CN201191019Y

CN201191019Y - Electromagnetic stove

Info

Publication number: CN201191019Y
Application number: CNU2008200442543U
Authority: CN
Inventors: 冯健满; 夏云彪
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-02-20
Filing date: 2008-02-20
Publication date: 2009-02-04
Anticipated expiration: 2018-02-20

Abstract

The utility model discloses an induction cooker, comprising a shell formed by an upper cover and a lower cover, wherein the upper cover is provided with a heat resistant microcrystal plate and a control panel, a heating coil made by coiling an enameled wire, a control main board and a cooling fan are provided under the heat resistant microcrystal plate in the shell, the heating coil and the control panel are electrically connected with the control main board. The induction cooker is characterized in that the heating coil is coiled into a plurality of concentric annular units having a plurality of beams coiled tightly, while the beams are distanced of 10mm at least, a bearing base is provided in the shell for fixing the heating coil, the bearing base is provided with a plurality of arc radiation windows which are arranged annularly, and a plurality of positioning strips are radial distributed in the radiation windows to limit the spaces between each two adjacent annular units. The induction cooker has the advantages of good heating effect and heat radiation effect.

Description

A kind of electromagnetic oven

[technical field]

The utility model relates to a kind of electromagnetic oven.

[background technology]

Working principle of induction cooker is to produce alternating magnetic field by solenoid, when chalybeate pan is positioned over boiler face, pan promptly cuts the alternation magnetic line of force and partly produces eddy current in the pan bottom metal, eddy current makes the random motion of pan iron molecule high speed, molecule runs foul of each other, rubs and produces heat energy, and it has advantages such as quick heating, thermal efficiency height, no pernicious gas.The solenoid of existing electromagnetic oven mostly is closely winding of whole dish on an air-locked flat board, be not stay the gap between coil and the coil, as wrapping up in transparent adhesive tape, result of ventilating heat dissipation is undesirable, cause easily because of the too high fault that produces of temperature in the furnace shell, the probability that is short-circuited between the coil is higher simultaneously, directly causes fault even jeopardizes user security; Simultaneously, the magnetic field that the solenoid by this structure coiling produces is single, and it is bad to add thermal effect.

[utility model content]

The utility model has overcome the deficiency of above-mentioned technology, provides a kind of simple in structure, good heat dissipation effect, the electromagnetic oven that heating efficiency is high.

For achieving the above object, the utility model has adopted following technical proposal:

A kind of electromagnetic oven, comprise the housing of forming by loam cake and lower cover, on cover heat-resisting crystallite plate and control panel be installed, heat-resisting crystallite plate below is provided with heater coil, control mainboard, the radiator fan that enamel-covered wire turns in the housing, heater coil, control panel all with control mainboard electrical coupling, it is characterized in that described heater coil turn to some strands of tight winding with the some thighs that closely twine between leave a plurality of concentric annular unit of gap greater than 10mm; Also be provided with supporting base in the housing, described heater coil is fixed on the supporting base; Described supporting base is provided with a plurality of fan-shaped thermal window of circular permutation, and a plurality of positioning strips radially distribute in a plurality of thermal windows to limit the gap between adjacent two concentric annular unit.

A kind of electromagnetic oven from the above mentioned is characterized in that described positioning strip is provided with a plurality of dividing plates, places the heater coil of an annular unit between per two adjacent dividing plates, and described heater coil is positioned on the positioning strip.

A kind of electromagnetic oven from the above mentioned is characterized in that described heater coil is arranged on the bearing-surface of supporting base, and bearing-surface is a pot shape arc surface.

A kind of electromagnetic oven from the above mentioned is characterized in that described heater coil is arranged on the bearing-surface of supporting base, and bearing-surface is the plane.

Between a plurality of from the above mentioned concentric annular unit for being connected in series.

A kind of electromagnetic oven from the above mentioned is characterized in that between described a plurality of concentric annular unit for being connected in parallel.

The beneficial effects of the utility model are: supporting base is provided with thermal window, again by radiator fan, during electromagnetic oven work, can effectively reduce the temperature in the furnace shell, ensures the normal operation of machine, improves its service life; Heater coil turns between the some strand of tight winding and the some thighs that closely twine and leaves a plurality of concentric annular unit of gap greater than 10mm, this structure can make each annular unit produce independently heating region, a plurality of independent heating regions disperse, pan is evenly heated, the heating efficiency height, because of leaving enough gaps between the annular unit, ensure good performance of heat dissipation simultaneously, guaranteed not occur between the coil short trouble.

[description of drawings]

Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:

Fig. 1 is a schematic perspective view of the present utility model;

Fig. 2 is a decomposing schematic representation of the present utility model;

Fig. 3 is installed in schematic diagram on the supporting base for the utility model heater coil;

Fig. 4 is the utility model supporting base longitudinal profile schematic diagram;

Fig. 5 is the schematic diagram of all annular unit parallel connections of the utility model.

[specific embodiment]

As shown in Figures 1 to 4, a kind of electromagnetic oven, comprise the housing of forming by loam cake 1 and lower cover 2, heat-resisting crystallite plate 3 and control panel 4 are installed on the loam cake 1, heat-resisting crystallite plate 3 belows are provided with supporting base 9, control mainboard 6, radiator fan 7, the heater coil 5 that supporting base 9 upper supports have enamel-covered wire to turn in the housing; Heater coil 5, control panel 4 all with control mainboard 6 electrical couplings.

Heater coil 5 turns between the some strand of tight winding and the some thighs that closely twine and leaves a plurality of concentric annular unit 8 of gap greater than 10mm, and is fixed on the supporting base 9; Supporting base 9 is provided with a plurality of fan-shaped thermal window 901 of circular permutation, and a plurality of positioning strips 902 radially distribute in a plurality of thermal windows 901.

Positioning strip 902 is provided with a plurality of dividing plates 9021, places the heater coil 5 of an annular unit 8 between per two adjacent dividing plates 9021, and dividing plate 9021 is positioned at heater coil 5 on the positioning strip 902, to limit the gap between adjacent two concentric annular unit 8

Heater coil 5 is arranged on the bearing-surface 903 of supporting base 9, and bearing-surface 903 is a pot shape.In the utility model, bearing-surface 903 can certainly be arranged to the plane.

In the utility model, between a plurality of concentric annular unit 8 for being connected in series; Certainly, also can be between a plurality of concentric annular unit 8 for being connected in parallel, i.e. the coil two ends parallel connection of each annular unit 8, as shown in Figure 5.

Because during this use was novel, supporting base 9 was provided with thermal window 901, again by radiator fan 7, during electromagnetic oven work, can effectively reduce the temperature in the furnace shell, ensure the normal operation of machine, improve its service life; Heater coil 5 turns between the some strand of tight winding and the some thighs that closely twine and leaves a plurality of concentric annular unit of gap greater than 10mm, this structure can make each annular unit 8 produce independently heating region, a plurality of independent heating regions disperse, pan is evenly heated, the heating efficiency height, leave enough gaps between the annular unit 8 simultaneously, ensured not occur short trouble between the coil.

Claims

1, a kind of electromagnetic oven, comprise the housing of forming by loam cake (1) and lower cover (2), heat-resisting crystallite plate (3) and control panel (4) are installed on the loam cake (1), heat-resisting crystallite plate (3) below is provided with heater coil (5), control mainboard (6), the radiator fan (7) that enamel-covered wire turns in the housing, heater coil (5), control panel (4) all with control mainboard (6) electrical coupling, it is characterized in that described heater coil (5) turn to some strands of tight winding with the some thighs that closely twine between leave a plurality of concentric annular unit (8) of gap greater than 10mm; Also be provided with supporting base (9) in the housing, described heater coil (5) is fixed on the supporting base (9); Described supporting base (9) is provided with a plurality of fan-shaped thermal window (901) of circular permutation, and a plurality of positioning strips (902) radially distribute in a plurality of thermal windows (901) to limit the gap between adjacent two concentric annular unit (8).

2, a kind of electromagnetic oven according to claim 1, it is characterized in that described positioning strip (902) is provided with a plurality of dividing plates (9021), place the heater coil (5) of an annular unit (8) between per two adjacent dividing plates (9021), described heater coil (5) is positioned on the positioning strip (902).

3, a kind of electromagnetic oven according to claim 2 is characterized in that described heater coil (5) is arranged on the bearing-surface (903) of supporting base (9), and bearing-surface (903) is a pot shape arc surface.

4, a kind of electromagnetic oven according to claim 2 is characterized in that described heater coil (5) is arranged on the bearing-surface (903) of supporting base (9), and bearing-surface (903) is the plane.

5, a kind of electromagnetic oven according to claim 1 is characterized in that between described a plurality of concentric annular unit (8) for being connected in series.

6, a kind of electromagnetic oven according to claim 1 is characterized in that between described a plurality of concentric annular unit (8) for being connected in parallel.