CN201044203Y - Indoor epoxy resin pouring current mutual inductor - Google Patents
Indoor epoxy resin pouring current mutual inductor Download PDFInfo
- Publication number
- CN201044203Y CN201044203Y CNU2007201090655U CN200720109065U CN201044203Y CN 201044203 Y CN201044203 Y CN 201044203Y CN U2007201090655 U CNU2007201090655 U CN U2007201090655U CN 200720109065 U CN200720109065 U CN 200720109065U CN 201044203 Y CN201044203 Y CN 201044203Y
- Authority
- CN
- China
- Prior art keywords
- epoxy resin
- iron core
- poured
- lead
- secondary winding
- 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
Links
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 26
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- HBGPNLPABVUVKZ-POTXQNELSA-N (1r,3as,4s,5ar,5br,7r,7ar,11ar,11br,13as,13br)-4,7-dihydroxy-3a,5a,5b,8,8,11a-hexamethyl-1-prop-1-en-2-yl-2,3,4,5,6,7,7a,10,11,11b,12,13,13a,13b-tetradecahydro-1h-cyclopenta[a]chrysen-9-one Chemical compound C([C@@]12C)CC(=O)C(C)(C)[C@@H]1[C@H](O)C[C@]([C@]1(C)C[C@@H]3O)(C)[C@@H]2CC[C@H]1[C@@H]1[C@]3(C)CC[C@H]1C(=C)C HBGPNLPABVUVKZ-POTXQNELSA-N 0.000 claims description 3
- PFRGGOIBYLYVKM-UHFFFAOYSA-N 15alpha-hydroxylup-20(29)-en-3-one Natural products CC(=C)C1CCC2(C)CC(O)C3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 PFRGGOIBYLYVKM-UHFFFAOYSA-N 0.000 claims description 3
- SOKRNBGSNZXYIO-UHFFFAOYSA-N Resinone Natural products CC(=C)C1CCC2(C)C(O)CC3(C)C(CCC4C5(C)CCC(=O)C(C)(C)C5CCC34C)C12 SOKRNBGSNZXYIO-UHFFFAOYSA-N 0.000 claims description 3
- -1 secondary winding Chemical group 0.000 claims description 3
- 230000003373 anti-fouling effect Effects 0.000 abstract description 3
- 238000004080 punching Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model provides an indoor epoxy resin poured current transformer, which belongs to an indoor current and comprises an iron core and a secondary winding. The iron core is ring-shaped or square and the secondary winding is wound on the iron core. The utility model is characterized in that a primary coil is a lead which is lead out from a window in the middle of the iron core, the primary coil lead and the iron core as well as the secondary winding are poured into a whole unit with epoxy resin, a connecting terminal connected with the secondary winding is arranged at one side of the epoxy resin poured shell unit, the primary coil lead is connected with a primary connecting terminal arranged outside the shell unit; the primary connecting terminal is a conductive bar provided with connecting grooves; the lead of the primary coil can be copper bar. Because the primary coil lead and the iron core as well as the secondary are poured into a whole unit with epoxy resin, the primary coil lead poured by epoxy resin is isolated from the air and is not easy to be oxidized and improves the damp proof and antifouling capabilities.
Description
Technical field
The utility model relates to a kind of instrument transformer, refers more particularly to a kind of indoor current transformer
Background technology:
Present indoor current transformer uses many structures to be: comprise iron core, secondary winding, iron core is an annular or square, secondary winding is looped around on the iron core, iron core, secondary winding adopt the epoxy resin one-time cast-forming, the binding post that secondary winding is joined is positioned at housing one side of poured with epoxy resin, and there is the window of secondary winding wound core at the middle part of housing, is the punching structure, primary winding is the bus type, and the bus of measured circuit and the punching window by housing joins.This current transformer is owing to use punching bus type structure, and buses such as copper bar are worn around passing through the punching window, and bus exposes in the air outside, and oxidized easily, humidity resistance is poor.
The utility model content
The purpose of this utility model is the deficiency that overcomes prior art, and a kind of structure protection against the tide, indoor current transformer that antifouling property is good are provided.
The technical scheme that technical problem adopted that solves is: a kind of indoor poured with epoxy resin current transformer, comprise iron core, secondary winding, iron core is an annular or square, secondary winding is looped around on the iron core, it is characterized in that primary winding is a lead, lead is drawn by the window at iron core middle part, above-mentioned primary winding lead and iron core, secondary winding adopt the poured with epoxy resin one, the binding post that secondary winding is joined is positioned at housing one side of poured with epoxy resin, and the outer primary connection terminal of primary winding lead and housing joins; The primary connection terminal is the busbar that has connecting groove; The lead of above-mentioned primary winding can be a copper bar.
The beneficial effects of the utility model are: because primary winding lead and iron core, secondary winding adopt the poured with epoxy resin one, primary winding lead in the poured with epoxy resin and air are isolated, just are difficult for oxidizedly, have improved moistureproof, antifouling property.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the front view of the utility model embodiment;
Fig. 2 is the utility model embodiment vertical view.
Among the figure 1, housing 2, secondary winding binding post 3, primary connection copper bar 4, base plate 5, anti-electricity-theft cover 6, voltage terminal 7, copper bar installing hole 8, lead sealing screw are installed
Embodiment:
As shown in Figure 1, the current transformer of the utility model embodiment is the poured with epoxy resin full-closed structure, cored, the secondary winding in the inside of poured with epoxy resin, iron core is an annular or square, secondary winding is looped around on the iron core, and the primary winding lead is a copper bar, and copper bar is by the window at iron core middle part.There are secondary winding binding post 2, primary connection copper bar 3, voltage terminal 7 in housing 1 outside of poured with epoxy resin, base plate 4 is installed, and the secondary winding of the inside of secondary winding binding post 2 and poured with epoxy resin is joined; The inside primary winding lead copper bar of primary connection copper bar 3 and poured with epoxy resin joins, and primary connection copper bar 3 has copper bar installing hole 7; Voltage terminal 6 is drawn by the copper bar that is cast in inner primary winding, and voltage terminal 6 can cause electric energy meter to voltage signal.The secondary winding binding post 2 of pour mass upper side is provided with " S1 " " S2 ", two signs, and the voltage terminal 6 of pour mass upper side is provided with " U " sign.Housing 1 top at poured with epoxy resin is provided with anti-electricity-theft cover 5, anti-electricity-theft cover 5 usefulness lead sealing screws 8 are fixed on the housing 1, secondary winding binding post 2 and voltage terminal 6 are positioned at anti-electricity-theft cover 5, after anti-electricity-theft cover 5 usefulness lead sealing screws 8 are fixed, can prevent stealing on the one hand, prevent that on the other hand dust from amassing at secondary winding binding post 2 and voltage terminal 6.Be provided with base plate 4 in the lower end of housing 1, base plate 4 is provided with installing hole, and base plate 4 installing holes are used for the fixing, easy for installation of current transformer.
Because current transformer adopts the poured with epoxy resin full-closed structure, changed the structure of bus type straight-through current transformer in the past, its advantage is to improve the sealing property of current transformer housing, improves current transformer waterproof, humidity resistance, effectively guarantees product quality; This structure has increased creepage distance, has improved insulation property, has anti-electric arc, UV resistant, ageing-resistant, characteristics such as the life-span is long, has also just improved certainty of measurement and reliability.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from disclosed content of the present utility model all should be thought protection range of the present utility model.
Claims (3)
1. indoor poured with epoxy resin current transformer, comprise iron core, secondary winding, iron core is an annular or square, secondary winding is looped around on the iron core, it is characterized in that primary winding is a lead, the primary winding lead is drawn by the window at iron core middle part, and above-mentioned primary winding lead and iron core, secondary winding adopt the poured with epoxy resin one, the binding post that secondary winding is joined is positioned at housing one side of poured with epoxy resin, and the outer primary connection terminal of primary winding lead and housing joins.
2. a kind of indoor poured with epoxy resin current transformer according to claim 1 is characterized in that the primary connection terminal is the busbar that has connecting groove.
3. a kind of indoor poured with epoxy resin current transformer according to claim 2 is characterized in that above-mentioned busbar is a copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201090655U CN201044203Y (en) | 2007-05-09 | 2007-05-09 | Indoor epoxy resin pouring current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201090655U CN201044203Y (en) | 2007-05-09 | 2007-05-09 | Indoor epoxy resin pouring current mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201044203Y true CN201044203Y (en) | 2008-04-02 |
Family
ID=39259091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201090655U Expired - Fee Related CN201044203Y (en) | 2007-05-09 | 2007-05-09 | Indoor epoxy resin pouring current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201044203Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743760A (en) * | 2022-05-25 | 2022-07-12 | 衡阳市天立电器设备制造有限公司 | External combined transformer |
-
2007
- 2007-05-09 CN CNU2007201090655U patent/CN201044203Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114743760A (en) * | 2022-05-25 | 2022-07-12 | 衡阳市天立电器设备制造有限公司 | External combined transformer |
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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: 20080402 Termination date: 20120509 |