A liquid heater

Abstract

The utility model discloses a liquid heater belongs to the field of life electric appliances, has solved the problem that the detection probe of temperature sensor and the conduction spare are easy to appear unstable contact in the long -term use, and the technical scheme of solving this problem is that detection component includes mounting support, conduction spare and temperature sensor, and temperature sensor has detection probe and the flexible heat -conducting cover of covering in the outside of detection probe, and mounting support is equipped with at least two insertion holes, and after the flexible heat -conducting cover passes insertion hole, makes detection probe between two insertion holes, and conduction spare is fixed in the front of mounting support and presses the flexible heat -conducting cover fixed, makes conduction spare tightly stick the flexible heat -conducting cover of detection probe outside. The utility model is mainly used for improving the stability of the detection probe of temperature sensor and the conduction spare in the long -term use.

Description

Technical Field

[0001] This utility model relates to household appliances, and in particular to a liquid heater. Background Technology

[0002] Existing liquid heaters typically consist of two parts: a pot body and a base. The pot body is often made entirely of glass, while the base contains a heating module and a control module. The heating module generally uses a heating plate structure, and the control module mainly consists of a circuit board and a detection component. The detection component is usually located on the side wall of the base and needs to maintain close contact with the glass pot body to achieve the detection function. Taking the prior art with publication number CN222887562U as an example, it discloses a water temperature and water level detection structure for an all-glass health pot, specifically including a base and a glass pot placed on top of the base. A detection rear cover is installed on the rear side of the top of the base, and a detection front cover is installed on the front side of the detection rear cover. The detection front cover and the detection rear cover are slidably connected. A temperature sensing plate is installed on the front side of the detection front cover, which contacts the bottom of the glass pot. The temperature sensing plate is connected to a temperature sensor. A water detection plate is installed on the detection rear cover, and a water detection plate spring is provided on the front side of the water detection plate to abut against the detection front cover. However, this existing technology has significant drawbacks: the temperature sensor directly contacts the sensing element for heat conduction, lacking a reliable fixing structure to ensure stable contact during long-term use. This design easily leads to poor contact between the sensing element and the temperature sensor, hindering heat conduction and affecting the sensitivity and accuracy of temperature detection. For example, the installation method of the detection component in existing technology CN222533126U is also relatively simple; specifically, the temperature sensor is tightly connected (glued) to the inside of the heat-conducting top cover 111, lacking effective fixing and protection measures for the temperature sensor and its heat-conducting components. After the adhesive ages, the temperature sensor may shift or loosen during long-term use, further exacerbating the problem of inaccurate temperature measurement. To address these issues, there is an urgent need to develop a liquid heater with a stable and reliable detection structure. Utility Model Content

[0003] The purpose of this invention is to provide a liquid heater that solves the problem of unstable contact between the detection probe and the conductive component of a temperature sensor during long-term use, improves the stability of the detection probe and the conductive component of the temperature sensor during long-term use, and effectively ensures the sensitivity and accuracy of temperature detection.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a liquid heater, including a vessel body and a base, wherein the base is provided with a detection component for detecting temperature, the detection component including a mounting bracket, a conductive element and a temperature sensor, the temperature sensor having a detection probe and a flexible heat-conducting sleeve covering the outside of the detection probe, the mounting bracket having at least two insertion holes, the flexible heat-conducting sleeve passing through the insertion holes so that the detection probe is located between the two insertion holes, the conductive element being fixed to the front of the mounting bracket and pressing the flexible heat-conducting sleeve for fixation, so that the conductive element is tightly attached to the flexible heat-conducting sleeve on the outside of the detection probe.

[0005] By adopting the above technical solution, this utility model has the following advantages: By constructing a detection component structure with specific spatial constraints, stable contact between the conductive component and the temperature sensor is achieved. The mounting bracket serves as the basic support structure, and by setting two insertion holes to form the winding path of the flexible heat-conducting sleeve, the centered positioning of the detection probe is forcibly limited, avoiding poor contact caused by probe misalignment. The flexible heat-conducting sleeve adopts a wrap-around structure, achieving flexible contact compensation between the probe and the conductive component, and forming mechanical fixation through the double-hole winding to prevent displacement after long-term use. The conductive component adopts a front-press fitting method, forming surface contact pressure between the rigid contact surface and the flexible heat-conducting sleeve, eliminating assembly gaps while ensuring heat conduction efficiency. The combination of the insertion hole winding structure and press-fit fixation forms a three-dimensional spatial constraint, ensuring a gapless and continuous contact state between the conductive component and the detection probe.

[0006] Furthermore, the back of the conductive element is clamped to the front of the mounting bracket with a flexible heat-conducting sleeve to fix the detection probe.

[0007] The aforementioned technical solution addresses the unreliable contact issue between the temperature sensor and the conductive component caused by the unstable fixation of the flexible thermally conductive sleeve, thus preventing a decrease in temperature measurement sensitivity or failure after long-term use. The flexible thermally conductive sleeve is fixed using a clamping structure between the conductive component and the mounting bracket. Specifically, the back of the conductive component and the front of the mounting bracket form a clamping surface, pressing the flexible thermally conductive sleeve covering the detection probe tightly between them. This clamping method not only restricts the displacement of the flexible thermally conductive sleeve through a rigid contact surface but also increases the fixing area through surface contact, ensuring that the flexible thermally conductive sleeve maintains a tight fit with the conductive component even under long-term thermal deformation or mechanical vibration. This ensures that the temperature sensor continuously and stably senses temperature changes in the conductive component through the flexible thermally conductive sleeve. This clamping structure abandons the traditional fixation method that relies solely on elastic elements or adhesives, effectively solving the contact failure problem caused by creep of flexible materials through the rigid constraint of mechanical clamping.

[0008] Furthermore, the conductive component is provided with a snap fastener, and the mounting bracket is provided with a snap hole. The snap fastener passes through the snap hole and then bends to fix the conductive component.

[0009] The aforementioned technical solution addresses the problem of unreliable fixation between the conductive component and the mounting bracket, which leads to poor contact of the temperature sensor. Mechanical fixation of the conductive component is achieved through a mating structure of a snap-fit ​​tab and a snap-fit ​​hole. Specifically, the snap-fit ​​tab, as an extension of the conductive component, can bend and deform after passing through the pre-set snap-fit ​​hole on the mounting bracket, forming a physical limit. This bent snap-fit ​​tab and snap-fit ​​hole form an interlocking structure, effectively preventing displacement or loosening of the conductive component during long-term use. Compared to traditional screw fixing or adhesive methods, this structure not only simplifies the assembly process but also achieves a reliable fixing effect through the elastic deformation characteristics of the metal material itself, ensuring that the conductive component remains tightly attached to the flexible heat-conducting sleeve and maintaining the detection accuracy of the temperature sensor.

[0010] Furthermore, after the buckle is bent, the two ends of the flexible heat-conducting sleeve are pressed tightly against the back of the mounting bracket to fix the detection probe.

[0011] Using the aforementioned technical solution, another method is employed to address the problem of decreased temperature measurement sensitivity and insufficient accuracy caused by unreliable contact between the temperature sensor and the sensing element. A mechanical locking structure formed by bending the insert clips forcibly presses both ends of the flexible heat-conducting sleeve against the back of the mounting bracket. This bending action not only secures the conductive component but, more importantly, the continuous pressure generated by physical deformation creates a gapless contact surface between the flexible heat-conducting sleeve and the mounting bracket. Once the flexible heat-conducting sleeve is compressed, the detection probe encased within it cannot experience axial displacement or radial deflection, thus ensuring that the heat conduction path between the detection probe and the conductive component remains optimal. The bending angle and clamping force of the insert clips are specifically designed to avoid thermal conductivity degradation due to excessive compression of the flexible material and to eliminate the problem of increased thermal resistance caused by assembly gaps. Ultimately, this allows the temperature sensor's detection signal to accurately reflect the temperature changes of the conductive component in real time.

[0012] Furthermore, one end of the flexible heat-conducting sleeve passes through a socket from the back of the mounting bracket to the front of the mounting bracket and then through another socket back to the back of the mounting bracket, so that the detection probe is located between the two sockets; or, both ends of the flexible heat-conducting sleeve are respectively inserted into a socket from the front of the mounting bracket, so that the detection probe is located between the two sockets.

[0013] The aforementioned technical solution specifically addresses the insertion path of the flexible heat-conducting sleeve, achieving stable insertion of the flexible heat-conducting sleeve through two different methods. Ultimately, this ensures that the detection probe is positioned between the two insertion holes, guaranteeing that the detection probe can sense temperature stably, reliably, sensitively, and promptly.

[0014] Furthermore, the front of the mounting bracket is provided with a receiving groove, and two insertion holes are located in the receiving groove. The conductive element presses the detection probe into the receiving groove for positioning; or, a guide surface is provided between the edge of the insertion hole and the bottom surface of the receiving groove to facilitate the insertion of the flexible heat-conducting sleeve into the insertion hole.

[0015] The aforementioned technical solution further addresses the problem of poor contact between the temperature sensor and the conductive component due to unstable positioning of the detection probe on the mounting bracket. By creating a receiving groove on the front of the mounting bracket, a fixed space is provided for the detection probe and the flexible thermal conductive sleeve, ensuring that the contact area between the probe and the conductive component is precisely defined. The design of two insertion holes located within the receiving groove allows the flexible thermal conductive sleeve to form a specific orientation within the groove, preventing displacement caused by external interference. The action of the conductive component pressing the detection probe into the receiving groove achieves dual positioning through physical constraints: both the sidewall of the groove restricts lateral displacement of the probe, and the downward pressure of the metal component eliminates longitudinal gaps. The depth of the receiving groove matches the probe size, forming a three-dimensional positioning reference, ensuring a gapless thermal interface between the flexible thermal conductive sleeve and the conductive component, thereby improving the stability of temperature conduction and detection accuracy. The aforementioned technical solution addresses the positioning difficulties caused by frictional resistance when the flexible thermal conductive sleeve re-enters the insertion holes of the mounting bracket, thus ensuring stable contact between the detection probe and the conductive component. By setting a guide surface between the edge of the insertion hole and the bottom surface of the receiving groove, this structure guides the flexible thermal conductive sleeve to form a smooth transition path as it passes through the insertion hole. The inclined or curved design of the guide surface reduces the frictional resistance between the flexible thermal conductive sleeve and the edge of the insertion hole, preventing deformation or jamming of the flexible material during insertion and ensuring accurate positioning of the detection probe within the receiving groove. This guide structure allows the flexible thermal conductive sleeve to smoothly complete two insertion actions, ensuring that the detection probe is stably pressed between the conductive component and the mounting bracket, thereby achieving long-term reliable heat conduction between the temperature sensor and the conductive component.

[0016] Furthermore, the front of the mounting bracket is provided with a positioning groove, which surrounds the receiving groove, and the edge of the conductive element is provided with annular reinforcing ribs, which are installed in the positioning groove.

[0017] The aforementioned technical solution addresses the problem of unreliable temperature measurement caused by unstable contact between the conductive component and the detection probe. By incorporating a positioning groove surrounding the receiving recess, the conductive component is embedded within it, precisely limiting its position and ensuring uniform and stable contact pressure between it and the flexible thermally conductive sleeve on the outside of the detection probe. The positioning groove's structural design not only provides an installation reference for the conductive component but also, through its surrounding layout, ensures that the conductive component completely covers and presses against the detection probe within the receiving recess after installation, preventing displacement or loosening due to long-term use or external vibration. The cooperation between the conductive component and the positioning groove further enhances the rigidity of the overall structure, preventing poor contact caused by thermal expansion or mechanical deformation, ultimately achieving long-term reliability and accuracy in temperature detection.

[0018] Furthermore, an annular rib is formed between the positioning groove and the receiving groove. The annular rib protrudes relative to the bottom surface of the receiving groove, and the two insertion holes are located on opposite sides of the annular rib.

[0019] By employing the aforementioned technical solution, the problem of poor contact between the temperature sensor and the conductive component caused by unstable installation structure is further resolved, thereby improving the stability and accuracy of temperature detection. The annular rib structure formed between the positioning groove and the receiving groove ensures that the flexible heat-conducting sleeve is restrained as it passes through the insertion hole, preventing displacement or loosening during use. The design of the annular rib protruding relative to the bottom surface of the receiving groove provides localized compression to the flexible heat-conducting sleeve, enhancing its tightness of contact with the detection probe. The layout of the two insertion holes on opposite sides of the annular rib ensures the symmetry of the wire path for the flexible heat-conducting sleeve and, through the protruding feature of the annular rib, provides lateral constraint on the flexible heat-conducting sleeve, preventing displacement due to vibration or deformation during long-term operation of the temperature sensor, thus ensuring a continuous and stable heat conduction path between the conductive component and the detection probe. The annular rib also provides support and restraint to the edges of the conductive component, preventing excessive pressure on the detection probe during assembly and potential damage to the probe.

[0020] Furthermore, the mounting bracket includes a front bracket and a rear bracket, the front bracket is movably connected to the rear bracket and slides back and forth relative to the rear bracket, the rear bracket is fixed to the base, and an elastic element is provided between the front bracket and the rear bracket to keep the conductive element abutting against the outer wall of the kettle body; or, the mounting bracket includes a front bracket, a middle bracket and a rear bracket, the detection component includes a circuit board, the front bracket is fixed to the middle bracket and clamps and fixes the circuit board, the middle bracket is movably connected to the rear bracket, and an elastic element is provided between the middle bracket and the rear bracket to keep the conductive element abutting against the outer wall of the kettle body.

[0021] The aforementioned technical solution further addresses the problem of unreliable contact between the detection component and the kettle body, which leads to insensitive or inaccurate temperature measurement after long-term use. The combination of a split mounting bracket and an elastic element ensures continuous and stable contact between the detection component and the side wall of the kettle body. The sliding connection between the front and rear brackets allows the detection probe and conductive components to adaptively adjust to changes in the kettle body's position. The elastic element provides a counterforce to offset assembly gaps or thermal expansion and contraction deformation between the kettle body and the base, preventing contact pressure attenuation due to long-term use. In embodiments including a middle bracket, the fixed structure of the front and middle brackets clamps the circuit board, ensuring the stability of the electrical connection, while the elastic connection between the middle and rear brackets maintains the contact force between the detection probe and the kettle body. Both structures utilize mechanical compensation mechanisms to ensure that the heat conduction path between the temperature sensor and the conductive components remains in close contact, thereby improving detection reliability.

[0022] Furthermore, the kettle body is an all-glass kettle body, the base is provided with a heating plate, the kettle body is placed on the heating plate, and the conductive element remains in contact with the outer wall of the kettle body; or, the kettle body includes a glass kettle body and a heating base, the heating base is provided with an upper connector, the base is provided with a lower connector, the kettle body is placed on the base so that the upper connector and the lower connector are plugged in and electrically coupled, and the conductive element remains in contact with the outer wall of the glass kettle body.

[0023] The aforementioned technical solutions address the problem of unreliable contact between the conductive component and the outer wall of the kettle, which leads to insensitive or inaccurate temperature measurement. Stable contact between the conductive component and the outer wall of the glass kettle is achieved through two different kettle-base mating structures. The first solution uses an all-glass kettle body placed directly on the heating plate, with the conductive component continuously abutting against the outer wall of the kettle body. The thermal conductivity of the all-glass material allows heat to be transferred through the kettle body's side wall to the conductive component, avoiding temperature measurement deviations caused by separation of the kettle body from the heating plate's contact surface. The second solution divides the kettle body into a separate structure of a glass kettle body and a heating base. Electrical coupling is achieved through the insertion of upper and lower connectors. In this case, the conductive component still directly abuts against the outer wall of the glass kettle body, satisfying the installation requirements of the separate heating base while ensuring the relative position of the kettle body and the base is fixed through rigid connector insertion, thus maintaining the contact pressure between the conductive component and the glass kettle body. Both solutions use mechanical structure design to forcibly constrain the contact state between the conductive component and the glass kettle body, eliminating poor contact problems caused by loose components or assembly errors. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of a liquid heater according to the present invention;

[0026] Figure 2 This is a cross-sectional view of the base of a liquid heater according to the present invention;

[0027] Figure 3 This is an exploded view of a detection component in a liquid heater according to the present invention.

[0028] Figure 4 This is a front view of the mounting bracket in a liquid heater according to the present invention;

[0029] Figure 5 This is a rear view of the mounting bracket in a liquid heater according to the present invention;

[0030] Figure 6 This is a cross-sectional view (at the insertion hole) of the mounting bracket in a liquid heater according to this utility model;

[0031] Figure 7 This is a schematic diagram of the conductive element in a liquid heater according to the present invention. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0033] The terms "first," "second," etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects, not to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this utility model, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this utility model, "a plurality of" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist; for example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y and Z" means that all three of X, Y, and Z are included; "Contains X, Y or Z" means that one of X, Y, and Z is included; "Contains X, Y and / or Z" means that any one, two, or three of X, Y, and Z are included.

[0034] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0035] like Figures 1 to 7As shown, this utility model provides a liquid heater, including a pot body 100 and a base 200. The base 200 is provided with a detection component 300 for detecting temperature. The pot body 100 is an all-glass pot body. The base 200 is provided with a heating plate 21. The pot body 100 is placed on the heating plate 21. The detection component 300 includes a mounting bracket 31, a conductive element 32 and a temperature sensor 33. The conductive element 32 is kept in contact with the outer side wall of the pot body 100. The temperature sensor 33 has a detection probe 331 and a flexible heat-conducting sleeve 332 covering the outer side of the detection probe 331. The mounting bracket 31 is provided with at least two insertion holes 311. After the flexible heat-conducting sleeve 332 passes through the insertion holes 311, the detection probe 331 is located between the two insertion holes 311. The conductive element 32 is fixed to the front of the mounting bracket 31 and presses the flexible heat-conducting sleeve 332 for fixation, so that the conductive element 32 is in close contact with the flexible heat-conducting sleeve 332 on the outer side of the detection probe 331. Compared to existing technologies that use direct contact or adhesive bonding, this application utilizes a conductive element 32 to press and fix the flexible heat-conducting sleeve 332, ensuring that the conductive element 32 is tightly attached to the flexible heat-conducting sleeve 332 on the outside of the detection probe 331. This achieves a highly reliable fixing method. The mounting bracket 31 serves as the basic support structure, and two insertion holes 311 form the winding path of the flexible heat-conducting sleeve 332, forcibly limiting the centered positioning of the detection probe 331 and preventing poor contact caused by probe misalignment. The flexible heat-conducting sleeve 332 adopts a wrap-around structure, achieving flexible contact compensation between the probe and the conductive element 32, and forming a mechanical fixation through the double-hole winding to prevent displacement after long-term use. The conductive element 32 adopts a front-press fitting method, forming surface contact pressure between the rigid contact surface and the flexible heat-conducting sleeve 332. Utilizing the deformation capability of the flexible heat-conducting sleeve 332, it eliminates assembly gaps while ensuring heat conduction efficiency. The combination of the insertion hole 311 winding structure and press-fit fixation forms a three-dimensional spatial constraint, ensuring a gapless and continuous contact state between the conductive element 32 and the detection probe 331.

[0036] Mounting bracket 31 refers to the support structure that supports the detection component 300. It can be made of injection-molded plastic. The insertion holes 311 on the mounting bracket form the winding path of the flexible heat-conducting sleeve 332. The specific structure of the mounting bracket 31 will be described later. The conductive component 32 refers to the heat-conducting component that contacts the vessel body 100. It can be made of stamped aluminum or copper sheets, etc., and provides contact pressure through rigid pressing. The flexible heat-conducting sleeve 332 is generally made of PR (polypropylene), which both transfers heat and buffers mechanical stress, providing a certain degree of protection for the detection probe 331 and preventing damage during assembly. The insertion holes 311 are through holes opened on the mounting bracket 31. They can be rectangular holes with a diameter slightly larger than the cross-section of the flexible heat-conducting sleeve 332, forming a constraint point for the winding path of the flexible heat-conducting sleeve 332. Specifically, the spacing of the insertion holes 311 on the mounting bracket 31 matches the length of the flexible heat-conducting sleeve 332, forming a pre-tightening force after winding to prevent axial displacement of the detection probe 331 when the temperature changes. The press-fit surface of the conductive element 32 forms surface contact with the flexible heat-conducting sleeve 332, and the contact pressure is maintained evenly distributed through rigid support. Compared with the prior art, traditional structures only maintain contact through single-point fixing, spring pressing, or adhesive bonding, which cannot avoid stress relaxation or aging loosening after long-term use. Therefore, the above-mentioned combined structure of this application effectively avoids the contact failure between the temperature sensor 33 and the conductive element 32 caused by vibration and thermal expansion and contraction in the traditional solution, ensuring the stability and accuracy of temperature detection.

[0037] An all-glass kettle body refers to a container made entirely of glass, specifically high borosilicate glass, which offers uniform thermal conductivity and eliminates the interference of metal components in temperature transfer. The heating plate 21 is a heating element mounted on top of the base 200, typically an aluminum plate with an embedded heating element, directly supporting the all-glass kettle body 100 and transferring heat. The kettle body 100 rests directly on the surface of the heating plate 21. While the coefficient of thermal expansion of glass differs significantly from that of the metal heating plate 21, the heat from the glass sidewall is directly conducted to the conductive element 32 through continuous contact with the outer wall of the kettle body 100, preventing temperature measurement deviations caused by minute gaps between the heated kettle body 100 and the heating plate 21. The upper surface of the heating plate 21 can also be provided with positioning grooves for the kettle body 100, ensuring that the conductive element 32 remains in contact with the outer wall of the kettle body 100 after it has been rotated into position.

[0038] There are various ways in which the conductive element 32 presses down on the flexible heat-conducting sleeve 332 for fixation. For example, in one embodiment, the back of the conductive element 32 and the front of the mounting bracket 31 are used to clamp the flexible heat-conducting sleeve 332 to fix the detection probe 331. This solves the problem of unreliable contact between the temperature sensor 33 and the conductive element 32 due to the unstable fixation of the flexible heat-conducting sleeve 332, thereby avoiding a decrease in temperature measurement sensitivity or failure after long-term use. The flexible heat-conducting sleeve 332 is fixed by the clamping structure between the conductive element 32 and the mounting bracket 31. Specifically, the back of the conductive element 32 and the front of the mounting bracket 31 form a clamping surface, pressing the flexible heat-conducting sleeve 332 covering the detection probe 331 tightly between them. This clamping method not only restricts the displacement of the flexible heat-conducting sleeve 332 through rigid contact surfaces, but also increases the fixing area through surface contact. This allows the flexible heat-conducting sleeve 332 to maintain a tight fit with the conductive element 32 even under long-term thermal deformation or mechanical vibration, thus ensuring that the temperature sensor 33 continuously and stably senses the temperature changes of the conductive element 32 through the flexible heat-conducting sleeve 332. This clamping structure abandons the traditional fixing method that relies solely on elastic elements or adhesives, and effectively solves the contact failure problem caused by creep of flexible materials through the rigid constraint of mechanical clamping. The back side of the conductive element 32 refers to the surface of the conductive element 32 facing the mounting bracket 31, and the front side of the mounting bracket 31 refers to the surface of the mounting bracket 31 facing the conductive element 32. Both can be flat surfaces or surfaces with concave and convex structures, thus cooperating to clamp and fix the flexible heat-conducting sleeve 332. The clamping of the flexible heat-conducting sleeve 332 refers to the process of pressing and fixing the flexible heat-conducting sleeve 332 with the relative pressure between the conductive element 32 and the mounting bracket 31. This can be achieved using a rigid contact surface or a partial pressing structure, and is used to limit the displacement of the flexible heat-conducting sleeve 332 when heated or vibrating. Compared with existing technologies, in this application, the temperature sensor 33 and the conductive element 32 are only fixed by elastic elements or adhesive, which is prone to poor contact due to material aging or vibration after long-term use. This solution uses a clamping structure between the conductive element 32 and the mounting bracket 31, directly fixing the flexible heat-conducting sleeve 332 through the mechanical constraint of the rigid contact surface. This eliminates the risk of pressure attenuation of the elastic element or adhesive failure, making the thermal contact between the temperature sensor 33 and the conductive element 32 more stable and reliable.

[0039] To reliably fix the conductive element 32, a snap-fit ​​tab 321 can be provided on the conductive element 32, and a snap-fit ​​hole 312 can be provided on the mounting bracket 31. The snap-fit ​​tab 321 passes through the snap-fit ​​hole 312 and bends to fix the conductive element 32, solving the problem of poor contact of the temperature sensor 33 due to unreliable fixation between the conductive element 32 and the mounting bracket 31. The mechanical fixation of the conductive element 32 is achieved through the mating structure of the snap-fit ​​tab 321 and the snap-fit ​​hole 312. Specifically, the snap-fit ​​tab 321, as an extension structure of the conductive element 32, can be bent and deformed after passing through the preset snap-fit ​​hole 312 of the mounting bracket 31, forming a physical limit. This bent snap-fit ​​tab 321 and the snap-fit ​​hole 312 form an interlocking structure, effectively preventing the conductive element 32 from shifting or loosening during long-term use. Compared with traditional screw fixing or adhesive methods, this structure not only simplifies the assembly process, but also achieves a reliable fixing effect through the elastic deformation characteristics of the metal material itself, ensuring that the conductive element 32 is always in close contact with the flexible heat-conducting sleeve 332, maintaining the detection accuracy of the temperature sensor 33. The snap-fit ​​tab 321 refers to the sheet-like structure formed by the edge extension of the conductive element 32. It can be achieved using a stamping process. This structure forms a mechanical limit through bending deformation, preventing relative displacement between the conductive element 32 and the mounting bracket 31. The snap hole 312 refers to a through hole opened on the surface of the mounting bracket 31. It can generally be formed using an injection mold, and its width can be 1.05 to 1.25 times the width of the snap-fit ​​tab 321. This structure provides an insertion channel for the snap-fit ​​tab 321, forming an interlocking relationship with the bent snap-fit ​​tab 321. Bending refers to the plastic deformation of the end of the snap-fit ​​tab 321, specifically using a bending tool to achieve an angle deformation of 90 to 180 degrees. This operation forms a hook-shaped or folded plate-shaped structure at the end of the snap-fit ​​tab 321, creating contact pressure with the back of the mounting bracket 31. By applying external force, the end of the snap-fit ​​tab 321 undergoes permanent bending deformation, forming a contact surface with the back of the mounting bracket 31. The bent snap fastener 321 generates elastic stress due to the material's springback properties, which is converted into a clamping force between the conductive element 32 and the mounting bracket 31. In this state, the snap fastener 321 and the edge of the snap hole 312 form a three-point contact constraint, restricting the conductive element 32's freedom of movement in the plane. Compared to existing technologies, traditional fixing methods using screw fastening or adhesive bonding suffer from complex assembly processes and are prone to loosening over long-term use. This solution utilizes the plastic deformation of the metal component itself to form a mechanical interlock, eliminating the need for additional fasteners or adhesives. While simplifying the assembly process, it maintains a durable clamping force using the elastic modulus of the metal material. Through this technical solution, this application can effectively prevent gaps between the conductive element 32 and the mounting bracket 31 caused by vibration or thermal expansion and contraction, ensuring that the flexible heat-conducting sleeve 332 of the temperature sensor 33 is always in a predetermined clamped state. The contact pressure between the conductive element 32 and the detection probe 331 remains stable, avoiding temperature detection signal attenuation due to poor contact and improving the long-term reliability of the temperature sensing system.

[0040] In addition to using the back of the conductive element 32 to clamp the flexible heat-conducting sleeve 332 against the front of the mounting bracket 31 to fix the detection probe 331, in another embodiment, the detection probe 331 can be fixed by bending the snap fastener 321 and pressing both ends of the flexible heat-conducting sleeve 332 against the back of the mounting bracket 31. This solves the problem of decreased temperature sensitivity and insufficient accuracy caused by unreliable contact between the temperature sensor 33 and the temperature sensing element. The mechanical locking structure formed by bending the snap fastener 321 forcibly presses both ends of the flexible heat-conducting sleeve 332 against the back of the mounting bracket 31. This bending action not only fixes the conductive element 32, but more importantly, the continuous pressure generated by physical deformation creates a gapless contact surface between the flexible heat-conducting sleeve 332 and the mounting bracket 31. After the flexible heat-conducting sleeve 332 is pressed, the detection probe 331 encased inside cannot undergo axial displacement or radial deflection, thus ensuring that the heat conduction path between the detection probe 331 and the conductive element 32 is always in an optimal state. The bending angle and clamping force of the snap-fit ​​tab 321 are specifically designed to avoid the degradation of thermal conductivity caused by excessive compression of the flexible material and to eliminate the problem of increased thermal resistance caused by assembly gaps. Ultimately, this allows the detection signal from the temperature sensor 33 to accurately reflect the temperature changes of the conductive component 32 in real time. Specifically, after the snap-fit ​​tab 321 passes through the snap-fit ​​hole 312 of the mounting bracket 31, it is bent to form a hook-shaped structure. This structure applies vertical pressure to both ends of the flexible heat-conducting sleeve 332. The flexible heat-conducting sleeve 332 deforms under pressure, forming a gapless fit with the back of the mounting bracket 31, while the detection probe 331 is encased inside the flexible material and cannot move. The bent snap-fit ​​tab 321 forms a self-locking structure, maintaining the clamped state without additional fasteners, ensuring a stable heat conduction path between the conductive component 32 and the flexible heat-conducting sleeve 332. Compared with existing technologies, in traditional solutions, the temperature sensor 33 and the sensing element are only fixed by elastic elements or screws, which are prone to loosening after long-term use. This solution utilizes the mechanical locking force generated by the bending of the snap fastener 321 to directly apply to the flexible heat-conducting sleeve 332, forming a fixation method without elastic decay. In existing technologies, the contact between the detection probe 331 and the conductive component 32 relies on assembly precision, while this solution automatically compensates for assembly tolerances by pressing the flexible material, avoiding poor contact caused by thermal expansion and contraction of the material.

[0041] Through the above technical solution, this application solves the problem of temperature signal drift caused by insufficient contact pressure between the temperature sensor 33 and the conductive component 32. After the flexible heat-conducting sleeve 332 is continuously compressed, the thermal resistance between its internal detection probe 331 and the external conductive component 32 is significantly reduced, and the heat transfer efficiency is improved. The self-locking structure formed by the bending of the snap-fit ​​tab 321 avoids the risk of loosening that may occur with traditional screw fixing, while simplifying the assembly process and allowing the installation and fixing of the detection component 300 to be completed without additional tools.

[0042] To ensure the detection probe 331 is stably positioned between the two sockets, one end of the flexible heat-conducting sleeve 332 can be passed from the back of the mounting bracket 31 through one socket 311 to the front of the mounting bracket 31, and then back through the other socket 311 to the back of the mounting bracket 31. The flexible heat-conducting sleeve 332 is forced to wrap around the two sockets 311, forming a zigzag path, thus constraining the detection probe 331 to the middle area of ​​the line connecting the two sockets 311. When the conductive member 32 presses the flexible heat-conducting sleeve 332 against the front of the mounting bracket 31, the elastic deformation of the flexible heat-conducting sleeve 332 generates a continuous reaction force, compensating for the small gaps in the contact surfaces. In this embodiment, one end of the flexible heat-conducting sleeve 332 generally refers to the free end, i.e. Figure 3 The top of the medium temperature sensor 33.

[0043] Besides the aforementioned insertion method, both ends of the flexible thermally conductive sleeve can be inserted into a socket 311 from the front of the mounting bracket, positioning the detection probe between the two sockets. One end of the flexible thermally conductive sleeve 332 is a free end, while the other end leads out a wire connecting to the detection probe 331. Therefore, during installation, the free end is typically inserted into one socket 311, and the wire is passed through the other socket 311 to guide the other end of the flexible thermally conductive sleeve 332 into another socket 311, ensuring both ends of the flexible thermally conductive sleeve 332 pass through a socket 311. This allows the detection probe 331 to be reliably fixed between the two sockets 311. This insertion method allows for better control of the detection probe's position before installation, reduces assembly resistance, and improves assembly efficiency.

[0044] Specifically, regarding the structure of the mounting bracket 31, to facilitate the positioning of the detection probe 331, a receiving groove 313 can be provided on the front side of the mounting bracket 31. Two insertion holes 311 are located within the receiving groove 313, and the conductive member 32 presses the detection probe 331 into the receiving groove 313 for positioning. This further solves the problem of poor contact between the temperature sensor 33 and the conductive member 32 caused by the unstable positioning of the detection probe 331 on the mounting bracket 31. By providing a receiving groove 313 on the front side of the mounting bracket 31, a fixed space is provided for the detection probe 331 and the flexible heat-conducting sleeve 332, ensuring that the contact area between the probe and the conductive member 32 is precisely defined. The design of the two insertion holes 311 located within the receiving groove 313 allows the flexible heat-conducting sleeve 332 to form a specific orientation within the receiving groove 313, avoiding displacement caused by external interference. The action of the conductive member 32 pressing the detection probe 331 into the receiving groove 313 achieves dual positioning through physical constraints: both the sidewall of the receiving groove 313 restricts the lateral displacement of the probe, and the downward pressure of the conductive member 32 eliminates longitudinal gaps. The depth of the receiving groove 313 matches the probe size, forming a three-dimensional positioning reference. This ensures a gapless thermal interface between the flexible heat-conducting sleeve 332 and the conductive element 32, thereby improving the stability of temperature conduction and detection accuracy. The receiving groove 313 refers to a recessed structure on the front of the mounting bracket 31, which can be formed by molding or machining. It provides a fixed mounting space for the detection probe 331. The depth and contour of the receiving groove 313 match the shape of the detection probe 331 to prevent lateral displacement of the flexible heat-conducting sleeve 332 under pressure. The insertion holes 311 located within the receiving groove 313 refer to two through holes distributed on the bottom surface of the receiving groove 313. A symmetrical layout can be used to create a zigzag path for the flexible heat-conducting sleeve 332 on the mounting bracket 31. Press-fitting and positioning within the receiving groove 313 refers to fixing the detection probe 331 in the receiving groove 313 using the assembly pressure of the conductive element 32. This can be achieved by utilizing the rigidity of the metal material to generate a continuous clamping force during assembly. Specifically, after the detection probe 331 is wrapped by the flexible heat-conducting sleeve 332, its main body is confined within the contour range of the receiving groove 313. The two ends of the flexible heat-conducting sleeve 332 pass through two insertion holes 311 respectively, forming a fold-back structure. This fold-back path is restricted by the sidewalls of the receiving groove 313, preventing lateral displacement of the flexible material. During installation, the conductive member 32 applies downward pressure, causing the detection probe 331 to fit against the bottom surface of the receiving groove 313, while the sidewalls of the receiving groove 313 prevent horizontal movement of the detection probe 331. The depth of the receiving groove 313 is set slightly less than the thickness of the assembly of the detection probe 331 and the flexible heat-conducting sleeve 332. After press-fitting, the flexible heat-conducting sleeve 332 undergoes a slight deformation, forming a stable pre-tightened contact state. Compared with existing technologies, in conventional solutions, the temperature sensor 33 only maintains contact with the conductive member 32 through spring pressure, which is prone to a decrease in contact pressure due to material fatigue after long-term use.This solution employs a dual fixing mechanism formed by the physical limiting of the receiving groove 313 and the rigid pressing of the conductive element 32. Even if the flexible material undergoes creep, the receiving groove 313 structure can still maintain the original position of the probe, ensuring that no gaps are generated at the thermal interface. Through the above technical solution, this application achieves precise positioning of the detection probe 331 in three-dimensional space, eliminating poor contact caused by assembly errors or material deformation. The contact pressure between the conductive element 32 and the flexible thermal conductive sleeve 332 remains constant, enhancing the stability of the heat conduction path and effectively suppressing the fluctuation amplitude of the temperature detection signal. The sidewall blocking effect of the receiving groove 313 prevents the probe from shifting during working vibrations, ensuring the reliability of detection accuracy during long-term use.

[0045] To improve assembly efficiency and facilitate the insertion of the flexible thermally conductive sleeve 332 through the insertion hole 311, a guide surface 314 can be provided between the edge of the insertion hole 311 and the bottom surface of the receiving groove 313 to facilitate the insertion of the flexible thermally conductive sleeve 332 into the insertion hole 311. This solves the problem of positioning difficulties caused by frictional resistance when the flexible thermally conductive sleeve 332 is inserted back into the insertion hole 311 of the mounting bracket 31, thereby ensuring stable contact between the detection probe 331 and the conductive element 32. By providing a guide surface 314 between the edge of the insertion hole 311 and the bottom surface of the receiving groove 313, this structure can guide the flexible thermally conductive sleeve 332 to form a smooth transition path when passing through the insertion hole 311. The inclined or arc-shaped design of the guide surface 314 can reduce the frictional resistance between the flexible thermally conductive sleeve 332 and the edge of the insertion hole 311, avoiding deformation or jamming of the flexible material during the insertion process, thereby ensuring the accurate positioning of the detection probe 331 within the receiving groove 313. This guiding structure allows the flexible heat-conducting sleeve 332 to smoothly complete two perforation actions, ensuring that the detection probe 331 is stably pressed between the conductive element 32 and the mounting bracket 31, thereby achieving long-term reliable heat conduction between the temperature sensor 33 and the conductive element 32. The guide surface 314 refers to the transition structure located between the edge of the insertion hole 311 and the bottom surface of the receiving groove 313. Specifically, it can be implemented using a bevel or an arc-shaped surface. This structure reduces the frictional resistance of the flexible heat-conducting sleeve 332 when passing through the insertion hole 311. Through the guiding effect of the guide surface 314, the flexible heat-conducting sleeve 332 can form a smooth path during its return process, avoiding positioning deviations caused by material deformation or jamming. Specifically, after the flexible heat-conducting sleeve 332 passes through the first insertion hole 311 from the back of the mounting bracket 31, it naturally transitions to the receiving groove 313 area under the guidance of the guide surface 314, and then passes through the second insertion hole 311 back to the back. The inclined or arc-shaped design of the guide surface 314 ensures that the flexible heat-conducting sleeve 332 does not experience hard friction with the edge of the insertion hole 311 during the two insertion processes, thereby ensuring that the detection probe 331 is always positioned at the predetermined position between the two insertion holes 311. When the conductive member 32 presses against the flexible heat-conducting sleeve 332, the guide surface 314 further restricts the lateral displacement of the flexible heat-conducting sleeve 332, preventing it from shifting under force. By setting the guide surface 314, this application optimizes the insertion path of the flexible heat-conducting sleeve 332, making the installation process smoother and avoiding positioning difficulties caused by frictional resistance. Through the above technical solution, this application achieves accurate positioning of the flexible heat-conducting sleeve 332 in the insertion hole 311, ensuring close contact between the detection probe 331 and the conductive member 32, thereby improving the detection accuracy and long-term reliability of the temperature sensor 33.

[0046] To better install the positioning conductive element 32, a positioning groove 315 can be provided on the front of the mounting bracket 31. The conductive element 32 is installed in the positioning groove 315, which surrounds the receiving groove 313. This solves the problem of unreliable temperature measurement caused by unstable contact between the conductive element 32 and the detection probe 331. By setting the positioning groove 315 around the receiving groove 313, the conductive element 32 is embedded in it. The edge of the conductive element 32 forms an annular rib 322, which is inserted into the positioning groove 315. This precisely restricts the position of the conductive element 32, ensuring uniform and stable contact pressure between it and the flexible heat-conducting sleeve 332 on the outside of the detection probe 331. It also strengthens the structural strength of the conductive element 32. The structural design of the positioning groove 315 not only provides an installation reference for the conductive element 32, but also, through its layout surrounding the receiving groove 313, ensures that the conductive element 32 completely covers and presses the detection probe 331 located in the receiving groove 313 after installation, preventing displacement or loosening due to long-term use or external vibration. The cooperation between the conductive element 32 and the positioning groove 315 further enhances the rigidity of the overall structure, preventing poor contact caused by thermal expansion or mechanical deformation, and ultimately achieving long-term reliability and accuracy of temperature detection. The positioning groove 315 refers to a recessed structure on the front of the mounting bracket 31, which can be formed by stamping or injection molding, and is used to restrict the installation position and orientation of the conductive element 32. This structure constrains the degree of freedom of the conductive element 32 through its geometric shape, maintaining a preset relative positional relationship with the detection probe 331. The layout of the positioning groove 315 surrounding the receiving groove 313 allows the conductive element 32 to form a ring-shaped wrap around the detection probe 331 after installation. When the conductive element 32 is embedded in the positioning groove 315, its inner edge forms a contact surface with the outer peripheral wall of the receiving groove 313, thereby uniformly pressing the flexible heat-conducting sleeve 332 on the outside of the detection probe 331. Due to the circumferential constraint of the positioning groove 315, the conductive element 32 cannot generate radial displacement when subjected to external vibration or thermal deformation, thus avoiding the problem of uneven contact pressure distribution. This application, through the cooperation of the positioning groove 315 and the receiving groove 313, restricts the displacement of the conductive element 32 to a single axial direction, while utilizing a surrounding structure to achieve uniform pressure at multiple points, fundamentally eliminating the causes of unstable contact. Through the above technical solution, this application can ensure that the contact pressure between the conductive element 32 and the detection probe 331 remains stable during long-term use, avoiding poor contact caused by mechanical vibration or material deformation. The precise installation of the conductive element 32 within the positioning groove 315 prevents lateral displacement, thereby maintaining uniform clamping force on the flexible heat-conducting sleeve 332, ultimately improving the reliability and consistency of temperature detection.

[0047] Since the conductive element 32 is a thin sheet structure, its resistance to deformation in the direction perpendicular to the front is relatively weak. Therefore, an annular rib 316 can be formed between the positioning groove 315 and the receiving groove 313. The annular rib 316 protrudes relative to the bottom surface of the receiving groove 313, and the two insertion holes 311 are located on opposite sides of the annular rib 316. This further solves the problem of poor contact between the temperature sensor 33 and the conductive element 32 caused by the unstable installation structure, thereby improving the stability and accuracy of temperature detection. Through the annular rib 316 structure formed between the positioning groove 315 and the receiving groove 313, the flexible heat-conducting sleeve 332 is limited by the annular rib 316 when passing through the insertion hole 311, preventing it from shifting or loosening during use. The design of the annular rib 316 protruding relative to the bottom surface of the receiving groove 313 can create local compression on the flexible heat-conducting sleeve 332, enhancing the tightness of its fit with the detection probe 331. The arrangement of the two insertion holes 311 on opposite sides of the annular rib 316 ensures the symmetry of the wiring path of the flexible heat-conducting sleeve 332. Furthermore, the raised feature of the annular rib 316 provides lateral constraint on the flexible heat-conducting sleeve 332, preventing displacement due to vibration or deformation during long-term operation of the temperature sensor 33. This ensures a continuous and stable heat conduction path between the conductive component 32 and the detection probe 331. The annular rib 316 also provides support and restraint to the edge of the conductive component 32, preventing excessive pressure on the detection probe 331 during assembly and potential damage. The annular rib 316 refers to the annular protrusion structure formed around the edge of the receiving groove 313. It can be integrally molded onto the surface of the mounting bracket 31 using injection molding. The annular rib 316 restricts lateral displacement of the flexible heat-conducting sleeve 332 and provides support for the conductive component 32 during assembly. The placement of the insertion holes 311 ensures a symmetrical threading path for the flexible heat-conducting sleeve 332, preventing deformation caused by uneven stress. It also facilitates assembly by allowing workers to guide the flexible heat-conducting sleeve 332 through the insertion holes 311 using the inner wall of the annular ribs 316, improving assembly efficiency. Furthermore, it creates a symmetrical tension distribution after the flexible heat-conducting sleeve 332 passes through the insertion holes 311, reducing displacement caused by vibration or thermal expansion and contraction. This application uses the annular ribs 316 to locally compress and limit the flexible heat-conducting sleeve 332, while the symmetrically distributed insertion holes 311 balance the force, preventing gaps between the detection probe 331 and the conductive element 32. Through these technical solutions, this application ensures that the contact surface between the flexible heat-conducting sleeve 332 and the detection probe 331 remains in a tight fit, eliminating interruptions in the heat conduction path caused by loose installation. The conductive element 32 maintains stable pressure under the support of the annular ribs 316, preventing damage to the detection probe 331 due to overpressure. The symmetrical layout of the sockets 311 further reduces the risk of deformation of the flexible heat-conducting sleeve 332 under temperature changes or mechanical vibration, thereby improving the stability and accuracy of temperature detection.

[0048] Regarding the specific structure of the mounting bracket 31, in one embodiment, the mounting bracket 31 includes a front bracket 301 and a rear bracket 302. The front bracket 301 is movably connected to the rear bracket 302 and slides back and forth relative to the rear bracket 302. The rear bracket 302 is fixed to the base 200. An elastic element 34 is provided between the front bracket 301 and the rear bracket 302 to keep the conductive element 32 abutting against the side wall of the kettle body 100. The sliding connection between the front bracket 301 and the rear bracket 302 means that the two achieve relative displacement through the cooperation of the guide rail and the sliding groove. Specifically, a dovetail groove structure or a T-shaped guide groove can be used to achieve this, so that the front bracket 301 can move in the radial direction of the kettle body 100. The elastic element 34 is a mechanical element that can produce elastic deformation. Specifically, a helical spring or a wave spring can be used to apply a force to the front bracket 301 toward the side wall of the kettle body 100. Alternatively, in another embodiment, to enhance the protection and fixation of the circuit board, the mounting bracket 31 can be designed to include a front bracket 301, a middle bracket 303, and a rear bracket 302. The detection component 300 includes a circuit board 35. The front bracket 301 is fixed to the middle bracket 303 and clamps and fixes the circuit board 35. The middle bracket 303 is movably connected to the rear bracket 302. An elastic element 34 is provided between the middle bracket 303 and the rear bracket 302 to keep the conductive element 32 abutting against the outer wall of the kettle body 100. The middle bracket 303 refers to the transition structure located between the front bracket 301 and the rear bracket 302. Specifically, it can be implemented using an injection-molded plastic part, which has a slot inside for fixing the circuit board 35. Specifically, when the kettle body 100 is placed on the base 200, the front bracket 301 is squeezed backward by the outer wall of the kettle body 100, at which time the elastic element 34 is compressed and generates a reverse force. The force pushes the conductive element 32 on the front bracket 301 to continuously abut against the outer wall of the kettle body 100. Even if the kettle body 100 experiences slight displacement due to thermal expansion and contraction, the deformation of the elastic element 34 can still compensate for the contact gap. In the embodiment including the middle bracket 303, the front bracket 301 and the middle bracket 303 are fixed by screws or clips, and the circuit board 35 is clamped between them to ensure a stable connection of the signal line of the temperature sensor 33. An elastic element 34 is also provided between the middle bracket 303 and the rear bracket 302, so that the entire detection assembly 300 can adaptively adjust with the position change of the kettle body 100. As part of the assembly process, the mounting bracket 31 and the detection assembly 300 can be assembled into a module first, and then assembled onto the base 200, which helps to improve assembly efficiency and reduce the failure rate. This solution uses a split bracket structure combined with bidirectional elastic compensation to create a dynamic pressure balance between the detection probe 331 and the kettle body 100. In the embodiment including the middle bracket 303, the independent fixing structure of the circuit board 35 avoids interference with the electrical connection when the detection assembly 300 moves. Through the above technical solution, this application can ensure that the heat conduction path between the temperature sensor 33 and the conductive element 32 is always in a tight fit, eliminating poor contact caused by assembly gaps or material deformation.The continuous pressure compensation mechanism of the elastic element 34 effectively solves the problem of pressure attenuation between the detection component 300 and the kettle body 100 after long-term use, thereby maintaining the sensitivity and accuracy of temperature detection.

[0049] Besides the aforementioned models, the kettle body 100 can also be made of non-glass material. For example, the kettle body 100 includes a glass body and a heating base. The heating base has an upper connector, and the base 200 has a lower connector. The kettle body 100 is placed on the base 200 so that the upper connector and the lower connector are electrically coupled. The conductive element 32 remains in contact with the outer wall of the glass body. The glass body and the heating base are sealed together. The upper connector refers to the conductive interface located at the bottom of the heating base, which can be implemented using a copper spring pin array. It is used to connect with the lower connector of the base 200 to form an electrical connection. The lower connector refers to the corresponding conductive interface inside the base 200, which can be implemented using a copper spring plate array. It forms a stable electrical coupling with the upper connector through the insertion action. The glass body and the heating base are fixed by the connector insertion. After insertion, the relative position of the kettle body and the base 200 is rigidly constrained. The pressure of the conductive element 32 against the outer wall of the glass body is maintained by the insertion force of the connector. Even if the kettle body 100 is thermally expanded or mechanically vibrates, the contact pressure remains stable.

[0050] Through the above technical solution, this application solves the problem of temperature measurement error caused by unreliable contact between the conductive component 32 and the outer wall of the kettle body 100. Both kettle body 100 structures ensure continuous and tight contact between the conductive component 32 and the glass wall through mechanical constraints, the heat transfer path is stable, and the temperature detection signal is not affected by assembly gaps or component aging.

[0051] The kettle body 100 is generally a rotating structure, with its outer surface typically cylindrical. To improve fit, the front of the conductive component 32 is also designed to match the curved surface of the kettle body 100's outer surface, reducing the gap between them and ensuring a stable and reliable heat transfer path. Conversely, a contact plane can be provided on the outer surface of the kettle body, and the front of the conductive component 32 can be designed as a flat surface to ensure a good fit. However, this requires the user to align the contact plane with the front of the conductive component 32 when placing the kettle, which can be achieved by designing a foolproof structure.

[0052] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A liquid heater, comprising a vessel body and a base, wherein the base is provided with a detection component for detecting temperature, characterized in that, The detection assembly includes a mounting bracket, a conductive element, and a temperature sensor. The temperature sensor has a detection probe and a flexible heat-conducting sleeve covering the outside of the detection probe. The mounting bracket has at least two insertion holes. After the flexible heat-conducting sleeve passes through the insertion holes, the detection probe is located between the two insertion holes. The conductive element is fixed to the front of the mounting bracket and presses down on the flexible heat-conducting sleeve for fixation, so that the conductive element is in close contact with the flexible heat-conducting sleeve on the outside of the detection probe.

2. The liquid heater according to claim 1, characterized in that, The back of the conductive element is clamped to the front of the mounting bracket with a flexible heat-conducting sleeve to fix the detection probe.

3. The liquid heater according to claim 1, characterized in that, The conductive component is provided with a snap fastener, and the mounting bracket is provided with a snap hole. The snap fastener passes through the snap hole and is bent to fix the conductive component.

4. The liquid heater according to claim 3, characterized in that, After the buckle is bent, the two ends of the flexible heat-conducting sleeve are pressed tightly against the back of the mounting bracket to fix the detection probe.

5. The liquid heater according to claim 1, characterized in that, One end of the flexible heat-conducting sleeve passes through a hole from the back of the mounting bracket to the front of the mounting bracket and then through another hole back to the back of the mounting bracket, so that the detection probe is located between the two holes; or, both ends of the flexible heat-conducting sleeve are inserted into a hole from the front of the mounting bracket, so that the detection probe is located between the two holes.

6. The liquid heater according to any one of claims 1 to 4, characterized in that, The mounting bracket has a receiving groove on its front side, and two insertion holes are located in the receiving groove. The conductive component presses the detection probe into the receiving groove for positioning.

7. The liquid heater according to claim 5, characterized in that, The mounting bracket has a positioning groove on its front side, which surrounds the receiving groove. The edge of the conductive element has an annular rib, which is installed in the positioning groove. Alternatively, a guide surface is provided between the edge of the insertion hole and the bottom surface of the receiving groove to facilitate the insertion of the flexible heat-conducting sleeve into the insertion hole.

8. The liquid heater according to claim 7, characterized in that, An annular rib is formed between the positioning groove and the receiving groove. The annular rib protrudes from the bottom surface of the receiving groove, and the two insertion holes are located on opposite sides of the annular rib.

9. The liquid heater according to claim 1, characterized in that, The mounting bracket includes a front bracket and a rear bracket. The front bracket is movably connected to the rear bracket and slides back and forth relative to the rear bracket. The rear bracket is fixed to the base. An elastic element is provided between the front bracket and the rear bracket to keep the conductive element abutting against the outer wall of the kettle body. Alternatively, the mounting bracket includes a front bracket, a middle bracket, and a rear bracket. The detection component includes a circuit board. The front bracket is fixed to the middle bracket and clamps and fixes the circuit board. The middle bracket is movably connected to the rear bracket. An elastic element is provided between the middle bracket and the rear bracket to keep the conductive element abutting against the outer wall of the kettle body.

10. The liquid heater according to claim 1, characterized in that, The kettle body is an all-glass kettle body, the base is equipped with a heating plate, the kettle body is placed on the heating plate, and the conductive element remains in contact with the outer wall of the kettle body; or, the kettle body includes a glass kettle body and a heating base, the heating base is equipped with an upper connector, the base is equipped with a lower connector, the kettle body is placed on the base so that the upper connector and the lower connector are plugged in and electrically coupled, and the conductive element remains in contact with the outer wall of the glass kettle body.

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