CN106969388B - Loss of ignition speech prompting device for gas-cooker - Google Patents
Loss of ignition speech prompting device for gas-cooker Download PDFInfo
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- CN106969388B CN106969388B CN201710279315.8A CN201710279315A CN106969388B CN 106969388 B CN106969388 B CN 106969388B CN 201710279315 A CN201710279315 A CN 201710279315A CN 106969388 B CN106969388 B CN 106969388B
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- 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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- Combustion & Propulsion (AREA)
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Abstract
The invention discloses a kind of loss of ignition speech prompting devices for gas-cooker, it include: detector for ignition, judge whether igniting starts in ignition process, and by temperature-sensitive thermocouple (301) judge burner (300) whether firing up, when determining igniting starting and the burner not firing up, loss of ignition signal is generated；Speech prompting device (500), is electrically connected the detector for ignition, and loss of ignition voice reminder is issued when receiving the loss of ignition signal.In apparatus of the present invention, when detector for ignition detects igniting starting and finally lights a fire unsuccessful, loss of ignition voice reminder will be issued by speech prompting device.This increased voice prompting function, directly, effectively, it is particularly advantageous to amnesia or negligent user group, especially when being unaware of and recklessly leaving after user strikes sparks failure, can avoid generating a series of subsequent possible safety accidents such as gas leakage.
Description
Technical field
The invention belongs to field of kitchen electric appliance, and in particular, to a kind of loss of ignition voice reminder dress for gas-cooker
It sets.
Background technique
The development of gas cooker increasingly safety-sensitive the problem of, but many safety feedback function is not very straight at present
It sees, especially when gas-cooker user is mostly the middle-aged and the old in family.For example, the standby configuration buzzer of common gas-cooker polygamy with
The buzzing alarm that drop drop is generated in gas leakage, reminds user the case where gas alarm occur.Although this has certain gas leakage
Prompting effect, but feedback effects are not intuitive, because gas leakage is not that event occurs for normal probability, once gas leakage occurs, use
Family does not know what meaning drop drop sound represents, and has a degree of maloperation event and occurs, cannot provide the user with accurately
Fault message makes next step operational motion so as to guide user, or even is easy to be ignored buzzing alarm by user.
And the adjoint age increases, and the visual impairment of the middle-aged and the old, amnesia is multiple, reagency decline, individually visual
Change or the feedback effects of simple buzzer are no longer satisfied the demand of middle-aged and elderly users, and multi-angle various aspects is needed to carry out more
Multi-functional increase is reminded, quicklook is reminded, to obtain immediate response.For example, being struck sparks by rotation process coal gas rotary valve
Or Guan Huoshi, user is easy to ignore success of whether lighting a fire, or whether normally closes igneous function, or even has ignored improper pass fire
Deng.In addition, existing kitchen range electricity is generally shown without electricity, or increase a mark for display electricity, electricity on the panel of kitchen range
When measuring low can bright light, but feedback effects be also it is not intuitive, be easy to be ignored by user, lead to 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 at this time
Kitchen range stopped work, and the time of culinary art has been affected when discovery.
Summary of the invention
In view of the above drawbacks of the prior art or insufficient, the present invention provides a kind of loss of ignition voices for gas-cooker
Alarm set can issue voice reminder when lighting a fire unsuccessful, be suitable for middle-aged and elderly users or negligent user, prevent bad
The generation of consequence.
To achieve the above object, it the present invention provides a kind of loss of ignition speech prompting device for gas-cooker, is used for
The loss of ignition speech prompting device of gas-cooker, which is characterized in that described device includes:
Detector for ignition, judges whether igniting starts in ignition process, and judges that burner is by temperature-sensitive thermocouple
No firing up generates loss of ignition signal when determining igniting starting and the burner not firing up；
Speech prompting device is electrically connected the detector for ignition, issues a little when receiving the loss of ignition signal
Fire failure voice reminder.
Preferably, the speech prompting device includes speech chip and loudspeaker, is receiving the loss of ignition signal
When, the speech chip drives the loudspeaker to issue the loss of ignition voice reminder.
Preferably, the speech prompting device further includes encapsulating housing, and the speech chip and loudspeaker are arranged described
In encapsulating housing, the encapsulating housing is independently installed in the shell of the gas-cooker.
Preferably, the loss of ignition detection device further includes ignition light, and the ignition light is receiving
It is opened when stating loss of ignition signal and reveals waming color.
Preferably, the ignition light is set as the closing in the detector for ignition failure.
Preferably, the detector for ignition includes:
Battery current detection circuit, the current value at battery both ends described in real-time detection；
The temperature-sensitive thermocouple senses the temperature of the burner and issues electromotive force signal；And
The controller, is configured that
Whether the current value for receiving detection falls into setting initial firing current section according to the current value of detection and is judged
Whether igniting starts；
The electromotive force signal is obtained in real time, and in the electromotive force not from the low level state for being lower than lower predetermined threshold
When rising to the high level state greater than upper predetermined threshold, the burner not firing up is determined；
The loss of ignition signal is generated when determining igniting starting and the burner not firing up.
Preferably, the lower predetermined threshold is 1mV.
Preferably, 80mA~120mA is in the initial firing current section that sets.
Preferably, the gas-cooker includes pulse igniter, and the pulse igniter connects the battery, the battery electricity
Current detection circuit and the controller are integrated in the pulse igniter.
Preferably, the detector for ignition includes:
Microswitch, the triggering igniting enabling signal when coal gas rotary valve is pressed；
The temperature-sensitive thermocouple senses the temperature of the burner and issues electromotive force signal；And
The controller, is configured that
Igniting starting is determined according to the igniting enabling signal；
The electromotive force signal is obtained in real time, and in the electromotive force not from the low level state for being lower than lower predetermined threshold
When rising to the high level state greater than upper predetermined threshold, the burner not firing up is determined；
The loss of ignition signal is generated when determining igniting starting and the burner not firing up.
In the loss of ignition speech prompting device for gas-cooker of the invention, detector for ignition detects that igniting is opened
When moving and finally lighting a fire unsuccessful, loss of ignition voice reminder will be issued by speech prompting device.This increased voice mentions
Function of waking up directly effectively is particularly advantageous to amnesia or negligent user group, no matter especially in sparking failure and ignore
When ground is left, it can avoid generating a series of subsequent possible safety accidents such as gas leakage.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the main view according to the gas-cooker of the preferred embodiment of the present invention；
Fig. 2 is the assembly explosive view of gas-cooker shown in FIG. 1；
Fig. 3 is the top view of the bottom part of gas-cooker shown in Fig. 2；
Fig. 4 is the perspective view of speech prompting device；
Fig. 5 is the explosive view of the speech prompting device of Fig. 4；
Fig. 6 is the perspective view of indicator light；
Fig. 7 be according to the functional block diagram between each funtion part in the gas-cooker of the preferred embodiment of the present invention,
In illustrate signal transitive relation between each funtion part；
Fig. 8 a~Fig. 8 f shows gas leakage detection respectively with specific example and phonetic alarm device, low battery voice mention
Awake device, accident extinguishing detection and warning device normally close fiery speech prompting device, anti-dry speech prompting device and light a fire and lose
Lose the work flow diagram of speech prompting device；And
Fig. 9 a~Fig. 9 h successively illustrates MCU chip, coal gas detection circuit module, voice output circuit module, low battery
The circuit of reminding module, potentiometer detection circuit, thermocouple detection circuit, dry combustion method detection circuit and jogging switches measurement circuit
Figure.
Description of symbols
1 speech chip, 2 loudspeaker
3 encapsulating housing, 4 gas detectors
5 indicator lights
100 battery, 200 pulse igniter
300 burner, 400 coal gas rotary valve
500 speech prompting device, 600 shell
700 glass panel, 800 switch block
201 controller, 301 temperature-sensitive thermocouple
302 dry-burning preventing sensor, 401 valve rod rotation angle detector
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually needle
For direction shown in the drawings either for it is vertical, on vertical or gravity direction for each component mutual alignment relation
Word is described." inside and outside " is commonly referred to as the inside and outside mutual alignment relation word for gas-cooker cavity.
In conjunction with shown in FIG. 1 to FIG. 3, the present invention provides a kind of gas-cooker, including top section and bottom part, top
Dividing includes glass panel 700, and bottom part includes each function element of shell 600 and its interior installation.Referring to Fig. 3 as it can be seen that combustion gas
Battery 100, pulse igniter 200 are equipped in stove, to control the igniting of the pulse ignition device of burner 300, coal gas rotary valve 400
For user's rotation process to manually control coal gas conducting, valve opening, sparking etc..
Particularly, gas-cooker of the invention is integrated with including gas leakage detection and phonetic alarm device, low battery voice
Alarm set, accident extinguishing detection and warning device, the fiery speech prompting device in normal pass, anti-dry speech prompting device and igniting
At least one of failure speech prompting device.By speech prompting device 500, it can be achieved that additional phonetic function is reminded.Language
The intuitive that sound is reminded is strong, and acceptance is high, and user can will immediately appreciate where generated failure, problem.To such as gas leakage,
The additional voice reminder of the carry out such as low battery, anti-dry, can allow the obtaining information of user's quicklook, and handle at once instantly.Separately
Outside, for accident extinguishing, normal pass fire, loss of ignition etc., existing gas-cooker is all used without related prompt or warning, but partially
Family (especially middle-aged and elderly users) has demand to this, thus the present invention can provide more multi-functional voice reminders, greatly facilitate
User uses, and may also be combined with the prompting that will be described below indicator light 5, remote prompting etc., even if user is allowed to have left gas-cooker,
Also instant messages can be obtained, emergency processing is carried out.
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 issue function alerting signal (such as gas leakage letter
Number) afterwards driving loudspeaker 2 issue (such as the combustion gas corresponding to gas leakage signal of corresponding with function alerting signal prompting voice
Voice, such as " drop, drop, drop, gas leakage please close valve in time " are reminded in leakage).
Gas leakage detection and phonetic alarm device, low battery speech prompting device, accident extinguishing inspection are only schematically illustrated above
It surveys and warning device, normal fiery speech prompting device, anti-dry speech prompting device and the loss of ignition speech prompting device of closing is total to
Six kinds of functional devices, however, the present invention is not limited thereto may include more other function devices.Each functional device can share control
Device 201, specific in gas-cooker structure, the MCU chip (see Fig. 9 a) in pulse igniter 200 may act as the control of each functional device
Device 201 processed.
Fig. 4 is the perspective view of speech prompting device 500, is individual packages.Referring to Fig. 5, between the upper and lower covers of encapsulating housing 3
It is packaged with speech chip 1 and loudspeaker 2, the upper cover of encapsulating housing 3 is equipped with power interface and sound outlet, thermovent etc..Combustion
600 bottom of shell of gas kitchen can open up perforation mounting hole, and the speech prompting device 500 of individual packages is installed on perforation mounting hole
In, it protrudes into 600 inner cavity of shell of gas-cooker.Specifically, the settable Elastic buckle of the periphery wall of encapsulating housing 3, to buckle peace
On shell 600.Since speech prompting device 500 is independently installed and protrudes into gas-cooker inner cavity, thus particularly, speech chip
The probe of gas detectors 4 is also integrated on 1, in order to detect the gas concentration in gas-cooker inner cavity, i.e. real-time detection combustion gas
Leakage, will also be specifically described below.
Fig. 6 is the perspective view of indicator light.Indicator light 5 can there are many, such as it is a pair of with above-mentioned six kinds of functional devices one
The six kinds of indicator lights answered, such as gas leakage indicator light, low battery indicator light.Indicator light 5 is usually bi-colour light, for example including
Color (green) and alarm color (red) are worked normally, is mounted on lamp holder, the bottom surface of glass panel 700 is mounted on through bracket
On.Connecting line and plug are stretched out in the bottom of lamp holder, to connect power supply.In this way, when any one functional device starts, through voice
While prompting, prompting can be synchronized by corresponding indicator light 5, be more convenient user.In addition, when in each function alarm set
Any one generate failure when, corresponding indicator light 5 should close, so that user discovers.
Gas-cooker of the invention may also include WIFI reception device (not shown), and controller 201 can be connect by WIFI
Receiving apparatus issues wireless alarm signal corresponding with above-mentioned function alerting signal.In this way, even if user far from gas-cooker,
Related prompting message, in time discovery reconciliation can be obtained by the application program (i.e. cell phone application etc.) of other terminals (such as mobile phone)
Certainly problem.In addition, also mountable on gas-cooker be electrically connected and external coal gas report with controller 201 and speech prompting device 500
Alert device (not shown), in the external space (such as kitchen) of gas-cooker there are when gas leakage, gas leak detector can also pass through
The sendings such as speech prompting device 500, WIFI reception device are reminded.
