Burner, burner and stove

Abstract

The utility model provides a burner, burner and stove, including ejection tube and temperature sensing piece, ejection tube is connected with heat conduction piece, temperature sensing piece forms surface contact with heat conduction piece at least part, the position of surface contact is located in the annular area, the outer contour line of ejection tube constitutes the inner circle of annular area, and the outer contour line of ejection tube constitutes the inner circle of annular area. The outer contour line of the injection pipe deviates by L distance to form the outer ring of the annular area, and L is smaller than or equal to 40 mm. According to the electric cooker, at least part of the temperature sensing part is in surface contact with the heat conduction part, and the temperature of the heat conduction part is related to the temperature of the bottom of the cooker, so that the temperature of the bottom of the cooker can be detected by sensing the temperature of the heat conduction part through the temperature sensing part, the temperature sensing part is not influenced by flames, and the accuracy and rapidity of temperature detection are ensured; moreover, even if a pot with a sharp bottom is used, the temperature sensing piece cannot interfere with the pot, so that the application range of the cooker is expanded.

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 the usage rate of gas stoves increases, people's requirements for stove safety are also rising. Existing gas stoves are usually equipped with temperature sensors to detect the temperature of the cookware and determine whether there are issues such as 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] Most gas stoves on the market currently use an external temperature sensor that contacts the bottom of the cookware to detect its temperature. When the bottom temperature exceeds a preset temperature, the stove automatically shuts off to protect the flame. Simultaneously, in case of accidental flameout or prolonged periods without a pot on the stove, the gas supply can be cut off immediately based on the external temperature sensor's readings to prevent accidents. However, external temperature sensors have certain limitations. For example, because they need to contact the bottom of the cookware, only flat-bottomed pans can be used for cooking to avoid interference. Additionally, external temperature sensors are susceptible to flame interference, which can cause them to inaccurately detect the bottom temperature of the cookware, leading to abnormal flameouts. 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 an ejector tube and a temperature sensing element. The ejector tube is connected to a heat-conducting element. At least a portion of the temperature sensing element forms a surface contact with the heat-conducting element. The surface contact location is within an annular region. The outer contour of the ejector tube forms the inner ring of the annular region. The outer contour of the ejector tube is offset by a distance L to form the outer ring of the annular region, where L≤40mm.

[0006] In this invention, at least a portion of the temperature-sensing element forms surface contact with a heat-conducting element connected to an ejector tube. When the burner is used on a stove, since the temperature of the heat-conducting element is related to the temperature of the pot bottom, the temperature of the pot bottom can be detected by sensing the temperature of the heat-conducting element (i.e., indirectly detecting the pot temperature). The temperature-sensing element is not affected by the flame, ensuring not only the accuracy and speed of temperature detection, but also that even when using a pointed-bottom pot, the temperature-sensing element will not interfere with the pot, expanding the applicability of the stove. Within this range, the accuracy and speed of temperature detection are further guaranteed.

[0007] For example, the ejector tube has a circular cross-section, and the annular region is constructed as follows: with the center of the ejector tube as the center, the inner radius is R1 and the outer radius is R2, where R1 > 1 / 2D, R1 < R2 ≤ 60mm, and D is the outer diameter of the ejector tube. When R1 and D have this relationship, it is convenient for the temperature sensing element and the heat conducting element to form surface contact, and with R1 and R2 within this range, the accuracy and speed of temperature detection are effectively guaranteed.

[0008] For example, the burner head includes a bracket for positioning the ejector tube. The bracket has a plate-shaped body through which the ejector tube passes. The plate-shaped body forms a heat-conducting element, and the surface contact position is located on the plate-shaped body. This not only facilitates the positioning of the ejector tube, but also, since the temperature of the pot bottom above the burner head is transferred to the plate-shaped body through the ejector tube when the pot is being heated, the temperature of the plate-shaped body is correlated with the temperature of the pot bottom, ensuring accurate and rapid temperature detection.

[0009] For example, the plate-shaped body 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. In this way, by the contact plane being in contact with the surface to be measured, surface contact is ensured between the temperature sensing element and the heat-conducting element.

[0010] For example, the burner head includes a bracket for positioning the ejector tube. The bracket has a plate-shaped body through which the ejector tube passes, and a heat-conducting element is disposed above the plate-shaped body; or, the heat-conducting element is disposed below the plate-shaped body. Thus, when the heat-conducting element is disposed above the plate-shaped body, it facilitates the installation of the temperature sensing element; when the heat-conducting element is disposed below the plate-shaped body, the plate-shaped body can shield the heat-conducting element, effectively preventing leaked liquid from contacting the temperature sensing element and affecting its accuracy and lifespan.

[0011] For example, the heat-conducting component has a sleeve portion, and the ejector tube has a mating section. The sleeve portion has a through hole, and the sleeve portion is fitted onto the mating section through the through hole. This facilitates the installation of the heat-conducting component, and since the temperature of the pot bottom above the burner is transferred to the sleeve portion through the ejector tube when the pot is heated, the temperature of the heat-conducting component is correlated with the temperature of the pot bottom, ensuring the accuracy and speed of temperature detection.

[0012] For example, the outer edge of the sleeve extends into a plate-shaped portion, which has a surface to be measured. The temperature sensing element has a contact plane that fits against the surface to be measured. This facilitates the installation of the temperature sensing element, and since the temperature of the pot bottom above the burner is transferred to the plate-shaped portion through the ejector tube when the pot is heated, the temperature of the plate-shaped portion is correlated with the temperature of the pot bottom, ensuring the accuracy and speed of temperature detection.

[0013] For example, the temperature sensing element has a sheet-like portion on which a contact plane is formed. This facilitates surface contact between the temperature sensing element and the bracket, ensuring the accuracy and speed of temperature detection. Furthermore, the sheet-like portion design makes it easier to install the temperature sensing element.

[0014] For example, the sheet-like portion has a thickness M, which is 0.4 mm to 1 mm. With the thickness M set within this range, the sheet-like portion is more sensitive to temperature changes, ensuring the accuracy and speed of temperature detection by the sheet-like portion.

[0015] For example, the sheet-like portion has an alloy material layer and an electroplated layer, the electroplated layer being formed on the surface of the alloy material layer, and the electroplated layer forming a contact plane away from the outer surface of the alloy material layer. This further improves the accuracy of temperature detection, and the electroplated layer also prevents the sheet-like portion from rusting, thereby extending the service life of the temperature sensing element.

[0016] For example, the portion of the surface to be tested that is in contact with the contact plane has a contact area S, and the contact area S is 30 mm. 2 ~120mm 2 The contact area S is set within this range, so that the contact plane can fit tightly and make full contact with the surface to be measured.

[0017] According to another aspect of this utility model, a burner is provided, including a flame distribution seat, a flame cap, and a burner head as described above. The flame cap and the flame distribution seat enclose a mixing chamber, which is connected to an injector tube. 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, including 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 as an exemplary embodiment of the present invention;

[0023] Figure 2 This is a perspective view of a stove head, which is an exemplary embodiment of the present invention (a plate-shaped body forms a heat-conducting element, and a portion of the lower surface of the plate-shaped body forms a surface to be tested).

[0024] Figure 3 This is a perspective view of a stove head, which is an exemplary embodiment of the present invention (the heat-conducting element and the support have different structures, and a portion of the lower surface of the heat-conducting element forms the surface to be measured).

[0025] Figure 4 for Figure 3 AA section view in the middle;

[0026] Figure 5 This is a cross-sectional view of a burner as an exemplary embodiment of the present invention (a plate-shaped body forms a heat-conducting element, and a portion of the upper surface of the plate-shaped body forms a surface to be measured).

[0027] Figure 6 This is a cross-sectional view of a stove head, which is an exemplary embodiment of the present invention (a plate-shaped body forms a heat-conducting element, and a portion of the lower surface of the plate-shaped body forms a surface to be measured).

[0028] Figure 7 A cross-sectional view of a stove head as an exemplary embodiment of the present invention (the heat-conducting element and the support have different structures, the heat-conducting element is disposed above the plate-shaped body, and a portion of the upper surface of the plate-shaped part forms the surface to be measured).

[0029] Figure 8 A cross-sectional view of a stove head as an exemplary embodiment of the present invention (the heat-conducting element and the support have different structures; the heat-conducting element is disposed above the plate-shaped body; a portion of the lower surface of the plate-shaped part forms the surface to be measured).

[0030] Figure 9 A cross-sectional view of a stove head as an exemplary embodiment of the present invention (the heat-conducting component and the support have different structures; the heat-conducting component is disposed below the plate-shaped body; a portion of the upper surface of the plate-shaped part forms the surface to be measured).

[0031] Figure 10 A cross-sectional view of a stove head as an exemplary embodiment of the present invention (the heat-conducting element and the support have different structures, the heat-conducting element is disposed below the plate-shaped body, and a portion of the lower surface of the plate-shaped part forms the surface to be measured).

[0032] Figure 11 This is a perspective view of a temperature sensing element as an exemplary embodiment of the present invention.

[0033] The above figures include the following reference numerals:

[0034] 1. Burner; 10. Furnace head; 110. Injector tube; 111. Fitting section; 112. Injector body; 120. Temperature sensing element; 121. Contact plane; 122. Plate-shaped part; 1221. Second mounting hole; 123. Lead wire part; 1231. Probe body; 1232. Signal transmission line; 130. Heat-conducting element; 131. Sleeve part; 132. Plate-shaped part; 140. Annular area; 141. Inner ring; 142. Outer ring; 150. Support; 151. Plate-shaped body; 152. Support leg; 1521. Connecting end; 160. Surface to be tested; 170. Fastener; 20. Flame holder; 30. Flame cap; 40. Mixing chamber; 2. Panel; 3. Bottom shell. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] An embodiment of this utility model provides a burner head. The burner head provided by this utility model can be applied to a burner, which can be applied to a gas stove. The following will describe in detail a burner head according to an embodiment of this utility model with reference to the accompanying drawings.

[0038] To gain a comprehensive understanding of this invention, the burner that works in conjunction with the furnace head will be described first.

[0039] 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.

[0040] See also Figures 2 to 11 The burner head 10 may include an ejector tube 110 and a temperature sensing element 120. The ejector tube 110 may be connected to a heat-conducting element 130. At least a portion of the temperature sensing element 120 may form surface contact with the heat-conducting element 130. The surface contact may be located in an annular region 140 (for ease of understanding). Figure 2 and Figure 3 The annular region 140 is the projection of the annular region 140 onto the upper surface of the heat-conducting element 130. The outer contour of the ejector tube 110 can be constructed as the inner ring 141 of the annular region 140. The outer contour of the ejector tube 110 offset by a distance L can be constructed as the outer ring 142 of the annular region 140, where L ≤ 40 mm. For example, L can be 0 mm, 8 mm, 15 mm, 27 mm, 40 mm, etc., and L is preferably 14.5 mm. To ensure the accuracy of temperature detection, the distance between the surface contact position and the outer contour of the ejector tube 110 should not exceed 40 mm. It should be understood that when L is 0 mm, the surface contact position is located on the outer contour of the ejector tube 110, and at this time, the temperature sensing element 120 and the outer wall surface of the ejector tube 110 can directly form surface contact.

[0041] Based on the number of ejector tubes 110, burners 1 can generally be classified into single-ring burners, double-ring burners, and triple-ring burners. In some cases with special requirements or applications in special scenarios, burners 1 may also have more than three ejector tubes 110, that is, flames with more than three rings. For a single-ring burner, there is only one ejector tube 110, and the heat-conducting element 130 can be connected to this single ejector tube. For a double-ring burner, there are two ejector tubes 110, typically including an inner ring ejector tube and an outer ring ejector tube. In this case, the heat-conducting element 130 can be connected to the inner ring ejector tube, or it can also be connected to the outer ring ejector tube, or it can be connected to both the inner and outer ring ejector tubes simultaneously. For a triple-ring burner, there are three ejector tubes 110, typically including an inner ring ejector tube, a middle ring ejector tube, and an outer ring ejector tube. In this case, the heat-conducting element 130 can be connected to at least one of the inner ring ejector tube, the middle ring ejector tube, or the outer ring ejector tube. (See also...) Figures 2 to 10 The heat-conducting element 130 can be disposed on the inner ring ejector tube. It should be understood that when the pot is placed on the burner 1, 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 ejector tube is closer to the center of the burner 1, and its temperature better reflects the temperature of the pot bottom. Therefore, connecting the heat-conducting element 130 to the inner ring ejector tube allows the heat-conducting element 130 to more accurately reflect the temperature of the pot bottom. In embodiments not shown, the heat-conducting element 130 can also be disposed on ejector tubes 110 other than the inner ring ejector tube.

[0042] It should be understood that in this embodiment of the invention, the temperature sensing element 120 indirectly detects the temperature of the pot bottom by detecting the temperature of the heat-conducting element 130. To ensure the accuracy of temperature detection, the heat-conducting element 130 can be made of a heat-conducting material, such as metal or other materials with good heat transfer properties. The ejector tube 110 can also be made of a heat-conducting material, such as metal or other materials with good heat transfer properties. The heat-conducting element 130 and the ejector tube 110 can be made of the same material, such as stainless steel, thus forming a stainless steel assembly.

[0043] In this invention, at least a portion of the temperature sensing element 120 of the burner head 10 forms surface contact with the heat-conducting element 130 connected to the ejector tube 110. When the burner head 10 is used on a stove, since the temperature of the heat-conducting element 130 is related to the temperature of the bottom of the pot, the temperature of the bottom of the pot can be detected by sensing the temperature of the heat-conducting element 130 through the temperature sensing element 120 (i.e., indirectly detecting the temperature of the pot). The temperature sensing element 120 is not affected by the flame, which not only ensures the accuracy and speed of temperature detection, but also ensures that the temperature sensing element 120 will not interfere with the pot even when using a pointed-bottom pot, thus expanding the applicability of the stove. At the same time, within this range, the accuracy and speed of temperature detection are further guaranteed.

[0044] See also Figure 1 and Figure 2 The cross-section of the ejector tube 110 can be annular. The annular region 140 can be constructed as an annular region with the center of the ejector tube 110 as the center, the inner circle 141 having a radius of R1, and the outer circle 142 having a radius of R2. R1 and D can have the following relationship: R1 > 1 / 2D, for example, R1 = 2 / 3D, R1 = D, R1 = 3 / 2D, etc.; R1 and R2 can have the following relationship: R1 < R2 ≤ 60mm, for example, R1 can be 18mm, 38mm, 59mm, etc., and R1 can also be 22mm, 40mm, 60mm, etc. D can be the outer diameter of the ejector tube 110. When R1 and D have this relationship, it is convenient for the temperature sensing element 120 and the heat conducting element 130 to form surface contact, and with R1 and R2 within this range, the accuracy and speed of temperature detection are effectively guaranteed. In one embodiment of this utility model, R1=3 / 5D, which makes it easier for the temperature sensing element 140 to form a surface contact with the bracket 130; R1 is 20mm and R2 is 24mm, which further ensures the accuracy and speed of temperature detection.

[0045] In embodiments not shown, the cross-section of the ejector tube 110 may also be racetrack-shaped, square, etc. Understandably, in this case, the annular region 140 may be constructed as: a racetrack-shaped ring or a square ring with the center of the ejector tube 110 as the geometric center, the inner ring 141 having a size larger than the outer contour of the cross-section of the ejector tube 110, the outer ring 142 having a size less than 60 mm, and the inner ring 141 having a size smaller than the outer ring 142.

[0046] Understandably, when multiple ring burners are used in the burner head 10, the cross-sectional shapes of the multiple ejector tubes 110 may not be consistent.

[0047] See also Figures 2 to 11The burner head 10 may include a support 150 for positioning the ejector tube 110. The support 150 may have a plate-like body 151. The ejector tube 110 may pass through the plate-like body 151. Specifically, the support 150 may also have a foot 152. One end of the foot 152 may be disposed on the plate-like body 151. The end of the foot 152 away from the plate-like body 151 may form a connecting end 1521. (See reference...) Figure 1 When the burner head 10 is used on a gas stove, the connecting end 1521 can be connected to the bottom shell 3 to realize the installation and fixation of the bracket 150, which facilitates the installation of the bracket 150.

[0048] In some embodiments, in conjunction with reference Figure 2 , Figure 5 and Figure 6 The plate-shaped body 151 can form a heat-conducting element 130. The surface contact position can be located on the plate-shaped body 151. This not only facilitates the positioning of the ejector tube 110, but also, since the temperature of the pot bottom above the burner 10 is transferred to the plate-shaped body 151 through the ejector tube 110 when the pot is heated, the temperature of the plate-shaped body 151 is correlated with the temperature of the pot bottom, ensuring the accuracy and speed of temperature detection. Understandably, the temperature sensing element 120 actually indirectly detects the relevant temperature of the pot bottom by detecting the temperature of the plate-shaped body 151. To ensure the accuracy of temperature detection, the plate-shaped body 151 can be made of a material with good thermal conductivity, such as stainless steel.

[0049] Specifically, the plate-shaped body 151 may have a surface to be measured 160. The temperature sensing element 120 may have a contact plane 121. The contact plane 121 may be in contact with the surface to be measured 160. In this way, by the contact plane 121 being in contact with the surface to be measured 160, it is ensured that the temperature sensing element 120 and the heat-conducting element 130 form a surface contact.

[0050] For example, see Figure 5 The surface to be measured 160 can be a part of the upper surface of the plate-shaped body 151. Understandably, the temperature sensing element 120 is entirely disposed above the plate-shaped body 151, that is, the temperature sensing element 120 is disposed on the side of the plate-shaped body 151 closer to the operator. This facilitates the installation of the temperature sensing element 120 and ensures that the temperature sensing element 120 forms surface contact with the plate-shaped body 151.

[0051] For example, in conjunction with reference Figure 2 and Figure 6The surface to be measured 160 can be a portion of the lower surface of the plate-shaped body 151. Understandably, the temperature sensing element 120 is entirely disposed below the plate-shaped body 151, that is, the temperature sensing element 120 is disposed on the side of the plate-shaped body 151 furthest from the cookware. 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 120 is hidden below the plate-shaped body 151, effectively preventing leaked soup or liquid from contacting the temperature sensing element 120 and affecting its detection accuracy and service life.

[0052] In an embodiment not shown, the foot 152 may form a heat-conducting element 130. The surface contact location may be located on the foot 152. Specifically, the foot 152 may have a surface to be measured 160. The temperature sensing element 120 may have a contact plane 121. The contact plane 121 may be in contact with the surface to be measured 160.

[0053] In some embodiments, in conjunction with reference Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 9 and Figure 10 The heat-conducting element 130 and the support 150 can be constructed as two different structures. In this way, if the temperature sensing element 120 malfunctions, the heat-conducting element 130 can be removed from the ejector tube 110 to facilitate the maintenance of the temperature sensing element 120 on the heat-conducting element 130 without having to remove the entire furnace head 10, thus reducing maintenance costs.

[0054] Specifically, see Figure 4 The heat-conducting component 130 may have a sleeve portion 131. The ejector tube 110 may have a mating section 111. The sleeve portion 131 may have a through hole (not shown in the figure). The sleeve portion 131 can be sleeved onto the mating section 111 through the through hole. To ensure connection stability, the sleeve portion 131 can also be connected to the mating section 111 by means of adhesive, welding, or snap-fit. This facilitates the installation of the heat-conducting component 130, and because the temperature of the pot bottom above the burner 10 is transferred to the sleeve portion 131 through the ejector tube 110 when the pot is heated, the temperature of the heat-conducting component 130 is correlated with the temperature of the pot bottom, ensuring accurate and rapid temperature detection.

[0055] Furthermore, in conjunction with reference Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11The outer edge of the sleeve portion 131 can extend into a plate-shaped portion 132. The plate-shaped portion 132 can have a surface to be measured 160. The temperature sensing element 120 can have a contact plane 121. The contact plane 121 can be in contact with the surface to be measured 160. In this way, it is convenient to install the temperature sensing element 120, and since the temperature of the pot bottom above the burner 10 is transferred to the plate-shaped portion 132 through the ejector tube 110 when the pot is heated, the temperature of the plate-shaped portion 132 is correlated with the temperature of the pot bottom, ensuring the accuracy and speed of temperature detection.

[0056] For example, see Figure 7 The heat-conducting element 130 can be disposed above the plate-shaped body 151. The surface to be measured 160 can be a part of the upper surface of the plate-shaped portion 132. This facilitates the installation of the temperature-sensing element 120.

[0057] For example, see Figure 8 The heat-conducting element 130 can be disposed above the plate-shaped body 151. The surface to be measured 160 can be a part of the upper surface of the plate-shaped portion 132. Understandably, the temperature-sensing element 120 is disposed entirely below the heat-conducting element 130, that is, the temperature-sensing element 120 is disposed on the side of the heat-conducting element 130 away from the pot, effectively preventing leaked soup from contacting the temperature-sensing element 120 and affecting the accuracy and service life of the temperature-sensing element 120.

[0058] For example, see Figure 9 The heat-conducting element 130 can be disposed below the plate-shaped body 151. The surface to be measured 160 can be a part of the upper surface of the plate-shaped portion 132. In this way, the plate-shaped body 151 can shield the heat-conducting element 130, effectively preventing leaked soup from contacting the temperature sensing element 120 and affecting the accuracy and service life of the temperature sensing element 120.

[0059] For example, see Figure 10 The heat-conducting element 130 can be disposed below the plate-shaped body 151. The surface to be measured 160 can be a part of the lower surface of the plate-shaped portion 132. In this way, the plate-shaped body 151 can shield the heat-conducting element 130, effectively preventing leaked soup from contacting the temperature sensing element 120 and affecting the accuracy and service life of the temperature sensing element 120.

[0060] In an embodiment not shown, the heat-conducting element 130 may have a protrusion extending beyond its upper surface. A temperature-sensing element 120 may be disposed on the protrusion. Specifically, the protrusion may enclose a receiving cavity having a lower opening. At least a portion of the inner wall surface of the receiving cavity may be configured as the surface to be measured 160; or, at least a portion of the outer wall surface of the receiving cavity may be configured as the surface to be measured 160.

[0061] In an embodiment not shown, the heat-conducting element 130 may have a recessed groove in the lower surface of the heat-conducting element 130. The temperature-sensing element 120 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 160; or, at least a portion of the outer wall surface of the recessed groove may be configured as the surface to be measured 160.

[0062] Specifically, the portion of the surface to be measured 160 that contacts the contact plane 121 can have a contact area S. Understandably, the size of the contact area S depends on the smaller area of ​​the surface to be measured 160 and the contact plane 121. In some embodiments, the area of ​​the surface to be measured 160 is typically larger than the area of ​​the contact plane 121 to facilitate the mounting of the temperature sensing element 120. In this case, the contact area S is the area of ​​the contact plane 121. The contact area S can be 30 mm². 2 ~120mm 2 For example, the bonding area S can be 30mm. 2 80mm 2 120mm 2 The contact area S is within this range, allowing the contact plane 121 to fit tightly and fully against the surface to be measured 160. In one embodiment of this invention, the contact area S is 68 mm². 2 At this point, the contact plane 121 can be better fitted and fully contacted with the surface to be tested 160, and the problem of excessive contact area S occupying too much space can be avoided.

[0063] See also Figures 5 to 11 The temperature sensing element 120 may have a sheet-like portion 122. A contact plane 121 may be formed on the sheet-like portion 122. This facilitates surface contact between the temperature sensing element 120 and the heat-conducting element 130, ensuring the accuracy and speed of temperature detection. Furthermore, the sheet-like portion 122 makes it easier to install the temperature sensing element 120.

[0064] See again Figures 5 to 11 The sheet-like portion 122 can have a thickness M, which can be 0.4mm to 1mm, such as 0.4mm, 0.5mm, or 1mm. Within this thickness range, the sheet-like portion 122 is more sensitive to temperature changes, ensuring the accuracy and speed of temperature detection. In one embodiment of this invention, the thickness M is 0.7mm, which effectively ensures the accuracy and speed of temperature detection by the sheet-like portion 122.

[0065] In the above embodiments, the sheet-like portion 122 can be tightly fitted to the surface to be tested 160 via fasteners 170. This ensures the stability of the connection between the temperature sensing element 120 and the heat-conducting element 130, and also guarantees good surface contact. Specifically, a first mounting hole (not shown in the figure) can be provided on the surface to be tested 160. A second mounting hole 1221 can be provided on the sheet-like portion 122. Fasteners 170 pass through the first mounting hole and the second mounting hole 1221 in sequence to fix the sheet-like portion 122 to the plate-like body 151. Fasteners 170 can be screws, bolts, etc. In embodiments not shown, the temperature sensing element 120 can also be connected to the heat-conducting element 130 by other means, such as welding, riveting, bonding, or snap-fit ​​connection.

[0066] In some embodiments, the sheet-like portion 122 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 121 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 122 from rusting, thereby extending the service life of the temperature sensing element 120. 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 122 from rusting. Of course, the alloy material layer and the electroplated layer may also be made of other materials.

[0067] See also Figures 5 to 11 The temperature sensing element 120 may have a sheet-like portion 122 and a lead portion 123. The lead portion 123 may include a probe body 1231 connected to the sheet-like portion 122. The probe body 1231 may contain a device (hereinafter referred to as a conversion device) that can convert temperature information into other output or judgment 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 is dry-burned, the temperature of the cookware will rise rapidly due to insufficient medium to absorb heat, and the temperature of the heat-conducting element 130 will also rise rapidly, causing the temperature change rate of the negative temperature coefficient thermistor to increase sharply.

[0068] 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 burner 1, improving its reliability.

[0069] In some embodiments, the probe body 1231 may contain a thermally conductive medium. This allows the temperature of the heat-conducting element 130 to be transferred to the conversion device more effectively and accurately, thereby further improving the accuracy and speed of temperature detection. Specifically, the thermally conductive medium can be a thermally conductive resin. Thermally conductive resin not only has high thermal conductivity but also stability. Filling the probe body 1231 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.

[0070] Furthermore, in conjunction with reference Figures 5 to 11 The lead portion 123 may further include a signal transmission line 1232 connected to the end of the probe body 1231 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 120, but also prevents high temperatures from affecting the signal transmission line 1232, as the signal transmission line 1232 is relatively far from the sheet portion 122. Specifically, the signal transmission line 1232 may be covered with a protective sleeve. The protective sleeve further prevents high temperatures from affecting the signal transmission line 1232 and also avoids the problem of the signal transmission line 1232 being easily damaged when exposed.

[0071] 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 123 may be connected to the end of the plate-shaped portion 122 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 123 is reduced, the lead wire portion 123 is protected, the service life of the temperature sensing element 120 is extended, and the accuracy of the temperature sensing element 120 is ensured.

[0072] In an embodiment not shown, the end of the signal transmission line 1232 furthest from the probe body 1231 can be connected to a controller. The temperature information collected by the plate-shaped portion 122 of the temperature sensing element 120 is converted into a signal by a conversion device and transmitted to the controller via the signal transmission line 1232. The controller can control the operating state of the burner 11 based on this signal. When the controller determines, based on this signal, that the burner 11 is in a state of 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 11 and avoid safety hazards.

[0073] In the above embodiments, the sheet-like portion 122 has a contact plane 121. The temperature sensing element 120 can be tightly fitted with the surface to be measured 160 through the sheet-like portion 122 to form a surface contact. In embodiments not shown, the sheet-like portion 122 can be replaced with a linear body. The linear body can have a contact plane 121. The temperature sensing element 120 can be disposed on the surface to be measured 160 by means of a linear body and form a line contact with the heat-conducting element 130. It should be understood that the surface contact method enhances the connection stability between the temperature sensing element 120 and the heat-conducting element 130 compared to the line contact method. Specifically, refer to the reference Figure 5 and Figure 6 In the case where the plate-shaped body 151 forms the heat-conducting element 130, the linear body can form line contact with either the upper surface or the lower surface of the plate-shaped body 151. (See also...) Figure 7 and Figure 8 When the heat-conducting element 130 and the support 150 have different structures, and the heat-conducting element 130 is located above the support 150, the linear body can form a line contact with the upper surface of the heat-conducting element 130 or with the lower surface of the heat-conducting element 130.

