EP1531272B1 - Ventilateur avec capteur - Google Patents

Ventilateur avec capteur Download PDF

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Publication number
EP1531272B1
EP1531272B1 EP04024746.2A EP04024746A EP1531272B1 EP 1531272 B1 EP1531272 B1 EP 1531272B1 EP 04024746 A EP04024746 A EP 04024746A EP 1531272 B1 EP1531272 B1 EP 1531272B1
Authority
EP
European Patent Office
Prior art keywords
fan
circuit board
fan according
air
sensor
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.)
Active
Application number
EP04024746.2A
Other languages
German (de)
English (en)
Other versions
EP1531272A3 (fr
EP1531272A2 (fr
Inventor
Helmut Ardelt
Rodica Peia
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 St Georgen GmbH and Co KG
Original Assignee
Ebm Papst St Georgen GmbH and Co KG
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 St Georgen GmbH and Co KG filed Critical Ebm Papst St Georgen GmbH and Co KG
Publication of EP1531272A2 publication Critical patent/EP1531272A2/fr
Publication of EP1531272A3 publication Critical patent/EP1531272A3/fr
Application granted granted Critical
Publication of EP1531272B1 publication Critical patent/EP1531272B1/fr
Active 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
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0633—Details of the magnetic circuit
    • 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
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/0646—Details of the stator
    • 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
    • F04D25/0666—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump a sensor is integrated into the pump/motor design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring

Definitions

  • sensor fans For air measurement, e.g. for air conditioning systems in motor vehicles, so-called sensor fans are used. According to technical usage, these are miniature fans.
  • Such sensor fans are usually slightly larger than a thimble and contain an electronically commutated miniature motor whose rotor drives a small fan. The latter sucks in air via an air passage opening, and this air is then, after e.g. their temperature has been measured, blown out through one or more openings again.
  • one or more sensors are arranged, e.g. an NTC resistor, on which the current air temperature is measured, or a sensor for the humidity, quality, radioactive load etc. of the air.
  • this sensor data e.g. an air conditioner controlled. Since the fan is so small, it is difficult and also costly to mount such a sensor, e.g. an NTC resistor.
  • an electrical connection to a connector of the fan must be made from the mounting location of the sensor, which causes additional costs.
  • the DE 196 43 339 A1 shows an electric motor blower with a central housing part, an electronically commutated electric drive motor, and a mounted on a rotor shaft fan.
  • the middle housing part is connected via latching hooks to a printed circuit board, and this contains a temperature sensor.
  • a printed circuit board substantially facilitates the manufacture, because on a printed circuit board a sensor can be fixed by the methods of automated production, e.g. As an SMD component, which has only a very low height. This makes it possible to reduce the size of such a sensor fan.
  • circuit board with advantage in the region of its bending has a reduced thickness. This can e.g. be reduced by at least 50%, preferably by 70 to 85%.
  • Fig. 1 shows a mini fan 20. This has, for example, an outer diameter of 30 mm and a height of 20 mm and is shown greatly enlarged in order to represent details with sufficient accuracy.
  • Fig. 1 shows an example of a scale indication to illustrate the size ratios.
  • the fan 20 has a lower housing part 22 and a mechanically connected upper housing part 24.
  • the lower housing part 22 has in the middle a bearing support tube 26, in which a sintered bearing 28 is pressed and on the outside of an inner stator 30 is attached, the here according to Fig. 5 Claw poles 32, 34 with two (only schematically indicated) toroidal coils 36, 38, which are pre-mounted on a carrier 40.
  • the ring coil 36 serves to drive the motor, the toroidal coil 38 as a so-called sensor coil for detecting the rotor position for the electronic commutation.
  • the carrier 40 has four pins 42, with which it is pressed into corresponding holes 44 of the lower housing part 22.
  • an outer rotor 46 which has a rotor bell 48, within which an annular permanent magnet 50 is arranged, which is magnetized here four-pole, since the claw-pole stator has four poles.
  • a shaft 52 is fixed, which is mounted as shown in the sintered bearing 28 and rests with its free end against the lower housing part 22. Because in Fig. 1 the rotor magnet 50 is offset axially upward relative to the claw poles 32, 34, acts on the rotor 46, a force K in the direction of the lower housing part 22 and presses the shaft 52 against this (axial slide bearing with axial bias).
  • the upper housing part 24 has a flat top 64, and on this a first portion 66 of a circuit board 68 is fixed, the shape of the Fig. 1 to 5 clearly stated.
  • This printed circuit board 68 generally has a thickness d of about 1 mm, and this is reduced in the region of a bending point 70 by a cutout 72 to about 0.22 mm, to allow easier bending there. It has been found that in this way a bend is possible whose bending angle can be between 0 ° and about 180 °.
  • the printed circuit board 68 has below the bending point 70 a second section 54 on which the electronic components (not shown) of the fan 20 are arranged. At the bottom of the second section 74 is according to Fig. 1 a plug 76 of any type attached to allow easy installation.
  • pins 78 made of plastic, which are provided on the housing parts 22, 24, protrude through openings 80 in the circuit board 68 and are permanently fixed there, e.g. by heating or other types of positive connection.
  • printed circuit traces 82 printed on the printed circuit board 68 and leading to contact surfaces 84 to which a sensor is soldered in the SMD process, here an NTC resistor 86.
  • Such a resistor 86 has a very low overall height under normal operation.
  • the contact surfaces 84 are located on a thin web 88, which extends in section 66 approximately diametrically to an opening 90, whose shape coincides with that of the air passage opening 58.
  • a rounded support surface 92 is provided on the housing part 24, whose shape is best Fig. 1 evident. If the printed circuit board 68 is bent, the support surface 92 fits into the cutout 72, preferably in a form-locking manner, optimally supporting the printed circuit board 68 in the region of its bend 70, and at the same time forms the bend 70 such that the printed conductors 82 do not crack there.
  • the thickness of the copper layer, which forms the conductor tracks 82 selected correspondingly large, especially in the region of the bend 70 to the ductility of the copper exploit.
  • two diametrically opposed pockets 94 are provided, in which (not shown) positioning magnets are arranged, which rotate the rotor 46 at a currentless motor in a predetermined rotational position from which a start in the correct direction of rotation is easily possible.
  • the terminals of the coils 36, 38 are connected to corresponding, not shown interconnects of the circuit board 68.
  • the lower housing part 22 has four slots 96, cf. Fig. 5 ,
  • Fig. 6 and 7 show as a second embodiment, a sensor fan 120th
  • a sensor fan 120th This has a fan 156 which is driven by an electronically commutated motor. Furthermore, it has a lower housing part 122 and an upper housing part 124 connected thereto. The latter is on its in Fig. 6 upper side provided with an air passage opening 158 which is formed by a cylindrical collar 159 and in which air flows in from above during operation.
  • the collar 159 has two side openings 161 'and 161 ".
  • the motor 146 has an inner stator 130 having claw poles 132, 134 and two toroidal coils 136, 138 here.
  • An outer rotor 146 has a rotor bell 148, within which a magnetic ring is arranged.
  • a shaft is mounted, which is mounted in a sintered bearing 129 which is arranged in a bearing tube 128.
  • a contact set Disposed laterally on the housing parts 122, 124 is a contact set with six contacts K1 to K6, which merge below into solder tails 176, which are e.g. serve for connection to (not shown) printed conductors of a printed circuit board.
  • the housing 120, 124 is provided with resilient mounting pin 178.
  • the contact set K1 to K6 is firmly connected to the housing parts 122, 124, for example by plastic welding. Its contacts K2 to K5 serve to connect to four pins 137 of two stator coils 136, 138. Its contacts K1 and K6 are for connection to two leads of an NTC sensor 186 located approximately in the center of the inlet port 158. there to measure the temperature of the incoming air.
  • the rotor 146 is directly connected to the blades of the fan wheel 156.
  • the NTC sensor 186 is mounted on a transverse web 188 of a circuit board 185 in SMD technology and there electrically connected to two interconnects 182 ', 182 "leading to contact holes 183' and 183", respectively. These contact holes are soldered directly to the contacts K6 or K1 of the contact set. As a result, the NTC sensor 186 is electrically connected, and the annular circuit board 185, which is part of the web 188 which extends diagonally to this annular circuit board 185, is mechanically fastened to the sensor fan 120 by the soldering process.
  • circuit board 185 can be easily replaced when damaged. Also, one may use the same sensor fan 120 for NTC resistors 186 having different resistance values, with only the circuit board 185 being different. The fact that the annular circuit board 185 is located outside of the collar 159, it does not hinder the influx of air through the opening 158, and the web 188 also does not constitute a significant impediment to this air flow.
  • the air outlet openings are in Fig. 6 and 7 denoted by 160.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (18)

  1. Ventilateur, lequel présente :
    un boîtier de ventilateur (22, 24 ; 122, 124), lequel présente une ouverture
    d'entrée d'air axiale (58 ; 158) et une ouverture de sortie d'air (60 ; 160) ;
    un moteur à induit extérieur à commutation électronique disposé dans le boîtier de ventilateur (22, 24 ; 122, 124), lequel présente un stator intérieur (30 ; 130) et un rotor extérieur (46 ; 146) ;
    une roue de ventilateur (56 ; 156) reliée au rotor extérieur (46 ; 146), laquelle est conçue pour aspirer de l'air à travers l'ouverture d'entrée d'air (58 ; 158) et pour l'expulser à travers l'ouverture de sortie d'air (60 ; 160) ;
    une carte de circuits imprimés (68 ; 185) comportant une première section (66 ; 188) qui s'étend dans la zone de l'ouverture d'entrée d'air (58 ; 158) et une partie de support (88 ; 188) ;
    un capteur (86 ; 186) disposé sur cette partie de support (88 ; 188) pour détecter au moins une valeur de l'air qui traverse le ventilateur (20 ; 120) pendant le fonctionnement, en particulier de température, humidité, qualité de l'air, etc. ;
    des pistes conductrices (82, 84 ; 182', 182") disposées sur la première section (66 ; 188), auxquelles le capteur (86 ; 186) est relié électriquement,
    la première section (66) de la carte de circuits imprimés (68) étant pourvue d'au moins une ouverture de passage d'air (90), et
    la partie de support (88 ; 188) de la carte de circuits imprimés (68 ; 185) s'étendant dans cette ouverture de passage d'air (90).
  2. Ventilateur selon la revendication 1, dans lequel le capteur (86 ; 186) est relié électriquement aux pistes conductrices (82, 84 ; 182', 182") de la première section (66 ; 188) en technologie CMS.
  3. Ventilateur selon l'une des revendications précédentes, dans lequel le capteur est réalisé sous la forme d'une résistance CTN (86 ; 186).
  4. Ventilateur selon l'une des revendications précédentes, dans lequel le capteur (86; 186) est conçu pour la détection de température pour un système de climatisation.
  5. Ventilateur selon l'une des revendications précédentes, dans lequel une collerette (159) est prévue dans la zone de l'ouverture d'entrée d'air (158), laquelle est pourvue de brèches (161', 161") à travers lesquelles la première section (188) de la carte de circuits imprimés (185) s'étend dans l'ouverture d'entrée d'air (158).
  6. Ventilateur selon l'une des revendications précédentes, dans lequel le capteur (86 ; 186) est disposé à peu près au centre de l'ouverture d'entrée d'air axiale (58 ; 158).
  7. Ventilateur selon l'une des revendications précédentes, dont l'ouverture de sortie d'air (60 ; 160) est conçue pour permettre une expulsion radiale de l'air.
  8. Ventilateur selon l'une des revendications précédentes, dans lequel la carte de circuits imprimés (68 ; 185) est maintenue sur le boîtier de ventilateur (22, 24 ; 122, 124).
  9. Ventilateur selon l'une des revendications précédentes, dans lequel un jeu de contacts (K1 à K6) est prévu,
    et la carte de circuits imprimés (185) est reliée électriquement et mécaniquement à des éléments (K1, K6) de ce jeu de contacts.
  10. Ventilateur selon la revendication 9, dans lequel le stator intérieur (30, 130) présente deux bobines statoriques (136, 138) auxquelles sont associées quatre broches de raccordement (137), et dans lequel le jeu de contacts (K1 à K6) présente six contacts,
    dont deux contacts (K1 et K6) sont reliés à deux lignes de raccordement (182', 182") du capteur (86 ; 186), et
    dont quatre contacts (K2 à K5) sont reliés aux quatre broches de raccordement (137).
  11. Ventilateur selon la revendication 10, dans lequel le jeu de contacts (K1 à K6) présente six contacts qui se transforment à une extrémité en picots à souder (176) qui servent à la liaison des contacts (K1 à K6) avec des pistes conductrices d'une carte de circuits imprimés.
  12. Ventilateur selon l'une des revendications précédentes, dans lequel un tube support de palier (26 ; 128) est réalisé d'une seule pièce avec le boîtier de ventilateur (22, 24 ; 122, 124), dans lequel est prévu un ensemble palier (28 ; 129) destiné à supporter un arbre (52) du rotor extérieur (46 ; 146).
  13. Ventilateur selon l'une des revendications précédentes, dans lequel la première section (66) de la carte de circuits imprimés (68) passe, par l'intermédiaire d'une courbure (70), à une deuxième section (74) qui sert à recevoir des composants électroniques du moteur.
  14. Ventilateur selon la revendication 13, dans lequel la carte de circuits imprimés (68) présente une épaisseur réduite (72), en particulier une épaisseur réduite d'au moins 50 %, dans la zone de la courbure (70).
  15. Ventilateur selon l'une des revendications 13 ou 14, dans lequel la carte de circuits imprimés (68) est appuyée sur un bord arrondi (92) du boîtier de ventilateur (24) dans la zone de la courbure (70).
  16. Ventilateur selon la revendication 15, dans lequel le bord plié (92) s'engage sensiblement par complémentarité de forme dans la section (72) d'épaisseur réduite de la carte de circuits imprimés (68).
  17. Ventilateur selon l'une des revendications 13 à 16, dans lequel le boîtier de ventilateur est réalisé au moins en deux parties (22, 24),
    et la deuxième section (74) de la carte de circuits imprimés (68) est maintenue sur une pluralité de parties (22, 24) du boîtier de ventilateur.
  18. Ventilateur selon l'une des revendications précédentes, lequel est réalisé sous la forme d'un mini ventilateur.
EP04024746.2A 2003-11-12 2004-10-18 Ventilateur avec capteur Active EP1531272B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20318040U 2003-11-12
DE20318040 2003-11-12
DE202004012411 2004-08-07
DE202004012411U 2004-08-07

Publications (3)

Publication Number Publication Date
EP1531272A2 EP1531272A2 (fr) 2005-05-18
EP1531272A3 EP1531272A3 (fr) 2006-02-22
EP1531272B1 true EP1531272B1 (fr) 2015-12-09

Family

ID=33566193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04024746.2A Active EP1531272B1 (fr) 2003-11-12 2004-10-18 Ventilateur avec capteur

Country Status (3)

Country Link
US (1) US7841541B2 (fr)
EP (1) EP1531272B1 (fr)
DE (1) DE202004016545U1 (fr)

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US20070134109A1 (en) * 2005-02-24 2007-06-14 Rodica Peia Mini-fan
EP1816729B1 (fr) * 2006-02-03 2015-10-21 ebm-papst St. Georgen GmbH & Co. KG Moteur électrique
EP1816727A3 (fr) * 2006-02-03 2011-04-06 ebm-papst St. Georgen GmbH & Co. KG Moteur électrique
US8282348B2 (en) * 2007-03-05 2012-10-09 Xcelaero Corporation Fan with strut-mounted electrical components
US8297951B2 (en) * 2007-06-28 2012-10-30 Ebm-Papst St. Georgen Gmbh & Co. Kg Fan having a printed circuit board
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US8130505B2 (en) * 2009-04-24 2012-03-06 Schurz James Hsu Car fan controller
DE102011111220A1 (de) 2011-08-20 2013-02-21 Leopold Kostal Gmbh & Co. Kg Lüfter mit Sensor
US8899264B2 (en) 2011-12-15 2014-12-02 Honeywell International Inc. Gas valve with electronic proof of closure system
US9557059B2 (en) 2011-12-15 2017-01-31 Honeywell International Inc Gas valve with communication link
US9995486B2 (en) 2011-12-15 2018-06-12 Honeywell International Inc. Gas valve with high/low gas pressure detection
US9835265B2 (en) 2011-12-15 2017-12-05 Honeywell International Inc. Valve with actuator diagnostics
US8905063B2 (en) 2011-12-15 2014-12-09 Honeywell International Inc. Gas valve with fuel rate monitor
US9846440B2 (en) 2011-12-15 2017-12-19 Honeywell International Inc. Valve controller configured to estimate fuel comsumption
US8839815B2 (en) 2011-12-15 2014-09-23 Honeywell International Inc. Gas valve with electronic cycle counter
US9074770B2 (en) 2011-12-15 2015-07-07 Honeywell International Inc. Gas valve with electronic valve proving system
US8947242B2 (en) 2011-12-15 2015-02-03 Honeywell International Inc. Gas valve with valve leakage test
US9851103B2 (en) 2011-12-15 2017-12-26 Honeywell International Inc. Gas valve with overpressure diagnostics
US9234661B2 (en) 2012-09-15 2016-01-12 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
TWI530620B (zh) * 2013-09-02 2016-04-21 Sunonwealth Electr Mach Ind Co Chassis and fan with temperature sensing element
EP2868970B1 (fr) 2013-10-29 2020-04-22 Honeywell Technologies Sarl Dispositif de régulation
CN203604227U (zh) * 2013-12-02 2014-05-21 讯豪电子(昆山)有限公司 风扇结构
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
US9645584B2 (en) 2014-09-17 2017-05-09 Honeywell International Inc. Gas valve with electronic health monitoring
DE102015219150A1 (de) * 2015-10-02 2017-04-06 Ziehl-Abegg Se Motor für Lüfter bzw. Ventilatoren, Pumpen oder Kompressoren, Verfahren zum Betrieb eines solchen Motors und Ventilatorsystem mit einem oder mehreren Motor(en)/Ventilator(en)
US10503181B2 (en) 2016-01-13 2019-12-10 Honeywell International Inc. Pressure regulator
DE102016006888A1 (de) * 2016-06-03 2017-12-07 Liebherr-Hausgeräte Ochsenhausen GmbH Ventilator
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
TWI659159B (zh) * 2018-01-31 2019-05-11 建準電機工業股份有限公司 感溫風扇
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
TWI686540B (zh) * 2019-02-01 2020-03-01 建準電機工業股份有限公司 具連接座之風扇

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Publication number Priority date Publication date Assignee Title
US5701045A (en) * 1995-05-31 1997-12-23 Sanyo Denki Co., Ltd. Axial flow air fan having lateral suction and discharge ports for cooling electronic components
DE19643339A1 (de) * 1996-10-21 1998-04-23 Bosch Gmbh Robert Elektromotorisch betriebenes Gebläse

Also Published As

Publication number Publication date
US7841541B2 (en) 2010-11-30
DE202004016545U1 (de) 2004-12-30
EP1531272A3 (fr) 2006-02-22
US20050098641A1 (en) 2005-05-12
EP1531272A2 (fr) 2005-05-18

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