Shell assembly and energy storage device

Abstract

The utility model discloses a shell assembly and an energy storage device, the shell assembly is used for the energy storage device, and the energy storage device comprises a battery module. The shell assembly comprises a box body, a baffle and a pipe body. A containing cavity used for containing the battery module is defined by the box body, and the box body is provided with a mounting hole communicated with the containing cavity. The baffle is connected to the box body and covers the mounting hole. The pipe body penetrates through the baffle and is connected with the baffle, the pipe body penetrates through the mounting hole, one end of the pipe body is located in the containing cavity, the other end of the pipe body is located outside the containing cavity, and the pipe body is used for conveying liquid. According to the scheme, the baffle can effectively cover the hole between the pipe body and the mounting hole, so that the plugging operation of filler can be omitted, the mounting efficiency of the pipe body is improved, and the sealing stability of the box body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage containers, in particular to a shell assembly and an energy storage device. Background Art

[0002] Energy storage containers are used to store electrical energy for release when needed. They can be used for balancing renewable energy generation (such as solar and wind power), energy scheduling, and emergency power backup. Energy storage containers use forced air cooling with fans, air conditioning, or liquid cooling for heat dissipation. Liquid cooling is widely used due to its high heat dissipation efficiency.

[0003] In related technologies, energy storage devices include a housing assembly and a battery module. The housing assembly comprises a box and a tube. The box has a cavity for accommodating the battery module and a mounting hole communicating with the cavity. The tube is inserted through the mounting hole, allowing liquid to circulate within and outside the cavity to dissipate heat. However, after the tube is inserted through the mounting hole, a gap exists between the tube and the mounting hole. To ensure the tightness of the box, this gap must be manually sealed with filler, resulting in low overall tube installation efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a shell assembly and an energy storage device, aiming to solve the technical problem of low installation efficiency of the pipe body.

[0005] To achieve the above objectives, the first embodiment of the present invention provides a housing assembly for an energy storage device, wherein the energy storage device includes a battery module, and the housing assembly includes:

[0006] A box body defines a cavity for accommodating the battery module, and the box body is provided with a mounting hole communicating with the cavity;

[0007] a baffle, connected to the box body and covering the mounting hole;

[0008] A tube body is provided through the baffle and connected to the baffle, the tube body is provided through the mounting hole and one end of the tube body is located in the cavity and the other end is located outside the cavity, and the tube body is used for transmitting liquid.

[0009] In some embodiments, the box body includes a side panel, the side panel is provided with the mounting hole, and the baffle is attached to the side wall of the side panel facing away from the cavity;

[0010] or,

[0011] The box body includes a side plate, the side plate is provided with the mounting hole, the baffle is arranged in the mounting hole, and the outer peripheral wall of the baffle is in contact with the peripheral wall of the mounting hole.

[0012] In some embodiments, the baffle is welded to the tube body; or, the baffle is provided with a threaded hole, the outer periphery of the tube body is provided with a connecting thread, and the tube body is threadedly connected to the threaded hole.

[0013] In some embodiments, the box body includes a side plate, the side plate is provided with the mounting hole, and the baffle is annular and fits against the side wall of the side plate away from the cavity;

[0014] There are multiple connection positions between the baffle and the side plate. The connection positions are distributed at intervals along the circumference of the mounting hole. At each connection position, the baffle presses the side plate tightly.

[0015] In some embodiments, the housing assembly includes a fastener, and at the connection position, the baffle is provided with a first through hole, and the fastener passes through the first through hole and connects to the side plate;

[0016] or,

[0017] At the connection position, the side plate is provided with a protrusion, and the baffle is provided with a first through hole. The protrusion passes through the first through hole and is riveted to the baffle.

[0018] In some embodiments, along the vertical direction, the baffle includes a first plate portion and a second plate portion arranged relatively to each other, the first plate portion is located on the upper side of the hole axis of the mounting hole, and the second plate portion is located on the lower side of the hole axis, and along the direction parallel to the hole axis, the plate body area of ​​the first plate portion is larger than the plate body area of ​​the second plate portion.

[0019] In some embodiments, the housing assembly includes a sealing gasket located between the baffle and the side plate, and at each of the connection positions, the baffle presses the sealing gasket against the side plate.

[0020] In some embodiments, the sealing gasket is arranged around the outer circumference of the tube body, the housing assembly includes a fastener, and at the connection position, the baffle is provided with a first through hole, the sealing gasket is provided with a second through hole, and the fastener passes through the first through hole and the second through hole and is connected to the housing;

[0021] or,

[0022] The sealing gasket is arranged around the outer circumference of the tube body. At the connection position, the shell is provided with a protrusion, the baffle is provided with a first through hole, and the sealing gasket is provided with a second through hole. The protrusion passes through the first through hole and the second through hole and is riveted to the baffle.

[0023] In some embodiments, the shell assembly includes a plurality of the tubes, each of which is penetrated by the mounting hole, one of the tubes is connected to the heat dissipation pipeline located in the cavity, and another of the tubes is connected to the liquid cooling equipment located outside the cavity.

[0024] A second embodiment of the present invention provides an energy storage device, comprising the housing assembly as described in the above embodiment and the battery module located in the cavity.

[0025] Compared with the prior art, the beneficial effects of the present invention include:

[0026] In the technical solution of the present invention, the shell assembly includes a box body, a baffle and a tube body. The box body defines a cavity for accommodating the battery module, and the box body is provided with a mounting hole connected to the cavity. The tube body is passed through the mounting hole, and one end of the tube body is located inside the cavity and the other end is located outside the cavity. In the prior art, after the tube body passes through the mounting hole, there is a gap between the tube body and the mounting hole. In order to ensure the sealing of the box body, it is necessary to manually use fillers to seal the gap, resulting in complicated overall installation operation of the tube body and low installation efficiency. The tube body of this solution is passed through the baffle and connected to the baffle, and the baffle is connected to the box body and covers the mounting hole, that is, the baffle of this solution can effectively cover the gap between the tube body and the mounting hole, thereby omitting the sealing operation of the filler and improving the installation efficiency of the tube body.

[0027] Furthermore, the tube body and baffle of this solution can be prefabricated and assembled in advance. Therefore, after the tube body is penetrated by the mounting hole, the baffle can directly cover the mounting hole, further improving the installation efficiency of the tube body. Furthermore, after the existing filler seals the gap between the mounting hole and the tube body, it can fail due to long-term effects such as ultraviolet rays, rain, and high and low temperatures, requiring regular maintenance. However, the baffle of this solution is minimally affected by the external environment, eliminating the need for regular maintenance and effectively improving the sealing stability of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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.

[0029] Figure 1 This is a structural diagram of an energy storage device in one embodiment of the present utility model;

[0030] Figure 2 for Figure 1 A partial enlarged schematic diagram of point A in the middle, showing the side panels, baffles and tube body;

[0031] Figure 3 A side view of an energy storage device in one embodiment of the present invention, showing a side plate and a baffle;

[0032] Figure 4 This is a structural diagram of an energy storage device in one embodiment of the present utility model;

[0033] Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle; the box, baffle and tube body are all separated;

[0034] Figure 6 This is a structural diagram of an energy storage device in one embodiment of the present utility model;

[0035] Figure 7 for Figure 6 A partial enlarged schematic diagram of point C in the middle; wherein the tube body is provided with a mounting hole, a first through hole and a second through hole.

[0036] Description of Figure Numbers:

[0037] Energy storage device 1;

[0038] Housing assembly 10;

[0039] Box body 100; cavity 110; mounting hole 120; hole peripheral wall 121; hole axis 122; side plate 130;

[0040] side wall 131;

[0041] Baffle 200; peripheral wall 210; first through hole 220; first plate portion 230; second plate portion 240;

[0042] Tube body 300;

[0043] Fastener 400;

[0044] Sealing gasket 500; second through hole 510;

[0045] Vertical X.

[0046] 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

[0047] 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 shall fall within the scope of protection of the present invention.

[0048] Energy storage containers are used to store electrical energy for release when needed. They can be used for balancing renewable energy generation (such as solar and wind power), energy scheduling, and emergency power backup. Energy storage containers use forced air cooling with fans, air conditioning, or liquid cooling for heat dissipation. Liquid cooling is widely used due to its high heat dissipation efficiency.

[0049] In related technologies, energy storage devices include a housing assembly and a battery module. The housing assembly comprises a box and a tube. The box has a cavity for accommodating the battery module and a mounting hole communicating with the cavity. The tube is inserted through the mounting hole, allowing liquid to circulate within and outside the cavity to dissipate heat. However, after the tube is inserted through the mounting hole, a gap exists between the tube and the mounting hole. To ensure the tightness of the box, this gap must be manually sealed with filler, resulting in low overall tube installation efficiency.

[0050] In view of this, the first embodiment of the present invention proposes a shell assembly 10, which can effectively improve the installation efficiency of the tube body 300. It should be noted that the shell assembly 10 is used for the energy storage device 1. The embodiment of the present application takes the energy storage device 1 as an energy storage container as an example. The energy storage device 1 includes a battery module. Figures 1 to 7 The housing assembly 10 according to an embodiment of the present application is introduced. Specifically, the housing assembly 10 includes a box body 100 , a baffle 200 and a tube body 300 .

[0051] Reference Figures 1 to 5 The housing 100 defines a cavity 110 and a mounting hole 120. The cavity 110 can accommodate the battery module, and the mounting hole 120 is used to mount the tube 300. It is understood that the mounting hole 120 is connected to the cavity 110, that is, the tube 300 can extend into the cavity 110 through the mounting hole 120. The specific structure and location of the mounting hole 120 can be determined according to actual conditions. In this embodiment, the mounting hole 120 is located at a lower position in the middle of the side panel 130 of the housing 100.

[0052] Reference Figure 2 、 Figure 5 and Figure 7 The tube 300 is used to transport liquid to cool the battery module. Specifically, the tube 300 can be inserted into the mounting hole 120. One end of the tube 300 can be located inside the cavity 110, while the other end can be located outside the cavity 110, allowing liquid to circulate inside and outside the cavity 110. It is understood that the opening size of the mounting hole 120 can be significantly larger than the outer cross-sectional dimensions of the tube 300 to facilitate installation and placement of the tube 300.

[0053] Reference Figure 5 and Figure 7The baffle 200 is used to block the gap between the tube body 300 and the mounting hole 120. Specifically, the tube body 300 can be inserted through the baffle 200 and connected to the baffle 200, that is, the baffle 200 can be arranged around the outer circumference of the tube body 300. Furthermore, the baffle 200 can be connected to the housing 100 and cover the mounting hole 120. It is understood that the baffle 200 can cover the entire gap between the tube body 300 and the mounting hole 120 along its radial direction to ensure the sealing of the housing 100.

[0054] In the technical solution of the present invention, the housing assembly 10 includes a housing 100, a baffle 200, and a tube 300. The housing 100 defines a cavity 110 for accommodating the battery module, and the housing 100 is provided with a mounting hole 120 communicating with the cavity 110. The tube 300 is passed through the mounting hole 120, with one end located within the cavity 110 and the other end located outside the cavity 110. In the prior art, a gap exists between the tube and the mounting hole after the tube is passed through the mounting hole. To ensure the sealing of the housing, the gap must be manually sealed with a filler, which complicates the overall installation of the tube and reduces installation efficiency. The tube body 300 of this solution is passed through the baffle 200 and connected to the baffle 200. The baffle 200 is connected to the box body 100 and covers the mounting hole 120. That is, this solution can effectively cover the gap between the tube body 300 and the mounting hole 120 through the baffle 200, thereby omitting the sealing operation of the filler and improving the installation efficiency of the tube body 300.

[0055] Furthermore, the tube body 300 and baffle 200 of this solution can be prefabricated and assembled in advance. Therefore, after the tube body 300 is penetrated through the mounting hole 120, the baffle 200 can directly cover the mounting hole 120, further improving the installation efficiency of the tube body 300. Furthermore, after conventional fillers seal the gap between the mounting hole 120 and the tube body 300, they can fail due to long-term effects such as ultraviolet rays, rain, and high and low temperatures, requiring regular maintenance. However, the baffle 200 of this solution is minimally affected by the external environment, eliminating the need for regular maintenance and effectively improving the sealing stability of the box body 100.

[0056] Reference Figure 6 and Figure 7 , the specific structure of the box 100 is described below. In some embodiments, the box 100 includes a side panel 130. The side panel 130 can be a panel on any side of the box 100, refer to Figure 7 In this embodiment, the side panel 130 is taken as the side panel 130 on the left side of the box body 100. The side panel 130 is provided with a mounting hole 120, that is, the tube body 300 can pass through the side panel 130 through the mounting hole 120 and extend into the cavity 110.

[0057] Reference Figure 7, the specific connection position of the side panel 130 and the baffle 200 is introduced below. In some embodiments, the baffle 200 can be attached to the side wall 131 of the side panel 130 away from the cavity 110, that is, the baffle 200 can be arranged outside the cavity 110. In other embodiments, the baffle 200 can also be attached to the side wall 131 of the side panel 130 facing the cavity 110, that is, the baffle 200 can be arranged inside the cavity 110. The embodiment of the present application is described by taking the baffle 200 attached to the side wall 131 of the side panel 130 away from the cavity 110 as an example. The baffle 200 of this solution is arranged in an open area outside the cavity 110, which can facilitate workers to carry out installation operations, reduce the difficulty of assembling the shell assembly 10, and ensure the installation efficiency of the shell assembly 10, and the arrangement of the baffle 200 attached to the side wall 131 of the side panel 130 can ensure the assembly sealing of the baffle 200 and the side panel 130.

[0058] It should be noted that in some embodiments, the baffle 200 can also be disposed in the mounting hole 120. The outer peripheral wall 210 of the baffle 200 can fit the peripheral wall 121 of the mounting hole 120. Specifically, the baffle 200 can be welded or clamped to the peripheral wall 121 of the mounting hole 120. In some embodiments, the baffle 200 can be completely accommodated in the mounting hole 120. In other embodiments, a portion of the baffle 200 can be disposed in the mounting hole 120, and another portion can extend into the cavity 110. In other embodiments, a portion of the baffle 200 can be disposed in the mounting hole 120, and another portion can extend outside the cavity 110. The specific connection position of the baffle 200 can be determined according to actual conditions.

[0059] Reference Figure 2 and Figure 5 The specific connection structure between the baffle 200 and the tube body 300 is described below. In some embodiments, the baffle 200 can be welded to the tube body 300. Specifically, the tube body 300 and the baffle 200 can be fully welded. This solution can effectively prevent the tube body 300 from separating from the baffle 200, preventing the tube body 300 from falling off the baffle 200 and thus affecting the heat dissipation performance of the housing assembly 10, while also eliminating the connection gap between the tube body 300 and the baffle 200, thereby ensuring the sealing of the housing assembly 10. In other embodiments, the baffle 200 can be threadedly connected to the tube body 300. Specifically, the baffle 200 can be provided with a threaded hole, and the outer periphery of the tube body 300 can be provided with connecting threads, and the tube body 300 can be threadedly connected to the threaded hole. This solution can achieve a detachable connection between the tube body 300 and the baffle 200, facilitating the installation, disassembly and replacement of the tube body 300. The overall connection operation is convenient and quick, and the stability of the connection between the tube body 300 and the baffle 200 can be ensured.

[0060] It should be noted that in some embodiments, the baffle 200 can be snap-fitted to the tube body 300. Specifically, a snap-fit ​​block can be provided on the outer periphery of the tube body 300, and the baffle 200 can be provided with a snap-fitting slot. The snap-fit ​​block can snap into the snap-fitting slot to stabilize the connection between the baffle 200 and the tube body 300. In other embodiments, the tube body 300 can be passed through the baffle 200 and bonded to it. The specific connection structure between the tube body 300 and the baffle 200 can be determined based on actual conditions. This embodiment of the present application uses the welding of the baffle 200 and the tube body 300 as an example for description.

[0061] Reference Figure 6 and Figure 7 , the following describes the specific connection structure of the baffle 200 and the box body 100. In some embodiments, the box body 100 includes a side plate 130, which can be a plate on any side of the box body 100, refer to Figure 7 Orientation, the embodiment of the present application takes the side panel 130 as the side panel 130 on the left side of the box body 100 as an example for explanation. The side panel 130 is provided with a mounting hole 120, that is, the tube body 300 can pass through the side panel 130 through the mounting hole 120 and extend into the cavity 110. The baffle 200 can fit the side wall 131 of the side panel 130 away from the cavity 110, that is, it can ensure the sealing performance of the baffle 200 and the side panel 130. The baffle 200 has an annular structure. It should be noted that the annular shape here refers to a through hole in the middle of the baffle 200, which can be used for the tube body 300 to pass through. It can be understood that the opening area of ​​the through hole of the baffle 200 can be smaller than the opening area of ​​the mounting hole 120.

[0062] There are multiple connection positions between the baffle 200 and the side panel 130. It should be noted that the connection position here can be the setting position of the relevant fixing part. The fixing part can connect the baffle 200 and the side panel 130. Specifically, along the circumference of the mounting hole 120, two adjacent connection positions can be arranged at intervals. It can be understood that in some embodiments, the interval between two adjacent connection positions can be a uniform interval. In other embodiments, the interval between two adjacent connection positions can also be a non-uniform interval. The specific setting of the connection position can depend on the actual situation. At each connection position, the baffle 200 can press the side panel 130. In other words, at each connection position, the baffle 200 has a pressure against the side panel 130, which can improve the stability and reliability of the connection between the baffle 200 and the side panel 130, and ensure the sealing performance of the shell assembly 10.

[0063] Reference Figure 6 and Figure 7In some embodiments, the housing assembly 10 includes a fastener 400. Specifically, the fastener 400 can be a bolt or a screw. At the connection position, the baffle 200 is provided with a first through hole 220. The fastener 400 can penetrate the first through hole 220 and then be connected to the side panel 130. It can be understood that when bolts or screws are used for connection, a threaded hole can be provided on the side of the side panel 130 close to the baffle 200. When tightening the bolts or screws, the ends of the bolts or screws can apply pressure to the baffle 200, so that the baffle 200 is pressed against the side panel 130, thereby improving the sealing performance between the baffle 200 and the side panel 130.

[0064] In some embodiments, at the connection position, a protrusion may be provided on the side of the side panel 130 facing the baffle 200. The shape of the protrusion may be cylindrical or square, etc. The baffle 200 may be provided with a first through hole 220, and the shape and structure of the first through hole 220 may be adapted to the arrangement of the protrusion. The protrusion may pass through the first through hole 220 and be riveted to the baffle 200. It is understood that when external force acts on the protrusion during riveting, the end of the protrusion may be significantly deformed due to pressure, and the deformed portion may press against the baffle 200 so that the baffle 200 is pressed tightly against the side panel 130, thereby improving the sealing between the baffle 200 and the side panel 130.

[0065] In some embodiments, the housing assembly 10 includes a pin. At the connection location, the side panel 130 may have a hole, and the baffle 200 may have a first through-hole 220. The pin can penetrate the hole in the side panel 130 and the first through-hole 220 in the baffle 200, thereby riveting the baffle 200 and side panel 130 together. It will be appreciated that after riveting, the deformed portions at both ends of the pin can clamp the baffle 200 and side panel 130 together, ensuring a tight fit between the baffle 200 and side panel 130 and improving the seal between the baffle 200 and side panel 130.

[0066] Reference Figure 6 and Figure 7 , the relative arrangement positions of the baffle 200 and the mounting hole 120 are introduced below. In some embodiments, along the vertical direction X, the baffle 200 includes a first plate portion 230 and a second plate portion 240 arranged relatively to each other. It can be understood that the first plate portion 230 can be connected to the second plate portion 240. Specifically, the first plate portion 230 can be arranged integrally with the second plate portion 240. In order to facilitate the description and distinction between the first plate portion 230 and the second plate portion 240, it is set that the mounting hole 120 has a hole axis 122 running through the interior thereof. Figure 7 The hole axis 122 can extend in the left-right direction. The portion of the plate located above the hole axis 122 is the first plate portion 230, and the portion of the plate located below the hole axis 122 is the second plate portion 240. Along a direction parallel to the hole axis 122, the plate area of ​​the first plate portion 230 can be larger than the plate area of ​​the second plate portion 240.

