Housing assembly, electrical module and energy storage device

Abstract

The invention discloses a shell assembly, an electrical module and energy storage equipment. The shell assembly comprises a shell and a fan arranged on the shell. The shell comprises a front wall and a rear wall which are oppositely arranged in the first direction, a first side wall and a second side wall which are oppositely arranged in the second direction, and a top wall and a bottom wall which are oppositely arranged in the third direction, and the first direction, the second direction and the third direction are perpendicular to one another. The top wall comprises a first opening, and the first side wall comprises a second opening; the shell comprises a first containing space and an air channel, the first containing space is located between the front wall and the rear wall in the first direction, the air channel is located on the side, back to the first containing space, of the rear wall, and the air channel communicates with the outer space of the shell, the first opening and the second opening. The fan is configured to drive airflow to flow into the air duct through one of the first opening and the second opening and flow out of the air duct through the other of the first opening and the second opening. The air flow flowing range is expanded, the heat dissipation effect is improved, and the application range is wide.

Description

Technical Field

[0001] The present application relates to the field of energy storage, and in particular to a housing assembly, an electrical module and an energy storage device. Background Art

[0002] As the world increases its support for the development of new energy technologies, various technologies related to energy storage have been widely used. Batteries and electrical components of energy storage devices are sensitive to temperature, so the heat dissipation problem of energy storage devices has always been a research direction in the industry. Summary of the invention

[0003] The present application provides a housing assembly, an electrical module and an energy storage device, which can improve the heat dissipation effect.

[0004] In a first aspect, the present application provides a housing assembly, which includes a housing and a fan arranged in the housing. The housing includes a front wall and a rear wall arranged relatively along a first direction, a first side wall and a second side wall arranged relatively along a second direction, and a top wall and a bottom wall arranged relatively along a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other. The top wall includes a first opening, and the first side wall includes a second opening; the housing includes a first receiving space and an air duct, wherein the first receiving space is located between the front wall and the rear wall along the first direction, the air duct is located on the side of the rear wall facing away from the first receiving space, and the air duct is connected to the external space of the housing, and the first opening and the second opening. The fan is configured to drive an airflow into the air duct through one of the first opening and the second opening and to flow out of the air duct through the other of the first opening and the second opening. Most of the airflow driven by the fan flows into the air duct and then flows out of the air duct after being reversed, which is conducive to expanding the flow range of the airflow, increasing the contact area between the airflow and the rear wall, and improving the heat dissipation effect in the first receiving space, and is suitable for heat dissipation of components arranged in different ways in the first receiving space, and has a wide range of applications. Furthermore, the heat in the first receiving space can be naturally dissipated to the outside of the shell through the rear wall and the air duct, which is beneficial to improving the heat dissipation effect when the fan fails or is not started.

[0005] In one or more optional embodiments above, the air duct includes a plurality of first sub-air ducts; the housing assembly includes a plurality of heat dissipation fins arranged on the rear wall, the plurality of heat dissipation fins are arranged at intervals along the second direction, a first sub-air duct is formed between two adjacent heat dissipation fins, and the heat dissipation fins are arranged between the top wall and the bottom wall; along the third direction, a gap is formed between the heat dissipation fins and the bottom wall, and the gap connects the first sub-air duct with the second opening. The heat dissipation fins can increase the heat dissipation area, which is beneficial to improving the heat dissipation efficiency and heat dissipation effect. The airflow in the air duct can flow through each heat dissipation fin, which is beneficial to expanding the flow range of the airflow and improving the heat dissipation uniformity and heat dissipation effect.

[0006] In one or more optional embodiments above, the first sub-duct extends along the third direction. The extension direction of the first sub-duct is consistent with the natural upward trend of the hot air flow, which is conducive to reducing the resistance of the heat dissipation fins to the air flow, increasing the air flow rate, and thus improving the heat dissipation efficiency and heat dissipation effect.

[0007] In one or more of the above optional embodiments, the gaps formed between the plurality of heat dissipating fins and the bottom wall are interconnected.

[0008] In one or more optional embodiments above, the space below the plurality of first sub-ducts and the gaps formed between the plurality of heat dissipating fins and the bottom wall together form a second sub-duct. The second sub-duct extends to the first side wall in a direction opposite to the second direction and is connected to the second opening.

[0009] In one or more of the above optional embodiments, when viewed along the third direction, the first opening and the first sub-air duct are arranged to intersect with each other, which is beneficial to reducing the entry of impurities into the first sub-air duct and alleviating the dust accumulation on the heat dissipation fins.

[0010] In one or more optional embodiments above, along the second direction, the size of the gap formed by the plurality of heat dissipating fins and the bottom wall tends to gradually decrease. The gap formed by the heat dissipating fins close to the second opening and the bottom wall is relatively large, and the gap formed by the heat dissipating fins far from the second opening and the bottom wall is relatively small, which can reduce the resistance of the heat dissipating fins close to the first side wall to the airflow, and the airflow driven by the fan can flow to each first sub-air duct along the second direction, which is conducive to improving the heat dissipation uniformity and heat dissipation effect. In addition, the area of ​​the heat dissipating fins far from the first side wall can be increased as much as possible, which is conducive to improving the heat dissipation effect.

[0011] In one or more optional embodiments above, the rear wall includes a main body and a first protrusion, and along the first direction, the first protrusion protrudes from the main body; along the first direction, the heat dissipation fins do not exceed the first protrusion, the top wall, the bottom wall and the first side wall. Under the drive of the fan, it is beneficial to reduce the airflow flowing in the first sub-air duct to flow to the external space of the shell, thereby improving the heat dissipation effect.

[0012] In one or more optional embodiments above, the housing includes a second receiving space, and along the second direction, the second receiving space and the plurality of heat dissipating fins are located on both sides of the first convex portion. The second receiving space may be defined by at least part of the second side wall, the top wall, the bottom wall and the first convex portion. The first convex portion may separate the second receiving space from the air duct. When the second opening is an air inlet and the first opening is an air outlet, the first convex portion may reverse the airflow in the air duct and restrict the airflow from flowing to the second receiving space, which is beneficial to reducing the loss of airflow used for heat exchange and improving the heat exchange effect. In addition, the first convex portion may provide an installation and support basis for the components accommodated in the second receiving space, which is beneficial to simplifying the structure.

[0013] In one or more of the above optional embodiments, the housing assembly includes a cover, which is disposed on the side of the rear wall facing away from the front wall, and when viewed in a direction opposite to the first direction, the cover covers the gap. The cover can separate the gap from the external space of the housing, reduce air leakage from the gap to the outside of the housing, and make the airflow driven by the fan flow between the gap and the first sub-air duct as much as possible, which is conducive to improving the heat dissipation effect and heat dissipation efficiency. When the airflow driven by the fan flows into the air duct through the second opening, the cover can cooperate with the bottom wall to limit the starting flow direction of the airflow into the air duct, weaken the tendency of the airflow to flow to the external space of the housing, which is conducive to improving the heat dissipation effect of the heat dissipation fins.

[0014] In one or more optional embodiments above, when viewed from a direction opposite to the first direction, the cover may cover the entire second sub-duct, and along the second direction, both ends of the cover respectively extend beyond both ends of the second sub-duct.

[0015] In one or more optional embodiments above, when viewed from a direction opposite to the first direction, the cover covers at least a portion of each heat dissipating fin. The cover restricts the airflow entering the first sub-air duct from the gap to reduce air leakage from the first sub-air duct to the outside of the housing during the airflow reversal process, so that most of the airflow after reversal can flow along the first sub-air duct, which is conducive to further improving the heat dissipation effect.

[0016] In one or more optional embodiments above, the rear wall includes a main body and a second protrusion, the second protrusion protrudes from the main body in a direction opposite to the first direction, and the second protrusion is configured to accommodate a heat-generating component; the plurality of heat dissipation fins include a first heat dissipation fin and a second heat dissipation fin, the first heat dissipation fin is provided on the main body, and the second heat dissipation fin is provided on the second protrusion. The second protrusion can increase the area of ​​the rear wall, which is conducive to improving the heat transfer efficiency between the first receiving space and the rear wall, and improving the heat dissipation effect. The second heat dissipation fin can increase the heat dissipation area, further improving the heat dissipation effect and heat dissipation efficiency.

[0017] In one or more optional embodiments above, the rear wall includes a first protrusion, and along the first direction, the first protrusion protrudes from the main body; along the second direction, a plurality of heat dissipation fins and a second protrusion are located on the side of the first protrusion facing the first side wall; along the first direction, the second protrusion does not exceed the first protrusion, the first side wall, the top wall and the bottom wall. The main body, the first protrusion, the top wall, the bottom wall and the first side wall can enclose a heat dissipation space, and the second protrusion is located as a whole in the heat dissipation space, which is conducive to forming a flow channel on the side of the second protrusion facing away from the front wall, and is conducive to improving the heat dissipation effect.

[0018] In one or more optional embodiments above, the fan and the second opening are arranged opposite to each other along the second direction, and air is supplied toward the gap. The airflow driven by the fan can flow directly between the second opening and the gap without changing direction, which is conducive to extending the flow path of the airflow in the second direction, expanding the flow range of the airflow, and improving the heat dissipation effect.

[0019] In a second aspect, the present application provides an electrical module, which includes a housing assembly and electrical components provided according to any embodiment of the first aspect, and the electrical components are arranged in a first accommodating space.

[0020] In one or more of the above optional embodiments, the shell includes a second receiving space, which is separated from the first receiving space and the air duct; the electrical module includes a connecting component arranged in the second receiving space, and the connecting component is configured to be connected to an external device.

[0021] In one or more of the above optional embodiments, a recess is formed on the side of the second protrusion facing the front wall, and at least a portion of the electrical component is disposed in the recess.

[0022] In one or more of the above optional embodiments, a heat conducting component is disposed in the recess, and the heat conducting component is connected to the electrical component and the second protrusion.

[0023] In one or more of the above optional embodiments, the thermal conductivity of the heat-conducting component at 25 degrees Celsius may be 0.3-2.5 W / (m K).

[0024] In a third aspect, the present application provides an energy storage device, comprising an electrical module and at least one battery module provided according to any embodiment of the second aspect, wherein the electrical module and at least one battery module are stacked along a third direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0026] Figure 1 A schematic diagram of the structure of a housing assembly provided in some embodiments of the present application;

[0027] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the housing assembly shown;

[0028] Figure 3 for Figure 1 A schematic diagram of the top view of the housing assembly shown;

[0029] Figure 4 for Figure 1 A schematic cross-sectional view of the housing assembly shown;

[0030] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of the middle area A;

[0031] Figure 6 for Figure 1 Another structural schematic diagram of the housing assembly shown;

[0032] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the middle area B;

[0033] Figure 8 A schematic diagram of the structure of an electrical module provided in some embodiments of the present application;

[0034] Fig. 9 for Figure 8 A schematic cross-sectional view of the electrical module shown;

[0035] Fig.10 A schematic diagram of the structure of an energy storage device provided in some embodiments of the present application.

[0036] The reference numerals of the specific embodiments are as follows:

[0037] Shell assembly 1, shell 10, front wall 11, rear wall 12, main body 121, first convex portion 122, second convex portion 123, bottom surface 123a, recess 124, first side wall 13, second opening 131, second side wall 14, top wall 15, first opening 151, bottom wall 16, first receiving space 17, air duct 18, first sub-air duct 181, gap 182, second sub-air duct 183, second receiving space 19, fan 20, heat dissipation fin 30, first end surface 30a, second end surface 30b, side surface 30c, first heat dissipation fin 31, second heat dissipation fin 32, cover 40;

[0038] Electrical module 2, electrical components 3, heat conducting components 4, connecting components 5;

[0039] Energy storage device 6, battery module 7;

[0040] A first direction X, a direction X' opposite to the first direction, a second direction Y, and a third direction Z. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0042] The terms "first", "second", "third", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship. In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments.

[0043] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0044] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the embodiments of the present application, "parallel" includes not only the absolutely parallel situation, but also the roughly parallel situation conventionally recognized in engineering; at the same time, "vertical" includes not only the absolutely vertical situation, but also the roughly vertical situation conventionally recognized in engineering. For example, if the angle between two directions is 85°-95°, the two directions can be considered to be perpendicular; if the angle between two directions is 0°-10°, the two directions can be considered to be parallel.

[0046] The housing assembly, electrical module and energy storage device of the present application are described below in conjunction with the accompanying drawings.

[0047] Reference Figures 1 to 10 An embodiment of the present application provides a housing assembly 1, which can be used to accommodate other components, such as batteries, electrical components, etc., which will generate a certain amount of heat during operation.

[0048] In some embodiments, the shell assembly 1 includes a shell 10, which includes a front wall 11 and a rear wall 12 arranged opposite to each other along a first direction X, a first side wall 13 and a second side wall 14 arranged opposite to each other along a second direction Y, and a top wall 15 and a bottom wall 16 arranged opposite to each other along a third direction Z, and the first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0049] The first direction X is the direction from the front wall 11 to the rear wall 12 , the second direction Y is the direction from the first side wall 13 to the second side wall 14 , and the third direction Z is the direction from the top wall 15 to the bottom wall 16 .

[0050] Optionally, the first direction X and the second direction Y are parallel to the horizontal direction, and the first side wall 13 may be located on the left side of the second side wall 14 or on the right side of the second side wall 14. The third direction Z is parallel to the vertical direction, and the top wall 15 is located above the bottom wall 16. Exemplarily, the third direction Z may be the direction of gravity.

[0051] In some embodiments, the top wall 15 includes a first opening 151 , and the first side wall 13 includes a second opening 131 .

[0052] The first opening 151 may penetrate the top wall 15 along the thickness direction of the top wall 15 to connect two side spaces in the thickness direction of the top wall 15. One side space in the thickness direction of the top wall 15 is the external environment space where the housing 10 is located.

[0053] In some examples, there may be a plurality of first openings 151 , and the plurality of first openings 151 may be spaced apart along the second direction Y.

[0054] In some other examples, there may be only one first opening 151 , and the first opening 151 is substantially a strip-shaped opening extending along the second direction Y.

[0055] The second opening 131 may penetrate the first side wall 13 along the thickness direction of the first side wall 13 to connect the two side spaces in the thickness direction of the first side wall 13. One side space in the thickness direction of the first side wall 13 is the external environment space where the housing 10 is located. The second opening 131 may be one or more.

[0056] In some embodiments, the shell 10 includes a first receiving space 17 and an air duct 18. Along the first direction X, the first receiving space 17 is located between the front wall 11 and the rear wall 12, and the air duct 18 is located on the side of the rear wall 12 facing away from the first receiving space 17. The air duct 18 is connected to the external space of the shell 10, as well as the first opening 151 and the second opening 131.

[0057] The first receiving space 17 can be used to accommodate components such as batteries and electrical components.

[0058] The first receiving space 17 can be a closed space or an open space.

[0059] The first receiving space 17 is defined by the front wall 11, the rear wall 12, the top wall 15 and the bottom wall 16. Alternatively, the first receiving space 17 can also be defined by the front wall 11, the rear wall 12, the first side wall 13, the second side wall 14, the top wall 15 and the bottom wall 16.

[0060] Along the first direction X, the first receiving space 17 and the air duct 18 are respectively located on both sides of the rear wall 12 . The rear wall 12 separates the first receiving space 17 and the air duct 18 .

[0061] The heat in the first receiving space 17 can be transferred to the air duct 18 through the rear wall 12. The rear wall 12 can be made of a material with good heat transfer performance to improve the heat transfer efficiency, thereby improving the heat dissipation efficiency of the first receiving space 17.

[0062] In the embodiment of the present application, the external space of the housing 10 refers to the external environment space where the housing 10 is located. The air duct 18 is connected to the external space of the housing 10, and the air duct 18 is connected to the external environment space where the housing 10 is located. Optionally, the air duct 18 may be open to the outside of the housing 10 along the first direction X.

[0063] The air duct 18 may be directly connected to the first opening 151 , or may be indirectly connected to the first opening 151 through other structures.

[0064] The air duct 18 may be directly connected to the second opening 131 , or may be indirectly connected to the second opening 131 through other structures.

[0065] In some embodiments, the housing assembly 1 includes a fan 20 disposed in the housing 10. The fan 20 is configured to drive airflow into the air duct 18 through one of the first opening 151 and the second opening 131 and out of the air duct 18 through the other of the first opening 151 and the second opening 131.

[0066] One of the first opening 151 and the second opening 131 is an air inlet of the air duct 18 , and the other is an air outlet of the air duct 18 .

[0067] Optionally, the first opening 151 is provided on the top wall 15, and the height of the first opening 151 is higher than the height of the second opening 131. The first opening 151 can be the air outlet of the air duct 18, and the second opening 131 can be the air inlet of the air duct 18. The hot air flow in the air duct 18 has a natural upward tendency, which is conducive to improving the heat dissipation effect.

[0068] Optionally, the second opening 131 can be arranged at a position of the first side wall 13 close to the bottom wall 16 to extend the airflow path between the first opening 151 and the second opening 131 in the third direction Z as much as possible, expand the airflow range, and help improve the heat dissipation uniformity and heat dissipation effect.

[0069] There may be one or more fans 20. The fan 20 may be disposed outside the housing 10 or inside the housing 10. The fan 20 may be disposed adjacent to the first opening 151 or the second opening 131.

[0070] Optionally, the fan 20 may be disposed on the first side wall 13 or on the bottom wall 16 adjacent to the first side wall 13. The fan 20 may blow air into the air duct 18 through the second opening 131 or absorb air from the air duct 18 and blow it toward the second opening 131.

[0071] In the embodiment of the present application, the first opening 151 and the second opening 131 are respectively opened on the top wall 15 and the first side wall 13, and the air duct 18 is connected to the first opening 151 and the second opening 131. Most of the airflow driven by the fan 20 flows into the air duct 18 and then flows out of the air duct 18 after being reversed, which is beneficial to expand the flow range of the airflow, increase the contact area between the airflow and the rear wall 12, and improve the heat dissipation effect in the first receiving space 17. It is suitable for dissipating heat to components with different arrangements in the first receiving space 17 and has a wide range of applications.

[0072] In some embodiments, the air duct 18 is connected to the external space of the shell 10, and the heat in the first receiving space 17 can be naturally dissipated to the outside of the shell 10 through the rear wall 12 and the air duct 18, which is beneficial to improve the heat dissipation effect when the fan 20 fails or is not started.

[0073] In some embodiments, the air duct 18 includes a plurality of first sub-air ducts 181. The housing assembly 1 includes a plurality of heat dissipation fins 30 disposed on the rear wall 12, the plurality of heat dissipation fins 30 are arranged at intervals along the second direction Y, a first sub-air duct 181 is formed between two adjacent heat dissipation fins 30, and the heat dissipation fins 30 are disposed between the top wall 15 and the bottom wall 16. The heat dissipation fins 30 can increase the heat dissipation area, which is beneficial to improving the heat dissipation efficiency and heat dissipation effect.

[0074] The sizes of the first sub-air ducts 181 along the second direction Y may be the same or different.

[0075] A plurality of first sub-ducts 181 are arranged at intervals along the second direction Y, and each first sub-duct 181 is connected to the external space of the housing 10, the first opening 151, and the second opening 131. The first sub-duct 181 extends between the top wall 15 and the bottom wall 16, which is conducive to the vertical flow of air along the first sub-duct 181.

[0076] Top ends of the plurality of first sub-air ducts 181 adjacent to the first opening 151 are connected to each other, and bottom ends of the plurality of first sub-air ducts 181 adjacent to the second opening 131 are connected to each other.

[0077] Optionally, the heat dissipation fins 30 may be spaced apart from the top wall 15 , and top ends of the plurality of first sub-air ducts 181 adjacent to the first openings 151 may be in communication through the gaps between the heat dissipation fins 30 and the top wall 15 .

[0078] Optionally, the heat dissipation fins 30 may be spaced apart from the bottom wall 16 , and bottom ends of the plurality of first sub-air ducts 181 adjacent to the second openings 131 may be in communication through the gap between the heat dissipation fins 30 and the bottom wall 16 .

[0079] The heat dissipation fins 30 are disposed on a side of the rear wall 12 facing away from the front wall 11. The heat dissipation fins 30 may be connected to the rear wall 12, or may be integrally formed with the rear wall 12.

[0080] In some embodiments, along the third direction Z, a gap 182 is formed between the heat dissipation fin 30 and the bottom wall 16, and the gap 182 connects the first sub-duct 181 with the second opening 131. The heat dissipation fin 30 has a first end surface 30a close to the bottom wall 16, and the gap 182 is formed between the first end surface 30a and the bottom wall 16.

[0081] The gaps 182 formed between the plurality of heat dissipation fins 30 and the bottom wall 16 are connected to each other. The space below the plurality of first sub-ducts 181 and the gaps 182 formed between the plurality of heat dissipation fins 30 and the bottom wall 16 together form a second sub-duct 183. The second sub-duct 183 extends to the first side wall 13 in a direction opposite to the second direction Y and is connected to the second opening 131.

[0082] The air duct 18 includes a second sub-air duct 183, and each first sub-air duct 181 is connected to the second opening 131 through the second sub-air duct 183. The second sub-air duct 183 is formed between the plurality of heat dissipation fins 30 and the bottom wall 16, and the second opening 131 can be disposed adjacent to the bottom wall 16 so as to be connected to the second sub-air duct 183.

[0083] Along the third direction Z, the heat dissipation fin 30 has a second end surface 30b close to the top wall 15, the first end surface 30a and the second end surface 30b are arranged opposite to each other, and the second end surface 30b can be in contact with the top wall 15 or can be spaced apart from the top wall 15. When the second end surface 30b is spaced apart from the top wall 15, a gas converging channel can be formed between the top wall 15 and the heat dissipation fin 30, which is conducive to the gas flowing through the first opening 151.

[0084] Along the third direction Z, the second end surfaces 30 b of the plurality of heat dissipating fins 30 may be flush with each other.

[0085] In the embodiment of the present application, the heat dissipation fins 30 are spaced apart from the bottom wall 16. The airflow flowing into the air duct 18 from the second opening 131 can flow toward each first sub-air duct 181 along the second direction Y, or the airflow flowing out from the end of each first sub-air duct 181 adjacent to the bottom wall 16 can flow toward the second opening 131. The airflow in the air duct 18 can flow through each heat dissipation fin 30, which is beneficial to expand the flow range of the airflow and improve the heat dissipation uniformity and heat dissipation effect.

[0086] In some embodiments, the first sub-air duct 181 extends along the third direction Z.

[0087] Each heat dissipation fin 30 extends along the third direction Z, so that the first sub-air duct 181 formed between two adjacent heat dissipation fins 30 extends along the third direction Z.

[0088] The extension direction of the first sub-air duct 181 is consistent with the natural upward trend of the hot air flow, which is beneficial to reducing the resistance of the heat dissipation fins 30 to the air flow, increasing the air flow velocity, and further improving the heat dissipation efficiency and heat dissipation effect.

[0089] In some embodiments, the top wall 15 includes a plurality of first openings 151, and the plurality of first openings 151 are arranged at intervals along the second direction Y. Figure 3 , viewed along the third direction Z, the first opening 151 partially overlaps with the first sub-air duct 181 .

[0090] The first opening 151 is located above the first sub-duct 181, and the first sub-duct 181 extends along the third direction Z. Part of the airflow flowing from the first sub-duct 181 to the first opening 151 directly flows through the first opening 151, or part of the airflow flowing from the first opening 151 to the first sub-duct 181 can directly flow into the first sub-duct 181, which is beneficial to increase the airflow velocity and thus improve the heat exchange effect.

[0091] In some embodiments, the first opening 151 is arranged obliquely relative to the first direction X. When viewed along the third direction Z, the first opening 151 and the first sub-air duct 181 are arranged to intersect, which is beneficial to reduce impurities entering the first sub-air duct 181 and reduce dust accumulation on the heat dissipation fins 30 .

[0092] The first opening 151 may be in a strip, circle, square or other suitable shapes.

[0093] In some embodiments, along the second direction Y, the size of the gap 182 formed by the plurality of heat dissipating fins 30 and the bottom wall 16 tends to gradually decrease.

[0094] In some examples, the sizes of the gaps 182 formed between the plurality of heat dissipating fins 30 and the bottom wall 16 are different from each other, and the sizes of the gaps 182 formed between the plurality of heat dissipating fins 30 and the bottom wall 16 decrease one by one along the second direction Y. The difference between the sizes of the gaps 182 formed between each two adjacent heat dissipating fins 30 and the bottom wall 16 may be the same or different.

[0095] In other examples, the sizes of the gaps 182 formed by the plurality of heat dissipating fins 30 and the bottom wall 16 may be partially the same. For example, along the second direction Y, the sizes of the gaps 182 formed by the plurality of heat dissipating fins 30 and the bottom wall 16 may decrease in a stepwise manner, and the sizes of the gaps 182 formed by the heat dissipating fins 30 and the bottom wall 16 at the same gradient may be the same.

[0096] In some other examples, along the second direction Y, the sizes of the gaps 182 formed between a portion of the plurality of heat dissipating fins 30 and the bottom wall 16 decrease one by one, and the sizes of the gaps 182 formed between another portion of the plurality of heat dissipating fins 30 and the bottom wall 16 are the same or decrease in a step-wise manner. Along the second direction Y, the sizes of the gaps 182 formed between the plurality of heat dissipating fins 30 and the bottom wall 16 generally show a trend of gradually decreasing.

[0097] The gap 182 formed between the heat dissipation fin 30 near the second opening 131 and the bottom wall 16 is relatively large, and the gap 182 formed between the heat dissipation fin 30 far from the second opening 131 and the bottom wall 16 is relatively small, which can reduce the resistance of the heat dissipation fin 30 near the first side wall 13 to the airflow, and the airflow driven by the fan 20 can flow to each first sub-air duct 181 along the second direction Y, which is conducive to improving the heat dissipation uniformity and heat dissipation effect. In addition, the area of ​​the heat dissipation fin 30 far from the first side wall 13 can be increased as much as possible, which is conducive to improving the heat dissipation effect.

[0098] In some embodiments, the rear wall 12 includes a main body 121 and a first protrusion 122 . Along the first direction X, the first protrusion 122 protrudes from the main body 121 .

[0099] In some embodiments, the heat dissipation fin 30 does not extend beyond the first protrusion 122 along the first direction X. The heat dissipation fin 30 has a side surface 30 c facing away from the front wall 11 , and the side surface 30 c may be flush with the first protrusion 122 or closer to the front wall 11 than the first protrusion 122 .

[0100] In some embodiments, the heat dissipation fins 30 do not extend beyond the top wall 15 along the first direction X. The side surface 30 c may be flush with the top wall 15 , or may be closer to the front wall 11 than the top wall 15 .

[0101] In some embodiments, the heat dissipation fins 30 do not extend beyond the bottom wall 16 along the first direction X. The side surface 30 c may be flush with the bottom wall 16 , or may be closer to the front wall 11 than the bottom wall 16 .

[0102] In some embodiments, the heat dissipation fins 30 do not extend beyond the first side wall 13 along the first direction X. The side surface 30 c may be flush with the first side wall 13 , or may be closer to the front wall 11 than the first side wall 13 .

[0103] The main body 121, the first convex portion 122, the top wall 15, the bottom wall 16 and the first side wall 13 can enclose a heat dissipation space, and the heat dissipation fins 30 are located in the heat dissipation space. Under the drive of the fan 20, it is beneficial to reduce the airflow flowing in the first sub-air duct 181 to flow to the external space of the housing 10, which is beneficial to improve the heat dissipation effect.

[0104] In some embodiments, the housing 10 includes a second receiving space 19, and along the second direction Y, the second receiving space 19 and the plurality of heat dissipation fins 30 are located on both sides of the first protrusion 122. The second receiving space 19 can be used to store plugs, connectors or other connection components. The second receiving space 19 can be a closed space or an open space. Optionally, the second receiving space 19 is an open space, and the second receiving space 19 can be open to the outside of the housing 10 along the second direction Y, so that the connection components in the second receiving space 19 can be connected with other electrical components.

[0105] Along the second direction Y, at least a portion of the first protrusion 122 may be located between the first side wall 13 and the second side wall 14 , and the second receiving space 19 may be defined by at least a portion of the second side wall 14 , the top wall 15 , the bottom wall 16 , and the first protrusion 122 .

[0106] The second receiving space 19 and the plurality of heat dissipating fins 30 are respectively located on both sides of the first convex portion 122 in the second direction Y, and the first convex portion 122 can separate the second receiving space 19 from the air duct 18. When the second opening 131 is an air inlet and the first opening 151 is an air outlet, the first convex portion 122 can reverse the airflow in the air duct 18 and restrict the airflow from flowing to the second receiving space 19, which is beneficial to reducing the loss of airflow used for heat exchange and improving the heat exchange effect. In addition, the first convex portion 122 can provide an installation and support foundation for the components contained in the second receiving space 19, which is beneficial to simplifying the structure.

[0107] In some embodiments, the housing assembly 1 includes a cover 40, which is disposed on a side of the rear wall 12 facing away from the front wall 11. Figure 8 , viewed along a direction X′ opposite to the first direction X, the cover 40 covers the gap 182 .

[0108] The cover 40 can separate the gap 182 from the external space of the housing 10, reduce the air leakage from the gap 182 to the outside of the housing 10, and make the airflow driven by the fan 20 flow between the gap 182 and the first sub-air duct 181 as much as possible, which is conducive to improving the heat dissipation effect and heat dissipation efficiency. When the airflow driven by the fan 20 flows into the air duct 18 through the second opening 131, the cover 40 can cooperate with the bottom wall 16 to limit the starting flow direction of the airflow into the air duct 18, weaken the tendency of the airflow to flow to the external space of the housing 10, which is conducive to improving the heat dissipation effect of the heat dissipation fins 30.

[0109] The cover 40 may be connected to the first protrusion 122, the bottom wall 16 and / or the first side wall 13 by screw connection, bonding, clamping or other suitable means. The cover 40 may be connected to at least part of the heat dissipation fins 30 by screw connection. Optionally, the cover 40 may abut against the heat dissipation fins 30.

[0110] See also Figure 8 , viewed along a direction X′ opposite to the first direction X, the cover 40 covers the entire second sub-duct 183 , and along the second direction Y, both ends of the cover 40 extend beyond both ends of the second sub-duct 183 .

[0111] In some embodiments, see Figure 8 , viewed along a direction X′ opposite to the first direction X, the cover 40 covers at least a portion of each heat dissipating fin 30 . Optionally, the cover 40 covers the first end surface 30 a of each heat dissipating fin 30 .

[0112] The heights of the first end surfaces 30 a of the plurality of heat dissipating fins 30 along the third direction Z may be the same or different. The cover 40 covers the first end surfaces 30 a of all the heat dissipating fins 30 .

[0113] The cover 40 may just cover the first end surface 30 a of the heat dissipation fin 30 , or may simultaneously cover the lower section of the heat dissipation fin 30 adjacent to the first end surface 30 a .

[0114] The cover 40 restricts the airflow entering the first sub-duct 181 from the gap 182 to reduce air leakage from the first sub-duct 181 to the outside of the shell 10 during the airflow reversing process, so that most of the airflow after reversing can flow along the first sub-duct 181, which is beneficial to further improve the heat dissipation effect.

[0115] In some embodiments, the rear wall 12 includes a main body 121 and a second protrusion 123, and the second protrusion 123 protrudes from the main body 121 along a direction X' opposite to the first direction X. The second protrusion 123 is configured to accommodate a heat-generating component. In the embodiment of the present application, the heat-generating component refers to a component that generates heat during operation.

[0116] The second convex portion 123 may be disposed on a side of the first convex portion 122 facing the first side wall 13 , and along the second direction Y, the second convex portion 123 and the first convex portion 122 may be spaced apart.

[0117] There may be one or more second protrusions 123. When there are more than one second protrusions 123, the plurality of second protrusions 123 may be arranged at intervals along the second direction Y, and the dimensions of the second protrusions 123 protruding from the main body 121 may be the same or different.

[0118] The second protrusion 123 can increase the area of ​​the rear wall 12 , which is beneficial to improving the heat transfer efficiency between the first receiving space 17 and the rear wall 12 and improving the heat dissipation effect.

[0119] In some embodiments, the plurality of heat dissipation fins 30 include a first heat dissipation fin 31 and a second heat dissipation fin 32, wherein the first heat dissipation fin 31 is disposed on the main body 121, and the second heat dissipation fin 32 is disposed on the second convex portion 123. In the embodiment of the present application, by disposing the second heat dissipation fin 32 on the second convex portion 123, the heat dissipation area can be increased, and the heat dissipation effect and heat dissipation efficiency can be further improved.

[0120] Along the second direction Y, the first heat dissipation fin 31 may be spaced apart from the second protrusion 123. Along the first direction X, the first heat dissipation fin 31 exceeds the second protrusion 123. The second protrusion 123 is entirely located in the heat dissipation space where the plurality of heat dissipation fins 30 are located, and a flow channel may be defined between the first heat dissipation fin 31 adjacent to the second protrusion 123 and the bottom surface 123a of the second protrusion 123 facing away from the front wall 11, and the flow channel may form a part of the air duct 18, which is beneficial to improving the heat dissipation effect.

[0121] In some embodiments, the second heat dissipating fins 32 may be connected to a bottom surface 123 a of the second protrusion 123 facing away from the front wall 11 , or may be integrally formed with the second protrusion 123 .

[0122] The side surface 30 c of the second heat dissipating fin 32 facing away from the front wall 11 may be flush with the side surface 30 c of the first heat dissipating fin 31 facing away from the front wall 11 .

[0123] In some embodiments, along the second direction Y, the plurality of heat dissipating fins 30 and the second protrusion 123 are located on a side of the first protrusion 122 facing the first side wall 13. Along the first direction X, the second protrusion 123 does not exceed the first protrusion 122. Optionally, the second protrusion 123 has a bottom surface 123a facing away from the front wall 11, and the bottom surface 123a may be closer to the front wall 11 than the first protrusion 122.

[0124] In some embodiments, the second protrusion 123 does not extend beyond the first side wall 13 along the first direction X. Optionally, the bottom surface 123 a is closer to the front wall 11 than the first side wall 13 .

[0125] In some embodiments, the second protrusion 123 does not extend beyond the top wall 15 along the first direction X. Optionally, the bottom surface 123 a is closer to the front wall 11 than the top wall 15 .

[0126] In some embodiments, the second protrusion 123 does not extend beyond the bottom wall 16 along the first direction X. Optionally, the bottom surface 123 a is closer to the front wall 11 than the bottom wall 16 .

[0127] The main body 121, the first protrusion 122, the top wall 15, the bottom wall 16 and the first side wall 13 can enclose a heat dissipation space, and the second protrusion 123 is located as a whole in the heat dissipation space, which is conducive to forming a flow channel on the side of the second protrusion 123 facing away from the front wall 11, thereby improving the heat dissipation effect.

[0128] In some embodiments, the fan 20 and the second opening 131 are disposed opposite to each other along the second direction Y, and blow air toward the gap 182. Optionally, a portion of the fan 20 is located in the second opening 131.

[0129] In some examples, there may be only one fan 20 , and the fan 20 may be disposed on a side of the first side wall 13 facing the second side wall 14 , or may be disposed on a side of the first side wall 13 facing away from the second side wall 14 .

[0130] In some other examples, there may be two fans 20 , and the two fans 20 are respectively disposed on two sides of the first side wall 13 along the second direction Y.

[0131] The fan 20 may be supported and connected to the bottom wall 16 , may also be connected to the first side wall 13 , and may be connected to both the bottom wall 16 and the first side wall 13 .

[0132] The fan 20 may have an air suction port and an air blowing port, one of which may be directly connected to the second opening 131, and the other may be directed toward the gap 182. The airflow driven by the fan 20 may flow directly between the second opening 131 and the gap 182 without changing direction, which is beneficial to extending the flow path of the airflow in the second direction Y, expanding the flow range of the airflow, and improving the heat dissipation effect.

[0133] The rotation axis of the fan 20 is parallel to the second direction Y, and the air outlet of the fan 20 is oriented horizontally, which helps to reduce the risk of the fan 20 being attacked by dust and / or rainwater and increase the service life of the fan 20.

[0134] An embodiment of the present application provides an electrical module 2 , which includes a housing assembly 1 and electrical components 3 provided according to any embodiment of the present application. The electrical components 3 are disposed in a first receiving space 17 .

[0135] The number of the electrical component 3 may be one or more.

[0136] The electrical components 3 may be arranged in the first receiving space 17 in any suitable manner.

[0137] The heat generated by the operation of the electrical components 3 can be transferred to the air duct 18 through the rear wall 12 of the housing assembly 1. Most of the airflow driven by the fan 20 flows into the air duct 18 and then flows out of the air duct 18 after being reversed, which is beneficial to expand the flow range of the airflow, increase the contact area between the airflow and the rear wall 12, and improve the heat dissipation effect.

[0138] In some embodiments, a concave portion 124 is formed on a side of the second protrusion 123 facing the front wall 11 , and at least a portion of the electrical component 3 is disposed in the concave portion 124 .

[0139] In some examples, there may be only one electrical component 3 , and at least a portion of the electrical component 3 is disposed in the recess 124 .

[0140] In some other examples, there may be multiple electrical components 3 , and at least a portion of at least one electrical component 3 may be disposed in the recess 124 .

[0141] At least part of the recess 124 can be formed by enclosing the second convex part 123. The recess 124 can provide a space for accommodating the electrical components 3, which is conducive to saving space. In addition, both sides of the recess 124 along the second direction Y and the side facing away from the front wall 11 along the first direction X are adjacent to the rear wall 12. The heat generated by the electrical components 3 can be transferred to the rear wall 12 in multiple directions, and then carried away by the flowing airflow in the air duct 18 on the other side of the rear wall 12, which is conducive to improving the heat dissipation efficiency and heat dissipation effect.

[0142] Optionally, the electrical component 3 may include an inductor. The inductor generates a lot of heat. Disposing at least part of the inductor in the recess 124 is beneficial to improving the heat dissipation efficiency and heat dissipation effect of the inductor.

[0143] In some embodiments, a heat conducting component 4 is disposed in the recess 124 , and the heat conducting component 4 is connected to the electrical component 3 and the second protrusion 123 .

[0144] Optionally, the heat-conducting component 4 may be a heat-conducting adhesive, and the heat-conducting component 4 is bonded to the electrical component 3 and the second protrusion 123 .

[0145] Optionally, the thermal conductivity of the heat conducting component 4 may be greater than the thermal conductivity of the rear wall 12 .

[0146] In some embodiments, the thermal conductivity of the thermally conductive component 4 at 25° C. may be 0.3-2.5 W / (m K).

[0147] The heat-conducting component 4 has a relatively high thermal conductivity, which can increase the speed at which the heat generated by the electrical components 3 is transferred to the rear wall 12, thereby enhancing the heat dissipation effect.

[0148] In some embodiments, the housing 10 includes a second receiving space 19 , and the second receiving space 19 is separated from both the first receiving space 17 and the air duct 18 .

