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Aqueous dipping insulating paint for insulation treatment of motor of electromobile and roll dipping process for motor of electromobile

A technology of insulation treatment and impregnated insulation, which is applied in the field of water-based impregnated insulating varnish, which can solve the problems of affecting the bonding strength and insulation resistance of motor windings, the rolling dipping process of battery car motors, and the uneven drying of paint films, etc., so as to reduce the number of employees and Impact on the surrounding environment, material cost reduction, long storage time effect

Active Publication Date: 2018-08-24
浙江博菲电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there is a problem in the two kinds of water-based impregnated insulating varnishes disclosed in the above-mentioned patent documents, which is also a common problem of water-based impregnated insulating varnishes using water as a diluent. Not uniform, resulting in residual moisture inside the paint film after drying
This will affect the bonding strength and insulation resistance of the motor windings, therefore, it is not suitable for the roll dipping process of the battery car motor

Method used

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  • Aqueous dipping insulating paint for insulation treatment of motor of electromobile and roll dipping process for motor of electromobile
  • Aqueous dipping insulating paint for insulation treatment of motor of electromobile and roll dipping process for motor of electromobile
  • Aqueous dipping insulating paint for insulation treatment of motor of electromobile and roll dipping process for motor of electromobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 15g polyester resin, 5g 325 amino resin, 5g ethylene glycol monobutyl ether co-solvent, 0.2g defoamer + leveling agent, 126g natural water, 1g triethylamine neutralizer, 0.02g composite drier .

[0047] In this embodiment, the polyester resin is prepared by self-production, and the specific preparation process is as follows:

[0048] Put 60.3g of trimethylolpropane, 37g of phthalic acid, 28g of linoleic acid, and 24.9g of isophthalic acid into the reaction kettle together, start to heat up to 180°C, and start to keep warm. During the heating period, start stirring according to the situation, and keep warm at 220°C at a heating rate of 10°C per hour until the acid value is 40-50mgKOH / g. When the temperature is lowered to 200±5°C, finally add 4.5g of polybasic acid trimellitic anhydride and keep warm at 180-190°C To acid value 40±5mgKOH / g.

[0049] The composite drier used in this example includes zinc isooctanoate, calcium isooctanoate, and chelated cobalt drier (HLD06...

Embodiment 2

[0063] 20g of polyester resin, 5g of 325 amino resin, 7g of ethylene glycol monobutyl ether co-solvent, 0.2g of defoamer + leveling agent, 158.6g of natural water, 1.2g of triethylamine neutralizer, composite drier 0.025g.

[0064] In this embodiment, the polyester resin is prepared by self-production, and the specific preparation process is as follows:

[0065] Put 62g of trimethylolpropane, 44.4g of phthalic acid, 28g of linoleic acid, and 16.6g of isophthalic acid into the reaction kettle together, start to heat up to 180°C, and start to keep warm. During the heating period, start stirring according to the situation, and keep warm at 220°C at a heating rate of 10°C per hour until the acid value is 40-50mgKOH / g, and when the temperature is lowered to 200±5°C, finally add 5.0g of polybasic acid trimellitic anhydride and keep warm at 180-190°C To acid value 40±5mgKOH / g.

[0066] The composite drier in this example is the same as that in Example 1.

[0067] After the compone...

Embodiment 3

[0071] 25g polyester resin, 6g 325 amino resin, 10g ethylene glycol monobutyl ether co-solvent, 0.3g defoamer + leveling agent, 205g natural water, 1.5g triethylamine neutralizer, 0.030g drier .

[0072] In this embodiment, the polyester resin is prepared by self-production, and the specific preparation process is as follows:

[0073] Put 55.8g of trimethylolpropane, 51.8g of phthalic acid, 28g of linoleic acid, and 8.3g of isophthalic acid into the reaction kettle together, start to heat up to 180°C, and start to keep warm. During the heating period, start stirring according to the situation, and keep warm at 220°C at a heating rate of 10°C per hour until the acid value is 40-50mgKOH / g. When the temperature is lowered to 200±5°C, finally add 4.5g of polybasic acid trimellitic anhydride and keep warm at 180-190°C To acid value 40±5mgKOH / g.

[0074] The composite drier in this example is the same as that in Example 1.

[0075] After the components of the above formula are mi...

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Abstract

The invention discloses aqueous dipping insulating paint for insulation treatment of a motor of an electromobile. The aqueous dipping insulating paint comprises aqueous resin, a curing agent, auxiliaries, water and a composite drier, wherein the composite drier comprises a zinc drier, a calcium drier and a cobalt drier. According to the aqueous dipping insulating paint for the insulation treatmentof the motor of the electromobile, provided by the invention, under the condition of high paint coating amount, the aqueous dipping insulating paint is high in drying rate, moisture cannot be remained inside paint films, and cured paint films have excellent bonding strength and insulation resistance, so that the aqueous dipping insulating paint is particularly applicable to a roll dipping processfor the motor of the electromobile.

Description

technical field [0001] The invention relates to the technical field of water-based impregnating insulating varnish, in particular to a water-based impregnating insulating varnish for insulation treatment of battery car motors and a rolling dipping process for battery car motors. Background technique [0002] At present, the development trend of electrical and electrical equipment is to increase capacity, reduce weight, and reduce volume. The development trend of motor miniaturization, in addition to improving the heat resistance of the motor insulation, also requires the motor insulation to have good thermal conductivity, mechanical strength, moisture resistance, etc. It is the most commonly used way to achieve motor insulation by impregnation process. Generally, the effects of impregnating insulating varnish on motors are mainly as follows: [0003] 1. After impregnated with insulating varnish, the insulation performance is further improved; [0004] 2. After impregnated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D161/20C09D5/25C09D7/63C09D7/20C09F9/00B05D5/00B05D5/10
CPCB05D5/00B05D5/10C08K2201/014C09D7/20C09D7/63C09D161/20C09D167/00C09F9/00H01B3/308C08L61/20C08K5/098
Inventor 张飞吴化军许坤程微
Owner 浙江博菲电气股份有限公司
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