Battery cabinets and energy storage containers

Abstract

The embodiment of the present invention provides a battery cabinet and an energy storage container, which belongs to the field of energy storage technology, to solve the problem of poor cooling effect on battery components. The battery cabinet of the embodiment of the present invention includes a cabinet body, a heat dissipation system and a battery component arranged in the cabinet body, the heat dissipation system includes a heat dissipation channel and a fan system installed on the heat dissipation channel, and an air outlet component is arranged on the heat dissipation channel, and the air outlet component includes a main air outlet and an auxiliary air outlet arranged on the heat dissipation channel; the main air outlet corresponds to the bottom surface of the battery component in the vertical direction, so that the air flowing out of the main air outlet flows through the lower part of the bottom surface; the auxiliary air outlet corresponds to the side surface of the battery component adjacent to the bottom surface, which increases the contact area between the air flowing out of the heat dissipation channel and the battery component, enhances the cooling effect on the battery component, and improves the heat dissipation efficiency of the battery cabinet.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage, and in particular relates to a battery cabinet and an energy storage container. Background Art

[0002] In wind power plants, photovoltaic power plants and other new energy power plants or microgrids and other technical fields, energy storage containers are generally required to meet the demand for mobile power. Battery cabinets are usually installed in energy storage containers.

[0003] In the related art, a battery cabinet generally includes a cabinet body, a heat dissipation system, and a plurality of battery assemblies arranged in the cabinet body. A plurality of accommodating spaces are arranged at intervals in the vertical direction on the cabinet body, and a battery assembly is arranged in each accommodating space. The heat dissipation system includes a heat dissipation channel arranged in the vertical direction and a fan connected to the heat dissipation channel. A plurality of air outlets are arranged at intervals in the vertical direction on the heat dissipation channel, and each air outlet is arranged facing the bottom of a battery assembly in an accommodating space. When working, the fan drives the air in the heat dissipation channel to flow out through each air outlet, and the air flowing out of the air outlet performs heat exchange with the bottom of the corresponding battery assembly to achieve cooling of the battery assembly.

[0004] However, the battery cabinet of the related art has a poor cooling effect on the battery components. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides a battery cabinet and an energy storage container to solve the technical problem of poor cooling effect on battery components.

[0006] An embodiment of the present invention provides a battery cabinet, comprising: a cabinet, a heat dissipation system, and a battery assembly arranged in the cabinet, wherein the heat dissipation system comprises a heat dissipation channel and a fan installed on the heat dissipation channel, an air outlet assembly is arranged on the heat dissipation channel, and the air outlet assembly comprises a main air outlet and an auxiliary air outlet arranged on the heat dissipation channel;

[0007] The main air outlet corresponds to the bottom surface of the battery assembly in the vertical direction, so that the air flowing out of the main air outlet flows through the lower part of the bottom surface; the auxiliary air outlet corresponds to the side surface of the battery assembly adjacent to the bottom surface.

[0008] In this way, by arranging the main air outlet and the auxiliary air outlet on the heat dissipation channel, the air flowing out of the main air outlet can dissipate heat on the bottom surface of the battery assembly, and the air flowing out of the auxiliary air outlet can dissipate heat on the side surface of the battery assembly. Compared with the battery cabinet in the related art, the contact area between the air flowing out of the heat dissipation channel and the battery assembly is increased, the heat exchange between the air flowing out of the heat dissipation channel and the battery assembly is increased, the cooling effect on the battery assembly is enhanced, and the heat dissipation efficiency of the battery cabinet is improved.

[0009] In some embodiments that may include the above embodiments, the cabinet has a plurality of accommodating spaces spaced apart in a vertical direction, there are a plurality of battery assemblies, and one battery assembly is accommodated in each accommodating space;

[0010] The heat dissipation channel extends in a vertical direction, and there are multiple air outlet components, each of which corresponds to a battery component.

[0011] Such an arrangement can increase the number of battery components in the battery cabinet and improve the battery capacity of the battery cabinet. In addition, the battery cabinet can dissipate heat for each battery component to ensure the cooling effect of multiple battery components in the battery cabinet.

[0012] In some embodiments that may include the above embodiments, the battery assembly includes a first battery cell assembly and a second battery cell assembly arranged side by side, a gap is provided between the first battery cell assembly and the second battery cell assembly, and the auxiliary air outlet is arranged opposite to the gap.

[0013] With such an arrangement, the air flowing out of the auxiliary air outlet can simultaneously exchange heat with the side of the first battery cell assembly and the side of the second battery cell assembly, and dissipate heat for the first battery cell assembly and the second battery cell assembly, thereby increasing the contact area between the air flowing out of the heat dissipation channel and the first battery cell assembly and the second battery cell assembly, enhancing the cooling effect on the first battery cell assembly and the second battery cell assembly, and improving the heat dissipation efficiency of the battery cabinet.

[0014] In some embodiments that may include the above embodiments, the main air outlet includes a first main air outlet and a second main air outlet, the first main air outlet corresponds to the bottom surface of the first battery cell assembly, and the second main air outlet corresponds to the bottom surface of the second battery cell assembly.

[0015] With such an arrangement, the first battery cell assembly and the second battery cell assembly are the main heat dissipation elements of the battery assembly. The air flowing out of the first main air outlet can dissipate heat to the bottom surface of the first battery cell assembly, and the air flowing out of the second main air outlet can dissipate heat to the bottom surface of the second battery cell assembly. The main heat dissipation elements can be accurately dissipated, thereby improving the heat dissipation efficiency of the battery cabinet.

[0016] In some embodiments that may include the above embodiments, the air outlet assembly further includes a main air duct and an auxiliary air duct, the main air duct includes a first main air duct and a second main air duct, the air inlet end of the first main air duct is connected to the first main air outlet, the air outlet end of the first main air duct extends to the bottom surface of the first battery cell assembly, the air inlet end of the second main air duct is connected to the second main air outlet, and the air outlet end of the second main air duct extends to the bottom surface of the second battery cell assembly;

[0017] The air inlet end of the auxiliary air guide pipe is communicated with the auxiliary air outlet, and the air outlet end of the auxiliary air guide pipe extends toward the gap.

[0018] With such an arrangement, the first main air duct, the second main air duct and the auxiliary air duct guide the outflowing air, so that the air flowing out from the first main air outlet, the second main air outlet and the auxiliary air outlet can accurately flow to the bottom surface of the first battery cell assembly, the bottom surface of the second battery cell assembly and the gap, thereby ensuring the cooling effect on the first battery cell assembly and the second battery cell assembly.

[0019] In some embodiments that may include the above embodiments, the cross-sectional area of ​​the auxiliary air guide duct gradually decreases from the air inlet end to the air outlet end.

[0020] With such arrangement, the air flowing out of the auxiliary air outlet has a higher wind speed after flowing out through the auxiliary air duct, thereby enhancing the cooling effect on the first battery cell assembly and the second battery cell assembly.

[0021] In some embodiments that may include the above-mentioned embodiments, the air outlet assembly also includes a first air guide plate and a second air guide plate arranged in the heat dissipation channel, the heat dissipation channel includes a first side wall and a second side wall arranged opposite to each other, and the main air outlet and the auxiliary air outlet are both arranged on the first side wall; the heat dissipation channel includes an air inlet end, the air inlet end is located above the heat dissipation channel in the vertical direction, the first air guide plate is arranged on the first side wall on the side of the auxiliary air outlet away from the air inlet end, and the second air guide plate is arranged on the first side wall on the side of the main air outlet away from the air inlet end.

[0022] With this arrangement, air enters from the air inlet end of the heat dissipation channel, flows out through the auxiliary air outlet under the action of the first air guide plate, and flows out through the main air outlet under the action of the second air guide plate. The first air guide plate and the second air guide plate have the function of slowing down and guiding the air in the heat dissipation channel, and can adjust the air volume of the auxiliary air outlet and the main air outlet to ensure the uniformity of the air volume of the auxiliary air outlet and the main air outlet, avoid the phenomenon of excessive local temperature of the battery assembly due to uneven air volume, and reduce the temperature difference in the battery cabinet.

[0023] In some embodiments that may include the above embodiments, the distance between the first air guide plate close to the air inlet end and the second side wall is greater than the distance between the other first air guide plates and the second side wall.

[0024] Such a configuration can reduce the amount of air flowing out of the auxiliary air outlet near the air inlet end, avoid excessive air flowing out of the auxiliary air outlet near the air inlet end, ensure the uniformity of air outlet from multiple auxiliary air outlets along the vertical direction in the heat dissipation channel, thereby ensuring uniform heat dissipation of multiple battery components, avoiding the phenomenon of excessive local temperature of the battery components due to uneven air outlet, and reducing the temperature difference in the battery cabinet.

[0025] In some embodiments that may include the above embodiments, there are multiple fans, and the multiple fans are symmetrically arranged along the central plane in the vertical direction of the main air outlet, and the distance between the first air guide plate and the second side wall is smaller than the distance between the second air guide plate and the second side wall.

[0026] Such an arrangement can increase the amount of air entering the heat dissipation channel. At the same time, since multiple fans are symmetrically arranged along the central plane in the vertical direction of the main air outlet, the amount of air in the heat dissipation channel in the direction corresponding to the central plane is small, resulting in a small amount of air at the auxiliary air outlet. By making the distance between the first air guide plate and the second side wall smaller than the distance between the second air guide plate and the second side wall, the amount of air flowing out of the auxiliary air outlet can be increased, and the uniformity of the air outflow from the main air outlet and the auxiliary air outlet can be improved, thereby ensuring uniform heat dissipation of multiple battery assemblies, avoiding the phenomenon of excessive local temperature of the battery assembly due to uneven air outlet, and reducing the temperature difference in the battery cabinet.

[0027] Another aspect of an embodiment of the present invention provides an energy storage container, comprising any of the battery cabinets described above.

[0028] Since the energy storage container of the embodiment of the present invention includes the above-mentioned battery cabinet, the energy storage container also has the advantages of the above-mentioned battery cabinet. For details, please refer to the above description, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention 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. It is obvious that the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of a battery cabinet according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 Schematic diagram of the explosion structure of the battery cabinet in FIG.

[0032] Figure 3 for Figure 1 A front perspective view of a battery assembly and a support frame;

[0033] Figure 4 for Figure 1 A rear perspective view of a battery assembly and a support frame;

[0034] Figure 5 for Figure 4 Schematic diagram of the exploded structure of the battery assembly and the support frame;

[0035] Figure 6 for Figure 1 A top view of the cooling system;

[0036] Figure 7 for Figure 6 AA section view of the cooling system.

[0037] Description of reference numerals:

[0038] 10-cabinet;

[0039] 11-frame; 12-bracket; 121-first support rod;

[0040] 122-second supporting rod; 13-support frame; 131-first supporting rod;

[0041] 132-second support rod; 133-third support rod; 134-first support platform;

[0042] 135-second supporting platform; 14-wind shield; 141-connecting part;

[0043] 142 - ventilation hole; 143 - first fixing rod; 144 - second fixing rod;

[0044] 20- Cooling system;

[0045] 21- heat dissipation channel; 211- top air duct; 212- side air duct;

[0046] 213-first side wall; 214-second side wall; 215-second main air outlet;

[0047] 216- auxiliary air outlet; 217- first air guide plate; 218- second air guide plate;

[0048] 22-fan; 23-main air duct; 24-auxiliary air duct;

[0049] 30-battery assembly;

[0050] 31-first battery cell assembly; 32-second battery cell assembly; 33-gap. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the related art, the battery assembly is installed in the accommodating space of the cabinet, and the air outlet of the heat dissipation channel is arranged opposite to the bottom of the battery assembly in the accommodating space. When working, the fan drives the air in the heat dissipation channel to flow out through the air outlet, and the air flowing out of the air outlet exchanges heat with the corresponding bottom of the battery assembly to achieve cooling of the battery assembly. However, the battery cabinet in the related art only exchanges heat with the bottom of the battery assembly, and the contact area between the air flowing out of the heat dissipation channel and the battery assembly is limited, resulting in poor cooling effect on the battery assembly, affecting the working performance and service life of the battery assembly.

[0053] The embodiments of the present invention provide a battery cabinet and an energy storage container. A main air outlet and an auxiliary air outlet are arranged on a heat dissipation channel. The air flowing out of the main air outlet cools the bottom surface of the battery assembly, and the air flowing out of the auxiliary air outlet cools the side surface of the battery assembly. Compared with the battery cabinet in the related art, the contact area between the air and the battery assembly is increased, and the cooling effect on the battery assembly is enhanced.

[0054] The embodiment of the present invention provides a battery cabinet. Figure 1 The battery cabinet includes a cabinet body 10, a heat dissipation system 20 and a battery assembly 30. The battery assembly 30 is arranged in the cabinet body 10, and the heat dissipation system 20 is used to dissipate heat for the battery assembly 30.

[0055] In some implementations, the battery cabinet can be set in a container to form an energy storage container, which is used to meet the mobile power demand in new energy power plants or microgrids and other technical fields. For example, energy storage containers are used in wind power plants to stabilize the balance of power supply and demand and maintain efficient and safe operation of the power grid.

[0056] In this embodiment, the cabinet 10 is surrounded by a storage space, and the battery assembly 30 is placed in the storage space. The cabinet 10 provides support and protection for the battery assembly 30. There can be multiple storage spaces, and the multiple storage spaces are arranged at intervals along the vertical direction. Figure 1 Take the orientation shown in as an example. Accordingly, there are multiple battery assemblies 30, and each accommodating space contains a battery assembly 30. In this way, multiple battery assemblies 30 can be placed in the cabinet 10 to increase the number of battery assemblies 30 in the cabinet 10 and improve the battery capacity of the battery cabinet.

[0057] In some implementations, the accommodating space may be a semi-enclosed cavity with open sides, and the battery assembly 30 may be placed in the semi-enclosed cavity from the open sides. The semi-enclosed cavity may be integrally formed with the cabinet 10, or may be formed by connecting a plurality of plates.

[0058] In other implementations, the accommodating space may also be an open space to facilitate heat dissipation of the battery assembly 30 to the surroundings. Figure 1 and Figure 2 The cabinet 10 includes a frame 11 and a support frame 13. The frame 11 may include four longitudinal bars and four transverse bars, the four longitudinal bars are arranged in parallel and spaced apart in the vertical direction, the four transverse bars are connected to the top ends of the four longitudinal bars, the four longitudinal bars and the four transverse bars are arranged to form a rectangular space, and the four longitudinal bars are respectively located at four edges of the rectangular space parallel to the vertical direction, and the four transverse bars are respectively located at the edges of the top surface of the rectangular space.

[0059] Please refer to Figure 3 , Figure 4 and Figure 5 The support frame 13 includes two first support rods 131, two second support rods 132 and a third support rod 133. The two first support rods 131 are arranged in parallel and are respectively connected to the frame 11. The two ends of one second support rod 132 are respectively connected to one end of the two first support rods 131, and the two ends of another second support rod 132 are respectively connected to the other end of the two first support rods 131. The third support rod 133 is parallel to the first support rod 131, and the two ends of the third support rod 133 are respectively connected to the middle of the two second support rods 132. The first support rod 131, the second support rod 132 and the third support rod 133 are all provided with support surfaces, and the support surfaces are connected to form a first support platform 134 and a second support platform 135 for mounting the battery assembly 30, and an open space is formed above the first support platform 134 and the second support platform 135. The battery assembly 30 is installed on the first support platform 134 and the second support platform 135. The battery assembly 30 can dissipate heat to the surroundings through the open space on the first support platform 134 and the second support platform 135 to prevent the battery assembly 30 from being overheated and affecting its working performance and service life.

[0060] The cabinet 10 further includes a bracket 12, which includes a first support rod 121 and a second support rod 122, which are symmetrically and evenly installed in the frame 11 along the vertical direction. Two first support rods 131 can be detachably connected to the first support rod 121 and the second support rod 122, respectively.

[0061] Exemplarily, in the embodiment of the present invention, the first support rod 121 has two mutually perpendicular side walls, one of which is connected to a side of the frame 11. The second support rod 122 has two mutually perpendicular side walls, one of which is connected to a side of the frame 11 away from the first support rod 121. The two first support rods 131 can be slidably connected to the other side wall of the first support rod 121 and the other side wall of the second support rod 122, respectively. When disassembling or overhauling the battery assembly 30, the support frame 13 can be pulled, and the two first support rods 131 slide relative to the first support rod 121 and the second support rod 122, so that the battery assembly 30 is pulled out of the frame 11, which is convenient for disassembling or overhauling the battery assembly 30. After the disassembly and overhaul of the battery assembly 30 are completed, the support frame 13 can be pushed, and the two first support rods 131 slide relative to the first support rod 121 and the second support rod 122, so that the battery assembly 30 is inserted into the frame 11.

[0062] The cabinet 10 further includes a windshield 14. The windshield 14 is located on a side of the battery assembly 30 away from the heat dissipation system 20, and is vertically arranged and connected to the cabinet 10. The windshield 14 can block the hot air flow outside the battery cabinet from entering the battery assembly 30, prevent the hot air flow outside from exchanging heat with the cooled battery assembly 30, and ensure the cooling effect of the battery assembly 30.

[0063] For example, please refer to Figure 3 , Figure 4 and Figure 5 , the windshield 14 is connected to one end of the two first support rods 131. The windshield 14 is connected to one end of the two first support rods 131 through a first fixing rod 143 arranged in the vertical direction and a second fixing rod 144 perpendicular to the first fixing rod 143, so as to improve the connection strength with the two first support rods 131. A connecting portion 141 is provided at the edge of the windshield 14, and the connecting portion 141 is detachably connected to the frame 11. Ventilation holes 142 are provided on the windshield 14, and the air flowing out of the heat dissipation system 20 can flow out through the ventilation holes 142 after cooling the battery assembly 30, so as to prevent the air that absorbs the heat of the battery assembly 30 from flowing back into the battery cabinet and affecting the cooling effect on the battery assembly 30.

[0064] In other embodiments of the present invention, when the accommodating space is a semi-enclosed cavity with open sides, the baffle 14 can be arranged at the opening of the semi-enclosed cavity and connected to the cabinet 10 to prevent the external hot air flow from exchanging heat with the cooled battery assembly 30, thereby ensuring the cooling effect of the battery assembly 30.

[0065] Please refer to Figure 1 and Figure 2 The heat dissipation system 20 is installed on the frame 11, and the heat dissipation system 20 is used to dissipate heat from the battery assembly 30. The heat dissipation system 20 includes a heat dissipation channel 21 and a fan 22. Please refer to Figure 6 and Figure 7 The heat dissipation channel 21 includes a first side wall 213 and a second side wall 214 that are arranged opposite to each other. The heat dissipation channel 21 includes an air inlet end, which is located above the heat dissipation channel 21 in the vertical direction.

[0066] Exemplarily, the heat dissipation channel 21 includes a top air duct 211 and a side air duct 212. The top air duct 211 is arranged at the top of the frame 11, and the side air duct 212 is connected to a side surface of the frame 11 along the vertical direction, that is, the side air duct extends along the side of the frame 11 to the bottom of the frame 11; the side air duct 212 is connected to the top air duct 211, and a fan 22 is arranged on the top air duct 211, and the fan 22 can transport external air to the top air duct 211 and the side air duct 212.

[0067] In an embodiment of the present invention, an air outlet component is provided on the heat dissipation channel 21 . Exemplarily, the air outlet component can be provided on the side air duct 212 . After the air in the side air duct 212 flows out from the air outlet component, it is blown toward the battery assembly 30 to cool the battery assembly 30 .

[0068] Furthermore, the air outlet assembly includes a main air outlet and an auxiliary air outlet 216. The main air outlet corresponds to the bottom surface of the battery assembly 30 in the vertical direction, so that the air flowing out of the main air outlet flows through the lower part of the bottom surface, and the air flowing through the lower part of the bottom surface exchanges heat with the bottom surface of the battery assembly 30 to cool the battery assembly 30. The auxiliary air outlet 216 corresponds to the side surface of the battery assembly 30 adjacent to the bottom surface. Exemplarily, the auxiliary air outlet 216 can be arranged directly opposite the side surface, so that the air flowing out of the auxiliary air outlet 216 directly contacts the side surface, thereby cooling the side surface. The side surface can be the side surface of the battery assembly 30 close to the side air duct 212.

[0069] The battery cabinet provided by the embodiment of the present invention has a battery assembly 30 arranged in the cabinet body 10, and the heat dissipation system 20 includes a heat dissipation channel 21 and a fan 22 connected to the heat dissipation channel 21. The heat dissipation channel 21 is provided with an air outlet component, and the air outlet component includes a main air outlet and an auxiliary air outlet 216 arranged on the heat dissipation channel 21, the main air outlet corresponds to the bottom surface of the battery assembly 30, and the auxiliary air outlet 216 corresponds to the side surface of the battery assembly 30 adjacent to the bottom surface; when the fan 22 is working, the air flowing out of the main air outlet flows through the bottom surface of the battery assembly 30, and the air flowing out of the auxiliary air outlet 216 blows to the side surface of the battery assembly 30, and the air can simultaneously perform heat exchange with the bottom surface and the side surface of the battery assembly 30. Compared with the case where the air only performs heat exchange with the bottom surface of the battery assembly 30, the contact area between the air and the battery assembly 30 is increased, the cooling effect on the battery assembly 30 is enhanced, and the heat dissipation efficiency of the battery cabinet is improved.

[0070] Please refer to Figure 2 and Figure 7 , illustratively, in the embodiment of the present invention, the side air duct 212 includes a first side wall 213 and a second side wall 214, the first side wall 213 is located on the side of the battery assembly 30 away from the wind shield 14, and the main air outlet and the auxiliary air outlet 216 are arranged on the first side wall 213. The second side wall 214 is arranged opposite to the first side wall 213. After the air flowing out of the main air outlet and the auxiliary air outlet 216 on the first side wall 213 cools the battery assembly 30, it can flow out of the battery cabinet from the ventilation holes 142 of the wind shield 14, so as to prevent the air that absorbs the heat of the battery assembly 30 from flowing back into the battery cabinet and affecting the cooling effect of the battery assembly 30.

[0071] When a plurality of battery assemblies 30 are provided in the embodiment of the present invention, the side air duct 212 extends in the vertical direction accordingly, and there are a plurality of air outlet assemblies on the first side wall 213, each of which corresponds to a battery assembly 30, so that the air outlet assembly can dissipate heat for each battery assembly 30, thereby ensuring the cooling effect of the plurality of battery assemblies 30 in the battery cabinet.

[0072] Please refer to Figure 6 and Figure 7 The air outlet assembly also includes a first air guide plate 217 and a second air guide plate 218 disposed in the heat dissipation channel 21. The first air guide plate 217 is disposed on the first side wall 213 on the side of the auxiliary air outlet 216 away from the air inlet end, and the second air guide plate 218 is disposed on the first side wall 213 on the side of the main air outlet away from the air inlet end. The external air enters the heat dissipation channel 21 from the air inlet end under the action of the fan 22, and the air in the heat dissipation channel 21 flows out through the auxiliary air outlet 216 under the action of the first air guide plate 217 to dissipate heat on the side of the battery assembly 30; and flows out through the main air outlet under the action of the second air guide plate 218 to dissipate heat on the bottom surface of the battery assembly 30. The first air guide plate 217 and the second air guide plate 218 slow down and guide the air in the heat dissipation channel 21 to adjust the air volume and wind direction of the auxiliary air outlet 216 and the main air outlet, ensure the uniformity of the air volume of the auxiliary air outlet 216 and the main air outlet, avoid the phenomenon of excessive local temperature of the battery assembly 30 due to uneven air volume, and reduce the temperature difference in the battery cabinet.

[0073] For example, in the embodiment of the present invention, the side air duct 212 is connected to the top air duct 211, the top air duct 211 includes an air inlet end, the air inlet end is located above the top air duct 211 in the vertical direction, the first air guide plate 217 is arranged on the first side wall 213 on the side of the auxiliary air outlet 216 away from the air inlet end, and the second air guide plate 218 is arranged on the first side wall 213 on the side of the main air outlet away from the air inlet end. Please refer to Figure 7, the direction of the dotted arrow indicates the direction of air flow when the heat dissipation system 20 dissipates heat for the battery assembly 30. Under the action of the fan 22, the external air enters from the air inlet end of the top air duct 211, and then enters the side air duct 212. The air in the side air duct 212 flows out through the auxiliary air outlet 216 under the action of the first air guide plate 217 to dissipate heat on the side of the battery assembly 30; and flows out through the main air outlet under the action of the second air guide plate 218 to dissipate heat on the bottom of the battery assembly 30. The first air guide plate 217 and the second air guide plate 218 decelerate and guide the air in the side air duct 212 to adjust the air volume and wind direction of the auxiliary air outlet 216 and the main air outlet, ensure the uniformity of the air volume of the auxiliary air outlet 216 and the main air outlet, avoid the phenomenon of excessively high local temperature of the battery assembly 30 due to uneven air volume, and reduce the temperature difference in the battery cabinet.

[0074] In the embodiment of the present invention, the distance between the first air guide plate 217 near the air inlet end and the second side wall 214 is greater than the distance between the other first air guide plates 217 and the second side wall 214. Since the amount of air near the air inlet end in the side air duct 212 is relatively large, such a configuration can reduce the amount of air flowing out of the auxiliary air outlet 216 near the air inlet end, and avoid a large amount of air flowing out through the auxiliary air outlet 216 near the air inlet end. The auxiliary air outlet 216 ensures the uniformity of the air outlet of the multiple auxiliary air outlets 216 in the vertical direction in the side air duct 212, thereby ensuring that the multiple battery assemblies 30 can be evenly cooled, and further reducing the temperature difference in the battery cabinet.

[0075] There can be multiple fans 22, which can increase the amount of air entering the heat dissipation channel 21 and ensure the cooling effect. When there are multiple fans 22, the multiple fans 22 are symmetrically arranged along the center plane in the vertical direction of the main air outlet. Since the multiple fans 22 are symmetrically arranged along the center plane in the vertical direction of the main air outlet, the edges of the multiple fans 22 in the side air duct 212 in the direction corresponding to the center plane are arranged, so that the amount of air here in the side air duct 212 is small, resulting in insufficient air volume at the auxiliary air outlet 216. In an embodiment of the present invention, the distance between the first air guide plate 217 and the second side wall 214 is smaller than the distance between the second air guide plate 218 and the second side wall 214, which can increase the amount of air flowing out of the auxiliary air outlet 216 and improve the uniformity of the air outlets of the main air outlet and the auxiliary air outlet 216, thereby ensuring that the multiple battery assemblies 30 can be evenly cooled and the temperature difference in the battery cabinet is reduced. It should be noted that the center plane along the vertical direction of the main air outlet refers to the center plane of the main air outlet. Figure 6 Cutaway plane shown.

[0076] Please refer to Figure 1 and Figure 2The battery assembly 30 includes a cell assembly, and the number of the cell assemblies can be multiple. Accordingly, the support frame 13 includes a plurality of third support rods 133 to form a plurality of support platforms, and the plurality of cell assemblies are installed side by side in the support frame 13.

[0077] Please refer to Figure 3 , Figure 4 and Figure 5 In the embodiment of the present invention, illustratively, the battery assembly 30 includes a first battery cell assembly 31 and a second battery cell assembly 32, and the first battery cell assembly 31 and the second battery cell assembly 32 are arranged side by side so that there is a gap 33 between the first battery cell assembly 31 and the second battery cell assembly 32, and the auxiliary air outlet 216 is arranged opposite to the gap 33. In this way, the air flowing out of the auxiliary air outlet 216 can simultaneously exchange heat with the side of the first battery cell assembly 31 and the side of the second battery cell assembly 32, and can simultaneously dissipate heat for the first battery cell assembly 31 and the second battery cell assembly 32, increase the contact area between the air flowing out of the side air duct 212 and the first battery cell assembly 31 and the second battery cell assembly 32, further enhance the cooling effect on the first battery cell assembly 31 and the second battery cell assembly 32, and improve the heat dissipation efficiency of the battery cabinet.

[0078] Correspondingly, in the embodiment of the present invention, the main air outlet includes a first main air outlet and a second main air outlet 215, the first main air outlet corresponds to the bottom surface of the first battery cell assembly 31, and the second main air outlet 215 corresponds to the bottom surface of the second battery cell assembly 32. The first battery cell assembly 31 and the second battery cell assembly 32 are the main heat dissipation components of the battery assembly 30. The air flowing out of the first main air outlet can dissipate the heat on the bottom surface of the first battery cell assembly 31, and the air flowing out of the second main air outlet 215 can dissipate the heat on the bottom surface of the second battery cell assembly 32. Such a setting can accurately dissipate the heat of the main heat dissipation components and improve the heat dissipation efficiency of the battery cabinet.

[0079] The air outlet assembly further includes a main air duct 23 and an auxiliary air duct 24. The main air duct 23 includes a first main air duct and a second main air duct. The air inlet end of the first main air duct is connected to the first main air outlet, and the air outlet end of the first main air duct extends to the bottom surface of the first battery cell assembly 31. The air inlet end of the second main air duct is connected to the second main air outlet 215, and the air outlet end of the second main air duct extends to the bottom surface of the second battery cell assembly 32. The air inlet end of the auxiliary air duct 24 is connected to the auxiliary air outlet 216, and the air outlet end of the auxiliary air duct 24 extends to the gap 33. The first main air duct, the second main air duct and the auxiliary air duct 24 guide the outflowing air, so that the air flowing out from the first main air outlet, the second main air outlet 215 and the auxiliary air outlet 216 can accurately flow to the bottom surface of the first battery cell assembly 31, the bottom surface of the second battery cell assembly 32 and the gap 33, thereby ensuring the cooling effect on the first battery cell assembly 31 and the second battery cell assembly 32 and improving the heat dissipation efficiency of the battery cabinet.

[0080] Exemplarily, the main air duct 23 is a flat hollow cuboid structure with two ends passing through, one end of the flat hollow cuboid is opened and disposed on the main air outlet. The auxiliary air duct 24 is a flat hollow cuboid structure with two ends passing through, one end of the flat hollow cuboid is opened and disposed on the auxiliary air outlet 216.

[0081] Please refer to Figure 2 In the embodiment of the present invention, the cross-sectional area of ​​the auxiliary air guide 217 gradually decreases from the air inlet end to the air outlet end. The air flowing out of the auxiliary air outlet 216 increases in speed after flowing out through the auxiliary air guide duct 24, thereby enhancing the cooling effect on the first battery cell assembly 31 and the second battery cell assembly 32. Exemplarily, the auxiliary air guide duct 24 may be a flat hollow prism structure with both ends passing through.

[0082] In other embodiments of the present invention, the cross-sectional area of ​​the first air duct and the second air duct gradually decreases from the air inlet end to the air outlet end. The air flowing out of the first air outlet 215 and the second air outlet 216 has a higher wind speed after flowing out through the first air duct and the second air duct, thereby enhancing the cooling effect on the first battery cell assembly 31 and the second battery cell assembly 32.

[0083] Continue to refer to Figure 1-Figure 7 An embodiment of the present invention further provides an energy storage container, comprising a battery cabinet according to any of the above embodiments.

[0084] The energy storage container of the embodiment of the present invention is provided with a main air outlet and an auxiliary air outlet 216 on the heat dissipation channel 21. The air flowing out of the main air outlet can dissipate heat to the bottom surface of the battery assembly 30, and the air flowing out of the auxiliary air outlet 216 can dissipate heat to the side surface of the battery assembly 30. Compared with the battery cabinet in the related art, the contact area between the air flowing out of the heat dissipation channel 21 and the battery assembly 30 is increased, the heat exchange amount between the air flowing out of the heat dissipation channel 21 and the battery assembly 30 is increased, the cooling effect on the battery assembly 30 is enhanced, and the heat dissipation efficiency of the battery cabinet is improved.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery cabinet, characterized in that: include: A cabinet, a heat dissipation system and a battery assembly arranged in the cabinet, wherein the heat dissipation system includes a heat dissipation channel and a fan installed on the heat dissipation channel, and an air outlet assembly is arranged on the heat dissipation channel, and the air outlet assembly includes a main air outlet and an auxiliary air outlet arranged on the heat dissipation channel; The main air outlet corresponds to the bottom surface of the battery assembly in the vertical direction, so that the air flowing out of the main air outlet flows through the lower part of the bottom surface; the auxiliary air outlet corresponds to the side surface of the battery assembly adjacent to the bottom surface; the battery assembly includes a first battery cell assembly and a second battery cell assembly arranged side by side, and there is a gap between the first battery cell assembly and the second battery cell assembly, and the auxiliary air outlet is arranged opposite to the gap; The air outlet assembly further comprises a first air guide plate and a second air guide plate arranged in the heat dissipation channel, the heat dissipation channel comprises a first side wall and a second side wall arranged opposite to each other, the main air outlet and the auxiliary air outlet are both arranged on the first side wall; the heat dissipation channel comprises an air inlet end, the air inlet end is located above the heat dissipation channel along the vertical direction, the first air guide plate is arranged on the first side wall on the side of the auxiliary air outlet away from the air inlet end, and the second air guide plate is arranged on the first side wall on the side of the main air outlet away from the air inlet end; There are multiple fans, and the multiple fans are symmetrically arranged along the central plane of the main air outlet in the vertical direction, and the distance between the first air guide plate and the second side wall is smaller than the distance between the second air guide plate and the second side wall.

2. The battery cabinet according to claim 1, characterized in that: The cabinet has a plurality of accommodating spaces spaced apart in the vertical direction, there are a plurality of battery assemblies, and each of the accommodating spaces contains one battery assembly; The heat dissipation channel extends in a vertical direction, and there are multiple air outlet components, each of which corresponds to one battery component.

3. The battery cabinet according to claim 2, characterized in that: The main air outlet includes a first main air outlet and a second main air outlet, the first main air outlet corresponds to the bottom surface of the first battery cell assembly, and the second main air outlet corresponds to the bottom surface of the second battery cell assembly.

4. The battery cabinet according to claim 3, characterized in that: The air outlet assembly further includes a main air duct and an auxiliary air duct, the main air duct includes a first main air duct and a second main air duct, the air inlet end of the first main air duct is connected to the first main air outlet, the air outlet end of the first main air duct extends to the bottom surface of the first battery cell assembly, the air inlet end of the second main air duct is connected to the second main air outlet, and the air outlet end of the second main air duct extends to the bottom surface of the second battery cell assembly; The air inlet end of the auxiliary air duct is communicated with the auxiliary air outlet, and the air outlet end of the auxiliary air duct extends toward the gap.

5. The battery cabinet according to claim 4, characterized in that: The cross-sectional area of ​​the auxiliary air guide pipe gradually decreases from the air inlet end to the air outlet end.

6. The battery cabinet according to claim 2, characterized in that: The distance between the first air guide plate close to the air inlet end and the second side wall is greater than the distance between other first air guide plates and the second side wall.

7. An energy storage container, characterized in that: A battery cabinet comprising the battery cabinet described in any one of claims 1 to 6.

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