Enameled copper flat wire with good insulativity for new energy automobile driving motor

Abstract

The utility model discloses a new energy automobile drive motor enameled copper flat wire with good insulativity, and relates to the technical field of enameled copper flat wires, the enameled copper flat wire comprises a copper conductor, the outer side of the copper conductor is provided with an insulating layer used for improving the insulating property, the outer side of the insulating layer is spirally surrounded by a heat dissipation layer used for heat dissipation protection, and the heat dissipation layer is provided with an insulating layer used for heat dissipation protection. The enameled copper flat wire for the new energy automobile driving motor solves the problems that an existing enameled copper flat wire for a new energy automobile driving motor only uses carbon fibers to achieve insulation, the effect is poor, and motor winding operation is inconvenient due to the fact that the enameled copper flat wire is designed to be thick, and through the arrangement of the insulating layer and the paint layer, the copper conductor is arranged on the innermost side, so that the insulating effect is good, and the service life of the enameled copper flat wire is prolonged. The insulating layer achieves inner side insulation of the copper conductor, the paint layer achieves outer side insulation of the copper conductor, the insulating layer and the paint layer are matched to improve the insulating performance of the enameled copper flat wire, the number of existing layers is reduced through the arrangement of the four layers of the enameled copper flat wire, and the extensibility of the heat dissipation layer is good.

Description

Technical Field

[0001] The utility model relates to the technical field of enameled copper flat wires, in particular to an enameled copper flat wire for a new energy vehicle drive motor with good insulation. Background Art

[0002] Enameled copper flat wire is an important material in new energy vehicle drive motors, and its main function is to serve as a conductive medium for motor windings.

[0003] An enameled copper flat wire with publication number CN217361169U comprises a copper core layer, a signal shielding layer, a waterproof layer, a wear-resistant layer, a reinforced heat-conducting component and an anti-bending mechanism, wherein the signal shielding layer is wrapped on the outer wall of the copper core layer, a hollow cavity is formed between the signal shielding layer and the waterproof layer, the wear-resistant layer is wrapped on the outer side of the waterproof layer, the reinforced heat-conducting component is penetrated between the waterproof layer and the wear-resistant layer and one end extends into the hollow cavity, the anti-bending mechanism is fixedly installed in the hollow cavity and is annularly distributed on the signal shielding layer, and the signal shielding layer is specifically made of carbon fiber, with good heat dissipation effect and strong functionality. When the copper core layer is bent, there is a large buffer space to avoid excessive damage to the copper core layer due to bending, and it can release flame-retardant gas when the external temperature is too high, thereby achieving better self-protection effect. However, this enameled copper flat wire for driving motor of new energy vehicle only uses carbon fiber for insulation, with poor effect, and the thick design of this wire is not convenient for motor winding operation.

[0004] In view of the above problems, an enameled copper flat wire with good insulation for a new energy vehicle drive motor is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an enameled copper flat wire for a new energy vehicle drive motor with good insulation, which solves the problem that the existing enameled copper flat wire for a new energy vehicle drive motor in the background technology only uses carbon fiber to achieve insulation, the effect is poor, and the wire is designed to be thick and inconvenient for motor winding operation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an enameled copper flat wire for a new energy vehicle drive motor with good insulation, comprising a copper conductor, an insulating layer for improving insulation performance is arranged on the outside of the copper conductor, a heat dissipation layer for heat dissipation protection is arranged in a spiral surround on the outside of the insulating layer, a paint layer is brushed on the outer end of the heat dissipation layer, the insulating layer is made of high-quality polymer insulating material, the paint layer is arranged at the outermost periphery, the thickness of the paint layer is adjusted by customization, and the paint layer is made of a combination of epoxy and silicone rubber materials using a brush coating process.

[0007] Preferably, a plurality of groups of copper wires are fixedly arranged inside the copper conductor.

[0008] Preferably, the insulating layer surrounds the copper conductor.

[0009] Preferably, the heat dissipation layer includes heat dissipation strips arranged around the outer circle of the insulation layer.

[0010] Preferably, the heat dissipation strip is spirally bonded to the insulation layer.

[0011] Preferably, a heat dissipation groove is provided on the outer side of the heat dissipation strip.

[0012] Preferably, heat dissipation colloid is filled between the heat dissipation strips.

[0013] Preferably, the paint layer is used for waterproofing, moisture-proofing, heat-resistance and insulation.

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

[0015] 1. The utility model provides an enameled copper flat wire for a new energy vehicle drive motor with good insulation. The copper conductor is arranged on the innermost side through the arrangement of an insulating layer and a paint layer. The insulating layer realizes the inner insulation of the copper conductor, and the paint layer realizes the outer insulation of the copper conductor. The cooperation of the insulating layer and the paint layer can improve the insulation performance of the enameled copper flat wire. The double-layer insulation solves the problem that the existing enameled copper flat wire for a new energy vehicle drive motor only uses carbon fiber to achieve insulation, and the effect is poor.

[0016] 2. The utility model provides an enameled copper flat wire with good insulation for new energy vehicle drive motors. The four-layer arrangement of the enameled copper flat wire reduces the existing number of layers, and the heat dissipation layer has better extensibility, which solves the problem that the existing enameled copper flat wire for new energy vehicle drive motors is designed to be thick and inconvenient for motor winding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall side view structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the layer-by-layer splitting structure of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the structure at point A.

[0021] In the figure: 1, copper conductor; 11, copper wire; 2, insulation layer; 3, heat dissipation layer; 31, heat dissipation strip; 311, heat dissipation slot; 32, heat dissipation colloid; 4, paint layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0024] Combination Figure 1 The utility model discloses an enameled copper flat wire with good insulation for a new energy vehicle driving motor, comprising a copper conductor 1, an insulating layer 2 for improving insulation performance is arranged on the outside of the copper conductor 1, a heat dissipation layer 3 for heat dissipation protection is arranged on the outside of the insulating layer 2 in a spiral, a paint layer 4 is brushed on the outer end of the heat dissipation layer 3, the insulating layer 2 is made of high-quality polymer insulating material, the paint layer 4 is arranged on the outermost periphery, the thickness of the paint layer 4 is adjusted by customization, the paint layer 4 is made of a brush coating process, and is made of a composite material of epoxy and silicone rubber.

[0025] Specifically, the copper conductor 1 is arranged at the innermost side, the insulating layer 2 realizes the inner insulation of the copper conductor 1, and the varnish layer 4 realizes the outer insulation of the copper conductor 1. The insulating layer 2 and the varnish layer 4 cooperate to improve the insulation performance of the enameled copper flat wire, and the heat dissipation layer 3 improves the heat resistance of the enameled copper flat wire.

[0026] The utility model is further described below in conjunction with embodiments.

[0027] Embodiment 1:

[0028] Combination Figure 2 and Figure 3 A plurality of groups of copper wires 11 are fixedly arranged inside the copper conductor 1 , and the enameled copper rectangular wire is mainly conductive through the copper wires 11 .

[0029] The insulating layer 2 surrounds the copper conductor 1 , and the high-molecular polymer high-quality insulating material of the insulating layer 2 is responsible for isolating and protecting the copper conductor 1 .

[0030] Embodiment 2:

[0031] Combination Figure 3 and Figure 4 The heat dissipation layer 3 includes a heat dissipation strip 31 arranged around the outer circle of the insulating layer 2. The heat dissipation strip 31 is made of non-metallic material graphene, which effectively helps the wire to dissipate the heat generated during operation.

[0032] The heat dissipation strip 31 is spirally bonded to the insulating layer 2. The spiral setting of the heat dissipation strip 31 increases the heat dissipation bonding area of ​​the heat dissipation strip 31, improves the heat dissipation capacity of the wire, and extends the service life of the wire. At the same time, the heat distribution is more uniform, which can reduce the local temperature and prevent the copper conductor 1 from being damaged due to overheating.

[0033] A heat dissipation groove 311 is provided on the outer side of the heat dissipation bar 31 . The heat dissipation groove 311 allows a gap to exist between the heat dissipation bar 31 and the lacquer layer 4 , thereby increasing the heat dissipation performance and facilitating the bending of the enameled copper flat wire.

[0034] The heat dissipation strips 31 are filled with heat dissipation colloid 32 , which has good thermal conductivity and adhesive properties, and can effectively connect the heat dissipation layer 3 and the cable conductor to help the cable dissipate the heat generated during operation.

[0035] The paint layer 4 is used for waterproofing, moisture-proofing, heat-resistance and insulation. The thinner the paint layer 4 is, the better the heat dissipation performance of the wire. However, a paint layer 4 that is too thin may cause the wire to be susceptible to mechanical damage and corrosion. Therefore, the thickness of the paint layer 4 will be selected according to the specifications of the wire, the working voltage, the current load and other factors. At the same time, the paint on the surface of the paint layer 4 is brushed so that it can evenly cover the epoxy and silicone rubber combination material. The epoxy in the internal material of the paint layer 4 has excellent heat resistance, corrosion resistance and electrical insulation performance, and is suitable for high-voltage motor windings and applications in special environments. Silicone rubber has good heat resistance, cold resistance and electrical insulation performance, and is suitable for applications in special environments such as high temperature and low temperature, providing good insulation protection for the enameled copper flat wire.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An enameled copper rectangular wire for a new energy vehicle driving motor with good insulation, comprising a copper conductor (1), characterized in that: An insulating layer (2) for improving insulation performance is arranged on the outer side of the copper conductor (1); a heat dissipation layer (3) for heat dissipation protection is arranged in a spiral pattern on the outer side of the insulating layer (2); and a paint layer (4) is applied on the outer end of the heat dissipation layer (3); The insulating layer (2) is made of a high-quality polymer insulating material, the paint layer (4) is arranged at the outermost portion, the paint layer (4) is made of a composite material of epoxy and silicone rubber by adopting a brush coating process and adjusting the thickness of the paint layer (4) by customization.

2. The enameled rectangular copper wire with good insulation for a new energy vehicle drive motor according to claim 1, characterized in that: A plurality of groups of copper wires (11) are fixedly arranged inside the copper conductor (1).

3. The enameled rectangular copper wire with good insulation for a new energy vehicle drive motor according to claim 1, characterized in that: The insulating layer (2) surrounds the copper conductor (1).

4. The enameled rectangular copper wire with good insulation for a new energy vehicle driving motor according to claim 1, characterized in that: The heat dissipation layer (3) comprises heat dissipation strips (31) arranged around the outer circle of the insulation layer (2).

5. The enameled rectangular copper wire with good insulation for a new energy vehicle driving motor according to claim 4, characterized in that: The heat dissipation strip (31) is spirally bonded to the insulation layer (2).

6. The enameled rectangular copper wire with good insulation for a new energy vehicle driving motor according to claim 4, characterized in that: A heat dissipation groove (311) is provided on the outer side of the heat dissipation strip (31).

7. The enameled rectangular copper wire with good insulation for a new energy vehicle driving motor according to claim 4, characterized in that: Heat dissipation colloid (32) is filled between the heat dissipation strips (31).

8. The enameled rectangular copper wire with good insulation for a new energy vehicle driving motor according to claim 1, characterized in that: The paint layer (4) is used for waterproofing, moisture-proofing, heat resistance and insulation.

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