CN214044267U - Mica-free commutator copper bar - Google Patents
Mica-free commutator copper bar Download PDFInfo
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- CN214044267U CN214044267U CN202120234113.3U CN202120234113U CN214044267U CN 214044267 U CN214044267 U CN 214044267U CN 202120234113 U CN202120234113 U CN 202120234113U CN 214044267 U CN214044267 U CN 214044267U
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- commutator
- point
- shaped bulge
- mica
- commutator copper
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Abstract
The utility model discloses a no mica commutator copper bar comprises the lamellar body and the fixed foot of connecting in the lamellar body medial surface, its characterized in that: the middle position of the right side surface of the sheet body is provided with a single-side point-shaped bulge, the arrangement direction of the point-shaped bulge is the same as the length direction of the sheet body, and when a plurality of commutator copper rows are arranged in a circumferential mode through the point-shaped bulge, the point-shaped bulge of the left commutator copper row is in seamless contact with the left side surface of the right commutator copper row. The utility model is used for the preparation of no mica commutator, save material reduce cost increases commutator intensity simultaneously.
Description
Technical Field
The utility model relates to a commutator technical field, concretely relates to copper bar of no mica commutator.
Background
At present, a plurality of commutator copper bars are arranged close to each other and circumferentially, then are placed in an injection molding barrel, are subjected to pressure injection together with bakelite powder, and are subjected to groove milling in the middle of the adjacent commutator copper bars after the pressure injection is finished so as to form inter-sheet insulation of the commutator copper bars. The defects are that the copper material consumption is large, the machining allowance is also large, the cost of the commutator is increased, and the market competition and the product popularization are not facilitated. In addition, the commutator product needs to improve the bonding strength between the commutator copper bar and the bakelite powder substrate so as to better ensure the high-speed performance of the commutator product.
Disclosure of Invention
Not enough to prior art exists, the utility model aims at providing a preparation for having no mica commutator, save material reduce cost increases the no mica commutator copper bar of commutator intensity simultaneously.
The utility model discloses a realize through following technical scheme:
there is not mica commutator copper bar, by the lamellar body with connect in the fixed foot of lamellar body medial surface and constitute its characterized in that: the middle position of the right side surface of the sheet body is provided with a single-side point-shaped bulge, the arrangement direction of the point-shaped bulge is the same as the length direction of the sheet body, and when a plurality of commutator copper rows are arranged in a circumferential mode through the point-shaped bulge, the point-shaped bulge of the left commutator copper row is in seamless contact with the left side surface of the right commutator copper row.
The sheet body is provided with a right side surface protruding in a dot shape, and a notch groove is formed in the position where the copper bar hook is formed.
The lamellar body is equipped with the little forked tail structure of falling of triangle breach in order to form the lamellar body in the both sides of root position.
According to the technical scheme, the non-mica commutator copper bar is provided with the unilateral point-shaped bulges, the point-shaped bulges are used for separating a plurality of circumferentially arranged commutator copper bars from one another, and after the point-shaped bulges are injected with bakelite powder, the point-shaped bulges are milled by a milling cutter without milling an insulating groove with large machining allowance, so that the commutator copper bar is low in material consumption and small in machining allowance, and the purposes of saving materials and reducing cost are achieved; in addition, due to the arrangement of the notch groove, materials on two sides of the commutator copper bar hook are prevented from being processed by a large margin, so that the processing cost and the material cost are saved; in addition, the two sides of the root position of the sheet body are provided with triangular notches to form a small inverse dovetail structure of the sheet body, so that the bonding strength of the commutator copper bar and the bakelite powder substrate can be increased, and the high-speed performance of a commutator product can be better guaranteed.
Drawings
The utility model discloses there is following figure:
fig. 1 is a view of a plurality of mica commutator bars of the present invention arranged circumferentially;
FIG. 2 is a lateral side view of the copper row of the cloudless commutator shown in FIG. 1;
fig. 3 is a left side view of fig. 2.
Detailed Description
As shown in the figure, the utility model discloses a no mica commutator copper bar comprises lamellar body 1 and the fixed foot 2 of connecting in the lamellar body medial surface, the right flank intermediate position of lamellar body 1 is equipped with unilateral punctiform arch 11, and the length direction that sets up direction and lamellar body 1 of punctiform arch 11 is the same, and punctiform arch 11 makes when many commutator copper bars do the circumference range, and the punctiform of the commutator copper bar on the left side is protruding and the seamless counterbalance of the left surface of the commutator copper bar on the right (see fig. 1), lamellar body 1 sets up the right flank of punctiform arch 11, is equipped with breach groove 13 at the position of shaping copper bar crotch, lamellar body 1 is equipped with triangle breach 12 in the both sides of root position in order to form the little dovetail structure of falling of lamellar body 1.
Claims (3)
1. There is not mica commutator copper bar, by the lamellar body with connect in the fixed foot of lamellar body medial surface and constitute its characterized in that: the middle position of the right side surface of the sheet body is provided with a single-side point-shaped bulge, the arrangement direction of the point-shaped bulge is the same as the length direction of the sheet body, and when a plurality of commutator copper rows are arranged in a circumferential mode through the point-shaped bulge, the point-shaped bulge of the left commutator copper row is in seamless contact with the left side surface of the right commutator copper row.
2. The cloudless commutator bar of copper of claim 1, wherein: the sheet body is provided with a right side surface protruding in a dot shape, and a notch groove is formed in the position where the copper bar hook is formed.
3. The mica-free commutator copper bar of claim 1, wherein: the lamellar body is equipped with the little forked tail structure of falling of triangle breach in order to form the lamellar body in the both sides of root position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120234113.3U CN214044267U (en) | 2021-01-28 | 2021-01-28 | Mica-free commutator copper bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120234113.3U CN214044267U (en) | 2021-01-28 | 2021-01-28 | Mica-free commutator copper bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214044267U true CN214044267U (en) | 2021-08-24 |
Family
ID=77348343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120234113.3U Active CN214044267U (en) | 2021-01-28 | 2021-01-28 | Mica-free commutator copper bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214044267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284817A (en) * | 2021-12-28 | 2022-04-05 | 安徽龙磁精密器件有限公司 | Commutator segment ring structure without mica sheet |
-
2021
- 2021-01-28 CN CN202120234113.3U patent/CN214044267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284817A (en) * | 2021-12-28 | 2022-04-05 | 安徽龙磁精密器件有限公司 | Commutator segment ring structure without mica sheet |
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