CN217361334U - Transformer with novel lead structure - Google Patents

Abstract

The utility model relates to the technical field of transformers, in particular to a transformer with a novel lead structure, which comprises a plurality of groups of winding coils, and a connecting rod, wherein the connecting rod can conduct electricity, and the winding coils are sequentially connected end to end through the connecting rod; the connecting rod includes connecting rod main part and kink, the utility model discloses utilize the kink to realize the lead wire function, therefore simple structure, cost are lower.

Description

Transformer with novel lead structure

Technical Field

The utility model relates to a transformer technical field specifically is a transformer with novel lead wire structure.

Background

In a dry-type transformer, there are usually several groups of coil windings, and the coil windings are connected in a D-connection or an angle-connection manner through different connection manners. The winding connection mode is usually realized by connecting a lead wire with a terminal or connecting rods with the terminal.

After the winding is connected, the winding is connected with a lug plate positioned on the upper iron core clamp through a cable, an insulator is further connected between the lug plate and the upper iron core clamp, and the purpose of leading wires is achieved through the connection of the lug plate and the outside.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transformer with novel lead wire structure to solve at least one problem that proposes in the above-mentioned background art.

The technical scheme of the utility model is that: a transformer with a novel lead structure, which comprises a plurality of groups of winding coils,

the transformer also comprises a connecting rod, the connecting rod can conduct electricity, and all groups of winding coils are sequentially connected end to end through the connecting rod;

the connecting rod comprises a connecting rod main body and a bending part.

Optionally, a connecting plate is arranged outside each group of winding coils, and binding posts are arranged at the upper end and the lower end of the connecting plate;

the two ends of the connecting rod main body are provided with wiring noses;

the connecting rod is connected with the wiring terminal through the wiring lug.

Optionally, the bent portion is bent towards a side away from the transformer relative to the connecting rod main body, and an electrical connection structure is arranged on the bent portion.

Optionally, the electrical connection structure is a connection hole.

Optionally, the multiple groups of winding coils are A, B, C three groups of winding coils, and A, B, C three connection plates are respectively arranged outside the A, B, C three groups of winding coils; the binding posts arranged at the two ends of each connecting plate are an upper binding post and a lower binding post respectively; the connecting rods comprise a first connecting rod, a second connecting rod and a third connecting rod;

the upper wiring terminal of the A connecting plate is electrically connected with the wiring nose of the first connecting rod, and the lower wiring terminal of the C connecting plate is electrically connected with the other wiring nose of the first connecting rod;

the upper wiring terminal of the B connecting plate is electrically connected with the wiring nose of the second connecting rod, and the lower wiring terminal of the A connecting plate is electrically connected with the other wiring nose of the second connecting rod;

and the upper wiring column of the C connecting plate is electrically connected with the wiring nose of the third connecting rod, and the lower wiring column of the B wiring plate is electrically connected with the other wiring nose of the third connecting rod.

Optionally, the connecting rod main body and the bent portion are integrally formed.

The transformer with the novel lead structure provided by the utility model comprises a plurality of groups of winding coils and a connecting rod, wherein the connecting rod can conduct electricity; the winding coils of each group are sequentially connected end to end through the connecting rods; the connecting rod comprises a connecting rod main body and a bending part. The lead function is realized by the bent part of the connecting rod, so the structure is simple and the cost is low.

Drawings

The invention is further explained below with reference to the figures and examples:

fig. 1 is a front view structural diagram of a transformer of the related art;

fig. 2 is a left side view structural diagram of a transformer of the related art;

fig. 3 is a schematic view of a rod structure of a related art transformer;

fig. 4 is a schematic front view of the transformer of the present invention;

fig. 5 is a left side view schematic diagram of the transformer of the present invention;

fig. 6 is a schematic diagram of a connecting rod structure of the transformer of the present invention.

Detailed Description

The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1 to 3, in the related art, a dry type transformer 1 includes a plurality of sets of winding coils. The figure shows 3 groups, generally called A, B, C groups, the group A winding coil is externally provided with a connecting plate 17, and the connecting plate 17 is connected with the lead wire of the winding coil; the terminals 15 of the connection plates 17 at the upper and lower ends are in electrical connection with the leads of the winding coil.

The transformer 1 further comprises a connecting rod 16, and the connecting rod 16 is used for being electrically connected with the binding post 15, so that the electrical connection between the leads of different groups of winding coils is realized.

The transformer 1 further comprises a cable 14, one end of the cable 14 is connected with the upper terminal post 15, the other end of the cable 14 is electrically connected with the lug 12 on the upper iron core clamp 11, and the lug 12 is mounted on the upper iron core clamp 11 through an insulator 13. Since the terminal 12 is electrically connected to the outside, for example, by drilling a hole in the terminal 12, an insulator 13 is required between the terminal 12 and the upper core holder 11 to ensure insulation safety.

A front and left side view of the connecting rod is shown in fig. 3. The lead wire structure formed by the cable 14, the lug 12 and the insulator 13 in the related art is complicated and high in cost.

The utility model provides a transformer with a novel lead structure, as shown in figures 4-6, a transformer 2 comprises a plurality of groups of winding coils and a conductive connecting rod, and each group of winding coils are sequentially connected end to end through the connecting rod; the connecting rod comprises a connecting rod main body and a bending part, and the bending part is used for realizing an electric connection relation with the outside. As can be seen from the illustration, the upper core clamp 21 of the transformer 2 of the present invention is not provided with a lug, an insulator, or a cable connected to the lug. Therefore, by changing the structure of the connecting rod (the bent part is arranged), the lead structure can be realized after the elements are omitted, the electric connection function is realized, the structure is simplified, and the cost is reduced.

The winding coil shown in fig. 4 has 3 groups, generally referred to as A, B, C groups, and an a connection plate 241, a B connection plate 242, and a C connection plate 243 are provided outside the a group winding coil.

Specifically, connecting plates 241, 242, 243 are arranged outside each group of winding coils, and terminals 221, 222 are arranged at the upper and lower ends of the connecting plates; the two ends of the main bodies of the connecting rods 231, 232 and 233 are provided with wire connecting noses 236 and 237; the links 231, 232, 233 are connected to the posts 221, 222 by lug noses 236, 237.

With the above structure, the links 231, 232, 233 achieve electrical connection with the winding coil, thereby completing the connection structure of the winding coil.

Optionally, the bending part is bent towards a side away from the transformer relative to the connecting rod main body, and an electrical connection structure is arranged on the bending part.

Through the structure, the bending part can be conveniently utilized to realize the electric connection with the outside.

Optionally, the electrical connection structure is a connection hole. The electrical connection structure may be conveniently implemented by a drilling process, for example.

The structure of the transformer is described in detail with reference to fig. 4-6.

In the figure, the multiple groups of winding coils are A, B, C three groups of winding coils, and the A, B, C three groups of winding coils are respectively provided with A, B, C three connecting plates outside; the binding posts arranged at the upper ends of each connecting plate are an upper binding post 221 and a lower binding post 222 respectively; the links include a first link 231, a second link 232, and a third link 233; the upper terminal of the a link plate 241 is electrically connected to the terminal lug 236 of the first link 231, and the lower terminal stud 222 of the C link plate 243 is electrically connected to the other terminal lug 237 of the first link 231;

the upper terminal 221 of the B connection plate 242 is electrically connected to the terminal lug 236 of the second link 232, and the lower terminal 222 of the a connection plate 241 is electrically connected to the other terminal lug 237 of the second link 232;

the upper terminal 221 of the C connection plate 243 is electrically connected to the terminal lug 236 of the third link 233, and the lower terminal 222 of the B connection plate 242 is electrically connected to the other terminal lug 237 of the third link 233.

The three-phase transformer with the novel lead structure has the advantages of simplified structure, reduced cost and good insulating capability.

In conclusion, through the reasonable arrangement of the connecting rod structure, the original lead structure element is omitted, and a new lead structure with simple structure, simple process and reduced cost and a transformer with the lead structure are formed.

The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A transformer with a novel lead structure, which comprises a plurality of groups of winding coils, is characterized in that,

the transformer further comprises a connecting rod, the connecting rod being electrically conductive;

the winding coils of each group are sequentially connected end to end through the connecting rods;

the connecting rod comprises a connecting rod main body and a bending part.

2. The transformer of claim 1, wherein:

a connecting plate is arranged outside each group of winding coils, and binding posts are arranged at the upper end and the lower end of the connecting plate;

the two ends of the connecting rod main body are provided with wiring noses;

the connecting rod is connected with the wiring terminal through the wiring lug.

3. The transformer according to any one of claims 1-2, wherein: the bending part is bent towards one side far away from the transformer relative to the connecting rod main body, and an electric connection structure is arranged on the bending part.

4. The transformer of claim 3, wherein: the electric connection structure is a connection hole.

5. The transformer of claim 3, wherein: the multiple groups of winding coils are A, B, C three groups of winding coils, and A, B, C three connecting plates are respectively arranged outside the A, B, C three groups of winding coils; the binding posts arranged at the two ends of each connecting plate are an upper binding post and a lower binding post respectively; the connecting rods comprise a first connecting rod, a second connecting rod and a third connecting rod;

the upper wiring terminal of the A connecting plate is electrically connected with the wiring nose of the first connecting rod, and the lower wiring terminal of the C connecting plate is electrically connected with the other wiring nose of the first connecting rod;

the upper wiring terminal of the B connecting plate is electrically connected with the wiring nose of the second connecting rod, and the lower wiring terminal of the A connecting plate is electrically connected with the other wiring nose of the second connecting rod;

and the upper wiring column of the C connecting plate is electrically connected with the wiring nose of the third connecting rod, and the lower wiring column of the B wiring plate is electrically connected with the other wiring nose of the third connecting rod.

6. The transformer according to any one of claims 1-2, wherein: the connecting rod main body and the bending part are integrally formed.

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