CN214476868U

CN214476868U - Magnetic integration device

Info

Publication number: CN214476868U
Application number: CN202023352106.8U
Authority: CN
Inventors: 卢章庆; 黄剑奋; 杨荣华
Original assignee: Shenzhen Kcan New Energy Technology Co ltd
Current assignee: Shenzhen Kcan New Energy Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-22
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a magnetism integrated device relates to transformer technical field, including magnetism spare, inside transformer unit, resonance unit and the filtering unit of being equipped with of magnetism spare, transformer unit is located between resonance unit and the filtering unit, and transformer unit, resonance unit and filtering unit three mutually support with magnetism spare and constitute the closed magnetic circuit of keeping away from the air gap, the utility model discloses a structural improvement uses magnetism integrated technology, all integrates all magnetism spares on a transformer, reduces the volume of whole magnetism spare, realizes space utilization maximize to the device can support the high frequency eddy current loss that reduces the coil, and simple structure can extensively use widely.

Description

Magnetic integration device

Technical Field

The utility model relates to a transformer technical field particularly, relates to a magnetism integrated device and circuit structure thereof.

Background

The existing phase-shifted full-bridge circuit has a plurality of electronic components, needs to integrate various inductors and transformers, has too many magnetic components and has overlarge volume. The trend in the power electronics industry is higher and higher power density, and therefore, reducing the volume of magnetic parts is an important direction.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model discloses a magnetism integrated device can reduce the volume of magnetism spare, reduces the high frequency eddy current loss of coil simultaneously.

The utility model provides a technical scheme that its technical problem adopted is: the improvement of the magnetic integration device is that the magnetic integration device comprises a magnetic piece, wherein a transformer unit, a resonance unit and a filter unit are arranged in the magnetic piece, the transformer unit is positioned between the resonance unit and the filter unit, and the transformer unit, the resonance unit and the filter unit are matched with the magnetic piece to form a closed magnetic circuit far away from an air gap.

As a further improvement of the above technical solution, the resonance unit includes a resonance inductance coil magnetic core cylinder, a resonance inductance coil, and a coil magnetic core of a square cylinder, the resonance inductance coil magnetic core cylinder is located in the coil magnetic core, two ends of the resonance inductance coil magnetic core cylinder are abutted to the side wall of the coil magnetic core, and the resonance inductance coil is wound on the resonance inductance coil magnetic core cylinder.

As a further improvement of the technical scheme, the air gap of the inductance magnetic core is arranged at the top of the magnetic core column of the resonance inductance coil, so that the coil is convenient to wind at a position far away from the air gap.

As a further improvement of the above technical scheme, the filtering unit comprises a filtering inductance magnetic core cylinder, a filtering inductance and an inductance magnetic core of a square cylinder, the filtering inductance magnetic core cylinder is located in the inductance magnetic core, two ends of the filtering inductance magnetic core cylinder are abutted against the side wall of the inductance magnetic core, and the filtering inductance is wound on the filtering inductance magnetic core cylinder.

As a further improvement of the technical scheme, the air gap of the inductance magnetic core is arranged at the top of the filtering inductance magnetic core column body, so that the coil is convenient to wind at a position far away from the air gap.

As a further improvement of the above technical solution, the transformer unit includes a transformer magnetic core cylinder, a transformer primary coil, a transformer secondary coil, and a transformer magnetic core of a square cylinder, the transformer magnetic core cylinder is located in the transformer magnetic core, one end of the transformer magnetic core cylinder abuts against a side wall of the transformer magnetic core, a gap is reserved between the other end of the transformer magnetic core cylinder and the side wall of the transformer magnetic core, the transformer magnetic core cylinder divides the transformer magnetic core into an upper transformer magnetic core and a lower transformer magnetic core, and the transformer primary coil and the transformer secondary coil are respectively wound around two ends of the transformer magnetic core cylinder.

As a further improvement of the technical scheme, the air gap of the transformer magnetic core is arranged at the top of the transformer magnetic core column, so that the coil is conveniently wound at a position far away from the air gap.

