Energy-saving portable large-current insulation sleeve

Abstract

The utility model relates to the technical field of insulation parts for high voltage switch equipment, and disclose an energy -conserving type big current insulation bushing of easy -to -wear, including installation panel and wear and tear bushing, wear and tear bushing integrated on the connecting plate surface, the connecting plate surface is formed by installation panel concave, and installation panel concave forms a connecting plate surface, the connecting plate surface interval distribution multiple wear and tear bushing, the utility model discloses three -phase integral type forming through installation panel, connecting plate surface, wear and tear bushing, and the insulation mounting panel of self -insulation replaces the anti -eddy current stainless steel plate, and multiple components assembling are not needed, and the installation only needs to be fixed through the bushing installation hole, and the hole can be opened to one -phase busbar, and the installation efficiency is improved, and the integral dismounting is replaced, and the maintenance time is shortened.

Description

Technical Field

[0001] This utility model relates to the technical field of insulating components for high-voltage switchgear, and in particular to an energy-saving, portable high-current insulating bushing. Background Technology

[0002] As power systems develop towards higher efficiency and integration, switchgear, as the core equipment for power transmission and distribution, is seeing its application scenarios continuously expand. Insulating bushings, as key insulating components in switchgear, directly affect the overall operational stability of the switchgear. With current technology, existing insulating bushings already possess certain basic insulation functions. By adopting suitable insulating materials and advanced manufacturing processes, insulating bushings can provide reliable insulation support for switchgear under normal operating voltage and environmental conditions, ensuring that the switchgear can stably complete the tasks of power transmission and distribution and meet the basic requirements of normal power system operation.

[0003] The existing insulating bushings rely on the cabinet's built-in anti-eddy current stainless steel plate for installation, resulting in the three-phase insulating bushings being separated from the mounting plate. During installation, additional positioning and fitting of the bushings and stainless steel plate are required, and replacement also requires disassembling the relevant parts of the cabinet's stainless steel plate. The overall installation and replacement process is cumbersome and inefficient.

[0004] Therefore, an energy-saving, portable, high-current insulating bushing was designed. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing an energy-saving, portable, high-current insulating bushing. It solves the problems of existing insulating bushings relying on the cabinet's anti-eddy current stainless steel plate for installation, which causes the three-phase bushing to separate from the mounting plate, requiring additional positioning and fitting, and replacement of stainless steel plate components, resulting in a cumbersome and inefficient process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An energy-saving, portable high-current insulating bushing includes a mounting panel and a through-tube bushing, wherein the through-tube bushing is integrally formed on a connecting plate surface, and the connecting plate surface is formed by the recess of the mounting panel.

[0007] Preferably, the mounting panel is recessed to form a connecting plate surface, and multiple through sleeves are distributed at intervals on the connecting plate surface.

[0008] Preferably, the mounting panel is recessed to form multiple connecting plate surfaces, and each connecting plate surface is provided with a through sleeve.

[0009] Preferably, the through sleeve maintains a distance from the edge of the connecting plate.

[0010] Preferably, the connecting plate surface is configured with a concave-convex structure between adjacent through-tube sleeves.

[0011] Preferably, the mounting panel has multiple sleeve mounting holes circumferentially mounted.

[0012] Preferably, the connecting plate surface is recessed within the mounting panel to penetrate the mounting wall.

[0013] Preferably, the insertion sleeve has openings at both ends and has an insertion cavity.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This utility model is formed by integrating the mounting panel, connecting plate, and bushing into a single unit. It has an integrated insulating mounting plate to replace the anti-eddy current stainless steel plate, eliminating the need for multi-part assembly. Installation only requires fixing through the bushing mounting hole, and the hole can be opened by aligning with one phase busbar, thus improving installation efficiency. Replacement is done by disassembling the whole unit, shortening maintenance time.

[0015] This utility model can completely replace single-phase and three-phase bushings of various installation sizes through its three-phase integrated design; the mounting panel is compatible with different models of switchgear, improving the reuse rate of components and reducing the cost of modification.

[0016] This utility model increases the creepage distance through the concave-convex design of the thin plate, increases the distance between the busbar and the inner wall of the bushing by expanding the inner cavity of the busbar, and sets the busbar hole on the top surface of the boss to avoid the electric field concentration area. The three factors work together to make the electric field evenly distributed and reduce the risk of insulation breakdown.

[0017] The concave-convex design of this utility model reduces material usage and lowers material costs; the three-phase integrated molding process reduces molding time, reduces manual operation, lowers production costs, and lowers maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the mounting panel of this utility model, which has a recessed connecting plate surface with multiple spaced through sleeves; Figure 2 A schematic diagram of the structure of the mounting panel of this utility model with multiple connecting plate surfaces formed by the concave interior and each connecting plate surface provided with a through-tube sleeve; Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0020] Drawing number explanation: 1. Mounting panel; 2. Through sleeve; 3. Connecting plate; 4. Sleeve mounting hole. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0023] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0025] Example 1: Please see Figure 1 An energy-saving, portable, high-current insulating bushing includes a mounting panel 1 and a through-tube bushing 2. The through-tube bushing 2 is integrally formed on a connecting plate surface 3, which is formed by a recess in the mounting panel 1. Multiple through-tube bushings 2 are spaced apart on the connecting plate surface 3, and the through-tube bushings 2 maintain a distance from the edge of the connecting plate surface 3. The mounting panel 1 has multiple bushing mounting holes 4 circumferentially mounted. The connecting plate surface 3 can pass through the mounting wall at the recessed depth of the mounting panel 1. The through-tube bushing 2 is open at both ends and has a through-tube inner cavity. By adopting a three-phase integrated molding structure consisting of mounting panel 1, connecting plate 3, and bushing 2, and with a built-in three-phase integrated insulating mounting plate, it can directly replace the original anti-eddy current stainless steel plate of the cabinet without the need for additional assembly of multiple parts. During installation, it is only necessary to fix it with bolts through the multiple bushing mounting holes 4 around the mounting panel 1 and align it with one of the phase busbars to quickly complete the installation opening of the switch cabinet side panel. There is no need to repeatedly position and adapt the three-phase components, simplifying the installation process. When replacing, it can be disassembled as a whole without disassembling the three-phase components. By adopting a three-phase integrated design with a large panel, it can replace single-phase bushings or three-phase integrated bushings of various installation sizes in switchgear with similar bushing arrangements. There is no need to customize exclusive bushings for different specifications of cabinets. The large size of the mounting panel 1 can be designed to be compatible with the installation requirements of different models of switchgear. By setting the three-phase bushing through holes on the top surface of the boss and increasing the distance between them and the mounting panel 1, the concentrated electric field areas can be effectively avoided, thus preventing the risk of surface discharge or insulation breakdown under high voltage and high current conditions. Example 2: Please see Figure 2 An energy-saving, portable, high-current insulating bushing includes a mounting panel 1 and a through-tube bushing 2. The through-tube bushing 2 is integrally formed on a connecting plate surface 3. The connecting plate surface 3 is formed by the recess of the mounting panel 1, and multiple connecting plate surfaces 3 are formed by the recess of the mounting panel 1. Each connecting plate surface 3 is provided with a through-tube bushing 2, and the through-tube bushing 2 is kept at a distance from the edge of the connecting plate surface 3. The mounting panel 1 has multiple bushing mounting holes 4 circumferentially installed. The connecting plate surface 3 can pass through the mounting wall at the recessed depth of the mounting panel 1. The through-tube bushing 2 is open at both ends and has a through-tube inner cavity. Through the physical separation of multiple independent connecting plates 3, each bushing 2 carries a corresponding phase conductor, forming a clear phase isolation boundary, which can effectively reduce electromagnetic induction and signal interference between the three phase conductors, and effectively avoid current fluctuations and local eddy current losses caused by interference. By ensuring that the bushings 2 on the connecting plate 3 maintain a safe distance from the edge of the connecting plate 3, insulation breakdown of the edge of the connecting plate 3 in a single phase can be prevented. Through the separation design of multiple independent connecting plates 3, the insulation creepage paths of each phase bushing 2, such as the inner wall of the bushing cavity and the surface of the connecting plate 3, do not overlap, effectively avoiding the risk of interphase surface discharge caused by the intersection of insulation paths.

[0026] Example 3: Please see Figure 3An energy-saving, portable, high-current insulating bushing includes a mounting panel 1 and a through-tube bushing 2. The through-tube bushing 2 is integrally formed on a connecting plate surface 3, which is formed by the recess of the mounting panel 1. The mounting panel 1 is recessed to form a connecting plate surface 3, and multiple through-tube bushings 2 are spaced apart on the connecting plate surface 3. The through-tube bushing 2 maintains a distance from the edge of the connecting plate surface 3. The mounting panel 1 has multiple bushing mounting holes 4 circumferentially installed. The connecting plate surface 3 can penetrate the mounting wall at the recessed depth of the mounting panel 1. The through-tube bushing 2 is open at both ends and has a through-tube inner cavity. The connecting plate surface 3 has a concave-convex structure between adjacent through-tube bushings 2. By using a thin plate concave-convex design between adjacent bushings 2 on the connecting plate 3, the creepage distance is greatly increased compared to the traditional umbrella-shaped structure. The concave-convex structure can also increase the inner cavity of the bushing 2, thereby increasing the distance between the busbar and the inner wall of the bushing and making the electric field distribution more uniform. By replacing the traditional inner and outer umbrella group structure with a thin plate concave-convex design, the amount of insulation material used is effectively reduced, thus reducing the product weight and material costs. The enlarged inner cavity of the through-tube sleeve 2 and the concave structure of the connecting plate surface 3 form a heat dissipation channel, which can reduce the product temperature rise during operation.

[0027] Workflow Based on the three-phase layout requirements of the switchgear, select the product with the corresponding connection panel 3 design: if the three-phase conductors of the switchgear need to be centrally arranged, select the style where the mounting panel 1 is recessed to form a connection panel 3 with multiple bushings 2 spaced apart; if the three-phase conductors need to be independently zoned, select the style where the mounting panel 1 is recessed to form multiple connection panels 3 with bushings 2 on each connection panel 3; at the same time, based on the thickness of the wall, confirm that the recessed depth of the connection panel 3 can completely pass through the wall to avoid additional processing; Using the multiple bushing mounting holes 4 distributed around the circumference of the mounting panel 1, the mounting panel 1 is fixed to the switch cabinet body with bolts and other fasteners. There is no need to add an anti-eddy current stainless steel plate. During the fixing process, ensure that the bushing 2 and the edge of the connecting plate 3 maintain a preset safe distance to prevent insulation breakdown. Insert the high-current conductor to be conducted into the inner cavity of the bushing 2, which has openings at both ends, ensuring that the conductor fits tightly against the inner wall of the bushing cavity without friction. After installation, check whether the concave and convex structures between adjacent bushings 2 are intact to avoid affecting the creepage distance due to structural damage. Finally, confirm that the relative positions of the conductor, bushing 2, and mounting panel 1 meet the insulation and conductivity requirements, and complete the installation. If replacement is required, simply remove the fixing bolts of mounting panel 1, and directly remove the entire bushing without disassembling the three-phase components. Repeat the above steps to install the new part, reducing modifications to the switch cabinet.

[0028] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. An energy-saving, portable, high-current insulating bushing, characterized in that: It includes a mounting panel (1) and a through sleeve (2), the through sleeve (2) being integrally formed on a connecting plate surface (3), the connecting plate surface (3) being formed by the recess of the mounting panel (1).

2. The energy-saving portable high-current insulating bushing according to claim 1, characterized in that: The mounting panel (1) is recessed to form a connecting plate surface (3), and multiple through sleeves (2) are distributed at intervals on the connecting plate surface (3).

3. The energy-saving portable high-current insulating bushing according to claim 1, characterized in that: The mounting panel (1) is recessed to form multiple connecting plate surfaces (3), and each connecting plate surface (3) is provided with a through sleeve (2).

4. An energy-saving portable high-current insulating bushing according to claim 2 or 3, characterized in that: The threaded sleeve (2) maintains a distance from the edge of the connecting plate surface (3).

5. The energy-saving portable high-current insulating bushing according to claim 2, characterized in that: The connecting plate surface (3) is constructed with a concave-convex structure between adjacent through-tube sleeves (2).

6. The energy-saving portable high-current insulating bushing according to claim 4, characterized in that: The mounting panel (1) has multiple sleeve mounting holes (4) installed circumferentially.

7. The energy-saving portable high-current insulating bushing according to claim 1, characterized in that: The connecting plate (3) is recessed within the mounting panel (1) to penetrate the mounting wall.

8. The energy-saving portable high-current insulating bushing according to claim 1, characterized in that: The threading sleeve (2) has openings at both ends and has a threading inner cavity.

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