Exhaust energy storage cabinet

Abstract

The utility model provides an exhaust energy storage cabinet, and belongs to the technical field of battery energy storage. An exhaust air duct assembly in the exhaust energy storage cabinet comprises an air duct shell extending in the height direction of a cabinet body, a first flow guide part, a first draught fan and a second draught fan, the first flow guide part is located in the air duct shell and located between the air duct side wall of the air duct shell and the inner wall of the cabinet body, and the first flow guide part covers at least one part of a second air inlet; the joint of the first edge of the first flow guide part and the air duct side wall is located between the first air inlet and the second air inlet, and the second edge of the first flow guide part and the air duct side wall are spaced to form an air outlet. The exhaust air duct assembly in the exhaust energy storage cabinet can reduce air inlet interference between the draught fans, and then the exhaust efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery energy storage, and in particular to an exhaust energy storage cabinet. Background Art

[0002] Energy storage cabinets are devices that integrate multiple energy storage batteries, as well as electrical control components such as battery management systems and power control systems in a cabinet to intelligently store and release electrical energy. When lithium-ion batteries in energy storage cabinets experience thermal runaway due to thermal abuse, mechanical abuse, or electrical abuse, they will release a large amount of flammable and explosive gases. If these flammable and explosive gases cannot be discharged in time, there will be a risk of explosion. Therefore, energy storage cabinets need to have good exhaust functions.

[0003] In the related art, a fan is usually provided in the energy storage cabinet to realize active exhaust. When multiple fans are provided and the multiple fans exhaust air through the same air duct, the fans are prone to interfere with each other, resulting in reduced exhaust efficiency. Utility Model Content

[0004] The present disclosure provides an exhaust energy storage cabinet, which can reduce the air intake interference between fans and thus improve the exhaust efficiency.

[0005] The exhaust energy storage cabinet includes a cabinet body and an exhaust air duct assembly, wherein the cabinet body is used to place a plurality of battery packs, the exhaust air duct assembly is fixed to the inner wall of the cabinet body, and the exhaust air duct assembly includes an air duct housing, a first air guide, a first fan and a second fan extending along the height direction of the cabinet body, and the height direction is the direction from the cabinet top to the cabinet bottom;

[0006] The air duct housing comprises an air duct side wall and a circumferential retaining wall, wherein the air duct side wall is arranged relative to the inner wall and spaced apart from each other, and the circumferential retaining wall surrounds the edge of the air duct side wall and is arranged between the air duct side wall and the inner wall;

[0007] The side wall of the air duct is provided with a first air inlet and a second air inlet distributed along the height direction, and the second air inlet is located below the first air inlet; the first fan is used to suck the gas inside the cabinet into the air duct housing through the first air inlet, and the second fan is used to suck the gas inside the cabinet into the air duct housing through the second air inlet;

[0008] The first flow guide is located in the air duct housing and between the air duct side wall and the inner wall, covering at least a portion of the second air inlet; the connection between the first edge of the first flow guide and the air duct side wall is located between the first air inlet and the second air inlet, and the second edge of the first flow guide is spaced apart from the air duct side wall to form an air outlet, and the first edge and the second edge are two opposite edges of the first flow guide along the height direction.

[0009] In the scheme disclosed in the present invention, the exhaust air duct assembly is formed into an air duct by the air duct side wall arranged relative to the inner wall of the cabinet body in the exhaust energy storage cabinet, and the circumferential retaining wall arranged between the air duct side wall and the inner wall, so as to provide the air flow in the air inlet duct housing for the fan to suck. By arranging a first air guide member in the air duct housing to at least partially cover the air inlet (second air inlet) located downstream of the air duct, and connecting one side of the first air guide member close to the air inlet (first air inlet) located upstream of the air duct with the air duct side wall, the first air guide member is used to isolate the two air inlets, thereby reducing the vortex of the dual fans, reducing the turbulence, and preventing the airflow discharged into the air duct by the upstream fan (first fan) through the upstream air inlet (first air inlet) from escaping from the downstream air inlet, thereby reducing the air inlet interference between the fans and improving the exhaust efficiency.

[0010] In a possible implementation manner, a distance between the second edge of the first air guide and the side wall of the air duct is smaller than a distance between the side wall of the air duct and the inner wall.

[0011] In the solution disclosed in the present invention, a first edge of the first air guide member is connected to the side wall of the air duct, and a second edge opposite to the first edge is lifted relative to the side wall of the air duct. By limiting the lifting height of the second edge (i.e., the distance between the second edge and the side wall of the air duct) to be smaller than the distance between the side wall of the air duct and the inner wall of the cabinet for installing the air duct shell, the first air guide member can be accommodated as a whole in the space enclosed by the side wall of the air duct and the circumferential blocking wall without affecting the assembly between the air duct shell and the inner wall of the cabinet.

[0012] In a possible implementation manner, the first air guide is a plate-shaped component, and the first air guide is inclined in the height direction toward a direction away from the side wall of the air duct.

[0013] In one possible implementation, the first guide member includes a first guide plate and a second guide plate that are bent and connected to each other, wherein the first edge of the first guide member is a side of the first guide plate close to the first air inlet, the other side of the first guide plate is connected to the second guide plate, and the first guide plate is inclined along the height direction in a direction away from the side wall of the air duct; the second guide plate at least partially covers the second air inlet.

[0014] The solution shown in the present disclosure is that by arranging the portion of the first guide member close to the first air inlet, or arranging the first guide member as a whole to be inclined along the height direction of the cabinet (that is, the air outlet direction of the airflow in the air duct shell) toward a direction away from the side wall of the air duct, the inclined portion can provide guidance for the airflow entering the air duct through the first air inlet, so that it flows along the air outlet direction toward the air outlet end of the air duct, thereby reducing the flow wind resistance and helping to improve the exhaust efficiency.

[0015] In a possible implementation, the second guide plate is perpendicular to the opening direction of the second air inlet; and the distance between the second guide plate and the side wall of the air duct is smaller than the distance between the side wall of the air duct and the inner wall.

[0016] The solution shown in the present disclosure is that by setting the second guide plate perpendicular to the opening direction of the second air inlet, whether it is the first airflow entering the air duct through the first air inlet or the second airflow entering the air duct through the second air inlet, the second guide plate can provide a flow channel space with a smaller size change along the depth direction of the air duct, so that the guiding effect of the second guide plate on the first airflow and the second airflow can be better balanced. The edge of the second guide plate away from the side of the first guide plate is the second edge of the first guide member, so as to ensure that the distance between the second guide plate as a whole and the side wall of the air duct is less than the distance between the side wall of the air duct and the inner wall of the cabinet, that is, the distance between the second edge of the first guide member and the side wall of the air duct is less than the distance between the side wall of the air duct and the inner wall of the cabinet.

[0017] In one possible implementation, the second guide plate is inclined along the height direction toward a direction away from the side wall of the air duct, and an angle between a first plate surface of the first guide plate facing away from the second air inlet and an opening direction of the second air inlet is smaller than an angle between a second plate surface of the second guide plate facing away from the second air inlet and the opening direction of the second air inlet.

[0018] In the solution shown in the present disclosure, when the second guide plate is inclined relative to the side wall of the air duct, its inclination degree is set to be smaller than the inclination degree of the first guide plate so that the side of the second guide plate close to the second air inlet is closer to the side wall of the air duct, so that when the first air flow entering the air duct through the first air inlet flows in the air outlet direction through the first guide plate and the second guide plate in sequence, the first air flow can enter the larger air flow space from a smaller air flow space (the air flow space is surrounded by the side of the first guide plate or the second guide plate facing away from the second air inlet and an installation carrier such as a cabinet door), thereby guiding the first air flow to flow in the air outlet direction, which helps to improve the exhaust efficiency.

[0019] In a possible implementation manner, the orthographic projection of the second air inlet on a set plane is located within the orthographic projection of the first air guide on the set plane, wherein the set plane is perpendicular to the opening direction of the second air inlet.

[0020] In the solution shown in the present disclosure, on a set plane perpendicular to the opening direction of the second air inlet, the orthographic projection of the second air inlet is located within the orthographic projection of the first air guide, so that the first air guide can completely cover the second air inlet to fully isolate the first air inlet and the second air inlet.

[0021] In a possible implementation manner, at least one side edge of the first flow guide is connected to the circumferential retaining wall, and the side edge is connected between the first edge and the second edge.

[0022] The solution shown in the present disclosure is that the side of the first flow guide is connected to the circumferential baffle wall, so that except for the second air inlet and the air outlet, the rest of the flow channel space enclosed by the first flow guide, the side wall of the air duct and the circumferential baffle wall is closed, so as to improve the isolation effect of the first flow guide on the first air inlet and the second air inlet, thereby reducing the air intake interference between the fans, which helps to improve the exhaust efficiency.

[0023] In a possible implementation, the exhaust air duct assembly further includes at least one second air guide member, wherein the second air guide member is configured to guide the airflow entering the air duct housing through the first air inlet, wherein:

[0024] At least one of the second guide members includes a third guide plate, wherein the third guide plate is rotatably connected to the circumferential baffle wall; or, the third guide plate is fixedly connected to the circumferential baffle wall, and the third guide plate is inclined along the height direction in a direction away from the side wall of the air duct.

[0025] In the solution shown in the present disclosure, since the first guide member may hinder the first airflow entering the air duct through the first air inlet from flowing along the air outlet direction, a third guide plate is provided to guide the first airflow so that it can flow along the air outlet direction, thereby reducing the flow resistance of the air duct and ensuring the exhaust efficiency.

[0026] In a possible implementation, when the third guide plate is fixedly connected to the circumferential baffle wall, the angle between the third plate surface of the third guide plate facing away from the second air inlet and the opening direction of the second air inlet is not greater than the angle between the first plate surface of the first guide plate facing away from the second air inlet and the opening direction of the second air inlet.

[0027] In the solution shown in the present disclosure, when the third guide plate is fixed and inclined relative to the side wall of the air duct, its inclination is set to be greater than the inclination of the first guide plate, so that when the first airflow entering the air duct through the first air inlet flows in the air outlet direction through the third guide plate and the first guide plate in sequence, the first airflow can enter the larger airflow space from a smaller airflow space (the airflow space is surrounded by the third guide plate or the side of the first guide plate facing away from the second air inlet and an installation carrier such as a cabinet door), thereby guiding the first airflow to flow in the air outlet direction, which helps to improve the exhaust efficiency.

[0028] In a possible implementation, the second air guide member further includes a fourth air guide plate, the fourth air guide plate is connected to an end of the third air guide plate close to the side wall of the air duct, and the fourth air guide plate is parallel to the opening direction of the first air inlet.

[0029] In the solution shown in the present disclosure, the fourth guide plate increases the guide length, and the fourth guide plate is parallel to the opening direction of the first air inlet, and will not hinder the flow of the first air flow entering the air duct through the first air inlet, further reducing the flow resistance of the air duct, thereby helping to improve the exhaust efficiency.

[0030] In a possible implementation, the side wall of the air duct includes a first air inlet section and a second air inlet section, wherein the first air inlet is opened in the first air inlet section, and the second air inlet is opened in the second air inlet section;

[0031] The first air inlet section is connected to the second air inlet section by a bending motion, and one end of the first air inlet section away from the second air inlet section is inclined toward a direction close to the first air guide member.

[0032] According to the solution disclosed in the present invention, when the exhaust duct assembly is assembled together with a mounting carrier such as a cabinet door of a cabinet, the opening direction of the first air inlet can intersect with the mounting carrier at an obtuse angle, so that the mounting carrier can serve as a guide structure to guide the first air flow toward the air outlet end of the air duct, thereby avoiding the first air flow generated by the first fan from directly blowing on the mounting carrier, reducing the air inlet flow resistance, and thus helping to improve the exhaust efficiency.

[0033] In a possible implementation, the exhaust air duct assembly further includes a filter;

[0034] The air duct housing includes an air inlet chamber, a filter chamber and an air outlet chamber arranged in sequence along the height direction, wherein the first air inlet and the second air inlet are located in the air inlet chamber, the filter element is located in the filter chamber, and the air outlet chamber is connected to the exhaust port opened on the cabinet body to discharge the airflow in the air duct housing.

[0035] The solution shown in the present disclosure, by arranging the filter element on the side of the second air inlet away from the first air inlet, can filter media such as dust or water vapor that enter the first air inlet and the second air inlet from the external environment through the exhaust port on the cabinet, thereby preventing harmful media from entering the cabinet of the exhaust energy storage cabinet through the first air inlet and the second air inlet.

[0036] In a possible implementation, the cabinet body includes a cabinet door, an inner wall of the cabinet door faces the multiple battery packs, and the exhaust duct assembly is fixed to the inner wall of the cabinet door.

[0037] The solution shown in the present disclosure sets the exhaust duct assembly on the cabinet body, which is easy to install and can reduce the storage space in the cabinet body used to set the battery pack.

[0038] In a possible implementation, an exhaust port is provided on the cabinet door, and the exhaust port is communicated with the air duct housing and the space enclosed by the inner wall.

[0039] The solution shown in the present disclosure, by opening the exhaust port on the cabinet door, facilitates direct connection with the exhaust duct assembly arranged on the cabinet door; and the exhaust duct assembly can block between the exhaust port connected to the external environment and the battery pack, thereby helping to prevent harmful media in the external environment from directly entering the cabinet body and affecting the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a structural schematic diagram of an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0041] Figure 2 It is a first structural schematic diagram of an air duct side of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0042] Figure 3 It is a first structural schematic diagram of an air inlet side of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0043] Figure 4 It is a first cross-sectional structural schematic diagram of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0044] Figure 5 is a second cross-sectional structural schematic diagram of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0045] Figure 6 is a third cross-sectional structural schematic diagram of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0046] Figure 7is a fourth cross-sectional structural schematic diagram of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0047] Figure 8 yes Figure 7 A schematic diagram of the front structure of the air inlet side;

[0048] Fig. 9 yes Figure 7 A schematic diagram of the front view structure of the air duct side;

[0049] Fig.10 is a fifth cross-sectional structural schematic diagram of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0050] Fig.11 yes Fig.10 An enlarged view of part A;

[0051] Fig.12 yes Fig.10 A side view structural schematic diagram of;

[0052] Fig.13 is a sixth cross-sectional structural schematic diagram of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0053] Fig.14 is a second structural schematic diagram of an air inlet side of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0054] Fig.15 is a second structural schematic diagram of an air duct side of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0055] Fig.16 It is a third structural schematic diagram of the air duct side of an exhaust air duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure.

[0056] Description of reference numerals:

[0057] 100. Exhaust duct assembly;

[0058] 1. air duct housing; 11. air duct side wall; 111. first air inlet section; 112. second air inlet section; 12. circumferential retaining wall; 121. rotating hole; 122. folding edge; 13. air duct; 14. first air inlet; 15. second air inlet; 16. air inlet cavity; 17. filter cavity; 18. air outlet cavity;

[0059] 2. first guide member; 21. first guide plate; 211. first plate surface; 22. second guide plate; 221. second plate surface; 23. side edge; 24. air outlet; 25. connecting plate;

[0060] 3. Second guide member; 31. Third guide plate; 311. Third plate surface; 32. Fourth guide plate; 33. Rotating shaft;

[0061] 4. The first fan;

[0062] 5. Second fan;

[0063] 6. Filter element;

[0064] 200, cabinet body; 201, cabinet door; 2011, inner wall; 2012, exhaust port; 202, cabinet body;

[0065] 300, battery pack;

[0066] 400. Power module. DETAILED DESCRIPTION

[0067] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0068] The present embodiment relates to an exhaust gas energy storage cabinet, which may be, for example, a battery energy storage cabinet. Figure 1 is a schematic diagram of the structure of an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure, such as Figure 1 As shown, the exhaust energy storage cabinet includes a cabinet 200 and an exhaust duct assembly 100, and the cabinet 200 is used to place multiple battery packs 300. The exhaust duct assembly 100 is fixed to the inner wall 2011 of the cabinet 200. In other words, the exhaust duct assembly 100 can be arranged inside the cabinet 200. In addition, the exhaust duct assembly 100 includes an air duct housing 1 extending along the height direction H of the cabinet 200, a first air guide 2, a first fan 4, and a second fan 5. Figure 1 As shown, the height direction H may be, for example, a direction from the top of the cabinet body 200 to the bottom of the cabinet body 200 .

[0069] Figure 2 is a schematic structural diagram of the air duct side of an exhaust air duct assembly provided by an exemplary embodiment of the present disclosure, Figure 3 It is a structural schematic diagram of the air inlet side of an exhaust duct assembly provided by an exemplary embodiment of the present disclosure, wherein the duct side refers to one side of the duct surrounded by the duct shell 1 in the exhaust duct assembly, and the air inlet side refers to the side of the exhaust duct assembly for receiving the incoming airflow, and the duct side and the air inlet side are opposite to each other.

[0070] like Figure 1 and Figure 3As shown, the air duct housing 1 includes an air duct side wall 11 and a circumferential retaining wall 12. The air duct side wall 11 is arranged relatively spaced apart from the inner wall 2011 of the cabinet 200. The circumferential retaining wall 12 surrounds the edge of the air duct side wall 11 and is arranged between the air duct side wall 11 and the inner wall 2011. Thus, the inner wall 2011 of the cabinet 200, the air duct side wall 11 and the circumferential retaining wall 12 cooperate with each other to form an air duct 13 for air flow. Figure 2 The side wall 11 of the air duct is provided with a first air inlet 14 and a second air inlet 15 distributed along the height direction H, and the second air inlet 15 is located below the first air inlet 14, that is, the first air inlet 14 and the second air inlet 15 are arranged in sequence along the height direction H, or in other words, the second air inlet 15 is closer to the bottom of the cabinet body 200 than the first air inlet 14.

[0071] The first fan 4 is used to suck the gas inside the cabinet 200 into the air duct housing 1 through the first air inlet 14, and the second fan 5 is used to suck the gas inside the cabinet 200 into the air duct housing 1 through the second air inlet 15. In specific implementation, the fan (including the first fan 4 and the second fan 5) in the exhaust duct assembly 100 can extract the gas in the cabinet 200 regularly or when the gas concentration in the cabinet 200 reaches a set threshold, and discharge it to the outside of the cabinet 200 through the air duct 13 provided by the exhaust duct assembly 100, thereby realizing active exhaust of the energy storage cabinet.

[0072] Combination Figure 1 and Figure 2 As shown, the first air guide member 2 is located in the air duct housing 1 and between the air duct side wall 11 and the inner wall 2011, covering at least a portion of the second air inlet 15; the connection between the first edge of the first air guide member 2 and the air duct side wall 11 is located between the first air inlet 14 and the second air inlet 15, and the second edge of the first air guide member 2 is spaced from the air duct side wall 11 to form an air outlet 24, and the first edge and the second edge are two opposite edges of the first air guide member 2 along the height direction.

[0073] The first air inlet 14 can be arranged near one end of the air duct side wall 11, and the second air inlet 15 is adjacent to the first air inlet 14 and can be spaced a long distance from one end of the air duct side wall 11, so that after the air duct side wall 11 and the inner wall 2011 of the cabinet 200 cooperate to form the air duct 13, the gas sucked into the air duct 13 by the first fan 4 and the second fan 5 will flow in the direction from the first air inlet 14 to the second air inlet 15. That is, the air outlet direction F of the air duct 13 is the direction from the first air inlet 14 to the second air inlet 15, and when the air duct housing 1 extends along the height direction of the cabinet 200, the air outlet direction F is consistent with the height direction H of the cabinet 200.

[0074] In other words, the exhaust duct assembly may have two air inlets sequentially opened along the air outlet direction of its internal air duct, each air inlet corresponding to a fan, and the exhaust duct assembly at least partially covers the downstream air inlet through the first guide member, and blocks the side of the first guide member close to the upstream air inlet between the two air inlets to isolate the two air inlets, thereby reducing the dual-fan vortex, reducing turbulence, and preventing the airflow discharged from the upstream fan into the air duct through the upstream air inlet from escaping from the downstream air inlet, thereby reducing the air intake interference between fans and improving exhaust efficiency.

[0075] like Figure 1 As shown, the cabinet 200 includes a cabinet door 201, the inner wall of the cabinet door 201 faces the multiple battery packs 300, and the exhaust duct assembly 100 is fixed to the inner wall of the cabinet door 201. In an example, the cabinet 200 may also include a cabinet body 202, the battery pack 300 may be placed in a receiving cavity formed by the cabinet body 202, the cabinet door 201 may be rotatably connected to the cabinet body 202, and when the cabinet door 201 is closed, the inner wall of the cabinet door 201 may face the multiple battery packs 300 accommodated in the cabinet body 202.

[0076] When the exhaust duct assembly 100 is disposed on the inner side of the cabinet door 201, it can be used as part of the air conditioning system to exhaust and dissipate heat from the battery pack 300. Figure 1 As shown, the cabinet door 201 may be provided with an exhaust port 2012, and the exhaust port 2012 communicates with the air duct housing 1 and the space enclosed by the inner wall 2011 of the cabinet body 200. It can be understood that Figure 1 The exhaust port 2012 is shielded and shown in dotted line form. In other examples, the exhaust duct assembly 100 may also be disposed in the cabinet body 202 and adjacent to the battery pack 300 (or power module 400); or, the energy storage cabinet may include multiple exhaust duct assemblies 100, which may be disposed at different positions along the height direction of the cabinet body 200 in the energy storage cabinet to ventilate gases of different densities. In addition, as Figure 1 As shown, the energy storage cabinet may further include a power module 400 housed in the cabinet body 202 , and the power module 400 may be used to control the charging and discharging of the battery pack 300 .

[0077] In one example, if Figure 2 and Figure 3As shown, the air duct housing 1 can be open. In this case, a folded edge 122 can be formed on the side of the circumferential retaining wall 12 away from the air duct side wall 11. When the exhaust air duct assembly is fixed to the cabinet 200, the air duct side of the exhaust air duct assembly can face the inner wall 2011 of the cabinet 200, so that the folded edge 122 can fit with the inner wall 2011 and be fixed to the inner wall 2011 by connecting parts such as screws, so as to close the air duct 13 formed between the air duct side wall 11 and the circumferential retaining wall 12 by the inner wall 2011. The air duct housing 1 can be rectangular as a whole or circular, and this embodiment does not limit this.

[0078] It can be understood that the first air guide 2 in the air duct housing 1 can only isolate a part of the first air inlet 14 and the second air inlet 15, or can completely isolate the first air inlet 14 and the second air inlet 15. In one example, the first end and the second end of the first air guide 2 have a height difference in the direction perpendicular to the inner wall 2011, so that the second end of the first air guide 2 is lifted relative to the first end and suspended relative to the air duct side wall 11 to form the air outlet 24. The direction perpendicular to the inner wall 2011 can also be understood as the depth direction of the air duct 13, and the depth direction can be parallel to the opening direction of the second air inlet 15.

[0079] The airflow entering through the second air inlet 15 (hereinafter referred to as the "second airflow") can enter the air duct housing 1 (air duct 13) through the air outlet 24. In addition, the first edge of the first air guide 2 can be fitted with the air duct side wall 11 along the width direction of the air duct side wall 11 so as to be closedly connected with the air duct side wall 11, so as to prevent the airflow entering through the first air inlet 14 (hereinafter referred to as the "first airflow") from entering the second air inlet 15 through the gap between the first edge of the first air guide 2 and the air duct side wall 11. The width direction of the air duct side wall 11 can be perpendicular to the extension direction of the exhaust air duct assembly 100 (or the air duct housing 1), and thus perpendicular to the height direction H of the cabinet 200, and the width direction can be parallel to the inner wall 2011 of the cabinet 200. In the present disclosure, the width direction of the air duct side wall 11 can also be understood as the width direction of the air duct 13, and the width direction is perpendicular to the air outlet direction F of the air duct 13, and perpendicular to the depth direction of the air duct 13. When the air duct housing 1 is rectangular, the width of the air duct side wall 11 (air duct 13) may be the distance between two side walls that are oppositely arranged perpendicular to the height direction H (air outlet direction F).

[0080] In one example, the first edge of the first guide member 2 may be continuous, and the length of the first edge may not be less than the inner diameter of the second air inlet 15; in other examples, the length of the first edge of the first guide member 2 may be less than the inner diameter of the second air inlet 15, or the first edge may be segmented.

[0081] In a specific implementation, the extension length of the first air guide 2 in the air outlet direction of the air duct 13 may be smaller than the inner diameter of the second air inlet 15, so that the first air guide 2 may only cover a portion of the second air inlet 15; or, the extension length of the first air guide 2 in the air outlet direction of the air duct 13 may be equal to or greater than the inner diameter of the second air inlet 15, so that the first air guide 2 may completely cover the second air inlet 15 to fully isolate the first air inlet 14 from the second air inlet 15. That is, the first air guide 2 at least partially covers the second air inlet 15.

[0082] The first fan 4 can be arranged opposite to the first air inlet 14, and is used to exhaust air into the air duct 13 through the first air inlet 14. Similarly, the second fan 5 can be arranged opposite to the second air inlet 15, and is used to exhaust air into the air duct 13 through the second air inlet 15 and the air outlet 24. In one example, the first fan 4 and the second fan 5 can be located outside the air duct housing 1 and on the air inlet side of the air duct housing 1, so that the first fan 4 and the second fan 5 can draw air from the cabinet 200, and then exhaust air into the air duct 13 through the first air inlet 14 and the second air inlet 15. In addition, the first fan 4 and the second fan 5 can be fixed to the air duct housing 1 by connecting members such as bolts or screws. Alternatively, the first fan 4 and the second fan 5 can also be fixed in position by other components, so as to be independent of the air duct housing 1.

[0083] The structure of the first air guide member 2 will be described below.

[0084] Combination Figure 1 as well as Figure 4 , Figure 5 or Figure 6 As shown, the first air guide 2 is arranged in the air duct housing 1, and the first air guide 2 does not exceed the folded edge 122 on the circumferential retaining wall 12 that is suitable for connecting with the inner wall 2011 of the cabinet 200 in the direction perpendicular to the inner wall 2011, so that when the air duct housing 1 is assembled and fixed to the inner wall 2011, the first air guide 2 can be accommodated between the opposite air duct side wall 11 and the inner wall 2011. In other words, the distance between the second edge of the first air guide 2 that is spaced apart from the air duct side wall 11 and the air duct side wall 11 is smaller than the distance between the air duct side wall 11 and the inner wall 2011.

[0085] like Figure 4 , Figure 5 and Figure 6As shown, since the first flow guide 2 is arranged between the first air inlet 14 and the second air inlet 15 and covers the second air inlet 15, the first air flow entering the air duct housing 1 (air duct 13) through the first air inlet 14 flows from the side of the first flow guide 2 away from the second air inlet 15 along the wind outlet direction F, and the second air flow entering the air duct housing 1 (air duct 13) through the second air inlet 15 flows from the side of the first flow guide 2 toward the second air inlet 15 along the wind outlet direction F, so that the first flow guide 2 can not only isolate the first air inlet 14 and the second air inlet 15, so that the airflow entering the air duct through the two air inlets can flow along the opposite sides of the first flow guide 2 respectively, but also provide a guiding effect for the airflow entering the air duct through the two air inlets.

[0086] In order to reduce the resistance of the first guide member 2 to the second airflow in the air outlet direction F, at least a portion of the first guide member 2 close to the first air inlet 14 can be arranged to be inclined in the air outlet direction F away from the air duct side wall 11 to provide a guiding effect for the second airflow. Figure 1 as well as Figure 4 As shown, the first air guide 2 is a plate-shaped component, and the first air guide 2 is inclined in the direction away from the air duct side wall 11 along the height direction H (or the air outlet direction F).

[0087] In other examples, such as Figure 5 As shown, the first guide member 2 includes a first guide plate 21 and a second guide plate 22 connected by bending, wherein the first edge of the first guide member 2 is one side of the first guide plate 21 close to the first air inlet 14, and the other side of the first guide plate 21 is connected to the second guide plate 22; the second guide plate 22 at least partially covers the second air inlet 15. In other words, the first guide plate 21 is close to the first air inlet 14 relative to the second guide plate 22, so that along the air outlet direction F, the first guide plate 21 is located upstream of the second guide plate 22. In addition, the first guide plate 21 is inclined in the height direction H (or the air outlet direction F) in the direction away from the air duct side wall 11. In other words, the first guide plate 21 can be inclined relative to the air duct side wall 11, and the first guide plate 21 is inclined so that the farther away from the first air inlet 14, the farther away from the air duct side wall 11.

[0088] In one example, if Figure 5 As shown, the second guide plate 22 can be perpendicular to the opening direction L2 of the second air inlet 15, so that the second guide plate 22 can be at the same height as the second edge of the first guide plate 21 away from the first air inlet 14, without further reducing the flow channel space of the first airflow at the second guide plate 22. In addition, the distance between the second guide plate 22 and the air duct side wall 11 is smaller than the distance between the air duct side wall 11 and the inner wall 2011, so as to avoid affecting the assembly between the air duct housing 1 and the inner wall 2011.

[0089] In the disclosed embodiment, the opening direction of the air inlet (including the first air inlet 14 and the second air inlet 15) can be understood as a direction parallel to the central axis of the air inlet. The second guide plate 22 is perpendicular to the opening direction of the second air inlet 15, which can be understood as the two plate surfaces of the second guide plate 22 facing and away from the second air inlet 15 are respectively perpendicular to the opening direction of the second air inlet 15. In this case, the second guide plate 22 can be a flat plate with uniform thickness, and the two plate surfaces of the second guide plate 22 facing and away from the air duct side wall 11 are parallel to each other.

[0090] In another example, combining Figure 1 and Figure 6 As shown, the second guide plate 22 is inclined in the direction away from the duct side wall 11 along the height direction H (or the air outlet direction F). That is, the plate surface of the second guide plate 22 facing and away from the second air inlet 15 can be inclined relative to the duct side wall 11, wherein the plate surface of the second guide plate 22 facing the second air inlet 15 is inclined so as to be further away from the duct side wall 11 as it is further away from the first air inlet 14, so as to provide guidance for the second air flow flowing from the second guide plate 22 to the second air inlet 15 side; similarly, the plate surface of the second guide plate 22 away from the second air inlet 15 is also inclined so as to be further away from the duct side wall 11 as it is further away from the first air inlet 14. In the case where the second guide plate 22 is a flat plate with uniform thickness, the two plate surfaces of the second guide plate 22 facing and away from the duct side wall 11 are parallel to each other, and the angle between the two and the opening direction L2 of the second air inlet 15 opened on the duct side wall 11 is consistent.

[0091] In addition, if Figure 6 As shown, when the second guide plate 22 is tilted, the angle α1 between the first plate surface 211 of the first guide plate 21 away from the second air inlet 15 and the opening direction L2 of the second air inlet 15 is smaller than the angle α2 between the second plate surface 221 of the second guide plate 22 away from the second air inlet 15 and the opening direction L2 of the second air inlet 15, so that along the air outlet direction F, the inclination degree of the first guide member 2 as a whole relative to the side wall 11 of the air duct becomes more and more gentle. In this case, the first airflow flowing from the side of the first guide member 2 away from the second air inlet 15 can flow to the air outlet end of the air duct 13 through the first guide plate 21 and the second guide plate 22 successively, so that the first guide plate 21 and the second guide plate 22 provide guidance for the first airflow along the air outlet direction F.

[0092] It can be understood that when the angle α1 between the first plate surface 211 of the first guide plate 21 and the opening direction L2 of the second air inlet 15 is equal to the angle α2 between the second plate surface 221 of the second guide plate 22 and the opening direction L2 of the second air inlet 15, the first guide plate 21 and the second guide plate 22 can be integrally formed into a flat plate, so as to be formed as follows: Figure 4 When the angle α1 between the first plate surface 211 of the first guide plate 21 and the opening direction L2 of the second air inlet 15 is smaller than the angle α2 between the second plate surface 221 of the second guide plate 22 and the opening direction L2 of the second air inlet 15, the second guide plate 22 can be bent relative to the first guide plate 21, and the first guide member 2 can be approximately L-shaped or bucket-shaped.

[0093] In one example, the first guide plate 21 may also be a flat plate with uniform thickness, and the thickness of the first guide plate 21 and the second guide plate 22 may be consistent. The angle between the first guide plate 21 and the second guide plate 22 may be an obtuse angle. In other examples, the first guide plate 21 or the second guide plate 22 may also be a plate-like structure with varying thickness.

[0094] like Figure 7 As shown, the two opposite side edges 23 of the first air guide 2 can be connected to the circumferential baffle 12 respectively, so that the first air guide 2 can cooperate with the air duct side wall 11 and the circumferential baffle 12 to enclose a flow channel space. The second airflow generated by the second fan 5 enters the flow channel space from the second air inlet 15 and leaves the flow channel space from the air outlet 24. In addition, the first edge of the first air guide 2 connected between the two opposite side edges 23 can be continuously attached to and connected to the air duct side wall 11, so that except for the second air inlet 15 and the air outlet 24, the rest of the flow channel space is closed.

[0095] In other examples, only one side 23 of the first air guide 2 may be connected to the circumferential retaining wall 12, and the other side 23 is spaced apart from the corresponding circumferential retaining wall 12 to have a gap, and the width of the first air guide 2 may be smaller than the width of the air duct 13, so that in addition to the air outlet 24, there are other air outlet gaps between the first air guide 2 and the air duct housing 1. In other words, at least one side 23 of the first air guide 2 is connected to the circumferential retaining wall 12, and the side 23 is connected between the first edge and the second edge of the first air guide 2. In other examples, the two side edges of the first air guide 2 may each have a gap with the circumferential retaining wall 12, but the first air guide 2 is satisfied with covering a part of the second air inlet 15 or completely covering the second air inlet 15 along the width direction of the air duct 13.

[0096] Figure 8 and Fig. 9 The front view structural diagram of the air inlet side and the front view structural diagram of the air outlet side of the exhaust duct assembly are respectively shown. Fig. 9 The second air inlet 15 is blocked by the first air guide 2 and is shown by a dotted line. Figure 1 as well as Figure 7 and Figure 8As shown, the extension length of the first air guide 2 in the height direction H (or the air outlet direction F) may be greater than or equal to the inner diameter of the second air inlet 15, so that the orthographic projection of the second air inlet 15 on the set plane is located within the orthographic projection of the first air guide 2 on the set plane, wherein the set plane is perpendicular to the opening direction of the second air inlet 15, so that the first air guide 2 completely covers the second air inlet 15.

[0097] In one example, one side of the first guide plate 21 close to the first air inlet 14 (i.e., the first edge of the first guide member 2) can be set between the first air inlet 14 and the second air inlet 15, or close to the second air inlet 15, and the first guide plate 2 can also be used to cover a portion of the second air inlet 15 to provide guidance for the second airflow along the air outlet direction F.

[0098] The first air guide 2 can be welded to the circumferential retaining wall 12 of the air duct housing 1 through the side edge 23 to fix its position. In other examples, when the interval between the first air inlet 14 and the second air inlet 15 is sufficient, such as Figure 4 , Figure 5 and Figure 6 As shown, the first air guide 2 may further include a connecting plate 25, which is connected to an end of the first air guide 21 away from the second air guide 22 and is attached to the air duct side wall 11. Connectors such as bolts or screws may pass through the connecting plate 25 and the air duct side wall 11 to fix the first air guide 2. In other examples, the first air guide 2 may be directly welded to the air duct side wall 11.

[0099] The exhaust duct assembly provided in this embodiment can reduce the double fan vortex, reduce the turbulence, and further reduce the air intake interference between the first fan 4 and the second fan 5, thereby improving the exhaust efficiency, by arranging the first guide member 2 for isolating the first air inlet 14 and the second air inlet 15 in the air duct housing 1 for forming the air duct 13. However, the first guide member 2 may hinder the first airflow entering the air duct 13 through the first air inlet 14 from flowing along the air outlet direction F. In order to reduce the impact of the first guide member 2 and reduce the air duct flow resistance of the first airflow generated by the first fan 4, the exhaust duct assembly also includes a second guide member 3 configured to guide the airflow entering the air duct housing 1 through the first air inlet 14, so as to improve the exhaust efficiency of the first fan 4.

[0100] The structure of the second air guide member 3 will be described below.

[0101] In one example, the exhaust duct assembly may include a plurality of second flow guide members 3, Figure 7 and Fig.10The exhaust air duct assembly includes three second air guides 3 as an example. The multiple second air guides 3 are located in the air duct housing 1 and are arranged corresponding to the first air inlet 14, so as to guide the first airflow entering the air duct housing 1 (air duct 13) through the first air inlet 14 so that the first airflow can flow along the air outlet direction F. Figure 8 and Fig. 9 As shown, the orthographic projection of at least a portion of the second air guide 3 on the set plane may be located within the orthographic projection of the first air inlet 14 on the set plane, and the set plane is perpendicular to the air intake direction of the first air inlet 14. In other examples, the exhaust duct assembly may also include only one second air guide 3.

[0102] For any second guide member 3, the second guide member 3 may include a third guide plate 31. In one example, Fig.10 and Fig.11 As shown, the third guide plate 31 is rotatably connected to the circumferential retaining wall 12. In specific implementation, the side of the third guide plate 31 may be connected to a rotating shaft 33, and the circumferential retaining wall 12 is provided with a rotating hole 121, and the rotating shaft 33 may partially extend into the rotating hole 121 and may rotate in the rotating hole 121.

[0103] In other examples, combined Figure 1 as well as Figure 7 and Fig.10 As shown, the third guide plate 31 is fixedly connected to the circumferential baffle 12, and the third guide plate 31 is inclined along the height direction H (or the air outlet direction F) in a direction away from the air duct side wall 11, so that the first airflow generated by the first fan 4 is guided to the air outlet end of the air duct 13 through the third guide plate 31.

[0104] like Fig.12 As shown, when the third guide plate 31 is fixedly connected to the circumferential baffle wall 12, the angle α3 between the third plate surface 311 of the third guide plate 31 away from the second air inlet 15 and the opening direction L2 of the second air inlet 15 is not greater than the angle α1 between the first plate surface 211 of the first guide plate 21 away from the second air inlet 15 and the opening direction L2 of the second air inlet 15, so that the inclination of the third guide plate 31, the first guide plate 21 and the second guide plate 22 relative to the side wall 11 of the air duct becomes slower and slower, and when the first airflow flows to the air outlet end of the air duct 13 through the third guide plate 31, the first guide plate 21 and the second guide plate 22 successively, the first airflow can be guided to flow to the air outlet end of the air duct 13. In one example, the angle α3 between the third plate surface 311 of the third guide plate 31 and the opening direction L2 of the second air inlet 15 may be substantially equal to the angle α1 between the first plate surface 221 of the first guide plate 21 and the opening direction L2 of the second air inlet 15 .

[0105] In the case where the exhaust air duct assembly includes a plurality of second guide members 3, a portion of the plurality of second guide members 3 may be rotatably connected to the circumferential retaining wall 12, and another portion of the second guide members 3 may be fixedly connected to the circumferential retaining wall 12. In addition, a portion of the plurality of second guide members 3 may be a plate-shaped member, thereby only including the third guide plate 31, and another portion of the second guide members 3 may further include a fourth guide plate 32, and the fourth guide plate 32 is connected to the third guide plate 31 in a bent manner, so that the second guide member 3 may be approximately L-shaped or bucket-shaped.

[0106] In one example, if Fig.12 As shown, the fourth guide plate 32 is connected to one end of the third guide plate 31 close to the air duct side wall 11, and the fourth guide plate 32 is parallel to the opening direction L1 of the first air inlet 14. When the first airflow generated by the first fan 4 enters the air duct housing 1 (air duct 13) through the first air inlet 14, it can be first diverted by the fourth guide plate 32, and then guided to the air outlet end of the air duct 13 by the fourth guide plate 32. Fig.12 As shown, the included angle between the fourth guide plate 32 and the third guide plate 31 may be an obtuse angle.

[0107] Fig.12 In the example, the opening direction L1 of the first air inlet 14 is parallel to the opening direction L2 of the second air inlet 15. In other examples, by designing the air duct side wall 11 of the air duct housing 1, the opening direction L1 of the first air inlet 14 and the opening direction L2 of the second air inlet 15 can intersect.

[0108] The structure of the air duct housing 1 will be described below.

[0109] like Fig.13 and Fig.14 As shown, the air duct side wall 11 includes a first air inlet section 111 and a second air inlet section 112, wherein the first air inlet 14 is provided in the first air inlet section 111, and the second air inlet 15 is provided in the second air inlet section 112. The first air inlet section 111 is connected to the second air inlet section 112 in a bent manner, and one end of the first air inlet section 111 away from the second air inlet section 112 is inclined toward the direction close to the first air guide 2. In other words, the central axis of the first air inlet 14 and the central axis of the second air inlet 15 may intersect at one side (the air duct side) of the air duct housing 1 where the air duct 13 is formed.

[0110] In one example, part of the duct side wall 11 of the air inlet section in the duct housing 1 can be lifted toward the duct side to form a first air inlet section 111, while the rest of the part remains in a flat plate shape to serve as a second air inlet section 112. The angle between the first air inlet section 111 and the second air inlet section 112 can be an obtuse angle. When the exhaust duct assembly is assembled with a mounting carrier such as a cabinet 200 (for example, a cabinet door 201), the opening direction L1 of the first air inlet 14 can be improved from being perpendicular to the mounting carrier to intersecting at an obtuse angle, so that the mounting carrier can serve as a guide structure to guide the first airflow to the outlet end of the duct 13, thereby preventing the first airflow generated by the first fan 4 from directly blowing the mounting carrier such as the cabinet door 201, thereby reducing the air inlet flow resistance.

[0111] In addition, if Fig.14 As shown, when the first air inlet 14 is inclined relative to the second air inlet 15, the first fan 4 can be arranged opposite to the first air inlet 14, and the second fan 5 can be arranged opposite to the second air inlet 15, so that the first fan 4 and the second fan 5 are also arranged relatively inclined.

[0112] Combination Figure 1 as well as Fig.15 As shown, the air duct housing 1 may include an air inlet chamber 16, a filter chamber 17, and an air outlet chamber 18 arranged in sequence along the height direction H (or the air outlet direction F), wherein the first air inlet 14 and the second air inlet 15 are located in the air inlet chamber 16, and the first air inlet section 111 and the second air inlet section 112 mentioned above may serve as the air duct side wall 11 of the portion where the air inlet chamber 16 is located. The air outlet chamber 18 may be located at the air outlet end of the air duct 13, and the air outlet chamber 18 may be connected to the air outlet 2012 opened on the cabinet 200, so as to discharge the airflow in the exhaust duct housing 1 (specifically, the air duct 13). When the exhaust duct assembly 100 is assembled together with a mounting carrier such as a cabinet door 201, the exhaust port 2012 on the cabinet door 201 can face the air outlet cavity 18, so that the airflow generated by the first fan 4 and the second fan 5 enters the air inlet cavity 16 through the first air inlet 14 and the second air inlet 15, and then enters the air outlet cavity 18 through the filter cavity 17, and is discharged from the exhaust port 2012 corresponding to the air outlet cavity 18.

[0113] like Fig.15 As shown, the exhaust duct assembly may further include a filter element 6, and the filter element 6 is located in the filter chamber 17. In other words, the filter element 6 may be located on a side of the second air inlet 15 away from the first air inlet 14, and the filter element 6 may be configured to filter the medium entering the first air inlet 14 and the second air inlet 15 from the external environment, thereby preventing harmful media from entering the cabinet where the exhaust duct assembly is located through the first air inlet 14 and the second air inlet 15.

[0114] In one example, the filter element 6 may be a labyrinth seal structure made of polyurethane or other materials, which can produce a throttling effect on the gas through the comb teeth gap to play a sealing role. For example, a plurality of smaller filter air ducts can be formed in the filter element 6, and the filter air ducts in the filter element 6 can be arranged to intersect with the air duct 13. In addition, in combination with Figure 2 and Fig.16 As shown, in the depth direction of the air duct 13 , the filter element 6 may be higher than the first air guide element 2 , so that the filter element 6 can protect the air outlet 24 as a whole.

[0115] The exhaust duct assembly provided by the embodiment of the present disclosure can reduce the double-fan vortex, reduce the turbulence, and further reduce the air intake interference between the first fan 4 and the second fan 5, thereby improving the exhaust efficiency by arranging a first guide member 2 for isolating the first air inlet 14 and the second air inlet 15 in the duct shell 1 that encloses the air duct 13; by arranging the second guide member 3 at the first air inlet 14, a guiding effect is provided for the airflow entering the duct shell 1 (specifically, the air duct 13) through the first air inlet 14 to flow along the air outlet direction of the air duct 13, thereby reducing the air duct flow resistance and further improving the exhaust efficiency; in addition, by arranging the air duct side wall 11 of the air duct shell 1 so that the end of the first air inlet section 111 where the first air inlet 14 is located away from the second air inlet section 112 where the second air inlet 15 is inclined toward the direction close to the first guide member 2, the cabinet door 201 and other mounting carriers integrated with the exhaust duct assembly 100 can be used as a guide structure to guide the first airflow to the air outlet end of the air duct 13, thereby reducing the air intake flow resistance and further improving the exhaust efficiency.

[0116] In one example, the exhaust energy storage cabinet can be used in shopping malls, industrial parks, solar storage charging stations, factories and other scenarios, and meet the requirements of T / CEC373-2020 that it should be exhausted once every 1 minute, and the exhaust volume should not be less than the volume of the prefabricated cabin.

[0117] In the description of the present disclosure, it should be understood that the terms (if any) "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0118] Unless otherwise clearly specified and limited, the terms (if any) "installed", "connected", and "connected" 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 mechanical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0119] In addition, the terms "first" and "second", if any, are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0120] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0121] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0122] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. An exhaust energy storage cabinet, characterized in that: The exhaust energy storage cabinet comprises a cabinet (200) and an exhaust air duct assembly (100), the cabinet (200) being used to place a plurality of battery packs (300), the exhaust air duct assembly (100) being fixed to an inner wall (2011) of the cabinet (200), and the exhaust air duct assembly (100) comprising an air duct housing (1) extending along a height direction (H) of the cabinet (200), a first air guide (2), a first fan (4), and a second fan (5); The air duct housing (1) comprises an air duct side wall (11) and a circumferential retaining wall (12); the air duct side wall (11) and the inner wall (2011) are arranged relatively spaced apart; the circumferential retaining wall (12) surrounds the edge of the air duct side wall (11) and is arranged between the air duct side wall (11) and the inner wall (2011); The side wall (11) of the air duct is provided with a first air inlet (14) and a second air inlet (15) distributed along the height direction (H), and the second air inlet (15) is located below the first air inlet (14); the first fan (4) is used to suck the gas inside the cabinet (200) into the air duct housing (1) through the first air inlet (14), and the second fan (5) is used to suck the gas inside the cabinet (200) into the air duct housing (1) through the second air inlet (15); The first flow guide (2) is located inside the air duct housing (1) and between the air duct side wall (11) and the inner wall (2011), covering at least a portion of the second air inlet (15); the connection between the first edge of the first flow guide (2) and the air duct side wall (11) is located between the first air inlet (14) and the second air inlet (15), the second edge of the first flow guide (2) and the air duct side wall (11) are spaced apart to form an air outlet (24), and the first edge and the second edge are two edges of the first flow guide (2) that are opposite to each other along the height direction (H).

2. The energy storage cabinet according to claim 1, characterized in that: The distance between the second edge of the first air guide (2) and the side wall (11) of the air duct is smaller than the distance between the side wall (11) of the air duct and the inner wall (2011).

3. The energy storage cabinet according to claim 1, characterized in that: The first air guide (2) is a plate-shaped component, and the first air guide (2) is inclined in the direction away from the air duct side wall (11) along the height direction (H).

4. The energy storage cabinet according to claim 1, characterized in that: The first guide member (2) comprises a first guide plate (21) and a second guide plate (22) which are connected to each other by bending, wherein the first edge of the first guide member (2) is a side of the first guide plate (21) close to the first air inlet (14), the other side of the first guide plate (21) is connected to the second guide plate (22), and the first guide plate (21) is inclined along the height direction (H) in a direction away from the air duct side wall (11); the second guide plate (22) at least partially covers the second air inlet (15).

5. The energy storage cabinet according to claim 4, characterized in that: The second guide plate (22) is perpendicular to the opening direction (L2) of the second air inlet (15); and the distance between the second guide plate (22) and the air duct side wall (11) is smaller than the distance between the air duct side wall (11) and the inner wall (2011).

6. The energy storage cabinet according to claim 4, characterized in that: The second guide plate (22) is inclined along the height direction (H) in a direction away from the air duct side wall (11), and an angle between a first plate surface (211) of the first guide plate (21) facing away from the second air inlet (15) and an opening direction (L2) of the second air inlet (15) is smaller than an angle between a second plate surface (221) of the second guide plate (22) facing away from the second air inlet (15) and the opening direction (L2) of the second air inlet (15).

7. The energy storage cabinet according to claim 1, characterized in that: The orthographic projection of the second air inlet (15) on a set plane is located within the orthographic projection of the first air guide (2) on the set plane, wherein the set plane is perpendicular to the opening direction of the second air inlet (15).

8. The energy storage cabinet according to claim 1, characterized in that: At least one side edge (23) of the first flow guide member (2) is connected to the circumferential retaining wall (12), and the side edge (23) is connected between the first edge and the second edge.

9. The energy storage cabinet according to claim 4, characterized in that: The exhaust air duct assembly (100) further comprises at least one second air guide member (3), wherein the second air guide member (3) is configured to guide the airflow entering the air duct housing (1) via the first air inlet (14), wherein: At least one of the second air guide members (3) comprises a third air guide plate (31), wherein the third air guide plate (31) is rotatably connected to the circumferential retaining wall (12); or, the third air guide plate (31) is fixedly connected to the circumferential retaining wall (12), and the third air guide plate (31) is inclined in the height direction (H) in a direction away from the air duct side wall (11).

10. The energy storage cabinet according to claim 9, characterized in that: When the third guide plate (31) is fixedly connected to the circumferential baffle wall (12), an angle between a third plate surface (311) of the third guide plate (31) facing away from the second air inlet (15) and an opening direction (L2) of the second air inlet (15) is not greater than an angle between a first plate surface (211) of the first guide plate (21) facing away from the second air inlet (15) and an opening direction (L2) of the second air inlet (15).

11. The energy storage cabinet according to claim 10, characterized in that: The second air guide member (3) further comprises a fourth air guide plate (32), the fourth air guide plate (32) being connected to an end of the third air guide plate (31) close to the air duct side wall (11), and the fourth air guide plate (32) being parallel to an opening direction (L1) of the first air inlet (14).

12. The energy storage cabinet according to any one of claims 1 to 11, characterized in that: The air duct side wall (11) comprises a first air inlet section (111) and a second air inlet section (112), wherein the first air inlet (14) is opened in the first air inlet section (111), and the second air inlet (15) is opened in the second air inlet section (112); The first air inlet section (111) is connected to the second air inlet section (112) in a bent manner, and an end of the first air inlet section (111) away from the second air inlet section (112) is inclined in a direction close to the first air guide (2).

13. The energy storage cabinet according to any one of claims 1 to 11, characterized in that: The exhaust air duct assembly (100) further comprises a filter element (6); The air duct housing (1) comprises an air inlet chamber (16), a filter chamber (17) and an air outlet chamber (18) arranged in sequence along the height direction (H), wherein the first air inlet (14) and the second air inlet (15) are located in the air inlet chamber (16), the filter element (6) is located in the filter chamber (17), and the air outlet chamber (18) is connected to an exhaust port (2012) provided on the cabinet (200) for exhausting the air flow in the air duct housing (1).

14. The energy storage cabinet according to any one of claims 1 to 11, characterized in that: The cabinet body (200) comprises a cabinet door (201), the inner wall of the cabinet door (201) faces the plurality of battery packs (300), and the exhaust air duct assembly (100) is fixed to the inner wall of the cabinet door (201).

15. The energy storage cabinet according to claim 14, characterized in that: An exhaust port (2012) is provided on the cabinet door (201), and the exhaust port (2012) is communicated with the space enclosed by the air duct housing (1) and the inner wall (2011).

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