CN208821109U - A kind of multi-functional electric caldron control device - Google Patents
A kind of multi-functional electric caldron control device Download PDFInfo
- Publication number
- CN208821109U CN208821109U CN201821196270.4U CN201821196270U CN208821109U CN 208821109 U CN208821109 U CN 208821109U CN 201821196270 U CN201821196270 U CN 201821196270U CN 208821109 U CN208821109 U CN 208821109U
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- silicon
- control device
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- mcu
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Abstract
The utility model embodiment discloses a kind of multi-functional electric caldron control device, including heating device, temperature control device, zero cross detection circuit, silicon-controlled, thyristor gating circuit, MCU, the temperature control device, silicon-controlled is sequentially connected in series access AC power source at heating device, the test side of the zero cross detection circuit is connected to the heating device, at silicon-controlled tie point, the MCU is electrically connected with the zero cross detection circuit, and the silicon-controlled control terminal is connect by thyristor gating circuit with the output end of the MCU.Using the utility model, the dry combustion method phenomenon repeatedly of electric caldron is effectively prevented, security risk is eliminated, and by voltage detecting according to voltage levels situation, adjustment culinary art heating time and power, while periodic monitor voltage change situation during heating realize invariable power monitoring.
Description
Technical field
The utility model relates to a kind of heating control apparatus of small household appliance more particularly to a kind of multi-functional electric caldrons
Control device.
Background technique
In existing cookware heating control circuit, mostly using mechanical switch control power and timing, due to it is different when
Between section and different zones input voltage fluctuation, cause cook effect it is bad, influence food taste.Furthermore it is needed in heating process
To dryout, dangerous heating behavior that is burnt or burning controls, and the prior art in order to solve the technical problem using
It is switched using mechanical temperature-control, and it haves the defects that dry combustion method repeatedly, if not in place to the defect protection of the dry combustion method repeatedly, still
There are security risks.
Utility model content
The technical problem to be solved by the embodiment of the utility model is, providing a kind of multi-functional electric caldron control device.
Can the problem of dry combustion method repeatedly to electric caldron prevented.
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of multi-functional electric caldron control device,
Including heating device, temperature control device, zero cross detection circuit, silicon-controlled, thyristor gating circuit, MCU, the temperature control device adds
Thermal, it is silicon-controlled be sequentially connected in series access AC power source, the test side of the zero cross detection circuit be connected to the heating device,
At silicon-controlled tie point, the MCU is electrically connected with the zero cross detection circuit, and the silicon-controlled control terminal passes through silicon-controlled
Trigger circuit is connect with the output end of the MCU.
It further, further include voltage detecting circuit, the test side of the voltage detecting circuit is connected to the heating dress
It sets, at silicon-controlled tie point, the MCU is connect with the voltage detecting circuit.
Further, the zero cross detection circuit includes triode, and the triode connects the heating by resistance
At device, silicon-controlled tie point.
Further, the voltage detecting circuit includes diode and sampling resistor and divider resistance.
Further, the thyristor gating circuit includes current-limiting resistance and is connected to the SCR control end
Pull down resistor.
Implement the utility model embodiment, has the following beneficial effects: that the utility model has effectively prevented electric caldron
Dry combustion method phenomenon repeatedly, eliminates security risk, and by voltage detecting according to voltage levels situation, adjustment culinary art heating time and
Power, while periodic monitor voltage change situation during heating realize invariable power monitoring.
Detailed description of the invention
Fig. 1 is the integrated circuit structural schematic diagram of the utility model.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
Electrical block diagram shown in referring to Fig.1.
A kind of multi-functional electric caldron control device of the utility model embodiment, including heating device R3, temperature control device K1,
Zero cross detection circuit 1, silicon-controlled D2, thyristor gating circuit 3, MCU4, voltage detecting circuit 2.
Temperature control device K1 and heating device R3, and alternating current source is connected to after connecting with silicon-controlled D2, control terminal passes through
Thyristor gating circuit 3 controls silicon-controlled switch state.
