CN116759693A

CN116759693A - Air cooling assembly and energy storage equipment with same

Info

Publication number: CN116759693A
Application number: CN202310661953.1A
Authority: CN
Inventors: 黄红珍; 滕志斌; 蔡辉
Original assignee: Nantong Zhongji Yuanneng Integrated Technology Co ltd; Nantong CIMC Special Transportation Equipment Manufacture Co Ltd
Current assignee: Nantong Zhongji Yuanneng Integrated Technology Co ltd; Nantong CIMC Special Transportation Equipment Manufacture Co Ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-09-15

Abstract

The application provides an air duct assembly and energy storage equipment with the same, wherein the air duct assembly comprises an air supply channel, an air supply channel and a guide plate, and the air supply channel is provided with an air outlet; the air supply channel is connected to the air outlet and extends along the direction of the air outlet, and the air distribution opening is arranged at the lower part of the air supply channel; the guide plate is located the air supply passageway, the guide plate has along the opposite first end of orientation and the second end of air outlet, first end is close to the air outlet than the second end, the second end is close to the cloth wind gap than first end at the orientation of cloth wind gap, the tangential direction of first end is on a parallel with the orientation of air outlet, tangential direction of second end is alternately in the tangential direction of first end, the guide plate that is located between first end and the second end has the smooth transitional surface towards the air outlet, the guide plate is used for shunting and guiding to cloth wind gap to the air current of air outlet output. The guide plate can guide flow, increase on-way resistance and even air flow.

Description

Air cooling assembly and energy storage equipment with same

Technical Field

The present application relates generally to the technical field of container structures, and more particularly to an air cooling assembly and an energy storage device having the same.

Background

The energy storage container is internally provided with a battery cluster. Since the battery clusters release a large amount of heat during charge and discharge, and the capacity and cycle life of the battery clusters are sensitive to temperature, heat dissipation of the battery clusters is required. In the related art, the air is blown through a simple straight air duct, and the air outlet of each air outlet is inconsistent, so that the heat dissipation of the battery is uneven, and the service life of the battery can be seriously influenced.

Accordingly, there is a need to provide an air cooling assembly and an energy storage device having the same, so as to at least partially solve the above-mentioned problems.

Disclosure of Invention

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the application is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above-described problems, a first aspect of the present application provides a duct assembly, comprising:

the air supply channel is provided with an air outlet;

the air supply channel is connected to the air outlet and extends along the direction of the air outlet, and an air distribution opening is formed in the lower part of the air supply channel; and

the air distribution device comprises an air supply channel, a guide plate, a first air distribution opening, a second air distribution opening, a first air distribution plate and a second air distribution plate, wherein the guide plate is located in the air supply channel and is provided with a first end and a second end which are opposite in direction along the air outlet, the first end is closer to the air outlet than the second end, the second end is closer to the air distribution opening than the first end, the tangential direction of the first end is parallel to the direction of the air outlet, the tangential direction of the second end is intersected with the tangential direction of the first end, the guide plate located between the first end and the second end is provided with a smooth transition surface facing the air outlet, and the guide plate is used for distributing air flow output by the air outlet and guiding the air distribution opening.

According to the air duct assembly of the first aspect of the application, the air flow is received through the air supply channel, the air is distributed through the air distribution openings through which the air is supplied, the air flow is split by the first end of the air flow guide plate through the air distribution openings arranged in the air supply channel, and the air flow is guided to the air distribution openings through the air flow guide plate, so that the purpose of air guiding is realized, and the uniformity of the air flow distribution along each air distribution opening is improved. The guide plate can guide the flow, increase the resistance along the way and even the air flow.

Optionally, the smooth transition surface is configured as a curved surface, and the curvature center of the curved surface is located at one side of the curved surface facing the air outlet;

the curved surface is provided with a head end and a tail end which are opposite along the direction of the air outlet, the head end of the curved surface is closer to the air outlet than the tail end, and the tangential direction of the head end of the curved surface is parallel to the direction of the air outlet.

Optionally, the curved surface comprises at least two arc segments sequentially arranged along the direction of the air outlet, and two adjacent arc segments are tangentially arranged with each other.

Optionally, a tangential direction of the second end of the deflector is perpendicular to a tangential direction of the first end.

Optionally, the air duct assembly includes at least two deflectors, and at least two deflectors are arranged at intervals along the direction of the air outlet.

Optionally, the baffle is vented to allow airflow through the baffle.

Optionally, the aperture ratio of the guide plate is 25% -75%.

Optionally, the aperture ratio of the deflector is greater than 50%.

Optionally, the opening ratio of each guide plate is reduced from the near to the far in the direction of the air outlet.

Optionally, the baffle further includes a first extension plate portion, where the first extension plate portion is connected to the head end of the curved surface, and the first extension plate portion extends along a tangential direction of the head end of the curved surface.

Optionally, the baffle further includes a second extension plate portion, the second extension plate portion is connected to the end of the curved surface, and the second extension plate portion is disposed in an extending manner along a tangential direction of the end of the curved surface.

Optionally, the first end of the deflector and the inner surface of the air supply channel facing away from the air distribution opening are arranged at intervals.

Optionally, the projected area of the baffle within the cross-section of the air supply channel is no more than 60% of the area of the cross-section of the air supply channel.

Optionally, the baffle is at least partially constructed as a soft elastic structure.

A second aspect of the present application provides an energy storage device comprising:

the box body comprises an equipment cabin and a battery cabin;

the battery clusters are arranged in the battery compartment and are arranged at intervals along the length direction of the box body, and cooling channels are formed between adjacent battery clusters;

according to the air duct assembly, the air supply channel comprises the air inlet and the air outlet, the air inlet is communicated to the equipment compartment, the air outlet is communicated to the energy storage compartment, the air outlet is arranged towards the battery compartment along the length direction of the box body, the air supply channel is positioned above the battery cluster and extends along the length direction of the box body, the air distribution opening is formed in the lower portion of the air supply channel, and the guide plate is arranged corresponding to the cooling channel; and

and the air conditioner is positioned in the equipment cabin so as to convey cooling airflow to the air inlet.

According to the energy storage device of the second aspect of the application, by applying the air duct assembly, the cold air flow can be distributed to the cooling channels along the way through the guide plate, so that the cooling of each battery cluster is realized. Meanwhile, the uniformity of cold air flow distribution can be improved, the maximum temperature difference among all battery clusters is reduced, and further the heat management efficiency is improved.

Optionally, the projection of the baffle on the corresponding cooling channel along the height direction of the box body at least partially covers the cooling channel.

Optionally, the second end of the flow guide plate is located between two adjacent battery clusters in the length direction of the box body.

Optionally, along the length direction of the box, the second end of the flow guide plate is closer to one of the two adjacent battery clusters, which is farther from the air outlet.

Optionally, the first end of the deflector is fixedly disposed relative to the case, and the second end of the deflector is movably disposed relative to the case along a length direction of the case.

Drawings

The following drawings of embodiments of the present application are included as part of the application. Embodiments of the present application and their description are shown in the drawings to explain the principles of the application. In the drawings of which there are shown,

FIG. 1 is a schematic diagram of an energy storage device according to a preferred embodiment of the present application;

FIG. 2 is a schematic illustration of a wind tunnel assembly of the energy storage device shown in FIG. 1;

FIG. 3 is a schematic view of the baffle shown in FIG. 1;

FIG. 4 is a schematic perspective view of the baffle shown in FIG. 3;

FIG. 5 is a schematic view of a baffle according to another preferred embodiment of the present application;

FIG. 6 is another schematic diagram of the energy storage device shown in FIG. 1; and

fig. 7 is a schematic cross-sectional view of a curved surface according to a preferred embodiment of the present application.

