CN201222409Y

CN201222409Y - Transformer coil

Info

Publication number: CN201222409Y
Application number: CNU2008200499838U
Authority: CN
Inventors: 刘贤龙; 刘贤文; 刘贤群; 宋范; 俞安; 苏红元
Original assignee: GUANGZHOU GUANGGAO HIGH VOLTAGE ELECTRIC APPARATUS CO Ltd
Current assignee: GUANGZHOU GUANGGAO HIGH VOLTAGE ELECTRIC APPARATUS CO Ltd
Priority date: 2008-06-30
Filing date: 2008-06-30
Publication date: 2009-04-15
Anticipated expiration: 2018-06-30

Abstract

The utility model discloses a transformer coil, whose inner circle is sleeved with an iron core. The transformer coil comprises a plurality of ring-shaped line segment groups which are axially arranged along the iron core and are connected through a transition line, wherein the ring-shaped line segment groups comprise ring-shaped line segment groups which are wound from inside to outside and ring-shaped segment groups which are wound from outside to inside, wherein the ring-shaped line segment groups which are wound from inside to outside and the ring-shaped segment groups which are wound from outside to inside are axially and alternatively arrayed along the iron core, the transition line comprises an inner circle transition line and an outer circle transition line, which extends along the winding directions of the ring-shaped line segment groups, namely adjacent ring-shaped line segment groups which are wound from inside to outside and adjacent ring-shaped segment groups which are wound from outside to inside are relatively connected through the outer circle transition line and the inner circle transition line. The transformer coil shortens transition lines, saves copper products, lowers production cost of the transformer, and meanwhile, leads the structure of the coil to be simpler and is in accordance with the circular design requirements of the transformer.

Description

A kind of transformer coil

Technical field

The utility model relates to the transformer equipment accessory, specifically is a kind of transformer coil.

Background technology

In the time of the coiling of conventional transformer pitch of the laps, convenient for coiling, each annular line segments group all is to carry out from inside to outside.Therefore between adjacent two layers annular line segments group, in the transition, every section transition wire must be guided to inner surface from the coil outer surface.Common processing method all is the outer lead bending certain angle with the good annular line segments group of coiling, passes that the space extends to the coil inner surface between the annular line segments group, and then carries out the coiling of next adjacent annular sets of line segments.Though such winding method meets the custom of conventional coiling very much, because every section transition wire all needs to extend to the coil inner surface from the coil outer surface, the transition route is longer, and copper material consumption is very big, thereby has increased the cost of transformer.Simultaneously, the transition wire bending produces outwards outstanding turning, is unfavorable for the circular design of transformer profile.

The utility model content

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, a kind of transformer coil is provided, transition wire between its adjacent two layers annular line segments group is postponed along annular line segments group coiling direction, be distributed in the external peripheral surface or the inner circumferential surface of annular line segments group, save copper loss, also made coil shape more meet circular effect simultaneously.

The purpose of this utility model realizes by following proposal: this transformer coil, its inner periphery and iron core socket, described transformer coil comprises a plurality of along iron core axially-aligned and the annular line segments group that is connected by branch-cut bridge, outwards the annular line segments group of coiling, the annular line segments group of coiling outside to inside in described annular line segments group comprises, described in outwards the annular line segments group of annular line segments group, the coiling outside to inside of coiling along iron mandrel to alternately arranging; Described transition wire comprises inner periphery transition wire, excircle transition wire, it is postponed along annular line segments group coiling direction, and is corresponding to excircle transition wire or the connection of inner periphery transition wire between the annular line segments group of the annular line segments group of promptly adjacent interior outside coiling, coiling outside to inside.

For realizing the utility model better, described transition wire is "～" shape, and the arc section at its two ends is connected with two adjacent annular line segments groups respectively.

The multiturn sets of line segments that described annular line segments group forms for the solid conductor coiling is perhaps for multiple conducting wires and around the multiturn sets of line segments that forms.

Be provided with axial oil duct gap between described adjacent two annular line segments groups, be provided with at least one cross-over block in each axial oil duct gap.

Described cross-over block adopts the corrugated layer pressboard to make.

Compared with prior art, the utlity model has following advantage and beneficial effect: described transition wire directly is distributed in the outer circumference surface or the inner peripheral surface of annular line segments group, do not need to pass the oil duct passage between adjacent two layers annular line segments group, the transition route shortens, therefore can save copper material, reduce the transformer cost.Because transition wire is postponed along coil coiling direction, more meet the requirement of transformer circular design simultaneously.

Description of drawings

Fig. 1 is the structural representation of the utility model transformer coil.

Embodiment

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.

Embodiment one

As shown in Figure 1, this transformer coil 1, its inner periphery and the socket of iron core (not shown), transformer coil 1 comprises a plurality of along iron core axially-aligned and the annular line segments group 2 that is connected by branch-cut bridge 4, outwards the annular line segments group (21,23) of coiling, the annular line segments group 22 of coiling outside to inside in annular line segments group 2 comprises, described in outwards the annular line segments group 22 of annular line segments group (21,23), the coiling outside to inside of coiling along iron mandrel to alternately arranging; Described transition wire 4 comprises inner periphery transition wire 42, excircle transition wire 41, it is postponed along annular line segments group 2 coiling directions, be correspondingly between the annular line segments group 22 of annular line segments group 21, coiling outside to inside of adjacent interior outside coiling to connect by excircle transition wire 41, this outside to inside the annular line segments group 22 of coiling be connected by the annular line segments group 23 of the inner periphery transition wire 42 interior outside coiling adjacent again with another, and the like, thereby all annular line segments groups 2 all are connected to each other, form complete current path.

As shown in Figure 1, described transition wire 4 is "～" shape, and the arc section at its two ends is connected with two adjacent annular line segments groups respectively.

The multiturn sets of line segments that annular line segments group 2 forms for the solid conductor coiling is perhaps for multiple conducting wires and around the multiturn sets of line segments that forms.

Be provided with axial oil duct gap between adjacent two annular line segments groups 2, axially be provided with the cross-over block 3 that at least one adopts the corrugated layer pressboard to make in the oil duct gap.

This transformer coil winding adopts general coil winding machine to carry out coiling, and wherein coil winding machine comprises line mould and the stay that is provided with on the online mould.Annular line segments group 22 with coiling outside to inside is an example below, and its winding process is described:

Lead coiling from inside to outside goes out annular line segments group 21, lead lift one's head the outside in annular line segments group 21.Under the condition of wire relaxes,, and make next section transition wire 41 in a side of annular line segments group 21 interim annular line segments group of coiling from inside to outside.The interim line segment of manual dislocation is taken down the uppermost circle of interim line segment, is put near the interim line segment and on the stay away from annular line segments group 21 directions, a circle one is put lead all over the ground successively then.When last circle of interim line segment is moved to uppermost the time, interim line segment dislocation finishes.The line segment that mobile dislocation is good abuts against it press close on the cross-over block of annular line segments group 21, takes up the good annular line segments group of dislocation with due tension force, thereby makes the coiling of annular line segments group 22 be accomplished.

Transition wire 41 directly directly extends to the outside of annular line segments group 22 from the outside of annular line segments group 21, do not need to intert between the space in the middle of annular line segments group 21 and the annular line segments group 22, and transition distance is short, saves copper material consumption.Because transition wire 41 is postponed along annular line segments group 2 coiling directions, do not have knuckle to occur simultaneously, make whole transformer coil 1 more meet the requirement of transformer circular design.

As mentioned above, just can realize the utility model preferably, the foregoing description is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model; Be that all equalizations of being done according to the utility model content change and modification, all contained by the utility model claim scope required for protection.

Claims

1, a kind of transformer coil, its inner periphery and iron core socket, described transformer coil comprises a plurality of along iron core axially-aligned and the annular line segments group that is connected by branch-cut bridge, it is characterized in that: outwards the annular line segments group of coiling, the annular line segments group of coiling outside to inside in described annular line segments group comprises, described in outwards the annular line segments group of annular line segments group, the coiling outside to inside of coiling along iron mandrel to alternately arranging; Described transition wire comprises inner periphery transition wire, excircle transition wire, it is postponed along annular line segments group coiling direction, and is corresponding to excircle transition wire or the connection of inner periphery transition wire between the annular line segments group of the annular line segments group of promptly adjacent interior outside coiling, coiling outside to inside.

2, according to the described a kind of transformer coil of claim 1, it is characterized in that: described transition wire is "～" shape, and the arc section at its two ends is connected with two adjacent annular line segments groups respectively.

3, according to the described a kind of transformer coil of claim 1, it is characterized in that: the multiturn sets of line segments that described annular line segments group forms for the solid conductor coiling.

4, according to the described a kind of transformer coil of claim 1, it is characterized in that: described annular line segments group is a multiple conducting wires and around the multiturn sets of line segments that forms.

5, according to each described a kind of transformer coil of claim 1～4, it is characterized in that: be provided with axial oil duct gap between described adjacent two annular line segments groups, be provided with at least one cross-over block in each axial oil duct gap.

6, according to the described a kind of transformer coil of claim 5, it is characterized in that: described cross-over block is the corrugated layer pressboard.