EP1134419B1 - Pompe centrifugale avec unité électronique refroidie - Google Patents

Pompe centrifugale avec unité électronique refroidie Download PDF

Info

Publication number
EP1134419B1
EP1134419B1 EP01106106A EP01106106A EP1134419B1 EP 1134419 B1 EP1134419 B1 EP 1134419B1 EP 01106106 A EP01106106 A EP 01106106A EP 01106106 A EP01106106 A EP 01106106A EP 1134419 B1 EP1134419 B1 EP 1134419B1
Authority
EP
European Patent Office
Prior art keywords
electronic unit
centrifugal pump
pump according
housing
ducts
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.)
Expired - Lifetime
Application number
EP01106106A
Other languages
German (de)
English (en)
Other versions
EP1134419A3 (fr
EP1134419A2 (fr
Inventor
Stephan Schreckenberg
Waldemar Stephan
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.)
Wilo SE
Original Assignee
Wilo AG
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 Wilo AG filed Critical Wilo AG
Publication of EP1134419A2 publication Critical patent/EP1134419A2/fr
Publication of EP1134419A3 publication Critical patent/EP1134419A3/fr
Application granted granted Critical
Publication of EP1134419B1 publication Critical patent/EP1134419B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0686—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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • 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

  • the invention relates to a centrifugal pump, which is driven by an electric motor, which is controlled by a remote from the pump chamber end face of the electric motor electronics unit, wherein the electric motor has at least one delivery channel through which the conveyed liquid for cooling the electronics unit of the pump chamber is led to the electronic unit.
  • Such a pump is known for example from German patent application DE 196 24 145.
  • this pump has an outer jacket surrounding the motor, through which the delivery fluid flows for cooling. Through the outer jacket, the liquid flows up to a motor housing and the outer sheath final housing cover made of metal, which rests with its outer edge on the cooling outer jacket.
  • the housing cover separates the electronics unit from the outer jacket and forms a heat sink for delivering the heat generated by components of the electronics to the delivery fluid located in the outer jacket.
  • both the outer dimensions and the weight of the motor or the centrifugal pump are increased. Besides, one is optimal heat dissipation guaranteed only for the directly adjacent to the lid components of the electronic unit. Particularly in the case of more complex electronic units, the electronic or electrical components located remotely from the housing cover can dissipate the developed heat only poorly or not at all to the delivery liquid brought up only up to the housing cover. Also, a continuous exchange of located in the outer casing conveying fluid is not ensured.
  • a centrifugal pump which is driven by an electric motor, which is controlled by a remote from the pump chamber end face of the electric motor electronics unit, wherein the electric motor has at least one delivery channel through which the pumped liquid to Cooling of the electronic unit is performed by the pump chamber to the electronic unit, wherein the electric motor has two delivery channels, which are guided by different pressure ranges of the centrifugal pump as a high pressure conveyor channel or as a low pressure conveyor channel to the electronic unit.
  • the object of the invention is to provide a structurally simple, inexpensive to manufacture and easy to handle centrifugal pump of the type mentioned, which has small outer dimensions and ensures optimum cooling of all components of the electronic unit.
  • the electric motor has at least two delivery channels, which are guided by different pressure ranges of the pump on the one hand as a high-pressure conveyor channel and on the other hand as a low pressure conveyor channel to the electronic unit, and that at least one cooling channel is passed through the electronic unit, which is connected to the two delivery channels such the liquid supplied to the electronics unit flows through the electronic unit.
  • the main advantage here is that the cooling liquid is not only zoom out to the electronics unit, but that it flows through the electronics unit. In this way, additional surfaces for heat transfer of electronic components to the cooling channel or to the cooling liquid flowing therein are created.
  • the two conveying channels can be arranged outside or inside the housing of the electric motor, in both cases both a smaller space requirement and a lower weight than in the case of a completely surrounding the electric motor outer jacket is achieved. They extend from areas in which the pumped liquid has different pressure during operation of the pump, for example, directly to the pump chamber or can lie on the intake manifold and the discharge nozzle. In this way, a continuous exchange of the cooling liquid and thus a high cooling efficiency is ensured.
  • the pump of the invention is easy to handle with a simple construction and inexpensive to manufacture.
  • the cooling channel is formed by a flat cooling gap, since in this case a particularly large surface, which is particularly suitable for blanks, is available for the heat transfer. It is preferably proposed that the cooling gap has a rectangular cross-section.
  • a plurality of small cooling channels in a plane in particular arranged parallel to each other and each connected to both the high pressure conveying channel and the low pressure conveying channel. Furthermore, it is possible to arrange a plurality of cooling channels in different directions and / or in different planes in the electronics unit.
  • the electronic unit has at least one printed circuit board with electrical components arranged such that the axis of the electric motor extends at least approximately in the plane of the board or in a plane parallel thereto ,
  • the board can be designed so narrow in the required longitudinal extent that the electronics unit or the housing surrounding the electronics unit does not protrude laterally beyond the housing of the electric motor.
  • a particularly good cooling performance can be achieved in that the cooling gap extends parallel to the board at a small distance.
  • the electronic unit has two boards, which adjoin each other parallel to the two side surfaces of the cooling gap. In this way, with high cooling efficiency the Frame size, especially the length of the electronics unit can be further reduced.
  • the board of the arrangement described above is divided into two halves, which are each correspondingly smaller than the original overall board.
  • the motor housing and the housing of the electronics unit is formed by a continuous round or polygonal Stranggußprofil, within which at least two longitudinally extending profile channels are formed, which are connected as conveying channels to the pump chamber.
  • a continuous casting profile can be produced particularly cost-effectively by extrusion or extrusion of light metal.
  • the motor housing is formed by a rectangular, preferably square Stranggußprofil, in whose corners in each case a longitudinally extending profile channel is formed.
  • two adjacent profile channels are connected to each other at least in the region of the electronics unit and connected to the cooling channel as high-pressure conveying channels, while the two other profile channels are connected to one another at least in the area of the electronic unit and connected to the cooling channel as low-pressure conveying channels.
  • a rectangular extruded profile combines in a particularly simple way the advantages of a compact and compact design with integrated delivery channels.
  • a particularly preferred extruded profile has an outer wall formed at least substantially square with a circular inner wall contained therein, wherein the inner wall is integrally formed in the middle region in the four side walls of the outer wall, that in each case a profile channel is formed in the four corners.
  • connections between two adjacent profile channels can be particularly easily formed by recesses or interruptions in the inner, in particular round shaped wall region of the Stranggußprofils. Such recesses or interruptions can be particularly easily milled into the inner regions of the lateral walls.
  • the cooling channel extends transversely from one side to the opposite side of a collar which is formed on a cover which terminates the extruded profile or the housing of the electronics unit and which extends into the interior of the housing in such a way it sealingly abuts the inner walls and with the ends of the cooling channel at the recesses or interruptions in the inner wall region of the Stranggußprofils.
  • the recesses or interruptions between the ends of the cooling channel and the outer wall portions of the Stranggußprofils form collecting spaces for exchanging the cooling liquid with the two adjacent profile channels.
  • a transverse wall is inserted into the continuous casting profile between the electric motor and the electronic unit.
  • the engine compartment can be separated in a sealed manner from the electronic unit, so that the electric motor can also be designed with a wet rotor as a can or gap pot motor.
  • the centrifugal pump 1 shown in FIG. 1 is driven by an electric motor 2, which is controlled by an electronic unit 4 arranged on the end face of the electric motor facing away from the pump chamber 3.
  • the centrifugal pump 1 has a pump housing 5 in the form of a spiral housing with a central intake manifold 6 and a tangentially extending discharge nozzle 8.
  • the electric motor 2 is designed here as a dry-running motor, the rotor 9 and the stator 10 being separated from the pump housing 5 by a first transverse wall 13 penetrated by the motor shaft 12 carrying the pump impeller 11.
  • the transverse wall 13 is not present, so that the rotor 9 and the stator 10 is separated from the pump housing 5 by a free area.
  • the motor housing 14 is formed by a Stranggußprofil 15 having a substantially square shaped outer wall 16 with a circular shaped inner wall 17 contained therein, which is integrally formed in the central regions 18 of the four side walls of the Stranggußprofils 15 to the square outer wall 16.
  • a Stranggußprofil 15 having a substantially square shaped outer wall 16 with a circular shaped inner wall 17 contained therein, which is integrally formed in the central regions 18 of the four side walls of the Stranggußprofils 15 to the square outer wall 16.
  • the pump housing 5 is provided with a coaxially projecting collar 20 with a sealing ring 21 embedded in the continuous casting profile 15 forming the motor housing 14 used.
  • the Stranggußprofil 15 is extended to a the electronics unit 4 receiving housing 22.
  • the housing 22 for the electronics unit 4 is closed at its free end by a cover 23 having a coaxial collar 24 which rests on a sealing ring 25 in a sealed manner on the inside of the circular inner wall 17.
  • a second transverse wall 26 is inserted into the Stranggußprofil 15, which separates the electric motor 2 of the electronic unit 4.
  • the transverse wall 26 is not present, so that the electric motor 2 is separated from the electronic unit 4 by a free area.
  • the housing 22 for the electronics unit 4 is thus formed in one piece and with the same external dimensions as the motor housing 14.
  • the four edges of the outer wall 16 of the Stranggußprofils 15 are chamfered to each accommodate a tie rod 7, which holds the entire device from the pump housing 5 to the electronics unit final cover 23 under tension.
  • a motor axis 27 containing and formed along a diameter transverse web 28 which extends in a plate shape over the entire longitudinal extent of the electronic unit 4.
  • a flat cooling gap is formed as a cooling channel 30 with a rectangular cross-section.
  • the cooling channel 30 extends along the diameter of the collar 24 and terminates at both ends in the outer circumferential surface of the collar 24.
  • the cooling channel 30 has almost the same thickness as the web 28, so that it is separated from the boards 29 wall portions of the web 28 only are very thin. In this way, a particularly good heat transfer from the components arranged on the boards to the cooling liquid flowing through the cooling channel 30 is ensured.
  • the cooling channel 30 extends at least over the areas of the boards 29 containing heat-generating components.
  • the lid 23 and thus also the web 28 is just like the extruded section 15 made of aluminum, so that a particularly good thermal conductivity is given.
  • the lid 23 has a central opening which is closed by a plastic casting 31 or by a potting compound.
  • a connector 32 is cast with contacts 33 for connecting the electronics unit 4.
  • the contacts 33 are electrically connected to the arranged on the two boards 29 components through which the Kunststoffangußteil 31.
  • the two profile channels 19 a are each connected transversely through an interruption 34 a of the inner wall 17.
  • the two profile channels 19b in the same axial regions are each connected transversely to each other by an interruption 34b of the inner wall 17.
  • the interruptions 34a, 34b can be obtained in a particularly simple manner by milling away a narrow region of the inner wall 17 extending parallel to the outer wall 16.
  • the interruptions 34a, 34b form collection chambers through which liquid can flow from a profile channel 19a or 19b to the associated second profile channel 19a or 19b.
  • the cooling channel 30 opens on both sides into a respective interruption 34a or 34b forming a collecting space.
  • the pump housing 5 has two connection channels 35a and 35b which originate from regions of different pressure of the pump chamber 3 and open into the interruptions 34a and 34b arranged on the pump housing 5.
  • the communication passage 35a extends from a higher pressure region of the pump chamber 3 to the disconnection 34a, whereas the communication passage 35b extends from a lower pressure region of the pump chamber 3 to the interruption 34b.
  • the two profile channels 19a together with the connecting channel 35a serve as a high-pressure conveying channel
  • the two profile channels 19b together with the connecting channel 35b function as a low-pressure conveying channel.
  • a small proportion of the delivered liquid flows as cooling liquid to the interruption 34a arranged on the electronic unit 4, from there through the cooling channel 30 into the opposite interruption 34b and then through the low-pressure conveying channel 19b, 35b back into the pump chamber 3 flow back.

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)

Claims (14)

  1. Pompe centrifuge qui est entraînée par un moteur électrique, lequel est commandé par une unité électronique disposée sur la face frontale du moteur électrique écartée de la chambre de pompe, le moteur électrique présentant au moins un canal de transport à travers lequel le liquide refoulé est guidé pour le refroidissement de l'unité électronique depuis la chambre de pompe jusqu'à l'unité électronique, le moteur électrique (2) présentant au moins deux canaux de transport (19a, 35a et 19b, 35b) qui sont guidés depuis des zones de pression différentes de la pompe centrifuge (1), en tant que canal de transport haute pression (19a, 35a) ou respectivement canal de transport basse pression (19b, 35b), jusqu'à l'unité électronique (4),
    caractérisée par le fait qu'au moins un canal de refroidissement (30) est guidé à travers l'unité électronique (4), lequel est raccordé aux deux canaux de transport (19a, 35a et 19b, 35b) de telle manière que le liquide amené à l'unité électronique (4) passe à travers l'unité électronique (4).
  2. Pompe centrifuge selon la revendication 1,
    caractérisée par le fait que le canal de refroidissement (30) est formé par une fente de refroidissement avec de préférence une section transversale rectangulaire.
  3. Pompe centrifuge selon la revendication 1 ou 2,
    caractérisée par le fait que l'unité électronique (4) présente au moins une platine (29) avec des composants électriques ou respectivement électroniques qui sont disposés de telle manière que l'axe (27) du moteur électrique (2) s'étend au moins approximativement dans le plan de la platine (29) ou dans un plan parallèle à celui-ci.
  4. Pompe centrifuge selon la revendication 2 ou 3,
    caractérisée par le fait que la fente de refroidissement (30) s'étend parallèlement à la platine (29) à faible distance.
  5. Pompe centrifuge selon la revendication 4,
    caractérisée par le fait que l'unité électronique (4) présente deux platines (29) qui sont adjacentes aux deux faces latérales de la fente de refroidissement (30).
  6. Pompe centrifuge selon la revendication 5,
    caractérisée par le fait que les composants électriques ou respectivement électroniques des deux platines (29) sont reliés électriquement entre eux et/ou avec une fiche de raccordement (32) disposée à l'extérieur de l'unité électronique (4).
  7. Pompe centrifuge selon l'une des revendications précédentes,
    caractérisée par le fait que les canaux de transport (19a, 35a et 19b, 35b) s'étendent à l'intérieur du carter (14) du moteur ainsi qu'en particulier aussi à l'intérieur du carter (5) de la pompe et/ou à l'intérieur du carter (22) de l'unité électronique (4).
  8. Pompe centrifuge selon la revendication 7,
    caractérisée par le fait que le carter (14) du moteur et le carter (22) de l'unité électronique (4) sont formés par un profilé de coulée continue (15) continu rond ou polygonal à l'intérieur duquel sont formés au moins deux canaux profilés (19a, 19b) s'étendant en direction longitudinale qui sont raccordés en tant que canaux de transport à la chambre de pompe (3).
  9. Pompe centrifuge selon la revendication 8,
    caractérisée par le fait que le carter (14) du moteur est formé par un profilé de coulée continue (15) rectangulaire dans les angles duquel est formé respectivement un canal profilé (19) s'étendant en direction longitudinale, deux canaux profilés (19a) adjacents l'un à l'autre étant reliés l'un à l'autre au moins dans la zone de l'unité électronique (4) et au canal de refroidissement (30) en tant que canaux de transport haute pression et les deux autres canaux profilés (19b) étant reliés l'un à l'autre au moins dans la zone de l'unité électronique (4) et au canal de refroidissement (30) en tant que canaux de transport basse pression.
  10. Pompe centrifuge selon la revendication 9,
    caractérisée par le fait que le profilé de coulée continue (15) présente une paroi extérieure (16) conformée au moins pour l'essentiel quadratique avec une paroi intérieure (17) contenue dedans conformée au moins pour l'essentiel ronde, la paroi intérieure (17) étant formée, dans les zones médianes (18), sur les quatre parois latérales de la paroi extérieure (16) de telle manière qu'un canal profilé (19a, 19b) est formé respectivement dans les quatre angles.
  11. Pompe centrifuge selon la revendication 9 ou 10,
    caractérisée par le fait que les liaisons entre deux canaux profilés (19a ou respectivement 19b) adjacents l'un à l'autre sont formés par des évidements ou des vides (34a, 34b) dans la zone de paroi intérieure (17) du profilé de coulée continue (15).
  12. Pompe centrifuge selon la revendication 1,
    caractérisée par le fait que le canal de refroidissement (30) s'étend transversalement depuis un côté jusqu'au côté opposé d'une collerette (24) qui est formée sur un couvercle (23) fermant du côté frontal le profilé de coulée continue (15) ou respectivement le carter (22) de l'unité électronique (4) et qui s'étend jusqu'à l'intérieur du carter (22) de telle manière qu'il est en appui étanche sur les parois intérieures (17) et par les extrémités du canal de refroidissement (30) sur les évidements ou vides (34a, 34b) dans la zone de paroi intérieure (17) du profilé de coulée continue (15).
  13. Pompe centrifuge selon l'une des revendications 8 à 12,
    caractérisée par le fait qu'un première paroi transversale (13) est logée dans le profilé de coulée continue (15) entre le moteur électrique (2) et la carter (5) de la pompe.
  14. Pompe centrifuge selon l'une des revendications 8 à 13,
    caractérisée par le fait qu'une seconde paroi transversale (26) est logée dans le profilé de coulée continue (15) entre le moteur électrique (2) et l'unité électronique (4).
EP01106106A 2000-03-17 2001-03-13 Pompe centrifugale avec unité électronique refroidie Expired - Lifetime EP1134419B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10013042 2000-03-17
DE10013042A DE10013042A1 (de) 2000-03-17 2000-03-17 Kreiselpumpe mit gekühlter Elektronikeinheit

Publications (3)

Publication Number Publication Date
EP1134419A2 EP1134419A2 (fr) 2001-09-19
EP1134419A3 EP1134419A3 (fr) 2002-10-09
EP1134419B1 true EP1134419B1 (fr) 2006-12-20

Family

ID=7635112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01106106A Expired - Lifetime EP1134419B1 (fr) 2000-03-17 2001-03-13 Pompe centrifugale avec unité électronique refroidie

Country Status (2)

Country Link
EP (1) EP1134419B1 (fr)
DE (2) DE10013042A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10064708A1 (de) * 2000-12-22 2002-07-11 Grundfos As Hauswasserwerk
DE10214307A1 (de) * 2002-03-28 2003-10-23 Nash Elmo Ind Gmbh Verdichtereinheit
DE10301613B4 (de) * 2003-01-17 2006-08-31 Pierburg Gmbh Motor-Pumpeneinheit
US7155916B2 (en) * 2003-09-30 2007-01-02 General Motors Corporation Supply unit cooling
EP2027015A1 (fr) * 2006-06-12 2009-02-25 Mag Aerospace Industries, Inc. Pompe à vide régénérative pour avion et autres véhicules
DE102006032356B3 (de) 2006-07-13 2008-04-10 Diehl Ako Stiftung & Co. Kg Antriebsvorrichtung für eine Waschmaschine
DE102007036238A1 (de) * 2007-08-02 2009-02-05 Continental Automotive Gmbh Flüssigkeitspumpe
DE102009029622A1 (de) 2009-09-21 2011-03-24 Robert Bosch Gmbh Förderpumpe für ein Kraftstoffeinspritzsystem einer Brennkraftmaschine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3609311A1 (de) * 1986-03-20 1987-10-01 Homa Pumpenfabrik Gmbh Kreiselpumpe
DE3820003A1 (de) * 1988-06-11 1989-12-21 Grundfos Int Tauchpumpenaggregat
JPH05187385A (ja) * 1992-01-09 1993-07-27 Mitsubishi Electric Corp 電動ポンプ
DE4327735A1 (de) * 1993-08-18 1995-02-23 Grundfos As Vorrichtung zum Liefern von Flüssigkeit
JP3077490B2 (ja) * 1993-12-28 2000-08-14 株式会社荏原製作所 ポンプ組立体
DE19545561A1 (de) * 1995-12-07 1997-06-12 Pierburg Ag Pumpe-Motoreinheit
DE19624145A1 (de) * 1996-06-18 1998-01-08 Wilo Gmbh Elektromotor
US5997261A (en) * 1997-10-31 1999-12-07 Siemens Canada Limited Pump motor having fluid cooling system
US5949171A (en) * 1998-06-19 1999-09-07 Siemens Canada Limited Divisible lamination brushless pump-motor having fluid cooling system
DE19842169A1 (de) * 1998-09-15 2000-03-16 Wilo Gmbh Rohrpumpe

Also Published As

Publication number Publication date
DE50111661D1 (de) 2007-02-01
DE10013042A1 (de) 2001-09-20
EP1134419A3 (fr) 2002-10-09
EP1134419A2 (fr) 2001-09-19

Similar Documents

Publication Publication Date Title
EP3179106B1 (fr) Pompe à liquide entraînée par un moteur électrique
DE10317580B4 (de) Elektrische Wechselrichtervorrichtung mit einem Flüssigkeitskanal sowie Elektrofahrzeug mit einer derartigen Wechselrichtervorrichtung
EP0735650B2 (fr) Moteur électrique
DE102014113412B3 (de) Strömungsgekühlte Kühlmittelpumpe mit Nassläufer
EP2458633A2 (fr) Système semi-conducteur de puissance
WO2009015946A1 (fr) Moteur électrique
WO2020207537A1 (fr) Entraînement électrique comprenant une section d'échangeur de chaleur
EP1134419B1 (fr) Pompe centrifugale avec unité électronique refroidie
EP3672029A1 (fr) Fermeture d'encoche d'une machine électrique, couronne de refroidissement pour une machine électrique, machine électrique et procédé de fabrication d'une couronne de refroidissement
WO2020216507A1 (fr) Machine électrique à support de couple dans le carter
DE19646195A1 (de) Modular aufgebauter stranggepreßter Flüssigkeitskühlkörper mit verbesserten und einstellbaren Kühleigenschaften
DE4014918C2 (fr)
EP0604481B1 (fr) Resistance a grande puissance refroidie par liquide
EP3182565B1 (fr) Boîtier électronique comprenant des ailettes
EP3016114A1 (fr) Resistance electrique
EP3593078B1 (fr) Dispositif de refroidissement
DE102011119755A1 (de) Kühlvorrichtung und Kühlsystem
EP3940242A1 (fr) Turbomachine ayant des câbles de raccordement encapsulés dans une résine
EP4005069A1 (fr) Machine électrique
EP3459110B1 (fr) Unité de boîte de refroidissement et système électronique de puissance doté d'une unité de boîte de refroidissement
EP1132623A2 (fr) Groupe électropompe submersible
DE202013004162U1 (de) Wasserkühlmodul
EP3499039B1 (fr) Pompe à vide à vis
DE102004004440B4 (de) Kühlvorrichtung für ein elektronisches Bauelement, insbesondere für einen Mikroprozessor
EP1895825A1 (fr) Structure pour une alimentation pourvue d'un dispositif de refroidissement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RIC1 Information provided on ipc code assigned before grant

Free format text: 7F 04D 13/06 A, 7F 04D 15/00 B, 7F 04D 29/58 B

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20030312

AKX Designation fees paid

Designated state(s): DE FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: WILO AG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50111661

Country of ref document: DE

Date of ref document: 20070201

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070205

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070921

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50111661

Country of ref document: DE

Representative=s name: PATENTANWAELTE TER SMITTEN EBERLEIN RUETTEN PA, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 50111661

Country of ref document: DE

Owner name: PIERBURG PUMP TECHNOLOGY GMBH, DE

Free format text: FORMER OWNER: WILO AG, 44263 DORTMUND, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 50111661

Country of ref document: DE

Representative=s name: PATENTANWAELTE TER SMITTEN EBERLEIN-VAN HOOF R, DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20161006 AND 20161012

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: PIERBURG PUMP TECHNOLOGY GMBH, DE

Effective date: 20170425

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180322

Year of fee payment: 18

Ref country code: GB

Payment date: 20180326

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20180326

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20190321

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50111661

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190313

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200313