CN216084749U - Leakage protection moulded case circuit breaker - Google Patents
Leakage protection moulded case circuit breaker Download PDFInfo
- Publication number
- CN216084749U CN216084749U CN202122446899.8U CN202122446899U CN216084749U CN 216084749 U CN216084749 U CN 216084749U CN 202122446899 U CN202122446899 U CN 202122446899U CN 216084749 U CN216084749 U CN 216084749U
- Authority
- CN
- China
- Prior art keywords
- wiring board
- zero sequence
- sequence transformer
- leakage protection
- insulating part
- 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.)
- Active
Links
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model relates to a leakage protection molded case circuit breaker, which comprises a base, an upper cover, an operating mechanism, a contact system and a leakage protection module, wherein the leakage protection module comprises a leakage protection circuit board and a zero sequence mutual inductor assembly, the zero sequence mutual inductor assembly comprises an A phase wiring board, a B phase wiring board, a C phase wiring board, a zero line wiring board, a zero sequence mutual inductor electrically connected with the leakage protection circuit board and an insulating part arranged in the zero sequence mutual inductor, the zero sequence mutual inductor is sleeved on the A phase wiring board, the B phase wiring board and the C phase wiring board, the insulation part is provided with an insulation isolation groove corresponding to the B-phase wiring board, the insulation isolation groove covers the B-phase wiring board, the zero line wiring board on be provided with the current conducting plate, the one end of current conducting plate bend to the zero sequence transformer direction and extend and alternate in the zero sequence transformer, the insulating part on be provided with the isolation groove of shroud on the current conducting plate. The utility model has the advantages of simple structure, stable and reliable performance and convenient and fast assembly.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a leakage protection molded case circuit breaker.
Background
At present, the electronic molded case circuit breaker is used for infrequent conversion and motor protection in a circuit with 50Hz alternating current, rated working voltage to 400V and rated current to 400A. The circuit breaker has the functions of overload long delay inverse time limit, short circuit short delay fixed time limit, short circuit instant and under-voltage protection, and can protect circuits and power supply equipment from being damaged. The leakage protection component of the existing leakage protection molded case circuit breaker is of a built-in structure, occupies a large space in the breaker shell, can not be integrated and modularized, and is inconvenient to assemble, so that the leakage protection molded case circuit breaker has the defects of large volume, unreliable performance and inconvenient assembly.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides the earth leakage protection molded case circuit breaker which is simple in structure, stable and reliable in performance and convenient and fast to assemble.
In order to achieve the purpose, the utility model adopts an electric leakage protection molded case circuit breaker, which comprises a base, an upper cover, an operating mechanism, a contact system and an electric leakage protection module, wherein the electric leakage protection module comprises an electric leakage protection circuit board arranged in the base and a zero sequence mutual inductor assembly arranged in the base, the zero sequence mutual inductor assembly comprises an A phase wiring board, a B phase wiring board, a C phase wiring board, a zero line wiring board, a zero sequence mutual inductor electrically connected with the electric leakage protection circuit board and an insulating part arranged in the zero sequence mutual inductor, the mutual inductor is sleeved on the A phase wiring board, the B phase wiring board and the C phase wiring board, an insulating isolation groove is arranged on the insulating part corresponding to the B phase wiring board, the insulating isolation groove covers the B phase wiring board, a conducting plate is arranged on the zero line wiring board, one end of the conducting plate is bent towards the direction of the zero sequence mutual inductor and extends and is inserted in the zero sequence mutual inductor, the insulating part is provided with an isolation groove which covers the conductive plate.
The beneficial effect of above-mentioned structure is: be provided with the insulating part in zero sequence transformer, the insulating part can be with A looks wiring board, B looks wiring board, C looks wiring board, the zero line wiring board is separated, be favorable to increasing creepage distance, insulating properties is better, the security is higher, and be provided with the current conducting plate on the zero line wiring board, the current conducting plate is bent to the zero sequence transformer direction and is extended, thereby be favorable to reducing zero sequence transformer's volume, be favorable to dwindling the volume of whole earth leakage protection module, and A looks wiring board, B looks wiring board, C looks wiring board, the zero line wiring board, the insulating part is with the integrated modularization of zero sequence transformer, adopt the modularization assembly, it is more convenient to assemble, thereby this earth leakage protection circuit breaker moulded case has simple structure, the stable performance is reliable, the convenient advantage of assembly.
