CN217280710U - Battery piece loading box - Google Patents

Abstract

The application provides a battery piece loads magazine belongs to the solar energy component field of making. The bottom of the battery piece loading box comprises a first area and a second area, the first area is provided with a bottom plate, and the bottom plate is positioned on the inner side of the plurality of side walls of the battery piece loading box and is connected with at least one side wall; the second area is provided with a bottom opening communicated with the inner cavity of the battery piece loading material box; the inboard of every lateral wall of battery piece loading magazine all is equipped with the locating part, and the locating part extends to the top of lateral wall from the upper surface of bottom plate. The battery piece loading box can solve the technical problems of uneven blanking and edge breakage of battery pieces, so that the produced battery pieces are guaranteed to have high yield.

Description

Battery piece loading box

Technical Field

The application relates to the field of solar module manufacturing, in particular to a battery piece loading material box.

Background

In the prior art, in the process of blanking the battery piece, the battery piece loading material box needs to be used, but the problems of uneven blanking of the battery piece, edge breakage and the like are easily caused by the current battery piece loading material box, so that the yield of the produced battery piece is low.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery piece loads magazine can solve the uneven and technical problem who collapses the limit of battery piece unloading to guarantee that the battery piece of production has higher yield.

The embodiment of the application is realized as follows:

the embodiment of the application provides a battery piece loading box, the bottom of the battery piece loading box comprises a first area and a second area, the first area is provided with a bottom plate, and the bottom plate is positioned on the inner side of a plurality of side walls of the battery piece loading box and is connected with at least one side wall; the second area is provided with a bottom opening communicated with the inner cavity of the battery piece loading material box; the inboard of every lateral wall of battery piece loading magazine all is equipped with the locating part, and the locating part extends to the top of lateral wall from the upper surface of bottom plate.

In the technical scheme, the cavities of the side wall enclosures are used for accommodating the battery pieces, and the bottom plate arranged in the first area is used for supporting the accommodated battery pieces; the bottom opening arranged in the second area is used for realizing the lifting function of the jacking mechanism; the inner wall of each side wall is provided with a limiting piece, and the limiting pieces are limited to extend from the upper surface of the bottom plate to the tops of the side walls, so that on one hand, the blanking of the battery pieces can be limited and guided, and the battery pieces can be guaranteed to be blanked quickly and tidily; on the other hand, only part of the edge of the battery piece can be contacted with the limiting piece on the side wall of the battery piece loading box, so that the probability of edge breakage of the battery piece is effectively reduced.

In some alternative embodiments, the plurality of side walls include two long plates and two short plates which are oppositely arranged, and the limiting members positioned on the inner sides of the two short plates are symmetrically arranged two by two in the length direction of the battery piece loading box; the limiting parts positioned on the inner sides of the two long plates are arranged in a pairwise symmetry manner in the width direction of the battery piece loading material box.

In the technical scheme, the limiting pieces positioned on the inner sides of the two short plates are symmetrically arranged in pairs in the length direction of the battery piece loading material box; in the width direction of the battery piece loading material box, the limiting parts positioned on the inner sides of the two long plates are arranged in a pairwise symmetrical mode, and the battery pieces can be better limited and guided by the arrangement.

In some optional embodiments, in the length direction of the battery piece loading box, two limiting pieces are arranged on the inner side of each long plate, and the two limiting pieces are symmetrically arranged along the middle part of the long plate;

and/or a limiting piece is arranged on the inner side of each short plate in the width direction of the battery piece loading box.

In the technical scheme, as the size of the battery piece in the length direction of the battery piece loading material box is larger, in the length direction, the inner wall of the long plate is provided with the two limiting pieces and the two limiting pieces are limited to be symmetrical along the middle part of the long plate, so that the effect of fixing the long edge of the battery piece can be better achieved; meanwhile, the size of the battery piece in the length direction of the battery piece loading material box is small, and the inner wall of the short plate is provided with the limiting part so that the short edge of the battery piece can be well fixed.

In some alternative embodiments, the plurality of side walls comprises two elongated panels disposed in opposition; in the length direction of the battery piece loading material box, the top end face of each long plate is concavely provided with a first groove, and the first grooves penetrate through the long plates in the width direction of the battery piece loading material box.

Among the above-mentioned technical scheme, on the length direction that the battery piece loaded the magazine, the top terminal surface of every long board set up first recess and first recess runs through the long board on the width direction that the battery piece loaded the magazine, and the manual work of being convenient for carries out getting of battery piece and puts the operation.

In some optional embodiments, a surface of the side of the limiting member away from the side wall is an arc-shaped surface.

Among the above-mentioned technical scheme, set up the lateral surface that keeps away from the lateral wall with the locating part into the arcwall face for the battery piece only contacts with a part on locating part surface, and the arcwall face can make the contact area atress mild even, thereby reduces the probability that the battery piece bursts apart the limit better when exerting the spacing direction function of battery piece.

In some optional embodiments, the battery piece loading box is a box body made of an aluminum-plastic plate.

In the technical scheme, the material of the battery piece loading material box adopts an aluminum-plastic plate, and the battery piece loading material box has the advantages of light weight, corrosion resistance, easiness in processing and forming and the like.

In some alternative embodiments, the inside of at least one sidewall is coated with an antistatic coating.

Among the above-mentioned technical scheme, the inboard of lateral wall sets up antistatic coating, can reduce the influence of piece in-process static to the battery piece down to improve the uneven phenomenon of battery piece unloading that static leads to.

In some alternative embodiments, the battery piece is loaded in the magazine, and any two adjacent side walls are fixedly connected with each other.

In the technical scheme, any two adjacent side walls are fixedly connected, and the arrangement ensures that the stability of the whole structure of the battery piece loading material box is good; the periphery of the battery piece loading box is sealed, the long edges of the battery pieces can be prevented from being scraped by outside, and therefore the battery pieces are protected.

In some optional embodiments, in the height direction of the battery piece loading box, a second groove is formed at the boundary position of any two adjacent side walls in the direction away from the internal cavity, and the second groove extends from the upper surface of the bottom plate to the top of the side walls.

Among the above-mentioned technical scheme, set up the second recess and inject the top that the second recess extends to the lateral wall from the upper surface of bottom plate at the boundary position of two arbitrary adjacent lateral walls, can prevent that the four corners of battery piece and battery piece from loading the four corners contact of magazine to avoid the phenomenon that the unfilled corner appears in the battery piece.

In some optional embodiments, the battery piece loading magazine further includes a buffer plate disposed on an upper surface of the base plate.

Among the above-mentioned technical scheme, the setting of buffer board can alleviate the impact force that the bottom plate caused first battery piece under the battery piece in-process to avoid appearing the problem of lobe of a leaf.

Drawings

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

Fig. 1 is a schematic perspective view of a battery sheet loading box provided in an embodiment of the present application;

fig. 2 is a first view of a battery piece loading magazine provided in an embodiment of the present application;

FIG. 3 is a second view of the battery piece loading magazine provided in the embodiments of the present application;

fig. 4 is a partially enlarged view of a battery piece loading box provided in an embodiment of the present application.

Icon: 100-battery piece loading box; 110-bottom; 111-a first region; 1111-bottom plate; 112-a second region; 1121-bottom opening; 120-sidewalls; 121-a stopper; 1211-an arc surface; 122-long plate; 1221-a first recess; 123-short plate; 124-a second groove; 130-an internal cavity; 140-a buffer plate; 150-positioning holes;

a-height direction of the battery piece loading box; b, the length direction of the battery piece loading box; c-width direction of the battery piece loading box.

Detailed Description

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

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

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

In the description of the present application, it is to be noted that the terms "center", "upper", "lower", "inner", "outer", and the like refer to the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the application is conventionally placed in use, which are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

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

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the prior art, the battery piece loading material box 100 used in the battery piece blanking process is unreasonable in design of the limiting structure inside the battery piece loading material box 100, so that the problems of inaccurate battery piece positioning and edge breakage of the battery piece are easily caused, and the production yield of the battery piece in the blanking process is low.

The inventor researches and discovers that when the battery piece loading box 100 is designed, the limiting structure in the battery piece loading box 100 is adjusted and optimized, so that the problems of uneven blanking and edge breakage of the battery pieces can be effectively solved, and the production yield of the battery pieces in the blanking process is improved.

