Combustor and stove

Abstract

The utility model provides a burner and stove, including ejection tube, fire cover, support and temperature sensing piece, ejection tube passes through the support location, the temperature sensing piece is provided on the support, wherein the ejection tube has the protruding pipe section that protrudes out of the support, the fire cover is sleeved on the protruding pipe section and divides the protruding pipe section into heat transfer section and heat conduction section, and the fire cover part is sleeved on the heat transfer section. Based on the arrangement of the heat transfer section and the heat conduction section, heat at the bottom of the cookware can be transferred to the heat transfer section from the fire cover and then transferred to the support through the heat conduction section, so that the temperature of the bottom of the cookware can be detected by sensing the temperature of the support through the temperature sensing piece, the temperature sensing piece is not affected by flames and does not interfere with the cookware, and the temperature sensing piece is convenient to use. The application range of the cooker is expanded, and the accuracy and rapidity of temperature detection are ensured.

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 the 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 an ejector pipe, a fire cover, a support and a temperature sensing piece, the ejector pipe is positioned by the support, and the temperature sensing piece is arranged on the support, wherein the ejector pipe has a protruding pipe section protruding from the support, the fire cover is sleeved on the protruding pipe section and divides the protruding pipe section into a heat transfer section and a heat conduction section, and a part of the fire cover is sleeved on the heat transfer section.

[0006] The burner of the utility model, based on the arrangement of the heat transfer section and the heat conduction section, when used for heating the pot, the heat of the bottom of the pot can be transmitted to the heat transfer section through the fire cover, and then transmitted to the support through the heat conduction section, and the temperature sensing piece is arranged on the support, so that the detection of the temperature of the bottom of the pot (i.e. indirect detection of the temperature of the pot) can be realized by sensing the temperature of the support. The temperature sensing piece is not affected by the flame, and even in the case of using a pointed-bottomed pot, the temperature sensing piece will not interfere with the pot, thereby expanding the application range of the range.

[0007] Exemplarily, the outer side of the heat transfer section has a first area S1, the outer side of the heat conducting section has a second area S2, and 0.8S1≤S2≤1.5S1. When the first area S1 and the second area S2 have such a relationship, the heat of the bottom of the pot can be sufficiently transferred to the support by the heat conducting section, ensuring the accuracy and rapidity of temperature detection.

[0008] Exemplarily, at least part of the temperature sensing member forms surface contact with the support. In this way, the contact area between the temperature sensing member and the support can be ensured, thereby ensuring the accuracy and rapidity of temperature detection.

[0009] Exemplarily, the fire cover has a bottom end surface, and in the axial direction of the protruding pipe section, the position where the surface contact is located has a first distance z from the bottom end surface, and the first distance z is 5mm-20mm. When the first distance z is set within this range, the heat of the bottom of the pot can be sufficiently transferred to the support by the heat conducting section, ensuring the accuracy of temperature detection.

[0010] Exemplarily, in the length direction of the support, the position where the surface contact is located has a second distance x from the center of the fire cover, and the second distance x is 12mm-15mm. When the second distance x is set within this range, the heat of the bottom of the pot can be sufficiently transferred to the support by the heat conducting section, ensuring the accuracy of temperature detection.

[0011] Exemplarily, in the width direction of the support, the position where the surface contact is located has a third distance y from the center of the fire cover, and 0mm≤y≤10mm. When the third distance y is set within this range, the heat of the bottom of the pot can be sufficiently transferred to the support by the heat conducting section, ensuring the accuracy of temperature detection.

[0012] Exemplarily, the support has a to-be-measured surface, and the temperature sensing member has a contact plane, and the contact plane is fitted with the to-be-measured surface. In this way, by fitting the contact plane with the to-be-measured surface, surface contact between the temperature sensing member and the support is ensured.

