Drying module

Abstract

The drying module comprises an air nozzle body, the air nozzle body comprises an upper air inlet flow dividing cavity and a lower pressure relief cavity, and the air inlet flow dividing cavity is used for conducting internal splayed flow dividing on hot air; pressure relief openings are formed in the two opposite sides of the pressure relief cavity; a plurality of transverse pressure relief air equalizing holes are evenly formed in the bottom of the pressure relief cavity in the length direction, and the hole diameters of the transverse pressure relief air equalizing holes are gradually reduced from the center to the two sides. The pole piece drying device can effectively prevent the pole pieces from deviating and wrinkling in the drying process, so that the pole pieces are conveyed stably, and the qualified rate of products is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery coating machines, and in particular to a drying module. Background Art

[0002] At present, the drying module used in the lithium battery coating machine industry dries the electrode through hot air from the nozzle. However, due to the large pressure difference between the air outlet of the nozzle and the electrode, and the thin and soft characteristics of the electrode, the positive pressure generated between the nozzle and the electrode will cause the electrode to bend and arch its edge and shake, thereby affecting the deviation and wrinkling of the electrode and causing product defects. For this reason, the utility model proposes a drying module. Utility Model Content

[0003] The embodiment of the present application provides a drying module, which can effectively prevent the electrode from deviation and wrinkling during the drying process, so that the electrode can run smoothly, thereby ensuring the product qualification rate.

[0004] In view of this, the present application provides a drying module, comprising: a nozzle body;

[0005] The air nozzle body includes an upper air inlet diversion chamber and a lower pressure relief chamber, wherein the air inlet diversion chamber is used to divert the hot air in an inward-facing figure-eight shape;

[0006] Pressure relief ports are provided on opposite sides of the pressure relief chamber;

[0007] The bottom of the pressure relief chamber is provided with a plurality of transverse pressure relief and air equalization holes evenly arranged along the length direction;

[0008] The aperture of the transverse pressure relief and air equalization holes gradually decreases from the center to both sides.

[0009] Optionally, the air inlet diversion cavity includes an air inlet and two air outlets;

[0010] The two air outlets are respectively located at the front and rear sides of the pressure relief chamber, and the two air outlets are arranged in an inward-facing "X" shape.

[0011] Optionally, a diverter plate is provided in the air inlet diverter cavity, and the air inlet diverter cavity forms the air outlet through the diverter plate.

[0012] Optionally, the diverter plate is symmetrical about the midline of the air inlet diverter cavity perpendicular to the direction of movement of the pole piece, so that the two air outlets are symmetrically arranged about the midline of the air inlet diverter cavity perpendicular to the direction of movement of the pole piece.

[0013] Optionally, the diverter plate includes a diverter portion and a guide portion;

[0014] The middle portion of the diversion portion bulges upward along the center line of the air inlet diversion cavity perpendicular to the direction of movement of the pole piece;

[0015] The guide portion is symmetrically arranged on both sides of the diversion portion with respect to a midline of the air inlet diversion cavity perpendicular to the movement direction of the pole piece.

[0016] Optionally, the nozzle body is detachably installed in the oven via a snap-fit ​​structure.

[0017] Optionally, the transverse pressure relief and air equalization holes are spindle-shaped through holes.

[0018] Optionally, the lateral pressure relief and air balancing holes are distributed in an array.

[0019] Optionally, the length of the nozzle body is greater than the width of the pole piece.

[0020] Optionally, the nozzle body is in an elongated strip structure; the material of the nozzle body is a high-temperature resistant material.

[0021] It can be seen from the above technical scheme that the embodiment of the present application has the following advantages: the drying module diverts the hot air in an inward eight-shaped manner through the air inlet diversion chamber, and blows it to the surface of the electrode for drying, which can reduce the bending of the electrode. By opening pressure relief ports on both sides of the pressure relief chamber, and evenly opening a plurality of transverse pressure relief and air equalization holes along the length direction at the bottom of the pressure relief chamber, the hot air and moisture can be promptly returned to the pressure relief chamber through the transverse pressure relief and air equalization holes, and then discharged from the pressure relief ports on both sides of the pressure relief chamber to reduce the formation of positive pressure. At the same time, the moisture generated by the hot air after drying the electrode can be discharged from the pressure relief port together with the hot air, which can effectively improve the drying efficiency. The aperture of the transverse pressure relief and air equalization holes gradually decreases from the center to both sides, and the ventilation volume can be used to balance the pressure difference between the two edges and between them, thereby reducing the problem of electrode deviation and wrinkling caused by the pressure difference, thereby making the electrode belt run smoothly, thereby ensuring the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the drying module in the embodiment of the present application when in use;

[0023] Figure 2 for Figure 1 Cross-sectional view in the AA direction;

[0024] Figure 3 for Figure 2 A magnified view of the details of part C in the middle;

[0025] Figure 4 for Figure 1 Cross-sectional view in the middle BB direction;

[0026] Wherein, the accompanying drawings are marked as follows:

[0027] 01-nozzle body, 02-air inlet diversion chamber, 03-pressure relief chamber, 04-pressure relief port, 05-horizontal pressure relief and air equalization hole, 06-transmission roller, 07-pole piece, 08-diversion plate, 09-snap-lock structure, 10-diversion part, 11-guide part. DETAILED DESCRIPTION

[0028] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 those skilled in the art without creative work are within the scope of protection of this application.

[0029] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application.

[0031] This application provides an embodiment of a drying module. Figures 1 to 4 .

[0032] The drying module in this embodiment includes: a nozzle body 01, the nozzle body 01 includes an upper air inlet diversion chamber 02 and a lower pressure relief chamber 03, the air inlet diversion chamber 02 is used to divert the hot air in an inward eight-shaped manner; pressure relief ports 04 are provided on opposite sides of the pressure relief chamber 03; a plurality of transverse pressure relief and air balancing holes 05 are evenly provided at the bottom of the pressure relief chamber 03 along the length direction, and the aperture of the transverse pressure relief and air balancing holes 05 gradually decreases from the center to both sides.

[0033] It should be noted that: this drying module diverts the hot air in an inward eight-shaped manner through the air inlet diversion chamber 02, and blows it to the surface of the electrode 07 for drying, which can reduce the bending of the electrode 07. By opening pressure relief ports 04 on opposite sides of the pressure relief chamber 03, and evenly opening multiple horizontal pressure relief and air equalization holes 05 along the length direction at the bottom of the pressure relief chamber 03, the hot air and moisture can be promptly returned to the pressure relief chamber 03 through the horizontal pressure relief and air equalization holes 05, and then discharged from the pressure relief ports 04 on opposite sides of the pressure relief chamber 03 to reduce the formation of positive pressure. At the same time, the moisture generated by the hot air after drying the electrode 07 can be discharged from the pressure relief port 04 together with the hot air, which can effectively improve the drying efficiency. The aperture of the horizontal pressure relief and air equalization holes 05 gradually decreases from the center to both sides, and the ventilation volume can be used to balance the pressure difference between the two edges and between them, thereby reducing the problem of electrode 07 deviation and wrinkling caused by the pressure difference, and thus making the electrode 07 run smoothly, thereby ensuring the product qualification rate.

[0034] The above is the first embodiment of a drying module provided by the embodiment of the present application. The following is the second embodiment of a drying module provided by the embodiment of the present application. For details, please refer to Figures 1 to 4 .

[0035] The drying module in this embodiment includes: a nozzle body 01, the nozzle body 01 includes an upper air inlet diversion chamber 02 and a lower pressure relief chamber 03, the air inlet diversion chamber 02 is used to divert the hot air in an inward eight-shaped manner; pressure relief ports 04 are provided on opposite sides of the pressure relief chamber 03; a plurality of transverse pressure relief and air balancing holes 05 are evenly provided at the bottom of the pressure relief chamber 03 along the length direction, and the aperture of the transverse pressure relief and air balancing holes 05 gradually decreases from the center to both sides.

[0036] Specifically, the air inlet diversion cavity 02 includes an air inlet and two air outlets. The two air outlets are respectively located at the front and rear sides of the pressure relief cavity 03, and the two air outlets are arranged in an inner eight-shaped shape.

[0037] A diverter plate 08 is provided in the air inlet diverter cavity 02 , and the air inlet diverter cavity 02 forms an air outlet through the diverter plate 08 .

[0038] The diverter plate 08 is symmetrical about the midline of the air inlet diverter cavity 02 perpendicular to the movement direction of the pole piece 07 , so that the two air outlets are symmetrically arranged about the midline of the air inlet diverter cavity 02 perpendicular to the movement direction of the pole piece 07 .

[0039] The diverter plate 08 includes a diverter portion 10 and a guide portion 11; the middle portion of the diverter portion 10 protrudes upward along the center line of the air inlet diverter cavity 02 perpendicular to the movement direction of the pole piece 07; the guide portion 11 is symmetrically arranged on both sides of the diverter portion 10 about the center line of the air inlet diverter cavity 02 perpendicular to the movement direction of the pole piece 07.

[0040] The nozzle body 01 is detachably mounted in the oven via a snap-fit ​​structure 09 , which allows the nozzle body 01 to be disassembled for ease of later maintenance and replacement.

[0041] The transverse pressure relief and air equalization hole 05 can be a spindle-shaped through hole.

[0042] The transverse pressure relief and air balancing holes 05 can be distributed in an array, that is, the transverse pressure relief and air balancing holes 05 can be arranged in two rows or more.

[0043] The length of the nozzle body 01 is greater than the width of the pole piece 07, so that the hot air can flow back in time from the horizontal pressure relief and air equalization holes 05 on both sides of the nozzle body 01 (beyond the pole piece 07).

[0044] The nozzle body 01 is in a long strip structure; the material of the nozzle body 01 is a high temperature resistant material.

[0045] In specific implementation, the pole piece 07 runs from right to left on the driving roller 06 and needs to dry the surface wet material. The hot air is diverted from the air inlet diversion cavity 02 of the nozzle body 01 to form an inner eight-shaped shape and blown to the surface of the pole piece 07 for drying. There is no blocking space under the nozzle body 01 where there is no pole piece 07, and the flow can be refluxed in time. There is a small amount of space between the edge of the pole piece 07 and the bottom of the nozzle body 01. Because the side part will also have a slight positive pressure phenomenon, the pole piece 07 forms a flat The positive pressure on the surface is large, and the hot air and moisture cannot flow back in time, so ensure that the pressure difference between the two edges of the pole piece 07 and between them is different. The aperture of the horizontal pressure relief and equalizing air hole 05 gradually decreases from the center to both sides. The two edges are set to have small positive pressures, and the pressure difference in the middle is large, so the hole is gradually enlarged to increase the reflow area, so that the ventilation volume balances the pressure difference between the two edges and between them, and flows back into the pressure relief chamber 03 through the horizontal pressure relief and equalizing air hole 05, and then is discharged from the pressure relief ports 04 on the opposite sides of the pressure relief chamber 03 to reduce the formation of positive pressure, make the belt running smooth, and improve the drying efficiency at the same time.

[0046] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A drying module, characterized in that: include: Nozzle body; The air nozzle body includes an upper air inlet diversion chamber and a lower pressure relief chamber, wherein the air inlet diversion chamber is used to divert the hot air in an inward-facing figure-eight shape; Pressure relief ports are provided on opposite sides of the pressure relief chamber; The bottom of the pressure relief chamber is evenly provided with a plurality of transverse pressure relief and air equalization holes along the length direction; The aperture of the transverse pressure relief and air equalization holes gradually decreases from the center to both sides.

2. The drying module according to claim 1, characterized in that: The air inlet diversion cavity includes an air inlet and two air outlets; The two air outlets are respectively located at the front and rear sides of the pressure relief chamber, and the two air outlets are arranged in an inward-facing "X" shape.

3. The drying module according to claim 2, characterized in that: A diverter plate is provided in the air inlet diverter cavity, and the air inlet diverter cavity forms the air outlet through the diverter plate.

4. The drying module according to claim 3, characterized in that: The diverter plate is symmetrical about the center line of the air inlet diverter cavity perpendicular to the direction of movement of the pole piece, so that the two air outlets are symmetrically arranged about the center line of the air inlet diverter cavity perpendicular to the direction of movement of the pole piece.

5. The drying module according to claim 3, characterized in that: The diverter plate includes a diverter portion and a guide portion; The middle portion of the diversion portion bulges upward along the center line of the air inlet diversion cavity perpendicular to the direction of movement of the pole piece; The guide portion is symmetrically arranged on both sides of the diversion portion with respect to a midline of the air inlet diversion cavity perpendicular to the movement direction of the pole piece.

6. The drying module according to claim 1, characterized in that: The air nozzle body is detachably installed in the oven through a snap-fit ​​structure.

7. The drying module according to claim 1, characterized in that: The transverse pressure relief and air balancing holes are spindle-shaped through holes.

8. The drying module according to claim 1, characterized in that: The lateral pressure relief vents are distributed in an array.

9. The drying module according to claim 1, characterized in that: The length of the nozzle body is greater than the width of the pole piece.

10. The drying module according to claim 1, characterized in that: The air nozzle body is in an elongated strip-shaped structure, and the material of the air nozzle body is a high-temperature resistant material.

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