Energy storage container

Abstract

An energy storage container comprises an energy storage cabinet, the energy storage cabinet comprises a containing cabin set and an electrical cabin, the containing cabin set comprises a plurality of containing cabins arranged in the first direction, each containing cabin is provided with an air inlet valve and an air outlet valve, and the air inlet valves are lower than the air outlet valves; the electrical cabin is located at one end of the placing cabin group in the first direction, air inlets are formed in the two sides, adjacent to the placing cabin group, of the electrical cabin respectively, and a first air outlet is formed in the side, away from the placing cabin group, of the electrical cabin; the plurality of battery modules are arranged in the placing cabin along the height direction of the energy storage cabinet; the control device is arranged in the electrical cabin and is electrically connected with the plurality of battery modules; the air cooling device is arranged in the electrical cabin so as to guide air entering from the air inlet to the first air outlet; the liquid cooling device is arranged in the electrical cabin; the two liquid cooling pipe groups are arranged at the two ends of the placement cabin group in the second direction, and each liquid cooling pipe group is communicated with the liquid cooling device and the plurality of battery modules to form a liquid cooling circulation loop; the first direction and the second direction are perpendicular to the height direction of the energy storage cabinet.

Description

Technical Field

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

[0002] In the related art, energy storage containers are usually composed of a storage compartment and an electrical compartment. The storage compartment is used to hold batteries, and the electrical compartment is used to hold some control structures of the energy storage container. During operation, the energy storage system will generate a large amount of heat, and the control structure in the electrical compartment will also release heat. It is necessary to set up a thermal management structure to dissipate heat from the energy storage container and control the heat of the energy storage container. Once a battery module has thermal runaway, a large amount of flammable gas will be generated. If it is not discharged in time, the concentration will rise and it will easily cause an explosion, causing huge losses.

[0003] The existing thermal management structure uses a single air-cooled or liquid-cooled heat storage container to dissipate heat, and sets up an exhaust structure to exhaust in the event of thermal runaway. However, the air cooling effect is difficult to meet the heat dissipation requirements of the battery module, the liquid cooling cost is high, and the flow rate is precisely controlled according to the amount of heat generated. The existing exhaust structure takes up a lot of space, and if the battery module with thermal runaway is far away from the exhaust structure during the exhaust process, the combustible gas needs to cross multiple battery compartments to be discharged, and the exhaust efficiency is very low. Utility Model Content

[0004] The purpose of the utility model is to provide a new technical solution for an energy storage container, which can at least solve the problem that the thermal management structure in the prior art is difficult to meet the heat dissipation and exhaust requirements.

[0005] The utility model provides an energy storage container, comprising: an energy storage cabinet, the energy storage cabinet comprising: a storage compartment group, the storage compartment group comprising a plurality of storage compartments arranged along a first direction, each of the storage compartments being provided with an air inlet valve and an air exhaust valve, in the height direction of the energy storage cabinet, the air inlet valve being lower than the air exhaust valve; and an electrical compartment, the electrical compartment being located at one end of the storage compartment group in the first direction, the electrical compartment being provided with air inlets on both sides adjacent to the storage compartment group, and a first air outlet on a side of the electrical compartment away from the storage compartment group; a plurality of battery modules, the plurality of battery modules being arranged in the storage compartment along the first direction. The energy storage cabinet is arranged in the height direction; a control device, which is arranged in the electrical compartment and is electrically connected to the plurality of battery modules; an air cooling device, which is arranged in the electrical compartment to guide the gas entering from the air inlet to the first air outlet; a liquid cooling device, which is arranged in the electrical compartment; and two liquid cooling pipe groups, which are arranged at both ends of the placement compartment group in the second direction, and each of the liquid cooling pipe groups is connected to the liquid cooling device and the plurality of battery modules to form a liquid cooling circulation loop; wherein the first direction, the second direction and the height direction of the energy storage cabinet are perpendicular.

[0006] Optionally, the air inlet valve and the air exhaust valve on each of the storage compartments are spaced apart in the second direction.

[0007] Optionally, each of the storage compartments is provided with doors at both ends in the second direction, one of the two doors of each of the storage compartments is provided with the air inlet valve, and the other of the two doors of each of the storage compartments is provided with the exhaust valve.

[0008] Optionally, a first partition is provided in the energy storage cabinet, and the first partition separates the energy storage cabinet into a plurality of the placement compartments. In the height direction of the energy storage cabinet, the top of the first partition is separated from the top of the energy storage cabinet to form an air passage, and the air passage connects the internal spaces of adjacent placement compartments.

[0009] Optionally, a second partition is provided between the storage compartment group and the electrical compartment, the second partition isolates the storage compartment group and the electrical compartment, and an explosion-proof valve is provided at one end of the storage compartment group away from the electrical compartment.

[0010] Optionally, each of the storage compartments is provided with a detector and a controller. The detector is provided in each of the storage compartments for detecting the concentration of the combustible gas in the storage compartment. The controller is electrically connected to the exhaust valve, the intake valve and the detector, respectively, so as to control the on and off of the exhaust valve and the intake valve according to the detection results of the detector.

[0011] Optionally, the air cooling device includes: an air guide plate, which extends along an arc, and in the extension direction of the arc of the air guide plate, the first end of the air guide plate extends toward the air inlet, and the second end of the air guide plate extends toward the first air outlet.

[0012] Optionally, an air guide channel is provided in the electrical compartment, and the air guide channel includes a first channel and a second channel, the first channel extends along the second direction, the second channel extends along the first direction, both ends of the first channel are respectively connected to the two air inlets, one end of the second channel is connected to the first channel, and the other end of the second channel is connected to the first air outlet, and the air guide plate and the control device are respectively arranged in the first channel.

[0013] Optionally, the number of the air guide plates is two, and the two air guide plates are respectively a first air guide plate and a second air guide plate; in the arc extension direction of the air guide plates, one of the first end of the first air guide plate and the first end of the second air guide plate extends in the positive direction of the second direction, and the other extends in the reverse direction of the second direction, and the second end of the first air guide plate and the second end of the second air guide plate respectively extend along the first direction toward the second channel.

[0014] Optionally, the first end of the first air guide plate and the first end of the second air guide plate are connected to the inner wall surface of the first channel away from the second channel, and the second end of the first air guide plate and the second end of the second air guide plate are connected.

[0015] Optionally, the control device includes: two DCDC components, the two DCDC components are spaced apart along the second direction, and the air guide plate is located between the two DCDC components.

[0016] Optionally, a first installation cavity, a second installation cavity and a third installation cavity are further provided in the electrical compartment, the first installation cavity is provided with the liquid cooling device, the second installation cavity is provided with a fire-fighting device, and the third installation cavity is provided with an electrical device; in the first direction, the first installation cavity, the second installation cavity and the third installation cavity are located on the side of the first channel away from the placement compartment group; in the second direction, the first installation cavity, the second installation cavity and the third installation cavity are arranged in sequence, and the second channel is located between the first installation cavity and the third installation cavity; in the height direction of the energy storage cabinet, the second installation cavity is located at the lower side of the second channel; the first installation cavity, the second installation cavity and the third installation cavity are isolated from each other.

[0017] Optionally, a second air outlet and a third air outlet are provided on a side of the electrical compartment away from the placement compartment group, the second air outlet is communicated with the first installation cavity, and the third air outlet is communicated with the third installation cavity.

[0018] Optionally, the liquid cooling tube group includes: an input tube group, two of the input tube groups are arranged at the two ends of the placement chamber group in the second direction, each of the input tube groups includes a first tube, a second tube and a third tube that are connected in sequence, the first tube passes through a plurality of the placement chambers and is connected to the liquid cooling device, and the third tube is connected to a water inlet of the battery module; an output tube group, two of the output tube groups are arranged at the two ends of the placement chamber group in the second direction, each of the output tube groups includes a fourth tube, a fifth tube and a sixth tube that are connected in sequence, the fourth tube passes through a plurality of the placement chambers and is connected to the liquid cooling device, and the sixth tube is connected to a water outlet of the battery module.

[0019] Optionally, the first tube and the fourth tube extend respectively along the first direction, the second tube and the fifth tube extend respectively along the height direction of the energy storage cabinet, each of the first tubes is connected to a plurality of the second tubes arranged along the first direction, each of the second tubes is connected to a plurality of the third tubes arranged along the height direction of the energy storage cabinet, each of the fourth tubes is connected to a plurality of the fifth tubes arranged along the first direction, and each of the fifth tubes is connected to a plurality of the sixth tubes arranged along the height direction of the energy storage cabinet.

