CN2334087Y - Primary terminal of high-voltage current transformer - Google Patents
Primary terminal of high-voltage current transformer Download PDFInfo
- Publication number
- CN2334087Y CN2334087Y CN 98211479 CN98211479U CN2334087Y CN 2334087 Y CN2334087 Y CN 2334087Y CN 98211479 CN98211479 CN 98211479 CN 98211479 U CN98211479 U CN 98211479U CN 2334087 Y CN2334087 Y CN 2334087Y
- Authority
- CN
- China
- Prior art keywords
- connecting hole
- conducting rod
- shaft part
- busbar
- terminal
- 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 - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model discloses a primary terminal that high tension current transformer used, it comprises conducting rod and conductive row, and the shaft part on the conducting rod adopts interference fit with the connecting hole on the conductive row to be connected, has one between connecting hole and shaft part to consolidate the conducting rod and lead the enhancement device on the conductive row to solved the easy oil leak that current primary terminal exists, tensile torsional strength is low, and the preparation dimension is big, the low scheduling problem of production efficiency.
Description
The utility model relates to the link that a kind of high-tension current inductor is used, especially a kind of terminal of high-tension current inductor that comprises busbar and conducting rod.
Common high-tension current inductor is connected with external lead wire by a coupled terminal, because high-tension current inductor is an oil immersed type, thereby the conducting rod of its terminal is immersed in the fluid, and the busbar that links to each other with conducting rod is exposed to extraneous space.This terminal is for satisfying instructions for use, should make to be connected between conducting rod and the busbar to have higher sealing property and tension torsional strength, and prior art is to adopt screw threads for fastening and add wind weldering connected mode.There is following problem in terminal of this class in making or using: have the gap between the screw thread of connection, the sectional area that electrical conduction current is flowed through greatly reduces, and ampacity is restricted; Welding makes the material variation of commissure, and the tension torsional strength descends, and welding also can produce pore, poor air-tightness easily produces oil leakage phenomenon, thereby makes the decrease in yield of product, in addition, busbar that pure copper material is made and conducting rod, its intensity that is threaded is low, when high wind is given a violent shake to the external lead wire that is connected on busbar or the conducting rod, by the power transmission, easily make between busbar and conducting rod be connected loosening, the air-tightness variation, the tension torsional strength descends.
For this reason, the purpose of this utility model provides the bonding strength height between a kind of busbar and the conducting rod, terminal of high-tension current inductor that air-tightness is good.
The utility model improves the structure of an above-mentioned terminal, connecting hole on shaft part on the described conducting rod and the busbar adopts interference fit to be connected, and establishes one with the stiffening device of conducting rod strong bonded on busbar between this shaft part and connecting hole.
Above-mentioned stiffening device comprises that an expansion slotted eye that links to each other with connecting hole and one its end after shaft part is pressed into connecting hole forms with the expansion groove matches and pricks tenon.
Above-mentioned stiffening device also can have chamfering on the connecting hole aperture, and there is the caulking part that can contact with chamfering the shaft part end after this shaft part is pressed into connecting hole.
Because the shaft part on the conducting rod adopts interference fit to be connected with the connecting hole of busbar, its contact-making surface is consolidation, basic tight very, and air-tightness improves, and oil leakage phenomenon can not take place, and conduction current-carrying area is guaranteed; Interference fit produces the shaft part surface of the hole surface of busbar of fine copper matter and conducting rod and stings mutually, thereby its tension, torsional strength is between the two improved; Simultaneously, by a stiffening device, make busbar more firm again, further improve air-tightness and mechanical strength with combining of conducting rod.In addition, the assembling of this terminal can be finished by moulds of industrial equipment and high pressure machine, and quality can be guaranteed, and the percentage of A-class goods and production efficiency all are significantly improved.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structure sectional side elevation of terminal first embodiment of the utility model high-tension current inductor.
Fig. 2 is the structure sectional side elevation of the utility model second embodiment.
As shown in Figure 1, terminal of high-tension current inductor comprises a busbar 1 and a conducting rod 7, and they adopt pure copper material, as T
2Make.There is a cylindrical connection blind hole 4 to be used to be connected the pile crown hole 8 of lead-in wire on the busbar 1 with several, there are connecting thread 6 and its external diameter to be slightly larger than the shaft part 5 of connecting hole on the conducting rod, after shaft part was pressed into connecting hole 4, the interference fit that forms shaft part 5 and connecting hole 4 was connected.Between connecting hole 4 and shaft part 5, be provided with one with the stiffening device of conducting rod strong bonded on busbar.This stiffening device has an expansion circumference slotted eye 2 that links to each other with connecting hole 4 and one after shaft part is pressed into connecting hole 4, and its end produces plastic deformation, forms with expansion circumference slotted eye matches and pricks tenon 3.
Because axle head is that interference fit is connected with connecting hole, and comprise the stiffening device of pricking tenon with one, thereby the tension torsional strength improves obviously between conducting rod and the busbar, air-tightness is fine.Sample is through test, and every performance all can reach (national standard) instructions for use.
Certainly above-mentioned stiffening device also can have a chamfering 9 on connecting hole 4 apertures, and there is after this shaft part is pressed into connecting hole 4 caulking part 10 that can closely contact with chamfering shaft part 5 ends, as shown in Figure 2.
The utility model is not limited to the foregoing description, and a terminal of all similar structures all belongs to the protection range of utility model.
Claims (3)
1, a kind of terminal of high-tension current inductor that comprises conducting rod and busbar is characterized in that the connecting hole on shaft part and the busbar on the conducting rod adopts interference fit to be connected; Between connecting hole and shaft part, there is one conducting rod is cemented in stiffening device on the busbar.
2, terminal of high-tension current inductor according to claim 1 is characterized in that stiffening device comprises that an expansion slotted eye that links to each other with connecting hole and one its end after shaft part is pressed into connecting hole forms with the expansion slotted eye matches and pricks tenon.
3, terminal of high-tension current inductor according to claim 1 is characterized in that stiffening device has a chamfering on the connecting hole aperture, and there is the caulking part that can contact with chamfering the shaft part end after this shaft part is pressed into connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98211479 CN2334087Y (en) | 1998-04-25 | 1998-04-25 | Primary terminal of high-voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98211479 CN2334087Y (en) | 1998-04-25 | 1998-04-25 | Primary terminal of high-voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2334087Y true CN2334087Y (en) | 1999-08-18 |
Family
ID=33966117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98211479 Expired - Lifetime CN2334087Y (en) | 1998-04-25 | 1998-04-25 | Primary terminal of high-voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2334087Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074336A (en) * | 2010-12-09 | 2011-05-25 | 天津市百利纽泰克电气科技有限公司 | Heavy-current non-boss primary conductor of transformer |
| CN103187150A (en) * | 2013-01-31 | 2013-07-03 | 浙江天际互感器有限公司 | Primary wiring terminal of high-voltage current transformer and installation method of primary wiring terminal |
| WO2014169674A1 (en) * | 2013-04-16 | 2014-10-23 | 浙江天际互感器有限公司 | Primary wiring terminal of high-voltage current transformer, and installation method for primary wiring terminal |
| CN106057286A (en) * | 2015-04-08 | 2016-10-26 | 江苏海达电气有限公司 | High-performance conducting rod |
-
1998
- 1998-04-25 CN CN 98211479 patent/CN2334087Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074336A (en) * | 2010-12-09 | 2011-05-25 | 天津市百利纽泰克电气科技有限公司 | Heavy-current non-boss primary conductor of transformer |
| CN102074336B (en) * | 2010-12-09 | 2012-08-22 | 天津市百利纽泰克电气科技有限公司 | Heavy-current non-boss primary conductor of transformer |
| CN103187150A (en) * | 2013-01-31 | 2013-07-03 | 浙江天际互感器有限公司 | Primary wiring terminal of high-voltage current transformer and installation method of primary wiring terminal |
| CN103187150B (en) * | 2013-01-31 | 2016-06-22 | 浙江天际互感器有限公司 | The primary connection terminal of high-tension current inductor and installation method thereof |
| WO2014169674A1 (en) * | 2013-04-16 | 2014-10-23 | 浙江天际互感器有限公司 | Primary wiring terminal of high-voltage current transformer, and installation method for primary wiring terminal |
| CN106057286A (en) * | 2015-04-08 | 2016-10-26 | 江苏海达电气有限公司 | High-performance conducting rod |
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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 | ||
| CX01 | Expiry of patent term |