CN204130363U - A kind of copper contact arm - Google Patents
A kind of copper contact arm Download PDFInfo
- Publication number
- CN204130363U CN204130363U CN201420612306.8U CN201420612306U CN204130363U CN 204130363 U CN204130363 U CN 204130363U CN 201420612306 U CN201420612306 U CN 201420612306U CN 204130363 U CN204130363 U CN 204130363U
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- CN
- China
- Prior art keywords
- contact arm
- copper contact
- copper
- utility
- model
- 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 kind of copper contact arm, copper contact arm adopts that blank material is external diameter 50mm, the copper pipe processing of internal diameter 34mm forms, and the external cylindrical surface of copper contact arm has cut two cannelures, and the tail end of copper contact arm is provided with rounding, and the size of described fillet is 0.5mm.The utility model copper contact arm solves the technological deficiency that in prior art, copper contact arm cost of manufacture is high.
Description
Technical field
The utility model relates to a kind of parts on electric equipment, especially a kind of copper contact arm.
Background technology
As depicted in figs. 1 and 2, the 1250A copper contact arm 10(mouth notch portion T2Y used in the market, long 35mm, remainder 1050A, adopt friction welding) be all adopt endoporus to be the straight hole of φ 20, blank material adopts φ 52(external diameter) copper pipe of X φ 19.6 (internal diameter), this contour structures wastes material very much, product net weight reaches 2.019kg, adds manufacturing cost.The sectional area contacted at mouth mouth 3 place due to copper contact arm 10 and contact 4 is minimum, and when designing copper contact arm contour structures, as long as enough by force intensity, the sectional area at any position of copper contact arm is greater than the sectional area of mouth mouth 3 contact site.
Utility model content
Technical problem to be solved in the utility model is: provide one to have cost low, the copper contact arm that intensity is large.
The utility model solves the technical scheme that its technical problem adopts: a kind of copper contact arm, described copper contact arm employing blank material is external diameter 50mm, the copper pipe processing of internal diameter 34mm forms, the external cylindrical surface of described copper contact arm has cut two cannelures, the tail end of described copper contact arm is provided with rounding, and the size of described fillet is 0.5mm.
The beneficial effects of the utility model are: the external cylindrical surface of the utility model copper contact arm has cut two large annular grooves, saves copper material to greatest extent, and reduce cost of manufacture, copper contact arm tail end fillet is only 0.5mm, effectively increases effective contact area of bottom end face.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of copper contact arm in prior art;
Fig. 2 is the connection diagram of contact and copper contact arm mouth mouth in prior art;
Fig. 3 is the structural representation of the utility model copper contact arm;
Embodiment
Below in conjunction with accompanying drawing, the utility model will be further described, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 3, the utility model copper contact arm 20 adopts that blank material is external diameter 50mm, the copper pipe processing of internal diameter 34mm forms, when ensureing that the contour structures at copper contact arm mouth mouth 3 position is constant, by strengthening diameter of bore, take on the external cylindrical surface of copper contact arm 20, cut the method for digging two annular grooves 1, save copper material to greatest extent, reduce the cost of manufacture of copper contact arm, the tail end 2 of described copper contact arm is provided with rounding, the size of described fillet is 0.5mm, effectively increases effective contact area of bottom end face.Blank material adopts the copper pipe of external diameter 50mm, internal diameter 34mm, after cold-extrusion technology, mouth mouth end extrudes an internal diameter is 20 circular holes, then forms the utility model 1250A copper contact arm shown in Fig. 3 through turning, and product net weight only has 1.037kg, save material widely, reduce manufacturing cost.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: the processing method of this practicality copper contact arm is also applicable to aluminium contact arm or copper aluminium contact arm, and this simple replacement or amendment do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (1)
1. a copper contact arm, it is characterized in that: described copper contact arm employing blank material is external diameter 50mm, the copper pipe processing of internal diameter 34mm forms, the external cylindrical surface of described copper contact arm has cut two cannelures, and the tail end of described copper contact arm is provided with rounding, and the size of described fillet is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612306.8U CN204130363U (en) | 2014-10-22 | 2014-10-22 | A kind of copper contact arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420612306.8U CN204130363U (en) | 2014-10-22 | 2014-10-22 | A kind of copper contact arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204130363U true CN204130363U (en) | 2015-01-28 |
Family
ID=52386694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420612306.8U Expired - Fee Related CN204130363U (en) | 2014-10-22 | 2014-10-22 | A kind of copper contact arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204130363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244196A (en) * | 2015-09-29 | 2016-01-13 | 厦门华泰利机电有限公司 | Contact arm structure |
-
2014
- 2014-10-22 CN CN201420612306.8U patent/CN204130363U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244196A (en) * | 2015-09-29 | 2016-01-13 | 厦门华泰利机电有限公司 | Contact arm structure |
| CN105244196B (en) * | 2015-09-29 | 2018-06-26 | 厦门华泰利机电有限公司 | A kind of contact arm structure |
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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: 20150128 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |