CN2427906Y - Inner hole structure of commutator - Google Patents
Inner hole structure of commutator Download PDFInfo
- Publication number
- CN2427906Y CN2427906Y CN 00207468 CN00207468U CN2427906Y CN 2427906 Y CN2427906 Y CN 2427906Y CN 00207468 CN00207468 CN 00207468 CN 00207468 U CN00207468 U CN 00207468U CN 2427906 Y CN2427906 Y CN 2427906Y
- Authority
- CN
- China
- Prior art keywords
- commutator
- inner hole
- utility
- groove
- model
- 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 - Fee Related
Links
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model relates to an improvement of an inner hole structure of a commutator used for motors. The utility model is characterized in that an inner hole wall is provided with a groove; when the commutator is pressed and arranged on a rotor shaft, interference of press fit can reduce outward expansion force produced by the inner hole of the commutator because the groove has a shunting action. Thus the assembly quality can increased, and the integral strength of the commutator can be ensured.
Description
The utility model relates to the improvement invention of the commutator inner hole structure that uses on the motor.
The hole wall of commutator endoporus is smooth round in the prior art, use because of commutator is fitted on the rotor axis of electric, because the existence of matching allowance can produce bigger tension, influence the mechanical strength of commutator when press-fiting, even the generation slight crack, make unstable product quality.
In view of the problem that prior art exists, the purpose of this utility model aims to provide a kind of new inner hole structure to improve assembly quality, reduces waster.
The utility model is finished as follows, includes the commutator body, as has lining and then comprise lining, and its principal character is that the hole wall of commutator endoporus is provided with groove, and the visual actual specification conditions of the quantity of groove and geomery is determined.
The utility model is compared with known technology, because of the hole wall of endoporus is provided with groove, when commutator is contained on the armature spindle, press-fit the magnitude of interference of cooperation because groove has played shunting action, reduced the outside tension that the commutator endoporus produces, thereby improved assembly quality, but also the dimensional accuracy that can suitably reduce endoporus is to reduce production costs.
The utility model has following accompanying drawing:
Fig. 1 is the cross sectional representation of the utility model commutator embodiment.1-lining among the figure, 2-mica sheet, 3-commutator segment, 4-inserts, 5-groove.
Accompanying drawing has been represented embodiment of the present utility model and structure thereof.
Further describe each relevant details of embodiment below more in conjunction with the accompanying drawings, after part is processed into whole commutator in addition each commutator, present embodiment is that groove is processed into straight trough shape, its cross section as shown in Figure 1, produce special-purpose push broach earlier by flute profile, endoporus processes groove with special-purpose push broach, just finishes the theme of the utility model design.
Claims (1)
1, a kind of structure of commutator endoporus includes the commutator body, as has lining and then comprise lining, it is characterized in that the hole wall of endoporus is provided with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00207468 CN2427906Y (en) | 2000-03-30 | 2000-03-30 | Inner hole structure of commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00207468 CN2427906Y (en) | 2000-03-30 | 2000-03-30 | Inner hole structure of commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2427906Y true CN2427906Y (en) | 2001-04-25 |
Family
ID=33575123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00207468 Expired - Fee Related CN2427906Y (en) | 2000-03-30 | 2000-03-30 | Inner hole structure of commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2427906Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255407A (en) * | 2011-06-22 | 2011-11-23 | 北京佩特来电器有限公司 | Armature, starting motor and method for manufacturing armature |
| CN105375226A (en) * | 2015-11-20 | 2016-03-02 | 华瑞电器股份有限公司 | Improved commutator |
| CN105375224A (en) * | 2015-11-19 | 2016-03-02 | 华瑞电器股份有限公司 | Multi-groove commutator |
-
2000
- 2000-03-30 CN CN 00207468 patent/CN2427906Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255407A (en) * | 2011-06-22 | 2011-11-23 | 北京佩特来电器有限公司 | Armature, starting motor and method for manufacturing armature |
| CN105375224A (en) * | 2015-11-19 | 2016-03-02 | 华瑞电器股份有限公司 | Multi-groove commutator |
| CN105375226A (en) * | 2015-11-20 | 2016-03-02 | 华瑞电器股份有限公司 | Improved commutator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |