Busbar with insulation coating for new energy automobile

Abstract

A busbar with an insulation coating for a new energy automobile comprises a busbar body and a high-temperature-resistant insulating layer sprayed on the busbar body, and a raw material formula of the high-temperature-resistant insulating layer comprises 312% of high aluminum cement, 39% of attapulgite clay, 39% of porcelain clay, 25% of titanium dioxide, 26% of multi-walled carbon nanotubes, 26% of boron phosphate, 25% of n-methylol acrylamide, 39% of aluminum dihydrogen phosphate, 37% of tri-block copolymer styrene-butzdiene-methyl methacrylate, 37% of methylphenyl silicone resin, 37% of vinyl silicone oil, 1019% of polyvinyl acetate emulsion and balance of deionized water. The busbar of the present invention has good high temperature resistant performance and insulating performance.

Claims

1. A busbar comprising: a busbar body and an insulating layer sprayed on the busbar body, wherein a raw material formula of the insulating layer comprises following materials in mass percent: high aluminum cement of 3.sup.12%; attapulgite clay of 3.sup.9%; porcelain clay of 3.sup.9%; titanium dioxide of 2.sup.5%; multi-walled carbon nanotubes of 2.sup.6%; boron phosphate of 2.sup.6%; n-methylol acrylamide of 2.sup.5%; aluminum dihydrogen phosphate 3.sup.9%; tri-block copolymer styrene-butzdiene-methyl methacrylate of 3.sup.7%; methylphenyl silicone resin of 3.sup.7%; vinyl silicone oil 3.sup.7%; polyvinyl acetate emulsion 10.sup.19%; deionized water for balance.

2. The busbar according to claim 1, having a density of 2.7 g/cm.sup.3.

3. The busbar according to claim 1, having a thermal conductivity at 25 C. of 218 W/(m.Math.K).

4. The busbar according to claim 1, having a conductivity greater than or equal to 57% IACS.

5. The busbar according to claim 1, wherein a solid content in the raw material formula of the insulating layer is less than or equal to 60%.

Description

DETAILED DESCRIPTION

(1) The present invention is further described below in combination with embodiments:

Embodiment 1: A Busbar with an Insulation Coating for a New Energy Automobile

(2) A busbar with an insulation coating for a new energy automobile comprises a busbar body and a high-temperature-resistant insulating layer sprayed on the busbar body, and a raw material formula of the high-temperature-resistant insulating layer comprises the following materials in mass percent:

(3) TABLE-US-00002 high aluminum cement 11%; attapulgite clay 7%; porcelain clay 3%; titanium dioxide 3%; multi-walled carbon nanotubes 3%; boron phosphate 6%; n-methylol acrylamide 3%; aluminum dihydrogen phosphate 7%; tri-block copolymer styrene-butzdiene-methyl methacrylate 6%; methylphenyl silicone resin 3%; vinyl silicone oil 3%; polyvinyl acetate emulsion 11%; deionized water 34%.

(4) 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.

(5) A busbar for a new energy automobile. The thickness of the busbar is 12.5 mm; the cross-sectional area of the busbar is 38 cm.sup.3; the tensile strength, The density of the busbar is 2.7 g/cm.sup.3. The thermal conductivity of the busbar at 25 C. is 218 W/(m.Math.K). The conductivity of the busbar is 57% IACS.

(6) The busbar 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.

Embodiment 2: A Busbar with an Insulation Coating for a New Energy Automobile

(7) A busbar with an insulation coating for a new energy automobile comprises a busbar body and a high-temperature-resistant insulating layer sprayed on the busbar body, and a raw material formula of the high-temperature-resistant insulating layer comprises the following materials in mass percent:

(8) TABLE-US-00003 high aluminum cement 5%; attapulgite clay 4%; porcelain clay 8%; titanium dioxide 5%; multi-walled carbon nanotubes 5%; boron phosphate 2%; n-methylol acrylamide 5%; aluminum dihydrogen phosphate 4%; tri-block copolymer styrene-butzdiene-methyl methacrylate 3%; methylphenyl silicone resin 6%; vinyl silicone oil 7%; polyvinyl acetate emulsion 18%; deionized water 28%.

(9) 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.

(10) A busbar for a new energy automobile. The thickness of the busbar is 12.5 mm; the cross-sectional area of the busbar is 38 cm.sup.3. The density of the busbar is 2.7 g/cm.sup.3. The thermal conductivity of the busbar at 25 C. is 218 W/(m.Math.K). The conductivity of the busbar is 57% IACS.

(11) The busbar 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.

(12) 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.