CN217640924U

CN217640924U - Sectional type air gap skeleton, magnetic component and transformer

Info

Publication number: CN217640924U
Application number: CN202221823385.8U
Authority: CN
Inventors: 刘源锋; 肖铿
Original assignee: Anhui Kelike Technology Co ltd; Anyuan County Meijing Electronics Co ltd; Huizhou Click Technology Co ltd; Shenzhen Click Technology Ltd; Xinfeng Click Technology Co ltd; Huizhou City Click Electronics Co ltd
Current assignee: Anhui Kelike Technology Co ltd; Anyuan County Meijing Electronics Co ltd; Huizhou Click Technology Co ltd; Shenzhen Click Technology Ltd; Xinfeng Click Technology Co ltd; Huizhou City Click Electronics Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-10-21
Anticipated expiration: 2032-07-14

Abstract

The utility model discloses a sectional type air gap skeleton, magnetic components and parts and transformer, sectional type air gap skeleton is arranged in having the magnetic components and parts or the transformer of two above segmentation air gaps, including a plurality of air gap pieces, each the air gap piece is located on the curb plate side by side according to predetermined interval. By using the sectional type air gap framework, all the magnetic sheets are only required to be respectively plugged into the gaps of the adjacent air gap sheets, and all the air gap sheets and the side plates can realize the positioning effect without wrapping insulating paper and adhesive tapes, so that the processing time can be greatly reduced, and in an actual test, the consumed time is only within 1/2 of the air gap operation time of the conventional stacked magnetic sheets. Moreover, because the number of the air gap sheets of the sectional type air gap framework is fixed, and the side plates also have a positioning effect, the sectional type air gap framework can avoid the problems of installation deviation, leakage, misplacement and the like.

Description

Sectional type air gap skeleton, magnetic component and transformer

Technical Field

The utility model relates to a structural design of magnetic components and parts product especially relates to a magnetic components and parts transformer and sectional type air gap skeleton's structural improvement.

Background

Magnetic components commonly used in power electronic products, such as transformers and inductors, generally need to form an air gap for a magnetic core to adjust the inductance of the product, and leakage of magnetic lines of force near the air gap can form eddy currents, thereby generating loss and heat. In a product with multiple sectional air gaps and segments, air gap sheets and magnetic sheets need to be alternately stacked in normal operation, and then insulating paper or adhesive tapes are wrapped along the outer side, so that the work time is high, errors are easy to occur, the heat dissipation effect is poor, and when the loss and heat generation are serious, the insulation failure of wires can be caused, and finally the product fails. Therefore, there is a need for an improved structure of a magnetic component.

It is to be noted that the information disclosed in the above background section is only for understanding the background of the present application and thus may include information that does not constitute prior art known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, an embodiment of the present application provides a segmented air gap framework, which is used in a magnetic component or a transformer having more than two segmented air gaps, and includes a plurality of air gap pieces, where the air gap pieces are arranged side by side on a side plate according to a preset distance.

The utility model discloses still can adopt following optional/preferred scheme:

the shape of each segmented air gap sheet is consistent with that of each magnetic sheet to be inserted.

The surface of the side plate is a part of the cylindrical surface and is smaller than one half of the cylindrical surface.

The air-gap sheet and the side plates are each made of reinforced glass fibers FR 530.

The air gap piece and the side plate are of an integral structure.

The embodiment of the utility model also provides a magnetic component, which comprises a main magnetic core, a solenoid framework, a coil, a sectional air gap framework, a magnetic sheet and a base; the segmented air gap armature is a segmented air gap armature as described in any of the above; the coil is arranged on the periphery of the coil framework; the plurality of magnetic sheets are respectively inserted between two adjacent air gap sheets in the sectional type air gap framework, and the other end of each magnetic sheet is adhered to the main magnetic core; the solenoid framework is cylindrical, and the sectional air gap framework and the magnetic sheet are positioned in the solenoid framework; the main magnetic core is fixedly connected to the base.

Preferably, the main magnetic core is formed by butting two symmetrical parts.

Further preferably, the base is formed in a square frame shape as a whole.

It is also preferred that the base is made of an insulating material FR-4 or FR 530.

The embodiment of the utility model provides a still provide a transformer, have two above segmentation air gaps, including a plurality of magnetic sheets, through as above arbitrary any between the magnetic sheet the sectional type air gap skeleton keep apart and fix a position.

Compared with the prior art, one or more technical schemes provided in the embodiment of the application have at least the following beneficial effects:

by using the sectional type air gap framework, only the magnetic sheets are respectively plugged into the gaps of the adjacent air gap sheets, and the air gap sheets and the side plates can realize the positioning effect without wrapping insulating paper and adhesive tapes, so that the processing working hours can be greatly reduced, and the consumed working hours are only within 1/2 of the air gap operation working hours of the conventional magnetic sheet stacking operation in the actual test. Moreover, the number of the air gap pieces of the sectional type air gap framework is fixed, and the side plates also have a positioning effect, so that the sectional type air gap framework can avoid the problems of deviation in installation, leakage, misplacement and the like.

The surface of the air gap side plate is a part of the cylindrical surface and is smaller than one half of the cylindrical surface, so that only one half of each magnetic sheet is wrapped, and the other half of each magnetic sheet is exposed, and therefore, the heat dissipation effect is superior to that of the method for wrapping insulating paper or a rubber belt in the prior art.

Drawings

FIG. 1 is a schematic structural view of a segmented air gap armature of an embodiment showing a plurality of magnet pieces coupled thereto;

FIG. 2 is a schematic diagram of an example of the configuration of a magnetic component;

fig. 3 is an exploded view of the magnetic component of fig. 2.

Detailed Description

The present invention is further described with reference to the following figures 1-3 and the detailed description, wherein like reference numerals refer to like parts, unless otherwise specified. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection can be for fixation or for coupling or communication.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example one

A segmented air gap framework 10 is used in a magnetic component or a transformer with more than two segmented air gaps, as shown in figure 1, and comprises a plurality of air gap sheets 101, wherein the air gap sheets 101 are arranged on a side plate 102 side by side according to a preset distance.

The sectional air gap pieces 101 have the same outer shape as the magnetic pieces 30 to be inserted.

The surface of the side plate 102 is a part of the cylindrical surface and is smaller than one half of the cylindrical surface, so that after each magnetic sheet 30 is inserted between the adjacent segmented air gap sheets 101, only part of the magnetic sheet is shielded, and part of the magnetic sheet is exposed, thereby facilitating heat dissipation.

Preferably, the air-gap sheet 101 and the side plate 102 are made of reinforced glass fiber FR 530. In addition, the air gap piece 101 and the side plate 102 are preferably of an integral structure, and are easy to process and low in cost.

The sectional type air gap framework of the embodiment can greatly reduce the processing working hours and has certain fool-proof effect during assembly.

Example two

The embodiment of the present invention further provides a magnetic component, as shown in fig. 2 and 3, including a main magnetic core 20, a coil frame 40, a coil 50, a segmented air gap frame, a magnetic sheet 30 and a base 60. The segmented air gap former is a segmented air gap former 10 as described in any one of the above; the coil 50 is arranged on the periphery of the coil frame 10; the plurality of magnetic sheets 30 are respectively inserted between two adjacent air gap sheets 101 in the segmented air gap frame 10, and the other end of each magnetic sheet 101 is bonded to the main core 20. The coil frame 40 is cylindrical, and the segmented air gap frame 10 and the magnetic sheet 30 are positioned in the coil frame 40; the main magnetic core 20 is fixedly connected to the base 60, and the main magnetic core is preferably formed by two symmetrical parts which are butted with each other, so that the structure is more convenient for product assembly, and the base is preferably a square frame-shaped base as a whole, so that heat dissipation is more facilitated. Furthermore, the base is preferably made of an insulating material FR-4 or FR 530.

The magnetic component of the embodiment has the advantages of convenience in manufacturing and assembling.

EXAMPLE III

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific/preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. For those skilled in the art to which the present invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the present invention, and these alternatives or modifications should be considered as belonging to the protection scope of the present invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Those skilled in the art will be able to combine and combine features of different embodiments or examples and features of different embodiments or examples described in this specification without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the claims.

Claims

1. A segmented air gap framework is used in a magnetic component or a transformer with more than two segmented air gaps and is characterized by comprising a plurality of air gap pieces, wherein the air gap pieces are arranged on side plates side by side according to a preset distance.

2. The segmented air gap armature of claim 1 wherein the segmented air gap pieces have a profile conforming to the profile of the magnet pieces to be inserted.

3. The segmented air gap armature of claim 1, wherein the surface of the side plate is a portion of a cylinder and is less than one-half of the cylinder.

4. The segmented air gap armature of claim 1, 2 or 3, wherein the air gap pieces and the side plates are made of reinforced fiberglass FR 530.

5. The segmented air gap armature of claim 4, wherein the air gap piece and the side plate are a unitary structure.

6. A magnetic component is characterized by comprising a main magnetic core, a coil framework, a coil, a sectional type air gap framework, a magnetic sheet and a base;

the segmented air gap former of any one of claims 1-5;

the coil is arranged on the periphery of the coil frame;

the plurality of magnetic sheets are respectively inserted between two adjacent air gap sheets in the sectional type air gap framework, and the other end of each magnetic sheet is bonded on the main magnetic core;

the coil framework is cylindrical, and the sectional air gap framework and the magnetic sheets are positioned in the coil framework;

the main magnetic core is fixedly connected to the base.

7. The magnetic component of claim 6, wherein the main core is formed by butt-jointing two symmetrical portions.

8. A magnetic component as claimed in claim 6 or 7, wherein the base is generally in the form of a square frame.

9. A magnetic component as claimed in claim 8, wherein the base is made of FR-4 or FR530, which are insulating materials.

10. A transformer having two or more segmented air gaps, comprising a plurality of magnetic pieces separated and positioned by a segmented air gap former as claimed in any one of claims 1 to 5.