CN205104342U - Many magnetic circuits transformer - Google Patents

Abstract

The utility model discloses a multi-magnetic circuit transformer, which comprises an iron core; a plurality of primary coils, the plurality of primary coils are hollow cubes with the same width and size, and the plurality of primary coils are arranged side by side and sleeved on the iron core; The primary coil, the secondary coil is a U-shaped coil, and the U-shaped coil is sleeved on the outside of a plurality of primary coils; two connecting terminals are electrically connected to the two ends of the opening of the U-shaped coil. In the utility model, the primary coils are arranged side by side, the secondary coil is a U-shaped coil and is sheathed on the outside of the primary coil, the coil structure is simple and reasonable, the manufacturing process is simple, the space of the transformer is greatly reduced, and the cost is reduced.

Description

Multi Magnetic Transformer

technical field

The utility model belongs to the technical field of transformers, in particular to a multi-magnetic circuit transformer.

Background technique

A transformer is a device that transforms AC voltage, current and impedance. The transformer is composed of a magnetic core and a coil. The coil has two or more windings. The winding and the magnetic core are collectively called the power transformer body, which is the circuit part that establishes the magnetic field and transmits electric energy. , in principle, the magnetic core is the magnetic circuit that constitutes the transformer, which converts the electrical energy of the primary circuit into magnetic energy, and then converts the magnetic energy into the electrical energy of the secondary circuit. Therefore, the magnetic core is the medium of energy transmission. In terms of structure , The magnetic core is the skeleton of the transformer, and the insulated coils are placed on the magnetic core posts, and they are firmly supported and pressed. The coil has two or more windings, and the winding connected to the power supply is called The primary coil and the remaining windings are called secondary coils.

The winding is divided into input winding and output winding according to the function. The input winding converts electric energy into magnetic field energy, and the output winding converts magnetic energy into electric energy output. Transformation is realized through the different turns of the input winding and the output winding. The performance of the transformer is basically Depends on the winding.

The multi-magnetic circuit transformer uses a transformer composed of several separate magnetic circuits together with a stepless voltage regulator whose capacity is 1/N of the output capacity, which can expand the capacity several times and realize large-capacity continuous on-load voltage regulation. . In the prior art, multiple primary coils are required when making multi-magnetic circuit transformers, and the primary coils generally adopt cylindrical shapes with different diameters. In this way, the structure of the corresponding secondary coils is more complicated, the manufacturing process is complicated, and the floor space is large. , the cost is also high.

Utility model content

In order to solve the above technical problems, the utility model provides a multi-magnetic circuit transformer.

In order to achieve the above object, the technical scheme of the utility model is as follows:

The utility model provides a multi-magnetic circuit transformer, comprising:

Iron core;

A plurality of primary coils, the plurality of primary coils are hollow squares with the same width and size, and the plurality of primary coils are arranged side by side and sleeved on the iron core;

A secondary coil, the secondary coil is a U-shaped coil, and the U-shaped coil is sleeved on the outside of a plurality of primary coils;

Two connecting terminals are respectively electrically connected to the two ends of the opening of the U-shaped coil.

In the utility model, the primary coils are arranged side by side, the secondary coil is a U-shaped coil and is sheathed on the outside of the primary coil, the coil structure is simple and reasonable, the manufacturing process is simple, the space of the transformer is greatly reduced, and the cost is reduced.

In order to facilitate connection, the above-mentioned connecting terminal of the utility model includes a first connecting part and a second connecting part extending along the first connecting part, the first connecting part and the second connecting part form a T-shaped structure, and the first connecting part and the U-shaped The open ends of the coil are electrically connected.

On the basis of the above-mentioned technical scheme, the following improvements can also be made:

As a preferred solution, the surfaces of the above-mentioned multiple primary coils are provided with an insulating layer and connected together through the insulating layer, and the center of each primary coil is provided with a through hole for the iron core to pass through.

With the above preferred solution, the surfaces of the plurality of primary coils are provided with an insulating layer and connected as a whole through the insulating layer, which is convenient for production and installation.

For the convenience of installation and use, as a preferred solution, the length dimensions of the above-mentioned plurality of primary coils are gradually reduced along the bottom of the U-shaped coil toward the opening direction.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the present invention.

Fig. 2 is a top view of an embodiment of the utility model.

Fig. 3 is a side view of an embodiment of the utility model.

Among them, 10. Iron core, 20. Primary coil, 30. Secondary coil, 40. Connecting terminal.

detailed description

Preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

In order to achieve the purpose of the utility model, as shown in Fig. 1 to Fig. 3, a multi-magnetic circuit transformer is provided in one embodiment of the utility model, including:

Core 10;

Three primary coils 20, the three primary coils 20 are hollow cubes with the same width and size, the three primary coils 20 are arranged side by side and sleeved on the iron core 10;

The secondary coil 30, the secondary coil 30 is a U-shaped coil, and the U-shaped coil is sleeved on the outside of the three primary coils;

Two connecting terminals 40 are electrically connected to the two ends of the U-shaped coil respectively.

In this embodiment, the primary coils 20 are arranged side by side, and the secondary coil 30 is a U-shaped coil and is sleeved on the outside of the primary coil 30. The coil structure is simple and reasonable, and the manufacturing process is simple, which greatly reduces the space of the transformer and reduces the cost.

In order to facilitate connection, the connection terminal 40 in this embodiment includes a first connection part and a second connection part extending along the first connection part, the first connection part and the second connection part form a T-shaped structure, and the first connection part and the U The two ends of the opening of the type coil are electrically connected.

In order to further optimize the implementation effect of the present utility model, in another embodiment of the present utility model, on the basis of the foregoing content, the surfaces of the multiple primary coils 20 are provided with an insulating layer and are connected as a whole through the insulating layer, each The center of each primary coil 20 is provided with a through hole for the iron core to pass through.

With the above preferred solution, the surfaces of the plurality of primary coils 20 are provided with an insulating layer and connected as a whole through the insulating layer, which is convenient for production and installation.

In order to facilitate installation and use, and further optimize the implementation effect of the utility model, in another embodiment of the utility model, on the basis of the foregoing, the length dimension of the above-mentioned primary coil 20 is along the bottom of the U-shaped coil to the opening The direction is set to taper.

The above is only the preferred embodiment of the utility model, it should be pointed out that, for those of ordinary skill in the art, without departing from the inventive concept of the utility model, some deformations and improvements can also be made. Belong to the protection scope of the utility model.

Claims (4)

1. The multi-magnetic circuit transformer is characterized in that, comprising: Iron core; A plurality of primary coils, the plurality of primary coils are hollow squares with the same width and size, and the plurality of primary coils are arranged side by side and sleeved on the iron core; A secondary coil, the secondary coil is a U-shaped coil, and the U-shaped coil is sleeved on the outside of the plurality of primary coils; Two connecting terminals are respectively electrically connected to the two ends of the opening of the U-shaped coil. 2. The multi-magnetic circuit transformer according to claim 1, characterized in that, the surfaces of the plurality of primary coils are provided with an insulating layer and are connected as a whole through the insulating layer, and the center of each primary coil is provided with a The through hole through which the iron core passes. 3. The multi-magnetic circuit transformer according to claim 1, wherein the connecting terminal comprises a first connecting portion and a second connecting portion extending along the first connecting portion, the first connecting portion is connected to the The second connection part forms a T-shaped structure, and the first connection part is electrically connected to both ends of the opening of the U-shaped coil. 4 . The multi-magnetic circuit transformer according to claim 1 , wherein the lengths of the plurality of primary coils are gradually reduced along the bottom of the U-shaped coil toward the opening.