CN216288248U - Plastic case circuit breaker - Google Patents
Plastic case circuit breaker Download PDFInfo
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- CN216288248U CN216288248U CN202122386283.6U CN202122386283U CN216288248U CN 216288248 U CN216288248 U CN 216288248U CN 202122386283 U CN202122386283 U CN 202122386283U CN 216288248 U CN216288248 U CN 216288248U
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- circuit breaker
- control module
- terminal
- terminal extension
- breaker main
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Abstract
The utility model relates to a molded case circuit breaker which is characterized by comprising a circuit breaker main body and a terminal extension module, wherein a plurality of wiring boards are arranged in the terminal extension module, two ends of each wiring board are respectively positioned in a terminal cavity of the terminal extension module and a terminal cavity of the circuit breaker main body, a zero sequence mutual inductor is arranged in the terminal extension module, the wiring boards jointly penetrate through the zero sequence mutual inductor, a metering mutual inductor is further sleeved on the wiring boards for three-phase connection, and the metering mutual inductor is arranged close to one side of the circuit breaker main body. The utility model can realize the function expansion of the common molded case circuit breaker through the two modules, and reduces the time cost and the research and development cost for redesigning and developing the common molded case circuit breaker.
Description
Technical Field
The utility model belongs to the technical field of circuit breaker equipment, and relates to a molded case circuit breaker.
Background
At present, along with the popularization of an intelligent power grid, an electronic molded case circuit breaker is widely used for infrequent switching and motor protection in a distribution line, has the functions of overload long delay inverse time, short delay time, short circuit instantaneous and under-voltage protection, and can protect the line and power supply equipment from being damaged.
The type of the existing molded case circuit breaker gradually develops towards intellectualization, but the current intelligent molded case circuit breaker is an intelligent module which is directly arranged in a circuit breaker main body, so that the molded case circuit breaker without an intelligent function needs to be redesigned, and the time cost and the research and development cost are increased.
Disclosure of Invention
The utility model aims to provide a molded case circuit breaker, which realizes that an intelligent function is connected into a circuit breaker main body in a module mode, and can be adapted to an original molded case circuit breaker without the intelligent function to realize intelligent monitoring.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a moulded case circuit breaker, its characterized in that, includes circuit breaker main part and terminal extension module, be provided with a plurality of wiring boards in the terminal extension module, the both ends of wiring board are located the terminal cavity of terminal extension module and the terminal intracavity of circuit breaker main part respectively, be provided with zero sequence transformer in the terminal extension module, the wiring board passes jointly zero sequence transformer sets up, wherein is used for the three-phase connection it is equipped with the measurement mutual-inductor still to overlap on the wiring board, the measurement mutual-inductor is close to circuit breaker main part one side sets up.
The terminal expansion module is further provided with a control module shell above the terminal expansion module, a circuit board is arranged in the control module shell, a control module is arranged in the circuit board, the control module is electrically connected with a metering mutual inductor and a display screen, the metering mutual inductor detects electrical performance parameters of a wiring board and displays the electrical performance parameters through the display screen, and the display screen is arranged above the circuit board.
The utility model further provides that the control module shell and the terminal expansion module are fixed through bolts.
The circuit breaker is further provided with a first clamping plate arranged on one side, close to the circuit breaker main body, of the control module shell, a second clamping plate arranged on one side, close to the circuit breaker main body, of the terminal extension module, and a clamping groove is formed in one side, corresponding to the circuit breaker main body, of the terminal extension module.
The utility model further provides that a cover plate is arranged above the clamping groove, the cover plate is connected with the breaker main body through screws, a cylindrical clamping block is formed on one side of the cover plate, which faces the control module shell, and the cylindrical clamping block extends into a clamping hole formed in the control module shell.
The utility model has the beneficial effects that: the utility model realizes the extension of the original molded case circuit breaker without intelligent detection function by arranging the terminal extension module, only needs the terminal extension module and the control module, the metering mutual inductor in the terminal extension module realizes the metering of the circuit breaker, obtains the working state of the circuit breaker and displays the working state on a display screen, and simultaneously, the zero sequence mutual inductor is also arranged and has the function of cooperating with a release to act to cut off the power supply of the circuit breaker when the circuit in the circuit breaker has short circuit or leakage fault, and then the zero sequence mutual inductor is combined with the control module to obtain and process the data of the metering mutual inductor and the zero sequence mutual inductor and control the circuit breaker to carry out corresponding operation. The two modules can realize the functional expansion of the common molded case circuit breaker, and reduce the time cost and the research and development cost of redesigning and developing the common molded case circuit breaker.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is an exploded view of an embodiment of the present invention, schematically illustrated in fig. 1.
Fig. 2 is an exploded view of an embodiment of the present invention, fig. 2.
Fig. 3 is an exploded view of an embodiment of the present invention, schematically illustrated in fig. 3.
