CN206617979U - A kind of dry heating preventing alarm device - Google Patents

Abstract

The utility model discloses a kind of dry heating preventing alarm device, including controller, infrared sensor, steam detector, gas security, wireless communication module, timer, valve and Control drive circuit, loudspeaker and power supply adaptor.Pan temperature change during using infrared sensor, steam detector to hotting plate and whether there is steam and carry out detection analysis, judge whether to occur water in dry combustion method or pot to overflow, gas security can recognize gas-tight, communication is carried out with remote equipment such as mobile phone by loudspeaker or wireless communication module and sends reminding alarm, remind whether cooking time arrives a little by timer simultaneously, coordinate valve to be exported with Control drive circuit and close pan firepower to external relay or electronic valve.So as to avoid dry combustion method, spilling water, accident caused by gas leakage from occurring, have to the internal common grill pan without functions such as timing, temperature controls and gas cooker adds function of safety protection.

Description

A kind of dry heating preventing alarm device

Technical field

The utility model is related to a kind of be placed on before kitchen range and is used to hot plate safety prompt function and the device of alarm, especially prevents Only the alarm of dry combustion method occurs for cooking.

Background technology

People are often encountered when being cooked and being cooked using gas-cooker and kitchen appliance to be too busy to do it or leaves kitchen and forget The fire or electric power closed on pot and stove, time for boiling is oversize to cause food to overdo too rotten or dry combustion method, when not noticed for gas-cooker The soup spill that may be allowed in pot has buried in oblivion flame, the generation for causing gas leakage etc. dangerous, and dry combustion method can cause kitchen range to damage It is bad danger even occur.In order to prevent such unexpected generation, as some electric cookers, electric steamer add burning prevention function and fixed When closing function, using temperature-sensitive element in dry combustion method cooking bottom temperature increase triggers circuit disconnect or timing power off, but this A little functions can only be limited in the electrical equipment pan, for ordinary pan, be especially for use in pan above gas-cooker just without timing, The functions such as anti-dry, waterproof spilling, and exactly there is firepower using gas cooking can not automatically adjust greatly, easily cause dry combustion method Or water overflow etc. phenomenon.

The content of the invention

Easily cause that water in pot is overflowed and food dry combustion method is asked when cooking and cooking using common pan to solve people Topic, the utility model will provide it is a kind of when spilling water and dry combustion method can occur to any pan used in cooking process all The alarm of the measures such as prompting can be made.

The technical solution adopted in the utility model is：One be positioned over isolate with pan beside pot and stove one section of space prevent do Alarm is burnt, by controller, infrared sensor, two steam detectors, gas security, wireless communication module, timer, valves Door is constituted with Control drive circuit, loudspeaker and power supply adaptor；Wherein steam detector have two namely for The Vapor detection and the Vapor detection of pot bottom of pot top surface, respectively by the photodiode array group of the optical lens of front end, rear end Into sensor devices, the luminous tube of the outside irradiation light in front end and conversion output circuit constitute, the optical lens of front end is used to limit Visual angle processed and focusing, the steam produced when the light that luminous tube is sent is used to irradiate boiling on pot can obtain bright by sensor devices Aobvious steam image, the steam detector of pot top surface to pot top surface visual angle to covering edge, the steam detector pair of pot bottom To pot bottom, the steam to relevant position with the presence or absence of evaporation is detected respectively, when pot top surface or pot bottom have steam to emerge Generation is bright reflective when being irradiated by the light of luminous tube, will form what is flowed up in pot top surface or pot bottom steam detector Steam image becomes the converted output circuit output of electric signal；The optical system visual angle of infrared sensor is right to the top surface to pot Pot top surface temperature is measured；The circuit connecting relation of above device is that the thermal information input of controller connects infrared sensing The conversion output circuit of the steam detector of device, two steam information input terminal connection pot top surfaces and pot bottom, the combustion of controller Gas composition information input connects gas security, the data output end connection wireless communication module of controller, timer connection The timing signal input end of controller, loudspeaker connects the audio output of controller, valve and Control drive circuit Connect each more than the Electromechanical Control output end of controller, power adapter voltage output connection device circuitry.When pot top surface has Illustrate to be in normal cooking food in pot during steam, and bottom has steam then to represent the water in pot to spill on pot and stove to be evaporated.And Infrared sensor measures temperature and change using the heat radiation of pot face, and electric signal is transmitted to controller analysis, there is enough water in pot Part normal pot face temperature when hotting plate is not more than some value, and when temperature is reduced even without steaming higher than some value and pot face steam Prove that water shortage will enter dry-fire condition in pot during vapour.Also will when gas security measures the gas leakages such as coal gas or liquefied gas Information transfer is to controller.Timer sends timing information when being used to set culinary art reminder time manually to point.The above is detected Information and timing information enter controller analyzing and processing send prompting, alarm or shutdown signal, mode include loudspeaker Audible alarm and it is sent to by radio in the equipment such as mobile phone and carries out remote-end alarm, while can also passes through valve and relay control Electronic valve device that drive circuit processed control is attached on burnt gas valve is connected with the grill pan tool of relay to make closing dynamic Make.

The beneficial effects of the utility model are：Alarm need not be arranged on above pot or internal, make gas-cooker and ordinary pan Also can have anti-dry and water overflow alarm and cooking timing prompting function, it is to avoid vegetable edible, which is boiled, badly wastes and cause gas leakage Or the danger of dry combustion method.

Brief description of the drawings

With reference to embodiment and accompanying drawing, the utility model is described in further detail.

Fig. 1 is the present embodiment external structure and uses schematic diagram.

Fig. 2 is circuitry block schematic diagram of the present utility model.

Embodiment

As shown in figure 1, merely just using gas-cooker pan as embodiment, for the use principle also phase of electrical equipment pan Together.On the kitchen sink, dry heating preventing alarm device support 1 is installed on wall 4, with gas burning pot stove 5 and pot 6 at a distance of one section tens centimetres Distance, is in the back upper place of pot 6, and support 1 has the infrared sensor 2 of cylindrical housing, two steamings of pot top surface and pot bottom above Vapor detector 3 is arranged by upper, middle and lower position, is fixed by respective chain extension bar 10 before it, there is rotating shaft the front and back end of chain extension bar 10 It is linked to so that infrared sensor 2, steam detector 3 can be with adjustable visual angle degree.About 30 degree allowed inside infrared sensor 2 are regarded The optical system of angular region is directed at the pot cover top surface of pot 6.It is in the horizontal pendulum of pot top surface steam detector 3 in the centre position of support 1 Put, about 45 degree of internal visual angle optical lens are to the top of pot 6, being arranged in one 40 of the preceding lower end of steam detector 3 The light that the LED 33 of five degree of illumination angles is sent is emitted onto the whole pot cover edge of surface radiation on pot 6.And it is in support 1 The pot bottom steam detector 3 of lowermost position is overlooked towards pot 6 and tilted, and internal about 45 degree of visual angle optical lens are to pot 6 bottom, the light that 45 degree of illumination angle LEDs 33 of preceding lower end are sent is emitted onto the bottom pot and stove 5 of pot 6 Above.The steam that pot soup that is upper or overflowing flows to the bottom of a pan with being produced on pot and stove 5 when luminous tube 33 is used to irradiate boiling is allowed to Generation is bright reflective, allows the sensor devices of steam detector 3 to obtain obvious steam signal of video signal.There is a hand on support 1 On dynamic rotary-switch timer 14 plate forward-mounted, startup timer 14 is efficiently and easily rotated during for cooking and is worked. The internal structure principle of above infrared sensor 2 is not illustrated here compared with technology.

Circuit catenation principle of the present utility model is as shown in Figure 2.Dry heating preventing alarm device by controller 11, infrared sensor 2, Two steam detectors 3, gas security 12, blue tooth wireless communication module 13, manual rotary switch formula timer 14, valve with Control drive circuit 15, loudspeaker 17 and power supply adaptor 16 are constituted.Two steam detectors therein are pin respectively Steam detector 3 to pot top surface and the steam detector 3 for pot bottom, circuit structure are defeated including sensor devices 31, conversion Go out circuit 32 and LED 33, the wherein line such as data of sensor devices 31 is connected on conversion output circuit 32, and LED lights Two positive and negative electrodes of pipe 33 are connected to the voltage end of conversion output circuit 32.The circuit connecting relation of each device is to control above The thermal information input connection infrared sensor 2 of device 11 processed, the steaming of two steam information input terminal connection pot top surfaces and pot bottom The conversion output circuit 32 of vapor detector 3, the gas component information input terminal connection gas security 12 of controller 11, controller 11 data output end connection wireless communication module 13, timer 14 connects the timing signal input end of controller 11, loudspeaker The audio output of 17 connection controllers 11, valve is connected controller 11 with the control signal of Control drive circuit 15 Electromechanical Control output end, and valve be connected with one group of two groups of control output ends of Control drive circuit 15 one it is outer Portion's relay 18 is used for the power supply of device for switching pan, and the output end of relay 18 can connect a socket, electrical equipment pan Attaching plug is inserted in controlled on the socket, and another group of control output end, which connects an external electrical valve 19, to be used to automatically control combustion More than the valve closure of gas kitchen, the connection of the voltage output of power supply adaptor 16 voltage end of each device circuitry.Pass through cell phone software Can be wireless the controller 11 of the present embodiment, carry out some necessary function settings, whether such as timer closes when time is up Pot and stove firepower.The dry combustion method, water that are detected are overflowed the information input controllers 11 such as pot, gas leakage, timing by above circuit to be analyzed Processing can by loudspeaker alarm point out or by blue tooth wireless communication to mobile phone send prompting or alarm signal, realize people from Pot and stove can also be looked after by opening kitchen.

Claims (1)

1. a kind of dry heating preventing alarm device, including thermoelectric sensing device, control circuit, power supply adaptor, it is characterized in that：Anti-dry report Alert device is positioned over pot and stove（5）Side and pan（6）Isolate one section of space, by controller（11）, infrared sensor（2）, pot top surface With two steam detectors of pot bottom（3）, gas security（12）, wireless communication module（13）, timer（14）, valve with after Electrical equipment control drive circuit（15）, loudspeaker（17）And power supply adaptor（16）Composition, steam detector by front end optical frames The sensor devices of head, the photodiode array composition of rear end（31）, front end luminous tube（33）With conversion output circuit（32） Constitute, the steam detector of pot top surface（3）Visual angle is to pot（6）Top surface, the steam detector of pot bottom（3）Visual angle is to pot （6）Bottom, infrared sensor（2）Visual angle to pot（6）Top surface, controller（11）Thermal information input connection infrared sensing Device（2）, the steam detector of two steam information input terminals connection pot top surfaces and pot bottom（3）Conversion output circuit（32）, Controller（11）Gas component information input terminal connection gas security（12）, controller（11）Data output end connection nothing Line communication module（13）, timer（14）Connect controller（11）Timing signal input end, loudspeaker（17）Connect controller （11）Audio output, valve and Control drive circuit（15）Connect controller（11）Electromechanical Control output end, Power supply adaptor（16）Each more than voltage output connection device circuitry.