Air guide hood and air-cooled energy storage device

Abstract

The present application relates to an air guide hood and an air-cooled energy storage device. The air guide hood comprises an air hood cavity. An inner surface of the air hood cavity comprises an air intake end face, an air-blocking end face and an air output end face, wherein the air intake end face is arranged opposite the air-blocking end face, and is used for allowing an air intake airflow to flow in; the air-blocking end face is used for impacting the air intake airflow to form a diffused airflow; and the air output end face is used for allowing the diffused airflow to flow out. The inner surface of the air hood cavity further comprises flow guide end faces located at the side of the air intake end face and the air-blocking end face, wherein a spoiler is provided on at least one flow guide end face; and the spoiler does not block the air intake airflow from flowing between the air intake end face and the air-blocking end face, and the spoiler can block the diffused airflow from flowing along the flow guide end face. The air guide hood can solve or ameliorate the problems of an air guide hood easily generating a vortex and the air output of the air guide hood being uneven, thereby improving the cooling effect for a battery cluster.

Description

Air guide cover and air-cooled energy storage device Technical Field

[0001] The present application relates to the field of new energy technology, and in particular to an air guide hood and an air-cooled energy storage device. Background Art

[0002] An air-cooled energy storage device usually includes a battery cluster and an air-cooling unit and an air guide hood provided on the battery cluster. The battery cluster has an air inlet side and a cold air channel, and the air inlet of the cold air channel is located on the air inlet side. The air guide hood is provided on the air inlet side, and is enclosed with the air inlet side to form an air inlet space, and the air inlet space is connected to the air supply port of the air-cooling unit and the air inlet of the cold air channel. The cooling air generated by the air-cooling unit enters the cold air channel through the air supply port and the air inlet space, cools the battery cluster, and then enters the air-cooling unit from the return air port of the air-cooling unit to form cooling air again, so as to continuously cool the battery cluster. However, the air guide hood of the related art has the problem of easily generating eddy currents and uneven air outlet, resulting in limited cooling effect of the battery cluster.

[0003] Application Contents

[0004] Based on this, it is necessary to provide an air guide cover to address the above problems, so as to solve or improve the problem that the air guide cover is prone to generating vortices and the air outlet of the air guide cover is uneven, thereby improving the cooling effect of the battery cluster.

[0005] An air guide cover includes an air guide cover cavity;

[0006] The inner surface of the air hood cavity includes an air inlet end face, a wind shield end face, and an air outlet end face; the air inlet end face is arranged opposite to the wind shield end face, the air inlet end face is used for allowing the incoming air flow to flow in, the wind shield end face is used for impacting the incoming air flow to form a diffused air flow, and the air outlet end face is used for allowing the diffused air flow to flow out;

[0007] The inner surface of the wind shield cavity further includes a drainage end surface located on the sides of the air inlet end surface and the wind shield end surface, and at least one of the drainage end surfaces is provided with a spoiler;

[0008] The spoiler does not block the flow of the incoming airflow between the air inlet end surface and the wind shielding end surface, and the spoiler can block the diffusion airflow from flowing along the guide end surface.

[0009] In one embodiment, the distance between the air inlet end surface and the wind shielding end surface is L, and the distance between the spoiler and the wind shielding end surface is 1 / 3L-2 / 3L.

[0010] In one embodiment, the inner surface of the wind hood cavity also includes a windward end face arranged opposite to the wind outlet end face, and an air flow channel is formed between the windward end face and the wind outlet end face. The air flow channel is used for the incoming air flow to pass through, and along the flow direction of the incoming air flow, the distance between the windward end face and the wind outlet end face gradually decreases.

[0011] In one embodiment, the air outlet end surface is provided with an air outlet that can extend along the flow direction of the inlet air flow.

[0012] In one embodiment, the height of the air inlet end surface is H1, the height of the wind shielding end surface is H2, and H1 and H2 satisfy: 1 / 5H1<H2<3 / 5H1.

[0013] In one embodiment, an air outlet is provided on the air outlet end surface, and an end of the spoiler away from the air outlet is connected to the windward end surface.

[0014] In one embodiment, the wind hood cavity includes a hollow hood tube and an inclined plate, the hollow hood tube has a hood opening and an inclined opening arranged opposite to each other, the inclined plate is arranged at the inclined opening, the air inlet end face, the wind shielding end face and the drainage end face are all located on the hollow hood tube, and the windward end face is located on the inclined plate.

[0015] In one embodiment, the end surface of the spoiler away from the inclined plate is flush with the end surface of the hood opening.

