Burner, burner and stove

Abstract

The furnace end comprises a furnace end body and a temperature sensing piece, the furnace end body is provided with an outer wall face and an inner wall face, the outer wall face and the inner wall face are oppositely arranged, a groove is formed in the furnace end body in a sunken mode from the outer wall face to the inner wall face, and at least part of the temperature sensing piece is arranged in the groove. According to the utility model, as the furnace end body is provided with the groove and the temperature sensing piece is arranged in the groove, on one hand, the thickness of the position of the furnace end body provided with the temperature sensing piece is reduced, and heat is easier to transfer to the temperature sensing piece; and on the other hand, the temperature sensing piece is embedded in the furnace end body, the periphery is conducted by heat of the furnace end body, and the temperature change of the temperature sensing piece is easier to synchronize with the heat source. When the furnace end is applied to the kitchen range to heat a pot, due to the fact that the temperature of the pot bottom is related to the temperature of the furnace end, the temperature of the pot bottom can be detected by sensing the temperature of the furnace end through the temperature sensing piece, and the accuracy of a detection result can be improved.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, specifically to a burner, a burner, and a stove. Background Technology

[0002] As stove usage increases, people's demands for stove safety also rise. Existing anti-dry-burn stoves are usually equipped with temperature sensors to detect the temperature of the pot and determine whether there is burner dry burning or accidental flameout based on the detected temperature. In such cases, the gas supply can be cut off immediately to avoid safety hazards.

[0003] Currently, since the temperature of the pot bottom is related to the temperature of the burner head, the temperature of the pot bottom can be detected by sensing the temperature of the burner head with a temperature sensor. Usually, the temperature sensor is directly attached to the outer surface of the burner head to detect the burner head temperature. However, because the burner head wall is relatively thick, the burner head stores a lot of heat and loses a lot of heat through heat transfer, resulting in low accuracy of the temperature sensor detection results. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a burner head is provided, the technical solution of which is as follows.

[0005] The burner head includes a burner head body and a temperature sensing element. The burner head body has an outer wall surface and an inner wall surface, which are arranged opposite to each other. A groove is formed on the burner head body by recessing from the outer wall surface to the inner wall surface, and the temperature sensing element is at least partially disposed in the groove.

[0006] The burner head of this invention features a groove on its body, within which the temperature sensor is housed. This design reduces the thickness of the burner body at the sensor location, facilitating heat transfer. Furthermore, the sensor, embedded within the burner body, is surrounded by heat conduction, allowing its temperature changes to synchronize more easily with the heat source. When applied to a cooktop for heating cookware, the temperature of the pot's bottom is correlated with the burner head's temperature. By sensing the burner head's temperature through the sensor, the pot's bottom temperature can be detected (i.e., indirectly detecting the cookware's temperature), thus improving the accuracy of the detection results.

[0007] For example, the burner head body has a thickness H, where H ≥ 2 mm. The thickness of the burner head body within this range forms a thick burner head, which not only enhances the structural strength of the burner head and improves its corrosion resistance and wear resistance, but also facilitates the setting of grooves on the burner head body.

[0008] For example, the groove has a bottom wall, and there is a distance H1 between the bottom wall and the inner wall surface, where 0.8mm ≤ H1 ≤ 2mm. With this setting, the distance H1 is within this range. On the one hand, this reduces the thickness of the burner body where the temperature sensing element is located, making it easier for heat to be transferred to the temperature sensing element. When the burner is used to heat the cookware, since the temperature of the bottom of the pot is related to the temperature of the burner, the temperature of the bottom of the pot can be detected by sensing the temperature of the burner through the temperature sensing element (i.e., indirectly detecting the temperature of the cookware), thus improving the accuracy of the detection results. On the other hand, it ensures the structural strength between the bottom wall and the inner wall surface, thereby preventing deformation due to high temperatures.

[0009] For example, the burner head body includes an ejector tube with an outer wall and an inner wall. A groove is formed on the ejector tube, recessed from the outer wall towards the inner wall. The outer wall forms a partial outer wall surface, and the inner wall forms a partial inner wall surface. With this configuration, since the ejector tube has a groove and the temperature sensor is located within it, the thickness of the ejector tube at the location of the temperature sensor is reduced, making it easier for heat to be transferred to the temperature sensor. Furthermore, because the temperature sensor is embedded in the ejector tube, it is surrounded by heat conduction from the ejector tube, making it easier for its temperature change to synchronize with the heat source. When the burner head is used to heat cookware, the temperature of the bottom of the cookware can be transferred to the ejector tube. By sensing the temperature of the ejector tube through the temperature sensor, the temperature of the bottom of the cookware can be indirectly detected, improving the accuracy of the detection results.

[0010] For example, the burner body also includes a flame distribution base with a bottom wall and a mounting hole. An injector tube passes through the mounting hole and is divided into a first section and a second section by the bottom wall. The first section is located above the bottom wall, and the second section is located below it. A groove is located on the second section. This arrangement, with the groove on the second section of the injector tube, facilitates the placement of a temperature sensing element within the groove. Firstly, the thickness of the second section where the temperature sensing element is located is reduced, making heat transfer to the element easier. Secondly, the temperature sensing element, embedded in the second section, is subjected to heat conduction from all sides, making its temperature change more synchronized with the heat source. When the burner is used to heat cookware, the temperature of the bottom of the cookware can be transferred to the second section. By sensing the temperature of the second section through the temperature sensing element, the temperature of the bottom of the cookware can be indirectly detected, improving the accuracy of the detection results.

[0011] For example, the second segment has an inclined portion that is inclined relative to the first segment, and a groove is provided on the inclined portion. This arrangement, with the groove on the inclined portion, not only reduces the thickness of the area where the temperature sensing element is located, making it easier for heat to be transferred to the temperature sensing element, but also facilitates installation and avoids interference with other components when the temperature sensing element is placed in the groove.

[0012] For example, the burner body includes a burner seat with an outer wall surface and an inner wall surface. A groove is formed on the burner seat by recesses from the outer wall surface towards the inner wall surface, wherein the outer wall surface forms a partial outer wall surface, and the inner wall surface forms a partial inner wall surface. With this configuration, since the burner seat has a groove, and the temperature sensor is disposed within the groove, on the one hand, the thickness of the burner seat at the location of the temperature sensor is reduced, making it easier for heat to be transferred to the temperature sensor; on the other hand, the temperature sensor is embedded in the burner seat and is subjected to heat conduction from all sides, making it easier for the temperature change of the temperature sensor to synchronize with the heat source. When the burner is applied to a cooktop to heat a pot, since the temperature of the bottom of the pot can be transferred to the burner seat, the temperature of the pot bottom can be indirectly detected by sensing the temperature of the burner seat through the temperature sensor, thus improving the accuracy of the detection results.

[0013] For example, the burner holder has a bottom wall with a groove located on it. With this configuration, since the groove is on the bottom wall and the temperature sensor is located within it, the thickness of the bottom wall where the temperature sensor is located is reduced, making heat transfer to the sensor easier. Furthermore, because the temperature sensor is embedded in the bottom wall, it is subjected to heat conduction from the bottom wall on all sides, making its temperature changes more easily synchronized with the heat source. When the burner is applied to the stove to heat cookware, the temperature of the bottom of the cookware can be transferred to the bottom wall of the burner. By sensing the temperature of the bottom wall through the temperature sensor, the temperature of the bottom of the cookware can be indirectly detected, improving the accuracy of the detection results.

[0014] For example, the temperature sensing element has a temperature sensing part disposed in a groove, the groove having an inner wall that contacts the surface of the temperature sensing part. This arrangement ensures that the temperature sensing part is subjected to heat conduction from the burner body on all sides, making it easier for the temperature change of the temperature sensing part to synchronize with the heat source.

[0015] For example, the temperature sensing element is connected to a fixing part, and the burner head body has a connecting part on the outer periphery of the groove. The fixing part is connected to the connecting part by fasteners. This configuration ensures the stability of the connection between the temperature sensing element and the burner head body, and the temperature sensing element can be easily disassembled and installed when maintenance or replacement is required.

[0016] For example, the temperature sensing element also has a lead portion, which has a connecting surface away from the inner wall of the groove. The lead portion is connected to the connecting surface and extends away from the inner wall of the groove to protrude outside the groove. This arrangement facilitates the output of the temperature sensing element to transmit signals to the outside, thereby realizing temperature sensing and monitoring.

[0017] According to another aspect of this utility model, a burner is provided, which includes a flame cap and a burner head as described above, the flame cap being disposed on the burner head body. Since the burner head described above has the aforementioned beneficial effects, the burner including the burner head described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0018] 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 a mounting cavity with a mounting opening, the panel covers the mounting opening, and the panel has a through hole through which the burner passes, with part of the burner located inside the mounting cavity and part of the burner located outside the mounting 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.

[0019] 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.

[0020] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] 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,

[0022] Figure 1 A perspective view of a stove head, which is an exemplary embodiment of the present invention;

[0023] Figure 2 for Figure 1 The image shown is a three-dimensional view of the burner from another angle;

[0024] Figure 3 for Figure 1 A cross-sectional view of the burner head shown;

[0025] Figure 4 for Figure 1 A three-dimensional view of the burner head body shown;

[0026] Figure 5 for Figure 4 A cross-sectional view of the burner head body shown;

[0027] Figure 6 for Figure 1 A three-dimensional view of the temperature sensing element shown;

[0028] Figure 7 A cross-sectional view of the burner head, which is another exemplary embodiment of the present invention;

[0029] Figure 8 A cross-sectional view of the burner head, which is another exemplary embodiment of the present invention;

[0030] Figure 9 This is a perspective view of a stove as an exemplary embodiment of the present invention.

[0031] The above figures include the following reference numerals:

[0032] 1. Burner; 10. Burner head; 110. Burner head body; 111. Outer wall surface; 112. Inner wall surface; 113. Groove; 1131. Groove bottom wall; 1132. Groove inner wall; 1133. Groove side wall; 114. Injector tube; 1141. Tube outer wall; 1142. Tube inner wall; 1143. Inner ring injector tube; 1144. Outer ring injector tube; 1145. First section; 1146. Second section; 1146a. Inclined part; 1146b, Straight section; 115, Flame holder; 1151, Outer wall of the holder; 1152, Inner wall of the holder; 1153, Bottom wall of the holder; 1153a, Mounting hole; 1154, Side wall of the holder; 116, Connecting part; 120, Temperature sensing element; 121, Temperature sensing part; 1211, Connecting surface; 1212, Temperature sensing surface; 122, Fixing part; 123, Lead wire part; 130, Fastener; 11, Flame cap; 2, Bottom shell; 3, Panel. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] An embodiment of this utility model provides a burner head. This burner head can be mounted on a burner, which can be used in a stove. The following will describe in detail one embodiment of this utility model with reference to the accompanying drawings.

[0036] See also Figures 1 to 8The burner head 10 may include a burner head body 110 and a temperature sensing element 120. The burner head body 110 may have an outer wall surface 111 and an inner wall surface 112. Here, the outer wall surface 111 refers to all exposed surfaces of the burner head body 110, and the inner wall surface 112 refers to all non-exposed surfaces of the burner head body 110. The outer wall surface 111 and the inner wall surface 112 may be arranged opposite to each other. A groove 113 may be formed on the burner head body 110, recessed from the outer wall surface 111 towards the inner wall surface 112. The temperature sensing element 120 may be at least partially disposed within the groove 113. The burner head body 110 may be made of metal to ensure that the burner head body 110 can conduct heat to the temperature sensing element 120. Specifically, the burner head body 110 may be made of cast iron or aluminum alloy.

[0037] The burner head 10 of this invention features a groove 113 on its body 110, within which a temperature sensing element 120 is disposed. This design reduces the thickness of the burner body 110 at the location of the temperature sensing element 120, facilitating heat transfer to the element. Furthermore, the element 120 is embedded within the burner body 110, ensuring it is surrounded by heat conduction, making its temperature changes more synchronized with the heat source. When the burner head 10 is used to heat cookware, the temperature of the pot bottom is related to the temperature of the burner head 10. Therefore, sensing the temperature of the burner head 10 through the temperature sensing element 120 allows for the detection of the pot bottom temperature (i.e., indirect detection of the cookware temperature), improving the accuracy of the detection results.

[0038] See Figure 5 The burner head body 110 can have a thickness H, where H ≥ 2mm, for example, H is 2mm, 3mm, 4mm, etc. This creates a thicker burner head 10, which not only enhances the structural strength of the burner head 10 and improves its corrosion resistance and wear resistance, but also facilitates the setting of grooves 113 on the burner head body 110. In one embodiment of this utility model, the thickness H of the burner head body 110 is 2mm to form a thicker burner head 10, which not only enhances the structural strength of the burner head 10 and improves its corrosion resistance and wear resistance, but also facilitates the setting of grooves 113 on the burner head body 110.

[0039] See also Figure 2 and Figure 5The groove 113 may have a bottom wall 1131, and the bottom wall 1131 and the inner wall surface 112 may have a distance H1, 0.8mm≤H1≤2mm, for example, H1 is 2mm, 1.4mm, 1mm, etc. Understandably, the distance H1 between the bottom wall 1131 and the inner wall surface 112 is less than the thickness H of the burner body 110. Thus, with the distance H1 within this range, on the one hand, the thickness of the burner body 110 at the location of the temperature sensing element 120 is reduced, and heat is more easily transferred to the temperature sensing element 120. When the burner 10 is used to heat the pot on the stove, since the temperature of the pot bottom is related to the temperature of the burner 10, the temperature of the pot bottom can be detected by sensing the temperature of the burner 10 through the temperature sensing element 120 (i.e., indirectly detecting the temperature of the pot), and the accuracy of the detection result can be improved; on the other hand, the structural strength between the bottom wall 1131 and the inner wall surface 112 can be guaranteed, thereby avoiding deformation due to high temperature. In one embodiment of this utility model, H1 is 1.4mm, the thickness of the stove body 110 at the temperature sensing element 120 is reduced, and heat is more easily transferred to the temperature sensing element 120.

[0040] See also Figures 1 to 5 The burner body 110 may include an injector tube 114. When the burner 10 is applied to a stove, the injector tube 114 is used to mix gas and air and introduce the mixture into the mixing chamber for combustion. It should be noted that the mixing chamber is formed by the burner seat 115 and the burner cap 11 mentioned below. The gas may include natural gas or liquefied petroleum gas, and is generally input in the form of compressed gas through the air inlet pipe, possessing high energy. The injector tube 114 uses high-energy gas to inject low-energy air, and after the two gases are uniformly mixed, they are output at a certain speed and flow rate to ensure stable combustion flame.

[0041] The ejector tube 114 may have an outer wall 1141 and an inner wall 1142, and a groove 113 may be formed by the indentation from the outer wall 1141 towards the inner wall 1142 on the ejector tube 114. Because the ejector tube 114 has sufficient thickness, it is easy to process, avoiding damage to the ejector tube 114 and gas leakage during the processing of the groove 113. Specifically, the outer wall 1141 may form a partial outer wall surface 111, and the inner wall 1142 may form a partial inner wall surface 112. Specifically, the ejector tube 114 may include an inner ring ejector tube 1143 and an outer ring ejector tube 1144. The inner ring ejector tube 1143 may be closer to the center of the burner body 110 than the outer ring ejector tube 1144. The central location of the inner ring ejector tube 1143 facilitates centralized flame control, while the outer ring ejector tube 1144, being farther from the center of the burner body 10 than the inner ring ejector tube 1143, helps to expand the combustion range. In one embodiment of this utility model, see reference Figure 2A groove 113 can be formed on the inner ring ejector tube 1143, and the temperature sensing element 121 can be disposed within the groove 113. It should be noted that the groove 113 can be formed at any suitable position on the inner ring ejector tube 1143, and the temperature sensing element 120 can be disposed at any suitable position on the inner ring ejector tube 1143 according to the groove 113. Since the temperature of the inner ring ejector tube 1143 is more easily synchronized with the temperature of the heat source, the temperature change of the temperature sensing element 120 is more easily synchronized with the heat source. In an embodiment not shown in the figure, the groove 113 can be formed at any suitable position on the outer ring ejector tube 1144, and the temperature sensing element 120 can also be disposed at any suitable position on the outer ring ejector tube 1144 according to the groove 113. Thus, because a groove 113 is formed on the ejector tube 114 and the temperature sensing element 120 is disposed within the groove 113, on the one hand, the thickness of the ejector tube 114 is reduced at the location where the temperature sensing element 120 is disposed, making it easier for heat to be transferred to the temperature sensing element 120; on the other hand, since the temperature sensing element 120 is embedded in the ejector tube 114, it is subjected to heat conduction from the ejector tube 114 on all sides, making it easier for the temperature change of the temperature sensing element 120 to synchronize with the heat source. When the burner head 10 is applied to the stove to heat the pot, since the temperature of the bottom of the pot can be transferred to the ejector tube 114, the temperature of the bottom of the pot can be indirectly detected by sensing the temperature of the ejector tube 114 through the temperature sensing element 120, which can improve the accuracy of the detection results.

[0042] See again Figures 1 to 5 The burner body 110 may further include a flame distribution seat 115. The flame distribution seat 115 may have a base wall 1153, on which a mounting hole 1153a may be provided. An injector 114 may pass through the mounting hole 1153a, and the injector 114 may be divided into a first section 1145 and a second section 1146 through the base wall 1153. The first section 1145 may be located above the base wall 1153. It should be noted that the first section 1145 may be located within the gas distribution groove formed by the flame distribution seat 115. The second section 1146 may be located below the base wall 1153. A groove 113 may be located on the second section 1146. Thus, since the groove 113 is located on the second section 1146 of the ejector tube 114, it is convenient to place the temperature sensing element 120 within the groove 113. On the one hand, the thickness of the second section 1146 where the temperature sensing element 120 is located is reduced, making it easier for heat to be transferred to the temperature sensing element 120; on the other hand, since the temperature sensing element 120 is embedded in the second section 1146, it is subjected to heat conduction from the second section 1146 on all sides, making it easier for the temperature change of the temperature sensing element 120 to synchronize with the heat source. When the burner 10 is applied to the stove to heat the pot, since the temperature of the bottom of the pot can be transferred to the second section 1146, the temperature of the bottom of the pot can be indirectly detected by sensing the temperature of the second section 1146 through the temperature sensing element 120, which can improve the accuracy of the detection results.

[0043] See also Figure 3 , Figure 5 and Figure 7The second segment 1146 may have an inclined portion 1146a, which is inclined relative to the first segment 1145, and a groove 113 may be provided on the inclined portion 1146a. Thus, the groove 113 being provided on the inclined portion 1146a not only reduces the thickness of the inclined portion 1146a at the location where the temperature sensing element 120 is located, making heat transfer easier to the temperature sensing element 120, but also facilitates installation and avoids interference with other components when the temperature sensing element 120 is placed in the groove 113. The second segment 1146 may also have a straight portion 1146b, which may be parallel to the base wall 1153. In an embodiment not shown in the figures, the groove 113 may also be provided on the straight portion 1146b to suit more scenarios.

[0044] See Figure 8 The burner body 110 may include a flame distribution seat 115. The flame distribution seat 115 may include an outer ring gas distribution groove and an inner ring gas distribution groove. The outer ring gas distribution groove can be connected to an outer ring injector 1144. The inner ring gas distribution groove can be connected to an inner ring injector 1143. The flame distribution seat 115 can evenly distribute the combustion gas into the outer ring gas distribution groove and the inner ring gas distribution groove, thereby ensuring combustion stability. The flame distribution seat 115 may have an outer wall surface 1151 and an inner wall surface 1152, and a groove 113 can be formed on the flame distribution seat 115 by recessing from the outer wall surface 1151 towards the inner wall surface 1152. Because the flame distribution seat 115 has sufficient thickness, it is easy to process, avoiding damage to the flame distribution seat 115 during the processing of the groove 113, which could affect the gas distribution. Specifically, the outer wall surface 1151 can form a partial outer wall surface 111, and the inner wall surface 1152 can form a partial inner wall surface 112. It should be noted that the groove 113 can be formed at any suitable position on the burner seat 115, and the temperature sensing element 120 can be set at any suitable position on the burner seat 115 according to the groove 113. Thus, since the groove 113 is formed on the burner seat 115, and the temperature sensing element 120 is set within the groove 113, on the one hand, the thickness of the burner seat 115 at the location of the temperature sensing element 120 is reduced, making it easier for heat to be transferred to the temperature sensing element 120; on the other hand, since the temperature sensing element 120 is embedded in the burner seat 115, it is subjected to heat conduction from the burner seat 115 on all sides, making it easier for the temperature change of the temperature sensing element 120 to synchronize with the heat source. When the burner head 10 is applied to the stove to heat the pot, since the temperature of the bottom of the pot can be transferred to the burner seat 115, the temperature of the bottom of the pot can be indirectly detected by sensing the temperature of the burner seat 115 through the temperature sensing element 120, which improves the accuracy of the detection results.

[0045] See again Figure 8The burner seat 115 may have a bottom wall 1153, and a groove 113 may be located on the bottom wall 1153. Since the groove 113 is located on the bottom wall 1153, and the temperature sensing element 120 is disposed within the groove 113, on the one hand, the thickness of the bottom wall 1153 where the temperature sensing element 120 is located is reduced, making it easier for heat to be transferred to the temperature sensing element 120; on the other hand, since the temperature sensing element 120 is embedded in the bottom wall 1153, it is subjected to heat conduction from the bottom wall 1153 on all sides, making it easier for the temperature change of the temperature sensing element 120 to synchronize with the heat source. When the burner 10 is applied to the stove to heat the pot, since the temperature of the bottom of the pot can be transferred to the bottom wall 1153, the temperature of the bottom of the pot can be indirectly detected by sensing the temperature of the bottom wall 1153 through the temperature sensing element 120, thus improving the accuracy of the detection results. The burner seat 115 may also have a side wall 1154, and the groove 113 may be located on the side wall 1154 to be suitable for more scenarios.

[0046] See again Figure 8 The burner base 115 and the injector tube 114 can be a single integrated structure, which not only saves assembly time but also provides good combustion efficiency when the burner body 110 is used in the stove to heat cookware. Alternatively, the burner base 115 and the injector tube 114 can be separate structures. The burner base 115 and the injector tube 114 can be connected by snap-fit ​​or screws, facilitating maintenance or cleaning of either the burner base 115 or the injector tube 114.

[0047] See also Figures 3 to 6 The temperature sensing element 120 may have a temperature sensing portion 121. The temperature sensing portion 121 may be a component of the temperature sensing element 120 used to sense the temperature of the burner body 110. The temperature sensing portion 121 may be disposed within a groove 113. The groove 113 may have an inner wall 1132. Understandably, the bottom wall 1131 of the groove may form part of the inner wall 1132. In some embodiments, the groove 113 may have a side wall 1133, which may form part of the inner wall 1132. The inner wall 1132 may be in surface contact with the temperature sensing portion 121. Specifically, the temperature sensing portion 121 may have a temperature sensing surface 1212, which may fit against the inner wall 1132. The volume and shape of the groove 113 are not specifically limited here, as long as the temperature sensing portion 121 can be completely embedded within the groove 113. In this way, the temperature sensing part 121 is ensured to be heated by the heat from the burner body 110, and the temperature change of the temperature sensing part 121 is more easily synchronized with the heat source.

[0048] In some embodiments, when the burner head 10 is applied to the stove to heat the pot, the temperature sensing unit 121 may be equipped with a negative temperature coefficient thermistor or the like. This is not limited to any particular device, as long as it can convert temperature information into other output or judgment signals. Thus, the temperature sensing unit 121 can monitor the temperature in real time and compare it with a preset temperature threshold. If the temperature of the pot bottom is higher than the preset temperature threshold, it is determined that dry burning has occurred. Alternatively, it can collect temperature information over a period of time, calculate the rate of temperature change during that period, and automatically select the threshold for activating the anti-dry burning function based on the rate of temperature change. Finally, if the temperature change of the pot bottom is higher than this threshold, it is determined that dry burning has occurred, and the gas supply is then cut off to prevent combustion.

[0049] 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. The temperature of the burner body 110 will also rise rapidly, causing the temperature change rate of the negative temperature coefficient thermistor to increase sharply.

[0050] Negative temperature coefficient (NTC) thermistors exhibit a temperature-resistance characteristic curve. When the temperature of an NTC thermistor increases, the steeper the slope of its temperature-resistance characteristic curve indicates that the thermistor is under continuous heating, thus confirming that the cookware is dry-heated. NTC thermistors respond quickly to temperature changes and have high sensitivity, providing accurate temperature measurements. Furthermore, NTC thermistors are simple in structure, low in cost, have a low failure rate, and good long-term stability. They also have high heat transfer efficiency, resulting in a sensitive response to temperature changes, and their simple structure and low operating cost further contribute to their effectiveness.

[0051] The temperature sensing element 120 can be connected to the furnace head body 110 by various connection methods (e.g., welding, pasting or screw connection) so that the temperature sensing part 121 contacts the inner wall 1132 of the tank.

[0052] See again Figures 3 to 6The temperature sensing part 121 can be connected to a fixing part 122. The burner head body 110 can have a connecting part 116 on the outer periphery of the groove 113. The fixing part 122 can be connected to the connecting part 116 by a fastener 130. The fastener 130 can be a screw or bolt, etc. Understandably, the fixing part 122 can be located outside the groove 113 to facilitate connection with the connecting part 116. The temperature sensing part 121 and the fixing part 122 can be an integral structure, which is convenient for processing and saves assembly time. The temperature sensing part 121 and the fixing part 122 can also be a separate structure, which is convenient for repairing or cleaning the fixing part 122 or the temperature sensing part 121. Specifically, the groove 113 can be provided on the ejector tube 114, and the connecting part 116 can be provided on the outer periphery of the groove 113, that is, the connecting part 116 can be provided on the ejector tube 114. The groove 113 can also be provided on the burner seat 115, and the connecting part 116 can be provided on the outer periphery of the groove 113. That is to say, the connecting part 116 can be provided on the burner seat 115. In this way, the stability of the connection between the temperature sensing element 120 and the burner body 110 is ensured, and the temperature sensing element 120 can be easily disassembled and installed when maintenance or replacement is required. Of course, the fixing part 122 and the connecting part 116 can also be connected by means of snap-fit ​​connection or welding.

[0053] See Figure 7 The temperature sensing part 121 can be connected to the inner wall 1132 of the tank by welding or adhesive bonding. Specifically, the groove 113 can be provided on the ejector tube 114, and the temperature sensing part 121 can be connected to the inner wall 1132 of the tank by welding or adhesive bonding. The groove 113 can also be provided on the flame distribution seat 115, and the temperature sensing part 121 can be connected to the inner wall 1132 of the tank by welding or adhesive bonding. In this way, it is avoided that additional parts need to be processed, thereby saving costs.

[0054] See also Figure 3 , Figure 6 , Figure 7 and Figure 8 The temperature sensing element 120 may also have a lead wire portion 123. The temperature sensing element 121 may have a connecting surface 1211 away from the inner wall 1132 of the groove. Understandably, the connecting surface 1211 does not contact the inner wall 1132 of the groove. The lead wire portion 123 can be connected to the connecting surface 1211, and the lead wire portion 123 can extend away from the inner wall 1132 of the groove to protrude outside the groove 113. The lead wire portion 123 can be an output signal line used to convert the temperature information collected by the temperature sensing element 121 into an output signal for transmission. Of course, the lead wire portion 123 can also be provided on other parts of the temperature sensing element 121, as long as the lead wire portion 123 can protrude outside the groove 113. In this way, it is convenient for the temperature sensing element 120 to output wires to transmit signals to the outside, thereby realizing temperature sensing and monitoring.

[0055] In an embodiment not shown in the figure, the end of the lead wire 123 furthest from the temperature sensing unit 121 can be connected to a controller. The temperature information collected by the temperature sensing unit 121 is converted into a signal by a negative temperature coefficient thermistor and transmitted to the controller via the lead wire 123. When the burner 10 is applied to the stove to heat the cookware, the controller can control the working state of the stove based on this signal. If the controller determines through this signal that the stove is in a situation such as dry burning of the cookware, accidental flameout, or prolonged high flame without placing the cookware on it, it can immediately cut off the gas supply to extinguish the stove and avoid safety hazards.

[0056] According to another aspect of the present invention, a burner 1 is provided. The burner 1 may include a flame cap 11 and a burner head 10 as described above. The flame cap 11 may be disposed on the burner head body 110. Since the burner head 10 as described above has the aforementioned beneficial effects, the burner 1 including the burner head 10 as described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0057] According to another aspect of this utility model, a stove is provided. (See also...) Figure 9 The stove may include a bottom shell 2, a panel 3, and a burner 1 as described above. The bottom shell 2 may form a mounting cavity with a mounting opening. The panel 3 may cover the mounting opening. The panel 3 may have a through hole. The burner 1 may pass through the through hole, and part of the burner 1 may be located inside the mounting cavity, while part of the burner 1 may be located outside the mounting cavity. Since the burner 1 described above has the aforementioned beneficial effects, the stove including the burner 1 described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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 stove head, characterized in that, The device includes a burner body and a temperature sensing element. The burner body has an outer wall surface and an inner wall surface, which are disposed opposite to each other. A groove is formed on the burner body by recessing from the outer wall surface toward the inner wall surface, and the temperature sensing element is at least partially disposed in the groove.

2. The burner head according to claim 1, characterized in that, The burner head body has a thickness H, where H ≥ 2 mm.

3. The burner head according to claim 1, characterized in that, The groove has a bottom wall, and there is a distance H1 between the bottom wall and the inner wall surface, where 0.8mm≤H1≤2mm.

4. The burner head according to claim 1, characterized in that, The burner head body includes an ejector tube, which has an outer wall and an inner wall. The ejector tube has a groove formed by recessing from the outer wall toward the inner wall. The outer wall forms a portion of the outer wall surface, and the inner wall forms a portion of the inner wall surface.

5. The burner head according to claim 4, characterized in that, The burner body also includes a flame distribution seat, which has a bottom wall and an installation hole. The ejector tube passes through the installation hole and is divided into a first section and a second section by the bottom wall. The first section is located above the bottom wall, and the second section is located below the bottom wall. The groove is located on the second section.

6. The burner head according to claim 5, characterized in that, The second segment has an inclined portion, which is inclined relative to the first segment, and the groove is provided on the inclined portion.

7. The burner head according to claim 1, characterized in that, The burner body includes a flame distribution seat, which has an outer wall surface and an inner wall surface. The flame distribution seat has a groove formed by recessing from the outer wall surface toward the inner wall surface, wherein the outer wall surface forms part of the outer wall surface and the inner wall surface forms part of the inner wall surface.

8. The burner head according to claim 7, characterized in that, The fire distribution seat has a bottom wall, and the groove is located on the bottom wall.

9. The burner head according to any one of claims 1 to 8, characterized in that, The temperature sensing element has a temperature sensing part, which is disposed in the groove. The groove has an inner wall, which is in contact with the surface of the temperature sensing part.

10. The burner head according to claim 9, characterized in that, The temperature sensing part is connected to the fixing part, and the burner body has a connecting part on the outer periphery of the groove. The fixing part is connected to the connecting part by fasteners.

11. The burner head according to claim 9, characterized in that, The temperature sensing element also has a lead wire portion, which has a connecting surface away from the inner wall of the groove. The lead wire portion is connected to the connecting surface and extends in a direction away from the inner wall of the groove to extend out of the groove.

12. A burner, characterized in that, It includes a flame cap and a burner head as described in any one of claims 1-11, wherein the flame cap is disposed on the burner head body.

13. A stove, characterized in that, The device includes a bottom shell, a panel, and a burner as described in claim 12. The bottom shell forms a mounting cavity with a mounting opening, the panel covers the mounting 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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