CN104913346A - Gas cooker and control method thereof - Google Patents
Gas cooker and control method thereof Download PDFInfo
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- CN104913346A CN104913346A CN201510377984.XA CN201510377984A CN104913346A CN 104913346 A CN104913346 A CN 104913346A CN 201510377984 A CN201510377984 A CN 201510377984A CN 104913346 A CN104913346 A CN 104913346A
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- Prior art keywords
- kitchen ranges
- flame
- color
- gas kitchen
- gas
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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
Abstract
The invention provides a gas cooker and a control method thereof. The gas cooker comprises a burner, a fire cover, a color sensor and a reflection piece, wherein a fire hole communicated with a gas injection channel on the burner is formed in the fire cover, so that gas is sprayed from the fire hole to form a flame; the color sensor is positioned at the bottom of the burner; an avoidance channel is arranged between the color sensor and the fire hole; a reflection surface is arranged on the reflection piece and is used for reflecting the color of the flame to the color sensor by the avoidance channel so as to detect the color of the flame; the melting point of the reflection piece is higher than the temperature of the flame generated by burning of the gas. The gas cooker provided by the invention is used for detecting the color of the flame by the matching of the color sensor and the reflection piece to detect whether the flame is put out abnormally in real time, and further a user can be reminded in time when the gas leaks, so that the occurrence of potential safety hazards is avoided; the detection speed is high, the detection is precise, and the problem that the color sensor can not resist high temperature, so that the color of the flame and the leakage of the gas can not be detected by the color sensor is overcome.
Description
Technical field
The present invention relates to field of kitchen electric appliance, more specifically, relate to a kind of gas kitchen ranges and control method thereof.
Background technology
Existing gas kitchen ranges major part there is no detection and causes fray-out of flame because food overflows, causes the abnormalities such as accident extinguishing with minimum firepower work and the function of timely reminding user; Fraction gas kitchen ranges carrys out perception jet-burner variations in temperature by detecting burner temperature, judge whether flame extinguishes with this, but, this method whether extinguished based on temperature detection flame, detection speed is slow, response time is long, cannot respond fray-out of flame in time and reminding user, therefore there is no counte-rplan for abnormalities such as the gas leakages in certain hour section; Fraction gas kitchen ranges is also had to be detect to leak combustion gas after fray-out of flame, but, this based on to leakage coal gas detection judge the method whether flame extinguishes, once sensor mounting location is improper, sensor can be caused accurately cannot to detect gas leakage, and during external environment influence fuel gas flow, sensor also can be caused accurately cannot to detect gas leakage, thus easily cause the generation of potential safety hazard.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
Whether for this reason, the object of one aspect of the present invention is, provide a kind of flame that effectively can detect gas kitchen ranges to extinguish, and effectively ensure detection speed, thus avoid the gas kitchen ranges that potential safety hazard occurs in time.
The object of another aspect of the present invention is, provides a kind of control method of above-mentioned gas kitchen ranges.
For achieving the above object, the embodiment of one aspect of the present invention provides a kind of gas kitchen ranges, comprising: burner, and described burner is provided with combustion gas injection passage; Fire cover, described fire cover offers fire hole, and described fire hole is connected with described combustion gas injection passage, to be sprayed and form flame to make combustion gas by described fire hole; Color sensor, described color sensor is positioned at the below of described fire cover, and has between described color sensor and described fire hole and dodge passage; And reflecting element, described reflecting element is between described fire cover and described color sensor, and described reflecting element has reflecting surface, the setting corresponding with described fire hole of described reflecting surface, channel reflection is dodged to described color sensor, with the color by described color sensor flame detection described in the color of flame can be passed through by described reflecting surface; Wherein, the flame temperature that produces higher than fuel gas buring of the fusing point of described reflecting element.
The gas kitchen ranges that the above embodiment of the present invention provides, comprise burner, fire cover, color sensor and reflecting element, combustion gas is sprayed by the fire hole in fire cover and forms flame, fire hole in fire cover and have between color sensor and dodge passage, reflecting element has the reflecting surface be oppositely arranged with fire hole, like this, the color of the flame light that flame is dispersed by reflective surface to dodging in passage, and through dodging channel reflection to color sensor, according to the different flame colors received, color sensor judges whether flame extinguishes extremely, thus can in the abnormal extinguishing of flame, timely reminding user or carry out corresponding safeguard measure when there is the potential safety hazards such as gas leakage, thus avoid the generation of the potential safety hazard caused because of the abnormal extinguishing of flame or gas leakage, thus improve the security that user uses gas kitchen ranges, particularly, blueness or blushed flame light can be produced when flame does not extinguish, now color sensor can detect the flame color of blueness or redness, and color sensor can detect the color of burner material during fray-out of flame, thus according to the flame color detected, color sensor judges whether flame extinguishes extremely, and then judge whether gas kitchen ranges exists the hidden danger of gas leakage with this, this detection method being carried out flame detection color by color sensor, detection speed is fast, response time is short, and detect accurately, thus can when color sensor detects the color of burner material, there is gas leakage hidden danger in timely judgement gas kitchen ranges, and then timely reminding user or take corresponding safeguard measure, thus avoid the generation of potential safety hazard.
Particularly, the gas kitchen ranges that above-described embodiment provides, owing to being subject to the impact of color sensor normal working temperature scope, usual color sensor can not use under the environment of temperature higher than 200 DEG C, in order to realize using color sensor to carry out the color of flame detection, and then judge by flame color the detection method whether combustion gas leaks, color sensor is located at the bottom of burner, and temperature bottom burner is relatively low, thus effectively ensure that the normal work of color sensor, meanwhile, for realization can by the color transfer of flame light to color sensor, the relative position of fire hole adds the reflecting element with reflection function, with by the reflecting surface on reflecting element by the color reflective of flame light to color sensor, thus realize the detection of color sensor to flame light color, detect accurately, detection speed is fast, and cost is low, and because the reflecting surface on reflecting element and fire hole are oppositely arranged, this will ask reflecting element to have good resistance to elevated temperatures, with ensure reflecting element can in time and exactly by the color reflective of flame light to color sensor, thus overcome because of color sensor non-refractory, can not with flame close contact and not carrying out flame detection color by color sensor thus judging the problem whether combustion gas leaks of causing.
In addition, the gas kitchen ranges that the above embodiment of the present invention provides also has following additional technical feature:
According to one embodiment of present invention, described reflecting element is arranged on described burner or is arranged on the outside of described burner or is arranged on the center position of described fire cover, and the described reflecting element sidewall relative with described fire hole has described reflecting surface; Or described gas kitchen ranges also comprises air distribution disk, described reflecting element is arranged on described air distribution disk.
In above-described embodiment, reflecting element be arranged on burner or be arranged on outside burner or be arranged on the center position of fire cover or be arranged on air distribution disk, ensure that the fastness that reflecting element is fixing, thus ensure that the stability of reflecting element and flame contact, improve the sensitivity of reflection; The sidewall that reflecting element is relative with fire hole has reflecting surface, so that the color of the flame sprayed from fire hole is reflexed to color sensor in time by reflecting surface, realizes the detection of color sensor to flame color.
According to one embodiment of present invention, described fire cover comprises inner fire cover and outer fire cover, described inner fire cover and described outer fire cover are all connected with described combustion gas injection passage, described reflecting surface is between described inner fire cover and described outer fire cover, and the fire hole on described reflecting surface and described inner fire cover is oppositely arranged.
In above-described embodiment, fire cover comprises inner fire cover and outer fire cover, and inner fire cover and outer fire cover are all connected with combustion gas injection passage, and when the firepower of gas kitchen ranges is larger, all has flame to spray in the fire hole of interior outer fire cover; When the firepower of gas kitchen ranges is less, flame is had to spray in the fire hole of only inner fire cover, therefore, for ensureing under any state of gas kitchen ranges work, all can flame detection whether extremely extinguish in time, reflecting surface on reflecting element is located between inner fire cover and outer fire cover, and the fire hole on reflecting surface and inner fire cover is oppositely arranged, thus realize color sensor to flame whether extinguish in time and accurately detect; And the fire hole on reflecting surface and inner fire cover is oppositely arranged, and can increase the active area of reflecting surface and flame, make reflecting surface can the color of reflect flame light in time, improve reflection sensitivity, thus improve the reliability of reflection; Certainly; the gas kitchen ranges not distinguishing inner fire cover and outer fire cover can arrange this reflecting element equally; but need the reflecting surface on reflecting element and the fire hole in fire cover are oppositely arranged; to ensure that the flame color sprayed in fire hole can be reflexed to color sensor by reflecting surface; realize carrying out the object whether flame detection extinguish, all in protection scope of the present invention by flame color.
According to one embodiment of present invention, described reflecting surface is arc curve mirror or plane minute surface, and the angle between described reflecting surface and horizontal plane is greater than 0 ° is less than 90 °.
In above-described embodiment, arc curve mirror and plane minute surface all can realize function flame color being reflexed to color sensor; And by reflector design camber minute surface, effectively can increase the reflection angle of reflecting surface, thus make reflecting surface by the color of the flame light of different angles by dodging channel reflection to color sensor, thus the accuracy of color sensor detection can be improved further; Angle between reflecting surface and horizontal plane is greater than 0 ° and is less than 90 °, make reflecting surface can by more flame light by dodging channel reflection to the color sensor be positioned at bottom burner, thus improve the accuracy of color sensor detection further, improve the security of gas kitchen ranges work; Certainly, when reflecting surface is arc curve mirror, also the angle between reflecting surface and horizontal plane can be set to 90 ° or other angle than the above described.
According to one embodiment of present invention, described gas kitchen ranges also comprises operating means, and described operating means is used for transmit operation signal; And control device, described control device is electrically connected with described operating means and described color sensor respectively, described control device controls the firepower of described gas kitchen ranges according to the operation signal received, and described control device sends prompting order according to the flame color signal received and/or regulates firepower order.
In above-described embodiment, operating means is used for control device transmit operation signal, to be controlled the size of gas kitchen ranges firepower by control device, realizes the normal work of gas kitchen ranges, simultaneously when gas kitchen ranges works, control device can receive the flame color signal of color sensor feedback, and the flame color signal received when control device is fray-out of flame status signal, namely when the color that color sensor detects is the color of burner material, this timed unit judges that gas kitchen ranges exists flame and extremely extinguishes or there is gas leakage hidden danger, control device sends to remind order and/or send and regulates firepower order, so that reminding user in time, user is made to adopt safeguard measure in time, and/or the electric elements controlling gas kitchen ranges perform corresponding safeguard measure, such as can send the order of closing combustion gas injection passage to switch valve, combustion gas injection passage is closed in time to make switch valve, thus effectively avoid the generation of potential safety hazard.
According to one embodiment of present invention, described alarm set is electrically connected with described control device, and described alarm set can send alerting signal, and described control device can control the start and stop of described alarm set according to the described flame color signal received; Wherein, described alarm set comprises one or more in buzzer, loudspeaker, LED/LCD display screen, mobile communication equipment, dull and stereotyped communication apparatus.
In above-described embodiment, alarm set is electrically connected with control device, in the gas kitchen ranges course of work, when color sensor by the color state signal feedback of burner to control device, namely when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, control device then judges that abnormal misfire phenomenon appears in gas kitchen ranges, now there is the risk of gas leakage, control device controls alarm set and opens, alarm set sends alerting signal, timely reminding user, to make user take measures in time, thus avoids the generation of potential safety hazard; When color sensor by the color state signal feedback of flame light to control device, namely when color sensor detects that the flame of gas kitchen ranges does not extinguish, control device then judges that abnormal misfire phenomenon does not appear in gas kitchen ranges, now there is not the risk of gas leakage, control device controls alarm set and cuts out, control device does not send alerting signal, thus makes gas kitchen ranges keep normal operating conditions.
According to one embodiment of present invention, described gas kitchen ranges also comprises switch valve, described switch valve is located at described combustion gas injection passage place, and described combustion gas injection passage can be opened or closed, and described switch valve is electrically connected with described control device, described control device can control described switch valve and open or close described combustion gas injection passage according to the described flame color signal received; Or described switch valve is connected with described operating means, operates described operating means and described switch valve can be driven to open or close described combustion gas injection passage.
In above-described embodiment, switch valve is located at combustion gas injection passage place, switch valve can open or close combustion gas injection passage, and the opening and closedown of control device controllable switch valve, like this, in the gas kitchen ranges course of work, when color sensor by the color state signal feedback of burner to control device, namely when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, control device then judges that abnormal misfire phenomenon appears in gas kitchen ranges, now there is the risk of gas leakage, control device gauge tap valve cuts out combustion gas injection passage, thus effectively prevent combustion gas from being overflowed by combustion gas injection passage, avoid the generation of gas leakage problem, when color sensor by the color state signal feedback of flame light to control device, namely when color sensor detects that the flame of gas kitchen ranges does not extinguish, control device then judges that abnormal misfire phenomenon does not appear in gas kitchen ranges, now there is not the risk of gas leakage, control device gauge tap valve stays open the state of combustion gas injection passage, thus ensures the normal work of gas kitchen ranges, switch valve also can be connected with operating means, makes, when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, to drive switch valve to close combustion gas injection passage, namely realize the object of manual-lock combustion gas injection passage by operating means.
According to one embodiment of present invention, described operating means comprise in touch key-press, mechanical knob, operation touch screen one or more, operate the firepower size of the adjustable described gas kitchen ranges of described operating means; Or described operating means is automatic control handle, described automatic control handle is electrically connected with described control device, and described control device can control described automatic control handle and cut out according to the described flame color signal received.
In above-described embodiment, operating means comprise in touch key-press, mechanical knob, operation touch screen one or more, start by operation operating means or close gas kitchen ranges, and the firepower size during work of regulating gas kitchen range, and make when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, manual-lock gas kitchen ranges is carried out, to avoid the generation of potential safety hazard by operating means, operating means also can be automatic control handle, and control handle is electrically connected with control device automatically, like this, in the gas kitchen ranges course of work, when color sensor by the color state signal feedback of burner to control device, namely when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, control device then judges that abnormal misfire phenomenon appears in gas kitchen ranges, now there is the risk of gas leakage, control device controls automatic control handle and cuts out, the firepower of regulating gas kitchen range is zero, namely gas kitchen ranges is made to close, thus effectively prevent combustion gas from being overflowed by combustion gas injection passage, avoid the generation of gas leakage problem, when color sensor by the color state signal feedback of flame light to control device, namely when color sensor detects that the flame of gas kitchen ranges does not extinguish, control device then judges that abnormal misfire phenomenon does not appear in gas kitchen ranges, now there is not the risk of gas leakage, control device controls automatic control handle and maintains the original state, thus ensures the normal work of gas kitchen ranges.
According to one embodiment of present invention, described gas kitchen ranges also comprises control valve, described control valve is located at the oxygen channel place of described gas kitchen ranges, and the opening degree of adjustable described oxygen channel, and described control valve is electrically connected with described control device, described control device can control according to the described flame color signal received the opening degree that described control valve regulates described oxygen channel; Or described control valve is located at described combustion gas injection passage place, and the flow velocity of adjustable fuel gas, and described control valve is electrically connected with described control device, described control device can control according to the described flame color signal received the flow velocity that described control valve regulates described combustion gas.
In above-described embodiment, the oxygen channel place of gas kitchen ranges is provided with control valve, the opening degree of the adjustable oxygen channel of control valve, and then regulate the ratio of oxygen and combustion gas, like this in the gas kitchen ranges course of work, when color sensor detects that the color of flame light is for time red, and combustion gas can send red flame light when non-Thorough combustion, and by this color state signal feedback to control device time, control device control and regulation valve increases the opening degree of oxygen channel, to increase the input quantity of oxygen, enable combustion gas Thorough combustion, and then improve the efficiency of combustion of combustion gas, improve the utilization rate of combustion gas, and prevent the generation of the potential safety hazard caused because of the non-Thorough combustion of combustion gas, when color sensor detects that the color of flame light is for time blue, and combustion gas can send blue flame light when Thorough combustion, and by this color state signal feedback to control device time, control device control and regulation valve keeps the opening degree of oxygen channel, to ensure the normal work of gas kitchen ranges, also carry out the flow velocity of regulating gas by control valve, suitably to reduce the flow velocity of combustion gas when the non-Thorough combustion of combustion gas, enable combustion gas Thorough combustion, keep when combustion gas Thorough combustion the flow velocity of combustion gas constant, to ensure the normal work of gas kitchen ranges.
The embodiment of another aspect of the present invention provides a kind of control method, for controlling the gas kitchen ranges described in above-mentioned any embodiment, described control method comprises: the operation signal that the operating means receiving described gas kitchen ranges sends, and receives the flame color signal of the color sensor feedback of described gas kitchen ranges simultaneously; The firepower of described gas kitchen ranges is controlled according to the described operation signal received, and judge between the fired state chromatic zones residing for described flame color according to the described flame color signal received: if judge, flame color is in OFF state chromatic zones, the alarm set then controlling described gas kitchen ranges sends alerting signal, and/or the switch valve controlling described gas kitchen ranges cuts out the combustion gas injection passage of described gas kitchen ranges, and/or the automatic control handle controlling described gas kitchen ranges is closed; And/or flame color is in burn incompletely status color interval if judge, then the opening degree that the control valve controlling described gas kitchen ranges increases the oxygen channel of described gas kitchen ranges or the control valve controlling described gas kitchen ranges reduce the flow velocity of combustion gas; And/or flame color is in Thorough combustion status color interval, then control described gas kitchen ranges and keep former duty if judge.
The control method of the gas kitchen ranges that the above embodiment of the present invention provides, the electric elements controlling gas kitchen ranges according to the flame color signal of the color sensor feedback received perform corresponding prompting or protection act, and then abnormal to extinguish at the flame of gas kitchen ranges, when there is gas leakage hidden danger, control alarm set and send alerting signal, with reminding user, it is made to take safeguard measure, and/or the electric elements controlling gas kitchen ranges perform corresponding protection act, thus effectively avoid the generation of potential safety hazard; And when the combustion gas burn incompletely of gas kitchen ranges, control and regulation valve increases the opening degree of oxygen channel, to increase the input quantity of oxygen, or control and regulation valve reduces the flow velocity of combustion gas, enable combustion gas Thorough combustion, and then improve the efficiency of combustion of combustion gas, improve the utilization rate of combustion gas, and prevent the generation of the potential safety hazard caused because of the non-Thorough combustion of combustion gas; Moreover when the combustion gas Thorough combustion of gas kitchen ranges, control gas kitchen ranges and keep former duty, to ensure the normal work of gas kitchen ranges.In other words; the control method that the above embodiment of the present invention provides; can judge the abnormal problem extinguished or there is gas leakage potential safety hazard of flame in time and accurately, and the electric elements controlling gas kitchen ranges perform corresponding prompting or protection act, thus effectively avoid the generation of potential safety hazard.
Additional aspect of the present invention and advantage become obvious by description part below, or are recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the perspective view of the partial structurtes of gas kitchen ranges according to one embodiment of the invention;
Fig. 2 is the main TV structure schematic diagram of Fig. 1;
Fig. 3 is the schematic block diagram of the control method according to one embodiment of the invention.
Wherein, the corresponding relation in Fig. 1 and Fig. 2 between Reference numeral and component names is:
10 burners, 20 color sensors, 30 reflecting elements, 300 reflectings surface, 40 inner fire covers, 50 outer fire covers, 60 dodge passage.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here to implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.
With reference to the accompanying drawings 1 and Fig. 2 gas kitchen ranges is according to some embodiments of the invention described.
As depicted in figs. 1 and 2, according to the gas kitchen ranges that some embodiments of the present invention provide, comprise burner 10, fire cover, color sensor 20 and reflecting element 30.
Wherein, described burner 10 is provided with combustion gas injection passage;
Described fire cover offers fire hole, and described fire hole is connected with described combustion gas injection passage, to be sprayed and form flame to make combustion gas by described fire hole;
Described color sensor 20 is positioned at the bottom of described burner 10, and has between described color sensor 20 and described fire hole and dodge passage 60;
Described reflecting element 30 has reflecting surface 300, dodges passage 60 described in the color of flame can be passed through by described reflecting surface 300 and reflex to described color sensor 20, with the color by described color sensor 20 flame detection; Wherein, the flame temperature that produces higher than fuel gas buring of the fusing point of described reflecting element 30.
The gas kitchen ranges that the above embodiment of the present invention provides, comprise burner, fire cover, color sensor and reflecting element, combustion gas is sprayed by the fire hole in fire cover and forms flame, fire hole in fire cover and have between color sensor and dodge passage, reflecting element has the reflecting surface be oppositely arranged with fire hole, like this, the color of the flame light that flame is dispersed by reflective surface to dodging in passage, and through dodging channel reflection to color sensor, according to the different flame colors received, color sensor judges whether flame extinguishes extremely, thus can in the abnormal extinguishing of flame, timely reminding user or carry out corresponding safeguard measure when there is the potential safety hazards such as gas leakage, thus avoid the generation of the potential safety hazard caused because of the abnormal extinguishing of flame or gas leakage, thus improve the security that user uses gas kitchen ranges, particularly, blueness or blushed flame light can be produced when flame does not extinguish, now color sensor can detect the flame color of blueness or redness, and color sensor can detect the color signal of burner material during fray-out of flame, thus according to the flame color detected, color sensor judges whether flame extinguishes extremely, and then judge whether gas kitchen ranges exists the hidden danger of gas leakage with this, this detection method being carried out flame detection color by color sensor, detection speed is fast, response time is short, and detect accurately, thus can when color sensor detects the color of burner material, there is gas leakage hidden danger in timely judgement gas kitchen ranges, and then timely reminding user or take corresponding safeguard measure, thus avoid the generation of potential safety hazard.
Particularly, the gas kitchen ranges that above-described embodiment provides, owing to being subject to the impact of color sensor normal working temperature scope, usual color sensor can not use under the environment of temperature higher than 200 DEG C, in order to realize using color sensor to carry out the color of flame detection, and then judge by flame color the detection method whether combustion gas leaks, color sensor is located at the bottom of burner, and temperature bottom burner is relatively low, thus effectively ensure that the normal work of color sensor, meanwhile, for realization can by the color transfer of flame light to color sensor, the relative position of fire hole adds the reflecting element with reflection function, with by the reflecting surface on reflecting element by the color reflective of flame light to color sensor, thus realize the detection of color sensor to flame light color, detect accurately, detection speed is fast, and cost is low, and because the reflecting surface on reflecting element and fire hole are oppositely arranged, this will ask reflecting element to have good resistance to elevated temperatures, with ensure reflecting element can in time and exactly by the color reflective of flame light to color sensor, thus overcome because of color sensor non-refractory, can not with flame close contact and not carrying out flame detection color by color sensor thus judging the problem whether combustion gas leaks of causing.
Further, as shown in Figure 1, described reflecting element 30 is arranged on described burner 10, and described reflecting element 30 sidewall relative with described fire hole has described reflecting surface 300.
Certainly, described reflecting element 30 also can be arranged on the outside of described burner 10, and described reflecting element 30 also can be arranged on the center position of described fire cover, or described gas kitchen ranges also comprises air distribution disk, and described reflecting element 30 is arranged on described air distribution disk.
In above-described embodiment, reflecting element be arranged on burner or be arranged on outside burner or be arranged on the center position of fire cover or be arranged on air distribution disk, ensure that the fastness that reflecting element is fixing, thus ensure that the stability of reflecting element and flame contact, improve the sensitivity of reflection; The sidewall that reflecting element is relative with fire hole has reflecting surface, so that the color of the flame sprayed from fire hole is reflexed to color sensor in time by reflecting surface, realizes the detection of color sensor to flame color.
Further again, as depicted in figs. 1 and 2, described fire cover comprises inner fire cover 40 and outer fire cover 50, described inner fire cover 40 and described outer fire cover 50 are all connected with described combustion gas injection passage, described reflecting surface 300 is between described inner fire cover 40 and described outer fire cover 50, and described reflecting surface 300 is oppositely arranged with the fire hole on described inner fire cover 40.
In above-described embodiment, fire cover comprises inner fire cover and outer fire cover, and inner fire cover and outer fire cover are all connected with combustion gas injection passage, and when the firepower of gas kitchen ranges is larger, all has flame to spray in the fire hole of interior outer fire cover; When the firepower of gas kitchen ranges is less, flame is had to spray in the fire hole of only inner fire cover, therefore, for ensureing under any state of gas kitchen ranges work, all can flame detection whether extremely extinguish in time, reflecting surface on reflecting element is located between inner fire cover and outer fire cover, and the fire hole on reflecting surface and inner fire cover is oppositely arranged, thus realize color sensor to flame whether extinguish in time and accurately detect; And the fire hole on reflecting surface and inner fire cover is oppositely arranged, and can increase the active area of reflecting surface and flame, make reflecting surface can the color of reflect flame light in time, improve reflection sensitivity, thus improve the reliability of reflection; Certainly; the gas kitchen ranges not distinguishing inner fire cover and outer fire cover can arrange this reflecting element equally; but need the reflecting surface on reflecting element and the fire hole in fire cover are oppositely arranged; to ensure that the flame color sprayed in fire hole can be reflexed to color sensor by reflecting surface; realize carrying out the object whether flame detection extinguish, all in protection scope of the present invention by flame color.
In one embodiment of the present of invention, described reflecting surface 300 is arc curve mirror or plane minute surface, and the angle between described reflecting surface 300 and horizontal plane is greater than 0 ° is less than 90 °.
In above-described embodiment, arc curve mirror and plane minute surface all can realize function flame color being reflexed to color sensor; And by reflector design camber minute surface, effectively can increase the reflection angle of reflecting surface, thus make reflecting surface by the color of the flame light of different angles by dodging channel reflection to color sensor, thus the accuracy of color sensor detection can be improved further; Angle between reflecting surface and horizontal plane is greater than 0 ° and is less than 90 °, make reflecting surface can by more flame light by dodging channel reflection to the color sensor be positioned at bottom burner, thus improve the accuracy of color sensor detection further, improve the security of gas kitchen ranges work; Certainly, when reflecting surface is arc curve mirror, also the angle between reflecting surface and horizontal plane can be set to 90 ° or other angle than the above described, all in protection scope of the present invention.
In one embodiment of the present of invention, described gas kitchen ranges also comprises operating means and described control device, and described operating means is used for transmit operation signal; Described control device is electrically connected with described operating means and described color sensor 20 respectively, described control device controls the firepower of described gas kitchen ranges according to the operation signal received, and described control device sends prompting order and/adjustment firepower order according to the flame color signal received.
In above-described embodiment, operating means is used for control device transmit operation signal, to be controlled the size of gas kitchen ranges firepower by control device, realizes the normal work of gas kitchen ranges, simultaneously when gas kitchen ranges works, control device can receive the flame color signal of color sensor feedback, and the flame color signal received when control device is fray-out of flame status signal, namely when the color that color sensor detects is the color of burner material, this timed unit judges that gas kitchen ranges exists flame and extremely extinguishes or there is gas leakage hidden danger, control device sends to remind order and/or send and regulates firepower order, so that reminding user in time, user is made to adopt safeguard measure in time, and/or the electric elements controlling gas kitchen ranges perform corresponding safeguard measure, such as can send the order of closing combustion gas injection passage to switch valve, combustion gas injection passage is closed in time to make switch valve, thus effectively avoid the generation of potential safety hazard.
In one embodiment of the present of invention, described alarm set is electrically connected with described control device, and described alarm set can send alerting signal, and described control device can control the start and stop of described alarm set according to the described flame color signal received.
In above-described embodiment, alarm set is electrically connected with control device, in the gas kitchen ranges course of work, when color sensor by the color state signal feedback of burner to control device, namely when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, control device then judges that abnormal misfire phenomenon appears in gas kitchen ranges, now there is the risk of gas leakage, control device controls alarm set and opens, alarm set sends alerting signal, timely reminding user, to make user take measures in time, thus avoids the generation of potential safety hazard; When color sensor by the color state signal feedback of flame light to control device, namely when color sensor detects that the flame of gas kitchen ranges does not extinguish, control device then judges that abnormal misfire phenomenon does not appear in gas kitchen ranges, now there is not the risk of gas leakage, control device controls alarm set and cuts out, control device does not send alerting signal, now can ensure that gas kitchen ranges normally works.
In one embodiment of the present of invention, described alarm set is arranged on the body of described gas kitchen ranges, described alarm set comprise in buzzer, loudspeaker, LED/LCD display screen, mobile communication equipment, dull and stereotyped communication apparatus one or more.
In one embodiment of the present of invention, described gas kitchen ranges also comprises switch valve, described switch valve is located at described combustion gas injection passage place, and described combustion gas injection passage can be opened or closed, and described switch valve is electrically connected with described control device, described control device can control described switch valve and open or close described combustion gas injection passage according to the described flame color signal received; Or described switch valve is connected with described operating means, operates described operating means and described switch valve can be driven to open or close described combustion gas injection passage.
In above-described embodiment, switch valve is located at combustion gas injection passage place, switch valve can open or close combustion gas injection passage, and the opening and closedown of control device controllable switch valve, like this, in the gas kitchen ranges course of work, when color sensor by the color state signal feedback of burner to control device, namely when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, control device then judges that abnormal misfire phenomenon appears in gas kitchen ranges, now there is the risk of gas leakage, control device gauge tap valve cuts out combustion gas injection passage, thus effectively prevent combustion gas from being overflowed by combustion gas injection passage, avoid the generation of gas leakage problem, when color sensor by the color state signal feedback of flame light to control device, namely when color sensor detects that the flame of gas kitchen ranges does not extinguish, control device then judges that abnormal misfire phenomenon does not appear in gas kitchen ranges, now there is not the risk of gas leakage, control device gauge tap valve stays open the state of combustion gas injection passage, thus ensures the normal work of gas kitchen ranges, switch valve also can be connected with operating means, makes, when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, to drive switch valve to close combustion gas injection passage, namely realize the object of manual-lock combustion gas injection passage by operating means.It is pointed out that control device is when gauge tap valve cuts out combustion gas injection passage, can control the unlatchings such as buzzer, loudspeaker, LED/LCD display screen simultaneously, and send alerting signal.
In one embodiment of the present of invention, described operating means comprise in touch key-press, mechanical knob, operation touch screen one or more, operate the firepower size of the adjustable described gas kitchen ranges of described operating means; Or described operating means is automatic control handle, described automatic control handle is electrically connected with described control device, and described control device can control described automatic control handle and cut out according to the described flame color signal received.
In above-described embodiment, operating means comprise in touch key-press, mechanical knob, operation touch screen one or more, start by operation operating means or close gas kitchen ranges, and the firepower size during work of regulating gas kitchen range, and make when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, manual-lock gas kitchen ranges is carried out, to avoid the generation of potential safety hazard by operating means, operating means also can be automatic control handle, and control handle is electrically connected with control device automatically, like this, in the gas kitchen ranges course of work, when color sensor by the color state signal feedback of burner to control device, namely when color sensor detects that the problems such as the abnormal extinguishing of flame appear in gas kitchen ranges, control device then judges that abnormal misfire phenomenon appears in gas kitchen ranges, now there is the risk of gas leakage, control device controls automatic control handle and cuts out, the firepower of regulating gas kitchen range is zero, namely gas kitchen ranges is made to close, thus effectively prevent combustion gas from being overflowed by combustion gas injection passage, avoid the generation of gas leakage problem, when color sensor by the color state signal feedback of flame light to control device, namely when color sensor detects that the flame of gas kitchen ranges does not extinguish, control device then judges that abnormal misfire phenomenon does not appear in gas kitchen ranges, now there is not the risk of gas leakage, control device controls automatic control handle and maintains the original state, thus ensures the normal work of gas kitchen ranges.It is pointed out that control device is while the automatic control handle of control is closed, and can control the unlatchings such as buzzer, loudspeaker, LED/LCD display screen simultaneously, and send alerting signal.
In one embodiment of the present of invention, described gas kitchen ranges also comprises control valve, described control valve is located at the oxygen channel place of described gas kitchen ranges, and the opening degree of adjustable described oxygen channel, and described control valve is electrically connected with described control device, described control device can control according to the described flame color signal received the opening degree that described control valve regulates described oxygen channel; Or described control valve is located at described combustion gas injection passage place, and the flow velocity of adjustable fuel gas, and described control valve is electrically connected with described control device, described control device can control according to the described flame color signal received the flow velocity that described control valve regulates described combustion gas.
In above-described embodiment, the oxygen channel place of gas kitchen ranges is provided with control valve, the opening degree of the adjustable oxygen channel of control valve, and then regulate the ratio of oxygen and combustion gas, like this in the gas kitchen ranges course of work, when color sensor detects that the color of flame light is for time red, and combustion gas can send red flame light when non-Thorough combustion, and by this color state signal feedback to control device time, control device control and regulation valve increases the opening degree of oxygen channel, to increase the input quantity of oxygen, enable combustion gas Thorough combustion, and then improve the efficiency of combustion of combustion gas, improve the utilization rate of combustion gas, and prevent the generation of the potential safety hazard caused because of the non-Thorough combustion of combustion gas, when color sensor detects that the color of flame light is for time blue, and combustion gas can send blue flame light when Thorough combustion, and by this color state signal feedback to control device time, control device control and regulation valve keeps the opening degree of oxygen channel, to ensure the normal work of gas kitchen ranges, also carry out the flow velocity of regulating gas by control valve, suitably to reduce the flow velocity of combustion gas when the non-Thorough combustion of combustion gas, enable combustion gas Thorough combustion, keep when combustion gas Thorough combustion the flow velocity of combustion gas constant, to ensure the normal work of gas kitchen ranges.It is pointed out that control device is while the opening degree of control and regulation valve regulation oxygen channel, can control the unlatchings such as buzzer, loudspeaker, LED/LCD display screen simultaneously, and send alerting signal.
The embodiment of another aspect of the present invention provides a kind of control method, and for controlling the gas kitchen ranges described in above-mentioned any embodiment, as shown in Figure 3, described control method comprises the following steps:
Step 102: the operation signal that the operating means receiving described gas kitchen ranges sends, receives the flame color signal of the color sensor feedback of described gas kitchen ranges simultaneously;
Step 104: the firepower controlling described gas kitchen ranges according to the described operation signal received, and judge between the fired state chromatic zones residing for described flame color according to the described flame color signal received:
If judge, flame color is in OFF state chromatic zones, the alarm set then controlling described gas kitchen ranges sends alerting signal, and/or the switch valve controlling described gas kitchen ranges cuts out the combustion gas injection passage of described gas kitchen ranges, and/or the automatic control handle controlling described gas kitchen ranges is closed; And/or,
If judge, flame color is in burn incompletely status color interval, then the opening degree that the control valve controlling described gas kitchen ranges increases the oxygen channel of described gas kitchen ranges or the control valve controlling described gas kitchen ranges reduce the flow velocity of combustion gas; And/or,
If judge, flame color is in Thorough combustion status color interval, then control described gas kitchen ranges and keep former duty.
The control method of the gas kitchen ranges that the above embodiment of the present invention provides, the electric elements controlling gas kitchen ranges according to the flame color signal of the color sensor feedback received perform corresponding prompting or protection act, and then abnormal to extinguish at the flame of gas kitchen ranges, when there is gas leakage hidden danger, control alarm set and send alerting signal, with reminding user, it is made to take safeguard measure, and/or the electric elements controlling gas kitchen ranges perform corresponding protection act, thus effectively avoid the generation of potential safety hazard; And when the combustion gas burn incompletely of gas kitchen ranges, control and regulation valve increases the opening degree of oxygen channel, to increase the input quantity of oxygen, or control and regulation valve reduces the flow velocity of combustion gas, enable combustion gas Thorough combustion, and then improve the efficiency of combustion of combustion gas, improve the utilization rate of combustion gas, and prevent the generation of the potential safety hazard caused because of the non-Thorough combustion of combustion gas; Moreover when the combustion gas Thorough combustion of gas kitchen ranges, control gas kitchen ranges and keep former duty, to ensure the normal work of gas kitchen ranges.In other words; the control method that the above embodiment of the present invention provides; can judge the abnormal problem extinguished or there is gas leakage potential safety hazard of flame in time and accurately, and the electric elements controlling gas kitchen ranges perform corresponding prompting or protection act, thus effectively avoid the generation of potential safety hazard.
Described in comprehensive, gas kitchen ranges provided by the invention, by the bottom at burner, color sensor is set, and burner or air distribution disk are provided with the reflecting element that flame light flame can dispersed reflexes to color sensor, thus make gas kitchen ranges carry out the color of flame detection light by color sensor, control device can judge according to the color state signal received whether flame extinguishes, and then judge whether the potential safety hazard that there is gas leakage, thus enable control device in the abnormal extinguishing of flame, when there is gas leakage hidden danger, timely control alarm set sends alerting signal, or the associated appliance element on control gas kitchen ranges performs safeguard measure, as gauge tap valve cuts out combustion gas injection passage etc., thus timely reminding user, avoid the generation of potential safety hazard, and the detection mode of the incompatible flame detection light color that matched by color sensor and reflecting element, detect accurately, detection speed is fast, and cost is low, and effectively overcome because of color sensor non-refractory, with flame close contact and not carrying out flame detection color by color sensor thus judging the problem whether combustion gas leaks of causing, the reliability of gas kitchen ranges work can not be improved.
In describing the invention, term " installation ", " connection " etc. all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a gas kitchen ranges, is characterized in that, comprising:
Burner, described burner is provided with combustion gas injection passage;
Fire cover, described fire cover offers fire hole, and described fire hole is connected with described combustion gas injection passage, to be sprayed and form flame to make combustion gas by described fire hole;
Color sensor, described color sensor is positioned at the bottom of described burner, and has between described color sensor and described fire hole and dodge passage; With
Reflecting element, described reflecting element has reflecting surface, dodges channel reflection to described color sensor, with the color by described color sensor flame detection described in the color of flame can be passed through by described reflecting surface;
Wherein, the flame temperature that produces higher than fuel gas buring of the fusing point of described reflecting element.
2. gas kitchen ranges according to claim 1, is characterized in that,
Described reflecting element is arranged on described burner or is arranged on the outside of described burner or is arranged on the center position of described fire cover, and the described reflecting element sidewall relative with described fire hole has described reflecting surface; Or,
Described gas kitchen ranges also comprises air distribution disk, and described reflecting element is arranged on described air distribution disk.
3. gas kitchen ranges according to claim 2, is characterized in that,
Described fire cover comprises inner fire cover and outer fire cover, and described inner fire cover and described outer fire cover are all connected with described combustion gas injection passage, and described reflecting surface is between described inner fire cover and described outer fire cover, and the fire hole on described reflecting surface and described inner fire cover is oppositely arranged.
4. gas kitchen ranges according to claim 2, is characterized in that,
Described reflecting surface is arc curve mirror or plane minute surface, and the angle between described reflecting surface and horizontal plane is greater than 0 ° is less than 90 °.
5. gas kitchen ranges according to any one of claim 1 to 4, is characterized in that, also comprises:
Operating means, described operating means is used for transmit operation signal; With
Control device, described control device is electrically connected with described operating means and described color sensor respectively, described control device controls the firepower of described gas kitchen ranges according to the operation signal received, and described control device sends prompting order according to the flame color signal received and/or regulates firepower order.
6. gas kitchen ranges according to claim 5, is characterized in that, also comprises:
Alarm set, described alarm set is electrically connected with described control device, and described alarm set can send alerting signal, and described control device can control the start and stop of described alarm set according to the described flame color signal received;
Wherein, described alarm set comprises one or more in buzzer, loudspeaker, LED/LCD display screen, mobile communication equipment, dull and stereotyped communication apparatus.
7. gas kitchen ranges according to claim 5, is characterized in that, also comprises:
Switch valve, described switch valve is located at described combustion gas injection passage place, and described combustion gas injection passage can be opened or closed, and described switch valve is electrically connected with described control device, described control device can control described switch valve and open or close described combustion gas injection passage according to the described flame color signal received; Or described switch valve is connected with described operating means, operates described operating means and described switch valve can be driven to open or close described combustion gas injection passage.
8. gas kitchen ranges according to claim 5, is characterized in that,
Described operating means comprise in touch key-press, mechanical knob, operation touch screen one or more, operate the firepower size of the adjustable described gas kitchen ranges of described operating means; Or described operating means is automatic control handle, described automatic control handle is electrically connected with described control device, and described control device can control described automatic control handle and cut out according to the described flame color signal received.
9. gas kitchen ranges according to claim 5, is characterized in that, also comprises:
Control valve, described control valve is located at the oxygen channel place of described gas kitchen ranges, and the opening degree of adjustable described oxygen channel, and described control valve is electrically connected with described control device, described control device can control according to the described flame color signal received the opening degree that described control valve regulates described oxygen channel; Or described control valve is located at described combustion gas injection passage place, and the flow velocity of adjustable fuel gas, and described control valve is electrically connected with described control device, described control device can control according to the described flame color signal received the flow velocity that described control valve regulates described combustion gas.
10. a control method, is characterized in that, for controlling gas kitchen ranges as claimed in any one of claims 1-9 wherein, described control method comprises:
The operation signal that the operating means receiving described gas kitchen ranges sends, receives the flame color signal of the color sensor feedback of described gas kitchen ranges simultaneously;
Control the firepower of described gas kitchen ranges according to the described operation signal received, and judge between the fired state chromatic zones residing for described flame color according to the described flame color signal received:
If judge, flame color is in OFF state chromatic zones, the alarm set then controlling described gas kitchen ranges sends alerting signal, and/or the switch valve controlling described gas kitchen ranges cuts out the combustion gas injection passage of described gas kitchen ranges, and/or the automatic control handle controlling described gas kitchen ranges is closed; And/or,
If judge, flame color is in burn incompletely status color interval, then the opening degree that the control valve controlling described gas kitchen ranges increases the oxygen channel of described gas kitchen ranges or the control valve controlling described gas kitchen ranges reduce the flow velocity of combustion gas; And/or,
If judge, flame color is in Thorough combustion status color interval, then control described gas kitchen ranges and keep former duty.
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