CN202816446U - Wire for making transformer coil - Google Patents
Wire for making transformer coil Download PDFInfo
- Publication number
- CN202816446U CN202816446U CN 201220496838 CN201220496838U CN202816446U CN 202816446 U CN202816446 U CN 202816446U CN 201220496838 CN201220496838 CN 201220496838 CN 201220496838 U CN201220496838 U CN 201220496838U CN 202816446 U CN202816446 U CN 202816446U
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- wire
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- transformer coil
- insulating barrier
- insulating layer
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Abstract
The utility model provides a wire for making a transformer coil, and pertains to the technical field of transformers. According to the utility model, problems of low production efficiency and poor reliability caused by the reason that the wire for making a transformer coil is formed by welding a variety of wires and conductors together in the prior art can be solved. The wire for making a transformer coil comprises a metal conductor core, the conductor core is coated with a plurality of insulating layer sections whose thicknesses are increased gradually, each insulating layer section has a same thickness, the transition between every two neighboring insulating layer sections is realized through a cone, the thickness of the smaller end of the cone is the same as the thickness of a neighboring insulating layer and connected with the neighboring insulating layer as an integral body, and the thickness of the bigger end of the cone is the same as the thickness of a neighboring insulating layer and connected with the neighboring insulating layer as an integral body. The wire for making a transformer coil only adopts a conductor having a metal conductor core, so the production efficiency is improved, and the reliability is improved at the same time.
Description
Technical field
The utility model belongs to field, transformer technology field, relates to a kind of wire for making transformer coil.
Background technology
The function of transformer mainly contains: voltage transformation, impedance transformation, isolation, voltage stabilizing etc., the citation form of transformer comprises two groups of coils that are wound with wire, and claims to unify in the inductance mode each other.When an alternating current source and course in one of them group during coil, in another group coil, will induce the alternating voltage with same frequency, and the voltage swing of induction depends on the degree of two coil couplings and magnetic interlinkage, the coil that refers generally to connect AC power is referred to as primary winding, and be referred to as primary voltage across the voltage of this coil, induced voltage at secondary coil may be greater than or less than primary voltage, is to be determined by the turn ratio between primary winding and secondary coil; Therefore, transformer is divided into and is boosted and two kinds of step-down transformers.Most transformer all has fixing iron core, is wound with once the coil with secondary on it.Based on the high magnetic conductivity of iron material, most of magnetic flux is confined in the iron core, and therefore, two groups of coils can obtain the magnetic coupling of suitable high level.In some transformers, the two closely is combined coil and iron core, and once almost the coil ratio with the two is identical with the ratio of secondary voltage for it.Therefore, the turn ratio of transformer can be used as generally that transformer boosts or the reference index of step-down.The function with step-down because this boosts, so that transformer has become the important adjunct of one of modern power industry system, promote transmission voltage so that long-distance transmit electric power more economical, as for step-down transformer, it is so that the more diversification of power operation aspect, can say so, not have transformer, modern industry can't reach present Current situation in fact.
At present, what the wire that transformer is used adopted is same turn insulation structure, this structure is that guide line adopts same turn insulation in total length L, but the surge voltage gradient that each line segment bears in the high voltage transformer winding is different, for product economy, need to adopt different turn insulation wires, but this belt transect a series of problem, 1, will purchase several wires; 2, in winding technique, must be welded to each other connection between the wire, and the production efficiency that adopted multiple wire influence, and between wire by being welded to connect, reduced reliability.
Summary of the invention
There are the problems referred to above in the utility model for existing technology, has proposed a kind of wire for making transformer coil, and the wire that should be used for the making transformer coil only adopts a kind of wire, when having improved production efficiency, has strengthened reliability.
The utility model is realized by following technical proposal: a kind of wire for making transformer coil, comprise the metal guide core, it is characterized in that, coating the insulating barrier that some sections thickness increase progressively successively on the described metal guide core, the thickness of every section insulating barrier is identical, between adjacent two sections insulating barriers by the cone transition, the small end of described cone and adjoining insulating barrier uniform thickness and be connected as a single entity, the large end of described cone and adjoining insulating barrier uniform thickness and be connected as a single entity.
Because can being divided into low pressure, the surge voltage gradient difference that each line segment bears in the high voltage transformer winding impacts gradient region and impacting with high pressure gradient region, if adopt the insulating barrier of same thickness, then the insulating barrier of low pressure impact gradient region is too thick, increased cost in the time of the waste material, the thicker insulating barrier of wire external layer parcel at the high-voltage impact gradient region of winding, impact the thinner insulating barrier of wire external layer parcel of gradient region in low pressure, and the low pressure of high voltage transformer winding is impacted the transition portion that has voltage to promote between gradient and the impacting with high pressure gradient region, this part adopts thinner insulating barrier that potential safety hazard is arranged, adopt thicker insulating barrier then to waste material, connect two adjacent insulating barriers by cone, so that the different insulating barrier of two thickness seamlessly transits, insulating barrier at different voltage gradient parcel suitable thickness, in the time of products quality guarantee, saved cost.
At the wire that is used for making transformer coil, the described core of leading is transposition line, and described transposition line is comprised of some enameled sheet wires.The winding of high voltage transformer adopts transposition line, can significantly reduce load loss, reduces the coiling hotspot temperature rise, promotes the winding mechanical strength.
At the wire that is used for making transformer coil, described insulating barrier and transition face all adopt insulating paper to make.Insulating paper is the general name of electric insulation paper using, and insulating paper has good insulation property and mechanical strength as the insulating material of every electric equipments such as cable, coil.
At the wire that is used for making transformer coil, described metal guide core is copper or aluminium.Copper and aluminium conductivity in common metal is better.
Compared with prior art, this wire that is used for the making transformer coil has the following advantages: the insulating barrier clad metal of 1, having cancelled welding employing different-thickness between winding different insulative wire is led core, has improved production efficiency; 2, the hidden danger of quality such as the metal powder pollution that brings because of welding, rosin joint have been eliminated; 3, the insulating barrier distribution is more reasonable, has both satisfied the insulation requirements of the different voltge surge gradients of winding, has reduced again the manufacturing cost of transformer.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, 1, the metal guide core; 2, insulating barrier; 3, cone.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, the wire that this be used for to make transformer coil comprises metal guide core 1, metal guide core 1 can be selected copper or aluminium, and copper and aluminium have better conductivity in common metal.Metal guide core 1 also is applicable to compound section wire and transposition line; Transposition line is to arrange establishment by some enameled sheet wires by two row, is coated by insulating barrier 2 and is made into winding wire, and transposition line is applied in the middle of the high voltage transformer winding, can significantly reduce load loss, reduces the coiling hotspot temperature rise, promotes the winding mechanical strength.
Wrap up the insulating barriers 2 of respective thickness according to the voltge surge gradient difference that high voltage transformer bears, therefore coating the insulating barrier 2 that two sections thickness increase progressively successively on the metal guide core 1, the thickness of every section insulating barrier 2 is identical, small end and the insulating barrier of the last period 2 uniform thickness by cone 3 transition bodies 3 between two sections insulating barriers 2 and being connected as a single entity, the large end of cone 3 and rear one section insulating barrier 2 uniform thickness and be connected as a single entity.Insulating barrier 2 and cone 3 all adopt insulating paper to make.Insulating paper is the general name of electric insulation paper using, and the insulating material as every electric equipments such as cable, coils has good insulation property and mechanical strength.
This operation principle for the wire of making transformer coil is as follows: because the surge voltage gradient difference of bearing at each line segment of high voltage transformer winding can be divided into low pressure impact gradient region and impacting with high pressure gradient region, if low pressure impact gradient region and impacting with high pressure gradient region adopt the insulating barrier 2 of same thickness, it is too thick then to be coated on low pressure impact gradient region metal guide core 1 outer field insulating barrier 2, the waste material has increased cost.Coat the insulating barrier 2 of suitable thickness at the metal guide core 1 of different voltge surge gradient regions, saved cost when or else reducing the transformer reliability; Impact between gradient region and the impacting with high pressure gradient region by cone 3 connection transition in low pressure, reliably insulating barrier 2 is impacted gradient region to the transition of impacting with high pressure gradient region from low pressure, also saved material, two adjacent insulating barrier 2 thickness seamlessly transits so that this wire has more practicality simultaneously.This wire that is used for the making transformer coil is selected a kind of metal guide core 1, cancelled in the original winding making and being welded between wire need different insulative wire, therefore eliminated the reliability that has promoted product when the hidden danger of quality such as the metal powder pollution that brings because of welding, rosin joint have improved production efficiency, it is more reasonable that insulating barrier 2 thickness distribute, both satisfy the insulation requirements of the different voltge surge gradients of winding, reduced again the manufacturing cost of transformer.
Claims (4)
1. wire of be used for making transformer coil, comprise metal guide core (1), it is characterized in that, coating the insulating barrier (2) that some sections thickness increase progressively successively on the described metal guide core (1), the thickness of every section insulating barrier (2) is identical, pass through cone (3) transition between adjacent two sections insulating barriers (2), the small end of described cone (3) and adjoining insulating barrier (2) uniform thickness and be connected as a single entity, the large end of described cone (3) and adjoining insulating barrier (2) uniform thickness and be connected as a single entity.
2. the wire for making transformer coil according to claim 1 is characterized in that described metal guide core (1) is transposition line, and described transposition line is comprised of some enameled sheet wires.
3. the wire for making transformer coil according to claim 1 and 2 is characterized in that described insulating barrier (2) and transition face all adopt insulating paper to make.
4. the wire for making transformer coil according to claim 3 is characterized in that described metal guide core (1) is copper or aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496838 CN202816446U (en) | 2012-09-26 | 2012-09-26 | Wire for making transformer coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496838 CN202816446U (en) | 2012-09-26 | 2012-09-26 | Wire for making transformer coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816446U true CN202816446U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220496838 Expired - Fee Related CN202816446U (en) | 2012-09-26 | 2012-09-26 | Wire for making transformer coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551583A (en) * | 2014-10-24 | 2016-05-04 | 三菱综合材料株式会社 | Flat coil flat insulated electric wire and manufacturing method for same |
-
2012
- 2012-09-26 CN CN 201220496838 patent/CN202816446U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551583A (en) * | 2014-10-24 | 2016-05-04 | 三菱综合材料株式会社 | Flat coil flat insulated electric wire and manufacturing method for same |
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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: 20130320 Termination date: 20190926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |