CN210167618U - Motor commutator capable of prolonging service life - Google Patents
Motor commutator capable of prolonging service life Download PDFInfo
- Publication number
- CN210167618U CN210167618U CN201920290284.0U CN201920290284U CN210167618U CN 210167618 U CN210167618 U CN 210167618U CN 201920290284 U CN201920290284 U CN 201920290284U CN 210167618 U CN210167618 U CN 210167618U
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- commutator
- bar
- bush
- bushing
- motor
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Abstract
The utility model discloses a can improve life's motor commutator, including bush, commutator bar, bakelite powder, crotch and mica sheet, the commutator bar pass through bakelite powder with the integrative die-casting shaping of bush, the outer peripheral surface hoop interval of bush is equipped with boss and concave station, the boss surface is equipped with interval distribution's straight line, the commutator bar inboard ring is to being provided with the supporting legs, the one end hoop of commutator bar is fixed with a plurality of crotch, the excircle circumference distribution of commutator bar has the mica sheet of interval setting. The utility model discloses a commutator adds the ring through the installation to and set up straight line on the bush surface, can effectually prevent the jump piece and the flight piece of commutator segment, prevent the biography certainly of bush, thereby improve the quality of commutator, and improve the life of commutator.
Description
Technical Field
The utility model relates to a commutator, concretely relates to can improve life's motor commutator.
Background
The commutator is divided into a plane commutator, a groove commutator and a hook commutator, and mainly comprises an insulating base body and commutator segments distributed on the circumferential surface of the base body, wherein insulating grass is arranged between adjacent commutator segments to separate and insulate the commutator segments, and one end of each commutator segment is bent for wiring. The existing connection mode of the commutator segment and the base body is realized by embedding the connecting wing on the commutator segment into the base body during injection molding, and the commutator segment is easily separated from the base body due to the fact that the contact area of the connecting wing and the base body is small, and the commutator rotates in the operation process under the action of centrifugal force.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at solving the not enough among the prior art, provide a can improve life's motor commutator, through the installation reinforcing ring to and be provided with fixed dimension's supporting legs, set up straight line on the bush surface, can effectually prevent the jump bit and the flyer of commutator segment, prevent the biography of oneself of bush, thereby improve the quality of commutator, and improve the life of commutator.
The technical scheme is as follows: the motor commutator capable of prolonging the service life comprises a bushing, a commutator bar, bakelite powder, hooks, mica sheets and reinforcing rings, wherein the commutator bar is integrally formed with the bushing through the bakelite powder in a die-casting manner, bosses and concave platforms are arranged on the circumferential surface of the bushing at intervals, straight grains distributed at intervals are arranged on the surface of each boss, first slots and second slots are respectively arranged on the circumferential direction of two end parts of the commutator bar, the reinforcing rings are fixedly arranged in the first slots and the second slots, the inner diameter of each reinforcing ring is 18.0-18.5mm, and the outer diameter of each reinforcing ring is 20.5-21.0 mm; and a plurality of hooks are fixed at one end of the commutator segment in the annular direction, and mica sheets are distributed at intervals on the circumference of the outer circle of the commutator segment.
Furthermore, the overall diameter of the commutator is 24.3-24.6mm, and the overall length is 19.0-19.5 mm.
1. Further, the end of the bushing is in a trapezoidal structure.
Furthermore, the side edge of the trapezoid structure and the vertical line form an included angle of 60 degrees.
Furthermore, the included angle between the hook and the outer side surface of the commutator segment is 18-25 degrees.
Furthermore, the length of the hook is 3-3.5mm, the width of the hook is 10-12mm, and the thickness of the hook is 0.7-0.8 mm.
Further, the distance between the adjacent hooks is 20-25 mm.
Further, the width of boss is 3.5mm, and the width of concave station is 2 mm.
Furthermore, the depth of the mica sheet is 8-10mm, and the width of the mica sheet is 0.5-1.0 mm.
Furthermore, the distance between the straight grains is 0.3-0.5 mm.
Has the advantages that: the utility model discloses a commutator adds the ring through the installation to and set up straight line on the bush surface, can effectually prevent the jump piece and the flight piece of commutator segment, prevent the biography certainly of bush, thereby improve the quality of commutator, and improve the life of commutator.
Drawings
FIG. 1 is a cross-sectional view of the commutator structure of the present invention;
FIG. 2 is a schematic structural view of mica sheets in the commutator of the present invention;
fig. 3 is a schematic structural view of a bushing in the commutator of the present invention;
fig. 4 is a schematic view of the structure of the reinforcing ring of the present invention.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the following specific examples.
The stable commutator with the reinforcing ring comprises a bushing 1, a commutator segment 2, bakelite powder 3, hooks 5, mica sheets 6 and a reinforcing ring 13, wherein the commutator segment 2 is integrally formed with the bushing 1 through the bakelite powder 3 in a die-casting manner, bosses 8 and concave platforms 7 are annularly arranged on the outer circumferential surface of the bushing 1 at intervals, and straight grains 9 distributed at intervals are arranged on the surfaces of the bosses 8.
The two end parts of the commutator segment 2 are annularly provided with a first open slot 11 and a second open slot 12 respectively, the first open slot 11 and the second open slot 12 are internally and fixedly provided with a reinforcing ring 13, the inner diameter of the reinforcing ring 13 is 18.0-18.5mm, the outer diameter of the reinforcing ring is 20.5-21.0mm, and the reinforcing ring is fixedly arranged in the open slot of the commutator segment, so that the phenomenon that the commutator segment jumps and flies can be effectively avoided, and the bushing is prevented from self-transmission.
A plurality of hooks 5 are fixed at one end of the commutator segment 2 in an annular direction, and mica sheets 6 are distributed at intervals on the circumference of the outer circle of the commutator segment 2; the overall diameter of the commutator is 24.3-24.6mm, the overall length is 19.0-19.5mm, the end part of the bushing 1 adopts a trapezoidal structure 10, and the side edge of the trapezoidal structure 10 forms an included angle of 60 degrees with the vertical line.
As a further optimization of the above embodiment:
preferably, the included angle between the hook 5 and the outer side surface of the commutator segment 2 is 18-25 degrees; the length of the hook 5 is 3-3.5mm, the width is 10-12mm, and the thickness is 0.7-0.8 mm; the distance between the adjacent hooks 5 is 20-25 mm.
The hooks are arranged on the outer circumference of the mica sheet, so that the adhesion between the mica sheet and the molding compound is enhanced, the fastening force of the mica sheet in the commutator is greatly enhanced, and the mica sheet is effectively prevented from floating or flying out under the high-speed rotation state of the commutator, thereby improving the quality of the commutator and prolonging the service life of the commutator.
In order to further enhance the connection between the commutator segment and the bushing, a straight-line structure is additionally arranged on the surface of the bushing in the embodiment, as shown in fig. 3.
Wherein, the width of boss 8 is 3.5mm, and the width of concave station 7 is 2mm, and the degree of depth is 0.4mm, and arranges each other at an interval. The surface of the boss 8 is also provided with straight grains 9 which are parallel to the radial direction of the commutator, and the distance between the straight grains 9 is 0.3-0.5 mm.
Preferably, the mica sheets 6 are arranged between two adjacent hooks 5, and the depth of each mica sheet 6 is 8-10mm, and the width of each mica sheet 6 is 0.5-1.0 mm. And the mica sheets 6 and the hooks 5 are arranged at intervals, so that the connection strength is greatly enhanced.
Preferably, the commutator segment 2 is made of silver-copper alloy materials, so that the service life can be prolonged.
The utility model discloses a commutator adds the ring through the installation to and set up straight line on the bush surface, can effectually prevent the jump piece and the flight piece of commutator segment, prevent the biography certainly of bush, thereby improve the quality of commutator, and improve the life of commutator.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the preferred embodiments, it is not limited to the present invention, and any skilled person in the art can make some modifications or equivalent embodiments without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a can improve life's motor commutator which characterized in that: the improved commutator bar is characterized by comprising a bushing (1), a commutator bar (2), bakelite powder (3), hooks (5), mica sheets (6) and reinforcing rings (13), wherein the commutator bar (2) is integrally die-cast with the bushing (1) through the bakelite powder (3), bosses (8) and concave platforms (7) are arranged on the circumferential surface of the bushing (1) at intervals, straight grains (9) distributed at intervals are arranged on the surface of the bosses (8), first slots (11) and second slots (12) are respectively arranged at the two ends of the commutator bar (2) in the circumferential direction, the reinforcing rings (13) are fixedly arranged in the first slots (11) and the second slots (12), the inner diameter of each reinforcing ring (13) is 18.0-18.5mm, and the outer diameter of each reinforcing ring is 20.5-21.0 mm; a plurality of hooks (5) are fixed at one end of the commutator segment (2) in an annular manner, and mica sheets (6) are distributed at intervals on the circumference of the outer circle of the commutator segment (2);
the included angle between the hook (5) and the outer side surface of the commutator segment (2) is 18-25 degrees; the length of the hook (5) is 3-3.5mm, the width is 10-12mm, and the thickness is 0.7-0.8 mm; the distance between the adjacent hooks (5) is 20-25 mm.
2. The motor commutator of claim 1, wherein: the overall diameter of the commutator is 24.3-24.6mm, and the overall length is 19.0-19.5 mm.
3. The motor commutator of claim 1, wherein: the end part of the bushing (1) adopts a trapezoidal structure (10).
4. A motor commutator of claim 3 which has an increased service life, wherein: the side edge of the trapezoid structure (10) forms an included angle of 60 degrees with the vertical line.
5. The motor commutator of claim 1, wherein: the width of the boss (8) is 3.5mm, and the width of the concave table (7) is 2 mm.
6. A motor commutator as defined in claim 1 or 5 which has an increased service life, wherein: the depth of the mica sheet (6) is 8-10mm, and the width of the mica sheet is 0.5-1.0 mm.
7. The motor commutator of claim 1, wherein: the distance between the straight grains (9) is 0.3-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920290284.0U CN210167618U (en) | 2019-03-08 | 2019-03-08 | Motor commutator capable of prolonging service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920290284.0U CN210167618U (en) | 2019-03-08 | 2019-03-08 | Motor commutator capable of prolonging service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210167618U true CN210167618U (en) | 2020-03-20 |
Family
ID=69786490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920290284.0U Expired - Fee Related CN210167618U (en) | 2019-03-08 | 2019-03-08 | Motor commutator capable of prolonging service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210167618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022126557A1 (en) * | 2020-12-17 | 2022-06-23 | 苏州溪能环保科技有限公司 | Hook type commutator having mica ring |
-
2019
- 2019-03-08 CN CN201920290284.0U patent/CN210167618U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022126557A1 (en) * | 2020-12-17 | 2022-06-23 | 苏州溪能环保科技有限公司 | Hook type commutator having mica ring |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200320 Termination date: 20210308 |