Low-loss ferrite core
By setting arc plates, thermal conduction layers, through grooves and heat dissipation holes on the ferrite core, the impact of traditional magnetic core structure on magnetic flux loss is solved, and the effect of low loss and high-efficiency heat dissipation is achieved.
Patent Information
- Application Number
- CN202420836460.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The structure and materials of traditional ferrite magnetic cores have a great impact on their magnetic flux loss, resulting in limited performance of inductive components.
Design a low-loss ferrite magnetic core. By setting an arc plate and a thermal conductive layer on the core body, and opening a through groove and a placing groove on the top, fixing the connection of the cylinder column, and opening a heat dissipation hole on the outside of the cylinder column, so as to Reduce heat conduction and improve heat dissipation.
It effectively reduces the loss of ferrite core, improves heat dissipation effect, reduces temperature, and thus reduces flux loss.
Smart Images
Figure CN222145957U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ferrite cores, in particular to a low-loss ferrite core. Background Art
[0002] Ferrite core is a high-frequency magnetic material (the principle is the same as silicon steel sheet, but it is used in high-frequency environment). It is mainly used for high-frequency transformers (such as switching power supplies, line output transformers, etc.), high-frequency magnetic rings (for anti-interference), etc. It can increase the magnetic permeability and improve the inductance quality factor. It is mainly used in transformers. Ferrite core is mainly composed of three metal elements: iron (Fe), manganese (Mn), and zinc (Zn). It is usually called manganese-zinc ferrite. Ferrite core has a lot of specifications and sizes. According to the different materials of the core, it can be selected, and different coatings can be used to simplify winding and increase the breakdown voltage. Ferrite core is made of dense and homogeneous ceramic structure non-metallic magnetic material with low coercive force, also known as soft ferrite. It is composed of iron oxide (Fe2O3) and one or more oxides or carbonate compounds of other metals (such as manganese, zinc, nickel, magnesium). The ferrite raw material is pressed, sintered at 1300℃, and finally machined into a finished magnetic core that meets the application requirements. Compared with other types of magnetic materials, the advantages of ferrite are high magnetic permeability, high resistance and low eddy current loss over a wide frequency range.
[0003] The main structure of traditional inductor components is ferrite core. The structure, volume and material of ferrite core have a certain influence on its performance, especially the structure of ferrite core, which has a particularly important influence on its magnetic flux loss. Therefore, a low-loss ferrite core is proposed. Utility Model Content
[0004] The purpose of the utility model is to provide a low-loss ferrite core to solve the problem mentioned in the above background technology that the main structure of the traditional inductor element is the ferrite core, and the structure, volume and material of the ferrite core have a certain impact on its performance, especially the structure of the ferrite core, which has a particularly important impact on its magnetic flux loss.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-loss ferrite core, comprising a ferrite core body, a plurality of arc-shaped plates are arranged on the ferrite core body, a heat-conducting layer is arranged on the outer sides of the plurality of arc-shaped plates, a plurality of through grooves are opened on the top of the ferrite core body, and a cylindrical column is fixedly connected to the ferrite core body.
[0006] As a further preferred embodiment of the technical solution: a placement groove is provided at the top of the ferrite core body at one end of the through groove, and the placement groove is communicated with the through groove.
[0007] As a further preferred embodiment of the present technical solution: a plurality of heat dissipation holes are provided on the outer side of the cylinder.
[0008] As a further preferred embodiment of the technical solution: the cylinder is located at the top center of the ferrite core body, and the placement groove is located between two of the arc-shaped plates.
[0009] As a further preferred embodiment of the present technical solution: a plurality of the arc-shaped plates are evenly distributed on the outside of the column.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model arranges a through groove on the ferrite core body so that the bottom of the coil is located above the through groove, thereby reducing the contact area and reducing the heat conduction, and at the same time can dissipate the heat of the coil and the ferrite core body, thereby reducing the temperature and reducing the loss of the ferrite core body; by arranging a heat-conducting layer on the outer side of the arc plate, the extraction of the ferrite core body can be accelerated, the heat dissipation effect of the ferrite core body can be improved, and the loss of the ferrite core body can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0012] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0013] Figure 2 It is a schematic diagram of the top view structure of the utility model;
[0014] Figure 3 This is a schematic diagram of the bottom structure of the utility model;
[0015] Figure 4 It is a schematic diagram of the column structure of the utility model.
[0016] Explanation of the accompanying drawings: 1. ferrite core body; 2. arc-shaped plate; 3. through groove; 4. placement groove; 5. heat-conducting layer; 6. cylinder; 7. heat dissipation hole. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.
[0019] Example
[0020] In the prior art, the main structure of the inductor element is the ferrite core. The structure, volume and material of the ferrite core have a certain impact on its performance, especially the structure of the ferrite core, which has a particularly important impact on its magnetic flux loss.
[0021] See also Figure 1-4 The utility model provides a technical solution: a low-loss ferrite core, comprising a ferrite core body 1, a plurality of arc-shaped plates 2 are arranged on the ferrite core body 1, and a heat-conducting layer 5 is arranged on the outer side of the plurality of arc-shaped plates 2. The heat-conducting layer 5 is arranged on the outer side of the arc-shaped plates 2, so that the ferrite core body 1 can be accelerated to be led out, the heat dissipation effect of the ferrite core body 1 can be improved, and the loss of the ferrite core body 1 can be reduced; a plurality of through slots 3 are provided on the top of the ferrite core body 1, and a placement slot 4 is provided at one end of the top of the ferrite core body 1 located at the through slot 3, and the placement slot 4 is connected with the through slot 3. The through slot 3 is arranged on the ferrite core body 1, so that the bottom of the coil is located above the through slot 3, and the contact area is reduced, thereby reducing the conduction of heat, and at the same time, the coil and the ferrite core body 1 can be cooled, and the temperature is reduced, thereby reducing the loss of the ferrite core body 1;
[0022] A cylinder 6 is fixedly connected to the ferrite core body 1. Through the setting of the cylinder 6 on the ferrite core body 1, the coil can be wound around the outside of the cylinder 6; the cylinder 6 is located at the top center of the ferrite core body 1, and the placement groove 4 is located between two of the arc plates 2. The placement groove 4 can facilitate the placement and positioning of the coil wire end.
[0023] A plurality of heat dissipation holes 7 are provided on the outer side of the cylinder 6 , and the coil can be cooled during the use of the ferrite core body 1 by providing the plurality of heat dissipation holes 7 . A plurality of arc plates 2 are evenly distributed on the outer side of the cylinder 6 .
[0024] The working principle or structural principle is that by setting the cylinder 6 on the ferrite core body 1, the coil can be wound around the outside of the cylinder 6, and by setting a plurality of heat dissipation holes 7, the coil can be cooled during the use of the ferrite core body 1; a through groove 3 is set on the ferrite core body 1, so that the bottom of the coil is located above the through groove 3, and the contact area is reduced to reduce the heat conduction, and the coil and the ferrite core body 1 can be cooled at the same time, and the temperature is reduced to reduce the loss of the ferrite core body 1; by setting a heat-conducting layer 5 on the outside of the arc plate 2, the ferrite core body 1 can be accelerated. The heat dissipation effect of the ferrite core body 1 is improved and the loss of the ferrite core body 1 is reduced; the placement groove 4 can facilitate the placement and positioning of the coil wire head.
[0025] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.
[0026] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.
[0027] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A low-loss ferrite core, comprising a ferrite core body (1), characterized in that: The ferrite core body (1) is provided with a plurality of arc-shaped plates (2), the outer sides of the plurality of arc-shaped plates (2) are provided with a heat-conducting layer (5), the top of the ferrite core body (1) is provided with a plurality of through slots (3), and the ferrite core body (1) is fixedly connected with a cylinder (6).
2. A low-loss ferrite core according to claim 1, characterized in that: A placement groove (4) is provided at the top of the ferrite core body (1) at one end of the through groove (3), and the placement groove (4) is connected to the through groove (3).
3. A low-loss ferrite core according to claim 1, characterized in that: A plurality of heat dissipation holes (7) are provided on the outer side of the cylinder (6).
4. A low-loss ferrite core according to claim 2, characterized in that: The cylinder (6) is located at the top center of the ferrite core body (1), and the placement groove (4) is located between two of the arc-shaped plates (2).
5. The low-loss ferrite core according to claim 1, characterized in that: A plurality of the arc-shaped plates (2) are evenly distributed and arranged on the outside of the cylinder (6).