Diaphragm cooling device for battery diaphragm production

By using a U-shaped frame cooling device in battery separator production, the separator is brought close to the heat dissipation mechanism using a support structure, and the condensate is used for rapid cooling, which solves the problem of separator wrinkles caused by ventilation and cooling and improves the production quality of battery separators.

CN223790854UActive Publication Date: 2026-01-13KAITUO (SHENZHEN) TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423128645.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2026-01-13
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

In the current battery separator production process, ventilation and cooling can easily cause separator wrinkles, affecting the molding quality.

Method used

The diaphragm cooling device adopts a U-shaped frame structure. The support mechanism brings the diaphragm close to the heat dissipation mechanism, and the condensate carries away the heat for rapid cooling, avoiding diaphragm wrinkles.

Benefits of technology

This technology enables rapid cooling of the separator, improves production efficiency, avoids separator wrinkles, and enhances the molding quality of the battery separator.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223790854U_ABST
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Abstract

The utility model discloses a diaphragm cooling device for battery diaphragm production, which comprises a frame and a battery diaphragm, the frame is a U-shaped frame structure, two ends inside the frame are rotatably connected with first guide rollers, the inner bottom of the frame is provided with a support mechanism, the inner wall of the frame is fixedly provided with a cooling mechanism, and the cooling mechanism is connected with the battery diaphragm. The battery diaphragm enters the rack from the first guide roller on one side, penetrates through the space between the cooling mechanism and the supporting mechanism, and then penetrates out of the first guide roller on the other side. Compared with the prior art, the first guide rollers arranged on the two sides are used for guiding the battery diaphragm to enter and be discharged out of the rack, the diaphragm is close to the interior of the heat dissipation mechanism through the arranged supporting mechanism in the rack, heat in the diaphragm is taken away by condensate in the heat dissipation mechanism, then the battery diaphragm is rapidly cooled, and the heat dissipation efficiency of the battery diaphragm is improved while cooling is conducted. The battery diaphragm cannot be wrinkled, and the production effect of the battery diaphragm is improved.
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Description

Technical Field

[0001] This utility model relates to the field of diaphragm production technology, and in particular to a diaphragm cooling device for battery diaphragm production. Background Technology

[0002] The ion conductivity of the battery separator is directly related to the overall performance of the battery. Its function of isolating the positive and negative electrodes can limit the increase of current in the event of overcharging or temperature rise, preventing the battery from short-circuiting and causing an explosion. It also has a micropore self-sealing protection function, which plays a role in protecting the safety of battery users and equipment.

[0003] During the remanufacturing and molding process of battery separators, they are heated. Due to the thermal expansion and contraction characteristics of materials, in order to ensure smooth winding, the separator needs to be cooled before winding. The existing method is ventilation cooling, but the air blown towards the separator during ventilation cooling can easily wrinkle the battery separator, thereby affecting the molding of the battery separator, which has certain shortcomings. Therefore, we propose a separator cooling device for battery separator production. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a diaphragm cooling device for battery diaphragm production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A separator cooling device for battery separator production includes a frame and a battery separator. The frame is a U-shaped frame structure. Both ends of the frame are rotatably connected to a first guide roller. A support mechanism is installed at the bottom of the frame. A cooling mechanism is fixed on the inner wall of the frame. The battery separator enters the frame from one side of the first guide roller and passes between the cooling mechanism and the support mechanism, and then exits from the other side of the first guide roller.

[0007] Preferably, the support mechanism includes a housing fixed to the bottom of the frame, a movable block slidably connected inside the housing, a movable rod installed on the top of the movable block, the movable rod passing through the top of the housing and connected to a support frame, and a second guide roller rotatably connected inside the support frame.

[0008] Preferably, a first spring is installed between the support frame and the housing, and the first spring is sleeved on the movable rod.

[0009] Preferably, the cooling mechanism includes a mounting plate fixed to the inner wall of the frame, with support seats fixed at both ends of the bottom of the mounting plate, a third guide roller rotatably connected inside the support seats, a threaded column mounted on the bottom of the mounting plate, a mounting bracket mounted on the threaded column, a heat dissipation plate mechanism mounted on the bottom of the mounting bracket, a second spring mounted between the mounting bracket and the mounting plate, the second spring being sleeved on the threaded column, and a liquid storage tank mounted on the top of the mounting plate, the liquid storage tank being connected to the heat dissipation plate mechanism.

[0010] Preferably, the heat sink mechanism includes a sealing shell fixed on a mounting bracket, a heat-conducting plate fixed to the bottom of the sealing shell, the heat-conducting plate being inserted into the interior of the sealing shell and connected to heat-conducting fins, a heat dissipation mesh installed inside the sealing shell, and an inlet and an outlet respectively installed at both ends of the heat dissipation mesh.

[0011] Preferably, the heat dissipation mesh is in contact with the heat-conducting fins, and the liquid inlet and outlet penetrate the sealing shell and are connected to the liquid storage tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention guides the battery separator into and out of the frame by setting first guide rollers on both sides. Inside the frame, a support mechanism brings the separator close to the interior of the heat dissipation mechanism, allowing the condensate in the heat dissipation mechanism to carry away the heat inside the separator, thereby rapidly cooling the battery separator. While cooling, the battery separator will not wrinkle, thus improving the production efficiency of the battery separator. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a separator cooling device for battery separator production proposed in this utility model;

[0015] Figure 2 for Figure 1 Cross-sectional view of the central support mechanism;

[0016] Figure 3 for Figure 1 Cross-sectional view of the heat dissipation mechanism;

[0017] Figure 4 for Figure 1 A schematic diagram of the heat dissipation mechanism in the middle;

[0018] Figure 5 for Figure 4 A cross-sectional view of the heat sink mechanism.

[0019] In the diagram: 1. Frame, 2. First guide roller, 3. Support mechanism, 31. Housing, 32. Movable block, 33. Movable rod, 34. Support frame, 35. Second guide roller, 36. First spring, 4. Cooling mechanism, 41. Mounting plate, 42. Support seat, 43. Third guide roller, 44. Threaded column, 45. Mounting frame, 46. Heat dissipation plate mechanism, 461. Sealing shell, 462. Heat conduction plate, 463. Heat conduction fins, 464. Heat dissipation mesh, 465. Liquid inlet, 466. Liquid outlet, 47. Liquid storage tank, 48. Second spring, 5. Battery separator. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-5A separator cooling device for battery separator production includes a frame 1 and a battery separator 5. The frame 1 has a U-shaped frame structure. First guide rollers 2 are rotatably connected to both ends inside the frame 1. A support mechanism 3 is installed at the inner bottom of the frame 1. The support mechanism 3 includes a housing 31 fixed to the inner bottom of the frame 1. A movable block 32 is slidably connected inside the housing 31. A movable rod 33 is installed on the top of the movable block 32. The movable rod 33 passes through the top of the housing 31 and is connected to a support frame 34. A second guide roller 35 is rotatably connected inside the support frame 34. The support frame 34 and the housing 31... A first spring 36 is installed between the frame 1 and the mounting plate 41. The first spring 36 is sleeved on the movable rod 33. A cooling mechanism 4 is fixed on the inner wall of the frame 1. The cooling mechanism 4 includes a mounting plate 41 fixed on the inner wall of the frame 1. Support seats 42 are fixed at both ends of the bottom of the mounting plate 41. A third guide roller 43 is rotatably connected inside the support seat 42. A threaded column 44 is installed at the bottom of the mounting plate 41. A mounting bracket 45 is installed on the threaded column 44. A heat dissipation plate mechanism 46 is installed at the bottom of the mounting bracket 45. A second spring 48 is installed between the mounting bracket 45 and the mounting plate 41. A liquid storage tank 47 is mounted on the top of the mounting plate 41, which is connected to the threaded post 44. The liquid storage tank 47 is connected to the heat dissipation plate mechanism 46. The heat dissipation plate mechanism 46 includes a sealing shell 461 fixed on the mounting bracket 45. A heat-conducting plate 462 is fixed to the bottom of the sealing shell 461. The heat-conducting plate 462 is inserted into the interior of the sealing shell 461 and connected to heat-conducting fins 463. A heat dissipation mesh 464 is installed inside the sealing shell 461. An inlet 465 and an outlet 466 are respectively installed at both ends of the heat dissipation mesh 464. The heat dissipation mesh 464 is in contact with the heat-conducting fins 463. The inlet 465 and the outlet 466 are connected to the heat-conducting fins 463. The outlet 466 passes through the sealing shell 461 and is connected to the storage tank 47. The battery separator 5 enters the frame 1 from the first guide roller 2 on one side and passes between the cooling mechanism 4 and the support mechanism 3. Then it exits from the first guide roller 2 on the other side. The battery separator is guided into and out of the frame by the first guide rollers on both sides. Inside the frame, the separator is brought close to the inside of the heat dissipation mechanism by the support mechanism. The condensate in the heat dissipation mechanism carries away the heat in the separator, thereby cooling the battery separator quickly. At the same time, the battery separator will not wrinkle, thus improving the production efficiency of the battery separator.

[0022] In use, the device is connected to a power source. The battery separator 5 is guided into the frame 1 by the first guide roller 2 on one side. After passing through the third guide rollers 43 on both sides of the bottom of the heat dissipation mechanism 4, the battery separator 5 is discharged from the frame by the first guide roller 2 on the other side. In the support mechanism 3, supported by the first spring 36, the support frame 34 drives the second guide roller 35 to support the battery separator 5 from the bottom, so that the battery separator 5 is close to the heat conduction plate 462. In the heat dissipation mechanism 4, supported by the second spring 48, the mounting frame 45 drives the heat dissipation plate mechanism 46 to be close to the top of the battery separator 5. Then, the coolant in the storage tank 47 enters the heat dissipation mesh 464 from the inlet 465 and returns to the storage tank 47 from the outlet 466 on the other side. During the production process of the battery separator 5, the heat on the battery separator 5 is absorbed by the coolant through the heat conduction plate 462, heat conduction fins 463 and heat dissipation mesh 464. During the cooling process of the battery separator 5, no wrinkles will appear, thus improving the quality of the battery separator 5.

[0023] In summary, compared with the prior art, this utility model guides the battery separator into and out of the frame by setting first guide rollers on both sides. Inside the frame, the set support mechanism makes the separator close to the inside of the heat dissipation mechanism, so that the condensate in the heat dissipation mechanism carries away the heat inside the separator, thereby rapidly cooling the battery separator. At the same time as cooling, the battery separator will not wrinkle, thus improving the production efficiency of the battery separator.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A separator cooling device for battery separator production, comprising a rack (1) and a battery separator (5), characterized in that, The frame (1) is a U-shaped frame structure, both ends of the inside of the frame (1) are rotationally connected with first guide rollers (2), the inner bottom of the frame (1) is provided with a supporting mechanism (3), the inner wall of the frame (1) is fixed with a cooling mechanism (4), the battery diaphragm (5) enters the frame (1) from the first guide roller (2) on one side and passes through between the cooling mechanism (4) and the supporting mechanism (3), and then passes out from the first guide roller (2) on the other side.

2. The separator cooling device for battery separator production according to claim 1, characterized in that, The supporting mechanism (3) comprises a shell (31) fixed to the inner bottom of the frame (1), the inside of the shell (31) is slidably connected with a movable block (32), the top of the movable block (32) is provided with a movable rod (33), the movable rod (33) penetrates through the top of the shell (31) and is connected with a supporting frame (34), the inside of the supporting frame (34) is rotationally connected with a second guide roller (35).

3. The separator cooling device for battery separator production according to claim 2, characterized in that, First springs (36) are arranged between the supporting frame (34) and the shell (31), and the first springs (36) are sleeved on the movable rod (33).

4. The separator cooling device for battery separator production according to claim 1, characterized in that, The cooling mechanism (4) comprises a mounting plate (41) fixed to the inner wall of the frame (1), both ends of the bottom of the mounting plate (41) are fixed with supporting seats (42), the inside of the supporting seat (42) is rotationally connected with a third guide roller (43), the bottom of the mounting plate (41) is provided with a threaded column (44), the threaded column (44) is provided with a mounting frame (45), the bottom of the mounting frame (45) is provided with a heat sink mechanism (46), a second spring (48) is arranged between the mounting frame (45) and the mounting plate (41), the second spring (48) is sleeved on the threaded column (44), the top of the mounting plate (41) is provided with a liquid storage tank (47), and the liquid storage tank (47) is connected with the heat sink mechanism (46).

5. A separator cooling device for battery separator production according to claim 4, characterized in that, The heat sink mechanism (46) comprises a sealing shell (461) fixed to the mounting frame (45), the bottom of the sealing shell (461) is fixed with a heat conduction plate (462), the heat conduction plate (462) is inserted into the inside of the sealing shell (461) and is connected with heat conduction fins (463), the inside of the sealing shell (461) is provided with a heat sink net (464), both ends of the heat sink net (464) are respectively provided with a liquid inlet (465) and a liquid outlet (466).

6. The separator cooling device for battery separator production according to claim 5, characterized in that, The heat sink net (464) is in contact with the heat conduction fins (463), the liquid inlet (465) and the liquid outlet (466) penetrate through the sealing shell (461) and are connected with the liquid storage tank (47).