[0149] Optionally, the second receiving space 19 may be separated from the air duct 18 by the first protrusion 122 , the second receiving space 19 may be separated from the first receiving space 17 by a portion of the rear wall 12 , or may be separated from the first receiving space 17 by other side walls.

[0150] In some embodiments, the electrical module 2 includes a connection component 5 disposed in the second receiving space, and the connection component 5 is configured to be connected to an external device.

[0151] The connection assembly 5 may include a plurality of connection terminals, which may be, for example, aviation plugs or other electrical connection plugs.

[0152] The connecting assembly 5 is disposed in the second receiving space 19 , and the connecting assembly 5 is separated from the electrical components 3 in the first receiving space 17 and the air duct 18 , thereby reducing interference between the connecting assembly 5 and the air duct 15 .

[0153] The embodiment of the present application provides an energy storage device 6, which includes an electrical module 2 provided according to any embodiment of the present application and at least one battery module 7. The electrical module 2 and the at least one battery module 7 are stacked along a third direction Z.

[0154] At least one battery module 7 is disposed below the electrical module 2 , and the battery module 7 adjacent to the electrical module 2 may be connected to the bottom wall 16 .

[0155] The airflow driven by the fan 20 can promptly take away the heat generated by the electrical module 2, reduce the heat transfer from the electrical module 2 to the battery module 7, and reduce the impact on the battery module 7. In addition, the airflow driven by the fan 20 helps to dissipate the heat of the battery module 7 adjacent to the electrical module 2, thereby improving the reliability of the battery module 7.

[0156] The energy storage device 6 in the embodiment of the present application may be an energy storage container or an energy storage cabinet, etc.

[0157] The energy storage device of the embodiment of the present application can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems or temporary power supply systems, etc. The energy storage device can store electrical energy as needed and output electrical energy at an appropriate time.

[0158] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A housing assembly, characterized in that: It comprises a housing and a fan arranged on the housing; The housing comprises a front wall and a rear wall arranged opposite to each other in a first direction, a first side wall and a second side wall arranged opposite to each other in a second direction, and a top wall and a bottom wall arranged opposite to each other in a third direction, wherein the first direction, the second direction and the third direction are perpendicular to each other; The top wall includes a first opening, and the first side wall includes a second opening; The shell comprises a first receiving space and an air duct, wherein along the first direction, the first receiving space is located between the front wall and the rear wall, the air duct is located on a side of the rear wall facing away from the first receiving space, and the air duct is connected to an external space of the shell, and the first opening and the second opening; The fan is configured to drive air flow into the air duct through one of the first opening and the second opening and out of the air duct through the other of the first opening and the second opening.

2. The housing assembly according to claim 1, characterized in that: The air duct includes a plurality of first sub-air ducts; The housing assembly includes a plurality of heat dissipation fins arranged on the rear wall, the plurality of heat dissipation fins are arranged at intervals along the second direction, the first sub-air duct is formed between two adjacent heat dissipation fins, and the heat dissipation fins are arranged between the top wall and the bottom wall; Along the third direction, a gap is formed between the heat dissipation fins and the bottom wall, and the gap connects the first sub-air duct with the second opening.

3. The housing assembly according to claim 2, characterized in that: Along the second direction, the size of the gap formed by the plurality of heat dissipating fins and the bottom wall tends to gradually decrease.

4. The housing assembly according to claim 2 or 3, characterized in that: The rear wall comprises a main body and a first convex portion, and along the first direction, the first convex portion protrudes from the main body; Along the first direction, the heat dissipation fins do not extend beyond the first protrusion, the top wall, the bottom wall, and the first side wall.

5. The housing assembly according to claim 4, characterized in that: The housing includes a second receiving space. Along the second direction, the second receiving space and the plurality of heat dissipating fins are located on two sides of the first protrusion.

6. The housing assembly according to any one of claims 2 to 5, characterized in that: The housing assembly includes a covering member, which is disposed on a side of the rear wall facing away from the front wall. When viewed along a direction opposite to the first direction, the covering member covers the gap.

7. The housing assembly according to claim 6, characterized in that: When viewed from a direction opposite to the first direction, the cover covers at least a portion of each of the heat dissipating fins.

8. The housing assembly according to any one of claims 2 to 7, characterized in that: The rear wall includes a main body and a second protrusion, the second protrusion protrudes from the main body in a direction opposite to the first direction, and the second protrusion is configured to accommodate a heat-generating component; The plurality of heat dissipation fins include first heat dissipation fins and second heat dissipation fins, the first heat dissipation fins are disposed on the main body, and the second heat dissipation fins are disposed on the second protrusion.

9. The housing assembly according to claim 8, characterized in that: The rear wall comprises a first protrusion, and along the first direction, the first protrusion protrudes from the main body; Along the second direction, the plurality of heat dissipation fins and the second protrusion are located on a side of the first protrusion facing the first side wall; Along the first direction, the second protrusion does not exceed the first protrusion, the first side wall, the top wall and the bottom wall.

10. The housing assembly according to any one of claims 2 to 9, characterized in that: Along the second direction, the fan and the second opening are arranged opposite to each other and supply air toward the gap.

11. An electrical module, characterized in that: include: The housing assembly according to any one of claims 1 to 10; as well as The electrical components are arranged in the first receiving space.

12. The electrical module according to claim 11, characterized in that The housing comprises a second receiving space, and the second receiving space is separated from the first receiving space and the air duct; The electrical module includes a connection component disposed in the second receiving space, and the connection component is configured to be connected to an external device.

13. An energy storage device, characterized in that: include: The electrical module according to any one of claims 11-12; as well as At least one battery module, the electrical module and the at least one battery module are stacked along the third direction.

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