CN204516709U - Breaker of plastic casing - Google Patents
Breaker of plastic casing Download PDFInfo
- Publication number
- CN204516709U CN204516709U CN201520255427.6U CN201520255427U CN204516709U CN 204516709 U CN204516709 U CN 204516709U CN 201520255427 U CN201520255427 U CN 201520255427U CN 204516709 U CN204516709 U CN 204516709U
- Authority
- CN
- China
- Prior art keywords
- thermal element
- flexible coupling
- moving contact
- connecting portion
- 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
The utility model relates to a kind of breaker of plastic casing, comprise base, upper cover, operating mechanism, arc quenching system, contact system, conducting system, hot tripping system, described contact system comprises moving contact, fixed contact, described conducting system comprises the thermal element be fixed on pedestal, bimetal leaf, iron core, described thermal element comprises connecting portion, heating part, be connected to the power part on binding post, described bimetal leaf and iron core are riveted on the heating part of thermal element respectively, the connecting portion of described thermal element is flexible coupling by first and second is flexible coupling and is connected on the afterbody of moving contact, these first two ends be flexible coupling respectively spot welding be connected to the connecting portion of thermal element upper surface on and moving contact afterbody upper surface on, and the second two ends be flexible coupling respectively spot welding be connected to the connecting portion of thermal element lower surface on and moving contact afterbody lower surface on.The utility model has that structure is simple, stable performance, long service life advantage.
Description
Technical field
The utility model is specifically related to a kind of breaker of plastic casing.
Background technology
Breaker of plastic casing is protective device important in low-voltage distribution system, and in low-voltage distribution system, it plays connection, disjunction running current, has simultaneously and provides short-circuit protection, overload protection, under voltage protection etc. to AC network circuit and power consumption equipment.The conducting system structural design of existing breaker of plastic casing is reasonable not, cause this breaker of plastic casing to exist temperature rise is wayward, power consumption is large defect, thus makes this breaker of plastic casing there is the defect that performance is stable not, useful life is short.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provide that a kind of structure is simple, stable performance, long service life breaker of plastic casing.
For achieving the above object, the utility model adopts a kind of breaker of plastic casing, comprise base, upper cover, operating mechanism, arc quenching system, contact system, conducting system, hot tripping system, described contact system comprises the moving contact arranged that to link with operating mechanism, corresponding moving contact place is arranged on the fixed contact on pedestal, described conducting system comprises the thermal element be fixed on pedestal, bimetal leaf, iron core, described thermal element comprises connecting portion, heating part, be connected to the power part on binding post, described bimetal leaf and iron core are riveted on the heating part of thermal element respectively, the connecting portion of described thermal element is flexible coupling by first and second is flexible coupling and is connected on the afterbody of moving contact, these first two ends be flexible coupling respectively spot welding be connected to the connecting portion of thermal element upper surface on and moving contact afterbody upper surface on, and the second two ends be flexible coupling respectively spot welding be connected to the connecting portion of thermal element lower surface on and moving contact afterbody lower surface on.
The beneficial effects of the utility model are: this breaker of plastic casing first to be flexible coupling by being provided with between moving contact and thermal element, second be flexible coupling, and first to be flexible coupling, second to be flexible coupling and to utilize shunting principle spot welding to connect as one formula structure moving contact and thermal element, thus electric current flows to thermal element along separate routes from moving contact, the temperature rise of this breaker of plastic casing is so not only made easily to control but also reduce power consumption and temperature rise, thus improve the performance of this breaker of plastic casing, also extend the useful life of this breaker of plastic casing.
Accompanying drawing explanation
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the structural representation of the utility model conducting system.
Embodiment
As Fig. 1, shown in 2, the utility model embodiment is a kind of breaker of plastic casing, comprises base 10, upper cover 11, operating mechanism 12, arc quenching system 13, contact system, conducting system 20, hot tripping system, described contact system comprises the moving contact 14 arranged that to link with operating mechanism 12, corresponding moving contact 14 place is arranged on the fixed contact 15 on pedestal 10, and described conducting system 20 comprises the thermal element 21 be fixed on pedestal 10, bimetal leaf 22, iron core 23, described thermal element 21 comprises connecting portion 211, heating part 212, be connected to the power part 213 on binding post 16, described bimetal leaf 22 and iron core 23 are riveted on the heating part 212 of thermal element 21 respectively, the connecting portion 211 of described thermal element 21 is flexible coupling by first and 24 and second is flexible coupling and 25 is connected on the afterbody of moving contact 14, this first be flexible coupling 24 two ends respectively spot welding be connected to the connecting portion 211 of thermal element 21 upper surface on and moving contact 14 afterbody upper surface on, and second be flexible coupling 25 two ends respectively spot welding be connected to the connecting portion 211 of thermal element 21 lower surface on and moving contact 14 afterbody lower surface on.This breaker of plastic casing first to be flexible coupling by being provided with between moving contact and thermal element, second be flexible coupling, and first to be flexible coupling, second to be flexible coupling and to utilize shunting principle spot welding to connect as one formula structure moving contact and thermal element, thus electric current flows to thermal element along separate routes from moving contact, the temperature rise of this breaker of plastic casing is so not only made easily to control but also reduce power consumption and temperature rise, thus improve the performance of this breaker of plastic casing, also extend the useful life of this breaker of plastic casing.
Claims (1)
1. a breaker of plastic casing, comprise base, upper cover, operating mechanism, arc quenching system, contact system, conducting system, hot tripping system, described contact system comprises the moving contact arranged that to link with operating mechanism, corresponding moving contact place is arranged on the fixed contact on pedestal, it is characterized in that: described conducting system comprises the thermal element be fixed on pedestal, bimetal leaf, iron core, described thermal element comprises connecting portion, heating part, be connected to the power part on binding post, described bimetal leaf and iron core are riveted on the heating part of thermal element respectively, the connecting portion of described thermal element is flexible coupling by first and second is flexible coupling and is connected on the afterbody of moving contact, these first two ends be flexible coupling respectively spot welding be connected to the connecting portion of thermal element upper surface on and moving contact afterbody upper surface on, and the second two ends be flexible coupling respectively spot welding be connected to the connecting portion of thermal element lower surface on and moving contact afterbody lower surface on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255427.6U CN204516709U (en) | 2015-04-21 | 2015-04-21 | Breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255427.6U CN204516709U (en) | 2015-04-21 | 2015-04-21 | Breaker of plastic casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204516709U true CN204516709U (en) | 2015-07-29 |
Family
ID=53714656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520255427.6U Expired - Fee Related CN204516709U (en) | 2015-04-21 | 2015-04-21 | Breaker of plastic casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204516709U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244241A (en) * | 2015-10-28 | 2016-01-13 | 浙江爱德利电器股份有限公司 | Moulded-case circuit breaker |
| CN107424883A (en) * | 2017-06-16 | 2017-12-01 | 罗格朗低压电器（无锡）有限公司 | A kind of Thermomagnetic type current protection system for breaker of plastic casing |
| CN115346842A (en) * | 2021-05-13 | 2022-11-15 | 上海良信电器股份有限公司 | Circuit breaker structure for reducing temperature rise |
-
2015
- 2015-04-21 CN CN201520255427.6U patent/CN204516709U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244241A (en) * | 2015-10-28 | 2016-01-13 | 浙江爱德利电器股份有限公司 | Moulded-case circuit breaker |
| CN107424883A (en) * | 2017-06-16 | 2017-12-01 | 罗格朗低压电器（无锡）有限公司 | A kind of Thermomagnetic type current protection system for breaker of plastic casing |
| CN115346842A (en) * | 2021-05-13 | 2022-11-15 | 上海良信电器股份有限公司 | Circuit breaker structure for reducing temperature rise |
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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: 20150729 Termination date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |