Burner, burner and stove

Abstract

The utility model provides a furnace end, burner and stove, the furnace end includes liquid holding tray, ejection tube and is used for sensing the temperature sensing piece of ejection tube temperature, ejection tube passes through liquid holding tray, the temperature sensing piece is located below liquid holding tray, liquid holding tray has first tray portion and second tray portion, second tray portion is lower than first tray portion, the second tray portion is lower than first tray portion. The first disc portion is closer to the center of the liquid containing disc than the second disc portion, the temperature sensing piece is provided with a temperature sensing face, the orthographic projection of the temperature sensing face towards the plane where the first disc portion is located falls in the first disc portion, and the temperature sensing face and the lower surface of the first disc portion are spaced. On one hand, interference between the temperature sensing piece and the bottom of the cookware is avoided; and on the other hand, the accuracy of the detection result of the temperature sensing piece is ensured.

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 their safety are also rising. Gas stoves are typically equipped with a drip tray and an external temperature sensor. The drip tray is used to catch liquids that splash during cooking. It has a through hole through which the external temperature sensor protrudes, allowing it to contact the bottom of the pot to detect its temperature. If the bottom temperature of the pot exceeds a preset temperature, the stove will automatically shut off to prevent accidents. Simultaneously, if the stove accidentally shuts off or if a pot is left unattended on high heat for an extended period, the gas supply can be cut off immediately based on the external temperature sensor's readings to prevent accidents.

[0003] However, since the external temperature sensor needs to be in contact with the bottom of the pot, only a flat-bottomed pan can be used for cooking to avoid interference with the external temperature sensor. In addition, the external temperature sensor is easily affected by the flame, which may cause it to fail to accurately detect the temperature of the bottom of the pot, resulting in the stove malfunctioning and shutting off. Finally, since the external temperature sensor passes through the through hole in the liquid tray, the temperature of the liquid tray itself and the temperature of the liquid it holds may affect the detection results of the external temperature sensor. Utility Model Content

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

[0005] The burner head includes a liquid tray, an ejector tube, and a temperature sensing element for sensing the temperature of the ejector tube. The ejector tube passes through the liquid tray, and the temperature sensing element is located below the liquid tray. The liquid tray has a first plate portion and a second plate portion. The second plate portion is lower than the first plate portion, and the first plate portion is closer to the center of the liquid tray than the second plate portion. The temperature sensing element has a temperature sensing surface. The orthographic projection of the temperature sensing surface onto the plane where the first plate portion is located falls within the first plate portion, and the temperature sensing surface is spaced apart from the lower surface of the first plate portion. The burner head of this invention, on the one hand, is equipped with a temperature sensing element for sensing the temperature of the ejector tube. The temperature sensing element is located below the liquid-holding tray. When this burner head is applied to a stove, since the temperature of the ejector tube is related to the temperature of the pot bottom, the temperature of the pot bottom can be detected by sensing the temperature of the ejector tube through the temperature sensing element (i.e., indirect detection of the pot temperature). This not only prevents the temperature sensing element from being affected by the flame, ensuring the accuracy of temperature detection, but also avoids interference between the temperature sensing element and the pot, thereby expanding the types of pots that can be used on the stove and broadening the applicability of the stove. On the other hand, since the second tray is lower than the first... The liquid on the first plate can flow to the second plate, reducing the influence of the liquid temperature on the first plate on the temperature sensing element. Furthermore, the temperature sensing surface is spaced apart from the lower surface of the first plate, preventing the temperature of the first plate or the temperature of the liquid remaining on it from affecting the detection results. This also creates a first cavity between the temperature sensing surface and the lower surface of the first plate, allowing heat generated by the ejector tube to dissipate into and outward through this cavity, preventing excessive heat concentration that could affect the measurement results and ensuring the accuracy of the temperature sensing element's detection.

[0006] For example, a first distance H1 is provided between the temperature sensing surface and the lower surface of the first plate, wherein the first distance H1 is 5mm to 12mm. This arrangement not only avoids the temperature of the first plate or the temperature of the liquid remaining on the first plate from affecting the detection result of the temperature sensing element due to the first plate being too close to the temperature sensing surface; but also allows a first cavity to be formed between the temperature sensing surface and the lower surface of the first plate, so that the heat generated by the ejector tube can be dissipated into the first cavity and dissipated outward through the first cavity.

[0007] For example, a second distance H2 is provided between the temperature-sensing surface and the lower surface of the second disk, and the second distance H2 is 3mm to 8mm. With this arrangement, the second distance H2 is within this range, which not only prevents the temperature of the second disk or the temperature of the liquid it receives from affecting the detection results of the temperature sensor, but also creates a second cavity between the temperature-sensing surface and the lower surface of the second disk. This cavity further dissipates the heat generated by the ejector tube, thereby preventing excessive heat concentration from affecting the measurement results of the temperature sensor and ensuring the accuracy of the temperature sensor's detection results.

[0008] For example, a protrusion is formed in the first disc portion directly opposite the temperature sensing element. The protrusion extends away from the temperature sensing element and forms a cavity. This configuration has several advantages. First, the protrusion extends away from the temperature sensing element, allowing liquid remaining on the protrusion to flow to the first and second disc portions, further reducing the influence of the liquid temperature on the temperature sensing element. It also keeps the protrusion further away from the sensing surface, preventing the temperature of the protrusion or the temperature of any small amount of liquid remaining on it from affecting the detection results. Second, the cavity in the protrusion allows heat generated by the ejector tube to dissipate into and outward through the cavity, preventing excessive heat concentration that could affect the measurement results and ensuring the accuracy of the temperature sensing element's detection. Furthermore, when the temperature sensing element is fixed with fasteners, the protrusion can avoid interfering with the fasteners.

[0009] For example, the protrusion has a top wall, and a third distance H3, ranging from 4 mm to 14 mm, exists between the lower surface of the top wall and the temperature-sensing surface. This arrangement, with the third distance H3 within this range, not only allows liquid remaining on the protrusion to flow to the first and second discs, further reducing the influence of the liquid temperature on the temperature-sensing element, but also prevents the temperature of the protrusion or the temperature of a small amount of liquid remaining on it from affecting the detection results of the temperature-sensing element, thereby ensuring the accuracy of the detection results.

[0010] For example, the liquid collection tray also has a third tray portion, which is higher than the second tray portion, and the second tray portion is connected between the first tray portion and the third tray portion. In this configuration, the second tray portion is lower than the first tray portion and the third tray portion, and the second tray portion can form the bottom of the liquid collection tray, preventing the liquid collected by the second tray portion from flowing around and affecting other components.

[0011] For example, the ejector tube is positioned by a bracket located below the liquid tray, and the temperature sensing element is mounted on the bracket. This arrangement facilitates the temperature sensing element in detecting the temperature of the ejector tube. When the burner is used on a stove, this not only prevents the temperature sensing element from being affected by the flame, ensuring accurate temperature detection, but also avoids interference between the temperature sensing element and the cookware, thereby expanding the types of cookware that can be used on the stove and broadening the applicability of the stove.

[0012] For example, the temperature-sensing surface forms surface contact with the bracket. With this configuration, since the ejector tube is positioned via the bracket, heat can be conducted from the ejector tube to the bracket. Measuring the temperature of the bracket allows for the detection of the ejector tube's temperature, making installation easier. Furthermore, since the temperature of the ejector tube is related to the temperature of the pot bottom, sensing the temperature of the bracket via the temperature-sensing element allows for the detection of the pot bottom temperature (i.e., indirect detection of the cookware temperature). This not only prevents the temperature-sensing element from being affected by the flame, ensuring accurate temperature detection, but also avoids interference between the temperature-sensing element and the cookware, thereby expanding the types of cookware that can be used on the stove and broadening the stove's applicability.

[0013] For example, the bracket has a surface to be measured, and the temperature-sensing surface is in contact with the surface to be measured. This arrangement ensures that the temperature-sensing surface and the bracket form surface contact, ensuring that the temperature-sensing element can accurately detect the temperature of the bracket through the temperature-sensing surface.

[0014] For example, the support has a plate-shaped body, through which at least part of the ejector tube passes, and the surface to be measured is disposed on the plate-shaped body. This arrangement not only facilitates the positioning of the ejector tube, but also, since the temperature of the pot bottom above the burner is transferred to the plate-shaped body through the 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.

[0015] For example, the upper surface of the plate-shaped body and the lower surface of the second disc portion have a fourth distance H4, and the plate-shaped body has a thickness h, where H4 = H2 - h. This configuration, on the one hand, ensures that the surface to be measured is located on the lower surface of the plate-shaped body, thus avoiding the influence of flame combustion on temperature detection and guaranteeing the accuracy of temperature detection. It also effectively prevents leaked liquid from contacting the temperature sensing element and affecting its accuracy and lifespan. On the other hand, it creates a second cavity between the upper surface of the plate-shaped body and the lower surface of the second disc portion, which further dissipates the heat generated by the ejector tube, thereby preventing excessive heat concentration that could affect the measurement results of the temperature sensing element.

[0016] For example, the thickness h is 0.5mm to 3mm. With this setting, the thickness h is within this range, which ensures the accuracy of temperature detection by the temperature sensing element and the strength of the plate-shaped body itself. This not only avoids the plate-shaped body being too thin and having poor strength, but also avoids the plate-shaped body being too thick, which would result in a slower speed of temperature conduction to the temperature sensing element and affect the temperature detection of the temperature sensing element.

[0017] According to another aspect of this utility model, a burner is provided, which includes 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, comprising a bottom shell, a panel, and a burner as described above. The bottom shell forms an open mounting cavity, the panel covers the opening, and the panel has a through hole. A liquid tray covers the through hole and has a through hole. An injector tube has a gas outlet, which passes through the mounting cavity and the through hole to communicate with a mixing chamber. Since the burner described above has the aforementioned beneficial effects, the stove including the burner 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 for Figure 1 A cross-sectional view of the stove shown;

[0024] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0025] Figure 4 for Figure 1 The front view of the burner is shown;

[0026] Figure 5 for Figure 4 The front view of the stove head is shown;

[0027] Figure 6 for Figure 5 A three-dimensional view of the liquid-holding tray shown;

[0028] Figure 7 for Figure 5 A 3D view of the bracket shown;

[0029] Figure 8 for Figure 5 The image shows a three-dimensional view of the temperature sensing element.

[0030] The above figures include the following reference numerals:

[0031] 1. Burner; 10. Furnace head; 110. Liquid tray; 111. First tray section; 1111. First hole; 112. Second tray section; 1121. Second hole; 113. Third tray section; 114. Liquid chamber; 115. First connecting part; 116. Second connecting part; 117. Protrusion; 1171. Cavity; 1172. Top wall; 120. Injector tube; 121. Inner ring injector tube; 122. Outer ring injector tube; 123. Gas outlet; 130. Temperature sensing element ; 131. Sensing surface; 132. Sheet-shaped part; 133. Lead wire part; 1331. Probe body; 1332. Signal transmission line; 141. First cavity; 142. Second cavity; 143. Third cavity; 150. Support; 151. Surface to be tested; 152. Plate-shaped body; 153. Support foot; 11. Flame holder; 12. Flame cap; 13. Mixing chamber; 14. Pot support; 2. Panel; 20. Through hole; 3. Bottom shell; 31. Mounting cavity; 32. Opening. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] 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 stove. The following will describe in detail a burner head according to an embodiment of this utility model with reference to the accompanying drawings.

[0035] See also Figures 1 to 6The burner head 10 may include a liquid collection tray 110, an ejector tube 120, and a temperature sensing element 130 for sensing the temperature of the ejector tube 120. It should be noted that the sensing here can be direct or indirect. In direct sensing, the temperature sensing element 130 is in contact with the ejector tube 120; in indirect sensing, the temperature sensing element 130 is not in contact with the ejector tube 120, but directly senses the temperature of the connecting part (such as the bracket 150 mentioned later) that is in contact with the ejector tube 120. The ejector tube 120 may pass through the liquid collection tray 110. The liquid collection tray 110 may be made of metal, which is not only easy to clean but also resistant to liquid corrosion. The temperature sensing element 130 may be located below the liquid collection tray 110. The liquid collection tray 110 may have a first tray portion 111 and a second tray portion 112. The second tray portion 112 may be lower than the first tray portion 111. The first tray portion 111 may be closer to the center of the liquid collection tray 110 than the second tray portion 112. The temperature sensing element 130 may have a temperature sensing surface 131. The orthographic projection of the temperature sensing surface 131 onto the plane containing the first disk portion 111 may fall within the first disk portion 111. Understandably, the temperature sensing surface 131 may be located below the first disk portion 111. The temperature sensing surface 131 is spaced apart from the lower surface of the first disk portion 111.

[0036] The burner head 10 of this invention, on the one hand, is equipped with a temperature sensing element 130 for sensing the temperature of the ejector tube 120. The temperature sensing element 130 is located below the liquid-holding tray 110. When this burner head 10 is applied to a stove, since the temperature of the ejector tube 120 is related to the temperature of the pot bottom, the temperature of the pot bottom can be detected by sensing the temperature of the ejector tube 120 through the temperature sensing element 130 (i.e., indirect detection of the pot temperature). This not only prevents the temperature sensing element 130 from being affected by the flame, ensuring the accuracy of temperature detection, but also avoids interference between the temperature sensing element 130 and the pot, thereby expanding the types of pots that can be used on the stove and broadening the applicability of the stove. On the other hand, since the second tray 112 is lower than the first tray 111, the liquid on the first tray 111 can flow to the second tray 112, reducing... By eliminating the influence of the liquid temperature on the first plate 111 on the temperature sensing element 130, and ensuring that the first distance H1 between the temperature sensing surface 131 and the lower surface of the first plate 111 is within this range, not only is it avoided that the temperature of the first plate 111 (i.e., the temperature conducted from the ejector tube 120 to the first plate 111) or the temperature of the liquid remaining on the first plate 111 affects the detection result of the temperature sensing element 130, but it also allows the formation of a first cavity 141 between the temperature sensing surface 131 and the lower surface of the first plate 111. The heat generated by the ejector tube 120 is dissipated to the first cavity 141 and then dissipated outward through the first cavity 141, avoiding excessive heat concentration that could affect the measurement result of the temperature sensing element 130, thereby ensuring the accuracy of the detection result of the temperature sensing element 130.

[0037] Specifically, the ejector tube 120 may include an inner ring ejector tube 121 and an outer ring ejector tube 122. Since the inner ring ejector tube 121 is centered for convenient flame control, and the outer ring ejector tube 122 is farther from the center than the inner ring ejector tube 121, it helps to expand the combustion range. Therefore, the inner ring ejector tube 121 is positioned closer to the center of the liquid-holding tray 110 than the outer ring ejector tube 122. Because the first tray portion 111 is positioned close to the center of the liquid-holding tray 110, the inner ring ejector tube 121 can pass through the first tray portion 111. A first hole 1111 may be provided on the first tray portion 111, and the inner ring ejector tube 121 can pass through the first hole 1111. The first tray portion 111 is higher than the second tray portion 112, allowing liquid on the first tray portion 111 to flow towards the second tray portion 112, reducing the amount of liquid on the first tray portion 111 flowing into the liquid-holding tray 110 from the first hole 1111 and affecting the detection of the temperature sensing element 130. To further prevent liquid from flowing into the liquid collection tray 110 from the first hole 1111, a leak-proof structure, such as a flange or a seal, can be provided between the inner ring ejector tube 121 and the first tray 111. To accommodate the positional relationship between the inner ring ejector tube 121 and the outer ring ejector tube 122, the outer ring ejector tube 122 can be inserted into the second tray 112. The second tray 112 can have a second hole 1121, through which the outer ring ejector tube 122 can be inserted. To prevent liquid from flowing into the liquid collection tray 110 from the second hole 1121, a leak-proof structure, such as a flange or a seal, can also be provided between the outer ring ejector tube 122 and the second tray 112.

[0038] A first connecting portion 115 may be provided between the first plate portion 111 and the second plate portion 112. The first connecting portion 115 may be inclined or arc-shaped to better guide the liquid from the first plate portion 111 to the second plate portion 112.

[0039] See also Figure 3 and Figure 6 A first distance H1 can be maintained between the temperature-sensing surface 131 and the lower surface of the first disk portion 111. This first distance H1 can be 5mm to 12mm, for example, 5mm, 7.5mm, 10mm, or 12mm. Within this range, the distance H1 not only prevents the temperature of the first disk portion 111 (i.e., the temperature conducted from the ejector tube 120 to the first disk portion 111) or the temperature of the liquid remaining on the first disk portion 111 from affecting the detection result of the temperature-sensing element 130 due to the first disk portion 111 being too close to the temperature-sensing surface 131, but also allows the formation of a first cavity 141 between the temperature-sensing surface 131 and the lower surface of the first disk portion 111. The heat generated by the ejector tube 120 can be dissipated into and outwards through the first cavity 141. In one embodiment of this invention, the first distance H1 is 7.5mm, which effectively ensures the accuracy of the detection result of the temperature-sensing element 130.

[0040] See also Figure 3 and Figure 6 A second distance H2 can be maintained between the temperature-sensing surface 131 and the lower surface of the second disk 112. This second distance H2 can be 3mm to 8mm, for example, 3mm, 4.6mm, 6mm, or 8mm. Within this range, the temperature of the second disk 112 (i.e., the temperature conducted from the ejector tube 120 to the second disk 112 via the first disk 111) or the temperature of the liquid received by the second disk 112 does not affect the detection result of the temperature-sensing element 130. Furthermore, a second cavity 142 is formed between the temperature-sensing surface 131 and the lower surface of the second disk 112, further dissipating the heat generated by the ejector tube 120. This prevents excessive heat concentration from affecting the measurement result of the temperature-sensing element 130, thus ensuring the accuracy of the detection result. In one embodiment of this invention, the second distance H2 is 4.6mm, which effectively ensures the accuracy of the detection result of the temperature-sensing element 130.

