GB2526253A - Electro motor or generator teeth based cooling system - Google Patents

Electro motor or generator teeth based cooling system Download PDF

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Publication number
GB2526253A
GB2526253A GB1406546.0A GB201406546A GB2526253A GB 2526253 A GB2526253 A GB 2526253A GB 201406546 A GB201406546 A GB 201406546A GB 2526253 A GB2526253 A GB 2526253A
Authority
GB
United Kingdom
Prior art keywords
tooth
stator
generator
teeth
electro motor
Prior art date
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.)
Withdrawn
Application number
GB1406546.0A
Other versions
GB201406546D0 (en
Inventor
Nenad Paunovic
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to GB1406546.0A priority Critical patent/GB2526253A/en
Publication of GB201406546D0 publication Critical patent/GB201406546D0/en
Publication of GB2526253A publication Critical patent/GB2526253A/en
Withdrawn legal-status Critical Current

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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
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • 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
    • 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
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148—Sectional cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/12—Machines characterised by the modularity of some components

Abstract

A stator 1 or rotor 9 of an electric motor or generator with a plurality of wiring teeth 3 wherein the teeth are individually detachable from the stator body to change the power or torque without the need for rewiring the entire stator. The stator teeth support wire coils 7. Each tooth has a plurality of cooling channels to allow cooling fluid to circulate within them, cooling the teeth wires, and increasing efficiency of the generator or motor. Each tooth has at least one horizontal channel 5 and at least one vertical channel 6 which branches from the horizontal channel to the surface of the tooth head 4.

Description

Electro motor or generator teeth based cooling system
Background art
Electro motor/generator could have teeth with wire coils around as part of motor/generator's rotor or stator. These teeth are non-removable from stator and their main function is to support wire coils around them. Because wire in coils is stocked in bundles this can very often lead to overheating of coils and burning out electro motor/generator. In addition to this problem if desired that power of electro motor/generator is to be changed, entire stator or rotor with different number of teeth and different wiring must be put in place. This essentially means building of new electro motor/generator, which is time and resources consuming and expensive.
Statement of invention
To overcome these problems present invention propose removable teeth with cooling channels with cooling channels within them.
These removable teeth could be part of electro motor/generator's rotor or stator, dependably of electro motor/generator nature (brushed or brushless, inner or out runner etc.). In case of these invention explanations will be given on brushless out runner motor/generator which means that teeth are part of stator.
Normally each tooth of stator is actually extrusion of stator body but in this case each tooth can removed and attached to stator body as desired.
On this way power or torque of electro motor/generator can be changed without changing or rewiring entire stator.
In addition each of these teeth could have channels within each of them which makes much better fluid circulation within each tooth and around wiring which much more efficiency remove heat from wiring coils. As a consequence electro motor/generator's efficiency is improved and much thinner wires can be used for the same power electro motor/generator which also affect efficiency increase as well as mass reduction.
In this case each of the removable cooler tooth consists of tooth base, tooth, tooth head and horizontal and vertical cooling channels. Horizontal and vertical channels are connected.
This channels, with cooling function, could also be part of stator teeth when they are not separated from stator body like separated parts but unified with it (when they are just segment of same part i.e. stator).
Introduction to drawings
Figure 1 present axonometric view of brushless electro motor or generator with removable teeth with cooling channels.
Figure 2 present axonometric view of brushless electro motor or generator with some of the removable teeth with cooling channels removed.
Figure 3 present axonometric view of stator body with removable teeth with cooling channels.
Figure 4 present front view of stator body with removable teeth with cooling channels.
Figure 5 present cross section view of stator body with removable teeth with cooling channels.
Figure 6 present front view of removable tooth with cooling channels.
Figure 7 present cross section of removable tooth with cooling channels.
Figure 8 present axonometric view of removable tooth with cooling channels.
Figure 9 present axonometric view of stator body.
Detail description
Teeth with teeth heads regardless are they part of stators or rotors have structural function in supporting coils of wiring.
In case of this invention each tooth have horizontal channels 5 as well as vertical channels 6 (of course these channels do not have to be only horizontal or vertical, they could be positioned on variety of different positions and angles.). In this case horizontal channel 5 is positioned in each tooth 3 base 2 and horizontal channels 6 branch from channel S until they reach top surface of head 4 of each tooth 3. when fluid circulate through this channels 5,6, it remove the coil 7 transferred heat from the tooth 3, tooth base 2 and tooth hade 4 thus cooling the coils. In the same time rotation of rotor 9 with magnets 8 by means of surface (or boundary) layer effect also affect fluid circulation trough channels 5,6 and thus also adding to coil cooling.
As a consequence electro motor/generator's efficiency is improved and much thinner wires can be used for the same power electro motor/generator which also affect efficiency increase as well as mass reduction.
These rotor or stator teeth with cooling channels 5,6 could also be removable.
These removable teeth could be part of electro motor/generator's rotor or stator, dependably of electro motor/generator nature (brushed or brushless, inner or out runner etc.). In case of these inventions explanations will be given on brushless out runner motor/generator which means that teeth are part of stator.
Normally each tooth of stator is actually extrusion of stator body but in this case each tooth 3 can be removed and attached to stator body las desired.
On this way power or torque of electro motor/generator can be changed without changing or rewiring entire stator or rotor in cases where wiring is also on rotor.
In this case each of the removable cooler tooth consists of tooth base 2, toothS, tooth had 4 and horizontal 5 and vertical 6 cooling channels. Horizontal channel(s) 5 and vertical channel(s) 6 are connected.

Claims (3)

  1. Claims 1. An Electro motor or electro generator rotor or stator with at least one wiring tooth comprising cooling channels.
  2. 2. An Electro motor or electro generator according to claim 1 with at least one channel spreading along at least one tooth lengthwise and with at least one channel branching from it to reach tooth head top surface.
  3. 3. An Electro motor or electro generator according to claim 1 and 2, where at least one tooth is detachable from its stator or rotor base.
GB1406546.0A 2014-04-11 2014-04-11 Electro motor or generator teeth based cooling system Withdrawn GB2526253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1406546.0A GB2526253A (en) 2014-04-11 2014-04-11 Electro motor or generator teeth based cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1406546.0A GB2526253A (en) 2014-04-11 2014-04-11 Electro motor or generator teeth based cooling system

Publications (2)

Publication Number Publication Date
GB201406546D0 GB201406546D0 (en) 2014-05-28
GB2526253A true GB2526253A (en) 2015-11-25

Family

ID=50844864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1406546.0A Withdrawn GB2526253A (en) 2014-04-11 2014-04-11 Electro motor or generator teeth based cooling system

Country Status (1)

Country Link
GB (1) GB2526253A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017199032A1 (en) * 2016-05-19 2017-11-23 Arm Ltd Method and apparatus for maintenance of electric motor
US10965192B2 (en) 2019-04-12 2021-03-30 Caterpillar Inc. Cooling system for a rotary electric machine
US11002289B2 (en) 2018-08-28 2021-05-11 Caterpillar Inc. Cooling system for a rotary electric machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2345810A1 (en) * 1973-09-11 1975-03-20 Kraftwerk Union Ag Gas-cooling channel system for turbo generators stator teeth - has radial-axial cooling slots connected to radial-tangential slots
EP0155405A1 (en) * 1984-03-21 1985-09-25 Siemens Aktiengesellschaft Device for indirect gas cooling of stator windings and/or for the direct gas cooling of stator laminated magnetic cores of a dynamo-electric machine, particularly for gas-cooled turbogenerators
WO2009100523A1 (en) * 2008-02-11 2009-08-20 Tm4 Inc. Stator assembly for electric machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2345810A1 (en) * 1973-09-11 1975-03-20 Kraftwerk Union Ag Gas-cooling channel system for turbo generators stator teeth - has radial-axial cooling slots connected to radial-tangential slots
EP0155405A1 (en) * 1984-03-21 1985-09-25 Siemens Aktiengesellschaft Device for indirect gas cooling of stator windings and/or for the direct gas cooling of stator laminated magnetic cores of a dynamo-electric machine, particularly for gas-cooled turbogenerators
WO2009100523A1 (en) * 2008-02-11 2009-08-20 Tm4 Inc. Stator assembly for electric machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017199032A1 (en) * 2016-05-19 2017-11-23 Arm Ltd Method and apparatus for maintenance of electric motor
US10516322B2 (en) 2016-05-19 2019-12-24 Arm Ltd. Method and apparatus for maintenance of electric motor
US11128204B2 (en) 2016-05-19 2021-09-21 Arm Limited Method for manufacture of electric motor
US11002289B2 (en) 2018-08-28 2021-05-11 Caterpillar Inc. Cooling system for a rotary electric machine
US10965192B2 (en) 2019-04-12 2021-03-30 Caterpillar Inc. Cooling system for a rotary electric machine

Also Published As

Publication number Publication date
GB201406546D0 (en) 2014-05-28

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)