Below with reference to Fig. 7, Fig. 8 a~Fig. 8 f and Fig. 9 a~Fig. 9 h, above-mentioned gas leakage inspection is illustrated with specific example
Survey and phonetic alarm device, low battery speech prompting device, accident extinguishing detection and warning device, the normal fire voice reminder that closes fill
It sets, the structure composition and its course of work of anti-dry speech prompting device and loss of ignition speech prompting device.
One, gas leakage detection and phonetic alarm device
Gas leakage detection and phonetic alarm device include:
Gas leakage detection device, real-time monitoring leakage gas concentration simultaneously judge to reveal whether gas concentration value is greater than setting
Concentration value generates corresponding gas leakage signal when revealing gas concentration value greater than setting gas concentration value；
Speech prompting device 500 is electrically connected gas leakage detection device, issues combustion gas when receiving gas leakage signal
Reveal voice reminder.
Wherein, gas leakage detection device can include:
Gas detectors 4, the leakage gas concentration in real-time monitoring gas-cooker and the leakage gas concentration value according to monitoring
It generates corresponding detection signal and is sent to gas leakage comparator；
Gas leakage comparator will test signal compared with baseline threshold, and comparison result is sent to controller 201；
And
Controller 201 judges to reveal whether gas concentration value is greater than setting gas concentration value according to comparison result, and is letting out
When revealing gas concentration value greater 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 block 800.
Gas detectors 4 include gas detectors 4 and probe, it is probe internally provided in the speech prompting device 500 of encapsulation with
Monitor the combustible gas concentration value around detector in real time, 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 is generated according to the leakage gas concentration value of monitoring and is corresponded to
Detection signal, such as the output voltage signal A of Fig. 9 b.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 setting baseline threshold (voltage value) corresponding to gas concentration value
Compared with to be judged to reveal whether gas concentration value is greater than setting gas concentration value according to comparison result, and in leakage gas concentration
When value is greater than setting concentration value, gas leakage signal is generated, i.e., wherein by the corresponding output of the voice output circuit module of Fig. 9 c
A kind of voltage signal B to speech chip 1, after speech chip 1 receives and identifies voltage signal B, drive loudspeaker (i.e. loudspeaking
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 previously mentioned, gas leakage speech prompting device may also include gas leakage indicator light, gas leakage indicator light exists
It is opened when receiving gas leakage signal and reveals waming color.Moreover, gas leakage indicator light may be configured as examining in gas leakage
It is closed when surveying plant failure.
While carrying out the voice reminder and/or light prompting of gas leakage, corresponding urgent automatic place should be also carried out
Reason.As shown in fig. 7, gas-cooker includes the gas valve and switch block 800 for controlling fuel gas supply, the gas valve may include one by one
It accordingly controls at least one branch valve of the fuel gas supply of each burner 300 and controls the fuel gas supply of all burners 300
Main valve, switch block 800 is electrically connected gas leakage detection and phonetic alarm device and for receiving gas leakage signal
When cut off all gas valves, to ensure safety.
Two, low battery speech prompting device
Low battery speech prompting device for gas-cooker, comprising:
Battery electric quantity checking device, real-time detection battery capacity simultaneously generate low battery signal in low battery；And
Speech prompting device 500 is electrically connected battery electric quantity checking device, issues low battery when receiving low battery signal
Voice reminder.
Wherein, speech prompting device 500 includes speech chip 1 and loudspeaker 2, and speech chip 1 and the setting of loudspeaker 2 are being sealed
It fills in shell 3, encapsulating housing 3 is independently installed in the shell 600 of gas-cooker.Battery electric quantity checking device may also include battery electricity
Indicator light is measured, battery capacity indicator light reveals waming color when receiving low battery signal.Battery capacity indicator light is also configured to
Failure color is shown in battery electric quantity checking device failure.
Wherein, battery electric quantity checking device can include:
Battery voltage detection circuit, the voltage value at 100 both ends of real-time detection battery simultaneously send voltage value signal to battery electricity
Measure comparator；
Battery capacity comparator, receive the voltage value signal of detection and with setting voltage threshold compared with, by comparison result
Send controller 201；
Controller 201 judges whether battery 100 is in low battery state according to comparison result, and is determining 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, the voice including speech chip 1 and loudspeaker 2 mentions
The communication and data processing waken up between device and controller 201.
Specifically, in conjunction with Fig. 8 b, pulse igniter 200 is electrically connected with battery 100, is integrated with MCU in pulse igniter 200
Chip and low battery reminding module including battery voltage detection circuit, can acquire in real time battery by battery voltage detection circuit
The voltage value at 100 both ends simultaneously passes through 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 the load voltage value of battery 100, when lower than setting voltage threshold, is considered as low electricity
Amount.
At this point, controller 201 generates low battery signal, exported by the amplifier of low battery reminding module shown in Fig. 9 d
Corresponding voltage signal C lights corresponding low battery indicator light.Meanwhile one such electricity is exported by the way that Fig. 9 c circuit is corresponding
Press signal B1 (corresponding to low battery signal) to speech chip 1, after speech chip 1 receives and identifies voltage signal B1, driving is expanded
Sound device (i.e. loudspeaker) 2 plays corresponding low battery voice reminder.
Similarly, low battery speech prompting device can also externally issue low battery signal by WIFI reception device.
Three, accident extinguishing detection and warning device
Accident extinguishing detection and warning device, comprising:
Accident extinguishing detection device passes 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 determining that coal gas rotary valve 400 is in valve opening state and burner 300 stops working, corresponding accident extinguishing signal is generated；And
Accident extinguishing warning device is electrically connected accident extinguishing detection device, and meaning is issued when receiving accident extinguishing signal
Outer flame-out alarm.
Wherein, accident extinguishing detection device includes:
Valve rod rotation angle detector 401 detects the rotary angle position of the valve rod of coal gas rotary valve 400 and issues rotation
Angle position signal；
Temperature-sensitive thermocouple 301 senses the temperature of burner 300 and issues electromotive force signal；
Controller 201 obtains rotary angle position signal and electromotive force signal in real time, and is 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 for being greater than upper predetermined threshold
When determining the low level state of threshold value, corresponding accident extinguishing signal is generated.
Referring to Fig. 7, accident extinguishing detection and warning device are related to valve rod rotation angle detector 401, temperature-sensitive thermocouple
301, the communication and data processing between speech prompting device and controller 201 including speech chip 1 and loudspeaker 2, very
To being related to switch block 800.
In general, 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 the potentiometer probe being arranged at valve rod and is integrated in pulse igniter 200
In potentiometer detection circuit.
In conjunction with Fig. 8 c it is found that rotary angle position can be obtained by specific potentiometer detection circuit shown in Fig. 9 e, send out
Rotary angle position signal (being converted to corresponding voltage signal D1) output is to controller out.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 in specific thermocouple detection circuit can sense the temperature of burner 300 and issue electromotive force signal (i.e. corresponding voltage letter
Number E).
Controller 201 obtains above-mentioned rotary angle position signal and electromotive force signal in real time, in rotary angle position signal
When for non-zero-degree rotary angle position signal, show that coal gas rotary valve 400 is valve opening state, it is upper pre- from being greater than in electromotive force signal
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 is flame-out, this
When controller control generate corresponding accident extinguishing signal, i.e., give voice core by the corresponding voltage signal B2 of Fig. 9 b circuit output
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 device, and unexpected put out externally is issued by it
Fiery signal can be transmitted in such as cell phone application, remotely to monitor.When receiving accident extinguishing signal, not only speech chip 1
Loudspeaker 2 is driven to issue accident extinguishing audio alert, accident extinguishing indicator light is also opened and reveals waming color.Accident extinguishing instruction
Lamp is also configured as the closing in unexpected extinguishing detecting device failure.
After accident extinguishing occurs, valve body is needed.As shown in fig. 7, switch block 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 generating and ignite explosion
Deng.
Four, normal to close fiery speech prompting device
It is normal to close fiery speech prompting device, comprising: normally 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, the corresponding fiery signal in normal pass is generated；And
Speech prompting device 500 is electrically connected normal pass fire detection device, issues normally when receiving and normally closing fiery signal
Close fiery voice reminder.
Wherein, the normal fire speech prompting device that closes may also include the fiery indicator light in normal pass, and the normal fiery indicator light in pass is receiving
It is opened when signal fiery to normal pass and reveals normal work color.The normal fire indicator light that closes can be further arranged to close fire inspection normal
Warning color is switched to when surveying plant failure.
Wherein, fire detection device is normally closed can include:
Valve rod rotation angle detector 401 (such as potentiometer) detects the rotary angle position of the valve rod of 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 becomes according to the variation of the first rotary angle position signal to the second rotary angle position signal
Gesture judges whether coal gas rotary valve 400 is in valve trend state of closing, and is determining in pass valve trend state and receiving
When closing trigger signal in place, the fiery signal in normal pass is generated.
Referring to Fig. 7, the normal fire speech prompting device that closes only relates to valve rod rotation angle detector 401 and including speech chip
Communication and data processing between 1 and the speech prompting device and controller 201 of loudspeaker 2.
Preferably, 0.1s~0.5s is divided between setting time.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.It is found that it for example can by specific potentiometer detection circuit shown in Fig. 9 e in conjunction with Fig. 8 d
The first rotary angle position of previous moment and the second rotary angle position of later moment in time are obtained, corresponding rotation angle is issued
Position signal (i.e. corresponding voltage signal D2 and D3) gives controller.By first rotary angle position for representing previous moment
Voltage signal D2 would know that coal gas rotary valve 400 whether in valve opening state, that is, judges whether the first rotary angle position is non-
Zero degree rotary angle position.Trend and trend whether 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 close valve trend state.
This judgement can be realized by individual comparator, such as can be by judging former and later two voltage signals D2's and D3
Size, therefore, it is determined that no in pass valve trend state.Certainly, the logic circuit of the judgement of above-mentioned pass valve trend can also be integrated in
In controller.This is known to the skilled person technology, not described in detail herein.When in valve trend is closed, controller is lasting
Trigger signal in place is closed in acquisition, closes trigger signal in place collecting (i.e. Fig. 9 e circuit issues corresponding voltage signal D5)
When, show that coal gas rotary valve 400 is closed in place, controller generates the corresponding fiery signal in normal pass at this time, that is, passes through Fig. 9 b circuit
Corresponding voltage signal B3 is exported to speech chip 1, after speech chip 1 receives and identifies voltage signal B3, driving loudspeaker 2 is broadcast
Put the corresponding fiery voice reminder in normal pass.
Particularly, to prevent false triggering erroneous judgement etc., normal pass fire detection device of the invention is also configured to set
Triggering begins to shut off trigger signal when determining rotary angle position (i.e. Fig. 9 e circuit issues corresponding voltage signal D4)；Setting rotation
Angle position is, for example, 20 ° of rotary angle positions, and coal gas rotary valve 400 is begun to shut off at this time, has substantially shut off the combustion of burner 300
Gas supply.Therefore, controller 201 is additionally configured to determining to begin to shut off touching in pass valve trend state and continuously receiving
When signaling and closing trigger signal in place, the fiery signal in normal pass is generated.
Likewise, the normal fire speech prompting device that closes can also externally issue the fiery signal in normal pass by WIFI reception device.
Five, anti-dry speech prompting device
Anti-dry speech prompting device includes:
Anti-dry detection device, real-time detection cooking bottom temperature and determine cooking bottom temperature reach dry combustion method temperature when, generate pair
The dry combustion method signal answered；And
Speech prompting device 500 is electrically connected anti-dry detection device, and dry combustion method voice is issued when receiving dry combustion method signal and is mentioned
It wakes up.
Wherein, speech prompting device 500 includes speech chip 1 and loudspeaker 2, and speech chip 1 and the setting of loudspeaker 2 are being sealed
It fills in shell 3, encapsulating housing 3 is independently installed in the shell 600 of gas-cooker.When receiving dry combustion method signal, speech chip 1 is driven
Dynamic loudspeaker 2 issues dry combustion method voice reminder.In addition, anti-dry speech prompting device may also include dry combustion method indicator light, dry combustion method instruction
Waming color is opened when receiving dry combustion method signal and revealed to lamp, is reminded with more multimode.Dry combustion method indicator light may be configured as
It is closed when anti-dry detection device failure.
Wherein, anti-dry detection device further comprises:
Dry-burning preventing sensor 302 is arranged in the burner 300 of gas-cooker with real-time detection cooking bottom temperature, and sends the bottom of a pan temperature
Degree detection signal；
Controller 201 receives the cooking bottom temperature detection signal, and detects signal judgement according to the cooking bottom temperature and correspond to
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.
In conjunction with Fig. 8 e, passes through the temperature in the 302 real-time detection the bottom of a pan of dry-burning preventing sensor and send cooking bottom temperature and detect signal.
Dry-burning preventing sensor 302 includes the dry combustion method inspection that the sensor probe of burner 300 is arranged in and is 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 variation leads to the temperature change of sensor probe, the change in resistance of sensor probe, dry combustion method
Detection circuit acquires the resistance value of sensor probe in real time, by sensor RT characteristic, specifically does eventually by shown in Fig. 9 g
It burns detection circuit conversion and exports corresponding voltage signal F (corresponding cooking bottom temperature detects 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 characteristic
Corresponding dry combustion method voltage signal values are considered as dry combustion method establishment.At this point, MCU chip generates corresponding dry combustion method signal, dry combustion method signal can
Including signal G, to forcibly close gas valve, further dry combustion method is prevented, is further included through the corresponding voltage letter of Fig. 9 b circuit output
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
It reminds.
Likewise, anti-dry speech prompting device can also externally issue dry combustion method signal by WIFI reception device, with transmission
To remote terminal, such as cell phone application.
Six, loss of ignition speech prompting device
Loss of ignition speech prompting device for gas-cooker, comprising:
Detector for ignition, judges whether igniting starts in ignition process, and judges burner by temperature-sensitive thermocouple 301
300 whether firing up, determining igniting starting when 300 not firing up of burner, generating loss of ignition signal；
Speech prompting device 500 is electrically connected detector for ignition, issues loss of ignition 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 the setting of loudspeaker 2 are being sealed
It fills in shell 3, encapsulating housing 3 is independently installed in the shell 600 of gas-cooker.When receiving loss of ignition signal, voice core
Piece 1 drives loudspeaker 2 to issue loss of ignition voice reminder.Loss of ignition detection device 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
It is closed when failure.
Wherein, detector for ignition can include:
Battery current detection circuit, the current value at 100 both ends of real-time detection battery；
Temperature-sensitive thermocouple 301 senses the temperature of burner 300 and issues electromotive force signal；And
Controller 201, is configured that
Whether the current value for receiving detection falls into setting initial firing current section according to the current value of detection and is judged
Whether igniting starts；
Electromotive force signal is obtained in real time, and in electromotive force not from the low level shape for being lower than lower predetermined threshold (such as 1mV)
When state rises to the high level state greater than upper predetermined threshold (such as 2mV), the not firing up of burner 300 is determined；
The loss of ignition signal is generated when determining igniting starting 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 is the initial firing current for acquiring 100 both ends of battery by the way of.When pulse firing, initial firing current is larger, usually 80mA
The section~120mA, therefore setting initial firing current section is preferably 80mA~120mA.The initial firing current of acquisition falls into this section, then
It is considered as igniting starting.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 in setting initial firing current section and lower threshold value respectively, to determine 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 press by coal gas rotary valve 400 to obtain trigger signal, decision-point
Fire starting, microswitch triggers igniting enabling signal when coal gas rotary valve 400 is pressed at this time, i.e., by specific shown in Fig. 9 h
Exemplary jogging switches measurement circuit obtains signal H.Controller 201 determines igniting starting according to igniting enabling signal at this time；
Temperature-sensitive thermocouple 301 includes that the thermocouple probe at burner 300 is arranged in and is integrated in pulse igniter 200
Thermocouple detection circuit.Equally, obtain electromotive force signal in real time, i.e., by specific thermocouple detection circuit shown in Fig. 9 f come
It senses the temperature of burner 300 and issues electromotive force signal (i.e. corresponding voltage signal E), and in electromotive force not from lower than lower pre-
When determining the low level state of threshold value and rising to the high level state greater than upper predetermined threshold, the not firing up of burner 300 is determined；
Loss of ignition signal is generated when determining igniting starting and 300 not firing up of burner.
Likewise, loss of ignition speech prompting device can also externally issue loss of ignition signal by WIFI reception device,
To be sent to remote terminal, such as cell phone application, the real time monitoring of gas-cooker is believed so that the user far from gas-cooker also can get
Breath.Further, also pulse igniter can be manipulated by remote terminal by WIFI reception device as transmitting-receiving medium
200, and then remote control gas-cooker, it especially carries out safety and closes valve operation or issue various alarm signals.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, and these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (8)
1. a kind of loss of ignition speech prompting device for gas-cooker, including battery (100) and it is connected with the battery (100)
Pulse igniter (200), which is characterized in that described device includes:
Detector for ignition, comprising:
Battery current detection circuit, the current value at battery (100) both ends described in real-time detection；
Temperature-sensitive thermocouple (301) senses the temperature of burner (300) and issues electromotive force signal；With
Controller (201), is configured that
Whether the current value for receiving detection falls into setting initial firing current section according to the current value of detection and judges to light a fire
Whether start；
The electromotive force signal is obtained in real time, and is not risen to from the low level state lower than lower predetermined threshold in the electromotive force
To more than upper predetermined threshold high level state when, determine the burner (300) not firing up；
Loss of ignition signal is generated when determining igniting starting and the burner (300) not firing up；
Speech prompting device (500), is electrically connected the detector for ignition, issues a little when receiving the loss of ignition signal
Fire failure voice reminder.
2. the loss of ignition speech prompting device according to claim 1 for gas-cooker, which is characterized in that the voice
Alarm set (500) includes speech chip (1) and loudspeaker (2), when receiving the loss of ignition signal, the voice core
Piece (1) drives the loudspeaker (2) to issue the loss of ignition voice reminder.
3. the loss of ignition speech prompting device according to claim 2 for gas-cooker, which is characterized in that the voice
Alarm set (500) further includes encapsulating housing (3), and the speech chip (1) and loudspeaker (2) are arranged in the encapsulating housing
(3) in, in the independently installed shell (600) in the gas-cooker of the encapsulating housing (3).
4. the loss of ignition speech prompting device according to claim 1 for gas-cooker, which is characterized in that the igniting
Failure detection device further includes ignition light, and the ignition light is opened and bright when receiving the loss of ignition signal
Waming color out.
5. the loss of ignition speech prompting device according to claim 4 for gas-cooker, which is characterized in that the igniting
Indicator light is set as the closing in the detector for ignition failure.
6. the loss of ignition speech prompting device according to claim 1 for gas-cooker, which is characterized in that described lower pre-
Determining threshold value is 1mV.
7. the loss of ignition speech prompting device according to claim 1 for gas-cooker, which is characterized in that the setting
Initial firing current section is 80mA~120mA.
8. the loss of ignition speech prompting device according to claim 1 for gas-cooker, which is characterized in that the battery
Current detection circuit and the controller (201) are integrated in the pulse igniter (200).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710279315.8A CN106969388B (en) | 2017-04-25 | 2017-04-25 | Loss of ignition speech prompting device for gas-cooker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710279315.8A CN106969388B (en) | 2017-04-25 | 2017-04-25 | Loss of ignition speech prompting device for gas-cooker |
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| CN106969388A CN106969388A (en) | 2017-07-21 |
| CN106969388B true CN106969388B (en) | 2019-02-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110440305A (en) * | 2018-05-04 | 2019-11-12 | 青岛海尔智慧厨房电器有限公司 | A kind of control method and gas-cooker of gas combustion range flameout alarm |
| CN111023166A (en) * | 2018-10-10 | 2020-04-17 | 关隆股份有限公司 | Gas stove system and control method thereof |
| CN110594782A (en) * | 2019-08-19 | 2019-12-20 | 珠海格力电器股份有限公司 | Pulse ignition device, gas appliance and ignition control method and system thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181635Y (en) * | 1993-12-24 | 1994-11-02 | 江西省赣州市煤气公司 | Voice alarm device for gas cooker |
| CN1900599A (en) * | 2006-07-21 | 2007-01-24 | 宁波方太厨具有限公司 | Gas range with automatic reigniting function after accident fire cut-off |
| CN101440965A (en) * | 2008-12-10 | 2009-05-27 | 宁波方太厨具有限公司 | Non-waiting ignition device of gas combustion range |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201081275Y (en) * | 2007-07-17 | 2008-07-02 | 伊莱克斯(杭州)家用电器有限公司 | Gas stove ignition system and the gas stove |
-
2017
- 2017-04-25 CN CN201710279315.8A patent/CN106969388B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181635Y (en) * | 1993-12-24 | 1994-11-02 | 江西省赣州市煤气公司 | Voice alarm device for gas cooker |
| CN1900599A (en) * | 2006-07-21 | 2007-01-24 | 宁波方太厨具有限公司 | Gas range with automatic reigniting function after accident fire cut-off |
| CN101440965A (en) * | 2008-12-10 | 2009-05-27 | 宁波方太厨具有限公司 | Non-waiting ignition device of gas combustion range |
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| CN106969388A (en) | 2017-07-21 |
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