CN201830488U

CN201830488U - Double helical coil plate

Info

Publication number: CN201830488U
Application number: CN2010205916100U
Authority: CN
Inventors: 万宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-10-28
Filing date: 2010-10-28
Publication date: 2011-05-11
Anticipated expiration: 2020-10-28

Abstract

The utility model discloses a double helical coil plate which comprises a coil plate and a coil wound on the coil plate, wherein the coil plate takes the shape of a pan or an arc-bottom boiler, and the coil is spirally wound on the coil plate. The coil plates with two types are mainly used for heating spherical arc-bottom boilers. The coil plate takes the shape of a pan, a circular flat-bottom support is arranged on the bottom thereof, a plurality of curved branch ribs are extended from the flat-bottom support by extending radially and upwards, and the tail ends of the branch ribs are connected with each other to form a body of the coil plate. Or, the coil plate takes the shape of an arc-bottom boiler, a circular through hole is arranged on the bottom thereof, and a horizontal flange is arranged on the edge of the top part thereof. Gap between the coils is uniformly and spirally wound on the coil plate. Or, the gap between the coils is gradually-changed and spirally wound on the coil plate. The shape of the coil plate and the winding density of the coil are changed to enhance the application range of a electromagnetic oven; and simultaneously, the gap between the coils is regulated to balance the magnetic filed at the bottom of the boiler, thus guaranteeing the boiler to be heated uniformly and improving the heat efficiency of the electromagnetic oven.

Description

The double-spiral coil dish

Technical field

The utility model relates to a kind of coil panel, specifically is a kind of double-spiral coil dish.

Background technology

Coil disc of electric stove is a power output element important in the electromagnetic oven, it is the pulse current of 20KHz, the about 20A of electric current by the IGBT power tube to power output element electromagnetic coil disk frequency of delivery, make the irony pan bottom that is arranged on the coil panel top produce powerful eddy current and heating, reach the purpose of heat food.The heat efficiency of electromagnetic oven can reach 93% in theory, because traditional electromagnetic oven is subjected to cost and structure influence, its efficient has only about 80%, except the power consumption about 6% of power tube (IGBT), fan, control board, remaining loss 14% all comes from electromagnetic coil disk, therefore how to reduce the cost of electromagnetic coil disk, improves the Q value, reduces temperature rise, be to improve electromagnetic oven electric property, an important channel in the heat efficiency and useful life.

Therefore and the electromagnetic oven on the market generally is tabular, and pan is generally pan, and this electromagnetic oven general intelligence heats the bottom of pan, and the heat efficiency is lower, so begin to occur electromagnetic oven that the structure of coil disc of electric stove is transformed on the market.

A kind of Inner and outer ring-type heating coil plate was disclosed on February 16th, 2005 as Chinese patent literature CN 2679958, comprise coil bracket, ferrocart core and heater coil, ring support and outer ring support in its coil bracket is divided into, the heater coil that is arranged on inner and outer ring support and the ferrocart core also is divided into isolated interior heater coil disc and outer heater coil dish.Described inner and outer rings support and inside and outside heater coil disc at grade, or on Different Plane, or on inner concave arc surface at the bottom of the arc pot.Interior heater coil disc connects by mode in parallel or that connect with outer heater coil dish; Heater coil disc is generally the plate-like of indent.Though this structure can also heat simultaneously to the top of pan, its practical scope is narrower, and the magnetic field that this winding mode produced and inhomogeneous, causes the pan inequality of being heated easily, therefore, is necessary further improvement.

The utility model content

The purpose of this utility model aims to provide even, the safe and reliable double-spiral coil dish in magnetic field that a kind of simplicity of design, rational in infrastructure, applicability are wide, produce, to overcome weak point of the prior art.

By a kind of double-spiral coil dish of this purpose design, comprise coil panel and coiling coil thereon, its architectural feature is that coil panel is pan shape or arc bottom pan shape, coil coiled coil is thereon.

Described coil panel is the pan shape, and its bottom is provided with the circular flat bottom holder, and flat holder radioactively extends upward several crooked buttress, and the buttress end is interconnected to form the dish body of coil panel.

Described coil panel is the arc bottom pan shape, and its bottom has manhole, and its top is provided with horizontal flanges.

The gap of described coil is spirally coiled on the coil panel equably.

Be spirally coiled on the coil panel gap gradual change type of described coil.

The gap of described coil is changed to, and to the outer ring, the gap changes from small to big, more from large to small from the center of coil panel.

The gap of described coil is changed to, from the center of coil panel to its radius mid point, the gap changes from small to big, from coil panel radius mid point to its outer ring, the gap is from large to small.

Gap length between every turn coil of described coil is all unequal.

The diameter of described coil panel is 10-60 centimetre.

By adopting technique scheme, the utility model is by shape (promptly changing the distance of coil panel card and pan bottom) that changes coil panel and the coiling density that changes coil, to increase the scope of application of electromagnetic oven, simultaneously by the gap between regulating winding, the magnetic field of balance pan bottom, guarantee being heated evenly of pan, improve the heat efficiency of electromagnetic oven.It has simplicity of design, rational in infrastructure, characteristics that applicability is wide, safe and reliable simultaneously, is particularly suitable for the electromagnetic oven of different contour structures, is fit to the popularization of producer.

Description of drawings

Fig. 1 is the perspective view of the utility model one embodiment;

Fig. 2 is the another perspective view of the utility model one embodiment;

Fig. 3 is the sectional structure schematic diagram of Fig. 1.

Fig. 4 is the front view of the another embodiment of the utility model;

Fig. 5 is the perspective view of Fig. 4;

Fig. 6 is the sectional structure schematic diagram of Fig. 4.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described.

First embodiment

Referring to Fig. 1-Fig. 3, this double-spiral coil dish comprises coil panel 2, with coiling coil 1 thereon, its coil panel 2 is the pan shape, and its bottom is provided with the circular flat bottom holder, flat holder radioactively extends upward several crooked buttress, and the buttress end is interconnected to form the dish body of coil panel 2.Be spirally coiled on the coil panel 2, its gap is changed to the gap gradual change type of coil 1, from the center of coil panel 2 to its radius mid point, the gap changes from small to big, from coil panel 2 radius mid points to its outer ring, the gap is from large to small; And the gap length between every turn coil of coil 1 is all unequal.In addition, cambered surface (shown in Fig. 3 dotted line) distance is changed from small to big, more from large to small at the bottom of coil panel card and the pan.

The electromagnetic oven of making of this coil panel 2, the general culinary art that is fit to pan or arc bottom pan is used, the gap of its coil 1 is through accurately calculating and adjusting, guarantee that magnetic field, pan bottom is even, thereby it is heated evenly, this design can effectively improve the heat efficiency of electromagnetic oven, energy savings, satisfy the low-carbon (LC) life of advocating at present, and because the gap length between every turn coil of coil 1 is all unequal, thereby it is suitable for making larger-size coil panel 2, makes in its kitchen tools that are suitable for food and beverage enterprise, is that enterprise saves more costs.

Second embodiment

Referring to Fig. 4-Fig. 6, this double-spiral coil dish, coil panel 3 is the arc bottom pan shape, and its bottom has manhole, and its top is provided with horizontal flanges.Be spirally coiled on the coil panel 3, its gap is changed to the gap gradual change type of coil 1, from the center of coil panel 3 to its radius mid point, the gap changes from small to big, from coil panel 3 radius mid points to its outer ring, the gap is from large to small; And the gap length between every turn coil of coil 1 is all unequal.Wherein, the diameter of coil panel 2 is 50 centimetres.

Because this coil panel 3 is the arc bottom pan shape, thereby the culinary art that is particularly suitable for arc bottom pan is used, can also increase simultaneously the scope of application of electromagnetic oven, satisfy the different demands of different people or food and beverage enterprise greatly, and because the gap length between every turn coil of coil 1 is all unequal, thereby it is suitable for making larger-size coil panel 2, makes in its kitchen tools that are suitable for food and beverage enterprise, is that enterprise saves more costs.

Claims

1. a double-spiral coil dish comprises coil panel and coiling coil (1) thereon, it is characterized in that coil panel is pan shape or arc bottom pan shape, and coil (1) coiled coil thereon.

2. double-spiral coil dish according to claim 1, it is characterized in that described coil panel (2) is the pan shape, its bottom is provided with the circular flat bottom holder, and flat holder radioactively extends upward several crooked buttress, and the buttress end is interconnected to form the dish body of coil panel.

3. double-spiral coil dish according to claim 1 is characterized in that described coil panel (3) is the arc bottom pan shape, and its bottom has manhole, and its top is provided with horizontal flanges.

4. according to claim 2 or 3 described double-spiral coil dishes, it is characterized in that the gap of described coil (1) is spirally coiled on coil panel (2), (3) equably.

5. according to claim 2 or 3 described double-spiral coil dishes, it is characterized in that described coil (1) the gap gradual change type be spirally coiled on coil panel (2), (3).

6. double-spiral coil dish according to claim 5 is characterized in that the gap of described coil (1) is changed to, and to the outer ring, the gap changes from small to big, more from large to small from the center of coil panel (2), (3).

7. double-spiral coil dish according to claim 6, the gap that it is characterized in that described coil (1) is changed to, from the center of coil panel (2), (3) to its radius mid point, the gap changes from small to big, from coil panel (2), (3) radius mid point to its outer ring, the gap is from large to small.

8. double-spiral coil dish according to claim 7 is characterized in that the gap length between every turn coil of described coil (1) is all unequal.

9. double-spiral coil dish according to claim 1, the diameter that it is characterized in that described coil panel (2), (3) is 10-60 centimetre.