Bounce-free high-reliability permanent magnet single-phase railway circuit breaker

Abstract

The invention relates to a bounce-free high-reliability permanent magnet single-phase railway circuit breaker, which belongs to the technical field of circuit breakers for railway traction substations and comprises a permanent magnet mechanism, an insulating pull rod, an arc extinguish chamber, an insulating support column, an upper current-conducting plate, a bounce absorption device and a lower current-conducting plate, a lower current-conducting plate for supporting the arc extinguish chamber is arranged below the arc extinguish chamber, the lower current-conducting plate is connected with an upper current-conducting plate through an insulating support column, and a bounce absorption device is arranged on the upper current-conducting plate. According to the invention, serious defects in the prior art are overcome, bounce parameters are reduced, safe and reliable switching-on and switching-off of equipment are ensured, space and materials are saved, safety and reliability are realized, and by adopting the technology, the part damage probability can be reduced, and space is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit breakers used in railway traction substations, and in particular relates to a non-bounce high-reliability permanent magnet single-phase railway circuit breaker. Background Art

[0002] The single-pole circuit breakers that have appeared in recent years have been successfully applied to power systems with their simple structure, few parts, high reliability, high precision, long service life, environmental protection, and stable electrical signals. At present, the structure of single-pole circuit breakers is developing in a diversified direction, and the disclosure of numerous patent technologies has promoted the continuous improvement of single-pole circuit breaker technology. Although these patent technologies are relatively advanced, they are relatively complicated in the manufacturing process and assembly, especially the key index bounce parameter is too large, resulting in a high number of electrical faults in the operating line during operation, which has become the main crux of the current product. The large design volume wastes raw materials and is cumbersome and wastes labor. At present, the main domestic method is to increase the main circuit conductive structure, enhance the strength and reduce the bounce parameter. The large volume is not conducive to miniaturization, causing unsafe equipment and personnel. Summary of the invention

[0003] In order to solve the above-mentioned problems, the present invention proposes: a bounce-free high-reliability permanent magnet single-phase railway circuit breaker, comprising a permanent magnet mechanism, an insulating pull rod, an arc extinguishing chamber, an insulating support column, an upper conductive plate, a bounce absorption device and a lower conductive plate, the permanent magnet mechanism is connected to the arc extinguishing chamber through the insulating pull rod, a lower conductive plate for supporting the arc extinguishing chamber is arranged under the arc extinguishing chamber, the lower conductive plate is connected to the upper conductive plate through the insulating support column, and the bounce absorption device is arranged on the upper conductive plate.

[0004] Furthermore, the arc extinguishing chamber is arranged between the upper conductive plate and the lower conductive plate and is not subjected to external force.

[0005] Furthermore, the bounce absorbing device is a high-performance disc spring.

[0006] Furthermore, the insulating pull rod is connected to a conductive part of the permanent magnet mechanism.

[0007] Furthermore, the insulating pull rod is connected to a conductive portion of the arc extinguishing chamber.

[0008] Furthermore, the insulating pull rod passes through the lower conductive plate and is connected to the conductive part of the arc extinguishing chamber.

[0009] The beneficial effects of the present invention are as follows: the present invention solves the serious defects of the prior art, reduces the bounce parameters, ensures the safe and reliable disconnection of the equipment, saves space and materials, is safe and reliable, and adopts this technology to reduce the probability of damaged parts and reduce space. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The present invention is a structural schematic diagram of a non-bounce high-reliability permanent magnet single-phase railway circuit breaker.

[0011] 1. Permanent magnet mechanism, 2. Insulating pull rod, 3. Arc extinguishing chamber, 4. Insulating support column, 5. Upper conductive plate, 6. Bounce absorption device, 7. Lower conductive plate. DETAILED DESCRIPTION

[0012] Example 1

[0013] In order to make the technical means adopted by the present invention and the objectives achieved easy to understand, the present invention is further explained below in combination with a specific implementation method. A bounce-free high-reliability permanent magnet single-phase railway circuit breaker includes a permanent magnet mechanism 1, an insulating pull rod 2, an arc extinguishing chamber 3, an insulating support column 4, an upper conductive plate 5, a bounce absorption device 6 and a lower conductive plate 7. The permanent magnet mechanism 1 is connected to the arc extinguishing chamber 3 through the insulating pull rod 2, and a lower conductive plate 7 for supporting the arc extinguishing chamber 3 is arranged below the arc extinguishing chamber 3. The lower conductive plate 7 is connected to the upper conductive plate 5 through the insulating support column 4, and a bounce absorption device 6 is arranged on the upper conductive plate 5.

[0014] The arc extinguishing chamber 3 is arranged between the upper conductive plate 5 and the lower conductive plate 7 and is not subjected to external forces.

[0015] Among them, the bounce absorption device 6 is a high-performance disc spring.

[0016] The insulating pull rod 2 is connected to the conductive part of the permanent magnet mechanism 1 .

[0017] The insulating pull rod 2 is connected to the conductive part of the arc extinguishing chamber 3 .

[0018] The insulating pull rod 2 passes through the lower conductive plate 7 and is connected to the conductive part of the arc extinguishing chamber 3 .

[0019] Example 2

[0020] The object of the present invention is to overcome the above shortcomings and defects and to provide a non-bouncing, high-reliability permanent magnet single-phase railway circuit breaker which is smaller in size, simpler in structure, saves materials, has high reliability and precision, is maintenance-free and easy to operate.

[0021] To achieve the above object, the present invention adopts the following technical solution:

[0022] A non-bounce high-reliability permanent magnet single-phase railway circuit breaker, such as Figure 1 As shown, it includes a permanent magnet mechanism 1, an insulating pull rod 2, an arc extinguishing chamber 3, an insulating support column 4, an upper conductive plate 5, and a bounce absorption device 6.

[0023] The above-mentioned permanent magnet mechanism 1 is installed below the arc extinguishing chamber 3 and connected to the conductive part by the insulating pull rod 2;

[0024] The insulating support column 4 is used to support the arc extinguishing chamber 3 in the middle of the conductive plate without being subjected to external forces;

[0025] The bounce absorption device 6 on the upper conductive plate 5 can reduce the impact of the arc extinguishing chamber 3 when closing the circuit breaker, and reduce the bounce;

[0026] The above-mentioned bounce absorbing device 6 is composed of a high-performance disc spring;

[0027] The present invention solves the serious defects of the prior art, reduces the bounce parameters, ensures the safe and reliable disconnection of the equipment, saves space and materials, is safe and reliable, and adopts this technology to reduce the probability of damaged parts and reduce space.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-bounce high-reliability permanent magnet single-phase railway circuit breaker, characterized in that: The invention comprises a permanent magnet mechanism (1), an insulating pull rod (2), an arc extinguishing chamber (3), an insulating support column (4), an upper conductive plate (5), a bounce absorption device (6) and a lower conductive plate (7); the permanent magnet mechanism (1) is connected to the arc extinguishing chamber (3) via the insulating pull rod (2); a lower conductive plate (7) for supporting the arc extinguishing chamber (3) is arranged below the arc extinguishing chamber (3); the lower conductive plate (7) is connected to the upper conductive plate (5) via the insulating support column (4); and the bounce absorption device (6) is arranged on the upper conductive plate (5).

2. The non-bounce high-reliability permanent magnet single-phase railway circuit breaker according to claim 1 is characterized in that: The arc extinguishing chamber (3) is arranged between the upper conductive plate (5) and the lower conductive plate (7) and is not subject to external forces.

3. The non-bounce high-reliability permanent magnet single-phase railway circuit breaker according to claim 2 is characterized in that: The bounce absorbing device (6) is a high-performance disc spring.

4. The non-bounce high-reliability permanent magnet single-phase railway circuit breaker according to claim 3 is characterized in that: The insulating pull rod (2) is connected to the conductive part of the permanent magnet mechanism (1).

5. The non-bounce high-reliability permanent magnet single-phase railway circuit breaker according to claim 4 is characterized in that: The insulating pull rod (2) is connected to the conductive part of the arc extinguishing chamber (3).

6. The non-bounce high-reliability permanent magnet single-phase railway circuit breaker according to claim 5, characterized in that: The insulating pull rod (2) passes through the lower conductive plate (7) and is connected to the conductive part of the arc extinguishing chamber (3).

Images