Burner, burner and stove

Abstract

The utility model provides a furnace end, burner and stove, including inner ring ejection tube, outer ring ejection tube, support and temperature sensing piece, outer ring ejection tube and inner ring ejection tube are arranged at interval, outer ring ejection tube is located through support, and the temperature sensing piece forms surface contact with support at least part, the position of surface contact is located in the annular area, and the temperature sensing piece is located in the annular area. The outer contour line of the outer ring injection pipe forms the inner ring of the annular area, the outer contour line of the outer ring 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. In the utility model, as the temperature of the bracket is related to the temperature of the pot bottom, the detection of the temperature of the pot bottom can be realized by sensing the temperature of the bracket through the temperature sensing piece, and the temperature sensing piece is not influenced by flame, so that 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 inner ring ejector tube, an outer ring ejector tube, a support, and a temperature sensing element. The outer ring ejector tube is spaced apart from the inner ring ejector tube, and the outer ring ejector tube is positioned by the support. At least part of the temperature sensing element forms a surface contact with the support, and the surface contact location is within the annular area. The outer contour line of the outer ring ejector tube constitutes the inner ring of the annular area, and the outer contour line of the outer ring ejector tube is offset by a distance L to constitute the outer ring of the annular area, where L≤40mm.

[0006] In this invention, at least a portion of the temperature sensing element forms surface contact with the bracket of the positioning outer ring ejector tube. When the burner is used on a gas stove, since the temperature of the bracket is related to the temperature of the pot bottom, the temperature of the pot bottom can be detected by sensing the temperature of the bracket through the temperature sensing element (i.e., indirectly detecting the temperature of the pot). The temperature sensing element 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 will not interfere with the pot even when using a pointed-bottom pot, thus expanding the applicability of the stove.

[0007] For example, the cross-section of the outer ring ejector is annular, and the annular region is constructed as follows: with the center of the outer ring ejector 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 outer ring ejector. When R1 and D have this relationship, it is convenient for the temperature sensing element to form a surface contact with the support, and the setting of R1 and R2 within this range effectively ensures the accuracy and speed of temperature detection.

[0008] For example, the support has a plate-shaped body and legs, with an outer ring ejector tube passing through the plate-shaped body. One end of the leg is mounted on the plate-shaped body, and the end of the leg away from the plate-shaped body forms a connecting end. This not only facilitates the positioning of the outer ring ejector tube but also simplifies the support structure and makes it easy to install and fix the support.

[0009] For example, the surface contact location is situated on the plate-shaped body. This facilitates surface contact between the temperature sensing element and the support, and since the temperature of the pot bottom above the burner is transferred to the plate-shaped body through the outer ring ejector tube when the pot is heated, the temperature of the plate-shaped body is correlated with the temperature of the pot bottom, ensuring the accuracy and speed of temperature detection.

[0010] 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 support.

[0011] For example, the surface contact point is located on the support leg. In this way, when the burner is used on a gas stove, the internal space of the stove can be fully utilized.

[0012] For example, the support leg 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 support leg.

[0013] For example, along the length of the support, the left and right sides of the plate-shaped body are bent to form legs. This facilitates the processing and formation of the legs.

[0014] For example, in the width direction of the support, the front and rear sides of the plate-shaped body are bent to form legs. This facilitates the processing and formation of the legs.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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 With the contact area S set within this range, the contact plane of the temperature sensing element can fully contact the bracket, and the contact plane can also be tightly fitted to the surface to be measured.

[0019] 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 inner ring ejector tube and an outer ring ejector 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.

[0020] 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 an installation cavity with an opening, the panel covers the opening, and the panel has a through hole through which the burner passes, with part of the burner located inside the installation cavity and part of the burner located outside the installation cavity. Since the burner described above has the aforementioned beneficial effects, the stove including the burner described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0021] 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.

[0022] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0023] 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,

[0024] Figure 1 for Figure 1 A perspective view of a stove as an exemplary embodiment of the present invention;

[0025] Figure 2 A bottom view of the stove head, which is an exemplary embodiment of the present invention (a portion of the lower surface of the plate-shaped body forms the surface to be measured);

[0026] Figure 3 A partial structural diagram of the burner head, which is an exemplary embodiment of the present invention;

[0027] Figure 4 A cross-sectional view of a burner (a portion of the upper surface of the plate-shaped body forms the surface to be measured) as an exemplary embodiment of the present invention;

[0028] Figure 5 A cross-sectional view of a burner (a portion of the lower surface of the plate-shaped body forms the surface to be measured) as an exemplary embodiment of the present invention;

[0029] Figure 6 A cross-sectional view of the burner head as an exemplary embodiment of the present invention (a portion of the inner side of the support leg forms the surface to be measured);

[0030] Figure 7 A cross-sectional view of the stove head (a portion of the outer side of the support leg forms the surface to be measured) as an exemplary embodiment of the present invention;

[0031] Figure 8 This is a perspective view of a temperature sensing element as an exemplary embodiment of the present invention.

[0032] The above figures include the following reference numerals:

[0033] 1. Burner; 10. Furnace head; 110. Inner ring ejector tube; 120. Outer ring ejector tube; 121. Ejector body; 130. Support; 131. Plate-shaped body; 132. Support leg; 1321. Connecting end; 133. Surface to be measured; 140. Temperature sensing element; 141. Contact plane; 142. Sheet-shaped part; 1421. Second mounting hole; 143. Lead wire part; 1431. Probe body; 1432. Signal transmission line; 150. Annular area; 151. Inner ring; 152. Outer ring; 160. Fastener; 20. Flame holder; 30. Flame cap; 40. Mixing chamber; 2. Panel; 3. Bottom shell. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] To gain a comprehensive understanding of this invention, the burner that works in conjunction with the furnace head will be described first.

[0038] 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.

[0039] See also Figures 2 to 8 The burner head 10 may include an inner ring ejector tube 110, an outer ring ejector tube 120, a bracket 130, and a temperature sensing element 140. The outer ring ejector tube 120 may be spaced apart from the inner ring ejector tube 110, and the outer ring ejector tube 120 may be positioned by the bracket 130. At least a portion of the temperature sensing element 140 may form surface contact with the bracket 130. The surface contact location may be within the annular region 150 (for ease of understanding). Figure 3The annular region 150 is the projection of the annular region 150 onto the upper surface of the plate-shaped body 131. The outer contour of the outer ring ejector tube 120 can be constructed as the inner ring 151 of the annular region 150. The outer contour of the outer ring ejector tube 120 is offset by a distance L to construct the outer ring 152 of the annular region 150, 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 outer ring ejector tube 120 does 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 outer ring ejector tube 120, and at this time, the temperature sensing element 140 and the outer wall surface of the outer ring ejector tube 120 can directly form surface contact.

[0040] In this invention, at least a portion of the temperature sensing element 140 of the burner head 10 forms surface contact with the bracket 130 of the positioning outer ring ejector tube 120. When the burner head 10 is used on a gas stove, since the temperature of the bracket 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 bracket 130 through the temperature sensing element 140 (i.e., indirectly detecting the temperature of the pot). The temperature sensing element 140 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 140 will not interfere with the pot even when using a pointed-bottom pot, thus expanding the applicability of the stove. At the same time, the L is set within this range, which further ensures the accuracy and speed of temperature detection.

[0041] 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 outer ring ejector tube 120 can also be made of a thermally conductive material, such as metal or other materials with good thermal conductivity. The support 130 and the outer ring ejector tube 120 can be made of the same material, such as stainless steel, thus forming a stainless steel assembly.

[0042] See also Figure 2 and Figure 3The cross-section of the outer ring ejector tube 120 can be annular. The annular region 150 can be constructed as an annular region with the center of the outer ring ejector tube 120 as the center, the radius of the inner ring 151 being R1, and the radius of the outer ring 152 being 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 outer ring ejector tube 120. When R1 and D have this relationship, it is convenient for the temperature sensing element 140 to form a surface contact with the support 130, and the setting of R1 and R2 within this range effectively ensures the accuracy and speed of temperature detection. 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.

[0043] In an embodiment not shown, the cross-section of the outer ring ejector 120 can be racetrack-shaped. Understandably, in this case, the annular region 150 can be constructed as a racetrack-shaped ring with the center of the outer ring ejector 120 as its geometric center, with the inner ring 151 having a size larger than the outer contour of the cross-section of the outer ring ejector 120, the outer ring 152 having a size less than 60 mm, and the inner ring 151 having a size smaller than the outer ring 152.

[0044] Furthermore, the cross-section of the outer ring ejector 120 can also be other shapes, such as square or polygonal. In this case, the annular region 150 can also be other shapes.

[0045] In an embodiment not shown, the inner ring ejector tube 110 can also be positioned by the bracket 130, that is, the inner ring ejector tube 110 and the outer ring ejector tube 120 can be jointly inserted into the bracket 130.

[0046] In an embodiment not shown, the inner ring ejector tube 110 can also be positioned by a different bracket than the bracket 130, that is, the inner ring ejector tube 110 and the outer ring ejector tube 120 can be positioned by different components.

[0047] See also Figures 2 to 7 The support 130 may have a plate-shaped body 131 and a foot 132. An outer ring ejector tube 120 may pass through the plate-shaped body 131. One end of the foot 132 may be disposed on the plate-shaped body 131. The end of the foot 132 away from the plate-shaped body 131 may form a connecting end 1321. (See reference...) Figure 1When the burner head 10 is used on a gas stove, the connecting end 1321 can be connected to the bottom shell 3 to realize the installation and fixation of the bracket 130, which facilitates the installation of the bracket 130. In this way, it is not only easy to position the outer ring injector tube 120, but also the bracket 130 has a simple structure and is easy to install and fix.

[0048] In some embodiments, in conjunction with reference Figures 2 to 5 The surface contact point can be located on the plate-shaped body 131. This facilitates the surface contact between the temperature sensing element 140 and the support 130. Furthermore, since the temperature of the pot bottom above the burner 10 is transferred to the plate-shaped body 131 through the outer ring ejector tube 120 when the pot is being heated, the temperature of the plate-shaped body 131 is correlated with the temperature of the pot bottom, ensuring the accuracy and speed of temperature detection.

[0049] Specifically, the plate-shaped body 131 may have a surface to be measured 133. 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 133. In this way, by the contact plane 141 being in contact with the surface to be measured 133, the temperature sensing element 140 and the support 130 are in surface contact.

[0050] For example, see Figure 4 The plate-shaped body 131 may have an upper surface. The surface to be measured 133 may be a part of the upper surface. Understandably, the temperature sensing element 140 is entirely disposed above the plate-shaped body 131, that is, the temperature sensing element 140 is disposed on the side of the plate-shaped body 131 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] For example, in conjunction with reference Figure 2 , Figure 3 and Figure 5 The plate-shaped body 131 may have a lower surface. The surface to be measured 133 may be a part of the lower surface. Understandably, the temperature sensing element 140 is entirely disposed below the plate-shaped body 131, that is, the temperature sensing element 140 is disposed on the side of the plate-shaped body 131 away 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 131, effectively preventing leaked soup from contacting the temperature sensing element 140 and affecting the accuracy and service life of the temperature sensing element 140.

[0052] In some embodiments, in conjunction with reference Figure 6 and Figure 7 The contact point can be located on the support leg 132. In this way, when the burner head 10 is used on a gas stove, the internal space of the stove can be fully utilized.

[0053] Specifically, the support leg 132 may have a surface 133 to be measured. The temperature sensing element 140 may have a contact plane 141. The contact plane 141 may be in contact with the surface 133 to be measured. In this way, by the contact plane 141 being in contact with the surface 133 to be measured, the temperature sensing element 140 and the support leg 132 are in surface contact.

[0054] For example, in the length direction of the bracket 130 (i.e. Figure 2 In the X direction, the left and right sides of the plate-shaped body 131 can be bent to form supports 132. This facilitates the processing and formation of the supports 132. The test surface 133 can be located on the support 132 on the left side of the plate-shaped body. The test surface 133 can be a part of the inner side of the support 132 near the outer ring ejector tube 120.

[0055] For example, in the length direction of the bracket 130 (i.e. Figure 2 In the X direction, the left and right sides of the plate-shaped body 131 can be bent to form supports 132. This facilitates the processing and formation of the supports 132. The position of the surface to be measured 133 can be located on the support 132 on the left side of the plate-shaped body. The surface to be measured 133 can be a part of the outer side of the support 132 away from the outer ring ejector tube 120.

[0056] For example, see Figure 6 In the length direction of the bracket 130 (i.e. Figure 2 In the X direction, the left and right sides of the plate-shaped body 131 can be bent to form supports 132. This facilitates the processing and formation of the supports 132. The test surface 133 can be located on the support 132 on the right side of the plate-shaped body. The test surface 133 can be a part of the inner side of the support 132 near the outer ring ejector tube 120.

[0057] For example, see Figure 7 In the length direction of the bracket 130 (i.e. Figure 2 In the X direction, the left and right sides of the plate-shaped body 131 can be bent to form supports 132. This facilitates the processing and formation of the supports 132. The measured surface 133 can be located on the support 132 on the right side of the plate-shaped body. The measured surface 133 can be a part of the outer side of the support 132 away from the outer ring ejector tube 120.

[0058] For example, in the width direction of the bracket 130 (i.e. Figure 2 In the Y direction, the front and rear sides of the plate-shaped body 131 can also be bent to form supports 132. This facilitates the processing and formation of the supports 132. The test surface 133 can be located on the support 132 on the front side of the plate-shaped body. The test surface 133 can be a part of the inner side of the support 132 near the outer ring ejector tube 120.

[0059] For example, in the width direction of the bracket 130 (i.e. Figure 2 In the Y direction, the front and rear sides of the plate-shaped body 131 can be bent to form supports 132. This facilitates the processing and formation of the supports 132. The surface to be measured 133 can be located on the support 132 on the front side of the plate-shaped body. The surface to be measured 133 can be a part of the outer side of the support 132 away from the outer ring ejector tube 120.

[0060] For example, in the width direction of the bracket 130 (i.e. Figure 2 In the Y direction, the front and rear sides of the plate-shaped body 131 can be bent to form supports 132. This facilitates the processing and formation of the supports 132. The surface to be measured 133 can be located on the support 132 on the rear side of the plate-shaped body. The surface to be measured 133 can be a part of the inner side of the support 132 near the outer ring ejector tube 120.

[0061] For example, in the width direction of the bracket 130 (i.e. Figure 2 In the Y direction, the front and rear sides of the plate-shaped body 131 can be bent to form supports 132. This facilitates the processing and formation of the supports 132. The measured surface 133 can be located on the support 132 on the rear side of the plate-shaped body. The measured surface 133 can be a part of the outer side of the support 132 away from the outer ring ejector tube 120.

[0062] In an embodiment not shown, the support 130 may have a protrusion extending beyond the outer side of the plate-like body 131 or the leg 132 away from the outer ring ejector tube 120. 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 133; or, at least a portion of the outer wall surface of the receiving cavity may be configured as the surface to be measured 133.

[0063] In an embodiment not shown, the support 130 may have a recessed groove in the inner side of the plate-like body 131 or the foot 132 near the outer ring ejector tube 120. A temperature sensing element 140 may be disposed in 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 133; or, at least a portion of the outer wall surface of the recessed groove may be configured as the surface to be measured 133.

[0064] Specifically, the portion of the surface to be measured 133 that contacts the contact plane 141 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 133 and the contact plane 141. In some embodiments, the area of ​​the surface to be measured 133 is typically larger than the area of ​​the contact plane 141 to facilitate the mounting of the temperature sensing element 140. In this case, the contact area S is the area of ​​the contact plane 141. 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 set within this range, allowing the contact plane 141 of the temperature sensing element 140 to be in close and full contact with the surface to be measured 133. In one embodiment of this invention, the contact area S is 68 mm². 2 At this time, the contact plane 141 of the temperature sensing element 140 can be better fitted and fully contacted with the surface to be measured 133, and the problem of excessive contact area S occupying too much space is avoided.

[0065] See also Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 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.

[0066] See Figure 8 The sheet-like portion 142 may have a thickness M, which can be from 0.4 mm to 1 mm, such as 0.4 mm, 0.5 mm, or 1 mm. With the thickness M set within this range, the sheet-like portion 142 becomes more sensitive to temperature changes, ensuring the accuracy and speed of temperature detection. In one embodiment of this invention, the thickness M is 0.7 mm, which effectively guarantees the accuracy and speed of temperature detection by the sheet-like portion 142.

[0067] In the above embodiments, the sheet-like portion 142 can be tightly fitted to the surface 133 to be measured by fasteners 160. This ensures the stability of the connection between the temperature sensing element 140 and the support 130, and also guarantees good surface contact. Specifically, a first mounting hole (not shown in the figure) can be provided on the surface 133 to be measured. A second mounting hole 1421 can be provided on the sheet-like portion 142. Fasteners 160 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 131. Fasteners 160 can be screws, bolts, etc. In embodiments not shown, the temperature sensing element 140 can also be connected to the support 130 by other means, such as welding, riveting, gluing, or snap-fit ​​connection.

[0068] 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.

[0069] See also Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 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.

[0070] 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.

[0071] 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.

[0072] Furthermore, in conjunction with reference Figures 2 to 8 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.

[0073] Specifically, the outer ring ejector tube 120 may have an ejector body 121. The ejector body 121 may be connected to a gas pipe (not shown in the figure). Combustible gas can enter the ejector body 121 through the gas pipe, and then be ejected from the end of the outer ring ejector tube 120 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 121. In this way, the influence of the heat generated by combustion near the outer ring ejector tube 120 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.

[0074] 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 the conversion device and transmitted to the controller via the signal transmission line 1432. The controller can control the operating state of the burner 1 based on this signal. When the controller determines, based on this signal, that the burner 1 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 1 and avoid safety hazards.

[0075] In the above embodiments, the temperature sensing element 140 is tightly fitted to the surface to be measured 133 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 133 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... Figure 4 and Figure 5 When the surface to be measured 133 is disposed on the plate-shaped body 131, the linear body can form line contact with the upper surface of the plate-shaped body 131 or with the lower surface of the plate-shaped body 131. (See also...) Figure 6 and Figure 7 When the surface to be tested 133 is set on the support leg 132, the linear body can form a line contact with the inner side of the support leg 132 located on the right side of the plate-shaped body 131, or it can form a line contact with the outer side of the support leg 132 located on the right side of the plate-shaped body 131.

[0076] 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 can be formed with the flame distribution seat 20 to create a mixing chamber 40. The mixing chamber 40 can be connected to an inner ring ejector tube 110 and an outer ring ejector tube 120. 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.

[0077] According to another aspect of the present invention, 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 an opening. The panel 2 can cover the 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stove head, characterized in that, The device includes an inner ring ejector tube, an outer ring ejector tube, a support, and a temperature sensing element. The outer ring ejector tube is spaced apart from the inner ring ejector tube, and the outer ring ejector tube is positioned by the support. At least a portion of the temperature sensing element forms a surface contact with the support, and the surface contact location is within an annular region. The outer contour line of the outer ring ejector tube forms the inner ring of the annular region, and the outer contour line of the outer ring ejector tube is offset by a distance L to form the outer ring of the annular region, where L ≤ 40 mm.

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

3. The burner head according to claim 1, characterized in that, The support has a plate-shaped body and a support leg. The outer ring ejector tube passes through the plate-shaped body. One end of the support leg is disposed on the plate-shaped body, and the end of the support leg away from the plate-shaped body forms a connecting end.

4. The burner head according to claim 3, characterized in that, The surface contact location is situated on the plate-shaped body.

5. The burner head according to claim 4, 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.

6. The burner head according to claim 3, characterized in that, The surface contact point is located on the support leg.

7. The burner head according to claim 6, characterized in that, The support leg 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 head according to claim 3, characterized in that, Along the length of the bracket, the left and right sides of the plate-shaped body are bent to form the support legs.

9. The burner head according to claim 3, characterized in that, In the width direction of the bracket, the front and rear sides of the plate-shaped body are bent to form the support legs.

10. The burner head according to claim 5 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.

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

12. The burner head according to claim 10, 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.

13. The burner head according to claim 10, 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 .

14. 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 1-13, wherein the flame cover and the flame distribution base enclose a mixing chamber, and the mixing chamber is connected to the inner ring ejector tube and the outer ring ejector tube.

15. A stove, characterized in that, The device includes a bottom shell, a panel, and a burner as described in claim 14. 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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