CN201717414U - Pin of power plug - Google Patents
Pin of power plug Download PDFInfo
- Publication number
- CN201717414U CN201717414U CN201020236369XU CN201020236369U CN201717414U CN 201717414 U CN201717414 U CN 201717414U CN 201020236369X U CN201020236369X U CN 201020236369XU CN 201020236369 U CN201020236369 U CN 201020236369U CN 201717414 U CN201717414 U CN 201717414U
- Authority
- CN
- China
- Prior art keywords
- shell
- inner core
- pin
- head
- attaching plug
- 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 pin of a power plug, which comprises an outer shell and an inner core. The inner core is arranged in the outer shell, and is in clearance fit with the outer shell, the outer shell is made of copper alloy, and the inner core is made of aluminum alloy. After the structure is adopted, the pin of the power plug has good electric conduction and light weight, and can reduce the consumption of copper, thus lowering production cost.
Description
Technical field
The utility model discloses a kind of pin of attaching plug, is a kind of power supply contact element.
Background technology
The round pin of at present domestic and international attaching plug, generally all adopt copper alloy as the conducting metal section bar, be made through manufacturing procedures such as cutting, car system, tappings, the pin entire body adopts solid copper alloy as conductive material, it comprise the head 1 that is used for being inserted into socket aperture ' with the afterbody 2 that is used for being connected with lead in the attaching plug ', as shown in Figure 1.The problem that present round pin mainly exists is: because of copper alloy price comparison costliness, if the pin entire body all is solid, the copper of consumption is more, and the production cost of pin is improved.The stock number of copper is limited in addition, and people are also seeking the better product of consumption, performance that can reduce copper and replacing solid pin, and this has become the general research object of industry, and this case also produces thus.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of and conducts electricity very well, in light weight, can reduce the consumption of copper, thus the pin of the attaching plug that reduces production costs.
The technical scheme that its technical problem that will solve the utility model adopts is:
A kind of pin of attaching plug comprises shell, inner core, and this inner core is located in the shell, and with the shell interference fit together, described shell adopts copper alloy to make, inner core adopts aluminium alloy to make.Above-mentioned setting can reduce the use of copper in a large number, reduces production costs.
The utility model further is set to:
Described inner core is divided into head, afterbody, and this head puts in the shell, and with the shell interference fit, afterbody is exposed outside, and is provided with screw thread in the above, and the setting of screw thread is convenient to be connected with lead in the attaching plug.
The value of interference fit of described shell and interior core head is 0.008～0.015mm, cooperates fastening to guarantee shell with interior core head; The coefficient of linear expansion of inner core is equal to or greater than the coefficient of linear expansion of shell, can guarantee in variations in temperature, and shell and inner core still can secure fit.
Head side at inner core is axially arranged with an air discharge duct along it, and the setting of air discharge duct can be discharged the air of enclosure when inner core and shell are equipped, is convenient to install.
One end of described shell is spherical, and the other end is a broadening formation, and spherical setting is convenient to pin and is entered smoothly in the socket aperture, and core head entered in the shell smoothly in the setting of broadening formation was convenient to.
After adopting said structure, compared with prior art, the utlity model has following advantage:
1, the inner core close-fitting made of the shell made by copper alloy of the utility model and aluminium alloy forms, reduced the use of copper alloy, reduced the consumption of copper, and the aluminium in the aluminium alloy is a kind of aboundresources, cheap metal, be a kind of ideal material of instead of copper alloy, its production cost can obviously reduce.
2, the density of the used aluminum alloy material of the utility model inner core is low more than copper alloy, and the density of copper alloy is generally at 8g/cm
3More than, and the density of aluminium alloy is generally less than 2.8g/cm
3, therefore weight of the present utility model is lighter.
3, the resistivity of aluminium alloy is starkly lower than copper alloy, as the pin of prior art with copper alloy resistivity more than 60n Ω m, and about the general 30n Ω of the resistivity of aluminium alloy m, therefore conductive capability of the present utility model is higher than prior art, is suitable for the attaching plug than high-power electric appliance.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of prior art pin;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the structural representation of the utility model pin shell;
Fig. 4 is the structural representation of the utility model pin inner core;
Fig. 5 is the left view of Fig. 4.
Embodiment
As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, a kind of pin of attaching plug comprises shell 1, inner core 2, and inner core 2 is located in the shell 1.Described shell 1 is cylindric, and the one end is spherical 11 for sealing, and the other end is a broadening formation 12, and the wall thickness of shell 1 can be controlled in about 0.4mm, and adopts copper alloy (H68) to make; Described inner core 2 is divided into head 3, afterbody 4, adopt aluminium alloy (LD31CS) to make, this head 3 also is cylindric, can put in the shell 1 from broadening formation, with shell 1 interference fit, afterbody 4 is exposed outside, and is provided with screw thread 5 in the above, and the setting of screw thread 5 is convenient to be connected with lead in the attaching plug.
Described shell 1 is 0.008～0.015mm with the value of interference fit of inner core 2 heads 3, that is to say the inner core head diameter than the big 0.008～0.015mm of internal diameter of outer cover, cooperates fastening to guarantee shell 1 with inner core 2 heads 3; The coefficient of linear expansion of inner core 2 is equal to or greater than the coefficient of linear expansion of shell 1, can guarantee in variations in temperature, and shell 1 still can secure fit with inner core 2.Head 3 sides at inner core 2 axially also are provided with an air discharge duct 6 along it, and the setting of this air discharge duct 6 can be discharged the air of shell 1 inside when inner core 2 is equipped with shell 1, is convenient to install.
When the head 3 of the utility model shell 1 and inner core 2 is equipped with, in the time of can earlier shell 1 evenly being heated to 150 ℃ of left and right sides, to be inserted into the inside of shell 1 through the head 3 of the inner core 2 of surface degreasing and oxide layer rapidly from broadening formation again, treat that shell 1 temperature cooling and inner core 2 are approaching when consistent, shell 1 cold contraction makes it tightly to be combined together with inner core 2, forms the pin of one.
Claims (5)
1. the pin of an attaching plug, it is characterized in that: comprise shell (1), inner core (2), this inner core (2) is located in the shell (1), and with shell (1) interference fit together, described shell (1) adopts copper alloy to make, inner core (2) adopts aluminium alloy to make.
2. the pin of attaching plug according to claim 1, it is characterized in that: described inner core (2) is divided into head (3), afterbody (4), and this head (3) puts in the shell (1), with shell (1) interference fit, afterbody (4) is exposed outside, and is provided with screw thread (5) in the above.
3. the pin of attaching plug according to claim 1 and 2, it is characterized in that: described shell (1) is 0.008～0.015mm with the value of interference fit of inner core (2) head (3), and the coefficient of linear expansion of inner core (2) is equal to or greater than the coefficient of linear expansion of shell (1).
4. the pin of attaching plug according to claim 1 and 2, it is characterized in that: head (3) side in inner core (2) is axially arranged with an air discharge duct (6) along it.
5. the pin of attaching plug according to claim 1, it is characterized in that: an end of described shell (1) is spherical (11), the other end is broadening formation (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020236369XU CN201717414U (en) | 2010-06-25 | 2010-06-25 | Pin of power plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020236369XU CN201717414U (en) | 2010-06-25 | 2010-06-25 | Pin of power plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717414U true CN201717414U (en) | 2011-01-19 |
Family
ID=43463420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020236369XU Expired - Fee Related CN201717414U (en) | 2010-06-25 | 2010-06-25 | Pin of power plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717414U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617467A (en) * | 2015-02-05 | 2015-05-13 | 东莞市正好电器有限公司 | Process for manufacturing plug pin |
| CN106252910A (en) * | 2016-07-28 | 2016-12-21 | 中国科学院近代物理研究所 | High tension cable union joint and using method thereof |
| WO2020043231A1 (en) * | 2018-08-30 | 2020-03-05 | Harting Electric Gmbh & Co. Kg | Electrical connector with components of better material and little lead, preferably on the basis of copper |
-
2010
- 2010-06-25 CN CN201020236369XU patent/CN201717414U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617467A (en) * | 2015-02-05 | 2015-05-13 | 东莞市正好电器有限公司 | Process for manufacturing plug pin |
| CN104617467B (en) * | 2015-02-05 | 2018-05-25 | 东莞市正好电器有限公司 | Plug base pin manufacturing process |
| CN106252910A (en) * | 2016-07-28 | 2016-12-21 | 中国科学院近代物理研究所 | High tension cable union joint and using method thereof |
| WO2020043231A1 (en) * | 2018-08-30 | 2020-03-05 | Harting Electric Gmbh & Co. Kg | Electrical connector with components of better material and little lead, preferably on the basis of copper |
| US11476607B2 (en) | 2018-08-30 | 2022-10-18 | Harting Electric Stiftung & Co. Kg | Electrical connector with components of better material and little lead, preferably on the basis of copper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20130625 |