Vacuum drying furnace

Abstract

The utility model belongs to the technical field of vacuum drying equipment, and particularly relates to a vacuum drying furnace. The furnace body is provided with a valve port which is opened and closed in a first position direction; a gas inlet part is arranged at one end of the furnace body in the second position direction, a gas outlet part is arranged at the other end of the furnace body in the second position direction, dry gas enters the furnace body through the gas inlet part and is discharged from the gas outlet part, and the horizontal heights of the gas inlet part and the gas outlet part are higher than the height of a battery piece; the gas inlet part and the gas outlet part are arranged on the two sides of the furnace body, the battery piece is conveyed into the cavity of the furnace body, the furnace body is vacuumized, then gas backfilling is needed, and dry gas enters from the gas inlet part at one end in the second position direction of the furnace body, passes through the position above the battery piece and is discharged from the gas outlet part at the other end in the second position direction of the furnace body. The battery piece can be uniformly dried during gas backfilling, and the drying effect and efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of perovskite film vacuum drying equipment, and in particular relates to a vacuum drying furnace. Background Art

[0002] Perovskite solar cells are solar cells that use perovskite structural materials as light-absorbing materials. They are representatives of the third generation of high-efficiency thin-film cells and have the advantages of high efficiency and low cost. Vacuum drying is one of the important processes in the production process of perovskite cells. The cells are carried by a carrier plate and driven by rollers to enter and exit a vacuum drying furnace for drying. The air intake structure in the related art is an upper air intake or / and a lower air intake. Gas backfilling is required after vacuuming. The gas backfilling of the upper and lower air intake structures will cause uneven drying of the cells, resulting in poor drying effect.

[0003] Therefore, a vacuum drying furnace is provided which can solve the problem of uneven drying of battery cells. Utility Model Content

[0004] The utility model aims to provide a vacuum drying furnace.

[0005] In order to solve the above technical problems, the utility model provides a vacuum drying furnace, comprising: a furnace body, which is provided with a valve port for opening and closing in the first position direction; an air inlet is provided at one end of the furnace body in the second position direction, and an air outlet is provided at the other end, and the drying gas is suitable for entering the furnace body through the air inlet and being discharged from the air outlet, wherein the horizontal heights of the air inlet and the air outlet are higher than the height of the battery cell.

[0006] Furthermore, the air intake portion includes a plurality of air intake holes, and the air intake holes are suitable for connecting to an air intake pipe.

[0007] Furthermore, an air intake flow equalizer plate is provided on the inner wall of the cavity of the furnace body, and the air intake flow equalizer plate is communicated with the air intake hole.

[0008] Furthermore, the air outlet portion includes a plurality of air outlet holes, and the air outlet holes are suitable for being connected to an air outlet pipe, wherein the air outlet pipe is connected to a vacuum pump.

[0009] Furthermore, a gas outlet flow equalizer plate is provided on the inner wall of the cavity of the furnace body, and the gas outlet flow equalizer plate is communicated with the gas outlet hole.

[0010] Furthermore, a plurality of supporting rollers are rotatably arranged in the cavity of the furnace body, and a plurality of rollers are arranged on the supporting rollers, wherein the rotation direction of the supporting rollers is adapted to the conveying direction of the battery sheets.

[0011] Furthermore, a plurality of vacuum holes are provided through the upper portion of the furnace body, and the vacuum holes are suitable for connecting to a vacuum pump.

[0012] Furthermore, a plurality of layers of air-distributing plates are provided at the bottom of the vacuum hole, and the air-distributing plates are connected to the vacuum hole.

[0013] Furthermore, a valve plate is rotatably provided in the first position direction of the furnace body, wherein the valve plate is suitable for covering the valve port.

[0014] Furthermore, a support column is provided in the first position direction of the furnace body, and a plurality of hinge blocks are provided on the back side of the valve plate, wherein the hinge blocks are rotatably provided on the support column.

[0015] Beneficial effects of the utility model:

[0016] 1. By setting the furnace body, the furnace body structure is simple and reliable, which provides a good working environment for the vacuum drying furnace of the utility model; by setting the valve port and opening and closing the valve port, the manipulator transports the battery cell into the cavity of the furnace body through the valve port and then closes it, which improves the drying efficiency of the battery cell;

[0017] 2. By arranging the air inlet and the air outlet on both sides of the furnace body, the battery cells are transported into the cavity of the furnace body, and the furnace body is evacuated. After that, gas backfilling is required. The dry gas enters from the air inlet at one end of the furnace body in the direction of the second position, passes over the battery cells, and is discharged from the air outlet at the other end of the furnace body in the direction of the second position, so that the battery cells can be evenly dried during gas backfilling, thereby improving the drying effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the vacuum drying furnace and the transport assembly of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the vacuum drying furnace of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the vacuum drying furnace of the utility model.

[0022] In the figure:

[0023] 100. furnace body, 110. valve port, 120. air inlet, 121. air inlet hole, 130. air outlet, 131. air outlet hole, 140. air inlet uniform flow plate, 150. air outlet uniform flow plate, 160. supporting roller, 161. roller, 170. vacuum hole, 180. air uniform flow plate, 190. valve plate, 191. hinge block, 192. support column, 200. manipulator, 210. battery cell. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In some embodiments, in order to facilitate subsequent description, before describing the specific structure of the vacuum drying furnace, the present application first describes the structure of the vacuum drying furnace. Figure 1 A first direction (X), a second direction (Y) and a third direction (Z) are defined. The first direction is the length direction of the vacuum drying furnace when it is normally placed, such as the X direction; the second direction is the width direction of the vacuum drying furnace when it is normally placed, such as the Y direction; the third direction is the height direction of the vacuum drying furnace when it is normally placed, such as the Z direction. In this application, the first direction (X) and the second direction (Y) are perpendicular to each other.

[0026] In some embodiments, Figures 1 to 3As shown, the utility model provides a vacuum drying furnace, comprising: a furnace body 100, which is provided with a valve port 110 in a first position direction; an air inlet 120 is provided at one end of the furnace body 100 in a second position direction, and an air outlet 130 is provided at the other end, and the drying gas is suitable for entering the furnace body 100 through the air inlet 120 and being discharged from the air outlet 130, wherein the horizontal heights of the air inlet 120 and the air outlet 130 are higher than the height of the battery cell 210; by providing the furnace body 100, the furnace body 100 has a simple and reliable structure, and provides a good working environment for the vacuum drying furnace of the utility model; by providing the valve port 110 and opening and closing the valve port 110, the battery cell 210 can be transported into the cavity of the furnace body 100 through the valve port 110 and then closed, thereby improving the drying efficiency of the battery cell 210 ; By arranging the air inlet 120 and the air outlet 130 on both sides of the furnace body 100, the robot 200 transports the battery cell 210 into the cavity of the furnace body 100, and the furnace body 100 is evacuated. After that, gas backfilling is required, and the dry gas enters from the air inlet 120 at one end of the furnace body 100 in the direction of the second position, passes over the battery cell 210, and is discharged from the air outlet 130 at the other end of the furnace body 100 in the direction of the second position, so that the battery cell 210 can be evenly dried during gas backfilling, thereby improving the drying effect and efficiency.

[0027] The air inlet portion 120 includes a plurality of air inlet holes 121, and the air inlet holes 121 are suitable for connecting to an air inlet pipe; the air inlet pipe can stably transport dry gas, and the dry gas is preferably hot nitrogen gas, which has high and stable drying efficiency and can stably dry the battery cell 210 after entering the furnace body 100.

[0028] An air intake uniform flow plate 140 is provided on the inner wall of the cavity of the furnace body 100, and the air intake uniform flow plate 140 is connected to the air intake hole 121; by providing the air intake uniform flow plate 140, a plurality of air holes (not shown in the figure) are provided on the air intake uniform flow plate 140 in the width direction covering the battery cell 210, so that the drying gas can be uniformly flowed and passed into the cavity of the furnace body 100, and evenly pass through the surface of the battery cell 210, thereby improving the drying effect.

[0029] The gas outlet portion 130 includes a plurality of gas outlet holes 131, and the gas outlet holes 131 are suitable for connecting to a gas outlet pipe, wherein the gas outlet pipe is connected to a vacuum pump; the gas outlet pipe can stably discharge dry gas, and the vacuum pump can suck the dry gas in the furnace body 100 to speed up the exhaust efficiency.

[0030] The inner wall of the cavity of the furnace body 100 is provided with a gas outlet flow plate 150, and the gas outlet flow plate 150 is connected to the gas outlet hole 131; by providing the gas outlet flow plate 150, a plurality of gas holes (not shown in the figure) are provided on the gas outlet flow plate 150 in the width direction covering the battery cell 210, so that the dry gas can be collected and transported to the gas outlet hole 131, thereby improving the exhaust efficiency.

[0031] A plurality of supporting rollers 160 are rotatably arranged in the cavity of the furnace body 100, and a plurality of rollers 161 are arranged on the supporting rollers 160, wherein the rotation direction of the supporting rollers 160 is adapted to the conveying direction of the battery cell 210; by arranging the supporting rollers 160, when the battery cell 210 is conveyed into the cavity of the furnace body 100, the rotation of the supporting rollers 160 can drive the rollers 161 to rotate, and the rollers 161 can support the bottom surface of the battery cell 210, roll and convey the battery cell 210, protect the surface of the battery cell 210, and avoid damage to the battery cell 210.

[0032] A plurality of vacuum holes 170 are provided through the upper portion of the furnace body 100, and the vacuum holes 170 are suitable for connecting to a vacuum pump. When the furnace body 100 is evacuated, the vacuum pump connected to the vacuum holes 170 works to extract the gas in the furnace body 100. Arranging a plurality of vacuum holes 170 can speed up the evacuation of the furnace body 100.

[0033] A plurality of layers of air uniforming plates 180 are arranged at the bottom of the vacuum hole 170, and the air uniforming plates 180 are connected to the vacuum hole 170; a plurality of air uniforming holes (not shown in the figure) are alternately arranged on different layers of air uniforming plates 180, and the apertures of the air uniforming holes in different layers tend to decrease and the number tends to increase when they are close to the battery cell 210.

[0034] The furnace body 100 is rotatably provided with a valve plate 190 in the first position direction, wherein the valve plate 190 is suitable for covering the valve opening 110 ; by providing the valve plate 190 , the valve plate 190 can be rotated to cover the valve opening 110 , thereby providing a closed space for drying the battery cells 210 .

[0035] A support column 192 is provided in the first position direction of the furnace body 100, and a plurality of hinge blocks 191 are provided on the back side of the valve plate 190, wherein the hinge blocks 191 are rotatably provided on the support column 192; the support column 192 can stably support the rotation of the hinge blocks 191, thereby driving the valve plate 190 to rotate steadily.

[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vacuum drying furnace, characterized in that: include: The furnace body has a valve opening for opening and closing in the first position direction; The furnace body is provided with an air inlet at one end in the second position direction and an air outlet at the other end, and the dry gas is suitable for entering the furnace body through the air inlet and being discharged from the air outlet, wherein The horizontal heights of the air inlet and the air outlet are higher than the height of the battery sheet.

2. A vacuum drying furnace as claimed in claim 1, characterized in that: The air inlet portion includes a plurality of air inlet holes, and the air inlet holes are suitable for connecting to an air inlet pipe.

3. A vacuum drying furnace as claimed in claim 2, characterized in that: An air intake flow equalizer plate is disposed on the inner wall of the cavity of the furnace body, and the air intake flow equalizer plate is communicated with the air intake hole.

4. A vacuum drying furnace as claimed in claim 3, characterized in that: The air outlet portion includes a plurality of air outlet holes, and the air outlet holes are suitable for connecting to the air outlet pipe, wherein The air outlet pipe is communicated with the vacuum pump.

5. A vacuum drying furnace as claimed in claim 4, characterized in that: The inner wall of the cavity of the furnace body is provided with an air outlet uniform flow plate, and the air outlet uniform flow plate is communicated with the air outlet hole.

6. A vacuum drying furnace as claimed in claim 5, characterized in that: A plurality of supporting rollers are rotatably arranged in the cavity of the furnace body, and a plurality of rollers are arranged on the supporting rollers. The rotation direction of the supporting roller is adapted to the conveying direction of the battery sheet.

7. A vacuum drying furnace as claimed in claim 6, characterized in that: A plurality of vacuum holes are provided through the upper part of the furnace body, and the vacuum holes are suitable for connecting to a vacuum pump.

8. A vacuum drying furnace as claimed in claim 7, characterized in that: A plurality of layers of gas-distributing plates are arranged at the bottom of the vacuum hole, and the gas-distributing plates are communicated with the vacuum hole.

9. A vacuum drying furnace as claimed in claim 8, characterized in that: The first position direction of the furnace body is rotated to provide a valve plate, wherein The valve plate is suitable for covering the valve port.

10. A vacuum drying furnace as claimed in claim 9, characterized in that: The furnace body is provided with a support column in the first position direction, and the back side of the valve plate is provided with a plurality of hinge blocks, wherein The hinge block is rotatably arranged on the support column.

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