CN203707535U - Commutator - Google Patents
Commutator Download PDFInfo
- Publication number
- CN203707535U CN203707535U CN201320773689.2U CN201320773689U CN203707535U CN 203707535 U CN203707535 U CN 203707535U CN 201320773689 U CN201320773689 U CN 201320773689U CN 203707535 U CN203707535 U CN 203707535U
- Authority
- CN
- China
- Prior art keywords
- commutator
- lining
- commutator segment
- mica sheet
- bush
- 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
Abstract
The utility model relates to the technical field of a motor and specifically relates to a commutator. The commutator comprises commutator segments, a bush, a molding compound and mica sheets; the commutator is combined together with the bush through the molding compound; and the mica sheets are disposed between the commutator segments. The commutator is characterized in that a foot part of each commutator segment has a centrosymmetric arch-bridge type structure, the commutator segments are made of a silver-copper alloy material, a surface of the bush is provided with lines, and a long edge of each mica sheet is provided with two forked tails which are respectively near two short edges. Through adoption of the scheme, the commutator segments can be effectively prevented from jumping and flying out, and the bush is prevented from self-rotation, so quality of the commutator is improved, and the service life of the commutator is also improved.
Description
Technical field
The utility model relates to technical field of motors, is specifically related to a kind of commutator.
Background technology
On commutator, generally commutator segment, mica, lining and moulding compound form again, between commutator and lining, add the moulding compound of thawing, after moulding compound solidifies, just commutator segment and moulding compound and lining are combined, in the time that motor runs up, commutator easily produces film dancing, and film flying phenomenon causes electric spark grade to strengthen, and the bonding insecure lining autobiography that causes between lining and commutator, commutator ftractures, thereby affects the quality of commutator, reduces the useful life of commutator.
Utility model content
For the problems referred to above, the utility model provides a kind of commutator, because commutator segment foot has the arch bridge structure being centrosymmetric, increased the contact area of commutator segment and moulding compound, and sleeve surface is provided with lines, increases friction and make bonding more firm between lining and commutator, not only effectively prevent the phenomenon of commutator segment film dancing and film flying, and while effectively preventing that motor from running up, because lining autobiography causes commutator problem of Cracking, thereby strengthen the useful life of commutator.
Realize the technical solution of the utility model
Commutator, comprise commutator segment, lining, moulding compound and mica sheet, described commutator combines by moulding compound and lining, between described commutator segment, be provided with mica sheet, the foot of described commutator segment has the arch bridge-type structure being centrosymmetric, and described commutator segment adopts yellow gold material, and described sleeve surface is provided with lines, a long limit of mica sheet is provided with two place's dovetails, respectively near two minor faces.
Described sleeve surface is provided with groove, and groove ring is located on lining.
Adopt such scheme, because commutator segment foot has the arch bridge structure being centrosymmetric, increase the contact area of commutator segment and moulding compound, and sleeve surface is provided with lines, increase friction and make bonding more firm between lining and commutator, effectively prevent the phenomenon of commutator segment film dancing and film flying, and effectively prevent lining autobiography, commutator problem of Cracking, because commutator segment adopts yellow gold, strengthen the oxidation resistance of commutator segment, and a long limit of mica sheet is provided with two place's dovetail grooves, strengthen the bonding of mica sheet and moulding compound, greatly strengthen the tighten up power of mica sheet in commutator, effectively prevent that the mica sheet that commutator causes under high speed rotating state from floating or flying out, thereby improve the quality of commutator, improve the useful life of commutator.Brief description of the drawings
By the detailed description below in conjunction with accompanying drawing, the utility model is aforesaid will be become apparent with other object, feature and advantage.Wherein:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of lining in the utility model.
Fig. 3 is the structural representation of mica sheet in the utility model.
In figure, 1 is commutator segment, and 2 is moulding compound, and 3 is mica sheet, and 4 is lining, and 5 is foot, and 6 is lines, and 7 is groove, and 8 is dovetail.
Embodiment
Commutator as shown in Figure 1 to Figure 3, comprise commutator segment 1, lining 4, moulding compound 2 and mica sheet 3, moulding compound 2 is by after preheating, under HTHP, apply rapidly, it is flowed between commutator segment 1 and lining 4, after moulding compound 2 solidifies, make commutator segment 1, moulding compound 2 and lining 4 firmly combine, between described commutator segment 1, be provided with mica sheet 3, described commutator segment 1 foot 5 has the arch bridge structure being centrosymmetric, the foot 5 that is commutator segment 1 has with it vertical, the center line of level is axle left and right, equal symmetrical arch bridge-type structure up and down, adopt this structure can increase the contact area of commutator segment 1 and moulding compound 2, make contact strength between the two reliable, arriving of adhesive force improves, prevent commutator segment 1 film flying, film dancing phenomenon, described commutator segment 1 adopts yellow gold, increase the oxidation resistance of commutator segment 1, increase the useful life of commutator, described lining 4 surfaces are provided with lines 6, lines 6 can be striped, vertical line etc., lining 4 surfaces are provided with groove 7, groove 7 rings are located on lining 4 surfaces, thereby increase the frictional force between lining 4 and commutator, make bonding more firm between lining 4 and commutator, effectively prevent lining 4 autobiographies and commutator cracking, 3 one long limits of described mica sheet are provided with two place's dovetails 8, dovetail 8 is separately positioned near two minor face places, mica sheet 3 dovetail 8 structure settings, after commutator injection mo(u)lding, mica sheet 3 is not only fixed between commutator segment 1 and commutator segment 1 with commutator segment 1 pole sheet pressure, and the dovetail 8 of mica sheet 3 can with moulding compound 2 strong bonded, thereby strengthen the fastening force of mica sheet 3 in commutator, effectively prevent that the mica sheet 3 that commutator causes under high speed rotating state from floating or flying out.
The utility model is not limited to described embodiment; those skilled in the art is not departing from spirit of the present utility model openly in scope; still can do some corrections or change, therefore the scope that rights protection scope of the present utility model limits with claims is as the criterion.
Claims (2)
1. commutator, comprise commutator segment, lining, moulding compound and mica sheet, described commutator combines by moulding compound and lining, between described commutator segment, be provided with mica sheet, it is characterized in that: the foot of described commutator segment has the arch bridge-type structure being centrosymmetric, described commutator segment adopts yellow gold material, and described sleeve surface is provided with lines, a long limit of mica sheet is provided with two place's dovetails, respectively near two minor faces.
2. commutator according to claim 1, is characterized in that: described sleeve surface is provided with groove, and groove ring is located on lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773689.2U CN203707535U (en) | 2013-11-29 | 2013-11-29 | Commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320773689.2U CN203707535U (en) | 2013-11-29 | 2013-11-29 | Commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707535U true CN203707535U (en) | 2014-07-09 |
Family
ID=51057920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320773689.2U Expired - Fee Related CN203707535U (en) | 2013-11-29 | 2013-11-29 | Commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795709A (en) * | 2015-04-30 | 2015-07-22 | 湖州展瑞机电科技有限公司 | Commutator for direct-current motors |
| CN104810701A (en) * | 2015-04-30 | 2015-07-29 | 湖州展瑞机电科技有限公司 | Special commutator for direct-current motor |
-
2013
- 2013-11-29 CN CN201320773689.2U patent/CN203707535U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795709A (en) * | 2015-04-30 | 2015-07-22 | 湖州展瑞机电科技有限公司 | Commutator for direct-current motors |
| CN104810701A (en) * | 2015-04-30 | 2015-07-29 | 湖州展瑞机电科技有限公司 | Special commutator for direct-current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20181129 |