GB1447463A – Electrical machine
– Google Patents
GB1447463A – Electrical machine
– Google Patents
Electrical machine
Info
Publication number
GB1447463A
GB1447463A
GB708074A
GB708074A
GB1447463A
GB 1447463 A
GB1447463 A
GB 1447463A
GB 708074 A
GB708074 A
GB 708074A
GB 708074 A
GB708074 A
GB 708074A
GB 1447463 A
GB1447463 A
GB 1447463A
Authority
GB
United Kingdom
Prior art keywords
winding
plastics material
machine
conductivity
feb
Prior art date
1973-02-16
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.)
Expired
Application number
GB708074A
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.)
Siemens AG
Original Assignee
Siemens AG
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.)
1973-02-16
Filing date
1974-02-15
Publication date
1976-08-25
1974-02-15
Application filed by Siemens AG
filed
Critical
Siemens AG
1976-08-25
Publication of GB1447463A
publication
Critical
patent/GB1447463A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K3/00—Details of windings
H02K3/32—Windings characterised by the shape, form or construction of the insulation
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K3/00—Details of windings
Abstract
1447463 Cooling dynamoelectric machines SIEMENS AG 15 Feb 1974 [16 Feb 1973] 7080/74 Heading H2A In a machine wherein a stator winding 9 is surrounded by an unslotted stator core 8 and has an aperture at one end of sufficient diameter to allow a rotor 1 to be withdrawn therethrough, e.g. for servicing, the winding 9 is provided with thermally insulating material at its inner surface and is embedded in a material which is of greater thermal conductivity than the insulating material. In the high speed permanent magnet D.C. motor shown, the winding 9 is bell shaped and has had plastics material poured about it to make it rigid, and it supports at its inner surface an insulating layer 10, e.g. of asbestos. Thus, owing to the greater conductivity of the plastics material, any heat which is dissipated in the winding 9 tends to transfer radially outwards through the machine towards a cooling duct 7 in the machine casing 6, through which cooling liquid flows. In an alternative arrangement (not illustrated), the layer 10 is omitted and the winding 9 is embedded in plastics material with which has been mixed a substance of high conductivity, e.g. metal powder, the concentration of the conductive substance being greater on the outside of the winding than on the inside. Such a concentration variation may be provided by rotating the winding as the plastics material and the conductive substance are poured thereon, centrifugal effects producing the desired result. The motors may have static electronic commutation (not detailed).
GB708074A
1973-02-16
1974-02-15
Electrical machine
Expired
GB1447463A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE2307800A
DE2307800C3
(en)
1973-02-16
1973-02-16
Brushless DC motor for high speeds
Publications (1)
Publication Number
Publication Date
GB1447463A
true
GB1447463A
(en)
1976-08-25
Family
ID=5872185
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB708074A
Expired
GB1447463A
(en)
1973-02-16
1974-02-15
Electrical machine
Country Status (9)
Country
Link
US
(1)
US3911299A
(en)
JP
(1)
JPS5642219B2
(en)
CH
(1)
CH564274A5
(en)
CS
(1)
CS167861B2
(en)
DE
(1)
DE2307800C3
(en)
FR
(1)
FR2218683B3
(en)
GB
(1)
GB1447463A
(en)
IT
(1)
IT1007282B
(en)
NL
(1)
NL7400787A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0192469A2
(en)
*
1985-02-19
1986-08-27
Dobson Park Industries Plc
Electric motors and power tools
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4843269A
(en)
*
1987-10-01
1989-06-27
Adalet/Scott Fetzer Company
Large air gap motor
JPH01127351U
(en)
*
1988-02-24
1989-08-31
US5731645A
(en)
*
1996-02-05
1998-03-24
Magnetic Bearing Technologies, Inc.
Integrated motor/generator/flywheel utilizing a solid steel rotor
JP2001069727A
(en)
*
1999-08-26
2001-03-16
Honda Motor Co Ltd
Manufacture of slotless stator and rotary electric machine
US7096566B2
(en)
2001-01-09
2006-08-29
Black & Decker Inc.
Method for making an encapsulated coil structure
US6946758B2
(en)
2001-01-09
2005-09-20
Black & Decker Inc.
Dynamoelectric machine having encapsulated coil structure with one or more of phase change additives, insert molded features and insulated pinion
ATE374443T1
(en)
2001-01-09
2007-10-15
Black & Decker Inc
ELECTRIC MOTOR WITH AN ARCHOR COATED WITH A THERMALLY CONDUCTIVE PLASTIC
US20020089240A1
(en)
2001-01-09
2002-07-11
Du Hung T.
Electric motor having armature coated with a thermally conductive plastic
US7814641B2
(en)
2001-01-09
2010-10-19
Black & Decker Inc.
Method of forming a power tool
DE102007029739A1
(en)
*
2007-06-27
2009-01-08
Robert Bosch Gmbh
Stator with insulation for an electric motor and insulation for a stator and power tool
WO2012086227A1
(en)
*
2010-12-22
2012-06-28
株式会社Ihi
Rotator
EP3468007A1
(en)
*
2017-10-04
2019-04-10
Portescap SA
Fat stator coil for electrical motor
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3082337A
(en)
*
1955-09-26
1963-03-19
Parsons C A & Co Ltd
Dynamo-electric machines
GB1247344A
(en)
*
1967-12-05
1971-09-22
Nat Res Dev
Dynamo-electric machines
US3508092A
(en)
*
1968-06-19
1970-04-21
Air Reduction
Heat sink for stator winding of dynamo-electric machine
US3593049A
(en)
*
1969-10-02
1971-07-13
Siemens Ag
Dc midget motor free of commutator and slip rings
US3761752A
(en)
*
1972-05-01
1973-09-25
Int Research & Dev Co Ltd
Dynamoelectric machine winding support
1973
1973-02-16
DE
DE2307800A
patent/DE2307800C3/en
not_active
Expired
1974
1974-01-21
NL
NL7400787A
patent/NL7400787A/xx
unknown
1974-01-28
US
US437229A
patent/US3911299A/en
not_active
Expired – Lifetime
1974-02-08
IT
IT20284/74A
patent/IT1007282B/en
active
1974-02-11
CH
CH182974A
patent/CH564274A5/xx
not_active
IP Right Cessation
1974-02-13
CS
CS1034A
patent/CS167861B2/cs
unknown
1974-02-15
JP
JP1844074A
patent/JPS5642219B2/ja
not_active
Expired
1974-02-15
FR
FR7405253A
patent/FR2218683B3/fr
not_active
Expired
1974-02-15
GB
GB708074A
patent/GB1447463A/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0192469A2
(en)
*
1985-02-19
1986-08-27
Dobson Park Industries Plc
Electric motors and power tools
EP0192469A3
(en)
*
1985-02-19
1987-11-11
Dobson Park Industries Plc
Electric motors and power tools
Also Published As
Publication number
Publication date
CH564274A5
(en)
1975-07-15
JPS49113106A
(en)
1974-10-29
FR2218683B3
(en)
1976-11-26
FR2218683A1
(en)
1974-09-13
DE2307800B2
(en)
1975-03-06
NL7400787A
(en)
1974-08-20
US3911299A
(en)
1975-10-07
DE2307800A1
(en)
1974-08-29
JPS5642219B2
(en)
1981-10-03
DE2307800C3
(en)
1979-08-16
IT1007282B
(en)
1976-10-30
CS167861B2
(en)
1976-05-28
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Legal Events
Date
Code
Title
Description
1977-01-06
PS
Patent sealed [section 19, patents act 1949]
1978-09-20
PCNP
Patent ceased through non-payment of renewal fee
