CN203826739U - Brazed commutator - Google Patents
Brazed commutator Download PDFInfo
- Publication number
- CN203826739U CN203826739U CN201420115597.XU CN201420115597U CN203826739U CN 203826739 U CN203826739 U CN 203826739U CN 201420115597 U CN201420115597 U CN 201420115597U CN 203826739 U CN203826739 U CN 203826739U
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- CN
- China
- Prior art keywords
- commutator
- soldering
- brazed
- commutator segment
- arc
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a brazed commutator. The brazed commutator includes a molding filler, commutator segments and mica sheets, wherein the commutator segments are uniformly distributed at the outer circumference of the molding filler, and the mica sheets are arranged between the commutator segments. The brazed commutator is characterized in that the outer circumferential surfaces of the commutator segments enclose a cylindrical body of which the upper edge and the lower edge are equal; and an arc-shaped shallow groove used for brazing is formed at the upper section of the outer circumferential surface of each commutator segment along an axial direction. According to the brazed commutator of the utility model, the characteristics of brazing are utilized, and the arc-shaped shallow grooves are only needed to be formed in the commutator segments, so that requirements of welding of the commutator segments and metal wires can be satisfied, and cost can be decreased; and optimized designs of fixing pins of the commutator segments and the structure of the molding filler are utilized, so that the mechanical strength of the product can be improved. Thus, the brazed commutator of the utility model has the advantages of low cost, high mechanical strength and high quality.
Description
Technical field
The utility model relates to a kind of commutator, what be specifically related to is a kind of soldering commutator that utilizes soldering tech design.
Background technology
The application of commutator on electric tool is very extensive, commutator its every commutator segment after installation all needs to complete and be welded to connect between plain conductor, be subject to the impact of the factor such as solder technology and welding equipment, the welding manner adopting is at present generally spot welding, spot welding temperature is high, for preventing distortion, so the welding position that commutator segment and plain conductor implement to be welded to connect all needs there is thicker material requirements, so can cause to a great extent commutator segment material usage large, commutator cost is high; Also because design in the structure of commutator segment fixing feet and moulding filler is not the most reasonable, the mechanical strength of commutator and product quality can not get further lifting simultaneously.
Summary of the invention
In view of the deficiencies in the prior art, the technical problems to be solved in the utility model is to be to provide that a kind of cost is low, mechanical strength is high, the soldering commutator of good product quality.
The utility model takes following technical scheme to complete:
A kind of soldering commutator, comprise moulding filler, commutator segment and mica sheet, commutator segment is evenly laid at the excircle of moulding filler, described mica sheet is laid between the sheet of commutator segment, it is characterized in that: the periphery of all commutator segments surrounds the cylindrical body of inferior circle jointly, the epimere part of the periphery of commutator segment is in axial direction offered the arc-shaped shallow slot for soldering.The degree of depth of arc-shaped shallow slot is not more than 1.5mm.
Owing to adopting soldering tech, the heating-up temperature of soldering is low, so the welding position that commutator segment and plain conductor are implemented to be welded to connect is without the need for thicker material requirements, on commutator segment, design arc-shaped shallow slot and get final product the fine meeting the demands (filling of solder when arc-shaped shallow slot had both been beneficial to soldering, also be convenient to the enforcement of soldering), thereby reduce the material usage of commutator segment, reduced the cost of manufacture of commutator.
In addition, the utility model has also adopted following technical scheme: the fixing feet that the inner headed face of commutator segment is provided with Intermediate Gray dovetail groove is combined with moulding filler, the upper and lower side of fixing feet is provided with rectangular channel, places reinforcing ring in rectangular channel, and fixing feet is also provided with circular hole slot between rectangular channel and dovetail groove.The lower surface of moulding filler has annular projection structure at outer circular edge place.
Adopt after technique scheme, adhesion between commutator segment fixing feet and moulding filler can be stronger, reducing under the prerequisite of filler materials simultaneously, increase on the contrary the bond strength between commutator segment bottom and filler, this has just improved product mechanical strength to a certain extent, makes the better quality of commutator product.
Brief description of the drawings
Utility model has following accompanying drawing:
Fig. 1 is the directional diagram of overlooking of the present utility model;
Fig. 2 is the axial cutaway view of Fig. 1.
Embodiment
As shown in the figure, the soldering commutator of utility model, comprise moulding filler 4, commutator segment 1 and mica sheet 3, commutator segment 1 is evenly laid at the excircle of moulding filler 4, described mica sheet 3 is laid between the sheet of commutator segment 1, the periphery of all commutator segments 1 surrounds the cylindrical body of inferior circle jointly, the epimere part of the periphery of commutator segment 1 is in axial direction offered the arc-shaped shallow slot 2 for soldering, the degree of depth of arc-shaped shallow slot 2 is not more than 1.5mm, the inner headed face of commutator segment 1 is provided with the fixing feet 6 and 4 combinations of moulding filler of Intermediate Gray dovetail groove 5, the upper and lower side of fixing feet 6 is provided with rectangular channel 8, the interior placement reinforcing ring of rectangular channel 8, fixing feet 6 is also provided with circular hole slot 7 between rectangular channel 8 and dovetail groove 5, the lower surface of moulding filler 4 has annular projection structure 9 at outer circular edge place, to increase the bond strength between filler 4 and commutator segment 1 bottom.
Claims (4)
1. a soldering commutator, comprise moulding filler, commutator segment and mica sheet, commutator segment is evenly laid at the excircle of moulding filler, described mica sheet is laid between the sheet of commutator segment, it is characterized in that: the periphery of all commutator segments surrounds the cylindrical body of inferior circle jointly, the epimere part of the periphery of commutator segment is in axial direction offered the arc-shaped shallow slot for soldering.
2. a kind of soldering commutator according to claim 1, is characterized in that: the degree of depth of arc-shaped shallow slot is not more than 1.5mm.
3. a kind of soldering commutator according to claim 1, it is characterized in that: the fixing feet that the inner headed face of commutator segment is provided with Intermediate Gray dovetail groove is combined with moulding filler, the upper and lower side of fixing feet is provided with rectangular channel, in rectangular channel, place reinforcing ring, fixing feet is also provided with circular hole slot between rectangular channel and dovetail groove.
4. a kind of soldering commutator according to claim 1, is characterized in that: the lower surface of moulding filler has annular projection structure at outer circular edge place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115597.XU CN203826739U (en) | 2014-03-14 | 2014-03-14 | Brazed commutator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420115597.XU CN203826739U (en) | 2014-03-14 | 2014-03-14 | Brazed commutator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203826739U true CN203826739U (en) | 2014-09-10 |
Family
ID=51482204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420115597.XU Expired - Fee Related CN203826739U (en) | 2014-03-14 | 2014-03-14 | Brazed commutator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203826739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113328311A (en) * | 2021-04-08 | 2021-08-31 | 浙江利丰电器股份有限公司 | High-strength groove-shaped commutator |
-
2014
- 2014-03-14 CN CN201420115597.XU patent/CN203826739U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113328311A (en) * | 2021-04-08 | 2021-08-31 | 浙江利丰电器股份有限公司 | High-strength groove-shaped commutator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20160314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |