CN115190666A

CN115190666A - Heating device

Info

Publication number: CN115190666A
Application number: CN202210842387.XA
Authority: CN
Inventors: 熊建敏; 孟庆洋; 邹海天
Original assignee: Shenzhen Hymson Laser Intelligent Equipment Co Ltd
Current assignee: Shenzhen Hymson Laser Intelligent Equipment Co Ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-10-14

Abstract

The invention discloses a heating device, which is used for heating a pole piece and comprises: the roller is used for winding the pole pieces so as to form a first gap between the pole pieces on two sides of the roller; and the coil is arranged in the first gap and used for heating the pole pieces on two sides. The heating device can reduce the number of coils so as to save cost.

Description

Heating device

Technical Field

The invention relates to the field of battery pole piece processing, in particular to a heating device.

Background

In the processing procedure of the pole piece, the pole piece can be heated and baked to remove moisture and solvent in the pole piece and ensure that the pole piece is dry so as to enter the next processing procedure. In the related art, because the pole pieces are manufactured in a large scale, a large amount of equipment is required for heating the pole pieces, and thus, the problem of high cost is caused.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a heating device which can reduce the number of coils so as to save cost.

A heating device according to an embodiment of the present invention includes: the roller is used for winding the pole pieces so as to form a first gap between the pole pieces on two sides of the roller; and the coil is arranged in the first gap and used for heating the pole pieces on two sides.

The heating device provided by the embodiment of the invention has at least the following beneficial effects: because the roller separates the back with the pole piece, the coil is established in first clearance, and from this, the both sides of coil can heat the pole piece, so, heating device can reduce the quantity of coil to practice thrift the cost.

According to some embodiments of the invention, the heating device, the roller has a plurality of rollers, and the plurality of rollers are arranged as follows: the pole pieces can be sequentially wound to form at least two first gaps and at least one second gap, and the first gaps and the second gaps are sequentially arranged at intervals.

According to the heating device provided by the invention, the roller is provided with a plurality of coils, and the coils are arranged in the second gaps and used for heating the pole pieces on two sides.

According to the heating device of some embodiments of the invention, the roller can be driven to move so as to drive the pole piece to move; or, the heating device further comprises a driving piece, and the driving piece is used for driving the pole piece to move.

According to some embodiments of the heating device of the present invention, the coil has a plurality of coils, and the plurality of coils are spaced apart from each other along the length direction of the pole piece.

According to some embodiments of the invention, the heating device, the roller is configured to: the pole pieces on two sides of the roller are arranged in parallel, so that the distances from the coils to the pole pieces on two sides are equal.

According to some embodiments of the heating device of the present invention, the coil has a plurality of coils, and the plurality of coils are arranged at intervals in the first gap along the width direction of the pole piece.

According to the heating device provided by the invention, along the length direction of the pole piece, the heating device comprises at least two groups of coils, each group of coils comprises at least one coil, and the high-temperature areas of two adjacent groups of coils are staggered along the width direction of the pole piece.

According to the heating device of some embodiments of the present invention, the coils include the high temperature regions on both sides and a low temperature region between the high temperature regions in a width direction of the pole piece, and the high temperature region of one group of the coils corresponds to the low temperature region of the other group of the coils among two adjacent groups of the coils.

According to some embodiments of the heating apparatus of the present invention, among two adjacent sets of the coils, a first set of the coils includes N coils, a second set of the coils includes N-1 coils, N is a positive integer greater than or equal to 2, and two of the high temperature regions of each of the coils in the second set correspond to the low temperature regions of two adjacent coils in the first set, respectively.

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 invention is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic view of a heating device according to some embodiments of the present invention;

FIG. 2 is a schematic view of a coil and a pole piece in a heating device according to some embodiments of the invention;

FIG. 3 is a schematic view of a coil and pole piece of another embodiment of a heating device according to some embodiments of the invention;

fig. 4 is a schematic view of a multiple coil arrangement of another embodiment of a heating device of some embodiments of the present invention.

Reference numerals are as follows:

pole piece 100, roller 200, coil 300, high temperature zone 310, low temperature zone 320, first gap 400, second gap 500.

Detailed Description

Reference will now be made in detail to 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 accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to 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, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present numbers, and larger, smaller, inner, etc. are understood as including the present numbers. 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 otherwise specifically limited, terms such as set, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means 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.

Referring to fig. 1, in some embodiments, a heating device for heating a pole piece 100 includes: roller 200 and coil 300, roller 200 is used for pole piece 100 to wind, so as to form first gap 400 between pole piece 100 on two sides of roller 200; the coil 300 is disposed in the first gap 400 for heating the pole pieces 100 on both sides. For example, after the pole piece 100 is separated by the roller 200, the coil 300 is disposed in the first gap 400, so that the coil 300 can heat the pole piece 100 on both sides, and thus, the number of the coils 300 can be reduced to save cost.

Further, the roller 200 can separate the pole piece 100 up and down, or left and right, as long as the first gap 400 is formed after separation, the coil 300 can be placed, and meanwhile, the coil 300 can heat the pole piece 100 through electromagnetic induction. Specifically, since two surfaces of the coil 300 correspond to the pole pieces 100, when alternating current is applied to the coil 300, eddy current can be generated in the pole pieces 100 on two sides to heat the coil, and the pole pieces 100 are heated uniformly.

Specifically, the alternating current of the heating device generates a magnetic field through the coil of the coil 300, and when the magnetic lines of force in the magnetic field pass through the pole piece 100, an eddy current is generated, so that the pole piece 100 is heated rapidly. More specifically, since the same coil 300 can heat the pole pieces 100 at intervals, the pole pieces 100 receive the same amount of heat, and thus the heating device can uniformly heat the pole pieces 100.

Further, referring to fig. 1, in some embodiments, the roller 200 has a plurality of rollers 200, and the plurality of rollers 200 are configured as: the pole pieces 100 can be sequentially wound to form at least two first gaps 400 and at least one second gap 500, and the first gaps 400 and the second gaps 500 are sequentially arranged at intervals. For example, the pole piece 100 can be manufactured in a large scale, so that the length of the strip-shaped pole piece 100 is extremely long, which facilitates the uniform heating of the pole piece 100 by the worker and improves the drying quality of the pole piece 100. Specifically, there are a plurality of, for example, three rollers 200, wherein two rollers 200 are disposed on the same horizontal plane, and the last roller 200 is disposed directly above one of the two rollers 200. Further, after pole piece 100 is wound around three rollers 200, two first gaps 400 and one second gap 500 are formed, wherein a worker can heat pole piece 100 only by arranging coils 300 in two first gaps 400. Therefore, the pole piece 100 not only can meet the quality requirement of drying, but also can save the use of the coil 300 and the occupied space of the heating device, and save the cost.

Although three rollers 200 are exemplified and described above, the invention is not limited thereto, and five rollers 200, seven rollers 200, eight rollers 200, and the like may be provided, and the description thereof is omitted.

Further, referring to fig. 1, in some embodiments, a coil 300 is disposed in the second gap 500 for heating the pole piece 100 on both sides. Specifically, in order to heat the pole piece 100 better, a better heating effect is achieved. The coil 300 may also be disposed in the second gap 500 to heat the pole piece 100.

Further, referring to fig. 1, in some embodiments, the roller 200 can be driven to move to drive the pole piece 100 to move; alternatively, the heating device further comprises a driving member for driving the pole piece 100 to move. For example, as roller 200 is driven, pole piece 100 wraps around the outer surface of roller 200 and is moved by roller 200. Further, the pole piece 100 can be driven by the roller 200 to move forward, in the moving process, the coil 300 uniformly heats the pole piece 100, and the heating device keeps a continuous and gradual heating process of the pole piece 100 because the pole piece 100 always moves, thereby ensuring the drying quality of the pole piece 100.

Further, the heating device may be provided with a plurality of rollers 200 to drive the pole piece 100 to move.

Further, the driving member may be a motor, or other mechanism for processing the pole piece 100, such as a winding or unwinding mechanism. So, the driving piece drives pole piece 100 to move, and pole piece 100 is in the motion process, is carried out continuous and heating step by coil 300 to it to guarantee the oven-dry mass of pole piece 100.

Further, referring to fig. 2, in some embodiments, the coils 300 are multiple, and the multiple coils 300 are disposed at the first gap 400 at intervals along the length direction of the pole piece 100. For example, there may be three coils 300, and since the heating capacities of different areas of the coil 300 are different, for example, the heating capacity of the central area of the coil 300 is usually weaker, if one coil 300 is used to heat the pole piece 100, the central area of the coil 300 will heat the pole piece 100 poorly, and thus the coil 300 will not heat the pole piece 100 to cover the whole area. Therefore, when the plurality of coils 300 are arranged at intervals, on one hand, the center and the edge area of the coils 300 can cover the pole piece 100 in all directions, so that the pole piece 100 can be uniformly and comprehensively heated, and on the other hand, compared with the scheme adopting one coil 300, when one of the plurality of coils 300 is damaged, the replacement cost of the whole coil 300 is lower.

Although the above description is given by taking an example that there are three coils 300, the present invention is not limited to this, and there may be five coils 300, seven coils 300, eight coils 300, and the like, and the description thereof is omitted.

Further, referring to fig. 3, in some embodiments, the roller 200 is configured to: the pole pieces 100 on both sides of the roller 200 are arranged in parallel, so that the distance from each coil 300 to the pole pieces 100 on both sides is equal. Specifically, because of the equal distance, the temperature of the pole piece 100 heated by the coil 300 is the same, so that the pole piece 100 is uniformly heated.

Further, referring to fig. 3, in some embodiments, the plurality of coils 300 are disposed at the first gap 400 at intervals along the width direction of the pole piece 100. For example, there may be three coils 300, and the pole piece 100 may be in an elongated shape, so that a plurality of coils 300 are spaced apart along the width direction of the pole piece 100, and the center and edge regions of the plurality of coils are spaced apart to cover the pole piece 100, so as to uniformly heat the pole piece 100.

Although the above description has been given by taking an example that there are three coils 300, the present invention is not limited to this, and there may be five coils 300, seven coils 300, eight coils 300, and the like, which are not described herein again.

Further, referring to fig. 3, in some embodiments, the heating device includes at least two sets of coils 300 along the length direction of the pole piece 100, each set of coils 300 includes at least one coil 300, and the high temperature regions 310 of two adjacent sets of coils 300 are staggered along the width direction of the pole piece 100. For example, high temperature regions 310 of coil 300 are staggered to heat pole piece 100, so that each position of pole piece 100 is heated uniformly. While the cross-section of the coil 300 may be rectangular, the rectangular coil 300 can be conveniently disposed in the first gap 400 by a worker to heat the pole piece 100. Moreover, the rectangular coil 300 can be conveniently arranged and arranged by workers, so that the working time is saved, and the working efficiency is improved.

Further, referring to fig. 4, in some embodiments, along the width direction of pole piece 100, coils 300 include high temperature regions 310 at two sides and low temperature regions 320 between high temperature regions 310, and in two adjacent groups of coils 300, high temperature regions 310 of one group of coils 300 correspond to low temperature regions 320 of the other group of coils 300.

Further, the number of coils 300 may be selected by the practitioner based on the length and width of pole piece 100. In some embodiments, among the two adjacent groups of coils 300, the first group of coils 300 includes N coils 300, the second group of coils 300 includes N-1 coils 300, N is a positive integer greater than or equal to 2, and the two high temperature regions 310 of each coil 300 in the second group respectively correspond to the low temperature regions 320 of the two adjacent coils 300 in the first group.

Specifically, taking two adjacent groups of coils 300 as an example, there may be five coils 300, five coils 300 in the width direction of the pole piece 100, three coils 300 in one group, two coils 300 in another group, and along the length direction of the pole piece 100, another group of coils 300 is disposed behind one group of coils 300, specifically, the high temperature region 310 of another group of two coils 300 corresponds to the low temperature region 320 of one group of three coils 300, so that the low temperature region 320 of the first three coils 300 corresponds to the high temperature region 310 of the second two coils 300, counted from the length direction of the pole piece 100, that is, the three coils 300 and the two coils 300 are arranged. Thus, when the pole piece 100 is driven by the driving member to move, the high temperature regions 310 of the first three coils 300 heat part of the area of the pole piece 100, and the high temperature regions 310 of the second two coils 300 heat other areas corresponding to the low temperature regions 320 of the first three coils 300, so as to improve the problem of uneven heating of the pole piece 100.

It should be noted that the number of coils 300 between adjacent groups is not limited, and the number of each group is not limited, as long as the high temperature region 310 and the low temperature region 320 can cover the pole piece 100 and uniformly heat the pole piece 100 when the pole piece 100 moves.

Further, in some embodiments, the heating device further comprises a controller for controlling the heating power of the coil 300. For example, there may be a plurality of coils 300, and likewise, there may be a plurality of controllers. The plurality of controllers can independently control the heating power of each coil 300, so that the heated pole piece 100 is stabilized in a temperature range, the pole piece 100 is uniformly heated, and the drying quality of the pole piece 100 is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims

1. Heating device for heat pole piece, its characterized in that includes:

the roller is used for winding the pole pieces so as to form a first gap between the pole pieces on two sides of the roller;

and the coil is arranged in the first gap and used for heating the pole pieces on two sides.

2. The heating device of claim 1, wherein the roller has a plurality of rollers arranged to: the pole pieces can be sequentially wound to form at least two first gaps and at least one second gap, and the first gaps and the second gaps are arranged at intervals in sequence.

3. The heating device of claim 2, wherein the coil is disposed in the second gap for heating the pole pieces on both sides.

4. The heating device of claim 1, wherein the roller is capable of being driven to move the pole piece; or, the heating device further comprises a driving piece, and the driving piece is used for driving the pole piece to move.

5. The heating device of claim 1, wherein the coil has a plurality of coils, and the plurality of coils are spaced apart from each other along the length of the pole piece in the first gap.

6. The heating apparatus of claim 5, wherein the roller is configured to: the pole pieces on two sides of the roller are arranged in parallel, so that the distances from the coils to the pole pieces on two sides are equal.

7. The heating device according to claim 1, wherein the coil has a plurality of coils, and the plurality of coils are arranged at intervals in the first gap in a width direction of the pole piece.

8. The heating device of claim 1, wherein the heating device comprises at least two groups of the coils along the length direction of the pole piece, each group of the coils comprises at least one coil, and the high temperature regions of two adjacent groups of the coils are staggered along the width direction of the pole piece.

9. The heating apparatus as claimed in claim 8, wherein said coils include said high temperature regions on both sides and a low temperature region between said high temperature regions in a width direction of said pole piece, and among adjacent two sets of said coils, said high temperature region of one set of said coils corresponds to said low temperature region of the other set of said coils.

10. The heating apparatus as claimed in claim 9, wherein, among two adjacent sets of the coils, a first set of the coils includes N coils, a second set of the coils includes N-1 coils, N is a positive integer greater than or equal to 2, and wherein the two high temperature regions of each of the coils in the second set correspond to the low temperature regions of two adjacent coils in the first set, respectively.