EP2894351A1 - Autonome Kühlplatte zum Abkühlen der elektronischen Komponenten eines elektrischen Ventilators - Google Patents

Autonome Kühlplatte zum Abkühlen der elektronischen Komponenten eines elektrischen Ventilators Download PDF

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Publication number
EP2894351A1
EP2894351A1 EP15150493.3A EP15150493A EP2894351A1 EP 2894351 A1 EP2894351 A1 EP 2894351A1 EP 15150493 A EP15150493 A EP 15150493A EP 2894351 A1 EP2894351 A1 EP 2894351A1
Authority
EP
European Patent Office
Prior art keywords
air
cooling
fan
cooling duct
fan according
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
EP15150493.3A
Other languages
English (en)
French (fr)
Other versions
EP2894351B1 (de
Inventor
Fabien Del Rio
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.)
Safran Ventilation Systems SAS
Original Assignee
Technofan SA
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Filing date
Publication date
Application filed by Technofan SA filed Critical Technofan SA
Publication of EP2894351A1 publication Critical patent/EP2894351A1/de
Application granted granted Critical
Publication of EP2894351B1 publication Critical patent/EP2894351B1/de
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • 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
    • F04D25/068—Mechanical details of the pump control unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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

  • fans are powered by the electrical network of the aircraft.
  • the fan is equipped with an electrical control circuit which, by its operation, produces heat.
  • the document US 2012/0236498 discloses a fan comprising cooling means of the electrical circuit formed by a quill opening into the air duct of the fan and adapted to take a secondary cooling flow which circulates between the electronic components of the circuit to ensure their cooling.
  • This arrangement even if it does not reduce the ventilation efficiency of the fan by the presence of a radiator in the air stream, is of limited efficiency, the speed of the cooling flow around the components being low and the arrangement can lead to the transmission of pollutants to the components from the air duct of the fan.
  • the object of the invention is to propose a fan, in particular for an aircraft, in which the cooling of the electric control circuit is effective, without reducing the ventilation efficiency of the fan.
  • the fan 10 illustrated on the figure 1 is a fan for an airplane or a helicopter. It is adapted to be installed on an air conditioning circuit for the cabin to ensure the setting in motion of a flow of air. Its flow rate is between 50 ls -1 and 1500 ls -1 , and in particular between 100 ls -1 and 750 ls -1 , for example 470 ls -1
  • It comprises an outer shell 12 delimiting an air stream 14, flowing from an inlet 16 of the fan to an outlet 18.
  • the shell 12 has an inner surface 20 defining the air stream.
  • This surface is cylindrical of circular section of general axis X-X forming the fan axis.
  • a motor 22 is provided along the X-X axis. This motor is carried by support arms 24 connecting the stator of the motor to the shell 12.
  • a wheel 26 provided with blades 28 is mounted on the rotor of the motor on the side of the air inlet 16.
  • An ogive 29 extends the motor 22 opposite the wheel 26.
  • a ring of fins 30 forming an air straightener extends around the motor 22 downstream of the blades 28 of the wheel.
  • the air stream 24 produced by the rotation of the wheel 26 flows between the inner surface 20 of the ferrule and the outer surface of the motor 22 and the ogive 29.
  • the fan finally comprises a circuit 40 for controlling and supplying the motor 22.
  • This circuit is connected to the power supply network 42 of the aircraft at the input and to the motor 22 at the output.
  • the circuit 40 comprises a set of electronic components such as coils 44 carried by cores 46 extending radially to the outer surface of the ferrule 12.
  • the components are fixed on the outer surface of the ferrule 12 in thermal contact with the ferrule 12. this.
  • the shell 12 comprises a generally cylindrical pipe 47 and a support base 48 of the circuit 40.
  • the tubing 47 has an oblong slot extending along a length of the tubing corresponding substantially to the right of the motor 22.
  • the base 48 is received in this slot and is sealed therein for the air stream.
  • the surfaces of the tubing 47 and the base 48 turned towards the engine and both cylindrical of the same curvatures are flush with each other.
  • the base 48 projects radially outwardly from the tubing 47.
  • the base 48 is shown alone on the figure 2 .
  • Cooling passages of the components are provided through the shell 12 and in particular the base 48 in the embodiment considered.
  • These passages comprise continuous conduits 50 flowing in the thickness of the ferrule. They are generally parallel to the X-X axis and open into the air stream from an inlet tapping 52 and one or more air reintroduction taps 54, 56.
  • the inlet tapping 52 is disposed upstream of the outlet tapping 54, 56 by considering the direction of flow of the air stream.
  • the ducts 50 comprise a main section 60 extending longitudinally. This section is rectilinear and extends beyond the extreme taps 52 and 56. This section is closed at each end by plugs 61 formed for example of polymer pad force-fitted.
  • connections 52, 54, 56 are formed by radial bores 62, 64, 66 opening in the main section 60 and in the air stream through the inner surface of the shell 12 by the corresponding stitching.
  • the radial bores 62, 64, 68 which connect the main section 60 to the inner surface of the shell 12 are made at positions depending on the position of the motor 22 and the wheel 26. This makes it possible to use the same blank of base in fans of different structure by piercing the connections appropriately. Thus, the same part can be used in several types of fan, by positioning the radial holes at the right of the desired inlet and outlet connections.
  • the outer shell, and in particular the base is formed by extrusion in a die, the straight sections 50 being formed by removable inserts ensuring a reservation in the shell during its extrusion .
  • the average diameter of each duct is greater than 4 mm. It is preferably between 4 and 8 mm and advantageously substantially equal to 6 mm.
  • the conduits 50 are dimensioned so that the speed in the ducts is greater than 10 ms -1 , and preferably greater than 30 ms -1 .
  • the dimensioning is such that less than 5% of the total flow of the fan flows through the cooling ducts 50. Ideally, a flow rate of about 2% of the total flow circulates through the cooling ducts 50.
  • the number of ducts is equal to 7. It is preferably between 2 and 12.

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)
EP15150493.3A 2014-01-09 2015-01-08 Autonome Kühlplatte zum Abkühlen der elektronischen Komponenten eines elektrischen Ventilators Active EP2894351B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1450143A FR3016197B1 (fr) 2014-01-09 2014-01-09 Plaque froide autonome pour refroidissement des composants electroniques d'un ventilateur electrique

Publications (2)

Publication Number Publication Date
EP2894351A1 true EP2894351A1 (de) 2015-07-15
EP2894351B1 EP2894351B1 (de) 2019-12-04

Family

ID=51063527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15150493.3A Active EP2894351B1 (de) 2014-01-09 2015-01-08 Autonome Kühlplatte zum Abkühlen der elektronischen Komponenten eines elektrischen Ventilators

Country Status (3)

Country Link
US (1) US10018200B2 (de)
EP (1) EP2894351B1 (de)
FR (1) FR3016197B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6126421B2 (ja) * 2013-03-21 2017-05-10 三菱重工オートモーティブサーマルシステムズ株式会社 モータファン

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2397171A (en) * 1943-12-06 1946-03-26 Del Conveyor & Mfg Company Fan and motor mounting
US2469820A (en) * 1945-06-01 1949-05-10 Singer Mfg Co Dynamoelectric machine
US3229896A (en) * 1963-11-05 1966-01-18 American Agile Co Vaneaxial fan
GB1130700A (en) * 1966-11-18 1968-10-16 Porsche Kg Axial-flow cooling air blower for internal combustion engines
WO2008109038A2 (en) * 2007-03-05 2008-09-12 Xcelaero Corporation Reverse flow cooling for fan motor
EP2186704A1 (de) * 2007-09-10 2010-05-19 Mitsubishi Electric Corporation Antriebsvorrichtung für fahrzeug
US20120236498A1 (en) 2011-03-17 2012-09-20 Hamilton Sundstrand Corporation Integrated fan motor and controller housing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871534B1 (fr) * 2004-06-15 2006-08-04 Siemens Vdo Automotive Sas Groupe moto ventilateur a commande electronique refroidie par air ambiant pulse
US20120243177A1 (en) * 2011-03-21 2012-09-27 Hamilton Sundstrand Corporation Indirect bleed air cooling of a fan motor controller

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2397171A (en) * 1943-12-06 1946-03-26 Del Conveyor & Mfg Company Fan and motor mounting
US2469820A (en) * 1945-06-01 1949-05-10 Singer Mfg Co Dynamoelectric machine
US3229896A (en) * 1963-11-05 1966-01-18 American Agile Co Vaneaxial fan
GB1130700A (en) * 1966-11-18 1968-10-16 Porsche Kg Axial-flow cooling air blower for internal combustion engines
WO2008109038A2 (en) * 2007-03-05 2008-09-12 Xcelaero Corporation Reverse flow cooling for fan motor
EP2186704A1 (de) * 2007-09-10 2010-05-19 Mitsubishi Electric Corporation Antriebsvorrichtung für fahrzeug
US20120236498A1 (en) 2011-03-17 2012-09-20 Hamilton Sundstrand Corporation Integrated fan motor and controller housing

Also Published As

Publication number Publication date
FR3016197B1 (fr) 2019-05-24
FR3016197A1 (fr) 2015-07-10
US10018200B2 (en) 2018-07-10
EP2894351B1 (de) 2019-12-04
US20150192137A1 (en) 2015-07-09

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