Heat dissipation system of energy storage container and switch box

Abstract

The utility model discloses a heat dissipation system of an energy storage container and switch boxes, the heat dissipation system comprises a switch box cabin and a plurality of switch boxes arranged in the switch box cabin, the switch box cabin is provided with a containing cavity defined by a plurality of enclosure plates, the containing cavity is provided with a heat dissipation air channel, an air inlet and an air outlet, the air inlet and the air outlet are communicated with the heat dissipation air channel, and the switch boxes are arranged in the heat dissipation air channel. The switch box cabin is provided with a heat dissipation fan used for providing power for flowing of air flow in the heat dissipation air channel. According to the heat dissipation system of the switch box in the energy storage container, only the heat dissipation fan needs to be configured for the whole heat dissipation air channel, a built-in fan does not need to be arranged in each switch box, the structural complexity of the heat dissipation system of the switch box is greatly reduced, the heat dissipation fan is located outside the switch box, installation and maintenance are more convenient, and the heat dissipation efficiency is improved. And the installation and maintenance cost can be reduced.

Description

Technical Field

[0001] This application relates to the field of heat dissipation technology for switch boxes, and more specifically, to a heat dissipation system for an energy storage container and a switch box. Background Technology

[0002] In energy storage systems, the switch box, as a key component within the energy storage container, generates significant heat due to the high-intensity current acting on its internal electrical components. Currently, a common cooling system for switch boxes involves incorporating a built-in fan to create forced convection within the box, thus enhancing heat dissipation. However, this solution requires installing a cooling fan in each switch box, increasing both the structural complexity and installation / maintenance costs of the cooling system.

[0003] In summary, how to solve the problems of complex structure and high installation and maintenance costs of the heat dissipation system of the switch box inside the energy storage container has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, this application provides a heat dissipation system for an energy storage container and a switch box to solve the problems of complex structure and high installation and maintenance costs of the heat dissipation system for the switch box inside the energy storage container.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] An energy storage container includes a switch box compartment and a switch box disposed within the switch box compartment. The switch box compartment has a receiving cavity formed by multiple enclosure plates. The receiving cavity has a heat dissipation duct and an air inlet and an air outlet communicating with the heat dissipation duct. The switch box is disposed within the heat dissipation duct. The switch box compartment is provided with a heat dissipation fan for providing power for the airflow within the heat dissipation duct.

[0007] In some embodiments of this application, the energy storage container is further provided with an electrical compartment, which is equipped with a heat exchanger. The switch box compartment is arranged adjacent to the electrical compartment, and the air inlet is located on the side of the switch box compartment adjacent to the electrical compartment.

[0008] In some embodiments of this application, the air inlet and the air outlet are located on the same side of the switch box compartment, and both are connected to the electrical compartment.

[0009] In some embodiments of this application, a partition is provided inside the switch box compartment. The partition extends from the side near the electrical compartment to the side away from the electrical compartment to divide the heat dissipation air duct into an air inlet air duct and a return air duct. The air inlet is connected to the air inlet air duct, and the air outlet is connected to the return air duct. A connecting port is provided on the partition for connecting the air inlet air duct and the return air duct.

[0010] In some embodiments of this application, the communication port is located on the side of the partition away from the electrical compartment.

[0011] In some embodiments of this application, the switch box is disposed in the air inlet duct; and / or, the switch box is disposed in the air return duct.

[0012] In some embodiments of this application, the air inlet and the air outlet are located on opposite sides of the switch box compartment, and both are able to communicate with the external environment of the energy storage container.

[0013] In some embodiments of this application, the energy storage container further includes an extended air duct that runs through the electrical compartment but is not interconnected with the electrical compartment. One end of the extended air duct is connected to the air inlet, and the other end of the extended air duct is connected to the external environment of the energy storage container.

[0014] In some embodiments of this application, the enclosing plate surrounding the bottom surface of the receiving cavity is an enclosing base plate. The enclosing base plate has a cavity, and one end of the cavity is provided with an opening communicating with the air inlet. The switch box is disposed above the enclosing base plate and has a preset distance from the enclosing base plate. The side of the enclosing base plate facing the switch box is provided with a plurality of ventilation openings communicating with the cavity.

[0015] In some embodiments of this application, the energy storage container further includes an air guide plate disposed within the accommodating cavity, with one end of the air guide plate disposed at the air inlet and the other end disposed at the opening, for guiding the airflow from the air inlet to the cavity.

[0016] In some embodiments of this application, the vents are arranged corresponding to electrical components within the switch box; wherein, one vent corresponds to at least one electrical component.

[0017] In some embodiments of this application, there are multiple switch boxes, which are arranged sequentially along the length of the energy storage container within the receiving cavity. A heat dissipation gap is formed between the switch boxes and the inner wall of the receiving cavity, and the heat dissipation gap is used for the airflow of the heat dissipation duct to pass through.

[0018] In some embodiments of this application, the energy storage container further includes a battery compartment and a temperature control compartment. The battery compartment is used to load battery modules, and the temperature control compartment is used to load liquid cooling equipment. The liquid cooling equipment is connected to the heat exchanger through a liquid cooling circulation pipeline.

[0019] Wherein, the switch box compartment and the battery compartment are arranged adjacent to each other in a first direction; and / or, the temperature control compartment and the electrical compartment are arranged adjacent to each other in a first direction.

[0020] To address the issues of complex structure and high manufacturing and maintenance costs in the heat dissipation system of switch boxes within energy storage containers, this application provides an energy storage container, including a switch box compartment and multiple switch boxes disposed within the compartment. The switch box compartment has a receiving cavity formed by multiple enclosing plates, and the receiving cavity has a heat dissipation duct and an air inlet and an air outlet communicating with the heat dissipation duct. The switch boxes are disposed within the heat dissipation duct, and the switch box compartment is equipped with a heat dissipation fan for providing power for the airflow within the heat dissipation duct. In practical applications, this energy storage container, by activating the cooling fans, allows airflow from the cold air environment to enter the cooling duct through the air inlet, then flow along the duct to the air outlet, and finally return to the cold air environment. This ensures a continuous flow of cold air within the cooling duct. Since the switch boxes are located within the cooling duct, the cold airflow passes through them, forcibly cooling the switch box body. The electrical components within the switch box transfer their heat to the box body, where it is carried away by the cold air, ultimately meeting the heat dissipation requirements of the electrical components. Because the cooling system for the switch boxes within this energy storage container only requires cooling fans for the entire cooling duct, eliminating the need for built-in fans inside each switch box, the structural complexity of the cooling system for the switch boxes within the energy storage container is greatly reduced. Furthermore, the cooling fans are located externally to the switch boxes, making installation and maintenance more convenient and helping to reduce installation and maintenance costs.

[0021] This application also provides a heat dissipation system for a switch box, including a switch box compartment and multiple switch boxes disposed within the compartment. The switch box compartment has a receiving cavity formed by multiple enclosing plates, and the receiving cavity has a heat dissipation duct and an air inlet and an air outlet communicating with the heat dissipation duct. The switch boxes are disposed within the heat dissipation duct, and the switch box compartment is equipped with a heat dissipation fan for providing power for the airflow within the heat dissipation duct. Compared with existing switch box heat dissipation systems, this system allows the switch boxes to be disposed within the heat dissipation duct inside the compartment, requiring only a heat dissipation fan for the entire duct, eliminating the need for a separate fan for each switch box. This makes the arrangement of related components within the switch box more convenient, helps reduce the overall cost of the heat dissipation system, and, since the heat dissipation fan is located outside the switch box, installation and maintenance are more convenient, further reducing installation and maintenance costs.

[0022] The technical features mentioned above, those to be mentioned below, and those shown individually in the accompanying drawings can be combined arbitrarily, provided that the combined technical features are not contradictory. All feasible combinations of features are the technical content explicitly described herein. Any one of the multiple sub-features contained in the same statement can be applied independently, without necessarily being applied together with other sub-features. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of an isometric structure of an energy storage container provided in an embodiment of this application;

[0025] Figure 2 A schematic diagram of the heat dissipation air duct structure when the air inlet / outlet is located on the same side of the switch box compartment, as provided in the embodiments of this application;

[0026] Figure 3 A schematic diagram of the structure in which airflow flows from the air intake collection cavity to the receiving cavity side when the switch box compartment is integrated into the frame according to an embodiment of this application;

[0027] Figure 4 A schematic diagram of a frame with ventilation holes provided in an embodiment of this application;

[0028] Figure 5 A schematic diagram of the structure of the air inlet with a guide plate provided in the embodiment of this application;

[0029] Figure 6 A schematic diagram of an isometric structure of an energy storage container provided in an embodiment of this application;

[0030] Figure 7 A schematic diagram of the heat dissipation air duct structure when the air inlet / outlet is located on the opposite side of the switch box compartment, as provided in the embodiments of this application;

[0031] Figure 8 A schematic diagram of a structure providing a heat dissipation gap between the switch box and the receiving cavity according to an embodiment of this application;

[0032] Figure 9 A schematic diagram of the structure in which electrical components inside a switch box are connected and transfer heat through an insulating and heat-conducting layer, as provided in an embodiment of this application.

[0033] Figure 10 A schematic diagram of the structure of the switch box with heat dissipation fins on the outer wall provided in the embodiment of this application.

[0034] in, Figures 1-10 middle:

[0035] 1-Switchbox compartment;

[0036] 10-Switch box;

[0037] 100 - Heat dissipation fins;

[0038] 101 - Box body;

[0039] 102-Electrical components;

[0040] 103 - Insulating and thermally conductive layer;

[0041] 11-Receiving cavity;

[0042] 110 - Enclosing base plate;

[0043] 111 - Cavity;

[0044] 112 - Ventilation opening;

[0045] 12-Heat dissipation airflow;

[0046] 12a - Air inlet;

[0047] 12b - Air outlet;

[0048] 121 - Air intake duct;

[0049] 122 - Return air duct;

[0050] 123 - Air guide plate;

[0051] 13-Cooling fan;

[0052] 131-First Wind Turbine;

[0053] 132-Second Fan

[0054] 14-Partition;

[0055] 140 - Connector;

[0056] 15 - Heat dissipation gap;

[0057] 2-Electrical compartment;

[0058] 21-Air inlet opening;

[0059] 3-Battery compartment;

[0060] 4-Liquid-cooled unit compartment;

[0061] 5. Airflow path. Detailed Implementation

[0062] The core of this application is to provide a heat dissipation system for an energy storage container and a switch box, so as to solve the problems of complex structure and high installation and maintenance costs of the heat dissipation system of the switch box inside the energy storage container.

[0063] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0064] With the widespread application of energy storage technology in electric vehicles, photovoltaic / wind power storage, and renewable energy, the continuous increase in system energy density places higher demands on the effective utilization of space resources and the thermal management of electrical components. In energy storage systems, the switch box, as a key component installed within the energy storage container, generates significant heat under high-intensity current. Traditional natural heat dissipation methods are inefficient, especially during high-load system operation, making it difficult to effectively remove accumulated heat. This not only leads to decreased equipment performance stability but may also accelerate component aging and shorten the overall lifespan of the energy storage system. To address this issue, a common heat dissipation system for switch boxes involves designing built-in fans inside the switch box to create forced convection and enhance heat dissipation. However, this solution requires additional cooling fans to be installed in each switch box, increasing both the structural complexity of the heat dissipation system and its installation and maintenance costs.

[0065] Based on this, one aspect of the embodiments of this application is to provide an energy storage container to solve the problems of complex structure and high installation and maintenance costs of the heat dissipation system of the switch box inside the energy storage container.

[0066] Specifically, refer to Figure 1 and Figure 2 As shown, the energy storage container specifically includes a switch box compartment 1 and multiple switch boxes 10 disposed within the switch box compartment 1. The switch box compartment 1 has a receiving cavity 11 formed by multiple enclosing plates. The receiving cavity 11 has a heat dissipation duct 12 and an air inlet 12a and an air outlet 12b connected to the heat dissipation duct 12. Both the air inlet 12a and the air outlet 12b are connected to the cold airflow environment. The switch boxes 10 are disposed within the heat dissipation duct 12.

[0067] For example, the cold airflow environment can be the external ambient airflow, the cold airflow environment of other equipment inside the energy storage container (such as the electrical compartment 2 mentioned in the following embodiment), or other equipment outside the energy storage container that has a cold airflow environment, without being specifically limited here.

[0068] Additionally, refer to Figure 2 As shown, the switch box compartment 1 is also equipped with a cooling fan 13. The main function of the cooling fan 13 is to provide power for the airflow within the cooling duct 12. The cooling fan 13 can be installed at the air inlet 12a of the cooling duct 12, at the air outlet 12b of the cooling duct 12, or inside the cooling duct 12, as long as it can guide the airflow at the air inlet 12a along the airflow path 5 of the cooling duct 12 to the air outlet 12b. In addition, the specific form of the cooling fan 13 can be, but is not limited to, a variable frequency fan. A variable frequency fan can automatically adjust its operating frequency according to the heat dissipation requirements, thereby reducing the operating cost of the heat dissipation system. Of course, other types of fans can also be used, and no specific limitation is made here.

[0069] For example, the switch box compartment 1 can be a receiving cavity 11 formed by multiple enclosing panels, which can be installed into the energy storage container later. This type of switch box compartment 1 is more convenient for assembly line production. After production, it is assembled into the energy storage container, making manufacturing, installation and maintenance more convenient. Of course, it can be understood that the switch box compartment 1 can also be a receiving cavity 11 formed by partitions within the energy storage container. By designing it into this structural form, the inner wall of the energy storage container can be fully utilized, which can save the material and number of enclosing panels to a certain extent and help reduce costs.

[0070] In practical applications, the energy storage container, by activating the cooling fan 13, allows the airflow from the cold air environment to enter the cooling duct 12 through the air inlet 12a, then flow along the cooling duct 12 to the air outlet 12b, and then return to the cold air environment from the air outlet 12a. This ensures that cold air flows continuously through the cooling duct 12. Since the switch box 10 is located within the cooling duct 12, the cold air flowing within the cooling duct 12 passes through the switch box 10. Consequently, the cold air can force-cool the body 101 of the switch box 10, and the electrical components 102 within the switch box 10 can transfer their heat to the body 101 of the switch box 10, where it is carried away by the cold air, ultimately meeting the heat dissipation requirements of the electrical components 102 within the switch box 10. Because the heat dissipation system of the switch box 10 inside the energy storage container only needs to be equipped with a heat dissipation fan for the entire heat dissipation duct 12, there is no need to install a built-in fan inside each switch box 10, which greatly reduces the structural complexity of the heat dissipation system of the switch box 10 inside the energy storage container. Furthermore, the heat dissipation fan 13 is located outside the switch box 10, making installation and maintenance more convenient and helping to reduce installation and maintenance costs.

[0071] In addition, since there is no need to install a built-in fan inside the switch box 10, more space can be saved, and more electrical components 102 can be installed in this space. Furthermore, when the energy storage container has multiple switch boxes 10, the above-mentioned heat dissipation system can improve the temperature uniformity of each switch box 10, achieving efficient and low-cost heat dissipation within a limited space.

[0072] In some specific implementation plans, refer to Figure 1 and 2 As shown, the aforementioned energy storage container can house an electrical compartment 2, which is equipped with a heat exchanger (such as an air-water heat exchanger). This heat exchanger is primarily used to cool the electrical compartment 2, ensuring that the electrical equipment installed within it maintains a suitable operating temperature. The switch box compartment 1 is arranged adjacent to the electrical compartment 2. For ease of description, refer to... Figure 1 The height direction of the energy storage container is defined as the first direction, and the length direction as the second direction. Specifically, the switch box compartment 1 and the electrical compartment 2 are arranged adjacent to each other in the second direction. The air inlet 12a is located on the side adjacent to the switch box compartment 1 and the electrical compartment 2. Since the electrical compartment 2 is equipped with a heat exchanger for heat dissipation, the airflow temperature inside the electrical compartment 2 is relatively low. The placement of the air inlet 12a adjacent to the electrical compartment 2 helps to reduce the temperature of the cold airflow introduced by the air inlet 12a, thereby improving the heat dissipation effect of the cold airflow on the switch box 10 installed in the heat dissipation duct 12.

[0073] For example, the air inlet 12a can be located on one side of the electrical compartment 2 but not connected to or passing through the electrical compartment 2. This solution is not illustrated in the accompanying drawings, but it does not affect the understanding of the solution by those skilled in the art. For example, the airflow entering the heat dissipation duct 12 from the air inlet 12a flows through the outer wall of the electrical compartment 2 and forms a heat exchange with the airflow introduced by the air inlet 12a through the outer wall of the electrical compartment 2, thereby reducing the temperature of the cold airflow introduced into the heat dissipation duct 12 from the air inlet 12a and improving the heat dissipation effect of the switch box 10 installed in the heat dissipation duct 12.

[0074] For example, refer to Figure 2 As shown, the air inlet 12a and air outlet 12b can be specifically located on the same side of the switch box compartment 1, and both are connected to the electrical compartment 2. The airflow environment within the electrical compartment 2 then constitutes the cold airflow environment connected by the air inlet 12a and air outlet 12b, which is maintained by the heat exchanger of the electrical compartment 2. This design ensures the stability of the cold airflow environment, thereby guaranteeing the heat dissipation efficiency of the switch box 10. Furthermore, since both the air inlet 12a and air outlet 12b are connected to the electrical compartment 2, the switch box compartment 1 and the electrical compartment 2 form an internal circulation system, eliminating the need for connection to the external environment and improving the protection level of the energy storage container. For example, this structure can adapt to harsh environments such as sandstorms.

[0075] In addition, since the air inlet 12a and the air outlet 12b are located on the same side of the switch box compartment 1, it is more convenient to maintain the cooling fan 13 in the future when the cooling fan 13 is located at the air inlet 12a and / or the air outlet 12b.

[0076] Furthermore, since both the air inlet 12a and the air outlet 12b are connected to the electrical compartment 2, i.e., internal circulation, their corresponding air inlets and outlets do not need to be connected to the external environment. At this time, the design of the air inlet and outlet on the back side of the energy storage container does not need to be considered, and the two energy storage containers can be placed back to back to improve the energy density of the power station.

[0077] In a further implementation plan, refer to Figure 2 As shown, a partition 14 can also be provided inside the switch box compartment 1. This partition 14 extends from the side near the electrical compartment 2 to the side away from the electrical compartment 2 to divide the heat dissipation air duct 12 into an air inlet duct 121 and a return air duct 122. The air inlet 12a is connected to the air inlet duct 121, and the air outlet 12b is connected to the return air duct 122. A connecting port 140 is provided on the partition 14 for connecting the air inlet duct 121 and the return air duct 122. Figure 2The hollow arrows in the diagram represent the airflow path. By designing the air inlet duct 121 and return duct 122 in this structural form, when the air inlet 12a and air outlet 12b are located on the same side of the switch box compartment 1, a smoother airflow structure can be formed, which helps to reduce dead airflow angles. Specifically, the partition 14 can be designed to extend along the second direction and divide the heat dissipation duct 12 into an air inlet duct 121 and a return air duct 122 distributed along a third direction (i.e., the width direction of the energy storage container) (i.e., the air inlet duct 121 and the return air duct 122 are distributed front to back); alternatively, the partition 14 can be designed to extend along the second direction and divide the heat dissipation duct 12 into an air inlet duct 121 and a return air duct 122 distributed along the first direction (i.e., the height direction of the energy storage container) (i.e., the air inlet duct 121 and the return air duct 122 are distributed vertically). In practical applications, the arrangement can be selected according to the specific layout of the electrical compartment 2 and the switch box compartment 1, and no specific limitation is made here. It is worth mentioning that the terms "upper," "lower," "front," and "rear" in this article are all defined based on the user's view of the front of the energy storage container.

[0078] It should be noted that the number of the above-mentioned connecting ports 140 can be one or more, and the arrangement position can be selected according to actual needs. For example, the connecting port 140 can be arranged on the side of the partition 14 away from the electrical compartment 2. This design can better avoid the airflow dead zone in the airflow path 5 of the heat dissipation duct 12. Alternatively, there can be multiple connecting ports 140, which are arranged sequentially at intervals on the partition 14 along the extension direction of the partition 14 (that is, the direction in which the partition 14 extends from the side close to the electrical compartment 2 to the side away from the electrical compartment 2, or along the second direction, or the length direction of the energy storage container).

[0079] It should also be noted that, according to Figure 2To understand this, the switch box 10 can be specifically installed in the air inlet duct 121; it can also be installed in the air return duct 122; or both the air inlet duct 121 and the air return duct 122 can have switch boxes 10 installed. Installing the switch box 10 in the air inlet duct 121 allows the cold airflow entering the air inlet duct 121 from the air inlet 12a to preferentially flow through the switch box 10 and exchange heat with it, resulting in a relatively low airflow temperature. Installing the switch box 10 in the air return duct 122 allows the cold airflow entering the air inlet duct 121 from the air inlet 12a to first gather in the air inlet duct 121 to form a buffer chamber, thereby making the airflow temperature flowing into the air return duct 122 relatively stable and improving the continuity of airflow supply. Installing the switch box 10 in both the air inlet duct 121 and the air return duct 122 allows for the arrangement of more switch boxes 10 and alleviates space constraints. In practical applications, the layout can be selected according to actual needs, and no specific restrictions are made here.

[0080] Reference Figure 7 Combination Figure 1 As shown, when the air inlet 12a is located on the side adjacent to the switch box compartment 1 and the electrical compartment 2, the air inlet 12a and the air outlet 12b can also be located on opposite sides of the switch box compartment 1, and both can be connected to the external environment of the energy storage container. At that time, the external environment of the energy storage container constitutes the cold airflow environment connected by the air inlets 12a and the air outlets 12b. By designing this structural form, the airflow path 5 is roughly straight, and the airflow is more fluid. Compared with the air inlet 12a and the air outlet 12b being located on the same side of the switch box compartment 1, the airflow path 5 can be shortened, which helps to improve heat dissipation efficiency. In addition, for the energy storage system, there is no need to consider the design of the air inlet and outlet on the back side of the energy storage container, so that two energy storage containers can be placed back to back, thereby increasing the energy density of the power station.

[0081] In a further implementation plan, refer to Figure 6 The aforementioned energy storage container may also include an extended air duct 21 that runs through the electrical compartment 2 but is not interconnected with it. One end of the extended air duct 21 is connected to the air inlet 12a, and the other end of the extended air duct 21 is connected to the external environment of the energy storage container. By designing it in this way, the airflow from the external environment will exchange heat with the cold airflow inside the electrical compartment 2 through the outer wall of the extended air duct 21. When the temperature of the airflow from the external environment is relatively high, the cold airflow inside the electrical compartment 2 can cool it, thereby improving the heat dissipation capacity of the heat dissipation air duct 12. When the temperature of the cold airflow inside the electrical compartment 2 is high, the airflow from the external environment can also cool the cold airflow inside the electrical compartment 2, thereby improving the heat dissipation capacity of the electrical compartment 2.

[0082] In some other specific embodiments, the aforementioned air inlet 12a may be connected to the electrical compartment 2, which has an air inlet opening that connects to the external environment of the energy storage container. This embodiment does not provide accompanying drawings, but this does not affect the understanding of the solution by those skilled in the art. With this design, the airflow from the external environment first enters the electrical compartment 2, undergoes heat exchange, and then enters the heat dissipation duct 12. For example, a ventilation opening is provided on the side wall of the electrical compartment 2 near the air inlet 12a, and this ventilation opening is connected to the air inlet 12a. An air inlet opening is provided on the side wall of the electrical compartment 2 away from the air inlet 12a. The airflow from the external environment enters the electrical compartment 2 through the air inlet opening, undergoes heat exchange, and then flows into the air inlet 12a through the ventilation opening, thereby introducing the airflow from the external environment into the heat dissipation duct 12.

[0083] This structural form is suitable for situations where the electrical compartment 2 does not need to meet sealing requirements. It allows the airflow inside the electrical compartment 2 to be continuously renewed. Similarly, when the airflow temperature in the external environment is relatively high, the cold airflow inside the electrical compartment 2 can cool it, thereby improving the heat dissipation capacity of the heat dissipation duct 12. When the temperature of the cold airflow inside the electrical compartment 2 is high, it can also be cooled by the airflow in the external environment, thereby improving the heat dissipation capacity of the electrical compartment 2.

[0084] In some specific implementation plans, refer to Figure 1 Combination Figures 3-5 As shown, the enclosing plate surrounding the bottom surface of the receiving cavity 11 is an enclosing base plate 110. The enclosing base plate 110 has a cavity 111, and one end of the cavity 111 is provided with an opening communicating with the air inlet 12a. The switch box 10 is disposed above the enclosing base plate 110 and has a preset distance from the enclosing base plate 110. The side of the enclosing base plate 110 facing the switch box 10 is provided with multiple ventilation openings 112 communicating with the cavity 111. By designing this structural form, the incoming cold airflow can be gathered by the cavity 111, reducing airflow resistance. At the same time, since the side of the enclosing base plate 110 facing the switch box 10 is provided with multiple ventilation openings 112 communicating with the cavity 111, the cold airflow is introduced into the heat dissipation air duct 12 where the switch box 10 is located through the ventilation openings 112, thereby cooling the switch box 10. The preset distance between the switch box 10 and the enclosure base plate 110 is mainly used to form an airflow path. In addition, the connected object of the air outlet 12b is related to the connected object of the air inlet 12a. For example, when the air inlet 12a is connected to the electrical compartment 2, the air outlet 12b is also connected to the electrical compartment 2. When the air inlet 12a is connected to the external environment, the air outlet 12b is also connected to the external environment.

[0085] For example, the aforementioned enclosing floor plate 110 can be part of the frame structure of the energy storage container. For instance, the switch box compartment 1 can be designed as an integrated structure with the frame. Specifically, the enclosing floor plate 110 can be located on the bottom frame or the top frame of the energy storage container, where the bottom frame and the top frame are two opposing frames along the second direction. In practical applications, the arrangement can be selected according to the location of the switch box compartment 1 within the energy storage container, without further specific limitations.

[0086] When the enclosing bottom plate 110 serves as part of the frame beam structure of the energy storage container, the position of the cavity 111 relative to the air inlet 12a will be offset in the first direction. Therefore, the air inlet 12a can be connected to the cavity 111 through the air guide plate 123. The air guide plate 123 can be set inside the receiving cavity 11, with one end of the air guide plate 123 set at the air inlet 12a and the other end set at the opening of the cavity 111, and can guide the airflow of the air inlet 12a to the cavity 111.

[0087] In a further implementation plan, refer to Figure 3 , Figure 4 and Figure 9 As shown, the aforementioned switch box 10 may specifically include a box body 101 and electrical components 102 disposed within the box body 101. The box body 101 may be designed with its upper and lower covers and / or sides made of a metal material with good heat dissipation characteristics to improve the heat transfer between the electrical components 102 and the box body 101. Furthermore, the electrical components 102 may be designed on the inner wall of the box body 101 near the ventilation opening 112, so that the airflow introduced by the ventilation opening 112 can directly blow onto the box wall where the electrical components 102 are located, helping to improve the heat dissipation efficiency of the electrical components. It is worth mentioning that the aforementioned electrical components 102 may be, but are not limited to, high-power components, such as aR fuses (positive fast fuses), pV fuses (negative slow fuses), contactors, and other devices.

[0088] In a further implementation plan, refer to Figure 3 , Figure 4 and Figure 9As shown, the ventilation openings 112 and electrical components 102 can be designed to be arranged in a corresponding manner; wherein, one ventilation opening 112 corresponds to at least one electrical component 102, that is, one ventilation opening 112 can correspond to one electrical component 102, or one ventilation opening 112 can correspond to multiple electrical components. By designing this structural form, the ventilation openings 112 correspond to the heat accumulation positions inside the switch box 10, which can accurately dissipate heat from the electrical components 102 (especially devices with high heat generation) inside the switch box 10, thereby improving heat dissipation efficiency; at the same time, it can avoid poor heat dissipation uniformity of the switch boxes 10 that flow through the cold airflow from the side closer to the electrical compartment 2 to the side farther away from the electrical compartment 2 due to the gradual accumulation of heat, or in other words, it can reduce the temperature difference of each switch box 10 to a certain extent and improve temperature uniformity.

[0089] In some more specific implementation plans, refer to Figure 9 As shown, in order to further improve the heat dissipation effect of the electrical components 102 inside the switch box 10, the electrical components 102 inside the switch box 10 can be in direct contact with the inner wall of the switch box 10 for heat transfer, or the electrical components 102 inside the switch box 10 and the inner wall of the switch box 10 can be connected for heat transfer through an insulating heat-conducting layer 103. This not only improves the heat conduction efficiency, but also improves the insulation between the electrical components 102 and the box body 101 of the switch box 10.

[0090] In some specific implementation plans, refer to Figure 2 As shown, the aforementioned cooling fan 13 may specifically include a first fan 131 disposed at the air inlet 12a and / or a second fan 132 disposed at the air outlet 12b. The first fan 131 can blow cool air into the cooling duct 12, and the second fan 132 can draw air away from the cooling duct 12. Of course, it is understood that cooling fans can also be arranged along the airflow path of the cooling duct 12. In actual applications, the number and arrangement of cooling fans 13 can be configured according to actual needs, and no further specific limitations are made here.

[0091] In some other specific implementation schemes, refer to Figure 2 , Figure 3 and Figure 7 As shown, the number of the aforementioned switch boxes 10 can be multiple, and they are arranged sequentially within the receiving cavity 11 along the second direction (i.e., the length direction of the energy storage container), combined with... Figure 8To understand this, a heat dissipation gap 15 is formed between the switch box 10 and the inner wall of the receiving cavity 11. The heat dissipation gap 15 is used to allow airflow through the heat dissipation duct 12. Specifically, the heat dissipation gap 15 can be part of the airflow path of the heat dissipation duct 12 formed by the bottom surface of the switch box 10 and the inner wall of the receiving cavity 11, or it can be part of the airflow path of the heat dissipation duct 12 formed by the top surface of the switch box 10 and the inner wall of the receiving cavity 11.

[0092] In a further implementation plan, refer to Figure 10 Combination Figure 8 As shown, the outer wall of the switch box 10, which forms the heat dissipation gap 15, can be provided with heat dissipation fins 100, and the arrangement direction of the heat dissipation fins 100 is parallel to the airflow direction of the heat dissipation duct 12. By designing the heat dissipation fins 100, the heat dissipation surface area of ​​the outer wall of the switch box 10 can be increased, so that more heat can be transferred from the outer wall to the cold airflow flowing through the receiving cavity 11, which can reduce the risk of local overheating; in addition, since the arrangement direction of the heat dissipation fins 100 is parallel to the airflow direction of the heat dissipation duct 12, the airflow resistance brought by the heat dissipation fins can be minimized.

[0093] In a further implementation plan, refer to Figure 1 As shown, the aforementioned energy storage container may specifically include a battery compartment 3, an electrical compartment 2, and a temperature control compartment 4. The battery compartment 3 is used to load battery modules, the electrical compartment 2 is equipped with a heat exchanger, and the temperature control compartment 4 is used to load liquid cooling equipment. The liquid cooling equipment can be connected to the heat exchanger through a liquid cooling circulation pipeline.

[0094] The switch box compartment 1 can be designed to be adjacent to the battery compartment 3 on one side and the electrical compartment 2 on the other. This structural design makes it easier to connect the switch box 10 in the switch box compartment 1 with the battery module in the battery compartment 3 and the electrical equipment in the electrical compartment 2.

[0095] For example, the switch box compartment 1 and the battery compartment 3 are arranged adjacent to each other in a first direction.

[0096] The temperature control compartment 4 can be designed to be adjacent to the battery compartment 3 on one side and adjacent to the electrical compartment 2 on the other side. This structural design makes it easier to connect the internal liquid cooling plate and other components of the battery module in the battery compartment 3 with the liquid cooling equipment when the liquid cooling solution is adopted. At the same time, the adjacent arrangement of the temperature control compartment 4 and the electrical compartment 2 makes it easier to connect the liquid cooling equipment with the heat exchanger, which helps to shorten the length of the liquid cooling circulation pipeline.

[0097] For example, the temperature control compartment 4 and the electrical compartment 2 are arranged adjacent to each other in the first direction.

[0098] On the other hand, refer to Figure 2This application also provides a heat dissipation system for a switch box, including a switch box compartment 1 and multiple switch boxes 10 disposed within the switch box compartment 1. The switch box compartment 1 has a receiving cavity 11 formed by multiple enclosing plates. The receiving cavity 11 has a heat dissipation duct 12 and an air inlet 12a and an air outlet 12b communicating with the heat dissipation duct 12. The switch boxes 10 are disposed within the heat dissipation duct 12, and the switch box compartment 1 is provided with a heat dissipation fan 13 for providing power for the airflow within the heat dissipation duct 12. Compared with existing switch box heat dissipation systems, this switch box heat dissipation system allows the switch boxes 10 to be disposed within the heat dissipation duct 12 within the switch box compartment 1. Only the heat dissipation fan 13 needs to be configured for the entire heat dissipation duct 12, eliminating the need for a separate fan for each switch box 10. This makes the arrangement of related components within the switch box 10 more convenient and helps reduce the overall cost of the switch box heat dissipation system. Furthermore, since the heat dissipation fan 13 is located outside the switch box 10, installation and maintenance are more convenient, helping to reduce installation and maintenance costs.

