Vacuum kettle
By employing a vacuum partition design and filter pore structure in the electric kettle, the problem of scalding on the outer surface of the kettle is solved, achieving both safety and energy-saving effects, and improving the user experience.
Patent Information
- Application Number
- CN202520249669.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-05-31
- Filing Date
- 2025-02-17
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Existing electric kettles have only one metal wall, which has strong heat conductivity. The outer surface of the kettle is easily heated, posing a risk of burns.
The kettle features a vacuum design, with a vacuum layer formed by welding between the inner liner and the outer shell. A grinding process is used to achieve a tight bond, isolating the physical exchange of heat and air. Filter holes and pressure relief holes are also provided in the inner liner to expel steam and hot air.
It improves safety, prevents burns from accidental contact with the outer surface of the kettle, reduces energy consumption, and ensures clean water and a better user experience.
Smart Images
Figure CN223715511U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric heating kettle technical field especially relates to a vacuum kettle. BACKGROUND
[0002] Electric heating kettle is a common household appliance, usually used for fast heating water, supply for cooking tea, coffee or cooking food and so on, electric heating kettle can be directly placed on the power seat when using, can adopt electricity to heat, convenient to use, is widely used in life, electric heating kettle is usually composed of kettle body, handle, lid and electric heating base, its working principle is through electric heating element in the kettle body bottom to heat water to the required temperature, electric heating kettle utilizes steam to make the bimetallic strip of temperature sensing element deform to push the power switch to close the power, stops heating, electric heating kettle has the characteristics such as fast heating speed, convenient operation, has entered thousands of households as small household appliances.
[0003] But in the prior art, the common electric heating kettle usually only has a metal wall, the heat conductivity of the metal wall is strong, the kettle body outer surface is easy to heat when using, when the water temperature in the kettle rises, the kettle body outer surface will also heat rapidly, if accidentally touching the hot kettle body outer surface, it is easy to cause scald, there is a security risk, the safety is low when using. UTILITY MODEL CONTENTS
[0004] The utility model discloses a vacuum kettle, which solves the technical problem of the prior art that the common electric heating kettle usually only has a metal wall, the heat conductivity of the metal wall is strong, the kettle body outer surface is easy to heat when using, when the water temperature in the kettle rises, the kettle body outer surface will also heat rapidly, if accidentally touching the hot kettle body outer surface, it is easy to cause scald, there is a security risk, and the safety is low when using.
[0005] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme: a vacuum kettle, which comprises an electric heating kettle shell, an electric heating kettle inner container is fixedly connected to the inner wall surface of the electric heating kettle shell, a filter hole is formed in the outer surface of the electric heating kettle inner container, a kettle spout is fixedly connected to the outer surface of the electric heating kettle shell, a heat preservation box is slidably embedded in the opening of the electric heating kettle inner container, a kettle cover is fixedly connected to the upper surface of the heat preservation box, a boss is arranged at the bottom of the inner container, the boss is integrally formed with the inner container, and a bottom plate is welded to the inner wall of the boss.
[0006] Further, a base is fixedly connected to the lower surface of the electric heating kettle shell, and a coupler is fixedly connected to the lower surface of the base.
[0007] Further, a handle is fixedly connected to the outer surface of the electric heating kettle shell, and the handle is arranged opposite to the kettle spout.
[0008] Further, the upper surface of the kettle cover is fixedly connected with a mounting seat, and the inside of the mounting seat is threadedly connected with a rotary knob.
[0009] Further, the lower surface of the kettle cover is provided with three pressure relief holes which are equidistantly distributed.
[0010] Further, one side surface of the heat preservation box is provided with a cutaway groove which is located below the three pressure relief holes.
[0011] Compared with the prior art, the kettle has the advantages and positive effects that,
[0012] 1. In the kettle, the electric heating kettle inner container and the electric heating kettle shell adopt a sleeve-in structure and are welded, the heat preservation box and the kettle cover are fixed by welding, the close combination of the heat preservation box and the kettle cover is realized by using a polishing process, high-temperature vacuum furnace is used for vacuumizing, so that the vacuum effect is realized between the electric heating kettle inner container and the electric heating kettle shell, a vacuum layer is formed between the electric heating kettle inner container and the electric heating kettle shell, the physical exchange between heat and air is isolated, and the safety of the product is improved.
