High PDIV wedge-shaped electromagnetic wire for vehicle-mounted power assembly

Abstract

The utility model discloses a high PDIV wedge-shaped electromagnetic wire for a vehicle-mounted power assembly, and relates to the technical field of electromagnetic wires, the high PDIV wedge-shaped electromagnetic wire comprises a conductor base material and a pressure-resistant mechanism, the conductor base material is arranged in a wedge shape, a bonding mechanism is arranged outside the conductor base material, an insulating mechanism is arranged outside the bonding mechanism, and a wear-resistant mechanism is arranged outside the insulating mechanism. The pressure-resistant mechanism is arranged outside the wear-resistant mechanism, the pressure-resistant mechanism comprises a strip-shaped bulge, and the strip-shaped bulge is arranged outside the wear-resistant mechanism and is obliquely arranged. According to the utility model, through the protruding arrangement of the strip-shaped protrusions, when an external object extrudes the electromagnetic wire, the external object contacts with the strip-shaped protrusions firstly, so that the external object cannot directly contact with the electromagnetic wire main body, and meanwhile, the spiral strip-shaped protrusions enable part of the strip-shaped protrusions to be dispersed with extrusion force when being extruded by the external object, so that the phenomenon that the electromagnetic wire is pressed and deformed is avoided; and meanwhile, under the matching of the wedge-shaped conductor base material, the whole electromagnetic wire is more voltage-resistant, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic wires, in particular to a high-PDIV wedge-shaped electromagnetic wire for vehicle power assemblies. Background Art

[0002] Vehicle power assemblies play a crucial role in improving their electrification level. In order to increase the PDIV of the electromagnetic wires used in power assemblies, the insulation effect of the electromagnetic wires is enhanced, that is, the minimum voltage value at which partial discharge phenomena start to appear can be gradually increased during the process of increasing the voltage applied to the motor insulation system.

[0003] Most of the current vehicle electromagnetic wires are circularly arranged. When the electromagnetic wires are squeezed by external objects, the external squeezing objects will directly contact the electromagnetic wires, resulting in deformation of the electromagnetic wires. Prolonged squeezing will cause damage to the electromagnetic wires, thus shortening the service life of the electromagnetic wires. For this reason, we propose a high-PDIV wedge-shaped electromagnetic wire for vehicle power assemblies. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a high-PDIV wedge-shaped electromagnetic wire for vehicle power assemblies to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: A high-PDIV wedge-shaped electromagnetic wire for vehicle power assemblies, comprising:

[0006] A conductor substrate, the conductor substrate is wedge-shaped, an adhesion mechanism is arranged outside the conductor substrate, an insulation mechanism is arranged outside the adhesion mechanism, and a wear-resistant mechanism is arranged outside the insulation mechanism;

[0007] A voltage withstand mechanism, the voltage withstand mechanism is arranged outside the wear-resistant mechanism, the voltage withstand mechanism includes strip-shaped protrusions, the strip-shaped protrusions are arranged outside the wear-resistant mechanism, and the strip-shaped protrusions are inclined.

[0008] Preferably, the conductor substrate is a copper rod, the total content of copper and silver in the conductor substrate is greater than 99.80%, the resistivity of the conductor substrate is less than 0.17200 Ω / m, and the error of the surface uniformity of the conductor substrate is ±0.005 mm.

[0009] Preferably, the adhesion mechanism includes an adhesion layer, the adhesion layer is arranged on the outer wall of the conductor substrate, and the material of the adhesion layer is modified polyamide-imide.

[0010] Preferably, the insulation mechanism includes an insulation layer, the insulation layer is arranged on the outer wall of the adhesion layer, and the material of the insulation layer is aromatic polyimide.

[0011] Preferably, the wear-resistant mechanism includes a wear-resistant layer disposed on the outer wall of the insulating layer, and the material of the wear-resistant layer is modified polyamideimide.

[0012] Preferably, the strip-shaped protrusions are arranged in a spiral shape and are disposed on the outer wall of the wear-resistant layer.

[0013] The technical effects and advantages of the present utility model:

[0014] By using the arrangement of the strip-shaped protrusions, when an external object presses the electromagnetic wire, it will first contact the protruding strip-shaped protrusions, so that the external object cannot directly contact the main body of the electromagnetic wire. At the same time, the spiral strip-shaped protrusions enable some strip-shaped protrusions to disperse the extrusion force when being pressed by an external object, avoiding the phenomenon that the electromagnetic wire is deformed by pressure. At the same time, with the cooperation of the wedge-shaped conductor substrate, the overall electromagnetic wire is more voltage-resistant and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic three-dimensional structure diagram of the present utility model.

[0016] Figure 2 is a schematic front cross-sectional structure diagram of the conductor substrate of the present utility model.

[0017] In the figure: 101, conductor substrate; 201, adhesive layer; 301, insulating layer; 401, wear-resistant layer; 501, strip-shaped protrusion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] The present utility model provides as Figure 1-2A high-PDIV wedge-shaped electromagnetic wire for a vehicle powertrain, as shown, includes a conductor substrate 101 and a voltage-resistant mechanism. The conductor substrate 101 is wedge-shaped. An adhesion mechanism is provided outside the conductor substrate 101, an insulation mechanism is provided outside the adhesion mechanism, and a wear-resistant mechanism is provided outside the insulation mechanism. The conductor substrate 101 is a copper rod. The sum of the copper content and the silver content in the conductor substrate 101 is greater than 99.80%. Under the condition of 20 degrees Celsius, the resistivity of the conductor substrate 101 is less than 0.17200 Ω / m. The error of the surface uniformity of the conductor substrate 101 is ±0.005 mm. When the conductor substrate 101 is processed, high-precision flat rollers and vertical rollers are used, and the thickness uniformity is less than 0.01 mm. Adjust the levelness of the rollers to make it in a wedge shape, and at the same time reduce the rolling speed to avoid fluctuations in the inclined plane size of the conductor substrate 101 caused by uneven stress during the processing of the conductor substrate 101. In this way, a high-quality conductor substrate 101 with a dimensional accuracy of ±0.005 mm can be obtained. Through two vertical rollings, the conductor substrate 101 presents a regular conductor, effectively controlling the minor deformation and inclination problems of the wire shape during the rolling process. After high-pressure spray cleaning and isometric polishing, a conductor substrate 101 with a clean and bright surface is obtained, effectively avoiding the problem of copper powder adhesion. The adhesion mechanism includes an adhesion layer 201, and the adhesion layer 201 is provided on the outer wall of the conductor substrate 101. The insulation mechanism includes an insulation layer 301, and the insulation layer 301 is provided on the outer wall of the adhesion layer 201. The wear-resistant mechanism includes a wear-resistant layer 401, and the wear-resistant layer 401 is provided on the outer wall of the insulation layer 301. Through the setting of the adhesion layer 201, the adhesion between the insulation layer 301 and the conductor substrate 101 can be increased. At the same time, through the setting of the insulation layer 301, the starting point of the PDIV can be increased vertically. To improve the effect, during the preparation process of the insulation layer 301, the temperature of the evaporation area needs to be increased, and the number of painting passes needs to be increased, so that the insulation layer 301 can quickly level, fully evaporate, and quickly enter the viscous flow state, so as to achieve a more complete curing effect.

[0020] In a preferred embodiment, the voltage-resistant mechanism is provided outside the wear-resistant mechanism. The voltage-resistant mechanism includes a strip-shaped protrusion 501. The strip-shaped protrusion 501 is provided outside the wear-resistant mechanism. The strip-shaped protrusion 501 is inclined and spirally arranged. The strip-shaped protrusion 501 is provided on the outer wall of the wear-resistant layer 401. Through the protruding setting of the strip-shaped protrusion 501, when an external object presses the electromagnetic wire, it will first contact the protruding strip-shaped protrusion 501, so that the external object cannot directly contact the main body of the electromagnetic wire. At the same time, the spiral strip-shaped protrusion 501 enables some strip-shaped protrusions 501 to disperse the extrusion force when being pressed by an external object, avoiding the phenomenon that the electromagnetic wire is deformed by pressing. At the same time, with the cooperation of the wedge-shaped conductor substrate 101, the overall electromagnetic wire is more voltage-resistant and has a longer service life.

[0021] Among them, the material of the adhesive layer 201 is modified polyamideimide. During the modification process of the modified polyamideimide, flexible groups, organosilicon groups or alicyclic structures are introduced into the main chain or side chain, etc. This can change the intermolecular force of the polymer. For example, introducing side groups may destroy the regularity of the molecules, reduce the packing density, thereby improving the solubility and transparency of the polymer. This change may make the modified polyimide easier to form a good interfacial contact with the insulating layer 301, thus improving the adhesion. At the same time, some specific functional groups can also be introduced during the modification process. These functional groups can form chemical bonding or strong physical adsorption with the insulating layer 301, thereby significantly enhancing the adhesion.

[0022] Among them, the material of the insulating layer 301 is aromatic polyimide. Aromatic polyimide is derived from aromatic dianhydride and diamine, and its molecular structure contains a highly stable and rigid heterocyclic system. This structural feature makes aromatic polyimide have excellent electrical properties. The dielectric constant of aromatic polyimide is about 4.0 at 10 3 Hz, and the dielectric loss is extremely low, only 0.004 - 0.007. These values indicate that aromatic polyimide has low energy loss and excellent insulation characteristics in an electric field. Aromatic polyimide has excellent high-temperature resistance, and the long-term use temperature range can reach -200 - 300 °C, and some can even maintain stability at high temperatures above 400 °C. This high-temperature resistance ensures that aromatic polyimide can still maintain its electrical insulation performance under high-temperature conditions. Aromatic polyimide has excellent chemical stability and can resist the erosion of various chemical substances. This stability further ensures that it can maintain stable electrical insulation performance in various complex environments.

[0023] Among them, the material of the wear-resistant layer 401 is modified polyamideimide. Polyamideimide itself is a high-molecular compound formed by the cross-linking reaction of amide and imide monomers. When modified, such as introducing wear-resistant fillers such as MoS2, the wear-resistant performance of the material can be significantly enhanced.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high PDIV wedge-shaped electromagnetic wire for vehicle powertrain, characterized in that, Comprising: A conductor substrate (101), the conductor substrate (101) being wedge-shaped, an adhesive mechanism being provided outside the conductor substrate (101), an insulating mechanism being provided outside the adhesive mechanism, and a wear-resistant mechanism being provided outside the insulating mechanism; A voltage-resistant mechanism, the voltage-resistant mechanism being provided outside the wear-resistant mechanism, the voltage-resistant mechanism including a strip-shaped protrusion (501), the strip-shaped protrusion (501) being provided outside the wear-resistant mechanism, and the strip-shaped protrusion (501) being inclined.

2. The high-PDIV wedge-shaped electromagnetic wire for a vehicle powertrain according to claim 1, wherein The conductor substrate (101) is a copper rod, the resistivity of the conductor substrate (101) being less than 0.17200 Ω / m, and the error of the surface uniformity of the conductor substrate (101) being ±0.005 mm.

3. A high-PDIV wedge-shaped electromagnetic wire for a vehicle powertrain according to claim 1, characterized in that, The adhesive mechanism includes an adhesive layer (201), the adhesive layer (201) being provided on the outer wall of the conductor substrate (101), and the material of the adhesive layer (201) being modified polyamideimide.

4. A high-PDIV wedge-shaped electromagnetic wire for a vehicle powertrain according to claim 3, characterized in that, The insulating mechanism includes an insulating layer (301), the insulating layer (301) being provided on the outer wall of the adhesive layer (201), and the material of the insulating layer (301) being aromatic polyimide.

5. A high PDIV wedge-shaped electromagnetic wire for a vehicle powertrain according to claim 4, characterized in that, The wear-resistant mechanism includes a wear-resistant layer (401), the wear-resistant layer (401) being provided on the outer wall of the insulating layer (301), and the material of the wear-resistant layer (401) being modified polyamideimide.

6. The high-PDIV wedge-shaped magnet wire for vehicle powertrain according to claim 5, characterized in that, The strip-shaped protrusion (501) is helically arranged, and the strip-shaped protrusion (501) is provided on the outer wall of the wear-resistant layer (401).

Images