Low-noise heating disc and electric kettle

Abstract

The low-noise heating disc comprises a stainless steel disc, an aluminum plate and a heating tube, a silencing area is arranged on the stainless steel disc, and a water ripple surface is integrally formed on the disc surface of the stainless steel disc in the silencing area through a metal plate; the bottom of the stainless steel plate is flat, the aluminum plate is attached to the bottom of the stainless steel plate face to face, and the heating pipe is welded to the bottom face of the aluminum plate. According to the electric kettle, the heating disc of the structure is adopted, the water ripple technology is used for silencing, when water is boiled, tumbling bubbles become small, so that sound generated during water boiling is reduced, in addition, the water ripple surface conducts heat in a three-dimensional mode, the high-efficiency heat conduction module is additionally arranged, resonance generated when the bubbles are fractured due to friction can be effectively reduced, noise is greatly reduced, and the electric kettle is suitable for popularization and application. And meanwhile, the water boiling speed can be increased, so that the method is obviously a method for making two purposes.

Description

Technical Field

[0001] The utility model relates to the field of heating plates, in particular to a low-noise heating plate and an electric kettle. Background Art

[0002] When using an existing electric kettle, the bottom of the kettle body, which is filled with water, is placed on a base for electrical coupling. The electric energy then heats the heating plate inside the kettle, heating the water. However, the heating plate currently has a flat surface. During the boiling process, bubbles on the heating plate will rupture due to friction, causing resonance. This resonance produces noise that affects the user experience. Furthermore, due to the flat surface of the heating plate, the heating area is small, resulting in low thermal efficiency and a long boiling time. Therefore, the applicant has provided a new technical solution to address the above-mentioned shortcomings by improving and refining the heating plate for consumers to choose and use. Summary of the Invention

[0003] The purpose of the utility model is to provide a low-noise heating plate and an electric kettle with simple and reasonable structure, convenient installation and stable structure.

[0004] A low-noise heating plate comprises a stainless steel plate, an aluminum plate welded to the bottom surface of the stainless steel plate, and a heating tube welded to the bottom surface of the aluminum plate. The stainless steel plate is provided with a silencer area, and the surface of the stainless steel plate is integrally formed with a water corrugated surface by sheet metal in the silencer area.

[0005] The purpose of the utility model can also be solved by the following technical measures:

[0006] As a more specific solution, the bottom of the stainless steel plate is flat, and the aluminum plates are connected to the bottom of the stainless steel plate in a face-to-face manner.

[0007] As a further solution, the surface of the stainless steel plate is provided with a plurality of concentric arc grooves of different diameters, the plurality of arc grooves are arranged at equal intervals, and a water ripple surface is formed by the height difference between the arc grooves and the plate surface.

[0008] As a further solution, the water ripple surface has an arc structure and is arranged close to the edge of the disk surface, and its vertical projection surface at least partially overlaps with the heating tube, and the water ripple surface forms a blank gap on the disk surface of the stainless steel disk, and the blank gap is arranged opposite to the opening between the two end ends of the heating tube.

[0009] As a further solution, the width of each circular arc groove is W, and 2mm≤W≤5mm; the maximum depth of each circular arc groove is H, and 0.3mm≤H≤1.5mm.

[0010] As a further solution, the water ripple surface encloses a central area on the surface of the stainless steel plate, and the radius of the central area is greater than or equal to the radial width of the water ripple surface.

[0011] As a further solution, the cross-section of the bottom of the arc groove is in the shape of an arc or a circular arc.

[0012] As a further solution, the number of the arc grooves is between 3 and 7.

[0013] As a further solution, the stainless steel plate includes a main plate surface, the water corrugated surface is arranged inside the main plate surface, and the circumferential edge of the main plate surface is formed into an inner convex edge and an outer groove by continuous bending. The inner convex edge is higher than the plate surface of the main plate surface, and the outer groove is arranged on the outside of the inner convex edge, and its groove bottom sinks to the outer periphery of the heating tube.

[0014] An electric kettle comprises the low-noise heating plate of the above structure.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model provides a low-noise heating plate and an electric kettle. The heating plate of this structure is used in this electric kettle to reduce noise by using water ripple technology. When boiling water, the rolling bubbles are made smaller, thereby reducing the noise generated when the water is boiled. In addition, the three-dimensional heat conduction of the water ripple surface, coupled with the high-efficiency heat conduction module, can effectively reduce the resonance generated when the bubbles are ruptured by friction, greatly reducing noise, and at the same time increasing the speed of boiling water. It is obviously a best of both worlds approach. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the exploded structure of the heating plate in the present invention.

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the arc groove in the utility model.

[0019] Figure 3 This is a schematic diagram of the front structure of the heating plate in the present invention.

[0020] Figure 4 This is a schematic diagram of the back structure of the heating plate in the present invention.

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the stainless steel plate in the present utility model.

[0022] Figure 6 This is a schematic structural diagram of another embodiment of the water corrugated surface of the utility model. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1 to 5 As shown, a low-noise heating plate comprises a stainless steel plate 1, an aluminum plate 2 welded to the bottom surface of the stainless steel plate 1, and a heating tube 3 welded to the bottom surface of the aluminum plate 2. The stainless steel plate 1 is provided with a silencer area, and the surface of the stainless steel plate 1 is integrally formed with a water-rippled surface 4 by sheet metal in the silencer area; the surface of the stainless steel plate 1 is concavely provided with a plurality of concentric circular arc grooves 5 of different diameters, the plurality of circular arc grooves 5 are arranged at equal intervals, and the water-rippled surface 4 is formed by the height difference between the circular arc grooves 5 and the plate surface.

[0025] This electric kettle uses a heating plate with this structure and uses water ripple technology for noise reduction. When boiling water, the rolling bubbles become smaller, thereby reducing the sound produced when the water is boiled. In addition, the 4-dimensional heat conduction of the water ripple surface, coupled with the high-efficiency heat conduction module, can effectively reduce the resonance generated by the friction and rupture of the bubbles, greatly reducing noise. At the same time, it can also increase the speed of boiling water. It is obviously a best of both worlds approach.

[0026] The bottom of the stainless steel plate 1 is flat, and the aluminum plate 2 is connected to the bottom of the stainless steel plate 1 face to face. When making the sheet metal, the stainless steel plate 1 is mainly thinned to form an arc groove 5 so that the bottom of the stainless steel plate 1 will not protrude. The flat bottom of the stainless steel plate 1 can ensure full contact with the aluminum plate 2, effectively improve the thermal conductivity and heating efficiency.

[0027] The water-rippled surface 4 is in an arc structure and is arranged close to the edge of the plate surface, and its vertical projection surface at least partially overlaps with the heating tube 3. In addition, the water-rippled surface 4 forms a blank gap 6 on the plate surface of the stainless steel plate 1, and the blank gap 6 is arranged opposite to the opening 7 between the two ends of the heating tube 3.

[0028] In this embodiment, the water ripple surface 4 is formed by the extension direction of multiple arc grooves 5 to form an arc structure and a gap 6. In more embodiments, such as Figure 6 As shown, the water ripple surface 4 can be formed by a plurality of radially extending straight grooves arranged along the arc direction.

[0029] The width of each arc groove 5 is W, and 2mm≤W≤5mm; in this embodiment, the width of the arc groove 5 is preferably 2.5mm;

[0030] The maximum depth of each arc groove 5 is H, and 0.3mm≤H≤1.5mm; in this embodiment, the maximum depth of the arc groove 5 is preferably 1mm, and the cross-section of the bottom of the arc groove 5 is arc-shaped or circular arc-shaped.

[0031] The water ripple surface 4 is provided with a central area 8 on the surface of the stainless steel plate 1. The radius of the central area 8 is greater than or equal to the radial width of the water ripple surface 4. Bubbles are mainly generated at the position of the plate surface corresponding to the heating tube 3. Therefore, the central area 8 reduces the number of arc grooves 5 processed on the plate surface, thereby improving production efficiency.

[0032] The number of the arc grooves 5 is between 3 and 7. In this embodiment, 5 arc grooves 5 are provided on the plate surface, so that the stainless steel plate 1 can be increased or decreased according to the width of the heating tube 3.

[0033] The stainless steel plate 1 includes a main plate surface 11, and the water corrugated surface 4 is arranged inside the main plate surface 11. The circumferential edge of the main plate surface 11 is formed into an inner convex edge 12 and an outer groove 13 by continuous bending. The inner convex edge 12 is higher than the plate surface of the main plate surface 11, and the outer groove 13 is arranged on the outside of the inner convex edge 12, and its groove bottom is sunk to the outer periphery of the heating tube 3.

[0034] An electric kettle comprises the low-noise heating plate of the above structure.

[0035] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A low-noise heating plate, comprising a stainless steel plate, an aluminum plate welded to the bottom of the stainless steel plate, and a heating tube welded to the bottom of the aluminum plate, characterized in that: The stainless steel plate is provided with a silencer area, and the surface of the stainless steel plate is integrally made into a water corrugated surface by sheet metal in the silencer area; the bottom of the stainless steel plate is flat, and the aluminum plate is face-to-face connected to the bottom of the stainless steel plate.

2. A low-noise heating plate according to claim 1, characterized in that: The surface of the stainless steel plate is concavely provided with a plurality of concentric circular arc grooves with different diameters. The plurality of circular arc grooves are arranged at equal intervals, and a water ripple surface is formed by the height difference between the circular arc grooves and the plate surface.

3. A low-noise heating plate according to claim 1, characterized in that: The water ripple surface has an arc structure and is arranged close to the edge of the disk surface, and its vertical projection surface at least partially overlaps with the heating tube. The water ripple surface forms a gap on the disk surface of the stainless steel disk, and the gap is arranged opposite to the opening between the two ends of the heating tube.

4. A low-noise heating plate according to claim 2, characterized in that: The width of each arc groove is W, and 2mm≤W≤5mm; the maximum depth of each arc groove is H, and 0.3mm≤H≤1.5mm.

5. A low-noise heating plate according to claim 2 or 3, characterized in that: The water ripple surface encloses a central area on the surface of the stainless steel plate, and the radius of the central area is greater than or equal to the radial width of the water ripple surface.

6. A low-noise heating plate according to claim 2, characterized in that: The cross-section of the bottom of the circular arc groove is in an arc shape or a circular arc shape.

7. A low-noise heating plate according to claim 2, characterized in that: The number of the arc grooves is between 3 and 7.

8. The low-noise heating plate according to claim 1, characterized in that: The stainless steel plate includes a main plate surface, the water corrugated surface is arranged inside the main plate surface, and the circumferential edge of the main plate surface is formed into an inner convex edge and an outer groove by continuous bending. The inner convex edge is higher than the plate surface of the main plate surface, and the outer groove is arranged on the outside of the inner convex edge, and its groove bottom is sunk to the outer periphery of the heating tube.

9. An electric kettle, characterized in that :Including the low-noise heating plate described in any one of claims 1-8.

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