CN105864077A - Low-noise safety electric fan - Google Patents

Low-noise safety electric fan Download PDF

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Publication number
CN105864077A
CN105864077A CN201610422080.9A CN201610422080A CN105864077A CN 105864077 A CN105864077 A CN 105864077A CN 201610422080 A CN201610422080 A CN 201610422080A CN 105864077 A CN105864077 A CN 105864077A
Authority
CN
China
Prior art keywords
air
air outlet
air inlet
housing
face cover
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.)
Withdrawn
Application number
CN201610422080.9A
Other languages
Chinese (zh)
Inventor
不公告发明人
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201610422080.9A priority Critical patent/CN105864077A/en
Publication of CN105864077A publication Critical patent/CN105864077A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/165—Axial entry and discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
    • F04F5/46—Arrangements of nozzles
    • F04F5/462—Arrangements of nozzles with provisions for cooling the fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)

Abstract

The invention discloses a low-noise safety electric fan. The low-noise safety electric fan comprises an air inlet component, an air outlet cover and electric cooling sheets; the air outlet cover is provided with an air inlet hole, air guide passages and air outlet slots, the air inlet hole is formed in the center of the back surface of the air outlet cover, and the air outlet slots are formed in the front surface of the air outlet cover; the air inlet component comprises a shell, a suction fan and an air passage, and the suction fan and the air passage are arranged in the shell; one end of the shell is provided with a mesh plate serving as an air inlet of the air passage, and the other end of the shell is provided with an air outlet of the air passage; the air outlet of the air passage is communicated with the air inlet hole of the air outlet cover; a mounting portion is arranged at the air inlet hole of the air outlet covers, and one end, with the air outlet of the air passage, of the shell is fixed in the mounting portion; the electric cooling sheets are arranged in the air passage and adjacent to the mesh plate; the suction fan is a turbine fan with turbine blades. The low-noise safety electric fan has advantages of low noise, high air output and realization of refrigeration.

Description

The safe electric fan that noise is less
Technical field
The invention belongs to fan structure design field, be specifically related to the safe electric fan that a kind of noise is less.
Background technology
Presently commercially available Safety far without blade profile, including base and the annular air face shield being arranged on base, is provided with the air draught assembly based on turbine type blower fan in base；The great advantage of this fan is owing to obviating the flabellum used by tradition electric fan, from regardless of whether adult or child are respectively provided with fabulous safety.But this fan there is also following weak point: in order to avoid huge too fat to move, use the base of small diameter, so limiting the size of turbine type blower fan, in order to ensure enough air outputs, the rotating speed of turbine type blower fan is higher, commonly reach hundreds of to thousands of turn per second, cause noise very big, and be difficult to eradicate；Further, since the diameter of turbine type blower fan is the least, although its rotating speed is the highest, but air output still can not be compared with conventional fan, and airflow effects is the best.
Summary of the invention
It is an object of the invention to provide the safe electric fan that a kind of noise is less and air output is bigger.
The technical scheme realizing the object of the invention is: the safe electric fan that a kind of noise is less, including air intake assembly and air outlet face cover；Air outlet face cover is provided with fresh air inlet, air-guiding aisle and air-out slot；Fresh air inlet is arranged on the center, the back side of air outlet face cover, and air-out slot is arranged on the front of air outlet face cover；Air intake assembly includes housing, arranges induced-draught fan in the housing, setting air channel in the housing；It is characterized in that: also including cold of electricity, one end of housing is provided with the mesh plate as air inlet of air duct, and the other end of housing is provided with duct outlet；Duct outlet connects with air outlet face cover fresh air inlet；Being provided with installation portion at air outlet face cover fresh air inlet, housing is provided with one end of duct outlet and is fixed in this installation portion；In cold of electricity is arranged on air channel and at adjacent mesh plate；Induced-draught fan is the turbofan with turbine flabellum；The shape of the periphery wall of the turbine flabellum of turbofan is circular cone shape；The shell of turbofan is provided with tapered wall on the periphery wall of a side of adjacent turbine flabellum, and the external diameter of one end that this tapered wall adjoins turbine flabellum is less, and the external diameter away from one end of turbine flabellum is bigger；The taper hole that the center of turbine flabellum is provided with and this tapered wall is adaptive；The basic configuration of air-out slot is arc shaped, leaves spacing between each air-out slot.
The present invention is by improving air draught assembly so that it is have that noise is less and air output is relatively big, and the advantage that can freeze.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is a kind of front view of air draught assembly shown in Fig. 1.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of for air suction assembly for safety type electric fan, as shown in Fig. 1 and Fig. 2, including air intake assembly 1 and air outlet face cover 2；Air outlet face cover is provided with fresh air inlet 21, air-guiding aisle 22 and air-out slot 23；Fresh air inlet is arranged on the center, the back side of air outlet face cover, and air-out slot is arranged on the front of air outlet face cover；Air intake assembly includes housing 11, arranges induced-draught fan 12 in the housing, setting air channel 13 in the housing；One end of housing is provided with the mesh plate 14 as air inlet of air duct, and the other end of housing is provided with duct outlet 15；Duct outlet connects with air outlet face cover fresh air inlet；Being provided with installation portion 24 at air outlet face cover fresh air inlet, housing is provided with one end of duct outlet and is fixed in this installation portion,.
Housing is provided with between the outer wall of one end of duct outlet and the inwall of air outlet face cover installation portion and is provided with sealing ring 4.
Described induced-draught fan is turbofan or the fan with flabellum.Used by the present embodiment is the turbofan with turbine flabellum 121, but it is also feasible for selecting conventional fan, and can effectively reduce noise.
The present embodiment also includes multiple electricity cold 3；In cold of electricity is arranged on air channel and at adjacent mesh plate；In concrete practice, it is possible in being arranged on air outlet face cover by cold for electricity and at adjacent duct outlet.
The basic configuration of air-out slot is arc shaped, leaves spacing between each air-out slot.
Air-out slot is arranged in ring-type outer wind outlet area 25 and interior wind outlet area 26 in air outlet face cover.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the obvious change that these connotations belonging to the present invention are extended out or variation still fall within protection scope of the present invention.

Claims (1)

1. the safe electric fan that noise is less, including air intake assembly and air outlet face cover；Air outlet face cover is provided with fresh air inlet, air-guiding aisle and air-out slot；Fresh air inlet is arranged on the center, the back side of air outlet face cover, and air-out slot is arranged on the front of air outlet face cover；Air intake assembly includes housing, arranges induced-draught fan in the housing, setting air channel in the housing；It is characterized in that: also including cold of electricity, one end of housing is provided with the mesh plate as air inlet of air duct, and the other end of housing is provided with duct outlet；Duct outlet connects with air outlet face cover fresh air inlet；Being provided with installation portion at air outlet face cover fresh air inlet, housing is provided with one end of duct outlet and is fixed in this installation portion；In cold of electricity is arranged on air channel and at adjacent mesh plate；Induced-draught fan is the turbofan with turbine flabellum；The shape of the periphery wall of the turbine flabellum of turbofan is circular cone shape；The shell of turbofan is provided with tapered wall on the periphery wall of a side of adjacent turbine flabellum, and the external diameter of one end that this tapered wall adjoins turbine flabellum is less, and the external diameter away from one end of turbine flabellum is bigger；The taper hole that the center of turbine flabellum is provided with and this tapered wall is adaptive；The basic configuration of air-out slot is arc shaped, leaves spacing between each air-out slot.
CN201610422080.9A 2013-08-28 2013-08-28 Low-noise safety electric fan Withdrawn CN105864077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610422080.9A CN105864077A (en) 2013-08-28 2013-08-28 Low-noise safety electric fan

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310380468.3A CN103410768B (en) 2013-08-28 2013-08-28 Safe electric fan
CN201610422080.9A CN105864077A (en) 2013-08-28 2013-08-28 Low-noise safety electric fan

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201310380468.3A Division CN103410768B (en) 2013-08-28 2013-08-28 Safe electric fan

Publications (1)

Publication Number Publication Date
CN105864077A true CN105864077A (en) 2016-08-17

Family

ID=49603801

Family Applications (6)

Application Number Title Priority Date Filing Date
CN201610412591.2A Withdrawn CN105864075A (en) 2013-08-28 2013-08-28 Safety electric fan with high air outlet volumes
CN201610422080.9A Withdrawn CN105864077A (en) 2013-08-28 2013-08-28 Low-noise safety electric fan
CN201610411012.2A Active CN105927513B (en) 2013-08-28 2013-08-28 A kind of biggish safe electric fan of air output
CN201610410584.9A Withdrawn CN105971903A (en) 2013-08-28 2013-08-28 Safe electric fan with refrigerating function
CN201310380468.3A Active CN103410768B (en) 2013-08-28 2013-08-28 Safe electric fan
CN201610412571.5A Withdrawn CN105971904A (en) 2013-08-28 2013-08-28 Safe low-noise electric fan

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201610412591.2A Withdrawn CN105864075A (en) 2013-08-28 2013-08-28 Safety electric fan with high air outlet volumes

Family Applications After (4)

Application Number Title Priority Date Filing Date
CN201610411012.2A Active CN105927513B (en) 2013-08-28 2013-08-28 A kind of biggish safe electric fan of air output
CN201610410584.9A Withdrawn CN105971903A (en) 2013-08-28 2013-08-28 Safe electric fan with refrigerating function
CN201310380468.3A Active CN103410768B (en) 2013-08-28 2013-08-28 Safe electric fan
CN201610412571.5A Withdrawn CN105971904A (en) 2013-08-28 2013-08-28 Safe low-noise electric fan

Country Status (1)

Country Link
CN (6) CN105864075A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106996380B (en) * 2017-03-09 2023-07-07 珠海格力电器股份有限公司 Air supply device
CN109122797B (en) * 2018-08-08 2024-03-15 唐山挨个来食品有限公司 Poultry cooked meat product segmentation packaging machine capable of preventing bone slag adhesion
CN110360475A (en) * 2019-08-09 2019-10-22 佛山市清源科技有限公司 Lighting device with mute Wind Volume air channel structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2309450Y (en) * 1997-06-24 1999-03-03 简登炤 Electric fan capable of cold and hot air switching
CN202023756U (en) * 2011-05-09 2011-11-02 福州核心电子科技有限公司 Bladeless fan
CN102242737A (en) * 2011-08-15 2011-11-16 李耀强 Bladeless fan with double air nozzles
CN102348510A (en) * 2009-03-13 2012-02-08 价美公司 Device for spraying a fluid using the air blast effect
CN102900656A (en) * 2010-12-17 2013-01-30 任文华 Bladeless fan device
CN102966932A (en) * 2011-08-29 2013-03-13 杨泰和 Electric axial-flow fan having turbine type waterproof enclosure and application thereof

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010100462A1 (en) * 2009-03-04 2010-09-10 Dyson Technology Limited Humidifying apparatus
CN201650800U (en) * 2010-03-17 2010-11-24 李永海 Bladeless electric fan
CN102865214A (en) * 2010-12-17 2013-01-09 任文华 Vaneless fan device
TWM411477U (en) * 2011-01-28 2011-09-11 Zhong Qin Technology Co Ltd Frame of bladeless fan
JP5879502B2 (en) * 2011-03-29 2016-03-08 パナソニックＩｐマネジメント株式会社 Cool air machine
CN102889250A (en) * 2011-07-17 2013-01-23 任文华 Bladeless fan
CN202228443U (en) * 2011-08-15 2012-05-23 任文华 Bladeless fan
JP5838296B2 (en) * 2011-09-01 2016-01-06 パナソニックＩｐマネジメント株式会社 Blower
GB2499041A (en) * 2012-02-06 2013-08-07 Dyson Technology Ltd Bladeless fan including an ionizer
CN202789597U (en) * 2012-06-01 2013-03-13 邱凌众 Vaneless fan
CN202900773U (en) * 2012-10-18 2013-04-24 宁波时荣电器科技有限公司 Air outlet structure of bladeless fan
CN203067310U (en) * 2012-11-01 2013-07-17 魏利 Cold and heat changing-over type bladeless fan

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2309450Y (en) * 1997-06-24 1999-03-03 简登炤 Electric fan capable of cold and hot air switching
CN102348510A (en) * 2009-03-13 2012-02-08 价美公司 Device for spraying a fluid using the air blast effect
CN102900656A (en) * 2010-12-17 2013-01-30 任文华 Bladeless fan device
CN202023756U (en) * 2011-05-09 2011-11-02 福州核心电子科技有限公司 Bladeless fan
CN102242737A (en) * 2011-08-15 2011-11-16 李耀强 Bladeless fan with double air nozzles
CN102966932A (en) * 2011-08-29 2013-03-13 杨泰和 Electric axial-flow fan having turbine type waterproof enclosure and application thereof

Also Published As

Publication number Publication date
CN103410768B (en) 2016-08-31
CN105927513B (en) 2019-03-26
CN105864075A (en) 2016-08-17
CN105927513A (en) 2016-09-07
CN105971903A (en) 2016-09-28
CN105971904A (en) 2016-09-28
CN103410768A (en) 2013-11-27

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Application publication date: 20160817