US20090010782A1 - Fan Unit, Particularly for a Vacuum Cleaner - Google Patents
Fan Unit, Particularly for a Vacuum Cleaner Download PDFInfo
- Publication number
- US20090010782A1 US20090010782A1 US11/909,506 US90950606A US2009010782A1 US 20090010782 A1 US20090010782 A1 US 20090010782A1 US 90950606 A US90950606 A US 90950606A US 2009010782 A1 US2009010782 A1 US 2009010782A1
- Authority
- US
- United States
- Prior art keywords
- vacuum cleaner
- power semiconductor
- recited
- fan
- cleaner fan
- 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.)
- Abandoned
Links
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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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Definitions
- the present invention relates to a vacuum cleaner fan, including an electric drive motor having a bearing pot for accommodating the component modules of the drive motor, such as a stator, rotor and, if present, brush holders with carbon brushes, and further including an at least single-stage fan unit which is driven by the motor and has a guide stage, an impeller, and a suction cap.
- an electric drive motor having a bearing pot for accommodating the component modules of the drive motor, such as a stator, rotor and, if present, brush holders with carbon brushes
- an at least single-stage fan unit which is driven by the motor and has a guide stage, an impeller, and a suction cap.
- a similar fan unit is employed, for example, in a vacuum cleaner manufactured by the Applicant, namely the Miele S 712.
- the power semiconductor used therein is a Triac.
- a control circuit board containing the Triac, a thermal switch, and a radio interference suppression capacitor is screwed to the end face of the bearing pot which is opposite the impeller.
- large-surface heat sinks are used to dissipate heat. These heat sinks are expensive and complicate assembly.
- the invention provides a vacuum cleaner fan with an electric drive motor having a stator assembly and a rotor.
- the stator assembly and rotor are disposed in a bearing pot.
- An at least single-stage fan unit is driven by the electric motor.
- the fan unit includes a guide stage, a suction cap, and an impeller that is configured to generate an air stream.
- the bearing pot includes a receiving pocket which holds an adapter housing.
- the adapter housing accommodates a printed circuit board.
- a power semiconductor operable to control rotational speed of the fan unit is included on the printed circuit board. At least a portion of the power semiconductor protrudes from the adapter housing into the vicinity of the air stream generated by the fan unit.
- FIGS. 1-5 in which:
- FIG. 1 is a longitudinal section through a fan unit designed in accordance with the present invention
- FIG. 2 is a perspective detail view showing the fan unit of FIG. 1 with the guide stage and with inserted adapter housing;
- FIG. 3 is a detail of FIG. 2 in the region of the Triac
- FIG. 4 is a perspective front view showing the adapter housing and the control circuit board
- FIG. 5 is a perspective front view showing the adapter housing and the control circuit board with the cover removed.
- the present invention provides for very efficient heat dissipation in spite of the fact that no heat sinks are used, by positioning the power semiconductor in the cooling air stream of the impeller.
- the adapter housing includes a lower part and a cover, the power semiconductor at least partially protruding through an opening formed in the cover.
- the other electrical and electronic components on the printed circuit board can be protected by the adapter housing. This facilitates handling during assembly and prevents destruction of these parts or of their solder connections on the printed circuit board.
- the power semiconductor may have a metallic flange which protrudes from the adapter housing. Via the flange, heat is efficiently removed from the power semiconductor, which ensures adequate cooling and allows the remainder of the power semiconductor to be protected by the adapter housing.
- the cover can be able to be snap-fitted to the lower part after insertion of the printed circuit board.
- the portion of the power semiconductor that projects into the air stream of the impeller is disposed behind an air supply opening of the guide stage. This is the location of greatest air flow. In addition, the air is cool since it has not yet passed any heated parts of the motor.
- FIG. 1 shows a suction fan 1 for a vacuum cleaner, the assembly including an electric drive motor 2 and a fan unit 3 which is driven by the motor.
- Fan unit 3 is covered by a suction cap 4 which has an intake opening 5 for the suction air stream.
- a bearing pot 10 accommodates the known component modules of drive motor 2 , such as wound stator assembly 6 , rotor 7 , and brush holders 8 with carbon brushes 9 .
- Fan unit 3 is single-stage and includes a guide stage 11 located below suction cap 4 , and an impeller 12 .
- Guide stage 11 at the same time forms the bearing pot cover of drive motor 2 , and is formed with a bearing seat 13 for receiving a bearing 13 . 1 for rotor shaft 7 . 1 .
- the bearing 14 .
- bearing seat 14 located in pot bottom 15 of bearing pot 10 .
- bearing seat 14 is disposed in a cross-shaped bearing member 23 (see FIG. 2 ), which is formed in bearing pot bottom 15 and leaves open the air outlets 24 for the fan air which is passed through motor 2 .
- the configuration in the form of a cross-shaped bearing member 23 is, of course, not mandatory. Instead, the suction air outlets may also be provided by any other pot bottom configuration, such as a closed pot bottom in combination with air slots formed in the side of the bearing pot.
- Bearing pot 10 which is shown isolated in FIG. 2 , is formed with a flange 16 on the side facing guide stage 11 , said flange projecting beyond the pot.
- the edge projection 17 created in this manner has integrally formed first receiving pockets 18 which are open at the top and toward bearing pot 10 and in which the brush holders 8 of carbon brushes 9 can be inserted from above.
- the terminal pins 21 of the brush holders are at the same time directly contacted into the stator assembly terminals 20 , thereby establishing the electrically conductive connection between rotor 7 and the stator (see FIG. 1 ).
- bearing pot 10 By forming bearing pot 10 with the edge projection 16 , the electrical switching, control and/or safety features required for suction fan drive motor 2 can be implemented by disposing electrical components within bearing pot 10 . These components are received in a further receiving pocket 27 which is open toward the interior of bearing pot 10 .
- the electrical components are mounted on a printed circuit board 29 (see FIG. 5 ), which is preferably also provided with terminal pins 30 . 1 and 30 . 2 for direct contacting to stator winding 6 . 1 .
- printed circuit board 29 is inserted into a separate adapter housing 31 , which in turn is inserted into receiving pocket 27 .
- Receiving pocket 27 formed in bearing pot shell 19 is provided on the underside with a plug socket 32 for an external plug connector.
- Plug socket 32 penetrates shell 19 of bearing pot 10 in an axial direction.
- Adapter housing 31 containing printed circuit board 29 can be inserted into receiving pocket 27 in a form-fitting manner.
- the adapter housing is of a two-part construction, including a lower part 33 and a cover 34 , which are connected together by snap-fit means 35 . 1 and 35 . 2 after insertion of printed circuit board 29 .
- Variation of the motor speed, and thus of the fan output, is accomplished by means of a phase control circuit in which a Triac 36 chops off portions of the line voltage half-waves supplied to the stator winding.
- a Triac 36 chops off portions of the line voltage half-waves supplied to the stator winding.
- This control method is generally known and is not described in greater detail here. Since the Triac 36 mounted on printed circuit board 29 is heated by the electric power supplied thereto, the present invention provides for the Triac to be disposed in the cooling air stream of impeller 12 , said cooling air stream being denoted by the arrows in FIG. 1 .
- cover 34 of adapter housing 31 is provided with an opening 37 through which protrudes metallic flange 38 of Triac 36 .
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Electric Vacuum Cleaner (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
A vacuum cleaner fan with an electric drive motor having a stator assembly and a rotor. The stator assembly and rotor are disposed in a bearing pot. An at least single-stage fan unit is driven by the electric motor. The fan unit includes a guide stage, a suction cap, and an impeller that is configured to generate an air stream. The bearing pot includes a receiving pocket which holds an adapter housing. The adapter housing accommodates a printed circuit board. A power semiconductor operable to control rotational speed of the fan unit is included on the printed circuit board. At least a portion of the power semiconductor protrudes from the adapter housing into the vicinity of the air stream generated by the fan unit.
Description
- This is a U.S. National Phase application under 35 U.S.C. §371 of International Application No. PCT/EP2006/001643, filed Feb. 23, 2006 and claims the benefit of German Patent Application No. 10 2005 013 774.1, filed on Mar. 22, 2005. The International Application was published in German on Sep. 28, 2006 as WO 2006/099927 under PCT Article 21 (2).
