Drying device for lithium battery cell

Abstract

The utility model provides a drying device for a lithium battery cell, which comprises a drying box, a drying box, a drying box cover, a drying box cover, a drying box cover and a drying box cover, the outer side of the drying box is provided with a box door, and a cavity for accommodating a lithium battery is arranged in the drying box; the cavity is communicated with the outside through the box door; the supporting assemblies are arranged on the two sides of the cavity respectively and support the bearing table, each supporting assembly comprises a sliding supporting block and a supporting table, the bearing table slides on the sliding supporting block and the supporting table, the supporting table is provided with an inclined plane and a horizontal plane, and the sliding supporting block is arranged on the side, away from the horizontal plane, of the supporting table. The height of the sliding supporting block is reduced through simultaneous operation of the two supporting assemblies, the bearing table is made to make contact with the inclined face, when the bearing table is pulled out, the inclined supporting assemblies enable the bearing table to reduce pulling-out resistance and enhance horizontal sliding force under the help of the gravity of the bearing table, the difficulty in the discharging operation process is reduced, and the discharging efficiency is improved. The loading and unloading efficiency of the bearing platform is improved.

Description

Technical Field

[0001] This utility model belongs to the field of battery cell drying technology, and in particular relates to a drying device for lithium battery cells. Background Technology

[0002] To ensure high quality, the production process of lithium batteries requires the use of drying ovens to dry the battery casing, electrodes, electrode rolls, and cells. Lithium battery cells typically employ a cylindrical structure, which, due to its inherent structural characteristics, necessitates specialized equipment for precise positioning and placement to improve loading and unloading efficiency.

[0003] In existing technologies, most brackets for cylindrical battery cells use a plug-in structure and are placed on a tray inside the drying equipment. The large weight of the battery cells and their neat arrangement result in a large overall weight of the bracket when it is full. When inserting the cells before drying, the initial velocity of the cells during the pushing process and the ease of applying force during the pushing action do not affect the loading. However, when removing the bracket as a whole after drying, the user needs to provide a large pulling force to move the bracket, making the unloading operation difficult and the loading and unloading efficiency of the support platform low. Summary of the Invention

[0004] This utility model provides a drying device for lithium battery cells, which aims to solve the problems of the current drying equipment requiring users to provide a large pulling force to move the entire bracket when it is pulled away after drying, making the unloading operation difficult and the loading and unloading efficiency of the support platform low.

[0005] This utility model is implemented as follows: a drying device for lithium battery cells, comprising:

[0006] A drying oven, wherein the drying oven has a door on the outside and a cavity inside the drying oven for accommodating lithium batteries; the cavity is connected to the outside through the door.

[0007] The support assembly includes a support platform and a support component. The support component is located on both sides of the cavity and supports the support platform. The support component includes a sliding support block and a support platform. The support platform slides on the sliding support block and the support platform. The support platform has an inclined surface and a horizontal surface. The sliding support block is located on the side of the support platform away from the horizontal surface.

[0008] When the height of the sliding support block is flush with the horizontal plane, the support assembly provides horizontal support to the carrier platform. After drying, when the height of the sliding support block decreases, the carrier platform contacts the inclined surface and slides out of the cavity along the inclined surface.

[0009] Preferably, the side wall of the cavity is provided with a sliding chamber, the sliding chamber is provided with a lead screw assembly for driving the sliding support block to move, the sliding chamber is provided with a sliding groove, and the sliding support block extends into the sliding chamber through the sliding groove and is assembled and connected with the lead screw assembly.

[0010] Preferably, the sliding compartment is further provided with a limiting guide rail, and the sliding support block is provided with a limiting groove that is adapted to the limiting guide rail.

[0011] Preferably, the limiting groove has a trapezoidal cross-sectional shape.

[0012] Preferably, the lead screw assembly includes a lead screw and a lead screw motor. The two ends of the lead screw are mounted on the side wall of the sliding chamber via bearings. The motor shaft of the lead screw motor is connected to the lead screw. The portion of the sliding support block that extends into the sliding chamber is provided with a screw hole. The sliding support block is mounted on the lead screw through the screw hole.

[0013] Preferably, the support platform includes a top plate, a bottom plate, and two sets of side connecting plates connected between the top plate and the bottom plate. The top plate extends beyond the side connecting plates to form a sliding outer edge plate, which overlaps with the support assembly.

[0014] Preferably, the top plate has an array of limiting annular grooves to accommodate the insertion of cylindrical lithium batteries.

[0015] Preferably, both the top plate and the bottom plate are provided with air holes.

[0016] Preferably, the support platform includes a first rod segment and a second rod segment, the first rod segment is located at the end of the second rod segment away from the door, the end face of the first rod segment away from the ground is a horizontal plane, and the end face of the second rod segment away from the ground is an inclined plane.

[0017] Preferably, the number of the support platform and support components is not less than one set.

[0018] Compared with the prior art, the embodiments of this application have the following main advantages:

[0019] The drying device for lithium battery cells provided by this utility model uses a support platform that is directly inserted into a guide rail formed by two sets of parallel support components. After the drying operation is completed, the height of the sliding support block is lowered by the simultaneous operation of the two sets of support components, so that the support platform contacts the inclined surface. When the support platform is pulled out, the inclined support components reduce the resistance during the pull-out process and enhance the horizontal sliding force with the help of its own weight, thereby reducing the difficulty of the unloading operation and improving the loading and unloading efficiency of the support platform. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a drying device for lithium battery cells provided by this utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of a drying device for lithium battery cells provided by this utility model.

[0022] Figure 3 This is a schematic diagram of the cavity structure of a drying device for lithium battery cells provided by this utility model.

[0023] Figure 4 This is a schematic diagram of the support platform in a drying device for lithium battery cells provided by this utility model.

[0024] Figure 5 This is a schematic diagram of the support component structure of a drying device for lithium battery cells provided by this utility model.

[0025] Figure 6 This is a schematic diagram of the support platform structure of a drying device for lithium battery cells provided by this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Drying oven; 110. Oven door; 120. Control panel; 130. Sliding compartment; 131. Sliding groove; 132. Limit rail;

[0028] 200. Support platform; 210. Top plate; 220. Side connecting plate; 230. Base plate;

[0029] 300, Support assembly; 310, Sliding support block; 311, Limiting groove; 312, Guide groove; 320, Support platform; 321, Inclined surface; 322, Horizontal surface; 330, Lead screw assembly. Detailed Implementation

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0031] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0032] This utility model embodiment provides a drying device for lithium battery cells, such as... Figures 1-6 As shown, the drying device for lithium battery cells includes:

[0033] A drying chamber 100 is provided with a door 110 on the outside and a cavity for accommodating lithium batteries inside. The cavity is connected to the outside through the door 110. The inside of the drying chamber 100 is provided with a fan, heating coil and other structures that can generate a hot air source. The hot air diffuses into the cavity through an exhaust port to dry the battery cells. The cavity is also provided with a pipe for vacuuming, and an external vacuum device is used to suck out the internal airflow to accelerate the drying effect.

[0034] The support platform 200 and the support assembly 300 are respectively disposed on both sides of the cavity and support the support platform 200. The support assembly 300 includes a sliding support block 310 and a support platform 320. The support platform 200 slides on the sliding support block 310 and the support platform 320. The support platform 320 is provided with an inclined surface 321 and a horizontal surface 322. The sliding support block 310 is disposed on the side of the support platform 320 away from the horizontal surface 322.

[0035] The cavity has a sliding chamber 130 on its side wall, and a lead screw assembly 330 is provided inside the sliding chamber 130. The sliding chamber 130 has a sliding groove 131. The sliding support block 310 extends into the sliding chamber 130 through the sliding groove 131 and is assembled and connected to the lead screw assembly 330. The movement of the lead screw assembly 330 drives the sliding support block 310 to move up and down, changing its relative position with the horizontal plane of the support platform 320. When the height of the sliding support block 310 is flush with the horizontal plane 322, the support assembly 300 provides horizontal support to the carrier platform 200. After drying, when the height of the sliding support block 310 decreases, the carrier platform 200 contacts the inclined surface 321 and slides out of the cavity along the inclined surface 321.

[0036] In this embodiment, the support platform 200 includes a top plate 210, a bottom plate 230, and two sets of side connecting plates 220 connected between the top plate 210 and the bottom plate 230. The top plate 210 extends beyond the side connecting plates 220 to form a sliding outer edge plate. The sliding outer edge plate overlaps with the support assembly 300. The top plate 210 has an array of limiting annular grooves for accommodating the insertion of cylindrical lithium batteries. The bottom plate 230 provides support for the cylindrical lithium batteries.

[0037] The support platform 200 is directly inserted into the guide rail formed by two sets of parallel support components 300. After the drying operation is completed, the height of the sliding support block 310 is lowered by the simultaneous operation of the two sets of support components 300, so that the support platform 200 contacts the inclined surface 321. At this time, when the support platform 200 is pulled out, the inclined support components 300 reduce the resistance when the support platform 200 is pulled out under its own weight, reduce the difficulty of operation during the operation, and improve the loading and unloading efficiency of the support platform 200.

[0038] In a preferred embodiment of this invention, the sidewall of the cavity is provided with a sliding chamber 130, and the sliding chamber 130 is provided with a lead screw assembly 330 for driving the sliding support block 310 to move. The sliding chamber 130 is provided with a sliding groove 131, and the sliding support block 310 extends into the sliding chamber 130 through the sliding groove 131.

[0039] The lead screw assembly 330 includes a lead screw and a lead screw motor. The two ends of the lead screw are mounted on the side wall of the sliding chamber 130 through bearings. The motor shaft of the lead screw motor is connected to the lead screw. The sliding support block 310 has a screw hole on the part that extends into the sliding chamber 130. The sliding support block 310 is mounted on the lead screw through the screw hole.

[0040] In this embodiment, the lead screw assembly 330 adopts existing technology and equipment. The sliding support block 310 and the lead screw mainly adopt the control principle of ball screw. The sliding support block 310 adopts a lead screw drive structure with small stroke error. When the two sets of support assemblies 300 can move simultaneously under the control of each set of lead screw motors, the two sides of the bearing platform 200 are not prone to uneven force. The lead screw drive structure has a good support effect and can still provide sufficient support force when the bearing platform 200 tilts, preventing the sliding support block 310 from being pulled away quickly and the bearing platform 200 from slipping off unexpectedly.

[0041] During the process of removing the support platform 200, the support platform 200 needs to be supported on the side near the door 110 first, and then the support platform 200 is gradually released by the screw. The drying oven 100 is equipped with a control panel 120. When the release action is started, the two sets of screw motors will operate synchronously to avoid excessive and uneven force on both sides.

[0042] In a further preferred embodiment of the present invention, the sliding compartment 130 is further provided with a limiting guide rail 132, and the sliding support block 310 is provided with a limiting groove 311 that is adapted to the limiting guide rail 132.

[0043] The limiting groove 311 has a trapezoidal cross-sectional shape. The limiting groove 311 and the limiting guide rail 132 are used to enhance the connection between the drying oven 100 and the support assembly 300 and improve the support effect on the support platform 200.

[0044] In a preferred embodiment of this invention, the support platform 320 includes a first rod segment and a second rod segment, with the first rod segment located at the end of the second rod segment away from the door 110.

[0045] In this embodiment, the end face of the first rod segment away from the ground is a horizontal plane 322, and the end face of the second rod segment away from the ground is an inclined plane 321. The top of the inclined plane 321 is flush with the horizontal plane 322. The angle between the inclined plane 321 and the horizontal plane 322 is no more than 5° to avoid excessive sliding force due to gravity after tilting, which would prevent the support platform 200 from being effectively supported.

[0046] In this embodiment, the support platform 200 is made of a material that dissipates heat easily. After the box door 110 is opened, it dissipates heat quickly, making it easy for operators or other mechanical structures to support it. The top plate 210 can be provided with grooves to facilitate force application, making it convenient to manually pull out.

[0047] As a preferred embodiment of this invention, the number of the bearing platform 200 and the support assembly 300 can be multiple sets to improve the drying effect of the equipment.

[0048] In this embodiment, both the top plate 210 and the bottom plate 230 are provided with air holes to facilitate airflow inside the equipment and reduce mutual interference.

[0049] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A drying device for lithium battery cells, characterized in that, include: A drying oven, wherein the drying oven has a door on the outside and a cavity for accommodating lithium batteries inside; The cavity is connected to the outside through a door; The support assembly includes a support platform and a support component. The support component is located on both sides of the cavity and supports the support platform. The support component includes a sliding support block and a support platform. The support platform slides on the sliding support block and the support platform. The support platform has an inclined surface and a horizontal surface. The sliding support block is located on the side of the support platform away from the horizontal surface. When the height of the sliding support block is flush with the horizontal plane, the support assembly provides horizontal support to the carrier platform. After drying, when the height of the sliding support block decreases, the carrier platform contacts the inclined surface and slides out of the cavity along the inclined surface.

2. The drying apparatus for lithium battery cells as described in claim 1, characterized in that, The cavity has a sliding chamber on its side wall, and a lead screw assembly that drives the sliding support block to move is provided inside the sliding chamber. The sliding chamber has a sliding groove, and the sliding support block extends into the sliding chamber through the sliding groove and is assembled and connected with the lead screw assembly.

3. The drying apparatus for lithium battery cells as described in claim 2, characterized in that, The sliding compartment is also equipped with a limiting guide rail, and the sliding support block is equipped with a limiting groove that matches the limiting guide rail.

4. The drying apparatus for lithium battery cells as described in claim 3, characterized in that, The cross-sectional shape of the limiting groove is trapezoidal.

5. A drying apparatus for lithium battery cells as described in claim 4, characterized in that, The lead screw assembly includes a lead screw and a lead screw motor. The two ends of the lead screw are mounted on the side wall of the sliding chamber via bearings. The motor shaft of the lead screw motor is connected to the lead screw. The portion of the sliding support block that extends into the sliding chamber is provided with a screw hole. The sliding support block is mounted on the lead screw through the screw hole.

6. A drying apparatus for lithium battery cells as described in claim 5, characterized in that, The support platform includes a top plate, a bottom plate, and two sets of side connecting plates connected between the top plate and the bottom plate. The top plate extends beyond the side connecting plates to form a sliding outer edge plate, which overlaps the support assembly.

7. A drying apparatus for lithium battery cells as described in claim 6, characterized in that, The top plate is arrayed with limiting ring grooves to accommodate the insertion of cylindrical lithium batteries.

8. A drying apparatus for lithium battery cells as described in claim 7, characterized in that, Both the top plate and the bottom plate are provided with air holes.

9. A drying apparatus for lithium battery cells as described in claim 8, characterized in that, The support platform includes a first rod segment and a second rod segment. The first rod segment is located at the end of the second rod segment away from the door. The end face of the first rod segment away from the ground is a horizontal plane, and the end face of the second rod segment away from the ground is an inclined plane.

10. A drying apparatus for lithium battery cells as described in claim 9, characterized in that, The number of the support platform and support components shall not be less than one set.

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