[0041] See again Figure 3 and Figure 6 The first disc portion 111 may have a protrusion 117 formed at the position directly opposite the temperature sensing element 130. The protrusion 117 protrudes away from the temperature sensing element 130 and forms a cavity 1171. Thus, on the one hand, the protrusion 117 protrudes away from the temperature sensing element 130, allowing liquid remaining on the protrusion 117 to flow to the first disc portion 111 and the second disc portion 112, further reducing the influence of the remaining liquid temperature on the temperature sensing element 130. On the other hand, it is further away from the temperature sensing surface 131, preventing the temperature of the protrusion 117 (i.e., the temperature conducted from the ejector tube 120 to the protrusion 117 through the first disc portion 111) or the temperature of the small amount of liquid remaining on the protrusion 117 from affecting the temperature sensing element 130. The detection results; on the other hand, the protrusion 117 forms a cavity 1171, and the heat generated by the ejector tube 120 is dissipated from the first cavity 141 into the cavity 1171 and dissipated outward through the cavity 1171, so as to avoid the heat being too concentrated and affecting the measurement results of the temperature sensing element 130, thereby ensuring the accuracy of the detection results of the temperature sensing element 130; in addition, when the temperature sensing element 130 is fixed by fasteners, the protrusion 117 can also avoid the fasteners, thereby avoiding mutual interference.

[0042] See Figure 3The protrusion 117 may have a top wall 1172. A third distance H3 may exist between the lower surface of the top wall 1172 and the temperature-sensing surface 131. This third distance H3 can be 4mm to 14mm, for example, 4mm, 7mm, 9mm, or 14mm. Within this range, the third distance H3 not only allows the liquid remaining on the protrusion 117 to flow to the first disk 111 and the second disk 112, further reducing the influence of the remaining liquid temperature on the temperature-sensing element 130, but also prevents the temperature of the protrusion 117 or the temperature of the small amount of liquid remaining on the protrusion 117 from affecting the detection result of the temperature-sensing element 130, thus ensuring the accuracy of the detection result of the temperature-sensing element 130. In one embodiment of this invention, the third distance H3 is 9mm, which effectively ensures the accuracy of the detection result of the temperature-sensing element 130.

[0043] Furthermore, when the temperature sensing element 130 is fixed by fasteners, the distance between the lower surface of the top wall 1172 and the top of the fastener can be greater than 1 mm, such as 1 mm, 1.5 mm, or 2 mm. This effectively avoids interference between the protrusion 117 and the fastener. In one embodiment of this invention, the distance between the tops of the fasteners is 1.5 mm, which effectively ensures that the protrusion 117 and the fastener do not interfere with each other.

[0044] See again Figure 3 The liquid-holding tray 110 may also have a third tray 113. The third tray 113 may be higher than the second tray 112. Thus, the second tray 112 is lower than the first tray 111 and the third tray 113, and the second tray 112 can form the bottom of the liquid-holding tray 110, preventing the liquid held in the second tray 112 from flowing around and affecting other components. The second tray 112 may be connected between the first tray 111 and the third tray 113. The third tray 113 may enclose a third cavity 143. The third cavity 143 may be connected to the second cavity 142. Thus, the heat dissipated into the second cavity 142 can be further dissipated outward through the third cavity 143, allowing thermal equilibrium to be achieved below the liquid-holding tray 110, thereby preventing excessive heat concentration from affecting the measurement results of the temperature sensing element 130, and ensuring the accuracy of the detection results of the temperature sensing element 130. Furthermore... A second connecting portion 116 may be provided between the second plate portion 112 and the third plate portion 113. The second connecting portion 116 may also be inclined or arc-shaped to better guide liquid from the third plate portion 113 to the second plate portion 112. A liquid-collecting cavity 114 may be formed at the position of the second plate portion 112 to collect liquid splashed during cooking, preventing liquid from flowing everywhere and affecting the operation of other components.

[0045] See also Figures 2 to 5The ejector tube 120 can be positioned using the bracket 150. The bracket 150 can be located below the liquid tray 110. The temperature sensing element 130 can be mounted on the bracket 150. The temperature sensing element 130 can be in direct contact with the bracket 150 or indirect contact, ensuring that the temperature sensing element 130 can measure the temperature of the ejector tube 120. This makes it easier for the temperature sensing element 130 to sense the temperature of the ejector tube 120. When the burner head 10 is used for the burner 1, and the burner 1 is applied to the stove, it not only prevents the temperature sensing element 130 from being affected by the flame, ensuring the accuracy of temperature detection, but also avoids interference between the temperature sensing element 130 and the cookware, thereby expanding the types of cookware that can be used on the stove and broadening the applicability of the stove.

[0046] See also Figure 3 , Figure 4 , Figure 5 and Figure 7 The temperature-sensing surface 131 and the bracket 150 can form surface contact. The bracket 150 can be made of a heat-conducting material, such as metal or other materials with good heat transfer properties. Thus, since the ejector tube 120 is positioned through the bracket 150, the ejector tube 120 can conduct heat to the bracket 150. Measuring the temperature of the bracket 150 allows for the detection of the temperature of the ejector tube 120, making installation easier. Furthermore, since the temperature of the ejector tube 120 is related to the temperature of the pot bottom, sensing the temperature of the bracket 150 (i.e., the temperatures of the inner ring ejector tube 121 and the outer ring ejector tube 122) through the temperature-sensing element 130 allows for the detection of the pot bottom temperature (i.e., indirect detection of the pot temperature). This not only prevents the temperature-sensing element 130 from being affected by the flame, ensuring accurate temperature detection, but also avoids interference between the temperature-sensing element 130 and the pot, thereby expanding the types of pots that can be used on the stove and broadening the stove's applicability.

[0047] See also Figure 3 and Figure 7 The bracket 150 may have a test surface 151, and the temperature sensing surface 131 may be in contact with the test surface 151. In this way, the temperature sensing surface 131 and the bracket 150 are in surface contact, ensuring that the temperature sensing element 130 can accurately detect the temperature of the bracket 150 through the temperature sensing surface 131.

[0048] See also Figure 4 , Figure 5 and Figure 7The support 150 may have a plate-shaped body 152, through which at least a portion of the ejector tube 120 can pass, and the surface to be measured 151 can be disposed on the plate-shaped body 152. This not only facilitates the positioning of the ejector tube 120, but also, since the temperature of the pot bottom above the burner 10 is transferred to the plate-shaped body 152 through the ejector tube 120 when the pot is heated, the temperature of the plate-shaped body 152 is correlated with the temperature of the pot bottom, ensuring the accuracy and speed of temperature detection. Furthermore, the support 150 may also have a support leg 153, which can be used to support the plate-shaped body 152, thereby ensuring that the ejector tube 120 can be positioned by the support 150.

[0049] See again Figure 3 and Figure 7 The upper surface of the plate-shaped body 152 and the lower surface of the second disk portion 112 can have a fourth distance H4, and the plate-shaped body 152 can have a thickness h, where H4 = H2 - h. Understandably, the distance between the upper surface of the plate-shaped body 152 and the lower surface of the second disk portion 112 can be the distance between the temperature-sensing surface 131 and the lower surface of the second disk portion 112 minus the thickness of the plate-shaped body 152. That is, by using the formula H4 = H2 - h, it can be deduced that the temperature-sensing surface 131 is attached to the lower surface of the plate-shaped body 152. Thus, on the one hand, the test surface 151 is located on the lower surface of the plate-shaped body 152, which not only avoids the influence of flame combustion on temperature detection and ensures the accuracy of temperature detection, but also effectively prevents leaked soup from contacting the temperature sensing element 130 and affecting the accuracy and service life of the temperature sensing element 130; on the other hand, it forms a second cavity 142 between the upper surface of the plate-shaped body 152 and the lower surface of the second plate portion 112, which can further dissipate the heat generated by the ejector tube 120 outward, thereby avoiding excessive heat concentration that would affect the measurement results of the temperature sensing element 130.

[0050] See again Figure 3 and Figure 7 The thickness h can be from 0.5mm to 3mm, for example, 0.5mm, 1mm, 2mm, 3mm, etc. Within this range, the thickness h ensures the accuracy of temperature detection by the temperature sensing element 130 and the strength of the plate-shaped body 152. This avoids both excessively thin plate-shaped body 152 (resulting in poor strength) and excessively thick plate-shaped body 152 (resulting in slow temperature conduction to the temperature sensing element 130, thus affecting temperature detection). In one embodiment of this invention, the thickness h is 1mm, which effectively ensures the accuracy of temperature detection by the temperature sensing element 130.

[0051] For example, the temperature sensing element 130 can be connected to the bracket 150 via fasteners to ensure that the temperature sensing surface 131 is in close contact with the surface to be measured 151. This ensures the stability of the connection between the temperature sensing element 130 and the bracket 150 and guarantees good surface contact. The fasteners can be screws, bolts, etc. In embodiments not shown, the temperature sensing element 130 can also be connected to the bracket 150 by other means, such as welding, riveting, gluing, or snap-fit ​​connection.

[0052] Specifically, in conjunction with reference Figures 1 to 8 When the burner head 10 is applied to the burner 1, and the burner 1 is applied to the stove, the temperature sensing element 130 can be a temperature sensor. The temperature sensing element 130 can have a sheet-like portion 132 and a lead portion 133. The sheet-like portion 132 can be made of a thermally conductive material, such as metal or other materials with good thermal conductivity. The temperature sensing surface 131 can be located on the sheet-like portion 132 to ensure that the temperature sensing element 130 can accurately detect the temperature of the bracket 150 through the temperature sensing surface 131. The lead portion 133 can include a probe body 1331 connected to the sheet-like portion 132. The probe body 1331 can contain a negative temperature coefficient thermistor, etc., which is not limited here, as long as it can convert temperature information into other output or judgment signals. In this way, the temperature sensor 130 can monitor the temperature in real time and compare it with the preset temperature threshold. If the temperature of the bottom of the pot is higher than the preset temperature threshold, it is determined that dry burning has occurred. Alternatively, temperature information over a period of time can be collected, the rate of temperature change over that period can be calculated, and the threshold for activating the anti-dry burning function can be automatically selected based on the rate of temperature change. Finally, if the temperature of the bottom of the pot changes higher than the threshold, it is determined that dry burning has occurred, and then the gas supply is cut off to prevent combustion.

[0053] The following explanation uses a negative temperature coefficient thermistor as an example. Under normal heating conditions, the temperature change rate of a negative temperature coefficient thermistor is relatively stable. However, when the cookware is dry-burned, the temperature of the cookware will rise rapidly due to insufficient medium to absorb heat, and the temperature of the support 150 will also rise rapidly, causing the temperature change rate of the negative temperature coefficient thermistor to increase sharply.

[0054] Negative temperature coefficient (NTC) thermistors exhibit a temperature-resistance characteristic curve. When the temperature of an NTC thermistor increases, the steeper slope of its temperature-resistance characteristic curve indicates that the thermistor is under continuous heating, thus confirming that the cookware is dry-heated. NTC thermistors respond quickly to temperature changes and have high sensitivity, providing accurate temperature measurements. Furthermore, NTC thermistors are simple in structure, low in cost, have a low failure rate, and exhibit good long-term stability. Their high heat transfer efficiency and sensitive response to temperature changes, combined with their simple structure and low operating cost, effectively reduce the failure rate and operating costs of cookware, thereby improving its reliability.

[0055] In some embodiments, the probe body 1331 may contain a thermally conductive medium. This allows the temperature of the support 150 to be transferred to the negative temperature coefficient thermistor more effectively and accurately, thereby further improving the accuracy and speed of temperature detection. Specifically, the thermally conductive medium can be a thermally conductive resin. Thermally conductive resin not only has high thermal conductivity but also stability. Filling the probe body 1331 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.

[0056] Furthermore, the lead portion 133 may also include a signal transmission line 1332 connected to the end of the probe body 1331 away from the sheet portion 132. This not only facilitates the conversion of the temperature information collected by the sheet portion 132 into an output signal for transmission, but also prevents the signal transmission line 1332 from being affected by high temperatures, as it is relatively far from the sheet portion 132. Specifically, the signal transmission line 1332 may be covered with a protective sleeve. The protective sleeve further prevents high temperatures from affecting the signal transmission line 1332 and also avoids the problem of the signal transmission line 1332 being easily damaged when exposed.

[0057] In an embodiment not shown, the end of the signal transmission line 1332 furthest from the probe body 1331 can be connected to a controller. The temperature information collected by the temperature sensing element 130 by the plate-shaped portion 132 is converted into a signal by a negative temperature coefficient thermistor and transmitted to the controller via the signal transmission line 1332. The controller can control the working state of the stove based on this signal. When the controller determines that the stove is in a state of dry burning, accidental flameout, or prolonged high flame without placing the pot on it, it can immediately cut off the gas supply to extinguish the stove and avoid safety hazards.

[0058] According to another aspect of the present invention, a burner 1 is provided. (See also...) Figures 2 to 5The burner 1 may include a flame distribution seat 11, a flame cap 12, and a burner head 10 as described above. The flame cap 12 and the flame distribution seat 11 may be closed to form a mixing chamber 13. The mixing chamber 13 may be connected to the injector 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 described in detail here.

[0059] Furthermore, the burner cap 12 may 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 1, providing a wide heating area. The inner ring burner cap is located inside the outer ring burner cap, forming a central flame area for concentrated heating, and together with the outer ring burner cap, forming at least two rings of flame. The corresponding burner base 11 may include a large burner base and a small burner base. The outer ring burner cap may be placed on the large burner base, and the inner ring burner cap may be placed on the small burner base. The burner 1 may also typically include a pot support 14. The pot support 14 may be disposed around the outer periphery of the outer ring burner cap. The pot support 14 may be supported on the liquid tray 110. The pot may be placed on the pot support 14. When the user turns on the burner 1, the combustible gas ejected from the burner base 11 can be ignited by the ignition needle to form a flame, and the flame can diffuse through the gaps in the burner cap 12 to form a flame ring, thereby heating the pot.

[0060] According to another aspect of this utility model, a stove is provided. (See also...) Figures 1 to 3 The stove may include a bottom shell 3, a panel 2, and a burner 1 as described above. The bottom shell 3 may form a mounting cavity 31 with an opening 32. The panel 2 may cover the opening 32. The panel 2 may have a through hole 20. A liquid tray 110 may cover the through hole 20. The liquid tray 110 may have a through hole, which may include the first hole 1111 and the second hole 1121 described above. The ejector tube 120 may have a gas outlet 123. The gas outlet 123 can pass through the mounting cavity 31 through the through hole and communicate with the mixing chamber 13. Since the burner 1 described above has the above-mentioned beneficial effects, the stove including the burner 1 described above also has the above-mentioned beneficial effects, which will not be described in detail here.

[0061] Furthermore, a fifth distance H5 can be provided between the third disc portion 113 and the panel 2. This fifth distance H5 can be 2mm to 7mm, for example, 2mm, 4.8mm, 6mm, or 7mm. Thus, a third cavity 143 can be formed between the lower surface of the third disc portion 113 and the upper surface of the panel 2. Heat is sequentially dissipated from the ejector tube 120 through the first cavity 141, the second cavity 142, and the third cavity 143. In the presence of a bulge, heat can also be dissipated from the first cavity 141 into the cavity 1171. This allows thermal equilibrium to be achieved below the liquid-holding tray 110, preventing excessive heat concentration from affecting the measurement results of the temperature sensing element 130, thereby ensuring the accuracy of the temperature sensing element 130's detection results. In one embodiment of this invention, the fifth distance H5 is optimally 4.8mm, which effectively ensures the accuracy of the temperature sensing element 130's detection results.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stove head, characterized in that, The device includes a liquid-holding tray, an ejector tube, and a temperature-sensing element for sensing the temperature of the ejector tube. The ejector tube passes through the liquid-holding tray, and the temperature-sensing element is located below the liquid-holding tray. The liquid-holding tray has a first tray portion and a second tray portion. The second tray portion is lower than the first tray portion, and the first tray portion is closer to the center of the liquid-holding tray than the second tray portion. The temperature-sensing element has a temperature-sensing surface. The orthographic projection of the temperature-sensing surface onto the plane containing the first tray portion falls within the first tray portion, and the temperature-sensing surface is spaced apart from the lower surface of the first tray portion.

2. The burner head according to claim 1, characterized in that, The temperature sensing surface and the lower surface of the first disk have a first distance H1, which is 5mm to 12mm.

3. The burner head according to claim 1, characterized in that, There is a second distance H2 between the temperature sensing surface and the lower surface of the second disk, and the second distance H2 is 3mm to 8mm.

4. The burner head according to claim 1, characterized in that, The first disc portion has a protrusion formed at the position directly opposite the temperature sensing element, the protrusion protrudes away from the temperature sensing element and forms a cavity.

5. The burner head according to claim 4, characterized in that, The protrusion has a top wall, and there is a third distance H3 between the lower surface of the top wall and the temperature sensing surface, the third distance H3 being 4mm to 14mm.

6. The burner head according to claim 1, characterized in that, The liquid-holding tray also has a third tray portion, which is higher than the second tray portion, and the second tray portion is connected between the first tray portion and the third tray portion.

7. The burner head according to claim 1, characterized in that, The ejector tube is positioned by a bracket located below the liquid-holding tray, and the temperature-sensing element is mounted on the bracket.

8. The burner head according to claim 7, characterized in that, The temperature-sensing surface makes surface contact with the bracket.

9. The burner head according to claim 8, characterized in that, The bracket has a test surface, and the temperature sensing surface is in contact with the test surface.

10. The burner head according to claim 9, characterized in that, The support has a plate-shaped body, the ejector tube is at least partially inserted through the plate-shaped body, and the surface to be tested is disposed on the plate-shaped body.

11. The burner head according to claim 10, characterized in that, The upper surface of the plate-shaped body and the lower surface of the second disk portion have a fourth distance H4, and the plate-shaped body has a thickness h, where H4 = H2 - h.

12. The burner head according to claim 11, characterized in that, The thickness h is 0.5 mm to 3 mm.

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

14. A stove, characterized in that, The device includes a bottom shell, a panel, and a burner as described in claim 13. The bottom shell forms an open mounting cavity, the panel covers the opening, the panel has a through hole, the liquid collection tray covers the through hole, the liquid collection tray has a through hole, the ejector tube has an air outlet, and the air outlet passes through the mounting cavity and the through hole to communicate with the mixing chamber.

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