Efficient longitudinal magnetic field heat treatment rack for nanocrystalline magnetic cores

Abstract

The utility model discloses a nanocrystalline magnetic core efficient longitudinal magnetic field heat treatment rack, which relates to the technical field of nanocrystalline magnetic core heat treatment and comprises a cover plate. The bottom plate comprises an upper flange plate and a lower flange plate; one end of the hoisting rod piece is fixed in the center of the lower flange plate; the hollow material rods are uniformly distributed between the cover plate and the sector plate of the upper flange plate; the four groups of sector plates of the cover plate are fixedly connected by two groups of connecting sheets, and the four groups of sector plates of the upper flange plate are fixedly connected by the other two groups of connecting sheets; and the heat dissipation pipes are fixed on the lower flange plate. According to the utility model, the original connection of each hollow material rod through a cable is changed into series connection of four groups of hollow material rods through connecting sheets, the connection is stable and reliable, two ends of the radiating pipe extend out of the bottom plate and can be connected with an external cold air circulating device, and the heat generated by crystallization of a furnace center product is rapidly taken away.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanocrystalline magnetic core heat treatment technical field, concretely is a kind of nanocrystalline magnetic core efficient longitudinal magnetic field heat treatment rack. BACKGROUND

[0002] As a new energy-saving material, nanocrystalline alloy has high saturation magnetic induction intensity, high magnetic permeability, low coercivity, low core loss and large resistivity, etc. Compared with traditional soft magnetic materials, it has excellent comprehensive performance. After longitudinal magnetic field treatment, nanocrystalline can obtain high remanence, which is the best material in the current market in terms of comprehensive performance. It is often used as a magnetic material for preparing high-power switching power supply, inverter power supply, magnetic flux gate DC sensor, filter and other power electronic components.

[0003] Nanocrystalline alloy is prepared by heat treatment of amorphous alloy. Heat treatment can further eliminate internal stress generated during the formation of amorphous alloy from liquid alloy during rapid cooling, thereby further improving its soft magnetic properties. However, amorphous alloy material is prone to embrittlement, core deformation and peeling after annealing in a conventional heat treatment furnace, making it difficult to perform secondary processing and secondary magnetic field heat treatment.

[0004] The longitudinal magnetic field heat treatment furnace rack generally places multiple columns on the tray, then the magnetic core is inserted into the column one by one, and finally the columns are connected in series by wires. The wire connection is unstable during high-temperature heat treatment, and it is easy to fall off or discharge, which makes it difficult to disassemble later, greatly affecting production efficiency. At the same time, a large amount of heat is generated rapidly in a short time during the nanocrystallization of the magnetic core from the amorphous state. The heat cycle performance of the traditional heat treatment furnace rack is not good, and the large amount of heat generated by the magnetic core during nanocrystallization in a short time is difficult to quickly and uniformly dissipate, resulting in a sharp rise in the temperature of the magnetic core. Ultimately, the performance, yield and quality stability of the magnetic core product are greatly reduced due to overheating and uneven heating and magnetization. UTILITY MODEL CONTENTS

[0005] In view of the shortcomings of the prior art, the utility model aims to provide a nanocrystalline magnetic core efficient longitudinal magnetic field heat treatment rack, which solves the problems of unstable connection and poor heat cycle performance of the traditional heat treatment furnace rack.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a nanocrystalline magnetic core efficient longitudinal magnetic field heat treatment rack, comprising: a cover plate, a plurality of positioning holes and ventilation holes are provided on the cover plate, the cover plate is composed of four groups of identical fan-shaped plates, and the positioning holes and ventilation holes are evenly distributed on each group of fan-shaped plates of the cover plate;

[0007] The bottom plate comprises an upper flange plate and a lower flange plate, the upper flange plate is located above the lower flange plate, a plurality of positioning holes two and ventilation holes two corresponding to the positioning holes one of the cover plate are uniformly distributed on the upper flange plate, the upper flange plate is composed of four groups of sector plates which are the same in shape, and the positioning holes two and the ventilation holes two are uniformly distributed on each group of sector plates of the upper flange plate, the upper flange plate is the same in shape as the cover plate, and legs for fixedly connecting the upper flange plate are arranged on the lower flange plate.

[0008] The hoisting rod is fixed at the center of the lower flange plate and extends upwards above the cover plate at the other end.

[0009] A plurality of hollow material rods are uniformly distributed between the cover plate and the sector plates of the upper flange plate, and the two ends of the hollow material rods are detachably connected with the positioning holes one and the positioning holes two respectively.

[0010] The sector plates of the cover plate, the sector plates of the upper flange plate and the hollow material rods connected between the sector plates of the upper and lower positions are divided into four parts, and the four parts are connected in series by four groups of connecting plates, the four sector plates of the cover plate are fixedly connected by two groups of connecting plates, and the four sector plates of the upper flange plate are fixedly connected by the other two groups of connecting plates.

[0011] A plurality of heat dissipation pipes are fixed on the lower flange plate, the two ends of the heat dissipation pipes extend out of the lower flange plate, the heat dissipation pipes are located at the centers of the four hollow material rods, and the heat dissipation pipes are uniformly distributed around the hoisting rod.

[0012] Preferably, the bottom plate is installed by lifting the upper flange plate through the legs, a space for accommodating the lower end of the hollow material rod is formed between the upper flange plate and the lower flange plate, and the lower end of the hollow material rod is inserted into the positioning hole two and arranged in parallel with the hoisting rod.

[0013] Preferably, the upper end of the hollow material rod is inserted into the positioning hole one and locked by the upper nut.

[0014] Preferably, the lower nut is connected to the upper end of the hollow material rod and abuts against the upper flange plate.

[0015] Preferably, the heat dissipation pipe is a U-shaped pipe.

[0016] The utility model has the following beneficial effects:

[0017] 1. 15 hollow material rods are taken as a group, the whole rack is divided into four parts, the original cable connection of each hollow material rod is changed into the series connection of the four groups by the connecting plates, the hollow material rods in the same group are connected in parallel between the bottom plate and the cover plate, the connection is stable and reliable, 90% of the furnace wiring time is saved, and high-efficiency longitudinal magnetic heat treatment is realized.

[0018] 2. The two ends of the heat dissipation pipe extend out of the base plate and can be connected to the external cold air circulation device to quickly remove the heat generated by the crystallization of the products in the center of the furnace, so as to keep the temperature of the furnace center and the furnace edge consistent. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a right view of the present invention;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure between the cover plate and the base plate of this utility model.

[0023] In the diagram: 1. Cover plate; 11. Positioning hole one; 12. Ventilation hole one; 2. Base plate; 21. Upper flange plate; 211. Positioning hole two; 212. Ventilation hole two; 22. Lower flange plate; 221. Ventilation hole three; 222. Support leg; 3. Lifting rod; 4. Hollow rod; 41. Upper nut; 42. Lower nut; 5. Connecting piece; 6. Heat dissipation pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-4 As shown, this utility model provides a technical solution: a high-efficiency longitudinal magnetic field heat treatment rack for nanocrystalline magnetic cores, including: a cover plate 1, the cover plate 1 is provided with a plurality of positioning holes 11 and ventilation holes 12, the cover plate 1 is composed of four sets of fan-shaped plates of the same shape, and the positioning holes 11 and ventilation holes 12 are evenly distributed on each set of fan-shaped plates of the cover plate 1.

[0026] The base plate 2 includes an upper flange plate 21 and a lower flange plate 22. The upper flange plate 21 is located above the lower flange plate 22. The upper flange plate 21 has a number of positioning holes 211 and ventilation holes 212 that correspond to the positioning holes 1 on the cover plate 1. The upper flange plate 21 is composed of four sets of fan-shaped plates with the same shape. The positioning holes 211 and ventilation holes 212 are evenly distributed on each set of fan-shaped plates of the upper flange plate 21. The upper flange plate 21 has the same shape as the cover plate 1. The lower flange plate 22 is provided with ventilation holes 221 and support legs 222 that are fixedly connected to the upper flange plate 21.

[0027] The lifting rod 3 is fixed at the center of the lower flange plate 22, and the other end of the lifting rod 3 extends upward above the cover plate 1, and the lifting rod 3 is vertically distributed with the lower flange plate 22;

[0028] A plurality of hollow rods 4 are evenly distributed between the fan-shaped plates of the cover plate 1 and the upper flange plate 21, and the two ends of the hollow rod 4 are detachably installed with the positioning hole one 11 and the positioning hole two 211 respectively;

[0029] Four groups of connecting plates 5, the fan-shaped plates of the cover plate 1, the fan-shaped plates of the upper flange plate 21 and the hollow rods 4 connected between the corresponding fan-shaped plates of the upper and lower positions are divided into four parts, among which, 15 hollow rods 4 are taken as a group, the hollow rods 4 in the same group are equivalent to be connected in parallel between the bottom plate 2 and the cover plate 1, the connection is stable and reliable, and the four parts are connected in series by the four groups of connecting plates 5, the four groups of fan-shaped plates of the cover plate 1 are fixedly connected by two groups of connecting plates 5, among which, the two groups of fan-shaped plates of the cover plate 1 are fixedly connected by a group of connecting plates 5, the four groups of fan-shaped plates of the upper flange plate 21 are fixedly connected by the other two groups of connecting plates 5, among which, the two groups of fan-shaped plates of the upper flange plate 21 are fixedly connected by a group of connecting plates 5; and,

[0030] A plurality of heat dissipation pipes 6, the heat dissipation pipe 6 is a U-shaped pipe, the heat dissipation pipe 6 is fixed on the lower flange plate 22, and the two ends of the heat dissipation pipe 6 extend out of the lower flange plate 22, the two ends of the heat dissipation pipe 6 can be connected with the external cold air circulation device to quickly take away the heat generated by the product crystallization in the center of the furnace, keep the temperature of the center of the furnace and the edge of the furnace consistent, and the heat dissipation pipe 6 is evenly distributed around the lifting rod 3 in the center of the four groups of hollow rods 4;

[0031] The bottom plate 2 is installed by the supporting leg 222 to elevate the upper flange plate 21, and the space for accommodating the lower end of the hollow rod 4 is formed between the upper flange plate 21 and the lower flange plate 22, the lower end of the hollow rod 4 is inserted into the positioning hole two 211 and is arranged in parallel with the lifting rod 3, the upper end of the hollow rod 4 is inserted into the positioning hole one 11 and is locked by the upper nut 41, and the lower nut 42 is connected to the upper end of the hollow rod 4 and abuts against the upper flange plate 21.

[0032] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0033] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A nanocrystalline core high efficiency longitudinal magnetic field heat treatment rack characterized by, The utility model relates to a kind of heat dissipation device, including: Cover plate (1), it is equipped with several positioning hole one (11) and ventilation hole one (12) on the cover plate (1), the cover plate (1) is made of four groups of identical fan-shaped plate, and positioning hole one (11) and ventilation hole one (12) are evenly distributed on each group of fan-shaped plate of cover plate (1); Bottom plate (2), the bottom plate (2) includes upper flange plate (21) and lower flange plate (22), the upper flange plate (21) is located above the lower flange plate (22), the upper flange plate (21) is evenly distributed with several positioning hole two (211) and ventilation hole two (212) corresponding to the evenly distributed position hole one on the cover plate (1), the upper flange plate (21) is made of four groups of identical fan-shaped plate, and positioning hole two (211) and ventilation hole two (212) are evenly distributed on each group of fan-shaped plate of upper flange plate (21), the upper flange plate (21) is identical with the cover plate (1), the lower flange plate (22) is equipped with ventilation hole three (221) and the supporting leg (222) of fixedly connected upper flange plate (21) respectively; Hoisting rod piece (3), the hoisting rod piece (3) one end is fixed in the center of lower flange plate (22), and hoisting rod piece (3) other end extends to cover plate (1) above, and hoisting rod piece (3) is perpendicular to the distribution of lower flange plate (22); Several hollow material rods (4), the hollow material rod (4) is evenly distributed between the fan-shaped plate of cover plate (1) and upper flange plate (21), and the hollow material rod (4) two ends are detachably installed with positioning hole one (11) and positioning hole two (211) respectively; Four groups of connecting sheets (5), the fan-shaped plate of cover plate (1), the fan-shaped plate of upper flange plate (21) and the hollow material rod (4) connected between the fan-shaped plate of upper and lower positions are divided into four parts, and four groups of connecting sheets (5) are connected in series between four parts, the four groups of fan-shaped plate of cover plate (1) are fixedly connected by two groups of connecting sheets (5), and the four groups of fan-shaped plate of upper flange plate (21) are fixedly connected by other two groups of connecting sheets (5);And, Several heat dissipation pipes (6), the heat dissipation pipe (6) is fixed on lower flange plate (22), and the both ends of heat dissipation pipe (6) all extend lower flange plate (22), and heat dissipation pipe (6) is located in the center of four groups of hollow material rods (4), and heat dissipation pipe (6) is evenly distributed around hoisting rod piece (3).

2. A nanocrystalline magnetic core high efficiency longitudinal magnetic field heat treatment rack according to claim 1, characterized in that: The bottom plate (2) is installed by supporting leg (222) to raise upper flange plate (21), and the space for accommodating the lower end insertion of hollow material rod (4) is formed between the upper flange plate (21) and lower flange plate (22), and the lower end of hollow material rod (4) is inserted in positioning hole two (211) and is arranged in parallel with hoisting rod piece (3).

3. A nanocrystalline magnetic core high efficiency longitudinal magnetic field heat treatment rack according to claim 1, characterized in that: The upper end of hollow material rod (4) is inserted in positioning hole one (11) and is locked by upper nut (41).

4. A nanocrystalline magnetic core high efficiency longitudinal magnetic field heat treatment rack according to claim 1, characterized in that: Lower nut (42) is connected on the hollow material rod (4) and is abutted on the upper flange plate (21).

5. A nanocrystalline magnetic core high efficiency longitudinal magnetic field heat treatment rack according to claim 1, characterized in that: The heat dissipation pipe (6) is U-shaped pipe.

Images