CN204539515U - Electricity cooking pot and control circuit thereof - Google Patents
Electricity cooking pot and control circuit thereof Download PDFInfo
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- CN204539515U CN204539515U CN201520258031.7U CN201520258031U CN204539515U CN 204539515 U CN204539515 U CN 204539515U CN 201520258031 U CN201520258031 U CN 201520258031U CN 204539515 U CN204539515 U CN 204539515U
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Abstract
The utility model discloses a kind of electric cooking pot and control circuit thereof, wherein, control circuit comprises: N number of coil panel module; Power module, power module is connected with N number of coil panel module respectively; N number of power switch, each power switch is connected to form N number of heater with each coil panel module one_to_one corresponding; N number of drive control module, each drive control module is connected to drive each power switch with each power switch one_to_one corresponding, and each drive control module comprises integrated chip, the integrated chip in each drive control module is in order to control corresponding drive control module; Controller, the power switch drive end of controller is connected with N number of drive control module respectively, and N number of switch control terminal of controller is corresponding with the integrated chip in each drive control module to be respectively connected.This electric cooking pot and control circuit thereof, without the need to the operating state adopting the adhesive of relay to control just energy control coil dish, can improve circuit reliability greatly.
Description
Technical field
The utility model relates to electric heating appliance technical field, particularly a kind of control circuit of electric cooking pot and a kind of electric cooking pot with this control circuit.
Background technology
When the products such as electricity cooking pot such as electric cooker, electromagnetic oven, electric pressure cooker adopt the IH computer heating control of multi-thread dish, each coil panel is connected with relay, is carried out the operating state of controller coil panel by control relay adhesive.
But relay exists the problems such as mechanical endurance, thus the reliability of whole control circuit can be caused to reduce, affect the useful life of the products such as electric cooking pot such as electric cooker, electromagnetic oven, electric pressure cooker.
Utility model content
The purpose of this utility model is intended at least solve above-mentioned technological deficiency.
For this reason, an object of the present utility model is the control circuit proposing a kind of electric cooking pot, without the need to the operating state adopting the adhesive of relay to control just energy control coil dish, greatly can improve circuit reliability.
Another object of the present utility model is to propose a kind of electric cooking pot.
For achieving the above object, the control circuit of a kind of electric cooking pot that the utility model proposes on the one hand, comprising: N number of coil panel module, wherein, N be more than or equal to 2 integer; Power module, described power module be connected with described N number of coil panel module respectively with give described N number of coil panel module for power supply; N number of power switch, each power switch in described N number of power switch is connected to form N number of heater with each coil panel module one_to_one corresponding in described N number of coil panel module; N number of drive control module, each drive control module in described N number of drive control module is connected to drive described each power switch with each power switch one_to_one corresponding in described N number of power switch, and described each drive control module comprises integrated chip, the integrated chip in described each drive control module is in order to control corresponding drive control module; Controller, the power switch drive end of described controller is connected with described N number of drive control module respectively, N number of switch control terminal of described controller is corresponding with the integrated chip in described each drive control module to be respectively connected, and described controller exports control signal to control the integrated chip in described each drive control module by each switch control terminal.
According to the control circuit of electric cooking pot of the present utility model, by the switch control terminal output control signal of controller, corresponding control is carried out to the integrated chip in each drive control module and whether carry out work to control each drive control module, the drive control module carrying out work can drive corresponding power switch to carry out work, thus can control the operating state of corresponding coil panel module coil dish.Therefore, the control circuit of electric cooking pot of the present utility model is without the need to adopting relay, thus the operating state adhesive of relay being controlled to just energy control coil disk module coil dish need not be adopted, avoid the reliability that have impact on whole control circuit mechanical endurance of relay, circuit reliability is greatly enhanced, and can extend the useful life of electric cooking pot.
Wherein, when N is 2, described N number of power switch is the first power switch and the second power switch, described N number of drive control module is the first drive control module and the second drive control module, integrated chip in described first drive control module is the first integrated chip, and the integrated chip in described second drive control module is the second integrated chip.
Particularly, described first drive control module also comprises: the first resistance, one end of described first resistance is connected with described power switch drive end, and one end of described first resistance is connected by the second resistance and the first default power supply, the other end of described first resistance is connected with the input of described first integrated chip; 3rd resistance, one end and described first of described 3rd resistance is preset power supply and is connected, and the other end of described 3rd resistance is connected with the power end of described first integrated chip; 4th resistance, described 4th resistance and described 3rd resistor coupled in parallel; 5th resistance, described one end of 5th resistance is connected with the first switch control terminal of described controller, and the other end of described 5th resistance is connected with the control end of described first integrated chip; First electric capacity, one end of described first electric capacity is connected with the other end of described 5th resistance, the other end ground connection of described first electric capacity; 6th resistance, one end of described 6th resistance is connected with the control end of described first power switch, and the other end of described 6th resistance is connected with the output of described first integrated chip; 7th resistance, described 7th resistance and described 6th resistor coupled in parallel.
Further, described first drive control module also comprises the 14 resistance in parallel, the first voltage-stabiliser tube and the 3rd electric capacity.
Wherein, when described controller exports high level signal by described first switch control terminal, described first integrated chip is started working, and described first drive control module normally works, conducting or shutoff under the control of the drive singal that described first power switch exports at described power switch drive end; When described controller is by described first switch control terminal output low level signal, described first integrated chip quits work, and described first drive control module quits work, and described first power switch quits work.
Particularly, described second drive control module also comprises: the 8th resistance, one end of described 8th resistance is connected with described power switch drive end, and one end of described 8th resistance is connected by the second resistance and the first default power supply, the other end of described 8th resistance is connected with the input of described second integrated chip; 9th resistance, one end and described first of described 9th resistance is preset power supply and is connected, and the other end of described 9th resistance is connected with the power end of described second integrated chip; Tenth resistance, described tenth resistance and described 9th resistor coupled in parallel; 11 resistance, described one end of 11 resistance is connected with the second switch control end of described controller, and the other end of described 11 resistance is connected with the control end of described second integrated chip; Second electric capacity, one end of described second electric capacity is connected with the other end of described 11 resistance, the other end ground connection of described second electric capacity; 12 resistance, one end of described 12 resistance is connected with the control end of described second power switch, and the other end of described 12 resistance is connected with the output of described second integrated chip; 13 resistance, described 13 resistance and described 12 resistor coupled in parallel.
Further, described second drive control module also comprises the 15 resistance in parallel, the second voltage-stabiliser tube and the 4th electric capacity.
Wherein, when described controller exports high level signal by described second switch control end, described second integrated chip is started working, and described second drive control module normally works, conducting or shutoff under the control of the drive singal that described second power switch exports at described power switch drive end; When described controller is by described second switch control end output low level signal, described second integrated chip quits work, and described second drive control module quits work, and described second power switch quits work.
In addition, the utility model also proposed a kind of electric cooking pot, and it comprises the control circuit of above-mentioned electric cooking pot.
Electric cooking pot of the present utility model is because its control circuit is without the need to adopting relay, thus the operating state adhesive of relay being controlled to just energy control coil disk module coil dish need not be adopted, avoid the reliability that have impact on whole control circuit mechanical endurance of relay, greatly improve the reliability of circuit, therefore, the useful life of electricity cooking pot also can be extended, and meets the demand of user.
The aspect that the utility model is additional and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
The utility model above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the block diagram of the control circuit of electric cooking pot according to utility model embodiment; And
Fig. 2 is the circuit diagram of the control circuit of electric cooking pot according to a utility model embodiment.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the utility model.In addition, the utility model can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In description of the present utility model, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Describe the control circuit of the electric cooking pot proposed according to the utility model embodiment with reference to the accompanying drawings and there is the electric cooking pot of this control circuit.
Fig. 1 is the block diagram of the control circuit of electric cooking pot according to utility model embodiment.As shown in Figure 1, the control circuit of this electric cooking pot comprises: N number of coil panel module 11,12 ..., 1N, power module 20, N number of power switch 31,32 ..., 3N, N number of drive control module 41,42 ..., 4N, and controller 70.Wherein, N be more than or equal to 2 integer, controller 70 can be MCU, and power switch can be IGBT (Insulated GateBipolar Transistor, insulated gate bipolar transistor).
As shown in Figure 1, power module 20 respectively with N number of coil panel module 11,12 ..., 1N be connected with give N number of coil panel module 11,12 ..., 1N powers, N number of power switch 31,32 ..., each power switch in 3N and N number of coil panel module 11,12 ..., each coil panel module one_to_one corresponding in 1N is connected to form N number of heater such as resonance heater, N number of drive control module 41, 42, each drive control module in 4N and N number of power switch 31, 32, each power switch one_to_one corresponding in 3N is connected to drive each power switch, namely say, each drive control module generates drive singal according to the control signal that controller such as MCU sends and carries out work to drive corresponding power switch such as IGBT, and each drive control module comprises integrated chip and N number of integrated chip U1, U2, UN, integrated chip in each drive control module is in order to control corresponding drive control module, namely when the integrated chip in each drive control module is started working, control corresponding drive control module normally to work, the power switch drive end of controller 70 such as IGBT drive end respectively with N number of drive control module 41,42 ..., 4N be connected, N number of switch control terminal 81 of controller 70,82 ..., 8N respectively corresponding with the integrated chip in each drive control module be connected, controller 70 exports control signal to control the integrated chip in each drive control module by each switch control terminal, to control the whether normal output drive signal of corresponding drive control module, thus realize the operating state controlling corresponding power switch.Wherein, controller 70 by N number of switch control terminal 81,82 ..., 8N export control signal can be low and high level signal, also can be and the corresponding power switch pulse signal that such as IGBT drive singal is synchronous.
According to an embodiment of the present utility model, when N is 2, as shown in Figure 2, N number of coil panel module is the first coil disk module 11 and the second coil panel module 12, N number of power switch is the first power switch 31 such as IGBT1 and the second power switch 32 such as IGBT2, N number of drive control module is the first drive control module 41 and the second drive control module 42, integrated chip in first drive control module 41 is the first integrated chip U1, and the integrated chip in the second drive control module 42 is the second integrated chip U2.
As shown in Figure 2, the first drive control module 41 also comprises: the first resistance R1, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the first electric capacity C1, the 6th resistance R6 and the 7th resistance R7.Wherein, one end of first resistance R1 is connected with power switch drive end such as IGBT drive end, and one end of the first resistance R1 is connected by the default power supply VCC of the second resistance R2 and first, the other end of the first resistance R1 is connected with the input of the first integrated chip U1, one end and first of 3rd resistance R3 is preset power supply VCC and is connected, the other end of the 3rd resistance R3 is connected with the power end of the first integrated chip U1, and the 4th resistance R4 is in parallel with the 3rd resistance R3; One end of 5th resistance R5 is connected with the first switch control terminal 81 such as IGBT1 switch control terminal of controller 70, the other end of the 5th resistance R5 is connected with the control end of the first integrated chip U1, one end of first electric capacity C1 is connected with the other end of the 5th resistance R5, the other end ground connection of the first electric capacity C1, one end of 6th resistance R6 is extremely connected with the G of the control end such as IGBT1 of the first power switch 31, the other end of the 6th resistance R6 is connected with the output of the first integrated chip U1, and the 7th resistance R7 is in parallel with the 6th resistance R6.
Further, as shown in Figure 2, the first drive control module 41 also comprises the 14 resistance R14, the first voltage-stabiliser tube ZD1 in parallel and the 3rd electric capacity C3.
In the present embodiment, as shown in Figure 2, the second drive control module 42 also comprises: the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11 resistance R11, the second electric capacity C2, the 12 resistance R12 and the 13 resistance R13.Wherein, one end of 8th resistance R8 is connected with power switch drive end such as IGBT drive end, and one end of the 8th resistance R8 is connected by the default power supply VCC of the second resistance R2 and first, the other end of the 8th resistance R1 is connected with the input of the second integrated chip U2, one end and first of 9th resistance R9 is preset power supply VCC and is connected, the other end of the 9th resistance R9 is connected with the power end of the second integrated chip U2, and the tenth resistance R10 is in parallel with the 9th resistance R9; One end of 11 resistance R11 is connected with the second switch control end 82 of controller 70 such as IGBT2 switch control terminal, the other end of the 11 resistance R11 is connected with the control end of the second integrated chip U2, one end of second electric capacity C2 is connected with the other end of the 11 resistance R11, the other end ground connection of the second electric capacity C2, one end of 12 resistance R12 is extremely connected with the G of the control end such as IGBT2 of the second power switch 32, the other end of the 12 resistance R12 is connected with the output of the second integrated chip U2, and the 13 resistance R13 is in parallel with the 12 resistance R12.
Further, as shown in Figure 2, the second drive control module 42 also comprises the 15 resistance R15, the second voltage-stabiliser tube ZD2 in parallel and the 4th electric capacity C4.
According to an embodiment of the present utility model, wherein, when controller 70 is by the first switch control terminal such as IGBT1 switch control terminal output high level signal, first integrated chip U1 starts working, the normal work of first drive control module 41 and normal output drive signal, the first power switch 31 such as IGBT1 conducting or shutoff under the control of the power switch drive end such as drive singal of IGBT drive end output; When controller 70 is by the first switch control terminal such as IGBT1 switch control terminal output low level signal, the first integrated chip U1 quits work, and the first drive control module 41 quits work, and the first power switch 31 such as IGBT1 quits work.
