CN202602051U - Commutator - Google Patents
Commutator Download PDFInfo
- Publication number
- CN202602051U CN202602051U CN 201220222460 CN201220222460U CN202602051U CN 202602051 U CN202602051 U CN 202602051U CN 201220222460 CN201220222460 CN 201220222460 CN 201220222460 U CN201220222460 U CN 201220222460U CN 202602051 U CN202602051 U CN 202602051U
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- Prior art keywords
- commutator
- hook
- insulating body
- hook sheet
- commutator segment
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- Expired - Lifetime
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Abstract
The utility provides a commutator. The commutator comprises an insulation substrate, and a plurality of commutator segments distributed on the circumferential surface of the insulation substrate and combined with the insulation substrate. Adjacent commutator segments are mutually insulated from each other through an in-between insulation groove. One end of each commutator segment is provided with a wire hanging hook. At least one first hook piece is disposed at the inner side where each commutator segment is connected with the insulation substrate. A second hook piece is disposed at the inner side where each commutator segment is connected with the insulation substrate, and the position of the second hook piece corresponds to the area where an electric brush slidingly contacts with the commutator. The hook length of the second hook piece is large than that of the first hook piece. The second hook piece extends towards the central axis of the insulation substrate. The second hook piece and the corresponding commutator segment form an acute angle-alpha. According to the provided commutator, the commutator segments can not easily be separated from the insulation substrate, and the occurrence of commutator segment separation is prevented.
Description
Technical field
The utility model relates to a kind of commutator, belongs to the electric component field.
Background technology
Commutator is one of critical piece of brush motor, is widely used in the electric motor, and it comprises insulating body and the some commutator segments that are distributed in the insulating body outer peripheral face, insulate through insulation tank between the adjacent said commutator segment.Said commutator segment generally combines with said insulating body through the hook sheet on the wall that sets within it.The shape that when design hook chip architecture, will take all factors into consideration said hook sheet is to himself intensity and to the factors such as influence of itself and said commutator segment combination stability.
Chinese patent document CN2664237Y discloses a kind of commutator; It comprises insulating cylinder body and the some commutator segments that are distributed in the insulating cylinder body side face and combine with cylindrical shell; Pass through the insulation tank mutually insulated between each commutator segment; The inboard that said commutator segment combines with cylindrical shell has hook sheet 1`, and said hook sheet 1` is a plurality of, said hook sheet 1` in the inboard of commutator along circumferential extension; And the axis direction along perpendicular to said insulating cylinder body is arranged in parallel, and has groove 2` between the adjacent said hook sheet, and the cross section of this groove 2` has the diminishing shape of axis from commutator segment towards cylindrical shell, sees Fig. 1.In use still there is following defective in disclosed commutator in the above-mentioned patent documentation: because commutator in use forms a pair of sliding friction pair with brush; Brush often slides at the brush slide contact zone (being the a-quadrant among Fig. 1) of commutator outer surface; Make this zone receive the interference of centrifugal force easily, the direction of this centrifugal force is shown in arrow B among Fig. 1, and the opening direction of above-mentioned hook sheet 1` and groove 2` is identical with the direction of this external force; And the hook of said hook sheet 1` is long very short; The groove depth of said groove 2` is very shallow, and this causes the embedding area of said insulating body very little, therefore can't between commutator segment and insulating body, form strong adhesion; Thereby cause commutator segment to be easy to be separated, and then cause the generation of film flying phenomenon in a-quadrant and insulating body; And if simply with the groove depth intensification of said groove 2`, this certainly will cause the wall thickness of commutator segment to reduce again, thereby influences the useful life of commutator.
The utility model content
Therefore; The utility model technical problem to be solved is to overcome commutator of the prior art causes taking into account stability and the commutator of commutator segment and insulating body owing to the design of hook chip architecture the is unreasonable defective in useful life, thereby provides a kind of can the assurance to combine to stablize the commutator that can guarantee useful life again between commutator segment and the insulating body.
For this reason; The utility model provides a kind of commutator; Comprise insulating body and the some commutator segments that are distributed in the side face of said insulating body and combine with it; Through the insulation tank mutually insulated, an end of each said commutator segment is provided with wire-hanging hook between the adjacent said commutator segment, and the inboard that each said commutator segment combines with said insulating body all is provided with at least one first hook sheet; The inboard that each said commutator segment combines with said insulating body also is provided with the second hook sheet in the zone corresponding to brush and commutator sliding contact; The hook of the said second hook sheet is grown up long in the hook of the said first hook sheet, and the said second hook sheet extends towards the axis of said insulating body, and the said commutator segment that the said second hook sheet is corresponding with it forms sharp angle.
Said sharp angle is 20-70 °.
Said acute angles beta is 45 °.
The inboard that each said commutator segment combines with said insulating body all is being provided with the 3rd hook sheet corresponding to the zone near said wire-hanging hook; The hook of said the 3rd hook sheet is grown up long in the hook of the said first hook sheet; Said the 3rd hook sheet extends towards the axis of said insulating body, and the said commutator segment that said the 3rd hook sheet is corresponding with it forms acute angles beta.
The second hook sheet and said the 3rd hook sheet are provided with in the same way.
Said second hook sheet and said the 3rd hook sheet are provided with in opposite directions.
Said acute angles beta is 20-70 °.
Said acute angles beta is 45 °.
The said first hook sheet is towards the circumferential extension of said insulating body, and is arranged in parallel along the axis direction of said insulating body.
Have groove between the adjacent said first hook sheet, said groove has the opening that shrinks towards the axis direction of said insulating body.
The commutator that the utility model provides has the following advantages:
1. the commutator that provides of the utility model; Comprise insulating body and the some commutator segments that are distributed in the side face of said insulating body and combine with it; Pass through the insulation tank mutually insulated between the adjacent said commutator segment; One end of each said commutator segment is provided with wire-hanging hook; The inboard that each said commutator segment combines with said insulating body all is provided with at least one first hook sheet, and the inboard that each said commutator segment combines with said insulating body also is provided with the second hook sheet in the zone corresponding to brush and commutator sliding contact, and the hook of the said second hook sheet is grown up long in the hook of the said first hook sheet; The said second hook sheet extends towards the axis of said insulating body, and the said commutator segment that the said second hook sheet is corresponding with it forms sharp angle.Because the inboard that each said commutator segment combines with said insulating body also is provided with the second hook sheet in the zone corresponding to brush and commutator sliding contact; Said insulating body can be embedded in the sharp angle of said second hook sheet and the formation of said commutator segment; And then with said commutator segment strong bonded; Therefore, the commutator that the utility model provides is when producing the external force shown in arrow B among Fig. 1 even brush slides on the outer surface of said commutator; Said commutator segment also is difficult for separating with said insulating body, thereby has avoided the generation of film flying phenomenon; In addition; The commutator of the utility model is provided with hook separately and grows up in the second long hook sheet of the said first hook sheet hook; Therefore, at the combination stability that has further improved under the situation of the wall thickness that needn't sacrifice said commutator segment between commutator segment and the insulating body, and guaranteed useful life of commutator.
2. the commutator that provides of the utility model, said sharp angle angle is set except the combination stability of considering said commutator segment and said insulating body, also need consider the influence of product structure to the thickness of insulating body.For the requirement of satisfying combination stability; Hope that said sharp angle is big as far as possible. in the utility model; In order to guarantee the combination stability of said commutator segment and said insulating body, and guarantee that said insulating body has suitable thickness, said sharp angle is preferably between 20-70 °; Further preferably, said sharp angle is 45 °.
3. the commutator that provides of the utility model; The inboard that each said commutator segment combines with said insulating body all is being provided with the 3rd hook sheet corresponding to the zone near said wire-hanging hook; The hook of said the 3rd hook sheet is grown up long in the hook of the said first hook sheet; Said the 3rd hook sheet extends towards the axis of said insulating body, and the said commutator segment that said the 3rd hook sheet is corresponding with it forms acute angles beta.Commutator is in the use of reality; Need on said wire-hanging hook, carry out hanging wire; In pulling apart the process of said hanging wire; To receive the power of pullling near the zone of said wire-hanging hook (being the C zone shown in Fig. 1) on the said commutator away from the axis direction of said insulating body, i.e. the power of pullling of direction shown in the arrow D among Fig. 1, thus make said commutator segment separate with said insulating body easily in the C zone.The commutator that the utility model provides is provided with said the 3rd hook sheet in said C zone, makes in the said acute angles beta of the firm embedding of said insulating body, thereby has further improved the stability that combines of said commutator segment and said insulating body.
Description of drawings
For the content that makes the utility model is more clearly understood,, the utility model is done further detailed explanation, wherein below according to the specific embodiment of the utility model and combine accompanying drawing
Fig. 1 is the structural representation of a kind of commutator of providing of prior art;
Fig. 2 is the structural representation of a kind of embodiment of commutator of providing of the utility model;
Fig. 3 is the structural representation of the another kind of embodiment of the commutator that provides of the utility model.
Reference numeral is expressed as among the figure:
The 1-wire-hanging hook; The 2-commutator segment; The 3-first hook sheet; The 4-insulating body; The 5-second hook sheet; 6-the 3rd hook sheet.
Embodiment
The core purpose of the utility model is to provide between a kind of commutator segment and the insulating body and combines stable commutator.
In order to realize this core purpose; The commutator of the utility model especially considers to strengthen the stability of the weakness zone of commutator in running when design; Said weakness zone promptly causes said commutator segment and said insulating body separate areas easily; Be the inboard that combines with said insulating body of each said commutator segment corresponding to the zone of brush and commutator sliding contact with near the zone of said wire-hanging hook, also the a-quadrant shown in Fig. 1 and C are regional.
For realizing this core purpose; Present embodiment provides a kind of commutator; As shown in Figure 2, comprise insulating body 4 and the some commutator segments 2 that are distributed in the side face of said insulating body 4 and combine with it, pass through the insulation tank mutually insulated between the adjacent said commutator segment 2; One end of each said commutator segment 2 is provided with wire-hanging hook 1; The inboard that each said commutator segment 2 combines with said insulating body 4 all is provided with at least one first hook sheet 3, and the inboard that each said commutator segment 2 combines with said insulating body 4 also is provided with the second hook sheet 5 in the zone corresponding to brush and commutator sliding contact, and the hook of the said second hook sheet 5 is grown up long in the hook of the said first hook sheet 3; The said second hook sheet 5 extends towards the axis of said insulating body 4, and the said commutator segment 2 that the said second hook sheet 5 is corresponding with it forms sharp angle.
In the utility model, said sharp angle is taken all factors into consideration said commutator segment 2 and the combination stability of said insulating body 4 and the thickness of said insulating body 4 when design, and preferably, in the present embodiment, said sharp angle is 45 °.All has effect preferably when certainly, said sharp angle is positioned at 20-70 ° of this scope.
In the present embodiment; In order further to improve the combination stability of said commutator segment 2 and said insulating body 4; The inboard that each said commutator segment 2 combines with said insulating body 4 all is being provided with the 3rd hook sheet 6 corresponding to the zone near said wire-hanging hook 1; The hook of said the 3rd hook sheet 6 is grown up long in the hook of the said first hook sheet 3, and said the 3rd hook sheet 6 extends towards the axis of said insulating body 4, and the said commutator segment 2 that said the 3rd hook sheet 6 is corresponding with it forms acute angles beta.
In the utility model, said acute angles beta is taken all factors into consideration said commutator segment 2 and the combination stability of said insulating body 4 and the thickness of said insulating body 4 when design, and preferably, in the present embodiment, said acute angles beta is 45 °.All has effect preferably when certainly, said acute angles beta is positioned at 20-70 ° of this scope.
As shown in Figure 3, in the present embodiment, the said second hook sheet 5 is provided with said the 3rd hook sheet 6 in opposite directions.The said second hook sheet 5 is provided with the enclosing region H with an openend that can form an integral body in the inboard that said commutator segment 2 combines with said insulating body 4 in opposite directions with said the 3rd hook sheet 6; Said enclosing region H is when guaranteeing that said insulating body 4 has enough embedded spaces; Form an opening that tightens towards the axis direction of said insulating body 4, thereby further guaranteed the combination stability of said commutator segment 2 and said insulating body 4.Certainly, the said second hook sheet 5 also can be provided with said the 3rd hook sheet 6 in the same way, and is as shown in Figure 2.
Need to prove that the shape of the said first hook sheet 3 of the utility model is various, in the present embodiment, the said first hook sheet 3 is towards the circumferential extension of said sterilization matrix 4, and is arranged in parallel along the axis direction of said insulating body 4.Have groove between the adjacent said first hook sheet 3, said groove has the opening that shrinks towards the axis direction of said insulating body 4.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to execution mode.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the utility model.
Claims (10)
1. commutator; The some commutator segments (2) that comprise insulating body (4) and be distributed in the side face of said insulating body (4) and combine with it; Pass through the insulation tank mutually insulated between the adjacent said commutator segment (2); One end of each said commutator segment (2) is provided with wire-hanging hook (1); The inboard that each said commutator segment (2) combines with said insulating body (4) all is provided with at least one first hook sheet (3); It is characterized in that: the inboard that each said commutator segment (2) combines with said insulating body (4) also is provided with the second hook sheet (5) in the zone corresponding to brush and commutator sliding contact; The hook of the said second hook sheet (5) is grown up long in the hook of the said first hook sheet (3), and the said second hook sheet (5) extends towards the axis of said insulating body (4), and the said commutator segment (2) that the said second hook sheet (5) is corresponding with it forms sharp angle.
2. commutator according to claim 1 is characterized in that: said sharp angle is 20-70 °.
3. commutator according to claim 2 is characterized in that: said sharp angle is 45 °.
4. according to each described commutator among the claim 1-3; It is characterized in that: the inboard that each said commutator segment (2) combines with said insulating body (4) all is being provided with the 3rd hook sheet (6) corresponding to the zone near said wire-hanging hook (1); The hook of said the 3rd hook sheet (6) is grown up long in the hook of the said first hook sheet (3); Said the 3rd hook sheet (6) extends towards the axis of said insulating body (4), and the said commutator segment (2) that said the 3rd hook sheet (6) is corresponding with it forms acute angles beta.
5. commutator according to claim 4 is characterized in that: the said second hook sheet (5) is provided with said the 3rd hook sheet (6) in the same way.
6. commutator according to claim 4 is characterized in that: the said second hook sheet (5) is provided with said the 3rd hook sheet (6) in opposite directions.
7. commutator according to claim 6 is characterized in that: said acute angles beta is 20-70 °.
8. commutator according to claim 7 is characterized in that: said acute angles beta is 45 °.
9. commutator according to claim 8 is characterized in that: the said first hook sheet (3) is towards the circumferential extension of said insulating body (4), and is arranged in parallel along the axis direction of said insulating body (4).
10. commutator according to claim 9 is characterized in that: have groove between the adjacent said first hook sheet (3), said groove has the opening that shrinks towards the axis direction of said insulating body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222460 CN202602051U (en) | 2012-05-17 | 2012-05-17 | Commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222460 CN202602051U (en) | 2012-05-17 | 2012-05-17 | Commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602051U true CN202602051U (en) | 2012-12-12 |
Family
ID=47319570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220222460 Expired - Lifetime CN202602051U (en) | 2012-05-17 | 2012-05-17 | Commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761041A (en) * | 2012-05-17 | 2012-10-31 | 深圳市凯中精密技术股份有限公司 | Reverser |
| CN104158042A (en) * | 2014-07-31 | 2014-11-19 | 瑞安市恒丰机电有限公司 | High-strength commutator |
-
2012
- 2012-05-17 CN CN 201220222460 patent/CN202602051U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761041A (en) * | 2012-05-17 | 2012-10-31 | 深圳市凯中精密技术股份有限公司 | Reverser |
| CN102761041B (en) * | 2012-05-17 | 2015-01-21 | 深圳市凯中精密技术股份有限公司 | Reverser |
| CN104158042A (en) * | 2014-07-31 | 2014-11-19 | 瑞安市恒丰机电有限公司 | High-strength commutator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |