Dry-burning-resistant detection equipment and kitchen range

Abstract

The utility model relates to dry-burning-resistant detection equipment and a kitchen range, the dry-burning-resistant detection equipment is installed on the kitchen range and used for making contact with cookware placed on the kitchen range, and the dry-burning-resistant detection equipment comprises a shell, a circuit substrate, a plurality of temperature detection modules, a controller and a wire. The top face of the shell is used for making contact with a pot. The circuit substrate is packaged in the shell and is close to the top surface of the shell; the plurality of temperature detection modules and the controller are integrated and distributed on one side, close to the top surface, of the circuit substrate, and the controller is connected with the temperature detection modules; the wire is arranged in the shell and electrically connected with the circuit substrate and the stove. The anti-dry-burning detection equipment can effectively improve the detection reliability and applicability.

Description

Technical Field

[0001] The present application relates to the technical field of stoves, and in particular to an anti-dry-burn detection device and a stove. Background Art

[0002] In today's society, the safety performance of household stoves has received widespread attention. In order to improve the safety performance of stoves, most existing stoves have an anti-dry burning function. The temperature of the bottom of the pot is detected by a temperature sensor and the signal is transmitted to the control system. When the temperature of the bottom of the pot is higher than the set temperature, the system will automatically turn off the fire, thereby playing a role in preventing dry burning.

[0003] However, the existing pot bottom temperature detection device is generally a single-point temperature measurement. When facing different types of pot bottoms, the temperature sensing probe is often unable to fully contact the pot bottom, resulting in poor sensing effect and unable to accurately determine whether the pot bottom is dry-burned.

[0004] Therefore, a more reliable and adaptable anti-dry burning detection device is needed. Utility Model Content

[0005] The technical problem solved by the utility model is to provide an anti-dry-burn detection device and a stove, which can effectively improve the detection reliability and applicability, thereby improving the accuracy of dry-burn judgment.

[0006] The above technical problems are solved by the following technical solutions:

[0007] An anti-dry-burn detection device is installed on a stove and is used to contact a pot placed on the stove. The anti-dry-burn detection device includes:

[0008] a shell, wherein the top surface of the shell is used for contacting the pot;

[0009] A circuit substrate is packaged in the housing and is close to the top surface of the housing;

[0010] A plurality of temperature detection modules and a controller are integrated and distributed on one side of the circuit substrate close to the top surface, and the controller is connected to the temperature detection module;

[0011] The wires are arranged inside the shell and are electrically connected to the circuit substrate and the cooker respectively.

[0012] Compared with the background technology, the anti-dry burning detection device described in the utility model has the following beneficial effects:

[0013] By arranging multiple temperature measurement detection modules on the circuit substrate, it can be ensured that no matter what the shape of the pot bottom is, at least one temperature sensing probe can fully contact the pot bottom, thereby improving the induction effect, so that the temperature of the pot can be monitored more accurately, ensuring that dry burning is discovered in time and corresponding control is carried out, thereby effectively avoiding the occurrence of dry burning.

[0014] In one embodiment, a plurality of temperature detection modules are evenly integrated and distributed on a circuit substrate.

[0015] In this embodiment, when there are various types of pot bottoms, the temperature detection modules evenly distributed at different positions can monitor the temperature changes in different areas in a targeted manner, avoiding the problem of poor sensing effect caused by insufficient contact of the temperature sensing probe. Therefore, the safety and performance stability of the stove can be improved, and dry burning can be effectively avoided.

[0016] In one embodiment, the housing comprises:

[0017] A hollow first cylinder;

[0018] A support platform is welded to one end of the first cylinder to support the circuit substrate, and a through hole is formed in the center of the bottom of the support platform to allow the wire to be electrically connected to the circuit substrate through the through hole;

[0019] The heat-conducting cover plate is arranged on the top of the support platform to contact the pot.

[0020] In this embodiment, a specific structure of the housing is provided to improve the accuracy and sensitivity of temperature detection while having stability, thereby providing a certain guarantee for the performance and reliability of the temperature detection module.

[0021] In one embodiment, the distance between the circuit substrate and the bottom surface of the heat conductive cover plate is less than 1.5 mm.

[0022] In this embodiment, by maintaining a small distance between the circuit substrate and the bottom surface of the heat-conducting cover plate, the performance of the pot bottom temperature detection device can be further improved, and the user's needs for temperature control can be better met.

[0023] In one embodiment, the housing further comprises:

[0024] The hollow second cylinder is arranged outside the first cylinder. One end of the second cylinder is connected to the heat-conducting cover plate, and a heat-insulating gap is formed between the second cylinder and the first cylinder.

[0025] In this embodiment, the second cylinder further reduces the influence of the burner flame radiation, which can ensure that the data obtained by the temperature detection module is more accurate and reliable, is not affected by the external environment, and improves the accuracy of the pot bottom temperature data.

[0026] In one embodiment, the heat-conducting cover plate has a downward flange, and the heat-conducting cover plate is welded to the outer side wall of the support platform and the outer side wall or the top of the second cylinder through the flange.

[0027] In this embodiment, the heat-conducting cover plate, the support platform and the second cylinder are connected by a flange design, which can facilitate the welding of the heat-conducting cover plate and the support platform, and at the same time facilitate the welding of the second cylinder to the heat-conducting cover plate, and at the same time improve the welding strength of the heat-conducting cover plate, the support platform and the second cylinder, increase the stability and reliability of the connection, and improve the overall appearance quality of the product. In addition, it can also improve the heat insulation effect and ensure the accuracy of temperature data.

[0028] In one embodiment, the anti-dry burning detection device further includes:

[0029] A spring is arranged in the first cylinder, and one end of the spring is connected to the bottom of the support platform;

[0030] The support member is at least partially accommodated at the bottom of the first cylinder, and two ends of the support member are respectively fixedly connected to the cooker and the other end of the spring, so as to compress the spring when the cooker is placed on the cooker.

[0031] In this embodiment, through the above-mentioned mechanical structure design, the pushing action of the spring can realize the pushing of the support platform, so that the entire anti-dry burning detection equipment rises, and then the heat-conductive cover plate contacts the bottom of the pot, thereby realizing the temperature detection of the bottom of the pot. The structure is simple and easy to implement.

[0032] In one embodiment, the controller and a plurality of temperature detection modules are connected in parallel.

[0033] In this embodiment, by connecting the controller and multiple temperature detection modules in parallel, the redundancy, fault isolation and safety of the system can be achieved, so that the damage of a single module will not affect the normal operation of other modules, thereby ensuring the stability and reliability of the entire system.

[0034] In one embodiment, the temperature detection module includes:

[0035] A voltage-dividing resistor, the input end of which is used to connect the power supply of the cooker;

[0036] Thermistor, the input end of the thermistor is connected to the output end of the voltage divider resistor;

[0037] The filter circuit has an input end connected to an output end of a voltage-dividing resistor, an output end of the filter circuit connected to a controller, and a thermistor and the filter circuit are connected to a common ground.

[0038] In this embodiment, the voltage-dividing resistor is used for voltage division, the thermistor is used for temperature monitoring, and the filter circuit is used for signal filtering processing. Through the combination of these components, accurate monitoring and stable control of the stove temperature can be achieved, while reducing the impact of noise and interference on the system, thereby ensuring the reliability and stability of the system.

[0039] A stove, comprising:

[0040] Cooker body;

[0041] The anti-dry burning detection device in the above embodiment.

[0042] Compared with the background technology, the stove described in the utility model has the following beneficial effects:

[0043] The anti-dry-burn detection equipment can accurately monitor and stably control the temperature of pots placed on the stove, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 A schematic diagram of the cross-sectional structure of an anti-dry burning detection device in one embodiment;

[0046] Figure 2 A schematic diagram of an application environment of an anti-dry burning detection device in an embodiment;

[0047] Figure 3 A schematic diagram of an application environment of an anti-dry burning detection device in another embodiment;

[0048] Figure 4 A schematic diagram of the distribution of multiple temperature detection modules on a circuit substrate in one embodiment;

[0049] Figure 5 for Figure 1 A partial enlarged schematic diagram of the middle area A;

[0050] Figure 6 for Figure 1 A partial enlarged schematic diagram of the middle area B;

[0051] Figure 7 Schematic diagram of the circuit structure of an anti-dry burning detection device in one embodiment.

[0052] Explanation of the reference numerals: 2-shell, 22-first cylinder, 24-support, 26-heat-conducting cover, 262-flange, 28-second cylinder, 4-circuit substrate, 6-temperature detection module, 8-wire, 10-spring, 12-support, 14-power supply circuit, 300-pointed bottom pot, 500-uneven bottom of pot. DETAILED DESCRIPTION

[0053] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0055] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0056] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0057] It can be understood that “at least one” means one or more, “plurality” means two or more, and “at least a portion of an element” means a part or all of an element.

