CN204268524U - A kind of intelligent integrated stove of power-off forced shutdown - Google Patents
A kind of intelligent integrated stove of power-off forced shutdown Download PDFInfo
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- CN204268524U CN204268524U CN201420746221.9U CN201420746221U CN204268524U CN 204268524 U CN204268524 U CN 204268524U CN 201420746221 U CN201420746221 U CN 201420746221U CN 204268524 U CN204268524 U CN 204268524U
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Abstract
The utility model discloses a kind of intelligent integrated stove of power-off forced shutdown, comprise the magnetic valve controlling gas pipeline and close, according to the thermocouple of kitchen range temperature opens solenoid valve, relay, and the power switch to be connected in series with the control coil of described relay, wherein said thermocouple is connected with the normally-closed contact of relay and forms combustion gas control loop with magnetic valve, the control end of described power switch is for receiving timing shutdown signal to disconnect combustion gas control loop, it is characterized in that, also be provided with the city's power detection circuit be connected with the control end of power switch, for sending forced shutdown signal to power switch when civil power power-off.Intelligent integrated stove of the present utility model positive closing integrated kitchen range after civil power power-off, prevent from, because of civil power power-off, security incident occurs, substantially increase the security of integrated kitchen range, and after positive closing integrated kitchen range, can reset rapidly, make integrated kitchen range reply normal Standby state.
Description
Technical field
The utility model relates to integrated kitchen range technical field, is specifically related to a kind of intelligent integrated stove of power-off forced shutdown.
Background technology
Along with the progress of technology, modern kitchen electrical equipment is gradually to intelligent and integrated development.Integration kitchen range is exactly Typical Representative wherein, integrated kitchen range, also environment-protection oven or integrated environment-friendly stove is called in industry, integrating is a kind of kitchen appliance collecting the several functions such as range hood, gas-cooker, disinfection cabinet, storage cabinet, there is saving space, smoke pumping is effective, the advantages such as low energy environmental protection.
Existing integrated kitchen range utilizes same control panel to control more, reduces manufacturing cost, and improves the space availability ratio in kitchen.
General integrated kitchen range fume-exhausting rate reach 95% and more than, the product brand that wherein fume-exhausting rate reaches more than 99.90% is called " smoke-free range ".As the upgrading products of integrated kitchen range, smoke-free range with the outward appearance of leading design, fashion, by people are liked.
Along with the popularization of Smart Home, intelligent integrated stove also enters the life of people.Timing function is one of modal function of intelligent integration stove.
The Chinese utility model patent being 203068588U as publication number application discloses that a kind of integrated kitchen range having timing function, comprise timer, burner, burner is arranged on both sides, integrated kitchen range upper end, set timer is on the right side of integrated kitchen range front end, timing is set by timer, at the end of timing, send off signal, close integrated kitchen range.
In daily life, as Baoshang, boiling medicine and so on needs the long period, and people keeps always and can lose time gas-cooker is other.Utilize this integrated kitchen range having timing function then can timing after, auto extinguishing.
Although this integrated kitchen range can realize timing shutdown function, its timer adopts mains-supplied.When this civil power has electricity, timing function is normal.Once civil power power-off, then timing function lost efficacy, even if timing terminates, this gas-cooker also can not stop working.When user leaves, be easy to cause security incident.Therefore, the integrated kitchen range that still can stop working after mains failure is one of focus of research in current integrated kitchen range field.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of intelligent integrated stove of power-off forced shutdown.
A kind of intelligent integrated stove of power-off forced shutdown, comprise the magnetic valve controlling gas pipeline and close, according to the thermocouple of kitchen range temperature opens solenoid valve, relay, and the power switch to be connected in series with the control coil of described relay, wherein said thermocouple is connected with the normally-closed contact of relay and forms combustion gas control loop with magnetic valve, the control end of described power switch is for receiving timing shutdown signal to disconnect combustion gas control loop, also be provided with the city's power detection circuit be connected with the control end of power switch, for sending forced shutdown signal to power switch when civil power power-off.
Timing shutdown signal comes from the timing circuit by mains-supplied, and when civil power power-off, timing circuit does not work, and does not send timing shutdown signal, and then timing shutdown disabler.Intelligent integrated stove of the present utility model is provided with city's power detection circuit, once civil power power-off be detected, then sends forced shutdown signal, the normally-closed contact of relay is disconnected, and then close integrated kitchen range, avoids security incident occurs.
The control coil serial connection power switch of relay forms the control loop of relay, and off signal needs the function realizing disconnecting combustion gas control loop by relay control circuit.
