CN2160078Y

CN2160078Y - Power saving power frequency induction electromagnetic stove

Info

Publication number: CN2160078Y
Application number: CN 92245977
Authority: CN
Inventors: 赵建和
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-31
Filing date: 1992-12-31
Publication date: 1994-03-30
Anticipated expiration: 2002-12-31

Abstract

The utility model relates to an energy saving power frequency induction electromagnetic stove belonging to the class of household electric appliances. The utility model is composed of a pot body, magnetizing exciters, a heat isolation stove disk and a magnetizing exciter support plate. A metal magnetism guide plate and a vortex copper plate are welded on the pot body. The magnetizing exciters are four T-shaped magnetic pole iron cores. Coils are respectively sheathed on the T-shaped magnetic pole iron cores. The coils on two T-shaped magnetic pole iron cores which are opposite are connected into one group in series. Power frequency current is led into the coils to generate an alternating magnetic field, and magnetic force lines pass through the pot body to directly heat in the pot body. The pot and the kitchen range of the utility model are separated. The energy saving power frequency induction electromagnetic stove has compact and simple structure, high heat efficiency, a few components and devices, easy maintenance and convenient use.

Description

Power saving power frequency induction electromagnetic stove

The utility model belongs to the household electrical appliance class, particularly a kind of energy-conservation line-frequency induction electromagnetic oven.

High-frequency electromagnetic oven in the present household electrical appliance cooker, a large amount of electronic devices and components have been adopted, its principle is that AC rectification is become direct current, be transformed into high frequency electric again, pass through induction coil, directly at the bottom of the induction kettle, this stove has the high frequency electric radiation leakage, disturbs radio wave, harmful, shortcomings such as power is little, proof voltage fluctuation ability.Disclosed CN90217397.9 is a kind of power frequency electromagnetic oven, its principle is to utilize transformer that the voltage step-down is low-voltage and high-current, pass through secondary coil again, produce heat in the load in the closed-loop path, this load is the pot body, links to each other with secondary coil, this structural volume is big, use inconvenience, and the reactive factor compensation, reactive loss is big.

The purpose of this utility model is to provide a kind of on-line operation under power-frequency voltage at above-mentioned deficiency, and the energy-conservation line-frequency induction electromagnetic oven that separates with body of heater of pot body.

The utility model is by the pot body, magnetizing exciter, and heat insulation stone or metal plate for standing a stove on as a precaution against fire, the solid gusset of magnetic pole, the magnetizing exciter supporting plate is formed, and is welded with metal magnetic conducting plate and eddy current copper coin on the pot body; Magnetizing exciter is 4 T type pole cores, is connected by the cross yoke, is fixed on the magnetizing exciter supporting plate by the solid gusset of magnetic pole, is with coil on the T type pole core.

The utility model can be used power current work, thermal efficiency height, radiationless leakage does not have harm, compact conformation, simple, components and parts are few, easy-maintaining, pot, kitchen range separate, and be easy to use.

Fig. 1 is a structural representation of the present utility model in the accompanying drawing;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the utility model electric control theory figure;

Fig. 4 is the utility model magnetizing exciter structural representation.

Describe in detail below in conjunction with accompanying drawing:

1 is the pot body in Fig. 1, Fig. 2, and 2 is handle, and 3 is the metal guide magnetic sheet, and 4 is the eddy current copper coin, and pot body 1 and metal guide magnetic sheet 3, eddy current copper coin 4 usefulness protective atmosphere high temperature brazing technologies are welded as a whole. Magnetizing exciter 7 is by 4 T-shaped pole core L₁、L ₂、L ₃、L ₄Form, 4 T-shaped pole core Surface Machining cambers, with the bottom of a pan arc anastomosis, 4 T-shaped pole core bottoms are connected as a single entity by the solid gusset 11 of magnetic pole with yoke 8, cross yoke 9 and are fixed on the magnetizing exciter supporting plate 12, be wound with respectively coil on the T-shaped pole core, 5 is heat insulation stone or metal plate for standing a stove on as a precaution against fire, adopts the compacting of heat-resisting silication resin and glass cloth to form, and plays sealing magnetizing exciter 7 and anti-overflow logistics and enters effect. Set bolt centered by 10,13 is location-plate, and 14 is the magnetizing exciter fixing hole, and 15 is the tight position of pole core bolt, and 16 is the pole core locating rack, 17 is the identical platform circle of pot body.

Among Fig. 3, RD is protective tube, K₁－K ₁₀Be integrated the combination rotary switch, change the size of turn(s) ratio and add electric capacity coupling capacity. L_DBe the neon indicator lamp. R₁Be L_DThe current limliting divider resistance, R₂、R ₃、R ₄Be capacitor discharge electricity group, C₁、C ₂、C ₃Be phase-shift capacitor, L₁、L ₂Be inductive excitation pole, L₃、L ₄Be the capacitive excitation pole.

Among Fig. 4, L ₁, L ₂, L ₃, L ₄Be 4 T type pole cores, be wound with coil on it, the series connection of coil on two relative pole cores is one group, wherein is serially connected with capacitor in one group, makes two groups of electric current I like this ₁With I ₂Have 90 ° of phases potential differences, and make I ₁=I ₂, the magnetic force phase difference in this moment two magnetic circuits is 90 ° also, and the alternating component of the electromagnetic force that they produced is just cancelled each other, and has avoided vibration that alternation produced and noise, and also can make power factor is 1, is pure resistor load.

Embodiment:

Ball-type pot body 1 of the present utility model is to adopt three layers of different in nature metal solder to be composited.Earlier metal magnetic conducting plate 3 and eddy current copper coin 4 are struck out conform to ball-type the bottom of a pan arc identical after, put into cored solder and scaling powder at interlayer, put into pressing mold; put into closed container then, feed protective atmosphere, nitrogen 80%; hydrogen 20%; when treating in the stove that temperature is raised to a little higher than brazing temperature, heating tank hung in the electric furnace heat, after uniform temperature; insulation for a moment; outside the taking-up stove, air-cooled to room temperature, turn-off protection atmosphere.Take out pot body processed finished products, spray the coloured thermal-resistant fluoroplastics outward.

Magnetizing exciter 7 and yoke 8 usefulness mould punchings form, and coil 6 usefulness temperature resisting paint envelope curves are inserted in four T type pole core L with anchor clamps respectively with the shaping clamping on the fiberglass skeleton ₁, L ₂, L ₃, L ₄On, connect by cross yoke 9, be fixed on the magnetizing exciter holder utmost point 12 by the solid gusset 11 of magnetic pole, make the unlikely space that occurs between it by fastening bolt 15 again, load onto the heat insulation stove face at last.

Circuit controling switch is the W5 universal seclector, by string and each coil and tap, changes turn ratio and different capacity and selects for use the electric capacity of different capabilities to realize power control and judge.

Claims

1, a kind of line-frequency induction electromagnetic oven, by pot body 1, magnetizing exciter 7, heat insulation stone or metal plate for standing a stove on as a precaution against fire 5, the solid gusset 11 of magnetic pole, magnetizing exciter supporting plate 12 is formed, and it is characterized in that:

Be welded with metal magnetic conducting plate 3, eddy current copper coin 4 on a, the pot body 1;

B, magnetizing exciter 7 are 4 T type pole core L ₁, L ₂, L ₃, L ₄, connect by cross yoke 9, be fixed on the magnetizing exciter supporting plate 12 by the solid gusset 11 of magnetic pole, be with coil 6 respectively on the T type pole core.