Heating device and household appliance

Abstract

The utility model provides a heating device and a household appliance, and relates to the technical field of electric appliance heating, the heating device comprises a cover body, the cover body is provided with a continuous and partially-bent protruding part, and the periphery of the cover body is provided with a bent edge; the heat conducting plate is arranged on the side, facing the channel of the protruding part, of the cover body, a cavity allowing fluid to flow is defined by the heat conducting plate and the channel of the protruding part, and through holes communicating with the cavity are formed in the two ends of the protruding part; the heating piece is mounted on one side, back to the cavity, of the heat conducting plate; wherein the bent edge is at least adjacent to the heat conducting plate and part of the edge of the heating piece; according to the utility model, the edge of the cover body is provided with the bent edge around the heat conducting plate and the heating piece, the bent edge can limit the heat conducting plate and the heating piece before a brazing step, the stability of the heat conducting plate and the heating piece moving along with the cover body is ensured, and the bent edge can effectively avoid deformation of the heat conducting plate and the cover body during brazing. The forming process of the cover body and the heat-conducting plate is ensured.

Description

Technical Field

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

[0002] Heating devices and household appliances are a type of equipment used to provide heating functions in a household environment. They convert electrical energy, gas, or other energy sources to generate heat to meet the needs of household heating, cooking, hot water supply, etc. When an electric current passes through an electric heating tube, heat is generated, thereby heating water or liquid.

[0003] Currently, during the production of heating devices, two plate bodies are covered to form a flow chamber between them. Specifically, as disclosed in a deformation-proof sealed flow channel heating device with the Chinese Patent Publication No. CN212381418U, it covers a heating plate and a flow channel plate, and a solder layer is provided on the surface of the heating plate, and brazing is used for forming. However, in the above solution, if brazing is used for forming between the heating plate and the flow channel plate, when the heat conducting plate and the heating element are transported on a conveyor line, it is extremely easy for the heat conducting plate and the heating element to shift relative to the cover body, resulting in extremely easy occurrence of errors in brazing, affecting the forming process. At the same time, brazing will also cause deformation due to expansion between the heat conducting plate and the cover body, affecting the quality of the product. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model limits the heat conducting plate and the heating element by using the bent edge at the edge of the cover body. The specific technical solutions are as follows:

[0005] A heating device includes a cover body provided with a continuous and partially curved protruding portion, and a bent edge is provided at the periphery of the cover body; a heat conducting plate disposed on one side of the cover body facing the groove of the protruding portion, and the groove of the protruding portion defines a chamber for fluid flow with the heat conducting plate, and through holes communicating with the chamber are opened at both ends of the protruding portion; and a heating element installed on the side of the heat conducting plate facing away from the chamber; wherein, the bent edge is adjacent to at least part of the edges of the heat conducting plate and the heating element.

[0006] In an embodiment, one end of the bent edge away from the cover body is inclined outward and forms an angle a with the plane of the cover body, and the value of a is 80° - 120°.

[0007] In an embodiment, the height value of the bent edge is 1 - 20 mm.

[0008] In an embodiment, the four corners of the cover body extend outwards to form extension parts, and fastening holes for installation are opened on the extension parts.

[0009] In an embodiment, both the cover body and the heat conducting plate are made of metal hardware.

[0010] In one embodiment, the shape of the heating element is S-shaped, U-shaped, C-shaped or Z-shaped.

[0011] A household appliance is equipped with the above-mentioned 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] From the above technical solutions, it can be seen that the present utility model has the following beneficial effects:

[0014] In the present utility model, a bent edge is provided at the edge of the cover body around the heat conducting plate and the heating element. Before the brazing step, the bent edge can play a limiting role on the heat conducting plate and the heating element, ensuring the stability of the heat conducting plate and the heating element moving with the cover body. When brazing, the bent edge can effectively prevent the deformation of the heat conducting plate and the cover body, ensuring the forming process of the cover body and the heat conducting plate.

[0015] The cover body and the heat conducting plate are attached. A chamber for water body flow is defined between the protruding part on the cover body and the heat conducting plate. The heating element is attached to the heat conducting plate. Then, the water body in the chamber can be directly heated through the heat conducting plate without heating the whole housing, reducing heat loss and greatly improving the heat utilization rate of the heating device.

[0016] Extension parts are provided at the four corners of the cover body, and fastening holes are provided on the extension parts. When installing the heating device, it can be installed with the electrical housing only through the extension parts and the fastening holes, greatly simplifying the installation method of the heating device, eliminating the need to use an additional bracket to fix the electrical appliance, reducing material loss, avoiding defects in the welding of the bracket and the cover body during the welding process, affecting the installation stability of the heating device and the electrical appliance, and at the same time simplifying the overall spatial layout of the electrical appliance and reducing cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an exploded structural schematic diagram of the first embodiment of the present utility model;

[0018] Figure 2 is an exploded structural schematic diagram of the second embodiment of the present utility model;

[0019] Figure 3 is a top view structural schematic diagram of the second embodiment of the present utility model;

[0020] Figure 4 is of the present utility model Figure 3 is a cross-sectional structural schematic diagram taken along A-A in;

[0021] Figure 5 is a partial cross-sectional structural schematic diagram of the second embodiment of the present utility model.

[0022] In the figure: 1. Cover body; 11. Protrusion; 12. Extension part; 13. Fastening hole; 14. Flanging; 15. Through hole; 2. Heat conducting plate; 3. Heating element; 4. Water nozzle. Detailed implementation manners

[0023] The following combines the accompanying drawings and specific embodiments to elaborate on the present utility model in detail. Before elaborating on the technical solutions of each embodiment of the present utility model, the nouns and terms involved are explained. In this specification, components with the same name or the same reference numeral represent similar or identical structures, and are for illustrative purposes only.

[0024] As Figure 1 and Figure 2 shown, a heating device includes a cover body 1 which is provided with a continuous and partially curved protrusion 11, and the periphery of the cover body 1 is provided with a flanging 14; a heat conducting plate 2 which is arranged on one side of the cover body 1 facing the groove of the protrusion 11, and the groove of the protrusion 11 defines a chamber for fluid flow, and through holes 15 communicating with the chamber are opened at both ends of the protrusion 11; and a heating element 3 which is installed on the side of the heat conducting plate 2 facing away from the chamber; the flanging 14 is at least adjacent to part of the edges of the heat conducting plate 2 and the heating element 3. Among them, the protrusion 11 has a curved section, preferably has a curved section and a straight section. The combination of the straight section and the curved section can increase the length of the protrusion 11 on the cover body 1, and can increase the travel of the water flow. The water in the chamber is directly heated by the heat conducting plate 2. At the same time, the processing method between the cover body 1 and the heat conducting plate 2 is simpler, reducing material loss and processing procedures, greatly reducing the cost required for the production of the heating device. At the same time, both the heat conducting plate 2 and the heating element 3 are adjacent to the flanging 14. Before brazing, the flanging 14 can limit the edges of the heat conducting plate 2 and the heating element 3 to prevent the heat conducting plate 2 and the heating element 3 from shifting in position relative to the cover body 1. At the same time, during brazing, the flanging 14 can block the edges of the heat conducting plate 2 and the heating element 3, effectively preventing the cover body 1 and the heat conducting plate 2 from deforming due to heat, which affects the stability of the water flow in the chamber and also affects the forming process.

[0025] 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, and the heat conducting plate 2 is heated and then 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.

[0026] As Figure 1 , Figure 2 and Figure 5As shown, one end of the flanging 14 away from the cover body 1 is inclined outwards, forming an angle a with the plane of the cover body 1. The value of a is 80° - 120°, that is, the perpendicular bisector of the cross-section of the flanging 14 forms an angle a with the plane of the cover body 1. When a is 80°, the flanging 14 is inclined inwards. Since the flanging 14 is adjacent to the heat conduction plate 2, there is a gap between them, allowing the heat conduction plate 2 to be placed on the cover body 1 from the inwards-inclined flanging 14. When a is 90°, the flanging 14 is a straight line segment, which is perpendicular to the plane of the cover body 1. The flanging 14 can be closely attached to or in contact with the edges of the heat conduction plate 2 and the heating element 3, limiting the heat conduction plate 2 and the heating element 3, and at least part of the flanging 14 is attached to the edge of the heating element 3. When the value of a is 120°, when the heating element 3 is placed on the heat conduction plate 2, the heating element 3 can easily fall onto the heat conduction plate 2 along the rounded corner of the flanging 14. When the heating element 3 lands on the heat conduction plate 2, the straight section of the flanging 14 contacts the edge of the heating element 3 to achieve the limiting operation. In addition to the above operations, the heating element 3 can also be squeezed onto the heat conduction plate 2 through the flanging 14, that is, the heating element 3 is squeezed through the rounded corner of the flanging 14 so that the heating element 3 is squeezed to the straight section of the flanging 14 and is attached to the heat conduction plate 2, which can further improve the limiting effect of the flanging 14 on the heating element 3. Therefore, no matter which angle is adopted above, when the whole device is on the conveyor belt, the heating element 3 is limited by the flanging 14 and will not fall out of the heat conduction plate 2.

[0027] Embodiment 1:

[0028] As Figure 1 shown, in the above solution, the flanging 14 of this embodiment forms a continuous flange on the side of the cover body 1. The flanging 14 partially shields the periphery of the heat conduction plate 2 and the edge of the heating element 3, so that during brazing, it can be ensured that the water body will not flow due to deformation between the cover body 1 and the heat conduction plate 2.

[0029] Embodiment 2:

[0030] As Figures 2 - 4 shown, a part of the periphery of the cover body 1 is folded and extended to the side of the heat conduction plate 2. Among them, the flanging 14 is perpendicular to the plane of the cover body 1. The flanging 14 limits the periphery of the heat conduction plate 2 to prevent the heat conduction plate 2 from shifting during welding with the cover body 1. The flanging 14 is located between two adjacent extension parts 12. The flanging 14 is folded on the side of the cover body 1, causing a depression to form on the cover body 1 at the flanging 14. When the extension part 12 is installed with the electrical appliance, the depressed part of the cover body 1 can provide an installation space for the electrical appliance, and at the same time, the flanging 14 can separate the heat conduction plate 2 from the electrical appliance housing.

[0031] As Figure 1 and Figure 3As shown, the height value of the flanging 14 is 1 - 20 mm, preferably 4 - 10 mm, which can be selected according to the thickness of the heat conduction plate 2. The height of the flanging 14 can completely cover the thickness of the heat conduction plate 2 to play a role in separation. In this application, according to the thickness of the heating element 3 and the heat conduction plate 2, a range of 4 - 10 mm is adopted to ensure that the flanging 14 can completely cover the side of the heat conduction plate 2, and the part exceeding the heat conduction plate 2 can separate the heating element 3 from the installation part of the electrical appliance;

[0032] For the explanation of the height values in the above two embodiments, for Embodiment 1, the height value of the flanging 14 refers to the length of its straight section being 2 - 20 mm, preferably 4 - 10 mm; for Embodiment 2, the height value of the flanging 14 refers to the distance between the center point of the end face of its bent section and the cover body 1 being 2 - 20 mm, preferably 4 - 10 mm.

[0033] As Figures 2 - 3 shown, the four corners of the cover body 1 extend outwards to form extension parts 12, and fastening holes 13 for installation are provided on the extension parts 12. The flanging 14 is located between two adjacent extension parts 12. Among them, the extension parts 12 extend outwards from the four corners of the cover body 1, and fastening holes 13 are provided on all the extension parts 12. The fastening holes 13 facilitate the installation with the electrical appliance, improving the installation convenience. There is no need to weld the bracket to the electrical appliance installation again, saving the installation steps and reducing the installation space, and saving the cost input required for processing. The flanging 14 is arranged between two adjacent extension parts 12, providing space for the installation of the extension parts 12, and at the same time separating the part installed with the extension parts 12 from the heating element 3 through the flanging 14, playing a certain protective effect.

[0034] As Figure 1 and Figure 2 shown, the shape of the heating element 3 is S-shaped, U-shaped, C-shaped or Z-shaped to increase the area where the heating element 3 fits on the heat conduction plate 2 and improve the heat conduction efficiency. The protruding part 11 has a bent section, preferably having a bent section and a straight section. The combination of the straight section and the bent section can increase the length of the protruding part 11 on the cover body 1, increasing the travel of the water flow. Preferably, a serpentine method is adopted to enable the protruding part 11 to be wound circularly on the entire cover body 1.

[0035] Both the cover body 1 and the heat conduction plate 2 are made of metal hardware. The materials of the cover body 1 and the heat conduction plate 2 are aluminum or aluminum alloy, and the material of the heating element 3 is aluminum alloy, which can improve the heat conduction performance. The shape of the heating element 3 is preferably S-shaped to increase the contact area between the heating element 3 and the heat conduction plate 2.

[0036] As Figure 1 、 Figure 2 and Figure 4As shown, through holes 15 are provided at both ends of the protrusion 11, and a water nozzle 4 is installed in the through hole 15. Among them, if the water nozzle 4 is adopted, the water nozzle 4 and the through hole 15 are welded into one piece, and then the water nozzle 4 can be connected to an external hose. Water enters the chamber from the water nozzle 4 at one end and flows out from the water nozzle 4 at the other end.

[0037] One of the extension parts 12 is provided with a grounding hole for convenient grounding.

[0038] A household appliance is equipped with the above-mentioned heating device. The appliance can be any one of a clothes iron, an electric iron, a steam mop, a steam wallpaper pasting machine, a dishwasher, and a washing machine. Among them, in the above-mentioned household appliance, the heating device is placed in the housing of the household appliance and installed with the housing through the extension part 12 and the fastening hole 13, which simplifies the installation steps. The hot water or steam required by the household appliance is provided by the heating device.

[0039] The above-described embodiments are merely 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 heating device, characterized in that, Comprising: A cover body (1) provided with a continuous and partially curved protruding portion (11), and a flanging (14) is provided at the periphery of the cover body (1); A heat conducting plate (2) provided on the side of the cover body (1) facing the channel of the protruding portion (11), and a chamber for fluid flow is defined by the channel of the protruding portion (11), and through holes (15) communicating with the chamber are opened at both ends of the protruding portion (11); and A heating element (3) installed on the side of the heat conducting plate (2) facing away from the chamber; Wherein, the flanging (14) is adjacent to at least part of the edges of the heat conducting plate (2) and the heating element (3).

2. The heating device according to claim 1, characterized in that, One end of the flanging (14) away from the cover body (1) is inclined outwards and forms an angle a with the plane of the cover body (1), and the value of a is 80° - 120°.

3. The heating device according to claim 1, characterized in that The height value of the flanging (14) is 1 - 20 mm.

4. The heating device according to any one of claims 1-3, characterized in that, Extensions (12) are formed by extending the four corners of the cover body (1), and fastening holes (13) for installation are opened on the extensions (12).

5. The heating device according to claim 1, characterized in that, Both the cover body (1) and the heat conducting plate (2) are made of metal hardware materials.

6. The heating device according to claim 4, wherein The shape of the heating element (3) is S-shaped, U-shaped, C-shaped or Z-shaped.

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

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

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