CN210717697U - Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove - Google Patents
Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove Download PDFInfo
- Publication number
- CN210717697U CN210717697U CN201921131936.2U CN201921131936U CN210717697U CN 210717697 U CN210717697 U CN 210717697U CN 201921131936 U CN201921131936 U CN 201921131936U CN 210717697 U CN210717697 U CN 210717697U
- Authority
- CN
- China
- Prior art keywords
- chip
- pin
- module
- capacitor
- resistor
- 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.)
- Active
Links
- 230000002265 prevention Effects 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000009841 combustion method Methods 0.000 claims abstract description 13
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 50
- 238000004146 energy storage Methods 0.000 claims description 17
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010411 cooking Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a prevent dry combustion method control system and prevent dry combustion method cooking utensils based on single coil solenoid valve realizes the reliable closing of solenoid valve through monitoring battery voltage, and it includes negative voltage power module, the power module that steps up, battery voltage detection module, single coil solenoid electric module and MCU, negative voltage power module provides the suction valve power for the single coil solenoid valve in the single coil solenoid electric module, the power module that steps up provides the power and one-way charges to the single coil solenoid electric module for MCU, battery voltage detection module passes through MCU right battery voltage samples. The utility model discloses at first through battery voltage detection module monitoring battery voltage, later according to the battery voltage of monitoring, through the actuation of single coil solenoid electric valve user of single coil solenoid electric module drive, reach actuation current unchangeable; and the voltage-stabilizing output of the valve-closing voltage is realized through the single-coil electromagnetic control module, and the stability of the dry burning prevention function of the battery at low voltage is improved.
Description
Technical Field
The utility model belongs to the technical field of prevent dry combustion method cooking utensils, concretely relates to prevent dry combustion method control system and prevent dry combustion method cooking utensils based on single coil solenoid valve.
Background
The stove with dry burning prevention function powered by dry battery at present is mainly realized based on a double-coil electromagnetic valve and a thermocouple, and the principle is as follows: when the dry burning protection condition is met, current in the direction opposite to that of the attraction maintaining current is added into the secondary coil, and the main coil generates reverse current through a magnetic field to separate the valve body, but the scheme needs to use a double-coil electromagnetic valve, and a thermocouple also needs to be correspondingly matched, so that the realization cost is higher; in addition, when the battery is in a low voltage condition, the internal resistance of the battery becomes large, the reverse valve closing current is reduced, and the reliability of dry burning prevention protection is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a prevent dry combustion method control system based on single coil solenoid valve has guaranteed the reliability of preventing dry combustion method protection in reduce cost.
The utility model also aims to provide an anti-dry-burning cooking stove.
The technical proposal adopted by the utility model is that,
the utility model provides a prevent dry combustion method control system based on single coil solenoid valve, realizes reliably closing of solenoid valve through monitoring battery voltage, and it includes negative voltage power module, the power module that steps up, battery voltage detection module, single coil solenoid electric module and MCU, negative voltage power module provides the suction valve power for the single coil solenoid valve in the single coil solenoid electric module, the power module that steps up provides the power and one-way charges to single coil solenoid electric module for MCU, battery voltage detection module is right through MCU the battery voltage is sampled.
Preferably, the single-coil electromagnetic control module comprises an energy storage unit formed by a forty-sixth resistor R46, a twelfth polar tube D10 and an energy storage capacitor EC10 which are connected in series, and the boost power supply module performs unidirectional charging on the energy storage capacitor EC10 through the forty-sixth resistor R46 and the twelfth polar tube D10, so as to realize the stabilization of the voltage of the closed electromagnetic valve.
Preferably, the single-coil electromagnetic control module further includes an eleventh transistor Q11, a base of the eleventh transistor Q11 is connected to a third resistor R3, an emitter of the eleventh transistor Q11 is grounded, a collector of the eleventh transistor Q11 is connected to a base of a twelfth transistor Q12 through a twelfth resistor R12, an emitter of the twelfth transistor Q12 is connected to VCC, a collector of the twelfth transistor Q12 is connected to an eleventh resistor R11 through an eighth resistor R8, the other one is connected to a base of a sixteenth transistor Q16, an emitter of the sixteenth transistor Q16 is connected to-3V, a collector of the sixteenth transistor Q16 is connected to a resistor bridge, one path of the resistor bridge is grounded through a single-coil electromagnetic VALVE1, the other path is connected to a drain of a fifteenth MOS transistor Q15, a gate of the fifteenth transistor Q15 is connected to a collector of a seventeenth transistor Q17 through a second resistor R2, the other path is connected with-3V in common through a twenty-seventh resistor R27, a first diode ZD1, a second diode ZD2 and an emitter of a sixteenth triode, and a source of a fifteenth MOS tube Q15 is connected with the energy storage unit.
Preferably, the negative voltage power module includes a sixth chip IC6, the second pin of the sixth chip IC6 is connected to 3V, the fifth pin of the sixth chip IC6 is connected to a twelfth resistor R42, the third pin of the sixth chip IC6 is connected to the sixth pin of the sixth chip IC6 through a twenty-first capacitor C21, the first pin of the sixth chip IC6 is connected to-3V, and the other path is connected to ground through a thirteenth capacitor C13.
Preferably, the boost power supply module includes a third chip U3, a VL pin of the third chip U3 is connected to a VT pin of the third chip U3 through an eighth diode D8, the other VL pin is connected to a first capacitor EC1 through a first inductor L1, the first capacitor EC1 and a fourteenth capacitor C14 are connected in parallel, a second capacitor EC2, a sixth capacitor C6 and an eleventh capacitor C11 are arranged between the GND pin and the VT pin of the third chip U3 in parallel, and after the second capacitor EC2, the sixth capacitor C6 and the eleventh capacitor C11 are connected in parallel, one end of the second capacitor EC2, the sixth capacitor C6 and the eleventh capacitor C11 are connected to ground, and the other end of the second capacitor is connected to VCC.
Preferably, the battery voltage detection module comprises a voltage division circuit consisting of a thirty-fourth resistor R34 and a thirty-fifth resistor R35, and an output end of the voltage division circuit is connected with the MCU.
Preferably, the MCU includes a first chip IC1, the first pin of the first chip IC1 is grounded, the second pin is connected to VCC, an eighteenth capacitor C18 is provided between the first pin and the second pin, the fourteenth pin of the first chip IC1 is connected to the battery voltage detection module, and the ninth pin and the tenth pin of the first chip IC1 are connected to the bases of the eleventh triode Q11 and the seventeenth triode Q17 of the single-coil electromagnetic control module, respectively.
Preferably, the model number of the third chip U3 is ME 2180.
Preferably, the model of the first chip IC1 is GPM8F3708B
The dry-burning prevention stove is characterized by comprising the dry-burning prevention control system based on the single-coil electromagnetic valve and a stove body, wherein the dry-burning prevention control system is arranged in the stove body.
Compared with the prior art, the utility model firstly monitors the battery voltage through the battery voltage detection module, and then drives the single-coil electromagnetic valve user to attract through the single-coil electromagnetic control module according to the monitored battery voltage, so as to achieve the purpose that the attracting current is unchanged; and the voltage-stabilizing output of the valve-closing voltage is realized through the single-coil electromagnetic control module, and the stability of the dry burning prevention function of the battery at low voltage is improved.
Drawings
Fig. 1 is a system block diagram of an anti-dry heating control system based on a single coil solenoid valve according to embodiment 1 of the present invention;
fig. 2 is a circuit diagram of a single-coil electromagnetic control module in an anti-dry heating control system based on a single-coil electromagnetic valve according to embodiment 1 of the present invention;
fig. 3 is a circuit diagram of a negative voltage power supply module in an anti-dry heating control system based on a single coil solenoid valve according to embodiment 1 of the present invention;
fig. 4 is a circuit diagram of a boosting power module in an anti-dry heating control system based on a single-coil solenoid valve according to embodiment 1 of the present invention;
fig. 5 is a circuit diagram of a battery voltage detection module in an anti-dry heating control system based on a single coil solenoid valve according to embodiment 1 of the present invention;
fig. 6 is a circuit diagram of an MCU in an anti-dry heating control system based on a single coil solenoid valve according to embodiment 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment 1 of the utility model provides a dry combustion method control system based on single coil solenoid valve realizes the reliable closing of solenoid valve through monitoring battery voltage, and the concrete structure is as shown in fig. 1, and it includes negative voltage power module 1, booster power module 2, battery voltage detection module 3, single coil electromagnetic control module 4 and MCU 5;
in the above modules, the input terminal of the negative voltage power module 1 is connected with a battery, outputs about-3V of direct current voltage, and provides a suction valve power supply for the single coil solenoid valve in the single coil solenoid control module 4;
the input end of the boosting power supply module 2 is connected with a battery, and is used for providing power for the MCU5 and unidirectionally charging the single-coil electromagnetic control module 4;
the battery voltage detection module 3 samples the battery voltage through the MCU 5.
Therefore, firstly, the MCU5 monitors the battery voltage through the battery voltage detection module 3, and then drives the single-coil solenoid valve user to pull in through the single-coil solenoid control module 4 according to the monitored battery voltage, so as to achieve a constant pull-in current; and the voltage-stabilizing output of the valve-closing voltage is realized through the single-coil electromagnetic control module 4, and the stability of the dry burning prevention function of the battery at low voltage is improved.
As shown in fig. 2, the single-coil solenoid control module 4 comprises an energy storage unit formed by a forty-sixth resistor R46, a twelfth pole tube D10 and an energy storage capacitor EC10 connected in series;
in this way, the boost power module 2 charges the energy storage capacitor EC10 in a single direction through the sixteenth resistor R46 and the twelfth diode D10, so as to stabilize the voltage of the closed solenoid valve.
The single-coil electromagnetic control module 4 further comprises an eleventh triode Q11, a base of the eleventh triode Q11 is connected with a third resistor R3, an emitter of the eleventh triode Q11 is grounded, a collector of the eleventh triode Q11 is connected with a base of a twelfth triode Q12 through a twelfth resistor R12, an emitter of the twelfth triode Q12 is connected with VCC, a collector of the twelfth triode Q12 is connected with an eleventh resistor R11 through an eighth resistor R8, the other path is connected with a base of a sixteenth triode Q16, an emitter of the sixteenth triode Q16 is connected with-3V, a collector of the sixteenth triode Q16 is connected with a resistor bridge, one path of the resistor bridge is grounded through a single-coil solenoid VALVE1, the other path is connected with a drain of a fifteenth MOS Q15, one path of a gate of the fifteenth MOS Q15 is connected with a collector of a seventeenth triode Q17 through a second resistor R2, the other path is connected with-3V together with an emitter of a sixteenth triode through a twenty-seventh resistor R27, a first diode ZD1, a second diode ZD2 and an energy storage unit, and a source of a fifteenth MOS tube Q15 is connected with the energy storage unit;
the models of the eleventh triode Q11, the twelfth triode Q12, the sixteenth triode Q16 and the seventeenth triode Q17 are SS 8550; the model of the fifteenth MOS transistor Q15 is 3401A.
As shown in fig. 3, the negative voltage power module 1 includes a sixth chip IC6, a second pin of the sixth chip IC6 is connected to 3V, a fifth pin of the sixth chip IC6 is connected to a twelfth resistor R42, a third pin of the sixth chip IC6 is connected to a sixth pin of a sixth chip IC6 through a twenty-first capacitor C21, a first pin of the sixth chip IC6 is connected to-3V, and the other path is connected to ground through a thirteenth capacitor C13;
the model of the sixth chip IC6 is SGM 3204.
As shown in fig. 4, the boost power supply module 2 includes a third chip U3, one path of the VL pin of the third chip U3 is connected with the VT pin of the third chip U3 through an eighth diode D8, the other path is connected with a first capacitor EC1 through a first inductor L1, the first capacitor EC1 is connected in parallel with a fourteenth capacitor C14, a second capacitor EC2, a sixth capacitor C6 and an eleventh capacitor C11 are arranged in parallel between the GND pin and the VT pin of the third chip U3, one end of the second capacitor EC2, the sixth capacitor C6 and the eleventh capacitor C11 are connected in parallel and then are grounded, and the other end is connected to VCC;
the model of the third chip U3 is ME 2180.
As shown in fig. 5, the battery voltage detection module 3 includes a voltage divider circuit formed by a thirty-fourth resistor R34 and a thirty-fifth resistor R35, and an output terminal of the voltage divider circuit is connected to the MCU 5.
As shown in fig. 6, the MCU5 includes a first chip IC1, the first pin of the first chip IC1 is grounded, the second pin is connected to VCC, an eighteenth capacitor C18 is disposed between the first pin and the second pin, the fourteenth pin of the first chip IC1 is connected to the battery voltage detection module 3, and the ninth pin and the tenth pin of the first chip IC1 are connected to the bases of the eleventh triode Q11 and the seventeenth triode Q17 of the single-coil electromagnetic control module 4, respectively.
The model of the first chip IC1 is GPM8F 3708B.
Working principle of the single-coil solenoid VALVE VALVE 1:
when the VALVE is sucked, the MCU5 maintains a high level output for a certain time T1, so that the eleventh triode Q11, the twelfth triode Q12 and the sixteenth triode Q16 are conducted, a potential difference generated from the ground wire to-3V forms a VALVE sucking current in the electromagnetic VALVE VALVE1, the direction of the current is the same as that of the maintaining current generated by the thermocouple, and the VALVE VALVE1 is attracted by a magnet; meanwhile, the battery voltage detection module 3 detects the battery loading voltage at the moment through the MCU 5;
after the time T1 is over, the MCU5 converts the original high level output into a PWM pulse signal according to the detected battery load voltage and maintains the PWM pulse signal for a certain time T2, specifically, the higher the voltage is, the lower the PWM duty ratio is, otherwise, the higher the PWM duty ratio is, so that the current of the suction valve can be basically maintained, and the purpose of saving electricity is achieved;
after the time T2 expires, the MCU5 outputs a low level, the eleventh transistor Q11, the twelfth transistor Q12 and the sixteenth transistor Q16 are turned off, and the solenoid VALVE1 is pulled in by the electromotive force of the thermocouple.
When the valve is closed, the stabilized voltage output by the boosting power supply circuit 2 charges the energy storage capacitor EC10 in a single direction through the sixteenth resistor R46 and the twelfth polar tube D10, the stabilized voltage does not drop along with the voltage drop of the battery, and the energy of closing the valve every time is ensured to be the same;
when the MCU5 detects that the cookware meets the dry-burning condition, the MCU5 outputs high level and is conducted by using a fifteenth triode Q15 and a seventeenth triode Q17, the energy storage capacitor EC10 releases large current to the solenoid VALVE VALVE1 through an eighteenth resistor R18 and a nineteenth resistor R19, the current direction is opposite to the direction of maintaining current generated by the thermocouple, the solenoid VALVE VALVE1 is closed under the action of self spring and electromagnetic stress, and the dry-burning prevention function is realized.
In addition, the larger the capacitance of the energy storage capacitor EC10, the more electrical energy can be stored.
According to the embodiment, firstly, the battery voltage is monitored through the battery voltage detection module, and then the single-coil electromagnetic valve user is driven to attract in a pulse width adjusting mode according to the monitored battery voltage, so that the attracting current is unchanged; and the voltage-stabilizing output of the valve-closing voltage is realized through the single-coil electromagnetic control module, and the stability of the dry burning prevention function of the battery at low voltage is improved.
Example 2
The embodiment 2 of the utility model provides a prevent dry combustion method cooking utensils, it includes the dry combustion method control system and the cooking utensils body based on the single coil solenoid valve of embodiment 1, prevent dry combustion method control system setting at the cooking utensils body internally.
On a cooker with a dry-burning prevention function powered by a dry battery, the electromagnetic valve can be kept in a suction state by the maintaining current generated by the thermocouple, and when the MCU5 detects the dry-burning condition of the cooker, the electromagnetic valve can be closed by applying a current with the direction opposite to the direction of the maintaining current generated by the thermocouple; because the single coil solenoid valve and the thermocouple are in parallel relation, the applied reverse current can shunt a great part to the thermocouple, so that the current actually used for closing the valve is greatly reduced, if the battery directly outputs the reverse current, when the voltage of the battery is lower, the internal resistance is increased, and the reverse current cannot ensure reliable valve closing. Therefore, the problem that the valve cannot be reliably closed due to low battery voltage is solved by adopting the boosting and energy storage capacitor mode, and the problem that the electromagnetic valve cannot be reliably closed due to low battery voltage of the dry-burning-preventing stove is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a prevent dry combustion method control system based on single coil solenoid valve, its characterized in that realizes reliably closing of solenoid valve through monitoring battery voltage, and it includes negative voltage power module (1), power module (2) that steps up, battery voltage detection module (3), single coil solenoid electric module (4) and MCU (5), negative voltage power module (1) provides the valve power of inhaling for the single coil solenoid valve in single coil solenoid electric module (4), power module (2) that steps up charges for MCU (5) provides power and one-way single coil solenoid electric module (4), battery voltage detection module (3) are right through MCU (5) battery voltage samples.
2. The dry-burning prevention control system based on the single-coil solenoid valve as claimed in claim 1, characterized in that the single-coil solenoid control module (4) comprises an energy storage unit formed by a forty-sixth resistor R46, a twelfth polar tube D10 and an energy storage capacitor EC10 which are connected in series, and the boosting power supply module (2) realizes the stabilization of the voltage of the closed solenoid valve by unidirectionally charging the energy storage capacitor EC10 through the forty-sixth resistor R46 and the twelfth polar tube D10.
3. The control system of claim 2, wherein the single-coil solenoid control module (4) further comprises an eleventh transistor Q11, the base of the eleventh transistor Q11 is connected to a third resistor R3, the emitter of the eleventh transistor Q11 is grounded, the collector of the eleventh transistor Q11 is connected to the base of a twelfth transistor Q12 through a twelfth resistor R12, the emitter of the twelfth transistor Q12 is connected to VCC, the collector of the twelfth transistor Q12 is connected to an eleventh resistor R11 through an eighth resistor R8, the other is connected to the base of a sixteenth transistor Q16, the emitter of the sixteenth transistor Q16 is connected to-3V, the collector of the sixteenth transistor Q16 is connected to a resistor bridge, and one of the resistor bridge is grounded through a single-coil solenoid VALVE VALVE1, the other path is connected with the drain electrode of a fifteenth MOS tube Q15, one path of the grid electrode of the fifteenth MOS tube Q15 is connected with the collector electrode of a seventeen triode Q17 through a second resistor R2, the other path is connected with the emitter electrode of a sixteenth triode by-3V in common through a twenty-seventh resistor R27, a first diode ZD1 and a second diode ZD2, and the source electrode of the fifteenth MOS tube Q15 is connected with an energy storage unit.
4. The dry-burning prevention control system based on the single-coil solenoid valve as claimed in any one of claims 1 to 3, wherein the negative voltage power module (1) comprises a sixth chip IC6, the second pin of the sixth chip IC6 is connected to 3V, the fifth pin of the sixth chip IC6 is connected to a twelfth resistor R42, the third pin of the sixth chip IC6 is connected to the sixth pin of the sixth chip IC6 through a twenty-first capacitor C21, the first pin of the sixth chip IC6 is connected to-3V in a first circuit, and the other circuit is connected to ground through a thirteenth capacitor C13.
5. The single-coil solenoid valve-based dry burning prevention control system according to any one of claims 1-3, wherein the boost power module (2) comprises a third chip U3, the VL pin of the third chip U3 is connected to the VT pin of the third chip U3 through an eighth diode D8 in one path, the other path is connected to the first capacitor EC1 through a first inductor L1, the first capacitor EC1 is connected to a fourteenth capacitor C14 in parallel, a second capacitor EC2, a sixth capacitor C6 and an eleventh capacitor C11 are connected in parallel between the GND pin and the VT pin of the third chip U3, and the second capacitor EC2, the sixth capacitor C6 and the eleventh capacitor C11 are connected in parallel, and then one end is grounded and the other end is VCC.
6. The single-coil solenoid valve-based dry burning prevention control system according to any one of claims 1 to 3, wherein the battery voltage detection module (3) comprises a voltage division circuit consisting of a thirty-fourth resistor R34 and a thirty-fifth resistor R35, and an output end of the voltage division circuit is connected with the MCU (5).
7. The dry burning prevention control system based on the single coil electromagnetic valve according to any one of claims 1 to 3, wherein the MCU (5) comprises a first chip IC1, a first pin of the first chip IC1 is grounded, a second pin is connected to VCC, an eighteenth capacitor C18 is arranged between the first pin and the second pin, a fourteenth pin of the first chip IC1 is connected with the battery voltage detection module (3), and a ninth pin and a tenth pin of the first chip IC1 are respectively connected with bases of an eleventh triode Q11 and a seventeenth triode Q17 of the single coil electromagnetic control module (4).
8. The single coil solenoid valve-based dry burning prevention control system as claimed in claim 5, wherein the model number of the third chip U3 is ME 2180.
9. The single coil solenoid valve-based dry combustion prevention control system of claim 7, wherein the first chip IC1 is of type GPM8F 3708B.
10. An anti-dry-burning kitchen range, characterized in that the kitchen range comprises the anti-dry-burning control system based on the single-coil electromagnetic valve and the kitchen range body, wherein the anti-dry-burning control system is arranged in the kitchen range body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921131936.2U CN210717697U (en) | 2019-07-18 | 2019-07-18 | Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921131936.2U CN210717697U (en) | 2019-07-18 | 2019-07-18 | Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210717697U true CN210717697U (en) | 2020-06-09 |
Family
ID=70929581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921131936.2U Active CN210717697U (en) | 2019-07-18 | 2019-07-18 | Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210717697U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388664A (en) * | 2019-07-18 | 2019-10-29 | 华帝股份有限公司 | Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove |
| CN112051765A (en) * | 2020-08-13 | 2020-12-08 | 浙江达峰科技有限公司 | Dry burning prevention control circuit system and method for integrated cooker |
-
2019
- 2019-07-18 CN CN201921131936.2U patent/CN210717697U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388664A (en) * | 2019-07-18 | 2019-10-29 | 华帝股份有限公司 | Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove |
| CN112051765A (en) * | 2020-08-13 | 2020-12-08 | 浙江达峰科技有限公司 | Dry burning prevention control circuit system and method for integrated cooker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210717697U (en) | Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove | |
| CN106655747B (en) | Power supply circuit, switching power supply system and power supply method thereof | |
| CN102612197B (en) | LED (light emitting diode) driving circuit and LED lamp using same | |
| CN111463067B (en) | Air conditioner zero power consumption standby remote control socket circuit | |
| CN206432888U (en) | Power supply circuit, Switching Power Supply control chip and switch power supply system | |
| CN215895332U (en) | Synchronous rectification constant current source circuit | |
| CN212785171U (en) | Voltage generating circuit, single-coil electromagnetic valve control circuit and cooker | |
| CN203014989U (en) | Remote sensing CCD camera power supply driving control circuit | |
| CN207106201U (en) | A kind of electric power system of electric automobile | |
| EP2330714A2 (en) | A charging circuit | |
| CN110388664A (en) | Dry burning prevention control system based on single coil electromagnetic valve and dry burning prevention stove | |
| CN109393574B (en) | Electronic cigarette control system | |
| CN209806116U (en) | leakage protection circuit, leakage protection device and LED device | |
| CN208401540U (en) | A kind of anti-surge circuit for VPX power supply | |
| CN208589394U (en) | Relay controls side reduction voltage circuit, relay and electrical equipment | |
| CN209120507U (en) | A kind of LED linear constant-flow driver | |
| CN102709021A (en) | Control circuit for electromagnet and electromagnetic valve | |
| CN106226681A (en) | A kind of power circuit failure detector circuit and electronic equipment | |
| CN208738139U (en) | A kind of control relay circuit and relay control device | |
| CN215990213U (en) | Self-locking power supply switching circuit | |
| CN2450485Y (en) | AC pulse electromagnetic valve | |
| CN110445360A (en) | DC power supply charging circuit and DC power supply charging equipment | |
| CN220423133U (en) | Airflow sensing circuit and electronic atomization device | |
| CN202711900U (en) | Control circuit of electromagnet and electromagnetic valve | |
| CN213660326U (en) | Under-voltage release |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |