CN223052260U

CN223052260U - Battery rack with air cooling function and battery system

Info

Publication number: CN223052260U
Application number: CN202421609510.4U
Authority: CN
Inventors: 李国涛; 冯朝均
Original assignee: Eve Energy Storage Co Ltd
Current assignee: Eve Energy Storage Co Ltd
Priority date: 2024-07-09
Filing date: 2024-07-09
Publication date: 2025-07-01
Anticipated expiration: 2034-07-09
Also published as: WO2025087224A1

Abstract

The present application discloses a battery rack and a battery system with air cooling function, which belongs to the field of battery technology. The battery rack includes a rack and an air cooling module. The rack includes a frame and a plurality of bearings fixed to the frame, and the bearings are used to carry battery packs; the air cooling module is installed on the frame, and the air cooling module includes a fan and an air duct housing. A ventilation channel is formed in the air duct housing. The ventilation channel has an air inlet connected to the outlet of the fan, and the ventilation channel has a plurality of air outlets. The battery pack on each bearing corresponds to at least one air outlet. When the fan is working, it can suck the outside air into the ventilation channel and blow it from the air outlet to the battery pack on the bearing to achieve heat dissipation and cooling of the battery pack. The heat dissipation effect is higher than that of natural air cooling, and the cost is lower than that of liquid cooling. By applying the above-mentioned battery rack, the battery system can improve the heat dissipation effect of the battery system while meeting the cost requirements.

Description

Battery rack with air cooling function and battery system

Technical Field

The application relates to the technical field of batteries, in particular to a battery rack with an air cooling function and a battery system.

Background

The battery system generally comprises a battery frame and battery packs arranged in the battery frame, and the battery systems with a large number of battery packs usually adopt a liquid cooling mode to dissipate heat, so that the heat dissipation effect is better, but the cost is higher, while the battery systems with a small number of battery packs usually adopt a natural air cooling mode to dissipate heat, and the natural air cooling mode has low cost but has poor heat dissipation effect.

Therefore, a battery rack with a heat dissipation effect higher than that of natural air cooling and a cost lower than that of liquid cooling is needed to solve the problems in the prior art.

Disclosure of utility model

The present application aims to solve or at least alleviate some or all of the above problems. Therefore, the application provides a battery rack with an air cooling function and a battery system.

In order to achieve the above object, the present application adopts the following technical scheme:

in a first aspect, a battery rack with an air cooling function is provided, including:

the rack comprises a rack body and a plurality of bearing pieces fixed on the rack body, wherein the bearing pieces are used for bearing battery packs;

The air cooling module is arranged on the frame body and comprises a fan and an air duct shell, a ventilation channel is formed in the air duct shell, the ventilation channel is provided with an air inlet communicated with an outlet of the fan, the ventilation channel is provided with a plurality of air outlets, and a battery pack on each bearing piece corresponds to at least one air outlet.

As an alternative scheme of the battery rack with the air cooling function, a plurality of bearing pieces are arranged at intervals along the height direction of the rack body.

As an alternative scheme of the battery rack with the air cooling function, a space is arranged between the lowest bearing piece and the bottom end of the rack body, and the fan is positioned in the space.

As an alternative scheme of the battery rack with the air cooling function, the air duct shell comprises a first shell and a second shell which are communicated, the first shell extends along the horizontal direction and is connected with an outlet of the fan, the second shell extends along the height direction of the rack, and the air outlet is formed in one side surface, close to the bearing piece, of the second shell.

As an alternative to the battery rack with the air cooling function, a side surface of the second housing, which is close to the bearing member, is a plane.

As an alternative scheme of the battery rack with the air cooling function, the number of the bearing pieces is at least two, the number of the air cooling modules is smaller than or equal to the number of the bearing pieces, and one air cooling module is used for cooling battery packs on at least one bearing piece.

As an alternative scheme of the battery rack with the air cooling function, the rack further comprises a frame body connected with the rack body, the frame body comprises a plurality of connected side plates, and at least one side plate is the air duct shell.

As an alternative scheme of the battery rack with the air cooling function, the frame body comprises three side plates which are sequentially connected, wherein the three side plates are the air duct shell, the ventilation channels in the three side plates are communicated, or the ventilation channels in the three side plates are independent of each other, the number of the fans is three and are respectively communicated with the ventilation channels in one side plate, or

The frame body comprises three side plates which are sequentially connected, wherein two opposite side plates are the air duct shell, the ventilation channels in the two opposite side plates are independent from each other, and the number of fans is two and is respectively communicated with the ventilation channels in one side plate.

As an alternative scheme of the battery rack with the air cooling function, the air outlets comprise first air outlets which extend along the height direction of the rack body and/or

The plurality of air outlets comprise second air outlets which extend along the horizontal direction.

As an alternative scheme of the battery rack with the air cooling function, the number of the first air outlets is at least two, wherein the two first air outlets are arranged at intervals along the horizontal direction and correspond to the two sides of the battery pack on the bearing piece in the horizontal direction, and/or

The number of the second air outlets is at least two, wherein the two second air outlets are arranged at intervals along the height direction of the frame body and correspond to two ends of the battery pack on the bearing piece in the height direction.

As an alternative scheme of the battery rack with the air cooling function, the bearing piece comprises a bearing part and a blocking part, the bearing part is used for bearing the battery pack, one side edge, far away from the air duct shell, of the bearing part is provided with a taking and placing opening for taking and placing the battery pack, and the other side edges of the bearing part are connected with the blocking part extending upwards.

As an alternative scheme of the battery rack with the air cooling function, the rack further comprises a supporting piece, the left side and the right side of the battery pack are detachably connected with the supporting piece, and the supporting piece can be abutted to the rack body and used for limiting and supporting the left and right directions of the battery pack.

As an alternative scheme of the battery rack with the air cooling function, an air duct is arranged in the bearing piece, and the air duct is communicated with the ventilation channel.

In a second aspect, there is provided a battery system including a battery pack and the battery rack having the air cooling function as described in any one of the above, the battery pack being placed on the carrier and corresponding to the air outlet.

The application has the beneficial effects that:

The application provides a battery rack with an air cooling function, which comprises a rack body and an air cooling module, wherein the rack body comprises a rack body and a plurality of bearing pieces fixed on the rack body, the bearing pieces are used for bearing battery packs, the air cooling module is arranged on the rack body and comprises a fan and an air duct shell, a ventilation channel is formed in the air duct shell, the ventilation channel is provided with an air inlet communicated with an outlet of the fan, the ventilation channel is provided with a plurality of air outlets, and the battery packs on each bearing piece correspond to at least one air outlet. When the fan works, external air can be sucked into the ventilation channel and blown to the battery pack on the bearing piece from the air outlet, so that the heat dissipation and the cooling of the battery pack are realized, the heat dissipation effect is higher than that of natural air cooling, and the cost is lower than that of liquid cooling heat dissipation.

According to the battery system provided by the application, by applying the battery frame, the heat dissipation effect of the battery system can be improved under the condition of meeting the cost requirement.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly explain the drawings needed in the description of the embodiments of the present application, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the contents of the embodiments of the present application and these drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural view of a battery system according to an embodiment of the present application;

Fig. 2 is a schematic structural diagram of a battery rack with an air cooling function according to an embodiment of the present application;

Fig. 3 is a schematic diagram of a partial cross section of a battery rack with an air cooling function according to an embodiment of the present application.

Reference numerals:

100. A battery pack, 101, a fixing member;

1. The device comprises a rack, 11, a rack body, 12, a bearing piece, 121, a bearing part, 122, a blocking part, 13, a supporting piece, 14, a frame body, 141 and a side plate;

2. Air cooling module, 21, fan, 22, air duct shell, 220, ventilation channel, 2201, air outlet, 2201a, first air outlet, 2201b, second air outlet, 221, first shell, 222, second shell;

3. and (3) mounting a plate.

Detailed Description

Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings.

In the present disclosure, the terms "comprises," "comprising," "has," "having," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the present application, the term "and/or" is an association relationship describing an association object, meaning that three relationships may exist. For example, A and/or B may mean that A alone, both A and B, and B alone are present. In the present application, the character "/" generally indicates that the front and rear related objects are in an "and/or" relationship.

In the present application, the terms "connected," "coupled," and "mounted" may be directly connected, coupled, or mounted, or indirectly connected, coupled, or mounted. By way of example, two parts or components are connected together without intermediate members, and by indirect connection is meant that the two parts or components are respectively connected to at least one intermediate member, through which the two parts or components are connected. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings, and may include electrical connections or couplings.

In the present application, one of ordinary skill in the art will understand that relative terms (e.g., "about," "approximately," "substantially," etc.) used in connection with quantities or conditions are intended to encompass the values and have the meanings indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a particular value, the tolerance associated with a particular value resulting from manufacture, assembly, use, and the like. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to the addition or subtraction of a percentage (e.g., 1%,5%,10% or more) of the indicated value. Numerical values, not employing relative terms, should also be construed as having specific values of tolerance. Further, "substantially" when referring to relative angular positional relationships (e.g., substantially parallel, substantially perpendicular) may refer to adding or subtracting a degree (e.g., 1 degree, 5 degrees, 10 degrees, or more) from the indicated angle.

In the present application, those of ordinary skill in the art will appreciate that the functions performed by a component may be performed by a component, a plurality of components, a part, or a plurality of parts. Also, the functions performed by the elements may be performed by one element, by an assembly, or by a combination of elements.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", and the like are described in terms of orientation and positional relationship shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements. It should also be understood that the terms upper, lower, left, right, front, back, etc. are not only intended to represent positive orientations, but also to be construed as lateral orientations. For example, the lower side may include a right lower side, a left lower side, a right lower side, a front lower side, a rear lower side, and the like.

Fig. 1 shows a schematic structure of a battery system provided by the present application. As shown in fig. 1, the battery system includes a battery rack and a battery pack 100 placed on the battery rack, and the battery pack 100 can be charged and discharged to meet the power demand of a user. It should be noted that the battery system may be used as an energy storage device in a ship, and may also be used in other places where an energy storage device is needed, which is not limited herein.

In one embodiment, the battery pack 100 may be a lithium iron phosphate battery. The lithium iron phosphate storage battery has the advantages of high working voltage, high energy density, long cycle life, good safety performance, small self-discharge rate, no memory effect and the like.

In the related art, the heat dissipation mode of the battery system mainly comprises liquid cooling heat dissipation and natural air cooling heat dissipation, wherein the liquid cooling heat dissipation effect is good, the cost is high, the natural air cooling cost is low, the heat dissipation effect is poor, and the heat dissipation requirement of the battery system cannot be met.

The application provides a battery rack with an air cooling function, which has a heat dissipation effect higher than that of natural air cooling, is lower than that of liquid cooling heat dissipation, and can improve the heat dissipation effect of a battery system under the condition of meeting the requirement of cost.

Fig. 2 shows a schematic structural diagram of a battery rack with an air cooling function provided by the application. Fig. 3 is a schematic diagram showing a partial cross section of a battery rack with an air cooling function according to the present application. As shown in fig. 2 to 3 and combined with fig. 1, the battery rack comprises a rack 1 and an air cooling module 2, wherein the rack 1 comprises a rack body 11 and a plurality of bearing pieces 12 fixed on the rack body 11, the bearing pieces 12 are used for bearing battery packs 100, the air cooling module 2 is arranged on the rack body 11, the air cooling module 2 comprises a fan 21 and a wind channel shell 22, a ventilation channel 220 is formed in the wind channel shell 22, the ventilation channel 220 is provided with an air inlet communicated with an outlet of the fan 21, the ventilation channel 220 is provided with a plurality of air outlets 2201, and the battery packs 100 on the bearing pieces 12 correspond to at least one air outlet 2201. When the fan 21 works, external air can be sucked into the ventilation channel 220 and blown to the battery pack 100 on the bearing piece 12 from the air outlet 2201, so that the heat dissipation and the temperature reduction of the battery pack 100 are realized, the heat dissipation effect is higher than that of natural air cooling, and the cost is lower than that of liquid cooling heat dissipation.

In one embodiment, one battery pack 100 is placed on each carrier 12. In other embodiments, two or more battery packs 100 may be placed on each carrier 12 as desired, and specifically may be designed according to the size and load bearing capacity of the carrier 12, without limitation.

For convenience of description, as shown in fig. 1 to 3, the height direction of the frame 11 in the operating state is referred to as "up" and "down", the direction in which the bearing surface of the carrier 12 is located is referred to as "horizontal direction", the mounting orientation of the duct housing 22 on the frame 11 is referred to as "rear", the orientation corresponding to the "rear" is referred to as "front", and the remaining two orientations of the frame 11 are referred to as "left" and "right", respectively.

In an embodiment, the two bearing members 12 are arranged at intervals along the height direction of the frame 11, so that the occupied space of the frame 1 can be reduced, and the height direction of the installation space is fully utilized. In another embodiment, the number of the carriers 12 is not limited to two, but may be any number of one, three, four, five, six, seven, etc., and specifically may be designed according to the number of the battery packs 100 to be mounted and the height of the mounting space, which is not limited thereto. In other embodiments, the carrying members 12 may be disposed at intervals along the horizontal direction of the frame 11, and the battery system may be mounted in a flat mounting space.

In one embodiment, a space is provided between the lowest bearing member 12 and the bottom end of the frame 11, and the fan 21 is located in the space. The fan 21 is installed below the battery pack 100, so that not only can the influence of heat generated by the battery pack 100 on air near the fan 21 be reduced, but also the installation and subsequent maintenance of the fan 21 are facilitated. In addition, the fan 21 can be downwards arranged to downwards move the gravity center of the battery frame, so that the overall stability of the battery frame is ensured.

In one embodiment, the fan 21 is a cross-flow fan. The fan 21 is fixed on the frame 11 along the horizontal direction, so that the height of the bearing piece 12 at the lowest position can be adjusted to be the lowest, and the height space occupied by the fan 21 is reduced. In addition, the fan 21 can fully utilize the horizontal space below the bearing piece 12, so that the axial length of the fan 21 is increased, and the power of the fan 21 is further increased.

Further, the inlet of the blower 21 is directed towards the side facing away from the tunnel housing 22. In the example of fig. 2, the inlet of the blower 21 is directed toward the front side of the frame 11, i.e., air is introduced into the inlet of the blower 21 from the front side of the frame 11, then enters the ventilation passage 220 from the outlet of the blower 21, and finally is blown from the air outlet 2201 of the ventilation passage 220 toward the battery pack 100 positioned on the carrier 12.

In one embodiment, the number of air cooling modules 2 is one, and one air cooling module 2 can blow and dissipate heat of all the battery packs 100 on the rack 1. In other embodiments, the number of the carriers 12 is at least two, the number of the air cooling modules 2 is less than or equal to the number of the carriers 12, and one air cooling module 2 is used for cooling the battery packs 100 on at least one carrier 12, so as to improve the heat dissipation effect by increasing the number of the air cooling modules 2.

The frame 1 further includes a frame 14 connected to the frame 11, where the frame 14 includes a plurality of connected side plates 141, and at least one side plate 141 is an air duct housing 22. In this embodiment, the number of the side plates 141 is three, the side plates 141 are disposed on the left and right sides and the rear side of the frame 11, the side plate 141 on the rear side is the air duct housing 22, and the remaining two side plates 141 are used for protecting the left and right sides of the battery pack 100. The side plate 141 may be made of a metal plate with good heat conductivity, so that heat generated by the battery pack 100 can be sufficiently dissipated, and a protective barrier can be provided for the battery pack 100.

In another embodiment, the number of the side plates 141 is three, the side plates 141 are disposed on the left and right sides and the rear side of the frame 11, the three side plates 141 are all air duct housings 22, the ventilation channels 220 in the three side plates 141 are all communicated, or the ventilation channels 220 in the three side plates 141 are independent of each other, and the number of the fans 21 is three and are respectively communicated with the ventilation channels 220 in one side plate 141.

In another embodiment, the number of the side plates 141 is three, the side plates 141 are disposed on the left and right sides and the rear side of the frame 11, the side plates 141 opposite to the left and right sides are the air duct housing 22, the ventilation channels 220 in the two opposite side plates 141 are independent from each other, and the number of the fans 21 is two and are respectively communicated with the ventilation channels 220 in one side plate 141.

In an embodiment, the air duct housing 22 includes a first housing 221 and a second housing 222, which are connected to each other, the first housing 221 extends along a horizontal direction and is connected to an outlet of the fan 21, the second housing 222 extends along a height direction of the frame 11, and the air outlet 2201 is disposed on a side surface of the second housing 222 near the carrier 12. By the arrangement, the occupied space of the air duct shell 22 can be reduced, and the air duct shell 22 is convenient to install on the frame 11. Specifically, the left and right ends of the second casing 222 are fixed to the frame 11, the fan 21 is fixed to the bottom of the frame 11 by the mounting plate 3, one end of the first casing 221 is fixedly connected to the second casing 222, and the other end is fixedly connected to the fan 21, thereby achieving stable mounting.

Further, a side surface of the second housing 222, which is close to the carrier 12, is a plane, and the plane can avoid interference with the battery pack 100 when the plane is closely arranged with the carrier 12, and since the distance between the air outlet 2201 and the battery pack 100 is relatively short, the air flow of the air outlet 2201 can be ensured to directly blow to the battery pack 100, and the heat dissipation effect is improved. In addition, it can be appreciated that the second housing 222 is designed to be assembled from planar sheets, which may facilitate the forming of the second housing 222 and reduce the cost.

It can be appreciated that, when the number of the air outlets 2201 is too large, the speed of the air flow blown out from the air outlets 2201 may be reduced, so that the air flow may not sufficiently flow through all the portions of the battery pack 100 in the front-rear direction of the frame 11, and thus the heat dissipation effect of the portions of the battery pack 100 away from the air outlets 2201 may be poor. When the number of the air outlets 2201 is too small, the total air output of the air outlets 2201 is small, and the air cooling effect is also reduced.

Based on this, in an embodiment, the plurality of air outlets 2201 includes a first air outlet 2201a and a second air outlet 2201b, the first air outlet 2201a extends along the height direction of the frame 11, and the second air outlet 2201b extends along the horizontal direction. The two first air outlets 2201a are disposed at intervals along the horizontal direction and correspond to two sides of the battery pack 100 on the carrier 12 in the horizontal direction. The two second air outlets 2201b are disposed at intervals along the height direction of the frame 11 and correspond to two ends of the battery pack 100 on the carrier 12 in the height direction. By the arrangement, the air outlet speed and the air outlet quantity of the air outlet 2201 can be considered, and the radiating effect of air cooling is fully improved.

In another embodiment, the number of the first air outlets 2201a may be three, four, five, etc., and may be specifically designed according to the size of the battery pack 100, where two first air outlets 2201a are disposed at intervals along the horizontal direction and correspond to two sides of the battery pack 100 on the carrier 12 along the horizontal direction, and the remaining first air outlets 2201a are located between the two first air outlets 2201 a. The number of the second air outlets 2201b may be three, four, five, or the like, and may be specifically designed according to the size of the battery pack 100, where two second air outlets 2201b are disposed at intervals along the height direction of the frame 11 and correspond to two ends of the battery pack 100 on the carrier 12 in the height direction, and the remaining second air outlets 2201b are located between the two second air outlets 2201 b.

As further shown in fig. 2 in combination with fig. 1, the carrier 12 includes a carrier 121 and a blocking portion 122, the carrier 121 is used for carrying the battery pack 100, a side of the carrier 121 away from the air duct housing 22 is provided with a taking and placing port for taking and placing the battery pack 100, and the remaining sides of the carrier 121 are connected with the blocking portion 122 extending upwards. I.e. the front side of the carrying part 121 has a pick-and-place opening, and the remaining three sides of the carrying part 121 have blocking parts 122. The arrangement can not only facilitate the placement of the battery pack 100 on the bearing part 121 of the bearing member 12, but also prevent the battery pack 100 from falling from the rest three sides of the bearing part 121, thereby ensuring the stability of the battery pack 100.

In another embodiment, the carrier 12 has an air duct therein that communicates with the ventilation channel 220 in the air duct housing 22 for air-cooled heat dissipation from the bottom of the battery pack.

In an embodiment, the rack 1 further includes a supporting member 13, where the left side and the right side of the battery pack 100 are detachably connected with the supporting member 13, and the supporting member 13 can be abutted against the rack 11 to limit the battery pack 100, so as to avoid the battery pack 100 from shaking left and right on the carrier 12.

In an embodiment, the number of the supporting members 13 on the left and right sides of the battery pack 100 is at least one, and the number of the supporting members 13 is specifically designed according to the height of the battery pack 100 and the height of the supporting members 13, which is not limited herein.

In one embodiment, the battery pack 100 is provided with a fixing member 101, and the fixing member 101 is detachably and fixedly connected with the supporting member 13.

In one embodiment, the fixing member 101 is an L-shaped plate, one arm of which is fixed to the battery pack 100, and the other arm of which has a connecting post having a threaded hole, and the supporting member 13 has a through hole communicating with the threaded hole, and is screwed with the threaded hole by a bolt passing through the through hole, so that the supporting member 13 is fixedly connected with the fixing member 101. Of course, the fixing member 101 may be a plate member of other shapes, so long as the detachable fixing connection between the fixing member 101 and the supporting member 13 can be achieved, which is not limited herein.

The foregoing has shown and described the basic principles, principal features and advantages of the application. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the application in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the application.

Claims

1. A battery rack with air cooling function, comprising:

The rack (1) comprises a rack body (11) and a plurality of bearing pieces (12) fixed on the rack body (11), wherein the bearing pieces (12) are used for bearing a battery pack (100);

The air cooling module (2) is arranged on the frame body (11), the air cooling module (2) comprises a fan (21) and an air duct shell (22), a ventilation channel (220) is formed in the air duct shell (22), the ventilation channel (220) is provided with an air inlet communicated with an outlet of the fan (21), the ventilation channel (220) is provided with a plurality of air outlets (2201), and each battery pack (100) on the bearing piece (12) corresponds to at least one air outlet (2201).

2. The battery rack with the air cooling function according to claim 1, wherein a plurality of the bearing members (12) are arranged at intervals along the height direction of the rack body (11).

3. The battery rack with the air cooling function according to claim 2, wherein a space is provided between the lowest bearing piece (12) and the bottom end of the rack body (11), and the fan (21) is positioned in the space.

4. A battery rack with air cooling function according to claim 3, wherein the air duct housing (22) comprises a first housing (221) and a second housing (222) which are communicated, the first housing (221) extends along a horizontal direction and is connected with an outlet of the fan (21), the second housing (222) extends along a height direction of the rack body (11), and the air outlet (2201) is formed in a side surface of the second housing (222) close to the bearing member (12).

5. The battery rack with air cooling function according to claim 4, wherein a side of the second housing (222) adjacent to the carrier (12) is planar.

6. The battery rack with air cooling function according to any one of claims 1-5, wherein the number of carriers (12) is at least two, the number of air cooling modules (2) is smaller than or equal to the number of carriers (12), and one air cooling module (2) is used for cooling battery packs (100) on at least one of the carriers (12).

7. The battery rack with the air cooling function according to claim 6, wherein the rack (1) further comprises a frame body (14) connected with the rack body (11), the frame body (14) comprises a plurality of connected side plates (141), and at least one side plate (141) is the air duct housing (22).

8. The battery rack with air cooling function according to claim 7, wherein the frame (14) comprises three side plates (141) connected in sequence, wherein the three side plates (141) are all the air duct housing (22), the ventilation channels (220) in the three side plates (141) are all communicated, or the ventilation channels (220) in the three side plates (141) are independent of each other, the number of the fans (21) is three and are respectively communicated with the ventilation channels (220) in one side plate (141), or

The frame body (14) comprises three side plates (141) which are sequentially connected, wherein two opposite side plates (141) are the air duct shell (22), ventilation channels (220) in the two opposite side plates (141) are independent from each other, and the number of the fans (21) is two and are respectively communicated with the ventilation channels (220) in one side plate (141).

9. The battery rack with air cooling function according to any one of claims 1-5, wherein the plurality of air outlets (2201) comprises a first air outlet (2201 a), the first air outlet (2201 a) extends along the height direction of the rack body (11), and/or

The air outlets (2201) comprise second air outlets (2201 b), and the second air outlets (2201 b) extend along the horizontal direction.

10. The battery rack with air cooling function according to claim 9, wherein the number of the first air outlets (2201 a) is at least two, wherein the two first air outlets (2201 a) are arranged at intervals along the horizontal direction and correspond to two sides of the battery pack (100) on the carrier (12) along the horizontal direction, and/or

The number of the second air outlets (2201 b) is at least two, wherein the two second air outlets (2201 b) are arranged at intervals along the height direction of the frame body (11) and correspond to two ends of the battery pack (100) on the bearing piece (12) in the height direction.

11. The battery rack with the air cooling function according to any one of claims 1 to 5, wherein the carrying member (12) comprises a carrying portion (121) and a blocking portion (122), the carrying portion (121) is used for carrying the battery pack (100), a side edge of the carrying portion (121) away from the air duct housing (22) is provided with a taking and placing opening for taking and placing the battery pack (100), and the remaining side edges of the carrying portion (121) are connected with the blocking portion (122) extending upwards.

12. The battery rack with the air cooling function according to claim 11, wherein the rack (1) further comprises a supporting member (13), the supporting member (13) is detachably connected to the left side and the right side of the battery pack (100), and the supporting member (13) can abut against the rack body (11) for limiting and supporting the left and right directions of the battery pack (100).

13. The battery rack with air cooling function according to claim 11, wherein the carrier (12) has an air duct therein, and the air duct is in communication with the ventilation channel (220).

14. A battery system, characterized by comprising a battery pack (100) and a battery rack with an air cooling function according to any one of claims 1 to 13, wherein the battery pack (100) is placed on the carrier (12) and corresponds to the air outlet (2201).