Small-size solid-sealed polar pole for miniaturized environment-friendly gas insulated ring main unit

Abstract

The utility model provides a small-size solid-sealed polar pole for a miniaturized environment-friendly gas insulated ring main unit, which comprises a solid-sealed polar pole which is provided with a first electric connection part which is arranged close to a cabinet body and extends out along the direction perpendicular to the central axis of the solid-sealed polar pole; the pole shell is used for fixedly installing the solid-sealed pole, the pole shell is fixedly arranged on the cabinet body, the pole shell is provided with an extension part, the extension part and the first electric connection part are arranged in a spaced mode, and the pole shell is provided with a partition part located between the cabinet body and the first electric connection part. According to the small-size solid-sealed polar pole for the miniaturized environment-friendly gas-insulated ring main unit, the polar pole shell is arranged and can be used for fixedly installing the solid-sealed polar pole, and the partition part is arranged between the extension part of the polar pole shell and the first electric connection part of the solid-sealed polar pole, so that when the distance between the first electric connection part and the cabinet body is small, the solid-sealed polar pole can be fixedly installed. The isolation part is used for isolating the air discharge between the first electric connection part and the cabinet body, so that the adaptability is good and the practicability is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of insulation ring network cabinet, concretely relates to a small size solid seal pole for miniaturized environmental protection gas insulation ring network cabinet. BACKGROUND

[0002] In the prior art, 10-35kV ring network switch equipment is mostly SF6 insulation or arc extinguishing gas-filled switch, which will produce toxic gas pollution after arc extinguishing, and SF6 gas will produce greenhouse effect, so SF6 product needs to be replaced by environmental protection gas ring network cabinet.

[0003] In the prior art, when replacing or upgrading the environmental protection gas ring network cabinet, the size width of the original SF6 ring network cabinet foundation is small, and the size width of the replaced environmental protection gas insulation ring network cabinet is large, so the cabinet size of the environmental protection gas insulation ring network cabinet cannot meet the replacement condition on the original foundation, and the cabinet size needs to be miniaturized, but the size of the cabinet is small, so the existing solid seal pole cannot be installed, and reducing the size of the solid seal pole will cause one of the electric connection ends of the solid seal pole to be close to the cabinet, resulting in air discharge, poor adaptability and poor practicality. SUMMARY

[0004] The utility model embodiment provides a small size solid seal pole for miniaturized environmental protection gas insulation ring network cabinet, which aims to solve the problem that the existing solid seal pole cannot be installed.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a small size solid seal pole for miniaturized environmental protection gas insulation ring network cabinet, which comprises:

[0006] The solid seal pole has a first electric connection part arranged close to the cabinet and extending in the direction perpendicular to the central axis of the solid seal pole;

[0007] The pole shell is fixedly installed on the cabinet, and the pole shell has an extension part and a partition part located between the cabinet and the first electric connection part.

[0008] In a possible implementation manner, the pole shell has a connection cavity with an open end, the open end of the pole shell is connected with the cabinet, and a protruding ring is arranged on the open end of the pole shell, the protruding ring is integrally connected with the pole shell, and is used for preventing the first electric connection part from discharging with the cabinet, and the protruding ring is the partition part.

[0009] In a possible implementation manner, the solid seal pole further comprises:

[0010] A vacuum interrupter is arranged in the connecting cavity;

[0011] An insulating pull rod is arranged in the connecting cavity, one end of the insulating pull rod extends out of the connecting cavity, and the other end of the insulating pull rod is connected with the vacuum interrupter, for operating the switch of the vacuum interrupter;

[0012] An outgoing conductor is electrically connected with the vacuum interrupter at one end and connected with a switch at the other end;

[0013] A connecting conductor is arranged on the connecting end of the insulating pull rod and the vacuum interrupter, and is electrically connected with the vacuum interrupter, the connecting conductor being the first electric connecting part.

[0014] In a possible implementation, the connecting conductor comprises:

[0015] A connecting wire is electrically connected with the connecting end of the insulating pull rod and the vacuum interrupter at one end and connected with the pole shell outside the connecting cavity at the other end;

[0016] A conductive copper rod is connected with the connecting end of the connecting conductor and the pole shell outside and extends outward at the other end of the connecting conductor;

[0017] The side wall of the pole shell is provided with a connecting port for the connecting wire to pass through.

[0018] In a possible implementation, the conductive copper rod is a brass rod.

[0019] In a possible implementation, the pole shell is made of insulating material.

