A wear-resistant and corrosion-resistant flame-retardant bus structure

Abstract

The utility model discloses a kind of wear-resistant corrosion-resistant flame-retardant busbar structures, it is related to busbar technical field, including busbar mechanism, the one end of the busbar mechanism is sleeved and is provided with crimping mechanism, the crimping mechanism is provided with two kinds, the utility model solves the current busbar mechanism using soft conductor connection, aggravates loss, poor wear resistance, while joint resistance is higher than hard copper row bolt connection joint problem, the utility model is set through crimping mechanism, triangular pressing plate and cover frame are set in conjunction, crimping screw can rotate for extruding rectangular copper bar overlapping between cover frame and triangular pressing plate, the arc shape of triangular pressing plate extrusion end increases rectangular copper bar connection contact surface, while bending rectangular copper bar, prevent it from falling off after connection, reduce contact loss, through the setting of busbar mechanism, rectangular copper bar section area is large, and the effect of electric conduction is good, nanometer passivation film, insulating anticorrosion layer and heat shrink tube sleeve cooperate to realize insulation wear-resistant corrosion-resistant.

Description

Technical Field

[0001] This utility model relates to the field of busbar technology, specifically to a wear-resistant, corrosion-resistant, and flame-retardant busbar structure. Background Technology

[0002] Busbars are conductor components in power systems used to collect, distribute, and transmit electrical energy. They are usually made of highly conductive materials such as copper and aluminum, and are mostly rectangular, circular, or tubular in shape. They are widely used in the electrical connections of substations, distribution cabinets, generators, and large equipment. Due to their large cross-sectional area, busbars can carry currents of hundreds to tens of thousands of amperes, which is much higher than the current carrying capacity of ordinary cables, making them suitable for high-power applications.

[0003] The busbar connection structure authorized by announcement number CN214754266U includes several busbar segments and at least one flexible conductor. The busbar includes a busbar body with a cavity. At least one end of the busbar body is pressed to form a mating end when it is in an annealed state. The mating end has a mating cavity communicating with the cavity. The flexible conductor includes end heads located at both ends and a connecting body connecting the two end heads. During connection, one end of the flexible conductor is pressed into the mating cavity of the mating end of one busbar, and the other end of the flexible conductor is pressed into the mating cavity of the mating end of another busbar. This busbar mechanism uses a flexible conductor connection. Due to the skin effect and contact gap, the actual conductive cross-sectional area of ​​the flexible conductor is lower than that of a hard copper busbar of the same specification, which aggravates losses and has poor wear resistance. At the same time, the resistance of the flexible conductor joint is higher than that of the bolted joint of the hard copper busbar, which easily causes local temperature rise exceeding the standard.

[0004] To address the aforementioned issues, a wear-resistant, corrosion-resistant, and flame-retardant busbar structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a wear-resistant, corrosion-resistant, and flame-retardant busbar structure, which solves the problem that the existing busbar structure in the background technology uses soft conductor connection. Due to the skin effect and contact gap, the actual conductive cross-sectional area of ​​the soft conductor is lower than that of the same specification hard copper busbar, which aggravates the loss and has poor wear resistance. At the same time, the resistance of the soft conductor joint is higher than that of the bolted joint of the hard copper busbar, which easily causes the local temperature rise to exceed the standard.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant and corrosion-resistant flame-retardant busbar structure, comprising a busbar mechanism, one end of which is fitted with a crimping mechanism. The crimping mechanism can be configured in two ways. The busbar mechanism includes a rectangular copper busbar, the outer side of which is fitted with a nano-level passivation film, an insulating and anti-corrosion layer, and a heat-shrink tubing from the inside out. The crimping mechanism includes a frame for inserting the rectangular copper busbar, a triangular pressure plate is movably disposed inside the frame, and a crimping screw is threaded to the lower end of the frame.

[0007] Preferably, the nanoscale passivation film is formed on the surface of a rectangular copper busbar by chromate passivation.

[0008] Preferably, the insulating and anti-corrosion layer is formed by heating and melting epoxy resin powder to adhere it.

[0009] Preferably, the heat shrink tubing is made of heat shrink tubing material and is heat resistant to 125°C.

[0010] Preferably, the surfaces of the sleeve frame and the triangular pressure plate are coated with halogen-free flame-retardant insulating varnish.

[0011] Preferably, the frame has a triangular groove inside, and the triangular groove matches the shape of the triangular pressure plate.

[0012] Preferably, the side of the sleeve is provided with a socket for inserting a rectangular copper busbar. The two types of sleeves have different opening directions: one is opened in opposite directions, which is suitable for horizontal connection of rectangular copper busbars, and the other is opened in adjacent directions, which is suitable for vertical connection of rectangular copper busbars.

[0013] Preferably, four sets of crimping screws are provided, corresponding to the four corners of the triangular pressure plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model provides a wear-resistant, corrosion-resistant, and flame-retardant busbar structure. Through the setting of the crimping mechanism, the triangular pressure plate and the sleeve frame are fitted together. The crimping screw can rotate to crimp the rectangular copper busbar overlapping between the sleeve frame and the triangular pressure plate. The arc setting of the crimping end of the triangular pressure plate increases the contact surface of the rectangular copper busbar while bending the rectangular copper busbar to prevent it from falling off after connection and reduce contact loss. At the same time, the thickness of the sleeve frame in this structure is greater than that of the busbar mechanism to prevent parallel busbar mechanisms from contacting each other and increase the isolation area. This solves the problem that the resistance of the soft conductor joint of the existing busbar mechanism is higher than that of the hard copper busbar bolt connection joint, which is prone to causing local temperature rise exceeding the standard.

[0016] 2. This utility model provides a wear-resistant and corrosion-resistant flame-retardant busbar structure. Through the setting of the busbar mechanism, the rectangular copper busbar has a large cross-sectional area and good conductivity. The nano-level passivation film, the insulating and anti-corrosion layer and the heat-shrink tubing work together to achieve insulation, wear resistance and corrosion resistance. This solves the problem that the existing busbar mechanism uses soft conductors for connection. Due to the skin effect and contact gap, the actual conductive cross-sectional area of ​​the soft conductor is lower than that of the same specification hard copper busbar, which aggravates the loss and has poor wear resistance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the busbar mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the busbar mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the pressing mechanism of this utility model. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the pressing mechanism of this utility model. Figure 2 .

[0022] In the diagram: 1. Busbar mechanism; 11. Rectangular copper busbar; 12. Nanoscale passivation film; 13. Insulating and anti-corrosion layer; 14. Heat shrink tubing; 2. Crimping mechanism; 21. Sleeve frame; 211. Triangular groove; 212. Socket; 22. Triangular pressure plate; 23. Crimping screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0025] Combination Figure 1 This utility model discloses a wear-resistant, corrosion-resistant, and flame-retardant busbar structure, including a busbar mechanism 1. One end of the busbar mechanism 1 is fitted with a crimping mechanism 2. The crimping mechanism 2 has two configurations. The busbar mechanism 1 includes a rectangular copper busbar 11. From the inside to the outside, a nano-level passivation film 12, an insulating and anti-corrosion layer 13, and a heat-shrinkable tubing 14 are respectively fitted on the outer side of the rectangular copper busbar 11. The crimping mechanism 2 includes a frame 21 for inserting the rectangular copper busbar 11. A triangular pressure plate 22 is movably arranged inside the frame 21. A crimping screw 23 is threadedly connected to the lower end of the frame 21.

[0026] Specifically, the rectangular copper busbar 11 has a large cross-sectional area and good conductivity. The nano-level passivation film 12, the insulating and anti-corrosion layer 13, and the heat shrink tubing 14 work together to achieve insulation, wear resistance, and corrosion resistance. The sleeve frame 21 is configured in two ways, for the collinear connection busbar mechanism 1 and the vertical connection busbar mechanism 1, respectively. The triangular pressure plate 22 is fitted with the sleeve frame 21. The crimping screw 23 can rotate to press the rectangular copper busbar 11 overlapping between the sleeve frame 21 and the triangular pressure plate 22. The arc-shaped setting of the crimping end of the triangular pressure plate 22 increases the contact surface of the rectangular copper busbar 11 while bending the rectangular copper busbar 11 to prevent it from falling off after connection and reduce contact loss. At the same time, the thickness of the sleeve frame 21 in this structure is greater than that of the busbar mechanism 1 to prevent the parallel busbar mechanisms 1 from contacting each other and increase the isolation area.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example 1:

[0029] Combination Figure 2 and Figure 3 The nanoscale passivation film 12 is formed on the surface of the rectangular copper busbar 11 by chromate passivation. The nanoscale passivation film 12 inhibits copper oxidation and discoloration and improves corrosion resistance.

