Linear magnetic circuit device and electromagnetic induction heater

A magnetic circuit, linear technology, applied in the direction of electric/magnetic/electromagnetic heating, induction heating, coil device, etc., can solve the problem of uneven heating temperature distribution, and achieve good heating effect, uniform heating temperature distribution, and uniform magnetic field distribution. Effect

Active Publication Date: 2021-06-04
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a linear magnetic circuit device and an electromagnetic induction heater, which are used to solve the technology of uneven heating temperature distribution of the electromagnetic induction heater in the prior art question

Method used

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  • Linear magnetic circuit device and electromagnetic induction heater
  • Linear magnetic circuit device and electromagnetic induction heater
  • Linear magnetic circuit device and electromagnetic induction heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a linear magnetic circuit device to solve the technical problem of uneven heating temperature distribution of the electromagnetic induction heater in the prior art. Specifically, the magnetic circuit in the prior art is broken by a non-magnetic support plate, resulting in the magnetic field being divided into multiple sections, and the discontinuous magnetic field causes uneven heating temperature distribution.

[0047]The linear magnetic circuit device includes a magnetizer 1, a heat dissipation sheet 2, a coil 3 and a supporting assembly. As a best implementation mode of this embodiment, the magnetizer 1 in this embodiment is a silicon steel sheet or a magnetically conductive Sheet structure, the heat dissipation sheet 2 is an aluminum sheet or copper sheet with good thermal conductivity and insulation sheet structure, and the thickness of the heat dissipation sheet 2 is 0.3mm to 0.5mm, such as 0.3mm, 0.5mm, etc. A plurality of magnetic conduc...

Embodiment 2

[0051] This embodiment serves as an implementation of Embodiment 1, specifically, this embodiment provides a middle support structure 5 .

[0052] The heat dissipation sheet 2 in this embodiment includes several middle sheets located in the middle of the magnetic circuit. The middle support structure 5 in this embodiment includes a first block 501, and one end of the first block 501 is insulated and connected to at least two middle sheets. Specifically, one end of the first block 501 is insulated and connected to two adjacent middle sheets, and the other end of the first block 501 is insulated and connected to the frame 6 . In this structure, the first block 501 is used to pull and hook the heat dissipation sheet 2 in the magnetic circuit, so as to support the middle of the magnetic circuit, and the first block 501 does not block the magnetic circuit.

[0053] As a specific implementation of this embodiment, the central support structure 5 in this embodiment also includes a fi...

Embodiment 3

[0058] This embodiment serves as another implementation manner of Embodiment 1, specifically, this embodiment provides a middle support structure 5 .

[0059] The heat dissipation sheet 2 in this embodiment includes several middle sheets located in the middle of the magnetic circuit, and the middle sheet is divided into a first sheet and a second sheet. The middle support structure 5 in this embodiment includes a first plate 511, At least two first sheets are integrally formed or welded with a first plate body 511, and the free ends of the first plate body 511 are integrally formed or welded with a first connecting plate 513, and the first connecting plate 513 is opposite to the first plate body 511 is vertical, and the first connecting plate 513 is insulated and connected to the frame 6 . The first sheet in this embodiment is a structural member with a shape different from that of conventional heat sinks, which not only serves to dissipate heat, but also serves as a support f...

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Abstract

The invention relates to a linear magnetic circuit device and an electromagnetic induction heater, belongs to the technical field of electromagnetic induction heating, and solves the technical problem of non-uniform heating temperature distribution of an electromagnetic induction heater in the prior art. The linear magnetic circuit device comprises magnetizers and heat dissipation sheets, and a plurality of magnetizers and heat dissipation sheets being laminated together to form a magnetic circuit; a coil, mounted on the magnetic circuit; a supporting assembly, supported on the periphery of the magnetic circuit so as to support the magnetic circuit, the magnetic circuit of the linear magnetic circuit device of the structure cannot enable the magnetic field to be disconnected in the magnetic conduction process, and therefore the formed magnetic field is distributed more evenly, and the heating temperature is distributed more evenly when the linear magnetic circuit device is used for heating. The electromagnetic induction heater comprises the linear magnetic circuit device, so that the heating effect of the electromagnetic induction heater is better.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic induction heating, in particular to a linear magnetic circuit device and an electromagnetic induction heater. Background technique [0002] Electromagnetic induction heating equipment is widely used because of its fast heating speed and high power conversion efficiency. Its working principle is that the alternating induction magnetic field generated by the electromagnetic induction heater acts on the conductive heated material. An induced current is generated, and the thermal effect of the current heats the material. [0003] At present, there is a slab electromagnetic induction heating technology used in the field of metallurgical steel rolling technology. The so-called slab electromagnetic induction heating technology generally includes two electromagnetic induction heater devices that generate a magnetic field and are respectively installed above and below the heated slab. The coil in ...

Claims

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Application Information

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IPC IPC(8): H05B6/02H05B6/36H05B6/42
CPCH05B6/02H05B6/365H05B6/42
Inventor 刘海云
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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