Battery test box

Abstract

The invention provides a battery test box which comprises a box body, a box door is hinged to the box body, a tray is arranged in the box body in a sliding mode in the horizontal direction, a supporting rod is fixedly arranged on the inner wall of the box body in the horizontal direction, a sliding block is fixedly arranged on the side wall of the tray, and the bottom of the sliding block is in sliding connection with the top of the supporting rod. A limiting piece is arranged on the sliding block, a containing bin is arranged on the tray, a plurality of containing grooves are evenly formed in the containing bin in the length direction of the containing bin, one end of each containing groove is open, a blocking piece is arranged on each containing groove, a vent hole is formed in the top of each containing groove, and the containing bin is arranged on the tray in the length direction of the sliding block in a sliding mode. And a first driving assembly is arranged on the sliding block and is used for driving the placement bin to move, so that the reliability of battery detection can be improved, heat accumulation caused by battery accumulation is avoided, and normal detection of batteries is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of battery testing, and in particular to a battery testing chamber. Background Art

[0002] The contents of this section merely provide background information related to the present application and may not constitute prior art.

[0003] Battery test chamber is an important equipment for evaluating battery performance, safety and life. It is widely used in electric vehicles, energy storage systems, mobile devices and other fields. It can simulate various environmental conditions and usage scenarios to conduct comprehensive testing and analysis of batteries. It can simulate various extreme high or low temperature environments to test the performance of batteries at different temperatures. It can set a variety of charging and discharging modes to evaluate the cycle life and capacity attenuation of the battery. It can record the voltage and current data of the battery in real time, analyze the key parameters such as the change of the internal resistance and energy efficiency of the battery, and verify the safety of the battery under abnormal conditions by performing overcharge, over-discharge, short-circuit protection and other tests on the battery. Through the data acquisition system, it records various parameters during the test and provides data analysis reports to help users understand the true performance of the battery.

[0004] Existing battery test chambers generally include a chamber body, a chamber door closed on the chamber body by a locking mechanism, the inner liner of the chamber body is made of stainless steel argon arc welding, the outer liner of the chamber body is made of steel plate sprayed with plastic, the hot air circulation system consists of a fan and air duct that can operate continuously at high temperature, an independent temperature alarm device is provided in the chamber body, and it will automatically interrupt when the preset temperature is exceeded, and a tempered glass observation window is provided on the chamber door. When testing the experimental battery, the battery is usually placed in a tray, and then the tray is placed in the chamber body to test the battery.

[0005] However, the above-mentioned related technologies have the following defects. Since there are obvious differences in the sizes of the batteries to be tested, the batteries need to be placed on a tray one by one, and then the tray is pushed into the box along the track on the box for testing. In the process of pushing the tray, the batteries on the tray are prone to slide, causing the batteries to be piled up in the same place. When conducting high-temperature tests, heat is easily accumulated between the stacked batteries, which has a serious impact on the normal detection of the batteries and may even cause the batteries to swell and explode, causing adverse effects on the normal use of the experimental equipment. Summary of the invention

[0006] In order to solve the above technical problems, the purpose of the present application is to provide a battery testing box, which can improve the reliability of battery detection, avoid heat accumulation caused by battery stacking, and ensure normal battery detection.

[0007] The purpose of this application is achieved through the following technical solutions: The cam is provided with a plurality of locking plates, the locking plates being arranged on the top of the cam and the locking cam being arranged on the bottom of the cam.

[0008] In some possible embodiments, a rotating shaft is rotatably arranged in the vent hole, and a plurality of the rotating shafts are evenly arranged in the vent hole along the horizontal direction. A guide plate is coaxially fixed on each rotating shaft, and a second driving component is arranged on the sliding block, and the second driving component is used to drive the rotating shaft to rotate.

[0009] In some possible embodiments, a strip groove is provided on the side wall of the sliding block along the length direction of the sliding block, a strip block is slidably arranged in the strip groove, the strip block is fixedly connected to the side wall of the placement bin, the first driving component is used to drive the strip block to move in the strip groove, a receiving groove is provided on the side wall of the placement bin, the end of the rotating shaft is rotatably arranged in the receiving groove, a first gear is coaxially fixedly sleeved on the rotating shaft, a chain is arranged in the receiving groove, the chain is wound around the first gear, and the second driving component is used to drive the chain to rotate.

