A pipeline harness layout structure and layout method for energy storage container

Abstract

The present invention relates to the field of electrochemical energy storage technology, and discloses a liquid cooling pipeline system including two integrated main pipelines for water outlet and water inlet, respectively, and a first branch pipeline for extending the main pipeline, the main pipeline and the first branch pipeline are located on the inner surface of the bottom of the battery compartment, the main pipeline is located between the battery cluster and the bottom of the battery compartment, and is arranged along the center line close to the width direction of the battery compartment, one end is connected to the liquid cooling unit, and the other end extends to the middle position of the length direction of the battery compartment, the first branch pipeline and the first wiring harness are close to the side of the battery compartment and arranged along the Y direction, the first branch pipeline is located between the outermost column in the battery compartment and the side of the battery compartment, the first wiring harness is located above the main pipeline and the first branch pipeline, and is located on the inner side of the outermost column in the battery compartment and close to the first branch pipeline. The present invention can ensure that the flow of the main pipeline is uniform, each battery pack in the battery compartment can effectively dissipate heat, improve the service life of the battery pack, and have high safety.

Description

Technical Field

[0001] The present invention relates to the technical field of electrochemical energy storage, and in particular to a pipeline harness laying structure and a laying method for an energy storage container. Background Art

[0002] At present, energy storage containers are equipped with liquid cooling piping systems, fire protection piping systems and various wiring harnesses, which are used for heat dissipation of battery packs, fire extinguishing, power transmission or signal transmission respectively. However, the current liquid cooling piping system includes a main pipe, the middle part of the first transfer pipe on the main pipe is connected to the liquid cooling unit, the first transfer pipe is arranged along the width direction of the battery compartment and close to the connection between the battery compartment and the equipment compartment of the energy storage container, and both ends of the first transfer pipe are connected to the second transfer pipe arranged along the length direction of the battery compartment and located on the outside of the battery cluster, and the first transfer pipe and the second transfer pipe are both composed of multiple pipes connected in pairs; the positions of the liquid cooling piping system, the fire protection piping system and various wiring harnesses are intersecting with each other.

[0003] The following problems exist: 1. The liquid cooling pipeline system, fire protection pipeline system and various wiring harnesses are cross-laid and easily affect each other. For example, coolant in the liquid cooling pipeline system drips onto the wiring harness, and water in the fire protection pipeline system sprays onto the wiring harness, causing the wiring harness to short-circuit, be damaged or leak electricity, reducing safety of use; 2. The current location of the main pipeline can easily cause the cooling liquid flow in the first transfer pipe to decrease successively along the length direction of the second transfer pipe, resulting in a large cooling liquid flow in the battery pack close to the first transfer tube, and a small cooling liquid flow in the battery pack far away from the first transfer tube, resulting in uneven cooling liquid flow in each battery pack, different heat dissipation efficiency, and reduced battery pack service life. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, one of the objects of the present invention is to provide a pipeline harness layout structure for an energy storage container, which can increase the service life of the battery pack, improve the safety of use, ensure uniform coolant flow in the battery pack, and effectively dissipate heat for each battery pack in the battery compartment.

[0005] The technical solution adopted by the present invention is as follows: a pipeline harness layout structure of an energy storage container, including a liquid cooling pipeline system and a first harness for electric energy transmission and signal transmission, characterized in that: the liquid cooling pipeline system includes two integrated main pipelines for water outlet and water inlet respectively, and a first branch pipeline for extending the main pipeline, the main pipeline and the first branch pipeline are located on the inner surface of the bottom of the battery compartment, the main pipeline is located between the battery cluster and the bottom of the battery compartment, and is laid along the center line close to the width direction of the battery compartment, one end is connected to the liquid cooling unit, and the other end extends to the middle position in the length direction of the battery compartment, the first branch pipeline and the first harness are both close to the side of the battery compartment and arranged along the Y direction, the first branch pipeline is located between the outermost column in the battery compartment and the side of the battery compartment, the first harness is located above the main pipeline and the first branch pipeline, and is located on the inner side of the outermost column in the battery compartment and close to the first branch pipeline.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] 1. The first wiring harness of the present invention is located above the main pipeline and the first branch pipeline. The main pipeline, the first branch pipeline and the first wiring harness are separated from each other up and down, that is, water and electricity are separated, which can prevent the leakage at the interface of the main pipeline and the first branch pipeline from dripping on the first wiring harness, prevent the wiring harness from short circuit, leakage and damage, and has high safety. The first wiring harness is located on the inner side of the outermost column in the battery compartment, and the first wiring harness and the first branch pipeline are separated from each other left and right, which can prevent the staff from touching the first wiring harness when checking and repairing the first branch pipeline, and prevent the risk of electric shock. However, the first wiring harness is close to the first branch pipeline, which can facilitate the staff to check and repair the first wiring harness;

[0008] 2. The main pipe of the present invention is arranged along the center line close to the width direction of the battery compartment, compared with the position of the conventional main pipe. The first transfer pipe of the conventional main pipe is arranged along the width direction of the battery compartment. The coolant flows out from the liquid cooling unit to the first transfer pipe and then directly splits, flowing to the two ends of the first transfer pipe respectively. After the split, the coolant flow rate gradually decreases along the length direction of the second transfer pipe. However, in this scheme, the coolant flows out from the liquid cooling unit through the main pipe to the middle position in the length direction of the battery compartment and then splits, so that the pressure difference from the split point to the first branch pipe is reduced, and the coolant flow rate flowing from the split point to the first branch pipe is more uniform, so that the battery packs located in the battery compartment can uniformly obtain the coolant, each battery pack can effectively dissipate heat, and the service life of the battery pack is improved;

[0009] 3. The main pipe of the present invention is of an integrated design. Compared with the conventional main pipe formed by connecting multiple pipes in pairs, it has good sealing, high safety and easy installation. Considering the subsequent maintenance work, the main pipe is integrated and the main pipe is located in the middle of the battery compartment. The advantages of the integrated main pipe are more prominent, which can reduce the maintenance workload of the staff.

[0010] As a preferred embodiment of the present invention, the two main pipelines are both directly opposite to the auxiliary door for installing pipelines at the connection between the battery compartment and the equipment compartment.

[0011] Beneficial effect: Since the columns have been installed in the battery compartment of the energy storage container before the main pipeline is installed, the current main pipeline can only be passed through the columns one by one, placed in the corresponding position and then connected two by two, and installed one by one. First of all, the installation workload is large, and it is placed in the battery compartment for installation. The space in the battery compartment is limited, and two people are required to cooperate in installing the pipeline, which is inconvenient for installation and increases the installation cost. Since the main pipeline in this solution includes a first conveying pipe and a second conveying pipe integrally formed with the first conveying pipe, the combination of the main pipeline and the auxiliary door, and the design of the main pipeline facing the auxiliary door enable the main pipeline to be directly integrally formed, and then it can be installed in the battery compartment directly and quickly at one time, thereby reducing the installation cost and improving the installation efficiency. Moreover, since the energy storage container includes a battery compartment and an equipment compartment, the connection between the battery compartment and the equipment compartment is closed, and it is not easy to check the condition of the battery cluster close to the equipment compartment in the battery compartment. The design of the auxiliary door also facilitates maintenance personnel to check the condition of the battery cluster close to the equipment compartment.

[0012] As a preferred embodiment of the present invention, it also includes a fire-fighting pipe system, which is located on the inner surface of the top of the battery compartment. The fire-fighting pipe system includes a cabin-level gas fire-fighting pipe, a PACK-level gas fire-fighting pipe and a water fire-fighting pipe. The cabin-level gas fire-fighting pipe, the PACK-level gas fire-fighting pipe and the water fire-fighting pipe are all arranged along the Y direction.

[0013] Beneficial effects: the liquid cooling pipeline system is located on the inner surface of the bottom of the battery compartment, and the fire fighting pipeline system is located on the inner surface of the top of the battery compartment, thereby achieving spatial separation. There is enough space to layout the liquid cooling pipeline system and the fire fighting pipeline system respectively, so that the staff can install the liquid cooling pipeline system and the fire fighting pipeline system systematically. The fire fighting pipeline system of the present invention is a three-level fire fighting pipeline subsystem, and the fire fighting scope is gradually increased from small to large, such as the inside of the battery pack and the inside of the battery compartment, and the fire fighting intensity is gradually increased from small to large, such as gas fire fighting in the battery pack, gas fire fighting in the battery compartment, and water fire fighting in the battery compartment. The step-by-step fire fighting can protect the battery pack and various components in the battery compartment and ensure all-round and effective fire fighting in the battery compartment. Specifically, for example, when the battery pack is out of control and the gas fire fighting in the battery pack cannot be controlled, the gas fire fighting in the battery compartment is started. When the fire situation cannot be effectively controlled after the gas fire fighting in the battery compartment is started, the water fire fighting in the battery compartment is started again.

[0014] As a preferred embodiment of the present invention, it also includes a second wiring harness for transmitting fire protection data in the battery pack, the second wiring harness is located on both sides of the inner surface of the top of the battery compartment, the second wiring harness is located on the outside of the PACK-level gas fire protection pipeline, the second wiring harness is located above the water fire protection pipeline nozzle and the cabin-level fire protection pipeline nozzle, and the second wiring harness is placed in a second box body.

[0015] Beneficial effects: The second wiring harness and the first wiring harness are separated in space, which can reduce the communication interference of the first wiring harness on the second wiring harness. The second wiring harness is located outside the PACK-level gas fire-fighting pipeline, and the second wiring harness and the fire-fighting pipeline system are separated left and right. The second wiring harness is located above the water fire-fighting pipeline nozzle and the cabin-level fire-fighting pipeline nozzle, and the second wiring harness and the fire-fighting pipeline system are separated up and down. In addition, the design of the second box body can prevent water in the fire-fighting pipeline from spraying onto the second wiring harness and damaging the second wiring harness.

[0016] As a preferred embodiment of the present invention, the two main pipelines are staggered up and down along the Z direction, the main pipeline includes a first delivery pipe, the first delivery pipe is located between the battery cluster and the bottom of the battery compartment, and is arranged along the center line close to the width direction of the battery compartment, one end is connected to the liquid cooling unit, the other end extends to the middle position in the length direction of the battery compartment, and two second delivery pipes are integrally formed at the other end, the two second delivery pipes are respectively connected to the first branch pipeline, the two second delivery pipes on the main pipeline are respectively located on both sides of the first delivery pipe and are staggered, the two second delivery pipes are respectively located on both sides of a row of columns on the center line in the length direction of the battery compartment, and close to the side door of the battery compartment.

[0017] Beneficial effect: The two second delivery pipes are respectively located on both sides of the first delivery pipe. When the energy storage container is symmetrically arranged with two rows of battery cluster racks with the center line of the width direction of the battery compartment as the symmetry axis, the two delivery pipes respectively provide coolant for the corresponding rows of battery cluster racks. The two second delivery pipes are on both sides and staggered, that is, there is a part of the first delivery pipe between the two second delivery pipes. At this time, the first delivery pipe and the two second delivery pipes cooperate. Compared with the conventional main pipeline, which directly diverts to both ends on the first delivery pipe and is irreversible, the amount of coolant obtained by the two second delivery pipes is different. In this solution, the coolant in the first delivery pipe is continuous. Even if there is diversion, due to the difference between the two delivery pipes The portion with the first delivery pipe in the middle can ensure that the two second delivery pipes can always obtain coolant at any time, so that the amount of coolant obtained by the two delivery pipes is uniform, so that each battery pack on each battery cluster on both sides of the battery compartment can evenly obtain coolant, effectively dissipate heat, and increase the service life of the battery pack; the second delivery pipe is located on both sides of the above-mentioned pillars, and can be located in the middle of the first branch pipe as much as possible, so that both ends of the first branch pipe can evenly obtain coolant, and one end of the second delivery pipe is close to the side door of the battery compartment. After being connected with the pipe on the first branch pipe, the staff can see the connection status of the second delivery pipe and the first branch pipe outside the side door of the battery compartment, which is convenient for the staff to check and maintain.

[0018] As a preferred embodiment of the present invention, the first wiring harness includes a high-voltage wiring harness and a low-voltage wiring harness, and the high-voltage wiring harness and the low-voltage wiring harness are respectively placed in two first boxes arranged in parallel.

[0019] Beneficial effects: The first box body can provide protection and shielding for the high-voltage wiring harness and the low-voltage wiring harness, and can prevent open flames from directly contacting the high-voltage wiring harness and the low-voltage wiring harness. In addition, the high-voltage wiring harness and the low-voltage wiring harness are placed separately in the two first box bodies, which can shield the electromagnetic waves generated by the high-voltage wiring harness, reduce the interference of the high-voltage wiring harness on the low-voltage wiring harness, and prevent affecting communication.

[0020] As a preferred embodiment of the present invention, the cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline are close to the center line of the battery compartment in the width direction, and the PACK-level gas fire-fighting pipeline is located below the cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline.

[0021] Beneficial effects: The cabin-level gas fire-fighting pipeline and water fire-fighting pipeline are responsible for fire-fighting in the entire battery compartment. When the cabin-level gas fire-fighting pipeline and water fire-fighting pipeline are close to the center line of the battery compartment in the width direction, the cabin-level gas fire-fighting pipeline and water fire-fighting pipeline can provide fire-fighting for both sides of the battery compartment; the PACK-level gas fire-fighting pipeline is located below the cabin-level gas fire-fighting pipeline and water fire-fighting pipeline, and can cooperate with the set fire-fighting level to ensure that the cabin-level gas fire-fighting pipeline and water fire-fighting pipeline can cover the PACK-level gas fire-fighting pipeline, so that the set fire-fighting level can ensure maximum fire-fighting intensity when in use.

[0022] As a preferred embodiment of the present invention, the PACK-level gas fire-fighting pipeline includes a first connecting pipe, second connecting pipes located at both ends and on the same side of the first connecting pipe, and multiple third connecting pipes arranged at intervals along the Y direction. The first connecting pipe and the cabin-level gas fire-fighting pipeline are both connected to the fire-fighting gas tank, the second connecting pipe is arranged along the Y direction, the third connecting pipe is connected to the battery pack and is located between the side of the battery compartment and the outermost column in the battery compartment, and the connection between the second connecting pipe and the third connecting pipe is located above the battery cluster.

[0023] Beneficial effects: The PACK-level gas fire-fighting pipeline serves as the first level of fire-fighting, directly providing fire-fighting for the battery pack. The connection points of the second connecting pipe and the third connecting pipe are both located above the battery cluster. The third connecting pipe is located between the side of the battery compartment and the outermost column in the battery compartment, which can facilitate the installation, inspection and maintenance of the third connecting pipe by the staff.

[0024] A second object of the present invention is to provide a pipeline harness laying method for an energy storage container, comprising the pipeline harness laying structure for the energy storage container described above, and further comprising the following contents:

[0025] Open the auxiliary door at the connection between the equipment compartment and the battery compartment, and lay out the fire-fighting pipe system. The water fire-fighting pipe is assembled into a straight line by connecting multiple sections of water pipes in pairs. The water fire-fighting pipe first passes through the auxiliary door and enters the battery compartment, then moves upward to the set position and connects to the top of the battery compartment, close to the center line of the narrow side of the battery compartment;

[0026] The cabin-level gas fire-fighting pipeline is assembled into a straight line by connecting multiple gas pipes in pairs. The cabin-level gas fire-fighting pipeline first passes through the auxiliary door to enter the battery compartment, then moves upward to the set position and connects to the top of the battery compartment, close to the center line of the narrow side of the battery compartment, and staggered with the water fire-fighting pipeline;

[0027] The first connecting pipe and the second connecting pipe are both assembled by connecting two by two multi-section air pipes. The first connecting pipe enters the battery compartment from the side of the battery compartment, the first connecting pipe reaches the set position, the first connecting pipe is located below the water fire fighting pipeline and the cabin-level gas fire fighting pipeline, the first connecting pipe is close to the connection between the battery compartment and the equipment compartment, the second connecting pipe enters the battery compartment from the side of the battery compartment, the second connecting pipe reaches the set position, the second connecting pipe is located inside the second box body, the second connecting pipe is connected to the top of the battery compartment, and the second connecting pipe is connected to the first connecting pipe;

[0028] The second wiring harness is laid out, the second box body is welded to the top of the battery compartment, and between the outermost column of the battery compartment and the side of the battery compartment, the second wiring harness is placed in the second box body, and the second wiring harness to be connected to each battery pack in the battery compartment extends out from the corresponding notch on the inner side of the second box body;

[0029] The liquid cooling pipeline system is laid out, the second delivery pipe on the main pipeline is perpendicular to the horizontal plane, one end of the main pipeline provided with the second delivery pipe first passes through the auxiliary door to enter the battery compartment, the main pipeline reaches the set position, the first delivery pipe is rotated vertically, the second delivery pipe is parallel to the horizontal plane, the main pipeline is placed on the bottom of the battery compartment, the first delivery pipe is connected to the bottom of the battery compartment, the two second delivery pipes are located on both sides of a column in the center of the width direction of the battery compartment, the second delivery pipes are respectively connected to the corresponding first delivery pipes, the first delivery pipe is connected to the fourth delivery pipe, the first delivery pipe and the fourth delivery pipe are both located between the side of the bottom of the battery compartment and the column in the battery compartment;

[0030] The first wiring harness is laid out, and the first box body is welded to the inner side of the outermost column in the battery compartment and close to the side of the battery compartment. The high-voltage wiring harness and the low-voltage wiring harness are placed in the corresponding first box bodies respectively. The first wiring harness to be connected to the high-voltage box of each battery cluster extends out from the set notch in the first box body, and the first box cover is threadedly connected to the first box body.

[0031] Beneficial effects: Each part can be modularly arranged, such as laying out the top parts of the battery compartment first, and then laying out the bottom parts of the battery compartment, so that the arrangement is orderly. Each specific part can also be modularly arranged, such as the overall arrangement of water fire-fighting pipelines, cabin-level gas fire-fighting pipelines and PACK-level gas fire-fighting pipelines, and main pipelines, which can save layout time and make layout simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the pipeline harness layout structure of the energy storage container of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the pipeline harness layout structure of the energy storage container of the present invention from another angle;

[0034] Figure 3 It is a structural schematic diagram of the pipeline harness layout structure of the energy storage container of the present invention from another angle;

[0035] Figure 4 This is a structural schematic diagram of the pipeline harness layout structure of the energy storage container of the present invention from another angle

[0036] Figure 5 It is a structural schematic diagram of the liquid cooling pipeline system and the fire protection pipeline system of the present invention;

[0037] Figure 6 It is a structural schematic diagram of the liquid cooling pipeline system and the fire protection pipeline system of the present invention from another angle;

[0038] Figure 7 It is a structural schematic diagram of the liquid cooling pipeline system and the fire protection pipeline system of the present invention from another angle;

[0039] Figure 8 It is a structural schematic diagram of the main pipeline of the present invention;

[0040] Fig. 9 It is a partial structural schematic diagram of the energy storage container of the present invention;

[0041] Fig.10 It is a schematic diagram of the structure at position A of the present invention;

[0042] Fig.11 It is a schematic diagram of the structure at position B of the present invention;

[0043] Fig.12 is a structural schematic diagram of a part of the energy storage container of the present invention from another angle;

[0044] Fig.13 is a schematic structural diagram of Embodiment 2 of the present invention;

[0045] Fig.14 It is a structural schematic diagram of another angle of embodiment 2 of the present invention. DETAILED DESCRIPTION

[0046] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0047] In the description of the present application, the terms "first", "second", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0048] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0049] Reference numerals include: main pipeline 201, first delivery pipe 2011, second delivery pipe 2012, first branch pipeline 202, third delivery pipe 2021, fourth delivery pipe 2022, PACK-level gas fire-fighting pipeline 203, first connecting pipe 2031, second connecting pipe 2032, third connecting pipe 2033, cabin-level gas fire-fighting pipeline 204, water fire-fighting pipeline 205, first connecting tube 206, second connecting tube 207, limiting ring 208, locking member 209, first connecting portion 2091, second connecting portion 2092, groove 2093, column 210;

[0050] Auxiliary door 301, first box body 302, second box body 303;

[0051] Partition 401 , first through hole 402 , track 403 , first shielding plate 404 , third slider 4041 , support assembly 405 , support block 4051 , first slider 4052 , second slider 4053 , second through hole 406 , second shielding plate 407 .

[0052] Explanation: Before laying the pipeline, the battery compartment body has been installed, and a row of columns have been laid on both sides of the center line of the battery compartment in the width direction. The adjacent columns are used to support the battery cluster. The outermost side of the battery cluster is located on the inner side of the outermost column of the battery compartment. After the main pipeline in the liquid cooling pipeline system is laid, a row of columns is laid near the side of the battery compartment. Four rows of columns are distributed in the battery compartment along the X direction. After a supporting column is laid on both sides of the width direction of the battery compartment, the first branch pipeline is laid.

[0053] Example 1

[0054] The scheme described in this invention is applied to the following energy storage container, including a battery compartment and an equipment compartment, such as Fig. 9 As shown, the sides of the battery compartment in the Y direction are provided with support columns for fixing the double-leaf doors, and double-leaf doors are provided on both sides of the support columns. The battery compartment is connected to the equipment compartment, as shown in FIG. Figure 7As shown, an auxiliary door 301 for installing pipelines is provided at the connection between the battery compartment and the equipment compartment. In this embodiment, the auxiliary door has a rectangular longitudinal section, and the auxiliary door is threadedly connected to the connection between the battery compartment and the equipment compartment. A liquid cooling unit and a fire-fighting gas tank are provided in the equipment compartment. In this embodiment, the fire-fighting gas tank contains gas, such as a high-pressure carbon dioxide fire-fighting gas tank.

[0055] like Figures 1 to 12 As shown, the energy storage container pipeline harness layout structure based on the above-mentioned energy storage container includes a liquid cooling pipeline system, a first wiring harness for power transmission and signal transmission, a fire protection pipeline system, and a second wiring harness for transmitting fire protection data in the battery pack.

[0056] like Figure 5 , Figure 7 and Figure 8 As shown, the liquid cooling pipeline system includes two integrated main pipelines 201 for water outlet and water inlet, a first branch pipeline 202 for extending the main pipeline 201, and a second branch pipeline for extending the first branch pipeline 202. The two main pipelines 201 are directly opposite to the auxiliary door 301 for installing pipelines at the connection between the battery compartment and the equipment compartment. The main pipeline 201 and the first branch pipeline 202 are located on the inner surface of the bottom of the battery compartment. The two main pipelines 201 are staggered up and down along the Z direction. In this embodiment, the main pipeline 201 for water inlet is located above the main pipeline 201 for water outlet, so that the main pipeline 201 for water inlet is closer to the battery pack. Under the same pressure, the main pipeline 201 close to the battery pack is closer to the battery pack. The battery pack can transport coolant more efficiently. The main line 201 includes a first delivery pipe 2011 and second delivery pipes 2012 located on both sides of the first delivery pipe 2011 and staggered. The first delivery pipe 2011 and the second delivery pipe 2012 are integrally formed. The first delivery pipe 2011 is located between the battery cluster and the bottom of the battery compartment, and is arranged along the center line close to the width direction of the battery compartment. One end is connected to the liquid cooling unit, and the other end extends to the middle position in the length direction of the battery compartment, and is connected to the second delivery pipe 2012 at the other end. The two second delivery pipes 2012 are respectively located on both sides of a row of columns on the center line in the length direction of the battery compartment, and close to the side double doors of the battery compartment.

[0057] The first branch pipe 202 is close to the side of the battery compartment and is arranged along the Y direction. The first branch pipe 202 is located between the outermost column 210 in the battery compartment and the side of the battery compartment. The first branch pipe 202 is T-shaped. Figure 6 As shown, the first branch pipeline 202 includes a third delivery pipe 2021 and a fourth delivery pipe 2022, the third delivery pipe 2021 is T-shaped, the third delivery pipe 2021 and the second delivery pipe 2012 are detachably connected, and the third delivery pipe 2021 and the fourth delivery pipe 2022 are detachably connected. Fig. 9As shown, the connection between the third delivery pipe 2021 and the second delivery pipe 2012 and the connection between the third delivery pipe 2021 and the fourth delivery pipe 2022 are both close to the battery compartment side double door and opposite to the battery compartment side double door.

[0058] In this embodiment, the double-doors and the support columns cooperate so that each time the double-doors are opened, a large space is exposed, and the third delivery pipe 2021 and the fourth delivery pipe 2022 can be installed in a modular manner, which facilitates the replacement of the third delivery pipe 2021 and the fourth delivery pipe 2022. The installed third delivery pipe 2021 and the fourth delivery pipe 2022 can be directly passed through the double-doors and placed in the set position in the battery compartment.

[0059] In this embodiment, 1. The third delivery pipe 2021 is T-shaped, ensuring that the section where the third delivery pipe 2021 and the main pipeline are connected is a straight line, the third delivery pipe 2021 and the main pipeline are stably connected, and the third delivery pipe 2021 and the fourth delivery pipe 2022 cooperate to deliver the coolant in the main pipeline to the location of each battery cluster in the battery compartment. One end of the third delivery pipe 2021 and one end of the fourth delivery pipe 2022 are detachably connected, and the first branch pipeline has only one joint, which has fewer joints and can reduce the number of maintenance times; 2. There are only two types of pipes, namely the third The delivery pipe 2021 and the fourth delivery pipe 2022 are convenient for the staff to distinguish. Compared with the traditional first branch pipeline, it is composed of multiple sections of delivery pipes connected in pairs, and each section of the multiple delivery pipes has a different size and slight differences. This design can save the staff the workload of selecting delivery pipes and adjusting and installing the delivery pipes multiple times; 3. The connection between the third delivery pipe 2021 and the fourth delivery pipe 2022 is close to the side door of the battery compartment and opposite to the side door of the battery compartment. The staff can check and repair it with just their hands, check for leakage, and the operation is convenient.

[0060] like Fig.10 As shown, one end where the third conveying pipe 2021 and the fourth conveying pipe 2022 are connected are respectively provided with a first connecting tube 206 and a second connecting tube 207, and the ends of the first connecting tube 206 and the second connecting tube 207 are provided with an annular limiting ring 208. When the two limiting rings 208 are fitted together, the outer periphery of the two limiting rings 208 is clamped with a locking piece 209, and the locking piece 209 includes a first connecting portion 2091 and a second connecting portion 2092, and the first connecting portion 2091 and the second connecting portion 2092 are both provided with an arc-shaped groove 2093, and the limiting ring 208 can be clamped into the groove 2093, and one end of the first connecting portion 2091 and the second connecting portion 2092 are hinged, and the other end is bolted.

[0061] In this embodiment, the first connection part 2091 is fixedly connected with a bolt at one end away from the hinged connection between the first connection part 2091 and the second connection part 2092, and the second connection part 2092 is provided with a through hole at one end away from the hinged connection between the first connection part 2091 and the second connection part 2092. The end of the bolt passing through the through hole is connected with a handle nut, and the diameter of the connection between the handle nut and the bolt is larger than the diameter of the through hole.

[0062] In this embodiment, the connection method between the second delivery pipe 2012 and the third delivery pipe 2021 is the same as the connection method between the third delivery pipe 2021 and the fourth delivery pipe 2022 .

[0063] The second branch pipes are arranged at intervals along the length direction of the first branch pipes. One end of the second branch pipes is connected to the first branch pipes, and the other end of the second branch pipes is connected to each battery pack on each battery cluster.

[0064] like Figure 1 and Figure 2 As shown, the first wiring harness is located on both sides of the battery compartment and arranged along the Y direction. The first wiring harness includes a high-voltage wiring harness and a low-voltage wiring harness. The high-voltage wiring harness and the low-voltage wiring harness are respectively placed in two first box bodies 302 arranged in parallel. The first wiring harness is located above the main pipeline 201 and the first branch pipeline 202, below the battery cluster, and is located on the inner side of the outermost column 210 in the battery compartment and close to the first branch pipeline 202.

[0065] In this embodiment, one end of the high-voltage wiring harness and the low-voltage wiring harness is connected to the electrical cabinet in the equipment compartment, and the other end is connected to the high-voltage box under each battery cluster in the battery compartment. The high-voltage wiring harness and the low-voltage wiring harness are passed under the battery cluster. Before the high-voltage wiring harness and the low-voltage wiring harness are placed in the first box body, they are covered with bellows to provide double-layer protection for the high-voltage wiring harness and the low-voltage wiring harness. The first box body is located on both sides of the battery compartment and is arranged along the Y direction. The first box body includes a first box body and a first box cover. The first box body and the first box cover are threadedly connected. The cross-section of the first box body is U-shaped, and the first box cover is provided with a plurality of notches at intervals along the Y direction. The high-voltage wiring harness and the low-voltage wiring harness are connected to the high-voltage box through the notches. The lower surface of the first box body is connected with brackets for supporting the first box body at intervals along the Y direction, and the brackets can fix the position of the first box body.

[0066] like Figure 3 and Figure 5 As shown, the fire-fighting pipe system is located on the inner surface of the top of the battery compartment. The fire-fighting pipe system includes three-level sub-fire-fighting pipe systems, namely, a PACK-level gas fire-fighting pipe 203, a cabin-level gas fire-fighting pipe 204 and a water fire-fighting pipe 205. The cabin-level gas fire-fighting pipe 204, the PACK-level gas fire-fighting pipe 203 and the water fire-fighting pipe 205 are all arranged along the Y direction. The cabin-level gas fire-fighting pipe 204 and the water fire-fighting pipe 205 are close to the center line of the narrow side of the battery compartment, and the PACK-level gas fire-fighting pipe 203 is located below the cabin-level gas fire-fighting pipe 204 and the water fire-fighting pipe 205.

[0067] like Figure 5 , Figure 6 and Figure 7 As shown, the PACK-level gas fire-fighting pipeline 203 includes a first connecting pipe 2031, second connecting pipes 2032 respectively located at both ends and on the same side of the first connecting pipe 2031, and multiple third connecting pipes 2033 arranged at intervals along the Y direction. The first connecting pipe 2031 and the cabin-level gas fire-fighting pipeline 204 are both connected to the fire-fighting gas tank, the second connecting pipe 2032 is arranged along the Y direction, the third connecting pipe 2033 is connected to the battery pack and is located between the side of the battery compartment and the outermost column 210 in the battery compartment, and the connection between the second connecting pipe 2032 and the third connecting pipe 2033 is located above the battery cluster.

[0068] like Figure 7 As shown, in this embodiment, the cabin-level gas fire-fighting pipeline 204 is in a straight line shape, one end of the cabin-level gas fire-fighting pipeline 204 is connected to the fire-fighting gas tank in the equipment cabin, and the other end is close to the narrow side opposite to the battery cabin and the equipment cabin. The cabin-level gas fire-fighting pipeline 204 and the PACK-level gas fire-fighting pipeline 203 both include multiple-section gas pipes, and adjacent gas pipes are threadedly connected with pipe joints, and the length of the gas pipe with an external thread is greater than the length of the pipe joint with an internal thread.

