Air cylinder pressure regulating self-heating restraining tray

Abstract

The utility model relates to a self-heating restraining tray capable of regulating pressure by an air cylinder, which relates to the technical field of battery production and processing equipment and is characterized by comprising an external frame, a plurality of groups of guide columns, a laminate component, a laminate hanging plate, a negative pressure module follow-up mechanism and an air path component, and the two ends of each guide column are respectively and fixedly arranged at the upper parts of the two ends of the external frame; the shelf board hanging plates are evenly erected on the guide columns in a sliding mode, the shelf board assembly is arranged on the shelf board hanging plates, the negative pressure module follow-up mechanism is fixedly arranged on the shelf board assembly and is in sliding connection with the outer frame, and the air path assembly is fixedly arranged on the end side of the outer frame and is connected with the shelf board assembly. According to the utility model, constant restraint pressure and effective temperature control on the battery can be realized. Pressure can be automatically adjusted according to expansion of the battery, constant restraining force on the battery is kept, meanwhile, the self-heating function is achieved, and necessary environment temperature is provided for the battery. In addition, an effective heat dissipation system is arranged, so that the temperature stability of the battery in the operation process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production and processing equipment, in particular to a cylinder pressure-regulating self-heating restraint tray. Background Art

[0002] During the formation process of battery production, the heating method has a crucial impact on battery performance. Traditional formation processes mainly rely on methods such as environmental heating and bin heating, but these methods have some limitations and deficiencies.

[0003] Environmental heating usually means that the temperature of the entire production environment is increased, which leads to increased energy consumption and low heating efficiency because the heat is dispersed throughout the environment rather than concentrated on the battery. Although bin heating is relatively concentrated, it still cannot achieve precise temperature control for each battery, resulting in an impact on the consistency of battery formation.

[0004] In the design of traditional restraint trays, the upper plate of the tray is fixed. The heat generated by the battery during charge and discharge will cause expansion, which in turn affects the pressure on the battery. Due to the fixity of the tray, this expansion cannot be effectively alleviated, and the pressure on the battery may deviate from the designed value. This uneven distribution of pressure will lead to uneven charge and discharge of the battery, affecting its performance and lifespan.

[0005] More seriously, if the battery expands arbitrarily during the formation process, it may push adjacent batteries to shift. When this movement accumulates to the last battery, it may cause it to deviate too far from the predetermined position, making it impossible to accurately locate the positive and negative electrodes of the battery, and may even lead to the failure of the operation in severe cases. Summary of the Utility Model

[0006] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a cylinder pressure-regulating self-heating restraint tray, which can achieve a constant restraint pressure on the battery and effective temperature control. It can automatically adjust the pressure according to the expansion of the battery to maintain a constant restraint force on the battery, and at the same time has a self-heating function to provide the necessary ambient temperature for the battery. In addition, it is equipped with an effective heat dissipation system to ensure the temperature stability of the battery during operation.

[0007] To solve the above technical problems, the utility model provides the following technical solutions:

[0008] A cylinder pressure-regulating self-heating restraint tray, characterized in that it includes an external frame, guide posts, a laminate assembly, a laminate hanging plate, a negative pressure module follower mechanism, and a gas circuit assembly. Multiple groups of the guide posts are provided, and both ends are respectively fixedly arranged on the upper parts of both ends of the external frame. The laminate hanging plates are evenly slidably mounted on the guide posts. The laminate assembly is arranged on the laminate hanging plates. The negative pressure module follower mechanism is fixedly arranged on the laminate assembly and is slidably connected to the external frame. The gas circuit assembly is fixedly arranged on the side of the end of the external frame, and the gas circuit assembly is connected to the laminate assembly;

[0009] The negative pressure module follower mechanism includes a negative pressure cup mounting seat, a slider connecting seat, an adjusting screw, a tension spring, a negative pressure cup, and a slider rail. The negative pressure cup mounting seat is fixedly installed on the laminate assembly. The slider connecting seat is fixedly arranged on the laminate assembly. The adjusting screw is arranged on the slider connecting seat. Both ends of the tension spring are respectively fixed on the negative pressure cup mounting seat and the slider connecting seat. The negative pressure cup is fixedly installed on the negative pressure cup mounting seat. The slider rail is fixedly arranged on the external frame. The negative pressure cup mounting seat and the slider connecting seat are respectively slidably connected to the slider rail.

[0010] In a preferred technical solution, the laminate assembly includes a first single-layer laminate, a second single-layer laminate, an elastic sealing ring, a heating sheet, and a module docking insert. The second single-layer laminate is nested and slidably connected with the first single-layer laminate. The elastic sealing rings are respectively fixedly arranged on the inner sides of the first single-layer laminate and the second single-layer laminate. After the elastic sealing rings on the inner sides of the first single-layer laminate and the second single-layer laminate are combined, a cavity is formed inside. The heating sheet is fixedly arranged on the inner sides of the first single-layer laminate and the second single-layer laminate and is located inside the cavity. The module docking insert is fixedly connected to the upper side of the first single-layer laminate or the second single-layer laminate. Both sides of the second single-layer laminate are fixedly connected to the laminate hanging plate.

[0011] In a preferred technical solution, the gas circuit assembly includes a cylinder, a gas circuit, a pressure sensor, an overflow valve, a mechanical exhaust valve, and a one-way valve. The cylinder is fixedly arranged on the external frame and is communicated with the cavity inside the laminate assembly through the gas circuit. The pressure sensor, the overflow valve, the mechanical exhaust valve, and the one-way valve are arranged on the gas circuit.

[0012] In a preferred technical solution, it further includes a heat dissipation assembly, and the heat dissipation assembly is evenly and fixedly arranged on the inner bottom of the external frame.

[0013] In a preferred technical solution, a temperature sensor is arranged inside the external frame.

[0014] In a preferred technical solution, the required electrical components and gas circuit and pipeline components are all installed on the inner bottom of the external frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Self-heating and constant restraint pressure: Through the built-in heating sheet and cylinder, the tray can achieve self-heating during the whole operation process and provide a constant restraint pressure for the battery, which is beneficial to improving the battery performance.

[0017] Real-time heat dissipation to maintain temperature stability: The cooling fan dissipates heat from the battery during operation in real time to keep the temperature stable, which helps to prevent the battery from overheating.

[0018] Automatic pressure adjustment and reset mechanism: The gas circuit components include a pressure sensor, a relief valve, etc., which can automatically adjust the internal pressure according to the expansion of the battery to maintain a constant contact pressure. The negative pressure module follow-up mechanism with a tension spring and slider design can achieve automatic reset.

[0019] Improve the changeover speed and equipment safety: Since the battery spacing remains constant, there is no need to frequently replace the probe module and the negative pressure module. Only the spacer needs to be increased or decreased, thus improving the changeover speed. At the same time, converting the overall heating to local heating is more convenient for control and reduces the possibility of accidents.

[0020] Improve the product yield rate: Through precise follow-up positioning and grouped probe design, the cumulative dimensional error caused by the expansion and thickness dimensional error of lithium batteries is eliminated, ensuring the accurate alignment of the negative pressure suction nozzle with the battery liquid injection port, improving the airtightness, and thus improving the product yield rate.

[0021] Improve the temperature uniformity and reduce energy consumption waste: Adopting the direct contact heating of the laminate component and the battery not only improves the temperature uniformity of the battery but also reduces the loss and waste of energy consumption. Brief Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] Figure 2 is the present utility model Figure 1 of the partial structural schematic diagram;

[0024] Figure 3 is the present utility model Figure 2 of the partial structural schematic diagram;

[0025] Figure 4 is the schematic structural diagram of the laminate component of the present utility model;

[0026] In the figure: 1. External frame; 2. Guide pillar; 3. Laminate assembly; 4. Laminate hanging plate; 5. Negative pressure module follower mechanism; 6. Cylinder; 31. First single-layer laminate; 32. Second single-layer laminate; 33. Elastic sealing ring; 34. Heating sheet; 35. Module docking insert block; 51. Negative pressure cup mounting seat; 52. Slide block connecting seat; 53. Adjusting screw; 54. Pull spring; 55. Negative pressure cup; 56. Slide block slide rail; 100. Battery. Specific embodiments

[0027] The technical solutions of the present application will be further described in detail below in conjunction with specific embodiments.

[0028] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0029] As Figure 1 and Figure 2 shown, a cylinder pressure-regulating self-heating restraint tray, characterized in that it includes an external frame 1, guide pillars 2, a laminate assembly 3, a laminate hanging plate 4, a negative pressure module follower mechanism 5 and a gas circuit assembly. Multiple groups of guide pillars 2 are provided and are respectively fixedly arranged at the upper parts of both ends of the external frame 1. The laminate hanging plate 4 is evenly slidably mounted on the guide pillars. The laminate assembly 3 is arranged on the laminate hanging plate 4. The negative pressure module follower mechanism 5 is fixedly arranged on the laminate assembly 3 and is slidably connected to the external frame 1. The gas circuit assembly is fixedly arranged on the side of the external frame 1 and is connected to the laminate assembly 3. The gas circuit assembly includes a cylinder 6, a gas circuit, a pressure sensor, an overflow valve, a mechanical exhaust valve and a one-way valve. The cylinder 6 is fixedly arranged on the external frame 1 and is communicated with the cavity inside the laminate assembly 3 through the gas circuit. The pressure sensor, the overflow valve, the mechanical exhaust valve and the one-way valve are arranged on the gas circuit. It further includes a heat dissipation assembly, and the heat dissipation assembly is evenly fixedly arranged at the inner bottom of the external frame 1. A temperature sensor is arranged inside the external frame 1. The required electrical components and gas circuit and pipeline components are all installed at the inner bottom of the external frame 1.

[0030] As Figure 1 , Figure 2 and Figure 3As shown in the figure, the negative pressure module follower mechanism 5 includes a negative pressure cup mounting seat 51, a slider connecting seat 52, an adjusting screw 53, a tension spring 54, a negative pressure cup 55, and a slider slide rail 56. The negative pressure cup mounting seat 51 is fixedly installed on the laminate assembly 3. The slider connecting seat 52 is fixedly arranged on the laminate assembly 3. The adjusting screw 53 is arranged on the slider connecting seat 52. The two ends of the tension spring 54 are respectively fixed on the negative pressure cup mounting seat 51 and the slider connecting seat 52. The negative pressure cup 55 is fixedly installed on the negative pressure cup mounting seat 51. The slider slide rail 56 is fixedly arranged on the outer frame 1. The negative pressure cup mounting seat 51 and the slider connecting seat 52 are respectively slidably connected to the slider slide rail 56.

[0031] As Figure 4 shown in the figure, the laminate assembly 3 includes a first single-layer laminate 31, a second single-layer laminate 32, an elastic sealing ring 33, a heating sheet 34, and a module docking insert 35. The second single-layer laminate 32 is nested and slidably connected to the first single-layer laminate 31. The elastic sealing ring 33 is respectively fixedly arranged on the inner sides of the first single-layer laminate 31 and the second single-layer laminate 32. After the elastic sealing rings on the inner sides of the first single-layer laminate 31 and the second single-layer laminate 32 are combined, a cavity is formed inside. The heating sheet 34 is fixedly arranged on the inner sides of the first single-layer laminate 31 and the second single-layer laminate 32 and is located inside the cavity. The module docking insert 35 is fixedly connected to the upper side of the first single-layer laminate 31. Both sides of the second single-layer laminate 32 are fixedly connected to the laminate hanging plate 4.

[0032] As Figures 1 to 4 shown

[0033] During the whole process of battery operation, the utility model can realize self-heating and provide a constant restraint pressure. The tray is divided into left and right two workstations. The guide posts 2 are equipped with laminate hanging plates 4. The laminate hanging plates 4 are mechanically connected to the laminate assembly 3. The cylinder 6 outputs a set thrust, and the first single-layer laminate 31 and the second single-layer laminate 32 press the battery 100. A specific gas is injected into the cavity inside the first single-layer laminate 31 and the second single-layer laminate 32. The heating sheet 34 is installed inside the cavity to heat the laminate. The cooling fan dissipates heat from the battery 100 in real time during operation to maintain temperature stability.

[0034] The slider connecting seat 52 is mechanically connected to the module docking insert 35. When the first single-layer laminate 31 and the second single-layer laminate 32 in a certain channel move, they will drive the module docking insert 35 to move together. At this time, the tension spring 54 is in a stretched state, and the tension spring 54 at the end of the restraint tray starts to be stressed. There is a fixed block at the end of the restraint tray to limit the negative pressure cup 55 at the outermost end. When resetting is required, the negative pressure cup 55 will move back together in the direction of the negative pressure cup 55 at the end under the action of the pulling force of the tension spring 54.

[0035] The gas circuit assembly includes a cylinder 6, a pressure sensor, a relief valve, a mechanical exhaust valve, a check valve, and various connectors. When the tray is loaded, the cylinder 6 is inflated until the pressure sensor reaches the set pressure value and the inflation stops. At this time, the in-warehouse formation process starts. When the battery 100 expands during the formation process, when the pressure detected by the pressure sensor that the battery 100 expands and squeezes the first single-layer board 31 and the second single-layer board 32 exceeds the set value, the relief valve discharges a part of the gas. The channel with the out-of-tolerance expansion force of the battery 100 will preferentially and automatically compensate for the stroke of the exhaust piston rod of the cylinder 6 until the contact pressure between the first single-layer board 31 and the second single-layer board 32 and the battery 100 remains at the set value and the exhaust stops.

[0036] The heat dissipation assembly (not shown) includes a heat dissipation assembly installed at the bottom of the tray. The heat dissipation assembly uses analog control to adjust the fan speed. When the temperature of a certain channel of the board assembly 3 is detected to exceed the set value, the corresponding fan will adjust the speed to increase the air volume to achieve the purpose of accelerating the heat dissipation speed. When the temperature of the board assembly 3 drops to the set temperature, the fan speed decreases to maintain a constant speed. Each fan adjusts its speed independently according to the temperature sensor.

[0037] The changeover speed of the present utility model is improved (the battery spacing remains constant, and there is no need to replace the probe module and the negative pressure module, only the pads need to be increased or decreased), and the equipment safety is improved (the warehouse position heating or the plant heating is replaced with tray heating, and the overall heating becomes local heating, which is more convenient to control and reduces the possibility of accidents). By matching the probe groups with the battery 100, the two are positioned in a follow-up manner, eliminating the cumulative dimensional error caused by the expansion and thickness dimensional error of the lithium battery, making the alignment between the negative pressure nozzle negative pressure cup 55 and the liquid injection port of the battery 100 relatively accurate, and ensuring excellent airtightness during the negative pressure process and improving the product yield. Using the direct contact heating of the board assembly 3 and the battery 100 can improve the temperature uniformity of the battery and reduce the loss and waste of energy consumption.

[0038] The above has described the preferred embodiments of the present application in detail, but the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present application.

Claims

1. A cylinder pressure-regulating self-heating restraint tray, characterized in that: It includes an external frame (1), guide posts (2), a laminate assembly (3), a laminate hanging plate (4), a negative pressure module follower mechanism (5) and a gas circuit assembly. Multiple groups of the guide posts (2) are provided and are respectively fixedly arranged at the upper parts of both ends of the external frame (1). The laminate hanging plate (4) is evenly slidably mounted on the guide posts. The laminate assembly (3) is arranged on the laminate hanging plate (4). The negative pressure module follower mechanism (5) is fixedly arranged on the laminate assembly (3) and is slidably connected to the external frame (1). The gas circuit assembly is fixedly arranged on the end side of the external frame (1), and the gas circuit assembly is connected to the laminate assembly (3); The negative pressure module follower mechanism (5) includes a negative pressure cup mounting seat (51), a slider connection seat (52), an adjusting screw (53), a tension spring (54), a negative pressure cup (55) and a slider rail (56). The negative pressure cup mounting seat (51) is fixedly mounted on the laminate assembly (3). The slider connection seat (52) is fixedly arranged on the laminate assembly (3). The adjusting screw (53) is arranged on the slider connection seat (52). Both ends of the tension spring (54) are respectively fixed on the negative pressure cup mounting seat (51) and the slider connection seat (52). The negative pressure cup (55) is fixedly mounted on the negative pressure cup mounting seat (51). The slider rail (56) is fixedly arranged on the external frame (1). The negative pressure cup mounting seat (51) and the slider connection seat (52) are respectively slidably connected to the slider rail (56); The laminate assembly (3) includes a first single-layer laminate (31), a second single-layer laminate (32), an elastic sealing ring (33), a heating sheet (34) and a module docking insert (35). The second single-layer laminate (32) is nested and slidably connected to the first single-layer laminate (31). The elastic sealing rings (33) are respectively fixedly arranged on the inner sides of the first single-layer laminate (31) and the second single-layer laminate (32). After the elastic sealing rings on the inner sides of the first single-layer laminate (31) and the second single-layer laminate (32) are combined, a cavity is formed inside. The heating sheet (34) is fixedly arranged on the inner sides of the first single-layer laminate (31) and the second single-layer laminate (32) and is located inside the cavity. The module docking insert (35) is fixedly connected to the upper side of the first single-layer laminate (31) or the second single-layer laminate (32). Both sides of the second single-layer laminate (32) are fixedly connected to the laminate hanging plate (4); It further includes a heat dissipation assembly, and the heat dissipation assembly is evenly and fixedly arranged at the inner bottom of the external frame (1).

2. The cylinder pressure-regulating self-heating restraint tray according to claim 1, wherein: The gas circuit assembly includes a cylinder (6), a gas circuit, a pressure sensor, an overflow valve, a mechanical exhaust valve and a check valve. The cylinder (6) is fixedly arranged on the external frame (1) and is communicated with the cavity inside the laminate assembly (3) through the gas circuit. The pressure sensor, the overflow valve, the mechanical exhaust valve and the check valve are arranged on the gas circuit.

3. A cylinder pressure regulating self-heating restraint tray according to claim 1, characterized in that: A temperature sensor is arranged inside the external frame (1).

4. A cylinder pressure regulating self-heating restraint tray according to any one of claims 1-3, characterized in that: The required electrical components and gas circuit and pipeline components are all installed at the inner bottom of the external frame (1).

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