Battery pack and vehicle

Abstract

The present invention discloses a battery pack and a vehicle thereof, wherein the battery pack includes an upper cooling tube, a box body, a water inlet pipe, a water outlet pipe and a plurality of battery cells, a first connecting column and a second connecting column are arranged in the box body, a cooling pipeline is formed in the base of the box body, one end of the upper cooling tube is connected to the top of the first connecting column, and is communicated with the cooling pipeline through a pipe in the first connecting column, the other end of the upper cooling tube is connected to the top of the second connecting column, and is sealed and connected to the opening of a groove opened at the top of the second connecting column; the water inlet pipe and the water outlet pipe are both arranged on the outer wall of the box body, the water inlet pipe is communicated with the cooling pipeline, and the water outlet pipe is communicated with the upper cooling tube through the groove; a plurality of battery cells are arranged in the box body and are located between the upper cooling tube and the cooling pipeline. According to the battery pack of the present invention, the upper cooling tube can be quickly and conveniently installed and removed, which is convenient for handling the battery cells between the upper cooling tube and the cooling pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of battery thermal management, and in particular to a battery pack and a vehicle thereof. Background Art

[0002] At present, the driving device of the car is usually a power battery pack, which includes several battery cells. When the power battery pack is driving the car, the battery cells will generate a lot of heat in the working state. If the heat dissipation measures are not taken in time, the battery cells will be damaged, and the damage of any battery cell will cause the damage of the entire power battery pack, thereby affecting the normal operation of the car. Therefore, a cooling component should be provided in the power battery pack to absorb the heat generated by the battery cells when they are working and play a role in heat dissipation. The current method of installing the cooling component is relatively complicated. If you want to maintain the battery pack or replace the battery cells in the battery pack, you need to remove multiple parts in the cooling component before you can operate it. At the same time, when the cooling component is damaged, it is also very inconvenient to replace the cooling component. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a battery pack that can quickly and conveniently remove or install a cooling tube.

[0004] The invention also provides a car.

[0005] In a first aspect, an embodiment of the present invention provides a battery pack: comprising: an upper cooling tube;

[0006] A box body, wherein a first connecting column and a second connecting column are arranged in the box body, a cooling pipeline is formed in the base of the box body, a pipe is arranged in the first connecting column, and the pipe is arranged in a vertical direction, one end of the upper cooling pipe is connected to the top of the first connecting column and is communicated with one end of the cooling pipeline through the pipe, a groove arranged in the vertical direction is opened on the top of the second connecting column, and the other end of the upper cooling pipe is connected to the top of the second connecting column and is sealed and connected to the opening of the groove;

[0007] A water inlet pipe, the end of which is disposed on the outer wall of the box body, and the water inlet pipe is connected to the cooling pipeline;

[0008] A water outlet pipe, the end of which is arranged on the outer wall of the box body, and the water outlet pipe is connected with the upper cooling pipe through the groove;

[0009] A plurality of battery cells are arranged in the box and located between the upper cooling tube and the cooling pipeline.

[0010] The battery pack of the embodiment of the present invention has at least the following beneficial effects: the present invention adopts a battery pack, which can be installed at the top of the first connecting column and the second connecting column respectively by opening a pipe arranged in the vertical direction in the first connecting column of the box body, and one end of the upper cooling pipe is connected to one end of the cooling pipeline through the pipe; the top of the second connecting column is provided with a groove arranged in the vertical direction, the other end of the upper cooling pipe is sealed and connected to the opening of the groove, and the upper cooling pipe is connected to the water outlet pipe through the groove, the cooling pipeline is connected to the water inlet pipe, and a plurality of battery cells are arranged in the box body and located between the upper cooling pipe and the cooling pipeline. According to the battery pack of the present invention, a cooling system loop is formed between the water inlet pipe, the cooling pipeline, the first connecting column, the upper cooling pipe, the second connecting column and the water outlet pipe, and the coolant flows in the cooling loop, thereby dissipating the heat of the battery cells arranged between the cooling pipeline and the upper water cooling pipe. Since the pipes and the grooves are arranged in the vertical direction, the two ends of the upper cooling pipe are respectively installed on the top of the first connecting column and the second connecting column, so that when removing or installing the upper cooling pipe, the operation can be directly performed in the vertical direction, so that the upper cooling pipe can be removed and installed quickly and conveniently; at the same time, only the upper cooling pipe needs to be removed to operate the battery cell, and the process is convenient and quick.

[0011] In the battery pack according to some other embodiments of the present invention, a plurality of heat dissipation ribs are provided in the cooling pipeline, and the heat dissipation ribs are arranged at intervals in the cooling pipeline.

[0012] According to some other embodiments of the battery pack of the present invention, a connecting channel is provided in the second connecting column, the connecting channel is located below the groove, and the cooling pipeline is connected to the water inlet pipe through the connecting channel.

[0013] According to some other embodiments of the battery pack of the present invention, the upper cooling tube and the cooling pipeline are both configured as U-shaped tubes.

[0014] In battery packs according to some other embodiments of the present invention, the water outlet pipe is located directly above the water inlet pipe.

[0015] According to some other embodiments of the battery pack of the present invention, a first mounting block and a second mounting block are respectively provided at both ends of the upper cooling tube, a first plug-in portion is provided at the bottom of the first mounting block, and a second plug-in portion is provided at the bottom of the second mounting block, the first mounting block is inserted into the tube through the first plug-in portion, and the second mounting block is inserted into the groove through the second plug-in portion.

[0016] According to some other embodiments of the battery pack of the present invention, a first through hole is provided in the first mounting block, and a second through hole is provided in the second mounting block, and both the first through hole and the second through hole are arranged in an L shape, a horizontal portion of the first through hole is connected to one end of the upper cooling tube, a vertical portion of the first through hole passes through the first plug-in portion, a horizontal portion of the second through hole is connected to the other end of the upper cooling tube, and a vertical portion of the second through hole passes through the second plug-in portion.

[0017] According to other embodiments of the battery pack of the present invention, the sealing ring is respectively arranged at the matching position between the first plug-in portion and the pipe and at the matching position between the second plug-in portion and the groove.

[0018] In the battery pack according to some other embodiments of the present invention, one end of the upper cooling tube is bent upward into an S-shape and connected to the second mounting block.

[0019] In a second aspect, an embodiment of the present invention provides a car: comprising a battery pack according to an embodiment of the first aspect of the present invention.

[0020] The automobile of the embodiment of the present invention has at least the following beneficial effects: by adopting the above-mentioned battery pack to drive the automobile to run, a cooling system loop is formed between the water inlet pipe, the cooling pipeline, the first connecting column, the upper cooling pipe, the second connecting column and the water outlet pipe in the battery pack, and the cooling pipeline, the first connecting column and the second connecting column are all arranged on the box body, and the ends of the water inlet pipe and the water outlet pipe are also arranged on the outside of the box body; the battery cell is arranged in the box body and is located between the upper cooling pipe and the cooling pipeline. If the battery cell needs to be operated, it can be achieved by directly disassembling the upper cooling pipe, and the upper cooling pipe can be directly disassembled and installed in the vertical direction. The operation is simple and quick, and the maintenance of the battery pack is convenient, so that the automobile adopting the battery pack has a longer cruising range and improves the service life of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an exploded schematic diagram of a cooling assembly and a box body in a battery pack in a first embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of a cooling assembly and a box body in a battery pack in a first embodiment of the present invention;

[0023] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0024] Figure 4 It is a schematic structural diagram of a box body of a battery pack in the first embodiment of the present invention.

[0025] Reference numerals:

[0026] The upper cooling pipe 110, the first mounting block 111, the second mounting block 112, the first plug-in portion 113, the second plug-in portion 114, the box body 120, the base 121, the heat dissipation ribs 122, the first connecting column 123, the pipe 124, the second connecting column 125, the groove 126, the connecting channel 127, the second through hole 128, the water inlet pipe 130, the water outlet pipe 140, and the sealing ring 150. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments to clearly and completely describe the concept of the present invention and the technical effects produced, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0028] In the description of the embodiments of the present invention, if orientation descriptions are involved, the orientations or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected to the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself, and if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] Reference below Figures 1 to 4 A battery pack according to an embodiment of the first aspect of the present invention is described.

[0031] like Figures 1 to 4 As shown, the battery pack according to the first embodiment of the present invention includes: an upper cooling tube 110, a box body 120, a water inlet pipe 130, a water outlet pipe 140 and a plurality of battery cells.

[0032] A first connecting column 123 and a second connecting column 125 are provided in the box body 120, a cooling pipeline is formed in the base 121 of the box body 120, a pipe 124 is provided in the first connecting column 123, and the pipe 124 is arranged in the vertical direction, one end of the upper cooling pipe 110 is connected to the top of the first connecting column 123, and is communicated with one end of the cooling pipeline through the pipe 124, a groove 126 arranged in the vertical direction is opened on the top of the second connecting column 125, and the other end of the upper cooling pipe 110 is connected to the top of the second connecting column 125, and is sealed and connected to the opening of the groove 126; the end of the water inlet pipe 130 is provided on the outer wall of the box body 120, and the water inlet pipe 130 is communicated with the cooling pipeline; the end of the water outlet pipe 140 is provided on the outer wall of the box body 120, and the water outlet pipe 140 is communicated with the upper cooling pipe 110 through the groove 126; a plurality of battery cells are arranged in the box body 120 and are located between the upper cooling pipe 110 and the cooling pipeline.

[0033] Specifically, a cooling system loop is formed between the water inlet pipe 130, the cooling pipeline, the first connecting column 123, the upper cooling pipe 110, the second connecting column 125 and the water outlet pipe 140. The water inlet pipe 130 is connected to the cooling pipeline, and the upper cooling pipe 110 and the water outlet pipe 140 are connected through the groove 126 on the second connecting column 125. The coolant absorbs heat from the battery cell through the cooling system, thereby playing a role in heat dissipation; the channel between the groove 126 in the second connecting column 125 and the water outlet pipe 140 is L-shaped, that is, the opening of the groove 126 is arranged in the vertical direction, so that the upper cooling pipe 110 can be directly installed on the second connecting column 125 in the vertical direction, and the upper cooling pipe 110 is connected to the groove 126, and the coolant flows from the upper cooling pipe 110 to the groove 126 and flows out from the water outlet pipe 140. Since the first connecting column 123 and the second connecting column 125 are arranged on the inner wall of the box body 120, and the cooling pipeline is arranged in the base 121 of the box body 120, if it is necessary to process the battery cell located between the upper cooling pipe 110 and the cooling pipeline, it is only necessary to remove the upper cooling pipe 110 from the first connecting column 123 and the second connecting column 125 to achieve the action of processing the battery cell. The pipe 124 in the first connecting column 123 is arranged in the vertical direction, and the groove 126 on the second connecting column 125 is arranged in the vertical direction, so that the upper cold water pipe can be directly installed on the first connecting column 123 and the second connecting column 125 respectively in the vertical direction, which is convenient for the removal and installation of the upper cooling pipe 110 without the need to remove additional devices.

[0034] In some embodiments of the present invention, a plurality of heat dissipation ribs 122 are disposed in the cooling pipeline, and the heat dissipation ribs 122 are disposed at intervals in the cooling pipeline. Figure 2 and Figure 4As shown, a plurality of heat dissipation ribs 122 are arranged at intervals in the cooling pipeline. Specifically, by arranging a plurality of heat dissipation ribs 122 at intervals in the cooling pipeline, the flow direction of the coolant is bent, so that the flow time of the coolant in the cooling pipeline is prolonged, and more heat is absorbed, thereby improving the heat dissipation efficiency of the cooling pipeline.

[0035] In some embodiments of the present invention, a connecting channel 127 is provided in the second connecting column 125, and the connecting channel 127 is located below the groove 126, and the cooling pipeline is connected to the water inlet pipe 130 through the connecting channel 127. Figure 2 and Figure 4 As shown, a connecting channel 127 is provided in the second connecting column 125, and the connecting channel 127 is located below the groove 126, and the cooling pipeline is connected to the water inlet pipe 130 through the connecting channel 127. Specifically, by providing the connecting channel 127 below the groove 126, and also providing the connecting channel 127 in the second connecting column 125, the groove 126 and the connecting channel 127 are not connected to each other, and the water inlet pipe 130 is provided at a position corresponding to the second connecting column 125, so that the cooling pipeline and the water inlet pipe 130 can be connected through the connecting channel 127, so that the coolant enters the cooling pipeline faster under the action of gravity and absorbs the heat emitted by the battery cells on the cooling pipeline.

[0036] In some embodiments of the present invention, the upper cooling pipe 110 and the cooling pipeline are both configured in a U shape. Figure 1 and Figure 2 As shown, the upper cooling pipe 110 and the cooling pipeline are both set to a U shape. Specifically, by setting the upper cooling pipe 110 and the cooling pipeline to a U shape, the upper cooling pipe 110 and the cooling pipeline can be better covered on the battery cell, and at the same time, a good water-cooled heat dissipation circuit can be formed between the cooling pipe, the connecting column, the water inlet pipe 130 and the water outlet pipe 140. In addition, by setting the upper cooling pipe 110 and the cooling pipeline to a U shape, the pipe section length of the upper cooling pipe 110 and the length of the cooling pipeline can be increased, and the contact area between the upper cooling pipe 110 and the cooling pipeline and the battery cell is increased, and the flow time of the coolant in the upper cooling pipe 110 and the cooling pipeline is increased, thereby increasing the time for the coolant to absorb heat and improving the heat dissipation effect of the upper cold water pipe and the cooling pipeline. It is conceivable that the upper cold water pipe and the cooling pipeline can also be set to an S shape to increase the pipe section length of the upper cooling pipe 110 and the length of the cooling pipeline, thereby improving the heat dissipation effect of the upper cooling pipe 110 and the cooling pipeline. In this embodiment, setting the upper cooling pipe 110 and the cooling pipeline to a U shape is not a specific limitation of the present invention.

[0037] In some embodiments of the present invention, the water outlet pipe 140 is located directly above the water inlet pipe 130. For example, Figure 1 and Figure 2As shown, the water outlet pipe 140 is located directly above the water inlet pipe 130. Specifically, by arranging the water outlet pipe 140 directly above the water inlet pipe 130, the upper cooling pipe 110 is also located above the cooling pipeline. The coolant enters from the water inlet pipe 130, passes through the cooling pipeline, the first connecting column 123, and the upper cooling pipe 110 in sequence, and then flows out from the water outlet pipe 140 to form a heat dissipation loop. At the same time, since the upper cooling pipe 110 is integrally formed with the bottom of the box body 120, that is, it is located at the innermost side of the box body 120, when the battery cell is installed in the box body 120, the heat near the cooling pipeline is more difficult to dissipate than the heat at the upper cooling pipe 110. The coolant entering from the cooling pipeline can improve the heat dissipation effect at the cooling pipeline, thereby ensuring the use efficiency of the battery pack.

[0038] In some embodiments of the present invention, the upper cooling pipe 110 is further provided with a first mounting block 111 and a second mounting block 112 at both ends, a first plug-in portion 113 is provided at the bottom of the first mounting block 111, and a second plug-in portion 114 is provided at the bottom of the second mounting block 112. The first mounting block 111 is inserted into the pipe 124 through the first plug-in portion 113, and the second mounting block 112 is inserted into the groove 126 through the second plug-in portion 114. For example, Figure 1 and Figure 2 As shown, a first plug-in portion 113 is provided at the bottom of the first mounting block 111, and a second plug-in portion 114 is provided at the bottom of the second mounting block 112. The first mounting block 111 is inserted into the pipe 124 through the first plug-in portion 113, and the second mounting block 112 is inserted into the groove 126 through the second plug-in portion 114. Specifically, since it is difficult to install the upper cooling pipe 110 itself on the first connecting column 123 and the second connecting column 125, the first mounting block 111 and the second mounting block 112 are respectively provided at both ends of the upper cooling pipe 110, so that one end of the upper cooling pipe 110 can be installed on the first connecting column 123 through the first mounting block 111, and the other end can be installed on the second connecting column 125 through the second mounting block 112. A first plug-in portion 113 is provided at the bottom of the first mounting block 111, so that the first mounting block 111 can be inserted into the pipe 124 through the first plug-in portion 113, thereby facilitating the installation of one end of the upper cooling pipe 110 on the first connecting column 123; a second plug-in portion 114 is provided at the bottom of the second mounting block 112, so that the second mounting block 112 can be inserted into the groove 126 through the second plug-in portion 114, thereby facilitating the installation of the other end of the upper cooling pipe 110 on the second connecting column 125.

[0039] In some embodiments of the present invention, a first through hole is provided in the first mounting block 111, a second through hole 128 is provided in the second mounting block 112, the first through hole and the second through hole 128 are both provided in an L shape, the horizontal portion of the first through hole is connected to one end of the upper cooling pipe 110, the vertical portion of the first through hole passes through the first plug-in portion 113, the horizontal portion of the second through hole 128 is connected to the other end of the upper cooling pipe 110, and the vertical portion of the second through hole 128 passes through the second plug-in portion 114. For example, Figure 1 As shown, the second through hole 128 is set to be L-shaped, the horizontal part of the second through hole 128 is connected to the other end of the upper cooling pipe 110, and the vertical part of the second through hole 128 passes through the second plug-in part 114. Specifically, the first through hole and the second through hole 128 are both set to be L-shaped, and the horizontal part of the first through hole is connected to one end of the upper cooling pipe 110, and the vertical part of the first through hole passes through the first plug-in part 113, so that the coolant in the cooling pipeline can flow into the upper cooling pipe 110 after passing through the first plug-in part 113 and the first through hole in sequence; and the horizontal part of the second through hole 128 is connected to the other end of the upper cooling pipe 110, and the vertical part of the second through hole 128 passes through the first plug-in part, so that the coolant in the upper cooling pipe 110 can flow into the water outlet pipe 140 after passing through the second through hole 128 and the second plug-in part 114 in sequence, and flow out from the water outlet pipe 140. At the same time, a plurality of connecting holes are opened on the first mounting block 111 and the second mounting block 112, and a plurality of bolt holes are opened on the upper surfaces of the first connecting column 123 and the second connecting column 125. The connecting holes correspond to the threaded holes one by one. The first mounting block 111 is installed on the first connecting column 123 by bolt connection, and the second mounting block 112 is installed on the second connecting column 125 by bolt connection. The openings of the threaded holes are arranged in the vertical direction, so as to facilitate the upper cooling pipe 110 to be directly disassembled or installed in the vertical direction.

[0040] In some embodiments of the present invention, a plurality of sealing rings 150 are further included. The sealing rings 150 are respectively disposed at the matching position between the first plug-in portion 113 and the pipe 124 and at the matching position between the second plug-in portion 114 and the groove 126. Figure 2 and Figure 3As shown, four sealing rings 150 are provided at the matching position of the second plug-in portion 114 and the groove 126. Specifically, by respectively providing four sealing rings 150 at the matching position of the first plug-in portion 113 and the pipe 124, and at the matching position of the second plug-in portion 114 and the groove 126, the first plug-in portion 113 can be more firmly matched with the pipe 124, so that the first mounting block 111 at one end of the upper cooling pipe 110 can be more firmly installed on the first connecting column 123; the second plug-in portion 114 can also be more firmly matched with the groove 126, so that the second mounting block 112 at the other end of the upper cooling pipe 110 can be more firmly installed on the second connecting column 125, thereby ensuring the sealing effect of the cooling circuit.

[0041] In some embodiments of the present invention, one end of the upper cooling pipe 110 is bent upward into an S-shape and connected to the second mounting block 112. Figure 1 and Figure 2 As shown, one end of the upper cooling tube 110 is bent upward into an S shape and connected to the second mounting block 112. Specifically, since the upper cooling tube 110 needs to be in contact with a number of battery cells after installation, there are requirements for the installation position of the upper cooling tube 110. In this embodiment, the top of the water outlet pipe 140 and the second connecting column 125 are both located above the upper cooling tube 110. Therefore, the upper cooling tube 110 needs to be bent upward into an S shape and connected to the second mounting block 112, and installed above the second connecting column 125 through the second mounting block 112.

[0042] It is understandable that, according to actual needs, in other embodiments, if the water outlet pipe 140 and the top of the second connecting column 125 correspond to the position of the upper cooling pipe 110, the upper cooling pipe 110 can also be directly connected to the second mounting block 112 and installed above the second connecting column 125 through the second mounting block 112. Therefore, bending one end of the upper cooling pipe 110 upward into an S shape is not a specific limitation of the present invention.

[0043] The automobile according to the second embodiment of the present invention comprises the battery pack according to the first embodiment of the present invention.

[0044] According to the automobile of the second aspect of the embodiment of the present invention, the above-mentioned battery pack is used to drive the automobile to run. Since a cooling system loop is formed between the water inlet pipe 130, the cooling pipeline, the first connecting column 123, the upper cooling pipe 110, the second connecting column 125 and the water outlet pipe 140 in the battery pack, and the cooling pipeline, the first connecting column 123 and the second connecting column 125 are all arranged on the box body 120, and the ends of the water inlet pipe 130 and the water outlet pipe 140 are also arranged on the outside of the box body 120; the battery cell is arranged in the box body 120 and is located between the upper cooling pipe 110 and the cooling pipeline. If the battery cell needs to be operated, it can be achieved by directly disassembling the upper cooling pipe 110, and the upper cooling pipe 110 can be directly disassembled and installed in the vertical direction, the operation is simple and quick, and the maintenance of the battery pack is convenient, so that the automobile using the battery pack has a longer cruising range and improves the service life of the automobile.

[0045] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A battery pack, characterized in that: include: Upper cooling pipe; A box body, wherein a first connecting column and a second connecting column are arranged in the box body, a cooling pipeline is formed in the base of the box body, a pipe is arranged in the first connecting column, and the pipe is arranged in a vertical direction, one end of the upper cooling pipe is detachably connected to the top of the first connecting column, and is communicated with one end of the cooling pipeline through the pipe, and a groove arranged in the vertical direction is opened on the top of the second connecting column, and the other end of the upper cooling pipe is detachably connected to the top of the second connecting column, and is sealed and connected to the opening of the groove; A water inlet pipe, the water inlet pipe is arranged on the outer wall of the box body, and the water inlet pipe is connected to the cooling pipeline; A water outlet pipe, the water outlet pipe is arranged on the outer wall of the box body, and the water outlet pipe is connected with the upper cooling pipe through the groove; A plurality of battery cells are arranged in the box and located between the upper cooling tube and the cooling pipeline.

2. The battery pack according to claim 1, characterized in that: A plurality of heat dissipation ribs are arranged in the cooling pipeline, and the heat dissipation ribs are arranged at intervals in the cooling pipeline.

3. The battery pack according to claim 1, characterized in that: A connecting channel is provided in the second connecting column, and the connecting channel is located below the groove. The cooling pipeline is connected to the water inlet pipe through the connecting channel.

4. The battery pack according to claim 1, characterized in that: The upper cooling pipe and the cooling pipeline are both arranged in a U shape.

5. The battery pack according to claim 1, characterized in that: The water outlet pipe is located directly above the water inlet pipe.

6. The battery pack according to claim 1, characterized in that: The two ends of the upper cooling pipe are respectively provided with a first mounting block and a second mounting block, the bottom of the first mounting block is provided with a first plug-in portion, the bottom of the second mounting block is provided with a second plug-in portion, the first mounting block is inserted into the pipe through the first plug-in portion, and the second mounting block is inserted into the groove through the second plug-in portion.

7. The battery pack according to claim 6, characterized in that: A first through hole is provided in the first mounting block, and a second through hole is provided in the second mounting block. Both the first through hole and the second through hole are arranged in an L shape. The horizontal portion of the first through hole is connected to one end of the upper cooling pipe, and the vertical portion of the first through hole passes through the first plug-in portion. The horizontal portion of the second through hole is connected to the other end of the upper cooling pipe, and the vertical portion of the second through hole passes through the second plug-in portion.

8. The battery pack according to claim 6, characterized in that: It also includes a plurality of sealing rings, which are respectively arranged at the matching position between the first plug-in portion and the pipe and at the matching position between the second plug-in portion and the groove.

9. The battery pack according to claim 6, characterized in that: One end of the upper cooling pipe is bent upward into an S shape and connected to the second mounting block.

10. An automobile, characterized in that: Comprising a battery pack according to any one of claims 1 to 9.

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