CN215638430U - Drying device is used in lithium ion battery production - Google Patents

Abstract

The utility model provides a drying device for lithium ion battery production, which comprises a drying box body (100), wherein a drying cavity (10) is arranged in the drying box body (100), a partition plate (11) and battery fixing equipment (12) are arranged in the drying cavity (10), a motor cavity (13) is arranged at the bottom of the drying box body (100), a driving motor (14) is arranged in the motor cavity (13), the output end of the driving motor (14) is connected with a rotating shaft (15), a driving gear (151) and a helical blade (152) are sleeved on the rotating shaft (15), the driving gear (151) is respectively meshed with three driven gears (16), the driven gears (16) are meshed with an annular block (17), and the annular block (17) rotates at the bottom of the drying box body (100) and is connected with the partition plate (11) through a connecting rod (18). The drying device can quickly fix the lithium ion battery, ensures that the lithium ion battery is heated uniformly during drying, can realize wind power circulation, and has high drying efficiency and low production cost.

Description

Drying device is used in lithium ion battery production

Technical Field

The utility model relates to the technical field of lithium ion battery production equipment, in particular to a drying device for lithium ion battery production.

Background

Lithium ion batteries, commonly known as lithium batteries, are secondary batteries, i.e., rechargeable batteries, which operate by movement of lithium ions between a positive electrode and a negative electrode, during charging and discharging, Li⁺Intercalation and deintercalation to and from two electrodes: upon charging, Li⁺The lithium ion is extracted from the positive electrode, and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state, and vice versa during discharge. With the development of science and technology and the advance of new energy automobiles, the demand of the existing market for lithium ion batteries is larger and larger, and the production efficiency and the quality of the lithium ion batteries are controlled to become more and more important in the supply and demand relationship. In the production process of lithium ion batteries, baking of the batteries is an important part of the production process, and the aim is to remove moisture existing in the batteries so as to prevent potential safety hazards caused by the presence of the moisture.

However, the existing lithium ion battery drying equipment cannot realize quick installation and drying, greatly reduces the drying efficiency and slows down the production efficiency of the lithium ion battery; secondly, after hot air is introduced into the drying equipment, the lithium ion battery is heated unevenly, and the situation that the local lithium ion battery is heated too high to cause battery explosion is easy to occur; thirdly, wind power circulation cannot be realized, and energy waste is caused; fourthly, the lithium ion batteries in the drying equipment cannot be fixed, and the lithium ion batteries collide with each other in the drying process, so that the lithium ion batteries are damaged.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide a drying device for producing lithium ion batteries, which can realize quick installation and fixation of the lithium ion batteries and avoid the occurrence of mutual collision of the lithium ion batteries in the drying process; meanwhile, the device can ensure that the lithium ion battery is heated uniformly during drying, realizes effective circulation of wind power, and has high drying efficiency and low production cost.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a drying device is used in lithium ion battery production which characterized in that: the drying box comprises a drying box body, wherein a cylindrical drying cavity is arranged in the drying box body; the middle part of the drying cavity is provided with a partition panel, a plurality of heat conduction holes are uniformly formed in the partition panel, the outer wall of the partition panel is rotatably connected with the wall of the drying cavity, and a plurality of battery fixing devices are arranged at the upper end of the partition panel and correspond to the positions of the heat conduction holes; a motor cavity is formed in the middle of the bottom of the drying box body, a driving motor is fixedly arranged in the motor cavity, the output end of the driving motor is fixedly connected with a rotating shaft, one end, far away from the driving motor, of the rotating shaft penetrates through the bottom surface of the drying box body and is rotatably connected with the middle of the bottom surface of the partition board, and the rotating shaft is rotatably connected with the bottom of the drying box body; a driving gear is fixedly sleeved at the position, located at the upper end of the bottom surface of the drying cavity, of the outer wall of the rotating shaft, the periphery of the driving gear is respectively meshed with three driven gears, the three driven gears are in a planetary gear structure, and a plurality of spiral blades are fixedly sleeved at the position, located at the upper end of the driving gear, of the outer wall of the rotating shaft; the bottom surface of the drying cavity is provided with an annular block, the central axis of the annular block is collinear with the central axis of the rotating shaft, the lower part of the annular block is embedded into the bottom surface of the drying box body and is in sliding connection with the bottom surface of the drying box body (namely the annular block can rotate around the central axis of the rotating shaft), the inner side wall of the annular block is provided with a gear ring corresponding to the driven gear, and the gear ring is meshed with one end of the driven gear, which is far away from the driving gear; a plurality of connecting rods are fixedly arranged at the upper end of the annular block and are uniformly distributed around the central axis of the rotating shaft, and one end of each connecting rod, which is far away from the annular block, is fixedly connected with the bottom surface of the partition plate; the outer walls of the two sides of the drying box body are located at the positions between the partition plate and the annular block, a plurality of air inlet holes are formed in the position between the partition plate and the annular block, an air outlet hole is formed in the top of the drying box body, and the air inlet holes and the air outlet holes are respectively communicated with the drying cavity.

Further optimization, heat insulation box doors are arranged on two sides of the front surface of the drying box body.

For further optimization, the driving motor is fixedly connected with the motor cavity through a motor bracket; the driving motor is fixedly connected with the rotating shaft through a coupler.

Further optimization is carried out, the rotating shaft is rotatably connected with the bottom surface of the drying box body and the bottom surface of the partition plate through ball bearings.

Further optimization is carried out, the driven gear is arranged at the upper end of the bottom surface of the drying box body through a rotating rod, and the rotating rod is rotatably connected with the bottom surface of the drying box body.

Further optimization, the partition panel outer wall is fixedly connected with a sealing bearing inner wall in a sleeved mode, the sealing bearing outer wall is fixedly connected with the wall of the drying cavity, and relative rotation between the partition panel and the drying cavity is achieved through the sealing bearing.

Preferably, the drying box body and the partition plate are both made of heat insulation materials.

The battery fixing equipment comprises a fixed bottom plate, a breathable side plate and a movable end cover, wherein the bottom surface of the fixed bottom plate is fixedly connected with the top surface of the partition plate, the top surface of the fixed bottom plate is fixedly connected with the bottom of the breathable side plate, one side of the movable end cover is movably connected with the breathable side plate through a rotating pin, and the other side of the movable end cover is connected with the breathable side plate through a buckle; the fixed bottom plate is provided with a bottom through hole relative to the heat conducting hole, and the movable end cover and the breathable side plate are uniformly distributed with a plurality of heat dissipation holes.

Preferably, the number of the connecting rods is 3-5.

Preferably, the number of the spiral blades is 3-6.

The drying device is further optimized, a heating core body is fixedly arranged on the side wall of one side, far away from the drying cavity, of the air inlet hole, the heating core body is connected with a drying box through a guide pipe, the drying box is connected with a circulating air pump through a guide pipe, and the circulating air pump is communicated with the air outlet hole.

The utility model has the following technical effects:

according to the drying device, the driving motor, the rotating shaft, the driving gear, the driven gear, the annular block, the connecting rod and the partition plate are matched, so that the rotation of the band-pass spiral blade and the partition plate is realized simultaneously in the rotation process of the driving motor, hot air introduced into the air inlet is rapidly converged and pushed to the upper side heat conduction hole through the rotation of the spiral blade, the drying of the lithium ion battery is accelerated, and the drying efficiency is improved; the uniformity of drying airflow is ensured through the rotation of the partition plate, and the phenomenon of local overheating is avoided; through the setting of battery fixing equipment, ensure that the partition panel rotates the lithium ion of in-process and fixes on its point position all the time, avoid drying to rotate in-process lithium ion battery collision each other, cause the damage. This application compact structure, easy and simple to handle can effectively practice thrift the energy resource consumption among the drying process, improve drying efficiency, avoid lithium ion battery to appear damaging, the problem of guaranteeing even in the drying process.

Drawings

Fig. 1 is a schematic view of the overall structure of a drying apparatus according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Fig. 3 is a schematic structural diagram of a battery fixing device of the drying apparatus in the embodiment of the present invention.

100, a drying box body; 10. a drying cavity; 101. an air inlet hole; 102. an air outlet; 11. a partition panel; 110. sealing the bearing; 111. a heat conduction hole; 12. a battery securing device; 120. heat dissipation holes; 121. fixing the bottom plate; 1210. a bottom through hole; 122. a breathable side plate; 123. a movable end cap; 1231. a rotation pin; 1232. buckling; 13. a motor cavity; 130. a motor bracket; 14. a drive motor; 15. a rotating shaft; 150. a ball bearing; 151. a drive gear; 152. a helical blade; 16. a driven gear; 160. a rotating rod; 17. a ring block; 170. a gear ring; 18. a connecting rod; 19. a heat insulating box door; 200. heating the core; 300. drying the box; 400. a circulating air pump; 500. a conduit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," "sleeved," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the two elements can be directly connected or indirectly connected through an intermediate medium, and the two elements can be communicated with each other or the two elements can interact with each other, so that the specific meaning of the terms in the utility model can be understood according to specific situations by a person skilled in the art.

As shown in fig. 1-3, a drying device for lithium ion battery production, its characterized in that: comprises a drying box body 100, wherein a cylindrical drying cavity 10 is arranged in the drying box body 100; drying chamber 10 middle part sets up a partition panel 11, evenly sets up a plurality of heat conduction holes 111 on the partition panel 11 and the 11 outer walls of partition panel and drying chamber 10 chamber walls and passes through sealed bearing 110 and rotate and be connected, partition panel 11 outer walls and sealed bearing 110 inner wall fixed socket promptly and sealed bearing 110 outer walls and drying chamber 10 chamber walls fixed connection. A plurality of battery fixing devices 12 are arranged at the upper end of the partition plate 11 and corresponding to the positions of the heat conducting holes 111; a motor cavity 13 is formed in the middle end of the bottom of the drying box body 100, a driving motor 14 is fixedly arranged in the motor cavity 13 through a motor support 130, the output end of the driving motor 14 is fixedly connected with a rotating shaft 15 through a coupler (the coupler is not marked in the figure and is arranged according to the conventional coupler in the field, which is not specifically discussed in the application), one end of the rotating shaft 15, which is far away from the driving motor 14, penetrates through the bottom surface of the drying box body 100 and is rotatably connected with the middle part of the bottom surface of the partition plate 11 through a ball bearing 150, and the rotating shaft 15 is rotatably connected with the bottom of the drying box body 100 through the ball bearing 150 (as shown in fig. 1, and the rotating shaft 15 is not interfered with the heat conduction hole 111); a driving gear 151 is fixedly sleeved at the outer wall of the rotating shaft 15 and positioned at the upper end of the bottom surface of the drying cavity 10, the periphery of the driving gear 151 is respectively meshed with three driven gears 16, the three driven gears 16 form a planetary gear structure (as shown in fig. 2), a plurality of spiral blades 152 are fixedly sleeved at the outer wall of the rotating shaft 15 and positioned at the upper end of the driving gear 151, the number of the spiral blades 152 is 3-6, and 3 are shown in fig. 2; the bottom surface of the drying cavity 10 is provided with an annular block 17, the central axis of the annular block 17 is collinear with the central axis of the rotating shaft 15, the lower part of the annular block 17 is embedded into the bottom surface of the drying box body 100 and is in sliding connection with the bottom surface of the drying box body 100 (namely, the annular block 17 can rotate around the central axis of the rotating shaft 15), the inner side wall of the annular block 17 is provided with a gear ring 170 corresponding to the driven gear 16, and the gear ring 170 is meshed with one end of the driven gear 16, which is far away from the driving gear 151; a plurality of connecting rods 18 are fixedly arranged at the upper end of the annular block 17, the connecting rods 18 are uniformly distributed around the central axis of the rotating shaft 15, one ends of the connecting rods 18, far away from the annular block 17, are fixedly connected with the bottom surface of the partition plate 11 (and the connecting rods 18 are not interfered with the heat conducting holes 111), the number of the connecting rods is 3-5, and 3 connecting rods are shown in fig. 2; the outer walls of the two sides of the drying box body 100 and the position between the partition plate 11 and the annular block 17 are provided with a plurality of air inlet holes 101, the top of the drying box body 100 is provided with an air outlet hole 102, and the air inlet holes 101 and the air outlet hole 102 are respectively communicated with the drying cavity 10.

The drying box body 100 is provided with heat insulation box doors 19 on two sides of the front surface.

The driven gear 16 is disposed at the upper end of the bottom surface of the drying box body 100 through a rotating rod 160, and the rotating rod 160 is rotatably connected with the bottom surface of the drying box body 100.

The drying box body 100 and the partition plate 11 are made of heat insulating materials.

The battery fixing device 12 comprises a fixed bottom plate 121, a breathable side plate 122 and a movable end cover 123, wherein the bottom surface of the fixed bottom plate 121 is fixedly connected with the top surface of the partition plate 11, the top surface of the fixed bottom plate 121 is fixedly connected with the bottom of the breathable side plate 122, one side of the movable end cover 123 is movably connected with the breathable side plate 122 through a rotating pin 1231, and the other side of the movable end cover 123 is connected with the breathable side plate 122 through a buckle 1232; the fixed bottom plate 121 is provided with a bottom through hole 1210 corresponding to the heat conduction hole 111, and a plurality of heat dissipation holes 120 are uniformly distributed on the movable end cover 123 and the air-permeable side plate 122.

The side wall of one side of the air inlet 101 far away from the drying cavity 10 is fixedly provided with a heating core 200, the heating core 200 is connected with a drying box 300 through a conduit 500, the drying box 300 is connected with a circulating air pump 400 through a conduit 500, and the circulating air pump 400 is communicated with the air outlet 102.

The working principle is as follows:

when the drying box is used, firstly, the heat insulation box door is opened, then lithium ion batteries to be dried are sequentially placed into the battery fixing equipment 12, and the movable end cover 123 and the breathable side plate 122 are buckled through the buckle 1232, so that the lithium ion batteries are fixed in the battery fixing equipment 12; then, the heat insulation box door is closed, the heating core 200 and the driving motor 14 are started simultaneously, the driving motor 14 rotates to drive the rotating shaft 15 to rotate, the rotating shaft 15 simultaneously drives the driving gear 151 and the helical blade 152 to rotate, the helical blade 152 collects hot air conveyed by the heating core 200 and hot air at the lower part of the drying cavity 10 quickly and then conveys the hot air to the battery fixing equipment 12 through the heat conduction hole 111 and the bottom through hole 1210, so that the lithium ion battery in the lithium ion battery is dried, the dried air mixed water vapor enters the circulating pump 400 through the air outlet 102, and the dried air mixed water vapor is adsorbed by the drying box 300 and then conveyed into the drying cavity 10 through the heating core 200 again, so that wind power circulation and energy consumption saving are realized; drive gear 151 drives annular block 17 through driven gear 16 and rotates to drive partition panel 11 through connecting rod 18 and rotate, ensure that the hot-air dispersion is even, partition panel 11 can accelerate the hot-air circulation in the cell fixing equipment 12 simultaneously, accelerate its heat dissipation, avoid the high lithium ion battery explosion that leads to the fact of the high temperature in the cell fixing equipment 12.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a drying device is used in lithium ion battery production which characterized in that: the drying box comprises a drying box body (100), wherein a cylindrical drying cavity (10) is arranged in the drying box body (100); a partition plate (11) is arranged in the middle of the drying cavity (10), a plurality of heat conduction holes (111) are uniformly formed in the partition plate (11), the outer wall of the partition plate (11) is rotatably connected with the wall of the drying cavity (10), and a plurality of battery fixing devices (12) are arranged at the upper end of the partition plate (11) and corresponding to the positions of the heat conduction holes (111); a motor cavity (13) is formed in the middle end of the bottom of the drying box body (100), a driving motor (14) is fixedly arranged in the motor cavity (13), the output end of the driving motor (14) is fixedly connected with a rotating shaft (15), one end, far away from the driving motor (14), of the rotating shaft (15) penetrates through the bottom surface of the drying box body (100) and is rotatably connected with the middle of the bottom surface of the partition plate (11), and the rotating shaft (15) is rotatably connected with the bottom of the drying box body (100); a driving gear (151) is fixedly sleeved at the position, located at the upper end of the bottom surface of the drying cavity (10), of the outer wall of the rotating shaft (15), the periphery of the driving gear (151) is respectively meshed with three driven gears (16), the three driven gears (16) form a planetary gear structure, and a plurality of spiral blades (152) are fixedly sleeved at the position, located at the upper end of the driving gear (151), of the outer wall of the rotating shaft (15); an annular block (17) is arranged on the bottom surface of the drying cavity (10), the central axis of the annular block (17) is collinear with the central axis of the rotating shaft (15), the lower part of the annular block (17) is embedded into the bottom surface of the drying box body (100) and is in sliding connection with the bottom surface of the drying box body (100), a gear ring (170) is arranged on the inner side wall of the annular block (17) and corresponds to the driven gear (16), and the gear ring (170) is meshed with one end, away from the driving gear (151), of the driven gear (16); a plurality of connecting rods (18) are fixedly arranged at the upper end of the annular block (17), the connecting rods (18) are uniformly distributed around the central axis of the rotating shaft (15), and one end, far away from the annular block (17), of each connecting rod (18) is fixedly connected with the bottom surface of the partition plate (11); drying box body (100) both sides outer wall just is located partition panel (11) with position between annular piece (17) sets up a plurality of fresh air inlets (101), drying box body (100) top sets up an exhaust vent (102), fresh air inlet (101) with exhaust vent (102) respectively with stoving chamber (10) intercommunication.

2. The drying device for lithium ion battery production of claim 1, characterized in that: and heat insulation box doors (19) are arranged on two sides of the front surface of the drying box body (100).

3. The drying device for lithium ion battery production of claim 1, characterized in that: the driving motor (14) is fixedly connected with the motor cavity (13) through a motor bracket (130); the driving motor (14) is fixedly connected with the rotating shaft (15) through a coupler.

4. The drying device for lithium ion battery production of claim 1, characterized in that: the rotating shaft (15) is rotatably connected with the bottom surface of the drying box body (100) and the bottom surface of the partition plate (11) through a ball bearing (150).

5. The drying device for lithium ion battery production of claim 1, characterized in that: the driven gear (16) is arranged at the upper end of the bottom surface of the drying box body (100) through a rotating rod (160), and the rotating rod (160) is rotatably connected with the bottom surface of the drying box body (100).

6. The drying device for lithium ion battery production of claim 1, characterized in that: the outer wall of the partition board (11) is fixedly sleeved with the inner wall of a sealing bearing (110), and the outer wall of the sealing bearing (110) is fixedly connected with the wall of the drying cavity (10).

7. The drying device for lithium ion battery production of claim 1, characterized in that: the battery fixing equipment (12) comprises a fixed bottom plate (121), a breathable side plate (122) and a movable end cover (123), the bottom surface of the fixed bottom plate (121) is fixedly connected with the top surface of the partition plate (11), the top surface of the fixed bottom plate (121) is fixedly connected with the bottom of the breathable side plate (122), one side of the movable end cover (123) is movably connected with the breathable side plate (122) through a rotating pin (1231), and the other side of the movable end cover (123) is connected with the breathable side plate (122) through a buckle (1232); the fixed bottom plate (121) is provided with a bottom through hole (1210) relative to the heat conducting hole (111), and a plurality of heat dissipation holes (120) are uniformly distributed on the movable end cover (123) and the breathable side plate (122).

8. The drying device for lithium ion battery production of claim 1, characterized in that: keep away from fresh air inlet (101) one side lateral wall of stoving chamber (10) is fixed to be set up a heating core (200), heating core (200) are connected with a dry box (300) through pipe (500), dry box (300) are connected with an air circulating pump (400) through pipe (500), air circulating pump (400) with exhaust vent (102) intercommunication.

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