Combustor and stove

Abstract

The utility model provides a burner and stove, the burner comprises a fire distribution seat, a fire cover, an injection pipe and a temperature sensing piece used for sensing the temperature of the injection pipe, the fire cover and the fire distribution seat enclose to form a gas mixing cavity, the injection pipe is communicated with the gas mixing cavity, the fire distribution seat is provided with a bottom end face, the temperature sensing piece is provided with a temperature sensing face, and the temperature sensing face is located below the bottom end face. When the cooker is used for heating the cooker, heat at the bottom of the cooker can be transmitted to the injection pipe through the fire cover and the fire distribution seat, so that the temperature of the bottom of the cooker can be detected by sensing the temperature of the injection pipe, the temperature sensing part is not influenced by flames, the accuracy and rapidness of temperature detection are ensured, the temperature sensing part does not interfere with the cooker, and the service life of the cooker is prolonged. And the application range of the cooker is expanded.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the range, specifically, a burner and range. BACKGROUND

[0002] With the use rate of gas range being higher and higher, people's requirement for the safety of gas range is also higher and higher. The existing gas range is usually provided with a temperature sensing probe to detect the temperature of the pot, and whether the burner is dry burning, accidental extinguishing and the like is judged according to the detected temperature, so that when these conditions occur, the gas source can be cut off in the first time to avoid safety hazards.

[0003] At present, most of the gas ranges on the market detect the temperature of the bottom of the pot by contacting the external temperature sensing probe with the bottom of the pot, and when the temperature of the bottom of the pot exceeds the preset temperature, it will automatically extinguish to protect; at the same time, when the range accidentally extinguishes and the pot is not placed for a long time, the gas source can also be cut off in the first time based on the detection result of the external temperature sensing probe to avoid accidents. However, the external temperature sensing probe has certain limitations in use, such as: because the external temperature sensing probe needs to contact the bottom of the pot, in order to avoid interference with the external temperature sensing probe, only flat-bottomed pots can be used for cooking; in addition, the external temperature sensing probe is easily affected by the flame, so that the external temperature sensing probe cannot accurately detect the temperature of the bottom of the pot, causing the range to abnormally determine the extinguishing condition. SUMMARY

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the utility model, a burner is provided, and the technical scheme is as follows.

[0005] The burner comprises a burner base, a burner cover, an injection pipe and a temperature sensing piece for sensing the temperature of the injection pipe, the burner cover and the burner base enclose a gas mixing chamber, the injection pipe is in communication with the gas mixing chamber, the burner base has a bottom end face, and the temperature sensing piece has a temperature sensing face, which is located below the bottom end face.

[0006] The burner of the utility model is provided with a temperature sensing piece for sensing the temperature of the injection pipe, and the temperature sensing piece is located below the bottom end face. When the burner is applied to the range to heat the pot, the heat at the bottom of the pot can be transmitted to the injection pipe through the burner cover and the burner base, so that the temperature of the pot bottom can be detected by sensing the temperature of the injection pipe (i.e. indirectly detecting the temperature of the pot), which not only prevents the temperature sensing piece from being affected by the flame and ensures the accuracy of temperature detection, but also avoids the interference between the temperature sensing piece and the pot, thereby expanding the types of pots placed on the range for use and expanding the application range of the range.

[0007] For example, in a direction perpendicular to the mounting plane of the burner base, there is a distance Z between the bottom surface and the temperature sensing surface, where Z is 1mm to 5mm. Thus, with distance Z within this range, when the burner is used to heat the cookware on the stove, the heat from the bottom of the cookware can be transferred to the injector tube through the burner cap and burner base. Therefore, by sensing the temperature of the injector tube, the temperature of the bottom of the cookware can be detected (i.e., indirectly detecting the cookware temperature). This not only prevents the temperature sensing element from being affected by the flame, ensuring accurate temperature detection, but also avoids interference between the temperature sensing element and the cookware, thereby expanding the types of cookware that can be used on the stove and broadening the applicability of the stove.

[0008] For example, the burner also includes a bracket with a first hole and a sensing mounting position. An ejector tube has a first ejector tube passing through the first hole, and a temperature sensing element is disposed at the sensing mounting position. In this way, not only can the first ejector tube be positioned by the bracket, but the heat from the first ejector tube can also be transferred to the bracket. Since the sensing mounting position is located on the bracket, the temperature of the first ejector tube can be indirectly sensed by sensing the temperature of the bracket, thereby achieving the detection of the pot bottom temperature. This prevents the temperature sensing element from being affected by the flame, ensuring the accuracy of temperature detection, and also avoids interference between the temperature sensing element and the pot, thus expanding the types of pots that can be used on the stove and broadening the applicability of the stove.

[0009] For example, the burner also includes a thermocouple with a second hole on the bracket through which the thermocouple passes. The center of the second hole lies on a first circle with radius R1 centered at the sensing mounting position, and the center of the second hole is at a first distance L1 from the center of the first hole, where R1 > L1. This arrangement not only ensures the normal operation of the thermocouple but also prevents the thermocouple from being too close to the sensing mounting position of the temperature sensing element, thereby preventing the heat generated by the thermocouple from being transferred to the sensing mounting position and affecting the detection results of the temperature sensing element.

[0010] For example, the radius R1 is 30mm to 45mm. With this setting, the radius R1 is within this range, which further avoids the heat generated by the thermocouple being transferred to the sensing mounting position and affecting the detection results of the temperature sensing element.

[0011] For example, the first distance L1 is 15mm to 18mm. With this setting, the first distance L1 is within this range, ensuring the normal operation of the thermocouple, allowing the thermocouple to monitor the temperature of the combustion flame of the first ejector tube in real time, and ensuring the efficient and safe operation of the burner.

[0012] For example, the burner also includes an ignition needle, and the bracket has a third hole through which the ignition needle passes. The center of the third hole is located on a second circle with radius R2 centered at the sensing mounting position, and the center of the third hole is at a second distance L2 from the center of the first hole, where R2 > L2. This configuration not only ensures the normal operation of the ignition needle but also prevents the ignition needle from being too close to the sensing mounting position of the temperature sensor, thus preventing the heat generated by the ignition needle from being transferred to the sensing mounting position and affecting the detection results of the temperature sensor.

[0013] For example, the radius R2 is 30mm to 45mm. With this setting, the radius R2 is within this range, which further prevents the heat generated by the ignition needle from being transferred to the sensing mounting position and affecting the detection results of the temperature sensing element.

[0014] For example, the second distance L2 is 5mm to 11mm. With this setting, the second distance L2 is within this range, ensuring that the ignition needle works normally, so that the ignition needle can accurately ignite the gas and ensure that the burner can start combustion.

[0015] For example, the bracket also has a fourth hole, and the ejector tube has a second ejector tube passing through the fourth hole. The first hole and the fourth hole are spaced apart along the length of the bracket, and the sensing mounting position is located between the first hole and the fourth hole. With this configuration, the temperature sensing element is located between the first ejector tube and the second ejector tube, resulting in better temperature detection of the ejector tube.

[0016] For example, in the width direction of the bracket, the sensing mounting position is at a third distance Y1 from the center of the first hole, where Y1 is 0mm to 10mm. This setting, with the third distance Y1 within this range, effectively ensures the accuracy and speed of temperature detection.

[0017] For example, in the width direction of the bracket, the sensing mounting position has a fourth distance Y2 from the center of the third hole, where Y2 is 0mm to 10mm. With this setting, the fourth distance Y2 is within this range, effectively ensuring the accuracy and speed of temperature detection.

[0018] For example, the bracket has a plate-shaped body, and the sensing mounting position is located on the plate-shaped body. With this configuration, since the temperature of the pot bottom above the burner is transferred to the plate-shaped body through the first and second ejector tubes when the pot is heated, the temperature of the plate-shaped body is correlated with the temperature of the pot bottom, ensuring accurate and rapid temperature detection.

[0019] For example, the temperature-sensing surface and the plate-shaped body form surface contact at the sensing mounting position. With this configuration, since the temperature of the first ejector tube is related to the temperature of the pot bottom, the temperature of the pot bottom can be detected by sensing the temperature of the support through the temperature-sensing element (i.e., indirectly detecting the temperature of the cookware). This not only prevents the temperature-sensing element from being affected by the flame, ensuring the accuracy of temperature detection, but also avoids interference between the temperature-sensing element and the cookware, thereby expanding the types of cookware that can be placed on the stove and broadening the applicability of the stove.

[0020] For example, the plate-shaped body has a surface to be measured, and the temperature-sensing surface is in contact with the surface to be measured. This arrangement ensures that the temperature-sensing surface and the plate-shaped body form surface contact, ensuring that the temperature-sensing element can accurately detect the temperature of the plate-shaped body through the temperature-sensing surface, thereby realizing the detection of the temperature of the bottom of the pot.

[0021] According to another aspect of this utility model, a stove is provided, which includes a bottom shell, a panel, and a burner as described above. The bottom shell forms an installation cavity with an opening, the panel covers the opening, and the panel has a through hole through which the burner passes, with part of the burner located inside the installation cavity and part of the burner located outside the installation cavity. Since the burner described above has the aforementioned beneficial effects, the stove including the burner described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0022] This utility model description introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description 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.

[0023] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0024] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention. In the drawings,

[0025] Figure 1 A perspective view of a stove as an exemplary embodiment of the present invention;

[0026] Figure 2 for Figure 1 A 3D view of the burner in the stove shown;

[0027] Figure 3 for Figure 2 The cross-sectional view of the burner shown;

[0028] Figure 4 for Figure 2A three-dimensional view of the fire distribution socket shown;

[0029] Figure 5 for Figure 2 Top view of part of the burner shown Figure 1 ;

[0030] Figure 6 for Figure 2 Top view of part of the burner shown Figure 2 ;

[0031] Figure 7 for Figure 2 A 3D view of the bracket shown;

[0032] Figure 8 for Figure 7 The bracket shown is viewed from below.

[0033] Figure 9 for Figure 2 A three-dimensional view of the temperature sensing element in the burner shown.

[0034] The above figures include the following reference numerals:

[0035] 1. Stove; 10. Burner; 110. Flame holder; 111. Bottom surface; 112. Air inlet; 113. Connecting part; 120. Burner cap; 130. Injector tube; 131. First injector tube; 132. Second injector tube; 140. Temperature sensing element; 141. Temperature sensing surface; 142. Sheet-shaped part; 143. Lead wire part; 1431. Probe body; 1432. Signal transmission line; 150. Mixing chamber; 160. Bracket; 161. First hole; 162. Second hole; 163. Sensor mounting position; 164. Third hole; 165. Fourth hole; 166. Plate-shaped body; 1661. Surface to be tested; 167. Support foot; 170. Thermocouple; 180. Ignition needle; 20. Bottom shell; 30. Panel. Detailed Implementation

[0036] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0037] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0038] An embodiment of this utility model provides a burner. The burner provided by this utility model can be applied to stoves. The following will describe in detail one embodiment of the burner according to the accompanying drawings.

[0039] See also Figures 1 to 4 The burner 10 may include a burner base 110, a burner cap 120, an injector tube 130, and a temperature sensing element 140 for sensing the temperature of the injector tube 130. It should be noted that this sensing can be direct or indirect. In direct sensing, the temperature sensing element 140 is in contact with the injector tube 130; in indirect sensing, the temperature sensing element 140 is not in contact with the injector tube 130, but directly senses the temperature of the connecting part (such as the bracket 160 mentioned later) that is in contact with the injector tube 130. The burner cap 120 and the burner base 110 can enclose a mixing chamber 150. The injector tube 130 can be connected to the mixing chamber 150. The injector tube 130 can be made of metal to ensure thermal conductivity, airtightness, and high-temperature resistance. The burner base 110 can also be made of metal to ensure heat transfer and high-temperature resistance. The mixing chamber 150 can be used to fully mix air and the fuel gas entering from the injector 130, thereby improving the combustion efficiency of the burner 10. The burner seat 110 may have a bottom surface 111. The temperature sensing element 140 may have a temperature sensing surface 141. The temperature sensing surface 141 may be located below the bottom surface 111.

[0040] The burner 10 of this invention is provided with a temperature sensing element 140 for sensing the temperature of the ejector tube 130. The temperature sensing element 140 is located below the bottom end face 111. When the burner 10 is applied to the stove 1 to heat the pot, the heat from the bottom of the pot can be transferred to the ejector tube 130 through the burner cap 120 and the burner seat 110. Thus, by sensing the temperature of the ejector tube 130, the temperature of the bottom of the pot can be detected (i.e., the temperature of the pot can be indirectly detected). This not only prevents the temperature sensing element 140 from being affected by the flame and ensures the accuracy of temperature detection, but also avoids interference between the temperature sensing element 140 and the pot. This expands the types of pots that can be used on the stove 1 and broadens the applicability of the stove 1.

[0041] Furthermore, the ignition base 110 may have an air inlet 112, through which the mixing chamber 150 and the ejector tube 130 can be connected. A connecting portion 113 may extend from the air inlet 112 away from the mixing chamber 150, and the connecting portion 113 may be sleeved on the ejector tube 130. The connecting portion 113 and the ignition base 110 can be an integral structure, facilitating the manufacturing of the ignition base 110. Alternatively, the connecting portion 113 and the ignition base 110 can be separate structures, for example, connected by snap-fit ​​or adhesive methods, to facilitate cleaning and maintenance of the connecting portion 113. Specifically, the outer wall of the connecting portion 113 may be provided with a groove, into which the wall of the air inlet 112 is inserted, connecting the connecting portion 113 to the ignition base 110. Understandably, the bottom end face 111 may be provided on the connecting portion 113. In this way, the contact area between the ignition seat 110 and the ejector tube 130 is increased by the connecting part 113, which not only improves the heat transfer effect from the ignition seat 110 to the ejector tube 130, but also improves the stability of the connection between the ignition seat 110 and the ejector tube 130.

[0042] In a direction perpendicular to the mounting plane of the burner base 110, there can be a distance Z between the bottom surface 111 and the temperature sensing surface 141. Z can be 1mm to 5mm, for example, Z can be 1mm, 2mm, 3mm, 5mm, etc. Within this distance range, when the burner 10 is used to heat the cookware on the stove 1, the heat from the bottom of the cookware can be transferred to the injector tube 130 through the burner cap 120 and the burner base 110. Therefore, by sensing the temperature of the injector tube 130, the temperature of the bottom of the cookware can be detected (i.e., indirectly detecting the cookware temperature). This not only prevents the temperature sensing element 140 from being affected by the flame, ensuring the accuracy of temperature detection, but also avoids interference between the temperature sensing element 140 and the cookware, thereby expanding the types of cookware that can be used on the stove 1 and broadening the applicability of the stove 1. In one embodiment of this invention, the distance Z is 2mm, which effectively ensures the accuracy of the detection results of the temperature sensing element 140. Understandably, the mounting plane of the burner base 110 can be a horizontal plane.

[0043] See also Figures 1 to 4The burner 10 may also include a bracket 160. The bracket 160 may have a first hole 161 and a sensing mounting position 163. The bracket 160 may be made of a thermally conductive material, such as metal or other materials with good heat transfer properties. The ejector tube 130 may have a first ejector tube 131 passing through the first hole 161. The temperature sensing element 140 may be disposed at the sensing mounting position 163. Understandably, the sensing mounting position 163 is the location where the temperature sensing element 140 is mounted on the bracket 160 and senses the temperature. In this way, not only can the first ejector tube 131 be positioned by the bracket 160, but the heat on the first ejector tube 131 can also be transferred to the bracket 160. Since the sensing mounting position 163 is set on the bracket 160, the temperature of the first ejector tube 131 can be indirectly sensed by sensing the temperature of the bracket 160, thereby realizing the detection of the bottom temperature of the pot. This prevents the temperature sensing element 140 from being affected by the flame, ensures the accuracy of temperature detection, and avoids interference between the temperature sensing element 140 and the pot. This expands the types of pots that can be placed on the stove 1 and broadens the applicability of the stove 1.

[0044] See also Figure 2 , Figure 3 , Figure 5 and Figure 7 The burner 10 may also include a thermocouple 170. A second hole 162 may be provided on the bracket 160. The thermocouple 170 may pass through the second hole 162. The thermocouple 170 may be made of metal. During the use of the burner 10, the inner ring flame will burn the thermocouple 170, causing the thermocouple 170 to transfer heat to the bracket 160. The center of the second hole 162 may be located on a first circle with radius R1 centered at the sensing mounting position 163, and the center of the second hole 162 may have a first distance L1 from the center of the first hole 161, where R1 > L1. That is, the thermocouple 170 is closer to the first ejector tube 131 than the temperature sensing element 140. This not only ensures the normal operation of the thermocouple 170 but also prevents the thermocouple 170 from being too close to the sensing mounting position 163 of the temperature sensing element 140, thereby preventing the heat generated by the thermocouple 170 from being transferred to the sensing mounting position 163 and affecting the detection results of the temperature sensing element 140.

[0045] See also Figure 3 and Figure 5 The radius R1 can be 30mm to 45mm, for example, 30mm, 35mm, 40mm, 45mm, etc. Thus, within this range, the heat generated by the thermocouple 170 is further prevented from being transferred to the sensing mounting position 163 and affecting the detection result of the temperature sensing element 140. In one embodiment of this invention, the radius R1 is 35mm, which effectively ensures the accuracy of the detection result of the temperature sensing element 140.

[0046] See again Figure 3 and Figure 5 The first distance L1 can be 15mm to 18mm, for example, 15mm, 16.9mm, 17.5mm, 18mm, etc. Within this range, the first distance L1 ensures the normal operation of the thermocouple 170, allowing it to monitor the temperature of the combustion flame in the first ejector tube 131 in real time, thus ensuring the efficient and safe operation of the burner 10. In one embodiment of this invention, the first distance L1 is 16.9mm, which effectively ensures the accuracy of the thermocouple 170 in monitoring the temperature of the combustion flame in the first ejector tube 131.

[0047] See also Figure 2 , Figure 3 , Figure 6 and Figure 7 The burner 10 may also include an ignition needle 180. A third hole 164 may be provided on the bracket 160 for the ignition needle 180 to pass through. The bracket 160 supports and positions the ignition needle 180, and facilitates its installation on the bracket 160. The ignition needle 180 may be made of metal or ceramic. During use of the burner 10, the inner ring flame will heat the ignition needle 180, causing it to conduct heat to the bracket 160. The center of the third hole 164 may be located on a second circle with radius R2 centered at the sensing mounting position 163, and the center of the third hole 164 may have a second distance L2 from the center of the first hole 161, where R2 > L2. That is, the ignition needle 180 is closer to the first ejector tube 131 than the temperature sensing element 140. In this way, not only is the normal operation of the ignition needle 180 guaranteed, but the sensing mounting position 163 of the temperature sensing element 140 is also avoided from being too close to the ignition needle 180, thus preventing the heat generated by the ignition needle 180 from being transferred to the sensing mounting position 163 and affecting the detection results of the temperature sensing element 140.

[0048] See also Figure 3 and Figure 6 The radius R2 can be 30mm to 45mm, for example, 30mm, 35mm, 40mm, 45mm, etc. Thus, within this range, the heat generated by the ignition needle 180 is prevented from being transferred to the sensing mounting position 163, thus avoiding interference with the detection results of the temperature sensing element 140. In one embodiment of this invention, the radius R2 is 35mm, which effectively ensures the accuracy of the detection results from the temperature sensing element 140.

[0049] See again Figure 3 and Figure 6The second distance L2 can be 5mm to 11mm, for example, 5mm, 5.7mm, 8mm, 11mm, etc. Within this range, the second distance L2 ensures the normal operation of the ignition needle 180, enabling it to accurately ignite the gas and ensuring the burner 10 can start combustion. In one embodiment of this invention, the second distance L2 is 5.7mm, which effectively ensures the accurate ignition of the gas by the ignition needle 180.

[0050] See also Figures 5 to 8 The support 160 may also have a fourth hole 165. The ejector tube 130 may have a second ejector tube 132 passing through the fourth hole 165. The first hole 161 and the fourth hole 165 may be located along the length of the support 160 (e.g., ...). Figure 8 The second ejector tube 132 is spaced apart in the middle (XX) direction, which facilitates centralized control of the flame by the first ejector tube 131 and helps to expand the combustion range of the second ejector tube 132. The sensing mounting position 163 can be located between the first hole 161 and the fourth hole 165. The temperature of both the first ejector tube 131 and the second ejector tube 132 can be uniformly transmitted to the sensing mounting position 163, and the interference of other components with the detection of the temperature sensing element 140 is effectively avoided. In some embodiments, the first ejector tube 131 can be an inner ring ejector tube. The second ejector tube 132 can be an outer ring ejector tube. In this way, the temperature sensing element 140 is located between the first ejector tube 131 and the second ejector tube 132, and the temperature sensing element 140 has a better effect on the temperature detection of the ejector tube 130.

[0051] See also Figure 3 , Figure 5 , Figure 6 and Figure 8 In the width direction of the bracket 160 (e.g.) Figure 8 In the direction YY, the center of the sensing mounting position 163 and the center of the first hole 161 can have a third distance Y1, which can be 0mm to 10mm, for example, the third distance Y1 can be 0mm, 4mm, 6mm, 10mm, etc. Thus, the third distance Y1 within this range effectively ensures the accuracy and speed of temperature detection. In one embodiment of this utility model, the third distance Y1 is 6mm, which well ensures the accuracy of the detection results of the temperature sensing element 140.

[0052] See again Figure 3 , Figure 5 , Figure 6 and Figure 8In the width direction of the bracket 160, the center of the sensing mounting position 163 and the third hole 164 can have a fourth distance Y2, which is 0mm to 10mm. For example, the fourth distance Y2 can be 0mm, 4mm, 6mm, 10mm, etc. Thus, within this range, the accuracy and speed of temperature detection are effectively guaranteed. In one embodiment of this invention, the fourth distance Y2 is 6mm, which well ensures the accuracy of the detection results of the temperature sensing element 140.

[0053] See again Figure 3 , Figure 5 , Figure 6 and Figure 8 Along the length of the bracket 160, the center of the sensing mounting position 163 and the first hole 161 can have a fifth distance X1. The center of the sensing mounting position 163 and the fourth hole 165 can have a sixth distance X2, where 0.5X2≤X1≤X2. For example, the relationship between the fifth distance X1 and the sixth distance X2 can be 0.5X2=X1, 0.8X2=X1, X2=X1, etc. When the fifth distance X1 and the sixth distance X2 have this relationship, the accuracy and speed of temperature detection are effectively guaranteed. In one embodiment of this utility model, 0.8X2=X1, which well guarantees the accuracy and speed of temperature detection.

[0054] See also Figure 2 , Figure 3 and Figure 8 The bracket 160 may have a plate-shaped body 166, and the sensing mounting position 163 may be located on the plate-shaped body 166. Thus, when the pot is heated, the temperature of the pot bottom above the burner 10 is transferred to the plate-shaped body 166 through the first ejector tube 131 and the second ejector tube 132, thereby correlating the temperature of the plate-shaped body 166 with the temperature of the pot bottom, ensuring the accuracy and speed of temperature detection. Furthermore, the bracket 160 may also have a support leg 167, which can be used to support the plate-shaped body 166, thereby ensuring that the ejector tube 130, temperature sensing element 140, thermocouple 170, and ignition needle 180 can be positioned through the bracket 160.

[0055] See also Figure 2 , Figure 3 and Figure 8The temperature-sensing surface 141 and the plate-shaped body 166 can form surface contact at the sensing mounting position 163. In this way, since the temperature of the first ejector tube 131 is related to the temperature of the bottom of the pot, the temperature of the bottom of the pot can be detected by sensing the temperature of the bracket 160 through the temperature-sensing element 140 (i.e., indirect detection of the pot temperature). This not only prevents the temperature-sensing element 140 from being affected by the flame and ensures the accuracy of temperature detection, but also avoids interference between the temperature-sensing element 140 and the pot, thereby expanding the types of pots that can be placed on the stove 1 and broadening the applicability of the stove 1.

[0056] See also Figure 2 , Figure 3 and Figure 7 The plate-shaped body 166 may have a test surface 1661, and the temperature sensing surface 141 may be in contact with the test surface 1661. In this way, the temperature sensing surface 141 and the plate-shaped body 166 are in surface contact, ensuring that the temperature sensing element 140 can accurately detect the temperature of the plate-shaped body 166 through the temperature sensing surface 141, thereby realizing the detection of the bottom temperature of the pot.

[0057] For example, the temperature sensor 140 can be located above or below the bracket 160, as long as the temperature sensor 140 can accurately detect the temperature of the bracket 160. Depending on the size of the mounting cavity of the stove 1, the temperature sensor 140 can be set in a suitable position, thus expanding the applicability of the stove 1.

[0058] For example, the temperature sensing element 140 can be connected to the bracket 160 via fasteners to ensure that the temperature sensing surface 141 is in close contact with the surface to be measured 1661. This ensures the stability of the connection between the temperature sensing element 140 and the bracket 160 and guarantees good surface contact. The fasteners can be screws, bolts, etc. In embodiments not shown, the temperature sensing element 140 can also be connected to the bracket 160 by other means, such as welding, riveting, gluing, or snap-fit ​​connection.

[0059] For example, in conjunction with reference Figures 1 to 9When the burner 10 is applied to the stove 1, the temperature sensing element 140 can be a temperature sensor. The temperature sensing element 140 can have a sheet-like portion 142 and a lead portion 143. The sheet-like portion 142 can be made of a thermally conductive material, such as metal or other materials with good thermal conductivity. The sensing surface 141 can be located on the sheet-like portion 142 to ensure that the temperature sensing element 140 can accurately detect the temperature of the bracket 160 through the sensing surface 141. The lead portion 143 can include a probe body 1431 connected to the sheet-like portion 142. The probe body 1431 can contain a negative temperature coefficient thermistor, etc., which is not limited here, as long as it can convert temperature information into other output or judgment signals. In this way, the temperature sensor 140 can monitor the temperature in real time and compare it with the preset temperature threshold. If the temperature of the bottom of the pot is higher than the preset temperature threshold, it is determined that dry burning has occurred; or it can collect temperature information for a period of time, calculate the temperature change rate during that period, and automatically select the threshold for activating the anti-dry burning function based on the temperature change rate. Finally, if the temperature change of the bottom of the pot is higher than the threshold, it is determined that dry burning has occurred, and then the gas supply is cut off to prevent combustion.

[0060] The following explanation uses a negative temperature coefficient thermistor as an example. Under normal heating conditions, the temperature change rate of a negative temperature coefficient thermistor is relatively stable. However, when the cookware is dry-burned, the temperature of the cookware will rise rapidly due to insufficient medium to absorb heat, and the temperature of the support 160 will also rise rapidly, causing the temperature change rate of the negative temperature coefficient thermistor to increase sharply.

[0061] Negative temperature coefficient (NTC) thermistors exhibit a temperature-resistance characteristic curve. When the temperature of an NTC thermistor increases, the slope of its temperature-resistance characteristic curve increases, indicating that the NTC thermistor is under continuous heating, and thus confirming that the cookware is in a dry-heating state. NTC thermistors respond quickly to temperature changes and have high sensitivity, providing accurate temperature measurements. Furthermore, NTC thermistors have a simple structure, low cost, low failure rate, and good long-term stability. Their high heat transfer efficiency allows for a sensitive response to temperature changes, and their simple structure and low operating cost effectively reduce the failure rate and operating costs of cookware 1, thereby improving its reliability.

[0062] In some embodiments, the probe body 1431 may contain a thermally conductive medium. This allows the temperature of the support 160 to be transferred to the negative temperature coefficient thermistor more effectively and accurately, thereby further improving the accuracy and speed of temperature detection. Specifically, the thermally conductive medium can be a thermally conductive resin. Thermally conductive resin not only has high thermal conductivity but also stability. Filling the probe body 1431 with thermally conductive resin can effectively improve the accuracy and speed of temperature detection. Of course, the thermally conductive medium can also be other materials.

[0063] Furthermore, the lead portion 143 may also include a signal transmission line 1432 connected to the end of the probe body 1431 away from the sheet portion 142. This not only facilitates the conversion of the temperature information collected by the sheet portion 142 into an output signal for transmission, but also prevents the signal transmission line 1432 from being affected by high temperatures, as it is relatively far from the sheet portion 142. Specifically, the signal transmission line 1432 may be covered with a protective sleeve. The protective sleeve further prevents high temperatures from affecting the signal transmission line 1432 and also avoids the problem of the signal transmission line 1432 being easily damaged when exposed.

[0064] In an embodiment not shown, the end of the signal transmission line 1432 furthest from the probe body 1431 can be connected to a controller. The temperature information collected by the temperature sensing element 140 by the plate-shaped portion 142 is converted into a signal by a negative temperature coefficient thermistor and transmitted to the controller via the signal transmission line 1432. The controller can control the working state of the stove 1 based on this signal. When the controller determines, based on this signal, that the stove 1 is in a situation such as dry burning of the pot, accidental flameout, or prolonged high flame without placing the pot on it, it can immediately cut off the gas supply, causing the stove 1 to shut off and avoiding safety hazards.

[0065] According to another aspect of this utility model, a stove 1 is provided. (See also...) Figures 1 to 4 The cooktop 1 includes a bottom shell 20, a panel 30, and a burner 10 as described above. The bottom shell 20 can form a mounting cavity with an opening. The panel 30 can cover the opening. The panel 30 can have a through hole. The burner 10 can pass through the through hole, and part of the burner 10 can be located inside the mounting cavity, and part of the burner 10 can be located outside the mounting cavity. Understandably, the temperature sensing element 140 can be located inside the mounting cavity, and the burner base 110 can be located outside the mounting cavity, ensuring that the burner base 110 can fully mix the gas and air, and that the flame can burn completely, so that the flame can heat the cookware, and avoiding interference between the temperature sensing element 140 and the bottom of the cookware. Since the burner 10 described above has the above-mentioned beneficial effects, the cooktop 1 including the burner 10 described above also has the above-mentioned beneficial effects, which will not be repeated here.

[0066] In the description of this utility model, it should be understood that the directional terms such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0067] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0068] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0069] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0070] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A burner, characterized in that, It includes a flame base, a flame cap, an ejector tube, and a temperature sensing element for sensing the temperature of the ejector tube. The flame cap and the flame base enclose a gas mixing chamber. The ejector tube is connected to the gas mixing chamber. The flame base has a bottom end face, and the temperature sensing element has a temperature sensing surface located below the bottom end face.

2. The burner according to claim 1, characterized in that, In a direction perpendicular to the mounting plane of the fire distribution seat, there is a distance Z between the bottom end surface and the temperature sensing surface, where Z is 1mm to 5mm.

3. The burner according to claim 1 or 2, characterized in that, The burner also includes a bracket with a first hole and a sensing mounting position, the ejector tube having a first ejector tube passing through the first hole, and the temperature sensing element being disposed at the sensing mounting position.

4. The burner according to claim 3, characterized in that, The burner also includes a thermocouple. The bracket has a second hole through which the thermocouple passes. The center of the second hole is located on a first circle with radius R1 centered at the sensing installation position. The center of the second hole and the center of the first hole have a first distance L1, where R1>L1.

5. The burner according to claim 4, characterized in that, The radius R1 is 30mm to 45mm.

6. The burner according to claim 4, characterized in that, The first distance L1 is 15mm to 18mm.

7. The burner according to claim 3, characterized in that, The burner also includes an ignition needle, and the bracket has a third hole through which the ignition needle passes. The center of the third hole is located on a second circle with radius R2 centered at the sensing installation position, and the center of the third hole is at a second distance L2 from the center of the first hole, where R2>L2.

8. The burner according to claim 7, characterized in that, The radius R2 is 30mm to 45mm.

9. The burner according to claim 7, characterized in that, The second distance L2 is 5mm to 11mm.

10. The burner according to claim 3, characterized in that, The bracket also has a fourth hole, and the ejector tube has a second ejector tube passing through the fourth hole. The first hole and the fourth hole are spaced apart in the length direction of the bracket, and the sensing installation position is located between the first hole and the fourth hole.

11. The burner according to claim 3, characterized in that, In the width direction of the bracket, the sensing mounting position is at a third distance Y1 from the center of the first hole, where Y1 is 0mm to 10mm.

12. The burner according to claim 7, characterized in that, In the width direction of the bracket, the sensing mounting position is at a fourth distance Y2 from the center of the third hole, where Y2 is 0mm to 10mm.

13. The burner according to claim 3, characterized in that, The bracket has a plate-shaped body, and the sensing mounting position is located on the plate-shaped body.

14. The burner according to claim 13, characterized in that, The temperature-sensing surface and the plate-shaped body form surface contact at the sensing installation position.

15. The burner according to claim 14, characterized in that, The plate-shaped body has a test surface, and the temperature sensing surface is in contact with the test surface.

16. A stove, characterized in that, The device includes a bottom shell, a panel, and a burner as described in any one of claims 1 to 15, wherein the bottom shell forms an open mounting cavity, the panel covers the opening, the panel has a through hole, the burner passes through the through hole, and a portion of the burner is located inside the mounting cavity and a portion of the burner is located outside the mounting cavity.

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