Wrapping type copper aluminum bar

Abstract

The utility model relates to the technical field of copper-aluminum bars, in particular to a wrapping type copper-aluminum bar, which comprises a conductor, a protective layer is arranged on the outer side of the conductor, the protective layer comprises a polyimide composite film, a heat conducting layer and a waterproof layer which are arranged from inside to outside, the double surfaces of the polyimide composite film are coated with glue, and the glue is made of high-temperature-resistant resin. The high-temperature-resistant resin is fluorinated ethylene propylene resin, and the outer side of the conductor is provided with a fastening assembly. According to the utility model, through the arrangement of the polyimide composite film, the heat conduction layer and the waterproof layer, external water vapor, dust and other impurities are effectively prevented from invading, the heat dissipation effect is good, the insulation performance is ensured, and through the arrangement of the fastening ring, the fastening ring is made of a tungsten copper alloy ring, and the tungsten copper alloy has high strength and good conductivity, so that the service life is prolonged. On one hand, the mechanical strength of the conductor can be enhanced, so that the conductor is not easy to deform in the use process, and on the other hand, the conductivity of the conductor cannot be negatively influenced due to the conductivity of the conductor, so that the stability of power transmission is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper aluminium row technical field, especially in a kind of winding copper aluminium row. BACKGROUND

[0002] In the field of new energy batteries, the application background of aluminum copper row is mainly closely related to the development of new energy vehicles and energy storage systems, as a key conductor in new energy battery pack, aluminum copper row needs to be newly adjusted and system upgraded in current-carrying, high temperature resistance, insulation, voltage resistance level, lightweight and the like, aluminum copper row is a kind of conductive material made of aluminum or copper, which is usually used in power transmission and distribution system.

[0003] For the related technology in the above, the defects of the existing copper aluminum row are that the existing high-performance new energy vehicles work continuously under high load in the working conditions of high-speed driving or continuous climbing, generate a large amount of heat, when the temperature exceeds the tolerance limit of the surface insulation material of copper aluminum row, the insulation material may soften, age or even melt, thereby causing electric leakage and affecting the waterproof effect of copper aluminum row, therefore, the utility model provides a winding copper aluminum row. UTILITY MODEL CONTENT

[0004] The purpose of the present application is to provide a winding copper aluminum row to solve the problem that the existing high-performance new energy vehicles work continuously under high load in the working conditions of high-speed driving or continuous climbing, generate a large amount of heat, when the temperature exceeds the tolerance limit of the surface insulation material of copper aluminum row, the insulation material may soften, age or even melt, thereby causing electric leakage and affecting the waterproof effect of copper aluminum row.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a winding copper aluminum row, comprising a conductor, characterized in that: the outer side of the conductor is provided with a protective layer, the protective layer comprises a double-sided glued polyimide composite film, a heat conducting layer and a waterproof layer arranged from inside to outside, the polyimide composite film, the heat conducting layer and the waterproof layer are all formed by winding, the gluing material is high-temperature-resistant resin, the high-temperature-resistant resin is polyperfluoroethylene propylene resin, and the outer side of the conductor is provided with a fastening assembly.

[0006] Preferably, the fastening assembly comprises a plurality of grooves formed on the outer side of the conductor, the inner wall side of the groove is fixedly connected with a fastening ring, and the fastening ring is made of tungsten-copper alloy ring.

[0007] Preferably, the waterproof layer is made of polytetrafluoroethylene film winding, and the heat conducting layer is made of aluminum foil winding.

[0008] Preferably, a plurality of heat conducting holes are formed in the inner side of the conductor, and the plurality of heat conducting holes are evenly arranged.

[0009] In summary, the technical effects and advantages of the utility model are as follows:

[0010] 1. In the utility model, through the setting of the polyimide composite film, the heat conduction layer and the waterproof layer, the intrusion of external water vapor, dust and other impurities is effectively prevented, and the heat dissipation effect is good, the insulation performance is guaranteed, the waterproof layer is made of a polytetrafluoroethylene film, the polytetrafluoroethylene has excellent chemical stability and is not easy to be eroded by water and other polar solvents, strong acid and strong alkali and other polar substances, and its performance is not easy to change in the case of long-term contact with water, and the waterproof effect can be maintained all the time, the setting of the waterproof layer improves the overall waterproof performance, and through the setting of the fastening ring, the fastening ring is made of a tungsten copper alloy ring, the tungsten copper alloy has high strength and good electrical conductivity, on the one hand, the mechanical strength of the conductor can be enhanced, so that the conductor is not easy to deform in the use process, and on the other hand, due to the electrical conductivity of the fastening ring, the electrical conductivity of the conductor is not affected, and the stability of power transmission is ensured.

