CN209389407U - A kind of motor reinforced commutator - Google Patents
A kind of motor reinforced commutator Download PDFInfo
- Publication number
- CN209389407U CN209389407U CN201920288159.6U CN201920288159U CN209389407U CN 209389407 U CN209389407 U CN 209389407U CN 201920288159 U CN201920288159 U CN 201920288159U CN 209389407 U CN209389407 U CN 209389407U
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- CN
- China
- Prior art keywords
- commutator
- bushing
- commutator segment
- motor reinforced
- width
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- 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.)
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Abstract
The utility model discloses a kind of motor reinforced commutators, including bushing, commutator segment, phenolic moulding powder, trapezoidal foot, crotch and mica sheet, the commutator segment is formed by phenolic moulding powder and the bushing integrated die-casting, the excircle of bushing perimeter surface is circumferentially spaced-apart to be equipped with boss and concave station, the boss surface is equipped with the straight grain of spacing distribution, commutation is provided with trapezoidal foot on the inside of the commutator segment, one end circumferential direction of the commutator segment is fixed with several crotches, the mica sheet that the outer circle circle distribution of the commutator segment has spacing to be arranged.A kind of motor reinforced commutator of the utility model, by being provided with fixed-size trapezoidal foot and straight grain being arranged in sleeve surface, the film dancing and film flying of commutator segment can be effectively prevented, the autobiography of bushing is prevented, to improve the quality of commutator, and improve the service life of commutator.
Description
Technical field
The utility model relates to a kind of commutators, and in particular to a kind of motor reinforced commutator.
Background technique
Commutator is mainly used for electromechanics trade, and commutator is divided into plane commutator, tank commutator and hook-type commutator,
It mainly by insulating body and the commutator segment that is arranged on base circumferential face, setting insulation grass between adjacent commutator segment and will be each
Commutator segment separation insulation, commutator segment one end dogleg section are used for wiring.The connection type of existing commutator segment and matrix is to pass through
The connection wing on commutator segment is realized in insertion matrix in injection molding, since the volume contact area of the connection wing and matrix is small, causes to change
It rotates in operation process to device and is acted on by centrifugal force, be easy to happen the case where commutator segment is separated with matrix.
Utility model content
Purpose of utility model: purpose of the utility model is to solve deficiencies in the prior art, provide a kind of motor
It can effectively be prevented with reinforced commutator by being provided with fixed-size trapezoidal foot and straight grain being arranged in sleeve surface
The film dancing and film flying of commutator segment, prevent the autobiography of bushing, to improve the quality of commutator, and improve the use longevity of commutator
Life.
Technical solution: a kind of motor reinforced commutator described in the utility model, including bushing, commutator segment, bakelite
Powder, trapezoidal foot, crotch and mica sheet, the commutator segment are formed by phenolic moulding powder and the bushing integrated die-casting, outside the bushing
Circumferential surface is circumferentially spaced-apart to be equipped with boss and concave station, and the boss surface is equipped with the straight grain of spacing distribution, the commutator segment inside
Commutation is provided with trapezoidal foot, and one end circumferential direction of the commutator segment is fixed with several crotches, the outer circle circle distribution of the commutator segment
The mica sheet for thering is spacing to be arranged；The integral diameter of the commutator is 27-27.25mm, entire length 21.0-21.5mm, described
The end of bushing uses trapezium structure, and the side of the trapezium structure and vertical line are in 60 ° of angles.
Further, the quantity of the trapezoidal foot is at least 2, it is adjacent between separation be 6-7mm.
Further, the upper width of the trapezoidal foot is 4.5mm, lower width 6.5mm, depth 5-6mm.
Further, the bottom both ends circular arc chamfering R of the trapezoidal foot is 0.3mm.
Further, the angle of the crotch and commutator segment lateral surface is 18-25 °.
Further, the length of the crotch is 3-3.5mm, width 10-12mm, with a thickness of 0.7-0.8mm.
Further, the spacing between the adjacent crotch is 20-25mm.
Further, the width of the boss is 3mm, and the width of concave station is 2mm.
Further, the depth of the mica sheet is 8-10mm, width 0.5-1.0mm.
Further, the spacing of the straight grain is 0.3-0.5mm.
The utility model has the advantages that a kind of motor reinforced commutator of the utility model, fixed-size trapezoidal by being provided with
Foot and sleeve surface be arranged straight grain, can effectively prevent the film dancing and film flying of commutator segment, prevent the autobiography of bushing, to mention
The quality of high commutator, and improve the service life of commutator.
Detailed description of the invention
Fig. 1 is the commutator structure cross-sectional view of the utility model；
Fig. 2 is the mica sheet structural schematic diagram in the commutator of the utility model；
Bush structure schematic diagram in the commutator of the position Fig. 3 the utility model.
Specific embodiment
Technical solution of the present invention is described in further detail combined with specific embodiments below.
Such as a kind of Fig. 1 to motor reinforced commutator shown in Fig. 3, including it is bushing 1, commutator segment 2, phenolic moulding powder 3, trapezoidal
Foot 4, crotch 5 and mica sheet 6, the commutator segment 2 are formed by phenolic moulding powder 3 and 1 integrated die-casting of bushing, outside the bushing 1
Circumferential surface is circumferentially spaced-apart to be equipped with boss 8 and concave station 7, and 8 surface of boss is equipped with the straight grain 9 of spacing distribution, the commutator segment 2
Inside commutation is provided with trapezoidal foot 4, and one end circumferential direction of the commutator segment 2 is fixed with several crotches 5, the outer circle of the commutator segment 2
The mica sheet 6 that circle distribution has spacing to be arranged；The integral diameter of the commutator is 27-27.25mm, entire length 21.0-
21.5mm, the end of the bushing 1 use trapezium structure 10, and the side of the trapezium structure 10 and vertical line are in 60 ° of angles.
Further optimization as above-described embodiment:
Preferably, the quantity of the trapezoidal foot 4 is at least 2, it is adjacent between separation be 6-7mm；It is described trapezoidal
The upper width of foot 4 is 4.5mm, lower width 6.5mm, depth 5-6mm；The bottom both ends circular arc of the trapezoidal foot 4 falls
Angle R is 0.3mm.
Since commutator segment foot has the trapezoidal leg structure being centrosymmetric, the contact surface of commutator segment and phenolic moulding powder is increased
Long-pending and sleeve surface is equipped with lines, and increasing friction keeps the bonding between bushing and commutator stronger, effectively prevents
The phenomenon that commutator segment film dancing and film flying, and bushing autobiography is effectively prevented, commutator problem of Cracking, since commutator segment uses
Yellow gold strengthens the oxidation resistance of commutator segment.
Preferably, the angle of the crotch 5 and 2 lateral surface of commutator segment is 18-25 °；The length of the crotch 5 is 3-
3.5mm, width 10-12mm, with a thickness of 0.7-0.8mm；Spacing between the adjacent crotch (5) is 20-25mm.
The excircle of mica sheet is equipped with crotch, enhances the bonding of mica sheet and moulding compound, greatly enhances mica sheet and changing
Fastening power into device effectively prevent commutator caused mica sheet under high-speed rotation state to float or fly out, to mention
The quality of high commutator improves the service life of commutator.
In order to further enhance the connection between commutator segment and bushing, also it is additionally arranged directly in the present embodiment on the surface of bushing
Line structure, as shown in Figure 3.
Wherein, the width of the boss 8 is 3mm, and the width of concave station 7 is 2mm, depth 0.4mm, and the row of being spaced apart from each other
Cloth.The straight grain 9 radial parallel with commutator is additionally provided on the surface of boss 8, the spacing of straight grain 9 is 0.3-0.5mm.
Preferably, the mica sheet 6 is mounted between adjacent two crotch 5, and the depth of the mica sheet 6 is 8-10mm, wide
Degree is 0.5-1.0mm.And along commutator radially installed, therefore mica sheet 6 and crotch 5 are interval installation, the company of greatly strengthening
Connect intensity.
