CN201663126U - Thermal trip device of molded case breaker - Google Patents
Thermal trip device of molded case breaker Download PDFInfo
- Publication number
- CN201663126U CN201663126U CN2010201739889U CN201020173988U CN201663126U CN 201663126 U CN201663126 U CN 201663126U CN 2010201739889 U CN2010201739889 U CN 2010201739889U CN 201020173988 U CN201020173988 U CN 201020173988U CN 201663126 U CN201663126 U CN 201663126U
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- Prior art keywords
- golden shell
- shell fragments
- double
- metal spring
- trip device
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Abstract
The utility model relates to a thermal trip device of a molded case breaker, which mainly solves the technical problems of the conventional thermal trip device, such as high production cost and complex structure. The thermal trip device is characterized in that a mounting board vertical to a double-metal spring chip is integrally mounted at the bottom end of the double-metal spring chip; and the mounting board is fixed on a strip-shaped conductive sheet. Because the double-metal spring chip is directly connected with the conductive sheet, the conductive sheet and the double-metal spring chip can generate heat when current overload occurs, and the generated heat can lead the double-metal spring chip to deform, so as to achieve thermal tripping without a mutual inductor, thereby effectively lowering the cost, simplifying the structure and facilitating manufacture and installation.
Description
Technical field
The utility model relates to a kind of breaker of plastic casing, relates to a kind of thermal release device of breaker of plastic casing in particular, is mainly used in the breaker of plastic casing field.
Background technology
Many weeks, breaker of plastic casing has overload, short circuit and under voltage protection function, the safe operation of energy protection circuit and equipment.Existing breaker of plastic casing includes two golden shell fragments, regulates bolt, instrument transformer and draw bar, and described two golden shell fragments link to each other with a conducting strip by instrument transformer; Its operation principle is to utilize the thermal effect of transformer induced electric current to make two golden shell fragment flexural deformations, thereby directly drives the draw bar rotation and thread off; Adopt this structure, though can guarantee circuit breaker disjunction in time when the overload phenomenon takes place, but because the thermal release device of existing circuit breaker is to utilize the thermal effect of transformer induced electric current to order about two golden shell fragment bendings, so not only improved the production cost of thermal release device for plastic circuit breaker and because an instrument transformer will be installed, the structure that makes thermal release device for plastic circuit breaker is relative complex also.
Summary of the invention
The technical problem such as higher and complex structure for the production cost of the thermal release device that solves existing breaker of plastic casing; The utility model provides a kind of thermal release device of breaker of plastic casing, and this thermal release device not only can reduce production costs; Simultaneously, also can optimize its structure, the convenient installation.
For solving above technical problem, the technical scheme that the utility model is taked is a kind of thermal release device of breaker of plastic casing, it includes two golden shell fragments, regulates bolt and draw bar, and described adjusting is bolted to the top and the close draw bar of one end of two golden shell fragments; The bottom of described two golden shell fragments is provided with a mounting panel perpendicular to two golden shell fragments, and this mounting panel is structure as a whole with two golden shell fragments; The mounting panel of described two golden shell fragments is fixed on the conducting strip of a strip.
Further, described mounting panel is provided with two groups of through holes, the corresponding mounting panel that is provided with the screw that is complementary with through hole and two golden shell fragments of described conducting strip one end by screw on conducting strip.
The beneficial effects of the utility model are that two golden shell fragments are directly linked to each other with conducting strip, when current overload, conducting strip and the corresponding heating of two golden shell fragment meetings, and the heat that produces just can order about two golden shell fragment flexural deformations, can need not so just can realize the heat dropout by instrument transformer, thereby can effectively reduce corresponding cost and it is simple in structure, be convenient to processing and install.
Description of drawings
Fig. 1 is the three-dimensional structure diagram of the thermal release device of a kind of breaker of plastic casing of this real new embodiment
Fig. 2 is the three-dimensional structure diagram of the two golden shell fragments of the utility model embodiment
Embodiment
Below in conjunction with accompanying drawing the utility model execution mode is described further:
To shown in Figure 2, the utility model is a kind of thermal release device of breaker of plastic casing as Fig. 1, and it includes two golden shell fragments 1, regulates bolt 2 and draw bar 3, and described adjusting bolt 2 is fixed on the top and the close draw bar 3 of one end of two golden shell fragments 1; The technical problem such as higher and complex structure for the production cost of the thermal release device that solves existing breaker of plastic casing, the bottom of described two golden shell fragments 1 is provided with a mounting panel 11 perpendicular to two golden shell fragments 1, and this mounting panel 11 is structure as a whole with two golden shell fragments 1; The mounting panel 11 of described two golden shell fragments 1 is fixed on the conducting strip 4 of a strip; Two golden shell fragments 1 are directly linked to each other with conducting strip 4, when current overload, conducting strip 4 and the corresponding heating of two golden shell fragment 1 meetings, and the heat that produces just can order about two golden shell fragment 1 flexural deformations, can need not so just can realize the heat dropout by instrument transformer, thereby can effectively reduce corresponding cost and it is simple in structure, be convenient to processing and install.
In the present embodiment, as shown in Figure 2, installation for convenient two golden shell fragments 1, described mounting panel 11 is provided with two groups of through holes 111, be provided with the screw that is complementary with through hole 111 and the mounting panel 11 of two golden shell fragments 1 is fixed on the conducting strip 4 by screw 12 in that described conducting strip 4 one ends are corresponding, connect by screw 12, not only can guarantee the bonding strength of two golden shell fragments 1 and conducting strip 4; Simultaneously, also can conveniently install.Certainly, thereby the purpose that reaches also can be welded on two golden shell fragments 1 on the conducting strip 4, but adopts welding manner, is not easy to install, and therefore, the execution mode of present embodiment is a preferred implementation.
The foregoing description should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection range of the present utility model.
Claims (2)
1. the thermal release device of a breaker of plastic casing, it includes two golden shell fragments, regulates bolt and draw bar, and described adjusting is bolted to the top of two golden shell fragments and one end near draw bar; The bottom that it is characterized in that described two golden shell fragments is provided with a mounting panel perpendicular to two golden shell fragments, and this mounting panel is structure as a whole with two golden shell fragments; The mounting panel of described two golden shell fragments is fixed on the conducting strip of a strip.
2. the thermal release device of a kind of breaker of plastic casing according to claim 1, it is characterized in that described mounting panel is provided with two groups of through holes, the corresponding mounting panel that is provided with the screw that is complementary with through hole and two golden shell fragments of described conducting strip one end by screw on conducting strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201739889U CN201663126U (en) | 2010-04-25 | 2010-04-25 | Thermal trip device of molded case breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201739889U CN201663126U (en) | 2010-04-25 | 2010-04-25 | Thermal trip device of molded case breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201663126U true CN201663126U (en) | 2010-12-01 |
Family
ID=43233547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201739889U Expired - Lifetime CN201663126U (en) | 2010-04-25 | 2010-04-25 | Thermal trip device of molded case breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201663126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820180A (en) * | 2012-08-27 | 2012-12-12 | 德力西电气有限公司 | Heat tripping system for air breaker |
-
2010
- 2010-04-25 CN CN2010201739889U patent/CN201663126U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820180A (en) * | 2012-08-27 | 2012-12-12 | 德力西电气有限公司 | Heat tripping system for air breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JUBANG ELECTRIC GROUP CO,. LTD. Free format text: FORMER NAME: JUBANG ELECTRIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Twenty Road, Yueqing Economic Development Zone in Zhejiang province science and Technology Park 325600 Jubang Wei Wenzhou City Patentee after: JUBANG ELECTRIC CO., LTD. Address before: Twenty weft Road Economic Development Zone Jubang Yueqing Science Park, Zhejiang province 325604 Patentee before: Jubang Electric Co., Ltd. Address after: Twenty Road, Yueqing Economic Development Zone in Zhejiang province science and Technology Park 325600 Jubang Wei Wenzhou City Patentee after: JUBANG ELECTRIC CO., LTD. Address before: Twenty weft Road Economic Development Zone Jubang Yueqing Science Park, Zhejiang province 325604 Patentee before: Jubang Electric Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Twenty Road, Yueqing Economic Development Zone in Zhejiang province science and Technology Park 325600 Jubang Wei Wenzhou City Patentee after: Grand Group Co., Ltd. Address before: Twenty Road, Yueqing Economic Development Zone in Zhejiang province science and Technology Park 325600 Jubang Wei Wenzhou City Patentee before: JUBANG ELECTRIC CO., LTD. Address after: Twenty Road, Yueqing Economic Development Zone in Zhejiang province science and Technology Park 325600 Jubang Wei Wenzhou City Patentee after: Grand Group Co., Ltd. Address before: Twenty Road, Yueqing Economic Development Zone in Zhejiang province science and Technology Park 325600 Jubang Wei Wenzhou City Patentee before: JUBANG ELECTRIC CO., LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |
|
| CX01 | Expiry of patent term |