Air cylinder pressure regulating self-heating restraining tray

Abstract

The invention 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 invention, 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 invention 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] In 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 warehouse heating, but these methods have some limitations and shortcomings.

[0003] Ambient heating usually means that the temperature of the entire production environment is raised, which leads to increased energy consumption and low heating efficiency because the heat is dispersed throughout the environment instead of being concentrated on the battery. Although warehouse heating is relatively centralized, it still cannot achieve precise temperature control of each battery, which affects the consistency of battery formation.

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

[0005] More seriously, if the battery expands randomly during the formation process, it may push the adjacent batteries to shift. When this movement accumulates to the last battery, it may deviate too much from the predetermined position, making it impossible to accurately locate the positive and negative poles of the battery, which may cause the operation to fail in serious cases. Summary of the invention

[0006] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a cylinder pressure regulating self-heating restraint tray, which can achieve constant restraint pressure and effective temperature control for the battery. 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 also equipped with an effective heat dissipation system to ensure the temperature stability of the battery during operation.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A cylinder pressure regulating self-heating restraint tray, characterized in that it includes an external frame, guide pillars, a layer plate assembly, a layer plate hanging plate, a negative pressure module follower mechanism and an air path assembly, wherein the guide pillars are provided with multiple groups and the two ends are respectively fixedly arranged at the upper parts of the two ends of the external frame, the layer plate hanging plate is evenly slidably mounted on the guide pillars, the layer plate assembly is arranged on the layer plate hanging plate, the negative pressure module follower mechanism is fixedly arranged on the layer plate assembly and is slidably connected to the external frame, the air path assembly is fixedly arranged on the end side of the external frame, and the air path assembly is connected to the layer plate 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 mounted on the layer plate assembly, the slider connecting seat is fixedly arranged on the layer plate assembly, the adjusting screw is arranged on the slider connecting seat, the two 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 mounted on the negative pressure cup mounting seat, the slider rail is fixedly arranged on the external frame, and the negative pressure cup mounting seat and the slider connecting seat are respectively slidably connected to the slider rail.

[0010] A preferred technical solution, the layer panel assembly includes a first single-layer layer panel, a second single-layer layer panel, an elastic sealing ring, a heating plate and a module docking block, the second single-layer layer panel is nested and slidably connected to the first single-layer layer panel, the elastic sealing ring is fixedly arranged on the inner side of the first single-layer layer panel and the second single-layer layer panel respectively, the inner side elastic sealing rings of the first single-layer layer panel and the second single-layer layer panel are combined to form a cavity, the heating plate is fixedly arranged on the inner side of the first single-layer layer panel and the second single-layer layer panel and is located in the cavity, the module docking block is fixedly connected to the upper side of the first single-layer layer panel or the second single-layer layer panel, and the two sides of the second single-layer layer panel are fixedly connected to the layer panel hanging plate.

[0011] A preferred technical solution, the air circuit assembly includes a cylinder, an air circuit, a pressure sensor, a relief valve, a mechanical exhaust valve and a one-way valve, the cylinder is fixedly arranged on an external frame and is connected to the internal cavity of the layer plate assembly through the air circuit, and the pressure sensor, relief valve, mechanical exhaust valve and one-way valve are arranged on the air circuit.

[0012] The preferred technical solution also includes a heat dissipation component, and the heat dissipation fan is evenly fixedly arranged on the inner bottom of the external frame.

[0013] According to a preferred technical solution, a temperature sensor is disposed inside the external frame.

[0014] According to the 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 present invention has the following beneficial effects:

[0016] Self-heating and constant restraining pressure: With built-in heating sheets and cylinders, the tray can achieve self-heating during the entire operation and provide constant restraining pressure for the battery, which is beneficial to improve battery performance.

[0017] Real-time heat dissipation maintains stable temperature: The cooling fan dissipates heat from the operating battery in real time to maintain a stable temperature, helping to prevent the battery from overheating.

[0018] Automatic pressure adjustment and reset mechanism: The gas circuit components include pressure sensors, overflow valves, etc., which can automatically adjust the internal pressure according to the battery expansion and maintain a constant contact pressure. The negative pressure module follower mechanism has a tension spring and slider design, which can achieve automatic reset.

[0019] Improve the speed of changeover 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 pads need to be added or removed, which improves the speed of changeover. At the same time, the overall heating is converted to local heating, which is easier to control and reduces the possibility of accidents.

[0020] Improve product yield: Through precise follow-up positioning and grouped probe design, the cumulative dimensional error caused by lithium battery expansion and thickness dimensional error is eliminated, ensuring the precise alignment of the negative pressure nozzle and the battery filling port, improving air tightness, and thus improving product yield.

[0021] Improve temperature uniformity and reduce energy waste: Use direct contact heating between the layer plate assembly and the battery, which not only improves the temperature uniformity of the battery, but also reduces energy loss and waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the local structure;

[0024] Figure 3 For the present invention Figure 2 Schematic diagram of the local structure;

[0025] Figure 4 It is a schematic diagram of the structure of the layer plate assembly of the present invention;

[0026] In the figure: 1. External frame; 2. Guide column; 3. Shelf assembly; 4. Shelf hanging plate; 5. Negative pressure module follower mechanism; 6. Cylinder; 31. First single-layer shelf; 32. Second single-layer shelf; 33. Elastic sealing ring; 34. Heat generating plate; 35. Module docking block; 51. Negative pressure cup mounting seat; 52. Slider connecting seat; 53. Adjusting screw; 54. Tension spring; 55. Negative pressure cup; 56. Slider rail; 100. Battery. DETAILED DESCRIPTION

[0027] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0029] like Figure 1 and Figure 2 As shown, a cylinder pressure regulating self-heating restraint tray is characterized in that it includes an external frame 1, a guide column 2, a layer assembly 3, a layer hanging plate 4, a negative pressure module follower mechanism 5 and an air circuit assembly, wherein the guide column 2 is provided with multiple groups and both ends are fixedly arranged at the upper parts of both ends of the external frame 1, the layer hanging plate 4 is evenly slidably mounted on the guide column, the layer assembly 3 is arranged on the layer hanging plate 4, the negative pressure module follower mechanism 5 is fixedly arranged on the layer assembly 3 and is slidably connected with the external frame 1, the air circuit assembly is fixedly arranged at the end side of the external frame 1, and the air circuit assembly is connected with the layer assembly 3; the air circuit assembly includes a cylinder 6, an air circuit, a pressure sensor, a relief valve, a mechanical exhaust valve and a one-way valve, the cylinder 6 is fixedly arranged on the external frame 1 and is connected with the internal cavity of the layer assembly 3 through the air circuit, and the pressure sensor, the relief valve, the mechanical exhaust valve and the one-way valve are arranged on the air circuit. It also includes a heat dissipation assembly, and the heat dissipation fan 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 and piping components are all installed on the inner bottom of the outer frame 1 .

[0030] like Figure 1 , Figure 2 and Figure 3As shown, 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 rail 56. The negative pressure cup mounting seat 51 is fixedly mounted on the layer assembly 3, the slider connecting seat 52 is fixedly set on the layer assembly 3, the adjusting screw 53 is set 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 mounted on the negative pressure cup mounting seat 51, the slider rail 56 is fixedly set on the external frame 1, and the negative pressure cup mounting seat 51 and the slider connecting seat 52 are respectively slidably connected with the slider rail 56.

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

[0032] like Figures 1 to 4 Shown

[0033] The present invention can realize self-heating and provide constant restraint pressure during the whole operation of the battery. The tray is divided into two left and right stations. The guide column 2 is equipped with a layer plate hanging plate 4, which is mechanically connected to the layer plate assembly 3. The cylinder 6 outputs the set thrust. The first single-layer plate 31 and the second single-layer plate 32 pressurize the battery 100. The cavity between the first single-layer plate 31 and the second single-layer plate 32 will be injected with a specific gas. The cavity is equipped with a heating sheet 34 for heating the layer plate. The heat dissipation fan dissipates heat from the battery 100 in real time during operation to maintain a stable temperature.

[0034] The slider connecting seat 52 is mechanically connected to the module docking block 35. When the first single-layer plate 31 and the second single-layer plate 32 in a channel move, the module docking block 35 will be driven to move together. At this time, the tension spring 54 is in a pulled state, and the tension spring 54 at the end of the restraint tray begins to be subjected to force. There is a fixed block at the tail end of the restraint tray to limit the negative pressure cup 55 at the end. When resetting is required, the negative pressure cup 55 will move together in the direction of the negative pressure cup 55 at the end under the tension of the tension spring 54 to reset.

[0035] The gas circuit assembly includes a cylinder 6, a pressure sensor, a relief valve, a mechanical exhaust valve, a one-way valve, and various joints. After the loading of the pallet is completed, the cylinder 6 is inflated until the pressure sensor reaches the pressure setting value and the inflation is stopped. At this time, the battery 100 is put into the storage position for formation. When the battery 100 expands during the formation process, the pressure sensor detects that the pressure of the battery 100 expanding and squeezing the first single-layer plate 31 and the second single-layer plate 32 exceeds the set value, and the relief valve discharges a part of the gas. The channel with excessive expansion force of the battery 100 will automatically compensate for the stroke of the piston rod of the cylinder 6 due to the exhaust, until the contact pressure of the first single-layer plate 31 and the second single-layer plate 32 with the battery 100 maintains the set value and the exhaust is stopped.

[0036] The heat dissipation assembly (not shown) includes a heat dissipation fan installed at the bottom of the tray. The heat dissipation fan uses analog quantity to control the fan speed. When the temperature of a certain channel of the layer plate assembly 3 exceeds 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 layer plate assembly 3 drops to the set temperature, the fan speed decreases to maintain a constant speed. Each fan adjusts the speed separately according to the temperature sensor.

[0037] The present invention improves the speed of changing models (the battery spacing remains constant, and there is no need to replace the probe module and the negative pressure module, only the pad needs to be increased or decreased), and the safety of the equipment is improved (storage space heating or factory heating is replaced with tray heating, and the overall heating becomes local heating, which is easier to control and reduces the possibility of accidents). By matching the probe group with the battery 100, the two are positioned with each other, eliminating the cumulative dimensional error caused by the expansion and thickness dimensional error of the lithium battery, and making the negative pressure suction nozzle and negative pressure cup 55 relatively accurately aligned with the injection port of the battery 100, ensuring the excellent airtightness of the negative pressure process and improving the product yield. The use of direct contact heating between the layer plate assembly 3 and the battery 100 can improve the temperature uniformity of the battery and reduce energy loss and waste.

[0038] The preferred implementation modes of the present application are described in detail above, but the present application is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present application.

Claims

1. A cylinder pressure regulating self-heating restraint tray, characterized in that: It comprises an external frame (1), a guide column (2), a layer plate assembly (3), a layer plate hanging plate (4), a negative pressure module follower mechanism (5) and an air path assembly, wherein the guide column (2) is provided with multiple groups and the two ends are respectively fixedly arranged on the upper parts of the two ends of the external frame (1), the layer plate hanging plate (4) is evenly slidably mounted on the guide column, the layer plate assembly (3) is arranged on the layer plate hanging plate (4), the negative pressure module follower mechanism (5) is fixedly arranged on the layer plate assembly (3) and is slidably connected to the external frame (1), the air path assembly is fixedly arranged on the end side of the external frame (1), and the air path assembly is connected to the layer plate assembly (3); The negative pressure module follower mechanism (5) comprises 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 rail (56); the negative pressure cup mounting seat (51) is fixedly mounted on the layer plate assembly (3); the slider connecting seat (52) is fixedly arranged on the layer plate 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 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 connecting seat (52) are respectively slidably connected to the slider rail (56).

2. The cylinder pressure regulating self-heating restraint tray according to claim 1, characterized in that: The layer board assembly (3) comprises a first single-layer layer board (31), a second single-layer layer board (32), an elastic sealing ring (33), a heating plate (34) and a module docking block (35); the second single-layer layer board (32) is connected to the first single-layer layer board (31) in a nested sliding manner; the elastic sealing ring (33) is fixedly arranged on the inner side of the first single-layer layer board (31) and the second single-layer layer board (32), respectively; the inner side elastic sealing rings of the first single-layer layer board (31) and the second single-layer layer board (32) are combined to form a cavity on the inner side; the heating plate (34) is fixedly arranged on the inner side of the first single-layer layer board (31) and the second single-layer layer board (32) and is located in the cavity; the module docking block (35) is fixedly connected to the upper side of the first single-layer layer board (31) or the second single-layer layer board (32); and the two sides of the second single-layer layer board (32) are fixedly connected to the layer board hanging plate (4).

3. The cylinder pressure regulating self-heating restraint tray according to claim 2, characterized in that: The gas circuit assembly comprises a cylinder (6), an air circuit, a pressure sensor, a relief valve, a mechanical exhaust valve and a one-way valve. The cylinder (6) is fixedly arranged on the external frame (1) and is connected to the internal cavity of the layer plate assembly (3) through the air circuit. The pressure sensor, the relief valve, the mechanical exhaust valve and the one-way valve are arranged on the air circuit.

4. The cylinder pressure regulating self-heating restraint tray according to claim 1, characterized in that: It also includes a heat dissipation component, wherein the heat dissipation fan is evenly and fixedly arranged on the inner bottom of the external frame (1).

5. The cylinder pressure regulating self-heating restraint tray according to claim 4, characterized in that: A temperature sensor is arranged inside the outer frame (1).

6. A cylinder pressure regulating self-heating restraint pallet according to any one of claims 1 to 5, characterized in that: The required electrical components and gas circuit and pipeline components are all installed on the inner bottom of the outer frame (1).

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