Aluminum transposed conductor for long stator module

Abstract

The utility model relates to the technical field of wires, in particular to an aluminum transposed wire for a long stator module, which comprises a transposed wire body, the transposed wire body comprises a plurality of aluminum conductor wire cores, the aluminum conductor wire cores are spirally twisted and arranged, and an insulating isolation layer is arranged between every two adjacent aluminum conductor wire cores. The aluminum transposed conductor for the long stator module comprises aluminum conductor wire cores, a cooling channel is arranged in a central area formed by twisting the aluminum conductor wire cores, phase change cooling materials are filled in the cooling channel, and a metal shielding layer is wrapped on the outer side of each aluminum conductor wire core. By adopting the measures of the aluminum conductor wire cores which are spirally twisted and arranged, the built-in phase change cooling material, the insulation isolation layer coated with the nano ceramic coating, the metal shielding layer and the fireproof layer and the like, the comprehensive performance of the wire can be comprehensively improved, and the urgent demand of a modern long stator module on the high-performance wire can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to wire technical field especially relates to a long stator module is with aluminium transposition wire. BACKGROUND

[0002] In the field of rail transit, large motor and power transmission, long stator module as core component, its performance directly determines the overall efficiency and reliability of the system. The traditional long stator module wire adopts copper material or ordinary aluminum wire, however, with the continuous improvement of equipment power density and the increase of operating environment complexity, the existing wire technology gradually exposes many limitations.

[0003] On the one hand, although copper wire has excellent electrical conductivity, it is high in cost and scarce in resources, which is difficult to meet the large-scale application demand. Although ordinary aluminum wire is low in cost, it is easy to cause uneven current distribution due to skin effect under long-term operation, which leads to local overheating, reduces the service life of the wire and increases the energy consumption. On the other hand, the existing wire has obvious shortcomings in heat dissipation design, which depends on external cooling system or natural heat dissipation, and is difficult to effectively cope with the heat management challenge under high power density, resulting in high temperature rise of the equipment, affecting the insulation performance and system stability.

[0004] In addition, the traditional wire also has defects in insulation isolation, electromagnetic shielding and fire safety. The insulation layer is easy to age and damage, which causes short circuit risk. Electromagnetic interference problem is serious, which affects the normal operation of surrounding equipment. The fireproof performance is insufficient, which may cause fire accidents in extreme cases. SUMMARY

[0005] In order to solve the above problems existing in the prior art, the utility model provides a kind of long stator module is with aluminium transposition wire, adopts the spiral twisted arrangement of aluminium conductor wire core, built-in phase change cooling material, the insulation isolation layer of coating nanometer ceramic coating, set up metal shielding layer and fireproof layer and other measures, can comprehensively improve the comprehensive performance of wire, meet the urgent needs of modern long stator module to high performance wire.

[0006] In order to achieve the above purpose, the utility model provides a kind of long stator module is with aluminium transposition wire, including transposition wire body, the transposition wire body includes multiple aluminium conductor wire cores, the aluminium conductor wire core is twisted arrangement in spiral shape, and the adjacent aluminium conductor wire core is equipped with insulation isolation layer, the central region of the aluminium conductor wire core twisted formation is equipped with cooling channel, the cooling channel is filled with phase change cooling material, and the outside of the aluminium conductor wire core is wrapped with metal shielding layer.

[0007] As a further improvement of the utility model, in order to increase the contact area and friction force between the aluminum conductor cores, make the stranding structure more compact and stable, the cross section of the aluminum conductor core is a special-shaped structure, including at least one convex part and at least one recessed part, the convex part and the recessed part of the adjacent aluminum conductor cores are embedded with each other.

[0008] As a further improvement of the utility model, in order to further enhance the insulation effect of the insulation isolation layer, effectively prevent current leakage, improve the electrical insulation strength of the wire, the surface of the insulation isolation layer is coated with a layer of nano ceramic coating.

[0009] As a further improvement of the utility model, in order to provide reliable fire protection for the wire, the outer side of the metal shielding layer is provided with a fireproof layer, and the fireproof layer is made of inorganic fireproof material.

[0010] As a further improvement of the utility model, in order to be able to rapidly transmit the heat generated by the aluminum conductor core to the phase change cooling material in the cooling channel, the gap formed by the stranding of the aluminum conductor core is filled with heat-conducting silica gel.

[0011] As a further improvement of the utility model, in order to make the cooling channel better fit the heating part of the aluminum conductor core, prevent the aluminum conductor core from reacting with oxygen, moisture and the like in the external environment, the cooling channel is spirally distributed and consistent with the stranding direction of the aluminum conductor core, and the surface of the aluminum conductor core is subjected to oxidation treatment to form an aluminum oxide film.

[0012] When the current passes through the aluminum transposed conductor, the plurality of aluminum conductor cores arranged in a spiral stranding start to work. This stranding structure can effectively reduce the skin effect, make the current uniformly distributed in each aluminum conductor core, reduce the resistance and reduce the power loss. The insulation isolation layer between the adjacent aluminum conductor cores prevents current leakage between the adjacent cores by virtue of its good insulation performance, and ensures the stability of current transmission.

[0013] In the current transmission process, the aluminum conductor core will generate heat due to resistance. At this time, the cooling channel in the center area formed by the stranding of the aluminum conductor core plays a key role. The phase change cooling material filled in the channel absorbs heat and changes phase when the temperature rises, stores the heat and avoids the rapid rise of the temperature of the wire. At the same time, the heat-conducting silica gel filled in the stranding gap of the aluminum conductor core rapidly transmits the heat generated by the aluminum conductor core to the cooling channel, further improving the heat dissipation efficiency.

[0014] The cooling channel is spirally distributed and consistent with the twisting direction of the aluminum conductor core, which makes the cooling material more fully contact with the aluminum conductor core, and enhances the heat exchange effect. The dense aluminum oxide film formed on the surface of the aluminum conductor core through oxidation treatment not only has good corrosion resistance and can protect the aluminum conductor core from external environment erosion, but also has certain thermal conductivity, which helps to dissipate heat.

[0015] In addition, the metal shielding layer wrapped outside the aluminum conductor core can effectively shield external electromagnetic interference and ensure the stability of the current transmission signal. Meanwhile, the fireproof layer made of inorganic fireproof material outside the metal shielding layer can prevent the spread of flames and high temperature in extreme cases such as fire, and provides reliable fire protection for the wire.

[0016] The utility model has the advantages that:

[0017] Electrical performance

[0018] Enhanced insulation performance: an insulation separation layer is arranged between adjacent aluminum conductor cores, and a nanometer ceramic coating is coated on the surface of the insulation separation layer. The nanometer ceramic coating has excellent insulation performance, can effectively prevent current leakage between the aluminum conductor cores, improve the electrical insulation strength of the wire, ensure the safe and stable operation of electrical equipment, and reduce the probability of failure caused by insulation problems.

[0019] Reduced electromagnetic interference: the aluminum conductor core is wrapped with a metal shielding layer, which can shield external electromagnetic interference and prevent the electromagnetic field generated by the wire itself from interfering with external equipment, ensuring the stability and accuracy of signal transmission and improving the electromagnetic compatibility of the entire electrical system.

[0020] Heat dissipation performance

[0021] Efficient heat dissipation: the central region formed by the twisting of the aluminum conductor core is provided with a cooling channel, and the cooling channel is filled with phase change cooling material. The phase change cooling material will change phase when the temperature rises, absorbing a large amount of heat, thereby effectively reducing the temperature inside the wire and improving the heat dissipation efficiency of the wire, ensuring that the wire can work normally in high temperature environment and prolonging its service life.

[0022] Optimized heat dissipation path: the cooling channel is spirally distributed and consistent with the twisting direction of the aluminum conductor core, which makes the cooling channel more evenly distributed inside the wire and better fits the heating parts of the aluminum conductor core, improving the uniformity and effectiveness of heat dissipation. At the same time, the gap formed by the twisting of the aluminum conductor core is filled with thermal conductive silicone, which has good thermal conductivity and can quickly conduct the heat generated by the aluminum conductor core to the cooling channel, further optimizing the heat dissipation path and improving the overall heat dissipation capacity.

[0023] Mechanical performance

[0024] Improve structural stability: the aluminum conductor core is arranged in a spiral twisted structure, which makes the whole conductor more flexible and resistant to stretching, can withstand certain mechanical stress and deformation, is not easy to break, improves the mechanical strength and structural stability of the conductor, and is convenient to install and use.

[0025] Enhance the embedding effect: the cross section of the aluminum conductor core is a special structure, including at least one convex part and at least one concave part, and the convex part and the concave part of the adjacent aluminum conductor core are matched and embedded. This embedding structure increases the contact area and friction between the aluminum conductor cores, making the twisting more compact, further improving the overall mechanical properties of the conductor, and preventing loosening during use.

[0026] Safety performance

[0027] Fireproof and flame retardant: the outer side of the metal shielding layer is provided with a fireproof layer made of inorganic fireproof material. The inorganic fireproof material has good fireproof and flame retardant properties, which can effectively prevent the spread of fire when encountering fire, provide additional safety protection for electrical equipment and personnel, and reduce the loss caused by fire.

[0028] Antioxidant protection: the surface of the aluminum conductor core is treated with oxidation to form a dense aluminum oxide film. The aluminum oxide film has good chemical stability and antioxidant properties, which can prevent the aluminum conductor core from reacting with oxygen, moisture and other substances in the surrounding environment, slow down the oxidation and corrosion rate of the aluminum conductor core, prolong the service life of the conductor, and improve the reliability and safety of the conductor. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order for those skilled in the art to better understand the technical solutions in the present application, the present application will be further described below with reference to the accompanying drawings:

[0030] Fig. 1 The structural diagram of the present application.

[0031] Fig. 2 The structural exploded view of the present application.

[0032] Among them, 1 aluminum conductor core, 2 insulation isolation layer, 3 cooling channel, 4 phase change cooling material, 5 metal shielding layer, 6 convex part, 7 concave part, 8 nanometer ceramic coating (8), 9 fireproof layer, 10 aluminum oxide film. DETAILED DESCRIPTION

[0033] In order for those skilled in the art to better understand the technical solutions in the present application, the present application will be further described below with reference to the accompanying drawings: Figs. 1-2Further described, the following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0034] As shown in Figs. 1-2 An aluminum transposed conductor for long-stator module, including transposed conductor body, the transposed conductor body includes multiple aluminum conductor cores 1, the aluminum conductor core 1 is spirally stranded arrangement, and the adjacent aluminum conductor core 1 between is equipped with insulating isolation layer 2, the center area of the aluminum conductor core 1 stranded is equipped with cooling channel 3, the cooling channel 3 is filled with phase change cooling material 4, the outside of the aluminum conductor core 1 is wrapped with metal shielding layer 5.

[0035] The cross section of the aluminum conductor core 1 is a special-shaped structure, including at least one convex part 6 and at least one recessed part 7, the convex part 6 and the recessed part 7 of adjacent aluminum conductor core 1 are mutually matched and embedded.

[0036] The surface of the insulating isolation layer 2 is coated with a layer of nano ceramic coating 8.

[0037] The outside of the metal shielding layer 5 is provided with a fireproof layer 9, and the fireproof layer 9 is made of inorganic fireproof material.

[0038] The gap formed by the aluminum conductor core 1 is filled with heat-conducting silica gel.

[0039] The cooling channel 3 is spirally distributed, and the direction of the cooling channel 3 is consistent with the stranded direction of the aluminum conductor core 1, and the surface of the aluminum conductor core 1 is subjected to oxidation treatment to form an aluminum oxide film 10.

[0040] When the current passes through the aluminum transposed conductor, the multiple aluminum conductor cores 1 spirally stranded arrangement start to work. This stranded structure can effectively reduce the skin effect, make the current uniformly distributed in each aluminum conductor core 1, reduce the resistance and reduce the power loss. The insulating isolation layer 2 between the adjacent aluminum conductor cores 1 prevents the current from leaking between the adjacent cores by virtue of its good insulation performance, and ensures the stability of current transmission.

[0041] In the current transmission process, the aluminum conductor core 1 will generate heat due to resistance. At this time, the cooling channel 3 in the center area of the aluminum conductor core 1 plays a key role. The phase change cooling material 4 filled in the channel absorbs heat and changes phase when the temperature rises, stores the heat and avoids the rapid rise of the temperature of the conductor. At the same time, the heat-conducting silica gel filled in the gap between the aluminum conductor cores 1 rapidly transfers the heat generated by the aluminum conductor core 1 to the cooling channel 3, further improving the heat dissipation efficiency.

[0042] The cooling channel 3 is distributed in a spiral shape and is consistent with the twisting direction of the aluminum conductor core 1, which makes the cooling material more fully contact with the aluminum conductor core 1 and enhances the heat exchange effect. The dense aluminum oxide film 10 formed on the surface of the aluminum conductor core 1 by oxidation treatment not only has good corrosion resistance and can protect the aluminum conductor core 1 from being eroded by the external environment, but also has certain thermal conductivity, which helps to dissipate heat.

[0043] In addition, the metal shielding layer 5 wrapped outside the aluminum conductor core 1 can effectively shield external electromagnetic interference and ensure the stability of the current transmission signal. Meanwhile, the fireproof layer 9 made of inorganic fireproof material outside the metal shielding layer 5 can prevent the spread of fire and high temperature in extreme cases such as fire, thereby providing reliable fire protection for the wire.

[0044] The utility model is not limited to the above-mentioned embodiments, on the basis of the technical scheme disclosed in the utility model, according to the disclosed technical content, the skilled in the art can make some substitutions and deformations to some technical features without creative labor, and these substitutions and deformations are within the protection scope of the utility model.

Claims

1. An aluminum transposed conductor for a long stator module, comprising a transposed conductor body, characterized by, The transposed conductor body comprises a plurality of aluminum conductor cores (1), the aluminum conductor cores (1) are arranged in a spiral twisted manner, and an insulating isolation layer (2) is arranged between adjacent aluminum conductor cores (1), a cooling channel (3) is arranged in a central region formed by the twisted aluminum conductor cores (1), the cooling channel (3) is filled with a phase change cooling material (4), and an outer side of the aluminum conductor core (1) is wrapped with a metal shielding layer (5).

2. The aluminum transposed conductor wire for a long stator module according to claim 1, characterized by A cross section of the aluminum conductor core (1) is a special-shaped structure, and comprises at least one protruding part (6) and at least one recessed part (7), the protruding part (6) and the recessed part (7) of adjacent aluminum conductor cores (1) are matched and embedded with each other.

3. The aluminum transposed conductor wire for long stator module according to claim 1, characterized by, A surface of the insulating isolation layer (2) is coated with a layer of nano ceramic coating (8).

4. The aluminum transposed conductor of claim 1, wherein An outer side of the metal shielding layer (5) is provided with a fireproof layer (9), and the fireproof layer (9) is made of inorganic fireproof material.

5. The aluminum transposed conductor of claim 1, wherein Thermally conductive silica gel is filled in gaps formed by the twisted aluminum conductor cores (1).

6. The aluminum transposed conductor of claim 1, wherein The cooling channel (3) is distributed in a spiral manner and is consistent with a twisting direction of the aluminum conductor core (1), a surface of the aluminum conductor core (1) is subjected to oxidation treatment to form an aluminum oxide film (10).

Images