Liquid heating container

Abstract

The invention belongs to the technical field of heating, and particularly provides a liquid heating container. The electric kettle aims at solving the problem that when an existing electric kettle preserves heat, water temperature fluctuation is large. The liquid heating container comprises a container body, a liquid amount sensor, a first temperature sensor, a second temperature sensor, a heating device and a controller. The container body is used for containing liquid. The liquid amount sensor is used for detecting the amount of liquid in the container body. The first temperature sensor is used for detecting the current temperature of liquid in the container body. The second temperature sensor is used for detecting the environment temperature. Wherein the heating device is used for heating liquid in the container body. Wherein the controller is configured to determine the heating power of the heating device and control the heating device to determine the heating power to operate according to the liquid amount, the current temperature and the environment temperature when the current temperature reaches the preset temperature. The technical problems are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of heating, and specifically provides a liquid heating container. Background Art

[0002] In traditional electric kettles, heat will inevitably be lost to the surrounding environment through the container wall, causing the water temperature in the container to gradually decrease, and the long-term heat preservation effect is poor.

[0003] In order to maintain the water temperature, some electric kettles will start the heating device when the water temperature is low, heating the water in the container to make the water reach a higher temperature again. However, this method is prone to large fluctuations in water temperature and poor user experience. Summary of the invention

[0004] One purpose of the present invention is to solve the problem of large water temperature fluctuation when the existing electric kettle is keeping warm.

[0005] To achieve the above object, the present invention provides a liquid heating container, comprising:

[0006] The container body is used to hold liquid;

[0007] A liquid volume sensor, used to detect the liquid volume in the container body;

[0008] A first temperature sensor, used to detect the current temperature of the liquid in the container body;

[0009] A second temperature sensor is used to detect the ambient temperature;

[0010] A heating device, used for heating the liquid in the container body;

[0011] The controller is configured to determine the heating power of the heating device according to the liquid amount, the current temperature and the ambient temperature when the current temperature reaches the preset temperature, and control the heating device to operate at the determined heating power.

[0012] Optionally, the controller determines the heating power by the following formula:

[0013]

[0014] Among them, P is the heating power, m is the mass of the liquid, c is the specific heat capacity of the liquid, k is the unit temperature, t1 is the current temperature, t2 is the ambient temperature, α is the temperature reduction coefficient, and η is the thermal efficiency of the heating device.

[0015] Optionally, k is 1°C.

[0016] Optionally, the liquid volume sensor is a weighing sensor.

[0017] Optionally, the heating device is arranged on the bottom side of the container body; and / or,

[0018] The heating device is arranged on the outside of the container body and is thermally connected to the container body.

[0019] Optionally, the container body comprises an inner liner and a heat-insulating layer arranged outside the inner liner.

[0020] A waterproof and breathable membrane is arranged on the outer side of the thermal insulation layer to prevent the steam generated during the operation of the liquid heating container from entering the interior of the thermal insulation layer.

[0021] Optionally, the insulation layer is connected end to end in the circumferential direction of the inner liner, and a first concave-convex structure is provided at the front end of the insulation layer, and a second concave-convex structure is provided at the rear end of the insulation layer, and the first concave-convex structure and the second concave-convex structure are meshed to facilitate the insulation layer to be sleeved on the outside of the inner liner.

[0022] Optionally, the liquid heating container further comprises an operating module, and the operating module is used to set the preset temperature of the liquid heating container.

[0023] Optionally, the liquid heating container further comprises a display module, and the display module is used to display the preset temperature and / or the current temperature.

[0024] Optionally, the liquid heating container is an electric kettle or a thermos kettle.

[0025] Based on the foregoing description, those skilled in the art will be able to understand that, in the aforementioned technical solution of the present invention, by configuring the liquid heating container with a liquid quantity sensor for detecting the amount of liquid in the container body, a first temperature sensor for detecting the current temperature of the liquid in the container body, and a second temperature sensor for detecting the ambient temperature, and when the current temperature reaches the preset temperature, the controller determines the heating power of the heating device according to the liquid quantity, the current temperature and the ambient temperature, and controls the heating device to determine the heating power operation, so that the liquid in the container body can always be maintained at the preset temperature, thereby avoiding or reducing temperature fluctuations and improving the user experience.

[0026] Furthermore, those skilled in the art will appreciate that the heating power of the heating device determined by the above formula in the present invention can match the heat dissipation rate of the liquid in the liquid heating container, thereby compensating for the heat lost by the liquid in the liquid heating container and enabling the liquid in the liquid heating container to always be maintained near a preset temperature.

[0027] Furthermore, by configuring an operating module for the liquid heating container, the user can set a preset temperature of the liquid heating container through the operating module, thereby improving the user's experience.

[0028] Furthermore, by configuring a display module for the liquid heating container and making the display module display the preset temperature and / or the current temperature, the working status of the liquid heating container can be visualized, further improving the user experience.

[0029] Other beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand the improved purposes, features and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same reference numerals indicate the same or similar components or parts in different drawings; the drawings of the present invention are not necessarily drawn to scale.

[0031] In the attached figure:

[0032] Figure 1 is a schematic block diagram of a liquid heating container in the present invention;

[0033] Figure 2 is a first structural exploded view of a liquid heating container in some embodiments of the present invention;

[0034] Figure 3 is a second exploded view of the liquid heating container in some embodiments of the present invention;

[0035] Figure 4 is an axonometric view of a liquid heating container according to some embodiments of the present invention;

[0036] Figure 5 yes Figure 4 A cross-sectional view of the liquid heating container along the AA direction;

[0037] Figure 6 yes Figure 4 A cross-sectional view of the middle shell portion along the BB direction;

[0038] Figure 7 yes Figure 2 and Figure 3 Axonometric view of the center liner;

[0039] Figure 8 yes Figure 2 and Figure 3 Axonometric view of the middle insulation layer;

[0040] Fig. 9 yes Figure 8 Cross-sectional view of the middle insulation layer along the CC direction.

[0041] Description of reference numerals:

[0042] 100, liquid heating container; 110, container body; 111, liner; 112, insulation layer; 1121, waterproof breathable membrane; 11201, first concave-convex structure; 11202, second concave-convex structure; 120, liquid volume sensor; 131, first temperature sensor; 132, second temperature sensor; 140, heating device; 150, controller; 160, cover; 170, outer shell; 180, operation module; 190, display module. DETAILED DESCRIPTION

[0043] It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present invention, rather than all embodiments of the present invention, and these embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0044] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] Furthermore, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Finally, it should be noted that in the description of the present invention, each functional module can be a physical module composed of multiple structures, components or electronic components, or a virtual module composed of multiple programs; each functional module can be a module that exists independently of each other, or a module divided according to the function of an integral module. Those skilled in the art should understand that, under the premise of being able to implement the technical solution described in the present invention, no matter how the composition, implementation and positional relationship of each functional module change, they will not deviate from the technical principle of the present invention, and therefore should fall within the protection scope of the present invention.

[0047] like Figure 1 As shown, in the present invention, the liquid heating container 100 includes a container body 110, a liquid amount sensor 120, a first temperature sensor 131, a second temperature sensor 132, a heating device 140 and a controller 150.

[0048] The container body 110 is used to contain liquid.

[0049] The liquid volume sensor 120 is used to detect the liquid volume in the container body 110 .

[0050] The first temperature sensor 131 is used to detect the current temperature of the liquid in the container body 110 .

[0051] The second temperature sensor 132 is used to detect the ambient temperature.

[0052] The heating device 140 is used to heat the liquid in the container body 110 .

[0053] The controller 150 is configured to determine the heating power of the heating device 140 and control the heating device 140 to operate at the determined heating power according to the liquid volume, the current temperature and the ambient temperature when the current temperature reaches the preset temperature.

[0054] In the present invention, the preset temperature is a value set when the liquid heating container 100 leaves the factory, or a value set by the user, which may specifically be 100°C, 99°C, 98°C, 97.5°C, etc.

[0055] In the present invention, the controller 150 may be an integrated circuit chip having the ability to process signals. The controller 150 may be a general-purpose processor, such as a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, microprocessors, and any other conventional processors.

[0056] Further, in the present invention, the controller 150 can determine the heating power by the following formula:

[0057]

[0058] Among them, P is the heating power of the heating device 140, m is the mass of the liquid in the container body 110, c is the specific heat capacity of the liquid, k is the unit temperature, t1 is the current temperature of the liquid in the container body 110, t2 is the ambient temperature of the environment in which the liquid heating container 100 is located, α is the cooling coefficient, and η is the thermal efficiency of the heating device 140.

[0059] It will be understood by those skilled in the art that the heating power of the heating device 140 determined by the above formula in the present invention can match the heat dissipation rate of the liquid in the liquid heating container 100, thereby compensating for the heat lost by the liquid in the liquid heating container 100, so that the liquid in the liquid heating container 100 can always be maintained near the preset temperature.

[0060] Those skilled in the art can also understand that, since the controller 150 determines the heating power of the heating device 140 based on the liquid volume, current temperature and ambient temperature only when the current temperature reaches the preset temperature, t1 at this time is equal to the preset temperature.

[0061] It should be noted that, in the present invention, the liquid can be any feasible liquid such as water, beverage, wine, etc.

[0062] Those skilled in the art will understand that after the type of liquid is determined, the specific heat capacity of the liquid can be determined. This is common knowledge and will not be further explained here.

[0063] In the present invention, k may be 1° C. Of course, those skilled in the art may also set k to any other feasible value, such as 0.5° C., 1.5° C., 5° C., 10° C., etc., as required.

[0064] It is understood by those skilled in the art that the temperature reduction coefficient α will be affected by the temperature difference between the inside and outside of the liquid heating container 100, and will also be affected by factors such as the material, structure, and size of the liquid heating container 100 itself. Therefore, for each or each type of liquid heating container 100, those skilled in the art can conduct experiments for different temperature liquids at different ambient temperatures as needed, so as to obtain the corresponding laboratory test data summary. The following uses water as an example to illustrate this.

[0065] When the mass of water is 1Kg, the temperature is 100℃, and the ambient temperature is 20℃, the cooling rate of water from 100℃ to 90℃ is 300S / ℃.

[0066] When the mass of water is 0.5Kg, the temperature is 100℃, and the ambient temperature is 20℃, the cooling rate of water from 100℃ to 95℃ is 265S / ℃.

[0067] When the mass of water is 0.5Kg, the temperature is 100℃, and the ambient temperature is 35℃, the cooling rate of water from 100℃ to 95℃ is 293S / ℃.

[0068] When the mass of water is 0.5Kg, the temperature is 80℃, and the ambient temperature is 20℃, the cooling rate of water from 80℃ to 75℃ is 312S / ℃, and so on.

[0069] In the present invention, the liquid volume sensor 120 may be a weighing sensor to directly obtain the mass of the liquid in the container body 110 by weighing. The liquid volume sensor 120 may also be a liquid level sensor to detect the liquid level in the container body 110 through the liquid level sensor, and make each liquid level correspond to a volume of the liquid, and then determine the mass of the liquid in the container body 110 according to the volume and the density of the liquid.

[0070] In the present invention, the first temperature sensor 131 may be any feasible temperature sensor, such as a thermal resistor sensor, a thermocouple sensor, a thermistor sensor, a silicon-based temperature sensor, and the like.

[0071] In the present invention, the second temperature sensor 132 may be any feasible temperature sensor, such as a thermal resistor sensor, a thermocouple sensor, a thermistor sensor, a silicon-based temperature sensor, and the like.

[0072] It is understood by those skilled in the art that, in the present invention, the liquid heating container 100 can be any feasible appliance such as an electric kettle, a thermos kettle, etc. Figures 2 to 9 The liquid heating container 100 of the present invention is illustrated by way of example.

[0073] exist Figures 1 to 7 In some of the embodiments shown, the liquid heating container 100 includes a container body 110, a liquid level sensor 120, a first temperature sensor 131, a second temperature sensor 132, a heating device 140, a controller 150, a cover 160, a shell 170, an operation module 180 and a display module 190.

[0074] The container body 110 includes an inner liner 111 and a heat-insulating layer 112 disposed outside the inner liner 111 .

[0075] like Figure 8 and Fig. 9 As shown, in some embodiments of the present invention, a waterproof and breathable membrane 1121 is provided on the outer side of the thermal insulation layer 112 to prevent the steam generated during the operation of the liquid heating container 100 from entering the interior of the thermal insulation layer 112 .

[0076] The waterproof and breathable membrane 1121 may be a plastic film, an aluminum foil, or any other feasible film.

[0077] Continue reading Figure 8 and Fig. 9 In some embodiments of the present invention, the thermal insulation layer 112 is connected end to end in the circumferential direction of the inner liner 111, and a first concave-convex structure 11201 is provided at the head end of the thermal insulation layer 112, and a second concave-convex structure 11202 is provided at the tail end of the thermal insulation layer 112. The first concave-convex structure 11201 and the second concave-convex structure 11202 are engaged with each other to facilitate the thermal insulation layer 112 to be sleeved on the outside of the inner liner 111.

[0078] Those skilled in the art can understand that the first concave-convex structure 11201 and the second concave-convex structure 11202 can effectively prevent the head and tail ends of the thermal insulation layer 112 from being misaligned, making the connection between the head and tail ends of the thermal insulation layer 112 more secure.

[0079] It should be noted that, in the present invention, the first concave-convex structure 11201 and the second concave-convex structure 11202 are not limited to Figure 8 and Fig. 9 The rectangular structure shown. Those skilled in the art may also set the first concave-convex structure 11201 and the second concave-convex structure 11202 to any other feasible structure, such as an L-shaped hook structure, as required.

[0080] like Figure 5 and Figure 6As shown, in some embodiments of the present invention, the liquid volume sensor 120 is disposed inside the housing 170 and abuts against the container body 110. The liquid volume sensor 120 is configured as a weighing sensor to detect the weight of the liquid in the container body 110 by weighing.

[0081] like Figure 5 and Figure 7 As shown, in some embodiments of the present invention, the first temperature sensor 131 is disposed inside the inner liner 111 to directly contact the liquid inside the inner liner 111 and detect the current temperature of the liquid in the inner liner 111 .

[0082] like Figures 2 to 4 and Figure 6 As shown, in some embodiments of the present invention, the second temperature sensor 132 is disposed on the housing 170 to avoid being affected by the heating device 140 .

[0083] It should be noted that the second temperature sensor 132 may be disposed not only at the bottom of the housing 170 , but also at the top of the housing 170 .

[0084] like Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments of the present invention, the heating device 140 is arranged on the bottom side of the container body 110, and the heating device 140 is arranged on the outside of the container body 110 and is thermally connected to the container body 110, so as to ensure that the heating device 140 can heat the container body 110 while avoiding contact between the heating device 140 and the liquid to prevent leakage.

[0085] Furthermore, although not shown in the figures, the liquid level sensor 120, the first temperature sensor 131, the second temperature sensor 132 and the heating device 140 are respectively electrically connected to the controller 150, so that the controller 150 obtains the data detected by the liquid level sensor 120, the first temperature sensor 131 and the second temperature sensor 132, and the controller 150 controls the operation of the heating device 140.

[0086] like Figures 2 to 4 As shown, in some embodiments of the present invention, the operating module 180 is disposed on the housing 170 and is electrically connected to the controller 150. The operating module 180 is used to set the preset temperature of the liquid heating container 100, so that the user can set the preset temperature of the liquid heating container 100 through the operating module 180, thereby improving the user's experience.

[0087] It should be noted that, in the present invention, the operating module 180 is not limited to the form of the knob shown in the figure, and it can also be a key, or a virtual operating key displayed on a display screen.

[0088] In addition, in other embodiments of the present invention, those skilled in the art may also omit the configuration of the operating module 180 as needed.

[0089] like Figures 2 to 4 As shown, in some embodiments of the present invention, the display module 190 is also disposed on the housing 170 and is electrically connected to the controller 150. The display module 190 is used to display the preset temperature and / or the current temperature, so that the working state of the liquid heating container 100 can be visualized, further improving the user experience.

[0090] In addition, in other embodiments of the present invention, those skilled in the art may also omit the display module 190 as required.

[0091] So far, the technical solution of the present invention has been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art can split and combine the technical solutions in the above embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present invention will fall within the protection scope of the present invention.

Claims

1. A liquid heating container, include: The container body is used to hold liquid; A liquid volume sensor, used to detect the liquid volume in the container body; A first temperature sensor, used to detect the current temperature of the liquid in the container body; A second temperature sensor is used to detect the ambient temperature; A heating device, used for heating the liquid in the container body; The controller is configured to determine the heating power of the heating device according to the liquid amount, the current temperature and the ambient temperature when the current temperature reaches the preset temperature, and control the heating device to operate at the determined heating power.

2. The liquid heating vessel according to claim 1, in, The controller determines the heating power by the following formula: Wherein, P is the heating power, m is the mass of the liquid, c is the specific heat capacity of the liquid, k is the unit temperature, t 1 is the current temperature, t 2 is the ambient temperature, α is the temperature reduction coefficient, and η is the thermal efficiency of the heating device.

3. The liquid heating vessel according to claim 2, in, k is 1℃.

4. The liquid heating vessel according to claim 1, in, The liquid volume sensor is a weighing sensor.

5. The liquid heating vessel according to claim 1, in, The heating device is arranged on the bottom side of the container body; and / or, The heating device is arranged on the outside of the container body and is thermally connected to the container body.

6. The liquid heating vessel according to claim 1, in, The container body comprises an inner liner and a heat-insulating layer arranged outside the inner liner. A waterproof and breathable membrane is arranged on the outer side of the thermal insulation layer to prevent the steam generated during the operation of the liquid heating container from entering the interior of the thermal insulation layer.

7. The liquid heating vessel according to claim 6, in, The insulation layer is connected end to end in the circumferential direction of the inner liner, and a first concave-convex structure is provided at the front end of the insulation layer, and a second concave-convex structure is provided at the rear end of the insulation layer. The first concave-convex structure and the second concave-convex structure are meshed to facilitate the insulation layer to be sleeved on the outside of the inner liner.

8. The liquid heating vessel according to claim 1, in, The liquid heating container further comprises an operation module, and the operation module is used to set the preset temperature of the liquid heating container.

9. The liquid heating vessel according to claim 8, in, The liquid heating container further comprises a display module, and the display module is used to display the preset temperature and / or the current temperature.

10. A liquid heating vessel according to any one of claims 1 to 9, in, The liquid heating container is an electric kettle or a thermos kettle.

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