CN210224541U - Hook-type commutator copper sheet - Google Patents
Hook-type commutator copper sheet Download PDFInfo
- Publication number
- CN210224541U CN210224541U CN201921086841.3U CN201921086841U CN210224541U CN 210224541 U CN210224541 U CN 210224541U CN 201921086841 U CN201921086841 U CN 201921086841U CN 210224541 U CN210224541 U CN 210224541U
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- hook
- body part
- copper sheet
- commutator
- main
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Abstract
The utility model discloses a hook commutator copper sheet draws the copper product punching by the shaping and forms, including main leaf body part, crotch part and fixed foot part, the medial surface of main leaf body part is located to fixed foot part, and the crotch part is located the top of main leaf body part, its characterized in that: the left side surface or the right side surface or the left side surface and the right side surface of the hook part are provided with a line groove recess at the middle position. The utility model discloses can guarantee the bonding wire quality of crotch part, simultaneously can with the commutator between the bakelite powder base member more firmly be connected to ensure that the bottom of bakelite powder base member does not ftracture, and then promote the mechanical properties and the whole quality of commutator product.
Description
Technical Field
The utility model relates to a commutator, concretely relates to switching-over copper sheet of hook-type commutator.
Background
Traditional hook-type commutator is drawn the copper product by the shaping and is punched and form, including main slice body part, crotch part and fixed foot part, the medial surface of main slice body part is located to fixed foot part, and the crotch part is located the top of main slice body part. The defects of the method are as follows: when the hook part is connected with the enameled wire in a spot welding manner, the enameled wire is easy to slide on the hook, so that the quality of the welding wire is poor; the connection between the commutation copper sheet and the bakelite powder substrate is generally realized only through the binding force between the fixing pins and the bakelite powder, and is difficult to improve again, so that the mechanical property of a commutator product is improved disadvantageously; the distance between the bottom end face of the bakelite powder substrate and the bottom of the main sheet body is very close, so that the thickness of the bakelite powder substrate at the bottom of the main sheet body is very thin, and the generated high temperature easily enables the bakelite powder substrate at the position to crack when the commutator works, thereby affecting the overall quality of the commutator.
Disclosure of Invention
The utility model aims at providing a can guarantee the bonding wire quality of crotch part, simultaneously can with carry out more firm connection between the bakelite powder base member of commutator to ensure that the bottom of bakelite powder base member does not ftracture, and then promote the hook-type commutator copper sheet of commutator product mechanical properties and overall quality.
The utility model adopts the following technical proposal to complete:
hook-type commutator copper sheet is drawn the copper product by the shaping and is dashed and make and form, including main slice body part, crotch part and fixed foot part, the medial surface of main slice body part is located to fixed foot part, and the crotch part is located the top of main slice body part, its characterized in that: the left side surface or the right side surface or the left side surface and the right side surface of the hook part are provided with a line groove recess at the middle position.
The wire groove is recessed into a circular arc shape.
And the top of the main sheet body part is provided with an inclined plane above the fixing foot part to form a half dovetail groove structure.
The bottom of the main sheet body part is provided with a V-shaped groove.
According to the hook-type commutator copper sheet adopting the technical scheme, the slot recess is formed in the side face of the hook part, so that the position sliding of the enameled wire on the hook can be effectively avoided, and the quality of the welded wire is better ensured when the hook part is connected with the enameled wire in a spot welding manner; secondly, a half dovetail groove structure is arranged above the fixing foot part, and the half dovetail groove plays a role of enhancing the binding force with the bakelite powder substrate as same as the fixing foot, so that the mechanical property of a commutator product can be improved; in addition, the V-shaped groove at the bottom of the main sheet body part is formed, so that the bakelite powder substrate can be filled into the V-shaped groove when the commutator is subjected to injection molding, the bottom end face of the bakelite powder substrate is equivalent to the effect of a reinforcing rib, the bakelite powder substrate at the bottom of the main sheet body can be effectively prevented from cracking, and the overall quality of the commutator is ensured.
Drawings
The utility model discloses there is following figure:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a right side view of the FIG. 1;
fig. 3 is a top view of the fig. 1.
Detailed Description
As shown in the figure, the utility model discloses a hook commutator copper sheet draws the copper product punching by the shaping and forms, including main leaf body part 1, crotch part 2 and fixed foot part 3, the medial surface of main leaf body part 1 is located to fixed foot part 3, and crotch part 2 is located main leaf body part 1's top, and the left surface of crotch part 2 is equipped with wire casing concave yield 4 at the intermediate position, and wire casing concave yield 4 is the arc shape. The top of main leaf body part 1 is equipped with inclined plane formation half dovetail structure 5 in the upper position of fixed foot part 3 to the cohesion between hook-shaped commutator copper sheet and the bakelite powder base member during reinforcing injection moulding, the bottom of main leaf body part 1 is equipped with V-arrangement groove 6, produces the fracture with the bakelite powder base member of main leaf body bottom behind the prevention injection moulding.
Claims (4)
1. Hook-type commutator copper sheet is drawn the copper product by the shaping and is dashed and make and form, including main slice body part, crotch part and fixed foot part, the medial surface of main slice body part is located to fixed foot part, and the crotch part is located the top of main slice body part, its characterized in that: the left side surface or the right side surface or the left side surface and the right side surface of the hook part are provided with a line groove recess at the middle position.
2. The hook commutator copper sheet according to claim 1, wherein: the wire groove is recessed into a circular arc shape.
3. The hook commutator copper sheet according to claim 1, wherein: and the top of the main sheet body part is provided with an inclined plane above the fixing foot part to form a half dovetail groove structure.
4. The hook commutator copper sheet according to claim 1, wherein: the bottom of the main sheet body part is provided with a V-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086841.3U CN210224541U (en) | 2019-07-12 | 2019-07-12 | Hook-type commutator copper sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921086841.3U CN210224541U (en) | 2019-07-12 | 2019-07-12 | Hook-type commutator copper sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210224541U true CN210224541U (en) | 2020-03-31 |
Family
ID=69937186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921086841.3U Active CN210224541U (en) | 2019-07-12 | 2019-07-12 | Hook-type commutator copper sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210224541U (en) |
-
2019
- 2019-07-12 CN CN201921086841.3U patent/CN210224541U/en active Active
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Legal Events
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| GR01 | Patent grant |