A new type of electric kettle with a heating structure

Abstract

This utility model discloses a novel heating structure for an electric kettle, comprising a kettle body, a heating element, a mica sheet, and a bottom cover. The kettle body has a water cavity, and a heating plate is located at the bottom of the kettle body. The heating plate has studs. The heating element is a rare-earth thick-film heating layer. The mica sheet is located on the lower wall of the heating element and is attached to its bottom wall. A water-injection conductive module is located on the lower wall of the mica sheet. The water-injection conductive module includes a coupler composed of multiple annular partitions. The coupler has a water-injection channel in its center, and conductive electrodes are located on the outer periphery of the water-injection channel. The conductive electrodes are electrically connected to the rare-earth thick-film heating layer. The heating element and the mica sheet have through holes for the studs to pass through. The studs are connected to the coupler and the bottom cover, respectively. The rare-earth thick-film heating layer has a larger heating area and is thinner than existing curved heating wires, allowing for more uniform heating of the kettle's surface and preventing the generation of unevenly heated water.

Description

Technical Field

[0001] This utility model relates to the field of kettles, and in particular to an electric kettle with a novel heating structure. Background Technology

[0002] The working principle of a kettle is that the steam generated when water boils deforms the bimetallic strip of the steam-sensing element. This deformation, through a lever principle, pushes the power switch to cut off the power. This power-off is not self-resetting, so the kettle will not automatically reheat after the power is cut off.

[0003] Currently, electric kettles still rely on thin heating wires to generate heat. However, these thin heating wires are prone to breakage and malfunction if overloaded. Furthermore, the heating area of ​​the heating wires is limited, making it difficult to achieve uniform heating. This results in water that is neither hot nor cold, and the boiling process is relatively slow. Utility Model Content

[0004] The main purpose of this invention is to propose a new type of electric kettle with a novel heating structure, which aims to improve the existing heating method, increase heating efficiency, and improve the service life and stability of boiling water.

[0005] To achieve the above objectives, this utility model proposes a novel electric kettle with a heating structure, comprising:

[0006] The kettle body has a water cavity, and a heating plate is provided at the bottom of the kettle body. The heating plate is provided with studs.

[0007] Heating element, wherein the heating element is a rare earth thick film heating layer;

[0008] Mica sheet, wherein the mica sheet is disposed on the lower wall of the heating element and is attached to its bottom wall;

[0009] The water-injection conductive module is located on the lower wall of the mica sheet. The water-injection conductive module includes a coupler composed of multiple annular partitions. A water injection channel is provided in the middle of the coupler, and a conductive electrode is provided on the outer periphery of the water injection channel. The conductive electrode is electrically connected to the rare earth thick film heating layer.

[0010] Bottom cover;

[0011] The heating element and mica sheet are provided with through holes for studs to pass through, and the studs are respectively connected to the coupler and the bottom cover.

[0012] This application has the following advantages:

[0013] 1. Mica sheets are placed beneath the rare-earth thick-film heating layer to insulate against extreme heat and prevent the coupler from failing. This serves both as thermal insulation and heat preservation (conducting the generated heat upwards).

[0014] Rare earth thick film heating layer is a high-power heating plate with advantages such as low resistance, high power, self-insulation, and safety and reliability; its characteristics include fast heating speed, such as boiling 200ml of water in only 10 seconds; high power density; fast response speed; and long service life.

[0015] When current passes through the rare earth heating layer, the resistance generates heat, which is directly conducted to the heated plate.

[0016] 2. The rare earth thick film heating layer has a larger heating area and is thinner than the existing curved heating wires, which allows the kettle to be heated evenly, thus avoiding the generation of uneven water and shortening the boiling time; it also avoids defects such as wire breakage and malfunction due to overload.

[0017] This extends the lifespan of the electric kettle;

[0018] 3. Studs are used to install and fix the coupler and the bottom cover, making the installation simpler and more stable, and reducing assembly costs;

[0019] 4. Reduced the air gap between the heating wire and the heating plate. Attached Figure Description

[0020] Figure 1 This is an exploded view of the present invention;

[0021] Figure 2 This is a first sectional view of the present invention;

[0022] Figure 3 This is the second sectional view of the present invention.

[0023] In the picture,

[0024] 1 represents the kettle body, 11 represents the heating plate, and 12 represents the stud.

[0025] 21 is a heating element, and 22 is a mica sheet.

[0026] 3 is the conductive electrode, 31 is the live wire (L terminal), and 32 is the neutral wire (N terminal).

[0027] 4 is the coupler, 40 is the water inlet channel, 41 is the water outlet, 42 is the hose, and 43 is the check valve.

[0028] 5 is a via.

[0029] 6 represents a notch, and 60 represents a temperature sensor.

[0030] 7 is the positioning groove, and 70 is the support frame.

[0031] 8 represents the bottom cover. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0033] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] like Figures 1 to 3 As shown, a novel electric kettle with a heating structure includes,

[0036] The kettle body 1 is provided with a water cavity, and the bottom of the kettle body 1 is provided with a heating plate 11, and the heating plate 11 is provided with a stud 12;

[0037] Heating element 21, wherein the heating element 21 is a rare earth thick film heating layer;

[0038] Mica sheet 22, wherein the mica sheet 22 is disposed on the lower wall of the heating element 21 and is attached to its bottom wall;

[0039] The water-injection conductive module is located on the lower wall of the mica sheet 22. The water-injection conductive module includes a coupler 4 composed of multiple annular partitions. A water injection channel 40 is provided in the middle of the coupler 4, and a conductive electrode 3 is provided on the outer periphery of the water injection channel 40. The conductive electrode 3 is electrically connected to the rare earth thick film heating layer.

[0040] Bottom cover 8;

[0041] The heating element 21 and the mica sheet 22 are provided with through holes 5 for the studs 12 to pass through, and the studs 12 are respectively connected to the coupler 4 and the bottom cover 8.

[0042] This application has the following advantages:

[0043] 1. A mica sheet 22 is placed beneath the rare earth thick film heating layer to insulate against extreme heat and prevent the coupler 4 from failing. This serves both as thermal insulation and heat preservation (conducting the heat upwards).

[0044] Rare earth thick film heating layer is a high-power heating plate with advantages such as low resistance, high power, self-insulation, and safety and reliability; its characteristics include fast heating speed, such as boiling 200ml of water in only 10 seconds; high power density; fast response speed; and long service life.

[0045] When the current passes through the rare earth heating layer, the resistance generates heat, which is directly conducted to the heating plate 11;

[0046] 2. The rare earth thick film heating layer has a larger heating area and is thinner than the existing curved heating wires, which allows the kettle to be heated evenly, thus avoiding the generation of uneven water and shortening the boiling time; it also avoids defects such as wire breakage and malfunction due to overload.

[0047] This extends the lifespan of the electric kettle;

[0048] 3. Studs 12 are used to install and fix the coupler 4 and the bottom cover 8, making the installation simpler and more stable, and reducing the assembly cost.

[0049] Specifically, the stud 12 is welded and fixed to the bottom wall of the heating plate 11, wherein the welding is carried out by laser welding or other welding methods, thereby ensuring that there are no large protruding structures inside the water cavity, which facilitates cleaning and smoothing.

[0050] In this embodiment of the invention, the rare earth thick film heating layer is provided with a live wire L end 31 and a neutral wire N end 32 on both sides.

[0051] The live wire L end 31 and the neutral wire N end 32 are respectively fixed to the two conductive electrodes 3 of the coupler 4.

[0052] Specifically, the rare earth thick film heating layer is provided with a printed micron-level resistive film layer. The micron-level resistive film layer is arranged in a curved and tortuous shape on the sheet, that is, the carrier is the sheet. Therefore, the gap between adjacent parts will be smaller, which can make the temperature of the heating plate 11 lower.

