CN105823091B - Gas-cooker and gas-cooker are opened fire control method automatically - Google Patents
Gas-cooker and gas-cooker are opened fire control method automatically Download PDFInfo
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- CN105823091B CN105823091B CN201610189043.8A CN201610189043A CN105823091B CN 105823091 B CN105823091 B CN 105823091B CN 201610189043 A CN201610189043 A CN 201610189043A CN 105823091 B CN105823091 B CN 105823091B
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- Prior art keywords
- cooker
- inductance coil
- gas
- expansion link
- pulse
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Classifications
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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
- F24C3/008—Ranges
-
- 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 present invention discloses a kind of gas-cooker and gas-cooker and opened fire automatically control method, wherein, gas-cooker includes sensor, the sensor includes support bar, and the impulse waveform maker to form primary Ioops, inductance coil and MCU controllers are sequentially connected in series, the support bar includes being used for the expansion link abutted with pan；Change the impedance of inductance coil when the expansion link is to towards close to the movement of the direction of inductance coil；The MCU controllers are to when the output pulse frequency for detecting inductance coil changes, control gas-cooker is opened fire.Technical scheme substantially increases the stability that gas-cooker is opened fire automatically.
Description
Technical field
The present invention relates to gas-cooker technical field, more particularly to a kind of gas-cooker and gas-cooker are opened fire control method automatically.
Background technology
Sensor is provided with the burner of the gas-cooker of prior art, if the sensor main is reached by way of electromagnetism
The purpose that automatic gas burner is opened fire.When pan is placed on this gas-cooker, the expansion link on sensor is pressurized and band
Dynamic reed pipe movement, when the contact of tongue tube is close to magnet, reed switch conduction, and then control gas-cooker to open fire automatically.Due to combustion
The burner of gas kitchen is easily demagnetized by high temperature for a long time often in the condition of high temperature, magnet, once the demagnetization of magnet reaches to a certain degree,
The automatic function of opening fire of gas-cooker will break down, it is difficult to opens fire automatically, or even auto extinguishing after opening fire, it is extremely unstable.
The content of the invention
The main object of the present invention is to provide a kind of gas-cooker, it is intended to improves the stability that gas-cooker is opened fire automatically.
To achieve the above object, gas-cooker proposed by the present invention includes sensor, and the sensor includes support bar, and
The impulse waveform maker to form primary Ioops, inductance coil and MCU controllers are sequentially connected in series, the support bar includes being used for and pot
Has the expansion link abutted；Change the impedance of inductance coil when the expansion link is to towards close to the movement of the direction of inductance coil；
The MCU controllers are to when the output pulse frequency for detecting inductance coil changes, control gas-cooker is opened fire.
Preferably, the inductance coil is to receive the pulse of Waveform generator offer, and when the expansion link is not pressurized
And when being pressurized, it is f to correspond to respectively to the MCU controllers frequency of delivery1The first pulse and frequency be f2The second pulse, when |
f1- f2| during more than or equal to pre-set threshold value, the MCU controllers control gas-cooker is opened fire.
Preferably, the inductance coil is located on the bearing of trend of the expansion link, so that the expansion link interts.
Preferably, the diameter of the inductance coil is bigger 2mm~5mm than the diameter of the expansion link.
Preferably, one end of the close inductance coil of the expansion link is provided with a metal cap.
Preferably, the support bar also include one the expansion link axially extending locating rod, the expansion link with
The flexible connection of the locating rod, the coil are sheathed on the outer surface of the locating rod.
Preferably, the interior diameter of the metal cap is bigger 1mm~3mm than the overall diameter of coil.
Preferably, the pulse frequency that the Waveform generator provides is constant.
Preferably, the sensor also includes impulse waveform processor, and the impulse waveform processor is located at MCU controls
On the circuit that device processed is connected with the inductance coil.
Preferably, comprise the following steps：
Pulse signal caused by real-time reception inductance coil；
Whether the frequency for detecting the pulse signal received changes；
If so, control gas-cooker is opened fire.
Preferably, detecting the step of whether the frequency of the pulse signal received changes includes：
According to the pulse signal received, pulse frequency maximum f is drawn1With pulse frequency minimum value f2；
Judge | f1- f2Whether | >=δ f set up, and wherein δ f are pre-set threshold value.
Preferably, before pulse signal caused by real-time reception inductance coil, in addition to：Control impulse waveform maker
Pulse is sent to inductance coil.
Preferably, the pulsed constant that the impulse waveform maker is sent.
Preferably, before pulse signal caused by real-time reception inductance coil, in addition to：An impulse waveform is controlled to handle
Device is to pulse signal rectification caused by inductance coil.
Technical scheme changes by setting an inductance type transducer on burner, and by pot pressure testing expansion link
Become the distance between expansion link and inductance coil, so as to change the impedance of inductance coil, and then caused by inductance coil itself
Pulse frequency changes, and MCU controllers detect the change of inductance coil pulse frequency and realize gas-cooker certainly in sensor
It is dynamic to open fire；Avoid magnet in traditional sensor to demagnetize and cause exception of opening fire automatically, substantially increase gas-cooker and open automatically
The stability of fire.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the structural representation of the embodiment of gas-cooker one of the present invention；
Fig. 2 is that the gas-cooker in Fig. 1 is shelved with the structural representation after pan；
Fig. 3 is the assembling structure schematic diagram of burner and sensor in Fig. 1；
Fig. 4 is the structural representation of sensor in Fig. 3；
Fig. 5 is the explosive view of sensor in Fig. 4；
Fig. 6 is the circuit member connection structure schematic diagram of sensor；
Fig. 7 is that gas-cooker of the present invention is opened fire the flow chart of control method first embodiment automatically；
Fig. 8 is that gas-cooker of the present invention is opened fire the flow chart of control method second embodiment automatically；
Fig. 9 is that gas-cooker of the present invention is opened fire the flow chart of control method 3rd embodiment automatically；
Figure 10 is that gas-cooker of the present invention is opened fire the flow chart of control method fourth embodiment automatically.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 10 | Gas-cooker | 11 | Burner |
| 12 | Sensor | 13 | Cooker racks |
| 14 | The kitchen range top | 20 | Pan |
| 121 | Support bar | 121a | Expansion link |
| 121b | Metal cap | 121c | Locating rod |
| 1211 | Elastic component | 122 | Inductance coil |
| 123 | MCU controllers | 124 | Impulse waveform maker |
| 125 | Impulse waveform processor |
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining the relative position relation under a certain particular pose (as shown in drawings) between each part, motion conditions etc., if should
When particular pose changes, then directionality instruction also correspondingly changes therewith.
In addition, the description for being related to " first ", " second " etc. in the present invention is only used for describing purpose, and it is not intended that referring to
Show or imply its relative importance or imply the quantity of the technical characteristic indicated by indicating.Thus, " first ", " are defined
At least one this feature can be expressed or be implicitly included to two " feature.In addition, the technical scheme between each embodiment can
To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme occurs
It is conflicting or will be understood that the combination of this technical scheme is not present when can not realize, also not in the protection model of application claims
Within enclosing.
Control method that the present invention proposes a kind of gas-cooker and gas-cooker is opened fire automatically.
Referring to figs. 1 to Fig. 6, Fig. 1 is the structural representation of the embodiment of gas-cooker one of the present invention；Fig. 2 is the gas-cooker in Fig. 1
It is shelved with the structural representation after pan；Fig. 3 is the assembling structure schematic diagram of burner and sensor in Fig. 1；Fig. 4 is to be passed in Fig. 3
The structural representation of sensor；Fig. 5 is the explosive view of sensor in Fig. 4；Fig. 6 is that the circuit member connection structure of sensor is illustrated
Figure.
In embodiments of the present invention, gas-cooker 10 includes burner 11 and sensor 12, and sensor 12 includes support bar 121,
And it is sequentially connected in series the impulse waveform maker 124 to form primary Ioops, inductance coil 122 and MCU controllers 123, support bar 121
Including the expansion link 121a for being abutted with pan 20, expansion link 121a is to towards close to the movement of the direction of inductance coil 122
When change inductance coil 122 impedance, MCU controllers 123 to when detect inductance coil 122 output pulse frequency occur
During change, control gas-cooker 20 is opened fire.
Specifically, reference picture 2 to Fig. 4, gas-cooker 10 includes burner 11, the kitchen range top 14 and cooker racks 13, and sensor 12 can pacify
There is a mounting hole loaded on burner 11, such as the middle part of burner 11, the expansion link 121a of sensor 12 stretches out from the mounting hole；Sensing
Device 12 can also be arranged on the side wall of burner 11.In addition, sensor 11 can also be installed on the kitchen range top 14 or cooker racks 13, as long as by pot
Tool 20 can press when putting in place to expansion link 121a, not be limited herein.Will be specifically with sensor in the description below
12 are installed on exemplified by burner 10 and illustrate.
The middle part of burner 11 of gas-cooker 10 has a mounting hole (not indicated in figure), the expansion link 121a of sensor 12 from this
Mounting hole stretches out, and when pan 20 is placed in cooker racks 13, pan 20 produces a downward pressure to expansion link 121a, makes to stretch
Bar 121a is moved down, until pan 20 is shelved in place.Here, expansion link 121a can be mounted on burner 11, such as
In the hole wall of mounting hole, the hole wall and expansion link 121a of shell fragment or spring, the shell fragment or spring attachment mounting hole are set.Can also
It is that sensor 12 also includes a base, is connected between the base and expansion link 121a by an elastic component, so that expansion link 121a
Can be capable of expansion and contraction in mounting hole.Here, it should be noted that expansion link 121a lower end is metal material, can also
It is that expansion link 121a integrally makes metal material, as long as ensure that expansion link 121a is moved down, the impedance hair of inductance coil 122
Changing, this is not restricted.
For reference picture 3 to Fig. 5, expansion link 121a has a relative both ends, and wherein one end self installation hole is to the top of burner 11
Extension, the other end are located at the lower section of burner 11.Inductance coil 122 is also disposed at the lower section of burner 11.Pan 20 is being placed in cooker racks
Before 13, expansion link 121a lower end is relatively distant from inductance coil 122, and now the impedance of inductance coil 122 is smaller, works as pot
When tool 20 is put in place, expansion link 122 moves towards close to the direction of inductance coil 122, expansion link 121a and inductance coil 122
Distance reduce, now inductance coil 122 impedance increase.Specifically, before pan 20 is placed in cooker racks 13, impulse waveform
Maker 124 to the transmission frequency of inductance coil 122 be f0Pulse (follow-up to describe for convenience, abbreviation pulse f0), inductance coil
122 receive pulse f0It is f to generate frequency afterwards1The first pulse (follow-up to describe for convenience, referred to as the first pulse f1), MCU controls
Device 123 processed records the first pulse f that inductance coil 122 is sent1, because inductance coil 122 itself has impedance, so f1It is small
In f0's.When pan 20 is placed in cooker racks 13, because the impedance of inductance coil 122 becomes big, so what inductance coil 122 exported
Pulse frequency f2It is gradually reduced, now f2It is less than in f1.Once MCU controllers 123 detect the output frequency of inductance coil 122
When rate changes, you can judgement has pan 20 to press expansion link 121a, and then controls gas-cooker 10 to open fire.
It is of course also possible to expansion link 121a lower end set a leverage, by pan 20 be placed in cooker racks 13 it
Before, the relatively close inductance coil 122 in end of the leverage, now the impedance of inductance coil 122 is larger, when pan 20 is put
When being put into, expansion link 121a is moved down, resistance of the end of leverage away from inductance coil 122, now inductance coil 122
Anti- reduction.Specifically, before pan 20 is placed in cooker racks 13, impulse waveform maker 124 sends frequency to inductance coil 122
Rate is f0Pulse, inductance coil 122 receives pulse f0It is f to generate frequency afterwards1The first pulse, MCU controllers 123 record
The first pulse f that inductance coil 122 is sent1, because inductance coil 122 itself has impedance, so f1It is less than f0's.Work as pot
When tool 20 is placed in cooker racks 13, because the impedance of inductance coil 122 diminishes, so the pulse frequency f that inductance coil 122 exports2
Gradually subtract greatly, now f2It is greater than in f1.In summary, as long as MCU controllers 123 detect the pulse that inductance coil 122 exports
Frequency changes, and either becomes and still diminishes greatly, you can judges that pan 20 presses to expansion link 121a, and then controls gas-cooker
10 open fire.
In the description below, before being seated in burner 12 with pan 20, inductance coil 122 and expansion link 121a distance is relatively
Far example is illustrated.
Technical scheme on burner 11 by setting an inductance type transducer 12, and by pan 20 to flexible
Bar 121a presses and expansion link 121a is moved closer to inductance coil 122, so as to change the impedance of inductance coil 122, enters
And pulse frequency caused by inductance coil 122 itself changes, MCU controllers 123 detect inductance coil in sensor 12
The change of 122 pulse frequencies and realize gas-cooker 10 and open fire automatically.Magnet in traditional sensor 12 is avoided to demagnetize and cause
Automatic exception of opening fire, substantially increases the stability that gas-cooker 10 is opened fire automatically.
In a preferred embodiment, inductance coil 122 is to receive the pulse of the offer of Waveform generator 124, and works as flexible
When bar 121a is not pressurized and is pressurized, it is f to correspond to respectively to the frequency of delivery of MCU controllers 1231The first pulse and frequency be f2's
Second pulse, when | f1- f2| during more than or equal to pre-set threshold value, MCU controllers 123 control gas-cooker 10 to open fire.
When Waveform generator 124 sends a pulse to inductance coil 122, inductance coil 122 can generate a frequency and be
F1 pulse, make when expansion link 121a moves down close to inductance coil 122, inductance coil 122 can generate a frequency ratio
f1The second small pulse, is calculated as f2, f2It is to change with the flexible of expansion link 121a, and f2Value be gradually reduced, due to inductance
The impedance of coil 122 increases, so f2Less than f1.When pan 20 is shelved in place, f2Reach minimum value；Because now, inductance
The impedance of coil 122 reaches maximum.During pan 20 is shelved on burner 11, MCU controllers 123 contrast always |
f1- f2| value and δ f values (pre-set threshold value), (it is not necessarily when pan 20 is placed to a certain position and is just shelved on burner 11
On extreme lower position, it is more slightly higher than the position can also, specifically using pre-set threshold value as reference, threshold values is bigger, it is desirable to pan 20
Position is lower, conversely, threshold values is smaller, it is desirable to which the position of pan 20 is higher), MCU judges | f1- f2| >=δ f, i.e. sensor 12
Sense that pan 20 is put in place, after MCU controllers 123 control gas-cooker 10 to open.
It should be noted that impulse waveform maker 124 sends pulse f to inductance coil 1220It is constant, such profit
Calculated in MCU controllers 123 | f1- f2| value.In addition, inductance coil 122 can be directly connected to burner 11 or in succession
Connect.Can also be that location structure is provided with sensor 12, inductance coil 122 is fixed on location structure, and this is not restricted.
Reference picture 4, in above-described embodiment, inductance coil 122 is located at the lower section of burner 11, inductance coil 122 and expansion link
121a position relationship can be the underface that inductance coil 122 is located at expansion link 121a lower ends, or positioned at expansion link 121a
The side-lower of lower end.In addition, expansion link 121a during moving down, can be proximate to inductance coil 122 or insert
Enter in inductance coil 122.In order that inductance coil 122, before and after pan 20 is positioned over burner 11, impedance variations are more apparent, Yu Ben
In embodiment, inductance coil 122 is located on expansion link 121a bearing of trend, so that expansion link 121a interts.In this way, it can increase
The impedance of coilloading coil 122, the second pulse f2Change is also more obvious.
Although expansion link 121a stretches into inductance coil 122 impedance that can greatly increase inductance coil 122, such as
The diameter of fruit inductance coil 122 is excessive, and the increase of the impedance to inductance coil 122 is unhelpful, and the diameter mistake of inductance coil 122
It is small, it is also possible to interfere expansion link 121a insertion.In one preferably implements, in order that larger same of the impedance of inductance coil 122
When do not influence expansion link 121a insertion, the diameter of inductance coil 122 is bigger 2mm~5mm than expansion link 121a diameter.
With continued reference to Fig. 4, expansion link 121a insertion inductance coils 122 are provided in above-described embodiment, are implemented with upper one
Unlike example, in the present embodiment, one end of expansion link 121a close inductance coil 122 is provided with a metal cap 121b.
When expansion link 121a is moved down, metal cap 121b gradually sets the cover of inductance coil 122, and the impedance of inductance coil 122 also can
Gradually increase.
