A heat treatment device for magnetic core processing

By linking the lifting clamping mechanism with the gas disturbance mechanism, the problem of bottom thermal barrier in the heat treatment of magnetic core components is solved, and uniform heating of the entire surface of the magnetic core components is achieved, thereby improving the stability and reliability of magnetic properties.

CN224548466UActive Publication Date: 2026-07-24JIANGSU XUSHENGXIN ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XUSHENGXIN ELECTRONIC TECH CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In the existing heat treatment process of magnetic core components, the contact between the bottom of the magnetic core component and the surface of the bracket leads to the obstruction of heat conduction, which causes the internal stress to be unable to be fully released, resulting in uneven distribution of magnetic permeability and thus affecting magnetic properties.

Method used

The design employs a linkage between the lifting mechanism and the clamping mechanism to clamp the side wall of the magnetic core. When the bracket descends, it remains suspended in the air. Combined with the gas disturbance mechanism, it forms an airflow circulation to evenly heat the bottom of the magnetic core and avoid thermal blockage.

Benefits of technology

This achieves uniform heating across the entire surface of the magnetic core, improving heat treatment quality and enhancing the stability and reliability of magnetic properties.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224548466U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of heat treatment devices for magnetic core processing, including furnace body and heating plate being set to the furnace body bottom, the side wall of the furnace body is equipped with sealing furnace cover, the inside horizontal of the furnace body is equipped with bracket, the bottom of the furnace body is equipped with lifting mechanism connected with the bracket;The both sides of the furnace body are equipped with inwardly extending clamping mechanism, and the clamping end of two clamping mechanisms is located above the bracket;The side wall bottom of the furnace body is equipped with inwardly extending gas disturbance mechanism.The utility model fixes magnetic core by clamping mechanism, lifting mechanism drives bracket to drop to make magnetic core bottom and tray separate, cooperate gas disturbance mechanism to promote high-temperature airflow circulation, solve the problem of insufficient heating of magnetic core bottom caused by traditional bracket support, realize full surface even heating, improve heat treatment quality, and structure is sealed reliably, convenient to operate, effectively avoid heat loss and external pollution, guarantee the stability of magnetic core performance.
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Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing technology, specifically to a heat treatment device for processing magnetic core components. Background Technology

[0002] In the field of electronic component manufacturing, the heat treatment process of magnetic core components (such as transformer cores and inductor cores) is a key factor that determines their permeability, loss characteristics and other critical properties. During the heat treatment process, uniform heating is a necessary condition to ensure the consistency of the internal crystal structure of the magnetic core component and to improve the stability of its magnetic properties.

[0003] In existing technologies, heat treatment of magnetic cores is usually carried out using a bracket support method. The magnetic core is placed on a high-temperature resistant bracket and heated by equipment such as a box furnace or vacuum furnace. However, the bottom of the magnetic core is in direct contact with the surface of the bracket, which causes a thermal conduction barrier to form in this area. For example, in the annealing process of soft magnetic materials, if the temperature at the bottom of the magnetic core does not reach above the Curie point, its internal stress cannot be fully released, which will lead to uneven distribution of magnetic permeability. This may cause a weakening of the anisotropy of the magnet and affect the overall magnetic properties.

[0004] To address this, a heat treatment apparatus for processing magnetic core components is proposed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heat treatment device for processing magnetic core parts, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution.

[0007] This utility model provides a heat treatment device for processing magnetic core components, including a furnace body and a heating plate disposed at the bottom of the furnace body. The side wall of the furnace body is provided with a sealed furnace cover, the interior of the furnace body is provided with a horizontal bracket, and the bottom of the furnace body is provided with a lifting mechanism connected to the bracket.

[0008] Both sides of the furnace body are provided with inwardly extending clamping mechanisms, and the clamping ends of the two clamping mechanisms are located above the bracket.

[0009] The bottom of the side wall of the furnace body is provided with an inwardly extending gas disturbance mechanism.

[0010] Preferably, the lifting mechanism includes a first electric push rod fixedly mounted on the top of the furnace body. A fixed plate is fixedly mounted on the moving end of the first electric push rod. A plurality of evenly distributed fixed rods are fixedly mounted on the circumferential wall of the fixed plate. A lifting ring is provided around the first electric push rod. The ends of the plurality of fixed rods away from the fixed plate are all fixedly connected to the upper surface of the lifting ring. A plurality of evenly distributed lifting rods are fixedly mounted on the lower surface of the lifting ring, and the lower ends of the plurality of lifting rods extend into the interior of the furnace body and are fixedly connected to the bracket.

[0011] Preferably, the top of the furnace body is fixedly embedded with a plurality of evenly distributed first sliding sealing sleeves, and the plurality of lifting rods are respectively slidably disposed inside the plurality of first sliding sealing sleeves.

[0012] Preferably, the bracket includes a tray located in the middle of the furnace body, and a plurality of evenly distributed support rods are fixedly provided on the circumferential wall of the tray, and the lower ends of the plurality of lifting rods are respectively fixedly connected to the rod walls of the plurality of support rods.

[0013] Preferably, the clamping mechanism includes a U-shaped plate fixedly disposed on the side wall of the furnace body, a second electric push rod fixedly disposed inside the U-shaped plate, a pushing rod extending into the furnace body fixedly disposed at the moving end of the second electric push rod, and a clamping plate fixedly disposed at the end of the pushing rod away from the second electric push rod.

[0014] Preferably, a second sealing sleeve is fixedly embedded in the side wall of the furnace body, and the rod wall of the push rod is slidably disposed inside the second sealing sleeve.

[0015] Preferably, the gas disturbance mechanism includes a disturbance motor fixedly mounted on the side wall of the furnace body, the output shaft of the disturbance motor extending into the interior of the furnace body and fixedly provided with disturbance fan blades.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Through the linkage design of the lifting mechanism and the clamping mechanism, the clamping mechanism drives the clamping plate to hold the side wall of the magnetic core component via the second electric push rod, ensuring that the magnetic core component remains suspended when the bracket descends, thus preventing displacement. The lifting mechanism uses the first electric push rod to move the entire bracket downward, separating the tray from the bottom of the magnetic core component and exposing the bottom area to be heated. At the same time, the disturbance motor of the gas disturbance mechanism drives the disturbance fan blades to form airflow circulation in the furnace, which, together with the heating plate, allows the high-temperature airflow to evenly wash the bottom of the magnetic core component, achieving uniform heating of the entire surface and improving the heat treatment quality. In addition, the bracket adopts a combination structure of tray and support rod, which not only ensures the stability of the magnetic core component placement but also reserves space for bottom airflow circulation. The overall structure is simple and reliable, effectively improving the uniformity and reliability of the heat treatment of the magnetic core component. Attached Figure Description

[0018] Figure 1 This is a first-person perspective view of the present invention.

[0019] Figure 2 This is a perspective view of the present invention from a second perspective;

[0020] Figure 3 This is a first-view perspective view of the present invention.

[0021] Figure 4 This is a perspective view of the present invention cut out from a second perspective.

[0022] In the diagram: 1. Furnace body; 2. Heating plate; 3. Bracket; 4. First electric push rod; 5. Fixed plate; 6. Fixed rod; 7. Lifting ring; 8. Lifting rod; 9. First sliding sealing sleeve; 10. Tray; 11. Support rod; 12. U-shaped plate; 13. Second electric push rod; 14. Push rod; 15. Clamping plate; 16. Second sealing sliding sleeve; 17. Disturbance motor; 18. Disturbance fan blade. Detailed Implementation

[0023] A heat treatment apparatus for processing magnetic core components, such as Figure 1-4 As shown, the furnace includes a furnace body 1 and a heating plate 2 disposed at the bottom of the furnace body 1. A sealed furnace cover is provided on the side wall of the furnace body 1. A horizontal support 3 is provided inside the furnace body 1. The support 3 includes a tray 10 located in the middle of the furnace body 1. Multiple through holes are opened on the surface of the tray 10. Multiple evenly distributed support rods 11 are fixedly provided on the circumferential wall of the tray 10. The lower ends of multiple lifting rods 8 are respectively fixedly connected to the rod walls of the multiple support rods 11. A lifting mechanism connected to the support 3 is provided at the bottom of the furnace body 1. The lifting mechanism includes a first electric push rod 4 fixedly disposed at the top of the furnace body 1. A fixed plate 5 is fixedly disposed at the moving end of the first electric push rod 4. The circumferential wall is fixed with multiple evenly distributed fixed rods 6. The periphery of the first electric push rod 4 is provided with a lifting ring 7. The ends of the multiple fixed rods 6 away from the fixed plate 5 are all fixedly connected to the upper surface of the lifting ring 7. The lower surface of the lifting ring 7 is fixed with multiple evenly distributed lifting rods 8, and the lower ends of the multiple lifting rods 8 extend into the interior of the furnace body 1 and are fixedly connected to the bracket 3. The top of the furnace body 1 is fixedly embedded with multiple evenly distributed first sliding sealing sleeves 9. The multiple lifting rods 8 are slidably disposed inside the multiple first sliding sealing sleeves 9. The first sliding sealing sleeves 9 can ensure the sliding seal between the lifting rods 8 and the furnace body 1.

[0024] Both sides of the furnace body 1 are provided with inwardly extending clamping mechanisms, and the clamping ends of the two clamping mechanisms are located above the bracket 3. The clamping mechanism includes a U-shaped plate 12 fixedly installed on the side wall of the furnace body 1. A second electric push rod 13 is fixedly installed inside the U-shaped plate 12. A push rod 14 extending into the furnace body 1 is fixedly installed at the moving end of the second electric push rod 13. A clamping plate 15 is fixedly installed at the end of the push rod 14 away from the second electric push rod 13. A second sealing sleeve 16 is fixedly embedded in the side wall of the furnace body 1. The rod wall of the push rod 14 is slidably installed inside the second sealing sleeve 16. The second sealing sleeve 16 can ensure the sliding seal between the push rod 14 and the furnace body 1.

[0025] The bottom of the side wall of the furnace body 1 is provided with an inwardly extending gas disturbance mechanism. The gas disturbance mechanism includes a disturbance motor 17 fixedly installed on the side wall of the furnace body 1. The output shaft of the disturbance motor 17 extends into the interior of the furnace body 1 and is fixedly provided with a disturbance fan blade 18. When the disturbance motor 17 is started, its output shaft drives the disturbance fan blade 18 to rotate at high speed, forming a strong airflow circulation at the bottom of the furnace body 1.

[0026] In summary: First, open the sealed furnace cover and place the magnetic core on the tray 10 of the bracket 3. The tray 10 is connected to the lifting rod 8 through the support rod 11. Then, close the sealed furnace cover and start the heating plate 2 to heat the inside of the furnace body 1 to begin the conventional heat treatment of the magnetic core.

[0027] After the upper surface and sides of the magnetic core are heated to the preset process temperature, the control system triggers the clamping program and controls the second electric push rod 13 to extend. Its moving end pushes the push rod 14 to slide smoothly in the second sealing sleeve 16. The clamping plate 15 at the front end of the push rod 14 moves toward the magnetic core until the clamping plates 15 on both sides simultaneously press against the side wall of the magnetic core. The pushing force of the second electric push rod 13 forms a stable clamping, preventing the magnetic core from shifting during the descent of the bracket 3.

[0028] After the magnetic core is clamped and fixed, the control system commands the first electric push rod 4 to retract. Its top moving end drives the fixed plate 5 to move downward. The fixed plate 5 pulls the lifting ring 7 downward synchronously through the evenly distributed fixed rods 6 on the circumferential wall. The lifting rod 8 at the bottom of the lifting ring 7 then slides downward in the first sliding sealing sleeve 9, thereby driving the bracket 3 to descend as a whole. At this time, the tray 10 gradually separates from the bottom of the magnetic core, and the bottom of the magnetic core, which was originally covered by the bracket 3, is completely exposed inside the furnace body 1. At the same time, the disturbance motor 17 of the gas disturbance mechanism... Upon startup, its output shaft drives the perturbation fan blade 18 to rotate at high speed, forming a strong airflow circulation at the bottom of the furnace body 1. The high-temperature airflow generated by the heating plate 2 reaches the bottom of the magnetic core through the gap between the support rods 11, achieving supplementary heating of this area. Since the clamping plate 15 continuously maintains the clamping state, the magnetic core is suspended in the furnace body 1, and there is no contact thermal resistance between the bottom and the tray 10. With the perturbation fan blade 18 pushing the hot airflow to evenly sweep the bottom surface, the problem of insufficient bottom heating in traditional processes can be effectively eliminated, ensuring the uniformity of heat treatment of the entire surface of the magnetic core.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heat treatment apparatus for processing magnetic core components, comprising a furnace body (1) and a heating plate (2) disposed at the bottom of the furnace body (1), wherein the side wall of the furnace body (1) is provided with a sealed furnace cover, characterized in that: The furnace body (1) is provided with a horizontal bracket (3) inside, and the bottom of the furnace body (1) is provided with a lifting mechanism connected to the bracket (3); Both sides of the furnace body (1) are provided with inwardly extending clamping mechanisms, and the clamping ends of the two clamping mechanisms are located above the bracket (3). The bottom of the side wall of the furnace body (1) is provided with an inwardly extending gas disturbance mechanism.

2. The heat treatment apparatus for processing magnetic core components according to claim 1, characterized in that: The lifting mechanism includes a first electric push rod (4) fixedly installed on the top of the furnace body (1). The moving end of the first electric push rod (4) is fixedly provided with a fixed plate (5). The circumferential wall of the fixed plate (5) is fixedly provided with a plurality of evenly distributed fixed rods (6). The periphery of the first electric push rod (4) is provided with a lifting ring (7). The ends of the plurality of fixed rods (6) away from the fixed plate (5) are all fixedly connected to the upper surface of the lifting ring (7). The lower surface of the lifting ring (7) is fixedly provided with a plurality of evenly distributed lifting rods (8), and the lower ends of the plurality of lifting rods (8) extend into the interior of the furnace body (1) and are fixedly connected to the bracket (3).

3. The heat treatment apparatus for processing magnetic core components according to claim 2, characterized in that: The top of the furnace body (1) is fixedly embedded with a plurality of evenly distributed first sliding sealing sleeves (9), and the plurality of lifting rods (8) are respectively slidably disposed inside the plurality of first sliding sealing sleeves (9).

4. The heat treatment apparatus for processing magnetic core components according to claim 2, characterized in that: The bracket (3) includes a tray (10) located in the middle of the furnace body (1). The circumferential wall of the tray (10) is fixedly provided with a plurality of evenly distributed support rods (11). The lower ends of the plurality of lifting rods (8) are respectively fixedly connected to the rod walls of the plurality of support rods (11).

5. The heat treatment apparatus for processing magnetic core components according to claim 1, characterized in that: The clamping mechanism includes a U-shaped plate (12) fixedly installed on the side wall of the furnace body (1). A second electric push rod (13) is fixedly installed inside the U-shaped plate (12). A push rod (14) extending into the furnace body (1) is fixedly installed at the moving end of the second electric push rod (13). A clamping plate (15) is fixedly installed at the end of the push rod (14) away from the second electric push rod (13).

6. The heat treatment apparatus for processing magnetic core components according to claim 5, characterized in that: The side wall of the furnace body (1) is fixedly embedded with a second sealing sleeve (16), and the rod wall of the push rod (14) is slidably disposed inside the second sealing sleeve (16).

7. The heat treatment apparatus for processing magnetic core components according to claim 1, characterized in that: The gas disturbance mechanism includes a disturbance motor (17) fixedly installed on the side wall of the furnace body (1), and the output shaft of the disturbance motor (17) extends into the interior of the furnace body (1) and is fixedly provided with disturbance fan blades (18).