Battery rack with air cooling function and battery system

Abstract

The utility model discloses a battery rack with an air cooling function and a battery system, and belongs to the technical field of batteries. The battery rack comprises a rack and an air cooling module, the rack comprises a rack body and a plurality of bearing pieces fixed to the rack body, and the bearing pieces are used for bearing battery packs; the air cooling module is installed on the frame body, the air cooling module comprises a fan and an air duct shell, a ventilation channel is formed in the air duct shell and 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 pack on each bearing piece corresponds 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 heat dissipation and cooling of the battery pack are achieved, 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, by applying the battery rack, the heat dissipation effect of the battery system can be improved under the condition that the cost requirement is met.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a battery rack and a battery system with an air-cooling function. Background Art

[0002] A battery system usually includes a battery rack and battery packs installed in the battery rack. For a battery system with a large number of battery packs, a liquid-cooling method is mostly used for heat dissipation, which has a good heat dissipation effect but a high cost; while for a battery system with a small number of battery packs, a natural air-cooling method is mostly used for heat dissipation. Although natural air-cooling has a low cost, its heat dissipation effect is poor.

[0003] Therefore, there is an urgent need for a battery rack with a heat dissipation effect higher than natural air-cooling but a cost lower than liquid-cooling to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of this application is to solve or at least alleviate some or all of the above problems. For this reason, this application provides a battery rack and a battery system with an air-cooling function.

[0005] To achieve the above objectives, the following technical solutions are adopted in this application:

[0006] In the first aspect, a battery rack with an air-cooling function is provided, including:

[0007] A rack, including a frame body and a plurality of carriers fixed to the frame body, and the carriers are used for carrying battery packs;

[0008] An air-cooling module, installed on the frame body, the air-cooling module includes a fan and a duct housing, a ventilation channel is formed in the duct housing, the ventilation channel has an air inlet connected to the outlet of the fan, the ventilation channel has a plurality of air outlets, and the battery packs on each carrier correspond to at least one of the air outlets.

[0009] As an alternative of the battery rack with an air-cooling function, a plurality of the carriers are arranged at intervals along the height direction of the frame body.

[0010] As an alternative of the battery rack with an air-cooling function, there is a gap between the carrier at the lowest position and the bottom end of the frame body, and the fan is located in the gap.

[0011] As an alternative of the battery rack with an air-cooling function, the duct housing includes a first housing and a second housing that are connected and communicate with each other. The first housing extends in the horizontal direction and is connected to the outlet of the fan. The second housing extends in the height direction of the frame body, and the air outlets are opened on a side surface of the second housing close to the carrier.

[0012] As an alternative to the battery rack with an air-cooling function, one side of the second housing close to the carrier is a flat surface.

[0013] As an alternative to the battery rack with an air-cooling function, the number of the carriers is at least two, the number of the air-cooling modules is less than or equal to the number of the carriers, and one air-cooling module is used to cool the battery packs on at least one carrier.

[0014] As an alternative to the battery rack with an air-cooling function, the rack further includes a frame connected to the rack body, the frame includes a plurality of connected side plates, and at least one side plate is the air duct housing.

[0015] As an alternative to the battery rack with an air-cooling function, the frame includes three sequentially connected side plates, all three side plates are the air duct housings, the ventilation channels in the three side plates are all connected, or the ventilation channels in the three side plates are independent of each other; the number of the fans is three, and each is connected to the ventilation channel in one side plate; or

[0016] The frame includes three sequentially connected side plates, and two opposite side plates of them are the air duct housings, and the ventilation channels in the two opposite side plates are independent of each other; the number of the fans is two, and each is connected to the ventilation channel in one side plate.

[0017] As an alternative to the battery rack with an air-cooling function, several of the air outlets include a first air outlet, and the first air outlet extends along the height direction of the rack body; and / or

[0018] Several of the air outlets include a second air outlet, and the second air outlet extends along the horizontal direction.

[0019] As an alternative to the battery rack with an air-cooling function, the number of the first air outlets is at least two, and two of the first air outlets are spaced apart along the horizontal direction and correspond to the two sides of the battery packs on the carrier in the horizontal direction; and / or

[0020] The number of the second air outlets is at least two, and two of the second air outlets are spaced apart along the height direction of the rack body and correspond to the two ends of the battery packs on the carrier in the height direction.

[0021] As an alternative to the battery rack with an air-cooling function, the carrier includes a bearing part and a blocking part, the bearing part is used to bear the battery packs, one side edge of the bearing part away from the air duct housing has a pick-up and placement opening for picking up and placing the battery packs, and the remaining side edges of the bearing part are connected with the upwardly extending blocking part.

[0022] As an alternative to the battery rack with air-cooling function, the rack further includes a support member. The left and right sides of the battery pack are detachably connected with the support member, and the support member can abut against the frame body for limiting and supporting the battery pack in the left-right direction.

[0023] As an alternative to the battery rack with air-cooling function, an air duct is provided in the carrier, and the air duct is communicated with the ventilation channel.

[0024] In a second aspect, a battery system is provided, which includes a battery pack and the battery rack with air-cooling function as described in any one of the above. The battery pack is placed on the carrier and corresponds to the air outlet.

[0025] The beneficial effects of the present application are as follows:

[0026] The battery rack with air-cooling function provided by the present application includes a frame and an air-cooling module. The frame includes a frame body and a plurality of carriers fixed to the frame body, and the carriers are used for carrying the battery pack; the air-cooling module is installed on the frame body and 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 communicated with the outlet of the fan, and the ventilation channel has a plurality of air outlets. The battery packs on each carrier correspond to at least one air outlet. When the fan works, it can suck the outside air into the ventilation channel and blow it to the battery packs on the carriers from the air outlets, so as to realize the heat dissipation and temperature reduction of the battery packs. The heat dissipation effect is higher than that of natural air-cooling, and the cost is lower than that of liquid-cooling.

[0027] The battery system provided by the present application can improve the heat dissipation effect of the battery system while meeting the cost requirements by applying the above battery rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present application. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the content of the embodiments of the present application and these drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of the battery system provided by the embodiment of the present application;

[0030] Figure 2 It is a schematic structural diagram of the battery rack with air-cooling function provided by the embodiment of the present application;

[0031] Figure 3 It is a partial cross-sectional schematic diagram of the battery rack with air-cooling function provided by the embodiment of the present application.

[0032] Reference numerals:

[0033] 100, battery pack; 101, fixing member;

[0034] 1, rack; 11, frame body; 12, bearing member; 121, bearing portion; 122, blocking portion; 13, support member; 14, frame; 141, side plate;

[0035] 2, air-cooling module; 21, fan; 22, air duct housing; 220, ventilation passage; 2201, air outlet; 2201a, first air outlet; 2201b, second air outlet; 221, first housing; 222, second housing;

[0036] 3, mounting plate. Detailed implementation manners

[0037] Before explaining in detail any implementation manner of the present application, it should be understood that the present application is not limited to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0038] In the present application, the terms "include", "comprise", "have" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including one..." does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0039] In the present application, the term "and / or" is an associative relationship describing associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the present application, the character " / " generally indicates that the associated objects before and after are in an "and / or" relationship.

[0040] In the present application, the terms "connect", "combine", "couple", "mount" may be direct connection, combination, coupling or mounting, or may be indirect connection, combination, coupling or mounting. Among them, by way of example, direct connection means that two parts or components are connected together without the need for an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connection or coupling, and may include electrical connection or coupling.

[0041] In this application, those of ordinary skill in the art will understand that relative terms used in connection with quantities or conditions (e.g., "about", "approximately", "substantially", etc.) are intended to include the recited value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances resulting from manufacturing, assembly, use, etc. associated with a particular value. Such terms should also be considered to disclose ranges defined by the absolute values of two endpoints. The relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values that do not employ relative terms should also be disclosed as specific values having tolerances. In addition, when expressing relative angular positional relationships (e.g., substantially parallel, substantially perpendicular), "substantially" may refer to plus or minus a certain number of degrees (e.g., 1 degree, 5 degrees, 10 degrees or more) from the indicated angle.

[0042] In this application, those of ordinary skill in the art will understand that the functions performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0043] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that orientation terms such as the upper side, lower side, left side, right side, front side, rear side, etc. not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front, and lower rear, etc.

[0044] Figure 1 The structural schematic diagram of the battery system provided by this application is shown. As Figure 1 shown, the battery system includes a battery rack and a battery pack 100 placed on the battery rack. The battery pack 100 can be charged and discharged to meet the power consumption needs of users. It should be noted that this battery system can be used as an energy storage device in ships, and can also be used in other places that require energy storage devices, and is not limited here.

[0045] In one embodiment, the battery pack 100 can be a lithium iron phosphate battery. The lithium iron phosphate battery has the advantages of high working voltage, large energy density, long cycle life, good safety performance, small self-discharge rate, and no memory effect.

[0046] In the related art, the heat dissipation methods of battery systems are mainly liquid cooling and natural air cooling. Among them, the liquid cooling has better heat dissipation effect, but higher cost; the natural air cooling has low cost, but poor heat dissipation effect and cannot meet the heat dissipation requirements of the battery system.

[0047] The present application provides a battery rack with an air cooling function, whose heat dissipation effect is higher than that of natural air cooling, and the cost is lower than that of liquid cooling. It can improve the heat dissipation effect of the battery system while meeting the cost requirements.

[0048] Figure 2 The structural schematic diagram of the battery rack with an air cooling function provided by the present application is shown. Figure 3 The partial cross-sectional schematic diagram of the battery rack with an air cooling function provided by the present application is shown. As Figures 2 to 3 And in combination with Figure 1 As shown, the battery rack includes a rack 1 and an air cooling module 2. The rack 1 includes a frame body 11 and a plurality of carriers 12 fixed to the frame body 11. The carriers 12 are used to carry the battery packs 100; the air cooling module 2 is installed on the frame body 11. The air cooling module 2 includes a fan 21 and an air duct housing 22. A ventilation channel 220 is formed in the air duct housing 22. The ventilation channel 220 has an air inlet connected to the outlet of the fan 21, and the ventilation channel 220 has a plurality of air outlets 2201. The battery packs 100 on each carrier 12 correspond to at least one air outlet 2201. When the fan 21 works, it can suck the outside air into the ventilation channel 220 and blow it from the air outlets 2201 to the battery packs 100 on the carriers 12 to achieve heat dissipation and temperature reduction of the battery packs 100. The heat dissipation effect is higher than that of natural air cooling, and the cost is lower than that of liquid cooling.

[0049] In one embodiment, one battery pack 100 is placed on each carrier 12. In other embodiments, two or more battery packs 100 can be placed on each carrier 12 according to needs, and specifically, it can be designed according to the size and load-bearing capacity of the carrier 12, which is not limited here.

[0050] For the convenience of description, as Figures 1 to 3 shown, the height direction of the frame body 11 in the working state is denoted as "up" and "down", the direction where the bearing surface of the carrier 12 is located is denoted as "horizontal direction", the installation orientation of the air duct housing 22 on the frame body 11 is denoted as "rear", and the orientation corresponding to this "rear" is denoted as "front", and the other two orientations of the frame body 11 are respectively denoted as "left" and "right".

[0051] In one embodiment, two carriers 12 are arranged at intervals in the height direction of the frame 11, so that the floor space occupied by the rack 1 can be reduced, and the height direction of the installation space can be fully utilized. In another embodiment, the number of carriers 12 is not limited to two, and can also be any number such as one, three, four, five, six, seven, etc. Specifically, it can be designed according to the number of battery packs 100 to be installed and the height of the installation space, and no limitation is made here. In some other embodiments, the carriers 12 can also be arranged at intervals in the horizontal direction of the frame 11. At this time, the battery system can be installed in a flat installation space.

[0052] In one embodiment, there is a gap between the carrier 12 at the lowest position and the bottom end of the frame 11, and the fan 21 is located in the gap. Installing the fan 21 below the battery pack 100 can not only reduce the influence of the heat generated by the battery pack 100 on the air near the fan 21, but also facilitate the installation and subsequent maintenance of the fan 21. In addition, the downward installation of the fan 21 can also lower the center of gravity of the battery rack and ensure the overall stability of the battery rack.

[0053] In one embodiment, the fan 21 is a cross-flow fan. The fan 21 is fixed to the frame 11 in the horizontal direction, so that the height of the carrier 12 at the lowest position can be adjusted to the lowest, reducing the height space occupied by the fan 21. In addition, the fan 21 can also make full use of the horizontal space below the carrier 12 to increase the axial length of the fan 21, thereby increasing the power of the fan 21.

[0054] Further, the inlet of the fan 21 faces away from one side of the air duct housing 22. In Figure 2 the example, the inlet of the fan 21 faces the front side of the frame 11, that is, air enters the inlet of the fan 21 from the front side of the frame 11, then enters the ventilation channel 220 from the outlet of the fan 21, and finally blows to the battery pack 100 located on the carrier 12 from the air outlet 2201 of the ventilation channel 220.

[0055] In one embodiment, the number of the air-cooling modules 2 is one, and one air-cooling module 2 can blow and dissipate heat from all the battery packs 100 on the rack 1. In some other embodiments, the number of carriers 12 is at least two, the number of air-cooling modules 2 is less than or equal to the number of carriers 12, and one air-cooling module 2 is used to cool the battery packs 100 on at least one carrier 12, and the number of air-cooling modules 2 is increased to improve the heat dissipation effect.

[0056] The frame 1 further includes a frame body 14 connected to the frame 11. The frame body 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 side plates 141 is three, and the side plates 141 are provided on the left and right sides and the rear side of the frame 11. The side plate 141 located at the rear side is the air duct housing 22, and the other two side plates 141 are used to protect the left and right sides of the battery pack 100. The side plate 141 can be made of a metal plate with good heat conductivity, which can not only dissipate the heat generated by the battery pack 100 sufficiently, but also provide a protective barrier for the battery pack 100.

[0057] In another embodiment, the number of side plates 141 is three, and the side plates 141 are provided on the left and right sides and the rear side of the frame 11. All three side plates 141 are air duct housings 22, and the ventilation channels 220 in the three side plates 141 are all connected, or the ventilation channels 220 in the three side plates 141 are independent of each other. The number of fans 21 is three, and they are respectively connected to the ventilation channels 220 in one side plate 141.

[0058] In another embodiment, the number of side plates 141 is three, and the side plates 141 are provided on the left and right sides and the rear side of the frame 11. The opposite side plates 141 on the left and right sides are both air duct housings 22, and the ventilation channels 220 in the two opposite side plates 141 are independent of each other. The number of fans 21 is two, and they are respectively connected to the ventilation channels 220 in one side plate 141.

[0059] In one embodiment, the air duct housing 22 includes a first housing 221 and a second housing 222 that are connected. The first housing 221 extends in the horizontal direction and is connected to the outlet of the fan 21. The second housing 222 extends in the height direction of the frame 11, and the air outlet 2201 is opened on the side surface of the second housing 222 close to the carrier 12. With such a setting, the occupied space of the air duct housing 22 can be reduced, and at the same time, it is convenient to install the air duct housing 22 on the frame 11. Specifically, the left and right ends of the second housing 222 are fixed to the frame 11, the fan 21 is fixed to the bottom of the frame 11 through the mounting plate 3, one end of the first housing 221 is fixedly connected to the second housing 222, and the other end is fixedly connected to the fan 21, so as to achieve stable installation.

[0060] Furthermore, the side surface of the second housing 222 close to the carrier 12 is a flat surface, which can avoid interference with the battery pack 100 when being arranged at a short distance from the carrier 12. Since the air outlet 2201 is close to the battery pack 100, it can ensure that the airflow at the air outlet 2201 directly blows towards the battery pack 100, improving the heat dissipation effect. In addition, it can be understood that designing the second housing 222 to be assembled by flat plates can also facilitate the processing and forming of the second housing 222 and reduce costs.

[0061] It can be understood that when the number of air outlets 2201 is excessive, the velocity of the air flow blown out from the air outlets 2201 will decrease, such that the air flow may not fully flow through all parts of the battery pack 100 in the front-back direction of the rack body 11, and thus the heat dissipation effect of the part of the battery pack 100 far from the air outlets 2201 may be poor. When the number of air outlets 2201 is too small, the total air output of the air outlets 2201 is small, and the air cooling effect will also decrease.

[0062] Based on this, in one embodiment, several air outlets 2201 include a first air outlet 2201a and a second air outlet 2201b. The first air outlet 2201a extends along the height direction of the rack body 11; the second air outlet 2201b extends along the horizontal direction. Two first air outlets 2201a are arranged at intervals in the horizontal direction and correspond to both sides of the battery pack 100 on the carrier 12 in the horizontal direction. Two second air outlets 2201b are arranged at intervals in the height direction of the rack body 11 and correspond to both ends of the battery pack 100 on the carrier 12 in the height direction. With such an arrangement, the air output velocity and the air output volume of the air outlets 2201 can be taken into account, and the heat dissipation effect of air cooling can be fully improved.

[0063] In another embodiment, the number of the first air outlets 2201a can also be three, four, five, etc., which can be specifically designed according to the size of the battery pack 100. Among them, two first air outlets 2201a are arranged at intervals in the horizontal direction and correspond to both sides of the battery pack 100 on the carrier 12 in the horizontal direction, and the remaining first air outlets 2201a are located between the two first air outlets 2201a. The number of the second air outlets 2201b can also be three, four, five, etc., which can be specifically designed according to the size of the battery pack 100. Among them, two second air outlets 2201b are arranged at intervals in the height direction of the rack body 11 and correspond to both 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 2201b.

[0064] Continuing as Figure 2 Combined with Figure 1 As shown, the carrier 12 includes a bearing portion 121 and a blocking portion 122. The bearing portion 121 is used for bearing the battery pack 100. A side of the bearing portion 121 away from the air duct housing 22 has a pick-up and placement opening for the battery pack 100, and the remaining sides of the bearing portion 121 are connected with a blocking portion 122 extending upward. That is, the front side of the bearing portion 121 has a pick-up and placement opening, and the remaining three sides of the bearing portion 121 have blocking portions 122. With such an arrangement, it is both convenient to place the battery pack 100 on the bearing portion 121 of the carrier 12, and the battery pack 100 can be prevented from falling from the remaining three sides of the bearing portion 121, ensuring the stability of the battery pack 100.

[0065] In another embodiment, an air duct is provided inside the carrier 12, and the air duct communicates with the ventilation channel 220 inside the air duct housing 22, which is used for air-cooling the bottom of the battery pack.

[0066] In one embodiment, the rack 1 further includes a support member 13. The left and right sides of the battery pack 100 are detachably connected to the support member 13, and the support member 13 can abut against the frame body 11 to limit the battery pack 100 and prevent the battery pack 100 from shaking left and right on the carrier 12.

[0067] In one embodiment, the number of the support members 13 on the left and right sides of the battery pack 100 is at least one, and can be specifically designed according to the height of the battery pack 100 and the height of the support member 13, which is not limited herein.

[0068] In one embodiment, a fixing member 101 is provided on the battery pack 100, and the fixing member 101 is detachably and fixedly connected to the support member 13.

[0069] In one embodiment, the fixing member 101 is an L-shaped plate member. One arm of it is fixed on the battery pack 100, and the other arm has a connecting column with a threaded hole. The support member 13 has a through hole communicating with the threaded hole. By using a bolt to pass through the through hole and threadedly connect with the threaded hole, the support member 13 can be fixedly connected to the fixing member 101. Of course, the fixing member 101 can also be a plate member of other shapes, as long as the detachable and fixed connection between the fixing member 101 and the support member 13 can be realized, which is not limited herein.

[0070] The foregoing has shown and described the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form. Any technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present application.

Claims

1. A battery rack with air cooling function, characterized in that: include: A frame (1) comprises a frame body (11) and a plurality of carriers (12) fixed to the frame body (11), wherein the carriers (12) are used to carry a battery pack (100); An air cooling module (2) is installed on the frame (11), the air cooling module (2) comprises a fan (21) and an air duct housing (22), a ventilation channel (220) is formed in the air duct housing (22), the ventilation channel (220) has an air inlet connected to the outlet of the fan (21), the ventilation channel (220) has a plurality of air outlets (2201), and each battery pack (100) on the carrier (12) corresponds to at least one of the air outlets (2201).

2. The battery rack with air cooling function according to claim 1, characterized in that: A plurality of the bearing members (12) are arranged at intervals along the height direction of the frame (11).

3. The battery rack with air cooling function according to claim 2, characterized in that: There is a gap between the bearing member (12) located at the lowest position and the bottom end of the frame (11), and the fan (21) is located in the gap.

4. The battery rack with air cooling function according to claim 3, characterized in that: The air duct housing (22) comprises a first housing (221) and a second housing (222) which are connected to each other, wherein the first housing (221) extends in a horizontal direction and is connected to an outlet of the fan (21), and the second housing (222) extends in a height direction of the frame (11), and the air outlet (2201) is provided on a side surface of the second housing (222) close to the supporting member (12).

5. The battery rack with air cooling function according to claim 4, characterized in that: A side surface of the second shell (222) close to the supporting component (12) is a plane.

6. The battery rack with air cooling function according to any one of claims 1 to 5, characterized in that: 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 of the air cooling modules (2) is used to cool a battery pack (100) on at least one of the carriers (12).

7. The battery rack with air cooling function according to claim 6, characterized in that: The rack (1) further comprises a frame body (14) connected to the frame body (11); the frame body (14) comprises a plurality of connected side panels (141); at least one of the side panels (141) is the air duct housing (22).

8. The battery rack with air cooling function according to claim 7, characterized in that: The frame (14) comprises three side panels (141) connected in sequence, the three side panels (141) are all the air duct housings (22), the ventilation channels (220) in the three side panels (141) are all connected, or the ventilation channels (220) in the three side panels (141) are independent of each other; the number of the fans (21) is three, each of which is connected to a ventilation channel (220) in one of the side panels (141); or The frame (14) comprises three side panels (141) connected in sequence, wherein two opposite side panels (141) are the air duct housings (22), and the ventilation channels (220) in the two opposite side panels (141) are independent of each other; and the number of the fans (21) is two, each of which is connected to a ventilation channel (220) in one of the side panels (141).

9. The battery rack with air cooling function according to any one of claims 1 to 5, characterized in that: The plurality of air outlets (2201) include a first air outlet (2201a), wherein the first air outlet (2201a) extends along a height direction of the frame (11); and / or The plurality of air outlets (2201) include a second air outlet (2201b), and the second air outlet (2201b) extends in a horizontal direction.

10. The battery rack with air cooling function according to claim 9, characterized in that: The number of the first air outlets (2201a) is at least two, wherein the two first air outlets (2201a) are arranged at intervals in the horizontal direction and correspond to two sides of the battery pack (100) on the carrier (12) in the horizontal direction; and / or The number of the second air outlets (2201b) is at least two, wherein the two second air outlets (2201b) are arranged at intervals along the height direction of the frame (11) and correspond to the two ends of the battery pack (100) on the carrier (12) in the height direction.

11. The battery rack with air cooling function according to any one of claims 1 to 5, characterized in that: The carrier (12) comprises a carrier portion (121) and a blocking portion (122); the carrier portion (121) is used to carry the battery pack (100); a side edge of the carrier portion (121) away from the air duct housing (22) has a receiving and placing opening for taking in and placing the battery pack (100); and the remaining side edges of the carrier portion (121) are connected to the blocking portion (122) extending upward.

12. The battery rack with air cooling function according to claim 11, characterized in that: The frame (1) further comprises a support member (13), the left side and the right side of the battery pack (100) being detachably connected to the support member (13), and the support member (13) being capable of abutting against the frame body (11) to provide position-limiting support for the battery pack (100) in the left and right directions.

13. The battery rack with air cooling function according to claim 11, characterized in that: The bearing member (12) has an air duct inside, and the air duct is connected to the ventilation channel (220).

14. A battery system, characterized in that: It comprises a battery pack (100) and a battery rack with air cooling function as described in 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).

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