[0053] In this embodiment of the present invention, the bottom wall of the heating plate 11 is recessed with a positioning groove 7, which is used to install the temperature sensor 60. The recessed structure can ensure the accurate temperature measurement of the temperature sensor 60 and reduce the problem of overheating.

[0054] Specifically, the rare earth thick film heating layer has a notch 6 at the position of the temperature sensor 60, thereby avoiding the influence of the temperature of the rare earth thick film heating layer on the detected temperature.

[0055] In this embodiment of the utility model, the coupler 4 is provided with a support frame 70, and the lower part of the temperature sensor 60 is mounted on the support frame 70. That is, the coupler 4 is fixed by the stud 12, and the temperature sensor 60 is fixed by the support frame 70.

[0056] Specifically, the support frame 70 is provided with internal threads, and the temperature sensor 60 is provided with external threads, which facilitates installation and allows for easy adjustment of the tightness of the fit.

[0057] In this embodiment of the utility model, the water injection channel 40 is a rigid pipe, the rigid pipe is connected to a flexible hose 42, the flexible hose 42 is located on the handle of the kettle body 1, and the upper end of the handle is provided with a water outlet 41 that communicates with the water cavity.

[0058] Specifically, the water injection channel 40 is equipped with a one-way valve 43.

[0059] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A novel electric kettle with a heating structure, characterized in that, include, The kettle body has a water cavity, and a heating plate is provided at the bottom of the kettle body. The heating plate is provided with studs. Heating element, wherein the heating element is a rare earth thick film heating layer; Mica sheet, wherein the mica sheet is disposed on the lower wall of the heating element and is attached to its bottom wall; The water-injection conductive module is located on the lower wall of the mica sheet. The water-injection conductive module includes a coupler composed of multiple annular partitions. A water injection channel is provided in the middle of the coupler, and a conductive electrode is provided on the outer periphery of the water injection channel. The conductive electrode is electrically connected to the rare earth thick film heating layer. Bottom cover; The heating element and mica sheet are provided with through holes for studs to pass through, and the studs are respectively connected to the coupler and the bottom cover.

2. The electric kettle with the novel heating structure as described in claim 1, characterized in that: The stud is welded and fixed to the bottom wall of the heating plate.

3. The electric kettle with the novel heating structure as described in claim 1, characterized in that: The rare earth thick film heating layer is provided with a live wire (L terminal) and a neutral wire (N terminal) on both sides. The live wire (L) and neutral wire (N) are respectively fixed to the two conductive electrodes of the coupler.

4. The electric kettle with the novel heating structure as described in claim 1, characterized in that: The rare earth thick film heating layer has a printed micron-level resistive film layer, which is arranged on the sheet in a curved and tortuous manner.

5. The electric kettle with the novel heating structure as described in claim 1, characterized in that: The bottom wall of the heating plate is recessed with a positioning groove, which is used to install a temperature sensor.

6. The electric kettle with the novel heating structure as described in claim 1, characterized in that: The rare earth thick film heating layer has a notch at the location of the temperature sensor.

7. The electric kettle with the novel heating structure as described in claim 6, characterized in that: The coupler is provided with a support frame, and the lower part of the temperature sensor is mounted on the support frame.

8. The electric kettle with the novel heating structure as described in claim 7, characterized in that: The support frame has internal threads, and the temperature sensor has external threads.

9. The electric kettle with the novel heating structure as described in claim 1, characterized in that: The water inlet channel is a rigid pipe, which is connected to a flexible hose. The flexible hose is located on the handle of the kettle body, and the upper end of the handle has a water outlet that connects to the water chamber.

10. The electric kettle with the novel heating structure as described in claim 9, characterized in that: The water injection channel is equipped with a one-way valve.

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