WO2003088448A2 - Fastening of the stator of a flat elevator motor - Google Patents

Fastening of the stator of a flat elevator motor Download PDF

Info

Publication number
WO2003088448A2
WO2003088448A2 PCT/FI2003/000284 FI0300284W WO03088448A2 WO 2003088448 A2 WO2003088448 A2 WO 2003088448A2 FI 0300284 W FI0300284 W FI 0300284W WO 03088448 A2 WO03088448 A2 WO 03088448A2
Authority
WO
WIPO (PCT)
Prior art keywords
stator
mounting part
fastening arrangement
motor
arrangement according
Prior art date
Application number
PCT/FI2003/000284
Other languages
French (fr)
Other versions
WO2003088448A3 (en
Inventor
Esko Aulanko
Jorma Mustalahti
Jussi Huppunen
Original Assignee
Kone Corporation
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
Priority to KR1020047013765A priority Critical patent/KR100989352B1/en
Priority to JP2003585256A priority patent/JP4673555B2/en
Application filed by Kone Corporation filed Critical Kone Corporation
Priority to EA200401003A priority patent/EA006264B1/en
Priority to CA2477633A priority patent/CA2477633C/en
Priority to DE60326555T priority patent/DE60326555D1/en
Priority to MXPA04010168A priority patent/MXPA04010168A/en
Priority to BR0309286-0A priority patent/BR0309286A/en
Priority to EP03715002A priority patent/EP1495529B1/en
Priority to UA20040807139A priority patent/UA77755C2/en
Priority to AU2003219206A priority patent/AU2003219206B2/en
Publication of WO2003088448A2 publication Critical patent/WO2003088448A2/en
Publication of WO2003088448A3 publication Critical patent/WO2003088448A3/en
Priority to US10/923,868 priority patent/US6956309B2/en
Priority to NO20044100A priority patent/NO330827B1/en
Priority to EGNA2004000108 priority patent/EG23596A/en
Priority to HK05108216A priority patent/HK1076201A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/182—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to stators axially facing the rotor, i.e. with axial or conical air gap
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • 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
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
    • H02K7/1008—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys structurally associated with the machine rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/223—Heat bridges

Definitions

  • the present invention relates to an arrangement for mounting the stator in a flat elevator motor having a motor body, a stator fastened to it and a rotor.
  • the physical dimensions of the elevator machine have a relevance to the size of the elevator shaft and/or building, depending on where the machine is placed.
  • the thickness of the elevator machine has an essential importance regarding the space required.
  • US patent specification 5,962,948 discloses an elevator machine designed to be placed in the elevator shaft and having a flat, discoid elevator motor comprising a stator and a rotor.
  • the rotor comprises a rotor disc provided with perma- nent magnets a traction sheave mounted on it.
  • the stator has a stator core and windings. The stator is fastened between the motor body and the rotor by a screw fastening technique.
  • the object of the present invention is to achieve a new type of mounting struc- ture for fastening the stator to the body of the motor, by means of which it is possible to improve the cooling of the stator and to achieve a stator structure that is very compact as compared with prior-art solutions.
  • the stator is fitted inside a trough-like mounting part, wherein the space between the stator winding and the mounting part is filled with a thermally conducting filler serving to conduct heat from the stator to the mounting part.
  • the invention makes it possible to achieve an economical, simple and reliable stator fastening arrangement. In addition, efficient cooling and consequently a high power density as well is achieved.
  • the insulating gaps can be smaller than in prior-art solutions, allowing the elevator motor to be made shorter in the axial direction than prior-art motors, which is very im- portant especially in the case of elevator motors designed to be placed in the elevator shaft.
  • the use of a filler prevents soiling of the stator windings. Therefore, the protection rating of the motor can be relatively easily raised.
  • the mounting part and the stator form a single unit, which leads to a rigid and firm structure.
  • the figure presents a flat, discoid elevator motor 2 used in a gearless elevator machine placed close to a guide rail 1. It comprises a disc 4 formed in the motor body 3 and a stator 5 fastened to said disc.
  • the stator comprises a winding core 51 and windings 52.
  • Mounted with bearings 3 on the body 3 are a round rotor disc 7 and a traction sheave 8.
  • the disc 4 has on its inner side a recess 41 formed for the rotor.
  • the stator 5 is mounted outside the rotor 7, i.e. on the opposite side of the disc 4 in the trough 91 of a trough-shaped mounting part 9 made of e.g. aluminum.
  • the mounting part 9 is fastened to the disc 4 with screws 10 at the outer edge.
  • the mounting part 9 is provided with cooling fins 92 on the outside.
  • the space 11 between the winding 52 and the mounting part 9 is filled with resin 12, which has a good thermal conductivity.
  • the resin also binds the stator fast to the mounting part 9, no other fastening elements being thus needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)
  • Linear Motors (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

A stator fastening arrangement in a flat elevator motor (2) having a motor body (4) in which are arranged a stator (5) comprising a stator core (51) and a winding (52), and a rotor (7) fitted in conjunction with the stator. The stator (5) is fitted within a substantially trough-like mounting part (9) fastened to the motor body (4), and the space between the mounting part (9) and the stator (5) is filled with a thermally conductive filling material (12) serving to conduct heat from the stator to the mounting part (9).

Description

FASTENING OF THE STATOR OF A FLAT ELEVATOR MOTOR
The present invention relates to an arrangement for mounting the stator in a flat elevator motor having a motor body, a stator fastened to it and a rotor.
The physical dimensions of the elevator machine have a relevance to the size of the elevator shaft and/or building, depending on where the machine is placed. When the elevator machine is placed in the elevator shaft or beside it, the thickness of the elevator machine has an essential importance regarding the space required.
US patent specification 5,962,948 discloses an elevator machine designed to be placed in the elevator shaft and having a flat, discoid elevator motor comprising a stator and a rotor. The rotor comprises a rotor disc provided with perma- nent magnets a traction sheave mounted on it. The stator has a stator core and windings. The stator is fastened between the motor body and the rotor by a screw fastening technique.
The object of the present invention is to achieve a new type of mounting struc- ture for fastening the stator to the body of the motor, by means of which it is possible to improve the cooling of the stator and to achieve a stator structure that is very compact as compared with prior-art solutions.
In the mounting structure of the invention, the stator is fitted inside a trough-like mounting part, wherein the space between the stator winding and the mounting part is filled with a thermally conducting filler serving to conduct heat from the stator to the mounting part. The characteristic features of the invention are presented in detail in the claims below.
The invention makes it possible to achieve an economical, simple and reliable stator fastening arrangement. In addition, efficient cooling and consequently a high power density as well is achieved. In the solution of the invention, the insulating gaps can be smaller than in prior-art solutions, allowing the elevator motor to be made shorter in the axial direction than prior-art motors, which is very im- portant especially in the case of elevator motors designed to be placed in the elevator shaft. In addition, the use of a filler prevents soiling of the stator windings. Therefore, the protection rating of the motor can be relatively easily raised.
Moreover, the mounting part and the stator form a single unit, which leads to a rigid and firm structure.
In the following, the invention will be described in detail by the aid of an example with reference to the attached drawing, which illustrates the stator mounting arrangement of the invention.
The figure presents a flat, discoid elevator motor 2 used in a gearless elevator machine placed close to a guide rail 1. It comprises a disc 4 formed in the motor body 3 and a stator 5 fastened to said disc. The stator comprises a winding core 51 and windings 52. Mounted with bearings 3 on the body 3 are a round rotor disc 7 and a traction sheave 8. The disc 4 has on its inner side a recess 41 formed for the rotor.
The stator 5 is mounted outside the rotor 7, i.e. on the opposite side of the disc 4 in the trough 91 of a trough-shaped mounting part 9 made of e.g. aluminum. The mounting part 9 is fastened to the disc 4 with screws 10 at the outer edge. The mounting part 9 is provided with cooling fins 92 on the outside. The space 11 between the winding 52 and the mounting part 9 is filled with resin 12, which has a good thermal conductivity. Thus, the winding 52 and especially its ends are effectively cooled inside the mounting part 9. The resin also binds the stator fast to the mounting part 9, no other fastening elements being thus needed.
It is obvious to the person skilled in the art that different embodiments of the invention are not limited to the example described above, but that they may be varied within the scope of the claims presented below.

Claims

1. Stator fastening arrangement in a flat elevator motor (2) having a motor body
(4) provided with a stator (5) comprising a stator core (51) and a winding (52), and a rotor (7) fitted in conjunction with the stator, characterized in that the stator (5) is fitted within a substantially trough-like mounting part (9) fastened to the motor body (4), and that the space between the mounting part (9) and the stator (5) is filled with a ther- mally conductive filling material (12) serving to conduct heat from the stator to the mounting part (9).
2. Fastening arrangement according to claim 1 , characterized in that the stator
(5) is fastened to the mounting part (9) by means of the filling material.
3. Fastening arrangement according to claim 1 , characterized in that the filling material is a castable material, preferably resin.
4. Fastening arrangement according to claim 1 in an elevator motor having a discoid body (4) and a rotor (7), characterized in that the trough-like mounting part (9) is fastened to the motor body (4) at the outer edge by means of fastening elements (10), the stator being disposed on the opposite side of the motor body (4) relative to the rotor.
5. Fastening arrangement according to claim 1 , characterized in that the mounting part (9) is made of aluminum.
6. Fastening arrangement according to claim 1 , characterized in that the mounting part (9) is provided with cooling fins (92).
7. Fastening arrangement according to claim 1 , characterized in that the electric motor is a discoid elevator motor.
PCT/FI2003/000284 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor WO2003088448A2 (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
UA20040807139A UA77755C2 (en) 2002-04-17 2003-04-14 Stator fastening arrangement for a flat elevator motor
EP03715002A EP1495529B1 (en) 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor
EA200401003A EA006264B1 (en) 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor
JP2003585256A JP4673555B2 (en) 2002-04-17 2003-04-14 Flat elevator motor stator fixing device
DE60326555T DE60326555D1 (en) 2002-04-17 2003-04-14 MOUNTING THE STATUS OF A FLAT MOTOR
MXPA04010168A MXPA04010168A (en) 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor.
AU2003219206A AU2003219206B2 (en) 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor
KR1020047013765A KR100989352B1 (en) 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor
CA2477633A CA2477633C (en) 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor
BR0309286-0A BR0309286A (en) 2002-04-17 2003-04-14 Arrangement for stator mounting on a flattened lift motor
US10/923,868 US6956309B2 (en) 2002-04-17 2004-08-24 Fastening of the stator of a flat elevator motor
NO20044100A NO330827B1 (en) 2002-04-17 2004-09-27 Attaching the stator to a flat lift motor
EGNA2004000108 EG23596A (en) 2002-04-17 2004-10-14 Fastening of the stator of a flat elevator motor
HK05108216A HK1076201A1 (en) 2002-04-17 2005-09-20 Fastening of the stator of a flat elevator motor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20020740A FI116789B (en) 2002-04-17 2002-04-17 Attachment of the stator in a flat lift motor
FI20020740 2002-04-17

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/923,868 Continuation US6956309B2 (en) 2002-04-17 2004-08-24 Fastening of the stator of a flat elevator motor

Publications (2)

Publication Number Publication Date
WO2003088448A2 true WO2003088448A2 (en) 2003-10-23
WO2003088448A3 WO2003088448A3 (en) 2004-01-08

Family

ID=8563783

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2003/000284 WO2003088448A2 (en) 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor

Country Status (20)

Country Link
US (1) US6956309B2 (en)
EP (1) EP1495529B1 (en)
JP (1) JP4673555B2 (en)
KR (1) KR100989352B1 (en)
CN (1) CN100392955C (en)
AT (1) ATE425572T1 (en)
AU (1) AU2003219206B2 (en)
BR (1) BR0309286A (en)
CA (1) CA2477633C (en)
DE (1) DE60326555D1 (en)
EA (1) EA006264B1 (en)
EG (1) EG23596A (en)
ES (1) ES2319754T3 (en)
FI (1) FI116789B (en)
HK (1) HK1076201A1 (en)
MX (1) MXPA04010168A (en)
NO (1) NO330827B1 (en)
UA (1) UA77755C2 (en)
WO (1) WO2003088448A2 (en)
ZA (1) ZA200407030B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1834917B1 (en) 2006-03-16 2015-05-20 ThyssenKrupp Aufzugswerke GmbH Elevator system with an electric motor
GB0613941D0 (en) * 2006-07-13 2006-08-23 Pml Flightlink Ltd Electronically controlled motors
US7943463B2 (en) * 2009-04-02 2011-05-17 Micron Technology, Inc. Methods of semiconductor processing involving forming doped polysilicon on undoped polysilicon
JP5926532B2 (en) * 2011-10-27 2016-05-25 コベルコ建機株式会社 Electric motor
WO2014037608A1 (en) * 2012-09-05 2014-03-13 Kone Corporation Axial flux motor intended for fixing to a machine and method for fixing the axial flux motor to a machine
WO2014193341A1 (en) * 2013-05-28 2014-12-04 Otis Elevator Company Cooling of machine for elevator system
RU2710902C1 (en) * 2018-09-12 2020-01-14 Владимир Анатольевич Кузнецов Frameless synchronous rotary electric machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689512A (en) * 1985-06-06 1987-08-25 Elevator Gmbh Electric motor
EP0327338A2 (en) * 1988-02-03 1989-08-09 Mitsubishi Denki Kabushiki Kaisha Vehicular AC generator and manufacturing method therefor
US5962948A (en) * 1993-06-28 1999-10-05 Kone Oy Elevator motor with flat construction
FR2787941A3 (en) * 1998-12-23 2000-06-30 Rene Ficheux Synchronous motor, with reduced leakage flux, for lift has aluminium ring comprising stator, placed in synthetic resin, and helping cooling of stator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742595A (en) * 1970-12-21 1973-07-03 Smith Corp A Method of manufacturing a submersible motor
CA2087763C (en) * 1992-02-11 2002-07-02 Jimmy Cochimin Stator frame for dynamoelectric machine and method for making same
ES2144055T3 (en) * 1993-06-28 2000-06-01 Kone Corp ELEVATOR MACHINERY.
FI114419B (en) * 1994-04-07 2004-10-15 Kone Corp The elevator machinery
FI941596A (en) * 1994-04-07 1995-10-08 Kone Oy The engine of an elevator
US5783888A (en) * 1994-03-17 1998-07-21 Fuji Electric Co., Ltd. Rotary electric machine
EP0874444A1 (en) * 1997-04-22 1998-10-28 General Motors Corporation Heat conducting means for electric motor or generator
EP1249064B1 (en) * 2000-10-06 2012-02-15 Valeo Equipements Electriques Moteur Rotary electric machine, and in particular motor vehicle alternator, comprising a stator elastically mounted in a heat-conductive resin
US6445095B1 (en) * 2001-01-11 2002-09-03 Ford Global Technologies, Inc. Electric machine with laminated cooling rings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689512A (en) * 1985-06-06 1987-08-25 Elevator Gmbh Electric motor
EP0327338A2 (en) * 1988-02-03 1989-08-09 Mitsubishi Denki Kabushiki Kaisha Vehicular AC generator and manufacturing method therefor
US5962948A (en) * 1993-06-28 1999-10-05 Kone Oy Elevator motor with flat construction
FR2787941A3 (en) * 1998-12-23 2000-06-30 Rene Ficheux Synchronous motor, with reduced leakage flux, for lift has aluminium ring comprising stator, placed in synthetic resin, and helping cooling of stator

Also Published As

Publication number Publication date
CN100392955C (en) 2008-06-04
ATE425572T1 (en) 2009-03-15
EA200401003A1 (en) 2005-04-28
AU2003219206A1 (en) 2003-10-27
WO2003088448A3 (en) 2004-01-08
AU2003219206B2 (en) 2007-03-15
JP4673555B2 (en) 2011-04-20
NO330827B1 (en) 2011-07-25
BR0309286A (en) 2005-02-09
NO20044100L (en) 2004-11-12
FI20020740A (en) 2003-10-18
EA006264B1 (en) 2005-10-27
CN1647345A (en) 2005-07-27
UA77755C2 (en) 2007-01-15
KR20040096651A (en) 2004-11-16
ZA200407030B (en) 2006-06-28
FI116789B (en) 2006-02-28
CA2477633C (en) 2012-01-03
CA2477633A1 (en) 2003-10-23
FI20020740A0 (en) 2002-04-17
US20050023926A1 (en) 2005-02-03
KR100989352B1 (en) 2010-10-25
HK1076201A1 (en) 2006-01-06
DE60326555D1 (en) 2009-04-23
US6956309B2 (en) 2005-10-18
EP1495529B1 (en) 2009-03-11
EP1495529A2 (en) 2005-01-12
EG23596A (en) 2006-09-24
MXPA04010168A (en) 2005-02-03
ES2319754T3 (en) 2009-05-12
JP2005523674A (en) 2005-08-04

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