[0011] 2. In the utility model, the material for gluing on the surface of the polyimide composite film is high-temperature-resistant resin, specifically polyperfluoroethylene propylene resin or polytetrafluoroethylene resin, and the resin has excellent high-temperature resistance, so that the polyimide composite film can be tightly attached to the conductor even in a high-temperature environment, and the intrusion of external water vapor, dust and other impurities is effectively prevented, thereby providing a reliable first protective barrier for the conductor. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Figure 1 It is a first perspective view of the structure of the utility model on the shaft side;

[0014] Figure 2 It is a second perspective view of the structure of the utility model on the shaft side;

[0015] Figure 3 It is a structure diagram of the fastening ring of the utility model;

[0016] Figure 4 It is Figure 1 A magnified structure diagram of the A place.

[0017] In the figure: 1, conductor; 2, protective layer; 3, polyimide composite film; 4, heat conduction layer; 5, waterproof layer; 6, heat conduction hole; 7, groove; 8, fastening ring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood in a broad sense. For example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; or can be connected internally between two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0020] Embodiment: Reference Figures 1-4The application discloses a copper-aluminum winding type row, which adopts a high-precision winding machine to wind a film with specific width and thickness on the surface of a conductor 1, and comprises the conductor 1 and a protective layer 2. The conductor 1 is a core component for current transmission and bears a main electric conduction task to guarantee smooth power transmission. The outer side of the conductor 1 is provided with the protective layer 2, which plays a vital protection role and comprises a double-sided glue-coated polyimide composite film 3, a heat conduction layer 4 and a waterproof layer 5 arranged from inside to outside. The waterproof effect of the polyimide composite film 3 is not good, and the waterproof layer 5 improves the overall waterproof effect. The glue-coated material is high-temperature-resistant resin, specifically polyperfluoroethylene propylene resin or polytetrafluoroethylene resin. The resin has excellent high-temperature resistance, and can ensure that the polyimide composite film 3 is tightly attached to the conductor 1 even in a high-temperature environment, effectively prevents external water vapor, dust and other impurities from invading, and provides a reliable first protective barrier for the conductor 1. The outer side of the conductor 1 is provided with a fastening assembly, which comprises a plurality of grooves 7 formed in the outer side of the conductor 1. The grooves 7 provide mounting positions for fastening rings 8. The fastening rings 8 are made of weldable material and can be stably attached to the conductor 1. The inner wall side of the groove 7 is fixedly connected with the fastening ring 8. The fastening ring 8 is made of tungsten-copper alloy. The tungsten-copper alloy has high strength and good conductivity, which can enhance the mechanical strength of the conductor 1 and prevent the conductor 1 from being deformed during use. On the other hand, due to the conductivity of the tungsten-copper alloy, the conductor 1 will not be negatively affected in terms of conductivity, thereby ensuring the stability of power transmission. The waterproof layer 5 is made of polytetrafluoroethylene film. Polytetrafluoroethylene has excellent chemical stability and is not easily eroded by water and other polar solvents, strong acids and strong bases. Its performance will not change in long-term contact with water, and it can always maintain good waterproof effect. The polyimide composite film, the heat conduction layer 4 and the waterproof layer 5 are all formed by winding. The heat conduction layer 4 is made of aluminum foil winding. It can quickly conduct the heat generated by the conductor 1 to the outside, avoid the heat from accumulating in the conductor 1, maintain the conductor 1 in an appropriate working temperature range, and further ensure the performance stability of the whole winding type copper-aluminum row. A plurality of heat conduction holes 6 are formed in the inner side of the conductor 1. The heat conduction holes 6 are uniformly arranged. The heat conduction holes 6 further improve the heat dissipation efficiency of the conductor 1. They cooperate with the heat conduction layer 4 to form an efficient heat dissipation channel, accelerate heat dissipation, and reduce the risk of performance degradation or damage of the conductor 1 due to overheating. The polyimide composite film 3 is made by coating a coating liquid on a polyimide film and then performing a corona activation treatment. This manufacturing process makes the polyimide composite film 3 have better flexibility and adhesion, can tightly wrap the conductor 1, and better play a protective role to block the erosion of external adverse factors on the conductor 1.

[0021] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A round copper-aluminum cable comprising a conductor (1), characterized in that: The outer side of the conductor (1) is provided with a protective layer (2), the protective layer (2) comprises double-sided coated polyimide composite film (3), heat conducting layer (4) and waterproof layer (5) from inside to outside, the polyimide composite film (3), heat conducting layer (4) and waterproof layer (5) are all wrapped, the coated material is high temperature resistant resin, the high temperature resistant resin is polytetrafluoroethylene resin, the outer side of the conductor (1) is provided with a fastening assembly.

2. The copper-aluminum flat conductor according to claim 1, wherein: The fastening assembly comprises a plurality of grooves (7) formed on the outer side of the conductor (1), the inner wall side of the groove (7) is fixedly connected with a fastening ring (8), and the fastening ring (8) is made of tungsten copper alloy ring.

3. A copper-aluminum rod as claimed in claim 2, wherein: The waterproof layer (5) is made of polytetrafluoroethylene film wrapping, and the heat conducting layer (4) is made of aluminum foil wrapping.

4. The copper-aluminum busbar of claim 1, wherein: The inner side of the conductor (1) is provided with a plurality of heat conducting holes (6), and the plurality of heat conducting holes (6) are uniformly arranged.

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