[0074] According to another aspect of this utility model, a burner 1 is provided, including a flame distribution seat 20, a flame cap 30, and a burner head 10 as described above. The flame cap 30 and the flame distribution seat 20 can be closed to form a mixing chamber 40. The mixing chamber 40 can be connected to an injector tube 110. Since the burner head 10 described above has the aforementioned beneficial effects, the burner 1 including the burner head 10 described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0075] According to another aspect of this utility model, a stove is provided, including a bottom shell 3, a panel 2, and a burner 1 as described above. The bottom shell 3 can form a mounting cavity with a mounting opening. The panel 2 can cover the mounting opening. The panel 2 can be provided with a through hole. The burner 1 can pass through the through hole, with part of the burner 1 located inside the mounting cavity and part of the burner 1 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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, It includes an ejector tube and a temperature sensing element. The ejector tube is connected to a heat-conducting element. At least a portion of the temperature sensing element forms a surface contact with the heat-conducting element. The surface contact is located within an annular region. The outer contour of the ejector tube forms the inner circle of the annular region. The outer contour of the ejector tube is offset by a distance L to form the outer circle of the annular region, where L ≤ 40 mm.

2. The burner head according to claim 1, characterized in that, The cross-section of the ejector tube is annular, and the annular region is constructed as follows: with the center of the ejector tube as the center, the inner radius is R1 and the outer radius is R2, where R1 > 1 / 2D, R1 < R2 ≤ 60mm, and D is the outer diameter of the ejector tube.

3. The burner head according to claim 1, characterized in that, The furnace head includes a bracket for positioning the ejector tube. The bracket has a plate-shaped body, through which the ejector tube passes. The plate-shaped body forms the heat-conducting element, and the surface contact position is located on the plate-shaped body.

4. The burner head according to claim 3, characterized in that, The plate-shaped body 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.

5. The burner head according to claim 1, characterized in that, The furnace head includes a bracket for positioning the ejector tube. The bracket has a plate-shaped body, through which the ejector tube passes. The heat-conducting element is disposed above the plate-shaped body; or, the heat-conducting element is disposed below the plate-shaped body.

6. The burner head according to claim 5, characterized in that, The heat-conducting component has a sleeve portion, the ejector tube has a mating section, the sleeve portion is provided with a through hole, and the sleeve portion is sleeved onto the mating section through the through hole.

7. The burner head according to claim 6, characterized in that, The outer edge of the sleeve extends into a plate-shaped portion, the plate-shaped portion having a surface to be measured, and the temperature sensing element having a contact plane, the contact plane being in contact with the surface to be measured.

8. The burner head according to claim 4 or 7, characterized in that, The temperature sensing element has a sheet-like portion, and the contact plane is formed on the sheet-like portion.

9. The burner head according to claim 8, characterized in that, The sheet-like portion has a thickness M, which is 0.4 mm to 1 mm.

10. The burner head according to claim 8, characterized in that, The sheet-like portion has an alloy material layer and an electroplated layer, the electroplated layer being formed on the surface of the alloy material layer, and the contact plane being formed on the outer surface of the electroplated layer away from the alloy material layer.

11. The burner head according to claim 8, characterized in that, The portion of the surface to be tested that is in contact with the contact plane has a contact area S, and the contact area S is 30 mm. 2 ~120mm 2 .

12. A burner, characterized in that, It includes a flame distribution base, a flame cover, and a burner head as described in any one of claims 1-11, wherein the flame cover and the flame distribution base enclose a mixing chamber, and the mixing chamber is connected to the ejector tube.

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 an open mounting cavity, the panel covers the opening, the panel has a through hole, the burner passes through the through hole, and a portion of the burner is located inside the mounting cavity and a portion of the burner is located outside the mounting cavity.

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