Similarly, according to another embodiment of the present utility model, wherein, when controller 70 is by second switch control end such as IGBT2 switch control terminal output high level signal, second integrated chip U2 starts working, the normal work of second drive control module 42 and normal output drive signal, the second power switch 32 such as IGBT2 conducting or shutoff under the control of the power switch drive end such as drive singal of IGBT drive end output; When controller 70 is by second switch control end such as IGBT2 switch control terminal output low level signal, the second integrated chip U2 quits work, and the second drive control module 42 quits work, and the second power switch 32 such as IGBT2 quits work.
According in a concrete example of the present utility model, the control signal that controller 70 such as MCU is exported by the first switch control terminal such as IGBT1 switch control terminal and can be contrary by the second switch control end control logic of control signal that such as IGBT2 switch control terminal exports, namely when by the first switch control terminal, such as IGBT1 switch control terminal exports high level signal, by second switch control end such as IGBT2 switch control terminal output low level signal, during by the first switch control terminal such as IGBT1 switch control terminal output low level signal, high level signal is exported by second switch control end such as IGBT2 switch control terminal.
In sum, the control circuit of the electric cooking pot of the utility model embodiment controls drive singal whether be applied to power switch such as IGBT by being arranged in series an integrated chip on drive circuit, thus control the operating state of power switch such as IGBT, realize the operating state of control coil disk module coil dish, the operating state therefore without the need to adopting the adhesive of relay to control just energy control coil dish.
According to the control circuit of the electric cooking pot of the utility model embodiment, by the switch control terminal output control signal of controller, corresponding control is carried out to the integrated chip in each drive control module and whether carry out work to control each drive control module, the drive control module carrying out work can drive corresponding power switch to carry out work, thus can control the operating state of corresponding coil panel module coil dish.Therefore, the control circuit of electric cooking pot of the present utility model is without the need to adopting relay, thus the operating state adhesive of relay being controlled to just energy control coil disk module coil dish need not be adopted, avoid the reliability that have impact on whole control circuit mechanical endurance of relay, circuit reliability is greatly enhanced, and can extend the useful life of electric cooking pot.
In addition, the utility model embodiment also proposed a kind of electric cooking pot, and it comprises the control circuit of above-mentioned electric cooking pot.Wherein, this electric cooking pot can be the household appliances such as electric cooker, electromagnetic oven, electric pressure cooker.
The electric cooking pot of the utility model embodiment is because its control circuit is without the need to adopting relay, thus the operating state adhesive of relay being controlled to just energy control coil disk module coil dish need not be adopted, avoid the reliability that have impact on whole control circuit mechanical endurance of relay, greatly improve the reliability of circuit, therefore, the useful life of electricity cooking pot also can be extended, and meets the demand of user.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, scope of the present utility model is by claims and equivalency thereof.
Claims (9)
1. a control circuit for electric cooking pot, is characterized in that, comprising:
N number of coil panel module, wherein, N be more than or equal to 2 integer;
Power module, described power module be connected with described N number of coil panel module respectively with give described N number of coil panel module for power supply;
N number of power switch, each power switch in described N number of power switch is connected to form N number of heater with each coil panel module one_to_one corresponding in described N number of coil panel module;
N number of drive control module, each drive control module in described N number of drive control module is connected to drive described each power switch with each power switch one_to_one corresponding in described N number of power switch, and described each drive control module comprises integrated chip, the integrated chip in described each drive control module is in order to control corresponding drive control module;
Controller, the power switch drive end of described controller is connected with described N number of drive control module respectively, N number of switch control terminal of described controller is corresponding with the integrated chip in described each drive control module to be respectively connected, and described controller exports control signal to control the integrated chip in described each drive control module by each switch control terminal.
2. the control circuit of electric cooking pot as claimed in claim 1, it is characterized in that, when N is 2, described N number of power switch is the first power switch and the second power switch, described N number of drive control module is the first drive control module and the second drive control module, integrated chip in described first drive control module is the first integrated chip, and the integrated chip in described second drive control module is the second integrated chip.
3. the control circuit of electric cooking pot as claimed in claim 2, is characterized in that, described first drive control module also comprises:
First resistance, one end of described first resistance is connected with described power switch drive end, and one end of described first resistance is connected by the second resistance and the first default power supply, and the other end of described first resistance is connected with the input of described first integrated chip;
3rd resistance, one end and described first of described 3rd resistance is preset power supply and is connected, and the other end of described 3rd resistance is connected with the power end of described first integrated chip;
4th resistance, described 4th resistance and described 3rd resistor coupled in parallel;
5th resistance, described one end of 5th resistance is connected with the first switch control terminal of described controller, and the other end of described 5th resistance is connected with the control end of described first integrated chip;
First electric capacity, one end of described first electric capacity is connected with the other end of described 5th resistance, the other end ground connection of described first electric capacity;
6th resistance, one end of described 6th resistance is connected with the control end of described first power switch, and the other end of described 6th resistance is connected with the output of described first integrated chip;
7th resistance, described 7th resistance and described 6th resistor coupled in parallel.
4. the control circuit of electric cooking pot as claimed in claim 2, is characterized in that, described second drive control module also comprises:
8th resistance, one end of described 8th resistance is connected with described power switch drive end, and one end of described 8th resistance is connected by the second resistance and the first default power supply, and the other end of described 8th resistance is connected with the input of described second integrated chip;
9th resistance, one end and described first of described 9th resistance is preset power supply and is connected, and the other end of described 9th resistance is connected with the power end of described second integrated chip;
Tenth resistance, described tenth resistance and described 9th resistor coupled in parallel;
11 resistance, described one end of 11 resistance is connected with the second switch control end of described controller, and the other end of described 11 resistance is connected with the control end of described second integrated chip;
Second electric capacity, one end of described second electric capacity is connected with the other end of described 11 resistance, the other end ground connection of described second electric capacity;
12 resistance, one end of described 12 resistance is connected with the control end of described second power switch, and the other end of described 12 resistance is connected with the output of described second integrated chip;
13 resistance, described 13 resistance and described 12 resistor coupled in parallel.
5. the control circuit of electric cooking pot as claimed in claim 3, is characterized in that, described first drive control module also comprises the 14 resistance in parallel, the first voltage-stabiliser tube and the 3rd electric capacity.
6. the control circuit of electric cooking pot as claimed in claim 4, is characterized in that, described second drive control module also comprises the 15 resistance in parallel, the second voltage-stabiliser tube and the 4th electric capacity.
7. the control circuit of electric cooking pot as claimed in claim 3, is characterized in that, wherein,
When described controller exports high level signal by described first switch control terminal, described first integrated chip is started working, described first drive control module normally works, conducting or shutoff under the control of the drive singal that described first power switch exports at described power switch drive end;
When described controller is by described first switch control terminal output low level signal, described first integrated chip quits work, and described first drive control module quits work, and described first power switch quits work.
8. the control circuit of electric cooking pot as claimed in claim 4, is characterized in that, wherein,
When described controller exports high level signal by described second switch control end, described second integrated chip is started working, described second drive control module normally works, conducting or shutoff under the control of the drive singal that described second power switch exports at described power switch drive end;
When described controller is by described second switch control end output low level signal, described second integrated chip quits work, and described second drive control module quits work, and described second power switch quits work.
9. an electric cooking pot, is characterized in that, comprises the control circuit of the electric cooking pot according to any one of claim 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520258031.7U CN204539515U (en) | 2015-04-24 | 2015-04-24 | Electricity cooking pot and control circuit thereof |
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| CN201520258031.7U CN204539515U (en) | 2015-04-24 | 2015-04-24 | Electricity cooking pot and control circuit thereof |
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| CN204539515U true CN204539515U (en) | 2015-08-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162972A (en) * | 2015-04-24 | 2016-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Electricity cooking pot and control circuit thereof |
| CN107027205A (en) * | 2016-02-02 | 2017-08-08 | 佛山市顺德区美的电热电器制造有限公司 | The drive circuit of power switch pipe in electromagnetic heater and electromagnetic heater |
-
2015
- 2015-04-24 CN CN201520258031.7U patent/CN204539515U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106162972A (en) * | 2015-04-24 | 2016-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Electricity cooking pot and control circuit thereof |
| CN107027205A (en) * | 2016-02-02 | 2017-08-08 | 佛山市顺德区美的电热电器制造有限公司 | The drive circuit of power switch pipe in electromagnetic heater and electromagnetic heater |
| CN107027205B (en) * | 2016-02-02 | 2022-12-06 | 佛山市顺德区美的电热电器制造有限公司 | Electromagnetic heating device and driving circuit of power switch tube in electromagnetic heating device |
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