[0020] Optionally, the first tube is located at the top of the placement chamber group, and the fourth tube is located at the bottom of the placement chamber group.

[0021] Optionally, in the second direction, the second tube is located on a side of the corresponding first tube away from the battery module, the fifth tube is located on a side of the corresponding fourth tube away from the battery module, a first connecting tube is provided between the ends of the first tube and the second tube, and a second connecting tube is provided between the ends of the fourth tube and the fifth tube.

[0022] Optionally, a speed regulating valve is provided on the first connecting pipe.

[0023] Optionally, an exhaust mechanism is provided on the first connecting pipe.

[0024] Optionally, each of the first pipes is provided with a water pump.

[0025] According to the energy storage container of the utility model, an air inlet valve and an exhaust valve are arranged on each storage compartment of the cabinet body, and the air inlet valve is lower than the exhaust valve. In the event of an emergency, independent exhaust of a single compartment can be achieved, so that the combustible gas is quickly discharged from the nearest exhaust valve, thereby improving the safety of the energy storage cabinet and preventing the combustible gas from affecting other storage compartments and causing a chain reaction. The structure of air intake at the lower end and exhaust at the upper end can quickly reduce the concentration of the combustible gas in the storage compartment.

[0026] In addition, the electrical compartment of the energy storage cabinet is arranged at one end of the placement compartment group in the first direction, so that the battery module can be separated from the control device in the electrical compartment to avoid mutual influence between the two. An air inlet is arranged on the side of the electrical compartment adjacent to the placement compartment group, and a first air outlet is arranged on the side of the electrical compartment away from the placement compartment group. The air cooling device can be used to guide cold air to flow in from the air inlet, and hot air can be discharged outward from the side of the electrical compartment away from the placement compartment group. The use of air cooling to dissipate the heat of the electrical compartment can not only reduce the cost of the energy storage container, but also avoid the heat generated by the electrical compartment from causing thermal effects on the battery module in the placement compartment, thereby preventing thermal runaway of the battery module. Providing multiple air inlets can improve the heat dissipation efficiency, make the heat dissipation more uniform, and avoid high temperature accumulation in the electrical compartment.

[0027] In addition, the liquid cooling tube groups arranged at both ends of the placement compartment group in the second direction can cooperate with the liquid cooling device to perform liquid cooling on multiple battery modules. The two liquid cooling tube groups are conducive to improving the heat exchange efficiency. Since the heat dissipation of the battery module is large, the use of liquid cooling for the battery module in the placement compartment can quickly reduce the temperature of the battery module and avoid thermal runaway. The use of air cooling devices for air cooling of the electrical compartment is conducive to reducing costs.

[0028] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0030] Figure 1 The utility model provides a three-dimensional energy storage container according to an embodiment of the present invention. Figure 1 ;

[0031] Figure 2 The utility model provides a three-dimensional energy storage container according to an embodiment of the present invention. Figure 2 ;

[0032] Figure 3 The utility model provides a three-dimensional energy storage container according to an embodiment of the present invention. Figure 3 ;

[0033] Figure 4 It is a right view of an energy storage container according to an embodiment of the utility model;

[0034] Figure 5 It is a left view of an energy storage container according to an embodiment of the utility model;

[0035] Figure 6 This is a three-dimensional diagram of an energy storage container according to an embodiment of the present utility model without a hatch and a top plate;

[0036] Figure 7 is a three-dimensional diagram of an energy storage cabinet according to an embodiment of the utility model;

[0037] Figure 8 It is a schematic diagram of exhausting the energy storage cabinet in the energy storage container through the air intake valve and the exhaust valve according to an embodiment of the utility model;

[0038] Fig. 9 It is a schematic diagram of heat dissipation of an electrical compartment of an energy storage container according to an embodiment provided by the utility model;

[0039] Fig.10 yes Fig. 9 A magnified view of the electrical compartment;

[0040] Fig.11 It is a three-dimensional diagram of a partial structure of an energy storage container according to an embodiment of the utility model;

[0041] Fig.12 yes Fig.11 The main view of

[0042] Fig.13 It is a stereoscopic diagram of an input pipe group and an output pipe group in an energy storage container according to an embodiment of the utility model;

[0043] Fig.14 This is a schematic diagram of a battery module in an energy storage container according to an embodiment of the present invention being connected to an input pipe group and an output pipe group respectively;

[0044] Fig.15 It is a partial enlarged view of an input pipe group according to an embodiment of the utility model.

[0045] Reference numerals

[0046] Energy storage container 100;

[0047] Energy storage cabinet 10; top plate 111; storage compartment group 12; storage compartment 121; accommodating chamber 122; air inlet valve 123; exhaust valve 124; hatch 125;

[0048] Electrical compartment 13; air guide channel 131; first channel 132; second channel 133; air inlet 134; first air outlet 135; second air outlet 136; third air outlet 137; second installation cavity 139; second installation cavity 139; explosion-proof valve 14; first partition plate 15; second partition plate 16;

[0049] Battery module 20; water inlet 21; water outlet 22;

[0050] Control device 30; DCDC component 31;

[0051] Wind guide plate 41; first fan 42;

[0052] Liquid cooling device 50; second fan 51;

[0053] Input pipe group 61; first pipe 611; second pipe 612; third pipe 613; first connecting pipe 614; output pipe group 62; fourth pipe 621; fifth pipe 622; sixth pipe 623; second connecting pipe 624; speed regulating valve 63; exhaust mechanism 64;

[0054] Fire fighting equipment 70;

[0055] Electrical device 80. DETAILED DESCRIPTION

[0056] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0057] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0058] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0059] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0060] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0061] The energy storage container 100 according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0062] like Figures 1 to 15 As shown, the energy storage container 100 according to the embodiment of the utility model includes: an energy storage cabinet 10, a plurality of battery modules 20, a control device 30, an air cooling device, a liquid cooling device 50 and two liquid cooling pipe groups.

[0063] Specifically, the energy storage cabinet 10 includes a storage compartment group 12 and an electrical compartment 13. The storage compartment group 12 includes a plurality of storage compartments 121 arranged along a first direction. Each storage compartment 121 is provided with an air inlet valve 123 and an air outlet valve 124. In the height direction of the energy storage cabinet 10, the air inlet valve 123 is lower than the air outlet valve 124. The electrical compartment 13 is located at one end of the storage compartment group 12 in the first direction. The electrical compartment 13 is provided with air inlets 134 on both sides adjacent to the storage compartment group 12, and a first air outlet 135 is provided on the side of the electrical compartment 13 away from the storage compartment group 12. A plurality of battery modules 20 are arranged in the storage compartment 121 along the height direction of the energy storage cabinet 10. The control device 30 is provided in the electrical compartment 13 and is electrically connected to the plurality of battery modules 20. The air cooling device is provided in the electrical compartment 13 to guide the gas entering from the air inlet 134 to the first air outlet 135. The liquid cooling device 50 is provided in the electrical compartment 13. Two liquid cooling pipe groups are arranged at both ends of the storage compartment group 12 in the second direction, and each liquid cooling pipe group connects the liquid cooling device 50 and multiple battery modules 20 to form a liquid cooling circulation loop. The first direction, the second direction and the height direction of the energy storage cabinet 10 are perpendicular.

[0064] In other words, the energy storage container 100 according to the embodiment of the utility model is mainly composed of an energy storage cabinet 10, a plurality of battery modules 20, a control device 30, an air cooling device, a liquid cooling device 50 and two liquid cooling pipe groups.

[0065] As a large-scale equipment, the energy storage cabinet 10 is usually placed vertically. For the convenience of explanation, the first direction and the second direction can be defined as mutually perpendicular horizontal directions, and the third direction is a vertical direction. Therefore, the third direction is equivalent to the height direction of the energy storage cabinet 10.

[0066] The cabinet body of the energy storage cabinet 10 can be divided into a plurality of storage compartments 121 and an electrical compartment 13, and the plurality of storage compartments 121 can form a storage compartment group 12. The plurality of storage compartments 121 can be arranged in a straight line, and the arrangement direction of the plurality of storage compartments 121 is a first direction, so that in the first direction, at least one side surface of each storage compartment 121 will face other storage compartments 121, and in a second direction perpendicular to the first direction, the two side surfaces of each storage compartment 121 will not be blocked by other storage compartments 121.

[0067] The placement chamber 121 may be provided with a receiving cavity 122 suitable for receiving the battery module 20, and a plurality of battery modules 20 may be arranged along a third direction in the placement chamber 121. The battery module 20 releases heat when working.

[0068] In the first direction, the placement compartment group 12 has two ends, and one end of the placement compartment group 12 may be provided with an electrical compartment 13. The electrical compartment 13 may contain a control device 30 and a liquid cooling device 50, and the control device 30 may be used to control the battery module 20 in the placement compartment 121, and may also be used as a control structure of the energy storage container 100 to control the energy storage container 100. The control device 30 releases heat during operation.

[0069] Each storage compartment 121 may be provided with an air inlet 134 and an air outlet that are connected to its own accommodating cavity 122. An air inlet valve 123 may be provided at the air inlet 134, and an air outlet valve may be provided at the air outlet. The air inlet valve 123 and the air outlet valve on each storage compartment 121 may form an exhaust assembly, and the air inlet valve 123 and the exhaust valve 124 in each exhaust assembly may be opened or closed synchronously to connect the storage compartment 121 with the outside or to seal the storage compartment 121.

[0070] Since each storage compartment 121 is provided with an air inlet valve 123 and an air outlet valve, when the concentration of the combustible gas (such as carbon monoxide) in any storage compartment 121 exceeds the first threshold, the corresponding air inlet valve 123 and the air outlet valve 124 can be opened to reduce the concentration of the combustible gas in the storage compartment 121 and prevent explosion in the compartment. The energy storage container 100 is provided with a plurality of air inlet valves 123 and air outlet valves 124 as a whole, replacing the existing large exhaust structure, which can improve the space utilization of the cabinet body and reduce the floor space occupied by the energy storage cabinet 10 and the energy storage cabinet 10.

[0071] Optionally, an exhaust fan may be provided in the exhaust valve 124 , which may accelerate the airflow in the storage chamber 121 after the exhaust valve 124 is opened, thereby quickly reducing the concentration of the combustible gas in the storage chamber 121 .

[0072] In addition, in the height direction of the energy storage cabinet 10, that is, in the third direction, the air intake valve 123 can be lower than the exhaust valve 124. Since the temperature of the combustible gas is relatively high, the high-temperature gas will accumulate on the top of the cabinet body. The air intake valve 123 is set lower than the exhaust valve 124. On the one hand, the combustible gas accumulated on the top of the storage compartment 121 can be quickly discharged from the exhaust valve 124 nearby, shortening the exhaust path compared with the traditional large exhaust structure. On the other hand, the gas entering from the air intake valve 123 can pass through the entire storage compartment 121 from bottom to top, which can well dilute the combustible gas in the entire storage compartment 121 and achieve the purpose of quickly reducing the concentration of the combustible gas.

[0073] It can be defined that the two side surfaces of the electrical compartment 13 in the second direction can be the front and back surfaces of the electrical compartment 13, and the two side surfaces of the placement compartment group 12 in the second direction can be the front and back surfaces of the placement compartment group 12. The front surface of the electrical compartment 13 can be adjacent to the front surface of the placement compartment group 12, and the back surface of the electrical compartment 13 can be adjacent to the back surface of the placement compartment group 12. The front and back surfaces of the electrical compartment 13 can be provided with air inlets 134, respectively, and a side surface of the electrical compartment 13 away from the placement compartment group 12 can be provided with a first air outlet 135. The air inlet 134 and the first air outlet 135 can be communicated with the interior of the electrical compartment 13, respectively.

[0074] The air cooling device may be disposed in the electrical compartment 13, and is used to guide the airflow to flow into the electrical compartment 13 from the air inlet 134, and guide the airflow in the electrical compartment 13 to be discharged from the first air outlet 135. In other words, the external cold air may flow into the electrical compartment 13 from the side of the electrical compartment 13 adjacent to the storage compartment group 12, and then be discharged outward from the side of the electrical compartment 13 away from the storage compartment group 12, so that the exhaust direction of the electrical compartment 13 is opposite to that of the storage compartment group 12, thereby preventing the hot air exhausted from the electrical compartment 13 from having a thermal effect on the battery module 20 in the storage compartment group 12.

[0075] The liquid cooling device 50 can receive a high-temperature cooling medium and output a low-temperature cooling medium, and the cooling medium can release heat in the liquid cooling device 50. In the second direction, liquid cooling pipe groups can be respectively provided at both ends of the placement compartment group 12, one of the two liquid cooling pipe groups connects the liquid cooling device 50 and a plurality of battery modules 20 to form a first liquid cooling circulation loop, and the other of the two liquid cooling pipe groups connects the liquid cooling device 50 and a plurality of battery modules 20 to form a second liquid cooling circulation loop. The battery modules 20 in the energy storage container 100 are connected to the first liquid cooling circulation loop and / or the second liquid cooling circulation loop. The two liquid cooling circulation loops are conducive to increasing the flow rate of the liquid cooling cycle and improving the heat exchange efficiency.

[0076] Therefore, according to the energy storage container 100 of the embodiment of the utility model, an air intake valve 123 and an exhaust valve 124 are arranged on each storage compartment 121 of the cabinet body, and the air intake valve 123 is lower than the exhaust valve 124. In the event of an emergency, independent exhaust of a single compartment can be achieved, so that the combustible gas is quickly discharged from the nearest exhaust valve 124, thereby improving the safety of the energy storage cabinet 10 and preventing the combustible gas from affecting other storage compartments 121 and causing a chain reaction. In addition, the structure of air intake at the lower end and exhaust at the upper end can quickly reduce the concentration of the combustible gas in the storage compartment 121.

[0077] In addition, the electrical compartment 13 of the energy storage cabinet 10 is arranged at one end of the storage compartment group 12 in the first direction, so that the battery module 20 can be separated from the control device 30 in the electrical compartment 13 to avoid mutual influence between the two. An air inlet 134 is arranged on the side adjacent to the storage compartment group 12 of the electrical compartment 13, and a first air outlet 135 is arranged on the side of the electrical compartment 13 away from the storage compartment group 12. The air cooling device can be used to guide cold air to flow in from the air inlet 134, and hot air can be discharged outward from the side of the electrical compartment 13 away from the storage compartment group 12. The electrical compartment 13 is cooled by air cooling, which can not only reduce the cost of the energy storage container 100, but also avoid the heat generated by the electrical compartment 13 from causing thermal effects on the battery module 20 in the storage compartment 121, thereby preventing the battery module 20 from thermal runaway. The provision of multiple air inlets 134 can improve the heat dissipation efficiency, make the heat dissipation more uniform, and avoid the accumulation of high temperature in the electrical compartment 13.

[0078] In addition, the liquid cooling tube groups arranged at both ends of the placement compartment group 12 in the second direction can cooperate with the liquid cooling device 50 to perform liquid cooling on multiple battery modules 20, and the two liquid cooling tube groups are conducive to improving the heat exchange efficiency. Since the heat dissipation of the battery module 20 is large, the use of liquid cooling to dissipate heat for the battery module 20 in the placement compartment 121 can quickly reduce the temperature of the battery module 20 and avoid thermal runaway. The use of an air cooling device to perform air cooling on the electrical compartment 13 is conducive to reducing costs.

[0079] It should be noted that the multiple storage compartments 121 may or may not be connected, which is not limited here. When the receiving cavities 122 corresponding to the multiple storage compartments 121 are connected, the connected passages may be smaller, so that when the combustible gas in a certain storage compartment 121 exceeds the standard, the speed at which the combustible gas enters other storage compartments 121 is slower, so as to reduce the impact on other storage compartments 121. When the receiving cavities 122 corresponding to the multiple storage compartments 121 are not connected to each other, the combustible gas in any storage compartment 121 will not enter other storage compartments 121.

[0080] Optionally, the front and back sides of the electrical compartment 13 may be provided with grilles to form air inlets 134 .

[0081] According to an embodiment of the present invention, the air inlet valve 123 and the air outlet valve 124 on each storage compartment 121 are spaced apart in the second direction.

[0082] Specifically, in a first direction, at least one side surface of each storage compartment 121 faces other storage compartments 121 , and in a second direction perpendicular to the first direction, two side surfaces of each storage compartment 121 are not blocked by other storage compartments 121 .

[0083] Therefore, the air intake valve 123 and the air exhaust valve 124 in each exhaust assembly are spaced apart in the second direction, so as to avoid the exhaust assembly exhausting toward other storage compartments 121 and causing adverse effects on other storage compartments 121 , which is beneficial to improving the safety of the energy storage cabinet 10 .

[0084] like Figure 8 As shown, in the second direction, one side of the placement cabin 121 takes in air along the air intake direction in the figure, and the other side of the placement cabin 121 exhausts air along the exhaust direction in the figure, and both the air intake direction and the exhaust direction are parallel to the second direction.

[0085] According to some other embodiments of the utility model, each storage compartment 121 is provided with doors 125 at both ends in the second direction, one of the two doors 125 of each storage compartment 121 is provided with an air intake valve 123, and the other of the two doors 125 of each storage compartment 121 is provided with an exhaust valve 124.

[0086] Specifically, each storage compartment 121 may be provided with two doors 125 , the two doors 125 may be spaced apart in the second direction, and the doors 125 may be openably and closably disposed on two side surfaces of the storage compartment 121 in the second direction.

[0087] For the sake of convenience, the two doors 125 can be defined as the first door and the second door respectively. The first door can be provided with an air inlet valve 123, which can be close to the bottom of the first door. The second door can be provided with an exhaust valve 124, which can be close to the top of the second door. In this way, it can be ensured that when the storage compartment 121 is exhausted through the exhaust assembly, the combustible gas will not flow toward other storage compartments 121.

[0088] According to some optional embodiments of the present invention, in the height direction of the energy storage cabinet 10, the air intake valve 123 is lower than the center of the storage compartment 121, and the exhaust valve 124 is higher than the center of the storage compartment 121. Thus, the height difference between the air intake valve 123 and the exhaust valve 124 can be increased, which is beneficial for the complete discharge of the combustible gas in the storage compartment 121 and reduces the risk of compartment explosion.

[0089] In some specific embodiments of the present invention, a first partition 15 is provided in the energy storage cabinet 10, and the first partition 15 divides the energy storage cabinet 10 into a plurality of storage compartments 121. In the height direction of the energy storage cabinet 10, the top of the first partition 15 is separated from the top of the energy storage cabinet 10 to form an air passage, and the air passage connects the internal spaces of adjacent storage compartments 121.

[0090] Specifically, a first partition 15 may be provided in the energy storage cabinet 10, and the first partition 15 may separate the energy storage cabinet 10 into a plurality of storage compartments 121. When one first partition 15 is provided in the cabinet, two storage compartments 121 may be separated in the cabinet, and when N first partitions 15 are provided in the cabinet, N+ storage compartments 121 may be separated in the cabinet.

[0091] The cabinet body may be roughly in the shape of a cuboid, the length direction of the cuboid may be a first direction, the width direction of the cuboid may be a second direction, and the height direction of the cuboid may be a third direction. A top plate 111 may be provided on the top of the cabinet body, and a first partition plate 15 and a lower surface of the top plate 111 may be spaced apart to form an air passage to connect two adjacent accommodating chambers 122.

[0092] Therefore, part of the combustible gas can flow into other storage compartments 121 through the gas passage, and exhaust is performed by using the intake valve 123 and the exhaust valve 124 in other storage compartments 121, which is conducive to quickly reducing the concentration of combustible gas in the energy storage cabinet 10.

[0093] According to some optional embodiments of the utility model, a second partition 16 is provided between the storage compartment group 12 and the electrical compartment 13 , the second partition 16 isolates the storage compartment group 12 and the electrical compartment 13 , and an explosion-proof valve 14 is provided at one end of the storage compartment group 12 away from the electrical compartment 13 .

[0094] Specifically, a second partition 16 may be further provided in the energy storage cabinet 10 , and the second partition 16 may isolate the storage compartment group 12 from the electrical compartment 13 to prevent the gas in the storage compartment 121 and the electrical compartment 13 from flowing between each other.

[0095] In the first direction, an electrical compartment 13 is disposed at one end of the compartment group 12 , and an explosion-proof valve 14 is disposed at the other end of the compartment group 12 .

[0096] When the concentration of the combustible gas in the storage chamber group 12 exceeds the second threshold, the explosion-proof valve 14 can be opened to prevent explosion. The second threshold is greater than the first threshold. Optionally, the first threshold and the second threshold can be range values, respectively, and the maximum value within the first threshold range is less than the minimum value within the second threshold range.

[0097] In this embodiment, the explosion-proof valve 14 is arranged on the side of the storage compartment group 12 away from the electrical compartment 13. When the combustible gas is exhausted through the explosion-proof valve 14, the exhaust direction is away from the electrical compartment 13, which can prevent the explosion of the storage compartment group 12 from affecting the electrical compartment 13. At the same time, when an abnormality occurs in the electrical compartment 13, it can also prevent the storage compartment group 12 from being affected, which is beneficial to improving the safety of the energy storage cabinet 10. The second partition 16 isolates the storage compartment group 12 and the electrical compartment 13, and can completely isolate the storage compartment group 12 and the electrical compartment 13 to avoid mutual influence between the two, which is beneficial to improving the safety of the cabinet.

[0098] Optionally, the second partition plate 16 may be an explosion-proof plate. An end of the placement compartment group 12 away from the electrical compartment 13 may be provided with an explosion-proof plate.

[0099] According to some other embodiments of the present invention, the second partition plate 16 is connected to the inner wall surface of the energy storage cabinet 10 to enclose the storage compartment group 12 .

[0100] According to some other embodiments of the utility model, a detector and a controller are provided in each storage compartment 121. The detector is provided in each storage compartment 121 for detecting the concentration of the combustible gas in the storage compartment 121. The controller is electrically connected to the exhaust valve 124, the intake valve 123 and the detector, respectively, so as to control the on and off of the exhaust valve 124 and the intake valve 123 according to the detection results of the detector.

[0101] Specifically, a detector may be provided in the receiving cavity 122 of each storage compartment 121, and the detector may be used as a part of the fire fighting device 70, and the detector may detect the concentration of the combustible gas in the corresponding storage compartment 121. The detector may be connected to the controller and send the detection result to the controller.

[0102] The controller can be connected to each air intake valve 123 and exhaust valve 124 on the cabinet respectively, and control the corresponding air intake valve 123 and exhaust valve 124 to open or close according to the detection result of each detector, so as to realize separate exhaust of each electrical compartment 13 to avoid affecting the battery modules 20 in other placement compartments 121 and causing a chain reaction.

[0103] In this embodiment, since the detector detects each placement compartment 121 individually, the detection space is smaller, so the detection accuracy is more precise and the possibility of misjudgment can be reduced.

[0104] In some specific embodiments, the range of the first threshold value may be ppm<CO concentration≤ppm. When the detector detects that the CO concentration in a storage compartment 121 is within the range of the first threshold value, the controller may control the air intake valve 123 and the exhaust valve 124 to open for exhaust, thereby reducing the CO concentration in the storage compartment 121 and preventing deflagration in the compartment. The threshold range corresponding to the first-level alarm may be adjusted as required.

[0105] In some other embodiments, the explosion-proof valve 14 can be automatically opened when the pressure in the cabinet exceeds a preset pressure, or the explosion-proof valve 14 can be connected to a controller, and the controller controls the opening and closing of the explosion-proof valve 14 according to the detection structure of the detector. When the detector detects that the concentration of the combustible gas in any storage compartment 121 reaches the second threshold, the controller can control the explosion-proof valve 14 to open.

[0106] In some specific embodiments of the present invention, the air cooling device includes: an air guide plate 41, the air guide plate 41 extends along an arc, and in the arc extension direction of the air guide plate 41, the first end of the air guide plate 41 extends toward the air inlet 134, and the second end of the air guide plate 41 extends toward the first air outlet 135.

[0107] Specifically, the electrical compartment 13 may be provided with an air deflector 41, which may be an arc-shaped plate, and the cross section obtained by cutting the arc-shaped plate with a horizontal plane may be arc-shaped. In the direction of the arc line of the air deflector 41, the air deflector 41 may have two ends, namely a first end and a second end of the air deflector 41, the first end of the air deflector 41 may extend toward the air inlet 134, and the second end of the air deflector 41 may extend toward the first air outlet 135.

[0108] There may be an angle between the extension direction of the first end of the air guide plate 41 and the extension direction of the second end. Since the air guide plate 41 extends along an arc, an arc surface may be formed between the first end and the second end of the air guide plate 41, and the arc surface may guide the airflow entering from the air inlet 134 to flow toward the first air outlet 135.

[0109] In this embodiment, the wind guide plate 41 is a purely mechanical structure, which can guide natural wind to dissipate heat to the electrical compartment 13 without power drive, and can also cooperate with an additional blowing structure to dissipate heat to the electrical compartment 13. It has the advantages of simple structure, low cost and small space occupation.

[0110] According to some optional embodiments of the utility model, an air guide channel 131 is provided in the electrical compartment 13, and the air guide channel 131 includes a first channel 132 and a second channel 133. The first channel 132 extends along the second direction, and the second channel 133 extends along the first direction. Both ends of the first channel 132 are respectively connected to two air inlets 134, one end of the second channel 133 is connected to the first channel 132, and the other end of the second channel 133 is connected to the first air outlet 135. The air guide plate 41 and the control device 30 are respectively arranged in the first channel 132.

[0111] In other words, the wind guide channel 131 can be mainly connected by the first channel 132 and the second channel 133. The first channel 132 can extend substantially along the second direction and connect the two air inlets 134, and the second channel 133 can extend substantially along the first direction and connect the first channel 132 and the first air outlet 135.

[0112] A control device 30 and an air guide plate 41 may be provided in the first channel 132. The cold air entering from the air inlet 134 may first pass through the control device 30 to absorb the heat emitted by the control device 30. Then the heat conduction plate may guide the hot air to the second channel 133, so that the hot air flows to the first air outlet 135 through the second channel 133.

[0113] Therefore, the air guide channel 131 of this embodiment utilizes the first channel 132 to connect the two air inlets 134, so that cold air can flow in from both ends of the first channel 132 and be discharged through the shared second channel 133. The structural arrangement of the air guide channel 131 is reasonable, which is conducive to saving space and improving exhaust efficiency.

[0114] According to some other embodiments of the present invention, the number of the air guide plates 41 is two, and the two air guide plates 41 are respectively a first air guide plate and a second air guide plate; in the arc extension direction of the air guide plate 41, one of the first end of the first air guide plate and the first end of the second air guide plate extends in the positive direction of the second direction, and the other extends in the reverse direction of the second direction, and the second end of the first air guide plate and the second end of the second air guide plate extend respectively along the first direction toward the second channel 133.

[0115] Specifically, two air guide plates 41 may be provided in the first channel 132. For the sake of convenience, the two air guide plates 41 may be defined as a first air guide plate and a second air guide plate, respectively. The direction from the back of the electrical compartment 13 toward the front is the positive direction of the second direction, and the direction from the back of the electrical compartment 13 toward the front is the reverse direction of the second direction.

[0116] In the arc extension direction of the first air guide plate, the first end of the first air guide plate can extend in the positive direction of the second direction, and the second end of the first air guide plate can extend in the first direction toward a side away from the placement compartment group 12. Thus, the first air guide plate can guide the airflow entering from the front of the electrical compartment 13 into the second channel 133.

[0117] In the arc extension direction of the second air guide plate, the first end of the second air guide plate can extend in the opposite direction of the second direction, and the second end of the second air guide plate can extend along the first direction toward a side away from the placement compartment group 12. Thus, the first air guide plate can guide the airflow entering from the back of the electrical compartment 13 into the second channel 133.

[0118] Therefore, the two air guide plates 41 of the present embodiment cooperate to guide the airflow entering through the two air inlets 134 of the electrical compartment 13 to flow out of the electrical compartment 13 through a common second channel 133 , which is beneficial to improving heat dissipation efficiency.

[0119] In some specific embodiments of the present invention, the first end of the first air guide plate and the first end of the second air guide plate are connected to the inner wall surface of the first channel 132 away from the second channel 133, and the second end of the first air guide plate is connected to the second end of the second air guide plate.

[0120] Thus, the two air guide plates 41 can be respectively connected to the inner wall surface of the first channel 132 and away from the second channel 133, so that the two air guide plates 41 can be separated from the second channel 133 to form a guide space, which is more conducive to guiding the airflow into the second channel 133.

[0121] In addition, the second ends of the two guide plates are connected, so that the two guide plates can be close to each other, reducing the space occupied by the two guide plates and making the structure of the air cooling device compact.

[0122] Optionally, the curvature of the air guide plate 41 may be .

[0123] According to some optional embodiments of the present utility model, the control device 30 includes:

[0124] Two DCDC components 31 are spaced apart along the second direction, and the air guide plate 41 is located between the two DCDC components 31 .

[0125] Specifically, in the second direction, the two DCDC components 31 can be spaced apart, one of the two DCDC components 31 is close to the air inlet 134 on the front side of the electrical compartment 13, and the other of the two DCDC components 31 is close to the air inlet 134 on the back side of the electrical compartment 13, and the cold air entering from the two air inlets 134 can cool the two DCDC components 31 respectively.

[0126] The air guide plate 41 is arranged between the two DCDC components 31. The air guide plate 41 can be used to guide the heat-absorbed gas into the second channel 133 to avoid the accumulation of high-temperature gas in the first channel 132. The arrangement of the air guide plate 41 is more reasonable, which is conducive to improving the heat dissipation efficiency.

[0127] The DCDC component 31 may be electrically connected to the battery module 20 in the storage compartment 121 , and a DC conversion circuit may be provided in the DCDC component 31 .

[0128] According to some other embodiments of the present invention, the air cooling device further includes a first fan 42 , and the first fan 42 is disposed at the first air outlet 135 and / or the air inlet 134 .

[0129] Specifically, the first fan 42 may be disposed at the first air outlet 135 , or a fan may be disposed at the air inlet 134 , or fans may be disposed at the first air outlet 135 and the air inlet 134 respectively, which is not limited here.

[0130] The first fan 42 can be used to drive the gas in the electrical compartment 13 to flow more quickly, thereby improving the heat dissipation efficiency.

[0131] Optionally, there may be multiple first fans 42 to further improve heat dissipation efficiency.

[0132] For example, the first fan 42 includes an intake fan and an exhaust fan. The two air inlets 134 may be provided with an intake fan respectively, and the first air outlet 135 may be provided with an exhaust fan. Figure 4 As shown, two first air outlets 135 may be provided at a side of the electrical compartment 13 away from the compartment group 12 , and an exhaust fan may be provided at each first air outlet 135 .

[0133] According to some optional embodiments of the utility model, a heat insulating member is provided between the placement compartment group 12 and the electrical compartment 13, so that the heat insulating member can isolate the placement compartment group 12 and the electrical compartment 13, so that the placement compartment group 12 and the electrical compartment 13 do not interfere with each other, avoiding the heat generated by the two from affecting each other, which is beneficial to reducing the generation of condensed water and ensuring that the control device 30 in the electrical compartment 13 and the battery module 20 in the placement compartment group 12 respectively operate safely and stably.

[0134] Optionally, the second partition 16 may be formed as a heat insulating member, that is, the second partition 16 may be a heat insulating plate to prevent the placement compartment group 12 and the electrical compartment 13 from conducting heat.

[0135] According to some other embodiments of the utility model, the electrical compartment 13 is further provided with a first installation cavity 138, a second installation cavity 139 and a third installation cavity 140, the first installation cavity 138 is provided with a liquid cooling device 50, the second installation cavity 139 is provided with a fire-fighting device 70, and the third installation cavity 140 is provided with an electrical device 80. In the first direction, the first installation cavity 138, the second installation cavity 139 and the third installation cavity 140 are located on the side of the first channel 132 away from the placement compartment group 12. In the second direction, the first installation cavity 138, the second installation cavity 139 and the third installation cavity 140 are arranged in sequence, and the second channel 133 is located between the first installation cavity 138 and the third installation cavity 140. In the height direction of the energy storage cabinet 10, the second installation cavity 139 is located at the lower side of the second channel 133. The first installation cavity 138, the second installation cavity 139, the third installation cavity 140 are isolated from the air guide channel 131.

[0136] The electrical compartment 13 may be partitioned into at least four relatively independent spaces, namely, an air guide passage 131 , a first installation cavity 138 , a second installation cavity 139 and a third installation cavity 140 .

[0137] The first channel 132 , the first installation cavity 138 , and the third installation cavity 140 in the air guide channel 131 may connect the top surface and the bottom surface of the energy storage cabinet 10 in the height direction.

[0138] The first channel 132 may be close to the placement compartment group 12, and the second channel 133, the first installation cavity 138, the second installation cavity 139, and the third installation cavity 140 may be arranged on a side of the first channel 132 away from the placement compartment group 12. The first installation cavity 138, the second installation cavity 139, and the third installation cavity 140 may be arranged in sequence along the second direction. The first installation cavity 138 may be close to the front of the electrical compartment 13, and the third installation cavity 140 may be close to the back of the electrical compartment 13.

[0139] In the height direction of the energy storage cabinet 10 , the second channel 133 may be located above the second installation cavity 139 .

[0140] In this embodiment, on the basis of the air guide channel 131 provided in the electrical compartment 13, the electrical compartment 13 is divided into a plurality of installation cavities, and other electrical structures or mechanical mechanisms can be arranged in each installation cavity, so as to make full use of the space of the electrical compartment 13, which is beneficial to improving the space utilization rate of the energy storage container 100.

[0141] In addition, the first installation cavity 138, the second installation cavity 139, the third installation cavity 140 and the air guide channel 131 can be isolated from each other, that is, there is no direct gas exchange between the four, which can prevent the heat generated by the electrical structure or mechanical structure contained in each space from affecting each other.

[0142] The liquid cooling device 50 is arranged in the first installation cavity 138, the fire-fighting device 70 is arranged in the second installation cavity 139, and the electrical device 80 is arranged in the third installation cavity 140. This can isolate the control device 30, the liquid cooling device 50, the fire-fighting device 70 and the electrical device 80 from each other to prevent the heat emitted by each from affecting each other.

[0143] In addition, a liquid cooling device 50 is provided in the energy storage container 100, so that the storage compartment group 12 uses liquid cooling to dissipate heat, and the electrical compartment 13 uses air cooling to dissipate heat, and the two do not interfere with each other. Liquid cooling of the storage compartment 121 is conducive to improving the heat dissipation efficiency and ensuring the smooth operation of the battery module 20, and air cooling of the electrical compartment 13 is conducive to reducing costs. Therefore, the combination of air cooling and liquid cooling can reduce costs and increase efficiency.

[0144] In some specific embodiments of the present invention, a second air outlet 136 and a third air outlet 137 are provided on a side of the electrical compartment 13 away from the placement compartment group 12 , the second air outlet 136 is connected to the first installation cavity 138 , and the third air outlet 137 is connected to the third installation cavity 140 .

[0145] Specifically, the second air outlet 136 and the third air outlet 137 can be arranged on a side surface of the electrical compartment 13 away from the placement compartment group 12. The liquid cooling device 50 arranged in the first installation cavity 138 can dissipate heat through the second air outlet 136, and the electrical device 80 arranged in the third installation cavity 140 can dissipate heat through the third air outlet 137.

[0146] A second fan 51 may be provided at the second air outlet 136. A compressor may be provided in the liquid cooling device 50. Since the compressor generates a large amount of heat when it is working, the second fan 51 may help the liquid cooling device 50 to dissipate heat quickly.

[0147] Optionally, the number of the second air outlet 136 and the number of the third air outlet 137 can be plural.

[0148] For example, Figure 4 As shown, the electrical compartment 13 may be provided with a plurality of second air outlets 136 , which may be arranged in a rectangular array. A grille may be provided on one side of the electrical compartment 13 away from the placement compartment group 12 , and the grille may be arranged corresponding to the third installation cavity 140 to form a third air outlet 137 .

[0149] The heat emitted by the fire-fighting device 70 during operation is relatively small, and no additional air outlet is required.

[0150] The liquid cooling device 50 can be used to dissipate heat from the battery module 20 placed in the compartment group 12 .

[0151] According to some optional embodiments of the present invention, the liquid cooling tube group includes an input tube group 61 and an output tube group 62 .

[0152] Two input tube groups 61 are provided at both ends of the placement compartment group 12 in the second direction, and each input tube group 61 includes a first tube 611, a second tube 612, and a third tube 613 that are connected in sequence. The first tube 611 runs through a plurality of placement compartments 121 and is connected to the liquid cooling device 50, and the third tube 613 is connected to the water inlet 21 of the battery module 20. Two output tube groups 62 are provided at both ends of the placement compartment group 12 in the second direction, and each output tube group 62 includes a fourth tube 621, a fifth tube 622, and a sixth tube 623 that are connected in sequence. The fourth tube 621 runs through a plurality of placement compartments 121 and is connected to the liquid cooling device 50, and the sixth tube 623 is connected to the water outlet 22 of the battery module 20.

[0153] In other words, each liquid cooling tube group can be mainly composed of an input tube group 61 and an output tube group 62, and the energy storage container 100 is provided with two input tube groups 61 and two output tube groups 62. In the second direction, the two input tube groups 61 can be spaced apart at both ends of the placement compartment group 12, and the two output tube groups 62 can be spaced apart at both ends of the placement compartment group 12.

[0154] Each input tube group 61 may be mainly composed of a first tube 611 , a second tube 612 and a third tube 613 , and each output tube group 62 may be mainly composed of a fourth tube 621 , a fifth tube 622 and a sixth tube 623 .

[0155] The first tube 611 and the fourth tube 621 may be respectively connected to the liquid cooling device 50 , and the liquid cooling device 50 may transport cooling medium to the first tube 611 and receive cooling medium in the fourth tube 621 .

[0156] The second tube 612 may be connected between the first tube 611 and the third tube 613, and the output end of the third tube 613 may be connected to the water inlet 21 of the battery module 20. The fifth tube 622 may be connected between the fourth tube 621 and the sixth tube 623, and the input end of the sixth tube 623 may be connected to the water outlet 22 of the battery module 20.

[0157] The cooling channel in the liquid cooling device 50 , the first tube 611 , the second tube 612 , the third tube 613 , the liquid cooling channel in the battery module 20 , the sixth tube 623 , the fifth tube 622 and the fourth tube 621 constitute a cooling circulation loop.

[0158] The low-temperature cooling medium can flow from the liquid cooling device 50 through the first tube 611, the second tube 612 and the third tube 613 in sequence and flow into the battery module 20. A liquid cooling channel can be provided in the battery module 20. When the cooling medium flows through the liquid cooling channel, it can absorb the heat emitted by the battery module 20 and heat up. Then, the high-temperature cooling medium can flow out from the water outlet 22 of the battery module 20 and flow back to the liquid cooling device 50 by passing through the sixth tube 623, the fifth tube 622 and the fourth tube 621 in sequence.

[0159] The first tube 611 and the fourth tube 621 can respectively penetrate multiple storage compartments 121, and each storage compartment 121 can be provided with a second tube 612 and a fifth tube 622 to connect multiple storage compartments 121 in parallel into the above-mentioned cooling circulation loop, and the third tube 613 and the sixth tube 623 can be provided to connect multiple battery modules 20 in the storage compartment 121 in parallel into the cooling circulation loop. The first tube 611 and the fourth tube 621 directly connected to the liquid cooling device 50 can be defined as primary pipelines, the second tube 612 and the fifth tube 622 can be defined as secondary pipelines, and the third tube 613 and the sixth tube 623 can be defined as tertiary pipelines. The flow rate of the primary pipeline can be greater than the flow rate of the secondary pipeline, and the flow rate of the secondary pipeline can be greater than the flow rate of the tertiary pipeline.

[0160] Thus, the first tube 611 and the fourth tube 621 in the input tube group 61 and the output tube group 62 can be used to form a primary pipeline for connecting the liquid cooling device 50 and serving as the main pipeline in the cooling circulation loop of the energy storage container 100 to transport the cooling medium. The second tube 612 and the fifth tube 622 can form a secondary pipeline, and the battery modules 20 in the multiple placement compartments 121 are connected in parallel to the cooling circulation loop. The third tube 613 and the sixth tube 623 can form a tertiary pipeline, and the multiple battery modules 20 in each placement compartment 121 are connected in parallel to the cooling circulation loop, so as to realize hierarchical control of the pipelines, which is conducive to realizing precise temperature control and reducing the overall energy consumption of the energy storage container 100.

[0161] In some specific embodiments of the present invention, the first tube 611 and the fourth tube 621 extend respectively along the first direction, the second tube 612 and the fifth tube 622 extend respectively along the height direction of the energy storage cabinet 10, each first tube 611 is connected to multiple second tubes 612 arranged along the first direction, each second tube 612 is connected to multiple third tubes 613 arranged along the height direction of the energy storage cabinet 10, each fourth tube 621 is connected to multiple fifth tubes 622 arranged along the first direction, and each fifth tube 622 is connected to multiple sixth tubes 623 arranged along the height direction of the energy storage cabinet 10.

[0162] Specifically, when the number of the placement compartments 121 is N, each input tube group 61 may include a first tube 611, N second tubes 612, and N*M third tubes 613. In each input tube group 61, the first tube 611 may penetrate the N placement compartments 121 along the first direction, the N second tubes 612 may be arranged along the first direction and communicated with the first tube 611 respectively, the N second tubes 612 may be arranged in the N placement compartments 121 one by one, and each second tube 612 may be provided with M third tubes 613, and the M third tubes 613 may be arranged along the third direction to communicate with the M battery modules 20 arranged along the third direction.

[0163] Each output tube group 62 may include a fourth tube 621, N fifth tubes 622, and N*M sixth tubes 623. In each output tube group 62, the fourth tube 621 may penetrate the N placement compartments 121 along the fourth direction, the N fifth tubes 622 may be arranged along the fourth direction and communicated with the fourth tube 621 respectively, the N fifth tubes 622 may be arranged in the N placement compartments 121 in a one-to-one correspondence, and each fifth tube 622 may be provided with M sixth tubes 623, and the M sixth tubes 623 may be arranged along the sixth direction to communicate with the M battery modules 20 arranged along the sixth direction.

[0164] After the low-temperature cooling medium flows out of the cooling device, it can flow in the first tube 611 along the first direction, then flow into the second tube 612 along the third direction, and then flow into each battery module 20 through the third tube 613. The high-temperature cooling medium flowing out of the battery module 20 can first flow into the fifth tube 622 through the sixth tube 623, then flow into the fourth tube 621 along the third direction in the fifth tube 622, and then flow in the fourth tube 621 along the first direction, and finally flow back to the cooling device.

[0165] In this embodiment, the arrangement of the primary pipeline, the secondary pipeline, and the tertiary pipeline in the input pipe group 61 and the output pipe group 62 is simpler, better adapted to the structure of the energy storage cabinet 10, effectively forming multi-level control of the pipeline, shortening the cooling path of each battery module 20, and improving the cooling efficiency.

[0166] According to some other embodiments of the present invention, the first tube 611 is located at the top of the storage compartment group 12 , and the fourth tube 621 is located at the bottom of the storage compartment group 12 .

[0167] Among them, the cooling medium flowing in the first tube 611 is a low-temperature cooling medium, and the cooling medium flowing in the fourth tube 621 is a high-temperature cooling medium. Therefore, the low-temperature cooling medium flows upward from the bottom of the energy storage cabinet 10 into the battery module 20, and the high-temperature cooling medium flowing out of the battery module 20 converges upward into the fourth tube 621 to avoid heat accumulation in the lower part of the energy storage cabinet 10.

[0168] Since the energy storage cabinet 10 is usually placed vertically on the installation surface, the heat dissipation effect of the top of the energy storage cabinet 10 is better than that of the bottom. Therefore, setting the first tube 611 lower than the fourth tube 621 can not only stagger the low-temperature pipeline and the high-temperature pipeline to avoid mutual influence, but also help to improve the heat dissipation effect of the energy storage container 100.

[0169] Optionally, the first tube 611 can be located below the battery module 20, and the fourth tube 621 can be located above the battery module 20. The first tube 611 and the fourth tube 621 are installed by utilizing the space below and above the battery module 20, which makes the structural arrangement more reasonable and helps save space.

[0170] In some specific embodiments of the utility model, in the second direction, the second tube 612 is located on the side of the corresponding first tube 611 away from the battery module 20, the fifth tube 622 is located on the side of the corresponding fourth tube 621 away from the battery module 20, a first connecting tube 614 is provided between the ends of the first tube 611 and the second tube 612, and a second connecting tube 624 is provided between the ends of the fourth tube 621 and the fifth tube 622.

[0171] In some optional embodiments, two groups of battery modules 20 may be provided in each placement compartment 121, the battery modules 20 in each group of battery modules 20 are arranged along a third direction, the two groups of battery modules 20 are arranged along a second direction, one of the two liquid cooling pipe groups is connected to a group of battery modules 20 in each placement compartment 121, and the other of the two liquid cooling pipe groups is connected to another group of battery modules 20 in each placement compartment 121.

[0172] In some specific embodiments, a corresponding connecting pipeline may be further provided between the first tube 611 and the liquid cooling device 50, and a corresponding connecting pipeline may be further provided between the fourth tube 621 and the liquid cooling device 50. For example, the inlet and outlet of the liquid cooling device 50 may be located at the bottom of the liquid cooling device 50, and the first tube 611 separated from the outlet of the liquid cooling device 50 in the second direction may be connected to the outlet of the liquid cooling device 50 through the corresponding connecting pipeline, and the fourth tube 621 separated from the inlet of the liquid cooling device 50 in the second direction and / or the third direction may be connected to the inlet of the liquid cooling device 50 through the corresponding connecting pipeline.

[0173] In other words, in the second direction, the second tube 612 is farther away from the battery module 20 than the corresponding first tube 611, and the fifth tube 622 is farther away from the battery module 20 than the corresponding fourth tube 621. Since the first connecting tube 614 connects the second tube 612 and the first tube 611, and the second connecting tube 624 connects the fourth tube 621 and the fifth tube 622, at least a portion of the first connecting tube 614 can protrude outward from the first tube 611 along the second direction, and at least a portion of the second connecting tube 624 can protrude outward from the fourth tube 621 along the second direction.

[0174] For example, the first connecting tube 614 and the second connecting tube 624 can be L-shaped, respectively, and the first connecting tube 614 and the second connecting tube 624 can respectively include a first tube 611 section and a second tube 612 section that are connected to each other, the first tube 611 section can extend along the second direction, the second tube 612 section can extend along the first direction, one end of the first tube 611 section is connected to the first tube 611 or the fourth tube 621, the other end of the first tube 611 section is connected to one end of the second tube 612 section, and the other end of the second tube 612 section is connected to the second tube 612 or the fifth tube 622.

[0175] The bottom end of the second tube 612 may be connected to the first connection tube 614 , and the top end of the fifth tube 622 may be connected to the second connection tube 624 .

[0176] In this embodiment, the first connecting tube 614 is provided to connect the first tube 611 and the second tube 612 spaced apart in the second direction, so that the arrangement of the input tube group 61 is more compact, and the second connecting tube 624 is provided to connect the fourth tube 621 and the fifth tube 622 spaced apart in the second direction, so that the arrangement of the output tube group 62 is more compact.

[0177] According to some optional embodiments of the utility model, a speed regulating valve 63 is provided on the first connecting pipe 614, which can adjust the flow rate of the cooling medium in the corresponding second pipe 612, and then the flow rate of the cooling medium in the multiple battery modules 20 in each placement compartment 121 is overall regulated, and the regulation efficiency is high.

[0178] Optionally, the speed regulating valve 63 may include but is not limited to a manual valve and an electric valve.

[0179] According to some other embodiments of the present invention, an exhaust mechanism 64 is provided on the first connecting pipe 614. When there is air in the cooling circulation loop, the exhaust mechanism 64 can exhaust the air in the loop when the liquid cooling device 50 starts to operate to ensure cooling efficiency.

[0180] In some optional embodiments, when it is necessary to monitor the flow rate, the exhaust mechanism 64 can be removed and a flow meter can be installed in its place to monitor the flow rate.

[0181] According to some other embodiments of the present invention, each second tube 612 is connected to a plurality of third tubes 613 arranged along the height direction of the energy storage cabinet 10, and the diameters of the plurality of third tubes 613 are the same or different, and each fifth tube 622 is connected to a plurality of sixth tubes 623 arranged along the height direction of the energy storage cabinet 10, and the diameters of the plurality of sixth tubes 623 are the same or different.

[0182] In other words, the diameters of the plurality of third tubes 613 connected to each second tube 612 may be the same or different. When the diameters of the plurality of third tubes 613 are different, the corresponding flow rates are also different. The greater the flow rate in the third tube 613, the higher the heat dissipation efficiency of the battery module 20. The diameter of the sixth tube 623 may be adapted to the corresponding third tube 613.

[0183] In this embodiment, the diameters of the third tubes 613 and the sixth tubes 623 can be designed according to the heat dissipation requirements to achieve different heat dissipation purposes. Compared with the use of separate regulating valves in traditional technologies, it can not only meet the actual heat dissipation requirements of battery modules 20 placed in different positions, but also achieve the purpose of cooling and increasing efficiency.

[0184] For example, among the multiple third tubes 613, the diameter of the third tube 613 near the top of the energy storage cabinet 10 may be larger than the diameter of the third tube 613 near the bottom of the energy storage cabinet 10. Since heat accumulates at the top of the energy storage cabinet 10, the battery module 20 near the top of the energy storage cabinet 10 has a higher heat dissipation requirement. A third tube 613 with a larger diameter may be used to increase the flow rate of the cooling medium, thereby improving the heat dissipation efficiency, avoiding excessive temperature of the battery module 20 at the top of the energy storage cabinet 10, and facilitating improving the temperature uniformity of the energy storage container 100.

[0185] In some specific embodiments of the present invention, each first pipe 611 is provided with a water pump, thereby increasing the flow rate of the cooling medium in each first pipe 611 , which is beneficial to improving the heat exchange efficiency of the energy storage container 100 .

[0186] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An energy storage container, characterized in that: include: An energy storage cabinet, comprising: A storage compartment group, the storage compartment group comprising a plurality of storage compartments arranged along a first direction, each of the storage compartments being provided with an air inlet valve and an air outlet valve, and the air inlet valve being lower than the air outlet valve in a height direction of the energy storage cabinet; and An electrical compartment, the electrical compartment being located at one end of the storage compartment group in the first direction, the electrical compartment being provided with air inlets on two sides adjacent to the storage compartment group, and a first air outlet on a side of the electrical compartment away from the storage compartment group; A plurality of battery modules, wherein the plurality of battery modules are arranged in the storage compartment along the height direction of the energy storage cabinet; a control device, wherein the control device is disposed in the electrical compartment and is electrically connected to the plurality of battery modules; an air cooling device, the air cooling device being arranged in the electrical compartment to guide the gas entering from the air inlet to the first air outlet; a liquid cooling device, the liquid cooling device being arranged in the electrical compartment; and Two liquid cooling pipe groups, the two liquid cooling pipe groups are arranged at two ends of the placement compartment group in the second direction, and each of the liquid cooling pipe groups is connected to the liquid cooling device and the plurality of battery modules to form a liquid cooling circulation loop; The first direction, the second direction and the height direction of the energy storage cabinet are perpendicular.

2. The energy storage container according to claim 1, characterized in that: The air inlet valve and the air exhaust valve on each of the storage compartments are spaced apart in the second direction.

3. The energy storage container according to claim 1, characterized in that: Each of the storage compartments is provided with doors at both ends in the second direction, one of the two doors of each storage compartment is provided with the air inlet valve, and the other of the two doors of each storage compartment is provided with the air exhaust valve.

4. The energy storage container according to claim 1, characterized in that: A first partition is provided in the energy storage cabinet, and the first partition separates the energy storage cabinet into a plurality of the placement compartments. In the height direction of the energy storage cabinet, the top of the first partition is spaced apart from the top of the energy storage cabinet to form an air passage, and the air passage communicates with the internal spaces of adjacent placement compartments.

5. The energy storage container according to claim 4, characterized in that: A second partition is provided between the storage compartment group and the electrical compartment, the second partition isolating the storage compartment group and the electrical compartment, and an explosion-proof valve is provided at one end of the storage compartment group away from the electrical compartment.

6. The energy storage container according to claim 1, characterized in that: A detector and a controller are provided in each of the storage compartments. The detector is provided in each of the storage compartments for detecting the concentration of the combustible gas in the storage compartment. The controller is electrically connected to the exhaust valve, the intake valve and the detector, respectively, so as to control the on and off of the exhaust valve and the intake valve according to the detection results of the detector.

7. The energy storage container according to claim 1, characterized in that: The air cooling device comprises: An air guide plate extends along an arc line. In the direction of extension of the arc line of the air guide plate, a first end of the air guide plate extends toward the air inlet, and a second end of the air guide plate extends toward the first air outlet.

8. The energy storage container according to claim 7, characterized in that: An air guide channel is provided in the electrical compartment, and the air guide channel includes a first channel and a second channel. The first channel extends along the second direction, and the second channel extends along the first direction. Both ends of the first channel are respectively connected to the two air inlets, one end of the second channel is connected to the first channel, and the other end of the second channel is connected to the first air outlet. The air guide plate and the control device are respectively arranged in the first channel.

9. The energy storage container according to claim 8, characterized in that: The number of the air guide plates is two, and the two air guide plates are respectively a first air guide plate and a second air guide plate; In the arc extension direction of the air guide plate, one of the first end of the first air guide plate and the first end of the second air guide plate extends in the positive direction of the second direction, and the other extends in the reverse direction of the second direction, and the second end of the first air guide plate and the second end of the second air guide plate extend toward the second channel along the first direction respectively.

10. The energy storage container according to claim 9, characterized in that: The first end of the first air guide plate and the first end of the second air guide plate are connected to the inner wall surface of the first channel away from the second channel, and the second end of the first air guide plate is connected to the second end of the second air guide plate.

11. The energy storage container according to claim 8, characterized in that: The control device comprises: Two DCDC components are spaced apart along the second direction, and the air guide plate is located between the two DCDC components.

12. The energy storage container according to claim 8, characterized in that: The electrical compartment is further provided with a first installation cavity, a second installation cavity and a third installation cavity, the first installation cavity is provided with the liquid cooling device, the second installation cavity is provided with a fire-fighting device, and the third installation cavity is provided with an electrical device; In the first direction, the first installation cavity, the second installation cavity and the third installation cavity are located on a side of the first channel away from the placement chamber group; In the second direction, the first mounting cavity, the second mounting cavity and the third mounting cavity are arranged in sequence, and the second channel is located between the first mounting cavity and the third mounting cavity; In the height direction of the energy storage cabinet, the second installation cavity is located at the lower side of the second channel; The first installation cavity, the second installation cavity, the third installation cavity and the air guide channel are isolated from each other.

13. The energy storage container according to claim 12, characterized in that: A second air outlet and a third air outlet are provided on a side of the electrical compartment away from the placement compartment group. The second air outlet is communicated with the first installation cavity, and the third air outlet is communicated with the third installation cavity.

14. The energy storage container according to claim 1, characterized in that: The liquid cooling tube group comprises: An input pipe group, two of the input pipe groups are arranged at both ends of the placement compartment group in the second direction, each of the input pipe groups includes a first pipe, a second pipe and a third pipe that are connected in sequence, the first pipe runs through a plurality of the placement compartments and is connected to the liquid cooling device, and the third pipe is connected to the water inlet of the battery module; Output tube groups, two of the output tube groups are arranged at both ends of the placement compartment group in the second direction, each of the output tube groups includes a fourth tube, a fifth tube and a sixth tube that are connected in sequence, the fourth tube runs through multiple placement compartments and is connected to the liquid cooling device, and the sixth tube is connected to the water outlet of the battery module.

15. The energy storage container according to claim 14, characterized in that: The first tube and the fourth tube extend respectively along the first direction, and the second tube and the fifth tube extend respectively along the height direction of the energy storage cabinet. Each of the first tubes is connected to a plurality of the second tubes arranged along the first direction, and each of the second tubes is connected to a plurality of the third tubes arranged along the height direction of the energy storage cabinet. Each of the fourth tubes is communicated with a plurality of the fifth tubes arranged along the first direction, and each of the fifth tubes is communicated with a plurality of the sixth tubes arranged along the height direction of the energy storage cabinet.

16. The energy storage container according to claim 14, characterized in that: The first tube is located at the top of the placement chamber group, and the fourth tube is located at the bottom of the placement chamber group.

17. The energy storage container according to claim 14, characterized in that: In the second direction, the second tube is located on a side of the corresponding first tube away from the battery module, the fifth tube is located on a side of the corresponding fourth tube away from the battery module, a first connecting tube is provided between the ends of the first tube and the second tube, and a second connecting tube is provided between the ends of the fourth tube and the fifth tube.

18. The energy storage container according to claim 17, characterized in that: The first connecting pipe is provided with a speed regulating valve.

19. The energy storage container according to claim 17, characterized in that: The first connecting pipe is provided with an exhaust mechanism.

20. The energy storage container according to claim 14, characterized in that: Each of the first pipes is provided with a water pump.

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