[0010] In some possible embodiments, the first driving assembly includes a driving shaft and a lead screw, the lead screw is rotatably disposed in the strip groove along the length direction of the strip groove, the strip block is threadedly sleeved on the lead screw, the driving shaft is rotatably disposed on the sliding block, and the driving shaft is drivingly connected to the lead screw; The second driving assembly includes a rack and a second gear. A transmission shaft is rotatably arranged on the outer wall of the placement bin. The transmission shaft is coaxially and fixedly connected to one of the rotating shafts. The second gear is coaxially fixedly sleeved on the end of the transmission shaft away from the rotating shaft. The rack is fixedly arranged on the sliding block, and the second gear is meshed with the rack.

[0011] In some possible embodiments, the sealing member is configured as a baffle, and a mounting shaft is rotatably arranged at the opening of the placement groove, the sealing plate is fixedly connected to the mounting shaft along the length direction of the mounting shaft, and a first elastic member is arranged on the placement bin, and the first elastic member is used to drive the sealing plate to deflect toward the side end opening of the placement groove, and the side wall of the sealing plate is used to abut against the side end opening of the placement groove.

[0012] In some possible embodiments, a driving motor is arranged on the box body, a clamping block is fixedly arranged at the end of the output shaft of the driving motor, a connecting sleeve is arranged at the end of the driving shaft away from the screw along the axial direction of the driving shaft, and a clamping groove for the clamping block to be inserted is arranged at the end of the connecting sleeve away from the driving shaft.

[0013] In some possible embodiments, a connecting groove is opened on the driving shaft along the axial direction of the driving shaft, a connecting block is slidably arranged in the connecting groove, a connecting hole is coaxially opened at one end of the connecting sleeve close to the driving shaft, the driving shaft is slidably passed through the connecting hole, the connecting block is fixedly connected to the inner wall of the connecting hole, and a second elastic member is arranged in the connecting groove, and the second elastic member is used to drive the connecting block to move in a direction away from the driving shaft.

[0014] In some possible embodiments, the limiting member is configured as a limiting roller, and a mounting groove is provided at the bottom of the sliding block. A plurality of the mounting grooves are evenly arranged along the length direction of the sliding block. A limiting roller is rotatably arranged in each mounting groove. The bottom of the limiting roller is in rolling contact with the top of the support rod, and a limiting hole is provided on the support rod. The number of the limiting holes is matched with the mounting groove. The limiting hole is used for the limiting roller to be inserted, and the length of the limiting hole is smaller than the diameter of the limiting roller.

[0015] In some possible embodiments, two placement bins are provided, two bar blocks are provided in the bar groove, the two bar blocks are fixedly connected to the two placement bins in a one-to-one correspondence, the lead screw is provided as a bidirectional lead screw, two spiral grooves with opposite rotation directions are provided at both ends of the lead screw, the two bar blocks are respectively threadedly sleeved on the two ends of the lead screw, and as the lead screw rotates, the two bar blocks move in the bar groove toward or away from each other.

[0016] In some possible embodiments, a sliding layer is provided at the bottom of the placement bin, and the sliding layer is used for sliding connection with the top of the tray.

[0017] In summary, the technical solution of the embodiment of the present application has at least the following advantages and beneficial effects: 1. In actual use, when the battery needs to be tested, first put the battery into the placement slot on the placement bin, and close the side opening of the placement slot with a sealing member. Since one battery corresponds to one placement slot on the tray, the accumulation of batteries on the baffle can be effectively avoided, thereby effectively avoiding heat accumulation caused by battery accumulation, ensuring the reliability of battery testing, and improving the protection effect of the battery and the testing equipment; 2. During the detection process, hot air enters the placement slot through the vent holes at the top of the placement slot. During this process, the airflow passing through the vent holes is guided and directed by the guide plate. At the same time, the second driving component drives the rotating shaft to rotate and then drives the guide plate to rotate, so that the airflow can enter the placement slot evenly, further improving the accuracy and reliability of battery detection; 3. During the battery detection process, the first driving component drives the placement bin to move on the tray, and then drives the battery to move on the tray. In this process, the uniformity of the airflow entering the placement slot can be further improved, thereby further improving the accuracy and reliability of battery detection; 4. When placing the tray, the position of the sliding block on the support rod is limited by the limiter. During the placement process, the limiter can effectively reduce the friction between the bottom of the sliding block and the support rod, which facilitates the installation of the tray and further improves the convenience of the overall device during actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the front structure of the box body of the embodiment of the present application; Figure 3 for Figure 2 AA section view in; Figure 4 This is a schematic diagram of the structure of a tray according to an embodiment of the present application; Figure 5 A cross-sectional view of a sliding block according to an embodiment of the present application; Figure 6 A cross-sectional view of a storage bin according to an embodiment of the present application; Figure 7 This is a schematic diagram of the structure of a sealing member according to an embodiment of the present application; Figure 8 A cross-sectional view of a connecting sleeve according to an embodiment of the present application; Fig. 9 for Figure 8 A magnified view of part A in FIG. Fig.10 Schematic diagram of the structure of the limiting member of the embodiment of the present application.

[0019] Icons: 1. Box body; 11. Box door; 12. Tray; 13. Hot air blower; 14. Air inlet and outlet; 2. Support rod; 21. Sliding block; 22. Limiting piece; 23. Strip groove; 24. Strip block; 25. Accommodating groove; 26. First gear; 27. Chain; 3. Storage bin; 31. Storage groove; 32. Sealing piece; 33. Vent; 4. First drive assembly; 41. Drive shaft; 42. Lead screw; 5. Rotating shaft; 51. Drain plate; 6. Second drive assembly; 61. Rack; 62. Second gear; 63. Transmission shaft; 7. Drive motor; 71. Block; 72. Connecting sleeve; 73. Blocking groove; 74. Connecting groove; 75. Connecting block; 76. Connecting hole; 77. Second elastic piece; 81. Limiting hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] The following reference Figures 1 to 10 This application is described in further detail.

[0022] Reference Figure 1 , Figure 2 and Figure 3 A battery test box includes a box body 1, a box door 11 is hinged on the box body 1, two boxes 11 are provided, and the two boxes 11 are arranged as double doors. A tray 12 is slidably arranged in the box body 1 along the horizontal direction. Figure 3 As shown, a hot air blower 13 is arranged in the box body 1, and an air inlet and outlet 14 is arranged on the top of the box body 1.

[0023] Among them, as an implementation method of this application, refer to Figure 4 A support rod 2 is fixedly arranged on the inner wall of the box body 1 in the horizontal direction, and two support rods 2 are arranged. A sliding block 21 is fixedly arranged on the side wall of the tray 12, and the bottom of the sliding block 21 is slidably connected to the top of the support rod 2. A limiting member 22 is arranged on the sliding block 21, and the limiting member 22 is used to limit the position of the sliding block 21 on the support rod 2. A placement bin 3 is arranged on the tray 12, and a plurality of placement grooves 31 are evenly opened on the placement bin 3 along the length direction of the placement bin 3. Figure 3As an embodiment of the present application, three placement slots 31 are provided in each placement bin 3, and the placement slots 31 are used to accommodate batteries to be tested. One end of the placement slots 31 is open, and a sealing member 32 is provided on the placement slots 31. The sealing member 32 is used to close the side end opening of the placement slots 31, and a vent hole 33 is provided on the top of the placement slots 31. The placement bin 3 is slidably provided on the tray 12 along the length direction of the sliding block 21.

[0024] Reference Figure 5 , 6 A first driving assembly 4 is provided on the sliding block 21, and the first driving assembly 4 is used to drive the placement bin 3 to move.

[0025] Reference Figure 5 , 6 A rotating shaft 5 is rotatably arranged in the vent hole 33, and a plurality of rotating shafts 5 are evenly arranged in the vent hole 33 along the horizontal direction. A guide plate 51 is coaxially fixed on each rotating shaft 5, and a second driving assembly 6 is arranged on the sliding block 21, and the second driving assembly 6 is used to drive the rotating shaft 5 to rotate.

[0026] During the detection process, hot air enters the placement groove 31 through the vent 33 at the top of the placement groove 31. During this process, the airflow passing through the vent 33 is drained and guided by the guide plate 51. At the same time, the second driving component 6 drives the rotating shaft 5 to rotate and then drives the guide plate 51 to rotate, so that the airflow can enter the placement groove 31 evenly, further improving the accuracy and reliability of battery detection.

[0027] Among them, refer to Figure 5 , 6 A strip groove 23 is provided on the side wall of the sliding block 21 along the length direction of the sliding block 21, a strip block 24 is slidably arranged in the strip groove 23, the strip block 24 is fixedly connected to the side wall of the placement bin 3, the first driving component 4 is used to drive the strip block 24 to move in the strip groove 23, a receiving groove 25 is provided on the side wall of the placement bin 3, the end of the rotating shaft 5 is rotatably arranged in the receiving groove 25, a first gear 26 is coaxially fixedly sleeved on the rotating shaft 5, a chain 27 is arranged in the receiving groove 25, the chain 27 is wound around the first gear 26, and the second driving component 6 is used to drive the chain 27 to rotate.

[0028] During the battery detection process, the placement bin 3 is driven to move on the tray 12 by the first drive assembly 4, which in turn can drive the battery to move on the tray 12. In this process, the uniformity of the airflow entering the placement slot 31 can be further improved, thereby further improving the accuracy and reliability of battery detection.

[0029] As an implementation method of this application, refer to Figure 5The first driving assembly 4 includes a driving shaft 41 and a lead screw 42. The lead screw 42 is rotatably arranged in the strip groove 23 along the length direction of the strip groove 23. The strip block 24 is threadedly sleeved on the lead screw 42. The driving shaft 41 is rotatably arranged on the sliding block 21. The driving shaft 41 is transmission-connected to the lead screw 42.

[0030] Reference Figure 6 As an embodiment of the present application, the second driving assembly 6 includes a rack 61 and a second gear 62. A transmission shaft 63 is rotatably arranged on the outer wall of the placement bin 3. The transmission shaft 63 is coaxially fixedly connected to one of the rotating shafts 5. The second gear 62 is coaxially fixedly sleeved on the end of the transmission shaft 63 away from the rotating shaft 5. The rack 61 is fixedly arranged on the sliding block 21, and the second gear 62 is meshed with the rack 61.

[0031] Reference Figure 7 The sealing member 32 is configured as a baffle plate, a mounting shaft (not shown in the figure) is rotatably provided at the opening of the placement groove 31, the sealing plate is fixedly connected to the mounting shaft along the length direction of the mounting shaft, and a first elastic member (not shown in the figure) is provided on the placement bin 3, the first elastic member is used to drive the sealing plate to deflect toward the side opening of the placement groove 31, and the side wall of the sealing plate is used to abut against the side opening of the placement groove 31. As an embodiment of the present application, the first elastic member is configured as a torsion spring, the torsion spring is sleeved on the mounting shaft, one end of the torsion spring is fixedly connected to the mounting shaft, and the other end is fixedly connected to the placement bin 3.

[0032] Reference Figure 8 As an embodiment of the present application, a driving motor 7 is arranged on the box body 1, and a clamping block 71 is fixedly arranged at the end of the output shaft of the driving motor 7. A connecting sleeve 72 is arranged along the axial direction of the driving shaft 41 at one end of the driving shaft 41 away from the screw 42, and a clamping groove 73 for the clamping block 71 to be clamped is arranged at one end of the connecting sleeve 72 away from the driving shaft 41.

[0033] Reference Figure 8 , 9 A connecting groove 74 is provided on the driving shaft 41 along the axial direction of the driving shaft 41, and a connecting block 75 is slidably provided in the connecting groove 74. A connecting hole 76 is coaxially provided at one end of the connecting sleeve 72 close to the driving shaft 41, and the driving shaft 41 is slidably penetrated in the connecting hole 76. The connecting block 75 is fixedly connected to the inner wall of the connecting hole 76, and a second elastic member 77 is provided in the connecting groove 74. The second elastic member 77 is used to drive the connecting block 75 to move in a direction away from the driving shaft 41.

[0034] As an implementation method of this application, refer to Fig. 9 The second elastic member 77 is configured as a compression spring, which is disposed in the connecting groove 74 , one end of the compression spring is fixedly connected to the inner wall of the connecting groove 74 , and the other end of the compression spring is fixedly connected to the side wall of the connecting block 75 .

[0035] During actual use, as the driving motor 7 rotates, the lead screw 42 is driven to rotate, and the lead screw 42 drives the bar block 24 to move in the bar groove 23, thereby driving the placement bin 3 to move on the tray 12. In this process, as the placement bin 3 moves, the second gear 62 can be driven to rotate on the rack 61, thereby driving the first gear 26 to rotate, thereby achieving the effect of driving the deflection of the guide plate 51. As an embodiment of the present application, the distance between the rotating shafts 5 is greater than the length of the guide plate 51.

[0036] Reference Fig.10 The limiting member 22 is configured as a limiting roller, and a mounting groove (not shown in the figure) is provided at the bottom of the sliding block 21. A plurality of mounting grooves are evenly arranged along the length direction of the sliding block 21. A limiting roller is rotatably arranged in each mounting groove. The bottom of the limiting roller is in rolling contact with the top of the support rod 2. A limiting hole 81 is provided on the support rod 2. The number of the limiting holes 81 matches the mounting groove. The limiting holes 81 are used for the limiting roller to be inserted. The length of the limiting hole 81 is smaller than the diameter of the limiting roller. When placing the tray 12, the position of the sliding block 21 on the support rod 2 is limited by the limiting member 22. During the placement process, the limiting member 22 can effectively reduce the friction between the bottom of the sliding block 21 and the support rod 2, which facilitates the installation of the tray 12 and further improves the convenience of the overall device during actual use. As an implementation method of this application, refer to Figure 4 , 5 There are two placement bins 3, and two strip blocks 24 are arranged in the strip groove 23. The two strip blocks 24 are fixedly connected to the two placement bins 3 in a one-to-one correspondence. The lead screw 42 is set as a bidirectional lead screw 42. Two spiral grooves with opposite rotation directions are opened at both ends of the lead screw 42. The two strip blocks 24 are respectively threadedly sleeved on the two ends of the lead screw 42. As the lead screw 42 rotates, the two strip blocks 24 move in the strip groove 23 toward or away from each other.

[0037] As an embodiment of the present application, a sliding layer is provided at the bottom of the placement bin 3, and the sliding layer is used to be slidably connected to the top of the tray 12. The material of the sliding layer can be set to polytetrafluoroethylene, which can effectively reduce the sliding friction between the placement bin 3 and the tray 12.

[0038] The implementation principle of a battery test chamber proposed in the embodiment of the present application is: In actual use, when the battery needs to be tested, the battery is first placed in the placement slot 31 on the placement compartment 3, and the side opening of the placement slot 31 is closed by the sealing member 32. Since there is one battery corresponding to one placement slot 31 on the tray 12, the accumulation of batteries on the baffle can be effectively avoided, thereby effectively avoiding heat accumulation caused by battery accumulation, ensuring the reliability of battery detection, and improving the protection effect on the battery and the detection equipment.

[0039] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery test box, comprising a box body, a door hinged on the box body, characterized in that: A tray is arranged in the box body to slide horizontally, a support rod is fixedly arranged on the inner wall of the box body in the horizontal direction, a sliding block is fixedly arranged on the side wall of the tray, the bottom of the sliding block is slidably connected to the top of the support rod, a limiting member is arranged on the sliding block, and the limiting member is used to limit the position of the sliding block on the support rod, a placement bin is arranged on the tray, a plurality of placement grooves are evenly opened on the placement bin along the length direction of the placement bin, the placement grooves are used to accommodate batteries to be tested, one end of the placement groove is open, a sealing member is arranged on the placement groove, the sealing member is used to close the side end opening of the placement groove, a vent is opened on the top of the placement groove, the placement bin is slidably arranged on the tray along the length direction of the sliding block, and a first driving assembly is arranged on the sliding block, and the first driving assembly is used to drive the placement bin to move.

2. A battery test chamber according to claim 1, characterized in that: A rotating shaft is rotatably arranged in the vent hole, and a plurality of rotating shafts are evenly arranged in the vent hole along the horizontal direction. A guide plate is coaxially fixed on each rotating shaft, and a second driving component is arranged on the sliding block, and the second driving component is used to drive the rotating shaft to rotate.

3. A battery test chamber according to claim 2, characterized in that: A strip groove is provided on the side wall of the sliding block along the length direction of the sliding block, a strip block is slidably arranged in the strip groove, the strip block is fixedly connected to the side wall of the placement bin, the first driving component is used to drive the strip block to move in the strip groove, a receiving groove is provided on the side wall of the placement bin, the end of the rotating shaft is rotatably arranged in the receiving groove, a first gear is coaxially fixedly sleeved on the rotating shaft, a chain is arranged in the receiving groove, the chain is wound around the first gear, and the second driving component is used to drive the chain to rotate.

4. A battery test chamber according to claim 3, characterized in that: The first driving assembly includes a driving shaft and a lead screw, the lead screw is rotatably arranged in the strip groove along the length direction of the strip groove, the strip block is threadedly sleeved on the lead screw, the driving shaft is rotatably arranged on the sliding block, and the driving shaft is drivingly connected to the lead screw; The second driving assembly includes a rack and a second gear. A transmission shaft is rotatably arranged on the outer wall of the placement bin. The transmission shaft is coaxially and fixedly connected to one of the rotating shafts. The second gear is coaxially fixedly sleeved on the end of the transmission shaft away from the rotating shaft. The rack is fixedly arranged on the sliding block, and the second gear is meshed with the rack.

5. A battery test chamber according to claim 1, characterized in that: The sealing member is configured as a baffle, and a mounting shaft is rotatably arranged at the opening of the placement groove. The sealing plate is fixedly connected to the mounting shaft along the length direction of the mounting shaft. A first elastic member is arranged on the placement bin, and the first elastic member is used to drive the sealing plate to deflect toward the side end opening of the placement groove, and the side wall of the sealing plate is used to abut against the side end opening of the placement groove.

6. A battery test chamber according to claim 4, characterized in that: A driving motor is arranged on the box body, a clamping block is fixedly arranged on the end of the output shaft of the driving motor, a connecting sleeve is arranged along the axial direction of the driving shaft at one end of the driving shaft away from the screw, and a clamping groove for the clamping block to be clamped into is arranged at one end of the connecting sleeve away from the driving shaft.

7. A battery test chamber according to claim 6, characterized in that: A connecting groove is provided on the driving shaft along the axial direction of the driving shaft, a connecting block is slidably arranged in the connecting groove, a connecting hole is coaxially provided at one end of the connecting sleeve close to the driving shaft, the driving shaft is slidably passed through the connecting hole, the connecting block is fixedly connected to the inner wall of the connecting hole, a second elastic member is provided in the connecting groove, and the second elastic member is used to drive the connecting block to move in a direction away from the driving shaft.

8. The battery test chamber according to claim 1, characterized in that: The limiting member is configured as a limiting roller, and an installation groove is provided at the bottom of the sliding block. A plurality of the installation grooves are evenly arranged along the length direction of the sliding block, and a limiting roller is rotatably arranged in each installation groove. The bottom of the limiting roller is in rolling contact with the top of the support rod, and a limiting hole is provided on the support rod. The number of the limiting holes is adapted to the installation groove, and the limiting hole is used for the limiting roller to be inserted, and the length of the limiting hole is smaller than the diameter of the limiting roller.

9. A battery test chamber according to claim 4, characterized in that: There are two placement bins, and two strip blocks are arranged in the strip groove. The two strip blocks are fixedly connected to the two placement bins in a one-to-one correspondence. The lead screw is arranged as a bidirectional lead screw, and two spiral grooves with opposite rotation directions are opened at both ends of the lead screw. The two strip blocks are respectively threadedly sleeved on the two ends of the lead screw. As the lead screw rotates, the two strip blocks move in the strip groove toward or away from each other.

10. The battery test chamber according to claim 1, characterized in that: The bottom of the placement bin is provided with a sliding layer, and the sliding layer is used for sliding connection with the top of the tray.

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