US3700358A - Fan assembly for a ventilator - Google Patents
Fan assembly for a ventilator Download PDFInfo
- Publication number
- US3700358A US3700358A US101026A US3700358DA US3700358A US 3700358 A US3700358 A US 3700358A US 101026 A US101026 A US 101026A US 3700358D A US3700358D A US 3700358DA US 3700358 A US3700358 A US 3700358A
- Authority
- US
- United States
- Prior art keywords
- fan assembly
- passage
- housing
- ventilator
- hollow portions
- 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.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- 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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2050/00—Applications
- F01P2050/30—Circuit boards
Definitions
- ABSTRACT A fan assembly for a ventilator, and a square ventilator housing comprising a first portion formed with a first passage of circular cross-section and wherein the fan assembly is at least partially received, and at least one second portion rigid with the first portion and formed with a second passage axially aligned and directly communicating with said first passage, said second passage having an open end spaced from the first passage and having throughout its length and at the open end thereof a cross-sectional area greater than the cross-sectional area of the circular first passage and a transverse dimension greater than the diameter of the circular first passage.
- the electronic components as resistors, condensers, transistors, diodes and the like which are necessary for commutation and/or for electrical control of this fan assembly are placed inside one or more hollow portions in the corners of said square housing.
- the present invention relates to a fan assembly for a ventilator. More particularly, the invention relates to improvements in a fan assembly which may be utilized for ventilation and efficient withdrawal of heat from electrical apparatus, for example, for cooling of apparatus which are used in the field of communications. Still more particularly, the invention relates to improvements in a fan assembly wherein the rotor preferably accommodates the stator.
- a fan assembly for a ventilator comprising in combination a square ventilator housing having a first portion formed with a first passage of circular cross-section and wherein the fan assembly is at least partially received, and at least one second portion rigid with the first portion and formed with a second passage axially aligned and directly communicating with said first passage, said second passage having an open end spaced from the first passage and having throughout its length and at the open end thereof a cross-sectional area greater than the cross-sectional area of the circular first passage and a transverse dimension greater than the diameter of the circular first passage and electronic components as resistors, condensors, transistors, diodes and the like which are necessary for commutation and/or for electrical control of this fan assembly being placed inside one or more hollow portions in the corners of said square housing.
- said electronic components are mounted in hollow portions having their open ends on the inlet side of the fan assembly.
- the electronic components are mounted on such parts of the housing which have a direct metallic connection to a fan-cooled surface of said housing.
- the motor is carried by spoke-like supporting means and the electric cables connected to said electronic components are mounted in a recess of said spoke-like supporting means and there are plug connections between said cables and said motor.
- FIG. 1 is a sectional partial view taken along a radius from the center to one corner of a fan assembly according to the invention
- FIG. 2 is an elevated view of a smaller version in reduced scale taken from the input side of the fan assembly
- FIG. 3 is a circuit diagram of the electric motor and the associated electronic components mounted within the housing of said motor.
- a square housing 1 surrounds an electric motor 1.
- Electronic components 2 such as resistors, condensors, transistors, diodes and the like which are necessary for commutation and/or for electrical control of this fan assembly, are mounted in hollow portions 3 which are in the region of corners of said housing.
- the propeller fan is of the type wherein the rotor surrounds the stator, the blades of the fan being affixed to the peripheral parts of said rotor.
- the rotating shaft of the rotor is turnably mounted in bearing means which are surrounded by a tubular housing (not shown) on which the laminae 4 and the plate 4' are mounted and which is affixed to the flange-shaped member 5.
- ribs 6 on which a transistor 2' is affixed. These ribs have a direct metallic connection to the inclined fancooled surface 7 of said housing. As the particular construction of the housing 1 increases considerably the input of air as well as the output and decreases air friction said inclined surface 7 is perfectly cooled and the heat originating in transistor 2 is easily dissipated.
- Spoke-like mounting means 10 are firmly connecting the corners of the housing with the stator flange 5 on which the motor is mounted.
- the spoke-like parts 10 are especially shaped as guiding means and protection for the electric cables 10' which connect transistor 2' and other electrical components with the motor.
- plugs 11 which are connected with the electric circuit of the motor so that the fan assembly can easily be connected with the mains by means of these plugs.
- FIG. 3 there are illustrated by way of example the electrical connections between the motor and the associated electronic components mounted in the housing of the fan assembly.
- the four stator windings 13 and the hall semi-conductors 14 which are in the central part of the housing 1 are shown on the left. All other electronic components which are mounted in the corners of the housing are shown on the right.
- the magnetic field of the motor will influence the hall semi-conductors so that their resistance is varying in well-known manner according to the actual position of the rotor.
- the transistors 16, 17, 18, 19 connected with said hall semi-conductors 14 will become conductive one after the other, the diodes 20, 21, 22, 23 will become conductive one after the other and accordingly a current will flow through the associated windings 13.
- the potentiometer 24 the speed of the motor can be changed.
- the potential derived from the winding of the motor (which is acting as tacho-generator) is compared with a reference potential derived by means of the zener diode 25.
- the transistors 26 and the associated resistors have a per se known function in this device for controlling the speed of the motor.
- the present invention offers a novel and advantageous way for housing the electronic components, which are necessary for such control functions.
- a fan assembly for a ventilator comprising, in combination, a square housing having hollow portions in the corners thereof and having a portion formed with a passage of circular cross-section and wherein a fan assembly is at least partially received, said fan assembly having a motor; spoke-like support means for carrying said motor and having longitudinal recesses; a plurality of electrical components including resistors, condensors, transistors and diodes comprising a control circuit for electrically controlling the fan assembly, said electrical components being placed inside at least one of the hollow portions in the corners of said square housing; electrical cables connected to said electrical components and mounted in a recess of said spoke-like supporting means; and plug connector means mounted on said housing and connecting said cables and arranged to be connected to a source of electrical energy.
- a fan assembly for a ventilator according to claim 1, said electronic components being mounted in hollow portions having their open ends on the inlet side of the fan assembly.
- a fan assembly for a ventilator according to claim 1, said electronic components being mounted with good thermal conductivity on such parts of the housing which have a direct metallic connection to a fan-cooled surfaceof said housing.
Abstract
A fan assembly for a ventilator, and a square ventilator housing comprising a first portion formed with a first passage of circular cross-section and wherein the fan assembly is at least partially received, and at least one second portion rigid with the first portion and formed with a second passage axially aligned and directly communicating with said first passage, said second passage having an open end spaced from the first passage and having throughout its length and at the open end thereof a cross-sectional area greater than the cross-sectional area of the circular first passage and a transverse dimension greater than the diameter of the circular first passage. The electronic components as resistors, condensors, transistors, diodes and the like which are necessary for commutation and/or for electrical control of this fan assembly are placed inside one or more hollow portions in the corners of said square housing.
Description
United States Patent Papst et al.
[54] FAN ASSEMBLY FOR A VENTILATOR [72] Inventors: Georg F. Papst; Emil Gierschek;
Hans-Dieter Papst, all of St. Georgen, Germany [73] Assignee: Papst-Motoren KG, St. Georgen,
Germany [22] Filed: Dec.23,1970
211 Appl. No.: 101,026
[30] Foreign Application Priority Data Dec. 24, 1969 Germany ..P 19 64 890.9
[52] [1.5. CI. .4l7/354, 417/423, 310/67 [51] Int. Cl. 17/00, F04b 35/04, H02k 7/00, H02k 68/73 [58] Field of Search ..4l7/353, 354, 423; 98/94; 310/67 [56] References Cited UNITED STATES PATENTS 2,776,089 1/1957 Burrows et al ..417/353 X 3,229,897 1/1966 Papst ..417/354 2,961,152 11/1960 Douglas et al. ..98/94 [4 1 Oct. 24, 1972 3,483,456 12/1969 Brunner et al ..318/254 X Primary Examiner-Robert M. Walker Attorney-Michael S. Striker [57] ABSTRACT A fan assembly for a ventilator, and a square ventilator housing comprising a first portion formed with a first passage of circular cross-section and wherein the fan assembly is at least partially received, and at least one second portion rigid with the first portion and formed with a second passage axially aligned and directly communicating with said first passage, said second passage having an open end spaced from the first passage and having throughout its length and at the open end thereof a cross-sectional area greater than the cross-sectional area of the circular first passage and a transverse dimension greater than the diameter of the circular first passage. The electronic components as resistors, condensers, transistors, diodes and the like which are necessary for commutation and/or for electrical control of this fan assembly are placed inside one or more hollow portions in the corners of said square housing.
3 Claims, 3 Drawing Figures PATENTEDum 24 I972 SHEET 2 BF 2 I I I A IIIL Georg F Papst Emil G/erschek BACKGROUND OF THE INVENTION The present invention relates to a fan assembly for a ventilator. More particularly, the invention relates to improvements in a fan assembly which may be utilized for ventilation and efficient withdrawal of heat from electrical apparatus, for example, for cooling of apparatus which are used in the field of communications. Still more particularly, the invention relates to improvements in a fan assembly wherein the rotor preferably accommodates the stator.
There is an increasing tendency to control the amount of air-flow through said equipment depending from temperature, humidity or other parameters. This can be done easily by electronic control of the speed of the fan.
It is therefore a primary object of the present invention to provide a fan of small size and high capacity by housing the electronic components which are necessary for said electronic speed control in spare room inside the housing of the fan assembly.
" It is a further object of the invention to provide a simple and inexpensive fanassembly in which the motor may easily be replaced by a like one.
It is a still further object of the invention to provide an efficient cooling of such electronic components in which heat is generated during action.
SUMMARY OF THE INVENTION One feature of our invention resides in a novel construction of a fan assembly for a ventilator, comprising in combination a square ventilator housing having a first portion formed with a first passage of circular cross-section and wherein the fan assembly is at least partially received, and at least one second portion rigid with the first portion and formed with a second passage axially aligned and directly communicating with said first passage, said second passage having an open end spaced from the first passage and having throughout its length and at the open end thereof a cross-sectional area greater than the cross-sectional area of the circular first passage and a transverse dimension greater than the diameter of the circular first passage and electronic components as resistors, condensors, transistors, diodes and the like which are necessary for commutation and/or for electrical control of this fan assembly being placed inside one or more hollow portions in the corners of said square housing.
In a preferred embodiment of the invention said electronic components are mounted in hollow portions having their open ends on the inlet side of the fan assembly.
According to another feature of the invention the electronic components are mounted on such parts of the housing which have a direct metallic connection to a fan-cooled surface of said housing.
According to a still further feature of the invention the motor is carried by spoke-like supporting means and the electric cables connected to said electronic components are mounted in a recess of said spoke-like supporting means and there are plug connections between said cables and said motor.
The novel features which are considered as characteristic of the invention are set forth in particular in the appended claims. The improved fan assembly itself,
however, both as to its construction and its mode of operation, together with additional features and advantages thereof, will be best understood upon perusal of the following detailed description of certain specific embodiments with reference to the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional partial view taken along a radius from the center to one corner of a fan assembly according to the invention,
FIG. 2 is an elevated view of a smaller version in reduced scale taken from the input side of the fan assembly,
FIG. 3 is a circuit diagram of the electric motor and the associated electronic components mounted within the housing of said motor.
DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment illustrated in FIG. 1 a square housing 1 surrounds an electric motor 1. Electronic components 2 such as resistors, condensors, transistors, diodes and the like which are necessary for commutation and/or for electrical control of this fan assembly, are mounted in hollow portions 3 which are in the region of corners of said housing. The propeller fan is of the type wherein the rotor surrounds the stator, the blades of the fan being affixed to the peripheral parts of said rotor. The rotating shaft of the rotor is turnably mounted in bearing means which are surrounded by a tubular housing (not shown) on which the laminae 4 and the plate 4' are mounted and which is affixed to the flange-shaped member 5.
Within the hollow portions 3 of the housing 1 there are ribs 6 on which a transistor 2' is affixed. These ribs have a direct metallic connection to the inclined fancooled surface 7 of said housing. As the particular construction of the housing 1 increases considerably the input of air as well as the output and decreases air friction said inclined surface 7 is perfectly cooled and the heat originating in transistor 2 is easily dissipated.
Spoke-like mounting means 10 are firmly connecting the corners of the housing with the stator flange 5 on which the motor is mounted. The spoke-like parts 10 are especially shaped as guiding means and protection for the electric cables 10' which connect transistor 2' and other electrical components with the motor. In one corner there are mounted plugs 11 which are connected with the electric circuit of the motor so that the fan assembly can easily be connected with the mains by means of these plugs.
In the circuit diagram of FIG. 3 there are illustrated by way of example the electrical connections between the motor and the associated electronic components mounted in the housing of the fan assembly. The four stator windings 13 and the hall semi-conductors 14 which are in the central part of the housing 1 are shown on the left. All other electronic components which are mounted in the corners of the housing are shown on the right. There are plug connections 15 so that the motor may easily be replaced by a new one.
The magnetic field of the motor will influence the hall semi-conductors so that their resistance is varying in well-known manner according to the actual position of the rotor. The transistors 16, 17, 18, 19 connected with said hall semi-conductors 14 will become conductive one after the other, the diodes 20, 21, 22, 23 will become conductive one after the other and accordingly a current will flow through the associated windings 13. By means of the potentiometer 24 the speed of the motor can be changed. For the purpose of electronic control of the speed the potential derived from the winding of the motor (which is acting as tacho-generator) is compared with a reference potential derived by means of the zener diode 25. The transistors 26 and the associated resistors have a per se known function in this device for controlling the speed of the motor.
When electronic or other equipment has to be ventilated, there is an increasing tendency to control the amount of air-flow through said equipment. This can be done easily be controlling the speed of the fan.
The present invention offers a novel and advantageous way for housing the electronic components, which are necessary for such control functions.
Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features which fairly constitute essential characteristics of the generic and specific aspects of our contribution to the art and, therefore, such adaptations should and are intended to be comprehended within the meaning and range of equivalence of the claims.
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims:
1. A fan assembly for a ventilator, comprising, in combination, a square housing having hollow portions in the corners thereof and having a portion formed with a passage of circular cross-section and wherein a fan assembly is at least partially received, said fan assembly having a motor; spoke-like support means for carrying said motor and having longitudinal recesses; a plurality of electrical components including resistors, condensors, transistors and diodes comprising a control circuit for electrically controlling the fan assembly, said electrical components being placed inside at least one of the hollow portions in the corners of said square housing; electrical cables connected to said electrical components and mounted in a recess of said spoke-like supporting means; and plug connector means mounted on said housing and connecting said cables and arranged to be connected to a source of electrical energy.
2. A fan assembly for a ventilator according to claim 1, said electronic components being mounted in hollow portions having their open ends on the inlet side of the fan assembly.
3. A fan assembly for a ventilator according to claim 1, said electronic components being mounted with good thermal conductivity on such parts of the housing which have a direct metallic connection to a fan-cooled surfaceof said housing.
Claims (3)
1. A fan assembly for a ventilator, comprising, in combination, a square housing having hollow portions in the corners thereof and having a portion formed with a passage of circular crosssection and wherein a fan assembly is at least partially received, said fan assembly having a motor; spoke-like support means for carrying said motor and having longitudinal recesses; a plurality of electrical components including resistors, condensors, transistors and diodes comprising a control circuit for electrically controlling the fan assembly, said electrical components being placed inside at least one of the hollow portions in the corners of said square housing; electrical cables connected to said electrical components and mounted in a recess of said spoke-like supporting means; and plug connector means mounted on said housing and connecting said cables and arranged to be connected to a source of electrical energy.
2. A fan assembly for a ventilator according to claim 1, said electronic components being mounted in hollow portions having their open ends on the inlet side of the fan assembly.
3. A fan assembly for a ventilator according to claim 1, said electronic components being mounted with good thermal conductivity on such parts of the housing which have a direct metallic connection to a fan-cooled surface of said housing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691964890 DE1964890A1 (en) | 1969-12-24 | 1969-12-24 | Fan unit with electronic components |
Publications (1)
Publication Number | Publication Date |
---|---|
US3700358A true US3700358A (en) | 1972-10-24 |
Family
ID=5754973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US101026A Expired - Lifetime US3700358A (en) | 1969-12-24 | 1970-12-23 | Fan assembly for a ventilator |
Country Status (3)
Country | Link |
---|---|
US (1) | US3700358A (en) |
JP (1) | JPS5034257B1 (en) |
DE (1) | DE1964890A1 (en) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4400140A (en) * | 1977-08-11 | 1983-08-23 | Papst Motoren Kg | Compact fan |
US4549858A (en) * | 1981-04-03 | 1985-10-29 | Etudes Techniques Et Representations Industrielles E.T.R.I. | Flat type fan, particularly for electronic circuits |
US4636669A (en) * | 1984-10-29 | 1987-01-13 | Msl Industries, Inc. | Termination assembly for electric fans |
US4659951A (en) * | 1986-02-14 | 1987-04-21 | General Motors Corporation | Brushless blower motor with load proportional cooling for control circuitry |
US4663549A (en) * | 1984-06-29 | 1987-05-05 | Canon Kabushiki Kaisha | Fan motor with a fan frame formed in part by a portion of a motor base |
US4773828A (en) * | 1986-07-18 | 1988-09-27 | Mitsubishi Denki Kabushiki Kaisha | Blower |
US4895489A (en) * | 1986-11-14 | 1990-01-23 | Yasuaki Kohama | Axial flow fan |
US4909711A (en) * | 1978-02-15 | 1990-03-20 | Papst-Motoren Gmbh & Co. Kg | Small fan with electric drive motor |
US4962734A (en) * | 1990-03-14 | 1990-10-16 | Paccar Inc. | Electrically driven, circumferentially supported fan |
US5028216A (en) * | 1982-11-09 | 1991-07-02 | Papst-Motoren Gmbh & Co. Kg | Miniaturized direct current fan |
US5153470A (en) * | 1990-05-31 | 1992-10-06 | Nippon Densan Corporation | Spindle motor |
US5189327A (en) * | 1990-08-29 | 1993-02-23 | Matsushita Electric Industrial Co., Ltd. | Axial-flow fan motor with modular connector |
US5342167A (en) * | 1992-10-09 | 1994-08-30 | Airflow Research And Manufacturing Corporation | Low noise fan |
US5629834A (en) * | 1993-08-20 | 1997-05-13 | Sanyo Denki Co., Ltd. | Electronic component cooling apparatus |
US5695318A (en) * | 1991-08-15 | 1997-12-09 | Papst-Motoren Gmbh & Co Kg | Diagonal fan |
US5997267A (en) * | 1997-03-12 | 1999-12-07 | Lee; Richard | Non-electromagnetic interference generating cooling fan |
WO2002080336A1 (en) * | 2001-03-29 | 2002-10-10 | Fläkt Woods AB | Cooling of the electronics of an electrically operated device |
US20020180285A1 (en) * | 2001-05-30 | 2002-12-05 | Machiroutu Sridhar V. | Fan assembly for a computer |
US6517326B2 (en) * | 2000-04-14 | 2003-02-11 | Matsushita Electric Industrial Co., Ltd. | Blowing apparatus |
US6572333B2 (en) * | 2000-12-15 | 2003-06-03 | Matsushita Electric Industrial Co., Ltd. | Air blower |
US20050106046A1 (en) * | 2002-01-11 | 2005-05-19 | Winkler Wolfgang A. | Miniature fan or micro-fan |
US20050253467A1 (en) * | 2004-05-13 | 2005-11-17 | Sanyo Denki Co., Ltd. | Heat-emitting element cooling apparatus |
EP2848815A1 (en) * | 2013-09-13 | 2015-03-18 | Sanyo Denki Co., Ltd. | Housing of fan motor |
US20150122306A1 (en) * | 2012-04-18 | 2015-05-07 | Gpiii S.R.L. | System for preventing condensation phenomena in a group of concentration photovoltaic panels |
US20150226224A1 (en) * | 2012-09-20 | 2015-08-13 | Spal Automotive S.R.L. | Ventilation unit |
US20180023578A1 (en) * | 2016-07-21 | 2018-01-25 | Denso International America, Inc. | Fan shroud, fan device, and manufacturing process |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2414649A1 (en) * | 1978-01-12 | 1979-08-10 | Etri Sa | Axial flow ventilator fan - has shroud in square housing with sound absorbing material in corner spaces |
DE3523223A1 (en) * | 1985-06-28 | 1987-01-02 | Sueddeutsche Kuehler Behr | Fan casing designed as a motor mount |
DE9006174U1 (en) * | 1990-05-31 | 1991-10-10 | Papst-Motoren Gmbh & Co Kg, 7742 St Georgen, De | |
DE19612679C2 (en) * | 1996-03-29 | 2003-10-30 | Temic Auto Electr Motors Gmbh | Radiator fan for motor vehicles |
FR2772844B1 (en) * | 1997-12-23 | 2000-03-03 | Valeo Thermique Moteur Sa | DEVICE FOR CHANNELING AN AIR FLOW, PARTICULARLY FOR A MOTOR VEHICLE |
ATE449912T1 (en) * | 2005-08-19 | 2009-12-15 | Ebm Papst St Georgen Gmbh & Co | FAN |
RU2443901C2 (en) * | 2009-09-08 | 2012-02-27 | Российская Академия сельскохозяйственных наук Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства (ГНУ ВИЭСХ РОССЕЛЬХОЗАКАДЕМИИ) | Turbine for high wind loads |
DE102012106529A1 (en) * | 2012-07-18 | 2014-01-23 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Fan with fan housing |
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US2776089A (en) * | 1951-02-13 | 1957-01-01 | Lau Blower Co | Blower |
US2961152A (en) * | 1955-12-09 | 1960-11-22 | Murray Ohio Mfg Co | Portable fan unit and window adapter |
US3229897A (en) * | 1963-01-14 | 1966-01-18 | Papst Hermann | Ventilator |
US3483456A (en) * | 1966-04-28 | 1969-12-09 | Siemens Ag | Brushless direct-current motor with hall-generator control |
-
1969
- 1969-12-24 DE DE19691964890 patent/DE1964890A1/en active Pending
-
1970
- 1970-12-23 US US101026A patent/US3700358A/en not_active Expired - Lifetime
- 1970-12-24 JP JP45116859A patent/JPS5034257B1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US2776089A (en) * | 1951-02-13 | 1957-01-01 | Lau Blower Co | Blower |
US2961152A (en) * | 1955-12-09 | 1960-11-22 | Murray Ohio Mfg Co | Portable fan unit and window adapter |
US3229897A (en) * | 1963-01-14 | 1966-01-18 | Papst Hermann | Ventilator |
US3483456A (en) * | 1966-04-28 | 1969-12-09 | Siemens Ag | Brushless direct-current motor with hall-generator control |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4400140A (en) * | 1977-08-11 | 1983-08-23 | Papst Motoren Kg | Compact fan |
US4909711A (en) * | 1978-02-15 | 1990-03-20 | Papst-Motoren Gmbh & Co. Kg | Small fan with electric drive motor |
US4549858A (en) * | 1981-04-03 | 1985-10-29 | Etudes Techniques Et Representations Industrielles E.T.R.I. | Flat type fan, particularly for electronic circuits |
US5028216A (en) * | 1982-11-09 | 1991-07-02 | Papst-Motoren Gmbh & Co. Kg | Miniaturized direct current fan |
US4663549A (en) * | 1984-06-29 | 1987-05-05 | Canon Kabushiki Kaisha | Fan motor with a fan frame formed in part by a portion of a motor base |
US4636669A (en) * | 1984-10-29 | 1987-01-13 | Msl Industries, Inc. | Termination assembly for electric fans |
US4659951A (en) * | 1986-02-14 | 1987-04-21 | General Motors Corporation | Brushless blower motor with load proportional cooling for control circuitry |
US4773828A (en) * | 1986-07-18 | 1988-09-27 | Mitsubishi Denki Kabushiki Kaisha | Blower |
US4895489A (en) * | 1986-11-14 | 1990-01-23 | Yasuaki Kohama | Axial flow fan |
US4962734A (en) * | 1990-03-14 | 1990-10-16 | Paccar Inc. | Electrically driven, circumferentially supported fan |
US5153470A (en) * | 1990-05-31 | 1992-10-06 | Nippon Densan Corporation | Spindle motor |
US5189327A (en) * | 1990-08-29 | 1993-02-23 | Matsushita Electric Industrial Co., Ltd. | Axial-flow fan motor with modular connector |
US5695318A (en) * | 1991-08-15 | 1997-12-09 | Papst-Motoren Gmbh & Co Kg | Diagonal fan |
US5342167A (en) * | 1992-10-09 | 1994-08-30 | Airflow Research And Manufacturing Corporation | Low noise fan |
US5629834A (en) * | 1993-08-20 | 1997-05-13 | Sanyo Denki Co., Ltd. | Electronic component cooling apparatus |
US5997267A (en) * | 1997-03-12 | 1999-12-07 | Lee; Richard | Non-electromagnetic interference generating cooling fan |
US6517326B2 (en) * | 2000-04-14 | 2003-02-11 | Matsushita Electric Industrial Co., Ltd. | Blowing apparatus |
US6572333B2 (en) * | 2000-12-15 | 2003-06-03 | Matsushita Electric Industrial Co., Ltd. | Air blower |
WO2002080336A1 (en) * | 2001-03-29 | 2002-10-10 | Fläkt Woods AB | Cooling of the electronics of an electrically operated device |
US20040098999A1 (en) * | 2001-03-29 | 2004-05-27 | Juhani Hyvarinen | Cooling of the electronics of an electrically operated device |
US20020180285A1 (en) * | 2001-05-30 | 2002-12-05 | Machiroutu Sridhar V. | Fan assembly for a computer |
US6653755B2 (en) * | 2001-05-30 | 2003-11-25 | Intel Corporation | Radial air flow fan assembly having stator fins surrounding rotor blades |
US20050106046A1 (en) * | 2002-01-11 | 2005-05-19 | Winkler Wolfgang A. | Miniature fan or micro-fan |
US20050253467A1 (en) * | 2004-05-13 | 2005-11-17 | Sanyo Denki Co., Ltd. | Heat-emitting element cooling apparatus |
US7411327B2 (en) * | 2004-05-13 | 2008-08-12 | Sanyo Denki Co., Ltd. | Heat-emitting element cooling apparatus |
US20150122306A1 (en) * | 2012-04-18 | 2015-05-07 | Gpiii S.R.L. | System for preventing condensation phenomena in a group of concentration photovoltaic panels |
US20150226224A1 (en) * | 2012-09-20 | 2015-08-13 | Spal Automotive S.R.L. | Ventilation unit |
US20150078939A1 (en) * | 2013-09-13 | 2015-03-19 | Sanyo Denki Co., Ltd. | Housing of fan motor |
CN104454619A (en) * | 2013-09-13 | 2015-03-25 | 山洋电气株式会社 | Housing of fan motor |
EP2848815A1 (en) * | 2013-09-13 | 2015-03-18 | Sanyo Denki Co., Ltd. | Housing of fan motor |
US10393127B2 (en) * | 2013-09-13 | 2019-08-27 | Sanyo Denki Co., Ltd. | Housing of fan motor |
US20180023578A1 (en) * | 2016-07-21 | 2018-01-25 | Denso International America, Inc. | Fan shroud, fan device, and manufacturing process |
Also Published As
Publication number | Publication date |
---|---|
JPS5034257B1 (en) | 1975-11-07 |
DE1964890A1 (en) | 1971-07-01 |
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