Isolation structure for circuit breaker

By designing a retractable and foldable isolation structure, the problem of limited operating space for circuit breakers is solved, achieving a flexible operating environment and safe circuit breaker isolation. This enhances the stability and sealing of the structure, making it suitable for circuit breaker isolation and maintenance.

CN223828400UActive Publication Date: 2026-01-23TAIM ELECTRIC (WUHU) CO LTD
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Patent Information

Application Number
CN202520182777.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-01-23
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

The fixed shape and size of existing circuit breaker isolation structures limit the operating space and cause inconvenience to operators.

Method used

An isolation structure was designed, comprising a main frame, a telescopic folding isolation box, a connecting frame, a sealing slide, a metal sealing strip cover, and an acrylic transparent plate. Combined with bolt fixing and a magnetic frame insertion slot, it achieves flexibility, insulation, and mobility, enhances sealing and stability, and facilitates operation and observation.

Benefits of technology

It provides a flexible operating space, ensures operational safety and structural stability, prevents dust and moisture from entering, avoids the impact of shock, facilitates the disassembly and installation of the circuit breaker, and meets electrical safety requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The isolation structure comprises a main frame, one end of the front surface of the main frame is fixedly connected with a telescopic folding isolation frame-shaped box, one end of the front surface of the telescopic folding isolation frame-shaped box is fixedly connected with a connecting frame, the middle end of the front surface of the main frame is sleeved with a circuit breaker body, and the inner side of the connecting frame is slidably connected with a sealing sliding frame. A metal sealing strip-shaped cover is fixedly connected to one end of the top of the sealing sliding frame, an acrylic transparent plate is fixedly connected to the inner side of the sealing sliding frame, a magnetic frame is fixedly connected to one end of the top of the connecting frame, and a bolt is arranged at one end of the top of the main frame; according to the utility model, the main frame is a basic support, and the telescopic folding isolation frame-shaped box and the connecting frame on the front surface of the main frame provide an isolation environment for the circuit breaker body, so that the circuit breaker has flexibility and insulativity and is convenient to operate; the sealing sliding frame achieves mobility and the function of an observation window through the metal sealing strip-shaped cover and the acrylic transparent plate, the magnetic frame is inserted into a groove of the cover to fix the sealing sliding frame, sealing and stability are enhanced, and interference is prevented.
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Description

Technical Field

[0001] This utility model relates to the technical field of circuit breaker isolation equipment, specifically an isolation structure for circuit breakers. Background Technology

[0002] A circuit breaker is an electrical device that can automatically cut off fault current in a circuit and control and protect the circuit under both normal and fault conditions. The isolation structure is mainly used to effectively isolate the circuit breaker from the external environment or other electrical equipment when needed. It can prevent accidental current conduction from causing harm to personnel and equipment during circuit breaker maintenance, repair or fault conditions.

[0003] The isolation structure of a circuit breaker can safely and effectively isolate the circuit breaker during maintenance, repair, or failure, preventing the spread of faults, improving system reliability, and meeting electrical safety regulations. Most existing circuit breaker isolation structures adopt fixed shapes and sizes. Although they have a certain isolation function, when the circuit breaker needs to be operated or maintained, such fixed structures may restrict the operating space and cause inconvenience to the operators. Utility Model Content

[0004] The purpose of this utility model is to provide an isolation structure for circuit breakers. In order to solve the problem that most of the existing isolation structures of circuit breakers adopt fixed shapes and sizes, although they have a certain isolation function, when it is necessary to operate or maintain the circuit breaker, such fixed structures may restrict the operating space and cause inconvenience to the operators.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an isolation structure for a circuit breaker, comprising: a main frame, a telescopic folding isolation frame-shaped box fixedly connected to one end of the front of the main frame, a connecting frame fixedly connected to one end of the front of the telescopic folding isolation frame-shaped box, a circuit breaker body sleeved at the middle of the front of the main frame, a sealing slide frame slidably connected to the inner side of the connecting frame, a metal sealing strip-shaped cover fixedly connected to one top end of the sealing slide frame, an acrylic transparent plate fixedly connected to the inner side of the sealing slide frame, a magnetic frame fixedly connected to one top end of the connecting frame, and a bolt provided at one top end of the main frame.

[0006] As a further embodiment of this utility model: a frame-shaped sealing elastic corner patch is fixedly connected to the other end of the front of the main frame, and a frame-shaped sealing elastic corner patch is fixedly connected to one end of the back of the main frame.

[0007] As a further improvement of this utility model: a mounting ear block is fixedly connected to one end of the side of the main frame, and a mounting hole is formed at the middle of the mounting ear block.

[0008] As a further improvement of this utility model: the bottom of the metal sealing strip cover is provided with a frame-shaped groove for inserting a magnetic frame, and the telescopic folding isolation frame box is made of rubber material.

[0009] As a further improvement of this utility model: the other end of the bolt passes through the main frame and is threadedly connected to the circuit breaker body; the bolts are provided in multiple sets and are symmetrically arranged at the top and bottom of the main frame.

[0010] As a further improvement of this utility model: multiple sets of mounting ear blocks and mounting holes are provided, and multiple sets of mounting ear blocks are symmetrically arranged on both sides of the main frame.

[0011] As a further improvement of this utility model, a groove for sealing the sliding frame is provided on the inner side of the connecting frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this utility model, the main frame serves as the basic support. Its front-facing telescopic folding isolation frame (made of rubber, telescopic and foldable) and connecting frame provide an isolated environment for the circuit breaker body, combining flexibility and insulation for convenient operation. The sealing slide frame achieves mobility and serves as an observation window through a metal sealing strip cover and an acrylic transparent plate. A magnetic frame is inserted into the groove of the cover to fix the sealing slide frame, enhancing sealing and stability and preventing interference. Bolts secure the circuit breaker body for easy disassembly and installation, preventing displacement. Frame-shaped sealing elastic corner patches one and two fill gaps, providing a sealing and buffering effect, preventing dust, moisture, and impact. Mounting ears and mounting holes are used to install the structure on a wall or equipment. This isolation structure isolates the circuit breaker body from the outside world, ensuring normal operation. During operation and maintenance, the slide frame can be slid, and the frame box can be deformed, ensuring operational safety and structural stability. Considering multiple performance aspects, this design effectively protects and facilitates the operation of the circuit breaker. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the circuit breaker body of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the frame-shaped sealing elastic corner patch of this utility model;

[0017] Figure 4 This is a schematic diagram of the telescopic folding isolation frame box in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the metal sealing strip cover in this utility model.

[0019] In the diagram: 1. Main frame; 2. Telescopic folding isolation frame box; 3. Connecting frame; 4. Circuit breaker body; 5. Sealing slide frame; 6. Metal sealing strip cover; 7. Acrylic transparent plate; 8. Magnetic frame; 9. Bolt; 10. Frame-shaped sealing elastic corner patch one; 11. Frame-shaped sealing elastic corner patch two; 12. Mounting lug; 13. Mounting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0022] Reference Figures 1 to 5In this embodiment of the utility model, an isolation structure for a circuit breaker includes: a main frame 1, serving as the basic support component of the entire isolation structure; a telescopic folding isolation frame box 2 is fixedly connected to one end of the front of the main frame 1, enabling telescopic and folding, thus meeting the operating space requirements while ensuring the flexibility and insulation of the isolation structure; a connecting frame 3 is fixedly connected to one end of the front of the telescopic folding isolation frame box 2; a circuit breaker body 4 is sleeved at the middle of the front of the main frame 1; a sealing slide frame 5 is slidably connected to the inner side of the connecting frame 3; a metal sealing strip cover 6 is fixedly connected to one end of the top of the sealing slide frame 5; an acrylic transparent plate 7 is fixedly connected to the inner side of the sealing slide frame 5; and a magnetic frame 8 is fixedly connected to one end of the top of the connecting frame 3. Through the metal sealing strip cover 6 at the top and the acrylic transparent plate 7 on the inner side, the sealing slide frame 5 achieves partial mobility of the isolation structure and provides a transparent window for observing the operating status of the circuit breaker. A bolt 9 is provided at one end of the top of the main frame 1. The bolt 9 firmly fixes the circuit breaker body 4 to the main frame 1, ensuring that the circuit breaker will not be displaced during operation and is easy to disassemble and install. The bottom of the metal sealing strip cover 6 is provided with a frame-shaped groove for the magnetic frame 8 to be inserted. The telescopic folding isolation frame box 2 is made of rubber material. The other end of the bolt 9 passes through the main frame 1 and is threaded to the circuit breaker body 4. There are multiple sets of bolts 9, which are symmetrically arranged at the top and bottom of the main frame 1. A sliding groove for sealing the sliding frame 5 is provided on the inner side of the connecting frame 3.

[0023] Reference Figure 2 and Figure 3 A frame-shaped sealing elastic corner patch 10 is fixedly connected to the other end of the front of the main frame 1, and a frame-shaped sealing elastic corner patch 21 is fixedly connected to one end of the back of the main frame 1. The frame-shaped sealing elastic corner patch 10 and the frame-shaped sealing elastic corner patch 211 can fill the gap when the main frame 1 contacts the mounting surface of the circuit breaker body 4, and play a sealing and buffering role.

[0024] Reference Figure 1 The main frame 1 has a mounting lug 12 fixedly connected to one side end. The mounting lug 12 has a mounting hole 13 starting from the middle. There are multiple sets of mounting lugs 12 and mounting holes 13. Multiple sets of mounting lugs 12 are symmetrically arranged on both sides of the main frame 1. The mounting lugs 12 and the mounting holes 13 on them are then installed on the wall or equipment with the entire structure.

[0025] The working principle of this utility model is as follows: The isolation structure of the circuit breaker is based on the main frame 1, providing a stable structural foundation for the entire device. The main frame 1 provides an isolation environment for the circuit breaker body 4 through components such as the telescopic folding isolation frame box 2 and the connecting frame 3 at one end of its front side. The telescopic folding isolation frame box 2 is made of rubber and can be telescopically extended and folded, ensuring the flexibility and insulation of the isolation structure while meeting the operating space requirements. When the circuit breaker needs to be operated, its deformable characteristics provide operational convenience. The sealing slide frame 5, through the metal sealing strip cover 6 on the top and the acrylic transparent plate 7 on the inner side, not only realizes the mobility of part of the isolation structure, but also provides a transparent window for observing the operating status of the circuit breaker. The magnetic frame 8 is inserted into the frame groove of the metal sealing strip cover 6, using magnetism to ensure the firm fixation of the sealing slide frame 5, enhancing the sealing effect and structural stability, and preventing external interference. Bolts 9 secure the circuit breaker body. 4. Firmly fixed to the main frame 1, ensuring that the circuit breaker will not shift during operation and facilitating disassembly and installation; the frame-shaped sealing elastic corner patch 10 and frame-shaped sealing elastic corner patch 11 can fill the gap when the main frame 1 and the mounting surface of the circuit breaker body 4 come into contact, playing a sealing and buffering role, preventing dust and moisture from entering, and buffering external impact forces; the mounting lug 12 and its mounting hole 13 allow the entire structure to be installed on the wall or equipment; this isolation structure isolates the circuit breaker body 4 from the outside world, ensuring its normal operation. When maintenance or operation of the circuit breaker is required, it can be operated by sliding the sealing slide frame 5, telescopically folding the isolation frame box 2, etc., which facilitates the operation of the operator, while ensuring the safety of the operation process and the stability of the isolation structure. This isolation structure comprehensively considers the performance of isolation, sealing, observation, installation convenience and impact resistance, so as to achieve the purpose of effective protection of the circuit breaker and convenient operation.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An isolation structure for a circuit breaker, characterized by, include: The main frame (1) has a telescopic folding isolation box (2) fixedly connected to one end of its front side. The telescopic folding isolation box (2) has a connecting frame (3) fixedly connected to one end of its front side. The main frame (1) has a circuit breaker body (4) sleeved in the middle of its front side. The connecting frame (3) has a sealing slide frame (5) slidably connected to its inner side. The sealing slide frame (5) has a metal sealing strip cover (6) fixedly connected to one end of its top side. The sealing slide frame (5) has an acrylic transparent plate (7) fixedly connected to its inner side. The connecting frame (3) has a magnetic frame (8) fixedly connected to one end of its top side. The main frame (1) has a bolt (9) at one end of its top side.

2. The isolation structure for a circuit breaker according to claim 1, wherein The main frame (1) has a frame-shaped sealing elastic corner patch one (10) fixedly connected to the other end of the front side, and a frame-shaped sealing elastic corner patch two (11) fixedly connected to one end of the back side.

3. The isolation structure for a circuit breaker according to claim 1, characterized in that, The main frame (1) has a mounting ear block (12) fixedly connected to one side end, and the mounting ear block (12) has a mounting hole (13) starting from the middle.

4. The isolation structure for a circuit breaker according to claim 1, characterized in that, The bottom of the metal sealing strip cover (6) is provided with a frame-shaped groove for inserting the magnetic frame (8), and the telescopic folding isolation frame box (2) is made of rubber material.

5. An isolation structure for a circuit breaker according to claim 1, characterized in that, The other end of the bolt (9) passes through the main frame (1) and is threaded to the circuit breaker body (4). There are multiple sets of the bolts (9), which are symmetrically arranged at the top and bottom of the main frame (1).

6. An isolation structure for a circuit breaker according to claim 3, characterized in that, The mounting ear block (12) and the mounting hole (13) are provided in multiple sets, and the multiple sets of mounting ear blocks (12) are symmetrically arranged on both sides of the main frame (1).

7. An isolation structure for a circuit breaker according to claim 1, characterized in that, The inner side of the connecting frame (3) is provided with a groove for the sliding of the sealing slide (5).