Zero cross detection circuit 1 includes triode Q1 and resistance R1, R2, and the base stage of triode Q1 is connected to by resistance R2
The junction (A point) of heating device R3 and silicon-controlled D2, for detecting the on off operating mode of temperature control device K1, zero cross detection circuit will
The on-off signal detected is transmitted to the signal processing that MCU circuit 4 does zero passage detection.Also as dry while detecting zero cross signal
The input of signal is burnt, temperature control device K1 is in closed state in the case where being not above temperature, can normally detect at A point at this time
To zero cross signal, when temperature controller is more than that temperature disconnects, A point can lose voltage, and zero cross signal is abnormal, and MCU circuit 4 is according to this
Situation may determine that temperature controller disconnects (pot body excess temperature), detect the letter that effective temperature control device K1 is disconnected during heating
Number, i.e., expression heating device is in dry combustion method guard mode, and MCU circuit 4 can close power device, disconnects heating equipment R3 and supplies
Electricity is no longer heated, or is reduced and added power that heating device 3 is made to be in keeping warm mode, while can also make and mention accordingly
It wakes up.To effectively prevent temperature control device K1 with kettle temperature variation turn off repeatedly, cause heating device R3 repeatedly dry combustion method the case where,
Greatly reduce security risk.
Thyristor gating circuit includes the current-limiting resistance R6 and pull down resistor R7 for being connected to the SCR control end.
In the present embodiment, also may be selected include voltage detecting circuit 2, voltage detecting circuit 2 include diode D1 and
Sampling resistor R4 and divider resistance R5.Sampling resistor R4 is connected at A by diode D1, is done primary voltage in booting and is sentenced
It is disconnected, and according to voltage levels situation, heating time and power, while periodic monitor voltage change during heating are cooked in adjustment
Situation, the realization invariable power by controlling silicon-controlled D2 monitor.
The circuit structure of the utility model has the further advantage that circuit and the connection of heating equipment R3 only need three electricity
Line: firewire, zero curve, ground wire, completely compatible with existing connection type, the circuit of detection part is all mounted on a circuit board
On, it is not required to additionally increase other control detection leads, does not increase wire rod Material Cost, simplify circuit and employee is facilitated to assemble raising life
Efficiency is produced, the practical popularization and application of this patent are conducive to.
Certainly the above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with this
The people of technology can understand the content of the utility model and implement accordingly, and the protection model of the utility model can not be limited with this
It encloses.Any modifications made in accordance with the spirit of the main technical solutions of the utility model should all cover the guarantor in the utility model
Within the scope of shield.
Claims (5)
1. a kind of multi-functional electric caldron control device, which is characterized in that including heating device, temperature control device, zero cross detection circuit,
Silicon-controlled, thyristor gating circuit, MCU, the temperature control device, silicon-controlled are sequentially connected in series access AC power source, institute at heating device
The test side for stating zero cross detection circuit is connected to the heating device, at silicon-controlled tie point, and the MCU and the zero passage are examined
Slowdown monitoring circuit electrical connection, the silicon-controlled control terminal are connect by thyristor gating circuit with the output end of the MCU.
2. multi-functional electric caldron control device according to claim 1, which is characterized in that it further include voltage detecting circuit,
The test side of the voltage detecting circuit is connected to the heating device, at silicon-controlled tie point, the MCU and the voltage
Detection circuit connection.
3. multi-functional electric caldron control device according to claim 2, which is characterized in that the zero cross detection circuit includes
Triode, the triode connect the heating device by resistance, at silicon-controlled tie point.
4. multi-functional electric caldron control device according to claim 2, which is characterized in that the voltage detecting circuit includes
Diode and sampling resistor and divider resistance.
5. multi-functional electric caldron control device according to claim 1-4, which is characterized in that the silicon-controlled touching
Power Generation Road includes current-limiting resistance and the pull down resistor for being connected to the SCR control end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196270.4U CN208821109U (en) | 2018-07-26 | 2018-07-26 | A kind of multi-functional electric caldron control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196270.4U CN208821109U (en) | 2018-07-26 | 2018-07-26 | A kind of multi-functional electric caldron control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208821109U true CN208821109U (en) | 2019-05-03 |
Family
ID=66271604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821196270.4U Expired - Fee Related CN208821109U (en) | 2018-07-26 | 2018-07-26 | A kind of multi-functional electric caldron control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208821109U (en) |
-
2018
- 2018-07-26 CN CN201821196270.4U patent/CN208821109U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20200726 |