EP2158403B1 - Ventilateur avec une carte à circuits imprimés - Google Patents

Ventilateur avec une carte à circuits imprimés Download PDF

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Publication number
EP2158403B1
EP2158403B1 EP08773573A EP08773573A EP2158403B1 EP 2158403 B1 EP2158403 B1 EP 2158403B1 EP 08773573 A EP08773573 A EP 08773573A EP 08773573 A EP08773573 A EP 08773573A EP 2158403 B1 EP2158403 B1 EP 2158403B1
Authority
EP
European Patent Office
Prior art keywords
circuit board
printed circuit
fan
fan according
air inlet
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.)
Not-in-force
Application number
EP08773573A
Other languages
German (de)
English (en)
Other versions
EP2158403A1 (fr
Inventor
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 EP2158403A1 publication Critical patent/EP2158403A1/fr
Application granted granted Critical
Publication of EP2158403B1 publication Critical patent/EP2158403B1/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
    • 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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • 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
    • 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
    • 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
    • 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
    • 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

  • the invention relates to a fan with a circuit board, in particular for air measurement, z. B. for air conditioning in vehicles.
  • the DE 20 2004 016 545 U1 which is considered to be the closest prior art, shows a fan in which a sensor is arranged on a printed circuit board in the region of the air inlet opening, and in which electronic components are arranged on a printed circuit board area arranged laterally on the fan.
  • the arrangement of the engine electronics in the region of the air inlet has several advantages. It is avoided that the engine electronics obscured a part of the air outlets, the height or width of the fan is not significantly affected, and the structure of the fan is simple and easy to automate.
  • Fig. 1 shows a fan 20. This has z. B. an outer diameter of 30 mm and a height of 28 mm and is shown greatly enlarged to show details.
  • the fan 20 has a lower housing part (base part, support part) 22, and an upper housing part (air guide part) 24, which with the lower housing part 22 z. B. via an adhesive connection, welded connection locking connection and / or a snap connection is connected.
  • the lower housing part 22 has in the middle a bearing support tube 26 into which a sintered bearing 28 is pressed.
  • a bearing 28 z. B. also one or more bearings or a ceramic bearing can be used.
  • In the radially outer region of the lower housing part 22 at least one magnet 50 for generating a magnetic auxiliary torque is arranged, which ensures a defined rotor position when not energized stator 40 and rotor 60 resting.
  • an inner stator 40 is fixed, which made a preferably made of plastic carrier (bobbin) 42 with a stator winding 44, an upper claw pole 46, a lower, rotated by 90 ° - not shown - Klauenpolteil 46 'and four in Carrier 42 fixed, to the outside of the lower housing 22 projecting terminal pins 51, 52, 53 and 54 has, see.
  • Fig. 1 and Fig. 3
  • the stator winding 44 has - only schematically indicated - a drive train 48 and a sensor coil 49, which are wound around the bearing support tube 26 around on the carrier 42 in order to form together with the claw-pole parts 46, 46 'a claw-pole stator 40.
  • the strand 48 serves as a drive train for driving the motor and has two terminals (ends) 48 'or 48 ", which are electrically connected, for example, to the connection pins 51 and 53.
  • the coil 49 serves as a sensor coil for detecting the rotor position for electronic commutation and has two connections (ends) 49 ', 49 ", the z. B. are electrically connected to the pins 52 and 54, respectively. Shown are only the terminals 48 'and 49', which are wound around the pins 51 and 52 and soldered to them.
  • the connection of the ends 48 ', 48 ", 49' and 49" with the pins 51 to 54 has a strain relief to prevent damage to the ends.
  • the stator winding 44, the Klauenpolmaschine 46, 46 'and the pins 51 to 54 pre-assembled, and the preassembled carrier 42 is then pushed onto the bearing support tube 26 and z. B. over four - not shown - pin pressed in corresponding holes of the lower housing part 22 for mechanical connection.
  • An outer rotor 60 has a rotor bell 62, within which an annular permanent magnet 64 is arranged, which is magnetized in this embodiment four-pole, since the claw-pole stator 40 has four poles.
  • the permanent magnet 64 is e.g. It is designed as a plastic-bonded ferrite magnet ("rubber magnet”) and is used e.g. injected or glued into the rotor 60, whereby smaller tolerances are possible during spraying.