Referring to fig. 1-2, an embodiment of the present application provides a battery sheet loading magazine 100, wherein a bottom 110 of the battery sheet loading magazine 100 includes a first region 111 and a second region 112, the first region 111 is provided with a bottom plate 1111, and the bottom plate 1111 is located inside a plurality of side walls 120 of the battery sheet loading magazine 100 and is connected to at least one side wall 120; the second region 112 is provided with a bottom opening 1121 communicated with the internal cavity 130 of the battery piece loading box 100; the inner side of each side wall 120 of the battery sheet loading box 100 is provided with a limiting member 121, and the limiting member 121 extends from the upper surface of the bottom plate 1111 to the top of the side wall 120.

In the present application, the cavity surrounded by the plurality of sidewalls 120 is used for accommodating the battery piece, and the bottom plate 1111 disposed in the first region 111 is used for supporting the accommodated battery piece; the bottom opening 1121 formed in the second region 112 is used for implementing a lifting function of the jacking mechanism; the inner wall of each side wall 120 is provided with a limiting piece 121, and the limiting piece 121 is limited to extend from the upper surface of the bottom plate 1111 to the top of the side wall 120, so that on one hand, the blanking of the battery piece can be limited and guided, and the battery piece can be rapidly and tidily blanked; on the other hand, only part of the edge of the battery piece can be contacted with the limiting piece 121 of the side wall 120 of the battery piece loading box 100, so that the probability of edge breakage of the battery piece is effectively reduced.

In the drawings provided in this embodiment, the first view is a plan view, and the second view is a front view.

It should be noted that the number of the bottom plates 1111 may be one or more, and when one bottom plate 1111 is provided, as an example, the bottom plate 1111 is connected to the side wall 120 at all sides, and the bottom opening 1121 is formed through the bottom plate 1111.

In other embodiments, there may be a plurality of bottom plates 1111, each bottom plate 1111 may be connected to one side wall 120, two side walls 120, or three side walls 120, and it is understood that the bottom opening 1121 may be formed between the plurality of bottom plates 1111 as long as the stability of the battery sheet loading magazine 100 can be maintained.

As an example, the number of the bottom plates 1111 is two, two bottom plates 1111 are located at both ends of the battery sheet loading magazine 100, and each bottom plate 1111 is connected to three side walls 120.

In this embodiment, the bottom plate 1111 is connected to the three side walls 120, so as to provide better stability for the cassette 100 for loading battery cells, and prevent the bottom plate 1111 from falling off.

To better understand the structure of the battery sheet loading magazine 100, the arrangement of the side wall 120 is explained here.

As an example, the plurality of sidewalls 120 includes two long plates 122 and two short plates 123 disposed opposite each other.

It should be understood that the extending direction of the limiting member 121 is not limited, and may extend along the height direction a of the battery sheet loading magazine, or may form a certain angle with the height direction, as long as the limiting member 121 can extend from the upper surface of the bottom plate 1111 to the top of the side wall 120.

As an example, the stopper 121 extends in the height direction a of the battery sheet loading magazine.

It should be noted that the position of the bottom opening 1121 is not limited, and may be disposed at the center of the bottom 110 of the battery sheet loading magazine 100, or may be disposed at a position to the left or right. Here, the left-right direction refers to a positional relationship between the position of the bottom opening 1121 and the center of the bottom 110 of the battery sheet loading magazine 100 in the longitudinal direction b of the battery sheet loading magazine.

As an example, the bottom opening 1121 is provided at a central position of the bottom 110 of the battery sheet loading magazine 100.

In this embodiment, the bottom opening 1121 is disposed at the center of the bottom 110, so that when the jacking mechanism contacts the battery piece, the battery piece is stressed more uniformly and is not easy to break.

It can be understood that, in order to fix the battery piece better, the arrangement mode of the limiting member 121 may be designed.

As an example, in the length direction b of the battery sheet loading box, the limiting members 121 positioned at the inner sides of the two short plates 123 are arranged two by two symmetrically; the stoppers 121 located on the inner sides of the two long plates 122 are arranged in a pairwise symmetry manner in the width direction c of the battery sheet loading magazine.

In this embodiment, the contact positions of the long sides and the short sides of the battery pieces, which are opposite to each other, and the limiting part 121 correspond to the contact positions, so that the stress of the battery pieces is more uniform in the descending process, and the battery pieces can be better limited and guided.

It should be noted that, since the long side of the battery piece is larger in size and the short side of the battery piece is smaller in size, the number of the limiting members 121 can be adjusted according to the size of the battery piece in consideration of the fixing effect of the battery piece.

As an example, two limiting members 121 are provided on the inner side of each long plate 122 in the length direction b of the battery sheet loading magazine, and/or one limiting member 121 is provided on the inner side of each short plate 123 in the width direction c of the battery sheet loading magazine.

In this embodiment, since the battery piece has a large dimension in the longitudinal direction b of the battery piece loading box, in this direction, the two stoppers 121 are disposed on the inner wall of the long plate 122, which can better fix the long side of the battery piece; meanwhile, as the size of the battery piece in the length direction b of the battery piece loading box is smaller, the inner wall of the short plate 123 provided with the limiting piece 121 can play a better role in fixing the short side of the battery piece.

On this basis, the arrangement form of the two limiting members 121 on each long plate 122 is not limited, and the two limiting members 121 may be arranged at one end of the long plate 122, may also be arranged at two ends of the long plate 122, and may also be arranged symmetrically along the middle of the long plate 122.

As an example, two stoppers 121 on each long plate 122 are symmetrically disposed along the middle of the long plate 122.

In this embodiment, the limiting members 121 are symmetrically distributed, so that the stress on the battery cells is more uniform.

It should be noted that, during the production process of the production line, the equipment may be in a failure, and in order to ensure the production progress of the battery piece, an operation of manually taking and placing the battery piece is sometimes required. The side wall 120 of the sheet loading magazine 100 may be optimized for ease of manual handling.

Referring to fig. 3, as an example, in the length direction b of the battery sheet loading box, a first groove 1221 is concavely formed on the top end surface of each long plate 122, and the first groove 1221 penetrates through the long plate 122 in the width direction c of the battery sheet loading box.

It should be noted that when the top end surface of each long plate 122 is provided with the first groove 1221, the two stoppers 121 on each long plate 122 are disposed on two sides of the first groove 1221 in the length direction b of the battery sheet loading magazine.

It is understood that the two first grooves 1221 on the two opposite long plates 122 may be symmetrically arranged or staggered in the width direction c of the battery sheet loading magazine.

As an example, in the width direction c of the battery sheet loading magazine, two first grooves 1221 on two opposite long plates 122 are symmetrically arranged.

In this embodiment, the first grooves 1221 are symmetrically arranged, which is more convenient for manual operation.

On this basis, the cross-sectional shape of the second groove 124 in the width direction c of the battery piece loading magazine is not particularly limited, and may be any of a truncated triangle, a truncated square, and a truncated rectangle.

It should be noted that one side surface of the limiting member 121 close to the battery piece may be configured to be in complete contact with the battery piece, or may be configured to be in partial contact with the battery piece.

As an example, a surface of the limiting member 121 away from the sidewall 120 is an arc-shaped surface 1211.

In this embodiment, a surface of the side of the limiting member 121 away from the side wall 120 is provided as an arc-shaped surface 1211, so that the battery sheet is only in contact with a part of the surface of the limiting member 121, and the arc-shaped surface 1211 can make the contact area stressed smoothly and uniformly, thereby better reducing the probability of edge breakage of the battery sheet while exerting the limiting and guiding function of the battery sheet.

Further, in order to provide a certain distance between the battery pieces and the side wall 120 and prevent the battery pieces from being scraped when the battery pieces are taken and placed, the size of the limiting member 121 can be optimized.

As an example, the distance from the top of the arc-shaped surface 1211 to the side wall 120 in the width direction c of the battery piece loading box is 0.75-1.25 mm, such as but not limited to any one or a range of values between 0.75mm, 1.0mm and 1.25 mm.

The inventor also researches and discovers that plastic is mostly adopted as a box body material used by the battery piece loading box 100 in the current battery piece blanking process, and the box body material has the problems of low strength, no corrosion resistance, easy generation of static electricity, influence on battery piece blanking and the like.

It is understood that the material of the sheet loading magazine 100 may be optimized in consideration of the improvement in the usability thereof and the influence of static electricity on the sheets.

As an example, the battery sheet loading magazine 100 is a box made of aluminum-plastic plate.

Here, the bottom plate 1111 and the plurality of side walls 120 of the battery sheet loading magazine 100 are all made of aluminum-plastic plate.

In this embodiment, the material of the battery piece loading box 100 is an aluminum-plastic plate, which has the advantages of high strength, corrosion resistance, easy processing and forming, and partial improvement of the influence of static electricity on the battery pieces.

The inventors have further studied and found that the problem of uneven blanking of the battery piece due to static electricity is solved only by using the aluminum-plastic plate material, and the effect is relatively limited, and the inner side of the side wall 120 may be modified to further improve the influence of static electricity on the battery piece.

As an example, the inside of at least one sidewall 120 is coated with an antistatic coating.

In this embodiment, the antistatic coating is applied to the inner side of the sidewall 120, so that the influence of static electricity on the cell during the discharging process can be further improved, and the uneven discharging phenomenon of the cell caused by static electricity can be further improved.

It should be noted that the antistatic coating may be applied to the inside of one of the sidewalls 120, or may be applied thereto; the inner sides of the two side walls 120 are coated with the antistatic coatings, and the inner sides of the three side walls 120 can also be coated with the antistatic coatings, which can be understood as long as the uneven blanking of the battery piece caused by static electricity can be improved.

As an example, the three sidewalls 120 are coated with an antistatic coating on the inner sides thereof.

In this embodiment, the antistatic coatings are coated on the inner sides of the three side walls 120, so that the uneven blanking of the battery piece caused by static electricity can be improved to the greatest extent.

It will be appreciated that the type of material of the antistatic coating can be selected according to the requirements known in the art.

As an example, the material of the antistatic coating is polyurethane.

On the basis, the inventor also finds that the long sides of the battery pieces are easily scratched to cause edge breakage or cracking during transportation, and the arrangement of the side wall 120 can be optimized in consideration of the quality of the battery pieces.

As an example, in the battery sheet loading magazine 100, any two adjacent side walls 120 are fixedly connected to each other.

In this embodiment, any two adjacent side walls 120 are fixedly connected, and this arrangement makes the overall structural stability of the battery sheet loading box 100 good; the periphery of the battery piece loading box 100 is sealed, so that the long edges of the battery pieces can be prevented from being scratched outside, and the battery pieces are protected.

It should be noted that, in order to prevent the problem of corner chipping of the battery piece, the connecting structure of the side wall 120 may also be optimized.

As an example, in the height direction a of the battery piece loading box, the boundary position of any two adjacent side walls 120 is opened with a second groove 124 in the direction away from the internal cavity 130, and the second groove 124 extends from the upper surface of the bottom plate 1111 to the top of the side wall 120.

In this embodiment, the second groove 124 is disposed at the boundary position of any two adjacent side walls 120, and the second groove 124 is limited to extend from the upper surface of the bottom plate 1111 to the top of the side wall 120, so as to prevent four corners of the battery piece from contacting four corners of the battery piece loading magazine 100, thereby avoiding the phenomenon of corner missing of the battery piece.

It is to be understood that the cross-sectional shape of the second groove 124 in the height direction a of the battery sheet loading magazine is not limited and may be any of a triangular shape, a square shape, a rectangular shape, a circular shape, and an oval shape with missing corners.

As an example, the cross-sectional shape of the second groove 124 in the height direction a of the battery sheet loading magazine is not limited, and may be a rounded shape with a missing corner.

The inventor further researches and discovers that the bottom plate 1111 of the battery piece loading box 100 is generally hard, so that the impact force generated when the first battery piece contacts with the bottom plate 1111 cannot be effectively relieved, and the problem of hidden cracking or even direct cracking of the battery piece is easily caused.

It should be noted that, in order to reduce the impact of the bottom plate 1111 on the first battery piece, the bottom structure of the battery piece loading box 100 may be modified.

Referring to fig. 4, as an example, the battery sheet loading magazine 100 further includes a buffer plate 140, and the buffer plate 140 is disposed on an upper surface of the bottom plate 1111.

In this embodiment, the buffer plate 140 is arranged to reduce the impact force of the bottom plate 1111 on the first cell during the process of discharging the first cell, so as to avoid the problem of splitting.

It should be noted that the connection manner of the buffer plate 140 and the bottom plate 1111 is not limited, and may be configured in a conventional connection manner.

As an example, the buffer plate 140 and the bottom plate 1111 are bonded together.

It is understood that the specific material of the buffer plate 140 is not limited, as long as the buffer plate can play a role in buffering and protecting the battery piece.

As an example, the material of the buffer plate 140 is plexiglas.

On this basis, the size of the buffer plate 140 can be optimized to further improve the buffering effect.

As an example, the thickness of the buffer plate 140 is 4-6 mm, such as but not limited to any one or a range between any two of 4mm, 5mm and 6 mm; the length of the buffer plate 140 is 28-32 mm, such as but not limited to any one or any range of values between 28mm, 29mm, 30mm, 31mm and 32 mm.

It should be noted that in the process of blanking the battery pieces, a plurality of battery piece loading cassettes 100 are often used at the same time, and the structure of the battery piece loading cassette 100 can be further optimized in consideration of the convenience of the process.

As an example, in the height direction a of the battery sheet loading magazine, both ends of the bottom 110 of the battery sheet loading magazine 100 are provided with positioning holes 150 that penetrate through both the bottom plate 1111 and the buffer plate 140.

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

Claims (10)

1. A battery piece loading box is characterized in that,

the bottom of the battery piece loading box comprises a first area and a second area, the first area is provided with a bottom plate, and the bottom plate is positioned on the inner side of the plurality of side walls of the battery piece loading box and is connected with at least one side wall;

the second area is provided with a bottom opening communicated with the inner cavity of the battery piece loading material box;

the inner side of each side wall of the battery piece loading box is provided with a limiting part, and the limiting parts extend from the upper surface of the bottom plate to the tops of the side walls.

2. The battery piece loading magazine as claimed in claim 1, wherein the plurality of side walls include two long plates and two short plates which are oppositely arranged, and the position-limiting members located at the inner sides of the two short plates are arranged in a pairwise symmetry manner in the length direction of the battery piece loading magazine; the limiting pieces positioned on the inner sides of the two long plates are arranged in a pairwise symmetry manner in the width direction of the battery piece loading material box.

3. The battery piece loading magazine as claimed in claim 2, wherein two of the retaining members are provided on the inner side of each long plate in the length direction of the battery piece loading magazine, and the two retaining members are symmetrically provided along the middle of the long plate;

and/or one limiting piece is arranged on the inner side of each short plate in the width direction of the battery piece loading box.

4. The battery piece loading magazine as recited in any one of claims 1 to 3, wherein the plurality of side walls comprise two oppositely disposed elongated plates; in the length direction of the battery piece loading material box, a first groove is concavely arranged on the top end face of each long plate, and the first grooves penetrate through the long plates in the width direction of the battery piece loading material box.

5. The battery piece loading box according to any one of claims 1-3, wherein the surface of the limiting member on the side away from the side wall is an arc-shaped surface.

6. The battery piece loading box according to any one of claims 1 to 3, wherein the battery piece loading box is a box made of an aluminum-plastic plate.

7. The battery piece loading magazine of any one of claims 1-3, wherein the inside of at least one of the side walls is coated with an antistatic coating.

8. The battery piece loading box according to any one of claims 1 to 3, wherein any two adjacent side walls of the battery piece loading box are fixedly connected.

9. The cassette of claim 8, wherein in the height direction of the cassette, a second groove is formed at the junction of any two adjacent side walls in the direction away from the inner cavity, and the second groove extends from the upper surface of the bottom plate to the top of the side walls.

10. The battery piece loading magazine of claim 1, further comprising a buffer plate disposed on an upper surface of the base plate.

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