[0069] like Figure 7 As shown, in this embodiment, the water fire fighting pipeline 205 is in a straight line shape, one end of the water fire fighting pipeline 205 is connected to the water inlet pipeline in the equipment compartment, and the other end is close to the narrow side opposite to the battery compartment and the equipment compartment. The water fire fighting pipeline 205 and the cabin-level gas fire fighting pipeline 204 are staggered.

[0070] like Figure 3 and Figure 4 As shown, the second wiring harness is located on both sides of the inner surface of the top of the battery compartment, the second wiring harness is located on the outside of the PACK-level gas fire-fighting pipeline 203, the second wiring harness is located above the nozzle of the water fire-fighting pipeline 205 and the nozzle of the cabin-level fire-fighting pipeline, and the second wiring harness is placed in the second box body 303.

[0071] like Fig.11 As shown, in this embodiment, the second box body 303 includes a first support plate and a second support plate. The cross-sections of the first support plate and the second support plate are both L-shaped. The horizontal portion of the first support plate and the horizontal portion of the second support plate are threadedly connected. The first support plate is threadedly connected to the inner surface of the battery compartment. The vertical portion of the second support plate is close to the inside of the battery compartment. The vertical portion of the second support plate is provided with a plurality of notches at intervals along the Y direction, and the second wiring harness is connected to the battery pack through the notches.

[0072] A pipeline harness laying method for an energy storage container, based on the pipeline harness laying structure for the energy storage container described above, includes the following contents:

[0073] Open the auxiliary door 301 at the connection between the equipment compartment and the battery compartment, and lay out the fire-fighting pipe system. The water fire-fighting pipe 205 is assembled into a straight line by connecting multiple sections of water pipes in pairs. The water fire-fighting pipe 205 first passes through the auxiliary door 301 and enters the battery compartment. Then, it moves upward to the set position and is connected to the top of the battery compartment, close to the center line of the narrow side of the battery compartment.

[0074] The cabin-level gas fire-fighting pipeline 204 is assembled into a straight line by connecting multiple gas pipes in pairs. The cabin-level gas fire-fighting pipeline 204 first passes through the auxiliary door 301 to enter the battery compartment, and then moves upward to the set position and connects to the top of the battery compartment, close to the center line of the narrow side of the battery compartment, and staggered with the water fire-fighting pipeline 205;

[0075] The first connecting pipe 2031 and the second connecting pipe 2032 are both assembled by connecting two by two multi-section air pipes. The first connecting pipe 2031 enters the battery compartment from the side of the battery compartment. The first connecting pipe 2031 reaches the set position. The first connecting pipe 2031 is located below the water fire fighting pipeline 205 and the cabin-level gas fire fighting pipeline 204. The first connecting pipe 2031 is close to the connection between the battery compartment and the equipment compartment. The second connecting pipe 2032 enters the battery compartment from the side of the battery compartment. The second connecting pipe 2032 reaches the set position. The second connecting pipe 2032 is located on the inner side of the second box body 303. The second connecting pipe 2032 is connected to the top of the battery compartment. The second connecting pipe 2032 is connected to the first connecting pipe 2031;

[0076] The second wiring harness is laid out, and the second box body 303 is welded to the top of the battery compartment and between the outermost column 210 of the battery compartment and the side of the battery compartment. The second wiring harness is placed in the second box body 303, and the second wiring harness to be connected to each battery pack in the battery compartment extends from the corresponding notch on the inner side of the second box body 303;

[0077] The liquid cooling pipeline system is laid out, the second delivery pipe 2012 on the main pipeline 201 is perpendicular to the horizontal plane, the main pipeline 201 is provided with one end of the second delivery pipe 2012 which first passes through the auxiliary door 301 to enter the battery compartment, the main pipeline 201 reaches the set position, the first delivery pipe 2011 is vertically rotated, the second delivery pipe 2012 is parallel to the horizontal plane, the main pipeline 201 is placed on the bottom of the battery compartment, the first delivery pipe 2011 is connected to the bottom of the battery compartment, the two second delivery pipes 2012 are located on both sides of a column in the center of the width direction of the battery compartment, the second delivery pipe 2012 is respectively connected to the corresponding third delivery pipe 2021, the third delivery pipe 2021 is connected to the fourth delivery pipe 2022, the third delivery pipe 2021 and the fourth delivery pipe 2022 are both located between the side of the bottom of the battery compartment and the outermost column of the battery compartment;

[0078] The first wiring harness is laid out, and the first box body 302 is welded to the inner side of the outermost column 210 in the battery compartment and close to the side of the battery compartment. The high-voltage wiring harness and the low-voltage wiring harness are placed in the corresponding first box bodies 302 respectively. The first wiring harness to be connected to the high-voltage box of each battery cluster extends from the set notch of the first box body 302, and the first box cover is threadedly connected to the first box body.

[0079] Example 2

[0080] like Fig.13 and Fig.14 As shown, this embodiment is basically the same as Embodiment 1, except that a partition 401 for separating the battery compartment and the equipment compartment is provided at the connection between the battery compartment and the equipment compartment, the partition 401 is parallel to the side of the energy storage container in the width direction, and a first through hole 402 for passing through three sides for the main pipeline, the cabin-level gas fire-fighting pipeline, and the water fire-fighting pipeline is provided on the partition 401. The longitudinal section of the first through hole 402 is rectangular, and tracks 403 are provided on both sides of the first through hole 402. A first baffle plate 404 for shielding the first through hole 402 and slidingly cooperating with the surface of the partition 401 is provided on the side of the partition 401 close to the interior of the equipment compartment. In this embodiment, there is a distance between the lower end of the first baffle plate 404 and the lower end of the partition 401. When the main pipeline is connected to the liquid cooling unit, the main pipeline can pass through the first through hole 402, and a support assembly 405 is connected between the two tracks 403 and the first baffle plate 404.

[0081] The support assembly 405 can provide support for the first baffle plate 404, so that the first baffle plate 404 can effectively block the first through hole 402, ensuring that the battery compartment and the equipment compartment are in relatively independent environments. For example, the battery requires a constant temperature and moderate humidity environment, while the equipment may need to operate in a drier environment with better air flow.

