CN110624797A - Heating structure of lithium battery coating machine - Google Patents
Heating structure of lithium battery coating machine Download PDFInfo
- Publication number
- CN110624797A CN110624797A CN201910945983.9A CN201910945983A CN110624797A CN 110624797 A CN110624797 A CN 110624797A CN 201910945983 A CN201910945983 A CN 201910945983A CN 110624797 A CN110624797 A CN 110624797A
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- CN
- China
- Prior art keywords
- pole piece
- lithium battery
- oven
- infrared
- infrared heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The application discloses lithium battery coating machine heating structure, including a heat preservation oven, the pole piece passes through inside the heat preservation oven, the pole piece top is followed pole piece direction of delivery align to grid installs a plurality of infrared heating pipe, infrared heating pipe aims at the pole piece heating, every infrared heating pipe is provided with an infrared radiation thermometer with corresponding installation in one side, the infrared radiation thermometer monitoring corresponds infrared heating pipe aims at the temperature of pole piece position, follow respectively with the below pole piece top pole piece direction of delivery align to grid installs a plurality of wind boxes, the wind box is aimed at the pole piece is dried. The invention uses the infrared heating pipe for auxiliary heating, and can simultaneously dry the inner part and the outer part of the pole piece.
Description
Technical Field
The application relates to a lithium battery manufacturing process, in particular to a heating structure of a lithium battery coating machine.
Background
In the lithium battery coating industry, the coating speed of the whole machine is a very important index. It determines the capacity and efficiency of the entire plant. The coater is a unit with high equipment cost in the whole lithium battery process. It is currently very important to improve the productivity of the coater. The main reason that the production efficiency of the existing coating machine is influenced is that the pole pieces cannot be effectively dried. The main heating mode of the existing oven is a hot air circulation heating mode, and the heat source comprises an electric heating pipe, a steam heat exchanger, a mold temperature controller and the like.
When the coating machine coats the negative pole piece, the solvent of the pole piece is water, and in order to ensure that the water ppm of the pole piece is below 500 when the pole piece is taken out of the drying oven, the speed of the whole machine cannot reach the maximum value. When the pole piece is dried, the surface of the pole piece is firstly dried and then the inside of the pole piece is dried because the pole piece is dried by hot air. At this moment, the internal drying gas comes out from the surface and cracks are easily formed on the surface, so that the quality of the pole piece is influenced, and in order to prevent the pole piece from cracking, the temperature of the front-section oven cannot be too high and only slow drying can be realized.
Disclosure of Invention
The invention aims to provide a heating structure of a lithium battery coating machine, when an oven is dried by hot air circulation, infrared heating is used for drying, and an infrared heating pipe is arranged inside the oven, so that the inside and the outside of a pole piece are simultaneously dried, cracking can not occur under high-speed drying, the overall speed of the coating machine is improved, and the capacity of the coating machine is improved.
In order to achieve the above object, the present invention provides the following technical solutions.
The embodiment of the application discloses lithium battery coating machine heating structure, including a heat preservation oven, the pole piece passes through inside the heat preservation oven, the pole piece top is followed pole piece direction of delivery align to grid installs a plurality of infrared heating pipe, infrared heating pipe aims at the pole piece heating, every infrared heating pipe is provided with an infrared ray thermoscope with corresponding installation in one side, the infrared ray thermoscope monitoring corresponds infrared heating pipe aims at the temperature of pole piece position, the pole piece top is followed respectively with the below pole piece direction of delivery align to grid installs a plurality of wind boxes, the wind box is aimed at the pole piece is dried.
Preferably, in the heating structure of the lithium battery coater, a thermocouple temperature sensor is further arranged inside the heat preservation oven and used for monitoring the temperature inside the heat preservation oven.
Preferably, in the heating structure of the lithium battery coater, the heating structure further includes a hot air system, and the hot air system provides hot dry air for the air box.
Preferably, in the heating structure of the lithium battery coater, a moisture exhaust duct is formed at the top of the heat preservation oven.
Preferably, in the heating structure of the lithium battery coater, a circulating air duct is formed at the bottom of the heat preservation oven.
Compared with the prior art, the invention has the advantages that the infrared heating pipe is used for auxiliary heating, so that the inside and the outside of the pole piece can be simultaneously dried.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view illustrating a heating structure of a lithium battery coater according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail 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 embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, a heating structure of a lithium battery coating machine, including a heat preservation oven 100, pole piece 200 passes through inside heat preservation oven 100, pole piece 200 top is installed a plurality of infrared heating pipe 300 along pole piece 200 direction of delivery align to each other, infrared heating pipe 300 is aimed at pole piece 200 and is heated, every infrared heating pipe 300 corresponds the installation with one side and is provided with an infrared radiation thermometer 400, infrared radiation thermometer 400 monitors the temperature that corresponding infrared heating pipe 300 is aimed at pole piece 200 position, pole piece 200 top and below are respectively along pole piece 200 direction of delivery align to each other and are installed a plurality of wind boxes 500, wind boxes 500 are aimed at pole piece 200 and are dried. A thermocouple temperature sensor 600 is further disposed inside the heat preservation oven 100 for monitoring the temperature inside the heat preservation oven 100. Also included is a hot air system that provides hot dry air for the wind box 500. A moisture exhaust duct 700 is formed at the top of the heat preservation oven 100. The bottom of the heat preservation oven 100 is formed with a circulating air pipe 800.
In the technical scheme, 2 sets of pole piece heating systems, namely a hot air heating system and an infrared heating system, are arranged in the heat-preservation oven, and the two sets work simultaneously. The hot air heating system heats hot air through a heating bag on the back and then dries the pole pieces through blowing by an upper air box and a lower air box; the temperature in the box body is detected and controlled through a thermocouple temperature sensor; the temperature in the whole oven is insulated from the outside by using an oven heat-preservation frame; the wind is exhausted through a top dehumidifying wind pipe; and part of air is recycled through the circulating air pipe at the bottom, and the whole body forms closed-loop flow for heating air, so that the pole pieces are dried.
The infrared heating system directly bakes the surface of the pole piece through the infrared heating pipe, can instantly heat the inside of the pole piece, and only heats the pole piece because the infrared heating does not heat air, so the surface temperature of the position irradiated by the heating pipe is monitored through the infrared thermometer, and the infrared heating system is used for controlling the strength of the infrared heating pipe, thereby controlling the temperature and the drying effect of the pole piece.
The two sets of heating systems work simultaneously to dry the inside and the outside of the pole piece simultaneously, so that the effect of rapidly drying the pole piece is achieved, and the efficiency and the capacity of the whole coating machine are improved. The rapid drying of the pole piece is realized, and the speed of the whole coating machine is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (5)
1. A heating structure of a lithium battery coating machine is characterized by comprising a heat preservation drying oven, pole pieces pass through the heat preservation drying oven, a plurality of infrared heating pipes are uniformly arranged above the pole pieces along the pole piece conveying direction, the infrared heating pipes are aligned with the pole pieces for heating, an infrared thermometer is correspondingly arranged on the same side of each infrared heating pipe, the corresponding infrared heating pipes are aligned with the temperature of the positions of the pole pieces, a plurality of air boxes are respectively arranged above and below the pole pieces along the pole piece conveying direction, and the air boxes are aligned with the pole pieces for drying.
2. The heating structure of the lithium battery coater according to claim 1, wherein a thermocouple temperature sensor is further arranged inside the heat-preservation oven, and is used for monitoring the temperature inside the heat-preservation oven.
3. The heating structure of a lithium battery coater according to claim 1, further comprising a hot air system that provides hot dry air to the wind box.
4. The heating structure of the lithium battery coater of claim 1, wherein a moisture exhaust duct is formed on the top of the heat-insulating oven.
5. The heating structure of the lithium battery coater of claim 1, wherein a circulating air duct is formed at the bottom of the heat-preserving oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910945983.9A CN110624797A (en) | 2019-10-01 | 2019-10-01 | Heating structure of lithium battery coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910945983.9A CN110624797A (en) | 2019-10-01 | 2019-10-01 | Heating structure of lithium battery coating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110624797A true CN110624797A (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910945983.9A Pending CN110624797A (en) | 2019-10-01 | 2019-10-01 | Heating structure of lithium battery coating machine |
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| Country | Link |
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| CN (1) | CN110624797A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318586A (en) * | 2021-12-06 | 2022-11-11 | 江苏深盐达新能源科技有限公司 | Even drying equipment of lithium-ion battery pole piece coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203648813U (en) * | 2013-12-03 | 2014-06-18 | 东莞新能源科技有限公司 | Pole piece drying device |
| CN203935988U (en) * | 2014-06-24 | 2014-11-12 | 东莞市海中机械有限公司 | A kind of lithium battery coating machine drying baker with infrared baking |
| CN204074463U (en) * | 2014-07-31 | 2015-01-07 | 天津力神电池股份有限公司 | A kind of lithium rechargeable battery coating device |
| CN104756599A (en) * | 2012-11-07 | 2015-07-01 | 日本碍子株式会社 | Infrared heating device and drying furnace |
| CN107138365A (en) * | 2017-06-26 | 2017-09-08 | 江苏大族展宇新能源科技有限公司 | Coating machine depth drying baker |
| CN210675840U (en) * | 2019-10-01 | 2020-06-05 | 江苏大族展宇新能源科技有限公司 | Heating structure of lithium battery coating machine |
-
2019
- 2019-10-01 CN CN201910945983.9A patent/CN110624797A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756599A (en) * | 2012-11-07 | 2015-07-01 | 日本碍子株式会社 | Infrared heating device and drying furnace |
| CN203648813U (en) * | 2013-12-03 | 2014-06-18 | 东莞新能源科技有限公司 | Pole piece drying device |
| CN203935988U (en) * | 2014-06-24 | 2014-11-12 | 东莞市海中机械有限公司 | A kind of lithium battery coating machine drying baker with infrared baking |
| CN204074463U (en) * | 2014-07-31 | 2015-01-07 | 天津力神电池股份有限公司 | A kind of lithium rechargeable battery coating device |
| CN107138365A (en) * | 2017-06-26 | 2017-09-08 | 江苏大族展宇新能源科技有限公司 | Coating machine depth drying baker |
| CN210675840U (en) * | 2019-10-01 | 2020-06-05 | 江苏大族展宇新能源科技有限公司 | Heating structure of lithium battery coating machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318586A (en) * | 2021-12-06 | 2022-11-11 | 江苏深盐达新能源科技有限公司 | Even drying equipment of lithium-ion battery pole piece coating |
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