Reference numerals: 10. a circuit breaker main body; 20. a terminal expansion module; 201. a wiring board; 30. a terminal cavity; 40. a zero sequence transformer; 50. a metering transformer; 60. a control module housing; 70. a circuit board; 80. A display screen; 90. a first clamping connection plate; 100. a second clamping plate; 110. a clamping groove; 120. a cover plate; 140. A cylindrical fixture block; 150. a clamping hole;
Detailed Description
The following detailed description of the embodiments of the present application will be provided with reference to the drawings and examples, so that how to implement the technical means for solving the technical problems and achieving the technical effects of the present application can be fully understood and implemented.
As shown in fig. 1-3, the present invention is a molded case circuit breaker, including a circuit breaker main body 10 and a terminal extension module 20, wherein a plurality of terminal blocks 201 are disposed in the terminal extension module 20, two ends of the terminal blocks 201 are respectively located in a terminal cavity 30 of the terminal extension module 20 and a terminal cavity 30 of the circuit breaker main body 10, a zero sequence transformer 40 is disposed in the terminal extension module 20, the terminal blocks 201 commonly pass through the zero sequence transformer 40, wherein a metering transformer 50 is further sleeved on the terminal block 201 for three-phase connection, the metering transformer 50 is disposed near one side of the circuit breaker main body 10, and in addition, in the present invention, a terminal block a, a terminal block B, and a terminal block C for three-phase connection are as shown in fig. 1. The control module is also electrically connected to the zero sequence transformer 40 for detecting a short circuit current in the zero sequence transformer.
The top of terminal expansion module 20 still is provided with control module casing 60, be provided with circuit board 70 in the control module casing 60, be equipped with control module in the circuit board 70, control module is connected with measurement mutual-inductor 50, display screen 80 electricity, measurement mutual-inductor 50 detects the electrical property parameter of wiring board 201 and shows through display screen 80, display screen 80 sets up the top of circuit board 70.
The utility model realizes the extension of the original molded case circuit breaker without intelligent detection function by arranging the terminal extension module 20, only by the terminal extension module 20 and the control module, the metering transformer 50 in the terminal extension module 20 realizes the metering of the circuit breaker, obtains the working state of the circuit breaker and displays the working state on the display screen 80, and simultaneously, the zero sequence transformer 40 is also arranged to act in coordination with a release to cut off the power supply of the circuit breaker when the circuit in the circuit breaker has short circuit or leakage fault, and then the data of the metering transformer 50 and the zero sequence transformer 40 are obtained and processed by combining the control module, and the circuit breaker is controlled to carry out corresponding operation. The two modules can realize the functional expansion of the common molded case circuit breaker, and reduce the time cost and the research and development cost of redesigning and developing the common molded case circuit breaker.
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.
While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (5)
1. The utility model provides a moulded case circuit breaker, its characterized in that, includes circuit breaker main part and terminal extension module, be provided with a plurality of wiring boards in the terminal extension module, the both ends of wiring board are located the terminal cavity of terminal extension module and the terminal intracavity of circuit breaker main part respectively, be provided with zero sequence transformer in the terminal extension module, the wiring board passes jointly zero sequence transformer sets up, wherein is used for the three-phase connection it is equipped with the measurement mutual-inductor still to overlap on the wiring board, the measurement mutual-inductor is close to circuit breaker main part one side sets up.
2. The molded case circuit breaker according to claim 1, wherein a control module housing is further disposed above the terminal expansion module, a circuit board is disposed in the control module housing, a control module is disposed in the circuit board, the control module is electrically connected to a metering transformer and a display screen, the metering transformer detects electrical performance parameters of a wiring board and displays the electrical performance parameters through the display screen, and the display screen is disposed above the circuit board.
3. A molded case circuit breaker according to claim 2, wherein the control module case and the terminal expansion module are fixed by bolts.
4. A molded case circuit breaker according to claim 3, wherein a first engaging plate is provided at a side of the control module case adjacent to the breaker main body, a second engaging plate is provided at a side of the terminal extension module adjacent to the breaker main body, and an engaging groove is formed at a corresponding side of the breaker main body.
5. A molded case circuit breaker as claimed in claim 4, wherein a cover plate is disposed above the engaging groove, the cover plate is connected to the breaker main body by screws, and a cylindrical clamping block is formed on a side of the cover plate facing the control module housing and extends into an engaging hole formed on the control module housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122386283.6U CN216288248U (en) | 2021-09-30 | 2021-09-30 | Plastic case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122386283.6U CN216288248U (en) | 2021-09-30 | 2021-09-30 | Plastic case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216288248U true CN216288248U (en) | 2022-04-12 |
Family
ID=81066845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122386283.6U Active CN216288248U (en) | 2021-09-30 | 2021-09-30 | Plastic case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216288248U (en) |
-
2021
- 2021-09-30 CN CN202122386283.6U patent/CN216288248U/en active Active
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