Reference numerals illustrate:

100: energy storage device 101: box body

101a: base 101b: side wall

101c: front end wall 101d: rear end wall

101e: top wall 110: first partition board

120: battery compartment 130: equipment cabin

140: the second separator 151: air supply channel

151a: air inlet 151b: air outlet

152: the air supply duct 152a: air distribution opening

160: deflector 160a: first end

160b: second end 160c: vent hole

161: curved surface 170: battery cluster

180: cooling channel 190: air conditioner

261: curved surface 262: first extension plate part

263: second extension plate portion D1: in the length direction

D2: height direction D3: direction of air flow

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art that embodiments of the application may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the embodiments of the application.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present application. It will be apparent that embodiments of the application may be practiced without limitation to the specific details that are set forth by those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application, as the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like are used herein for illustrative purposes only and are not limiting.

Ordinal numbers such as "first" and "second" cited in the present application are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

Hereinafter, specific embodiments of the present application will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the present application and not limit the present application.

The application provides an air duct assembly and energy storage equipment 100 with the same.

The duct assembly according to the present application will be described in detail with reference to fig. 1 to 7.

The duct assembly according to the present application may include a supply duct 151, a supply duct 152, and a baffle 160. The air supply passage 151 has an air outlet 151b. From which a cold gas stream can be output. The air supply channel 152 is connected to the air outlet 151b, and extends along the direction of the air outlet 151b. The air supply passage 152 is used for conveying the cold air flow along the direction of the air outlet 151b. An air distribution port 152a is provided at the lower portion of the air supply duct 152. Air is distributed to the region to be cooled through the air distribution openings 152a. The baffle 160 is located in the air supply duct 152. The baffle 160 has oppositely facing first and second ends 160a, 160b along the air outlet 151b. The first end 160a is closer to the air outlet 151b than the second end 160b. The second end 160b is oriented closer to the cloth port 152a than the first end 160a at the cloth port 152a. The tangential direction of the first end 160a is parallel to the orientation of the air outlet 151b. The first end 160a may be, for example, opposite to the air outlet 151b. The tangential direction of the second end 160b intersects the tangential direction of the first end 160 a. The intersection here may be, for example, an intersection. The baffle 160 between the first end 160a and the second end 160b has a smooth transition surface towards the air outlet 151b. The smooth transition surface is beneficial to reducing the loss of wind power. The deflector 160 is used for dividing the airflow output from the air outlet 151b and guiding the airflow to the air distribution opening 152a.

According to the air duct assembly, the air flow is received through the air supply channel 151, the air is distributed through the air distribution openings 152a through which the air is supplied, the air flow is split by the first end 160a of the air guide plate 160 by arranging the air guide plate 160 in the air supply channel 152, and the air is guided to the air distribution openings 152a through the air guide plate 160, so that the air guide purpose is realized, and the uniformity of the air flow distribution along each air distribution opening 152a is improved. The baffle 160 herein may act to guide the flow, increase the resistance along the way, and even the flow.

For example, the smooth transition surface may be configured as a curved surface 161. The curvature center of the curved surface 161 is located at a side of the curved surface 161 facing the air outlet 151b. The curved surface 161 has opposite facing head and tail ends along the air outlet 151b. The head end of the curved surface 161 is closer to the air outlet 151b than the tail end. The tangential direction of the head end of the curved surface 161 is parallel to the orientation of the air outlet 151b. Namely, the head end of the curved surface 161 faces the air outlet 151b, so that resistance to air flow is reduced, and better diversion of the air flow by the first end 160a of the deflector 160 is ensured.

Further, the curved surface 161 may include at least two circular arc segments sequentially arranged along the direction of the air outlet 151b. Adjacent two arc segments are arranged tangentially to each other. It is understood here that the second derivative at the junction of two adjacent circular segments is zero.

Illustratively, the curved surface 161 includes three circular arc segments (as shown in fig. 7). The three arc sections are respectively positioned on the three circles. The centers of the three circles are different and the radii are different.

Alternatively, the tangential direction of the second end 160b of the baffle 160 is perpendicular to the tangential direction of the first end 160 a. This achieves a 90 degree transition of the direction of the air flow D3.

For example, the air duct assembly may include at least two baffles 160. At least two baffles 160 are disposed at intervals along the direction of the air outlet 151b. The guide plates 160 are respectively disposed in one-to-one correspondence with the air distribution openings 152a, so as to guide the air flow in the air supply channel 152 to the air distribution openings 152a sequentially.

For example, the baffle 160 is provided with a vent 160c to allow airflow through the baffle 160. During the flow guiding process of the air guiding plate 160 to the air distributing opening 152a, part of the air can pass through the air hole 160c to be continuously conveyed to the next position. The baffle 160 serves to drain and increase resistance along the way. The opening ratio of the baffle 160 determines the amount of increasing resistance along the way, and therefore the required increasing resistance along the way is determined according to the specific pressure distribution in the air supply duct 152, and thus the opening ratio is determined. The uneven flow of air from the air outlet 151b is caused by uneven pressure distribution in the air supply passage 152, and the flow guide plate 160 is added to appropriately increase the on-way resistance and to uniformly distribute the pressure in the air supply passage 152, thereby improving the uniformity of the air flow distribution.

For example, the aperture ratio of the baffle 160 is between 25% and 75%.

Preferably, the aperture ratio of the baffle 160 is greater than 50%.

Further, the opening ratio of each baffle 160 decreases from the near to the far in the direction of the air outlet 151b. Thus, the resistance of the air flow can be gradually increased from the near to the far along the way, and the air flow pressure is further increased.

In another example of the application shown in fig. 5, the baffle 160 may further include a first extension plate portion 262. The first extension plate portion 262 is connected to a head end of the curved surface 261. And the first extension plate 262 extends along a tangential direction of the head end of the curved surface 261. By adding the first extension plate 262, the first end 160a can be closer to the air outlet 151b, thereby playing a role of diversion in advance.

Further, the baffle 160 may further include a second extension plate portion 263. The second extension plate portion 263 is connected to the end of the curved surface 261. And the second extension plate portion 263 is extended in a tangential direction of the end of the curved surface 161. This is advantageous in that the accuracy of the flow guiding of the air flow by the guide plate 160 is improved, so that the air flow at the end of the guide plate 160 is closer to the area to be cooled, thereby improving the heat exchange efficiency.

For example, the first end 160a of the baffle 160 is spaced apart from an inner surface of the air supply duct 152 facing away from the air distribution opening 152a. This allows the air flow to pass through the gap between the baffle 160 and the inner surface of the air supply channel 152 so that the air flow can be split and directed by the baffle 160 downstream in the air flow direction.

Further, the projected area of the baffle 160 within the cross-section of the air-supply duct 152 does not exceed 60% of the cross-sectional area of the air-supply duct 152.

Alternatively, the first end 160a of the baffle 160 furthest from the air outlet 151b is connected to the inner surface of the air supply duct 152 in the direction of the air outlet 151b.

For example, the baffle 160 is at least partially constructed in a soft, resilient structure. This may cause the baffle 160 to at least partially deform and move when subjected to the pressure of the airflow. To ensure uniformity of the diversion of the baffle 160, the first end 160a of the baffle 160 may be fixedly disposed. The remaining portion of the baffle 160 may be adaptively deformed and moved according to the magnitude of wind.

The present application also provides an energy storage device 100. The energy storage device 100 may include a housing 101, a battery pack 170, an air duct assembly as described above, and an air conditioner 190. The case 101 may include an equipment compartment 130 and a battery compartment 120. The battery clusters 170 are disposed in the battery compartment 120 at intervals along the longitudinal direction D1 of the case 101. Cooling channels 180 are formed between adjacent battery clusters 170. The air supply channel 151 includes an air inlet 151a and an air outlet 151b. The air inlet 151a communicates with the equipment compartment 130. The air outlet 151b communicates with the energy storage compartment. The air outlet 151b is arranged toward the battery compartment 120 along the length direction D1 of the case 101. The air blowing duct 152 is located above the battery pack 170 and extends in the longitudinal direction D1 of the casing 101. The lower portion of the air supply duct 152 is provided with an air distribution opening 152a. The baffle 160 is disposed corresponding to the cooling passage 180. An air conditioner 190 is located in the equipment compartment 130 to deliver a cooling air flow to the air intake 151 a.

According to the energy storage device 100 of the present application, by applying the above-described air duct assembly, the cooling of each battery cluster 170 can be achieved by distributing the cool air flow to the cooling channels 180 along the way through the baffle 160. And meanwhile, the uniformity of cold air flow distribution can be improved, the maximum temperature difference among the battery clusters 170 is reduced, and the heat management efficiency is further improved.

For example, the projection of the baffle 160 on the corresponding cooling channel 180 in the height direction D2 of the case 101 at least partially covers the cooling channel 180. This may allow the airflow to eventually be directed into the cooling channel 180.

For example, in the longitudinal direction D1 of the case 101, the second end 160b of the deflector 160 is located between two adjacent clusters 170 to deflect the air flow between the two adjacent clusters 170.

Optionally, along the length direction D1 of the case 101, the second end 160b of the baffle 160 is closer to one of the two adjacent battery clusters 170 that is farther from the air outlet 151b. This is advantageous in that the air quantity in the cooling passage 180 is increased, thereby improving the cooling effect.

For example, the first end 160a of the baffle 160 is fixedly disposed relative to the housing 101. The second end 160b of the baffle 160 is movably disposed with respect to the casing 101 along the length direction D1 of the casing 101. This enables the lower portion of the baffle 160 to adaptively adjust the position of the second end 160b of the baffle 160 according to the amount of wind or the magnitude of wind, so that the flow guiding range and direction of the baffle 160 can be adaptively adjusted.

Illustratively, the interior of the case 101 is provided with a first partition 110 and a second partition 140. The first partition 110 is vertically disposed. The top end of the first partition 110 is spaced apart from the inner top of the case 101. The first partition 110 partitions the internal space of the case 101 into a battery compartment 120 and an equipment compartment 130. The second separator 140 is horizontally disposed in the battery compartment 120. And one end of the second separator 140 is connected to the top end of the first separator 110. An air supply passage 151 is formed between the second partition 140 and the inner top of the battery compartment 120. The second separator 140 is positioned above the battery cluster 170.

The cabinet 101 may include a base 101a, side walls 101b, a front end wall 101c, a rear end wall 101d, and a top wall 101e. The base 101a is located below the top wall 101e. The side wall 101b, front end wall 101c, rear end wall 101d are connected between the base 101a and top wall 101e. The side walls 101b are located at both ends of the base 101a in the width direction. The front end wall 101c is located at the front end portion of the base 101 a. The rear end wall 101d is located at the rear end of the base 101 a. An equipment compartment 130 is formed between the first bulkhead 110 and the front end wall 101 c. An air supply passage 151 is formed between the second partition 140 and the top wall 101e. The junction between the upper portion of rear end wall 101d and top wall 101e may be configured as a radiused transition surface to allow backflow of the air flow and reduce air flow losses.

The application relates to a container energy storage air-cooling flow equalizing structure, namely energy storage equipment 100. The equipment bay 130 and the air conditioner 190 described above together form an air conditioning unit. The air conditioning case may provide a cool air flow for the air supply passage 151. The cold air flow distributes the flow rate to each cooling channel 180 from top to bottom along the flow direction in the air supply channel 151, and the deflector 160 has streamline flow guiding capability, so that the flow rate of the cold air flow in each cooling channel 180 along the way is almost equal. In the illustrated example, the baffle 160 has three smooth arcuate surfaces, the second derivative of the arc at the junction of the three arcuate surfaces being zero, i.e., smooth transition. The baffle 160 also has a porous structure with surface pores staggered to have a porosity greater than 50%, so that a portion of the air flow can pass through the apertures into the next layer of cooling channels 180 while turning.

The application is suitable for the air-cooled thermal management scheme of the energy storage system, can improve the cooling uniformity of each battery cluster 170 in a large space, and reduces the maximum temperature difference among the battery clusters 170; the air supply device is particularly suitable for air supply of the energy storage system in the compact space of the container, improves the air supply uniformity, further improves the air supply temperature, and saves the electric energy consumption of the thermal control system.

According to the air duct assembly and the energy storage device 100 with the same, the air flow distribution uniformity along the air flow can be effectively improved by additionally arranging the guide plate 160 based on the distribution rule of the cold air flow in the air supply channel 151. The baffle 160 has a plurality of, e.g., three, smooth transition surfaces. The baffle 160 is deflected 90 ° from the first end 160a to the second end 160b. The baffle 160 has an open cell structure with an open cell ratio of greater than 50%. The baffle 160 may be disposed in plurality above a single cooling channel 180 in the direction of travel for uniform flow guiding.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the application. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present application has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the application to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the application, which variations and modifications are within the scope of the application as claimed.

Claims

1. An air duct assembly, the air duct assembly comprising:

the air supply channel is provided with an air outlet;

2. The duct assembly of claim 1, wherein the duct assembly comprises a housing,

the smooth transition surface is configured as a curved surface, and the curvature center of the curved surface is positioned at one side of the curved surface facing the air outlet;

3. The duct assembly of claim 2, wherein the duct assembly comprises,

the curved surface comprises at least two arc sections which are sequentially arranged along the direction of the air outlet, and two adjacent arc sections are tangentially arranged with each other.

4. The duct assembly of claim 1, wherein the duct assembly comprises a housing,

the tangential direction of the second end of the deflector is perpendicular to the tangential direction of the first end.

5. The air chute assembly as recited in any one of claims 1-4, wherein,

the air duct component comprises at least two guide plates, and the at least two guide plates are arranged along the direction of the air outlet at intervals.

6. The air chute assembly as recited in any one of claims 1-4, wherein,

the baffle is provided with ventilation holes to allow air flow through the baffle.

7. The duct assembly of claim 6, wherein the duct assembly comprises,

the aperture ratio of the guide plate is 25% -75%.

8. The duct assembly of claim 7, wherein the duct assembly comprises,

the aperture ratio of the guide plate is more than 50%.

9. The duct assembly of claim 6, wherein the duct assembly comprises,

the opening ratio of each guide plate is reduced from the near to the far in the direction of the air outlet.

10. The duct assembly of claim 2, wherein the duct assembly comprises,

the guide plate further comprises a first extending plate portion, the first extending plate portion is connected to the head end of the curved surface, and the first extending plate portion extends in the tangential direction of the head end of the curved surface.

11. The duct assembly of claim 2, wherein the duct assembly comprises,

the guide plate further comprises a second extending plate part, the second extending plate part is connected to the tail end of the curved surface, and the second extending plate part extends along the tangential direction of the tail end of the curved surface.

12. The air chute assembly as recited in any one of claims 1-4, wherein,

the first end of the guide plate and the inner surface of the air supply channel, which is far away from the air distribution opening, are arranged at intervals.

13. The duct assembly of claim 6, wherein the duct assembly comprises,

the projected area of the guide plate in the cross section of the air supply channel is not more than 60% of the area of the cross section of the air supply channel.

14. The air chute assembly according to claim 1, wherein the baffle is at least partially constructed in a soft, resilient structure.

15. An energy storage device, the energy storage device comprising:

the box body comprises an equipment cabin and a battery cabin;

the air duct assembly of any one of claims 1 to 14, the air supply channel comprising an air inlet and an air outlet, the air inlet being connected to the equipment compartment, the air outlet being connected to the energy storage compartment, the air outlet being arranged along a length direction of the box toward the battery compartment, the air supply channel being located above the battery cluster and extending along the length direction of the box, the air supply channel having a lower portion provided with an air distribution opening, the deflector being arranged in correspondence with the cooling channel; and

16. The energy storage device of claim 15, wherein the energy storage device comprises,

the projection of the guide plate on the corresponding cooling channel along the height direction of the box body at least partially covers the cooling channel.

17. The energy storage device of claim 15, wherein the energy storage device comprises,

and the second end of the guide plate is positioned between two adjacent battery clusters in the length direction of the box body.

18. The energy storage device of claim 17, wherein the energy storage device comprises,

along the length direction of the box body, the second end of the guide plate is closer to one of the two adjacent battery clusters, which is farther from the air outlet.

19. The energy storage device of claim 15, wherein the energy storage device comprises,

the first end of the guide plate is fixedly arranged relative to the box body, and the second end of the guide plate is movably arranged relative to the box body along the length direction of the box body.