High-efficiency cooling type hot-pressing device for new energy battery production

Abstract

The utility model discloses a kind of high-efficiency cooling type new energy battery production hot-pressing devices, it is related to new energy battery production field, including device main body, the device main body surface is equipped with support seat, and support seat top is equipped with lower hot-pressing template and upper hot-pressing template, the upper hot-pressing template and lower hot-pressing template inside are equipped with cooling mechanism for heat dissipation to battery, the cooling mechanism includes the cooling flow channel being arranged in the upper hot-pressing template and lower hot-pressing template inside, the device main body end portion is fixedly installed with storage tank, and storage tank top is equipped with circulating refrigerator, the support seat outer wall is equipped with the fixing mechanism for the lower hot-pressing template is conveniently disassembled and assembled.The high-efficiency cooling type new energy battery production hot-pressing device, high-efficiency cooling is realized by setting cooling mechanism, the cooling period after battery hot-pressing is greatly shortened, seamless link of hot-pressing and cooling process is realized, and the production efficiency of new energy battery is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery production technology, specifically a high-efficiency cooling type hot pressing device for new energy battery production. Background Technology

[0002] In the production of new energy batteries, hot pressing is one of the key processes. Its purpose is to make the positive and negative electrode plates inside the battery fit tightly with the separator, reduce contact resistance, improve ion transport efficiency, and thus ensure the charging and discharging performance and structural stability of the battery.

[0003] In the prior art, Chinese Patent No. CN219226357U discloses a battery cell hot pressing device. The battery cell hot pressing device includes a base plate, a top plate, a support column, a pressure plate frame, a hot pressing plate, and a driving mechanism. The top plate and the base plate are connected by the support column. The driving mechanism is set on the top plate. The pressure plate frame is located between the base plate and the top plate and is connected to the driving mechanism. The inner ring of the pressure plate frame includes a first side, a second side, a third side, and a fourth side that are connected vertically in sequence. The hot pressing plate is parallel to the base plate and its two ends are connected to the first side and the third side, respectively. There are gaps between the hot pressing plate and the second side and the fourth side. Using this battery cell hot pressing device can prevent creases and coating peeling from appearing on the inner ring electrode at the arc corner of the battery cell during hot pressing, thereby improving the yield of the battery cell.

[0004] Based on the above materials, in the existing technology, after the hot pressing process is completed, the hot pressing device for new energy battery production mostly adopts natural cooling to cool the battery. This not only results in low cooling efficiency but also leads to poor connection between the hot pressing and cooling processes. Therefore, we propose a high-efficiency cooling hot pressing device for new energy battery production. Utility Model Content

[0005] The purpose of this utility model is to provide a high-efficiency cooling hot pressing device for the production of new energy batteries, in order to solve the problem mentioned in the background art. In the prior art, after the hot pressing process is completed, the hot pressing device for the production of new energy batteries mostly adopts natural cooling to cool the battery, which not only has low cooling efficiency, but also leads to poor connection between the hot pressing and cooling processes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency cooling hot pressing device for the production of new energy batteries, comprising a device body, a support base on the surface of the device body, and a lower hot pressing template and an upper hot pressing template on the top of the support base. Both the upper and lower hot pressing templates are provided with cooling mechanisms for dissipating heat from the battery. The cooling mechanisms include cooling channels disposed inside the upper and lower hot pressing templates. A storage box is fixedly installed at the end of the device body, and a circulating cooler is provided on the top of the storage box. The outer wall of the support base is provided with a fixing mechanism for convenient disassembly and assembly of the lower hot pressing template.

[0007] Furthermore, the cooling channel is an S-shaped bend, and the cooling channel is evenly distributed inside the upper and lower hot-pressing templates.

[0008] Furthermore, the inner wall of the cooling channel is provided with a turbulence flange, and the turbulence flange is designed in a spiral shape along the length of the cooling channel, and the turbulence flange is distributed at equal angles on the inner wall of the cooling channel.