Preferably, the 2 yellow gold material of commutator segment is made, and the service life can be improved.
A kind of motor reinforced commutator of the utility model, by being provided with fixed-size trapezoidal foot and straight grain knot
Structure can effectively prevent the film dancing and film flying of commutator segment, prevent the autobiography of bushing, to improve the quality of commutator, Yi Jiti
The service life of high commutator.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not intended to limit the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Professional and technical personnel is known, is not being departed within the scope of technical solutions of the utility model, when in the technology using the disclosure above
Hold the equivalent embodiment made a little change or be modified to equivalent variations, but all without departing from technical solutions of the utility model
Hold, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still
It is within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of motor reinforced commutator, it is characterised in that: including bushing (1), commutator segment (2), phenolic moulding powder (3), trapezoidal
Foot (4), crotch (5) and mica sheet (6), the commutator segment (2) are formed by phenolic moulding powder (3) and the bushing (1) integrated die-casting,
Bushing (1) external peripheral surface is circumferentially spaced-apart to be equipped with boss (8) and concave station (7), and boss (8) surface is distributed equipped with spacing
Straight grain (9), commutation is provided with trapezoidal foot (4) on the inside of the commutator segment (2), and one end circumferential direction of the commutator segment (2) is fixed with
Several crotches (5), the mica sheet (6) that the outer circle circle distribution of the commutator segment (2) has spacing to be arranged；The entirety of the commutator is straight
Diameter is 27-27.25mm, and the end of entire length 21.0-21.5mm, the bushing (1) use trapezium structure (10), the ladder
The side of shape structure (10) and vertical line are in 60 ° of angles.
2. a kind of motor reinforced commutator according to claim 1, it is characterised in that: the number of the trapezoidal foot (4)
Amount be at least 2, it is adjacent between separation be 6-7mm.
3. a kind of motor reinforced commutator according to claim 1 or 2, it is characterised in that: the trapezoidal foot (4)
Upper width is 4.5mm, lower width 6.5mm, depth 5-6mm.
4. a kind of motor reinforced commutator according to claim 1 or 2, it is characterised in that: the trapezoidal foot (4)
Bottom both ends circular arc chamfering R is 0.3mm.
5. a kind of motor reinforced commutator according to claim 1, it is characterised in that: the crotch (5) and commutation
The angle of piece (2) lateral surface is 18-25 °.
6. a kind of motor reinforced commutator according to claim 1 or 5, it is characterised in that: the length of the crotch (5)
Degree is 3-3.5mm, width 10-12mm, with a thickness of 0.7-0.8mm.
7. a kind of motor reinforced commutator according to claim 1, it is characterised in that: the adjacent crotch (5) it
Between spacing be 20-25mm.
8. a kind of motor reinforced commutator according to claim 1, it is characterised in that: the width of the boss (8)
For 3mm, the width of concave station (7) is 2mm.
9. a kind of motor reinforced commutator according to claim 1 or 8, it is characterised in that: the mica sheet (6)
Depth is 8-10mm, width 0.5-1.0mm.
10. a kind of motor reinforced commutator according to claim 1, it is characterised in that: the spacing of the straight grain (9)
For 0.3-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920288159.6U CN209389407U (en) | 2019-03-07 | 2019-03-07 | A kind of motor reinforced commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920288159.6U CN209389407U (en) | 2019-03-07 | 2019-03-07 | A kind of motor reinforced commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209389407U true CN209389407U (en) | 2019-09-13 |
Family
ID=67854552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920288159.6U Expired - Fee Related CN209389407U (en) | 2019-03-07 | 2019-03-07 | A kind of motor reinforced commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209389407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818223A (en) * | 2019-03-07 | 2019-05-28 | 江苏利丰机电有限公司 | A kind of motor reinforced commutator |
-
2019
- 2019-03-07 CN CN201920288159.6U patent/CN209389407U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109818223A (en) * | 2019-03-07 | 2019-05-28 | 江苏利丰机电有限公司 | A kind of motor reinforced commutator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190913 Termination date: 20210307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |