CN220895663U

CN220895663U - Cabinet type air-cooled energy storage system

Info

Publication number: CN220895663U
Application number: CN202322392825.XU
Authority: CN
Inventors: 刘建军; 曾德顺; 陈炜灿; 廖意辉
Original assignee: Shenzhen Ancheng New Energy Co ltd
Current assignee: Shenzhen Ancheng New Energy Co ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-05-03
Anticipated expiration: 2033-09-01

Abstract

The utility model discloses a cabinet type air-cooled energy storage system, which comprises a cabinet body, a temperature regulating device and a plurality of battery modules, wherein the cabinet body is provided with a battery compartment, a first air channel and a second air channel, and the first air channel and the second air channel are both communicated with the battery compartment; the battery modules are arranged in the battery compartment, each battery module is provided with a heat dissipation air duct, one end of each heat dissipation air duct is communicated with the first air duct, and the other end of each heat dissipation air duct is communicated with the second air duct; the temperature adjusting device is arranged on the cabinet body and is provided with a heat exchange air channel and a heat exchange device arranged in the heat exchange air channel, an air outlet of the heat exchange air channel is communicated with the first air channel, and a return air inlet of the heat exchange air channel is communicated with the second air channel, so that the heat exchange air channel, the first air channel, the heat dissipation air channel and the second air channel form a circulating air channel for circulating air in the cabinet body. According to the technical scheme, the heat dissipation effect of the battery compartment can be improved.

Description

Cabinet type air-cooled energy storage system

Technical Field

The utility model relates to the technical field of energy storage systems, in particular to a cabinet type air-cooled energy storage system.

Background

The cabinet type energy storage system is generally provided with a heat dissipation system, and the conventional heat dissipation system is liquid cooling heat dissipation or air cooling heat dissipation, wherein the liquid cooling system is required to be provided with a liquid cooling pipeline in the battery box, so that the battery box is complex in structure, large in weight and inconvenient to carry and maintain. When the air cooling system scheme is adopted, at present, some schemes adopt air conditioning refrigeration to inject cold air into the battery compartment so as to cool the battery box, but the air flowability in the battery compartment is poor, and the actual heat dissipation effect is poor.

Disclosure of utility model

The utility model mainly aims to provide a cabinet type air-cooled energy storage system which aims to improve the heat dissipation effect of a battery compartment.

In order to achieve the above object, the cabinet type air-cooled energy storage system according to the present utility model includes:

The cabinet body is provided with a battery compartment, a first air channel and a second air channel, and the first air channel and the second air channel are communicated with the battery compartment;

The battery modules are arranged in the battery compartment, each battery module is provided with a heat dissipation air duct, one end of each heat dissipation air duct is communicated with the first air duct, and the other end of each heat dissipation air duct is communicated with the second air duct; and

The temperature adjusting device is arranged on the cabinet body and is provided with a heat exchange air duct and a heat exchange device arranged in the heat exchange air duct, an air outlet of the heat exchange air duct is communicated with the first air duct, and a return air inlet of the heat exchange air duct is communicated with the second air duct, so that the heat exchange air duct, the first air duct, the heat dissipation air duct and the second air duct form a circulating air duct for circulating air in the cabinet body.

Optionally, the air outlet of the heat exchange air duct is located at an upper position of the cabinet body, the battery compartment is provided with a first side and a second side which are opposite, the first air duct comprises a top air duct and a vertical air duct communicated with the top air duct, the top air duct is communicated with the air outlet, the vertical air duct is located at the first side of the battery compartment and is communicated with the battery compartment, and the second side of the battery compartment is communicated with the second air duct.

Optionally, the cabinet body has the front side opening with install in the cabinet door of front side opening, the second side of battery compartment is located the front side opening is inboard, the cabinet door with form between the second side of battery compartment the second wind channel, temperature regulating device install in the cabinet door, and be located the cabinet door outside.

Optionally, the cabinet type air-cooled energy storage system further comprises a protection plate, the protection plate covers the second side of the battery compartment, the second air duct is at least partially located between the cabinet door and the protection plate, the protection plate is provided with a plurality of ventilation through holes, and the ventilation through holes are communicated with the battery compartment and the second air duct.

Optionally, the quantity of guard plate is a plurality of, and is a plurality of the guard plate is arranged in proper order along upper and lower direction, so as to jointly cover the second side, every the guard plate all independently demountable installation in the cabinet body.

Optionally, the cabinet body is further provided with an electric cabin, the electric cabin is located at one side of the battery cabin, the cabinet type air-cooled energy storage system further comprises a plurality of battery management modules, the battery management modules are in one-to-one correspondence with the battery modules, and the battery management modules are installed on a partition plate between the electric cabin and the battery cabin and located between the cabinet door and the protection plate.

Optionally, the temperature adjusting device further comprises an air outlet nozzle, the air outlet nozzle is installed at the air outlet and extends towards the top air duct, and the air outlet nozzle is correspondingly abutted to the opening of the top air duct, which is far away from the vertical air duct.

Optionally, each battery module includes a supporting base plate and a plurality of battery packs installed on the supporting base plate, a plurality of battery packs are along the width direction interval distribution of supporting base plate, two adjacent battery packs between form the heat dissipation wind channel, every battery module's heat dissipation wind channel all extends from first side to the second side.

Optionally, a baffle is arranged on one side of the battery compartment, the battery compartment is separated from the first air duct by the baffle, at least one ventilation opening is arranged at the position of the baffle corresponding to each battery module, and a fan is arranged at each ventilation opening.

Optionally, the upper portion of the cabinet body is equipped with the hydrogen discharge mouth, the hydrogen discharge mouth with first wind channel intercommunication, cabinet formula forced air cooling energy storage system still includes the hydrogen discharge subassembly, the hydrogen discharge subassembly is located hydrogen discharge mouth department.

According to the technical scheme, the battery compartment, the first air channel and the second air channel are arranged on the cabinet body, so that the first air channel and the second air channel are communicated with the battery compartment, and a heat dissipation air channel is formed in each battery module, one end of the heat dissipation air channel is communicated with the first air channel, and the other end of the heat dissipation air channel is communicated with the second air channel. The temperature adjusting device is also provided with a heat exchange air channel and a heat exchange device positioned in the heat exchange air channel, so that an air outlet of the heat exchange air channel is communicated with the first air channel, and an air return opening of the heat exchange air channel is communicated with the second air channel, so that the heat exchange air channel, the first air channel, the heat dissipation air channel and the second air channel form a circulating air channel for circulating air in the cabinet body. When the air flow in the cabinet body flows to the heat exchange air duct after heat exchange is carried out on the air flow and the battery module through the heat exchange air duct, the air flow can be subjected to heat exchange with the heat exchange device in the heat exchange air duct, so that the air flow temperature is reduced, and when the low-temperature air flow flows to the heat exchange air duct through the first air duct again, the low-temperature air flow can exchange heat with the battery module, and therefore heat dissipation can be carried out on the battery module in a circulating mode. On one hand, the heat exchange device can reduce the temperature of the heat radiation air flow to be flowed to the heat radiation air channel, and can increase the temperature difference between the heat radiation air flow to the heat radiation air channel and the battery module, so that the heat exchange rate between the heat radiation air flow and the battery module can be increased; on the other hand, the heat dissipation air flow in the cabinet body circularly flows in the heat exchange air channel, the first air channel, the heat dissipation air channel and the second air channel, and is not exchanged with the external air of the cabinet body, so that the cold energy loss of the heat dissipation air flow can be reduced, the energy consumption is reduced, the battery compartment can be conveniently sealed, and the sealing performance of the battery compartment is improved. That is, the scheme can improve the heat dissipation effect of the battery module, improve the tightness of the battery compartment and reduce the risk of water inlet short circuit of the battery compartment.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a cabinet air-cooled energy storage system according to the present utility model;

FIG. 2 is a schematic view of the back of the cabinet of FIG. 1;

FIG. 3 is a top view of the enclosure of FIG. 1;

FIG. 4 is a cross-sectional view taken at X-X in FIG. 3;

FIG. 5 is a schematic view of the structure of the door of FIG. 1 when the door is opened;

FIG. 6 is a schematic view of the hidden cabinet door and part of the protection plate in FIG. 5;

FIG. 7 is an enlarged view at A in FIG. 6;

fig. 8 is a schematic view of the structure of the battery module of fig. 6;

fig. 9 is an exploded view of the battery pack and the support base plate of fig. 8.

Reference numerals illustrate:

10. A cabinet body; 11. a battery compartment; 12. an electric compartment; 121. a first side; 122. a second side; 13. a first air duct; 131. a top air duct; 132. a vertical air duct; 14. a second air duct; 15. a baffle; 151. a vent; 152. a blower; 16. a front side opening; 17. a cabinet door; 18. a hydrogen discharge port; 19. a hydrogen removal assembly; 20. a battery module; 201. a heat dissipation air duct; 202. a ventilation gap; 21. a support base plate; 22. a battery pack; 221. a strap assembly; 2211. a metal strap; 2212. a plastic strap; 222. a battery unit; 223. fixing the end plate; 30. a temperature adjusting device; 31. an air supply assembly; 32. a heat exchange air duct; 33. a heat exchange device; 34. an air outlet; 35. an air return port; 36. an air outlet nozzle; 40. a protection plate; 41. a ventilation via; 50. a battery management module; 60. a high pressure tank; 70. fire protection system.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a cabinet type air-cooled energy storage system.

In an embodiment of the present utility model, as shown in fig. 1 to 9, the cabinet type air-cooled energy storage system includes a cabinet 10, a temperature adjusting device 30 and a plurality of battery modules 20, the cabinet 10 is provided with a battery compartment 11, the plurality of battery modules 20 are all installed in the battery compartment 11, the temperature adjusting device 30 is installed in the cabinet 10, and the temperature adjusting device 30 is used for adjusting the temperature of the battery compartment 11, i.e. the temperature adjusting device 30 may be used for reducing (e.g. when the temperature in the battery compartment 11 is too high) or raising (e.g. when the temperature in the battery compartment 11 is too high) the temperature of the battery compartment 11. The temperature adjusting device 30 may have only the function of reducing the temperature of the battery compartment 11, or may have a heating function in addition to the function of reducing the temperature of the battery compartment 11, so that the temperature adjusting device 30 may be selectively used as needed, that is, at least the temperature reducing function may be provided.

In this embodiment, the cabinet body 10 is further provided with a first air duct 13 and a second air duct 14, the first air duct 13 and the second air duct 14 are all communicated with the battery compartment 11, each battery module 20 is formed with a heat dissipation air duct 201, the heat dissipation air duct 201 is communicated between the first air duct 13 and the second air duct 14, that is, one end of the heat dissipation air duct 201 is communicated with the first air duct 13, the other end is communicated with the second air duct 14, so that air flow can flow through the first air duct 13, the heat dissipation air duct 201 and the second air duct 14 (so that air flow can sequentially flow through the first air duct 13, the heat dissipation air duct 201 and the second air duct 14, and also so that air flow sequentially flows through the second air duct 14, the heat dissipation air duct 201 and the first air duct 13). In the use process of the cabinet type air-cooled energy storage system, heat of the battery module 20 can be conducted to the heat dissipation air duct 201, and when air flows through the heat dissipation air duct 201, the flowing air can take away the heat of the heat dissipation air duct 201, so that heat dissipation of the battery module 20 is achieved.

In some embodiments, at least a portion of the battery modules 20 are mounted to the battery compartment 11 at intervals in the up-down direction to form a ventilation gap 202 between two battery modules 20 adjacent to each other in the up-down direction, and the heat dissipation duct 201 and the ventilation gap 202 are both communicated between the first duct 13 and the second duct 14; the thermostat 30 is provided with an air supply assembly 31, the air supply assembly 31 being configured to drive air flow through the first air duct 13, the heat dissipation air duct 201, the ventilation gap 202 and the second air duct 14. Specifically, the air supply assembly 31 includes a motor and fan blades mounted on the motor, and drives the airflow to flow by driving the motor to dissipate heat and rotate. When the air flows from the first air duct 13 to the battery compartment 11, part of the air flows to the ventilation gap 202, part of the air flows to the heat dissipation air duct 201, and finally the air flows from the ventilation gap 202 and the heat dissipation air duct 201 both flow to the second air duct 14. In other embodiments, the vent gap 202 may not be provided, for example, by abutting any two adjacent battery modules 20 together.

According to the technical scheme of the utility model, the battery compartment 11, the first air duct 13 and the second air duct 14 are arranged on the cabinet body 10, so that the first air duct 13 and the second air duct 14 are communicated with the battery compartment 11, and at least part of the battery modules 20 are arranged in the battery compartment 11 at intervals along the up-down direction, so that a ventilation gap 202 is formed between two adjacent battery modules 20. And each of the battery modules 20 is formed with a heat dissipation duct 201, and the heat dissipation duct 201 and the ventilation gap 202 are communicated between the first duct 13 and the second duct 14. This may force airflow through the first duct 13, the heat dissipation duct 201, the ventilation gap 202, and the second duct 14 via the air supply assembly 31. That is, in the use process of the cabinet type air-cooled energy storage system, heat of the battery module 20 can be conducted to the heat dissipation air duct 201 and the ventilation gap 202, and when air flows through the heat dissipation air duct 201 and the ventilation gap 202, heat exchange can be performed between the flowing air and the battery module 20, so that heat of the battery module 20 is taken away, and heat dissipation of the battery module 20 is achieved. Thus, the heat dissipation channels are formed through the battery modules 20, and the ventilation gaps 202 are formed between two adjacent battery modules 20 at intervals, so that the heat dissipation area of the battery modules 20 is increased, and the heat dissipation effect of the battery modules 20 can be improved. And the structure of the battery module 20 can be simplified and the weight of the battery module 20 can be reduced, compared to the manner in which the liquid cooling assembly is provided in the battery module 20.

In some embodiments, each battery module 20 includes a support base plate 21 and a plurality of battery packs 22 mounted on the support base plate 21, the plurality of battery packs 22 are distributed at intervals along the width direction of the support base plate 21, a heat dissipation air duct 201 is formed between two adjacent battery packs 22, one end of the heat dissipation air duct 201 is communicated with the first air duct 13, and the other end is communicated with the second air duct 14; the temperature adjustment device 30 is provided with an air supply assembly 31, the air supply assembly 31 being configured to drive an air flow through the first air duct 13, the heat dissipation air duct 201 and the second air duct 14.

Specifically, the width direction of the support base 21 is perpendicular to the up-down direction of the cabinet 10, the battery pack 22 is mainly composed of a plurality of battery cells 222, the plurality of battery cells 222 of the same battery pack 22 are sequentially connected in series, the plurality of battery packs 22 of the same battery module 20 are sequentially connected in series, and the plurality of battery modules 20 are sequentially connected in series. When the heat dissipation air duct 201 is formed between two adjacent battery packs 22, that is, the battery packs 22 are exposed in the heat dissipation air duct 201, heat generated by the battery packs 22 can be directly transferred into the heat dissipation air duct 201. In this embodiment, the ventilation gap 202 may be formed between any two adjacent battery modules 20, or any two adjacent battery modules 20 may be abutted together. The air supply assembly 31 may be disposed in the first air duct 13, the second air duct 14, or the heat dissipation air duct 201.

In other embodiments, the plurality of battery packs 22 of the same battery module 20 may be connected in parallel, and the plurality of battery modules 20 may be connected in parallel, and may be combined in series or parallel according to actual needs. In other embodiments, a case covering the battery modules 20 may be provided outside the plurality of battery packs 22, and the case may form a plurality of heat dissipation air channels 201.

According to the technical scheme, the battery compartment 11, the first air duct 13 and the second air duct 14 are arranged on the cabinet body 10, so that the first air duct 13 and the second air duct 14 are communicated with the battery compartment 11. Meanwhile, each battery module 20 comprises a supporting bottom plate 21 and a plurality of battery packs 22 mounted on the supporting bottom plate 21, the plurality of battery packs 22 are distributed at intervals along the width direction of the supporting bottom plate 21, a heat dissipation air duct 201 is formed between two adjacent battery packs 22, one end of the heat dissipation air duct 201 is communicated with the first air duct 13, the other end of the heat dissipation air duct 201 is communicated with the second air duct 14, and thus air flow can be driven to flow through the first air duct 13, the heat dissipation air duct 201 and the second air duct 14 through the air supply assembly 31. That is, when the heat generated by the battery pack 22 is conducted to the surface of the battery pack during the use process of the cabinet air-cooled energy storage system, the air flow can directly exchange heat with the battery pack 22 after flowing through the heat dissipation air duct 201, so that the heat of the battery pack 22 is taken away, and the heat dissipation of each battery pack 22 is realized. So make the heat transfer air current direct contact group battery 22 carry out the heat transfer, avoided setting up the condition of middle heat conduction piece, can make the heat of group battery 22 distribute fast, can promote the radiating effect of battery module 20. And the structure of the battery module 20 can be simplified and the weight of the battery module 20 can be reduced, compared to the manner in which the liquid cooling assembly is provided in the battery module 20.

In some embodiments, the temperature adjusting device 30 is provided with a heat exchange air duct 32 and a heat exchange device 33 located in the heat exchange air duct 32, an air outlet 34 of the heat exchange air duct 32 is communicated with the first air duct 13, and an air return 35 of the heat exchange air duct 32 is communicated with the second air duct 14, so that the heat exchange air duct 32, the first air duct 13, the heat dissipation air duct 201 and the second air duct 14 form a circulating air duct for circulating air in the cabinet 10. That is, the air in the cabinet 10 can flow through the first air channel 13, the heat dissipation air channel 201 and the second air channel 14 in sequence and then flow back to the heat dissipation air channel 32, and when the air flows through the heat exchange device 33 in the heat dissipation air channel 32, the air flows and exchanges heat with the heat exchange device 33, so that the temperature of the air flow is reduced, and when the low-temperature air flows through the first air channel 13 again to the heat dissipation air channel 201, the air flows and exchanges heat with the battery module 20, so that the heat dissipation of the battery module 20 is realized. The heat exchange device 33 may be a semiconductor heat exchange device 33 or a compressor heat exchange device 33 (such as an integrated air conditioner), and specifically, a refrigerating end (such as an evaporator) of the heat exchange device 33 is located in the heat exchange air duct 32, and an air duct where a heat dissipation end (such as a condenser) of the heat exchange device 33 is located is communicated with the outside air of the cabinet 10 so as to exchange heat with the heat dissipation end through external air. Optionally, an air supply assembly 31 is disposed in the heat exchange air duct 32.

In this embodiment, the ventilation gap 202 may be formed between any two adjacent battery modules 20, or any two adjacent battery modules 20 may be abutted together. In addition, in other embodiments, the exhaust fan may be provided to drive the external air of the cabinet to flow through the first air duct 13, the heat dissipation air duct 201 and the second air duct 14 in sequence and then be exhausted to the outside of the cabinet.

According to the technical scheme, the battery compartment 11, the first air channel 13 and the second air channel 14 are arranged on the cabinet body 10, so that the first air channel 13 and the second air channel 14 are communicated with the battery compartment 11, a heat dissipation air channel 201 is formed in each battery module 20, one end of the heat dissipation air channel 201 is communicated with the first air channel 13, and the other end of the heat dissipation air channel is communicated with the second air channel 14. The temperature adjusting device 30 is further provided with a heat exchange air duct 32 and a heat exchange device 33 positioned in the heat exchange air duct 32, so that an air outlet 34 of the heat exchange air duct 32 is communicated with the first air duct 13, and an air return 35 of the heat exchange air duct 32 is communicated with the second air duct 14, so that the heat exchange air duct 32, the first air duct 13, the heat dissipation air duct 201 and the second air duct 14 form a circulating air duct for circulating air in the cabinet 10. When the air flow in the cabinet 10 flows to the heat exchange air duct 32 after heat exchange is performed between the air flow and the battery module 20 through the heat exchange air duct 201, the air flow can be subjected to heat exchange with the heat exchange device 33 in the heat exchange air duct 32, so that the temperature of the air flow is reduced, and when the low-temperature air flow flows to the heat exchange air duct 201 through the first air duct 13 again, the air flow can exchange heat with the battery module 20, so that heat dissipation can be performed on the battery module 20 in a circulating manner. On the one hand, the heat exchange device 33 can reduce the temperature of the heat dissipation air flow to be flowed to the heat dissipation air duct 201, and can increase the temperature difference between the heat dissipation air flow flowing to the heat dissipation air duct 201 and the battery module 20, so that the heat exchange rate between the heat dissipation air flow and the battery module 20 can be increased; on the other hand, the heat dissipation air flow in the cabinet 10 circularly flows in the heat exchange air duct 32, the first air duct 13, the heat dissipation air duct 201 and the second air duct 14, and does not exchange with the external air of the cabinet 10, so that the cooling loss of the heat dissipation air flow can be reduced, the energy consumption is reduced, the battery compartment 11 can be conveniently sealed, and the sealing performance of the battery compartment 11 is improved. That is, the scheme can improve the heat dissipation effect of the battery module 20, improve the tightness of the battery compartment 11 and reduce the risk of water inlet short circuit of the battery compartment 11.

In some embodiments, the battery pack 22 includes a strap assembly 221, two fixed end plates 223, and a plurality of battery cells 222, the plurality of battery cells 222 being disposed between the two fixed end plates 223, the strap assembly 221 being sleeved over the two fixed end plates 223 and the plurality of battery cells 222, the fixed end plates 223 being connected to the support base 21. Specifically, the strap assembly 221 is tied to the two fixing end plates 223 and the peripheral sides of the plurality of battery cells 222, so that the plurality of battery cells 222 are fixed by the strap assembly 221 and the two fixing end plates 223, so that the sides of the battery cells 222 are exposed to the heat dissipation air duct 201 as much as possible, the heat of the battery pack 22 can be rapidly dissipated, and the heat dissipation effect of the battery module 20 can be improved.

In some embodiments, the strap assembly 221 includes a metal strap 2211 and a plastic strap 2212, where the metal strap 2211 and the plastic strap 2212 are each sleeved on two fixed end plates 223 and a plurality of battery cells 222 and are spaced apart in a direction perpendicular to the support base plate 21. The battery module further includes a metal tie 2211 and a plastic tie 2212, the metal tie 2211 and the plastic tie 2212 are respectively sleeved on the two fixing end plates 223 and the plurality of battery units 222 between the two fixing end plates 223, and the metal tie 2211 and the plastic tie 2212 are arranged at intervals in the up-down direction. Specifically, the metal strap 2211 is made of steel, and has a main fixing function, while the plastic strap 2212 has an auxiliary fixing function, so that the fixing reliability of the battery unit 222 can be ensured, the weight of the battery pack 22 can be reduced, the weight of the whole battery module 20 can be reduced, and the battery module is convenient to carry and maintain.

In some embodiments, a plurality of mounting positions are arranged in the battery compartment 11 along the up-down direction, each mounting position is provided with one battery module 20, a ventilation gap 202 is formed between any battery module 20 and the bottom plate of the adjacent battery module 20 above, the ventilation gap 202 is communicated with a heat dissipation air duct 201, that is, a ventilation gap 202 is formed between a plurality of battery packs 22 on the battery module 20 and the bottom plate of the adjacent battery module 20 above, and the ventilation gap 202 is communicated with the heat dissipation air duct 201 below. In the battery module 20 above the vent gap 202, the battery pack 22 can conduct heat to the bottom surface of the bottom plate, and can remove both the bottom plate heat of the upper battery module and the heat of the lower battery module 20 as airflow passes through the vent gap 202. Since the ventilation gap 202 communicates with the heat dissipation air duct 201, which is equivalent to enlarging the size of the ventilation gap 202 or the heat dissipation air duct 201, the ventilation amount is advantageously increased, and the partition plate is not required to be disposed above the battery pack 22 to form the ventilation gap 202 with the upper battery module 20, the structure of the battery module 20 can be simplified, and the weight of the battery module 20 can be reduced.

In some embodiments, the battery compartment 11 has opposite first and second sides 121, 122, and the heat dissipation air duct 201 of each battery module 20 extends from the first side 121 to the second side 122, the first air duct 13 communicates with the first side 121, and the second air duct 14 communicates with the second side 122. That is, the battery packs 22 extend along the direction of the first side 121 pointing to the second side 122, so that the heat dissipation air duct 201 directly extends from the first side 121 to the second side 122, and by means of the arrangement, the battery packs 22 on the battery module 20 can be orderly arranged, assembly is convenient, air flow can be facilitated to quickly flow through the heat dissipation air duct 201, and heat dissipation effect is improved. In an embodiment, the plurality of battery cells 222 of the battery pack 22 are sequentially arranged along the direction from the first side 121 toward the second side 122.

In some embodiments, a baffle 15 is disposed on one side of the battery compartment 11, the battery compartment 11 and the first air duct 13 are separated by the baffle 15, at least one ventilation opening 151 is disposed at a position of the baffle 15 corresponding to each battery module 20, and a fan 152 is disposed at each ventilation opening 151. By means of the arrangement, the air flow of the first air duct 13 can be driven to quickly flow into the battery compartment 11 through the fan 152, so that the flow speed of the air flow can be improved, and the heat exchange effect between the heat dissipation air flow and the battery module 20 is improved. One or two ventilation openings 151 may be provided in the baffle 15 at positions corresponding to each battery module 20, or one ventilation opening 151 may be provided in the baffle 15 at positions corresponding to each heat dissipation air duct 201. In one embodiment, the first side 121 is provided with the baffle 15.

In some embodiments, the cabinet 10 has a front opening 16 and a cabinet door 17 mounted to the front opening 16, and the battery compartment 11 is in communication with the front opening 16, i.e., the battery module 20 is removably mounted within the battery compartment 11 through the front opening 16. Optionally, the cabinet body 10 is further provided with an electric cabinet 12, and the electric cabinet 12 is located at one side of the battery cabinet 11 and is communicated with the front opening 16, that is, the battery cabinet 11 and the electric cabinet 12 can be opened simultaneously when the cabinet door 17 is opened, so that the number of cabinet doors 17 can be reduced, and the structure of the battery cabinet is simplified. Of course, in other embodiments, the cabinet doors 17 may also be provided corresponding to the positions of the battery compartment 11 and the electric compartment 12, respectively.

In some embodiments, the second side 122 of the battery compartment 11 is located inside the front side opening 16, the cabinet-type air-cooled energy storage system further includes a protection plate 40, the protection plate 40 covers the second side 122 of the battery compartment 11, the second air duct 14 is located at least partially between the cabinet door 17 and the protection plate 40, the protection plate 40 is provided with a plurality of ventilation through holes 41, and the ventilation through holes 41 are communicated with the battery compartment 11 and the second air duct 14. Specifically, a cabinet door 17 is openably and closably mounted at the front opening 16 for opening or closing the front opening 16 to facilitate the disassembly and assembly of the battery module 20. Through the guard plate 40 between the cabinet door 17 and the battery compartment 11, when the part outside the battery compartment 11 is maintained and overhauled after the cabinet door 17 is opened, the battery module 20 in the battery compartment 11 can be protected through the guard plate 40, and the situation of mistakenly touching the battery module 20 in the maintenance and overhauling process is avoided. Of course, in other embodiments, the first side 121 and the second side 122 of the battery compartment 11 may be arranged in the width direction of the front side opening 16.

In some embodiments, the number of the protection plates 40 is plural, and the plurality of protection plates 40 are sequentially arranged along the up-down direction to collectively cover the second side 122, and each protection plate 40 is independently detachably mounted to the cabinet 10. The size and weight of each protection plate 40 can be reduced, the protection plates 40 are convenient to disassemble and assemble, and when the battery module 20 in the battery compartment 11 needs to be maintained, only the corresponding protection plates 40 are needed, and all the protection plates 40 do not need to be disassembled, so that the battery module is convenient to maintain and overhaul. Optionally, the protection plate 40 is fixed to the cabinet 10 by screws.

In some embodiments, the cabinet air-cooled energy storage system further includes a plurality of battery management modules 50 (BMU, battery Management Unit), where the plurality of battery management modules 50 are in one-to-one correspondence with the plurality of battery modules 20, and the battery management modules 50 are mounted on a partition between the electrical compartment 12 and the battery compartment 11 and between the cabinet door 17 and the protection plate 40. The battery management module 50 is installed by using the partition plate between the electric cabin 12 and the battery cabin 11 and the position between the cabinet door 17 and the protection plate 40, so that the space utilization rate in the cabinet body 10 can be improved, the structure of the battery module 20 can be simplified, and the cabinet door 17 is only required to be opened when the battery management module 50 is maintained and overhauled under normal conditions, so that the maintenance and the overhaul are convenient.

In some embodiments, the temperature adjusting device 30 is further provided with a heat exchange air duct 32 and a heat exchange device 33 located in the heat exchange air duct 32, the air supply assembly 31 is located in the heat exchange air duct 32, an air outlet 34 of the heat exchange air duct 32 is communicated with the first air duct 13, and an air return 35 of the heat exchange air duct 32 is communicated with the second air duct 14, so that the heat exchange air duct 32, the first air duct 13, the heat dissipation air duct 201 and the second air duct 14 form a circulating air duct for circulating air in the cabinet 10. The temperature adjusting device 30 is installed at the cabinet door 17 and is located at the outer side of the cabinet door 17. Specifically, when the cabinet air-cooled energy storage system is placed, the back or side of the cabinet body 10 is usually placed against a wall, and enough operation space is reserved at the front cabinet door 17, so that the temperature adjusting device 30 is installed on the cabinet door 17 and located outside the cabinet door 17, the space at the front side of the cabinet door 17 can be utilized, the space utilization rate of the cabinet air-cooled energy storage system can be improved, and meanwhile, the temperature adjusting device 30 is also convenient to maintain. Of course, in other embodiments, the temperature adjustment device 30 may be provided at the bottom, top or back of the cabinet 10.

In some embodiments, the first air duct 13 includes a top air duct 131 and a vertical air duct 132 communicating with the top air duct 131, the vertical air duct 132 being located on a side of the battery compartment 11 facing away from the front side opening 16 and communicating with the battery compartment 11 (the vent 151), an end of the top air duct 131 facing away from the vertical air duct 132 communicating with the air outlet 34 of the heat exchange air duct 32. By the arrangement, the cold air flowing out of the heat exchange air duct 32 can flow downwards along the vertical air duct 132 after passing through the top air duct 131, so that the cold air can flow to the bottom position of the vertical air duct 132 as much as possible, the battery module 20 positioned at the bottom of the battery compartment 11 can also have cold air passing through, and the heat dissipation uniformity of the upper and lower positions of the battery compartment 11 can be improved. In this embodiment, the temperature adjusting device 30 may be provided on the cabinet door 17, or may be provided on the top or bottom of the cabinet body 10.

In some embodiments, the temperature adjusting device 30 is disposed on the cabinet door 17, and the temperature adjusting device 30 further includes an air outlet nozzle 36, where the air outlet nozzle 36 is installed at the air outlet 34 and extends toward the top air duct 131, and the air outlet nozzle 36 correspondingly abuts against an opening of the top air duct 131 away from the vertical air duct 132. That is, when the cabinet door 17 is opened, the air outlet 36 is away from the top air duct 131 along with the cabinet door 17, and after the cabinet door 17 is closed, the air outlet 36 is correspondingly abutted against the opening of the top air duct 131 away from the vertical air duct 132, so that the air outlet 36 is abutted against the opening of the top air duct 131, and the air flow flowing out of the air outlet 36 is ensured to flow to the top air duct 131. Optionally, a sealing gasket is disposed between the air outlet 36 and the top air duct 131, and the sealing gasket abuts between the air outlet 36 and the top air duct 131, so as to prevent the cold air flow from leaking into the second air duct 14.

In some embodiments, the air outlet 34 of the heat exchange air duct 32 is located at an upper position of the cabinet 10, the battery compartment 11 has opposite first and second sides 121, 122, the first air duct 13 includes a top air duct 131 and a vertical air duct 132 communicating with the top air duct 131, the top air duct 131 communicates with the air outlet 34, the vertical air duct 132 is located at the first side 121 of the battery compartment 11 and communicates with the battery compartment 11, and the second side 122 of the battery compartment 11 communicates with the second air duct 14. By the arrangement, the cold air flowing out of the heat exchange air duct 32 can flow downwards along the vertical air duct 132 after passing through the top air duct 131, so that the cold air can flow to the bottom position of the vertical air duct 132 as much as possible, the battery module 20 positioned at the bottom of the battery compartment 11 can also have cold air passing through, and the heat dissipation uniformity of the upper and lower positions of the battery compartment 11 can be improved. In this embodiment, the temperature adjusting device 30 may be provided on the cabinet door 17, or may be provided on the top or bottom of the cabinet body 10.

In some embodiments, the upper portion of the cabinet 10 is provided with a hydrogen discharge port 18, the hydrogen discharge port 18 is communicated with the first air duct 13, and the cabinet-type air-cooled energy storage system further comprises a hydrogen discharge assembly 19, and the hydrogen discharge assembly 19 is arranged at the hydrogen discharge port 18. Specifically, the exhaust component may be an exhaust fan or a movable shutter, and when the cabinet air-cooled energy storage system generates hydrogen in use, the hydrogen exhaust port 18 located at the upper part of the cabinet body 10 can better exhaust the hydrogen.

In some embodiments, a plurality of mounting positions are arranged in the up-down direction in the battery compartment 11, each mounting position is used for mounting one battery module 20, and a ventilation gap 202 is formed between any battery module 20 and an adjacent battery module 20 above the battery module 20. Specifically, only one column of mounting areas may be provided in the battery compartment 11, or a plurality of columns of mounting areas may be provided, each having a plurality of mounting positions arranged in the up-down direction.

Optionally, each battery module 20 includes a supporting base plate 21 and a plurality of battery packs 22 mounted on the supporting base plate 21, the plurality of battery packs 22 are distributed at intervals along the width direction of the supporting base plate 21, a heat dissipation air duct 201 is formed between two adjacent battery packs 22, one end of the heat dissipation air duct 201 is communicated with the first air duct 13, and the other end is communicated with the second air duct 14; a ventilation gap 202 is formed between any one of the battery modules 20 and the bottom plate of the adjacent battery module 20 above the battery module, and the ventilation gap 202 is communicated with a heat dissipation air duct 201.

In some embodiments, the cabinet air-cooled energy storage system further includes a high-voltage tank 60 and a fire protection system 70, the fire protection system 70 including a fire protection vessel and a fire protection line, the fire protection line connected to the fire protection vessel and extending to the battery compartment 11, the fire protection vessel and the high-voltage tank 60 each mounted to the electrical compartment 12, the high-voltage tank 60 electrically connected to the plurality of battery modules 20. The specific structure of the high-pressure tank 60 and the fire protection system 70 may refer to the prior art, and the present utility model will not be described in detail.

In some embodiments, the heat insulation layer is arranged on the inner side of the cabinet body 10, and the battery compartment 11, the first air duct 13 and the second air duct 14 are all located in the space on the inner side of the heat insulation layer, so that air flow cooling loss can be reduced, and heat exchange efficiency can be improved. Wherein, the heat insulating layer can be made of heat insulating foam or plastic foam and the like.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A cabinet air-cooled energy storage system, comprising:

2. The cabinet air-cooled energy storage system of claim 1, wherein the heat exchange air duct has an air outlet located at an upper position of the cabinet, the battery compartment has opposite first and second sides, the first air duct includes a top air duct and a vertical air duct in communication with the top air duct, the top air duct is in communication with the air outlet, the vertical air duct is located at the first side of the battery compartment and in communication with the battery compartment, and the second side of the battery compartment is in communication with the second air duct.

3. The cabinet air-cooled energy storage system of claim 2, wherein the cabinet has a front opening and a cabinet door mounted to the front opening, the second side of the battery compartment is positioned inside the front opening, the second air duct is formed between the cabinet door and the second side of the battery compartment, and the temperature regulating device is mounted to the cabinet door and positioned outside the cabinet door.

4. The cabinet air-cooled energy storage system of claim 3, further comprising a protective plate covering a second side of the battery compartment, the second air duct being at least partially between the cabinet door and the protective plate, the protective plate having a plurality of ventilation vias, the ventilation vias communicating the battery compartment with the second air duct.

5. The cabinet type air-cooled energy storage system of claim 4, wherein the number of the protection plates is plural, the plurality of protection plates are sequentially arranged along the up-down direction to jointly cover the second side, and each protection plate is independently detachably mounted on the cabinet body.

6. The cabinet air-cooled energy storage system of claim 4, wherein the cabinet is further provided with an electric cabin, the electric cabin is located at one side of the battery cabin, the cabinet air-cooled energy storage system further comprises a plurality of battery management modules, the plurality of battery management modules are in one-to-one correspondence with the plurality of battery modules, and the battery management modules are installed on a partition plate between the electric cabin and the battery cabin and are located between the cabinet door and the protection plate.

7. The cabinet air-cooled energy storage system of claim 3, wherein the temperature adjustment device further comprises an air outlet nozzle mounted at the air outlet and extending toward the top air duct, the air outlet nozzle being correspondingly abutted to an opening of the top air duct away from the vertical air duct.

8. The cabinet air-cooled energy storage system of claim 2, wherein each of the battery modules includes a support base plate and a plurality of battery packs mounted on the support base plate, the plurality of battery packs being spaced apart along a width direction of the support base plate, the heat dissipation air duct being formed between two adjacent battery packs, the heat dissipation air duct of each of the battery modules extending from the first side to the second side.

9. The cabinet air-cooled energy storage system of claim 1, wherein a baffle is disposed on one side of the battery compartment, the battery compartment and the first air duct are separated by the baffle, at least one ventilation opening is disposed at a position of the baffle corresponding to each battery module, and a fan is disposed at each ventilation opening.

10. The cabinet air-cooled energy storage system of claim 1, wherein the upper portion of the cabinet is provided with a hydrogen discharge port, the hydrogen discharge port is in communication with the first air duct, and the cabinet air-cooled energy storage system further comprises a hydrogen discharge assembly, and the hydrogen discharge assembly is arranged at the hydrogen discharge port.