Multi-layer type EMC magnetic core heat treatment placing rack

Abstract

The utility model relates to the technical field of magnetic core placing equipment, and discloses a multi-layer EMC magnetic core heat treatment placing rack which comprises a heat insulation box, the bottom end of the heat insulation box is fixedly connected with an auxiliary mechanism, the outer wall of the heat insulation box is provided with two rectangular through holes, the hole walls of the rectangular through holes are movably connected with hollow heat insulation blocks, and the hollow heat insulation blocks are fixedly connected with the bottom end of the heat insulation box. The outer walls of the hollow heat insulation blocks are jointly and fixedly connected with side plates, the inner walls of the hollow heat insulation blocks are fixedly connected with permanent magnet plates, and the upper surfaces of the hollow heat insulation blocks are fixedly connected with a plurality of magnetic ring placing rods. The EMC magnetic core heat treatment placing rack has the capability of placing the EMC magnetic core in a suspension manner, the heating uniformity of the EMC magnetic core heat treatment is improved, the effect and the reliability of the EMC magnetic core heat treatment are further ensured, and the EMC magnetic core heat treatment efficiency is improved through multi-layer placement.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic core placement equipment, in particular to a multi-layer EMC magnetic core heat treatment placement rack. Background Art

[0002] EMC (electromagnetic compatibility) magnetic ring is a magnetic ring material used for electromagnetic shielding and magnetic field management. EMC magnetic rings usually have high conductivity and high magnetic permeability to provide effective electromagnetic shielding effect. The EMC magnetic ring made of nanocrystalline material has an inductance much larger than that of ferrite and other powder cores of the same volume in the range of 150kHz to 30MHz. Therefore, under the same volume, the common mode inductor made of nanocrystalline core has much higher performance than similar ferrite and other powder cores. With the trend of increasingly lightweight and low-cost photovoltaic and new energy vehicles, the market demand for high-frequency nanocrystalline common mode inductors will become increasingly larger.

[0003] At present, in order to improve the high-frequency impedance characteristics of EMC cores, it is necessary to heat treat the EMC cores. Usually, the EMC cores are stacked and placed in a placement rack, and the placement rack is placed in a heat treatment device for treatment. However, in this EMC core heat treatment method, part of the surface of the EMC core is in contact with the adjacent EMC core or the surface of the placement rack, which causes uneven heating of the EMC core, leads to differences in the hardness of the core and inconsistent magnetic properties, further affecting the reliability and effect of the use of the EMC core.

[0004] Therefore, we propose a multi-layer EMC core heat treatment placement rack to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above problems and proposes a multi-layer EMC magnetic core heat treatment placement rack.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A multi-layer EMC magnetic core heat treatment placement rack comprises a heat insulation box, the bottom end of which is fixedly connected to an auxiliary mechanism, the outer wall of the heat insulation box is provided with two rectangular through holes, and the hole walls of the rectangular through holes are movably connected to a hollow heat insulation block, the outer walls of the hollow heat insulation block are commonly fixedly connected to a side plate, the inner wall of the hollow heat insulation block is fixedly connected to a permanent magnet plate, and the upper surface of the hollow heat insulation block is fixedly connected to a plurality of magnetic ring placement rods.

[0008] Preferably, the auxiliary mechanism includes an insulating hollow cover fixedly connected to the inner wall of the bottom end of the thermal insulation box, the inner wall of the insulating hollow cover is fixedly connected to a motor, the output end of the motor passes through the outer wall of the insulating hollow cover and is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly sleeved with an impeller, the upper surface of the insulating hollow cover is fixedly connected to an air guide cover, the output end of the air guide cover is fixedly sleeved with an insulation board, the outer wall of the insulation board is fixedly connected to the inner wall of the thermal insulation box, the insulation board and the outer wall of the insulation box are jointly fixedly connected with an air inlet bend pipe, and a plurality of jet holes are provided on the side of the insulation box close to the hollow insulation block.

[0009] Preferably, two symmetrically distributed handles are fixedly connected to the outer wall of the side panel, and a plurality of limit rods are obliquely fixedly connected to the bottom end of the side panel.

[0010] Preferably, two symmetrically distributed rollers are fixedly connected to the lower surface of one of the hollow insulation blocks.

[0011] Preferably, the thickness of the top end of the hollow insulation block is one fifth of the thickness of the bottom end of the hollow insulation block.

[0012] Preferably, the outer walls of the heat-insulating hollow cover and the heat-insulating box are fixedly connected to each other with an air intake insulation pipe and an exhaust insulation pipe.