  • a shaft 66 is mounted, which is mounted in the sintered bearing 28 and a rotation with respect to the motor axis or rotor axis 70 (FIG. Fig. 2 ).
  • the shaft 66 may be performed, for example, as a steel shaft or ceramic shaft, and the Attachment of the shaft 66 in the rotor bell 62 can be done, for example via injection or injection. With the free end of the shaft 66 abuts against the lower housing part 22.
  • the rotor magnet 64 is compared to the Klauenpol constitution 46, 46 'axially offset upwards, whereby an axial force K acts in the direction of the lower housing part 22 towards him and the shaft 66 presses against this (so-called axial slide bearing with axial bias).
  • the fan blades 68 may also have a curvature in the running direction or against the running direction of the fan 20.
  • the upper housing part 24 has at the top a central air inlet opening 30 for the substantially axial inlet of air 31 and at least one lateral air outlet opening 32 for the substantially radial outlet of air. At the edge of the air inlet opening 30, the upper housing part 24 at least partially forms a collar 34, and around the collar 34 around it has a flat top 36th
  • a printed circuit board 80 is arranged on the flat upper side 36 of the upper housing part and preferably above the rotor 60 and the stator 40.
  • the printed circuit board 80 is arranged annularly around the collar 34 and has an annular region 87 (FIG. Fig. 2 and Fig. 9 ) with at least one recess 89.
  • the printed circuit board 80 is substantially perpendicular (eg between 75 ° and 105 °) to the motor axis 70 (FIG. Fig. 2 ) arranged. In Fig. 2 it is arranged vertically.
  • first connection portion 81 it is connected to four axially extending, attached to the outside of the lower housing part 22 and the upper housing part 24, axially extending contact pins 91, 92, 93, 94, for example, by this project through corresponding holes in the circuit board 80 and contacted on the upper side of the printed circuit board 80 with corresponding contacts 191, 192, 193 and 194, preferably soldered, cf. Fig. 9 ,
  • the pins 91 to 94 are z. B. connected via a solder connection with the connection pins 51 to 54 of the stator 40, so that the circuit board 80 is electrically connected to the drive train 48 and the sensor coil 49.
  • the contact pins 91 to 94 by plastic deformation of eg in Fig. 3 shown plastic housing parts 38 connected to the housing 22 and 24, and one speaks of a Warmverstemmung. As a result, a strain relief for the pins 91 to 94 is generated.
  • the printed circuit board 80 has a second connection region 82, on which z. B. a plug 99 with electrical connections can be fastened, see. Fig. 2 to Fig. 6 , wherein the plug preferably has a safety latch for latching with corresponding Einrast Colouren (locking elements) in the circuit board 80.
  • the printed circuit board 80 is in the second connection region 82 via two projecting from the upper housing part 24, in corresponding recesses 90 (FIG. Fig.
  • the second connection region 82 preferably lies opposite the first connection region 81, and from the side of the second connection region 82 a ridge-shaped printed circuit board section 83 protrudes through an interruption 35 of the collar 34 ( Fig. 3 ) at least partially in the manner of a springboard in the air inlet opening 30 inside.
  • the web-shaped printed circuit board section 83 can pass to the opposite side.
  • a sensor 84 On the web-shaped printed circuit board section 83, a sensor 84, preferably in SMD construction and centrally in the air inlet opening 30 is arranged.
  • the sensor 84 is z.
  • circuit board 80 On the circuit board 80 - printed circuit traces 86 and electrical / electronic components 88 are arranged - schematically indicated.
  • the entire motor electronics for the electronically commutated fan 20 is arranged on the circuit board 80, which z. B. evaluates the signal of the sensor coil 49 and controls the energization of the drive train 48 via an output stage to cause a rotation of the rotor 60.
  • the printed circuit board 80 is preferably equipped only with SMD components 88, and the interconnects 86 are provided both on the top and on the underside of the circuit board, with corresponding plated-through holes are provided.
  • the printed circuit board 80 preferably has a thickness of 2 mm +/- 1 mm and in the annular area outside the first terminal region 81 and the second terminal region 82 an inner diameter in the range of 15 mm to 35 mm and an outer diameter in the range of 18 mm 40 mm, wherein the radial extent between the inner and the outer edge of the printed circuit board 80 is preferably in the range 4 mm +/- 2 mm.
  • the printed circuit board 80 extends radially to the maximum extent to the housing 22, 24, wherein, however, the first terminal portion 81 and the second terminal portion 82 can protrude radially beyond, see. Fig. 4 , This reduces the risk of Damage to the printed circuit board or the components 88 and printed conductors 87 fastened thereon.
  • annular, preferably round molding 100 ( Fig. 7 ) fitted with an air inlet opening 102, which extends the air inlet opening upwards.
  • annular sealing member 104 is disposed in a recess 101 on the bottom thereof, which protrudes axially from the recess 101 to z. B. a seal between the fan 20 and a - not shown - to allow housing part with an air inlet opening.
  • the molding 100 is disposed above the circuit board 81 and covers the electronic components 88 with a portion 105 at least partially, preferably completely, to prevent mechanical damage of the components 88.
  • the molding 100 is at least partially supported on the inner edge of the circuit board 80.
  • the fitting 100 has downwardly projecting extensions 106 with latching hooks, which enable a hold on the printed circuit board 80 and / or on the upper housing part 24, in particular on the upper edges 33 of the lateral openings 32.
  • radial recesses 103 are provided, see. Fig. 7 , It is also an attachment by gluing possible.
  • the molding 100 has downwardly projecting extensions 108 which inter alia close the interruption 35 of the collar for the web-like printed circuit board section 83, in order to avoid losses or incorrect measurements through air 35 passing through this interruption.
  • the area of the molding 100 located above the electronic components 88 has a spacing therefrom in order to improve its cooling.
  • the distance between the top of the components 88 and the bottom of the covering region 105 is preferably at least one point between 0.2 mm and 5 mm.
  • the distance between the upper surface of the printed circuit board 80 and the underside of the covering region 105 is preferably between 0.8 mm and 7 mm at at least one point.
  • Fig. 8 shows an embodiment of the engine electronics.
  • the terminal 97 is connected to the positive pole of a voltage source Vcc 150, and the terminal 98 to its negative pole or ground GND.
  • a resistor 152 is located between the point 97 and a point 154.
  • the point 154 is connected to the contact 92 and to the collector of an npn transistor 156.
  • the base of transistor 156 is connected to point 92 and the emitter of transistor 156 is connected to contact 98 (GND).
  • the sensor coil 49 is connected to the contacts 92 and 94.
  • a diode 158 is connected between the point 92 and a point 160, a diode 162 between the contact 98 and the point 160 and a diode 164 between the points 94 and 160, with the cathode pointing towards the point 160.
  • a resistor 168 is connected between the contact 97 and a point 170.
  • the collector of an npn transistor 172 is connected to point 170, its base connected to point 94, and its emitter connected to contact 98 (GND).
  • the contact 97 is connected to the contact 91 of the drive train 48.
  • the point 170 is connected via a resistor 174 to the point 180, which in turn is connected via a capacitor 182 to the contact 93 of the drive train 48.
  • the base of an npn transistor 184 is connected to point 180, its collector to point 93, and its emitter to contact 98 (GND).
  • the contact 93 is connected to the contact 98 via a diode 186, the cathode of which points towards the point 93.
  • the rotor 60 is in operative connection with the drive train 48 and the sensor coil 49.
  • the NTC resistor 84 is connected to the contacts 95, 96.
  • the motor and the commutation electronics represent a 1-stranded, 1-pulse drive, in each case about 180 ° el. the power train 48 is energized, while he about the other about 180 ° el. remains de-energized, the time for the commutation via the sensor coil 49 is determined.
  • the motor can start only in certain starting positions, and these are ensured by the magnetic auxiliary moments generated by the at least one magnet 50.
  • the engine has a preferred direction of rotation.
  • the diodes 158, 162, and 164 protect the transistors 156, 172, and 184 from destruction, and the diode 186 protects against reverse polarity of the operating voltage.
  • Transistors 156, 172 form a so-called current mirror, and diode-connected transistor 156 provides an accurate bias on the base of transistor 172.
  • the current 11 designates the current through the resistor 152
  • the current I2 the current through the resistor
  • the voltage at the base of the output stage transistor 184 which is determined by the resistor 174 and the collector of the transistor 172, is minimally larger due to the unbalance of the resistors 168 and 152, and therefore the transistor 184 will turn on one.
  • the drive train 48 is energized, and the rotor 60 begins to rotate.
  • a voltage is induced in the sensor coil 49, and in the subsequent zero crossing of this induced voltage (induced voltage is positive), the transistor 172 is fully turned on.
  • the potential at the base of the transistor 184 is reduced, and this has the consequence that no current flows through the drive train 48.
  • Fig. 9 shows a detailed view of the top of the circuit board 80
  • Fig. 10 a detailed view of the underside of the circuit board 80, wherein the circuit according to Fig. 8 is arranged on the circuit board 80.
  • the components are denoted by the reference numerals Fig. 8 provided, and the tracks were also drawn in the area of the components, although they are hidden there by these.
  • the printed circuit board 80 is provided with conductor tracks 86 both on the upper side and on the lower side, and so-called plated-through holes 190, 191 ', 192', 193 ', 194' to 203 are provided for connecting the conductor tracks on the upper and lower side. which have been drawn star-shaped for clarity and are naturally arranged on the bottom mirrored to the top.
  • a scale indication is shown by way of example in order to clarify the size relationships.
  • the arrangement of the components and in particular the electronic components 162, 172, 184 on the printed circuit board 80 is preferably such that they are all in plan view of the fan along the motor axis within the housing at the appropriate location.
  • the fan overhead along the motor axis 70 at each angle (ie, around the entire circuit board, see angular range 212) with respect to the circuit board 80 is the maximum radial extent of the electronic components 156, 172, 184 located on the circuit board 80 the engine electronics 88 is smaller than the corresponding maximum radial extent of the housing 22, 24. As a result, the fan is kept compact.
  • FIG. 12 Representations of the fan 20 and the circuit board 80 are shown in approximately lifelike scale. It becomes clear that these are very small fans, and one speaks of mini fans. Since the space available in a roof console of a car, for example, is very limited, it is important that the fan 20 through the circuit board 80 with the engine electronics is not substantially or preferably not increased in height or width. This is achieved by placing the circuit board 80 around the air inlet opening 30, and the use of SMD components 88 further reduces the size needed.
  • FIGS. 13 to 15 show the motor 20 with overhead circuit board 80, the external connection to the contacts 95 (first connection to the sensor 84), 96 (second connection to the sensor 84), 97 (supply voltage + UB) and 98 (supply voltage ground) by means of a Plug housing 99 'takes place in Fig. 13 is shown partially deducted.
  • plug-in contact pins 195, 196, 197, 198 inserted and fixed in the contacts 95 to 98 in corresponding recesses, eg in press-fit or with a solder joint.
  • the contact pins (connecting pins) 195 to 198 protrude downward, that is, on the motor side of the circuit board 80 out.
  • the plug housing 99 ' has on the upper side 101 facing the contact pins 195 to 198 inwardly facing openings 195', 196 ', 197', 198 'for receiving the contact pins 195 to 198.
  • the plug housing 99 ' has an axial projection 102 and a surface 103 to which a female plug 299 (in FIG Fig. 14 shown schematically) with four contact pins 195 to 198 associated contact openings 295, 296, 297, 298 inserted into the plug housing 99 'and is latched via a locking element 300 with this.
  • the plug 299 is used to connect the fan with a controller, eg for an air conditioner.
  • the plug housing 99 has one or more guide openings 105 on the inner side surface 104 associated with the fan 20, and one or more guide elements 124, in particular guide rails, with one or more latching recesses 125 are provided on the housing 22, 24 of the fan 20.
  • the locking member 27 ensures a good mechanical connection between the circuit board 80 and the upper housing part 24th
  • the plug housing 99 ' By using the plug housing 99 ', a simple adaptation of the fan to customer specifications for the plug 299 is made possible.
  • the plug housing 99 ' may be e.g. be additionally attached in laser technology.
  • the motor described is a preferred embodiment, but the motor type is not limited to a claw pole motor, and the stator may be, for example, two-stranded, three-stranded, four-stranded, five-stranded, six-stranded, or even higher-stranded, and may be, for example, star-shaped or triangular-shaped.
  • a Hall sensor can also be used instead of the sensor coil. or in the case of a stator having a plurality of strands, one strand not used for the energization in each case.
  • the circuit board with the at least one recess 89 may be either closed or open, e.g. be formed in the manner of a semicircle, Dreiviertilnikes or as a U.
  • connection via a plug 99 may be safety critical in applications with high mechanical requirements, and other connections such as e.g. Soldered connections or connections via contact pins are used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (15)

  1. Mini- ou microventilateur, lequel présente :
    un moteur commutable électroniquement par une électronique de moteur (88) et comprenant un stator (40) et un rotor (60), lequel dernier est en liaison d'entraînement avec des ailettes de ventilateur (68) ;
    au moins une ouverture d'entrée d'air (30, 102) ;
    au moins une ouverture de sortie d'air (32) ;
    une carte de circuits imprimés (80) sur laquelle se trouvent des composants de l'électronique de moteur ;
    au moins un évidement (89) prévu dans la carte de circuits imprimés (80) ;
    la carte de circuits imprimés (80) étant disposée dans la région de l'ouverture d'entrée d'air (30, 102) de façon qu'en fonctionnement l'air entre dans le ventilateur (20) en passant à travers ledit au moins un évidement (89) ;
    une première portion (83) prévue sur la carte de circuits imprimés (80), laquelle pénètre au moins partiellement dans l'ouverture d'entrée d'air (30, 102) ;
    au moins un capteur (84), lequel est disposé dans l'ouverture d'entrée d'air (30, 102), la première portion (83) présentant au moins une piste conductrice (85) qui est reliée à ce capteur (84) ;
    caractérisé en ce que le ventilateur présente une pièce moulée en matière plastique (100), laquelle est disposée du côté de la carte de circuits imprimés (80) opposé au stator (40) et présente une région (105) qui recouvre au moins partiellement la carte de circuits imprimés (80) et qui est située à distance des composants de l'électronique de moteur (88) qui se trouvent sur la carte de circuits imprimés (80).
  2. Ventilateur selon la revendication 1, dans lequel la carte de circuits imprimés (80) est disposée au moins partiellement autour de l'ouverture d'entrée d'air (30, 102).
  3. Ventilateur selon la revendication 1 ou 2, dans lequel la première portion (83) pénètre dans l'ouverture d'entrée d'air (30, 102) à la manière d'un plongeoir.
  4. Ventilateur selon une des revendications précédentes, dans lequel le stator (40) présente au moins un enroulement (44),
    et dans lequel des extrémités d'enroulement (48', 48", 49', 49") sont reliées électriquement à des contacts (191, 192, 193, 194) sur la carte de circuits imprimés (80).
  5. Ventilateur selon une des revendications précédentes, dans lequel des éléments de contact d'extension axiale (91, 92, 93, 94) sont prévus sur un côté extérieur radial du ventilateur (20) pour la liaison électrique.
  6. Ventilateur selon la revendication 5, dans lequel les éléments de contact d'extension axiale (91 à 94) sont reliés électriquement aux contacts (191 à 194) sur la carte de circuits imprimés (80).
  7. Ventilateur selon une des revendications 4 à 6, dans lequel la carte de circuits imprimés (80) présente des connexions (95, 96) pour la liaison électrique avec le capteur (84), lesquelles sont opposées aux contacts (191 à 194) sur la carte de circuits imprimés (80) qui servent à la liaison électrique avec ledit au moins un enroulement (44).
  8. Ventilateur selon une des revendications précédentes, dans lequel la carte de circuits imprimés (80), sur laquelle sont prévus un capteur de position de rotor et un étage final, est divisée en deux parties par un plan imaginaire (210) dans lequel se trouve l'axe de rotor (70), au moins un commutateur à semi-conducteurs (156, 172) du capteur de position de rotor étant disposé sur une partie et au moins un commutateur à semi-conducteurs (184) de l'étage final sur l'autre partie.
  9. Ventilateur selon une des revendications précédentes, avec un boîtier de ventilateur (22, 24), lequel présente une région plate (36) sur laquelle la carte de circuits imprimés (80) est disposée.
  10. Ventilateur selon une des revendications précédentes, dans lequel une pièce moulée en matière plastique (100) conçue pour assurer l'étanchéité de l'ouverture d'entrée d'air (30) est disposée du côté de la carte de circuits imprimés (80) opposé au stator (40).
  11. Ventilateur selon une des revendications précédentes, dans lequel des connexions (95, 96, 97, 98 ; 195, 196, 197, 198) pour le capteur (84) et la tension d'alimentation, conçues pour permettre une liaison avec un connecteur (99, 99', 299), sont prévues sur la carte de circuits imprimés (80).
  12. Ventilateur selon la revendication 11, dans lequel les connexions présentent des broches de connexion (195 à 198) qui sont conçues pour établir la liaison avec le connecteur (299).
  13. Ventilateur selon la revendication 11 ou 12, dans lequel le boîtier (99') du connecteur (99, 99', 299) et le boîtier de ventilateur (22, 24) sont reliés ensemble, en particulier par une soudure au laser.
  14. Ventilateur selon une des revendications précédentes, lequel est disposé dans une climatisation.
  15. Ventilateur selon une des revendications précédentes, lequel est disposé dans un véhicule automobile.
EP08773573A 2007-06-28 2008-06-21 Ventilateur avec une carte à circuits imprimés Not-in-force EP2158403B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202007009407 2007-06-28
DE202008003033 2008-02-26
PCT/EP2008/005029 WO2009000481A1 (fr) 2007-06-28 2008-06-21 Ventilateur avec une carte à circuits imprimés

Publications (2)

Publication Number Publication Date
EP2158403A1 EP2158403A1 (fr) 2010-03-03
EP2158403B1 true EP2158403B1 (fr) 2010-11-17

Family

ID=39757892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08773573A Not-in-force EP2158403B1 (fr) 2007-06-28 2008-06-21 Ventilateur avec une carte à circuits imprimés

Country Status (5)

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US (1) US8297951B2 (fr)
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US11855521B2 (en) 2021-02-02 2023-12-26 Black & Decker, Inc. Brushless DC motor for a body-grip power tool
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WO2009000481A1 (fr) 2008-12-31
DE202008008436U1 (de) 2008-11-13
US8297951B2 (en) 2012-10-30
DE502008001841D1 (de) 2010-12-30
EP2158403A1 (fr) 2010-03-03
DE102008029907A1 (de) 2009-01-02
US20100143170A1 (en) 2010-06-10
ATE488701T1 (de) 2010-12-15

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