Water-cooling integrated tray for battery formation

Abstract

A battery formation water-cooling integrated tray comprises a square lower cover plate, two horizontal opposite sides of the lower cover plate are defined as the left side and the right side, and the other two sides are defined as the front side and the rear side; the top of the lower cover plate is provided with a plurality of serial printed boards extending left and right from front to back; a vertically upward probe is arranged on the series printed board; a net-shaped water cooling pipeline is arranged at the top of the probe, and a cylindrical battery sleeve is arranged at the top of the water cooling pipeline; the cylindrical battery sleeve is provided with a plurality of battery through holes which are vertically flush with the position of the motor interface; a battery limiting block is arranged at the top of the cylindrical battery sleeve; a square upper cover plate is arranged at the top of the battery limiting block, and the front side, the rear side, the left side and the right side of the upper cover plate and the lower cover plate are connected through vertical cavity assemblies; the device is high in air tightness, uniform in battery water cooling effect, small in occupied space, high in safety and capable of adapting to batteries of multiple liquid injection types.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery manufacturing, and in particular relates to a battery formation water-cooling integrated tray. Background Art

[0002] In the field of battery manufacturing, battery formation is an important link. The active materials inside the battery are activated by charging the battery to ensure the battery's charge and discharge performance. The battery formation process is a key link and requires the use of dedicated battery formation equipment for charging. Heat is generated during the battery formation process as it is charged and discharged, and the generation of heat will in turn affect the battery capacity. In large-scale battery formation processes, it is necessary to ensure that the temperature of different batteries is the same so that the battery capacity is consistent. Common heat dissipation methods in the prior art include air cooling and water cooling, which ensure the temperature uniformity of the batteries in the storage area by controlling the temperature of the storage area inside the formation equipment.

[0003] Among the prior arts closest to the present invention, the "A Heat-Gathering and Temperature-Controlled Formation Equipment" with publication number CN117638271A installs a fan at the position of the formation equipment mechanism to dissipate heat on the side of the battery, and also controls the ambient temperature of the formation workshop, that is, uses an air-cooling mode. However, as the spatial positions of different battery equipment and the positions of the batteries are different, it is difficult to uniform the temperature. The temperature of the battery close to the fan is relatively low, and the temperature far away from the fan is relatively high. The utility model with publication number CN207852824U describes a water-cooling mode of "A Battery Formation Cooling Water Tank", which places the batteries in the same square water tank and dissipates heat for the formed batteries by continuously circulating cooling water, even in a water-cooling mode. However, due to the large volume of the cooling water tank and the long heat exchange time, it is easy for the temperature of the rear battery to be higher than that of the front battery, which leads to uneven capacity. Summary of the Invention

[0004] In response to the above problems, the utility model proposes a battery formation water-cooling integrated tray, comprising a square lower cover plate, wherein the two horizontal opposite sides of the lower cover plate are defined as the left and right sides, and the other two sides are the front and the rear sides; the top of the lower cover plate is provided with several left-right extending series printed circuit boards from front to back; the series printed circuit boards are provided with vertically upward probes; the top of the probes is provided with a mesh water-cooling pipe, and the top of the water-cooling pipe is provided with a cylindrical battery sleeve; the cylindrical battery sleeve is provided with several battery through holes that are flush with the upper and lower positions of the motor interface; the top of the cylindrical battery sleeve is provided with a battery limit block; the top of the battery limit block is provided with a square upper cover plate, and the upper cover plate is connected to the front, rear, left and right sides of the lower cover plate through a vertical cavity assembly.

[0005] More specifically, a water inlet is provided at the right front end of the water cooling pipe, and a water outlet is provided at the right rear end of the water cooling pipe; a through hole corresponding to the water inlet and the water outlet is provided on the right side of the cavity assembly, and a negative pressure hole is provided on the right side of the cavity assembly, and the negative pressure hole is connected to an external negative pressure device.

[0006] More specifically, a first sealing ring is connected between the upper cover plate and the cavity assembly, and a second sealing ring is connected between the cavity assembly and the lower cover plate.

[0007] The working steps of the utility model are:

[0008] 1. The upper cover and battery limit block are separated from the cavity assembly, and the battery is placed into the battery through-hole in the cylindrical battery case.

[0009] 2. Connect the upper cover plate and the cavity assembly. The battery is pressed down by the battery limit block and contacts the probe of the series printed circuit board.

[0010] 3. The external negative pressure device removes the air in the enclosed space formed by the upper cover, cavity assembly and lower cover through the negative pressure hole; the water cooling pipe circulates cooling water through the water outlet and water inlet; the probe charges and discharges the battery.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. It has an efficient water cooling function, which effectively regulates the temperature during battery formation, maintains the consistency of the ambient temperature during battery charging and discharging, and improves the quality of the battery;

[0013] 2. The meshed water cooling pipe reduces equipment space, equipment costs and energy consumption;

[0014] 3. The cavity-type negative pressure mechanism eliminates the limitations of conventional nozzle-type negative pressure structures, requires lower positioning accuracy for the equipment, and reduces the difficulty of equipment manufacturing;

[0015] 4. The cavity-type negative pressure structure avoids the residual electrolyte dripping during battery filling in conventional nozzle-type negative pressure structures, which affects the charging and discharging test of the equipment. The cavity-type negative pressure structure can adapt to more types of battery filling while also ensuring the battery's airtightness;

[0016] 5. Improved fire safety. If a battery malfunctions inside the cavity-type negative pressure equipment, it will not affect the production operations of the entire factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a battery formation water cooling integrated tray.

[0018] Figure 2 This is a diagram of the internal structure of the battery formation water-cooling integrated tray of the present utility model.

[0019] Figure 3 This is an exploded view of the present invention.

[0020] Figure 4 This is a structural diagram of the upper cover and battery limit block of the utility model.

[0021] Figure 5 This is a structural diagram of a cylindrical battery pack of the present invention.

[0022] Figure 6 It is a structural diagram of the series printed circuit board of the present invention.

[0023] Figure 7 It is a structural diagram of the water-cooling pipeline of the present invention. DETAILED DESCRIPTION

[0024] The following describes the specific implementation of the embodiment of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the embodiment of the present invention and is not intended to limit the embodiment of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0026] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with exemplary embodiments.

[0031] A battery formation water-cooling integrated tray comprises a square lower cover plate 9, wherein two opposite horizontal sides of the lower cover plate 9 are defined as the left and right sides, and the other two sides are defined as the front and rear sides; a plurality of series-connected printed circuit boards 6 extending left and right are provided on the top of the lower cover plate from front to back; a vertically upward probe 61 is provided on the series-connected printed circuit board 6; a mesh-shaped water-cooling pipe 4 is provided on the top of the probe 61, and a cylindrical battery sleeve 3 is provided on the top of the water-cooling pipe 4; a plurality of battery through holes that are flush with the motor interface position are provided on the cylindrical battery sleeve 3; a battery limit block 2 is provided on the top of the cylindrical battery sleeve; a square upper cover plate 7 is provided on the top of the battery limit block 2, and the upper cover plate 7 is connected to the front, rear, left and right sides of the lower cover plate 9 via a vertical cavity assembly 8.

[0032] In some embodiments, a water inlet 42 is provided at the right front end of the water-cooling pipe 4, and a water outlet 41 is provided at the right rear end of the water-cooling pipe 4; a through hole corresponding to the water inlet 42 and the water outlet 41 is provided on the right side of the cavity assembly 8, and a negative pressure hole 10 is provided on the right side of the cavity assembly, and the negative pressure hole 10 is connected to an external negative pressure device.

[0033] In some embodiments, a first sealing ring 1 is connected between the upper cover plate and the cavity assembly, and a second sealing ring 5 is connected between the cavity assembly and the lower cover plate.

[0034] The working steps of the utility model are:

[0035] 1. The upper cover and battery limit block are separated from the cavity assembly, and the battery is placed into the battery through-hole in the cylindrical battery case.

[0036] 2. Connect the upper cover plate and the cavity assembly. The battery is pressed down by the battery limit block and contacts the probe of the series printed circuit board.

[0037] 3. The external negative pressure device removes the air in the enclosed space formed by the upper cover, cavity assembly and lower cover through the negative pressure hole; the water cooling pipe circulates cooling water through the water outlet and water inlet; the probe charges and discharges the battery.

[0038] Compared with the prior art, the beneficial effects of the present invention are:

[0039] 1. It has an efficient water cooling function, which effectively regulates the temperature during battery formation, maintains the consistency of the ambient temperature during battery charging and discharging, and improves the quality of the battery;

[0040] 2. The meshed water cooling pipe reduces equipment space, equipment costs and energy consumption;

[0041] 3. The cavity-type negative pressure mechanism eliminates the limitations of conventional nozzle-type negative pressure structures, requires lower positioning accuracy for the equipment, and reduces the difficulty of equipment manufacturing;

[0042] 4. The cavity-type negative pressure structure avoids the residual electrolyte dripping during battery filling in conventional nozzle-type negative pressure structures, which affects the charging and discharging test of the equipment. The cavity-type negative pressure structure can adapt to more types of battery filling while also ensuring the battery's airtightness;

[0043] 5. Improved fire safety. If a battery malfunctions inside the cavity-type negative pressure equipment, it will not affect the production operations of the entire factory.

Claims

1. A battery formation water cooling integrated tray, characterized by: It comprises a square lower cover plate, with two opposite horizontal sides of the lower cover plate defined as the left side and the right side, and the other two sides as the front side and the rear side; a plurality of series printed circuit boards extending left and right are provided on the top of the lower cover plate from front to back; a vertically upward probe is provided on the series printed circuit board; a mesh water cooling pipe is provided on the top of the probe, and a cylindrical battery sleeve is provided on the top of the water cooling pipe; a plurality of battery through holes flush with the upper and lower positions of the motor interface are provided on the cylindrical battery sleeve; a battery limit block is provided on the top of the cylindrical battery sleeve; a square upper cover plate is provided on the top of the battery limit block, and the upper cover plate is connected to the front, rear, left and right sides of the lower cover plate through a vertical cavity assembly.

2. A battery formation water-cooling integrated tray according to claim 1, characterized in that: A water inlet is provided at the right front end of the water cooling pipe, and a water outlet is provided at the right rear end of the water cooling pipe; a through hole corresponding to the water inlet and the water outlet is provided on the right side of the cavity assembly, and a negative pressure hole is provided on the right side of the cavity assembly, and the negative pressure hole is connected to an external negative pressure device.

3. A battery formation water-cooling integrated tray according to claim 2, characterized in that: A first sealing ring is connected between the upper cover plate and the cavity assembly, and a second sealing ring is connected between the cavity assembly and the lower cover plate.

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