CN102696284B - Air cleaner - Google Patents
Air cleaner Download PDFInfo
- Publication number
- CN102696284B CN102696284B CN201080047243.0A CN201080047243A CN102696284B CN 102696284 B CN102696284 B CN 102696284B CN 201080047243 A CN201080047243 A CN 201080047243A CN 102696284 B CN102696284 B CN 102696284B
- Authority
- CN
- China
- Prior art keywords
- air
- heat exchanger
- filter
- unit
- filter unit
- 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.)
- Expired - Fee Related
Links
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 241000195940 Bryophyta Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003415 peat Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/10—Brush filters ; Rotary brush filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/28—Particle separators, e.g. dust precipitators, using filter brushes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
- F24F1/027—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle mounted in wall openings, e.g. in windows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20536—Modifications to facilitate cooling, ventilating, or heating for racks or cabinets of standardised dimensions, e.g. electronic racks for aircraft or telecommunication equipment
- H05K7/20554—Forced ventilation of a gaseous coolant
- H05K7/2059—Forced ventilation of a gaseous coolant within rooms for removing heat from cabinets, e.g. by air conditioning device
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Aviation & Aerospace Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A kind of air filter unit (20), be configured to the outer wall for being attached to casing, described air filter unit comprises the entrance (21) on the bottom of this unit; Filter (23), is formed by the passage extended from entrance, and is placed with the seta extending laterally across described passage at least partially along described passage length; Outlet (28); Heat exchanger (24), be placed between described filter and described outlet, thus making air through described entrance and filter through described heat exchanger before leaving described unit by described outlet, wherein said air filter unit is configured to be attached described heat exchanger is arranged in use be positioned at above described filter.
Description
Technical field
The present invention relates to a kind of ventilation for such as electrical equipment box body and temperature controlled air cleaner.
Background technology
The casing of electric equipment needs to ventilate usually, and with permission equipment, unnecessary heat to be discharged to the outside environment overheated to avoid.Be used in the application of the remote location of such as mobile radio base station at electric equipment, nobody looks after equipment for a long time usually.Temperature in order to ensure equipment remains in preferred range, usually needs other cooling and ventilation unit.According to its complexity, this cooling device consumed energy, both expensive and be sometimes limited supply, and need to safeguard to avoid high failure risk.
In disclosed PCT application WO2009/090405, disclose the another kind of scheme for electric equipment cooling, it uses conditioner or large-scale fan to provide cooling.An exemplary embodiment of this application is shown in Figure 1, comprise room or casing 110, it has the air filter unit 70 be arranged on outer wall 120, for filtering the air (being indicated by arrow 75) attracted in casing, this air is used for the electric equipment of (such as in equipment cabinets 121) in cooling box.Air filter unit 70 comprises multiple plate 71, and each plate has outward extending seta, and this plate 71 to be arranged in described unit and vertical alignment, namely substantially aligns on the direction of the air stream through filter 70.Air outlet slit 73 extends in the internal volume 115 of room 110, allows air to enter this room with the direction indicated by arrow 76 vertically downward.Air vertically flows through the internal volume 115 that then filter unit 70 enters room 110 vertically downward upward.In some alternative embodiment, evaporator unit can be connected to the air outlet slit 73 between the substrate of air outlet slit and room 110, to provide extra cooling to entering into indoor air.
Under normal operational circumstances, the dust that a part is captured by filter seta can only drop out due to Action of Gravity Field, can not continuously by the degree upwards attracted through filter because use larger air intake that the speed of the air entering filter can be made to be reduced to particle.Although above-mentioned air filter arrangement can remove the particle of suspension effectively from the air entering casing, but still need once in a while that cleaning and filtering is to guarantee that filter can not block, this blocking can reduce the efficiency of filter.Clean " flushing " that can such as comprise filter material, this typically involves at least part of dismounting of filter unit.This needs, to on-the-spot, to which increase the cost of service equipment casing.
Another problem of above-mentioned existing air filter unit is the condensation in equipment box.Air conditioner unit be arranged in casing, enter the air of casing, thus cause forming dew condensation phenomenon in casing for cooling when needed, this can have an impact to the electric equipment closed on and be necessary to need to consider the drainage problem in casing.
Another problem relates to the complexity of installation, especially relevant with the number in hole required in the wall that the number and air cleaner in order to form each article that work cooling system is installed is installed.Conditioner is mounted to the parts added, needs other hole, need through this some holes from the pipe of condenser unit directed toward condenser, this defines the point condensing and can assemble potentially.
Another problem relates to the volume available in equipment box, and this volume is usually very limited and may be not enough to hold the large volume unit comprising built in air adjusting device and air intake.
Summary of the invention
What an object of the present invention is in solving the problem is one or more.
According to a first aspect of the invention, provide a kind of air filter unit, be configured to the outer wall for being attached to casing, described air filter unit comprises:
Entrance on the bottom of described unit;
Filter, is formed by the passage extended from entrance, and is placed with the seta extending laterally across described passage at least partially along described passage length;
Outlet; And
Heat exchanger, is placed between described filter and described outlet, thus makes the air through described entrance and filter pass described heat exchanger before leaving described unit by described outlet,
Wherein said air filter unit be configured to for attachment make in use described heat exchanger cloth setting in above described filter.
The advantage of said apparatus is that heat exchanger (generally including the evaporation element of air handling system) first cooled through the air of filter before air is discharged through outlet.Therefore formed any condensation will fall back filter through filter, beyond the outlet finally dropping out described unit in bottom.Other advantages of this device are, the water of this condensation can provide cleaning action to the seta of air cleaner, thus reduce the needs safeguarding investigation.In certain embodiments, heat exchanger also can be configured to the air of (if necessary) heating through it.
Evaporator is preferably configured to allow air to reach relative second surface from first surface through evaporator.This is arranged to air through filter unit and ensure that largest usable region, reduces the barrier effect of evaporator to air stream.
Evaporator preferably includes multiple fin extended between the first and second apparent surfaces, can be used for the surface area of exchanged heat at air through maximization during described unit.
Evaporator is preferably directly arranged in above described filter, falls and pass described filter to allow the condensation be formed on described evaporator.
Air filter unit comprises the fan be arranged between described outlet and described heat exchanger alternatively, passes described filter and heat exchanger and the air after filtering is discharged described unit by outlet for attracting air.The number of the parts installed will be needed when reducing in fan combination to described unit and air filter unit is installed, thus reduce installation cost.In order to reduce the size of described unit, this fan is preferably centrifugal fan, and it is configured to attract air to be upward through filter and heat exchanger and laterally discharges air towards outlet and air is entered in casing.
According to a second aspect of the invention, provide a kind of electrical equipment box body, comprise outer wall, this outer wall is provided with air filter unit according to a first aspect of the present invention, being oriented to of described air filter unit makes described heat exchanger be arranged in above described filter.Heat exchanger is arranged in above filter, thus allows condensation to fall on air cleaner and through air cleaner, to provide cleaning action, solve the condensation trouble of above-mentioned box house simultaneously.
According to a third aspect of the invention we, provide a kind of method of operation of air filter unit according to a first aspect of the present invention, described air filter unit is attached at the outer wall of casing, and the method comprises: attract air to arrive described unit through described entrance inner; Air is upwards attracted to pass described filter and heat exchanger from described entrance; And air is discharged to described casing from described unit by described outlet.The method preferably includes condensation from the steam in the air in the described unit sucked on described heat exchanger, and to form condensation, this condensation drops through described air cleaner from described heat exchanger and drops out outside described unit through described entrance.Therefore can clean air filter when condensation is passed down through described unit.
Accompanying drawing explanation
Exemplarily the present invention is described by reference to accompanying drawing now, wherein:
Fig. 1 shows the known embodiment being used in the air filter unit on equipment box of installing;
Fig. 2 a is the first perspective view according to exemplary air filter unit of the present invention;
Fig. 2 b is the second perspective view of the exemplary air filter unit in Fig. 2 a;
Fig. 3 is the front view according to exemplary air filter unit of the present invention;
Fig. 4 is the section view of the exemplary air filter unit in mounting structure.
Embodiment
Describe the air filter unit shown in Fig. 1 and relevant equipment box in conjunction with background technology of the present invention above.
Fig. 2 a and 2b shows the external view that air filter unit 20, Fig. 2 a according to the present invention shows unit 20, and Fig. 2 b shows the internal part of unit 20, and in use these internal parts are sightless.This unit comprises the air intake 21 of grid, and it allows air freely to advance into inlet plenum chamber (being indicated by arrow 25b) by (being indicated by arrow 25a) and what enter air cleaner 23.Larger air intake 21 allows air not enter described unit with being stopped with lower speed, it reduces the possibility of the larger dust granule of suction, and the particle allowing filter 23 to capture when described cell operation finally drops out described unit.Filter 23 is separated with air intake 21 by pumping chamber 22, thus provides the space of gathering for the material fallen from filter 23, therefore can not affect the air stream through unit 20.
Air cleaner 23 comprises the stacking plate of vertical orientation, and each plate has the seta extended from the one or both sides of plate.This plate can such as be installed in the groove in the interior wall being defined in filter unit main body, or is provided by as independently pre-assembled module, with ease of assembly and replacing.The particularly preferred type of air cleaner is assembled in the plate with the peat composed of rotten mosses (turf), the one or both sides of peat composed of rotten mosses overlay.
To be placed on above air cleaner 23 and what close on filter 23 is heat exchanger 24, after air is filtered, through this heat exchanger 24 before leaving unit 20.The preferred form of heat exchanger 24 is evaporator unit, and particularly, it is configured to be arranged in air filter unit, thus makes air stream vertically upward through heat exchanger 24 (being indicated by arrow 25c).The air leaving heat exchanger 24 flows through centrifugal fan 26, this centrifugal fan 26 makes air leave unit (being indicated by arrow 25d) laterally through outlet 28 and enters casing that described unit 20 is attached to (see Fig. 4, as mentioned below).Outlet 28 is less than entrance 21 in force usually.
Fig. 3 shows another inner front view of air filter unit 20, it illustrates the relative position of each parts of unit 20.Unit 20 comprises the flange 27 extended around external boundary, and it allows this unit to be installed on the flat exterior walls of casing.
Fig. 4 shows the section view according to air filter unit 20 of the present invention, and unit 20 is attached in outer support wall 41, the outer support wall of such as equipment box.In this embodiment, air intake 21 comprises the grid of the lower surface extending through unit 20, and its permission dust and condensation are left unit and allowed air to enter this unit simultaneously.Centrifugal fan 26 is arranged on the bracing frame 44 in air outlet slit pumping chamber 45, and air is blown out by fan 26, enters casing by the hole 42 provided in supporting walls 41.Hole 42 can be made the entrance 21 being substantially less than air filter unit 20, because a denier air reduces without the need to making air velocity through filter 23 and heat exchanger 24.Filter 23 in unit 20 is formed by filter tablets stacking being parallel to supporting walls 41 orientation.
Other embodiments are intended to fall in the scope of the present invention that appending claims limits.
Claims (10)
1. an air filter unit, be configured to the outer wall for being attached to casing, described air filter unit comprises:
Entrance on the bottom of described unit;
Filter, is formed by the passage extended from entrance, and is placed with the seta extending laterally across described passage at least partially along described passage length;
Outlet, for being discharged to described casing by air from described air filter unit; And
Heat exchanger, is placed between described filter and described outlet, thus makes the air through described entrance and filter pass described heat exchanger before leaving described unit by described outlet,
Wherein said air filter unit be configured to for attachment make in use described heat exchanger cloth setting in above described filter, to fall on described filter to allow the condensation be formed on described heat exchanger and pass from described filter, and leaving described air filter unit by described entrance.
2. air filter unit according to claim 1, wherein said heat exchanger unit comprises the evaporator of air handling system.
3. air filter unit according to claim 2, wherein said evaporator is configured to allow air to reach relative second surface from first surface through evaporator.
4. air filter unit according to claim 3, wherein said evaporator comprises multiple fin extended between the first and second apparent surfaces.
5. the air filter unit according to claim arbitrary in claim 2 to 4, wherein said evaporator is directly arranged in above described filter.
6. air filter unit according to claim 1, comprises the fan be arranged between described outlet and described heat exchanger, passes described filter and heat exchanger for attracting air and filtered air is discharged described outlet.
7. air filter unit according to claim 6, wherein said fan is centrifugal fan.
8. an electrical equipment box body, comprises outer wall, this outer wall is provided with the air filter unit according to aforementioned arbitrary claim, and being oriented to of described air filter unit makes described heat exchanger be arranged in above described filter.
9. a method of operation for the air filter unit according to claim arbitrary in claim 1-7, wherein said air filter unit is attached at the outer wall of casing, and the method comprises:
Air is attracted to arrive described unit through described entrance inner;
Air is upwards attracted to pass described filter and heat exchanger from described entrance; And
Air is discharged to described casing from described unit by described outlet.
10. method according to claim 9, comprise condensation from the steam in the air in the described unit sucked on described heat exchanger, to form condensation, this condensation drops through described filter from described heat exchanger and drops out outside described unit through described entrance.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0918597.6A GB2474835B (en) | 2009-10-23 | 2009-10-23 | Air filter |
| GB0918597.6 | 2009-10-23 | ||
| PCT/GB2010/001947 WO2011048371A1 (en) | 2009-10-23 | 2010-10-20 | Air filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102696284A CN102696284A (en) | 2012-09-26 |
| CN102696284B true CN102696284B (en) | 2015-12-16 |
Family
ID=41426592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080047243.0A Expired - Fee Related CN102696284B (en) | 2009-10-23 | 2010-10-20 | Air cleaner |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102696284B (en) |
| GB (1) | GB2474835B (en) |
| WO (1) | WO2011048371A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912921B (en) * | 2014-03-28 | 2017-01-25 | 上海龙禹环保科技有限公司 | Large-area horizontal air supply type air purifier |
| CN104697101A (en) * | 2015-03-23 | 2015-06-10 | 成都交子新能源科技有限公司 | Negative-pressure fresh air device |
| CN104748226A (en) * | 2015-03-23 | 2015-07-01 | 成都交子新能源科技有限公司 | Domestic air cleaning device |
| CN104697073A (en) * | 2015-03-23 | 2015-06-10 | 成都交子新能源科技有限公司 | Positive pressure type air freshening device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706739A (en) * | 1985-04-26 | 1987-11-17 | Noren Don W | Heat exchanger |
| CN2691217Y (en) * | 2004-01-09 | 2005-04-06 | 玉溪寒武纪空调工贸有限公司 | Heat radiator for industry electrical control box |
| CN101298926A (en) * | 2008-06-20 | 2008-11-05 | 深圳市建筑科学研究院有限公司 | Water washing type indoor set of split type air conditioner |
| WO2009090405A1 (en) * | 2008-01-17 | 2009-07-23 | 4Energy Limited | Air filter |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60253740A (en) * | 1984-05-31 | 1985-12-14 | Matsushita Electric Ind Co Ltd | Mounting device of air filter in air conditioner |
| CN2195721Y (en) * | 1994-05-27 | 1995-04-26 | 中国建筑科学研究院空气调节研究所 | Terminal apparatus for air conditioner and heating system common use |
| US5942017A (en) * | 1998-03-23 | 1999-08-24 | Van Winkle, Sr.; Frank A. | Electronic equipment air conditioner and purifier |
| KR20020078948A (en) * | 2001-04-11 | 2002-10-19 | 대우전자주식회사 | Air conditioner capable of supplying oxygen-rich air for exchanging filter assembly easily |
| TWI255901B (en) * | 2003-07-03 | 2006-06-01 | Lg Electronics Inc | Split type air conditioner |
| US7334424B2 (en) * | 2004-10-22 | 2008-02-26 | Winiamando Inc. | Air conditioner having independent cooling and purifying paths |
-
2009
- 2009-10-23 GB GB0918597.6A patent/GB2474835B/en not_active Expired - Fee Related
-
2010
- 2010-10-20 WO PCT/GB2010/001947 patent/WO2011048371A1/en active Application Filing
- 2010-10-20 CN CN201080047243.0A patent/CN102696284B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706739A (en) * | 1985-04-26 | 1987-11-17 | Noren Don W | Heat exchanger |
| CN2691217Y (en) * | 2004-01-09 | 2005-04-06 | 玉溪寒武纪空调工贸有限公司 | Heat radiator for industry electrical control box |
| WO2009090405A1 (en) * | 2008-01-17 | 2009-07-23 | 4Energy Limited | Air filter |
| CN101298926A (en) * | 2008-06-20 | 2008-11-05 | 深圳市建筑科学研究院有限公司 | Water washing type indoor set of split type air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0918597D0 (en) | 2009-12-09 |
| CN102696284A (en) | 2012-09-26 |
| WO2011048371A1 (en) | 2011-04-28 |
| GB2474835A (en) | 2011-05-04 |
| GB2474835B (en) | 2014-10-08 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20171020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |