Support structure for sintering of ferrite

Abstract

The application provides a support structure for sintering ferrite, which comprises a base plate, a first support part arranged on one side of the base plate, a second support part arranged on the other side of the base plate, and a support station arranged between the first support part and the second support part. When a ring-shaped ferrite is arranged in the support station, one end of the ring-shaped ferrite abuts against the first support part, the other end of the ring-shaped ferrite abuts against the second support part, and the first support part and the second support part are integrally formed with the base plate. The first support part is made of alumina or zirconia. The support station formed by the first support part and the second support part provides positioning constraint for the ring-shaped ferrite, effectively avoids the situation that the ferrite slides and collides or stands and falls, and further, the application does not need to be fixed by glue, avoids the defects that the glue remains and pollutes the arc surface ferrite, reduces the insulation and increases the loss. The application has the advantages of simple structure, low implementation cost and easy popularization and implementation.

Description

Technical Field

[0001] This application belongs to the field of ferrite production technology, specifically relating to a support structure for ferrite sintering. Background Technology

[0002] In existing technologies, ferrite is a core material for electronic devices, and its electromagnetic properties determine the energy efficiency and stability of the equipment. To ensure its performance after high-temperature sintering, the industry commonly uses alumina plates, zirconia plates, or powder-formed plates of the same material as furnace pads. These materials are chemically inert, not only do they not react with ferrite, but they also reduce sintering stress and ensure that indicators such as magnetic permeability meet standards. Currently, the mainstream furnace pad material is flat, which is easy to operate, cost-effective, and is the core of standardized production.

[0003] However, with the miniaturization of electronic devices, the demand for toroidal and U-shaped curved ferrites has surged, highlighting the shortcomings of flat sintering pads. When curved ferrites are sintered upright, the lack of positioning constraints on the flat pads leads to several problems: First, uneven airflow or thermal expansion within the furnace at high temperatures can cause the curved ferrites to slide and collide. Since ferrites have low hardness, collisions can easily cause cracks, resulting in a decrease in magnetic permeability. Second, the curved structure is unstable and easily tips over when placed upright. Third, some companies use glue for temporary fixation, and high-temperature residue can contaminate the curved ferrites, reducing insulation performance and increasing losses, failing to meet usage requirements. Therefore, improvements are urgently needed. Utility Model Content

[0004] This application addresses the existing technical problems: during high-temperature sintering of curved ferrite, the flat sintering pad lacks positioning constraints, easily causing the curved ferrite to slide, collide, or tip over when placed upright; temporary fixing with glue leaves residues that contaminate the curved ferrite, reducing insulation performance and increasing ferrite loss. During ferrite sintering, existing flat sintering pads cannot support and position the curved ferrite. Therefore, this application proposes a support structure for ferrite sintering.

[0005] This application adopts the following solution: a support structure for ferrite sintering, including a substrate, a first support portion disposed on one side of the substrate, a second support portion disposed on the other side of the substrate, and a support station disposed between the first support portion and the second support portion. When an annular ferrite is disposed in the support station, one side of the annular ferrite abuts against the first support portion, and the other side abuts against the second support portion. The first support portion, the second support portion, and the substrate are integrally formed. The material of the first support portion is alumina or zirconium oxide.

[0006] In some feasible embodiments, the first support portion and the second support portion are symmetrically arranged with respect to the center line of the substrate, and the first support portion is inclined with respect to the substrate.

[0007] In some feasible embodiments, the first support portion is tilted away from the substrate, and the tilt angle of the first support portion relative to the substrate is defined as A, wherein A satisfies the following relationship: 30°≤A≤60°.

[0008] In some feasible embodiments, the first support portion and the second support portion are symmetrically arranged with respect to the center line of the substrate, and the first support portion includes a plurality of first support blocks spaced apart along the width direction of the substrate.

[0009] In some feasible embodiments, the number of the first support blocks is defined as N, where N satisfies the following relationship: 2≤N≤5.

[0010] In some feasible embodiments, the bottom surface of the support station is an arc surface, and the bottom of the support station is provided with a support groove. When the annular ferrite is matched and placed in the support station, the bottom of the annular ferrite extends into the support groove.

[0011] In some feasible embodiments, the bottom surface of the support groove is a plane or an arc surface, the depth of the support station is defined as D, and the depth of the support groove is defined as d. The relationship between D and d is: 1.6≤D / d≤2.5.

[0012] In some feasible embodiments, the width of the substrate is defined as K, and the thickness of the annular ferrite is defined as k, wherein K and k satisfy the following relationship: 1≤K / k≤1.5.

[0013] In some feasible embodiments, a positioning groove is also provided on the bottom surface of the substrate. Multiple positioning grooves are provided at intervals along the length direction of the substrate, and the multiple positioning grooves are symmetrically arranged relative to the center line of the substrate.

[0014] Compared with the prior art, this application has the following beneficial effects:

[0015] This application provides a support structure for ferrite sintering, comprising a substrate, a first support portion disposed on one side of the substrate, a second support portion disposed on the other side of the substrate, and a support station disposed between the first and second support portions. When a ring-shaped ferrite is disposed within the support station, one end of the ring-shaped ferrite abuts against the first support portion, and the other end abuts against the second support portion. The first and second support portions are integrally formed with the substrate, and the first support portion is made of alumina or zirconium oxide. This application provides positioning constraints for the ring-shaped ferrite through the support station formed by the first and second support portions, effectively preventing the ferrite from sliding, colliding, or tipping over when placed upright. Furthermore, this application eliminates the need for adhesive fixation, avoiding the drawbacks of adhesive residue contaminating the curved surface of the ferrite, reducing insulation, and increasing losses. It has the advantages of simple structure, low implementation cost, and ease of promotion and implementation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a support structure for ferrite sintering according to this application;

[0017] Figure 2 This is a schematic diagram of another state of the support structure for ferrite sintering according to this application;

[0018] Figure 3 This is a schematic diagram of another state of the support structure for ferrite sintering according to this application;

[0019] Figure 4 This is a schematic diagram of another state of the support structure for ferrite sintering according to this application;

[0020] Figure 5 This is a diagram showing the usage state of a support structure for ferrite sintering according to this application. Detailed Implementation

[0021] Combination Figures 1 to 5 The following description further illustrates the technical solution proposed in this application. This application adopts the following technical solution: a support structure for ferrite sintering, comprising a substrate 1, a first support portion 2 disposed on one side of the substrate 1, a second support portion 3 disposed on the other side of the substrate 1, and a support station 4 disposed between the first support portion 2 and the second support portion 3. When an annular ferrite is disposed within the support station 4, one side of the annular ferrite abuts against the first support portion 2, and the other side abuts against the second support portion 3. The first support portion 2, the second support portion 3, and the substrate 1 are integrally formed. The material of the first support portion 2 is alumina or zirconium oxide.

[0022] This application provides a support structure for ferrite sintering, comprising a substrate, a first support portion disposed on one side of the substrate, a second support portion disposed on the other side of the substrate, and a support station disposed between the first and second support portions. When a ring-shaped ferrite is disposed within the support station, one end of the ring-shaped ferrite abuts against the first support portion, and the other end abuts against the second support portion. The first and second support portions are integrally formed with the substrate, and the first support portion is made of alumina or zirconium oxide. This application provides positioning constraints for the ring-shaped ferrite through the support station formed by the first and second support portions, effectively preventing the ferrite from sliding, colliding, or tipping over when placed upright. Furthermore, this application eliminates the need for adhesive fixation, avoiding the drawbacks of adhesive residue contaminating the curved surface of the ferrite, reducing insulation, and increasing losses. It has the advantages of simple structure, low implementation cost, and ease of promotion.

[0023] In actual implementation, the ferrite is supported and positioned by the physical contact between the first and second support parts, without the need for any adhesive. This avoids the residue of impurities caused by the decomposition of glue at high temperatures, thus ensuring the insulation and magnetic properties of the ferrite.

