Partition knife insulation support assembly and ring main unit

Abstract

The invention provides a knife isolation insulation support assembly and a ring main unit, and relates to the technical field of ring main units. The isolation knife insulation support assembly comprises a conductor, the upper end of the conductor is provided with an isolation knife connecting part, and the lower end of the conductor is provided with a copper rod connecting part; and the support is coated on the surface of the conductor, and the upper end and the lower end of the conductor respectively extend to the outer side of the support. The support wraps the surface of the conductor and is in close fit with the conductor, and the supporting and insulating effects on the conductor are improved. According to the utility model, the plurality of copper bar connecting holes are arranged on the copper bar connecting part at the lower end of the conductor, so that the copper bars can be conveniently installed at different positions of the disconnecting link connecting part, the plurality of copper bars and the connecting point positions of the copper bar connecting part are not overlapped, the insulation distance between the plurality of copper bars is increased, and the installation convenience, visibility and insulation performance of the copper bars are improved. The isolation knife switch connecting part is matched with the isolation knife switch, so that the isolation knife switch is supported.

Description

Technical Field

[0001] This application relates to the field of ring main unit technology, and in particular to a blade insulated support assembly and a ring main unit. Background Technology

[0002] A ring main unit is an electrical device consisting of a metal or non-metal insulated cabinet equipped with power transmission and distribution equipment, or assembled into a modular ring network power supply unit. It has advantages such as small size, simple structure, ease of construction and maintenance, and power supply safety, and is widely used in substations and prefabricated substations in load centers such as urban residential areas, large buildings, and industrial and mining enterprises.

[0003] With the advancement of dual-carbon goals, environmentally friendly ring main units using dry air as the insulation medium are gradually replacing traditional SF6 ring main units. However, the insulation performance of dry air is only 1 / 3 that of SF6, and the specifications require that the three phases A, B, and C be independent of each other. Under these circumstances, with the cabinet's external dimensions remaining unchanged, the problems of insufficient insulation distance between incoming copper rods and between the copper rods and ground in conventional environmentally friendly ring main units, as well as the inconvenience of installation due to the limited air space inside the cabinet, become more prominent, seriously restricting the environmentally friendly replacement and safe and stable operation of the distribution network.

[0004] Therefore, it is necessary to rationally design the insulation supports in environmentally friendly ring main units within limited dimensions, so as to achieve the installation of three-phase copper rods and rotary isolating switches in the smallest possible size, and to improve the relative distance between copper rods and the overall insulation performance of the insulation supports. Summary of the Invention

[0005] Based on this, this application provides a blade-insulating support assembly and a ring main unit, which can provide targeted stimulation and perform precise neuromodulation, while reducing wounds and improving safety.

[0006] The blade insulation support assembly provided in this application includes:

[0007] The conductor has an isolating switch connection at its upper end and a copper rod connection at its lower end. The copper rod connection includes:

[0008] The copper rod connecting part body is located at the lower end of the conductor;

[0009] Multiple copper rod connection holes, with a gap between two adjacent copper rod connection holes, are used to stagger the multiple copper rods to increase the insulation distance between the multiple copper rods;

[0010] A support is a bracket that covers the surface of a conductor, with the upper and lower ends of the conductor extending to the outside of the support, respectively.

[0011] Optionally, the blade insulation support assembly also includes:

[0012] An equalizing cover is fitted over the surface of the conductor and located between the support and the conductor.

[0013] Optionally, the support and conductor are sealed together as one unit.

[0014] Optionally, the support includes:

[0015] The support body covers the surface of the conductor;

[0016] The protrusion is located on the outside of the support body and is used to position the support body.

[0017] Optionally, the isolating switch connection includes:

[0018] The upper end of the conductor of the isolating switch connection body extends to the outside of the support to form the isolating switch connection body;

[0019] The isolating switch connection hole is used to connect the isolating switch. The isolating switch is connected to the isolating switch connection body through the isolating switch connection hole, and the isolating switch can rotate relative to the isolating switch connection body.

[0020] Optionally, at least one of the isolating switch connecting body and the copper rod connecting body is in the shape of a sheet, and multiple isolating switches are clamped in the isolating switch connecting body.

