CN217086711U - Liquid cooling device and battery pack - Google Patents

Abstract

The utility model relates to a battery technology field provides a liquid cooling device and battery package. The liquid cooling device comprises an insulating support, wherein the insulating support is used for fixing a battery; a liquid-cooled tube, at least a portion of which is disposed inside the insulating support, the liquid-cooled tube being contactable with the battery. Because the at least part of liquid cooling pipe sets up in the inside of insulating support, can improve the fixed strength of liquid cooling pipe and insulating support, when using, with battery fixed mounting in insulating support, the liquid cooling pipe can carry out the liquid cooling with the battery contact, simultaneously, structural stability between liquid cooling pipe, insulating support and the battery obtains promoting.

Description

Liquid cooling device and battery pack

Technical Field

The utility model relates to a battery technology field especially relates to a liquid cooling device and battery package.

Background

In the correlation technique, the fixing strength of the liquid cooling pipe for cooling the battery and the insulating support is low, so that the structural stability among the liquid cooling pipe, the insulating support and the battery is poor, and the liquid cooling effect of the liquid cooling pipe on the battery is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a liquid cooling device and battery package to promote the structural stability between liquid cooling pipe, insulating support and the battery.

According to the utility model discloses a first aspect provides a liquid cooling device, include:

the insulating bracket is used for fixing a battery;

a liquid-cooled tube, at least a portion of which is disposed inside the insulating support, the liquid-cooled tube being contactable with the battery.

The utility model provides a liquid cooling device, because the at least part of liquid cooling pipe sets up in the inside of insulating support, can improve the fixed strength of liquid cooling pipe and insulating support, when using, with battery fixed mounting in insulating support, the liquid cooling pipe can contact with the battery, carries out the liquid cooling to the battery, and simultaneously, the structural stability between liquid cooling pipe, insulating support and the battery obtains promoting.

According to the utility model discloses a second aspect provides a battery package, including battery and foretell liquid cooling device, the battery is fixed in insulating support.

The utility model provides a battery pack is owing to used the utility model provides a liquid cooling device not only can carry out the liquid cooling to the battery, can improve the structural stability between liquid cooling pipe, insulating support and the battery moreover.

Drawings

For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may be arranged differently as is known in the art. Further, in the drawings, like reference characters designate the same or similar parts throughout the several views. Wherein:

fig. 1 is a schematic structural diagram of a liquid cooling apparatus provided in this embodiment;

fig. 2 is a schematic structural diagram of the liquid cooling device provided in this embodiment in cooperation with a cylindrical battery;

fig. 3 is a schematic structural diagram of a liquid cooling apparatus according to a modification of the present embodiment;

fig. 4 is a schematic structural view of a placement groove in a modification of the liquid cooling apparatus provided in this embodiment;

fig. 5 is a schematic partial structure diagram of a liquid cooling apparatus provided in this embodiment;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a schematic structural diagram of an insulating support in the liquid cooling device provided in this embodiment;

fig. 8 is a schematic structural view of a heat insulating member in the liquid cooling device provided in this embodiment;

fig. 9 is a schematic partial structure diagram of a battery pack provided in this embodiment;

fig. 10 is a top view of the battery pack provided in the present embodiment;

FIG. 11 is a schematic structural view of an insulating sleeve in the present embodiment;

fig. 12 is a schematic structural view of a modified example of the heat insulating jacket according to the present embodiment.

The reference numerals are explained below:

100. an insulating support; 101. a placement groove; 1011. a trench wall; 1012. an opening; 102. a card slot; 103. a liquid cooling channel; 200. a liquid-cooled tube; 200a, a first liquid cooling pipe; 200b, a second liquid cooling pipe; 201. a partition plate; 2011. an arc-shaped surface; 202. a liquid cooling flow passage; 300. a cylindrical battery; 400. a thermal insulation member; 401. a curved side surface; 410. a heat insulating sleeve; 411. and (4) opening the opening.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the" object or "an" object are also intended to mean one of possibly multiple such objects.

The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as the case may be.

Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in this context, when an element or feature is referred to as being "on", "under", or "inner", "outer" with respect to another element(s), it can be directly on "," under ", or" inner "," outer "with respect to the other element(s), or indirectly on", "under", or "inner", "outer" with respect to the other element(s) via intervening elements.

The embodiment provides a liquid cooling device. Referring to the structure shown in fig. 1, the liquid cooling apparatus provided in this embodiment includes an insulating support 100 and a liquid cooling pipe 200, where the insulating support 100 is used to fix a battery; at least a portion of the liquid-cooled tube 200 is disposed inside the insulating support 100, and the liquid-cooled tube 200 can be in contact with the battery.

The liquid cooling device provided by the embodiment can improve the fixing strength of the liquid cooling pipe 200 and the insulating support 100 because at least part of the liquid cooling pipe 200 is arranged in the insulating support 100, when the liquid cooling device is used, the battery is fixedly arranged on the insulating support 100, the liquid cooling pipe 200 can be in contact with the battery, the battery is subjected to liquid cooling, and meanwhile, the structural stability among the liquid cooling pipe 200, the insulating support 100 and the battery is improved.

It should be noted that the liquid cooling tube 200 may be directly contacted with the battery, or indirectly contacted with the battery, for example, the liquid cooling tube 200 is indirectly contacted with the battery through a heat conductive adhesive and fixed.

In this embodiment, referring to fig. 2, the insulating holder 100 is used to fix the cylindrical battery 300.

It should be noted that the insulating holder 100 may be used to fix the prismatic battery.

In one embodiment, the insulating support 100 is provided with a placement groove 101, and the placement groove 101 is used for placing a battery. Illustratively, the placement groove 101 has a circular cross-sectional shape to fit the circumferential surface of the cylindrical battery 300. The upper surface of the insulating support 100 is provided with a plurality of rows of placing grooves 101, the plurality of rows of placing grooves 101 are arranged in parallel at intervals, each row of placing grooves comprises a plurality of placing grooves 101, and exemplarily, as shown in fig. 1, two adjacent rows of placing grooves 101 are arranged in a staggered manner, so that the insulating support 100 can be fully utilized, and more batteries can be placed on the insulating support 100.

In one embodiment, the wall 1011 of the placement channel 101 is provided with an opening 1012, and at least part of the liquid-cooled tube 200 is located in the opening 1012 and is capable of making contact with a battery.

For example, referring to fig. 3 and fig. 4, the portion of the groove wall 1011 of the placing groove 101 opposite to the liquid cooling pipe 200 is provided with an opening 1012, and the portion of the serpentine liquid cooling plate located at the opening 1012 can be used as the groove wall 1011 of the placing groove 101 and can be in contact with the circumferential surface of the cylindrical battery 300 located in the placing groove 101, so that the contact area between the liquid cooling pipe 200 and the battery is increased, and therefore, the battery can be cooled more sufficiently, the liquid cooling efficiency is improved, and the battery can be fixed.

Illustratively, the opening 1012 extends through from the notch of the placement tank 101 to the upper surface of the tank bottom of the placement tank 101.

In one embodiment, the insulating support 100 is made of an insulating material to ensure the safety of the battery pack.

In one embodiment, referring to fig. 1, the liquid-cooled tube 200 is a serpentine liquid-cooled plate that is capable of liquid-cooling the cylindrical battery 300. Illustratively, the serpentine liquid cooling plate is disposed between two adjacent columns of the placing grooves 101, so that the serpentine liquid cooling plate can cool the cylindrical batteries 300 located at two sides of the serpentine liquid cooling plate simultaneously.

Exemplarily, the quantity of snakelike liquid cooling board is a plurality of, and a plurality of snakelike liquid cooling board parallel interval sets up, can have a standing groove 101 between two adjacent snakelike liquid cooling boards, also can have two standing grooves 101. In this way, each serpentine liquid cooling plate can simultaneously cool the cylindrical batteries 300 on two sides of the serpentine liquid cooling plate.

In some embodiments, in order to satisfy the requirement of lightweight design, the height of the insulating support 100 is small as long as the depth of the placing groove 101 is ensured to fix the battery.

In order to ensure a larger contact area between the liquid cooling pipe 200 and the battery and enhance the liquid cooling effect, in one embodiment, the top end of the liquid cooling pipe 200 is beyond the upper surface of the insulating support 100. Specifically, the top end of the liquid-cooling pipe 200 is located above the upper surface of the insulating support 100, so that the portion of the liquid-cooling pipe 200 located outside the insulating support 100 can be brought into contact with the portion of the cylindrical battery 300 located outside the placement groove 101, thereby improving the liquid-cooling effect.

In some embodiments, the bottom end of the liquid-cooled tube 200 may extend to a position substantially flush with the bottom of the groove 101 to ensure that the liquid-cooled tube 200 can have a larger contact area with the circumferential surface of the cylindrical battery 300.

It should be noted that the bottom end of the liquid cooling pipe 200 may also extend to the bottom of the insulating support 100. Referring to fig. 5, the liquid cooling channel 103 is disposed at the bottom of the insulating support 100, so that the liquid cooling efficiency can be further improved.

In some embodiments, a partition 201 is disposed within the liquid-cooled tube 200, the partition 201 extending in a direction substantially coincident with the direction of extension of the liquid-cooled plates, the partition 201 dividing the interior cavity of the liquid-cooled tube 200 into a plurality of liquid-cooled runners 202. Illustratively, referring to fig. 5, the number of the partition plates 201 is five, and the five partition plates 201 divide the inner cavity of the liquid cooling pipe 200 into six liquid cooling flow passages 202, and the six liquid cooling flow passages 202 are arranged at intervals along the height direction of the insulating support 100. The contact area of the liquid cooling medium and the battery can be ensured to be larger by the mode, and the problem that the liquid cooling medium can only cool the bottom of the battery under the action of gravity is avoided.

Referring to fig. 5, an arrow direction Z indicates a height direction of the insulating support 100. When the liquid cooling device carries out the liquid cooling to a list of battery in the battery package, a plurality of liquid cooling runners 202 can carry out the liquid cooling to the different positions of same battery, guarantee that every battery can both obtain comparatively even liquid cooling.

In some embodiments, the flow direction of the liquid cooling medium in the plurality of liquid cooling flow passages 202 is the same.

In some embodiments, referring to fig. 6, two opposite plate surfaces of the partition plate 201 are arc surfaces 2011, and the bending directions of the two arc surfaces 2011 are opposite, that is, each arc surface 2011 is bent toward a direction close to the other arc surface 2011, so that the inner wall of the liquid cooling flow channel 202 is in smooth transition, thereby reducing the flow resistance of the liquid cooling medium, and at the same time, alleviating the impact of the liquid cooling medium on the liquid cooling pipe 200 and reducing the damage of the liquid cooling pipe 200.

In some embodiments, the liquid cooling tube 200 is made of metal, and a heat conducting cushion is disposed on the outer surface of the liquid cooling tube 200.

The liquid cooling pipe 200 of metal material can improve the liquid cooling effect, sets up the heat conduction blotter through the surface at liquid cooling pipe 200, can be under the prerequisite of guaranteeing the liquid cooling effect, and the battery is avoided impaired with the battery looks buffering.

Illustratively, the entire outer surface of the liquid-cooled tube 200 is provided with a thermally conductive cushion.

The heat conductive buffer pad may be provided only on the outer surface of the portion of the liquid cooling tube 200 located outside the insulating bracket 100.

For example, the heat-conducting cushion pad may be an existing heat-conducting silicone pad.

In some embodiments, the material of the liquid cooling tube 200 is an insulating material, and the material of the liquid cooling tube 200 is the same as the material of the insulating bracket 100. For example, the material of the liquid cooling tube 200 and the material of the insulating bracket 100 are both plastic.

In one possible design, the liquid cooling tube 200 is injection molded with the insulating holder 100. By adopting the mode, the connection strength of the liquid cooling pipe 200 and the insulating support 100 can be enhanced, the structural stability of the liquid cooling pipe 200 is improved, the liquid cooling pipe 200 is in better contact with a battery, and the liquid cooling effect of the liquid cooling pipe 200 on the battery is improved.

In another possible design, the insulating bracket 100 is provided with a clamping groove 102, and at least part of the liquid cooling pipe 200 is fixed in the clamping groove 102 in a limiting manner. Through setting up draw-in groove 102, can carry out the chucking to liquid-cooled tube 200 and fix, improved liquid-cooled tube 200's structural stability.

In this alternative design, the slots 102 are wavy slots, and specifically, referring to fig. 7, the slots 102 extend in a wavy line on the upper surface of the insulating support 100 to match the shape of the serpentine-shaped liquid-cooled plate.

It should be noted that the locking groove 102 is not limited to a wave-shaped groove, and other locking grooves 102 may be selected according to the shape of the liquid cooling tube 200, as long as the liquid cooling tube 200 can be tightly fixed in the locking groove 102. For example, the liquid cooling pipe 200 is a flat pipe, and the clamping groove 102 may be a straight groove, and the width of the straight groove is adapted to the thickness of the flat pipe.

In one embodiment, the liquid cooling apparatus further comprises a heat insulating member 400, the heat insulating member 400 is fixedly connected to the insulating support 100, and the heat insulating member 400 is adapted to contact the outer surface of the battery. By the mode, heat insulation between adjacent batteries can be realized, and thermal runaway is avoided.

Specifically, the circumferential surfaces of two adjacent cylindrical batteries 300 and the portion of the liquid cooling tube 200 facing between the two adjacent cylindrical batteries 300 are cavities, depending on the arrangement of the batteries, a cavity can be formed between the circumferential surfaces of three cylindrical batteries 300 having a triangular connecting line between the three centers of circles, a cavity can also be formed between the circumferential surfaces of four cylindrical batteries 300 having a rectangular connecting line between the four centers of circles, the heat insulating member 400 is disposed in the cavity, the outer surface of the heat insulating member 400 can be in direct contact with the cylindrical batteries 300 or in indirect contact with the cylindrical batteries 300, for example, the heat insulating member 400 and the cylindrical batteries 300 are indirectly contacted and fixed by gluing.

When the mode through the encapsulating carries out the gluing to cylinder battery 300, insulating support 100 and snakelike liquid-cooled board and fixes, because heat insulating part 400 is located the cavity, can effectively restrain glue and flow in to the cavity, guarantee that glue can fill between liquid cooling pipe 200, battery and heat insulating part 400, reduced the quantity of glue, and then alleviateed whole weight for the energy density of battery package obtains effectual promotion.

In one embodiment, the heat insulator 400 has a hollow structure, and the side surface of the hollow structure can be in contact with the outer circumferential surface of the battery. Because heat insulating part 400 is hollow structure, can realize thermal-insulated between battery, avoid taking place the thermal runaway.

In one embodiment, referring to fig. 8, the thermal insulation member 400 has a hollow prism-like structure having a plurality of curved sides 401, and the curved sides 401 are attached to the circumferential surface of the cylindrical battery 300.

Since the circumferential surface of the cylindrical battery 300 is an arc-shaped curved surface, in order to be attached to the circumferential surface of the cylindrical battery 300, the thermal insulation member 400 has a hollow prismatic structure having a plurality of curved side surfaces 401, for example, according to the arrangement of the cylindrical batteries 300, the outline shape of a region enclosed and combined between a plurality of adjacent cylindrical batteries 300 is different, for example, the outline shape of the region may be a curved triangle, and accordingly, the thermal insulation member 400 has a hollow triangular prism structure.

As another example, the contour of the region may be a curved quadrilateral, and accordingly, the thermal insulation member 400 has a hollow quadrangular prism structure.

The heat insulating material 400 is not limited to the hollow prism structure, and other types of heat insulating materials 400 may be selected according to the contour of the gap between the battery and the battery as long as the heat insulating function between the battery and the battery can be achieved.

The embodiment also provides a battery pack, which comprises a battery and the liquid cooling device provided by the embodiment, wherein the battery is fixed on the insulating support 100.

The battery pack provided by the embodiment can not only cool the battery, but also improve the structural stability among the liquid cooling pipe 200, the insulating support 100 and the battery due to the use of the liquid cooling device provided by the embodiment.

In one embodiment, the battery is a cylindrical battery 300. The cylindrical battery 300 is placed in the placement groove 101 and fixed by adhesion.

In one embodiment, the top end of the liquid cooled tube 200 is lower than the top end of the battery, as shown in fig. 9.

Illustratively, the liquid-cooled tube 200 is a serpentine liquid-cooled plate, and the wavy plate surface of the serpentine liquid-cooled plate can be adapted to the circumferential surface of the battery, so that effective liquid cooling can be performed on the cylindrical battery 300.

The top of snakelike liquid cooling board is less than the top of cylinder battery 300, and such mode can increase the area of contact between the circumferential surface of snakelike liquid cooling board and battery on the basis of saving the space of battery package direction of height to the utmost, has improved liquid cooling efficiency.

In one embodiment, the thermal insulation member 400 of the liquid cooling apparatus is a cylindrical structure having a curved side 401, and the curved side 401 is attached to the circumferential surface of the cylindrical battery 300.

In one embodiment, the thermal insulation member 400 is a hollow cylindrical structure having a curved side surface 401, and the curved side surface 401 is attached to the circumferential surface of the cylindrical battery 300.

In one embodiment, the thermal insulation member 400 is a hollow prism-like structure having a plurality of curved sides 401, and the curved sides 401 are attached to the circumferential surface of the cylindrical battery 300.

The technical solution of the present embodiment will be described in detail below by taking the heat insulating material 400 as a hollow triangular prism structure as an example.

The hollow triangular prism-shaped structure has three curved side surfaces 401, wherein at least two curved side surfaces 401 are respectively attached to the circumferential surfaces of two adjacent cylindrical batteries 300. The three curved sides 401 are all arc-shaped sides 2011.

Illustratively, referring to fig. 10, two rows of placing grooves 101 are arranged between two adjacent liquid-cooling pipes 200, and the two rows of placing grooves 101 are arranged in a staggered manner, and the batteries in the two rows of placing grooves 101 are also arranged in a staggered manner, specifically, two adjacent rows of liquid-cooling pipes 200 are respectively named as a first liquid-cooling pipe 200a and a second liquid-cooling pipe 200b, and of the two rows of batteries, one row near the first liquid-cooling pipe 200a is named as a first row of batteries, and the other row near the second liquid-cooling pipe 200b is named as a second row of batteries. The region enclosed between the two adjacent cylindrical batteries 300 in the first row of batteries and the first liquid-cooling tube 200a is provided with a heat insulating member 400, one curved side 401 of the heat insulating member 400 is attached to the outer wall of the first liquid-cooling tube 200a, and the other two curved sides 401 of the heat insulating member 400 are respectively attached to the circumferential surfaces of the two adjacent cylindrical batteries 300.

In the second row of cells, a region surrounded by the cylindrical cells 300 corresponding to the position between the two adjacent cylindrical cells 300 and the two adjacent cylindrical cells 300 is provided with a heat insulating material 400, and three curved side surfaces 401 of the heat insulating material 400 are respectively attached to the circumferential surfaces of the three cylindrical cells 300.

In one embodiment, the number of the heat insulation members 400 is plural, and the plurality of heat insulation members 400 are fixedly connected to form at least two heat insulation sleeves 410, and the two heat insulation sleeves 410 are respectively sleeved outside the two adjacent cylindrical batteries 300.

Illustratively, referring to fig. 11, the number of the heat insulating members 400 is eight, and the eight heat insulating members 400 are divided into four groups, each group including two heat insulating members 400, and one edge of one heat insulating member 400 is opposite to and fixedly connected to one edge of the other heat insulating member 400, and the four groups of heat insulating members 400 are disposed in a staggered manner and fixedly connected together to form two heat insulating sleeves 410, wherein one heat insulating sleeve 410 is sleeved on the outside of one cylindrical battery 300 near the first liquid-cooled tube 200a, and the other heat insulating sleeve 410 is sleeved on the outside of the other cylindrical battery 300 near the second liquid-cooled tube 200b, and the other cylindrical battery 300 is adjacent to the one cylindrical battery 300. Both of the thermal insulation sleeves 410 have an opening 411 such that a part of the circumferential surface of the cylindrical battery 300 is located outside the thermal insulation sleeves 410, wherein the opening 411 of one of the thermal insulation sleeves 410 faces the first liquid-cooled tube 200a to enable the circumferential surface of the cylindrical battery 300 to be attached to the first liquid-cooled tube 200a, and the opening 411 of the other thermal insulation sleeve 410 faces the second liquid-cooled tube 200b to enable the circumferential surface of the cylindrical battery 300 to be attached to the second liquid-cooled tube 200 b. Such a mode is convenient for mend to gluing between cylinder battery 300 and liquid cooling pipe 200, has improved the fixed effect of cylinder battery 300 with the liquid cooling device, has reduced the quantity that heat conduction structure glued to realize thermal-insulated between battery and the battery, avoid taking place the thermal runaway.

Illustratively, referring to fig. 12, the number of the heat insulating members 400 is eight, and the eight heat insulating members 400 are divided into five groups, wherein three groups respectively include two heat insulating members 400, and one edge of one heat insulating member 400 is opposite to and fixedly connected to one edge of the other heat insulating member 400, the three groups of heat insulating members 400 are arranged at intervals along the arrangement direction of the cells in the same row, and the other two groups respectively include one heat insulating member 400 and are respectively connected between two adjacent groups of heat insulating members 400 in the three groups of heat insulating members 400 to form two heat insulating sleeves 410 arranged side by side, and the two heat insulating sleeves 410 arranged side by side are respectively sleeved outside two adjacent cylindrical cells 300 close to the same liquid cooling pipe 200. Both the two heat insulating sleeves 410 have an opening 411, and the openings 411 face to the same liquid cooling pipe 200, so that the circumferential surfaces of the two cylindrical batteries 300 can be attached to the same liquid cooling pipe 200.

In some embodiments, a plurality of thermal shields 400 are integrally formed.

It should be noted that the two rows of placing grooves 101 disposed between two adjacent liquid cooling tubes 200 may also be arranged in rows and columns, that is, in two rows of batteries, a plurality of cylindrical batteries 300 in one row correspond to cylindrical batteries 300 in the other row one by one, and therefore, an area enclosed between two adjacent cylindrical batteries 300 in one row and two cylindrical batteries 300 in the other row at corresponding positions is a curved quadrilateral area, and accordingly, the heat insulating member 400 located in the curved quadrilateral area may also be a hollow quadrangular structure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (14)

1. A liquid cooling apparatus, comprising:

an insulating support (100), the insulating support (100) being used for fixing a battery;

a liquid-cooled tube (200), at least part of said liquid-cooled tube (200) being arranged inside said insulating support (100), said liquid-cooled tube (200) being able to be in contact with said battery.

2. The liquid cooling device of claim 1, wherein the top end of the liquid cooling tube (200) extends beyond the upper surface of the insulating support (100).

3. The liquid cooling device of claim 1, wherein the insulating support (100) is provided with a clamping groove (102), and at least part of the liquid cooling pipe (200) is limited and fixed in the clamping groove (102).

4. The liquid cooling device of claim 3, wherein the liquid cooling tube (200) is a serpentine liquid cooling plate and the slot (102) is a wave-shaped slot.

5. A liquid cooling device according to claim 1, characterized in that the insulating support (100) is provided with a placement groove (101), said placement groove (101) being adapted to place the battery.

6. A liquid cooling device according to claim 5, characterized in that the tank wall (1011) of the placement tank (101) is provided with an opening (1012), at least part of the liquid cooling tube (200) being located in the opening (1012) and being able to be in contact with the battery.

7. The liquid cooling device of any of claims 1-6, further comprising a thermal insulator (400), wherein the thermal insulator (400) is fixedly connected to the insulating support (100), and wherein the thermal insulator (400) is adapted to contact an outer surface of a battery.

8. The liquid cooling device of claim 7, wherein the thermal insulation member (400) is a hollow structure.

9. A battery pack, comprising a battery and a liquid cooling device according to any one of claims 1 to 8, said battery being fixed to said insulating support (100).

10. The battery pack of claim 9, wherein the battery is a cylindrical battery (300).

11. The battery pack of claim 10, wherein the top end of the liquid-cooled tube (200) is lower than the top end of the battery.

12. The battery pack according to claim 10, wherein the heat insulator (400) of the liquid cooling device is a cylindrical structure having a curved side surface (401), and the curved side surface (401) is attached to the circumferential surface of the cylindrical battery (300).

13. The battery pack according to claim 12, wherein the heat insulating member (400) of the liquid cooling device has a hollow triangular prism-like structure having three curved side surfaces (401), wherein at least two curved side surfaces (401) are respectively attached to the circumferential surfaces of two adjacent cylindrical batteries (300).

14. The battery pack according to claim 12, wherein the number of the thermal insulation members (400) is plural, and the plural thermal insulation members (400) are fixedly connected to form at least two thermal insulation sleeves (410), and two thermal insulation sleeves (410) are respectively sleeved on the outer portions of two adjacent cylindrical batteries (300).

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