CN203823834U - Induction cooker with multi-layered coil disc - Google Patents
Induction cooker with multi-layered coil disc Download PDFInfo
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- CN203823834U CN203823834U CN201420096321.1U CN201420096321U CN203823834U CN 203823834 U CN203823834 U CN 203823834U CN 201420096321 U CN201420096321 U CN 201420096321U CN 203823834 U CN203823834 U CN 203823834U
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- coil
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- electromagnetic oven
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- 230000006698 induction Effects 0.000 title abstract 6
- 238000004804 winding Methods 0.000 claims description 50
- 239000010410 layer Substances 0.000 claims description 33
- 239000002356 single layer Substances 0.000 claims description 5
- 238000010411 cooking Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses an induction cooker with a multi-layered coil disc, relating to the technical field of kitchen cooking and solving the technical problem that the IGBT (insulated gate bipolar transistor) back pressure of an existing induction cooker with a multi-layered coil disc is relatively high. The induction cooker with the multi-layered coil disc comprises a base and a panel which form a cooker chamber, wherein an electromagnetic coil disc is arranged in the cooker chamber and comprises a coil disc rack and the multi-layered coil disc; the multi-layered coil disc is arranged on the coil disc rack and comprises a top coil disc and a bottom coil disc; the top coil disc is a single-layered coil and is arranged to be close to the panel; the bottom coil disc comprises at least one layer of coil; the circle number of any layer of the coil of the bottom coil disc is smaller than that of the coil of the top coil disc. The embodiment of the utility model is mainly suitable for the induction cooker, and particularly for the induction cooker with a relatively high back pressure requirement.
Description
Technical field
The utility model relates to culinary cuisine technical field, relates in particular to a kind of electromagnetic oven with lattice coil dish.
Background technology
Electromagnetic oven is the product of modern kitchen revolution, and it is without naked light or conduction-type heats and allow heat directly in the bottom of a pan, produce.Existing electromagnetic oven generally comprises panel assembly, base and is loaded on the electromagnetic wire coil on base, and by IGBT, controls electromagnetic wire coil the pan being placed on panel assembly is heated.Electromagnetic wire coil comprises bobbin loader and be loaded on the coil panel on bobbin loader, and in order to improve the efficiency of heating surface, on electromagnetic wire coil, general coiling lattice coil dish, is heated and can improve the efficiency of heating surface pan by lattice coil dish.
Realizing and using in the process of above-mentioned electromagnetic oven, inventor finds that in prior art, at least there are the following problems: the arrangement mode of lattice coil dish is generally that the top winding dish diameter nearer apart from pan on panel is less, and concrete pan bottom coil dish diameter far away is larger, or the two-layer or two-layer above coil panel at top is all that diameter is larger, the inductance that namely in existing scheme, distance pan coil panel far away produces is more.Due to the distance of pan and drum, to get over the inductance decay that senior general causes electromagnetic wire coil less, if be arranged on the position far away apart from pan by producing the more coil panel of inductance, make inductance decay relatively little, cause total inductance amount to increase, cause the back-pressure of IGBT larger, cause IGBT easily to damage, antisurge ability reduces.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art and a kind of electromagnetic oven with lattice coil dish is provided, and can reduce the back-pressure of IGBT, IGBT is difficult for damaged.
For achieving the above object, the utility model adopts following technical scheme:
A kind of electromagnetic oven with lattice coil dish, comprise the base and the panel that form furnace chamber, in furnace chamber, be provided with electromagnetic wire coil, electromagnetic wire coil comprises bobbin loader and is loaded on the lattice coil dish on bobbin loader, lattice coil dish comprises top winding dish and bottom coil dish, top winding dish is single layer coil and presses close to panel setting, and bottom coil dish comprises at least one layer line circle, and in bottom coil dish, the wire circle of one deck is less than the wire circle of top winding dish arbitrarily.
Described bottom coil dish comprises at least two-layer coil, and the number of turns of coil reduces from upper strata to lower floor.
Every layer line circle of described lattice coil dish is back taper coiling from top to bottom from upper.
The internal diameter of every layer line circle of described lattice coil dish is identical.
In described lattice coil dish, every layer line circle is than few at least two circles of last layer coil.
Described bottom coil dish comprises at least two-layer coil, and the number of turns of the every layer line circle of bottom coil dish is identical.
In described bottom coil dish, the coil of one deck encloses than the coil of top winding dish few at least two arbitrarily.
Described electromagnetic wire coil is provided with magnetic stripe, and magnetic stripe comprises the short magnetic stripe that is crossed on the long magnetic stripe at top winding dish internal-and external diameter two ends and is crossed on bottom coil dish internal-and external diameter two ends.
The winding length of described top winding dish accounts for the winding length 40% to 70% of lattice coil dish.
The inductance value that described top winding dish produces accounts for the inductance value 40% to 70% of lattice coil dish.
A kind of electromagnetic oven with lattice coil dish that the utility model provides, lattice coil dish has top winding dish and bottom coil dish, wherein top winding dish adopts single layer coil, and in bottom coil dish, the wire circle of any one deck is less than the wire circle of top winding dish, make the top winding dish nearer apart from panel there is the more number of turns, improve the inductance value producing on top winding dish, realize the inductance value producing on top winding dish and can account for the larger ratio of whole coil panel inductance value.Because top winding dish is nearer apart from pan; make the decay of inductance value also relatively many; so when the scheme that adopts the utility model embodiment to provide is cooked; inductance value decay is also more; can reduce total inductance amount, thereby reduce the back-pressure of IGBT, can play the effect of protection IGBT; even if produce certain surge in power supply, the coil panel that the utility model embodiment provides can have higher resistivity.
In addition, adopt after the electromagnetic oven that the utility model embodiment provides, because the back-pressure of IGBT reduces, carrying out when IGBT selects selecting the IGBT that anti-back-pressure is lower, reduce the cost of IGBT.
Because the utility model embodiment adopts lattice coil dish, can concentrate heating to pan bottom, improved the efficiency of electromagnetic oven, realize coexisting of high energy efficiency and low back-pressure.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of lattice coil dish in the utility model embodiment.
Reference numeral: 10-bobbin loader, 20-lattice coil dish, 21-top winding dish, 22-bottom coil dish.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of electromagnetic oven with lattice coil dish, and this electromagnetic oven comprises base and the panel that forms furnace chamber, is provided with electromagnetic wire coil in furnace chamber, and the conventional structure that wherein base and panel are electromagnetic oven repeats no more herein.As shown in Figure 1, electromagnetic wire coil in the utility model comprises bobbin loader 10 and is loaded on the lattice coil dish 20 on bobbin loader, lattice coil dish 20 comprises top winding dish 21 and bottom coil dish 22, wherein the concept of top and bottom is for the normal use location of electromagnetic oven of this solenoid of use, top winding dish is more pressed close to the pan on electromagnetic oven, during specific implementation, top winding dish 21 adopts single layer coil and presses close to panel setting, bottom coil dish 22 comprises at least one layer line circle, and in bottom coil dish 22, the wire circle of any one deck is less than the wire circle of top winding dish 21, make the top winding dish nearer apart from panel there is the more number of turns, improve the inductance value producing on top winding dish, realize the inductance value producing on top winding dish and can account for the larger ratio of whole coil panel inductance value.
Because top winding dish 21 is nearer apart from pan; make the decay of inductance value also relatively many; so when the scheme that adopts the utility model embodiment to provide is cooked; inductance value decay is also more; can reduce total inductance amount, thereby reduce the back-pressure of IGBT, can play the effect of protection IGBT; even if produce certain surge in power supply, the coil panel that the utility model embodiment provides can have higher resistivity.
In order to take into account the efficiency of heating surface that improves electromagnetic wire coil, bottom coil dish 22 in the utility model embodiment comprises at least two-layer coil, and the number of turns of each layer line circle in bottom coil dish 22 reduces from upper strata to lower floor, make the wire circle away from heating pan to be reduced relatively in the situation that increases coil, namely make the coil that inductance value is decayed less distribute less, thereby improving the coil that inductance value decay is larger distributes, thereby make the overall inductance amount decay of electromagnetic wire coil also more, can reduce total inductance amount, thereby reduce the back-pressure of IGBT, can play the effect of protection IGBT.
In order to make the efficiency of above-mentioned lattice coil dish have more obvious embodiment; in the utility model embodiment, every layer line circle of lattice coil dish 20 is back taper coiling from top to bottom from upper; make the coil of lower floor focus on middle as far as possible; can concentrate the middle part heating to pan; and inventor finds the middle part of pan to heat significantly improving energy efficiency; so the utility model embodiment adopts the lattice coil dish of back taper coiling can take into account heating efficiency; and can reduce IGBT back-pressure, play the effect of protection IGBT.
The scheme reducing to lower floor from upper strata for the number of turns of each layer line circle in bottom coil dish, preferably every layer line circle of lattice coil dish 20 adopts identical internal diameter coiling, not only can so that every layer line circle of lattice coil dish from the upper back taper that is from top to bottom, and can be so that the internal diameter of every layer line circle be identical, all be positioned at middle part, the better improving energy efficiency of lattice coil dish coil.
As far as possible little in order to guarantee IGBT back-pressure, in the utility model embodiment, in lattice coil dish, every layer line circle encloses than last layer coil few at least two, generally, select every layer line circle comparatively more suitable to 5 circles than few 3 circles of last layer coil, can take into account preferably efficiency and IGBT back-pressure.
Except adopting the above-mentioned scheme that is taper, the utility model embodiment can also adopt following scheme: wherein bottom coil dish 22 comprises at least two-layer coil, and the number of turns of the every layer line circle of bottom coil dish is identical, by reducing the number of turns of inner coil dish, make relatively to reduce away from the wire circle of heating pan, namely make the coil that inductance value is decayed less distribute less, thereby improving the coil that inductance value decay is larger distributes, thereby make the overall inductance amount decay of electromagnetic wire coil also more, can reduce total inductance amount, thereby reduce the back-pressure of IGBT, can play the effect of protection IGBT.And comparatively obvious in order to guarantee that IGBT back-pressure reduces, in the present embodiment, in bottom coil dish, the coil of one deck encloses than the coil of top winding dish few at least two arbitrarily, have most scheme be to lack 4 circles or 4 circle more than, and the internal diameter of every layer line circle of lattice coil dish also requires identical, can take into account better efficiency and IGBT back-pressure.
Electromagnetic wire coil in the utility model embodiment is provided with magnetic stripe, magnetic stripe comprises the long magnetic stripe that is crossed on top winding dish internal-and external diameter two ends, in order to improve better heating efficiency, magnetic stripe in the utility model embodiment also comprises the short magnetic stripe that is crossed on bottom coil dish internal-and external diameter two ends, this short magnetic stripe can, so that assemble more in the magnetic field, middle part of electromagnetic wire coil, improve the efficiency of heating surface.
In order to reduce the back-pressure of IGBT, except top winding dish is single layer coil dish, bottom coil dish is less than outside top winding dish, by controlling the length of top winding dish, can increase inductance value and decay, reach the object that reduces IGBT back-pressure, concrete is exactly the winding length of top winding dish to be arranged to account for the winding length 40% to 60% of whole lattice coil dish, optimum way be select the winding length of top winding dish account for whole lattice coil dish winding length 45% to 55%, the above-mentioned accounting of Scheme Choice that the utility model embodiment provides is 45%.
Certainly, the utility model embodiment can also control the inductance value of top winding dish, reach the object that reduces IGBT back-pressure, concrete scheme is: the inductance value that top winding dish produces is set to account for the inductance value 40% to 70% of lattice coil dish, optimum way is the inductance value 45% to 60% that the inductance value of selection top winding dish generation accounts for lattice coil dish, and the above-mentioned accounting of Scheme Choice that the utility model embodiment provides is 50%.
Electromagnetic wire coil in the utility model embodiment can adopt any mode in prior art to manufacture, direct coiling on single wire coil bracket, also can be on wire coil bracket after coiling to being incorporated on drum base, as long as can meet restriction and explanation to relation between top winding dish and bottom coil dish in the utility model, can realize the effect that meets high energy efficiency and low IGBT back-pressure simultaneously.
The utility model embodiment is mainly applicable to electromagnetic oven, the electromagnetic oven of especially back-pressure being had relatively high expectations.
In addition; although adopt IGBT to be described in the utility model embodiment; those skilled in the art can be replaced by IGBT the control that other control elements carry out electromagnetic wire coil as required; as long as the scheme providing in the utility model claim is provided; can realize the effect that reduces back-pressure, all belong to the claimed scope of the utility model.
The above; it is only the specific embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (10)
1. an electromagnetic oven with lattice coil dish, comprise the base and the panel that form furnace chamber, in furnace chamber, be provided with electromagnetic wire coil, electromagnetic wire coil comprises bobbin loader and is loaded on the lattice coil dish on bobbin loader, it is characterized in that, lattice coil dish comprises top winding dish and bottom coil dish, and top winding dish is single layer coil and presses close to panel setting, bottom coil dish comprises at least one layer line circle, and in bottom coil dish, the wire circle of any one deck is less than the wire circle of top winding dish.
2. electromagnetic oven according to claim 1, is characterized in that, described bottom coil dish comprises at least two-layer coil, and the number of turns of coil reduces from upper strata to lower floor.
3. electromagnetic oven according to claim 2, is characterized in that, every layer line circle of described lattice coil dish is back taper coiling from top to bottom from upper.
4. electromagnetic oven according to claim 2, is characterized in that, the internal diameter of every layer line circle of described lattice coil dish is identical.
5. electromagnetic oven according to claim 2, is characterized in that, in described lattice coil dish, every layer line circle is than few at least two circles of last layer coil.
6. electromagnetic oven according to claim 1, is characterized in that, described bottom coil dish comprises at least two-layer coil, and the number of turns of the every layer line circle of bottom coil dish is identical.
7. electromagnetic oven according to claim 6, is characterized in that, in described bottom coil dish, the coil of one deck encloses than the coil of top winding dish few at least two arbitrarily.
8. according to the electromagnetic oven described in any one in claim 1 to 7, it is characterized in that, described electromagnetic wire coil is provided with magnetic stripe, and magnetic stripe comprises the short magnetic stripe that is crossed on the long magnetic stripe at top winding dish internal-and external diameter two ends and is crossed on bottom coil dish internal-and external diameter two ends.
9. electromagnetic oven according to claim 1, is characterized in that, the winding length of described top winding dish accounts for the winding length 40% to 60% of lattice coil dish.
10. electromagnetic oven according to claim 1, is characterized in that, the inductance value that described top winding dish produces accounts for the inductance value 40% to 70% of lattice coil dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420096321.1U CN203823834U (en) | 2014-03-04 | 2014-03-04 | Induction cooker with multi-layered coil disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420096321.1U CN203823834U (en) | 2014-03-04 | 2014-03-04 | Induction cooker with multi-layered coil disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823834U true CN203823834U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420096321.1U Expired - Lifetime CN203823834U (en) | 2014-03-04 | 2014-03-04 | Induction cooker with multi-layered coil disc |
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| Country | Link |
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| CN (1) | CN203823834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970777A (en) * | 2019-05-19 | 2020-11-20 | 宁波方太厨具有限公司 | Wire coil for electromagnetic range |
-
2014
- 2014-03-04 CN CN201420096321.1U patent/CN203823834U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111970777A (en) * | 2019-05-19 | 2020-11-20 | 宁波方太厨具有限公司 | Wire coil for electromagnetic range |
| CN111970777B (en) * | 2019-05-19 | 2022-02-08 | 宁波方太厨具有限公司 | Wire coil for electromagnetic range |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: Huaiyin District of Ji'nan City, Shandong Province, 250117 US 999 miles Patentee after: JOYOUNG Co.,Ltd. Address before: Xinsha Road, Huaiyin District of Ji'nan city of Shandong Province, No. 12 250118 Patentee before: JOYOUNG Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |