GB1250472A - - Google Patents
Info
- Publication number
- GB1250472A GB1250472A GB1250472DA GB1250472A GB 1250472 A GB1250472 A GB 1250472A GB 1250472D A GB1250472D A GB 1250472DA GB 1250472 A GB1250472 A GB 1250472A
- Authority
- GB
- United Kingdom
- Prior art keywords
- segments
- magnetic
- laminations
- jan
- initially
- 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.)
- Expired
Links
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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
- H02K1/246—Variable reluctance rotors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Induction Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
1,250,472. Core constructions. BROOK MOTORS Ltd. 13 Jan., 1969 [3 Jan., 1968], No. 415/68. Heading H2A. Slotted rotor segments 10, each consisting of a stack of laminations, are secured to a non- magnetic sleeve 12 or shaft by first engaging loosely interlocking dovetail projections and recesses 22, 24 and then casting in the space therebetween non-magnetic material, e.g. aluminium which may extend between the segments and into the slots to form a squirrel cage winding. Initially, the segments are connected by bridging-pieces which may be removed subsequently by machining. Fan blades are east integrally with the die cast material at opposite ends of the rotor and the looseness of the dovetail connections permits the laminations to be rotated relative to each other prior to the casting operation so as to form skewed segments. Fig. 4 shows as modification wherein semi-circular segments 38 are initially interlocked by non. magnetic ties 40 with dovetail connections which straddle shaft 42 or a sleeve.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB41568 | 1968-01-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1250472A true GB1250472A (en) | 1971-10-20 |
Family
ID=9703966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1250472D Expired GB1250472A (en) | 1968-01-03 | 1968-01-03 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1250472A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2227890A (en) * | 1988-12-02 | 1990-08-08 | Johnson Electric Ind Mfg | Rotor usually securing armature of an electric fan |
| EP0504093A1 (en) * | 1991-03-15 | 1992-09-16 | Emerson Electric Co. | Isolated segmental switch reluctance motor |
-
1968
- 1968-01-03 GB GB1250472D patent/GB1250472A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2227890A (en) * | 1988-12-02 | 1990-08-08 | Johnson Electric Ind Mfg | Rotor usually securing armature of an electric fan |
| GB2227890B (en) * | 1988-12-02 | 1993-08-04 | Johnson Electric Ind Mfg | Axially securing an armature stack in an electric motor |
| EP0504093A1 (en) * | 1991-03-15 | 1992-09-16 | Emerson Electric Co. | Isolated segmental switch reluctance motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |