Energy storage enclosure and energy storage system

Abstract

An energy storage enclosure and an energy storage system. The energy storage enclosure comprises an enclosure body, a heat dissipation assembly, and a heat dissipation fan (200). The enclosure body is provided with an installation space (121), the installation space (121) being used for accommodating an electronic device (300) such as an energy storage module. The heat dissipation assembly is disposed on the enclosure body and has a heat dissipation space independent of the installation space (121), the heat dissipation space being used for exchanging heat with the installation space (121). The heat dissipation fan (200) is disposed on the heat dissipation assembly and is used for blowing air into the heat dissipation space, so as to achieve heat exchange between the heat dissipation space and the outside environment. Upon activation of the heat dissipation fan (200), a heat dissipation airflow blown out by the heat dissipation fan (200) enters the heat dissipation space and exchanges heat with the heat dissipation assembly. The heat dissipation assembly performs heat exchange by means of connection with the enclosure body, and the enclosure body then performs heat exchange with the electronic device (300) in the installation space (121), thereby ensuring the operating temperature of the electronic device in the installation space (121).

Description

An energy storage enclosure and an energy storage system

[0001] This disclosure claims priority to Chinese Patent Application No. 2024221591903, filed on September 2, 2024, entitled "An Energy Storage Box and Energy Storage System", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to an energy storage enclosure and an energy storage system. Background Technology

[0003] To facilitate user operation and maintenance, stacked energy storage modules with higher protection levels (e.g., IP55 and above) generally employ natural cooling as their heat dissipation method. Stacked energy storage modules with lower protection levels, however, use cooling fans installed inside the storage enclosure for heat dissipation. For high-protection-level stacked energy storage modules, there are issues with low heat dissipation efficiency and poor temperature uniformity across different layers. For low-protection-level stacked energy storage modules, there is the problem of insufficient IP protection rating.

[0004] Therefore, while ensuring the protection level, how to improve the heat dissipation performance of stacked energy storage modules has become a technical challenge for those skilled in the art.

[0005] Public content

[0006] The following is an overview of the detailed description of this disclosure. This overview is not intended to limit the scope of the claims.

[0007] This disclosure provides an energy storage enclosure and an energy storage system, and the following technical solution is adopted in this disclosure:

[0008] An energy storage enclosure, comprising:

[0009] The enclosure itself has installation space;

[0010] The heat dissipation component is installed on the main body of the enclosure and has a heat dissipation space that is independent of the installation space. The heat dissipation space exchanges heat with the installation space.

[0011] A cooling fan is mounted on the heat dissipation assembly and is used to blow air into the heat dissipation space.

[0012] Optionally, in the above-mentioned energy storage box, the heat dissipation component includes a heat dissipation side plate and a heat dissipation mounting plate. The heat dissipation mounting plate is connected to the box body. The heat dissipation side plate is arranged around the heat dissipation mounting plate in a circumferential manner and together with the heat dissipation mounting plate, it encloses a heat dissipation space.

[0013] The cooling fan is mounted on the heat dissipation side panel or heat dissipation mounting plate.

[0014] Optionally, in the above-mentioned energy storage box, the heat dissipation mounting plate and the bottom plate of the box body are integrally formed into a single structure.

[0015] Optionally, in the above-mentioned energy storage box, the heat dissipation side panel and the box body side panel are integrally formed into a single structure.

[0016] Optionally, in the above-mentioned energy storage box, the heat dissipation mounting plate is provided with heat dissipation teeth, and the heat dissipation teeth are located in the heat dissipation space.

[0017] Optionally, in the above-mentioned energy storage box, the heat dissipation component is provided with an air inlet for air intake and an air outlet for air exhaust. Both the air inlet and the air outlet are connected to the heat dissipation space, and the air inlet and the air outlet are located on the same side or different sides of the box body.

[0018] Optionally, in the above-mentioned energy storage box, a partition plate is provided in the heat dissipation space. The partition plate divides the heat dissipation space into one or more guide air ducts, and the two ends of the guide air ducts are connected to the air inlet and the air outlet, respectively.

[0019] Optionally, in the aforementioned energy storage box, the cross-sectional area of ​​the guide air duct gradually decreases or is reduced segment by segment along the direction from the air inlet to the air outlet.

[0020] Optionally, in the above-mentioned energy storage box, the box body includes a box side panel, a box cover and a box bottom plate. The box cover and the box bottom plate are respectively disposed at both ends of the box side panel, and the box bottom plate together with the box cover and the box side panel to form an installation space.

[0021] The heat dissipation components are mounted on the bottom plate of the enclosure, and the heat dissipation space and the installation space exchange heat through the bottom plate of the enclosure.

[0022] Optionally, in the above-mentioned energy storage box, a first sealing assembly is provided between the box cover and the side panel of the box;

[0023] A second sealing assembly is provided between the bottom plate and the side plate of the enclosure.

[0024] Optionally, in the above-mentioned energy storage box, the side panel and the bottom panel of the box are separate structures and are connected by at least one of the following connection methods: adhesive, snap-fit, plug-in and screw-fit.

[0025] Alternatively, the side panels and bottom panel of the enclosure can be a single piece of material, connected by welding.

[0026] An energy storage system includes multiple energy storage modules and multiple energy storage boxes as described above. The energy storage modules are disposed in each energy storage box, and the energy storage boxes are stacked to form at least one battery cluster.

[0027] Optionally, in the above-mentioned energy storage system, a heat exchange fan is provided on the top of the battery cluster for heat exchange of the energy storage box located on the top of the battery cluster.

[0028] Optionally, in the above-mentioned energy storage system, two adjacent energy storage boxes in a battery cluster are respectively a first box and a second box, the first box is located above the second box, and the heat dissipation space of the first box directly exchanges heat or indirectly exchanges heat with the box cover of the second box.

[0029] Optionally, in the above-mentioned energy storage system, one group of battery clusters is the main cluster and the rest are auxiliary clusters. The main cluster is equipped with a switch box for electrical connection with the power conversion system, and the auxiliary clusters are electrically connected to the main cluster.

[0030] The energy storage enclosure disclosed herein includes an enclosure body, a heat dissipation assembly, and a cooling fan. The enclosure body has an installation space for accommodating electronic devices such as energy storage modules. The heat dissipation assembly is mounted on the enclosure body and has a separate heat dissipation space independent of the installation space, which is used for heat exchange with the installation space. The cooling fan is mounted on the heat dissipation assembly and blows air into the heat dissipation space to achieve heat exchange between the heat dissipation space and the external environment. When the cooling fan is activated, the airflow blown by the cooling fan enters the heat dissipation space and exchanges heat with the heat dissipation assembly. The heat dissipation assembly exchanges heat through its connection with the enclosure body, and the enclosure body then exchanges heat with the electronic devices in the installation space, thereby ensuring the operating temperature of the electronic devices in the installation space.

[0031] The energy storage enclosure disclosed herein utilizes individual heat dissipation spaces and cooling fans within each enclosure to ensure optimal heat dissipation performance. Furthermore, the heat dissipation spaces and installation spaces are independent of each other, resulting in a high level of protection. This disclosure can be applied to heat dissipation scenarios for stacked battery clusters, enhancing the environmental adaptability of the energy storage system while maintaining temperature consistency and protection levels across all energy storage enclosure layers.

[0032] The energy storage system disclosed herein includes multiple energy storage modules and multiple energy storage enclosures as described above. Each energy storage module is correspondingly housed within an energy storage enclosure, and the energy storage enclosures are stacked to form at least one battery cluster. Two adjacent energy storage enclosures within a battery cluster are defined as a first enclosure and a second enclosure, respectively. The first enclosure is positioned above the second enclosure, and its heat dissipation space is located on the cover of the second enclosure, enabling heat exchange with the cover. Because it incorporates the aforementioned energy storage enclosures, it also possesses the aforementioned structure and beneficial effects. Other structural details are referenced in related technologies and will not be elaborated upon here.

[0033] After reading and understanding the accompanying diagrams and detailed descriptions, the other aspects can be understood.

[0034] Brief description of the attached figures

[0035] To more clearly illustrate the technical solutions in the embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings, arrows indicate the direction of heat dissipation airflow.

[0036] Figure 1 is a schematic diagram of the structure of the energy storage box disclosed herein;

[0037] Figure 2 is a schematic diagram of the arrangement of electronic devices in the installation space of the energy storage box of this disclosure;

[0038] Figure 3 is a schematic diagram of the structure of the energy storage box disclosed herein;

[0039] Figure 4 is a schematic diagram of the structure of the energy storage box disclosed herein;

[0040] Figure 5 is a schematic diagram of the internal structure of the heat dissipation space of this disclosure;

[0041] Figure 6 is a schematic diagram of the heat dissipation air duct structure of this disclosure;

[0042] Figure 7 is a schematic diagram of the heat dissipation air duct structure of this disclosure (II).

[0043] Figure 8 is a schematic diagram of the heat dissipation duct structure of this disclosure.

[0044] Figure 9 is a schematic diagram of the heat dissipation duct structure of this disclosure;

[0045] Figure 10 is a schematic diagram of the heat dissipation duct structure of this disclosure.

[0046] Figure 11 is a schematic diagram of the heat dissipation air duct structure of this disclosure;

[0047] Figure 12 is a schematic diagram of the adhesive position of the side panel of the box body in this disclosure;

[0048] Figure 13 is a schematic diagram of the welding of the side panel and bottom panel of the box in this disclosure;

[0049] Figure 14 is a schematic diagram of the welding of the side panel and bottom plate of the box in this disclosure.

[0050] Figure 15 is a schematic diagram of the energy storage system disclosed herein;

[0051] Figure 16 is a schematic diagram of the installation of the first and second boxes in the energy storage system of this disclosure;

[0052] Figure 17 is a schematic diagram of the installation of the first and second boxes in the energy storage system disclosed herein.

[0053] Among them, 100 is the energy storage box, 101 is the first box, 102 is the second box, 103 is the first heat dissipation space, 104 is the second heat dissipation space, 110 is the box cover, 120 is the box side panel, 121 is the installation space, 122 is the connection hole, 123 is the glue application position, 124 is the installation step, 130 is the box bottom plate, 131 is the weld, 140 is the first sealing component, and 150 is the second sealing component; 200 is the cooling fan, 210 is the heat dissipation side panel, 211 is the air inlet, 212 is the air outlet, 220 is the heat dissipation mounting plate, 230 is the heat dissipation fins, and 240 is the partition plate; 300 is the electronic component, 310 is the switch box, and 320 is the power conversion system; 400 is the heat exchange fan; and 500 is the base. Detailed Implementation

[0054] The core of this disclosure is to disclose an energy storage enclosure 100, which improves the heat dissipation performance of stacked energy storage modules while ensuring the protection level.

[0055] Another core aspect of this disclosure is the disclosure of an energy storage system that includes the aforementioned energy storage container.

[0056] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the disclosure as set forth in the claims. Additionally, the complete contents of the configurations represented in the embodiments below are not limited to those necessary for the solutions disclosed in the claims. For ease of description, only the parts relevant to the disclosure are shown in the drawings. Unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0057] Referring to Figures 1-3, the energy storage enclosure 100 of this disclosure includes an enclosure body, a heat dissipation component, and a heat dissipation fan 200. The enclosure body has an installation space 121, which is used to accommodate electronic devices 300 such as energy storage modules (cells). The heat dissipation component is disposed on the enclosure body and has a heat dissipation space that is independent of the installation space 121. This heat dissipation space is used to exchange heat with the installation space 121. The heat dissipation fan 200 is disposed on the heat dissipation component and is used to blow air into the heat dissipation space to realize heat exchange between the heat dissipation space and the external environment.

[0058] When the cooling fan 200 is started, the cooling airflow blown out by the cooling fan 200 enters the cooling space and exchanges heat with the cooling components. The cooling components exchange heat with the main body of the cabinet, and the main body of the cabinet exchanges heat with the electronic components 300 in the installation space 121, thereby ensuring the operating temperature of the electronic components in the installation space 121.

[0059] The energy storage enclosure 100 disclosed herein dissipates heat by individually configuring a corresponding heat dissipation space and a cooling fan 200 for each energy storage enclosure 100, ensuring the heat dissipation performance of each individual energy storage enclosure 100. Simultaneously, the heat dissipation space and the installation space 121 are independent of each other, resulting in a high level of protection. This disclosure can be applied to heat dissipation scenarios for stacked battery clusters, improving the environmental adaptability of the energy storage system while ensuring temperature consistency and protection level at each layer of the energy storage enclosure.

[0060] Specifically, referring to Figure 5, the heat dissipation assembly includes a heat dissipation side plate 210 and a heat dissipation mounting plate 220. The heat dissipation mounting plate 220 is connected to the main body of the enclosure (bottom plate 130 of the enclosure). The heat dissipation side plate 210 is arranged around the heat dissipation mounting plate 220 and together with the heat dissipation mounting plate 220, they enclose a heat dissipation space. The heat dissipation fan 200 can be installed on the heat dissipation side plate 210 or the heat dissipation mounting plate 220.

[0061] When the energy storage boxes 100 are stacked, the upper energy storage box 100 among two adjacent energy storage boxes 100 along the stacking direction is defined as the first box 101, and the lower energy storage box 100 is defined as the second box 102. In the above embodiment, the heat dissipation assembly of the first box 101 can cooperate with the cover 110 of the second box 102 to form a sealed heat dissipation space of the first box 101 (except for the air inlet and outlet). At the same time, the heat dissipation space of the first box 101 can also exchange heat with the installation space 121 of the second box 102 through the cover 110 of the second box 102. The heat dissipation assembly disclosed in this embodiment has a simple structure and lower cost.

[0062] Furthermore, the aforementioned heat dissipation mounting plate 220 and the base plate 130 of the enclosure body can be configured as an integral structure or a separate structure. The integral structure solution can simplify assembly and reduce costs. Specifically, both the heat dissipation mounting plate 220 and the base plate 130 can be made of metal, and the main body is plate-shaped. Therefore, they can be manufactured into an integral structure by means of integral forming such as extrusion, rolling, and stamping.

[0063] Meanwhile, when the heat dissipation mounting plate 220 and the bottom plate 130 of the enclosure are set as an integrated structure, since there is no gap between the heat dissipation mounting plate 220 and the bottom plate 130 of the enclosure, the increase in thermal resistance between the installation space 121 and the heat dissipation space caused by the presence of air in the gap is avoided, thereby effectively improving the heat dissipation efficiency of the energy storage enclosure 100.

[0064] The aforementioned heat dissipation side plate 210 and the box body side plate 120 are integral structures to simplify assembly and reduce costs. Specifically, the heat dissipation side plate 210 and the box body side plate 120 can be manufactured into an integral structure by means of extrusion, rolling, stamping, etc. In this embodiment, by adjusting the mounting position of the box body bottom plate 130 on the box body side plate 120, the relative size of the mounting space 121 and the heat dissipation space can be adjusted.

[0065] To enhance heat dissipation, as shown in Figures 3-5, heat dissipation fins 230 are provided on the heat dissipation mounting plate 220, and the heat dissipation fins 230 are disposed within the heat dissipation space to increase the heat exchange area between the heat dissipation mounting plate 220 and the heat exchange airflow, thereby enhancing heat dissipation capacity. When the heat dissipation mounting plate 220 and the bottom plate 130 of the enclosure body are an integral structure, the heat dissipation fins 230 are directly disposed on the bottom plate 130 of the enclosure body.

[0066] The aforementioned heat dissipation fins 230 and heat dissipation mounting plate 220 or chassis bottom plate 130 can be an integral structure or a separate structure. The heat dissipation fins 230 can be welded or bonded to the heat dissipation mounting plate 220 or chassis bottom plate 130. Specifically, the heat dissipation fins 230 can be in various shapes, such as the plate shape shown in Figure 5, or the block shape shown in Figures 4 and 7.

[0067] Referring to Figures 3-5, the heat dissipation component is provided with an air inlet 211 for air intake and an air outlet 212 for air exhaust. Both the air inlet 211 and the air outlet 212 are connected to the heat dissipation space. The air inlet 211 and the air outlet 212 can be directly set on the heat dissipation side plate 210, or the air inlet 211 and the air outlet 212 can be reserved at the connection between the heat dissipation component and the bottom plate 130 of the housing. For example, when the heat dissipation mounting plate 220 and the bottom plate 130 of the housing are an integrated structure, the air inlet 211 and the air outlet 212 can be reserved at the connection between the side plate 120 of the housing and the heat dissipation side plate 210.

[0068] The air inlet 211 and air outlet 212 can be located on the same side or different sides of the enclosure body. Positioning the air inlet 211 and air outlet 212 on opposite sides of the enclosure body effectively drives airflow in the environment surrounding the energy storage enclosure 100, improving heat dissipation. This arrangement effectively prevents the high-temperature airflow blown out from the air outlet 212 after heat exchange from re-entering the heat dissipation space through the air inlet 211, thus ensuring effective heat exchange.

[0069] Referring to Figures 6 and 11, the arrows in the figures indicate the direction of the cooling airflow. The location where the cooling airflow enters the cooling space from the outside is the air inlet 211, and the location where the cooling airflow flows out of the cooling space is the air outlet 212. The cooling fan 200 can be specifically set at the air inlet 211 or the air outlet 212.

[0070] Based on the actual requirements for heat dissipation airflow, one or more cooling fans 200 can be installed on an energy storage box 100. Correspondingly, there can be one or more air inlets 211 or air outlets 212, each corresponding to a cooling fan 200. The positions of the air inlets 211 and air outlets 212 can be adjusted according to actual conditions. For example, Figures 6 and 7 both show an arrangement with one air inlet 211 and two air outlets 212.

[0071] In some embodiments, to ensure sufficient heat exchange between the cooling airflow and the electronic components 300 within the installation space 121, as shown in Figure 6, a partition plate 240 is provided within the cooling space. The partition plate 240 divides the cooling space into one or more guide air ducts, with both ends of the guide air ducts connected to the air inlet 211 and the air outlet 212, respectively. The cooling fan 200 drives the airflow to enter through the air inlet, flow along the guide air ducts, and finally exit through the air outlet 212.

[0072] The partition plate 240 can be specifically installed on the heat dissipation mounting plate 220 or the bottom plate 130 of the enclosure. By reasonably setting the position and number of partition plates 240, the extension length of the guide air duct can be effectively extended, thereby extending the flow time of the heat dissipation airflow in the heat dissipation space and ensuring sufficient heat exchange.

[0073] In some embodiments, the cross-sectional area of ​​the guide duct gradually decreases or is segmentally reduced along the direction from the air inlet 211 to the air outlet 212. Referring to Figures 8 and 9 (D1 > D2 > D3), an arrangement in which the cross-sectional area of ​​the guide duct gradually decreases along the direction from the air inlet 211 to the air outlet 212 is shown. Referring to Figure 10 (D4 > D5 + D6), an arrangement in which the cross-sectional area of ​​the guide duct gradually decreases along the direction from the air inlet 211 to the air outlet 212 is also shown. This arrangement allows the lower-temperature heat dissipation airflow upstream of the guide duct to have a lower flow velocity, enabling sufficient heat exchange with the electronic device 300 within the installation space. Conversely, the higher-temperature heat dissipation airflow downstream of the guide duct has a higher flow velocity, thereby increasing the flow velocity and effectively exchanging heat with the electronic device 300 within the installation space.

[0074] Referring to Figures 7 and 9, when the guide air duct and the heat dissipation fins 230 are set together, the heat dissipation fins 230 are set inside the guide air duct. The specific shape of the heat dissipation fins 230 is not limited, as long as it does not cause blockage of the guide air duct.

[0075] As shown in Figure 9, for the arrangement scheme where the cross-sectional area of ​​the guide air duct gradually decreases, different numbers of heat dissipation plates can be set in different sections of the guide air duct as heat dissipation teeth 230 for heat exchange.

[0076] As shown in Figure 1, the enclosure body includes a side panel 120, a cover 110, and a bottom plate 130. The cover 110 and the bottom plate 130 are respectively located at both ends of the side panel 120, and the bottom plate 130, together with the cover 110 and the side panel 120, forms an installation space 121. Referring to Figures 3 and 4, a heat dissipation component is disposed on the bottom plate 130, and the heat dissipation space and the installation space 121 exchange heat through the bottom plate 130. When stacked, the first heat dissipation space 103 of the first enclosure 101 contacts the cover 110 of the second enclosure 102, and can exchange heat with the installation spaces 121 of both the first enclosure 101 and the second enclosure 102 simultaneously.

[0077] To ensure the protection level of the energy storage enclosure 100, a first sealing component 140 is provided between the enclosure cover 110 and the enclosure side panel 120; a second sealing component 150 is provided between the enclosure bottom plate 130 and the enclosure side panel 120. The first sealing component 140 and the second sealing component 150 are used to respectively achieve a sealed connection between the enclosure side panel 120 and the enclosure cover 110 and the enclosure bottom plate 130, so as to ensure the mutual isolation between the installation space 121 and the heat dissipation space and the outside world, and to ensure that the protection level of the energy storage enclosure 100 meets the design requirements, for example, meeting the dust-tight structural characteristics of IP55 and above.

[0078] The first sealing component 140 and the second sealing component 150 mentioned above can both be implemented by setting a sealing gasket, and the side plate 120 of the box body can be fixed to the box cover 110 and the bottom plate 130 of the box body by bolts.

[0079] In the above embodiments, the bottom plate 130 and the side plate 120 of the enclosure can be a separate structure, and a second sealing component 150 is provided for sealing. When the side plate 120 and the bottom plate 130 of the enclosure are separate structures, the side plate 120 and the bottom plate 130 of the enclosure can be connected by at least one of the following connection methods: adhesive, screw, snap-fit, plug-in. Taking adhesive bonding as an example, referring to Figure 12, an installation step 124 is provided on the inner wall of the side panel 120 of the housing. During the assembly process, adhesive is applied to at least one of the installation step 124 and the bottom plate 130 of the housing. Figure 12 shows the technical solution of applying adhesive to the installation step 124, and the adhesive application position 123 is arranged around the entire circle of the connection between the installation step 124 and the bottom plate 130 of the housing to ensure a reliable connection between the side panel 120 and the bottom plate 130 of the housing. When the installation step 124 and the bottom plate 130 of the housing are connected by a combination of adhesive bonding and screwing, corresponding connecting holes 122 are provided on the installation step 124 and the bottom plate 130 of the housing for bolts and other connecting parts to pass through. Referring to Figure 12, the adhesive application position 123 is arranged to avoid the location of the connecting hole 122 to avoid affecting the passage of the connecting parts. The connecting hole 122 can be set in the inner circle or the outer circle of the adhesive application position 123. This embodiment of the present disclosure does not limit this. In addition, the connection holes 122 can be set asymmetrically on the mounting steps 124 and the bottom plate 130 of the housing to prevent mistaken identity.

[0080] The aforementioned side panel 120 and bottom panel 130 can be configured as an integral structure. For example, the side panel 120 and bottom panel 130 can be connected by welding, which eliminates the need for the second sealing assembly 150. For instance, referring to Figure 13, an installation step 124 is provided on the inner wall of the side panel 120. The bottom panel 130 is positioned and welded to the installation step 124. Figure 14 shows the weld 131 after friction welding of the side panel 120 and bottom panel 130. The installation step 124 and side panel 120 can be an integral or separate structure; this embodiment does not limit this.

[0081] Within the installation space, the electronic device 300 is placed on the base plate 130 of the enclosure. The heat of the electronic device 300 is exchanged with the heat dissipation airflow within the heat dissipation space through conduction via the base plate 130. The electronic device 300 and the base plate 130 can be in direct contact. In some embodiments, to enhance the thermal conductivity between the electronic device 300 and the base plate 130, flexible or rigid materials such as thermal pads or thermal adhesives are provided on the base plate 130 as a thermally conductive structural layer to enhance the thermal conductivity.

[0082] Referring to Figures 15-17, the energy storage system disclosed herein includes multiple energy storage modules and multiple energy storage boxes 100 as described above. The energy storage modules are respectively disposed in each energy storage box 100, and the energy storage boxes 100 are stacked to form at least one battery cluster.

[0083] Because it has the aforementioned energy storage box 100, it also has the aforementioned structure and beneficial effects. Other structures are described in detail here, referring to relevant technologies.

[0084] In a group of battery clusters, two adjacent energy storage boxes 100 are defined as a first box 101 and a second box 102, respectively. The first box 101 is located above the second box 102, and the heat dissipation space of the first box 101 is located on the box cover 110 of the second box 102, and can directly or indirectly exchange heat with the box cover 110 of the second box 102. Specifically, along the stacking direction, when the bottom of the heat dissipation space of the first housing 101 is an open structure as shown in Figure 5, it directly contacts the cover 110 of the second housing 102. In this case, the heat dissipation space of the first housing 101 can directly exchange heat with the cover 110 of the second housing 102. Along the stacking direction, when the bottom of the heat dissipation space of the first housing 101 is a closed structure, i.e., the aforementioned energy storage housing 100 scheme where the heat dissipation space is a sealed space except for the air inlet and outlet, the heat dissipation space of the first housing 101 indirectly contacts the cover 110 of the second housing 102. In this case, the heat dissipation space of the first housing 101 indirectly exchanges heat with the cover 110 of the second housing 102. The energy storage housing 100 with an open bottom structure for the heat dissipation space uses less material, has lower cost, and a simpler manufacturing process.

[0085] Referring to Figure 15, in some embodiments, multiple energy storage boxes 100 of the energy storage system are stacked to form multiple battery clusters, one of which is the main cluster and the others are auxiliary clusters. Each battery cluster is mounted on a base 500, and a switch box 310 is mounted on the main cluster. The switch box 310 is electrically connected to the power conversion system 320 (PCS), and the auxiliary clusters are electrically connected to the main cluster. Each energy storage box 100 on each battery cluster can exchange heat with the external environment, exhibiting strong environmental adaptability and ensuring temperature consistency within the installation space 121 of different layers of energy storage boxes 100 on the battery cluster. Simultaneously, the installation space 121 of each energy storage box 100 is independent of the heat dissipation space and the outside environment, ensuring both heat dissipation efficiency and protection level.

[0086] In addition to the energy storage box 100 located at the top of the battery cluster, heat dissipation spaces are arranged above and below the installation spaces 121 of the other energy storage boxes 100. Referring to Figure 17, the top of the installation space 121 of the second box 102 can exchange heat with the first heat dissipation space 103 of the first box 101, and the bottom can exchange heat with the second heat dissipation space 104 of the second box 102. Therefore, in order to ensure the heat dissipation effect of the energy storage box 100 located at the top of the battery cluster, a heat exchange fan 400 is provided at the top of each battery cluster for exchanging heat with the energy storage box 100 located at the top of the battery cluster.

[0087] As shown in Figure 15, the heat exchange fan 400 of the main cluster can be installed on the switch box 310 to simultaneously exchange heat with the switch box 310.

[0088] The above description of the disclosed embodiments enables those skilled in the art to make or use this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment without being explicitly excluded by another embodiment. Therefore, this disclosure is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy storage enclosure, comprising: The housing body has an installation space (121); A heat dissipation component is disposed on the housing body and has a heat dissipation space independent of the installation space (121), wherein the heat dissipation space exchanges heat with the installation space (121); A cooling fan (200) is disposed on the heat dissipation assembly and configured to blow air into the heat dissipation space.

2. The energy storage box as described in claim 1, wherein, The heat dissipation assembly includes a heat dissipation side plate (210) and a heat dissipation mounting plate (220). The heat dissipation mounting plate (220) is connected to the housing body. The heat dissipation side plate (210) is arranged around the heat dissipation mounting plate (220) and together with the heat dissipation mounting plate (220) forms the heat dissipation space. The cooling fan (200) is mounted on the heat dissipation side plate (210) or the heat dissipation mounting plate (220).

3. The energy storage tank as described in claim 2, wherein, The heat dissipation mounting plate (220) and the bottom plate (130) of the box body are integrally formed into a single structure.

4. The energy storage tank as described in claim 2 or 3, wherein, The heat dissipation side plate (210) and the box body side plate (120) of the box body are integrally formed into a single structure.

5. The energy storage tank as described in any one of claims 2-4, wherein, The heat dissipation mounting plate (220) is provided with heat dissipation teeth (230), and the heat dissipation teeth (230) are disposed within the heat dissipation space.

6. The energy storage tank as described in any one of claims 1-5, wherein, The heat dissipation assembly is provided with an air inlet (211) configured for air intake and an air outlet (212) configured for air exhaust. Both the air inlet (211) and the air outlet (212) are connected to the heat dissipation space, and the air inlet (211) and the air outlet (212) are located on the same side or different sides of the housing body.

7. The energy storage tank as described in claim 6, wherein, A partition plate (240) is provided in the heat dissipation space. The partition plate (240) divides the heat dissipation space into one or more guide air ducts. The two ends of the guide air ducts are respectively connected to the air inlet (211) and the air outlet (212).

8. The energy storage tank as described in claim 7, wherein, Along the direction from the air inlet (211) to the air outlet (212), the cross-sectional area of ​​the guide duct gradually decreases or decreases segment by segment.

9. The energy storage tank as described in any one of claims 1-8, wherein, The box body includes a box side panel (120), a box cover (110), and a box bottom plate (130). The box cover (110) and the box bottom plate (130) are respectively disposed at both ends of the box side panel (120), and the box bottom plate (130), the box cover (110), and the box side panel (120) together enclose the installation space (121). The heat dissipation component is disposed on the bottom plate (130) of the housing, and the heat dissipation space and the installation space (121) exchange heat through the bottom plate (130).

10. The energy storage box as described in claim 9, wherein, A first sealing assembly (140) is provided between the box cover (110) and the box body side panel (120); A second sealing assembly (150) is provided between the bottom plate (130) and the side plate (120) of the box.

11. The energy storage tank as described in claim 9 or 10, wherein, The side panel (120) and the bottom panel (130) of the box are separate structures and are connected by at least one of the following connection methods: adhesive, snap-fit, plug-in and screw-fit. Alternatively, the side panel (120) and the bottom panel (130) of the enclosure are an integral structure and are connected by welding.

12. An energy storage system comprising a plurality of energy storage modules and a plurality of energy storage boxes as described in any one of claims 1-11, wherein the energy storage modules are disposed in each of the energy storage boxes, and the energy storage boxes are stacked and arranged to form at least one battery cluster.

13. The energy storage system of claim 12, wherein, The top of the battery cluster is provided with a heat exchange fan (400) configured to exchange heat with the energy storage box located on top of the battery cluster.

14. The energy storage system as described in claim 12 or 13, wherein, In a group of battery clusters, two adjacent energy storage boxes are a first box (101) and a second box (102), respectively. The first box (101) is located above the second box (102), and the heat dissipation space of the first box (101) directly exchanges heat or indirectly exchanges heat with the box cover (110) of the second box (102).

15. The energy storage system according to any one of claims 12-14, wherein, One group of the battery clusters is the main cluster, and the rest are auxiliary clusters. The main cluster is provided with a switch box (310) configured to be electrically connected to the power conversion system (320). The auxiliary clusters are electrically connected to the main cluster.

Images