CN215597353U - Dry burning prevention temperature sensing probe, dry burning prevention device and stove - Google Patents
Dry burning prevention temperature sensing probe, dry burning prevention device and stove Download PDFInfo
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- CN215597353U CN215597353U CN202122018187.6U CN202122018187U CN215597353U CN 215597353 U CN215597353 U CN 215597353U CN 202122018187 U CN202122018187 U CN 202122018187U CN 215597353 U CN215597353 U CN 215597353U
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Abstract
The utility model discloses an anti-dry-burning temperature-sensing probe, an anti-dry-burning device and a stove, wherein the anti-dry-burning temperature-sensing probe comprises a moving part, an elastic element, a magnetic element, a magneto-resistance element and a temperature measuring element; the elastic element is used for contacting with the moving part and enabling the moving part to be clung to the bottom of the pot through elastic force; wherein, the temperature measuring element is arranged on the top of the moving part; the magnetic resistance element is used for sensing the magnetic field intensity generated by the magnetic element; the moving part is used for changing the magnetic field intensity sensed by the magneto-resistance element through moving. When the moving part is pressed down by the cooker, the magneto-resistance element and the magnetic element generate relative displacement, the magnetic field intensity sensed by the magneto-resistance element is changed to generate different feedback signals, the shape of the cooker bottom is identified according to the different feedback signals, different dry burning prevention protection temperatures are established by combining the measured cooker bottom temperatures based on the shapes of the different cooker bottoms, and the accuracy and timeliness of dry burning prevention control are greatly improved.
Description
Technical Field
The utility model relates to the technical field of temperature sensing probes, in particular to an anti-dry-heating temperature sensing probe, an anti-dry-heating device and a stove.
Background
The cooker is indispensable in a household kitchen, brings great convenience to cooking, but the condition that the cooker is dried to be burnt due to careless use often happens, for example, important calls come suddenly during cooking, mobile phones are played during cooking, the most common people are old people, the memory of the old people is reduced, and the cooker is more easily dried to be burnt, so that potential safety hazards are caused.
The temperature of the bottom of a pot is detected by an anti-dry-burning temperature sensing probe which is generally used for preventing dry burning of a pot in the prior art, and a controller determines whether to control a gas valve to cut off a gas source or not according to the temperature detected by the anti-dry-burning temperature sensing probe so as to prevent safety accidents caused by dry burning of the pot. However, the accuracy of the existing contact temperature measurement is greatly influenced by the shape of the pot, for example, the concave top, the flat bottom, the sharp pot (shallow) and the sharp pot (deep) can cause different pressing distances of the temperature probe, so that the lengths of the temperature probes exposed out of the burner are different, and during combustion, the more the temperature probes are exposed out of the burner, the larger the interference of high-temperature smoke is, and the conditions that the temperature measurement is inaccurate, the false dry combustion protection is caused, or the dry combustion protection is not carried out even when the temperature is too high are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defect that an anti-dry-heating temperature probe in the prior art cannot detect the shape of a pot bottom, and provides an anti-dry-heating temperature sensing probe, an anti-dry-heating device and a stove.
The utility model solves the technical problems through the following technical scheme:
the utility model provides an anti-dry heating temperature-sensing probe, which comprises a moving part, an elastic element, a magnetic element, a magneto-resistance element and a temperature measuring element, wherein the moving part is provided with a first end and a second end;
the elastic element is used for contacting with the moving part and enabling the moving part to be clung to the bottom of the pot through elastic force; wherein, the temperature measuring element is arranged at the top of the moving part;
the magnetic resistance element is used for sensing the magnetic field intensity generated by the magnetic element;
the moving part is used for changing the magnetic field intensity sensed by the magneto-resistance element through moving.
Preferably, the magnetic element is arranged on the moving part, and the magnetic resistance element is fixedly arranged;
or the like, or, alternatively,
the magnetic resistance element is arranged on the moving part, and the magnetic element is fixedly arranged.
Preferably, the dry-heating prevention temperature sensing probe further comprises a fixing part;
the fixed part is used for supporting the moving part through the elastic element;
if the magnetic element is arranged on the moving part, the magnetic resistance element is fixedly arranged on the fixed part;
if the magnetic resistance element is arranged on the moving part, the magnetic element is fixedly arranged on the fixed part.
Preferably, the temperature measuring element comprises a thermistor and a heat collecting plate;
the thermistor is attached to the heat collecting plate;
the heat collecting plate is in contact with the bottom of the pot.
Preferably, the fixed part and the moving part are arranged in a hollow manner;
the fixed part and the moving part are internally provided with leads;
the lead is electrically connected with the thermistor.
Preferably, the dry-heating prevention temperature sensing probe further comprises a protective shell, and the protective shell is fixedly arranged on the outer surface of the moving part;
and/or the presence of a gas in the gas,
the elastic element comprises a spring;
and/or the presence of a gas in the gas,
the magnetic element includes any one of a magnet and an electromagnetic coil.
The utility model also provides an anti-dry heating device, which comprises a controller and the anti-dry heating temperature sensing probe;
the controller is used for receiving a feedback signal output by the magneto-resistance element;
the controller is provided with a plurality of dry burning prevention temperature thresholds, wherein different feedback signals correspond to different dry burning prevention temperature thresholds.
The utility model also provides a cooker which comprises the dry burning prevention device.
Preferably, the cooktop further comprises a burner;
the dry-burning-prevention temperature sensing probe is arranged at the center of the burner.
The positive progress effects of the utility model are as follows: the pot bottom is tightly attached to the moving part through the contact of the elastic element and the moving part and the elastic force, the temperature is measured by the temperature measuring element arranged at the top of the moving part, when the moving part is pressed down by a pot, the magneto-resistor element and the magnetic element are relatively displaced, the magneto-resistor element senses that the magnetic field intensity generated by the magnetic element is also changed to generate different feedback signals, so that the shape of the pot bottom can be identified according to different feedback signals, different dry burning prevention protection temperatures can be formulated according to the shapes of different pot bottoms and the measured pot bottom temperatures, the accuracy and timeliness of dry burning prevention control are greatly improved, the safety of a kitchen is guaranteed, and the use experience of a user is also improved.
Drawings
Fig. 1 is a schematic structural view of an anti-dry heating temperature sensing probe according to embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of an anti-dry heating apparatus according to embodiment 2 of the present invention.
Detailed Description
The utility model is further illustrated by the following examples, which are not intended to limit the scope of the utility model.
Example 1
In the present embodiment, as shown in fig. 1, the dry-heating prevention temperature sensing probe of the present embodiment includes a moving member 1, an elastic element 2, a magnetic element 3, a magnetoresistive element 4, a temperature measuring element, and a fixing member 6.
Specifically, the elastic element 2 contacts with the moving part 1 and enables the moving part 1 to be tightly attached to the bottom of the pot through elastic force, wherein the temperature measuring element is arranged at the top of the moving part 1, the magnetic resistance element 4 is used for sensing the magnetic field intensity generated by the magnetic element 3, the moving part 1 is used for changing the magnetic field intensity sensed by the magnetic resistance element 4 through movement, and the fixing part 6 is used for supporting the moving part 1 through the elastic element 2. The anti-dry-burning temperature-sensing probe can be applied to kitchen scenes, wherein the area where the cooker burner is located is provided with the anti-dry-burning temperature-sensing probe, when a cooker is placed on the cooker burner, the anti-dry-burning temperature-sensing probe can be pressed downwards to move downwards, and the elastic element 2 is pressed downwards by the cooker to generate elastic force so that the moving part 1 can be tightly attached to the bottom of the cooker in any shape, so that the temperature measuring element can directly and accurately measure the temperatures of the bottoms of the cookers in different shapes.
In an alternative embodiment, the magnetic element 3 is arranged on the moving part 1, and the magnetoresistive element 4 is arranged fixedly; alternatively, the magnetoresistive element 4 is arranged on the moving part 1 and the magnetic element 3 is fixedly arranged.
In a particular scenario, i.e. as shown in fig. 1, if the magnetic element 3 is arranged on the moving part 1, the magnetoresistive element 4 is fixedly arranged on the fixed part 6; specifically, as the moving part 1 is pushed down by the pot to move, the magnetic element 3 arranged on the moving part 1 also moves along with the movement of the moving part 1, at this time, the magnetic element 3 and the magneto-resistance element 4 fixed on the fixed part 6 generate relative displacement, namely, the magnetic field intensity sensed by the magneto-resistance element 4 changes along with the movement of the magnetic element 3, so that the magneto-resistance element 4 correspondingly generates different feedback signals according to different moving distances of the moving part 1.
In another particular scenario, if the magnetoresistive element 4 is arranged on the moving part 1, the magnetic element 3 is fixedly arranged on the fixed part 6; specifically, because the moving part 1 is pushed down by the cooker to move, the magnetic resistance element 4 arranged on the moving part 1 also moves along with the movement of the moving part 1, at the moment, the magnetic resistance element 4 and the magnetic element 3 fixed on the fixed part 6 generate relative displacement, namely, the magnetic field intensity sensed by the magnetic resistance element 4 changes along with the movement of the magnetic resistance element 4, so that the magnetic resistance element 4 correspondingly generates different feedback signals according to different moving distances of the moving part 1. For example, the magnetoresistive element 4 outputs a resistance value signal, and the magnetoresistive element 4 outputs a constant value under normal conditions, if the moving part 1 is pushed down by the cooker to move, the magnetoresistive element 4 moves along with the moving part, and the output value of the magnetoresistive element 4 is proportional to the magnitude of the sensed magnetic field strength, i.e. the closer the magnetic element 3 is to the magnetoresistive element 4, the larger the resistance value signal output by the magnetoresistive element 4 is.
Furthermore, the shape of the bottom of the cookware is identified according to different feedback signals, and then different dry burning prevention protection temperatures are formulated based on the combination of the shapes of the bottoms of different cookware and the measured temperature of the bottom of the cookware, namely, the dry burning prevention protection temperatures corresponding to the shapes of the different bottoms of the cookware are adapted to the self, so that the scheme of uniform dry burning prevention control for all cookware is avoided, and the timely effectiveness of the dry burning prevention control is effectively guaranteed.
In an alternative embodiment, the temperature sensing element comprises a thermistor 51 and a heat collection plate 52;
specifically, the thermistor 51 is attached to the heat collecting plate 52, and the heat collecting plate 52 is in direct contact with the bottom of the pot, so that the accuracy of temperature measurement is effectively guaranteed.
In an alternative embodiment, the fixed member 6 and the moving member 1 are hollow, and the fixed member 6 and the moving member 1 are provided with wires inside, and are electrically connected with the thermistor 51 through the wires.
In a preferred embodiment, the dry-heating prevention temperature sensing probe further comprises a protective shell 7, the protective shell 7 is fixedly arranged on the outer surface of the moving part 1, and the influence of high temperature on the moving part and the temperature measuring element can be avoided by arranging the protective shell.
In an embodiment, the elastic element 2 of the present embodiment includes a spring; and/or, the magnetic element 3 of the present embodiment includes any one of a magnet and an electromagnetic coil. The skilled person can choose the application according to the actual situation, in this embodiment, the elastic element 2 is preferably a spring, and the magnetic element 3 is preferably a magnet.
The anti-dry heating temperature sensing probe of the embodiment enables the moving part to be tightly attached to the pot bottom through the contact of the elastic element and the moving part and the elasticity, the temperature measuring element arranged at the top of the moving part is used for measuring the temperature, when the moving part is pressed down by a pot, the magneto resistor element and the magnetic element are relatively displaced, the magneto resistor element senses the magnetic field intensity generated by the magnetic element and also changes to generate different feedback signals, the shape of the pot bottom can be identified according to different feedback signals, different anti-dry heating protection temperatures can be formulated according to the shape of different pot bottoms and the measured pot bottom temperatures, the accuracy and timeliness of anti-dry heating control are greatly improved, the safety of a kitchen is guaranteed, and meanwhile, the use experience of a user is also improved.
Example 2
The present embodiment provides an anti-dry heating device, as shown in fig. 2, the anti-dry heating device of the present embodiment includes a controller 8 and an anti-dry heating temperature sensing probe of embodiment 1;
in an alternative embodiment, the controller 8 is configured to receive a feedback signal output by the magnetoresistive element 4; in this embodiment, the feedback signal is a resistance value signal output by the magnetoresistive element 4.
Specifically, the controller 8 is used for receiving the resistance value signal output by the magneto-resistance element 4 to determine the shape of the bottom of the pot, for example, when the resistance value signal is equal to a first resistance setting threshold value, it is determined that no pot is placed; when the resistance value signal is greater than a first resistance set threshold value and less than a second resistance set threshold value, determining that the pan bottom is concave; when the resistance value signal is greater than a second resistance setting threshold value and less than a third resistance setting threshold value, determining that the pan bottom is flat; and when the resistance value signal is greater than a third resistance setting threshold value, determining that the shape of the pot bottom is a convex bottom, wherein a person skilled in the art can set specific numerical values of the first resistance setting threshold value, the second resistance setting threshold value and the third resistance setting threshold value according to a use scene.
In an alternative embodiment, the controller 8 is provided with a plurality of dry-heating prevention temperature thresholds, wherein different feedback signals correspond to different dry-heating prevention temperature thresholds.
Specifically, the controller 8 sets a plurality of dry-burning prevention temperature thresholds according to different feedback signals, that is, the shape of the bottom of the pot is recognized by different feedback signals, and then the dry-burning prevention protection temperature is set according to the shape, for example, the pot at the concave bottom corresponds to a first dry-burning prevention temperature threshold, the pot at the flat bottom corresponds to a second dry-burning prevention temperature threshold, and the pot at the convex bottom corresponds to a third dry-burning prevention temperature threshold, wherein the first dry-burning prevention temperature threshold, the second dry-burning prevention temperature threshold and the third dry-burning prevention temperature threshold can be set by those skilled in the art by combining the material of the pot and the shape of the bottom of the pot.
In a preferred embodiment, the controller 8 is further capable of generating an anti-dry heating control instruction to execute a fire-off operation when the temperature information of the pan bottom reaches an anti-dry heating threshold value.
The influence of different pot bottom shapes (as the indent, flat bottom, evagination etc.) to the accurate temperature measurement of pan is considered to the anti-dry combustion method device of this embodiment, the pot bottom shape of pan is confirmed to the distance of pushing down through the anti-dry combustion method temperature sensing probe, and then obtain corresponding anti-dry combustion method protection temperature based on different pot bottom shapes, the different anti-dry combustion method protection temperature of the pan of different pot bottom shapes is formulated promptly, avoid leading to the emergence of the condition such as mistake dry combustion method protection because of the temperature measurement is inaccurate, the too high temperature also does not carry out the emergence of dry combustion method protection, improve the control by temperature change accuracy effectively, the accuracy and the promptness of anti-dry combustion method control have been promoted widely, the security in kitchen has been ensured, user's use experience sense has also been promoted simultaneously.
Example 3
The embodiment provides a cooker, and the cooker of the embodiment comprises the dry burning prevention device of the embodiment 2.
In a preferred embodiment, the hob further comprises a burner.
Specifically, the dry-burning prevention temperature sensing probe is arranged in the center of the burner.
The cooking utensils of this embodiment prevent dry combustion method protection temperature through preventing dry combustion method device to the formulation difference of the pan of different pot bottom shapes, avoid because of the inaccurate mistake dry combustion method protection that leads to of temperature measurement, the too high emergence of the condition such as also carrying out dry combustion method protection of temperature, improve the control by temperature change accuracy effectively, promoted the accuracy and the promptness of preventing dry combustion method control widely, ensured the security in kitchen, also promoted user's use simultaneously and experienced the sense.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.
Claims (10)
1. The dry-heating-preventing temperature-sensing probe is characterized by comprising a moving part, an elastic element, a magnetic element, a magneto-resistance element and a temperature measuring element;
the elastic element is used for contacting with the moving part and enabling the moving part to be clung to the bottom of the pot through elastic force; wherein, the temperature measuring element is arranged at the top of the moving part;
the magnetic resistance element is used for sensing the magnetic field intensity generated by the magnetic element;
the moving part is used for changing the magnetic field intensity sensed by the magneto-resistance element through moving.
2. The anti-dry heating temperature sensing probe according to claim 1, wherein the magnetic element is disposed on the moving part, and the magnetoresistive element is fixedly disposed;
or the like, or, alternatively,
the magnetic resistance element is arranged on the moving part, and the magnetic element is fixedly arranged.
3. The dry-heating prevention temperature-sensing probe of claim 2, further comprising a fixing member;
the fixed part is used for supporting the moving part through the elastic element;
if the magnetic element is arranged on the moving part, the magnetic resistance element is fixedly arranged on the fixed part;
if the magnetic resistance element is arranged on the moving part, the magnetic element is fixedly arranged on the fixed part.
4. The dry-heating prevention temperature-sensing probe of claim 3, wherein the temperature measuring element comprises a thermistor and a heat collecting plate;
the thermistor is attached to the heat collecting plate;
the heat collecting plate is in contact with the bottom of the pot.
5. The dry-heating prevention temperature-sensing probe according to claim 4, wherein the fixed member and the moving member are hollow;
the fixed part and the moving part are internally provided with leads;
the lead is electrically connected with the thermistor.
6. The dry-heating prevention temperature-sensing probe according to any one of claims 1 to 5, further comprising a protective case, wherein the protective case is fixedly arranged on the outer surface of the moving part.
7. The dry-heating prevention temperature-sensing probe of claim 1, wherein the elastic element comprises a spring;
and/or the presence of a gas in the gas,
the magnetic element includes any one of a magnet and an electromagnetic coil.
8. An anti-dry heating device, characterized in that the anti-dry heating device comprises a controller and the anti-dry heating temperature sensing probe of any one of claims 1 to 7;
the controller is used for receiving a feedback signal output by the magneto-resistance element;
the controller is provided with a plurality of dry burning prevention temperature thresholds, wherein different feedback signals correspond to different dry burning prevention temperature thresholds.
9. Hob, characterized in that it comprises a dry-burning protection device as claimed in claim 8.
10. The cooktop of claim 9, further comprising a burner;
the dry-burning-prevention temperature sensing probe is arranged at the center of the burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122018187.6U CN215597353U (en) | 2021-08-25 | 2021-08-25 | Dry burning prevention temperature sensing probe, dry burning prevention device and stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122018187.6U CN215597353U (en) | 2021-08-25 | 2021-08-25 | Dry burning prevention temperature sensing probe, dry burning prevention device and stove |
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| Publication Number | Publication Date |
|---|---|
| CN215597353U true CN215597353U (en) | 2022-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122018187.6U Active CN215597353U (en) | 2021-08-25 | 2021-08-25 | Dry burning prevention temperature sensing probe, dry burning prevention device and stove |
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| Country | Link |
|---|---|
| CN (1) | CN215597353U (en) |
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2021
- 2021-08-25 CN CN202122018187.6U patent/CN215597353U/en active Active
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