CN109974037B - Temperature measuring device for gas stove - Google Patents
Temperature measuring device for gas stove Download PDFInfo
- Publication number
- CN109974037B CN109974037B CN201711444901.XA CN201711444901A CN109974037B CN 109974037 B CN109974037 B CN 109974037B CN 201711444901 A CN201711444901 A CN 201711444901A CN 109974037 B CN109974037 B CN 109974037B
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- China
- Prior art keywords
- heat shield
- temperature sensor
- temperature
- support
- cavity
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- 230000002093 peripheral effect Effects 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 22
- 238000009529 body temperature measurement Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- 230000003139 buffering effect Effects 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010285 flame spraying Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a temperature measuring device for a gas stove, which comprises a temperature sensor (1) and a support (2) thereof, and is characterized in that: the periphery of the top of the support (2) is provided with a heat shield (3) which surrounds the temperature sensor (1), and the top of the temperature sensor (1) is lower than the top of the heat shield (3). Compared with the prior art, the temperature measuring structure reduces the direct influence of external high-temperature smoke and heat radiation on the temperature sensor (1), ensures that the temperature sensor (1) can measure the temperature of the bottom of the pot in a delayed manner, and reduces the probability of misjudgment of the dry burning prevention function.
Description
Technical Field
The utility model relates to the technical field of household gas stoves, in particular to a temperature measuring device for a gas stove.
Background
At present, the gas stove has very wide application in the life of people. In order to accurately control the required optimal cooking temperature and the temperature of the cookware during cooking food, a temperature sensor is generally arranged to solve the accidents such as overtemperature, burnt pot, dry pot burning, flameout and the like.
To facilitate the mounting of the temperature sensor on the gas range, several mounting structures have been disclosed. For example, chinese patent No. ZL201020300872.7 (bulletin No. CN 201452487U) discloses a burner of a gas stove, which is provided with a sensor detection hole at the center of the burner, and a temperature sensor for detecting the bottom temperature is arranged in the sensor detection hole, and in the use process, the temperature sensor can effectively detect the bottom temperature, when dry burning occurs, the bottom temperature will be greatly increased, and the temperature sensor can directly and effectively sense the temperature change, so that the controller of the gas stove can effectively cut off gas, thereby achieving the purpose of preventing dry burning; for another example, chinese patent No. ZL201520122143.7 (bulletin No. CN 204534587U) discloses a heat-insulating inner fire cover, a burner and a gas stove for a gas stove, where the gas stove includes a heat-insulating inner fire cover, and the heat-insulating inner fire cover includes a flame-spraying ring and a heat-insulating element, the flame-spraying ring includes a top surface, the top surface is provided with an opening through which a temperature sensor passes, the heat-insulating element is disposed on the top surface and includes a plurality of baffle plates, and the baffle plates are disposed around the opening at intervals, so that flame and generated heat of combustion of the gas stove can be blocked, and the purpose of protecting the temperature sensor is achieved.
The temperature sensor of the existing gas stove is exposed outside and/or is directly close to the bottom of the pot, so that the temperature sensor is greatly influenced by external high-temperature smoke and heat radiation, the temperature change sensed by the temperature sensor is relatively quick, and particularly when the temperature is monitored to rise rapidly, the temperature sensor is easy to be mistakenly considered as a dry burning signal, but in many occasions, inconvenience is brought to users in cooking.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides the accurate temperature measuring device which reduces the influence of external high-temperature smoke and heat radiation on the temperature sensor, can delay the temperature sensor to measure the temperature of the bottom of the pot and reduces misjudgment of the dry burning prevention function.
The technical scheme adopted for solving the technical problems is as follows: a temperature measuring device for a gas cooker, comprising a temperature sensor and a support thereof, wherein: the top periphery of support is provided with the heat exchanger, will make temperature sensor surround wherein, and temperature sensor's top is less than the top of heat exchanger.
Further, the heat shield is provided with at least two layers of peripheral walls, a heat insulation cavity is formed between the two layers of peripheral walls, and the temperature sensor is arranged in the inner peripheral wall.
Preferably, the top of the heat shield is open, the heat shield comprises an outer heat shield and an inner heat shield, and a cavity between the outer heat shield and the inner heat shield is an outer heat shield cavity; at least the lower part of the temperature sensor is positioned in the inner heat insulation cavity of the inner heat insulation cover.
Further, the inner heat shield is of a double-layer structure, a heat insulating cavity is formed between the peripheral wall of the outer layer and the peripheral wall of the inner layer, and the peripheral wall of the inner layer encloses the inner heat insulating cavity.
As an improvement, a spring is arranged in the outer heat insulation cavity between the outer heat insulation cover and the inner heat insulation cover, and the spring enables the outer heat insulation cover to be always reset upwards and keeps the top of the outer heat insulation cover higher than the top of the temperature sensor. The bottom of the pan is ensured to be firstly contacted with the sleeve and finally contacted with the sensor in the pan sitting process, the sensor is protected, and the damage of the sensor caused by the impact of the pan is reduced.
Preferably, the spring is sleeved outside the inner heat shield, the lower end of the spring is propped against the outer convex rib on the corresponding outer peripheral wall of the inner heat shield, and the upper end of the spring is propped against the inner flange on the top of the outer heat shield.
Preferably, the top of the heat shield is closed, and the temperature sensor is positioned below the closed top of the heat shield. The heat shield is preferably made of metal with poor heat insulation performance, so that the temperature sensor 1 can receive the temperature of the bottom of the pot, and the detected temperature has a delay buffering effect relative to the change of the temperature in the pot.
As improvement, the heat shield is of a double-layer structure, an outer heat insulation cavity is formed between the peripheral wall of the outer layer and the peripheral wall of the inner layer, the peripheral wall of the inner layer encloses an inner heat insulation cavity, and the temperature sensor is arranged in the inner heat insulation cavity.
Further, the support is of a hollow tubular structure, the temperature sensor is a wired sensor, and a wire of the temperature sensor is arranged in the hollow tube of the support in a penetrating manner.
Preferably, the support is L-shaped and further comprises a support leg supported at the lower part of the vertical section of the support, the upper part of the support leg is provided with a clamping seat which can be clamped into the support leg, and the top of the support leg is abutted under the annular outer convex part at the corresponding position of the support leg for fixing and supporting the whole support leg.
Compared with the prior art, the temperature measuring structure has the advantages that the temperature buffering cavities are arranged in the sensor head, so that the temperature of the air around the temperature sensor cannot be changed rapidly due to rapid rising of the temperature of the flue gas, the temperature at the outer side cannot be directly influenced on the temperature sensor, and the temperature sensor has a delay buffering effect when detecting the temperature of the bottom of the pot, so that the probability of misjudgment of a dry burning prevention function is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present utility model.
Fig. 2 is a cross-sectional view of a first embodiment of the present utility model.
Fig. 3 is an exploded view of fig. 2.
Fig. 4 is a schematic structural diagram of a second embodiment of the present utility model.
Fig. 5 is a cross-sectional view of a second embodiment of the present utility model.
Fig. 6 is an exploded view of fig. 5.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
Example 1
As shown in fig. 1 to 3, a first embodiment of the temperature measuring device for a gas range according to the present utility model is shown. The temperature measuring device comprises a temperature sensor 1 and a support 2.
Wherein,
the outer periphery of the top of the support 2 is provided with a heat shield 3, which encloses the temperature sensor 1 in question, and the top of the temperature sensor 1 is lower than the top of the heat shield 3.
The support 2 is of a hollow tubular structure and is L-shaped, the temperature sensor 1 is a wired sensor, and a lead 6 of the temperature sensor is arranged in the hollow tube of the support 2 in a penetrating way.
The heat shield 3 has at least two peripheral walls with a heat-insulating cavity formed therebetween, and the temperature sensor 1 is disposed within the inner peripheral wall.
The top of the heat shield 3 is open, the heat shield 3 comprises an outer heat shield 31 and an inner heat shield 32, and a cavity between the outer heat shield 31 and the inner heat shield 32 is an outer heat shield cavity 33; the temperature sensor 1 is located at least in its lower part in an inner insulating chamber 34 of the inner heat shield 32.
The inner heat shield 32 has a double-layer structure, a heat insulating chamber 35 is formed between an outer peripheral wall 321 and an inner peripheral wall 322, and the inner peripheral wall 322 encloses the inner heat insulating chamber 34.
A spring 4 is provided in the outer heat insulating chamber 33 between the outer heat insulating cover 31 and the inner heat insulating cover 32, which spring 4 gives the outer heat insulating cover 31 a tendency to always return upwards and maintains the top of the outer heat insulating cover 31 higher than the top of the temperature sensor 1.
The spring 4 is sleeved outside the inner heat shield 32, the lower end of the spring 4 is abutted against the outer convex rib on the corresponding outer peripheral wall 321 of the inner heat shield 32, and the upper end of the spring 4 is abutted against the inner flange on the top of the outer heat shield 31.
In the embodiment, the temperature buffer area is formed according to the structures of the three heat insulation cavities, so that the temperature of the air around the temperature sensor 1 cannot change sharply due to the rapid rise of the temperature of the flue gas, and the main object of temperature measurement of the temperature sensor 1 is the bottom of the pot; the protection effect on the temperature sensor is achieved, and the damage of the temperature sensor caused by the impact of the pot is reduced.
Example two
Fig. 4 to 6 show a second embodiment of the temperature measuring device for a gas range according to the present utility model. The temperature measuring device of the present embodiment is different from the first embodiment in that:
the top of the heat shield 3 is closed, and the temperature sensor 1 is positioned below the closed top of the heat shield 3.
The heat shield 3 has a double-layer structure, an outer heat-insulating cavity 33 is formed between the outer peripheral wall 31 and the inner peripheral wall 32, the inner peripheral wall 32 encloses an inner heat-insulating cavity 34, and the temperature sensor 1 is arranged in the inner heat-insulating cavity 34.
In this embodiment, a foot 7 is also supported on the lower part of the vertical section of the support 2, the upper part of the foot 7 having a seat in which the support 2 is snapped, and the top of the foot 7 resting under the annular outer flange at the corresponding position of the support 2.
In this embodiment, according to the above two heat-insulating cavities, the outer heat-insulating cavity 33 is filled with heat-insulating material, so that the temperature of the outside cannot directly affect the temperature sensor 1, and secondly, the thickness from the bottom of the inner heat-insulating cavity 34 to the upper end surface of the heat-insulating cover 3 and the wall thickness between the inner heat-insulating cavity 34 and the outer heat-insulating cavity 33 are both greater than the outermost wall thickness of the heat-insulating cover 3, and the heat-insulating cover 3 and the bottom cover 5 are both made of metal with poor heat-conducting property, so that the temperature sensor 1 can receive the temperature of the bottom of the pot, and the detected temperature has a delay buffering effect relative to the change of the temperature in the pot.
When the temperature measuring device is used, the direct influence of external high-temperature smoke and heat radiation on the temperature sensor 1 is well avoided, the temperature sensor 1 can delay measurement of the temperature of the pan bottom, the probability of misjudgment of the dry burning prevention function is reduced, and the Chinese dry burning prevention function is easier to realize.
Claims (7)
1. Temperature measuring device for gas-cooker, including temperature sensor (1) and support (2) thereof, its characterized in that: a heat shield (3) is arranged on the periphery of the top of the support (2), the temperature sensor (1) is enclosed in the heat shield, and the top of the temperature sensor (1) is lower than the top of the heat shield (3);
a spring (4) is arranged in an outer heat insulation cavity (33) between an outer heat insulation cover (31) and an inner heat insulation cover (32) of the heat insulation cover (3), and the spring (4) enables the outer heat insulation cover (31) to have a trend of always resetting upwards and keeps the top of the outer heat insulation cover (31) higher than the top of the temperature sensor (1);
the spring (4) is sleeved outside the inner heat shield (32), the lower end of the spring (4) is propped against the outer convex rib on the outer peripheral wall (321) corresponding to the inner heat shield (32), and the upper end of the spring (4) is propped against the inner flange on the top of the outer heat shield (31);
the support (2) is of a hollow tubular structure, the temperature sensor (1) is a wired sensor, and a lead (6) of the temperature sensor is arranged in the hollow tube of the support (2) in a penetrating way.
2. The temperature measurement device of claim 1, wherein: the heat shield (3) is provided with at least two layers of peripheral walls, a heat insulation cavity is formed between the two layers of peripheral walls, and the temperature sensor (1) is arranged in the inner peripheral wall.
3. The temperature measuring device of claim 2, wherein: the top of the heat shield (3) is open, the heat shield (3) comprises an outer heat shield (31) and an inner heat shield (32), and a cavity between the outer heat shield (31) and the inner heat shield (32) is an outer heat shield cavity (33); at least the lower part of the temperature sensor (1) is positioned in an inner heat insulation cavity (34) of the inner heat insulation cover (32).
4. A temperature measuring device according to claim 3, wherein: the inner heat-insulating cover (32) is of a double-layer structure, a middle heat-insulating cavity (35) is formed between the outer peripheral wall (321) and the inner peripheral wall (322), and the inner peripheral wall (322) encloses the inner heat-insulating cavity (34).
5. The temperature measurement device of claim 1, wherein: the top of the heat shield (3) is closed, and the temperature sensor (1) is positioned below the closed top of the heat shield (3).
6. The temperature measurement device of claim 5, wherein: the heat shield (3) is of a double-layer structure, an outer heat shield cavity (33) is formed between the outer heat shield (31) and the inner heat shield (32), the inner heat shield (32) encloses an inner heat shield cavity (34), and the temperature sensor (1) is arranged in the inner heat shield cavity (34).
7. The temperature measurement device of claim 1, wherein: the support (2) is L-shaped, and further comprises a support leg (7) supported at the lower part of the vertical section of the support (2), a clamping seat capable of clamping the support (2) is arranged at the upper part of the support leg (7), and the top of the support leg (7) is abutted under the annular outer convex part at the corresponding position of the support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444901.XA CN109974037B (en) | 2017-12-27 | 2017-12-27 | Temperature measuring device for gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711444901.XA CN109974037B (en) | 2017-12-27 | 2017-12-27 | Temperature measuring device for gas stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109974037A CN109974037A (en) | 2019-07-05 |
| CN109974037B true CN109974037B (en) | 2024-01-16 |
Family
ID=67071596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711444901.XA Active CN109974037B (en) | 2017-12-27 | 2017-12-27 | Temperature measuring device for gas stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109974037B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567605A (en) * | 2019-10-22 | 2019-12-13 | 浙江久康电器有限公司 | Dry burning prevention probe of gas stove |
| CN114088220A (en) * | 2021-11-23 | 2022-02-25 | 深圳市特普生科技有限公司 | Flame radiation preventing device of dry burning preventing sensor of gas stove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005351500A (en) * | 2004-06-08 | 2005-12-22 | Rinnai Corp | Pot bottom temperature sensor for cooking stove |
| JP2008215729A (en) * | 2007-03-05 | 2008-09-18 | Rinnai Corp | Pot bottom temperature sensor |
| CN202083971U (en) * | 2011-03-15 | 2011-12-21 | 海尔集团公司 | Intelligent kitchen range and control module thereof |
| JP2012102938A (en) * | 2010-11-10 | 2012-05-31 | Rinnai Corp | Gas cooking stove |
| CN102680128A (en) * | 2011-03-17 | 2012-09-19 | 叶小舟 | Non-contact temperature measurement method and device using same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-12-27 CN CN201711444901.XA patent/CN109974037B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005351500A (en) * | 2004-06-08 | 2005-12-22 | Rinnai Corp | Pot bottom temperature sensor for cooking stove |
| JP2008215729A (en) * | 2007-03-05 | 2008-09-18 | Rinnai Corp | Pot bottom temperature sensor |
| JP2012102938A (en) * | 2010-11-10 | 2012-05-31 | Rinnai Corp | Gas cooking stove |
| CN202083971U (en) * | 2011-03-15 | 2011-12-21 | 海尔集团公司 | Intelligent kitchen range and control module thereof |
| CN102680128A (en) * | 2011-03-17 | 2012-09-19 | 叶小舟 | Non-contact temperature measurement method and device using same |
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| Publication number | Publication date |
|---|---|
| CN109974037A (en) | 2019-07-05 |
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