[0099] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0100] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0101] In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more.

[0102] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. An energy storage container, characterized by, The switch box cabin (1) has a plurality of containment cavities (11) enclosed by enclosure plates, the containment cavities (11) have a heat dissipation air duct (12) and an air inlet (12a) and an air outlet (12b) communicating with the heat dissipation air duct (12), the switch box (10) is arranged in the heat dissipation air duct (12), and the switch box cabin (1) is provided with a heat dissipation fan (13) for providing power for airflow flowing in the heat dissipation air duct (12).

2. The energy storage container of claim 1, wherein, The energy storage container is also provided with an electrical cabin (2), the electrical cabin (2) is provided with a heat exchanger, the switch box cabin (1) is arranged adjacent to the electrical cabin (2), and the air inlet (12a) is arranged on the side of the switch box cabin (1) adjacent to the electrical cabin (2).

3. The energy storage container of claim 2, wherein, The air inlet (12a) and the air outlet (12b) are arranged on the same side of the switch box cabin (1) and communicate with the electrical cabin (2).

4. The energy storage container of claim 3, wherein, The switch box cabin (1) is provided with a partition plate (14), the partition plate (14) extends from the side close to the electrical cabin (2) to the side away from the electrical cabin (2) to separate the heat dissipation air duct (12) into an air inlet air duct (121) and a return air duct (122), the air inlet (12a) communicates with the air inlet air duct (121), the air outlet (12b) communicates with the return air duct (122), and the partition plate (14) is provided with a communication port (140) for communicating the air inlet air duct (121) and the return air duct (122).

5. The energy storage container of claim 4, wherein, The communication port (140) is located on the side of the partition plate (14) away from the electrical cabin (2).

6. The energy storage container of claim 4, wherein, The switch box (10) is arranged in the air inlet air duct (121); and / or, the switch box (10) is arranged in the return air duct (122).

7. The energy storage container of claim 2, wherein, The air inlet (12a) and the air outlet (12b) are arranged on opposite sides of the switch box cabin (1) and can communicate with the external environment of the energy storage container.

8. The energy storage container of claim 7, wherein, It also includes an extension air duct (21) penetrating the electrical cabin (2) and not communicating with the electrical cabin (2), one end of the extension air duct communicates with the air inlet (12a), and the other end of the extension air duct (21) communicates with the external environment of the energy storage container.

9. The energy storage container of claim 1, wherein, The enclosure plate enclosing the bottom surface of the containment cavity (11) is an enclosure bottom plate (110), the enclosure bottom plate (110) has a cavity (111), one end of the cavity (111) is provided with an opening communicating with the air inlet (12a), the switch box (10) is arranged above the enclosure bottom plate (110) and has a predetermined distance from the enclosure bottom plate (110), and the surface of the enclosure bottom plate (110) facing the switch box (10) is provided with a plurality of ventilation openings (112) communicating with the cavity (111).

10. The energy storage container of claim 9, wherein, Further comprising a baffle (123) arranged in the accommodating cavity (11), one end of the baffle (123) is arranged at the air inlet (12a), and the other end is arranged at the opening, so as to guide the airflow of the air inlet (12a) to the cavity (111).

11. The energy storage container of claim 9, wherein, The ventilation openings (112) are arranged corresponding to the electrical elements (102) in the switch box (10); wherein one ventilation opening (112) corresponds to at least one electrical element (102).

12. The energy storage container of any one of claims 1-11, wherein, The number of the switch boxes (10) is multiple, and they are arranged in the accommodating cavity (11) along the length direction of the energy storage container in sequence, and the switch boxes (10) and the inner cavity wall of the accommodating cavity (11) form heat dissipation gaps (15), and the heat dissipation gaps (15) are used for the airflow of the heat dissipation air duct (12) to pass through.

13. The energy storage container of any one of claims 2-8, wherein, Further comprising a battery cabin (3) and a temperature control cabin (4), the battery cabin (3) is used for loading battery modules, and the temperature control cabin (4) is used for loading liquid cooling equipment, and the liquid cooling equipment is communicated with the heat exchanger through a liquid cooling circulation pipeline. Wherein, the switch box cabin (1) and the battery cabin (3) are arranged adjacent in the first direction; and / or, the temperature control cabin (4) and the electrical cabin (2) are arranged adjacent in the first direction.

14. A heat dissipation system for a switch box, comprising: Further comprising a switch box cabin (1) and a plurality of switch boxes (10) arranged in the switch box cabin (1), the switch box cabin (1) has an accommodating cavity (11) surrounded by a plurality of surrounding plates, the accommodating cavity (11) has a heat dissipation air duct (12), an air inlet (12a) and an air outlet (12b) communicated with the heat dissipation air duct (12), the switch boxes (10) are arranged in the heat dissipation air duct (12), and the switch box cabin (1) is provided with a heat dissipation fan (13) for providing power for the airflow flowing in the heat dissipation air duct (12).

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