High-energy-efficiency electric kettle

Abstract

The utility model discloses a high energy efficiency electric kettle, which relates to the technical field of kettles, and comprises a kettle body and a heating base connected with the kettle body, a heating body close to the bottom surface of the kettle body is arranged in the heating base, the heating body emits heat in a surface shape, and a thermal radiation heat conduction layer is arranged on one end surface of the heating body corresponding to the bottom surface of the kettle body. The thermal radiation heat conduction layer is a graphene coating coated on the upper end surface of the heating body; the synergistic effect of the planar heating body and the graphene coating remarkably improves the energy efficiency of the electric kettle, the heating body is close to the bottom face of the kettle body, it is ensured that heat can be transmitted more directly, in the heating process, transmission of heat to water in the kettle is accelerated through the combined effect of the planar heating body and the graphene coating, and the efficient heat transmission mechanism enables the energy efficiency of the electric kettle to be improved under the same power. Compared with a traditional electric kettle, the electric kettle has the advantages that heating time is shortened, and useless loss of electric energy in the heating process is reduced.

Description

Technical Field

[0001] This utility model relates to the field of kettle technology, specifically a high-efficiency electric kettle. Background Technology

[0002] In daily life, electric kettles are a widely used household appliance used to quickly and conveniently heat water to boiling, meeting people's various needs such as drinking hot water, making tea, and brewing coffee.

[0003] Traditional electric kettles have limitations in heating efficiency. Many kettles have suboptimal heating element designs, often using traditional resistance wires to transfer heat to the kettle body via conduction. This method of heat transfer is prone to heat loss. For example, if the heating element is not in close contact with the kettle body or if the heating element itself heats unevenly, heat cannot be effectively transferred to the water, resulting in longer heating times and increased energy consumption.

[0004] Furthermore, due to the heating method and structure of some electric kettles, the heating element may generate localized high temperatures during operation. This not only affects the lifespan of the heating element but may also lead to safety hazards due to localized overheating, such as causing a fire or damaging related components of the kettle. Moreover, if the heat cannot be evenly distributed at the bottom of the kettle during the heating process, it will also cause uneven water temperature inside the kettle, affecting the user experience.

[0005] With increasing demands for energy efficiency and product performance, the market urgently needs an electric kettle that can more efficiently convert electrical energy into heat energy while ensuring uniform and safe heating. This new type of electric kettle should have a more rational heating structure to reduce heat loss during transfer, improve heating efficiency, and simultaneously guarantee stable and reliable operation and a good user experience. Therefore, this invention aims to propose a high-efficiency electric kettle to solve the problems existing in the prior art. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] A high-efficiency electric kettle includes a kettle body and a heating base connected to it. The heating base has a heating element built into it, which is close to the bottom surface of the kettle body. The heating element heats in a planar manner, and a heat radiation and heat conduction layer is provided on one end surface of the heating element corresponding to the bottom surface of the kettle body.

[0008] As a further embodiment of this utility model: the thermal radiation conductive layer is a graphene coating applied to the upper surface of the heating element.

[0009] As a further embodiment of this utility model: the heating base has a built-in mounting bracket, and the lower end of the mounting bracket is connected to an elastic component so that the mounting bracket has a tendency to move up and down through the elastic component;

[0010] The heating element is supported by a mounting bracket, which, along with the elastic component, ensures that the heating element is in close contact with the bottom surface of the kettle.

[0011] As a further embodiment of this utility model: the mounting bracket is provided with an assembly slot, and the periphery of the heating element is supported on the edge of the assembly slot.

[0012] As a further embodiment of this utility model: the elastic component includes a support column fixed in the heating base and a spring located in the support column, the two ends of the spring abutting against the mounting frame and the support column respectively, and one side of the mounting frame has an abutting end corresponding to the spring.

[0013] As a further embodiment of this utility model: the heating base has a built-in coupler electrically connected to the heating element.

[0014] As a further embodiment of this utility model: the heating element includes a main body and a protrusion extending along one side of the main body, the main body is in contact with the bottom surface of the kettle body, and a thermostat is connected to the lower end of the protrusion.

[0015] As a further embodiment of this utility model: the heating element is a thick-film heating element.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1) The synergistic effect of the planar heating element and the graphene coating significantly improves the energy efficiency of the electric kettle. Furthermore, the heating element being close to the bottom of the kettle ensures that heat can be transferred more directly. During the heating process, the two work together to accelerate the transfer of heat to the water inside the kettle. This efficient heat transfer mechanism allows water to reach the boiling point faster under the same power. Compared with traditional electric kettles, shortening the heating time means reducing the useless loss of electrical energy during the heating process.

[0018] 2) The planar heating element lays the foundation for uniform heating, avoiding localized high temperatures as in traditional heating methods. The high thermal conductivity of the graphene coating further ensures the uniform distribution of heat at the bottom of the kettle, effectively reducing the thermal stress on the heating element, extending its service life, and reducing the possibility of aging or damage to surrounding insulation materials due to localized high temperatures. This improves the overall safety of the electric kettle and protects the user's life and property during use.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0024] Figure 4 This is a schematic diagram of the structure of the heating element and the mounting bracket in this utility model;

[0025] Figure 5 This is a schematic diagram of the heating element from one perspective in one embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the heating element from another perspective in one embodiment of this utility model.

[0027] The reference numerals and names in the figure are as follows:

[0028] 1. Kettle body; 2. Heating base; 3. Heating element; 4. Thermal radiation conductive layer / graphene coating; 5. Mounting bracket; 6. Elastic component; 7. Assembly slot; 8. Support; 9. Spring; 10. Coupler; 11. Main body; 12. Protrusion; 13. Thermostat; 14. Abutment end. 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] Please see Figure 1-6In this embodiment of the present invention, a high-efficiency electric kettle includes a kettle body 1 and a heating base 2 connected thereto. The heating base 2 has a heating element 3 that is close to the bottom surface of the kettle body 1. The heating element 3 heats in a planar manner, and a heat radiation heat conduction layer 4 is provided on one end surface corresponding to the bottom surface of the kettle body 1.

[0031] The thermal radiation conductive layer 4 is a graphene coating 4 applied to the upper surface of the heating element 3.

[0032] In this utility model, the design of the planar heating element 3 is based on the basic principle of heat conduction. By increasing the contact area with the bottom surface of the kettle body 1, the heating efficiency is improved. Traditional electric kettle heating elements 3 are mostly point or line-shaped, and the heat is concentrated in a local area, which easily causes uneven heat distribution. The planar heating element 3 can evenly diffuse the heat over a larger area, making the bottom of the kettle body 1 more evenly heated. At the same time, the planar heating element 3 is designed to be close to the bottom surface of the kettle body 1 in order to minimize the air gap between them. Air is a poor conductor of heat. According to the principle of heat conduction, reducing the air layer can reduce thermal resistance. This close-fitting design, combined with the increased contact area of ​​the planar heating element 3, can transfer heat to the kettle body 1 more efficiently.

[0033] The graphene coating 4, as a thermal radiation conductive layer 4, has unique physical properties. From the perspective of thermal radiation, graphene has a high emissivity, which enables it to efficiently transfer heat to the kettle body 1 in the form of thermal radiation when the heating element 3 is heating. Unlike traditional heat conduction methods, thermal radiation does not rely on a medium, which can reduce heat loss caused by the thermal resistance of the medium. In terms of thermal conduction, graphene is one of the materials with extremely high thermal conductivity. It can form an efficient heat conduction channel on the surface of the heating element 3, quickly conduct the heat generated by the heating element 3 inside it, and transfer it to the kettle body 1 through thermal radiation. The heat generated by the heating element 3 is rapidly conducted through the vibration of carbon atoms and the movement of free electrons in the graphene coating 4, so that the heat can be quickly and evenly distributed at the bottom of the kettle body 1, further optimizing the heating effect.

[0034] In summary, the synergistic effect of the planar heating element 3 and the graphene coating 4 significantly improves the energy efficiency of the electric kettle. Furthermore, the fact that the heating element 3 is close to the bottom surface of the kettle body 1 ensures that heat can be transferred more directly. During the heating process, the two work together to accelerate the transfer of heat to the water inside the kettle. This efficient heat transfer mechanism allows water to reach the boiling point faster under the same power. Compared with traditional electric kettles, shortening the heating time means reducing the useless loss of electrical energy during the heating process.

[0035] The planar heating element 3 lays the foundation for uniform heating, avoiding localized high-temperature points as in traditional heating methods. The high thermal conductivity of the graphene coating 4 further ensures the uniform distribution of heat at the bottom of the kettle body 1, thereby effectively reducing the thermal stress on the heating element 3, extending its service life, and reducing the possibility of aging or damage to surrounding insulation materials due to localized high temperatures. This improves the overall safety of the electric kettle and protects the life and property safety of users during use.

[0036] In this embodiment of the present invention, the heating base 2 has a built-in mounting bracket 5, and the lower end of the mounting bracket 5 is connected to an elastic component 6 so that the mounting bracket 5 has a tendency to move up and down through the elastic component 6.

[0037] The heating element 3 is supported by the mounting bracket 5, so that the heating element 3 is in close contact with the bottom surface of the kettle body 1 through the mounting bracket 5 and the elastic component 6.

[0038] The mounting bracket 5 serves as a support structure for the heating element 3, providing a stable mounting position for the heating element 3. The elastic component 6 connected to its lower end utilizes the properties of elastic materials, such as Hooke's law for springs 9. Within a certain elastic limit, it deforms under external force and returns to its original shape after the external force disappears. This design gives the mounting bracket 5 a tendency to move up and down. The heating element 3 is supported on the mounting bracket 5. When the electric kettle is subjected to external impact, shaking, or slight unevenness on the bottom surface of the kettle body 1 during placement or use, the elastic component 6 can adjust the height of the mounting bracket 5 through its own elastic deformation, thereby ensuring that the heating element 3 can always be in close contact with the bottom surface of the kettle body 1. From the perspective of heat transfer, close contact helps to reduce thermal resistance. According to the heat conduction formula, heat flow is inversely proportional to contact thermal resistance. Close contact allows heat to be transferred more efficiently from the heating element 3 to the kettle body 1.

[0039] In this embodiment of the present invention, the mounting bracket 5 is provided with an assembly slot 7, and the periphery of the heating element 3 is supported on the edge of the assembly slot 7.

[0040] The mounting slot 7 on the mounting bracket 5 provides precise positioning for the heating element 3. The mounting slot 7 works in conjunction with the elastic component 6. The elastic component 6 provides vertical elastic support, allowing the heating element 3 to fit tightly against the bottom surface of the kettle body 1. The mounting slot 7 positions and constrains the heating element 3 in the horizontal direction. Together, they ensure the stability of the heating element 3 in three-dimensional space, ensuring that the relative position of the heating element 3 and the bottom surface of the kettle body 1 remains unchanged under various usage conditions, thereby ensuring the stability of heat transfer.

[0041] In this embodiment of the present invention, the elastic component 6 includes a support column 8 fixed in the heating base 2 and a spring 9 located in the support column 8. The two ends of the spring 9 abut against the mounting frame 5 and the support column 8 respectively, and one side of the mounting frame 5 has an abutment end 14 corresponding to the spring 9.

[0042] The support column 8 is fixed inside the heating base 2, providing a stable base structure for the entire elastic component 6. The spring 9 is located inside the support column 8, with its two ends abutting against the mounting bracket 5 and the support column 8 respectively. According to Hooke's Law, the spring 9 will generate an elastic force proportional to the deformation when it is compressed or stretched by an external force. In this design, when the electric kettle is subjected to an external force, such as being placed on an uneven surface, being subjected to a slight collision, or when the kettle body 1 changes due to thermal expansion and contraction, the mounting bracket 5 will apply pressure or tension to the spring 9. The spring 9 will generate a corresponding reaction force through its own elastic deformation to maintain close contact between the heating element 3 and the bottom surface of the kettle body 1.

[0043] In this embodiment of the utility model, the heating base 2 has a built-in coupler 10 electrically connected to the heating element 3.

[0044] The coupler 10 serves as the electrical connection interface between the heating element 3 and the external power source within the heating base 2. It achieves power transmission based on the principles of electromagnetic induction or direct contact conductivity. For the electromagnetic induction coupler 10, when the alternating current of the external power source passes through the primary coil, an induced electromotive force is generated in the secondary coil (located at the connection between the coupler 10 and the heating element 3), thereby supplying power to the heating element 3. For the direct contact coupler 10, the current is conducted to the heating element 3 through a reliable connection of metal contacts.

[0045] In one embodiment of this utility model, the heating element 3 includes a main body 11 and a protrusion 12 extending along one side of the main body 11. The main body 11 is in contact with the bottom surface of the kettle body 1, and the lower end of the protrusion 12 is connected to a thermostat 13.

[0046] The main body 11 of the heating element 3 is in contact with the bottom surface of the kettle body 1 to achieve efficient heat transfer. The design area and shape of the main body 11 are adapted to the bottom surface of the kettle body 1. According to the principle of heat conduction, the large-area close contact can reduce thermal resistance, allowing heat to be transferred quickly and evenly from the heating element 3 to the kettle body 1, thereby heating the water in the kettle. The connection principle between the protrusion 12 and the thermostat 13: The protrusion 12 extends along one side of the main body 11, providing a suitable position for the installation of the thermostat 13. By connecting to the lower end of the protrusion 12, the thermostat 13 can be closer to the heat source to accurately sense temperature changes. When the heating element 3 is working, heat is conducted to the protrusion 12 and then to the thermostat 13. This connection method utilizes the directionality of heat conduction, enabling the thermostat 13 to obtain the temperature information of the heating element 3 in a timely manner, thereby preventing the heating element 3 from continuously heating, causing the water temperature to be too high, and thus causing a series of safety problems.

[0047] In this embodiment of the present invention, the heating element 3 is a thick film heating element 3.

[0048] The thick-film heating element 3 is a heating element made by printing or other processes onto a specific substrate. It is usually composed of a multi-layer structure, including heating resistance paste, insulating dielectric paste, and conductive paste. These pastes are sintered at high temperature to form a tight whole. The heating resistance layer is the key part for generating heat. When current passes through, the resistance layer generates heat. The thick-film heating element 3 is planar. This large-area heating structure can fully contact the bottom surface of the kettle body 1. The heat it generates is mainly transferred to the kettle body 1 through thermal conduction. Because it is closely attached to the bottom surface of the kettle body 1 and heats up evenly, the heat can be efficiently transferred from the thick-film heating element 3 to the kettle body 1 and then to the water.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A high-efficiency electric kettle, characterized in that, It includes a kettle body and a connected heating base. The heating base has a built-in heating element that is close to the bottom surface of the kettle body. The heating element heats in a planar manner, and a heat radiation and heat conduction layer is provided on one end surface corresponding to the bottom surface of the kettle body. The heating base has a built-in mounting bracket, and the lower end of the mounting bracket is connected to an elastic component so that the mounting bracket has a tendency to move up and down through the elastic component. The heating element is supported by a mounting bracket, which, along with the elastic component, ensures that the heating element is in close contact with the bottom surface of the kettle.

2. The high-efficiency electric kettle according to claim 1, characterized in that, The thermal radiation conductive layer is a graphene coating applied to the upper surface of the heating element.

3. A high-efficiency electric kettle according to claim 1, characterized in that, The mounting bracket has an assembly slot, and the periphery of the heating element is supported on the edge of the assembly slot.

4. A high-efficiency electric kettle according to claim 1, characterized in that, The elastic component includes a support column fixed in the heating base and a spring located in the support column. The two ends of the spring abut against the mounting frame and the support column, respectively. One side of the mounting frame has an abutment end corresponding to the spring.

5. A high-efficiency electric kettle according to claim 1, characterized in that, The heating base has a built-in coupler electrically connected to the heating element.

6. A high-efficiency electric kettle according to any one of claims 1-5, characterized in that, The heating element includes a main body and a protrusion extending along one side of the main body. The main body is in contact with the bottom of the kettle body, and a thermostat is connected to the lower end of the protrusion.

7. A high-efficiency electric kettle according to any one of claims 1-5, characterized in that, The heating element is a thick-film heating element.

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