thin film circuit switch by scribble silver slurry surface layer and wherein an end be equipped with under the switch last slice of contact and the switch in the sheet and the switch that plays buffer action the sheet stack and form; The switch key that is disposed with flexible keypad in the upper end of stack place, is enclosed within the spring on the flexible keypad and is arranged on the spring upper end; The upper end of described switch key is passed with the form that protrudes from the switch loam cake and is arranged on a through hole that covers on the switch, both sides, inside at described switch loam cake are respectively arranged with soft press strip, an end of the non-stack of sheet under thin film circuit switch last slice and the switch is pressed in the lower end of described soft press strip, silver on thin film circuit switch slurry face with just, negative pole five metals sheet connects, so a kind of inching switch for thin-film circuit utilizes the contact resistance principle of thin film circuit switch, unclamp or push the contact of tight wiring thin film switch by button, change contact impedance and connect circuit or open circuit, make its security performance better, noise is lower, longer service life.
Description of drawings
Fig. 1 is a decomposing schematic representation of the present invention;
Fig. 2 is a front section view of the present invention;
Partial sectional view when Fig. 3 unclamps for switch key of the present invention;
Partial sectional view when Fig. 4 compresses for switch key of the present invention;
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing:
Shown in accompanying drawing 1 to 4: a kind of inching switch for thin-film circuit, it includes switch loam cake 1, switch lower cover 2, described switch lower cover 2 is provided with two lower ends and draws positive and negative electrode five metals sheet 4 outside lid, the upper end of positive and negative electrode five metals sheet 4 is connected with thin film circuit switch 5 to compress mode, described thin film circuit switch 5 by scribble silver slurry surface layer and wherein an end be equipped with under the switch last slice 7 of contact 6 and the switch in the sheet 8 and the switch that plays buffer action sheet 9 stacks and form; The switch key 12 that is disposed with flexible keypad 10 in the upper end of stack place, is enclosed within the spring 10 on the flexible keypad 10 and is arranged on spring 10 upper ends; A through hole 13 that is arranged on the switch loam cake 1 is passed in the upper end of described switch key 12 with the form that protrudes from switch loam cake 1, be respectively arranged with soft press strip 14 in the both sides, inside of described switch loam cake 1, an end of sheet 8 non-stacks under thin film circuit switch 5 switches last slice 7 and the switch is pressed in the lower end of described soft press strip 14, and the silver slurry face on the thin film circuit switch 5 is connected with positive and negative electrode five metals sheet 4.Wherein positive and negative electrode five metals sheet 4 can be an one by injection mo(u)lding with switch lower cover 2, and 2 of switch loam cake 1 and switch lower covers assemble with trip 16 by draw-in groove 15 and be connected.
The contact resistance principle of applied film contactor of the present invention is unclamped or the contact 6 of extrusion film contactor 5 by switch key 11, changes its contact impedance, thereby connects circuit or open circuit.When switch is in releasing orientation, switch key 12, spring 11, flexible keypad 10 are in nature, and the contact 6 of thin film circuit switch 5 last slice 7 and following sheet 8 is zero contact condition, and resistance is very big, and whole switching circuit is in normally off, the disconnection of positive and negative electrode circuit.When switch key 12 stressed pressing down, spring 11, flexible keypad 10 are followed stressed pressing down, the contact 6 of flexible keypad 10 extrusion film contactors 5 last slice and following sheet, make thin film circuit switch contact 6 be complete contact condition, resistance moment reduces, whole switching circuit is in connecting state, and the positive and negative electrode circuit is connected.Spring 11, flexible keypad 10 compressive deformations have rebound characteristics simultaneously.When the pressure of trip switch button 12, under the effect of the rebound characteristics of spring 11, flexible keypad 10, switch key 12 quick resiliences, whole switch is got back to releasing orientation again.
The elastic construction of this switch is had the following advantages by spring 11 and flexible keypad 10 common compositions: spring 11, flexible keypad 10 move up and down and can't produce dry sound, and thin film circuit switch 5 small variations more can not produce dry sound, so quiet effective; Whole push button longevity guarantees by spring 11, flexible keypad 10, and the useful life of spring 11 and flexible keypad 10 all more than 10,000,000 times, so the life-span of whole button also can reach more than 10,000,000 times.
The silver slurry face and positive and negative electrode five metals sheet 4 pressurizeds of thin film circuit switch 5 closely link, and form the assembly mode of pressing, and thin film circuit switch 5 is by piecing together mode with the pressure of positive and negative electrode five metals sheet 4, and transmission circuit is given outside the binding, as the binding of pcb plate.
Certainly, the embodiment of the above is a preferred embodiments of the present invention, is not to limit the scope of the present invention, so all equivalences of doing according to the described structure of the present patent application claim, feature and principle change or modify, and are included in the present patent application claim.
Claims (3)
1. inching switch for thin-film circuit, it includes switch loam cake, switch lower cover, it is characterized in that: described switch lower cover is provided with two lower ends and draws positive and negative electrode five metals sheet outside lid, the upper end of positive and negative electrode five metals sheet is connected with the thin film circuit switch to compress mode, described thin film circuit switch by scribble silver slurry surface layer and wherein an end be provided with under the switch last slice of contact and the switch in the sheet and the switch that plays buffer action the sheet stack and form; The switch key that is disposed with flexible keypad in the upper end of stack place, is enclosed within the spring on the flexible keypad and is arranged on the spring upper end; The upper end of described switch key is passed with the form that protrudes from the switch loam cake and is arranged on a through hole that covers on the switch, both sides, inside at described switch loam cake are respectively arranged with soft press strip, an end of the non-stack of sheet under thin film circuit switch last slice and the switch is pressed in the lower end of described soft press strip, and the silver slurry face on the thin film circuit switch is connected with positive and negative electrode five metals sheet.
2. a kind of inching switch for thin-film circuit according to claim 1 is characterized in that: cover on the described switch and offer draw-in groove, the switch lower cover is provided with trip, and switch loam cake and switch lower cover are connected by draw-in groove and trip.
3. a kind of inching switch for thin-film circuit according to claim 1 is characterized in that: described positive and negative electrode five metals sheet and switch lower cover are shaped to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100301723A CN101388297B (en) | 2007-09-11 | 2007-09-11 | Inching switch for thin-film circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100301723A CN101388297B (en) | 2007-09-11 | 2007-09-11 | Inching switch for thin-film circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101388297A CN101388297A (en) | 2009-03-18 |
| CN101388297B true CN101388297B (en) | 2010-09-29 |
Family
ID=40477638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100301723A Expired - Fee Related CN101388297B (en) | 2007-09-11 | 2007-09-11 | Inching switch for thin-film circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101388297B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402482A (en) * | 2015-12-17 | 2016-03-16 | 北京齐家怡居科技有限责任公司 | Air valve capable of monitoring work state |
| US10300545B2 (en) * | 2017-10-12 | 2019-05-28 | Snap Inc. | Low-profile mechanical retention |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898421A (en) * | 1972-08-18 | 1975-08-05 | Matsushita Electric Ind Co Ltd | Push button switch with elastic conductive sheet |
| US4228330A (en) * | 1978-07-10 | 1980-10-14 | Litton Systems, Inc. | Touch panel mechanism |
| CN2141120Y (en) * | 1992-11-23 | 1993-08-25 | 系统电子工业股份有限公司 | Improved microswitch |
| CN2282259Y (en) * | 1996-08-20 | 1998-05-20 | 沈华明 | Normally closed film switch |
| CN201112203Y (en) * | 2007-09-11 | 2008-09-10 | 徐孝海 | Film circuit microswitch |
-
2007
- 2007-09-11 CN CN2007100301723A patent/CN101388297B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898421A (en) * | 1972-08-18 | 1975-08-05 | Matsushita Electric Ind Co Ltd | Push button switch with elastic conductive sheet |
| US4228330A (en) * | 1978-07-10 | 1980-10-14 | Litton Systems, Inc. | Touch panel mechanism |
| CN2141120Y (en) * | 1992-11-23 | 1993-08-25 | 系统电子工业股份有限公司 | Improved microswitch |
| CN2282259Y (en) * | 1996-08-20 | 1998-05-20 | 沈华明 | Normally closed film switch |
| CN201112203Y (en) * | 2007-09-11 | 2008-09-10 | 徐孝海 | Film circuit microswitch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101388297A (en) | 2009-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20110911 |