CN101577198B - Overload protection switch - Google Patents
Overload protection switch Download PDFInfo
- Publication number
- CN101577198B CN101577198B CN 200910033950 CN200910033950A CN101577198B CN 101577198 B CN101577198 B CN 101577198B CN 200910033950 CN200910033950 CN 200910033950 CN 200910033950 A CN200910033950 A CN 200910033950A CN 101577198 B CN101577198 B CN 101577198B
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- China
- Prior art keywords
- movable contact
- button
- sides
- base
- pair
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Abstract
The invention discloses an overload protection switch, which comprises a base, cover plates on two sides of the base, a button, a button core, a pair of central terminals, a pair of fixed terminals, dynamic contact pieces arranged on the upper surfaces of the two fixed terminals, dynamic contact arranged at the end parts of the two dynamic contact pieces and static contacts corresponding to the two dynamic contacts, wherein the button and the button core are arranged at the upper opening of the base; the pair of central terminals and the pair of fixed terminals are arranged on two sides of thebottom plate of the base; two extending ends of the two dynamic contact pieces are embedded in a square hole on one end of a dynamic spring piece which is in a curved shape; the other end of the dyna mic spring piece is arranged on the bottom plate of the base by bolts; the inner sides of the two dynamic contact pieces are provided with rectangular grooves respectively; sliding blocks are arrangedbetween the two dynamic contact pieces through the matching between notches and the rectangular grooves; and a draw hook is arranged between each sliding block and the button core. The overload prote ction switch has the advantages that as the sliding blocks and the draw hooks are positioned in the center of the base, the button bears uniform force and the switch operates reliably when the switch bears overcurrent.
Description
Technical field
The present invention relates to a kind ofly be used to the switching device that is switched on or switched off circuit, relate in particular to a kind of mains switch with overload protection function.
Background technology
Traditional overcurrent protection switch comprises pedestal; be arranged on a pair of center terminal and a pair of fixed terminal of pedestal bottom plate both sides; the two fixed terminal upper surfaces that are positioned at pedestal bottom plate are respectively arranged with movable contact spring; the end of two movable contact springs is respectively arranged with moving contact; movable contact spring adopts the memory metal that can be out of shape that is heated to make usually; the two center terminal upper surfaces corresponding with two moving contacts are respectively arranged with fixed contact; the external part of movable contact spring is embedded in the small square hole of movable contact spring one end; movable contact spring is bending; the other end of movable contact spring is arranged on the pedestal bottom plate by screw; the outside of two movable contact springs is respectively arranged with drag hook; the lower end of drag hook is embedded in the rectangular channel in the movable contact spring outside; the upper end of drag hook is arranged in the aperture on the button core; button core is arranged in the button by hasp, and the pedestal both sides are respectively arranged with cover plate.When this overcurrent protection switch normally used, the moving contact of switch contacted with fixed contact, made switch be in on-state; Electric current in switch transships, at this moment, upwards buckling deformation after being heated, two movable contact springs takes place, and overcome the elastic resistance of the movable contact spring of its end, moving contact and the fixed contact of switch are separated, thereby make switch change into off-state by on-state, deformation force is delivered to button core and button by the drag hook of movable contact spring both sides simultaneously, and making the button of switch is open position by the conduction position redirect also.This overcurrent protection switch in the course of the work because the shape and size that are distributed in two drag hooks in pedestal both sides always exist error, thereby button both sides discontinuity equalization when causing switch motion unsettled phenomenon may occur during take-off.
Summary of the invention
The object of the present invention is to provide a kind of overload protection reliable in action, stressed more balanced overcurrent protection switch.
For realizing purpose of the present invention; a kind of overcurrent protection switch comprises pedestal; be arranged on two cover plates of pedestal both sides; be arranged on pedestal button suitable for reading; be arranged on button core in the button by hasp; be arranged on a pair of center terminal and a pair of fixed terminal of pedestal bottom plate both sides; the two fixed terminal upper surfaces that are positioned at pedestal bottom plate are respectively arranged with movable contact spring; the end of two movable contact springs is respectively arranged with moving contact; the two center terminal upper surfaces corresponding with two moving contacts are respectively arranged with fixed contact; the external part of two movable contact springs is embedded respectively in the small square hole of movable contact spring one end; two movable contact springs are identical bending; the other end of movable contact spring is arranged on the pedestal bottom plate both sides by screw respectively; described two movable contact spring inboards arrange rectangular channel respectively; one slide block matches with the rectangular channel of two movable contact spring sides respectively by the notch of its both sides; be arranged between two movable contact springs, the lower end of a drag hook is arranged in the aperture of slide block upside, and the upper end of drag hook then is arranged in the aperture of button core bottom.
The invention has the beneficial effects as follows: when the current overload in the switch, the movable contact spring buckling deformation of being heated drives slide block and drag hook and drives button actions, because slide block and drag hook are in the middle position of pedestal, therefore, make the button stress equalization, switch motion is more reliable.
Description of drawings
Fig. 1 is the internal structure schematic diagram of overcurrent protection switch of the present invention;
Fig. 2 is the stereochemical structure exploded perspective view of overcurrent protection switch of the present invention.
Among the figure: 1, pedestal, 2, cover plate, 3, button, 4, hasp, 5, button core, 6, center terminal, 7, fixed terminal, 8, movable contact spring, 9, moving contact, 10, fixed contact, 11, movable contact spring, 12, small square hole, 13, screw, 14, rectangular channel, 15, slide block, 16, notch, 17, drag hook, 18, aperture, 19, aperture
Embodiment
Below in conjunction with accompanying drawing, structure and the operation principle of overcurrent protection switch of the present invention is described in further detail.
As illustrated in fig. 1 and 2; a kind of overcurrent protection switch comprises pedestal 1; be arranged on two cover plates 2 of pedestal 1 both sides; be arranged on pedestal 1 button 3 suitable for reading; be arranged on button core 5 in the button 3 by hasp 4; be arranged on a pair of center terminal 6 and a pair of fixed terminal 7 of pedestal 1 base plate both sides; two fixed terminals, 7 upper surfaces that are positioned at pedestal 1 base plate are respectively arranged with movable contact spring 8; the end of two movable contact springs 8 is respectively arranged with moving contact 9; two center terminals 6 upper surfaces corresponding with two moving contacts 9 are respectively arranged with fixed contact 10; the external part of two movable contact springs 8 is embedded respectively in the small square hole 12 of movable contact spring 11 1 ends; two movable contact springs 11 are identical bending; the other end of movable contact spring 11 is arranged on pedestal 1 base plate both sides by screw 13 respectively; two movable contact springs, 8 inboards arrange rectangular channel 14 respectively; one slide block 15 matches with the rectangular channel 14 of two movable contact springs, 8 sides respectively by the notch 16 of its both sides; this slide block 15 is arranged between two movable contact springs 8; the lower end of one drag hook 17 is arranged in the aperture 18 of slide block 15 upsides, and the upper end of drag hook 17 then is arranged in the aperture 19 of button core 5 bottoms.
Operation principle of the present invention is: when switch transships, the upwards buckling deformation of being heated simultaneously of two movable contact springs 8, movable contact spring 8 overcomes the elastic resistance of movable contact spring 11 respectively, promote the slide block 15 of two movable contact springs, 8 centres simultaneously, and by the drag hook 17 that is connected with slide block 15 power of distortion is passed to button core 5, drive button 3 by button core 5 and rotate, when switch moving contact 9 and fixed contact 10 disconnected, button 3 jumped to open position by conduction position automatically; And in traditional overcurrent protection switch, play two drag hooks that are arranged on movable contact spring 8 both sides respectively of gearing, they because of knob core both sides unbalance stress, make the switch redirect not smooth through regular meeting when promoting the both sides of button core.
Claims (1)
1. an overcurrent protection switch comprises pedestal; be arranged on two cover plates of pedestal both sides; be arranged on pedestal button suitable for reading; be arranged on button core in the button by hasp; be arranged on a pair of center terminal and a pair of fixed terminal of pedestal bottom plate both sides; the two fixed terminal upper surfaces that are positioned at pedestal bottom plate are respectively arranged with movable contact spring; the end of two movable contact springs is respectively arranged with moving contact; the two center terminal upper surfaces corresponding with two moving contacts are respectively arranged with fixed contact; the external part of two movable contact springs is embedded respectively in the small square hole of movable contact spring one end; two movable contact springs are identical bending; the other end of movable contact spring is arranged on the pedestal bottom plate both sides by screw respectively; it is characterized in that: described two movable contact spring inboards arrange rectangular channel respectively; one slide block matches with the rectangular channel of two movable contact spring sides respectively by the notch of its both sides; be arranged between two movable contact springs; the lower end of one drag hook is arranged in the aperture of slide block upside, and the upper end of drag hook then is arranged in the aperture of button core bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910033950 CN101577198B (en) | 2009-06-10 | 2009-06-10 | Overload protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910033950 CN101577198B (en) | 2009-06-10 | 2009-06-10 | Overload protection switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101577198A CN101577198A (en) | 2009-11-11 |
| CN101577198B true CN101577198B (en) | 2013-08-21 |
Family
ID=41272091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910033950 Expired - Fee Related CN101577198B (en) | 2009-06-10 | 2009-06-10 | Overload protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101577198B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887088A (en) * | 2014-03-04 | 2014-06-25 | 慈溪市鸣鹤兴华电器配件厂 | Insertion type arched head structure |
| CN111969553B (en) * | 2020-08-10 | 2022-05-10 | 润世达工程有限公司 | Overcurrent protection device for electric power |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313209A (en) * | 2001-04-05 | 2002-10-25 | Sobo Yu | Press switch |
| CN1691238A (en) * | 2004-04-30 | 2005-11-02 | 游聪谋 | A circuit control protector |
| CN1877772A (en) * | 2005-06-06 | 2006-12-13 | 游聪谋 | Circuit control protector |
| CN200953333Y (en) * | 2006-09-26 | 2007-09-26 | 瑞桦工业股份有限公司 | Double-breaking safety switch |
| CN201449956U (en) * | 2009-06-10 | 2010-05-05 | 张家港华峰电接插元件有限公司 | Overloading protective switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6876290B2 (en) * | 2002-08-24 | 2005-04-05 | Tsung-Mou Yu | Switch structure with overload protection |
-
2009
- 2009-06-10 CN CN 200910033950 patent/CN101577198B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002313209A (en) * | 2001-04-05 | 2002-10-25 | Sobo Yu | Press switch |
| CN1691238A (en) * | 2004-04-30 | 2005-11-02 | 游聪谋 | A circuit control protector |
| CN1877772A (en) * | 2005-06-06 | 2006-12-13 | 游聪谋 | Circuit control protector |
| CN200953333Y (en) * | 2006-09-26 | 2007-09-26 | 瑞桦工业股份有限公司 | Double-breaking safety switch |
| CN201449956U (en) * | 2009-06-10 | 2010-05-05 | 张家港华峰电接插元件有限公司 | Overloading protective switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101577198A (en) | 2009-11-11 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20160610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |