CN208722715U

CN208722715U - Cylindrical layer winding

Info

Publication number: CN208722715U
Application number: CN201821609454.9U
Authority: CN
Inventors: 王辉
Original assignee: NINGBO NINGBIAN POWER SCI-TECH Co Ltd
Current assignee: NINGBO NINGBIAN POWER SCI-TECH Co Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2019-04-09
Anticipated expiration: 2028-09-30

Abstract

Cylindrical layer winding is related to T & D Technology field, including several groups winding, every group of winding has a 2N root coil (N >=1), and when described winding technique successively winds from the inside to surface, and the coil every layer can n-layer be folded side by side for 2N/n root in winding, wherein n >=1,2N/n are integer.Inside stacking number is no more than outside stacking number when coiling.Compared with prior art, the utility model has the beneficial effects that greatly improving the flexibility of coil design, the fill factor of coil can be improved, and then reduce cost, reduce loss.

Description

Cylindrical layer winding

Technical field

The utility model relates to T & D Technology field more particularly to a kind of coil for transformer.

Background technique

Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, it have a common iron core and with Its several winding being crosslinked, and the spatial position between them is constant.When some winding receives AC energy from power supply, lead to Inductance magnetisation is crossed, the electromagnetic induction principle of the raw electricity of magnetic strength changes voltage, with same frequency, different voltages transmission in remaining winding AC energy.Drum type brake transformer is one kind of transformer, and primary structure is iron core setting in centre, during coil with iron core is Heart ring-wound, each winding just form a circle, traditional layer-type winding be generally several and around at the same can with 2 repeatedly around, Repeatedly around that need to replace in 1/2 layer of eminence, such as 3 and 2 repeatedly totally 6 line gauge parallel connection coilings.The common feature of traditional drum type coil is every layer Winding method be consistent, but this winding method is not flexible, at high cost, is lost also high.

Utility model content

The utility model aiming at the shortcomings in the prior art, provides cylindrical layer winding, greatly improves coil design Flexibility, can be improved the fill factor of coil, and then reduces cost, reduces loss.

In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals: cylindrical layer winding, Including several groups winding, every group of winding has a 2N root coil (N >=1), when the described winding technique from the inside to surface successively Winding, the coil can be that n-layer is folded side by side for 2N/n root for every layer in winding, and wherein n >=1,2N/n are integer.

In above-mentioned technical proposal, it is preferred that inside stacking number is no more than outside stacking number when coiling.

The common method of traditional drum type coil can be that every layer of winding method is consistent, and applies using with Variation Features Novel winding mode, every layer of coiling can be according to requiring to carry out stacking in parallel.Theoretically every layer of coiling can be arbitrarily The stacking number that parallel connection stacking, but for better cooling requirements, substantially the coil stacking number of outer layer are greater than internal layer, because of layer Folded number is more, and power density is bigger, and the calorific value of unit radiating surface is also bigger, and the coil heat dissipation performance in outer layer compares internal layer It is good, it is easier to radiate.

It, can be with compared with prior art, the utility model has the beneficial effects that greatly improve the flexibility of coil design The fill factor of coil is improved, and then reduces cost, reduce loss.

Detailed description of the invention

Fig. 1 is 1 schematic diagram of the utility model embodiment.

Specific embodiment

The utility model is described in further detail below with reference to figure and specific embodiment.

Embodiment 1: as shown in Figure 1, cylindrical layer winding, including several groups winding 1, every group of winding 1 have 6 Coil 2, when described 1 coiling of winding, successively wind 6 layers from the inside to surface, and the coil 2 is 6 at first every layer of 5 circle in winding Root side by side 1 stacking, at the 6th layer 3 side by side 2 stacking winding 2 circle fill up space.

Embodiment 2: cylindrical layer winding, including several groups winding, every group of winding have 8 coils, it is described around 4 layers are successively wound when group coiling from the inside to surface, coil first layer in winding is 81 stackings side by side, the second layer 4 Root 2 stacking side by side, third layer are 24 stackings side by side, and the 4th layer is 18 stacking side by side, and every layer of all winding is full.

Embodiment 3: cylindrical layer winding, including several groups winding, every group of winding has 16 coils, described When winding technique from the inside to surface successively wind 6 layers, the coil winding when first layer, the second layer and third layer be 8 simultaneously 2 stacking of row, the 4th layer, layer 5 and layer 6 are 44 stackings side by side, and every layer of all winding is full.

Claims

1. cylindrical layer winding, including several groups winding, it is characterized in that, every group of winding has 2N root coil (N >=1), institute Successively wound from the inside to surface when the winding technique stated, the coil in winding every layer can for 2N/n root, n-layer is folded side by side, wherein N >=1,2N/n are integer.

2. cylindrical layer winding according to claim 1, it is characterized in that, inside stacking number is no more than outside stacking when coiling Number.