Cooling medium and preparation method and application thereof

文档序号：1871723 发布日期：2021-11-23 浏览：15次中文

阅读说明：本技术 一种冷却介质及其制备方法和应用 (Cooling medium and preparation method and application thereof ) 是由樊秀菊杨兵雷凌赵东方于 2021-08-26 设计创作，主要内容包括：本公开涉及一种冷却介质及其制备方法和应用,该冷却介质中包括：0.5～6重量份的非离子型金属缓蚀剂、0.1～5重量份的有机型金属缓蚀剂、0.1～4重量份的有机型分散剂、0.001～3重量份的树脂材料保护剂、0.2～4重量份的pH值调节剂、30～130重量份的冰点抑制剂和50～200重量份的去离子水。该冷却介质适用于新能源汽车及相关电池、电机和电控系统,可以满足新能源三电设备的冷却需求。(The present disclosure relates to a cooling medium, a method for preparing the same, and an application thereof, wherein the cooling medium comprises: 0.5-6 parts of nonionic metal corrosion inhibitor, 0.1-5 parts of organic metal corrosion inhibitor, 0.1-4 parts of organic dispersant, 0.001-3 parts of resin material protective agent, 0.2-4 parts of pH value regulator, 30-130 parts of freezing point inhibitor and 50-200 parts of deionized water. The cooling medium is suitable for new energy automobiles, related batteries, motors and electric control systems, and can meet the cooling requirement of new energy three-electric equipment.)

1. A cooling medium, comprising: 0.5-6 parts of nonionic metal corrosion inhibitor, 0.1-5 parts of organic metal corrosion inhibitor, 0.1-4 parts of organic dispersant, 0.001-3 parts of resin material protective agent, 0.2-4 parts of pH value regulator, 30-130 parts of freezing point inhibitor and 50-200 parts of deionized water.

2. The cooling medium of claim 1, wherein the cooling medium comprises: 0.6-5 parts of non-ionic metal corrosion inhibitor, 0.2-1 part of organic metal corrosion inhibitor, 0.5-3 parts of organic dispersant, 0.1-1 part of resin material protective agent, 0.5-3 parts of pH value regulator, 40-100 parts of freezing point inhibitor and 80-180 parts of deionized water.

3. The cooling medium of claim 1, wherein the cooling medium comprises: 0.8-2 parts of non-ionic metal corrosion inhibitor, 0.4-0.8 part of organic metal corrosion inhibitor, 1-2 parts of organic dispersant, 0.2-0.5 part of resin material protective agent, 1-2.5 parts of pH value regulator, 50-70 parts of freezing point inhibitor and 120-160 parts of deionized water.

4. The cooling medium of claim 1 wherein the non-ionic metal corrosion inhibitor is 1- (2-aminoethyl) -2-oleamidoimidazoline and/or 1- (2-amino-thioureidoethyl) -2-oleamidoimidazoline.

5. The cooling medium according to claim 1, wherein the organic type metal corrosion inhibitor is 2-mercaptophenylthiazole and/or 4-methyl-2-mercaptophenylthiazole.

6. The cooling medium of claim 1, wherein the organic dispersant is TH-0100 and/or TH-191.

7. The cooling medium according to claim 1, wherein the resin material protective agent is diisononyl phthalate and/or dioctyl phthalate.

8. The cooling medium according to claim 1, wherein the pH adjuster is tert-butylamine and/or sec-butylamine; the freezing point inhibitor is ethylene glycol and/or propylene glycol.

9. A method for preparing a cooling medium according to any one of claims 1 to 8, wherein the method comprises the steps of: mixing a nonionic metal corrosion inhibitor, an organic dispersant, a resin material protective agent, a freezing point inhibitor and deionized water according to a ratio by first stirring, then adding a pH value regulator and carrying out second stirring and mixing;

wherein the first agitating mixing conditions include: the temperature is 30-60 ℃, and the time is 40-60 minutes; the second stirring and mixing conditions include: the temperature is 30-60 ℃ and the time is 20-35 minutes.

10. Use of the cooling medium according to any one of claims 1 to 8 in batteries, electric machines, electric control systems.

Technical Field

The disclosure relates to the technical field of cooling media, in particular to a cooling medium and a preparation method and application thereof.

Background

With the development of the times, new energy automobiles are popularized and rapidly developed at home and abroad at present, related parts are rapidly developed along with the development of the whole industry, a battery, a motor and an electric control three-electric system become core components in the new energy automobiles and related equipment at present, and the service life of the equipment are directly influenced by the efficient and safe operation of the three-electric system. The three-power system belongs to electronic equipment, can produce a large amount of heat in the operation process, and these heat also need to be transferred away, guarantee that it works under suitable temperature, need carry out the heat management under the general condition, especially the continuous increase in aspects such as present new energy vehicle continuation of the journey mileage, battery voltage, motor power, need efficient heat-transfer medium to take away the heat in time, also need reduce the conductivity of cooling medium simultaneously to prevent liquid leakage when bumping and accident from causing to catch fire, emergence incident. The conventional cooling liquid is engine cooling liquid generally, cannot completely meet the cooling requirement of a three-electrical system, and is mainly embodied in the following aspects: on one hand, the three-electric system needs cooling liquid with lower conductivity, which is generally not higher than 50 mu S/cm; on the other hand, the conductivity of the common engine coolant is generally not less than 2000 mu S/cm; the third aspect is that the material related to the three-electric system is aluminum, 3 series, 4 series, 6 series and the like. The engine coolant focuses on common cast aluminum, cast iron, steel, soldering tin, red copper and brass; more resin materials are used in the three-way system, the usage amount of the resin materials is larger than that of a common engine, and the resin materials are mainly PA12, PA66, PPS and the like, while most of the resin materials are used in the engine, so that the compatibility of the cooling liquid and the resin materials needs to be more concerned. Therefore, a cooling medium is needed to meet the cooling requirement of the new energy three-electric equipment.

Disclosure of Invention

The cooling medium is suitable for new energy automobiles, related batteries, motors and electric control systems, and can meet the cooling requirement of new energy three-electric equipment.

In order to achieve the above object, a first aspect of the present disclosure provides a cooling medium including: 0.5-6 parts of nonionic metal corrosion inhibitor, 0.1-5 parts of organic metal corrosion inhibitor, 0.1-4 parts of organic dispersant, 0.001-3 parts of resin material protective agent, 0.2-4 parts of pH value regulator, 30-130 parts of freezing point inhibitor and 50-200 parts of deionized water.

A second aspect of the present disclosure provides a method for preparing the cooling medium of the first aspect, wherein the method comprises the steps of: mixing a nonionic metal corrosion inhibitor, an organic dispersant, a resin material protective agent, a freezing point inhibitor and deionized water according to a ratio by first stirring, then adding a pH value regulator and carrying out second stirring and mixing;

A third aspect of the present disclosure provides a use of the cooling medium of the first aspect in a battery, a motor, an electric control system.

Through the technical scheme, the cooling liquid provided by the disclosure has a better protective effect on metals such as 3-series aluminum, 4-series aluminum and 6-series aluminum besides the protective effect on conventional metals; the cooling liquid disclosed by the invention has good compatibility with various rubber nonmetal materials, and can avoid leakage and equipment failure in the using process; the cooling liquid disclosed by the invention is suitable for two working conditions of high temperature and low temperature, has a better foam tendency under the two working conditions, and can meet the cooling requirement of new energy three-electric equipment.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Detailed Description

The following describes in detail specific embodiments of the present disclosure. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

A first aspect of the present disclosure provides a cooling medium including: 0.5-6 parts of nonionic metal corrosion inhibitor, 0.1-5 parts of organic metal corrosion inhibitor, 0.1-4 parts of organic dispersant, 0.001-3 parts of resin material protective agent, 0.2-4 parts of pH value regulator, 30-130 parts of freezing point inhibitor and 50-200 parts of deionized water.

According to an embodiment of the present disclosure, wherein the cooling medium includes: 0.6-5 parts of non-ionic metal corrosion inhibitor, 0.2-1 part of organic metal corrosion inhibitor, 0.5-3 parts of organic dispersant, 0.1-1 part of resin material protective agent, 0.5-3 parts of pH value regulator, 40-100 parts of freezing point inhibitor and 80-180 parts of deionized water.

According to an embodiment of the present disclosure, wherein the cooling medium includes: 0.8-2 parts of non-ionic metal corrosion inhibitor, 0.4-0.8 part of organic metal corrosion inhibitor, 1-2 parts of organic dispersant, 0.2-0.5 part of resin material protective agent, 1-2.5 parts of pH value regulator, 50-70 parts of freezing point inhibitor and 120-160 parts of deionized water.

According to one embodiment of the present disclosure, the non-ionic metal corrosion inhibitor is 1- (2-aminoethyl) -2-oleamidoimidazoline and/or 1- (2-amino-thioureidoethyl) -2-oleamidoimidazoline. The non-ionic metal corrosion inhibitor can effectively protect various metal materials such as aluminum, steel, copper and the like, and is particularly used in combination with some organic metal corrosion inhibitors, so that the anti-corrosion effect of the non-ionic metal corrosion inhibitor on various aluminum metals and steel is enhanced.

According to an embodiment of the present disclosure, the organic metal corrosion inhibitor is 2-mercaptophenylthiazole and/or 4-methyl-2-mercaptophenylthiazole. The 2-mercapto benzothiazole and/or the 4-methyl-2-mercapto benzothiazole are effective Cu metal corrosion inhibitors, and when the pH value of the solution is about 9, the corrosion inhibitors are compounded with imidazoline corrosion inhibitors to play a synergistic role, so that the corrosion inhibition effect on various metals is improved.

According to one embodiment of the present disclosure, wherein the organic type dispersant is TH-0100 and/or TH-191. The dispersant can effectively perform good dispersion and solubilization with imidazoline corrosion inhibitors and thiazole corrosion inhibitors, can also perform good scale inhibition effect to prevent the solution from precipitation and turbidity, and can capture metal ions of the solution to keep the conductivity of the solution relatively constant.

According to one embodiment of the present disclosure, the resin material protecting agent is diisononyl phthalate and/or dioctyl phthalate. The protective agent can play a role in protecting resin and rubber materials in a cooling liquid product.

According to an embodiment of the present disclosure, the pH adjuster is an amine compound, preferably tert-butylamine and/or sec-butylamine.

According to an embodiment of the present disclosure, the freezing point depressant is ethylene glycol and/or propylene glycol.

The second aspect of the present disclosure further provides a method for preparing the cooling medium, wherein the method comprises the following steps: mixing a nonionic metal corrosion inhibitor, an organic dispersant, a resin material protective agent, a freezing point inhibitor and deionized water according to a ratio by first stirring, then adding a pH value regulator and carrying out second stirring and mixing;

The third aspect of the present disclosure provides the use of the cooling medium in a battery, a motor, and an electric control system.

The cooling liquid that this disclosure provided can regard as the cooling liquid of three electric systems of new forms of energy, can realize the cooling to motor, automatically controlled and battery simultaneously, satisfies the whole demand of new forms of energy vehicle.

The present disclosure is further illustrated by the following examples, but is not to be construed as being limited thereby.

In the following examples, 1- (2-aminoethyl) -2-oleate imidazoline and/or 1- (2-amino-thioureidoethyl) -2-oleate imidazoline was obtained from Heilong (Shanghai) Biotech Ltd; 2-Thiophenylthiazole and/or 4-methyl-2-Thiophenylthiazole were purchased from Shandong-West Asia chemical industry Co., Ltd; TH-0100 and/or TH-191 are available from Shandong Tai and Water treatment science and technology, Inc.; diisononyl phthalate and/or dioctyl phthalate were purchased from blue sail chemical group; tertiary butylamine and/or sec-butylamine are available from Shandong Jinan Rabdosia chemical Co.

Example 1