CN106546072B - Contact heating vacuum drying oven - Google Patents

Contact heating vacuum drying oven Download PDF

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Publication number
CN106546072B
CN106546072B CN201510598560.6A CN201510598560A CN106546072B CN 106546072 B CN106546072 B CN 106546072B CN 201510598560 A CN201510598560 A CN 201510598560A CN 106546072 B CN106546072 B CN 106546072B
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heating
plate
drying device
contact
drying
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CN106546072A (en
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陈磐
余永得
崔帅团
臧世伟
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Shenzhen Poxon Yunda Machinery Technology Co ltd
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Shenzhen Poxon Yunda Machinery Technology Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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Abstract

The invention provides a contact type heating vacuum drying oven which comprises a box body, a vacuum pump and a drying device, wherein the vacuum pump is connected with the drying device, a lithium battery is arranged in the drying device and is heated in a contact manner by the drying device under the action of the vacuum pump, the drying device comprises a plurality of heating plates and locking pieces for clamping the heating plates, and the lithium battery is in contact with the heating plates and is positioned between the two heating plates. According to the invention, the lithium battery is directly clamped by the heating plate specially made by the technology, the lithium battery is directly and quickly contacted and heated to a set temperature, meanwhile, the interior of the box body is pumped to be below 100Pa by using the vacuum pump, so that the moisture in the lithium battery is quickly evaporated in a high-temperature low-pressure environment, and the evaporated moisture is pumped away by using the vacuum pump, thereby achieving the purpose of quick drying. The invention has the advantages of low energy consumption, rapid heating and drying to a set temperature, uniform lithium battery temperature, full drying, high efficiency and the like.

Description

Contact heating vacuum drying oven
Technical Field
The invention relates to the field of vacuum drying oven equipment, in particular to a contact type heating vacuum drying oven.
Background
A traditional vacuum drying oven is drying equipment for drying materials to be dried (lithium batteries) under a negative pressure condition, and the drying mode of the traditional vacuum drying oven is that the wall of a barrel is heated or hot air is heated to heat the materials to be dried, and the materials are vacuumized, so that moisture in the materials to be dried is rapidly evaporated under a high-temperature low-pressure environment, and evaporated moisture is pumped away through a vacuum pump, and the purpose of drying is achieved. However, the traditional process is heated by heat radiation and air conduction, namely the material to be dried is heated by indirect contact, and the heating and drying mode has the defects of high energy consumption, long heating and drying time, nonuniform heating, insufficient drying and the like.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the contact type heating vacuum drying oven which is low in energy consumption, short in heating and drying time, uniform in heating and sufficient in drying.
The invention is realized by the following steps: the utility model provides a contact heating vacuum drying oven for lithium cell is dried, includes box, vacuum pump and drying device, the vacuum pump with drying device is located respectively in the box, vacuum pump connection drying device, the lithium cell is installed in the drying device, the lithium cell by the drying device contact heating under the vacuum pump effect, drying device includes that the multi-disc generates heat the board and is used for pressing from both sides tight each the retaining member of the board that generates heat, lithium cell contact is located two between the board that generates heat.
The drying device is arranged in the support, the drying device is further provided with a fixing frame, a locking piece rod and a locking device, the fixing frame is composed of a bottom plate, side plates and a cross column, the heating plates are connected in series on the cross column, the cross column is further provided with a chain buckle for connecting the heating plates, and the locking piece rod drives the heating plates through the chain buckle.
Furthermore, one of the side plates is provided with a static conductive contact, the support is provided with a spring probe corresponding to the static conductive contact, and the static conductive contact is electrically connected with the spring probe.
Furthermore, the heating plate comprises a heating plate fixing plate and two heating plates, and the heating plate is adhered to the heating plate fixing plate.
Further, the heating plate is made of heating materials such as a silica gel heating plate or a tungsten filament, and the heating plate fixing plate is made of an aluminum plate or a copper plate with high heat conduction efficiency.
Further, the heating plate comprises two silica gel heating plates and a silica gel fixing plate, the silica gel heating plates are respectively fixed on two sides of the silica gel fixing plate, and a temperature measuring line is arranged in the silica gel heating plate.
Furthermore, the silica gel fixed plate is composed of an aluminum plate or other material plates with high heat conduction efficiency.
Furthermore, the drying device is arranged in the box body through a pneumatic mechanism, the pneumatic mechanism comprises a linear slide rail, a front tensioning cylinder, a rear tensioning cylinder, a lifting cylinder and a rotating arm, the front tensioning cylinder and the rear tensioning cylinder are connected with the rotating arm in a driving mode, the other end of the rotating arm is connected with the drying device, and the rotating arm is fixed on a drying box door arranged on the box body.
The invention provides a contact type heating vacuum drying oven which comprises a box body, a vacuum pump and a drying device, wherein the vacuum pump and the drying device are respectively positioned in the box body, the vacuum pump is connected with the drying device, a lithium battery is installed in the drying device, the lithium battery is heated by the drying device in a contact manner under the action of the vacuum pump, the drying device comprises a plurality of heating plates and locking pieces used for clamping the heating plates, and the lithium battery is in contact with and positioned between the two heating plates. According to the invention, the lithium battery is directly clamped by the heating plate specially made by the technology, the lithium battery is directly and quickly contacted and heated to a set temperature, meanwhile, the interior of the box body is pumped to be below 100Pa by using the vacuum pump, so that the moisture in the lithium battery is quickly evaporated in a high-temperature low-pressure environment, and the evaporated moisture is pumped away by using the vacuum pump, thereby achieving the purpose of quick drying. The invention has the advantages of low energy consumption, rapid heating and drying to a set temperature, uniform lithium battery temperature, full drying, high efficiency and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a contact heating vacuum drying oven provided in an embodiment of the present invention;
FIG. 2 is a side view of a contact heating vacuum drying oven provided by an embodiment of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
fig. 4 is a perspective view of the drying device provided by the embodiment of the present invention installed in a rack;
fig. 5 is a perspective view of a drying device provided in an embodiment of the present invention;
fig. 6 is a top view of a drying apparatus provided in an embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at B;
FIG. 8 is a schematic structural diagram of a spring probe according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a static conductive contact according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a heating plate according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described 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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-10, the embodiment of the present invention provides a contact heating vacuum drying oven 1, which is used for drying a lithium battery 2, since an electrolyte of the lithium battery 2 is an organic substance without water molecules, and the presence of water is extremely harmful to the battery, which may cause the battery to generate heat and explode, so that the battery must be vacuum baked before filling and sealing, which is mainly used for removing water, and on the other hand, since the boiling point of water is significantly reduced under negative pressure, the theoretical boiling point at-0.089 Mpa is as low as 45 ℃, because water must be removed under vacuum.
A contact heating vacuum drying oven 1 is used for drying a lithium battery 2 and comprises an oven body 11, a vacuum pump 12 and a drying device 13, wherein the vacuum pump 12 and the drying device 13 are respectively positioned in the oven body 11, the vacuum pump 12 is connected with the drying device 13, the lithium battery 2 is installed in the drying device 13, the lithium battery 2 is heated by the drying device 13 in a contact manner under the action of the vacuum pump 12, the drying device 13 comprises a plurality of heating plates 131 and locking pieces 132 used for clamping the heating plates 131, and the lithium battery 2 is in contact with and positioned between the heating plates 131. According to the invention, the lithium battery 2 is directly clamped by the heating plate 131 specially made by the technology, the lithium battery 2 is directly and rapidly contacted and heated to a set temperature, meanwhile, the inside of the box body 11 is pumped to be below 100Pa by the vacuum pump 12, so that the moisture in the lithium battery 2 is rapidly evaporated in a high-temperature low-pressure environment, and the evaporated moisture is pumped away by the vacuum pump 12, thereby achieving the purpose of rapid drying. The invention has the advantages of low energy consumption, rapid heating and drying to a set temperature, uniform temperature of the lithium battery 2, full drying, high efficiency and the like.
In a specific application, as shown in fig. 4, the contact heating vacuum drying oven 1 further includes a support 14 fixed in the box 11, the drying device 13 is disposed in the support 14, the support 14 is mainly used for positioning the drying device 13, the drying device 13 has three layers in this embodiment, the drying device 13 is respectively pushed into the support 14 from one side of the support 14, and the drying device 13 can be conveniently taken out to replace a dried battery, it should be noted that the drying device 13 may have 1 layer or multiple layers, which is also within the protection scope of the present invention.
Specifically, as shown in fig. 7-9, the drying device 13 further includes a fixing frame 132 composed of a bottom plate 1321, side plates 1322 and cross pillars 1323, a locking piece rod 133 and a locking device 134, where the side plates 1322 have 2 pieces and are respectively disposed at two ends of the bottom plate 1321, the cross pillars 1323 are respectively connected to the two side plates 1322, the locking piece rod 133 is fixed to one of the side plates 1322, the locking device 134 is fixed to one end of the locking piece rod 133 for adjusting the locking piece rod 133, the heating plates 131 are connected in series to the cross pillars 1323, as shown in fig. 6-7 and in combination with fig. 10, two ends of the heating plates 131 are respectively provided with a fixing ring 1311, which can facilitate the heating plates 131 to penetrate from one end of the cross pillars 1323, the cross pillars 1313 are further provided with chain buckles 135 connecting the heating plates 131, and the locking piece rod 133 drives the heating plates 131 through the chain buckles 135 to clamp the lithium batteries 2.
Further, as shown in fig. 8-9 in combination with fig. 4 and 5, one of the side plates 1322 is provided with a static conductive contact 136, a spring probe 137 is provided on the bracket 14 corresponding to the static conductive contact 136, and the static conductive contact 136 is electrically connected to the spring probe 137 to ensure stable contact.
Further, as shown in fig. 10, the heat generating plate 131 includes a heat generating plate fixing plate (not shown) and a heat generating plate (not shown), and the heat generating plate is adhered to the fixing plate. Specifically, the heating sheet is made of heating materials such as a silica gel heating sheet or a tungsten filament, and the heating sheet fixing plate is made of an aluminum plate or other plates with high heat conduction efficiency; the heating plate 131 is further provided with a conductive wire 1313 and a temperature sensing wire 1314, the conductive wire 1313 is used for realizing electric conduction and ensuring electric connection, and the temperature sensing wire 1314 is controlled by a temperature controller and can ensure the temperature uniformity of the heating plate 131, so that the temperature of the heating plate 131 is kept at plus or minus 2 ℃. It should be noted that, in other embodiments, the heating plate 131 may also include two silica gel heating plates and a silica gel fixing plate, the silica gel heating plates are respectively fixed on two sides of the silica gel fixing plate, and one of the silica gel aluminum plates may play a role of protecting a lithium battery, so as to prevent a lithium battery from being damaged due to direct contact between a lithium battery and the heating plate fixing plate; secondly, silica gel aluminum plate can disperse and conduct heat energy. Specifically, the silica gel fixed plate is composed of an aluminum plate or a copper plate with high heat conduction efficiency. A temperature measuring line is arranged in the silica gel heating plate and is controlled by a temperature controller, so that the temperature uniformity of the heating plate 131 can be ensured, and the temperature of the heating plate 131 is kept at plus or minus 2 ℃. It should be noted that, in other embodiments, the heat generating plate 131 may be other heat generating plates such as an electric heat generating sheet or a super heat conducting material, and the like, which are all within the scope of the present invention.
Further, as shown in fig. 2 and fig. 3, the drying device 13 is disposed in the box 11 through a pneumatic mechanism 15, the pneumatic mechanism 15 includes a linear slide rail 151, a front and rear tensioning cylinder 152, a lifting cylinder 153 and a rotating arm 154, the front and rear tensioning cylinder 152 and the lifting cylinder 153 are in driving connection with the rotating arm 154, the other end of the rotating arm 154 is connected with the drying device 13, the rotating arm 154 is fixed on a drying box door 111 disposed on the box 11, the drying device 13 can be driven to move up and down on the linear slide rail through the lifting cylinder 153, and the drying device 13 can be driven to move back and forth on the linear slide rail through the front and rear tensioning cylinder 152; ensures that the drying device 13 can be automatically loaded into and taken out of the box body 11.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.

Claims (6)

1. A contact type heating vacuum drying oven is used for drying lithium batteries and is characterized by comprising a box body, a vacuum pump and a drying device, wherein the vacuum pump and the drying device are respectively positioned in the box body, the vacuum pump is connected with the drying device, the lithium batteries are placed in the drying device, the lithium batteries are heated by the drying device in a contact manner in a vacuum state, the drying device comprises a plurality of heating plates and locking pieces for clamping the heating plates, and the lithium batteries are in contact with and positioned between the two heating plates;
the contact type heating vacuum drying oven also comprises a bracket fixed in the box body, the drying device is arranged on the bracket, the drying device is also provided with a fixing frame consisting of a bottom plate, a side plate and a cross column, a locking sheet rod and a locking device, the heating plates are connected in series on the cross column, the cross column is also provided with a chain buckle for connecting each heating plate, and the locking sheet rod drives the heating plates through the chain buckle;
the drying device is arranged in the box body through a pneumatic mechanism, the pneumatic mechanism comprises a linear slide rail, a front tensioning cylinder, a rear tensioning cylinder, a lifting cylinder and a rotating arm, the front tensioning cylinder and the rear tensioning cylinder are in driving connection with the rotating arm, the other end of the rotating arm is connected with the drying device, and the rotating arm is fixedly arranged on a drying box door on the box body.
2. The contact heating vacuum drying oven of claim 1, wherein: one side plate is provided with a static conductive contact, a spring probe is arranged on the support corresponding to the static conductive contact, and the static conductive contact is electrically connected with the spring probe.
3. The contact heating vacuum drying oven of claim 1, wherein: the heating plate comprises a heating sheet fixing plate and two heating sheets, and the heating sheets are adhered to two surfaces of the heating sheet fixing plate.
4. A contact heating vacuum drying oven as claimed in claim 3, characterized in that: the heating plate is composed of a silica gel heating plate or a tungsten filament, and the heating plate fixing plate is composed of an aluminum plate or a copper plate with high heat conduction efficiency.
5. The contact heating vacuum drying oven of claim 1, wherein: the heating plate comprises two silica gel heating plates and a silica gel fixing plate, the silica gel heating plates are fixed on two sides of the silica gel fixing plate respectively, and temperature measuring lines are arranged in the silica gel heating plates.
6. The contact heating vacuum drying oven of claim 5, wherein: the silica gel fixed plate is composed of an aluminum plate or a copper plate with high heat conduction efficiency.
CN201510598560.6A 2015-09-18 2015-09-18 Contact heating vacuum drying oven Active CN106546072B (en)

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CN106546072B true CN106546072B (en) 2022-10-25

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107917581A (en) * 2017-10-10 2018-04-17 深圳市鹏翔运达机械科技有限公司 Mobile vacuum drying production line
CN110160348B (en) * 2019-06-17 2023-10-13 深圳市时代高科技设备股份有限公司 Tunnel type drying furnace

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JP5466974B2 (en) * 2010-03-11 2014-04-09 株式会社ノリタケカンパニーリミテド Method and apparatus for drying metal foil laminate
CN201849053U (en) * 2010-09-29 2011-06-01 江阴市辉龙电热电器有限公司 Heating device of transfer printing machine
CN102072620B (en) * 2011-01-28 2012-12-05 福建南平南孚电池有限公司 Vacuum baking oven for pole pieces of battery
CN202836083U (en) * 2012-09-17 2013-03-27 李震祺 Device for drying lithium battery pole piece
CN103256792B (en) * 2013-05-27 2015-08-12 奇瑞新能源汽车技术有限公司 A kind of vacuum drying oven of power lithium ion battery pole piece and furnace drying method thereof
JP2015135195A (en) * 2014-01-16 2015-07-27 台湾神戸電池股▲分▼有限公司 Pole plate drying device for secondary battery and pole plate drying method
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CN204513957U (en) * 2014-12-29 2015-07-29 东莞市骏泰精密机械有限公司 Soft package lithium battery vacuum bakeout continuous tunnel furnace
CN204648844U (en) * 2015-05-05 2015-09-16 宁德时代新能源科技有限公司 Secondary cell drying device
CN205119678U (en) * 2015-09-18 2016-03-30 深圳市鹏翔运达机械科技有限公司 Contact heating vacuum drying oven

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