CN202796814U - Fusing type dry-burning protector - Google Patents
Fusing type dry-burning protector Download PDFInfo
- Publication number
- CN202796814U CN202796814U CN2012204336342U CN201220433634U CN202796814U CN 202796814 U CN202796814 U CN 202796814U CN 2012204336342 U CN2012204336342 U CN 2012204336342U CN 201220433634 U CN201220433634 U CN 201220433634U CN 202796814 U CN202796814 U CN 202796814U
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- CN
- China
- Prior art keywords
- movable contact
- contact piece
- thimble
- hot melt
- contact
- 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 - Fee Related
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Abstract
A fusing type dry-burning protector consists of a ceramic casing, a static contact piece, a movable contact piece, connecting pieces, rivets, a ceramic cover, a hot melting ejector pin, a cover and other parts. The static contact piece, the movable contact piece and the two connecting pieces are fixed on the ceramic casing, the static contact piece and the movable contact piece are located inside the ceramic casing, the connecting pieces are located outside, the static contact piece, the rivets and one connecting piece form electrical connection, and the movable contact piece, the rivets and the other connecting piece form electrical connection. An enough gap is formed between two types of electrical connection, a contact point on the static contact piece corresponds to t a contact point on the movable contact, and a spacing distance of 1-5mm is formed between the two contact points. The thick end of the hot melting ejector pin is plugged into a corresponding hole on the movable contact piece and positioned through the ceramic cover, the ceramic cover is right installed at the ceramic cover port, the cover is fixed on the ceramic cover, the other end of the hot melting ejector pin extends out of the cover, the movable contact piece is manufactured to be U-shaped and is made from a flexible metal piece, and the hot melting ejector pin is made of a low-melting-point plastic. The shortcoming that an original dry-burning protector is low in reaction sensitivity is overcome.
Description
Affiliated technical field
The utility model relates to a kind of protector that shields during for household electrical appliance generation dry combustion method; its operation principle is that when electrical equipment generation dry combustion method or overtemperature, a fusible part of protector is sensed high temperature and melted; thereby the cut-out circuit is protected electrical equipment.
Background technology
According to the household electrical appliance standard-required; in order to prevent that the reasons such as dry combustion method from causing the security incident of overtemperature initiation fire; household electrical appliance all will dispose protector; the protector that adopts at present is divided into and automatically resets; hand-reset and Fuse Type three types; its operation principle all is the heating part of electrical equipment imports heat into protector inside by the protector shell senser; senser is pressed the design temperature action; cut off current channel; thereby play the effect of protection electrical equipment; the shell of protector requires insulation; and insulating material all is the non-conductor of heat; so temperature rise speed is very fast when occuring for overtemperatures such as dry combustion methods; the unrestricted electrical equipment that rises of temperature, above-mentioned protector just can not in time move, such as the powerful electrothermal tube of heating up water; in case lack of water generation dry combustion method; its temperature just can rise to several Baidu within the several seconds, and protector wanted response was just arranged in tens of seconds, and electrical equipment burns already when the time comes.
Summary of the invention
The utility model has proposed a kind of a kind of Fuse Type protector that sensing element is directly fitted in the heating part for the insensitive deficiency of reaction that above-mentioned traditional protector exists.
The technical scheme that its technical problem that solves the utility model adopts is: the Fuse Type protector is by porcelain shell 1; static contact 2; movable contact spring 3; lug plate 4; rivet 5; porcelain lid 6; the parts such as hot melt thimble 7 and cover cap 8 form; with static contact 2; movable contact spring 3 and two lug plate 4 usefulness rivets 5 are fixed in porcelain shell 1; static contact 2 and movable contact spring 3 are in the inside of porcelain shell; lug plate 4 externally; static contact 2; rivet 5 and a lug plate 4 form and electrically connect; movable contact spring 3; rivet 5 and another lug plate 4 form and electrically connect; two groups form enough gaps between electrically connecting; contact 10 on the static contact 2 and the contact 10 on the movable contact spring 3 are in correspondence with each other; and the spacing of formation 1-5mm; one that hot melt thimble 7 is thicker is inserted in the through hole 11 corresponding on the movable contact spring 3; and with porcelain lid 6 location; porcelain lid 6 is contained in porcelain shell 1 port; and be fixed on the porcelain shell 1 with cover cap 8, cover cap 8 is stretched out in the other end of hot melt thimble 7.
Described Fuse Type protector is characterized in that, movable contact spring 3 usefulness elastic sheet metals are made into " U " shape, on one side it is fixed in the porcelain shell 1, another side can promote to make the contact 10 above it to contact with contact 10 on the static contact 2 by hot melt thimble 7.
Described Fuse Type protector is characterized in that hot melt thimble 7 is made by low melting point plastic.
Described Fuse Type protector is characterized in that, the another kind of structure of hot melt thimble 7 is that its overhanging head is inlayed low-melting-point metal silk 13.
The beneficial effects of the utility model are to have solved the low shortcoming of original protector reaction sensitivity, make the electrical equipment of heating up water fast that suitable protector arranged.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is structure chart of the present utility model.
Fig. 2 is the structure chart of movable contact spring.
Fig. 3 is the hot melt thimble that head is inlayed the low-melting-point metal silk.
Embodiment
Below in conjunction with accompanying drawing the utility model feature and correlated characteristic are described further, so that technical staff of the same trade is more readily understood:
Such as accompanying drawing 1-3 signal, label wherein represents respectively: 1-porcelain shell, 2-static contact, 3-movable contact spring, 4-lug plate, 5-rivet, 6-porcelain lid, 7-hot melt thimble, 8-cover cap, 10-contact, 11-through hole, 12-rivet hole, 13-low-melting-point metal silk
Embodiment:
The Fuse Type protector is by the porcelain shell; static contact; movable contact spring; lug plate; rivet; the porcelain lid; the parts such as hot melt thimble and cover cap form; its package assembly such as Fig. 1; with static contact; movable contact spring and two lug plates are fixed in the porcelain shell with rivet; static contact and movable contact spring are in the inside of porcelain shell; lug plate externally; static contact; rivet and a lug plate form and electrically connect; movable contact spring; rivet and another lug plate form and electrically connect; two groups form enough gaps between electrically connecting; contact on the static contact and the contact on the movable contact spring are in correspondence with each other; and the spacing of formation 1-5mm; one that the hot melt thimble is thicker is inserted in the hole corresponding on the movable contact spring; and with porcelain lid location; porcelain mounts cover at porcelain shell port; and be fixed on the porcelain shell with cover cap; cover cap is stretched out in the other end of hot melt thimble; contact on its height value and the static contact is suitable with the spacing between the contact on the movable contact spring; when protector uses; the hot melt thimble is pushed into; thereby promote movable contact spring the contact on it is contacted with the contact of static contact, make conducting between two lug plates of protector.
Movable contact spring is made into " U " shape with elastic sheet metal, it is fixed in the porcelain shell on one side, another side can promote to make the contact above it to contact with contact on the static contact by the hot melt thimble, can return to original position again after losing the promotion of hot melt thimble, and the shape of movable contact spring as shown in Figure 2.
The hot melt thimble is made by low melting point plastic, and the hot melt thimble withstands on heating surface during use, when the temperature of heating surface surpasses the plastics fusing point, the fusing of hot melt thimble head, movable contact spring utilizes its elasticity to recover shape, thereby the contact between the break contact can be cut off the electricity supply thus.
The another kind of structure of hot melt thimble is that its overhanging head is inlayed the low-melting-point metal silk, and such as Fig. 3, low-melting-point metal is temperature sensor more accurately.
Although below with reference to accompanying drawing design and example according to the utility model purpose have been done to elaborate; but those of ordinary skills can recognize; under the precondition that does not break away from the claim limited range; still can make various improvement and conversion to the utility model, and this improvement and conversion still should belong to protection range of the present utility model.
Claims (4)
1. Fuse Type protector; it is characterized in that: the Fuse Type protector is by porcelain shell (1); static contact (2); movable contact spring (3); lug plate (4); rivet (5); porcelain lid (6); the parts such as hot melt thimble (7) and cover cap (8) form; static contact (2); movable contact spring (3) and two lug plates (4) are fixed in porcelain shell (1) with rivet (5); static contact (2) and movable contact spring (3) are in the inside of porcelain shell (1); lug plate (4) externally; static contact (2); rivet (5) and a lug plate (4) form and electrically connect; movable contact spring (3); rivet (5) and another lug plate (4) form and electrically connect; contact (10) on the static contact (2) and the contact (10) on the movable contact spring (3) are in correspondence with each other; and the spacing of formation 1-5mm; one that hot melt thimble (7) is thicker is inserted in the upper corresponding through hole (11) of movable contact spring (3); and with porcelain lid (6) location; porcelain lid (6) is contained in porcelain shell (1) port; and be fixed on the porcelain shell (1) with cover cap (8), cover cap (8) is stretched out in the other end of hot melt thimble (7).
2. Fuse Type protector according to claim 1; it is characterized in that: movable contact spring (3) is made into " U " shape with elastic sheet metal; it is fixed in the porcelain shell (1) on one side, and another side can promote to make the contact (10) above it to contact with contact (10) on the static contact (2) by hot melt thimble (7).
3. Fuse Type protector according to claim 1, it is characterized in that: hot melt thimble (7) is made by low melting point plastic.
4. Fuse Type protector according to claim 1, it is characterized in that: the another kind of structure of hot melt thimble (7) is that its overhanging head is inlayed low-melting-point metal silk (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204336342U CN202796814U (en) | 2012-08-29 | 2012-08-29 | Fusing type dry-burning protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204336342U CN202796814U (en) | 2012-08-29 | 2012-08-29 | Fusing type dry-burning protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796814U true CN202796814U (en) | 2013-03-13 |
Family
ID=47824018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204336342U Expired - Fee Related CN202796814U (en) | 2012-08-29 | 2012-08-29 | Fusing type dry-burning protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796814U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632901A (en) * | 2012-08-28 | 2014-03-12 | 宁波家尚电器有限公司 | Fuse type dry heating protector |
-
2012
- 2012-08-29 CN CN2012204336342U patent/CN202796814U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632901A (en) * | 2012-08-28 | 2014-03-12 | 宁波家尚电器有限公司 | Fuse type dry heating protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130313 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |