CN102913970A - Rotary air curtain rang hood with oil fume filter device - Google Patents

Rotary air curtain rang hood with oil fume filter device Download PDF

Info

Publication number
CN102913970A
CN102913970A CN2012103967879A CN201210396787A CN102913970A CN 102913970 A CN102913970 A CN 102913970A CN 2012103967879 A CN2012103967879 A CN 2012103967879A CN 201210396787 A CN201210396787 A CN 201210396787A CN 102913970 A CN102913970 A CN 102913970A
Authority
CN
China
Prior art keywords
air
hood
wind screen
rotary wind
range hood
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.)
Granted
Application number
CN2012103967879A
Other languages
Chinese (zh)
Other versions
CN102913970B (en
Inventor
刘小民
高德康
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.)
Hangzhou Deyi Zhijia Co.,Ltd.
Original Assignee
DE&E APPLIANCES Co Ltd
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 DE&E APPLIANCES Co Ltd filed Critical DE&E APPLIANCES Co Ltd
Priority to CN201210396787.9A priority Critical patent/CN102913970B/en
Publication of CN102913970A publication Critical patent/CN102913970A/en
Application granted granted Critical
Publication of CN102913970B publication Critical patent/CN102913970B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Ventilation (AREA)

Abstract

The invention provides a rotary air curtain rang hood with an oil fume filter device. The rotary air curtain rang hood comprises an engine cover, a fan, a suction pipe and an oil fume separation device, wherein a first flow divider and a second flow divider are respectively mounted on an outlet of the fan; the outlet of the second flow divider is respectively connected with a plurality of air supply ducts; a plurality of air supply columns communicated with the air supply ducts are mounted in the engine cover; each air supply column is provided with a strip-shaped nozzle; the airflow forms a rotary air curtain in the engine cover after coming out of the strip-shaped nozzles; one end of the suction pipe is connected with the oil fume separation device, while the other end of the suction pipe is arranged above the rotary air curtain; and an ejector pipe is connected on the outlet of the first flow divider and extends into the suction pipe. According to the rotary air curtain rang hood with an oil fume filter device, the rotary air curtain is formed in the engine cover, so that the spillover diffusion of oil fume can be effectively avoided in the cooking process, and the extracting rate of the oil fume is increased.

Description

A kind of rotary wind screen range hood with lampblack filter
Technical field
The present invention relates to a kind of kitchen utensils, particularly a kind of rotary wind screen range hood with lampblack filter.
Background technology
At present, the oil smoke of most of range hoods is sucked and is discharged by leafy blower fan, so just makes inevitably to produce on the impeller that greasy dirt accumulates, dry up, fouling, and dismounting trouble, cleaning are difficult; In addition, the grease that accumulates has also destroyed the dynamic balancing of impeller, and the operation noise is increased, and affects result of use, reduction of service life.Although present gas-screen type cooking fumes suction is mostly with air curtain, but its air curtain air port is at the leading edge of range hood and the casing downside of both sides, blow out air-flow from top to bottom and form air curtain, in this design, because the ascent direction of the airflow direction of air curtain and oil smoke is opposite, affect the effect of pump drainage oil smoke, in addition, oil smoke near air curtain is dispelled by downward air-flow easily, and collection cigarette poor effect is polluted kitchen environment.Simultaneously, a lot of range hoods fully do not purify oil smoke and just directly enter atmosphere, perhaps long between in use after, screen pack sticks greasy dirt, to the clean-up effect variation of oil smoke, all can be to environment.
Summary of the invention
Purpose of the present invention is exactly the deficiency that will overcome above-mentioned range hood, and a kind of rotary wind screen range hood with lampblack filter is provided.The rotary wind screen that this device forms can prevent the excessive diffusion of oil smoke in gastronomical process effectively, improves the pumping-clean rate of oil smoke; And the air-flow with oil smoke is inner without blower fan in this device, also just can not produce greasy dirt in the inner phenomenon that adheres to of blower fan, avoid cleaning, also can effectively avoid because problems such as the bladed disk vibration that the greasy dirt adhesion causes, aeroperformance decline, noise increases; In addition, design lampblack filter in this device, can effectively oil smoke have been separated from air, entered again atmosphere, protection of the environment.
For solving above technical problem, the present invention by the following technical solutions:
A kind of rotary wind screen range hood with lampblack filter, comprise hood, blower fan, aspirating air pipe and oil-fume separating device, the outlet of described blower fan is separately installed with the first current divider, the outlet of described the first current divider is equipped with injection pipeline and the second current divider, the outlet of the second current divider is connected with a plurality of air supply ducts, described hood inside is equipped with a plurality of air-supply columns that communicate with each air supply duct, each air-supply column is provided with bar nozzle, air-flow through bar nozzle out after, in hood, form rotary wind screen; One end of described aspirating air pipe links to each other with oil-fume separating device, and the other end is positioned at the rotary wind screen top, and described injection pipeline extends in the aspirating air pipe.
As the preferred embodiments of the present invention, the bar nozzle on a plurality of air-supply columns forms the circular configuration take the hood center as the center of circle, and each is tangent from bar nozzle air-flow and this circle out.
As the preferred embodiments of the present invention, the bar nozzle on described each air-supply column is respectively to the deflection of hood center.
As the preferred embodiments of the present invention, the bar nozzle on described each air-supply column is respectively to hood center deflection 20 degree.
As the preferred embodiments of the present invention, the bottom-up successively interval of described bar nozzle is equipped with a plurality of guide vanes, and each guide vane all is inclined upwardly.
As the preferred embodiments of the present invention, the L-shaped structure of described aspirating air pipe, comprise the first paragraph that links to each other with oil-fume separating device and link to each other and the second segment vertical with first paragraph with first paragraph that the air line distance of described injection pipeline in aspirating air pipe is greater than the external diameter of aspirating air pipe second segment.
As the preferred embodiments of the present invention, the bottom of described oil-fume separating device has removed and installed pallet, the oil that separates in order to accept oil-fume separating device.
As the preferred embodiments of the present invention, described smoke exhaust ventilator further includes without blade fan, this without blade fan between rotary wind screen and aspirating air pipe.
As the preferred embodiments of the present invention, described blower fan is positioned at the hood outside.
Range hood of the present invention has the following advantages at least: the present invention has formed rotary wind screen in hood inside, not only overcome the airflow direction of the conventional air curtain of blowing from top to bottom with the opposite defective of oil smoke ascent direction, and suction airflow and air curtain air-flow are united two into one, this design can effectively stop oil smoke excessive, have higher smoke collecting efficiency, have again higher pumping efficiency.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of the rotary wind screen range hood of band lampblack filter of the present invention.
Fig. 2 is the sectional structure schematic diagram of A-A face among Fig. 1.
Fig. 3 is the structural representation of guide vane of the present invention.
Fig. 4 is the structural representation of aspirating air pipe of the present invention, injection pipeline and oil-fume separating device.
Fig. 5 is the structural representation of the present invention's the first current divider, the second current divider and air supply duct.
1 Bar nozzle 8 The injection pipeline
2 Guide vane 9 Aspirating air pipe
3 The air-supply column 10 The first current divider
4 Blower fan 11 Side board
5 Hood 12 The second current divider
6 Oil-fume separating device 13 Air supply duct
7 Without blade fan    
The specific embodiment
Below in conjunction with accompanying drawing range hood of the present invention is described in detail.
See also Fig. 1, Fig. 4 and shown in Figure 5, range hood of the present invention comprises hood 5, blower fan 4, without blade fan 7, aspirating air pipe 9 and oil-fume separating device 6, described aspirating air pipe 9 is roughly L shaped structure, one end and the oil-fume separating device 6 of aspirating air pipe 9 are smoothly connected, the other end is without blade fan 7, and described hood 5 is positioned at without blade fan 7 belows.Described aspirating air pipe 9 comprises the first paragraph that links to each other with oil-fume separating device 6 and links to each other and the second segment vertical with first paragraph with first paragraph.
The outlet of described blower fan 4 is provided with the first current divider 10 and is used for the air-flow in the blower fan 4 is divided into two strands, satisfies its needed throughput to guarantee two strands of air-flows.The port of export of described the first current divider 10 is connected with respectively injection pipeline 8 and the second current divider 12, and the air-flow that described the second current divider 12 is used for will entering in the second current divider 12 is divided into four strands.Please consult especially shown in Figure 4, described injection pipeline 8 extends in the first paragraph of aspirating air pipe 9 always, described injection pipeline 8 is from entering aspirating air pipe 9 to the axial distance of the injection pipeline 8 ends external diameter greater than aspirating air pipe 9 second segments, in other words, the air line distance of described injection pipeline 8 in aspirating air pipe 9 is greater than the external diameter of aspirating air pipe 9 second segments.
The bottom of described oil-fume separating device 6 is provided with dismountable pallet, and the greasy dirt that oil-fume separating device 6 separates is deposited in the pallet by Action of Gravity Field.
Please consult especially shown in Figure 5, the outlet of described the second current divider 12 is connected with four air supply ducts 13, described hood 5 is equipped with four air-supply columns 3 at four corner locations, described each air-supply column 3 communicates with a corresponding air supply duct 13, please consult especially Fig. 1, Fig. 2 and shown in Figure 3, be provided with bar nozzle 1 on the described air-supply column 3, bar nozzle 1 on each air-supply column 3 is respectively to center deflection certain angle, in the present embodiment, to center deflection 20 degree, like this, bar nozzle 1 on four air supply ducts 13 forms the circular configuration take hood 5 centers as the center of circle, like this, when air-flow that blower fan 4 produces through bar nozzle 1 out after, at the hood 4 interior swirling eddies that produce annular; In addition, bottom-up successively interval is equipped with a plurality of guide vanes 2 on the bar nozzle 1 on described each air supply duct 13, to guarantee the direction of bar nozzle 1 exit flow on the horizontal deflection, is conducive to the formation of artificial cyclone.
The setting of the present invention's the first current divider 10 guarantees that the air-flow that enters into injection pipeline 8 forms jet, enters into the second current divider 12, through air supply duct 13, air-supply column 3, forms rotary wind screen from bar nozzle 1 air-flow out at last.
The object of the present invention is achieved like this: by the air-flow of blower fan 4 generations, enter into respectively in the second current divider 12 and the injection pipeline 8 through the first current divider 10, air-flow in the second current divider 12 and the injection pipeline 8 or equate or do not wait, the air-flow that enters into the second current divider 12 enters respectively 4 air-supply columns 3 through air supply duct 13, at last ejection from bar nozzle 1 produces rotary wind screen; Another part air-flow that is produced by blower fan 4 enters injection pipeline 8 and produces jets since the swabbing action of jet generation with the air-flow inhale pipeline 9(of rotary wind screen because rotary wind screen below aspirating air pipe), namely produced artificial cyclone; Installed between aspirating air pipe 9 and rotary wind screen without blade fan 7, it can increase inspiratory capacity, makes simultaneously inspiratory capacity be convenient to regulate, and can make again inspiratory airflow more even, more is conducive to formation and the adjusting of artificial cyclone; The air-flow that enters aspirating air pipe 9 enters oil-fume separating device 6 with higher flow velocity, this oil-fume separating device 6 has the principle that is similar to cyclone separator, the air-flow ascending motion of in oil-fume separating device 6, spinning, under the effect of centrifugal force, the oil smoke drop that density is larger can be attached on the wall in the runner outside, attaching oil drops on the wall and compiles, and under Action of Gravity Field, flow downward, the pallet that flows to oil-fume separating device 6 bottoms is collected, pallet can take off and clean and change, and enters atmosphere through the gas that separates.
The present invention's advantage compared with prior art is:
(1) the present invention has adopted rotary wind screen, not only overcome the airflow direction of existing conventional air curtain of blowing from top to bottom with the opposite defective of oil smoke ascent direction, and suction airflow and air curtain air-flow are united two into one, this design can effectively stop oil smoke excessive, have higher smoke collecting efficiency, have again higher pumping efficiency.
(2) blower fan 4 of the present invention is positioned at the hood outside, connect from hood 5 internal directs with the air-flow of oil smoke and to enter into aspirating air pipe 9, discharged by oil-fume separating device 6 at last, like this, with the air-flow of oil smoke without blower fan 4 inside, therefore, avoid adhering to owing to oil smoke harmful phenomenons such as noise increase that the blade of blower fan 4 produces, the lost of life, and avoid cleaning.
(3) with oil-fume separating device 6; take full advantage of the larger characteristics of air velocity in the smoke discharging pipe in this device; the air-flow that flow velocity is larger is introduced oil-fume separating device 6, can separate and collect oil smoke, protection of the environment on the one hand, and the flow velocity of discharging air-flow is reduced.
Therefore, the present invention has the smoke collecting efficiency height, the kitchen internal contamination is few, noise is low, the life-span is long, be convenient to cleaning, compact conformation, be convenient to install, discharge of noxious gases is few, protection of the environment, cheap, be convenient to implement, be easy to the advantage such as popularization.
The above only is one embodiment of the present invention, it or not whole or unique embodiment, the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention is claim of the present invention and contains.

Claims (9)

1. rotary wind screen range hood with lampblack filter, it is characterized in that: comprise hood, blower fan, aspirating air pipe and oil-fume separating device, the outlet of described blower fan is separately installed with the first current divider, the outlet of described the first current divider is equipped with injection pipeline and the second current divider, the outlet of the second current divider is connected with a plurality of air supply ducts, described hood inside is equipped with a plurality of air-supply columns that communicate with each air supply duct, each air-supply column is provided with bar nozzle, air-flow through bar nozzle out after, in hood, form rotary wind screen; One end of described aspirating air pipe links to each other with oil-fume separating device, and the other end is positioned at the rotary wind screen top, and described injection pipeline extends in the aspirating air pipe.
2. the rotary wind screen range hood with lampblack filter as claimed in claim 1 is characterized in that: the bar nozzle on a plurality of air-supply columns forms the circular configuration take the hood center as the center of circle, and each justifies tangent from bar nozzle air-flow out and this.
3. the rotary wind screen range hood with lampblack filter as claimed in claim 2 is characterized in that: the bar nozzle on described each air-supply column is respectively to the deflection of hood center.
4. the rotary wind screen range hood with lampblack filter as claimed in claim 3 is characterized in that: the bar nozzle on described each air-supply column is respectively to hood center deflection 20 degree.
5. as claimed in claim 1 or 2 or 3 or 4 the rotary wind screen range hood with lampblack filter, it is characterized in that: the bottom-up successively interval of described bar nozzle is equipped with a plurality of guide vanes, and each guide vane all is inclined upwardly.
6. the rotary wind screen range hood with lampblack filter as claimed in claim 1, it is characterized in that: the L-shaped structure of described aspirating air pipe, comprise the first paragraph that links to each other with oil-fume separating device and link to each other and the second segment vertical with first paragraph with first paragraph that the air line distance of described injection pipeline in aspirating air pipe is greater than the external diameter of aspirating air pipe second segment.
7. the rotary wind screen range hood with lampblack filter as claimed in claim 1, it is characterized in that: the bottom of described oil-fume separating device has removed and installed pallet, the greasy dirt that separates in order to accept oil-fume separating device.
8. the rotary wind screen range hood with lampblack filter as claimed in claim 1, it is characterized in that: described range hood further includes without blade fan, this without blade fan between rotary wind screen and aspirating air pipe.
9. the rotary wind screen range hood with lampblack filter as claimed in claim 1, it is characterized in that: described blower fan is positioned at the hood outside.
CN201210396787.9A 2012-10-18 2012-10-18 Rotary air curtain rang hood with oil fume filter device Active CN102913970B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210396787.9A CN102913970B (en) 2012-10-18 2012-10-18 Rotary air curtain rang hood with oil fume filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210396787.9A CN102913970B (en) 2012-10-18 2012-10-18 Rotary air curtain rang hood with oil fume filter device

Publications (2)

Publication Number Publication Date
CN102913970A true CN102913970A (en) 2013-02-06
CN102913970B CN102913970B (en) 2015-01-14

Family

ID=47612454

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210396787.9A Active CN102913970B (en) 2012-10-18 2012-10-18 Rotary air curtain rang hood with oil fume filter device

Country Status (1)

Country Link
CN (1) CN102913970B (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143542A (en) * 2013-03-19 2013-06-12 苏州市易柯露环保科技有限公司 Vertical gas collection deodorant complete equipment
CN104006430A (en) * 2013-12-31 2014-08-27 昆山洛博格机械技术咨询有限公司 Novel bladeless oil smoke exhausting device
CN105180239A (en) * 2015-09-17 2015-12-23 宁波方太厨具有限公司 Kitchen small tornado lampblack sucking system and rotary air curtain generator thereof
CN105928028A (en) * 2016-06-23 2016-09-07 洛阳理工学院 Lampblack exhauster capable of preventing smoke from diffusing
CN106402972A (en) * 2016-11-07 2017-02-15 宁波方太厨具有限公司 Smoke exhauster
CN106524252A (en) * 2016-11-07 2017-03-22 宁波方太厨具有限公司 Extractor hood
WO2018157664A1 (en) * 2017-02-28 2018-09-07 Lien Fue Sang Fume cyclonic-collection device, range hood, and kitchen fume-extracting and cooking equipment
CN108626837A (en) * 2018-03-05 2018-10-09 中国矿业大学 A kind of pillar balanced ventilation device and method
CN110478985A (en) * 2019-08-16 2019-11-22 沈阳工程学院 A kind of degasification dust collecting method based on curtain jet and rotation negative pressure flow field
CN111219759A (en) * 2018-11-27 2020-06-02 宁波方太厨具有限公司 Implementation method for cleaning reminding of range hood
CN116037361A (en) * 2023-03-31 2023-05-02 河北恒通管件集团有限公司 Cyclone type elbow electrostatic spraying device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2362015Y (en) * 1998-11-09 2000-02-02 钟有学 Domestic jet clean-free cooking fume extractor
CN1538114A (en) * 2003-04-17 2004-10-20 张凤杰 Kitchen ventilator without oil attachment
CN2763721Y (en) * 2005-02-01 2006-03-08 牛忠臣 Exhauster
CN1940392A (en) * 2005-09-26 2007-04-04 司廷 Entrainment internally-circulating cooker hood with air curtain
JP2009139056A (en) * 2007-12-10 2009-06-25 Fuji Industrial Co Ltd Removal device for air pollutant and range hood
TWM423810U (en) * 2011-11-02 2012-03-01 Univ Chaoyang Technology Upward air swirl ventilation hood

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2362015Y (en) * 1998-11-09 2000-02-02 钟有学 Domestic jet clean-free cooking fume extractor
CN1538114A (en) * 2003-04-17 2004-10-20 张凤杰 Kitchen ventilator without oil attachment
CN2763721Y (en) * 2005-02-01 2006-03-08 牛忠臣 Exhauster
CN1940392A (en) * 2005-09-26 2007-04-04 司廷 Entrainment internally-circulating cooker hood with air curtain
JP2009139056A (en) * 2007-12-10 2009-06-25 Fuji Industrial Co Ltd Removal device for air pollutant and range hood
TWM423810U (en) * 2011-11-02 2012-03-01 Univ Chaoyang Technology Upward air swirl ventilation hood

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103143542A (en) * 2013-03-19 2013-06-12 苏州市易柯露环保科技有限公司 Vertical gas collection deodorant complete equipment
CN103143542B (en) * 2013-03-19 2015-09-02 苏州市易柯露环保科技有限公司 Vertical gas collection deodorizing complexes
CN104006430A (en) * 2013-12-31 2014-08-27 昆山洛博格机械技术咨询有限公司 Novel bladeless oil smoke exhausting device
CN105180239A (en) * 2015-09-17 2015-12-23 宁波方太厨具有限公司 Kitchen small tornado lampblack sucking system and rotary air curtain generator thereof
CN105180239B (en) * 2015-09-17 2018-08-31 宁波方太厨具有限公司 A kind of small-sized cyclone fume-exhausting system in kitchen and its rotation air curtain generator
CN105928028A (en) * 2016-06-23 2016-09-07 洛阳理工学院 Lampblack exhauster capable of preventing smoke from diffusing
CN106524252A (en) * 2016-11-07 2017-03-22 宁波方太厨具有限公司 Extractor hood
CN106402972A (en) * 2016-11-07 2017-02-15 宁波方太厨具有限公司 Smoke exhauster
CN106524252B (en) * 2016-11-07 2019-11-29 宁波方太厨具有限公司 A kind of range hood
WO2018157664A1 (en) * 2017-02-28 2018-09-07 Lien Fue Sang Fume cyclonic-collection device, range hood, and kitchen fume-extracting and cooking equipment
CN108626837A (en) * 2018-03-05 2018-10-09 中国矿业大学 A kind of pillar balanced ventilation device and method
CN111219759A (en) * 2018-11-27 2020-06-02 宁波方太厨具有限公司 Implementation method for cleaning reminding of range hood
CN110478985A (en) * 2019-08-16 2019-11-22 沈阳工程学院 A kind of degasification dust collecting method based on curtain jet and rotation negative pressure flow field
CN116037361A (en) * 2023-03-31 2023-05-02 河北恒通管件集团有限公司 Cyclone type elbow electrostatic spraying device
CN116037361B (en) * 2023-03-31 2023-08-15 河北恒通管件集团有限公司 Cyclone type elbow electrostatic spraying device

Also Published As

Publication number Publication date
CN102913970B (en) 2015-01-14

Similar Documents

Publication Publication Date Title
CN102913970B (en) Rotary air curtain rang hood with oil fume filter device
CN103181741A (en) Efficient cyclone separation device for dust remover
CN108852172A (en) Spiral dust-gas separation device and gas purification device
CN109595630B (en) Fume exhauster
CN103202680A (en) Dust separation device for improving separation efficiency of dust collector
CN106594834A (en) Rotational flow assisting device of extractor hood
CN101530307B (en) Dust collecting barrel of vacuum cleaner with whirlwind structure
WO2019154314A1 (en) Cyclonic separation apparatus and application thereof
CN108479198A (en) Deduster and cleaner
CN206291282U (en) A kind of range hood
CN105757755B (en) Top-suction type fume exhauster
CN205991536U (en) A kind of environmental protective oil fume extraction apparatus
CN209285371U (en) Spiral dust-gas separation device and gas purification device
CN202947186U (en) Negative pressure type range hood
CN105509113A (en) Air duct system with fume purification function
CN102670132A (en) Cyclone separation dust collecting device
CN103335348B (en) A kind of range hood
CN208493654U (en) Efficient oil mist collector
CN211633085U (en) Cyclone separation device and dust collector
CN203364210U (en) Range hood
CN209107201U (en) Cyclone separation device and gas purification device
CN208340299U (en) A kind of oil-fume separating device
CN102261688A (en) Cyclone cooking hood
CN102772171A (en) Cyclone separator
CN108151102B (en) Spherical range hood with oil fume separator

Legal Events

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
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: Block south of Xiaoshan economic and Technological Development Zone Xiaoshan Hongxing Road District of Hangzhou City, Zhejiang province 311231 No. 98

Patentee after: Hangzhou Deyi electrical Limited by Share Ltd

Address before: 311215 Xiaoshan Economic Development Zone, Zhejiang District, Hangzhou Road No. three, No. 36

Patentee before: DE&E Appliances Co., Ltd.

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 311231 No. 98, Hongxing Road, Qiaonan block, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province

Patentee after: Hangzhou Deyi Zhijia Co.,Ltd.

Address before: 311231 No. 98, Hongxing Road, Qiaonan block, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province

Patentee before: HANGZHOU DE&E ELECTRICAL Co.,Ltd.