Stove

Abstract

The utility model provides a kitchen range. The kitchen range comprises a bottom shell, a panel, a liquid containing disc, an injection pipe and a temperature sensing piece used for sensing the temperature of the injection pipe, a mounting cavity with an opening is defined by the bottom shell. The panel covers the opening, and a through hole is formed in the panel; the liquid containing disc is supported on the panel and covers the through hole, a liquid containing cavity is defined by the liquid containing disc, and a penetrating hole is formed in the liquid containing disc; the injection pipe is arranged in the penetrating hole in a penetrating mode. A liquid leakage prevention structure is arranged at the position of the penetrating hole, the installation cavity is isolated from the liquid containing cavity through the liquid leakage prevention structure, and the temperature sensing piece is located in the installation cavity. According to the utility model, on one hand, the temperature sensing piece is arranged in the mounting cavity, so that the temperature sensing piece is prevented from being influenced by flames, the temperature detection accuracy is ensured, interference between the temperature sensing piece and the cookware is avoided, and the types of the cookware placed on the stove for use are expanded; and on the other hand, by arranging the liquid leakage prevention structure, liquid borne in the liquid containing cavity can be effectively prevented from permeating into the mounting cavity from the position of the penetrating hole to affect the detection result of the temperature sensing piece.

Description

Technical Field

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

[0002] As the usage of gas stoves increases, people's demands for stove safety are also rising. Stovetops typically have a drip tray and an external temperature sensor. The drip tray catches liquids that splash during cooking and has a through-hole through which the external temperature sensor passes, allowing it to contact the bottom of the pot to detect its temperature. If the pot's bottom temperature exceeds a preset temperature, the stove will automatically shut off as a safety feature. 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 immediately cut off based on the external temperature sensor's readings to prevent accidents.

[0003] However, since the external temperature sensor needs to contact the bottom of the cookware, only a flat-bottomed pan can be used for cooking to avoid interference with the sensor. Additionally, the external temperature sensor is susceptible to flame interference, which can cause it to inaccurately detect the temperature at the bottom of the cookware, leading to abnormal flameouts. Finally, the drip tray usually has through holes for the ejector tube, and liquid may flow into the cookware through these holes or openings, causing excessive contact with the external temperature sensor. This can affect the sensor's readings and increase the risk of safety hazards. 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 stove is provided, the technical solution of which is as follows.

[0005] The cooktop includes a bottom shell, a panel, a liquid collection tray, an ejector tube, and a temperature sensor for sensing the temperature of the ejector tube. The bottom shell forms an open mounting cavity. The panel covers the opening and has a through hole. The liquid collection tray is supported by the panel and covers the through hole. The liquid collection tray forms a liquid-holding cavity and has a through hole. The ejector tube passes through the through hole. A leak-proof structure is provided at the through hole location. The mounting cavity is isolated from the liquid-holding cavity by the leak-proof structure. The temperature sensor is located inside the mounting cavity.

[0006] The stove of this utility model, on the one hand, is equipped with a temperature sensing element for sensing the temperature of the ejector tube. Since the temperature of the ejector tube is related to the temperature of the pot bottom, by placing the temperature sensing element in the mounting cavity, the temperature of the pot bottom can be detected by sensing the temperature of the ejector tube (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, by setting a leak-proof structure, it can effectively prevent the liquid collected in the liquid-holding cavity from seeping into the mounting cavity through the perforation hole. This not only prevents the liquid from entering the mounting cavity and affecting the detection results of the temperature sensing element, but also reduces the possibility of safety risks.

[0007] For example, in a direction perpendicular to the panel, the liquid collection tray has a flange formed around the perforation, the flange being higher than the upper surface of the liquid collection tray, and the flange forming at least a partial leak-proof structure. This configuration, on the one hand, effectively prevents liquid from seeping into the mounting cavity from the perforation by blocking the liquid within the liquid collection cavity, thus avoiding liquid entering the mounting cavity and affecting the temperature sensing element's detection results, and reducing the possibility of safety risks; on the other hand, the flange can be achieved through processes such as stamping or bending, resulting in lower manufacturing costs and thus saving on manufacturing costs.

[0008] For example, an annular elastic ring is provided between the outer wall of the ejector tube and the wall of the through hole, forming at least a partial leak-proof structure. This arrangement, by sealing the outer wall of the ejector tube with the wall of the through hole through the annular elastic ring, effectively prevents liquid from seeping into the mounting cavity from the through hole. This not only avoids liquid entering the mounting cavity and affecting the detection results of the temperature sensing element, but also reduces the possibility of safety risks.

[0009] For example, the ejector tube has an inner ring ejector tube and an outer ring ejector tube, and the through hole has a first hole and a second hole. The first hole is closer to the center of the liquid-collecting tray than the second hole. The inner ring ejector tube passes through the first hole, and the outer ring ejector tube passes through the second hole. The leak-proof structure includes a first leak-proof structure and a second leak-proof structure. The first leak-proof structure is located at the first hole, and the second leak-proof structure is located at the second hole. This configuration prevents liquid collected in the liquid-collecting chamber from seeping into the mounting cavity through the first hole by the first leak-proof structure, and prevents liquid collected in the liquid-collecting chamber from seeping into the mounting cavity through the second hole by the second leak-proof structure. This not only avoids liquid entering the mounting cavity and affecting the detection results of the temperature sensing element, but also reduces the possibility of safety risks.

[0010] For example, in a direction perpendicular to the panel, a first flange is formed around the periphery of the first hole in the liquid-collecting tray. The first flange is higher than the upper surface of the liquid-collecting tray, and the first flange forms a first leak-proof structure. This configuration serves two purposes: firstly, by blocking the liquid within the liquid-collecting cavity through the first flange, liquid can be prevented from seeping into the mounting cavity from the first hole. This not only avoids liquid entering the mounting cavity and affecting the temperature sensing element's detection results but also reduces the possibility of safety risks. Secondly, the first flange can be achieved through processes such as stamping or bending, resulting in lower manufacturing costs and thus saving on manufacturing costs.

[0011] For example, the first flange has a height H, which is 1mm to 4mm. When the height H is within this range, it ensures that the first flange can effectively block the liquid in the liquid-containing cavity, effectively preventing the liquid from seeping into the mounting cavity from the first hole. This not only avoids the liquid entering the mounting cavity and affecting the detection results of the temperature sensing element, but also reduces the possibility of safety risks.

[0012] For example, a first annular elastic ring is provided between the outer wall of the inner ring ejector tube and the wall of the first hole, forming a first leak-proof structure. This arrangement, by sealing the space between the outer wall of the inner ring ejector tube and the wall of the first hole using the first annular elastic ring, effectively prevents liquid from seeping into the mounting cavity from the first hole. This not only avoids liquid entering the mounting cavity and affecting the temperature sensing element's detection results but also reduces the possibility of safety risks.

[0013] For example, a first groove is provided on the outer ring of the first annular elastic ring, and a portion of the liquid-collecting tray is engaged in the first groove. This arrangement not only facilitates installation and disassembly, but also ensures that the first annular elastic ring can be stably fixed between the outer wall of the inner ring ejector tube and the wall of the first hole.

[0014] For example, in a direction perpendicular to the panel, a second flange is formed around the second hole in the liquid-collecting tray. The second flange is higher than the upper surface of the liquid-collecting tray, forming a second leak-proof structure. This configuration, on the one hand, effectively prevents liquid from seeping into the mounting cavity from the second hole by blocking the liquid within the liquid-collecting cavity. This not only avoids liquid entering the mounting cavity and affecting the temperature sensing element's detection results but also reduces the possibility of safety risks. On the other hand, the second flange can be manufactured using processes such as stamping or bending, resulting in lower manufacturing costs and thus saving on manufacturing costs.

[0015] For example, the second flange has a height H, which is 1mm to 4mm. When the height H is within this range, it ensures that the second flange can effectively block the liquid in the liquid-containing cavity, effectively preventing the liquid from seeping into the mounting cavity from the second hole. This not only avoids the liquid entering the mounting cavity and affecting the detection results of the temperature sensing element, but also reduces the possibility of safety risks.

[0016] For example, a second annular elastic ring is provided between the outer wall of the outer ring ejector tube and the wall of the second hole, forming a second leak-proof structure. This arrangement, by sealing the space between the outer wall of the outer ring ejector tube and the wall of the second hole using the second annular elastic ring, effectively prevents liquid from seeping into the mounting cavity from the second hole. This not only avoids liquid entering the mounting cavity and affecting the temperature sensing element's detection results but also reduces the possibility of safety risks.

[0017] For example, a second groove is provided on the outer ring of the second annular elastic ring, and a portion of the liquid-collecting tray is engaged in the second groove. This arrangement not only facilitates installation and disassembly but also ensures that the second annular elastic ring can be stably fixed between the outer wall of the outer ring ejector tube and the wall of the second hole.

[0018] For example, a support is provided below the liquid collection tray. The inner and outer ring ejector tubes are positioned by the support. The outer ring of the second annular elastic ring extends outward to form a support section. The support section has a first end and a second end. The first end abuts against the upper surface of the support, and the lower surface of the liquid collection tray abuts against the second end. With this arrangement, the support section is supported between the support and the liquid collection tray, thereby ensuring that the second annular elastic ring can be stably fixed between the outer wall surface of the outer ring ejector tube and the wall of the second hole.

[0019] For example, a bracket is provided below the liquid-holding tray, and the inner and outer ring ejector tubes are positioned by the bracket, with the temperature sensing element in surface contact with the bracket. With this configuration, since the inner and outer ring ejector tubes are positioned by the bracket, they can conduct heat to the bracket. Measuring the temperature of the bracket allows for the detection of the temperatures of the inner and outer ring ejector tubes. The surface contact between the temperature sensing element and the bracket facilitates installation. Furthermore, since the temperatures of the inner and outer ring ejector tubes are related to the temperature of the pot bottom, sensing the temperature of the bracket (i.e., the temperatures of the inner and outer ring ejector tubes) through the temperature sensing element allows for the detection of the pot bottom temperature (i.e., indirect detection of the pot temperature). The temperature sensing element's location below the liquid-holding tray not only prevents it from being affected by the flame, ensuring accurate 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 stove's applicability.

[0020] For example, the bracket has a surface to be measured, and the temperature sensing element has a contact plane that is in contact with the surface to be measured. This arrangement ensures that the temperature sensing element and the bracket form surface contact, ensuring that the temperature sensing element can accurately detect the temperature of the bracket through the contact plane.

[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 A perspective view of a stove as an exemplary embodiment of the present invention;

[0025] Figure 2 for Figure 1 A cross-sectional view of the stove shown;

[0026] Figure 3 for Figure 2 Enlarged view of section A;

[0027] Figure 4 for Figure 2 A three-dimensional view of the liquid-holding tray shown;

[0028] Figure 5 for Figure 3 A three-dimensional view of the second annular elastic ring shown;

[0029] Figure 6 for Figure 2 A 3D view of the bracket shown;

[0030] Figure 7 for Figure 2 The image shows a three-dimensional view of the temperature sensing element.

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

[0032] 1. Stove; 10. Bottom shell; 110. Mounting cavity; 120. Opening; 20. Panel; 210. Through hole; 30. Liquid tray; 310. Liquid chamber; 320. Through hole; 321. First hole; 322. Second hole; 330. Flow guide; 40. Injector tube; 410. Inner ring injector tube; 420. Outer ring injector tube; 50. Temperature sensing element; 510. Contact surface; 520. Sheet-like part; 530, Lead wire section; 531, Probe body; 532, Signal transmission line; 60, Leak-proof structure; 610, First leak-proof structure; 611, First flange; 620, Second leak-proof structure; 621, Second annular elastic ring; 6211, Support section; 6211a, First end; 6211b, Second end; 70, Bracket; 710, Surface to be tested; 720, Plate-shaped body; 730, Support foot. Detailed Implementation

[0033] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0034] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0035] This utility model provides a stove, including but not limited to a gas stove or a natural gas stove. The following will describe in detail one such stove according to an embodiment of this utility model with reference to the accompanying drawings.

[0036] See also Figure 1 and Figure 2The cooktop 1 may include a bottom shell 10, a panel 20, a liquid tray 30, an ejector tube 40, and a temperature sensing element 50 for sensing the temperature of the ejector tube 40. It should be noted that the sensing can be direct or indirect. In direct sensing, the temperature sensing element 50 is in contact with the ejector tube 40; in indirect sensing, the temperature sensing element 50 is not in contact with the ejector tube 40, but directly senses the temperature of the connecting part in contact with the ejector tube 40. The ejector tube 40 may be made of a thermally conductive material, such as metal or other materials with good thermal conductivity, to facilitate the temperature sensing element 50 in sensing the temperature of the ejector tube 40. The bottom shell 10 may form a mounting cavity 110 with an opening 120. The panel 20 may cover the opening 120, and the panel 20 may have a through hole 210. The liquid tray 30 may be supported on the panel 20 and cover the through hole 210. The liquid-holding tray 30 can be connected to the panel 20 by adhesive bonding, snap-fit ​​connection, etc., to ensure the stability of the connection between the liquid-holding tray 30 and the panel 20. The liquid-holding tray 30 can enclose a liquid-holding cavity 310, and a through hole 320 can be provided on the liquid-holding tray 30. The ejector tube 40 can be inserted through the through hole 320. Understandably, a part of the ejector tube 40 can be placed outside the mounting cavity 110, and another part can be placed inside the mounting cavity 110. A leak-proof structure 60 can be provided at the through hole 320. The mounting cavity 110 can be isolated from the liquid-holding cavity 310 by the leak-proof structure 60. The temperature sensing element 50 can be located inside the mounting cavity 110.

[0037] The stove 1 of this utility model, on the one hand, is provided with a temperature sensing element 50 for sensing the temperature of the ejector tube 40. Since the temperature of the ejector tube 40 is related to the temperature of the bottom of the pot, the temperature sensing element 50 is placed in the mounting cavity 110. By sensing the temperature of the ejector tube 40 through the temperature sensing element 50, the temperature of the bottom of the pot can be detected (i.e., the temperature of the pot is indirectly detected). This not only prevents the temperature sensing element 50 from being affected by the flame and ensures the accuracy of temperature detection, but also avoids interference between the temperature sensing element 50 and the pot, thereby expanding the types of pots that can be used on the stove 1 and broadening the applicability of the stove 1. On the other hand, by providing a leak-proof structure 60, the liquid collected in the liquid-holding cavity 310 can be effectively prevented from seeping into the mounting cavity 110 through the through hole 320. This not only prevents the liquid from entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks.

[0038] In an embodiment not shown in the figure, a seal may be provided between the liquid tray 30 and the panel 20 to prevent liquid from flowing into the mounting cavity 110 from the through hole 210. The seal may be made of rubber, which has good resilience, is easy to process, and is inexpensive, thus saving processing costs. Of course, the seal may also be made of other materials, as long as the sealing performance is met.

[0039] For example, in a direction perpendicular to the panel 20, the liquid collection tray 30 may have a flange formed around the perforation 320. The flange may extend beyond the upper surface of the liquid collection tray 30. The flange may form at least a partial leak-proof structure 60. Thus, on the one hand, by blocking the liquid within the liquid collection cavity 310 through the flange, liquid can be effectively prevented from seeping into the mounting cavity 110 from the perforation 320, which not only avoids liquid entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks; on the other hand, the flange can be achieved through processes such as stamping or bending, which has a low manufacturing cost, thereby saving manufacturing costs.

[0040] For example, an annular elastic ring can be provided between the outer wall of the ejector tube 40 and the wall of the through hole 320. The annular elastic ring can form at least a partial leak-proof structure 60. In this way, by sealing the outer wall of the ejector tube 40 and the wall of the through hole 320 with the annular elastic ring, liquid can be effectively prevented from seeping into the mounting cavity 110 from the through hole 320. This not only avoids liquid entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks.

[0041] See also Figures 2 to 4 The liquid collection tray 30 may have a guide portion 330 protruding in the direction away from the mounting cavity 110, and the through hole 320 may be located on the guide portion 330. When liquid drips onto the guide portion 330, it can be guided into the liquid collection cavity 310 through the guide portion 330, reducing the amount of liquid at the through hole 320, thereby preventing liquid from entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50. The guide portion 330 includes, but is not limited to, a hemispherical protrusion, a protrusion with an inclined surface, etc., to ensure that the liquid can flow into the liquid collection cavity 310 along the surface of the guide portion 330.

[0042] See again Figures 2 to 4The ejector tube 40 may have an inner ring ejector tube 410 and an outer ring ejector tube 420. The through hole 320 may have a first hole 321 and a second hole 322. The first hole 321 may be closer to the center of the liquid tray 30 than the second hole 322. The inner ring ejector tube 410 may be inserted through the first hole 321. The outer ring ejector tube 420 may be inserted through the second hole 322. Understandably, the inner ring ejector tube 410 may be closer to the center of the burner in the stove 1 than the outer ring ejector tube 420. The central position of the inner ring ejector tube 410 facilitates centralized flame control, while the outer ring ejector tube 420, being farther from the center of the burner than the inner ring ejector tube 410, helps to expand the combustion range. To ensure the integrity of the stove 1, the first hole 321 on the liquid tray 30 for inserting the inner ring ejector tube 410 may be closer to the center of the liquid tray 30 than the second hole 322 for inserting the outer ring ejector tube 420. The leak-proof structure 60 may include a first leak-proof structure 610 and a second leak-proof structure 620. The first leak-proof structure 610 may be located at the first hole 321. The second leak-proof structure 620 may be located at the second hole 322. Thus, the first leak-proof structure 610 prevents liquid collected in the liquid-containing cavity 310 from seeping into the mounting cavity 110 through the first hole 321, and the second leak-proof structure 620 prevents liquid collected in the liquid-containing cavity 310 from seeping into the mounting cavity 110 through the second hole 322. This not only prevents liquid from entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks.

[0043] See again Figures 2 to 4 In a direction perpendicular to the panel 20, the liquid-collecting tray 30 may have a first flange 611 formed around the first hole 321. The first flange 611 may be higher than the upper surface of the liquid-collecting tray 30. The first flange 611 may form a first leak-proof structure 610. Understandably, the first flange 611 and the liquid-collecting tray 30 may be an integral structure. In this way, on the one hand, by blocking the liquid in the liquid-collecting cavity 310 through the first flange 611, the liquid can be effectively prevented from seeping into the mounting cavity 110 from the first hole 321, which not only avoids the liquid entering the mounting cavity 110 from affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks; on the other hand, the first flange 611 can be made by processes such as stamping or bending, which has a low manufacturing cost, thereby saving manufacturing costs. Furthermore, the outer wall surface of the first flange 611 can be inclined relative to the upper surface of the liquid tray 30, or the first flange 611 can be arc-shaped, ensuring that the outer wall surface of the first flange 611 can guide the liquid into the liquid tray 310, further effectively preventing the liquid from seeping into the mounting cavity 110 from the first hole 321 position. This not only further avoids the liquid entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also further reduces the possibility of safety risks.

[0044] See again Figures 2 to 4The first flange 611 can have a height H, which can be 1mm to 4mm, for example, 1mm, 2.5mm, 3mm, 4mm, etc. When the height H is within this range, the first flange 611 effectively blocks the liquid within the liquid-containing cavity 310, effectively preventing liquid from seeping into the mounting cavity 110 from the first hole 321. This not only avoids liquid entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks. In one embodiment of this utility model, the height H is 2.5mm, which effectively ensures the accuracy of the detection results of the temperature sensing element 50.

[0045] In an embodiment not shown in the figure, a first annular elastic ring can be provided between the outer wall of the inner ring ejector tube 410 and the wall of the first hole 321. The first annular elastic ring can form a first leak-proof structure 610. The first annular elastic ring can be made of rubber, which has good resilience, is easy to process, and is inexpensive, saving processing costs. Of course, the first annular elastic ring can also be made of other materials, as long as the sealing performance is met. The shape of the first annular elastic ring can be similar to the shape of the first hole 321 and the outer wall of the inner ring ejector tube 410 for better sealing. In this way, by sealing the outer wall of the inner ring ejector tube 410 and the wall of the first hole 321 with the first annular elastic ring, liquid can be effectively prevented from seeping into the mounting cavity 110 from the first hole 321. This not only avoids liquid entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks.

[0046] For example, a first groove may be provided on the outer ring of the first annular elastic ring. A portion of the liquid collection tray 30 may be engaged in the first groove. Furthermore, a limiting section may extend outward from the outer ring of the first annular elastic ring, and the limiting section supports the surface of the liquid collection tray 30. When the liquid collection tray 30 has a certain thickness, a first groove may also be provided on the wall of the first hole 321, and a groove mating portion may extend outward from the outer ring of the first annular elastic ring, which can mate with the first groove. This not only facilitates installation and disassembly but also ensures that the first annular elastic ring can be stably fixed between the outer wall of the inner ring ejector tube 410 and the wall of the first hole 321.

[0047] For example, a support 70 may be provided below the liquid collection tray 30. The inner ring ejector tube 410 and the outer ring ejector tube 420 can be positioned by the support 70. The outer ring of the first annular elastic ring can extend outward to form a support portion. The support portion can have a first abutment end and a second abutment end. The first abutment end can abut against the upper surface of the support 70. The lower surface of the liquid collection tray 30 can abut against the second abutment end. In this way, the support portion is supported between the support 70 and the liquid collection tray 30, thereby ensuring that the first annular elastic ring can be stably fixed between the outer wall surface of the inner ring ejector tube 410 and the hole wall of the first hole 321. In addition, the first annular elastic ring can also extend in a direction perpendicular to the panel 20 to be supported on the support 70, which can also ensure that the first annular elastic ring is stably fixed between the outer wall surface of the inner ring ejector tube 410 and the hole wall of the first hole 321.

[0048] In an embodiment not shown in the figure, a second flange may be formed around the second hole 322 in a direction perpendicular to the panel 20. The second flange may be higher than the upper surface of the liquid-collecting tray 30. The second flange may form a second leak-proof structure 620. Understandably, the second flange and the liquid-collecting tray 30 may be an integral structure. In this way, on the one hand, by blocking the liquid in the liquid-collecting cavity 310 by the second flange, the liquid can be prevented from seeping into the mounting cavity 110 from the second hole 322, which not only avoids the liquid entering the mounting cavity 110 from affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks; on the other hand, the second flange can be realized by processes such as stamping or bending, which has a low manufacturing cost, thereby saving manufacturing costs. Furthermore, the outer wall of the second flange can be inclined relative to the upper surface of the liquid tray 30. The outer wall of the second flange can guide the liquid into the liquid cavity 310, further effectively preventing the liquid from seeping into the mounting cavity 110 from the second hole 322 position, thereby further avoiding the liquid entering the mounting cavity 110 and affecting the detection result of the temperature sensing element 50.

[0049] For example, the second flange can have a height H, which can be 1mm to 4mm, such as 1mm, 2.5mm, 3mm, 4mm, etc. Understandably, the height range of the second flange can be the same as the height range of the first flange 611. When the height H is within this range, it ensures that the second flange can effectively block the liquid within the liquid-containing cavity 310, effectively preventing liquid from seeping into the mounting cavity 110 from the second hole 322. This not only avoids liquid entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks. In one embodiment of this utility model, the height H is 2.5mm, which effectively ensures the accuracy of the detection results of the temperature sensing element 50.

[0050] See also Figures 2 to 5A second annular elastic ring 621 can be provided between the outer wall of the outer ring ejector tube 420 and the wall of the second hole 322. The second annular elastic ring 621 can form a second leak-proof structure 620. The material of the second annular elastic ring 621 can be rubber, which has good resilience, is easy to process, and is inexpensive, saving processing costs. Of course, the second annular elastic ring 621 can also be made of other materials, as long as the sealing performance is met. The shape of the second annular elastic ring 621 can be similar to the shape of the second hole 322 and the outer wall of the outer ring ejector tube 420 for better sealing. In this way, by sealing the space between the outer wall of the outer ring ejector tube 420 and the wall of the second hole 322 through the second annular elastic ring 621, liquid can be effectively prevented from seeping into the mounting cavity 110 from the second hole 322. This not only avoids liquid entering the mounting cavity 110 and affecting the detection results of the temperature sensing element 50, but also reduces the possibility of safety risks.

[0051] In an embodiment not shown in the figure, a second groove may be provided on the outer ring of the second annular elastic ring 621. A portion of the liquid collection tray 30 may be engaged in the second groove. Furthermore, the outer ring of the second annular elastic ring 621 may also extend outwards to form a limiting section, which supports the surface of the liquid collection tray 30. When the liquid collection tray 30 has a certain thickness, a second groove may also be provided on the wall of the second hole 322, and the outer ring of the second annular elastic ring 621 may extend outwards to form a groove mating portion, which can mate with the second groove. This not only facilitates installation and disassembly but also ensures that the second annular elastic ring 621 can be stably fixed between the outer wall of the outer ring ejector tube 420 and the wall of the second hole 322.

[0052] See also Figure 2 , Figure 3 and Figure 5 A support 70 can be provided below the liquid collection tray 30. The inner ring ejector tube 410 and the outer ring ejector tube 420 can be positioned by the support 70. The outer ring of the second annular elastic ring 621 can extend outward to form a support section 6211. The support section 6211 can have a first end 6211a and a second end 6211b. The first end 6211a can abut against the upper surface of the support 70. The lower surface of the liquid collection tray 30 can abut against the second end 6211b. In this way, the support section 6211 is supported between the support 70 and the liquid collection tray 30, thereby ensuring that the second annular elastic ring 621 can be stably fixed between the outer wall surface of the outer ring ejector tube 420 and the hole wall of the second hole 322. In addition, the second annular elastic ring 621 can also extend in a direction perpendicular to the panel 20 to be supported on the support 70, which can also ensure that the second annular elastic ring 621 is stably fixed between the outer wall surface of the outer ring ejector tube 420 and the hole wall of the second hole 322.

[0053] See also Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 A support 70 can be installed below the liquid-holding tray 30. The inner ring ejector tube 410 and the outer ring ejector tube 420 can be positioned by the support 70. The temperature sensing element 50 can form surface contact with the support 70. The support 70 can also be made of a thermally conductive material, such as metal or other materials with good heat transfer properties. Thus, since the inner ring ejector tube 410 and the outer ring ejector tube 420 are positioned by the bracket 70, the inner ring ejector tube 410 and the outer ring ejector tube 420 can conduct heat to the bracket 70. Measuring the temperature of the bracket 70 can realize the detection of the temperature of the inner ring ejector tube 410 and the outer ring ejector tube 420. The temperature sensing element 50 forms a surface contact with the bracket 70, which is easier to install. Since the temperature of the inner ring ejector tube 410 and the outer ring ejector tube 420 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 70 (i.e., the temperature of the inner ring ejector tube 410 and the outer ring ejector tube 420) by the temperature sensing element 50 (i.e., indirectly detecting the temperature of the pot). The temperature sensing element 50 is located below the liquid tray 30, which not only prevents the temperature sensing element 50 from being affected by the flame and ensures the accuracy of temperature detection, but also avoids interference between the temperature sensing element 50 and the pot, thereby expanding the types of pots that can be placed on the stove 1 and expanding the applicability of the stove 1.

[0054] Furthermore, the bracket 70 may have a plate-shaped body 720 and legs 730. The plate-shaped body 720 may be connected to the inner ring ejector tube 410 and the outer ring ejector tube 420, and the legs 730 may be used to support the plate-shaped body 720, thereby allowing the inner ring ejector tube 410 and the outer ring ejector tube 420 to be positioned by the bracket 70. The temperature sensing element 50 may form surface contact with the plate-shaped body 720, making installation easier.

[0055] See also Figure 2 , Figure 3 , Figure 6 and Figure 7 The support 70 may have a surface 710 to be measured. Understandably, the surface 710 to be measured may be located on the plate-shaped body 720. The temperature sensing element 50 may have a contact plane 510. The contact plane 510 may be in contact with the surface 710 to be measured. This ensures that the temperature sensing element 50 and the support 70 form surface contact, ensuring that the temperature sensing element 50 can accurately detect the temperature of the support 70 through the contact plane 510.

[0056] The temperature sensing element 50 can be connected to the bracket 70 via fasteners to ensure a tight fit between the contact plane 510 and the surface to be measured 710. This ensures the stability of the connection between the temperature sensing element 50 and the bracket 70 and guarantees good surface contact. The fasteners can be screws, bolts, etc. In embodiments not shown, the temperature sensing element 50 can also be connected to the bracket 70 by other means, such as welding, riveting, gluing, or snap-fit ​​connection.

[0057] Specifically, refer to the following again Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 The temperature sensing element 50 can be a temperature sensor. The temperature sensing element 50 may have a sheet-like portion 520 and a lead portion 530. The sheet-like portion 520 may be made of a thermally conductive material, such as metal or other materials with good thermal conductivity. The contact plane 510 may be located on the sheet-like portion 520 to ensure that the temperature sensing element 50 can accurately detect the temperature of the bracket 70 through the contact plane 510. The lead portion 530 may include a probe body 531 connected to the sheet-like portion 520. The probe body 531 may contain a negative temperature coefficient thermistor, etc., without limitation, as long as it can convert temperature information into other output or judgment signals. In this way, the temperature sensor 50 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.

[0058] 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 70 will also rise rapidly, causing the temperature change rate of the negative temperature coefficient thermistor to increase sharply.

[0059] 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-heating state. NTC thermistors respond quickly to temperature changes and have high sensitivity, 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 costs of cookware 1, thereby improving its reliability.

[0060] In some embodiments, the probe body 531 may contain a thermally conductive medium. This allows the temperature of the support 70 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 531 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.

[0061] Furthermore, the lead portion 530 may also include a signal transmission line 532 connected to the end of the probe body 531 away from the sheet portion 520. This not only facilitates the conversion of the temperature information collected by the sheet portion 520 into an output signal for transmission, but also prevents the signal transmission line 532 from being affected by high temperatures, as it is relatively far from the sheet portion 520. Specifically, the signal transmission line 532 may be covered with a protective sleeve. The protective sleeve further prevents high temperatures from affecting the signal transmission line 532 and also avoids the problem of the signal transmission line 532 being easily damaged when exposed.

[0062] In an embodiment not shown, the end of the signal transmission line 532 furthest from the probe body 531 can be connected to a controller. The temperature information collected by the temperature sensing element 50 by the plate-shaped portion 520 is converted into a signal by a negative temperature coefficient thermistor and transmitted to the controller via the signal transmission line 532. The controller can control the working state of the stove 1 based on this signal. When the controller determines, based on this signal, that the stove 1 is in a situation such as dry burning of the pot, accidental flameout, or prolonged high flame without placing the pot on it, it can immediately cut off the gas supply, causing the stove 1 to shut off and avoiding safety hazards.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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, characterized in that, It includes a bottom shell, a panel, a liquid tray, an ejector tube, and a temperature sensing element for sensing the temperature of the ejector tube; The bottom shell forms an installation cavity with an opening; The panel covers the opening, and the panel has through holes; The liquid-holding tray is supported on the panel and covers the through hole. The liquid-holding tray forms a liquid-holding cavity and is provided with a through hole. The ejector tube passes through the through hole; The perforation hole is equipped with a leak-proof structure, the mounting cavity is isolated from the liquid-containing cavity by the leak-proof structure, and the temperature sensing element is located inside the mounting cavity.

2. The stove according to claim 1, characterized in that, In a direction perpendicular to the panel, the liquid collection tray has a flange formed around the perforation, the flange being higher than the upper surface of the liquid collection tray, and the flange forming at least part of the leak-proof structure.

3. The stove according to claim 1, characterized in that, An annular elastic ring is provided between the outer wall of the ejector tube and the wall of the through hole, and the annular elastic ring forms at least part of the leak-proof structure.

4. The stove according to claim 1, characterized in that, The ejector tube has an inner ring ejector tube and an outer ring ejector tube. The through hole has a first hole and a second hole. The first hole is closer to the center of the liquid tray than the second hole. The inner ring ejector tube passes through the first hole, and the outer ring ejector tube passes through the second hole. The leak-proof structure includes a first leak-proof structure and a second leak-proof structure. The first leak-proof structure is located at the first hole, and the second leak-proof structure is located at the second hole.

5. The stove according to claim 4, characterized in that, In a direction perpendicular to the panel, the liquid collection tray has a first flange formed around the first hole. The first flange is higher than the upper surface of the liquid collection tray, and the first flange forms the first leak-proof structure.

6. The stove according to claim 5, characterized in that, The first flange has a height H, which is 1mm to 4mm.

7. The stove according to claim 4, characterized in that, A first annular elastic ring is provided between the outer wall of the inner ring ejector tube and the wall of the first hole, and the first annular elastic ring forms the first leak-proof structure.

8. The stove according to claim 7, characterized in that, A first groove is provided on the outer ring of the first annular elastic ring, and a portion of the liquid-collecting tray is engaged in the first groove.

9. The stove according to claim 4, characterized in that, In a direction perpendicular to the panel, the liquid collection tray has a second flange formed around the second hole. The second flange is higher than the upper surface of the liquid collection tray, and the second flange forms the second leak-proof structure.

10. The stove according to claim 9, characterized in that, The second flange has a height H, which is 1mm to 4mm.

11. The stove according to claim 4, characterized in that, A second annular elastic ring is provided between the outer wall of the outer ring ejector tube and the wall of the second hole, and the second annular elastic ring forms the second leak-proof structure.

12. The stove according to claim 11, characterized in that, A second groove is provided on the outer ring of the second annular elastic ring, and a portion of the liquid-collecting tray is engaged in the second groove.

13. The stove according to claim 11, characterized in that, A support is provided below the liquid collection tray. The inner ring ejector tube and the outer ring ejector tube are positioned by the support. The outer ring of the second annular elastic ring extends outward to form a support section. The support section has a first end and a second end. The first end abuts against the upper surface of the support, and the lower surface of the liquid collection tray abuts against the second end.

14. The stove according to claim 4, characterized in that, A support is provided below the liquid-holding tray, and the inner ring ejector tube and the outer ring ejector tube are positioned by the support. The temperature sensing element forms surface contact with the support.

15. The stove according to claim 14, characterized in that, The bracket has a surface to be measured, and the temperature sensing element has a contact plane that is in contact with the surface to be measured.

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