[0030] The insulating and anti-corrosion layer 13 is formed by heating and melting epoxy resin powder to adhere it, and the insulating and anti-corrosion layer 13 achieves insulation and corrosion protection.

[0031] The heat shrink tubing sleeve 14 is made of heat shrink tubing material and is heat resistant to 125℃. The heat shrink tubing sleeve 14 wraps and protects the rectangular copper busbar 11.

[0032] Example 2:

[0033] Combination Figure 4 and Figure 5 The surfaces of the sleeve frame 21 and the triangular pressure plate 22 are coated with halogen-free flame-retardant insulating varnish, and the halogen-free flame-retardant insulating varnish on the surfaces of the sleeve frame 21 and the triangular pressure plate 22 achieves insulating crimping of the two sets of busbar mechanisms 1.

[0034] The frame 21 has a triangular groove 211 inside, which matches the shape of the triangular pressure plate 22. The triangular pressure plate 22 and the triangular groove 211 work together to achieve the crimping and shaping between the rectangular copper busbars 11.

[0035] The side of the sleeve 21 is provided with a socket 212 for inserting a rectangular copper busbar 11. The two types of sleeve 21 have different opening directions for the socket 212. One type is opened in opposite directions, which is suitable for horizontal connection of the rectangular copper busbar 11. The other type is opened in adjacent directions, which is suitable for vertical connection of the rectangular copper busbar 11. The two settings of the sleeve 21 improve the connection adaptability of the rectangular copper busbar 11.

[0036] There are four sets of crimping screws 23, which are set at the four corners of the triangular pressure plate 22. Rotating the crimping screws 23 can apply pressure to the triangular pressure plate 22, thereby squeezing the rectangular copper busbar 11 to complete the connection.

[0037] It should be noted that, in this document, 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. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover 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 process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant, corrosion-resistant, flame-retardant busbar structure, comprising a busbar mechanism (1), characterized in that: One end of the busbar mechanism (1) is fitted with a crimping mechanism (2), and the crimping mechanism (2) is provided in two types; The busbar mechanism (1) includes a rectangular copper busbar (11), and the outer side of the rectangular copper busbar (11) is respectively fitted with a nano-level passivation film (12), an insulating and anti-corrosion layer (13) and a heat shrink tubing (14) from the inside to the outside. The crimping mechanism (2) includes a sleeve frame (21) for inserting the rectangular copper busbar (11), and a triangular pressure plate (22) is movably arranged inside the sleeve frame (21). The lower end of the sleeve frame (21) is threaded with a crimping screw (23).

2. The wear-resistant, corrosion-resistant, and flame-retardant busbar structure according to claim 1, characterized in that: The nanoscale passivation film (12) is formed on the surface of the rectangular copper busbar (11) by chromate passivation.

3. The wear-resistant, corrosion-resistant, and flame-retardant busbar structure according to claim 1, characterized in that: The insulating and anti-corrosion layer (13) is formed by heating and melting epoxy resin powder to adhere it.

4. The wear-resistant, corrosion-resistant, and flame-retardant busbar structure according to claim 1, characterized in that: The heat shrink tubing sleeve (14) is made of heat shrink tubing material and is heat resistant to 125℃.

5. The wear-resistant, corrosion-resistant, and flame-retardant busbar structure according to claim 1, characterized in that: The surfaces of the frame (21) and the triangular pressure plate (22) are coated with halogen-free flame-retardant insulating varnish.

6. The wear-resistant, corrosion-resistant, and flame-retardant busbar structure according to claim 1, characterized in that: The frame (21) has a triangular groove (211) inside, and the triangular groove (211) matches the shape of the triangular pressure plate (22).

7. The wear-resistant, corrosion-resistant, and flame-retardant busbar structure according to claim 1, characterized in that: The side of the frame (21) is provided with a socket (212) for inserting a rectangular copper busbar (11). The sockets (212) of the two types of frames (21) are opened in different directions. One type is opened in opposite directions, which is suitable for the horizontal connection of the rectangular copper busbar (11), and the other type is opened in adjacent directions, which is suitable for the vertical connection of the rectangular copper busbar (11).

8. The wear-resistant, corrosion-resistant, and flame-retardant busbar structure according to claim 1, characterized in that: The crimping screws (23) are provided in four sets, corresponding to the four corners of the triangular pressure plate (22).

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