Cooling module for battery cell processing

Abstract

The utility model discloses a cooling module for battery cell processing. The cooling module comprises a placing tray and a plurality of groups of battery cells, the cooling plate is used for cooling and limiting each group of battery cells; an inner groove for limiting the cooling plate is formed in the placement tray, and a plurality of groups of protection pads for holding and positioning the cooling plate are mounted on the inner wall of the inner groove at equal intervals in an attached and adhered manner; a plurality of groups of PC joint strips for limiting battery cells are correspondingly mounted on two sides of the upper surface of the cooling plate, a plurality of groups of battery cells are mounted on the upper surfaces of the PC joint strips at equal intervals, and every two groups of adjacent battery cells are mounted in opposite directions. The cooling plate is bolted with the protection pad through the limiting plate, so that the use stability of the cooling plate is ensured, the shaking of the battery cells in the later processing and use process is avoided, and the heights of the groups of PC joint strips are consistent, so that the top surfaces of the battery cells are consistent in the placement process, the welding stability of the bridging aluminum row is ensured, and the production efficiency of the small module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a cooling module used in battery core processing. Background Art

[0002] With the rapid development of the energy storage market, the demand for soft-pack batteries has increased. However, due to the characteristics of soft-pack batteries, they need to be supported and fixed by a module frame. As the production scale increases, the existing technology still has the following problems in the processing of battery cells:

[0003] 1. In the liquid cooling module, the battery cells in the small module are directly placed on the liquid cooling plate. However, the liquid cooling plate is a metal part. Although it is glued, bubbles are prone to appear. Moreover, the glue is soft when it is first applied, which will cause the lower end surface of the battery cell to directly contact the liquid cooling plate, resulting in the module failing to withstand the pressure.

[0004] 2. To solve the problem of pressure resistance, the only way is to increase the amount of thermal conductive glue, which leads to an increase in product cost;

[0005] 3. The height of the small modules is inconsistent, and the aluminum bars between the upper modules and the modules are difficult to weld;

[0006] 4. Liquid cooling modules that fail to withstand the pressure will be directly scrapped or reworked, which will also increase the cost of the module. Utility Model Content

[0007] The utility model aims to provide a cooling module for battery cell processing. A PC sheet is attached to a liquid cooling plate according to the position of the battery cell. When the battery cell is placed, it is just stuck on the corner of the battery cell without affecting the heat dissipation of the battery cell. The PC sheet is in a long strip shape and is adhered to the plane of the liquid cooling plate with double-sided tape. The processing is simple to solve the technical problems mentioned in the background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cooling module for battery cell processing, comprising a placement tray and several groups of battery cells; and a limiting cooling plate for cooling each group of the battery cells; an inner groove for limiting the cooling plate is opened inside the placement tray, and several groups of protective pads for holding and positioning the cooling plate are equidistantly installed on the inner wall of the inner groove; a cooling plate is fitted and snap-fitted inside the inner groove, and several groups of PC strips are equidistantly installed on the upper surface of the cooling plate; several groups of battery cells are equidistantly installed on the upper surface of the PC strip, and each front and rear two adjacent groups of battery cells are installed in opposite directions.

[0009] Preferably, the bottom edge of the inner wall of the inner groove and the four inflection points of the inner wall are all arc-shaped, and the bottom edge of the inner wall of the inner groove is opened at an angle of 35°.

[0010] Preferably, the four inflection points of the inner wall of the inner groove are opened at an angle of 75°, and the lower surface of the protection pad is adhered with double-sided tape, and the protection pad is adhered to the inside of the inner groove by the double-sided tape.

[0011] Preferably, a connecting plate is fitted on the top of the placement tray, and a plurality of through holes are equidistantly provided on four sides of the connecting plate.

[0012] Preferably, the bottom surface of the cooling plate is installed in contact with the upper surface of the protection pad, and the four sides of the bottom surface of the cooling plate corresponding to the inner wall of the inner groove are arranged as arc-shaped side edges.

[0013] Preferably, a plurality of groups of limit plates are installed on the front and rear sides of the cooling plate corresponding to the positions of the protection pads, and the limit plates are connected to the protection pads by bolts.

[0014] Preferably, the lower surface of the PC strip is adhered with double-sided tape, and the PC strip is adhered to the upper surface of the cooling plate by the double-sided tape.

[0015] Preferably, the spacing between the PC strips of each group is smaller than the length of the battery cell, and the bottom corners of the battery cells of each group are correspondingly inserted into the surface of the PC strips.

[0016] Preferably, two groups of poles are arranged on the top of each group of battery cells, and the positive and negative poles of the poles on the top surfaces of the front and rear adjacent groups of battery cells are in opposite positions.

[0017] Preferably, the width of the two outermost groups of PC strips on the upper surface of the cooling plate is half the width of the central groups of PC strips.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The arc surface on the inner wall of the inner groove cooperates with the arc side of the bottom surface of the cooling plate to improve the overall force-bearing capacity of the device. At the same time, the protective pad installed on the inner wall of the inner groove ensures that the cooling plate does not directly contact the inner wall of the inner groove, thereby improving the stability of the cooling plate. In addition, since the cooling plate is bolted to the protective pad through a limit plate, the stability of the cooling plate is ensured, and the shaking of the battery cell during later processing and use is avoided.

[0020] 2. The heights of each group of PC strips are consistent, so that the top surfaces of the battery cells are consistent during placement, to ensure the stability of the welding of the jumper aluminum bar and improve the production efficiency of small modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the installation structure of the wide PC sticker and the narrow PC sticker of the utility model;

[0024] Figure 4This is a schematic diagram of the battery cell placement structure of the utility model.

[0025] In the figure: 1. Placement tray; 2. Inner groove; 3. Protection pad; 4. Connecting plate; 5. Through hole; 6. Cooling plate; 7. Limiting plate; 8. Curved side; 9. PC strip; 10. Battery cell; 11. Pole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides: a cooling module for battery core processing, such as Figure 1-Figure 4 As shown, it includes a placement tray 1 and several groups of battery cells 11; and a limiting cooling plate 6 for cooling each group of battery cells 11; an inner groove 2 for limiting the cooling plate 6 is opened inside the placement tray 1, and several groups of protection pads 3 for holding and positioning the cooling plate 6 are equidistantly installed on the inner wall of the inner groove 2; a cooling plate 6 is fitted and snap-fitted inside the inner groove 2, and several groups of PC strips 9 are equidistantly installed on the upper surface of the cooling plate 6; several groups of battery cells 11 are equidistantly installed on the upper surface of the PC strips 9, and each front and rear two adjacent groups of battery cells 11 are installed in opposite directions.

[0028] Preferably, the bottom edge and four inflection points of the inner wall of the inner groove 2 are all arc-shaped, and the bottom edge of the inner wall of the inner groove 2 is opened at an angle of 35°. The arc surface of the inner wall of the inner groove 2 can protect the cooling plate 6, and the overall force strength of the placement tray 1 is improved through the design of the arc surface, which can better improve the stability of the device and ensure the stability of each group of battery cells 11 during the placement and processing process. The bottom edge of the inner wall of the inner groove is opened at an angle of 35°, which increases the force tension, and cooperates with the arc side edge 8 set at the bottom of the cooling plate 6 to improve the stability of the cooling plate 6.

[0029] In addition, the four inflection points of the inner wall of the inner groove 2 are opened at an angle of 75°, and the lower surface of the protection pad 3 is adhered with double-sided tape. The protection pad 3 is adhered to the inside of the inner groove 2 by the double-sided tape. The protection pad 3 is used to protect the cooling plate 6 to reduce direct hard contact between the cooling plate 6 and the tray 1.

[0030] Furthermore, a connecting plate 4 is installed on the top of the placement tray 1, and a plurality of through holes 5 are equidistantly provided on the four sides of the connecting plate 4. The connection plate 4 installed on the top of the placement tray 1 cooperates with the through hole 5 opened in the center of the connecting plate 4 to ensure the placement position of the device as a whole during use, while avoiding the loosening of the placement tray 1 during use, thereby improving the stability of the battery cell 11.

[0031] Furthermore, the bottom surface of the cooling plate 6 is installed in contact with the upper surface of the protective pad 3, and the four sides of the bottom surface of the cooling plate 6 are arranged as arc-shaped side edges 8 corresponding to the inner wall of the inner groove 2. The protective pad 3 installed in contact with the inner wall of the inner groove 2 can provide additional protection for the cooling plate 6, avoid contact and collision between the cooling plate 6 and the inner groove 2, improve the safety of the use of the cooling plate 6, and also avoid the force vibration of the battery cell 11 during use. At the same time, the arc-shaped side edges 8 at the bottom of the cooling plate 6 are in contact with the arc opened on the inner wall of the inner groove 2, further improving the stability of the use of the cooling plate 6.

[0032] It is worth mentioning that several groups of limit plates 7 are installed on the front and rear sides of the cooling plate 6 corresponding to the positions of each group of protection pads 3. The limit plates 7 are connected to the protection pads 3 by bolts. The limit plates 7 installed on the front and rear sides of the cooling plate 6 are docked with the protection pads 3, so that the cooling plate 6 and the protection pads 3 can fit stably, further improving the stability of the use of the cooling plate 6.

[0033] Specifically, double-sided tape is pasted on the lower surface of the PC strip 9, and the PC strip 9 is adhered to the upper surface of the cooling plate 6 through the double-sided tape. The PC strip 9 is bonded to the cooling plate 6 through the double-sided tape, and the PC strip 9 limits the battery cell 11 to ensure the high consistency of all battery cells 11 and ensure the smooth subsequent welding of the product.

[0034] In addition, the spacing between each group of PC strips 9 is smaller than the length of the battery cell 11, and the bottom corners of each group of battery cells 11 are correspondingly inserted into the surface of the wide PC strips 9 or the narrow PC strips 10. The PC strips 9 are attached to the liquid cooling plate 6 according to the position of the battery cell 11. When the battery cell 11 is placed, the PC strips 9 are just stuck on the corners of the battery cell 11, which does not affect the heat dissipation of the battery cell 11.

[0035] Preferably, two groups of poles 12 are arranged on the top of each group of battery cells 11, and the positive and negative positions of the poles 12 on the top surfaces of the front and rear adjacent groups of battery cells 11 are opposite. Since the front and rear groups of battery cells 11 are installed oppositely, the positive and negative poles of the poles 12 on the top of the battery cells 11 are installed alternately to ensure that the jumper aluminum bus can stably connect the groups of battery cells 11.

[0036] In addition, the width of the two outermost groups of PC strips 9 on the upper surface of the cooling plate 6 is half the width of the central groups of PC strips 9. Limiting the width of the two outermost groups of PC strips 9 can save space and reduce production costs.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling module for battery core processing, characterized in that: It comprises a placement tray (1) and a plurality of groups of battery cells (11); and A limited cooling plate (6) for cooling each group of the battery cells (11); The placement tray (1) is provided with an inner groove (2) for limiting the position of the cooling plate (6), and the inner wall of the inner groove (2) is equidistantly provided with a plurality of groups of protective pads (3) for holding and positioning the cooling plate (6); A cooling plate (6) is fitted and snap-fitted inside the inner groove (2), and a plurality of groups of PC strips (9) are equidistantly mounted on the upper surface of the cooling plate (6); A plurality of groups of battery cells (11) are installed at equal intervals on the upper surface of the PC strip (9), and each front and rear two adjacent groups of battery cells (11) are installed in opposite directions.

2. A cooling module for battery core processing according to claim 1, characterized in that: The bottom edge of the inner wall of the inner groove (2) and the four inflection points of the inner wall are all arc-shaped, and the bottom edge of the inner wall of the inner groove (2) is opened at an angle of 35°.

3. A cooling module for battery core processing according to claim 2, characterized in that: The four inflection points of the inner wall of the inner groove (2) are formed at an angle of 75°. Double-sided adhesive tape is adhered to the lower surface of the protection pad (3), and the protection pad (3) is adhered to the inside of the inner groove (2) by the double-sided adhesive tape.

4. A cooling module for battery core processing according to claim 3, characterized in that: A connecting plate (4) is fitted on the top of the placement tray (1), and a plurality of groups of through holes (5) are equidistantly provided on the four sides of the connecting plate (4).

5. The cooling module for battery core processing according to claim 1, characterized in that: The bottom surface of the cooling plate (6) is mounted in contact with the upper surface of the protective pad (3), and the four sides of the bottom surface of the cooling plate (6) are arranged as arc-shaped side edges (8) corresponding to the inner wall of the inner groove (2).

6. A cooling module for battery core processing according to claim 5, characterized in that: A plurality of groups of limiting plates (7) are installed at the front and rear sides of the cooling plate (6) corresponding to the positions of each group of protection pads (3), and the limiting plates (7) are connected to the protection pads (3) by bolts.

7. A cooling module for battery core processing according to claim 6, characterized in that: The lower surface of the PC strip (9) is adhered with double-sided adhesive tape, and the PC strip (9) is adhered to the upper surface of the cooling plate (6) by the double-sided adhesive tape.

8. A cooling module for battery core processing according to claim 7, characterized in that: The spacing between the PC strips (9) of each group is smaller than the length of the battery cell (11), and the bottom corners of the battery cells (11) of each group are correspondingly inserted into the surface of the PC strips (9).

9. A cooling module for battery core processing according to claim 8, characterized in that: Two groups of poles (12) are arranged at the top of each group of battery cells (11), and the positive and negative poles of the poles (12) on the top surfaces of the two adjacent groups of battery cells (11) are in opposite positions.

10. A cooling module for battery core processing according to claim 9, characterized in that: The width of the two outermost groups of PC strips (9) on the upper surface of the cooling plate (6) is half the width of the central groups of PC strips (9).

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