GB1360358A - Commutators - Google Patents
CommutatorsInfo
- Publication number
- GB1360358A GB1360358A GB4032772A GB4032772A GB1360358A GB 1360358 A GB1360358 A GB 1360358A GB 4032772 A GB4032772 A GB 4032772A GB 4032772 A GB4032772 A GB 4032772A GB 1360358 A GB1360358 A GB 1360358A
- Authority
- GB
- United Kingdom
- Prior art keywords
- varistor
- segments
- commutator
- bars
- brush
- 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
- 239000000463 material Substances 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 2
- 241000239290 Araneae Species 0.000 abstract 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052797 bismuth Inorganic materials 0.000 abstract 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 abstract 1
- 229910052791 calcium Inorganic materials 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910044991 metal oxide Inorganic materials 0.000 abstract 1
- 150000004706 metal oxides Chemical class 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 239000011787 zinc oxide Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/10—Arrangements of brushes or commutators specially adapted for improving commutation
- H02K13/105—Spark suppressors associated with the commutator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/04—Commutators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/23—Mechanically-actuated centrifugal switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
1360358 Commutators GENERAL ELECTRIC CO 31 Aug 1972 [1 Sept 1971] 40327/72 Heading H2A [Also in Division H1] Sparking at a brush/commutator contact is reduced by placing metal oxide varistor material between adjacent commutator segments, the material providing a low resistance current path at the moment when a brush and segment part contact, but rapidly increasing its resistance as the current level falls. In the embodiment shown in Fig. 2, the commutator comprises conducting film segments 12 on a solid varistor body 10, but in that of Fig. 3 (not shown) the segments are in the form of bars (15) disposed in slots (14). In the embodiment of Fig. 4 (not shown), a hollow varistor body 10 on a spider system (17) is used, whilst in Fig. 5 (not shown) conductive bars (15) and varistor spacer bars (10) are mounted to form a cylinder. In the embodiment of Fig. 8 (not shown), varistor material (26) is placed in parallel with a centrifugal switch (25; see Division H1). The varistor material in all cases is a polycrystalline ceramic, e.g. zinc oxide with the addition of the oxide of bismuth, aluminium, iron, magnesium or calcium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17688571A | 1971-09-01 | 1971-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1360358A true GB1360358A (en) | 1974-07-17 |
Family
ID=22646272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4032772A Expired GB1360358A (en) | 1971-09-01 | 1972-08-31 | Commutators |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2242528A1 (en) |
| FR (1) | FR2212984A5 (en) |
| GB (1) | GB1360358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2221581A (en) * | 1988-08-06 | 1990-02-07 | Delco Prod Overseas | An electric motor armature with r.f. suppressing resistance |
| US9362698B2 (en) | 2012-09-12 | 2016-06-07 | Johnson Electrics S.A. | Brush motor commutator with spark suppression and method for making the same |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0050091A1 (en) * | 1980-10-09 | 1982-04-21 | Siemens Aktiengesellschaft | Winding for electric machines or appliances |
| EP0354643A3 (en) * | 1988-08-06 | 1990-12-05 | Delco Products Overseas Corporation | An armature drive shaft assembly |
| DE102010039433A1 (en) * | 2010-08-18 | 2012-02-23 | BSH Bosch und Siemens Hausgeräte GmbH | Electric machine with a commutator |
-
1972
- 1972-08-30 DE DE2242528A patent/DE2242528A1/en active Pending
- 1972-08-31 GB GB4032772A patent/GB1360358A/en not_active Expired
- 1972-09-01 FR FR7231100A patent/FR2212984A5/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2221581A (en) * | 1988-08-06 | 1990-02-07 | Delco Prod Overseas | An electric motor armature with r.f. suppressing resistance |
| US9362698B2 (en) | 2012-09-12 | 2016-06-07 | Johnson Electrics S.A. | Brush motor commutator with spark suppression and method for making the same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2242528A1 (en) | 1973-03-08 |
| FR2212984A5 (en) | 1974-07-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |