CN111043835A - Drying equipment for lithium battery production - Google Patents
Drying equipment for lithium battery production Download PDFInfo
- Publication number
- CN111043835A CN111043835A CN201911337961.0A CN201911337961A CN111043835A CN 111043835 A CN111043835 A CN 111043835A CN 201911337961 A CN201911337961 A CN 201911337961A CN 111043835 A CN111043835 A CN 111043835A
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- China
- Prior art keywords
- wall
- fixed
- lithium battery
- box
- box body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/042—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying articles or discrete batches of material in a continuous or semi-continuous operation, e.g. with locks or other air tight arrangements for charging/discharging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/009—Alarm systems; Safety sytems, e.g. preventing fire and explosions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/18—Chambers, containers, receptacles of simple construction mainly open, e.g. dish, tray, pan, rack
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
Abstract
The invention belongs to the technical field of low-temperature resin preparation, and particularly relates to a drying device for lithium battery production, which aims at solving the problems that a lithium battery is easily oxidized by air when the conventional lithium battery drying device is used for drying, and the battery is damaged due to liquid leakage in the battery and is not uniformly heated. The gas guide plate can uniformly guide hot nitrogen to the surface of the lithium battery, so that the lithium battery can be uniformly heated, and the drying effect is good.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to drying equipment for lithium battery production.
Background
A "lithium battery" is a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a negative electrode material. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. With the development of science and technology, lithium batteries have become the mainstream nowadays.
The existing drying equipment for lithium battery production has the following defects: need dry to the lithium cell in battery production process, current drying equipment lithium cell is easy by air oxidation at the stoving in-process, and the inside weeping of battery leads to the battery to damage to it is inhomogeneous to be heated, and the stoving effect is relatively poor.
Disclosure of Invention
The invention provides a drying device for lithium battery production, which is based on the technical problems that a lithium battery is easily oxidized by air when the conventional lithium battery drying device is used for drying, the battery is damaged due to leakage inside the battery, and the heating is uneven.
The invention provides drying equipment for lithium battery production, which comprises a workbench, wherein a box body is fixed on the outer wall of the top of the workbench through screws, the top of the outer wall of one side of the box body is provided with an inserting hole, the inner wall of the inserting hole is inserted with a nitrogen input pipe, the outer wall of the nitrogen input pipe is clamped with a first valve through a clamp, the outer wall of one side of the box body is fixed with a vacuum pump through screws, the output end of the vacuum pump is sleeved with an exhaust pipe, the outer wall of the exhaust pipe is clamped with a second valve through the clamp, the input end of the vacuum pump is communicated with the interior of the box body, the outer wall of one side of the box body is fixed with a fixing plate through screws, the outer wall of the top of the fixing plate is fixed with a heating box through screws, the outer wall of the bottom of the heating box is provided with a mounting hole, the inner, and a gas guide plate is inserted in the inner wall of one end of the gas pipe far away from the heating box.
Preferably, the top inner wall of box has weight sensor through the fix with screw, and weight sensor's bottom outer wall welding has the mounting panel, and the spout has all been opened to the both sides of mounting panel bottom outer wall, and the inner wall of spout has the slide rail through the fix with screw, and the inner wall sliding connection of slide rail has the stoving case, and the outer wall of stoving case is opened has the ventilation hole that the equidistance distributes.
Preferably, the outer walls of the two sides of the drying box are both fixed with a first handle through screws, the inner wall of the top of the drying box is connected with a rotating rod through a bearing, and the outer wall of the rotating rod is fixed with placing plates which are distributed equidistantly through screws.
Preferably, a weight display controller is fixed on the outer wall of one side of the workbench through screws, heating resistors which are distributed at equal intervals are fixed on the inner wall of the heating box through screws, and a suction pump is fixed on the outer wall of the top of the heating box through screws.
Preferably, the output end of the getter pump is sleeved with an air inlet pipe, one end of the air inlet pipe, which is far away from the getter pump, is communicated with the inside of the box body, and the input end of the getter pump is communicated with the inside of the heating box.
Preferably, it is as described.
Preferably, the edge of one side outer wall of the box body is connected with a box door through a hinge, the second handle is fixed on one side outer wall of the box door through a screw, and the sealing gasket is fixed on one side outer wall of the box body through a screw.
Preferably, the outer wall of the top of the box body is fixed with a warning lamp through a screw, and the warning lamp is connected with the weight display controller through a lead.
The beneficial effects of the invention are as follows:
1. according to the invention, the vacuum pump, the nitrogen input pipe and the gas guide plate are arranged, air in the box body is completely sucked out through the vacuum pump, and then nitrogen is input into the box body through the nitrogen input pipe, so that the battery can be dried in a vacuum state, the battery is effectively prevented from being oxidized by air, and the gas guide plate can uniformly guide hot nitrogen to the surface of the lithium battery, so that the lithium battery can be uniformly heated, and the drying effect is better.
2. According to the invention, the air suction pump and the heating box are arranged, nitrogen in the box body is sucked into the heating box through the air suction pump for heating, and then the heated nitrogen is input into the box body through the gas guide plate for drying, so that the nitrogen can be recycled, resources are saved, and the operation is simple.
3. According to the invention, the weight sensor and the weight display controller are arranged, so that the weight data displayed on the weight display controller can be recorded after the lithium battery is placed on the placing plate, the weight data can be gradually reduced along with the evaporation of water in the drying process, and the drying work is completed when the data is not changed any more for a period of time, so that the drying degree of the lithium battery can be judged according to the weight data of the lithium battery.
4. According to the invention, the warning lamp is arranged, and the weight display controller can control the warning lamp to be turned on after the data are not changed for a period of time, so that people can be reminded that the drying work is finished, and the automation degree is higher.
Drawings
Fig. 1 is a schematic view of an overall structure of a drying apparatus for lithium battery production according to embodiment 1 of the present invention;
fig. 2 is a three-dimensional structure diagram of a drying device for lithium battery production according to the present invention;
fig. 3 is a schematic view of an overall structure of a drying apparatus for lithium battery production according to embodiment 2 of the present invention.
In the figure: the device comprises a nitrogen input pipe 1, a first handle 2, a drying box 3, a vacuum pump 4, a weight display controller 5, a workbench 6, a gas guide plate 7, a placing plate 8, a heating box 9, a heating resistor 10, an air suction pump 11, a mounting plate 12, a weight sensor 13, a box door 14, a sealing gasket 15, a box body 16 and a warning lamp 17.
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.
Example 1:
referring to fig. 1-2, a drying device for lithium battery production comprises a workbench 6, a box 16 is fixed on the outer wall of the top of the workbench 6 through screws, a jack is arranged on the top of the outer wall of one side of the box 16, a nitrogen input pipe 1 is inserted into the inner wall of the jack, a first valve is clamped on the outer wall of the nitrogen input pipe 1 through a clamp, a vacuum pump 4 is fixed on the outer wall of one side of the box 16 through screws, an exhaust pipe is sleeved on the output end of the vacuum pump 4, a second valve is clamped on the outer wall of the exhaust pipe through a clamp, the input end of the vacuum pump 4 is communicated with the inside of the box 16, a fixing plate is fixed on the outer wall of one side of the box 16 through screws, a heating box 9 is fixed on the outer wall of the top of the fixing plate through screws, a mounting hole is arranged on the outer wall of the bottom of the heating, and the inner wall of one end of the gas pipe far away from the heating box 9 is inserted with a gas guide plate 7.
According to the invention, the weight sensor 13 is fixed on the inner wall of the top of the box body 16 through a screw, the mounting plate 12 is welded on the outer wall of the bottom of the weight sensor 13, sliding grooves are formed in two sides of the outer wall of the bottom of the mounting plate 12, sliding rails are fixed on the inner wall of the sliding grooves through screws, the inner wall of each sliding rail is connected with the drying box 3 in a sliding mode, and ventilation holes distributed at equal intervals are formed in the outer wall of the drying box.
According to the invention, the first handles 2 are fixed on the outer walls of the two sides of the drying box 3 through screws, the inner wall of the top of the drying box 3 is connected with the rotating rod through a bearing, and the outer walls of the rotating rod are fixed with the placing plates 8 which are distributed equidistantly through screws.
In the invention, a weight display controller 5 is fixed on the outer wall of one side of a workbench 6 through a screw, heating resistors 10 which are distributed at equal intervals are fixed on the inner wall of a heating box 9 through screws, and a suction pump 11 is fixed on the outer wall of the top of the heating box 9 through screws.
In the invention, the output end of the air suction pump 11 is sleeved with an air inlet pipe, one end of the air inlet pipe, which is far away from the air suction pump 11, is communicated with the interior of the box body 16, and the input end of the air suction pump 11 is communicated with the interior of the heating box 9.
According to the invention, the edge of one side outer wall of the box body 16 is connected with the box door 14 through a hinge, one side outer wall of the box door 14 is fixed with the second handle through a screw, and one side outer wall of the box body 16 is fixed with the sealing gasket 15 through a screw.
When the lithium battery drying box is used, the second handle is held to pull open the box door 14, the lithium battery is placed on the placing plate 8, the box door 14 is closed, the sealing gasket 15 on the box door 14 can prevent air from entering the box body 16, the second valve and the vacuum pump 4 are opened to suck out all air in the box body 16, then the first valve is opened to input nitrogen into the box body 16 through the nitrogen input pipe 1, the suction pump 11 sucks the nitrogen in the box body 16 into the heating box 9 for heating, then the heated nitrogen is input into the box body 16 through the gas guide plate 7 for drying, so that the nitrogen can be recycled, the lithium battery is dried in a vacuum state, the air oxidation battery can be effectively prevented, weight data displayed on the weight display controller 5 can be recorded after the lithium battery is placed on the placing plate 8, the weight data can be gradually reduced along with the evaporation of moisture in the drying process, when the data is not changed any more for a period of time, the drying work is completed, so that the drying degree of the lithium battery can be judged according to the weight data of the lithium battery.
Example 2:
referring to fig. 3, the drying apparatus for lithium battery production, in this embodiment, compared with embodiment 1, further includes a warning light 17 fixed to an outer wall of a top of the box 16 through a screw, and the warning light 17 is connected to the weight display controller 5 through a wire.
During the use, set up to control warning light 17 through weight display controller 5 and open after data no longer change a period to can remind people that stoving work has been accomplished, degree of automation is higher.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The drying equipment for the lithium battery production comprises a workbench (6) and is characterized in that a box body (16) is fixed on the outer wall of the top of the workbench (6) through screws, an inserting hole is formed in the top of the outer wall of one side of the box body (16), a nitrogen input pipe (1) is inserted into the inner wall of the inserting hole, a first valve is clamped on the outer wall of the nitrogen input pipe (1) through a clamp, a vacuum pump (4) is fixed on the outer wall of one side of the box body (16) through screws, an exhaust pipe is sleeved at the output end of the vacuum pump (4), a second valve is clamped on the outer wall of the exhaust pipe through a clamp, the input end of the vacuum pump (4) is communicated with the interior of the box body (16), a fixing plate is fixed on the outer wall of one side of the box body (16) through screws, a heating box (9) is fixed on the outer wall of the top of the fixing plate, the inner wall of the mounting hole is spliced with an air pipe, one end of the air pipe, which is far away from the heating box (9), is communicated with the inside of the box body (16), and the inner wall of one end of the air pipe, which is far away from the heating box (9), is spliced with a gas guide plate (7).
2. The drying equipment for the lithium battery production as claimed in claim 1, wherein the top inner wall of the box body (16) is fixed with a weight sensor (13) through screws, the bottom outer wall of the weight sensor (13) is welded with a mounting plate (12), sliding grooves are formed in two sides of the bottom outer wall of the mounting plate (12), sliding rails are fixed on the inner walls of the sliding grooves through screws, the inner walls of the sliding rails are connected with the drying box (3) in a sliding mode, and ventilation holes distributed equidistantly are formed in the outer wall of the drying box (3).
3. The drying equipment for the lithium battery production as claimed in claim 2, wherein the outer walls of the two sides of the drying box (3) are both fixed with a first handle (2) through screws, the inner wall of the top of the drying box (3) is connected with a rotating rod through a bearing, and the outer wall of the rotating rod is fixed with placing plates (8) which are distributed equidistantly through screws.
4. The drying equipment for the lithium battery production as claimed in claim 1, wherein a weight display controller (5) is fixed on the outer wall of one side of the workbench (6) through screws, heating resistors (10) are fixed on the inner wall of the heating box (9) at equal intervals through screws, and a suction pump (11) is fixed on the outer wall of the top of the heating box (9) through screws.
5. The drying equipment for the lithium battery production as claimed in claim 4, wherein an air inlet pipe is sleeved at the output end of the air suction pump (11), one end of the air inlet pipe, which is far away from the air suction pump (11), is communicated with the inside of the box body (16), and the input end of the air suction pump (11) is communicated with the inside of the heating box (9).
6. The drying equipment for the lithium battery production as claimed in claim 1, wherein a door (14) is connected to an edge of one outer wall of the box body (16) through a hinge, a second handle is fixed to one outer wall of the door (14) through a screw, and a sealing gasket (15) is fixed to one outer wall of the box body (16) through a screw.
7. The drying equipment for the lithium battery production as claimed in claim 1, wherein a warning light (17) is fixed on the outer wall of the top of the box body (16) through a screw, and the warning light (17) is connected with the weight display controller (5) through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337961.0A CN111043835A (en) | 2019-12-23 | 2019-12-23 | Drying equipment for lithium battery production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337961.0A CN111043835A (en) | 2019-12-23 | 2019-12-23 | Drying equipment for lithium battery production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111043835A true CN111043835A (en) | 2020-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911337961.0A Pending CN111043835A (en) | 2019-12-23 | 2019-12-23 | Drying equipment for lithium battery production |
Country Status (1)
| Country | Link |
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| CN (1) | CN111043835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623959A (en) * | 2020-05-06 | 2021-11-09 | 无锡鑫明自控阀业有限公司 | Pneumatic flange end carbon steel drying device for ball valve |
| CN113834292A (en) * | 2021-10-14 | 2021-12-24 | 枣阳市格芯电子科技有限公司 | Vacuum oven is used in lithium cell production that pure nitrogen gas thermal efficiency is high fast heaies up |
| CN114941930A (en) * | 2022-06-14 | 2022-08-26 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Microwave baking device for lithium battery electrode material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406068Y (en) * | 2000-01-25 | 2000-11-15 | 山东工业大学 | Intensified heat-exchanging device |
| CN105509427A (en) * | 2015-12-14 | 2016-04-20 | 郴州市芝草农业科技开发有限公司 | Drying room for deep processing of agricultural and sideline products |
| CN206459444U (en) * | 2016-12-23 | 2017-09-01 | 新疆医科大学第四附属医院 | A kind of processing of crude drugs fast-drying device |
| CN207176033U (en) * | 2017-08-24 | 2018-04-03 | 苏州鼎佳炉窑科技有限公司 | A kind of guiding device suitable for the heating of plate ingot |
| CN207702865U (en) * | 2018-01-02 | 2018-08-07 | 沭阳万和香食品有限公司 | A kind of energy-saving efficient dried bean curd automatic drier |
| CN207815836U (en) * | 2018-01-30 | 2018-09-04 | 新疆天宏基硅业有限公司 | Lithium battery drying device |
| JP2019158251A (en) * | 2018-03-14 | 2019-09-19 | 日本碍子株式会社 | Dryer and method of drying granular particles using same |
-
2019
- 2019-12-23 CN CN201911337961.0A patent/CN111043835A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406068Y (en) * | 2000-01-25 | 2000-11-15 | 山东工业大学 | Intensified heat-exchanging device |
| CN105509427A (en) * | 2015-12-14 | 2016-04-20 | 郴州市芝草农业科技开发有限公司 | Drying room for deep processing of agricultural and sideline products |
| CN206459444U (en) * | 2016-12-23 | 2017-09-01 | 新疆医科大学第四附属医院 | A kind of processing of crude drugs fast-drying device |
| CN207176033U (en) * | 2017-08-24 | 2018-04-03 | 苏州鼎佳炉窑科技有限公司 | A kind of guiding device suitable for the heating of plate ingot |
| CN207702865U (en) * | 2018-01-02 | 2018-08-07 | 沭阳万和香食品有限公司 | A kind of energy-saving efficient dried bean curd automatic drier |
| CN207815836U (en) * | 2018-01-30 | 2018-09-04 | 新疆天宏基硅业有限公司 | Lithium battery drying device |
| JP2019158251A (en) * | 2018-03-14 | 2019-09-19 | 日本碍子株式会社 | Dryer and method of drying granular particles using same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623959A (en) * | 2020-05-06 | 2021-11-09 | 无锡鑫明自控阀业有限公司 | Pneumatic flange end carbon steel drying device for ball valve |
| CN113834292A (en) * | 2021-10-14 | 2021-12-24 | 枣阳市格芯电子科技有限公司 | Vacuum oven is used in lithium cell production that pure nitrogen gas thermal efficiency is high fast heaies up |
| CN113834292B (en) * | 2021-10-14 | 2024-03-26 | 枣阳市格芯电子科技有限公司 | Vacuum oven for lithium battery production with rapid temperature rise and high heat efficiency of pure nitrogen |
| CN114941930A (en) * | 2022-06-14 | 2022-08-26 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Microwave baking device for lithium battery electrode material |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200421 |
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| RJ01 | Rejection of invention patent application after publication |