35kV wind power circuit breaker switch

Abstract

The utility model discloses a 35kV wind power circuit breaker switch, which comprises two insulating support plates and three groups of arc extinguishing assemblies arranged between the two insulating support plates, the opposite surfaces of the two insulating support plates are fixedly connected with the same support frame, the inner wall of the support frame is rotatably connected with a support rod, the bottom end of the support rod is rotatably connected with a connecting plate, and the connecting plate is fixedly connected with the two insulating support plates. Insulation pull rods are arranged on the opposite faces of the two connecting plates, the inner walls of the three supporting rods are rotationally connected with the same main pull plate, and the main pull plate moves to drive the insulation pull rods to move up and down. According to the utility model, the main pull plate moves to drive the three support rods to rotate with the fixed shaft as the axis, so that the connecting plate is driven to move, the insulating pull rod is driven to vertically move up and down under the cooperation of the guide block, and switching-on and switching-off are realized through the insulating pull rod. And switching on and switching off can meet the requirement of accurate control by adopting a connecting rod form.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breakers, and in particular to a 35kV wind power circuit breaker switch. Background Art

[0002] 35kV wind power circuit breaker switch is a high voltage circuit breaker switch used in wind farms, with an operating voltage of 35 kilovolts (kV). It is usually installed between wind turbines and main substations to control and protect the power grid.

[0003] A Chinese patent with publication number CN 111653458 A discloses a circuit breaker body and a circuit breaker, which uses a first fixing member to fix a copper bar support plate and a vacuum arc chamber, while making a conductive boss at a static end of the vacuum arc chamber contact with the copper bar of the arc chamber, thereby ensuring that a surface contact is formed between the static end of the vacuum arc chamber and the copper bar of the arc chamber, increasing the contact area while reducing the contact resistance, and the surface contact can ensure that the electrical connection is more reliable. However, the device adopts an insulating hexagonal axis rotation to realize multi-point simultaneous opening and closing. If a circuit breaker switch used in a wind power generation system needs to be remotely controlled, system monitored or automatically operated, the circuit breaker switch needs to communicate and coordinate accurately with other equipment or monitoring systems. The transmission structure using the above method cannot meet the requirements of accurate control. Therefore, a 35kV wind power circuit breaker switch is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a 35kV wind power circuit breaker switch to solve the problems raised in the above background technology.

[0005] The present application embodiment adopts the following technical solutions:

[0006] A 35kV wind power circuit breaker switch comprises two insulating support plates and three groups of arc extinguishing components arranged between the two insulating support plates, the opposite surfaces of the two insulating support plates are fixedly connected to the same support frame, the inner wall of the support frame is rotatably connected to a support rod, the bottom end of the support rod is rotatably connected to a connecting plate, the opposite surfaces of the two connecting plates are provided with insulating pull rods, the inner walls of the three support rods are rotatably connected to the same main pull plate, and the movement of the main pull plate drives the insulating pull rod to move up and down.

[0007] Preferably, the opposite surfaces of the two connecting plates are rotatably connected with a transmission block, and the top end of the insulating pull rod is fixedly connected to the lower surface of the transmission block.

[0008] Preferably, both the front and rear sides of the transmission block are fixedly connected with a connecting shaft, a rotating hole is opened on the front side of the connecting plate, and the inner wall of the rotating hole is rotatably connected to the surface of the connecting shaft.

[0009] Preferably, the opposite surfaces of the two insulating support plates are fixedly connected with guide blocks, and the surface of the connecting shaft is slidably connected to the inner wall of the guide block.

[0010] Preferably, a fixed shaft is fixedly connected to the inner wall of the support frame, the support rod is rotatably connected to the surface of the fixed shaft, and an avoidance hole for the movement of the support rod is opened on the inner bottom wall of the support frame.

[0011] Preferably, the front and back sides of the support rod are fixedly connected with an extension shaft, and the connecting plate is rotatably connected to the surface of the extension shaft.

[0012] Preferably, the front and back sides of the main pull plate are fixedly connected with a connecting shaft, and the other end of the connecting shaft is rotatably connected to the inner wall of the support rod.

[0013] Preferably, the arc extinguishing assembly includes a fixed bracket and a bubble positioning plate fixedly connected to the opposite surfaces of two insulating support plates, a vacuum arc extinguishing chamber is installed between the fixed bracket and the bubble positioning plate, a static contact seat is provided on the fixed bracket, a soft connection is provided at the top of the vacuum arc extinguishing chamber, the bottom end of the insulating pull rod is connected to the vacuum arc extinguishing chamber, and the bottom end of the insulating pull rod is connected to the vacuum arc extinguishing chamber.

[0014] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0015] In the utility model, the movement of the main pull plate drives the three support rods to rotate around the fixed axis, thereby driving the connecting plate to move, and then driving the insulating pull rod to move vertically up and down with the cooperation of the guide block. The insulating pull rod is used to achieve closing and opening of the switch. Compared with the existing technology, the use of a connecting rod to achieve opening and closing of the switch can meet the requirements of precise control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 : A three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is: a partial structural schematic diagram of the utility model;

[0019] Figure 3 : A front view structural diagram of the utility model in a closed state;

[0020] Figure 4 : A front view structural diagram of the utility model in the open state;

[0021] Figure 5: A side structural schematic diagram of the utility model.

[0022] In the figure: 1. Insulating support plate; 2. Support frame; 3. Support rod; 4. Fixed shaft; 5. Main pull plate; 6. Connecting shaft; 7. Extension shaft; 8. Connecting plate; 9. Transmission block; 10. Guide block; 11. Insulating pull rod; 12. Flexible connection; 13. Bubble positioning plate; 14. Fixed bracket; 15. Static contact seat; 16. Vacuum arc extinguishing chamber; 17. Connecting shaft. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0024] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0025] See also Figure 1-5 , this utility model provides a 35kV wind power circuit breaker switch technical solution:

[0026] A 35kV wind power circuit breaker switch comprises two insulating support plates 1 and three groups of arc extinguishing components arranged between the two insulating support plates 1, the opposite surfaces of the two insulating support plates 1 are fixedly connected to the same support frame 2, the inner wall of the support frame 2 is rotatably connected to a support rod 3, the bottom end of the support rod 3 is rotatably connected to a connecting plate 8, the opposite surfaces of the two connecting plates 8 are provided with insulating pull rods 11, the inner walls of the three support rods 3 are rotatably connected to the same main pull plate 5, and the movement of the main pull plate 5 drives the insulating pull rod 11 to move up and down.

[0027] The opposite surfaces of the two connecting plates 8 are rotatably connected with a transmission block 9 , and the top end of the insulating pull rod 11 is fixedly connected to the lower surface of the transmission block 9 .

[0028] Specifically, the movement of the main pull plate 5 drives the three support rods 3 to rotate around the fixed axis 4, thereby driving the connecting plate 8 to move, and then driving the insulating pull rod 11 to move vertically up and down with the cooperation of the guide block 10. The insulating pull rod 11 is used to achieve closing and opening of the switch. Compared with the existing technology, the use of a connecting rod to achieve opening and closing of the switch can meet the requirements of precise control.

[0029] The front and rear sides of the transmission block 9 are fixedly connected with a connecting shaft 17, the front side of the connecting plate 8 is provided with a rotating hole, and the inner wall of the rotating hole is rotatably connected to the surface of the connecting shaft 17, and the connecting shaft 17 is provided to realize the rotational connection between the connecting plate 8 and the transmission block 9.

[0030] The opposite surfaces of the two insulating support plates 1 are fixedly connected with guide blocks 10, and the surface of the connecting shaft 17 is slidably connected to the inner wall of the guide block 10. The cooperation between the guide block 10 and the connecting shaft 17 ensures that the insulating pull rod 11 only moves up and down in the vertical direction.

[0031] The inner wall of the support frame 2 is fixedly connected with a fixed shaft 4, the support rod 3 is rotatably connected to the surface of the fixed shaft 4, and the inner bottom wall of the support frame 2 is provided with an avoidance hole for the movement of the support rod 3. By setting the fixed shaft 4, the rotational connection between the support rod 3 and the support frame 2 is realized.

[0032] The front and back sides of the support rod 3 are fixedly connected with an extension shaft 7 , and the connecting plate 8 is rotatably connected to the surface of the extension shaft 7 . The connecting plate 8 and the support rod 3 are rotatably connected by setting the extension shaft 7 .

[0033] The front and back sides of the main pull plate 5 are fixedly connected with a connecting shaft 6, and the other end of the connecting shaft 6 is rotatably connected to the inner wall of the support rod 3. The main pull plate 5 and the support rod 3 are rotatably connected by providing the connecting shaft 6.

[0034] The arc extinguishing assembly includes a fixed bracket 14 and a bubble positioning plate 13 fixedly connected to the opposite surfaces of the two insulating support plates 1, a vacuum arc extinguishing chamber 16 is installed between the fixed bracket 14 and the bubble positioning plate 13, a static contact seat 15 is arranged on the fixed bracket 14, a soft connection 12 is arranged at the top of the vacuum arc extinguishing chamber 16, and the bottom end of the insulating pull rod 11 is connected to the vacuum arc extinguishing chamber 16.

[0035] Working principle: During the use of the 35kV wind power circuit breaker switch, when it is necessary to close the circuit, the main pull plate 5 moves to the left and drives the support rod 3 to rotate 18° clockwise, the support rod 3 drives the connecting plate 8 and the transmission block 9 installed in the middle of the connecting plate 8 to transmit downward, the transmission block 9 drives the insulating pull rod 11 installed on the vacuum arc chamber 16 to apply pressure downward, so that the moving contact in the vacuum arc chamber 16 contacts the static contact seat 15 to complete the entire closing work; when it is necessary to open the circuit, the main connecting plate 8 transmits to the right and drives the support rod 3 to rotate 18° counterclockwise, the support rod 3 drives the connecting plate 8 and the transmission block 9 installed in the middle of the connecting plate 8 to transmit upward, the transmission belt drives the insulating pull rod 11 installed on the vacuum arc chamber 16 to release pressure upward, so that the moving contact in the vacuum arc chamber 16 is separated from the static contact seat 15 to complete the entire opening work. Compared with the existing technology, the use of connecting rods to achieve opening and closing can meet the needs of precise control.

[0036] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0037] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A 35kV wind power circuit breaker switch, comprising two insulating support plates (1) and three sets of arc extinguishing components arranged between the two insulating support plates (1), characterized in that: The opposing surfaces of the two insulating support plates (1) are fixedly connected to the same support frame (2); the inner wall of the support frame (2) is rotatably connected to a support rod (3); the bottom end of the support rod (3) is rotatably connected to a connecting plate (8); the opposing surfaces of the two connecting plates (8) are provided with insulating pull rods (11); the inner walls of the three support rods (3) are rotatably connected to the same main pull plate (5); the movement of the main pull plate (5) drives the insulating pull rod (11) to move up and down.

2. The 35kV wind power circuit breaker switch according to claim 1 is characterized in that: The opposite surfaces of the two connecting plates (8) are rotatably connected with a transmission block (9), and the top end of the insulating pull rod (11) is fixedly connected to the lower surface of the transmission block (9).

3. The 35kV wind power circuit breaker switch according to claim 2 is characterized in that: The front and rear sides of the transmission block (9) are fixedly connected with a connecting shaft (17), the front side of the connecting plate (8) is provided with a rotating hole, and the inner wall of the rotating hole is rotatably connected to the surface of the connecting shaft (17).

4. The 35kV wind power circuit breaker switch according to claim 3 is characterized in that: The opposing surfaces of the two insulating support plates (1) are fixedly connected with guide blocks (10), and the surface of the connecting shaft (17) is slidably connected to the inner wall of the guide block (10).

5. The 35kV wind power circuit breaker switch according to claim 1, characterized in that: The inner wall of the support frame (2) is fixedly connected with a fixed shaft (4), the support rod (3) is rotatably connected to the surface of the fixed shaft (4), and the inner bottom wall of the support frame (2) is provided with an avoidance hole for the movement of the support rod (3).

6. The 35kV wind power circuit breaker switch according to claim 1, characterized in that: The front and back sides of the support rod (3) are fixedly connected to an extension shaft (7), and the connecting plate (8) is rotatably connected to the surface of the extension shaft (7).

7. The 35kV wind power circuit breaker switch according to claim 1, characterized in that: The front and back sides of the main pull plate (5) are fixedly connected with a connecting shaft (6), and the other end of the connecting shaft (6) is rotatably connected to the inner wall of the support rod (3).

8. The 35kV wind power circuit breaker switch according to claim 1, characterized in that: The arc extinguishing assembly comprises a fixed bracket (14) and a bubble positioning plate (13) fixedly connected to opposite surfaces of two insulating support plates (1), a vacuum arc extinguishing chamber (16) is installed between the fixed bracket (14) and the bubble positioning plate (13), a static contact seat (15) is arranged on the fixed bracket (14), and a soft connection (12) is arranged at the top of the vacuum arc extinguishing chamber (16).

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