An electric kettle with heat preservation function

Abstract

This invention provides an electric kettle with a heat preservation function, relating to the field of electric kettle technology. It includes a kettle body with a heating plate installed at the bottom and a sterilization component. The sterilization component includes an inner liner fixedly connected to the kettle body, a sliding shell slidably connected to the inner liner, and an aluminum spring fixedly connected to the sliding shell. The aluminum spring is fixedly connected to the inner liner. When the water temperature drops below 60°C, the aluminum spring retracts and resets, driving the sliding shell to move the temperature sensor down to the thickest area of ​​the inner liner. If the water temperature in this area is below 55°C, the heating plate is triggered to emit an instantaneous 85°C high-temperature pulse for 3 minutes, completely inactivating bacteria before natural cooling. This utilizes the thermal expansion properties of aluminum to target the most dangerous temperature zone. Simultaneously, manual pressing of the sensor via the pouring assembly enables immediate, on-demand sterilization, solving the problem of bacterial growth that can occur with long-term constant temperature in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of electric kettle technology, and in particular to an electric kettle with heat preservation function. Background Technology

[0002] With the fast pace of modern life, electric kettles are widely used in various scenarios due to their rapid heating. As living standards improve, users' functional requirements for electric kettles go beyond simply boiling water; they also want to maintain water temperature for extended periods. The market is driving electric kettles to expand into heat preservation functions, and the industry is paying more attention to their multi-functionality and energy conservation. These types of electric kettles typically optimize the kettle body structure, such as using a double-walled vacuum design to reduce heat conduction, and are equipped with temperature sensing devices that activate low-power heating when the water temperature is below the set value to achieve heat preservation, thus meeting diverse needs. This approach is of great significance and has promising prospects.

[0003] However, in the existing technology, most electric kettles with heat preservation function reduce heat conduction through double-layer vacuum design and are equipped with temperature sensing devices. When the water temperature is lower than the set value, low-power heating is activated to achieve heat preservation. However, when keeping the water warm for a long time, the water is kept at a warm temperature of 40-60℃, which may increase the risk of microbial growth. Although the risk is controllable in a home environment, it is easy to cause user concerns, and there is still room for improvement. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an electric kettle with heat preservation function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electric kettle with heat preservation function, comprising a kettle body, wherein a heating plate is installed at the bottom of the kettle body, and further comprising:

[0006] The sterilization component includes an inner liner fixedly connected to the kettle body, a sliding shell slidably connected to the inner liner, an aluminum spring fixedly connected to the sliding shell by bolts, the aluminum spring being fixedly connected to the inner liner, a vertical rod fixedly connected to the sliding shell, a top sliding frame fixedly connected to the vertical rod, a temperature sensor fixedly connected to the top sliding frame by a series rod, and a water pouring component connected to the sterilization component.

[0007] In a preferred embodiment, the inner liner has a water outlet, and the temperature sensor is slidably connected to the side of the inner liner near the water outlet.

[0008] The above technical solution is adopted as follows: by opening a water outlet on the inner liner, it is easy to realize the basic water dispensing function of the kettle body, and avoid the inner liner completely blocking the kettle body. By setting a temperature sensor to slide on the side of the inner liner near the water outlet, it is easy to use the temperature sensor to block the inner liner (the ratio of the inner liner's long axis to its short axis is 2:1) during use. During use, a rubber ring that is compatible with the temperature sensor is fixed inside the water outlet.

[0009] In a preferred embodiment, the water pouring assembly includes a sliding plate slidably connected to the kettle body, a lever connected to the sliding plate, and a temperature sensor slidably connected to the side of the lever away from the sliding plate.

[0010] The above technical solution is adopted: when in use, a sliding plate is set up, and when the sliding plate moves, the temperature sensor is pressed down by a lever, so that the user can easily take water at any time.

[0011] In a preferred embodiment, a rotating shaft is rotatably connected to the kettle body, and the lever is rotatably connected to the rotating shaft.

[0012] The above technical solution is adopted: by rotating a shaft on the kettle body, the temperature sensor can be pressed down when the lever rotates on the shaft during use.

[0013] In a preferred embodiment, a universal joint is fixedly connected to the sliding plate, and the side of the universal joint away from the sliding plate is fixedly connected to the lever.

[0014] The above technical solution allows for a more flexible connection between the sliding plate and the lever when in use, thanks to the universal joint fixedly connected to the sliding plate.

[0015] In a preferred embodiment, an opening is provided on the side of the kettle body near the rotating shaft, and the rotating shaft is rotatably connected to the opening on the kettle body.

[0016] The above technical solution is adopted: by setting an opening, it is easy to embed the rotating shaft in the opening. In actual application, a sealing ring can be placed inside the opening so that the occasional rotation of the rotating shaft will not affect the sealing performance.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] When the water temperature drops below 60℃, the aluminum spring retracts and resets, driving the sliding shell to move the temperature sensor down to the thickest area of ​​the inner tank. If the water temperature in this area is below 55℃, the heating plate is triggered to emit an instantaneous 85℃ high-temperature pulse for 3 minutes to completely inactivate bacteria before natural cooling. This breaks the traditional continuous heat preservation mode, with no electronic sensors involved throughout the process. It utilizes the thermal expansion characteristics of aluminum to target the most dangerous temperature zone. At the same time, the sensor can be manually pressed down by the water-pouring component to achieve instant sterilization on demand, solving the problem of bacteria growth that may occur in the prior art due to long-term constant temperature. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an electric kettle with heat preservation function provided by this utility model.

[0020] Figure 2 This is a schematic diagram showing the heating plate and the kettle body of an electric kettle with heat preservation function in a disassembled state.

[0021] Figure 3 This utility model provides a schematic diagram of the disassembled body and inner liner of an electric kettle with heat preservation function.

[0022] Figure 4 This utility model provides a schematic diagram of the location of the temperature sensor in an electric kettle with heat preservation function.

[0023] Figure 5 This utility model provides a schematic diagram of the aluminum spring clip position structure of an electric kettle with heat preservation function.

[0024] Legend:

[0025] 1. The kettle body;

[0026] 2. Sterilization component; 21. Inner liner; 22. Sliding shell; 23. Aluminum spring; 24. Vertical rod; 25. Top sliding frame; 26. Connecting rod; 27. Temperature sensor;

[0027] 3. Heating plate;

[0028] 4. Water pouring assembly; 41. Paddle; 42. Shaft; 43. Universal joint; 44. Sliding plate. Detailed Implementation

[0029] 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.

[0030] like Figure 1-5 As shown, this utility model provides a technical solution: an electric kettle with heat preservation function, including a kettle body 1, a heating plate 3 (SJT09 model PTC heating plate) installed at the bottom of the kettle body 1, and further including:

[0031] The sterilization component 2 includes an inner liner 21 fixedly connected inside the kettle body 1, a sliding shell 22 slidably connected to the inner liner 21, an aluminum spring 23 fixedly connected to the sliding shell 22 by bolts, the aluminum spring 23 being fixedly connected to the inner liner 21, a vertical rod 24 fixedly connected to the sliding shell 22, a top sliding frame 25 fixedly connected to the vertical rod 24, a temperature sensor 27 fixedly connected to the top sliding frame 25 by a series rod 26, and a water pouring component 4 connected to the sterilization component 2.

[0032] When the water temperature drops below 60 degrees Celsius, the aluminum spring 23 retracts and resets, driving the sliding shell 22 to move the temperature sensor 27 (model: Epcos (TDK) B57863S0103F040) down to the thickest area of ​​the inner tank 21. If the water temperature in this area is below 55 degrees Celsius, the heating plate 3 is triggered to emit a high-temperature pulse of 85 degrees Celsius for three minutes to completely inactivate bacteria before natural cooling. This breaks the traditional continuous heat preservation mode, with no electronic sensor intervention throughout the process. It utilizes the thermal expansion characteristics of aluminum to target the most dangerous temperature zone. At the same time, the water pouring component 4 allows for manual pressure of the sensor to achieve instant sterilization on demand, solving the problem of bacteria growth that may occur in the prior art due to long-term constant temperature.

[0033] Furthermore, such as Figures 1 to 5 As shown, an outlet is provided on the inner liner 21. The temperature sensor 27 is slidably connected to the side of the inner liner 21 near the outlet. By providing an outlet on the inner liner 21, the basic water dispensing function of the kettle body 1 can be realized, and the inner liner 21 can be prevented from completely blocking the kettle body 1. By setting the temperature sensor 27 to be slidably connected to the side of the inner liner 21 near the outlet, it is convenient to use the temperature sensor 27 to block the inner liner 21 (the ratio of the long axis to the short axis of the inner liner 21 is 2:1) during use. During use, a rubber ring that matches the temperature sensor 27 is fixed inside the water outlet.

[0034] The water pouring assembly 4 includes a sliding plate 44 slidably connected to the kettle body 1. A lever 41 is connected to the sliding plate 44. The side of the lever 41 away from the sliding plate 44 is slidably connected to the temperature sensor 27. When in use, the sliding plate 44 is provided. When the sliding plate 44 is displaced, the lever 41 presses down the temperature sensor 27, making it convenient for the user to take water at any time.

[0035] A rotating shaft 42 is rotatably connected to the kettle body 1, and a lever 41 is rotatably connected to the rotating shaft 42. By having the rotating shaft 42 rotatably connected to the kettle body 1, the lever 41 can easily press down the temperature sensor 27 when rotating on the rotating shaft 42 during use.

[0036] like Figures 1 to 2 As shown, a universal joint 43 is fixedly connected to the sliding plate 44, and the side of the universal joint 43 away from the sliding plate 44 is fixedly connected to the lever 41. By fixing the universal joint 43 to the sliding plate 44, the connection between the sliding plate 44 and the lever 41 is more flexible during use.

[0037] An opening is provided on the side of the kettle body 1 near the rotating shaft 42. The rotating shaft 42 is rotatably connected to the opening on the kettle body 1. The opening facilitates the fitting of the rotating shaft 42 into the opening. In actual application, a sealing ring (model: Joyoung electric kettle lid sealing ring) can be placed inside the opening so that the occasional rotation of the rotating shaft 42 will not affect the sealing performance.

[0038] like Figure 1-5 As shown:

[0039] When in use, as the temperature inside the inner liner 21 gradually decreases, the aluminum spring 23 will undergo a reset deformation after the temperature drops to a certain level, causing the sliding shell 22 to slide down. At this time, the temperature sensor 27, which is electrically connected to the heating plate 3, will be driven down by the sliding shell 22 and slide to the middle layer of the inner liner 21. Since the inner liner 21 is usually set in an elliptical shape, the hot water placed here cools the slowest. When the hot water placed in the middle of the inner liner 21 cools to a certain level, the temperature sensor 27 transmits a signal to the heating plate 3, causing the heating plate 3 to start heating.

Claims

1. An electric kettle with heat preservation function, comprising a hot kettle body (1), a heating plate (3) is installed at the bottom of the hot kettle body (1), characterized in that, Also includes: The sterilization component (2) includes an inner liner (21) fixedly connected to the kettle body (1), a sliding shell (22) slidably connected to the inner liner (21), an aluminum spring (23) fixedly connected to the sliding shell (22), the aluminum spring (23) being fixedly connected to the inner liner (21), a vertical rod (24) fixedly connected to the sliding shell (22), a top sliding frame (25) fixedly connected to the vertical rod (24), a temperature sensor (27) fixedly connected to the top sliding frame (25) via a series rod (26), and a water pouring component (4) connected to the sterilization component (2).

2. The electric kettle with heat preservation function according to claim 1, characterized in that: The inner liner (21) has a water outlet, and the temperature sensor (27) is slidably connected to the side of the inner liner (21) near the water outlet.

3. The electric kettle with heat preservation function according to claim 1, characterized in that: The water pouring assembly (4) includes a sliding plate (44) slidably connected to the kettle body (1), and a lever (41) is connected to the sliding plate (44). The side of the lever (41) away from the sliding plate (44) is slidably connected to a temperature sensor (27).

4. The electric kettle with heat preservation function according to claim 3, characterized in that: A rotating shaft (42) is rotatably connected to the kettle body (1), and the lever (41) is rotatably connected to the rotating shaft (42).

5. The electric kettle with heat preservation function according to claim 3, characterized in that: A universal joint (43) is fixedly connected to the sliding plate (44), and the side of the universal joint (43) away from the sliding plate (44) is fixedly connected to the lever (41).

6. The electric kettle with heat preservation function according to claim 1, characterized in that: An opening is provided on the side of the kettle body (1) near the rotating shaft (42), and the rotating shaft (42) is rotatably connected to the opening on the kettle body (1).

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