CN206875489U - Gas-cooker and its anti-dry speech prompting device - Google Patents

Abstract

The utility model discloses a kind of gas-cooker and its anti-dry speech prompting device, anti-dry speech prompting device includes：Anti-dry detection means, cooking bottom temperature is detected in real time and when judging that the cooking bottom temperature reaches dry combustion method temperature, dry combustion method signal corresponding to generation；And speech prompting device (500), send dry combustion method voice reminder when receiving the dry combustion method signal.In the utility model, anti-dry detection means can detect cooking bottom temperature in real time and when judging that cooking bottom temperature reaches dry combustion method temperature, speech prompting device is driven to send dry combustion method voice reminder, dry combustion method signal can be also externally sent by WIFI reception devices, while main gas valve and branch valve etc. are closed when receiving dry combustion method signal by switch module.When dry combustion method occurs can the very first time, directly and quickly send dry combustion method voice reminder, this can shorten the human brain reaction time, quickly carry out emergent management for user and gain time, and avoid causing culinary art to fail, or even generation of preventing accident.

Description

Gas-cooker and its anti-dry speech prompting device

Technical field

The utility model belongs to field of kitchen electric appliance, in particular it relates to a kind of gas-cooker and its anti-dry voice reminder dress Put.

Background technology

The development of gas kitchen ranges increasingly safety-sensitive the problem of, but many safety feedback functions are not very straight at present See, particularly when gas-cooker user is mostly middle-aged and old in family.For example, common gas-cooker more be equipped with configuration buzzer with The buzzing alarm of drop drop is produced in gas leakage, reminds user the situation of gas alarm occur.Although this has certain gas leakage Prompting effect, but feedback effects are not directly perceived, because gas leakage, which is not normal probability, occurs event, once gas leakage occurs, use Family does not know what meaning drop drop sound represents, and has a certain degree of maloperation event and occurs, it is impossible to provides the user with accurately Fault message is to instruct user to make next step operational motion, or even easily ignores buzzing alarm by user.

And the adjoint age increases, middle-aged and old visual impairments, amnesia is multiple, and reagency declines, individually visual Change or the feedback effects of simple buzzer can not meet the needs of person in middle and old age user, and need multi-angle is many-sided to carry out more Multi-functional increase is reminded, quicklook is reminded, to obtain immediate response.For example, struck sparks by rotation process coal gas rotary valve Or Guan Huoshi, user easily ignores success of whether lighting a fire, or whether normally closes fire success, or even have ignored improper pass fire Deng.In addition, existing kitchen range electricity is typically shown without electricity, or increase a mark for display electricity, electricity on the panel of kitchen range Meeting bright light when measuring low, but feedback effects are also not directly perceived, are easily ignored by user, cause battery altering not in time.In addition, If user, when using kitchen range Baoshang, people is not beside user, and that something unexpected happened is flame-out for kitchen range, but user does not know now Kitchen range stopped work, and the time of culinary art has been have impact on when finding.

Utility model content

For the drawbacks described above or deficiency of prior art, the utility model provides a kind of gas-cooker and its anti-dry voice Alarm set, dry combustion method voice reminder can be directly and quickly sent when dry combustion method occurs, allows user quickly to be carried out Emergent management, generation of preventing accident.

To achieve the above object, the utility model provides a kind of anti-dry speech prompting device for gas-cooker, institute Stating device includes：

Anti-dry detection means, cooking bottom temperature is detected in real time and when judging that the cooking bottom temperature reaches dry combustion method temperature, it is raw Into corresponding dry combustion method signal；And

Speech prompting device, the anti-dry detection means is electrically connected, dry combustion method is sent when receiving the dry combustion method signal Voice reminder.

Preferably, the speech prompting device includes speech chip and loudspeaker, when receiving the dry combustion method signal, institute Loudspeaker described in predicate sound chip drives sends the dry combustion method voice reminder.

Preferably, the speech prompting device also includes encapsulating housing, and the speech chip and loudspeaker are arranged on described In encapsulating housing, the encapsulating housing is independently installed in the housing of the gas-cooker.

Preferably, the anti-dry speech prompting device also includes dry combustion method indicator lamp, and the dry combustion method indicator lamp is receiving Opened during the dry combustion method signal and reveal waming color.

Preferably, the dry combustion method indicator lamp is arranged to close in the anti-dry detection means failure.

Preferably, the anti-dry detection means includes：

Dry-burning preventing sensor, the burner of the gas-cooker is arranged on to detect the cooking bottom temperature in real time, and send the bottom of a pan Temperature detection signal；And

The controller, the cooking bottom temperature detection signal is received, and according to cooking bottom temperature detection signal judgement pair Whether the cooking bottom temperature answered reaches the dry combustion method temperature of dry-fire condition, and the dry combustion method is generated when reaching the dry-fire condition Signal.

Preferably, the gas-cooker includes pulse igniter, and the controller is provided with the pulse igniter.

Preferably, the anti-dry speech prompting device also includes WIFI reception devices, and the controller is also by described WIFI reception devices externally send the dry combustion method signal.

In addition, the utility model additionally provides a kind of gas-cooker, including described at least one burner, control correspondingly The main valve of the fuel gas supply of at least one branch valve of the fuel gas supply of burner burner all with control, the gas-cooker Also include the above-mentioned anti-dry speech prompting device for gas-cooker.

Preferably, the gas-cooker also includes switch module, and the switch module closes when receiving the dry combustion method signal Close the main valve and the branch valve.

In gas-cooker of the present utility model, anti-dry detection means can detect cooking bottom temperature in real time and judge the bottom of a pan temperature When degree reaches dry combustion method temperature, speech prompting device is driven to send dry combustion method voice reminder.Further, it can also be received and filled by WIFI Put and externally send dry combustion method signal, while main gas valve and branch valve etc. are closed when receiving dry combustion method signal by switch module, To prevent accident.Wherein, when dry combustion method occurs can the very first time, directly and quickly send dry combustion method voice reminder, this energy Enough shorten the human brain reaction time, quickly carrying out emergent management for user gains time, and avoids causing culinary art to fail, even Prevent accident generation.

Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.

Brief description of the drawings

Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.In the accompanying drawings：

Fig. 1 is the front view according to the gas-cooker of preferred embodiment of the present utility model；

Fig. 2 is the assembling explosive view of the gas-cooker shown in Fig. 1；

Fig. 3 is the top view of the base section of the gas-cooker shown in Fig. 2；

Fig. 4 is the stereogram of speech prompting device；

Fig. 5 is the explosive view of Fig. 4 speech prompting device；

Fig. 6 is the stereogram of indicator lamp；

Fig. 7 is the functional block between each funtion part in the gas-cooker according to preferred embodiment of the present utility model Figure, which illustrates the signal transitive relation between each funtion part；

Fig. 8 a~Fig. 8 f show that gas leakage detection and phonetic alarm device, low battery voice carry with specific example respectively Awake device, accident extinguishing detection and warning device, normally close fiery speech prompting device, anti-dry speech prompting device and igniting mistake Lose the workflow diagram of speech prompting device；And

Fig. 9 a~Fig. 9 h illustrate MCU chip, coal gas detection circuit module, voice output circuit module, low battery successively Prompting module, potentiometer detection circuit, thermocouple detect the circuit of circuit, dry combustion method detection circuit and jogging switches measurement circuit Figure.

Description of reference numerals

The loudspeaker of 1 speech chip 2

The gas detectors of 3 encapsulating housing 4

5 indicator lamps

The pulse igniter of 100 battery 200

The coal gas rotary valve of 300 burner 400

The housing of 500 speech prompting device 600

The switch module of 700 glass panel 800

The temperature-sensitive thermocouple of 201 controller 301

The valve rod rotation angle detector of 302 dry-burning preventing sensor 401

Embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.

In the utility model, in the case where not making opposite explanation, the noun of locality such as " upper and lower, top, bottom " used is generally It is each part mutual alignment either on vertical, vertical or gravity direction for direction shown in the drawings Relationship description word." inside and outside " is commonly referred to as the inside and outside mutual alignment relation word for gas-cooker cavity.

With reference to shown in Fig. 1~Fig. 3, the utility model provides a kind of gas-cooker, including top section and base section, top Portion part includes glass panel 700, and base section includes each function element of housing 600 and its interior installation.It is visible referring to Fig. 3, Battery 100, pulse igniter 200 are provided with gas-cooker, to control the igniting of the pulse ignition device of burner 300, coal gas rotation Valve 400 supplies user's rotation process to control coal gas conducting, valve opening, sparking etc. manually.

Especially, gas-cooker of the present utility model is integrated with including gas leakage detection and phonetic alarm device, low battery Speech prompting device, accident extinguishing detection and warning device, normally close fiery speech prompting device, anti-dry speech prompting device and At least one of loss of ignition speech prompting device.By speech prompting device 500, extra phonetic function can be achieved and carry Wake up.The intuitive of voice reminder is strong, and acceptance is high, and user can will immediately appreciate that where caused failure, problem.To such as combustion gas The extra voice reminder of the carry out such as leakage, low battery, anti-dry, can allow the obtaining information of user's quicklook, and locate at once instantly Reason.In addition, for accident extinguishing, normal pass fire, loss of ignition etc., existing gas-cooker is all prompted without correlation or warning, but Certain customers (especially person in middle and old age user) have demand to this, thus the utility model can provide more multi-functional voice reminder, Greatly facilitate user use, may also be combined with prompting, remote prompting of indicator lamp 5 explained below etc., though allow user from Gas-cooker has been opened, can also obtain instant messages, has carried out emergency processing.

Specifically, gas-cooker includes controller 201 and speech prompting device 500, and referring to Fig. 5, speech prompting device includes Speech chip 1 and loudspeaker 2, speech chip 1 receive controller 201 send function alerting signal (such as gas leakage letter Number) afterwards driving loudspeaker 2 send prompting voice (such as the combustion gas corresponding to gas leakage signal corresponding with function alerting signal Voice is reminded in leakage, such as " drop, drop, drop, gas leakage, please close valve in time ").

Gas leakage detection and phonetic alarm device, low battery speech prompting device, accident extinguishing inspection are only schematically illustrated above Survey and warning device, normally close fiery speech prompting device, anti-dry speech prompting device and loss of ignition speech prompting device and be total to Six kinds of functional devices, but the utility model not limited to this, other more functional devices can be included.Each functional device can share Controller 201, specific in gas-cooker structure, the MCU chip in pulse igniter 200 may act as each functional device (see Fig. 9 a) Controller 201.

Fig. 4 is the stereogram of speech prompting device 500, is individual packages.Referring to Fig. 5, between the upper and lower covers of encapsulating housing 3 Speech chip 1 and loudspeaker 2 are packaged with, power interface, and sound outlet, thermovent etc. are covered with encapsulating housing 3.Combustion The bottom of housing 600 of gas kitchen can open up insertion mounting hole, and the speech prompting device 500 of individual packages is installed on insertion mounting hole In, stretch into the inner chamber of housing 600 of gas-cooker.Specifically, Elastic buckle can be set in the periphery wall of encapsulating housing 3, is pacified with buckle On housing 600.Because speech prompting device 500 is independently installed and stretches into gas-cooker inner chamber, thus especially, speech chip The probe of gas detectors 4 is also integrated with 1, in order to detect the gas concentration in gas-cooker inner chamber, i.e. detection combustion gas in real time Leakage, will also be specifically described below.

Fig. 6 is the stereogram of indicator lamp.Indicator lamp 5 can have it is a variety of, such as with a pair of above-mentioned six kinds of functional devices 1 The six kinds of indicator lamps answered, such as gas leakage indicator lamp, low battery indicator lamp.Indicator lamp 5 is usually bi-colour light, such as including Normal work color (green) and alarm color (red), on lamp socket, the bottom surface of glass panel 700 is arranged on through support On.Connecting line and plug are stretched out in the bottom of lamp socket, to connect power supply.So, when any one functional device starts, through voice While prompting, prompting can be synchronized by corresponding indicator lamp 5, be more convenient user.In addition, when in each function alarm set Any one produce failure when, its corresponding indicator lamp 5 should close, so that user discovers.

Gas-cooker of the present utility model may also include WIFI reception device (not shown), and controller 201 can pass through WIFI reception devices send the wireless alarm signal corresponding with above-mentioned function alerting signal.So, even if user is away from combustion Gas kitchen, also related prompting message can be obtained by the application program (i.e. cell phone application etc.) of other-end (such as mobile phone), in time hair Now with solve problem.Electrically connected in addition, can also be installed on gas-cooker with controller 201 and speech prompting device 500 and external Gas leak detector (not shown), when gas leakage be present in the external space (such as kitchen) of gas-cooker, gas leak detector Prompting can be sent by speech prompting device 500, WIFI reception devices etc..

Below with reference to Fig. 7, Fig. 8 a~Fig. 8 e and Fig. 9 a~Fig. 9 h, illustrate that above-mentioned gas leakage is examined with specific example Survey and phonetic alarm device, low battery speech prompting device, accident extinguishing detection and warning device, normally close fiery voice reminder dress Put, the structure composition and its course of work of anti-dry speech prompting device and loss of ignition speech prompting device.

First, gas leakage detection and phonetic alarm device

Gas leakage detects and phonetic alarm device includes：

Gas leakage detection means, in real time monitoring reveal gas concentration and judge to reveal whether gas concentration value is more than setting Concentration value, when revealing gas concentration value more than setting gas concentration value, gas leakage signal corresponding to generation；

Speech prompting device 500, gas leakage detection means is electrically connected, combustion gas is sent when receiving gas leakage signal Reveal voice reminder.

Wherein, gas leakage detection means may include：

Gas detectors 4, monitor in real time in gas-cooker and reveal gas concentration and according to the leakage gas concentration value of monitoring Detection signal corresponding to generation is sent to gas leakage comparator；

Gas leakage comparator, detection signal is compared with baseline threshold, and comparative result is sent into controller 201； And

Controller 201, judged to reveal whether gas concentration value is more than setting gas concentration value according to comparative result, and let out When revealing gas concentration value more than setting concentration value, gas leakage signal is generated.

Referring to Fig. 7, gas leakage detection and audio alert are related to gas detectors 4, speech prompting device and controller 201 Between communication and data processing, or even including switch module 800.

Gas detectors 4 include gas detectors 4 and probe, in the probe internally provided speech prompting device 500 in encapsulation with Combustible gas concentration value around real-time monitoring detector, the specific example of the coal gas detection circuit module of gas detectors 4 is as schemed Shown in 9b, it is integrated in pulse igniter 200.Coal gas detection circuit module generates corresponding according to the leakage gas concentration value of monitoring Detection signal, such as Fig. 9 b output voltage signal A.The pulse igniter 200 for being integrated with controller 201 and comparator receives After output voltage signal A, by output voltage signal A compared with the baseline threshold (magnitude of voltage) corresponding to setting gas concentration value Compared with so as to be judged to reveal whether gas concentration value is more than setting gas concentration value according to comparative result, and in leakage gas concentration When value is more than setting concentration value, gas leakage signal is generated, i.e., is corresponded to and is exported wherein by Fig. 9 c voice output circuit module A kind of voltage signal B to speech chip 1, after speech chip 1 receives and identifies voltage signal B, driving loudspeaker (raise one's voice Device) 2, play corresponding gas leakage voice reminder.

Referring to Fig. 8 a, to avoid judging by accident, when detecting combustion gas, it can first judge whether flammable gas concentration changes.Work as generation Gas concentration change when, just further monitoring gas concentration whether reach setting gas concentration value, such as 10%~20% it is quick-fried Fried lower limit gas concentration (LEL).

As it was previously stated, gas leakage speech prompting device may also include gas leakage indicator lamp, gas leakage indicator lamp exists Opened when receiving gas leakage signal and reveal waming color.Moreover, gas leakage indicator lamp may be configured as examining in gas leakage Closed when surveying plant failure.

While the voice reminder and/or light prompting of gas leakage is carried out, corresponding urgent automatic place should be also carried out Reason.As shown in fig. 7, gas-cooker includes the gas valve and switch module 800 of control fuel gas supply, the gas valve may include one by one Accordingly control at least one branch valve of the fuel gas supply of each burner 300 and control the fuel gas supply of all burners 300 Main valve, switch module 800 electrically connects gas leakage detection and phonetic alarm device and for receiving gas leakage signal When cut off all gas valves, to ensure safety.

2nd, low battery speech prompting device

For the low battery speech prompting device of gas-cooker, including：

Battery electric quantity checking device, battery electric quantity is detected in real time and low battery signal is generated in low battery；And

Speech prompting device 500, battery electric quantity checking device is electrically connected, low battery is sent when receiving low battery signal Voice reminder.

Wherein, speech prompting device 500 includes speech chip 1 and loudspeaker 2, and speech chip 1 and loudspeaker 2 are arranged on envelope Fill in housing 3, encapsulating housing 3 is independently installed in the housing 600 of gas-cooker.Battery electric quantity checking device may also include battery electricity Amount instruction lamp, battery electric quantity indicator lamp reveal waming color when receiving low battery signal.Battery electric quantity indicator lamp is also configured to Failure color is shown in battery electric quantity checking device failure.

Wherein, battery electric quantity checking device may include：

Battery voltage detection circuit, the magnitude of voltage for detecting the both ends of battery 100 in real time concurrently send voltage value signal to battery electricity Measure comparator；

Battery electric quantity comparator, the voltage value signal of detection is received and compared with setting voltage threshold, by comparative result Send controller 201；

Controller 201, judge whether battery 100 is in low battery state according to comparative result, and judging at battery 100 Low battery signal is generated when low battery state.

Referring to Fig. 7, low battery speech prompting device is related to battery 100 including the voice of speech chip 1 and loudspeaker 2 carries The communication and data processing waken up between device and controller 201.

Specifically, electrically connected with reference to Fig. 8 b, pulse igniter 200 with battery 100, MCU is integrated with pulse igniter 200 Chip and the low battery prompting module including battery voltage detection circuit, can gather battery in real time by battery voltage detection circuit The magnitude of voltage at 100 both ends and by independent comparator or the comparison circuit being integrated in controller compared with setting voltage threshold Compared with.Setting voltage threshold is, for example, 0.7 times of load voltage value of battery 100, during less than setting voltage threshold, is considered as low electricity Amount.

Now, controller 201 generates low battery signal, is exported by the amplifier of the low battery prompting module shown in Fig. 9 d Corresponding voltage signal C, light corresponding low battery indicator lamp.Meanwhile a kind of electricity therein is correspondingly exported by Fig. 9 c circuits Pressing signal B1 (corresponding to low battery signal), after speech chip 1 receives and identifies voltage signal B1, driving is expanded to speech chip 1 Sound device (i.e. loudspeaker) 2, play corresponding low battery voice reminder.

Similarly, low battery speech prompting device can also externally send low battery signal by WIFI reception devices.

3rd, accident extinguishing detection and warning device

Accident extinguishing detects and warning device, including：

Accident extinguishing detection means, pass through valve rod rotation angle detector 401 (such as potentiometer, encoder or microswitch Deng) judge whether coal gas rotary valve 400 is in valve opening state, and judge whether burner 300 stops working by temperature-sensitive thermocouple 301, When judgement coal gas rotary valve 400 is in valve opening state and burner 300 stops working, accident extinguishing signal corresponding to generation；And

Accident extinguishing warning device, accident extinguishing detection means is electrically connected, meaning is sent when receiving accident extinguishing signal Outer flame-out alarm.

Wherein, accident extinguishing detection means includes：

Valve rod rotation angle detector 401, the rotary angle position of the valve rod of detection coal gas rotary valve 400 simultaneously send rotation Angle position signal；

Temperature-sensitive thermocouple 301, sense the temperature of burner 300 and send electromotive force signal；

Controller 201, rotary angle position signal and electromotive force signal are obtained in real time, and be in rotary angle position signal Non-zero-degree rotary angle position signal and electromotive force signal are decreased below lower pre- from the high level state more than upper predetermined threshold When determining the low level state of threshold value, accident extinguishing signal corresponding to generation.

Referring to Fig. 7, accident extinguishing detection and warning device are related to valve rod rotation angle detector 401, temperature-sensitive thermocouple 301st, including communication and data processing between the speech prompting device and controller 201 of speech chip 1 and loudspeaker 2, very To being related to switch module 800.

Generally, lower predetermined threshold is set as 1mV.Valve rod rotation angle detector 401 in present embodiment uses current potential Device, therefore valve rod rotation angle detector 401 includes being arranged on the potentiometer probe at valve rod and is integrated in pulse igniter 200 In potentiometer detection circuit.

Understood with reference to Fig. 8 c, rotary angle position can be obtained by detecting circuit by the specific potentiometer shown in Fig. 9 e, be sent out Go out rotary angle position signal (voltage signal D1 corresponding to being converted to) to export to controller.Likewise, temperature-sensitive thermocouple 301 wraps The thermocouple detection circuit for including the thermocouple probe being arranged at burner 300 and being integrated in pulse igniter 200.Pass through Fig. 9 f Shown specific thermocouple detection circuit can sense the temperature of burner 300 and send electromotive force signal (voltage letter corresponding to i.e. Number E).

Controller 201 obtains above-mentioned rotary angle position signal and electromotive force signal in real time, in rotary angle position signal For non-zero-degree rotary angle position signal when, it is valve opening state to show coal gas rotary valve 400, in electromotive force signal from pre- more than upper When determining the high level state of threshold value (such as 2mV) and being decreased below the low level state of lower predetermined threshold, show that burner stops working, this When controller control generation corresponding to accident extinguishing signal, i.e., give voice core by voltage signal B2 corresponding to Fig. 9 b circuit outputs Piece 1, after speech chip 1 receives and identifies voltage signal B2, driving loudspeaker 2 plays corresponding accident extinguishing voice reminder.

Similarly, accident extinguishing detection and warning device may also include WIFI reception devices, and unexpected put out externally is sent by it Fiery signal, it can be transmitted in such as cell phone application, with remote monitoring.When receiving accident extinguishing signal, not only speech chip 1 Driving loudspeaker 2 sends accident extinguishing audio alert, and accident extinguishing indicator lamp is also opened and reveals waming color.Accident extinguishing indicates Lamp is also configured as closing in unexpected extinguishing detecting device failure.

, it is necessary to valve body after accident extinguishing occurs.As shown in fig. 7, switch module 800 is receiving accident extinguishing letter Number when can close pulse igniter 200, main valve and branch valve etc., to prevent more gas leakages, avoid generation from igniting blast Deng.

4th, fiery speech prompting device is normally closed

Fiery speech prompting device is normally closed, including：It is normal to close fire detection device, pass through valve rod rotation angle detector 401 Judge that coal gas rotary valve 400 whether in closing valve trend state and whether closing valve in place, is in judgement coal gas rotary valve 400 When closing valve trend state and closing valve in place, fiery signal is normally closed corresponding to generation；And

Speech prompting device 500, normal pass fire detection device is electrically connected, is sent when receiving and normally closing fiery signal normal Close fiery voice reminder.

Wherein, normally close fiery speech prompting device and may also include and normally close fiery indicator lamp, normally close fiery indicator lamp and receiving To being opened when normally closing fiery signal and reveal normal work color.Normally closing fiery indicator lamp can be further arranged to close fire inspection normal Warning color is switched to when surveying plant failure.

Wherein, normally closing fire detection device may include：

Valve rod rotation angle detector 401 (such as potentiometer), the rotary angle position of the valve rod of detection coal gas rotary valve 400 And at least send the second rotary angle position signal behind the first rotary angle position signal of original state, setting time interval And trigger signal in place is closed in triggering in zero degree rotary angle position；

Controller 201, become according to the change of the first rotary angle position signal to the second rotary angle position signal Whether gesture judges coal gas rotary valve 400 in pass valve trend state, and is judging in pass valve trend state and receiving When closing trigger signal in place, fiery signal is normally closed in generation.

Referring to Fig. 7, normally close fiery speech prompting device and only relate to valve rod rotation angle detector 401 and include speech chip Communication and data processing between 1 and the speech prompting device and controller 201 of loudspeaker 2.

Preferably, setting time is at intervals of 0.1s~0.5s.One in front and one in back two valve rod rotary angle positions are obtained, can be sentenced Disconnected whether be in closes valve trend state.Understood with reference to Fig. 8 d, such as can by the specific potentiometer detection circuit shown in Fig. 9 e The first rotary angle position of previous moment and the second rotary angle position of later moment in time are obtained, sends the corresponding anglec of rotation Position signalling (voltage signal D2 and D3 corresponding to i.e.) give controller.By first rotary angle position for representing previous moment Voltage signal D2 would know that whether coal gas rotary valve 400 is in valve opening state, that is, judge whether the first rotary angle position is non- Zero degree rotary angle position.Whether trend and trend are changed by voltage signal D2 to D3, can determine that no in pass valve trend State.For example, zero degree rotary angle position is close valve state, the second rotary angle position representated by voltage signal D3 is less than electricity When pressing the first rotary angle position representated by signal D2, it can determine that to close valve trend state.

This judgement can be realized by single comparator, such as can be by judging former and later two voltage signals D2's and D3 Size, it is no in pass valve trend state so as to judge.Certainly, the logic circuit of the judgement of above-mentioned pass valve trend can be also integrated in In controller.This is known to the skilled person technology, not described in detail herein.When in pass valve trend, controller is lasting Trigger signal in place is closed in collection, and trigger signal in place is closed collecting (i.e. Fig. 9 e circuits send corresponding voltage signal D5) When, show that coal gas rotary valve 400 is closed in place, normally close fiery signal corresponding to now controller generation, that is, pass through Fig. 9 b circuits Voltage signal B3 corresponding to exporting is to speech chip 1, and after speech chip 1 receives and identifies voltage signal B3, driving loudspeaker 2 is broadcast Put and normally close fiery voice reminder accordingly.

Especially, to prevent false triggering erroneous judgement etc., normal pass fire detection device of the present utility model is also configured to can When setting rotary angle position, triggering begins to shut off trigger signal (i.e. Fig. 9 e circuits send corresponding voltage signal D4)；Setting Rotary angle position is, for example, 20 ° of rotary angle positions, and now coal gas rotary valve 400 is begun to shut off, and has substantially shut off burner 300 Gas supply.Therefore, controller 201 is additionally configured to judging in pass valve trend state and starting to close continuously receiving When closing trigger signal and closing trigger signal in place, fiery signal is normally closed in generation.

Fiery signal is normally closed likewise, normally closing fiery speech prompting device and also can externally be sent by WIFI reception devices.

5th, anti-dry speech prompting device

Anti-dry speech prompting device includes：

Anti-dry detection means, cooking bottom temperature is detected in real time and when judging that cooking bottom temperature reaches dry combustion method temperature, generation pair The dry combustion method signal answered；And

Speech prompting device 500, electrically connects anti-dry detection means, and sending dry combustion method voice when receiving dry combustion method signal carries Wake up.

Wherein, speech prompting device 500 includes speech chip 1 and loudspeaker 2, and speech chip 1 and loudspeaker 2 are arranged on envelope Fill in housing 3, encapsulating housing 3 is independently installed in the housing 600 of gas-cooker.When receiving dry combustion method signal, speech chip 1 drives Dynamic loudspeaker 2 sends dry combustion method voice reminder.In addition, anti-dry speech prompting device may also include dry combustion method indicator lamp, dry combustion method instruction Lamp is opened when receiving dry combustion method signal and reveals waming color, is reminded with more multimode.Dry combustion method indicator lamp may be configured as Closed during anti-dry detection means failure.

Wherein, anti-dry detection means further comprises：

Dry-burning preventing sensor 302, the burner 300 of gas-cooker is arranged on to detect cooking bottom temperature in real time, and send the bottom of a pan temperature Spend detection signal；

Controller 201, the cooking bottom temperature detection signal is received, and judge to correspond to according to the cooking bottom temperature detection signal The cooking bottom temperature whether reach the dry combustion method temperature of dry-fire condition, and dry combustion method signal is generated when reaching the dry-fire condition.

With reference to Fig. 8 e, detect the temperature in the bottom of a pan in real time by dry-burning preventing sensor 302 and send cooking bottom temperature detection signal. Dry-burning preventing sensor 302 includes the dry combustion method inspection for being arranged on the sensor probe of burner 300 and being integrated in pulse igniter 200 Slowdown monitoring circuit.

Referring to Fig. 7, anti-dry speech prompting device is related to dry-burning preventing sensor 302 and includes speech chip 1 and loudspeaker 2 Speech prompting device and controller 201 between communication and data processing.

Specifically, cooking bottom temperature change causes the temperature change of sensor probe, the change in resistance of sensor probe, dry combustion method Detection circuit gathers the resistance of sensor probe in real time, by sensor RT characteristics, eventually through specific dry shown in Fig. 9 g Burn detection circuit conversion and export corresponding voltage signal F (corresponding cooking bottom temperature detection signal) to the MCU in pulse igniter 200 Chip.MCU chip continuous collecting voltage signal F, until signal value reaches dry combustion method temperature (such as 290 degrees Celsius) according to RT characteristics Corresponding dry combustion method voltage signal values, it is considered as dry combustion method establishment.Now, dry combustion method signal corresponding to MCU chip generation, dry combustion method signal can Including signal G, with positive closing gas valve, further dry combustion method is prevented, further includes and is believed by voltage corresponding to Fig. 9 b circuit outputs Number B4 is to speech chip 1, and after speech chip 1 receives and identifies voltage signal B4, driving loudspeaker 2 plays corresponding dry combustion method voice Remind.

Likewise, anti-dry speech prompting device also can externally send dry combustion method signal by WIFI reception devices, with transmission To remote terminal, such as cell phone application.

6th, loss of ignition speech prompting device

For the loss of ignition speech prompting device of gas-cooker, including：

Detector for ignition, judges whether igniting starts in ignition process, and judges burner by temperature-sensitive thermocouple 301 300 whether firing up, judging igniting to start during 300 not firing up of burner, generating loss of ignition signal；

Speech prompting device 500, detector for ignition is electrically connected, loss of ignition is sent when receiving loss of ignition signal Voice reminder.

Wherein, speech prompting device 500 includes speech chip 1 and loudspeaker 2, and speech chip 1 and loudspeaker 2 are arranged on envelope Fill in housing 3, encapsulating housing 3 is independently installed in the housing 600 of gas-cooker.When receiving loss of ignition signal, voice core Piece 1 drives loudspeaker 2 to send loss of ignition voice reminder.Loss of ignition detection means may also include ignition light, and igniting refers to Show that lamp is opened when receiving loss of ignition signal and reveals waming color.Ignition light may also be configured in detector for ignition Closed during failure.

Wherein, detector for ignition may include：

Battery current detection circuit, the current value at the both ends of battery 100 is detected in real time；

Temperature-sensitive thermocouple 301, sense the temperature of burner 300 and send electromotive force signal；And

Controller 201, is configured to：

The current value of detection is received, whether is fallen into setting initial firing current section and judged according to the current value of detection Whether igniting starts；

Electromotive force signal is obtained in real time, and in electromotive force not from the low level shape less than lower predetermined threshold (such as 1mV) When state rises to the high level state more than upper predetermined threshold (such as 2mV), the not firing up of burner 300 is judged；

The loss of ignition signal is generated when judging igniting startup and 300 not firing up of burner.

Referring to Fig. 7, loss of ignition speech prompting device is related to battery 100, temperature-sensitive thermocouple 301 and includes speech chip 1 Communication and data processing between the speech prompting device and controller 201 of loudspeaker 2.

Wherein, when pressing and twisting the preparation igniting of coal gas rotary valve 400, it need to judge whether igniting really starts.Referring to figure 8f, it is the initial firing current for gathering the both ends of battery 100 by the way of.During pulse firing, initial firing current is larger, usually 80mA ~120mA sections, therefore it is preferably 80mA~120mA to set initial firing current section.The initial firing current of collection falls into this section, then It is considered as igniting to start.This judgement can be realized by independent comparators or the comparison circuit being integrated in controller etc., such as The current value detected received is compared with the upper threshold value and lower threshold value in setting initial firing current section respectively, to judge to be It is no to fall into the setting initial firing current section.The circuit structure and its logic element of this comparator or comparison circuit are ability It is not described in detail herein known to field technique personnel.

Selectively, microswitch is touched when can also be pressed by coal gas rotary valve 400 to obtain trigger signal, decision-point Fire starts, and now microswitch triggers igniting enabling signal when coal gas rotary valve 400 is pressed, i.e., by specific shown in Fig. 9 h The jogging switches measurement circuit of example obtains signal H.Now controller 201 judges that igniting starts according to igniting enabling signal；

Temperature-sensitive thermocouple 301 includes being arranged on the thermocouple probe at burner 300 and is integrated in pulse igniter 200 Thermocouple detects circuit.Equally, obtain electromotive force signal in real time, i.e., by the specific thermocouple shown in Fig. 9 f detect circuit come Sense the temperature of burner 300 and send electromotive force signal (voltage signal E corresponding to i.e.), and in electromotive force not from pre- less than lower When determining the low level state of threshold value and rising to the high level state more than upper predetermined threshold, the not firing up of burner 300 is judged； Loss of ignition signal is generated when judging igniting startup and 300 not firing up of burner.

Likewise, loss of ignition speech prompting device also can externally send loss of ignition signal by WIFI reception devices, To be sent to remote terminal, such as cell phone application so that the user away from gas-cooker can also obtain the real-time monitoring letter to gas-cooker Breath.Further, transmitting-receiving medium can be also used as by WIFI reception devices, pulse igniter is manipulated by remote terminal 200, and then remote control gas-cooker, especially carry out safety and close valve operation or send various alarm signals.

Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model Art scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.

It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance In the case of shield, it can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to each The possible combination of kind no longer separately illustrates.

In addition, it can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.

Claims (10)

1. a kind of anti-dry speech prompting device for gas-cooker, it is characterised in that described device includes：

Anti-dry detection means, cooking bottom temperature is detected in real time and when judging that the cooking bottom temperature reaches dry combustion method temperature, generation pair The dry combustion method signal answered；And

Speech prompting device (500), the anti-dry detection means is electrically connected, dry combustion method is sent when receiving the dry combustion method signal Voice reminder.

2. the anti-dry speech prompting device according to claim 1 for gas-cooker, it is characterised in that the voice carries Device (500) of waking up includes speech chip (1) and loudspeaker (2), when receiving the dry combustion method signal, the speech chip (1) The loudspeaker (2) is driven to send the dry combustion method voice reminder.

3. the anti-dry speech prompting device according to claim 2 for gas-cooker, it is characterised in that the voice carries Device (500) of waking up also includes encapsulating housing (3), and the speech chip (1) and loudspeaker (2) are arranged on the encapsulating housing (3) It is interior, in the independently installed housing (600) in the gas-cooker of the encapsulating housing (3).

4. the anti-dry speech prompting device according to claim 1 for gas-cooker, it is characterised in that the anti-dry Speech prompting device also includes dry combustion method indicator lamp, and the dry combustion method indicator lamp is opened when receiving the dry combustion method signal and reveals report Alert color.

5. the anti-dry speech prompting device according to claim 4 for gas-cooker, it is characterised in that the dry combustion method refers to Show that lamp is arranged to close in the anti-dry detection means failure.

6. the anti-dry speech prompting device for gas-cooker according to any one in Claims 1 to 5, its feature It is, the anti-dry detection means includes：

Dry-burning preventing sensor (302), the burner (300) of the gas-cooker is arranged on to detect the cooking bottom temperature in real time, concurrently Send cooking bottom temperature detection signal；And

Controller (201), the cooking bottom temperature detection signal is received, and according to corresponding to judging the cooking bottom temperature detection signal Whether the cooking bottom temperature reaches the dry combustion method temperature of dry-fire condition, and the dry combustion method letter is generated when reaching the dry-fire condition Number.

7. the anti-dry speech prompting device according to claim 6 for gas-cooker, it is characterised in that the gas-cooker Including pulse igniter (200), the controller (201) is provided with the pulse igniter (200).

8. the anti-dry speech prompting device according to claim 6 for gas-cooker, it is characterised in that the anti-dry Speech prompting device also includes WIFI reception devices, and the controller (201) is also externally sent by the WIFI reception devices The dry combustion method signal.

9. a kind of gas-cooker, including at least one burner (300), the fuel gas supply for controlling the burner (300) correspondingly At least one branch valve and control all burner (300) fuel gas supply main valve, it is characterised in that the combustion gas Stove also includes the anti-dry speech prompting device for gas-cooker according to any one in claim 1~8.

10. gas-cooker according to claim 9, it is characterised in that the gas-cooker also includes switch module (800), institute State switch module (800) and close the main valve and the branch valve when receiving the dry combustion method signal.