As preferably, described city's power detection circuit comprises on-off circuit, for producing switching signal when civil power power-off;
And impulse circuit, the switching signal output pulse signal that described impulse circuit is used for exporting according to on-off circuit is as forced shutdown signal.
Using pulse signal as forced shutdown signal, can also, after shutdown, make combustion gas control loop reset further, again make the normally-closed contact of relay close.
On-off circuit is in fact using civil power as control signal, and general civil power power-off then produces switching signal, and trigger pulse circuit sends pulse signal as forced shutdown signal.This pulse signal can be direct impulse can be also negative-going pulse, and the needs of root relay control circuit set.
For ensureing that merit city power detection circuit normally works, described city's power detection circuit also comprises stand-by power supply, is that described on-off circuit and impulse circuit are powered by stand-by power supply.
As preferably, described on-off circuit comprises triode, and the base stage of described triode is electrically connected with city, by the second sectional pressure element ground connection by the first sectional pressure element; Grounded emitter; Output using colelctor electrode as city's power detection circuit.
As preferably, described impulse circuit is powered and is comprised coupling capacitance, discharge switch and charging capacitor, and described discharge switch is serially connected with in the charging and discharging circuit of described charging capacitor, and the opening and closing of described discharge switch is controlled by the voltage of described coupling capacitance positive pole.
Described discharge switch comprises triode, and the base stage of described triode is connected with the positive pole of coupling capacitance as control end, and collector and emitter, as switch contact, is connected with the positive pole of charging capacitor and negative pole respectively.
Described city power detection circuit also comprises pull-up resistor and the biasing resistor of serial connection, one end of described pull-up resistor is connected with stand-by power supply, the other end is connected with the positive pole of described charging capacitor, and one end of described biasing resistor is connected with pull-up resistor, and the other end is connected with the positive pole of described coupling capacitance.
Compared with prior art, the beneficial effects of the utility model are:
Positive closing integrated kitchen range after civil power power-off, prevents from, because of civil power power-off, security incident occurs, substantially increases the security of integrated kitchen range, and after positive closing integrated kitchen range, can reset rapidly, makes integrated kitchen range reply normal Standby state.
Accompanying drawing explanation
Fig. 1 is that the circuit theory of the intelligent integrated stove of the power-off forced shutdown of the present embodiment is as figure.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The circuit theory of the intelligent integrated stove of the power-off forced shutdown of the present embodiment as shown in Figure 1, comprise: for controlling the magnetic valve that gas pipeline is closed, according to the thermocouple of kitchen range temperature opens solenoid valve, relay, the power switch be connected in series with the control coil of relay, and the circuits for triggering for being turned on or off according to timing shutdown signal or forced shutdown signal control power supply beginning;
Wherein, thermocouple is connected with the normally-closed contact of relay and forms combustion gas control loop with magnetic valve, disconnects combustion gas control loop during the conducting of described power switch.
In the present embodiment, timing shutdown signal comes from by the timing circuit of mains-supplied.
The control coil serial connection power switch of relay forms the control loop of relay, and conducting or the cut-off of this control loop are controlled by circuits for triggering.
The circuits for triggering of the present embodiment comprise one 555 timers, using the pin 2 of 555 timers as the input of circuits for triggering, and as the control end of whole power switch, in the present embodiment, control end is divided into two-way, a filter capacitor C301 is connected as the first control end in one road, connect the output of timing circuit, for receiving the timing shutdown signal of timing circuit, the filter capacitor C302 connected of separately leading up to is connected with diode D301 pin 7, the negative pole of diode D301 is connected with pin 7, and another control end (the second control end) using the positive pole of diode D301 as power switch, for receiving forced shutdown signal,
Pin 3 connects a resistance R301 as output;
Pin 4 connects dc source, connect dc source, and resistance 302 is parallel with diode D302 after pin 2 series resistance R302, and the positive pole of diode D302 connects pin 2, and negative pole connects dc source;
Pin 5 is by an electric capacity C303 ground connection;
Be connected with dc source with by resistance R303, by bypass capacitor C304 ground connection after pin 6 is connected with pin 7;
Pin 8 and pin 1 connect dc source and ground respectively, are that 555 timers are powered.
In the present embodiment, power switch comprises triode T301 (NPN type); the output of circuits for triggering is connected with the base stage of triode T301; grounded emitter; be connected with dc source after colelctor electrode is connected with the coil of relay; and the two ends of dc source are also parallel with anti-reverse diode D303; the positive pole of diode D303 is connected with the colelctor electrode of triode T301, shields to triode T301.
