Environment-friendly cabinet circuit breaker

Abstract

The utility model relates to an environment-friendly cabinet circuit breaker which is characterized in that the environment-friendly cabinet circuit breaker comprises a frame main body, a circuit breaker module and an isolation module are arranged in the frame main body, the isolation module comprises an isolation main shaft and arc-shaped pull plates uniformly distributed on the isolation main shaft, one end of each arc-shaped pull plate is provided with a positioning sleeve, the positioning sleeve is connected with a moving knife, and the moving knife is connected with a switch. In the rotating process of the isolation main shaft, the positioning sleeve drives the moving knife to be in contact with or disconnected from the arc extinguish chamber copper bar and the contact of the grounding assembly, a connecting hole is formed in one end of the positioning sleeve and used for being connected with the arc-shaped pull plate, and the other end of the positioning sleeve is located in a space formed by the moving knife and fixed to the moving knife through a fastener. According to the utility model, the arc-shaped pulling plate and the moving knife are connected through the positioning sleeve, the positioning effect of the arc-shaped pulling plate in the process of driving the moving knife to rotate is ensured through the arrangement of the positioning sleeve, and the stability and the reliability of the moving knife in the switching-on and switching-off process are improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to an environmental protection cabinet circuit breaker. Background Technology

[0002] In the field of power engineering, circuit breakers are critical electrical devices whose primary function is to protect power systems and their loads from overloads, short circuits, and other faults. Circuit breakers prevent accidents by detecting abnormal current in the circuit and quickly disconnecting it. A circuit breaker typically consists of a frame, a circuit breaker module, and an isolation module. The isolation module ensures that the contacts accurately and reliably separate or engage during the breaking and closing processes. In the field of environmental engineering, with increasing emphasis on environmental protection, environmentally friendly circuit breakers have gradually become a focus of research and development. Environmentally friendly circuit breakers not only require the functions of traditional circuit breakers but also need to meet environmental requirements, such as reducing the emission of harmful substances and lowering noise levels.

[0003] The existing arc-shaped tie rod is directly connected to the moving blade and achieves linkage, thereby driving the moving blade to open and close the circuit breaker. However, this structure has poor positioning effect during use, and the circuit breaker cannot be closed properly during rotation. Summary of the Invention

[0004] The purpose of this utility model is to provide an environmentally friendly cabinet circuit breaker to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An environmental protection cabinet circuit breaker is characterized by comprising a frame body, within which a circuit breaker module and an isolation module are disposed. The isolation module includes an isolation spindle, arc-shaped pull plates evenly distributed on the isolation spindle, and a positioning sleeve at one end of the arc-shaped pull plates. The positioning sleeve is connected to a moving blade. During the rotation of the isolation spindle, the positioning sleeve drives the moving blade to contact or disconnect with the contacts of the arc-extinguishing chamber copper busbar and the grounding component. One end of the positioning sleeve forms a connecting hole for connecting the arc-shaped pull plates, and the other end is located in the space formed by the moving blade and is fixed to the moving blade by fasteners.

[0007] In a further embodiment of this invention, the isolation module also includes an insulating support plate, on which a moving blade support plate is disposed. The moving blade support plate is hinged to the moving blade, and the moving blade rotates around its hinged end.

[0008] The present invention further includes an installation protrusion on the insulating support plate, an insulating partition on the installation protrusion, and the insulating partition being disposed within the space between the moving blades.

[0009] The present invention further includes a magnetically conductive element provided on the insulating partition, the magnetically conductive element being positioned toward the moving blade, and the magnetically conductive element guiding the arc to move toward one side of the insulating support plate when the moving blade is disconnected from the copper busbar of the arc-extinguishing chamber.

[0010] The present invention further includes an installation groove for placing a magnetically conductive element on the insulating partition. The magnetically conductive element is an arc-shaped component, and its bending direction is from the upper end to the lower end of the insulating partition.

[0011] The beneficial effects of this utility model are as follows: By setting a positioning sleeve to connect the arc-shaped pull plate and the moving knife, the positioning effect of the arc-shaped pull plate driving the moving knife to rotate is ensured, thereby improving the stability and reliability of the moving knife when opening and closing the circuit breaker. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a schematic diagram of the insulating partition structure of an embodiment of the present utility model.

[0015] Reference numerals: 10, main frame; 20, circuit breaker module; 201, arc-extinguishing chamber copper busbar; 30, isolation module; 301, isolation spindle; 302, arc-shaped pull plate; 303, positioning sleeve; 304, moving blade; 305, insulating support plate; 306, moving blade support plate; 307, mounting protrusion; 40, grounding assembly; 401, contact; 50, insulating partition; 501, magnetic conductive element; 502, mounting groove; Detailed Implementation

[0016] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0017] like Figure 1-2As shown, this utility model is an environmental protection cabinet circuit breaker, including a frame body 10. The frame body 10 is provided with a circuit breaker module 20 and an isolation module 30. The isolation module 30 includes an isolation spindle 301, an arc-shaped pull plate 302 evenly distributed on the isolation spindle 301, and a positioning sleeve 303 at one end of the arc-shaped pull plate 302. The positioning sleeve 303 is connected to a moving blade 304. During the rotation of the isolation spindle 301, the positioning sleeve 303 drives the moving blade 304 to contact or disconnect with the contact 401 of the arc-extinguishing chamber copper busbar 201 and the grounding component 40. One end of the positioning sleeve 303 is formed with a connecting hole for connecting the arc-shaped pull plate 302, and the other end is located in the space formed by the moving blade 304 and is fixed to the moving blade 304 by fasteners.

[0018] The isolation module 30 of this utility model further includes an insulating support plate 305. A moving blade support plate 306 is disposed on the insulating support plate 305. The moving blade support plate 306 is hinged to the moving blade 304, and the moving blade 304 rotates around its hinged end. An mounting protrusion 307 is provided on the insulating support plate 305, and an insulating partition 50 is disposed on the mounting protrusion 307. The insulating partition 50 is disposed within the space between the moving blades 304. The insulating partition 50 serves to separate the electric arc generated by the opening and closing of each moving blade 304.

[0019] The insulating partition 50 is equipped with a magnetically conductive element 501, which faces the moving blade 304. When the moving blade 304 separates from the arc-extinguishing chamber copper busbar 201, the magnetically conductive element 501 guides the electric arc towards the insulating support plate 305. Specifically, the insulating partition 50 has a mounting groove 502 for placing the magnetically conductive element 501. The magnetically conductive element 501 is an arc-shaped component, with its bending direction from the upper end to the lower end of the insulating partition 50, guiding the electric arc to the insulating support plate 305 and reducing the impact of the electric arc on other components. The magnetically conductive element 501 is a magnet.

[0020] In this invention, a positioning sleeve 303 is provided to connect the arc-shaped pull plate 302 and the moving knife 304. The positioning sleeve 303 ensures the positioning effect during the rotation of the moving knife 304 driven by the arc-shaped pull plate 302, thereby improving the stability and reliability of the moving knife 304 when opening and closing the circuit breaker.

[0021] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0023] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept by means of the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An environmental protection cabinet circuit breaker, characterized in that, The device includes a frame body, within which a circuit breaker module and an isolation module are installed. The isolation module includes an isolation spindle, arc-shaped pull plates evenly distributed on the isolation spindle, and a positioning sleeve at one end of the arc-shaped pull plates. The positioning sleeve is connected to a moving blade. During the rotation of the isolation spindle, the positioning sleeve drives the moving blade to contact or disconnect with the contacts of the arc-extinguishing chamber copper busbar and the grounding component. One end of the positioning sleeve has a connecting hole for connecting the arc-shaped pull plates, and the other end is located in the space formed by the moving blade and is fixed to the moving blade by fasteners.

2. The environmental protection cabinet circuit breaker according to claim 1, characterized in that, The isolation module also includes an insulating support plate, on which a moving blade support plate is disposed. The moving blade support plate is hinged to the moving blade, and the moving blade rotates around its hinged end.

3. The environmental protection cabinet circuit breaker according to claim 2, characterized in that, The insulating support plate is provided with mounting protrusions, and an insulating partition is provided on the mounting protrusions. The insulating partition is located in the space between the moving blades.

4. The environmental protection cabinet circuit breaker according to claim 3, characterized in that, A magnetically conductive element is provided on the insulating partition, and the magnetically conductive element is positioned towards the moving blade. When the moving blade is disconnected from the copper busbar of the arc-extinguishing chamber, the magnetically conductive element guides the arc to move to one side of the insulating support plate.

5. The environmental protection cabinet circuit breaker according to claim 4, characterized in that, The insulating partition has a slot for placing a magnetically conductive element. The magnetically conductive element is an arc-shaped part, and its bending direction is from the upper end to the lower end of the insulating partition.

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