CN220991639U - Wind box device for lithium battery coating oven - Google Patents

Abstract

The utility model relates to the technical field of pole piece drying, and discloses a wind box device for a lithium battery coating oven, which comprises the following components: the wind box body, the holding chamber has all been seted up to the both sides of wind box body, and two sets of holding chamber are the intercommunication setting, through the cooperation between foraminiferous picture peg, the pressure release hole, lock screw and the wind box body, through extension arm-tie pulling adjustable fender, and move in the oval spout of lock screw on adjustable fender, the inseparable type that has improved adjustable fender and holding chamber top contact, make round hole and pressure release hole coincidence on the adjustable fender simultaneously, through the area of adjusting round hole and pressure release hole coincidence, adjust the air current atmospheric pressure in wind box body holding chamber, can freely adjust wind pressure release hole air-out size, control wind box body pressure release hole wind speed, adjust pole piece shake frequency, effectively prevent the coating defect production, can freely control the different festival oven wind speeds of fine setting, do not draw other festival ovens, simple structure and material, convenient change and dismantle.

Description

Wind box device for lithium battery coating oven

Technical Field

The utility model relates to the technical field of pole piece drying, in particular to a wind box device for a lithium battery coating oven.

Background

The specific energy of the lithium ion battery is high, and particularly the polymer lithium ion battery can realize the thinning of the rechargeable battery. Because the lithium ion battery has high volume specific energy and mass specific energy, can be charged and has no pollution, has the three characteristics of current battery industry development, has rapid development in markets such as telecom, information, passenger cars, energy storage and the like, and particularly has the greatest demand in electric vehicles and household storage, the coating is one of the key steps in the lithium battery production process, the quality of the battery is basically determined by the quality of the coating effect, an oven in the coating process mainly plays a role of drying a pole piece, a wind box is a key part of the oven, and dry hot air is blown out from a wind nozzle of the wind box after passing through a ship body, reaches the surface of a wet pole piece to take away solvent in the pole piece, so that the pole piece is dried;

Band-shaped disadvantages: when the drying air is sprayed out from the circular nozzle, the air flow speed is high enough to cause the surface of the coating to be disturbed, and belt-shaped defects are generated;

The spot-like disadvantages: the defects of figure or spot caused by uneven disturbance of air are abnormal. When the pole pieces are passed into the drying section, either during the drying process or during the condensation process, air is blown through the coating.

In the prior art, the aperture ratio of the tuyere is unchanged, and when the air pressure imbalance of the local area air flow in the oven causes the coating operation to be abnormal, the effective adjustment cannot be performed, so that the coating operation is abnormal, and therefore, a wind box device for the lithium battery coating oven is required to be provided.

Disclosure of utility model

The utility model aims to provide a wind box device for a lithium battery coating oven, which can freely adjust the air outlet size of a wind pressure relief hole, control the wind speed of the wind pressure relief hole of a wind box body and adjust the shaking frequency of a pole piece, and effectively prevent the coating defect from being generated so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a wind box device for a lithium battery coating oven, comprising:

The air box body is characterized in that two sides of the air box body are provided with accommodating cavities, the two groups of accommodating cavities are communicated, and the upper surface of the air box body is provided with a plurality of groups of pressure relief holes;

The porous plugboard is arranged in the two groups of containing cavities and mainly comprises a movable baffle and two groups of extending pulling plates, the two groups of extending pulling plates are integrally formed in the middle parts of two sides of the movable baffle, a plurality of groups of round holes are formed in the upper surface of the movable baffle, and the inner diameters of the plurality of groups of round holes are respectively identical to the inner diameters of the plurality of groups of pressure relief holes.

Preferably, the movable baffle is connected by two groups of spliced baffle boards in a clamping way, four groups of elliptical sliding grooves are formed in the upper surface of the movable baffle board, the four groups of elliptical sliding grooves are arranged in a rectangular array, and locking screws are inserted in the four groups of elliptical sliding grooves in a sliding way.

Preferably, the upper surface of wind box body has seted up the fixed screw hole that supplies four sets of locking screw threaded connection, and four sets of fixed screw holes are rectangular array setting.

Preferably, both ends of the upper surface of the wind box body are provided with jet flow grooves, the two groups of jet flow grooves are communicated with the two groups of containing cavities, and the plurality of groups of pressure relief holes are communicated with the two groups of containing cavities.

Preferably, the widths of the two groups of extension pull plates are the same as the width of the air inlet of the cavity, and the upper surface of the movable baffle is abutted against the top of the cavity.

Preferably, the length of the movable baffle is smaller than that of the wind box body, the width of the movable baffle is smaller than that of the cavity inner cavity, and the thickness of the movable baffle is smaller than that of the cavity.

Preferably, the top of the cavity is symmetrically and fixedly connected with two groups of guide rails, and the other two sides of the movable baffle are respectively and slidably connected with the two groups of guide rails.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model mainly pulls the movable baffle through the extension pulling plate by matching between the plugboard with the hole, the pressure relief hole, the locking screw and the wind box body and moves in the elliptical chute on the movable baffle by the locking screw, thereby improving the contact tightness between the movable baffle and the top of the containing cavity, simultaneously enabling the round hole on the movable baffle to coincide with the pressure relief hole, freely adjusting the air flow pressure of the containing cavity in the wind box body by adjusting the area of the coinciding round hole and the pressure relief hole, controlling the air outlet size of the air outlet hole of the air relief hole, controlling the air speed of the pressure relief hole of the wind box body and adjusting the shaking frequency of the pole piece, effectively preventing the coating defect, freely controlling the air speed of baking ovens with different sections, not involving other baking ovens, and having simple structure and convenient replacement and disassembly.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic top view of the wind box of the present utility model;

FIG. 3 is a schematic view of the overall structure of the apertured insert plate of the present utility model;

FIG. 4 is a left side view of the wind box of the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 2A;

Fig. 6 is an enlarged schematic view of the structure at B in fig. 3.

In the figure: 1. a wind box body; 2. a jet slot; 3. a pressure relief hole; 4. a fixed screw hole; 5. a plugboard with holes; 51. a movable baffle; 52. an elliptical chute; 53. an extension pulling plate; 54. a round hole; 6. locking a screw; 7. a cavity.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: a wind box device for a lithium battery coating oven, comprising:

the air box body 1, the two sides of the air box body 1 are provided with accommodating cavities 7, the two groups of accommodating cavities 7 are communicated, and the upper surface of the air box body 1 is provided with a plurality of groups of pressure relief holes 3;

The hole plugboards 5 are arranged in the two groups of containing cavities 7, the hole plugboards 5 mainly comprise movable baffles 51 and two groups of extension pulling plates 53, the two groups of extension pulling plates 53 are integrally formed in the middle parts of two sides of the movable baffles 51, a plurality of groups of round holes 54 are formed in the upper surface of the movable baffles 51, and the inner diameters of the plurality of groups of round holes 54 are respectively the same as the inner diameters of the plurality of groups of pressure relief holes 3.

The movable baffle plate 51 is clamped by two groups of spliced baffle plates, four groups of oval sliding grooves 52 are formed in the upper surface of the movable baffle plate 51, the four groups of oval sliding grooves 52 are arranged in a rectangular array, locking screws 6 are slidably inserted into the four groups of oval sliding grooves 52, the movable baffle plate 51 can slide with the locking screws 6 conveniently through the oval sliding grooves 52, and therefore the movable baffle plate 51 can move in the accommodating cavity 7 conveniently, and the overlapping area of the round holes 54 and the pressure relief holes 3 can be adjusted conveniently.

The upper surface of the wind box body 1 is provided with fixing screw holes 4 for four groups of locking screws 6 to be in threaded connection, and the four groups of fixing screw holes 4 are arranged in a rectangular array, so that the stability of the movable baffle plate 51 at the top of the accommodating cavity 7 is improved through the four groups of fixing screw holes 4 and the locking screws 6.

The upper surface both ends of wind box body 1 all begin to have jet current groove 2, and two sets of jet current groove 2 all are linked together with two sets of appearance chamber 7, and multiunit pressure release hole 3 all are linked together with two sets of appearance chamber 7, jet current groove 2, pressure release hole 3 and hold chamber 7 and communicate, dry hot-blast through holding chamber 7, blow out through jet current groove 2 and pressure release mouth, be convenient for to the polar plate coating is dry, improves the quality after the coating is dry, reduces banded defect and zebra-like defect.

The width of the two groups of extension pulling plates 53 is the same as the width of the air inlet of the accommodating cavity 7, the upper surface of the movable baffle plate 51 is in contact with the top of the inner cavity of the accommodating cavity 7, and the two sides of the extension pulling plates slide with the inner side of the air inlet of the accommodating cavity 7, so that the stability of the holed inserting plate 5 during moving is ensured, and the shaking of the holed inserting plate is avoided.

The length of the movable baffle plate 51 is smaller than that of the wind box body 1, the width of the movable baffle plate 51 is smaller than that of the inner cavity of the containing cavity 7, the thickness of the movable baffle plate 51 is smaller than that of the containing cavity 7, the movable baffle plate 51 is convenient to move in the containing cavity 7, the overlapping area between the plurality of groups of round holes 54 and the plurality of groups of pressure relief holes 3 is convenient to adjust, and therefore the airflow passing rate is effectively controlled.

Two sets of guide rails are symmetrically and fixedly connected to the top of the inner cavity of the accommodating cavity 7, the other two sides of the movable baffle plate 51 are respectively connected with the two sets of guide rails in a sliding mode, and the stability of the perforated plugboard 5 is improved through the sliding rail at the top of the accommodating cavity 7, so that the tightness between the perforated plugboard 5 and the pressure relief hole 3 is improved.

When the air box is used, dry hot air enters the air box body 1 through the cavity 7 and is blown out through the jet slot 2 and the pressure relief hole 3, the movable baffle plate 51 is provided with a round hole 54 with the same diameter as the pressure relief hole 3, the position of the movable baffle plate 51 can be changed, the round hole 54 and the pressure relief hole 3 can be overlapped or partially overlapped, the cross section area of air flow passing through is changed, the movable baffle plate 51 is fixed through sliding among the locking screw 6, the fixing screw hole 4 and the elliptical sliding slot 52, the movable baffle plate 51 is conveniently slid through the elliptical sliding slot 52 and the locking screw 6, the stability of the movable baffle plate 51 is improved through four groups of locking screws 6, and the strip-shaped defects and the spot-shaped defects in the coating process are solved through changing the opening ratio of the pressure relief hole.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (7)

1. A wind box device for a lithium battery coating oven is characterized in that: comprising the following steps:

The air box body (1), the two sides of the air box body (1) are provided with accommodating cavities (7), the two groups of accommodating cavities (7) are communicated, and the upper surface of the air box body (1) is provided with a plurality of groups of pressure relief holes (3);

The double-hole type pressure relief device comprises a perforated plugboard (5), wherein the perforated plugboard (5) is arranged in two groups of containing cavities (7), the perforated plugboard (5) mainly comprises a movable baffle (51) and two groups of extending pulling plates (53), the two groups of extending pulling plates (53) are integrally formed in the middle parts of two sides of the movable baffle (51), a plurality of groups of round holes (54) are formed in the upper surface of the movable baffle (51), and the inner diameters of the plurality of groups of round holes (54) are respectively identical to the inner diameters of the plurality of groups of pressure relief holes (3).

2. The wind box device for a lithium battery coating oven according to claim 1, wherein: the movable baffle (51) is clamped by two groups of spliced baffle plates, four groups of elliptical sliding grooves (52) are formed in the upper surface of the movable baffle (51), the four groups of elliptical sliding grooves (52) are arranged in a rectangular array, and locking screws (6) are inserted in the four groups of elliptical sliding grooves (52) in a sliding mode.

3. The wind box device for a lithium battery coating oven according to claim 2, wherein: the upper surface of wind box body (1) has seted up fixed screw hole (4) that supplies four sets of lock screw (6) threaded connection, and four sets of fixed screw holes (4) are rectangular array setting.

4. The wind box device for a lithium battery coating oven according to claim 1, wherein: the two ends of the upper surface of the wind box body (1) are provided with jet flow grooves (2), the two groups of jet flow grooves (2) are communicated with the two groups of containing cavities (7), and the plurality of groups of pressure relief holes (3) are communicated with the two groups of containing cavities (7).

5. The wind box device for a lithium battery coating oven according to claim 1, wherein: the widths of the two groups of extension pull plates (53) are the same as the width of the air inlet of the containing cavity (7), and the upper surface of the movable baffle plate (51) is abutted against the top of the inner cavity of the containing cavity (7).

6. The wind box device for a lithium battery coating oven according to claim 5, wherein: the length of the movable baffle plate (51) is smaller than that of the wind box body (1), the width of the movable baffle plate (51) is smaller than that of the inner cavity of the containing cavity (7), and the thickness of the movable baffle plate (51) is smaller than the depth of the containing cavity (7).

7. The wind box device for a lithium battery coating oven according to claim 1, wherein: two groups of guide rails are symmetrically and fixedly connected to the top of the inner cavity of the accommodating cavity (7), and the other two sides of the movable baffle plate (51) are respectively connected with the two groups of guide rails in a sliding mode.