The utility model has the advantages that: the magnetic integration technology is used, all magnetic parts are integrated on one transformer, the size of the whole magnetic part is reduced, the maximization of the space utilization rate is realized, and the device can support the reduction of the high-frequency eddy current loss of the coil, is simple in structure and can be widely popularized and used.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a circuit diagram of the integrated transformer of the present invention.

1. The transformer comprises a transformer unit, 2, a resonance unit, 3, a filter unit, 21, a resonance inductance coil, a magnetic core, 20 columns, 22, a resonance inductance coil, 23, a coil magnetic core, 200, an upper coil magnetic core body, 201, a lower coil magnetic core body, 31, a filter inductance magnetic core column, 32, a filter inductance, 33, an inductance magnetic core, 300, an upper inductance magnetic core body, 301, a lower inductance magnetic core body, 11, a transformer magnetic core column, 12, a transformer primary coil, 13, a transformer secondary coil, 14, a transformer magnetic core, 100, an upper transformer magnetic core body, 101, a lower transformer magnetic core body and 400, wherein the gap is formed between the upper transformer magnetic core body and the lower transformer magnetic core body.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The utility model discloses each technical feature in the creation can the interactive combination under the prerequisite that does not contradict conflict each other.

Referring to fig. 3, the utility model discloses a magnetism integrated device, including magnetism spare, magnetism spare inside is equipped with transformer unit 1, resonance unit 2 and the filter unit 3, transformer unit 1 is located between resonance unit 2 and the filter unit 3, and transformer unit 1, resonance unit 2 and the 3 three of filter unit mutually support with magnetism spare and constitute the closed magnetic circuit of keeping away from the air gap.

In the above embodiment, the transformer unit 1, the resonance unit 2, and the filter unit 3 are integrated, so that the volume of the magnetic member can be reduced.

Further, referring to fig. 2, the resonance unit 2 includes a resonance inductance coil magnetic core cylinder 21, a resonance inductance coil 22 and a coil magnetic core 23 of a square cylinder, the resonance inductance coil magnetic core cylinder 21 is located in the coil magnetic core 23, and both ends of the resonance inductance coil magnetic core cylinder 21 are abutted on the side wall of the coil magnetic core 20, the resonance inductance coil magnetic core cylinder 21 divides the coil magnetic core 23 into a closed upper coil magnetic core 200 and a closed lower coil magnetic core 201, the resonance inductance coil 22 is wound on the resonance inductance coil magnetic core cylinder 21 and is far away from the air gap position, the air gap of the coil magnetic core 23 is at the top of the resonance inductance coil magnetic core cylinder 21, and the inside of the upper coil magnetic core and the inside of the lower coil magnetic core are both reserved with a gap 400. 25

In the above embodiment, the gap 400 is reserved inside the upper coil magnetic core 200 and inside the lower coil magnetic core 201, which is favorable for placing the resonant inductor coil magnetic core cylinder 21 and the resonant inductor coil into the coil magnetic core 23 of the square cylinder, and the corresponding coil is far away from the corresponding magnetic core air gap, so that the high-frequency eddy current loss of the coil can be reduced.

Still further, referring to fig. 2, the filtering unit 3 includes a filtering inductor magnetic core cylinder 31, a filtering inductor 32 and a square cylinder inductor magnetic core 33, the filtering inductor magnetic core cylinder 31 is located in the inductor 5 magnetic core 33, two ends of the filtering inductor magnetic core cylinder 31 are abutted against the side wall of the inductor magnetic core 33, the filtering inductor magnetic core cylinder 31 divides the inductor magnetic core 33 into a closed upper inductor magnetic core 300 and a closed lower inductor magnetic core 301, the filtering inductor 302 is wound on the filtering inductor magnetic core cylinder 31 and is away from the air gap, and the air gap of the inductor magnetic core 33 is at the top of the filtering inductor magnetic core cylinder 31. Gaps 400 are reserved 10 inside the upper inductor core body 300 and inside the lower inductor core body 301.

In the above embodiment, the gap 400 is reserved inside the upper inductor core 300 and inside the lower inductor core 301, which is beneficial to placing the filter inductor core cylinder 31 and the filter inductor 32 into the inductor core 33 of the square cylinder, and keeping the corresponding coil away from the corresponding core air gap, so that the high-frequency eddy current loss of the coil can be reduced.

In addition, referring to fig. 2, the transformer unit 1 includes a transformer magnetic core cylinder 11, a transformer primary winding 12, a transformer secondary winding 13, and a transformer core 14 having a square cylinder, where the transformer magnetic core cylinder 11 is located in the transformer core 14, one end of the transformer magnetic core cylinder 11 abuts against a side wall of the transformer core 14, and the other end of the transformer magnetic core cylinder 11 and the side wall of the transformer core 14 leave a gap 400 in advance, the transformer magnetic core cylinder 11 divides the transformer core 14 into an upper transformer magnetic core 100 and a lower transformer magnetic core 101, and the transformer primary winding 12 and the transformer secondary winding 13 are respectively wound around two ends of the transformer magnetic core cylinder 11 and both ends are far away from an air gap. The air gap of transformer core 14 is at the top of transformer core post 11, and a gap 400 is reserved inside transformer core 100 and inside lower transformer core 101.

In the above embodiment, the primary winding 12 of the transformer, the secondary winding 13 of the transformer and the transformer core 14 of the transformer 25 have a coupling relationship, a gap 400 is reserved inside the upper transformer magnetic core 100 and inside the core 101 of the lower transformer magnetic core 5, and a gap 400 is reserved between the other end of the transformer magnetic core column 11 and the side wall of the transformer core 14, so that the corresponding winding is far away from the corresponding core air gap, thereby reducing the high-frequency eddy current loss of the winding.

The utility model has the advantages that: the magnetic integration technology is used, all magnetic parts are integrated on one transformer, the size of the whole magnetic part is reduced, the maximization of the space utilization rate is realized, and the device can support the reduction of the high-frequency eddy current loss of the coil, is simple in structure and can be widely popularized and used. While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The magnetic integration device is characterized by comprising a magnetic piece, wherein a transformer unit, a resonance unit and a filter unit are arranged in the magnetic piece, the transformer unit is positioned between the resonance unit and the filter unit, and the transformer unit, the resonance unit and the filter unit are matched with the magnetic piece to form a closed magnetic circuit far away from an air gap.

2. A magnetic integration device according to claim 1, wherein the resonant unit comprises a resonant inductor core cylinder, a resonant inductor and a square cylinder coil core, the resonant inductor core cylinder is located in the coil core, and two ends of the resonant inductor core cylinder are abutted against the side walls of the coil core, and the resonant inductor is wound on the resonant inductor core cylinder and is far away from the air gap position.

3. A magnetic integration device according to claim 2, wherein the air gap of the coil core is at the top of the legs of the resonant inductor core.

4. A magnetic integration device according to claim 1, wherein the filtering unit comprises a filtering inductor core column, a filtering inductor and a square column inductor core, the filtering inductor core column is located in the inductor core, and two ends of the filtering inductor core column abut against the side walls of the inductor core, the filtering inductor is wound on the filtering inductor core column and is far away from the air gap.

5. A magnetically integrated device according to claim 4, wherein the air gap of the inductor core is at the top of the legs of the filter inductor core.

6. A magnetic integration device according to claim 1, wherein the transformer unit comprises a transformer core cylinder, a transformer primary coil, a transformer secondary coil and a transformer core of a square cylinder, the transformer core cylinder is located in the transformer core, one end of the transformer core cylinder abuts against the side wall of the transformer core, a gap is reserved between the other end of the transformer core cylinder and the side wall of the transformer core, the transformer core cylinder divides the transformer core into an upper transformer core and a lower transformer core, and the transformer primary coil and the transformer secondary coil are wound on two ends of the transformer core and are both far away from the air gap.

7. A magnetically integrated device according to claim 6, wherein the air gap of the transformer core is at the top of the transformer core leg.