CN201584323U - Micro-switch - Google Patents
Micro-switch Download PDFInfo
- Publication number
- CN201584323U CN201584323U CN2010201027901U CN201020102790U CN201584323U CN 201584323 U CN201584323 U CN 201584323U CN 2010201027901 U CN2010201027901 U CN 2010201027901U CN 201020102790 U CN201020102790 U CN 201020102790U CN 201584323 U CN201584323 U CN 201584323U
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- China
- Prior art keywords
- pin
- base
- transfer strip
- switch
- conduction transfer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a micro-switch, comprising a shell clamped by an upper cover and a base, a conductive switching sheet and a returning spring arranged in the base and mutually connected with each other, a pressing key and a pressing rod arranged on the base, wherein the conductive switching sheet realizes the on-off switching of switch pins by linkage function of the pressing key, the pressing rod and the returning spring; the inner side wall at two ends of the base are provided with a first pin and a second pin respectively; the first pin is connected with one end of the conductive switching sheet by the returning spring; the other end of the conductive switching sheet is provided with a movable contact point; and a corresponding fixed contact point is arranged on the bent position at the upper end of the second pin and is right opposite to the lower part of the movable contact point. In the utility model, only two switch pins are adopted, the distance between the movable contact point of the conductive switching sheet and the fixed contact point of the second pin reaches 2mm or more than 2mm; creepage distance in the switch can also reach 3mm or more than 3mm; when the switch is shifted, the short circuit accident due to electric arc generated by switching is effectively prevented; and the production cost is lowered simultaneously.
Description
Technical field
The utility model relates to a kind of sensitive switch, relates in particular to the high sensitive switch of a kind of security performance.
Background technology
Sensitive switch is a kind of high-speed switch of exerting pressure and actuating, and is sensitive switch again, is widely used in the daily life, in for example handle official business electrical equipment or the household appliances.
The sensitive switch of existing application in air-conditioning, generally be assembled into by the back-moving spring on loam cake, base, conduction transfer strip, pressing key, depression bar, first pin, second pin, middle pin and the conduction transfer strip, as shown in Figure 1, the conduction transfer strip moves between the middle pin and second pin, when not pressing moulded rod, the distance of conduction transfer strip moving contact and middle pin fixed contact is about 0.7mm, and the creepage distance between conduction transfer strip and first pin and the middle pin only is about 0.75mm.This switch is applied in the air-conditioning more, and when switch switched, electric current was bigger, was easy to generate electric arc, if moving contact and fixed contact make short circuit generation security incident easily when too close.
A kind of improved structure as shown in Figure 2, it cancels second pin on the basis of above-mentioned structure shown in Figure 1, enlarged the space in the base like this.When not pressing moulded rod, the creepage distance between the distance of conduction transfer strip moving contact and middle pin fixed contact, conduction transfer strip and first pin and the middle pin reaches 1.5mm.This kind structure has strengthened the distance between switch two contacts to a certain extent, but still has potential safety hazard; Moreover middle pin and back-moving spring one end are electric conducting material, and the relative contact of the two is long-pending bigger, and when switching arc produced, danger was still bigger.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and the sensitive switch that a kind of production cost is low, coefficient of safety is high is provided.
For achieving the above object, the technical scheme that provides of the utility model is:
Design a kind of sensitive switch, comprise the housing of forming by loam cake and base clamping, be installed in the base and interconnective conduction transfer strip, back-moving spring, be arranged at pressing key and depression bar on the base, described conduction transfer strip passes through pressing key, the interlock effect of depression bar and back-moving spring realizes the break-make switching between the switch pin, along base two ends madial wall first pin and second pin are set respectively at the base two ends, first pin connects conduction transfer strip one end by back-moving spring, the conduction transfer strip other end is established moving contact, and corresponding fixed contact is arranged at second pin bending place, upper end and over against the moving contact below.
The side of corresponding loam cake is provided with installing hole on the above-mentioned base, and two installing hole peripheries are respectively equipped with the protection convex.
As the improvement to such scheme, above-mentioned first pin, second pin are
Shape, the vertical arm of two pins are attached at base two ends madial wall respectively and stretch out in the base bottom, and two pins place respectively on the protection convex at the straight arm that forms after the base inner bending.
As further improvement of these options, above-mentioned moving contact and the distance between the fixed contact are equal to or greater than 2mm, and the creepage distance between conduction transfer strip and first pin and second pin is equal to or greater than 3mm.
The utility model has following remarkable result compared to existing technology:
The utility model only adopts two switch pins, make enough spaces are arranged in the switch pedestal, and second pin is away from first pin and back-moving spring, conduction transfer strip, the relative contact that reduces second pin and back-moving spring and conduction transfer strip is long-pending, the mounting structure of this uniqueness makes on conduction transfer strip moving contact and second pin distance between the fixed contact reach 2mm or more than the 2mm, and the creepage distance in the switch also can reach 3mm or more than the 3mm, when switch switches, effectively prevent to cause short circuit accident owing to switch the electric arc that produces; Simultaneously, reduce production costs.
Description of drawings
Accompanying drawing 1 is a prior art sensitive switch internal structure schematic diagram;
Accompanying drawing 2 is another prior art sensitive switch internal structure schematic diagram;
Accompanying drawing 3 is the utility model perspective view;
Accompanying drawing 4 is the utility model decomposition texture schematic diagrames.
Embodiment
For the ease of those skilled in the art's understanding, the utility model structural principle is further described in detail below in conjunction with specific embodiment and accompanying drawing:
As accompanying drawing 1-4, a kind of sensitive switch, comprise the housing of forming by loam cake 11 and base 12 clampings 1, loam cake 11 and base 12 are insulating material, the conduction transfer strip 2 and the back-moving spring 7 that interconnect are installed in base 12,12 are provided with pressing key 3 and depression bar 4 on base, and described conduction transfer strip 2 switches by the break-make between the interlock effect realization switch pin of pressing key 3, depression bar 4 and back-moving spring 7.Wherein, first pin 5 is set and second pin, 6, two pins are at base 12 two ends respectively along base 12 two ends madial walls
Shape, the vertical arm of two pins is attached at base 12 two ends madial walls respectively and stretches out in base 12 bottoms, first pin 5 connects conduction transfer strip 2 one ends by back-moving spring 7, conduction transfer strip 2 other ends are established moving contact 21, be provided with the fixed contact 61 corresponding below the moving contact 21 with moving contact 21 in bending place, second pin, 6 upper end, distance between described moving contact 21 and the fixed contact 61 is equal to or greater than 2mm, and the creepage distance between the described conduction transfer strip 2 and first pin 5 and second pin 6 is equal to or greater than 3mm.
In addition; the side of corresponding loam cake 11 is provided with installing hole 121,122 on the above-mentioned base 12; two installing hole peripheries are respectively equipped with protection convex 123,124, the first pins 5 and second pin 6 places respectively on the protection convex 123,124 at the straight arm that forms after base 12 inner bendings.
During operation, when not pressing depression bar 4, conduction transfer strip 2 is by the active force on top on the back-moving spring 7, the conduction transfer strip moving contact 21 and the second pin fixed contact 61 disconnect, conduction transfer strip moving contact 21 tops are contacted with base 12 inwalls, at this moment, the distance between the conduction transfer strip moving contact 21 and the second pin fixed contact 61 reaches 2mm or more than the 2mm; When pressing depression bar 4, the direction of arrow as shown in Figure 3, depression bar 4 drive pressing keys 3 compacting back-moving springs 7 middle parts, and conduction transfer strip 2 is moved downward relatively, conduction transfer strip moving contact 21 contacts with the second pin fixed contact 61, thereby makes the utility model realize ON/OFF.
The utility model is not increasing housing 1 volume and is satisfying under the prerequisite of instructions for use, cancelled middle pin, not only reduced production cost, and accelerated the assembling speed of product, improved production efficiency, and second pin 6 is located at the madial wall of base 12 1 ends, make conduction transfer strip moving contact 21 and distance between the second pin fixed contact 61 reach 2mm or more than the 2mm, and conduct electricity that creepage distance between transfer strip 2 and first pin 5 and second pin 6 also reaches 3mm or more than the 3mm.When switch switches generation electric arc, enough spaces are arranged to guarantee operate as normal of the present utility model between two contacts, prevent short circuit generation security incident.
The foregoing description only is a preferred implementation of the present utility model, and in addition, the utility model can also have other implementations.That is to say that under the prerequisite that does not break away from the utility model design, any conspicuous replacement all should fall within the protection range of the present utility model.
Claims (4)
1. sensitive switch, comprise the housing of forming by loam cake (11) and base (12) clamping (1), be installed in the base and interconnective conduction transfer strip (2), back-moving spring (7), be arranged at pressing key (3) and depression bar (4) on the base, described conduction transfer strip passes through pressing key, the interlock effect of depression bar and back-moving spring realizes the break-make switching between the switch pin, it is characterized in that: along base two ends madial wall first pin (5) and second pin (6) are set respectively at the base two ends, first pin (5) connects conduction transfer strip one end by back-moving spring (7), the conduction transfer strip other end is established moving contact (21), and corresponding fixed contact (61) is arranged at that second pin (6) upper end bending (61) is located and over against the moving contact below.
2. sensitive switch according to claim 1 is characterized in that: the side of corresponding loam cake (11) is provided with installing hole (121,122) on the described base, and two installing hole peripheries are respectively equipped with protection convex (123,124).
3. sensitive switch according to claim 2 is characterized in that: described first pin (5), second pin (6) are
Shape, the vertical arm of two pins are attached at base two ends madial wall respectively and stretch out in the base bottom, and two pins place respectively on the protection convex (123,124) at the straight arm that forms after the base inner bending.
4. sensitive switch according to claim 1 is characterized in that: the distance between described moving contact and the fixed contact is equal to or greater than 2mm, and the creepage distance between conduction transfer strip and first pin and second pin is equal to or greater than 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201027901U CN201584323U (en) | 2010-01-26 | 2010-01-26 | Micro-switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201027901U CN201584323U (en) | 2010-01-26 | 2010-01-26 | Micro-switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584323U true CN201584323U (en) | 2010-09-15 |
Family
ID=42726334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201027901U Expired - Lifetime CN201584323U (en) | 2010-01-26 | 2010-01-26 | Micro-switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584323U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347281A (en) * | 2013-07-26 | 2015-02-11 | 海尔集团公司 | Washing machine micro switch, manufacturing method of micro switch and washing machine |
| CN107170593A (en) * | 2017-06-14 | 2017-09-15 | 青岛海尔洗衣机有限公司 | A kind of microswitch and washing machine |
| CN118016459A (en) * | 2024-04-09 | 2024-05-10 | 浙江昇拓电子有限公司 | Micro-gap switch convenient to change |
-
2010
- 2010-01-26 CN CN2010201027901U patent/CN201584323U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104347281A (en) * | 2013-07-26 | 2015-02-11 | 海尔集团公司 | Washing machine micro switch, manufacturing method of micro switch and washing machine |
| CN104347281B (en) * | 2013-07-26 | 2018-10-12 | 海尔集团公司 | The manufacturing method and washing machine of a kind of washing machine microswitch, microswitch |
| CN107170593A (en) * | 2017-06-14 | 2017-09-15 | 青岛海尔洗衣机有限公司 | A kind of microswitch and washing machine |
| CN118016459A (en) * | 2024-04-09 | 2024-05-10 | 浙江昇拓电子有限公司 | Micro-gap switch convenient to change |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |