CN217477826U

CN217477826U - Laminated battery cell tray

Info

Publication number: CN217477826U
Application number: CN202221425504.4U
Authority: CN
Inventors: 温春香
Original assignee: Dongguan Liande Enterprise Management Co ltd
Current assignee: Guangdong Kaileshijia Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-09-23
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a laminated cell tray, which relates to the technical field of laminated cell production equipment and comprises a tray base, wherein the surface of the tray base is provided with at least one laminated area; and two groups of pole piece pressing devices are respectively arranged on two sides of each lamination area and are used for pressing the pole pieces on the lamination areas. According to the utility model discloses a lamination electricity core tray, the tray base can advance along with the transportation area of production line, and the diaphragm lays on the tray base, and the pole piece piles up the lamination regional, accomplishes the back when the lamination, through removing lamination electricity core tray to next station processing, once only can remove a plurality of shaping laminations, promotes production efficiency. And pole piece closing device can compress tightly the pole piece that the mistake was piled up in the lamination region, prevents that the pole piece from piling up the skew, promotes production line and piles up speed. The positive pole pressing knife and the negative pole pressing knife can respectively press the pole pieces of the corresponding types, cross contamination between the pole pieces is avoided, and the lamination yield is improved.

Description

Laminated battery cell tray

Technical Field

The utility model relates to a lamination electricity core production facility technical field, in particular to lamination electricity core tray.

Background

With the rapid development of new energy, the size of the battery core is also continuously increased, and the demand of each enterprise on the power battery is increased day by day, and the demand is far greater than the capacity. Under the promotion of national policies, enterprises of new energy resources have hundreds of flowers, and along with the rising of automobile output, the demand of a matched power battery core group is exponentially multiplied, so that the efficiency of the conventional battery core production equipment is difficult to meet the requirements of the existing market.

In the production process of lithium batteries, hydrogen batteries and solar batteries, a laminating machine is required to stack and form pole pieces and diaphragms, and then follow-up procedures are carried out. The stacking of pole piece is followed in the lamination process to current lamination equipment, and its focus shifts up, and the electric core group removes and leads to the pole piece to rock and offset to next station in-process easily, and the production line speed will be controlled in certain extent, can't effectively promote production efficiency. And moving the diaphragm on the production line, it is inconvenient for the formed laminate to be transferred from the production line to the next process step. And the pole piece is easy to have the condition of cross contamination of the anode and cathode materials in the lamination pressing process, so that the yield is reduced, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving at least "production line speed that exists among the prior art and controlling at the certain limit, inconvenient lamination shifts to next manufacturing procedure from the production line to and the lamination compresses tightly the condition that positive negative pole material cross contamination appears in the in-process easily, reduces the yields, influences the technical problem of production efficiency". Therefore, the utility model provides a lamination electricity core tray can bear the diaphragm and remove on the production line, and the lamination process effectively compresses tightly each pole piece, promotes the production efficiency of lamination to can avoid pole piece skew and pole piece material cross contamination, promote the lamination yields.

According to the utility model discloses a lamination electricity core tray of some embodiments, include:

the tray comprises a tray base, wherein at least one lamination area is arranged on the surface of the tray base;

the two sides of each lamination area are respectively provided with two groups of pole piece compressing devices which are used for compressing the pole pieces on the lamination areas;

the pole piece compressing device comprises a knife pressing piece and a driving mechanism, the knife pressing piece comprises a positive pole knife pressing and a negative pole knife pressing, and the driving mechanism is used for driving the positive pole knife pressing and the negative pole knife pressing to alternately compress the pole pieces on the lamination area.

According to some embodiments of the present invention, the included angle between the positive electrode pressing blade and the negative electrode pressing blade is 90 ° or 180 °.

According to some embodiments of the present invention, the positive electrode pressing blade and the negative electrode pressing blade are smoothly arranged at the ends.

According to the utility model discloses a some embodiments, the tray base corresponds the regional both sides of lamination are provided with the mounting hole, press the cutter spare pass through the mounting hole install in the regional both sides of lamination.

According to some embodiments of the utility model, anodal pressing tool with the junction extension of negative pole pressing tool is provided with the movable rod, the movable rod in the mounting hole is interior to move about.

According to the utility model discloses a some embodiments, the bottom of movable rod is provided with spacing seat, an elastic component is established to the pole body cover of movable rod, the elastic component is located spacing seat with between the tray base, the elastic component is used for making the pressure sword spare is automatic to be compressed tightly.

According to the utility model discloses a some embodiments, actuating mechanism with the bottom transmission of movable rod is connected, actuating mechanism is used for the drive press the jacking of cutter unit or rotatory certain angle.

According to some embodiments of the present invention, the lamination areas are arranged at equal intervals on the surface of the tray base, each of which is provided with a diaphragm cutting groove between the lamination areas.

According to the utility model discloses a some embodiments, the both sides of tray base are provided with the fluting, two when tray base closely arranges, adjacent two the fluting combination forms diaphragm cut-off groove.

According to some embodiments of the invention, the length of the diaphragm severing groove is not less than the length of the lamination area.

According to the utility model discloses a lamination electricity core tray of some embodiments has following beneficial effect at least: the laminated cell battery tray is characterized in that the tray base can advance along with a conveying belt of a production line, the diaphragm is laid on the tray base, the pole pieces are stacked in the laminating area, and after lamination is completed, a plurality of formed laminations can be moved at one time by moving the laminated cell battery tray to the next station for processing, so that the production efficiency is improved. And the pole piece pressing device can press the pole pieces stacked alternately in the lamination area, so that the pole pieces are prevented from being stacked and deviated, and the stacking speed of a production line is increased. The positive pole pressing knife and the negative pole pressing knife can respectively press the pole pieces of corresponding types, cross contamination between the pole pieces is avoided, and the lamination yield is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of a laminated cell tray according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a top view of a laminated cell tray according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a laminated cell tray according to an embodiment of the present invention;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

fig. 6 is a schematic diagram of a compact arrangement of laminated cell trays according to an embodiment of the present invention;

fig. 7 is an enlarged schematic view of a portion C of fig. 6.

Reference numerals are as follows:

the tray comprises a tray base 100, a lamination area 110, a pole piece pressing device 120, a pressing knife piece 121, a positive pressing knife 121a, a negative pressing knife 121b, a movable rod 122, a limiting seat 123, an elastic piece 124, a mounting hole 130, a diaphragm cutting groove 140 and a slot 141.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, top, bottom, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Laminated cell trays according to embodiments of the present invention are described below with reference to fig. 1-6.

As shown in fig. 1 to fig. 6, the laminated cell tray includes two parts, namely a tray base 100 and a pole piece compressing device 120, the surface of the tray base 100 is provided with at least one lamination area 110, and in this embodiment, the surface of one laminated cell tray is provided with three lamination areas 110, which can simultaneously carry three groups of laminations for batch movement. After the pole piece lamination is accomplished, carry lamination electricity core tray through the manipulator and can once only remove three group's laminations and get into next manufacturing procedure, promoted the production machining efficiency of lamination production line, promote production speed. Specifically, the regional 110 quantity of lamination electricity core tray can be adjusted according to the lamination production line of different specifications, and the regional 110 quantity of lamination can set up two, four or five and so on, should understand, under the prerequisite that does not deviate from the utility model discloses basic concept, the regional 110 quantity of lamination sets up nimble transform, all should regard as within the scope of protection that the utility model defines.

Because the film is thin, the lamination process is not beneficial to the subsequent steps of cutting, heat treatment and the like on the conveyer belt, and the production efficiency is low. And laminated electric core tray can bear pole piece and lamination, makes electric core lamination cutting and forming process all accomplish on the surface of tray base 100, because tray base 100 is the stereoplasm surface, can bear film and pole piece well, and it is also more convenient to cut the film process, effectively promotes lamination production efficiency.

Two sets of pole piece pressing devices 120 are respectively arranged on two sides of each lamination area 110, and the pole piece pressing devices 120 are used for pressing pole pieces on the lamination areas 110. Specifically, the number of the pole piece compressing devices 120 is set corresponding to the lamination area 110, two sets of the pole piece compressing devices 120 are correspondingly set on two sides of each lamination area 110, and each side of the lamination area 110 is compressed by two sets of the pole piece compressing devices 120, that is, one lamination area 110 is set with four sets of the pole piece compressing devices 120. Note that, both sides of the lamination area 110 in the present embodiment refer to both sides of the lamination area 110 extending perpendicular to the moving direction of the production line. In other embodiments, the pole piece pressing device 120 can also set a set of pole piece pressing devices 120 at the middle positions of two sides of the lamination area 110, and the stacked pole pieces and diaphragms are pressed by the sets of pole piece pressing devices 120 at two sides, it should be understood that, without departing from the basic concept of the present invention, the number of the pole piece pressing devices 120 is flexibly changed and should be regarded as being within the protection scope defined by the present invention.

The pole piece pressing device 120 includes a pressing knife element 121 and a driving mechanism (not shown in the drawings), the pressing knife element 121 includes a positive pressing knife 121a and a negative pressing knife 121b, the positive pressing knife 121a is used for pressing the positive lamination and the diaphragm of the lamination area 110, and the negative pressing knife 121b is used for pressing the negative lamination and the diaphragm of the lamination area 110. Specifically, the driving mechanism is used to drive the positive pressure knife 121a and the negative pressure knife 121b to alternately press the pole pieces and the membranes on the lamination area 110. The pressing knife members 121 on both sides of the lamination area 110 act simultaneously, and when the lamination area 110 laminates and stacks the positive pole piece, the driving mechanism of the four-group pole piece pressing device 120 controls the pressing knife members 121 to be switched to the positive pole pressing knife 121a and presses the positive pole piece and the diaphragm on the lamination area 110. When the lamination area 110 is laminated and stacked with the negative pole piece, the driving mechanism of the four-group pole piece pressing device 120 controls the pressing knife piece 121 to be switched to the negative pressing knife 121b and presses the negative pole piece and the diaphragm on the lamination area 110. The pressing knife 121 compresses the pole pieces and the diaphragm in the lamination area 110 by alternately switching the positive pressing knife 121a and the negative pressing knife 121b, so that cross contamination of materials between the positive pole piece and the negative pole piece can be effectively avoided. Due to the fact that the positive pole piece and the negative pole piece are made of different materials, materials of different pole pieces are adhered to the pressing knife through the common pressing knife, and the materials of the different pole pieces are brought to other pole pieces, so that cross contamination of the materials between the two pole pieces is caused, and the yield of the laminated sheet is reduced. The utility model discloses a positive pole tucker 121a and negative pole tucker 121b can realize the operation that compresses tightly of different kinds of pole pieces, have solved pole piece cross contamination's problem.

In some embodiments of the present invention, as shown in fig. 1 to 3, the included angle between the positive pressing blade 121a and the negative pressing blade 121b is 90 ° or 180 °. In this embodiment, an included angle between the positive electrode pressing blade 121a and the negative electrode pressing blade 121b is 90 °, when it is turned that the positive electrode pressing blade 121a presses the positive electrode tab, the driving mechanism drives the pressing blade 121 to rotate by 90 °, so that the positive electrode pressing blade 121a is located above the positive electrode tab, and when it is turned that the negative electrode pressing blade 121b presses the negative electrode tab, the driving mechanism drives the pressing blade to rotate by 90 ° in the reverse direction, so that the negative electrode pressing blade 121b is located above the negative electrode tab.

When the included angle between the positive pole pressing blade 121a and the negative pole pressing blade 121b is 180 °, the driving mechanism rotates the pressing blade 121 at an angle of 180 ° each time.

It should be understood that the included angle between the positive pressure knife 121a and the negative pressure knife 121b is 90 ° or 180 ° is not the only implementation manner, and in some other embodiments, an angle between the included angle between the positive pressure knife 121a and the negative pressure knife 121b is 90 ° to 180 ° may also be adopted according to actual production requirements, so as to prevent another pressure knife from touching the pole piece when the pressure knife performs the pressing step. The utility model discloses contained angle number of degrees to anodal tucking tool 121a and negative pole tucking tool 121b is not different to be repeated, should understand, does not deviate from the utility model discloses under the prerequisite of basic concept, anodal tucking tool 121a and negative pole tucking tool 121 b's the nimble transform of contained angle number of degrees all should be regarded as within the utility model discloses within the scope of protection injectd.

In some embodiments of the present invention, as shown in fig. 2, the ends of the positive pressing blade 121a and the negative pressing blade 121b are smoothly arranged. The terminal damage surface of pole piece that can prevent the pressure sword, pressure sword and pole piece surface contact are more level and smooth.

In some embodiments of the present invention, as shown in fig. 2, the tray base 100 is provided with mounting holes 130 on two sides corresponding to the lamination area 110, and the knife pressing members 121 are mounted on two sides of the lamination area 110 through the mounting holes 130. Specifically, the mounting holes 130 are located on both sides of the lamination area 110, and the mounting holes 130 distributed on the same side are spaced apart by a certain distance to ensure that the two pole piece pressing devices 120 on the same side do not interfere with each other.

In some embodiments of the present invention, as shown in fig. 2, 4 and 5, the movable rod 122 extends from the connection portion of the positive pressing blade 121a and the negative pressing blade 121b, and the movable rod 122 moves up and down in the mounting hole 130. Specifically, the movable rod 122 extends perpendicularly to the tool surfaces of the two pressing knives, the diameter of the movable rod 122 is not greater than that of the mounting hole 130, and the movable rod 122 penetrates through the mounting hole 130 and can drive the pressing knife 121 to move up and down along the extending direction of the mounting hole 130. When the movable lever 122 moves upward, the pressing blade 121 moves away from the surface of the pole piece, and when the movable lever 122 rotates, the pressing blade 121 switches the position of the positive or negative pole blade.

In some embodiments of the present invention, as shown in fig. 2 and fig. 5, the bottom of the movable rod 122 is provided with a limiting seat 123, an elastic member 124 is sleeved on the rod body of the movable rod 122, the elastic member 124 is located between the limiting seat 123 and the tray base 100, the elastic member 124 is used for automatically compressing the knife pressing member 121, and in this embodiment, the elastic member 124 is a spring. Specifically, the limiting seat 123 is connected to the bottom of the movable rod 122, the diameter of the limiting seat 123 is larger than that of the movable rod 122, and the elastic member 124 is located between the bottom of the tray base 100 and the limiting seat 123. The elastic member 124 is always in a tensioned state, so that the pole piece compressing device 120 can automatically compress the pole piece, and when the external force of the driving mechanism on the movable rod 122 is removed, the elastic member 124 drives the pressing knife 121 to automatically press down so as to compress the pole piece in the lamination area 110. The driving mechanism pushes the movable rod 122 to ascend, so that the elastic member 124 compresses and moves the pressing blade 121 away from the surface of the pole piece to switch the positive pressing blade 121a or the negative pressing blade 121 b.

In some embodiments of the present invention, the driving mechanism is connected to the bottom of the movable rod 122 in a transmission manner, and the driving mechanism is used for driving the knife pressing member 121 to lift or rotate by a certain angle. In this embodiment, the driving mechanism uses a motor or a push rod to drive the knife pressing element 121 to lift or rotate to switch the positive and negative knife pressing elements 121 b. Specifically, a micro push rod may be used to push the movable rod 122 to ascend and descend, and the motor drives the micro push rod to rotate by a certain angle so as to drive the knife pressing element 121 to rotate by a certain angle. The utility model discloses specific structure to actuating mechanism differs a perk, should understand, does not deviate from the utility model discloses under the prerequisite of basic concept, actuating mechanism's specific structure is nimble to be changeed, all should be regarded as being in the utility model discloses within the scope of protection of injecing.

In some embodiments of the present invention, as shown in fig. 4, 6 and 7, the lamination areas 110 are arranged on the surface of the tray base 100 at equal intervals, a diaphragm cutting groove 140 is disposed between each lamination area 110, the diaphragm cutting groove 140 is convenient for the diaphragm cutting mechanism to accurately cut the diaphragm into the same length, and the bobber neon diaphragm cutting mechanism is aligned. Specifically, when the number of the surface lamination areas 110 of the tray base 100 is more than one, the arrangement intervals of the lamination areas 110 are equal, so that the equipment can position the lamination areas 110 in the lamination process conveniently, the pole pieces can be stacked, the length of the diaphragm between each group of laminations can be equal, and the lamination quality can be improved.

In some embodiments of the present invention, as shown in fig. 3 and 7, the connection points of the two tray bases 100 are respectively provided with a slot 141, when the two adjacent laminated cell trays are closely arranged and attached, the two adjacent slots 141 are combined to form a cutting slot, so that the diaphragm cutting mechanism can cut the diaphragm between the two laminated cell trays.

Specifically, the cutting groove is a groove formed by the downward depression of the surface of the tray base 100, and after the lamination is completed, the diaphragm cutting mechanism of the device performs cutting operation in alignment with the cutting groove, so that the diaphragm between each group of laminations is cut, and the subsequent molding step is facilitated.

In a further embodiment, the length of the diaphragm cut groove 140 is not less than the length of the lamination region 110. Preventing the diaphragm between the two laminated cells from not being completely cut.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A laminated cell tray, comprising:

a tray base (100), a surface of the tray base (100) being provided with at least one lamination area (110);

the two sides of each lamination area (110) are respectively provided with two groups of pole piece pressing devices (120), and the pole piece pressing devices (120) are used for pressing pole pieces on the lamination areas (110);

the pole piece pressing device (120) comprises a pressing knife piece (121) and a driving mechanism, wherein the pressing knife piece (121) comprises a positive pressing knife (121a) and a negative pressing knife (121b), and the driving mechanism is used for driving the positive pressing knife (121a) and the negative pressing knife (121b) to alternately press the pole pieces on the lamination area (110).

2. The laminated cell tray of claim 1, wherein the included angle between the positive press blade (121a) and the negative press blade (121b) is 90 ° or 180 °.

3. The laminated cell tray of claim 2, wherein the ends of the positive pressure knives (121a) and the negative pressure knives (121b) are rounded.

4. The laminated cell tray of claim 1, wherein the tray base (100) is provided with mounting holes (130) corresponding to two sides of the laminated region (110), and the knife pressing piece (121) is mounted on two sides of the laminated region (110) through the mounting holes (130).

5. The laminated cell tray as claimed in claim 4, wherein a movable rod (122) extends from a joint of the positive pressing blade (121a) and the negative pressing blade (121b), and the movable rod (122) moves up and down in the mounting hole (130).

6. The laminated cell tray as claimed in claim 5, wherein a limiting seat (123) is provided at the bottom of the movable rod (122), an elastic member (124) is sleeved on the body of the movable rod (122), the elastic member (124) is located between the limiting seat (123) and the tray base (100), and the elastic member (124) is used for automatically compressing the knife pressing member (121).

7. The laminated cell tray as claimed in claim 5, wherein the driving mechanism is in transmission connection with the bottom of the movable rod (122), and is used for driving the knife pressing piece (121) to lift or rotate for a certain angle.

8. The laminated cell tray of any of claims 1 to 7, wherein the lamination regions (110) are arranged at equal intervals on the surface of the tray base (100), and a membrane cutting groove (140) is provided between each lamination region (110).

9. The laminated cell tray of claim 8, wherein the tray bases (100) are provided with slots (141) on both sides, and when two tray bases (100) are closely arranged, two adjacent slots (141) combine to form the separator cutting slot (140).

10. The laminated cell tray of claim 8, wherein the length of the diaphragm cut groove (140) is not less than the length of the laminated region (110).