CN218012124U

CN218012124U - Stirring dispersion impeller and lithium battery slurry stirring device comprising same

Info

Publication number: CN218012124U
Application number: CN202221928323.3U
Authority: CN
Inventors: 曹宇
Original assignee: Weilai Automobile Technology Anhui Co Ltd
Current assignee: Weilai Automobile Technology Anhui Co Ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-13
Anticipated expiration: 2032-07-21

Abstract

The utility model provides a stirring dispersion impeller and lithium battery slurry agitating unit including it, wherein, stirring dispersion impeller includes: the dispersion disc comprises a dispersion disc body of a rotating body structure, wherein a shaft penetrating through hole for a rotating shaft to penetrate through is formed in the dispersion disc body, and is positioned in the center of the dispersion disc body and arranged along the axial direction of the dispersion disc body; the dispersion disc body comprises a first end face and a second end face which are arranged oppositely, and the diameter of the second end face is larger than that of the first end face. According to the utility model discloses a set up the dispersion impeller body into revolution solid structure, and the diameter of two terminal surfaces of this revolution solid structure is different for the revolution solid structure generating line is in the tilt state, has avoided stirring in-process thick liquids to remain and has leaded to the uneven condition of thick liquids dispersion on the dispersion impeller surface, and then has solved the not good problem of lithium cell performance because of the uneven leading to of thick liquids.

Description

Stirring dispersion impeller and lithium battery slurry stirring device comprising same

Technical Field

The utility model belongs to the technical field of the battery manufacture, concretely relates to stirring dispersion impeller and lithium battery slurry agitating unit including it.

Background

In the production and manufacturing process of the lithium battery, the stirring of the slurry is an essential link, and the performance of the lithium battery is directly influenced by the stirring effect of the slurry. When the lithium battery slurry is stirred, the slurry is sheared by a dispersion disc, and the slurry is uniformly dispersed; traditional dispersion impeller mid portion is parallel with the horizontal plane for partial thick liquids can be stayed on the dispersion impeller surface, and this partial thick liquids are because of not receiving the effect of the shearing force of dispersion impeller, lead to the dispersion effect of thick liquids unsatisfactory, bring a great deal of problem to coating process in the back.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a stirring dispersion impeller and lithium battery slurry agitating unit including it are provided to solve the dispersion impeller surface and stay the thick liquids and lead to its dispersion homogeneity poor, and influence the problem of lithium cell performance.

In order to solve or improve above-mentioned technical problem to a certain extent, according to the utility model discloses an aspect provides a stirring dispersion impeller, includes: the dispersion disc comprises a dispersion disc body with a rotating body structure, wherein a shaft penetrating through hole for a rotating shaft to penetrate through is formed in the dispersion disc body, is positioned in the center of the dispersion disc body and is arranged along the axial direction of the dispersion disc body; the dispersion disc body comprises a first end face and a second end face which are arranged oppositely, and the diameter of the second end face is larger than that of the first end face.

In some embodiments, the dispersion impeller body is of a circular truncated cone structure, and an included angle between a generatrix of the dispersion impeller body and the horizontal plane is 30-45 °.

In some embodiments, the generatrix of the distributor disc body is at an angle of 30 ° to the horizontal plane.

In some embodiments, the dispersion disc body has a curved generatrix.

In some embodiments, the stirring dispersion tray further comprises a plurality of teeth, which are connected to the stirring dispersion tray body.

In some embodiments, the number of the dispersion disk body is one, and the plurality of teeth are connected to a periphery of the second end face of the dispersion disk body.

In some embodiments, there are two dispersion plate bodies, and the second end faces of the two dispersion plate bodies are connected; the plurality of tooth plates are connected to the periphery of the joint of the second end faces of the two dispersion disk bodies.

In some embodiments, a plurality of the teeth are perpendicular to a radial direction of the second end face, and both ends of the plurality of the teeth extend in an axial direction of the dispersion tray body; or alternatively

A plurality of the teeth piece includes along the last tooth piece of the axial of dispenser tray body upwards buckling and along the lower tooth piece of the axial of dispenser tray body downwards buckling, just go up the tooth piece with go up the tooth piece interval setting.

In some embodiments, the diameter of the first end face of the dispersion disc body is equal to the diameter of the shaft passing through hole.

According to another aspect of the present invention, there is provided a lithium battery slurry stirring apparatus, comprising a rotating shaft and at least one stirring dispersion plate according to any one of the above embodiments;

the rotating shaft penetrates through the shaft penetrating through hole of the dispersion disc body to drive the stirring dispersion disc to rotate.

The utility model provides a pair of stirring dispersion impeller and lithium battery slurry agitating unit including it through setting up the dispersion impeller into revolution solid structure, and the diameter of two terminal surfaces of this revolution solid structure is different for the revolution solid structure generating line is in the tilt state, has avoided stirring in-process thick liquids to remain and has leaded to the uneven condition of thick liquids dispersion on the dispersion impeller surface, and then has solved the not good problem of lithium cell performance because of the uneven leading to of thick liquids.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are specifically illustrated below, and the detailed description is given in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a schematic front view of a dispersion board body according to a first embodiment of the present invention;

fig. 2 is a schematic front view of a dispersion tray body according to a second embodiment of the present invention;

fig. 3 is a schematic front view of a dispersion board body according to a third embodiment of the present invention;

fig. 4 is a schematic top view of a stirring dispersion plate according to an embodiment of the present invention;

fig. 5 is a schematic top view of the stirring dispersion plate according to the first embodiment of the present invention;

fig. 6 is a schematic top view of a stirring dispersion plate according to a second embodiment of the present invention;

fig. 7 is a schematic top view of a stirring dispersion plate according to a third embodiment of the present invention.

[ description of symbols ]

1. Dispersion disk body

11. First end face

12. Second end face

13. Bus bar

2. Shaft through hole

3. Tooth sheet

31. Upper tooth sheet

32. Lower tooth sheet

4. Horizontal plane

Phi, angle of inclination

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objectives of the present invention, the following detailed description will be given with reference to the accompanying drawings and preferred embodiments of the present invention for a specific embodiment and effects of a stirring dispersion plate and a lithium battery slurry stirring apparatus including the same according to the present invention.

Referring to fig. 1 to 4 in combination, according to the embodiment of the present invention, a stirring dispersion plate is provided, which includes a dispersion plate body 1, and the dispersion plate body 1 is a rotator structure. Be provided with on the dispenser tray body 1 and supply the rotation axis to wear to establish wear a through-hole 2, should wear a through-hole 2 and be located dispenser tray body 1's center, and follow dispenser tray body 1's axial setting. The dispersion tray body 1 includes a first end surface 11 and a second end surface 12 which are oppositely arranged, and the diameter of the second end surface 12 is larger than that of the first end surface 11.

In this embodiment, the dispersion board body 1 is provided as a rotary structure, and the first end surface 11 and the second end surface 12 of the rotary structure, which are provided opposite to the dispersion board body 1, have different diameters. In particular, the diameter of the second end face 12 is larger than the diameter of the first end face 11, so that the generatrix 13 of the rotator structure connecting the first end face 11 and the second end face 12 is in an inclined state, i.e. the generatrix 13 has an angle of less than 90 ° with the horizontal plane 4.

The utility model discloses a set up the terminal surface of the dispersion impeller body 1 of revolution solid structure into different diameters for its generating line 13 is in the tilt state, makes thick liquids can flow down along the side of the slope of dispersion impeller body 1, has solved the adhesion on dispersion impeller body 1 at stirring in-process thick liquids, leads to the uneven problem of thick liquids dispersion.

In this embodiment, as shown in fig. 4, the shaft penetrating hole 2 is disposed in the center of the dispersion impeller body 1 and is disposed along the axial direction of the dispersion impeller body 1, that is, the shaft penetrating hole 2 is disposed at the axis of the dispersion impeller body 1 and penetrates through the first end surface 11 and the second end surface 12 of the dispersion impeller body 1, so that the rotating shaft of the lithium battery slurry stirring apparatus can penetrate through the dispersion impeller body 1 to drive the dispersion impeller body 1 to rotate.

In an embodiment, the diameter of the first end surface 11 of the dispersion impeller body 1 is the same as the diameter of the shaft through hole 2, so that after the dispersion impeller body 1 is installed on the rotating shaft, a platform is not formed at the first end surface 11, and the condition that slurry is adhered to the first end surface 11 is avoided.

In an embodiment, as shown in fig. 1, the generatrix 13 of the dispersion board body 1 of the rotating body structure is a straight line, that is, the dispersion board body 1 is a circular truncated cone structure. An included angle phi exists between a bus 13 of the dispersion disc body 1 of the circular truncated cone structure and the horizontal plane 4, and the included angle phi is 30-45 degrees. For example, the angle φ may be 30 °, 40 °, 45 °, or the like.

Be prescribed a limit to 30 ~ 45 through the contained angle phi with this round platform structure for the side of the dispersion impeller body 1 of round platform structure is in the tilt state, and at the stirring in-process, the circumstances of thick liquids adhesion then can not appear in the side of dispersion impeller body 1, and then makes the thick liquids dispersion more even.

Preferably, the included angle phi between the generatrix 13 of the dispersion impeller body 1 of the circular truncated cone structure and the horizontal plane 4 is 30 degrees.

In another embodiment, as shown in fig. 2 and 3, the generatrix 13 of the dispersion impeller body 1 of the rotor structure is curved.

Specifically, as shown in fig. 2, the generatrix 13 of the dispersion impeller body 1 of the rotary body structure is a curved line that is depressed toward the inside of the dispersion impeller body 1, that is, the generatrix 13 of the dispersion impeller body 1 is depressed toward the axis of the dispersion impeller body 1.

As shown in fig. 3, the generatrix 13 of the dispersion impeller body 1 of the rotor structure is a curved line that protrudes toward the outside of the dispersion impeller body 1, that is, the generatrix 13 of the dispersion impeller body 1 protrudes in a direction away from the axis of the dispersion impeller body 1.

Of course, the above description of the form of the curve is only two specific embodiments of the present invention, and is not intended to limit the form of the curve. Any curve form that can realize that the side of dispersion impeller body 1 can not remain the thick liquid all should belong to the utility model discloses the scope of protecting.

In one embodiment, as shown in fig. 5 to 7, the stirring and dispersing plate further includes a plurality of teeth 3, and the plurality of teeth 3 are connected to the stirring and dispersing plate body 1. Through the setting of a plurality of teeth 3, can provide the shearing force at the rotatory in-process of stirring dispersion impeller for the dispersion of thick liquids is more even, has improved the efficiency of carrying out the dispersion to thick liquids simultaneously.

In a specific embodiment, as shown in fig. 5, the number of the distributor body 1 is one, and a plurality of blades 3 are connected to the periphery of the second end face 12 of the distributor body 1. That is, a plurality of blades 3 are connected to the periphery of the end face of the dispersion board body 1 having a larger circumference, so that more blades 3 can be arranged to improve the efficiency of dispersion of the slurry.

Preferably, a plurality of blades 3 are connected to the periphery of the second end face 12 of the dispersion tray body 1 at regular intervals.

In another embodiment, as shown in fig. 6 and 7, the number of the dispersion board bodies 1 is two, and the second end faces 12 of the two dispersion board bodies 1 are connected, so that the situation that slurry under the second end faces 12 of the dispersion board bodies 1 is adhered to the second end faces 12 to cause uneven dispersion of the slurry can be avoided.

In this embodiment, a plurality of blades 3 are connected to the periphery of the junction of the second end faces 12 of the two dispersion impeller bodies 1. Preferably, a plurality of teeth 3 are connected to the periphery of the junction of the second end face 12 of the distributor block body 1 at regular intervals.

In an embodiment, as shown in fig. 5 and 6, the plurality of teeth 3 are perpendicular to the radial direction of the second end face 12 of the dispersion impeller body 1, and both ends of the plurality of teeth 3 extend in the axial direction of the dispersion impeller body 1.

In another embodiment, as shown in fig. 7, the plurality of teeth 3 includes an upper tooth 31 and a lower tooth 32, and the upper tooth 31 and the lower tooth 32 are spaced apart from each other. Wherein the upper teeth 31 are bent upward along the axial direction of the dispersion impeller body 1, and the lower teeth 32 are bent downward along the axial direction of the dispersion impeller body 1.

The upper tooth piece 31 and the lower tooth piece 32 of the utility model bend towards opposite directions.

The upward and downward directions in this embodiment are described with reference to the orientation in the drawings, and are not intended to limit the scope of the present invention, and the positions of the upper teeth 31 and the lower teeth 32 are interchanged after the stirring dispersion plate is rotated by 180 °.

According to the utility model discloses an embodiment still provides a lithium cell thick liquids agitating unit, including the stirring dispersion impeller of rotation axis and above-mentioned arbitrary embodiment.

The rotation shaft passes through the shaft passing through hole 2 of the dispersion impeller body 1 to drive the stirring dispersion impeller to rotate.

The utility model discloses a set up the dispersion impeller into revolution solid structure, and the diameter of two terminal surfaces of this revolution solid structure is different for the revolution solid structure generating line is in the tilt state, has avoided stirring in-process thick liquids to remain and has leaded to the uneven condition of thick liquids dispersion on the dispersion impeller surface, and then has solved the not good problem of lithium cell performance because of the uneven leading to of thick liquids.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.

Claims

1. An agitation dispersion plate, comprising: the dispersion disc comprises a dispersion disc body of a rotating body structure, wherein a shaft penetrating through hole for a rotating shaft to penetrate through is formed in the dispersion disc body, and is positioned in the center of the dispersion disc body and arranged along the axial direction of the dispersion disc body; the dispersion disc body comprises a first end face and a second end face which are arranged oppositely, and the diameter of the second end face is larger than that of the first end face.

2. The stirring dispersion impeller of claim 1, wherein the dispersion impeller body is of a circular truncated cone structure, and an included angle between a generatrix of the dispersion impeller body and the horizontal plane is 30-45 °.

3. The stirring dispersion impeller of claim 2, wherein the generatrix of the dispersion impeller body is at an angle of 30 ° to the horizontal plane.

4. The stirring dispersion impeller of claim 1, wherein a generatrix of the dispersion impeller body is a curved line.

5. The stirring dispersion impeller according to any one of claims 1 to 4, wherein the stirring dispersion impeller further includes a plurality of teeth, and a plurality of the teeth are attached to the stirring dispersion impeller body.

6. The stirring dispersion impeller of claim 5, wherein the dispersion impeller body is one, and the plurality of teeth pieces are connected to a periphery of the second end face of the dispersion impeller body.

7. The stirring dispersion impeller of claim 5, wherein there are two dispersion impeller bodies, and the second end faces of the two dispersion impeller bodies are connected; the plurality of tooth plates are connected to the periphery of the joint of the second end faces of the two dispersion disk bodies.

8. The stirring dispersion impeller of claim 5, wherein a plurality of the teeth are perpendicular to a radial direction of the second end face, and both ends of the plurality of the teeth extend in an axial direction of the dispersion impeller body; or

9. The stirring dispersion impeller of claim 1, wherein a diameter of the first end surface of the dispersion impeller body is equal to a diameter of the shaft passing through hole.

10. A lithium battery slurry stirring apparatus comprising a rotating shaft and at least one stirring dispersion impeller according to any one of claims 1 to 9;