CN2722475Y - Low-noise commutator - Google Patents
Low-noise commutator Download PDFInfo
- Publication number
- CN2722475Y CN2722475Y CN 200420037127 CN200420037127U CN2722475Y CN 2722475 Y CN2722475 Y CN 2722475Y CN 200420037127 CN200420037127 CN 200420037127 CN 200420037127 U CN200420037127 U CN 200420037127U CN 2722475 Y CN2722475 Y CN 2722475Y
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- commutator
- noise
- commutation
- skewed slot
- low
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Abstract
The utility model relates to a low-noise commutator, comprising a base body which is pressed and poured integrally, a plurality of commutator segments and wire connecting elements at the surface of the commutator. The working surface of the commutator segment is provided with a commutator chute which can be a left rotatable chute or a right rotatable chute, and the commutator chute can form an advance angle with the central axis of the commutator. The design solves the problem of the commutator advance angle existing for a long time to improve the commutation ability of the electrical machine with a brush and reduce the mechanical noise, the spark noise and the interference noise of the electromagnetic wave simultaneously to make the application of the electrical machine with a brush wide, make the performance better and make the service life long.
Description
Technical field
The utility model relates to electric current commutation element---commutator, the especially Low-noise commutator in brush direct current motor and the series excited machine.
Background technology
All brush direct current motors and series excited machine, for solving electric current commutation problem, commutator all is installed, be processed with the commutation groove on the commutator segment of commutator, but this commutation groove is a straight trough, parallel with central axis, can't resolve commutation advance angle problem, make motor cause machinery noise, electric spark noise, Electromagnetic Interference noise when electric current commutates, removing this also influences the motor commutation performance, has restricted the scope of application even.For solving this technical problem, present unique method is externally to solve the advance angle problem, but this is pretty troublesome on technology, and can't resolve the optkmal characteristics of way traffic.The disclosed technical scheme of Chinese patent 95105822.3 " noise suppressed commutator " is that silencer element is set on commutator.Be assembled on the commutator though this silencer element need not heat with regard to available reliably and easily mode, this embodiment must increase cost unexpectedly, is confined to the fine motion rate and uses, and still keeps away unavoidable machinery noise.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of prior art and provides a kind of and make motor can have best commutation advance angle to cooperate and be operated on the best operating point, reduce machinery noise, electric spark noise, the Electromagnetic Interference noise of motor commutation process, and improve the machine operation performance.
At goal of the invention of the present utility model, its embodiment is:
A kind of Low-noise commutator, it comprises the commutator matrix and the multi-disc commutator segment of pressure injection one, and the wire connector of commutator face, is processed with the commutation groove on the commutator segment working face, it is characterized in that described commutation groove is a skewed slot, form a commutation advance angle α with the commutator central axis.
Described commutation skewed slot can be left-handed skewed slot or dextrorotation skewed slot.
The commutation advance angle α of described commutation skewed slot and commutator central axis is 0.5 °～20 °.
The groove width of described commutation skewed slot is 0.2～3 millimeter, and groove depth is 0.5～10 millimeter.
Described wire connector can be hook stitch or line embedding groove.
Compared with prior art, commutator segment of the present utility model is processed with the commutation skewed slot on its working face, form a commutation advance angle with the commutator central axis, owing to solved commutation advance angle problem, thereby improved the commutation ability of brush motor greatly, it is operated on the best operating point, the machinery noise when reducing to commutate, electric spark noise and Electromagnetic Interference noise, make the use of brush motor more extensive, performance is better, the life-span is longer.
Description of drawings
Fig. 1 is the utility model scheme 1 contour structures schematic diagram (buckle stitch).
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the utility model scheme 2 contour structures schematic diagrames (buckle stitch).
Fig. 4 is the utility model scheme 3 contour structures schematic diagrames (band line embedding groove).
Fig. 5 is the B-B cutaway view of Fig. 4.
Fig. 6 is the utility model scheme 4 contour structures schematic diagrames (band line embedding groove).
Embodiment
Below with reference to above-mentioned accompanying drawing embodiment the utility model is described in detail again.
Low-noise commutator is by the commutator matrix 4 and the multi-disc commutator segment 2 of pressure injection one, and the wire connector of commutator face is formed, commutator matrix 4 is a material with insulating material such as epoxy resin, with at least 3 be the commutator segment 2 pressure injection one of material with the yellow gold, the quantity of commutator segment is decided according to designing requirement, be processed with commutation skewed slot 3 on the commutator segment working face, this skewed slot and commutator central axis form a commutation advance angle α.
Fig. 1-2 is the commutator structure of scheme 1, the wire connector that commutator is provided with is a hook stitch 1, be used for butting conductive paint envelope curve, the commutation skewed slot 3 of commutator segment working surface is left-handed skewed slot, commutation advance angle α selects different angles according to the commutator segment and the different rotating speeds of varying number, to reach best advance angle.
Fig. 3 is the commutator structure of scheme 2, and concrete structure is identical with scheme 1, but commutation skewed slot 3 is the dextrorotation skewed slot.
Fig. 4-5 is the commutator structure of scheme 3, the wire connector that commutator is provided with is a line embedding groove 5, be used to rabbet spot welding conductive paint envelope curve, the commutation skewed slot 3 of commutator segment working surface is left-handed skewed slot, and commutation advance angle, skewed slot selection wide, groove depth is identical with scheme 1.
Fig. 6 is the commutator structure of scheme 4, and is identical with the commutator structure of scheme 3, and commutation skewed slot 3 is the dextrorotation skewed slot, and all the other are identical with scheme 1.
The groove width of the utility model commutation skewed slot 3 is decided according to different rotating speeds, different-diameter, different carbon brush width; And groove depth is pressed commutator segment thickness and decide, and equates with commutator segment thickness.
Claims (6)
1, a kind of Low-noise commutator, it comprises the commutator matrix (4) and the multi-disc commutator segment (2) of pressure injection one, and the wire connector of commutator face, be processed with the commutation groove on the commutator segment working face, it is characterized in that described commutation groove is skewed slot (3), form a commutation advance angle α with the commutator central axis.
2, Low-noise commutator according to claim 1 is characterized in that described commutation skewed slot (3) can be left-handed skewed slot or dextrorotation skewed slot.
3, Low-noise commutator according to claim 1 and 2 is characterized in that the described commutation skewed slot (3) and the commutation advance angle α of commutator central axis are 0.5 °～20 °.
4, Low-noise commutator according to claim 1 and 2, the groove width that it is characterized in that described commutation skewed slot (3) is 0.2～3 millimeter, groove depth is 0.5～10 millimeter.
5, Low-noise commutator according to claim 3, the groove width that it is characterized in that described commutation skewed slot (3) is 0.2～3 millimeter, groove depth is 0.5～10 millimeter.
6, Low-noise commutator according to claim 1 and 2 is characterized in that described wire connector can be hook stitch (1) or line embedding groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037127 CN2722475Y (en) | 2004-06-29 | 2004-06-29 | Low-noise commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037127 CN2722475Y (en) | 2004-06-29 | 2004-06-29 | Low-noise commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2722475Y true CN2722475Y (en) | 2005-08-31 |
Family
ID=35012845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420037127 Expired - Fee Related CN2722475Y (en) | 2004-06-29 | 2004-06-29 | Low-noise commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2722475Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336619A (en) * | 2018-01-24 | 2018-07-27 | 张兼鸣 | Reinforced commutator |
| CN108365490A (en) * | 2018-01-24 | 2018-08-03 | 潘舒晗 | A kind of Hooked reverser |
| CN108365489A (en) * | 2018-01-24 | 2018-08-03 | 陈杨 | Hooked reverser |
| CN108365488A (en) * | 2018-01-24 | 2018-08-03 | 杨紫妍 | Engine commutator |
-
2004
- 2004-06-29 CN CN 200420037127 patent/CN2722475Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336619A (en) * | 2018-01-24 | 2018-07-27 | 张兼鸣 | Reinforced commutator |
| CN108365490A (en) * | 2018-01-24 | 2018-08-03 | 潘舒晗 | A kind of Hooked reverser |
| CN108365489A (en) * | 2018-01-24 | 2018-08-03 | 陈杨 | Hooked reverser |
| CN108365488A (en) * | 2018-01-24 | 2018-08-03 | 杨紫妍 | Engine commutator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050831 Termination date: 20100629 |