Battery module temperature uniformity testing device

Abstract

The utility model discloses a battery module temperature uniformity testing device, and relates to the technical field of detection equipment. A plurality of supporting plates are arranged at the upper end of the testing table, an auxiliary frame is fixedly connected to the upper end of the testing table, a testing box is arranged on the inner side of the auxiliary frame, the lower end of the testing box is open, a height adjusting mechanism is arranged between the auxiliary frame and the testing box, and a temperature adjusting mechanism is arranged on the outer side of the testing box. During detection, the test box is arranged on the outer side of the battery module under the action of the height adjusting mechanism, the two conductive contact rods are connected with the positive electrode and the negative electrode of the battery module respectively under the action of the buffer mechanism, a path is formed between the conductive contact rods and electric equipment, and the contact type temperature detection sensor abuts against the surface of the battery module to detect the temperature of the battery module. The temperature of the upper position of the battery module can be detected, the environment temperature detection mechanism can simulate different temperature environments, the accuracy and practicability of the test are improved, and the performance of the battery module under different temperature conditions can be comprehensively evaluated.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a device for testing the temperature uniformity of a battery module. Background Art

[0002] A battery module is a unit assembled by multiple battery cells, used to provide higher voltage and capacity, and is an important part of a battery system. It usually consists of battery cells, connectors, a battery management system (BMS), and a housing, etc. The battery cells store and release electrical energy through chemical reactions, the connectors connect the battery cells in series or parallel, the BMS is responsible for monitoring and managing the charging and discharging process of the battery, and the housing provides physical protection and heat dissipation functions. The battery module is widely used in fields such as electric vehicles, hybrid vehicles, and energy storage systems to meet various power demands.

[0003] As a core power component, the stability and safety of the performance of the battery module are crucial. The temperature uniformity of the battery module is one of the key factors affecting its performance. The detection of the temperature at each position of the traditional battery module mainly relies on manual detection, and the operation is relatively cumbersome. Therefore, the proposed solution of this application is a device for testing the temperature uniformity of a battery module to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for testing the temperature uniformity of a battery module, which solves the technical problems proposed in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A device for testing the temperature uniformity of a battery module, including a test bench, several support plates are arranged at the upper end of the test bench, a switching motor is fixedly connected to the lower end of the test bench, the output end of the switching motor penetrates through the test bench and is fixedly connected to a rotating frame, several support plates are fixedly connected to the rotating frame, an auxiliary frame is fixedly connected to the upper end of the test bench, a test box is arranged inside the auxiliary frame, the lower end of the test box is open, multi-stage limit telescopic rods are symmetrically and fixedly connected to the left and right sides of the upper end of the test box, the upper ends of the multi-stage limit telescopic rods are fixedly connected to the upper inner wall of the auxiliary frame, a height adjustment mechanism is arranged between the auxiliary frame and the test box, a temperature adjustment through hole is opened on the side wall of the test box, a temperature adjustment mechanism is arranged outside the test box, the output end of the temperature adjustment mechanism is communicated with the test box through the temperature adjustment through hole, several buffer mechanisms are fixedly connected to the upper inner wall of the test box, conductive contact rods are arranged at the lower ends of two of the buffer mechanisms, and contact type temperature detection sensors are arranged at the lower ends of the other buffer mechanisms.

[0006] Preferably, a sealing groove and a placement groove are formed in the upper end of the support plate. The sealing groove is adapted to the lower port of the test chamber. A sealing gasket is arranged inside the sealing groove. The placement groove is located inside the sealing groove and is used for placing the battery module. A plurality of the buffer mechanisms are all located directly above the placement groove.

[0007] Preferably, the buffer mechanism includes a buffer cylinder. The buffer cylinder is fixed on the upper inner wall of the test chamber. A sliding plate is slidably connected inside the buffer cylinder. The upper end of the sliding plate is fixedly connected with a buffer spring. The upper end of the buffer spring is fixedly connected with the upper inner wall of the buffer cylinder. The lower end of the sliding plate is fixedly connected with a buffer sliding rod. The lower end of the buffer sliding rod penetrates through the upper side wall of the buffer cylinder and extends below the buffer cylinder. The buffer sliding rod is slidably connected with the lower side wall of the buffer cylinder.

[0008] Preferably, a test electrical device is arranged on the outer side wall of the test chamber. Both of the conductive contact rods are electrically connected to the test electrical device. An energization indicator light is arranged on the test electrical device. An ambient temperature detection sensor is arranged on the inner side wall of the test chamber. The ambient temperature detection sensor is used for detecting the internal temperature of the test chamber.

[0009] Preferably, the height adjustment mechanism includes a height adjustment screw rod and an adjustment motor. The lower end of the height adjustment screw rod is fixedly connected with the upper end of the test chamber. The adjustment motor is fixed on the upper end of the auxiliary frame. The output end of the adjustment motor is fixedly connected with a driving gear. A driven gear is rotatably connected to the upper end of the auxiliary frame. The driven gear meshes with the driving gear. The upper end of the height adjustment screw rod sequentially penetrates through the upper side wall of the auxiliary frame and the driven gear and extends above the driven gear. The height adjustment screw rod is slidably connected with the upper side wall of the auxiliary frame through a limit sliding groove. The height adjustment screw rod is threadedly connected with the driven gear.

[0010] Preferably, a detection data display screen is arranged on the test bench.

[0011] Compared with the related art, a battery module temperature uniformity test device provided by the present utility model has the following beneficial effects:

[0012] 1. The present utility model provides a test device for the temperature uniformity of a battery module. In this device, a placement groove is provided above the support plate to limit the position of the battery module. During testing, under the action of the height adjustment mechanism, the test box is placed outside the battery module. Under the action of the buffer mechanism, two conductive contact rods are respectively connected to the positive and negative electrodes of the battery module to form a circuit with the electrical equipment. The contact-type temperature detection sensor is abutted against the surface of the battery module, so as to detect the temperature at each position on the upper end of the battery module. Under the action of the buffer spring, it is ensured that both the contact-type temperature detection sensor and the conductive contact rod are always in contact with the battery module, ensuring the normal progress of the test. This device is simple to operate, without the need for manual frequent replacement of detection points for detection, greatly improving the detection efficiency and accuracy.

[0013] 2. The present utility model provides a test device for the temperature uniformity of a battery module. In this device, a temperature adjustment mechanism is provided, and an ambient temperature detection mechanism is provided inside the test box. During use, different temperature environments can be simulated during the test process, improving the accuracy and practicality of the test, and being able to comprehensively evaluate the performance of the battery module under different temperature conditions.

[0014] 3. The present utility model provides a test device for the temperature uniformity of a battery module. Through the detection data display screen, users can intuitively view the test data and results, improving the test efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of another angle of the present utility model;

[0017] Figure 3 is Figure 2 a partial enlarged view at A in

[0018] Figure 4 is a three-dimensional structural schematic diagram of the test bench of the present utility model;

[0019] Figure 5 is a structural schematic diagram showing the bottom of the test bench of the present utility model;

[0020] Figure 6 is a three-dimensional sectional structural schematic diagram of the test box of the present utility model;

[0021] Figure 7 is a three-dimensional sectional structural schematic diagram of the position of the conductive contact rod of the present utility model;

[0022] Figure 8 is a three-dimensional sectional structural schematic diagram of the position of the contact-type temperature detection sensor of the present utility model;

[0023] Figure 9 For Figure 8 Partial enlarged view at position B in

[0024] In the figure: 1. Test bench; 2. Switching motor; 3. Rotating frame; 4. Support plate; 5. Sealing groove; 6. Placing groove; 7. Detection data display screen; 8. Auxiliary frame; 9. Height adjustment mechanism; 10. Test box; 11. Test electrical equipment; 12. Temperature adjustment mechanism; 13. Ambient temperature detection sensor; 14. Buffer mechanism; 15. Conductive contact rod; 16. Contact type temperature detection sensor; 17. Temperature adjustment through hole; 18. Height adjustment screw rod; 19. Multi-stage limit telescopic rod; 20. Driven gear; 21. Adjusting motor; 22. Driving gear; 23. Buffer cylinder; 24. Buffer spring; 25. Sliding plate; 26. Buffer sliding rod. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-9 , the present invention provides a technical solution: a battery module temperature uniformity testing device, including a test bench 1, several support plates 4 are arranged on the upper end of the test bench 1, a switching motor 2 is fixedly connected to the lower end of the test bench 1, the output end of the switching motor 2 penetrates through the test bench 1 and is fixedly connected to a rotating frame 3, several support plates 4 are fixedly connected to the rotating frame 3, an auxiliary frame 8 is fixedly connected to the upper end of the test bench 1, a test box 10 is arranged inside the auxiliary frame 8, the lower end of the test box 10 is open, multi-stage limit telescopic rods 19 are symmetrically and fixedly connected to the left and right sides of the upper end of the test box 10, and the upper ends of the multi-stage limit telescopic rods 19 are fixedly connected to the upper inner wall of the auxiliary frame 8. A height adjustment mechanism 9 is arranged between the auxiliary frame 8 and the test box 10. A temperature adjustment through hole 17 is opened on the side wall of the test box 10, a temperature adjustment mechanism 12 is arranged outside the test box 10, and the output end of the temperature adjustment mechanism 12 communicates with the test box 10 through the temperature adjustment through hole 17. Several buffer mechanisms 14 are fixedly connected to the upper inner wall of the test box 10, conductive contact rods 15 are arranged at the lower ends of two buffer mechanisms 14, and contact type temperature detection sensors 16 are arranged at the lower ends of the other buffer mechanisms 14;

[0027] The upper end of the support plate 4 is provided with a sealing groove 5 and a placement groove 6. The sealing groove 5 is adapted to the lower port of the test box 10. A sealing gasket is arranged inside the sealing groove 5. The placement groove 6 is located inside the sealing groove 5 and is used for placing the battery module. A plurality of buffer mechanisms 14 are all located directly above the placement groove 6;

[0028] The buffer mechanism 14 includes a buffer cylinder 23. The buffer cylinder 23 is fixed on the upper inner wall of the test box 10. A sliding plate 25 is slidably connected inside the buffer cylinder 23. The upper end of the sliding plate 25 is fixedly connected with a buffer spring 24. The upper end of the buffer spring 24 is fixedly connected with the upper inner wall of the buffer cylinder 23. The lower end of the sliding plate 25 is fixedly connected with a buffer sliding rod 26. The lower end of the buffer sliding rod 26 penetrates through the upper side wall of the buffer cylinder 23 and extends below the buffer cylinder 23. The buffer sliding rod 26 is slidably connected with the lower side wall of the buffer cylinder 23. During the test, as the test box 10 moves downward, the conductive contact rod 15 and the contact type temperature detection sensor 16 at the lower end of the buffer mechanism 14 are respectively in contact with the positive and negative electrodes of the battery module and the upper end surface of the battery module. Under the action of the buffer spring 24, it is ensured that both the contact type temperature detection sensor 16 and the conductive contact rod 15 are always in contact with the battery module, ensuring the normal progress of the test;

[0029] A test electrical device 11 is arranged on the outer side wall of the test box 10. Both conductive contact rods 15 are electrically connected to the test electrical device 11. An energization indicator light is arranged on the test electrical device 11, which is convenient for the staff to understand whether the circuit is connected. An ambient temperature detection sensor 13 is arranged on the inner side wall of the test box 10. The ambient temperature detection sensor 13 is used to detect the internal temperature of the test box 10. During the test, the temperature adjustment mechanism 12 can be used to simulate different temperature environments, improving the accuracy and practicality of the test, and being able to comprehensively evaluate the performance of the battery module under different temperature conditions;

[0030] The height adjustment mechanism 9 includes a height adjustment screw rod 18 and an adjustment motor 21. The lower end of the height adjustment screw rod 18 is fixedly connected with the upper end of the test box 10. The adjustment motor 21 is fixed on the upper end of the auxiliary frame 8. The output end of the adjustment motor 21 is fixedly connected with a driving gear 22. A driven gear 20 is rotatably connected to the upper end of the auxiliary frame 8. The driven gear 20 meshes with the driving gear 22. The upper end of the height adjustment screw rod 18 sequentially penetrates through the upper side wall of the auxiliary frame 8 and the driven gear 20 and extends above the driven gear 20. The height adjustment screw rod 18 is slidably connected with the upper side wall of the auxiliary frame 8 through a limit sliding groove. The height adjustment screw rod 18 is threadedly connected with the driven gear 20. When adjusting the height of the test box 10, the adjustment motor 21 in the height adjustment mechanism 9 is used to drive the driving gear 22 to rotate, and the driving gear 22 is used to drive the driven gear 20 to rotate. With the cooperation of the driven gear 20 and the height adjustment screw rod 18, the test box 10 is driven to move in the up and down directions;

[0031] A detection data display screen 7 is provided on the test bench 1. Through the detection data display screen 7, users can intuitively view the test data and results, improving the efficiency and convenience of the test.

[0032] Working principle: During use, the staff places the battery module to be detected in the placement groove 6 on the support plate 4, and uses the switching motor 2 to drive the rotating frame 3 and the support plate 4 to rotate, moving the support carrying the battery module to be detected directly below the test box 10. Pause the switching motor 2, and use the adjustment motor 21 in the height adjustment mechanism 9 to drive the driving gear 22 to rotate. Use the driving gear 22 to drive the driven gear 20 to rotate. With the cooperation of the driven gear 20 and the height adjustment screw rod 18, drive the test box 10 to move downward. As the test box 10 moves downward, the conductive contact rod 15 and the contact type temperature detection sensor 16 at the lower end of the buffer mechanism 14 are respectively in contact with the positive and negative electrodes of the battery module and the upper end surface of the battery module. Under the action of the buffer spring 24, ensure that the contact type temperature detection sensor 16 and the conductive contact rod 15 are always in contact with the battery module, ensuring the normal progress of the test. When the lower port of the test box 10 extends into the sealing groove 5, pause. Use the two conductive contact rods 15 to connect the battery module. At this time, the test electrical equipment 11 works, indicating that the battery module can be used normally. As the test time of the battery module extends, heat is generated on the surface of the battery module. Use the contact type temperature detection sensor to detect the temperature at the upper end surface position of the battery module, and display the detection data on the detection data display screen 7. When an abnormality occurs, an alarm prompt is given; at the same time, an ambient temperature detection mechanism is provided in the test box 10, and different temperature environments can be simulated during the test process, improving the accuracy and practicality of the test, and being able to comprehensively evaluate the performance of the battery module under different temperature conditions. After the detection is completed, use the height adjustment mechanism 9 to move the test box 10 above the battery module, and use the switching motor 2 to drive the rotating frame 3 to rotate, thereby moving the detected battery module out, and moving the battery module on the next support plate 4 below the test box 10 for detection. During the detection of the battery module, the staff can place the next battery module to be detected in the placement groove 6 in advance, greatly improving the test efficiency.

Claims

1. A battery module temperature uniformity testing device, comprising a test bench (1), characterized in that: The upper end of the test bench (1) is provided with a plurality of support plates (4); the lower end of the test bench (1) is fixedly connected to a switching motor (2); the output end of the switching motor (2) passes through the test bench (1) and is fixedly connected to a rotating frame (3); the plurality of support plates (4) are fixedly connected to the rotating frame (3); the upper end of the test bench (1) is fixedly connected to an auxiliary frame (8); a test box (10) is provided inside the auxiliary frame (8); the lower end of the test box (10) is open; the upper left and right sides of the test box (10) are symmetrically fixedly connected to multi-stage limit telescopic rods (19); the upper ends of the multi-stage limit telescopic rods (19) are connected to the auxiliary frame (8) The auxiliary frame (8) is fixedly connected to the upper inner wall of the test box (10); a height adjustment mechanism (9) is provided between the auxiliary frame (8) and the test box (10); a temperature adjustment through hole (17) is provided on the side wall of the test box (10); a temperature adjustment mechanism (12) is provided on the outside of the test box (10); an output end of the temperature adjustment mechanism (12) is connected to the test box (10) through the temperature adjustment through hole (17); a plurality of buffer mechanisms (14) are fixedly connected to the upper inner wall of the test box (10); a conductive contact rod (15) is provided at the lower end of two of the buffer mechanisms (14); and a contact temperature detection sensor (16) is provided at the lower end of the other buffer mechanisms (14).

2. A battery module temperature uniformity testing device according to claim 1, characterized in that: The upper end of the support plate (4) is provided with a sealing groove (5) and a placement groove (6); the sealing groove (5) is adapted to fit the lower end of the test box (10); a sealing gasket is provided inside the sealing groove (5); the placement groove (6) is located inside the sealing groove (5); the placement groove (6) is used to place a battery module; and a plurality of the buffer mechanisms (14) are located directly above the placement groove (6).

3. A battery module temperature uniformity testing device according to claim 2, characterized in that: The buffer mechanism (14) comprises a buffer cylinder (23), the buffer cylinder (23) being fixed on the upper inner wall of the test box (10), a sliding plate (25) being slidably connected inside the buffer cylinder (23), a buffer spring (24) being fixedly connected to the upper end of the sliding plate (25), the upper end of the buffer spring (24) being fixedly connected to the upper inner wall of the buffer cylinder (23), a buffer sliding rod (26) being fixedly connected to the lower end of the sliding plate (25), the lower end of the buffer sliding rod (26) penetrating the upper wall of the buffer cylinder (23) and extending to the bottom of the buffer cylinder (23), and the buffer sliding rod (26) being slidably connected to the lower wall of the buffer cylinder (23).

4. A battery module temperature uniformity testing device according to claim 1, characterized in that: A test electrical device (11) is arranged on the outer wall of the test box (10), the two conductive contact rods (15) are electrically connected to the test electrical device (11), a power-on indicator light is arranged on the test electrical device (11), and an ambient temperature detection sensor (13) is arranged on the inner wall of the test box (10), the ambient temperature detection sensor (13) is used to detect the internal temperature of the test box (10).

5. A battery module temperature uniformity testing device according to claim 1, characterized in that: The height adjustment mechanism (9) comprises a height adjustment screw rod (18) and an adjustment motor (21); the lower end of the height adjustment screw rod (18) is fixedly connected to the upper end of the test box (10); the adjustment motor (21) is fixed to the upper end of the auxiliary frame (8); the output end of the adjustment motor (21) is fixedly connected to a driving gear (22); the upper end of the auxiliary frame (8) is rotatably connected to a driven gear (20); the driven gear (20) is meshed with the driving gear (22); the upper end of the height adjustment screw rod (18) sequentially penetrates the upper side wall of the auxiliary frame (8) and the driven gear (20) and extends to the top of the driven gear (20); the height adjustment screw rod (18) is slidably connected to the upper side wall of the auxiliary frame (8) via a limiting sliding groove; the height adjustment screw rod (18) is threadedly connected to the driven gear (20).

6. A battery module temperature uniformity testing device according to claim 1, characterized in that: The test bench (1) is provided with a detection data display screen (7).

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