[0021] Optionally, the blade insulation support assembly also includes:

[0022] Fixing plates are installed on both sides of the support to fix the support inside the ring main unit.

[0023] Optionally, the surface at the contact point between the conductor and the support has a rolled pattern.

[0024] Optionally, the blade insulation support assembly also includes:

[0025] A limiting element, connected to the conductor and the support, to limit the relative position between the conductor and the support.

[0026] This application also provides a ring main unit, including the above-mentioned blade insulated support assembly.

[0027] Optionally, there are multiple spacer insulating support assemblies, and multiple spacer insulating support assemblies are connected to multiple copper rods through copper rod connecting parts, and the positions of the multiple copper rods are staggered and do not overlap each other.

[0028] The blade insulation support assembly and the support in the ring main unit provided in this application cover the surface of the conductor, fit tightly with the conductor, and improve the support and insulation effect of the conductor. It also makes the blade insulation support assembly compact and small, thereby reducing its size and facilitating its installation.

[0029] Multiple copper rod connection holes are provided at the lower end of the conductor to facilitate the installation of copper rods at different positions on the isolating switch connection. The connection points of the multiple copper rods and the copper rod connection do not overlap, which increases the insulation distance between the multiple copper rods and improves the installation convenience, visibility and insulation performance of the copper rods.

[0030] The isolating switch is supported by the connection part of the isolating switch. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings, without exceeding the scope of protection claimed by this application.

[0032] Figure 1 This is a schematic diagram of the structure of the blade insulation support assembly according to Embodiment 1 of this application;

[0033] Figure 2 This is a schematic cross-sectional view of the structure of the blade insulation support assembly of Embodiment 1 provided in this application;

[0034] Figure 3 This is a schematic diagram of the connection between the blade insulating support assembly and the copper rod in Embodiment 1 of this application;

[0035] Figure 4 This is a schematic diagram of the structure of the blade insulation support assembly of Embodiment 2 provided in this application;

[0036] Figure 5 This is a schematic diagram of the structure of the isolation switch insulating support assembly with copper rod and isolating switch provided in Embodiment 3 of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Conductor; 11. Isolating switch connection part; 111. Isolating switch connection part body; 112. Isolating switch connection hole; 12. Copper rod connection part; 121. Copper rod connection part body; 122. Copper rod connection hole; 2. Support; 21. Support body; 22. Protrusion; 23. Threaded connection hole; 3. Equalizing cover; 4. Fixing plate; 5. Limiting component; 100. Copper rod; 200. Isolating switch. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a corresponding orientation, or be constructed and operated in a corresponding orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] refer to Figure 1 andFigure 5 The isolating switch support assembly provided in this application includes a conductor 1 and a support 2. The upper end of the conductor 1 has an isolating switch connection portion 11, and the lower end of the conductor 1 has a copper rod connection portion 12. The copper rod connection portion 12 includes a copper rod connection portion body 121 and a plurality of copper rod connection holes 122. The copper rod connection portion body 121 is located at the lower end of the conductor 1, and there is a gap between two adjacent copper rod connection holes 122 to stagger the plurality of copper rods 100, thereby increasing the insulation distance between the plurality of copper rods 100. The support 2 covers the surface of the conductor 1, and the upper and lower ends of the conductor 1 extend to the outside of the support 2, respectively.

[0043] The support 2 covers the surface of the conductor 1, fitting tightly with it to improve support and insulation, and makes the structure of the isolating switch support assembly compact and small, thus reducing its size and facilitating installation. Multiple copper rod connection holes 122 are provided in the copper rod connection portion 12 at the lower end of the conductor 1 to allow the copper rods 100 to be installed at different positions on the isolating switch connection portion 11. The connection points of the multiple copper rods 100 and the copper rod connection portion 12 do not overlap, increasing the insulation distance between the multiple copper rods 100 and improving the installation convenience, visibility, and insulation performance of the copper rods 100. The isolating switch connection portion 11 cooperates with the isolating switch 200 to support the isolating switch 200.

[0044] In some embodiments, the support 2 may be made of epoxy resin material and may be a non-circular casting. The copper rod 100 is connected to the copper rod connecting hole 122 by fastening screws, and the copper rod connecting hole 122 may be a through hole or a threaded hole.

[0045] refer to Figure 2 As an optional implementation, the blade insulation support assembly also includes an equalizing cover 3, which is sleeved on the surface of the conductor 1 and located between the support 2 and the conductor 1.

[0046] The electric field lines of the conductor 1 are concentrated by the equalizing cover 3, thereby improving the insulation strength and further reducing the volume of the blade insulation support assembly, making its structure compact and facilitating its layout in the ring main unit.

[0047] In some embodiments, the equalizing shield 3 is circular, and the diameter of the equalizing shield 3 is greater than the width of the conductor 1, and the equalizing shield 3 is located at the point where the cross-sectional area of ​​the support 2 is the largest.

[0048] As an optional implementation, the support 2 and the conductor 1 are sealed together as one unit.

[0049] In some embodiments, the support 2 and the conductor 1 can be sealed together by integral sealing or screw installation. The support 2 can also be integrally cast to fit tightly with the conductor 1, so as to achieve reliable insulation and support for the conductor 1, while improving the reliability of the equalizing cover 3 fixed between the support 2 and the conductor 1.

[0050] refer to Figure 2 As an optional implementation, the support 2 includes a support body 21 and a protrusion 22. The support body 21 covers the surface of the conductor 1. The protrusion 22 is located on the outside of the support body 21, and there is at least one protrusion 22, which is used to position the support body 21 to improve the accuracy of the support 2 installation and the stability of the support.

[0051] refer to Figure 3 and Figure 5 As an optional implementation, the isolating switch connection part 11 includes an isolating switch connection part body 111 and an isolating switch connection hole 112. The upper end of the conductor 1 extends to the outside of the support 2 to form the isolating switch connection part body 111. The isolating switch connection hole 112 is used to connect the isolating switch 200. The isolating switch 200 is connected to the isolating switch connection part body 111 through the isolating switch connection hole 112, and the isolating switch 200 is rotatable relative to the isolating switch connection part body 111.

[0052] The isolating switch 200 can be connected to the isolating switch connection hole 112 via a rotating shaft, and the isolating switch connection body 111 provides rotational support for the isolating switch 200.

[0053] As an optional implementation, at least one of the isolating switch connecting body 111 and the copper rod connecting body 121 is in the shape of a sheet, and a plurality of isolating switches 200 are clamped in the isolating switch connecting body 111. The mounting lug of the copper rod 100 can overlap with the sheet-shaped copper rod connecting body 121 to increase the overlap area and improve the conductivity.

[0054] Multiple isolating switches 200 are clamped on both sides of the sheet-shaped isolating switch connecting body 111 to increase the mating area between the isolating switch 200 and the isolating switch connecting body 111, thereby improving the support of the isolating switch 200 and the rotation accuracy of the isolating switch 200.

[0055] refer to Figure 5 As an optional implementation, the blade insulation support assembly also includes a fixing plate 4, which is fixed to both sides of the support 2 to fix the support 2 inside the ring main unit.

[0056] The creepage distance of the blade insulation support assembly is increased by fixing plates 4 on both sides of the support 2, thereby improving the insulation strength.

[0057] In some embodiments, the fixing plate 4 is made of insulating material, and threaded connection holes 23 are provided on both sides of the support body 21. The fixing plate 4 can be screwed into the threaded connection holes 23 by threaded inserts to securely connect the fixing plate 4 and the support 2. The fixing plate 4 has holes that match the position of the protrusion 22. The protrusion 22 can be inserted into the holes to achieve precise positioning and force support between the fixing plate 4 and the protrusion 22.

[0058] As an optional implementation, the surface at the contact point between conductor 1 and support 2 has a rolled pattern to improve the tightness of the fit between conductor 1 and support 2.

[0059] refer to Figure 4 As an optional implementation, the blade insulation support assembly also includes a limiting member 5 connected to the conductor 1 and the support 2 to limit the relative position between the conductor 1 and the support 2, thereby further limiting the conductor 1 within the support 2.

[0060] In some embodiments, the limiting member 5 may be a screw.

[0061] This application also provides a ring main unit, including the above-mentioned blade insulated support assembly.

[0062] As an optional implementation, there are multiple spacer insulating support assemblies, each of which is connected to multiple copper rods 100, and the positions of the multiple copper rods 100 are staggered and do not overlap.

[0063] For example, a ring main unit has three blade insulation support assemblies arranged longitudinally: a first blade insulation support assembly, a second blade insulation support assembly, and a third blade insulation support assembly. These assemblies are distributed to connect three copper rods: phase A, phase B, and phase C copper rods (100). Each blade insulation support assembly has two copper rod connection holes (122): copper rod connection hole A and copper rod connection hole B. The phase A copper rod is connected to the copper rod connection hole A of the first blade insulation support assembly, the phase B copper rod is connected to the connection hole B of the second blade insulation support assembly, and the phase C copper rod is connected to the copper rod connection hole A of the third blade insulation support assembly; or the phase A copper rod is connected to the copper rod connection hole B of the first blade insulation support assembly, the phase B copper rod is connected to the connection hole A of the second blade insulation support assembly, and the phase C copper rod is connected to the copper rod connection hole B of the third blade insulation support assembly. This design ensures that the copper rods 100 connected to adjacent blade insulation support assemblies are staggered, improving the visibility and ease of installation of the copper rods 100. Furthermore, the horizontal lines connecting the connection points of the A-phase, B-phase, and C-phase copper rods to the blade insulation support assembly form a triangle, and the distances between the A-phase and B-phase copper rods, as well as between the B-phase and C-phase copper rods, are all oblique lines. This increases the distance between adjacent copper rods 100, improving the insulation effect.

[0064] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. Furthermore, any changes or modifications made by those skilled in the art based on the ideas of this application, and on the specific implementation methods and application scope of this application, are all within the scope of protection of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A blade-insulating support assembly, characterized in that, include: A conductor, the upper end of which has an isolating switch connection portion, and the lower end of which has a copper rod connection portion, the copper rod connection portion comprising: The copper rod connecting part body is located at the lower end of the conductor; Multiple copper rod connection holes are provided, with a spacing between two adjacent copper rod connection holes, so as to stagger the multiple copper rods and increase the insulation distance between the multiple copper rods. A support is provided, which covers the surface of the conductor, and the upper and lower ends of the conductor extend to the outside of the support, respectively.

2. The blade-insulating support assembly according to claim 1, characterized in that, Also includes: An equalizing cover is fitted onto the surface of the conductor and located between the support and the conductor.

3. The blade-insulating support assembly according to claim 1, characterized in that, The support and the conductor are sealed together as a single unit.

4. The blade-insulating support assembly according to claim 1, characterized in that, The support includes: The support body covers the surface of the conductor; The protrusion is located on the outside of the support body and is used to position the support body.

5. The blade-insulating support assembly according to claim 1, characterized in that, The isolating switch connection part includes: The isolating switch connection body, wherein the upper end of the conductor extends to the outside of the support to form the isolating switch connection body; The isolating switch connection hole is used to connect the isolating switch. The isolating switch is connected to the isolating switch connection body through the isolating switch connection hole, and the isolating switch can rotate relative to the isolating switch connection body.

6. The blade-insulating support assembly according to claim 5, characterized in that, At least one of the isolating switch connecting body and the copper rod connecting body is in the shape of a sheet, and a plurality of isolating switches are clamped in the isolating switch connecting body.

7. The blade-insulating support assembly according to claim 1, characterized in that, Also includes: Fixing plates are provided on both sides of the support to fix the support inside the ring main unit.

8. The blade-insulating support assembly according to claim 1, characterized in that, The surface of the conductor at the point of contact with the support has a rolled pattern.

9. The blade-insulating support assembly according to claim 1, characterized in that, Also includes: A limiting member, connected to the conductor and the support, restricts the relative position between the conductor and the support.

10. A ring main unit, characterized in that, Includes the blade-insulating support assembly as described in any one of claims 1-9.

11. The ring main unit according to claim 10, characterized in that, There are multiple spacer insulating support assemblies, and each of the multiple spacer insulating support assemblies is connected to a multiple of the copper rods, and the positions of the multiple copper rods are staggered and do not overlap each other.

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