CN201465752U

CN201465752U - Composite conductor for transformer coil

Info

Publication number: CN201465752U
Application number: CN200920090716XU
Authority: CN
Inventors: 熊进; 常飞; 崔喜梅; 欧阳红霞; 鲁拉拉; 王文争; 张清
Original assignee: ZHENGZHOU JINYANG ELECTRICAL POWER CO Ltd
Current assignee: ZHENGZHOU JINYANG ELECTRICAL POWER CO Ltd
Priority date: 2009-06-11
Filing date: 2009-06-11
Publication date: 2010-05-12
Anticipated expiration: 2019-06-11

Abstract

The utility model discloses a composite conductor for a transformer coil, which comprises a plurality of conductors combined as one and an insulating layer covering the conductors, wherein, an insulating paper layer is arranged between two adjacent conductors, the insulating paper layer is 0.16 mm thickness, and the insulating layer covering the conductors is 0.675 mm thickness. Compared with the prior art method of covering each conductor with an insulating layer before combining individual insulating layers together, the utility model has the advantage that the insulating paper layer is arranged between the two adjacent conductors, that is, adopting the method of combining a plurality of naked conductors into a group of conductors connected in parallel, arranging an insulating paper layer between every two adjacent conductors, and then covering the group of conductors as a whole with a qualified insulating layer, thereby greatly reducing the overall size of the group of conductors as a whole and reducing the space necessary for the coil after winding the conductors, that is, greatly reducing the material consumption in the construction of the transformer and cutting the cost of manufacturing the transformer.

Description

The transformer coil composite conductor

Technical field

The utility model relates to a kind of lead, especially relates to a kind of transformer coil composite conductor.

Background technology

For the bigger transformer of winding current, because the conductor size of coiling has certain specification limits, simultaneously again in order to reduce excessive eddy current loss, the general mode that adopts many parallel connections of the lead of coiling.

For high-tension winding, require the insulating barrier of lead thicker, if when the insulating barrier of every parallel conducting wire is all very thick, the space that the insulating barrier of lead occupies is just bigger, the filling rate of actual copper conductor is low, causes the very big waste of transformer material.Because the voltage difference between one group of parallel conducting wire is very low, have at present and adopt composite conductor, be about to the insulating barrier attenuate between one group of parallel conducting wire, whole external thickness of insulating layer remains unchanged, but that the insulating barrier volume of this composite conductor reduces is very limited.

The utility model content

The purpose of this utility model is to provide a kind of integral insulation layer thickness to meet the requirements and takes up space minimum transformer coil composite conductor.

For achieving the above object, the utility model can be taked following technical proposals:

Transformer coil composite conductor described in the utility model comprises many plain conductors that are combined into one and coats its outer insulating barrier, is provided with insulating paper layer between described adjacent two plain conductors.

The thickness of described insulating paper layer is 0.16mm, and coating its outer thickness of insulating layer is 0.675mm.

Advantage of the present utility model is between adjacent two leads insulating paper layer to be set, need originally to be about to become by several plain conductors with the solid conductor that is combined into a group after the insulating barrier coating earlier form a lead group in parallel, between per two adjacent leads, insulating paper layer is set, coat satisfactory insulating barrier in the external overall of lead group then, the overall dimension of integrated wire group has been reduced a lot, can reduce the occupied space of coil after the coiling, promptly can reduce the material consumption of transformer greatly, reduce the production cost of transformer.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of conventional combination lead.

Embodiment

As shown in Figure 1, transformer coil composite conductor described in the utility model, comprise three plain conductors 1 that are combined into one and coat its outer insulating barrier 2, be provided with the thick insulating paper layer of 0.16mm 3 between described adjacent two plain conductors 1, the thickness that coats its outer insulating barrier 2 is length and wide b of being respectively and a that 0.675mm. supposes single plain conductor, the thickness that is coated on the outer insulating barrier of lead need guarantee at 0.675mm, the length of composite conductor cross section then of the present utility model and wide being respectively (b+1.35) mm and (3a+1.51) mm; Compare with the cross section of conventional combination lead, as shown in Figure 2, the length of composite conductor and wide (b+1.35) mm and (3a+2.25) mm (thickness of insulating layer of solid conductor is 0.225mm) of then being respectively, promptly the width of composite conductor of the present utility model has shortened 0.74mm. than the width of conventional combination lead

Claims

1. a transformer coil composite conductor comprises the many plain conductors (1) that are combined into one and coats its outer insulating barrier (2), it is characterized in that: be provided with insulating paper layer (3) between described adjacent two plain conductors (1).

2. transformer coil composite conductor according to claim 1 is characterized in that: the thickness of described insulating paper layer (3) is 0.16mm, and coating its outer insulating barrier (2) thickness is 0.675mm.