CN109708771A - A kind of gas-cooker temperature sensor - Google Patents
A kind of gas-cooker temperature sensor Download PDFInfo
- Publication number
- CN109708771A CN109708771A CN201910178443.2A CN201910178443A CN109708771A CN 109708771 A CN109708771 A CN 109708771A CN 201910178443 A CN201910178443 A CN 201910178443A CN 109708771 A CN109708771 A CN 109708771A
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- sensing cap
- temperature
- cap
- sensing
- temperature sensor
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- 238000010411 cooking Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 239000003381 stabilizer Substances 0.000 claims description 3
- 238000004861 thermometry Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- 238000009529 body temperature measurement Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000004280 healthy diet Nutrition 0.000 description 1
- -1 heterocyclic amine Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of gas-cooker temperature sensors, it senses cap collet and sensing cap riveted and is forming an enclosure space, the enclosure space completely cuts off thermocouple head metal and the sensing cap back side with outside air completely, the influence of extraneous hot-air convection heat exchange is reduced, and sensing cap back radiant heat transfer is influenced.Structure of the invention is compact, it is easy for installation, it is larger to sense cap hunting range, is in close contact with cookware base, the placement position of the adaptive a variety of different cookers of energy and cooker, it is quick on the draw, automatic identification pan-free state, fire-proof and thermal-insulation ability is strong, and temperature measurement accuracy is high, temperature transmitting is accurate, can accurately detect cookware base temperature signal in real time.
Description
Technical field
The present invention relates to household gas range technical field, especially a kind of temperature sensor for gas-cooker.
Background technique
As the improvement of people's living standards, the idea of healthy diet is gradually rooted in the hearts of the people, but using general gas stove
Temperature is not easy to control in cooking process, and food is easy to overheat burnt, smoke, generates the BaP for making one carcinogenic, heterocyclic amine；So
Quickly, precisely, intelligent control kettle temperature become a kind of inexorable trend and demand.
Existing gas-cooker temperature sensor majority is reduced based on burning prevention function using the scheme for increasing heat-insulated layer number
The influence of Fire Radiation heat and hot-air to sensor, but temperature measuring point generally opening or semiclosed mode, still thermal convection
It is affected, causes that response speed is slow, temperature sensing error is big, be not suitable for needing temperature in fast accurate response pot during cooking
Degree, can only simply adapt to cook or great error range in burning prevention function.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above-mentioned problems of the prior art, reduce sensing cap and its outside
The heat of sensor senses cap external environment and the bottom of a pan are carried out heat exchange, while reducing entire sensing by the heat exchange of portion's environment
The thermal capacity on device head provides a kind of gas-cooker temperature sensor, enhances response speed, improves measurement accuracy.
The present invention uses under type such as to realize.A kind of gas-cooker temperature sensor, including sense cap and connect with sensing cap bottom
The thermocouple connect, it is characterised in that further include sensing cap collet, sensing cap collet and sensing cap, which rivet together to form, to be passed
Feel cap assembly, form an enclosure space below sensing cap, senses cap and sensing cap collet and pass through sensing cap compressed spring
It is supported in support component, the conducting wire of thermocouple passes through the casing of sensing cap collet and support component lower end.The enclosure space
Thermocouple head metal and the sensing cap back side are completely cut off completely with outside air, reduce the influence of extraneous hot-air convection heat exchange,
And sensing cap back radiant heat transfer is influenced, improve detection accuracy.The thermal capacity of structural member is very small simultaneously, greatly improves biography
Sensor response speed improves real time temperature accuracy.Telescopic sensing cap assembly can move up and down and can circumferencial direction freedom
It swings, is close to the bottom of a pan, improve reliability.
Further, sensing cap collet center is connected with instlated tubular, the conducting wire of thermocouple pass through it is described every
Heat pipe, the instlated tubular prevent the tiny thermocouple wire in head anti-by being squeezed and deformed closed conduct and fixing the conducting wire of thermocouple
It moves and is broken again.
Further, there are also thermally conductive housings, the thermally conductive housing to be compressed by thermally conductive housing for the sensing cap assembly periphery
Spring is mounted in support component, telescopic structure, is moved up and down and is swung around, and is conducive to be close to the bottom of a pan.The sensing cap
There is uniform annular gap between component and thermally conductive housing, the support component has corresponding annular gap to form airflow channel,
The sundries etc. for reducing direct heat transfer and falling down for top gap to be discharged.
Further, it is planar annular at the top of the thermally conductive housing, increases the heat transfer area with the bottom of a pan.
Further, the support component is installed on the support by support component compressed spring.
Further, there is corresponding guide part on the support component and support.
Further, there is the heat conduction ring for being close to and having therewith more high heat conductance in the thermally conductive outer set upper side.Make heat-insulated outer
The heat of set, faster with the bottom of a pan heat exchange, makes the temperature difference in surrounding and the bottom of a pan smaller by heat conduction ring.
Further, the sensing cap is installed on heat conduction ring by stabilizer blade.Sensing cap assembly can be relatively on heat conduction ring
Lower slider guarantees the concentricity of sensing cap and heat conduction ring, and reducing the heat radiation increased by decentraction influences；Sense cap with it is thermally conductive
Ring is point contact, reduces contact heat conductien.
Further, the support component lower end is also equipped with microswitch trigger device.
Further, the temperature sensor further includes the sensing cap collet thermometric line arranged side by side with thermocouple, end
It is all connected with controller, sensing cap collet thermometric visits point and visits point lower section positioned at sensing cap thermometric, sensing inside cap assembly；Branch
The cannula end of support component lower end connects blower by hose.
The control method of the temperature sensor of double thermometric lines as described above visits point when detecting sensing cap collet thermometric
II temperature is visited when point I temperature is higher than a certain value X than sensing cap thermometric starts blower, visits point II temperature to thermometric and thermometric visits point I
The temperature difference stops air blast when being less than a certain value Y, is maintained at sensing cap temperature with a certain ambient temperature differences below by blower
In a certain range, make lower section environment temperature to greatest extent close to sensing cap temperature, to reduce lower section environment to sensing cap thermometric
Influence.
The thermometry of temperature sensor as described above, controller, which is collected, visits point I temperature value TIWith spy point II temperature
Angle value TII, variation function f(T is calculated according to default formulaII), then by temperature value TIWith variation function f(TII) be added obtain
Cooking bottom temperature T0It is used for control program.That is cooking bottom temperature T0=TI+ f(TII), f(TII) it is a variation function, it is surveyed by experiment
Try T0、TIData derive that, as the supplement of ambient temperature effect, gained temperature error is than single further according to changing rule is summarized
The measured value of an only thermocouple is much smaller.
Compared with prior art, technical solution of the present invention bring is the utility model has the advantages that compact-sized, easy for installation, sensing cap
Hunting range is larger, is in close contact with cookware base, the placement position of the adaptive a variety of different cookers of energy and cooker, reaction
Sensitive, automatic identification pan-free state, fire-proof and thermal-insulation ability is strong, and temperature measurement accuracy is high, and temperature transmitting is accurate, can accurately detect and cook a meal in real time
Have bottom temp signal, acquires and be supplied to controller and carry out automatically controlling combustion state.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of temperature sensor of the invention；
Fig. 2 is microswitch scheme of installation；
Fig. 3 is the structural schematic diagram on the temperature sensor head with heat conduction ring；
Fig. 4 is the structural schematic diagram of the temperature sensor with two thermometric lines.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1, as shown in Figure 1, a kind of gas-cooker temperature sensor, including sense cap 1 and connect with sensing 1 bottom of cap
Thermocouple 2, for the sensing cap 1 of the head of thermocouple 2 and high thermal conductivity material using riveting, the riveted holes of sensing cap 1 are cross
To；It sensing cap 1, sensing cap compressed spring 4 and senses cap collet 3 and is linked together composition by sensing the riveted foot on cap 1
Cap assembly is sensed, forms an enclosure space below sensing cap 1, cap 1 and sensing cap collet 3 is sensed and passes through sensing cap compression
Spring 4 is supported in support component 6, and sensing 3 center of cap collet is connected with instlated tubular 5, and the conducting wire of thermocouple 2 passes through institute
The casing 7 for stating 6 lower end of instlated tubular 5 and support component connects controller, and instlated tubular 5 is by being squeezed and deformed closed conduct and fixed heat
The conducting wire of galvanic couple 2 prevents the tiny thermocouple wire in head from moving and being broken repeatedly, senses the enclosure space in cap assembly for thermocouple
2 head metals and sensing 1 back side of cap completely cut off completely with outside air, reduce influence that extraneous hot-air convection exchanges heat and right
Sensing 1 bottom radiant heat transfer of cap influences, and improves detection accuracy, while the thermal capacity of structural member is very small, greatly improves sensor
Response speed improves real time temperature accuracy.Sensing cap compressed spring 4 enables sensing cap assembly to move up and down simultaneously can circumference side
To freely swinging, it is close to the bottom of a pan, improves reliability.
Cap assembly periphery is sensed there are also thermally conductive housing 10, thermally conductive housing 10 is mounted on branch by thermally conductive housing compressed spring 11
On support component 6, telescopic structure can be moved up and down and be swung around, and be conducive to be close to the bottom of a pan；It is annular at the top of thermally conductive housing 2
Plane increases the heat transfer area with the bottom of a pan.There are uniform annular gap, support component 4 between sensing cap assembly and thermally conductive housing 2
There is corresponding annular gap to form airflow channel, both can be reduced direct heat transfer can be used for discharge top gap fall down it is miscellaneous
Object etc..
Support component 6 is mounted on support 9 by support component compressed spring 8, is had in support component 6 and support 9 corresponding
Guide part, the casing 7 of 6 lower end of support component is equipped with 12 trigger device of microswitch, as shown in Fig. 2, telescopic up and down motion
Structure, convenient for identifying whether seat pot.
Embodiment 2, as shown in figure 3, be different from embodiment 1 is that thermally conductive 10 upper end of housing has abutting therewith and has higher
The heat conduction ring 13 of thermal conductivity, sensing cap 1 are installed on heat conduction ring 13 by stabilizer blade 14.The heat of insulated sheath 10 is set to pass through heat conduction ring
13, faster with the bottom of a pan heat exchange, make the temperature difference in surrounding and the bottom of a pan smaller；Sensing cap 1 can be slided up and down with respect to heat conduction ring 13, circle
Circumferential direction is rotated with heat conduction ring 13, guarantees the concentricity of sensing cap 1 and heat conduction ring 13, reduces the heat radiation increased by decentraction
It influences；It senses cap 1 and heat conduction ring 13 is point contact, reduce contact heat conductien.
Embodiment 3, unlike above embodiments, as shown in figure 4, the temperature sensor further includes and thermocouple
2 sensing cap collet thermometric lines 14 arranged side by side, end are all connected with controller, and the thermometric of sensing cap collet thermometric line 14 visits point II
It is visited below point I positioned at sensing 1 thermometric of cap, inside sensing cap assembly；7 end of casing of 6 lower end of support component passes through hose
15 connection blowers 16.
The control method of the temperature sensor of double thermometric lines as described above is visited when detecting sensing 3 thermometric of cap collet
Point II temperature is visited when point I temperature is higher than a certain value X than sensing 1 thermometric of cap starts blower 16, visits point II temperature and thermometric to thermometric
It visits when the point I temperature difference is less than a certain value Y and stops air blast, make to sense 1 temperature of cap and a certain environment temperature below by blower 16
Difference keeps in a certain range, making lower section environment temperature to greatest extent close to sensing cap temperature, to reduce lower section environment to biography
Feel the influence of 1 thermometric of cap, X and Y value can be set between 5 DEG C -20 DEG C.Wind is successively from blower 16, hose 15, casing 7, support
Hole discharge around component 6,10 inner space of thermally conductive housing and support component 6, arrow direction as shown in Figure 4.
The thermometry of temperature sensor as described above, controller, which is collected, visits point I temperature value TIWith spy point II temperature
Angle value TII, variation function f(T is calculated according to default formulaII), then by temperature value TIWith variation function f(TII) be added obtain
Cooking bottom temperature T0It is used for control program.That is cooking bottom temperature T0=TI+ f(TII), f(TII) it is a variation function, it is surveyed by experiment
Try T0、TIData derive that, as the supplement of ambient temperature effect, gained temperature error is than single further according to changing rule is summarized
The measured value of an only thermocouple is much smaller.
Claims (12)
1. a kind of gas-cooker temperature sensor, including sensing cap and the thermocouple being connect with sensing cap bottom, it is characterised in that also
Including sensing cap collet, sensing cap collet and sensing cap, which rivet together, forms sensing cap assembly, rectangular in the case where sensing cap
At an enclosure space, senses cap and sensing cap collet and be supported in support component by sensing cap compressed spring, thermocouple
Conducting wire pass through sensing cap collet and support component lower end casing.
2. temperature sensor according to claim 1, it is characterised in that sensing cap collet center is connected with heat-insulated
It manages, the conducting wire of thermocouple passes through the instlated tubular, and the instlated tubular is by being squeezed and deformed closed conduct and fixing leading for thermocouple
Line.
3. temperature sensor according to claim 1, it is characterised in that the sensing cap assembly periphery there are also thermally conductive housing,
The thermally conductive housing is mounted in support component by thermally conductive housing compressed spring, between the sensing cap assembly and thermally conductive housing
There is uniform annular gap, the support component has corresponding annular gap.
4. temperature sensor according to claim 3, it is characterised in that be planar annular at the top of the thermally conductive housing.
5. temperature sensor according to claim 1, it is characterised in that the support component compresses bullet by support component
Spring is installed on the support.
6. temperature sensor according to claim 5, it is characterised in that have in the support component and support and lead accordingly
To part.
7. temperature sensor according to claim 3, it is characterised in that the thermally conductive outer set upper side, which has, to be close to therewith and have
There is the heat conduction ring of more high heat conductance.
8. temperature sensor according to claim 7, it is characterised in that the sensing cap is installed on heat conduction ring by stabilizer blade.
9. temperature sensor according to claim 1, it is characterised in that the support component lower end is also equipped with microswitch
Trigger device.
10. temperature sensor according to claim 1, it is characterised in that further include that the sensing cap arranged side by side with thermocouple is heat-insulated
Thermometric line is covered, end is all connected with controller, and sensing cap collet thermometric visits point and visits point lower section positioned at sensing cap, is sensing cap group
Inside part；The cannula end of support component lower end connects blower by hose.
11. the control method of temperature sensor as claimed in claim 10 visits point II temperature ratio when detecting collet thermometric
Sensing cap thermometric, which is visited when point temperature is higher than a certain value X, starts blower, visits point II temperature to collet thermometric and sensing cap 1 visits point I
The temperature difference stops air blast when being less than a certain value Y, is maintained at sensing cap temperature with a certain ambient temperature differences below by blower
In a certain range, make lower section environment temperature to greatest extent close to sensing cap temperature, to reduce lower section environment to the shadow of sensing cap
It rings.
12. the thermometry of temperature sensor as claimed in claim 10, controller, which is collected, visits point I temperature value TIAnd spy
Point II temperature value TII, variation function f(T is calculated according to default formulaII), then by temperature value TIWith variation function f(TII) phase
Add and obtains cooking bottom temperature T0It is used for control program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910178443.2A CN109708771A (en) | 2019-03-11 | 2019-03-11 | A kind of gas-cooker temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910178443.2A CN109708771A (en) | 2019-03-11 | 2019-03-11 | A kind of gas-cooker temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109708771A true CN109708771A (en) | 2019-05-03 |
Family
ID=66266536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910178443.2A Pending CN109708771A (en) | 2019-03-11 | 2019-03-11 | A kind of gas-cooker temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109708771A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1183020A (en) * | 1997-09-17 | 1999-03-26 | Rinnai Corp | Pan bottom temperature sensor |
| JPH11201461A (en) * | 1998-01-09 | 1999-07-30 | Rinnai Corp | Pan bottom sensor for inner flame type burner |
| CN203432706U (en) * | 2013-03-12 | 2014-02-12 | 罗斯蒙德公司 | Temperature sensing system, process measuring system and insertion piece |
| CN203465028U (en) * | 2013-08-16 | 2014-03-05 | 肇庆爱晟电子科技有限公司 | Multi-channel temperature monitor based on NTC temperature sensor |
| CN205079875U (en) * | 2015-08-05 | 2016-03-09 | 华帝股份有限公司 | Separate heat insulation suspension type temperature sensor |
| CN206094184U (en) * | 2016-08-26 | 2017-04-12 | 华帝股份有限公司 | Heat insulation type temperature sensing probe for range |
| CN207648866U (en) * | 2017-12-27 | 2018-07-24 | 宁波方太厨具有限公司 | A kind of temperature measuring equipment for gas-cooker |
| CN208058932U (en) * | 2018-03-20 | 2018-11-06 | 广东美的厨房电器制造有限公司 | Temperature sensor and gas-cooker |
| CN209541923U (en) * | 2019-03-11 | 2019-10-25 | 迅达科技集团股份有限公司 | A kind of gas-cooker temperature sensor |
-
2019
- 2019-03-11 CN CN201910178443.2A patent/CN109708771A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1183020A (en) * | 1997-09-17 | 1999-03-26 | Rinnai Corp | Pan bottom temperature sensor |
| JPH11201461A (en) * | 1998-01-09 | 1999-07-30 | Rinnai Corp | Pan bottom sensor for inner flame type burner |
| CN203432706U (en) * | 2013-03-12 | 2014-02-12 | 罗斯蒙德公司 | Temperature sensing system, process measuring system and insertion piece |
| CN203465028U (en) * | 2013-08-16 | 2014-03-05 | 肇庆爱晟电子科技有限公司 | Multi-channel temperature monitor based on NTC temperature sensor |
| CN205079875U (en) * | 2015-08-05 | 2016-03-09 | 华帝股份有限公司 | Separate heat insulation suspension type temperature sensor |
| CN206094184U (en) * | 2016-08-26 | 2017-04-12 | 华帝股份有限公司 | Heat insulation type temperature sensing probe for range |
| CN207648866U (en) * | 2017-12-27 | 2018-07-24 | 宁波方太厨具有限公司 | A kind of temperature measuring equipment for gas-cooker |
| CN208058932U (en) * | 2018-03-20 | 2018-11-06 | 广东美的厨房电器制造有限公司 | Temperature sensor and gas-cooker |
| CN209541923U (en) * | 2019-03-11 | 2019-10-25 | 迅达科技集团股份有限公司 | A kind of gas-cooker temperature sensor |
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