CN206398778U - Burned protection device for gas oven - Google Patents
Burned protection device for gas oven Download PDFInfo
- Publication number
- CN206398778U CN206398778U CN201720006565.XU CN201720006565U CN206398778U CN 206398778 U CN206398778 U CN 206398778U CN 201720006565 U CN201720006565 U CN 201720006565U CN 206398778 U CN206398778 U CN 206398778U
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- Prior art keywords
- switch
- power
- timing module
- module
- circuit
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- 230000006698 induction Effects 0.000 claims abstract description 31
- 230000003111 delayed effect Effects 0.000 claims abstract description 5
- 238000000605 extraction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000009841 combustion method Methods 0.000 abstract description 8
- 238000010411 cooking Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 23
- 230000006870 function Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002459 sustained effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007087 memory ability Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Control Of Combustion (AREA)
- Emergency Alarm Devices (AREA)
- Cookers (AREA)
Abstract
The utility model discloses a kind of burned protection device for gas oven, belong to a kind of kitchen range safety guard, it includes inductor, timer, alarm, solenoid gas valve and power circuit, the inductor is human induction switch, the timer includes single order timing module and second order timing module, the power circuit connects civil power, solenoid gas valve working power and device working power are provided, power circuit is provided with power switch and relay, the single order timing module is connected to form delayed alarm module with alarm circuit, the second order timing module is connected to form delay cut-out module with relay circuit；Also include mechanical timer to switch.The utility model is not only simple in structure, and it is reasonable to set, and reliability is high, and applied widely, and dry combustion method judges that accuracy is high, can meet decocted in daily life fry, heat up water, cooking congee, the various demands such as Baoshang.
Description
Technical field
The utility model is related to kitchen range safety guard, especially a kind of burned protection device for gas oven.
Background technology
Gas-cooker turns into kitchen articles indispensable in life, but its safety in utilization is always that people are particularly concerned about
The problem of.Many users, which have, to be forgotten to close gas-cooker and causes the experience of dry combustion method, especially the elderly, immediate memory ability compared with
Difference, frequently encounters the situation of dry combustion method, there is larger potential safety hazard, and the lighter's food and pan are damaged, and fire thing can occur for severe one
Therefore, the news report of similar tragedy is quite a few.
Prior art is to solve the problems, such as anti-dry, it was also proposed that kinds of schemes, mainly there is following several：1. by the combustion of gas-cooker
Air cock is designed as carrying timing function, during using gas-cooker, and the timing needed for burnt gas switch is turned to is interval, when timing is tied
Shu Hou, gas-cooker is closed automatically；2. the heated utensil of temperature sensor contact induction is passed through（Frying pan, steamer etc.）Temperature, profit
Determine whether dry combustion method with the temperature range of utensil；3. by the heated utensil of gravity sensor contact induction, become using weight
Change determines whether dry combustion method.Three of the above scheme, although can realize burning prevention function, but restricted application, for example：Scheme is 1.
Timing mode belong to actively set, if setting time is improper, do not reach the purpose of anti-dry yet；The TEMP of scheme 2.
Device is not only applicable pan shape limited and different by pan shape, material, and the accuracy that it senses is also impacted, anti-dry
Protection probability is larger by mistake；The gravity sensor of scheme 3. is 2. more similar to scheme, although can be designed as not by pan shape,
The influence of material, but limited by cooking method, if weight does not change, it can not realize that anti-dry is protected.Therefore with
The problem of there is anti-dry less effective in upper three kinds of schemes.
Utility model content
Technical problem to be solved in the utility model is to overcome above mentioned problem, and provides a kind of applied widely, dry
Burn the burned protection device for gas oven for judging that accuracy is high.
The technical solution of the utility model is：
A kind of burned protection device for gas oven, including inductor, timer, alarm, solenoid gas valve and power circuit, its
It is characterised by：The inductor is human induction switch, and the timer includes single order timing module and second order timing module, institute
State power circuit and connect civil power there is provided solenoid gas valve working power and device working power, power circuit is opened provided with power supply
Close and relay, the single order timing module is connected to form delayed alarm module with alarm circuit, the second order timing module
It is connected to form delay cut-out module with relay circuit；Also include the mechanical timer switch adjusted manually, the mechanical timer is opened
Pass is connected single order timing module with human induction switch with the control circuit of " logical AND ", and mechanical timer switch, human body sensing are opened
Pass is connected second order timing module with single order timing module with the control circuit of " logical AND ", and mechanical timer switch, human body sensing are opened
Pass is connected relay with second order timing module with the control circuit of " logical AND ".I.e. when mechanical timer switch and human induction switch
All in off-state, single order timing module can just be triggered；When mechanical timer switch, human induction switch are all in disconnection shape
State, and single order timing module is then, and second order timing module can just be triggered；When mechanical timer switch, human induction switch are all located
In off-state, and second order timing module is then, and relay can just be connected and cut off the electricity supply.
Timing knob that further, mechanical timer described in the utility model switch includes being used for setting timing time,
The gear train being coupled and the switch control whether connected for controlling switch, the switch control are driven with the timing knob
Product is coupled with the transmission of timing knob.
Further, burned protection device for gas oven described in the utility model includes housing, front panel, is arranged in housing
Circuit board, on mechanical timer switch, human induction switch and power switch plate forward-mounted, single order timing module,
Second order timing module, power circuit, alarm and relay are respectively provided with circuit boards；The solenoid gas valve is arranged on combustion gas
On admission line, outside power circuit extraction wire to housing, civil power and solenoid gas valve are connected respectively.
Further, single order timing module and second order timing module described in the utility model include NE555 timing cores
Piece and, the delay circuit of described in the utility model human induction switch appearance composition further by resistance, rheostat, electricity.
NE555 timing chip only needs simple resistor, capacitor, you can complete specific oscillation delay effect, its reference time delay pole
Extensively, can be by several microseconds to as long as a few houres, timing precision is high, temperature stability is good and cheap.
It is that photoelectric sensor switch or infra-red sensor switch or wireless radar are switched.Using human induction switch, compared to existing
Some gas-cooker temperature, gravity sensing, installation site and detection range be not by this body structure of gas-cooker and pan shape, size
Limitation, and whether to detect Attended mode as judgment basis, dry combustion method judges that accuracy is high, the problem of effectively preventing " protecting by mistake "
Occur.
Further, delay cut-out module described in the utility model also includes fly-wheel diode, the fly-wheel diode
With the coil of the relay and connecing.Internal power pipe is damaged to prevent relay coil back-emf using fly-wheel diode.
The beneficial effects of the utility model are：1st, simple in construction, whether low manufacture cost uses human induction switch to visit
Attended mode is measured for dry combustion method judgment basis, is not limited by this body structure of gas-cooker and pan shape, size not only, model is applicable
Enclose wide, and dry combustion method judges that accuracy is high；2nd, anti-dry process is divided into delayed alarm and delay two stages of cut-out, sets and close
Reason, reliability is high, while set up mechanical timer switch, can meet decocted in daily life fry, heat up water, cooking congee, the various need such as Baoshang
Ask.
Brief description of the drawings
Fig. 1 is the electrical block diagram of the utility model embodiment.
Fig. 2 is the structural representation of the utility model embodiment.
Fig. 3 is the operation principle schematic diagram that the utility model is implemented.
Embodiment
The utility model is further described in conjunction with drawings and examples, but the utility model is not limited to these
Embodiment.
As shown in figure 1, the burned protection device for gas oven of the present embodiment includes inductor, timer, alarm LS1, electromagnetism
Gas valve Y1 and power circuit.Wherein, inductor is human induction switch K1, and such as photoelectric sensor switch or infrared induction are opened
Close or wireless radar switch, connected where human induction switch K1 senses gas-cooker in spatial dimension during Attended mode, nobody
Disconnected when on duty.Timer includes single order timing module and second order timing module.There is provided electromagnetism by power circuit connection civil power 220V
Gas valve Y working powers and device working power, power circuit are provided with power switch and relay J1.Single order timing module with
Alarm LS1 circuits connect to form delayed alarm module, and second order timing module is connected to form delay cut-out with relay J1 circuits
Module.Also include the mechanical timer switch K2 adjusted manually, mechanical timer switch K2 and human induction switch K1 is with " logical AND "
Control circuit connection single order timing module, mechanical timer switch K2, human induction switch K1 and single order timing module are with " logic
With " control circuit be connected second order timing module, mechanical timer switch K2, human induction switch K1 and second order timing module with
The control circuit connection relay J1 of " logical AND ".
The timing knob and the timing knob that above-mentioned mechanical timer switch K2 includes being used to set timing time are driven
The gear train of connection and the switch control whether connected for controlling switch, switch control is driven with timing knob to be joined
Knot.Rotate timing knob to set after timing time, then switch control action ON switch, gear train starts driving timing rotation
Button backwards rotation starts countdown, and setting time is arrived, and it is disconnected that timing knob to initial position is then driven switch control action
Switch, so as to realize the function of time switch.
Above-mentioned single order timing module and second order timing module include NE555 timing chip IC 1, IC2 and by resistance R1,
R2, rheostat RP1, RP2, the delay circuit of electric capacity C1, C2 composition.By changing rheostat RP1, RP2 resistance value, it can adjust
Save single order, second order timing delays time.
Above-mentioned delay cut-out module also includes sustained diode 1, and sustained diode 1 and relay J1 coil is simultaneously
Connect.
As shown in Fig. 2 the mounting structure of this burned protection device for gas oven includes housing 10, front panel 11, is arranged on housing
Circuit board in 10（It is not drawn into figure）, mechanical timer switch 20, human induction switch 30 and power switch 40 are forward-mounted
On plate 11, single order timing module, second order timing module, power circuit, alarm and relay are respectively provided with circuit boards.Electromagnetism
Gas valve is arranged on gas inlet pipeline, outside power circuit extraction wire 50 to housing, and civil power and electromagnetism combustion gas are connected respectively
Valve.Burned protection device for gas oven also includes being used to show the magnetic valve indicator lamp 60 whether solenoid gas valve opens, before being arranged on
On panel 11.
With reference to said structure and Fig. 3, the utility model anti-dry principle is described as follows：
Original state：Whole anti-dry burning device power-off is not worked, and solenoid gas valve power-off, valve is closed, and is fired
Gas is cut off.When the power switch for pressing device switches on power, solenoid gas valve energization valve is opened, and starts supply, device
Start working.
In cooking process, when human induction switch senses Attended mode, then solenoid gas valve is kept it turned on；Work as human body
When inductive switch is not sensed by Attended mode, then triggers single order timing module and start timing.
Before single order timing reaches setting warning time, if human induction switch senses Attended mode, one again
Rank timing, which is reset, stops timing, recovers normal culinary art；If single order timing reaches setting time of fire alarming, human induction switch is not felt yet
Attended mode should be arrived, then connects alarm equipment alarm, while triggering second order timing module starts timing.
Before second order timing reaches setting break time, if human induction switch senses Attended mode, two again
Rank timing, which is reset, stops timing, and alarm stops, and recovers normal culinary art；If second order timing reaches setting break time, human body sensing
Switch is still not sensed by Attended mode, then connects relay and disconnect power circuit, and solenoid gas valve power-off, valve is closed, stopped
Only supply, realize that anti-dry is protected with this.
When needing to be cooked congee, the culinary art that the time such as Baoshang is longer when, mechanical timer switch manual can be adjusted and set one
Individual longer time delay, within the time delay, no matter whether human induction switch senses Attended mode, all without triggering
Single order timing module；Disconnected after mechanical timer switch reaches setting time, the sensing result of human induction switch can just work,
Various culinary art demands are met with this.
It is understood that for the person of ordinary skill of the art, can be according to technology structure of the present utility model
Think of makes other various corresponding changes and deformation, and all these changes and deformation should all belong to the utility model claim
Protection domain.
Claims (6)
1. a kind of burned protection device for gas oven, including inductor, timer, alarm, solenoid gas valve and power circuit, it is special
Levy and be：The inductor is human induction switch, and the timer includes single order timing module and second order timing module, described
Power circuit connects civil power there is provided solenoid gas valve working power and device working power, and power circuit is provided with power switch
And relay, the single order timing module is connected to form delayed alarm module with alarm circuit, the second order timing module with
Relay circuit connects to form delay cut-out module；Also include the mechanical timer switch adjusted manually, the mechanical timer switch
Single order timing module, mechanical timer switch, human induction switch are connected with the control circuit of " logical AND " with human induction switch
Second order timing module, mechanical timer switch, human induction switch are connected with the control circuit of " logical AND " with single order timing module
Relay is connected with the control circuit of " logical AND " with second order timing module.
2. burned protection device for gas oven according to claim 1, it is characterised in that：The mechanical timer switch includes being used for
The timing knob of timing time is set, the gear train being coupled is driven with the timing knob and whether is connected for controlling switch
Switch control, the transmission of the switch control and timing knob is coupled.
3. burned protection device for gas oven according to claim 2, it is characterised in that：Including housing, front panel, it is arranged on shell
On internal circuit board, the mechanical timer switch, human induction switch and power switch plate forward-mounted, single order timing mould
Block, second order timing module, power circuit, alarm and relay are respectively provided with circuit boards；The solenoid gas valve is arranged on
On gas inlet pipeline, outside power circuit extraction wire to housing, civil power and solenoid gas valve are connected respectively.
4. burned protection device for gas oven according to claim 1, it is characterised in that：The single order timing module and second order meter
When module include NE555 timing chip and the delay circuit that is made up of resistance, rheostat, electric capacity.
5. burned protection device for gas oven according to claim 1, it is characterised in that：The human induction switch is light inductance
Inductive switch or infra-red sensor switch or wireless radar switch.
6. burned protection device for gas oven according to claim 1, it is characterised in that：The delay cut-out module also includes continuous
Diode is flowed, the coil of the fly-wheel diode and the relay simultaneously connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720006565.XU CN206398778U (en) | 2017-01-04 | 2017-01-04 | Burned protection device for gas oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720006565.XU CN206398778U (en) | 2017-01-04 | 2017-01-04 | Burned protection device for gas oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206398778U true CN206398778U (en) | 2017-08-11 |
Family
ID=59516973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720006565.XU Expired - Fee Related CN206398778U (en) | 2017-01-04 | 2017-01-04 | Burned protection device for gas oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206398778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160089A (en) * | 2019-06-24 | 2019-08-23 | 北京蕾洛洁美厨房设备有限公司 | A kind of gas cooker monitors protection system of dying automatically |
-
2017
- 2017-01-04 CN CN201720006565.XU patent/CN206398778U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160089A (en) * | 2019-06-24 | 2019-08-23 | 北京蕾洛洁美厨房设备有限公司 | A kind of gas cooker monitors protection system of dying automatically |
| CN110160089B (en) * | 2019-06-24 | 2024-02-13 | 北京蕾洛洁美厨房设备有限公司 | Automatic monitoring and gas-cutting protection system for gas cooker |
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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: 20170811 |