A glass kettle water level probe structure
By creating a stepped structure at the bottom of the glass pot and combining it with a metal probe and an insulating component, the problem of no water conduction caused by silicone immersion in the glass pot's water level probe is solved, achieving accurate water level detection and convenient cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HAILEA GRP CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-26
AI Technical Summary
The existing water level probes for glass kettles use silicone-insulated probes connected to the heating plate. When these probes are submerged in water for extended periods, they lose their conductivity, affecting the accuracy of water level detection.
A stepped structure is formed at the bottom of the glass pot, and the water level probe is directly installed on the stepped structure to avoid direct contact with the heating plate. A combination structure of metal probe, metal connecting post, insulating parts and fixing parts is used to isolate the use of silicone.
It achieves accurate and convenient water level detection, avoids false detections caused by long-term immersion of silicone, and is easy to clean.
Smart Images

Figure CN224403386U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of teaware technology, and more specifically, to a water level probe structure for a glass teapot. Background Technology
[0002] Currently, electric kettles on the market generally consist of a base and a kettle body. The base is equipped with a controller. When using the kettle, you only need to place the kettle body on the base to connect the controller between the base and the kettle body. In electric kettles that automatically add water, a water level probe is installed inside the kettle to detect the water level.
[0003] For example, Chinese Patent Publication No. CN208851203U discloses a liquid heater whose body is compatible with both stainless steel and glass bodies. A high-water-level probe is installed on the body, and the probe is fixed to the body through a probe mounting hole. However, the specific structure of the probe mounting hole is not disclosed. Another Chinese Patent Publication No. CN222419196U discloses a multifunctional probe and heating plate. This multifunctional probe includes a water-level probe, which comprises a high-water-level conductive needle segment, a medium-water-level conductive needle segment, and a low-water-level conductive needle segment arranged axially along the height direction. Insulating isolation needle segments are provided between the high-water-level and medium-water-level conductive needle segments, and between the medium-water-level and low-water-level conductive needle segments. A first water-level lead wire is connected to each of the high-water-level, medium-water-level, and low-water-level conductive needle segments. The heating plate body 10 has an assembly through hole 1001. The lower part of the low water level conductive needle segment 4 is inserted into the assembly through hole 1001, and an insulating spacer assembly is provided in the assembly through hole 1001 between the heating plate body 10 and the low water level conductive needle segment 4. The insulating spacer assembly provides insulation between the low water level conductive needle segment 4 and the heating plate body 10. The insulating spacer assembly includes a waterproof rubber ring 15 and a bakelite gasket 16. The waterproof rubber ring 15 is fitted onto the lower part of the low water level conductive needle segment 4 and placed in the assembly through hole 1001. Its top extends along the surface of the heating plate body 10 with a waterproof flange 151. The middle part of the low water level conductive needle segment 4 extends to a limiting ring 41 that presses against the waterproof flange 151. The bakelite gasket 16 is placed below the heating plate body 10 and fitted onto the bottom of the waterproof rubber ring 15.
[0004] Currently, most water level probes for glass kettles on the market are mounted on a stainless steel base inside the kettle, and, as mentioned above, use silicone to isolate the probe from the kettle base. However, when silicone is soaked in water for a long time, it produces a sticky, conductive substance, causing the water level probe to connect to the kettle base even when there is no water in the kettle, affecting the water level detection results. Utility Model Content
[0005] This utility model provides a water level probe structure for a glass kettle, which installs the water level probe on the bottom of the glass kettle body to isolate the direct contact between the water level probe and the heating plate, thus avoiding the situation where there is no water conduction after long-term immersion in water after using silicone partition.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A water level probe structure for a glass kettle is provided, including a base, a glass kettle body connected to the base, and a water level probe. The base includes a seat with a controller and a heating plate disposed in the seat body and located above the controller. The bottom edge of the glass kettle body is bent into the kettle body to form a stepped structure. The stepped structure is connected to the seat body and embedded in the heating plate, and the upper surface of the stepped structure is slightly higher than the upper surface of the heating plate. The water level probe is mounted on the upper surface of the stepped structure and is electrically connected to the controller.
[0008] Furthermore, the stepped structure includes a base extending from the bottom edge of the glass pot body into the pot body and an extension connected to the base. The base is connected to the seat body, and the upper surface of the base is slightly higher than the upper surface of the heating plate. The extension is embedded in the heating plate. The water level probe includes a metal probe, a metal connecting post, an insulating component, a terminal block, and a fixing component. The metal probe is fastened to the base and fixed to the metal connecting post. The metal connecting post passes through the base. The insulating component is sleeved on the metal connecting post and fixed between the metal connecting post and the base. The terminal block is sleeved on the metal connecting post and located below the insulating component. The terminal block is electrically connected to the controller. The fixing component is snapped into the lower end of the metal connecting post and abuts against the terminal block.
[0009] Furthermore, the base is provided with mounting holes; the insulating element is a silicone ring with an annular mounting groove on its outer peripheral wall, the width of which is exactly less than the thickness of the base, and the mounting groove is engaged with the mounting holes; the metal probe is a cover structure, and the metal probe is integrally formed with the metal connecting post; the metal probe is fastened to the base and exactly covers the portion of the insulating element located above the mounting holes; the lower end of the metal connecting post is provided with a limiting platform, which is located below the insulating element, and the wiring terminal is precisely sleeved between the insulating element and the limiting platform, and the fixing element is engaged with the limiting platform and abuts against the wiring terminal.
[0010] Optionally, the fastener is a retaining ring.
[0011] Preferably, the metal connecting column has a cavity, and a thermal probe is installed in the cavity. The upper end of the thermal probe is in contact with the bottom of the metal probe, and the lower end extends out of the cavity and is electrically connected to the controller.
[0012] Preferably, the edge of the heating plate extends circumferentially to form a groove, the opening of the groove faces upward, and the extension at the bottom of the glass pot body is embedded in the groove.
[0013] Compared with existing technologies, the water level probe structure of this utility model is used in teapots and other teaware with glass bodies. It directly forms a stepped structure at the bottom of the glass body, slightly higher than the upper surface of the heating plate, meaning the upper surface of this stepped structure is almost flush with the heating plate. The water level probe is then directly mounted on this stepped structure to detect the (low) water level inside the glass body. Because the water level probe is located on the bottom of the glass body, direct contact between the probe and the heating plate is prevented, thus avoiding the use of silicone sealant and the resulting lack of water conductivity due to prolonged immersion in water. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the water level probe structure of a glass pot in one embodiment of the present invention.
[0015] Figure 2 for Figure 1 Enlarged diagram of part A in the middle.
[0016] Figure 3 This is an exploded view of the water level probe in one embodiment of the present invention. Detailed Implementation
[0017] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It should be understood that terms such as "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the drawings, 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, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0018] Example 1
[0019] like Figures 1 to 3The diagram shows an embodiment of the water level probe structure for a glass teapot according to this utility model. The structure includes a base 10, a glass teapot body 20 connected to the base 10, and a water level probe 30. The base 10 includes a seat 11 and a heating plate 12. A controller 13 is housed within the seat 11, and the heating plate 12 is disposed within the seat 11 and above the controller 13. This embodiment of the water level probe structure is specifically designed for teapots and other teaware with glass bodies. Because glass is a non-conductive material, current and other signals cannot be conducted through the teapot body 20; therefore, the installation position of the water level probe 30 has been improved. Figure 1 , Figure 2 As shown, the bottom edge of the glass pot body 20 is bent inward to form a stepped structure 21. The stepped structure 21 is connected to the base 11 and embedded in the heating plate 12. The upper surface of the stepped structure 21 is slightly higher than the upper surface of the heating plate 12. The water level probe 30 is installed on the upper surface of the stepped structure 21 and electrically connected to the controller 13.
[0020] In this embodiment, the water level probe structure of the glass kettle is formed by bending the bottom of the glass kettle body 20 to create a stepped structure 21 that is slightly higher than the upper surface of the heating plate 12. That is, the upper surface of the stepped structure 21 is almost flush with the heating plate 12. The water level probe 30 is directly mounted on the stepped structure 21 to detect the (low) water level inside the glass kettle body 20. Since the stepped structure 21 is formed directly from the bottom of the glass kettle body 20, it is also made of glass. This means that the water level probe 30 is positioned on the bottom of the glass kettle body 20, thus preventing direct contact between the water level probe 30 and the heating plate 12. This allows for the detection of the water level at the bottom of the kettle body 20 while avoiding the need for a silicone separator between the water level probe 30 and the heating plate 12. This also avoids the problem of silicone being submerged in water for extended periods, leading to a lack of water flow. The water level detection is more accurate and easier to clean.
[0021] Example 2
[0022] In a preferred embodiment, such as Figure 2 As shown, the stepped structure 21 consists of a base 211 and an extension 212. The base 211 is formed by bending and extending from the bottom edge of the glass kettle body 20 inwards. The upper surface of the base 211 is slightly higher than the upper surface of the heating plate 12. The extension 212 is a component formed by further bending and connecting the base 211. The extension 212 is embedded in the heating plate 12. Both are made of the same glass material as the kettle body 20. It can be understood that in practical applications, the glass kettle body 20 and the stepped structure 21 at the bottom are integrally formed. Furthermore, as... Figure 1 , Figure 2 As shown, the edge of the heating plate 12 extends circumferentially to form a groove 121, the opening of the groove 121 faces upward, and the extension 212 of the bottom of the glass pot body 20 is embedded in the groove 121.
[0023] In this embodiment, as Figure 2 , Figure 3 As shown, the water level probe 30 includes a metal probe 31, a metal connecting post 32, an insulating component 33, a terminal block 34, and a fixing component 35. The metal probe 31 is fastened to the base 211 and fixed to the metal connecting post 32. The metal connecting post 32 passes through the base 211. The insulating component 33 is sleeved on the metal connecting post 32 and fixed between the metal connecting post 32 and the base 211. The terminal block 34 is sleeved on the metal connecting post 32 and located below the insulating component 33. The terminal block 34 is electrically connected to the controller 13. The fixing component 35 is snapped into the lower end of the metal connecting post 32 and abuts against the terminal block 34.
[0024] More specifically, the base 211 is provided with mounting holes; such as Figure 3 As shown, the insulating component 33 is a silicone ring with an annular mounting groove 331 on its outer peripheral wall. The width of the mounting groove 331 is exactly less than the thickness of the base 211, and the mounting groove 331 is engaged with the mounting hole. The metal probe 31 is a cover structure, integrally formed with the metal connecting post 32. The metal probe 31 is fastened to the base 211 and exactly covers the part of the insulating component 33 above the mounting hole. The lower end of the metal connecting post 32 has a limiting platform 321, which is located below the insulating component 33. The terminal block 34 is precisely fitted between the insulating component 33 and the limiting platform 321. The fixing component 35 is engaged with the limiting platform 321 and abuts against the terminal block 34. The fixing component 35 is a retaining ring, which has a simple structure and is easy to install and remove. That is, the metal probe 31 and the metal connecting post 32 are used as a whole as a sensor component that can detect water level. They are fixed by the insulating part 33 covered by the metal probe 31. Since the whole is installed on the base 211 of the bent structure of the glass pot body 20, the outside of the metal probe 31 does not need to be fixed to the heating plate 12 with silicone, thus avoiding the occurrence of false detection caused by the silicone being soaked in water for a long time.
[0025] In the improved embodiment, such as Figure 2 As shown, a cavity can be provided inside the metal connecting post 32, and a thermal probe 36 is installed inside the cavity. The upper end of the thermal probe 36 contacts the bottom of the metal probe 31, and the lower end extends out of the cavity and is electrically connected to the controller 13. That is, the metal probe 31 also functions as a temperature sensor, which is convenient to use.
[0026] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A glass kettle water level probe structure, comprising a base, a glass kettle body connected to the base, and a water level probe, the base comprising a seat body provided with a controller and a heating disc arranged in the seat body and located above the controller, characterized in that, The bottom edge of the glass pot body bends inward to form a stepped structure. The stepped structure is connected to the base and embedded in the heating plate. The upper surface of the stepped structure is higher than the upper surface of the heating plate. The water level probe is installed on the upper surface of the stepped structure and is electrically connected to the controller.
2. The glass kettle water level probe structure according to claim 1, characterized in that, The stepped structure includes a base extending from the bottom edge of the glass pot body into the pot body and an extension connected to the base. The base is connected to the seat body, and the upper surface of the base is higher than the upper surface of the heating plate. The extension is embedded in the heating plate. The water level probe includes a metal probe, a metal connecting post, an insulating component, a terminal block, and a fixing component. The metal probe is fastened to the base and fixed to the metal connecting post. The metal connecting post passes through the base. The insulating component is sleeved on the metal connecting post and fixed between the metal connecting post and the base. The terminal block is sleeved on the metal connecting post and located below the insulating component. The terminal block is electrically connected to the controller. The fixing component is snapped into the lower end of the metal connecting post and abuts against the terminal block.
3. The glass kettle water level probe structure according to claim 2, characterized in that, The base is provided with mounting holes; the insulating component is a silicone ring with an annular mounting groove on its outer peripheral wall, the width of the mounting groove being exactly smaller than the thickness of the base, and the mounting groove is engaged with the mounting holes; The metal probe has a cover structure and is integrally formed with the metal connecting post. The metal probe is fastened to the base and covers the part of the insulating component above the mounting hole. The lower end of the metal connecting post is provided with a limiting platform, which is located below the insulating component. The wiring terminal is fitted between the insulating component and the limiting platform. The fixing component is snapped onto the limiting platform and abuts against the wiring terminal.
4. The glass kettle water level probe structure according to claim 3, characterized in that, The fastener is a retaining ring.
5. The glass kettle water level probe structure according to claim 2, characterized in that, The metal connecting column has a cavity, and a thermal probe is installed in the cavity. The upper end of the thermal probe is in contact with the bottom of the metal probe, and the lower end extends out of the cavity and is electrically connected to the controller.
6. The glass kettle water level probe structure according to any one of claims 2 to 5, characterized in that, The edge of the heating plate extends circumferentially to form a groove, with the opening of the groove facing upwards, and the extension at the bottom of the glass pot body is embedded in the groove.