CN219457490U - Plastic case circuit breaker - Google Patents
Plastic case circuit breaker Download PDFInfo
- Publication number
- CN219457490U CN219457490U CN202320365953.2U CN202320365953U CN219457490U CN 219457490 U CN219457490 U CN 219457490U CN 202320365953 U CN202320365953 U CN 202320365953U CN 219457490 U CN219457490 U CN 219457490U
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- circuit board
- base
- main circuit
- circuit breaker
- measurement
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Abstract
The utility model relates to a molded case circuit breaker, which comprises a base, an upper cover, a bottom plate, an operating mechanism, a moving contact and a fixed contact, wherein a measuring module is arranged on the base, the measuring module comprises a main circuit board arranged in the base, a measuring circuit board assembly arranged on one side of the base and spliced with the main circuit board, three measuring transformers respectively arranged on the main circuit board, and a micro switch arranged on the main circuit board and matched with a rotating shaft of the operating mechanism, the rotating shaft can trigger the micro switch to realize the connection or disconnection of the micro switch, the measuring circuit board assembly comprises a shell arranged in a slot on one side of the base and a measuring circuit board arranged in the shell, and a splicing terminal spliced with the main circuit board is arranged on the measuring circuit board. The utility model has the advantages of simple structure, stable and reliable performance and convenient assembly.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to a molded case circuit breaker.
Background
At present, a molded case circuit breaker is a common protection electrical appliance, has the functions of switching on and off load current and overload and short-circuit protection on the load current, and is widely applied to overload and short-circuit protection of various power distribution systems and motors. Along with the development of the smart power grid, from a power station to a terminal, the intellectualization is a development flow which can not fall off in each link. As an intelligent circuit breaker for controlling and protecting a low-voltage distribution network, the intelligent circuit breaker integrates functions of metering, control, communication and the like. The metering function of the existing intelligent circuit breaker cannot be integrated and modularized, modularized assembly cannot be realized, assembly is complex, and time and labor are wasted.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a molded case circuit breaker which is simple in structure, stable and reliable in performance and convenient to assemble.
In order to achieve the above purpose, the utility model adopts a molded case circuit breaker, which comprises a base, an upper cover, a bottom plate, an operating mechanism, a moving contact and a fixed contact, wherein the base is provided with a measuring module, the measuring module comprises a main circuit board arranged in the base, a measuring circuit board assembly arranged on one side of the base and spliced with the main circuit board, three measuring transformers respectively arranged on the main circuit board, and a micro switch arranged on the main circuit board and matched with a rotating shaft of the operating mechanism, the rotating shaft can trigger the micro switch to realize the connection or disconnection of the micro switch, the measuring circuit board assembly comprises a shell arranged in a slot on one side of the base and a measuring circuit board arranged in the shell, and a splicing terminal spliced with the main circuit board is arranged on the measuring circuit board.
The beneficial effects of the structure are as follows: the measuring circuit board assembly and the main circuit board are integrated and modularized, so that the modularized assembly of the measuring module and the base can be realized, and the assembly is more convenient. The measuring circuit board assembly and the main circuit board are connected in a plug-in connection mode, assembly is more convenient, the micro switch can monitor the working position of the rotating shaft, and the micro switch can send the measured circuit board to the background, so that the remote monitoring function of the molded case circuit breaker is realized. Therefore, the plastic shell circuit breaker has the advantages of simple structure, stable and reliable performance and convenience in assembly.
Particularly, get the electric subassembly is provided with between main circuit board and the stationary contact, get electric subassembly including setting up get electric screw, get electric piece on the base, get electric screw pass the base and connect on the stationary contact, get electric piece one end and connect on getting electric screw, get electric piece other end peg graft on main circuit board. The electricity taking piece of the electricity taking component is inserted on the main circuit board, so that the electricity taking component and the main circuit board are convenient to assemble, and the assembly is more convenient.
In particular, the base is provided with an insulating cover which is separated between the electricity taking screw and the main circuit board. The insulating cover covers the power taking screw, so that the power taking screw can be prevented from being exposed, and the safety performance of the molded case circuit breaker is improved.
Particularly, the three metering transformers are respectively provided with a pin header, and the pins of the three metering transformers are respectively inserted into the main circuit board. The three measurement transformers are inserted on the main circuit board through the pin header, so that the three measurement transformers and the main circuit board are convenient to assemble, and the assembly is more convenient.
Particularly, the bottom plate is arranged on the base, a containing cavity is formed between the bottom plate and the base, the main circuit board is arranged in the containing cavity, and the bottom plate is provided with a screw connected to the base. The main circuit board is arranged in the accommodating cavity, so that the main circuit board and the base are convenient to assemble, and the assembly is more convenient.
Drawings
Fig. 1 is a perspective view of an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of an embodiment of the present utility model.
Fig. 3 is a first perspective exploded view of an embodiment of the present utility model.
Fig. 4 is an exploded view of a second view of an embodiment of the present utility model.
Fig. 5 is an assembly diagram of a main circuit board and a measuring transformer according to an embodiment of the present utility model.
Detailed Description
As shown in fig. 1 to 5, an embodiment of the present utility model is a molded case circuit breaker, including a base 10, an upper cover 11, a bottom plate 12, an operating mechanism 13, a moving contact 14, and a fixed contact 15, wherein the base 10 is provided with a measurement module 20, the measurement module 20 includes a main circuit board 21 disposed in the base 10, a measurement circuit board assembly 22 disposed on one side of the base 10 and plugged into the main circuit board 21, three measurement transformers 23 disposed on the main circuit board 21 respectively, and a micro switch 24 disposed on the main circuit board 21 and matched with a rotating shaft 131 of the operating mechanism 13, the rotating shaft 131 can trigger the micro switch 24 to switch on or off the micro switch 24, the measurement circuit board assembly 22 includes a housing 221 disposed in a slot 101 on one side of the base 10, and a measurement circuit board disposed in the housing 221, and plug terminals 222 plugged into the main circuit board 21 are disposed on the measurement circuit board 221.
As shown in fig. 3 to 5, an electricity taking assembly 30 is disposed between the main circuit board 21 and the fixed contact 15, the electricity taking assembly 30 includes an electricity taking screw 31 and an electricity taking piece 32 disposed on the base 10, the electricity taking screw 31 penetrates through the base 10 and is connected to the fixed contact 15, one end of the electricity taking piece 32 is connected to the electricity taking screw 31, and the other end of the electricity taking piece 32 is inserted into the main circuit board 21. The electricity taking piece of the electricity taking component is inserted on the main circuit board, so that the electricity taking component and the main circuit board are convenient to assemble, and the assembly is more convenient. The base 10 is provided with an insulating cover 33 which is separated between the power taking screw 21 and the main circuit board 21. The insulating cover covers the power taking screw, so that the power taking screw can be prevented from being exposed, and the safety performance of the molded case circuit breaker is improved. The three measuring transformers 23 are respectively provided with a pin 231, and the pins 231 of the three measuring transformers 23 are respectively inserted into the main circuit board 21. The three measurement transformers are inserted on the main circuit board through the pin header, so that the three measurement transformers and the main circuit board are convenient to assemble, and the assembly is more convenient. The base plate 12 is arranged on the base 10, a containing cavity 100 is formed between the base plate 12 and the base 10, the main circuit board 21 is arranged in the containing cavity 100, and the base plate 12 is provided with screws 121 connected to the base 10. The main circuit board is arranged in the accommodating cavity, so that the main circuit board and the base are convenient to assemble, and the assembly is more convenient.
The measuring circuit board assembly and the main circuit board are integrated and modularized, so that the modularized assembly of the measuring module and the base can be realized, and the assembly is more convenient. The measuring circuit board assembly and the main circuit board are connected in a plug-in connection mode, assembly is more convenient, the micro switch can monitor the working position of the rotating shaft, and the micro switch can send the measured circuit board to the background, so that the remote monitoring function of the molded case circuit breaker is realized. Therefore, the plastic shell circuit breaker has the advantages of simple structure, stable and reliable performance and convenience in assembly.
Claims (5)
1. The utility model provides a moulded case circuit breaker, includes base, upper cover, bottom plate, operating device, moving contact, stationary contact, its characterized in that: the base on be provided with the measurement module, the measurement module including set up main circuit board in the base, set up on base one side and with main circuit board looks grafting measurement circuit board subassembly, set up respectively on main circuit board three measurement mutual-inductor, set up on main circuit board and with operating device's pivot matched with micro-gap switch, the pivot can trigger micro-gap switch, realize micro-gap switch's switch-on or break off, measurement circuit board subassembly including set up in the slot of base one side the casing, set up in the casing measurement circuit board, measurement circuit board on be provided with main circuit board looks grafting terminal.
2. The molded case circuit breaker according to claim 1, wherein: the electric component is arranged between the main circuit board and the fixed contact, the electric component comprises an electric screw and an electric sheet, the electric screw is arranged on the base, the electric screw penetrates through the base and is connected to the fixed contact, one end of the electric sheet is connected to the electric screw, and the other end of the electric sheet is spliced on the main circuit board.
3. The molded case circuit breaker according to claim 2, wherein: the base is provided with an insulating cover which is separated between the power taking screw and the main circuit board.
4. The molded case circuit breaker according to claim 1 or 2, wherein: the three metering transformers are respectively provided with a pin header, and the pins of the three metering transformers are respectively inserted into the main circuit board.
5. The molded case circuit breaker according to claim 1 or 2, wherein: the base plate is arranged on the base, a containing cavity is formed between the base plate and the base, the main circuit board is arranged in the containing cavity, and screws connected to the base are arranged on the base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320365953.2U CN219457490U (en) | 2023-02-25 | 2023-02-25 | Plastic case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320365953.2U CN219457490U (en) | 2023-02-25 | 2023-02-25 | Plastic case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219457490U true CN219457490U (en) | 2023-08-01 |
Family
ID=87414437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320365953.2U Active CN219457490U (en) | 2023-02-25 | 2023-02-25 | Plastic case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219457490U (en) |
-
2023
- 2023-02-25 CN CN202320365953.2U patent/CN219457490U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |