Source: https://patents.google.com/patent/US6956309?oq=flatulence
Timestamp: 2018-02-18 09:02:40
Document Index: 486027937

Matched Legal Cases: ['art 9', 'art 9', 'art 9', 'art 9', 'art 9', 'art 9', 'art 9', 'art.\n2']

US6956309B2 - Fastening of the stator of a flat elevator motor - Google Patents
Fastening of the stator of a flat elevator motor
US6956309B2
US6956309B2 US10923868 US92386804A US6956309B2 US 6956309 B2 US6956309 B2 US 6956309B2 US 10923868 US10923868 US 10923868 US 92386804 A US92386804 A US 92386804A US 6956309 B2 US6956309 B2 US 6956309B2
US10923868
US20050023926A1 (en )
Jussi Huppunen
This application is a continuation of PCT/FI03/00284 filed on Apr. 14, 2003.
The present invention relates generally to a stator fastening arrangement for a flat elevator motor.
The physical dimensions of an elevator machine may be relevant to the size of the elevator shaft and/or building, depending on where the machine is located. If the elevator machine is placed in the elevator shaft or beside it, the thickness of the elevator machine may be substantially important in relation to the available space required.
U.S. Pat. No. 5,962,948 is directed to an elevator machine designed to be placed in the elevator shaft and having a flat, discoid elevator motor which includes a stator and a rotor. The rotor may include a rotor disc provided with permanent magnets, and may have a traction sheave mounted thereon. The stator may include a stator core and windings. The stator may be fastened between the motor body and the rotor by a screw fastening technique.
An example embodiment of the present invention is directed to a stator fastening arrangement for a flat elevator motor having a motor body provided with a stator. The arrangement may include a stator core, a winding, and a rotor fitted in conjunction with the stator. The stator may be fitted within a mounting part fastened to the motor body. A space provided between the mounting part and the stator may be filled with a thermally conductive filling material for conducting heat away from the stator to the mounting part. The filling material may be provided on one or more axial, outer circumferential surfaces of the stator and in contact with the mounting part so as to fasten the stator to the mounting part.
Example embodiments of the present invention will become more fully understood from the detailed description given herein below and the accompanying drawings, wherein like elements are represented by like reference numerals, which are given by way of illustration only and thus are not limitative of the exemplary embodiments of the present invention.
The FIGURE illustrates a stator fastening arrangement for a flat elevator motor having a motor body provided with a stator, in accordance with an example embodiment of the present invention.
Referring to the FIGURE, there is illustrated an example stator fastening arrangement for a flat elevator motor having a motor body provided with a stator. As shown, there is a flat, discoid elevator motor 2 which may be useable in a gearless, elevator machine placed in relative close proximity to a guide rail 1. Motor 2 may include a disc 4 formed in the motor body 3 and a stator 5 fastened to the disc 4. The stator 5 may include a winding core 51 and a plurality of windings 52. A round, rotor 7 and a traction sheave 8 may be mounted via bearings 6 on the body 3. As shown in the FIGURE, the disc 4 may include a recess 41 formed for the rotor 7 on an inner side thereof.
The stator 5 may be mounted outside the rotor 7, i.e. on the opposite side of the disc 4 in a trough 91 of a trough-shaped mounting part 9. Mounting part 9 may be made of aluminum, for example. The mounting part 9 may be fastened to the disc 4 with fastening means such as screws 10 at an outer edge thereof. The mounting part 9 may be provided with cooling fins 92 on an outside edge or circumference thereof, as shown in the FIGURE. A space 11, which may be provided between the windings 52 and the mounting part 9, may be filled with a resin 12 having a desired thermal conductivity. Thus, the windings 52 and its winding ends may be effectively cooled within the mounting part 9. The resin 12 may also bind the stator 5 fast to the mounting part 9, so that no additional fastening elements are needed.
Accordingly, the example embodiment of the present invention provides a stator fastening arrangement for a flat elevator motor having a motor body provided with a stator. The arrangement may be configured to fasten the stator to the body of the motor so as to improve the cooling of the stator and to achieve a substantially compact stator structure, as compared with prior art stator structures.
As shown in the FIGURE, the stator may be thus fitted inside a trough-like mounting part, with a space between the stator winding and mounting part filled with a thermally conducting filler. The filler thus serves to conduct heat away from the stator and to the mounting part.
The example embodiment may make it possible to achieve an economical, simple and reliable stator fastening arrangement. In addition, efficient cooling and consequently a high power density as well may be achieved. The insulating gaps (spaces) may be smaller than prior art solutions, allowing the elevator motor to be made shorter in the axial direction relative to prior art motors. This is desirable, especially when designing elevator motors for placement in the elevator shaft. In addition, the use of a filler may substantially prevent and/or eliminate soiling of the stator windings. Therefore, a protection rating of the motor can be raised. Moreover, the mounting part and the stator form a single contiguous or integral unit, which may provide a rigid and firm structure.
1. A stator fastening arrangement for a flat elevator motor having a motor body—provided with a stator,—comprising:
a rotor—fitted in conjunction with the stator,
the stator—is fitted within a mounting part—fastened to the motor body,
a space provided between the mounting part and the stator—is filled with a thermally conductive filling material for conducting heat away from the stator to the mounting part, and
the filling material is provided on one or more axial, outer circumferential surfaces of the stator and in contact with the mounting part so as to fasten the stator to the mounting part.
2. The fastening arrangement of claim 1, wherein the filling material is embodied as a castable resin material.
3. The fastening arrangement of claim 1,—wherein
the mounting part—is fastened to the motor body—at an outer edge thereof by one or more fastening elements, and
the stator is disposed on an opposite side of the motor body—relative to the rotor.
4. The fastening arrangement of claim 1, wherein the mounting part—is composed of aluminum.
5. The fastening arrangement of claim 1, wherein the mounting part includes cooling fins.
6. The fastening arrangement of claim 1, wherein the electric motor is embodied as a discoid elevator motor.
US10923868 2002-04-17 2004-08-24 Fastening of the stator of a flat elevator motor Active US6956309B2 (en)
FIFI20020740 2002-04-17
FI20020740A FI116789B (en) 2002-04-17 2002-04-17 The flat elevator motor stator mounting
PCT/FI2003/000284 WO2003088448A3 (en) 2002-04-17 2003-04-14 Fastening of the stator of a flat elevator motor
US20050023926A1 true US20050023926A1 (en) 2005-02-03
US6956309B2 true US6956309B2 (en) 2005-10-18
ID=8563783
US10923868 Active US6956309B2 (en) 2002-04-17 2004-08-24 Fastening of the stator of a flat elevator motor
US (1) US6956309B2 (en)
JP (1) JP4673555B2 (en)
KR (1) KR100989352B1 (en)
CN (1) CN100392955C (en)
CA (1) CA2477633C (en)
DE (1) DE60326555D1 (en)
EP (1) EP1495529B1 (en)
ES (1) ES2319754T3 (en)
FI (1) FI116789B (en)
WO (1) WO2003088448A3 (en)
US9800101B2 (en) 2012-09-05 2017-10-24 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
US4689512A (en) 1985-06-06 1987-08-25 Elevator Gmbh Electric motor
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
JP2647745B2 (en) 1993-06-28 1997-08-27 コネ オサケ ユキチュア Elevator machinery and equipment
CN1647345A (en) 2005-07-27 application
FI116789B1 (en) grant
WO2003088448A3 (en) 2004-01-08 application
JP4673555B2 (en) 2011-04-20 grant
CN100392955C (en) 2008-06-04 grant
WO2003088448A2 (en) 2003-10-23 application
JP2005523674A (en) 2005-08-04 application
EP1495529B1 (en) 2009-03-11 grant
US20050023926A1 (en) 2005-02-03 application
FI116789B (en) 2006-02-28 application
CA2477633A1 (en) 2003-10-23 application
EP1495529A2 (en) 2005-01-12 application
CA2477633C (en) 2012-01-03 grant
FI20020740A0 (en) 2002-04-17 application
KR100989352B1 (en) 2010-10-25 grant
DE60326555D1 (en) 2009-04-23 grant
FI20020740D0 (en) grant
ES2319754T3 (en) 2009-05-12 grant
KR20040096651A (en) 2004-11-16 application
FI20020740A (en) 2003-10-18 application
US4399382A (en) 1983-08-16 Electrical machine
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:AULANKO, ESKO;MUSTALAHTI, JORMAL;HUPPUNEN, JUSSI;REEL/FRAME:015726/0817;SIGNING DATES FROM 20040726 TO 20040802
Free format text: RECORD TO CORRECT THE 2ND CONVEYING PARTY'S NAME, PREVIOUSLY RECORDED AT REEL 015726, FRAME 0817.;ASSIGNORS:AULANKO, ESKO;MUSTALAHTI, JORMA;HUPPUNEN, JUSSI;REEL/FRAME:016498/0245;SIGNING DATES FROM 20040726 TO 20040802