Battery cell sorting device under satellite low temperature test condition

Abstract

The application relates to the technical field of cylindrical battery cell sorting, in particular to a battery cell sorting device under satellite low-temperature test conditions, which comprises a hydraulic cylinder installed at the center of an inner cylinder of a base, a spring arranged in a hydraulic hole of the hydraulic cylinder, a material collecting opening, a refrigeration box and a slip ring arranged on the inner side of the inner cylinder, the refrigeration box is communicated with a refrigeration inner wall of the inner cylinder through a vent hole, an upper cover is installed on the outer side of the base through a supporting leg, a feeding cylinder is installed in a feeding groove of the upper cover, a gear two of the feeding cylinder is engaged with a gear one, the gear one is driven by a motor, an intermediate plate is connected with the hydraulic cylinder through a hydraulic rod, a side plate surface of the intermediate plate is provided with a slide, an upper slide hole and a lower slide hole, the application utilizes hydraulic driving and motor driving, utilizes the moving amount of the intermediate plate, and makes a turnover plate synchronously rotate through an L-shaped plate, the turnover plate is inclined to discharge and feed materials, and the automatic degree of the equipment is improved.

Description

Technical Field

[0001] This invention relates to the field of cylindrical battery cell sorting technology, and in particular to a battery cell sorting device under low-temperature satellite testing conditions. Background Technology

[0002] The harshness of the space environment poses a significant challenge to the performance of battery cells. In such an environment, the temperature will fluctuate drastically. This extreme temperature difference will significantly amplify the difference in the thermal expansion coefficients of different materials inside the battery cell, which may lead to structural deformation or electrolyte solidification, negatively affecting the charging and discharging efficiency and lifespan of the battery cell.

[0003] However, as the core component of energy storage devices, battery cells play a crucial role in spacecraft such as satellites and space stations, providing indispensable power guarantees for the stable operation of various devices;

[0004] Therefore, it is necessary to ensure the stable operation of the battery cells. However, at present, most battery cell sorting technologies are developed around ground application scenarios. Existing sorting equipment usually operates at room temperature and lacks the function of simulating the extreme temperature environment of space, resulting in significant performance evaluation differences between the sorting results and actual application scenarios.

[0005] Traditional sorting equipment relies solely on basic parameters such as voltage and internal resistance during the screening process, failing to fully consider the comprehensive impact of temperature changes on cell performance, resulting in insufficient sorting accuracy. Furthermore, some equipment requires manual intervention during operation, which not only reduces sorting efficiency but also fails to meet the actual production demands of large-scale satellite cell screening. Summary of the Invention

[0006] Therefore, this invention was made in view of the above problems. The purpose of this invention is to solve the above problems by using a hydraulic cylinder to drive the intermediate plate to move, performing environmental simulation testing of the battery cells at the lowest point, driving the flip plate after testing to discharge the cells when it moves to the middle point, and driving the flip plate after discharge to load the cells at the highest point. This invention achieves the above objective through the following technical solution:

[0007] A battery cell sorting device under low-temperature satellite testing conditions includes: a hydraulic cylinder installed at the center of the inner cylinder of the base, a spring installed in the hydraulic hole of the hydraulic cylinder, a receiving port, a cooling box, and a slip ring provided on the inner side of the inner cylinder, the cooling box communicating with the cooling inner wall of the inner cylinder through a vent hole, a top cover installed on the outside of the base by support feet, a feeding cylinder installed in the feeding groove of the top cover, a gear two of the feeding cylinder meshing with a gear one, the gear one being driven by a motor, an intermediate plate connected to the hydraulic cylinder by a hydraulic rod, a slide rail, an upper sliding hole and a lower sliding hole provided on the side plate surface of the intermediate plate, a slide rod slidably installed in the slide rail, a flipping plate slidably connected to the slide rail by the slide rod, a rotating end three provided at both ends of the flipping plate, the flipping plate being hinged to the rotating end two of the intermediate plate by a connecting rod, a charging and discharging head provided in the flipping plate, and battery cells clamped between the charging and discharging heads.

[0008] Preferably, the receiving port is provided with a material distribution shaft plate, and a material collection trough and a material receiving trough are respectively provided on both sides below the material distribution shaft plate.

[0009] Preferably, the slip ring is connected to the upper and lower sliding holes of the intermediate plate via an L-shaped rod, and the rotating end of the L-shaped rod is fixed to the middle section of the slip ring.

[0010] Preferably, the feeding cylinder's inner groove is fed with battery cells through the meshing and rotation of gear two.

[0011] Preferably, the isolation plate of the flip plate is fitted with the inner wall of the cooling system to form a sealed cavity.

[0012] Preferably, the two ends of the connecting rod are respectively hinged to the rotating end three of the flip plate and the rotating end two of the intermediate plate through rotating end four and rotating end five.

[0013] Preferably, when the hydraulic rod of the intermediate plate moves upward, it drives the tilting plate to detach from the inner wall of the refrigeration unit and rotate to the receiving port via the slide rod and connecting rod.

[0014] Preferably, the vents of the refrigeration box are evenly distributed within the sealed cavity of the flip plate.

[0015] Preferably, the upper surface of the cover is provided with multiple sets of through square sliding holes and feeding grooves. Each set of feeding grooves has a bottom groove at the bottom and an annular groove and a side groove inside. The gear of the feeding cylinder is limited to the feeding groove of the cover through the annular groove.

[0016] Preferably, the spring of the hydraulic cylinder releases its elastic force when the intermediate plate moves upward, driving the slip ring to contact the retaining ring. The inner circumference of the intermediate plate has multiple sets of internal connecting rods, and each set of side plate surfaces is provided with a plate surface groove.

[0017] Beneficial effects of this invention:

[0018] 1. This invention utilizes a hydraulic cylinder to drive the intermediate plate to move. At the lowest point, environmental simulation testing of the battery cell is performed. When the plate moves to the middle point, it drives the flip plate after testing to discharge the material. At the highest point, it drives the flip plate after discharge to load the material, making it safer to conduct space environment simulation testing on the battery cell and improving overall safety.

[0019] 2. This invention utilizes hydraulic and motor drives, and uses the movement of the intermediate plate to make the flipping plate rotate synchronously through the L-shaped plate. When the intermediate plate moves to the middle position, the flipping plate tilts to discharge materials, and when the intermediate plate moves to the highest position, the flipping plate is placed horizontally to load materials, thereby improving the automation level of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the first state of the device provided by the present invention.

[0021] Figure 2 This is a schematic diagram of the second state of the device provided by the present invention.

[0022] Figure 3 This is a schematic diagram of the third state of the device provided by the present invention.

[0023] Figure 4 This is a schematic diagram of the fourth state of the device provided by the present invention.

[0024] Figure 5 This is an exploded view diagram of the equipment assembly provided by the present invention.

[0025] Figure 6 This is a schematic diagram of the base provided by the present invention.

[0026] Figure 7 This is a first-view schematic diagram of the top cover provided by the present invention.

[0027] Figure 8 This is a schematic diagram of the upper cover from a second perspective provided by the present invention.

[0028] Figure 9 This is an enlarged view of point A.

[0029] Figure 10 This is a schematic diagram of the feed cylinder provided by the present invention.

[0030] Figure 11 This is a schematic diagram of the intermediate plate provided by the present invention.

[0031] Figure 12 This is a schematic diagram of the flip plate provided by the present invention.

[0032] Figure 13 This is a schematic diagram of the connecting rod provided by the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10. Base; 11. Inner cylinder; 111. Hydraulic cylinder; 112. Hydraulic hole; 113. Retaining ring; 114. Spring; 115. Refrigeration inner wall; 12. Material receiving port; 121. Material distribution shaft plate; 122. Material collection trough; 123. Material receiving trough; 13. Refrigeration box; 131. Vent hole; 14. Slip ring; 15. L-shaped rod; 151. Rotating end one; 20. Top cover; 201. Support leg; 202. Square sliding hole; 21. Feed trough; 211. Bottom groove; 212. Ring groove; 213. Side groove; 22. 1. Gear 1; 221. Motor; 23. Feed cylinder; 231. Material trough; 232. Gear 2; 30. Intermediate plate; 301. Side plate surface; 302. Inner connecting rod; 303. Hydraulic rod; 31. Plate surface groove; 311. Slide rail; 312. Upper sliding hole; 313. Lower sliding hole; 32. Rotating end 2; 40. Tilting plate; 401. Rotating end 3; 41. Slide rod; 42. Isolation plate; 43. Charging / discharging head; 44. Battery cell; 45. Connecting rod; 451. Rotating end 4; 452. Rotating end 5. Detailed Implementation

[0035] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will make it easy for those skilled in the art to implement these embodiments; however, the present invention may also be implemented in various different forms, and therefore the present invention is not limited to the embodiments described below; in addition, for the sake of clearer description of the present invention, components not connected to the present invention will be omitted from the drawings.

[0036] like Figure 1 As shown, a cell sorting device under low-temperature satellite testing conditions includes: a base 10, an upper cover 20, an intermediate plate 30, and a flip plate 40;

[0037] like Figure 6 As shown, the base 10 has an inner cylinder 11, a hydraulic cylinder 111 at the center of the inner cylinder 11, a hydraulic hole 112 inside the hydraulic cylinder 111, a retaining ring 113 at the opening of the hydraulic cylinder 111, a spring 114 installed in the hydraulic cylinder 111, the upper end of the spring 114 can be installed at the lower end of the slip ring 14, the inner cylinder 11 has multiple sets of receiving ports 12 on its peripheral wall, each set of receiving ports 12 has a material distribution shaft plate 121, the material distribution shaft plate 121 is connected to a drive motor, the material distribution shaft plate 121 has a material collection trough 122 and a material receiving trough 123 below the material distribution shaft plate 121, the material collection trough 122 is used to collect qualified battery cells 44, the material receiving trough 123 is used to collect qualified battery cells 44, the inner cylinder 11 has multiple sets of refrigeration boxes 13 on its peripheral wall, the refrigeration boxes 13 deliver cold air to the flipping plate 40 through the vent hole 131;

[0038] like Figure 4 , Figure 5As shown, the outer peripheral wall of the slip ring 14 has multiple sets of L-shaped rods 15, each set of L-shaped rods 15 has a rotating end 151. The slip ring 14 is installed on the peripheral wall of the hydraulic cylinder 111 under the retaining ring 113. The slip ring 14 is installed on the upper end of the spring 114. The L-shaped rods 15 are installed in the upper sliding hole 312 and the lower sliding hole 313. The rotating end 151 is installed in the middle section of the slide rod 41.

[0039] like Figure 7 , Figure 8 , Figure 9 As shown, the upper cover 20 has multiple sets of support legs 201. The upper end of the upper cover 20 has multiple sets of through square sliding holes 202 and feeding grooves 21. Each set of feeding grooves 21 has a bottom groove 211 at the bottom. Each set of feeding grooves 21 has an annular groove 212 and a side groove 213. The side groove 213 has a gear 22, and a motor 221 is installed in the gear 22.

[0040] like Figure 10 As shown, the feed cylinder 23 has a material inlet groove 231 inside and a gear 232 at the end of the feed cylinder 23;

[0041] like Figure 4 , Figure 5 As shown, the upper cover 20 is mounted on the outside of the base 10 by multiple sets of support legs 201. The position of the feed trough 21 corresponds to the receiving port 12. The feed cylinder 23 is installed in the feed trough 21. The gear 232 of the feed cylinder 23 is installed in the annular groove 212. The gears 232 of the multiple sets of feed cylinders 23 mesh with each other. The gear 232 of the feed cylinder 23 at the end meshes with the gear 22.

[0042] like Figure 11 As shown, the outer periphery of the intermediate plate 30 has multiple sets of side plate surfaces 301, and the inner periphery of the intermediate plate 30 has multiple sets of internal connecting rods 302. The multiple sets of internal connecting rods 302 are installed together at the hydraulic rod 303. Each set of side plate surfaces 301 has a plate surface groove 31. Both sides of each set of plate surface groove 31 have slide rails 311. The upper part of each set of side plate surfaces 301 has an upper sliding hole 312. The lower part of each set of side plate surfaces 301 has a lower sliding hole 313. The lower part of each set of side plate surfaces 301 has two sets of rotating ends 32.

[0043] like Figure 4 , Figure 5 As shown, the intermediate plate 30 is installed in the hydraulic hole 112 by a hydraulic rod 303, and the side plate surface 301 corresponds to the receiving port 12.

[0044] like Figure 12 As shown, the flip plate 40 has two sets of rotating ends 401 on both sides, the flip plate 40 has a sliding rod 41 at the end, the flip plate 40 has an isolation plate 42 inside, and the flip plate 40 has multiple sets of elastic charging and discharging heads 43 on both sides inside, with battery cells 44 installed between the corresponding charging and discharging heads 43.

[0045] like Figure 13 As shown, one end of the connecting rod 45 has a rotating end 451, and the other end has a rotating end 452.

[0046] like Figure 4 , Figure 5 As shown, the flip plate 40 is installed in two sets of slide tracks 311 in the plate groove 31 through both ends of the slide rod 41. The middle section of the slide rod 41 is equipped with a rotating end 151. The connecting rod 45 is installed at the rotating end 301 through the rotating end 451. The connecting rod 45 is installed at the rotating end 22 through the rotating end 452.

[0047] The basic principle of this invention:

[0048] like Figure 1 As shown, when the battery cell 44 is sorted, the flip plate 40 is in a retracted state and is close to the inner cylinder 11. The battery cell 44 is installed in the charging and discharging head 43 inside the flip plate 40. The refrigeration box 13 injects low-temperature gas into the flip plate 40, the isolation plate 42 forms a seal, and the charging and discharging head 43 tests the battery cell 44 under low-temperature conditions.

[0049] After the test is completed, spring 114 is in a compressed state. Hydraulic cylinder 111 pushes hydraulic rod 303 upward, which in turn moves intermediate plate 30 upward. Since flip plate 40 is in close contact with the inner wall 115 of the refrigeration unit, intermediate plate 30 will drive flip plate 40 to move upward. This, in turn, drives L-shaped rod 15 and slip ring 14 to move via slide rod 41. The movement of slip ring 14 will release spring 114. At this time, the equipment is in the following state: Figure 2 As shown;

[0050] Then, hydraulic cylinder 111 continues to push hydraulic rod 303 upward, thereby causing intermediate plate 30 to move upward. Since tilting plate 40 is no longer pressed against inner cylinder 11, on the one hand, intermediate plate 30 will drive tilting plate 40 to move upward, and on the other hand, since spring 114 is fully released, slip ring 14 contacts retaining ring 113, making L-shaped rod 15 unable to move. On the other hand, as intermediate plate 30 moves upward, through the cooperation of slip rod 41 and rotating end 151, and the action of connecting rod 45, tilting plate 40 rotates to receiving port 12, discharge head 43 retracts, and discharges material. At this time, the equipment is in the following state: Figure 3 As shown;

[0051] Then, hydraulic cylinder 111 continues to push hydraulic rod 303 upward, causing intermediate plate 30 to continue moving upward, and tilting plate 40 continues to rotate until tilting plate 40 moves to the bottom groove 211 of feed trough 21. Discharge head 43 retracts, and then motor 221 drives gear 22 to rotate 180 degrees, thereby causing multiple sets of feed cylinders 23 to rotate 180 degrees, and thus causing the battery cells 44 in the material grooves 231 of multiple sets of feed cylinders 23 to fall between the discharge heads 43 on tilting plate 40. At this time, the equipment is in the following state: Figure 4 As shown;

[0052] Then, hydraulic cylinder 111 retracts hydraulic rod 303 and moves downward to return to its original position. Figure 1 As shown in the diagram, perform the test and repeat the above steps to complete the 44-cell sorting process.

Claims

1. A battery cell sorting apparatus under satellite cryogenic test conditions, characterized by, The base (10) is provided with a hydraulic cylinder (111) at the center of the inner cylinder (11), a spring (114) is arranged in the hydraulic hole (112) of the hydraulic cylinder (111), the inner side of the inner cylinder (11) is provided with a material collecting port (12), a refrigeration box (13), and a sliding ring (14), the refrigeration box (13) is communicated with the refrigeration inner wall (115) of the inner cylinder (11) through a ventilation hole (131), the upper cover (20) is arranged on the outer side of the base (10) through a supporting leg (201), a feeding cylinder (23) is arranged in the feeding groove (21) of the upper cover (20), the gear two (232) of the feeding cylinder (23) is engaged with the gear one (22), the gear one (22) is driven by a motor (221), the middle plate (30) is connected with the hydraulic cylinder (111) through a hydraulic rod (303), the side plate surface (301) of the middle plate (30) is provided with a sliding way (311), an upper sliding hole (312) and a lower sliding hole (313), a sliding rod (41) is slidingly arranged in the sliding way (311), a turnover plate (40) is slidingly connected in the sliding way (311) through the sliding rod (41), both ends of the turnover plate (40) are provided with rotating ends three (401), the turnover plate (40) is hinged with the rotating end two (32) of the middle plate (30) through a connecting rod (45), a punching and discharging head (43) is arranged in the turnover plate (40), and the battery cell (44) is clamped between the punching and discharging head (43). The material collecting port (12) is provided with a material distributing shaft plate (121), and both sides below the material distributing shaft plate (121) are respectively provided with a material collecting groove (122) and a material collecting groove (123).

2. The battery cell sorting device under low temperature test condition of a satellite according to claim 1, characterized in that: The sliding ring (14) is connected with the upper sliding hole (312) and the lower sliding hole (313) of the middle plate (30) through an L-shaped rod (15), and the rotating end one (151) of the L-shaped rod (15) is fixed to the middle section of the sliding rod (41).

3. The battery cell sorting device under low temperature test condition of a satellite according to claim 1, characterized in that: The material inner groove (231) of the feeding cylinder (23) is rotated through the engagement of the gear two (232) to realize the feeding of the battery cell (44).

4. The battery cell sorting device under low temperature test condition of claim 1, wherein: The isolation plate (42) of the turnover plate (40) is attached to the refrigeration inner wall (115) to form a sealed cavity.

5. The battery cell sorting device under low temperature test condition of a satellite according to claim 1, characterized in that: Both ends of the connecting rod (45) are respectively hinged with the rotating end three (401) of the turnover plate (40) and the rotating end two (32) of the middle plate (30) through rotating end four (451) and rotating end five (452).

6. The battery cell sorting device under low temperature test condition of a satellite according to claim 1, wherein: When the hydraulic rod (303) of the middle plate (30) moves upward, the turnover plate (40) is driven to separate from the refrigeration inner wall (115) and rotate to the material collecting port (12) through the sliding rod (41) and the connecting rod (45).

7. The battery cell sorting device under low temperature test condition of a satellite according to claim 1, characterized in that: The ventilation holes (131) of the refrigeration box (13) are uniformly distributed in the sealed cavity of the turnover plate (40).

8. The battery cell sorting device under low temperature test condition of a satellite according to claim 1, wherein: The upper end surface of the upper cover (20) is provided with a plurality of groups of penetrating square sliding holes (202) and feeding grooves (21), the bottom of each group of feeding grooves (21) is provided with a bottom groove (211), the inside of each group of feeding grooves (21) is provided with a ring groove (212) and a side groove (213), and the gear two (232) of the feeding cylinder (23) is limited by the ring groove (212) and the feeding groove (21) of the upper cover (20).

9. The battery cell sorting device under low temperature test condition of a satellite of claim 1, wherein: ​ 10. The battery cell sorting device under low temperature test condition of a satellite according to claim 1, characterized in that: The spring (114) of the hydraulic cylinder (111) releases elastic force when the intermediate plate (30) moves upward, drives the sliding ring (14) to contact the stop ring (113), and the inner circumferential side of the intermediate plate (30) has multiple groups of inner connecting rods (302), and each group of side plates (301) is provided with a plate groove (31).

Images