Staggered battery bearing tray

Abstract

The invention relates to a staggered battery bearing tray which comprises a plurality of accommodating grooves. And the accommodating grooves are at least arranged into two accommodating groove rows. The containing groove rows are arranged at intervals in the horizontal direction and arranged in a staggered mode in at least one staggered direction perpendicular to the horizontal direction. Therefore, the heat of the whole battery borne by the staggered battery bearing tray can be well dissipated, so that good temperature uniformity can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to a carrying tray, in particular to an interleaved battery carrying tray for carrying batteries. BACKGROUND

[0002] In the process of charging and discharging a plurality of batteries arranged in a carrying tray by the existing battery formation equipment, the batteries generate high heat, so the batteries need to be cooled. The current cooling method is to arrange two fans on both sides of the carrying tray, and the fans are provided with air flow from both sides of the carrying tray to cool the batteries.

[0003] Since the batteries are arranged in the carrying tray in an orderly manner, a battery row located in the middle of the carrying tray is blocked by the adjacent battery row close to the outer side of the carrying tray, so that the battery row in the middle has poor cooling effect and high temperature, resulting in poor temperature uniformity of the entire batteries in the carrying tray. SUMMARY

[0004] Therefore, one of the purposes of the present application is to provide an interleaved battery carrying tray which can overcome at least one disadvantage of the prior art.

[0005] The purpose of the present application and the solution to the problems of the prior art are achieved by the following technical solution. The interleaved battery carrying tray according to the present application comprises a plurality of accommodation grooves arranged in at least two rows of accommodation grooves, and the rows of accommodation grooves are arranged in a horizontal direction and are staggered in at least one staggered direction perpendicular to the horizontal direction.

[0006] The interleaved battery carrying tray of the present application, the horizontal direction is a first horizontal direction, and the staggered direction is a second horizontal direction.

[0007] The interleaved battery carrying tray of the present application, the staggered direction is a longitudinal direction.

[0008] The interleaved battery carrying tray of the present application, the rows of accommodation grooves are staggered in two staggered directions, the horizontal direction is a first horizontal direction, one of the staggered directions is a second horizontal direction, and the other of the staggered directions is a longitudinal direction, and the longitudinal direction is perpendicular to the first horizontal direction and the second horizontal direction.

[0009] The interleaved battery carrying tray of the present application, the rows of accommodation grooves are arranged in three rows of accommodation grooves, and every two adjacent rows of accommodation grooves are staggered in the staggered direction.

[0010] The staggered battery carrying tray of the present application comprises an air inlet side, the accommodation groove rows are divided into an upstream accommodation groove row and a downstream accommodation groove row, the upstream accommodation groove row is adjacent to the air inlet side, the downstream accommodation groove row is spaced apart from the upstream accommodation groove row along the first horizontal direction and away from the air inlet side, the upstream accommodation groove row has a plurality of upstream accommodation grooves arranged spaced apart along the second horizontal direction, the downstream accommodation groove row has a plurality of downstream accommodation grooves arranged spaced apart along the second horizontal direction, each of the upstream accommodation grooves and each of the downstream accommodation grooves has a width extending in the second horizontal direction, and the staggered interval of the downstream accommodation grooves and the adjacent upstream accommodation grooves in the second horizontal direction is half of the width.

[0011] The staggered battery carrying tray of the present application comprises an air inlet side, the accommodation groove rows are divided into an upstream accommodation groove row and a downstream accommodation groove row, the upstream accommodation groove row is adjacent to the air inlet side, the downstream accommodation groove row is spaced apart from the upstream accommodation groove row along the first horizontal direction and away from the air inlet side, the upstream accommodation groove row has a plurality of upstream accommodation grooves arranged spaced apart along the second horizontal direction, the downstream accommodation groove row has a plurality of downstream accommodation grooves arranged spaced apart along the second horizontal direction, each of the downstream accommodation grooves has a height of the bottom end in the longitudinal direction higher than that of the adjacent upstream accommodation grooves.

