EP1614208A1 - Moteur a courant continu sans balais - Google Patents

Moteur a courant continu sans balais

Info

Publication number
EP1614208A1
EP1614208A1 EP04716219A EP04716219A EP1614208A1 EP 1614208 A1 EP1614208 A1 EP 1614208A1 EP 04716219 A EP04716219 A EP 04716219A EP 04716219 A EP04716219 A EP 04716219A EP 1614208 A1 EP1614208 A1 EP 1614208A1
Authority
EP
European Patent Office
Prior art keywords
motor
plug
brushless
motor according
lead frame
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.)
Withdrawn
Application number
EP04716219A
Other languages
German (de)
English (en)
Inventor
Jens Schäfer
Martin Steigerwald
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.)
IHO Holding GmbH and Co KG
Original Assignee
INA Schaeffler KG
Schaeffler 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 INA Schaeffler KG, Schaeffler KG filed Critical INA Schaeffler KG
Publication of EP1614208A1 publication Critical patent/EP1614208A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/08—Insulating casings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/02—Casings or enclosures characterised by the material thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports

Definitions

  • the invention relates to a BLDC motor, in particular according to the preamble of patent claim 1.
  • DE 100 18 728 A1 discloses a BLDC motor which has at least one cover for axially closing a motor housing of a BLDC motor and components such as current paths, plug contacts, Hall sensors and connections for the BLDC motor. These components are used for its electronic commutation.
  • BLDC motors usually have a circuit board on which the Hall sensors, which are used to detect their direction of rotation and speed, are soldered on. A connector is also provided, the connector contacts of which are connected to the Hall sensors and the phases of the BLDC motor. Due to the temperature limits of the board and solder, these BLDC motors are not suitable for use in the internal combustion engine compartment of a motor vehicle, since temperatures of up to 150 ° C prevail, to which the self-heating of the BLDC motor of at least 10 ° to 20 ° C must be added.
  • Object of the invention is not suitable for use in the internal combustion engine compartment of a motor vehicle, since temperatures of up to 150 ° C prevail, to which the self-heating of the BLDC motor of at least 10 ° to 20 ° C must be added.
  • the object of the invention is to create a BLDC motor which can withstand maximum temperatures of at least 170 ° C. and has a small axial space requirement and low manufacturing costs.
  • the plug module according to the invention and the extrusion-coated lead frame are made from sufficiently heat-resistant materials, temperature-related failures of the BLDC motor are eliminated. That means increased reliability and improved functionality of the same.
  • the assembly of the BLDC motor is simplified by the plug module, which replaces a circuit board and a cover, and the axial space requirement is reduced accordingly.
  • the lead frame on the plug side is designed as a plug contact for the BLDC motor and as another plug contact for Hall sensors and on the motor side as a connection for the phases as a BLDC motor and as another connection for the Hall sensors. Since the lead frame is formed in one piece with the plug contacts and the connections, the connections which are otherwise necessary are unnecessary, as a result of which the production outlay is reduced and the reliability is increased. The reliability of the connector module is also promoted by the fact that the Hall sensors are attached to the lead frame directly and preferably by welding. The welded connection has the advantage of high heat resistance compared to the soldered connection.
  • the position fixing of the plug module with respect to the motor housing which is required for the exact radial and rotational position of the Hall sensors, is achieved in that the same has a centering collar and a rotation fixation.
  • the stator must be centered and rotationally fixed in order to correspond to module.
  • the connections of the phases of the BLDC motor and dowel pins, dowel screws, dowel sleeves or a fixing lug, which engages in a corresponding counter-contour of the motor housing, can be used as rotational fixation.
  • the centering collar can also act as a sealing collar.
  • an O-ring is inserted into a radial groove in the motor housing; in the case of an axial seal, the axial bearing surface of the centering collar on the motor side serves as a sealing surface for an O-ring located in the motor housing.
  • the O-ring grooves can also be made radially or axially in the centering collar. In this case, the corresponding counter surfaces in the motor housing serve as sealing surfaces.
  • the extrusion coating of the lead frame is oil-tight.
  • the BLDC motor is usually protected against the ingress of oil from the adjustment gear by means of a shaft sealing ring. If such a seal is to be dispensed with, the lead frame must be overmolded in an oil-tight manner. This prevents the oil entering the BLDC motor from flowing out along the current paths via the plug contacts the environment arrives. In addition, there are no leakage currents between the current paths in this way.
  • the seal between the motor housing and the plug module is also made using O-rings, paper seals or liquid seals.
  • the lead frame can, however, also be plugged into the plug module, for example via bores in the lead frame and plastic pins on the plug module. However, it can also be injection molded on one side or only partially encapsulated if the engine is oil-tight.
  • the plug contacts are arranged in a plug which is molded onto the plug module.
  • the plug can be attached to the plug module both radially and axially or in a mixed form (radially axially).
  • the plug module can also be implemented with a cable outlet, the cable having a plug at its end.
  • Figure 1 is an interior view of a connector module
  • FIG. 2 shows a side view of the plug module according to FIG. 1;
  • FIG. 3 shows an external view of the plug module according to FIG. 1. Detailed description of the drawing
  • the connector module 1 shown in Figure 1 is made of heat-resistant plastic, with which a likewise heat-resistant lead frame is molded.
  • the lead frame serves as a current path and connects plug contacts 2 with connections 5 for phases of the stator of a brushless DC motor (BLDC motor), not shown.
  • BLDC motor brushless DC motor
  • the plug contacts 2, 3 and the connections 5, 6 are components of the lead frame.
  • the Hall sensors 4 and the other connections 6 are connected in a heat-resistant manner by welding.
  • the plug module 1 has a centering collar 7, which is used to center it relative to a motor housing of the BLDC motor, not shown.
  • the stator of the BLDC motor is also centered in this motor housing. Since the connector module 1 and the stator are also rotationally fixed relative to the motor housing, an exact rotational and radial position of the connections 5, 6 is guaranteed.
  • a bearing seat 8 is arranged coaxially to the centering collar 7, in which a motor bearing is pressed or glued.
  • the engine mount can also be overmolded in the installed position.
  • injection-molded or joined reinforcement rings are provided.
  • oil of the internal combustion engine can penetrate into the BLDC motor via this adjustment gear.
  • An oil-tight encapsulation of the lead frame prevents leakage currents between the current paths and prevents oil from escaping along the current paths via the plug contacts 2, 3.
  • a connector 10 shown in partial section in FIG. 1 is molded onto the connector module 1.
  • FIG. 2 shows a side view of the plug module 1, with the centering collar 7, the Hall sensors 4, the connections 5 and the plug 10. The low overall height of the plug module 1 can be seen.
  • FIG. 3 shows the external view of the plug module 1 with the three through holes 9 and the molded plug 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un moteur à courant continu sans balais, à commutation électronique, comportant au moins un couvercle servant à la fermeture axiale de la carcasse de moteur. L'exigence relative à des températures de fonctionnement admissibles élevées pour ce moteur à courant continu sans balais est remplie par le fait que le couvercle se présente sous la forme d'un module connecteur (1) constitué d'une matière plastique moulée par injection résistant à la chaleur et que les pistes conductrices de courant se présentent sous la forme d'une grille étampée surmoulée résistant à la chaleur.
EP04716219A 2003-04-08 2004-03-02 Moteur a courant continu sans balais Withdrawn EP1614208A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003115871 DE10315871A1 (de) 2003-04-08 2003-04-08 Bürstenloser Gleichstrommotor (BLDC-Motor)
PCT/EP2004/002056 WO2004091072A1 (fr) 2003-04-08 2004-03-02 Moteur a courant continu sans balais

Publications (1)

Publication Number Publication Date
EP1614208A1 true EP1614208A1 (fr) 2006-01-11

Family

ID=33016197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04716219A Withdrawn EP1614208A1 (fr) 2003-04-08 2004-03-02 Moteur a courant continu sans balais

Country Status (3)

Country Link
EP (1) EP1614208A1 (fr)
DE (1) DE10315871A1 (fr)
WO (1) WO2004091072A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4783012B2 (ja) 2004-12-28 2011-09-28 日立オートモティブシステムズ株式会社 電動パワーステアリング用モータ及びその製造方法
ITMI20050518A1 (it) * 2005-03-30 2006-09-30 Abb Service Srl Motore elettrico
DE102005021726A1 (de) * 2005-05-11 2006-11-16 Schaeffler Kg Modul für einen bürstenlosen Elektromotor und Verfahren zur Herstellung desselben
DE102005046759A1 (de) * 2005-09-29 2007-04-05 BSH Bosch und Siemens Hausgeräte GmbH Anschlussplatte für Elektromotor und Elektromotor
DE102007046227A1 (de) 2007-01-19 2008-07-24 Johnson Controls Gmbh Gleichstrommotor in Kompaktbauweise
JP4760813B2 (ja) 2007-10-09 2011-08-31 トヨタ自動車株式会社 アクチュエータのカバー構造、アクチュエータおよび動力伝達装置
DE102008059005A1 (de) * 2008-11-25 2010-05-27 Schaeffler Kg Verstellvorrichtung zur Verstellung einer relativen Drehwinkellage zweier Wellen und Verfahren zum Betrieb eines Aktuators, insbesondere einer solchen Verstellvorrichtung
DE102011014309A1 (de) * 2011-03-18 2012-09-20 Wilo Se Elektromotorengehäuse mit Flansch
DE102013212932A1 (de) 2013-07-03 2015-01-08 Schaeffler Technologies Gmbh & Co. Kg Statormodul eines Elektromotors
DE102016220269A1 (de) 2016-10-17 2018-04-19 Mahle International Gmbh Elektromotor
DE102018200472A1 (de) * 2018-01-12 2019-07-18 Volkswagen Aktiengesellschaft Verbindungsmodul für einen Elektromotor eines Kraftfahrzeugs bzw. Elektromotor für ein Kraftfahrzeug

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430798A1 (de) * 1994-08-30 1996-03-07 Siemens Ag Stanzgitter zur Verbindung von elektrischen Bauelementen
DE3925702A1 (de) * 1989-08-03 1991-02-07 Bosch Gmbh Robert Vorrichtung fuer die fixierung und den anschluss eines elektromotors
JPH0823666A (ja) * 1994-07-07 1996-01-23 Hitachi Ltd 内転形ブラシレスモータ
EP0731551A1 (fr) * 1995-03-08 1996-09-11 KSB Aktiengesellschaft Moteur électrique
US5770902A (en) * 1995-11-02 1998-06-23 Globe Motors Motor termination board
DE19710015A1 (de) * 1997-03-12 1998-09-17 Bosch Gmbh Robert Motor mit Drehzahlabgriff über einen Hall-Sensor
DE19748982A1 (de) * 1997-11-06 1999-06-02 Bosch Gmbh Robert Bauteilhalter für einen Hall-Sensor und Verfahren zum Herstellen eines Bauteilhalters
DE10004310A1 (de) * 2000-02-01 2001-08-09 Bosch Gmbh Robert Stanzgitter mit integriertem Hall-Sensor für Drehzahlabgriff
DE10032171A1 (de) * 2000-07-01 2002-01-17 Bosch Gmbh Robert Elektrisch betriebener Motor
DE10042508A1 (de) * 2000-08-30 2002-03-21 Bosch Gmbh Robert Bauteil, insbesondere Bürstenhalter, für eine elektrische Maschine bzw. Verfahren zur Herstellung eines solchen Bauteils

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004091072A1 *

Also Published As

Publication number Publication date
DE10315871A1 (de) 2004-10-21
WO2004091072A1 (fr) 2004-10-21

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