Electric kettle with scale prevention and removal functions

Abstract

The electric kettle comprises a kettle cover, a kettle body, a spout and a heating plate, the kettle cover is arranged on a kettle opening of the kettle body, the kettle body is detachably placed on the heating plate, micron-sized concave hole texture structures used for preventing the scale are evenly distributed on the wall face and the bottom face of an inner container of the kettle body, and the micron-sized concave hole texture structures are arranged on the kettle body. A cleaning module used for efficiently and actively removing water scale is arranged on the bottom face of the kettle body inner container, when the formed water scale needs to be removed, a user does not need to conduct any manual operation, and after the cleaning function is started, the water scale can be removed through the cleaning module. High-frequency mechanical vibration generated by the ultrasonic generator can induce a cavitation effect in water, and a large number of micron-sized cavitation bubbles are generated. Meanwhile, the rotation of the fan blades at the bottom drives the water flow, so that the cavitation bubbles can uniformly and quickly flow to each corner in the kettle.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, specifically relating to an electric kettle that has the function of preventing and removing limescale. Background Technology

[0002] Electric kettles, as one of the most widely used instant water heating appliances globally, are highly favored by users for their convenience. However, their inherent pain points are also quite prominent, especially in areas with high water hardness (such as northern my country and some coastal areas). Scale, mainly composed of calcium carbonate and magnesium hydroxide, precipitates out during heating due to decreased solubility and firmly adheres to the inner wall of the kettle and the surface of the heating plate. The accumulation of scale can trigger a series of serious problems: First, energy efficiency degradation and energy waste: Scale has a much lower thermal conductivity than metal materials. When it forms a coating on the inner wall of the tank, especially on the surface of the heating plate, it constitutes a significant insulating layer, severely hindering the efficient transfer of heat to the water. This directly leads to longer heating times, increased heat loss, and unnecessary energy waste, significantly increasing the user's electricity costs in the long run.

[0003] Secondly, shortened lifespan and safety hazards: Due to the insulating effect of limescale, the heat generated by the heating plate cannot be carried away by the water flow in time, causing abnormal local temperature rises in the heating plate itself, forming overheating spots. Prolonged exposure to this overheating condition will accelerate the aging, deformation, and even burn out of the metal substrate of the heating plate, significantly shortening the product's lifespan. More seriously, continuous localized overheating may cause deformation and melting of the plastic parts of the kettle body, posing safety hazards such as fire.

[0004] Third, health risks associated with drinking water: The porous structure of limescale easily becomes a breeding ground for bacteria and microorganisms. In addition, the accumulation of limescale may alter the chemical balance of water, introduce odors, and under certain conditions, release trace amounts of heavy metal ions or other harmful substances, posing a potential threat to the health of users.

[0005] Currently, common descaling methods on the market mainly rely on manual operation by users, such as soaking and cleaning with acidic solvents like citric acid and acetic acid. This method is not only cumbersome and time-consuming, but the residue of chemical reagents may also pose new safety issues. Frequent mechanical scrubbing can also easily scratch the inner wall of the kettle, creating more favorable conditions for scale to re-adhere. Therefore, developing an electric kettle that can automatically, efficiently, and non-damagingly prevent and remove scale has significant market value and is technologically necessary. Summary of the Invention

[0006] In view of the problems existing in the prior art, the purpose of this invention is to provide an electric kettle with the function of preventing and removing limescale. Through the synergistic effect of surface microtexture technology and ultrasonic cavitation effect, the technical problem of limescale accumulation on the inner liner and heating plate of the electric kettle is fundamentally solved.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows: An electric kettle with scale prevention and removal functions includes a lid, a body, a spout, and a heating plate. The lid is located on the spout of the body, and the body is detachably placed on the heating plate. The inner wall and bottom of the body are uniformly distributed with micron-level concave pore structures for preventing scale. The bottom of the inner liner is provided with a cleaning module for efficient and active scale removal.

[0008] Furthermore, the cleaning module includes a motor, a set of fan blades and a porous mesh. The fan blades are sleeved on the output shaft of the motor, the porous mesh covers the fan blades, and the porous mesh is installed on the bottom surface of the inner liner of the kettle.

[0009] Furthermore, an ultrasonic generator is installed inside the kettle lid, and an operation panel is provided on the kettle body, wherein the operation panel has a water boiling button and a cleaning button.

[0010] Furthermore, a control module is included, wherein the ultrasonic generator, motor, and heating plate are all electrically connected to the control module.

[0011] Furthermore, the micron-scale concave texture structure is a micron-scale pit array.

[0012] Furthermore, the pot body is provided with a spout and a handle.

[0013] Compared with the prior art, the effective effects of the present invention are as follows: 1) Long-term prevention mechanism: The inner wall and bottom of the kettle body of this invention are uniformly distributed with a micron-level concave texture structure. This structure is not a simple smooth or rough surface, but a designed array of micron-level pits. When water flows into contact with this textured surface, it captures air in its micropores, forming a stable, micro-scale air cushion layer. This air cushion effectively reduces the actual contact area between water and the inner wall of the kettle, physically changing the initial formation environment of scale nuclei (seeds), and greatly delaying the start of the crystallization process. Even after long-term use, a small number of scale molecules may still adhere, but they cannot form a continuous, dense, hard scale layer. Instead, they present a loose granular state, creating extremely favorable conditions for subsequent cleaning. 2) Cleaning Module: The bottom surface of the inner liner of this invention is equipped with a cleaning module for efficient and active removal of limescale. When limescale needs to be removed, the user does not need to perform any manual operation. After activating the cleaning function, the high-frequency mechanical vibration generated by the ultrasonic generator induces a "cavitation effect" in the water, producing a large number of micron-sized cavitation bubbles. At the same time, the rotation of the bottom fan blades drives the water flow, allowing these cavitation bubbles to flow evenly and quickly to every corner of the kettle. 3) System Synergy and Interaction: The ingenuity of this invention lies in the synergistic design of its components. First, the microstructure of the inner wall acts as a "bubble nucleation point" during the cleaning process, promoting the generation density and efficiency of cavitation bubbles. Second, the porous grid not only protects the fan blades, but its own structure also intensifies water turbulence. Together with ultrasonic vibration and fan blade agitation, it forms a powerful synergistic effect, enabling the generation and distribution of cavitation bubbles to reach the optimal state. The three-in-one design of "surface texture + ultrasonic waves + fluid dynamics" ensures the maximization of cleaning effect. 4) User-friendly operation: The kettle body of this invention has clearly distinguishable boiling water button and cleaning button. The user's daily boiling water and regular descaling operations are independent and do not interfere with each other. They can be completed with one button, which truly realizes convenient operation and greatly improves the user experience. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the electric kettle of the present invention; Figure 2 This is a top view of the electric kettle of the present invention; Figure 3 for Figure 2 Cross-sectional view at point AA; Figure 4 This is a detailed perspective view of the electric kettle of the present invention; Figure 5 This is a schematic diagram of the active and efficient cleaning module structure of the present invention; Figure 6 This is a schematic diagram illustrating the bubble generation and flow of the present invention; Figure 7 for Figure 4 Enlarged detail of point A in the middle.

[0015] In the diagram: 1. Kettle lid; 101. Ultrasonic generator; 2. Kettle body; 201. Micron-level concave textured structure; 202. Cleaning module; 2021. Motor; 2022. Fan blade; 2023. Porous mesh; 203. Boiling button; 204. Cleaning button; 3. Heating plate. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the scope described.

[0017] Please refer to Figure 1 , Figure 2 and Figure 3 An electric kettle with scale prevention and removal functions includes a lid 1, a body 2, a spout, and a heating plate 3. The lid 1 is set on the spout of the body 2. The body 2 is detachably placed on the heating plate 3. The inner wall and bottom of the body 2 are evenly distributed with micron-level concave pore texture structure 201 for preventing scale. The bottom of the inner wall of the body 2 is provided with a cleaning module 202 for efficient and active scale removal.

[0018] Please refer to Figure 4-5 An ultrasonic generator 101 is installed inside the lid 1 to generate high-frequency mechanical vibration. The cleaning module 202 includes a motor 2021, a set of fan blades 2022 and a porous mesh 2023. The fan blades 2022 are sleeved on the output shaft of the motor 2021, and the porous mesh 2023 covers the fan blades 2022. The porous mesh 2023 is installed on the bottom surface of the inner liner of the kettle body 2.

[0019] The function of the porous grid 2023 is to promote bubble generation. The small holes of the porous grid 2023 diffuse towards the wall surface, while the large holes diffuse towards the bottom surface.

[0020] In this embodiment, the kettle body 2 is equipped with an operation panel, which includes a boiling water button 203 and a cleaning button 204. Daily boiling water and periodic descaling operations are independent and do not interfere with each other; both can be completed with a single button, truly achieving convenient operation and greatly enhancing the user experience.

[0021] This embodiment also includes a control module, and the ultrasonic generator 101, motor 2021 and heating plate 3 are all electrically connected to the control module.

[0022] When it's time to remove existing limescale, users don't need to perform any manual operations. After activating the cleaning function, the high-frequency mechanical vibration generated by the ultrasonic generator induces a "cavitation effect" in the water, producing a large number of micron-sized cavitation bubbles. At the same time, the rotation of the bottom fan blades drives the water flow, allowing these cavitation bubbles to flow evenly and quickly to every corner of the kettle.

[0023] Micron-level concave texture structure 201 Micropore structure magnification as shown Figure 7 Compared to ordinary kettles, this structure makes it less likely for running water to form limescale, with the semi-circular concave holes being the most effective. The air acts like a cushion, reducing the contact area between water and the wall, delaying the initial formation of limescale crystals, and even if limescale does form, it won't form large, continuous clumps.

[0024] The micron-scale concave texture structure 201 is an array of micron-scale pits. This structure is not a simple smooth or rough surface, but a designed array of micron-scale pits. When water flows into contact with this textured surface, it traps air in its micropores, forming a stable, microscale air cushion layer. This air cushion effectively reduces the actual contact area between water and the inner wall of the kettle, physically altering the initial formation environment of scale nuclei (seed crystals) and greatly delaying the start of the crystallization process. Even after long-term use, a small number of scale molecules may still adhere, but they cannot form a continuous, dense, hard scale layer; instead, they exist in a loose, granular state, creating extremely favorable conditions for subsequent cleaning.

[0025] In this embodiment, the pot body 2 is provided with a spout and a handle.

[0026] The method of using the electric kettle of this invention is as follows: When the cleaning function is not used and only the water boiling function is used, simply press the water boiling button 203 to boil the water; when the user wishes to use the cleaning function, simply add water and press the cleaning button 204 to perform ultrasonic descaling.

[0027] When using the cleaning function, pressing the cleaning button 204 activates the ultrasonic generator 101, which vibrates. The fan blades 2022 and porous mesh 2023 at the bottom of the kettle generate numerous cavitation bubbles. The fan blades 2022 at the bottom of the kettle promote water flow, causing the cavitation bubbles to move and generate… Figure 6 The effect is that the movement of bubbles and their impact on the micron-sized concave texture structure 201 on the inner wall and bottom surface promote the cavitation of the bubbles. After the bubbles burst, they generate shock waves that continuously act on the scale on the inner wall of the kettle, removing it.

Claims

1. An electric kettle with scale prevention and removal functions, comprising a lid (1), a body (2), a spout, and a heating plate (3), wherein the lid (1) is disposed on the spout of the body (2), and the body (2) is detachably placed on the heating plate (3), characterized in that... The inner wall and bottom of the kettle body (2) are evenly distributed with micron-level concave pore textured structure (201) for preventing scale, and the bottom of the inner wall of the kettle body (2) is provided with a cleaning module (202) for efficient and active removal of scale.

2. An electric kettle with scale prevention and removal functions according to claim 1, characterized in that... The cleaning module (202) includes a motor (2021), a set of fan blades (2022) and a porous mesh (2023). The fan blades (2022) are sleeved on the output shaft of the motor (2021), and the porous mesh (2023) covers the fan blades (2022). The porous mesh (2023) is installed on the bottom surface of the inner liner of the kettle body (2).

3. An electric kettle with scale prevention and removal functions according to claim 2, characterized in that... An ultrasonic generator (101) is installed inside the lid (1), and an operation panel is provided on the body (2), wherein the operation panel is provided with a boiling button (203) and a cleaning button (204).

4. An electric kettle with scale prevention and removal functions according to claim 3, characterized in that... The ultrasonic generator (101), motor (2021) and heating plate (3) are all electrically connected to the control module, including the control module.

5. An electric kettle with scale prevention and removal functions according to claim 1 or 3, characterized in that... The micron-level concave texture structure (201) is a micron-level concave array.

6. An electric kettle with scale prevention and removal functions according to claim 1, characterized in that... The body of the pot (2) is provided with a spout and a handle.

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