CN215266443U

CN215266443U - Energy storage cabinet

Info

Publication number: CN215266443U
Application number: CN202120988691.6U
Authority: CN
Inventors: 张万财; 蓝金花; 郭敏; 张永炜; 杨强; 王欢
Original assignee: Xiamen Haichen New Energy Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-12-21
Anticipated expiration: 2031-05-10

Abstract

The application provides an energy storage rack relates to battery technical field. The energy storage rack includes first casing, a plurality of mounting panel and a plurality of battery package. The first shell comprises a first end and a second end which are opposite to each other, a first cavity of the first shell is provided with a first preset direction, and the second end is provided with an air outlet. The mounting panel has first ventilation hole, and a plurality of mounting panel intervals set up in first cavity, are close to the mounting panel of first end and form the air supply chamber of installation air feed mechanism between the first end. A plurality of battery package sets up on a plurality of mounting panels, and the battery package has the wind channel that corresponds with first ventilation hole position. The cooling air that the air feed mechanism of energy storage rack bottom provided can follow the battery module in every layer of battery package of first predetermined direction cooling in proper order, improves cooling efficiency. Moreover, each layer of battery pack of the energy storage cabinet does not need to be provided with a cooling fan independently any more, the battery packs on the upper layer and the lower layer can be arranged closely, the volume utilization rate of the energy storage cabinet is improved, and the volume energy density of an energy storage system is improved.

Description

Energy storage cabinet

Technical Field

The application relates to the technical field of batteries, in particular to an energy storage cabinet.

Background

For large-scale energy storage projects, along with the maturity of the market and the improvement of battery technologies, the requirements on an energy storage system are higher and higher. The battery temperature in the battery box can be raised when the energy storage system is charged and discharged, and the battery is easily damaged by high temperature, so that the service life of the battery is seriously influenced.

At present, an energy storage base station or a communication base station adopts air cooling to cool and protect a battery pack. Each battery pack is independently cooled by one or more small fans, the number of the fans is larger than or equal to that of the battery packs, and generally, each energy storage system is provided with a plurality of battery packs, namely, a plurality of fans are correspondingly arranged. The cooling method has low battery heat dissipation efficiency.

The running time of a cooling fan in the energy storage system is longer in the battery running process, the failure rate is higher than that of other original devices, and the failure rate is exponentially increased due to the increase of the number of the fans. When a certain fan breaks down, the corresponding battery pack needs to be disassembled, and then the fan is disassembled for troubleshooting and troubleshooting, so that the operation efficiency is low, and the operation workload is large.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide an energy storage cabinet, which can improve the technical problem that the battery heat dissipation efficiency of the existing energy storage system is low.

In a first aspect, an embodiment of the present application provides an energy storage cabinet, which includes: the battery pack comprises a first shell, a plurality of mounting plates and a plurality of battery packs.

The first shell comprises a first end and a second end which are opposite, the first shell defines a first cavity, the first cavity is provided with a first preset direction from the first end to the second end, and the second end is provided with an air outlet.

The mounting panel has at least one first ventilation hole, and a plurality of mounting panels set up in first cavity along first predetermined direction interval, are close to the mounting panel of first end and form the air supply chamber that is used for installing air feed mechanism between the first end.

A plurality of battery package sets up on a plurality of mounting panels, and the battery package has the wind channel that corresponds with first ventilation hole position and arrange along first default direction.

In the implementation process, the air supply mechanism is arranged in the air supply chamber at the bottom of the energy storage cabinet, cooling air provided by the air supply mechanism can flow through the first vent holes and the air channels of the battery packs on each layer of mounting plate along a first preset direction, the battery packs on each layer of mounting plate are sequentially cooled, and finally the cooling air is discharged from the air outlet.

The utility model provides an air feed mechanism can be shared to a plurality of battery packages of energy storage rack, and the fault rate of single air feed mechanism is low, and convenient maintenance and change have reduced the stability of after-sale repair cost and product quality. Simultaneously, the cooling air that the air feed mechanism of energy storage rack bottom provided can follow the battery module in first predetermined direction cooling in proper order every layer of battery package, improves cooling efficiency. Moreover, each layer of battery pack of the energy storage cabinet does not need to be provided with a cooling fan independently any more, the battery packs on the upper layer and the lower layer can be arranged closely, the volume utilization rate of the energy storage cabinet is improved, and the volume energy density of an energy storage system is improved.

In a possible embodiment, the battery pack includes a second housing and a plurality of battery modules, the second housing defines a second cavity, the plurality of battery modules are disposed in the second cavity, at least a portion of two adjacent battery modules are disposed at an interval to form a gap, and the air duct includes a gap.

In the above-mentioned realization process, the cooling air that the air feed mechanism of cabinet body bottom provided can follow first predetermined direction and enter into two adjacent battery module intervals behind the first ventilation hole and set up and form the clearance, carries out direct cooling to the battery module.

In a possible embodiment, the gap is provided with an air duct plate having a plurality of fourth air holes arranged in a first predetermined direction.

In the implementation process, the air duct plate can enable the battery module to be stably installed in the second cavity, and can guide cooling air to flow along a first preset direction.

In one possible embodiment, the side of the air duct plate facing the battery module is provided with a heat conducting layer.

In the implementation process, the heat conduction layer is used for transferring heat generated by the battery module to the air duct plate, so that the heat exchange efficiency of the battery module and the air duct plate is improved.

In a possible embodiment, the second housing includes a bottom plate provided with a third vent hole corresponding in position to the first vent hole.

In the above-mentioned realization process, the cooling air is between adjacent two-layer mounting panel, and the first ventilation hole of the mounting panel of earlier process lower floor, and the clearance between the battery module is entered into in the third ventilation hole to rethread, reaches the first ventilation hole of the mounting panel on upper strata at last.

In a possible embodiment, one side of the mounting plate close to the first end is provided with a sealing layer, the sealing layer is provided with a second vent hole corresponding to the position of the first vent hole, and one side of the battery pack close to the second end abuts against the sealing layer.

In the implementation process, after the battery pack is arranged in the cabinet body, the top surface of the battery pack is abutted against and extrudes the sealing layer, namely, no gap exists between the battery pack and the mounting plate, and cooling air provided by the air supply mechanism at the bottom of the cabinet body can stably flow to the air outlet at the second end along the first preset direction without mixing.

In a possible embodiment, the first casing further includes a side plate, at least a portion of the mounting plate is rotatably connected to the side plate, an inner wall of the side plate has a plurality of first positioning portions, the mounting plate has a second positioning portion engaged with the first positioning portions, and the mounting plate is rotatable until the first positioning portions engage with the second positioning portions and connect the first positioning portions and the second positioning portions.

In the above-mentioned realization process, when the battery package closely arranged in the battery cabinet, the roof butt of battery package in the mounting panel of upper strata or less with the clearance of the mounting panel of upper strata, rotatable mounting panel easy to assemble battery package.

Before the assembly battery package, rotate the mounting panel of mounting layer upside to suitable position earlier, arrange the battery package in the mounting panel of mounting layer again on to correspond wind channel and first ventilation hole, rotate the mounting panel of mounting layer upside to first location portion and the cooperation of second location portion and make first location portion and second location portion be connected at last, the mounting panel is stably connected in the curb plate.

In one possible embodiment, the mounting plate adjacent the first end is fixedly attached to the side plate and the remaining mounting plate is rotatably attached to the side plate.

In a possible embodiment, the first positioning portion has a first threaded hole, the second positioning portion has a first through hole, and the bolt sequentially passes through the first through hole and the first threaded hole so that the mounting plate is fixedly connected to the side plate.

In the implementation process, after the battery pack is arranged on the mounting plate, the mounting plate is stably connected to the side plate through the first positioning portion and the second positioning portion which are connected through bolts.

In one possible embodiment, the energy storage cabinet comprises an air supply mechanism, and the air supply mechanism is arranged in the air supply chamber.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of an energy storage cabinet according to an embodiment of the present application;

fig. 2 is a left side view of an energy storage cabinet according to an embodiment of the present application;

fig. 3 is a front view of an energy storage cabinet according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of the energy storage cabinet according to the embodiment of the present application before a battery pack is mounted;

fig. 5 is a cross-sectional view of an energy storage cabinet according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a battery pack according to an embodiment of the present application;

fig. 7 is a sectional view of a battery pack according to an embodiment of the present application;

fig. 8 is a partial sectional view of a battery pack according to an embodiment of the present application;

fig. 9 is a top view of a battery pack without a top plate according to an embodiment of the present application;

fig. 10 is a schematic view of a bottom plate direction of a battery pack according to an embodiment of the present application.

Icon: 10-an energy storage cabinet; 100-a first housing; 101-a first cavity; 102-a first preset direction; 103-an air supply chamber; 110-a top cover; 111-an air outlet; 120-a base; 130-side plate; 131-a first side panel; 132-a second side panel; 140-a cabinet door; 200-mounting plate; 201-a first vent; 210-a fold over; 220-a sealing layer; 221-a second vent hole; 300-a battery pack; 310-a second housing; 311-a second cavity; 312-a backplane; 313-a third vent hole; 314-a top plate; 315-fifth vent hole; 320-a battery module; 330-air duct board; 331-fourth vent hole; 340-a thermally conductive layer; 400-a scaffold; 500-air supply mechanism; 600-a mounting frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be noted that the terms "upper", "lower", "vertical", "horizontal", "inner", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally laid out when products of the application are used, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The cooling mode of current energy storage rack 10 adopts at least one fan to independently cool off for every layer of battery package 300, every layer all is provided with at least one fan promptly, there is not the wind channel that link up between the adjacent two-layer battery package 300, the cooling air is stretchd at random, and can't directly cool off battery module 320 through the inside that battery package 300 entered into battery package 300, the cooling efficiency is low, the inside not naked battery module 320 of battery package 300 receives the cold effect not good, the battery difference in temperature is big, be unfavorable for improving the cycle life of battery package 300.

Referring to fig. 1 to 3, the present application provides an energy storage cabinet 10, which includes a first housing 100, a plurality of mounting plates 200, and a plurality of battery packs 300.

The first housing 100 includes a first end and a second end opposite to each other, wherein the first end is a base 120, the second end is a top cover 110, the first housing 100 further includes three side plates 130 and a cabinet door 140, and the first housing 100 defines a first cavity 101.

In the embodiment shown in fig. 1 to 3, the energy storage cabinet 10 is a cuboid, and the first cavity 101 is also a cuboid. In other embodiments of the present application, the energy storage cabinet 10 may also be designed in other shapes, such as a cube, a sphere, etc., according to the requirement.

The top cover 110 is provided with an air outlet 111 for discharging the cooling air having undergone heat exchange.

In the embodiment shown in fig. 1 to 3, the air outlets 111 are disposed on four side walls of the top cover 110. In some other embodiments of the present application, the air outlet 111 may be disposed on the top wall of the top cover 110, or the air outlet 111 may be disposed on the top wall and the side wall of the top cover 110, or the air outlet 111 may be disposed on a portion of the side wall of the top cover 110.

The first chamber 101 has a first predetermined direction 102 from the base 120 to the top cover 110. That is, when the energy storage cabinet 10 is vertically placed on the ground or a working surface, the first cavity 101 has a first preset direction 102 from bottom to top.

A plurality of mounting plates 200 are disposed at intervals along the first predetermined direction 102 in the first cavity 101. That is, when energy storage cabinet 10 is vertically placed on the ground or a working surface, a plurality of mounting plates 200 are arranged in first cavity 101 at intervals from bottom to top, forming a plurality of mounting chambers for accommodating battery packs 300.