- The present invention relates to a vacuum cleaner fan, including an electric drive motor having a bearing pot for accommodating the component modules of the drive motor, such as a stator, rotor and, if present, brush holders with carbon brushes, and further including an at least single-stage fan unit which is driven by the motor and has a guide stage, an impeller, and a suction cap.
- DE 199 51 861 A1 describes a vacuum cleaner fan with an adapter housing provided on the bearing pot. However, the portion of the adapter housing that projects into the air stream generated by the impeller is closed off. The aforementioned patent mentions, but does not elaborate on the possibility of mounting electrical power controllers on the printed circuit board.
- Further, a similar fan unit is employed, for example, in a vacuum cleaner manufactured by the Applicant, namely the Miele S 712. The power semiconductor used therein is a Triac. In the Miele S 712, a control circuit board containing the Triac, a thermal switch, and a radio interference suppression capacitor, is screwed to the end face of the bearing pot which is opposite the impeller. In order to prevent overheating of the Triac, large-surface heat sinks are used to dissipate heat. These heat sinks are expensive and complicate assembly.
- It is, therefore, an aspect of the present invention to provide a vacuum cleaner fan in which optimum cooling is provided for the power semiconductor.
- The invention provides a vacuum cleaner fan with an electric drive motor having a stator assembly and a rotor. The stator assembly and rotor are disposed in a bearing pot. An at least single-stage fan unit is driven by the electric motor. The fan unit includes a guide stage, a suction cap, and an impeller that is configured to generate an air stream. The bearing pot includes a receiving pocket which holds an adapter housing. The adapter housing accommodates a printed circuit board. A power semiconductor operable to control rotational speed of the fan unit is included on the printed circuit board. At least a portion of the power semiconductor protrudes from the adapter housing into the vicinity of the air stream generated by the fan unit.
- The present invention will be explained, based on exemplary embodiments, in more detail with reference to the following
FIGS. 1-5 , in which: -
FIG. 1 is a longitudinal section through a fan unit designed in accordance with the present invention; -
FIG. 2 is a perspective detail view showing the fan unit ofFIG. 1 with the guide stage and with inserted adapter housing; -
FIG. 3 is a detail ofFIG. 2 in the region of the Triac; -
FIG. 4 is a perspective front view showing the adapter housing and the control circuit board; -
FIG. 5 is a perspective front view showing the adapter housing and the control circuit board with the cover removed. - The present invention provides for very efficient heat dissipation in spite of the fact that no heat sinks are used, by positioning the power semiconductor in the cooling air stream of the impeller.
- In an embodiment of the invention, the adapter housing includes a lower part and a cover, the power semiconductor at least partially protruding through an opening formed in the cover. In such an arrangement, the other electrical and electronic components on the printed circuit board can be protected by the adapter housing. This facilitates handling during assembly and prevents destruction of these parts or of their solder connections on the printed circuit board. The power semiconductor may have a metallic flange which protrudes from the adapter housing. Via the flange, heat is efficiently removed from the power semiconductor, which ensures adequate cooling and allows the remainder of the power semiconductor to be protected by the adapter housing.
- In order to facilitate assembly, the cover can be able to be snap-fitted to the lower part after insertion of the printed circuit board.
- In an embodiment, the portion of the power semiconductor that projects into the air stream of the impeller is disposed behind an air supply opening of the guide stage. This is the location of greatest air flow. In addition, the air is cool since it has not yet passed any heated parts of the motor.
-
FIG. 1 shows asuction fan 1 for a vacuum cleaner, the assembly including anelectric drive motor 2 and afan unit 3 which is driven by the motor.Fan unit 3 is covered by a suction cap 4 which has an intake opening 5 for the suction air stream. Abearing pot 10 accommodates the known component modules ofdrive motor 2, such aswound stator assembly 6,rotor 7, andbrush holders 8 withcarbon brushes 9.Fan unit 3 is single-stage and includes aguide stage 11 located below suction cap 4, and animpeller 12.Guide stage 11 at the same time forms the bearing pot cover ofdrive motor 2, and is formed with abearing seat 13 for receiving a bearing 13.1 for rotor shaft 7.1. The bearing 14.1 for the other end of rotor shaft 7.1 is disposed in abearing seat 14 located inpot bottom 15 ofbearing pot 10. In the example shown, bearingseat 14 is disposed in a cross-shaped bearing member 23 (see FIG. 2), which is formed inbearing pot bottom 15 and leaves open theair outlets 24 for the fan air which is passed throughmotor 2. The configuration in the form of a cross-shaped bearingmember 23 is, of course, not mandatory. Instead, the suction air outlets may also be provided by any other pot bottom configuration, such as a closed pot bottom in combination with air slots formed in the side of the bearing pot. -
Bearing pot 10, which is shown isolated inFIG. 2 , is formed with aflange 16 on the side facingguide stage 11, said flange projecting beyond the pot. Theedge projection 17 created in this manner has integrally formed first receivingpockets 18 which are open at the top and toward bearingpot 10 and in which thebrush holders 8 ofcarbon brushes 9 can be inserted from above. When insertingbrush holders 8, theterminal pins 21 of the brush holders are at the same time directly contacted into thestator assembly terminals 20, thereby establishing the electrically conductive connection betweenrotor 7 and the stator (seeFIG. 1 ). - By forming
bearing pot 10 with theedge projection 16, the electrical switching, control and/or safety features required for suctionfan drive motor 2 can be implemented by disposing electrical components withinbearing pot 10. These components are received in a further receivingpocket 27 which is open toward the interior ofbearing pot 10. - The electrical components are mounted on a printed circuit board 29 (see
FIG. 5 ), which is preferably also provided with terminal pins 30.1 and 30.2 for direct contacting to stator winding 6.1. As shown inFIGS. 4 and 5 , printedcircuit board 29 is inserted into aseparate adapter housing 31, which in turn is inserted into receivingpocket 27. Receivingpocket 27 formed inbearing pot shell 19 is provided on the underside with aplug socket 32 for an external plug connector.Plug socket 32 penetratesshell 19 of bearingpot 10 in an axial direction.Adapter housing 31 containing printedcircuit board 29 can be inserted into receivingpocket 27 in a form-fitting manner. The adapter housing is of a two-part construction, including alower part 33 and acover 34, which are connected together by snap-fit means 35.1 and 35.2 after insertion of printedcircuit board 29. - Variation of the motor speed, and thus of the fan output, is accomplished by means of a phase control circuit in which a Triac 36 chops off portions of the line voltage half-waves supplied to the stator winding. This control method is generally known and is not described in greater detail here. Since the
Triac 36 mounted on printedcircuit board 29 is heated by the electric power supplied thereto, the present invention provides for the Triac to be disposed in the cooling air stream ofimpeller 12, said cooling air stream being denoted by the arrows inFIG. 1 . For this purpose, cover 34 ofadapter housing 31 is provided with anopening 37 through which protrudesmetallic flange 38 ofTriac 36. The position of receivingpocket 27 within bearingpot 10 and the dimensions ofadapter housing 31 are matched in such a way that theflange 38 ofTriac 36, which protrudes fromhousing cover 34, is located directly behind anair supply opening 39 inguide stage 11. Thus, the heat generated inTriac 36 is removed via the flange and by the air flowing through bearingpot 10.
Claims (13)
1-5. (canceled)
6. A vacuum cleaner fan comprising:
an electric drive motor having a stator assembly and a rotor;
a bearing pot configured, to receive the stator assembly and the rotor;
an at least single-stage fan unit configured to be driven by the electric drive motor and having a guide stage, an impeller, and a suction cap, the impeller configured to generate an air stream;
a receiving pocket provided on the bearing pot;
an adapter housing configured to receive a printed circuit board, the adapter housing being received in the receiving pocket; and
a power semiconductor operable to control rotation speed of the at least single-stage fan unit, the power semiconductor being disposed on the printed circuit board,
wherein at least a portion of the power semiconductor protrudes from the adapter housing in a region of the air stream.
7. The vacuum cleaner fan recited in claim 6 , wherein the electric drive motor comprises brush holders with carbon brushes, the bearing pot configured to receive the brush holders with the carbon brushes.
8. The vacuum cleaner fan recited in claim 6 , wherein the adapter housing includes a lower part and a cover having an opening, and
wherein the portion of the power semiconductor protrudes through the opening.
9. The vacuum cleaner fan recited in claim 6 , wherein the portion of the power semiconductor includes a metallic flange.
10. The vacuum cleaner fan recited in claim 8 , wherein: the portion of the power semiconductor includes a metallic flange.
11. The vacuum cleaner fan recited in claim 8 , wherein the cover is snap-fittable on the lower part.
12. The vacuum cleaner fan recited in claim 10 , wherein the cover is snap-fittable on the lower part.
13. The vacuum cleaner fan as recited in claim 6 , wherein the portion of the power semiconductor is disposed in a vicinity of an air supply opening of the guide stage.
14. The vacuum cleaner fan as recited in claim 8 , wherein the portion of the power semiconductor is disposed in a vicinity of an air supply opening of the guide stage.
15. The vacuum cleaner fan as recited in claim 9 , wherein the portion of the power semiconductor is disposed in a vicinity of an air supply opening of the guide stage.
16. The vacuum cleaner fan as recited in claim 11 , wherein the portion of the power semiconductor is disposed in a vicinity of an air supply opening of the guide stage.
17. The vacuum cleaner fan as recited in claim 12 , wherein the portion of the power semiconductor is disposed in a vicinity of an air supply opening of the guide stage.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005013774.1 | 2005-03-22 | ||
DE102005013774 | 2005-03-22 | ||
PCT/EP2006/001643 WO2006099927A1 (en) | 2005-03-22 | 2006-02-23 | Fan unit, particularly for a vacuum cleaner |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090010782A1 true US20090010782A1 (en) | 2009-01-08 |
Family
ID=36297188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/909,506 Abandoned US20090010782A1 (en) | 2005-03-22 | 2006-02-23 | Fan Unit, Particularly for a Vacuum Cleaner |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090010782A1 (en) |
EP (1) | EP1861912B1 (en) |
AT (1) | ATE450918T1 (en) |
DE (1) | DE502006005516D1 (en) |
PL (1) | PL1861912T3 (en) |
SI (1) | SI1861912T1 (en) |
WO (1) | WO2006099927A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100254826A1 (en) * | 2009-03-25 | 2010-10-07 | Gunter Streng | Radial Blower |
US20130313933A1 (en) * | 2011-02-10 | 2013-11-28 | Panasonic Corporation | Rotor of motor and fan driving motor including rotor |
US20130313934A1 (en) * | 2011-02-10 | 2013-11-28 | Panasonic Corporation | Rotor of motor and fan driving motor including rotor |
US20150219107A1 (en) * | 2012-09-19 | 2015-08-06 | M.B.H. Developpement | Suction unit for mobile work equipment and devices |
US10348153B2 (en) * | 2017-10-24 | 2019-07-09 | Denso International America, Inc. | HVAC blower motor assembly |
US10931177B2 (en) * | 2018-04-12 | 2021-02-23 | Yao-Lin Wang | Generator with built-in voltage controller inside a motor having a changeover knife switch configuration and loops |
US20210340996A1 (en) * | 2020-04-29 | 2021-11-04 | Lg Electronics Inc. | Fan motor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3062088B1 (en) * | 2017-01-23 | 2019-06-07 | Valeo Systemes Thermiques | CONTROL VOLUME AND MODULES FOR HEATING, VENTILATION OR AIR CONDITIONING DEVICES OF A MOTOR VEHICLE |
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US20020109426A1 (en) * | 2000-12-20 | 2002-08-15 | Trw Automotive Electronics & Components Gmbh & Co. Kg | Drive unit for a fan in a vehicle |
US6488475B2 (en) * | 2000-03-30 | 2002-12-03 | Matsushita Electric Industrial Co., Ltd. | Electric blower and electric cleaner with an air cooled power device situated between the impeller and motor |
US20040037043A1 (en) * | 2002-08-20 | 2004-02-26 | Via Technologies, Inc. | IC package with an implanted heat-dissipation fin |
US20040123482A1 (en) * | 2002-09-20 | 2004-07-01 | Matsushita Electric Industrial Co, Ltd. | Electric blower and vacuum cleaner using same |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE59912168D1 (en) * | 1998-10-31 | 2005-07-14 | Miele & Cie | VACUUM FAN |
-
2006
- 2006-02-23 SI SI200630562T patent/SI1861912T1/en unknown
- 2006-02-23 WO PCT/EP2006/001643 patent/WO2006099927A1/en not_active Application Discontinuation
- 2006-02-23 US US11/909,506 patent/US20090010782A1/en not_active Abandoned
- 2006-02-23 DE DE502006005516T patent/DE502006005516D1/en active Active
- 2006-02-23 EP EP06707202A patent/EP1861912B1/en active Active
- 2006-02-23 AT AT06707202T patent/ATE450918T1/en active
- 2006-02-23 PL PL06707202T patent/PL1861912T3/en unknown
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US4634019A (en) * | 1986-03-14 | 1987-01-06 | J. L. Clark Manufacturing Co. | Container with plastic hinge |
US5530295A (en) * | 1993-12-29 | 1996-06-25 | Intel Corporation | Drop-in heat sink |
US6203293B1 (en) * | 1997-06-04 | 2001-03-20 | Asmo Co., Ltd. | Electric fan apparatus, connector connection structure, and intermediate terminal |
US6190941B1 (en) * | 1998-09-17 | 2001-02-20 | Daimlerchrysler Ag | Method of fabricating a circuit arrangement with thermal vias |
US6215662B1 (en) * | 2000-03-13 | 2001-04-10 | Intel Corporation | Circuit board with interleaved TO-220 heat sinks |
US6488475B2 (en) * | 2000-03-30 | 2002-12-03 | Matsushita Electric Industrial Co., Ltd. | Electric blower and electric cleaner with an air cooled power device situated between the impeller and motor |
US20020109426A1 (en) * | 2000-12-20 | 2002-08-15 | Trw Automotive Electronics & Components Gmbh & Co. Kg | Drive unit for a fan in a vehicle |
US20040037043A1 (en) * | 2002-08-20 | 2004-02-26 | Via Technologies, Inc. | IC package with an implanted heat-dissipation fin |
US20040123482A1 (en) * | 2002-09-20 | 2004-07-01 | Matsushita Electric Industrial Co, Ltd. | Electric blower and vacuum cleaner using same |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100254826A1 (en) * | 2009-03-25 | 2010-10-07 | Gunter Streng | Radial Blower |
US9109610B2 (en) * | 2009-03-25 | 2015-08-18 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Radial blower |
US20130313933A1 (en) * | 2011-02-10 | 2013-11-28 | Panasonic Corporation | Rotor of motor and fan driving motor including rotor |
US20130313934A1 (en) * | 2011-02-10 | 2013-11-28 | Panasonic Corporation | Rotor of motor and fan driving motor including rotor |
US9293954B2 (en) * | 2011-02-10 | 2016-03-22 | Panasonic Intellectual Property Management Co., Ltd. | Rotor of motor and fan driving motor including rotor |
US9369014B2 (en) * | 2011-02-10 | 2016-06-14 | Panasonic Intellectual Property Management Co., Ltd. | Rotor of motor and fan driving motor including rotor |
US20150219107A1 (en) * | 2012-09-19 | 2015-08-06 | M.B.H. Developpement | Suction unit for mobile work equipment and devices |
US10348153B2 (en) * | 2017-10-24 | 2019-07-09 | Denso International America, Inc. | HVAC blower motor assembly |
US10931177B2 (en) * | 2018-04-12 | 2021-02-23 | Yao-Lin Wang | Generator with built-in voltage controller inside a motor having a changeover knife switch configuration and loops |
US20210340996A1 (en) * | 2020-04-29 | 2021-11-04 | Lg Electronics Inc. | Fan motor |
US11867197B2 (en) * | 2020-04-29 | 2024-01-09 | Lg Electronics Inc. | Fan motor |
Also Published As
Publication number | Publication date |
---|---|
WO2006099927A1 (en) | 2006-09-28 |
EP1861912A1 (en) | 2007-12-05 |
PL1861912T3 (en) | 2010-05-31 |
ATE450918T1 (en) | 2009-12-15 |
EP1861912B1 (en) | 2009-12-02 |
DE502006005516D1 (en) | 2010-01-14 |
SI1861912T1 (en) | 2010-03-31 |
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