CN203554720U

CN203554720U - Coil panel for commercial induction cooker

Info

Publication number: CN203554720U
Application number: CN201320719803.3U
Authority: CN
Inventors: 杨勇
Original assignee: XIAMEN DONGCHU INTELLIGENT TECHNOLOGY Co Ltd
Current assignee: Jinjiang Haodong kitchen Intelligent Technology Co Ltd
Priority date: 2013-11-15
Filing date: 2013-11-15
Publication date: 2014-04-16
Anticipated expiration: 2023-11-15

Abstract

The utility model relates to the technical field of an induction cooker, particularly to a coil panel for a commercial induction cooker. The coil panel comprises a coil support and an electromagnetic coil layer wound on the coil support. The electromagnetic coil layer is divided into a first region, a second region, a third region, ...,an N-1th region, and an Nth region by winding of enamelled wires from inside to outside; the first region is formed by clockwise or anticlockwise winding, the second region is formed by anticlockwise or clockwise winding, the third region is formed by clockwise or anticlockwise winding, and so on; and the winding direction of the Nth region is opposite to that of the N-1th region. According to the scheme, the electromagnetic coil layer is divided into a plurality of coil regions based on winding with alternant clockwise and anticlockwise directions. When the coil panel is electrified, the magnetic fields generated around the coil panel are overlapped in an inter-partition mode; and each magnetic field at each different magnetic field becomes the independent magnetic field region. When the heated cookware is affected, a plurality of independent heated regions are formed at the cookware, so that heating of all portions of the cookware becomes uniform.

Description

A kind of commercial electromagnetic oven coilpanel

Technical field

The utility model relates to electromagentic furnace technology field, is specifically related to a kind of commercial electromagnetic oven coilpanel.

Background technology

Electromagnetic oven applies to modern kitchen widely, be used for cooking the purposes such as heating, commercial electromagnet cooking stove is subject to more and more consumers' favor with advantages such as its convenience, energy-saving and environmental protection, due to the coil panel of high-power commercial electromagnetic stove and the volume of pan and area all more much bigger than Household induction cooker, so, in actual use, be difficult to accomplish the overall thermally equivalent of electromagnetic oven cooker.The winding method of the coil panel of the commercial induction cooker on market is all similar now, and the fine or not situation of the pan heating of commercial induction cooker is also substantially similar.The coil panel method for winding of making a general survey of all commercial induction cookers on present market is to be all by same direction coiling from the beginning to the end, the benefit of this winding method is that the inductance value of coil panel is easily controlled, easily accomplish very high inductance value, but shortcoming is in the electromagnetic oven course of work, the magnetic field of drum is all that same direction is in stack forever, the heating of the pan of the commercial induction cooker on market is substantially all the heating interval that only has a ring-type now, and other position heating situations of pan are undesirable.

Shown in figure 1, we can see Distribution of Magnetic Field picture by normal coil dish, the magnetic field of normal coil dish only has a stack in direction, the magnetic field superposition magnetic flux density of this mode can reach peak value in the middle position in magnetic field superposition region, that is to say that in the heated intensity of pan in the centre position of coil panel radius be maximum, so the pan of now all commercial induction cookers is all to reach maximum in the centre position of coil panel radius caloric value.

Utility model content

In order to solve the problems of the technologies described above, the utility model provides a kind of commercial electromagnetic oven coilpanel can by stages pan being heated.

In order to achieve the above object, the technical scheme that the utility model adopts is, a kind of commercial electromagnetic oven coilpanel, comprise coil brace and be around in the electromagnetic wire ring layer on this coil brace, described electromagnetic wire ring layer by enamelled wire from inside to outside coiling form first area, second area, the 3rd region ... N-1 region, n-quadrant, this first area is (counterclockwise) coiling clockwise, second area is (clockwise) coiling counterclockwise, the 3rd region is (counterclockwise) coiling clockwise ..., the coiling direction of n-quadrant is contrary with N-1 region.

Further, described 3≤N≤7, and N is integer, the value of concrete N can be according to the size reasonable adjustment of pan.

Further, between the adjacent windings in adjacent two regions, largest interval is d1, and between the adjacent windings between the same area, largest interval is d2, d1 >=d2, and described d1 scope is 8-10mm, d2 scope is 4-8mm.Design like this, is the gap that place for each both forward and reverse directions is replaced suitably separates a little, and then using the magnetic field in each different region as a field region independently.

Further, described first area is border circular areas, described second area, the 3rd region ... N-1 region, n-quadrant are circle ring area, this border circular areas be radius R, the external diameter of this circle ring area and the difference of internal diameter are Ra-Rb, in order to make sectional area more even, generally get R ≈ Ra-Rb.

Further, described first area is border circular areas, described second area, the 3rd region ... N-1 region, n-quadrant are circle ring area, this border circular areas be radius R, the external diameter of this circle ring area and the difference of internal diameter are Ra-Rb, and R=1.5(Ra-Rb).More approaching with value (Ra-Rb) as R, the situation of being heated of each described sectional area is just more even, value (Ra-Rb) than the value of R is large must be more, be more conducive to the heating of pan central point.

The utility model is by adopting technique scheme, and compared with prior art, tool has the following advantages:

The utility model is separated into some coil region along replacing coiling in the other direction by electromagnetic wire ring layer, Ye Shi by stages, the magnetic field stack producing around coil panel after coil panel is switched on, and the place that replaces of each both forward and reverse directions suitably separates the gap of a little, and then the magnetic field in each different region becomes an independently field region.When these are when independently field region acts on alone on heated pan, on pan, also can form so the heated interval of multiple independence, and then can make the heating of pan each several part more even.

Accompanying drawing explanation

Fig. 1 is the Distribution of Magnetic Field schematic diagram of coil panel of the prior art;

Fig. 2 is the coil panel schematic diagram of embodiment of the present utility model;

Fig. 3 is the coil panel Distribution of Magnetic Field schematic diagram of embodiment of the present utility model.

Embodiment

Now with embodiment, the utility model is further illustrated by reference to the accompanying drawings.

As a specific embodiment, as shown in Figure 2, a kind of commercial electromagnetic oven coilpanel, comprise coil brace and be around in the electromagnetic wire ring layer 1 on this coil brace, in the present embodiment, N=3, therefore described electromagnetic wire ring layer 1 by enamelled wire 2 from inside to outside coiling form first area 11, second area 12 and the 3rd region 13, this first area 11 is counterclockwise coiling, second area 12 is clockwise coiling, the 3rd region 13 is counterclockwise coiling, certainly, in actual use, can also more region be set according to pan size and heating position, for example first area, second area and the 3rd region N-1 region, n-quadrant, and the coiling direction of n-quadrant is contrary with N-1 region, 3≤N≤7, and N is integer.

In the present embodiment, between adjacent windings between first area 11 and second area 12, second area 12 and the 3rd region 13, largest interval is d1, between the adjacent windings between separately of first area 11, second area 12, the 3rd region 13, largest interval is d2, and described d1 is 10mm, and d2 is 8mm.In actual use, described d1 scope is 8-10mm, d2 scope is 4-8mm, therefore d1 and d2 other values in can employing scope, and also need to meet d1 >=d2, design like this, is the gap that place for each both forward and reverse directions is replaced suitably separates a little, and then using the magnetic field in each different region as a field region independently.

In the present embodiment, described first area 11 is border circular areas, and described second area 12, the 3rd region 13 are circle ring area, this border circular areas be radius R, the external diameter of this circle ring area and the difference of internal diameter are Ra-Rb, and R ≈ Ra-Rb.This radius is designed to approximately equate with the difference of external diameter and internal diameter, is in order to make the magnetic field intensity between each region more consistent, and being heated of pan surface is comparatively even.When R ≈ Ra-Rb, the spacing in described first area 11, second area 12, the 3rd region 13 is uniformly, that is to say that the quantity that each region winds the line is as many; In electromagnetic oven work, the size of current that the same time is flow through coil panel is the same, so can think the same time, the magnetic field intensity producing on solid wire on coil panel is the same.According to the vector superposed principle of electromagnetic field, suppose that the magnetic field intensity that solid wire produces is Hn, in each formation magnetic field, region, can be regarded as the field regions that an overall intensity is kHn (k is a certain constant), the magnetic field intensity that for example forms forward on first area 11 is the field regions of kHn (k is a certain constant), 12 of second areas, forming reverse magnetic field intensity is the field regions of kHn (k is a certain constant), by that analogy.Hence one can see that, and the drum Distribution of Magnetic Field of the winding method coiling of employing R ≈ Ra-Rb is even, and pan interval is heated evenly.

Certainly, can also make R=1.5(Ra-Rb) or other multiple relations.When being designed to 1.5 times, from analysis above, as R=1.5(Ra-Rb) time, the electromagnetic field forming in second area 12, the 3rd region 13 will be than first area 11 a little less than, so the heating scope of pan entirety will be gathered in the central authorities of pot, when multiple is larger, central point heating will be more obvious, so, within the scope of certain multiple, to overcoming pan central point heating blind area, have certain effect.But it is excessive that this multiple is not suitable for designing, should be N and will get 3-8, and the area of drum is very limited, so when multiple is excessive, the quantity winding the line in second area 12, the 3rd region 13, N-1 region, n-quadrant will greatly reduce, will allow like this Distribution of Magnetic Field of drum periphery be weakening of exponential type, pan heating uniformity variation on the contrary, so be generally designed to R < 3(Ra-Rb).

Shown in figure 3, the Distribution of Magnetic Field schematic diagram of the coil panel from the present embodiment can be found out, the utility model is separated into some

coil region

11,12,13 along replacing coiling in the other direction by electromagnetic wire ring layer, Ye Shi by stages, the magnetic field stack producing around coil panel after coil panel is switched on, and the place that replaces of each both forward and reverse directions suitably separates the gap of a little, and then the magnetic field in each different region becomes an independently field region.When these are when independently field region acts on alone on heated pan, on pan, also can form so the heated interval of multiple independence, and then can make the heating of pan each several part more even.

Although specifically show and introduced the utility model in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection range of the present utility model.

Claims

1. a commercial electromagnetic oven coilpanel, it is characterized in that: comprise coil brace and be around in the electromagnetic wire ring layer on this coil brace, described electromagnetic wire ring layer by enamelled wire from inside to outside coiling form first area, second area, the 3rd region ... N-1 region, n-quadrant, this first area coiling direction is clockwise (counterclockwise), second area coiling direction is counterclockwise (clockwise), the 3rd region coiling direction is for being clockwise (counterclockwise) ..., the coiling direction of n-quadrant is contrary with N-1 region.

2. a kind of commercial electromagnetic oven coilpanel according to claim 1, is characterized in that: described 3≤N≤7, and N is integer.

3. a kind of commercial electromagnetic oven coilpanel according to claim 1, it is characterized in that: between the adjacent windings in adjacent two regions, largest interval is d1, between the adjacent windings between the same area, largest interval is d2, d1 >=d2, described d1 scope is 8-10mm, and d2 scope is 4-8mm.

4. a kind of commercial electromagnetic oven coilpanel according to claim 1, it is characterized in that: described first area is border circular areas, described second area, the 3rd region ... N-1 region, n-quadrant are circle ring area, this border circular areas be radius R, the external diameter of this circle ring area and the difference of internal diameter are Ra-Rb, and R ≈ Ra-Rb.

5. a kind of commercial electromagnetic oven coilpanel according to claim 1, it is characterized in that: described first area is border circular areas, described second area, the 3rd region ... N-1 region, n-quadrant are circle ring area, this border circular areas be radius R, the external diameter of this circle ring area and the difference of internal diameter are Ra-Rb, and R=1.5(Ra-Rb).