PROCESSING TECHNOLOGY OF BUSBAR FOR NEW ENERGY AUTOMOBILE

Abstract

A processing technology of a busbar for a new energy automobile comprises the following steps: first step: punching a raw material blank of a busbar to obtain a busbar base material; second step: spraying high-temperature-resistant insulating paint on part or whole of an outer surface of the busbar base material obtained in the first step; and third step: drying to obtain a busbar. The busbar of the present invention has simple processing technology.

Claims

1. A processing technology of a busbar for a new energy automobile, characterized by comprising the following steps: first step: punching a raw material blank of a busbar to obtain a busbar base material; second step: spraying high-temperature-resistant insulating paint on part or whole of an outer surface of the busbar base material obtained in the first step; and third step: drying to obtain a busbar; a raw material formula of the high-temperature-resistant insulating paint comprises the following materials in mass percent: TABLE-US-00004 high aluminum cement 5~15%; attapulgite clay 5~7%; porcelain clay 5~7%; titanium dioxide 2~5%; graphene nano flakes 2~6%; boron phosphate 2~6%; n-methylol acrylamide 2~5%; aluminum dihydrogen phosphate 3~9%; polydimethylsiloxane 3~7%; methylphenyl silicone resin 3~7%; vinyl silicone oil 3~7%; polyvinyl acetate emulsion 10~23%; deionized water balance.

2. The processing technology of the busbar for the new energy automobile according to claim 1, characterized in that: the thickness of the busbar base material is less than or equal to 12.5 mm; the cross-sectional area of the busbar base material is less than or equal to 38 cm.sup.3; the tensile strength, b of the busbar base material is greater than or equal to 200 Mpa; the yield strength, p0.2 of the busbar base material is greater than or equal to 150 Mpa; and the elongation, 5 of the busbar base material is greater than or equal to 15%.

3. The processing technology of the busbar for the new energy automobile according to claim 2, characterized in that: the density of the busbar base material is 2.7 g/cm.sup.3.

4. The processing technology of the busbar for the new energy automobile according to claim 2, characterized in that: the thermal conductivity of the busbar base material at 25 C. is 218 W/(m.Math.K).

5. The processing technology of the busbar for the new energy automobile according to claim 2, characterized in that: the conductivity of the busbar is greater than or equal to 57% IACS.

6. The processing technology of the busbar for the new energy automobile according to claim 6, characterized in that: the solid content in the raw material formula of the high-temperature-resistant insulating paint is less than or equal to 60%.

Description

DETAILED DESCRIPTION

[0016] The present invention is further described below in combination with embodiments:

Embodiment 1: A Processing Technology of a Busbar for a New Energy Automobile

[0017] The processing technology of the busbar for the new energy automobile comprises the following steps:

first step: punching a raw material blank of a busbar to obtain a busbar base material;
second step: spraying high-temperature-resistant insulating paint on part or whole of an outer surface of the busbar base material obtained in the first step; and
third step: drying to obtain a busbar.

[0018] The thickness of the busbar base material is 12.5 mm; the cross-sectional area of the busbar base material is 38 cm.sup.3; the tensile strength, b of the busbar base material is 200 Mpa; the yield strength, p0.2 of the busbar base material is greater than or equal to 150 Mpa; and the elongation, 5 of the busbar base material is 15%. The density of the busbar base material is 2.7 g/cm.sup.3. The thermal conductivity of the busbar base material at 25 C. is 218 W/(m.Math.K). The conductivity of the busbar base material is 57% IACS.

[0019] The busbar base material is made of aluminum. The aluminum contains 0.3%-0.4% mass fraction of Si, 0.6%-0.7% mass fraction of Fe, a total of less than or equal to 1 of other impurities, and the balance of aluminum.

[0020] A raw material formula of the high-temperature-resistant insulating paint comprises the following materials in mass percent:

TABLE-US-00002 high aluminum cement 14%; attapulgite clay 7%; porcelain clay 5%; titanium dioxide 3%; graphene nano flakes 3%; boron phosphate 6%; n-methylol acrylamide 5%; aluminum dihydrogen phosphate 4%; polydimethylsiloxane 5%; methylphenyl silicone resin 7%; vinyl silicone oil 3%; polyvinyl acetate emulsion 12%; deionized water 26%.

[0021] The organosilicon leveling agent comprises silicone oil, polydimethylsiloxane, polyether and polyester modified organic siloxane, alkyl modified organic siloxane and terminal group modified organic silicon. In the present embodiment, specifically, the silicone oil is selected.

Embodiment 2: A Processing Technology of a Busbar for a New Energy Automobile

[0022] The processing technology of the busbar for the new energy automobile comprises the following steps:

first step: punching a raw material blank of a busbar to obtain a busbar base material;
second step: spraying high-temperature-resistant insulating paint on part or whole of an outer surface of the busbar base material obtained in the first step; and
third step: drying to obtain a busbar.

[0023] The thickness of the busbar base material is 12.5 mm; the cross-sectional area of the busbar base material is 38 cm.sup.3; the tensile strength, b of the busbar base material is 200 Mpa; the yield strength, p0.2 of the busbar base material is greater than or equal to 150 Mpa; and the elongation, 5 of the busbar base material is 15%. The density of the busbar base material is 2.7 g/cm.sup.3. The thermal conductivity of the busbar base material at 25 C. is 218 W/(m.Math.K). The conductivity of the busbar base material is 57% IACS.

[0024] The busbar base material is made of aluminum. The aluminum contains 0.3%-0.4% mass fraction of Si, 0.6%-0.7% mass fraction of Fe, a total of less than or equal to 1 of other impurities, and the balance of aluminum.

[0025] A raw material formula of the high-temperature-resistant insulating paint comprises the following materials in mass percent:

TABLE-US-00003 high aluminum cement 6%; attapulgite clay 5%; porcelain clay 6%; titanium dioxide 5%; graphene nano flakes 5%; boron phosphate 4%; n-methylol acrylamide 3%; aluminum dihydrogen phosphate 8%; polydimethylsiloxane 4%; methylphenyl silicone resin 6%; vinyl silicone oil 3%; polyvinyl acetate emulsion 21%; deionized water 24%.

[0026] The organosilicon leveling agent is a mixture of the polydimethylsiloxane and the polyether and polyester modified organic siloxane in the mass ratio of 1:1.

[0027] The above-mentioned embodiments only aim to explain the technical conception and feature of the present invention, and aim to make those skilled in the art know the content of the present invention and implement same accordingly, which cannot limit the protection scope of the present invention. Any equivalent change or modification made according to the spirit substance of the present invention shall be covered within the protection scope of the present invention.