Busbar insulation protection sleeve and bus duct shell using the same

Abstract

The utility model relates to the bus duct equipment field, specifically disclose a bus insulation protection sleeve and its application's bus duct shell, including bus duct shell and protection sleeve body, bus duct shell inner wall sets up protection sleeve jaw and positioning sliding block, sets up two copper bar slot in protection sleeve body, sets up fixed block and positioning sliding slot outside protection sleeve body to be used for with bus duct shell fixed, the both ends of protection sleeve body symmetry sets up the jamb, through setting up insulation cover, and copper bar is inserted into insulation cover, can improve the creepage distance between copper bar and bus duct shell because of insulation cover isolation, through the jamb still can improve copper bar and install the creepage distance of bus duct in bus duct shell inside, has improved high altitude test electrical safety.

Description

Technical Field

[0001] This utility model relates to the field of busbar equipment, specifically to a busbar insulation protective sleeve and its application in busbar housings. Background Technology

[0002] Busbar trunking is a high-efficiency, safe, and reliable power distribution equipment widely used in industrial, commercial, and civil buildings for power transmission and distribution. Busbar trunking consists of copper or aluminum busbars as the conductive body, covered with insulating material, and protected by a metal shell (such as aluminum alloy or steel). It is usually long and narrow, containing multiple parallel conductors for transmitting three-phase or single-phase power. The structural design of busbar trunking enables it to withstand large currents while maintaining low resistance and temperature rise, ensuring high efficiency and safety of power transmission.

[0003] When conducting electrical safety tests in high-altitude areas, the air pressure is low and the air insulation strength is reduced. Therefore, to ensure the safety of the test, the creepage distance between the copper busbar and the busbar trunking shell needs to be increased compared to lower-altitude areas. To address this issue, the insulation thickness is usually increased. However, increasing the insulation thickness will reduce the heat dissipation capacity. Therefore, a new type of busbar insulation sheath is needed to solve this problem. Utility Model Content

[0004] In order to solve the technical problems mentioned in the background section, this utility model proposes the following technical solutions:

[0005] A busbar insulation protective sleeve and its application in a busbar trunking housing include a busbar trunking housing and a protective sleeve body. Protective sleeve clamps are symmetrically arranged on the left and right sides of the inner wall of the busbar trunking housing. Positioning sliders are also symmetrically arranged on the left and right sides of the inner wall of the busbar trunking housing. Two copper busbar slots are provided inside the protective sleeve body. Fixing blocks are symmetrically arranged at the upper and lower ends of the protective sleeve body. A positioning groove is provided at the middle position on the left side of the protective sleeve body. Top blocks are symmetrically arranged at the upper and lower ends of the protective sleeve body, with the top blocks positioned symmetrically to the fixing blocks.

[0006] Preferably, both the positioning groove and the positioning slider have a "T" shaped cross-section.

[0007] Preferably, the four corners of the copper busbar slot are rounded.

[0008] Preferably, the protective sleeve body has a notch on the right side, and the notch communicates with the copper busbar slot.

[0009] Preferably, a curved groove is provided on the right side of the protective sleeve body, and the curved groove is located in the middle of the protective sleeve body and is symmetrically arranged with the positioning groove.

[0010] The beneficial effects of this utility model are:

[0011] 1. By setting up an insulating sleeve and inserting the copper busbar into the insulating sleeve, the creepage distance between the copper busbar and the busbar trunking shell can be increased due to the insulation of the sleeve. The top block can also increase the creepage distance between the copper busbar and the busbar trunking shell, thus improving the electrical safety of high-altitude testing.

[0012] 2. By setting notches and bending grooves, the protective cover body can be bent more easily. When the protective cover body is bent, the space inside the copper busbar slot becomes larger, allowing for the insertion of larger copper busbars. This solves the problem that copper busbars cannot be inserted into the copper busbar slot due to their excessive size. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0014] Fig. 2 This is a cross-sectional view of the present invention;

[0015] Fig. 3 This is a schematic diagram of the protective sleeve body structure in this utility model.

[0016] In the diagram: 1. Busbar trunking shell; 1-1. Protective sleeve clamp; 1-2. Positioning slider; 2. Protective sleeve body; 2-1. Copper busbar slot; 2-2. Fixing block; 2-3. Positioning groove; 2-4. Top block; 3. Notch; 4. Bending groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described by the terms "fixed connection" and "fixed setting" include, but are not limited to, "welding," "riveting," "adhesion," and "threaded connection." The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0019] The terms “upper,” “lower,” “front,” “back,” “left,” “right,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Example 1

[0021] Reference Figs. 1-3 A busbar insulation protective sleeve and its application in a busbar trunking shell include a busbar trunking shell 1 and a protective sleeve body 2. Protective sleeve clamps 1-1 are symmetrically arranged on the left and right sides of the inner wall of the busbar trunking shell 1. Positioning sliders 1-2 are also symmetrically arranged on the left and right sides of the inner wall of the busbar trunking shell 1. Two copper busbar slots 2-1 are arranged inside the protective sleeve body 2. Fixing blocks 2-2 are symmetrically arranged at the upper and lower ends of the protective sleeve body 2. A positioning groove 2-3 is arranged at the middle position on the left side of the protective sleeve body 2. Top blocks 2-4 are symmetrically arranged at the upper and lower ends of the protective sleeve body 2. The positions of the top blocks 2-4 are symmetrical to the fixing blocks 2-2.

[0022] Preferably, both the positioning groove 2-3 and the positioning slider 1-2 have a "T" shaped cross-section.

[0023] Preferably, the four corners of the copper busbar slot 2-1 are rounded.

[0024] In actual operation, first connect the positioning groove 2-3 in the middle of the protective sleeve body 2 to the positioning slider 1-2 on the busbar trough shell 1. Insert the fixing blocks 2-2 at the upper and lower ends into the protective sleeve claws 1-1. Then push the protective sleeve body 2 until it is completely submerged in the busbar trough shell 1. Then insert the copper busbar 5 into the copper busbar slot 2-1 on the protective sleeve body 2.

[0025] After the copper busbar is inserted, the creepage distance between the copper busbar and the busbar trunking shell is increased due to the insulation sleeve. The creepage distance between the copper busbar and the busbar trunking shell 1 can be further increased by the top block 2-4, which improves the electrical safety of high-altitude testing.

[0026] Example 2

[0027] Reference Fig. 2 The difference between this embodiment and the first embodiment is that a notch 3 is provided on the right side of the protective sleeve body 2, the notch 3 is connected to the copper busbar slot 2-1, and a curved groove 4 is provided on the right side of the protective sleeve body 2, the curved groove 4 is located in the middle of the protective sleeve body 2 and is symmetrically arranged with the positioning slide groove 2-3.

[0028] By setting the notch 3 and the bending groove 4, the protective cover body 2 can be bent more easily. When the protective cover body 2 is bent, the space inside the copper busbar slot 2-1 becomes larger, allowing for the insertion of larger copper busbars. This solves the problem that the copper busbar 5 cannot be inserted into the copper busbar slot 2-1 due to its excessive size.

Claims

1. A busbar insulation protective sleeve and its application in a busbar trunking housing, comprising a busbar trunking housing (1) and a protective sleeve body (2), characterized in that, The inner walls of the busbar trunking housing (1) are symmetrically provided with protective sleeve claws (1-1) on both sides. The inner walls of the busbar trunking housing (1) are also symmetrically provided with positioning sliders (1-2). The protective sleeve body (2) is provided with two copper busbar slots (2-1). The protective sleeve body (2) is symmetrically provided with fixing blocks (2-2) at both ends. The protective sleeve body (2) is provided with a positioning groove (2-3) in the middle of one side. The protective sleeve body (2) is symmetrically provided with top blocks (2-4) at both ends. The top blocks (2-4) are symmetrically located at the fixing blocks (2-2).

2. The busbar insulation protective sleeve according to claim 1 and its application in busbar trunking housing, characterized in that, Both the positioning groove (2-3) and the positioning slider (1-2) have a "T" shaped cross-section.

3. The busbar insulation protective sleeve according to claim 2 and its application in the busbar trunking housing, characterized in that, The copper busbar slot (2-1) has rounded corners.

4. The busbar insulation protective sleeve according to claim 1 and its application in the busbar trunking housing, characterized in that, The protective sleeve body (2) has a notch (3) on the right side, and the notch (3) is connected to the copper busbar slot (2-1).

5. The busbar insulation protective sleeve according to claim 4 and its application in the busbar trunking housing, characterized in that, A curved groove (4) is provided on one side of the protective sleeve body (2). The curved groove (4) is located in the middle of the protective sleeve body (2) and is symmetrically arranged with the positioning slide (2-3).

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