CN204651149U - The dry-type transformer that a kind of tool winding wire material use quantity is few - Google Patents

Abstract

The utility model discloses a dry-type transformer with less consumption of winding wires, which comprises an iron core, a coil wound on the iron core, and a clamping part for clamping the iron core; The shape is composed of four sections of arcs, among them, along the length direction are two semicircle-like arc sections with two free ends facing outwards, and along the width direction, the two ends of the two semicircle-like arc sections are connected to each other. Two wide arc segments connected by cutting. The new type of dry-type transformer, the coil winding method adopts a special winding method of four sections of arcs, so that the whole dry-type transformer presents a "short and fat" shape, which can reduce the number of wires under the condition of meeting the same parameters such as magnetic flux. Turns, reduce the amount, so that the height of the iron core can be reduced, iron loss, noise, etc., and the amount of wire used in the winding will also be reduced by about 5%.

Description

A dry-type transformer with less consumption of winding wire

technical field

The utility model relates to dry-type transformer equipment, in particular to a dry-type transformer with less consumption of winding wires.

Background technique

At present, dry-type transformers are more and more widely used in power supply and distribution, and become an important part of circuit conversion. The dry-type transformer mainly includes an iron core, a coil wound on the iron core, and a clamping part that clamps the iron core. The coil is formed by pouring the wound coil winding. In order to ensure the smoothness of the winding, the coil winding is usually wound in a circular manner at present, so that the coils formed are all in a cylindrical structure. The coil is wound in the above-mentioned way. In order to meet certain parameters such as magnetic flux in practical applications, not only the amount of winding wire is relatively large, but also the length of the formed coil is lengthened, and the height of the corresponding iron core needs to be lengthened, resulting in iron loss and noise. And other issues.

Utility model content

The purpose of this utility model is to provide a dry-type transformer with a small amount of winding wire. Through small improvements to the winding method, the advantages of reducing the amount of winding wire, reducing the height of the iron core, and reducing iron loss and noise are brought.

In order to achieve the above object, the solution of the present utility model is:

A dry-type transformer with a small amount of winding wire, including an iron core, a coil wound on the iron core, and a clamping part for clamping the iron core; the winding shape of the cross-section of the coil consists of four sections Composed of circular arcs, in which along the length direction there are two semicircle-like segments whose two free ends are disengaged outwards, and along the width direction the two ends of the two semi-circle-like segments are connected in a tangential manner Two wide arc segments of .

A plurality of connection terminals are protruded from the side of the coil.

The clamping part has four rectangular square tubes in groups of two up and down, and the two groups of rectangular square tubes are respectively provided with a convenient hole and an assembly hole on the opposite side walls of each tube, and the diameter of the convenient hole is larger than that of the assembly hole. The hole diameter is extended through the convenience hole, and the upper and lower sets of rectangular square tubes are clamped and assembled through the assembly hole and the assembly.

The lower group of rectangular square tubes of the clamping parts are also welded with channel-shaped support feet with openings facing downwards.

After adopting the above scheme, the beneficial effect of the new model compared with the prior art lies in that the coil winding method of the new dry-type transformer adopts a non-circular method, but adopts a special winding method of four sections of arcs, so that the whole dry-type transformer The transformer presents a "short and fat" shape. Under the condition of meeting the same parameter requirements such as magnetic flux, the number of turns of the wire can be reduced, and the amount of wire can be reduced. This can reduce the height of the iron core, reduce iron loss, noise, etc., and the amount of wire used in the winding can also be reduced. will decrease by about 5%. In addition, because the four-segment arcs are still connected in a tangential manner, the smoothness of the winding is still guaranteed.

Description of drawings

Fig. 1 is the front view of the novel dry-type transformer;

Fig. 2 is a schematic diagram of the coil of the new dry-type transformer.

Label description

Core 1 Coil 2

Semi-circle section 21 Wide arc section 22

Terminal Block 23 Clamping Part 3

Rectangular square tube 31 Convenience hole 311

Assembly 32 Feet 33.

Detailed ways

The present case will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

This case involves a dry-type transformer that is easy to process and assemble. As shown in Figure 1, it mainly includes an iron core 1, a coil 2 and a clamping part 3, the coil 2 is wound on the iron core 1, and the clamping part 3 is used for Iron core 1 is clamped to realize positioning assembly.

This new model mainly makes innovative improvements to the coil 2. The coil is formed by pouring the wound coil winding. As shown in Figure 2, the coil winding is wound and adapted to the cast coil 2. The winding shape of the cross section consists of four sections. Composition of arcs. Wherein, along the length direction are two sections of semicircle-arc sections 21, which are formed by disengaging the two free ends of two semicircles; along the width direction are two sections of wide-arc sections. 22. Through the two wide arc segments 22, the two ends of the two quasi-semi-arc segments 21 are smoothly connected in a tangential manner, so the smoothness of winding is still guaranteed.

The coil 2 winding method of this new type abandons the traditional circular method, but adopts a special winding method with four sections of arcs. Under the condition of meeting the same parameter requirements such as magnetic flux, the number of turns of the wire can be reduced, the consumption amount can be reduced, and the Iron core height, reduced iron loss, noise and other advantages, and the amount of wire used in the winding will also be reduced a lot (practice has proved that it can be reduced by about 5%).

A plurality of connection terminals 23 are protruded from the side of the coil 2 to facilitate its connection.

Furthermore, this new model also makes innovations and improvements to the clamping part 3, which has four rectangular square tubes 31. Only the side view of the rectangular square tubes 31 is given in Fig. 1, and the cross section of the rectangular square tubes 31 is Closed rectangular structure. The four rectangular square tubes 31 are grouped in pairs up and down, and the two sets of rectangular square tubes 31 are respectively provided with convenience holes 311 and assembly holes (not shown in the figure) on the opposite side walls of each tube. When assembling, the upper and lower groups of rectangular square tubes 31 can be easily locked up and down through the assembling holes and the assembling parts 32 by means of the convenience hole 311 penetrating through to realize the clamping assembly.

The main component of the clamping part 3 adopts a rectangular square pipe in a rectangular sealing shape, which is not easily deformed during processing and assembly, and the assembly is firm, and no additional welding is required. Convenience hole, easy to realize the assembly of the assembly hole and assembly parts to complete the assembly operation of the clamping parts, the assembly operation is very convenient, and the structure is extremely simple.

The aperture of the convenience hole 311 is preferably slightly larger than the aperture of the assembly hole. Under the premise of maximizing the firm structure of the rectangular square tube 31, the convenience hole 311 can fully exert its effect of facilitating assembly.

In addition, in the given embodiment, the upper and lower sets of rectangular square tubes are respectively locked through four sets of assembly holes and assembly parts 32, and the four groups of assembly holes and assembly parts 32 are locked in groups of two by two on the rectangular square tube. 31 near the two ends. Further, the two-by-two assembly holes and assembly parts 32 are dislocated up and down (see FIG. 1 ), so as to enhance the locking strength and the firmness of the entire clamping part 3 .

Preferably, a leg 33 is welded on the lower rectangular tube 31 of the clamping part 3 , and the leg 33 is in the shape of a channel steel with an opening facing downwards, mainly for supporting.

The above descriptions are only preferred embodiments of the present invention, and all equal changes and modifications made in accordance with the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims (4)

1. the dry-type transformer that tool winding wire material use quantity is few, includes iron core, is wound on the coil on iron core, and for clamping the clamping part of iron core; It is characterized in that: the coiling moulding of its cross section of coil is made up of four arcs, be wherein two sections of class semicircle segmental arcs that its two free end of two semicircular is thrown off outwardly along its length, broad ways is the two sections of wide arc sections coupled together with tangential manner at the two ends of these two sections of class semicircle segmental arcs.

2. the dry-type transformer that a kind of tool winding wire material use quantity as claimed in claim 1 is few, is characterized in that: the side of described coil is also convexly equipped with some binding posts.

3. the dry-type transformer that a kind of tool winding wire material use quantity as claimed in claim 1 is few, it is characterized in that: described clamping part has up and down four rectangular square tube of a group between two, the two lateral walls of these two groups of its each pipes of rectangular square tube offers civilian dress hole and assembly hole respectively, the aperture in this civilian dress hole is greater than the aperture of assembly hole, runs through to stretch into upper and lower two groups of rectangular square tube are carried out clamping assembling by assembly hole and assembly cooperation by civilian dress hole.

4. the dry-type transformer that a kind of tool winding wire material use quantity as claimed in claim 3 is few, is characterized in that: the leg lower group of rectangular square tube of described clamping part being also welded with downward opening channel-section steel shape.