EP1941164A1 - Vorrichtung zur förderung eines kühllufstromes - Google Patents
Vorrichtung zur förderung eines kühllufstromesInfo
- Publication number
- EP1941164A1 EP1941164A1 EP06806022A EP06806022A EP1941164A1 EP 1941164 A1 EP1941164 A1 EP 1941164A1 EP 06806022 A EP06806022 A EP 06806022A EP 06806022 A EP06806022 A EP 06806022A EP 1941164 A1 EP1941164 A1 EP 1941164A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- fan
- air flow
- heat sink
- cooling air
- 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
Links
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
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow 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
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
- F04D29/526—Details of the casing section radially opposing blade tips
-
- 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
-
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
Definitions
- the invention relates to a device for conveying a cooling air flow according to the preamble of claim 1.
- a radial fan for a heating and / or air conditioning of a motor vehicle wherein a motor holder is designed as a fan frame, on which a power electronics is arranged.
- the fan cowl is designed as a metal part and thus performs the resulting in the power electronics or the control unit heat loss indirectly from the sucked air from the fan.
- a radiator fan for motor vehicles has been known, ie a device for conveying a cooling air flow by means of an electric motor-driven axial fan for a coolant radiator of a motor vehicle.
- the drive has control electronics on a printed circuit board in an electronics housing, which is fastened to a fan cowl (fan cowl).
- the fan frame is attached to the radiator and has a Zargenö réelle in which a jacket fan rotates.
- the sucked by the radiator cooling air flow is thus channeled through the fan frame and conveyed through the frame opening.
- a heat sink with cooling fins is arranged, which protrude into the cooling air flow, either upstream or downstream of the fan.
- the cooling ribs protrude radially into the outer diameter of the fan or the fan casing. Disadvantages are on the one hand the additional axial space, on the other hand, the unwanted noise, especially in an arrangement of the cooling fins on the upstream side of the fan.
- the heat sink is arranged radially outside of the frame opening and is acted upon by a secondary flow of the cooling air flow.
- the heat sink, the elements for heat dissipation, z. B. in the form of cooling fins or cooling pins, thus does not protrude into the main cooling air flow - this results in the advantage that unpleasant noise can be avoided because the cooling air flow remains undisturbed.
- the fan is designed as a fan-type fan which, in the direction of airflow, is behind the door opening. tion or the Zargeneinlauf is arranged.
- a gap is left in the axial direction between the frame and fan shroud, whereby a side stream is generated, which sweeps over the cooling fins or cooling pins of the heat sink and thus achieves a cooling effect.
- the direction of the secondary current depends on the operating status of the fan or on the pressure gradient in front of and behind the fan. If the fan is sucked in from the area of the fan cowl, it also sucks in the sidestream via the gap, which produces a vertical vortex in the form of a recirculation flow. If the fan is over-blown, so that a higher pressure upstream of the fan than behind the fan, the direction of the bypass will reverse by adjusting a leakage current through the gap across the cooling fins. Also in this case, a cooling effect is achieved.
- the frame opening is bounded by a cylindrical Zargenring in which the shell fan rotates while radially outwardly of the Zargenringes a bypass channel is arranged, which leads over the heat sink or its heat dissipating elements.
- a bypass channel is arranged, which leads over the heat sink or its heat dissipating elements.
- the bypass channel acts as a true bypass, through which a secondary flow flows in the same direction as the main cooling air flow.
- a recirculation flow will be more likely to occur, i. H. the fan sucks already delivered cooling air via the bypass channel.
- a portion of the heat sink is disposed radially within the Zargenringes or the fan shroud, ie, a portion of the cooling fins or cooling pins protrudes into the main cooling air flow, on the downstream side of the fan.
- a portion of the heat dissipating elements is radially outward and another downstream portion radially outside and within the Zargenö réelle or the cladding diameter.
- the cooling fins or so-called cooling dome protrude with a different height from the base plate of the heat sink.
- the heat sink or its newly formed base plate extends both in the axial direction and in the circumferential direction.
- the height of the cooling fins or cooling pins is adapted to the diameter of the Zargenringes or the fan shroud, so that on the circumference an approximately equal distance between the cooling fins and Zargenrise is achieved , Even so, the advantage of improved cooling effect is achieved.
- FIG. 1 shows a fan control device with heat sink radially outside a fan shroud (first embodiment of the invention)
- FIG. 4 shows a second exemplary embodiment of the invention with a heat sink arranged radially outside a frame ring and a bypass channel for the heat sink, FIG.
- FIG. 5 shows a further exemplary embodiment of a heat sink
- FIG. 6 shows a third embodiment of the invention with heat sink, the cooling pins are arranged both radially outside of the shell fan and within the shell diameter,
- FIG. 7 shows the heat sink for the embodiment according to FIG. 6 in FIG.
- FIG. 9 shows the heat sink in cross section according to the line IX-IX, FIG.
- Fig. 10 shows the heat sink in longitudinal section along the line X-X and
- Fig. 11 shows the heat sink in a view.
- Fig. 1 shows a partially illustrated fan frame 1 with a frame opening 2, which is bounded by a Zargeneinlauf 3. Within the frame Opening 2 is arranged only a partially illustrated jacket fan 4, which also has only partially shown fan blades 4a and a connecting their sheath 5 mantle.
- the fan frame 1 corresponds in its entire training and function as the disclosed in the aforementioned prior art fan shroud for a coolant radiator of a motor vehicle and is thus downstream of a coolant radiator, not shown, or a cooling module of a motor vehicle.
- the fan 4 may be connected in a manner not shown with the frame 1 and is driven by an electric motor, not shown, which is controlled by a control unit 6.
- control unit 6 In the control unit 6, not shown electronic components, so-called power electronics are arranged, whose heat loss via a heat sink 7, connected to the control unit 6, is dissipated.
- a main cooling air flow is conveyed in the direction of the arrow L and sucked by the or the heat exchanger, not shown.
- an axial gap 8 is left, which allows a leakage or secondary air flow.
- the secondary flow is represented by dashed lines and denoted by N: with an intake fan 4, a recirculation flow in the form of a vortex N is formed, with the secondary flow being sucked in by the cooling air flow L through the gap 8 via the heat sink 7.
- the heat sink 7 is thus cooled by convection.
- the direction of the secondary flow N can then be reversed if the fan 4 is "over-blown” at a high vehicle speed, ie at a correspondingly high back pressure
- the fan 4 then no longer supplies the air flow with energy and acts as a resistance "push" a side stream through the gap 8, which extends over the heat sink 7 in the direction of a dotted arrow N '.
- Fig. 2 and Fig. 2a show the heat sink 7 in a plan view and a side view.
- a metallic, planar base plate 7a vertically projecting pins or so-called cooling domes 7b are arranged in rows and offset from one another.
- the air flow direction is indicated by an arrow P.
- the base plate 7a is in heat conductive connection with the power electronics of the control unit 6, so that the dissipated heat loss passes through the line in the cooling dome 7b, from where it is discharged via convection to an air flow.
- FIG. 3 and FIG. 3 a show a modified heat sink T with variable height of the cooling domes 7'b, which varies between a minimum height h ⁇ approximately in the middle and a maximum height h1 in the outer region.
- the height of the cooling domes 7'b is adapted to the circular circumference of the fan casing 5, so that a better cooling effect results.
- FIG. 4 shows a further exemplary embodiment of the invention with a fan frame 10, a circular frame opening 11, which is delimited by a hollow-cylindrical frame ring 12.
- a jacket fan 13 with partially indicated fan blades 13a and a jacket 14 to.
- the jacket 14 forms a radial gap 15 with the frame ring 12.
- the jacket 14 has an end-side inlet region 14a, and the frame ring 12 has an end-side inlet region 12a, which overlap in the radial direction.
- a control unit 16 is arranged, which is heat-conductively connected to a heat sink 17.
- the heat sink 17 has two plates 17a, 17b, through which a bypass channel 18 is formed, which communicates with a passage opening 19 in the fan frame 10 in flow communication.
- a bypass channel 18 Within the bypass channel 18 heat dissipating elements 17c are arranged.
- the bypass channel 18 allows a bypass flow, represented by dashed arrows N, to pass through-parallel to the main cooling air flow, represented by the arrow L.
- this bypass flow will only set if a corresponding overpressure exists within the fan cowl 10 , caused by a corresponding dynamic pressure prevails. Otherwise, d. H. with suction fan 13, the flow direction in the bypass channel 18 will reverse, and it will form a Rezirkulationsströmung, wherein the fan 13 already sucks already conveyed cooling air through the bypass channel 18 again.
- Fig. 5 shows the heat sink 17 for the embodiment of FIG. 4 with air flow direction P or P '.
- Cooling dome 17c On the base plate 17a are turn Cooling dome 17c arranged, which are bounded laterally by channel walls 17d, 17e.
- the cooling domes 17c are in turn arranged in rows and offset from each other, so that there is a very good cooling effect by convection.
- Fig. 6 shows a third embodiment of the invention with a frame 20, which has a Zargenö réelle 21, which is bounded by an approximately bell-shaped Zargeneinlauf 22.
- a jacket fan 23 is arranged with a jacket 24, wherein the jacket is arranged in the air flow direction L downstream of the Zargeneinlaufes 22 is arranged.
- an axial gap 25 is left, which generates a leakage or secondary flow.
- a fan control unit 26 is arranged, which is heat-conductively connected to a base plate 27 a of a heat sink 27.
- the shorter cooling domes 27b are arranged radially outside the fan casing 24, while the downstream (in the direction of the arrows L) cooling domes 27c have a greater height and extend into the main cooling air flow L, d. H. extend into the diameter of the fan shroud 24.
- the tips of the cooling domes 27c are thus flowed around and cooled by the main cooling air flow L.
- the shorter cooling domes 27b are surrounded by a secondary flow, represented by the arrows N, which adjusts as a result of the fan rotation and the axial gap 25.
- the secondary flow N is thus directed substantially counter to the main stream L.
- cooling domes 27b, 27c Due to the combination of cooling domes 27b, 27c extending radially outside the fan casing 24 and radially inside the shell diameter, an enhanced cooling effect, i. H. achieves a better heat dissipation of the power loss.
- FIGS. 7 to 11 show the heat sink 27 for the exemplary embodiment according to FIG. 6.
- FIG. 7 shows an isometric view of the heat sink 27, wherein the different heights of the cooling domes 27b, 27c are clearly recognizable. are bar. The change in height takes place both in the axial direction and in the circumferential direction.
- Fig. 8 shows a plan view of the heat sink 27 with staggered the arrangement of the cooling dome 27b, 27c.
- FIG. 9 shows a cross section along the line IX-IX 1, wherein the different heights h1 for the shorter cooling domes 27b and the heights h2 for the longer cooling domes 27c are shown.
- Fig. 10 a longitudinal section along the line XX, shows that the height of the cooling dome 27b also varies in the circumferential direction, along a circular arc K, which corresponds to the circumference of the fan shroud 24 (see Fig. 6).
- FIG. 11 shows the heat sink 27 in a view, again showing the varying height of the cooling domes adapted to circular arcs K and KO.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005050685A DE102005050685A1 (de) | 2005-10-20 | 2005-10-20 | Vorrichtung zur Förderung eines Kühlluftstromes |
PCT/EP2006/009582 WO2007045355A1 (de) | 2005-10-20 | 2006-10-04 | Vorrichtung zur förderung eines kühllufstromes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1941164A1 true EP1941164A1 (de) | 2008-07-09 |
EP1941164B1 EP1941164B1 (de) | 2016-12-14 |
Family
ID=37750461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06806022.7A Not-in-force EP1941164B1 (de) | 2005-10-20 | 2006-10-04 | Vorrichtung zur förderung eines kühlluftstromes |
Country Status (4)
Country | Link |
---|---|
US (1) | US8230910B2 (de) |
EP (1) | EP1941164B1 (de) |
DE (1) | DE102005050685A1 (de) |
WO (1) | WO2007045355A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106341007B (zh) * | 2015-07-06 | 2019-08-23 | 浙江三花汽车零部件有限公司 | 电驱动泵的制造方法 |
US10746024B2 (en) * | 2018-05-15 | 2020-08-18 | Asia Vital Components Co., Ltd. | Fan noise-lowering structure |
FR3092657B1 (fr) * | 2019-02-12 | 2021-02-19 | Valeo Systemes Thermiques | Dissipateur thermique pour carte electronique d’un groupe moto-ventilateur de vehicule automobile |
FR3093141B1 (fr) * | 2019-02-25 | 2021-01-22 | Valeo Systemes Thermiques | Groupe moto-ventilateur pour vehicule automobile |
CN111486132B (zh) * | 2020-04-24 | 2021-10-08 | 上海交通大学 | 一种改善散热风扇返流的引流降噪装置及其方法 |
US12038241B2 (en) * | 2020-07-28 | 2024-07-16 | Kyle Borden Marquis | Layered radiator for efficient heat rejection |
US11951797B2 (en) * | 2021-06-03 | 2024-04-09 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Cooling pack assembly |
Family Cites Families (33)
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US2541852A (en) * | 1949-12-22 | 1951-02-13 | Gen Electric | Variable electric resistance device |
JPS5837919U (ja) * | 1981-09-04 | 1983-03-11 | 日産自動車株式会社 | 自動車用オルタネ−タの冷却装置 |
DE3523223A1 (de) | 1985-06-28 | 1987-01-02 | Sueddeutsche Kuehler Behr | Als motorhalter ausgebildete luefterzarge |
US4709560A (en) | 1986-12-04 | 1987-12-01 | Carrier Corporation | Control module cooling |
DE3703873A1 (de) | 1987-02-07 | 1988-08-18 | Sueddeutsche Kuehler Behr | Kuehlkoerper, insbesondere zum kuehlen elektronischer bauelemente |
KR920000868Y1 (ko) * | 1988-07-08 | 1992-01-31 | 지이제루 기기 가부시기가이샤 | 송풍기 제어용의 조절장치 |
US5216983A (en) * | 1992-10-26 | 1993-06-08 | Harvard Industries, Inc. | Vehicle hydraulic cooling fan system |
EP0652375A1 (de) * | 1993-11-05 | 1995-05-10 | General Motors Corporation | Gebläseeinheit |
US5563570A (en) * | 1994-07-01 | 1996-10-08 | Dong A Electric Parts Co., Ltd. | Resistor device for controlling a rotational speed of a motor |
US5481433A (en) * | 1994-07-01 | 1996-01-02 | Chrysler Corporation | Heat dissipation from high power semiconductors in an electrical vehicle |
DE4441039C1 (de) * | 1994-11-18 | 1996-05-15 | Fichtel & Sachs Ag | Flüssigkeitsreibungskupplung mit einem Kühlluftventilator |
FR2734348B1 (fr) * | 1995-05-18 | 1997-07-04 | Valeo Thermique Moteur Sa | Echangeur de chaleur muni d'un capteur de temperature pour vehicule automobile |
JPH0979188A (ja) * | 1995-09-12 | 1997-03-25 | Zexel Corp | ブロワ装置 |
JP3330807B2 (ja) * | 1995-12-12 | 2002-09-30 | カルソニックカンセイ株式会社 | 自動車用空気調和装置の送風制御装置 |
JPH09261915A (ja) * | 1996-03-22 | 1997-10-03 | Asmo Co Ltd | 電動ファン装置 |
DE19612679C2 (de) * | 1996-03-29 | 2003-10-30 | Temic Auto Electr Motors Gmbh | Kühlerventilator für Kraftfahrzeuge |
JP3633190B2 (ja) * | 1997-03-11 | 2005-03-30 | 株式会社デンソー | 自動車用熱交換装置 |
FR2764747B1 (fr) * | 1997-06-16 | 1999-09-03 | Valeo Systemes Dessuyage | Motoventilateur pour vehicule automobile avec refroidissement de la platine porte-balais |
US5859581A (en) * | 1997-06-20 | 1999-01-12 | International Resistive Company, Inc. | Thick film resistor assembly for fan controller |
JPH11229876A (ja) * | 1997-12-10 | 1999-08-24 | Denso Corp | 自動車用冷却装置 |
FR2772844B1 (fr) * | 1997-12-23 | 2000-03-03 | Valeo Thermique Moteur Sa | Dispositif de canalisation d'un flux d'air, notamment pour vehicule automobile |
DE19949322C1 (de) * | 1999-10-13 | 2001-01-25 | Temic Auto Electr Motors Gmbh | Kühlgebläse, insbesondere Kühlerventilator für Kraftfahrzeuge |
DE19949321C1 (de) | 1999-10-13 | 2001-05-03 | Temic Auto Electr Motors Gmbh | Kühlerventilator für Kraftfahrzeuge |
JP3354539B2 (ja) * | 1999-12-07 | 2002-12-09 | 三洋電機株式会社 | 自動車用空調装置 |
US6883589B2 (en) * | 2000-01-31 | 2005-04-26 | Denso Corporation | Front end structure |
DE10052331A1 (de) * | 2000-10-17 | 2002-05-02 | Stribel Gmbh | Lüfteranlage |
USD464327S1 (en) * | 2001-03-27 | 2002-10-15 | Molded Products Company | Resistive motor speed control |
FR2827345A1 (fr) * | 2001-07-13 | 2003-01-17 | Sagem | Motoventilateur a carte de commande integree |
DE10321732B4 (de) * | 2003-05-14 | 2013-08-01 | Robert Bosch Gmbh | Kühlung der Ansteuerung von Kühlgebläsen für Kraftfahrzeugmotoren |
JP2008207645A (ja) * | 2007-02-26 | 2008-09-11 | Denso Corp | 車両用空調装置 |
CN101610658B (zh) * | 2008-06-20 | 2012-07-18 | 富准精密工业(深圳)有限公司 | 散热装置 |
US7992664B2 (en) * | 2008-09-23 | 2011-08-09 | Kunststoff Schwanden Ag | Jalousie for a vehicle |
US20100154468A1 (en) * | 2008-12-22 | 2010-06-24 | Denso International America, Inc. | Air flow around blower resistor and at evaporator |
-
2005
- 2005-10-20 DE DE102005050685A patent/DE102005050685A1/de not_active Withdrawn
-
2006
- 2006-10-04 EP EP06806022.7A patent/EP1941164B1/de not_active Not-in-force
- 2006-10-04 WO PCT/EP2006/009582 patent/WO2007045355A1/de active Application Filing
- 2006-10-04 US US12/090,567 patent/US8230910B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007045355A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102005050685A1 (de) | 2007-05-03 |
US8230910B2 (en) | 2012-07-31 |
WO2007045355A1 (de) | 2007-04-26 |
EP1941164B1 (de) | 2016-12-14 |
US20080264600A1 (en) | 2008-10-30 |
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