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)

Priority Applications (14)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (2)

Family

ID=8563783

Family Applications (1)

Country Status (19)

Families Citing this family (9)

Family Cites Families (13)

• 2002
  • 2002-04-17 FI FI20020740A patent/FI116789B/fi not_active IP Right Cessation
• 2003
  • 2003-04-14 DE DE60326555T patent/DE60326555D1/de not_active Expired - Lifetime
  • 2003-04-14 ES ES03715002T patent/ES2319754T3/es not_active Expired - Lifetime
  • 2003-04-14 EA EA200401003A patent/EA006264B1/ru not_active IP Right Cessation
  • 2003-04-14 BR BR0309286-0A patent/BR0309286A/pt not_active Application Discontinuation
  • 2003-04-14 WO PCT/FI2003/000284 patent/WO2003088448A2/en not_active Ceased
  • 2003-04-14 AT AT03715002T patent/ATE425572T1/de not_active IP Right Cessation
  • 2003-04-14 CN CNB038084732A patent/CN100392955C/zh not_active Expired - Fee Related
  • 2003-04-14 CA CA2477633A patent/CA2477633C/en not_active Expired - Fee Related
  • 2003-04-14 EP EP03715002A patent/EP1495529B1/en not_active Expired - Lifetime
  • 2003-04-14 KR KR1020047013765A patent/KR100989352B1/ko not_active Expired - Fee Related
  • 2003-04-14 JP JP2003585256A patent/JP4673555B2/ja not_active Expired - Fee Related
  • 2003-04-14 MX MXPA04010168A patent/MXPA04010168A/es active IP Right Grant
  • 2003-04-14 UA UA20040807139A patent/UA77755C2/uk unknown
  • 2003-04-14 AU AU2003219206A patent/AU2003219206B2/en not_active Ceased
• 2004
  • 2004-08-24 US US10/923,868 patent/US6956309B2/en not_active Expired - Lifetime
  • 2004-09-02 ZA ZA200407030A patent/ZA200407030B/en unknown
  • 2004-09-27 NO NO20044100A patent/NO330827B1/no not_active IP Right Cessation
  • 2004-10-14 EG EGNA2004000108 patent/EG23596A/xx active

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