CN213844974U

CN213844974U - Compact inductor

Info

Publication number: CN213844974U
Application number: CN202120016766.4U
Authority: CN
Inventors: 李俊华; 杨胜麒; 傅翼
Original assignee: Shanghai Meixing Electronic Co ltd
Current assignee: Shanghai Meixing Electronic Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-07-30
Anticipated expiration: 2031-01-05

Abstract

A compact inductor, comprising: magnetic core structure, coil, bottom plate and PIN, coil and magnetic core structure internal connection, the bottom plate is connected bottom magnetic core structure, and PIN is connected with the bottom plate. Wherein, magnetic core structure includes: the magnetic core comprises a first upper magnetic core block, a second upper magnetic core block, a first side magnetic core block, a second side magnetic core block, a first bottom magnetic core block, a second bottom magnetic core block, a first inner magnetic core block and a second inner magnetic core block. Compared with the prior art, the utility model, through design and change magnetic core structure and equipment mode, can satisfy the performance requirement, can utilize in a flexible way again to adopt the design of copper foil winding structure, can realize heavy current and volume production purpose, the chooseing for use of special magnetic material can obtain wideer temperature application range and very high saturation current.

Description

Compact inductor

Technical Field

The utility model relates to an inductance technical field, concretely relates to compact inductor.

Background

In recent years, with the rise of various new energy sources, various power and current applied to charging piles and communication base station power supplies are increasingly large, and weight reduction and volume reduction are required instead, so that better installation and application popularization are facilitated; the extension brings requirements that the quality of a magnetic device is more reliable, the efficiency is high, the size is small, more loss is reduced, the cost is lower, the weight is light, the size is small, and the magnetic device is suitable for the smallest installation space; especially, the number of the inductors on the charging pile and the power supply of the communication base station is large, the total occupied volume is large, and great troubles are brought to the space design of the power supply. To achieve these objectives, not only is more efficient power conversion required, but also a small-sized, safe and reliable-quality inductor device is required.

In order to solve the above problems, we have made a series of improvements.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a compact inductor to overcome the above disadvantages and shortcomings of the prior art.

A compact inductor, comprising: the magnetic core structure comprises a magnetic core structure, a coil, a bottom plate and a PIN, wherein the coil is connected with the inside of the magnetic core structure, the bottom plate is connected with the bottom of the magnetic core structure, and the PIN is connected with the bottom plate;

wherein the magnetic core structure comprises: the magnetic core comprises a first upper magnetic core block, a second upper magnetic core block, a first side magnetic core block, a second side magnetic core block, a first bottom magnetic core block, a second bottom magnetic core block, a first inner magnetic core block and a second inner magnetic core block, wherein the first upper magnetic core block is connected with the second upper magnetic core block, the first upper magnetic core block and the second upper magnetic core block are connected with the upper parts of the first side magnetic core block and the second side magnetic core block, the first side magnetic core block is connected with the second side magnetic core block, the first bottom magnetic core block and the second bottom magnetic core block are connected with the bottoms of the first side magnetic core block and the second side magnetic core block, the first bottom magnetic core block is connected with the second bottom magnetic core block, the first inner magnetic core block and the second inner magnetic core block are connected with the inside of a magnetic core structure, and the first inner magnetic core block is connected with the second inner magnetic core block.

Further, the coil is a copper foil type winding.

Furthermore, the magnetic core structure is made of alloy powder with a high Bs value, a low loss and a wide temperature condition.

The utility model has the advantages that:

compared with the prior art, the utility model, through design and change magnetic core structure and equipment mode, can satisfy the performance requirement, can utilize in a flexible way again to adopt the design of copper foil winding structure, can realize heavy current and volume production purpose, the chooseing for use of special magnetic material can obtain wideer temperature application range and very high saturation current.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Reference numerals:

a magnetic core structure 100, a first upper magnetic core block 110, a second upper magnetic core block 120, a first side magnetic core block 130, a second side magnetic core block 140, a first bottom magnetic core block 150, a second bottom magnetic core block 160, a first inner magnetic core block 170, and a second inner magnetic core block 180.

Coil 200, backplane 300, and PIN 400.

Detailed Description

The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.

Example 1

Fig. 1 is a schematic structural diagram of the present invention.

As shown in fig. 1, a compact inductor includes: the magnetic core structure comprises a magnetic core structure 100, a coil 200, a bottom plate 300 and a PIN400, wherein the coil 200 is connected with the inside of the magnetic core structure 100, the bottom plate 300 is connected with the bottom of the magnetic core structure 100, and the PIN400 is connected with the bottom plate 300;

wherein, magnetic core structure 100 includes: the magnetic core structure comprises a first upper magnetic core block 110, a second upper magnetic core block 120, a first side magnetic core block 130, a second side magnetic core block 140, a first bottom magnetic core block 150, a second bottom magnetic core block 160, a first inner magnetic core block 170 and a second inner magnetic core block 180, wherein the first upper magnetic core block 110 is connected with the second upper magnetic core block 120, the first upper magnetic core block 110 and the second upper magnetic core block 120 are connected with the upper parts of the first side magnetic core block 130 and the second side magnetic core block 140, the first side magnetic core block 130 is connected with the second side magnetic core block 140, the first bottom magnetic core block 150 and the second bottom magnetic core block 160 are connected with the bottom parts of the first side magnetic core block 130 and the second side magnetic core block 140, the first bottom magnetic core block 150 is connected with the second bottom magnetic core block 160, the first inner magnetic core block 170 and the second inner magnetic core block 180 are connected with the inside the magnetic core structure 100, and the first inner magnetic core block 170 is connected with the second inner magnetic core block 180.

The material of the magnetic core structure 100 is an alloy powder with a high Bs value, a low loss and a wide temperature condition.

The coil 200 is a copper foil type winding.

The utility model discloses an operating principle is, design magnetic core structure 100 adopts the same magnetic core piece of multiunit to assemble to reach the required sectional area requirement of transformer, do not change the magnetic circuit mode, because single magnetic core processing is easy like this, with low costs and do benefit to batch production, with the purpose that reaches the low cost of transformer. By adopting the alloy powder magnetic core with high Bs value, low loss and wide temperature condition, very high saturation current can be obtained without opening the air gap of the magnetic core, the volume is smaller, and meanwhile, the use temperature in a very wide range can be met. Structural design aspect of the coil 200: the traditional enameled wire winding is changed into a copper foil winding, so that large current can be realized, the skin effect can be effectively reduced, the use current can reach 60A, the high-frequency loss is reduced, and the working efficiency of the transformer is improved. The structural installation is fixed by adopting a high-strength adhesive, so that the structure is environment-friendly and healthy and has no peculiar smell; the stability and the reliability of the product are improved. The volume of the traditional magnetic ring structure is 86 × 60mm or 70 × 60mm, the volume of the novel structure is only 113 × 41 × 34mm, the volume is reduced by more than 40%, and the height is reduced by about 50%. The utility model discloses a design and change magnetic core structure and equipment mode, can satisfy the performance requirement, can utilize in a flexible way again to adopt the design of copper foil winding structure, can realize heavy current and volume production purpose, the chooseing for use of special magnetic material can obtain wideer temperature application range and very high saturation current.

The above description has been made of the embodiments of the present invention, but the present invention is not limited thereto, and various changes may be made without departing from the spirit of the present invention.

Claims

1. A compact inductor, comprising: the coil comprises a magnetic core structure (100), a coil (200), a bottom plate (300) and a PIN (400), wherein the coil (200) is connected with the inside of the magnetic core structure (100), the bottom plate (300) is connected with the bottom of the magnetic core structure (100), and the PIN (400) is connected with the bottom plate (300);

wherein the magnetic core structure (100) comprises: a first upper magnetic core block (110), a second upper magnetic core block (120), a first side magnetic core block (130), a second side magnetic core block (140), a first bottom magnetic core block (150), a second bottom magnetic core block (160), a first inner magnetic core block (170) and a second inner magnetic core block (180), wherein the first upper magnetic core block (110) is connected with the second upper magnetic core block (120), the first upper magnetic core block (110) and the second upper magnetic core block (120) are connected with the upper parts of the first side magnetic core block (130) and the second side magnetic core block (140), the first side magnetic core block (130) is connected with the second side magnetic core block (140), the first bottom magnetic core block (150) and the second bottom magnetic core block (160) are connected with the bottom parts of the first side magnetic core block (130) and the second side magnetic core block (140), the first bottom magnetic core block (150) is connected with the second bottom magnetic core block (160), the first inner magnetic core block (170) and the second inner magnetic core block (180) are connected with the inside of the magnetic core structure (100), and the first inner magnetic core block (170) is connected with the second inner magnetic core block (180).

2. A compact inductor as claimed in claim 1, characterized in that: the coil (200) is a copper foil type winding.

3. A compact inductor as claimed in claim 1, characterized in that: the magnetic core structure (100) is made of alloy powder with a high Bs value, a low loss and a wide temperature condition.