CN202839211U

CN202839211U - Interference prevention choking coil

Info

Publication number: CN202839211U
Application number: CN 201220372983
Authority: CN
Inventors: 李正中; 胡纯华
Original assignee: Dongguan Dazhong Electronics Co Ltd
Current assignee: Dongguan Dazhong Electronics Co Ltd
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2013-03-27
Anticipated expiration: 2022-07-31

Abstract

The utility model relates to the technical field of inductance elements, in particular to an interference prevention choking coil. The interference prevention choking coil comprises an annular magnetic core, a magnetic ring partition, an epoxy bottom plate, a first winding group and a second winding group, wherein the annular magnetic core is provided with an outer ring and an inner ring; the first winding group is wound at a first position between the outer ring and the inner ring, and comprises two coils; a leading position of a first lead wire of the first winding group is arranged in the middle of the first winding group; the second winding group is wound at a second position between the outer ring and the inner ring, and comprises two coils; and a leading position of a second lead wire of the second winding group is arranged in the middle of the second winding group. The interference prevention choking coil has the benefits that 1, magnetic leakage is small; distributed capacitance is large; interference to other components is reduced; 2, a frequency characteristic is better; direct current resistance is raised to a higher level; the efficiency is higher; and 3, noise of a complete machine is reduced; and a better mute effect is achieved.

Description

A kind of choke of disturbing of preventing

Technical field

The utility model relates to the inductance element technical field, particularly relates to a kind of choke of disturbing of preventing.

Background technology

Choke is anti-inductive coil of gripping alternating current.Utilize coil reactance and frequency proportional, can control high-frequency ac current, allow low frequency and direct current pass through.

The choke of prior art, as shown in Figure 1 and Figure 2, comprise toroidal core 1, the first winding 6, the second winding 8, magnet ring dividing plate 2 and epoxy base plate 3, because direction of winding 12 as shown in Figure 1, the first lead-in wire 7 of the first winding 6 is drawn from the bottom that is positioned at the first winding 6; The second lead-in wire 9 of the second winding 8 is drawn from the bottom that is positioned at the second winding 8; The choke of said structure has following shortcoming:

1, leakage field is large, and distributed capacitance is little, disturbs larger to other components and parts;

2, the poor and dc impedance of frequency characteristic is without lifting, and efficient is low;

3, do not reach the complete machine decrease of noise functions.

Summary of the invention

The purpose of this utility model is to avoid weak point of the prior art and a kind of choke of disturbing of preventing is provided.

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

A kind of choke of disturbing of preventing comprises toroidal core, magnet ring dividing plate and epoxy base plate, and toroidal core has outer ring and inner ring, also comprises:

The first winding is wound in the primary importance between outer ring and the inner ring, and comprises two-layer coil, and the extraction location of the first lead-in wire of the first winding is arranged at the middle part of the first winding;

The second winding is wound in the second place between outer ring and the inner ring, and comprises two-layer coil, and the extraction location of the second lead-in wire of the second winding is arranged at the middle part of the second winding.

Further, the magnet ring dividing plate is along the symmetrical center line setting of the first winding and the second winding, and is positioned at the middle part of toroidal core.

Further, the epoxy base plate be fixed in toroidal core the outer ring and with the setting of magnet ring divider upright, second of the first lead-in wire of the first winding and the second winding goes between and to be fixed in respectively the epoxy base plate.

Further, the first lead-in wire and the second lead-in wire are by the black gluing epoxy base plate that is connected to of epoxy.

Further, the two ends of magnet ring dividing plate arrange the dividing plate seat, and are affixed by the dividing plate seat between magnet ring dividing plate and the toroidal core.

Further, the two ends of magnet ring dividing plate are by the black gluing dividing plate seat that is connected to of epoxy.

The beneficial effects of the utility model:

A kind of choke of disturbing of preventing of the present utility model, it adopts the first winding and the second winding to be equipped with two-layer coil, and first the lead-in wire draw from the middle part that is positioned at the first winding, second the lead-in wire draws from the middle part that is positioned at the second winding, compared with prior art, this structure has following characteristics:

(1) leakage field is little, and distributed capacitance is large, has better reduced other components and parts are disturbed;

(2) frequency characteristic is better, and dc impedance rises to higher level, and efficient is higher;

(3) noise of reduction complete machine reaches better muting function.

Description of drawings

Utilize accompanying drawing that the utility model is described further, but the content in the accompanying drawing does not consist of any restriction of the present utility model.

Fig. 1 is the structural representation of the choke of prior art;

Fig. 2 is the end view of Fig. 1;

Fig. 3 is a kind of structural representation that prevents the choke that disturbs of the utility model;

Fig. 4 is the end view of Fig. 3.