[0082] The support assembly 405 includes a support block 4051, a first slider 4052 and a second slider 4053 located at both ends and on the same side of the support block 4051, the support block 4051 is rotatably connected to the first baffle plate 404, and the support block 4051 abuts against the upper end surface of the track 403. In this embodiment, the support block 4051 abuts against the upper end surface of the track 403, so that the track 403 can provide support for the support block 4051. Since the support block 4051 is connected to the first baffle plate 404, it indirectly provides support for the first baffle plate 404, ensuring that the first baffle plate 404 remains stationary at the set position. The length of the first slider 4052 is greater than the length of the second slider 4053, and the first slider 4052 and the second slider 4053 are both abutted against the track 40 3 is snap-fitted and slidably matched, and third sliders 4041 are symmetrically provided on both sides of the first baffle plate 404. The third sliders 4041 are snap-fitted and slidably matched with the track 403. The third sliders 4041 can guide the first baffle plate 404 when moving the first baffle plate 404, and can also fix the position of the first baffle plate 404 to ensure that the first baffle plate 404 and the side of the partition 401 are always in contact. In this embodiment, a connecting column is provided between the support block 4051 and the first baffle plate 404, and the connecting column is fixedly connected to the first baffle plate 404, and the connecting column is rotatably connected to the support block 4051. In this embodiment, the support assembly 405 can not only support the first baffle plate 404, but also quickly and conveniently expose the first through hole 402.

[0083] The partition 401 is provided with a second through hole 406 that penetrates on both sides just above the first through hole 402. The longitudinal section of the second through hole 406 is a rectangle. The length of the second through hole 406 in the width direction of the energy storage container is greater than the length of the support block 4051. The height of the second through hole 406 is greater than the sum of the heights of the support block 4051 and the first slider 4052. The thickness of the partition 401 is less than half of the length of the support block 4051, which can ensure that the support block 4051 can effectively rest on the side wall of the second through hole 406 after rotation. The partition 401 is hinged with a The second baffle plate 407 and the partition plate 401 are provided with a clamping column, the second baffle plate 407 is provided with an elastic block, the elastic block is provided with a third through hole, and the elastic block is clamped with the clamping column through the third through hole. In this embodiment, the first through hole 402 and the second through hole 406 are convenient for maintenance personnel to check the side of the battery cluster close to the first partition plate 401, and the second through hole 406 is also convenient for maintenance personnel to check the top of the battery cluster. The support block 4051 can also provide support for the components in the liquid cooling unit cabin, such as a wiring harness placed on it, or maintenance personnel can temporarily place the maintenance object on the support block 4051 during maintenance.

[0084] When installing the main pipeline, cabin-level gas fire-fighting pipeline, and water fire-fighting pipeline, remove the elastic block from the clamping column, rotate the second shielding plate 407 to expose the second through hole 406, and place your hands on the first slider 4052 and the second slider 4053 respectively. At this time, the first slider 4052 can be used as a handle to facilitate indirect grasping of the first shielding plate 404, and then the first slider 4052 and the second slider 4053 are driven by the hand to move upward, so that the first slider 4052 and the second slider 4053 are respectively slidably matched with the corresponding track 403. Since the support block 4051 is rotatably connected to the shielding plate, the first slider 4052 and the second slider 4053 are respectively connected to the first slider 4052 and the second slider 4053. When the first and second sliders 4052 and 4053 move upward, they first drive the support block 4051 to move together, and then indirectly drive the shielding plate to move upward through the support block 4051, exposing the lower end of the first through hole 402, and then continue to slide the first and second sliders 4052 and 4053, the first and second sliders 4052 and 4053 are separated from the track 403, and the lower end of the second slider 4053 is opposite to the second through hole 406. Since the support block 4051 is rotatably connected to the first shielding plate 404, the support block 4051 is rotated circumferentially, and the support block 4051 rests on the side wall of the second through hole 406. The first baffle plate 404 is limited to ensure that the position of the first baffle plate 404 is fixed. After the support block 4051 is rotated, the second slider 4053 is located in the battery compartment. At this time, the cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline can be modularized through the first through hole 402 (modularization means that the cabin-level gas fire-fighting pipeline is installed section by section outside the energy storage container, and then placed in the energy storage container at one time through the first through hole 402) and assembled into the battery compartment. Since the cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline must be completely placed in the battery compartment, the length of the cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline in the battery compartment is less than the length of the battery compartment. The support block 4051 is arranged in the direction of the length of the cabin and is close to the partition 401. When the cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline are installed on the inner surface of the top of the battery cabin, the support block 4051 can also provide support for the cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline. For example, when installing the cabin-level gas fire-fighting pipeline, one end of the cabin-level gas fire-fighting pipeline is placed on the support block 4051, one person holds the other end of the cabin-level gas fire-fighting pipeline, and then installs the cabin-level gas fire-fighting pipeline on the inner surface of the top of the battery cabin. Compared with the conventional method of two people lifting both ends of the cabin-level gas fire-fighting pipeline and one person installing it, this embodiment can save labor and installation costs.

[0085] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A pipeline harness layout structure for an energy storage container, comprising a liquid cooling pipeline system and a first harness for power transmission and signal transmission, characterized in that: The liquid cooling pipeline system includes two integrated main pipelines for water outlet and water inlet, respectively, and a first branch pipeline for extending the main pipeline. The main pipeline and the first branch pipeline are located on the inner surface of the bottom of the battery compartment. The main pipeline is located between the battery cluster and the bottom of the battery compartment, and is arranged along the center line close to the width direction of the battery compartment. One end is connected to the liquid cooling unit, and the other end extends to the middle position of the length direction of the battery compartment. The first branch pipeline and the first wiring harness are close to the side of the battery compartment and arranged along the Y direction. The Y direction is the length direction of the energy storage container. The first branch pipeline is located between the outermost column in the battery compartment and the side of the battery compartment. The first wiring harness is located above the main pipeline and the first branch pipeline, and is located on the inner side of the outermost column in the battery compartment and close to the first branch pipeline. The two main pipelines are directly opposite the auxiliary door for installing pipelines at the connection between the battery compartment and the equipment compartment; The first branch pipeline is T-shaped, and the first branch pipeline includes a third delivery pipe and a fourth delivery pipe. The third delivery pipe is T-shaped, and the third delivery pipe and the main pipeline are detachably connected. The third delivery pipe and the fourth delivery pipe are detachably connected. The connection between the third delivery pipe and the main pipeline and the connection between the third delivery pipe and the fourth delivery pipe are both close to the side double door of the battery compartment and opposite to the side double door of the battery compartment.

2. The pipeline harness layout structure of the energy storage container according to claim 1 is characterized in that: It also includes a fire-fighting pipe system, which is located on the inner surface of the top of the battery compartment. The fire-fighting pipe system includes three-level sub-fire-fighting pipe systems, namely PACK-level gas fire-fighting pipes, cabin-level gas fire-fighting pipes and water fire-fighting pipes. The cabin-level gas fire-fighting pipes, PACK-level gas fire-fighting pipes and water fire-fighting pipes are all arranged along the Y direction.

3. The pipeline harness layout structure of the energy storage container according to claim 2 is characterized in that: It also includes a second wiring harness for transmitting fire-fighting data in the battery pack. The second wiring harness is located on both sides of the inner surface of the top of the battery compartment, the second wiring harness is located on the outside of the PACK-level gas fire-fighting pipeline, the second wiring harness is located above the water fire-fighting pipeline nozzle and the cabin-level fire-fighting pipeline nozzle, and the second wiring harness is placed in a second box body.

4. The pipeline harness layout structure of the energy storage container according to claim 1 is characterized in that: The two main pipelines are staggered up and down along the Z direction, and the main pipeline includes a first delivery pipe, which is located between the battery cluster and the bottom of the battery compartment, and is arranged along the center line close to the width direction of the battery compartment, one end is connected to the liquid cooling unit, and the other end extends to the middle position in the length direction of the battery compartment, and two second delivery pipes are integrally formed at the other end, and the two second delivery pipes are respectively connected to the first branch pipeline, and the two second delivery pipes on the main pipeline are respectively located on both sides of the first delivery pipe and are staggered, and the two second delivery pipes are respectively located on both sides of a row of columns on the center line in the length direction of the battery compartment, and close to the side door of the battery compartment.

5. The pipeline harness layout structure of the energy storage container according to claim 1 is characterized in that: The first wiring harness comprises a high-voltage wiring harness and a low-voltage wiring harness, and the high-voltage wiring harness and the low-voltage wiring harness are respectively placed in two first boxes arranged in parallel.

6. The pipeline harness layout structure of the energy storage container according to claim 2, characterized in that: The cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline are close to the center line of the battery compartment in the width direction, and the PACK-level gas fire-fighting pipeline is located below the cabin-level gas fire-fighting pipeline and the water fire-fighting pipeline.

7. The pipeline harness layout structure of the energy storage container according to claim 2, characterized in that: The PACK-level gas fire-fighting pipeline includes a first connecting pipe, second connecting pipes located at both ends and on the same side of the first connecting pipe, and multiple third connecting pipes arranged at intervals along the Y direction. The first connecting pipe and the cabin-level gas fire-fighting pipeline are both connected to the fire-fighting gas tank, the second connecting pipe is arranged along the Y direction, the third connecting pipe is connected to the battery pack and is located between the side of the battery compartment and the outermost column in the battery compartment, and the connection between the second connecting pipe and the third connecting pipe is located above the battery cluster.

8. A method for laying pipeline harnesses of an energy storage container, characterized in that: The pipeline harness layout structure of the energy storage container comprising any one of claims 1 to 7 further comprises the following contents: Open the auxiliary door at the connection between the equipment compartment and the battery compartment, and lay out the fire-fighting pipe system. The water fire-fighting pipe is assembled into a straight line by connecting multiple sections of water pipes in pairs. The water fire-fighting pipe first passes through the auxiliary door and enters the battery compartment, then moves upward to the set position and connects to the top of the battery compartment, close to the center line of the narrow side of the battery compartment; The cabin-level gas fire-fighting pipeline is assembled into a straight line by connecting multiple gas pipes in pairs. The cabin-level gas fire-fighting pipeline first passes through the auxiliary door to enter the battery compartment, then moves upward to the set position and connects to the top of the battery compartment, close to the center line of the narrow side of the battery compartment, and staggered with the water fire-fighting pipeline; The first connecting pipe and the second connecting pipe are both assembled by connecting two by two multi-section air pipes. The first connecting pipe enters the battery compartment from the side of the battery compartment, the first connecting pipe reaches the set position, the first connecting pipe is located below the water fire fighting pipeline and the cabin-level gas fire fighting pipeline, the first connecting pipe is close to the connection between the battery compartment and the equipment compartment, the second connecting pipe enters the battery compartment from the side of the battery compartment, the second connecting pipe reaches the set position, the second connecting pipe is located inside the second box body, the second connecting pipe is connected to the top of the battery compartment, and the second connecting pipe is connected to the first connecting pipe; The second wiring harness is laid out, the second box body is welded to the top of the battery compartment, and between the outermost column of the battery compartment and the side of the battery compartment, the second wiring harness is placed in the second box body, and the second wiring harness to be connected to each battery pack in the battery compartment extends out from the corresponding notch on the inner side of the second box body; The liquid cooling pipeline system is laid out, the second delivery pipe on the main pipeline is perpendicular to the horizontal plane, one end of the main pipeline provided with the second delivery pipe first passes through the auxiliary door to enter the battery compartment, the main pipeline reaches the set position, the first delivery pipe is rotated vertically, the second delivery pipe is parallel to the horizontal plane, the main pipeline is placed on the bottom of the battery compartment, the first delivery pipe is connected to the bottom of the battery compartment, the two second delivery pipes are located on both sides of a column in the center of the width direction of the battery compartment, the second delivery pipes are respectively connected to the corresponding third delivery pipes, the third delivery pipe is connected to the fourth delivery pipe, and the third delivery pipe and the fourth delivery pipe are both located between the side of the bottom of the battery compartment and the outermost column of the battery compartment; The first wiring harness is laid out, and the first box body is welded to the inner side of the outermost column in the battery compartment and close to the side of the battery compartment. The high-voltage wiring harness and the low-voltage wiring harness are placed in the corresponding first box bodies respectively. The first wiring harness to be connected to the high-voltage box of each battery cluster extends out from the set notch in the first box body, and the first box cover is threadedly connected to the first box body.

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