[0016] In one embodiment, the hollow cover tube includes an air inlet side and a windshield side arranged opposite to each other, one side of the air inlet side and the windshield side has a first drainage side, and the other side has a second drainage side, the air inlet end face is located on the air inlet side, the windshield end face is located on the windshield side, and the first drainage side and the second drainage side respectively have a drainage end face.

[0017] In one embodiment, the mask opening is a planar opening.

[0018] In one embodiment, the air inlet side, the first flow guiding side, the wind shielding side and the second flow guiding side are connected in sequence.

[0019] In one embodiment, an air inlet is provided on the air inlet end surface, and the air inlet passes through an end of the air inlet side away from the inclined plate.

[0020] The present application also provides an air-cooled energy storage device, comprising:

[0021] A battery cluster having an air inlet side and a cold air channel, wherein an air inlet of the cold air channel is located on the air inlet side;

[0022] an air cooling unit, provided on the battery cluster, the air cooling unit having an air supply port; and

[0023] The above-mentioned air guide cover is arranged on the air inlet side, the air inlet end surface of the air guide cover is connected to the air supply port of the air cooling unit, and the air outlet end surface of the air guide cover is connected to the air inlet of the cold air channel.

[0024] In one embodiment, there are multiple cold air channels, and the multiple cold air channels are arranged at intervals along the arrangement direction of both sides of the air inlet end surface and the wind shielding end surface.

[0025] In one embodiment, in the arrangement direction on both sides of the air inlet end surface and the wind shielding end surface, the width of the spoiler is S1, the width of the cold air channel at the end is S2, and S1 and S2 satisfy: 1 / 2S2<S1<4 / 5S2.

[0026] In one embodiment, the widths of the plurality of cold air channels are the same.

[0027] In one embodiment, the battery cluster includes a box body and a battery box array, the air inlet side and the cold air channel are located on the box body, the battery box array is arranged in the box body, the battery box array includes multiple battery boxes, and the multiple battery boxes are arranged in an array. Each vertical row of battery boxes is located between two adjacent cold air channels, and the air cooling unit is arranged on the box body.

[0028] In one embodiment, the battery box array has an air outlet side, the battery box has a heat dissipation channel, the heat dissipation channel has a heat dissipation inlet connected to the cold air channel and a heat dissipation outlet located on the air outlet side, and the air cooling unit also has a return air outlet, the return air outlet is located on the air outlet side and connected to the heat dissipation outlet.

[0029] In one embodiment, the box body includes a connected main frame and an installation frame, the air inlet side and the cold air channel are located on the main frame, the battery box array is located in the main frame, and the air outlet side faces the installation frame, one side of the installation frame protrudes beyond the air inlet side, the air cooling unit is arranged on the installation frame, and the air supply port is located on the part of the installation frame protruding beyond the main frame.

[0030] In one embodiment, the main body frame and the installation frame both have an open side in the circumferential direction, and the open side of the main body frame and the open side of the installation frame are sealed and enclosed to form the box body.

[0031] When the above-mentioned wind guide cover is working, the incoming air flow enters the air cover cavity from the air inlet end face and flows to the wind shield end face. The spoiler does not block the flow of the incoming air flow between the air inlet end face and the wind shield end face. After the incoming air flow impacts the wind shield end face to form a diffuse air flow, the spoiler can block the diffuse air flow from flowing along the guide end face. In this way, the spoiler can divide the air flow close to the guide end face and to be discharged from the air outlet end face into two parts, a part close to the air inlet end face and a part close to the wind shield end face (when the air inlet end face and the wind shield end face are located in the front-to-back direction, That is, the front and back parts), so that the airflow close to the guide end face and about to be discharged from the air outlet end face is reasonably distributed in the air hood cavity, and the airflow close to the guide end face and about to be discharged from the air outlet end face is prevented from being discharged along the end close to the air inlet end face. This solves the problem that the airflow close to the guide end face and about to be discharged from the air outlet end face has a large air volume at the end close to the air inlet end face and a small air volume at the end close to the wind shield end face. It can not only avoid the airflow from generating vortexes in the above-mentioned air guide cover, but also make the air outlet of the air outlet end face of the above-mentioned air guide cover more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] FIG1 is a schematic structural diagram of an air-cooled energy storage device in one embodiment of the present application;

[0034] FIG2 is an exploded view of the air-cooled energy storage device shown in FIG1 from one perspective;

[0035] FIG3 is a schematic diagram of the cooling air flow trajectory of the air-cooled energy storage device shown in FIG1 ;

[0036] FIG4 is an exploded view of the air-cooled energy storage device shown in FIG1 from another perspective;

[0037] FIG5 is a partial schematic diagram of the air-cooled energy storage device shown in FIG1 ;

[0038] FIG6 is a side view of the air-cooled energy storage device shown in FIG1 ;

[0039] FIG7 is another partial schematic diagram of the air-cooled energy storage device shown in FIG1 ;

[0040] FIG8 is a schematic structural diagram of a battery box of the air-cooled energy storage device shown in FIG1 ;

[0041] FIG9 is an exploded view of the battery box shown in FIG8 ;

[0042] FIG10 is a flow field simulation of an air-cooled energy storage device in the related art, wherein the lines in the figure represent the vector diagram of the cooling air, and the density of the lines represents the air volume;

[0043] FIG11 is another flow field simulation of an air-cooled energy storage device in the related art, wherein the lines in the figure represent the vector diagram of the cooling wind, and the density of the lines represents the air volume. DETAILED DESCRIPTION

[0044] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that the terms "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 on the present application.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0047] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0048] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0050] As shown in FIG1 , the air-cooled energy storage device 10 in the preferred embodiment of the present application includes a battery cluster 10 a , an air-cooling unit 10 b and an air guide cover 10 c .

[0051] 2 and 3 , the battery cluster 10 a has an air inlet side 202 and a cold air duct 204 . An air inlet 204 a of the cold air duct 204 is located on the air inlet side 202 .

[0052] Specifically, in this embodiment, the battery cluster 10a includes a housing 200 and a cell box array 300 disposed within the housing 200. The cell box array 300 has an air outlet side 300a. The battery box array 300 includes a plurality of cell boxes 310. The cell boxes 310 are arranged in an array. Each vertical row of cell boxes 310 is located between two adjacent cold air ducts 204. The cell boxes 310 have heat dissipation channels 312. The heat dissipation channels 312 have a heat dissipation inlet 312a connected to the cold air duct 204 and a heat dissipation outlet 312b located on the air outlet side 300a.

[0053] Specifically, in this embodiment, the battery box array 300 is mounted within the housing 200 via a bracket 400. This greatly facilitates installation of the battery box array 300 within the housing 200. It will be appreciated that in other embodiments, when the housing 200 itself is capable of mounting the battery box array 300, the bracket 400 may be omitted.

[0054] The air-cooling unit 10b is provided on the battery cluster 10a. Specifically, the air-cooling unit 10b is provided on the housing 200 of the battery cluster 10a. The air-cooling unit 10b has an air supply port 500 and an air return port 600. The air return port 600 of the air-cooling unit 10b is located on the air outlet side 300a of the battery box array 300 and is connected to the heat dissipation outlet 312b. Specifically, in this embodiment, the air-cooling unit 10b is an air-cooled air conditioner. This makes it very convenient to circulate and generate cold air. It will be understood that in other embodiments, the specific form of the air-cooling unit 10b can be set according to actual needs.

[0055] The air guide cover 10c is disposed on the air inlet side 202 and encloses the air inlet side 202 to form an air inlet space. The air inlet space connects the air supply port 500 of the air-cooling unit 10b and the air inlet 204a of the cold air duct 204.

[0056] As shown in Figures 2 and 3, when the air-cooled energy storage device 10 is in operation, the cooling air generated by the air-cooling unit 10b flows into the air guide 10c through the air supply port 500, and then enters the cold air duct 204 of the battery cluster 10a. The cooling air entering the cold air duct 204 can enter the heat dissipation channel 312 through the heat dissipation inlet 312a of the heat dissipation channel 312 of the battery box 310 to dissipate heat from the battery cells in the battery box 310. After heat exchange with the battery cells, the cooling air is discharged from the heat dissipation outlet 312b of the heat dissipation channel 312 and returns to the air-cooling unit 10b through the return air port 600 of the air-cooling unit 10b to form cooling air again. That is, the air cooling unit 10b, the air guide cover 10c and the battery cluster 10a form a closed cavity, and the cold air blown out by the air cooling unit 10b enters each battery cell box 310 in the battery cluster 10a through the air duct 202 and the heat dissipation air duct 312. The cold air cools the battery cells in the battery cell box 310 and is discharged from the heat dissipation outlet 312b on the battery cell box 310. Then, the cold air enters the air cooling unit 10b through the return air port 600 of the air cooling unit 10b for heat exchange. The cooled cold air enters the battery cluster 10a again to cool the battery cells, and the cycle repeats.

[0057] As shown in FIG4 , the air guide hood 10c in a preferred embodiment of the present application includes an air guide hood cavity 700. The inner surface of the air guide hood cavity 700 includes an air inlet end face 702, a wind shield end face 704, and an air outlet end face 706. The air inlet end face 702 and the wind shield end face 704 are arranged opposite to each other. The air inlet end face 702 is used for allowing the incoming air flow to flow in. Specifically, in this embodiment, an air inlet 700a for the incoming air flow to flow in is provided on the air inlet end face 702. The wind shield end face 704 is used to impact the incoming air flow to form a diffused air flow. The air outlet end face 706 is used for allowing the diffused air flow to flow out.

[0058] The inner surface of the air hood cavity 700 also includes a guide end surface 708 located to the sides of the air inlet end surface 702 and the windshield end surface 704. In this embodiment, there are two guide end surfaces 708, which are arranged opposite each other. At least one of the guide end surfaces 708 is provided with a spoiler 800. The spoiler 800 does not block the flow of the incoming air between the air inlet end surface 702 and the windshield end surface 704, and the spoiler 800 can block the diffusion air flow from flowing along the guide end surface 708. In other words, when the incoming air flows from the air inlet end surface 702 to the windshield end surface 704, the spoiler 800 does not block the flow of the incoming air between the air inlet end surface 702 and the windshield end surface 704. However, after the incoming air impacts the windshield end surface 704 to form a diffusion air flow, the spoiler 800 can block the diffusion air flow from flowing along the guide end surface 708.

[0059] When the above-mentioned wind guide cover 10c is working, the incoming air flow enters the wind cover cavity 700 from the air inlet end face 702 and flows to the wind shield end face 704. The spoiler 800 does not block the flow of the incoming air flow between the air inlet end face 702 and the wind shield end face 704. After the incoming air flow is impacted by the wind shield end face 704 to form a diffuse air flow, the spoiler 800 can block the diffuse air flow from flowing along the guide end face 708. In this way, the spoiler 800 can divide the air flow close to the guide end face 708 and to be discharged from the air outlet end face 706 into two parts, one part close to the air inlet end face 702 and the other part close to the wind shield end face 704 (when the air inlet end face 702 and the wind shield end face 704 are located in the front The airflow near the guide end face 708 and about to be discharged from the air outlet end face 706 is reasonably distributed in the air hood cavity 700, preventing the airflow near the guide end face 708 and about to be discharged from the air outlet end face 706 from being discharged along the end close to the air inlet end face 702. This solves the problem that the airflow near the guide end face 708 and about to be discharged from the air outlet end face 706 has a large air volume at the end close to the air inlet end face 702 and a small air volume at the end close to the wind shield end face 704. It can not only avoid the airflow from generating vortexes in the above-mentioned air guide cover 10c, but also make the air outlet of the air outlet end face 706 of the above-mentioned air guide cover 10c more uniform.

[0060] In this embodiment, the air scoop 10c is used in the air-cooled energy storage device 10. The air scoop 700 is positioned on the air inlet side 202. The air inlet end surface 702 of the air scoop 700 communicates with the air supply port 500 of the air-cooling unit 10b. The air outlet end surface 706 of the air scoop 700 communicates with the air inlet 204a of the cold air duct 204. It will be appreciated that in other embodiments, the air scoop 10c is not limited to use in the air-cooled energy storage device 10, but can also be used in various other devices requiring air guidance.

[0061] The above-mentioned air guide cover 10c is applied to the air-cooled energy storage device 10, and after the cooling air generated by the air-cooling unit 10b flows into the air guide cover 10c through the air supply port 500, since the guide end face 708 is provided with a spoiler 800, the spoiler 800 can divide the cold air channel 204 (the side cold air channel 204) close to the guide end face 708 into two parts, a part close to the air inlet end face 702 and a part close to the wind shield end face 704 (when the air inlet end face 702 and the wind shield end face 704 are located in the front and rear directions, they are the front and rear parts), and the cooling air in the cold air channel 204 close to the guide end face 708 is reasonably distributed to prevent all the cooling air from entering the cold air channel 204 along the end close to the air inlet end face 702, thereby solving the problem of the cold air channel 204 close to the air inlet The problem of large air volume at one end of the end face 702 and small air volume at the end close to the windshield end face 704 can not only avoid the air flow from generating vortexes in the above-mentioned air guide cover 10c, but also make the air outlet of the air outlet end face 706 of the above-mentioned air guide cover 10c more uniform, thereby making the temperature distribution of the battery cell boxes 310 at different positions of the battery box array 300 more uniform, and the cooling effect of the battery cluster 10a better, thereby improving the overall performance of the battery cluster 10a (as shown in Figure 10, in the related art, when the guide end face 708 of the air guide cover is not provided with a spoiler 800, the cooling air is unevenly distributed in the cold air channel 204, the air volume at the front end of the battery box array 300 is large and the air volume at the rear end is small, resulting in uneven temperature distribution of the battery cell boxes 310 at different positions and limited cooling effect of the battery cluster 10a).

[0062] In this embodiment, as shown in FIG5 , both flow-guiding end surfaces 708 are provided with spoilers 800. This further prevents airflow from generating vortices within the air guide cover 10c and allows for more uniform airflow from the air outlet end surface 706 of the air guide cover 10c. It is understood that in other embodiments, only one of the two flow-guiding end surfaces 708 may be provided with a spoiler 800.

[0063] In this embodiment, as shown in Figures 4 and 5 , the distance between the air inlet end surface 702 and the windshield end surface 704 is L. The distance between the spoiler 800 and the windshield end surface 704 is 1 / 3L to 2 / 3L. This further prevents eddy currents from forming within the air guide 10c and ensures more uniform airflow from the air outlet end surface 706 of the air guide 10c. It will be appreciated that in other embodiments, the distance between the spoiler 800 and the windshield end surface 704 is not limited to 1 / 3L to 2 / 3L.

[0064] In this embodiment, the inner surface of the air shield cavity 700 further includes a windward end surface 709 disposed opposite the air outlet end surface 706. The end of the spoiler 800 away from the air outlet 700b is connected to the windward end surface 709. This provides a more secure connection between the spoiler 800 and the air shield cavity 700. It will be appreciated that in other embodiments, the end surface of the spoiler 800 adjacent to the windward end surface 709 may not be connected to the windward end surface 709. In this case, the spoiler 800 is connected only to the drainage end surface 708.

[0065] In this embodiment, an airflow channel is formed between the windward end surface 709 and the outlet end surface 706. This channel allows the incoming airflow to pass through. The distance between the windward end surface 709 and the outlet end surface 706 gradually decreases along the flow direction of the incoming airflow. The outlet end surface 706 is provided with an air outlet 700b that extends along the flow direction of the incoming airflow.

[0066] When the above-mentioned wind guide cover 10c is working, the incoming air flow enters the wind cover cavity 700 from the air inlet end face 702 and flows to the wind shield end face 704, and at the same time hits the windward end face 709. Since the distance between the windward end face 709 and the wind outlet end face 706 gradually decreases along the flow direction of the incoming air flow, that is, the height of the air inlet end face 702 is greater than the height of the wind shield end face 704, the windward end face 709 can press the incoming air flow down to the wind outlet end face 706 and out of the wind outlet end face 706. The air is discharged through the air outlet 700b (i.e., after the incoming airflow hits the windward end surface 709, because the height of the air inlet end surface 702 is greater than the height of the windshield end surface 704, the distance between the windward end surface 709 and the air outlet end surface 706 gradually decreases along the flow direction of the incoming airflow, thereby changing the direction of the incoming airflow and directly passing through the air flow channel to be discharged from the air outlet 700b of the air outlet end surface 706). This can reduce or even prevent the airflow from generating vortices in the air guide cover 10c. When the above-mentioned air guide cover 10c is used in the air-cooled energy storage device 10, the cooling air discharged from the air outlet 700b of the air outlet end surface 706 can smoothly enter the cold air channel 204, thereby improving the cooling effect of the battery cluster 10a (as shown in Figure 11, in the related art, the air guide cover has a rectangular structure, which causes the cooling air to generate vortices inside the air guide cover, affecting the cooling air from entering the cold air channel 204).

[0067] In this embodiment, as shown in Figure 6 , the height of the air inlet end surface 702 is H1, and the height of the wind shield end surface 704 is H2. H1 and H2 satisfy the following relationship: 1 / 5H1 < H2 < 3 / 5H1. This further reduces or even prevents eddy currents in the cooling air within the air guide 10c, ensuring that the cooling air flows smoothly into the cold air duct 204, while ensuring the air guide 10c has a reasonable size. It will be appreciated that in other embodiments, H1 and H2 are not limited to satisfying the following relationship: 1 / 5H1 < H2 < 3 / 5H1.

[0068] It should be noted that the height H1 of the air inlet end face 702 is generally determined based on the height of the air supply port 500 of the air-cooling unit 10b. Generally, the height and width of the air inlet 700a of the air inlet end face 702 should be greater than or equal to the height and width of the air supply port 500 of the air-cooling unit 10b, so that the air inlet 700a of the air inlet end face 702 can completely cover the air supply port 500 of the air-cooling unit 10b, thereby allowing all the cold air from the air supply port 500 of the air-cooling unit 10b to enter the air guide cover 10c through the air inlet 700a of the air inlet end face 702. The distance L between the air inlet end face 702 and the windshield end face 704 and the height H1 of the air inlet end face 702 are related to the height H2 of the windshield end face 704. In other words, the distance between the spoiler 800 and the windshield end face 704 and the height H1 of the air inlet end face 702 are related to the height H2 of the windshield end face 704.

[0069] In this embodiment, as shown in FIG5 , the air hood cavity 700 includes a hollow hood tube 710 and an inclined plate 720 . The hollow hood tube 710 has a hood opening and an inclined opening arranged opposite each other. The inclined plate 720 is disposed at the inclined opening. The air inlet end face 702 , the windshield end face 704 , and the flow diversion end face 708 are all located on the hollow hood tube 710 . The windward end face 709 is located on the inclined plate 720 . The air outlet 700b includes the hood opening. This makes it very convenient to construct the above-mentioned air hood cavity 700 .

[0070] In this embodiment, the hollow cover tube 710 includes an air inlet side 712 and a wind shielding side 714 disposed opposite each other. The air inlet side 712 and the wind shielding side 714 each have a first flow-guiding side 716 on one side and a second flow-guiding side 718 on the other side. The air inlet end surface 702 is located on the air inlet side 712. The wind shielding end surface 704 is located on the wind shielding side 714. The first flow-guiding side 716 and the second flow-guiding side 718 each have a flow-guiding end surface 708.

[0071] In this embodiment, the hood opening is a planar opening. That is, the end surface of the hood opening away from the inclined plate 720 is planar. This makes it easier for the air hood cavity 700 to be sealed and positioned on the air inlet side 202 of the battery cluster 10a, and also facilitates the formation of the air hood cavity 700 having an air inlet side 712, a windshield side 714, and the inclined plate 720. It will be understood that in other embodiments, a sealable hood opening can be positioned on the air inlet side 202 of the battery cluster 10a, and the end surface of the hood opening away from the inclined plate 720 can be non-planar. For example, when the hood opening has a partial convexity (or partial concavity), the air inlet side 202 of the battery cluster 10a has a corresponding partial concavity (or partial convexity).

[0072] In this embodiment, the air inlet side 712, the first air guide side 716, the wind shield side 714, and the second air guide side 718 are sequentially connected. That is, in this embodiment, the air guide cover 10a has a quadrilateral structure, specifically a trapezoidal structure. This makes it easier to manufacture the air guide cover 10a. It is understood that in other embodiments, the air guide cover 10a may also have a pentagonal structure or a more polygonal structure.

[0073] In this embodiment, the air inlet 700a extends through the end of the air inlet side 712 away from the inclined plate 720. This allows the air hood cavity 700 to have a smaller size. It is understood that in other embodiments, the air inlet 700a may not extend through the end of the air inlet side 712 away from the inclined plate 720.

[0074] In this embodiment, the end surface of the spoiler 800 facing away from the inclined plate 720 is flush with the end surface of the hood opening. This further ensures the distribution of cooling air within the cold air duct 204, resulting in more uniform temperature distribution of the cell boxes 310 at different locations within the battery box array 300, thereby improving the overall performance of the battery cluster 10a. It is understood that in other embodiments, the end surface of the spoiler 800 facing away from the inclined plate 720 may also be located inward of the end surface of the hood opening.

[0075] In this embodiment, as shown in Figure 7, multiple cold air ducts 204 are arranged at intervals along the arrangement direction of the air inlet end face 702 and the wind shield end face 704, that is, along the arrangement direction of the two air guide end faces 708. In the arrangement direction of the air inlet end face 702 and the wind shield end face 704, the width of the spoiler 800 is S1, and the width of the cold air duct 204 at the end is S2. S1 and S2 satisfy the following relationship: 1 / 2S2 < S1 < 4 / 5S2. This ensures that the spoiler 800 has a reasonable size and further ensures the distribution of cooling air in the cold air duct 204, thereby achieving more uniform temperature distribution of the cell boxes 310 at different locations in the battery box array 300 and improving the overall performance of the battery cluster 10a. It is understood that in other embodiments, S1 and S2 are not limited to satisfying the following relationship: 1 / 2S2 < S1 < 4 / 5S2.

[0076] In this embodiment, the width of the plurality of cold air channels 204 is the same, namely S2, which greatly facilitates the manufacture of the battery cluster 10a. It is understood that in other embodiments, the width of the cold air channel 204 located in the middle may be greater or less than the width S2 of the cold air channel 204b located at the end.

[0077] In this embodiment, as shown in FIG2 , the housing 200 includes a main frame 210 and a mounting frame 220 that are connected. The air inlet side 202 and the cold air duct 204 are located on the main frame 210. The battery box array 300 is located within the main frame 210, with the air outlet side 300a of the battery box array 300 facing the mounting frame 220. One side of the mounting frame 220 protrudes beyond the air inlet side 202 of the main frame 210. The air cooling unit 10b is disposed on the mounting frame 220, and the air supply port 500 of the air cooling unit 10b is located on the portion of the mounting frame 220 that protrudes beyond the main frame 210. The air hood cavity 700 is disposed on the air inlet side 202, and the air outlet 700b of the air outlet end surface 706 of the air hood cavity 700 is disposed correspondingly to the air inlet side 202 of the battery box array 300. The air inlet 700a of the air inlet side 712 of the air hood cavity 700 is connected to the air supply port 500 of the air cooling unit 10b. This ensures that the air-cooled energy storage device 10 has a strong overall structural integrity.

[0078] In this embodiment, the main frame 210 and the installation frame 220 both have an open side in the circumferential direction, and the open side of the main frame 210 and the open side of the installation frame 220 are sealed and enclosed to form the box body 200. In this way, the box body 200 is very convenient to form.

[0079] In this embodiment, the cell box 310 has heat dissipation inlets 312 a on both sides of the two air guide end surfaces 708 in the arrangement direction, so that the cooling air from the air cooling channel 202 can easily enter the cell box 310 .

[0080] In this embodiment, as shown in Figures 8 and 9, a battery cell box 310 includes a housing 314 and a battery cell module 316 disposed within the housing 314. The number of battery cell modules 316 is greater than or equal to one. Each battery cell module 316 includes multiple stacked battery cells. This arrangement of cells can increase the energy density of the battery cell box 310. It will be appreciated that in other embodiments, the arrangement of the battery cells within the battery cell box 310 can be customized based on actual needs.

[0081] In this embodiment, the gap inside the housing 314 and the heat dissipation inlet 312 a and the heat dissipation outlet 312 b on the housing 314 constitute the heat dissipation channel 312 .

[0082] In this embodiment, the battery box 310 further includes a fan 318. The fan 318 is located within the housing 314 and is positioned at the heat dissipation outlet 312b. The fan 318 allows the airflow within the heat dissipation channel 312 to be quickly discharged through the heat dissipation outlet 312b, thereby achieving a better heat dissipation effect. It is understood that in other embodiments, the battery box 310 may not include the fan 318, but instead utilize a fan within the housing 200 to quickly discharge the airflow within the heat dissipation channel 312 through the heat dissipation outlet 312b.

[0083] Specifically, in this embodiment, the housing 314 includes a U-shaped bottom frame 314a, a front panel 314b located in front of the bottom frame 314a, a rear panel 314c located in the rear of the bottom frame 314a, and a top cover 314d located above the bottom frame 314a. Heat dissipation inlets 312a are provided on both the left and right sides of the bottom frame 314a, and heat dissipation outlets 312b are located on the front panel 314b.

[0084] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An air guide cover, characterized in that: It includes a wind shield cavity; The inner surface of the wind shield cavity includes an air inlet end face, a wind blocking end face, and an air outlet end face; the air inlet end face and the wind blocking end face are arranged opposite to each other. The air inlet end face is used for the inflow of the incoming air current, the wind blocking end face is used for impacting the incoming air current to form a diffused air current, and the air outlet end face is used for the outflow of the diffused air current; The inner surface of the wind shield cavity further includes a diversion end face located on the sides of the air inlet end face and the wind blocking end face, and at least one of the diversion end faces is provided with a spoiler; The spoiler does not block the flow of the incoming air current between the air inlet end face and the wind blocking end face, and the spoiler can block the diffused air current from flowing along the diversion end face.

2. The air deflector according to claim 1, characterized in that: The distance between the air inlet end face and the wind blocking end face is L, and the distance between the spoiler and the wind blocking end face is 1 / 3L - 2 / 3L.

3. The air guide cover according to claim 1, characterized in that: The inner surface of the wind shield cavity further includes a windward end face arranged opposite to the air outlet end face. An air flow channel is formed between the windward end face and the air outlet end face. The air flow channel is used for the incoming air current to pass through, and along the flowing direction of the incoming air current, the distance between the windward end face and the air outlet end face gradually decreases.

4. The air guide cover according to claim 3, characterized in that: The air outlet end face is provided with an air outlet that can extend along the flowing direction of the incoming air current.

5. The air guide cover according to claim 3, characterized in that: The height of the air inlet end face is H1, and the height of the wind blocking end face is H2. H1 and H2 satisfy: 1 / 5H1 < H2 < 3 / 5H1.

6. The air guide cover according to claim 3, wherein: The air outlet end face is provided with an air outlet, and the end of the spoiler far from the air outlet is connected to the windward end face.

7. The air guide cover according to claim 3, characterized in that: The wind shield cavity includes a hollow cover cylinder and an inclined plate. The hollow cover cylinder has an opposed cover opening and an inclined surface opening. The inclined plate is arranged at the inclined surface opening. The air inlet end face, the wind blocking end face, and the diversion end face are all located on the hollow cover cylinder, and the windward end face is located on the inclined plate.

8. The air guide cover according to claim 7, characterized in that: The end face of the spoiler far from the inclined plate is flush with the end face of the cover opening.

9. The air guide cover according to claim 7, characterized in that: The hollow cover cylinder includes an opposed air inlet side and a wind blocking side. One side of the air inlet side and the wind blocking side has a first diversion side, and the other side has a second diversion side. The air inlet end face is located on the air inlet side, the wind blocking end face is located on the wind blocking side, and each of the first diversion side and the second diversion side has one of the diversion end faces.

10. The air guide cover according to claim 9, wherein: The cover opening is a flat opening.

11. The air guide cover according to claim 9, characterized in that: The air inlet side, the first diversion side, the wind blocking side, and the second diversion side are connected in sequence.

12. The air guide cover according to claim 9, characterized in that: The air inlet end face is provided with an air inlet, and the air inlet penetrates through the end of the air inlet side far from the inclined plate.

13. An air-cooled energy storage device, characterized in that, It includes: A battery cluster having an air inlet side and a cold air channel, and the air inlet of the cold air channel is located on the air inlet side; An air-cooled unit arranged on the battery cluster, and the air-cooled unit has an air supply port; and The air guide cover according to any one of claims 1 - 12, which is covered on the air inlet side. The air inlet end face of the air guide cover is communicated with the air supply port of the air-cooled unit, and the air outlet end face of the air guide cover is communicated with the air inlet of the cold air channel.

14. The air-cooled energy storage device according to claim 13, wherein There are multiple cold air channels, and the multiple cold air channels are arranged at intervals along the arrangement direction on both sides of the air inlet end face and the wind blocking end face.

15. The air-cooled energy storage device according to claim 14, wherein, In the arrangement direction on both sides of the air inlet end face and the wind shield end face, the width of the spoiler is S1, and the width of the cold air channel at the end is S2, and S1 and S2 satisfy: 1 / 2S2 < S1 < 4 / 5S2.

16. The air-cooled energy storage device according to claim 14, wherein, The widths of the multiple cold air channels are the same.

17. The air-cooled energy storage device according to claim 14, characterized in that, The battery cluster includes a box body and a battery cell box array. The air inlet side and the cold air channels are located on the box body. The battery cell box array is arranged in the box body. The battery box array includes multiple battery cell boxes, and the multiple battery cell boxes are arranged in an array. Each vertical row of battery cell boxes is located between two adjacent cold air channels. The air-cooling unit is arranged on the box body.

18. The air-cooled energy storage device according to claim 17, wherein The battery cell box array has an air outlet side. The battery cell box has a heat dissipation channel. The heat dissipation channel has a heat dissipation inlet communicating with the cold air channel and a heat dissipation outlet located on the air outlet side. The air-cooling unit also has a return air port. The return air port is located on the air outlet side and communicates with the heat dissipation outlet.

19. The air-cooled energy storage device according to claim 18, wherein, The box body includes a connected main frame and an installation frame. The air inlet side and the cold air channels are located on the main frame. The battery box array is located within the main frame, and the air outlet side faces the installation frame. One side of the installation frame protrudes beyond the air inlet side. The air-cooling unit is arranged on the installation frame, and the air supply port is located on the part of the installation frame that protrudes beyond the main frame.

20. The air-cooled energy storage device according to claim 19, wherein Both the main frame and the installation frame have an open side in the circumferential direction. The open side of the main frame and the open side of the installation frame are hermetically enclosed to form the box body.

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