[0024] Furthermore, the first support part 2 is made of alumina or zirconium oxide. Both types of materials have the characteristics of high temperature resistance, low expansion coefficient and strong chemical stability, ensuring that the support part does not fail or contaminate the ferrite under long-term high temperature sintering environment.

[0025] In some feasible embodiments, the first support portion 2 and the second support portion 3 are symmetrically arranged with respect to the center line of the substrate 1, and the first support portion 2 is inclined with respect to the substrate 1.

[0026] In some feasible embodiments, the first support portion 2 is tilted away from the substrate 1, and the tilt angle of the first support portion 2 relative to the substrate 1 is defined as A, wherein A satisfies the following relationship: 30°≤A≤60°.

[0027] For example, the value of A is 30°, 35°, 45°, 50°, or 60°.

[0028] In actual implementation, such as Figure 1 As shown, the first and second support parts have identical structures and are symmetrically arranged relative to the center line of the substrate. When the annular ferrite is placed in the support station, the inclined first support parts on both sides apply uniform lateral constraint forces from both radial sides of the ferrite. This symmetrical force-bearing structure avoids ferrite displacement caused by unilateral support, ensuring that the ferrite is always in the center position of the support station and preventing the ferrite from tipping over.

[0029] In actual implementation, the outer wall of the annular ferrite is an arc-shaped structure. The symmetrically inclined first support part can form a "two-point symmetrical contact" with the curved surface of the ferrite through its inner wall. The contact point fits the shape of the ferrite, which can effectively support the ferrite and prevent it from tipping over.

[0030] In some feasible embodiments, the first support portion 2 and the second support portion 3 are symmetrically arranged with respect to the center line of the substrate 1, and the first support portion 2 includes a plurality of first support blocks 20 spaced apart along the width direction of the substrate 1.

[0031] In some feasible embodiments, the number of the first support blocks 20 is defined as N, where N satisfies the following relationship: 2≤N≤5.

[0032] For example, N can take the values ​​2, 3, 4, or 5.

[0033] In actual implementation, such as Figure 2As shown, the first support consists of multiple first support blocks, which are symmetrically distributed relative to the center line of the substrate. When the annular ferrite is placed in the support station, the symmetrical first support blocks will form multiple support points from both radial sides of the ferrite. This multi-point constraint structure can more accurately limit the radial displacement of the ferrite, and even if the ferrite has a tendency to shift due to minor vibrations during the sintering process, it avoids the collapse caused by the accumulation of displacement.

[0034] In some feasible embodiments, the bottom surface of the support station 4 is an arc surface, and the bottom of the support station 4 is provided with a support groove 5. When the annular ferrite is matched and placed in the support station 4, the bottom of the annular ferrite extends into the support groove 5.

[0035] In some feasible embodiments, the bottom surface of the support groove 5 is a plane or an arc surface, the depth of the support station 4 is defined as D, and the depth of the support groove 5 is defined as d. The relationship between D and d is: 1.6≤D / d≤2.5.

[0036] For example, the values ​​of D / d are 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, and 2.5.

[0037] In actual implementation, such as Figure 4 As shown, the bottom surface of support station 4 is designed as an arc surface, and its curvature perfectly matches the curvature of the outer wall of the annular ferrite. When the annular ferrite is placed in the support station, the bottom of the ferrite fits against the arc surface, increasing the contact area between the ferrite and the support station, thereby improving the support strength of the first support and the second support.

[0038] In actual implementation, the support groove 5 at the bottom of the support station provides bottom embedding constraint for the annular ferrite. The bottom of the ferrite extends into the support groove, and the groove wall further restricts the displacement of the ferrite from both radial sides, so as to avoid the ferrite tipping over due to vibration during sintering.

[0039] In some feasible embodiments, the width of the substrate 1 is defined as K, and the thickness of the annular ferrite is defined as k, wherein K and k satisfy the following relationship: 1≤K / k≤1.5.

[0040] For example, the values ​​of K / k are 1, 1.1, 1.2, 1.3, 1.4, and 1.5.

[0041] In some feasible embodiments, a positioning groove 6 is also provided on the bottom surface of the substrate 1. Multiple positioning grooves 6 are provided at intervals along the length direction of the substrate 1, and the multiple positioning grooves 6 are symmetrically arranged with respect to the center line of the substrate 1.

[0042] In actual implementation, such as Figure 1As shown, a positioning track is provided inside the sintering furnace. The cross-sectional shape of the positioning track matches the cross-sectional shape of the positioning groove. The positioning track can be inserted into the positioning groove to position the substrate inside the sintering furnace.

[0043] This application provides a support structure for ferrite sintering, comprising a substrate, a first support portion disposed on one side of the substrate, a second support portion disposed on the other side of the substrate, and a support station disposed between the first and second support portions. When a ring-shaped ferrite is disposed within the support station, one end of the ring-shaped ferrite abuts against the first support portion, and the other end abuts against the second support portion. The first and second support portions are integrally formed with the substrate, and the first support portion is made of alumina or zirconium oxide. This application provides positioning constraints for the ring-shaped ferrite through the support station formed by the first and second support portions, effectively preventing the ferrite from sliding, colliding, or tipping over when placed upright. Furthermore, this application eliminates the need for adhesive fixation, avoiding the drawbacks of adhesive residue contaminating the curved surface of the ferrite, reducing insulation, and increasing losses. It has the advantages of simple structure, low implementation cost, and ease of promotion.

[0044] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A support structure for ferrite sintering, characterized in that, The system includes a substrate (1), a first support portion (2) disposed on one side of the substrate (1), a second support portion (3) disposed on the other side of the substrate (1), and a support station (4) disposed between the first support portion (2) and the second support portion (3). When the annular ferrite is disposed in the support station (4), one side of the annular ferrite abuts against the first support portion (2), and the other side abuts against the second support portion (3). The first support portion (2), the second support portion (3), and the substrate (1) are integrally formed. The material of the first support portion (2) is alumina or zirconium oxide.

2. The support structure for ferrite sintering according to claim 1, characterized in that, The first support portion (2) and the second support portion (3) are symmetrically arranged with respect to the center line of the substrate (1), and the first support portion (2) is inclined with respect to the substrate (1).

3. The support structure for ferrite sintering according to claim 2, characterized in that, The first support portion (2) is inclined away from the substrate (1), and the inclination angle of the first support portion (2) relative to the substrate (1) is defined as A, and A satisfies the following relationship: 30°≤A≤60°.

4. The support structure for ferrite sintering according to claim 1, characterized in that, The first support portion (2) and the second support portion (3) are symmetrically arranged relative to the center line of the substrate (1). The first support portion (2) includes a plurality of first support blocks (20) spaced apart along the width direction of the substrate (1).

5. The support structure for ferrite sintering according to claim 4, characterized in that, The number of the first support block (20) is defined as N, and N satisfies the following relationship: 2≤N≤5.

6. The support structure for ferrite sintering according to claim 1, characterized in that, The bottom surface of the support station (4) is an arc surface, and the bottom of the support station (4) is provided with a support groove (5). When the annular ferrite is matched and placed in the support station (4), the bottom of the annular ferrite extends into the support groove (5).

7. The support structure for ferrite sintering according to claim 6, characterized in that, The bottom surface of the support groove (5) is a plane or an arc surface. The depth of the support station (4) is defined as D, and the depth of the support groove (5) is defined as d. The relationship between D and d is as follows: 1.6≤D / d≤2.

5.

8. The support structure for ferrite sintering according to claim 1, characterized in that, The width of the substrate (1) is defined as K, and the thickness of the annular ferrite is defined as k. K and k satisfy the following relationship: 1≤K / k≤1.

5.

9. A support structure for ferrite sintering according to claim 1, characterized in that, It also includes a positioning groove (6) on the bottom surface of the substrate (1). The positioning groove (6) is provided at multiple intervals along the length direction of the substrate (1), and the multiple positioning grooves (6) are symmetrically arranged relative to the center line of the substrate (1).

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