CN216698498U

CN216698498U - High-low temperature change stable structure type water-cooling joint

Info

Publication number: CN216698498U
Application number: CN202123356935.8U
Authority: CN
Inventors: 唐侠飞
Original assignee: Suzhou Jueno Precision Machinery Co ltd
Current assignee: Suzhou Jueno Precision Machinery Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-07
Anticipated expiration: 2031-12-24

Abstract

The utility model belongs to the field of power battery heat dissipation, and particularly discloses a high-low temperature change stable structure type water-cooling joint which comprises a large-caliber section (100), a small-caliber section (200) which is horizontally right, and an elbow (300) which is connected between the large-caliber section (100) and the small-caliber section (200), wherein the outer ring of the end part (110) of the large-caliber section (100) is provided with a large-caliber thread (111); a large-caliber sealing ring mounting groove (112) is formed between the large-caliber thread (111) and the elbow (300) area; the outer ring of the end part (210) of the small-caliber section (200) is provided with a small-caliber sealing ring mounting groove (211); the large-caliber section (100), the small-caliber section (200) and the elbow (300) are internally provided with water cooling channels (400); the inner wall of the water cooling channel (400) is provided with a heat insulation layer (401); the utility model has compact structure, good sealing performance and stable high and low temperature change structure.

Description

High-low temperature change stable structure type water-cooling joint

Technical Field

The utility model belongs to the field of power battery heat dissipation, and particularly discloses a high-low temperature change stable-structure water-cooling joint.

Background

The power battery is a power source for providing power source for the tool, and is a storage battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts. The new energy automobile mainly comprises a battery driving system, a motor system, an electric control system, an assembly and the like. The motor, the electric control and the assembly are basically the same as those of the traditional automobile, and the reason of the price difference is the battery driving system. From the cost composition of the new energy automobile, the battery driving system accounts for 30-45% of the cost of the new energy automobile, and the power lithium battery accounts for about 75-85% of the cost composition of the battery driving system. The core of the new energy battery is the power battery, and the function of the battery diaphragm is also very important. The positive panel and the negative panel of the battery are separated in a narrow space, so that the short circuit caused by the contact of the two surfaces is prevented, and the ions in the electrolyte can be ensured to freely pass between the positive electrode and the negative electrode. Therefore, the diaphragm becomes an important core material for ensuring the isolation, reliability and stable operation of the lithium battery. Electrolyte can isolate combustion sources, diaphragm can improve heat-resisting temperature, and battery temperature is reduced when heat dissipation is sufficient, so that battery runaway caused by excessive heat accumulation is avoided. If the temperature of the battery is sharply increased to 300 ℃, even if the diaphragm is not melted and shrunk, the electrolyte and the positive and negative electrodes can generate strong chemical reaction, gas is released, internal high pressure is formed, and explosion is caused, so that the adoption of a proper heat dissipation mode is very important. Liquid cooling is currently the primary heat dissipation means. The liquid cooling is realized by heat exchange equipment such as a water jacket, a common cooling system is connected with the battery through a pipeline, cooling liquid is injected into the pipeline, and the heat is extracted from the battery through the circulating flow of the cooling liquid in the pipeline, so that the uniform distribution of the temperature of the battery is ensured, and higher heat exchange rate and higher cooling speed are provided. Among them, the water-cooled joint is a necessary device, and the existing water-cooled joint has defects in the aspects of sealing performance and temperature deformation resistance.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects, the utility model discloses a high-low temperature change stable structure type water-cooling joint.

The technical scheme of the utility model is as follows:

a high-low temperature change stable structure type water-cooling joint is L-shaped and comprises a large-caliber section which is vertically downward, a small-caliber section which is horizontally rightward, and an elbow which is connected between the large-caliber section and the small-caliber section; the outer ring of the large-caliber end part of the large-caliber section is provided with a large-caliber thread; a large-caliber sealing ring mounting groove is formed between the large-caliber thread and the elbow area; the outer ring of the small-caliber end part of the small-caliber section is provided with a small-caliber sealing ring mounting groove; the large-caliber section, the small-caliber section and the elbow are internally provided with water cooling channels; and a heat insulation layer is arranged on the inner wall of the water cooling channel.

Further, above-mentioned high low temperature changes stable in structure type water-cooling joint, the insulating layer is the ceramic insulating layer, and thickness is 2 mm.

Further, according to the high-low temperature change stable structure type water-cooling joint, the heat insulation layer is further plated with an anti-corrosion layer.

Furthermore, in the high-low temperature change stable structure type water-cooling joint, the angle range of the elbow is 85-95 degrees.

Further, above-mentioned high low temperature changes stable in structure type water-cooling connects, the elbow with still be provided with reducing transition area between the small-bore section.

Furthermore, according to the high-low temperature change stable-structure water-cooling joint, the reducing transition area and the small-caliber section form an angle of 15 degrees.

Furthermore, above-mentioned high low temperature changes stable in structure type water-cooling connects, heavy-calibre sealing washer mounting groove with install the sealing washer in the small-bore sealing washer mounting groove.

Further, above-mentioned high low temperature changes stable in structure type water-cooling connects, heavy-calibre section diameter is 30mm, and small-calibre section diameter is 18mm, and water-cooling passageway diameter is 12 mm.

According to the technical scheme, the utility model has the following beneficial effects:

the utility model discloses a high-low temperature change stable structure type water-cooling joint which is compact in structure, high in structural strength due to the combination of large and small calibers and elbows, and high in sealing performance due to the fact that a ceramic heat insulation layer is arranged inside a water-cooling channel, the deformation of the water-cooling joint caused by the change of internal water temperature is prevented, and further, the arrangement of a sealing ring is increased, so that the sealing performance is further increased, the heat dissipation stability of a power battery is further improved, the safety of the battery is improved, and the safety and the reliability of an electric automobile are further protected.

Drawings

FIG. 1 is a schematic view of a high and low temperature change structurally stable water-cooled joint according to example 1;

FIG. 2 is a schematic view of a high and low temperature change structurally stable water-cooled joint according to example 2;

wherein: the large-caliber sealing ring comprises a large-caliber section 100, a large-caliber end part 110, a large-caliber thread 111, a large-caliber sealing ring installation groove 112, a small-caliber section 200, a small-caliber end part 210, an elbow 300, a water-cooling channel 400, a heat insulation layer 410 and a reducing transition area 420.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

The water-cooled joint with high and low temperature change and stable structure as shown in fig. 1 is L-shaped, and comprises a large-caliber section 100 facing downwards vertically, a small-caliber section 200 facing right horizontally, and an elbow 300 connecting the large-caliber section 100 and the small-caliber section 200; the outer ring of the large-caliber end part 110 of the large-caliber section 100 is provided with a large-caliber thread 111; a large-caliber sealing ring installation groove 112 is formed between the large-caliber thread 111 and the elbow 300 area; the outer ring of the small-caliber end 210 of the small-caliber section 200 is provided with a small-caliber sealing ring mounting groove 211; the large-caliber section 100, the small-caliber section 200 and the elbow 300 are internally provided with water cooling channels 400; the inner wall of the water-cooling channel 400 is provided with a heat insulation layer 410.

Example 2

As shown in fig. 2, the water-cooled joint with stable high and low temperature change structure is L-shaped, and includes a large-diameter section 100 facing vertically downward, a small-diameter section 200 facing horizontally rightward, and an elbow 300 connecting the large-diameter section 100 and the small-diameter section 200; the outer ring of the large-caliber end part 110 of the large-caliber section 100 is provided with a large-caliber thread 111; a large-caliber sealing ring installation groove 112 is formed between the large-caliber thread 111 and the elbow 300 area; the outer ring of the small-caliber end 210 of the small-caliber section 200 is provided with a small-caliber sealing ring mounting groove 211; the large-caliber section 100, the small-caliber section 200 and the elbow 300 are internally provided with water cooling channels 400; the inner wall of the water-cooling channel 400 is provided with a heat insulation layer 410; preferably, the heat insulation layer 410 is a ceramic heat insulation layer, and the thickness is 2 mm; further, the thermal insulation layer 410 is also plated with an anti-corrosion layer; in particular, the angle of the elbow 300 ranges from 85 to 95 °; further, a reducing transition area 420 is arranged between the elbow 300 and the small-caliber section 200; in particular, the reducing transition region 420 forms an angle of 15 ° with the small-caliber segment 200; preferably, the large-caliber sealing ring mounting groove 112 and the small-caliber sealing ring mounting groove 211 are internally provided with sealing rings; further, the diameter of the large-caliber section 100 is 30mm, the diameter of the small-caliber section 200 is 18mm, and the diameter of the water cooling channel 400 is 12 mm.

The above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made by the claims and the disclosure of the present invention should be included in the scope of the present invention.

Claims

1. The water-cooling joint with the stable high-temperature and low-temperature change structure is characterized by being L-shaped and comprising a large-caliber section (100) which vertically faces downwards, a small-caliber section (200) which horizontally faces rightwards, and an elbow (300) which is connected between the large-caliber section (100) and the small-caliber section (200); the outer ring of the large-caliber end part (110) of the large-caliber section (100) is provided with a large-caliber thread (111); a large-caliber sealing ring mounting groove (112) is formed between the large-caliber thread (111) and the elbow (300) area; the outer ring of the small-caliber end part (210) of the small-caliber section (200) is provided with a small-caliber sealing ring mounting groove (211); the large-caliber section (100), the small-caliber section (200) and the elbow (300) are internally provided with water cooling channels (400); and a heat insulation layer (410) is arranged on the inner wall of the water cooling channel (400).

2. The high and low temperature change structurally stable water-cooled joint according to claim 1, wherein said insulation layer (410) is a ceramic insulation layer having a thickness of 2 mm.

3. The high and low temperature change structurally stable water cooled joint according to claim 2, wherein said thermal insulating layer (410) is further coated with a corrosion resistant layer.

4. A high and low temperature change structurally stable water cooled joint according to claim 1 wherein said elbow (300) has an angle in the range of 85-95 °.

5. The high-low temperature change stable water-cooled joint according to claim 1, wherein a reducing transition region (420) is further disposed between the elbow (300) and the small-caliber section (200).

6. The stable high and low temperature change structure type water-cooled joint according to claim 5,

the reducing transition area (420) and the small-caliber section (200) form an angle of 15 degrees.

7. The stable high-temperature and low-temperature variable structure type water-cooling joint as claimed in claim 1, wherein sealing rings are installed in the large-diameter sealing ring installation groove (112) and the small-diameter sealing ring installation groove (211).

8. The high and low temperature change structurally stable water-cooled joint according to claim 1, wherein the diameter of the large-caliber section (100) is 30mm, the diameter of the small-caliber section (200) is 18mm, and the diameter of the water-cooled channel (400) is 12 mm.