[0013] Exemplarily, the support has a plate-shaped body, the injection pipe is at least partially arranged in the plate-shaped body, and the to-be-measured surface is arranged on the plate-shaped body. In this way, not only is it convenient to position the injection pipe, but also in the case of heating with the pot on the burner, the temperature of the bottom of the pot above the burner is transferred to the plate-shaped body through the injection pipe, so that the temperature of the plate-shaped body is related to the temperature of the bottom of the pot, ensuring the accuracy and rapidity of temperature detection.

[0014] Exemplarily, the temperature sensing member has a sheet-shaped portion, and the contact plane is formed on the sheet-shaped portion. In this way, it is convenient for the temperature sensing member to form surface contact with the support, ensuring the accuracy and rapidity of temperature detection, and based on the sheet-shaped portion, it is more convenient to install the temperature sensing member.

[0015] Exemplarily, the sheet-shaped portion has a thickness D, and the thickness D is 0.4mm-1mm. The thickness D is set in this range, the sheet-shaped portion is more sensitive to temperature change, and the accuracy and rapidity of temperature detection of the sheet-shaped portion are ensured.

[0016] Exemplarily, in the axial direction of the protruding pipe segment, the heat transfer segment has a first length L1, and the first length L1 is 5mm-12mm. The first length L1 is set in this range, the problem that heat of the pot bottom is mostly blocked by the fire cover and cannot be fully transmitted to the bracket is avoided, and the accuracy of temperature detection is ensured.

[0017] Exemplarily, in the axial direction of the protruding pipe segment, the heat transfer segment has a second length L2, and the second length L2 is 5mm-12mm. The second length L2 is set in this range, heat of the pot bottom can be fully transmitted to the bracket by the heat transfer segment, and the accuracy of temperature detection is ensured.

[0018] According to another aspect of the present application, a stove is provided, which comprises a panel, a bottom shell and the burner as described above, the bottom shell surrounds a mounting cavity with an opening, the panel covers the opening, the panel is provided with a through hole, the burner is arranged in the through hole, and part of the burner is located in the mounting cavity and part of the burner is located outside the mounting cavity. Since the burner as described above has the beneficial effects described above, the stove comprising the burner as described above also has the beneficial effects described above, which will not be described one by one here.

[0019] A series of simplified forms are introduced in the utility model content, which will be described in detail in the specific embodiment part. The utility model content part does not mean trying to limit the key features and necessary technical features of the claimed technical scheme, and more does not mean trying to determine the protection scope of the claimed technical scheme.

[0020] The advantages and features of the present application will be described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The following drawings of the present application are hereby incorporated as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their description, which are used to explain the principles of the present application. In the drawings,

[0022] Figure 1 It is a perspective view of the stove of an exemplary embodiment of the present application;

[0023] Figure 2 It is a partial structure view of the burner of an exemplary embodiment of the present application (the position of the surface contact is located in front of the center of the ejector pipe);

[0024] Figure 3A partial structure view of the burner of one exemplary embodiment of the present application (the position of the surface contact is located at the rear of the center of the ejector pipe);

[0025] Figure 4 For Figure 2 A partial structure view of the burner of one exemplary embodiment of the present application (the position of the surface contact is located at the rear of the center of the ejector pipe);

[0026] Figure 5 A partial structure view of the burner of one exemplary embodiment of the present application (the position of the surface contact is located at the rear of the center of the ejector pipe);

[0027] Figure 6 A partial structure view of the burner of one exemplary embodiment of the present application (the position of the surface contact is located at the rear of the center of the ejector pipe);

[0028] Among them, the above-mentioned drawings include the following reference signs:

[0029] 1, stove; 10, burner; 110, ejector pipe; 111, convex pipe section; 1111, heat transfer section; 1112, heat conduction section; 112, ejector main body; 120, fire cover; 121, bottom end surface; 130, support; 131, to-be-measured surface; 132, plate-shaped body; 133, supporting leg; 1331, connecting end; 140, temperature sensing element; 141, contact plane; 142, sheet-shaped part; 1421, second mounting hole; 143, lead part; 1431, probe main body; 1432, signal transmission line; 150, fastener; 20, panel; 30, bottom shell. DETAILED DESCRIPTION

[0030] In the following description, a large number of details are provided in order to be able to thoroughly understand the present application. However, it can be appreciated by those skilled in the art that the following description only exemplarily shows the preferred embodiments of the present application, and the present application can be implemented without one or more such details. In addition, in order to avoid confusion with the present application, some technical features known in the art are not described in detail.