[0013] 2. In the kettle, the handle is made of metal stainless steel, titanium or the like, and has a hollow structure, so that the product quality is reduced, the product is convenient to hold, and the handle is connected with the electric heating kettle shell by welding, rivet structure or screw connection. When water in the inner container is continuously heated and evaporated, water vapor and hot air are discharged through the cutaway groove and the pressure relief holes, the kettle cover is prevented from being opened due to the air pressure of the electric heating kettle inner container, heat loss is prevented, energy consumption is saved, the rotary knob is threadedly connected in the inside of the mounting seat, the kettle cover is convenient to hold, and the use experience is improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The utility model provides a three -dimensional structure schematic diagram of vacuum water boiler;
[0015] Figure 2 The utility model provides a sectional three -dimensional structure schematic diagram of vacuum water boiler;
[0016] Figure 3 The utility model provides a Figure 2 The partial enlarged structure schematic diagram of A;
[0017] Figure 4 The utility model provides a three -dimensional structure schematic diagram of vacuum water boiler;
[0018] Figure 5 The utility model provides a three -dimensional structure schematic diagram of vacuum water boiler kettle cover.
[0019] Illustration: 1. Electric kettle outer shell; 2. Handle; 3. Base; 4. Spout; 5. Lid; 6. Mounting base; 7. Knob; 8. Pressure relief hole; 9. Coupler; 10. Electric kettle inner liner; 11. Filter hole; 12. Insulation box; 13. Notched groove; 14. Base plate; 15. Protrusion. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1
[0022] like Figures 1-4 As shown, the present invention provides a technical solution: a vacuum kettle, including an electric heating kettle shell 1, an electric heating kettle inner liner 10 fixedly connected to the inner wall surface of the electric heating kettle shell 1, a filter hole 11 opened on the outer surface of the electric heating kettle inner liner 10, a spout 4 fixedly connected to the outer surface of the electric heating kettle shell 1, a heat preservation box 12 slidably embedded at the opening of the electric heating kettle inner liner 10, a kettle lid 5 fixedly connected to the upper surface of the heat preservation box 12, a protrusion 15 provided at the bottom of the inner liner 10, the protrusion 15 being integrally formed with the inner liner 10, a base plate 14 welded to the inner wall of the protrusion 15, a base 3 fixedly connected to the lower surface of the electric heating kettle shell 1, and a coupler 9 fixedly connected to the lower surface of the base 3.
[0023] In this embodiment, the inner liner 10 and the outer shell 1 of the electric kettle adopt an insert structure using welding. The insulation box 12 and the lid 5 are fixed by welding. A grinding process is used to achieve a tight bond between the two. After vacuuming in a high-temperature vacuum furnace, a vacuum effect is achieved between the inner liner 10 and the outer shell 1, forming a vacuum barrier that isolates the physical exchange of heat with the air. This prevents accidental contact with the outer shell 1 during use and avoids burns, thus improving product safety. The electric kettle features a three-piece overlapping structure consisting of the outer shell 1 and the spout 4. This non-interfering structure allows the kettle body to form a vacuum layer without affecting the product's function, performance, or appearance. The filter hole 11 prevents limescale, tea leaves, or other impurities from entering the spout 4, ensuring clean water quality during pouring. At the same time, the filter hole 11 allows for smoother water flow, ensuring the cleanliness and hygiene of the kettle spout and improving the user experience. The protrusion 15 can engage the base plate 14, and then the base plate 14 and the protrusion 15 are welded together. The protrusion 15 facilitates the welding of the base plate 14 to the inner liner 10.
[0024] Embodiment 2
[0025] As Figures 1-4 shown, the outer surface of the electric heating kettle shell 1 is fixedly connected with a handle 2, the handle 2 is arranged opposite to a spout 4, the upper surface of a kettle cover 5 is fixedly connected with a mounting seat 6, the inside of the mounting seat 6 is threadedly connected with a rotary knob 7, the lower surface of the kettle cover 5 is provided with three pressure relief holes 8, the three pressure relief holes 8 are equidistantly distributed, and one side surface of a heat preservation box 12 is provided with a cutaway groove 13, the cutaway groove 13 is located below the three pressure relief holes 8.
[0026] In this embodiment, the handle 2 is made of metal stainless steel, titanium or the like, the hollow structure reduces the product quality, is convenient to take, and is connected with the electric heating kettle shell 1 through welding or rivet structure or screw connection, when water in the inner container continuously evaporates under heating, water vapor and hot air are discharged through the cutaway groove 13 and the pressure relief holes 8, the kettle cover 5 is prevented from being opened due to the influence of the air pressure of the electric heating kettle inner container 10, heat loss is prevented, energy consumption is saved, the rotary knob 7 is threadedly connected in the inside of the mounting seat 6, it is convenient to take the kettle cover 5 by force, and the use experience is improved.
[0027] Working principle: as Figures 1-4 shown, the electric heating kettle inner container 10 and the electric heating kettle shell 1 adopt a sleeving structure and are welded, the heat preservation box 12 and the kettle cover 5 are fixed through welding, the close combination of the two is realized by using a polishing process, vacuumization is carried out through a high-temperature vacuum furnace, so that the vacuum effect is realized between the electric heating kettle inner container 10 and the electric heating kettle shell 1, a vacuum layer is formed between the electric heating kettle inner container 10 and the electric heating kettle shell 1, the physical exchange between heat and air is isolated, the filter hole 11 prevents scale, tea dregs or other impurities from entering the spout 4, so that the water quality is clean when pouring water, at the same time, the filter hole 11 makes the water flow more smooth, the handle 2 is made of metal stainless steel, titanium or the like, the hollow structure reduces the product quality, is convenient to take, and is connected with the electric heating kettle shell 1 through welding or rivet structure or screw connection, when water in the inner container continuously evaporates under heating, water vapor and hot air are discharged through the cutaway groove 13 and the pressure relief holes 8, the kettle cover 5 is prevented from being opened due to the influence of the air pressure of the electric heating kettle inner container 10, heat loss is prevented, energy consumption is saved, the rotary knob 7 is threadedly connected in the inside of the mounting seat 6, it is convenient to take the kettle cover 5 by force.
[0028] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, any skilled person in the art can change or modify the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.
Claims
1. A vacuum kettle, comprising an electric heating kettle shell (1), characterized in that: The inner wall surface of the electric kettle shell (1) is fixedly connected to the inner liner (10). The outer surface of the inner liner (10) is provided with a filter hole (11). The outer surface of the electric kettle shell (1) is fixedly connected to the spout (4). The opening of the inner liner (10) is slidably embedded with a heat preservation box (12). The upper surface of the heat preservation box (12) is fixedly connected to the lid (5). The bottom of the inner liner (10) is provided with a protrusion (15). The protrusion (15) is integrally formed with the inner liner (10). The inner wall of the protrusion (15) is welded with a bottom plate (14).
2. The vacuum kettle according to claim 1, characterized in that: A base (3) is fixedly connected to the lower surface of the outer shell (1) of the electric kettle, and a coupler (9) is fixedly connected to the lower surface of the base (3).
3. The vacuum kettle according to claim 2, characterized in that: A handle (2) is fixedly connected to the outer surface of the electric kettle shell (1), and the handle (2) is positioned opposite to the spout (4).
4. The vacuum kettle according to claim 1, characterized in that: The upper surface of the lid (5) is fixedly connected to a mounting base (6), and the mounting base (6) is internally threaded with a knob (7).
5. The vacuum kettle according to claim 4, characterized in that: The lower surface of the lid (5) is provided with three pressure relief holes (8), which are equidistantly distributed.
6. The vacuum kettle according to claim 1, characterized in that: The heat preservation box (12) has a notch (13) on one side surface, which is located below the three pressure relief holes (8).