In Fig. 1 to Fig. 4, include:

1---toroidal core;

2---the magnet ring dividing plate;

3---the epoxy base plate;

4---the outer ring;

5---inner ring;

6---the first winding;

7---the first lead-in wire;

8---the second winding;

9---the second lead-in wire;

10---epoxy is deceived glue;

11---the dividing plate seat;

12---direction of winding.

Embodiment

The utility model is described in further detail with the following Examples.

A kind of choke of disturbing of preventing described in the utility model, as shown in Figure 3, Figure 4,

A kind of choke of disturbing of preventing comprises toroidal core 1, magnet ring dividing plate 2 and epoxy base plate 3, and toroidal core 1 has outer ring 4 and inner ring 5;

The first winding 6 is wound in the primary importance between outer ring 4 and the inner ring 5, and comprises two-layer coil, and the first lead-in wire 7 of the first winding 6 is drawn from the middle part that is positioned at the first winding 6;

The second winding 8 is wound in the second place between outer ring 4 and the inner ring 5, and comprises two-layer coil, and the second lead-in wire 9 of the second winding 8 is drawn from the middle part that is positioned at the second winding 8.

Concrete: the direction of winding 12 of coiling the first winding 6, as shown in Figure 3, wire from the middle of primary importance around, twine to the far-end that rises around the position respectively at the wire two ends, wire is wound in ground floor coil outside by the two ends of the first winding 6 behind the arrival precalculated position to the middle part, until meet at medium position.

As shown in Figure 3, Figure 4, the winding of the second winding 8 is identical with above-mentioned the first winding 6.Its leakage field of choke that adopts this kind winding method to obtain is little, and distributed capacitance is large, has better reduced other components and parts are disturbed; Frequency characteristic is better, and dc impedance rises to higher level, and efficient is higher; Reduce the noise of complete machine, reach better muting function.

Magnet ring dividing plate 2 is along the symmetrical center line setting of the first winding 6 and the second winding 8, and is positioned at the middle part of toroidal core 1.

Epoxy base plate 3 be fixed in toroidal core 1 outer ring 4 and with the 2 vertical settings of magnet ring dividing plate, the second lead-in wire of the first lead-in wire 7 and second winding 8 of the first winding 69 is fixed in respectively epoxy base plate 3.

The first lead-in wire the 7 and second lead-in wire 9 is adhered to epoxy base plate 3 by the black glue 10 of epoxy.The effect that the black glue 10 of epoxy plays insulation and is adhesively fixed.

The two ends of magnet ring dividing plate 2 arrange dividing plate seat 11, and are affixed by dividing plate seat 11 between magnet ring dividing plate 2 and the toroidal core 1.

The two ends of magnet ring dividing plate 2 are adhered to dividing plate seat 11 by the black glue 10 of epoxy.The effect that the black glue 10 of epoxy plays insulation and is adhesively fixed.

It should be noted that at last: above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.

Claims

1. a choke that prevents from disturbing comprises toroidal core, magnet ring dividing plate and epoxy base plate, and described toroidal core has outer ring and inner ring, it is characterized in that: also comprise:

The first winding is wound in the primary importance between described outer ring and the described inner ring, and comprises two-layer coil, and the extraction location of the first lead-in wire of described the first winding is arranged at the middle part of described the first winding;

The second winding is wound in the second place between described outer ring and the described inner ring, and comprises two-layer coil, and the extraction location of the second lead-in wire of described the second winding is arranged at the middle part of described the second winding.

2. a kind of choke of disturbing of preventing according to claim 1 is characterized in that: described magnet ring dividing plate is along the symmetrical center line setting of described the first winding and described the second winding, and is positioned at the middle part of described toroidal core.

3. a kind of choke of disturbing of preventing according to claim 1, it is characterized in that: described epoxy base plate be fixed in described toroidal core the outer ring and with the setting of described magnet ring divider upright, second of the first lead-in wire of described the first winding and described the second winding goes between and to be fixed in respectively described epoxy base plate.

4. a kind of choke of disturbing of preventing according to claim 1, it is characterized in that: described the first lead-in wire and described the second lead-in wire are deceived the gluing described epoxy base plate that is connected to by epoxy.

5. a kind of choke of disturbing of preventing according to claim 1, it is characterized in that: the two ends of described magnet ring dividing plate arrange the dividing plate seat, and are affixed by described dividing plate seat between described magnet ring dividing plate and the described toroidal core.

6. a kind of choke of disturbing of preventing according to claim 5, it is characterized in that: the two ends of described magnet ring dividing plate are by the black gluing described dividing plate seat that is connected to of epoxy.