For preventing timing function after power-off to lose efficacy the security incident caused, the intelligent integrated stove in the present embodiment is also provided with the city's power detection circuit be connected with the control end of power switch, for when civil power power-off to power switch transmission forced shutdown signal.This city's power detection circuit comprises:
On-off circuit, for producing switching signal when civil power power-off;
The switching signal output pulse signal that one-shot circuit is used for exporting according to on-off circuit is as forced shutdown signal.
And stand-by power supply, be that on-off circuit and one-shot circuit are powered by stand-by power supply.
The present embodiment breaker in middle circuit comprises triode T302, the base stage of triode T302 (is resistance R304 in the present embodiment by the first sectional pressure element, 10K Ω) be electrically connected with city, by the second sectional pressure element (being resistance R305,1K Ω in the present embodiment) ground connection; Grounded emitter; Output using colelctor electrode as city's power detection circuit, is connected with the second control end of power switch.
The one-shot circuit of the present embodiment is powered and is comprised coupling capacitance C304 (capacitance is 47uF), discharge switch and charging capacitor C307 (capacitance is 10uF), discharge switch is serially connected with in the charging and discharging circuit of charging capacitor C307, and the opening and closing of discharge switch is controlled by the voltage of coupling capacitance C4 positive pole.This discharge switch comprises triode T303 (NPN type), is connected using the base stage of triode T303 as control end with the positive pole of coupling capacitance C304, and collector and emitter, as switch contact, is connected with the positive pole of charging capacitor C307C and negative pole respectively.
City's power detection circuit of the present embodiment also comprises pull-up resistor R306 (resistance is 5K Ω) and the biasing resistor R307 (resistance is 1K Ω) of serial connection, one end of pull-up resistor R306 is connected with stand-by power supply, the other end is connected with the positive pole of charging capacitor C307, one end of biasing resistor R307 is connected with pull-up resistor R6, and the other end is connected with the positive pole of coupling capacitance C304.
The operation principle of the integrated kitchen range of the present embodiment is as follows:
When civil power normal power supply (not power-off), the second control end input low level of power switch, i.e. the forced shutdown invalidating signal of the second control end input:
If now timing does not arrive, then wait for the first control end incoming timing control signal, magnetic valve has electricity, and integrated kitchen range works on, and timing circuit continues timing;
At the end of timing, timing circuit exports effective timing shutdown signal to the first control end, 555 timers now in power switch export high level, triode T301 conducting, whole power switch conducting, the i.e. control loop conducting of relay coil, now relay coil has electric current, and normally-closed contact is disconnected, and then makes combustion gas control loop, now magnetic valve dead electricity, gas-cooker is closed;
When civil power power-off, timing circuit lost efficacy not-time, and timing circuit is the timing shutdown invalidating signal of the first control end input.Now, due to civil power power-off, then triode T302 ends, now the incoming level of the second control end is instantaneous is high, coupling capacitance C304 and charging capacitor C307 is charged, when the voltage of coupling capacitance C304 positive pole reaches certain value, as the triode T303 conducting of discharge switch, now charging capacitor C307 and triode T303 forms discharge loop, and charging capacitor C307 is discharged by this loop.Along with electric discharge is carried out, the voltage at charging capacitor C307 two ends reduces gradually, and then is dragged down gradually by the voltage of the colelctor electrode of triode T303.
Visible, normally work at integrated kitchen range, the unexpected power-off of civil power, time city's power detection circuit can export the second control end that a direct impulse (become high level from low level and return low level pulse) is input to power switch.
For power switch:
When direct impulse is high level, the forced shutdown signal that second control end (i.e. the output of 555 timers) of power switch inputs is high level.Now, in power switch, the output (pin 3) of 555 timers exports high level, triode T301 conducting, whole power switch conducting, i.e. the control loop conducting of relay coil, now relay coil has electric current, normally-closed contact is disconnected, and then making combustion gas control loop, now magnetic valve dead electricity, gas-cooker is closed;
When direct impulse becomes low level from high level, the forced shutdown signal that second control end (i.e. the output of 555 timers) of power switch inputs is low level.Now, output (pin 3) output low level of 555 timers in power switch, triode T301 ends, whole power switch disconnects, namely the control loop of relay coil disconnects, now relay coil no current (power-off), and the armature of relay comes back to normally-closed contact, and then make the conducting of combustion gas control loop, and then complete reset.Due to when pulse signal is high level, integrated kitchen range stops working, then thermocouple two ends do not have voltage, and therefore, even if the conducting of combustion gas control loop, owing to not having voltage, magnetic valve still keeps dead electricity, and namely integrated kitchen range is still closed.
Can normally stop working when power-off for ensureing in the present embodiment, and flame-out after can Rapid reset, city's power detection circuit is when civil power power-off, in the pulse signal (being actually pulse) sent, the duration of high level is at least 1s, specifically depends on the discharge time of charging capacitor C307.
Above-described detailed description of the invention has been described in detail the technical solution of the utility model and beneficial effect; be understood that and the foregoing is only most preferred embodiment of the present utility model; be not limited to the utility model; all make in spirit of the present utility model any amendment, supplement and equivalent to replace, all should be included within protection domain of the present utility model.
Claims (7)
1. the intelligent integrated stove of a power-off forced shutdown, comprise the magnetic valve controlling gas pipeline and close, according to the thermocouple of kitchen range temperature opens solenoid valve, relay, and the power switch to be connected in series with the control coil of described relay, wherein said thermocouple is connected with the normally-closed contact of relay and forms combustion gas control loop with magnetic valve, the control end of described power switch is for receiving timing shutdown signal to disconnect combustion gas control loop, it is characterized in that, also be provided with the city's power detection circuit be connected with the control end of power switch, for sending forced shutdown signal to power switch when civil power power-off.
2. the intelligent integrated stove of power-off forced shutdown as claimed in claim 1, it is characterized in that, described city's power detection circuit comprises on-off circuit, for producing switching signal when civil power power-off;
And impulse circuit, the switching signal output pulse signal that described impulse circuit is used for exporting according to on-off circuit is as forced shutdown signal.
3. the intelligent integrated stove of power-off forced shutdown as claimed in claim 2, it is characterized in that, described city's power detection circuit also comprises stand-by power supply, is that described on-off circuit and impulse circuit are powered by stand-by power supply.
4. the intelligent integrated stove of power-off forced shutdown as claimed in claim 3, it is characterized in that, described on-off circuit comprises triode, and the base stage of described triode is electrically connected with city, by the second sectional pressure element ground connection by the first sectional pressure element; Grounded emitter; Output using colelctor electrode as city's power detection circuit.
5. the intelligent integrated stove of power-off forced shutdown as claimed in claim 3, it is characterized in that, described impulse circuit is powered and is comprised coupling capacitance, discharge switch and charging capacitor, described discharge switch is serially connected with in the charging and discharging circuit of described charging capacitor, and the opening and closing of described discharge switch is controlled by the voltage of described coupling capacitance positive pole.
6. the intelligent integrated stove of power-off forced shutdown as claimed in claim 5, it is characterized in that, described discharge switch comprises triode, the base stage of described triode is connected with the positive pole of coupling capacitance as control end, collector and emitter, as switch contact, is connected with the positive pole of charging capacitor and negative pole respectively.
7. the intelligent integrated stove of power-off forced shutdown as claimed in claim 6, it is characterized in that, described city power detection circuit also comprises pull-up resistor and the biasing resistor of serial connection, one end of described pull-up resistor is connected with stand-by power supply, the other end is connected with the positive pole of described charging capacitor, one end of described biasing resistor is connected with pull-up resistor, and the other end is connected with the positive pole of described coupling capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746221.9U CN204268524U (en) | 2014-12-02 | 2014-12-02 | A kind of intelligent integrated stove of power-off forced shutdown |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746221.9U CN204268524U (en) | 2014-12-02 | 2014-12-02 | A kind of intelligent integrated stove of power-off forced shutdown |
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| CN204268524U true CN204268524U (en) | 2015-04-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217455A (en) * | 2018-08-21 | 2019-01-15 | 厦门阳光恩耐照明有限公司 | A kind of emergency switching circuit of lighting circuit |
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2014
- 2014-12-02 CN CN201420746221.9U patent/CN204268524U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217455A (en) * | 2018-08-21 | 2019-01-15 | 厦门阳光恩耐照明有限公司 | A kind of emergency switching circuit of lighting circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 312451 No. 138 Pudong Avenue, Shengzhou Economic Development Zone (Pukou Street), Shaoxing City, Zhejiang Province Patentee after: Zhejiang Senge intelligent Kitchen Appliance Co.,Ltd. Address before: 312400 No. 5, Jiajia Road, Shengzhou Economic Development Zone, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SENG ELECTRICAL Co.,Ltd. |