CN202711906U

CN202711906U - Filtering inductor

Info

Publication number: CN202711906U
Application number: CN 201220366284
Authority: CN
Inventors: 任育文
Original assignee: Kunshan Dagong Electronics Co Ltd
Current assignee: Kunshan Dagong Electronics Co Ltd
Priority date: 2012-07-27
Filing date: 2012-07-27
Publication date: 2013-01-30
Anticipated expiration: 2022-07-27

Abstract

The utility model discloses a filtering inductor, which is characterized by comprising three stacked annular magnetic cores and a silk covered wire for winding the three stacked annular magnetic cores to form a whole. According to the filtering inductor, the magnetic cores are made of sendust; the silk covered wire covers the sendust cores, so that the filtering inductor is stable in high temperature performance, low in power consumption and relatively large in magnetic flux; sizes of the magnetic cores can be reduced; loss is reduced; a relatively high inductance value is produced; and a using demand on a large inductance value is met.

Description

Filter inductance

Technical field

The utility model relates to a kind of filter inductance, belongs to electronic technology field.

Background technology

Limited by the saturation induction density of magnetic core, especially by under the large current conditions, the easy loss of magnetic core and heating, the inductance value of filter inductance can't be accomplished high value usually, some are needed the application scenario of higher value of inductance, can't satisfy user demand.

The utility model content

Technical problem to be solved in the utility model provides a kind of filter inductance, can produce higher inductance value, satisfies the user demand to large inductance value.

For solving the problems of the technologies described above, the utility model provides a kind of filter inductance, it is characterized in that, comprises 3 toroidal cores that are superimposed and the toroidal core of 3 stacks is twined the all-in-one-piece silk-covered wire.

The material of described toroidal core is the iron sial.

Described silk-covered wire alternately passes interior ring and the outer shroud of described toroidal core, and the toroidal core of 3 stacks is wound in one.

3 described toroidal core is big or small, shape is identical.

The beneficial effect that the utility model reaches:

Filter inductance of the present utility model adopts the iron sial as magnetic core, and adopts the outer wrapping wire envelope curve of 3 annular sendust cores, has stable high-temperature performance, low in energy consumption, magnetic flux is relatively large, can dwindle magnetic core size, reduce the wastage, produce higher inductance value, satisfy the user demand to large inductance value.

Description of drawings

Fig. 1 is filter inductor structure schematic diagram of the present utility model;

Fig. 2 is the vertical view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection range of the present utility model with this.

As shown in Figure 1 and Figure 2, filter inductance of the present utility model comprises 3 toroidal cores that are superimposed 1, and the material of toroidal core 1 is the iron sial, after 3 toroidal core 1 stacks, is wound in one by silk-covered wire 2.When silk-covered wire 2 twines, alternately pass in the ring of magnetic core ring 11 and ring outer 12, the toroidal core 1 of 3 stacks is wound in one.

The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and distortion, these improvement and distortion also should be considered as protection range of the present utility model.

Claims

1. a filter inductance is characterized in that, comprises 3 toroidal cores that are superimposed and the toroidal core of 3 stacks is twined the all-in-one-piece silk-covered wire.

2. filter inductance according to claim 1 is characterized in that, the material of described toroidal core is the iron sial.

3. filter inductance according to claim 1 is characterized in that, described silk-covered wire alternately passes interior ring and the outer shroud of described toroidal core, and the toroidal core of 3 stacks is wound in one.

4. filter inductance according to claim 1 is characterized in that, 3 described toroidal core is big or small, shape is identical.