CN207098242U - It is a kind of not insert mica commutator - Google Patents
It is a kind of not insert mica commutator Download PDFInfo
- Publication number
- CN207098242U CN207098242U CN201721044176.2U CN201721044176U CN207098242U CN 207098242 U CN207098242 U CN 207098242U CN 201721044176 U CN201721044176 U CN 201721044176U CN 207098242 U CN207098242 U CN 207098242U
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- commutator
- fixed slot
- mica
- pedestal
- commutator segment
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Abstract
Mica commutator is not inserted the utility model discloses a kind of, including pedestal and annular array some commutator segments on pedestal excircle, insulation tank is provided between adjacent two commutator segment, for some commutator segments by the slot insulation that insulate, in addition to shaping ring, the shaping ring is concave shape structure, provided with a fixed slot, the commutator segment is provided with some card bases extending into pedestal, and each card base lower end side is provided with the shaped block that can be extend into fixed slot, and the shaped block is embedded in fixed slot.The utility model is easy to process, reduces labor intensity, and stability of the commutator segment in mould bucket has been effectively ensured, and improves the quality of commutator.
Description
Technical field
It the utility model is related to a kind of commutator, more particularly to a kind of not slotting mica commutator.
Background technology
Commutator is the critical piece in motor, and it is mainly changed by bakelite pedestal with the copper bar for being arranged in bakelite pedestal periphery
Formed to piece.Mica sheet and commutator segment will be used to be alternately arranged in the process of commutator at present, to prevent adjacent change
Contacted to piece and produce the situation of short circuit.But it is cumbersome with being operated during commutator segment layout in mica sheet, and to mica sheet
Arrangement required precision it is higher, the position of mica sheet occur skew can cause commutator can not normal process, this to process
Working strength is big during commutator, waste time and energy, efficiency is low, cost is high, and the mica of traditional slotting mica commutator easily caves in, and makes
Short circuit, commutator are scrapped between in flakes.And it is traditional do not insert mica commutator, be commutator segment to load after screening in mould bucket with
Bakelite powder material carries out injection molding together, then mills out insulation tank between two commutator segments, for convenience of the commutation after screening
Piece loads mould bucket, gap be present between the cylindrical bucket endoporus with mould of the commutator segment to be formed a circle after screening, commutator segment is in mould bucket
It is unstable, a certain amount of radial misalignments are easily produced during injection, and the production quality for influenceing commutator is poor.
Utility model content
For above-mentioned technological deficiency, the utility model provides a kind of stabilization do not inserted mica commutator, strengthen commutator segment
Property, the crudy of commutator is improved, and insulation tank groove width is easy to adjust, while also solve the problems, such as that mica caves in.
In order to reach above-mentioned technique effect, the technical solution adopted in the utility model is：
It is a kind of not insert mica commutator, including pedestal and annular array some commutator segments on pedestal excircle, it is adjacent
Insulation tank is provided between two commutator segments, some commutator segments pass through the slot insulation that insulate, in addition to shaping ring, the sizing
Ring is concave shape structure, and provided with a fixed slot, the commutator segment is provided with some card bases extending into pedestal, each card base
Lower end side is provided with the shaped block that can be extend into fixed slot, and the shaped block is embedded in fixed slot.
Compared with prior art, the beneficial effects of the utility model are：By setting character cut in bas-relief between commutator segment and pedestal
The shaping ring of shape, card base are provided with shaped block, and shaped block is embedded in fixed slot, so as to which commutator segment has been effectively ensured in the utility model
Stability in mould bucket, improve the quality of commutator segment.
Further, the shaped block is provided with projection, the side wall pair of fixed slot on the surface being in contact with sizing groove sidewall
Groove should be provided with, it is described raised in groove.The raised structure with fit depressions further increases commutator segment and is being molded
When stability.
Further, the shaping ring outer wall is provided with space with commutator segment inwall.When commutator processes injection bakelite, electricity
Wood can fill the space, so that the firmness that commutator segment is connected with pedestal is further strengthened.
Further, the card base is provided with three, and shaping ring also correspondingly is provided with three, and three shaping rings are respectively distributed to change
To the both ends and middle part of piece.
Further, the axial cross section of the card base is trapezoidal.
Further, the radial section of the card base is swallow-tail form.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, and in order to allow above and other purpose of the present utility model, feature
It can be become apparent with advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, described in detail.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is Fig. 1 A-A profile structure diagram.
Fig. 3 is the utility model partial sectional view.
Embodiment
As Figure 1-3, it is a kind of do not insert mica commutator, if including pedestal 2 and annular array on the excircle of pedestal 2
Dry commutator segment 1, insulation tank 3 is provided between adjacent two commutator segment 1, some commutator segments 1 are insulated by insulation tank 3.This does not insert mica
Commutator also includes shaping ring 4, and shaping ring 4 is concave shape structure, provided with a fixed slot.Each commutator segment 1 is provided with and extend into base
Three card bases 11 in seat 2, three card bases 11 are respectively distributed to the both ends of commutator segment 1 and the middle part of commutator segment 1.The axle of card base 11
It is trapezoidal to section, radial section is swallow-tail form.Each lower end side of card base 11 is provided with the shaped block that can be extend into fixed slot
12, shaped block 12 is embedded in fixed slot, and space is provided between the outer wall of shaping ring 4 and the inwall of commutator segment 1.It is preferably, fixed
Type block 12 is provided with projection 13 on the surface being in contact with sizing groove sidewall, and the side wall of fixed slot is correspondingly provided with groove, raised 13
In in groove.
For the utility model by the shaping ring of the setting concave shape between commutator segment and pedestal, card base is provided with shaped block, fixed
Type block is embedded in fixed slot, using sizing and positioning of the shaped block to commutator segment, so as to which commutator segment be effectively ensured in mould bucket
Interior stability, improve the quality of commutator segment；The processing mode of slotting mica sheet is compared, it is strong that the utility model also reduces work
Spend, improve efficiency.In addition, of the present utility model do not insert when mica commutator is processed can as needed control or reduce insulation
The groove width of groove, effectively reduction carbon brush streak the resonance caused by commutator segment, improve caused spark in the commutator course of work
And noise, while can also reduce the overall volume of commutator.
The utility model is not limited to above-mentioned specific embodiment, for the person of ordinary skill of the art from upper
Design is stated to set out, without performing creative labour, made a variety of conversion, all fall within the scope of protection of the utility model it
It is interior.
Claims (6)
1. a kind of do not insert mica commutator, including pedestal and annular array some commutator segments on pedestal excircle, and adjacent two
Insulation tank is provided between the commutator segment, some commutator segments pass through the slot insulation that insulate, it is characterised in that also include sizing
Ring, the shaping ring is concave shape structure, and provided with a fixed slot, the commutator segment is provided with some card bases extending into pedestal,
Each card base lower end side is provided with the shaped block that can be extend into fixed slot, and the shaped block is embedded in fixed slot.
2. it is according to claim 1 it is a kind of not insert mica commutator, it is characterised in that the shaped block with fixed slot side
The surface that wall is in contact is provided with projection, and the side wall of fixed slot is correspondingly provided with groove, described raised in groove.
3. a kind of not slotting mica commutator according to claim 1, it is characterised in that the shaping ring outer wall and commutator segment
Inwall is provided with space.
4. a kind of not slotting mica commutator according to claim 1, it is characterised in that the card base is provided with three, sizing
Ring also correspondingly is provided with three, and three shaping rings are respectively distributed to the both ends and middle part of commutator segment.
5. a kind of not slotting mica commutator according to claim 1, it is characterised in that the axial cross section of the card base is ladder
Shape.
6. a kind of not slotting mica commutator according to claim 1, it is characterised in that the radial section of the card base is swallow
Tail shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721044176.2U CN207098242U (en) | 2017-08-21 | 2017-08-21 | It is a kind of not insert mica commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721044176.2U CN207098242U (en) | 2017-08-21 | 2017-08-21 | It is a kind of not insert mica commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207098242U true CN207098242U (en) | 2018-03-13 |
Family
ID=61542008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721044176.2U Active CN207098242U (en) | 2017-08-21 | 2017-08-21 | It is a kind of not insert mica commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207098242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473840A (en) * | 2018-10-22 | 2019-03-15 | 瑞安市红旗换向器有限公司 | A kind of commutator of aero dynamo |
-
2017
- 2017-08-21 CN CN201721044176.2U patent/CN207098242U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473840A (en) * | 2018-10-22 | 2019-03-15 | 瑞安市红旗换向器有限公司 | A kind of commutator of aero dynamo |
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