CN108302566A - Control system for domestic cooking appliances - Google Patents
Control system for domestic cooking appliances Download PDFInfo
- Publication number
- CN108302566A CN108302566A CN201810080819.1A CN201810080819A CN108302566A CN 108302566 A CN108302566 A CN 108302566A CN 201810080819 A CN201810080819 A CN 201810080819A CN 108302566 A CN108302566 A CN 108302566A
- Authority
- CN
- China
- Prior art keywords
- controller
- self
- thermocouple
- priming valve
- circuit
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
Abstract
The invention discloses a kind of control system for domestic cooking appliances, including controller, self-priming valve and thermocouple；One thermocouple is set on each burner, and each thermocouple is connect with controller；Controller is also connect with the microswitch of the spray point of each burner；One self-priming valve is installed in main gas circuit, self-priming valve is connect with controller.The controller includes microcontroller, and microcontroller connect circuit, self-priming valve-driving circuit, thermocouple conversion circuit, oscillation transformer connection, oscillation transformer high voltage package connection corresponding with each microswitch again with microswitch respectively.The positive effect of the present invention is：The circuit of controller is simple, and stability higher, volume smaller judges that precise control is reliable, and reduces cost.
Description
Technical field
The present invention relates to a kind of control system for domestic cooking appliances.
Background technology
Present control system for domestic cooking appliances, to the judgement of flame, there are two types of modes, and one is ion induction types, separately
One is thermocouple electromagnetic types.Ion induction type is to generate ion signal by flame calcination inductive needle, is used as that whether there is or not fire
The basis for estimation of flame burning, there is flame combustion, then has ion signal, controller to export the maintenance voltage of self-priming valve, make self-priming valve
It opens, keeps gas circuit unimpeded；Fray-out of flame, ion signal disappear, and controller does not export self-priming valve maintenance voltage, and self-priming valve closes
It closes, gas circuit shutdown.Thermocouple electromagnetic type is that there are one Minitype electromagnetic valve, the ends of the solenoid valve and thermocouple for each burner
Head is connected, and when flame combustion, thermocouple generates weak voltage, which directly drives solenoid valve, and solenoid valve is opened, and is kept
Gas circuit is unimpeded, and when fray-out of flame, thermocouple electromotive force disappears, and solenoid valve is closed without the electric bed of driving, gas circuit shutdown.
Both the above flame judgment mode has its drawback：Ion induction type is very big to the dependence of inductive needle, and kitchen range exist
After a period of use, due to soup erosion and oxidation etc., it is possible to which itself generates the electromotive force not disappeared, and interferes flame
Ion signal causes flame burning, and controller does not receive normal signal but, and then closes self-priming valve, leads to complete machine not
It can normal work；Secondly, caused by the principle of ion induction type, the component number of controller flame detection circuit part is more,
And it is higher to the stability requirement of component, so causing the probability of failure of circuit higher.Thermocouple electromagnetic type kitchen range are adopted
Minitype electromagnetic valve is that the weak voltage generated by thermocouple carrys out work, this requirement to solenoid valve is very high and this
The steady member of Minitype electromagnetic valve is poor, and the time has grown the phenomenon that being easy to occur winding desoldering, leads to kitchen range failure；Next, this
Kind Minitype electromagnetic valve higher price, along with each burner is required for matching solenoid valve, solenoid valve quantity is equal with burner quantity, leads
The cost increase of complete machine is caused.
Invention content
In order to overcome the disadvantages mentioned above of the prior art, the present invention provides a kind of control system for domestic cooking appliances, improve
The accuracy of fire defector, controller circuitry is simple, and stability is high.
The technical solution adopted by the present invention to solve the technical problems is：A kind of control system for domestic cooking appliances, including
Controller, self-priming valve and thermocouple；One thermocouple is set on each burner, and each thermocouple is connect with controller；Control
Device is also connect with the microswitch of the spray point of each burner；One self-priming valve, self-priming valve and controller are installed in main gas circuit
Connection.
The controller includes microcontroller, and microcontroller connect circuit, self-priming valve-driving circuit, thermoelectricity with microswitch respectively
Even conversion circuit, oscillation transformer connection, oscillation transformer high voltage package connection corresponding with each microswitch again.
Compared with prior art, the positive effect of the present invention is：The faint electricity generated by thermocouple, is made appropriate
Conversion, is used as the judgement signal of flame combustion, whether controller is to receive the signal to determine whether there is flame combustion；Such as
Fruit has signal, controller to export self-priming valve maintenance voltage, keeps gas circuit to open, if no signal, controller does not export self-priming valve
Maintenance voltage, gas circuit are closed.Prisoner this, the circuit of controller is simpler than the controller of ion induction type, and stability higher, volume is more
It is small, and this flame judgment mode judge than the flame of ion induction type it is more acurrate reliable；Due to the operating voltage of self-priming valve
It is to be exported by controller, so kitchen range complete machine only needs to install a self-priming valve in main gas circuit, rather than as common thermoelectricity
The quantity and burner quantity of the even such solenoid valve of formula kitchen range are equal, cost are reduced, moreover, self-priming used by the technical program
Valve is identical with existing common kitchen range self-priming valve, so parts procurement is convenient；That is small-sized on common thermocouple formula kitchen range
Solenoid valve, operating voltage is low, and coil is easy desoldering, leads to machine failure, and cost is higher, and the invention avoids use this electricity
Magnet valve, and general self-suction type electromagnetic valve is used, steady fortune property higher.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the controller of the present invention.
Specific implementation mode
A kind of control system for domestic cooking appliances, as shown in Fig. 1, including：Power supply, controller, self-priming valve, switch, thermoelectricity
It is even.One thermocouple is set on each burner, and each thermocouple is connect with controller, and controller is connect with power supply, by power supply
Device is powered in order to control；Controller is also connect with the microswitch of the spray point of each burner, controls the ignition discharge of spray point.
One self-priming valve is installed, self-priming valve is connect with controller, and driving voltage is provided by controller in main gas circuit.
As shown in Fig. 2, the circuit composition of controller includes：Microcontroller, microcontroller connect respectively with microswitch circuit,
Self-priming valve-driving circuit, oscillation transformer, the connection of thermocouple conversion circuit, oscillation transformer are again corresponding with each microswitch
High voltage package connection.The function of each section is：Microswitch connection circuit is connected with corresponding kitchen range microswitch, receives fine motion
The action of switch.When microswitch is opened, oscillation transformer starting of oscillation is immediately controlled in microcontroller, height corresponding with microswitch
Briquetting starts discharge igniting, and while high voltage package is discharged, microcontroller controls self-priming valve-driving circuit, and self-priming valve is made to open, and protects
Hold the smooth side of gas circuit.The effect of thermocouple conversion circuit is the electricity that the weak current for generating thermocouple is converted to the identification of monolithic function
It presses signal, microcontroller to judge to light a fire successfully after receiving transformed voltage signal, then controls oscillation transformer stopping and shake
It swings, and then high voltage package stops discharge igniting, while controlling self-priming valve-driving circuit and maintaining open state by self-priming valve.On the contrary, such as
Fruit microcontroller is not received by transformed voltage signal, then judges that loss of ignition or flame surprisingly extinguish, and is immediately controlled certainly
It inhales valve-driving circuit to shield to turn off gas circuit by self-priming valve breakdown, in this case, microcontroller also controls bee
Toot device sounds the alarm, and user's loss of ignition or flame is reminded surprisingly to extinguish.
The present invention operation principle be：Power supply is connected, and kitchen range are started to work, any one microswitch, corresponding stove are opened
Electric discharge needle-discharging on head, while controller exports self-priming valve driving voltage, so that self-priming valve is opened, flame starts to burn.Due to
Thermocouple self-characteristic could generate stable electromotive force after needing 3-5 seconds, controller is after thermocouple electromotive force stabilization
Start to have detected whether signal input；When there is thermocouple to pass signal back, illustrate there is flame combustion, controller exports self-priming valve dimension
Voltage is held, gas circuit is kept to open:When no thermocouple passes signal back, then illustrate that non-flaming combustion, controller do not export self-priming valve dimension
Voltage is held, gas circuit is closed.
Claims (2)
1. a kind of control system for domestic cooking appliances, it is characterised in that：Including controller, self-priming valve and thermocouple；In each stove
One thermocouple is set on head, and each thermocouple is connect with controller；Fine motion of the controller also with the spray point of each burner is opened
Connection connects；One self-priming valve is installed in main gas circuit, self-priming valve is connect with controller.
2. according to the control system for domestic cooking appliances described in claim l, it is characterised in that：The controller includes monolithic
Machine, microcontroller connect circuit, self-priming valve-driving circuit, thermocouple conversion circuit, oscillation transformer connection with microswitch respectively,
Oscillation transformer high voltage package connection corresponding with each microswitch again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810080819.1A CN108302566A (en) | 2018-01-28 | 2018-01-28 | Control system for domestic cooking appliances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810080819.1A CN108302566A (en) | 2018-01-28 | 2018-01-28 | Control system for domestic cooking appliances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108302566A true CN108302566A (en) | 2018-07-20 |
Family
ID=62867010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810080819.1A Withdrawn CN108302566A (en) | 2018-01-28 | 2018-01-28 | Control system for domestic cooking appliances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302566A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201462988U (en) * | 2009-06-09 | 2010-05-12 | 樱花卫厨（中国）股份有限公司 | Zero-second ignition implementation circuit for gas stove igniter |
| CN101968233A (en) * | 2010-11-19 | 2011-02-09 | 成都前锋电子电器集团股份有限公司 | Control system for domestic cooking appliances |
| CN202056932U (en) * | 2011-04-29 | 2011-11-30 | 南京天富实业有限公司 | Energy storage instantaneous attraction type gas stove pulse ignition controller |
| CN204853577U (en) * | 2015-08-08 | 2015-12-09 | 何智勇 | Gas -cooker controller |
| CN107062317A (en) * | 2017-06-18 | 2017-08-18 | 叶碧波 | Gas utensil light sensation detects anti-backfire method and a kind of light sensation detection anti-backfire pulse igniter |
-
2018
- 2018-01-28 CN CN201810080819.1A patent/CN108302566A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201462988U (en) * | 2009-06-09 | 2010-05-12 | 樱花卫厨（中国）股份有限公司 | Zero-second ignition implementation circuit for gas stove igniter |
| CN101968233A (en) * | 2010-11-19 | 2011-02-09 | 成都前锋电子电器集团股份有限公司 | Control system for domestic cooking appliances |
| CN202056932U (en) * | 2011-04-29 | 2011-11-30 | 南京天富实业有限公司 | Energy storage instantaneous attraction type gas stove pulse ignition controller |
| CN204853577U (en) * | 2015-08-08 | 2015-12-09 | 何智勇 | Gas -cooker controller |
| CN107062317A (en) * | 2017-06-18 | 2017-08-18 | 叶碧波 | Gas utensil light sensation detects anti-backfire method and a kind of light sensation detection anti-backfire pulse igniter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180720 |