CN110685939A - Neck-mounted fan with multiple air outlet modes - Google Patents

Neck-mounted fan with multiple air outlet modes Download PDF

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Publication number
CN110685939A
CN110685939A CN201910973822.0A CN201910973822A CN110685939A CN 110685939 A CN110685939 A CN 110685939A CN 201910973822 A CN201910973822 A CN 201910973822A CN 110685939 A CN110685939 A CN 110685939A
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CN
China
Prior art keywords
neck
shell
air
gear
air outlet
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
CN201910973822.0A
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Chinese (zh)
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CN110685939B (en
Inventor
曲铭凯
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.)
Linyi HaoWu Technology Co.,Ltd.
Original Assignee
Hangzhou Tambu Technology 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
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Application filed by Hangzhou Tambu Technology Co Ltd filed Critical Hangzhou Tambu Technology Co Ltd
Priority to CN201910973822.0A priority Critical patent/CN110685939B/en
Publication of CN110685939A publication Critical patent/CN110685939A/en
Application granted granted Critical
Publication of CN110685939B publication Critical patent/CN110685939B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/522Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/64Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps

Abstract

The invention discloses a neck-hung fan with multiple air outlet modes, which comprises an arc-shaped neck shell capable of being hung on a neck, and air blowing parts which are respectively arranged at two end parts of the neck shell and can blow air into the neck shell or the outside. The neck shell is provided with a plurality of neck air outlet grooves for air outlet. And air deflectors capable of changing the wind direction are respectively and rotatably connected in the neck air outlet grooves. And driving components which are driven by the blowing part and further drive the air guide plates to rotate are respectively arranged at the positions close to the two end parts in the neck shell. The blowing part comprises an impeller seat arranged at the end part of the neck shell, a motor fixedly connected on the impeller seat, a centrifugal impeller fixedly connected on an output shaft of the motor, and a rotating shell rotatably connected on the impeller seat. An air outlet which can be communicated with the inside of the neck shell is arranged on the rotating shell. The shell is rotated through rotation, so that wind can blow to the face or the back, and meanwhile, the wind deflector can be driven to rotate, and the wind direction is changed.

Description

Neck-mounted fan with multiple air outlet modes
Technical Field
The invention belongs to the technical field of fans, and particularly relates to a neck-hung fan with multiple air outlet modes.
Background
Chinese patent document No. CN109579200A discloses a motion mounting device, including: the hanging piece is used for hanging or placing the motion hanging device to a preset position, and a control assembly is arranged in the hanging piece; one end of the connecting pipe is fixedly connected with the hanging piece, the other end of the connecting pipe is fixedly connected with the hanging piece, the connecting pipe is a hose, and the connecting pipe can rotate or bend relative to the hanging piece so as to adjust the angle of the hanging piece. The motion hanging device can be hung on the neck of a human body through the hanging piece, the connecting pipe is a hose, the angle of the hanging piece can be adjusted, and hand operation is not needed.
Above-mentioned patent is when using, and the hose will lead to the hose pine through buckling repeatedly many times, and the most general nature is flagging, unable normal use, and the device only can blow to the user openly simultaneously, can't blow to user's back, and application scope is little.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: to the not enough that prior art exists, provide the neck hanging fan of a many air outlet modes that can blow to user front or back homoenergetic.
In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose: a neck-hung fan with multiple air outlet modes comprises an arc-shaped neck shell capable of being hung on a neck, and air blowing parts which are respectively arranged at two end parts of the neck shell and can blow air into the neck shell or the outside.
A plurality of neck air outlet grooves used for air outlet are formed in the neck shell.
And air deflectors capable of changing the wind direction are respectively and rotatably connected in the neck air outlet grooves.
And driving components which are driven by the blowing part and further drive the air guide plates to rotate are respectively arranged at the positions, close to the two end parts, in the neck shell.
The blowing part comprises an impeller seat arranged at the end part of the neck shell, a motor fixedly connected on the impeller seat, a centrifugal impeller fixedly connected on an output shaft of the motor, and a rotating shell rotatably connected on the impeller seat.
An air outlet which can be communicated with the inside of the neck shell is formed in the rotating shell.
As an optimization scheme: the impeller seat is rotationally connected to the neck shell; the rotating shaft of the impeller seat is not parallel to the rotating shaft of the rotating shell.
As an optimization scheme: and one end of the impeller seat, which is far away from the centrifugal impeller, is rotatably connected with a supporting leg for supporting the neck shell.
As an optimization scheme: and two ends of each air deflector along the direction of the rotating shaft are respectively and fixedly connected with an air deflector gear.
The driving assembly comprises a fixed frame fixedly connected with the position, close to the blowing part, in the neck shell, driven fan blades which are rotatably connected to the fixed frame and driven by airflow generated by the blowing part, and driving gears which are arranged in the neck shell and are in transmission connection with the driven fan blades so as to drive the wind deflector gears to rotate.
As an optimization scheme: a plurality of air guide transmission gears which are respectively in meshing transmission connection with the air guide plate gears are rotatably connected in the neck shell; one end of the air guide transmission gear is formed with an insertion rod; and one of the inserting rods close to the blowing part is in axial sliding connection with the driving gear and can be in transmission connection in the circumferential direction.
When the driving gear moves to the limit position close to the air deflector gear, the driving gear drives the air deflector to rotate.
When the driving gear moves to the limit position far away from the air deflector gear, the driving gear is separated from the plugging rod.
And the neck shell is connected with a sliding block for driving the driving gear to move axially.
As an optimization scheme: one end of the driven fan blade, which is far away from the air blowing part, is fixedly connected with a fan blade gear; the fixed frame is rotatably connected with a transmission gear in meshing transmission connection with the fan blade gear; the diameter of the transmission gear is larger than that of the fan blade gear.
And a second transmission gear in meshed transmission connection with the driving gear is formed at one end of the transmission gear, which is far away from the blowing part.
The diameter of the driving gear is larger than that of the second transmission gear.
As an optimization scheme: a switch is arranged on the outer wall of the neck shell; a storage battery is arranged in the neck shell; the neck shell is internally provided with a controller, and the switch, the storage battery and each motor are respectively electrically connected with the controller.
Compared with the prior art, the invention has the beneficial effects that: when the electric vehicle is used, a user presses the switch, and the controller controls the motor to work.
When the invention needs to blow air to the front of a user, the user hangs the neck shell on the neck, rotates the impeller seat and the rotating shell, so that the air outlet is aligned with the face of the user, and then the face is blown.
When the air blowing device needs to blow air to the back of a user, the user rotates the rotating shell to enable the air outlet to be communicated with the neck shell, the air is blown out from the neck air outlet groove, meanwhile, the driven fan blades are driven to rotate by the air generated by the air blowing part, the air guide plate is driven to rotate, the air outlet direction is changed, and the air blowing range is enlarged.
Then the user can hang the neck shell on the neck, and if the user places the neck air outlet groove upwards, the air blowing part can blow air to the head of the user; if the user places the neck air outlet groove downwards at the moment, the air blowing part can blow air to the back and the shoulders of the user.
When the fan is used as a vertical fan, a user rotates the supporting legs out of the supporting leg mounting grooves, and the fan is enabled to stand on a plane.
In the above process, when the air deflector rotates to a position required by a user, the user moves the sliding block, so that the air deflector is fixed at a certain position.
Drawings
Fig. 1 and 2 are schematic structural diagrams of the present invention.
Fig. 3 is a schematic exploded view of the present invention.
Fig. 4 is a schematic view of the structure of the neck shell of the present invention.
Fig. 5 and 6 are schematic exploded structural views of the blowing section of the present invention.
Fig. 7 is a schematic sectional view of an impeller seat according to the present invention.
Fig. 8 is an exploded view of the rotating housing of the present invention.
Fig. 9 is a schematic structural view of the wind deflector of the present invention.
Fig. 10 is an exploded view of the drive assembly of the present invention.
A. A neck shell; 1a, a neck half shell; 11. a neck air outlet groove; 111. a gear rotating groove; 12. a neck air inlet; 13. a sliding port; 14. a gear rotating seat; B. a blowing section; 2. rotating the housing; 2a, rotating the half shell; 21. an air outlet; 22. an air inlet; 23. positioning a groove; 3. a centrifugal impeller; 4. an impeller seat; 41. a housing connecting portion; 42. a housing rotating sleeve; 421. positioning the convex ring; 43. a housing locating ring; 44. supporting leg mounting grooves; 5. a motor; 6. supporting legs; 7. an air deflector; 71. an air deflector gear; 72. the wind guide transmission gear; 721. a plug rod; 8. a drive assembly; 81. a driven fan blade; 811. a fan blade gear; 82. a fixed mount; 83. a transmission gear; 84. a drive gear; 85. a slider; 851. a swing frame.
Detailed Description
Example 1
As shown in fig. 1 to 10, the neck-hanging fan with multiple air outlets according to the present embodiment includes an arc-shaped neck casing a capable of hanging on the neck, and air blowing portions B respectively disposed at two end portions of the neck casing and capable of blowing air into the neck casing or the outside.
The neck shell is formed with a plurality of neck air outlet grooves 11 for air outlet.
And air deflectors 7 capable of changing the wind direction are respectively and rotatably connected in the neck air outlet grooves.
And the positions in the neck shell close to the two end parts are respectively provided with a driving component 8 which is driven by the blowing part and further drives the air deflector to rotate.
The blowing part comprises an impeller seat 4 arranged at the end part of the neck shell, a motor 5 fixedly connected on the impeller seat, a centrifugal impeller 3 fixedly connected on an output shaft of the motor, and a rotating shell 2 rotatably connected on the impeller seat.
An air outlet 21 which can be communicated with the inside of the neck shell is arranged on the rotating shell.
The impeller seat is rotationally connected to the neck shell; the rotating shaft of the impeller seat is not parallel to the rotating shaft of the rotating shell.
A neck air inlet 12 which is rotatably connected with the impeller seat is formed at the end parts of the two sides of the neck shell; a shell connecting part 41 is formed on the periphery of the impeller seat; a shell rotating sleeve 42 which is rotatably inserted with the neck air inlet is formed at one end of the shell connecting part, which is far away from the motor; the one end shaping that shell connecting portion were kept away from to the casing rotates the cover has the protruding circle 421 of location that neck shells inner wall offseted, the lateral wall that shell connecting portion kept away from motor one end offsets with neck shells outer wall for the impeller seat can be followed neck air intake circumferential direction and rotated, can not break away from neck casing simultaneously.
The lateral wall of one end of the shell connecting part, which is close to the motor, is arc-shaped, and the lateral wall is abutted to the rotating shell.
And a ventilation opening capable of communicating the air outlet with the shell rotating sleeve is formed in the shell connecting part.
When rotating the shell and rotating air outlet and vent intercommunication, the air current can pass through air outlet, vent, casing and rotate the cover and get into in the neck casing, follow the outflow of neck air-out groove afterwards.
And one end of the impeller seat, which is far away from the centrifugal impeller, is rotatably connected with a supporting leg 6 for supporting the neck shell.
And a supporting leg mounting groove 44 for accommodating a supporting leg is formed at one end of the impeller seat, which is far away from the centrifugal impeller.
As shown in fig. 2, the user can rotate the supporting legs out of the supporting leg mounting grooves and stand the present invention on a plane, and at this time, the present invention can be used as a vertical fan to blow air to the user.
Two ends of each air deflector along the direction of the rotating shaft are respectively and fixedly connected with an air deflector gear 71.
A gear rotating groove 111 which is rotationally connected with the air deflector gear is formed on the side wall of each neck air outlet groove along the rotating shaft direction of the air deflector; the circumferential angle corresponding to the gear rotating groove is smaller than 360 degrees, so that the part of the air deflector gear close to the inner part of the neck shell is exposed outside the gear rotating groove.
The driving assembly comprises a fixed frame 82 fixedly connected to the position, close to the blowing part, in the neck shell, driven fan blades 81 which are rotatably connected to the fixed frame and driven by airflow generated by the blowing part, and driving gears 84 which are arranged in the neck shell and are in transmission connection with the driven fan blades so as to drive the wind deflector gears to rotate.
As shown in fig. 1 and 2, each air deflector positioned on the left half side is driven by the left blowing part; the air deflector on the right side is driven by the air blowing part on the right side.
A plurality of air guide transmission gears 72 which are respectively in meshing transmission connection with the air guide plate gears are rotatably connected in the neck shell; an inserting rod 721 is formed at one end of the air guide transmission gear; and one of the inserting rods close to the blowing part is in axial sliding connection with the driving gear and can be in transmission connection in the circumferential direction.
When the driving gear moves to the limit position close to the air deflector gear, the driving gear drives the air deflector to rotate.
When the driving gear moves to the limit position far away from the air deflector gear, the driving gear is separated from the plugging rod.
A sliding block 85 for driving the driving gear to move axially is connected to the neck shell in a sliding manner.
And gear rotating seats 14 which are rotatably connected with the air guide transmission gears are respectively formed at two ends of the inner wall of the neck shell, which are positioned at the air outlet grooves of each neck and along the rotating shaft direction of the air guide plate.
A sliding opening 13 connected with the sliding block in a sliding manner is formed in the side wall of the neck shell; and a swing frame 851 which is inserted into the driving gear to drive the driving gear to move is formed at one end of the sliding block close to the inside of the neck shell.
As shown in fig. 1 and 2, two adjacent driving gears located on the same side are in transmission connection through a universal joint, so that the air deflectors located on the same side can rotate simultaneously.
The user can move the sliding block to further control whether the air deflector rotates.
When the air deflector rotates to the angle required by the user, the user moves the sliding block, so that the sliding block drives the driving gear to move to the limit position far away from the air deflector gear, and the air deflector cannot rotate and is fixed at the position required by the user.
One end of the driven fan blade, which is far away from the air blowing part, is fixedly connected with a fan blade gear 811; the fixed frame is rotatably connected with a transmission gear 83 which is in meshing transmission connection with the fan blade gear; the diameter of the transmission gear is larger than that of the fan blade gear.
And a second transmission gear in meshed transmission connection with the driving gear is formed at one end of the transmission gear, which is far away from the blowing part.
The diameter of the driving gear is larger than that of the second transmission gear.
The wind blowing part blows in the neck shell drives the driven fan blades to rotate, and drives the air deflector to rotate after the speed of the transmission gear is reduced.
The rotating shell is cylindrical; an air inlet 22 for air inlet is formed on the end surface of the rotating shell far away from the impeller seat; the air outlet is formed in the side wall of the rotating shell.
The neck shell comprises two symmetrically arranged neck half shells 1 a; the neck air outlet groove is arranged on one neck half shell.
A bolt positioning sleeve for placing a bolt is formed in each neck half shell; the two neck half shells are fixedly connected together through bolts.
Semicircular through holes are formed in the side walls of the two end parts of the neck half shell; two through holes on different neck half shells form a neck air inlet.
The rotating shell comprises two symmetrically arranged semicircular rotating half shells 2 a; the air outlet is formed in one of the rotating half-shells.
Positioning grooves 23 arranged along the circumferential direction are formed in the positions, close to the impeller seat, of the inner wall of each rotating half shell; and a positioning convex ring 421 with an L-shaped section and rotatably inserted into the positioning groove is formed at one end of the impeller seat close to the rotating half shell along the circumferential direction.
Bolt positioning holes are formed in the side wall of the rotating half shell; the two rotating half shells are fixedly connected together through bolts.
A switch is arranged on the outer wall of the neck shell; a storage battery is arranged in the neck shell; the neck shell is internally provided with a controller, and the switch, the storage battery and each motor are respectively electrically connected with the controller.
When the electric vehicle is used, a user presses the switch, and the controller controls the motor to work.
When the invention needs to blow air to the front of a user, the user hangs the neck shell on the neck, rotates the impeller seat and the rotating shell, so that the air outlet is aligned with the face of the user, and then the face is blown.
When the air blowing device needs to blow air to the back of a user, the user rotates the rotating shell to enable the air outlet to be communicated with the neck shell, the air is blown out from the neck air outlet groove, meanwhile, the driven fan blades are driven to rotate by the air generated by the air blowing part, the air guide plate is driven to rotate, the air outlet direction is changed, and the air blowing range is enlarged.
Then the user can hang the neck shell on the neck, and if the user places the neck air outlet groove upwards, the air blowing part can blow air to the head of the user; if the user places the neck air outlet groove downwards at the moment, the air blowing part can blow air to the back and the shoulders of the user.
When the fan is used as a vertical fan, a user rotates the supporting legs out of the supporting leg mounting grooves, and the fan is enabled to stand on a plane.
In the above process, when the air deflector rotates to a position required by a user, the user moves the sliding block, so that the air deflector is fixed at a certain position.
The principle that the controller controls the motors to work through the input information of the switches and the specific circuit structure are easy to realize in the prior art, and are not described in detail herein.

Claims (7)

1. The utility model provides a neck hanging fan of many air outlet modes which characterized in that: the neck shell comprises an arc-shaped neck shell capable of being hung on a neck, and blowing parts which are respectively arranged at two end parts of the neck shell and can blow air into the neck shell or the outside;
a plurality of neck air outlet grooves for air outlet are formed on the neck shell;
the neck air outlet grooves are respectively and rotatably connected with air deflectors capable of changing the wind direction;
the positions, close to the two end parts, in the neck shell are respectively provided with a driving component which is driven by the blowing part and further drives the air deflector to rotate;
the blowing part comprises an impeller seat arranged at the end part of the neck shell, a motor fixedly connected to the impeller seat, a centrifugal impeller fixedly connected to an output shaft of the motor, and a rotating shell rotatably connected to the impeller seat;
an air outlet which can be communicated with the inside of the neck shell is formed in the rotating shell.
2. The neck-mounted fan with multiple air outlets of claim 1, wherein: the impeller seat is rotationally connected to the neck shell; the rotating shaft of the impeller seat is not parallel to the rotating shaft of the rotating shell.
3. The neck-mounted fan with multiple air outlets of claim 1, wherein: and one end of the impeller seat, which is far away from the centrifugal impeller, is rotatably connected with a supporting leg for supporting the neck shell.
4. The neck-mounted fan with multiple air outlets of claim 1, wherein: two ends of each air deflector along the direction of the rotating shaft are respectively and fixedly connected with an air deflector gear;
the driving assembly comprises a fixed frame fixedly connected with the position, close to the blowing part, in the neck shell, driven fan blades which are rotatably connected to the fixed frame and driven by airflow generated by the blowing part, and driving gears which are arranged in the neck shell and are in transmission connection with the driven fan blades so as to drive the wind deflector gears to rotate.
5. The neck-hung fan with multiple air outlets of claim 4, wherein: a plurality of air guide transmission gears which are respectively in meshing transmission connection with the air guide plate gears are rotatably connected in the neck shell; one end of the air guide transmission gear is formed with an insertion rod; one plug-in rod close to the blowing part is axially connected with the driving gear in a sliding manner and can be in transmission connection in the circumferential direction;
when the driving gear moves to the limit position close to the air deflector gear, the driving gear drives the air deflector to rotate;
when the driving gear moves to the limit position far away from the air deflector gear, the driving gear is separated from the inserting rod;
and the neck shell is connected with a sliding block for driving the driving gear to move axially.
6. The neck-hung fan with multiple air outlet modes as claimed in claim 5, wherein: one end of the driven fan blade, which is far away from the air blowing part, is fixedly connected with a fan blade gear; the fixed frame is rotatably connected with a transmission gear in meshing transmission connection with the fan blade gear; the diameter of the transmission gear is larger than that of the fan blade gear;
a second transmission gear in meshed transmission connection with the driving gear is formed at one end, far away from the blowing part, of the transmission gear;
the diameter of the driving gear is larger than that of the second transmission gear.
7. The neck-mounted fan with multiple air outlets of claim 1, wherein: a switch is arranged on the outer wall of the neck shell; a storage battery is arranged in the neck shell; the neck shell is internally provided with a controller, and the switch, the storage battery and each motor are respectively electrically connected with the controller.
CN201910973822.0A 2019-10-14 2019-10-14 Neck-mounted fan with multiple air outlet modes Active CN110685939B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201910973822.0A CN110685939B (en) 2019-10-14 2019-10-14 Neck-mounted fan with multiple air outlet modes

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CN110685939B CN110685939B (en) 2021-05-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111794994A (en) * 2020-07-03 2020-10-20 珠海格力电器股份有限公司 Hanging neck type fan and control method and controller thereof
CN112160929A (en) * 2020-09-22 2021-01-01 刘月月 Hang neck fan
WO2021143888A1 (en) * 2020-01-18 2021-07-22 深圳市蓝禾技术有限公司 Neck-hanging fan
WO2021142983A1 (en) * 2020-01-19 2021-07-22 深圳市蓝禾技术有限公司 Neck-mounted fan
WO2021142982A1 (en) * 2020-01-19 2021-07-22 深圳市蓝禾技术有限公司 Neck fan
US11187241B1 (en) 2020-05-13 2021-11-30 Shenzhen Lanhe Technologies Co., Ltd. Portable blowing device
WO2022083519A1 (en) * 2020-10-20 2022-04-28 深圳市蓝禾技术有限公司 Neck fan

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Publication number Priority date Publication date Assignee Title
CN87213715U (en) * 1987-09-23 1988-06-29 秦有恩 Guiding wind plate pendulum angle-adjustable fan
CN2114047U (en) * 1991-11-02 1992-08-26 徐怀宇 Fluid-driven electric fan
CN202811424U (en) * 2012-09-12 2013-03-20 王浩彬 Multidirectional wide angle electric fan
KR20150032686A (en) * 2015-03-09 2015-03-27 재단법인 중소조선연구원 Device for guiding impeller suction of centrifugal pump
KR101834138B1 (en) * 2017-11-10 2018-03-02 조성아 Neck band type portable blower, and blowing system using the blower
CN108050087A (en) * 2017-12-07 2018-05-18 桂林理工大学 A kind of small-sized double steering high pressure positive blower

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87213715U (en) * 1987-09-23 1988-06-29 秦有恩 Guiding wind plate pendulum angle-adjustable fan
CN2114047U (en) * 1991-11-02 1992-08-26 徐怀宇 Fluid-driven electric fan
CN202811424U (en) * 2012-09-12 2013-03-20 王浩彬 Multidirectional wide angle electric fan
KR20150032686A (en) * 2015-03-09 2015-03-27 재단법인 중소조선연구원 Device for guiding impeller suction of centrifugal pump
KR101834138B1 (en) * 2017-11-10 2018-03-02 조성아 Neck band type portable blower, and blowing system using the blower
CN108050087A (en) * 2017-12-07 2018-05-18 桂林理工大学 A kind of small-sized double steering high pressure positive blower

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021143888A1 (en) * 2020-01-18 2021-07-22 深圳市蓝禾技术有限公司 Neck-hanging fan
WO2021142983A1 (en) * 2020-01-19 2021-07-22 深圳市蓝禾技术有限公司 Neck-mounted fan
WO2021142982A1 (en) * 2020-01-19 2021-07-22 深圳市蓝禾技术有限公司 Neck fan
US11187241B1 (en) 2020-05-13 2021-11-30 Shenzhen Lanhe Technologies Co., Ltd. Portable blowing device
CN111794994A (en) * 2020-07-03 2020-10-20 珠海格力电器股份有限公司 Hanging neck type fan and control method and controller thereof
CN112160929A (en) * 2020-09-22 2021-01-01 刘月月 Hang neck fan
WO2022083519A1 (en) * 2020-10-20 2022-04-28 深圳市蓝禾技术有限公司 Neck fan

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