Snakelike water-cooling tray for battery formation

By using a serpentine water-cooled tray in close contact with the battery, the problem of uneven temperature during battery formation is solved, improving temperature uniformity and safety, reducing equipment costs and energy consumption, and enhancing battery performance.

CN224123379UActive Publication Date: 2026-04-14ZHEJIANG HANGKE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing battery formation equipment, air cooling and water cooling methods are difficult to ensure battery temperature uniformity, resulting in inconsistent battery capacity. In addition, water cooling equipment is large in size and has a long heat exchange time, which affects battery performance.

Method used

The system employs a serpentine water-cooled tray, which is in close contact with the battery through serpentine water-cooled pipes. Combined with an adjustable sliding structure, this ensures temperature uniformity and equipment safety.

Benefits of technology

It improves the temperature consistency during battery formation, reduces equipment costs and energy consumption, enhances fire safety, and improves battery quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

A snakelike water-cooling tray for battery formation comprises a water-cooling box opened upwards, a plurality of cylindrical battery mounting sleeves are arranged at the bottom of an inner cavity of the water-cooling box, longitudinal miniature sliding rails are arranged on the two transverse sides of an array formed by the cylindrical battery mounting sleeves respectively, the miniature sliding rail on one side is connected with a transverse water-cooling water inlet main pipe, and the miniature sliding rail on the other side is connected with a water-cooling water outlet main pipe. The micro slide rail 9 on the other side is connected with a transverse water-cooling water outlet main pipe; the miniature sliding rail is composed of a longitudinal first sliding block and a longitudinal second sliding block, and the first sliding block and the second sliding block are mutually embedded through a groove structure and can longitudinally slide relative to each other. A plurality of transverse S-shaped water cooling plates perpendicular to the horizontal plane are connected to the mounting grooves of the two micro sliding rails, and a cylindrical battery is clamped between every two adjacent S-shaped water cooling plates; when the water-cooling box top plate descends to be connected with the water-cooling box, the first sliding block and the second sliding block are pushed to slide relatively, so that the snakelike water-cooling plate clamps the battery, the heat exchange area is increased, the cooling effect is improved, and the space waste is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of battery manufacturing technology, specifically relating to a battery forming serpentine water-cooled tray. Background Technology

[0002] In battery manufacturing, battery formation is a crucial step. It involves charging the battery to activate its internal active materials, ensuring optimal charge and discharge performance. The battery formation process is critical and requires specialized equipment. The process generates heat during charging and discharging, which in turn affects battery capacity. In large-scale battery formation processes, it's essential to maintain uniform temperatures across all batteries to ensure consistent capacity. Common heat dissipation methods in current technology include air cooling and water cooling, which control the temperature within the storage compartments of the formation equipment to ensure temperature uniformity.

[0003] The patent application CN117638271A, titled "A Formation Equipment with Heat Concentration and Temperature Control," installs a fan on the side of the battery at the formation equipment location to dissipate heat and control the ambient temperature of the formation workshop. While using air cooling, the temperature is difficult to be uniform due to the different spatial positions of the battery equipment and the batteries themselves; batteries closer to the fan are colder, while those farther away are hotter. In contrast, the utility model application CN207852824U, titled "A Battery Formation Cooling Water Tank," describes a water cooling method where batteries are placed in the same square water tank, and cooling water is continuously circulated to dissipate heat. However, even with water cooling, the large size of the cooling water tank and the long heat exchange time can easily cause later batteries to be hotter than earlier ones, leading to uneven capacity. Summary of the Invention

[0004] To address the aforementioned issues, this utility model proposes a serpentine water-cooled tray for battery formation. The concept is to use serpentine water-cooled pipes to cool the battery during formation, thereby increasing the contact area between the water-cooled pipes and the battery while ensuring the fire safety of the equipment.

[0005] A battery-formed serpentine water-cooled tray includes an upward-opening water-cooled box 2. The bottom of the inner cavity of the water-cooled box 2 is provided with several cylindrical battery mounting sleeves 11, and cylindrical batteries 7 are supported on the cylindrical battery mounting sleeves 11. The bottom of the water-cooled box 2 has through holes, allowing the electrodes at the bottom of the cylindrical batteries 7 to contact the external needle plate mechanism.

[0006] The array of cylindrical battery mounting sleeves 11 has longitudinal miniature slide rails 9 on both sides of its horizontal direction. One miniature slide rail 9 is connected to a horizontal water-cooling inlet pipe 14, and the other miniature slide rail 9 is connected to a horizontal water-cooling outlet pipe 6. The miniature slide rail 9 is composed of a longitudinal first slider 91 and a second slider 92. The first slider 91 and the second slider 92 are interlocked by a groove structure and can slide relative to each other longitudinally. The top of the first slider 91 and the second slider 92 is provided with several mounting grooves 93 along the longitudinal direction.

[0007] Several horizontal and vertical serpentine water-cooling plates 5 are connected to the mounting slots 93 of the two miniature slide rails 9. A cylindrical battery 7 is sandwiched between two adjacent serpentine water-cooling plates 5. Water-cooling interfaces 12 are provided at both ends of the serpentine water-cooling plates 5. One end of the water-cooling interface 12 is connected to the water-cooling inlet pipe 14, and the other end of the water-cooling interface 12 is connected to the water-cooling outlet pipe 6. The water-cooling inlet pipe 14 is connected to the external water supply pipe, and the water-cooling outlet pipe 6 is connected to the external water pumping pipe.

[0008] The longitudinal ends of the miniature slide rail 9 are connected to the adjusting plate 15 via the first slider 91 and the second slider 92 in the transverse direction. Several spring limiting mechanisms 10 are connected to the side of the adjusting plate 15 near the inner wall of the water-cooled box 2. One end of the spring limiting mechanism 10 is connected to the adjusting plate 15, and the other end contacts the inner wall of the water-cooled box 2. An inclined downward pressing block 4 is provided on the top of the adjusting plate 15.

[0009] The top of the cylindrical battery 7 is covered with a battery pressure plate 8, and the top of the battery pressure plate 8 is connected to the top plate 1 of the water-cooled box. The top plate 1 of the water-cooled box and the water-cooled box 2 are connected to form a sealed cavity. The bottom of the two longitudinal sides of the top plate 1 of the water-cooled box is provided with an upper push block 3. The upper push block 3 and the lower push block 4 are shaped to fit together. When the upper push block 3 descends, it pushes the lower push block 4 longitudinally, so that the first slider 91 and the second slider 92 slide relative to each other longitudinally, thereby driving the serpentine water-cooled plate 5 to clamp the battery.

[0010] More specifically, the miniature slide rail 9 is equipped with an end sliding limit block 13 that limits the movement distance of the adjustable plate 15.

[0011] More specifically, the water-cooled box 2 is provided with an inlet and an outlet for connecting the water-cooled inlet main pipe 14 and the water-cooled outlet main pipe 6; the water-cooled inlet main pipe 14 is connected to an external water supply pipe through the inlet, and the water-cooled outlet main pipe 6 is connected to an external water pumping pipe through the outlet.

[0012] The working steps of this utility model are as follows:

[0013] 1. The top plate 1 and the water-cooled box 2 are separated, and the cylindrical battery 7 is placed in the circular groove formed by the adjacent serpentine water-cooled plate 5. The bottom of the cylindrical battery 7 is inserted into the cylindrical battery mounting sleeve 11.

[0014] 2. Connect the top plate 1 and the water-cooled box 2. During the installation process, when the upward pushing block 3 descends, it pushes the downward pressing block 4 longitudinally. The adjusting plate 15 is slowly pushed open to both sides longitudinally. The moving distance of the serpentine water-cooled plate 5, which connects the first slider 91 and the second slider 92 respectively, becomes smaller until the battery pressure plate 8 contacts the top of the cylindrical battery 7. The serpentine water-cooled plate 5 is installed in place and makes tight contact with the cylindrical battery 7.

[0015] 3. Place the water-cooled box 2 above the needle bed of the external formation equipment and connect the water inlet and outlet.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The serpentine water-cooled plate fits tightly against the cylindrical surface of the battery, resulting in a large heat exchange area. This effectively regulates the temperature during the battery formation process, maintains consistent battery temperature during charging and discharging, and improves battery quality.

[0018] 2. The longitudinally sliding and adjustable serpentine plate water-cooled pipe reduces equipment space, lowers equipment costs, and reduces energy consumption;

[0019] 3. Improved fire safety: The cylindrical battery is encased in a serpentine water-cooling plate and water-cooling box, so that the production operation of the entire factory will not be affected in the event of an abnormality. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a battery-formed serpentine water-cooled tray according to this utility model.

[0021] Figure 2 This is an internal structural diagram of a battery-formed serpentine water-cooled tray according to this utility model.

[0022] Figure 3 This is a front view of the adjustable plate of this utility model.

[0023] Figure 4 This is a top view of the serpentine water-cooled plate of this utility model.

[0024] Figure 5 This is a partial enlarged view of the miniature slide rail of this utility model. Detailed Implementation

[0025] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0031] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0032] A battery-formed serpentine water-cooled tray includes an upward-opening water-cooled box 2. The bottom of the inner cavity of the water-cooled box 2 is provided with several cylindrical battery mounting sleeves 11, and cylindrical batteries 7 are supported on the cylindrical battery mounting sleeves 11. The bottom of the water-cooled box 2 has through holes, allowing the electrodes at the bottom of the cylindrical batteries 7 to contact the external needle plate mechanism.

[0033] The array of cylindrical battery mounting sleeves 11 has longitudinal miniature slide rails 9 on both sides of its horizontal direction. One miniature slide rail 9 is connected to a horizontal water-cooling inlet pipe 14, and the other miniature slide rail 9 is connected to a horizontal water-cooling outlet pipe 6. The miniature slide rail 9 is composed of a longitudinal first slider 91 and a second slider 92. The first slider 91 and the second slider 92 are interlocked by a groove structure and can slide relative to each other longitudinally. The top of the first slider 91 and the second slider 92 is provided with several mounting grooves 93 along the longitudinal direction.

[0034] Several horizontal and vertical serpentine water-cooling plates 5 are connected to the mounting slots 93 of the two miniature slide rails 9. A cylindrical battery 7 is sandwiched between two adjacent serpentine water-cooling plates 5. Water-cooling interfaces 12 are provided at both ends of the serpentine water-cooling plates 5. One end of the water-cooling interface 12 is connected to the water-cooling inlet pipe 14, and the other end of the water-cooling interface 12 is connected to the water-cooling outlet pipe 6. The water-cooling inlet pipe 14 is connected to the external water supply pipe, and the water-cooling outlet pipe 6 is connected to the external water pumping pipe.

[0035] The longitudinal ends of the miniature slide rail 9 are connected to the adjusting plate 15 via the first slider 91 and the second slider 92 in the transverse direction. Several spring limiting mechanisms 10 are connected to the side of the adjusting plate 15 near the inner wall of the water-cooled box 2. One end of the spring limiting mechanism 10 is connected to the adjusting plate 15, and the other end contacts the inner wall of the water-cooled box 2. An inclined downward pressing block 4 is provided on the top of the adjusting plate 15.

[0036] The top of the cylindrical battery 7 is covered with a battery pressure plate 8, and the top of the battery pressure plate 8 is connected to the top plate 1 of the water-cooled box. The top plate 1 of the water-cooled box and the water-cooled box 2 are connected to form a sealed cavity. The bottom of the two longitudinal sides of the top plate 1 of the water-cooled box is provided with an upper push block 3. The upper push block 3 and the lower push block 4 are shaped to fit together. When the upper push block 3 descends, it pushes the lower push block 4 longitudinally, so that the first slider 91 and the second slider 92 slide relative to each other longitudinally, thereby driving the serpentine water-cooled plate 5 to clamp the battery.

[0037] In some embodiments, the miniature slide rail 9 is provided with an end sliding limit block 13 that limits the movement distance of the adjusting plate 15.

[0038] In some embodiments, the water-cooled box 2 is provided with an inlet and an outlet for connecting the water-cooled inlet pipe 14 and the water-cooled outlet pipe 6; the water-cooled inlet pipe 14 is connected to an external water supply pipe through the inlet, and the water-cooled outlet pipe 6 is connected to an external water pumping pipe through the outlet.

[0039] The working steps of this utility model are as follows:

[0040] 1. The top plate 1 and the water-cooled box 2 are separated, and the cylindrical battery 7 is placed in the circular groove formed by the adjacent serpentine water-cooled plate 5. The bottom of the cylindrical battery 7 is inserted into the cylindrical battery mounting sleeve 11.

[0041] 2. Connect the top plate 1 and the water-cooled box 2. During the installation process, when the upward pushing block 3 descends, it pushes the downward pressing block 4 longitudinally. The adjusting plate 15 is slowly pushed open to both sides longitudinally. The moving distance of the serpentine water-cooled plate 5, which connects the first slider 91 and the second slider 92 respectively, becomes smaller until the battery pressure plate 8 contacts the top of the cylindrical battery 7. The serpentine water-cooled plate 5 is installed in place and makes tight contact with the cylindrical battery 7.

[0042] 3. Place the water-cooled box 2 above the needle bed of the external formation equipment and connect the water inlet and outlet.

[0043] The beneficial effects of this utility model are as follows:

[0044] 1. The serpentine water-cooled plate fits tightly against the cylindrical surface of the battery, resulting in a large heat exchange area. This effectively regulates the temperature during the battery formation process, maintains consistent battery temperature during charging and discharging, and improves battery quality.

[0045] 2. The longitudinally sliding and adjustable serpentine plate water-cooled pipe reduces equipment space, lowers equipment costs, and reduces energy consumption;

[0046] 3. Improved fire safety: The cylindrical battery is encased in a serpentine water-cooling plate and water-cooling box, so that the production operation of the entire factory will not be affected in the event of an abnormality.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A battery-formed serpentine water-cooled tray, characterized in that: It includes an upward-opening water-cooled box (2), and the bottom of the inner cavity of the water-cooled box (2) is provided with several cylindrical battery mounting sleeves (11), on which cylindrical batteries (7) are supported; the bottom of the water-cooled box (2) has a through hole, allowing the electrodes at the bottom of the cylindrical battery (7) to contact the external needle plate mechanism. The array of cylindrical battery mounting sleeves (11) has longitudinal miniature slide rails (9) on both sides of its transverse direction. One miniature slide rail (9) is connected to a transverse water-cooling inlet pipe (14), and the other miniature slide rail (9) is connected to a transverse water-cooling outlet pipe (6). The miniature slide rail (9) is composed of a longitudinal first slider (91) and a second slider (92). The first slider (91) and the second slider (92) are interlocked by a groove structure and can slide longitudinally relative to each other. The top of the first slider (91) and the second slider (92) is provided with several mounting grooves (93) along the longitudinal direction. Several horizontal and vertical serpentine water-cooling plates (5) are connected to the mounting slots (93) of the two miniature slide rails (9). A cylindrical battery (7) is sandwiched between two adjacent serpentine water-cooling plates (5). Water-cooling interfaces (12) are provided at both ends of the serpentine water-cooling plates (5). One end of the water-cooling interface (12) is connected to the water-cooling inlet pipe (14), and the other end of the water-cooling interface (12) is connected to the water-cooling outlet pipe (6). The water-cooling inlet pipe (14) is connected to the external water supply pipe, and the water-cooling outlet pipe (6) is connected to the external water pumping pipe. The longitudinal ends of the miniature slide rail (9) are connected to the adjusting plate (15) via the first slider (91) and the second slider (92) in the transverse direction. Several spring limiting mechanisms (10) are connected to the side of the adjusting plate (15) near the inner wall of the water-cooled box (2). One end of the spring limiting mechanism (10) is connected to the adjusting plate (15), and the other end contacts the inner wall of the water-cooled box (2). An inclined downward pressing block (4) is provided on the top of the adjusting plate (15). A battery pressure plate (8) is provided on the top of the cylindrical battery (7). The top of the battery pressure plate (8) is connected to the top plate (1) of the water-cooled box. The top plate (1) of the water-cooled box is connected to the water-cooled box (2) to form a sealed cavity. The top plate (1) of the water-cooled box has an upper push block (3) at the bottom of both sides in the longitudinal direction; the upper push block (3) and the lower push block (4) are in shape and when the upper push block (3) descends, it pushes the lower push block (4) in the longitudinal direction, so that the first slider (91) and the second slider (92) slide relative to each other in the longitudinal direction, thereby driving the serpentine water-cooled plate (5) to clamp the battery.

2. The battery-formed serpentine water-cooled tray according to claim 1, characterized in that: The miniature slide rail (9) is equipped with an end sliding limit block (13) that limits the movement distance of the adjustable plate (15).

3. The battery-formed serpentine water-cooled tray according to claim 1, characterized in that: The water-cooled box (2) is provided with an inlet and an outlet for connecting the water-cooled inlet pipe (14) and the water-cooled outlet pipe (6); the water-cooled inlet pipe (14) is connected to an external water supply pipe through the inlet, and the water-cooled outlet pipe (6) is connected to an external water pumping pipe through the outlet.

Citation Information

Patent Citations

  • Formation equipment capable of gathering heat and controlling temperature

    CN117638271A

  • Batteryization becomes cooling trough

    CN207852824U