Manganese zinc ferrite magnetic core structure

Abstract

The utility model discloses a manganese zinc ferrite magnetic core structure which comprises two E-shaped magnetic cores which are symmetrically arranged and a connecting framework used for connecting the two E-shaped magnetic cores, the connecting framework comprises a cylinder, two ends of the cylinder are respectively connected with a connecting seat, each E-shaped magnetic core comprises two U-shaped magnetic cores which are symmetrically arranged, and the U-shaped magnetic cores are bonded with the connecting seats. The E-shaped magnetic core comprises the two U-shaped magnetic cores which are symmetrically arranged, and the U-shaped magnetic cores are directly connected with the connecting seat of the connecting framework in a bonding mode, so that impact can be buffered in a reliability test, the requirement for high reliability is met, assembly is convenient, and automatic assembly is met; the four positioning pins are arranged in the positioning groove, the positioning holes corresponding to the positioning pins are formed in the bottom plate, and positioning and limiting of the U-shaped magnetic core and the connecting framework are achieved through matching of the positioning pins and the positioning holes.

Description

Technical Field

[0001] The utility model belongs to the technical field of soft ferrite cores, and in particular relates to a manganese-zinc ferrite core structure. Background Art

[0002] Manganese-zinc soft ferrites, with their physical and chemical properties such as high magnetic permeability, low coercivity, and low power loss, are widely used in the automotive industry, primarily in the manufacture of high-frequency transformers, sensors, and PFC inductors. As environmental requirements in these applications increase, the demand for ferrite reliability is also increasing.

[0003] Currently, there are two ways to make transformers:

[0004] 1. Two E-shaped cores are assembled through a bobbin. Although this method has high production efficiency, the product is subject to large impact during reliability testing and cannot meet high reliability requirements;

[0005] 2. The E-shaped core is formed by gluing two parts together, and then assembled through a skeleton. This method can buffer the impact during reliability testing and meet high reliability requirements. However, the gluing of the E-shaped core has problems such as complex operation, poor bonding effect, and difficulty in automated assembly. Utility Model Content

[0006] The purpose of the present invention is to provide a manganese-zinc ferrite core structure to solve the problems mentioned in the background art. The present invention provides a manganese-zinc ferrite core structure that meets high reliability requirements and is easy to automate.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a manganese-zinc ferrite core structure, comprising two symmetrically arranged E-shaped magnetic cores and a connecting skeleton for connecting the two E-shaped magnetic cores, wherein the connecting skeleton comprises a cylinder, and the two ends of the cylinder are respectively connected to a connecting seat, and the E-shaped magnetic core comprises two symmetrically arranged U-shaped magnetic cores, and the U-shaped magnetic core is bonded to the connecting seat.

[0008] Furthermore, the U-shaped magnetic core includes a bottom plate, a side plate is provided on one side above the bottom plate, and a center column is provided on the other side above the bottom plate.

[0009] In order to accommodate the center column and facilitate assembly, the center column is further formed into a semicircular structure. A cylindrical cavity is provided inside the cylinder.

[0010] In order to accommodate the bottom plate and limit the bottom plate at the same time, a positioning groove is further provided on the connecting seat, and the depth of the positioning groove is equal to the thickness of the bottom plate.

[0011] In order to achieve the positioning and limiting of the U-shaped magnetic core and the connecting frame, a plurality of positioning pins are further provided inside the positioning groove, and positioning holes corresponding to the positioning pins are provided on the bottom plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The E-shaped magnetic core of the utility model includes two symmetrically arranged U-shaped magnetic cores, and the U-shaped magnetic cores are directly bonded to the connection seat of the connection frame, so that it can not only buffer the impact during the reliability test and meet the high reliability requirements, but also facilitate assembly and meet the requirements of automated assembly;

[0014] 2. The utility model has a positioning groove on the connecting seat to accommodate the bottom plate and also to limit the bottom plate;

[0015] 3. The interior of the positioning groove of the utility model is provided with four positioning pins, and the bottom plate is provided with positioning holes corresponding to the positioning pins. The positioning and limiting of the U-shaped magnetic core and the connecting frame are achieved through the cooperation of the positioning pins and the positioning holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 2 It is a structural diagram of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the E-type magnetic core of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the U-shaped magnetic core of the utility model;

[0020] Figure 5 It is a structural diagram of the skeleton of the utility model;

[0021] In the figure: 1. E-shaped magnetic core; 2. connecting frame; 21. cylinder; 22. connecting seat; 23. positioning groove; 24. positioning pin; 3. U-shaped magnetic core; 31. bottom plate; 32. side plate; 33. center column; 34. positioning hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-5 The utility model provides the following technical solutions: a manganese-zinc ferrite core structure, comprising two symmetrically arranged E-shaped magnetic cores 1 and a connecting skeleton 2 for connecting the two E-shaped magnetic cores 1, wherein the connecting skeleton 2 comprises a cylinder 21, and both ends of the cylinder 21 are respectively connected to a connecting seat 22, the E-shaped magnetic core 1 comprises two symmetrically arranged U-shaped magnetic cores 3, the U-shaped magnetic core 3 comprises a bottom plate 31, a side plate 32 is provided on one side above the bottom plate 31, and a middle column 33 is provided on the other side above the bottom plate 31, and the U-shaped magnetic core 3 is bonded to the connecting seat 22.

[0025] By adopting the above technical solution, the E-shaped magnetic core 1 of the utility model includes two symmetrically arranged U-shaped magnetic cores 3, and the U-shaped magnetic core 3 is directly bonded to the connecting seat 22 of the connecting frame 2, so that it can not only buffer the impact during reliability testing and meet high reliability requirements, but also facilitate assembly and meet automated assembly requirements.

[0026] Specifically, the center column 33 is a semicircular structure, and a cylindrical cavity is provided inside the cylinder 21 , and the diameter of the cavity is slightly larger than the diameter of the center column 33 .

[0027] By adopting the above technical solution, the center column 33 can be accommodated and assembly can be facilitated.

[0028] Example 2

[0029] The present embodiment differs from the first embodiment in that: specifically, a positioning groove 23 is provided on the connecting seat 22 , and the depth of the positioning groove 23 is equal to the thickness of the bottom plate 31 .

[0030] By adopting the above technical solution, the bottom plate 31 can be accommodated and the bottom plate 31 can be limited at the same time.

[0031] Example 3

[0032] The present embodiment differs from the first embodiment in that: specifically, four positioning pins 24 are provided inside the positioning groove 23 , and positioning holes 34 corresponding to the positioning pins 24 are provided on the bottom plate 31 .

[0033] By adopting the above technical solution, the positioning and limiting of the U-shaped magnetic core 3 and the connecting frame 2 are achieved through the cooperation between the positioning pins 24 and the positioning holes 34 .

[0034] To sum up, the E-shaped magnetic core 1 of the utility model includes two symmetrically arranged U-shaped magnetic cores 3, and the U-shaped magnetic core 3 is directly bonded to the connecting seat 22 of the connecting skeleton 2, so that it can not only buffer the impact during the reliability test and meet the high reliability requirements, but also facilitate assembly and meet the requirements of automated assembly; the utility model is provided with a positioning groove 23 on the connecting seat 22 for accommodating the base plate 31, and can also limit the base plate 31; the positioning groove 23 of the utility model is provided with four positioning pins 24 inside, and the base plate 31 is provided with a positioning hole 34 corresponding to the positioning pin 24, and the positioning pin 24 cooperates with the positioning hole 34 to realize the positioning and limiting of the U-shaped magnetic core 3 and the connecting skeleton 2.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manganese-zinc ferrite core structure, characterized in that: It includes two symmetrically arranged E-shaped magnetic cores and a connecting frame for connecting the two E-shaped magnetic cores, wherein the connecting frame includes a cylinder, both ends of the cylinder are respectively connected to a connecting seat, and the E-shaped magnetic core includes two symmetrically arranged U-shaped magnetic cores, which are bonded to the connecting seat.

2. The manganese-zinc ferrite core structure according to claim 1, wherein: The U-shaped magnetic core comprises a bottom plate, a side plate is provided on one side above the bottom plate, and a center column is provided on the other side above the bottom plate.

3. The manganese-zinc ferrite core structure according to claim 2, wherein: The center column is a semicircular structure.

4. The manganese-zinc ferrite core structure according to claim 3, wherein: A cylindrical cavity is provided inside the cylinder.

5. The manganese-zinc ferrite core structure according to claim 2, wherein: The connecting seat is provided with a positioning groove, and the depth of the positioning groove is equal to the thickness of the bottom plate.

6. The manganese-zinc ferrite core structure according to claim 5, characterized in that: A plurality of positioning pins are arranged inside the positioning groove.

7. The manganese-zinc ferrite core structure according to claim 6, characterized in that: The bottom plate is provided with positioning holes corresponding to the positioning pins.

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