CN202172020U - Connecting structure of fixed contact and tapping line of non-excitation tapping switch - Google Patents
Connecting structure of fixed contact and tapping line of non-excitation tapping switch Download PDFInfo
- Publication number
- CN202172020U CN202172020U CN2011202512684U CN201120251268U CN202172020U CN 202172020 U CN202172020 U CN 202172020U CN 2011202512684 U CN2011202512684 U CN 2011202512684U CN 201120251268 U CN201120251268 U CN 201120251268U CN 202172020 U CN202172020 U CN 202172020U
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- contact
- line
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Abstract
The utility model relates to a connecting structure of a fixed contact and a tapping line of a non-excitation tapping switch, comprising a tapping line and a fixed contact, wherein the fixed contact is provided with a line embedding hole connected with the tapping line, one end of the tapping line is embedded into the line embedding hole, and the line embedding hole is connected with the tapping line of the fixed contact in a cold welding manner via extruding deformation. Beneficial effects of the connecting structure are that a cold welding structure is adopted for the tapping line, connection is reliable, high temperature oxidation phenomenon generated in a soldering structure and negative effects in electroplate processing are avoided, and surface quality and connection performance of the tapping line and the fixed contact are substantially improved; and processing operation is simplified, work efficiency is improved, and manufacturing cost for connecting the tapping line and the fixed contact is reduced.
Description
Technical field
The utility model relates to a kind of transformer is decided contact and line with off circuit tap changer syndeton.
Background technology
The deciding of existing off circuit tap changer decided the contact aperture scolder soldering of sunkening cord with the insertion of line termination and form radially being connected normally of contact and line; Because line is a copper stranded conductor; Copper stranded conductor part copper wire is blown when deciding contact and adopt the soldering connecting mode very easily to cause welding; Copperly decide contact also easy deformation, softening and oxidation at high temperature, and soldering to connect processing complex procedures manufacturing cost high.On the other hand, the high temperature that when soldering, produces can be uploaded through copper stranded conductor is past, thus the whole copper stranded conductor of oxidation; The black oxidation skin that produces is promptly not attractive in appearance, and extremely difficulty is cleaned out again, and the surface treatment of contact part is generally silver-plated; The difficult removing totally of the inner raffinate of wiring causes pig copper rust, if cleaning totally then can not produce certain influence to transformer when silver-plated; Even can produce suspension metal object pollution transformer, cause transformer to break down.
Summary of the invention
The technical problem to be solved of the utility model is the deficiency that exists to above-mentioned prior art and provides a kind of connection firm, no high-temperature oxydation, and the no excitation drum-shaped shunting switch that manufacturing procedure is easy is decided the syndeton of contact and line.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is:
Comprise line and decide contact, decide to offer on the contact sunken cord hole and line and link, it is characterized in that described line one end termination imbeds the hole of sunkening cord, through crimp sunken cord hole and the line of deciding contact are colded pressing and be connected into one.
Press such scheme, described line is the multiply copper stranded conductor, and diameter is φ 6-φ 40; Describedly decide contact and be block, process by copper material.
Press such scheme, the described hole of sunkening cord is cylindrical hole or conical bore, on the hole hole wall of sunkening cord lines or screw thread is set.
Press such scheme, described to decide contact be that circular arc is block, and arc surface is the contact contact-making surface, and the back side of arc surface is conjunction plane, is deciding to offer the hole of sunkening cord on the conjunction plane direction of contact.
Press such scheme, the described hole of sunkening cord is opened in the one or both ends of deciding the contact conjunction plane, is deciding also to be provided with the connection screw on the conjunction plane of contact.
Press such scheme, described colding pressing connects for carrying out cold extrusion deciding one or two side corresponding to the hole of sunkening cord of contact; Also can carry out cold extrusion deciding one or two end face of contact (upper surface or lower surface), be formed with one or more pits on the described cold-extruded pressure surface corresponding to the hole of sunkening cord.
The beneficial effect of the utility model is: 1, line adopts the cold weld structure; Not only connect reliable; And the negative effect when having avoided high-temperature oxydation phenomenon that existing braze-welded structure produces and electroplating processes, promoted line and surface quality and the switching performance of deciding contact significantly; 2, simplified manufacturing procedure, promoted work efficiency, can reduce line and decide the manufacturing cost that contact connects simultaneously.
Description of drawings
Fig. 1 is the main cutaway view of an embodiment of the utility model.
Fig. 2 is the B-B cutaway view among Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Embodiment
Further specify the embodiment of the utility model below in conjunction with accompanying drawing.
Fig. 1 to Fig. 3 is the syndeton that a no excitation drum-shaped shunting switch is decided contact and line, comprises line 1 and decides contact 2, and described line is a copper stranded conductor, and diameter is generally φ 6-φ 40; Described to decide contact be that circular arc is block, and arc surface is the contact contact-making surface, and the back side of arc surface is conjunction plane; Conjunction plane is generally flat face, offers the hole 3 of sunkening cord at the conjunction plane of deciding contact one end, and the described hole of sunkening cord is a cylindrical hole; Sunkening cord is provided with screw thread on the hole wall of hole, and an end termination of line is imbedded the hole of sunkening cord and tamped, and through crimp sunken cord hole and the line of deciding contact is colded pressing then and is connected into one; Described colding pressing connects for carrying out cold extrusion corresponding to two sides in the hole of sunkening cord deciding contact; When the line diameter is big, decide contact and carry out cold extrusion corresponding to the upper surface in the hole of sunkening cord, be formed with 1 or 2 pits 5 on the described cold-extruded pressure surface.In addition, connect screws 4 deciding also to be provided with on the conjunction plane of contact two, be used for deciding connecting of contact and switch insulation body.
Claims (8)
1. an off circuit tap changer is decided contact and line syndeton; Comprise line and decide contact; Deciding to offer on the contact sunken cord hole and line links; It is characterized in that described line one end termination imbeds the hole of sunkening cord, through crimp sunken cord hole and the line of deciding contact are colded pressing and be connected into one.
2. decide contact and line syndeton by the described off circuit tap changer of claim 1, it is characterized in that described line is a copper stranded conductor, diameter is φ 6-φ 40; Describedly decide contact and be block, process by copper material.
3. decide contact and line syndeton by claim 1 or 2 described off circuit tap changers, its characteristic is cylindrical hole or conical bore in the described hole of sunkening cord, and on the hole hole wall of sunkening cord lines or screw thread is set.
4. decide contact and line syndeton by claim 1 or 2 described off circuit tap changers; To decide contact be that circular arc is block to its characteristic described; Arc surface is the contact contact-making surface, and the back side of arc surface is conjunction plane, is deciding to offer the hole of sunkening cord on the conjunction plane of contact.
5. decide contact and line syndeton by the described off circuit tap changer of claim 4, its characteristic is opened in an end of deciding the contact conjunction plane in the described hole of sunkening cord, and is deciding also to be provided with the connection screw on the conjunction plane of contact.
6. decide contact and line syndeton by the described off circuit tap changer of claim 4, its characteristic is to carry out cold extrusion deciding one or two side corresponding to the hole of sunkening cord of contact in the described connection of colding pressing.
7. decide contact and line syndeton by the described off circuit tap changer of claim 6, its characteristic is being carried out cold extrusion deciding one or two end face corresponding to the hole of sunkening cord of contact.
8. decide contact and line syndeton by claim 6 or 7 described off circuit tap changers, its characteristic is formed with one or more pits on described cold-extruded pressure surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202512684U CN202172020U (en) | 2011-07-15 | 2011-07-15 | Connecting structure of fixed contact and tapping line of non-excitation tapping switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202512684U CN202172020U (en) | 2011-07-15 | 2011-07-15 | Connecting structure of fixed contact and tapping line of non-excitation tapping switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172020U true CN202172020U (en) | 2012-03-21 |
Family
ID=45830210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202512684U Expired - Fee Related CN202172020U (en) | 2011-07-15 | 2011-07-15 | Connecting structure of fixed contact and tapping line of non-excitation tapping switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172020U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306560A (en) * | 2011-07-15 | 2012-01-04 | 徐优燕 | Connecting structure of fixed contact and tapping line of no-excitation tapping switch |
| CN104269284A (en) * | 2014-09-20 | 2015-01-07 | 任宏宇 | Cable head connection method for tap switch |
-
2011
- 2011-07-15 CN CN2011202512684U patent/CN202172020U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102306560A (en) * | 2011-07-15 | 2012-01-04 | 徐优燕 | Connecting structure of fixed contact and tapping line of no-excitation tapping switch |
| CN102306560B (en) * | 2011-07-15 | 2013-12-25 | 徐优燕 | Connecting structure of fixed contact and tapping line of no-excitation tapping switch |
| CN104269284A (en) * | 2014-09-20 | 2015-01-07 | 任宏宇 | Cable head connection method for tap switch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20170715 |