CN205878338U - Permanent oxygen air cleaner of suspension type and air purifying component - Google Patents
Permanent oxygen air cleaner of suspension type and air purifying component Download PDFInfo
- Publication number
- CN205878338U CN205878338U CN201620440134.XU CN201620440134U CN205878338U CN 205878338 U CN205878338 U CN 205878338U CN 201620440134 U CN201620440134 U CN 201620440134U CN 205878338 U CN205878338 U CN 205878338U
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- Prior art keywords
- air
- filter
- housing
- cleaner
- mounting type
- Prior art date
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000001301 oxygen Substances 0.000 title claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 24
- 239000000725 suspension Substances 0.000 title abstract 2
- 238000000746 purification Methods 0.000 claims abstract description 27
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 18
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 2
- 208000024891 symptom Diseases 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 230000003503 early effect Effects 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 2
- 238000005273 aeration Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 3
- 210000002345 respiratory system Anatomy 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004531 microgranule Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 208000018569 Respiratory Tract disease Diseases 0.000 description 1
- 241000193998 Streptococcus pneumoniae Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 210000003928 nasal cavity Anatomy 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002685 pulmonary effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 206010039083 rhinitis Diseases 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229940031000 streptococcus pneumoniae Drugs 0.000 description 1
- 241000712461 unidentified influenza virus Species 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Ventilation (AREA)
Abstract
The utility model discloses a permanent oxygen air cleaner of suspension type, including casing (1), the one end of casing (1) is provided with fresh wind port (2) and return air inlet (3), and the other end is provided with air outlet (4), is formed with air duct between fresh wind port (2) and air outlet (4), return air inlet (3) and air outlet (4), is provided with early effect filters (5), electron purification unit (6), ion filter (7) and high efficiency filter (8) that are used for air -purifying in the air duct in order. The utility model discloses collect the level four and purify in an organic whole, but early effect filters can get rid of the particle that the diameter is greater than 10 microns, electron purification unit to PM2.5 purification efficiency up to 92%, ion filter effectively nitrogen oxide, oxysulfide and VOC among the de aeration, PET material high efficiency filter reaches 99% to PM2.5's disposable purification efficiency, has solved the purification problem of indoor environment high -efficiently.
Description
Technical field
This utility model relates to a kind of indoor air purification equipment, particularly relates to a kind of ceiling mounting type perseverance oxygen air
Clearing machine and clean air package.
Background technology
Haze weather is a kind of atmospheric pollution state, and haze is to surpass suspended particulate substance content various in air
Target is generally stated, especially PM2.5 (equivalent aerodynamic diameter less than or equal to 2.5 microns
Grain thing) it is considered as " arch-criminal " causing haze weather.
2013, " haze " became year key word.In the January of this year, 4 times haze process is shrouded
30 provinces (district, city), in Beijing, 5 days are not only haze skies.Having report display, China is
In 500 big cities, the city only less than 1% reaches the air quality of world health organisation recommendations
Standard, meanwhile, polluting city, the most serious 10 in the world has 7 in China.
Fog seems gentle, and various harmful fine grained is but contained in the inside, noxious substance reaches 20
Multiple, include acid, alkali, salt, amine, phenol etc., and dust, pollen, acarid, influenza virus,
Tubercule bacillus, streptococcus pneumoniae etc., its content is tens times of normal atmospheric water droplet.Compared with mist, haze pair
The healthy harm of people is bigger, owing to the floating particle thing diameter of granular tiny in haze typically exists
Less than 0.01 micron, directly can enter bronchus, even pulmonary by respiratory system, have a strong impact on people's
Respiratory system, causes the diseases such as respiratory tract, cerebrovascular, nasal cavity inflammation.
Wherein, children's torso ateliosis, haze weather dust, granule can be by the breathings of children
Road directly encroaches on that it is healthy, easily cause respiratory tract disease such as flu, cough, rhinitis, bronchitis,
Asthma etc. occur.And classroom reads as student, the place of study, it is impossible to avoiding will be with outdoor ring
Border contacts, if outdoor air quality is bad, then room air is it is difficult to ensure that good quality.Additionally,
In classroom, population density is big, air flow property is poor, and it is healthy that haze sky more affects child.
At present, the filter assemblies in existing air cleaner mostly uses the first effect of routine, middle effect, Asia
Efficiently or high efficiency particulate air filter, simple in construction, function singleness, generally exist to finely ground particles (especially
PM2.5) problem that strainability is poor, it is impossible to meet the new wind under the conditions of current haze weather, return air
Filter.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, easy for installation, and to finely ground particles
The ceiling mounting type perseverance oxygen air cleaner of (especially PM2.5) good filtration effect and clean air package.
For achieving the above object, ceiling mounting type perseverance oxygen air cleaner of the present utility model and clean air package
Concrete technical scheme be:
A kind of ceiling mounting type perseverance oxygen air cleaner, including housing, one end of housing is provided with fresh wind port and returns
Air port, the other end is provided with air outlet, is formed between fresh wind port and air outlet, return air inlet and air outlet
Air duct, is sequentially arranged in air duct for purifying the roughing efficiency air filter of air, electric purification list
Unit, ion filter and high efficiency particulate air filter, roughing efficiency air filter is arranged near fresh wind port and return air inlet.
A kind of clean air package, is arranged in air cleaner, including be sequentially arranged: primarily efficient filter
Device, is more than the suspendable particles thing of 10 μm for removing diameter in air；Electric purification unit, uses
Suspendable particles thing between the PM10-0.01 removed in air；Ion filter, is used for removing sky
Nitrogen oxides in gas, oxysulfide, VOC；High efficiency particulate air filter, for removing the PM2.5 in air.
Ceiling mounting type perseverance oxygen air cleaner of the present utility model and clean air package have the advantage that
1) integrate level Four to purify, by diameter in the removable air of roughing efficiency air filter more than 10 microns
Suspendable particles thing, electric purification unit can be up to 92% to PM2.5 purification efficiency, ion filter
Device can effectively remove nitrogen oxides, oxysulfide and VOC in air, PET material high efficiency particulate air filter
The disposable purification efficiency of PM2.5 can be reached 99%, solve the purifying problem of indoor environment efficiently.
2) safe and silent, by using brush DC frequency conversion " EC blower fan ", noise is low, security performance
Stable.
3) easy to control, Non-follow control can be selected the most flexibly, automatically control, and cloud controls
Etc. mode.
Accompanying drawing explanation
Fig. 1 is the cut-away view of ceiling mounting type perseverance oxygen air cleaner of the present utility model；
Fig. 2 is the scheme of installation of ceiling mounting type perseverance oxygen air cleaner of the present utility model.
Detailed description of the invention
In order to be better understood by the purpose of this utility model, structure and function, below in conjunction with the accompanying drawings, to this
A kind of ceiling mounting type perseverance oxygen air cleaner of utility model and clean air package do further details of retouching
State.
As depicted in figs. 1 and 2, ceiling mounting type perseverance oxygen air cleaner of the present utility model includes housing 1,
Housing 1 includes air intake and outlet air end, and wherein, the air intake of housing 1 is provided with fresh wind port 2 and return air
Mouth 3, outlet air end is provided with air outlet 4, and the fresh wind port 2 of housing 1 air intake is by pipeline and outdoor ring
Border is connected, the return air inlet 3 of housing 1 air intake and the air outlet 4 of outlet air end respectively with indoor environment phase
Connection.
Further, housing 1 is internal is formed with air between fresh wind port 2, return air inlet 3 and air outlet 4
Passage.Thus, outdoor new wind can be by the air within the fresh wind port 2 of housing 1 air intake, housing 1
Passage, the air outlet 4 of housing 1 outlet air end are sent to indoor；Indoor return air can pass through housing 1 air intake
Return air inlet 3, the air duct within housing 1, the air outlet 4 of housing 1 outlet air end be sent to indoor.
Further, fresh wind port 2 is arranged on the end face of housing 1 air intake, and return air inlet 3 is arranged on housing
On the side of 1 air intake, air outlet 4 is arranged on the end face of housing 1 outlet air end, fresh wind port 2 with go out
Air port 4 is oppositely arranged.Wherein, the junction of fresh wind port 2, return air inlet 3 and air duct is provided with electricity
Wind symptom valve 10, Electric air valve 10 optionally makes fresh wind port 2 be connected with air duct, return air inlet
3 are connected with air duct, or make fresh wind port 2 be connected with air duct together with return air inlet 3.
Further, air duct has been sequentially arranged between fresh wind port 2, return air inlet 3 and air outlet 4
Roughing efficiency air filter 5, electric purification unit 6, ion filter 7 and high efficiency particulate air filter 8, primarily efficient filter
Device 5 is arranged near fresh wind port 2, return air inlet 3.Wherein, roughing efficiency air filter 5 is used for removing in air directly
Footpath is more than the suspendable particles thing of 10 μm；Electric purification unit 6 is for removing in air
Suspendable particles thing between PM10-0.01；Ion filter 7 for remove nitrogen oxides in air,
Oxysulfide, VOC etc.；High efficiency particulate air filter 8 is for removing the PM2.5 in air.It should be noted that
Electric purification unit in the present embodiment preferably employs two-period form electrostatic precipitation filter, makes microgranule in air
Catching particulate pollutant in high efficiency mode after charged, wherein, first paragraph is ionized region, and major part is big
Particulate matter retains by imitating at the beginning of preposition G3 metal, and less microgranule arrives the ionization section of dust storage chamber with air-flow,
Being ionized by a series of high energy ionization silk (running voltage is more than 8000V), second segment is accumulation area,
Charged ion arrives accumulation area, and charged particle is attracted to opposite polarity collecting plate, and (running voltage is more than
On 4000V)；High efficiency particulate air filter preferably employs PET material high efficiency particulate air filter, disposable to PM2.5
Purification efficiency can reach 99%.
Further, in air duct high efficiency particulate air filter 8 and air outlet 4 and between be provided with ventilation blower 9.
Wherein, ventilation blower preferably employs brush DC frequency conversion motor, to realize low consumption, low noise, high efficiency
Purpose.
Further, ceiling mounting type perseverance oxygen air cleaner of the present utility model also includes controller, controller with
Housing 1 is split type setting, as required controller may be provided at indoor other correct positions at (as
Wall etc.), and communicate to connect with housing 1, meanwhile, this controller also controls platform with long-distance cloud and is connected,
So that can as required Non-follow control, automatically control or remotely control air cleaner keying and
Control resh air requirement and the return air amount of air cleaner, reach to manipulate effect easily.
Further, housing 1 is additionally provided with Maintenance and Repair door, to facilitate, the assembly within housing 1 is entered
Row maintenance is changed.Wherein, the quantity of Maintenance and Repair door is preferably three, lays respectively at Electric air valve,
At roughing efficiency air filter, electric purification unit, ion filter and high efficiency particulate air filter, at ventilation blower.
As depicted in figs. 1 and 2, the operation principle of ceiling mounting type perseverance oxygen air cleaner of the present utility model is:
In the case of outdoor air is good, Electric air valve 10 can be controlled by cloud controller, make new
Air port 2 is connected with air duct, the most only introduces new wind.Under the effect of ventilation blower 9, outdoor is new
Wind enters after air cleaner, can pass sequentially through roughing efficiency air filter 5 (remove diameter more than 10 μm can
Particle), electric purification unit 6 (removing the suspendable particles between PM10-0.01), ion
Filter 7 (removing the oxynitride in air, oxysulfide, VOC), high efficiency particulate air filter 8 are (right
PM2.5 clearance reaches 99%), the fresh air after final purification is entered indoor by air outlet 4.
In the case of outdoor air is severe, Electric air valve 10 can be controlled by cloud controller, make back
Air port 3 is connected with air duct, the most only introduces return air.Under the effect of ventilation blower 9, indoor wind enters
After entering air cleaner, roughing efficiency air filter 5 can be passed sequentially through and (remove diameter suspending more than 10 μm
Granule), electric purification unit 6 (removing the suspendable particles between PM10-0.01), ion filter
Device 7 (removing the oxynitride in air, oxysulfide, VOC), high efficiency particulate air filter 8 are (to PM2.5
Clearance reaches 99%), the fresh air after final purification is entered indoor by air outlet 4.
In the case of room air is bad, Electric air valve 10 can be controlled by cloud controller, make new
Air port 2, return air inlet 3 are connected with air duct together, introduce new wind and return air the most simultaneously, are formed mixed
Wind.Under the effect of ventilation blower 9, mixed wind can pass sequentially through roughing efficiency air filter 5 and (remove diameter more than 10
The suspendable particles of μm), electric purification unit 6 (removing the suspendable particles between PM10-0.01),
Ion filter 7 (removing the oxynitride in air, oxysulfide, VOC), high efficiency particulate air filter
8 (PM2.5 clearance is reached 99%), the fresh air after final purification is entered indoor by air outlet 4.
Ceiling mounting type perseverance oxygen air cleaner of the present utility model integrates level Four and purifies, and passes through primarily efficient filter
The diameter suspendable particles thing more than 10 microns in the removable air of device, electric purification unit can be to PM2.5
Purification efficiency is up to 92%, ion filter can effectively remove the nitrogen oxides in air, oxysulfide and
VOC, PET material high efficiency particulate air filter can reach 99%, efficiently to the disposable purification efficiency of PM2.5
Solve the purifying problem of indoor environment.
By specific embodiment, this utility model is further described above, it should be appreciated that
It is, the most concrete description, should not be construed as the restriction to spirit and scope of the present utility model, ability
The various amendments that above-described embodiment is made by those of ordinary skill in territory after reading this specification, all belong to
In the scope that this utility model is protected.
Claims (10)
1. a ceiling mounting type perseverance oxygen air cleaner, it is characterised in that include housing (1), housing (1)
One end be provided with fresh wind port (2) and return air inlet (3), the other end is provided with air outlet (4), newly
It is formed with air duct between air port (2) and air outlet (4), return air inlet (3) and air outlet (4),
Be sequentially arranged in air duct the roughing efficiency air filter (5) for purifying air, electric purification unit (6),
Ion filter (7) and high efficiency particulate air filter (8), roughing efficiency air filter (5) near fresh wind port (2) and
Return air inlet (3) is arranged.
Ceiling mounting type perseverance oxygen air cleaner the most according to claim 1, it is characterised in that new wind
Mouthful (2) and air duct, between return air inlet (3) and air duct, it is provided with switch valve, so that newly
Air port (2) is connected with air duct with air duct and/or return air inlet (3).
Ceiling mounting type perseverance oxygen air cleaner the most according to claim 2, it is characterised in that new wind
Mouth (2) is arranged on the end face of housing (1), and return air inlet (3) is arranged on the side of housing (1),
The junction of fresh wind port (2), return air inlet (3) and air duct is provided with Electric air valve (10), electricity
Wind symptom valve (10) optionally makes fresh wind port (2) and/or return air inlet (3) be connected with air duct
Logical.
Ceiling mounting type perseverance oxygen air cleaner the most according to claim 3, it is characterised in that air-out
Mouth (4) is arranged on the upper end face the most relative with fresh wind port (2) of housing (1).
Ceiling mounting type perseverance oxygen air cleaner the most according to claim 1, it is characterised in that air
Being provided with ventilation blower (9) in passage, ventilation blower (9) is positioned at high efficiency particulate air filter (8) and air outlet (4)
Between.
Ceiling mounting type perseverance oxygen air cleaner the most according to claim 1, it is characterised in that housing
(1) being provided with Maintenance and Repair door on, Maintenance and Repair door is positioned at roughing efficiency air filter (5), electric purification list
Unit (6), ion filter (7) and high efficiency particulate air filter (8) place.
Ceiling mounting type perseverance oxygen air cleaner the most according to claim 3, it is characterised in that housing
(1) being provided with Maintenance and Repair door on, Maintenance and Repair door is positioned at Electric air valve (10) place.
Ceiling mounting type perseverance oxygen air cleaner the most according to claim 5, it is characterised in that housing
(1) being provided with Maintenance and Repair door on, Maintenance and Repair door is positioned at ventilation blower (9) place.
Ceiling mounting type perseverance oxygen air cleaner the most according to claim 1, it is characterised in that also wrap
Including controller, controller and housing (1) are split type setting, manually controllable by controller, certainly
Move the keying controlling or remotely controlling air cleaner and the resh air requirement and the return air that control air cleaner
Amount.
10. a clean air package, is arranged in air cleaner, it is characterised in that include sequentially
Arrange:
Roughing efficiency air filter (5), is more than the suspendable particles thing of 10 μm for removing diameter in air；
Electric purification unit (6), for removing the suspendable particles between the PM10-0.01 in air
Thing；
Ion filter (7), for removing nitrogen oxides in air, oxysulfide, VOC；
High efficiency particulate air filter (8), for removing the PM2.5 in air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620440134.XU CN205878338U (en) | 2016-05-16 | 2016-05-16 | Permanent oxygen air cleaner of suspension type and air purifying component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620440134.XU CN205878338U (en) | 2016-05-16 | 2016-05-16 | Permanent oxygen air cleaner of suspension type and air purifying component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205878338U true CN205878338U (en) | 2017-01-11 |
Family
ID=57687089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620440134.XU Active CN205878338U (en) | 2016-05-16 | 2016-05-16 | Permanent oxygen air cleaner of suspension type and air purifying component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205878338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655082A (en) * | 2017-10-13 | 2018-02-02 | 浙江艾尔森环保科技有限公司 | A kind of band fresh air function ceiling type air purifier |
-
2016
- 2016-05-16 CN CN201620440134.XU patent/CN205878338U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655082A (en) * | 2017-10-13 | 2018-02-02 | 浙江艾尔森环保科技有限公司 | A kind of band fresh air function ceiling type air purifier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ouyang Wenqi Inventor before: Zhang Zhiqiang |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170420 Address after: 065500 Langfang science and Technology Park, Guan, new industrial demonstration zone of the satellite navigation industry park A3 Patentee after: Hebei Intelligent Technology Co., Ltd. Address before: 065500 Langfang science and Technology Park, Guan, new industrial demonstration zone of the satellite navigation industry park A-3 Patentee before: HEBEI HANGAN INTELLIGENT TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170817 Address after: 065500 Langfang science and Technology Park, Guan, new industrial demonstration zone of the satellite navigation industry park A-3 Patentee after: Hebei Hangan Intelligent Technology Co., Ltd. Address before: 065500 Langfang science and Technology Park, Guan, new industrial demonstration zone of the satellite navigation industry park A3 Patentee before: Hebei Intelligent Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tong Honglei Inventor before: Ouyang Wenqi |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180302 Address after: 101102 Zhongguancun science and Technology Park, Tongzhou Science Park, Tongzhou District Jinqiao Science and Technology Industrial Park, Central Road, No. 17, No. 55, building Patentee after: BEIJING ROIT INTELLIGENT TECHNOLOGY CO., LTD. Address before: 065500 Langfang science and Technology Park, Guan, new industrial demonstration zone of the satellite navigation industry park A-3 Patentee before: Hebei Hangan Intelligent Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211222 Address after: 435000 No.7 and No.8, Huangjinshan industrial supporting Park, Huangshi City, Hubei Province Patentee after: Hubei Rongyao Intelligent Technology Co.,Ltd. Address before: 101102 Beijing Tongzhou District Zhongguancun Science and Technology Park Tongzhou Garden Jinqiao Science and Technology Industrial Base, No. 17, 55 Huanke Road Patentee before: BEIJING ROIT INTELLIGENT TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |