CN103673468B - Refrigerator - Google Patents

Refrigerator Download PDF

Info

Publication number
CN103673468B
CN103673468B CN201210363748.9A CN201210363748A CN103673468B CN 103673468 B CN103673468 B CN 103673468B CN 201210363748 A CN201210363748 A CN 201210363748A CN 103673468 B CN103673468 B CN 103673468B
Authority
CN
China
Prior art keywords
cabinet
refrigerator
pipe
opening
dehumidification pipe
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.)
Active
Application number
CN201210363748.9A
Other languages
Chinese (zh)
Other versions
CN103673468A (en
Inventor
马坚
肖长亮
刘越
谢玉刚
吴有志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Special Refrigerator Co Ltd
Haier Group Corp
Original Assignee
Qingdao Haier Special Refrigerator Co Ltd
Haier Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Special Refrigerator Co Ltd, Haier Group Corp filed Critical Qingdao Haier Special Refrigerator Co Ltd
Priority to CN201210363748.9A priority Critical patent/CN103673468B/en
Priority to PCT/CN2013/082567 priority patent/WO2014048214A1/en
Publication of CN103673468A publication Critical patent/CN103673468A/en
Application granted granted Critical
Publication of CN103673468B publication Critical patent/CN103673468B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04Preventing the formation of frost or condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The present invention relates to a kind of refrigerator, comprise the resistance frost device for being communicated with inside and outside refrigerator, hinder white device and comprise dehumidification pipe, be filled with dehumidizer in dehumidification pipe, and be provided with waterproof ventilated membrane, waterproof ventilated membrane is arranged inside cabinet.The cabinet of refrigerator is provided with outside opening, the cabinet mouth of refrigerator is provided with inside opening, one end of dehumidification pipe is communicated with outside opening, and the other end is communicated with inside opening.Outside opening is arranged on the back of the cabinet of refrigerator.Outside opening is provided with the leachy cabinet shell connector of band, inside opening is provided with the leachy cabinet mouth connector of band.Dehumidification pipe is connected by flexible pipe with described cabinet mouth connector.Refrigerator of the present invention, effectively can reduce the frosting degree in cabinet, extends the defrosting cycle of user, can reduce the energy consumption in refrigerator simultaneously.

Description

Refrigerator
Technical field
The present invention relates to a kind of refrigerator, refer to a kind of resistance frost device of refrigerator especially.
Background technology
Direct cooling type reach in freezer product is by twining courage evaporimeter or plate pipe evaporator refrigeration, very fast frosting usually on the wall of inner container or plate pipe evaporator of evaporimeter laminating, the steam forming frost is a from storage food, but be more from gasket leak into steam, the fluctuation of the temperature inside the box caused due to compressor start-stop, can continue to cause gas in case constantly to change relative to the air pressure in the external world, thus make gasket steam constantly leak into, and the balance air-vent that tradition is conveniently opened the door and opened on gasket, exacerbate Frost formation process.
Frostless product in current frozen type product generally adopts air-cooled, timing automatic defrost.At cabinet wall and shelf etc. that user can see, really do not have frost residual, but the speed of this series products frosting actual is faster, just knot has arrived the invisible evaporator surface of user, because blower fan increases the flowing of gas in case, the moisture of gas in case is made to condense in evaporator surface faster, once exceed certain hour, evaporator surface will accumulate more frost and ice, cause heat exchange efficiency to reduce, refrigeration is deteriorated, and time serious, frost blocks evaporator fin gap completely, to can not freeze completely, so the frost on evaporimeter regularly must be melted.
Nature intensification defrost or electrical heating defrost are shut down in usual employing timing.The former can work for the chilled products that frosting degree is less, but for frozen type product, then all needs long time defrost, so must adopt electrical heating defrost at every turn.Electrical heating defrost can make evaporimeter heat up faster, melts, but electrical heating can cause power consumption to increase, and defrost terminate after in order to balance unnecessary heat, also need additionally to increase power consumption.For frostless product, accomplish that high-grade observable index is more difficult.
And too much moisture accumulation frosting, the source of moisture is usually from food.Therefore frostless product is easy to occur food air-drying problem, and also needing increases moisturizing, at present this problem does not have good solution.So fresh-keepingly require high product for some, general recommendation is direct-cooled.But direct-cooled frosting and defrost more problems.For chest freezer, the excessive heat exchange efficiency that causes of wall of inner container frosting reduces, and power consumption increases, and for vertical product, can freeze drawer or door body when evaporimeter frosting is serious, causing cannot normal operating.If the manual defrost of user, need disconnected power down and goods all taken out just can carry out, very inconvenient.
Be head it off at present, a kind of new defrost scheme adopts electromagnetism defrost, change reach in freezer inner bag into irony, evaporimeter is normally wound around, need power-off during defrost, electromagnetism defroster is aimed at inner bag, and the electromagnetic thermal effect of generation makes inner bag temperature raise, make thick frost layer fast melt from attachment surface, thus come off easily.This invention can be clean by frostization fast.
A subject matter of electromagnetism defrost is, needs to use electromagnetism, and security pays particular attention to.Inner bag uses irony, and heat transfer efficiency is lower, and power consumption is larger.And the program is only facilitate defrost process, can not reduce the number of times of defrost, the demand of user can not be met completely, and the cost of this module is also higher.
Summary of the invention
In view of this, the object of the invention is to, a kind of refrigerator that fundamentally can reduce frosting degree is provided.
For achieving the above object, refrigerator provided by the invention, comprises the resistance frost device for being communicated with inside and outside refrigerator.
Effectively can reduce frosting degree in refrigerator by arranging the white device of resistance on refrigerator, by making to be interlinked to the outside in resistance frost device and refrigerator, the balance air-vent that the gasket on refrigerator is arranged can be replaced, product structure is optimized more.
The present invention is preferred, and the white device of described resistance comprises dehumidification pipe.
The present invention is preferred, is filled with dehumidizer in described dehumidification pipe.
Air in refrigerator can be entered by efficient drying by filling dehumidizer in dehumidification pipe, thus reduce frosting degree.
The present invention is preferred, and be provided with waterproof ventilated membrane in described dehumidification pipe, described waterproof ventilated membrane is arranged inside cabinet.
Waterproof ventilated membrane is arranged on the position inside the close cabinet in dehumidification pipe, the air with moisture can be effectively avoided to enter in cabinet, simultaneously by being taken to outside cabinet by the moisture in dehumidizer in dehumidification pipe from the dry gas in cabinet, thus the service life of dehumidizer can be extended.
The present invention is preferred, and the cabinet shell of described refrigerator is provided with outside opening, the cabinet mouth of described refrigerator is provided with inside opening, one end of described dehumidification pipe is communicated with described outside opening, and the other end is communicated with described inside opening.
The present invention is preferred, and described outside opening is arranged on the side, back of the cabinet shell of described refrigerator.
Outside opening is arranged on the back of the cabinet of refrigerator, invisible from user's angle, thus make setting more reasonable, inside opening is arranged on cabinet mouth, due near door body, therefore can comparatively fast have influence on a body, more convenient door capable of being opened body to the counterbalance effect that air pressure produces.
The present invention is preferred, and described outside opening is provided with the leachy cabinet shell connector of band, and described inside opening is provided with the leachy cabinet mouth connector of band.
The present invention is preferred, and described pore is provided with grid.
Pore arranges grid, can prevent foreign matter from entering and stop the mouth of pipe and impact effect.
The present invention is preferred, and the mouth of pipe place, inner side of described cabinet mouth connector is provided with flange.
The water inflow pipe that flange can prevent from being brought by pore external inlet is set.
The present invention is preferred, and described dehumidification pipe is connected by flexible pipe with described cabinet mouth connector.
By the refrigerator with different wall that the flexible pipe changing different length can be corresponding dissimilar.
Refrigerator of the present invention, by arranging the resistance frost device with dehumidification pipe on cabinet, effectively can reduce the frosting degree in cabinet, extending the defrosting cycle of user, can reduce the energy consumption in refrigerator simultaneously.
Accompanying drawing explanation
Fig. 1 is the detonation configuration schematic diagram representing the white device of resistance;
Fig. 2 is the detonation configuration schematic diagram representing dehumidification pipe;
Fig. 3 is the package assembly sectional view representing dehumidification pipe;
Fig. 4 is the detonation configuration schematic diagram representing cabinet mouth connector;
Fig. 5 is the package assembly schematic diagram representing cabinet mouth connector;
Fig. 6 is the structural representation representing cabinet shell connector;
Fig. 7 is the mounting structure schematic diagram representing the white device of resistance;
Fig. 8 is the schematic diagram representing the resistance installation site of white device on cabinet;
Fig. 9 is the schematic diagram representing the resistance installation site of white device on cabinet mouth.
[in figure description of symbols]
The white device of 1 resistance; 2 cabinet mouths; 3 cabinet shells; 10 dehumidification pipes; 11 bodys; 111 main pipes; 112 projections; 113 male-pipes; 12 dehumidifying filter screens; 121 moisture removing net main bodys (preferred waterproof ventilated membrane is attached to herein); 122 retainer rings; 13 filter screens; 14 pipe lids; 141 tubular caps; 1411 stop holes; 142 tubular connecting portions; 20 cabinet mouth connectors; 21 cabinet mouth installation portions; 211 caps; 2111 pores; 212 cylindrical portion; 2121 projections; 22 connect shell portion; 221 tubular shells; 2211 stop holes; 222 male-pipes; 30 cabinet shell connectors; 31 calyptras; 311 pores; 32 cylindrical body; 40 flexible pipes.
Detailed description of the invention
According to a preferred embodiment of the present invention, Fig. 1 ~ Fig. 9 represents a kind of refrigerator, this refrigerator has the white device 1 of resistance, hinders white device 1 and comprises: dehumidification pipe 10, cabinet mouth connector 20, cabinet shell connector 30 and the flexible pipe 40 be connected between cabinet mouth connector 20 and cabinet shell connector 30.
Dehumidification pipe 10 is arranged in froth bed, comprise body 11, dehumidifying filter screen 12, filter screen 13 and pipe lid 14, body 11 is in long tubular through in the axial direction, the male-pipe 113 that the diameter in axial direction stretched out comprising the larger main pipe of diameter 111 and arrange continuously in one end of this main pipe 111 is little compared with main pipe 111, the close mouth of pipe of the other end of main pipe 111 outer tube wall be circumferentially provided with a pair projection 112.
Dehumidifying filter screen 12 is arranged on inside the main pipe of male-pipe 113 side of main pipe 111, comprising: retainer ring 122 and moisture removing net main body 121.Moisture removing net main body 121 is in ladder tubular, its larger diameter side end face opening, netted in array hole of small diameter side end face, retainer ring 122 is socketed on the outer peripheral face of the smaller diameter side of this moisture removing net main body 121, the end face that this is netted is provided with waterproof ventilated membrane, and is fixed in moisture removing net main body 121 by retainer ring 122.
Filter screen 13, in tubular, is arranged on the inner side with the body 11 of male-pipe 113 opposite side of body 11, one side end face opening, netted in array hole of opposite side end face.
Dehumidizer is filled with between dehumidifying filter screen 12 in body 11 and filter screen 13.
Pipe lid 14 is that elliptoid tubular connecting portion 142 is formed by larger-diameter tubular cap 141 and the small diameter that arranges continuously in the perpendicular direction with this tubular cap 141, this tubular cap 141 is communicated with this tubular connecting portion 142 inside, the periphery of this tubular cap 141 is provided with a pair stop hole 1411 corresponding with the projection 112 on main pipe 111, coordinated by the locking of this stop hole 1411 with the projection 112 of main pipe 111, pipe lid 14 is fixed on main pipe 111.
Cabinet shell connector 30 is arranged on the side, back of the cabinet shell 3 of refrigerator, through in the axial direction in tubular roughly, the calyptra 31 that its one end is diametrically larger, the other end be the diameter that arranges continuously with this calyptra 31 less in elliptoid cylindrical body 32, be socketed in the inner side of the tubular connecting portion 142 of pipe lid 14 by this cylindrical body 32, cabinet shell connector 30 is fixed on pipe lid 14 with its axis direction and the perpendicular mode of dehumidification pipe 10.The pore 311 that connection on the outer surface of this calyptra 31 is arranged is grid-like in cross.In addition, the position being positioned at the periphery of cylindrical body 32 on the medial surface of this calyptra 31 is provided with snap ring, cabinet shell connector 30 can be fixedly mounted on cabinet shell 3 by this snap ring.
Cabinet mouth connector 20 comprises cabinet mouth installation portion 21 and is connected housing 22, cabinet mouth installation portion 21 by one end in the larger cap 211 of elliptoid diameter and the other end what arranges continuously with this cap 211 is that the cylindrical portion 212 of ellipse is formed, the roughly centre position of cap 211 is provided with the pore 2111 grid-like in cross, cylindrical portion 212 with cap 211 opposite side end face and cap 211 end face at an angle skewed, this angle of inclination is corresponding with the angle of inclination of cabinet mouth 2.The circumferential outer surface of the opposite face of this cylindrical portion 212 is provided with projection 2121.Connect and housing 22 is provided with the tubular shell 221 coordinated that to socket-connect with the cylindrical portion 212 of cabinet mouth installation portion 21, the periphery of this tubular shell 221 is provided with stop hole 2211, by coordinating of this stop hole 2211 and the projection 2121 on cabinet mouth installation portion 21, cabinet mouth installation portion 21 is fixed on and connects on housing 22.In addition, connection housing 22 is provided with the outwardly directed male-pipe 222 perpendicular with the upper and lower surface of this tubular shell 221, this male-pipe 222 is arranged continuously with this tubular shell 221, the opening part in this tubular shell 221 of this male-pipe 222 is provided with flange, for preventing the water inflow pipe brought by the external inlet of pore 2111.This tubular shell 221 skewed in what match with the inclined end face of this cylindrical portion 212 with the socket-connect end face that coordinates of the cylindrical portion 212 of cabinet mouth installation portion 21.
One end of flexible pipe 40 is connected on the male-pipe 113 of dehumidification pipe 10, and its other end is connected on the male-pipe 222 of cabinet mouth connector 20.
In the present embodiment the white device 1 of resistance be instead of the air-vent on gasket; when refrigerator inside causes temperature (pressure) to fluctuate due to the startup-shutdown of compressor; in the process of carrying out inside and outside gas exchanges; the gas in cabinet is entered by cabinet outside; drying is carried out by dehumidizer; and stopped by waterproof ventilated membrane; thus make to enter the moisture of the gas in cabinet with little amount; when gas is flowed out outside cabinet by cabinet inside; by the moisture taken away from the dry air in cabinet in dehumidizer, the service life of this dehumidizer can be extended.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Such as, in the present embodiment, carried out the waterproof drying process of air by the mode of filling dehumidizer and arranging waterproof ventilated membrane in dehumidification pipe, but be not limited thereto, also can omitting waterproof ventilated membrane, also omitting dehumidizer by arranging zigzag path in dehumidification pipe.In addition, the cabinet inner opening hindering white device also can be arranged on inner bag, and dehumidification pipe also can be arranged on cabinet shell or on inner bag.
Such as, in the present embodiment, also can increase spring assembly in dehumidification pipe, compress dehumidizer, sealing and effect on moisture extraction can be increased.
In addition, also the white device of resistance can be arranged on a body.

Claims (6)

1. a refrigerator, is characterized in that, comprises resistance frost device (1) for being communicated with inside and outside refrigerator,
The white device of described resistance comprises dehumidification pipe (10),
The cabinet shell (3) of described refrigerator is provided with outside opening, and the cabinet mouth (2) of described refrigerator is provided with inside opening, and one end of described dehumidification pipe (10) is communicated with described outside opening, and the other end is communicated with described inside opening,
Described dehumidification pipe is filled with dehumidizer in (10),
Described dehumidification pipe is provided with waterproof ventilated membrane in (10), and described waterproof ventilated membrane is arranged inside cabinet than described dehumidizer.
2. refrigerator according to claim 1, is characterized in that, described outside opening is arranged on the side, back of described cabinet shell (3).
3. refrigerator according to claim 1, is characterized in that, described outside opening is provided with the cabinet shell connector (30) with pore (311), and described inside opening is provided with the cabinet mouth connector (20) with pore (2111).
4. refrigerator according to claim 3, is characterized in that, described pore (311,2111) is provided with grid.
5. refrigerator according to claim 3, is characterized in that, the mouth of pipe place, inner side of described cabinet mouth connector (20) is provided with flange.
6. refrigerator according to claim 3, is characterized in that, described dehumidification pipe (10) is connected by flexible pipe (40) with described cabinet mouth connector (20).
CN201210363748.9A 2012-09-26 2012-09-26 Refrigerator Active CN103673468B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201210363748.9A CN103673468B (en) 2012-09-26 2012-09-26 Refrigerator
PCT/CN2013/082567 WO2014048214A1 (en) 2012-09-26 2013-08-29 Refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210363748.9A CN103673468B (en) 2012-09-26 2012-09-26 Refrigerator

Publications (2)

Publication Number Publication Date
CN103673468A CN103673468A (en) 2014-03-26
CN103673468B true CN103673468B (en) 2016-03-30

Family

ID=50311772

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210363748.9A Active CN103673468B (en) 2012-09-26 2012-09-26 Refrigerator

Country Status (2)

Country Link
CN (1) CN103673468B (en)
WO (1) WO2014048214A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017206028A1 (en) * 2016-05-30 2017-12-07 合肥华凌股份有限公司 Refrigerating device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104949435B (en) * 2015-06-09 2017-07-18 合肥华凌股份有限公司 A kind of ventilative on the freezer door body subtracts white device and refrigerator
CN106322897B (en) * 2015-06-30 2024-06-14 青岛海尔智能技术研发有限公司 Refrigerating device
CN105157321A (en) * 2015-08-18 2015-12-16 合肥华凌股份有限公司 Ventilated frost reduction device, door body and freezer with door body
CN106016895A (en) * 2016-05-30 2016-10-12 合肥华凌股份有限公司 Refrigeration device
CN105953501B (en) * 2016-06-22 2019-02-15 长虹美菱股份有限公司 A kind of low white device of refrigerating appliance
CN108955056A (en) * 2018-07-10 2018-12-07 安徽省星年华电器有限公司 A kind of removable seal strip for refrigerator door
CN112097442B (en) * 2019-06-18 2022-03-29 青岛海尔智能技术研发有限公司 Airflow dehumidification module for refrigeration and freezing device and refrigeration and freezing device
CN114076478A (en) * 2020-08-20 2022-02-22 青岛海尔特种电冰柜有限公司 Refrigerator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201828101U (en) * 2010-09-30 2011-05-11 青岛营上电器有限公司 Air pressure balance valve of freezer door body

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569208A (en) * 1984-12-07 1986-02-11 Buildex Incorporated Pressure relief port
JPH07120132A (en) * 1987-10-01 1995-05-12 Fuji Electric Co Ltd Cold gas circulation type display case
US6397620B1 (en) * 2000-11-06 2002-06-04 Spx Corporation Ultra-low temperature freezer cabinet utilizing vacuum insulated panels
DE102007021600A1 (en) * 2007-05-08 2008-11-13 BSH Bosch und Siemens Hausgeräte GmbH Housing for a refrigeration device
CN202869117U (en) * 2012-09-27 2013-04-10 海尔集团公司 Refrigerator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201828101U (en) * 2010-09-30 2011-05-11 青岛营上电器有限公司 Air pressure balance valve of freezer door body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017206028A1 (en) * 2016-05-30 2017-12-07 合肥华凌股份有限公司 Refrigerating device

Also Published As

Publication number Publication date
CN103673468A (en) 2014-03-26
WO2014048214A1 (en) 2014-04-03

Similar Documents

Publication Publication Date Title
CN103673468B (en) Refrigerator
CN103673469B (en) Refrigerator
CN202869117U (en) Refrigerator
CN106288611A (en) Refrigeration plant and the method for anti-inner bag frosting
CN107166841A (en) A kind of horizontal refrigerator put on air channel
CN104406350A (en) Air-cooled circulating evaporator system for refrigerator and refrigerator
CN108800259A (en) Kitchen ventilator
CN106638780B (en) Air water making machine
CN207113322U (en) A kind of residual heat of heat pump water heater defrosting device
CN204006895U (en) Refrigerator
CN207674787U (en) vertical freezer
CN206989549U (en) A kind of horizontal refrigerator put on air channel
CN215864256U (en) Circulation refrigerating system of freezer
CN201680582U (en) Heat pump water heater
CN207797484U (en) A kind of fruits and vegetables freezer with cold air convection circulation function
CN201992933U (en) Refrigerator
CN205154547U (en) Cylinder block, compressor, refrigerating system and refrigerator
CN105352080A (en) Combined type double-cold-source refrigerating system
CN206398893U (en) A kind of precooling cold type air-cooler again
CN206160330U (en) Evaporation -condensation does not have oily air conditioning system
CN204830652U (en) Refrigerating apparatus heat reclamation device that looses
CN108759546A (en) Prevent shell and tube structure and hot water machine of spalling
CN204854114U (en) Refrigerating apparatus
CN205227624U (en) Modular double -cold -source refrigerating system
CN209326175U (en) A kind of energy-saving quick defrosting device of refrigerator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant