CN207367758U

CN207367758U - A kind of low-voltage coil of end transposition

Info

Publication number: CN207367758U
Application number: CN201721365058.1U
Authority: CN
Inventors: 王成鲲
Original assignee: Space Perseverance Electric (hubei) Co Ltd
Current assignee: Space Perseverance Electric (hubei) Co Ltd
Priority date: 2017-10-20
Filing date: 2017-10-20
Publication date: 2018-05-15
Anticipated expiration: 2027-10-20

Abstract

A kind of low-voltage coil of end transposition, it is formed for two layers by four conducting wires in the round-trip lap wound in axial both ends, and four conducting wires are respectively the first conducting wire, the second conducting wire, privates and privates；In each layer, first conducting wire is stacked with the second conducting wire on radial, and the privates is stacked with privates on radial, and in the axial direction mutually simultaneously, phase is simultaneously in the axial direction for second conducting wire and privates for first conducting wire and privates；In the axial end portion transition position of adjacent two layers, the first conducting wire and the second conducting wire realize radial transposition by the inside and outside upset in radial plane, and privates realizes radial transposition with privates by the inside and outside upset in radial plane.Replace relative to middle part of the prior art, the low-voltage coil of the utility model, it only needs transposition once altogether in two layers, has saved man-hour；Wire transposition at the same time does not have to account for single line width position more, and space availability ratio improves, and has saved material.

Description

A kind of low-voltage coil of end transposition

Technical field

It the utility model is related to transformer technology field, and in particular to a kind of low-voltage coil of end transposition.

Background technology

Cylinder mode is a kind of common structure of transformer coil, as shown in Figure 1：When low-voltage coil is using double-layer circular letter Formula has four conducting wires two and two repeatedly (conducting wire 1 is mutually laminated with conducting wire 2 on radial, and conducting wire 1 is mutually arranged side by side in the axial direction with conducting wire 3) When, in order to ensure that conductor length is consistent and residing stray field position consistency, transposition processing up and down will be carried out to conducting wire.Generally all Replace at every layer of number of turn of coil 1/2, i.e. middle part transposition.Its benefit is that transposition is complete, and added losses are small, the drawback is that two layers each Transposition is once, more time-consuming；In addition, in transposition, since transposition occupies the width b of a conducting wire on axial height H, its Generally filled with insulating board, space availability ratio is relatively low.

Utility model content

To solve the above problems, the utility model is directed to providing a kind of low-voltage coil of end transposition, imitate its coiling Rate is high, space availability ratio is higher.

A kind of low-voltage coil of end transposition provided by the utility model, it is folded back and forth by four conducting wires at axial both ends Formed around two layers, four conducting wires are respectively the first conducting wire, the second conducting wire, privates and privates；In each layer, institute The first conducting wire to be stated to be stacked on radial with the second conducting wire, the privates is stacked with privates on radial, and described first In the axial direction mutually simultaneously, phase is simultaneously in the axial direction for second conducting wire and privates for conducting wire and privates；In the axis of adjacent two layers To end transition position, the first conducting wire and the second conducting wire realize radial transposition by the inside and outside upset in radial plane, and the 3rd leads Line realizes radial transposition with privates by the inside and outside upset in radial plane.

Replace relative to middle part of the prior art, the low-voltage coil of the utility model, it is only needed altogether in two layers Transposition once (in the prior art, needs transposition in every layer once), has saved man-hour；Wire transposition at the same time does not have to account for single line more Width position, space availability ratio improve, and have saved material.

Brief description of the drawings

Fig. 1 is conducting wire relative position schematic diagram of the coil of the prior art on axial cross section；

Fig. 2 is conducting wire relative position schematic diagram of the low-voltage coil of the utility model on axial cross section.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing.In the utility model Description in, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ", " level ", " interior ", " outer " Orientation or position relationship Deng instruction are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this practicality newly Type and simplifying describes, rather than instruction or implies that signified device or element must have specific orientation, with specific orientation Construction and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second ", " the 3rd " are only used In description purpose, and it is not intended that instruction or hint face ground importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Fig. 1 is please referred to Fig. 2.

In a preferred embodiment, the low-voltage coil of the utility model, it is folded back and forth by four conducting wires at axial both ends Formed around two layers.Four conducting wires are respectively the first conducting wire 1, the second conducting wire 2, privates 3 and privates 4.The utility model Low-voltage coil include two layers, i.e. internal layer I and outer layer II.In each layer, the first conducting wire 1 is stacked with the second conducting wire 2 on radial, Privates 3 is stacked with privates 4 on radial.First conducting wire 1 and privates 3 in the axial direction mutually simultaneously, the second conducting wire 2 with Privates 4 in the axial direction mutually simultaneously.In the axial end portion transition position of adjacent two layers, the first conducting wire 1 and the second conducting wire 2 are by spoke The transposition (radial relative position, i.e., the exchange of inside and outside relative position) on radial is realized to the inside and outside upset in plane, the 3rd leads Line 3 realizes the transposition on radial with privates 4 by the inside and outside upset in radial plane.

As shown in Fig. 2, in internal layer I, the first conducting wire 1 is located at the inner side of the second conducting wire 2, and privates 3 is led positioned at the 4th The inner side of line 4；After transposition, in outer layer II, the first conducting wire 1 is located at the outside of the second conducting wire 2, and privates 3 is led positioned at the 4th The outside of line 4.

In this way, replacing relative to middle part of the prior art, the low-voltage coil of the utility model, it has altogether only in two layers Need transposition once (in the prior art, to need transposition in every layer once), save man-hour；Wire transposition at the same time does not have to account for one more Root line width position, space availability ratio improve, and have saved material.Although there is the incomplete problem that replaces in it, for low capacity Transformer for, its increased added losses numerical value is small, is substantially negligible.

In some other embodiments, it is preferable that a kind of processing of simplification is：By the privates in above-described embodiment Cancel with privates, i.e., single and two situation repeatedly, above-mentioned primary cable can also obtain a degree of effect.

The non-detailed portion of other in the utility model belongs to the prior art, therefore details are not described herein.

Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should Understand：It can still modify the technical solution described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical solution of type.

Claims

1. the low-voltage coil of a kind of end transposition, it is characterised in that it is by four conducting wires in two layers of the round-trip lap wound in axial both ends Form, four conducting wires are respectively the first conducting wire, the second conducting wire, privates and privates；In each layer, described first Conducting wire is stacked with the second conducting wire on radial, and the privates is stacked with privates on radial, first conducting wire with In the axial direction mutually simultaneously, phase is simultaneously in the axial direction for second conducting wire and privates for privates；In the axial end portion of adjacent two layers Transition position, the first conducting wire and the second conducting wire realize radial transposition, privates and by the inside and outside upset in radial plane Four conducting wires realize radial transposition by the inside and outside upset in radial plane.