Electric kettle with replaceable inner container
By using a replaceable inner liner and a flow guiding structure, the problem of difficult cleaning of the inner liner and condensation dripping in traditional electric kettles is solved, achieving a balance between hygiene and safety in electric kettles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN JIAMU TECHNOLOGY CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-08
AI Technical Summary
Traditional electric kettles have an inner liner that is fixed to the kettle body, making them difficult to clean thoroughly. This can lead to the accumulation of limescale and bacteria, and the dripping of condensate can cause hygiene and safety hazards.
The design features a replaceable inner liner structure, which, combined with guide components and guide parts, directs condensate back into the inner liner to prevent condensate overflow. Locking components and positioning structures ensure a secure installation of the inner liner.
It enables convenient cleaning and replacement of the inner liner, avoids the accumulation of scale and bacteria, eliminates the risk of electric leakage and hygiene hazards caused by condensation dripping, and improves the hygiene and safety of electric kettles.
Smart Images
Figure CN224206610U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric kettle technology, and in particular to an electric kettle with a replaceable inner liner. Background Technology
[0002] Traditional electric kettles typically use a fixed, integrated inner liner and body, making them inseparable. In homes or hotels, this can lead to limescale and bacteria buildup inside the liner over time, posing a significant hygiene risk, especially when shared by multiple people. Furthermore, as steam rises to the inner wall of the lid and condenses, this condensation can flow erratically along the inner wall, dripping onto the outside of the kettle and fostering bacterial growth and limescale. This exacerbates hygiene concerns, particularly in high-frequency use environments like hotels. If condensation seeps into the gap between the inner liner and the heating element, it can cause short circuits or oxidation of metal contacts, potentially leading to electric shock. In conclusion, current electric kettle technology presents a challenge in balancing hygiene and safety. Utility Model Content
[0003] The purpose of this invention is to provide an electric kettle with a replaceable inner liner, thereby solving the problem of balancing hygiene and safety in existing electric kettles.
[0004] This utility model provides an electric kettle with a replaceable inner liner, comprising: a kettle body, wherein an installation cavity is formed inside the kettle body;
[0005] An inner liner, which is detachably disposed in the mounting cavity;
[0006] A lid, which is hinged to the body of the pot to cover the opening of the inner liner;
[0007] A flow guide is disposed on the side of the lid facing the opening of the inner liner;
[0008] The guide member is configured to extend obliquely toward the opening of the inner liner, and the bottom end of the guide member extends along the direction of gravity and intersects with the water collection surface formed by the periphery of the opening of the inner liner.
[0009] According to this utility model, in some embodiments, the guide portion is configured as at least one of a concave arcuate surface or a segmented folded surface.
[0010] According to this utility model, in some embodiments, the inner wall of the lid is provided with a plurality of circumferentially uniformly arranged limiting members, one end of the limiting member near the flow guide is recessed to form a limiting groove, and the top periphery of the flow guide is embedded in the limiting groove.
[0011] According to this utility model, in some embodiments, the lid of the kettle is provided with a plurality of positioning posts on the side facing the flow guide, and the flow guide is provided with a mounting part coaxial with the positioning posts.
[0012] The electric kettle with a replaceable inner liner also includes a locking component, which passes through the mounting portion and the positioning post in sequence.
[0013] According to this utility model, in some embodiments, the lid of the kettle is provided with a plurality of positioning posts on the side facing the flow guide, and the flow guide is provided with a mounting part coaxial with the positioning posts.
[0014] The mounting part is sleeved on the outer wall of the positioning post and fixed by interference fit, or the positioning post is sleeved on the outer wall of the mounting part and fixed by interference fit.
[0015] According to this utility model, in some embodiments, the periphery of the opening of the inner liner extends outward in the horizontal direction to form a flange structure, and the flange structure is provided with a downwardly protruding rolled edge structure.
[0016] The body of the kettle is configured with a support portion to hold the flanged structure, and the support portion is recessed to form a positioning groove to accommodate the flanged structure and restrict the horizontal movement of the inner liner.
[0017] According to this utility model, in some embodiments, the inner lining has multiple inwardly protruding arc-shaped ribs distributed along the circumferential direction on its inner peripheral wall.
[0018] According to this utility model, in some embodiments, the extension direction of the arc-shaped rib is inclined relative to the axis of the inner liner, or the extension direction of the arc-shaped rib is parallel to the axis of the inner liner.
[0019] According to this utility model, in some embodiments, the outer peripheral wall of the inner liner is provided with a groove structure along the circumferential direction corresponding to the position of the arc-shaped convex rib, and the cross-sectional shape of the groove structure is complementary to the protruding shape of the arc-shaped convex rib.
[0020] According to this utility model, in some embodiments, the kettle body includes: a handle hinged to the kettle lid and a steam sensor switch, wherein a sensing cavity for accommodating the steam sensor switch is formed inside the handle;
[0021] The handle has a steam guide hole on its side wall, and the lid has a steam conduit. One end of the steam conduit is formed inside the lid to collect steam, and the other end of the steam conduit extends to the steam guide hole, which connects the steam conduit to the sensing cavity.
[0022] The electric kettle with a replaceable inner liner according to this utility model has the following beneficial technical effects: the inner liner can be removed from the kettle body, facilitating thorough cleaning or replacement, avoiding the accumulation of scale and bacteria, and is especially suitable for shared use in hotels and other similar settings. Steam rises to the guide component and condenses into water droplets upon encountering cold air. These droplets are guided by an inclined guide section extending above the opening of the inner liner, directing the condensate along the inclined direction of the guide section and converging at the bottom of the guide section. The bottom of the guide section extends along the direction of gravity and intersects with the water collection surface, allowing the condensate to drip onto the water collection surface under gravity and flow back into the inner liner. This prevents disorderly dripping of condensate, prevents condensate from overflowing to the outside of the kettle body, and prevents condensate from flowing into the gap between the kettle body and the inner liner, eliminating the risk of electric leakage and hygiene hazards. This electric kettle with a replaceable inner liner achieves both hygiene and safety. Attached Figure Description
[0023] Figure 1 A schematic diagram of the electric kettle with a replaceable inner liner provided by this utility model.
[0024] Figure 2 for Figure 1 A cross-sectional diagram of an electric kettle with a replaceable inner liner along section line AA.
[0025] Figure 3 for Figure 2 The enlarged view shown in center circle B;
[0026] Figure 4 A schematic diagram showing the guide section being configured as a concave arc-shaped surface;
[0027] Figure 5 A schematic diagram showing the guide section configured as a plane;
[0028] Figure 6 A schematic diagram showing a mounting part coaxial with the positioning post for the flow guide component;
[0029] Figure 7 This is a schematic diagram showing that the inner wall of the inner liner has multiple arc-shaped ribs distributed circumferentially.
[0030] Figure 8 A schematic diagram showing that the outer circumferential wall of the inner liner has a groove structure corresponding to the position of the arc-shaped convex rib along the circumferential direction;
[0031] Figure 9 This is a schematic diagram of the inner liner unfolding, where the extension direction of the arc-shaped ribs is parallel to the axis of the inner liner;
[0032] Figure 10 This is a schematic diagram of the inner liner unfolding, where the extension direction of the arc-shaped ribs is inclined relative to the axis of the inner liner. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0034] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are used only to indicate relative positional relationships; these relationships may change accordingly when the absolute position of the described object changes. The drawings in this disclosure are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this disclosure are merely structural schematic diagrams.
[0035] Figure 1 This is a schematic diagram of an electric kettle with a replaceable inner liner according to the present invention. Figures 1 to 10 An electric kettle 100 with a replaceable inner liner is shown, comprising: a kettle body 10, an inner liner 20, a lid 30, a flow guide 40, and a heating base 70. The kettle body 10 has an internal mounting cavity 11; the inner liner 20 is detachably disposed within the mounting cavity 11; the lid 30 is hinged to the kettle body 10 to cover the opening 21 of the inner liner 20; the flow guide 40 is disposed on the side of the lid 30 facing the opening 21 of the inner liner 20; the flow guide 40 is configured with a guide portion 41 extending obliquely toward the opening 21 of the inner liner 20, the bottom end 411 of the guide portion 41 extending along the direction of gravity along a line C intersecting with a water collection surface 22 formed by the periphery of the opening 21 of the inner liner 20. The heating base 70 heats the liquid inside the inner liner 20 via an electric heating element (such as a metal heating plate or an electromagnetic coil).
[0036] The kettle body 10 has an internal mounting cavity 11 for accommodating and securing the inner liner 20. The inner liner 20 is used to directly hold water or other liquids and is heated by the heating base 70. An opening 21 is used for adding water, pouring water, and venting steam, while a water collection surface 22 collects condensate. The inner liner 20 can be removed from the kettle body 10 for thorough cleaning or replacement, preventing the accumulation of scale and bacteria, making it particularly suitable for shared use in hotels and other similar settings. The kettle lid 30 covers the opening 21 of the inner liner 20 to prevent steam and hot water from splashing during heating. The kettle lid 30 is connected to the kettle body 10 via a hinged structure, enabling opening and closing. Steam rises to the guide 40 and condenses into water droplets upon contact with the condenser. The droplets extend obliquely through the guide 41 to the opening 21 of the inner liner 20, guiding the condensate to flow along the oblique direction of the guide 41 and converge at the bottom 411 of the guide 41. The bottom 411 of the guide 41 extends along the direction of gravity, line C, which intersects with the water collection surface 22. Under the influence of gravity, the condensate drips onto the water collection surface 22 and flows back to the inner liner 20, preventing the condensate from dripping randomly, preventing the condensate from overflowing to the outside of the kettle body 10, and preventing the condensate from flowing into the gap between the kettle body 10 and the inner liner 20. This eliminates the risk of electric leakage and hygiene hazards. The electric kettle 100 with a replaceable inner liner achieves both hygiene and safety.
[0037] For example, in some embodiments, the guide portion 41 is configured as at least one of a concave arcuate surface 41a or a flat surface 41b. (See also...) Figure 4 As shown, the surface tension of the concave arc-shaped curved surface 41a gathers and disperses water droplets, causing them to naturally converge along the curved surface to the bottom end 411 of the guide portion 41. This allows the water droplets to drip onto the water collection surface 22 under gravity, or the dispersed water droplets, while converging at the bottom end 411 of the guide portion 41, drip onto the water collection surface 22 under gravity, preventing the disorderly flow of condensed water. (See reference...) Figure 5 As shown, the inclined plane 41b guides the dispersed water droplets to naturally converge to the bottom end 411 of the guide part 41, so that they fall to the water collection surface 22 under the action of gravity, or the dispersed water droplets fall to the water collection surface 22 under the action of gravity during the process of converging at the bottom end 411 of the guide part 41, thus avoiding the disorderly flow of condensed water.
[0038] For example, in some embodiments, the guide section 41 may also be configured as at least one concave arc-shaped curved surface segment (not shown) and at least one planar segment (not shown) connected together. Adjacent concave arc-shaped curved surface segments and planar segments can be smoothly transitioned by arcs. The concave arc-shaped curved surface segment can buffer the impact of high-speed steam and reduce the splashing of condensate, while the planar segment can guide the condensate in a directional manner to ensure that it falls accurately into the water collection surface 22.
[0039] For example, in some embodiments, plane 41b may be configured as a segmented folded surface (not shown), with different angles, such as 20° to 30° at the top and 35° to -45° at the bottom, thereby achieving segmented control of the water droplet flow rate. The top slows down the water droplet flow, preventing water droplet splashing caused by steam impact; the bottom accelerates the water droplet flow, ensuring that condensate quickly leaves the guide surface 41 and falls completely into the water collection surface 22, preventing water droplet residue and shortening the water droplet descent time.
[0040] For example, refer Figure 2 and Figure 3 As shown, in some embodiments, the inner wall of the lid 30 is provided with a plurality of circumferentially uniformly arranged limiting members 31. A limiting groove 32 is recessed at one end of the limiting member 31 near the guide member 40, and the top periphery 42 of the guide member 40 is embedded in the limiting groove 32. The plurality of circumferentially uniformly arranged limiting members 31 ensure that the guide member 40 and the lid 30 maintain a precise relative position, ensuring that the guiding part 41 of the guide member 40 is always aligned with the opening 21 of the inner liner 20, guaranteeing accurate return of condensate to the inner liner 20. The embedded cooperation between the top periphery 42 and the limiting groove 32 ensures that the guide member 40 is stably fixed to the lid 30, preventing displacement or detachment. A sealed space is formed between the guide member 40 and the lid 30, preventing the infiltration of steam and external contaminants, and preventing water accumulation and bacterial growth.
[0041] For example, refer Figure 6 As shown, in some embodiments, the kettle lid 30 has several positioning posts 33 on the side facing the guide member 40, and the guide member 40 has a corresponding mounting part 43 coaxial with the positioning posts 33. The electric kettle 100 with a replaceable inner liner also includes a locking member 51, which passes through the mounting part 43 and the positioning posts 33 in sequence. The positioning posts 33 ensure that the installation position of the guide member 40 and the kettle lid 30 is accurately aligned, avoiding assembly deviations. The mounting part 43 and the positioning posts 33 are coaxially engaged, and the locking member 51 passes through the mounting part 43 and the positioning posts 33 to provide mechanical support for the guide member 40, improving the fixing effect of the guide member 40. The locking member 51 (such as a screw or a clip) supports manual disassembly without tools or with simple tools, facilitating cleaning of the guide member 40 and the inside of the kettle lid 30, and the guide member 40 can be replaced individually, reducing maintenance costs.
[0042] For example, in some embodiments, the lid 30 has a plurality of positioning posts 33 on the side facing the guide member 40, and the guide member 40 has a corresponding mounting portion 43 coaxial with the positioning posts 33; the mounting portion 43 is sleeved on the outer wall of the positioning posts 33 and fixed by an interference fit (this state is not shown), or the positioning posts 33 are sleeved on the outer wall of the mounting portion 43 and fixed by an interference fit (this state is not shown). The positioning posts 33 can ensure that the installation positions of the guide member 40 and the lid 30 are accurately aligned, avoiding assembly deviations. The coaxial fit between the mounting portion 43 and the positioning posts 33, and the interference fit connection between the positioning posts 33 and the mounting portion 43, firmly fixes the guide member 40 and the lid 30, preventing the guide member 40 from loosening and falling off.
[0043] For example, refer Figure 6 As shown, in some embodiments, the periphery of the opening 21 of the inner liner 20 extends outward in a horizontal direction to form a flange structure 23, and the flange structure 23 has a downwardly protruding rolled edge structure 24; the body of the pot 10 is constructed with a support portion 12 to support the flange structure 23, and the support portion 12 is recessed to form a positioning groove 121 to accommodate the rolled edge structure 24 and restrict the horizontal movement of the inner liner 20. The flange structure 23 extends horizontally and forms a large-area contact with the support portion 12, providing stable support for the inner liner 20 through the support portion 12 and evenly distributing the weight of the inner liner 20 to prevent local stress concentration. The positioning groove 121 restricts the horizontal movement of the inner liner 20, preventing the inner liner 20 from shaking and causing water to seep into the pot body 10 or causing abnormal noises due to collision. Furthermore, the positioning groove 121 is centered with the rolled edge structure 24, which facilitates alignment and installation. During disassembly, the inner liner 20 can be lifted vertically, thereby achieving quick disassembly and assembly of the inner liner 20.
[0044] For example, refer Figure 7 As shown, in some embodiments, the inner circumferential wall 25 of the inner liner 20 has a plurality of inwardly protruding arc-shaped ribs 251 distributed circumferentially. The arc-shaped ribs 251 can serve as reinforcing ribs of the inner liner 20, improving its resistance to thermal deformation. Furthermore, the arc-shaped ribs 251 can increase the contact area with the liquid, improving the heat exchange efficiency with water, thereby enhancing heating uniformity. In some embodiments, refer to... Figure 10 As shown, the extending direction of the arc-shaped rib 251 is inclined relative to the axis Q of the inner liner 20, or, refer to Figure 9 As shown, the extension direction of the arc-shaped rib 251 is parallel to the axis Q of the inner liner 20.
[0045] For example, refer Figure 8 As shown, in some embodiments, the outer peripheral wall 26 of the inner liner 20 is provided with a groove structure 261 along the circumferential direction corresponding to the position of the arc-shaped rib 251. The cross-sectional shape of the groove structure 261 is complementary to the protrusion shape of the arc-shaped rib 251. The groove structure 261 and the arc-shaped rib 251 form a symmetrical stress distribution, which can further improve the heat deformation resistance of the inner liner 20.
[0046] For example, refer Figure 2 As shown, in some embodiments, the kettle body 10 includes a handle 13 hinged to the lid 30 and a steam sensor switch 60. The handle 13 has an internal sensing cavity 132 that houses the steam sensor switch 60. A steam guide hole 131 is provided on the side wall of the handle 13. The lid 30 has a steam conduit 34, with one end opening 21 formed inside the lid 30 to collect steam. The other end of the steam conduit 34 extends to the steam guide hole 131, which connects the steam conduit 34 to the sensing cavity 132. Steam rises from the opening 21 of the inner liner 20 and is guided by the guide member 40 to the inlet of the steam conduit 34 inside the lid 30. The steam flows along the steam conduit 34, and the outlet end of the steam conduit 34 aligns with the steam guide hole 131 of the handle 13, allowing steam to enter the sensing cavity 132. The steam contacts the steam sensor switch 60 inside the sensing cavity 132, triggering an electrical signal to cut off the heating power.
[0047] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. An electric kettle with a replaceable inner liner, characterized in that, include: The body of the kettle, with an installation cavity formed inside the body; An inner liner, which is detachably disposed in the mounting cavity; A lid, which is hinged to the body of the pot to cover the opening of the inner liner; A flow guide is disposed on the side of the lid facing the opening of the inner liner; The guide member is configured to extend obliquely toward the opening of the inner liner, and the bottom end of the guide member extends along the direction of gravity and intersects with the water collection surface formed by the periphery of the opening of the inner liner.
2. The electric kettle with a replaceable inner liner according to claim 1, characterized in that, The guide portion is configured as at least one of a concave arcuate surface or a segmented folded surface.
3. The electric kettle with a replaceable inner liner according to claim 1, characterized in that, The inner wall of the lid is provided with a plurality of limiting members evenly arranged in the circumferential direction. The end of the limiting member near the flow guide is recessed to form a limiting groove, and the top periphery of the flow guide is embedded in the limiting groove.
4. The electric kettle with a replaceable inner liner according to claim 3, characterized in that, The lid of the kettle is provided with a plurality of positioning posts on the side facing the flow guide, and the flow guide is provided with a mounting part coaxial with the positioning posts. The electric kettle with a replaceable inner liner also includes a locking component, which passes through the mounting portion and the positioning post in sequence.
5. The electric kettle with a replaceable inner liner according to claim 3, characterized in that, The lid of the kettle is provided with a plurality of positioning posts on the side facing the flow guide, and the flow guide is provided with a mounting part coaxial with the positioning posts. The mounting part is sleeved on the outer wall of the positioning post and fixed by interference fit, or the positioning post is sleeved on the outer wall of the mounting part and fixed by interference fit.
6. The electric kettle with a replaceable inner liner according to claim 1, characterized in that, The opening periphery of the inner liner extends outward in the horizontal direction to form a flange structure, and the flange structure has a downward protruding rolled edge structure. The body of the kettle is configured with a support portion to hold the flanged structure, and the support portion is recessed to form a positioning groove to accommodate the flanged structure and restrict the horizontal movement of the inner liner.
7. The electric kettle with a replaceable inner liner according to claim 1, characterized in that, The inner liner has multiple inwardly protruding arc-shaped ribs distributed along its circumferential direction on its inner circumferential wall.
8. The electric kettle with a replaceable inner liner according to claim 7, characterized in that, The extension direction of the arc-shaped rib is inclined relative to the axis of the inner liner, or the extension direction of the arc-shaped rib is parallel to the axis of the inner liner.
9. The electric kettle with a replaceable inner liner according to claim 7, characterized in that, The outer peripheral wall of the inner liner is provided with a groove structure along the circumferential direction corresponding to the position of the arc-shaped rib, and the cross-sectional shape of the groove structure is complementary to the protrusion shape of the arc-shaped rib.
10. The electric kettle with a replaceable inner liner according to claim 1, characterized in that, The kettle body includes: a handle hinged to the kettle lid and a steam sensor switch, wherein a sensing cavity for accommodating the steam sensor switch is formed inside the handle; The handle has a steam guide hole on its side wall, and the lid has a steam conduit. One end of the steam conduit is formed inside the lid to collect steam, and the other end of the steam conduit extends to the steam guide hole, which connects the steam conduit to the sensing cavity.