CN112736274A

CN112736274A - Film coating device and film coating equipment

Info

Publication number: CN112736274A
Application number: CN202110008392.6A
Authority: CN
Inventors: 占义包; 彭煜辉; 刘万华; 陈木贵
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-04-30
Anticipated expiration: 2041-01-05
Also published as: CN112736274B

Abstract

The application discloses diolame device and diolame equipment for turn over the book toward the top cap direction to the insulating film on the monomer battery side, the monomer battery includes casing, top cap and utmost point post, and top cap encapsulation casing, utmost point post are worn to establish the top cap, and the diolame device is used for turning over the book to the insulating film on the casing and compressing tightly to the top cap, and the diolame device includes: a support; the sliding mechanism can slide up and down relative to the bracket; the edge folding mechanism comprises a first driving piece and a first edge folding piece, the first driving piece is rotatably connected with the sliding mechanism, and the first edge folding piece is rotatably connected with the first driving piece; when the sliding mechanism drives the edge folding mechanism to move and the first driving piece drives the first edge folding piece to be in the first state, the first edge folding piece folds and attaches the insulating film on the shell to the top cover in the direction of the pole, and when the first driving piece drives the first edge folding piece to be in the second state, the first edge folding piece compresses the insulating film. The coating device can enable the insulating film to be tightly attached to the top cover, and the warping is avoided.

Description

Film coating device and film coating equipment

Technical Field

The application relates to the technical field of battery coating machinery, in particular to a coating device and coating equipment.

Background

The lithium battery has the advantages of sustainable recycling and low pollution, is rapidly developed in recent years, and is widely applied to the fields of electric automobiles, energy storage and the like.

The lithium cell includes naked electric core, aluminum hull and top cap, and the aluminum hull encapsulates outside naked electric core to with top cap closing cap aluminum hull, thereby constitute battery cell. An insulating film is usually coated outside the single battery and is coated on the aluminum shell and part of the top cover, so that the single battery can maintain good insulating property and is convenient to use.

Among the current diolame mode, when carrying out the hem diolame with the insulating film from the casing toward the top cap direction, directly accomplish the diolame through the mode of upset hem promptly, but because the distance between utmost point post and the casing is narrower to lead to this hem diolame mode to make the insulating film attached not inseparable on the top cap, thereby lead to follow-up in-service can rise to stick up, influence the use of electric core.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a coating device, can make the insulating film on the casing turn over the back toward the top cap direction and turn over the back and attach closely, avoid upwarping and have the bubble.

The application also provides a coating device with the coating device.

According to the diolame device of the first aspect embodiment of this application for turn over the book toward the top cap direction to the insulating film on the monomer battery side, the monomer battery includes casing, top cap and utmost point post, the top cap encapsulation the casing, utmost point post wears to establish the top cap, the diolame device is used for right insulating film on the casing turns over to turn over and compresses tightly extremely the top cap, the diolame device includes: a support; a slide mechanism capable of sliding up and down relative to the bracket; the edge folding mechanism comprises a first driving piece and a first edge folding piece, the first driving piece is rotatably connected with the sliding mechanism, and the first edge folding piece is rotatably connected with the first driving piece; the sliding mechanism drives the edge folding mechanism to move and the first driving piece drives the first edge folding piece to be in a first state, the first edge folding piece enables the insulating film on the shell to be folded in the direction of the pole and attached to the top cover, and when the first edge folding piece is in a second state, the first edge folding piece enables the insulating film to be compressed.

According to the coating device of the embodiment of the application, at least the following beneficial effects are achieved: under the motion that sliding mechanism drove hem mechanism, first hem spare of first driving piece drive simultaneously is in the first state, first hem spare among the hem mechanism can be turned over the insulating film on the casing toward the top cap direction, when first hem spare of first driving piece drive changed to the second state this moment, first hem spare can compress tightly the insulating film, thereby make the insulating film on the casing side turn over toward the top cap direction and compress tightly, turn over earlier and compress tightly, thereby make the insulating film can be compressed tightly on the top cap, avoid upwarping.

According to some embodiments of the application, first hem spare with the contact surface of utmost point post reaches first hem spare with the contact surface of top cap is the inclined plane.

According to some embodiments of the application, first hem spare with the contact surface of utmost point post reaches first hem spare with the contact surface of top cap is connected through the arcwall face between the two.

According to some embodiments of the present application, a first heat-conducting wire is disposed in the first folding member, and the first heat-conducting wire is used for heating the first folding member.

According to some embodiments of the application, the material of the first hem member is silicone or rubber.

According to the coating equipment of the second aspect embodiment of this application, include as above-mentioned coating device, coating device includes two slide mechanism and two hem mechanism, one slide mechanism corresponds and drives one the motion of hem mechanism, two the hem mechanism sets up relatively, is used for right the insulating film of the upper and lower both sides of casing toward the direction of utmost point post is turned over and is compressed tightly extremely the top cap.

According to the coating equipment of the embodiment of the application, at least the following beneficial effects are achieved: the single battery packaging machine comprises two sliding mechanisms and two edge folding mechanisms, so that the insulating films on two large surfaces of a single battery can be turned over and compressed at one time, the two side edge folding mechanisms are further arranged on a support, the insulating films on two small surfaces of a shell can be directly turned over and compressed to a top cover, the single battery packaging is automated, two steps can be completed, and the packaging efficiency is high.

According to some embodiments of the application, the coating equipment further comprises two side folding mechanisms, the two side folding mechanisms are arranged on the front side and the rear side of the support and used for folding and pressing the insulating films on the front side and the rear side of the shell to the top cover along the direction of the pole.

According to some embodiments of the application, the side folding mechanism comprises a second driving piece and a second folding piece, the second driving piece drives the second folding piece to move so as to fold and compress the insulating film to the top cover, and the contact surface of the second folding piece and the top cover is an inclined surface.

According to some embodiments of the present application, the second flange has a second heat conductive filament mounted therein, the second heat conductive filament configured to heat the second flange.

According to some embodiments of the application, the coating apparatus further includes a battery holder for holding the single batteries, the bracket includes a base and sliding seats, each of the sliding mechanisms and each of the flanging mechanisms are disposed on the sliding seat, and the sliding seat slides relative to the base under the driving of a fourth driving member to approach or depart from the battery holder.

Additional aspects and advantages of the present application 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 present application.

Drawings

The present application is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic diagram of a cell according to an embodiment of the present disclosure without an envelope; (ii) a

FIG. 2 is a schematic diagram of the encapsulated single battery in FIG. 1;

FIG. 3 is a schematic structural view of an encapsulation device according to an embodiment of the present application;

fig. 4 is a schematic structural view of the first folding member in fig. 3 in a first state and a single battery;

FIG. 5 is an enlarged schematic view at I of FIG. 4;

fig. 6 is a schematic structural view of the first folding member in fig. 3 in a second state and a single battery;

FIG. 7 is an enlarged view at II in FIG. 6;

FIG. 8 is a schematic structural view of an encapsulation tool according to another embodiment of the present application.

Reference numerals:

an encapsulation device 100;

the support 110, the base 111, the sliding seat 112 and the fourth driving part 113;

a sliding mechanism 120, a third driving member 121, a first slider 122, a first sliding groove 123, and a fixing member 124;

the folding mechanism 130, the first driving member 131, the first folding member 132, the connecting member 133, the first surface 1321, the second surface 1322, and the first heat-conductive wire 1323;

the battery cell comprises a single battery 200, a shell 210, a top cover 220, a pole 230, a large surface 240 and a small surface 250;

an insulating film 300;

an encapsulation tool 400;

the side folding mechanism 410, the second driving element 411, the second folding element 412, the second slider 413, the second sliding groove 414, the mounting element 415, and the second heat-conducting wire 4121;

battery holder 420, bottom plate 421, layer board 422, keep off board 423.

Detailed Description

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

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.

In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present number, and the above, below, within, etc. are understood as including the present 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 application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

In the description of the present application, 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 application. 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 to 7, an encapsulation device 100 according to an embodiment of the present disclosure includes a support 110, a sliding mechanism 120, and a folding mechanism 130.

The film wrapping device 100 in this embodiment is used for folding the insulating film on the side surface of the single battery 200 in the direction of the top cover, the single battery 200 includes a housing 210, the top cover 220 and a terminal post 230, the top cover 220 encapsulates the housing 210, the terminal post 230 penetrates through the top cover 220, and the film wrapping device 100 is used for folding the insulating film 300 on the housing 210 and pressing the insulating film to the top cover 220.

Fig. 1 is a schematic diagram of a single battery 200 without being coated, and fig. 2 is a schematic diagram of the single battery 200 after being coated, wherein the single battery 200 includes two opposite large surfaces 240 and two opposite small surfaces 250, the coating apparatus 100 in this embodiment is used for folding an insulating film 300 on the large surfaces 240 in the single battery 200 in the direction of a terminal 230 and pressing the insulating film onto a top cover 220, and since a distance between the terminal 230 and the large surfaces 240 is narrow, the insulating film 300 is not tightly coated after the coating is completed by existing coating equipment, so that a warping phenomenon occurs.

In an embodiment of the present application, the bracket 110 is used for supporting the sliding mechanism 120 and the hemming mechanism 130, and the sliding mechanism 120 can slide up and down relative to the bracket 110 and drive the hemming mechanism 130 to slide up and down; the folding mechanism 130 comprises a first driving member 131 and a first folding member 132, wherein the length of the first folding member 132 is greater than that of the single battery 200, the first driving member 131 is rotatably connected with the sliding mechanism 120, and the first folding member 132 is rotatably connected with the first driving member 131; when the sliding mechanism 120 drives the folding mechanism 130 to move and the first driving element 131 drives the first folding element 132 to be in the first state, the first folding element 132 folds the insulating film 300 on the housing 210 toward the pole 230 and attaches the insulating film to the top cover 220, specifically referring to fig. 4 and 5, when the first driving element 131 drives the first folding element 132 to be in the second state, the first folding element 132 compresses the insulating film 300, referring to fig. 6 and 7, wherein the insulating film 300 in this embodiment is the insulating film 300 on the large surface 240.

Above-mentioned diolame device 100, under the motion that drives hem mechanism 130 at slide mechanism 120, first driving piece 131 drives first hem piece 132 and is in first state simultaneously, first hem piece 132 among hem mechanism 130 can turn over insulating film 300 on casing 210 toward top cap 220 direction, first driving piece 131 drives first hem piece 132 and turns over when changing into the second state this moment, first hem piece 132 can compress tightly insulating film 300, thereby make insulating film 300 on a big face 240 of casing 210 turn over toward top cap 220 direction and compress tightly, turn over earlier and compress tightly, thereby make insulating film 300 can be compressed tightly on top cap 220, avoid upwarping.

Referring to fig. 3, in an embodiment of the present application, the sliding mechanism 120 includes a third driving member 121, a first sliding block 122, a first sliding slot 123 and a fixing member 124, wherein the third driving member 121 is fixedly connected to the fixing member 124, the first sliding block 122 is disposed on the bracket 110, the first sliding slot 123 is disposed on one side of the fixing member 124, and the first sliding slot 123 is slidably connected to the first sliding block 122, so that the third driving member 121 drives the fixing member 124 to slide up and down relative to the first sliding block 122.

The third driving member 121 in this embodiment is a driving cylinder.

In this embodiment, two first sliding blocks 122 arranged in parallel at intervals and two first sliding grooves 123 arranged in parallel at intervals are provided, and one first sliding groove 123 is slidably connected with one first sliding block 122, so that the third driving member 121 drives the two first sliding grooves 123 on the fixing member 124 to slide up and down stably with respect to the two first sliding blocks 122.

In one embodiment of the present application, the folding mechanism 130 includes a first driving member 131, a first folding member 132, and two connecting members 133, the first driving member 131 is rotatably connected to the sliding mechanism 120, and the first folding member 132 is rotatably connected to the first driving member 131.

The first driving member 131 in this embodiment is a driving cylinder.

Specifically, one end of the first driving member 131 is rotatably connected to the fixing member 124, the other end of the first driving member 131 is rotatably connected to the first folding member 132, two ends of the first folding member 132 are rotatably connected to one end of a connecting member 133, and the other end of the connecting member 133 is fixedly connected to the fixing member 124. Therefore, the first folding member 132 can rotate relative to the connecting member 133 under the driving of the first driving member 131, and the connecting member 133 is fixedly connected to the fixing member 124, so that the first folding member 132 can rotate relative to the sliding mechanism 120, and the sliding mechanism 120 and the first driving member 131 can drive the first folding member 132 to have different operation states.

Referring to fig. 4 to 7, a contact surface of the first folding member 132 and the pole 230 is a first surface 1321, a contact surface of the first folding member 132 and the top cover 220 is a second surface 1322, and the first surface 1321 and the second surface 1322 are both inclined surfaces. Because the post 230 and the top cover 220 are in a vertical state, and the included angle between the post 230 and the top cover 220 is 90 degrees, the contact surface between the first folding member 132 and the post 230 and the contact surface between the first folding member 132 and the top cover 220 are inclined surfaces, and the included angle between the first folding member 132 and the top cover 220 is smaller than 90 degrees, so that after the sliding mechanism 120 and the first driving member 131 drive the first folding member 132 to fold the insulating film 300 on the housing 210 in the direction of the post 230, gaps are reserved between the first surface 1321 and the post 230 and between the second surface 1322 and the top cover 220, and the first driving member 131 can drive the first folding member 132 to push down in the direction of the post 230, so as to compress the insulating film 300, and the first driving member 131 drives the second surface to press and contact the top cover 220 again, so that the insulating film 300 is further compressed, so that the insulating film 300.

Referring to fig. 4 to 7, since the connection region between the top cover 220 and the housing 210 is in arc transition, the contact surface between the first folding member 132 and the post 230 and the contact surface between the first folding member 132 and the top cover 220 are in arc transition, that is, the first surface 1321 and the second surface 1322 are connected through an arc surface, so as to be adapted to the arc transition region between the top cover 220 and the housing 210, thereby preventing scratching the battery and ensuring the tightness of the adhesive.

Wherein, in order to make insulating film 300 stereotype, be equipped with first heat conduction silk 1323 in the first hem piece 132, first heat conduction silk 1323 is used for heating first hem piece 132 to when first hem piece 132 carries out the hem press mold, can also heat the design to insulating film 300, can closely attach on top cap 220 surface after making its cooling, avoid the perk, guarantee the pad pasting effect.

The first heat-conducting wire 1323 is pre-installed in the first folding member 132, and when folding is performed, the first heat-conducting wire 1323 is heated, the folding and hot stamping resisting pressure is preset to be 5 kgf-10 kgf, the heating temperature of the first heat-conducting wire 1323 is preset to be 100-120 ℃, and the heating time lasts for 2-5 seconds.

In addition, since the entire housing of the single battery 200 is made of metal, the first folding member 132 in this embodiment is made of silicon rubber or rubber, and has certain elasticity and high temperature resistance. Thereby not only being able to withstand high temperatures during heating, but also being able to protect the battery cells 200 and make the envelope tighter.

The specific use process of the encapsulation device 100 is as follows: when the insulating film 300 on the large surface 240 on the upper side of the housing 210 is folded, the third driving member 121 drives the folding mechanism 130 to descend integrally, the first driving member 131 drives the first folding member 132 to extend to make the first folding member 132 in the first state, the first surface 1321 of the first folding member 132 and the top cover 220 are substantially in a vertical state, referring to fig. 4 and 5, the arc transition area of the first surface 1321 and the second surface 1322 presses the insulating film 300 on the arc transition area of the top cover 220 and the large surface 240 to move toward the pole 230 under the driving of the first driving member 131, at this time, the insulating film 300 is pressed onto the top cover 220, the first driving member 131 extends again to drive the first folding member 132 to change into the second state, the second surface 1322 of the first folding member 132 moves toward the top cover 220 and is tightly attached to the top cover 220, referring to fig. 6 and 7, after the encapsulation of one large surface 240 is completed, the single cell 200 is clamped upside down and then another opposite large surface 240 is encapsulated by wrapping the insulating film 300 on the top cover 220 through a plurality of steps.

Above-mentioned diolame device 100, set up to the inclined plane through the contact surface with first hem piece 132 and utmost point post 230, and design the contact surface of first hem piece 132 and top cap 220 as the inclined plane, thereby under the common cooperation of third driving piece 121 and first driving piece 131, can drive first hem piece 132 and compress tightly insulating film 300 on top cap 220, and still be equipped with first heat-conducting wire 1323 in first hem piece 132, can make insulating film 300 heated the design, and can guarantee the planarization of pad pasting after the cooling, avoid upwarping in follow-up use.

Referring to fig. 8, a film wrapping apparatus 400 provided in another embodiment of the present application includes two sliding mechanisms 120 and two folding mechanisms 130, where one sliding mechanism 120 correspondingly drives one folding mechanism 130 to move, and the two folding mechanisms 130 are oppositely disposed and are used to fold the insulating films 300 on the two large surfaces 240 on the upper and lower sides of the housing 210 in the direction of the pole 230 and press the insulating films to the top cover 220, so that the film wrapping of the two large surfaces 240 of the housing 210 is completed at one time, and the film wrapping efficiency is high.

In an embodiment of the present application, the coating apparatus 400 further includes two side folding mechanisms 410, where the two side folding mechanisms 410 are disposed on the front and rear sides of the bracket 110, and are configured to fold the insulating films 300 of the two facets 250 on the front and rear sides of the housing 210 in the direction of the pole 230 and press the insulating films to the top cover 220.

The side folding mechanism 410 includes a second driving element 411 and a second folding element 412, the second driving element 411 is fixedly connected to the bracket 110, and the two second folding elements 412 are driven by the respective second driving elements 411 to fold the insulating films 300 of the two small surfaces 250 on the front and rear sides of the housing 210 in the direction of the pole 230 and press the insulating films to the top cover 220. The contact surface of the second flange 412 and the top cover 220 is an inclined surface. The width of the second flange 412 is greater than the width of the unit battery 200.

The second driving member 411 is a driving cylinder in this embodiment.

Specifically, the side folding mechanism 410 includes a second driving element 411, a second folding element 412, a second sliding block 413, a second sliding slot 414 and a mounting element 415, wherein the second driving element 411 is disposed on the bracket 110 and fixedly connected to the bracket 110, the second sliding block 413 is disposed on the bracket 110, the second sliding block 413 is perpendicular to the first sliding block 122, the second sliding slot 414 is disposed on one side of the mounting element 415, the second sliding slot 414 is slidably connected to the second sliding block 413, and the second folding element 412 is fixedly connected to the mounting element 415, so that the mounting element 415 is driven by the second driving element 411 to slide relative to the bracket 110, and thus, the second folding element 412 disposed on the mounting element 415 is driven to slide relative to the bracket 110.

In addition, in order to shape the insulating film 300, a second heat conduction wire 4121 is arranged in the second flanging part 412, and the second heat conduction wire 4121 is used for heating the second flanging part 412, so that when the second flanging part 412 is subjected to flanging and film pressing, the insulating film 300 can be heated and shaped, and the insulating film 300 can be tightly attached to the surface of the top cover 220 after being cooled, so that the tilting is avoided, and the film sticking effect is ensured.

The second heat conduction wire 4121 is pre-installed in the second flanging element 412, and when flanging is performed, the second heat conduction wire 4121 is heated, the flanging and hot stamping resisting pressure is preset to be 5 kgf-10 kgf, the heating temperature of the second heat conduction wire 4121 is preset to be 100-120 ℃, and the heating time lasts for 2-5 seconds.

In addition, since the entire housing of the single battery 200 is made of metal, the second flange 412 in this embodiment is made of silicon rubber or rubber, and has certain elasticity and high temperature resistance. Thereby not only being able to withstand high temperatures during heating, but also being able to protect the battery cells 200 and make the envelope tighter.

Referring to fig. 8, the encapsulation apparatus 400 further includes a battery holder 420 for holding the single battery 200, the bracket 110 includes a base 111 and a sliding seat 112, the sliding mechanism 120, the two crimping mechanisms 130 and the two side crimping mechanisms 410 are disposed on the sliding seat 112, and the sliding seat 112 is driven by the fourth driving member 113 to slide relative to the base 111 to approach and separate from the battery holder 420. Therefore, under the driving of the fourth driving member 113, an avoidance space can be reserved between the sliding seat 112 and the battery fixing frame 420, which is convenient for the operation of grabbing and placing the single battery 200 by the manipulator.

The fourth driver 113 is a driving cylinder.

In one embodiment of the present application, the battery holder 420 includes a bottom plate 421, a supporting plate 422, and a blocking plate 423, wherein the bottom plate 421 is used for mounting the supporting plate 422, the unit battery 200 is placed on the supporting plate 422, and the blocking plate 423 is used for blocking the unit battery 200. Wherein the height of the support plate 422 matches the height of the side folding mechanism 410.

The enveloping device 400 comprises two sliding mechanisms 120 and two folding mechanisms 130, so that one-time flanging and enveloping of two large surfaces 240 of the single battery 200 can be realized, and two side folding mechanisms 410 are further arranged on the support 110, so that the insulating films 300 on two small surfaces 250 of the shell 210 can be directly folded and pressed onto the top cover 220, so that the enveloping of the single battery 200 is realized automatically, two steps can be completed, and the enveloping efficiency is high.

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

Claims

1. The diolame device for turn over towards the top cap direction to the insulating film on the monomer battery side and turn over, the monomer battery includes casing, top cap and utmost point post, the top cap encapsulation the casing, utmost point post wears to establish the top cap, the diolame device be used for right insulating film on the casing turns over to turn over and compresses tightly extremely the top cap, its characterized in that, the diolame device includes:

a support;

a slide mechanism capable of sliding up and down relative to the bracket;

the edge folding mechanism comprises a first driving piece and a first edge folding piece, the first driving piece is rotatably connected with the sliding mechanism, and the first edge folding piece is rotatably connected with the first driving piece;

the sliding mechanism drives the edge folding mechanism to move and the first driving piece drives the first edge folding piece to be in a first state, the first edge folding piece enables the insulating film on the shell to be folded in the direction of the pole and attached to the top cover, and when the first edge folding piece is in a second state, the first edge folding piece enables the insulating film to be compressed.

2. The capsule device of claim 1, wherein the contact surfaces of the first crimping member and the post and the cap are beveled.

3. The capsule device of claim 2, wherein the contact surface of the first folding member with the post and the contact surface of the first folding member with the cap are connected by arcuate surfaces.

4. The encapsulation device of claim 1, wherein a first heat-conducting wire is disposed within the first crimping member, the first heat-conducting wire being configured to heat the first crimping member.

5. The encapsulation of claim 1, wherein the first hem member is silicone or rubber.

6. The film wrapping device is characterized by comprising the film wrapping device according to any one of claims 1 to 5, wherein the film wrapping device comprises two sliding mechanisms and two folding mechanisms, one sliding mechanism correspondingly drives one folding mechanism to move, and the two folding mechanisms are oppositely arranged and used for folding the insulating films on the upper side and the lower side of the shell towards the pole and pressing the insulating films to the top cover.

7. The coating machine of claim 6, further comprising two side folding mechanisms, wherein the two side folding mechanisms are arranged on the front side and the rear side of the support and used for folding the insulating films on the front side and the rear side of the shell towards the pole direction and pressing the insulating films to the top cover.

8. The film wrapping apparatus of claim 7, wherein the side folding mechanism includes a second driving member and a second folding member, the second driving member drives the second folding member to move to fold and press the insulating film to the top cover, and a contact surface of the second folding member and the top cover is an inclined surface.

9. The encapsulation tool of claim 8, wherein the second crimping member houses a second thermally conductive filament therein, the second thermally conductive filament configured to heat the second crimping member.

10. The encapsulation apparatus of claim 6, further comprising a battery holder for holding the single battery, wherein the bracket includes a base and a sliding seat, each sliding mechanism and each crimping mechanism are disposed on the sliding seat, and the sliding seat slides relative to the base to move toward or away from the battery holder under the driving of the fourth driving member.