A water-cooled capacity-distribution integrated machine

Abstract

A water-cooled capacity separation unit includes a capacity separation chamber with an internal moving mechanism for battery charging and discharging. The chamber has top and side air ducts on its top and left / right sides. The top air duct houses a top fan assembly, while the side air ducts, from top to bottom, include a middle fan assembly, a water-cooling plate assembly, and a bottom fan assembly. Hot air generated by the operating mechanism is blown into the top air duct by the top fan assembly, passes through the air guide plate and the middle fan assembly, and is then cooled by the water-cooling plate assembly. The cooled air is then blown into the middle of the capacity separation chamber by the bottom fan assembly, flows through the moving mechanism, and is finally blown back into the top air duct by the top fan assembly. The integrated fan assembly effectively improves cooling circulation efficiency and ensures temperature uniformity within the capacity separation chamber. The fan assembly can be pulled out with a handle for easy maintenance and inspection by external personnel.

Description

Technical Field

[0001] This utility model relates to the field of blade battery manufacturing, and in particular to a water-cooled capacity testing machine. Background Technology

[0002] In the battery production process, capacity grading refers to performing several full-load charge-discharge cycles on activated blade batteries to test their internal resistance and charge-discharge capacity. This process is used to eliminate batteries with quality problems (such as low capacity, excessive self-discharge, or excessive internal resistance) and to group batteries according to their capacity and internal grouping to select batteries with similar performance to form battery packs.

[0003] Chinese patent CN117766885A discloses a motion mechanism for testing blade lithium-ion batteries. This mechanism uses a support connected to a cylinder to press the blade battery together from above and below, thus charging and discharging it. This device generates a significant amount of heat during operation and battery charging / discharging. Furthermore, because the positive and negative electrode plates are connected to the blade battery from above and below respectively, this device occupies a larger space compared to prismatic battery grading equipment. The overheating and bulky nature of this device negatively impacts the efficiency of the grading process. Summary of the Invention

[0004] To address the aforementioned issues, this utility model proposes a water-cooled integrated capacity distribution unit. Its design concept lies in improving the circulation efficiency of the refrigeration system by adding an internal air circulation duct to the inner wall of the capacity distribution box, optimizing the position and number of fans, and thereby improving the temperature stability of the capacity distribution equipment.

[0005] A water-cooled capacity separation machine includes a capacity separation chamber. A positive electrode plate assembly 6 and a lifting cylinder 51 are located on the top of the inner wall of the capacity separation chamber, and a capacity separation bottom frame 52 is located on the bottom of the inner wall. A vertical piston rod connects the lifting cylinder 51 and the capacity separation bottom frame 52. A vertical guide post 56 connects the top of the inner wall of the capacity separation chamber and the capacity separation bottom frame 52. A negative electrode plate assembly 7 is located on the capacity separation bottom frame 52. A tray placement plate 55, which carries a battery tray 57, is slidably inserted through the guide post 56. A vertical lower limit post 58 is located at the bottom of the capacity separation chamber, and the bottom of the tray placement plate 55 contacts the lower limit post 58. The positive electrode plate assembly 6 corresponds vertically to the positive electrode of the blade battery in the battery tray 57, and the negative electrode plate assembly 7 corresponds vertically to the negative electrode of the blade battery in the battery tray 57.

[0006] The top of the compartment is provided with a top air duct 34, and the left and right sides of the compartment are provided with vertical side air ducts 24; the top air duct 34 and the side air ducts 24 are connected.

[0007] The lower surface of the top air duct 34 is connected to several top fan assemblies 3 arranged side by side. The top fan assemblies 3 can blow air from the distribution box into the top air duct 34. The side air duct 24 is provided with a middle fan assembly 2, a water-cooled plate assembly 4 and a lower fan assembly 1 from top to bottom. The middle fan assembly 2 can blow air from top to bottom. The water-cooled plate assembly 4 is connected to an external water-cooling mechanism. The lower fan assembly 1 can blow air from the side air duct 24 into the distribution box. The cooled air flows through the negative electrode needle plate assembly 7, the battery tray 57 and the positive electrode assembly 6 and is then blown back into the top air duct 34 by the top fan assembly 3.

[0008] More specifically, the top fan assembly 3 includes a top fan plate 32, on which a plurality of top fans 31 are provided; the front end of the top fan plate 32 is provided with a top fan handle 33, which can be pulled forward to remove the top fan assembly 3.

[0009] More specifically, the central fan assembly 2 includes a central fan plate 22, on which a plurality of central fans 21 are provided; the front end of the central fan plate 22 is provided with a central fan handle 23, which can be pulled forward to remove the central fan assembly 2.

[0010] More specifically, the bottom fan assembly 1 includes a bottom fan plate 12, on which a plurality of bottom fans 11 are provided; a bottom fan handle 13 is provided at the front end of the bottom fan plate 12, which can be pulled forward to remove the bottom fan assembly 1.

[0011] More specifically, a guide vane 9 is provided at the internal connection between the top air duct 34 and the side air duct 24 to adjust the air direction.

[0012] More specifically, the dividing bottom frame 52 is provided with a spring assembly 53 that can extend and retract vertically, and the bottom of the tray placement plate 55 is provided with an upper limit post 54; the position of the upper limit post 54 corresponds vertically to the spring assembly 53.

[0013] More specifically, the positive electrode plate assembly 6 has a built-in drive board, which saves space occupied by wiring between the electrical control cabinet and the positive electrode plate assembly 6.

[0014] The working steps of this utility model include:

[0015] 1. The lifting cylinder 51 pulls the capacity-dividing bottom frame 52 upward, and the spring assembly 53 contacts the upper limit post 54. At this time, the negative electrode plate assembly 7 does not contact the negative electrode tab of the battery.

[0016] 2. The capacity-dividing bottom frame 52 and the tray placement plate 55 move upward together until the positive electrode needle plate assembly 6 contacts the positive electrode tab of the battery. During this process, the upper limit post 54 contacts the tray placement plate 54.

[0017] 3. The tray placement plate 55 stops moving, but the lifting cylinder 51 pulls up, compressing the spring assembly 53 until the negative electrode tab of the battery contacts the negative electrode plate assembly 7. The positive electrode plate assembly 6 and the negative electrode plate assembly 7 charge and discharge the blade battery, completing the capacity grading.

[0018] During operation, the top fan assembly 3, the middle fan assembly 2, and the bottom fan assembly 1 are activated. The hot air generated by the equipment operation is blown into the top air duct 34 by the top fan assembly 3, and after passing through the air guide plate 9 and the middle fan assembly 2, it is cooled by the water-cooled plate assembly 4. The cooled air is then blown into the middle of the capacity distribution box by the bottom fan assembly 1, flowing sequentially through the negative electrode plate assembly 7, the battery tray 57, and the positive electrode plate assembly 6, and finally blown back into the top air duct 34 by the top fan assembly 3.

[0019] The technical advantages of this utility model are as follows: it integrates the lower fan assembly, middle fan assembly, top fan assembly and water-cooled plate assembly into one unit inside the capacity distribution box, which effectively saves storage space. The efficient internal circulation of cold air ensures the uniformity of the ambient temperature and battery surface temperature in the capacity distribution storage area. The fan assembly can be pulled out with a handle, which is convenient for external personnel to maintain and inspect. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a water-cooled capacity-distribution integrated machine according to this utility model.

[0021] Figure 2 This is a front view of a water-cooled capacity-distributing integrated machine according to this utility model.

[0022] Figure 3 This is a structural diagram of the bottom fan assembly of this utility model.

[0023] Figure 4 This is a structural diagram of the central fan assembly of this utility model.

[0024] Figure 5 This is a structural diagram of the top fan assembly of this utility model.

[0025] Figure 6 This is a schematic diagram of the internal air circulation of this utility model. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0033] A water-cooled capacity separation machine includes a capacity separation chamber. A positive electrode plate assembly 6 and a lifting cylinder 51 are located on the top of the inner wall of the capacity separation chamber, and a capacity separation bottom frame 52 is located on the bottom of the inner wall. A vertical piston rod connects the lifting cylinder 51 and the capacity separation bottom frame 52. A vertical guide post 56 connects the top of the inner wall of the capacity separation chamber and the capacity separation bottom frame 52. A negative electrode plate assembly 7 is located on the capacity separation bottom frame 52. A tray placement plate 55, which carries a battery tray 57, is slidably inserted through the guide post 56. A vertical lower limit post 58 is located at the bottom of the capacity separation chamber, and the bottom of the tray placement plate 55 contacts the lower limit post 58. The positive electrode plate assembly 6 corresponds vertically to the positive electrode of the blade battery in the battery tray 57, and the negative electrode plate assembly 7 corresponds vertically to the negative electrode of the blade battery in the battery tray 57.

[0034] The top of the compartment is provided with a top air duct 34, and the left and right sides of the compartment are provided with vertical side air ducts 24; the top air duct 34 and the side air ducts 24 are connected.

[0035] Several top fan assemblies 3 are connected to the lower surface of the top air duct 34, which are arranged side by side. The top fan assemblies 3 can blow air from the distribution box into the top air duct 34. The side air duct 24 is provided with a middle fan assembly 2, a water-cooled plate assembly 4 and a lower fan assembly 1 from top to bottom. The middle fan assembly 2 can blow air from top to bottom. The water-cooled plate assembly 4 is connected to an external water-cooling mechanism. The lower fan assembly 1 can blow air from the side air duct into the distribution box. The cooled air flows through the negative electrode needle plate assembly 7, the battery tray 57 and the positive electrode assembly 6 and is then blown back into the top air duct 34 by the top fan assembly.

[0036] In some embodiments, the top fan assembly 3 includes a top fan plate 32, on which a plurality of top fans 31 are provided; the front end of the top fan plate 32 is provided with a top fan handle 33, which can be pulled forward to remove the top fan assembly 3.

[0037] In some embodiments, the central fan assembly 2 includes a central fan plate 22, on which a plurality of central fans 21 are provided; a central fan handle 23 is provided at the front end of the central fan plate 22, which can be pulled forward to remove the central fan assembly 2.

[0038] In some embodiments, the bottom fan assembly 1 includes a bottom fan plate 12, on which a plurality of bottom fans 11 are provided; a bottom fan handle 13 is provided at the front end of the bottom fan plate 12, which can be pulled forward to remove the bottom fan assembly 1.

[0039] In some embodiments, a guide plate 9 is provided at the internal connection between the top air duct 34 and the side air duct 24 to adjust the air direction.

[0040] In some embodiments, the dividing bottom frame 52 is provided with a spring assembly 53 that can extend and retract vertically, and the bottom of the tray placement plate 55 is provided with an upper limit post 54; the position of the upper limit post 54 corresponds vertically to the spring assembly 53.

[0041] In some embodiments, the positive electrode plate assembly 6 has a built-in drive board, which saves the space occupied by wiring between the electrical control cabinet and the positive electrode plate assembly.

[0042] In some embodiments, the fan in the lower fan assembly 1 is a DC1725, and the number of components is 6.

[0043] In some embodiments, the fan in the central fan assembly 2 is a DC1725, and the number of components is 6.

[0044] In some embodiments, the top fan assembly 3 uses a DC12038 fan, with a quantity of 7, arranged above the positive electrode plate assembly 6 at a spacing of approximately 185mm.

[0045] The working steps of this utility model include:

[0046] 1. The lifting cylinder 51 pulls the capacity-dividing bottom frame 52 upward, and the spring assembly 53 contacts the upper limit post 54. At this time, the negative electrode plate assembly 7 does not contact the negative electrode tab of the battery.

[0047] 2. The capacity-dividing bottom frame 52 and the tray placement plate 55 move upward together until the positive electrode needle plate assembly 6 contacts the positive electrode tab of the battery. During this process, the upper limit post 54 contacts the tray placement plate 54.

[0048] 3. The tray placement plate 55 stops moving, but the lifting cylinder 51 pulls up, compressing the spring assembly 53 until the negative electrode tab of the battery contacts the negative electrode plate assembly 7. The positive electrode plate assembly 6 and the negative electrode plate assembly 7 charge and discharge the blade battery, completing the capacity grading.

[0049] During operation, the top fan assembly 3, the middle fan assembly 2, and the bottom fan assembly 1 are activated. The hot air generated by the equipment operation is blown into the top air duct 34 by the top fan assembly 3, and after passing through the air guide plate 9 and the middle fan assembly 2, it is cooled by the water-cooled plate assembly 4. The cooled air is then blown into the middle of the capacity distribution box by the bottom fan assembly 1, flowing sequentially through the negative electrode plate assembly 7, the battery tray 57, and the positive electrode plate assembly 6, and finally blown back into the top air duct 34 by the top fan assembly 3; the ambient temperature of the battery is always maintained at 14±2℃.

[0050] The technical advantages of this utility model are as follows: it integrates the lower fan assembly, middle fan assembly, top fan assembly and water-cooled plate assembly into one unit inside the capacity distribution box, which effectively saves storage space. The efficient internal circulation of cold air ensures the uniformity of the ambient temperature and battery surface temperature in the capacity distribution storage area. The fan assembly can be pulled out with a handle, which is convenient for external personnel to maintain and inspect.

[0051] 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 water-cooled capacity separation integrated machine, comprising a capacity separation box, wherein a positive electrode needle plate assembly (6) and a lifting cylinder (51) are provided on the top of the inner wall of the capacity separation box, and a capacity separation bottom frame (52) is provided on the bottom of the inner wall of the capacity separation box, and a vertical piston rod is connected between the lifting cylinder (51) and the capacity separation bottom frame (52); a vertical guide column (56) is connected between the top of the inner wall of the capacity separation box and the capacity separation bottom frame (52); a negative electrode needle plate assembly (7) is provided on the capacity separation bottom frame (52); a tray placement plate (55) carrying a battery tray (57) is slidably inserted through the guide column (56), and a vertical lower limit column (58) is provided at the bottom of the capacity separation box, with the bottom of the tray placement plate (55) contacting the lower limit column (58); the positive electrode needle plate assembly (6) corresponds vertically to the positive electrode of the blade battery in the battery tray (57), and the negative electrode needle plate assembly (7) corresponds vertically to the negative electrode of the blade battery in the battery tray (57); characterized in that: The top of the compartment is provided with a top air duct (34), and the left and right sides of the compartment are provided with vertical side air ducts (24); the top air duct (34) is connected to the side air duct (24); The lower surface of the top air duct (34) is connected to several top fan assemblies (3) arranged side by side. The top fan assemblies (3) can blow air from the distribution box into the top air duct (34). The side air duct (24) is provided with a middle fan assembly (2), a water-cooled plate assembly (4) and a lower fan assembly (1) from top to bottom. The middle fan assembly (2) can blow air from top to bottom. The water-cooled plate assembly (4) is connected to an external water-cooling mechanism. The lower fan assembly (1) can blow air from the side air duct into the distribution box. The cooled air flows through the negative electrode needle plate assembly (7), the battery tray (57) and the positive electrode needle plate assembly (6) and is then blown back into the top air duct (34) by the top fan assembly.

2. The water-cooled integrated capacity-distribution machine according to claim 1, characterized in that: The top fan assembly (3) includes a top fan plate (32), on which a number of top fans (31) are provided; a top fan handle (33) is provided at the front end of the top fan plate (32), which can be pulled forward to remove the top fan assembly (3).

3. The water-cooled capacity-distribution integrated machine according to claim 1, characterized in that: The central fan assembly (2) includes a central fan plate (22), on which a number of central fans (21) are provided; a central fan handle (23) is provided at the front end of the central fan plate (22), which can be pulled forward to remove the central fan assembly (2).

4. The water-cooled capacity-distribution integrated machine according to claim 1, characterized in that: The lower fan assembly (1) includes a bottom fan plate (12), on which a number of bottom fans (11) are provided; a bottom fan handle (13) is provided at the front end of the bottom fan plate (12), which can be pulled forward to remove the bottom fan assembly (1).

5. The water-cooled capacity-distribution integrated machine according to claim 1, characterized in that: A guide plate (9) is provided at the internal connection between the top air duct (34) and the side air duct (24) to adjust the air direction.

6. The water-cooled capacity-distribution integrated machine according to claim 1, characterized in that: The capacity bottom frame (52) is provided with a spring assembly (53) that can extend and retract vertically, and the bottom of the tray placement plate (55) is provided with an upper limit post (54); the position of the upper limit post (54) corresponds vertically to the spring assembly (53).

7. A water-cooled capacity-distribution integrated machine according to claim 1, characterized in that: The positive electrode plate assembly (6) has a built-in drive board.

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