CN217641638U

CN217641638U - Battery cabinet and battery energy storage system

Info

Publication number: CN217641638U
Application number: CN202221568945.XU
Authority: CN
Inventors: 朱哲聪; 孙世强; 郑琳
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-10-21
Anticipated expiration: 2032-06-22

Abstract

The utility model relates to a battery cabinet and battery energy storage system. The battery cabinet comprises a cabinet body and a plurality of ventilation pipelines; a plurality of accommodating spaces are arranged in the cabinet body, each accommodating space is used for accommodating a battery module, and the accommodating spaces are arranged side by side; air pipe is equipped with first air intake and the first air outlet with outside wind regime intercommunication, and air pipe is located between two adjacent accommodation space, is equipped with the ventilation hole on the side towards accommodation space above the air pipe, ventilation hole and accommodation space intercommunication are equipped with the inflation flame retardant coating on the side towards accommodation space above the air pipe, and the inflation flame retardant coating can meet the fire inflation and block up the ventilation hole. Because set up the inflation flame retardant coating on ventilation pipe's the side, the ventilation hole can normally often the air inlet heat dissipation when not having the burning things which may cause a fire disaster, if battery module in the accommodation space catches fire, the inflation flame retardant coating that corresponds on the ventilation pipe meets fire and expands at once, the shutoff ventilation hole prevents effectively that flame from getting into ventilation pipe through the ventilation hole and stretching other battery modules.

Description

Battery cabinet and battery energy storage system

Technical Field

The utility model relates to an energy storage system technical field especially relates to battery cabinet and battery energy storage system.

Background

In recent years, power energy storage system fires occurring at home and abroad attract general attention to lithium battery energy storage systems. According to incomplete statistics, the energy storage fire safety accidents of lithium batteries occur more than 30 in the past year all over the world, and great property loss is caused. Therefore, after the cost of the lithium ion battery is reduced to the inflection point of commercialization, the fire safety problem of the energy storage system becomes a key bottleneck restricting the large-scale popularization of the power energy storage of the lithium ion battery.

The battery energy storage system is formed by connecting dozens of battery cells (also called battery cells) in series to form a battery module, then the battery module is connected in series to form a battery cluster, and then the battery cluster is arranged in a battery cabinet through a parallel integrated system. In the fire spreading process, the thermal runaway of the first battery monomer is mainly caused, and the thermal runaway is caused to occur in succession between the adjacent battery monomers through heat conduction and heat radiation, so that the battery module is caused to catch fire. Under general conditions, including a plurality of battery module in the battery cabinet, when a battery module takes place thermal runaway in wherein the battery frame, the adjacent battery module of initiation also takes place thermal runaway easily to stretch to near other battery modules, constantly stretch to other battery cabinets in the whole energy storage battery system, finally lead to whole battery energy storage system to take place the fire incident.

At present, a battery module is installed and fixed in an open battery bracket or a closed battery cabinet, and although the battery module is favorable for heat dissipation, the battery module has no heat preservation, heat insulation and fire resistance and flame retardant capability in the thermal runaway and ignition process; the sealed battery cabinet of the latter is not beneficial to heat dissipation, can deteriorate internal thermal runaway, has limited heat preservation and insulation and fire-resistant and flame-retardant capabilities, and cannot really realize the function of preventing the fire from spreading.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a battery cabinet and a battery energy storage system for solving the problem of poor fireproof performance of the battery cabinet.

A battery cabinet, comprising:

the battery module storage cabinet comprises a cabinet body, wherein a plurality of accommodating spaces are arranged in the cabinet body, each accommodating space is used for accommodating a battery module, and the accommodating spaces are arranged side by side;

a plurality of air pipe, air pipe is equipped with first air intake and first air outlet with outside wind regime intercommunication, air pipe is located adjacent two between the accommodation space, to on the air pipe be equipped with the ventilation hole in the side of accommodation space, the ventilation hole with the accommodation space intercommunication, to on the air pipe be equipped with the inflation flame retardant coating in the side of accommodation space, the inflation flame retardant coating can meet fire inflation and jam the ventilation hole.

Foretell battery cabinet, the internal accommodation space that is used for holding the battery module that sets up of cabinet, a plurality of battery modules establish ties and supply power to external equipment, sets up air pipe simultaneously between adjacent battery module, for every battery module ventilation cooling, prevents that the battery module from overheating out of control. When a plurality of battery modules are charged or discharged simultaneously, if one of the battery modules is overheated and catches fire, flames may enter the ventilation duct through the ventilation holes and may spread to other battery modules along the ventilation duct, resulting in combustion of the entire battery cabinet. Because set up the inflation flame retardant coating on ventilation pipe's the side, the ventilation hole can normal air inlet heat dissipation when not having the burning things which may cause a fire disaster, if there is the battery module in the accommodation space to catch fire, the inflation flame retardant coating that corresponds on the ventilation pipe meets the fire and expands at once, and the shutoff ventilation hole prevents effectively that flame from getting into ventilation pipe through the ventilation hole and stretching other battery modules. Therefore, the battery cabinet can realize a good heat dissipation function through the ventilation pipeline, can cut off a fire propagation path when a fire occurs, and has good heat dissipation performance and safety performance.

In one of the embodiments, the side that faces towards accommodation space on the air pipe is the benchmark side, be equipped with on the benchmark side the ventilation hole, be equipped with the guide plate on the benchmark side, the shape of guide plate with the shape in ventilation hole suits, first air intake with first air outlet sets up relatively, keep away from on the guide plate a side of first air intake with the benchmark side is connected, other sides on the guide plate with the separation of benchmark side, the face of guide plate to keeping away from the correspondence one side slope of accommodation space, be close to on the guide plate the side of first air intake with the interval of benchmark side sets up, the face of guide plate is to corresponding one side of accommodation space is equipped with the inflation flame retardant coating.

In one of them embodiment, the internal multiseriate accommodation space group that is equipped with of cabinet, every row accommodation space group includes a plurality of along the first direction side by side the accommodation space, multiseriate accommodation space group sets up side by side along the second direction, first direction and second direction are perpendicular, air pipe is located adjacent two between the accommodation space group, be equipped with a plurality ofly on the air pipe the ventilation hole, the ventilation hole with the accommodation space one-to-one.

In one embodiment, the ventilation duct is a square ventilation duct, one end of the ventilation duct is provided with the first air inlet, the other end of the ventilation duct is provided with the first air outlet, and the first air inlet and the first air outlet are arranged oppositely along the first direction.

In one embodiment, the cabinet body includes a support frame and a plurality of battery subracks, the support frame is provided with a plurality of compartments for accommodating the battery subracks, the battery subracks correspond to the compartments one to one, the accommodating spaces are arranged in the battery subracks, the battery subracks correspond to the battery modules one to one, the battery subracks are provided with a second air inlet and a second air outlet which are communicated with the accommodating spaces, and the second air inlet is communicated with the ventilation holes.

In one embodiment, the second air inlet is disposed on a first end face of the battery insert box, the first end face faces the ventilation duct, the second air outlet is disposed on a second end face of the battery insert box, the second end face is perpendicular to the first end face, and the second end face is not adjacent to other battery insert boxes.

In one embodiment, an exhaust fan is arranged on the second air outlet.

In one embodiment, the battery plug boxes are provided with a positive connecting piece and a negative connecting piece, the positive electrode and the negative electrode of the battery module are respectively connected with the positive connecting piece and the negative connecting piece on the corresponding battery plug boxes, and two adjacent battery plug boxes are connected in series through the positive connecting piece and the negative connecting piece;

and/or, be equipped with collection module on the battery subrack, collection module is used for the test in the battery subrack the temperature and the voltage of battery module, collection module is connected with the external control unit electricity.

In one embodiment, the battery plug box comprises a cover plate and a shell, the accommodating space is arranged in the shell, an opening communicated with the outside is formed in the top of the shell, and the cover plate is used for closing the opening.

The utility model provides a battery energy storage system, include a plurality of battery modules and battery cabinet, the battery module is placed in the accommodation space of battery cabinet, the battery module with accommodation space one-to-one is a plurality of the battery module is established ties and is supplied power to external equipment.

Foretell battery energy storage system, the internal accommodation space that is used for holding the battery module that sets up of cabinet, a plurality of battery modules establish ties and supply power to external equipment, sets up air pipe simultaneously between adjacent battery module, for every battery module ventilation cooling, prevents that the battery module from overheating out of control. When a plurality of battery modules are charged or discharged simultaneously, if one of the battery modules is overheated and catches fire, flames may enter the ventilation duct through the ventilation holes and stretch to other battery modules along the ventilation duct, resulting in combustion of the entire battery cabinet. Because set up the inflation flame retardant coating on ventilation pipe's the side, the ventilation hole can normal air inlet heat dissipation when not having the burning things which may cause a fire disaster, if there is the battery module in the accommodation space to catch fire, the inflation flame retardant coating that corresponds on the ventilation pipe meets fire and expands at once, the shutoff ventilation hole prevents effectively that flame from getting into ventilation pipe through the ventilation hole and stretching other battery modules. Therefore, the battery energy storage system can realize a good heat dissipation function through the ventilation pipeline, can cut off a fire propagation path when catching fire, and has good heat dissipation performance and safety performance.

Drawings

FIG. 1 is a schematic diagram of a battery cabinet according to an embodiment;

FIG. 2 is an exploded view of a battery cabinet according to one embodiment;

FIG. 3 is a schematic structural diagram of a ventilation duct according to an embodiment;

FIG. 4 is an exploded view of a vent conduit according to one embodiment;

FIG. 5 is a cross-sectional view of a vent conduit according to one embodiment;

fig. 6 is a partially enlarged view of a ventilation duct in an embodiment.

Reference numerals: 100. a battery cabinet; 10. a cabinet body; 11. a support frame; 12. inserting a battery into a box; 121. a second air inlet; 122. a second air outlet; 13. a positive electrode connecting member; 14. a negative electrode connecting member; 15. an acquisition module; 16. a housing; 17. a cover plate; 18. an exhaust fan; 20. a ventilation duct; 21. a first air inlet; 22. a first air outlet; 23. a vent hole; 231. a first vent hole; 232. a second vent hole; 24. a first baffle; 25. a second baffle; 26. an expanded fire barrier layer; 30. a high pressure tank.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

The battery cabinet 100 and the battery energy storage system in some embodiments are described in detail with reference to the drawings.

As shown in fig. 1 to 6, in an embodiment, there is provided a battery cabinet 100 including a cabinet body 10 and a plurality of ventilation ducts 20;

a plurality of accommodating spaces are arranged in the cabinet body 10, each accommodating space is used for accommodating a battery module, and the accommodating spaces are arranged side by side; ventilating duct 20 is equipped with first air intake 21 and first air outlet 22 with outside wind regime intercommunication, ventilating duct 20 is located between two adjacent accommodation space, be equipped with ventilation hole 23 on ventilating duct 20 towards accommodation space's the side, ventilation hole 23 and accommodation space intercommunication are equipped with inflation flame retardant coating 26 on ventilating duct 20 towards accommodation space's the side, inflation flame retardant coating 26 can meet fire inflation and block up ventilation hole 23.

Above-mentioned battery cabinet 100, the internal accommodation space that sets up a plurality of battery modules that are used for holding of cabinet 10, a plurality of battery modules establish ties and supply power to external equipment, set up air pipe 20 simultaneously between adjacent battery module, for every battery module ventilation cooling, prevent that the battery module from overheated out of control. When a plurality of battery modules are charged or discharged simultaneously, if one of the battery modules catches fire due to overheating, flame may enter the ventilation duct 20 through the ventilation holes 23 and spread to the other battery modules along the ventilation duct 20, causing the entire battery cabinet 100 to burn. Because set up inflation flame retardant coating 26 on ventilation pipe 20's the side, ventilation hole 23 can normally the air inlet heat dissipation when there is not the source of a fire, if there is the battery module in the accommodation space to catch fire, the inflation flame retardant coating 26 that corresponds on ventilation pipe 20 meets fire and expands at once, and shutoff ventilation hole 23 effectively prevents that flame from getting into ventilation pipe 20 through ventilation hole 23 and stretching other battery modules. Therefore, the battery pack 100 can perform a good heat dissipation function through the ventilation duct 20, and can cut off a fire propagation path in case of fire, thereby providing the battery pack 100 with good heat dissipation performance and safety.

In this embodiment, the intumescent fire-proof layer 26 is formed by compounding polymethacrylate or epoxy resin with special structure with amino resin, chlorinated paraffin and the like as a base binder, taking ammonium polyphosphate with high polymerization degree and the like as a fire-proof fire-retardant system, adding inorganic fire-resistant materials such as titanium dioxide, wollastonite and the like, and taking solvent oil as a solvent. The expansion coefficient and the thickness of the expansion fireproof layer 26 can be set according to the size of the vent hole 23, as long as the function of blocking the vent hole 23 in case of fire can be realized.

Specifically, as shown in fig. 3 to 6, in an embodiment, a side of the ventilation duct 20 facing the accommodating space is a reference side, the reference side is provided with a ventilation hole 23, the reference side is provided with a flow guide plate, a shape of the flow guide plate is adapted to a shape of the ventilation hole 23, the first air inlet 21 and the first air outlet 22 are disposed opposite to each other, a side of the flow guide plate far away from the first air inlet 21 is connected to the reference side, other sides of the flow guide plate are separated from the reference side, a surface of the flow guide plate is inclined toward a side far away from the corresponding accommodating space, a side of the flow guide plate near the first air inlet 21 is spaced from the reference side, and one side of the flow guide plate facing the corresponding accommodating space is provided with an expansion fireproof layer 26.

In this specific embodiment, the accommodating spaces on both sides of the ventilation duct 20 are respectively a first accommodating space and a second accommodating space, the ventilation holes 23 on both sides of the ventilation duct 20 are respectively a first ventilation hole 231 and a second ventilation hole 232, the side of the ventilation duct 20 facing the first accommodating space is a first side, the side of the ventilation duct 20 facing the second accommodating space is a second side, the first ventilation hole 231 is arranged on the first side, and the second ventilation hole 232 is arranged on the second side.

As shown in fig. 5 and 6, a first air deflector 24 is disposed on the first side surface, the shape of the first air deflector 24 is adapted to the shape of the first vent hole 231, the first air inlet 21 and the first air outlet 22 are disposed oppositely, one end of the first air deflector 24, which is far away from the first air inlet 21, is connected to the first side surface, the other portion of the first air deflector 24 is separated from the first side surface, the plate surface of the first air deflector 24 inclines towards one side far away from the first accommodating space, one end of the first air deflector 24, which is close to the first air inlet 21, is spaced from the first side surface, and an expansion fireproof layer 26 is disposed on one side of the first air deflector 24, which is far away from the first accommodating space.

And, be equipped with second guide plate 25 on the second side, the shape of second guide plate 25 suits with the shape of second venthole 232, first air intake 21 sets up with first air outlet 22 relatively, the one end and the second side of keeping away from first air intake 21 on the second guide plate 25 are connected, other parts and the second side separation on the second guide plate 25, the face of second guide plate 25 inclines to the one side of keeping away from the second accommodation space, the one end and the second side interval that are close to first air intake 21 on the second guide plate 25 set up, be equipped with inflation flame retardant coating 26 on the second guide plate 25 towards one side of second accommodation space. After the heat dissipation wind enters the ventilation duct 20 from the first air inlet 21, the heat dissipation wind respectively passes through the gap between the first guide plate 24 and the first side surface and the gap between the second guide plate 25 and the second side surface to reach the first accommodating space and the second accommodating space, and dissipates heat of the battery modules on both sides of the ventilation duct 20. When the battery module is overheated and catches fire, the expansion flame retardant coating 26 on first guide plate 24 and the second guide plate 25 can expand rapidly to shutoff the clearance between first guide plate 24 and the first side, the clearance between second guide plate 25 and the second side, cut off the propagation path of flame, improve battery cabinet 100's security.

Specifically, as shown in fig. 1 and fig. 2, in an embodiment, a plurality of columns of accommodating space groups are arranged in the cabinet body 10, each column of accommodating space group includes a plurality of accommodating spaces arranged side by side along a first direction, the plurality of columns of accommodating space groups are arranged side by side along a second direction, the first direction is perpendicular to the second direction, the ventilation duct 20 is located between two adjacent columns of accommodating space groups, a plurality of ventilation holes 23 are arranged on the ventilation duct 20, and the ventilation holes 23 correspond to the accommodating spaces one to one.

In this embodiment, the ventilation duct 20 is provided with a plurality of first ventilation holes 231, a plurality of second ventilation holes 232, a plurality of first guide plates 24, and a plurality of second guide plates 25, the first ventilation holes 231, the first guide plates 24 correspond to the first accommodating spaces one to one, and the second ventilation holes 232, the second guide plates 25 correspond to the second accommodating spaces one to one. The ventilation duct 20 may insulate the propagation of flames between two adjacent columns of battery modules.

Specifically, as shown in fig. 4 and 5, in an embodiment, the ventilation duct 20 is a square ventilation duct, one end of the ventilation duct 20 is provided with a first air inlet 21, the other end of the ventilation duct 20 is provided with a first air outlet 22, and the first air inlet 21 and the first air outlet 22 are disposed opposite to each other along a first direction.

In this embodiment, the battery energy storage system further includes a blower, an outlet of the blower is communicated with the first air inlet 21, and the blower is configured to provide a heat dissipation air source for the ventilation duct 20.

Specifically, as shown in fig. 1 and fig. 2, in an embodiment, the cabinet 10 includes a supporting frame 11 and a plurality of battery plug boxes 12, the supporting frame 11 is provided with a plurality of compartments for accommodating the battery plug boxes 12, the battery plug boxes 12 are in one-to-one correspondence with the compartments, accommodating spaces are provided in the battery plug boxes 12, the battery plug boxes 12 are in one-to-one correspondence with the battery modules, the battery plug boxes 12 are provided with a second air inlet 121 and a second air outlet 122 which are communicated with the accommodating spaces, and the second air inlet 121 is communicated with the ventilation holes 23.

Specifically, as shown in fig. 1 and 2, in an embodiment, the second air inlet 121 is disposed on a first end surface of the battery box 12, the first end surface faces the ventilation duct 20, the second air outlet 122 is disposed on a second end surface of the battery box 12, the second end surface is perpendicular to the first end surface, and the second end surface is not adjacent to other battery boxes 12, that is, the second end surface faces the outside of the cabinet 10. The heat dissipation air enters the accommodating space from the vent hole 23 of the ventilation duct through the second air inlet 121, takes away the heat on the battery module, and flows out of the accommodating space from the second air outlet 122. Therefore, the battery compartment 12 can dissipate heat from the accommodating space through the second air inlet 121 and the second air outlet 122.

Specifically, as shown in fig. 1 and fig. 2, in an embodiment, the exhaust fan 18 is disposed on the second outlet 122. The cooling air quantity entering the accommodating space can be controlled by controlling the air speed of the exhaust fan 18, thereby controlling the cooling speed.

Specifically, as shown in fig. 1 and fig. 2, in an embodiment, the battery insertion boxes 12 are provided with a positive electrode connector 13 and a negative electrode connector 14, the positive electrode and the negative electrode of the battery module are respectively connected with the positive electrode connector 13 and the negative electrode connector 14 on the corresponding battery insertion box 12, and two adjacent battery insertion boxes 12 are connected in series through the positive electrode connector 13 and the negative electrode connector 14.

Specifically, as shown in fig. 1 and 2, in an embodiment, the battery box 12 is provided with an acquisition module 15, the acquisition module 15 is used for testing the temperature and the voltage of the battery module in the battery box 12, and the acquisition module 15 is electrically connected with an external control unit.

Specifically, as shown in fig. 1 and 2, in one embodiment, the battery box 12 includes a cover 17 and a housing 16, a receiving space is provided in the housing 16, an opening communicating with the outside is provided at the top of the housing 16, and the cover 17 is used to close the opening. The cover plate 17 can effectively improve the fireproof performance between the upper battery module and the lower battery module.

As shown in fig. 1 and fig. 2, in an embodiment, a battery energy storage system is provided, which includes a plurality of battery modules and a battery cabinet 100, the battery modules are placed in an accommodating space of the battery cabinet 100, the battery modules correspond to the accommodating space one by one, and the plurality of battery modules are connected in series to supply power to external devices.

Above-mentioned battery energy storage system, the internal accommodation space that sets up a plurality of battery modules that are used for holding of cabinet 10, a plurality of battery modules establish ties and supply power to external equipment, set up air pipe 20 simultaneously between adjacent battery module, for every battery module ventilation cooling, prevent that battery module is overheated out of control. When a plurality of battery modules are simultaneously charged or discharged, if one of the battery modules is excessively heated and ignited, a flame may enter the ventilation duct 20 through the ventilation holes 23 and may spread to the other battery modules along the ventilation duct 20, causing the entire battery cabinet 100 to burn. Because set up inflation flame retardant coating 26 on ventilation pipe 20's the side, ventilation hole 23 can normal air inlet heat dissipation when not having the burning things which may cause a fire disaster, if there is the battery module in the accommodation space to catch fire, the last inflation flame retardant coating 26 that corresponds of ventilation pipe 20 meets the fire and expands at once, and shutoff ventilation hole 23 effectively prevents that flame from getting into ventilation pipe 20 through ventilation hole 23 and stretching other battery modules. Therefore, the battery energy storage system can realize good heat dissipation function through the ventilation duct 20, and can cut off the fire propagation path when a fire occurs, so that the battery energy storage system has good heat dissipation performance and safety performance.

In this embodiment, as shown in fig. 1, the battery energy storage system further includes a high voltage tank 30, and the high voltage tank 30 is electrically connected to one of the battery modules.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A battery cabinet, comprising:

the battery storage cabinet comprises a cabinet body, wherein a plurality of accommodating spaces are arranged in the cabinet body, each accommodating space is used for accommodating a battery module, and the accommodating spaces are arranged side by side;

2. The battery cabinet according to claim 1, characterized in that, the side that faces towards accommodation space on the air pipe is the benchmark side, be equipped with on the benchmark side the ventilation hole, be equipped with the guide plate on the benchmark side, the shape of guide plate with the shape in ventilation hole suits, first air intake with first air outlet sets up relatively, keep away from on the guide plate a side of first air intake with the benchmark side is connected, other sides on the guide plate with the separation of benchmark side, the face of guide plate is to keeping away from corresponding accommodation space's lopsidedness, be close to on the guide plate a side of first air intake with benchmark side interval sets up, be equipped with towards on the guide plate to corresponding one side of accommodation space the inflation flame retardant coating.

3. The battery cabinet according to claim 1, characterized in that the internal multirow accommodation space group that is equipped with of cabinet, every row accommodation space group includes a plurality of accommodation spaces that set up side by side along the first direction, and the multirow accommodation space group sets up side by side along the second direction, first direction and second direction are perpendicular, air pipe is located adjacent two between the accommodation space group, air pipe is last to be equipped with a plurality of the ventilation hole, the ventilation hole with accommodation space one-to-one.

4. The battery cabinet according to claim 3, wherein the ventilation duct is a square ventilation duct, one end of the ventilation duct is provided with the first air inlet, the other end of the ventilation duct is provided with the first air outlet, and the first air inlet and the first air outlet are arranged oppositely along the first direction.

5. The battery cabinet according to claim 1, wherein the cabinet body comprises a supporting frame and a plurality of battery plug boxes, the supporting frame is provided with a plurality of compartments for accommodating the battery plug boxes, the battery plug boxes are in one-to-one correspondence with the compartments, the accommodating spaces are arranged in the battery plug boxes, the battery plug boxes are in one-to-one correspondence with the battery modules, the battery plug boxes are provided with second air inlets and second air outlets communicated with the accommodating spaces, and the second air inlets are communicated with the ventilation holes.

6. The battery cabinet of claim 5, wherein the second air inlet is disposed on a first end face of the battery box, the first end face facing the ventilation duct, and the second air outlet is disposed on a second end face of the battery box, the second end face being perpendicular to the first end face, and the second end face not being adjacent to other battery boxes.

7. The battery cabinet as recited in claim 6, wherein an exhaust fan is disposed on the second air outlet.

8. The battery cabinet according to claim 5, wherein the battery plug boxes are provided with a positive connecting piece and a negative connecting piece, the positive and negative poles of the battery module are respectively connected with the positive connecting piece and the negative connecting piece on the corresponding battery plug boxes, and two adjacent battery plug boxes are connected in series through the positive connecting piece and the negative connecting piece;

9. The battery cabinet according to claim 5, wherein the battery inserting box comprises a cover plate and a shell, the shell is internally provided with the accommodating space, the top of the shell is provided with an opening communicated with the outside, and the cover plate is used for closing the opening.

10. A battery energy storage system, comprising a plurality of battery modules and the battery cabinet of any one of claims 1 to 9, wherein the battery modules are placed in the accommodating space of the battery cabinet, the battery modules correspond to the accommodating space one by one, and the plurality of battery modules are connected in series to supply power to external equipment.