CN200980570Y

CN200980570Y - Novel induction heating electric cooker

Info

Publication number: CN200980570Y
Application number: CN 200620140924
Authority: CN
Inventors: 蔡才德; 杨海龙
Original assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Current assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Priority date: 2006-12-08
Filing date: 2006-12-08
Publication date: 2007-11-28
Anticipated expiration: 2016-12-08

Abstract

A novel eddy-current heating electric cooker belongs to the kitchen electromagnetic heating technology field, comprising a cooker body (2), an inner cooker (1), a heat preservation ring (3), a coil rack (5), and a inductance coil (7), wherein the inner cooker (1) is arranged inside the coil rack (5), and the induction coil (7) is connected with the electric cooker controlling circuit. The utility model is characterized in that the heat preservation ring (3) is provided with heat preservation wires (4) which are connected the heat preservation controlling circuit, the inductance coil (7) which has the shape of the bottom of the inner cooker (1) is horizontal plane in the center and is provided around with the inductance coil (7) which extends from the center outwards and which is convex cambered surface, and the inductance coil (7) is reeled spirally on outer bottom (B) and the outer cambered surface (A) of the coil rack (5). The utility model has the advantages that the engagement of the spiral inductance coil with the convex cambered surface of the cooker bottom enlarges the heating area and makes the heating efficiency improved a lot, a clearance is left between the wires makes the heat dissipating effect excellent, the production cost is low, the operation is safe, reliable and steady, and a large heating area is achieved.

Description

A kind of novel eddy-current heating electric cooker

Technical field

The utility model belongs to electromagnetic heating technique for kitchen use field, is specifically related to electromagnetic induction heating electric rice cooker.

Background technology

At present, electromagnetic induction heating electric rice cooker in the prior art, arrange heating plate (coil holder) and interior pot mostly in the inside of electric cooker shell, induction coil be arranged on bobbin the bottom appearance and, the heating plate upper surface is a tabular, excitation induction coil in the heating plate makes tabular, utilizing various chemical colloids that the excitation induction coil is bonded in again has on the flat bobbin, after behind the overbaking attached on the coil holder, as substituting heating formula heating plate with dull and stereotyped electromagnetism heating plate and solenoid among the Chinese utility model patent CN2601599Y " a kind of electromagnetic rice cooker " (day for announcing is on February 4th, 2004).Chinese invention patent CN1301516A " electromagnetic induction heating electric rice cooker " (open day is July 4 calendar year 2001) cancels the heat-generating disc of traditional electric cooker equally, replaces electromagnetic coil, in the interlayer in being installed between pot bottom and the stay-warm case.

When electromagnetic rice cooker is worked, pot heating in the magnetic field that induction coil produces makes, the food in the interior pot is boiled the shortcoming of above-mentioned its existence of electromagnetic rice cooker:

1, the bottom local pyrexia of pot in the alternating magnetic field that produces of induction coil only makes, the food inequality of being heated in the pot in making;

2, flat coiling makes between the line thigh ventilation effect bad, and heat can not in time dissipate, and the life-span of coil is had a greatly reduced quality;

3, winding mode is intensive, and material cost increases;

4, the structure heating surface (area) (HS of this kind coil holder is little, and the effective area of utensil heating is affected;

5, closely twine between some strand, very close to each other between the coil, increased the probability of short circuit phenomenon between the coil, very easily cause potential safety hazards such as electromagnetic heating device burning machine.

Summary of the invention

For overcoming the prior art not smooth defective of ventilating between inhomogeneous, line thigh of being heated, provide a kind of radiating effect obviously, low cost of manufacture, work safety, reliable, stable and realize the eddy-current heating electric cooker of the big heating surface area of pan, the utility model provides the coil framework, and, make also thermally equivalent of interior pot side by the heating wire insulation.

For achieving the above object the following structure of employing of the present utility model:

A kind of novel eddy-current heating electric cooker, comprise pot body, interior pot, insulation ring, bobbin and induction coil, interior pot places in the bobbin, induction coil is connected with the electric cooker control circuit, the insulation silk is housed in the insulation ring middle part, the insulation silk connects the preservation and controlling circuit, induction coil is the spiral induction coil of pot form of pot bottom in imitative, it is horizontal plane from centre, the interior pot the bottom of a pan, the periphery position stretches out into convex globoidal by the centre, the induction coil helically coiling is in bobbin, respectively at the outer bottom place and the outer arcuate face place of bobbin.

Described spiral induction coil is made two or more sets, can be at least two groups intermittently helically coiling also can be wound in bobbin in bobbin for plane formula and at least two groups spiral combining at intermittence; Perhaps, spiral and many groups of plane formulas intermittently are wound in bobbin for combining.

Further, induction coil can be formed at least two leads in the utility model.

The lead of coiling induction coil in the utility model, during coiling, it is intermittently spiral to leave being called of big gap between the adjacent wires circle, and tight or little space are flat formula between the lead.

The utility model is with respect to the electromagnetism heating electric rice cooker of prior art, and its beneficial effect is:

1, the spiral induction coil cooperates the bottom of a pan convex globoidal external form, and the pot heating area increases in making, and the thermal efficiency improves greatly.

2, include intermittently spiral solenoid during the lead coiling, its leave the certain interval radiating effect obviously, low cost of manufacture, work safety, reliable and stable and realize the big heating surface area of pan.

Figure of description

Fig. 1 is a structural representation of the present utility model.

Fig. 2 (a)-Fig. 2 (c) is an induction coil schematic diagram of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

Embodiment 1

The utility model is shown in Fig. 1 and Fig. 2 (a)-Fig. 2 (c), comprise pot body 2, bobbin 5, pot 1 in pot body 2, being provided with, interior pot 1 places in the bobbin 5, induction coil 7 is fastened on the bottom of bobbin 5 across ferrite 6 clampings, and induction coil 7 is connected with its control circuit.

The insulation silk 4 of independent heating is equipped with at insulation ring 3 middle parts, and the insulation silk is contained on the heating circle, and circuit control separately need not main power heating can realize the food insulation, and it is convenient that bad back is changed.

Induction coil 7 is spiral induction coils, and the shape of pot 1 bottom is horizontal plane from middle position in cooperating, and the periphery position stretches out into convex globoidal by the centre.

Induction coil 7 can be made two or more sets, and intermittently helically coiling is represented in bobbin such as Fig. 2 (a) to can be at least two groups, also can be shown in Fig. 2 (b), for plane formula and at least two groups spiral combining at intermittence are wound in bobbin; Perhaps be wound in bobbin, see shown in Fig. 2 (c) for spiral and many groups of plane formulas intermittently combine.

Embodiment 2

Induction coil 7 is that two leads are formed, and in coiling induction coil 7, leaves certain interval between the adjacent wires circle, and two groups intermittently helically coiling is in bobbin, and the gap between the lead guarantees smooth and easy the getting final product of heat radiation.

All the other are with embodiment 1.

Claims

1, a kind of novel eddy-current heating electric cooker, comprise pot body (2), interior pot (1), insulation ring (3), bobbin (5) and induction coil (7), interior pot places in the bobbin, induction coil (7) is connected with the electric cooker control circuit, it is characterized in that in insulation ring (3) middle part insulation silk (4) being housed, insulation silk (4) connects the preservation and controlling circuit, induction coil (7) is pot form of pot bottom in imitative, be horizontal plane from the centre, the periphery position is stretched out into the spiral induction coil of convex globoidal by the centre, induction coil (7) helically coiling is located to locate with outer arcuate face (A) at the outer bottom (B) of bobbin (5) respectively in bobbin (5).

2, novel eddy-current heating electric cooker according to claim 1, it is characterized in that described induction coil at least two groups intermittently the spiral shell formula curl up and be formed on bobbin (5).

3, novel eddy-current heating electric cooker according to claim 1 is characterized in that described induction coil is that plane formula and at least two groups spiral curling up at intermittence are formed on bobbin (5).

4, novel eddy-current heating electric cooker according to claim 1 is characterized in that described induction coil is that intermittently spiral and many groups of plane formulas are wound in bobbin (5).

5, according to the described novel eddy-current heating electric cooker of one of claim 1-4, its characteristic is that induction coil forms at least two leads.