[0020] In a possible implementation, the protruding ring is made of insulating material.

[0021] Compared with the prior art, the pole shell is arranged in the present implementation, and the fixed installation of the solid-sealed pole can be provided, and the partition part is arranged between the extension part of the pole shell and the first electric connecting part of the solid-sealed pole, so that when the distance between the first electric connecting part and the cabinet is relatively small, the gap discharge between the first electric connecting part and the cabinet can be blocked by the partition part, and the adaptability and practicability are good. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 An internal structure schematic diagram of a small-size solid-sealed pole for a small environmental protection gas insulated ring main unit is provided in the present embodiment;

[0023] Explanation of reference signs:

[0024] 10. Solid-sealed pole; 11. Vacuum interrupter; 12. Insulating pull rod; 13. Outgoing conductor; 14. Connecting conductor; 141. Connecting wire; 142. Conductive copper rod; 20. Pole housing; 21. Protruding ring; 22. Connecting cavity; 30. Cabinet. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Please refer to the following: Figure 1 The present invention will now describe the small-sized solidified pole 10 for a miniaturized environmentally friendly gas-insulated ring main unit. The small-sized solidified pole 10 for a miniaturized environmentally friendly gas-insulated ring main unit includes a solidified pole 10 and a pole housing 20. The solidified pole 10 has a first electrical connection portion disposed near the cabinet 30 and extending in a direction perpendicular to the central axis of the solidified pole 10. The pole housing 20 is used for fixed installation of the solidified pole 10 and is fixedly mounted on the cabinet 30. The pole housing 20 has an extension portion spaced apart from the first electrical connection portion and has a partition portion located between the cabinet 30 and the first electrical connection portion.

[0027] The miniaturized environmentally friendly gas-insulated ring main unit 10 provided in this embodiment has a small-sized solidified pole 10. Compared with the prior art, it is provided with a pole shell 20 for fixed installation of the solidified pole 10. A partition is provided between the extension of the pole shell 20 and the first electrical connection part of the solidified pole 10. When the distance between the first electrical connection part and the cabinet 30 is close, the partition can block the air discharge between the first electrical connection part and the cabinet 30. It has good adaptability and practicality.

[0028] In some embodiments, the aforementioned pole housing 20 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The pole housing 20 has a connection cavity 22 with one end open. The open end of the pole housing 20 is connected to the cabinet 30 and a protruding ring 21 is provided on the open end of the pole housing 20. The protruding ring 21 is integrally connected to the pole housing 20 to prevent the first electrical connection part from discharging with the cabinet 30. The protruding ring 21 is a partition part.

[0029] The connecting cavity 22 allows the solid-sealed pole 10 to be installed, and the protruding ring 21 prevents discharge between the first electrical connection part and the cabinet 30. The protruding ring 21 can also be understood as an insulating washer, which can be placed between the first electrical connection part and the cabinet 30.

[0030] In some embodiments, the aforementioned solid-sealing terminal 10 can be adopted as follows: Figure 1 The structure shown. See also Figure 1 The solid-sealed pole 10 also includes: a vacuum interrupter 11, an insulating pull rod 12, an outgoing conductor 13, and a connecting conductor 14. The vacuum interrupter 11 is disposed within the connecting cavity 22. The insulating pull rod 12 is disposed within the connecting cavity 22, with one end extending out of the connecting cavity 22 and the other end connected to the vacuum interrupter 11, used to operate the switch of the vacuum interrupter 11. One end of the outgoing conductor 13 is electrically connected to the vacuum interrupter 11, and the other end is connected to the switch. The connecting conductor 14 is disposed at the connection end between the insulating pull rod 12 and the vacuum interrupter 11, and is electrically connected to the vacuum interrupter 11; the connecting conductor 14 is the first electrical connection part.

[0031] The vacuum interrupter 11 is a core component of a medium- and high-voltage power switch. It is mainly used to quickly extinguish the arc and suppress current after the power supply to the medium- and high-voltage circuit is cut off, preventing accidents and incidents, thanks to the excellent insulation properties of the vacuum inside the tube. The vacuum interrupter 11 is existing technology and will not be described in detail here. The insulating pull rod 12 is a bent pull rod made of anti-electromagnetic interference material. It can be used as a protective pull rod for electrical equipment or as a barrier pull rod. The insulating pull rod 12 is existing technology and will not be described in detail here.

[0032] In some embodiments, the connecting conductor 14 may be as follows: Figure 1 The structure shown. See also Figure 1 The connecting conductor 14 includes a connecting wire 141 and a conductive copper rod 142. One end of the connecting wire 141 is electrically connected to the connection end of the insulating pull rod 12 and the vacuum interrupter 11, and the other end extends out of the connection cavity 22 and connects to the pole housing 20. One end of the conductive copper rod 142 is connected to the connection end of the connecting conductor 14 and the pole housing 20, and the other end of the connecting conductor 14 extends outward.

[0033] The pole housing 20 has a connection port on its side wall for the connecting wire 141 to pass through.

[0034] The connecting wire 141 can be electrically connected to the connecting ends of the insulating pull rod 12 and the vacuum interrupter 11, and conducts current through the connection to the other end of the pole housing 20. The conductive copper rod 142 is a metal product with excellent conductivity. Because the connection between the connecting wire 141 and the conductive copper rod 142 is an exposed connection, a non-discharge situation may occur.

[0035] In some embodiments, the conductive copper rod 142 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The conductive copper rod 142 is a brass rod.

[0036] Brass rods are made of copper and zinc alloys, and their color varies depending on the zinc content. For example, a zinc content of 18%-20% results in a reddish-yellow color, while 20%-30% results in a brownish-yellow color.

[0037] In some embodiments, the aforementioned pole housing 20 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The outer casing of the pole piece 20 is made of insulating material.

[0038] In some embodiments, the aforementioned protruding ring 21 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The prominent ring 21 is made of insulating material.

[0039] Insulating materials are materials used to isolate conductors at different potentials in electrical equipment, allowing current to flow along a specific path. Insulating materials can include insulating varnishes, which are based on polymers and can form insulating films with high insulation resistance and mechanical strength. They can be used to coat motors, electrical windings, etc., providing insulation and protection.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A small-sized solid-sealed pole for a miniaturized, environmentally friendly gas-insulated ring main unit, characterized in that: include: The solid-sealed pole has a first electrical connection portion that is located near the cabinet and extends in a direction perpendicular to the central axis of the solid-sealed pole; The electrode housing is used for the fixed installation of the sealed electrode. The electrode housing is fixed on the cabinet. The electrode housing has an extension portion, which is spaced apart from the first electrical connection portion, and has a partition portion located between the cabinet and the first electrical connection portion.

2. The small-sized solid-sealed pole for miniaturized environmentally friendly gas-insulated ring main unit as described in claim 1, characterized in that, The electrode housing has a connection cavity with one end open. The open end of the electrode housing is connected to the cabinet and has a protruding ring on the open end. The protruding ring is integrally connected to the electrode housing to prevent the first electrical connection part from discharging with the cabinet. The protruding ring is the partition part.

3. The small-sized solid-sealed pole for miniaturized environmentally friendly gas-insulated ring main unit as described in claim 2, characterized in that, The solid-sealed electrode also includes: A vacuum interrupter is disposed within the connecting cavity; An insulating pull rod is disposed in the connecting cavity, one end of the insulating pull rod extends out of the connecting cavity, and the other end of the insulating pull rod is connected to the vacuum interrupter for operating the switch of the vacuum interrupter; One end of the outgoing conductor is electrically connected to the vacuum interrupter, and the other end is connected to a switch; A connecting conductor is disposed on the connection end between the insulating pull rod and the vacuum interrupter, and is electrically connected to the vacuum interrupter; the connecting conductor is the first electrical connection part.

4. The small-sized solid-sealed pole for the miniaturized environmentally friendly gas-insulated ring main unit as described in claim 3, characterized in that, The connecting conductor includes: The connecting wire has one end electrically connected to the connection end of the insulating pull rod and the vacuum interrupter, and the other end extends out of the connecting cavity and connects to the pole housing; A conductive copper rod, one end of which is connected to the terminal of the electrode shell and the connecting wire, and the other end of which extends outward; The side wall of the pole housing is provided with a connection port for the connecting wire to pass through.

5. The small-sized solid-sealed pole for the miniaturized environmentally friendly gas-insulated ring main unit as described in claim 4, characterized in that, The conductive copper rod is a brass rod.

6. The small-sized solid-sealed pole for the miniaturized environmentally friendly gas-insulated ring main unit as described in claim 1, characterized in that, The outer shell of the pole is made of insulating material.

7. The small-sized solid-sealed pole for the miniaturized environmentally friendly gas-insulated ring main unit as described in claim 2, characterized in that, The protruding ring is made of insulating material.

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