CN101965459A - Electric fan - Google Patents

Electric fan Download PDF

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Publication number
CN101965459A
CN101965459A CN2009801081431A CN200980108143A CN101965459A CN 101965459 A CN101965459 A CN 101965459A CN 2009801081431 A CN2009801081431 A CN 2009801081431A CN 200980108143 A CN200980108143 A CN 200980108143A CN 101965459 A CN101965459 A CN 101965459A
Authority
CN
China
Prior art keywords
safety cover
electric fan
motor
control device
described electric
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.)
Pending
Application number
CN2009801081431A
Other languages
Chinese (zh)
Inventor
埃里克·考帕特
艾伦·布森
菲利普·布拉雄
马克西姆·菲奥拉尼
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.)
Moteurs Leroy Somer SA
Original Assignee
Moteurs Leroy Somer SA
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 Moteurs Leroy Somer SA filed Critical Moteurs Leroy Somer SA
Publication of CN101965459A publication Critical patent/CN101965459A/en
Pending 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
    • 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
    • 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
    • F04D25/08—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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • 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
    • F04D29/5806—Cooling the drive system

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  • 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)

Abstract

The present invention relates to an electric fan (1) comprising a shroud (7), a motor, a rotary assembly (2) comprising at least one blade (5) rotated by the motor in such a way as to create an airflow inside the shroud, an electronic control device (10) for controlling the motor positioned at least partially on the shroud (7), the shroud (7) being made of metal and the electronic control device (10) comprising a radiator (13) to dissipate the heat generated by at least one electronic component of the control device (10), this radiator (13) being fixed to the shroud (7).

Description

Electric fan
Technical field
Theme of the present invention relates to the fan that is driven by built-in motor, is also referred to as electric fan.
Background technique
Motor is controlled by electric control device.
In known electric fan, electric control device is arranged to the rear portion and the motor being aligned of motor.
Electric control device is exposed to the air stream that is produced by the rotation of fan, for example, according to applicable cases, air stream can be heat and reach 70 ℃ temperature.Similarly, the heating heat of motor can be passed to electric control device.These two factors can limit the reliability and the performance of electric control device.
In addition, the bigger axial overall dimensions of electric fan appears causing to the rear portion of motor in electric control device.
US 5 615 999 discloses a kind of fan that comprises safety cover, and the control gear of motor is fixed to safety cover.
EP 1 712 799 discloses a kind of fan that is used to be installed on the printed circuit.
Therefore, require further improvement electric fan, with the advantage that makes that especially electric fan has little axial overall dimensions and operates reliably.
Summary of the invention
The objective of the invention is to respond these needs, this purpose realizes that by a kind of electric fan is provided this electric fan comprises:
-safety cover,
-drive motor,
-swivel assembly comprises the blade that at least one rotates in the mode that produces air stream in safety cover by motor driving,
-be used to control the electric control device of motor,
Electric fan is characterised in that electric control device is arranged on the safety cover at least in part and preferably fully.
For example, electric control device is disposed on the tube wall of safety cover.
The electric control device of motor is placed in outside the main air flow that rotation produced by blade, and this makes it possible to improve reliability and performance.In addition, electric control device is not coupled with motor heat, prevents that electric control device is by being heated with contacting of motor.
In addition, the electric control device that is arranged on the safety cover is conveniently changed when needed.
The present invention also has the compact more in the axial direction advantage of fan, and this confirms that to transportation or packing be favourable.Safety cover can be used as radiator, and helps by conduction cool electronic control gear.
Electric control device for example is placed on the safety cover, occupies the axial position substantially the same with blade.
Electric control device preferably is fixed to the radial outside of safety cover.The main air flow in fan downstream can cause the surrounding atmosphere on the periphery of suction fan, and control electronics is placed on the radial outside of safety cover and can makes it to cool off by forced convection.
Safety cover can have the surface of symmetry circle, for example substantial cylindrical on its radially inner side, its axis is consistent with the spin axis of swivel assembly.
For example, safety cover extends axially the either side to swivel assembly.Safety cover can extend axially the electric control device that exceeds on the approaching side of the air that enters electric fan.Electric control device is nearer apart from the axial end corresponding to air inlet of safety cover apart from the axial end ratio corresponding to air outlet slit of safety cover.This can further improve by the cooling of surrounding atmosphere to electric control device.
For example, with metal for example steel make safety cover.Select metal particularly steel can promote cooling by conduction.
Swivel assembly can be included in the safety cover fully.
Electric fan can comprise inflector, is used for guiding towards control gear the stream of the enclosing region that is caused by the main air flow that leaves electric fan in the electric fan outside, with its cooling by convection current of further improvement.
Electric control device can comprise the semi-conductor electricity sub-element and for example have variable speed driving function.
Electric control device can comprise the electronic control circuit that is encapsulated at least in part in the thermal conductive resin.
Electric control device can be connected to motor by plug-in system.
For example, plug-in system comprises the connector on the side that is placed in motor.
For example, motor is a brshless DC motor.
Motor can be transmitted in the power between the 0.1kW to 7.5kW.
Device can comprise the radiator that is used to discharge the heat that at least one electronic component by control gear produces, and this radiator is fixed to safety cover.
For example, radiator directly is fixed to safety cover.Radiator can comprise the cooling fin that is parallel to the spin axis orientation.
Alternatively, radiator can be fixed to safety cover indirectly, is carried by control gear, and for example, control gear is fixed to safety cover.For example, radiator is taked the form by the cooling fin of the outer surface of control gear carrying.
For example, motor is supported by the grille with the safety cover one, is attached to grille especially.
Motor can extend axially the either side to grille.
Electric control device can comprise radiating fin perpendicular to the spin axis orientation at its radial outside.
Control gear can be axially from the preceding axial end of safety cover and back axial end indentation (set back).
For example, swivel assembly rotates in safety cover fully.
Safety cover can be configured for being attached to the independent sector on the wall of the housing that comprises equipment to be ventilated.
Description of drawings
By reading hereinafter the description of non-limiting example of the present invention and can understand the present invention better with reference to the accompanying drawings, in the accompanying drawing:
Fig. 1 and Fig. 2 are respectively the front elevation and the rear view of the electric fan of the first embodiment of the present invention;
Fig. 3 more specifically illustrates electric control device;
Fig. 4 and Fig. 5 are the schematic representation in the axial cross section of example of electric fan of the present invention; And
Fig. 6 and Fig. 7 illustrate the electric fan of another embodiment of the present invention.
Embodiment
Fig. 1 and Fig. 2 illustrate the electric fan 1 of the first embodiment of the present invention.This electric fan 1 comprises swivel assembly, and swivel assembly comprises the wheel hub 3 that supports a plurality of flanges 4, and blade 5 is fixed to flange 4.
Swivel assembly 2 for example is similar to the applicant's application EP 1 571 345 disclosed assemblies.
Electric fan 1 comprises safety cover 7, and swivel assembly 2 rotates around spin axis X in this safety cover 7.
Safety cover 7 for example has circular inner radial surface, and its diameter is adapted to the diameter of swivel assembly 2.This surface can be limited by the wall that comprises the circular cylinder shape part with axis X, forms air guide member.Safety cover 7 can have the hole that the radially outward by this wall of safety cover 7 is bent to form, to limit the suction angle.
Safety cover 7 can be included in the flange at front and rear place, and these flanges can be one with above-mentioned wall.
Electric fan 1 can be fixed to any structure that is used to support it by different means of fixation, for example is fixed in the opening that passes on wall or the framework.In one example, safety cover 7 and bracket-shaped being integral.In another embodiment, the anterior lip of safety cover is fixed to wall.
Certainly, the present invention is not restricted to for example described safety cover.In a unshowned modification, blade 5 extends axially and exceeds safety cover.
For example, safety cover 7 can be the independent sector that is attached to framework or wall, and this wall for example is the wall that comprises the box of heat exchanger, and this wall limits top or other parts of this box.
Alternatively, for example, because the impact briquetting of safety cover, safety cover 7 can be whole or be partly formed by wall.
In the example shown, with metal for example steel make safety cover 7.Alternatively, safety cover can be aluminium or make by composite or composite material.
Electric fan 1 comprises the electrocardiograph 9 that is used for the rotation of rotary driving assembly.
In described example, motor is a brushless electric machine, and alternatively, this motor can be asynchronous motor or the direct current generator with brush.
Be placed in grille 23 support motor 9 at the place, rear portion of electric fan 1, this grille 23 is fixed to safety cover 7.
Grille 23 can have enough little hole, is not subjected to the harm relevant with the rotation of blade 5 with the protection people.
Electric fan 1 comprises the control gear 10 that is used for motor 9, and in described example, this control gear 10 is placed on the radially-outer surface 8 of safety cover 7.
Control gear 10 and motor 9 advantageously are connected by plug-in system 12.Insert connected system and can comprise connector, this connector is placed on the side of motor 9 on the part at the rear portion of the close grille 23 of motor.Cable can be connected to this connector electronic equipment 10.
Electric control device 10 can comprise one or more a plurality of power semiconductor electronic switch, and has variable speed driving function.This electric control device 10 also can produce rotatable stator magnetic field, is used to drive the rotation of rotor.
Electric control device 10 can comprise electronic circuit, and this electronic circuit comprises above-mentioned electronic switch (or more a plurality of) and one or more a plurality of radiator 13, is used to discharge the heat that is produced by these parts.
Electric control device 10 can be fixed to safety cover 7 by means of such radiating fin 13 or by means of any support that other is used for electronic circuit.
In a unshowned modification, safety cover 7 is provided with radial wall, and this radial wall replaces radiator 13, and perhaps electronic circuit is fixed to this radial wall.
At least some of the electronic component of electronic equipment 10 or even all can be encapsulated in transmission of heat, the electric insulation resin epoxy resin for example.
Electronic equipment 10 can comprise the overlay electronic circuit at least in part and housing that can hold the wire board of the electrical connection that is used for electric fan.
As shown in the figure, radiator 13 can comprise the radiating fin 100 that is roughly parallel to spin axis X orientation, and in the example shown, lower floor's wall that this radiator 13 is approximately perpendicular to safety cover 7 extends.
Electronic equipment 10 can comprise the radiating fin 110 perpendicular to the axis X orientation equally on its outermost radial outside.
In Fig. 6 and example shown in Figure 7, the safety cover 7 shown in it similarly is transparent, and radiator is integrated into electronic equipment 10, and electronic equipment 10 directly is fixed to safety cover 7.
In described example, for example be similar to cooling fin 200 and 210 housing carryings respectively by electronic equipment 10 with reference to figure 3 described radiating fin 100 and 110 orientations.
The cooling fin 200 that is roughly parallel to spin axis X orientation is for example carried by the face 15 in the face of safety cover 7 of housing, and is carried by the side 16 of housing with respect to the cooling fin 210 of axis X vertical orientation.
As can seeing in Fig. 4, when swivel assembly 2 rotations, the main air flow F of the heat in electric fan 1 downstream is tending towards being created in the second suction streams F ' of surrounding atmosphere of the periphery of electric fan 1.
Control gear 10 is advantageously provided on safety cover 7, plunders to be blown by this stream F '.
Especially, but that electronic equipment 10 axially locating become is nearer than the axial end 7a corresponding to inlet apart from safety cover apart from the axial end 7b corresponding to air outlet slit of safety cover.
In modification shown in Figure 5, electric fan has at least one inflector 16, two inflectors 16 for example, it advantageously places on the control gear 10, and with the stream F ' towards control gear 10 guiding surrounding atmospheres, this can make it possible to further improve the cooling by convection current.Alternatively, one or more a plurality of commutator 16 can be by safety cover 7 carryings.
In the example shown, control gear 10 is arranged on the radially-outer surface 8 of safety cover 7, and at least in part with swivel assembly 2 axial overlaps.
The present invention is not restricted to such example, certainly with other mode positioning device 10.
Expression " comprising one " is appreciated that and expresses " comprising at least one " synonym.

Claims (18)

1. an electric fan (1) comprising:
-safety cover (7);
-motor (9);
-swivel assembly (2), this swivel assembly comprise at least one blade (5), and described at least one blade is rotated by described motor driving in the mode that produces air stream (F) in described safety cover; With
-electric control device (10) is used for controlling the described motor that is arranged at least in part on the described safety cover (7),
Described safety cover (7) is made of metal, and described electric control device (10) comprises radiator (13), and to disperse the heat by at least one electronic component generation of described control gear (10), this radiator (13) is fixed to described safety cover (7).
2. electric fan according to claim 1, wherein, described electric control device (10) is arranged on the described safety cover fully, particularly is arranged in fully on the tube wall of described safety cover.
3. according to claim 1 or 2 described electric fans, wherein, described electric control device (10) is fixed to the radially outer side (8) of described safety cover (7).
4. according to each described electric fan in the aforementioned claim, wherein, described safety cover (7) extends axially to the either side of described swivel assembly (2).
5. electric fan according to claim 4, wherein, the axial end corresponding to air outlet slit of the described safety cover of described control gear (10) distance is nearer than the axial end corresponding to air inlet of the described safety cover of distance.
6. according to each described electric fan in the aforementioned claim, wherein, described safety cover (7) is formed from steel.
7. according to each described electric fan in the aforementioned claim, wherein, described electric fan comprises at least one inflector (16), is used for towards described control gear (10) guiding in described electric fan outside by the caused flow of ambient air of the main air flow that leaves described electric fan (F) (F ').
8. according to each described electric fan in the aforementioned claim, wherein, described control gear (10) has variable speed driving function.
9. according to each described electric fan in the aforementioned claim, wherein, described control gear (10) is connected to described motor (9) by at least one plug-in system (12), and this plug-in system (12) preferably includes the connector (120) on the side that is arranged in described motor.
10. according to each described electric fan in the aforementioned claim, wherein, described motor (9) is a brushless electric machine.
11. according to each described electric fan in the claim 1 to 10, wherein, described radiator (13) comprises the directed radiating fin (100) of spin axis (X) that is parallel to described swivel assembly (2).
12. according to each described electric fan in the claim 1 to 11, wherein, described device (10) comprises the electronic circuit that is encapsulated in the resin.
13. according to each described electric fan in the claim 1 to 12, wherein, described motor (19) is supported by grille (23), described grille (23) forms one with described safety cover (7), and especially, described grille (23) is attached to described safety cover (7).
14. electric fan according to claim 13, wherein, described motor shaft is to the either side that extends to described grille.
15. according to each described electric fan in the claim 1 to 14, wherein, described electric control device (10) comprises on its radial outside perpendicular to the directed radiating fin (110) of described spin axis (X).
16. according to each described electric fan in the claim 1 to 15, wherein, described electric control device (10) is from the preceding axial end and the axial indentation of back axial end of described safety cover (7).
17. according to each described electric fan in the aforementioned claim, wherein, described assembly (2) rotates in described safety cover fully.
18. according to each described electric fan in the aforementioned claim, wherein, described safety cover (7) is configured for being attached to the independent sector on the wall that comprises the housing of waiting the equipment that ventilated.
CN2009801081431A 2008-03-10 2009-03-09 Electric fan Pending CN101965459A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0851535A FR2928426A1 (en) 2008-03-10 2008-03-10 FAN MOTOR
FR0851535 2008-03-10
PCT/FR2009/050380 WO2009115752A2 (en) 2008-03-10 2009-03-09 Electric fan

Publications (1)

Publication Number Publication Date
CN101965459A true CN101965459A (en) 2011-02-02

Family

ID=39855043

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009801081431A Pending CN101965459A (en) 2008-03-10 2009-03-09 Electric fan

Country Status (4)

Country Link
EP (1) EP2250377A2 (en)
CN (1) CN101965459A (en)
FR (1) FR2928426A1 (en)
WO (1) WO2009115752A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322447A (en) * 2011-08-24 2012-01-18 天津通天科技有限公司 Exhaust fan for wind power engine room
CN102957227A (en) * 2011-08-26 2013-03-06 德昌电机(深圳)有限公司 Brushless motor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106246571A (en) * 2016-08-18 2016-12-21 孟玲 A kind of portable electric fan for automotive engineering field
CN111550422B (en) * 2020-05-15 2022-04-26 杭州余杭特种风机有限公司 Fan shell is installed soon to multi-angle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118594A (en) * 1960-04-22 1964-01-21 Helmbold Theodor Methods for reducing fluid drag on bodies immersed in a fluid
US3173605A (en) * 1963-06-21 1965-03-16 Rotron Mfg Co Fan housing
US5615999A (en) * 1995-05-25 1997-04-01 Sukup Manufacturing Company Axial fan housing with integral venturi
US6471473B1 (en) * 2000-10-17 2002-10-29 Rule Industries, Inc. Marine in bilge blower
EP1712799B1 (en) * 2005-04-07 2008-07-30 Harman Becker Automotive Systems GmbH Fan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102322447A (en) * 2011-08-24 2012-01-18 天津通天科技有限公司 Exhaust fan for wind power engine room
CN102957227A (en) * 2011-08-26 2013-03-06 德昌电机(深圳)有限公司 Brushless motor

Also Published As

Publication number Publication date
EP2250377A2 (en) 2010-11-17
WO2009115752A3 (en) 2009-11-12
WO2009115752A2 (en) 2009-09-24
FR2928426A1 (en) 2009-09-11

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Application publication date: 20110202