CN214753871U

CN214753871U - Battery tray

Info

Publication number: CN214753871U
Application number: CN202120809134.3U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-16
Anticipated expiration: 2031-04-20

Abstract

The utility model relates to a battery tray. This battery tray includes: a base plate; the side plate assembly is arranged on the bottom plate and comprises two main side plates which are oppositely arranged and at least two auxiliary side plates which are connected between the two main side plates; the two main side plates are provided with mounting parts, and mounting matching parts are arranged at the positions of the bottom plate corresponding to the two mounting parts; one of the mounting part and the mounting matching part comprises a sliding groove which is penetrated along the first direction, and the other one comprises a protruding part which enters and exits the sliding groove along the first direction; at least two supplementary curb plates and two main curb plates lie in the same one side of bottom plate jointly to enclose with the bottom plate and form the chamber of acceping that is used for the holding battery.

Description

Battery tray

Technical Field

The utility model relates to a battery production facility technical field especially relates to a battery tray.

Background

In the manufacturing process of the lithium battery, a liquid injection machine is required to inject liquid into the battery. Since high-pressure liquid injection is generally adopted, the battery is easy to expand and deform. In order to prevent the battery from being deformed, the battery is placed in a battery tray during liquid injection, and the deformation of the battery is limited by using the battery tray. However, the conventional battery tray is assembled by screws, and a large number of screws are required to be screwed during installation and disassembly, which results in a complicated disassembly and assembly process.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a battery push tray for overcoming the above-mentioned drawbacks, in order to solve the problems that the battery tray in the prior art is assembled by screws, and a large number of screws are required to be screwed during installation and disassembly, which results in a complicated disassembly and assembly process.

A battery tray, comprising:

a base plate; and

the side plate assembly is arranged on the bottom plate and comprises two main side plates which are oppositely arranged and at least two auxiliary side plates which are connected between the two main side plates; the two main side plates are respectively provided with an installation part, and installation matching parts are arranged at the positions of the bottom plate corresponding to the two installation parts;

one of the mounting part and the mounting matching part comprises a sliding groove which penetrates along a first direction, and the other mounting part comprises a protruding part which enters and exits the sliding groove along the first direction;

the at least two auxiliary side plates and the two main side plates are located on the same side of the bottom plate together, and form an accommodating cavity for accommodating batteries in an enclosing mode with the bottom plate.

In one embodiment, the mounting portion includes the slide groove, and the mounting engagement portion includes the projection.

In one embodiment, the opening of the sliding groove on any one of the two main side plates faces to the other main side plate.

In one embodiment, the two main side plates are arranged at intervals along a second direction perpendicular to the first direction, the number of the auxiliary side plates is two, the two auxiliary side plates are arranged at intervals along the first direction, and two opposite ends of each auxiliary side plate are detachably connected with the two main side plates respectively.

In one embodiment, the battery tray further comprises a connecting member, and the bottom plate is detachably connected with the main side plate and/or the auxiliary side plate through the connecting member.

In one embodiment, a side of the bottom plate, which faces away from the accommodating cavity, is provided with a first positioning hole.

In one embodiment, one side of the bottom plate, which faces away from the containing cavity, is provided with a concave part which is formed by inwards concave.

In one of them embodiment, the battery tray still includes buckle subassembly and notes liquid apron, each the one end that main side board 21 deviates from the bottom plate is installed buckle subassembly, buckle subassembly is used for with annotate the liquid apron spacing in two the main side board deviates from the one end of bottom plate.

In one embodiment, the battery tray further comprises a guide assembly, and one end of the two main side plates, which is away from the bottom plate, is provided with the guide assembly;

the guide assembly comprises a positioning column, a first elastic piece and a gasket, the positioning column is connected to the corresponding main side plate and used for being matched with a second positioning hole in the liquid injection cover plate in a positioning mode, the gasket is sleeved outside the positioning column, the first elastic piece is abutted to the gasket and the corresponding main side plate, and the gasket is made to face towards the positioning column and to be arranged between the main side plate and the gasket and to provide pre-tightening force for moving the liquid injection cover plate so as to support the liquid injection cover plate.

In one embodiment, the battery tray further comprises a partition assembly, the partition assembly comprises two partition pieces arranged on one side of the bottom plate facing the accommodating cavity, the two partition pieces are arranged at intervals along the first direction, each partition piece longitudinally extends along a second direction perpendicular to the first direction, and is provided with a plurality of battery accommodating grooves arranged along the second direction;

the battery accommodating grooves on one of the separators correspond to the battery accommodating grooves on the other separator one by one, and the two corresponding battery accommodating grooves are used for positioning batteries together;

each of the partitions includes at least two partition sub-pieces arranged along the second direction.

In one embodiment, each of the separating sub-pieces has a positioning portion, and the bottom plate has a positioning matching portion corresponding to the positioning portion one to one;

one of the positioning part and the positioning matching part comprises a third positioning hole, and the other of the positioning part and the positioning matching part comprises a positioning pin which is inserted into the corresponding third positioning hole.

Above-mentioned battery tray, the both ends of bottom plate slide in the spout and join in marriage each other through the bulge and connect, realize being connected with the main curb plate, realize the equipment of bottom plate and main curb plate promptly. Compared with the prior art, the number of screws between the bottom plate and the main side plate and between the bottom plate and the auxiliary side plate is reduced, so that the number of screws required to be screwed during disassembly and assembly is reduced, and the disassembly and assembly process is simplified.

Drawings

Fig. 1 is a front view of a battery tray according to an embodiment of the present invention;

fig. 2 is a top view of the battery tray shown in fig. 1 (with the liquid injection cover plate omitted);

FIG. 3 is an enlarged view of the structure at A shown in FIG. 1;

FIG. 4 is a side view of the battery tray shown in FIG. 1;

fig. 5 is a bottom view of the battery tray shown in fig. 1;

FIG. 6 is a schematic structural view of a snap assembly of the battery tray shown in FIG. 4;

fig. 7 is a schematic structural view of a snap assembly of the battery tray shown in fig. 4 (the fixing base is omitted);

FIG. 8 is a schematic view of the liquid injection cover plate in an extruded position in cooperation with the snap assembly;

FIG. 9 is a schematic view of the liquid injection cover plate and the snap assembly in a locked position.

Detailed Description

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

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

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

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

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

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

Referring to fig. 1, fig. 2 and fig. 3, a battery tray according to an embodiment of the present invention includes a bottom plate 10 and a side plate assembly 20 disposed on the bottom plate 10. The side plate assembly 20 includes two main side plates 21 disposed opposite to each other and at least two auxiliary side plates 22 connected between the two main side plates 21. The two main side plates 21 are provided with mounting portions, and mounting engagement portions are provided at positions of the bottom plate 10 corresponding to the two mounting portions.

One of the mounting portion and the mounting engagement portion includes a sliding groove 211, and the other of the mounting portion and the mounting engagement portion includes a protrusion 11 coming in and out of the sliding groove 211 along a first direction. The at least two auxiliary side plates 22 and the two main side plates 21 are located on the same side of the bottom plate 10, and enclose with the bottom plate 10 to form an accommodating cavity 12 for accommodating a battery.

In this way, the two ends of the bottom plate 10 slide into the sliding grooves 211 through the protrusions 11 and are coupled with each other, so as to connect with the main side plate 21, i.e., to assemble the bottom plate 10 and the main side plate 21. Compared with the prior art, the number of screws between the bottom plate 10 and the main side plate 21 and the auxiliary side plate 22 is reduced, so that the number of screws required to be screwed during disassembly and assembly is reduced, and the disassembly and assembly process is simplified.

The embodiment of the utility model provides an in, the installation department includes spout 211, and installation cooperation portion includes bulge 11. That is, both ends of the bottom plate 10 are provided with the protrusions 11, and both the main side plates 21 have the slide grooves 211. Thus, when the bottom plate 10 is assembled, the protruding parts 11 at the two opposite ends of the bottom plate 10 are inserted into the sliding grooves 211 from the ends of the corresponding sliding grooves 211, so that the assembly and disassembly are convenient and quick.

It is understood that in order to facilitate the insertion of the protrusion 11 into the corresponding slide slot 211, at least one end of each slide slot 211 penetrates the main side plate 21 in the first direction, so that the protrusion 11 can be inserted from the end of the slide slot 211 penetrating the main side plate 21. In this way, when assembling the base plate 10, it is only necessary to insert the protrusion 11 of the base plate 10 from the end of the corresponding slide groove 211; when detaching, only the protruding part 11 of the bottom plate 10 needs to be pulled out from the end of the sliding groove 211, and the bottom plate 10 is conveniently and quickly detached. In the embodiment shown in fig. 1 in particular, the first direction is the direction perpendicular to the plane of the paper.

Specifically, in the embodiment, the two main side plates 21 are arranged at intervals along a second direction perpendicular to the first direction, the number of the auxiliary side plates 22 is two, the two auxiliary side plates 22 are arranged at intervals along the first direction, and opposite ends of each auxiliary side plate 22 are detachably connected with the two main side plates 21, so that the two main side plates 21 and the two auxiliary side plates 22 and the bottom plate 10 jointly enclose the accommodating cavity 12. Alternatively, the main side plate 21 and the auxiliary side plate 22 may be connected by screws. Specifically, in the embodiment shown in fig. 1, the first direction is a direction perpendicular to the paper surface, and the second direction is a left-right direction.

In the embodiment, the opening of the sliding groove 211 on any one of the two main side plates 21 is disposed toward the other main side plate 21. That is, the openings of the slide grooves 211 in the two main side plates 21 open toward each other. In this manner, the bottom plate 10 is defined in the third direction perpendicular to the first direction and the second direction by the cooperation of the slide groove 211 and the projection 11, so that the bottom plate 10 cannot move in the third direction relative to the main side plate 21. Alternatively, the side walls of the two main side plates 21 facing each other are recessed to form slide grooves 211, respectively. Specifically to the embodiment shown in fig. 1, the third direction is an up-down direction.

In order to prevent the bottom plate 10 from sliding along the slide groove 211, in particular, in the embodiment, the battery tray further includes a coupling member by which the bottom plate 10 is detachably coupled with the main side plate 21 or the auxiliary side plate 22. Of course, the bottom plate 10 may be fastened to each main side plate 21, a part of the main side plate 21, each auxiliary side plate 22, or a part of the auxiliary side plate 22 by using a connecting member, which is not limited herein. Alternatively, the connecting member may be a screw or a pin, etc., and is not limited herein.

Referring to fig. 4 and 5, in an embodiment of the present invention, a first positioning hole 14 is formed on a side of the bottom plate 10 away from the accommodating cavity 12. Thus, the first positioning hole 14 can be inserted and matched with the positioning rod when the bottom plate 10 moves or moves up and down at each station, so that the battery tray can be positioned. For example, the first positioning hole 14 is inserted into and engaged with a positioning rod of the elevating mechanism during the elevating operation, thereby preventing the battery tray from shifting during the elevating operation. Or, when transporting on the transfer chain, can cooperate with the locating lever grafting on the transfer chain, avoid battery tray to take place the skew when transporting along the transfer chain.

The embodiment of the utility model provides an in, one side that bottom plate 10 deviates from and accepts chamber 12 has the depressed part 13 of inside sunken formation to alleviate bottom plate 10's weight, improve battery tray's lightweight degree, be favorable to reduce cost, alleviate the load of transfer chain.

In the embodiment of the present invention, each main side plate 21 has a hollow portion 212 to save material and reduce the weight of the battery tray.

Specifically, in the embodiment, in order to facilitate the carrying mechanism to carry the battery tray, so as to realize the circulation of the battery between the plurality of stations, the two main side plates 21 are respectively provided with the grabbing holes 213, and the grabbing holes 213 can be inserted by the carrying mechanism, so as to facilitate the carrying mechanism to carry the battery tray.

Further, the size of the upper end of the grabbing hole 213 is smaller than that of the lower end, the carrying mechanism can be inserted into the grabbing hole 213 from the lower end of the grabbing hole 213 with larger size, and then lifted upwards, and the carrying mechanism can be slid into the upper end of the grabbing hole 213 with smaller size for fixing, and then carrying can be performed. Thus, the carrying mechanism does not need to be precisely aligned when carrying the battery tray, and only needs to first extend into the lower end of the grabbing hole 213 with a larger size.

Optionally, a two-dimensional code 214 may be further disposed on any one of the main side panels 21 or any one of the auxiliary side panels 22, so as to facilitate entry of relevant production information. Such as battery handling schedule, number of batteries, model number, pass number, fail number, etc.

Please refer to fig. 1 and 4, in an embodiment of the present invention, the battery tray further includes a buckle assembly 40 and a liquid injection cover plate 30, and the buckle assembly 40 is installed at one end of each of the two main side plates 21 departing from the bottom plate 10. The fastening assembly 40 is used for limiting the liquid injection cover plate 30 at one end of the two main side plates 21 departing from the bottom plate 10 so as to seal the accommodating cavity 12 for accommodating the battery. Thus, before liquid injection, the liquid injection cover plate 30 is limited at one end of the two main side plates 21 departing from the bottom plate 10 by the buckle assembly 40, so that the accommodating cavity 12 for accommodating the battery is sealed, and then the battery in the accommodating cavity 12 is injected with liquid.

Referring to fig. 6 and 7, in an embodiment, the fastening assembly 40 includes a fixing seat 41 and a limiting member 42, the fixing seat 41 is fixedly connected to the corresponding main side plate 21, and the limiting member 42 is disposed on the fixing seat 41 and configured to abut against a side of the injection cover plate 30 away from the two main side plates 21, so as to prevent the injection cover plate 30 from moving in a direction away from the two main side plates 21, and keep the injection cover plate 30 covering the two main side plates 21.

Further, the fastening assembly 40 further includes a second elastic member 43, and the limiting member 42 is pivotally connected to the fixing base 41 and has a connecting end 422 and a limiting end 421 located at two opposite sides of the pivot axis B. The limiting member 42 includes a receding state in which the injection cover plate 30 is allowed to move toward the two main side plates 21 and a limiting state in which the injection cover plate 30 is prevented from moving away from the main side plates 21 during the rotation around the pivot axis B. The second elastic element 43 abuts between the connecting end 422 and the fixing base 41 to provide a pre-tightening force for rotating the limiting element 42 around the pivot axis B to a state where the limiting end 421 is in a limiting state. Alternatively, the second elastic member 43 may be a spring.

Further, the liquid injection cover plate 30 sequentially passes through the pressing position (see fig. 8) and the locking position (see fig. 9) in the process of moving close to the main side plate 21 by the external force.

When the liquid injection cover plate 30 moves towards the two main side plates 21 and passes through the extrusion position, the liquid injection cover plate 30 extrudes the limiting end 421, the second elastic member 43 stores energy, and the limiting member 42 rotates to the limiting end 421 and is in a yielding state. When the liquid injection cover plate 30 continues to move towards the two main side plates 21 and passes through the locking position, the second elastic member 43 releases energy, and the limiting member 42 rotates under the restoring force provided by the second elastic member 43 until the limiting end 421 abuts against one side of the liquid injection cover plate 30 far away from the two main side plates 21, that is, rotates until the limiting end 421 is in a limiting state.

Further, the limiting member 42 is further provided with a supporting member 44, the supporting member 44 is located between the pivot B and the limiting end 421, and is used for supporting against the fixing seat 41, so that the limiting end 421 is in a limiting state under the condition that the limiting member 42 is not subjected to an external force, and the limiting end 421 is prevented from being too inclined inwards, so that the limiting end 421 cannot be extruded to a yielding state in the process that the liquid injection cover plate 30 moves along the main side plate 21, and the liquid injection cover plate 30 cannot be covered on the two main side plates 21.

The embodiment of the utility model provides an in, battery tray is still including being used for going on the direction subassembly 50 that leads to annotating liquid apron 30, and this direction subassembly 50 is all installed to the one end that two main side boards 21 deviate from bottom plate 10.

The guiding assembly 50 includes a positioning post 51, a first elastic member 53 and a washer 52. The positioning posts 51 are connected to the corresponding main side plates 21, and are used for positioning and matching with the second positioning holes on the liquid injection cover plate 30. The gasket 52 is sleeved outside the positioning post 51, and the first elastic member 53 abuts between the gasket 52 and the corresponding main side plate 21 to provide a pre-tightening force for moving the gasket 52 along the positioning post 51 toward the injection cover plate 30, so as to support the injection cover plate 30. Alternatively, the first elastic member 53 may be a spring.

So, when liquid apron 30 is annotated in the lid closes, drive and annotate liquid apron 30 and move towards the direction that is close to two main curb plates 21 to reference column 51 inserts in annotating the second locating hole on the liquid apron 30, leads to annotating the removal of liquid apron 30, makes to annotate liquid apron 30 and can accurately close. During the movement of the liquid injection cover plate 30, the liquid injection cover plate 30 firstly passes through the extrusion position (see fig. 8), at this time, the liquid injection cover plate 30 extrudes the limiting end 421 of each limiting member 42, so that the limiting members 42 rotate to the limiting end 421 and are in a yielding state (i.e., the liquid injection cover plate 30 props up the limiting end 421 of each limiting member 42), meanwhile, the liquid injection cover plate 30 extrudes the first elastic member 53 through the gasket 52 to compress and store energy, and the connection end 422 of the limiting member 42 extrudes the second elastic member 43 to compress and store energy of the second elastic member 43. Then, the liquid injection cover plate 30 continues to move toward the direction close to the two main side plates 21 and passes through the limiting end 421, and then reaches the locking position (see fig. 9), at this time, the limiting member 42 rotates to the limiting end 421 to press against the side of the liquid injection cover plate 30 away from the two main side plates 21 under the restoring force of the second elastic member 43, that is, the limiting end 421 is in the limiting state. Meanwhile, the gasket 52 is abutted against one side of the liquid injection cover plate 30 facing the two main side plates 21 by the first elastic member 53 to support the liquid injection cover plate 30. To this end, the liquid injection cover plate 30 covers the two side plates to close the containing cavity 12 for placing the battery.

Further, the guide assembly 50 further includes an abutting seat, which is sleeved on the positioning pillar 51 and located on the side of the washer 52 close to the main side plate 21, and opposite ends of the first elastic member 53 abut against the washer 52 and the abutting seat 54, respectively.

Referring to fig. 2, in an embodiment of the present invention, the battery tray further includes a separation component, which includes two separators 60 disposed on one side of the bottom plate 10 facing the accommodating cavity 12. The two partitioning members 60 are arranged at intervals in a first direction, and each partitioning member 60 extends lengthwise in a second direction perpendicular to the first direction. Each of the separators 60 has a plurality of battery receiving grooves 612 arranged in the second direction. The battery receiving grooves 612 of one of the separators 60 correspond to the battery receiving grooves 612 of the other separator 60 one to one, and the two corresponding battery receiving grooves 612 are used to locate one battery together. Wherein each of the separating members 60 comprises at least two separating sub-members 61 arranged in the second direction.

In this manner, one battery is positioned together by the corresponding two battery receiving grooves 612, and thus a plurality of batteries can be positioned between the two separators 60. In order to prevent the separator 60 from scratching the battery, the separator 60 is generally made of plastic. However, the separator 60 made of plastic is easily deformed by a pressing force generated by expansion of the battery during liquid injection. In order to avoid the deformation of the partitioning members 60, in the present embodiment, each partitioning member 60 is designed to be composed of at least two partitioning sub-members 61, and the deformation is not easily caused since the length dimension of the single partitioning sub-member 61 becomes small.

Further, each of the partition members 61 has a positioning portion, and the bottom plate 10 has a positioning engagement portion corresponding to the positioning portion one to one. One of the positioning portion and the positioning fit portion includes a third positioning hole 611, and the other of the positioning portion and the positioning fit portion includes a positioning pin. The positioning pins are inserted into the corresponding third positioning holes 611, thereby positioning the partition sub 61 on the base plate 10. It should be noted that each of the partition members 61 has a plurality of positioning portions, and the plurality of positioning portions are arranged at intervals along the longitudinal direction (i.e., the second direction) of the partition member 61.

In the embodiment, the battery tray further includes a partition plate 70 disposed in the receiving cavity 12, and opposite ends of the partition plate 70 are fixedly connected to the two main side plates 21, so as to divide the receiving cavity 12 into two receiving sub-cavities. A partition assembly is disposed in each of the receiving sub-cavities, and two partitions 60 of each partition assembly respectively abut against sides of the auxiliary side plate 22 and the partition plate 70 facing each other, which are opposite in the first direction. It should be noted that, certainly, a plurality of partition boards 70 may be provided, the accommodating cavity 12 is divided into a plurality of accommodating sub-cavities by the plurality of partition boards 70, and a partition component is provided in each accommodating sub-cavity, so as to further increase the capacity of accommodating the battery, and be beneficial to improving the productivity.

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

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

Claims

1. A battery tray, comprising:

a base plate; and

the side plate assembly is arranged on the bottom plate and comprises two main side plates which are oppositely arranged and at least two auxiliary side plates which are connected between the two main side plates; the two main side plates are respectively provided with an installation part, and the bottom plate is respectively provided with an installation matching part at the position corresponding to the two installation parts;

wherein one of the mounting portion and the mounting engagement portion includes a slide groove penetrating in a first direction, and the other includes a projection portion capable of entering and exiting the slide groove in the first direction;

2. The battery tray of claim 1, wherein the mounting portion includes the runner and the mounting engagement portion includes the projection.

3. The battery tray according to claim 2, wherein the opening of the slide groove on either one of the two main side plates is provided toward the other main side plate.

4. The battery tray according to claim 1, wherein two of the main side plates are arranged at intervals in a second direction perpendicular to the first direction, the number of the subsidiary side plates is two, two of the subsidiary side plates are arranged at intervals in the first direction, and opposite ends of each of the subsidiary side plates are detachably connected to the two main side plates, respectively.

5. The battery tray according to claim 1, further comprising a connector, wherein the bottom plate is detachably connected to the main side plate and/or the auxiliary side plate through the connector.

6. The battery tray of claim 1, wherein a side of the bottom plate facing away from the receiving cavity has a recess formed to be inwardly recessed.

7. The battery tray of claim 1, further comprising a snap-fit assembly and a liquid injection cover plate, wherein the snap-fit assembly is mounted on one end of each of the main side plates away from the bottom plate, and the snap-fit assembly is used for limiting the liquid injection cover plate on one end of each of the two main side plates away from the bottom plate.

8. The battery tray of claim 7, further comprising a guide assembly mounted to an end of the two major side plates facing away from the bottom plate;

9. The battery tray according to claim 1, further comprising a partition assembly including two partition members provided on a side of the bottom plate facing the receiving cavity, the two partition members being arranged at intervals in the first direction, each partition member extending lengthwise in a second direction perpendicular to the first direction and having a plurality of battery receiving grooves arranged in the second direction;

10. The battery tray according to claim 9, wherein each of the partition members has a positioning portion, and the bottom plate has a positioning engagement portion corresponding one-to-one to the positioning portion;