CN106895674A - A kind of battery material production vacuum drying chamber - Google Patents
A kind of battery material production vacuum drying chamber Download PDFInfo
- Publication number
- CN106895674A CN106895674A CN201710122638.6A CN201710122638A CN106895674A CN 106895674 A CN106895674 A CN 106895674A CN 201710122638 A CN201710122638 A CN 201710122638A CN 106895674 A CN106895674 A CN 106895674A
- Authority
- CN
- China
- Prior art keywords
- casing
- vacuum drying
- drying chamber
- screen pack
- material production
- Prior art date
- 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.)
- Pending
Links
Classifications
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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
- F26B9/066—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack
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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
- F26B23/06—Heating arrangements using electric heating resistance heating
-
- 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
- F26B25/001—Handling, e.g. loading or unloading arrangements
-
- 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
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides a kind of battery material production vacuum drying chamber, including casing, pectinid device and pressure relief device；Lower rack and upper rack are provided with the casing, lower rack is welded on the bottom of casing, and upper rack is welded on the middle part of casing, and the left part of casing is connected through the hinge and has cabinet door；Tracheae is connected with the pectinid device, vavuum pump is connected with tracheae, vavuum pump is placed on outside casing, pectinid device is made up of funnel, the first screen pack, flabellum, rotating shaft, support, shaft coupling, motor and fixed mount；The support is made up of retainer plate, pole, fixed plate and bearing；The pressure relief device is made up of relief tube, control valve and the second screen pack；The relief tube is connected to the right part of casing, and relief tube is provided with control valve, the second screen pack is provided with the relief tube on the right side of control valve；The present invention can prevent material at high temperature with air in gas reaction, and then change material chemical property；The drying of material can be accelerated.
Description
Technical field
The present invention relates to a kind of vacuum drying chamber, specifically a kind of battery material production vacuum drying chamber.
Background technology
With the development of automobile industry, the exhaustion of the non-renewable fossil fuel such as oil, natural gas is of increasing concern, empty
Gas pollutes and room temperature effect also turns into global problem.To solve energy problem, low-carbon environment-friendly is realized, based on current energy skill
The development level of art, electric vehicle engineering is increasingly becoming the emphasis direction of global economic development, the U.S., Japan, Germany, China etc.
The national fuel vehicle of limitation in succession is used, and greatly develops electric motor car.As the core component of electric automobile --- electrokinetic cell is also met
Big good opportunity to develop is carried out.Electrokinetic cell refers to the battery for being applied to electric motor car, including lithium ion battery, lead-acid battery, combustion
Material battery etc., wherein, lithium ion battery is because with specific energy is high, specific power is big, self discharge is few, long service life and security are good
The advantages of, it has also become the emphasis of current various countries' development.
Lithium ion battery is a kind of secondary cell（Rechargeable battery）, it relies primarily on lithium ion and moves between a positive electrode and a negative electrode
Move and carry out work.In charge and discharge process, Li+ comes and goes embedded and deintercalation between two electrodes：During charging, Li+ is de- from positive pole
It is embedding, negative pole is embedded in by electrolyte, negative pole is in rich lithium state；It is then opposite during electric discharge.In cell production process, can usually need
Some dusty materials are dried；If using traditional drying device, at high operating temperatures, these materials hold very much
It is perishable, it will to reduce the chemical property of material script, and then influence the use of material；And this writes powdered material and exists
Easily it is scattered when drying, the loss of material can be caused, is not easy to the collection of material.
The content of the invention
It is an object of the invention to provide a kind of battery material production vacuum drying chamber, with solving above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical scheme：
A kind of battery material production vacuum drying chamber, including casing, pectinid device and pressure relief device；It is provided with the casing
Lower rack and upper rack, lower rack are welded on the bottom of casing, and upper rack is welded on the middle part of casing, a left side for casing
Portion is connected through the hinge cabinet door, and the right part of casing is provided with control panel；The pectinid device is arranged on box house, fan
Tracheae is connected with wind apparatus, vavuum pump is connected with tracheae, vavuum pump is placed on outside casing, pectinid device is by funnel,
One screen pack, flabellum, rotating shaft, support, shaft coupling, motor and fixed mount composition；The funnel is welded on box house, in funnel
First screen pack is installed, flabellum is provided with the funnel on the right side of the first screen pack, flabellum is arranged in rotating shaft, and rotating shaft is by branch
Frame is arranged on funnel middle part, and the right-hand member of rotating shaft is connected on the main shaft of motor by shaft coupling, and motor is fixed on by fixed mount
Pipe；The support is made up of retainer plate, pole, fixed plate and bearing；The retainer plate is welded in filler neck, fixed
Circle middle part is welded with pole, and pole has three, the end of pole is both connected to the outside of fixed plate, and fixed plate is shaped as circle
Shape, the center of fixed plate is provided with bearing, and bearing middle part is provided with rotating shaft；The pressure relief device is connected to the right part of casing, pressure release
Device is made up of relief tube, control valve and the second screen pack；The relief tube is connected to the right part of casing, and relief tube is provided with control
Valve processed, the second screen pack is provided with the relief tube on the right side of control valve.
As further scheme of the invention：The bottom of the lower rack is provided with first heater, the first heating
Device is electric heating tube, and first heater has two, is installed in the bottom of lower rack.
As further scheme of the invention：The bottom of the upper rack is provided with secondary heating mechanism, the second heating
Device is electric heating tube, and secondary heating mechanism has two, is installed in the bottom of rack.
As further scheme of the invention：Pressure is installed on cabinet wall between the lower rack and upper rack
Force checking device.
As further scheme of the invention：Temperature detection dress is installed on the cabinet wall on the upper rack top
Put.
As further scheme of the invention：Edge on the inside of the cabinet door is provided with sealing ring, cabinet door
Outside is provided with handle.
Compared with prior art, the beneficial effects of the invention are as follows：
Simple structure of the present invention, it is multiple functional, it is reasonable in design, it is easy to use；In the battery material production vacuum drying chamber
, then can be dried the evacuating air in casing to material by vavuum pump；Can prevent material at high temperature with air in gas
Precursor reactant, and then change the chemical property of material；Pectinid device can accelerate the operating rate of vavuum pump, while can improve in casing
The speed of temperature propagation, and then accelerate the drying of material；First screen pack and the second screen pack can be to the materials in turnover casing
Filtered, prevented the material of the impurity pollution casing and its inside in air；Sealing ring on cabinet door is avoided that air stream
It is logical, while being avoided that scattering and disappearing for heat；Pressure relief device, to gas is passed through in casing, can increase air pressure after the completion of drying, be easy to
The unlatching of cabinet door.
Brief description of the drawings
Fig. 1 is the structural representation of battery material production vacuum drying chamber.
Fig. 2 is the structural representation of battery material production vacuum drying chamber middle fan wind apparatus.
Fig. 3 is the structural representation of battery material production vacuum drying chamber medium-height trestle.
Fig. 4 is the structural representation of pressure relief device in battery material production vacuum drying chamber.
In figure：1- cabinet doors, rack under 2-, 3- first heaters, 4- sealing rings, 5- handles, 6- pressure detectings dress
Put, 7- pectinid devices, the upper racks of 8-, 9- secondary heating mechanisms, 10- temperature-detecting devices, 11- casings, 12- pressure relief devices,
13- control panels, 14- tracheaes, 15- vavuum pumps, 16- funnels, the screen packs of 17- first, 18- flabellums, 19- rotating shafts, 20- supports,
21- shaft couplings, 22- motors, 23- fixed mounts, 24- retainer plates, 25- poles, 26- fixed plates, 27- bearings, 28- relief tubes, 29-
Control valve, the screen packs of 30- second.
Specific embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Refer to Fig. 1-4, a kind of battery material production vacuum drying chamber, including casing 11, pectinid device 7 and pressure release dress
Put 12；Lower rack 2 and upper rack 8 are provided with the casing 11, lower rack 2 is welded on the bottom of casing 11, above puts
Put the middle part that frame 8 is welded on casing 11, the left part of casing 11 right part for having cabinet door 1, casing 11 that is connected through the hinge is provided with
Control panel 13, the operation for controlling casing 11；The bottom of the lower rack 2 is provided with first heater 3, and first adds
Thermal 3 is electric heating tube, and first heater 3 has two, is installed in the bottom of lower rack 2；The upper rack 8
Bottom secondary heating mechanism 9 is installed, secondary heating mechanism 9 is electric heating tube, and secondary heating mechanism 9 has two, pacifies
Mounted in the bottom of upper rack 8；Pressure detecting is installed on the inwall of casing 11 between the lower rack 2 and upper rack 8
Device 6, pressure-detecting device 6 can detect the pressure change in casing 11；Pacify on the inwall of casing 11 on the top of upper rack 8
Equipped with temperature-detecting device 10, temperature-detecting device 10 can detect the temperature change in casing 11；The side of the inner side of the cabinet door 1
Sealing ring 4 is installed, the outside of cabinet door 1 is provided with handle 5 at edge, sealing ring 4 can prevent air from cabinet door 1 and casing 11 it
Between gap in enter into casing 11, handle 5 is easy to the switch of cabinet door 1；The pectinid device 7 is arranged in casing 11
Portion, is connected with tracheae 14 on pectinid device 7, vavuum pump 15 is connected with tracheae 14, and vavuum pump 15 is placed on outside casing 11, fan
Wind apparatus 7 are by 23 groups of funnel 16, the first screen pack 17, flabellum 18, rotating shaft 19, support 20, shaft coupling 21, motor 22 and fixed mount
Into；The funnel 16 is welded on inside casing 11, and the first screen pack 17, the leakage on the right side of the first screen pack 17 are provided with funnel 16
Flabellum 18 is provided with bucket 16, flabellum 18 is arranged in rotating shaft 19, rotating shaft 19 is arranged on the middle part of funnel 16, rotating shaft by support 20
19 right-hand member is connected on the main shaft of motor 22 by shaft coupling 21, and motor 22 is fixed on inside tracheae 14 by fixed mount 23,
Motor 22 is used to drive flabellum 18 to rotate；The support 20 is made up of retainer plate 24, pole 25, fixed plate 26 and bearing 27, uses
In installation rotating shaft 19；The retainer plate 24 is welded in the neck of funnel 16, and the middle part of retainer plate 24 is welded with pole 25, and pole 25 has
Three, the end of pole 25 is both connected to the outside of fixed plate 26, and fixed plate 26 is shaped as circle, and the center of fixed plate 26 sets
There is bearing 27, the middle part of bearing 27 is provided with rotating shaft 19；The pressure relief device 12 is connected to the right part of casing 11, pressure relief device 12 by
Relief tube 28, the control screen pack 30 of valve 29 and second are constituted, for controlling the pressure change in casing 11；The relief tube 28 connects
The right part of casing 11 is connected on, relief tube 28 is provided with control valve 29, the second filtering is provided with the relief tube 28 on the right side of control valve 29
Net 30, the second screen pack 30 can filter the gas into casing 11, it is to avoid impurity pollution casing 11.
Operation principle of the invention is：When using, material to be dried is placed on upper rack 8 or lower rack 2,
Close cabinet door 1；Start vavuum pump 15 and pectinid device 7, vavuum pump 15 is used to discharge the air in casing 11, pectinid device 7
The speed of air discharge can be improved；After air in casing 11 is drained only, first heater 3 and secondary heating mechanism 9 work,
Material in casing 11 is dried, while the temperature in temperature-detecting device 10 and the detection casing 11 of pressure-detecting device 6
And pressure change；After the completion of drying, material naturally cools to normal temperature state in casing 11, then controls valve 29 to open, and increases
Air pressure in casing 11, opens cabinet door 1, takes out dried material.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can also be on the premise of this patent objective not be departed from
Make a variety of changes.
Claims (6)
1. a kind of battery material production vacuum drying chamber, including casing（11）, pectinid device（7）And pressure relief device（12）；Its
It is characterised by, the casing（11）Inside it is provided with lower rack（2）With upper rack（8）, lower rack（2）It is welded on casing
（11）Bottom, upper rack（8）It is welded on casing（11）Middle part, casing（11）Left part be connected through the hinge and have cabinet door
（1）, casing（11）Right part be provided with control panel（13）；The pectinid device（7）Installed in casing（11）Inside, pectinid dress
Put（7）On be connected with tracheae（14）, tracheae（14）On be connected with vavuum pump（15）, vavuum pump（15）It is placed on casing（11）Outward
Portion, pectinid device（7）By funnel（16）, the first screen pack（17）, flabellum（18）, rotating shaft（19）, support（20）, shaft coupling
（21）, motor（22）And fixed mount（23）Composition；The funnel（16）It is welded on casing（11）Inside, funnel（16）Inside it is provided with
First screen pack（17）, the first screen pack（17）The funnel on right side（16）Inside it is provided with flabellum（18）, flabellum（18）Installed in turn
Axle（19）On, rotating shaft（19）By support（20）Installed in funnel（16）Middle part, rotating shaft（19）Right-hand member pass through shaft coupling（21）
It is connected to motor（22）Main shaft on, motor（22）By fixed mount（23）It is fixed on tracheae（14）It is internal；The support（20）
By retainer plate（24）, pole（25）, fixed plate（26）And bearing（27）Composition；The retainer plate（24）It is welded on funnel（16）Neck
It is interior, retainer plate（24）Middle part is welded with pole（25）, pole（25）Have three, pole（25）End be both connected to fixed plate
（26）Outside, fixed plate（26）Be shaped as circle, fixed plate（26）Center be provided with bearing（27）, bearing（27）Pacify at middle part
Equipped with rotating shaft（19）；The pressure relief device（12）It is connected to casing（11）Right part, pressure relief device（12）By relief tube（28）, control
Valve processed（29）With the second screen pack（30）Composition；The relief tube（28）It is connected to casing（11）Right part, relief tube（28）On
It is provided with control valve（29）, control valve（29）The relief tube on right side（28）Inside it is provided with the second screen pack（30）.
2. a kind of battery material production vacuum drying chamber according to claim 1, it is characterised in that the lower rack
（2）Bottom first heater is installed（3）, first heater（3）It is electric heating tube, first heater（3）It is total
Two, it is installed in lower rack（2）Bottom.
3. a kind of battery material production vacuum drying chamber according to claim 1, it is characterised in that the upper rack
（8）Bottom secondary heating mechanism is installed（9）, secondary heating mechanism（9）It is electric heating tube, secondary heating mechanism（9）It is total
Two, it is installed in rack（8）Bottom.
4. a kind of battery material production vacuum drying chamber according to claim 1, it is characterised in that the lower rack
（2）With upper rack（8）Between casing（11）Pressure-detecting device is installed on inwall（6）.
5. a kind of battery material production vacuum drying chamber according to claim 1, it is characterised in that the upper rack
（8）The casing on top（11）Temperature-detecting device is installed on inwall（10）.
6. a kind of battery material production vacuum drying chamber according to claim 1, it is characterised in that the cabinet door
（1）The edge of inner side is provided with sealing ring（4）, cabinet door（1）Outside be provided with handle（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710122638.6A CN106895674A (en) | 2017-03-03 | 2017-03-03 | A kind of battery material production vacuum drying chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710122638.6A CN106895674A (en) | 2017-03-03 | 2017-03-03 | A kind of battery material production vacuum drying chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106895674A true CN106895674A (en) | 2017-06-27 |
Family
ID=59185450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710122638.6A Pending CN106895674A (en) | 2017-03-03 | 2017-03-03 | A kind of battery material production vacuum drying chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106895674A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504771A (en) * | 2017-08-04 | 2017-12-22 | 安徽英昊达精密设备有限公司 | A kind of gear measuring center part drying box to be checked |
| CN108826847A (en) * | 2018-06-29 | 2018-11-16 | 苏州市金翔钛设备有限公司 | Powder material baking oven |
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| JP2006187694A (en) * | 2004-12-28 | 2006-07-20 | Nobuaki Debari | Apparatus and method for vacuum continuous thermal decomposition treatment |
| CN203046826U (en) * | 2013-01-25 | 2013-07-10 | 修俊瑞 | Auxiliary purification device of peculiar smell of car heater |
| CN203216214U (en) * | 2013-03-14 | 2013-09-25 | 青岛质立机电有限公司 | Vacuum microwave drying box |
| CN203635615U (en) * | 2013-11-14 | 2014-06-11 | 西安奥赛福科技有限公司 | In-situ remediation system for polluted soil |
| CN204344488U (en) * | 2014-11-24 | 2015-05-20 | 天津尼特风机有限公司 | A kind of novel fan |
| CN205192124U (en) * | 2015-12-01 | 2016-04-27 | 杨娅珊 | Drying cabinet |
| CN205316837U (en) * | 2015-12-26 | 2016-06-15 | 上海鸿为包装制品有限公司 | Energy -saving wrapping bag oven |
| CN205351970U (en) * | 2016-02-02 | 2016-06-29 | 哈尔滨商业大学 | Vacuum drying oven |
| CN205536920U (en) * | 2016-02-20 | 2016-08-31 | 宁波大学 | Electrical heating type vacuum drying oven |
-
2017
- 2017-03-03 CN CN201710122638.6A patent/CN106895674A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006187694A (en) * | 2004-12-28 | 2006-07-20 | Nobuaki Debari | Apparatus and method for vacuum continuous thermal decomposition treatment |
| CN203046826U (en) * | 2013-01-25 | 2013-07-10 | 修俊瑞 | Auxiliary purification device of peculiar smell of car heater |
| CN203216214U (en) * | 2013-03-14 | 2013-09-25 | 青岛质立机电有限公司 | Vacuum microwave drying box |
| CN203635615U (en) * | 2013-11-14 | 2014-06-11 | 西安奥赛福科技有限公司 | In-situ remediation system for polluted soil |
| CN204344488U (en) * | 2014-11-24 | 2015-05-20 | 天津尼特风机有限公司 | A kind of novel fan |
| CN205192124U (en) * | 2015-12-01 | 2016-04-27 | 杨娅珊 | Drying cabinet |
| CN205316837U (en) * | 2015-12-26 | 2016-06-15 | 上海鸿为包装制品有限公司 | Energy -saving wrapping bag oven |
| CN205351970U (en) * | 2016-02-02 | 2016-06-29 | 哈尔滨商业大学 | Vacuum drying oven |
| CN205536920U (en) * | 2016-02-20 | 2016-08-31 | 宁波大学 | Electrical heating type vacuum drying oven |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504771A (en) * | 2017-08-04 | 2017-12-22 | 安徽英昊达精密设备有限公司 | A kind of gear measuring center part drying box to be checked |
| CN108826847A (en) * | 2018-06-29 | 2018-11-16 | 苏州市金翔钛设备有限公司 | Powder material baking oven |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170727 Address after: 100052 Beijing City, Xicheng District Xuanwu Wai Avenue No. 10 Zhuangsheng Plaza Central Office South 12 1225-1242 room Applicant after: Chen Ping Address before: Longgang District of Shenzhen City, Guangdong province 518000 de Zheng Lu Long Fu Yi Cun building on the third floor Applicant before: Wang Shuang |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170627 |