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WO2017045577A1 - Dispositif de soufflage d'air - Google Patents

Dispositif de soufflage d'air Download PDF

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Publication number
WO2017045577A1
WO2017045577A1 PCT/CN2016/098754 CN2016098754W WO2017045577A1 WO 2017045577 A1 WO2017045577 A1 WO 2017045577A1 CN 2016098754 W CN2016098754 W CN 2016098754W WO 2017045577 A1 WO2017045577 A1 WO 2017045577A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
blowing device
air inlet
fan
motor
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.)
Ceased
Application number
PCT/CN2016/098754
Other languages
English (en)
Chinese (zh)
Inventor
喻学锋
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.)
Positec Power Tools Suzhou Co Ltd
Original Assignee
Positec Power Tools Suzhou 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 Positec Power Tools Suzhou Co Ltd filed Critical Positec Power Tools Suzhou Co Ltd
Publication of WO2017045577A1 publication Critical patent/WO2017045577A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles

Definitions

  • the invention relates to a blowing device.
  • the hair dryer is a relatively common tool, usually used to clean the surface of large areas such as gardens or streets, or the surface of the garbage. Compared with the traditional broom or scorpion, the cleaning efficiency is greatly improved, and the labor can be saved. And thus it is widely used.
  • the device consists essentially of an air passage that directs air movement, the air passage including an air inlet at one end of the air passage, the end portion being generally located adjacent to the user; the air passage further includes an air outlet at the other end of the air passage, the end portion Usually located away from the user; and a fan located in the middle of the air passage.
  • the fan can usually be an axial fan or a centrifugal fan. The fan draws in air from the air inlet and then discharges it outward from the air outlet.
  • the patent document US20080127448 describes a hair dryer provided with a centrifugal fan.
  • a centrifugal fan is heavier in weight, has a large energy consumption, and has a relatively large operational noise.
  • direct noise pollution is generated to the surrounding environment and the user as the fan rotates and air passes through obstacles in the airflow.
  • noise pollution usually affects the health of the user, resulting in the user having to wear some hearing protection devices, such as earplugs, helmets and the like.
  • the air inlet portion and the air outlet portion are mounted on the rotation axis of the fan constituted by a plurality of augers connected to each other by the driving of the electric motor.
  • the noise of this device is still relatively high and the performance is average.
  • the technical solution adopted by the present invention is: a blowing device comprising a casing, the casing is provided with an air inlet, air is introduced from the air inlet; and a motor is located inside the casing; An axial flow fan, driven by the motor to rotate along a fan axis and generate an air flow; a blowing pipe connecting the casing and having an air outlet, the air flow is blown out from the air outlet, wherein the casing further includes a body edge An air flow passage extending in a direction of the fan axis, the air inlet defined by the air flow passage in the air blowing Oriented downward when the machine is in the working position.
  • the motor is located in a downstream region of the axial fan.
  • the centerline of the air inlet forms an angle of 90 degrees with the fan axis.
  • the motor is disposed in the air flow passage and disposed adjacent to the air inlet.
  • the air flow passage includes a bottom wall through which the fan axis passes and side walls disposed in parallel along a direction in which the fan axis extends, and the air inlet is disposed on the side wall.
  • the blowing device further comprises a handle for gripping, the handle being disposed above the air inlet.
  • the air blowing device further includes a motor cover that wraps the motor, and the air flow passage is formed between the motor cover and the housing.
  • the blower further includes a cooling passage connecting the inside of the motor cover, the cooling passage being disposed independently of the air flow passage.
  • the cooling passage includes a cooling port on the casing, and the cooling port is disposed separately from the air inlet.
  • the hair dryer has two working modes of at least a blowing mode and a suction mode, wherein in the blowing mode, the axial fan rotates in a first direction, and air enters from the air inlet and is blown out from the air outlet, sucking In the mode, the axial fan rotates in a second direction, and air enters from the air outlet and blows out from the air inlet.
  • the invention has the beneficial effects that the air inlet is facing downwards in the working position, that is, facing the ground, so that the generated noise is far away from the worker, thereby reducing noise.
  • Figure 1 is a schematic view of a hair dryer of a first embodiment of the present invention.
  • Figure 2 is a schematic illustration of the hair dryer of Figure 1 in a working position.
  • Figure 3 is a schematic view of a hair dryer in accordance with a second embodiment of the present invention.
  • the blowing device 1 mainly comprises a main body 2 and a duct 3 connecting the main bodies 2.
  • the duct 3 is detachably connected to the body 2.
  • the duct 3 can be stored separately from the main body 2, facilitating convenient storage and reducing the size of the floor.
  • the main body 2 is provided with an interface 21 having a contour shape similar to that of the air duct, so that the air duct 3 is connected to the main body 2 through the interface 21.
  • the duct 3 and the main body 2 constitute an air flow passage 4.
  • the air flow passage 4 includes an air inlet 41 at the end of the passage, an air outlet 42 and a fan 43 located in the middle of the passage.
  • the air inlet 41 is provided on the main body 2 and is located at one end close to the user.
  • the air outlet 42 is disposed on the air duct 3 and is located at an end away from the user. Air enters the air flow passage 4 from the air inlet 41 and is blown out from the air outlet 42.
  • the main body 2 includes a housing 22, and the interface 21 and the air inlet 41 are both disposed on the housing 22.
  • the fan 43 is located inside the casing 22, and the fan 43 is disposed between the air inlet 41 and the air outlet 42.
  • the fan 43 is an axial fan.
  • the axial fan rotates about a fan axis 44 and the fan 43 rotates to form a plane of rotation P of a vertical fan axis 44.
  • the air inlet 41 and the air outlet 42 are respectively located on opposite sides of the plane of rotation P. It is considered that air enters from the air inlet 41 and passes through the fan 43, and then passes out from the air outlet 42. Therefore, the air inlet 41 is located on one side of the upstream region belonging to the rotational plane P, and the air outlet 42 is located on one side of the downstream region belonging to the rotational plane P.
  • a motor 5 that drives the rotation of the fan is also provided in the housing 22.
  • the motor 5 is directly connected to the fan 43 and provides rotational power.
  • the motor 5 is located in the upstream region of the axial fan, so that the motor 5 and the air inlet 41 are located on the same side of the axial fan.
  • the motor 5 is disposed close to the air inlet 41.
  • the motor 5 is supplied by a battery pack that can be inserted into the air blower 1 or an AC power cord. Electricity.
  • the air outlet 41 is aligned with the ground, so that the airflow blown from the air outlet 42 can effectively reach the ground.
  • the air inlet 41 is oriented downward.
  • the handle 7 of the blowing device 1 is located above the air inlet 41 and is oriented upwards. The handle 7 allows the user to hold the blowing device 1 in the hand and orient the duct 3 towards the area to be cleaned.
  • the air flow passage 4 also includes a linear duct 45 located in the upstream region of the axial flow fan.
  • the linear duct 45 is linear in its entirety and extends in the fan axis 43 direction of the fan. It includes a bottom wall 46 that is passed through the fan axis 44, and two side walls 47 that connect the bottom wall 46, respectively.
  • the two side walls 47 are disposed generally parallel to the fan axis 44, and the side walls 47 and the bottom wall 46 generally form a U-shape.
  • the air inlet 41 is provided on the side wall 47.
  • the fan axis 44 does not pass through the air inlet 41.
  • the centerline of the air inlet 41 is disposed at an angle to the fan axis 44, and the angle ranges from 60 degrees to 120 degrees. Preferably, the angle is 90 degrees.
  • the inner surfaces of the side wall 47 and the bottom wall 46 are constructed without any rough smooth surface, so that the air sucked from the air inlet can be prevented from generating turbulence when flowing, which is advantageous for reducing the noise generated by the suction.
  • a safety shield 6 is also provided in the vicinity of the air inlet 41 of the air blowing device 1.
  • the safety shield 6 has a grille for preventing foreign matter from entering the air inlet 41.
  • the safety shield 6 may have a curved shape or a planar shape depending on the shape of the air inlet 41.
  • a handle portion for operation is also provided on the safety shield 6.
  • the safety shield 6 is operatively pivoted to open or close the air inlet 41.
  • the safety shield 6 can also be connected to the air inlet 41 in a disassembled manner.
  • the blowing device 1 further comprises a motor cover 51 encasing the motor 5.
  • An air flow passage 4 is formed between the motor cover 51 and the housing 22.
  • the air flow passage 4 is located between the motor cover 51 and the housing 22.
  • the blowing device 1 further includes a cooling passage 52 connected to the inside of the motor cover 51, and the cooling passage 52 is provided independently of the air flow passage 4.
  • the cooling passage 52 further includes a cooling port 53 on the housing 22, and the cooling port 53 is provided separately from the air inlet 41. In the present embodiment, the cooling port 53 is located at the bottom wall 46.
  • the blowing device 1 has at least two operating modes of a blowing mode and a suction mode, wherein in the blowing mode, the axial fan rotates in the first direction, and air enters from the air inlet 41 and is blown out from the air outlet 42. In the suction mode, the axial fan rotates in the second direction, and air enters from the air outlet 42 and Blowed out from the air inlet 41.
  • the first direction is opposite to the second direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un dispositif de soufflage d'air (1) qui comprend : un boîtier (22), une entrée d'air (41) disposée sur le boîtier (22), et l'air entrant depuis l'entrée d'air (41) ; un moteur (5) situé à l'intérieur du boîtier (22) ; un ventilateur à écoulement axial (43), entraîné par le moteur (5), tournant le long d'un axe (44) du ventilateur à écoulement axial (43), et générant un écoulement d'air ; et un tuyau de soufflage d'air (3) relié au boîtier (22) et ayant une sortie d'air (42), l'écoulement d'air étant soufflé depuis la sortie d'air (42). Le boîtier (22) comprend en outre un canal d'écoulement d'air (4) s'étendant dans la direction d'axe du ventilateur à écoulement axial (43), et l'entrée d'air (41) définie par le canal d'écoulement d'air (4) est orientée vers le bas lorsque le dispositif de soufflage d'air (1) est dans une position de travail.
PCT/CN2016/098754 2015-09-18 2016-09-12 Dispositif de soufflage d'air Ceased WO2017045577A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201520728493.0 2015-09-18
CN201520728493.0U CN205134254U (zh) 2015-09-18 2015-09-18 吹风装置

Publications (1)

Publication Number Publication Date
WO2017045577A1 true WO2017045577A1 (fr) 2017-03-23

Family

ID=55620061

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/098754 Ceased WO2017045577A1 (fr) 2015-09-18 2016-09-12 Dispositif de soufflage d'air

Country Status (2)

Country Link
CN (1) CN205134254U (fr)
WO (1) WO2017045577A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108978554A (zh) * 2017-06-01 2018-12-11 苏州宝时得电动工具有限公司 吹吸装置
CN109577254A (zh) * 2017-09-29 2019-04-05 南京德朔实业有限公司 吹风机
CN110158522A (zh) * 2019-06-18 2019-08-23 常州格力博有限公司 吹风机
CN113737692A (zh) * 2020-05-28 2021-12-03 苏州宝时得电动工具有限公司 吹风机及风管机构
WO2022247924A1 (fr) * 2021-05-27 2022-12-01 苏州宝时得电动工具有限公司 Soufflante d'air

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205134254U (zh) * 2015-09-18 2016-04-06 苏州宝时得电动工具有限公司 吹风装置
CN105821789A (zh) * 2016-04-25 2016-08-03 常州格力博有限公司 吹风机
CN207325409U (zh) * 2016-06-13 2018-05-08 苏州宝时得电动工具有限公司 手持式清理装置
CN110644402B (zh) * 2018-06-26 2022-01-04 南京德朔实业有限公司 吹吸机
CN211898097U (zh) 2020-02-26 2020-11-10 创科无线普通合伙 吹风机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5031277A (en) * 1989-11-02 1991-07-16 Coker Darby T Debris collecting and bagging apparatus
CN102606494A (zh) * 2010-12-16 2012-07-25 安德烈亚斯.斯蒂尔两合公司 带有电驱动马达的鼓风机
CN103572725A (zh) * 2012-08-03 2014-02-12 苏州宝时得电动工具有限公司 吹风装置
CN103658107A (zh) * 2012-09-26 2014-03-26 苏州宝时得电动工具有限公司 吹风机及吹吸机
CN104420431A (zh) * 2013-08-28 2015-03-18 苏州宝时得电动工具有限公司 吹风装置
CN105442478A (zh) * 2014-11-28 2016-03-30 苏州宝时得电动工具有限公司 吹风机
CN205134254U (zh) * 2015-09-18 2016-04-06 苏州宝时得电动工具有限公司 吹风装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5031277A (en) * 1989-11-02 1991-07-16 Coker Darby T Debris collecting and bagging apparatus
CN102606494A (zh) * 2010-12-16 2012-07-25 安德烈亚斯.斯蒂尔两合公司 带有电驱动马达的鼓风机
CN103572725A (zh) * 2012-08-03 2014-02-12 苏州宝时得电动工具有限公司 吹风装置
CN103658107A (zh) * 2012-09-26 2014-03-26 苏州宝时得电动工具有限公司 吹风机及吹吸机
CN104420431A (zh) * 2013-08-28 2015-03-18 苏州宝时得电动工具有限公司 吹风装置
CN105442478A (zh) * 2014-11-28 2016-03-30 苏州宝时得电动工具有限公司 吹风机
CN205134254U (zh) * 2015-09-18 2016-04-06 苏州宝时得电动工具有限公司 吹风装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108978554A (zh) * 2017-06-01 2018-12-11 苏州宝时得电动工具有限公司 吹吸装置
CN108978554B (zh) * 2017-06-01 2024-03-15 苏州宝时得电动工具有限公司 吹吸装置
CN109577254A (zh) * 2017-09-29 2019-04-05 南京德朔实业有限公司 吹风机
CN109577254B (zh) * 2017-09-29 2024-03-19 南京泉峰科技有限公司 吹风机
CN110158522A (zh) * 2019-06-18 2019-08-23 常州格力博有限公司 吹风机
CN110158522B (zh) * 2019-06-18 2024-04-12 格力博(江苏)股份有限公司 吹风机
CN113737692A (zh) * 2020-05-28 2021-12-03 苏州宝时得电动工具有限公司 吹风机及风管机构
WO2022247924A1 (fr) * 2021-05-27 2022-12-01 苏州宝时得电动工具有限公司 Soufflante d'air

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