Screw electromagnetic coil disk and its producing method

A technology of electromagnetic coils and helical coils, applied in coil devices, cooling/ventilation/heating transformation, metal processing equipment, etc., can solve the problem of accelerating the aging cycle of electronic components in the furnace, improving the Q value of electromagnetic coil disks, and accelerating the insulation of enameled wires The problem of layer aging period and other issues is achieved, and the effect of ventilation and heat dissipation is remarkable, the manufacturing process is simple, and the inter-turn spacing is consistent.

Inactive Publication Date: 2006-11-08
苏润本
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing electromagnetic coil disks are made of multi-strand enameled wires wound on plastic trays. Since the wires used are expensive enameled copper wires, the Q value of the electromagnetic coil disk cannot be increased under cost control, resulting in its Great increase in power consumption
In terms of structure, due to the use of multi-strand enameled wires closely arranged and wound, there is basically no gap between the turns, and a large amount of heat generated by power consumption cannot be discharged out of the furnace immediately, so that the enameled wire insulation layer works in a high temperature environment for a long time, accelerating the enameled wire insulation layer. Aging period, and cause inter-turn short circuit, due to the large amount of heat generated by the coil disk, the temperature in the furnace is high, which further accelerates the aging cycle of electronic components in the furnace

Method used

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  • Screw electromagnetic coil disk and its producing method
  • Screw electromagnetic coil disk and its producing method
  • Screw electromagnetic coil disk and its producing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see Figure 5 As shown, a spiral electromagnetic coil disk 4-2 of the present invention is planar, and its wire material is aluminum alloy, and the wire cross section is rectangular. The range is between 0.3-0.6 mm, which is selected according to the size of the coil disk. In this embodiment, the inter-turn spacing 4-4 ​​is selected as 0.5 mm. For a single-layer coil disk, the thickness of the rectangular wire is generally 1.5-2.5mm, and the width is determined according to the power, outer diameter, number of turns and other parameters of the coil disk.

[0029] see Figure 6 As shown, the above-mentioned spiral electromagnetic coil disk 4-2 is installed and fixed on the plastic wire disk support 7, and its two ports are riveted with the aluminum terminal 4-6 plated with silver on the surface to become an electromagnetic heating coil disk for the induction cooker.

Embodiment 2

[0031] see Figure 1-Figure 6 Shown, the manufacturing method of a kind of spiral electromagnetic coil disk of the present invention is like this:

[0032] (1) Using a punching machine to punch out a circular green sheet 4 with a thickness of 1.5 mm according to a predetermined diameter.

[0033] (2) The movable mold 1 and the lower mold 5 are installed on the press, and the corresponding contact surfaces of the movable mold 1 and the lower mold 5 are provided with matching spiral blades 1-1 and 5-1, and the circular aluminum The blank 4 is placed between the blank holder 3 and the lower die 5, and the center of the bottom of the lower die 5 is equipped with an ejector rod 6. When the press is working, the movable mold 1, the elastic glue 2, and the blank holder 3 move downward. The blankholder 4-1 produces blankholder force, and when the movable mold 1 continues to descend, the aluminum billet 4 is stretched into a flat-bottomed concave cone disc by the movable mold 1 and t...

Embodiment 3

[0039] In order to improve the conductivity of the coil disc, aluminum sheets with a thickness of 0.5-0.8mm can be used to make thin flat-shaped spiral coil discs according to the method in Example 2, and the insulating paint is evenly sprayed on the bonding surface of each thin coil disc by spraying. Then, according to the stacking thickness requirements, stack 2-4 thin flat-shaped spiral coil disks and dry them under pressure. Finally, the electromagnetic heating coil disk of the aluminum rectangular wire cross-section is made by the method of example 2 for the electromagnetic oven.

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Abstract

The present invention discloses spiral magnetic magnet coil disk and manufacturing method. Said spiral magnetic magnet coil disk adopts rectangular tool blank conduct wire material, having plane shape and uniform interturn spacing. Flat plate spiral coil disk production process includes stretching, shearing and shaping aluminum alloy sheet material through press and mould to form wire square cross section spiral coil disk blank, then through stripping, flattening, cutting off hold-down ring and pan bottom, shaping, to make flat plate shape spiral coil disk installed on plastic wire disk bracket, finally riveting aluminum terminal, becoming electromagnetic oven used flat plate shape spiral electromagnetic heating coil disk. The present invention is special suitable for adopting aluminum alloy material made electromagnetic oven used heating coil disk.

Description

technical field [0001] The invention relates to the technical field of electromagnetic cooker components, in particular to a spiral electromagnetic coil disk and a manufacturing method thereof. Background technique [0002] The electromagnetic coil disk is an important power output element in the induction cooker. It transmits a pulse current with a frequency of 20KHz and a current of about 20A to the electromagnetic coil disk of the power output element from the IGBT power tube, so that the bottom of the iron pan set above the coil disk generates a strong Vortex and generate heat to achieve the purpose of heating food. [0003] Existing electromagnetic coil disks are made of multi-strand enameled wires wound on plastic trays. Since the wires used are expensive enameled copper wires, the Q value of the electromagnetic coil disk cannot be increased under cost control, resulting in its Power consumption increases substantially. In terms of structure, due to the use of multi-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B6/36B21D53/00H05K7/20
Inventor 苏润本
Owner 苏润本
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