Shell assembly, heat dissipation system and energy storage equipment

Abstract

The utility model relates to the technical field of energy storage container manufacturing, in particular to a shell assembly, a heat dissipation system and energy storage equipment. The shell assembly comprises a box body, a heat dissipation pipeline and a communication pipeline assembly, the box body is provided with an energy storage area and a heat dissipation area, the box body comprises a partition plate used for separating the energy storage area and the heat dissipation area, the partition plate is provided with a conduction opening communicating the energy storage area and the heat dissipation area, the energy storage area is suitable for containing a battery module, and the heat dissipation area is suitable for containing liquid cooling equipment. The heat dissipation pipeline is arranged in the energy storage area, the communication pipeline assembly comprises a first pipe body and a second pipe body, the first pipe body penetrates through the communication opening, the end, located in the energy storage area, of the first pipe body communicates with the heat dissipation pipeline, the end, located in the heat dissipation area, of the first pipe body communicates with the second pipe body, and the end, away from the first pipe body, of the second pipe body communicates with the liquid cooling equipment. The second pipe body is a flexible pipe. The heat dissipation system comprises the shell assembly. The energy storage equipment comprises the heat dissipation system. According to the utility model, installation errors of pipelines and equipment can be eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage container manufacturing, in particular to a shell component, a heat dissipation system and an energy storage device. Background Art

[0002] With the development of China's national energy strategy and adjustments to its energy industry structure, my country's energy storage industry is experiencing a positive trend of diversified development. The application of lithium-ion battery energy storage has become increasingly commonplace and commercialized in various locations. However, a significant issue inherent in lithium-ion battery energy storage is its high heat generation. Safety is paramount, and heat dissipation is essential to ensure proper battery operation.

[0003] At present, the main methods used in the battery cooling system of energy storage containers include fan forced air cooling, air conditioning forced air cooling, liquid cooling, etc. Compared with other air cooling methods such as fan forced air cooling and air conditioning forced air cooling, liquid cooling is widely used due to its high heat dissipation efficiency.

[0004] In liquid cooling, cooling pipes connect the cooling equipment to the battery modules. Depending on the available space, the cooling pipes are typically secured to the container chassis first, followed by the cooling equipment. Finally, the pipes are connected and secured to the cooling equipment. However, due to inevitable installation errors, precise alignment of the cooling pipes and the cooling equipment may not be achieved. Forcibly bending the cooling pipes to connect them to the cooling equipment can cause leakage at the joints. Utility Model Content

[0005] The main purpose of the present invention is to provide a housing assembly, a heat dissipation system and an energy storage device, aiming to solve the technical problem that it is difficult to achieve accurate positioning of existing liquid cooling pipes and liquid cooling equipment during installation.

[0006] To achieve the above objectives, the present invention provides a housing assembly, which includes:

[0007] A box body, the box body having an energy storage area and a heat dissipation area, the box body including a partition for separating the energy storage area and the heat dissipation area, the partition being provided with a conducting port connecting the energy storage area and the heat dissipation area, the energy storage area being suitable for accommodating a battery module of an energy storage device, and the heat dissipation area being suitable for accommodating a liquid cooling device of the energy storage device;

[0008] a heat dissipation pipeline, the heat dissipation pipeline being arranged in the energy storage area and being suitable for heat exchange with the battery module;

[0009] a connecting pipe assembly, the connecting pipe assembly comprising a first pipe body and a second pipe body, the first pipe body being disposed through the conducting port, the end of the first pipe body located in the energy storage area being connected to the heat dissipation pipe, the end of the first pipe body located in the heat dissipation area being connected to the second pipe body, and the end of the second pipe body facing away from the first pipe body being connected to the liquid cooling device;

[0010] Wherein, the second tube body is a flexible tube.

[0011] In some embodiments, the connecting pipe assembly includes a connecting plate, the first pipe body is passed through the connecting plate, and the connecting plate is attached to the partition and covers the conducting port.

[0012] In some embodiments, the connecting plate is attached to a side of the partition facing away from the energy storage area.

[0013] In some embodiments, the first tube is welded to the connecting plate;

[0014] Alternatively, the outer wall of the first tube body is provided with a first connecting thread, and the connecting plate is provided with a second connecting thread, and the first connecting thread and the second connecting thread are adapted to connect the first tube body to the connecting plate.

[0015] In some embodiments, the connecting pipe assembly includes a third pipe body, one end of the third pipe body is connected to the end of the second pipe body away from the first pipe body, and the end of the third pipe body away from the second pipe body is connected to the liquid cooling device;

[0016] Wherein, the third tube body is a rigid tube.

[0017] In some embodiments, the connecting pipe assembly includes a fourth pipe, one end of which is connected to the end of the first pipe away from the second pipe, and the end of the fourth pipe away from the first pipe is connected to the heat dissipation pipe;

[0018] Wherein, the fourth tube body is a flexible tube.

[0019] In some embodiments, the length L of the second tube satisfies: 50 cm ≤ L ≤ 150 cm.

[0020] In some embodiments, the partition is provided with a ventilation hole connecting the energy storage area and the heat dissipation area, and the ventilation hole is provided with a ventilation fan.

[0021] In some embodiments, the second tube is connected to the side wall of the box through a connector.

[0022] Correspondingly, the present invention also proposes a heat dissipation system, comprising:

[0023] The housing assembly described in any of the above embodiments;

[0024] A liquid cooling device is provided in the heat dissipation area of ​​the shell component, and the liquid cooling device is connected to the heat dissipation pipeline of the shell component through the connecting pipeline component of the shell component.

[0025] Correspondingly, the present invention also proposes an energy storage device, comprising:

[0026] The heat dissipation system described in any of the above embodiments;

[0027] A battery module is provided in the energy storage area of ​​the shell assembly, and the battery module is suitable for heat exchange with the heat dissipation pipeline of the shell assembly.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] In the technical solution of the present invention, when assembling the shell assembly, the connecting pipe assembly can be first connected at the conducting port, and the first tube body of the connecting pipe assembly is passed through the conducting port, that is, one end of the first tube body is placed in the energy storage area, and the other end of the first tube body is placed in the heat dissipation area, and at the same time, the second tube body of the connecting pipe assembly is placed in the heat dissipation area; then, in the energy storage area, one end of the first tube body is connected to the heat dissipation pipe, and in the heat dissipation area, the end of the second tube body facing away from the first tube body is connected to the liquid cooling device; thereby finally, the connecting pipe assembly is used to form a connected and closed fluid circulation loop between the liquid cooling device and the heat dissipation pipe, so that the liquid cooling device can transport the refrigerant to the heat dissipation pipe through the connecting pipe assembly, and the heat dissipation pipe will exchange heat with the battery module in the energy storage area, absorb the heat generated by the battery module during operation, realize the heat dissipation of the battery module, and ensure the working safety of the battery module.

[0030] Furthermore, since the second tube body is a flexible tube, the second tube body has good bendability and flexibility. When the liquid cooling device and the connecting pipe assembly are connected, even if there is an installation error between the liquid cooling device and the connecting pipe assembly, since the second tube body can be bent in any direction, the second tube body can absorb the installation error between the liquid cooling device and the connecting pipe assembly without forcibly connecting the liquid cooling device and the connecting pipe assembly together, thereby avoiding the situation where the connection between the connecting pipe assembly and the liquid cooling device is loose due to forcibly bending the connecting pipe assembly, causing leakage of refrigerant at the connection between the connecting pipe assembly and the liquid cooling device, or avoiding the overall structural distortion of the connecting pipe assembly due to forcibly bending the connecting pipe assembly, affecting the structural strength of the connecting pipe assembly.

[0031] The present connecting pipe assembly can utilize the flexible second pipe body to eliminate installation errors between the connecting pipe assembly and the liquid cooling device, ensuring precise alignment and connection between the connecting pipe assembly and the liquid cooling device. The housing assembly provided by the present utility model helps reduce the installation difficulty between the connecting pipe assembly and the liquid cooling device, improves the installation accuracy between the connecting pipe assembly and the liquid cooling device, and ensures the installation reliability between the connecting pipe assembly and the liquid cooling device.

[0032] The heat dissipation system and energy storage device using the above-mentioned shell assembly can ensure the connection accuracy between the liquid cooling pipeline and the liquid cooling device in the system and the device, and eliminate the installation error between the liquid cooling pipeline and the liquid cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 An isometric view of the overall structure of a housing assembly provided in one embodiment of the present invention;

[0035] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0036] Figure 3 A cross-sectional view of the overall structure of a housing assembly provided in one embodiment of the present utility model;

[0037] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0038] Figure 5 This is a schematic diagram of the connection relationship between the connecting pipe assembly and the partition in the shell assembly provided by one embodiment of the present utility model.

[0039] Description of Figure Numbers:

[0040] 100, box body;

[0041] 110, energy storage area; 120, heat dissipation area; 130, partition;

[0042] 131. Conducting port; 132. Ventilation port; 133. Ventilation fan;

[0043] 200, heat dissipation pipeline;

[0044] 300, connecting pipe assembly;

[0045] 310. First pipe body; 320. Second pipe body; 330. Third pipe body; 340. Fourth pipe body; 350. Connecting plate;

[0046] 400. Connectors.

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] With the development of China's national energy strategy and adjustments to its energy industry structure, my country's energy storage industry is experiencing a positive trend of diversified development. The application of lithium-ion battery energy storage has become increasingly commonplace and commercialized in various locations. However, a significant issue inherent in lithium-ion battery energy storage is its high heat generation. Safety is paramount, and heat dissipation is essential to ensure proper battery operation.

[0052] At present, the main methods used in the battery cooling system of energy storage containers include fan forced air cooling, air conditioning forced air cooling, liquid cooling, etc. Compared with other air cooling methods such as fan forced air cooling and air conditioning forced air cooling, liquid cooling is widely used due to its high heat dissipation efficiency.

[0053] In liquid cooling, cooling pipes connect the cooling equipment to the battery modules. Depending on the available space, the cooling pipes are typically secured to the container chassis first, followed by the cooling equipment. Finally, the pipes are connected and secured to the cooling equipment. However, due to inevitable installation errors, precise alignment of the cooling pipes and the cooling equipment may not be achieved. Forcibly bending the cooling pipes to connect them to the cooling equipment can cause leakage at the joints.

[0054] Based on this, in order to solve the technical problem that it is difficult to achieve accurate positioning of existing liquid cooling pipes and liquid cooling equipment during installation, refer to Figures 1 to 5 An embodiment of the present invention provides a housing assembly, which includes a housing 100, a heat dissipation pipe 200, and a connecting pipe assembly 300. The housing 100 has an energy storage area 110 and a heat dissipation area 120. The housing 100 includes a partition 130 for separating the energy storage area 110 and the heat dissipation area 120. The partition 130 is provided with a conducting port 131 connecting the energy storage area 110 and the heat dissipation area 120. The energy storage area 110 is suitable for accommodating a battery module of an energy storage device, and the heat dissipation area 120 is suitable for accommodating The liquid cooling device for the energy storage device has a heat dissipation pipe 200 disposed in the energy storage area 110. The heat dissipation pipe 200 is suitable for heat exchange with the battery module. The connecting pipe assembly 300 includes a first tube 310 and a second tube 320. The first tube 310 is disposed through the conducting port 131. The end of the first tube 310 located within the energy storage area 110 is connected to the heat dissipation pipe 200, and the end located in the heat dissipation area 120 is connected to the second tube 320. The end of the second tube 320 facing away from the first tube 310 is connected to the liquid cooling device. The second tube 320 is a flexible tube.

[0055] Specifically, in this embodiment, when assembling the shell assembly, the connecting pipe assembly 300 can be first connected at the conducting port 131, and the first tube body 310 of the connecting pipe assembly 300 is passed through the conducting port 131, that is, one end of the first tube body 310 is placed in the energy storage area 110, and the other end of the first tube body 310 is placed in the heat dissipation area 120, and at the same time, the second tube body 320 of the connecting pipe assembly 300 is placed in the heat dissipation area 120; then, in the energy storage area 110, one end of the first tube body 310 is connected to the heat dissipation pipe 200. In the heat dissipation area 120, the end of the second tube body 320 facing away from the first tube body 310 is connected to the liquid cooling device; thereby, the connecting pipe assembly 300 is finally used to form a connected and closed fluid circulation loop between the liquid cooling device and the heat dissipation pipe 200, so that the liquid cooling device can transport the refrigerant to the heat dissipation pipe 200 through the connecting pipe assembly 300. The heat dissipation pipe 200 will exchange heat with the battery module in the energy storage area 110, absorb the heat generated by the battery module during operation, realize the heat dissipation of the battery module, and ensure the working safety of the battery module.

[0056] Furthermore, since the second tube body 320 is a flexible tube, the second tube body 320 has good bendability and flexibility. When the liquid cooling device and the connecting pipe assembly 300 are connected, even if there is an installation error between the liquid cooling device and the connecting pipe assembly 300, since the second tube body 320 can be bent in any direction, the second tube body 320 can absorb the installation error between the liquid cooling device and the connecting pipe assembly 300 without forcibly connecting the liquid cooling device and the connecting pipe assembly 300 together, thereby avoiding the situation where the connection between the connecting pipe assembly 300 and the liquid cooling device is not firm due to forcibly bending the connecting pipe assembly 300, resulting in leakage of refrigerant at the connection between the connecting pipe assembly 300 and the liquid cooling device, or avoiding the situation where the overall structure of the connecting pipe assembly 300 is deformed due to forcibly bending the connecting pipe assembly 300, affecting the structural strength of the connecting pipe assembly 300.

[0057] This connecting pipe assembly 300 utilizes the flexible second pipe body 320 to eliminate installation errors with the liquid cooling device, ensuring precise alignment between the connecting pipe assembly 300 and the liquid cooling device. The housing assembly provided in this embodiment reduces the installation difficulty between the connecting pipe assembly 300 and the liquid cooling device, improves the installation accuracy between the connecting pipe assembly 300 and the liquid cooling device, and ensures reliable installation between the connecting pipe assembly 300 and the liquid cooling device.

[0058] Furthermore, in some embodiments, the second tube 320 may be a metal hose. The use of a metal hose can ensure the structural strength of the second tube 320, allowing the second tube 320 to withstand certain bending and twisting. At the same time, it can also ensure that the second tube 320 has good thermal conductivity, effectively improving the heat dissipation effect of the second tube 320. For example, the metal hose here may be a stainless steel hose. Since liquid such as refrigerant will flow into the second tube 320, the second tube 320 will be in a humid working environment for a long time. The use of stainless steel can effectively improve the corrosion resistance of the second tube 320, thereby increasing the service life of the second tube 320.

[0059] Furthermore, in some embodiments, the first tube body 310 and the heat dissipation pipe 200 can be welded together to ensure the connection strength between the first tube body 310 and the heat dissipation pipe 200 and prevent the heat dissipation pipe 200 from falling off the first tube body 310; the first tube body 310 and the second tube body 320 can be welded together to ensure the connection strength between the first tube body 310 and the second tube body 320 and prevent the second tube body 320 from falling off the first tube body 310; the second tube body 320 and the liquid cooling device can be welded together to ensure the connection strength between the second tube body 320 and the liquid cooling device and prevent the second tube body 320 from falling off the liquid cooling device.

[0060] Further, in some embodiments, referring to Figures 1 to 5 The connecting pipe assembly 300 may include multiple first pipes 310 and multiple second pipes 320. The multiple first pipes 310 are intermittently arranged through the conducting port 131, and the multiple second pipes 320 are respectively connected to the multiple liquid inlets or multiple liquid outlets of the liquid cooling device. The multiple first pipes 310 and multiple second pipes 320 connect the liquid cooling device and the heat dissipation pipe 200, forming multiple fluid circulation loops between the liquid cooling device and the heat dissipation pipe 200, further improving the heat dissipation efficiency and effect of the battery module.

[0061] In some embodiments, reference Figure 5 The connecting pipe assembly 300 includes a connecting plate 350 , the first tube 310 is passed through the connecting plate 350 , and the connecting plate 350 is attached to the partition 130 and covers the conducting port 131 .

[0062] Specifically, in this embodiment, to ensure the sealing of the energy storage area 110, the conducting port 131 needs to be completely blocked. If the first tube 310 is directly inserted into the conducting port 131, the opening size of the conducting port 131 needs to be designed to be smaller to ensure the sealing of the energy storage area 110. For example, the diameter of the conducting port 131 can be the same as the diameter of the first tube 310. In this installation scenario, due to the small working space between the first tube 310 and the conducting port 131, it is not convenient to manually connect the first tube 310 and the conducting port 131, resulting in inconvenient installation and difficult operation between the first tube 310 and the conducting port 131.

[0063] The first tube body 310 is first passed through the connecting plate 350, and then the connecting plate 350 is connected to the conducting port 131. No matter how large the opening size of the conducting port 131 is designed, the connecting plate 350 can be used to fit the partition 130 and cover the conducting port 131 to achieve overall sealing of the conducting port 131. Therefore, the opening size of the conducting port 131 can be designed to be larger. In the above installation scenario, it is beneficial to increase the working space between the connecting plate 350 and the conducting port 131, thereby facilitating manual connection of the connecting plate 350 and the conducting port 131, making installation between the connecting plate 350 and the conducting port 131 convenient and simple to operate.

[0064] Furthermore, in some embodiments, the first tube 310 and the connecting plate 350 can be prefabricated and assembled in advance at a processing factory. In this way, at the installation site of the housing assembly, the connecting plate 350 can be directly covered with the conducting opening 131, thereby improving the installation efficiency of the housing assembly and saving the installation time of the housing assembly. For example, the connecting plate 350 can be welded to the conducting opening 131.

[0065] In some embodiments, reference Figure 5 The connecting plate 350 is attached to the side of the partition 130 facing away from the energy storage area 110.

[0066] Specifically, in this embodiment, to ensure the safety of the battery module, the energy storage area 110 is generally a closed area, while to ensure the heat dissipation effect of the heat dissipation area 120, the heat dissipation area 120 is generally an open area. It is understood that open areas are more convenient for workers to operate in than closed areas. Therefore, placing the connecting plate 350 on the side of the partition 130 facing away from the energy storage area 110 makes it easier for workers to connect the connecting plate 350 to the conductive opening 131, thereby reducing the difficulty of assembling the housing assembly.

[0067] In some embodiments, the first tube body 310 is welded to the connecting plate 350. For example, the first tube body 310 and the connecting plate 350 may be fully welded.

[0068] By welding the first tube body 310 to the connecting plate 350, on the one hand, it is helpful to improve the connection strength between the first tube body 310 and the connecting plate 350, and prevent the connection between the first tube body 310 and the connecting plate 350 from cracking, causing the first tube body 310 to fall off the connecting plate 350 and affect the heat dissipation of the shell assembly; on the other hand, it is helpful to eliminate the connection gap between the first tube body 310 and the connecting plate 350, thereby ensuring the sealing of the energy storage area 110.

[0069] Alternatively, the outer wall of the first tube body 310 is provided with a first connecting thread, and the connecting plate 350 is provided with a second connecting thread. The first connecting thread and the second connecting thread are adapted to connect the first tube body 310 to the connecting plate 350 .

[0070] By threading the first tube body 310 to the connecting plate 350, on the one hand, it is beneficial to improve the connection strength between the first tube body 310 and the connecting plate 350, and prevent cracking at the connection between the first tube body 310 and the connecting plate 350, which causes the first tube body 310 to fall off the connecting plate 350; on the other hand, it is beneficial to realize the installation, disassembly and replacement of the first tube body 310 on the connecting plate 350, so that a lossless connection is achieved between the first tube body 310 and the connecting plate 350.

[0071] In some embodiments, reference Figures 1 to 5 The connecting pipe assembly 300 includes a third pipe 330. One end of the third pipe 330 is connected to the end of the second pipe 320 away from the first pipe 310. The end of the third pipe 330 away from the second pipe 320 is connected to the liquid cooling device. The third pipe 330 is a rigid pipe.

[0072] Specifically, in this embodiment, the flexible tube's body can bend, resulting in greater water resistance when the refrigerant flows within the flexible tube. In contrast, the rigid tube's body does not bend, resulting in less water resistance when the refrigerant flows within the rigid tube. Therefore, to improve the smooth flow of the refrigerant within the tube, the length of the flexible tube in the connecting pipe assembly 300 is reduced. As a result, in the connecting pipe assembly 300, only the second tube 320 is a flexible tube, while the first tube 310 and the third tube 330 are both rigid tubes. This structure ensures that the second tube 320 can absorb installation errors between the liquid cooling device and the connecting pipe assembly 300, while the first tube 310 and the third tube 330 can reduce the overall water resistance of the connecting pipe assembly 300.

[0073] In some embodiments, reference Figures 1 to 5The connecting pipe assembly 300 includes a fourth pipe 340. One end of the fourth pipe 340 is connected to the end of the first pipe 310 facing away from the second pipe 320. The end of the fourth pipe 340 facing away from the first pipe 310 is connected to the heat dissipation pipe 200. The fourth pipe 340 is a flexible pipe. For example, the fourth pipe 340 can be a stainless steel metal hose.

[0074] Specifically, in this embodiment, since the fourth tube body 340 is a flexible tube, the fourth tube body 340 has good bendability and flexibility. When the heat dissipation pipe 200 and the connecting pipe assembly 300 are connected, even if there is an installation error between the heat dissipation pipe 200 and the connecting pipe assembly 300, since the fourth tube body 340 can be bent in any direction, the fourth tube body 340 can absorb the installation error between the heat dissipation pipe 200 and the connecting pipe assembly 300, and will not force the heat dissipation pipe 200 and the connecting pipe assembly 300 to be connected together, thereby avoiding the situation where the connection between the connecting pipe assembly 300 and the heat dissipation pipe 200 is not firm due to forcibly bending the connecting pipe assembly 300, resulting in leakage of refrigerant at the connection between the connecting pipe assembly 300 and the heat dissipation pipe 200, or avoiding the situation where the overall structure of the connecting pipe assembly 300 is deformed due to forcibly bending the connecting pipe assembly 300, affecting the structural strength of the connecting pipe assembly 300.

[0075] The present connecting pipe assembly 300 utilizes the flexible fourth pipe body 340 to eliminate installation errors with the heat dissipation pipe 200, ensuring precise alignment and connection between the connecting pipe assembly 300 and the heat dissipation pipe 200. The housing assembly provided in this embodiment reduces the difficulty of installing the connecting pipe assembly 300 and the heat dissipation pipe 200, improves the installation accuracy between the connecting pipe assembly 300 and the heat dissipation pipe 200, and ensures reliable installation between the connecting pipe assembly 300 and the heat dissipation pipe 200.

[0076] In some embodiments, reference Figure 5 The length L of the second tube 320 satisfies: 50 cm ≤ L ≤ 150 cm. For example, the value of L can be 50 cm, 80 cm, 100 cm, 130 cm, 150 cm, etc.

[0077] Specifically, in this embodiment, since the second tube body 320 is a flexible tube, the length of the flexible second tube body 320 is set within the above range. On the one hand, it is possible to avoid the length of the second tube body 320 being too short. For example, the length of the second tube body 320 is set to 10 cm, 20 cm, 30 cm, etc., which makes the bending degree of the second tube body 320 limited, resulting in the second tube body 320 being unable to fully absorb the installation error between the connecting pipe assembly 300 and the liquid cooling device, which is not convenient for improving the connection between the connecting pipe assembly 300 and the liquid cooling device. On the other hand, it can prevent the length of the second tube 320 from being too long. For example, the length of the second tube 320 is set to 200 cm, 250 cm, 300 cm, etc., so that the second tube 320 has an excessive bending section, which makes the second tube 320 unable to be completely straightened, resulting in an increase in the overall water resistance of the connecting pipe assembly 300, which is not conducive to the circulation of chilled water between the liquid cooling device and the heat dissipation pipe 200 through the connecting pipe assembly 300, thereby reducing the heat dissipation effect of the battery module.

[0078] In some embodiments, reference Figure 5 The length L1 of the fourth tube 340 satisfies: 50 cm ≤ L1 ≤ 150 cm. For example, the value of L1 can be 50 cm, 80 cm, 100 cm, 130 cm, 150 cm, etc.

[0079] Specifically, in this embodiment, since the fourth tube 340 is a flexible tube, the length of the flexible fourth tube 340 is set within the above range. On the one hand, it is possible to avoid the length of the fourth tube 340 being too short. For example, the length of the fourth tube 340 is set to 10 cm, 20 cm, 30 cm, etc., which limits the bending degree of the fourth tube 340, resulting in the fourth tube 340 being unable to fully absorb the installation error between the connecting pipe assembly 300 and the heat dissipation pipe 200, which is not convenient for improving the connection between the connecting pipe assembly 300 and the heat dissipation pipe 200. On the other hand, it can prevent the length of the fourth tube 340 from being too long. For example, the length of the fourth tube 340 is set to 200 cm, 250 cm, 300 cm, etc., so that the fourth tube 340 has an excessive bending section, which makes the fourth tube 340 unable to be completely straightened, resulting in an increase in the overall water resistance of the connecting pipe assembly 300, which is not conducive to the circulation of chilled water between the liquid cooling device and the heat dissipation pipe 200 through the connecting pipe assembly 300, thereby reducing the heat dissipation effect of the battery module.

[0080] In some embodiments, reference Figure 1 The partition 130 is provided with a ventilation hole 132 connecting the energy storage area 110 and the heat dissipation area 120 , and the ventilation hole 132 is provided with a ventilation fan 133 .

[0081] Specifically, in this embodiment, the shell assembly adopts a heat dissipation method that combines liquid cooling and air cooling. On the one hand, the heat in the energy storage area 110 can be absorbed by the liquid cooling pipeline, so that the energy storage area 110 can achieve a cooling effect. On the other hand, direct heat exchange between the energy storage area 110 and the external environment can be achieved through the ventilation fan 133, which also achieves a cooling effect in the energy storage area 110.

[0082] In some embodiments, reference Figures 1 to 5 The second tube 320 is connected to the side wall of the box body 100 through the connecting piece 400.

[0083] Specifically, in this embodiment, since the second tube body 320 is a flexible tube, the second tube body 320 may shake. If the second tube body 320 shakes, the water resistance of the connecting pipe assembly 300 may increase, which is not conducive to the flow of the refrigerant in the connecting pipe assembly 300. Therefore, it is necessary to connect and fix the second tube body 320 to the side wall of the box body 100 through the connecting piece 400 to ensure that the second tube body 320 does not shake.

[0084] Exemplarily, for example, the connecting member 400 can be a clamp. When the clamp is used to connect and fix the second tube body 320 to the side wall of the box body 100, the second tube body 320 is first placed between the two clamping springs of the clamp to achieve the connection between the second tube body 320 and the clamp, and then the clamp is fixed to the side wall of the box body 100 with bolts, thereby completing the fixation of the second tube body 320 on the side wall of the box body 100.

[0085] Correspondingly, another embodiment of the present invention provides a heat dissipation system, comprising the housing assembly of any of the above embodiments. The heat dissipation system further comprises a liquid cooling device, which is disposed in the heat dissipation area 120 of the housing assembly and communicates with the heat dissipation pipe 200 of the housing assembly via the connecting pipe assembly 300 of the housing assembly.

[0086] Specifically, in this embodiment, the heat dissipation system using the above-mentioned housing assembly can ensure the connection accuracy between the liquid cooling pipeline and the liquid cooling device in the system and eliminate the installation error between the liquid cooling pipeline and the liquid cooling device.