[0009] Furthermore, the end of the circulating cooler is provided with a cooling inlet pipe and a connecting pipe. The end of the cooling inlet pipe away from the circulating cooler is connected to the liquid inlet end of the cooling channel, and the end of the connecting pipe away from the circulating cooler is connected to the storage tank.

[0010] Furthermore, the top of the storage tank is provided with a return pipe, and the end of the return pipe away from the storage tank is connected to the end of the cooling channel away from the cooling inlet pipe.

[0011] Furthermore, the fixing mechanism includes an assembly groove formed on the outer wall of the support base, and a fastening block is slidably installed on the inner wall of the assembly groove. A fastening bolt that is threadedly connected to the support base is rotatably installed at the end of the fastening block, and a handle is provided at the end of the fastening bolt.

[0012] Furthermore, the lower hot-press template has a T-shaped cross-section and is slidably connected to the assembly groove. The side wall of the lower hot-press template has two sets of fastening grooves that are symmetrically distributed.

[0013] Furthermore, the fastening block has a trapezoidal cross-section, and one end of the inclined surface of the fastening block abuts against the fastening groove. Two sets of limiting grooves are symmetrically distributed on both sides of the fastening block.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This high-efficiency cooling-type hot pressing device for new energy battery production achieves efficient cooling through the design of the cooling mechanism. The S-shaped uniformly distributed cooling channels expand the contact area with the hot pressing template. Combined with the spiral-shaped turbulence flange, the flow trajectory of the coolant is disrupted, extending the heat exchange time and improving the heat exchange uniformity. Furthermore, the closed-loop circulation system formed by the circulating cooler and the storage tank keeps the coolant at a low temperature. Compared with the traditional natural cooling method, it significantly shortens the cooling cycle after battery hot pressing, achieves seamless connection between the hot pressing and cooling processes, and effectively improves the production efficiency of new energy batteries.

[0015] 2. The lower hot-pressing template can be easily disassembled and assembled by setting a fixing mechanism. The T-shaped lower hot-pressing template slides in the assembly groove. By rotating the handle, the fastening bolts are driven to move the trapezoidal fastening blocks into the fastening slots. The inclined surface abuts against the fastening to achieve stable positioning. Conversely, the template can be quickly disassembled by loosening the bolts. This not only reduces the difficulty of template maintenance and replacement, but also adapts to the hot-pressing requirements of different battery specifications, improving the versatility and flexibility of the device.

[0016] 3. Through the coordinated design of the cooling mechanism and the fixing mechanism, this device ensures both cooling efficiency and structural stability. The embedded design of the cooling channel does not affect the pressure accuracy of the hot pressing template. The cooperation between the fastening block and the limiting slide groove ensures that the template does not shift after installation. The spiral turbulence flange can also enhance the structural strength of the cooling channel and avoid deformation during long-term use. This not only ensures the bonding quality of the battery after hot pressing but also extends the service life of the device, further improving the yield rate of new energy battery production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the main body of the device of this utility model; Figure 3 This is a schematic diagram of the cooling channel structure of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the cooling channel of this utility model; Figure 5 This is a schematic diagram of the cooling mechanism of this utility model; Figure 6 This is a schematic diagram of the cross-sectional structure of the support base of this utility model; Figure 7 This is a schematic diagram of the fixing mechanism of this utility model.

[0018] In the diagram: 1. Main body of the device; 2. Upper hot press template; 3. Lower hot press template; 301. Fastening slot; 4. Support base; 401. Assembly slot; 5. Cooling channel; 501. Turbulence flange; 6. Circulating cooler; 601. Cooling inlet pipe; 602. Connecting pipe; 7. Storage tank; 701. Return pipe; 8. Fastening block; 801. Limiting slide groove; 9. Fastening bolt; 901. Handle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figures 1-5 The present invention provides the following technical solution: a high-efficiency cooling hot pressing device for the production of new energy batteries, comprising a device body 1, a support base 4 on the surface of the device body 1, and a lower hot pressing template 3 and an upper hot pressing template 2 on the top of the support base 4. Both the upper hot pressing template 2 and the lower hot pressing template 3 are provided with cooling mechanisms for dissipating heat from the battery. The cooling mechanisms include cooling channels 5 disposed inside the upper hot pressing template 2 and the lower hot pressing template 3. A storage box 7 is fixedly installed at the end of the device body 1, and a circulating cooler 6 is provided on the top of the storage box 7.

[0021] like Figure 3 and Figure 4 As shown, the cooling channel 5 is an S-shaped bend, and the cooling channel 5 is evenly distributed inside the upper hot press template 2 and the lower hot press template 3; the inner wall of the cooling channel 5 is provided with a turbulence flange 501, and the turbulence flange 501 is designed in a spiral shape along the length direction of the cooling channel 5, and the turbulence flange 501 is distributed at equal angles on the inner wall of the cooling channel 5.

[0022] like Figures 1-5 As shown, the circulating cooler 6 is provided with a cooling inlet pipe 601 and a connecting pipe 602 at its end. The end of the cooling inlet pipe 601 away from the circulating cooler 6 is connected to the liquid inlet end of the cooling channel 5, and the end of the connecting pipe 602 away from the circulating cooler 6 is connected to the storage tank 7. The top of the storage tank 7 is provided with a return pipe 701, and the end of the return pipe 701 away from the storage tank 7 is connected to the end of the cooling channel 5 away from the cooling inlet pipe 601.

[0023] First, the coolant stored in the storage tank 7 is transported to the circulating cooler 6 via the connecting pipe 602. The circulating cooler 6 cools the coolant, keeping it at a low operating temperature. Then, the cooled coolant is transported to the S-shaped cooling channels 5 inside the upper hot pressing platen 2 and the lower hot pressing platen 3 via the cooling inlet pipe 601. Because the cooling channels 5 are evenly distributed, they can fully cover the area in contact between the hot pressing platen and the battery, achieving large-area heat exchange. During the flow of the coolant through the cooling channels 5, the spiral-shaped, equally angled turbulence flanges 501 on the inner wall of the channels disrupt the flow trajectory of the coolant, preventing uneven heat exchange caused by laminar flow, extending the contact time between the coolant and the hot pressing platen, improving heat exchange efficiency, and thus quickly absorbing the residual heat after the battery is hot-pressed. After the heat exchange is completed, the temperature of the coolant rises and is then transported back to the storage tank 7 via the return pipe 701, forming a complete coolant circulation loop to continuously cool the battery after hot pressing, ensuring seamless connection between the hot pressing and cooling processes.

[0024] Example 2: Please refer to Figures 1-7Based on Embodiment 1, a fixing mechanism is also disclosed, the specific structure of which is as follows: The outer wall of the support base 4 is provided with a fixing mechanism for convenient assembly and disassembly of the lower hot press template 3. The fixing mechanism includes an assembly groove 401 opened on the outer wall of the support base 4, and a fastening block 8 is slidably installed on the inner wall of the assembly groove 401. The end of the fastening block 8 is rotatably installed with a fastening bolt 9 threadedly connected to the support base 4. The end of the fastening bolt 9 is provided with a handle 901. The lower hot press template 3 has a T-shaped cross section and is slidably connected to the assembly groove 401. The side wall of the lower hot press template 3 has two sets of fastening slots 301 symmetrically distributed. The fastening block 8 has a trapezoidal cross section and one end of the inclined surface of the fastening block 8 abuts against the fastening slot 301. Two sets of limiting grooves 801 symmetrically distributed on both sides of the fastening block 8 are provided.

[0025] The fixing mechanism achieves convenient assembly and disassembly and stable fixation of the lower hot-press template 3 through mechanical locking and limiting structures. During installation, the T-shaped lower hot-press template 3 is first slidably inserted into the assembly groove 401 on the outer wall of the support base 4 to accurately position the template. Then, the handle 901 at the end of the fastening bolt 9 is rotated. Since the fastening bolt 9 is threadedly connected to the support base 4, the rotation will push the trapezoidal fastening block 8 in the assembly groove 401 to slide along the groove until one end of the inclined surface of the fastening block 8 is tightly abutted against the fastening slot 301 on the side wall of the lower hot-press template 3, using the squeezing force of the inclined surface to form a lateral limit on the lower hot-press template 3. When the fastening block 8 is in motion, the limiting grooves 801 on both sides of the fastening block 8 cooperate with the protruding structure on the inner wall of the assembly groove 401 to prevent the fastening block 8 from shifting when sliding, thus achieving a stable installation of the lower hot pressing template 3 and ensuring that the template does not shift during the hot pressing process. When disassembling, the handle 901 is rotated in the opposite direction, which drives the fastening bolt 9 to move outward from the support base 4. The fastening block 8 is released from the fastening groove 301 along with the bolt, thus releasing the limitation on the lower hot pressing template 3. At this time, the lower hot pressing template 3 can be slid outward along the assembly groove 401 to complete the quick disassembly of the template, which is convenient for subsequent maintenance, replacement or adaptation to the hot pressing requirements of different battery specifications.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency cooling-type hot pressing device for the production of new energy batteries, comprising a device body (1), wherein a support base (4) is provided on the surface of the device body (1), and a lower hot pressing template (3) and an upper hot pressing template (2) are provided on the top of the support base (4), characterized in that: The upper hot press template (2) and the lower hot press template (3) are both equipped with cooling mechanisms for dissipating heat from the battery. The cooling mechanism includes cooling channels (5) inside the upper hot press template (2) and the lower hot press template (3). A storage box (7) is fixedly installed at the end of the main body (1) of the device, and a circulating cooler (6) is provided on the top of the storage box (7). The outer wall of the support base (4) is provided with a fixing mechanism for easy disassembly and assembly of the lower hot press template (3).

2. The high-efficiency cooling type hot pressing device for new energy battery production according to claim 1, characterized in that: The cooling channel (5) is an S-shaped bend, and the cooling channel (5) is evenly distributed inside the upper hot press template (2) and the lower hot press template (3).

3. The high-efficiency cooling type hot pressing device for new energy battery production according to claim 2, characterized in that: The inner wall of the cooling channel (5) is provided with a turbulence flange (501), and the turbulence flange (501) is designed in a spiral shape along the length of the cooling channel (5), and the turbulence flange (501) is distributed at equal angles on the inner wall of the cooling channel (5).

4. The high-efficiency cooling type hot pressing device for new energy battery production according to claim 1, characterized in that: The circulating cooler (6) is provided with a cooling inlet pipe (601) and a connecting pipe (602) at its end. The end of the cooling inlet pipe (601) away from the circulating cooler (6) is connected to the liquid inlet end of the cooling channel (5), and the end of the connecting pipe (602) away from the circulating cooler (6) is connected to the storage tank (7).

5. The high-efficiency cooling type hot pressing device for new energy battery production according to claim 1, characterized in that: The storage tank (7) is provided with a return pipe (701) at the top, and the end of the return pipe (701) away from the storage tank (7) is connected to the end of the cooling channel (5) away from the cooling inlet pipe (601).

6. The high-efficiency cooling type hot pressing device for new energy battery production according to claim 1, characterized in that: The fixing mechanism includes an assembly groove (401) opened on the outer wall of the support base (4), and a fastening block (8) is slidably installed on the inner wall of the assembly groove (401), and a fastening bolt (9) threadedly connected to the support base (4) is rotatably installed at the end of the fastening block (8), and a handle (901) is provided at the end of the fastening bolt (9).

7. The high-efficiency cooling type hot pressing device for new energy battery production according to claim 6, characterized in that: The lower hot press template (3) has a T-shaped cross section and is slidably connected to the assembly groove (401). The side wall of the lower hot press template (3) is provided with two sets of fastening grooves (301) that are symmetrically distributed.

8. The high-efficiency cooling type hot pressing device for new energy battery production according to claim 6, characterized in that: The fastening block (8) has a trapezoidal cross section, and one end of the inclined surface of the fastening block (8) abuts against the fastening slot (301). Two sets of limiting grooves (801) are symmetrically distributed on both sides of the fastening block (8).

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