[0067] To facilitate the rapid insertion of the tube body 300 into the mounting hole 120, the opening area of ​​the mounting hole 120 must be larger than the outer cross-sectional area of ​​the tube body 300. After the tube body 300 has been inserted into the mounting hole 120, it is pressed against the lower wall of the mounting hole 120 by gravity. Consequently, the gap between the tube body 300 and the upper wall of the mounting hole 120 is much larger than the gap between the tube body 300 and the lower wall of the mounting hole 120. In this embodiment, the area of ​​the first plate portion 230 is larger than the area of ​​the second plate portion 240, allowing the baffle 200 to fully cover all gaps between the tube body 300 and the mounting hole 120, ensuring the sealing of the housing assembly 10.

[0068] Reference Figure 7 In some embodiments, the housing assembly 10 includes a sealing gasket 500 located between the baffle 200 and the side panel 130. At each connection point, the baffle 200 can press the sealing gasket 500 against the side panel 130. It is understood that the sealing gasket 500 can be made of a rubber-like material or a composite material. By adding the sealing gasket 500, this solution can effectively improve the sealing performance of the housing assembly 10 and ensure a good sealing effect.

[0069] Reference Figure 7 The specific connection arrangement of the sealing gasket 500 is described below. In some embodiments, the sealing gasket 500 is arranged around the outer circumference of the tube body 300. The housing assembly 10 includes a fastener 400, which can be a bolt or a screw. At the connection location, the baffle 200 is provided with a first through-hole 220, and the sealing gasket 500 is provided with a second through-hole 510. It is understood that the opening area of ​​the second through-hole 510 can be equal to the opening area of ​​the first opening. When bolts or screws are used for connection, a threaded hole can be provided on the side of the side plate 130 near the sealing gasket 500. When the bolts or screws are tightened, the ends of the bolts or screws can apply pressure to the baffle 200, that is, the baffle 200 can press the sealing gasket 500 against the side plate 130. It should be noted that the fastener 400 can pass through the first through-hole 220 and the second through-hole 510 and connect to the housing. This solution can effectively prevent the sealing gasket 500 from falling off, improve the reliability of the assembly connection of the sealing gasket 500, and ensure the sealing stability of the housing assembly 10.

[0070] In other embodiments, at the connection position, a protrusion may be provided on the side of the side plate 130 facing the baffle 200, the baffle 200 may be provided with a first through hole 220, and the sealing gasket 500 may be provided with a second through hole 510. Both the first through hole 220 and the second through hole 510 may be adapted to accommodate the protrusion arrangement. Furthermore, the protrusion passes through the first through hole 220 and the second through hole 510 and is riveted to the baffle 200. It is understood that when external force acts on the protrusion during riveting, the end of the protrusion is compressed and significantly deformed. The deformed portion can press against the baffle 200, causing the baffle 200 to press the sealing gasket 500 against the side plate 130. The protrusion of this solution passes through the baffle 200 and the sealing gasket 500, which can effectively prevent the sealing gasket 500 from falling off, that is, it can improve the reliability of the assembly connection of the sealing gasket 500, thereby ensuring the sealing stability of the housing assembly 10.

[0071] Reference Figures 2 to 5 In some embodiments, the shell assembly 10 includes a plurality of tube bodies 300, and each tube body 300 can be arranged through a mounting hole 120. It can be understood that the tube bodies 300 can be arranged at intervals, and the specific number of tube bodies 300 can be determined according to actual conditions. The embodiment of the present application is described by taking the arrangement of two tube bodies 300 as an example. Specifically, one of the tube bodies 300 can be connected to the heat dissipation pipeline, and the heat dissipation pipeline is located in the cavity 110; the other tube body 300 is connected to the liquid cooling device, and the liquid cooling device is located outside the cavity 110. Therefore, the shell assembly 10 can form a closed fluid circulation loop between the liquid cooling device and the heat dissipation pipeline through each tube body 300, that is, the liquid cooling device transports the liquid to the heat dissipation tube body 300 through the tube body 300, and the heat dissipation pipeline will perform heat exchange with the battery module in the cavity 110, absorb the heat generated by the battery module during operation, realize the heat dissipation of the battery module, and ensure the safety of the battery module operation. It should be noted that the tube body 300 can be welded to the heat dissipation pipeline to ensure the connection strength between the tube body 300 and the heat dissipation pipeline and prevent the heat dissipation pipeline from falling off the tube body 300.

[0072] In some embodiments, the side panel 130 of the housing 100 is provided with a groove, the notch of which may face the baffle 200. It is understood that the groove may be arranged around the mounting hole 120. The baffle 200 may be at least partially accommodated within the groove. Specifically, the baffle 200 may be completely accommodated within the groove, or it may be flush with the side wall 131 of the side panel 130 facing away from the cavity 110. It should be noted that in some embodiments, the side panel 130 may be directly provided with a groove. In other embodiments, the side surrounding the mounting hole 120 of the side panel 130 may be stamped to form a groove in the side panel 130, in which case a protrusion may be formed on the side of the side panel 130 facing the cavity 110. The specific shaping and arrangement of the groove may depend on actual conditions. The baffle 200 of this solution can be accommodated within the groove, which facilitates the assembly and connection of the baffle 200 with the side panel 130, improves the stability of the assembly and connection between the baffle 200 and the housing 100, and ensures the sealing of the housing 100.

[0073] In some embodiments, the housing assembly 10 includes a first flexible tube, one end of which connects to the tube body 300 and the other end of which can connect to the liquid cooling device outside the cavity 110. When connecting the liquid cooling device and the tube body 300, even if there is an installation error between the liquid cooling device and the tube body 300, the first flexible tube has excellent bendability and flexibility. That is, the first flexible tube can be bent and twisted in any direction. Thus, the first flexible tube can absorb the installation error between the liquid cooling device and the tube body 300, avoiding situations where the connection between the tube body 300 and the liquid cooling device is loose due to forced bending of the tube body 300, resulting in liquid leakage at the connection between the tube body 300 and the liquid cooling device. It also prevents structural distortion of the tube body 300 due to forced bending of the tube body 300, thereby ensuring the structural strength of the tube body 300. Therefore, the first flexible tube of this embodiment can eliminate installation errors between the tube body 300 and the liquid cooling device, improve the reliability and stability of the assembly connection between the tube body 300 and the liquid cooling device, and ensure the installation accuracy of the tube body 300 and the liquid cooling device.

[0074] It should be noted that the first flexible tube can be a metal hose. Using a metal hose can ensure its structural strength, allowing the first flexible tube to withstand large bending and twisting forces, and ensure that the first flexible tube has good thermal conductivity, thereby improving the heat dissipation effect of the first flexible tube. Furthermore, the metal hose can be a stainless steel hose.

[0075] In some embodiments, the housing assembly 10 further includes a second flexible tube. One end of the second flexible tube can be connected to the tube body 300, and the other end can be connected to the heat dissipation pipeline in the cavity 110. It is understood that the second flexible tube can be a stainless steel hose. When connecting the heat dissipation pipeline and the tube body 300, even if there is an installation error between the heat dissipation pipeline and the tube body 300, because the second flexible tube has good bendability and flexibility, that is, the second flexible tube can be bent and twisted in any direction, the second flexible tube can absorb the installation error between the heat dissipation pipeline and the tube body 300, thereby avoiding the situation where the connection between the tube body 300 and the heat dissipation pipeline is not firm due to forcibly bending the tube body 300 and the heat dissipation pipeline, causing liquid leakage at the connection between the tube body 300 and the heat dissipation pipeline, and preventing the situation where the tube body 300 is structurally deformed due to forcibly bending the tube body 300, thereby ensuring the structural strength of the tube body 300. Therefore, the second flexible tube of this solution can eliminate the installation error between the tube body 300 and the heat dissipation pipeline, improve the reliability and stability of the assembly connection between the tube body 300 and the heat dissipation pipeline, and ensure the installation accuracy of the tube body 300 and the liquid cooling equipment.

[0076] Reference Figures 1 to 7 The second embodiment of the present invention proposes an energy storage device 1, which includes a shell assembly 10 and a battery module of the above embodiment. It can be understood that the battery module is arranged in the cavity 110. The tube body 300 of this solution is passed through the baffle 200 and connected to the baffle 200. The baffle 200 is connected to the box body 100 and covers the mounting hole 120. That is, the baffle 200 of this solution can effectively cover the gap between the tube body 300 and the mounting hole 120, thereby omitting the sealing operation of the filler and improving the installation efficiency of the tube body 300. Moreover, the baffle 200 of this solution is little affected by the external environment, that is, the operation of regular maintenance can be omitted, and the sealing stability of the box body 100 can be effectively improved.

[0077] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly. When a directional reference is introduced in a specific embodiment, if the direction is not specifically limited to unidirectional, the direction can be unidirectional or bidirectional (two directions parallel to each other and opposite to each other). Whether it is unidirectional or bidirectional is based on what a person of ordinary skill in the art can achieve. When the directional reference is bidirectional, it should be considered that two different embodiments are introduced in parallel.

[0078] 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.

[0079] 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 for an energy storage device, wherein the energy storage device includes a battery module, characterized in that: The housing assembly comprises: A box body defines a cavity for accommodating the battery module, and the box body is provided with a mounting hole communicating with the cavity; a baffle, connected to the box body and covering the mounting hole; A tube body is provided through the baffle and connected to the baffle, the tube body is provided through the mounting hole and one end of the tube body is located in the cavity and the other end is located outside the cavity, and the tube body is used for transmitting liquid.

2. The housing assembly according to claim 1, wherein: The box body includes a side plate, the side plate is provided with the mounting hole, and the baffle is attached to the side wall of the side plate away from the cavity; or, The box body includes a side plate, the side plate is provided with the mounting hole, the baffle is arranged in the mounting hole, and the outer peripheral wall of the baffle is in contact with the peripheral wall of the mounting hole.

3. The housing assembly according to claim 1, wherein: The baffle is welded to the tube body; or, the baffle is provided with a threaded hole, the outer periphery of the tube body is provided with a connecting thread, and the tube body is threadedly connected to the threaded hole.

4. The housing assembly according to claim 1, wherein: The box body includes a side plate, the side plate is provided with the mounting hole, and the baffle is annular and fits against the side wall of the side plate away from the cavity; There are multiple connection positions between the baffle and the side plate. The connection positions are distributed at intervals along the circumference of the mounting hole. At each connection position, the baffle presses the side plate tightly.

5. The housing assembly according to claim 4, wherein: The housing assembly includes a fastener. At the connection position, the baffle is provided with a first through hole. The fastener passes through the first through hole and is connected to the side plate. or, At the connection position, the side plate is provided with a protrusion, and the baffle is provided with a first through hole. The protrusion passes through the first through hole and is riveted to the baffle.

6. The housing assembly according to claim 4, wherein: Vertically, the baffle includes a first plate portion and a second plate portion arranged relatively to each other, the first plate portion is located on the upper side of the hole axis of the mounting hole, and the second plate portion is located on the lower side of the hole axis. Along the direction parallel to the hole axis, the plate body area of ​​the first plate portion is larger than the plate body area of ​​the second plate portion.

7. The housing assembly according to claim 4, wherein: The housing assembly includes a sealing gasket located between the baffle and the side plate, and at each of the connection positions, the baffle presses the sealing gasket against the side plate.

8. The housing assembly according to claim 7, wherein: The sealing gasket is arranged around the outer circumference of the tube body, and the housing assembly includes a fastener. At the connection position, the baffle is provided with a first through hole, and the sealing gasket is provided with a second through hole. The fastener passes through the first through hole and the second through hole and is connected to the housing; or, The sealing gasket is arranged around the outer circumference of the tube body. At the connection position, the shell is provided with a protrusion, the baffle is provided with a first through hole, and the sealing gasket is provided with a second through hole. The protrusion passes through the first through hole and the second through hole and is riveted to the baffle.

9. The housing assembly according to claim 1, wherein: The shell assembly includes a plurality of tubes, each of which is penetrated by the mounting hole, one tube is connected to the heat dissipation pipeline located in the cavity, and another tube is connected to the liquid cooling device located outside the cavity.

10. An energy storage device, characterized in that It comprises the shell assembly according to any one of claims 1 to 9 and the battery module located in the cavity.

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