EP1715191A1 - Elektrischer Ventilator - Google Patents

Elektrischer Ventilator Download PDF

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Publication number
EP1715191A1
EP1715191A1 EP05008830A EP05008830A EP1715191A1 EP 1715191 A1 EP1715191 A1 EP 1715191A1 EP 05008830 A EP05008830 A EP 05008830A EP 05008830 A EP05008830 A EP 05008830A EP 1715191 A1 EP1715191 A1 EP 1715191A1
Authority
EP
European Patent Office
Prior art keywords
unit
fan
screen cover
output shafts
opposite
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Withdrawn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
EP05008830A
Other languages
English (en)
French (fr)
Inventor
Chung-Yin Cheng
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 EP05008830A priority Critical patent/EP1715191A1/de
Publication of EP1715191A1 publication Critical patent/EP1715191A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans

Definitions

  • the invention relates to an electric fan, more particularly to an electric fan with two opposite fan units.
  • a conventional electric fan 3 usually includes a stand 31 and a fan unit 32 supported by the stand 31. Since the conventional electric fan 3 blows solely in one direction, the cooling effect provided by the electric fan 3 is relatively limited. In addition, rotation of the fan unit 32 relative to the stand 31 is limited to a small extent.
  • the main object of the present invention is to provide an electric fan that can overcome at least one of the aforesaid drawbacks associated with the
  • an electric fan that includes a motor unit, opposite upper and lower fan units, and a stand unit.
  • the motor unit includes two opposite output shafts and a motor casing having two opposite ends.
  • the output shafts protrude outwardly and respectively from the ends of the motor casing.
  • Each of the upper and lower fan units has a plurality of blades connected to a respective one of the output shafts, and a screen cover connected to the motor unit and covering the blades.
  • the upper and lower fan units are aligned in a vertical direction.
  • the screen cover has a central portion aligned with the output shafts in the vertical direction.
  • the stand unit includes a support rod extending in the vertical direction and having a top end, and a coupling unit secured to the top end of the support rod and the central portion of the screen cover of the lower fan unit.
  • an electric fan that includes a motor unit, a fan assembly, a spherical screen cover, and a stand unit.
  • the fan assembly is coupled to and is driven by the motor unit.
  • the screen cover encloses the motor unit and the fan assembly, and is connected to the motor unit.
  • the stand unit includes a support rod extending in a vertical direction and having a top end, and an arcuate screen basket secured to the top end of the support rod and defining an accommodating space for receiving a portion of the screen cover therein such that the screen cover is rotatable together with the motor unit and the fan assembly in the screen basket to different angular positions relative to the stand unit.
  • an electric fan that includes a motor unit, two opposite fan units, and a stand unit.
  • the motor unit includes two opposite output shafts and a motor casing having two opposite ends and two opposite sides that extend between the ends.
  • the output shafts protrude outwardly and respectively from the ends of the motor casing.
  • Each of the fan units has a plurality of blades connected to a respective one of the output shafts.
  • the stand unit includes a support rod extending in a vertical direction and having a top end, and a frame secured to the top end of the support rod and pivoted to the sides of the motor casing so as to permit pivoting movement of the fan units together with the motor unit relative to the stand unit between a vertical position, in which the fan units are aligned in the vertical direction, and a horizontal position, in which the fan units are aligned in a horizontal direction perpendicular to the vertical direction.
  • the first preferred embodiment of an electric fan according to the present invention is shown to include a motor unit 11, opposite upper and lower fan units 12, and a stand unit 2.
  • the motor unit 11 includes two opposite output shafts 112 and a motor casing 111 having two opposite ends.
  • the output shafts 112 protrude outwardly and respectively from the ends of the motor casing 111.
  • Each of the upper and lower fan units 12 has a plurality of blades 121, 122 connected to a respective one of the output shafts 112, and a screen cover 124 connected to the motor unit 11 and covering the blades 121, 122.
  • the upper and lower fan units 12 are aligned in a vertical direction.
  • the screen cover 124 has a central portion 126 aligned with the output shafts 112 in the vertical direction.
  • the central portion 126 of the screen cover 124 of the lower fan unit 12 is formed with a central opening 127 that is coaxially aligned with the output shafts 112 along the vertical direction, and has opposite inner and outer sides.
  • the stand unit 2 includes a support rod 21 extending in the vertical direction and having a top end 223, and a coupling unit 22 secured to the top end 223 of the support rod 21 and the central portion 126 of the screen cover 124 of the lower fan unit 12.
  • the coupling unit 22 includes an annular flange 221 formed on the tope end 223 of the support rod 21 and in contact with the outer side of the central portion 126 of the screen cover 124 of the lower fan unit 12 and coaxially aligned with the central opening 127, a threaded rod 222 extending from the flange 221 through the central opening 127 in the central portion 126 of the screen cover 124 of the lower fan unit 12, and a nut member 23 in contact with the inner side of the central portion 126 of the screen cover 124 of the lower fan unit 12 and engaging threadedly the threaded rod 222 for fastening the support rod 21 to the screen cover 124 of the lower fan unit 12 upon tightening of the nut member 23.
  • the output shafts 112 drive the blades 121, 122 of the upper and lower fan units 12 to rotate, which results in an enhanced cooling effect as compared to the conventional fan unit.
  • the second preferred embodiment of an electric fan according to the present invention is shown to include a motor unit 11, a fan assembly 12' , a spherical screen cover 124 , a connecting member 13, and a stand unit 2.
  • the fan assembly 12' is coupled to and is driven by the motor unit 11.
  • the motor unit 11 includes two opposite output shafts 112, and a motor casing 111 having two opposite ends.
  • the output shafts 112 protrude outwardly and respectively from the ends of the motor casing 111 .
  • the fan assembly 12' includes two opposite fan units 12, each of which has a plurality of blades 121, 122 connected to a respective one of the output shafts 112. It should be noted herein that what is disclosed in this embodiment should not be imposed as a limitation during actual implementation. In practice, the motor unit 11 may as well include only one output shaft 112 that drives only one fan unit 12 of the fan assembly 12' as in the conventional electric fan.
  • the screen cover 124 includes two semispherical cover parts 1241, 1242 that cooperate with each other to enclose the motor unit 11 and the fan assembly 12'.
  • the screen cover 124 is connected to the motor unit 11 through the connecting member 13.
  • the screen cover 124 is connected to the motor casing 111 of the motor unit 11 via the connecting member 13.
  • the connecting member 13 includes an outer rim 132 secured to the screen cover 124, an inner rim 131 concentrically surrounded by the outer rim 132 and secured to the motor casing 111, and a plurality of spokes 133 interconnecting the inner and outer rims 131, 132.
  • the connecting member 13 further includes a plurality of engaging blocks 134 extending downward from a bottom side of the outer rim 132.
  • the lower semispherical cover part 1242 engages the engaging blocks 134 through screw means 1271.
  • the stand unit 2 includes a support rod 21 extending in a vertical direction and having a top end 223, and an arcuate screen basket 224 secured to the top end 223 of the support rod 21 through a coupling unit 22 and defining an accommodating space for receiving a portion of the screen cover 124 therein such that the screen cover 124 is rotatable together with the motor unit 11 and the fan assembly 12' in the screen basket 224 to different angular positions relative to the stand unit 2.
  • the screen basket 224 is substantially semi-spherical in shape and has an inner side conforming to an outer side of a selected one of the semispherical cover parts 1241, 1242.
  • the disposition of the screen cover 124 in the arcuate screen basket 224 of the second embodiment further permits the electric fan to be easily directed to any desired 3-dimensional angle so as to adjust the direction of the main air flow generated by the electric fan.
  • the third preferred embodiment of an electric fan according to the present invention is shown to include a motor unit 11, two opposite fan units 12 and a stand unit 2.
  • the motor unit 11 includes two opposite output shafts 112 and a motor casing 111 having two opposite ends and two opposite sides 1112 that extend between the ends of the motor casing 111.
  • the output shafts 112 protrude outwardly and respectively from the ends of the motor casing 111.
  • Each of the fan units 12 has a plurality of blades 121, 122 connected to a respective one of the output shafts 112, and a screen cover 124 connected to the motor casing 111 and covering the blades 121, 122.
  • the stand unit 2 includes a support rod 21 extending in a vertical direction and having a top end, and a frame 24 secured to the top end of the support rod 21 and pivoted to the sides 1112 of the motor casing 111, thereby permitting pivoting movement of the fan units 12 relative to the stand unit 2.
  • the frame 24 has an arcuate rod 242 with two opposite ends, and two radially-extending rods 243 that extend respectively from the ends of the arcuate rod 242 toward the motor casing 111 to connect pivotably with the sides 1112 of the motor casing 111 and that cooperate with the arcuate rod 242 to define a fan-passing space 20 thereamong for passage of one of the fan units 12 therethrough so as to permit the fan units 12 to rotate between a vertical position, in which the fan units 12 are aligned in the vertical direction, and a horizontal position, in which the fan units 12 are aligned in a horizontal direction perpendicular to the vertical direction.
  • the fan units 12 are positioned at a selected position between the vertical and horizontal positions through a positioning unit (not shown).
  • the third embodiment further permits the fan units 12 of the electric fan to rotate and to be positioned at any angle between the horizontal and vertical positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP05008830A 2005-04-22 2005-04-22 Elektrischer Ventilator Withdrawn EP1715191A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05008830A EP1715191A1 (de) 2005-04-22 2005-04-22 Elektrischer Ventilator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05008830A EP1715191A1 (de) 2005-04-22 2005-04-22 Elektrischer Ventilator

Publications (1)

Publication Number Publication Date
EP1715191A1 true EP1715191A1 (de) 2006-10-25

Family

ID=34935582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05008830A Withdrawn EP1715191A1 (de) 2005-04-22 2005-04-22 Elektrischer Ventilator

Country Status (1)

Country Link
EP (1) EP1715191A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104675717A (zh) * 2013-11-26 2015-06-03 鸿富锦精密电子(天津)有限公司 风扇
CN109261306A (zh) * 2018-08-15 2019-01-25 嘉兴塘东汽车配件有限公司 一种用于文件处理的剪碎装置
US20220010799A1 (en) * 2020-07-10 2022-01-13 Lg Electronics Inc. Air circulator and air cleaner including air circulator
CN114098490A (zh) * 2020-08-31 2022-03-01 Lg电子株式会社 干燥装置及其控制方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421428A (en) * 1966-01-06 1969-01-14 Ludwig Baumann Ventilating fan unit
US3469772A (en) * 1967-07-19 1969-09-30 Donald A Mcdonald Air moving apparatus
JPS6166895A (ja) * 1984-09-10 1986-04-05 Akio Matsumoto ダブル扇風機
JPH07151094A (ja) * 1993-11-30 1995-06-13 Toshiba Electric Appliance Co Ltd 扇風機
US20040213687A1 (en) * 2003-04-28 2004-10-28 Chung-Yin Cheng Heat dissipating fan assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421428A (en) * 1966-01-06 1969-01-14 Ludwig Baumann Ventilating fan unit
US3469772A (en) * 1967-07-19 1969-09-30 Donald A Mcdonald Air moving apparatus
JPS6166895A (ja) * 1984-09-10 1986-04-05 Akio Matsumoto ダブル扇風機
JPH07151094A (ja) * 1993-11-30 1995-06-13 Toshiba Electric Appliance Co Ltd 扇風機
US20040213687A1 (en) * 2003-04-28 2004-10-28 Chung-Yin Cheng Heat dissipating fan assembly

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 234 (M - 507) 14 August 1986 (1986-08-14) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104675717A (zh) * 2013-11-26 2015-06-03 鸿富锦精密电子(天津)有限公司 风扇
CN104675717B (zh) * 2013-11-26 2017-05-17 鸿富锦精密电子(天津)有限公司 风扇
CN109261306A (zh) * 2018-08-15 2019-01-25 嘉兴塘东汽车配件有限公司 一种用于文件处理的剪碎装置
US20220010799A1 (en) * 2020-07-10 2022-01-13 Lg Electronics Inc. Air circulator and air cleaner including air circulator
CN114098490A (zh) * 2020-08-31 2022-03-01 Lg电子株式会社 干燥装置及其控制方法
CN114098490B (zh) * 2020-08-31 2023-05-05 Lg电子株式会社 干燥装置及其控制方法

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