Exhaust energy storage cabinet

Abstract

The present disclosure relates to the technical field of battery energy storage, and provides an exhaust energy storage cabinet. An exhaust air duct assembly in the exhaust energy storage cabinet comprises an air duct housing extending in the height direction of a cabinet body, a first flow guide member, a first fan, and a second fan. The first flow guide member is located in the air duct housing and between the air duct sidewall of the air duct housing and the inner wall of the cabinet body, the air duct side wall and the inner wall being oppositely spaced from each other, and covers at least part of a second air inlet. The connecting position of a first edge of the first flow guide member and the air duct sidewall is located between a first air inlet and the second air inlet. A second edge of the first flow guide member and the air duct sidewall 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 fans, thereby improving the exhaust efficiency.

Description

Exhaust energy storage cabinet

[0001] This application claims priority to Chinese patent application No. 202420247493.8, filed on January 31, 2024, and entitled “Exhaust Energy Storage Cabinet”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the technical field of battery energy storage, and in particular to an exhaust energy storage cabinet. Background Art

[0003] Energy storage cabinets integrate multiple energy storage batteries, along with electrical control components such as a battery management system and power control system, into a single cabinet, intelligently storing and releasing electrical energy. When the lithium-ion batteries in an energy storage cabinet experience thermal runaway due to thermal, mechanical, or electrical abuse, they release large amounts of flammable and explosive gases. If these gases are not promptly exhausted, there is a risk of explosion. Therefore, energy storage cabinets must have good exhaust systems.

[0004] In the related art, energy storage cabinets are usually equipped with fans to achieve active exhaust. When multiple fans are installed and exhaust air through the same air duct, the fans are prone to mutual interference, resulting in reduced exhaust efficiency.

[0005] Public content

[0006] The present disclosure provides an exhaust energy storage cabinet, which can reduce the air intake interference between fans and thereby improve the exhaust efficiency.

[0007] The exhaust energy storage cabinet includes a cabinet body and an exhaust duct assembly. The cabinet body is used to accommodate multiple battery packs. The exhaust duct assembly is fixed to the inner wall of the cabinet body. The exhaust 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. The height direction is the direction from the top of the cabinet body to the bottom of the cabinet body.

[0008] The air duct housing includes an air duct side wall and a circumferential retaining wall, wherein the air duct side wall is spaced apart from the inner wall, and the circumferential retaining wall surrounds the edge of the air duct side wall and is disposed between the air duct side wall and the inner wall;

[0009] The side wall of the air duct is provided with a first air inlet and a second air inlet distributed along the height direction, the second air inlet being located below the first air inlet; the first fan is used to draw the air inside the cabinet into the air duct housing through the first air inlet, and the second fan is used to draw the air inside the cabinet into the air duct housing through the second air inlet;

[0010] The first air 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 air 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 air guide is spaced 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 air guide along the height direction.

[0011] In the solution disclosed herein, the exhaust duct assembly is formed by sidewalls spaced relative to the inner wall of the cabinet body of the exhaust energy storage cabinet, and a circumferential retaining wall disposed between the sidewalls and the inner wall to form an air duct for the flow of gas drawn into the air inlet duct housing by the fan. A first flow guide is provided within the air duct housing to at least partially cover the air inlet (second air inlet) located downstream of the air duct, and one side of the first flow guide proximate to the air inlet (first air inlet) located upstream of the air duct is connected to the sidewall of the air duct. This first flow guide isolates the two air inlets, thereby reducing vortexes in the two fans and turbulence. It also prevents 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 air intake interference between fans and improving exhaust efficiency.

[0012] In a possible implementation, 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.

[0013] In the solution shown in the present disclosure, the first edge of the first air guide is connected to the side wall of the air duct, and the second edge opposite to the first edge is raised relative to the side wall of the air duct. By limiting the raised height of the second edge (that is, 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 can be accommodated as a whole in the space enclosed by the side wall of the air duct and the circumferential retaining wall without affecting the assembly between the air duct shell and the inner wall of the cabinet.

[0014] In a possible implementation, the first air guide is a plate-shaped component, and the first air guide is inclined in the height direction away from the side wall of the air duct.

[0015] In one possible implementation, the first air guide member includes a first air guide plate and a second air guide plate that are bent and connected to each other, wherein the first edge of the first air guide member is a side of the first air guide plate close to the first air inlet, the other side of the first air guide plate is connected to the second air guide plate, and the first air guide plate is inclined along the height direction toward the direction away from the side wall of the air duct; the second air guide plate at least partially covers the second air inlet.

[0016] The solution shown in the present disclosure is to tilt the first air guide member close to the first air inlet, or to tilt the first air guide member as a whole along the height direction of the cabinet (that is, the air outlet direction of the air flow in the air duct shell) in a direction away from the side wall of the air duct, so that the tilted part can provide guidance for the air flow 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.

[0017] 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.

[0018] The solution disclosed herein, by arranging the second deflector perpendicular to the opening direction of the second air inlet, can provide a flow passage space with a smaller dimensional variation along the depth direction of the air passage, regardless of whether it is a first airflow entering the air passage through the first air inlet or a second airflow entering the air passage through the second air inlet. This can better balance the guiding effect of the second deflector on the first and second airflows. The edge of the second deflector away from the first deflector is the second edge of the first deflector, thereby ensuring that the distance between the second deflector as a whole and the side wall of the air passage is less than the distance between the side wall of the air passage and the inner wall of the cabinet, that is, the distance between the second edge of the first deflector and the side wall of the air passage is less than the distance between the side wall of the air passage and the inner wall of the cabinet.

[0019] In one possible implementation, the second guide plate is inclined along the height direction toward the direction away from the side wall of the air duct, and 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 is smaller than the angle between the second plate surface of the second guide plate facing away from the second air inlet and the opening direction of the second air inlet.

[0020] 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 is set to be smaller than the inclination 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 airflow 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 airflow can enter the larger airflow space from a smaller airflow space (the airflow space is surrounded by the side of the first guide plate or the second guide plate facing away from the second air inlet and the cabinet door and other mounting carriers), thereby guiding the first airflow to flow in the air outlet direction, which helps to improve the exhaust efficiency.

[0021] In a possible implementation, an orthographic projection of the second air inlet on a set plane is located within an orthographic projection of the first air guide on the set plane, wherein the set plane is perpendicular to an opening direction of the second air inlet.

[0022] 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.

[0023] In a possible implementation, 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.

[0024] The solution shown in the present disclosure is that the side of the first flow guide is connected to the circumferential barrier 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 barrier 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, and helping to improve the exhaust efficiency.

[0025] In a possible implementation, the exhaust duct assembly further includes at least one second flow guide, wherein the second flow guide is configured to guide the airflow entering the duct housing through the first air inlet, wherein:

[0026] At least one of the second air guide members includes a third air guide plate, wherein the third air guide plate is rotatably connected to the circumferential retaining wall; or, the third air guide plate is fixedly connected to the circumferential retaining wall, and the third air guide plate is inclined along the height direction away from the side wall of the air duct.

[0027] 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 in the wind outlet direction, a third guide plate is provided to guide the first airflow so that it can flow in the wind outlet direction, thereby reducing the flow resistance of the air duct and ensuring the exhaust efficiency.

[0028] In one possible implementation, when the third guide plate is fixedly connected to the circumferential retaining 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.

[0029] In the solution shown in the present disclosure, when the third guide plate is fixed and tilted relative to the side wall of the air duct, its tilt degree is set to be greater than the tilt degree of the first guide plate, so that when the first airflow entering the air duct through the first air inlet flows through the third guide plate and the first guide plate in sequence along the air outlet direction, the first airflow can enter the larger airflow space from a smaller airflow space (the airflow space is surrounded by the side of the third guide plate or the first guide plate facing away from the second air inlet and the cabinet door and other mounting carriers), thereby guiding the first airflow to flow along the air outlet direction, which helps to improve the exhaust efficiency.

[0030] In a possible implementation, the second air guide further includes a fourth air guide plate, which is connected to an end of the third air guide plate close to the side wall of the air duct, and is parallel to an opening direction of the first air inlet.

[0031] 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.

[0032] 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 provided in the first air inlet section, and the second air inlet is provided in the second air inlet section;

[0033] 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 the first air guide.

[0034] In the solution shown in the present disclosure, when the exhaust duct assembly is assembled 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 airflow toward the air outlet end of the air duct, thereby avoiding the first airflow generated by the first fan from directly blowing onto the mounting carrier, reducing the air inlet flow resistance, and thus helping to improve the exhaust efficiency.

[0035] In a possible implementation, the exhaust duct assembly further includes a filter;

[0036] 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 for discharging the airflow in the air duct housing.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] The solution shown in the present disclosure facilitates direct connection with the exhaust duct assembly provided on the cabinet door by opening the exhaust port on the cabinet door; and the exhaust duct assembly can be blocked 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

[0042] FIG1 is a schematic structural diagram of an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0043] FIG2 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;

[0044] FIG3 is a first structural schematic diagram of an air inlet side of an exhaust duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0045] FIG4 is a first cross-sectional structural diagram of an exhaust duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0046] FIG5 is a second cross-sectional structural diagram of an exhaust duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0047] FIG6 is a third cross-sectional structural schematic diagram of an exhaust duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0048] FIG7 is a fourth cross-sectional structural diagram of an exhaust duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0049] FIG8 is a schematic front view of the structure of the air inlet side of FIG7;

[0050] FIG9 is a schematic front view of the structure of the air duct side of FIG7;

[0051] FIG10 is a fifth cross-sectional structural diagram of an exhaust duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0052] FIG11 is an enlarged view of portion A of FIG10 ;

[0053] FIG12 is a side structural schematic diagram of FIG10;

[0054] FIG13 is a sixth cross-sectional structural diagram of an exhaust duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0055] FIG14 is a second structural schematic diagram of the air inlet side of an exhaust duct assembly in an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure;

[0056] FIG15 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;

[0057] FIG16 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.

[0058] Explanation of Reference Numerals: 100, exhaust duct assembly; 1, duct housing; 11, duct sidewall; 111, first air inlet section; 112, second air inlet section; 12, circumferential baffle; 121, rotating hole; 122, folded edge; 13, air duct; 14, first air inlet; 15, second air inlet; 16, air inlet chamber; 17, filter chamber; 18, air outlet chamber; 2, first air guide; 21, first air guide plate; 211, first plate surface; 22, second air guide plate; 221, second plate surface; 23, side edge; 24, air outlet; 25, connecting plate; 3, second air guide; 31, third air guide plate; 311, third plate surface; 32, fourth air guide plate; 33, rotating shaft; 4, first fan; 5, second fan; 6, filter element; 200, cabinet body; 201, cabinet door; 2011, inner wall; 2012, exhaust port; 202, cabinet body; 300, battery pack; 400, power module. DETAILED DESCRIPTION

[0059] 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.

[0060] The present embodiment relates to an exhaust energy storage cabinet, which may be, for example, a battery energy storage cabinet. FIG1 is a schematic structural diagram of an exhaust energy storage cabinet provided by an exemplary embodiment of the present disclosure. As shown in FIG1 , the exhaust energy storage cabinet includes a cabinet body 200 and an exhaust duct assembly 100, and the cabinet body 200 is used to place a plurality of battery packs 300. The exhaust duct assembly 100 is fixed to the inner wall 2011 of the cabinet body 200. In other words, the exhaust duct assembly 100 may be arranged inside the cabinet body 200. In addition, the exhaust duct assembly 100 includes an air duct housing 1, a first air guide member 2, a first fan 4, and a second fan 5 extending along the height direction H of the cabinet body 200. As shown in FIG1 , the height direction H may, for example, be a direction from the top of the cabinet body 200 to the bottom of the cabinet body.

[0061] Figure 2 is a structural schematic diagram of the duct side of an exhaust duct assembly provided in an exemplary embodiment of the present disclosure, and Figure 3 is a structural schematic diagram of the air inlet side of an exhaust duct assembly provided in an exemplary embodiment of the present disclosure, wherein the duct side refers to the 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 air flow, and the duct side and the air inlet side are opposite to each other.

[0062] As shown in Figures 1 and 3, the air duct housing 1 includes an air duct sidewall 11 and a circumferential retaining wall 12. The air duct sidewall 11 is spaced apart from the inner wall 2011 of the cabinet 200. The circumferential retaining wall 12 surrounds the edge of the air duct sidewall 11 and is disposed between the air duct sidewall 11 and the inner wall 2011. Thus, the inner wall 2011 of the cabinet 200, the air duct sidewall 11, and the circumferential retaining wall 12 cooperate to form an air duct 13 for air flow, as shown in Figure 2. The air duct sidewall 11 defines a first air inlet 14 and a second air inlet 15 distributed along a height direction H. 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 sequentially along the height direction H. In other words, the second air inlet 15 is closer to the bottom of the cabinet 200 than the first air inlet 14.

[0063] The first fan 4 is used to draw 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 draw the gas inside the cabinet 200 into the air duct housing 1 through the second air inlet 15. In specific implementations, the fans (including the first fan 4 and the second fan 5) in the exhaust duct assembly 100 can periodically extract gas from the cabinet 200 or when the gas concentration in the cabinet 200 reaches a set threshold, and discharge the gas outside the cabinet 200 through the air duct 13 provided by the exhaust duct assembly 100, thereby achieving active exhaust of the energy storage cabinet.

[0064] As shown in Figures 1 and 2, the first air guide member 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 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. The first edge and the second edge are two opposite edges of the first air guide member 2 along the height direction.

[0065] The first air inlet 14 can be disposed near one end of the duct sidewall 11, and the second air inlet 15 can be adjacent to the first air inlet 14 and spaced a considerable distance from the end of the duct sidewall 11. Thus, after the duct sidewall 11 and the inner wall 2011 of the cabinet 200 cooperate to form the air duct 13, the air drawn into the duct 13 by the first fan 4 and the second fan 5 will flow in a direction from the first air inlet 14 to the second air inlet 15. That is, the air outlet direction F of the duct 13 is from the first air inlet 14 to the second air inlet 15, and when the 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.

[0066] In other words, the exhaust duct assembly can have two air inlets in sequence along the air outlet direction of its internal air duct, each air inlet corresponds 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 into the air duct by the upstream fan through the upstream air inlet from escaping from the downstream air inlet, thereby reducing the air intake interference between fans and improving exhaust efficiency.

[0067] As shown in FIG1 , the cabinet 200 includes a cabinet door 201, the inner wall of which faces the multiple battery packs 300, and the exhaust duct assembly 100 is fixed to the inner wall of the cabinet door 201. In one example, the cabinet 200 may further include a cabinet body 202, and the battery packs 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.

[0068] When the exhaust duct assembly 100 is positioned inside the cabinet door 201, it can be used as part of an air conditioning system to exhaust and dissipate heat from the battery pack 300. In this case, as shown in FIG1 , an exhaust port 2012 can be provided on the cabinet door 201. The exhaust port 2012 communicates with the space enclosed by the duct housing 1 and the inner wall 2011 of the cabinet body 200. It will be appreciated that the exhaust port 2012 is obscured in FIG1 and shown as a dotted line. In other examples, the exhaust duct assembly 100 can also be positioned within the cabinet body 202 and adjacent to the battery pack 300 (or power module 400); alternatively, the energy storage cabinet can include multiple exhaust duct assemblies 100, which can be positioned at different locations along the height of the cabinet body 200 in the energy storage cabinet to ventilate gases of different densities. Furthermore, as shown in FIG1 , the energy storage cabinet can also include a power module 400 housed within the cabinet body 202. The power module 400 can be used to control the charging and discharging of the battery pack 300.

[0069] In one example, as shown in Figures 2 and 3, 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 duct assembly is fixed to the cabinet 200, the air duct side of the exhaust 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 screws or other connecting parts, thereby closing the air duct 13 enclosed between the air duct side wall 11 and the circumferential retaining wall 12 through the inner wall 2011. The air duct housing 1 can be rectangular or circular as a whole, and this embodiment does not limit this.

[0070] It is understood that the first air guide 2 within the air duct housing 1 may only partially isolate the first air inlet 14 and the second air inlet 15, or may 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 a direction perpendicular to the inner wall 2011, such that the second end of the first air guide 2 is raised relative to the first end and suspended relative to the air duct sidewall 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, which can be parallel to the opening direction of the second air inlet 15.

[0071] 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 closed and connected to 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).

[0072] 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.

[0073] In a specific implementation, the extension length of the first air guide 2 in the air outlet direction of the air duct 13 can be smaller than the inner diameter of the second air inlet 15, so that the first air guide 2 can only cover a portion of the second air inlet 15; alternatively, the extension length of the first air guide 2 in the air outlet direction of the air duct 13 can be equal to or greater than the inner diameter of the second air inlet 15, so that the first air guide 2 can completely cover the second air inlet 15, thereby fully isolating the first air inlet 14 from the second air inlet 15. In other words, the first air guide 2 at least partially covers the second air inlet 15.

[0074] The first fan 4 can be arranged opposite the first air inlet 14 and used to exhaust air into the air duct 13 through the first air inlet 14. Similarly, the second fan 5 can be arranged opposite the second air inlet 15 and 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, thereby being independent of the air duct housing 1.

[0075] The structure of the first air guide member 2 will be described below.

[0076] As shown in conjunction with FIG1 and FIG4 , FIG5 or FIG6 , the first air guide 2 is disposed within the air duct housing 1, and the first air guide 2 does not extend beyond the folded edge 122 of the circumferential retaining wall 12 adapted to connect to the inner wall 2011 of the cabinet 200 in a direction perpendicular to the inner wall 2011. Thus, 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 opposing air duct sidewalls 11 and the inner wall 2011. In other words, the distance between the second edge of the first air guide 2, which is spaced apart from the air duct sidewall 11, and the air duct sidewall 11 is smaller than the distance between the air duct sidewall 11 and the inner wall 2011.

[0077] As shown in Figures 4, 5 and 6, since the first air 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 air 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 first air guide 2 toward the side of the second air inlet 15 along the wind outlet direction F, so that the first air 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 air guide 2 respectively, but also provide a guiding effect for the airflow entering the air duct through the two air inlets.

[0078] To reduce the resistance of the first air guide 2 to the second airflow in the outlet direction F, at least the portion of the first air guide 2 proximate the first air inlet 14 can be configured to be inclined along the outlet direction F, away from the duct sidewall 11, to provide a guiding effect on the second airflow. In one example, as shown in conjunction with Figures 1 and 4 , the first air guide 2 is a plate-shaped member, and the first air guide 2 is inclined along the height direction H (or the outlet direction F), away from the duct sidewall 11.

[0079] In other examples, as shown in FIG5 , the first deflector 2 includes a first deflector plate 21 and a second deflector plate 22 that are connected in a curved manner. The first edge of the first deflector 2 is the side of the first deflector plate 21 that is adjacent to the first air inlet 14 , and the other side of the first deflector plate 21 is connected to the second deflector plate 22 . The second deflector plate 22 at least partially covers the second air inlet 15 . In other words, the first deflector plate 21 is closer to the first air inlet 14 than the second deflector plate 22 , so that the first deflector plate 21 is upstream of the second deflector plate 22 along the air outlet direction F. Furthermore, the first deflector plate 21 is inclined in the height direction H (or the air outlet direction F) away from the duct sidewall 11 . In other words, the first deflector plate 21 can be inclined relative to the duct sidewall 11 , and the first deflector plate 21 can be inclined such that the further away from the first air inlet 14 the further away from the duct sidewall 11 the first deflector plate 21 is.

[0080] In one example, as shown in FIG5 , the second deflector 22 can be perpendicular to the opening direction L2 of the second air inlet 15, so that the second deflector 22 can be at the same height as the second edge of the first deflector 21 away from the first air inlet 14, without further reducing the flow channel space of the first airflow at the second deflector 22. Furthermore, the distance between the second deflector 22 and the air duct sidewall 11 is smaller than the distance between the air duct sidewall 11 and the inner wall 2011, so as to avoid affecting the assembly between the air duct housing 1 and the inner wall 2011.

[0081] 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 deflector 22 is perpendicular to the opening direction of the second air inlet 15. This can be understood as the two plate surfaces of the second deflector 22 facing and away from the second air inlet 15 are each perpendicular to the opening direction of the second air inlet 15. In this case, the second deflector 22 can be a flat plate with uniform thickness, and the two plate surfaces of the second deflector 22 facing and away from the air duct sidewall 11 are parallel to each other.

[0082] In another example, as shown in conjunction with FIG1 and FIG6 , the second deflector 22 is inclined along the height direction H (or the air outlet direction F) away from the duct sidewall 11. That is, the surfaces of the second deflector 22 facing and away from the second air inlet 15 can both be inclined relative to the duct sidewall 11, wherein the surface of the second deflector 22 facing the second air inlet 15 is inclined such that the surface is further away from the duct sidewall 11 as it moves away from the first air inlet 14, thereby guiding the second airflow flowing from the second deflector 22 toward the second air inlet 15. Similarly, the surface of the second deflector 22 facing away from the second air inlet 15 is also inclined such that the surface is further away from the duct sidewall 11 as it moves away from the first air inlet 14. When the second deflector 22 is a flat plate of uniform thickness, the surfaces of the second deflector 22 facing and away from the duct sidewall 11 are parallel to each other, and the angle between the surfaces of the second deflector 22 facing and away from the duct sidewall 11 is consistent with the angle between the surfaces of the second deflector 22 and the opening direction L2 of the second air inlet 15 provided on the duct sidewall 11.

[0083] Furthermore, as shown in FIG6 , when the second deflector 22 is tilted, the angle α1 between the first plate surface 211 of the first deflector 21 facing 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 deflector 22 facing away from the second air inlet 15 and the opening direction L2 of the second air inlet 15, so that the overall inclination of the first deflector 2 relative to the air duct sidewall 11 becomes increasingly gentle along the air outlet direction F. In this case, the first airflow flowing from the side of the first deflector 2 facing away from the second air inlet 15 can flow toward the air outlet end of the air duct 13 through the first deflector 21 and the second deflector 22 in sequence, thereby providing guidance for the first airflow along the air outlet direction F.

[0084] It is 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, thereby forming a plate-shaped component as shown in FIG4. However, 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.

[0085] In one example, the first guide plate 21 may be a flat plate with a uniform thickness, and the first guide plate 21 and the second guide plate 22 may each have the same thickness. 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.

[0086] As shown in Figure 7, the two opposing side edges 23 of the first flow guide 2 can be respectively connected to the circumferential retaining wall 12, thereby forming a flow channel space in cooperation with the air duct side wall 11 and the circumferential retaining wall 12. The second airflow generated by the second fan 5 enters the flow channel space through the second air inlet 15 and exits the flow channel space through the air outlet 24. Furthermore, the first edge of the first flow guide 2 connected between the two opposing side edges 23 can be continuously attached to and connected to the air duct side wall 11, thereby enclosing the remainder of the flow channel space except for the second air inlet 15 and the air outlet 24.

[0087] In other examples, only one side 23 of the first air guide 2 may be connected to the circumferential barrier wall 12, with the other side 23 separated from its corresponding circumferential barrier wall 12 by a gap. The width of the first air guide 2 may be smaller than the width of the air duct 13, thereby providing other air outlet gaps between the first air guide 2 and the air duct housing 1 in addition to the air outlet 24. In other words, at least one side 23 of the first air guide 2 is connected to the circumferential barrier 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, both sides of the first air guide 2 may each have a gap with the circumferential barrier wall 12, but the first air guide 2 is sufficient to partially or completely cover the second air inlet 15 along the width of the air duct 13.

[0088] Figures 8 and 9 respectively illustrate schematic front views of the exhaust duct assembly's air inlet and outlet sides. In Figure 9, the second air inlet 15 is shown in dashed lines, obscured by the first air guide 2. In conjunction with Figure 1 and Figures 7 and 8, the extension length of the first air guide 2 in the height direction H (or air outlet direction F) can be greater than or equal to the inner diameter of the second air inlet 15, such that the orthographic projection of the second air inlet 15 on a given plane lies within the orthographic projection of the first air guide 2 on the given plane, wherein the given plane is perpendicular to the opening direction of the second air inlet 15, such that the first air guide 2 completely covers the second air inlet 15.

[0089] 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.

[0090] The first air guide 2 can be welded to the circumferential retaining wall 12 of the air duct housing 1 via the side edge 23 to secure its position. In other examples, when the spacing between the first air inlet 14 and the second air inlet 15 is ample, as shown in Figures 4, 5, and 6, the first air guide 2 can further include a connecting plate 25. The connecting plate 25 is connected to the end of the first air guide 21 away from the second air guide 22 and abuts the air duct sidewall 11. Connectors such as bolts or screws can pass through the connecting plate 25 and the air duct sidewall 11 to secure the first air guide 2. In other examples, the first air guide 2 can be directly welded to the air duct sidewall 11.

[0091] The exhaust duct assembly provided in this embodiment can reduce the dual-fan vortex and turbulence by disposing a first flow guide 2 for isolating the first air inlet 14 and the second air inlet 15 within the duct housing 1 for forming the duct 13, thereby reducing the air intake interference between the first fan 4 and the second fan 5 and improving the exhaust efficiency. However, the first flow guide 2 may hinder the first airflow entering the duct 13 through the first air inlet 14 from flowing along the outlet direction F. In order to reduce the impact of the first flow guide 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 flow guide 3 configured to guide the airflow entering the duct housing 1 through the first air inlet 14, so as to improve the exhaust efficiency of the first fan 4.

[0092] The structure of the second air guide member 3 will be described below.

[0093] In one example, the exhaust duct assembly may include multiple second flow guides 3. Figures 7 and 10 illustrate an example in which the exhaust duct assembly includes three second flow guides 3. The multiple second flow guides 3 are located within the duct housing 1 and are arranged corresponding to the first air inlet 14 to guide the first airflow entering the duct housing 1 (air duct 13) through the first air inlet 14 so as to enable the first airflow to flow along the outlet direction F. For example, as shown in Figures 8 and 9, the orthographic projection of at least a portion of the second flow guide 3 on a 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 inlet direction of the first air inlet 14. In other examples, the exhaust duct assembly may also include only one second flow guide 3.

[0094] Any second deflector 3 may include a third deflector plate 31. In one example, as shown in Figures 10 and 11, the third deflector plate 31 is rotatably connected to the circumferential retaining wall 12. In a specific implementation, a rotation shaft 33 may be connected to the side of the third deflector plate 31. The circumferential retaining wall 12 is provided with a rotation hole 121. The rotation shaft 33 may partially extend into the rotation hole 121 and rotate within the rotation hole 121.

[0095] In other examples, in combination with Figures 1 and 7 and 10, 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 toward the air outlet end of the air duct 13 through the third guide plate 31.

[0096] As shown in Figure 12, when the third guide plate 31 is fixedly connected to the circumferential baffle 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 air duct side wall 11 becomes slower and slower. 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 in succession, 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 .

[0097] In the case where the exhaust duct assembly includes a plurality of second air guide members 3, some of the plurality of second air guide members 3 may be rotatably connected to the circumferential retaining wall 12, while another portion of the second air guide members 3 may be fixedly connected to the circumferential retaining wall 12. Furthermore, some of the plurality of second air guide members 3 may be plate-shaped members, thus including only the third air guide plate 31, while another portion of the second air guide members 3 may further include a fourth air guide plate 32, which is connected to the third air guide plate 31 in a bent manner, so that the second air guide members 3 may be approximately L-shaped or bucket-shaped.

[0098] In one example, as shown in Figure 12 , the fourth deflector 32 is connected to the end of the third deflector 31 near the air duct sidewall 11 , and the fourth deflector 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 deflector 32 and then guided toward the outlet end of the air duct 13 by the fourth deflector 32 . As shown in Figure 12 , the angle between the fourth deflector 32 and the third deflector 31 can be an obtuse angle.

[0099] 12 illustrates an example in which 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, the air duct sidewall 11 of the air duct housing 1 may be designed so that the opening direction L1 of the first air inlet 14 intersects the opening direction L2 of the second air inlet 15.

[0100] The structure of the air duct housing 1 will be described below.

[0101] As shown in Figures 13 and 14, the air duct sidewall 11 includes a first air inlet section 111 and a second air inlet section 112. The first air inlet 14 is located in the first air inlet section 111, and the second air inlet 15 is located in the second air inlet section 112. The first air inlet section 111 and the second air inlet section 112 are connected in a curved manner, and the end of the first air inlet section 111 away from the second air inlet section 112 is inclined toward 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 on the side of the air duct housing 1 where the air duct 13 is formed (the air duct side).

[0102] In one example, part of the duct side wall 11 of the air inlet section in the air duct housing 1 can be lifted toward the duct side to form a first air inlet section 111, while the remaining portion maintains 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 air outlet end of the air duct 13, thereby preventing the first airflow generated by the first fan 4 from directly blowing onto the mounting carrier such as the cabinet door 201, thereby reducing the air inlet flow resistance.

[0103] In addition, as shown in Figure 14, when the first air inlet 14 is inclined relative to the second air inlet 15, the first fan 4 can be set directly opposite the first air inlet 14, and the second fan 5 can be set directly opposite the second air inlet 15, so that the first fan 4 and the second fan 5 are also set relatively inclined.

[0104] As shown in Figures 1 and 15 , the air duct housing 1 may include an air inlet chamber 16, a filter chamber 17, and an air outlet chamber 18 arranged sequentially 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 described above may serve as the air duct sidewall 11 in 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 exhaust port 2012 provided on the cabinet 200 to discharge the airflow within 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.

[0105] As shown in FIG15 , the exhaust duct assembly may further include a filter element 6, which is located in the filter cavity 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 media 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.

[0106] In one example, the filter element 6 can utilize a labyrinth seal structure made of a material such as polyurethane, which creates a throttling effect on the gas through the gaps between the comb teeth, thereby providing a seal. For example, the filter element 6 can be formed with multiple smaller filter ducts, and the filter ducts within the filter element 6 can intersect with the air duct 13. Furthermore, as shown in Figures 2 and 16 , the filter element 6 can be higher than the first flow guide 2 in the depth direction of the air duct 13, so that the filter element 6 can protect the air outlet 24 as a whole.

[0107] The exhaust duct assembly provided by the embodiment of the present disclosure can reduce the double-fan vortex, reduce turbulence, and thereby 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 a second guide member 3 at the first air inlet 14, a guiding function 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 toward the air outlet end of the air duct 13, thereby reducing the air intake flow resistance and further improving the exhaust efficiency.

[0108] 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 of exhausting once every 1 minute, and the exhaust volume is not less than the volume of the prefabricated cabin.

[0109] 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 indicate orientations or positional relationships 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present application.

[0110] Unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" (if any) should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interactions between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0111] In addition, the terms "first" and "second" (if any) are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0112] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0113] In the description of this specification, reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application.

[0114] The above description is merely an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An exhaust energy storage cabinet, wherein: The exhaust energy storage cabinet comprises a cabinet body (200) and an exhaust duct assembly (100), wherein the cabinet body (200) is used to place a plurality of battery packs (300), the exhaust duct assembly (100) is fixed to an inner wall (2011) of the cabinet body (200), and the exhaust duct assembly (100) comprises an air duct housing (1) extending along a height direction (H) of the cabinet body (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 relative to each other and 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 air duct side wall (11) 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 air 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 air 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 air guide (2) and the air duct side wall (11) are spaced apart to form an air outlet (24); the first edge and the second edge are two opposite edges of the first air guide (2) along the height direction (H).

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

3. The energy storage cabinet according to claim 1, wherein: 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, wherein: The first guide member (2) comprises a first guide plate (21) and a second guide plate (22) 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 in the direction away from the air duct side wall (11) along the height direction (H); the second guide plate (22) at least partially covers the second air inlet (15).

5. The energy storage cabinet according to claim 4, wherein: 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, wherein: The second guide plate (22) is inclined in the direction away from the air duct side wall (11) along the height direction (H), 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, wherein: 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, wherein: At least one side edge (23) of the first flow guide (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 1, wherein: The exhaust duct assembly (100) further comprises at least one second flow guide (3), wherein the second flow guide (3) is configured to guide the airflow entering the 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, wherein: When the third guide plate (31) is fixedly connected to the circumferential retaining 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 the opening direction (L2) of the second air inlet (15).

11. The energy storage cabinet according to claim 10, wherein: 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 the opening direction (L1) of the first air inlet (14).

12. The energy storage cabinet according to any one of claims 1 to 11, wherein: 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, wherein: The exhaust air duct assembly (100) further includes 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) sequentially arranged 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 air outlet (2012) provided on the cabinet (200) for discharging the air flow in the air duct housing (1).

14. The energy storage cabinet according to any one of claims 1 to 11, wherein: 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 duct assembly (100) is fixed to the inner wall of the cabinet door (201).

15. The energy storage cabinet according to claim 14, wherein: 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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