Novel heating device and household appliance

Abstract

The utility model provides a novel heating device and a household electrical appliance, and relates to the technical field of electrical appliance heating, and the novel heating device comprises a cover plate which is provided with a continuous and partially-bent protrusion; the heat conducting plate is installed on the side, back to the protrusion, of the cover plate, a cavity allowing fluid to flow from one end to the other end is defined by the heat conducting plate and an inner cavity of the protrusion, and through holes communicating with the cavity are formed in the two ends of the protrusion correspondingly; the heating piece is mounted on one side, back to the cavity, of the heat conducting plate; the cover plate is attached to the heat conduction plate, the cavity for water flowing is defined between the protrusions on the cover plate and the heat conduction plate, and the heating piece is attached to the heat conduction plate, so that the water in the cavity can be directly heated through the heat conduction plate, the whole shell does not need to be heated, heat loss is reduced, and the heat utilization rate of the heating device is greatly increased; meanwhile, the processing mode between the cover plate and the heat conducting plate is simpler, the material loss and the processing procedures are reduced, and the input cost required by the production of the heating device is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating, in particular to a novel heating device and a household appliance. Background Art

[0002] Heating devices are usually electric heating tubes or heating plates. An electric heating tube is a device that uses electric energy to generate heat. When an electric current passes through the electric heating tube, heat will be generated to heat water or liquid. These heating devices can usually be used in electrical equipment such as steam irons, electric irons, steam mops, steam wallpaper pasting machines, dishwashers, and washing machines to heat water bodies or generate steam for use.

[0003] At present, people's requirements for drinking water have increased, and the selection of materials in contact with drinking water is particularly important. When choosing materials for heating drinking water, stainless steel is usually considered a safer and more reliable choice. However, when stainless steel is used as a channel for water flow, its thermal conductivity is relatively low, approximately in the range of 10 - 30 W / (m·K), so in the design of heating devices, a heat conducting plate is usually attached to the outer wall of the shell with an internal pipeline or water cavity. The heat generated by the heating element is transferred to the shell through the heat conducting plate, and the water body in the shell is heated. When drinking water is not needed, heat is transferred to the shell through the heat conducting plate, and the heat is easily dissipated after the shell is heated, increasing the loss of water body heating and greatly increasing the cost required for the use of the heating device. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model defines a cavity for water body flow between the protrusion on the cover plate and the heat conducting plate, and the heating element is attached to the heat conducting plate to heat the water body. The specific technical solutions are as follows:

[0005] A novel heating device includes a cover plate provided with a continuous and partially curved protrusion; a heat conducting plate installed on the side of the cover plate opposite to the protrusion, and defining a cavity for fluid to flow from one end to the other with the inner cavity of the protrusion. Through holes communicating with the cavity are opened at both ends of the protrusion; and a heating element installed on the side of the heat conducting plate opposite to the cavity.

[0006] In one embodiment, both the cover plate and the heat conducting plate are made of metal hardware.

[0007] In one embodiment, the cover plate and the heat conducting plate are made of aluminum or aluminum alloy, and the heating element is made of aluminum alloy.

[0008] In one embodiment, the shape of the heating element is S-shaped, U-shaped, C-shaped or Z-shaped.

[0009] In one embodiment, a water inlet / outlet part is installed in the through hole, and the water inlet / outlet part is used to inject or discharge the fluid in the cavity.

[0010] In one embodiment, the water inlet part includes a water nozzle welded at the through hole or a soft rubber part clamped in the through hole.

[0011] A household appliance is provided with the above-mentioned novel heating device.

[0012] In one embodiment, the household appliance is any one of a clothes steamer, an electric iron, a steam mop, a steam wallpaper pasting machine, a dishwasher, and a washing machine.

[0013] As can be seen from the above technical solutions, the present utility model has the following beneficial effects:

[0014] In the present utility model, through the fitting of the cover plate and the heat conduction plate, a chamber for water body flow is defined between the protrusion on the cover plate and the heat conduction plate. The heating element is attached to the heat conduction plate, and thus the water body in the chamber can be directly heated through the heat conduction plate without heating the whole housing, reducing heat loss and greatly improving the heat utilization rate of the heating device.

[0015] The processing method between the cover plate and the heat conduction plate is simpler, reducing material loss and processing procedures, and greatly reducing the cost required for the production of the heating device. By selecting aluminum or aluminum alloy as the materials of the cover plate and the heat conduction plate, the heating rate of the water body in the chamber can be further increased, the processing cost can be reduced, and at the same time, rapid heating of the water body can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded structural schematic diagram of the present utility model;

[0017] Figure 2 is a top-down structural schematic diagram of the present utility model;

[0018] Figure 3 is the present utility model Figure 3 in the sectional structural schematic diagram of A-A;

[0019] Figure 4 is the sectional structural schematic diagram of the present utility model.

[0020] In the figure: 1, cover plate; 11, protrusion; 12, extension part; 13, perforation; 14, bending part; 15, through hole; 2, heat conduction plate; 3, heating element; 4, water nozzle; 5, soft rubber part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Before describing the technical solutions of the embodiments of the present utility model in detail, the nouns and terms involved will be explained. In this specification, components with the same name or the same reference numeral represent similar or the same structures, and are for illustrative purposes only.

[0022] As Figure 1 and Figure 2 shown, a new type of heating device includes a cover plate 1, which is provided with a continuous and partially curved protrusion 11. The four corners of the cover plate 1 extend outwards to form extension parts 12, and through holes 13 for installation are provided on the extension parts 12; a heat conducting plate 2, which is installed on the side of the cover plate 1 opposite to the protrusion 11, and defines a chamber with the inner cavity of the protrusion 11 for a fluid to flow from one end to the other end. Through holes 15 communicating with the chamber are provided at both ends of the protrusion 11; and a heating element 3, which is installed on the side of the heat conducting plate 2 opposite to the chamber. Among them, the protrusion 11 has a bent section, preferably has a bent section and a straight section. The combination of the straight section and the bent section can increase the length of the protrusion 11 located on the cover plate 1. Preferably, it has a serpentine shape, which can increase the travel of the water flow. The extension parts 12 extend outwards from the four corners of the cover plate 1, and through holes 13 are provided on the extension parts 12. The through holes 13 facilitate the installation with electrical appliances, improving the convenience of installation. There is no need to weld brackets to the electrical appliances again, saving the installation steps and reducing the installation space, and saving the cost input required for processing; the water in the chamber is directly heated by the heat conducting plate 2, and at the same time, the processing method between the cover plate 1 and the heat conducting plate 2 is simpler, reducing material loss and processing procedures, and greatly reducing the cost input required for the production of the heating device.

[0023] Gas, such as water vapor or air, can be introduced into the chamber, or liquid, such as water, can also be introduced. In this application, water is introduced. Cold water is injected into one end through hole 15 and discharged from the other end through hole 15. At the same time, the heating element 3 generates heat. After the heat conducting plate 2 is heated, it heats the cold water in the chamber. The heat conducting plate 2 makes the cold water evenly heated in the chamber. The cold water is gradually heated and the hot water or steam formed by heating the cold water is discharged from the through hole 15 for use.

[0024] As Figures 1-3 shown, the edge of the cover plate 1 is folded and extended to the side of the heat conducting plate 2 to form a bending part 14 located between two adjacent extension parts 12. Among them, the bending part 14 is perpendicular to the plane of the cover plate 1. The bending part 14 limits the periphery of the heat conducting plate 2 to prevent the heat conducting plate 2 from shifting when welded to the cover plate 1. The bending part 14 is located between two adjacent extension parts 12. The bending part 14 is folded on the side of the cover plate 1, causing the cover plate 1 to form a depression at the bending part 14. When the extension part 12 is installed with an electrical appliance, the depressed part of the cover plate 1 can provide an installation space for the electrical appliance, and at the same time, the bending part 14 can separate the heat conducting plate 2 from the electrical appliance housing.

[0025] As Figure 1 and Figure 3As shown, the height value of the bending portion 14 is 2 - 20 mm, preferably 4 - 10 mm, which can be selected according to the thickness of the heat conducting plate 2. The height of the bending portion 14 can completely cover the thickness of the heat conducting plate 2 to play a separating role. In this application, according to the thickness of the heating element 3 and the heat conducting plate 2, a range of 4 - 10 mm is adopted to ensure that the bending portion 14 can completely cover the side of the heat conducting plate 2, and the part exceeding the heat conducting plate 2 can separate the heating element 3 from the installation part of the electrical appliance.

[0026] Both the cover plate 1 and the heat conducting plate 2 are made of hardware materials. The cover plate 1 and the heat conducting plate 2 are made of aluminum or aluminum alloy, and the heating element 3 is made of aluminum alloy to improve the heat conduction performance. The shape of the heating element 3 is S-shaped, U-shaped, C-shaped or Z-shaped, which can increase the contact area between the heating element 3 and the heat conducting plate 2 and improve the heat conduction effect.

[0027] As Figure 1 、 Figure 2 and Figure 4 shown, through holes 15 are provided at both ends of the protrusion 11. The water inlet and outlet parts are installed in the through holes 15. The water inlet and outlet parts are used to inject or discharge the fluid in the chamber. The water inlet and outlet parts can be a water nozzle 4 or a soft rubber part 5. Among them, if a water nozzle 4 is adopted, the water nozzle 4 is welded to the through hole 15, and then it can be connected to an external hose through the water nozzle 4. The water body flows into the chamber from one end of the water nozzle 4 and flows out from the other end of the water nozzle 4. The soft rubber part 5 is preferably a sealing ring. The sealing ring is in an I shape, and its two ends are respectively located outside the chamber and the through hole 15. The elbow extends into the sealing ring and is connected to the hose to replace the water nozzle 4. The soft rubber part 5 can also be formed by applying glue. The glue is coated around the through hole 15 and pressed by a mold. After the glue dries and forms, it can be installed in it by squeezing the elbow to achieve the way of replacing the water nozzle 4. During the flow of the water body in the chamber, the heat conducting plate 2 transfers the heat of the heating element 3 to the water body in the chamber to heat the water body evenly, so that the heated water body or steam flows out from the other end of the water nozzle 4.

[0028] One of the extension parts 12 is provided with a grounding hole for convenient grounding.

[0029] A household electrical appliance is installed with the above-mentioned new heating device. The electrical appliance can be any one of a clothes steamer, an electric iron, a steam mop, a steam wallpaper pasting machine, a dishwasher and a washing machine. Among them, in the above-mentioned household electrical appliances, the new heating device is placed in the shell of the household electrical appliance and installed with the shell through the extension part 12 and the through hole 13, which simplifies the installation steps. The hot water or steam required by the household electrical appliance is provided by the new heating device.

[0030] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A novel heating device, characterized in that, Comprising: A cover plate (1) provided with a continuous and partially curved protrusion (11); A heat conducting plate (2) installed on the side of the cover plate (1) opposite to the protrusion (11), and defining a chamber with the inner cavity of the protrusion (11) for fluid to flow from one end to the other end, and through holes (15) communicating with the chamber are provided at both ends of the protrusion (11); and A heating element (3) installed on the side of the heat conducting plate (2) opposite to the chamber.

2. The novel heating device according to claim 1, wherein, Both the cover plate (1) and the heat conducting plate (2) are made of hardware materials.

3. The novel heating device according to claim 2, characterized in that, The cover plate (1) and the heat conducting plate (2) are made of aluminum or aluminum alloy, and the heating element (3) is made of aluminum alloy.

4. The novel heating device according to claim 1, characterized in that The shape of the heating element (3) is S-shaped, U-shaped, C-shaped or Z-shaped.

5. The novel heating device according to claim 1, characterized in that, A water inlet / outlet part is installed at the through hole (15), and the water inlet / outlet part is used for injecting or discharging the fluid in the chamber.

6. The novel heating device according to claim 5, wherein The water inlet / outlet part includes a water nozzle (4) welded at the through hole (15) or a soft rubber part (5) clamped at the through hole (15).

7. A household appliance, characterized in that, This household appliance is installed with the novel heating device as described in any one of claims 1-6.

8. The household appliance according to claim 7, characterized in that, This household appliance is any one of a clothes iron, an electric iron, a steam mop, a steam wallpaper pasting machine, a dishwasher and a washing machine.

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