Detection cabinet for charging and discharging test of energy storage battery module

Abstract

The invention discloses a detection cabinet for charging and discharging test of an energy storage battery module, and relates to the technical field of battery detection, the detection cabinet comprises a detection cabinet body, a conveying table is arranged in the detection cabinet body, the conveying table penetrates through the detection cabinet body, and a plurality of to-be-detected battery bodies are arranged on the conveying table; a test board is arranged in the detection cabinet body; the test bench is integrally provided with an energy storage converter and a monitoring unit, and the detection cabinet body is internally provided with a manipulator used for transporting the battery body on the conveying bench to the test bench; a recycling box is arranged on the side edge of the detection cabinet body, a heat dissipation structure is arranged on the detection cabinet body, sequential detection of battery bodies can be achieved through the mechanical arm, the conveying table and the testing table, qualified products are put back to the conveying table, unqualified products are put in the recycling box, and the problems that in the prior art, batteries are difficult to put in, and the detection efficiency is high are solved. And large-scale production and application of energy storage battery modules and the like are difficult to expand, so that the test efficiency of a production line is low.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, specifically a testing cabinet for charging and discharging testing of energy storage battery modules. Background Technology

[0002] Charge and discharge testing of energy storage battery modules is a key bridge connecting research and development, production and practical application. It is not only related to the safety and reliability of products, but also an important guarantee for promoting technological progress and industry development.

[0003] Chinese invention patent CN116840708B discloses a battery charging and discharging testing device: including a battery compartment, and a battery to be tested placed inside the battery compartment; a charging and discharging device for charging or discharging the battery; a current detection component for detecting the current and voltage of the battery during charging or discharging; a heating plate for heating the battery compartment and a cooling component for cooling the battery compartment; and a circulation component for circulating air inside the battery compartment to accelerate heat exchange.

[0004] However, existing technologies still have shortcomings: Temperature control is achieved through a battery compartment, heating plate, cooling components, and circulation components, and an intermittent power supply method is used to reduce errors caused by battery self-heating. However, the equipment is designed for individual batteries, with cooling fans placed around the battery, which makes it inconvenient to insert the battery and difficult to scale up to large-scale production applications such as energy storage battery modules, resulting in low testing efficiency. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a testing cabinet for charging and discharging testing of energy storage battery modules, which solves the problem that the existing equipment is designed for individual batteries, making it difficult to place and scale up to large-scale production applications such as energy storage battery modules, resulting in low testing efficiency on the production line.

[0006] To achieve the above objectives, this invention proposes a testing cabinet for charging and discharging testing of energy storage battery modules, comprising a testing cabinet body, a conveyor platform disposed within the testing cabinet body, the conveyor platform extending through the testing cabinet body, and a plurality of battery bodies to be tested disposed on the conveyor platform; a testing platform disposed within the testing cabinet body; the testing platform integrating an energy storage converter and a monitoring unit; a robotic arm disposed within the testing cabinet body for transporting the battery bodies on the conveyor platform to the testing platform; a recycling bin disposed on the side of the testing cabinet body; and a heat dissipation structure disposed on the testing cabinet body.

[0007] As a further aspect of the present invention: the test bench is provided with a limiting platform and a wiring terminal; the wiring terminal is electrically connected to the DC input terminal of the energy storage converter, the limiting platform is used to place the battery body to be tested, and the positive and negative terminals of the battery body are connected to the wiring terminal.

[0008] As a further embodiment of the present invention: the test platform is disposed inside the testing cabinet, above the conveyor.

[0009] As a further aspect of the present invention: a pair of first electric slide rails are fixedly installed inside the testing cabinet, and a second electric slide rail is slidably installed on the pair of first electric slide rails.

[0010] As a further aspect of the present invention: a support plate is slidably disposed on a pair of first electric slide rails, and a second electric slide rail is fixedly disposed on the support plate.

[0011] As a further aspect of the present invention: a movable platform is slidably disposed on the second electric slide rail, and a robotic arm is fixedly disposed on the movable platform.

[0012] As a further aspect of the present invention: a through slot is provided at the bottom of the testing cabinet, and the heat dissipation structure includes a baffle plate and a ventilation frame; a pair of ventilation frames and baffle plates are provided, the ventilation frames are fixedly and symmetrically arranged on both sides of the testing cabinet, a slide is fixedly provided at the lower end of the ventilation frame, the baffle plate is slidably arranged on the slide, and a wind-cooling structure, which is a fan, is provided on the side of the ventilation frame away from the baffle plate.

[0013] As a further embodiment of the present invention: an adjustment structure for driving a pair of wind deflectors to move is fixedly provided on the detection cabinet. The adjustment structure includes a driving wheel, a toothed plate, and a driven wheel. The driving wheel and the driven wheel are rotatably mounted on the detection cabinet. A pair of driven wheels are provided, symmetrically arranged on both sides of the driving wheel. The driven wheel meshes with the driving wheel. A toothed plate is provided on the side of the driven wheel. The toothed plate meshes with the driven wheel. A connecting rod is fixedly provided below the toothed plate. The connecting rod is fixedly connected to the wind deflector.

[0014] As a further aspect of the present invention: a pair of through slots are symmetrically provided on the testing cabinet to facilitate the sliding of the connecting rod; a top plate is detachably provided on the testing cabinet, and a drive motor is fixedly provided on the top plate, with the output shaft of the drive motor fixedly connected to the drive wheel.

[0015] As a further aspect of the present invention: a feeding plate is provided on the side of the conveyor, one end of the feeding plate is fixedly connected to the bottom of the conveyor, and the other end leads to the recycling bin.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. A conveyor platform is installed inside the testing cabinet, running through the cabinet and holding several battery cells to be tested. A testing platform is also installed inside the cabinet, integrating an energy storage converter and a monitoring unit. A robotic arm is installed inside the cabinet to transport the battery cells from the conveyor platform to the testing platform. A recycling bin is located on the side of the testing cabinet, and a heat dissipation structure is installed on the cabinet. The battery cells to be tested are placed on the conveyor platform. A pair of first electric slide rails are synchronously driven to move the robotic arm along the direction of the conveyor platform. A second electric slide rail is driven to move the robotic arm laterally, transporting the battery cells to the testing platform for testing. After testing, defective products are removed by the robotic arm and fed into a feeding plate, flowing to the recycling bin for collection. Qualified products are returned to the conveyor platform by the robotic arm and transported to the next process. An activation drive structure moves a pair of baffles, working in conjunction with a cooling system to control the temperature inside the testing cabinet, thus facilitating the testing of the battery cells.

[0017] 2. The testing equipment is integrated into the cabinet, eliminating the need for external testing equipment and automatically managing tests and recording data. Compared to traditional testing cabinets, it is easier to install within factory processes to support production line operations. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention after the top plate is removed; Figure 3 This is a partial cross-sectional structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the testing cabinet of the present invention after removing all side panels. Figure 5 For the present invention Figure 3 Enlarged view of point A; Figure 6 For the present invention Figure 4 Enlarged view of point B.

[0019] In the diagram: 1. Testing cabinet; 2. Conveyor table; 3. Casters; 4. Recycling bin; 5. Feeding plate; 6. Ventilation frame; 7. Drive motor; 8. Top plate; 9. Battery body; 10. Baffle plate; 11. Drive wheel; 12. Straight tooth plate; 13. Driven wheel; 14. Testing table; 15. Limiting table; 16. Terminal block; 17. Robotic arm; 18. Second electric slide rail; 19. First electric slide rail; 20. Moving table; 21. Connecting rod; 22. Slide table. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1-6 As shown, a testing cabinet for charging and discharging testing of energy storage battery modules includes a testing cabinet 1, a conveyor 2 inside the testing cabinet 1, the conveyor 2 penetrating the testing cabinet 1, and several battery bodies 9 to be tested mounted on the conveyor 2; the conveyor 2 is used to transport the batteries to be tested; universal wheels 3 with self-locking function are provided below the testing cabinet 1 and the conveyor 2 to facilitate the operation of the device in conjunction with the production line; a testing platform 14 is provided inside the testing cabinet 1; the testing platform 14 integrates an energy storage converter and a monitoring unit for charging, discharging, and testing the batteries. Specifically, the testing platform 14 is provided with a limit station 15 and a terminal block 16; the terminal block 16 is electrically connected to the DC input terminal of the energy storage converter, the limit station 15 is used to place the battery bodies 9 to be tested, and the positive and negative terminals of the battery bodies 9 are connected to the terminal block 16; the specific testing method is as described in Chinese Invention Patent No. A, "A Battery Charging and Discharging Testing Method". The device, system, and battery management system describe the charging and discharging of the battery via an energy storage converter, wherein an energy release command and a stop energy release command are alternately sent to the energy storage converter, and each energy release command and its adjacent next stop energy release command jointly control a charging cycle; the battery status information during the discharge and charging processes is obtained through a monitoring unit; the difference from the Chinese invention patent CN112834936B, which describes a battery charging and discharging test method, device, system, and battery management system, is that in order to reduce the footprint of the device and to cooperate with the production line, the present invention simplifies the detection method, that is, it does not require setting up multiple sets of detection units to detect the battery pack simultaneously. In this embodiment, a single detection is achieved through the cooperation of the conveyor 2 and the test station 14. Compared with the prior art, the loading rate is simplified, and it can cooperate with the conveyor 2 to achieve automatic loading and unloading, that is, to cooperate with the production line for sequential single detection; The testing cabinet 1 is equipped with a robotic arm 17 for transporting the battery body 9 on the conveyor 2 to the testing table 14. A recycling bin 4 is provided on the side of the testing cabinet 1 for collecting defective products. A feeding plate 5 is provided on the side of the conveyor 2. One end of the feeding plate 5 is fixedly connected to the bottom of the conveyor 2, and the other end leads to the recycling bin 4. After the test is completed, defective products are taken out by the robotic arm 17 and fed into the feeding plate 5. They flow to the recycling bin 4 through the feeding plate 5 and are collected through the recycling bin 4. Qualified products are sent back to the conveyor 2 by the robotic arm 17 and transported to the next process through the conveyor 2. The testing platform 14 is located inside the testing cabinet 1, above the conveyor 2, without affecting the operation of the conveyor 2. A pair of first electric slide rails 19 are fixedly installed inside the testing cabinet 1, and a second electric slide rail 18 is slidably mounted on the pair of first electric slide rails 19. Specifically, a support plate is slidably mounted on the pair of first electric slide rails 19, and the second electric slide rail 18 is fixedly mounted on the support plate. By synchronously driving the pair of first electric slide rails 19, the robot arm 17 moves along the direction of the conveyor 2, facilitating the movement of the battery body 9 from the conveyor 2 to the testing platform 14, and removing qualified products from the testing platform 14. A moving stage 20 is slidably mounted on the second electric slide rail 18, and the robot arm 17 is fixedly mounted on the moving stage 20. By driving the second electric slide rail 18, the robot arm 17 moves laterally, facilitating the movement of unqualified battery bodies 9 from the testing platform 14 to above the unloading plate 5 for collection and processing via the recycling bin 4. To facilitate the operation of the conveyor 2 within the testing cabinet 1, a through slot is provided at the bottom of the testing cabinet 1. The testing platform 14 and the first electric slide rail 19 are installed internally via a frame. This through slot facilitates the passage of the conveyor 2 and also allows for heat dissipation of the testing platform 14 during operation, enabling air circulation inside and outside the testing cabinet 1. To accelerate the cooling of the testing platform 14, or to maintain a constant temperature, a heat dissipation structure is provided on the testing cabinet 1. This structure includes a baffle plate 10 and a ventilation frame 6. A pair of ventilation frames 6 and baffle plates 10 are provided, with the ventilation frames 6 fixed symmetrically. The baffles 10 are adjustable and placed on both sides of the testing cabinet 1. Specifically, a slide table 22 is fixedly installed at the lower end of the ventilation frame 6, and the baffles 10 are slidably mounted on the slide table 22. By sliding the baffles 10, the size of the openings on both sides of the testing cabinet 1 can be controlled. In practice, a cooling structure, such as a fan or blower, can be installed on the side of the ventilation frame 6 away from the baffles 10. The cooling structure does not need to be networked. Temperature control inside the testing cabinet 1 is achieved by controlling the size of the opening closure. A temperature sensor can be integrated on the test bench 14 to achieve more precise control in conjunction with the ventilation frame 6. An adjustment structure for driving a pair of baffles 10 to move is fixedly installed on the testing cabinet 1. The adjustment structure includes a driving wheel 11, a spur gear 12, and a driven wheel 13. The driving wheel 11 and the driven wheel 13 are rotatably mounted on the testing cabinet 1. A pair of driven wheels 13 are provided, symmetrically arranged on both sides of the driving wheel 11, and the driven wheels 13 mesh with the driving wheel 11. A spur gear 12 is provided on the side of the driven wheel 13, and the spur gear 12 meshes with the driven wheel 13. A connecting rod 21 is fixedly installed below the spur gear 12 and is fixedly connected to the baffle 10. A pair of through slots are symmetrically opened on the testing cabinet 1 to facilitate the sliding of the connecting rod 21. The testing cabinet 1 is detachably equipped with... The top plate 8 is specifically snap-fitted, and a drive motor 7 is fixedly installed on the top plate 8. The output shaft of the drive motor 7 is fixedly connected to the drive wheel 11. When the drive motor 7 is started, the drive wheel 11 is driven to rotate, which in turn drives a pair of driven wheels 13 to rotate. The rotation of the driven wheels 13 drives the straight tooth plate 12 to move, and the straight tooth plate 12 drives the connecting rod 21 to move, which in turn drives the baffle plate 10 to move, thereby adjusting the openings on both sides of the testing cabinet 1. With the help of the air-cooling structure, the temperature inside the testing cabinet 1 is controlled. In this embodiment, the drive motor 7, the test platform 14, and the robot arm 17 are integrated and controlled by a PLC control system. With the help of the external air-cooling structure, the constant temperature testing of the battery body 9 is achieved.

[0022] Working principle: The battery body 9 to be tested is placed on the conveyor table 2. The first electric slide rail 19 is driven synchronously to move the robot arm 17 along the direction of the conveyor table 2. The second electric slide rail 18 is driven to move the robot arm 17 laterally. The robot arm 17 transports the battery body to be tested to the test table 14 for testing. After the test is completed, the robot arm 17 takes out the unqualified products and sends them to the unloading plate 5. The unloading plate 5 flows to the recycling box 4 for collection. The recycling box 4 collects the qualified products. The robot arm 17 sends them back to the conveyor table 2 and transports them to the next process. The drive motor 7 is started to drive the drive wheel 11 to rotate, which in turn drives the pair of driven wheels 13 to rotate. The rotation of the driven wheels 13 drives the straight tooth plate 12 to move. The straight tooth plate 12 drives the connecting rod 21 to move, which in turn drives the baffle plate 10 to move, thereby adjusting the openings on both sides of the test cabinet 1. With the help of the air-cooling structure, the temperature inside the test cabinet 1 is controlled.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., 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; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A detection cabinet for energy storage battery module charge-discharge test, comprising a detection cabinet body (1), a conveying table (2) is arranged in the detection cabinet body (1), the conveying table (2) penetrates through the detection cabinet body (1), and a plurality of to-be-detected battery bodies (9) are arranged on the conveying table (2); characterized in that, The detection cabinet (1) is provided with a test table (14); the test table (14) is integrally provided with an energy storage converter and a monitoring unit, the detection cabinet (1) is provided with a mechanical hand (17) for transporting the battery body (9) on the conveying table (2) to the test table (14); the side of the detection cabinet (1) is provided with a recycling box (4), and the detection cabinet (1) is provided with a heat dissipation structure.

2. The detection cabinet for charging and discharging test of energy storage battery module according to claim 1, characterized in that, The test table (14) is provided with a limiting table (15) and a wiring terminal (16); the wiring terminal (16) is electrically connected with the direct current side input end of the energy storage converter, and the limiting table (15) is used for placing the battery body (9) to be detected. The positive and negative electrodes of the battery body (9) are connected with the wiring terminal (16).

3. The detection cabinet for charging and discharging test of energy storage battery module according to claim 1, characterized in that, The test table (14) is arranged in the detection cabinet (1) and above the conveying table (2).

4. The detection cabinet for charging and discharging test of energy storage battery module according to claim 1, characterized in that, A pair of first electric sliding rails (19) are fixedly arranged in the detection cabinet (1), and a second electric sliding rail (18) is slidably arranged on the pair of first electric sliding rails (19).

5. The detection cabinet for charging and discharging test of energy storage battery module according to claim 4, characterized in that, A pair of first electric sliding rails (19) are slidably arranged on the pair of first electric sliding rails (19), and a second electric sliding rail (18) is fixedly arranged on the bearing plate.

6. The detection cabinet for charging and discharging test of energy storage battery module according to claim 4, characterized in that, The second electric sliding rail (18) is slidably arranged with a moving table (20), and the moving table (20) is fixedly arranged with a mechanical hand (17).

7. The detection cabinet for charging and discharging test of energy storage battery module according to claim 1, characterized in that, A through slot is formed below the detection cabinet (1), and the heat dissipation structure comprises a wind shield (10) and a ventilation frame (6); the ventilation frame (6) and the wind shield (10) are arranged in pairs, the ventilation frame (6) is fixedly and symmetrically arranged on the two sides of the detection cabinet (1), the lower end of the ventilation frame (6) is fixedly provided with a sliding table (22), the wind shield (10) is slidably arranged on the sliding table (22), a forced air cooling structure is arranged on the side of the ventilation frame (6) away from the wind shield (10), and the forced air cooling structure is a fan.

8. The detection cabinet for charging and discharging test of energy storage battery module according to claim 7, characterized in that, An adjusting structure for driving a pair of wind shields (10) to move is fixedly arranged on the detection cabinet (1), the adjusting structure comprises a driving wheel (11), a straight toothed plate (12) and a driven wheel (13); the driving wheel (11) and the driven wheel (13) are rotatably arranged on the detection cabinet (1), the driven wheel (13) is arranged in pairs and symmetrically on the two sides of the driving wheel (11), the driven wheel (13) is engaged with the driving wheel (11), the side of the driven wheel (13) is provided with a straight toothed plate (12), the straight toothed plate (12) is engaged with the driven wheel (13), the lower side of the straight toothed plate (12) is fixedly provided with a connecting rod (21), and the connecting rod (21) is fixedly connected with the wind shield (10).

9. The detection cabinet for charging and discharging test of energy storage battery module according to claim 8, characterized in that, A pair of through slots for facilitating sliding of the connecting rod (21) are symmetrically formed on the detection cabinet (1); a top plate (8) is detachably arranged on the detection cabinet (1), a driving motor (7) is fixedly arranged on the top plate (8), and the output shaft of the driving motor (7) is fixedly connected with the driving wheel (11).

10. The detection cabinet for charging and discharging test of energy storage battery module according to claim 1, characterized in that, The side of the conveying table (2) is provided with a discharging plate (5), one end of the discharging plate (5) is fixedly connected with the bottom of the conveying table (2), and the other end leads to the recycling box (4).

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