[0012] The staggered battery carrying tray of the present application comprises an air inlet side, the accommodation groove rows are divided into an upstream accommodation groove row and a downstream accommodation groove row, the upstream accommodation groove row is adjacent to the air inlet side, the downstream accommodation groove row is spaced apart from the upstream accommodation groove row along the first horizontal direction and away from the air inlet side, the upstream accommodation groove row has a plurality of upstream accommodation grooves arranged spaced apart along the second horizontal direction, the downstream accommodation groove row has a plurality of downstream accommodation grooves arranged spaced apart along the second horizontal direction, each of the upstream accommodation grooves and each of the downstream accommodation grooves has a width extending in the second horizontal direction, and the staggered interval of the downstream accommodation grooves and the adjacent upstream accommodation grooves in the second horizontal direction is half of the width.

[0013] The staggered battery carrying tray of the present application comprises an air inlet side, the accommodation groove rows are divided into an upstream accommodation groove row and a downstream accommodation groove row, the upstream accommodation groove row is adjacent to the air inlet side, the downstream accommodation groove row is spaced apart from the upstream accommodation groove row along the first horizontal direction and away from the air inlet side, the upstream accommodation groove row has a plurality of upstream accommodation grooves arranged spaced apart along the second horizontal direction, the downstream accommodation groove row has a plurality of downstream accommodation grooves arranged spaced apart along the second horizontal direction, each of the upstream accommodation grooves and each of the downstream accommodation grooves has a width extending in the second horizontal direction, and the staggered interval of the downstream accommodation grooves and the adjacent upstream accommodation grooves in the second horizontal direction is half of the width.

[0014] The staggered battery carrying tray of the present application, the horizontal direction is a first horizontal direction, the staggered battery carrying tray includes two air inlet sides spaced apart along the first horizontal direction, the accommodation grooves are arranged into three accommodation groove rows, the accommodation groove rows are divided into two upstream accommodation groove rows and one downstream accommodation groove row, the upstream accommodation groove rows are adjacent to the air inlet sides respectively, the downstream accommodation groove row is located between the upstream accommodation groove rows and away from the air inlet sides, each of the upstream accommodation groove rows has a plurality of upstream accommodation grooves arranged spaced apart along a second horizontal direction perpendicular to the first horizontal direction, the downstream accommodation groove row has a plurality of downstream accommodation grooves arranged spaced apart along the second horizontal direction, and the height of the bottom end of each downstream accommodation groove in the longitudinal direction is higher than the height of the bottom end of the adjacent upstream accommodation groove in the longitudinal direction.

[0015] The staggered battery carrying tray of the present application, each of the air inlet sides is formed with a plurality of air inlet holes, and each of the air inlet holes is communicated with the corresponding upstream accommodation groove.

[0016] The staggered battery carrying tray of the present application, the staggered battery carrying tray includes two partition walls located between the air inlet sides and spaced apart along the first horizontal direction, each of the partition walls is formed with a plurality of air holes, and each of the air holes is communicated between the corresponding upstream accommodation groove and the corresponding downstream accommodation groove.

[0017] The staggered battery carrying tray of the present application, the staggered battery carrying tray includes a plurality of elevation blocks located at the bottom end of the downstream accommodation groove respectively.

[0018] The staggered battery carrying tray of the present application, the staggered battery carrying tray further includes a tray body, and a plurality of joint assemblies, the elevation blocks are assembled to the tray body, and each of the joint assemblies fixedly joints the corresponding elevation block to the tray body.

[0019] The staggered battery carrying tray of the present application, each of the joint assemblies includes a plurality of screws for locking the corresponding elevation block to the tray body.

[0020] The staggered battery carrying tray of the present application, the staggered battery carrying tray is a single member made by an integral molding manner, the staggered battery carrying tray includes a tray body, and the elevation blocks are integrally protruded from the tray body.

[0021] The beneficial effects of the present application are that: by arranging the at least two rows of accommodating grooves to be arranged in the first horizontal direction and staggered in at least one of the staggered directions perpendicular to the first horizontal direction, the electrodes of the batteries accommodated in the upstream accommodating grooves do not block the flow path of the air flow to the electrodes of the batteries accommodated in the downstream accommodating grooves. In this way, the entire batteries carried by the staggered battery carrying tray can be well cooled, thereby obtaining good uniformity. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a perspective view of a first embodiment of the staggered battery carrying tray of the present application carrying a plurality of batteries;

[0023] Figure 2 is an exploded perspective view of the first embodiment and the batteries;

[0024] Figure 3 is a top view of the first embodiment, illustrating the assembly relationship between a tray body, a plurality of spacer blocks, and a plurality of engagement assemblies;

[0025] Figure 4 is an incomplete exploded perspective view of the first embodiment;

[0026] Figure 5 is a cross-sectional view taken along the line V-V in Figure 3 ;

[0027] Figure 6 is a top view of the first embodiment and the batteries;

[0028] Figure 7 is a cross-sectional view taken along the line VII-VII in Figure 6 ;

[0029] Figure 8 is a perspective view of a second embodiment of the staggered battery carrying tray of the present application;

[0030] Figure 9 is a cross-sectional view of the second embodiment;

[0031] Figure 10 is a top view of a third embodiment of the staggered battery carrying tray of the present application carrying the batteries;

[0032] Figure 11 is a cross-sectional view taken along the line XI-XI in Figure 10 ;

[0033] Figure 12 is a top view of a fourth embodiment of the staggered battery carrying tray of the present application carrying the batteries;

[0034] Figure 13 is a sectional view taken along the line XIII-XIII in Figure 12 DETAILED DESCRIPTION

[0035] The present application will be described in detail below with reference to the drawings and embodiments.

[0036] Before the present application is described in detail, it is to be understood that like elements are denoted by like numbers in the figures.

[0037] Referring to Figure 1 and Figure 2 , a first embodiment of the interleaved battery carrying tray 100 is applied in a battery formation device (not shown). The interleaved battery carrying tray 100 is used to carry a plurality of batteries 4 to be electrically connected to a charge-discharge device (not shown). Each of the batteries 4 has two electrodes 41 at the top end thereof to be electrically connected to the charge-discharge device.

[0038] For the convenience of subsequent description, a first horizontal direction D1, a second horizontal direction D2 perpendicular to the first horizontal direction D1, and a longitudinal direction D3 perpendicular to the first horizontal direction D1 and the second horizontal direction D2 of the interleaved battery carrying tray 100 are defined. The first horizontal direction D1 is exemplified as a left-right direction, Figure 1 the direction indicated by the arrow is left, and the reverse direction is right. The second horizontal direction D2 is exemplified as a front-rear direction, Figure 1 the direction indicated by the arrow is front, and the reverse direction is rear. The longitudinal direction D3 is an up-down direction, Figure 1 the direction indicated by the arrow is up, and the reverse direction is down.

[0039] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 ​The staggered battery carrying tray 100 comprises a tray body 1, a plurality of spacer blocks 2, and a plurality of joint assemblies 3. The tray body 1 is integrally formed by plastic through, for example, injection molding. The tray body 1 has a bottom wall 11, two side walls 12, two end walls 13, and two partition walls 14. The side walls 12 are respectively connected to opposite sides of the bottom wall 11 and are spaced apart along the first horizontal direction D1. The end walls 13 are respectively connected to opposite ends of the bottom wall 11 and are spaced apart along the second horizontal direction D2. Each of the end walls 13 is connected to the side walls 12. The partition walls 14 are connected between the top surface of the bottom wall 11 and the end walls 13. The partition walls 14 are located between the side walls 12 and are spaced apart along the first horizontal direction D1. Each of the partition walls 14 is spaced apart from the adjacent side wall 12 along the first horizontal direction D1. Each of the side walls 12 is an air inlet side 120 facing a fan (not shown) of the battery formation equipment. The air flow formed by the fan can flow to the center of the staggered battery carrying tray 100 through the air inlet side 120.

[0040] The bottom wall 11, the end walls 13, and the adjacent side walls 12 and partition walls 14 together define a plurality of accommodation grooves arranged spaced apart along the second horizontal direction D2. Each of the accommodation grooves is an upstream accommodation groove 15 adjacent to the air inlet side 120 for accommodating a corresponding battery 4. All of the upstream accommodation grooves 15 together form an upstream accommodation groove row UR adjacent to the air inlet side 120. By the above-mentioned manner of defining the upstream accommodation groove row UR, the tray body 1 has two upstream accommodation groove rows UR.

[0041] The spacer blocks 2 are assembled on the top surface of the bottom wall 11 of the tray body 1 and are located between the end walls 13 and the partition walls 14. The spacer blocks 2 are arranged spaced apart along the second horizontal direction D2. The bottom wall 11, the end walls 13, the partition walls 14, and the spacer blocks 2 together define a plurality of accommodation grooves arranged spaced apart along the second horizontal direction D2. Each of the accommodation grooves is a downstream accommodation groove 16 away from the air inlet side 120 for accommodating a corresponding battery 4. All of the downstream accommodation grooves 16 together form a downstream accommodation groove row DR away from the air inlet side 120 and located between the upstream accommodation groove rows UR. The upstream accommodation groove rows UR and the downstream accommodation groove row DR are arranged spaced apart along the first horizontal direction D1.

[0042] In the first embodiment, the downstream accommodation groove row DR and the adjacent upstream accommodation groove row UR are arranged staggered in two staggered directions. One of the staggered directions is the second horizontal direction D2, and the other of the staggered directions is the longitudinal direction D3.

[0043] Specifically, each of the upstream accommodation slots 15 and each of the downstream accommodation slots 16 has a width W extending in the second horizontal direction D2. An interlaced spacing S between the downstream accommodation slot row DR and the adjacent upstream accommodation slot row UR in the second horizontal direction D2 is half of the width W. Thus, the downstream accommodation slot row DR and the adjacent upstream accommodation slot row UR can be horizontally interlaced in the second horizontal direction D2. By virtue of the design that the spacer blocks 2 are assembled on the top surface of the bottom wall 11 of the tray body 1 and are respectively located at the bottom ends of the downstream accommodation slots 16, the height of the bottom end of each of the downstream accommodation slots 16 in the longitudinal direction D3 is higher than the height of the bottom end of the adjacent upstream accommodation slot 15 in the longitudinal direction D3. Thus, the downstream accommodation slot row DR and the adjacent upstream accommodation slot row UR can be vertically interlaced in the longitudinal direction D3.

[0044] Each of the engagement assemblies 3 fixedly engages the corresponding spacer block 2 to the bottom wall 11 of the tray body 1, so that the spacer block 2 can be stably fixed to the bottom wall 11 without being separated from the bottom wall 11. In the first embodiment, the bottom wall 11 is formed with a plurality of screw holes 111. Each of the spacer blocks 2 is formed with a plurality of through holes 21, each of which is communicated with the corresponding screw hole 111. Each of the engagement assemblies 3 includes a plurality of screws 31. Each of the screws 31 is threaded into the corresponding through hole 21 and screwed into the corresponding screw hole 111 to lock the spacer block 2 to the bottom wall 11. It should be noted that in other implementation manners of the first embodiment, each of the engagement assemblies 3 can also be a double-sided adhesive or an adhesive layer for adhering the spacer block 2 and the bottom wall 11 together, not limited to the screw locking manner.

[0045] Referring to Figure 2 , Figure 4 , Figure 6 and Figure 7 , each of the side walls 12 is formed with a plurality of air inlet holes 121. Each of the air inlet holes 121 is communicated with the corresponding upstream accommodation slot 15. The air inlet hole 121 is used for the airflow generated by the corresponding fan to flow through, so that the airflow cools the battery 4 located in the upstream accommodation slot 15. Each of the partition walls 14 is formed with a plurality of air passage holes 141. Each of the air passage holes 141 is communicated between the corresponding upstream accommodation slot 15 and the corresponding downstream accommodation slot 16. The air passage hole 141 is used for the airflow generated by the corresponding fan to flow through, so that the airflow cools the battery 4 located in the downstream accommodation slot 16.

[0046] Referring to Figure 1 , Figure 6 and Figure 7, the downstream receiving groove row DR of the staggered battery carrying tray 100 and the adjacent upstream receiving groove row UR are horizontally staggered along the second horizontal direction D2, so that the batteries 4 accommodated in the downstream receiving groove 16 are horizontally staggered and distributed with the batteries 4 accommodated in the upstream receiving groove 15 along the second horizontal direction D2. In this way, the electrodes 41 of the batteries 4 accommodated in the upstream receiving groove 15 will not block the flow path of the air flow from the air inlet above the air inlet side 120 to the electrodes 41 of the batteries 4 accommodated in the downstream receiving groove 16, so that the air flow can directly cool the electrodes 41 of the batteries 4 accommodated in the downstream receiving groove 16 in addition to directly cooling the electrodes 41 of the batteries 4 accommodated in the upstream receiving groove 15.

[0047] In addition, the downstream receiving groove row DR of the staggered battery carrying tray 100 and the adjacent upstream receiving groove row UR are vertically staggered along the longitudinal direction D3, so that the batteries 4 accommodated in the downstream receiving groove 16 are vertically staggered and distributed with the batteries 4 accommodated in the upstream receiving groove 15 along the longitudinal direction D3. In this way, the electrodes 41 of the batteries 4 accommodated in the upstream receiving groove 15 will not block the flow path of the air flow from the air inlet above the air inlet side 120 to the electrodes 41 of the batteries 4 accommodated in the downstream receiving groove 16, so that the air flow can directly cool the electrodes 41 of the batteries 4 accommodated in the downstream receiving groove 16 in addition to directly cooling the electrodes 41 of the batteries 4 accommodated in the upstream receiving groove 15. Moreover, the area of the batteries 4 accommodated in the downstream receiving groove 16 directly contacted by the air flow can be increased, thereby further improving the cooling effect of the batteries 4 accommodated in the downstream receiving groove 16.

[0048] Furthermore, the air inlet hole 121 of each side wall 12 is designed so that the air flow can pass through the air inlet hole 121 to directly cool the part below the electrodes 41 of the batteries 4 in the upstream receiving groove 15. The air passage hole 141 of each partition wall 14 is designed so that the air flow can pass through the air passage hole 141 to directly cool the part below the electrodes 41 of the batteries 4 in the downstream receiving groove 16.

[0049] The foregoing design of the staggered battery carrying tray 100 enables the entire batteries 4 carried by the staggered battery carrying tray 100 to be well cooled, thereby achieving good temperature uniformity.

[0050] It is to be noted that the staggered battery carrying tray 100 of the first embodiment can also have the following different implementation manners according to requirements: the number of the upstream accommodation groove rows UR and the number of the air inlet sides 120 of the staggered battery carrying tray 100 are each one.

[0051] Referring to Figure 8 and Figure 9 , a second embodiment of the staggered battery carrying tray 100 of the present application has substantially the same overall structure as the first embodiment, except that the connection manner between the spacer blocks 2 and the bottom wall 11 of the tray body 1 is different.

[0052] In the second embodiment, the staggered battery carrying tray 100 is a single member made of plastic by an integral molding manner such as injection molding. The spacer blocks 2 are integrally protruded on the top surface of the bottom wall 11 of the tray body 1. Thus, the second embodiment provides the staggered battery carrying tray 100 which has a small number of members and does not need to be assembled.

[0053] It is to be noted that the staggered battery carrying tray 100 of the second embodiment can also have the following different implementation manners according to requirements: the number of the upstream accommodation groove rows UR and the number of the air inlet sides 120 of the staggered battery carrying tray 100 are each one.

[0054] Referring to Figure 10 and Figure 11 , a third embodiment of the staggered battery carrying tray 100 of the present application has substantially the same overall structure as the first embodiment, except that the staggered manner of the downstream accommodation groove rows DR and the adjacent upstream accommodation groove rows UR is different.

[0055] In the third embodiment, the downstream accommodation groove rows DR and the adjacent upstream accommodation groove rows UR are staggered in only one staggered direction, which is the second horizontal direction D2.

[0056] It is to be noted that the staggered battery carrying tray 100 of the third embodiment can also have the following different implementation manners according to requirements: the number of the upstream accommodation groove rows UR and the number of the air inlet sides 120 of the staggered battery carrying tray 100 are each one.

[0057] Referring to Figure 12 and Figure 13 , a fourth embodiment of the staggered battery carrying tray 100 of the present application has substantially the same overall structure as the first embodiment, except that the staggered manner of the downstream accommodation groove rows DR and the adjacent upstream accommodation groove rows UR is different.

[0058] In the fourth embodiment, the downstream rows of accommodation slots DR and the adjacent upstream rows of accommodation slots UR are staggered in only one staggered direction, which is the longitudinal direction D3.

[0059] It is noted that the staggered battery carrying tray 100 of the fourth embodiment can also have the following different implementation manners according to requirements:

[0060] In one implementation manner, the number of the upstream rows of accommodation slots UR and the number of the air inlet side 120 of the staggered battery carrying tray 100 are each one.

[0061] In another implementation manner, the staggered battery carrying tray 100 is a single member made of plastic by an integral molding method such as injection molding. The spacer blocks 2 are integrally protruded on the top surface of the bottom wall 11 of the tray body 1.

[0062] In summary, in the staggered battery carrying tray 100 of each embodiment, the at least two rows of accommodation slots, i.e., the downstream rows of accommodation slots DR and the adjacent upstream rows of accommodation slots UR, are arranged in the first horizontal direction D1 and staggered in at least one staggered direction perpendicular to the first horizontal direction D1, so that the electrodes 41 of the batteries 4 accommodated in the upstream accommodation slots 15 do not block the flow path of the air flow to the electrodes 41 of the batteries 4 accommodated in the downstream accommodation slots 16. In this way, the entire batteries 4 carried by the staggered battery carrying tray 100 can be well cooled, thereby obtaining good temperature uniformity, and achieving the purpose of the present application.

Claims

1. An interleaved battery carrier tray, characterized in that: the interleaved battery carrier tray comprises a plurality of accommodation slots arranged into at least two rows of accommodation slots, the rows of accommodation slots are arranged in a horizontal direction and are staggered in at least one staggered direction perpendicular to the horizontal direction.

2. The staggered battery carrying tray of claim 1, wherein: the horizontal direction is a first horizontal direction, and the staggered direction is a second horizontal direction.

3. The staggered battery carrying tray of claim 1, wherein: the staggered direction is a longitudinal direction.

4. The staggered battery carrying tray of claim 1, wherein: the rows of accommodation slots are arranged in two staggered directions, the horizontal direction is a first horizontal direction, one of the staggered directions is a second horizontal direction, and the other of the staggered directions is a longitudinal direction, the longitudinal direction is perpendicular to the first horizontal direction and the second horizontal direction.

5. The staggered battery carrying tray of any one of claims 1 to 4, wherein: the rows of accommodation slots are arranged into three rows of accommodation slots, and every two adjacent rows of accommodation slots are staggered in the staggered direction.

6. The staggered battery carrying tray of claim 2, wherein: the interleaved battery carrier tray comprises an air inlet side, the rows of accommodation slots are divided into an upstream row of accommodation slots and a downstream row of accommodation slots, the upstream row of accommodation slots is adjacent to the air inlet side, the downstream row of accommodation slots is spaced apart from the upstream row of accommodation slots in the first horizontal direction and away from the air inlet side, the upstream row of accommodation slots has a plurality of upstream accommodation slots arranged in the second horizontal direction, the downstream row of accommodation slots has a plurality of downstream accommodation slots arranged in the second horizontal direction, each of the upstream accommodation slots and each of the downstream accommodation slots has a width extending in the second horizontal direction, and the staggered distance between the downstream accommodation slots and the adjacent upstream accommodation slots in the second horizontal direction is half of the width.

7. The staggered battery carrying tray of claim 3, wherein: the horizontal direction is a first horizontal direction, the interleaved battery carrier tray comprises an air inlet side, the rows of accommodation slots are divided into an upstream row of accommodation slots and a downstream row of accommodation slots, the upstream row of accommodation slots is adjacent to the air inlet side, the downstream row of accommodation slots is spaced apart from the upstream row of accommodation slots in the first horizontal direction and away from the air inlet side, the upstream row of accommodation slots has a plurality of upstream accommodation slots arranged in a second horizontal direction perpendicular to the first horizontal direction, the downstream row of accommodation slots has a plurality of downstream accommodation slots arranged in the second horizontal direction, and a height of a bottom end of each of the downstream accommodation slots in the longitudinal direction is higher than a height of a bottom end of each of the adjacent upstream accommodation slots in the longitudinal direction.

8. The staggered battery carrying tray of claim 6 or 7, wherein: the air inlet side is formed with a plurality of air inlet holes, and each of the air inlet holes is communicated with a corresponding upstream accommodation slot.

9. The staggered battery carrying tray of claim 2, wherein: The staggered battery carrying tray comprises two air inlet sides spaced apart along the first horizontal direction, the accommodation grooves are arranged into three accommodation groove rows, the accommodation groove rows are divided into two upstream accommodation groove rows and one downstream accommodation groove row, the upstream accommodation groove rows are adjacent to the air inlet sides respectively, the downstream accommodation groove row is located between the upstream accommodation groove rows and away from the air inlet sides, each of the upstream accommodation groove rows has a plurality of upstream accommodation grooves arranged spaced apart along the second horizontal direction, the downstream accommodation groove row has a plurality of downstream accommodation grooves arranged spaced apart along the second horizontal direction, each of the upstream accommodation grooves and each of the downstream accommodation grooves has a width extending in the second horizontal direction, and the staggered distance between the downstream accommodation grooves and the adjacent upstream accommodation grooves in the second horizontal direction is half of the width.

10. The staggered battery carrying tray of claim 3, wherein: The horizontal direction is a first horizontal direction, the staggered battery carrying tray comprises two air inlet sides spaced apart along the first horizontal direction, the accommodation grooves are arranged into three accommodation groove rows, the accommodation groove rows are divided into two upstream accommodation groove rows and one downstream accommodation groove row, the upstream accommodation groove rows are adjacent to the air inlet sides respectively, the downstream accommodation groove row is located between the upstream accommodation groove rows and away from the air inlet sides, each of the upstream accommodation groove rows has a plurality of upstream accommodation grooves arranged spaced apart along a second horizontal direction perpendicular to the first horizontal direction, the downstream accommodation groove row has a plurality of downstream accommodation grooves arranged spaced apart along the second horizontal direction, and a height of a bottom end of each of the downstream accommodation grooves in the longitudinal direction is higher than a height of a bottom end of the adjacent upstream accommodation grooves in the longitudinal direction.

11. The staggered battery carrying tray of claim 9 or 10, wherein: Each of the air inlet sides is formed with a plurality of air inlet holes, and each of the air inlet holes is communicated with the corresponding upstream accommodation groove.

12. The staggered battery carrying tray of claim 9 or 10, wherein: The staggered battery carrying tray comprises two partition walls spaced apart along the first horizontal direction between the air inlet sides, each of the partition walls is formed with a plurality of air passage holes, and each of the air passage holes is communicated between the corresponding upstream accommodation groove and the corresponding downstream accommodation groove.

13. The staggered battery carrying tray of claim 7 or 10, wherein: The staggered battery carrying tray comprises a plurality of elevation blocks respectively located at the bottom ends of the downstream accommodation grooves.

14. The staggered battery carrying tray of claim 13, wherein: The staggered battery carrying tray further comprises a tray body and a plurality of joint assemblies, the elevation blocks are assembled to the tray body, and each of the joint assemblies fixedly joints the corresponding elevation block to the tray body.

15. The staggered battery carrying tray of claim 14, wherein: Each of the joint assemblies comprises a plurality of screws locking the corresponding elevation block to the tray body.

16. The staggered battery carrying tray of claim 13, wherein: The staggered battery carrying tray is a single member manufactured by an integral molding manner, the staggered battery carrying tray comprises a tray body, and the elevation blocks are integrally protruded from the tray body.

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