Dry-burning-resistant sensor assembly and gas stove

Abstract

The utility model relates to the technical field of household appliances, and discloses an anti-dry burning sensor assembly and a gas stove, the anti-dry burning sensor assembly comprises a fixed support, a temperature sensor and an elastic piece, the fixed support comprises a fixed seat and a fixed cover plate which are in butt joint; the peripheral side wall of the temperature sensor is provided with a spherical protruding part, and the spherical protruding part is clamped in a clamping hole formed by the butt joint of the fixed seat and the fixed cover plate. A certain gap is formed between the peripheral side wall of the temperature sensor and the inner wall of the clamping hole, so that the temperature sensor is allowed to incline at a small angle when being subjected to external force; and the elastic piece is connected with the bottom end of the temperature sensor and is used for keeping the temperature sensor in a vertical state after the external force is removed. According to the dry-burning-resistant sensor assembly, the temperature sensor and the fixing support are in spherical fit, when the cookware is obliquely placed, the temperature sensor can incline and keep close contact with the bottom of the cookware, and the problem that the dry-burning-resistant performance fails due to the fact that the cookware inclines is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to an anti-dry-burning sensor component. Background Art

[0002] In existing household gas stoves, the dry-boil prevention function has become an important technical means to improve kitchen safety. To achieve this function, most gas stoves are equipped with a dry-boil prevention sensor to monitor the temperature of the bottom of the pot in real time. If abnormally high temperature or dry-boil is detected, the gas supply will be automatically cut off, thus preventing safety accidents such as fires.

[0003] Currently, anti-dry burn sensors in household gas cookers are typically mounted on the burner or base using a bracket. For example, utility model patent CN207849444U provides a temperature sensor bracket that secures the temperature sensor by clamping a first bracket and a second bracket together. This not only simplifies the bracket structure and facilitates installation, but also ensures the vertical fixation of the temperature sensor. It also reduces the size and space occupied by the bracket, facilitating air circulation and improving gas mixing within the burner's central through-hole.

[0004] However, in practice, this mounting method still has some shortcomings. In particular, when the pot is tilted, the sensor may not fully contact the bottom of the pot, resulting in the sensor being unable to accurately measure the temperature of the pot bottom, which in turn affects the accuracy and reliability of the dry-boil prevention function. Furthermore, existing sensor mounting brackets typically only allow the sensor to move vertically, making it unable to adapt to complex situations such as tilted pots, thus limiting the effectiveness of the dry-boil prevention function.

[0005] Therefore, in response to these problems existing in the existing technology, it is necessary to improve and optimize the sensor fixing bracket to improve the adaptability and reliability of the anti-dry burning function and ensure that dry burning accidents can be effectively prevented under various usage conditions. Utility Model Content

[0006] Based on the technical problem in the prior art that the anti-dry-boiling sensor cannot accurately measure the temperature when the cookware is placed crookedly, the utility model provides an anti-dry-boiling sensor assembly. By making the temperature sensor and the fixed bracket fit together in a spherical shape, the assembly can tilt when the cookware is placed crookedly and maintain close contact with the bottom of the cookware, thereby effectively improving the problem of anti-dry-boiling performance failure caused by the crooked cookware.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0008] An anti-dry-burn sensor assembly, comprising:

[0009] The fixing bracket includes a fixing base and a fixing cover plate connected to each other; the fixing base is provided with a first clamping groove, the fixing cover plate is provided with a second clamping groove, and the first clamping groove and the second clamping groove are connected to form a clamping hole;

[0010] The temperature sensor has a spherical protrusion on its outer side wall, and the spherical protrusion is clamped in the clamping hole; a certain gap is left between the outer side wall of the temperature sensor and the inner wall of the clamping hole to allow the temperature sensor to tilt at a slight angle when subjected to external force;

[0011] An elastic member is connected to the bottom end of the temperature sensor and is used to keep the temperature sensor in a vertical state after the external force is removed.

[0012] In some embodiments, the fixing seat and the fixing cover are connected via screws or a snap-fit ​​structure.

[0013] In some embodiments, the elastic member is a spring, which is vertically arranged on the lower side of the temperature sensor, the top end of the spring is fixedly connected to the bottom end of the temperature sensor, and the bottom end of the spring is used to be fixed to the bottom shell or burner of the gas stove.

[0014] In some embodiments, the gap between the outer peripheral side wall of the temperature sensor and the inner wall of the clamping hole ranges from 0.5 mm to 2 mm.

[0015] In some embodiments, the maximum tilt angle of the temperature sensor when subjected to external force is 10°.

[0016] In some embodiments, the inner wall of the clamping hole on the upper side and / or the lower side of the spherical fitting portion is a tapered surface.

[0017] In some embodiments, a high-temperature resistant lubricating layer is coated or smoothed between the spherical protrusion and the spherical fitting portion.

[0018] In some embodiments, the length of the fixing seat is greater than the length of the fixing cover plate, and the fixing seat is L-shaped as a whole. A fixing portion is provided at the lower end of the fixing seat for fixing to the burner or bottom shell of the gas stove.

[0019] The utility model also includes a gas stove, comprising a bottom shell, a burner arranged on the bottom shell, a fire cover assembly and the above-mentioned anti-dry burning sensor assembly, wherein the top of the temperature sensor passes through the fire cover assembly.

[0020] In some embodiments, the fixing seat is fixed on the burner, and the lower end of the elastic member is fixedly connected to the bottom shell.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] The above-mentioned anti-dry-boiling sensor assembly, through the spherical fit between the temperature sensor and the fixed bracket, allows the temperature sensor to tilt freely within a certain range when subjected to external force. When the pot is placed crookedly, it can maintain close contact with the bottom of the pot, effectively improving the problem of failure of the anti-dry-boiling performance caused by the crooked pot.

[0023] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the structure of the gas stove of the present utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the anti-dry burning sensor assembly of the utility model;

[0027] Figure 3 This is a right side view of the anti-dry-burn sensor assembly of the utility model;

[0028] Figure 4 for Figure 3 AA cross-section of

[0029] Description of reference numerals:

[0030] 100-burner;

[0031] 200-fire cover assembly;

[0032] 300-anti-dry-burn sensor assembly;

[0033] 310--fixed seat; 311-fixed part;

[0034] 320-fixed cover;

[0035] 330-temperature sensor; 331-spherical protrusion;

[0036] 340-Elastic parts. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections. A person of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on the specific circumstances. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any appropriate manner in any one or more embodiments or examples.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0041] Reference Figure 2-Figure 4 , which is an embodiment of the anti-dry-burning sensor assembly of the present invention.

[0042] The anti-dry-heat sensor assembly 300 includes a fixing bracket, a temperature sensor 330 and an elastic member 340 .

[0043] The fixing bracket consists of a fixing base 310 and a fixing cover 320, which are connected by docking to form an integrated clamping structure. Specifically, the fixing base 310 has a first clamping groove, and the fixing cover 320 has a second clamping groove. The first and second clamping grooves dock to form a clamping hole for mounting the temperature sensor 330.

[0044] See also Figure 4The outer sidewall of the temperature sensor 330 is provided with a spherical protrusion 331. The spherical protrusion 331 is clamped in the clamping hole and spherically mates with a spherical mating portion on the inner wall of the clamping hole. This mating structure allows the temperature sensor 330 to tilt at a slight angle when subjected to external forces, and also acts as a position limiter.

[0045] Elastic member 340 is connected to the bottom end of temperature sensor 330. When the external force is removed, elastic member 340 is used to restore temperature sensor 330 to its vertical position. Through this structural design, temperature sensor 330 can flexibly adjust its position when subjected to external force and quickly return to its original position after the external force is removed, maintaining its monitoring effect.

[0046] The above-mentioned anti-dry-boiling sensor assembly 300, through the spherical fit between the temperature sensor 330 and the fixed bracket, allows the temperature sensor 330 to tilt freely within a certain range when subjected to external force. When the cookware is placed crookedly, it can maintain close contact with the bottom of the cookware, effectively improving the problem of failure of the anti-dry-boiling performance caused by the crooked cookware.

[0047] The fixing base 310 and the fixing cover 320 are connected by screws or a snap-fit ​​mechanism. The screw connection method is suitable for applications requiring high tightening force, ensuring that the components are not easily loosened in high-temperature or vibration environments. The snap-fit ​​mechanism provides convenient assembly and disassembly, suitable for applications requiring quick installation or maintenance. In this embodiment, the fixing base 310 and the fixing cover 320 are fixed together by screws, ensuring that the temperature sensor 330 is securely installed in the clamping hole.

[0048] In this embodiment, the elastic member 340 is a vertically arranged spring. The top of the spring is fixedly connected to the bottom of the temperature sensor 330, and the bottom is fixed to the bottom shell of the gas stove or the burner 100. The function of the spring is to absorb the external force through its elastic deformation when the temperature sensor 330 is tilted by an external force, and quickly restore the temperature sensor 330 to its original vertical state after the external force disappears. Because the spring has a strong elastic reset ability, it can ensure that the temperature sensor 330 maintains flexibility and accuracy when subjected to external interference. At the same time, the spring is arranged on the underside of the temperature sensor 330 to avoid the effects of high temperatures.

[0049] In this embodiment, the gap between the outer side wall of the temperature sensor 330 and the inner wall of the clamping hole ranges from 0.5 mm to 2 mm. This gap range ensures that the temperature sensor 330 can tilt flexibly when subjected to external force, and avoids the temperature sensor 330 shaking or falling off due to excessive gap.

[0050] Furthermore, the maximum tilt angle of the temperature sensor 330 when subjected to external force is limited to 10°. This tilt angle ensures that the sensor can generate sufficient tilt to respond to external changes when subjected to force, while avoiding measurement errors or damage caused by excessive tilt angles.

[0051] In this embodiment, see Figure 4 The inner walls of the clamping hole on the upper and lower sides of the spherical mating portion are designed as tapered surfaces B. When the temperature sensor 330 is tilted to its maximum angle by an external force, its outer peripheral sidewalls can fit tightly against the tapered surfaces, providing a stable support surface for the temperature sensor 330 while effectively limiting its excessive tilt, thereby ensuring measurement accuracy and reliability.

[0052] Furthermore, a high-temperature resistant lubricating layer or a smooth finish is applied between the spherical protrusion 331 and the spherical mating portion. The lubricating layer or smooth finish can reduce friction between the spherical mating portions, allowing the temperature sensor 330 to tilt more smoothly and quickly reset when subjected to external forces.

[0053] In this embodiment, the length of the fixing base 310 is greater than that of the fixing cover 320, and the fixing base 310 is L-shaped. A fixing portion 311 is provided at the lower end of the fixing base 310, which allows the entire assembly to be securely mounted to the burner 100 or the bottom shell of the gas stove via screws. The L-shaped structure of the fixing base 310 provides a larger mounting area and greater support for the sensor, allowing the anti-dry burn assembly to be more securely fixed to the gas stove, preventing displacement or loosening during operation and improving installation convenience.

[0054] See also Figure 1 The present invention also includes a gas stove. The gas stove includes a bottom housing (not shown), a burner 100, a fire cover assembly 200, and the aforementioned anti-dry-burn sensor assembly 300. The top of a temperature sensor 330 passes through the fire cover assembly 200 and can sense the temperature of the pot bottom. If the temperature is too high or abnormal, the temperature sensor 330 quickly responds and triggers the anti-dry-burn function, effectively preventing fires and other safety accidents.

[0055] The fixing seat 310 is fixed on the burner head 100 , and the lower end of the elastic member 340 is fixedly connected to the bottom shell, thereby ensuring the overall stability of the anti-dry burning sensor assembly 300 .

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. An anti-dry burning sensor assembly, characterized in that: include: The fixing bracket includes a fixing base and a fixing cover plate connected to each other; the fixing base is provided with a first clamping groove, the fixing cover plate is provided with a second clamping groove, and the first clamping groove and the second clamping groove are connected to form a clamping hole; The temperature sensor has a spherical protrusion on its outer side wall, which is clamped in the clamping hole and spherically engages with a spherical mating portion on the inner wall of the clamping hole; a certain gap is left between the outer side wall of the temperature sensor and the inner wall of the clamping hole to allow the temperature sensor to tilt at a slight angle when subjected to external force; An elastic member is connected to the bottom end of the temperature sensor and is used to keep the temperature sensor in a vertical state after the external force is removed.

2. The anti-dry burning sensor assembly according to claim 1, characterized in that: The fixing seat is connected to the fixing cover plate via screws or a snap-fit ​​structure.

3. The anti-dry burning sensor assembly according to claim 1, characterized in that: The elastic member is a spring, which is vertically arranged on the lower side of the temperature sensor. The top end of the spring is fixedly connected to the bottom end of the temperature sensor, and the bottom end of the spring is used to be fixed to the bottom shell or burner of the gas stove.

4. The anti-dry burning sensor assembly according to claim 1, characterized in that: The gap between the outer peripheral side wall of the temperature sensor and the inner wall of the clamping hole ranges from 0.5 mm to 2 mm.

5. The anti-dry burning sensor assembly according to claim 1, characterized in that: The maximum tilt angle of the temperature sensor when subjected to external force is 10°.

6. The anti-dry burning sensor assembly according to claim 5, characterized in that: The inner wall of the clamping hole on the upper side and / or the lower side of the spherical fitting portion is a tapered surface.

7. The anti-dry-burn sensor assembly according to claim 1, characterized in that: A high-temperature resistant lubricating layer is coated or smoothed between the spherical protrusion and the spherical matching portion.

8. The anti-dry-burn sensor assembly according to claim 1, characterized in that: The length of the fixing seat is greater than that of the fixing cover plate. The fixing seat is L-shaped as a whole. A fixing portion is provided at the lower end of the fixing seat for fixing to the burner or bottom shell of the gas stove.

9. A gas stove comprising a bottom shell, a burner and a fire cover assembly arranged on the bottom shell, characterized in that: It also includes the anti-dry burning sensor assembly according to any one of claims 1 to 8, wherein the top of the temperature sensor passes through the fire cover assembly.

10. The gas stove according to claim 9, characterized in that: The fixing seat is fixed on the burner head, and the lower end of the elastic member is fixedly connected to the bottom shell.

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