Lithium battery drying device

Abstract

The utility model discloses a lithium battery drying device which comprises a drying device body, a battery piece placing assembly and a drying assembly, the drying device body comprises a drying oven body, and an opening and closing door is installed at the front end of the drying oven body in a hinged mode; the battery piece containing assembly comprises a battery piece containing box, the battery piece containing box is fixedly installed in the drying oven body, a containing plate is detachably installed in the battery piece containing box, a plurality of vent holes are formed in the containing plate, and a plurality of supporting rods are fixedly connected to the containing plate. The drying assembly comprises a mounting shell. The battery piece placing assembly and the drying assembly are arranged, the bottoms of battery pieces are supported through the supporting rods, hot air can make contact with the upper surfaces and the lower surfaces of the battery pieces at the same time, and therefore the drying efficiency of the battery pieces is improved; and hot air for drying the battery piece can be recycled by the return pipe for cyclic utilization, so that the energy waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery drying, and particularly relates to a lithium battery drying device. Background Art

[0002] During the production of lithium batteries, after coating is completed, the battery cells need to be dried to evaporate the liquid solvent and adhesive on the surface of the film layer to make the film layer more firm and stable.

[0003] Ovens are commonly used to dry lithium batteries. To improve drying efficiency, fans are typically used to supply air within the red line, allowing the air to carry heat generated by the oven's heating wires to the battery cells. However, when this air carries heat and comes into contact with the battery cells, the cells are placed inside the oven, so the hot air only comes into contact with the top surface of the cells. Therefore, there is room for improvement in drying efficiency, and the hot air cannot be effectively recycled, resulting in energy waste.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a lithium battery drying device, which can solve the problems of low drying efficiency of battery cells and inability to recycle hot air during drying.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A lithium battery drying device, comprising:

[0008] The drying device body comprises an oven body, the front end of which is hingedly provided with a switch door for controlling the opening and closing of the oven body.

[0009] The battery cell placement assembly includes a battery cell placement box, which is fixedly installed in the oven body. A placement plate is detachably installed in the battery cell placement box, and the placement plate is used to place the battery cells that need to be dried. The placement plate is provided with a plurality of ventilation holes. Since the battery cells placed on the placement plate are dried by hot air, the ventilation holes allow the hot air to flow. A plurality of support rods are fixedly connected to the placement plate. In order for the hot air to dry the bottom of the battery cell, the battery cell is supported by the support rods so that the hot air can pass through the ventilation holes and contact the bottom of the battery cell, thereby allowing the hot air to contact the upper and lower surfaces of the battery cell at the same time, thereby improving the efficiency of drying the battery cell.

[0010] The drying assembly includes a mounting shell, which is mounted between the upper end wall of the oven body and the upper end wall of the cell storage box. A heating wire is mounted within the mounting shell, and a delivery pipe is mounted at the lower end of the mounting shell. The lower end of the delivery pipe is mounted on the upper end wall of the cell storage box. A delivery branch pipe is mounted on the side wall of the delivery pipe, and the other end of the delivery branch pipe is mounted on the lower end wall of the cell storage box. Air is delivered within the mounting shell, heated by the heating wire, and then delivered to the upper and lower ends of the cell storage box through the delivery pipe and air inlet. This allows hot air to enter both ends of the cell storage box simultaneously, thereby allowing the hot air to dry both ends of the cell storage box.

[0011] In one or more embodiments of the present invention, a sealing gasket is provided on the side wall of the door adjacent to the oven body. When the door is closed against the oven body, one side of the sealing gasket abuts against the front side wall of the cell storage box. This allows the sealing gasket to seal the front end of the cell storage box, preventing hot air from escaping from the front end of the cell storage box while the cells are being dried within the cell storage box.

[0012] In one or more embodiments of the present invention, the plurality of ventilation holes and the plurality of support rods are arranged in an interlaced manner, so that when the battery cells are placed on the support rods, the hot air passing through the ventilation holes can better dry the bottom of the battery cells.

[0013] In one or more embodiments of the present invention, a pair of sliders are fixedly connected to the left and right side walls of the placement plate, and a pair of slide rails are fixedly connected to the inner sides of the left and right sides of the battery cell placement box.

[0014] In one or more embodiments of the present invention, a pair of sliders are respectively slidably connected to a pair of slide rail bodies, and the sliders enable the placement plate to be installed in the battery cell placement box in a sliding connection manner, so that the placement plate can be easily slid out of and into the battery cell placement box, so that when the battery cells are placed and dried on the placement plate and then taken out, the placement and removal of the battery cells can be facilitated by sliding the placement plate out.

[0015] In one or more embodiments of the present invention, air inlets are provided on the wall panels at the upper and lower ends of the mounting shell, the lower end of the delivery pipe is installed on the air inlet of the upper end wall panel of the mounting shell, and the end of the delivery branch pipe away from the delivery pipe is installed on the air inlet of the lower end wall panel of the mounting shell, so that the hot air delivered by the delivery pipe and the delivery branch pipe can enter from the top and the bottom of the battery cell placement box at the same time through the air inlet.

[0016] In one or more embodiments of the present invention, a diversion box is installed on the inner wall of the upper and lower wall panels of the mounting shell, and a plurality of diversion holes are opened on the wall panel of the diversion box opposite to the upper and lower wall panels of the mounting shell. The incoming hot air is diverted through the diversion holes on the diversion box so that the hot air is evenly distributed in the battery cell placement box, thereby improving the heating efficiency of the battery cells.

[0017] In one or more embodiments of the present invention, the plurality of diverter holes are arranged in a ring-shaped pattern, each of which is inclined toward the outside of the diverter box, allowing hot air to diffuse through the diverter holes. Furthermore, the inclination of the diverter holes in different rings is arranged to gradually increase from the center of the diverter box toward the sides, ensuring uniform distribution of hot air within the battery cell storage box.

[0018] In one or more embodiments of the present invention, a fan is mounted on the upper end of the mounting housing to deliver ambient air into the mounting housing. An air inlet pipe is mounted on the fan to deliver ambient air into the fan. The inlet pipe is positioned external to the oven body with its port facing downward to prevent the entry of external impurities during air intake. A regulating valve is mounted on the inlet pipe to adjust the amount of air entering the mounting housing by switching the regulating valve.

[0019] In one or more embodiments of the present invention, an air outlet is provided on the right side wall of the battery cell storage box. A return pipe is installed outside the air outlet. The end of the return pipe away from the air outlet is installed on the air inlet pipe. The connection between the return pipe and the air inlet pipe is located below the regulating valve. The return pipe can be used to transport the hot air in the battery cell storage box to the air inlet pipe, so that the hot air in the battery cell storage box can be recycled. At the same time, the connection between the return pipe and the air inlet pipe is located below the regulating valve, so that the inflow of outside air can be reduced by adjusting the regulating valve.

[0020] Compared with the prior art, the present invention is provided with a battery cell placement assembly and a drying assembly, which supports the bottom of the battery cell through a support rod so that hot air can contact the upper and lower surfaces of the battery cell at the same time, thereby improving the drying efficiency of the battery cell; the hot air dried by the battery cell will be recovered by the return pipe for recycling, thereby reducing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a three-dimensional diagram of a lithium battery drying device in one embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the interior of a lithium battery drying device in one embodiment of the present invention;

[0024] Figure 3 This is a right side cross-sectional view of a lithium battery drying device in one embodiment of the present utility model;

[0025] Figure 4 This is a front cross-sectional view of a lithium battery drying device in one embodiment of the present utility model;

[0026] Figure 5 In one embodiment of the present utility model Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a schematic diagram of placing a plate in one embodiment of the present invention.

[0028] Description of main reference numerals:

[0029] 1-drying device body, 11-oven body, 12-switch door, 13-sealing gasket, 2-cell placement assembly, 21-cell placement box, 22-placement plate, 23-vent, 24-support rod, 25-slider, 26-slide rail body, 3-drying assembly, 31-mounting shell, 32-heating wire, 33-delivery pipe, 34-air inlet, 35-diverter box, 36-diverter hole, 37-delivery branch pipe, 38-air outlet, 39-return pipe, 310-fan, 311-inlet pipe, 312-regulating valve. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0031] like Figures 1 to 4 As shown, a lithium battery drying device in one embodiment of the present invention includes a drying device body 1, a battery cell placement component 2 and a drying component 3.

[0032] like Figure 1 and Figure 3As shown, the drying device body 1 includes an oven body 11 , and a switch door 12 is hingedly mounted on the front end of the oven body 11 . The switch door 12 is used to control the opening and closing of the oven body 11 .

[0033] like Figures 2 to 4 As shown, the cell placement assembly 2 includes a cell placement box 21, which is fixedly mounted in the oven body 11. A placement plate 22 is detachably mounted in the cell placement box 21. The placement plate 22 is used to place the cells that need to be dried. A plurality of vents 23 are provided on the placement plate 22. Since the cells placed on the placement plate 22 are dried by hot air, the vents 23 allow the hot air to flow. A plurality of support rods 24 are fixedly connected to the placement plate 22. In order for the hot air to dry the bottom of the cell, the cell is supported by the support rods 24, so that the hot air can pass through the vents 23 and contact the bottom of the cell, thereby allowing the hot air to contact the upper and lower surfaces of the cell at the same time, thereby improving the efficiency of drying the cell.

[0034] like Figure 3 As shown, a sealing gasket 13 is provided on the side wall of the door 12 near the oven body 11. When the door 12 is closed on the oven body 11, one side of the sealing gasket 13 abuts against the front side wall of the cell placement box 21. The sealing gasket 13 can seal the front end of the cell placement box 21, so that hot air will not escape from the front end of the cell placement box 21 when the cells are dried inside the cell placement box 21.

[0035] like Figure 6 As shown, the multiple vents 23 and the multiple support rods 24 are arranged in a staggered manner, so that when the battery cells are placed on the support rods 24, the hot air passing through the vents 23 can better dry the bottom of the battery cells.

[0036] like Figure 2 and Figure 6 As shown, a pair of sliders 25 are fixedly connected to the left and right side walls of the placement plate 22 , and a pair of slide rails 26 are fixedly connected to the inner sides of the left and right sides of the battery cell placement box 21 .

[0037] like Figure 2 and Figure 6 As shown, a pair of sliders 25 are respectively slidably connected to a pair of slide rail bodies 26. The sliders 25 allow the placement plate 22 to be installed in the battery cell placement box 21 in a sliding connection manner, so that the placement plate 22 can be easily slid out of and into the battery cell placement box 21. When the battery cells are placed on and dried on the placement plate 22 and then removed, the placement and removal of the battery cells can be facilitated by sliding the placement plate 22 out.

[0038] like Figure 2 and Figure 4 As shown, the drying assembly 3 includes a mounting shell 31, which is mounted between the upper end wall of the oven body 11 and the upper end wall of the cell placement box 21. A heating wire 32 is mounted within the mounting shell 31, and a delivery pipe 33 is mounted at the lower end of the mounting shell 31. The lower end of the delivery pipe 33 is mounted on the upper end wall of the cell placement box 21. A delivery branch pipe 37 is mounted on the side wall of the delivery pipe 33, and the other end of the delivery branch pipe 37 is mounted on the lower end wall of the cell placement box 21. By delivering air within the mounting shell 31, the air is heated by the heating wire 32 and then delivered to the upper and lower ends of the cell placement box 21 through the delivery pipe 33 and the air inlet 34. This allows hot air to enter the upper and lower ends of the cell placement box 21 at the same time, thereby allowing the hot air to dry the upper and lower ends of the cell placement box 21 at the same time.

[0039] like Figure 3 and Figure 4 As shown, air inlets 34 are provided on the wall panels at the upper and lower ends of the mounting shell 31, the lower end of the delivery pipe 33 is mounted on the air inlet 34 of the upper end wall panel of the mounting shell 31, and the end of the delivery branch pipe 37 away from the delivery pipe 33 is mounted on the air inlet 34 of the lower end wall panel of the mounting shell 31, so that the hot air delivered by the delivery pipe 33 and the delivery branch pipe 37 can enter from the top and bottom of the battery cell placement box 21 at the same time through the air inlet 34.

[0040] like Figures 3 to 5 As shown, diversion boxes 35 are installed on the inner walls of the upper and lower wall panels of the mounting shell 31. A plurality of diversion holes 36 are provided on the wall panels of the diversion box 35 opposite to the upper and lower wall panels of the mounting shell 31. The incoming hot air is diverted through the diversion holes 36 on the diversion box 35 so that the hot air is evenly distributed in the battery cell placement box 21, thereby improving the heating efficiency of the battery cells.

[0041] like Figure 5 As shown, multiple diversion holes 36 are arranged in a ring-shaped pattern. Each of the diversion holes 36 is tilted toward the outside of the diversion box 35, allowing hot air to diffuse through the diversion holes 36. The inclination of the diversion holes 36 on different rings is arranged to gradually increase from the center of the diversion box 35 to both sides, ensuring that the hot air is evenly distributed within the battery cell placement box 21.

[0042] like Figures 2 to 4 As shown, a fan 310 is mounted on the upper end of the mounting housing 31, through which external air is transported into the mounting housing 31. An air inlet pipe 311 is mounted on the fan 310, which transports external air into the fan 310. The air inlet pipe 311 is positioned on the outside of the oven body 11, with the port facing downward to prevent the entry of external impurities during air intake. A regulating valve 312 is mounted on the air inlet pipe 311, and the amount of air entering the mounting housing 31 is adjusted by the on / off value of the regulating valve 312.

[0043] like Figures 2 to 4 As shown, an air outlet 38 is provided on the right side wall of the cell storage box 21. A return pipe 39 is installed outside the air outlet 38. The end of the return pipe 39 away from the air outlet 38 is installed on the air inlet pipe 311. The connection between the return pipe 39 and the air inlet pipe 311 is located below the regulating valve 312. The return pipe 39 can transport the hot air in the cell storage box 21 to the air inlet pipe 311, so that the hot air in the cell storage box 21 can be recycled. At the same time, the connection between the return pipe 39 and the air inlet pipe 311 is located below the regulating valve 312, so that the adjustment of the regulating valve 312 can reduce the entry of outside air.

[0044] When in use, slide the placement plate 22 out of the cell placement box 21, and place the cells to be dried on the support rods 24 in sequence. After the cells are placed, slide the placement plate 22 into the cell placement box 21, then close the switch door 12 on the oven body 11, turn on the heating wire 32 and start the fan 310. The fan 310 will transport the outside air into the installation shell 31 through the air inlet pipe 311. The air is then heated by the heating wire 32 and transported through the delivery pipe 33 and the delivery branch pipe 37. The hot air will enter the diversion box 35 through the top and bottom of the battery cell placement box 21, and then after the hot air is diverted through the diversion hole 36, the hot air on the top will contact the upper surface of the battery cell, and the hot air at the bottom will contact the bottom of the battery cell through the vent hole 23, so that the hot air heats and dries the upper and lower surfaces of the battery cell at the same time. Then the hot air in the battery cell placement box 21 is transported to the air inlet pipe 311 through the return pipe 39, so that it can be transported to the installation shell 31 through the fan 310 for circulation.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A lithium battery drying device, characterized in that: include: The drying device body includes an oven body, the front end of which is hingedly provided with a switch door; The cell placement assembly includes a cell placement box, the cell placement box is fixedly mounted in the oven body, a placement plate is detachably mounted in the cell placement box, the placement plate has a plurality of vent holes, and a plurality of support rods are fixedly connected to the placement plate; The drying assembly includes a mounting shell, which is installed between the upper end wall plate of the oven body and the upper end wall plate of the battery cell placement box. A heating wire is installed in the mounting shell. A conveying pipe is installed at the lower end of the mounting shell. The lower end of the conveying pipe is installed on the upper end wall plate of the battery cell placement box. A conveying branch pipe is installed on the side wall of the conveying pipe. The other end of the conveying branch pipe is installed on the lower end wall plate of the battery cell placement box.

2. A lithium battery drying device according to claim 1, characterized in that: A sealing gasket is provided on the side wall of the switch door close to the oven body. When the switch door is closed on the oven body, one side of the sealing gasket abuts against the front side wall of the battery cell placement box.

3. A lithium battery drying device according to claim 1, characterized in that: The plurality of vent holes and the plurality of support rods are arranged in a staggered manner.

4. A lithium battery drying device according to claim 1, characterized in that: A pair of sliding blocks are fixedly connected to the left and right side walls of the placement plate, and a pair of slide rail bodies are fixedly connected to the inner sides of the left and right sides of the battery cell placement box.

5. A lithium battery drying device according to claim 4, characterized in that: A pair of sliders are respectively slidably connected to a pair of slide rail bodies, and the sliders enable the placement plate to be installed in the battery cell placement box in a sliding connection manner.

6. A lithium battery drying device according to claim 1, characterized in that: Air inlets are provided on the upper and lower wall panels of the mounting shell. The lower end of the delivery pipe is mounted on the air inlet of the upper wall panel of the mounting shell. The end of the delivery branch pipe away from the delivery pipe is mounted on the air inlet of the lower wall panel of the mounting shell.

7. The lithium battery drying device according to claim 1, characterized in that: A diversion box is installed on the inner side walls of the upper and lower wall plates of the installation shell, and a plurality of diversion holes are opened on the wall plates of the diversion box opposite to the upper and lower wall plates of the installation shell.

8. A lithium battery drying device according to claim 7, characterized in that: The plurality of diversion holes are arranged in a plurality of rings, and the plurality of diversion holes are arranged in a manner of being inclined toward the outside of the diversion box, and the inclinations of the diversion holes on different rings are arranged in a manner of gradually increasing from the center of the diversion box to both sides.

9. The lithium battery drying device according to claim 1, characterized in that: A fan is installed on the upper end of the installation shell, an air intake pipe is installed on the fan, and a regulating valve is installed on the air intake pipe.

10. A lithium battery drying device according to claim 9, characterized in that: An air outlet is provided on the right side wall of the battery cell placement box, a return pipe is installed on the outside of the air outlet, the end of the return pipe away from the air outlet is installed on the air inlet pipe, and the connection between the return pipe and the air inlet pipe is located below the regulating valve.

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