CN204792367U - Transformer skeleton - Google Patents

Abstract

The utility model provides a transformer skeleton, relates to transformer technical field, and its structure is including being used for inserting the window of establishing the iron core and being located two wire casings of window both sides, the utility model discloses a be 2 with prior art's the window width and the proportion of a wire casing width: 1 change 8 into: 5, contract promptly small access window's width, and increase wire casing width for a lot of enameled wire that winds of wire casing, the number of turns of enameled wire is many, then inserts the window width of the skeleton of the wide adaptable transformer of tongue of the iron core of window and does forer a short time, just can reduce the iron loss, reduces no -load loss promptly.

Description

A kind of transformer framework

Technical field

The utility model relates to transformer technology field, particularly relates to a kind of transformer framework.

Background technology

Skeleton, has another name called transformer framework, or transformer coil holder, is the agent structure part of transformer.Transformer is widely used at society, and corresponding main body is also essential, so skeleton has irreplaceable effect.

The transformer framework of prior art, there is a variety of model, the structure of the transformer framework that different models is corresponding different, such as the skeleton of EE type has: EE10, EE13, EE16, EE19, EE20, EE22, EE25, EE28, EE30 and EE33 etc., the skeleton of EC type has: EC22, EC25, EC28/28, EC28/34 and EC35 etc., the skeleton of UF type has: UF9.8, UF10.5 and UF16, the skeleton of EFD type has: EFD15, EFD20, EFD25 and EFD2025 plastic skeleton etc., the skeleton of EI type has: EI41 and EI28 etc., the size of the transformer framework of each model has certain standard, general production is produced house and is produced according to the size of standard, such as model is the transformer framework of EI41, its window is 13.5mm, the wire casing height of skeleton is 6.75mm, namely the ratio of window and wire casing width is 2:1, the size of the transformer framework of this standard design, in the process used, find that no-load loss is larger.

The no-load loss mainly core loss of transformer, it is made up of magnetic hysteresis loss and eddy current loss.Magnetic hysteresis loss is directly proportional to permeability magnetic material, and is directly proportional to the quadratic power of magnetic flux density; And the thickness of the quadratic power of eddy current loss and magnetic flux density, the quadratic power of permeability magnetic material thickness, the quadratic power of frequency and permeability magnetic material is directly proportional, therefore, reduce no-load loss and will reduce magnetic flux density, its result increases causing the weight of permeability magnetic material.The another kind of method reducing no-load loss adopts high magnetic conduction, low-loss permeability magnetic material, or adopt the permeability magnetic material that thickness is thinner, but its result all causes the increase of transformer cost, and excessively thin silicon steel sheet makes the reduction of the flatness of magnetic core cause the mechanical strength of magnetic core to reduce.

Utility model content

The purpose of this utility model is avoid weak point of the prior art and provide a kind of transformer framework, and the no-load loss of this transformer framework is little.

The purpose of this utility model is achieved through the following technical solutions:

A kind of transformer framework is provided, comprises the window for plugging iron core and two wire casings being positioned at described window both sides, it is characterized in that: described window and the ratio of wire casing width described in one of them are 8:5.

Described window and two described wire casing width summations are 27mm.

The width of described window is 12mm.

A described wire casing width is 7.5mm.

Described transformer framework is provided with plug-in unit pin.

The beneficial effects of the utility model: the utility model comprises the window for plugging iron core and is positioned at two wire casings of described window both sides, the utility model is that 2:1 changes 8:5 into by the ratio of the width of the window by prior art and the width of a wire casing, namely the width of window is reduced, and increase the width of wire casing, make wire casing can how around enamelled wire, the number of turn of enamelled wire is many, the wide window width adapting to the skeleton of transformer of tongue then inserting the iron core of window does less, just can reduce iron loss, namely reduce no-load loss.

Accompanying drawing explanation

Accompanying drawing is utilized to be described further utility model, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.

Fig. 1 is the overall structure schematic diagram at first visual angle of a kind of transformer framework of the present utility model.

Fig. 2 is the overall structure schematic diagram at second visual angle of a kind of transformer framework of the present utility model.

Fig. 3 is the overall structure schematic diagram at the 3rd visual angle of a kind of transformer framework of the present utility model.

Include in figure:

1---window;

2---wire casing;

W1---window width;

W2---wire casing width.

Embodiment

With the following Examples the utility model is further described.

A kind of transformer framework of the present embodiment, as shown in Figures 1 to 3, comprise for plugging the window 1 of iron core and being positioned at two wire casings 2 of described window 1 both sides, in the present embodiment, the ratio of described window 1 and described wire casing 2 width is 8:5.

The present embodiment is that 2:1 changes 8:5 into by the ratio of the width of the window 1 by prior art and the width of a wire casing 2, namely the width of window 1 is reduced, and increase the width of wire casing 2, make wire casing 2 can how around enamelled wire, the number of turn of enamelled wire is many, the wide width adapting to the window 1 of the skeleton of transformer of tongue then inserting the iron core of window 1 does less, just can reduce iron loss, namely reduce no-load loss.

Wherein, described window 1 and two described wire casing 2 width summations are 27mm, and the present embodiment is that the transformer framework being EI41 for model improves, and the improvement of structure does not affect the overall dimension of transformer framework.

Wherein, the width of described window 1 is 12mm, and can insert the wide iron core for 11.5mm of tongue, and the transformer that model is EI41 was use the wide iron core for 13mm of tongue originally, like this, the tongue of iron core is wide to be reduced, and naturally just reduces iron loss.

Wherein, described wire casing 2 width is 7.5mm, and to be the transformer of EI41 be model originally uses wire casing 2 to be the transformer framework of 6.75mm, wire casing 2 width is increased to 7.5mm, then can how around enamelled wire, the tongue reducing iron core is wide, and then reduction iron loss, namely reduce no-load loss.

The described transformer framework of the present embodiment is provided with plug-in unit pin, certainly, also can be the pin of paster.

Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection range; although done to explain to the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of technical solutions of the utility model.

Claims (5)

1. a transformer framework, comprising the window for plugging iron core and two wire casings being positioned at described window both sides, it is characterized in that: described window and the ratio of wire casing width described in one of them are 8:5.

2. a kind of transformer framework as claimed in claim 1, is characterized in that: described window and two described wire casing width summations are 27mm.

3. a kind of transformer framework as claimed in claim 2, is characterized in that: the width of described window is 12mm.

4. a kind of transformer framework as claimed in claim 3, is characterized in that: a described wire casing width is 7.5mm.

5. a kind of transformer framework as claimed in claim 1, is characterized in that: described transformer framework is provided with plug-in unit pin.