Energy storage container and energy storage container group

Abstract

The utility model provides an energy storage container and an energy storage container group, and belongs to the technical field of energy storage systems, the energy storage container comprises a box body and an air cooling device, the box body comprises an electrical bin and a battery bin, and the electrical bin is provided with a first air inlet and a first air outlet; the air cooling device is arranged in the box body, the air cooling device is provided with a second air inlet and a second air outlet, the air cooling device is internally provided with a cooling system, the cooling system cools the battery bin, and the second air outlet is communicated with the first air inlet of the electrical bin. The first air inlet is communicated with the second air outlet, air discharged by the air cooling device is used for cooling the interior of the electrical bin, the situation that the high temperature in the electrical bin lasts for a long time is avoided, and the overall energy storage stability of the energy storage container is improved; and a cooling device does not need to be additionally arranged in the electrical bin, so that cost and energy consumption are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage systems, and particularly relates to an energy storage container and an energy storage container group. Background Art

[0002] In an energy storage system, the energy storage container system is widely used because it integrates flexibility, economy, efficiency, and safety and can meet the needs of most customers.

[0003] At the present stage, the energy storage container includes a battery compartment and an electrical compartment. Generally, a cooling device is used to cool the batteries in the battery compartment to meet the temperature requirements for the normal operation of the battery compartment. Since the temperature during the normal operation of the electrical compartment is relatively high, generally, no separate cooling treatment is performed on the electrical compartment, and only heat dissipation windows are simply provided on the side wall of the electrical compartment to achieve heat exchange with the external air through the heat dissipation windows, thereby controlling the temperature in the electrical compartment.

[0004] However, when the energy storage system performs high-rate charge and discharge, the heat generated by the devices in the electrical compartment is relatively large. It is difficult to effectively control the temperature rise in the electrical compartment only by setting the heat dissipation windows, resulting in an obvious temperature rise in the electrical compartment. It is easy to affect the stability of the entire energy storage system under continuous high temperature. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the high temperature rise in the battery compartment of the energy storage container in the prior art affects the system stability, so as to provide an energy storage container and an energy storage container group.

[0006] To solve the above technical problem, the utility model provides an energy storage container, including:

[0007] A box body, including an electrical compartment and a battery compartment, the electrical compartment having a first air inlet and a first air outlet;

[0008] An air cooling device, arranged in the box body, the air cooling device having a second air inlet and a second air outlet, the air cooling device internally having a cooling system, the cooling system cooling the battery compartment, and the second air outlet communicating with the first air inlet of the electrical compartment.

[0009] Optionally, the electrical compartment and the air cooling device are arranged adjacent to each other, and the first air inlet of the electrical compartment and the second air outlet of the air cooling device are arranged opposite to each other.

[0010] Optionally, the first air inlet and the second air outlet are communicated through an air duct.

[0011] Optionally, a sound-absorbing member is arranged in the air duct.

[0012] Optionally, an exhaust component is provided at the first air outlet.

[0013] Optionally, the cooling system is connected to the thermal management system on the battery compartment.

[0014] Optionally, the air cooling device is an air-cooled chiller or an air-cooled air conditioner.

[0015] The present utility model further provides an energy storage container group, including at least two energy storage containers, and the energy storage container includes:

[0016] A box body, including an electrical compartment and a battery compartment, where the electrical compartment has a first air inlet and a first air outlet;

[0017] An air cooling device, arranged inside the box body, the air cooling device has a second air inlet and a second air outlet, and a cooling system is arranged inside the air cooling device, and the cooling system cools the battery compartment;

[0018] One of two adjacent energy storage containers is a first energy storage container, and the other is a second energy storage container. The first air inlet of the first energy storage container is communicated with the second air outlet of the second energy storage container, and the first air inlet of the second energy storage container is communicated with the second air outlet of the first energy storage container.

[0019] Optionally, the electrical compartment of the energy storage container and the air cooling device of the adjacent energy storage container are arranged oppositely.

[0020] Optionally, the distance between two adjacent energy storage containers is less than or equal to 3.5 m.

[0021] Optionally, the first air inlet of the energy storage container and the second air outlet of the adjacent energy storage container are communicated through an air duct, and a sound-absorbing component is arranged in the air duct.

[0022] Optionally, an exhaust component is provided at the first air outlet.

[0023] Optionally, in the energy storage container, the cooling system is connected to the thermal management system on the battery compartment.

[0024] Optionally, the air cooling device is an air-cooled chiller or an air-cooled air conditioner.

[0025] The technical solution of the present utility model has the following advantages:

[0026] By connecting the first air inlet of the electrical compartment of the energy storage container with the second air outlet of the air cooling device of the energy storage container, or by connecting the first air inlet of the electrical compartment of one energy storage container with the second air outlet of the air cooling device of another adjacent energy storage container, the air outlet of the air cooling device can be used to cool the electrical compartment. Since the air outlet temperature of the air cooling device is medium temperature, around 50 degrees Celsius, and this temperature is normal inside the electrical compartment, and the temperature when the electrical compartment generates heat is much higher than 50 degrees Celsius, the air outlet of the air cooling device can be used to cool the inside of the electrical compartment, avoiding the high temperature inside the electrical compartment lasting for a long time, improving the stability of the overall energy storage of the energy storage container; and there is no need to additionally set a cooling device inside the electrical compartment, reducing costs and energy consumption. Brief Description of the Drawings

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of an implementation manner of the energy storage container provided in Embodiment 1 of the present invention;

[0029] Figure 2 is Figure 1 the cooling principle diagram in;

[0030] Figure 3 It is a schematic structural diagram of an implementation manner of the energy storage container group provided in Embodiment 2 of the present invention.

[0031] Description of the Reference Numerals:

[0032] 1. Box body; 2. Electrical compartment; 3. First air inlet; 4. First air outlet; 5. Air cooling device; 6. Second air inlet; 7. Second air outlet; 8. Air duct; 9. Sound-absorbing member; 10. Cooling system; 11. Battery compartment. Detailed Embodiments

[0033] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0037] Embodiment 1

[0038] The energy storage container provided in this embodiment utilizes the cooling equipment for cooling the battery compartment in the electrical compartment, reducing costs and energy consumption.

[0039] As Figure 1 and Figure 2 shown, a specific implementation manner of the energy storage container provided in this embodiment includes a box body 1 and an air cooling device 5. The box body 1 includes an electrical compartment 2 and a battery compartment 11. The electrical compartment 2 has a first air inlet 3 and a first air outlet 4; the air cooling device 5 is arranged inside the box body 1. The air cooling device 5 has a second air inlet 6 and a second air outlet 7. The air cooling device 5 internally has a cooling system 10. The cooling system 10 cools the battery compartment 11. The second air outlet 7 is communicated with the first air inlet 3 of the electrical compartment 2.

[0040] By connecting the first air inlet 3 and the second air outlet 7, since the outlet air temperature of the air cooling device 5 is medium temperature, around 50 °C, and this temperature is normal in the electrical compartment 2, and the temperature when the electrical compartment 2 generates heat is much higher than 50 °C, so the outlet air of the air cooling device 5 can be used to cool the electrical compartment, avoiding the high temperature in the electrical compartment 2 lasting for a long time, improving the overall energy storage stability of the energy storage container; and there is no need to additionally set a cooling device in the electrical compartment 2, reducing costs and energy consumption.

[0041] Specifically, the first air outlet 4 and the second air inlet 6 are both connected to the external environment, and the first air outlet 4 and the second air inlet 6 can both be of louver structure; the air in the external environment passes through the second air inlet 6 through the cooling system to exchange heat and cool the battery compartment, and the medium-temperature air after heat exchange enters the first air inlet 3 through the second air outlet 7, and after further cooling the electrical compartment 2, it is sent into the external environment through the first air outlet 4. In addition, the present application does not limit the specific positions of the first air outlet 4 and the first air inlet 3 on the electrical compartment 2 and the specific positions of the second air inlet 6 and the second air outlet 7 on the air cooling device 5, as long as the gas flow can be realized and the corresponding heat exchange and cooling effect can be achieved.

[0042] The electrical compartment 2 is used to place power distribution cabinets, inverters, transformers, management systems, etc.; the battery compartment 11 is used to place battery packs; this energy storage container stores energy, and the batteries in the battery packs include but are not limited to lithium iron phosphate batteries, ternary batteries, flow batteries, solid-state batteries, fuel cells, etc.

[0043] As Figure 2 shown, it is the schematic diagram of the air cooling device 5 completing the cooling of the electrical compartment 2. The air in the external environment exchanges heat with the cooling system 10, and the air after heat exchange is sent into the electrical compartment 2.

[0044] As Figure 1 shown, for the energy storage container provided in this embodiment, the electrical compartment 2 and the air cooling device 5 are arranged adjacent to each other, and the first air inlet 3 of the electrical compartment 2 and the second air outlet 7 of the air cooling device 5 are arranged opposite to each other.

[0045] By arranging the electrical compartment 2 and the air cooling device 5 adjacent to each other, the air sent out by the air cooling device 5 can be quickly sent into the electrical compartment 2, improving the cooling efficiency of the electrical compartment 2.

[0046] In addition, as an alternative implementation, the air cooling device 5 can also be arranged at other positions inside the box body 1.

[0047] As Figure 1As shown, for the energy storage container provided in this embodiment, the first air inlet 3 and the second air outlet 7 are connected through an air duct 8. The setting of the air duct 8 not only ensures a safe distance but also completes the connection between the two openings.

[0048] In addition, as an alternative implementation, the air duct 8 may not be provided, and the first air inlet 3 and the second air outlet 7 may be directly docked and connected.

[0049] As Figure 1 shown, for the energy storage container provided in this embodiment, a sound-absorbing member 9 is provided in the air duct 8, which reduces the noise emitted by the air cooling device 5. Specifically, the sound-absorbing member 9 includes but is not limited to sound-absorbing cotton, sound-absorbing board, sound-insulating felt, etc., and the sound-absorbing member 9 is provided on the inner side wall of the air duct 8.

[0050] For the energy storage container provided in this embodiment, an exhaust member is provided at the first air outlet 4. Specifically, the exhaust member may be an exhaust fan, and the setting of the exhaust member is more conducive to the circulation of the gas in the electrical compartment 2.

[0051] In addition, as an alternative implementation, the exhaust member may not be provided, and only the fan inside the air cooling device 5 is used for the circulation of air.

[0052] As Figure 2 shown, for the energy storage container provided in this embodiment, the cooling system 10 is connected to the thermal management system on the battery compartment 11.

[0053] Specifically, the cooling system 10 may adopt a conventional cooling method. The cooling system 10 may include a condenser, a water pump, a compressor, a condensing fan, etc. The function of the condenser is to cause the refrigerant to condense inside and generate latent heat, and this part of the heat is taken out of the air cooling device 5 through the condensing fan, so that the temperature of the air outlet rises to medium-temperature air, and this part of the flowing air is used for cooling the electrical compartment 2.

[0054] Among them, the structure and layout of the thermal management system of the battery compartment may be a conventional liquid cooling system or an air cooling system, which is not limited herein.

[0055] For the energy storage container provided in this embodiment, the air cooling device 5 is an air-cooled chiller or an air-cooled air conditioner. Through the air-cooled cooling device, the medium-temperature air after heat exchange can be utilized, and it may also be other types of air-cooled devices.

[0056] A specific implementation mode. The energy storage container is a standard 20-foot energy storage container. The battery compartment is equipped with lithium iron phosphate batteries. One side of the energy storage container is equipped with a 40kw air-cooled chiller to cool the system. The electrical compartment 2 is installed on the other side of the energy storage container. When there is a cooling requirement, the chiller is turned on. The fan in the chiller introduces the wind in the environment into the chiller unit through the second air inlet 6, dissipates the heat of the condenser inside the unit, and then discharges the medium-temperature air into the air duct 8 through the second air outlet 7. After being noise-reduced by the sound-absorbing cotton in the air duct 8, it is introduced into the electrical compartment 2. The medium-temperature air cools the electrical compartment 2 and then discharges from the first air outlet 4 of the electrical compartment 2. It is measured that compared with the scheme of additionally setting an air conditioner in the electrical compartment 2, the cost of the air conditioner is saved, about 3% of the energy consumption is saved, the communication cost between the air conditioner and the BMS is reduced, and at the same time, the stability of the system is increased. In terms of noise, the noise sound pressure level measured at a position 1m away from the chiller is 60dBA, which is reduced by more than 25% compared with the original, effectively reducing the noise.

[0057] Embodiment 2

[0058] As Figure 3 shown, a specific implementation mode of the energy storage container group provided by this embodiment includes at least two energy storage containers. The energy storage container includes a box body 1 and an air cooling device 5. The box body 1 includes an electrical compartment 2 and a battery compartment. The electrical compartment 2 has a first air inlet 3 and a first air outlet 4; the air cooling device 5 is arranged inside the box body 1. The air cooling device 5 has a second air inlet 6 and a second air outlet 7. The air cooling device 5 internally has a cooling system. The cooling system cools the battery compartment; one of the adjacent two energy storage containers is a first energy storage container, and the other is a second energy storage container. The first air inlet 3 of the first energy storage container is communicated with the second air outlet 7 of the second energy storage container, and the first air inlet 3 of the second energy storage container is communicated with the second air outlet 7 of the first energy storage container.

[0059] The air cooling devices 5 of two adjacent energy storage containers cool the electrical compartment 2 mutually, which can avoid the high temperature in the electrical compartment lasting for a long time, improve the stability of the overall energy storage of the energy storage container; and there is no need to additionally set a cooling device in the electrical compartment, reducing the cost and energy consumption; also through the connection between adjacent energy storage containers, the limitation of the position setting of the electrical compartment 2 and the air cooling device 5 in the same energy storage container is reduced.

[0060] As Figure 3As shown in the figure, for the energy storage container group provided in this embodiment, the electrical compartment 2 of the energy storage container is disposed opposite to the air cooling device 5 of the adjacent energy storage container, that is, the electrical compartment 2 of the first energy storage container is disposed opposite to the air cooling device 5 of the second energy storage container, and the electrical compartment 2 of the second energy storage container is disposed opposite to the air cooling device 5 of the first energy storage container. When the first air inlet 3 of the electrical compartment 2 is connected to the second air outlet 7 of the air cooling device 5, the length of the air duct 8 is minimized, reducing costs.

[0061] As Figure 3 shown in the figure, for the energy storage container group provided in this embodiment, the first air inlet 3 of the energy storage container communicates with the second air outlet 7 of the adjacent energy storage container through the air duct 8, that is, the first air inlet 3 of the first energy storage container communicates with the second air outlet 7 of the second energy storage container, and the first air inlet 3 of the second energy storage container communicates with the second air outlet 7 of the first energy storage container through the air duct 8. The setting of the air duct 8 not only ensures the safety distance but also completes the communication between the two ports.

[0062] In addition, as an alternative implementation, the air duct 8 may not be provided, and the first air inlet 3 and the second air outlet 7 may be directly docked and communicated.

[0063] As Figure 3 shown in the figure, for the energy storage container group provided in this embodiment, a sound-absorbing member 9 is provided in the air duct 8, reducing the noise generated by the air cooling device 5. Specifically, the sound-absorbing member 9 includes but is not limited to sound-absorbing cotton, sound-absorbing board, sound-insulating felt, etc., and the sound-absorbing member 9 is provided on the inner side wall of the air duct 8.

[0064] For the energy storage container group provided in this embodiment, an exhaust member is provided at the first air outlet 4. Specifically, the exhaust member may be an exhaust fan, and the setting of the exhaust member is more conducive to the circulation of the gas in the electrical compartment 2.

[0065] In addition, as an alternative implementation, the exhaust member may not be provided, and only the fan inside the air cooling device 5 is used for the circulation of air.

[0066] For the energy storage container group provided in this embodiment, in the energy storage container, the cooling system is connected to the thermal management system on the battery compartment. Specifically, the cooling system is the same as the cooling system mentioned in Embodiment 1, and the structure and layout of the thermal management system of the battery compartment may be a conventional liquid cooling system or an air cooling system.

[0067] The energy storage container group provided in this embodiment, the air cooling device 5 is an air-cooled chiller or an air-cooled air conditioner. Through the air-cooled cooling device, the medium-temperature air for heat exchange can be utilized, and it can also be other types of air-cooled equipment.

[0068] In the energy storage container group provided in this embodiment, the distance between two adjacent energy storage containers is less than or equal to 3.5 m, avoiding a long distance and a long time for the gas to pass through the air duct 8, resulting in a lag in the temperature reduction in the electrical compartment 2 and affecting the system stability.

[0069] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. An energy storage container, characterized in that: include: A box body (1) comprises an electrical compartment (2) and a battery compartment (11), wherein the electrical compartment (2) has a first air inlet (3) and a first air outlet (4); An air cooling device (5) is arranged in the box body (1), and the air cooling device (5) has a second air inlet (6) and a second air outlet (7). The air cooling device (5) has a cooling system (10) inside, and the cooling system (10) cools the battery compartment (11). The second air outlet (7) is connected to the first air inlet (3) of the electrical compartment (2).

2. The energy storage container according to claim 1, characterized in that: The electrical warehouse (2) and the air cooling device (5) are arranged adjacent to each other, and the first air inlet (3) of the electrical warehouse (2) and the second air outlet (7) of the air cooling device (5) are arranged opposite to each other.

3. The energy storage container according to claim 1, characterized in that: The first air inlet (3) and the second air outlet (7) are connected via an air duct (8).

4. The energy storage container according to claim 3, characterized in that: A sound absorbing component (9) is arranged in the air duct (8).

5. The energy storage container according to claim 1, characterized in that: An exhaust piece is provided at the first air outlet (4).

6. The energy storage container according to claim 1, characterized in that: The cooling system (10) is connected to the thermal management system on the battery compartment (11).

7. The energy storage container according to any one of claims 1 to 6, characterized in that: The air cooling device (5) is an air-cooled water chiller or an air-cooled air conditioner.

8. An energy storage container group, characterized in that: It comprises at least two energy storage containers, and the energy storage containers include: A box body (1) comprises an electrical compartment (2) and a battery compartment (11), wherein the electrical compartment (2) has a first air inlet (3) and a first air outlet (4); An air cooling device (5) is arranged in the box body (1), the air cooling device (5) has a second air inlet (6) and a second air outlet (7), and a cooling system (10) is provided inside the air cooling device (5), and the cooling system (10) cools the battery compartment (11); One of the two adjacent energy storage containers is a first energy storage container, and the other is a second energy storage container, the first air inlet (3) of the first energy storage container is connected to the second air outlet (7) of the second energy storage container, and the first air inlet (3) of the second energy storage container is connected to the second air outlet (7) of the first energy storage container.

9. The energy storage container assembly according to claim 8, characterized in that: The electrical compartment (2) of the energy storage container and the wind cooling device (5) of the adjacent energy storage container are arranged relative to each other.

10. The energy storage container assembly according to claim 8, characterized in that: The first air inlet (3) of the energy storage container and the second air outlet (7) of the adjacent energy storage container are connected via an air duct (8), and a sound absorbing member (9) is provided in the air duct (8); And / or, an exhaust member is provided at the first air outlet (4); And / or, in the energy storage container, the cooling system (10) is connected to a thermal management system on the battery compartment (11); And / or, the air cooling device (5) is an air-cooled water chiller or an air-cooled air conditioner; And / or, the distance between two adjacent energy storage containers is less than or equal to 3.5 m.

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