[0013] Compared with the prior art, the utility model provides a multi-layer EMC magnetic core heat treatment placement rack, which has the following beneficial effects:

[0014] 1. The multi-layer EMC core heat treatment placement rack is provided with a permanent magnet plate, a magnetic ring placement ring and a hollow insulation block. When the EMC core needs heat treatment, the EMC core is placed in a magnetic ring placement rod. During the placement of the EMC core, the surface of the EMC core has the same magnetic properties as the surface of the adjacent EMC core, and the surface of the EMC core at the bottom has the same magnetic properties as the top of the permanent magnet plate, so that the EMC cores are suspended on the magnetic ring placement rod without being stacked, ensuring that each surface of the EMC core is heated evenly, and a magnetic ring placement rod can be used to stack multiple EMC cores, and then the hollow insulation block is inserted into the insulation box by a roller, and the side plate and the limit rod are contacted with the bottom wall of the processing chamber of the heat treatment equipment. This mechanism enables the EMC core heat treatment placement rack to have the ability to suspend and place the EMC core, improve the uniformity of heat treatment of the EMC core, thereby ensuring the effect and reliability of the heat treatment of the EMC core, and improve the heat treatment efficiency of the EMC core through multi-layer placement.

[0015] 2. The multi-layer EMC core heat treatment placement rack, through the auxiliary mechanism, when the EMC core heat treatment placement rack is used, first the air intake insulation pipe and the exhaust insulation pipe are extended to the outside of the heat treatment equipment to provide cold air to cool the motor, and then the motor rotates the impeller through the rotating rod, and the impeller draws air from the hollow insulation block through the air guide cover and the air intake elbow, and the air is then ejected through the air jet holes on the insulation box. The ejected airflow can rotate the suspended EMC core, further ensuring the uniformity of the heat treatment of the EMC core. This mechanism can improve the uniformity of the heat treatment of the EMC core.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model enables the EMC core heat treatment placement rack to have the ability to suspend and place the EMC core, improves the heating uniformity of the EMC core heat treatment, thereby ensuring the effect and reliability of the EMC core heat treatment, and improves the efficiency of the EMC core heat treatment through multi-layer placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a multi-layer EMC magnetic core heat treatment placement rack proposed by the utility model;

[0018] Figure 2 This is a partially enlarged structural schematic diagram of a multi-layer EMC magnetic core heat treatment placement rack proposed by the utility model.

[0019] In the figure: 1. heat insulation box; 2. auxiliary mechanism; 21. heat insulation hollow cover; 22. motor; 23. rotating rod; 24. impeller; 25. air guide cover; 26. heat insulation board; 27. air intake elbow; 28. jet hole; 3. hollow insulation block; 4. side panel; 5. permanent magnet board; 6. magnetic ring placement rod; 7. handle; 8. limit rod; 9. roller; 10. air intake insulation pipe; 11. exhaust insulation pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-2A multi-layer EMC magnetic core heat treatment placement rack comprises a heat insulation box 1, the bottom end of the heat insulation box 1 is fixedly connected to an auxiliary mechanism 2, the auxiliary mechanism 2 comprises a heat insulation hollow cover 21 fixedly connected to the inner wall of the bottom end of the heat insulation box 1, the inner wall of the heat insulation hollow cover 21 is fixedly connected to a motor 22, the output end of the motor 22 passes through the outer wall of the heat insulation hollow cover 21, and is fixedly connected to a rotating rod 23, the outer wall of the rotating rod 23 is fixedly sleeved with an impeller 24, the upper surface of the heat insulation hollow cover 21 is fixedly connected to an air guide cover 25, the output end of the air guide cover 25 is fixedly sleeved with a heat insulation board 26, the outer wall of the heat insulation board 26 is fixedly connected to the inner wall of the heat insulation box 1, the heat insulation board 26 and the outer wall of the heat insulation box 1 are fixedly connected to an air intake elbow 27, a plurality of jet holes 28 are provided on one side of the heat insulation box 1 close to the hollow insulation block 3, and the mechanism can ensure the uniformity of heat treatment of the EMC magnetic core.

[0022] The outer wall of the heat insulation box 1 is provided with two rectangular through holes, and the hole walls of the rectangular through holes are movably connected with hollow insulation blocks 3, the outer walls of the hollow insulation blocks 3 are commonly fixedly connected with side panels 4, the outer walls of the side panels 4 are fixedly connected with two symmetrically distributed handles 7, the bottom ends of the side panels 4 are obliquely fixedly connected with a plurality of limit rods 8, the lower surface of one of the hollow insulation blocks 3 is fixedly connected with two symmetrically distributed rollers 9, the rollers 9 can facilitate the movement of the placement frame, the inner wall of the hollow insulation block 3 is fixedly connected with a permanent magnet plate 5, and the upper surface of the hollow insulation block 3 is fixedly connected with a plurality of magnetic ring placement rods 6.

[0023] The top thickness of the hollow insulation block 3 is one fifth of the bottom thickness of the hollow insulation block 3. The thinner top of the hollow insulation block 3 can ensure that the magnetic repulsion force of the permanent magnet plate 5 can be transmitted to the EMC core at the top of the hollow insulation block 3, and ensure that the EMC magnetism can be suspended on the magnetic ring placement rod 6.

[0024] The insulating hollow cover 21 and the outer wall of the insulating box 1 are fixedly connected with an air intake insulation pipe 10 and an exhaust insulation pipe 11, which extend the air intake insulation pipe 10 and the exhaust insulation pipe 11 to the outside of the heat treatment equipment to provide cold air to cool the motor 22 and ensure the safety of the motor.

[0025] In the utility model, when the EMC core needs to be heat treated, the EMC core is placed in the magnetic ring placement rod 6. Then, during the placement process of the EMC core, the surface of the EMC core is magnetically the same as the surface of the adjacent EMC core, and the surface of the EMC core at the bottom is magnetically the same as the top of the permanent magnet plate 5. As a result, the EMC cores are suspended on the magnetic ring placement rod 6 without being stacked, ensuring that each surface of the EMC core is heated evenly. Moreover, a magnetic ring placement rod 6 can be used to stack multiple EMC cores. Then, the hollow insulation block 3 is inserted into the insulation box 1 through the roller 9, and the side plate 4 and the limit rod 8 are in contact with the bottom wall of the processing chamber of the heat treatment equipment. When the EMC core heat treatment placement rack is used, first, The air intake insulation pipe 10 and the exhaust insulation pipe 11 extend to the outside of the heat treatment equipment to provide cold air to cool the motor 22. Then the motor 22 rotates the impeller 24 through the rotating rod 23. The impeller 24 draws air from the hollow insulation block 3 through the wind guide cover 25 and the air intake elbow 27. The air is then ejected through the jet hole 28 on the insulation box 1. The ejected airflow can rotate the suspended EMC core, further ensuring the uniformity of the heat treatment of the EMC core. This mechanism enables the EMC core heat treatment placement rack to have the ability to suspend and place the EMC core, improve the uniformity of the heat treatment of the EMC core, thereby ensuring the effect and reliability of the heat treatment of the EMC core, and improving the efficiency of the heat treatment of the EMC core through multi-layer placement.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-layer EMC magnetic core heat treatment rack, comprising a heat insulation box (1), characterized in that: The bottom end of the heat insulation box (1) is fixedly connected to an auxiliary mechanism (2), the outer wall of the heat insulation box (1) is provided with two rectangular through holes, and the hole walls of the rectangular through holes are movably connected to a hollow heat insulation block (3), the outer walls of the hollow heat insulation block (3) are fixedly connected to a side plate (4), the inner wall of the hollow heat insulation block (3) is fixedly connected to a permanent magnetic plate (5), and the upper surface of the hollow heat insulation block (3) is fixedly connected to a plurality of magnetic ring placement rods (6).

2. A multi-layer EMC magnetic core heat treatment placement rack according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a heat-insulating hollow cover (21) fixedly connected to the inner wall of the bottom end of the heat-insulating box (1); the inner wall of the heat-insulating hollow cover (21) is fixedly connected to a motor (22); the output end of the motor (22) passes through the outer wall of the heat-insulating hollow cover (21) and is fixedly connected to a rotating rod (23); the outer wall of the rotating rod (23) is fixedly sleeved with an impeller (24); the upper surface of the heat-insulating hollow cover (21) is fixedly connected to an air guide cover (25); the output end of the air guide cover (25) is fixedly sleeved with a heat insulation board (26); the outer wall of the heat insulation board (26) is fixedly connected to the inner wall of the heat-insulating box (1); the heat insulation board (26) and the outer wall of the heat-insulating box (1) are fixedly connected to an air intake elbow (27); and a plurality of air injection holes (28) are provided on a side of the heat-insulating box (1) close to the hollow heat-insulating block (3).

3. The multi-layer EMC magnetic core heat treatment placement rack according to claim 1, characterized in that: Two symmetrically distributed handles (7) are fixedly connected to the outer wall of the side plate (4), and a plurality of limit rods (8) are fixedly connected to the bottom end of the side plate (4) in an inclined manner.

4. The multi-layer EMC magnetic core heat treatment placement rack according to claim 1, characterized in that: Two symmetrically distributed rollers (9) are fixedly connected to the lower surface of one of the hollow heat-insulating blocks (3).

5. The multi-layer EMC magnetic core heat treatment placement rack according to claim 1, characterized in that: The thickness of the top end of the hollow heat-insulating block (3) is one fifth of the thickness of the bottom end of the hollow heat-insulating block (3).

6. The multi-layer EMC magnetic core heat treatment placement rack according to claim 2, characterized in that: The outer wall of the heat-insulating hollow cover (21) and the heat-insulating box (1) are jointly fixedly connected with an air intake heat-insulating pipe (10) and an exhaust heat-insulating pipe (11).

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