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EP1703140A1 - Dispositif de réfroidissement pour ventilateur avec moteur électrique - Google Patents

Dispositif de réfroidissement pour ventilateur avec moteur électrique Download PDF

Info

Publication number
EP1703140A1
EP1703140A1 EP06004231A EP06004231A EP1703140A1 EP 1703140 A1 EP1703140 A1 EP 1703140A1 EP 06004231 A EP06004231 A EP 06004231A EP 06004231 A EP06004231 A EP 06004231A EP 1703140 A1 EP1703140 A1 EP 1703140A1
Authority
EP
European Patent Office
Prior art keywords
circuit board
radial fan
cap
fan according
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.)
Granted
Application number
EP06004231A
Other languages
German (de)
English (en)
Other versions
EP1703140B1 (fr
Inventor
Rudolf Tungl
Roland Keber
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.)
Ebm Papst Landshut GmbH
Original Assignee
Ebm Papst Landshut GmbH
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 Ebm Papst Landshut GmbH filed Critical Ebm Papst Landshut GmbH
Publication of EP1703140A1 publication Critical patent/EP1703140A1/fr
Application granted granted Critical
Publication of EP1703140B1 publication Critical patent/EP1703140B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D25/06—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5813—Cooling the control unit

Definitions

  • the invention relates to an electric motor-driven radial fan according to the preamble of claim 1.
  • a generic radial fan which has a fan housing with a rotating therein impeller and each with a suction and exhaust port.
  • the impeller is connected via a drive shaft to the electric motor.
  • the electric motor is covered by a pot-shaped cap. Within the cap, a printed circuit board with electronic components is arranged.
  • the electric motor drives a fan wheel for cooling the electric motor and the electronic components arranged on the printed circuit board.
  • the volume flow conveyed by means of the known radial fan is adjusted via the rotational speed of the electric motor.
  • the invention has for its object to provide a radial fan of the generic type, which is characterized by low susceptibility and low height of the radial fan at low production costs.
  • an integrated circuit (IC or chip) for controlling the motor is conductively connected to the printed circuit board and that the air flow generated by the cooling wheel is directed to the IC.
  • the radial fan is due to the design of the invention without additional heat sink for the IC, which has a positive effect on the height.
  • the basic idea of the invention is to selectively guide an air flow generated by means of the fan wheel and thus to ensure effective cooling of highly-stressed electronic components, in particular of the IC.
  • the partial air streams blown directly from the fan wheel but also the intake air streams are understood by the air flows generated by the fan wheel.
  • separate air flow directing means are provided with which the air stream or streams are conducted directly onto the IC or past it.
  • the circuit board has a lid of the cap facing top and an opposite bottom and that the circuit board is arranged substantially parallel to the cover of the cap and orthogonal to the drive shaft of the electric motor and that the fan between the electric motor and the lid of the Cover is arranged.
  • the fan is designed as a radial fan.
  • a flow-through and the IC are arranged adjacent to this flow-through.
  • a (partial) air flow then flows through the flow opening directly to the IC.
  • the cooling effect can be further improved by arranging the IC within the (partial) air flow flowing through the flow-through opening.
  • the IC can be arranged, for example, at a distance from the printed circuit board on a support which protrudes from the printed circuit board at an angle, in particular between 90 ° and 10 °. It can be provided to make the support flexible, so as to be able to vary the position of the IC relative to the flow-through.
  • the electronics are arranged on the underside of the printed circuit board. Due to this inventive measure, a (partial) airflow flowing from the fan impeller can flow along the upper side of the circuit board without heating, and then, for example through the flow opening in the circuit board, directly to the IC on or flow past it. As a result, a particularly effective cooling of the IC is ensured.
  • At least one inflow opening for outside air is provided in the cover cap, which is preferably arranged relative to the fan wheel such that an immediate flowing along of the outside air at the electronics and / or on the IC and / or on the electric motor and associated preheating of this air is avoided before reaching the fan wheel.
  • the inflow opening is arranged in the cover of the cap, in particular immediately adjacent to the fan.
  • the suction opening of the fan wheel is directed in the direction of inflow, so that mainly or better exclusively, cool outside air is sucked.
  • a second embodiment provides that the inflow opening is introduced into the peripheral wall of the cap, preferably adjacent to the IC. As a result, the cool outside air can flow along the IC even before reaching the fan wheel.
  • the inflow opening is formed by a gap between the cap and the blower housing. This variant has manufacturing advantages, since no additional opening must be made in the cap.
  • the electronics and / or the electric motor are arranged such that the outside air flowing in through the inflow opening does not flow directly past these components before reaching the IC. This is achieved in particular by the provision of air baffles.
  • a particularly advantageous arrangement is achieved in that a recess for the fan wheel is provided in the printed circuit board and that the fan wheel is arranged through the printed circuit board, so that an outgoing (partial) air flow along the top and another outgoing (partial) air flow along the bottom of the circuit board sweeps. If no electronics are now arranged on the upper side of the printed circuit board, the air flowing above the printed circuit board, without being heated, can be led directly to the IC. The horizontal air flow below the printed circuit board, the electronics arranged on the underside of the printed circuit board is cooled in parallel.
  • the cooling of the IC and / or the electronics is improved in that at least one shipsstromleit worn is provided.
  • this can be formed on the cover of the cap and integrally therewith.
  • the cool air flow can be diverted from the upper side of the printed circuit board through the flow-through opening to the IC by means of the airflow line device.
  • a louver can be attached, which prevents the flow of (part) air flowing along the electronics to flow to the IC.
  • guide vanes for example, guide plates, integrally formed on webs webs or channels can be used.
  • an inflow opening for the fan wheel is provided in the circuit board.
  • the fan is in this case immediately adjacent to this inflow opening, arranged on the underside of the circuit board.
  • the generated air flow is discharged exclusively from the fan wheel on the underside of the printed circuit board.
  • a transmission can be connected between the electric motor and the fan.
  • Fig. 1 shows a schematic sectional view of a radial blower 1 according to the invention, which has a flat-cylindrical blower housing 2 with an impeller 3 rotating therein and an electric motor 4 driving the blower wheel 3.
  • the blower housing 2 has a central suction opening 5 and a lateral outlet opening 6.
  • Such radial blower 1 are used to promote a gas-air mixture for a gas boiler, for a gas burner or the like.
  • the electric motor 4 is mounted on the suction opening 5 opposite side 7 of the blower housing 2. It has a continuous drive shaft 8 which projects into the blower housing 2 and which is non-rotatably connected at its one end region 9 to the blower wheel 3 and at the opposite end region 10 with a fan wheel 11 designed as a radial fan. About the common drive shaft 8, the electric motor 4 drives both the impeller 3, and the fan 11 at.
  • a flat circuit board 12 is arranged orthogonal to the drive shaft 8. On the circuit board 12 is the electronics, not shown, which extends exclusively on the underside 13 of the circuit board 12.
  • the electric motor 4 with the circuit board 12 and the fan 11 are enclosed by a cup-shaped cover 14.
  • the cup-shaped cover 14 is frontally bounded by a circular cover 15, from which extends a cylindrical peripheral wall 16 perpendicular to the blower housing 2, so that the aforementioned components are protected against contact.
  • the cap 14 is fixed by means of a screw or locking connection, not shown, to the fan housing 3, so that the circuit board 12, electric motor 4 and fan 11 are enclosed on all sides.
  • the circuit board 12 extends parallel to the cover 15 of the cap 14, so that between the lid 15 and circuit board 12, a space is formed.
  • a carrier 17 is mounted with an integrated circuit (IC) 18 arranged thereon.
  • the power loss of the IC is about 3 W to 4 W with a thermal resistance of about 60 K / W.
  • the carrier 17 is in the plane of the drawing at an angle of about 80 ° from the circuit board 12 downwards, so that the IC 18 is spaced from the circuit board 12.
  • a recess 32 is provided for the fan 11.
  • the fan wheel 11 passes through the recess 32 in the printed circuit board 12, so that the horizontal air flow discharged from the fan 11 is divided into two (partial) air streams 27 and 28, wherein the (partial) air flow 27 along the top 20 and the ( Part) air flow 28 along the bottom 13 of the circuit board 12 flows.
  • the air flow 28 may be omitted, so that accordingly the opening may be smaller.
  • an inlet opening 21 for outside air is provided immediately above the fan wheel 11 in the lid 15 of the cover cap 14.
  • the cool outside air is sucked axially from the fan 11 and flowed radially in the direction of arrow.
  • an air flow guide 22 is provided to direct a (partial) air flow in the direction of IC 18.
  • the Luftstromleit tone 22 consists in the present embodiment of suitably designed and integrally formed with the lid 15 of the cap 14 and down vertically projecting baffles 23, 24, 25.
  • the (partial) air flow 27 flows horizontally in this channel 26 and can flow down in the direction of flow opening 19.
  • the cup-shaped cap 14 is shown with lid 15 in a schematic view from below.
  • the inflow opening 21 is formed.
  • the Heilströmleit Anlagen 22 extends with cooling channel 26 with the walls 23, 24, 25.
  • the channel 26 may be formed as a radial fan housing, at the output of the flow opening 19 connects.
  • the fan 11 draws in during operation axially outside air through the inflow opening 21 in the lid 15 of the cap 14. Characterized in that the inflow opening 21 is disposed immediately adjacent to the fan 11, the outside air flows directly into the fan 11, without flowing on the electronics, the IC 18 and the electric motor 4 along. As a result, heating of the intake air is avoided.
  • the (partial) air flow 27 flows along the upper side 20 of the printed circuit board 12 and is at least partially deflected by the air guide 22 by 90 ° in the direction of the underlying in the drawing plane flow opening 19 and thus passes directly to the plane below the printed circuit board 12th arranged on the top 20 of the circuit board 12 no electronics, the partial air flow 27 has barely heated upon reaching the IC 18 and therefore provides for effective cooling of the ICs.
  • the (partial) air flow 28 flows along the underside 13 of the circuit board 20, thus cooling the mounted on the circuit board 12 electronics.
  • FIG. 3 shows a schematic sectional illustration of a further exemplary embodiment of a radial blower 1 according to the invention.
  • the basic structure of the radial blower shown in FIG. 3 corresponds to the structure of the first exemplary embodiment described above.
  • the following will mainly deal with the differences between the two exemplary embodiments.
  • the inlet opening 21 for outside air is in the embodiment of a radial blower 1 shown in FIGS. 3 and 4 in the peripheral wall 16, immediately adjacent to the blower housing 3, respectively.
  • the inflow opening 21 is introduced immediately adjacent to the IC 18 in the peripheral wall 16.
  • the support 17 holding the IC is arranged at a right angle to the printed circuit board 12 so that the air flowing through the likewise provided throughflow opening 19 passes by the IC.
  • the electronics is arranged exclusively on the underside 13 of the printed circuit board 12.
  • a flow opening 29 is provided for the fan 11.
  • the fan wheel 11 is placed directly in the plane below the Anströmö réelle 29 and passes through the circuit board 12, unlike the first embodiment, not.
  • the fan 11 blows the sucked through the inflow opening 29 from the top 20 of the circuit board 12 air exclusively below the circuit board 12.
  • cup-shaped cover 14 is shown in a schematic view from below. In the peripheral wall 16, the inflow opening 21 can be seen for outside air.
  • the fan wheel 11 arranged below the printed circuit board 12 sucks in air from the upper side of the printed circuit board 12 through the opening 29. It should be additionally mentioned that the fan 11, the circuit board 12 of course, in the second embodiment can prevail - but it should be ensured that the fan 11 emits the sucked air exclusively on the bottom 13 of the circuit board 12.
  • Air flow passes through the inflow opening 21 into the interior of the cover cap 14. The still cool outside air strips on its way in the direction of flow opening 19 past the IC 18 and cools it.
  • the (partial) air stream 31 which has flowed out from the fan wheel 11 flows along the underside 13 of the printed circuit board 12 and thus cools the electronics arranged there.
  • baffles may be provided, which optionally prevent mixing of the air streams 30 and 31.
  • a further variant of the radial fan is not shown, in which the inflow opening is formed by a circumferential gap between the cap 14 and blower housing 3. Also not shown is a possible integration of one or more transmissions in the drive train between the electric motor 4 and fan 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
EP06004231.4A 2005-03-14 2006-03-02 Dispositif de réfroidissement pour ventilateur avec moteur électrique Not-in-force EP1703140B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005004274U DE202005004274U1 (de) 2005-03-14 2005-03-14 Elektromotorisch angetriebenes Radialgebläse mit IC

Publications (2)

Publication Number Publication Date
EP1703140A1 true EP1703140A1 (fr) 2006-09-20
EP1703140B1 EP1703140B1 (fr) 2014-05-07

Family

ID=36687974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06004231.4A Not-in-force EP1703140B1 (fr) 2005-03-14 2006-03-02 Dispositif de réfroidissement pour ventilateur avec moteur électrique

Country Status (3)

Country Link
US (1) US7453696B2 (fr)
EP (1) EP1703140B1 (fr)
DE (1) DE202005004274U1 (fr)

Cited By (15)

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US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance

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FR2920491B1 (fr) * 2007-09-03 2013-07-19 Siemens Vdo Automotive Groupe moto-ventilateur avec carte electronique de commande refroidie par air pulse
US8556601B2 (en) * 2009-12-16 2013-10-15 Pc-Fan Technology Inc. Heat-dissipating fan assembly
US8267674B2 (en) * 2010-02-04 2012-09-18 Robert Bosch Gmbh Centrifugal blower assembly
GB2493975B (en) * 2011-08-26 2015-02-11 Dyson Technology Ltd Turbomachine
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
DE102011090066A1 (de) * 2011-12-29 2013-07-04 Robert Bosch Gmbh Lüftermodul
TWI529306B (zh) * 2013-11-15 2016-04-11 建準電機工業股份有限公司 氣體鼓風裝置
DE102014112821A1 (de) 2014-09-05 2016-03-10 Ebm-Papst Mulfingen Gmbh & Co. Kg Lüfter mit Leiterplattenkühlkreislauf
US9912207B2 (en) 2015-03-23 2018-03-06 Regal Beloit America, Inc. Electrical machine housing and methods of assembling the same
JP6950422B2 (ja) * 2017-09-29 2021-10-13 日本電産株式会社 遠心ファン
FR3093141B1 (fr) * 2019-02-25 2021-01-22 Valeo Systemes Thermiques Groupe moto-ventilateur pour vehicule automobile
EP3702619B1 (fr) * 2019-02-26 2022-04-06 Ademco CZ s.r.o. Ensemble de ventilateur pour brûleur à gaz et ensemble comprenant l'ensemble de ventilateur
GB2586844B (en) 2019-09-05 2021-11-24 Dyson Technology Ltd A compressor
DE102019134357B4 (de) * 2019-12-13 2024-01-18 Auma Riester Gmbh & Co. Kg Stellantrieb mit Umluftbeheizung und Verfahren zum Trocknen eines Innenraums eines Stellantriebs
US11870316B2 (en) 2021-02-02 2024-01-09 Black & Decker, Inc. Brushless motor including a nested bearing bridge
CN116624429A (zh) * 2022-07-14 2023-08-22 利欧集团浙江泵业有限公司 一种立式泵用控制器结构

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FR2742813A1 (fr) * 1995-12-26 1997-06-27 Valeo Climatisation Ventilateur centrifuge, notamment pour vehicule automobile
FR2764747A1 (fr) * 1997-06-16 1998-12-18 Valeo Systemes Dessuyage Motoventilateur pour vehicule automobile avec refroidissement de la platine porte-balais
US6158979A (en) * 1997-07-17 2000-12-12 Valeo Climatisation And Valeo Thermique Moteur Device for fixing a motor-fan unit on a motor vehicle element, in particular a heat exchanger
DE19804255A1 (de) * 1998-02-04 1999-08-05 Deutz Ag Diffusorring für kompakte Drucklüfter-Einbauten
FR2827345A1 (fr) * 2001-07-13 2003-01-17 Sagem Motoventilateur a carte de commande integree
DE10204037A1 (de) 2002-02-01 2003-08-21 Motoren Ventilatoren Gmbh Radialgebläse mit Elektromotor

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10697632B2 (en) 2011-12-15 2020-06-30 Honeywell International Inc. Gas valve with communication link
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US10851993B2 (en) 2011-12-15 2020-12-01 Honeywell International Inc. Gas valve with overpressure diagnostics
US9657946B2 (en) 2012-09-15 2017-05-23 Honeywell International Inc. Burner control system
US11421875B2 (en) 2012-09-15 2022-08-23 Honeywell International Inc. Burner control system
US10422531B2 (en) 2012-09-15 2019-09-24 Honeywell International Inc. System and approach for controlling a combustion chamber
US9683674B2 (en) 2013-10-29 2017-06-20 Honeywell Technologies Sarl Regulating device
US10215291B2 (en) 2013-10-29 2019-02-26 Honeywell International Inc. Regulating device
US10024439B2 (en) 2013-12-16 2018-07-17 Honeywell International Inc. Valve over-travel mechanism
US9841122B2 (en) 2014-09-09 2017-12-12 Honeywell International Inc. Gas valve with electronic valve proving system
US10203049B2 (en) 2014-09-17 2019-02-12 Honeywell International Inc. Gas valve with electronic health monitoring
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
US10564062B2 (en) 2016-10-19 2020-02-18 Honeywell International Inc. Human-machine interface for gas valve
US11073281B2 (en) 2017-12-29 2021-07-27 Honeywell International Inc. Closed-loop programming and control of a combustion appliance
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module

Also Published As

Publication number Publication date
US7453696B2 (en) 2008-11-18
EP1703140B1 (fr) 2014-05-07
DE202005004274U1 (de) 2006-07-27
US20060202572A1 (en) 2006-09-14

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