Sensor device, dry burning prevention method and stove burner

Abstract

The invention relates to the technical field of combustors, and discloses a sensor device which comprises a base, a temperature measuring assembly is arranged on the base and comprises a probe, a supporting rod and a sleeve, the sleeve is arranged on the base, the supporting rod is slidably arranged in the sleeve, the probe is movably arranged at the top of the supporting rod, and the probe is used for detecting the temperature of the bottom of a pot. According to the sensor device, the dry burning prevention method and the stove burner, the probe used for detecting the temperature of the bottom of the cookware is movably connected with the supporting rod, after the cookware is placed on a support of a gas stove, the probe can move according to the shape and position of the bottom of the cookware, the attaching degree of the probe and the bottom of the cookware is improved, and the temperature of the cookware is detected. Therefore, the contact area with the bottom of the cookware is increased, the accuracy of temperature measurement is improved, dry burning of the cookware is prevented, and the use safety of the burner is improved.

Description

Technical Field

[0001] This invention relates to the field of burner technology, and more specifically, to a sensor device. Background Technology

[0002] With the continuous development of the social economy and the significant improvement of people's living standards, gas stoves have become one of the indispensable core equipment in modern kitchens. As the core component of gas stoves, the burner enables gas to burn stably and safely.

[0003] During cooking, cookware often burns dry due to user 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 bottom of the pot. When the temperature exceeds a certain threshold, the gas supply is cut off to stop combustion and prevent the pot from burning dry.

[0004] However, during the use of burners, because most existing temperature probes are single with a round flat top and are fixedly mounted on the burner, it is difficult to keep the pot level when placed on the gas stove support, or the bottom of the pot may be uneven, which can easily lead to poor contact with the bottom of the pot, resulting in slow heat transfer, inaccurate temperature judgment, delayed gas shut-off, prolonged dry burning time of the pot, and increased use risks. The fixed temperature probe can only detect one position on the bottom of the pot and cannot measure the temperature of the entire bottom surface of the pot. When the food in the pot sticks to the pot, it can cause the local temperature of the pot to become too high, which can damage the pot.

[0005] Therefore, it is necessary to propose a sensor device to address the problems existing in the prior art. Summary of the Invention

[0006] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0007] To address the aforementioned problems, the present invention provides a sensor device comprising a base, on which a temperature measuring component is mounted. The temperature measuring component includes a probe, a support rod, and a sleeve. The sleeve is mounted on the base, the support rod is slidably mounted inside the sleeve, and the probe is movably mounted on the top of the support rod. The probe is used to detect the temperature of the bottom of the cookware.

[0008] Preferably, a hemispherical groove is formed on the bottom surface of the probe, and a spherical connecting part is provided at the top of the support rod, with the spherical connecting part rotatably disposed within the hemispherical groove; A first spring is connected between the bottom surface of the probe and the circumferential surface of the support rod, and at least three first springs are arranged along the circumferential direction of the support rod.

[0009] Preferably, a second spring is provided inside the sleeve, with the lower end of the second spring connected to the bottom surface of the sleeve and the upper end of the second spring connected to the end face of the support rod inserted into the sleeve.

[0010] Preferably, the temperature measuring assembly also includes a probe sweeping drive unit, which drives the sleeve to rotate along the center line of the base while swinging radially along the base, so that the probe sweeps across the bottom of the pot.

[0011] Preferably, the probe sweeping drive unit includes a turntable rotatably mounted on a base, an elongated hole arranged radially on the turntable, a groove formed on the inner wall of the elongated hole, a slider slidably mounted in the groove, and a horizontally arranged connecting hole on the slider. A sleeve is movably mounted on its outer circumference, and two connecting shafts are symmetrically mounted on the outer circumference of the sleeve. The connecting shafts are rotatably mounted inside the connecting hole.

[0012] Preferably, a first rack and a second rack are provided on the upper end face of the sleeve; A first gear, a second gear, a third gear, a fourth gear, and a fifth gear are rotatably arranged on the top surface of the turntable. The first gear meshes with the third gear, and the third gear meshes with the first rack. The second gear meshes with the fifth gear, the fifth gear meshes with the fourth gear, and the fourth gear meshes with the second rack.

[0013] Preferably, a portion of a gear ring one and a portion of a gear ring two are spaced apart on the top surface of the base. The portion of a gear ring one and the portion of a gear ring two are alternately arranged along the circumference of the base. The height of the upper end face of the portion of a gear ring one is lower than the height of the lower end face of the portion of a gear ring two. The portion of a gear ring one meshes with the first gear, and the portion of a gear ring two meshes with the second gear.

[0014] Preferably, the sleeve is connected to the center ball joint of the upper end face of the base.

[0015] A burner includes a burner cap seat, an inner burner cap, and a sensor device as described in the above technical solution. The inner burner cap is closed on the burner cap seat, and the sensor device is disposed at the center of the burner cap seat and the inner burner cap.

[0016] One method to prevent dry burning: S1: The probe contacts the bottom of the pot on the stove and detects the temperature of the bottom of the pot; S2: The probe transmits the real-time temperature information of the bottom of the pot to the processor; S3: The processor compares the real-time temperature information transmitted by the probe with the temperature threshold value stored in the processor. S4: If the temperature detected by the probe is greater than the temperature threshold, the processor sends an alarm signal to the alarm. S5: The alarm light flashes and the buzzer sounds an alarm.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects: The sensor device, anti-dry-burning method, and stove burner described in this invention have a probe for detecting the temperature of the bottom of the cookware that is movably connected to a support rod. After the cookware is placed on the gas stove bracket, the probe can move according to the shape and position of the bottom of the cookware to improve the fit with the bottom of the cookware, thereby increasing the contact area with the bottom of the cookware, improving the accuracy of temperature measurement, preventing the cookware from dry-burning, and improving the safety of the burner.

[0018] Other advantages, objectives and features of the sensor device described in this invention will be apparent in part from the following description, and in part will be understood by those skilled in the art through study and practice of the invention. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the sensor device disclosed in this invention installed on a stove burner; Figure 2 This is a schematic diagram of the sensor device disclosed in this invention; Figure 3 This is a partial cross-sectional structural schematic diagram of the temperature measuring component disclosed in this invention; Figure 4 This is a schematic diagram of the probe sweeping drive unit disclosed in this invention; Figure 5 This is a cross-sectional structural schematic diagram of the probe sweeping drive unit disclosed in this invention; Figure 6 This is a cross-sectional schematic diagram of the hoop and slider disclosed in this invention mounted on a turntable; Figure 7 This is a schematic diagram of the slider structure disclosed in this invention; Figure 8 This is a schematic diagram of the structure of the cylindrical hoop, the first rack, and the second rack disclosed in this invention; Figure 9 This is a schematic diagram showing the disassembled structure of the sensor device disclosed in this invention.

[0020] The components are as follows: 1. Base, 2. Probe, 3. Support rod, 4. Sleeve, 5. Hemispherical groove, 6. Spherical connecting part, 7. First spring, 8. Second spring, 9. Turntable, 10. Long hole, 11. Slide groove, 12. Slider, 13. Connecting hole, 14. Cylindrical hoop, 15. Connecting shaft, 16. First rack, 17. Second rack, 18. First gear, 19. Second gear, 20. Third gear, 21. Fourth gear, 22. Fifth gear, 23. Partial gear ring one, 24. Partial gear ring two, 100. Flame cap seat, 200. Inner flame cap. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0022] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0023] like Figures 1-9 As shown, the present invention provides a sensor device, including a base 1, on which a temperature measuring component is disposed. The temperature measuring component includes a probe 2, a support rod 3 and a sleeve 4. The sleeve 4 is disposed on the base 1, the support rod 3 is slidably disposed inside the sleeve 4, and the probe 2 is movably disposed on the top of the support rod 3. The probe 2 is used to detect the temperature of the bottom of the pot.

[0024] Furthermore, a hemispherical groove 5 is provided on the bottom surface of the probe 2, and a spherical connecting part 6 is provided on the top of the support rod 3. The spherical connecting part 6 is rotatably disposed in the hemispherical groove 5. A first spring 7 is connected between the bottom surface of the probe 2 and the circumferential surface of the support rod 3, and at least three first springs 7 are arranged along the circumferential direction of the support rod 3.

[0025] Furthermore, a second spring 8 is provided inside the sleeve 4. The lower end of the second spring 8 is connected to the bottom surface of the sleeve 4, and the upper end of the second spring 8 is connected to the end face of the support rod 3 inserted into the sleeve 4.

[0026] Furthermore, the temperature measuring assembly also includes a probe sweeping drive unit. The probe sweeping drive unit drives the sleeve 4 to rotate along the center line of the base 1 while swinging radially along the base 1, so that the probe 2 sweeps across the bottom of the pot.

[0027] Furthermore, the probe sweep drive unit includes a turntable 9 rotatably mounted on the base 1, an elongated hole 10 radially arranged on the turntable 9, a sliding groove 11 oppositely arranged on the inner wall of the elongated hole 10, a slider 12 slidably arranged in the sliding groove 11, and a horizontally arranged connecting hole 13 on the slider 12. A sleeve 14 is movably mounted on the outer circumference of the sleeve 4, and two connecting shafts 15 are symmetrically mounted on the outer circumference of the sleeve 14. The connecting shafts 15 are rotatably mounted in the connecting hole 13.

[0028] Furthermore, a first rack 16 and a second rack 17 are provided on the upper end face of the cylinder hoop 14; A first gear 18, a second gear 19, a third gear 20, a fourth gear 21, and a fifth gear 22 are rotatably arranged on the top surface of the turntable 9. The first gear 18 is meshed with the third gear 20, and the third gear 20 is meshed with the first rack 16. The second gear 19 is meshed with the fifth gear 22, the fifth gear 22 is meshed with the fourth gear 21, and the fourth gear 21 is meshed with the second rack 17.

[0029] Furthermore, a portion of a gear ring 23 and a portion of a gear ring 24 are spaced apart on the top surface of the base 1. The portion of a gear ring 23 and the portion of a gear ring 24 are alternately arranged along the circumference of the base 1. The height of the upper end face of the portion of a gear ring 23 is lower than the height of the lower end face of the portion of a gear ring 24. The portion of a gear ring 23 meshes with the first gear 18, and the portion of a gear ring 24 meshes with the second gear 19.

[0030] Furthermore, the sleeve 4 is connected to the center ball joint of the upper end face of the base 1.

[0031] A burner includes a burner cap seat 100, an inner burner cap 200, and a sensor device as described in the above technical solution. The inner burner cap 200 covers the burner cap seat 100, and the sensor device is disposed at the center of the burner cap seat 100 and the inner burner cap 200.

[0032] One method to prevent dry burning: S1: Probe 2 contacts the bottom of the pot on the stove and detects the temperature of the bottom of the pot; S2: Probe 2 transmits the real-time temperature information of the bottom of the pot to the processor; S3: The processor compares the real-time temperature information transmitted by probe 2 with the temperature threshold value stored in the processor. S4: If the temperature detected by probe 2 is greater than the temperature threshold, the processor sends an alarm signal to the alarm. S5: The alarm light flashes and the buzzer sounds an alarm.

[0033] The working principle of the above technical solution: During use, due to user negligence, the burner may be forgotten to be turned off while attending to other matters or leaving the stove unattended. If the burner continues to burn, the water in the pot will evaporate, causing the food to burn dry, potentially damaging the cookware or even causing a fire. To prevent this, a central through-hole is installed in the center of the burner's burner cap base 100 and inner burner cap 200. A temperature sensing component is installed within this central through-hole. After the cookware is placed on the stove's support, the temperature sensing component contacts the bottom of the cookware and detects its temperature. Once the temperature at the bottom of the cookware reaches a preset threshold, the gas switch is cut off, stopping the burner and preventing the danger of dry burning.

[0034] The sensor device includes a base 1, on which a temperature measuring component is mounted. The temperature measuring component includes a probe 2, a support rod 3, and a sleeve 4. The sleeve 4 is mounted on the base 1, and the support rod 3 is slidably mounted inside the sleeve 4. The probe 2 is movably mounted on the top of the support rod 3. The probe 2 is used to detect the temperature of the bottom of a cookware. The probe is movably mounted so that after the cookware is placed on the stove, the bottom of the cookware contacts the probe 2. A hemispherical groove 5 is formed on the bottom surface of the probe 2. A spherical connecting part 6 is provided on the top of the support rod 3. The spherical connecting part 6 is rotatably mounted inside the hemispherical groove 5. The bottom surface of the probe 2 is in contact with the support rod 3. A first spring 7 is connected between the circumferential surfaces of the support rod 3. At least three first springs 7 are arranged along the circumferential direction of the support rod 3. When the first spring 7 is installed, it has a certain preload, which pulls the probe 2 downward so that the hemispherical groove 5 at the bottom of the probe 2 will not fall off the spherical connecting part 6. When the bottom of the pot contacts the probe 2, the probe 2 can adjust its angle under the pressure of the bottom of the pot according to the angle of the bottom of the flat-bottomed pot or the contact position of the pointed-bottomed pot with the probe 2, so that the temperature measuring surface at the top of the probe 2 maintains a larger contact area with the bottom of the pot, thereby improving the accuracy of temperature measurement.

[0035] A second spring 8 is installed inside the sleeve 4. The lower end of the second spring 8 is connected to the bottom surface of the sleeve 4, and the upper end of the second spring 8 is connected to the end face of the support rod 3 inserted into the sleeve 4. When the pot is placed on the stove, the bottom surface of the pot presses down on the probe 2, and the support rod 3 squeezes the second spring 8 downward. After the second spring 8 is compressed, the elastic force is transmitted upward to the probe 2 through the support rod 3, so that the temperature measuring surface of the probe 2 has a certain pressure with the bottom of the pot, which improves the heat transfer efficiency and thus improves the accuracy of temperature measurement.

[0036] The temperature measuring surface of probe 2 is planar, which has a larger heat transfer area and more accurate temperature measurement compared to a spherical probe. However, probe 2 is smaller in size and can only detect the temperature of a small part of the bottom of the pot. Food inside the pot may be in direct contact with the pot, causing it to stick to the bottom surface and resulting in localized heating. Localized heating may damage the pot, especially since many pots are now made of multi-layered composite materials. Localized heating may cause the composite materials to separate, thus damaging the pot.

[0037] The temperature measuring assembly also includes a probe sweeping drive unit. The probe sweeping drive unit drives the sleeve 4 to rotate along the center line of the base 1 while swinging radially along the base 1, so that the probe 2 sweeps across the bottom of the pot. This allows for overall temperature measurement of the bottom of the pot, preventing local overheating and damage.

[0038] The probe sweep drive unit includes a turntable 9 rotatably mounted on a base 1. An elongated hole 10 is formed on the turntable 9 along the radial direction of the turntable 9. A sliding groove 11 is formed on the inner wall of the elongated hole 10. A slider 12 is slidably mounted in the sliding groove 11. A horizontally formed connecting hole 13 is formed on the slider 12. A sleeve 14 is movably mounted on the outer circumference of the sleeve 4, and two connecting shafts 15 are symmetrically mounted on the outer circumference of the sleeve 14. The connecting shafts 15 are rotatably mounted in the connecting hole 13.

[0039] The sleeve 4 can swing radially along the turntable 9 within the elongated hole. When the sleeve 4 swings, the connecting shaft 15 on the sleeve hoop 14 rotates relative to the slider 12, and the sleeve 4 moves relative to the sleeve hoop 14, causing the sleeve 4 to drive the probe 2 to move radially along the cookware via the support rod 3.

[0040] A first rack 16 and a second rack 17 are provided on the upper end face of the sleeve 14; A first gear 18, a second gear 19, a third gear 20, a fourth gear 21, and a fifth gear 22 are rotatably arranged on the top surface of the turntable 9. The first gear 18 is meshed with the third gear 20, and the third gear 20 is meshed with the first rack 16. The second gear 19 is meshed with the fifth gear 22, the fifth gear 22 is meshed with the fourth gear 21, and the fourth gear 21 is meshed with the second rack 17.

[0041] Partial gear ring 1 23 and partial gear ring 24 are spaced apart on the top surface of the base 1. Partial gear ring 1 23 and partial gear ring 24 are alternately arranged along the circumference of the base 1. The height of the upper end face of partial gear ring 1 23 is lower than the height of the lower end face of partial gear ring 24. Partial gear ring 1 23 is meshed with the first gear 18, and partial gear ring 24 is meshed with the second gear 19.

[0042] A drive assembly is provided on the base 1 to drive the turntable 9 to rotate on the base. The drive assembly can be a micro gear motor. A drive gear is provided on the power output shaft of the micro gear motor, and a drive gear ring is provided at the bottom of the turntable 9. The drive gear ring meshes with the drive gear. When the micro gear motor is turned on, the turntable 9 can rotate relative to the base 1.

[0043] During the rotation of turntable 9, a portion of gear ring 24 and a portion of gear ring 1 23 intermittently drive the second gear 19 and the first gear 18 to rotate, such as... Figure 4As shown, when turntable 9 rotates clockwise (viewed from the top of the turntable, the same applies below), part of the gear ring 24 meshes with the second gear 19. The second gear 19 rotates clockwise, thereby driving the fifth gear 22 to rotate counterclockwise, causing the fourth gear 21 to rotate clockwise. The fourth gear 21 meshes with the second rack, thereby pushing the second rack to move. This pushes the sleeve 4 through the cylindrical clamp 14, thus pushing the sleeve 4 from the center of the turntable to the edge of the turntable 9 within the elongated hole 10. At the same time, the sleeve 4 rotates along with the turntable. After part of the gear ring 24 disengages from the second gear 19, part of the gear ring 23 meshes with the first gear 18. The first gear 18 pushes the first rack 16 to move through the third gear 20, similarly... Figure 4 As shown, the turntable 9 rotates clockwise, driving the first gear 18 to rotate clockwise via a partial gear ring 23, which in turn drives the third gear 20 to rotate counterclockwise. The counterclockwise rotation of the third gear 20 pushes the first rack 16 to move, causing the sleeve 4, which has moved to the edge of the turntable 9, to move from the edge of the turntable 9 towards the center of the turntable 9. After the sleeve 4 moves to the center of the turntable 9, the partial gear ring 23 disengages from the first gear 18, and the next partial gear ring 24 engages with the second gear 19, pushing the sleeve 4 from the center of the turntable 9 along the elongated hole 10 to the edge of the turntable 9 again. This process repeats. The probe 2, which is mounted on the top of the sleeve 4 via the support rod 3, moves radially along the bottom of the pot while rotating with the turntable 9. The probe 2 makes a reciprocating curved motion, which can detect the temperature of most parts of the bottom of the pot, preventing the pot from being damaged by localized overheating.

[0044] The sleeve 4 is connected to the center of the upper end face of the base 1 by a ball joint. The lower end of the sleeve 4 is provided with a ball joint. The center of the upper end face of the base 1 is fixedly provided with a hinge seat. The hinge seat is composed of two parts connected by bolts. After bolt connection, a ball cavity is formed in the middle. The upper hinge seat has a through hole for the sleeve to pass through. The ball joint is rotatably set in the ball cavity of the hinge seat, so that the sleeve 4 can move in multiple directions.

[0045] A burner includes a burner cap seat 100, an inner burner cap 200, and a sensor device as described in any one of claims 1-8, wherein the inner burner cap 200 covers the burner cap seat 100, and the sensor device is disposed at the center of the burner cap seat 100 and the inner burner cap 200.

[0046] The burner cap 100 and the inner burner cap 200 are provided with a central through hole in the middle. The base 1 of the sensor device is detachably installed in the central through hole. The specific setting of the central through hole can be selected as the central through hole described in the temperature measuring device and burner with automatic temperature control disclosed in patent document CN113701157A, which will not be described in detail here.

[0047] One method to prevent dry burning: S1: Probe 2 contacts the bottom of the pot on the stove and detects the temperature of the bottom of the pot; S2: Probe 2 transmits the real-time temperature information of the bottom of the pot to the processor; S3: The processor compares the real-time temperature information transmitted by probe 2 with the temperature threshold value stored in the processor. S4: If the temperature detected by probe 2 is greater than the temperature threshold, the processor sends an alarm signal to the alarm. S5: The alarm light flashes and the buzzer sounds an alarm.

[0048] During normal cooking, as long as there is enough water or liquid in the pot, the temperature of the pot bottom is limited by the boiling point of the liquid (water boils at approximately 100 degrees Celsius under one atmosphere of pressure). When the liquid boils away, the bottom of the pot comes into direct contact with the heat source, and the temperature rises rapidly, far exceeding the boiling point of the liquid. This method detects this temperature surge to determine whether dry burning has occurred, thereby triggering an alarm.

[0049] A processor is installed on base 1, and probe 2 is electrically connected to the processor.

[0050] S1: Probe 2 contacts the bottom of the pot on the stove and detects the temperature of the bottom of the pot; Probe 2 can be a temperature sensor such as a thermocouple or a thermistor, installed in the middle of the burner, and equipped with a spring assembly to ensure good contact between probe 2 and the bottom of the pot.

[0051] S2: Probe 2 transmits the real-time temperature information of the bottom of the pot to the processor; The probe converts temperature into an electrical signal, which is then transmitted to the processor via wires or wirelessly. The processor is mounted on base 1 and has a pre-stored temperature threshold, which can be set to 280°C.

[0052] S3: The processor compares the real-time temperature information transmitted by probe 2 with the temperature threshold value stored in the processor. The processor continuously compares the real-time temperature with the threshold to determine whether the temperature exceeds the threshold.

[0053] S4: If the temperature detected by probe 2 is greater than the temperature threshold, the processor sends an alarm signal to the alarm. When the real-time temperature exceeds the threshold for a certain period of time (e.g., 3-5 seconds, to prevent false alarms due to instantaneous temperature fluctuations), the processor determines that it is in a dry-burning state.

[0054] Once the system is determined to be in a dry-burning state, the processor sends a high-level signal or digital command to the alarm circuit to activate the alarm. S5: The alarm light flashes and the buzzer sounds an alarm. The warning lights can be LED lights, which will attract attention by flashing and at the same time emit a loud, high-frequency sound to remind users to take timely action.

[0055] The anti-dry-burning method utilizes the significant temperature difference between the bottom of the pot before and after dry burning, and achieves a danger warning through real-time monitoring and comparison with a threshold. It is a low-cost and highly feasible proactive safety solution that can effectively prevent fires or safety accidents caused by dry burning of the pot, and is particularly suitable for kitchen appliances such as household gas stoves.

[0056] The beneficial effects of the above technical solution are as follows: The sensor device, anti-dry-burning method, and stove burner described in this invention have a probe for detecting the temperature of the bottom of the cookware that is movably connected to a support rod. After the cookware is placed on the gas stove bracket, the probe can move according to the shape and position of the bottom of the cookware to improve the fit with the bottom of the cookware, thereby increasing the contact area with the bottom of the cookware, improving the accuracy of temperature measurement, preventing the cookware from dry-burning, and improving the safety of the burner.

[0057] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A sensor device, characterized in that, The device includes a base (1), on which a temperature measuring component is installed. The temperature measuring component includes a probe (2), a support rod (3), and a sleeve (4). The sleeve (4) is installed on the base (1), the support rod (3) is slidably installed inside the sleeve (4), and the probe (2) is movably installed on the top of the support rod (3). The probe (2) is used to detect the temperature of the bottom of the pot.

2. The sensor device according to claim 1, characterized in that, A hemispherical groove (5) is opened on the bottom surface of the probe (2), and a spherical connecting part (6) is provided on the top of the support rod (3). The spherical connecting part (6) is rotatably set in the hemispherical groove (5). A first spring (7) is connected between the bottom surface of the probe (2) and the circumferential surface of the support rod (3). At least three first springs (7) are arranged along the circumferential direction of the support rod (3).

3. The sensor device according to claim 1, characterized in that, A second spring (8) is installed inside the sleeve (4). The lower end of the second spring (8) is connected to the bottom surface of the sleeve (4), and the upper end of the second spring (8) is connected to the end face of the support rod (3) inserted into the sleeve (4).

4. The sensor device according to claim 1, characterized in that, The temperature measuring assembly also includes a probe sweep drive unit. The probe sweep drive unit drives the sleeve (4) to rotate along the center line of the base (1) while swinging radially along the base (1), so that the probe (2) sweeps across the bottom of the pot.

5. The sensor device according to claim 4, characterized in that, The probe sweep drive unit includes a turntable (9) rotatably mounted on a base (1), an elongated hole (10) radially arranged on the turntable (9), a sliding groove (11) opposite to the inner wall of the elongated hole (10), a slider (12) slidably arranged in the sliding groove (11), and a horizontally arranged connecting hole (13) on the slider (12). A sleeve (4) is movably mounted on the outer circumference of the sleeve (4), and two connecting shafts (15) are symmetrically mounted on the outer circumference of the sleeve (14). The connecting shafts (15) are rotatably mounted in the connecting hole (13).

6. The sensor device according to claim 5, characterized in that, A first toothed rack (16) and a second toothed rack (17) are provided on the upper end face of the cylindrical hoop (14). A first gear (18), a second gear (19), a third gear (20), a fourth gear (21), and a fifth gear (22) are rotatably arranged on the top surface of the turntable (9). The first gear (18) meshes with the third gear (20), and the third gear (20) meshes with the first rack (16). The second gear (19) is meshed with the fifth gear (22), the fifth gear (22) is meshed with the fourth gear (21), and the fourth gear (21) is meshed with the second rack (17).

7. The sensor device according to claim 6, characterized in that, Partial gear ring one (23) and partial gear ring two (24) are arranged at intervals on the top surface of the base (1). Partial gear ring one (23) and partial gear ring two (24) are arranged alternately along the circumference of the base (1). The height of the upper end face of partial gear ring one (23) is lower than the height of the lower end face of partial gear ring two (24). Partial gear ring one (23) is meshed with the first gear (18), and partial gear ring two (24) is meshed with the second gear (19).

8. The sensor device according to claim 7, characterized in that, The sleeve (4) is connected to the center ball joint of the upper end face of the base (1).

9. A burner, characterized in that, It includes a flame cap base (100), an inner flame cap (200), and a sensor device as described in any one of claims 1-8, wherein the inner flame cap (200) covers the flame cap base (100), and the sensor device is disposed at the center of the flame cap base (100) and the inner flame cap (200).

10. A method for preventing dry burning, characterized in that, S1: The probe (2) contacts the bottom of the pot on the stove and detects the temperature of the bottom of the pot; S2: The probe (2) transmits the real-time temperature information of the bottom of the pot to the processor; S3: The processor compares the real-time temperature information transmitted by the probe (2) with the temperature threshold stored in the processor. S4: If the temperature detected by the probe (2) is greater than the temperature threshold, the processor sends an alarm signal to the alarm. S5: The alarm light flashes and the buzzer sounds an alarm.

Images