A vortex tube heating and cooling drying oven for lithium batteries

Abstract

The present invention belongs to the field of lithium battery processing, and relates to a vortex tube heating and cooling drying box for lithium batteries. It includes two battery racks for carrying lithium batteries, a chassis, and a barrel box. The upper end of the barrel box has two feeding ports, which are fixed coaxially with the chassis. The tray is dynamically sealed with the lower end of the barrel box, the central axis is coaxially fixed with the tray, and insulation plates are provided on both sides of the central axis and connected to the tray. The insulation plate divides the barrel box into a heating chamber and a cooling chamber. The output ends on both sides of the vortex tube are connected to the two chambers respectively. There is a lifting mechanism in each of the heating chamber and the cooling chamber, including a lifting frame, a top pin and a cone sleeve. The limiting mechanism is connected to the tray, including a cylinder and four unlocking mechanisms for positioning the cone sleeve. The device can accurately control the heating and cooling temperatures, meet the temperature requirements of different processing stages of lithium batteries, and improve battery performance.

Description

Technical Field

[0001] The invention relates to the field of lithium battery processing, and in particular to a vortex tube heating and cooling drying box for lithium batteries. Background Art

[0002] With the widespread application of lithium batteries in electronic devices, electric vehicles and other fields, the performance and quality requirements of lithium batteries are getting higher and higher. During the production process of lithium batteries, heating and cooling drying are required to remove moisture, optimize the internal structure, and improve the stability and service life of the battery.

[0003] Traditional lithium battery heating and cooling equipment often has some problems. For example, some equipment uses a single heating or cooling method, which cannot meet the complex temperature requirements of lithium batteries at different stages. During the heating process, if the battery cannot be heated evenly, the performance of the internal materials of the battery will be inconsistent, affecting the overall performance of the battery. During the cooling process, if the temperature changes too drastically, the internal materials of the battery are prone to microcracks due to thermal stress, reducing the safety and reliability of the battery. The Chinese patent with announcement number CN207303245U provides a dual-input and output lithium battery automatic drying and cooling system, which uses a six-axis manipulator mobile mechanism to move the lithium battery from a special fixture to the conveying tray of the cooling furnace and enter the cooling air cavity, so that the lithium battery is quickly cooled; however, in this process, the heating conditions of different lithium batteries in the heating zone may be different. After directly entering the cooling furnace, due to the fast cooling speed, the temperature change rate and final cooling state between the batteries will also be different, which will cause the consistency of the battery pack to deteriorate. In subsequent use, battery packs with poor consistency will have problems of unbalanced charging and discharging, affecting the performance and life of the entire battery pack.

[0004] In addition, the traditional equipment is not reasonable in structural design, complicated to operate, and has low production efficiency. For example, the feeding and taking process of the equipment is cumbersome and cannot realize automated continuous production. Moreover, the energy consumption of the equipment is high, which increases the production cost. With the rapid development of the lithium battery industry, there is an urgent need for a drying box equipment that can achieve efficient and uniform heating and cooling, reasonable structure, simple operation, energy saving and environmental protection, so as to meet the growing production needs of lithium battery manufacturers. Summary of the invention

[0005] Based on this, it is necessary to provide a vortex tube heating and cooling drying box for lithium batteries in response to the existing technical problems.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] A vortex tube heating and cooling drying box for lithium batteries, comprising two battery racks for carrying a plurality of lithium batteries, and further comprising:

[0008] Chassis;

[0009] The barrel box is coaxially fixed above the chassis, and two feeding ports are formed on the upper end of the barrel box;

[0010] The tray is dynamically and sealingly connected to the lower end of the barrel box;

[0011] The central axis is fixedly connected with the tray coaxially;

[0012] Two heat-insulating plates are respectively arranged on both sides of the central axis and are fixedly connected to the upper end of the tray;

[0013] Two insulation plates are respectively fixed to the two sides of the central axis and divide the interior of the barrel box into a heating chamber and a cooling chamber. The side of the insulation plate away from the central axis slides against the inner wall of the barrel box.

[0014] The vortex tube is arranged on the side of the barrel box and its two output ends are respectively connected with the heating chamber and the refrigeration chamber;

[0015] Two lifting mechanisms are respectively arranged inside the heating chamber and the cooling chamber, and the lifting mechanisms include a lifting frame, a top pin and a cone sleeve. The lifting frame is arranged above the tray, the battery frame is detachably connected to the lifting frame, the top pin is fixedly connected to the lower end of the lifting frame, and the cone sleeve is fixedly connected to the top pin coaxially;

[0016] The limiting mechanism is connected to the tray and includes a cylinder and four unlocking mechanisms. The cylinder is fixedly arranged below the chassis. An unlocking mechanism is respectively arranged on both sides of each lifting frame, and the unlocking mechanism positions the cone sleeve.

[0017] Furthermore, the limiting mechanism also includes an assembly motor, an assembly gear and an assembly gear ring. The assembly motor is arranged below the chassis, the assembly gear is coaxially fixedly connected to the output end of the assembly motor, and the assembly gear ring is coaxially fixedly connected to the tray and meshes with the assembly gear.

[0018] Furthermore, the lifting mechanism also includes a power motor, a power gear and a driving gear. The power motor is fixedly arranged under the tray, the power gear is coaxially connected to the output end of the power motor, the driving gear is meshed with the power gear and is coaxially arranged with the push pin, the driving gear is the movable end of the lifting mechanism, and when the driving gear rotates, it drives the push pin to rotate.

[0019] Furthermore, the lifting mechanism also includes a bottom sleeve and a magnetic disk. The bottom sleeve is rotatably connected to the insulation disk, the top pin is key-connected to the bottom sleeve, the magnetic disk is coaxially fixedly connected to the movable end of the lifting mechanism, and the magnetic disk is connected to the bottom sleeve through magnetic transmission.

[0020] Furthermore, the lifting mechanism also includes two lifting springs, which are symmetrically arranged on both sides of the top pin, and the upper ends of the lifting springs are fixedly connected to the lifting frame, and the lower ends are fixedly connected to the insulation plate.

[0021] Furthermore, the limiting mechanism also includes a disc seat, two chucks and two pull rods. The disc seat is coaxially fixedly connected to the output end of the cylinder. The two pull rods are respectively connected to the tray dynamic seal. The two pull rods are the input end of the limiting mechanism. The two chucks are respectively fixedly connected to the lower ends of the two pull rods, and the chucks and the inner side of the disc seat rotate against each other.

[0022] Furthermore, the limiting mechanism also includes two downward pressure racks, two downward pressure gears, two first bevel teeth, two second bevel teeth, two main gears and two main gear rings. The two main gear rings are respectively connected to the two insulation plates coaxially for rotation. The two main gears are respectively rotatably arranged on both sides of the central axis and mesh with the corresponding main gear rings. The two second bevel teeth are respectively fixedly connected to the two main gears coaxially. The two first bevel teeth are respectively meshed with the two second bevel teeth. The two downward pressure gears are respectively fixedly connected to the two first bevel teeth coaxially. The two downward pressure racks are respectively slidably arranged on the sides of the two downward pressure gears and meshed with the downward pressure gears. The two downward pressure racks are respectively fixedly connected to the input end of the limiting mechanism, and the two main gear rings are the input ends of the two unlocking mechanisms.

[0023] Furthermore, the unlocking mechanism includes an unlocking gear, a tooth seat, a transfer gear, an unlocking rack, a positioning seat and a sliding seat. The unlocking gear is transmission-connected to the input end of the unlocking mechanism, the tooth seat is fixedly connected to the upper end of the tray, the transfer gear is rotationally connected to the upper end of the tooth seat, the unlocking rack is slidingly connected to the upper end of the tooth seat and meshes with the transfer gear, the positioning seat is fixedly connected to the upper end of the tooth seat, the sliding seat is slidingly connected to the positioning seat and fixedly connected to the unlocking rack, and the transfer gear is coaxially fixedly connected to the unlocking gear.

[0024] Furthermore, the limiting mechanism also includes a sliding frame, two sliding pins and two sliding springs. The sliding frame is fixedly connected to the upper end of the sliding seat, the two sliding pins are respectively slidably connected to the sliding frame, the ends of the two sliding pins close to the top pins are respectively fixedly connected to the corresponding limiting oblique rods, the two sliding springs are respectively sleeved on the outside of the two sliding pins, one end of the sliding spring is fixedly connected to the sliding frame, and the other end is fixedly connected to the limiting oblique rod.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] First, the device inputs hot air flow and cold air flow into the heating chamber and the cooling chamber respectively through the vortex tube, which can accurately control the heating and cooling temperatures, meet the temperature requirements of different processing stages of lithium batteries, and improve the performance of lithium batteries;

[0027] Second: When the device transfers the lithium battery from the heating chamber to the cooling chamber, the hot air enclosed by the insulation board buffers the temperature change of the lithium battery from heating to cooling, preventing the internal materials of the lithium battery from microcracks due to excessive thermal stress, and protecting the internal structural stability of the lithium battery;

[0028] Thirdly, the lifting mechanism in the device drives the battery rack to rotate, so that the lithium batteries can be evenly heated or cooled in the heating chamber and the cooling chamber, avoiding the performance differences of the same batch of lithium batteries caused by uneven temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0030] Figure 2 is a half-section view of the three-dimensional structure of an embodiment;

[0031] Figure 3 It is a partial structural decomposition schematic diagram of an embodiment;

[0032] Figure 4 Schematic diagram of the three-dimensional structure of the battery rack and the lifting frame in the embodiment;

[0033] Figure 5 is a truncated diagram of the lifting mechanism in the embodiment;

[0034] Figure 6 is a partial structural half-section diagram of the limiting mechanism in the embodiment;

[0035] Figure 7 is a partial structural half-section diagram of the unlocking mechanism in the embodiment;

[0036] Figure 8 yes Figure 7 A magnified view of the structure in the middle.

[0037] The numbers in the figure are:

[0038] 1. Chassis; 2. Vortex tube; 3. Cylinder box; 4. Middle shaft; 5. Feeding port; 6. Tray; 7. Battery rack; 8. Lithium battery; 9. Insulation board; 10. Insulation plate; 11. Lifting mechanism; 12. Lifting frame; 13. Ejector pin; 14. Cone sleeve; 15. Bottom sleeve; 16. Magnetic disk; 17. Driving gear; 18. Power gear; 19. Power motor; 20. Lifting spring; 21. Limiting mechanism; 22. Cylinder; 23. Disc seat; 24. Chuck; 25 , pull rod; 26, pressing rack; 27, pressing gear; 28, first bevel gear; 29, second bevel gear; 30, main gear; 31, main gear ring; 32, unlocking mechanism; 33, unlocking gear; 34, gear seat; 35, transfer gear; 36, unlocking rack; 37, positioning seat; 38, sliding seat; 39, sliding frame; 40, limiting inclined rod; 41, sliding pin shaft; 42, sliding spring; 43, assembly motor; 44, assembly gear; 45, assembly gear ring. DETAILED DESCRIPTION

[0039] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] refer to Figures 1 to 8 , a vortex tube heating and cooling drying oven for lithium batteries, comprising two battery racks 7 for carrying a plurality of lithium batteries 8, and also comprising:

[0041] Chassis 1;

[0042] The barrel box 3 is coaxially fixedly arranged above the chassis 1, and two feeding ports 5 are formed on the upper end of the barrel box 3;

[0043] The tray 6 is dynamically and sealingly connected to the lower end of the barrel box 3;

[0044] The central axis 4 is coaxially fixedly connected to the tray 6;

[0045] Two heat-insulating plates 10 are respectively arranged on both sides of the central axis 4 and fixedly connected to the upper end of the tray 6;

[0046] Two insulation plates 9 are respectively fixed to the two sides of the central axis 4 and divide the interior of the barrel box 3 into a heating chamber and a cooling chamber. The side of the insulation plate 9 away from the central axis 4 slides against the inner wall of the barrel box 3.

[0047] The vortex tube 2 is arranged beside the barrel box 3 and its two output ends are respectively connected with the heating chamber and the refrigeration chamber;

[0048] Two lifting mechanisms 11 are respectively arranged inside the heating chamber and the cooling chamber. The lifting mechanism 11 includes a lifting frame 12, a top pin 13 and a cone sleeve 14. The lifting frame 12 is arranged above the tray 6 (such as Figure 5 As shown), the battery rack 7 is detachably connected to the lifting frame 12, the top pin 13 is fixedly connected to the lower end of the lifting frame 12, and the cone sleeve 14 is coaxially fixedly connected to the top pin 13;

[0049] The limiting mechanism 21 is connected to the tray 6 and includes a cylinder 22 and four unlocking mechanisms 32. The cylinder 22 (such as Figure 3 As shown in the figure, it is fixedly arranged under the chassis 1, and an unlocking mechanism 32 is respectively arranged on both sides of each lifting frame 12, and the unlocking mechanism 32 positions the cone sleeve 14.

[0050] Before the operation of the device, the operator first places the battery rack 7 loaded with a number of lithium batteries 8 into the barrel box 3 through the feeding port 5 at the upper end of the heating chamber. At this time, the battery rack 7 will push the lifting frame 12 downward to move until the output end of the corresponding unlocking mechanism 32 limits the ejector pin 13 through the cone sleeve 14, and then the operator closes the feeding port 5 and starts the device.

[0051] When the device is running, the two output ends of the vortex tube 2 input corresponding hot air flow and cold air flow to the heating chamber and the refrigeration chamber respectively, and then a number of lithium batteries 8 will be heated in the heating chamber, and under the action of the lifting mechanism 11, the lifting frame 12 will rotate (the specific rotation process will be described in detail later) so that the lithium batteries 8 are evenly heated in the heating chamber. After the heating is completed, the limiting mechanism 21 will drive the tray 6 to rotate 180° (the specific rotation process will be described in detail later), and the lifting frame 12 originally located in the heating chamber will move to the refrigeration chamber, and then the lithium batteries 8 on the lifting frame 12 will be cooled in the refrigeration chamber. When the tray 6 rotates, the hot air entrained by the two insulation plates 9 will move to the refrigeration chamber, and this part of the hot air will buffer the temperature change of the lithium battery 8 from the heating chamber to the refrigeration chamber, avoiding the lithium battery 8 from having problems due to a sharp drop in temperature (such as micro cracks in the internal material of the battery due to excessive thermal stress), so that the temperature transition of the lithium battery 8 is relatively smooth, which has a certain protective effect on the stability of the internal structure of the lithium battery 8.

[0052] In order to drive the tray 6 to rotate, and thus realize the movement of the lifting frame 12 originally located in the heating chamber to the refrigeration chamber, the following features are also specifically provided:

[0053] The limiting mechanism 21 also includes an assembly motor 43, an assembly gear 44 and an assembly gear ring 45. The assembly motor 43 is arranged below the chassis 1. The assembly gear 44 is coaxially fixedly connected to the output end of the assembly motor 43. The assembly gear ring 45 is coaxially fixedly connected to the tray 6 and meshes with the assembly gear 44. When it is necessary to drive the tray 6 to rotate so that the lifting frame 12 located in the heating chamber moves to the refrigeration chamber, the assembly motor 43 is started, and the assembly motor 43 outputs power to drive the assembly gear 44 to rotate. Since the assembly gear 44 is meshed with the assembly gear ring 45, and the assembly gear ring 45 is coaxially fixedly connected to the tray 6, the rotation of the assembly gear 44 will drive the assembly gear ring 45 to rotate, and then drive the tray 6 to rotate, so as to realize the position conversion of the lifting frame 12 between the heating chamber and the refrigeration chamber.

[0054] In order to drive the ejector pin 13 to rotate, and then realize that the lifting frame 12 drives the battery rack 7 to rotate, so that the plurality of lithium batteries 8 can be evenly heated or cooled during the rotation process, the following features are also specifically provided:

[0055] The lifting mechanism 11 also includes a power motor 19, a power gear 18 and a driving gear 17. The power motor 19 is fixedly arranged below the tray 6. The power gear 18 is coaxially connected to the output end of the power motor 19. The driving gear 17 is meshed with the power gear 18 and is coaxially arranged with the top pin 13. The driving gear 17 is the movable end of the lifting mechanism 11. When the driving gear 17 rotates, it drives the top pin 13 to rotate. When the power motor 19 is started, the output end of the power motor 19 drives the power gear 18 to rotate. The power gear 18 is meshed with the driving gear 17. The driving gear 17 is coaxially arranged with the top pin 13. That is, the rotation of the power gear 18 will drive the driving gear 17 to rotate, thereby driving the top pin 13 to rotate, so that the lifting frame 12 can drive the battery frame 7 to rotate, so that a plurality of lithium batteries 8 can be evenly heated or cooled during the rotation process.

[0056] In order to avoid the transmission between the ejector pin 13 and the drive gear 17 being interrupted after the tray 6 rotates, the following features are also specifically provided:

[0057] The lifting mechanism 11 further includes a bottom sleeve 15 and a magnetic disk 16, and the bottom sleeve 15 is rotatably connected to the heat insulation disk 10 (combined with Figure 5 and Figure 6 ), the top pin 13 is keyed to the bottom sleeve 15, and the magnetic disk 16 is coaxially fixed to the driving gear 17 (such as Figure 3 As shown in the figure, the magnetic disk 16 is connected to the bottom sleeve 15 through magnetic transmission. When the driving gear 17 rotates, the magnetic disk 16 rotates accordingly, and the magnetic disk 16 drives the bottom sleeve 15 to rotate through magnetic force. Since the top pin 13 is key-connected with the bottom sleeve 15, the rotation of the bottom sleeve 15 can drive the top pin 13 to rotate, thereby ensuring the continuity of transmission.

[0058] In order to supplement the specific structure of the lifting mechanism 11, the following features are also specifically provided:

[0059] The lifting mechanism 11 also includes two lifting springs 20, which are symmetrically arranged on both sides of the top pin 13. The upper ends of the lifting springs 20 are fixedly connected to the lifting frame 12, and the lower ends are fixedly connected to the heat insulation plate 10. When the battery rack 7 is placed on the lifting frame 12 and the lifting frame 12 moves downward, the lifting springs 20 are compressed to store elastic potential energy; when the lifting frame 12 needs to move upward to reset, the lifting springs 20 release the elastic potential energy and push the lifting frame 12 to move upward, thereby playing the role of assisting lifting and resetting.

[0060] In order to supplement the specific structure of the limiting mechanism 21, the following features are also specifically provided:

[0061] The limiting mechanism 21 also includes a disc seat 23, two chucks 24 and two pull rods 25. The disc seat 23 is coaxially fixedly connected to the output end of the cylinder 22 (such as Figure 3As shown in the figure, two tie rods 25 are respectively connected to the tray 6 in a dynamic and sealed manner. The two tie rods 25 are the input ends of the limit mechanism 21. The two chucks 24 are respectively connected to the lower ends of the two tie rods 25. The chucks 24 and the inner side of the tray seat 23 rotate against each other. When the operator places the battery rack 7 on the lifting frame 12 and moves the lifting frame 12 downward, the lifting spring 20 is compressed to store elastic potential energy; when the lifting frame 12 needs to move upward to reset, the lifting spring 20 releases the elastic potential energy and pushes the lifting frame 12 to move upward, playing the role of assisting lifting and resetting.

[0062] In order to realize the power transmission of the unlocking mechanism 32 and ensure that after the processing is completed, the two lifting frames 12 can move upward and reset under the action of the lifting springs 20, the following features are also specifically provided:

[0063] The limiting mechanism 21 also includes two pressing racks 26, two pressing gears 27, two first bevel teeth 28, two second bevel teeth 29, two main gears 30 and two main gear rings 31. The two main gear rings 31 are respectively connected to the two heat insulation plates 10 coaxially for rotation (such as Figure 6 As shown in the figure, the two main gears 30 are rotatably arranged on both sides of the middle shaft 4 and mesh with the corresponding main gear rings 31, the two second bevel teeth 29 are coaxially fixedly connected to the two main gears 30, the two first bevel teeth 28 are respectively meshed with the two second bevel teeth 29, the two pressing gears 27 are coaxially fixedly connected to the two first bevel teeth 28, the two pressing racks 26 are respectively slidably arranged beside the two pressing gears 27 and meshed with the pressing gears 27, the two pressing racks 26 are respectively fixedly connected to the two pull rods 25, and the two main gear rings 31 are the input ends of the two unlocking mechanisms 32. When it is necessary to realize power transmission of the unlocking mechanism 32 to ensure that after the processing is completed, the two lifting frames 12 can move upward and reset under the action of the lifting springs 20, the two pressing racks 26 in the limiting mechanism 21 move with the movement of the pull rod 25, and the pressing rack 26 meshes with the pressing gear 27, driving the pressing gear 27 to rotate, and the pressing gear 27 in turn drives the first bevel tooth 28 coaxial therewith to rotate, and the first bevel tooth 28 meshes with the second bevel tooth 29, thereby driving the second bevel tooth 29 to rotate, and the second bevel tooth 29 is coaxially fixedly connected to the main gear 30, thereby driving the main gear 30 to rotate, and the main gear 30 meshes with the main gear ring 31. The main gear ring 31 serves as the input end of the two unlocking mechanisms 32, and transmits power to the unlocking mechanism 32 to realize the corresponding unlocking and resetting actions.

[0064] In order to supplement the specific structure of the unlocking mechanism 32, the following features are also specifically provided:

[0065] The unlocking mechanism 32 includes an unlocking gear 33, a gear seat 34, a transfer gear 35, an unlocking rack 36, a positioning seat 37 and a sliding seat 38. The unlocking gear 33 is meshed with the main gear ring 31, and the gear seat 34 is fixedly connected to the upper end of the tray 6 (such as Figure 7 As shown, the transfer gear 35 is rotatably connected to the upper end of the gear seat 34 (as shown in Figure 8 As shown in the figure, the unlocking rack 36 is slidably connected to the upper end of the tooth seat 34 and meshes with the transfer gear 35, the positioning seat 37 is fixedly connected to the upper end of the tooth seat 34, the sliding seat 38 is slidably connected to the positioning seat 37 and is fixedly connected to the unlocking rack 36, and the transfer gear 35 is coaxially fixedly connected to the unlocking gear 33. When the unlocking mechanism 32 is working, the rotation of the main gear ring 31 will drive the unlocking gear 33 to rotate, and the rotation of the unlocking gear 33 drives the transfer gear 35 fixedly connected thereto to rotate, and the rotation of the transfer gear 35 drives the unlocking rack 36 meshed therewith to slide on the upper end of the tooth seat 34. Since the sliding seat 38 is slidably connected to the positioning seat 37 and is fixedly connected to the unlocking rack 36, the sliding of the unlocking rack 36 will drive the sliding seat 38 to move, thereby realizing the corresponding action of the unlocking mechanism 32.

[0066] In order to enable the two limiting inclined rods 40 to move away from the ejector pin 13 when the lifting frame 12 moves upward, the following features are also provided:

[0067] The limiting mechanism 21 further includes a sliding frame 39, two sliding pins 41 and two sliding springs 42. The sliding frame 39 is fixedly connected to the upper end of the sliding seat 38 (such as Figure 8 As shown in the figure, two sliding pins 41 are respectively connected to the sliding frame 39 in a sliding manner, and one end of the two sliding pins 41 close to the top pin 13 is respectively connected to the corresponding limiting inclined rod 40, and two sliding springs 42 are respectively sleeved on the outside of the two sliding pins 41, and one end of the sliding spring 42 is connected to the sliding frame 39, and the other end is connected to the limiting inclined rod 40. When the sliding seat 38 moves, the sliding seat 38 will drive the sliding frame 39 to move, and then the sliding frame 39 will drive the limiting inclined rod 40 to move away from the top pin 13, and then the lifting frame 12 will move upward and reset under the action of the lifting spring 20, thereby completing the unlocking action.

[0068] The working principle of the device is that before the device is operated, the operator first places the battery rack 7 loaded with a number of lithium batteries 8 into the barrel box 3 through the feeding port 5 at the upper end of the heating chamber. At this time, the gravity of the battery rack 7 causes the lifting frame 12 to move downward until the output end of the corresponding unlocking mechanism 32 limits the ejector pin 13 through the cone sleeve 14, and the operator closes the feeding port 5 and starts the device.

[0069] After starting, the two output ends of the vortex tube 2 input hot air flow and cold air flow to the heating chamber and the refrigeration chamber respectively. In the heating chamber, the power motor 19 starts, drives the top pin 13 to rotate through the power gear 18 and the drive gear 17, and then drives the lifting frame 12 and the battery rack 7 to rotate, so that the lithium battery 8 is heated evenly. After the heating is completed, the assembly motor 43 starts, drives the tray 6 to rotate 180° through the assembly gear 44 and the assembly gear ring 45, so that the heated lithium battery 8 moves to the refrigeration chamber with the lifting frame 12.

[0070] During the rotation of the tray 6, the magnetic disk 16 and the bottom cover 15 ensure the continuous rotation of the top pin 13 through magnetic transmission, so that the lithium battery 8 can also be cooled evenly in the refrigeration chamber. At the same time, the hot air entrained by the insulation board 9 moves to the refrigeration chamber to buffer the temperature change of the lithium battery 8.

[0071] When the processing is finished, the cylinder 22 moves the tray seat 23, and through the pull rod 25 and the chuck 24 and other structures, on the one hand, it drives the related actions of the tray 6, and on the other hand, through a series of transmission structures such as the pressing rack 26 and the pressing gear 27, the power is transmitted to the unlocking mechanism 32. Finally, the unlocking gear 33 drives the transfer gear 35, the unlocking rack 36 and other actions to move the sliding seat 38. The movement of the sliding seat 38 will drive the limiting inclined rod 40 to move away from the ejector pin 13, and then the lifting frame 12 will move upward and reset under the action of the lifting spring 20, thereby completing the unlocking action, so that the operator can take the battery rack 7 out of the barrel box 3 after the processing is completed.

[0072] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A vortex tube heating and cooling drying oven for lithium batteries, comprising two battery racks (7) for carrying a plurality of lithium batteries (8), characterized in that: Also includes: Chassis (1); A barrel box (3) is coaxially fixedly arranged above the chassis (1), and two feeding ports (5) are formed on the upper end of the barrel box (3); A tray (6) is dynamically and sealingly connected to the lower end of the barrel box (3); The central axis (4) is coaxially fixedly connected to the tray (6); Two heat-insulating plates (10) are respectively arranged on both sides of the central axis (4) and are fixedly connected to the upper end of the tray (6); Two insulation plates (9) are respectively fixedly connected to two sides of the central axis (4) and divide the interior of the barrel box (3) into a heating chamber and a cooling chamber, and a side of the insulation plate (9) away from the central axis (4) slides against an inner wall of the barrel box (3); A vortex tube (2) is arranged on the side of the barrel box (3) and has two output ends which are respectively connected to the heating chamber and the refrigeration chamber; Two lifting mechanisms (11) are respectively arranged inside the heating chamber and the cooling chamber, the lifting mechanism (11) comprising a lifting frame (12), a top pin (13) and a cone sleeve (14), the lifting frame (12) is arranged above the tray (6), the battery frame (7) is detachably connected to the lifting frame (12), the top pin (13) is fixedly connected to the lower end of the lifting frame (12), and the cone sleeve (14) is coaxially fixedly connected to the top pin (13); The limiting mechanism (21) is connected to the tray (6) and comprises a cylinder (22) and four unlocking mechanisms (32). The cylinder (22) is fixedly arranged below the chassis (1). An unlocking mechanism (32) is respectively arranged on both sides of each lifting frame (12). The unlocking mechanism (32) positions the cone sleeve (14).

2. A vortex tube heating and cooling drying oven for lithium batteries according to claim 1, characterized in that: The limiting mechanism (21) further comprises an assembly motor (43), an assembly gear (44) and an assembly gear ring (45); the assembly motor (43) is arranged below the chassis (1); the assembly gear (44) is coaxially fixedly connected to the output end of the assembly motor (43); and the assembly gear ring (45) is coaxially fixedly connected to the tray (6) and meshes with the assembly gear (44).

3. The vortex tube heating and cooling drying oven for lithium batteries according to claim 1, characterized in that: The lifting mechanism (11) further comprises a power motor (19), a power gear (18) and a driving gear (17). The power motor (19) is fixedly arranged below the tray (6). The power gear (18) is coaxially fixedly connected to the output end of the power motor (19). The driving gear (17) is meshed with the power gear (18) and is coaxially arranged with the ejector pin (13). The driving gear (17) is the movable end of the lifting mechanism (11). When the driving gear (17) rotates, it drives the ejector pin (13) to rotate.

4. The vortex tube heating and cooling drying oven for lithium batteries according to claim 1, characterized in that: The lifting mechanism (11) further comprises a bottom sleeve (15) and a magnetic disk (16); the bottom sleeve (15) is rotatably connected to the heat insulation disk (10); the top pin (13) is key-connected to the bottom sleeve (15); the magnetic disk (16) is coaxially fixedly connected to the movable end of the lifting mechanism (11); and the magnetic disk (16) is connected to the bottom sleeve (15) via magnetic transmission.

5. The vortex tube heating and cooling drying oven for lithium batteries according to claim 1, characterized in that: The lifting mechanism (11) further comprises two lifting springs (20), which are symmetrically arranged on both sides of the lift pin (13), the upper ends of the lifting springs (20) being fixedly connected to the lifting frame (12), and the lower ends of the lifting springs (20) being fixedly connected to the heat insulation plate (10).

6. The vortex tube heating and cooling drying oven for lithium batteries according to claim 1, characterized in that: The limiting mechanism (21) further comprises a disc seat (23), two chucks (24) and two pull rods (25); the disc seat (23) is coaxially fixedly connected to the output end of the cylinder (22); the two pull rods (25) are respectively connected to the tray (6) in a dynamic sealing manner; the two pull rods (25) are the input ends of the limiting mechanism (21); the two chucks (24) are respectively fixedly connected to the lower ends of the two pull rods (25); and the chucks (24) and the inner side of the disc seat (23) rotate against each other.

7. The vortex tube heating and cooling drying oven for lithium batteries according to claim 1, characterized in that: The limiting mechanism (21) further comprises two downward pressing racks (26), two downward pressing gears (27), two first bevel teeth (28), two second bevel teeth (29), two main gears (30) and two main gear rings (31). The two main gear rings (31) are respectively rotatably connected to the two heat insulation plates (10) in a coaxial manner. The two main gears (30) are respectively rotatably arranged on both sides of the central shaft (4) and mesh with the corresponding main gear rings (31). The two second bevel teeth (29) are respectively connected to the two main gears. The two first bevel teeth (28) are coaxially fixedly connected to the two second bevel teeth (29), the two down-pressing gears (27) are coaxially fixedly connected to the two first bevel teeth (28), the two down-pressing racks (26) are slidably arranged beside the two down-pressing gears (27) and are meshed with the down-pressing gears (27), the two down-pressing racks (26) are respectively fixedly connected to the input ends of the limiting mechanism (21), and the two main gear rings (31) are the input ends of the two unlocking mechanisms (32).

8. The vortex tube heating and cooling drying oven for lithium batteries according to claim 1, characterized in that: The unlocking mechanism (32) comprises an unlocking gear (33), a tooth seat (34), a transfer gear (35), an unlocking rack (36), a positioning seat (37) and a sliding seat (38); the unlocking gear (33) is drivingly connected to the input end of the unlocking mechanism (32); the tooth seat (34) is fixedly connected to the upper end of the tray (6); the transfer gear (35) is rotationally connected to the upper end of the tooth seat (34); the unlocking rack (36) is slidably connected to the upper end of the tooth seat (34) and meshes with the transfer gear (35); the positioning seat (37) is fixedly connected to the upper end of the tooth seat (34); the sliding seat (38) is slidably connected to the positioning seat (37) and fixedly connected to the unlocking rack (36); and the transfer gear (35) is coaxially fixedly connected to the unlocking gear (33).

9. A vortex tube heating and cooling drying oven for lithium batteries according to claim 8, characterized in that: The limiting mechanism (21) further comprises a sliding frame (39), two sliding pins (41) and two sliding springs (42); the sliding frame (39) is fixedly connected to the upper end of the sliding seat (38); the two sliding pins (41) are respectively slidably connected to the sliding frame (39); one end of the two sliding pins (41) close to the top pin (13) is respectively fixedly connected to the corresponding limiting inclined rod (40); the two sliding springs (42) are respectively sleeved on the outside of the two sliding pins (41); one end of the sliding spring (42) is fixedly connected to the sliding frame (39) and the other end is fixedly connected to the limiting inclined rod (40).

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