CN201014584Y - Multi-stove burner electromagnetic stove - Google Patents
Multi-stove burner electromagnetic stove Download PDFInfo
- Publication number
- CN201014584Y CN201014584Y CNU2007200030106U CN200720003010U CN201014584Y CN 201014584 Y CN201014584 Y CN 201014584Y CN U2007200030106 U CNU2007200030106 U CN U2007200030106U CN 200720003010 U CN200720003010 U CN 200720003010U CN 201014584 Y CN201014584 Y CN 201014584Y
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- relay
- control
- electromagnetic oven
- switch unit
- multiple head
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Abstract
The utility model relates to an electromagnetic oven, in particular to a multi-stove head electromagnetic oven exclusively for tea cooking. The utility model receives the control signal of a control main board by a switching unit to control one of the two heating coils to obtain the power for work, the utility model only uses one main circuit board, the power level of each stove head is time-sharing switched and distributed according to the needs via a switch appliance, thereby greatly reducing the problems of the electromagnetic and noise interferences and avoiding the mutual interferences between two heating control boards, the power can be regulated according to the needs, so each stove head can output certain power respectively, further to realize all functions of the multi-stove head electromagnetic oven.
Description
Technical field
The utility model relates to a kind of electromagnetic oven, particularly a kind of multiple head electromagnetic oven of brewing tea that is exclusively used in.
Technical background
At present, existing multiple head electromagnetic oven as shown in fig. 1, accept user's setting by a control mainboard, and control respectively adds the work of thermal control plate respectively, each burner correspondence is provided with a heater coil, add thermal control plate accordingly with described heater coil number, control heater coil work separately respectively constitutes the multiple head electromagnetic oven under the control of described control mainboard.
This electromagnetic oven has following shortcoming:
1, complex structure, volume is big, the production cost height, reliability is low.
2, owing to respectively add the big electric current of high frequency that thermal control plate itself is produced, easily peripheral circuit is caused interference, a plurality of burners add between the thermal control plate adjacent very near, and the phase mutual interference is just more serious, and this interference will cause the instability of circuit working, the control difficulty.
3, different frequencies will produce frequency phase inter-modulation between a plurality of burners, and its difference frequency will drop on audiorange, produce serious noise, and environment is polluted.
4, High-frequency Interference superposes mutually between a plurality of burners, causes serious electromagnetic interference, and easily the electrical equipment (as television set, radio) to periphery causes interference, therefore is difficult to optimize on the electromagnetic compatibility index.
The utility model content
The utility model has overcome above-mentioned shortcoming, and the multiple head electromagnetic oven that a kind of simple in structure, circuit working is stable, noise is humble, radio signal interference is little is provided.
The technical scheme in the invention for solving the technical problem is: a kind of multiple head electromagnetic oven, comprise one control mainboard, one add thermal control plate and at least two heater coils, also comprise switch unit, the control signal that described switch unit is accepted described control mainboard is controlled a job in described two heater coils.
Switching device in the described switch unit can be relay, solid-state relay or semiconductor switch device.
Described switch unit can comprise relay and drive triode that the output of described control mainboard is controlled described relay coil by described driving triode and got electric or dead electricity, makes described relay contact switch one that connects in two heater coils.
Relay in the described switch unit can be the single-pole double throw relay, and the common port of described relay contact is connected between two heater coils of series connection, often opens, normal-closed end is connected to described two control ends that add thermal control plate.
Relay in the described switch unit can be the single-pole double throw relay, the common port of described relay contact is connected a described control end that adds thermal control plate, normally closed, normally opened contact connects an end of two heater coils respectively, and the other end of two heater coils all is connected to the described other end that adds thermal control plate.
The control output end of described control mainboard can be connected to a base stage that drives triode, the grounded emitter of described triode, and colelctor electrode is connected and is connected to the forward power end behind the described relay coil.
The utility model is accepted the control signal of described control mainboard by described switch unit, one that controls in described two heater coils gets electric work, only adopt a main circuit board, the watt level of each burner is to switch by the switching device timesharing, distribution according to need, therefore electromagnetism and noise jamming problem have greatly been reduced, avoided two groups to add phase mutual interference between the thermal control plate, power can be regulated size as required automatically, make each burner export certain power respectively, realize all functions of many stoves electromagnetic oven fully.
Description of drawings
Fig. 1 is the control circuit figure of prior art;
Fig. 2 is the control circuit figure of embodiment one in the utility model;
Fig. 3 is the control circuit figure of embodiment two in the utility model.
The specific embodiment
As shown in fig. 1, control circuit figure for a kind of preferred embodiment one in the utility model, comprising a control mainboard, one adds thermal control plate and two heater coil L1, L2, also comprise as relay S1 that switches between described two heater coils of control and driving triode Q1, comprise control single chip computer and its peripheral gauge tap in the described control mainboard, button, display, temperature-sensitive testing circuit etc., by the setting signal that receives the user overall work state of electromagnetic oven is controlled, because described control mainboard can adopt the custom circuit design in the existing electromagnetic oven, repeats no more here.The described thermal control plate that adds also is existing conventional design, and input links to each other with described control mainboard, and described two heater coil L1, L2 series connection is passed through tie point J1, J2 and is connected between described two outputs that add thermal control plate.An input/output terminal of single-chip microcomputer is as the control end to described relay S1 in the described control mainboard, be connected to the base stage of described driving triode Q1, the grounded emitter of described triode Q1, colelctor electrode are connected and are connected to the forward power end behind the described relay S1 coil.Described relay S1 is the single-pole double throw relay, and the common port of relay S1 contact is connected between two heater coil L1, the L2 of series connection, often opens, normal-closed end is connected to described two control ends that add thermal control plate.Send switch-over control signal by the single-chip microcomputer in the described control mainboard, control described triode conducting, described relay is got, the normally opened contact closure, and then one of them heater coil L2 of short circuit, make another coil L1 get electric work, the burner of heater coil L2 correspondence is not worked, at this moment the described whole power transfer that add the thermal control plate generation are on the burner of heater coil L1 correspondence, and the pan on it heats.
Another kind of preferred embodiment of the present utility model as shown in Figure 3, identical with the circuit structure major part of embodiment one, difference only is, the common port of described single-pole double throw relay contact is connected a described control end that adds thermal control plate, normally closed, normally opened contact connects the end of two heater coil L1, L2 respectively, and the other end of two heater coil L1, L2 all is connected to the described other end that adds thermal control plate.Therefore when the described actuating of relay of control, one of them heater coil L2 is opened circuit, another heater coil is connected electricly, realizes identical functions among the embodiment one too.
Owing to be used as the electromagnetic oven of brewing tea, all be that a wing furnace head is made tea as heating up water in use, the high-temperature sterilization of opposite side burner conduct is used, usually the both sides burner can not use simultaneously, but therefore alternation adopts the utility model can realize timesharing switching, distribution according to need, therefore greatly reduce electromagnetism and noise jamming problem, avoided two groups to add phase mutual interference between the thermal control plate.
In addition, it is different sometimes with the required temperature of high-temperature sterilization to make tea owing to heat up water, it is the power difference of required heater coil, therefore, single-chip microcomputer in the described control mainboard, can be according to the heater coil work of opening which side, the thermal control plate that adds that control is corresponding is exported different power, thereby satisfies various user demands.
The utility model can be according to using needs that the duty of each burner is switched arbitrarily, and the watt level that reaches each burner is distributed.Only adopt single mainboard control multiple head electromagnetic oven, operate also very simple, switching device adopts relay, solid-state relay or semiconductor switch device, radio signal interference is little, and owing to only adopt single mainboard, one cover adds thermal control plate, and switching device is stable to its control and switch operating circuit by control circuit.
According to such scheme as can be known, can also be according to what of burner, the number of switching device in increase and decrease burner coil number and the described switch unit, thus satisfy different user demands.
More than multiple head electromagnetic oven provided by the utility model is described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. multiple head electromagnetic oven, it is characterized in that: comprise one control mainboard, one add thermal control plate and at least two heater coils, also comprise switch unit, the control signal that described switch unit is accepted described control mainboard is controlled a job in described two heater coils.
2. multiple head electromagnetic oven according to claim 1 is characterized in that: the switching device in the described switch unit is relay, solid-state relay or semiconductor switch device.
3. multiple head electromagnetic oven according to claim 2, it is characterized in that: described switch unit comprises relay and drives triode, the output of described control mainboard is controlled described relay coil by described driving triode and is got electric or dead electricity, makes described relay contact switch one that connects in two heater coils.
4. multiple head electromagnetic oven according to claim 3, it is characterized in that: the relay in the described switch unit is the single-pole double throw relay, the common port of described relay contact is connected between two heater coils of series connection, often opens, normal-closed end is connected to described two control ends that add thermal control plate.
5. multiple head electromagnetic oven according to claim 3, it is characterized in that: the relay in the described switch unit is the single-pole double throw relay, the common port of described relay contact is connected a described control end that adds thermal control plate, normally closed, normally opened contact connects an end of two heater coils respectively, and the other end of two heater coils all is connected to the described other end that adds thermal control plate.
6. according to claim 3 or 4 or 5 described multiple head electromagnetic ovens, it is characterized in that: the control output end of described control mainboard is connected to a base stage that drives triode, the grounded emitter of described triode, colelctor electrode are connected and are connected to the forward power end behind the described relay coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200030106U CN201014584Y (en) | 2007-01-29 | 2007-01-29 | Multi-stove burner electromagnetic stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200030106U CN201014584Y (en) | 2007-01-29 | 2007-01-29 | Multi-stove burner electromagnetic stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201014584Y true CN201014584Y (en) | 2008-01-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200030106U Expired - Lifetime CN201014584Y (en) | 2007-01-29 | 2007-01-29 | Multi-stove burner electromagnetic stove |
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| Country | Link |
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| CN (1) | CN201014584Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404994A (en) * | 2018-10-30 | 2019-03-01 | 佛山市顺德区金百利家用电器实业有限公司 | Multi-stove burner electromagnetic stove control method, system and multi-stove burner electromagnetic stove |
| CN111322644A (en) * | 2020-01-22 | 2020-06-23 | 中山爱它电器科技有限公司 | Method and device for reducing noise of multi-head induction cooker and computer readable storage medium |
| CN112555925A (en) * | 2021-01-12 | 2021-03-26 | 佛山市顺德区百洛电器有限公司 | Noise reduction method for induction cooker with more than two wire coils |
-
2007
- 2007-01-29 CN CNU2007200030106U patent/CN201014584Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404994A (en) * | 2018-10-30 | 2019-03-01 | 佛山市顺德区金百利家用电器实业有限公司 | Multi-stove burner electromagnetic stove control method, system and multi-stove burner electromagnetic stove |
| CN111322644A (en) * | 2020-01-22 | 2020-06-23 | 中山爱它电器科技有限公司 | Method and device for reducing noise of multi-head induction cooker and computer readable storage medium |
| CN112555925A (en) * | 2021-01-12 | 2021-03-26 | 佛山市顺德区百洛电器有限公司 | Noise reduction method for induction cooker with more than two wire coils |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080130 |