Further, reference picture 4 and Fig. 5, positioned for the ease of the installation of inductance coil 122, in the present embodiment, support
Bar 121 also stretches including one in expansion link 121a axially extending locating rod 121c, expansion link 121a and locating rod 121c to be connected
Connect, inductance coil 122 is sheathed on locating rod 121c outer surface.Locating rod 121c and expansion link 121a is flexible to be connected with a variety of sides
Formula, for example, setting a flexible connector between locating rod 121c and expansion link 121a；Can also be at locating rod 121c end
Portion sets one in axially extending blind hole, sets elastic component in the bottom of the blind hole, expansion link 121a is inserted in the blind hole；Also
Can be that locating rod 121c upper ends set elastic component 1211, expansion link 121a is set in locating rod 121c's by lower end perforate
Outer surface.In addition, inductance coil 122 is set on locating rod 121c, deformation, frequency caused by inductance coil 122 are not susceptible to
Also it will not be interfered, considerably increase the stability of inductance coil 122.
Although metal cap 121b covers, which set inductance coil 122, can also greatly increase the impedance of inductance coil 122, such as
The diameter of fruit inductance coil 122 is too small, and the increase of the impedance to inductance coil 122 is unhelpful, and the diameter mistake of inductance coil 122
It is small, metal cap 121b may be caused to interfere.In a further preferred embodiment, in order that the impedance of inductance coil 122 is larger
While, metal cap 121b covers are not influenceed and set inductance coil 122, and metal cap 121b interior diameter is bigger 1mm than the overall diameter of coil
~3mm.
Reference picture 6, other waveforms, such as sine wave, sawtooth may be mingled with the pulse that inductance coil 122 is sent itself
The clutters such as ripple, clutter may influence MCU controllers 123 and determine f1Or f2Accuracy.In the present embodiment, sensor 12 is also
Including impulse waveform processor 125, impulse waveform maker 124, inductance coil 122, MCU controllers 123, impulse waveform processing
Device 125 forms a series loop.Under the filter action of impulse waveform processor 125, effectively clutter can be filtered out, make the first arteries and veins
Punching or the second impulse waveform are more preferably.
Referring to figs. 1 to Fig. 7, the present invention also provides a kind of gas-cooker 10 and opened fire automatically control method simultaneously, and this method includes
Following steps：
S10：Pulse signal caused by real-time reception inductance coil 122.
When pan 20 is not shelved on burner 11, impulse waveform maker 124 sends pulse to inductance coil 122
f0, inductance coil 122 receives pulse f0After generate the first pulse f1.Because inductance coil 122 itself has impedance, so f1
It is less than f0, MCU controllers 123 record the first pulse f that sends of inductance coil 1221.It is seated in when by pan 20 on burner 11
During, expansion link 121a is pressurized and moved down, and in the process, inductance coil 122 can generate the second pulse f2。
S20：Whether the frequency for detecting the pulse signal received changes.
Before pan 20 is placed in into cooker racks 13, expansion link 121a lower end is relatively distant from inductance coil 122, electricity
It is smaller to feel the impedance of coil 122, when pan 20 is put in place, expansion link 121a moves towards close to the direction of inductance coil 122
Dynamic, expansion link 121a and inductance coil 122 distance reduce, the impedance increase of inductance coil 122.Specifically, put in pan 20
Be put in before cooker racks 13, impulse waveform maker 124 to the transmission frequency of inductance coil 122 be f0Pulse, inductance coil 122 connects
Receive pulse f0It is f to generate frequency afterwards1The first pulse, MCU controllers 123 record the first pulse that sends of inductance coil 122
f1, because inductance coil 122 itself has impedance, so f1It is less than f0's.When pan 20 is placed in cooker racks 13, due to electricity
The impedance for feeling coil 122 becomes big, so the pulse frequency f that inductance coil 122 exports2It is gradually reduced, now f2It is less than in f1。
When MCU controllers 123 detect that the output frequency of inductance coil 122 changes, you can judgement has pan 20 to flexible
Bar 121a presses, and then controls gas-cooker 10 to open fire.
Alternatively, it is also possible to expansion link 121a lower end set a leverage, by pan 20 be placed in cooker racks 13 it
Before, the relatively close inductance coil 122 in end of the leverage, the impedance of inductance coil 122 is larger, when pan 20 is placed to
During position, expansion link 121a is moved down, and the end of leverage reduces away from inductance coil 122, the impedance of inductance coil 122.
Specifically, before pan 20 is placed in cooker racks 13, impulse waveform maker 124 to the transmission frequency of inductance coil 122 be f0
Pulse, inductance coil 122 receives pulse f0It is f to generate frequency afterwards1The first pulse, MCU controllers 123 record inductor wire
The first pulse f that circle 122 is sent1, because inductance coil 122 itself has impedance, so f1It is less than f0's.When pan 20 is put
When being put in cooker racks 13, because the impedance of inductance coil 122 diminishes, so the pulse frequency f that inductance coil 122 exports2Gradually become
Greatly, now f2It is greater than in f1。
To sum up, as long as MCU controllers 121 detect that the pulse frequency that inductance coil 122 exports changes, either become
Still diminish greatly, you can judge that pan 20 presses to expansion link 121a, and then control gas-cooker 10 to open fire.
S30：If so, control gas-cooker 10 is opened fire.
MCU controllers 123 detect that the pulse frequency that inductance coil 122 exports changes, and then control gas-cooker 10
Open fire.
Referring to figs. 1 to Fig. 8, in a further preferred embodiment, step S20 includes：
S21：According to the pulse signal received, pulse frequency maximum f is drawn1With pulse frequency minimum value f2。
Before placing cooker 20, the minimum impedance of inductance coil 122 (can certainly be maximum, herein with minimum
Example is illustrated), the first pulse f that inductance coil 122 is sent1, in this f1An and maximum.And as pan 20 is put
During on burner 11, expansion link 121a is pressurized and moved down, and expansion link 121a lower end moves closer to inductance coil
122, the impedance of inductance coil 122 gradually increases, and inductance coil 122 can generate the second pulse f2, in this f2It is change, due to
The impedance of inductance coil 122 gradually increases, f2Value can also be gradually reduced, when pan 20 is put in place, inductance coil 122
Impedance reach maximum, f2Reach minimum value.
S22：Judge | f1- f2Whether | >=δ f set up, and wherein δ f are pre-set threshold value.
During pan 20 is seated in burner 11, MCU controllers 123 contrast always | f1- f2| value and δ f values are (default
Threshold values), when pan 20 is placed to a certain position, MCU controllers 123 are judged | f1- f2| >=δ f, i.e. sensor 12 sense
Shelved in place to pan 20, after MCU controllers 123 control gas-cooker 10 to open.
In another embodiment, reference picture 9, before step S10, in addition to step S40：Control impulse waveform maker
124 send pulse to inductance coil 122.Pulse caused by inductance coil 122 is to inductor wire by impulse waveform maker 124
What circle 122 was sent, pulse f caused by inductance coil 1220It is constant.
In another embodiment, reference picture 10, before step S10, in addition to step S50：An impulse waveform is controlled to handle
Device 125 is to pulse signal rectification caused by inductance coil 122.It may be mingled with it in the pulse that inductance coil 122 is sent itself
His waveform, such as the clutter such as sine wave, sawtooth waveforms, clutter may influence MCU controllers 123 and determine f1Or f2Accuracy, it is right
The pulse that inductance coil 122 is sent, which carries out filtering, can optimize the waveform of the first pulse or the second pulse, can so control MCU
Device 123 processed determines f1Or f2When it is more accurate.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every in the present invention
Inventive concept under, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/be used in it indirectly
He is included in the scope of patent protection of the present invention related technical field.
Claims (13)
1. a kind of gas-cooker, it is characterised in that including sensor, the sensor includes support bar, and is sequentially connected in series and to be formed
Impulse waveform maker, inductance coil and the MCU controllers of primary Ioops, what the support bar included being used to abut with pan stretches
Bar；The pulse frequency that the Waveform generator provides is constant, and the expansion link is to towards close to the movement of the direction of inductance coil
When change inductance coil impedance；The MCU controllers detect that the output pulse frequency of inductance coil changes to work as
When, control gas-cooker is opened fire.
2. gas-cooker as claimed in claim 1, it is characterised in that what the inductance coil provided to receive Waveform generator
Pulse, and when the expansion link is not pressurized and is pressurized, it is f to correspond to respectively to the MCU controllers frequency of delivery1The first arteries and veins
Punching and frequency are f2The second pulse, as | f1- f2| during more than or equal to pre-set threshold value, the MCU controllers control gas-cooker
Open fire.
3. gas-cooker as claimed in claim 1, it is characterised in that the inductance coil is located at the bearing of trend of the expansion link
On, so that the expansion link interts.
4. gas-cooker as claimed in claim 2, it is characterised in that the interior diameter of the inductance coil is outer than the expansion link
Big 2mm~the 5mm of diameter.
5. gas-cooker as claimed in claim 1, it is characterised in that one end of the close inductance coil of the expansion link is set
It is equipped with a metal cap.
6. gas-cooker as claimed in claim 5, it is characterised in that the support bar also includes one in the axial direction of the expansion link
The locating rod of extension, the expansion link are sheathed on the outer surface of the locating rod with the flexible connection of the locating rod, the coil.
7. the gas-cooker as described in claim 5 or 6, it is characterised in that overall diameter of the interior diameter of the metal cap than coil
Big 1mm~3mm.
8. gas-cooker as claimed in claim 1, it is characterised in that the sensor also includes impulse waveform processor, described
Impulse waveform processor is located on the circuit that the MCU controllers are connected with the inductance coil.
The control method 9. a kind of gas-cooker is opened fire automatically, wherein, the gas-cooker includes being sequentially connected in series the sensing to form primary Ioops
Device, the impulse waveform maker of pulsed constant, inductance coil and MCU controllers, it is characterised in that the control method include with
Lower step：
Pulse signal caused by real-time reception inductance coil；
Whether the frequency for detecting the pulse signal received changes；
If so, control gas-cooker is opened fire.
The control method 10. gas-cooker as claimed in claim 9 is opened fire automatically, it is characterised in that detect the pulse letter received
Number frequency the step of whether changing include：
According to the pulse signal received, pulse frequency maximum f is drawn1With pulse frequency minimum value f2；
Judge | f1- f2Whether | >=δ f set up, and wherein δ f are pre-set threshold value.
The control method 11. gas-cooker as claimed in claim 9 is opened fire automatically, it is characterised in that in real-time reception inductance coil
Before caused pulse signal, in addition to：Impulse waveform maker is controlled to send pulse to inductance coil.
The control method 12. gas-cooker as claimed in claim 11 is opened fire automatically, it is characterised in that the impulse waveform maker
The pulsed constant of transmission.
The control method 13. gas-cooker as claimed in claim 9 is opened fire automatically, it is characterised in that in real-time reception inductance coil
Before caused pulse signal, in addition to：An impulse waveform processor is controlled to pulse signal rectification caused by inductance coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| ES2731680A1 (en) * | 2018-05-16 | 2019-11-18 | Bsh Electrodomesticos Espana Sa | GAS COOKING DEVICE DEVICE (Machine-translation by Google Translate, not legally binding) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150646A (en) * | 1995-04-20 | 1997-05-28 | 卓科株式会社 | Displacement sensor |
| CN201137990Y (en) * | 2007-12-13 | 2008-10-22 | 谭启仁 | Commercial energy saving device of gas cooker adopting ultrasonic detection |
| CN201593817U (en) * | 2009-08-17 | 2010-09-29 | 浙江融信科技发展有限公司 | Device for igniting gas stove or fuel stove automatically |
| CN202040850U (en) * | 2011-04-27 | 2011-11-16 | 成都泽鑫电脑网络有限责任公司 | Control device of intelligent domestic gas cooker capable of preventing burning without pan |
| CN102563721A (en) * | 2012-02-27 | 2012-07-11 | 美的集团有限公司 | Automatic fire controlled gas range |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100043774A1 (en) * | 2008-08-22 | 2010-02-25 | Kao Hsung Tsung | Knob igniter of a gas stove |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150646A (en) * | 1995-04-20 | 1997-05-28 | 卓科株式会社 | Displacement sensor |
| CN201137990Y (en) * | 2007-12-13 | 2008-10-22 | 谭启仁 | Commercial energy saving device of gas cooker adopting ultrasonic detection |
| CN201593817U (en) * | 2009-08-17 | 2010-09-29 | 浙江融信科技发展有限公司 | Device for igniting gas stove or fuel stove automatically |
| CN202040850U (en) * | 2011-04-27 | 2011-11-16 | 成都泽鑫电脑网络有限责任公司 | Control device of intelligent domestic gas cooker capable of preventing burning without pan |
| CN102563721A (en) * | 2012-02-27 | 2012-07-11 | 美的集团有限公司 | Automatic fire controlled gas range |
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