High-frequency high-impedance MnZn ferrite magnetic core

By designing a high-frequency and high-impedance MnZn ferrite core that includes a variety of movable connections and fixed connection components, the problem of difficulty in easy connection of existing magnetic cores is solved, and the effect of rapid connection, stable positioning and accelerated heat dissipation is achieved.

CN222980240UActive Publication Date: 2025-06-13HAINING WEIYE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202421951252.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-13
Publication Date
2025-06-13
Estimated Expiration
2034-08-13

AI Technical Summary

Technical Problem

It is difficult to easily connect each set of magnetic cores during use, resulting in more troublesome connections during connection and installation.

Method used

A high-frequency and high-impedance MnZn ferrite magnetic core is designed, and a connection structure including a first magnetic core cylinder, a second magnetic core cylinder, a magnetic core frame, a mounting frame, a connecting cylinder, a positioning cylinder, a connecting shrapnel and a connecting card block are adopted. Through the mutual movement and fixed connection of these components, the rapid connection and stable positioning of the magnetic core are realized.

Benefits of technology

The rapid connection of the magnetic core is achieved and the stability of the magnetic connection is improved. At the same time, the heat dissipation speed is accelerated through the design of the heat sink and the through-slot.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-frequency high-impedance MnZn ferrite magnetic core which comprises a first magnetic core cylinder, the bottom end of the first magnetic core cylinder is movably connected with a second magnetic core cylinder, and one end of the first magnetic core cylinder and one end of the second magnetic core cylinder are respectively and fixedly connected with a group of magnetic core frames. According to the high-frequency high-impedance MnZn ferrite magnetic core, the first mounting frame is arranged, when the magnetic core is connected, the two sets of magnetic core frames are oppositely attached together, and then the first mounting frame and the second mounting frame are connected to the outer portions of the two sets of magnetic core frames in a sleeving mode correspondingly; meanwhile, a first connecting cylinder and a second connecting cylinder can penetrate through the interiors of a first magnetic core cylinder body and a second magnetic core cylinder body, a positioning cylinder at the top end of the first connecting cylinder is inserted into the second connecting cylinder so that the two sets of magnetic core frames can be prevented from deviating, and a connecting elastic piece is inserted into the second connecting cylinder to eject out a connecting clamping block and be inserted into a connecting clamping groove; therefore, the first connecting cylinder and the second connecting cylinder are connected, and the problem that connection is not convenient is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of MnZn ferrite cores, and particularly relates to a high-frequency and high-impedance MnZn ferrite core. Background Art

[0002] MnZn ferrite core is a kind of high-frequency magnetic conductive material, which is sintered with iron, manganese and zinc as the main materials. It is widely used in power equipment and plays a key role. Its functions are to increase the magnetic permeability, improve the inductance quality, and maintain the stable operation of power equipment and circuits.

[0003] However, there are still some defects in the current MnZn ferrite cores during use. When in use, it is not convenient to connect each group of cores, resulting in more trouble during connection and installation.

[0004] Now, a new type of high-frequency and high-impedance MnZn ferrite core is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-frequency and high-impedance MnZn ferrite core to solve the problem of inconvenient connection proposed in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A high-frequency and high-impedance MnZn ferrite core, including a first core cylinder body, the bottom end of the first core cylinder body is movably connected with a second core cylinder body, one ends of the first core cylinder body and the second core cylinder body are respectively fixedly connected with a group of core frames, the center line of the first core cylinder body and the center line of the core frame are on the same vertical plane, and a connection structure for connecting the cores is arranged outside the core frame.

[0007] The connection structure includes a first installation frame, one end outside the core frame is movably connected with the first installation frame, the bottom end of the first installation frame is movably connected with a second installation frame, the top end inside the first installation frame is fixedly connected with a second connection cylinder, the bottom end inside the second installation frame is fixedly connected with a first connection cylinder, the top end of the first connection cylinder is fixedly connected with a positioning cylinder, both sides of the top end of the positioning cylinder are fixedly connected with connection elastic pieces, the top end of one side of the connection elastic piece is fixedly connected with a connection block, and connection slots are opened on both sides inside the second connection cylinder.

[0008] Preferably, the positioning cylinder is movably connected with the second connection cylinder, and the connection block is movably connected with the connection slot.

[0009] Preferably, the first connection cylinder is movably connected with the second core cylinder body, and the second connection cylinder is movably connected with the first core cylinder body.

[0010] Preferably, two groups of positioning pieces are respectively fixedly connected to both sides of the top end inside the first mounting frame and both sides of the bottom end inside the second mounting frame. Two groups of positioning pins are fixedly connected to both sides of the bottom of the first mounting frame. Two groups of positioning holes are formed in both sides of the top of the second mounting frame.

[0011] Preferably, the positioning piece is movably connected to the magnetic core frame, and the positioning pin is movably connected to the positioning hole.

[0012] Preferably, the positioning holes on both sides of the top of the second mounting frame are symmetrically arranged, and the positioning pins on both sides of the bottom of the first mounting frame are symmetrically arranged.

[0013] Preferably, first through grooves are formed at both ends inside the first connecting cylinder, and first heat dissipation fins are fixedly connected inside the first through grooves. Second through grooves are formed at both ends inside the second connecting cylinder, and second heat dissipation fins are fixedly connected inside the second through grooves.

[0014] Preferably, the first heat dissipation fin is movably connected to the second magnetic core cylinder, and the second heat dissipation fin is movably connected to the first magnetic core cylinder.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This high-frequency and high-impedance MnZn ferrite magnetic core not only realizes fast connection, improves the stability of magnetic connection, but also realizes accelerated heat dissipation;

[0016] (1) By providing the first mounting frame, the second mounting frame, the first connecting cylinder, the positioning cylinder, the connecting elastic piece, the second connecting cylinder, the connecting block and the connecting slot, when connecting the magnetic cores, the two magnetic core frames are fitted together face to face. After the first magnetic core cylinder and the second magnetic core cylinder are fitted, the first mounting frame and the second mounting frame are respectively sleeved outside the two magnetic core frames. At the same time, the first connecting cylinder and the second connecting cylinder pass through the inside of the first magnetic core cylinder and the second magnetic core cylinder. The positioning cylinder at the top end of the first connecting cylinder is inserted into the second connecting cylinder to prevent the two magnetic core frames from shifting. After the connecting elastic piece is inserted into the second connecting cylinder, the connecting block is pushed out and inserted into the inside of the connecting slot, so as to connect the first connecting cylinder and the second connecting cylinder through the connecting elastic piece to connect the two magnetic core frames, realizing fast connection of the magnetic cores;

[0017] (2) By providing a first mounting frame, a second mounting frame, positioning pieces, positioning pins and positioning holes, after the magnetic cores are connected, the positioning pieces inside the first mounting frame and the second mounting frame respectively fit against both ends of the magnetic core frame, which can effectively position the two groups of magnetic core frames, prevent the dislocation of the two groups of magnetic core frames from affecting the use of the magnetic cores. At the same time, the positioning pins at the bottom of the first mounting frame are inserted into the positioning holes opened at the top end of the second mounting frame, which can effectively position the first mounting frame, the second mounting frame and the positioning pieces inside them, so as to further improve the stability of the two groups of magnetic core frames, achieving the improvement of the stability of the magnetic core connection;

[0018] (3) By providing a first connecting cylinder, a first through groove, a first heat sink, a second connecting cylinder, a second through groove and a second heat sink, a first through groove is provided inside the first connecting cylinder of this structure, and a second through groove is provided inside the second connecting cylinder. The first through groove and the second through groove can respectively conduct the heat generated during the operation of the magnetic cores into the interiors of the first connecting cylinder and the second connecting cylinder. Moreover, the first heat sink and the second heat sink respectively fit against the first magnetic core cylinder body and the second magnetic core cylinder body and can respectively exchange heat with them to quickly absorb heat, and then the heat is taken away by the air flowing inside, achieving the effect of heat dissipation and temperature reduction, realizing the acceleration of the heat dissipation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front sectional structure schematic diagram of the present utility model;

[0020] Figure 2 is the top view structure schematic diagram of the second mounting frame of the present utility model;

[0021] Figure 3 is the top view structure schematic diagram of the second magnetic core cylinder body of the present utility model;

[0022] Figure 4 is of the present utility model Figure 1 is the enlarged structure schematic diagram at position A in the present utility model.

[0023] In the figure: 1, magnetic core frame; 2, first magnetic core cylinder body; 3, first mounting frame; 4, second mounting frame; 5, second magnetic core cylinder body; 6, positioning piece; 7, first connecting cylinder; 8, first through groove; 9, positioning pin; 10, first heat sink; 11, positioning cylinder; 12, connecting spring piece; 13, second connecting cylinder; 14, positioning hole; 15, connecting block; 16, connecting slot; 17, second through groove; 18, second heat sink. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-4 , a high-frequency and high-impedance MnZn ferrite magnetic core, including a first magnetic core cylinder body 2, the bottom end of the first magnetic core cylinder body 2 is movably connected with a second magnetic core cylinder body 5, one ends of the first magnetic core cylinder body 2 and the second magnetic core cylinder body 5 are respectively fixedly connected with a group of magnetic core frames 1, the central line of the first magnetic core cylinder body 2 and the central line of the magnetic core frame 1 are in the same vertical plane, and a connection structure for connecting the magnetic cores is arranged outside the magnetic core frame 1;

[0026] The connection structure includes a first mounting frame 3, one end outside the magnetic core frame 1 is movably connected with the first mounting frame 3, the bottom end of the first mounting frame 3 is movably connected with a second mounting frame 4, the top end inside the first mounting frame 3 is fixedly connected with a second connecting cylinder 13, the bottom end inside the second mounting frame 4 is fixedly connected with a first connecting cylinder 7, the top end of the first connecting cylinder 7 is fixedly connected with a positioning cylinder 11, both sides of the top end of the positioning cylinder 11 are fixedly connected with connecting elastic pieces 12, the top end of one side of the connecting elastic piece 12 is fixedly connected with a connecting block 15, and connecting card slots 16 are opened on both sides inside the second connecting cylinder 13;

[0027] The positioning cylinder 11 is movably connected with the second connecting cylinder 13, and the connecting block 15 is movably connected with the connecting card slot 16;

[0028] The first connecting cylinder 7 is movably connected with the second magnetic core cylinder body 5, and the second connecting cylinder 13 is movably connected with the first magnetic core cylinder body 2;

[0029] Specifically, as shown in Figure 1 , Figure 2 and Figure 4 , when connecting the magnetic cores, the two groups of magnetic core frames 1 are fitted together face to face, and after the first magnetic core cylinder body 2 and the second magnetic core cylinder body 5 are fitted, the first mounting frame 3 and the second mounting frame 4 are respectively sleeved outside the two groups of magnetic core frames 1. At the same time, the first connecting cylinder 7 and the second connecting cylinder 13 will pass through the inside of the first magnetic core cylinder body 2 and the second magnetic core cylinder body 5. The positioning cylinder 11 at the top end of the first connecting cylinder 7 is inserted into the second connecting cylinder 13 to prevent the two groups of magnetic core frames 1 from shifting. After the connecting elastic piece 12 is inserted into the second connecting cylinder 13, the connecting block 15 is pushed out and inserted into the inside of the connecting card slot 16, so as to connect the first connecting cylinder 7 and the second connecting cylinder 13 through the connecting elastic piece 12, and connect the two groups of magnetic core frames 1, realizing the rapid connection of the magnetic cores.

[0030] Embodiment 2: Two groups of positioning pieces 6 are respectively fixedly connected to both sides of the top end inside the first mounting frame 3 and both sides of the bottom end inside the second mounting frame 4. Two groups of positioning pins 9 are fixedly connected to both sides of the bottom of the first mounting frame 3. Two groups of positioning holes 14 are opened on both sides of the top of the second mounting frame 4;

[0031] The positioning piece 6 is movably connected to the magnetic core frame 1, and the positioning pin 9 is movably connected to the positioning hole 14;

[0032] The positioning holes 14 on both sides of the top of the second mounting frame 4 are symmetrically arranged, and the positioning pins 9 on both sides of the bottom of the first mounting frame 3 are symmetrically arranged;

[0033] Specifically, as Figure 1 and Figure 2 shown, after the magnetic cores are connected, the positioning pieces 6 inside the first mounting frame 3 and the second mounting frame 4 respectively fit on both ends of the magnetic core frame 1, which can effectively position the two groups of magnetic core frames 1 and prevent the dislocation of the two groups of magnetic core frames 1 from affecting the use of the magnetic cores. At the same time, the positioning pins 9 at the bottom of the first mounting frame 3 are inserted into the positioning holes 14 opened at the top end of the second mounting frame 4, which can effectively position the first mounting frame 3, the second mounting frame 4 and the positioning pieces 6 inside them, so as to further improve the stability of the two groups of magnetic core frames 1 and achieve the improvement of the connection stability of the magnetic cores.

[0034] Embodiment 3: First through grooves 8 are opened at both ends inside the first connecting cylinder 7, and first heat dissipation fins 10 are fixedly connected inside the first through grooves 8. Second through grooves 17 are opened at both ends inside the second connecting cylinder 13, and second heat dissipation fins 18 are fixedly connected inside the second through grooves 17;

[0035] The first heat dissipation fin 10 is movably connected to the second magnetic core cylinder 5, and the second heat dissipation fin 18 is movably connected to the first magnetic core cylinder 2;

[0036] Specifically, as Figure 1 and Figure 4 shown, a first through groove 8 is opened inside the first connecting cylinder 7 of this structure, and a second through groove 17 is opened inside the second connecting cylinder 13. The first through groove 8 and the second through groove 17 can respectively introduce the heat generated by the operation of the magnetic cores into the inside of the first connecting cylinder 7 and the second connecting cylinder 13, and the first heat dissipation fin 10 and the second heat dissipation fin 18 respectively fit with the first magnetic core cylinder 2 and the second magnetic core cylinder 5 to exchange heat with them to quickly absorb heat, and then the heat is taken away by the air flowing inside, achieving the effect of heat dissipation and temperature reduction and realizing the acceleration of the heat dissipation speed.

[0037] Working principle: When the utility model is in use, when connecting the magnetic cores, two groups of magnetic core frames 1 are fitted together face to face. After the first magnetic core cylinder 2 and the second magnetic core cylinder 5 are fitted, the first mounting frame 3 and the second mounting frame 4 are respectively sleeved outside the two groups of magnetic core frames 1. At the same time, the first connecting cylinder 7 and the second connecting cylinder 13 pass through the inside of the first magnetic core cylinder 2 and the second magnetic core cylinder 5. The positioning cylinder 11 at the top of the first connecting cylinder 7 is inserted into the second connecting cylinder 13 to prevent the two groups of magnetic core frames 1 from shifting. After the connecting elastic piece 12 is inserted into the second connecting cylinder 13, the connecting clamping block 15 is ejected and inserted into the inside of the connecting clamping groove 16, so that the first connecting cylinder 7 and the second connecting cylinder 13 are connected through the connecting elastic piece 12 to connect the two groups of magnetic core frames 1. After the magnetic cores are connected, the positioning pieces 6 inside the first mounting frame 3 and the second mounting frame 4 are respectively attached to both ends of the magnetic core frame 1, which can effectively position the two groups of magnetic core frames 1 and prevent the two groups of magnetic core frames 1 from being misaligned and affecting the use of the magnetic cores. At the same time, the positioning pin 9 at the bottom of the first mounting frame 3 is inserted into the positioning hole 14 opened at the top of the second mounting frame 4, which can effectively position the first mounting frame 3, the second mounting frame 4 and the positioning pieces 6 inside them to further improve the stability of the two groups of magnetic core frames 1. A first through groove 8 is provided inside the first connecting cylinder 7 of this structure, and a second through groove 17 is provided inside the second connecting cylinder 13. The first through groove 8 and the second through groove 17 can respectively introduce the heat generated by the operation of the magnetic cores into the inside of the first connecting cylinder 7 and the second connecting cylinder 13. And the first heat dissipation fin 10 and the second heat dissipation fin 18 are respectively attached to the first magnetic core cylinder 2 and the second magnetic core cylinder 5 and can exchange heat with them respectively to quickly absorb heat, and then the heat is taken away by the air flowing inside, playing a role in heat dissipation and temperature reduction.

Claims

1. A high-frequency high-impedance MnZn ferrite core, comprising a first core cylinder (2), characterized in that: The bottom end of the first magnetic core cylinder (2) is movably connected to the second magnetic core cylinder (5); one end of the first magnetic core cylinder (2) and the second magnetic core cylinder (5) are respectively fixedly connected to a group of magnetic core frames (1); the center line of the first magnetic core cylinder (2) and the center line of the magnetic core frame (1) are on the same vertical plane; and a connection structure for connecting the magnetic core is arranged outside the magnetic core frame (1); The connection structure comprises a first installation frame (3), one end of the outside of the magnetic core frame (1) is movably connected to the first installation frame (3), the bottom end of the first installation frame (3) is movably connected to the second installation frame (4), the top end of the first installation frame (3) is fixedly connected to the second connection tube (13), the bottom end of the second installation frame (4) is fixedly connected to the first connection tube (7), the top end of the first connection tube (7) is fixedly connected to the positioning tube (11), the two sides of the top end of the positioning tube (11) are fixedly connected to connecting springs (12), the top end of one side of the connecting springs (12) is fixedly connected to a connecting block (15), and the two sides of the inside of the second connection tube (13) are provided with connecting slots (16).

2. A high frequency and high impedance MnZn ferrite core according to claim 1, characterized in that: The positioning cylinder (11) is movably connected to the second connecting cylinder (13), and the connecting clamp block (15) is movably connected to the connecting clamp groove (16).

3. The high-frequency high-impedance MnZn ferrite core according to claim 1, characterized in that: The first connecting tube (7) is movably connected to the second magnetic core tube body (5), and the second connecting tube (13) is movably connected to the first magnetic core tube body (2).

4. The high-frequency high-impedance MnZn ferrite core according to claim 1, characterized in that: Two groups of positioning plates (6) are fixedly connected to both sides of the top of the first installation frame (3) and both sides of the bottom of the second installation frame (4), two groups of positioning pins (9) are fixedly connected to both sides of the bottom of the first installation frame (3), and two groups of positioning holes (14) are provided on both sides of the top of the second installation frame (4).

5. The high-frequency high-impedance MnZn ferrite core according to claim 4, characterized in that: The positioning piece (6) is movably connected to the magnetic core frame (1), and the positioning pin (9) is movably connected to the positioning hole (14).

6. The high-frequency high-impedance MnZn ferrite core according to claim 4, characterized in that: The positioning holes (14) on both sides of the top of the second installation frame (4) are symmetrically arranged, and the positioning pins (9) on both sides of the bottom of the first installation frame (3) are symmetrically arranged.

7. The high-frequency high-impedance MnZn ferrite core according to claim 1, characterized in that: The first connecting tube (7) has first through grooves (8) at both ends thereof, and a first heat sink (10) is fixedly connected to the interior of the first through groove (8); the second connecting tube (13) has second through grooves (17) at both ends thereof, and a second heat sink (18) is fixedly connected to the interior of the second through groove (17).

8. The high-frequency high-impedance MnZn ferrite core according to claim 7, characterized in that: The first heat sink (10) is movably connected to the second magnetic core cylinder (5), and the second heat sink (18) is movably connected to the first magnetic core cylinder (2).