CN104039033B - The electromagnetic induction heater of heated perimeter can be increased - Google Patents
The electromagnetic induction heater of heated perimeter can be increased Download PDFInfo
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- CN104039033B CN104039033B CN201310075878.7A CN201310075878A CN104039033B CN 104039033 B CN104039033 B CN 104039033B CN 201310075878 A CN201310075878 A CN 201310075878A CN 104039033 B CN104039033 B CN 104039033B
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- heating region
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- material container
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Abstract
The present invention is a kind of electromagnetic induction heater increasing heated perimeter, comprises: loading plate, has heating region and arranges at least one food material container；And multiple first induction coil, it is ellipsoidal structure respectively, and is arranged at the one side of loading plate, and each of which the first induction coil each provides sub-heating region to constitute heating region, so that at least one food material container to be heated.The present invention can increase the electromagnetic induction heater of heated perimeter and have a free space heating mode, and the position put because of food material container can be prevented bad and the problem that causes electromagnetic oven to damage.
Description
Technical field
The present invention is about a kind of electromagnetic induction heater, espespecially a kind of electromagnetic induction heater increasing heated perimeter.
Background technology
Development along with electronics industry, cooked food has been no longer limited by using traditional stove fire kitchen tools, such as the conditioning such as grill pan, electromagnetic oven, microwave oven electrical home appliances, in constantly research and development and progress, has become the electric equipment products that common people's daily life is indispensable in recent years.
Wherein, namely electromagnetic oven is utilize electromagnetic induction principle, when electromagnetic oven is energized, electric current produces magnetic field by the induction coil of electromagnetic oven, now, by conductor pan (such as iron pan, stainless-steel pan, the pans such as metal pan) it is placed in this magnetic field changed over, then can be changed therewith by the magnetic flux of conductor pan, and produce vortex flow to resist the change of magnetic flux, owing to heat can be produced when the vortex flow in conductor pan flows through resistance, principle hence with the raw heat of vortex flow, the autologous sensing heating of conductor pan can be made, with the food materials in heating and cooking pot tool, and reach the purpose boiled.
General electromagnetic oven used by family is generally multifurnace type at present.In general, except there is a main heating region, have more first, second secondary heating region, to reach the purpose that can many food material containers be boiled simultaneously.Wherein, first, second secondary heating region is arranged at the side of the first main heating region, and first, second secondary heating region can be heated by independent work, and first, second secondary electromagnetic assembly corresponding to heating region be respectively provided with a temperature inductor, in order to sense induction coil produced temperature in time heating food material container of correspondence.
But, in prior art, food material container need to be properly placed in the first or second secondary heating region and just can be heated, and the configuration mode of induction coil corresponding to first and second secondary heating region, more limits applicable food material container shape or size.In detail, if food material container is not accurately placed in the first or second secondary heating region, or when cannot be individually placed at because of the larger in size of food material container in the first or second secondary heating region, then food material container can be cross-placed between first and second secondary heating region, is so likely to result in and cannot heat.Even if can be heated, induction coil corresponding in the first or second secondary heating region to food material container effectively to add heat less, the fictitious power of induction coil is then too high with current value, it is easy to make induction coil burn, or electric energy consume is too much.
In addition, after electromagnetic oven heats a period of time, if user need to move to the second secondary heating region by being positioned over the heated food material container of the first secondary heating region, a temperature difference can be produced between the temperature that the temperature inductor of the temperature inductor of the first secondary heating region of higher temperatures and relatively the second secondary heating region of low temperature senses, when temperature difference arrives a preset value, controller in electromagnetic oven can stop the induction coil of the first secondary heating region and continue heating, to prevent the induction coil of the first secondary heating region from causing fictitious power (reactivepower) and the magnitude of current to increase because continuing heating, and avoid this induction coil to burn.
What is more, when food material container by the first secondary heating region move to the second secondary heating region be heated time, owing to the temperature of the second secondary heating region is low compared to heated food material container, that is the temperature that the temperature inductor of correspondence senses is also below heated food material container, and controller will drive induction coil to be heated according to the temperature of the temperature-sensitive sticker of the corresponding second secondary heating region, thus, the food material container of high temperature can be heated by induction coil constantly that be in low temperature, and then cause that the food materials in food material container burn, or make food material container itself cause damage, also result in the disappearance that induction coil fictitious power increases and easily burns.
Therefore, how to develop the electromagnetic induction heater of a kind of increased heated perimeter improving above-mentioned prior art disappearance, actually those skilled in the art's required problem solved at present.
Summary of the invention
It is an object of the invention to provide a kind of electromagnetic induction heater increasing heated perimeter, it is by changing the shape of multiple induction coil and configuration mode, and detect putting position and the projected area of food material container, and control according to this position and projected area and the heating power or electric energy that provide to multiple induction coils are provided, thereby make electromagnetic induction heater have a free space heating mode, and the position put because of food material container can be prevented bad and the problem that causes electromagnetic oven to damage.
Another object of the present invention is to provide a kind of electromagnetic induction heater increasing heated perimeter, compared to prior art same loading plate heating region area under, bigger heated perimeter can be provided, thereby promote the electromagnetic induction heater efficiency of heating surface to food material container, be also provided that the food material container of more diversified shape is heated.
A further object of the present invention is in that to provide a kind of electromagnetic induction heater increasing heated perimeter, can according to the placement location of food material container, and then adjustment provides the electricity giving multiple first induction coil, effectively to promote the efficiency of heating surface, and reduce the electric energy loss of the first induction coil.
It is still another object of the present invention to provide a kind of electromagnetic induction heater increasing heated perimeter, multiple first induction coils are sensed by a temperature-sensitive sticker, to prevent electromagnetic induction heater from causing damage because the first induction coil is overheated, thereby to promote security appliance.
For reaching above-mentioned purpose, a broader embodiment of the present invention, for providing a kind of electromagnetic induction heater, comprises: loading plate, has heating region and arranges at least one food material container；And multiple first induction coil, it is ellipsoidal structure respectively, and is arranged at the one side of loading plate, and each of which the first induction coil each provides sub-heating region to constitute heating region, so that at least one food material container to be heated.
For reaching above-mentioned purpose, another broader embodiment of the present invention, for providing a kind of electromagnetic induction heater, comprises: loading plate, has a heating region and arranges at least one food material container；And multiple first induction coil, it is ellipsoidal structure respectively, and it is arranged at the one side of loading plate, each of which the first induction coil each provides sub-heating region to constitute heating region, and multiple first induction coil gives required electric energy according to this at least one food material container in a projected area ratio offer of each sub-heating region of the heating region of loading plate.
Accompanying drawing explanation
Fig. 1 is the schematic appearance of the electromagnetic induction heater of present pre-ferred embodiments.
Fig. 2 is the schematic diagram of the first induction coil of the electromagnetic induction heater shown in Fig. 1 and the second induction coil.
Fig. 3 is the block chart of the internal circuit blocks of the electromagnetic induction heater of the present invention.
Fig. 4 is that display one food material container is positioned over the schematic diagram that electromagnetic induction heater shown in Fig. 1 is heated.
Wherein, description of reference numerals is as follows:
Electromagnetic induction heater: 1
Loading plate: 11
Heating region: 110,111
First induction coil: 12
Sub-heating region: 120
First projected area: 121
Second projected area: 122
Second induction coil: 13
Circuit module: 14
Control unit: 141
First power-supply unit: 142
Temperature-sensitive sticker: 143
Man machine operation interface: 145
Second source feeding unit: 146
Food material container: 2
Temperature sensing signal: S1
Control signal: C1
Operation signal: A1
Detailed description of the invention
Some exemplary embodiments embodying feature of present invention and advantage will describe in detail in the explanation of back segment.Iting should be understood that the present invention can have various changes in different modes, it neither departs from the scope of the present invention, and explanation therein and be shown in the use being substantially illustrated as, and is not used to the restriction present invention.
Referring to Fig. 1 and Fig. 2, wherein Fig. 1 is the schematic appearance of the electromagnetic induction heater of present pre-ferred embodiments；Fig. 2 is the schematic diagram of the first induction coil of the electromagnetic induction heater shown in Fig. 1 and the second induction coil.The electromagnetic induction heater 1 of the present invention can be but be not limited to electromagnetic oven.Electromagnetic induction heater 1 comprises loading plate 11 and multiple first induction coil 12, and wherein loading plate 11 has a heating region 110, arranges at least one food material container (not shown) to be heated.In the present embodiment, food material container can be conductor pan, for instance metal pan.Multiple first induction coil 12 respectively ellipsoidal structures, and it is arranged at the one side of loading plate 11, each of which the first induction coil 12 can each provide a sub-heating region 120, is formed in the surface on loading plate 11 with correspondence and forms heating region 110.In the present embodiment, multiple first induction coils 12 are for arrange tangent to each otherly, but are not limited, and also can arrange separated from one anotherly so that multiple first induction coils 12 can have bigger area coverage for preferably in heating region 110.
Referring again to Fig. 1 and Fig. 2, in the present embodiment, electromagnetic induction heater 1 is a multifurnace type structure, it also comprises the second induction coil 13, it is arranged at the one side of loading plate 11, and second the area of induction coil 13 be relatively larger than the area of the first induction coil 12, in order to the food material container being relatively large in diameter to be heated, wherein the profile of the second induction coil 13 is its heating region 111.Multiple first induction coils 12 are arranged in the side of the second induction coil 13, but are not limited.In the present embodiment, multiple first induction coils 12 are made up of two the first oval induction coils 12, but its number is not limited, and also can appoint according to actual demand and execute change.Multiple first induction coil 12 respectively ellipsoidal structures, and setting tangent to each other, therefore compared to prior art, under the area of the heating region 110 of same loading plate 11, each first induction coil 12 has bigger sub-heating region 120, the ratio that sub-heating region 120 sum total of multiple first induction coils 12 accounts for whole heating region 110 is of a relatively high, thereby promote the electromagnetic induction heater 1 efficiency of heating surface to food material container, also the food material container of more diversified shape it is provided that, such as square, it is heated.
The electromagnetic induction heater 1 of the present invention also comprises a circuit module 14, in order to drive electromagnetic induction heater 1, so that food material container is heated.Referring to Fig. 3, it is the block chart of internal circuit blocks of electromagnetic induction heater of the present invention.As shown in the figure, the circuit module of electromagnetic induction heater 1 comprises control unit the 141, first power-supply unit 142, temperature-sensitive sticker 143 and man machine operation interface 145, and wherein temperature-sensitive sticker 143 framework is in sensing the temperature of multiple first induction coils 12 and with producing a temperature sensing signal S1.First power-supply unit 142 electrically connects with multiple first induction coils 12, in order to provide the electric energy needed for this first induction coil 12 each so that food material container is carried out electromagnetic induction heating and produces one and add heat by multiple first induction coils 12.Control unit 141 electrically connects with temperature-sensitive sticker the 143, first power-supply unit 142 and man machine operation interface 145, and according to the temperature sensing signal S1 of institute's reception temperature-sensitive sticker 143, transmit a control signal C1 to first power-supply unit 142 therewith, adjust to provide and give heating power or the electric energy of each first induction coil 12 controlling the first power-supply unit 142.Man machine operation interface 145 electrically connects with control unit 141, produces an operation signal A1 in order to the operation with user to control unit 141.
This circuit module 14 also includes multiple position sensor (not shown), it is adjacent to this first induction coil 12 of correspondence respectively, in order to sense this at least one food material container in the position of this heating region and projected area, and produce multiple sensing signal therewith.
In the present embodiment, the circuit module of the present invention also comprises second source feeding unit 146, second source feeding unit 146 electrically connects with control unit 141 and the second induction coil 13, in order to provide the electric energy needed for the second induction coil 13 so that food material container is carried out electromagnetic induction heating and produces one and add heat by the second induction coil 13.
Conceive according to the present invention, the electromagnetic induction heater 1 of the present invention can have a free space heating mode (FreeSpaceMode), that is food material container 2 can be arbitrarily positioned in heating region 110 and need not be directed at the sub-heating region of each induction coil and can be heated by user.When electromagnetic induction heater 1 switches to this pattern, the position that electromagnetic induction heater 1 can be put on the heating region 110 of loading plate 11 according to food material container, and adjust respective heating power or the electric energy of multiple first induction coil 12 therewith, it is heated in heating region to reach can arbitrarily to place food material container 2, and the purpose of usefulness can be promoted.
Referring to Fig. 4 and coordinate Fig. 3, wherein Fig. 4 shows that a food material container is positioned over the schematic diagram that electromagnetic induction heater shown in Fig. 1 is heated.As shown in Figure 4, when electromagnetic induction heater 1 switches to free space heating mode, when food material container 2 being positioned between the sub-heating region 120 that two the first induction coils 12 are formed, each first induction coil 12 putting position according to food material container 2, the projected area ratio of the sub-heating region 120 of the first induction coil 12 of correspondence such as it is positioned at according to food material container 2, and the corresponding heat energy of corresponding generation, so that food material container 2 is heated.Specifically, control unit 141 is produced a control signal C1 to first power-supply unit 142 according to the received ratio according to this projected area, thereby the first power-supply unit 142 can adjust according to the control of control unit 141 provides heating power or the electric energy giving each first induction coil 12, and the area ratio of the sub-heating region 120 that therefore automatically can be projected on each the first induction coil 12 according to food material container 2 adjusts and the heating power or the electric energy that control each first induction coil 12 respectively.
For Fig. 4, food material container 2 forms the first projected area 121 and the second projected area 122 respectively on each sub-heating region 120 of heating region 110, wherein the first projected area 121 is less than the second projected area 122, but being not limited, the first projected area 121 also can more than or equal to this second projected area 122.And control unit 141 is according to the ratio of the first projected area 121 and the second projected area 122, produces a control signal C1 therewith and be sent to the first power-supply unit 16.Afterwards, first power-supply unit 142 can adjust according to the control of control unit 141 provides heating power or the electric energy giving each first induction coil 12, and the projected area ratio of the sub-heating region 120 that therefore automatically can be projected on each the first induction coil 12 according to food material container 2 adjusts and the heating power or the electric energy that control each first induction coil 12 respectively.In other words, even if food material container 2 is not accurately placed in the sub-heating region 120 of the first induction coil 12, the projected area of the sub-heating region 120 of each first induction coil 12 can be positioned at according to food material container 2 by the electromagnetic induction heater 1 of the present invention, and then automatically adjust heating power or electric energy produced by multiple first induction coil 12, and first induction coil 12 of the cooperation present invention is an ellipsoidal structure design, and compared to prior art, there is bigger sub-heating region 120, effectively to promote first induction coil 12 efficiency of heating surface for food material container 2, and avoid causing the first induction coil 12 to produce more fictitious power.
Certainly, in some embodiments, when food material container 2 is positioned at the first projected area 121 of the sub-heating region 120 of the first induction coil 12 less than a preset value, it is user to be moved toward another first induction coil 12 by food material container 2, and when making the first projected area 121 much smaller than the second projected area 122, make control unit 141 can control this first power-supply unit 142 to stop the first induction coil 12 corresponding to the first projected area 121 is powered, and food material container 2 is not heated, but either directly through another first induction coil 12, food material container 2 is heated, to avoid producing more fictitious power, and cause the disappearances such as heat efficiency reduction and electric energy consume.
Shown in Fig. 2 and Fig. 4 of the present invention, the electromagnetic induction heater 1 of the present invention has more a temperature-sensitive sticker 143, and it is adjacent between multiple first induction coil 12, in order to sense the temperature of the first induction coil 12.Wherein, as shown in Figure 4, if temperature-sensitive sticker 143 sensed in multiple first induction coil 12 therein any one temperature higher than a preset value time, can produce and transmit a temperature sensing signal S1 to control unit 141, and this control element 141 can control the first power-supply unit 142 with this temperature sensing signal S1, the first power-supply unit 142 is made to stop each first induction coil 12 is powered, the first induction coil 12 is thereby allowed to stop heating, to avoid causing the first induction coil 12 itself because the first induction coil 12 is overheated, or electromagnetic induction heater 1 damages, thereby promote security appliance.
In sum, the electromagnetic induction heater of the increased heating region of the present invention by by change multiple first induction coil be shaped as ellipsoidal structure and and configuration mode, make compared under the area of the heating region of the same loading plate of prior art, the ratio that the sub-heating region sum total of multiple first induction coils accounts for whole heating region is of a relatively high, thereby promote the electromagnetic induction heater efficiency of heating surface to food material container, be also provided that the food material container of more diversified shape is heated.In addition, electromagnetic induction heater more can detect putting position and the projected area of food material container, and control and the heating power or electric energy that provide to multiple first induction coils are provided, this makes electromagnetic induction heater have free space heating mode, and the position put because of food material container can be prevented bad and the problem that causes electromagnetic oven to damage, effectively to promote the efficiency of heating surface.It addition, electromagnetic induction heater senses multiple first induction coils by a temperature-sensitive sticker, to prevent electromagnetic induction heater from causing damage because the first induction coil is overheated, thereby to promote security appliance.
The present invention must be appointed by those skilled in the art execute craftsman think and be all as modify, apply for a patent the be intended to protector of right appended by so neither de-.
Claims (8)
1. an electromagnetic induction heater, comprises:
One loading plate, has a heating region and arranges at least one food material container, and this at least one food material container forms a projected area respectively in each sub-heating region of this heating region of this loading plate；And
Multiple first induction coils, it is an ellipsoidal structure respectively, and it is arranged at the one side of this loading plate, this first induction coil of each of which each provides a sub-heating region to constitute this heating region, so that this at least one food material container is heated, when this food material container is arbitrarily positioned in heating region and during without being directed at the sub-heating region of each first induction coil, provide according to the placement location adjustment on this heating region of this food material container and give the plurality of first respective electric energy of induction coil；
Also comprise a circuit module, comprise:
One first power-supply unit, is electrically connected to the plurality of first induction coil, with the electric energy needed for providing the plurality of first induction coil each；And
One control unit, electrically connect with this first power-supply unit, produce a control signal to control the electric energy that this first power-supply unit provides the plurality of first induction coil each required, this control unit in this projected area ratio of respectively this sub-heating region of this heating region of this loading plate according to this at least one food material container, adjusts and controls this first power-supply unit offer electric energy to the plurality of first induction coil；
Wherein this control unit is according to this at least one food material container in this projected area ratio of respectively this sub-heating region of this heating region of this loading plate, adjusts and controls this first power-supply unit offer electric energy to the plurality of first induction coil.
2. electromagnetic induction heater as claimed in claim 1, wherein this electromagnetic induction heater is an electromagnetic oven, and this food material container is a conductor pan.
3. electromagnetic induction heater as claimed in claim 1, wherein the plurality of first induction coil is arranged at this side of this loading plate tangent to each otherly.
4. electromagnetic induction heater as claimed in claim 1, wherein this circuit module also includes a temperature-sensitive sticker, is adjacent between the plurality of first induction coil, for sensing the temperature of the plurality of first induction coil.
5. electromagnetic induction heater as claimed in claim 4, wherein when this temperature-sensitive sticker is higher than a preset value in the arbitrary temperature sensing the plurality of first induction coil, this temperature-sensitive sticker produces a temperature sensing signal to this control unit, this control unit produces this with this temperature-sensitive sticker and controls signal to this first power-supply unit, stops providing electric energy to this first induction coil controlling this first power-supply unit.
6. electromagnetic induction heater as claimed in claim 1, wherein this circuit module also includes multiple position sensor, it is adjacent to this first induction coil of correspondence respectively, in order to sense this at least one food material container in the position of this heating region and projected area, and produces multiple sensing signal therewith.
7. electromagnetic induction heater as claimed in claim 1, it also comprises one second induction coil, is arranged at this side of this loading plate, and the plurality of first induction coil is arranged in the side of this second induction coil.
8. an electromagnetic induction heater, comprises:
One loading plate, has a heating region and arranges at least one food material container；And
Multiple first induction coils, it is an ellipsoidal structure respectively, and it is arranged at the one side of this loading plate, this first induction coil of each of which each provides a sub-heating region to constitute this heating region, and the plurality of first induction coil gives required electric energy according to this at least one food material container in a projected area ratio offer of respectively this sub-heating region of this heating region of this loading plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310075878.7A CN104039033B (en) | 2013-03-08 | 2013-03-08 | The electromagnetic induction heater of heated perimeter can be increased |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310075878.7A CN104039033B (en) | 2013-03-08 | 2013-03-08 | The electromagnetic induction heater of heated perimeter can be increased |
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| CN104039033A CN104039033A (en) | 2014-09-10 |
| CN104039033B true CN104039033B (en) | 2016-06-29 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB201511359D0 (en) | 2015-06-29 | 2015-08-12 | Nicoventures Holdings Ltd | Electronic vapour provision system |
| GB201511358D0 (en) * | 2015-06-29 | 2015-08-12 | Nicoventures Holdings Ltd | Electronic aerosol provision systems |
| GB201511361D0 (en) | 2015-06-29 | 2015-08-12 | Nicoventures Holdings Ltd | Electronic vapour provision system |
| GB201511349D0 (en) | 2015-06-29 | 2015-08-12 | Nicoventures Holdings Ltd | Electronic aerosol provision systems |
| KR101851889B1 (en) * | 2017-01-12 | 2018-06-07 | 엘지전자 주식회사 | Induction heat cooking apparatus |
| EP3544374B1 (en) | 2018-03-23 | 2020-09-23 | Whirlpool Corporation | Induction cooktop with improved magnetic flux concentrating foil |
| EP3544376B1 (en) | 2018-03-23 | 2020-08-26 | Whirlpool Corporation | Connection interface for induction coil array |
| EP3544377B1 (en) | 2018-03-23 | 2020-08-05 | Whirlpool Corporation | Temperature sensor compression features for induction cooktop assembly |
| CN109502193A (en) * | 2018-12-17 | 2019-03-22 | 李天俊 | Heating packaging and preparation method thereof, food heating method |
| CN110131757A (en) * | 2019-04-15 | 2019-08-16 | 广东瑞德智能科技股份有限公司 | A kind of electromagnetic oven |
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| CN102282910A (en) * | 2009-03-06 | 2011-12-14 | 三菱电机株式会社 | Induction cooking device |
| CN102342177A (en) * | 2009-03-06 | 2012-02-01 | 三菱电机株式会社 | Induction cooking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005026204A (en) * | 2003-06-13 | 2005-01-27 | Sharp Corp | Induction heating cooker |
| JP5430417B2 (en) * | 2010-01-18 | 2014-02-26 | 三菱電機株式会社 | Induction heating cooker |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102282910A (en) * | 2009-03-06 | 2011-12-14 | 三菱电机株式会社 | Induction cooking device |
| CN102342177A (en) * | 2009-03-06 | 2012-02-01 | 三菱电机株式会社 | Induction cooking device |
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