[0087] Correspondingly, another embodiment of the present invention provides an energy storage device, comprising the heat dissipation system of any of the above embodiments. The energy storage device also includes a battery module, which is disposed in the energy storage area 110 of the housing assembly and is suitable for heat exchange with the heat dissipation pipe 200 of the housing assembly.

[0088] Specifically, in this embodiment, the energy storage device using the above-mentioned heat dissipation system can ensure the connection accuracy between the liquid cooling pipeline in the device and the liquid cooling device, and eliminate the installation error between the liquid cooling pipeline and the liquid cooling device.

[0089] Thanks to the improvement of the above-mentioned shell assembly, the heat dissipation system and energy storage device of this embodiment have the same technical effects as the above-mentioned shell assembly, which will not be repeated here.

[0090] It should be noted that other contents of the housing assembly, heat dissipation system and energy storage device disclosed in the present invention can be found in the prior art and will not be described in detail here.

[0091] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A housing assembly, characterized in that: include: A box body, the box body having an energy storage area and a heat dissipation area, the box body including a partition for separating the energy storage area and the heat dissipation area, the partition being provided with a conducting port connecting the energy storage area and the heat dissipation area, the energy storage area being suitable for accommodating a battery module of an energy storage device, and the heat dissipation area being suitable for accommodating a liquid cooling device of the energy storage device; a heat dissipation pipeline, the heat dissipation pipeline being arranged in the energy storage area and being suitable for heat exchange with the battery module; a connecting pipe assembly, the connecting pipe assembly comprising a first pipe body and a second pipe body, the first pipe body being disposed through the conducting port, the end of the first pipe body located in the energy storage area being connected to the heat dissipation pipe, the end of the first pipe body located in the heat dissipation area being connected to the second pipe body, and the end of the second pipe body facing away from the first pipe body being connected to the liquid cooling device; Wherein, the second tube body is a flexible tube.

2. The housing assembly according to claim 1, wherein: The connecting pipe assembly includes a connecting plate, the first pipe body is passed through the connecting plate, and the connecting plate is attached to the partition and covers the conducting port.

3. The housing assembly according to claim 2, wherein: The connecting plate is attached to a side of the partition facing away from the energy storage area.

4. The housing assembly according to claim 2, wherein: The first tube body is welded to the connecting plate; Alternatively, the outer wall of the first tube body is provided with a first connecting thread, and the connecting plate is provided with a second connecting thread, and the first connecting thread and the second connecting thread are adapted to connect the first tube body to the connecting plate.

5. The housing assembly according to claim 1, wherein: The connecting pipe assembly includes a third pipe body, one end of the third pipe body is connected to the end of the second pipe body away from the first pipe body, and the end of the third pipe body away from the second pipe body is connected to the liquid cooling device; Wherein, the third tube body is a rigid tube.

6. The housing assembly according to claim 1, wherein: The connecting pipe assembly includes a fourth pipe body, one end of the fourth pipe body is connected to the end of the first pipe body away from the second pipe body, and the end of the fourth pipe body away from the first pipe body is connected to the heat dissipation pipe; Wherein, the fourth tube body is a flexible tube.

7. The housing assembly according to claim 1, wherein: The length L of the second tube satisfies: 50 cm ≤ L ≤ 150 cm.

8. The housing assembly according to claim 1, wherein: The partition is provided with a ventilation hole communicating with the energy storage area and the heat dissipation area, and the ventilation hole is provided with a ventilation fan.

9. The housing assembly according to any one of claims 1 to 8, characterized in that: The second tube body is connected to the side wall of the box body through a connecting piece.

10. The heat dissipation system is characterized in that: include: The housing assembly according to any one of claims 1 to 9; A liquid cooling device is provided in the heat dissipation area of ​​the shell component, and the liquid cooling device is connected to the heat dissipation pipeline of the shell component through the connecting pipeline component of the shell component.

11. Energy storage device, characterized in that include: The heat dissipation system according to claim 10; A battery module is provided in the energy storage area of ​​the shell assembly, and the battery module is suitable for heat exchange with the heat dissipation pipeline of the shell assembly.

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