Battery cell infiltration device

Abstract

The invention relates to a battery cell infiltration device, which comprises a bearing support and a heating assembly, the bearing support is provided with a plurality of placing plates, the first plate surface of each placing plate is provided with a plurality of battery cell installation positions, the battery cell installation positions are used for placing battery cells, and the heating assembly is connected to the placing plates. And the heating device is used for heating the battery cell in the battery cell mounting position. According to the battery cell infiltration device disclosed by the invention, the heating assembly is directly arranged on the placement plate, when the battery cell infiltration device is used, the heating assembly can directly heat the placement plate, and compared with a traditional battery cell infiltration device which is heated in a convective heat transfer manner, the battery cell infiltration device has higher heat transfer efficiency, so that the waste of energy can be reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery cell processing, and in particular, to a battery cell impregnation device. Background Art

[0002] During the manufacturing process, the battery cell needs to be injected with electrolyte through the injection operation. After the injection is completed, it needs to be soaked at high temperature so that the electrolyte can penetrate into the internal pole group. In the related technology, the battery cell soaking device mainly heats the battery cell through the air conditioning system indoors to improve the soaking efficiency. However, this heating method is convection heat exchange, the energy transmission efficiency is low, and the uniformity of the battery cell temperature control is difficult to ensure. In addition, it will generate great heat loss indoors, that is, the efficiency of battery cell soaking cannot be guaranteed, and a lot of energy will be wasted. Summary of the invention

[0003] The purpose of the present disclosure is to provide a battery cell impregnation device, which has a high efficiency in heating the battery cell and can save energy.

[0004] In order to achieve the above object, the present disclosure provides a battery cell wetting device, comprising: A load-bearing bracket, wherein a plurality of placement plates are disposed on the load-bearing bracket, a plurality of battery cell installation positions are disposed on a first plate surface of the placement plates, and the battery cell installation positions are used to place battery cells; A heating component is connected to the placement plate and is used to heat the battery cell in the battery cell installation position.

[0005] Optionally, the heating assembly includes a first heating film covering the first surface of the placement plate, the battery cell mounting position is formed on the first heating film, and the first heating film is configured to directly contact the bottom surface of the battery cell.

[0006] Optionally, the heating assembly further includes a plurality of first limiting members, which are arranged at intervals on the first heating film, and a gap between two adjacent first limiting members forms the battery cell installation position, and the first limiting members are used to limit the movement of the battery cell in the battery cell installation position.

[0007] Optionally, the heating assembly further includes a second heating film covering a second plate surface of the placement plate disposed opposite to the first plate surface, and the second heating film is configured to contact with a top surface of the battery cell.

[0008] Optionally, the first heating film and the second heating film are both made of compressible material.

[0009] Optionally, a heat insulation layer is provided between the first heating film and the first board surface, and between the second heating film and the second board surface.

[0010] Optionally, the load-bearing bracket further includes a heat-insulating shell with an opening on one side, and the plurality of placement plates extend in a horizontal direction, and the plurality of placement plates are arranged in parallel and at intervals in the heat-insulating shell.

[0011] Optionally, a rotating assembly is further included, and the rotating assembly is used to drive the supporting bracket to rotate.

[0012] Optionally, the rotating assembly is used to drive the supporting bracket to rotate until the battery cell in the battery cell installation position is inverted.

[0013] Optionally, a second limiting member is provided on the placement plate, and the second limiting member is used to limit the battery cell from leaving the battery cell installation position during the rotation process.

[0014] Optionally, the rotating assembly includes a sleeve and an annular track, the sleeve is used to place the supporting bracket, the annular track is sleeved outside the sleeve, the central axis of the sleeve coincides with the center of the annular track, and the sleeve can rotate along its own axis relative to the annular track.

[0015] Optionally, a plurality of the annular tracks are provided, which are spaced apart along the extension direction of the sleeve, and the plurality of annular tracks are fixedly connected by connecting beams, and the bottoms are connected to the base.

[0016] Optionally, the rotating assembly further comprises a power piece, which is detachably connected to the supporting bracket and is used for driving the sleeve to rotate along its own axis relative to the annular track through the supporting bracket until the battery cell is inverted.

[0017] Optionally, a plurality of balls are arranged on the inner wall of the sleeve.

[0018] Through the above technical scheme, the advantage of the battery cell impregnation device disclosed in the present invention is that the battery cell impregnation device disclosed in the present invention directly sets the heating component on the placement plate. When in use, the heating component can directly heat the placement plate. Compared with the traditional battery cell impregnation device that heats by convection heat exchange, it has higher heat transfer efficiency, thereby reducing energy waste.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a schematic structural diagram of a battery cell wetting device provided in an exemplary embodiment of the present disclosure; Figure 2is a schematic structural diagram of a rotating assembly in a battery cell wetting device provided in an exemplary embodiment of the present disclosure; Figure 3 is a schematic structural diagram of a supporting bracket in a cell impregnation device provided in an exemplary embodiment of the present disclosure; Figure 4 yes Figure 3 A partial enlarged view of Figure 5 is a schematic structural diagram of a placement plate in a cell wetting device provided in an exemplary embodiment of the present disclosure; Figure 6 yes Figure 5 A partial enlarged view of .

[0021] Description of Reference Numerals 1- load-bearing bracket; 11- placement plate; 111- second position-limiting member; 12- battery cell installation position; 13- insulation shell; 2-heating assembly; 21-first heating film; 22-second heating film; 23-first stopper; 24-insulating layer; 3-rotating assembly; 31-sleeve; 311-ball; 32-annular track; 33-connecting beam; 34-base; 35-power part. DETAILED DESCRIPTION

[0022] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0023] In the present disclosure, unless otherwise stated, the directional words used, such as "up, down, high, low, top, bottom", generally refer to the orientation of the corresponding component or structure in the direction of gravity. "Inside and outside" refer to the inside and outside of the outline of the corresponding component. In addition, it should be noted that the terms used, such as "first, second", etc., are intended to distinguish one element from another and do not have order and importance. In addition, in the description with reference to the accompanying drawings, the same mark in different drawings represents the same element. The above definitions are only used to explain and illustrate the present disclosure and should not be construed as limitations on the present disclosure.

[0024] The present disclosure relates to a battery cell soaking device, which can heat the battery cell more efficiently, thereby saving energy and improving the soaking effect. Figure 1 and Figure 3The battery cell impregnation device disclosed in the present invention includes a supporting bracket 1 and a heating component 2. A plurality of placement plates 11 are arranged in the supporting bracket 1. The plurality of placement plates 11 are arranged at intervals. The intervals are used to place battery cells. A plurality of battery cell mounting positions 2 are arranged on the first plate surface of the placement plates 11. When the battery cell impregnation device is used, the battery cells can be placed on the battery cell mounting positions 12 for heating. The heating component 2 is connected to the placement plates 11 and can heat the battery cell mounting positions 12. When the battery cell impregnation device disclosed in the present invention is used, the heating component 12 can directly heat the placement plates 11. Compared with the traditional battery cell impregnation device that heats by convection heat exchange, the heat transfer efficiency is better, thereby reducing energy waste.

[0025] In one embodiment of the present disclosure, see Figure 3 and Figure 4 The heating assembly 2 includes a first heating film 21, which covers the first plate surface of the placement plate 11. The battery cell installation position 12 is also formed on the first heating film 21, so that the bottom surface of the battery cell placed in the battery cell installation position 12 can directly contact the first heating film 21. By providing the first heating film 21, when heating the battery cell, the bottom surface of the battery cell can be directly heated by the first heating film 21, thereby making the maximum use of the heat generated by the first heating film 21 to improve the energy utilization rate and the heating efficiency of the battery cell.

[0026] In one embodiment of the present disclosure, see Figure 3 and Figure 4 The heating component 2 also includes a plurality of first limiting members 23, which are arranged at intervals on the first heating film 21, and the gap between two adjacent first limiting members 23 forms a battery cell installation position 12, so that the movement of the battery cell is limited after the battery cell is placed in the battery cell installation position 12. In this embodiment, the first limiting member 23 can be a strip-shaped body arranged on the first heating film 21, and a rectangular battery cell installation position 12 is formed between the strip-shaped bodies arranged at intervals. The battery cell and the battery cell installation position 12 are adapted to be a rectangular box body in shape. After being placed in the battery cell installation position 12, both sides of the battery cell can be limited by the strip-shaped body to prevent the battery cell from moving left and right and affecting the heating effect. Of course, in other embodiments, the shapes of the first limiting member 23 and the battery cell can also be other types, which can be determined according to actual conditions, and the present disclosure does not limit this.

[0027] In one embodiment of the present disclosure, see Figure 5 and Figure 6The heating assembly 2 further includes a second heating film 22 covering the second plate surface of the placement plate 11 opposite to the first plate surface, and the second heating film 22 is in contact with the top surface of the battery cell. By providing the second heating film 22, when heating the battery cell, the top and bottom surfaces of the battery cell can be heated simultaneously by the first heating film 21 and the second heating film 22, thereby improving the heating efficiency of the battery cell and being able to heat the battery cell more evenly.

[0028] In one embodiment of the present disclosure, the first heating film 21 and the second heating film 22 are both made of compressible materials. In this way, the spacing between the first heating film 21 and the second heating film 22 can be set to be slightly smaller than the thickness of the battery cell, so that after the battery cell is placed in the battery cell installation position 12, the first heating film 21 and the second heating film 22 can be squeezed, thereby making the battery cell and the heating film more closely contacted, which can further limit the movement of the battery cell on the heating film on the other hand, and also improve the heating effect of the heating film on the battery cell.

[0029] In one embodiment of the present disclosure, see Figure 4 and Figure 6 A heat insulating layer 24 is provided between the first heating film 21 and the first board surface of the placement board 11, and between the second heating film 22 and the second board surface of the placement board 11. By providing the heat insulating layer 24, the thermal resistance between the heating film and the placement board 11 can be increased, and the heat generated by the heating film can be prevented from being transferred to the placement board 11, so as to increase the heat transfer efficiency between the heating film and the battery cell.

[0030] In one embodiment of the present disclosure, see Figure 3 and Figure 4 The support bracket 1 further includes a heat preservation shell 13 with an opening on one side, and a plurality of placement plates 11 can extend in the horizontal direction and be arranged in parallel with each other in the vertical direction in the heat preservation shell 13. When placing the battery cells, the battery cells can be placed on different battery cell installation positions 12 through the openings on the heat preservation shell 13. By setting the heat preservation shell 13, the heat loss generated by the heating component 2 can be avoided, so that the inside of the heat preservation shell 13 can continuously maintain a high temperature to heat the battery cells, thereby increasing the efficiency of heating the battery cells.

[0031] In one embodiment of the present disclosure, see Figure 1 and Figure 2, the battery cell infiltration device disclosed in the present invention further includes a rotating assembly 3. Since there is a problem of electrolyte sedimentation in the battery cell during the heating process, the electrolyte will cause insufficient infiltration of the upper part of the battery cell after sedimentation. By setting the rotating assembly 3, the supporting bracket 1 can be driven to rotate, so that the battery cell in the supporting bracket 1 changes position, and the electrolyte flows in the battery cell to avoid the sedimentation problem. In some embodiments of the present disclosure, the rotating assembly 3 will drive the supporting bracket 1 to rotate until the battery cell therein is inverted, so that the electrolyte originally at the bottom of the battery cell in the battery cell flows to the top of the original battery cell under the action of gravity, so that the battery cell that has been rotated can be fully infiltrated with the electrode liquid, and the problem of the upper part of the battery cell not being infiltrated due to the sedimentation of the electrolyte will not occur.

[0032] In one embodiment of the present disclosure, see Figure 1 and Figure 2 , a second stopper 111 is also provided on the placement plate 11. The second stopper 111 can be provided to limit the movement of the battery cell during the process of the rotating assembly 3 driving the supporting bracket 1 to rotate, so as to prevent the battery cell from being separated from the battery cell installation position 12. The position and number of the second stopper 111 can be determined according to the direction and angle of rotation of the supporting bracket 1 driven by the rotating assembly 3. For example, in some embodiments of the present disclosure, the rotating assembly 3 drives the supporting bracket 1 to rotate 180° along its central axis to rotate the battery cell therein to invert. The placement plate 11 is rectangular. At this time, the second stopper 111 can be a strip-shaped body with the same length as the placement plate 11, and is placed at the end of the placement plate 11, so as to prevent the battery cell from falling from the bottom of the placement plate 11 when the rotating assembly 3 drives the supporting bracket 1 to rotate. Of course, in other embodiments, the second stopper 111 can also be of other types, for example, the second stopper 111 is provided on both the front and rear sides of the placement plate 11. The specific method can be determined according to the actual situation, and the present disclosure does not limit this.

[0033] In one embodiment of the present disclosure, see Figure 1 and Figure 2 , the rotating assembly 3 includes a sleeve 31 and an annular track 32. The sleeve 31 is used to place the load-bearing bracket 1. When placing it, the load-bearing bracket 1 needs to be pushed into the sleeve 31 from the opening on one side of the sleeve 31. The annular track 32 is sleeved outside the sleeve 31, and the central axis of the sleeve 31 coincides with the central axis of the annular track 32, and can rotate along its own axis relative to the annular track 32, so that the battery cell on the load-bearing bracket 1 in the sleeve 31 is inverted after rotation. In some embodiments of the present disclosure, the load-bearing bracket 1 is a rectangular body, the sleeve 31 is a rectangular shell, and pulleys are provided at the four corners of the sleeve 31, and the sleeve 31 can rotate on the annular track 32 through the pulley. Of course, in other embodiments, the connection method between the sleeve 31 and the load-bearing bracket 1 and the annular track 32 can also be of other types, which will not be described in detail here.

[0034] In one embodiment of the present disclosure, see Figure 1 and Figure 2 , a plurality of annular tracks 32 are provided, which are arranged at intervals along the extension direction of the sleeve 31, and the plurality of annular tracks 32 are fixedly connected by connecting beams 33, and the bottom is fixedly connected to the base 34. By arranging a plurality of annular tracks 32 at intervals in the extension direction of the sleeve 31, and each annular track 32 is connected to the sleeve 31, more support can be provided for the sleeve 31, the stability of the sleeve 31 during the rotation process is ensured, and the sleeve 31 is prevented from falling off the annular track 32 during the rotation process, and the connecting beam 33 can ensure that support is provided between the annular tracks 32, so as to ensure the stability of the annular track 32 on the base 34.

[0035] In one embodiment of the present disclosure, see Figure 1 and Figure 2 The rotating assembly 3 further includes a power piece 35, which is detachably connected to the supporting bracket 1, so as to drive the sleeve 31 to rotate along its own axis relative to the annular track 32 by driving the supporting bracket 1, and rotate until the battery cell in the supporting bracket 1 is inverted. The power piece 35 is detachably connected to the supporting bracket 1, so that it can be assembled when only the supporting bracket 1 needs to be rotated, and it can be not assembled when it does not need to be rotated, so as to avoid the power piece 35 affecting the transportation of the annular track 32 and the base 34. Of course, in other embodiments, the power piece 35 may not be provided, and the sleeve 31 is rotated by the staff, which will not be described in detail here.

[0036] In one embodiment of the present disclosure, see Figure 1 and Figure 2 , a plurality of balls 311 are arranged on the inner wall of the sleeve 31. The balls 311 can assist the staff in placing the load-bearing bracket 1 into the sleeve 31. When placing, the load-bearing bracket 1 will contact the balls 311 on the inner wall of the sleeve 31. As the load-bearing bracket 1 continues to move into the sleeve 31, the balls 311 will also rotate synchronously, so as to reduce the force required by the staff to place the load-bearing bracket 1 into the sleeve 31.

[0037] When the battery cell impregnation device disclosed in the present invention is used, the battery cells need to be installed first, and multiple battery cells are placed from the opening of the insulation shell 13 to the multiple battery cell installation positions 12 on the placement plate 11. After that, the supporting bracket 1 can be placed in the sleeve 31 and the power component 35 can be installed on the supporting bracket 1. Finally, the first heating film 21 and the second heating film 22 are started to heat the battery cells. During the heating process, in order to prevent electrolyte sedimentation in the battery cells, the power component 35 can also be started to drive the supporting bracket 1 to rotate, so that the battery cells in the supporting bracket 1 can be rotated to an inverted position.

[0038] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0040] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery cell wetting device, characterized in that: include: A load-bearing bracket, wherein a plurality of placement plates are disposed on the load-bearing bracket, a plurality of battery cell installation positions are disposed on a first plate surface of the placement plates, and the battery cell installation positions are used to place battery cells; A heating component is connected to the placement plate and is used to heat the battery cell in the battery cell installation position.

2. The battery cell wetting device according to claim 1, characterized in that: The heating assembly includes a first heating film covering the first surface of the placement plate, the battery cell mounting position is formed on the first heating film, and the first heating film is configured to directly contact the bottom surface of the battery cell.

3. The battery cell wetting device according to claim 2, characterized in that: The heating assembly also includes a plurality of first limiting members, which are arranged at intervals on the first heating film, and a gap between two adjacent first limiting members forms the battery cell installation position, and the first limiting members are used to limit the movement of the battery cell in the battery cell installation position.

4. The battery cell wetting device according to claim 2, characterized in that: The heating assembly further includes a second heating film covering a second plate surface of the placement plate that is disposed opposite to the first plate surface, and the second heating film is configured to contact the top surface of the battery core.

5. The battery cell wetting device according to claim 4, characterized in that: The first heating film and the second heating film are both made of compressible material.

6. The battery cell wetting device according to claim 4, characterized in that: A heat insulation layer is provided between the first heating film and the first board surface, and between the second heating film and the second board surface.

7. The battery cell wetting device according to any one of claims 1 to 6, characterized in that: The load-bearing bracket further comprises a heat-insulating shell with an opening on one side, and the plurality of placement plates extend in a horizontal direction, and the plurality of placement plates are arranged in parallel and at intervals in the heat-insulating shell.

8. The battery cell wetting device according to claim 1, characterized in that: It also includes a rotating assembly, which is used to drive the supporting bracket to rotate.

9. The battery cell wetting device according to claim 8, characterized in that: The rotating assembly is used to drive the supporting bracket to rotate until the battery cell in the battery cell installation position is inverted.

10. The battery cell wetting device according to claim 8, characterized in that: The placement plate is provided with a second limiting member, and the second limiting member is used to limit the battery cell from being separated from the battery cell installation position during the rotation process.

11. The battery cell wetting device according to claim 8, characterized in that: The rotating assembly includes a sleeve and an annular track. The sleeve is used to place the supporting bracket. The annular track is sleeved outside the sleeve. The central axis of the sleeve coincides with the center of the annular track and can rotate along its own axis relative to the annular track.

12. The battery cell wetting device according to claim 11, characterized in that: The annular tracks are provided in plurality and are arranged at intervals along the extension direction of the sleeve. The plurality of annular tracks are fixedly connected by connecting beams, and the bottoms are connected to the base.

13. The battery cell wetting device according to claim 11, characterized in that: The rotating assembly further comprises a power member, which is detachably connected to the bearing bracket and is used for driving the sleeve to rotate along its own axis relative to the annular track through the bearing bracket until the battery cell is inverted.

14. The battery cell wetting device according to claim 11, characterized in that: A plurality of balls are arranged on the inner wall of the sleeve.

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