In the embodiment shown in fig. 1 and 3, the energy storage cabinet 10 includes 8 mounting plates 200 arranged at intervals along the first preset direction 102. In other embodiments of the present application, the energy storage cabinet 10 may further include 2, 3, 4, 5, 6, 7, 9 or more mounting plates 200, which can be used to accommodate more battery packs 300.

The side of the mounting plate 200 is connected to the side plate 130 so that the mounting plate 200 is stably disposed in the first chamber 101.

Optionally, at least a portion of mounting plate 200 may be rotatably coupled to side plate 130.

Referring to fig. 4 and 5, the inner wall of the side plate 130 has a plurality of first positioning portions, the mounting plate 200 has a second positioning portion engaged with the first positioning portions, and the mounting plate 200 can rotate until the first positioning portions engage with the second positioning portions and connect the first positioning portions with the second positioning portions.

The mounting plates 200 of the existing battery cabinet cannot move, and a large mounting activity space needs to be reserved, so that the distance between two adjacent layers of mounting plates 200 is large, the occupied size is large, and the improvement of the volume energy density of the energy storage cabinet 10 is not facilitated. Meanwhile, since a large installation space needs to be reserved, after the battery pack 300 is installed on the installation plate 200, a gap is reserved between the upper surface of the battery pack 300 and the installation plate 200 on the upper side of the battery pack, the battery pack cannot be in close contact with the installation plate, cooling air can spread randomly and flees around, the battery pack cannot penetrate through the inside of the battery module 320 in an oriented manner, and the cooling efficiency is low.

Referring to fig. 5, the mounting plate 200 of the present application is movably connected to the side plate 130, the battery packs 300 are sequentially mounted along the first predetermined direction 102, the battery pack 300 on the mounting plate 200 at the lowest layer is mounted first, the mounting plate 200 on the mounting plate 200 at the lowest layer is rotated upward, then the battery pack 300 is mounted on the mounting plate 200 at the lowest layer, and finally the mounting plate 200 on the mounting plate 200 at the lowest layer is rotated until the first positioning portion of the mounting plate is matched with the second positioning portion of the mounting plate and the first positioning portion is connected to the second positioning portion of the mounting plate. The battery packs 300 on all the mounting plates 200 are sequentially mounted as described above.

The three side plates 130 of the first casing 100 include a first side plate 131 and a second side plate 132 which are oppositely disposed, and a third side plate (not shown) which is opposite to the cabinet door 140.

In the embodiment shown in fig. 4 and 5, the end of the mounting plate 200 close to the first side plate 131 and the second side plate 132 is provided with a folded portion 210 extending upward, the end of the first side plate 131 and the end of the second side plate 132 close to the third side plate are provided with a plurality of first threaded holes, the end of the two folded portions 210 of the mounting plate 200 close to the third side plate is provided with a first through hole, and a bolt sequentially passes through the first through hole and the first threaded holes so that the end of the first mounting plate 200 close to the third side plate is fixedly connected to the side plate 130.

The mounting plate 200 can rotate clockwise or counterclockwise with one end thereof having the first through-hole as a fulcrum.

In order to ensure that the energy storage cabinet 10 is arranged in the horizontal plane, the mounting plate 200 can also rotate to the horizontal state, the positions of the first threaded holes on the first side plate 131 and the second side plate 132 correspond to each other one by one, and the heights of the corresponding two first threaded holes are equal.

Meanwhile, in order to equalize the interval between any two adjacent mounting plates 200, a plurality of first threaded holes on the first side plate 131 or the second side plate 132 are arranged in the vertical direction at equal intervals.

The ends of the first side plate 131 and the second side plate 132 close to the cabinet door 140 are respectively provided with a plurality of second threaded holes as first positioning portions, and the ends of the two folded portions 210 of the mounting plate 200 close to the cabinet door 140 are respectively provided with a second through hole as second positioning portions.

Before the battery pack 300 is mounted, the mounting plate 200 is rotatably coupled to the side plate 130 by its threaded coupling adjacent to the third side plate; after the battery pack 300 is installed, the mounting plate 200 is rotated to the second through hole to align with the second threaded hole, and the bolts are sequentially passed through the second through hole and the second threaded hole so that the other end of the mounting plate 200 is fixedly connected to the side plate 130, and the mounting plate 200 is stably connected to the side plate 130 through the threaded connection at the two ends thereof.

In order to ensure that the energy storage cabinet 10 is arranged on the horizontal plane, after the battery pack 300 is installed, the installation plate 200 can be horizontally arranged, and the heights of the first threaded hole and the second threaded hole which are connected with the same installation plate 200 are equal.

Further, in order to prevent the cabinet door 140 from protruding from the side plate 130 after being closed, the ends of the first side plate 131 and the second side plate 132 close to the cabinet door 140 are hollowed out, and the positions where the first side plate 131 and the second side plate 132 are partially hollowed out are thinner, the bracket 400 needs to be installed at this position, the bracket 400 has a second threaded hole, and one end of the installation plate 200 close to the cabinet door 140 is screwed to the bracket 400.

Of course, the embodiment of the present application does not limit the connection manner between the mounting plate 200 and the side plate 130, as long as the end of the mounting plate 200 close to the third side plate can be rotatably connected to the side plate 130, and the end of the mounting plate 200 close to the cabinet door 140 can be optionally fixedly connected to the side plate 130.

In another embodiment of the present application, one end of the mounting plate 200 close to the third side plate is hinged to the third side plate, the ends of the first side plate 131 and the second side plate 132 close to the cabinet door 140 are both provided with a fastener, and a fastener hole matched with the fastener is formed below the mounting plate 200. When the end of the mounting plate 200 close to the cabinet door 140 rotates downward to be in a horizontal position, the mounting plate 200 is blocked by the fastener so that the mounting plate cannot rotate downward continuously, and the fastener falls into the fastening hole, so that the mounting plate 200 is in a horizontal state stably. Wherein, buckle spare can be for the connecting rod that extends to mounting panel 200 direction and set up in the spheroid at the connecting rod end, the buckle hole be can with the terminal spheroid complex spherical groove of connecting rod.

Alternatively, in the energy storage cabinet 10 of the present application, the mounting plate 200 near the base 120 is fixedly connected to the side plate 130, there is no movable structure, and the rest of the mounting plate 200 is rotatably connected to the side plate 130.

An air supply chamber 103 for installing the air supply mechanism 500 is formed between the mounting plate 200 close to the base 120 and the base 120, the air supply chamber 103 is generally large and can be used for directly installing the air supply mechanism 500, and the mounting plate 200 at the lowest layer does not need to be movably connected to the side plate 130 to increase the installation space of the air supply mechanism 500. Of course, if the air supply mechanism 500 has a large volume and needs to be installed in the battery pack 300, the installation plate 200 at the lowest layer close to the base 120 may be designed to be a movable structure.

Optionally, the energy storage cabinet 10 further includes a mounting bracket 600, and the mounting bracket 600 is disposed on the base 120 and is used for mounting the air supply mechanism 500.

Optionally, the air supply mechanism 500 includes a fan or fan.

Referring to fig. 4, each mounting plate 200 has at least one first vent hole 201.

The shape and number of the first vent holes 201 are not limited in the present application, and in the embodiment shown in fig. 4, the mounting plate 200 includes a plurality of first vent holes 201, and the first vent holes 201 are rectangular vent holes capable of guiding the cooling wind to flow along the first preset direction 102.

Referring to fig. 4 and 5, a plurality of battery packs 300 are disposed on the plurality of mounting plates 200, and the battery packs 300 have air ducts corresponding to the first ventilation holes 201 and arranged along the first predetermined direction 102.

Only one battery pack 300 may be provided on each mounting plate 200, or a plurality of battery packs 300 may be arranged.

Optionally, a sealing layer 220 is disposed below the mounting plate 200, the sealing layer 220 has a second vent hole 221 corresponding to the first vent hole 201, and one surface of the battery pack 300 close to the top cover 110 abuts against the sealing layer 220.

Since the mounting plate 200 of the present application is movable, the distance between the battery pack 300 and the mounting plate 200 may be small or the upper top surface of the battery pack 300 abuts against the mounting plate 200 on the upper side. Thereby increasing the energy density of the entire energy storage cabinet 10.

The sealing layer 220 is made of an elastic material, when the upper top surface of the battery pack 300 abuts against the upper mounting plate 200, the upper top surface of the battery pack 300 abuts against and presses the sealing layer 220, that is, there is no gap between the battery pack 300 and the mounting plate 200, and the cooling air can stably flow to the air outlet 111 of the top cover 110 along the first preset direction 102 without mixing.

Referring to fig. 6 to 9, the battery pack 300 includes a second housing 310 and a plurality of battery modules 320, the second housing 310 defines a second cavity 311, the plurality of battery modules 320 are disposed in the second cavity 311, at least a portion of two adjacent battery modules 320 are disposed at intervals to form a gap, and the air duct includes a gap.

Referring to fig. 5, after the battery pack 300 is mounted on the mounting plate 200, the first vents 201 of the battery plates are aligned with the air duct, and a plurality of cooling paths along the first predetermined direction 102 are formed inside the energy storage cabinet 10, so as to directly cool the battery modules 320 inside the battery pack 300.

Referring to fig. 7 to 9, the air duct plate 330 is disposed at the gap, and the air duct plate 330 has a plurality of fourth air holes 331 arranged along the first predetermined direction 102.

The air duct plate 330 can guide the cooling air to flow in the first preset direction 102 while stably mounting the battery module 320 in the second cavity 311.

Optionally, a heat conducting layer 340 is disposed on a side of the air duct plate 330 facing the battery module 320.

The heat conduction layer 340 is used for transferring heat generated by the battery module 320 to the air duct plate 330, thereby improving the heat exchange efficiency between the battery module 320 and the air duct plate 330.

Referring to fig. 6 and 10, the second housing 310 includes a bottom plate 312 and a top plate 314, and the bottom plate 312 and the top plate 314 respectively have a third vent hole 313 and a fifth vent hole 315.

The third vent hole 313 and the fifth vent hole 315 may correspond to the first vent hole 201 of the mounting plate 200, or may be vent holes uniformly distributed on the entire bottom plate 312 or the top plate 314.

In the embodiment shown in fig. 5 and 6, the third vent hole 313 is a rectangular vent hole corresponding to the position and shape of the first vent hole 201, and the fifth vent holes 315 of the battery pack 300 are circular vent holes uniformly distributed on the entire top plate 314. In some other embodiments of the present application, the third vent hole 313 and the fifth vent hole 315 may both be rectangular vent holes corresponding to the position and shape of the first vent hole 201, or the third vent hole 313 and the fifth vent hole 315 may both be circular or square vent holes evenly distributed on the entire bottom plate 312 and the bottom plate 312.

Referring to fig. 5, after the battery packs 300 are sequentially mounted on the mounting plate 200 along the first preset direction 102, the air ducts of the battery packs 300 on the multiple mounting plates 200 and the first vent holes 201 of the multiple mounting plates 200 form multiple cooling paths along the first preset direction 102, the cooling paths do not have other sub-paths in the middle, the cooling air provided by the air supply mechanism 500 disposed at the bottom of the energy storage cabinet 10 can sequentially pass through the internal battery modules 320 of the battery packs 300 at different layers along the cooling paths, and the cooling air cannot be guided out and flee at each mounting layer, thereby improving the cooling efficiency. Moreover, a plurality of battery packs 300 of the energy storage cabinet 10 of the present application can share one air supply mechanism 500, the failure rate of the single air supply mechanism 500 is low, and the maintenance and the replacement are convenient, so that the repair cost after sale and the stability of the product quality are reduced. Simultaneously, the battery package 300 of this application and the mounting panel 200 of its upper side's the less or battery package 300 butt in the mounting panel 200 of its upside for the battery package 300 of energy storage rack 10 closely arranges, and every layer of battery package 300 no longer need be equipped with radiator fan alone in addition, on the basis of guaranteeing the directional flow of cooling air, has improved the whole energy density of energy storage rack 10.

Meanwhile, the energy storage cabinet 10 of the present application can adjust the cooling air delivery volume of the battery packs 300 on different layers by adjusting the size of the first vent holes 201 of each layer of the mounting plate 200 and the air duct size of the battery packs 300, and then adjust the cooling power of the battery modules 320 of the battery packs 300 on different layers according to the temperature of the cooling air on different layers, so that the temperature consistency of all the battery modules 320 is improved, and the cycle life of the energy storage cabinet 10 is further prolonged.

Along first predetermined direction 102, the temperature of cooling air will rise gradually, if the first ventilation hole 201 of each layer of mounting plate 200 remains unchanged, compared with the battery module 320 of the lower layer of battery pack 300, the cooling effect of the battery module 320 of the upper layer of battery pack 300 is poorer, and the first ventilation hole 201 of the upper layer of mounting plate 200 and the air duct of the battery pack 300 are properly enlarged to increase the intake air amount, so as to compensate the deterioration of the cooling effect of the upper layer of battery module 320 caused by the rise of the air temperature.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An energy storage cabinet, comprising:

the air conditioner comprises a first shell, a second shell and a control unit, wherein the first shell comprises a first end and a second end which are opposite to each other, a first cavity is defined by the first shell, the first cavity is provided with a first preset direction from the first end to the second end, and the second end is provided with an air outlet;

the mounting plates are provided with at least one first vent hole, the mounting plates are arranged in the first cavity at intervals along the first preset direction, and an air supply chamber for mounting an air supply mechanism is formed between the mounting plate close to the first end and the first end;

a plurality of battery package, a plurality of battery package set up in on a plurality of mounting panels, the battery package have with first ventilation hole position corresponds and follows the wind channel that first preset direction arranged.

2. The energy storage cabinet of claim 1, wherein the battery pack comprises a second housing and a plurality of battery modules, the second housing defines a second cavity, the plurality of battery modules are disposed in the second cavity, at least some adjacent two of the battery modules are spaced apart to form a gap, and the air duct comprises the gap.

3. The energy storage cabinet of claim 2, wherein the gap is provided with a duct plate having a plurality of fourth ventilation holes arranged along the first predetermined direction.

4. The energy storage cabinet of claim 3, wherein a side of the air duct plate facing the battery modules is provided with a heat conducting layer.

5. The energy storage cabinet of claim 2, wherein the second housing comprises a bottom plate provided with a third vent hole corresponding in position to the first vent hole.

6. The energy storage cabinet of claim 1, wherein a sealing layer is disposed on a side of the mounting plate adjacent to the first end, the sealing layer has a second vent hole corresponding to the first vent hole, and a side of the battery pack adjacent to the second end abuts against the sealing layer.

7. The energy storage cabinet of claim 1 or 6, wherein the first housing further comprises a side plate, at least a portion of the mounting plate is rotatably connected to the side plate, an inner wall of the side plate has a plurality of first positioning portions, the mounting plate has a second positioning portion engaged with the first positioning portions, and the mounting plate is rotatable until the first positioning portions engage with the second positioning portions and connect the first positioning portions and the second positioning portions.

8. The energy storage cabinet of claim 7, wherein the mounting plate proximate the first end is fixedly attached to the side plate, and the remaining mounting plates are rotatably attached to the side plate.

9. The energy storage cabinet of claim 7, wherein the first positioning portion has a first threaded hole, the second positioning portion has a first through hole, and a bolt passes through the first through hole and the first threaded hole in sequence to fixedly connect the mounting plate to the side plate.

10. The energy storage cabinet of any one of claims 1 to 6, wherein the energy storage cabinet comprises an air supply mechanism, and the air supply mechanism is arranged in the air supply chamber.