[0058] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0059] In an exemplary embodiment, Figure 1 As shown, the present application provides an anti-dry-burning detection device, which is installed on a stove and is used to contact a pot placed on the stove. The anti-dry-burning detection device includes a housing 2, a circuit substrate 4, a plurality of temperature detection modules 6, and a controller ( Figure 1The top surface of the housing 2 is used to contact the cooker; the circuit substrate 4 is encapsulated in the housing 2 and close to the top surface of the housing 2; a plurality of temperature detection modules 6 and a controller are integrated and distributed on one side of the circuit substrate 4 close to the top surface, and the controller is connected to the temperature detection module 6; the wire 8 is arranged inside the housing 2, and the wire 8 is electrically connected to the circuit substrate 4 and the cooker respectively.

[0060] Among them, the circuit substrate 4 is a plate-like structure for supporting and connecting electronic components, and may refer to a circuit substrate 4 made of high temperature resistant materials such as aluminum nitride or silicon nitride. The temperature detection module 6 refers to a sensor or device for measuring temperature, which is used to monitor the temperature of the bottom of the contact pot, such as a thermocouple, a thermistor (such as NTC or PTC), an infrared sensor, etc. The controller may refer to a microprocessor, a microcontroller or a similar programmable logic device, which receives and interprets the signal from the temperature detection module 6 and makes decisions accordingly, such as when the temperature is detected to be too high (which may indicate that the pot has been dry-burned), the power supply of the cooker is cut off to prevent damage or fire. The wire 8 is used to connect the circuit substrate 4 and the cooker, and the circuit substrate 4 can be powered by the internal device of the cooker, thereby powering the controller and the temperature detection module 6. Secondly, the control signal of the controller can be transmitted to the cooker through the wire 8 to control the power on and off of the cooker. It should be noted that the top surface of the housing 2 refers to the surface located at the top when the anti-dry burning detection device is in a normal installation state, that is, the surface in contact with the cooker.

[0061] For example, by arranging multiple temperature detection modules 6 on the circuit substrate 4, each temperature detection module 6 is located slightly differently, so that the detection range can be increased to ensure that at least one temperature detection module 6 can fully contact the bottom of the pot, thereby improving the sensing effect. When one module cannot contact the bottom of the pot, other modules can still perform temperature detection and more accurately monitor the temperature of the pot. Figure 2 The pointed bottom pot 300 and Figure 3 As shown in the uneven pot bottom 500, even if the pot bottom types are different, multiple temperature detection modules 6 can be used to solve the problem that the temperature sensing probe cannot fully contact with the pot bottom and thus cause poor sensing effect.

[0062] The above-mentioned anti-dry burning detection device, by arranging multiple temperature measurement detection modules on the circuit substrate, can ensure that no matter what the shape of the bottom of the pot is, at least one temperature sensing probe can fully contact the bottom of the pot, thereby improving the induction effect, so that the temperature of the pot can be monitored more accurately, ensuring that the dry burning situation is discovered in time and corresponding control is carried out, thereby effectively avoiding the occurrence of dry burning.

[0063] In an exemplary embodiment, Figure 4 As shown, a plurality of temperature detection modules 6 are evenly integrated and distributed on the circuit substrate 4 .

[0064] For example, when multiple temperature detection modules 6 are evenly integrated and distributed on the circuit substrate 4, the overall sensing coverage and uniformity can be further increased. Each temperature detection module 6 is distributed at a different position, which can more comprehensively monitor the temperature of the bottom of the pot, ensure that different areas of the entire bottom of the pot are covered, and improve the accuracy and sensitivity of temperature detection.

[0065] In this embodiment, when there are various types of pot bottoms, the temperature detection modules evenly distributed at different positions can monitor the temperature changes in different areas in a targeted manner, avoiding the problem of poor sensing effect caused by insufficient contact of the temperature sensing probe. Therefore, the safety and performance stability of the stove can be improved, and dry burning can be effectively avoided.

[0066] In an exemplary embodiment, Figure 1 and Figure 5 As shown, the housing 2 includes a hollow first cylinder 22, a support 24 and a heat-conducting cover 26. The support 24 is welded to one end of the first cylinder 22 to support the circuit substrate 4, and a through hole is formed in the center of the bottom of the support 24 to allow the wire 8 to be electrically connected to the circuit substrate 4 through the through hole; the heat-conducting cover 26 is arranged on the top of the support 24 to contact the cookware.

[0067] The first cylinder 22 may be a cube or a cylinder; the support platform 24 may be a ring-shaped support platform or a square support platform, which will not be listed here one by one.

[0068] For example, the support 24 is welded to one end of the first cylinder 22 as a component supporting the circuit substrate 4, which can increase the stability and durability of the overall structure, and the through hole can conveniently realize the electrical connection between the wire 8 and the circuit substrate 4. The heat-conducting cover plate 26 is arranged on the top of the support 24, which can be more convenient to contact with the pot, improve the convenience of operation, and directly contact the pot through the heat-conducting cover plate 26, which can effectively conduct the temperature of the bottom of the pot to the temperature detection module 6, making the temperature detection more accurate and sensitive.

[0069] In this embodiment, a specific structure of the housing is provided to improve the accuracy and sensitivity of temperature detection while having stability, thereby providing a certain guarantee for the performance and reliability of the temperature detection module.

[0070] In an exemplary embodiment, the distance between the circuit substrate and the bottom surface of the thermally conductive cover plate is less than 1.5 mm.

[0071] Exemplarily, when the distance between the circuit substrate 4 and the bottom surface of the heat-conductive cover plate 26 is less than 1.5 mm, the distance between the circuit substrate 4 and the bottom surface of the heat-conductive cover plate 26 is very small, which can effectively reduce thermal resistance and increase heat conduction efficiency. At the same time, it reduces heat loss and diffusion, reduces delayed heat transmission, and enables the heat-conductive cover plate 26 to sense the temperature changes of the bottom of the pot faster and more accurately.

[0072] In this embodiment, by keeping the distance between the circuit substrate 4 and the bottom surface of the heat-conducting cover plate 26 small, the performance of the pot bottom temperature detection device can be further improved, and the user's demand for temperature control can be better met.

[0073] In an exemplary embodiment, Figure 1 , Figure 5 and Figure 6 As shown, the housing 2 further includes a hollow second cylinder 28. The second cylinder 28 is disposed outside the first cylinder 22, one end of the second cylinder 28 is connected to the heat-conducting cover plate 26, and a heat-insulating gap is formed between the second cylinder 28 and the first cylinder 22.

[0074] The second cylinder 28 may also be a cube or a cylinder.

[0075] For example, the heat-insulating gap formed between the second cylinder 28 and the first cylinder 22 can effectively reduce the influence of the radiant heat of the burner flame on the temperature detection module 6 and reduce the interference of external heat sources on temperature detection.

[0076] In this embodiment, the second cylinder further reduces the influence of the burner flame radiation, which can ensure that the data obtained by the temperature detection module is more accurate and reliable, is not affected by the external environment, and improves the accuracy of the pot bottom temperature data.

[0077] In an exemplary embodiment, Figure 1 and Figure 5 As shown, the heat-conducting cover plate 26 has a downward flange 262 , and the heat-conducting cover plate 26 is welded to the outer side wall of the support platform 24 and the outer side wall or the top of the second cylinder 28 through the flange 262 .

[0078] Exemplarily, the flange 262 design can increase the connection area between the heat-conducting cover plate 26 and the outer wall of the support platform 24 and the outer wall of the second cylinder 28, improve the welding strength, increase the stability and reliability of the connection, reduce the risk of loosening or falling off of the components, and extend the service life of the product. The flange 262 design can also make the connection between the heat-conducting cover plate 26 and the support platform 24 and the second cylinder 28 more compact and neat, more beautiful, improve the overall appearance quality of the product, and enhance the user's aesthetic feeling. In addition, the flange 262 design can form a certain air insulation layer, reduce the impact of external heat sources on the temperature detection module 6, improve the insulation effect, further reduce the interference of external environmental factors on temperature detection, and ensure the accuracy of temperature data.

[0079] In this embodiment, the heat-conducting cover plate, the support platform and the second cylinder are connected by a flange design, which can facilitate the welding of the heat-conducting cover plate and the support platform, and at the same time facilitate the welding of the second cylinder to the heat-conducting cover plate, and at the same time improve the welding strength of the heat-conducting cover plate, the support platform and the second cylinder, increase the stability and reliability of the connection, and improve the overall appearance quality of the product. In addition, it can also improve the heat insulation effect and ensure the accuracy of temperature data.

[0080] In an exemplary embodiment, Figure 1 , Figure 5 and Figure 6 As shown, the anti-dry-burning detection device further includes a spring 10 and a support member 12. The spring 10 is disposed in the first cylinder 22, and one end of the spring 10 is connected to the bottom of the support platform 24; at least part of the support member 12 is accommodated at the bottom of the first cylinder 22, and both ends of the support member 12 are fixedly connected to the cooker and the other end of the spring 10, respectively, so as to compress the spring 10 when the cooker is placed on the cooker.

[0081] For example, the support member 12 in the anti-dry-burn detection device is fixedly connected to the stove and the spring 10, and the spring 10 is also fixedly connected to the bottom of the support platform 24, and the support member 12 can slide freely in the first cylinder 22, so when the pot is placed on the stove, the spring 10 is in a compressed state under the gravity of the pot, and the anti-dry-burn detection device as a whole is under the reaction force of the spring 10, so that the heat-conducting cover plate 26 contacts the bottom of the pot, thereby realizing the temperature detection of the bottom of the pot through the temperature detection module 6. When the pot leaves the stove, the anti-dry-burn detection device returns to its initial position under the support of the support member 12 and the spring 10.

[0082] In this embodiment, through the above-mentioned mechanical structure design, the pushing action of the spring can realize the pushing of the support platform, so that the entire anti-dry burning detection equipment rises, and then the heat-conductive cover plate contacts the bottom of the pot, thereby realizing the temperature detection of the bottom of the pot. The structure is simple and easy to implement.

[0083] In an exemplary embodiment, Figure 7As shown, the controller MCU and the multiple temperature detection modules 6 are connected in parallel.

[0084] Exemplarily, by connecting multiple temperature detection modules 6 in parallel with the controller MCU, the redundancy of the system can be achieved. Even if one of the modules fails or is damaged, other modules that work normally can continue to monitor and feedback temperature data to ensure the stability and reliability of the system. When one of the temperature detection modules 6 fails, since each temperature detection module 6 is independent of each other, the controller MCU can determine the faulty module by detecting the data of other modules, and isolate its influence, thereby ensuring the normal operation of the entire system. At the same time, connecting multiple temperature detection modules 6 in parallel can improve the safety of the system, for example, when a module is abnormal, other modules that work normally can still detect and respond in time to avoid safety problems caused by abnormal temperature.

[0085] In this embodiment, by connecting the controller and multiple temperature detection modules in parallel, the redundancy, fault isolation and safety of the system can be achieved, so that the damage of a single module will not affect the normal operation of other modules, thereby ensuring the stability and reliability of the entire system.

[0086] In an exemplary embodiment, Figure 7 As shown, the temperature detection module 6 includes a voltage-dividing resistor, a thermistor and a filter circuit. The input end of the voltage-dividing resistor is used to connect to the power supply of the cooker; the input end of the thermistor is connected to the output end of the voltage-dividing resistor; the input end of the filter circuit is connected to the output end of the voltage-dividing resistor, the output end of the filter circuit is connected to the controller, and the thermistor and the filter circuit are connected to a common ground.

[0087] For example, Figure 7 As shown, each temperature detection module 6 includes a voltage-dividing resistor, a thermistor and a filter circuit. For example, taking one of the temperature detection modules 6 as an example, it includes a voltage-dividing resistor R5, a thermistor NTC3 and a filter capacitor composed of a resistor R7 and a capacitor C5. The voltage-dividing resistor divides the input voltage to obtain a lower output voltage, which is provided to the thermistor as its input signal; the thermistor is a temperature-sensitive resistor whose resistance value changes with temperature. The thermistor can be used to monitor the temperature of the stove, thereby realizing the detection of the temperature at different positions of the bottom of the pot; the filter circuit is used to filter the signal output by the voltage-dividing resistor, remove noise and interference, obtain a stable temperature signal, and transmit it to the controller for processing.

[0088] In this embodiment, the voltage-dividing resistor is used for voltage division, the thermistor is used for temperature monitoring, and the filter circuit is used for signal filtering processing. Through the combination of these components, accurate monitoring and stable control of the stove temperature can be achieved, while reducing the impact of noise and interference on the system, thereby ensuring the reliability and stability of the system.

[0089] In an exemplary embodiment, Figure 7 As shown, the anti-dry burning detection device also includes a power supply circuit 14, wherein the specific circuit structure of the power supply circuit 14, and the specific connection relationship between the power supply circuit 14 and the controller and the temperature detection module 6 can be directly obtained by those skilled in the art from Figure 7 The circuit diagram shown is known, and no further description is given here. It should be noted that, if Figure 7 The power supply circuit 14 shown in FIG. 1 is for illustrative purposes only and is not intended to be limiting.

[0090] Exemplarily, the power supply circuit 14 is used to provide a stable power supply for the entire anti-dry burning detection device to ensure the normal operation of each module. The power supply circuit 14 may include components such as a power management circuit and a voltage stabilization circuit, which are used to convert and stabilize the power supply voltage to a suitable operating voltage for each module and provide sufficient current to support the normal operation of each component.

[0091] In this embodiment, a stable power supply is provided to the anti-dry burning detection device through a power supply circuit, the normal operation of each module is ensured, the stable power supply of the system is ensured, and the reliability and stability of the entire system are improved.

[0092] In an exemplary embodiment, the present application further provides a stove, which includes a stove body and the anti-dry-burning detection device in the above embodiment.

[0093] In this embodiment, the anti-dry-burn detection device is used to accurately monitor and stably control the temperature of the pot placed on the stove, thereby improving the user experience.

[0094] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0095] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0096] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A dry burning prevention detection device, characterized in that: The anti-dry-burning detection device is installed on the cooker and is used to contact the pot placed on the cooker. The anti-dry-burning detection device includes: A shell (2), the top surface of the shell (2) being used to contact the cookware; A circuit substrate (4), encapsulated in the housing (2) and close to the top surface of the housing (2); A plurality of temperature detection modules (6) and a controller are integrated and distributed on a side of the circuit substrate (4) close to the top surface, and the controller is connected to the temperature detection module (6); A wire (8) is arranged inside the housing (2), and the wire (8) is electrically connected to the circuit substrate (4) and the stove respectively.

2. The anti-dry burning detection device according to claim 1, characterized in that: The multiple temperature detection modules (6) are evenly integrated and distributed on the circuit substrate (4).

3. The anti-dry burning detection device according to claim 1, characterized in that: The housing (2) comprises: A hollow first cylinder (22); A support platform (24), the support platform (24) being welded to one end of the first cylinder (22) to support the circuit substrate (4), and a through hole is formed in the center of the bottom of the support platform (24) so ​​that the wire (8) can be electrically connected to the circuit substrate (4) through the through hole; A heat-conducting cover plate (26), wherein the heat-conducting cover plate (26) is arranged on the top of the support platform (24) so ​​as to contact the pot.

4. The anti-dry burning detection device according to claim 3, characterized in that: The distance between the circuit substrate (4) and the bottom surface of the heat-conducting cover plate (26) is less than 1.5 mm.

5. The anti-dry burning detection device according to claim 3, characterized in that: The housing (2) further comprises: A hollow second cylinder (28) is arranged outside the first cylinder (22); one end of the second cylinder (28) is connected to the heat-conducting cover plate (26), and a heat-insulating gap is formed between the second cylinder (28) and the first cylinder (22).

6. The anti-dry burning detection device according to claim 5, characterized in that: The heat-conducting cover plate (26) has a downward flange (262), and the heat-conducting cover plate (26) is respectively welded to the outer wall of the support platform (24) and the outer wall or the top of the second cylinder (28) through the flange (262).

7. The anti-dry burning detection device according to claim 3, characterized in that: The anti-dry burning detection device also includes: A spring (10), wherein the spring (10) is disposed in the first cylinder (22), and one end of the spring (10) is connected to the bottom of the support platform (24); A support member (12), wherein at least a portion of the support member (12) is accommodated at the bottom of the first cylinder (22), and two ends of the support member (12) are respectively fixedly connected to the stove and the other end of the spring (10) so as to compress the spring (10) when a pot is placed on the stove.

8. The anti-dry burning detection device according to any one of claims 1 to 6, characterized in that: The controller and the plurality of temperature detection modules (6) are connected in parallel.

9. The anti-dry burning detection device according to claim 8, characterized in that: The temperature detection module (6) comprises: A voltage-dividing resistor, wherein an input end of the voltage-dividing resistor is used to connect to a power source of the cooker; a thermistor, wherein an input end of the thermistor is connected to an output end of the voltage-dividing resistor; A filter circuit, wherein an input end of the filter circuit is connected to an output end of the voltage-dividing resistor, an output end of the filter circuit is connected to the controller, and the thermistor and the filter circuit are connected to a common ground.

10. A cooking appliance, characterized in that: The stove comprises: Cooker body; The anti-dry burning detection device according to any one of claims 1 to 9.

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