A high-voltage vacuum power distribution device

Abstract

The utility model discloses a high -tension vacuum power distribution unit that connection is more stable, and has the arc separation function. Adopted technical scheme includes: vacuum high -tension circuit breaker body, the vacuum high -tension circuit breaker body includes support, sets up the upper conductive pole of the support front end top, sets up the lower conductive pole of the support front end below and is connected in the vacuum switch tube between the upper conductive pole and lower conductive pole, the vacuum switch tube is equipped with the insulating frame outward, the upper outgoing line row is connected with the upper conductive pole through the upper end of vacuum switch tube, and the both ends of the upper outgoing line row are fixed in the upper boss of the inner wall of the insulating frame through the screw rod, the lower end of vacuum switch tube is connected with the lower conductive pole through the soft connection conductive row.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage electrical equipment, and in particular relates to a high-voltage vacuum power distribution device. Background Technology

[0002] In underground coal mine power supply systems, safe and reliable power distribution is a key element in ensuring normal mine production and the safety of personnel. Traditional underground high-voltage power distribution devices in coal mines have the structure shown in Chinese utility model patent No. "201220211476.6" entitled "A High-Voltage Power Distribution Device." This includes: a main housing, a high-voltage circuit breaker body housed within the main housing and movable via a chassis, and housing covers and junction boxes located on both sides of the main housing. The high-voltage circuit breaker has an upper conductive rod for three-phase input and a lower conductive rod for three-phase output at its front end. A vacuum switch tube connects between the upper and lower conductive rods. A stationary contact assembly that cooperates with the conductive rods is located on one side of the main housing. However, the upper and lower conductive rods are directly connected to the two ends of the vacuum switch tube, resulting in poor stability and the lack of arc-blocking functionality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-voltage vacuum power distribution device with more stable connection and arc isolation function.

[0004] To solve the above problems, the technical solution adopted by this utility model includes: a vacuum high-voltage circuit breaker body, the vacuum high-voltage circuit breaker body including a bracket, an upper conductive rod disposed above the front end of the bracket, a lower conductive rod disposed below the front end of the bracket, and a vacuum switch tube connected between the upper conductive rod and the lower conductive rod. An insulating frame is provided outside the vacuum switch tube. The upper end of the vacuum switch tube is connected to the upper conductive rod through an upper lead-out bar, and both ends of the upper lead-out bar are fixed to the upper boss on the inner wall of the insulating frame by screws. The lower end of the vacuum switch tube is connected to the lower conductive rod through a flexible conductive bar. The rear end of the lower conductive rod is connected to a lower lead-out bar fixing plate through screws, and both ends of the lower lead-out bar fixing plate are fixed to the lower boss on the inner wall of the insulating frame by screws.

[0005] An insulating support is provided between the upper cable outlet and the lower cable outlet fixing plate, and it is fixed by a through screw.

[0006] The lower end of the vacuum switch tube is connected to the push rod via an insulator, and the push rod is connected to the moving iron core via a pin.

[0007] The push rod is provided with a spring and a spring seat in sequence. The upper end of the spring abuts against the insulator, and the lower end of the spring seat abuts against the moving iron core.

[0008] The inner wall of the insulating frame is provided with a set of reinforcing ribs.

[0009] The upper conductive rod is equipped with a current transformer via a clamping nut.

[0010] The bracket has a bottom frame, and a set of bearings is provided on both sides of the bottom frame.

[0011] The advantages of this high-voltage vacuum power distribution device are as follows: By setting an insulating frame outside the vacuum switch tube, the upper end of the vacuum switch tube is connected to the upper conductive rod through the upper outgoing line busbar, and the two ends of the upper outgoing line busbar are fixed to the upper protrusion on the inner wall of the insulating frame with screws. Then, the lower end of the vacuum switch tube is connected to the lower conductive rod through the flexible connecting conductive busbar. Then, the rear end of the lower conductive rod is connected to the lower outgoing line busbar fixing plate through screws. Finally, the two ends of the lower outgoing line busbar fixing plate are fixed to the lower protrusion on the inner wall of the insulating frame with screws. This makes the connection between the upper conductive rod, the lower conductive rod and the vacuum switch tube more stable. At the same time, the insulating frame also plays an arc-isolating role.

[0012] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the high-voltage vacuum power distribution device of this utility model;

[0014] Figure 2 This is a cross-sectional view of the high-voltage vacuum power distribution device of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the insulating frame of this utility model;

[0016] Figure 4 This is a schematic diagram showing the connection between the upper conductive rod, the lower conductive rod, and the vacuum switch tube of this utility model. Detailed Implementation

[0017] Reference Figure 1-4As shown, the high-voltage vacuum power distribution device of this utility model includes a vacuum high-voltage circuit breaker body 1. The vacuum high-voltage circuit breaker body 1 includes a bracket 2, an upper conductive rod 3 located above the front end of the bracket 2, a lower conductive rod 4 located below the front end of the bracket 2, and a vacuum switch tube 5 connected between the upper conductive rod 3 and the lower conductive rod 4. An insulating frame 6 is provided outside the vacuum switch tube 5. The upper end of the vacuum switch tube 5 is connected to the upper conductive rod 3 through an upper cable outlet 7. The upper cable outlet 7 is fixed to the upper end of the vacuum switch tube 5 by screws. The two ends of the upper cable outlet 7 are fixed to the upper protrusions 9 on the inner wall of the insulating frame 6 by screws 8. The lower end of the vacuum switch tube 5 is connected to the lower conductive rod 4 through a flexible conductive busbar 10. The rear end of the lower conductive rod 4 is connected to a lower cable outlet fixing plate 11 by screws 8, and the two ends of the lower cable outlet fixing plate 11 are fixed to the lower protrusions 12 on the inner wall of the insulating frame 6 by screws 8. The rear end of the flexible conductive busbar 10 is fixed to the lower end of the vacuum switch tube 5 by a screw, and the front end is also fixed to the lower conductive rod 4 by a screw.

[0018] Preferably, an insulating support post 13 is provided between the upper cable outlet 7 and the lower cable outlet fixing plate 11, and is fixed by a through screw 8. This further improves the stability of the connection between the upper cable outlet 7 and the lower cable outlet fixing plate 11.

[0019] Preferably, the lower end of the vacuum switch tube 5 is connected to the push rod 15 via an insulator 14, and the push rod 15 is connected to the moving iron core 17 via a pin 16. A spring 18 and a spring seat 19 are sequentially mounted on the push rod 15. The upper end of the spring 18 abuts against the insulator 14, and the lower end of the spring seat 19 abuts against the moving iron core 17. This further improves the stability of the connection.

[0020] Preferably, the inner wall of the insulating frame 6 is provided with a set of reinforcing ribs 20 to improve the strength of the insulating frame 6.

[0021] Preferably, the upper conductive rod 3 is equipped with a current transformer 22 via a clamping nut 21 to improve the stability of the connection of the current transformer 22.

[0022] Preferably, the bracket 2 has a bottom frame 23, and a set of bearings 24 are provided on both sides of the bottom frame 23. This facilitates the movement of the vacuum high-voltage circuit breaker body 1.

[0023] The foregoing is not intended to limit the present invention in any way. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present invention. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A high-voltage vacuum power distribution device, comprising a vacuum high-voltage circuit breaker body (1), the vacuum high-voltage circuit breaker body (1) comprising a support (2), an upper conducting rod (3) arranged above the front end of the support (2), a lower conducting rod (4) arranged below the front end of the support (2), and a vacuum switch tube (5) connected between the upper conducting rod (3) and the lower conducting rod (4), characterized in that: An insulating frame (6) is provided outside the vacuum switch tube (5). The upper end of the vacuum switch tube (5) is connected to the upper conductive rod (3) through the upper cable outlet (7), and the two ends of the upper cable outlet (7) are fixed to the upper boss (9) on the inner wall of the insulating frame (6) by screws (8). The lower end of the vacuum switch tube (5) is connected to the lower conductive rod (4) through the flexible conductive busbar (10). The rear end of the lower conductive rod (4) is connected to the lower cable outlet fixing plate (11) through the screws (8), and the two ends of the lower cable outlet fixing plate (11) are fixed to the lower boss (12) on the inner wall of the insulating frame (6) by screws (8).

2. The high-voltage vacuum power distribution device according to claim 1, characterized in that: An insulating support (13) is provided between the upper cable outlet (7) and the lower cable outlet fixing plate (11), and is fixed by a through screw (8).

3. The high-voltage vacuum power distribution device according to claim 1, characterized in that: The lower end of the vacuum switch tube (5) is connected to the push rod (15) through the insulator (14), and the push rod (15) is connected to the moving iron core (17) through the pin (16).

4. The high-voltage vacuum power distribution device according to claim 3, characterized in that: The push rod (15) is provided with a spring (18) and a spring seat (19) in sequence. The upper end of the spring (18) abuts against the insulator (14), and the lower end of the spring seat (19) abuts against the moving iron core (17).

5. The high-voltage vacuum power distribution device according to claim 1, characterized in that: The inner wall of the insulating frame (6) is provided with a set of reinforcing ribs (20).

6. The high-voltage vacuum power distribution device according to claim 1, characterized in that: The upper conductive rod (3) is equipped with a current transformer (22) via a clamping nut (21).

7. The high-voltage vacuum power distribution device according to claim 1, characterized in that: The bracket (2) has a bottom frame (23) at the bottom, and a set of bearings (24) are provided on both sides of the bottom frame (23).

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