CN223757472U - Circuit breaker assembly - Google Patents
Circuit breaker assemblyInfo
- Publication number
- CN223757472U CN223757472U CN202520083463.2U CN202520083463U CN223757472U CN 223757472 U CN223757472 U CN 223757472U CN 202520083463 U CN202520083463 U CN 202520083463U CN 223757472 U CN223757472 U CN 223757472U
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- Prior art keywords
- circuit breaker
- arc
- wiring terminal
- cover body
- maintenance
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Abstract
本实用新型属于低压电器技术领域，公开了断路器组件。该断路器组件包括断路器本体，断路器本体包括第一接线端子；消弧维护开关，设置于断路器本体的外侧，消弧维护开关包括第二接线端子以及具有打开控制位和关闭控制位的消弧维护控制件，消弧维护控制件通过第二接线端子与第一接线端子电连接，消弧维护控制件处于打开控制位能降低断路器本体的短路瞬时动作电流值，减少故障电流的电弧能量释放。本实用新型能够缩减分断时间，减轻电网电弧危害，保证操作人员的安全，降低电气设备的损坏风险。
This utility model belongs to the field of low-voltage electrical appliance technology and discloses a circuit breaker assembly. The circuit breaker assembly includes a circuit breaker body, which includes a first terminal block; and an arc-suppression maintenance switch disposed on the outside of the circuit breaker body. The arc-suppression maintenance switch includes a second terminal block and an arc-suppression maintenance control element having an open control position and a closed control position. The arc-suppression maintenance control element is electrically connected to the first terminal block through the second terminal block. When the arc-suppression maintenance control element is in the open control position, it can reduce the instantaneous short-circuit operating current value of the circuit breaker body and reduce the release of arc energy from the fault current. This utility model can reduce breaking time, mitigate the hazards of electric arcs in the power grid, ensure the safety of operators, and reduce the risk of damage to electrical equipment.
Description
Technical Field
The utility model relates to the technical field of piezoelectric devices, in particular to a breaker assembly.
Background
The circuit breaker is a mechanical switching device which can be used for switching on, carrying and breaking current under the condition of normal circuit and also can be used for switching on, carrying for a certain time and breaking current under the condition of specified abnormal circuit (such as short circuit). The circuit breaker mainly plays a role in protecting a switching device in a low-voltage distribution network, and the circuit breaker provides overload and short-circuit protection for a line. Plastic case type circuit breakers are one of them, and high capacity plastic case type circuit breakers refer to circuit breakers having rated currents up to or exceeding 800A.
In some application scenarios, if the rated or adjustable maximum continuous current trip of the actual overcurrent device installed in the circuit breaker is set to 1200A or higher, corresponding measures need to be taken to reduce breaking time, otherwise electric arc hazard of the power grid and personal safety are easily caused.
Disclosure of utility model
The utility model aims to provide a circuit breaker assembly, which shortens breaking time, reduces electric arc hazard of a power grid, ensures safety of operators and reduces damage risk of electrical equipment.
To achieve the purpose, the utility model adopts the following technical scheme:
a circuit breaker assembly, comprising:
The main body of the circuit breaker, the breaker body comprises a first wiring terminal;
The arc extinction maintenance switch is arranged on the outer side of the breaker body and comprises a second wiring terminal and an arc extinction maintenance control piece with an opening control position and a closing control position, the arc extinction maintenance control piece is electrically connected with the first wiring terminal through the second wiring terminal, and the arc extinction maintenance control piece is positioned in the opening control position energy to reduce the short circuit instantaneous action current value of the breaker body.
As an alternative to the circuit breaker assembly, the arc extinction maintenance switch further includes:
The protection unit comprises a cover body and a shell which are mutually buckled, wherein an accommodating cavity is formed by surrounding the cover body and the shell, the arc extinction maintenance control piece is rotatably arranged on the cover body, and the second wiring terminal is arranged on the shell;
The first switching circuit board is arranged in the accommodating cavity, and the second wiring terminal and the arc extinction maintenance control piece are electrically connected with the first switching circuit board.
As the alternative of circuit breaker subassembly, be provided with a plurality of first connecting hole on the casing, be provided with a plurality of second connecting hole on the lid, arc extinction maintenance switch still includes:
And the first fastener passes through the first connecting hole and is connected with the second connecting hole.
As the alternative scheme of circuit breaker subassembly, circumference interval is provided with a plurality of erection column in the casing, every all be provided with the third connecting hole on the erection column, be provided with a plurality of fourth connecting hole on the first switching circuit board, arc extinction maintenance switch still includes:
And the second fastening piece penetrates through the fourth connecting hole and is connected with the third connecting hole.
As an alternative to the circuit breaker assembly, the arc extinction maintenance switch further comprises a high voltage power supply input and a low voltage power supply input, both of which are electrically connected with the first switching circuit board.
As an alternative to the circuit breaker assembly, the arc extinction maintenance switch further includes:
The arc extinction maintenance control piece comprises a cover body, a power supply indicator, a status indicator and a state indicator, wherein the power supply indicator is arranged on the cover body and is electrically connected with the first switching circuit board, and/or the status indicator is arranged on the cover body and is electrically connected with the first switching circuit board and is used for indicating that the arc extinction maintenance control piece is in an opening control position or a closing control position.
As an alternative to the circuit breaker assembly, the arc extinction maintenance switch further includes:
the installation buckle is arranged on the outer wall surface of the cover body, one end of the installation buckle is provided with a plug-in portion, and the plug-in portion is used for being plugged into a cabinet door of the power distribution cabinet.
As an alternative scheme of the breaker assembly, the inner wall surface of the installation buckle is provided with a strip-shaped protruding portion, the outer wall surface of the cover body is provided with a strip-shaped groove, the strip-shaped protruding portion is located in the strip-shaped groove, and/or the inner wall surface of the plug-in portion is provided with a first unidirectional rack portion, the outer wall surface of the cover body is provided with a second unidirectional rack portion, the first unidirectional rack portion is meshed with the second unidirectional rack portion, and the installation buckle can move on the cover body along a direction away from the shell to achieve cabinet door installation with different thicknesses.
As an alternative to the circuit breaker assembly, the arc extinction maintenance switch further includes:
The protection unit comprises a first protection cover body and a second protection cover body which are mutually hinged, wherein the first protection cover body is connected with the cover body, the first protection cover body and the second protection cover body enclose to form a storage cavity, and the arc extinction maintenance control piece is positioned in the storage cavity.
As an alternative of the circuit breaker assembly, the circuit breaker assembly further includes a neutral transformer disposed outside the circuit breaker body, the neutral transformer includes a third connection terminal, and the circuit breaker body further includes:
The shell is provided with an arc extinction maintenance switch which is arranged at the outer side of the shell;
The second switching circuit board is fixedly arranged on the inner side of the shell, the first wiring terminal, the fourth wiring terminal and the fifth wiring terminal are respectively arranged on the second switching circuit board, the first wiring terminal and the fourth wiring terminal are exposed out of the shell, and the third wiring terminal is electrically connected with the fourth wiring terminal so that a grounding current signal collected by the neutral transformer is conducted to the second switching circuit board;
and the controller is arranged in the shell and is in communication connection with the fifth wiring terminal.
Compared with the prior art, the utility model has the beneficial effects that:
According to the breaker assembly provided by the utility model, the breaker body and the arc extinction maintenance switch are arranged separately, so that the breaker assembly is simple in structure, small in size and low in cost. When the arc extinction maintenance control piece is in an opening control position, the short circuit instantaneous action current value of the breaker body is reduced to eight times smaller than the rated working current, and through the current limiting of the short circuit current, the let-through energy of the electric arc generated between the moving contact and the fixed contact can be reduced, so that the electric arc energy is greatly reduced and limited, and on the other hand, the breaking time is shortened by reducing the short circuit instantaneous action current value. The arc extinction maintenance function is especially applied to a scene of overhauling and maintaining a lower-stage branch of a main circuit breaker or a scene of manually switching off a lower-stage branch circuit, so that the damage of an electric arc of a power grid can be effectively reduced, and the personal safety can be protected. When the arc extinction maintenance control piece is in a closing control position, the short circuit instantaneous action current value of the breaker body is a preset value, and the preset value is more than or equal to eight times of rated working current.
Drawings
FIG. 1 is a schematic diagram of an exemplary circuit interrupter assembly (connection wires not shown);
FIG. 2 is a schematic view of a first view of an arc suppression maintenance switch in accordance with an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a second view of an arc suppression maintenance switch in accordance with an embodiment of the present utility model;
FIG. 4 is an exploded schematic view of an arc suppression maintenance switch in an embodiment of the utility model;
FIG. 5 is a schematic view of a cover according to an embodiment of the present utility model;
FIG. 6 is a schematic view of a mounting clip according to an embodiment of the present utility model;
FIG. 7 is a schematic diagram of an embodiment of an interrupt router body;
Fig. 8 is a schematic structural diagram of a second switching circuit board according to an embodiment of the utility model.
In the figure:
1. 2, arc extinction maintenance switch;
11. The device comprises a first wiring terminal, a 12, a shell, a 13, a second switching circuit board, a 14, a fourth wiring terminal, a 15 and a fifth wiring terminal;
21. The second wiring terminal comprises 22 parts of arc extinction maintenance control parts, 23 parts of cover bodies, 231 parts of second connecting holes, 232 parts of strip-shaped grooves, 233 parts of second unidirectional rack parts, 24 parts of shell bodies, 241 parts of first connecting holes, 242 parts of mounting columns, 2421 parts of third connecting holes, 25 parts of first switching circuit boards, 251 parts of fourth connecting holes, 26 parts of first fastening parts, 27 parts of second fastening parts, 28 parts of high-voltage power supply input ends, 29 parts of high-voltage power supply input ends, 210 parts of power supply indication lamps, 211 parts of status indication lamps, 212 parts of mounting buckles, 2121 parts of inserting parts, 21211 parts of first unidirectional rack parts, 2122 parts of strip-shaped protruding parts, 213 parts of protection units, 2131 parts of first protection cover bodies, 2132 parts of second protection cover bodies, 214 parts of second protection cover bodies and gaskets.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
In order to shorten breaking time, reduce electric arc hazard of a power grid and ensure personal safety, the embodiment provides a circuit breaker assembly, and the specific contents of the embodiment are described in detail below with reference to fig. 1 to 8. The circuit breaker body can be a molded case circuit breaker specifically, the instantaneous protection action value of the molded case circuit breaker short circuit is 8-12 times of rated current, and the circuit breaker body is a common circuit breaker structure in the prior art, and the working principle of the circuit breaker body is not repeated in detail.
As shown in fig. 1 to 6, the circuit breaker assembly in the present embodiment includes a circuit breaker body 1 and an arc extinction maintenance switch 2, wherein the circuit breaker body 1 includes a first connection terminal 11. The arc extinction maintenance switch 2 is arranged on the outer side of the breaker body 1, the arc extinction maintenance switch 2 comprises a second wiring terminal 21 and an arc extinction maintenance control member 22 with an opening control position and a closing control position, the arc extinction maintenance control member 22 is electrically connected with the first wiring terminal 11 through the second wiring terminal 21, the arc extinction maintenance control member 22 is positioned at the opening control potential to reduce the short circuit instantaneous action current value of the breaker body 1, and the arc energy release of fault current is reduced. Specifically, the arc extinguishing maintenance control member 22 is configured such that, when the arc extinguishing maintenance control member 22 is in the open control position, the short-circuit instantaneous action current value of the circuit breaker body 1 is eight times smaller than the rated operation current, and when the arc extinguishing maintenance control member 22 is in the close control position, the short-circuit instantaneous action current value of the circuit breaker body 1 is a preset value, the preset value being eight times or more of the rated operation current. Illustratively, the short-circuit instantaneous protection action value of the normal working state of the breaker body 1 in the present embodiment is 8-12 times of the rated current, and when the breaker body 1 enters the arc maintenance mode, the short-circuit instantaneous action current value of the breaker body 1 is 2 times of the rated working current.
The breaker assembly provided by the embodiment has the advantages of simple structure, small volume and low cost by separating the breaker body 1 and the arc extinction maintenance switch 2. When the arc extinction maintenance control piece 22 is in the opening control position, the short circuit instantaneous action current value of the breaker body 1 is reduced to be eight times smaller than the rated working current, and through the current limiting of the short circuit current, the let-through energy of the electric arc generated between the moving contact and the fixed contact can be reduced, so that the electric arc energy is greatly reduced and limited, and on the other hand, the breaking time is shortened by reducing the short circuit instantaneous action current value. The arc extinction maintenance function is especially applied to a scene of overhauling and maintaining a lower-stage branch of a main circuit breaker or a scene of manually switching off a lower-stage branch circuit, so that the damage of an electric arc of a power grid can be effectively reduced, and the personal safety can be protected. When the arc extinction maintenance control member 22 is in the closing control position, the short-circuit instantaneous action current value of the breaker body 1 is a preset value, and the preset value is equal to or greater than eight times the rated operation current.
Further, as shown in fig. 3 to 6, the arc extinguishing maintenance switch 2 further includes a protection unit and a first switching circuit board 25, the protection unit includes a cover body 23 and a housing 24 that are fastened to each other, the cover body 23 and the housing 24 enclose to form a containing cavity, the arc extinguishing maintenance control member 22 is rotatably disposed on the cover body 23, and the second connection terminal 21 is disposed on the housing 24. The first switching circuit board 25 is disposed in the accommodation chamber, and the second connection terminal 21 and the arc extinguishing maintenance control member 22 are electrically connected to the first switching circuit board 25. The protection unit is added for protecting and installing the first switching circuit board 25 and the arc extinguishing maintenance control member 22.
Further, the casing 24 is provided with a plurality of first connecting holes 241, the cover 23 is provided with a plurality of second connecting holes 231, and the arc extinguishing maintenance switch 2 further includes a first fastener 26, and the first fastener 26 passes through the first connecting holes 241 and is connected with the second connecting holes 231. The cover 23 and the shell 24 are connected by the first fastener 26, so that the connection stability between the cover and the shell is ensured.
Further, a plurality of mounting posts 242 are circumferentially spaced in the housing 24, a third connection hole 2421 is provided in each mounting post 242, a plurality of fourth connection holes 251 are provided in the first switching circuit board 25, and the arc extinguishing maintenance switch 2 further includes a second fastening member 27, wherein the second fastening member 27 is connected to the third connection hole 2421 through the fourth connection holes 251. The second fastening member 27 is used to mount the first switching circuit board 25 in the housing 24, so that the connection between the two is ensured. Alternatively, the first and second fasteners 26, 27 may be, but are not limited to, screws or bolts, etc., without undue limitation herein.
Further, the arc extinguishing maintenance switch 2 further includes a protection unit 213 including a first protection cover 2131 and a second protection cover 2132 hinged to each other, the first protection cover 2131 is connected to the cover 23, the first protection cover 2131 and the second protection cover 2132 enclose a storage cavity, and the arc extinguishing maintenance control member 22 is located in the storage cavity. When maintenance operation is needed, the second protective cover 2132 is opened, and after the operation is completed, the second protective cover 2132 is closed, so that misoperation of the arc extinguishing maintenance control piece 22 by other people is avoided.
Further, the arc suppression maintenance switch 2 further includes a high voltage power supply input 28 and a low voltage power supply input 29, both of which, the high voltage power supply input 28 and the low voltage power supply input 29 are electrically connected to the first switching circuit board 25. By adding the high-voltage power input end 28 and the low-voltage power input end 29, the first switching circuit board 25 meets the requirements of two power supply modes of high voltage and low voltage, and the power utilization application range of the arc extinction maintenance switch 2 is enlarged.
Further, the arc extinction maintenance switch 2 further comprises a power indicator 210, wherein the power indicator 210 is arranged on the cover 23 and is electrically connected with the first switching circuit board 25, and/or the arc extinction maintenance switch 2 further comprises a status indicator 211, wherein the status indicator 211 is arranged on the cover 23 and is electrically connected with the first switching circuit board 25, and the status indicator 211 is used for indicating that the arc extinction maintenance control piece 22 is in an on control position or an off control position. When the arc extinction maintenance switch 2 is turned on, the power indication lamp 210 is always on. When the arc extinction maintenance switch 2 rotates to be in the closing control position, the state indicator lamp 211 is turned off, the second protective cover 2132 of the arc extinction maintenance switch 2 is turned on, the arc extinction maintenance control piece 22 is turned to be in the opening control position, the state indicator lamp 211 is lighted, the circuit breaker body 1 enters an arc maintenance mode, and the short-circuit instantaneous action current is reduced to 2 times of rated working current. After the overhaul and the operation of the switching-on and switching-off of the lower branch circuit are finished, the arc extinction maintenance switch 2 is turned back to the closing control position, and the circuit breaker body 1 matched with the arc extinction maintenance switch is restored to the normal working state.
Further, the arc extinction maintenance switch 2 further comprises a plurality of installation buckles 212, the installation buckles 212 are arranged on the outer wall surface of the cover body 23, one ends of the installation buckles 212 are provided with plug-in portions 2121, and the plug-in portions 2121 are used for being plugged into cabinet doors of the power distribution cabinet. Through all setting up installation buckle 212 in four corners of hanging of lid 23 outer wall, utilize grafting 2121 on the installation buckle 212 to be convenient for with arc extinction maintenance switch 2 whole assembly to the cabinet door of switch board on, maintainer is through controlling arc extinction maintenance switch 2 and then adjust the instantaneous action current value of short circuit of circuit breaker body 1. Optionally, the arc extinction maintenance switch 2 further comprises a gasket 214, wherein the gasket 214 is clamped between the contact surface of the cover body 23 and the cabinet door, so that the contact surface of the cover body 23 and the cabinet door is tightly contacted, and rainwater is prevented from penetrating into the power distribution cabinet.
Further, the inner wall surface of the mounting buckle 212 is provided with a bar-shaped protruding portion 2122, the outer wall surface of the cover 23 is provided with a bar-shaped groove 232, the bar-shaped protruding portion 2122 is located in the bar-shaped groove 232, and/or the inner wall surface of the plugging portion 2121 is provided with a first unidirectional rack portion 21211, the outer wall surface of the cover 23 is provided with a second unidirectional rack portion 233, the first unidirectional rack portion 21211 is meshed with the second unidirectional rack portion 233, and the mounting buckle 212 can move on the cover 23 along the direction away from the shell 24, so that cabinet door mounting with different thicknesses is achieved. Through addding bar bellying 2122 and bar recess 232, increase the spacing area of contact of installation buckle 212 and lid 23 outer wall surface on the one hand, help improving the assembly fastness of installation buckle 212 and lid 23, on the other hand can also guide the regulation removal of installation buckle 212 on lid 23. By adding the first unidirectional rack portion 21211 and the second unidirectional rack portion 233, the position of the mounting buckle 212 on the cover 23 can be adjusted, the thickness dimension of the whole arc extinction maintenance switch 2 meets the mounting requirement, and the mounting buckle 212 can be prevented from falling from the cover 23.
Further, as shown in fig. 7 in combination with fig. 8, the circuit breaker assembly further includes a neutral transformer (not shown in the drawings) disposed outside the circuit breaker body 1, the neutral transformer including a third connection terminal, and the circuit breaker body 1 further includes a housing 12, a second switching circuit board 13, and a controller. Wherein the arc extinction maintenance switch 2 is arranged outside the housing 12. The second switching circuit board 13 is fixedly arranged on the inner side of the shell 12, the second switching circuit board 13 is respectively provided with a first wiring terminal 11, a fourth wiring terminal 14 and a fifth wiring terminal 15, the first wiring terminal 11 and the fourth wiring terminal 14 are exposed out of the shell 12, and the third wiring terminal is electrically connected with the fourth wiring terminal 14 so that a grounding current signal collected by the neutral transformer is conducted to the second switching circuit board 13. The controller is arranged in the shell 12 and is in communication connection with the fifth wiring terminal 15, so that the controller can analyze and judge the grounding current signal according to a preset program, the grounding fault can be detected in real time, the use safety of the whole breaker body 1 is ensured, and the control signal of the arc extinction maintenance control piece 22 of the arc extinction maintenance switch 2 is transmitted to the controller, so that the short circuit instantaneous action current value of the breaker body 1 is reduced to be eight times smaller than the rated working current.
Optionally, the circuit breaker assembly further comprises a connecting wire, a first end of which is plugged into the first connection terminal 11 and the third connection terminal, and a second end of which is plugged into the second connection terminal 21 and the fourth connection terminal 14. Mounting holes are provided in the second transfer circuit board 13 to facilitate mounting and fixing of the second transfer circuit board 13 into the housing 12.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. A circuit breaker assembly, comprising:
A circuit breaker body (1), the circuit breaker body (1) comprising a first connection terminal (11);
the arc extinction maintenance switch (2) is arranged on the outer side of the breaker body (1), the arc extinction maintenance switch (2) comprises a second wiring terminal (21) and an arc extinction maintenance control member (22) with an opening control position and a closing control position, the arc extinction maintenance control member (22) is electrically connected with the first wiring terminal (11) through the second wiring terminal (21), and the arc extinction maintenance control member (22) is in the opening control potential energy to reduce the short circuit instantaneous action current value of the breaker body (1).
2. The circuit breaker assembly according to claim 1, wherein the arc suppression maintenance switch (2) further comprises:
The protection unit comprises a cover body (23) and a shell (24) which are buckled with each other, wherein an accommodating cavity is formed by surrounding the cover body (23) and the shell (24), the arc extinction maintenance control piece (22) is rotatably arranged on the cover body (23), and the second wiring terminal (21) is arranged on the shell (24);
The first switching circuit board (25) is arranged in the accommodating cavity, and the second wiring terminal (21) and the arc extinction maintenance control piece (22) are electrically connected with the first switching circuit board (25).
3. The circuit breaker assembly according to claim 2, characterized in that the housing (24) is provided with a plurality of first connection holes (241), the cover (23) is provided with a plurality of second connection holes (231), the arc extinction maintenance switch (2) further comprises:
-a first fastener (26), said first fastener (26) being connected to said second connection hole (231) through said first connection hole (241).
4. The circuit breaker assembly of claim 2, wherein a plurality of mounting posts (242) are circumferentially spaced within the housing (24), each of the mounting posts (242) being provided with a third connection hole (2421), the first switching circuit board (25) being provided with a plurality of fourth connection holes (251), the arc suppression maintenance switch (2) further comprising:
-a second fastener (27), said second fastener (27) being connected to said third connection hole (2421) through said fourth connection hole (251).
5. The circuit breaker assembly of claim 2, wherein the arc suppression maintenance switch (2) further comprises a high voltage power supply input (28) and a low voltage power supply input (29), the high voltage power supply input (28) and the low voltage power supply input (29) each being electrically connected to the first switching circuit board (25).
6. The circuit breaker assembly of claim 5, wherein the arc suppression maintenance switch (2) further comprises:
A power indicator (210), wherein the power indicator (210) is arranged on the cover body (23) and is electrically connected with the first switching circuit board (25), and/or
The state indicating lamp (211), the state indicating lamp (211) set up in on the lid (23) and with first switching circuit board (25) electricity is connected, the state indicating lamp (211) is used for instructing arc extinction maintenance control piece (22) are in open control position or closed control position.
7. The circuit breaker assembly according to claim 2, wherein the arc suppression maintenance switch (2) further comprises:
The power distribution cabinet comprises a plurality of installation buckles (212), wherein the installation buckles (212) are arranged on the outer wall surface of the cover body (23), one end of each installation buckle (212) is provided with a plug-in portion (2121), and the plug-in portions (2121) are used for being plugged into cabinet doors of the power distribution cabinet.
8. The circuit breaker assembly according to claim 7, wherein the inner wall surface of the mounting buckle (212) is provided with a bar-shaped protruding part (2122), the outer wall surface of the cover body (23) is provided with a bar-shaped groove (232), the bar-shaped protruding part (2122) is positioned in the bar-shaped groove (232), and/or
The inner wall surface of the plug-in part (2121) is provided with a first unidirectional rack part (21211), the outer wall surface of the cover body (23) is provided with a second unidirectional rack part (233), the first unidirectional rack part (21211) is meshed with the second unidirectional rack part (233), and the mounting buckle (212) can move on the cover body (23) along a direction away from the shell (24).
9. A circuit breaker assembly according to claim 3, wherein the arc suppression maintenance switch (2) further comprises:
The protection unit (213) comprises a first protection cover body (2131) and a second protection cover body (2132) which are mutually hinged, wherein the first protection cover body (2131) is connected with the cover body (23), a storage cavity is formed by encircling the first protection cover body (2131) and the second protection cover body (2132), and the arc extinction maintenance control piece (22) is positioned in the storage cavity.
10. The circuit breaker assembly according to any one of claims 1-9, characterized in that the circuit breaker assembly further comprises a neutral transformer arranged outside the circuit breaker body (1), the neutral transformer comprising a third connection terminal, the circuit breaker body (1) further comprising:
A housing (12), wherein the arc extinguishing maintenance switch (2) is arranged outside the housing (12);
The second switching circuit board (13), the second switching circuit board (13) is fixedly arranged on the inner side of the shell (12), the second switching circuit board (13) is respectively provided with the first wiring terminal (11), the fourth wiring terminal (14) and the fifth wiring terminal (15), the first wiring terminal (11) and the fourth wiring terminal (14) are exposed out of the shell (12), and the third wiring terminal is electrically connected with the fourth wiring terminal (14) so that a grounding current signal collected by the neutral transformer is conducted to the second switching circuit board (13);
And the controller is arranged in the shell (12) and is in communication connection with the fifth wiring terminal (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520083463.2U CN223757472U (en) | 2025-01-14 | 2025-01-14 | Circuit breaker assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520083463.2U CN223757472U (en) | 2025-01-14 | 2025-01-14 | Circuit breaker assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223757472U true CN223757472U (en) | 2026-01-02 |
Family
ID=98202213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520083463.2U Active CN223757472U (en) | 2025-01-14 | 2025-01-14 | Circuit breaker assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223757472U (en) |
-
2025
- 2025-01-14 CN CN202520083463.2U patent/CN223757472U/en active Active
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