[0031] In order to thoroughly understand the embodiments of the present application, detailed structures will be proposed in the following description. Obviously, the implementation of the embodiments of the present application is not limited to the special details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can also have other embodiments.

[0032] The embodiments of the present application provide a kind of burner.The burner provided by the present application can be applied to stove.In the following, a kind of burner according to the embodiments of the present application will be introduced in detail with reference to the drawings.

[0033] In order to understand the present application as a whole, first, the burner is described.

[0034] Household burners typically consist of two main parts: a burner cap and a flame distribution base, allowing for diverse flame patterns. The burner cap can include an outer ring burner cap and an inner ring burner cap. The outer ring burner cap is located at the outermost layer of the burner, providing a wide heating area. The inner ring burner cap is located inside the outer ring burner cap, forming the central flame area for concentrated heating, and together with the outer ring burner cap, forming at least two rings of flame. The corresponding flame distribution base can include a large flame distribution base and a small flame distribution base. The outer ring burner cap can be placed on the large flame distribution base, and the inner ring burner cap can be placed on the small flame distribution base. The burner may also include a pot support. The pot support can be positioned around the outer ring burner cap. The cookware can be placed on the pot support. When the user turns on the burner, the combustible gas ejected from the flame distribution base is ignited by the ignition needle to form a flame. The flame can diffuse through the gaps in the burner cap to form a flame ring, thereby heating the cookware.

[0035] See also Figures 1 to 6 The burner 10 may include an ejector tube 110, a flame cap 120, a support 130, and a temperature sensing element 140. The ejector tube 110 can be positioned by the support 130. The temperature sensing element 140 can be disposed on the support 130. The ejector tube 110 may have a protruding tube section 111 extending beyond the support 130. The flame cap 120 may be fitted onto the protruding tube section 111, dividing the protruding tube section 111 into a heat transfer section 1111 and a heat conduction section 1112. A portion of the flame cap 120 may be fitted onto the heat transfer section 1111.

[0036] The burner 10 of this invention, based on the arrangement of the heat transfer section 1111 and the heat conduction section 1112, when used to heat a pot, the heat from the bottom of the pot can be transferred to the heat transfer section 1111 via the burner cap 120, and then to the support 130 via the heat conduction section 1112. The temperature sensing element 140 is set on the support 130, and the temperature of the bottom of the pot can be detected by sensing the temperature of the support 130 (i.e., indirectly detecting the temperature of the pot). The temperature sensing element 140 is not affected by the flame, and even when using a pointed-bottom pot, the temperature sensing element 140 will not interfere with the pot, thus expanding the applicability of the stove 1.

[0037] Based on the number of ejector tubes 110 and flame caps 120, burners 10 can generally be classified as single-ring burners, double-ring burners, and triple-ring burners. In some cases with special requirements or for special applications, burners 10 may also have more than three ejector tubes 110 and flame caps 120, i.e., flames with more than three rings. For a single-ring burner, there is only one injector tube 110 and flame cap 120, and the support 130 can position this single injector tube. For a double-ring burner, there are two injector tubes 110 and flame caps 120, typically including an inner ring injector tube with an inner flame cap and an outer ring injector tube with an outer flame cap. In this case, the support 130 can position the inner ring injector tube, or the support 130 can also position the outer ring injector tube, or the support 130 can position both the inner and outer ring injector tubes simultaneously. For a triple-ring burner, there are three injector tubes 110, typically including an inner ring injector tube with an inner flame cap, a middle ring injector tube with a middle flame cap, and an outer ring injector tube with an outer flame cap. In this case, the support 130 can position at least one of the three: the inner ring injector tube, the middle ring injector tube, or the outer ring injector tube. Therefore, the ejector tube 110 mentioned later can be an inner ring ejector tube, a middle ring ejector tube, or an outer ring ejector tube.

[0038] See also Figures 2 to 5 The bracket 130 can position the inner ring ejector tube. It should be understood that when a pot is placed on the burner 10, the central area of ​​the pot bottom is typically where heat is concentrated. When there are two or more ejector tubes 110, the inner ring burner cap fitted onto the inner ring ejector tube is closer to the center of the burner 10, and the temperature of the inner ring burner cap better reflects the temperature of the pot bottom. By positioning the inner ring ejector tube with the bracket 130, the heat on the inner ring burner cap can be transferred to the bracket 130 through the inner ring ejector tube, thus allowing the bracket 130 to more accurately reflect the temperature of the pot bottom. In embodiments not shown, the bracket 130 can also position ejector tubes 110 other than the inner ring ejector tube; or, ejector tubes 110 other than the inner ring ejector tube can also be positioned by a different bracket than the bracket 130, that is, the inner ring ejector tube and ejector tubes 110 other than the inner ring ejector tube can be positioned by different components.

[0039] It should be understood that in this embodiment of the invention, the temperature sensing element 140 indirectly detects the temperature of the pot bottom by detecting the temperature of the support 130. To ensure the accuracy of temperature detection, the support 130 can be made of a thermally conductive material, such as metal or other materials with good thermal conductivity. The ejector tube 110 can also be made of a thermally conductive material, such as metal or other materials with good thermal conductivity. The support 130 and the ejector tube 110 can be made of the same material, such as stainless steel, thus forming a stainless steel assembly. Furthermore, the burner cap 120 can also be made of stainless steel, thus forming a stainless steel assembly with the support 130, the ejector tube 110, and the burner cap 120. Of course, the burner cap 120 can also be made of other materials, such as metal or non-metal.

[0040] See Figure 5 The outer surface of the heat transfer section 1111 can have a first area S1, and the outer surface of the heat conduction section 1112 can have a second area S2, where 0.8S1≤S2≤1.5S1. For example, 0.8S1=S2, 1.1S1=S2, 1.5S1=S2, etc. When the first area S1 and the second area S2 have this relationship, the heat at the bottom of the pot can be fully transferred to the support 130 by the heat conduction section 1112, ensuring the accuracy and speed of temperature detection. In one embodiment of this utility model, S1=S2, which effectively ensures the accuracy and speed of temperature detection.

[0041] See also Figures 1 to 5 The flame cap 120 may have a bottom end face 121. In the axial direction of the protruding tube section 111 (i.e.... Figure 5 The contact point (in the Z direction) and the bottom surface 121 can have a first distance z. The first distance z can be 5mm to 20mm. For example, the first distance z can be 5mm, 13mm, 20mm, etc. With the first distance z set within this range, the heat from the bottom of the pot can be fully transferred to the support 130 by the heat-conducting section 1112, ensuring the accuracy of temperature detection. In one embodiment of this utility model, the first distance z can be 11.2mm. In this case, the heat from the bottom of the pot can be transferred to the support 130 more fully by the heat-conducting section 1112, further ensuring the accuracy of temperature detection.

[0042] See also Figure 2 , Figure 3 and Figure 5 In the length direction of the bracket 130 (i.e. Figure 2 , Figure 3 and Figure 5The second distance x between the surface contact location and the center of the burner cap 120 (in the X direction) can be 12mm to 15mm. For example, the second distance x can be 12mm, 14mm, 15mm, etc. With the second distance x set within this range, the heat from the bottom of the pot can be fully transferred to the support 130 by the heat-conducting section 1112, ensuring the accuracy of temperature detection. In one embodiment of this utility model, the second distance x can be 13.5mm. In this case, the heat from the bottom of the pot can be transferred to the support 130 more fully by the heat-conducting section 1112, further ensuring the accuracy of temperature detection.

[0043] See also Figure 2 and Figure 3 In the width direction of bracket 130 (i.e. Figure 2 and Figure 3 The third distance y between the contact point of the cookware and the center of the burner cap 120 (in the Y direction) can be 0mm ≤ y ≤ 10mm. For example, the third distance y can be 0mm, 5mm, 10mm, etc. With the third distance y set within this range, the heat from the bottom of the cookware can be fully transferred to the support 130 by the heat-conducting section 1112, ensuring the accuracy of temperature detection. In one embodiment of this utility model, the third distance y can be 6mm. In this case, the heat from the bottom of the cookware can be transferred to the support 130 more fully by the heat-conducting section 1112, further ensuring the accuracy of temperature detection.

[0044] For example, see Figure 2 In the width direction of bracket 130 (i.e. Figure 2 and Figure 3 In the Y direction, the location of the surface contact can be located behind the center of the fire cover 120.

[0045] For example, see Figure 3 In the width direction of bracket 130 (i.e. Figure 2 and Figure 3 In the Y direction, the position of the surface contact can be located in front of the center of the fire cover 120.

[0046] In this embodiment of the invention, to ensure the accuracy and speed of temperature detection, at least a portion of the temperature sensing element 140 can form surface contact with the bracket 130. This ensures the contact area between the temperature sensing element 140 and the bracket 130, thereby guaranteeing the accuracy and speed of temperature detection.

[0047] Specifically, the bracket 130 may have a surface to be measured 131. The temperature sensing element 140 may have a contact plane 141. The contact plane 141 may be in contact with the surface to be measured 131. In this way, by the contact plane 141 being in contact with the surface to be measured 131, surface contact is ensured between the temperature sensing element 140 and the bracket 130.

[0048] See also Figures 2 to 5 The support 130 may have a plate-shaped body 132 and a leg 133. One end of the leg 133 may be disposed on the plate-shaped body 132. The end of the leg 133 away from the plate-shaped body 132 may form a connecting end 1331. See reference. Figure 1 When the burner 10 is applied to the stove 1, the connecting end 1331 can be fixedly connected to the bottom shell 30 of the stove 1 to secure the burner 10. The ejector tube 110 can at least partially pass through the plate-shaped body 132. The surface to be measured 131 can be set on the plate-shaped body 132. This not only facilitates the positioning of the ejector tube 110, but also ensures the accuracy and speed of temperature detection, as the temperature of the pot bottom above the burner 10 is transferred to the plate-shaped body 132 through the ejector tube 110 when the pot is heated.

[0049] For example, in conjunction with reference Figures 2 to 5 The surface to be measured 131 can be a portion of the lower surface of the plate-shaped body 132. Understandably, the temperature sensing element 140 is entirely disposed below the plate-shaped body 132, that is, the temperature sensing element 140 is disposed on the side of the plate-shaped body 132 furthest from the pot. On the one hand, this avoids the influence of flame combustion on temperature detection, ensuring the accuracy of temperature detection; on the other hand, the temperature sensing element 140 is hidden below the plate-shaped body 132, effectively preventing leaked soup or liquid from contacting the temperature sensing element 140 and affecting its detection accuracy and service life.

[0050] In an embodiment not shown, the surface to be measured 131 may be a portion of the upper surface of the plate-shaped body 132. Understandably, the temperature sensing element 140 is entirely disposed above the plate-shaped body 132, that is, the temperature sensing element 140 is disposed on the side of the plate-shaped body 132 closer to the operator. This facilitates the installation of the temperature sensing element 140 and ensures that the temperature sensing element 140 forms surface contact with the support 130.

[0051] In an embodiment not shown, the surface to be tested 131 can be mounted on the support leg 133. This allows for full utilization of the internal space of the cooktop 1 when the burner 10 is used on the cooktop 1.

[0052] For example, the surface to be tested 131 can be a portion of the outer side of the foot 133 away from the plate-shaped body 132.

[0053] For example, the surface to be tested 131 can be a portion of the inner side of the foot 133 near the plate-shaped body 132.

[0054] In an embodiment not shown, the support 130 may have a protrusion extending beyond the upper surface of the plate-like body 132 or the outer side of the support leg 133. A temperature sensing element 140 may be disposed on the protrusion. Specifically, the protrusion may enclose a receiving cavity with an inner opening. At least a portion of the inner wall surface of the receiving cavity may be configured as the surface to be measured 131; or, at least a portion of the outer wall surface of the receiving cavity may be configured as the surface to be measured 131.

[0055] In an embodiment not shown, the support 130 may have a recessed groove recessed into the lower side of the plate-like body 132 or the inner side of the support leg 133. The temperature sensing element 140 may be disposed on the recessed groove. Specifically, at least a portion of the inner wall surface of the recessed groove may be configured as the surface to be measured 131; or, at least a portion of the outer wall surface of the recessed groove may be configured as the surface to be measured 131.

[0056] See also Figure 4 and Figure 6 The temperature sensing element 140 may have a sheet-like portion 142. A contact plane 141 may be formed on the sheet-like portion 142. This facilitates surface contact between the temperature sensing element 140 and the bracket 130, ensuring the accuracy and speed of temperature detection. Furthermore, the sheet-like portion 142 makes it easier to install the temperature sensing element 140.

[0057] See Figure 6 The sheet-like portion 142 may have a thickness D. The thickness D can be from 0.4 mm to 1 mm. For example, the thickness D can be 0.4 mm, 0.5 mm, 1 mm, etc. With the thickness D set within this range, the sheet-like portion 142 is more sensitive to temperature changes, ensuring the accuracy and speed of temperature detection by the sheet-like portion 142. In one embodiment of this invention, the thickness D is 0.7 mm, which effectively ensures the accuracy and speed of temperature detection by the sheet-like portion 142.

[0058] In the above embodiments, the sheet-like portion 142 can be tightly fitted to the surface 131 to be measured by fasteners 150. This ensures the stability of the connection between the temperature sensing element 140 and the heat-conducting element, and also guarantees good surface contact. Specifically, a first mounting hole (not shown in the figure) can be provided on the surface 131 to be measured. A second mounting hole 1421 can be provided on the sheet-like portion 142. Fasteners 150 pass through the first mounting hole and the second mounting hole 1421 in sequence to fix the sheet-like portion 142 to the plate-like body 132. Fasteners 150 can be screws, bolts, etc. In embodiments not shown, the temperature sensing element 140 can also be connected to the heat-conducting element by other means, such as welding, riveting, bonding, snap-fit ​​connection, etc.

[0059] It should be noted that the location of the surface contact is positioned with respect to the center of the contact plane 141. When a second mounting hole 1421 is provided on the sheet-like portion 142, the center of the contact plane 141 is the center of the second mounting hole 1421. In some embodiments, refer to... Figures 2 to 5 The first mounting hole and the second mounting hole 1421 can be concentric, so the axis of the fastener 150 can also be concentric with the first mounting hole and the second mounting hole 1421. At this time, the position of the surface contact can be the position of the axis of the fastener 150.

[0060] In some embodiments, the sheet-like portion 142 may have an alloy material layer and an electroplated layer. The electroplated layer may be formed on the surface of the alloy material layer, and a contact plane 141 may be formed on the outer surface of the electroplated layer away from the alloy material layer. This further improves the accuracy of temperature detection, and the electroplated layer also prevents the sheet-like portion 142 from rusting, thereby extending the service life of the temperature sensing element 140. Specifically, the alloy material layer may be made of copper. Copper has excellent thermal conductivity, being the second best thermally conductive material among pure metals. The electroplated layer may be made of nickel. Nickel not only has good thermal conductivity but also good thermal stability, effectively protecting the alloy material layer and preventing the sheet-like portion 142 from rusting. Of course, the alloy material layer and the electroplated layer may also be made of other materials.

[0061] See also Figures 4 to 6 The temperature sensing element 140 may have a sheet-like portion 142 and a lead portion 143. The lead portion 143 may include a probe body 1431 connected to the sheet-like portion 142. The probe body 1431 may contain a device (hereinafter referred to as a conversion device) that can convert temperature information into other output or identifiable signals, such as a temperature sensor. Specifically, this device may be a negative temperature coefficient thermistor. Under normal heating conditions, the temperature change rate of a negative temperature coefficient thermistor is relatively stable. However, when the cookware becomes dry-burned, due to insufficient medium to absorb heat, the temperature of the cookware rises rapidly, and the temperature of the support 130 also rises rapidly, causing a sharp increase in the temperature change rate of the negative temperature coefficient thermistor.

[0062] 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-burning state. NTC thermistors have a fast response time and high sensitivity to temperature changes, 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 cost of the burner 10, improving its reliability.

[0063] In some embodiments, the probe body 1431 may contain a thermally conductive medium. This allows the temperature of the support 130 to be transferred to the conversion device more effectively and precisely, 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.

[0064] Furthermore, in conjunction with reference Figure 2 , Figure 3 , Figure 4 and Figure 6 The lead portion 143 may further 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 transmission of the output signal converted from the temperature information collected by the temperature sensing element 140, but also prevents high temperatures from affecting the signal transmission line 1432, as the signal transmission line 1432 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.

[0065] Specifically, the ejector tube 110 may have an ejector body 112. The ejector body 112 may be connected to a gas pipe (not shown in the figure). Combustible gas can enter the ejector body 112 through the gas pipe, and then be ejected from the end of the ejector tube 110 away from the gas pipe, and finally ignited by an ignition needle to form a flame. The lead wire portion 143 may be connected to the end of the plate-shaped portion 142 away from the ejector body 112. In this way, the influence of the heat generated by combustion near the ejector tube 110 on the lead wire portion 143 is reduced, the lead wire portion 143 is protected, the service life of the temperature sensing element 140 is extended, and the accuracy of the temperature sensing element 140 is ensured.

[0066] 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 plate-shaped portion 142 of the temperature sensing element 140 is converted into a signal by a conversion device and transmitted to the controller via the signal transmission line 1432. The controller can control the operating state of the burner 10 based on this signal. When the controller determines, based on this signal, that the burner 10 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 burner 10 and avoid safety hazards.

[0067] In the above embodiments, the temperature sensing element 140 is tightly fitted to the surface to be measured 131 via the sheet-like portion 142 to form surface contact. In embodiments not shown, the sheet-like portion 142 can be replaced by a wire. The wire can be disposed on the surface to be measured 131 and form line contact with the support 130. It should be understood that surface contact enhances the connection stability between the temperature sensing element 140 and the support 130 compared to line contact. Specifically, refer to... Figures 2 to 5 When the surface to be tested 131 is disposed on the plate-shaped body 132, the linear body can form a line contact with the lower surface of the plate-shaped body 132, and in an embodiment not shown, it can also form a line contact with the upper surface of the plate-shaped body 132.

[0068] See Figure 5 In the axial direction of the protruding pipe section 111 (i.e. Figure 5 In the Z direction (as shown in the diagram), the heat transfer section 1111 can have a first length L1. The first length L1 can be 5mm to 12mm. For example, the first length L1 can be 5mm, 7mm, 12mm, etc. Setting the first length L1 within this range avoids the problem that most of the heat from the bottom of the pot is blocked by the burner cap 120 and cannot be fully transferred to the support 130, thus ensuring the accuracy of temperature detection. In one embodiment of this utility model, the first length L1 is 8mm. In this case, the problem that most of the heat from the bottom of the pot is blocked by the burner cap 120 and cannot be fully transferred to the support 130 is effectively avoided, thus ensuring the accuracy of temperature detection.

[0069] See again Figure 5 In the axial direction of the protruding pipe section 111 (i.e. Figure 5In the Z direction (as shown in the diagram), the heat-conducting section 1112 may have a second length L2. The second length L2 can be 5mm to 12mm. For example, the second length L2 can be 5mm, 7mm, 12mm, etc. With the second length L2 set within this range, the heat from the bottom of the pot can be fully transferred to the support 130 by the heat-conducting section 1112, ensuring the accuracy of temperature detection. In one embodiment of this utility model, the second length L2 is 8mm. In this case, the heat from the bottom of the pot can be transferred to the support 130 more fully by the heat-conducting section 1112, ensuring the accuracy of temperature detection.

[0070] According to another aspect of the present invention, a stove 1 is provided, including a panel 20, a bottom shell 30, and a burner 10 as described above. The bottom shell 30 can form a mounting cavity with an opening. The panel 20 can cover the opening. The panel 20 can be provided with a through hole. The burner 10 can pass through the through hole, with part of the burner 10 located inside the mounting cavity and part of the burner 10 located outside the mounting cavity. Since the burner 10 described above has the aforementioned beneficial effects, the stove 1 including the burner 10 described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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, The device includes an ejector tube, a flame cap, a support, and a temperature sensing element. The ejector tube is positioned by the support, and the temperature sensing element is disposed on the support. The ejector tube has a protruding tube section that protrudes from the support. The flame cap is sleeved on the protruding tube section and divides the protruding tube section into a heat transfer section and a heat conduction section. A portion of the flame cap is sleeved on the heat transfer section.

2. The burner according to claim 1, characterized in that, The outer surface of the heat transfer section has a first area S1, and the outer surface of the heat conduction section has a second area S2, where 0.8S1≤S2≤1.5S1.

3. The burner according to claim 1, characterized in that, At least a portion of the temperature sensing element forms surface contact with the bracket.

4. The burner according to claim 3, characterized in that, The flame cap has a bottom end face. In the axial direction of the protruding pipe section, the position of the surface contact is separated from the bottom end face by a first distance z, which is 5mm to 20mm.

5. The burner according to claim 3, characterized in that, Along the length of the bracket, the location of the surface contact is separated from the center of the flame cap by a second distance x, which is 12mm to 15mm.

6. The burner according to claim 3, characterized in that, In the width direction of the bracket, the location of the surface contact is at a third distance y from the center of the flame cap, where 0mm≤y≤10mm.

7. The burner according to claim 3, characterized in that, The bracket has a surface to be measured, and the temperature sensing element has a contact plane that is in contact with the surface to be measured.

8. The burner according to claim 7, characterized in that, The support has a plate-shaped body, the ejector tube is at least partially inserted through the plate-shaped body, and the surface to be tested is disposed on the plate-shaped body.

9. The burner according to claim 7, characterized in that, The temperature sensing element has a sheet-like portion, and the contact plane is formed on the sheet-like portion.

10. The burner according to claim 9, characterized in that, The sheet-like portion has a thickness D, which is 0.4 mm to 1 mm.

11. The burner according to any one of claims 1 to 10, characterized in that, In the axial direction of the protruding tube section, the heat transfer section has a first length L1, which is 5mm to 12mm.

12. The burner according to any one of claims 1 to 10, characterized in that, In the axial direction of the protruding tube section, the heat-conducting section has a second length L2, which is 5mm to 12mm.

13. A stove, characterized in that, The device includes a panel, a bottom shell, and a burner as described in any one of claims 1-12, wherein the bottom shell forms a mounting cavity with an opening, 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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