Dry-burning prevention temperature measuring probe, pot bottom temperature measuring method and burner

Abstract

The application provides a dry burning prevention temperature measuring probe, a pot bottom temperature measuring method and a burner, and belongs to the technical field of burners. The dry burning prevention temperature measuring probe comprises an inner ring assembly and an outer ring assembly. The inner ring assembly comprises an inner ring moving piece and an inner ring temperature measuring piece. The inner ring temperature measuring piece is in heat conduction contact with the inner ring moving piece. The outer ring assembly comprises a plurality of outer ring moving pieces and a plurality of outer ring temperature measuring pieces. A single outer ring moving piece is in heat conduction contact with a plurality of outer ring temperature measuring pieces. The inner ring moving piece and the plurality of outer ring moving pieces are arranged at intervals along the radial direction of the dry burning prevention temperature measuring probe from the inside to the outside. Through the above structure, the dry burning prevention temperature measuring probe can be closely combined with the bottom of the pot, multi-point temperature measurement is realized, the accuracy of temperature measurement of the dry burning prevention temperature measuring probe is improved, and misjudgment is avoided. When the temperature of the bottom of the pot reaches the threshold value of the temperature measuring piece, the gas supply is cut off to prevent the pot from being dry.

Description

Technical Field

[0001] This invention relates to the field of burner technology, and in particular to an anti-dry-burning temperature probe, a pot bottom temperature measurement method, and a burner. Background Technology

[0002] With social development and technological advancements, people are paying increasing attention to cooking safety. During cooking, cookware often burns dry due to negligence. To prevent this, a heating channel is typically installed in the center of the burner cap, with a temperature probe inside to detect the temperature of the pot's bottom. When the pot's bottom temperature exceeds a certain threshold, it is determined that the cookware is about to burn dry, and the gas supply is cut off to stop combustion and prevent the cookware from drying out.

[0003] However, during the use of burners, the existing temperature probes are mostly single-ring with a round flat top, which can easily lead to poor contact with the bottom of the pot, inaccurate temperature judgment, and false flameout. At the same time, the temperature of the side wall of the temperature probe is affected by the heat radiation of the flame and the heat convection of the high-temperature flue gas, which can easily cause the temperature to be too high, leading to false flameout. In addition, since the current temperature probes do not have overheat protection devices, they are prone to thermal fatigue and shortened service life when exposed to high temperature environment for a long time. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing anti-dry-burning temperature measuring probe, which is inaccurate in temperature judgment and prone to misjudgment, and to provide an anti-dry-burning temperature measuring probe, a pot bottom temperature measuring method and a burner.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A dry-burning-proof temperature probe includes an inner ring assembly and an outer ring assembly. The inner ring assembly includes an inner ring moving part and an inner ring temperature measuring part, with the inner ring temperature measuring part in thermally conductive contact with the inner ring moving part. The outer ring assembly includes a plurality of outer ring moving parts and a plurality of outer ring temperature measuring parts, with each outer ring moving part in thermally conductive contact with a plurality of outer ring temperature measuring parts. Along the radial direction of the dry-burning-proof temperature probe, from the inside to the outside, the inner ring moving parts and the plurality of outer ring moving parts are spaced apart.

[0007] In this design, the anti-dry-burning temperature probe is equipped with an inner ring moving component and several outer ring moving components. The multiple rings increase the adaptability and positioning accuracy of the probe to the bottom of the cookware, avoiding the problem of inaccurate contact between a single ring and the bottom of the cookware in traditional designs. The inner and outer ring moving components allow for multi-point temperature measurement of the bottom of the cookware, reducing measurement errors and avoiding the inaccuracy caused by a single measurement point in traditional designs. The inner and outer ring moving components are spaced apart, with air gaps between the inner and adjacent outer ring moving components, as well as between the outer ring moving components themselves. These air gaps provide good insulation, reducing heat transfer between the inner and outer ring moving components. This structural design ensures a tight fit between the anti-dry-burning temperature probe and the bottom of the cookware, enabling multi-point temperature measurement, improving the accuracy of the probe, and preventing misjudgments. When the temperature at the bottom of the cookware reaches the threshold of the sensing component, the gas supply is cut off to prevent the cookware from burning dry.

[0008] Preferably, a plurality of outer ring temperature measuring elements that are in thermal contact with a single outer ring moving element are uniformly arranged along the circumference of the outer ring moving element.

[0009] In this scheme, several outer ring temperature measuring elements are evenly arranged along the circumference of the outer ring moving parts, which realizes the uniform selection of temperature measuring points, which helps to reduce temperature measurement error, improve temperature measurement accuracy, and avoid the problem of large temperature measurement error caused by the concentration of temperature measuring points in a certain area.

[0010] Preferably, each of the outer ring moving parts has an even number of outer ring temperature measuring elements in thermal contact, and the outer ring temperature measuring elements are arranged symmetrically in pairs along the radial direction of the outer ring moving part.

[0011] In this design, an even number of outer ring temperature measuring elements are arranged in pairs radially symmetrically along the outer ring moving parts, which further ensures the rationality of the temperature measuring point distribution. In particular, when the pot is placed at an angle, the radially symmetrically arranged temperature measuring elements can reflect the tilt of the pot through temperature difference, and thus the position of the pot can be adjusted accordingly.

[0012] Preferably, the outer ring temperature measuring elements of adjacent outer ring moving parts are arranged collinearly.

[0013] In this scheme, the outer ring temperature measuring elements of adjacent outer ring moving parts are set collinearly, which can more accurately reflect the temperature change of the bottom of the pot along this line, that is, the straight line where a certain radial direction of the anti-dry burning temperature measuring probe is located, and thus more accurately determine the location of the center of the bottom of the pot.

[0014] Preferably, the anti-dry-burning temperature probe further includes a base;

[0015] The inner ring assembly also includes an inner ring elastic element, with its two ends contacting the inner ring moving element and the base respectively in the vertical direction;

[0016] The outer ring assembly also includes a plurality of outer ring elastic elements, which are arranged one-to-one with a plurality of outer ring movable elements. In the vertical direction, the two ends of the outer ring elastic elements contact the outer ring movable elements and the base respectively.

[0017] In this design, the base serves as a support component for the anti-dry-burning temperature probe, increasing its stability. The inner and outer elastic elements allow for more flexible movement of the inner and outer moving parts. When the cookware applies a downward force to the anti-dry-burning temperature probe, the inner and outer elastic elements apply an upward force to the inner and outer moving parts, respectively, resulting in a tighter fit between the anti-dry-burning temperature probe and the bottom of the cookware, thereby improving the accuracy of temperature measurement.

[0018] Preferably, the inner ring moving member includes an inner ring abutting portion and an inner ring sidewall. The inner ring temperature measuring member is connected to the inner ring abutting portion. The inner ring abutting portion is used to abut against the bottom of the pot. The inner ring sidewall extends downward along the side of the inner ring abutting portion and surrounds the inner ring receiving cavity with the inner ring abutting portion. The inner ring elastic member is at least partially located in the inner ring receiving cavity.

[0019] In this design, the inner ring temperature sensor is connected to the inner ring abutment part, which is used to abut against the bottom of the cookware, so that the measuring point of the inner ring temperature sensor is located at the center of the bottom of the cookware, thus improving the accuracy of the temperature measurement position. The inner ring sidewall has a certain protective and limiting effect on part of the inner ring temperature sensor and part of the elastic element located in the inner ring cavity, and the inner ring sidewall also has a certain heat insulation effect, reducing the influence of external heat on the temperature measurement of the inner ring temperature sensor.

[0020] Preferably, the outer ring moving member includes an outer ring abutment portion, an inner outer ring wall, and an outer outer ring wall. The outer ring abutment portion is annular, and the outer ring temperature measuring element is connected to the outer ring abutment portion. The outer ring abutment portion is used to abut against the bottom of the pot. The inner outer ring wall and the outer outer ring wall extend downward along the inner and outer sides of the outer ring abutment portion, respectively, and together with the outer ring abutment portion, form an outer ring receiving cavity. The outer ring elastic element is at least partially located within the outer ring receiving cavity.

[0021] In this design, the outer ring temperature sensor is connected to the outer ring abutment part, which is used to abut against the bottom of the cookware, making the measuring point of the outer ring temperature sensor closer to the center of the bottom of the cookware, thus improving the accuracy of the temperature measurement position. The outer ring abutment part is annular, which can fit against the bottom of the cookware along its circumference, making the fit between the two more stable and preventing misalignment between the outer ring abutment part and the bottom of the cookware. The inner and outer walls of the outer ring provide a certain degree of protection and limiting effect for the outer ring elastic element.

[0022] Preferably, the lower end of the outermost outer wall of the outermost outer ring moving member of the outer ring assembly is not higher than the lower end of the outer ring elastic member and not higher than the lower end of the inner ring elastic member.

[0023] In this design, the outermost outer ring moving part of the outer ring assembly can completely surround the outer ring elastic element and the inner ring elastic element, reducing the impact of flame thermal radiation and high-temperature flue gas thermal convection on the outer ring elastic element and the inner ring elastic element, thus providing good protection for the outer ring elastic element and the inner ring elastic element.

[0024] Preferably, the lower end of the inner ring sidewall is lower than the lower end of the inner ring temperature-sensing part of the inner ring temperature measuring element and higher than the lower end of the inner ring elastic element. Except for the outer ring outer sidewall of the outermost outer ring moving part of the outer ring assembly, the lower ends of the other outer ring outer sidewalls and the outer ring inner sidewalls are lower than the lower end of the outer ring temperature-sensing part of the outer ring temperature measuring element and higher than the lower end of the outer ring elastic element.

[0025] In this design, the inner and outer elastic elements inside the anti-dry-burning temperature probe will deform under pressure from the bottom of the pot. Since the anti-dry-burning temperature probe is typically designed to be small for easy installation, the deformation space for the inner and outer elastic elements is relatively small. The aforementioned structural design ensures that the inner and outer elastic elements are partially enclosed, thus limiting their movement and reducing the space occupied by the probe. This provides sufficient space for the inner and outer elastic elements to deform under pressure.

[0026] Preferably, the outer ring moving member further includes a limiting part, which is located within the outer ring receiving cavity and connected to the inner sidewall or the outer sidewall of the outer ring. In the vertical direction, the horizontal plane of the upper surface of the limiting part is not higher than the horizontal plane of the lower end of the inner ring temperature-sensing part and not higher than the horizontal plane of the lower end of the outer ring temperature-sensing part. The limiting part divides the outer ring receiving cavity into an upper chamber and a lower chamber. The outer ring elastic member is at least partially located in the lower chamber, and both ends of the outer ring elastic member contact the limiting part and the base respectively.

[0027] In this design, the limiting part serves as both a contact end of the outer ring elastic element and divides the outer ring cavity into an upper chamber and a lower chamber. The upper chamber is an air chamber with good thermal insulation, while the lower chamber provides a certain limiting effect on the outer ring elastic element, preventing it from shifting. Furthermore, since the horizontal plane of the upper surface of the limiting part is neither higher than the horizontal plane of the lower end of the outer ring temperature-sensing part nor higher than the horizontal plane of the lower end of the inner ring temperature-sensing part, the upper chamber can vertically surround both the outer and inner ring temperature-sensing parts. This fully utilizes the thermal insulation effect of the upper chamber as an air chamber, reducing the impact of external flame thermal radiation and high-temperature flue gas thermal convection on the inner and outer ring temperature-sensing parts, thereby improving the accuracy of temperature measurement by the inner and outer ring temperature-sensing elements.

[0028] A method for measuring the temperature of the bottom of a pot using an anti-dry-burning temperature probe, the method being applicable to the aforementioned anti-dry-burning temperature probe, comprising the following steps:

[0029] Along the radial direction of the anti-dry-burning temperature probe, from the outside to the inside, the temperature of each outer ring temperature measuring element and the inner ring temperature measuring element is sequentially determined to be above the threshold. If not, the temperature measurement continues or the temperature of the outer ring temperature measuring element adjacent to it on the outside is determined to be above the threshold. If so, the temperature of the outer ring temperature measuring element adjacent to it on the inside or the inner ring temperature measuring element is determined to be above the threshold, until the temperature of the inner ring temperature measuring element exceeds the threshold, and the gas supply to the burner is cut off.

[0030] In this solution, temperature measurement is performed at multiple points on the bottom of the pot using several outer and inner temperature measuring elements, and the results are judged sequentially. This reduces measurement errors and avoids the inaccuracies caused by single temperature measuring points in traditional solutions. This pot-bottom temperature measurement method improves the accuracy of the anti-dry-burning temperature probe, achieves multi-point temperature measurement to avoid misjudgments, and cuts off the gas supply when the temperature at the bottom of the pot reaches the threshold of the measuring element to prevent the pot from burning dry.

[0031] A burner includes a flame cap with a mounting channel in the middle, and the burner also includes the aforementioned anti-dry-burning temperature probe, which is disposed within the mounting channel.

[0032] In this design, the anti-dry-burning temperature probe is installed in the mounting channel in the middle of the burner cap. When the cookware is placed above the burner, the anti-dry-burning temperature probe can be aligned with the bottom of the cookware, improving the accuracy of the temperature measurement position. The anti-dry-burning temperature probe, through the setting of the inner and outer ring components, ensures a tight fit between the probe and the bottom of the cookware and enables multi-point temperature measurement, thereby improving the accuracy of the temperature measurement and avoiding misjudgment. When the temperature at the bottom of the cookware reaches the threshold of the temperature measuring element, the gas supply to the burner is cut off to prevent the cookware from burning dry.

[0033] Preferably, the top of the anti-dry-burning temperature probe is higher than the top of the burner cap.

[0034] In this solution, when the cookware is placed above the burner, the height of the anti-dry-burning temperature probe is sufficient to allow it to contact the bottom of the cookware and be subjected to pressure from the bottom of the cookware, ensuring that the anti-dry-burning temperature probe is in close contact with the bottom of the cookware.

[0035] The positive and progressive effects of this invention are as follows:

[0036] The anti-dry-burning temperature probe is equipped with an inner ring moving part and several outer ring moving parts. The multiple rings increase the adaptability and positioning accuracy of the probe to the bottom of the cookware, avoiding the defect of a single ring in traditional designs that is prone to poor contact with the bottom of the cookware. The inner ring and several outer ring moving parts can measure the temperature of the bottom of the cookware at multiple points, reducing measurement errors and avoiding the inaccuracy caused by a single measurement point in traditional designs. The inner ring and several outer ring moving parts are spaced apart, with air gaps between the inner ring moving parts and adjacent outer ring moving parts, as well as between the outer ring moving parts. These air gaps have good heat insulation properties, reducing heat transfer between the inner ring and several outer ring moving parts. Through the above structural design, the anti-dry-burning temperature probe can be tightly attached to the bottom of the cookware, realizing multi-point temperature measurement, improving the accuracy of the temperature measurement, avoiding false judgments, and cutting off the gas supply when the temperature of the bottom of the cookware reaches the threshold of the measuring part to prevent the cookware from burning dry. Attached Figure Description

[0037] Figure 1 This is a structural diagram of the anti-dry-burning temperature probe of the present invention.

[0038] Figure 2 This is a front view of the anti-dry-burning temperature probe of the present invention.

[0039] Figure 3 This is a top view of the anti-dry-burning temperature probe of the present invention.

[0040] Figure 4 This is a cross-sectional view of the anti-dry-burning temperature probe of the present invention.

[0041] Figure 5 This is an exploded view of the anti-dry-burning temperature probe of the present invention.

[0042] Figure 6 This is a structural diagram of the burner of the present invention.

[0043] Figure 7 This is a front view of the burner of the present invention.

[0044] Figure 8 This is a top view of the burner of the present invention.

[0045] Explanation of reference numerals in the attached figures:

[0046] Inner ring component 1

[0047] Inner ring moving part 11

[0048] Inner Ring Connection Part 111

[0049] Inner ring sidewall 112

[0050] Inner ring receiving cavity 113

[0051] Inner ring temperature measuring element 12

[0052] Inner ring temperature sensing thermistor 121

[0053] Inner ring elastic element 13

[0054] Outer ring component 2

[0055] Outer ring moving part 21

[0056] Outer Ring Connection Section 211

[0057] Outer ring inner wall 212

[0058] Outer ring outer wall 213

[0059] Outer ring receiving cavity 214

[0060] Upper chamber 2141

[0061] Lower chamber 2142

[0062] Outer ring temperature measuring element 22

[0063] Outer ring temperature measuring thermistor 221

[0064] Outer ring elastic element 23

[0065] Limiting part 24

[0066] Base 3

[0067] Burner 100

[0068] Fire cap 101

[0069] Installation channel 1011

[0070] Anti-dry-burning temperature probe 102 Detailed Implementation

[0071] The present invention will be described more clearly and completely below by way of embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments described herein.

[0072] like Figures 1 to 5 As shown, this embodiment provides an anti-dry-burning temperature probe 102, which includes an inner ring assembly 1 and an outer ring assembly 2. The inner ring assembly 1 includes an inner ring moving part 11 and an inner ring temperature measuring part 12. The inner ring temperature measuring part 12 is in thermal contact with the inner ring moving part 11. The outer ring assembly 2 includes a plurality of outer ring moving parts 21 and a plurality of outer ring temperature measuring parts 22. Each outer ring moving part 21 is in thermal contact with a plurality of outer ring temperature measuring parts 22. Along the radial direction of the anti-dry-burning temperature probe 102, from the inside to the outside, the inner ring moving parts 11 and the plurality of outer ring moving parts 21 are spaced apart. The anti-dry-burning temperature probe 102 is equipped with an inner ring moving part 11 and several outer ring moving parts 21. The arrangement of multiple rings increases the adaptability and positioning accuracy of the anti-dry-burning temperature probe 102 to the bottom of the pot, avoiding the defect of a single ring in traditional solutions that is prone to poor contact with the bottom of the pot. The inner ring temperature measuring part 12 and several outer ring temperature measuring parts 22 can perform multi-point temperature measurement on the bottom of the pot, reducing temperature measurement error and avoiding the defect of a single temperature measuring point in traditional solutions that is prone to inaccurate temperature measurement. The inner ring moving part 11 and several outer ring moving parts 21 are arranged at intervals, that is, there is an air gap between the inner ring moving part 11 and the adjacent outer ring moving part 21, as well as between several outer ring moving parts 21. The air gap has a good heat insulation effect and can reduce heat transfer between the inner ring moving part 11 and several outer ring moving parts 21. The above structural design ensures that the anti-dry-burning temperature probe 102 can fit tightly against the bottom of the pot, enabling multi-point temperature measurement, improving the accuracy of the anti-dry-burning temperature probe 102, avoiding misjudgment, and cutting off the gas supply when the temperature at the bottom of the pot reaches the threshold of the temperature measuring element to prevent the pot from burning dry.

[0073] Specifically, in this embodiment, the outer ring assembly 2 includes two outer ring moving parts 21. The inner ring assembly 1 and the outer ring assembly 2 together divide the anti-dry-burning temperature probe 102 into three movable areas, increasing the vertical freedom of the contact surface between the anti-dry-burning temperature probe 102 and the bottom of the pot, thus adapting to pots of different shapes, especially pointed-bottom pots. In other embodiments, the number and size of the inner ring moving parts 11 and outer ring moving parts 21 can be varied according to the size of the mounting channel 1011 of the burner 100 for installing the anti-dry-burning temperature probe 102 and the shape of the pot, and are not limited to this embodiment.

[0074] In this embodiment, several outer ring temperature measuring elements 22 that are in thermal contact with a single outer ring moving part 21 are uniformly arranged along the circumference of the outer ring moving part 21, which realizes the uniform selection of temperature measuring points, which is beneficial to reduce temperature measurement error, improve temperature measurement accuracy, and avoid the problem of large temperature measurement error caused by the concentration of temperature measuring points in a certain area.

[0075] In this embodiment, an even number of outer ring temperature measuring elements 22 are in thermal contact with a single outer ring moving part 21. The outer ring temperature measuring elements 22 are arranged in pairs symmetrically along the radial direction of the outer ring moving part 21, which further ensures the rationality of the distribution of temperature measuring points. In particular, when the pot is placed at an angle, the radially symmetrically arranged temperature measuring elements can reflect the tilt of the pot through temperature difference, and thus the position of the pot can be adjusted accordingly.

[0076] In this embodiment, the outer ring temperature measuring elements 22 of the adjacent outer ring moving parts 21 are arranged collinearly, which can more accurately reflect the temperature change of the bottom of the pot along this line, that is, the straight line where a certain radial direction of the anti-dry burning temperature measuring probe 102 is located, and thus more accurately determine the location of the center of the bottom of the pot.

[0077] In this embodiment, the anti-dry-burning temperature probe 102 also includes a base 3; the inner ring assembly 1 also includes an inner ring elastic member 13, with both ends of the inner ring elastic member 13 contacting the inner ring moving member 11 and the base 3 respectively in the vertical direction; the outer ring assembly 2 also includes a plurality of outer ring elastic members 23, with the plurality of outer ring elastic members 23 corresponding to the plurality of outer ring moving members 21, with both ends of the outer ring elastic members 23 contacting the outer ring moving member 21 and the base 3 respectively in the vertical direction. The base 3 serves as a support component for the anti-dry-burning temperature probe 102, increasing its stability. The inner ring elastic element 13 and the outer ring elastic element 23 allow for more flexible movement of the inner ring moving element 11 and the outer ring moving element 21. When the cookware applies a downward force to the anti-dry-burning temperature probe 102, the inner ring elastic element 13 and the outer ring elastic element 23 apply an upward force to the inner ring moving element 11 and the outer ring moving element 21, respectively, making the anti-dry-burning temperature probe 102 fit more tightly with the bottom of the cookware, thereby improving the accuracy of temperature measurement.

[0078] In this embodiment, the inner ring moving member 11 includes an inner ring abutment portion 111 and an inner ring sidewall 112. The inner ring temperature measuring member 12 is connected to the inner ring abutment portion 111. The inner ring abutment portion 111 is used to abut against the bottom of the pot, so that the measuring point of the inner ring temperature measuring member 12 is located at the center of the bottom of the pot, which improves the accuracy of the temperature measuring position. The inner ring sidewall 112 extends downward along the side of the inner ring abutment portion 111 and forms an inner ring receiving cavity 113 with the inner ring abutment portion 111. The inner ring elastic member 13 is at least partially located in the inner ring receiving cavity 113. The inner ring sidewall 112 has a certain protective and limiting effect on the part of the inner ring temperature measuring member 12 and the part of the elastic member located in the inner ring receiving cavity 113. The inner ring sidewall 112 also has a certain heat insulation effect, reducing the influence of external heat on the temperature measurement of the inner ring temperature measuring member 12.

[0079] In this embodiment, the outer ring moving part 21 includes an outer ring abutment part 211, an inner outer ring wall 212, and an outer outer ring wall 213. The outer ring abutment part 211 is annular and can fit against the bottom of the pot along its circumference, making the fit between the two more stable and preventing misalignment between the outer ring abutment part 211 and the bottom of the pot. The outer ring temperature measuring element 22 is connected to the outer ring abutment part 211, which abuts against the bottom of the pot, allowing the outer ring temperature measuring element to move. The measuring point 22 is closer to the center of the bottom of the pot, which improves the accuracy of the temperature measurement position. The inner wall 212 and the outer wall 213 of the outer ring extend downward along the inner and outer sides of the outer ring abutment 211, respectively, and form an outer ring receiving cavity 214 with the outer ring abutment 211. The outer ring elastic element 23 is at least partially located in the outer ring receiving cavity 214. The inner wall 212 and the outer wall 213 of the outer ring have a certain protective and limiting effect on the outer ring elastic element 23.

[0080] Specifically, in this embodiment, the outer ring abutment 211 is circular in shape. In other embodiments, the outer ring abutment 211 can be other ring shapes, such as elliptical rings, polygonal rings, etc., and is not limited to circular rings. In addition, the annular outer ring abutment 211 can be integrally formed or spliced ​​together.

[0081] Specifically, in this embodiment, the inner ring temperature measuring element 12 is connected to the lower surface of the inner ring abutment portion 111 by solder joints, and the outer ring temperature measuring element 22 is connected to the lower surface of the outer ring abutment portion 211 by solder joints. In other embodiments, the inner ring temperature measuring element 12 can also be connected to the lower surface of the inner ring abutment portion 111 by adhesive bonding, and the outer ring temperature measuring element 22 can also be connected to the lower surface of the outer ring abutment portion 211 by adhesive bonding.

[0082] In this embodiment, the lower end of the outermost outer ring moving member 21 of the outer ring assembly 2 is not higher than the lower end of the outer ring elastic member 23 and not higher than the lower end of the inner ring elastic member 13. The outermost outer ring moving member 21 of the outer ring assembly 2 can completely surround the outer ring elastic member 23 and the inner ring elastic member 13, reducing the impact of flame thermal radiation and high-temperature flue gas thermal convection on the outer ring elastic member 23 and the inner ring elastic member 13, and providing good protection for the outer ring elastic member 23 and the inner ring elastic member 13.

[0083] In this embodiment, the lower end of the inner ring sidewall 112 is lower than the lower end of the inner ring temperature sensing part 121 of the inner ring temperature measuring element 12 and higher than the lower end of the inner ring elastic element 13. Except for the outer ring outer sidewall 213 of the outermost outer ring moving part 21 of the outer ring assembly 2, the lower ends of the other outer ring outer sidewalls 213 and the outer ring inner sidewalls 212 are all lower than the lower end of the outer ring temperature sensing part 221 of the outer ring temperature measuring element 22 and higher than the lower end of the outer ring elastic element 23. Because the inner ring elastic element 13 and outer ring elastic element 23 inside the anti-dry-burning temperature probe 102 will deform to a certain extent when subjected to pressure from the bottom of the pot, and the anti-dry-burning temperature probe 102 is usually designed to be small in size for easy installation, the deformation space left for the inner ring elastic element 13 and outer ring elastic element 23 is relatively small. Through the above structural design, the inner ring elastic element 13 and outer ring elastic element 23 are partially surrounded, which not only limits the inner ring elastic element 13 and outer ring elastic element 23, but also reduces the occupation of the internal space of the anti-dry-burning temperature probe 102, thereby reserving sufficient space for the inner ring elastic element 13 and outer ring elastic element 23 to deform under pressure.

[0084] In this embodiment, the outer ring moving member 21 further includes a limiting part 24. The limiting part 24 is located inside the outer ring receiving cavity 214 and is connected to the inner side wall 212 or the outer side wall 213 of the outer ring. In the vertical direction, the horizontal plane where the upper surface of the limiting part 24 is located is not higher than the horizontal plane where the lower end of the inner ring temperature measuring thermistor 121 is located and is not higher than the horizontal plane where the lower end of the outer ring temperature measuring thermistor 221 is located. The limiting part 24 divides the outer ring receiving cavity 214 into an upper chamber 2141 and a lower chamber 2142. The outer ring elastic member 23 is at least partially located in the lower chamber 2142. The two ends of the outer ring elastic member 23 contact the limiting part 24 and the base 3, respectively. The limiting part 24 serves as a contact end of the outer ring elastic element 23 and also divides the outer ring receiving cavity 214 into an upper chamber 2141 and a lower chamber 2142. The upper chamber 2141 is an air cavity with good heat insulation, while the lower chamber 2142 provides a certain limiting effect on the outer ring elastic element 23, preventing it from shifting. Furthermore, since the horizontal plane of the upper surface of the limiting part 24 is not higher than the horizontal plane of the lower end of the outer ring temperature-sensing part 221, it effectively prevents the outer ring elastic element 23 from shifting. The upper chamber 2141 is positioned at a surface not higher than the horizontal plane where the lower end of the inner ring temperature measuring thermistor 121 is located, so that the upper chamber 2141 can vertically surround the outer ring temperature measuring thermistor 221 and the inner ring temperature measuring thermistor 121. This fully utilizes the heat insulation function of the upper chamber 2141 as an air cavity, reducing the influence of external flame heat radiation and high-temperature flue gas heat convection on the inner ring temperature measuring thermistor 121 and the outer ring temperature measuring thermistor 221, thereby improving the accuracy of temperature measurement by the inner ring temperature measuring element 12 and the outer ring temperature measuring element 22.

[0085] This embodiment also provides a method for measuring the temperature of the bottom of a pot using an anti-dry-burning temperature probe 102. This method is applicable to the aforementioned anti-dry-burning temperature probe 102 and includes the following steps: Along the radial direction of the anti-dry-burning temperature probe 102, from the outside in, sequentially determine whether the temperature of each outer ring temperature measuring element 22 and inner ring temperature measuring element 12 exceeds a threshold. If not, continue measuring the temperature or determine whether the temperature of the adjacent outer ring temperature measuring element 22 exceeds the threshold. If so, determine whether the temperature of the adjacent inner ring temperature measuring element 22 or inner ring temperature measuring element 12 exceeds the threshold, until the temperature of the inner ring temperature measuring element 12 exceeds the threshold, at which point the gas supply to the burner 100 is cut off. By measuring the temperature ring by ring, that is, by measuring the temperature of the bottom of the pot at multiple points using several outer ring temperature measuring elements 22 and inner ring temperature measuring elements 12, and judging the temperature sequentially, the measurement error can be reduced, avoiding the defect of inaccurate temperature measurement caused by a single temperature measuring point in traditional solutions. The above-mentioned bottom temperature measurement method improves the accuracy of the anti-dry-burning temperature probe 102, realizes multi-point temperature measurement, avoids misjudgment, and cuts off the gas supply when the temperature at the bottom of the pot reaches the threshold of the temperature measuring element to prevent the pot from burning dry.

[0086] Specifically, in this embodiment, the method for measuring the temperature of the pot bottom includes the following steps:

[0087] Step S1: Place the bottom of the pot in contact with the anti-dry-burning temperature probe 102, turn on the stove, and the outer ring temperature measuring element 22 and the inner ring temperature measuring element 12 collect the temperature of the bottom of the pot.

[0088] Step S2: Determine whether the outermost outer ring moving part 21 and the outer ring temperature measuring part 22 exceed their threshold. If not, continue temperature measurement. If yes, proceed to step S3 below.

[0089] Step S3: Determine whether the outer ring temperature measuring element 22 of the outer ring moving element 21 adjacent to the outermost outer ring moving element 21 exceeds its threshold. If not, proceed to step S2. If yes, determine whether the outer ring temperature measuring element 22 of the outer ring moving element 21 adjacent to the inner ring moving element 11 exceeds its threshold. Continue to determine in this way until the following step S4 is reached.

[0090] Step S4: Determine whether the outer ring temperature measuring element 22 of the outer ring moving element 21 adjacent to the inner ring moving element 11 exceeds its threshold. If not, determine whether the outer ring temperature measuring element 22 of the outer ring moving element 21 adjacent to it and far from the inner ring moving element 11 exceeds its threshold. If yes, proceed to the following step S5.

[0091] Step S5: Determine whether the outer ring temperature measuring element 22 of the inner ring moving part 11 exceeds its threshold. If yes, cut off the gas supply to the stove. If no, proceed to step S4 above.

[0092] like Figures 6 to 8 As shown, this embodiment also provides a burner 100, including a flame cap 101. The flame cap 101 has an installation channel 1011 in the middle. The burner 100 also includes the aforementioned anti-dry-burning temperature probe 102, which is disposed within the installation channel 1011. The anti-dry-burning temperature probe 102 is installed within the installation channel 1011 in the middle of the flame cap 101 of the burner 100. When the cookware is placed above the burner 100, the anti-dry-burning temperature probe 102 can be aligned with the bottom of the cookware, improving the accuracy of the temperature measurement position. The anti-dry-burning temperature probe 102, through the inner ring assembly 1 and the outer ring assembly 2, ensures a tight fit between the anti-dry-burning temperature probe 102 and the bottom of the cookware, and achieves multi-point temperature measurement, thereby improving the accuracy of the temperature measurement by the anti-dry-burning temperature probe 102 and avoiding misjudgment. When the temperature at the bottom of the cookware reaches the threshold of the temperature measuring element, the gas supply to the burner 100 is cut off to prevent the cookware from burning dry.

[0093] In this embodiment, the top of the anti-dry-burning temperature probe 102 is higher than the top of the burner cap 101. When the cookware is placed above the burner 100, the height of the anti-dry-burning temperature probe 102 is sufficient to allow it to contact the bottom of the cookware and be subjected to pressure from the bottom of the cookware, ensuring that the anti-dry-burning temperature probe 102 is in close contact with the bottom of the cookware.

[0094] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A dry-burning-proof temperature measuring probe, characterized in that, The anti-dry-burning temperature probe includes an inner ring assembly and an outer ring assembly. The inner ring assembly includes an inner ring moving part and an inner ring temperature measuring part, with the inner ring temperature measuring part in thermally conductive contact with the inner ring moving part. The outer ring assembly includes several outer ring moving parts and several outer ring temperature measuring parts, with each outer ring moving part in thermally conductive contact with several outer ring temperature measuring parts. Along the radial direction of the anti-dry-burning temperature probe, from the inside out, the inner ring moving parts and the several outer ring moving parts are spaced apart. The anti-dry-burning temperature probe also includes a base. The inner ring assembly also includes an inner ring elastic part, with its two ends contacting the inner ring moving part and the base respectively in the vertical direction. The outer ring assembly also includes several outer ring elastic parts, with each outer ring elastic part corresponding to one of the outer ring moving parts. Along the vertical direction, the two ends of each outer ring elastic part contact the inner ring moving part and the base respectively. The outer ring moving component and the base support; the inner ring moving component includes an inner ring abutment portion and an inner ring sidewall, the inner ring temperature measuring component is connected to the inner ring abutment portion, the inner ring abutment portion is used to abut against the bottom of the pot, the inner ring sidewall extends downward along the side of the inner ring abutment portion and surrounds the inner ring receiving cavity with the inner ring abutment portion, and the inner ring elastic component is at least partially located in the inner ring receiving cavity; the outer ring moving component includes an outer ring abutment portion, an outer ring inner sidewall and an outer ring outer sidewall, the outer ring abutment portion is annular, the outer ring temperature measuring component is connected to the outer ring abutment portion, the outer ring abutment portion is used to abut against the bottom of the pot, the outer ring inner sidewall and the outer ring outer sidewall extend downward along the inner and outer sides of the outer ring abutment portion respectively and surround the outer ring receiving cavity with the outer ring abutment portion, and the outer ring elastic component is at least partially located in the outer ring receiving cavity.

2. The anti-dry-burning temperature probe as described in claim 1, characterized in that, A plurality of outer ring temperature measuring elements, which are in thermal contact with a single outer ring moving element, are uniformly arranged along the circumference of the outer ring moving element.

3. The anti-dry-burning temperature probe as described in claim 1, characterized in that, Each of the outer ring moving parts has an even number of outer ring temperature measuring elements in thermal contact, and the outer ring temperature measuring elements are arranged symmetrically in pairs along the radial direction of the outer ring moving part.

4. The anti-dry-burning temperature probe as described in claim 1, characterized in that, The outer ring temperature measuring elements of adjacent outer ring moving parts are arranged collinearly.

5. The anti-dry-burning temperature probe as described in claim 1, characterized in that, The lower end of the outermost outer ring moving member of the outer ring assembly is not higher than the lower end of the outer ring elastic member and not higher than the lower end of the inner ring elastic member.

6. The anti-dry-burning temperature probe as described in claim 5, characterized in that, The lower end of the inner ring sidewall is lower than the lower end of the inner ring temperature sensing part of the inner ring temperature measuring element and higher than the lower end of the inner ring elastic element. Except for the outer ring outer sidewall of the outermost outer ring moving part of the outer ring assembly, the lower ends of the other outer ring outer sidewalls and the outer ring inner sidewalls are lower than the lower end of the outer ring temperature sensing part of the outer ring temperature measuring element and higher than the lower end of the outer ring elastic element.

7. The anti-dry-burning temperature probe as described in claim 6, characterized in that, The outer ring moving member further includes a limiting part, which is located inside the outer ring receiving cavity and connected to the inner side wall or the outer side wall of the outer ring. In the vertical direction, the horizontal plane of the upper surface of the limiting part is not higher than the horizontal plane of the lower end of the inner ring temperature measuring thermistor and not higher than the horizontal plane of the lower end of the outer ring temperature measuring thermistor. The limiting part divides the outer ring receiving cavity into an upper chamber and a lower chamber. The outer ring elastic member is at least partially located in the lower chamber, and both ends of the outer ring elastic member contact the limiting part and the base respectively.

8. A method for measuring the temperature of the bottom of a pot using an anti-dry-burning temperature probe, characterized in that, The method for measuring the temperature of the pot bottom is applicable to the anti-dry-burning temperature probe as described in any one of claims 1-7, and includes the following steps: Along the radial direction of the anti-dry-burning temperature probe, from the outside to the inside, the temperature of each outer ring temperature measuring element and the inner ring temperature measuring element is sequentially determined to be above the threshold. If not, the temperature measurement continues or the temperature of the outer ring temperature measuring element adjacent to it on the outside is determined to be above the threshold. If so, the temperature of the outer ring temperature measuring element adjacent to it on the inside or the inner ring temperature measuring element is determined to be above the threshold, until the temperature of the inner ring temperature measuring element exceeds the threshold, and the gas supply to the burner is cut off.

9. A burner comprising a flame cap, the flame cap having a mounting channel in the center, characterized in that, The burner also includes a dry-burning temperature probe as described in any one of claims 1-7, wherein the dry-burning temperature probe is disposed within the installation channel.

10. The burner as claimed in claim 9, characterized in that, The top of the anti-dry-burning temperature probe is higher than the top of the flame cap.

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