CN217641470U

CN217641470U - Can heat retaining electric core preheating device

Info

Publication number: CN217641470U
Application number: CN202221421444.9U
Authority: CN
Inventors: 罗威
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-10-21
Anticipated expiration: 2032-06-08

Abstract

The utility model provides a heat-preserving cell preheating device, which comprises a supporting plate, a pressing plate and a Z-axis module, wherein the heating pipe is arranged in the supporting plate, the pressing plate is arranged in the pressing plate, the Z-axis module is arranged at the top of the pressing plate, a floating lower support pillar is arranged at the top of the supporting plate, and the lower support pillar can be flush with the upper surface of the supporting plate through shrinkage; the bottom of clamp plate is provided with unsteady last fore-set, go up the fore-set and can be parallel and level with the lower surface of clamp plate through the shrink. The utility model has the advantages that the battery cell can be clamped between the supporting plate and the pressing plate by the lower supporting column and the upper supporting column after preheating is finished through the floating lower supporting column and the upper supporting column, and the heat of the heating pipe is utilized to keep the temperature of the battery cell; this electricity core preheating device can avoid appearing long-time trouble because of hot press and back end equipment, the problem of the reduction of electric core temperature that leads to has ensured production efficiency and productivity.

Description

Can heat retaining electric core preheating device

Technical Field

The utility model belongs to the technical field of industrial equipment, a electricity core preheating device is related to.

Background

In the manufacturing process of the lithium battery, after the battery core needs to be preheated to a certain temperature, hot pressing operation is carried out, so that the production efficiency and the capacity are improved.

However, for the battery cell preheating device widely used at present, when long-time faults occur to the hot press and the back-end equipment, the preheated battery cell can only be taken out of the battery cell preheating device and temporarily placed after reaching the preset temperature, however, the temperature of the pole core of the battery cell is reduced in the placing process, and when the battery cell is used subsequently, if the battery cell is placed back into the battery cell preheating device for preheating again, the preheating time of the battery cell is prolonged, and the continuity of production line production can be seriously influenced by the operation; therefore, when the battery cell is used, the battery cell is generally and directly hot-pressed, but the hot-pressing time of the battery cell can be prolonged by the operation of direct hot-pressing, and the production efficiency and the capacity are greatly influenced.

SUMMERY OF THE UTILITY MODEL

For solving the background art the problem, the utility model provides a can heat retaining electricity core preheating device.

The technical scheme of the utility model comprises a support plate with a heating pipe arranged inside, a pressing plate with a heating pipe arranged inside and a Z-axis module arranged at the top of the pressing plate, wherein a floating lower support pillar is arranged at the top of the support plate, and the lower support pillar can be flush with the upper surface of the support plate through shrinkage; the bottom of clamp plate is provided with unsteady last fore-set, go up the fore-set and can be parallel and level with the lower surface of clamp plate through the shrink.

When the battery cell preheating device is used, the battery cell is firstly placed on the lower support pillar of the support plate; then the Z-axis module drives the pressing plate to move downwards primarily, so that an upper top column of the pressing plate contacts with the upper surface of the battery cell first, then the Z-axis module moves downwards continuously, a lower top column of the supporting plate is contracted to be flush with the upper surface of the supporting plate, an upper top column of the pressing plate is contracted to be flush with the lower surface of the pressing plate, the battery cell is clamped by the supporting plate and the pressing plate, and the heating pipe preheats the battery cell; and finally, after the cell is preheated, the Z-axis module moves upwards to return to the original position, and the cell is taken out to enter the next hot-pressing procedure. When long-time faults occur in the hot press and the rear-end equipment of the next hot pressing procedure, after the electric core is preheated, the Z-axis module moves upwards to reach the position where the lower ejection column of the supporting plate bounces and the upper ejection column of the pressing plate contacts the upper surface of the electric core, at the moment, the electric core is clamped by the lower ejection column of the supporting plate and the upper ejection column of the pressing plate, heat of the heating pipe is used for preserving heat of the electric core, after the faults are eliminated, the Z-axis module moves upwards again to return to the original position, and the electric core is taken out and enters the next hot pressing procedure.

Further, the lower support pillar comprises a lower spring and a lower support block, a plurality of mounting grooves are uniformly formed in the supporting plate, one end of the lower spring is fixedly connected with the groove bottoms of the mounting grooves, and the other end of the lower spring is fixedly connected with the bottom of the lower support block. The lower support pillar is simple in structure and convenient to detach, maintain and replace.

Furthermore, the bottom of the lower ejector block is provided with a lower connecting groove, and the other end of the lower spring is fixedly connected with the bottom of the lower connecting groove. The lower connecting groove of the lower ejector block enables the lower spring to be more firmly connected with the lower ejector block.

Furthermore, the upper ejection column comprises a spring support block, an upper spring and an upper ejection block, a plurality of installation through holes are uniformly formed in the pressing plate, the spring support block is arranged on the upper portion of each installation through hole and fixedly connected with the installation through holes, one end of the upper spring is fixedly connected with the bottom of the spring support block, and the other end of the upper spring is fixedly connected with the top of the upper ejection block. The upper ejection column is simple in structure and convenient to detach, maintain and replace.

Still further, the spring support block includes a T-shaped fastener.

Furthermore, the top of the upper ejector block is provided with an upper connecting groove, and the other end of the upper spring is fixedly connected with the bottom of the upper connecting groove; the side of the upper part of the upper ejector block is provided with a mounting boss, and the inner wall of the lower part of the mounting through hole of the pressing plate is provided with a limiting boss matched with the mounting boss. The upper spring is more firmly connected with the upper top block due to the arrangement of the upper connecting groove of the upper top block; in addition, the upper ejector block mounting boss is matched with the mounting through hole limiting boss, so that the upper ejector block cannot be suspended in the mounting through hole of the pressing plate through the upper spring due to self weight, shaking is generated, and the service life of the upper spring is shortened; due to the design of the spring supporting block of the upper ejection column, the upper ejection block can be detached from the top of the pressing plate for maintenance and replacement.

Furthermore, the bottom of the upper ejection column is provided with an upper rubber coating layer for preventing the electric core from being heated and pressed to generate an indentation, and the top of the lower ejection column is provided with a lower rubber coating layer for preventing the electric core from being heated and pressed to generate the indentation.

Further, the upper surface of the support plate and the lower surface of the press plate are provided with an anti-sticking coating. And a pressure sensor is arranged between the pressure plate and the Z-axis module.

Compared with the prior art, the utility model has the advantages that the lower floating ejection post is arranged on the support plate and the upper floating ejection post is arranged on the pressing plate, so that the battery cell can be clamped between the support plate and the pressing plate by the lower ejection post and the upper ejection post after preheating is finished, and the heat of the heating pipe is utilized to keep the temperature of the battery cell; in addition, the arrangement of the floating structure can avoid the cell to take and place the material clamp. The lower supporting pillar and the upper supporting pillar can be set into a floating mechanism with a spring matched with the supporting block, the structure is simple, and the dismounting, the maintenance and the replacement are very convenient. The cell preheating device of the utility model can avoid the problem of cell temperature reduction caused by long-time faults of the hot press and the back-end equipment, and ensure the production efficiency and productivity; the lower top column and the upper top column of the cell preheating device structure are simple in structure and small in occupied space; and in the in-service use, can reform transform in original traditional electric core preheating device and increase down fore-set and last fore-set structure, make traditional electric core preheating device have electric core heat preservation function, assembly easy operation, the practicality is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an enlarged view of a and B in fig. 2.

Wherein: 1-a support plate; 1.1-mounting a groove; 2-lower top column; 2.1-lower spring; 2.2-lower top block; 2.21-lower connecting groove; 2.3-lower rubber coating layer; 3-heating the tube; 4, pressing a plate; 4.1-installing through holes; 4.11-limiting boss; 5-Z axis module; 6-mounting a top pillar; 6.1-spring support block; 6.2-spring up; 6.3-upper top block; 6.31-upper connecting groove; 6.32-mounting the boss; 6.4-coating a rubber layer; and 7-electric core.

Detailed Description

The invention will be further described in detail with reference to the drawings and the following detailed description, which are provided for clear understanding of the invention and are not intended to limit the invention. The positional relationships described in the embodiments are all in accordance with the drawings.

As shown in fig. 1, the cell preheating device is integrally composed of a support plate 1, a pressing plate 4 and a Z-axis module 5; the inside of backup pad 1 and clamp plate 4 evenly is provided with many heating pipes 3, and the top of backup pad 1 is provided with down fore-set 2, and the bottom of clamp plate 4 is provided with fore-set 6, and electric core 7 can be cliied by fore-set 2 and last fore-set 6 down to make electric core 7 arrange in between backup pad 1 and the clamp plate 4, Z axle module 5 sets up in the top of clamp plate 4 for reciprocating of control clamp plate 4.

As shown in fig. 2 and 3, a plurality of mounting grooves 1.1 are uniformly formed in the support plate 1, and the positions of the mounting grooves 1.1 are located between adjacent heating pipes 3; the lower top column 2 consists of a lower spring 2.1 and a lower top block 2.2; in this embodiment, the lower top block 2.2 is a cylindrical structure, the bottom of the lower top block 2.2 is provided with a lower connecting groove 2.21, one end of the lower spring 2.1 is fixedly connected with the groove bottom of the mounting groove 1.1, and the other end of the lower spring 2.1 is fixedly connected with the groove bottom of the lower connecting groove 2.21. Thus, the lower jack prop 2 can float in the mounting groove 1.1 of the support plate 1, and the upper surface of the lower jack block 2.2 can be flush with the upper surface of the support plate 1 by the compression of the lower spring 2.1.

As shown in fig. 2 and 3, a plurality of mounting through holes 4.1 are uniformly arranged in the pressure plate 4, and the positions of the mounting through holes 4.1 are located between the adjacent heating pipes 3; the upper ejection column 6 consists of a spring supporting block 6.1, an upper spring 6.2 and an upper ejection block 6.3, and the spring supporting block 6.1 can be a T-shaped fastener; in this embodiment, the spring support block 6.1 is a T-shaped nut, such as a T-shaped nut, the upper top block 6.3 is a cylindrical structure, the top of the upper top block 6.3 is provided with an upper connecting groove 6.31, the side surface of the upper portion of the upper top block 6.3 is provided with a mounting boss 6.32, the upper portion of the mounting through hole 4.1 of the press plate 4 is provided with a thread matched with the T-shaped nut, and the inner wall of the lower portion of the mounting through hole 4.1 is provided with a limit boss 4.11 matched with the mounting boss 6.32; one end of the upper spring 6.2 is fixedly connected with the bottom of the spring supporting block 6.1, namely the bottom of the T-shaped nut, and the other end of the upper spring 6.2 is fixedly connected with the bottom of the upper connecting groove 6.31 of the upper top block 6.3. The upper ejection column 6 can be integrally placed into the mounting through hole 4.1 from the upper part of the mounting through hole 4.1 to be assembled with the pressing plate 4, and the upper ejection block 6.3 is matched with the limiting boss 4.11 through the mounting boss 6.32, so that the upper ejection block cannot fall out of the mounting through hole 4.1 due to dead weight of the upper ejection block and the service life of the upper spring 6.2 is also guaranteed. Thus, the upper jack 6 can float in the mounting through hole 4.1 of the pressure plate 4, and the lower surface of the upper jack 6.3 can be flush with the lower surface of the pressure plate 4 by the compression of the upper spring 6.2.

The lower support pillar 2 and the upper support pillar 6 are arranged by the structure, so that the lower support pillar and the upper support pillar are easy to disassemble, maintain and replace. In addition, the top of the lower ejector block 2.2 of the lower ejector column 2 is provided with a lower rubber coating layer 2.3 for avoiding indentation caused by heating and pressing of the battery core, and the bottom of the upper ejector block 6.3 of the upper ejector column 6 is provided with an upper rubber coating layer 6.4 for avoiding indentation caused by heating and pressing of the battery core.

In addition, the upper surface of the supporting plate 1 and the lower surface of the pressing plate 4 are provided with anti-sticking coatings, the anti-sticking coatings can be made of teflon, highland barley or ceramic powder materials by plating, and of course, teflon paper, highland barley paper or business card paper can also be directly pasted on the upper surface of the supporting plate 1 and the lower surface of the pressing plate 4 to serve as the anti-sticking coatings.

If the cell 7 has a pressure requirement in the preheating process, a pressure sensor can be arranged between the pressing plate 4 and the Z-axis module 5 to monitor the pressure on the cell 7 in real time.

The heating pipe 3 of the cell preheating device can also be a pulse heating strip.

The utility model discloses in, the floating structure's of fore-set 2 and last fore-set 6 setting down except can supporting the realization heat preservation to electric core, can also dodge electric core and get and put the collet.

When the battery cell preheating device is used, firstly, the battery cell 7 is placed on the lower support pillar 2 of the support plate 1 through the taking and placing clamp; then the Z-axis module 5 drives the pressing plate 4 to move downwards initially, so that the upper top column 6 of the pressing plate 4 contacts the upper surface of the battery cell firstly, then the Z-axis module 5 moves downwards continuously, the lower top column 2 of the supporting plate 1 is contracted to be flush with the upper surface of the supporting plate 1, the upper top column 6 of the pressing plate 4 is contracted to be flush with the lower surface of the pressing plate 4, the battery cell 7 is clamped by the supporting plate 1 and the pressing plate 4, and the heating pipe 3 preheats the battery cell 7; finally, after the electrical core 7 is preheated, the Z-axis module 5 moves upwards to return to the original position, and the electrical core 7 is taken out to enter the next hot-pressing procedure. When long-time trouble appears in hot press and back end equipment of next hot pressing process, after electric core 7 preheats and finishes, the lower fore-set 2 that Z axle module 5 upwards moved and reached backup pad 1 upsets and the last fore-set 6 of clamp plate 4 contacts the position of the upper surface of electric core can, at this moment, electric core is cliied with the last fore-set 6 of lower fore-set 2 of backup pad 1 and clamp plate 4, utilize the heat of heating pipe 3 to keep warm to electric core, after the troubleshooting, normal position is got back to in Z axle module 5 rebound again, take out electric core 7 and get into next hot pressing process.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings and specific examples, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention is within the scope of the present invention, and can be modified to various simple modifications, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. The utility model provides a can heat retaining electric core preheating device, includes inside backup pad (1) that is provided with heating pipe (3), inside clamp plate (4) that are provided with heating pipe (3) and Z axle module (5) of setting at clamp plate (4) top, its characterized in that: the top of the supporting plate (1) is provided with a floating lower support pillar (2), and the lower support pillar (2) can be flush with the upper surface of the supporting plate (1) through contraction; the bottom of clamp plate (4) is provided with unsteady last fore-set (6), go up fore-set (6) through the shrink can with the lower surface parallel and level of clamp plate (4).

2. The device of claim 1, wherein the cell preheating device comprises: the lower support pillar (2) comprises a lower spring (2.1) and a lower top block (2.2), a plurality of mounting grooves (1.1) are uniformly formed in the supporting plate (1), one end of the lower spring (2.1) is fixedly connected with the groove bottom of the mounting grooves (1.1), and the other end of the lower spring (2.1) is fixedly connected with the bottom of the lower top block (2.2).

3. The device for preheating the battery cell capable of preserving heat according to claim 2, characterized in that: the bottom of the lower ejector block (2.2) is provided with a lower connecting groove (2.21), and the other end of the lower spring (2.1) is fixedly connected with the bottom of the lower connecting groove (2.21).

4. The device for preheating the battery cell capable of preserving heat according to claim 1, characterized in that: go up fore-set (6) including spring support piece (6.1), go up spring (6.2) and go up fore-set (6.3), evenly be provided with a plurality of installation through-holes (4.1) in clamp plate (4), spring support piece (6.1) set up in the upper portion of installation through-hole (4.1) and with installation through-hole (4.1) fixed connection, the one end of going up spring (6.2) and the bottom fixed connection of spring support piece (6.1), the other end of going up spring (6.2) and the top fixed connection of last fore-set (6.3).

5. The device of claim 4, wherein the cell preheating device comprises: the spring support block (6.1) comprises a T-shaped fastener.

6. The device of claim 5 for preheating the cells capable of preserving heat, wherein: an upper connecting groove (6.31) is formed in the top of the upper ejector block (6.3), and the other end of the upper spring (6.2) is fixedly connected with the bottom of the upper connecting groove (6.31).

7. The device of claim 6, wherein the cell preheating device comprises: the side surface of the upper part of the upper ejector block (6.3) is provided with a mounting boss (6.32), and the inner wall of the lower part of the mounting through hole (4.1) of the pressing plate (4) is provided with a limiting boss (4.11) matched with the mounting boss (6.32).

8. The device for preheating the battery cell capable of preserving heat according to any one of claims 1 to 7, wherein: the bottom of going up fore-set (6) is provided with and is used for avoiding electric core heating pressurized to produce last rubber coating (6.4) of indentation, the top of fore-set (2) is provided with down rubber coating (2.3) that are used for avoiding electric core heating pressurized to produce the indentation down.

9. The device of claim 8, wherein the cell preheating device comprises: and anti-sticking coatings are arranged on the upper surface of the support plate (1) and the lower surface of the press plate (4).

10. The device for preheating the battery cell capable of preserving heat according to claim 9, characterized in that: and a pressure sensor is arranged between the pressure plate (4) and the Z-axis module (5).