Particularly, the base on correspond zero sequence transformer department and be provided with the spacing groove, zero sequence transformer block in the spacing groove, and constitute the joint cooperation of zero sequence transformer and base. The zero sequence transformer and the base are connected in a clamping fit mode, so that the base and the zero sequence transformer are convenient to assemble, and the assembly is more convenient.
Particularly, the insulating part is provided with a clamping groove, and the clamping groove is clamped on the zero sequence transformer and forms clamping fit of the zero sequence transformer and the insulating part. The insulating part and the zero sequence transformer are connected in a clamping matching mode, so that the insulating part and the zero sequence transformer are convenient to assemble, and the assembling efficiency is higher.
Drawings
Fig. 1 is an internal structural view of an embodiment of the present invention.
Fig. 2 is an exploded view of the earth leakage protection module and the base according to the embodiment of the utility model.
Fig. 3 is a perspective view of a zero sequence transformer assembly according to an embodiment of the present invention.
Fig. 4 is a perspective view of an insulator according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 4, an embodiment of the present invention is an earth leakage protection molded case circuit breaker, including a base 10, an upper cover, an operating mechanism 11, a contact system, and an earth leakage protection module 20, where the earth leakage protection module 20 includes an earth leakage protection circuit board 21 disposed in the base 10, and a zero sequence transformer assembly 30 disposed in the base 10, the zero sequence transformer assembly 30 includes an a phase wiring board 31, a B phase wiring board 32, a C phase wiring board 33, a zero line wiring board 34, a zero sequence transformer 35 electrically connected to the earth leakage protection circuit board 21, and an insulating member 36 disposed in the zero sequence transformer 35, the zero sequence transformer 35 is sleeved on the a phase wiring board 31, the B phase wiring board 32, and the C phase wiring board 33, an insulating isolation groove 361 is disposed on the insulating member 36 corresponding to the B phase wiring board 32, and the insulating isolation groove 361 covers the B phase wiring board 32, the zero line terminal board 34 is provided with a conductive plate 341, one end of the conductive plate 341 is bent towards the zero sequence transformer 35 and extends and is inserted into the zero sequence transformer 35, and the insulating member 36 is provided with an isolation groove 362 covered on the conductive plate 341.
As shown in fig. 3 and 4, a position on the base 10 corresponding to the zero sequence transformer 35 is provided with a limiting groove 101, and the zero sequence transformer 35 is clamped in the limiting groove 101 and forms a clamping fit between the zero sequence transformer 35 and the base 10. The zero sequence transformer and the base are connected in a clamping fit mode, so that the base and the zero sequence transformer are convenient to assemble, and the assembly is more convenient. The insulating part 36 is provided with a clamping groove 363, the clamping groove 363 is clamped on the zero sequence transformer 35, and the zero sequence transformer 35 is clamped and matched with the insulating part 36. The insulating part and the zero sequence transformer are connected in a clamping matching mode, so that the insulating part and the zero sequence transformer are convenient to assemble, and the assembling efficiency is higher.
Be provided with the insulating part in zero sequence transformer, the insulating part can be with A looks wiring board, B looks wiring board, C looks wiring board, the zero line wiring board is separated, be favorable to increasing creepage distance, insulating properties is better, the security is higher, and be provided with the current conducting plate on the zero line wiring board, the current conducting plate is bent to the zero sequence transformer direction and is extended, thereby be favorable to reducing zero sequence transformer's volume, be favorable to dwindling the volume of whole earth leakage protection module, and A looks wiring board, B looks wiring board, C looks wiring board, the zero line wiring board, the insulating part is with the integrated modularization of zero sequence transformer, adopt the modularization assembly, it is more convenient to assemble, thereby this earth leakage protection circuit breaker moulded case has simple structure, the stable performance is reliable, the convenient advantage of assembly.
Claims (3)
1. The utility model provides a leakage protection moulded case circuit breaker, includes base, upper cover, operating device, contact system, leakage protection module, its characterized in that: the earth leakage protection module including setting up the earth leakage protection circuit board in the base, setting zero sequence transformer subassembly in the base, the zero sequence transformer subassembly include A looks wiring board, B looks wiring board, C looks wiring board, zero line wiring board, the zero sequence transformer who is connected with earth leakage protection circuit board electricity, set up the insulating part in zero sequence transformer, zero sequence transformer suit on A looks wiring board, B looks wiring board, C looks wiring board, the insulating part on correspond B looks wiring board department and be provided with insulating isolation slot, insulating isolation slot shroud on B looks wiring board, the zero line wiring board on be provided with the current conducting plate, the one end of current conducting plate bend to the zero sequence transformer direction and extend and alternate in zero sequence transformer, the insulating part on be provided with the isolation slot of shroud on the current conducting plate.
2. A residual current protective molded case circuit breaker according to claim 1, characterized in that: the base on correspond zero sequence transformer department and be provided with the spacing groove, zero sequence transformer block in the spacing groove, and constitute the joint cooperation of zero sequence transformer and base.
3. A residual current protection molded case circuit breaker according to claim 1 or 2, characterized in that: the insulating part on be provided with the draw-in groove, the draw-in groove block on zero sequence transformer, and constitute the joint cooperation of zero sequence transformer and insulating part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122446899.8U CN216084749U (en) | 2021-10-09 | 2021-10-09 | Leakage protection moulded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122446899.8U CN216084749U (en) | 2021-10-09 | 2021-10-09 | Leakage protection moulded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216084749U true CN216084749U (en) | 2022-03-18 |
Family
ID=80638350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122446899.8U Active CN216084749U (en) | 2021-10-09 | 2021-10-09 | Leakage protection moulded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216084749U (en) |
-
2021
- 2021-10-09 CN CN202122446899.8U patent/CN216084749U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216084749U (en) | Leakage protection moulded case circuit breaker | |
| CN101710557A (en) | Plastic enclosure leakage circuit breaker with multifunctional housing | |
| CN209401577U (en) | A kind of switch transfer attachment device | |
| CN217061935U (en) | Electric leakage protection module of molded case circuit breaker | |
| CN215896276U (en) | Leakage protector | |
| CN207068768U (en) | Static contact component containing zero sequence current mutual inductor | |
| CN104332362A (en) | Multi-breakpoint built-in connection direct-current circuit breaker | |
| CN213816012U (en) | Electronic molded case circuit breaker of external leakage protection module | |
| CN113643941A (en) | Leakage protector | |
| CN219575522U (en) | Leakage protection circuit breaker | |
| CN202189668U (en) | Mutual inductor encapsulation component | |
| CN214099529U (en) | Intelligent molded case circuit breaker | |
| CN215578409U (en) | Electric leakage circuit breaker with large current-carrying capacity | |
| CN216084748U (en) | Plastic case circuit breaker of external leakage protection module | |
| CN218241750U (en) | Measuring switch | |
| CN214012723U (en) | Mould alternate insulation system of shell type electric leakage circuit breaker mutual-inductor module | |
| CN216528714U (en) | Modular automatic reclosing small residual current circuit breaker | |
| CN210628566U (en) | Lightning protection cabinet socket | |
| CN218918751U (en) | Plastic case circuit breaker easy to wire | |
| CN216959312U (en) | Overvoltage protection terminal with good arc resonance resistance | |
| CN216793582U (en) | Conductive system of circuit breaker | |
| CN214477966U (en) | Convenient secondary circuit binding post of wiring | |
| CN221329280U (en) | Direct type surge protector | |
| CN216849812U (en) | Electricity obtaining structure of circuit board of intelligent circuit breaker | |
| CN204117999U (en) | The built-in connection DC circuit breaker of a kind of multibreak |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |