Energy storage container and energy storage system

Abstract

The application relates to the technical field of energy storage containers, in particular to an energy storage container, and further relates to an energy storage system comprising the energy storage container; the energy storage container comprises a box body configured to internally form an electrical compartment with a side surface in communication with external airflow, a converter compartment constructed in the interior of the box body and located beside the electrical compartment, and a flow guide air duct constructed in the interior of the converter compartment and isolated from the converter compartment; the converter compartment is configured to have a first air outlet and a second air outlet in communication with external airflow on the side surface and the top surface respectively; the flow guide air duct is configured to have two ends respectively communicated with the electrical compartment and the first air outlet; the converter compartment is provided with at least one air inlet not sharing a side with the first air outlet; through the air flow layout of the box body, the air inlet-outlet disturbance problem in the heat dissipation process of the converter and electrical components is effectively avoided, cold air and hot air cannot be short-circuited, the heat dissipation effect of the converter and the electrical components is improved, and the actual heat dissipation demand of the energy storage converter can be met.

Description

Technical Field

[0001] This application relates to the field of energy storage container technology, specifically to an energy storage container, and further to an energy storage system comprising the energy storage container. Background Technology

[0002] With the rapid development of the energy storage industry in recent years, energy storage systems have been gradually applied to power plant regulation, peak shaving and valley filling in industrial parks, and microgrids. Large-scale outdoor energy storage typically consists of hundreds or thousands of energy storage batteries connected in series and parallel to form battery clusters, which are then integrated into a container. Since the charging and discharging process of the energy storage batteries inside the container generates a large amount of heat, and the temperature of the energy storage batteries has a significant impact on battery life and system safety, thermal management of energy storage containers is particularly important.

[0003] Some existing energy storage containers are equipped with energy storage converters and combiner cabinets inside, as well as an electrical compartment to house equipment such as power distribution cabinets, communication control cabinets, and energy management systems. Energy storage converters generate a lot of heat during use, so they need to be cooled independently to ensure their normal operation. Furthermore, since other parts of the container, such as the electrical compartment and combiner cabinet, also need to be cooled, hot air from the electrical compartment can easily flow into the air intake of the energy storage converter, causing airflow turbulence and making it difficult to meet the actual heat dissipation requirements of the energy storage converter and the electrical compartment. Utility Model Content

[0004] The purpose of this utility model is to provide an energy storage container that aims to solve the problem of airflow disturbance during the heat dissipation process of the internal energy storage converter and electrical compartment, and to meet the actual heat dissipation requirements of the energy storage converter.

[0005] To achieve one of the aforementioned objectives, according to one aspect of this application, an energy storage container is provided, comprising: The enclosure is configured to form an electrical compartment with at least one side that is open to airflow from the outside. The converter compartment, constructed inside the housing and located next to the electrical compartment, is configured to have a first air outlet and a second air outlet on its side and top respectively, which are connected to the external airflow. The air duct, constructed inside the inverter compartment and isolated from its airflow, is configured to connect at both ends to the electrical compartment and the first air outlet, respectively. The inverter compartment is provided with at least one air inlet that is not on the same side as the first air outlet.

[0006] In addition to one or more of the above, or as an alternative, in other embodiments, it also includes: The combiner cabinet is located inside the enclosure. The converter compartment and the combiner cabinet are stacked sequentially in a descending direction and are configured to isolate each other from airflow.

[0007] It is easy to see that by setting up an electrical compartment to accommodate the electrical components inside the energy storage container, and utilizing the converter compartment to facilitate the installation of the energy storage converter inside, the electrical compartment, which is connected to the outside airflow on the side, and the airflow guide duct, which is set inside the converter compartment and isolated from its airflow, allows the cold air entering the electrical compartment from the outside to absorb heat and then be guided to the first air outlet through the airflow guide duct for discharge. Since the second air outlet of the converter compartment is located at the top and the electrical compartment takes in air from the side, the hot air passing through the converter compartment will not affect the electrical compartment. Furthermore, the air inlet of the converter compartment and the first air outlet of the electrical compartment are not on the same side, so the hot air discharged from the electrical compartment will also not affect the converter compartment. This effectively avoids the problem of airflow turbulence during the heat dissipation process of the converter and electrical components, and prevents short circuits between cold and hot air, thereby improving their respective heat dissipation effects and meeting the actual heat dissipation requirements of the energy storage converter.

[0008] In addition to one or more of the above, or as an alternative, in another embodiment, the junction box is provided with an air inlet communicating with the external airflow on at least one side along the first direction, and a third air outlet is provided on the side of the junction box away from the electrical compartment.

[0009] In addition to one or more of the above, or as an alternative, in another embodiment, the junction box has recesses that communicate with the outside between the outer walls on both sides along the second direction and the outer wall of the box, and the electrical compartment is provided with an air duct that communicates with the outside airflow at a position opposite to each of the recesses.

[0010] In addition to one or more of the above, or as an alternative, in another embodiment, the container further includes: The louvers are configured to be fixedly installed inside the first air outlet and / or the air guide and / or the third air outlet.

[0011] In addition to one or more of the above, or as an alternative, in another embodiment, the inverter compartment is provided with the air inlet on at least one side along the first direction, the inverter compartment is provided with the first air outlet on the side opposite to the electrical compartment, and the electrical compartment and the inverter compartment are distributed sequentially along the second direction.

[0012] In addition to one or more of the above, or as an alternative, in another embodiment, the inverter compartment is provided with air inlets on both sides of the bottom along the first direction, and the air inlets are configured such that the bottom surface and the outer surface are open to the outside airflow.

[0013] In addition to one or more of the above, or as an alternative, in another embodiment, two rows of PCS are arranged sequentially along a first direction inside the converter compartment, and the air guide passage is configured to be sandwiched between the two rows of PCS.

[0014] In addition to one or more of the above, or as an alternative, in another embodiment, the energy storage container further includes: An air guide unit is constructed inside the air guide duct and configured to accelerate the airflow exchange between the electrical chamber and the outside environment; An explosion relief plate is installed inside multiple openings on the top of the enclosure and is configured to face the battery compartment inside the enclosure.

[0015] In addition to one or more of the above, or as an alternative, in another embodiment, the air guiding unit is configured as at least one air guiding fan housed in the air guiding duct near the first air outlet.

[0016] In addition to one or more of the above, or as an alternative, in another embodiment, the energy storage container further includes: The fire protection unit and the sensing unit are configured to be located in the enclosure; The communication control cabinet is configured to be housed inside the electrical compartment.

[0017] In addition to one or more of the above, or as an alternative, in another embodiment, the fire-fighting unit includes at least: a fire control panel disposed inside the enclosure, and fire-fighting air intake louvers, fire-fighting exhaust louvers, a fire emergency stop button, and a system emergency stop button disposed on the outer wall of the enclosure, and / or The sensing unit includes at least a temperature sensor and a smoke sensor located inside the box.

[0018] In addition to one or more of the above, or as an alternative, in another embodiment, the container is configured as a 20HQ standard container, and its lengths along the first direction, the second direction, and the height direction are 2438mm, 6058mm, and 2896mm, respectively.

[0019] To achieve one of the aforementioned objectives, according to another aspect of this application, an energy storage system is provided, the energy storage system comprising the energy storage container described in the foregoing aspect.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up an electrical compartment to facilitate the housing of electrical components inside the energy storage container, and by utilizing a converter compartment to facilitate the installation of an energy storage converter inside, the electrical compartment, which is connected to the external airflow on the side, and the airflow guide duct, which is set inside the converter compartment and isolated from its airflow, can absorb the heat of the cold air entering the electrical compartment from the outside and guide it to the first air outlet through the airflow guide duct for discharge. Since the second air outlet of the converter compartment is located at the top and the electrical compartment takes in air from the side, the hot air heated by the converter compartment will not affect the electrical compartment. Furthermore, the air inlet of the converter compartment and the first air outlet of the electrical compartment are not on the same side, so the hot air discharged from the electrical compartment will also not affect the converter compartment. This effectively avoids the problem of airflow turbulence during the heat dissipation process of the converter and electrical components, and prevents short circuits between cold and hot air, thereby improving their respective heat dissipation effects and meeting the actual heat dissipation requirements of the energy storage converter. Attached Figure Description

[0021] The disclosure of this application will be more readily understood with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0022] In the picture: Figure 1 A three-dimensional structural diagram of the energy storage container provided by this utility model; Figure 2 A top view of the energy storage container provided by this utility model; Figure 3 A structural cross-sectional view of the energy storage container provided by this utility model; Figure 4 Another structural cross-sectional view of the energy storage container provided by this utility model; Figure 5 A front structural view of the energy storage container provided by this utility model; Figure 6 A side view of the energy storage container provided by this utility model; Figure 7 A side view of the energy storage container provided by this utility model from another perspective.

[0023] In the attached diagram: 1. Housing, 11. First air outlet, 12. Second air outlet, 13. Air inlet, 14. Air inlet, 15. Third air outlet, 16. Air guide, 2. Electrical compartment, 3. Converter compartment, 4. Air duct, 5. Combining cabinet, 6. Recess, 7. Explosion relief plate, 8. Air guide unit. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0025] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0026] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0027] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0028] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0029] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0030] In the prior art, some existing energy storage containers require heat dissipation treatment during the operation of the energy storage converter due to the large amount of heat generated during use, in order to ensure its normal operation. Furthermore, since other parts of the container, such as the electrical compartment and the combiner cabinet, also require heat dissipation treatment, hot air from the electrical compartment can easily flow into the location of the energy storage converter, causing airflow turbulence and reducing the heat dissipation effect of the energy storage converter. This makes it difficult to meet the actual heat dissipation requirements of the energy storage converter and electrical components. Therefore, this application is proposed.

[0031] Figure 1 This is a perspective view of an energy storage container according to one embodiment of the present application. The energy storage container can be used in an energy storage system and includes: a housing 1 configured to have an electrical compartment 2 with at least one side communicating with the external airflow; a converter compartment 3 constructed inside the housing 1 and located next to the electrical compartment 2; and a guide air duct 4 constructed inside the converter compartment 3 and isolated from its airflow. The converter compartment 3 is configured to have a first air outlet 11 and a second air outlet 12 communicating with the external airflow on its side and top surfaces, respectively. The guide air duct 4 is configured to have its two ends connected to the electrical compartment 2 and the first air outlet 11, respectively. The converter compartment 3 is provided with at least one air inlet 13 that is not on the same side as the first air outlet 11.

[0032] refer to Figures 1-5 It can be seen that by setting up the electrical compartment 2 to accommodate the electrical components inside the energy storage container, and using the converter compartment 3 to facilitate the installation of the energy storage converter inside, the electrical compartment 2, which is connected to the external airflow on the side, and the air guide duct 4, which is set inside the converter compartment 3 and isolated from its airflow, can absorb the heat of the cold air entering the electrical compartment 2 and guide it to the first air outlet 11 for discharge through the air guide duct 4. Since the second air outlet 12 of the converter compartment 3 is located at the top and the electrical compartment 2 is air-intake from the side, the hot air heated by the converter compartment 3 will not affect the electrical compartment 2. The air inlet 13 of the converter compartment 3 and the first air outlet 11 of the electrical compartment 2 are not on the same side, so the hot air discharged from the electrical compartment 2 will also not affect the converter compartment 3. This effectively avoids the problem of airflow turbulence during the heat dissipation process of the converter and electrical components. The cold air and hot air will not short-circuit, thereby improving their respective heat dissipation effects and meeting the actual heat dissipation requirements of the energy storage converter.

[0033] Specifically, refer to Figure 3 and Figure 4The air inlet 13 of the inverter compartment 3 and the first air outlet 11 of the electrical compartment 2 are located on different sides of the housing 1, which can prevent the hot air absorbed by the electrical compartment 2 from re-entering the interior of the inverter compartment 3. This can effectively avoid the problem of airflow disturbance between different equipment spaces and ensure their actual heat dissipation effect. In this embodiment, the air inlet 13 is on the side of the housing 1 along the first direction, and the first air outlet 11 is located on the end face of the housing 1 along the second direction. Of course, other distribution methods are also possible, but this embodiment does not make specific limitations here.

[0034] In actual operation, the Power Conversion System (PCS) is an important component of the energy storage system. It can be connected between the energy storage device and the power grid or load, and is mainly responsible for realizing the bidirectional AC-DC conversion of electrical energy in the energy storage system to control the charging and discharging process of the energy storage battery pack.

[0035] It should be noted that the electrical compartment 2 inside the energy storage container typically includes an energy management system (EMS) responsible for monitoring and managing the operating status of the entire system. It may also include a communication control cabinet responsible for communication and command transmission between devices within the system, as well as other electrical components. The specific configuration inside can be selected as needed, and this embodiment does not impose any specific limitations on it.

[0036] In one embodiment, reference is made to... Figures 3-6 It also includes a combiner cabinet 5 disposed inside the housing 1. The converter compartment 3 and the combiner cabinet 5 are stacked sequentially along the direction of decreasing height and are configured to isolate each other from airflow.

[0037] It can be seen that by setting up combiner cabinet 5, it is convenient to collect and distribute electrical energy, connect the battery system and PCS, and transmit the electrical energy of multiple battery clusters to the PCS, which can provide overcurrent protection and overvoltage protection for the energy storage container.

[0038] Further reference Figure 3 and Figure 4 The junction box 5 is provided with an air inlet 14 that communicates with the external airflow on at least one side along the first direction, and a third air outlet 15 is provided on the side of the junction box 5 away from the electrical compartment 2.

[0039] It is easy to see that the combiner cabinet 5 has an air inlet 14 on its side that is connected to the outside airflow, and a third air outlet 15 is provided on the side of the combiner cabinet 5 away from the electrical compartment 2. Thus, the air inlet 14 and the third air outlet 15 are used to dissipate heat from the combiner cabinet 5. Furthermore, the air inlet 14 is not on the same side as the first air outlet 11 and the second air outlet 12, and the third air outlet 15 is not on the same side as the air inlet 13. Therefore, the combiner cabinet 5, the converter compartment 3, and the electrical compartment 2 do not interfere with each other, ensuring their respective heat dissipation effects.

[0040] Furthermore, refer to Figure 3 , Figure 4 and Figure 6 The inverter compartment 3 has an air inlet 13 on at least one side along the first direction, and the inverter compartment 3 has a first air outlet 11 on the side opposite to the electrical compartment 2. The electrical compartment 2 and the inverter compartment 3 are distributed sequentially along the second direction.

[0041] It can be seen that by setting the air inlet 13 on the side of the inverter compartment 3 along the first direction and setting the first air outlet 11 on the side away from the electrical compartment 2, the first air outlet 11 of the electrical compartment 2 is not on the same side as the air inlet 13 of the inverter, thus ensuring that they have independent air inlet and outlet.

[0042] In one embodiment, reference is made to... Figure 3 Inside the converter compartment 3, two rows of PCS are arranged sequentially along the first direction, and the air guide duct 4 is configured to be sandwiched between the two rows of PCS.

[0043] It can be understood that by setting two rows of PCS inside the inverter compartment 3, corresponding to the multiple battery clusters inside the housing 1, and the air guide duct 4 sandwiched between the two rows of PCS, the hot air can be guided into the electrical compartment 2 while ensuring that it is isolated from the inverter compartment 3, thus ensuring the stability of their respective functions.

[0044] Based on this, the inverter compartment 3 is provided with air inlets 13 on both sides along the first direction, and the air inlets 13 are configured such that the bottom surface and the outer surface are connected to the external airflow.

[0045] It is easy to see that by setting air inlets 13 on both sides of the inverter compartment 3 along the first direction, it is convenient to correspond to the two rows of PCS. Thus, both rows of PCS take in air through the air inlets 13 at the bottom, and then exhaust the heat from the inverter compartment 3 through the second air outlet 12 at the top.

[0046] For example, refer to Figure 3 , Figure 4 , Figure 5 and Figure 7 The air inlet 13 is configured as an air intake mesh distributed on the bottom and sides of the inverter compartment 3, and the second air outlet 12 is configured as a top mesh distributed on the top of the inverter compartment 3, so as to achieve effective heat dissipation of the internal PCS. Of course, the air inlet 13 and the second air outlet 12 can also adopt other forms, and this embodiment does not make specific limitations here.

[0047] In one embodiment, reference is made to... Figure 3It also includes: an air guide unit 8 constructed inside the air guide duct 4 and configured to accelerate the airflow exchange between the electrical chamber 2 and the outside, and a communication control cabinet configured to be housed inside the electrical chamber 2.

[0048] It can be seen that by setting the air guide unit 8 inside the air guide duct 4, the airflow exchange between the electrical chamber 2 and the outside world is facilitated, thereby improving the actual heat exchange effect of the electrical chamber 2. The communication control cabinet set inside the electrical chamber 2 can realize data interaction and control command transmission between devices such as EMS, BMS, and PCS.

[0049] In one embodiment, reference is made to... Figure 3 The air guiding unit 8 is configured as at least one air guiding fan housed in the air guiding duct 4 near the first air outlet 11.

[0050] For example, the air guiding unit 8 mentioned above can be other air guiding devices besides an air guiding fan, such as a blower, as long as it can accelerate the airflow. This embodiment does not make specific limitations here.

[0051] Further reference Figure 1 , Figure 3 and Figure 4 The junction box 5 has recesses 6 that communicate with the outside between its outer walls on both sides along the second direction and the outer wall of the box 1. The electrical compartment 2 is provided with air vents 16 that communicate with the outside airflow at the position opposite to each of the recesses 6.

[0052] Specifically, by forming notches 6 on both sides of the junction box 5, the electrical compartment 2 can be equipped with air guides 16 at positions opposite to the notches 6, thereby drawing cold air into the electrical compartment 2 from the notches 6.

[0053] For example, the converter compartment 3 is independently designed to meet the heat dissipation requirements of the converter; a steel mesh is provided at the second air outlet 12 at the top of the converter compartment 3 for exhaust heat dissipation; a steel mesh is provided at the bottom of the converter compartment 3 for air intake, thereby effectively ensuring the intake and exhaust of the converter compartment 3, while also preventing debris from entering the interior of the converter compartment 3, further ensuring its heat dissipation effect.

[0054] Furthermore, refer to Figure 1 , Figures 2-7 It also includes louvers configured to be fixedly installed inside the first air outlet 11, the air guide 16, and the third air outlet 15.

[0055] It can be seen that by setting up louvers, the first air outlet 11, the air guide 16 and the third air outlet 15 can be blocked, thereby ensuring their normal air intake and exhaust. At the same time, it can also block debris and reduce the impact on internal equipment and components.

[0056] It should be noted that, through a reasonable layout design in this embodiment, the air intake of the electrical compartment 2, the air intake of the combiner cabinet 5, and the air intake of the PCS are respectively gathered at different locations in the container; correspondingly, the exhaust air of the electrical compartment 2, the exhaust air of the combiner cabinet 5, and the exhaust air of the PCS are gathered at other locations; thus, the air intake and exhaust are reasonably separated, and there will be no airflow turbulence; the heat dissipation requirements of the electrical compartment 2, the combiner cabinet 5, and the converter can be met.

[0057] In one embodiment, reference is made to... Figure 2 and Figure 7 The energy storage container also includes: a fire-fighting unit and a sensing unit configured to be located in the container body 1, and an explosion relief plate 7 disposed inside a plurality of openings on the top of the container body 1 and configured to be opposite to the battery compartment inside the container body 1.

[0058] It is understood that by installing fire suppression units and sensing units, the safety of energy storage containers can be effectively improved. The fire suppression units can promptly extinguish fires inside the container in the event of an inside fire, preventing the fire from spreading; the sensing units can monitor the temperature and smoke levels inside the container in real time, promptly detecting abnormalities and issuing alarms.

[0059] Furthermore, the fire protection unit includes at least: a fire control unit located inside the housing 1, and fire intake louvers, fire exhaust louvers, fire emergency stop button, and system emergency stop button located on the outer wall of the housing 1.

[0060] It is easy to see that the fire control panel can centrally manage and control the fire protection system, improving fire extinguishing efficiency and reliability; the fire intake louvers and fire exhaust louvers can effectively control the air entering and leaving the container 1, thereby improving fire extinguishing efficiency; the fire emergency stop button and the system emergency stop button can quickly cut off the power and stop the system operation in an emergency, ensuring the safe operation of the energy storage container.

[0061] Furthermore, the sensing unit includes at least a temperature sensor and a smoke sensor located inside the housing 1.

[0062] It is known that by using temperature sensors and smoke sensors, early fire warning functions can be effectively realized. Once abnormal temperature or smoke signals are detected, an alarm can be issued immediately, which facilitates timely reminders to relevant personnel to take measures and helps to achieve early detection and timely handling of fires.

[0063] For example, the container 1 is configured as a 20HQ standard container, and its lengths along the first direction, the second direction, and the height direction are 2438 mm, 6058 mm, and 2896 mm, respectively.

[0064] It should be noted that, through the reasonable layout of the converter compartment 3, the electrical compartment 2, and the combiner cabinet 5, combined with their respective rational size layout, this embodiment can meet the advantages of 20HQ standard container sea freight transportation and effectively save transportation costs.

[0065] In addition, the container of this application can meet the charging and discharging of 1C and the customer frequency modulation function. By reasonably arranging the communication control cabinet, combiner cabinet 5, PCS and fire protection, the charging and discharging requirements of 1C can be met.

[0066] This embodiment also proposes an energy storage system, including the energy storage container described above.

[0067] It can be seen that by applying the above-mentioned energy storage container to the energy storage system, the electrical compartment 2 is set up to accommodate the electrical components inside the energy storage container, and the converter compartment 3 is used to facilitate the installation of the energy storage converter inside. By setting up the electrical compartment 2, which is connected to the external airflow on the side, and the air guide duct 4 set inside the converter compartment 3 and isolated from its airflow, the cold air entering the electrical compartment 2 absorbs heat and is guided to the first air outlet 11 for discharge through the air guide duct. Since the second air outlet 12 of the converter compartment 3 is located at the top and the electrical compartment 2 is air-intake from the side, the hot air passing through the converter compartment 3 will not affect the electrical compartment 2. The air inlet 13 of the converter compartment 3 and the first air outlet 11 of the electrical compartment 2 are not on the same side, so the hot air discharged from the electrical compartment 2 will also not affect the converter compartment 3. This effectively avoids the problem of airflow turbulence during the heat dissipation process of the converter and electrical components. Cold air and hot air will not short-circuit, thereby improving their respective heat dissipation effects and meeting the actual heat dissipation requirements of the energy storage converter.

[0068] The above examples primarily illustrate the energy storage container and the energy storage system including the energy storage container of this application. Although only some embodiments of this application have been described, those skilled in the art should understand that this application can be implemented in many other forms without departing from its spirit and scope. Therefore, the examples and embodiments shown are considered illustrative rather than restrictive, and this application may cover various modifications and substitutions without departing from the spirit and scope of the technical solution of this application.

Claims

1. An energy storage container, characterized in that, include: The enclosure is configured to form an electrical compartment with at least one side that is open to airflow from the outside. The converter compartment, constructed inside the housing and located next to the electrical compartment, is configured to have a first air outlet and a second air outlet on its side and top respectively, which are connected to the external airflow. The air duct, constructed inside the inverter compartment and isolated from its airflow, is configured to connect at both ends to the electrical compartment and the first air outlet, respectively. The inverter compartment is provided with at least one air inlet that is not on the same side as the first air outlet.

2. The energy storage container according to claim 1, characterized in that, Also includes: The combiner cabinet is located inside the enclosure. The converter compartment and the combiner cabinet are stacked sequentially in a descending direction and are configured to isolate each other from airflow.

3. The energy storage container according to claim 2, characterized in that, The junction box has an air inlet that communicates with the outside airflow on at least one side along the first direction, and a third air outlet on the side of the junction box away from the electrical compartment.

4. An energy storage container according to claim 3, characterized in that, The junction box has recesses that communicate with the outside between its outer walls on both sides along the second direction and the outer wall of the box. The electrical compartment is provided with an air vent that communicates with the outside airflow at a position opposite to each of the recesses.

5. An energy storage container according to claim 4, characterized in that, The container also includes: The louvers are configured to be fixedly installed inside the first air outlet and / or the air guide and / or the third air outlet.

6. An energy storage container according to claim 1, characterized in that, The inverter compartment has an air inlet on at least one side along the first direction, and the inverter compartment has a first air outlet on the side opposite to the electrical compartment. The electrical compartment and the inverter compartment are distributed sequentially along the second direction.

7. An energy storage container according to claim 6, characterized in that, The inverter compartment has air inlets on both sides of its bottom along the first direction, and the air inlets are configured such that both the bottom and outer sides are open to external airflow.

8. An energy storage container according to claim 1, characterized in that, The converter compartment has two rows of PCS arranged sequentially along a first direction, and the air guide channel is configured to be sandwiched between the two rows of PCS.

9. An energy storage container according to claim 1, characterized in that, The energy storage container also includes: An air guide unit is constructed inside the air guide duct and configured to accelerate the airflow exchange between the electrical chamber and the outside environment; An explosion relief plate is installed inside multiple openings on the top of the enclosure and is configured to face the battery compartment inside the enclosure.

10. An energy storage container according to claim 9, characterized in that, The air guiding unit is configured as at least one air guiding fan housed in the air guiding duct near the first air outlet.

11. An energy storage container according to claim 1, characterized in that, The energy storage container also includes: The fire protection unit and the sensing unit are configured to be located in the enclosure; The communication control cabinet is configured to be housed inside the electrical compartment.

12. An energy storage container according to claim 11, characterized in that, The fire protection unit includes at least: a fire control panel located inside the enclosure, and fire intake louvers, fire exhaust louvers, a fire emergency stop button, and a system emergency stop button installed on the outer wall of the enclosure, and / or The sensing unit includes at least a temperature sensor and a smoke sensor located inside the box.

13. An energy storage container according to claim 1, characterized in that, The container is configured as a 20HQ standard container, and its lengths along the first direction, the second direction, and the height direction are 2438 mm, 6058 mm, and 2896 mm, respectively.

14. An energy storage system, characterized in that, It includes multiple energy storage containers as described in any one of claims 1-13.

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