Vacuum circuit breaker with good safety

Abstract

The utility model provides a vacuum circuit breaker with good safety, which comprises a vacuum circuit breaker body and a plurality of magnetism isolating plates detachably arranged on the vacuum circuit breaker body, the vacuum circuit breaker body further comprises a base, and a plurality of solid-sealed polar poles are transversely arranged at the top of the base at equal intervals. Mounting seats are arranged at the positions, between every two adjacent solid-sealed polar poles, of the top of the base, through grooves are formed in the top end faces of the mounting seats, a plurality of clamping rods are arranged between the two inner side walls of the through grooves, mounting plates are arranged at the bottoms of the magnetism isolating plates, a plurality of arc buckles are arranged on the bottom end faces of the mounting plates, and the arc buckles are connected with the clamping rods in a clamped mode. According to the utility model, the magnetism isolating plates are arranged between the adjacent solid-sealed polar poles, so that the phenomenon of mutual interference of electric fields between the solid-sealed polar poles can be effectively reduced, and the safety is improved; and the magnetism isolating plate adopts a detachable structure, so that the magnetism isolating plate can be detached when the solid-sealed polar pole is detached and maintained, and the interference influence on the detachment and maintenance of the solid-sealed polar pole is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum circuit breakers, in particular to a vacuum circuit breaker with good safety. Background Art

[0002] A vacuum circuit breaker is a circuit breaker that uses a vacuum state as an arc extinguishing and insulation. It is mainly used in 10-35kV power systems, can be operated frequently, and can continuously break the rated current for more than 10,000 times, and can even break dozens or even hundreds of times continuously under the rated short-circuit breaking current. Vacuum circuit breakers are often used in industrial and mining enterprises, power plants, and substations as protection and control of electrical equipment. Its basic structure includes a vacuum interrupter (vacuum switch tube), an insulating bracket, and an operating mechanism. The advantages of vacuum circuit breakers are small size, light weight, suitable for frequent operation, and arc extinguishing without maintenance, so they are more popular in distribution networks.

[0003] When the vacuum circuit breaker is in operation, an electric field exists between the sealed poles, which may cause mutual interference and may easily lead to safety hazards. For example, Chinese Patent Publication No. CN217822548U discloses a vacuum circuit breaker, including a side-mounted vacuum circuit breaker, which has a magnetic isolation plate, and the magnetic isolation plates are arranged one by one between adjacent poles of the side-mounted vacuum circuit breaker; a rope-lifting vibration-damping base is arranged at the bottom of the side-mounted vacuum circuit breaker, and the rope-lifting vibration-damping base is used to adjust the installation height of the side-mounted vacuum circuit breaker and to provide vibration reduction protection for the side-mounted vacuum circuit breaker. The vacuum circuit breaker provided by the utility model effectively reduces the influence of the electric field and improves the convenience of installation.

[0004] However, according to the specification attached to the above patent document Figure 1 —2 It can be seen that the magnetic isolation plate is directly fixed between the poles on the side-mounted vacuum circuit breaker. When the poles need to be disassembled for maintenance, this structure will interfere with the maintenance because the magnetic isolation plate cannot be disassembled. Utility Model Content

[0005] The utility model provides a vacuum circuit breaker with good safety to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A vacuum circuit breaker with good safety comprises a vacuum circuit breaker body and a plurality of detachable magnetic isolation plates arranged on the vacuum circuit breaker body, the vacuum circuit breaker body also comprising a base, a plurality of sealed poles are arranged at equal intervals on the top of the base in a horizontal direction, a mounting seat is arranged on the top of the base between two adjacent sealed poles, a through groove is formed on the top surface of the plurality of mounting seats, a plurality of clamping rods are arranged between the two inner side walls of the through groove, a mounting plate is arranged on the bottom of the plurality of magnetic isolation plates, a plurality of arc buckles are arranged on the bottom end surface of the mounting plate, and the plurality of arc buckles are clamped with the plurality of clamping rods respectively.

[0008] Preferably, a plurality of support plates are provided on both sides of the connection between the magnetic isolation plate and the mounting plate.

[0009] Preferably, the plurality of support plates are all triangular structures.

[0010] Preferably, an operating mechanism is provided on one side of the base.

[0011] Beneficial Effects

[0012] The above one or more technical solutions in a vacuum circuit breaker with good safety provided by the embodiment of the utility model have at least one of the following technical effects:

[0013] Through the above technical scheme, by providing a magnetic isolation plate between two adjacent sealed poles, the mutual interference of the electric fields between the sealed poles can be effectively reduced, thereby improving the safety of the use of the vacuum circuit breaker; and the magnetic isolation plate adopts a detachable structure, so that when the sealed pole is disassembled and repaired, the magnetic isolation plate can be removed to avoid interference with the disassembly and maintenance of the sealed pole; the utility model has a simple structure and is easy to install and disassemble, which can not only avoid the mutual interference of the electric fields between the sealed poles, but also avoid the problem of interference with the disassembly and maintenance of the sealed pole due to the inability to remove the magnetic isolation plate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a schematic diagram of the side cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the magnetic isolation plate of the utility model;

[0017] Figure 4 This is a schematic diagram of the split structure of the utility model;

[0018] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0019] 1. Vacuum circuit breaker body; 2. Magnetic isolation plate; 3. Base; 4. Sealed pole; 5. Mounting seat; 6. Through slot; 7. Connecting rod; 8. Mounting plate; 9. Arc buckle; 10. Support plate; 11. Operating mechanism. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-4 As shown, it is a structural schematic diagram of a vacuum circuit breaker with good safety in a preferred embodiment of the utility model;

[0024] In this embodiment, a vacuum circuit breaker body 1 is included, and a plurality of magnetic isolation plates 2 detachably arranged on the vacuum circuit breaker body 1, wherein the magnetic isolation plates 2 are made of PBT flame-retardant plastic material in one piece, and the vacuum circuit breaker body 1 also includes a base 3, wherein a plurality of solid-sealed poles 4 are arranged at equal intervals on the top of the base 3, and a mounting seat 5 is arranged between two adjacent solid-sealed poles 4 on the top of the base 3, and a through groove 6 is opened on the top surface of the plurality of mounting seats 5, and a through groove 6 is formed between the two inner side walls of the through groove 6. A number of clamping rods 7 are arranged at equal intervals, and the clamping rods 7 are cylindrical structures. A mounting plate 8 is integrally connected to the bottom of the number of magnetic isolation plates 2. A number of arc buckles 9 are arranged at equal intervals on the bottom end surface of the mounting plate 8. The arc buckles 9 are clamped with the number of clamping rods 7 respectively. The openings of the arc buckles 9 are rounded to make them more smoothly and smoothly clamped on the clamping rods 7. The detachable connection of the magnetic isolation plate 2 is realized through this structure, and the installation and disassembly are convenient through the clamping connection.

[0025] In this embodiment, a plurality of support plates 10 are provided on both sides of the connection between the magnetic isolation plate 2 and the mounting plate 8 . The support plates 10 are arranged at equal intervals, and the support plates 10 enhance the stability of the magnetic isolation plate 2 .

[0026] In this embodiment, the plurality of support plates 10 are all triangular structures. The triangular structure is more stable, thereby improving the stability of the support plates 10 .

[0027] In this embodiment, an operating mechanism 11 is provided on one side of the base 3, and the vacuum circuit breaker body 1 is operated by the operating mechanism 11. Since the operating mechanism 11 is well known to those skilled in the art, it will not be described in detail.

[0028] The utility model provides a vacuum circuit breaker with good safety. Its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0029] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0030] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A vacuum circuit breaker with good safety, comprising a vacuum circuit breaker body (1), and a plurality of magnetic isolation plates (2) detachably arranged on the vacuum circuit breaker body (1), characterized in that: The vacuum circuit breaker body (1) also includes a base (3), a plurality of sealed poles (4) are arranged on the top of the base (3) at equal intervals in the horizontal direction, a mounting seat (5) is arranged on the top of the base (3) between two adjacent sealed poles (4), a plurality of the mounting seats (5) are provided with through grooves (6) on the top surfaces, a plurality of clamping rods (7) are arranged between the two inner side walls of the through grooves (6), a plurality of the magnetic isolation plates (2) are provided with mounting plates (8) at the bottom, a plurality of arc buckles (9) are arranged on the bottom end surfaces of the mounting plates (8), and the plurality of the arc buckles (9) are respectively clamped with the plurality of the clamping rods (7).

2. A vacuum circuit breaker with good safety according to claim 1, characterized in that: A plurality of support plates (10) are provided on both sides of the connection between the magnetic isolation plate (2) and the mounting plate (8).

3. A vacuum circuit breaker with good safety according to claim 2, characterized in that: The plurality of support plates (10) are all triangular structures.

4. A vacuum circuit breaker with good safety according to claim 1, characterized in that: An operating mechanism (11) is provided on one side of the base (3).

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