CN202111890U - Heating coils for electric food warmer and control circuit thereof - Google Patents
Heating coils for electric food warmer and control circuit thereof Download PDFInfo
- Publication number
- CN202111890U CN202111890U CN2011202105688U CN201120210568U CN202111890U CN 202111890 U CN202111890 U CN 202111890U CN 2011202105688 U CN2011202105688 U CN 2011202105688U CN 201120210568 U CN201120210568 U CN 201120210568U CN 202111890 U CN202111890 U CN 202111890U
- Authority
- CN
- China
- Prior art keywords
- heater coil
- sidepiece
- switch
- coil
- food warmer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title abstract description 37
- 238000000034 method Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1227—Cooking devices induction cooking plates or the like and devices to be used in combination with them for wok pans and wok pans supports for induction cooking plates
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
- H05B6/1272—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements with more than one coil or coil segment per heating zone
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/02—Induction heating
- H05B2206/022—Special supports for the induction coils
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Resistance Heating (AREA)
- Cookers (AREA)
Abstract
The utility model discloses heating coils for an electric food warmer and a control circuit thereof, and relates to the technical field of kitchen electrical appliances, aiming to solve the problem in the prior art that the heating method of the electric food warmer is simplex. The control circuit provided by the embodiment of the utility model comprises a power matching circuit, a power switch and a control unit, wherein the power matching circuit is connected to the power supply end of a commercial power; the bottom heating coil and the lateral heating coil are parallelly connected to the output end of the power matching circuit; the power switch is connected between the output end of a working power and the heating coils; an electronic control switch is further serially connected to the bottom heating coil and/or the lateral heating coil; the power matching circuit is used for converting the commercial power into the working power of the heating coils; and the control unit is used for controlling the on and off of the power switch and the electronic control switch. The embodiment of the utility model is mainly used in the electromagnetic food warmer.
Description
Technical field
The utility model relates to the kitchen appliance technical field, relates in particular to the heater coil and the control circuit thereof of electric food warmer.
Background technology
The electric food warmer that adopts electromagnetic induction principle to heat is disclosed in the prior art; This type electric food warmer groundwork principle is: the pot courage is arranged in the coil brace; And coiling in the outside of coil brace; Through in coil, feeding electric current, so that produce high-intensity magnetic field around the coil, so that utilize high-intensity magnetic field that the pot courage is heated.In order to realize three-dimensional heating, the general while is provided with coil in bottom and sidepiece, and the coil employing of bottom and sidepiece is formed with one lead coiling.
Realizing and using in the process of above-mentioned electromagnetism heating electric food warmer; The inventor finds to have following problem in the prior art at least: form with one lead coiling because the coil of bottom and sidepiece adopts; When heating, can't add thermal control respectively, make that the mode of heating of electric food warmer is comparatively single bottom coil and side coil.
The utility model content
The utility model technical problem to be solved is to overcome the deficiency of prior art and provides a kind of and can bottom coil and side coil be added thermal control respectively, with the heater coil and the control circuit thereof of the electric food warmer that enriches mode of heating.
For achieving the above object, the utility model adopts following technical scheme:
A kind of heater coil of electric food warmer comprises the sidepiece heater coil that is arranged on pot bottom heater coil of shape bobbin bottom, reaches sidepiece; Said bottom heater coil and sidepiece heater coil are electrically connected to feeder ear with parallel way; Be in series with electronic control switch on said bottom heater coil and/or the sidepiece heater coil.
Said bottom heater coil and sidepiece heater coil all adopt and closely are wound on the bobbin around mode; Perhaps
Said bottom heater coil and sidepiece heater coil all adopt to dredge and are wound on the bobbin around mode; Perhaps
The heater coil employing of said bottom is close to be wound on the bobbin around mode, and said sidepiece heater coil adopts to dredge and is wound on the bobbin around mode; Perhaps
Said bottom heater coil adopts to dredge and is wound on the bobbin around mode, and said sidepiece heater coil employing is close to be wound on the bobbin around mode.
A kind of heater coil control circuit of electric food warmer, said heater coil comprise pot bottom heater coil of shape bobbin bottom, reach the sidepiece heater coil of sidepiece; Said control circuit comprises power supply adapter circuit, mains switch and control unit; Said power supply adapter circuit is connected to the mains-supplied end, and said bottom heater coil and sidepiece heater coil are connected to the output of power supply adapter circuit with parallel way, and said mains switch is connected between the output and heater coil of said working power; Also be in series with electronic control switch on said bottom heater coil and/or the sidepiece heater coil;
Said power supply adapter circuit converts mains supply into the working power of heater coil; Said control unit is controlled the disconnection and the conducting of said mains switch and is controlled the disconnection and the conducting of said electronic control switch.
Said mains switch is IGBT, and the base voltage that said control unit outputs to said IGBT through change is controlled disconnection and the conducting of said IGBT.
Said electronic control switch is a triode, and the base voltage that said control unit outputs to said triode through change is controlled the disconnection and the conducting of said triode; Perhaps
Said electronic control switch is a relay switch, and said control unit outputs to disconnection and the conducting that relay control voltage is controlled said relay switch through change.
The heater coil of the electric food warmer that the utility model provides and control circuit thereof; Because pot shape bobbin is provided with bottom heater coil and sidepiece heater coil; And bottom heater coil and sidepiece heater coil are electrically connected to feeder ear with parallel way; In order to realize the control respectively to bottom heater coil and sidepiece heater coil, the utility model embodiment also is in series with electronic control switch on one of them or two of bottom heater coil, sidepiece heater coil.Disconnection and conducting through the control electronic control switch can realize the control respectively that bottom and sidepiece heat; Because bottom heating and sidepiece heating can be controlled respectively, then can realize multiple different mode of heating, for example: the bottom heating realizes normal heating separately, and bottom and sidepiece heat the realization Fast Heating simultaneously, and the sidepiece heating realizes heat insulation function separately.
In sum, adopt after the utility model embodiment, can bottom coil and side coil be added thermal control respectively, to enrich mode of heating.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a heater coil coiling sketch map among the utility model embodiment;
Fig. 2 is a kind of heater coil coiling mode sketch map among the utility model embodiment;
Fig. 3 is an another kind of heater coil coiling mode sketch map among the utility model embodiment;
Fig. 4 is another heater coil coiling mode sketch map among the utility model embodiment;
Fig. 5 is another heater coil coiling mode sketch map among the utility model embodiment;
Fig. 6 is a heater coil control circuit sketch map among the utility model embodiment.
Reference numeral:
10 pots of shape bobbin 11 bottom heater coils
12 sidepiece heater coils, 21 power supply adapter circuits
22 mains switches, 23 control units
24 electronic control switch, 25 mains-supplied ends
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of heater coil of electric food warmer, and is as shown in Figure 1, and the utility model embodiment is provided with bottom heater coil 11 in pot shape bobbin 10 bottoms, at sidepiece sidepiece heater coil 12 is set; In order to realize control respectively to bottom heater coil 11 and sidepiece heater coil 12; Also bottom heater coil 11 and sidepiece heater coil 12 are electrically connected to feeder ear with parallel way, and on bottom heater coil 11 and/or sidepiece heater coil 12, are in series with electronic control switch.
Above-mentioned Fig. 1 only is the coiling sketch map of the utility model heater coil, and not as the qualification of the utility model protection range, concrete circuit connects referring to subsequent drawings and description.
The electronic control switch of particularly can only on the heater coil of bottom, connecting, the electronic control switch of also can on the sidepiece heater coil, connecting separately, the electronic control switch of also can on bottom heater coil and sidepiece heater coil, all connecting.
The coiling mode of bottom heater coil and sidepiece heater coil can adopt but is not limited to following scheme in this use new embodiment:
The first, as shown in Figure 2, said bottom heater coil 11 and sidepiece heater coil 12 all adopt and closely are wound on the bobbin around mode.
The second, as shown in Figure 3, said bottom heater coil 11 all adopts to dredge with sidepiece heater coil 12 and is wound on the bobbin around mode.
Three, as shown in Figure 4, said bottom heater coil 11 adopts and closely is wound on the bobbin around mode, and said sidepiece heater coil 12 adopts to dredge and is wound on the bobbin around mode.
Four, said bottom as shown in Figure 5 heater coil 11 adopts to dredge and is wound on the bobbin around mode, and said sidepiece heater coil 12 adopts and closely is wound on the bobbin around mode.
Above-mentioned any employing dredge around scheme, fix through following mode: in the bobbin relevant position spaced groove is set, specifically realizes with reference to figure 1, and with coil in groove.
After adopting the utility model embodiment, the control respectively that can realize bottom and sidepiece heating through the disconnection and the conducting of control electronic control switch; Because bottom heating and sidepiece heating can be controlled respectively, then can realize multiple different mode of heating, for example: the bottom heating realizes normal heating separately, and bottom and sidepiece heat the realization Fast Heating simultaneously, and the sidepiece heating realizes heat insulation function separately.So, adopt after the utility model embodiment, can bottom coil and side coil be added thermal control respectively, to enrich mode of heating.
When concrete the installation, the bottom heater coil among the utility model embodiment can be between bobbin and bottom coil pressing plate, and the bottom magnetic stripe is installed between bottom coil pressing plate and the bottom heater coil; The sidepiece heater coil is between bobbin and side coil pressing plate, and the sidepiece magnetic stripe is installed between side coil pressing plate and the sidepiece heater coil.
The utility model embodiment also provides a kind of heater coil control circuit of electric food warmer; So that above-mentioned heater coil is added thermal control; Said heater coil comprises pot bottom heater coil of shape bobbin bottom, reaches the sidepiece heater coil of sidepiece; Concrete heater coil structure can realize referring to figs. 1 to the scheme of Fig. 5, repeats no more here.And one or two in bottom heater coil, the sidepiece heater coil are in series with electronic control switch 24, have only expressed the scheme of series connection electronic control switch in the heater coil of bottom among Fig. 6.
Be that example describes with a kind of control circuit among Fig. 6 below, this control circuit comprises power supply adapter circuit 21, mains switch 22 and control unit 23; Mains switch 22 among Fig. 6 adopts IGBT to realize, can adopt other electronic switch when specifically using, like triode etc.
Power supply adapter circuit 21 in the present embodiment is connected to mains-supplied end 25; So that just mains supply converts the working power of heater coil 11 and 12 into; Said bottom heater coil 11 and sidepiece heater coil 12 are connected to the output of said power supply adapter circuit 21 with parallel way; So that power supply adapter circuit 21 is input to heater coil with working power; In order to realize the control to working power, present embodiment is connected said mains switch 22 between the output and heater coil of said working power.Said control unit 23 is controlled disconnection and the conducting of said IGBT through the base voltage that change outputs to said IGBT, thereby realizes the disconnection and the conducting of working power.
When the control respectively that realizes bottom heater coil 11 and sidepiece heater coil 12, the disconnection and the conducting of the said electronic control switch 24 of control unit 23 controls among the utility model embodiment are so that realize the mode of heating variation.
When concrete the realization, present embodiment electronic control switch 24 can adopt triode, and the base voltage that said control unit 23 outputs to said triode through change is controlled the disconnection and the conducting of said triode.Certainly, electronic control switch 24 also can adopt relay switch among the utility model embodiment, and is specifically as shown in Figure 6, and said control unit outputs to disconnection and the conducting that relay control voltage is controlled said relay switch through change.
According to the control circuit among Fig. 6; Can adopt but be not limited to following flow process and control: when operate as normal; With 2 conductings of the relay K among Fig. 6, carry out the heating at intermittence simultaneously through power transistor IGBT control sidepiece heater coil and bottom heater coil and realize heating.After accomplishing heating, surround if desired, then relay K 2 is broken off, intermittently heat through power transistor IGBT control sidepiece heater coil low-power and realize insulation.
The electronic control switch of can also in the sidepiece heater coil, connecting among the utility model embodiment, the electronic control switch of perhaps in sidepiece heater coil and bottom heater coil, all connecting repeats no more here.
The utility model embodiment is mainly used in various electric food warmers, especially needs to be incubated, the electric food warmer of multiple mode of heating such as heating.
The above; Be merely the embodiment of the utility model; But the protection range of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection range of the utility model.Therefore, the protection range of the utility model should be as the criterion with the protection range of claim.
Claims (5)
1. the heater coil of an electric food warmer comprises the sidepiece heater coil that is arranged on pot bottom heater coil of shape bobbin bottom, reaches sidepiece; It is characterized in that said bottom heater coil and sidepiece heater coil are electrically connected to feeder ear with parallel way; Be in series with electronic control switch on said bottom heater coil and/or the sidepiece heater coil.
2. the heater coil of electric food warmer according to claim 1 is characterized in that:
Said bottom heater coil and sidepiece heater coil all adopt and closely are wound on the bobbin around mode; Perhaps
Said bottom heater coil and sidepiece heater coil all adopt to dredge and are wound on the bobbin around mode; Perhaps
The heater coil employing of said bottom is close to be wound on the bobbin around mode, and said sidepiece heater coil adopts to dredge and is wound on the bobbin around mode; Perhaps
Said bottom heater coil adopts to dredge and is wound on the bobbin around mode, and said sidepiece heater coil employing is close to be wound on the bobbin around mode.
3. the heater coil control circuit of an electric food warmer, said heater coil comprise pot bottom heater coil of shape bobbin bottom, and the sidepiece heater coil of sidepiece; It is characterized in that said control circuit comprises power supply adapter circuit, mains switch and control unit; Said power supply adapter circuit is connected to the mains-supplied end, and said bottom heater coil and sidepiece heater coil are connected to the output of power supply adapter circuit with parallel way, and said mains switch is connected between the output and heater coil of said working power; Also be in series with electronic control switch on said bottom heater coil and/or the sidepiece heater coil;
Said power supply adapter circuit converts mains supply into the working power of heater coil; Said control unit is controlled the disconnection and the conducting of said mains switch and is controlled the disconnection and the conducting of said electronic control switch.
4. the heater coil control circuit of electric food warmer according to claim 3 is characterized in that, said mains switch is IGBT, and the base voltage that said control unit outputs to said IGBT through change is controlled disconnection and the conducting of said IGBT.
5. the heater coil control circuit of electric food warmer according to claim 3 is characterized in that:
Said electronic control switch is a triode, and the base voltage that said control unit outputs to said triode through change is controlled the disconnection and the conducting of said triode; Perhaps
Said electronic control switch is a relay switch, and said control unit outputs to disconnection and the conducting that relay control voltage is controlled said relay switch through change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202105688U CN202111890U (en) | 2011-06-21 | 2011-06-21 | Heating coils for electric food warmer and control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202105688U CN202111890U (en) | 2011-06-21 | 2011-06-21 | Heating coils for electric food warmer and control circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111890U true CN202111890U (en) | 2012-01-11 |
Family
ID=45437339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202105688U Expired - Lifetime CN202111890U (en) | 2011-06-21 | 2011-06-21 | Heating coils for electric food warmer and control circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111890U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080466A (en) * | 2016-02-16 | 2017-08-22 | 广东美的生活电器制造有限公司 | Food processor |
| CN108158422A (en) * | 2017-12-01 | 2018-06-15 | 九阳股份有限公司 | A kind of method for heating and controlling of food processor |
-
2011
- 2011-06-21 CN CN2011202105688U patent/CN202111890U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107080466A (en) * | 2016-02-16 | 2017-08-22 | 广东美的生活电器制造有限公司 | Food processor |
| CN108158422A (en) * | 2017-12-01 | 2018-06-15 | 九阳股份有限公司 | A kind of method for heating and controlling of food processor |
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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, 250118 US 999 miles Patentee after: Joyoung Company Limited Address before: Xinsha Road, Huaiyin District of Ji'nan city of Shandong Province, No. 12 250118 Patentee before: Joyoung Company Limited |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |