WO1998059411A1 - Spherical, direct current, cage rotor electric motor - Google Patents
Spherical, direct current, cage rotor electric motor Download PDFInfo
- Publication number
- WO1998059411A1 WO1998059411A1 PCT/HU1998/000058 HU9800058W WO9859411A1 WO 1998059411 A1 WO1998059411 A1 WO 1998059411A1 HU 9800058 W HU9800058 W HU 9800058W WO 9859411 A1 WO9859411 A1 WO 9859411A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spherical
- tubular shaft
- rotor
- stator
- splined tubular
- Prior art date
Links
- 230000005291 magnetic effect Effects 0.000 claims abstract description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 230000004907 flux Effects 0.000 claims abstract description 5
- 239000004033 plastic Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052753 mercury Inorganic materials 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 208000004221 Multiple Trauma Diseases 0.000 description 1
- 241000555745 Sciuridae Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- HOQADATXFBOEGG-UHFFFAOYSA-N isofenphos Chemical group CCOP(=S)(NC(C)C)OC1=CC=CC=C1C(=O)OC(C)C HOQADATXFBOEGG-UHFFFAOYSA-N 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000005293 physical law Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
- H02K23/56—Motors or generators having iron cores separated from armature winding
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
Definitions
- the subject of the invention is a spherical, direct current, cage rotor electric motor.
- a very wide scale of direct current electric motors is known.
- the direct current electric motors of the electric motor driven vehicles constitute one large group of them.
- the US-PS No. 4 948 998 describes a twin-commutator, highly reliable direct current electric motor, provided with two independent, parallel windings, arranged in the rotor core. Through the bush systems located on both sides of the motor and through the commutator, the windings can be used separately or together.
- the rotor is cylindrical, non-self carrying and the stator contains field windings.
- the field magnets of the direct current electric motor with cylindrical, ironless, self-carrying rotor according to the solution of US-PS No. 4 1 10 645 are located outside of the rotor, while the flux conducting yoke is located within the rotor.
- a cylindrical, direct current, electric motor is described also in HU-PS No. 189 040, where the rotor of the implementation according to Fig. 2 thereof is a disk shaped wire coil, with significant parasite coil-head wire lengths and masses.
- the double rotor and the commutators on the rotors of the solution according to Fig. 3 thereof are also disk shaped and made of printed circuits, while the bushes are directed radially.
- a solution for the optimal design of the exciting circuit is the use of high energy, double-sided permanent magnets, preferably made of alloys, the magnetic line of force of which is radial over a relatively large angular range, a direct consequence of which is that the (B) induction lines are perpendicular to the direction of the current (I), and further, to the generated force (F).
- the second question i.e. the design of the rotor is a more complex problem.
- a meaningful increase of efficiency can only be achieved by reducing the amount of energy transformed into heat according to the I R power formula. It can be regarded solved by using a spherical shell shaped rotor, made of copper profiles of relatively large cross section and strength which, at the same time, is suitable for transmitting torque.
- the objective of the invention was achieved by designing a spherical, direct current, cage rotor electric motor, the stator of which is composed of an inner part, made of a spherical, hollow, flux conducting, soft magnetic yoke, and a surrounding outer part of spherical shell shape, consisting of segmental parts or cast over the inner part, and made of permanent magnet, the output axle is a splined tubular shaft, protruding through the hole of the inner part.
- the cage rotor is a spherical surface of revolution surrounding and enclosing the ferromagnetic stator of sandwich structure angular- symmetrically, which is composed of copper profiles, arched along the planes parallel to the geometric axis of the splined tubular shaft, the insulated hub-parts of which are fixed to the splined tubular shaft by means of screw type clamping bushes, the ends of the copper profiles are machined into planes perpendicular to the geometric axis of the splined tubular shaft, and which form disk shape commutators, to the commutators bushes, preferably made of bronze-graphite or mercury, are resiliently coupled, whose terminals are formed as plug- socket holders or clamping screws.
- the inner part of the stator can be of meridian lattice structure.
- the caged rotor can have a form different from spherical, e.g. ellipsoid of rotation, eventually a discus form, nevertheless, it must be a body of rotation.
- the equatorial of the cage rotor has the shape of a torus, and it is provided with a fiber glass reinforced heat resistant plastic stiffener ring, which is concentrically surrounded by segmented permanent magnetic main poles, which in turn are surrounded by the shell structure of soft magnetic yokes made of two hemispherical-like parts that are pressed to one another at their edges, which in turn are surrounded by a light metal alloy, for example aluminum, hollow casing containing openings, and between the stator and the splined tubular shaft, and between the casing and the splined tubular shaft bearings, preferably roller bearings, and sealing elements are arranged.
- a light metal alloy for example aluminum
- the casing can be made of two hemispherical parts provided with ventilating openings, and they can be fixed together by, for example, bolts, however, a spherical plastic net or lattice work of appropriate strength can also be used.
- air-outlet channels having a tangential outlet end sections are formed in the permanent magnetic main poles, in the soft magnetic yoke shell structure, as well as in the casing parts. Tangential baffles are arranged at the outlet part of said end section.
- the motor thus has a splined tubular shaft 1 , which has, at its larger diameter middle section, a stator, which comprises a spherical, hollow inner part 2 made of a flux conducting soft magnetic yoke, and a permanent magnetic outer part 3 surrounding said inner part 2, which consists of segmental parts or which is cast onto the inner part 2.
- a stator which comprises a spherical, hollow inner part 2 made of a flux conducting soft magnetic yoke, and a permanent magnetic outer part 3 surrounding said inner part 2, which consists of segmental parts or which is cast onto the inner part 2.
- the stator is surrounded by an angular- symmetric, spherical shell surface of revolution shaped cage rotor 6, which is made of copper profiles, preferably profiled plates or rods, that are arched in planes parallel to the geometric axis 13 of the splined tubular shaft 1, the ends of the profiles constitute, at the splined tubular shaft 1 , the commutators 10A, 10B, ... of disk segment shape, which are machined into a plane perpendicular to the geometric axis 13 of the splined tubular shaft 1.
- the caged rotor 6 is strengthened by a ring 7 made of insulating material, preferably fiber glass reinforced heat resistant plastic, which is press molded - by forming air channel(s) therein simultaneously - onto the cage rotor 6, already mounted on the stator.
- the cage rotor 6 is surrounded by permanent magnetic main poles 8 shaped as spherical shell segments, bordered by planes parallel to the geometric axis 13 of the splined tubular shaft 1, the permanent magnetic main poles 8 in turn are surrounded, also in the shape of a spherical shell, by the shell structure of soft magnetic yokes 9, split along the biggest diameter ('equator').
- the direction of the developing magnetic field in the space between the permanent magnetic main poles 8 of the assembled motor is radial.
- the outer part of the spherical, direct current, cage rotor electric motor is composed of by the casing parts 12A and 12B, which, too, are spherical, fixed together by bolts at their biggest diameter, provided with gill-openings and preferably are webbed on their outside, and made of light metal alloy, for example aluminum.
- a spherical plastic web or lattice work can also be used.
- roller bearings 16A and 16B and bearing boxes 18A, 18B are arranged between the hollow inner part 2 and outer part 3 of the stator and the splined tubular shaft 1 .
- roller bearings 16A and 16B and bearing boxes 18A, 18B are arranged between the casing parts 12A, 12B and the splined tubular shaft 1 roller bearings 17A, 17B and sealing elements 19A, 19B.
- large openings are formed.
- the bores of the bearing boxes 18 A, 18B connect the openings 15 with the space of the cage rotor 6.
- compressed air which coming from one (or both) end(s) of the splined tubular shaft 1 , traveling within it, enters the interior of the motor by passing through the openings 15 of the splined tubular shaft 1 in the range of its geometric center, as well as through the smaller openings 20A, 20B, provided in the splined tubular shaft 1 at the planes of the commutators 10A, 10B, then it leaves the motor through the bores of the bearing boxes 18A, 18B and through the (not shown) gill-openings of the casing parts 12A, 12B.
- the moment of inertia of the self-carrying 6 cage rotor is small and, further, there is no wattless component arising from the coil-heads, therefore the motor is especially suitable for fast (for example servo) drives;
- the ironless caged rotor also acts as a centrifugal blower or turbine of double-side inlet, provided with meridian baffles;
- the splined tubular shaft makes it possible to use the motor as a single-flow propeller turbine, for example in case of sport aircraft.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL98337718A PL337718A1 (en) | 1997-06-23 | 1998-06-12 | Spherical dc motor with a squirrel-cage rotor |
BR9810332-6A BR9810332A (pt) | 1997-06-23 | 1998-06-12 | Motor elétrico de rotor em curto-circuito isento de ferro, de corrente contìnua, esférico |
KR19997012171A KR20010014115A (ko) | 1997-06-23 | 1998-06-12 | 구형의 직류 케이지 회전 전기 모터 |
CA002294161A CA2294161A1 (en) | 1997-06-23 | 1998-06-12 | Spherical, direct current, cage rotor electric motor |
AU77836/98A AU7783698A (en) | 1997-06-23 | 1998-06-12 | Spherical, direct current, cage rotor electric motor |
JP50401899A JP2002516060A (ja) | 1997-06-23 | 1998-06-12 | 球形・直流・かご型ロータ電動機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU9701088A HU222458B1 (hu) | 1997-06-23 | 1997-06-23 | Gömbalakú, egyenáramú, kalickás forgórészű villamos motor |
HUP9701088 | 1997-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998059411A1 true WO1998059411A1 (en) | 1998-12-30 |
Family
ID=89995277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/HU1998/000058 WO1998059411A1 (en) | 1997-06-23 | 1998-06-12 | Spherical, direct current, cage rotor electric motor |
Country Status (9)
Country | Link |
---|---|
JP (1) | JP2002516060A (hu) |
KR (1) | KR20010014115A (hu) |
CN (1) | CN1268259A (hu) |
AU (1) | AU7783698A (hu) |
BR (1) | BR9810332A (hu) |
CA (1) | CA2294161A1 (hu) |
HU (1) | HU222458B1 (hu) |
PL (1) | PL337718A1 (hu) |
WO (1) | WO1998059411A1 (hu) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020077316A (ko) * | 2002-09-11 | 2002-10-11 | 김인구 | 전동기의 구조변화로 인한 효율증대 장치 및 방법 |
US20130129476A1 (en) * | 2010-07-01 | 2013-05-23 | Be-Kking Management B.V. | Rotary machine for compression and decompression |
CN108922299A (zh) * | 2018-07-24 | 2018-11-30 | 李慧 | 一种消防演习虚拟训练的方法 |
WO2022056637A1 (en) * | 2020-09-16 | 2022-03-24 | National Research Council Of Canada | Electric machines with enhanced electromagnetic interaction |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101505076B (zh) * | 2009-03-11 | 2010-12-01 | 哈尔滨工程大学 | 水下球形电机推进器 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH102118A (fr) * | 1922-08-22 | 1923-11-16 | Brooks Sayers William | Machine dynamo-électrique. |
FR1382813A (fr) * | 1964-02-20 | 1964-12-18 | Circuit Res Company | Convertisseur électro-mécanique d'énergie |
US3312846A (en) * | 1962-09-11 | 1967-04-04 | Printed Motors Inc | Electric rotating machines |
FR2281850A1 (fr) * | 1974-08-12 | 1976-03-12 | British Railways Board | Transmission pour vehicules mus par des moteurs electriques |
JPS58179153A (ja) * | 1982-04-09 | 1983-10-20 | Entatsuku Kk | 電動機用線輪及びその製造方法 |
EP0481774A2 (en) * | 1990-10-19 | 1992-04-22 | Tai-Her Yang | Two ends bidirectional conduction non-closing armature windings for DC motor |
US5204570A (en) * | 1991-09-09 | 1993-04-20 | Gerfast Sten R | Spheroidal machine |
EP0608424A1 (en) * | 1991-10-14 | 1994-08-03 | TAKARA, Muneaki | Rotary electric machine |
-
1997
- 1997-06-23 HU HU9701088A patent/HU222458B1/hu not_active IP Right Cessation
-
1998
- 1998-06-12 PL PL98337718A patent/PL337718A1/xx unknown
- 1998-06-12 WO PCT/HU1998/000058 patent/WO1998059411A1/en not_active Application Discontinuation
- 1998-06-12 JP JP50401899A patent/JP2002516060A/ja active Pending
- 1998-06-12 KR KR19997012171A patent/KR20010014115A/ko not_active Application Discontinuation
- 1998-06-12 CN CN98808457A patent/CN1268259A/zh active Pending
- 1998-06-12 CA CA002294161A patent/CA2294161A1/en not_active Abandoned
- 1998-06-12 AU AU77836/98A patent/AU7783698A/en not_active Abandoned
- 1998-06-12 BR BR9810332-6A patent/BR9810332A/pt not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH102118A (fr) * | 1922-08-22 | 1923-11-16 | Brooks Sayers William | Machine dynamo-électrique. |
US3312846A (en) * | 1962-09-11 | 1967-04-04 | Printed Motors Inc | Electric rotating machines |
FR1382813A (fr) * | 1964-02-20 | 1964-12-18 | Circuit Res Company | Convertisseur électro-mécanique d'énergie |
FR2281850A1 (fr) * | 1974-08-12 | 1976-03-12 | British Railways Board | Transmission pour vehicules mus par des moteurs electriques |
JPS58179153A (ja) * | 1982-04-09 | 1983-10-20 | Entatsuku Kk | 電動機用線輪及びその製造方法 |
EP0481774A2 (en) * | 1990-10-19 | 1992-04-22 | Tai-Her Yang | Two ends bidirectional conduction non-closing armature windings for DC motor |
US5204570A (en) * | 1991-09-09 | 1993-04-20 | Gerfast Sten R | Spheroidal machine |
EP0608424A1 (en) * | 1991-10-14 | 1994-08-03 | TAKARA, Muneaki | Rotary electric machine |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 017 (E - 223) 25 January 1984 (1984-01-25) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020077316A (ko) * | 2002-09-11 | 2002-10-11 | 김인구 | 전동기의 구조변화로 인한 효율증대 장치 및 방법 |
US20130129476A1 (en) * | 2010-07-01 | 2013-05-23 | Be-Kking Management B.V. | Rotary machine for compression and decompression |
US9074602B2 (en) * | 2010-07-01 | 2015-07-07 | Be-Kking Management B.V. | Rotary machine for compression and decompression |
US9784108B2 (en) | 2010-07-01 | 2017-10-10 | Be-Kking Management B.V. | Rotary machine for compression and decompression |
CN108922299A (zh) * | 2018-07-24 | 2018-11-30 | 李慧 | 一种消防演习虚拟训练的方法 |
WO2022056637A1 (en) * | 2020-09-16 | 2022-03-24 | National Research Council Of Canada | Electric machines with enhanced electromagnetic interaction |
Also Published As
Publication number | Publication date |
---|---|
HU222458B1 (hu) | 2003-07-28 |
HUP9701088A3 (en) | 2000-03-28 |
BR9810332A (pt) | 2000-09-05 |
JP2002516060A (ja) | 2002-05-28 |
CN1268259A (zh) | 2000-09-27 |
PL337718A1 (en) | 2000-08-28 |
CA2294161A1 (en) | 1998-12-30 |
AU7783698A (en) | 1999-01-04 |
HUP9701088A2 (hu) | 1999-02-01 |
KR20010014115A (ko) | 2001-02-26 |
HU9701088D0 (en) | 1998-01-28 |
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