Steam generating device and household appliance

Abstract

The utility model discloses a steam generating device and a household appliance. Comprising a runner plate, at least one side of the runner plate is provided with an opening, a runner is arranged in the runner plate, and the two opposite ends of the runner plate are provided with a water inlet and a steam outlet; the cover plate covers the opening, the cover plate comprises a base plate and a heating film arranged on the base plate, and the heating film is arranged on the surface of the base plate in a parallel connection mode or covers the surface of the base plate in a sheet-shaped mode and is arranged on the side, away from the runner plate, of the base plate. According to the steam generating device, heating is conducted in the mode that the heating film is arranged, the contact area between the heating film and the base plate is large, equivalently, the heating area between the heating film and water flow is large, the water flow can be rapidly heated to generate steam, the waiting time of a user is shortened, and the use experience feeling of the user is improved.

Description

Technical Field

[0001] This utility model relates to the field of steam generating device technology, and in particular to a steam generating device and a household appliance. Background Technology

[0002] Steam-generating products typically require a preheating process before steam can be used. For example, household irons generally use resistance wire as the heating element. The resistance wire heats up and conducts the heat to a metal material, which then heats the water flow to produce steam.

[0003] Because the resistance wire is filamentous with a small diameter and a small heating area, the heat conversion efficiency is low. Water needs to absorb enough heat to turn into steam, which requires a waiting time ranging from tens of seconds to several minutes. This results in a long preheating time, which is inconvenient for users and leads to a poor user experience. Utility Model Content

[0004] To address at least one problem existing in the prior art, according to one aspect of the present invention, a steam generating apparatus is provided, comprising:

[0005] A flow channel plate, wherein at least one side of the flow channel plate is provided with an opening, a flow channel is provided inside the flow channel plate, and water inlets and steam outlets are provided at opposite ends of the flow channel plate;

[0006] A cover plate, including at least one, is disposed over the opening. The cover plate includes a substrate and a heating film disposed on the substrate. The heating film is disposed in parallel on the surface of the substrate or covers the surface of the substrate in a sheet-like manner, and is disposed on the side of the substrate away from the flow channel plate.

[0007] In some embodiments, the flow channel includes at least a first sub-flow channel and a second sub-flow channel that are connected to each other;

[0008] The flow channel plate includes a main body and a rib group disposed within the main body. The main body forms a cavity, and the rib group is disposed within the cavity. A first sub-flow channel is formed within the rib group, and a second sub-flow channel is formed between the rib group and the side wall of the cavity. The first sub-flow channel is connected to the water inlet, and the second sub-flow channel is connected to the steam outlet.

[0009] In some embodiments, the rib group includes a curved rib and at least one straight rib, the straight rib being disposed corresponding to the water inlet and extending toward the steam outlet, the curved rib being at least surrounding the end of the straight rib facing the water inlet, a first sub-flow channel being formed between the curved rib and the straight rib, and a second sub-flow channel being formed between the curved rib and the sidewall of the cavity.

[0010] In some embodiments, the rib group includes two parallel straight ribs, which are arranged on both sides of the inlet along a direction perpendicular to the water flow direction. The flow channel also includes a third sub-flow channel, which is formed by the two straight ribs surrounding each other.

[0011] In some embodiments, the bent rib is U-shaped.

[0012] In some embodiments, the curved rib is provided with a first adhesive groove, the length of the first adhesive groove extending in the same direction as the extension direction of the curved rib.

[0013] In some embodiments, the longest distance L2 between the water inlet and the curved rib is 2 / 3 to 4 / 5 of the length L1 of the cavity.

[0014] In some embodiments, the flow channel plate has openings on both sides, and the steam generator includes two cover plates, one of which covers one of the openings.

[0015] In some embodiments, the flow channel plate includes a main body and a partition. The main body has a cavity, and the partition is disposed in the cavity to divide the two cavities into two sub-cavities. Each sub-cavity is provided with the flow channel. The water inlet and the steam outlet are located at opposite ends of the main body, and each sub-cavity is connected to the water inlet and the steam outlet, respectively.

[0016] In another aspect, this utility model provides a household appliance that includes the steam generating device described above.

[0017] In summary, the steam generator and household appliance provided by this utility model have the following technical effects:

[0018] By setting up a flow channel plate to create flow channels in the flow plate, a heating film is set on the cover plate when heating the water flow in the flow channel. Since the heating film is set on the substrate surface in a parallel or sheet-like manner and has a large coverage area, it can have a large contact area with the substrate, which is equivalent to having a large heating area with the water flow in the flow channel plate. This allows the water flow to be heated quickly to generate steam, reducing the user's waiting time and improving the user experience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the steam generating device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the exploded steam generator;

[0021] Figure 3 for Figure 2 A schematic diagram of the cover plate in the middle;

[0022] Figure 4 for Figure 3 A cross-sectional schematic diagram of the cover plate in the middle;

[0023] Figure 5 This is a schematic diagram illustrating one arrangement of the heating film according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram illustrating another configuration of the heating film according to an embodiment of the present invention;

[0025] Figure 7 for Figure 2 A three-dimensional schematic diagram of the flow channel plate in the middle;

[0026] Figure 8 for Figure 7 A top view of the flow channel plate in the middle;

[0027] Figure 9 for Figure 7 A cross-sectional view of the flow channel plate in the middle.

[0028] Attached Figures: 100-Steam Generator, 10-Flow Channel Plate, 11-Opening, 12-Water Inlet, 13-Steam Outlet, 14-Flow Channel, 141-First Sub-Flow Channel, 142-Second Sub-Flow Channel, 143-Third Sub-Flow Channel, 15-Main Body, 151-Second Glue Tank, 16-Baffle Plate, 17-Cavity, 18-Sub-Cavity, 19-Rib Group, 191-Bent Rib, 1911-Straight Section, 1912-Arc Section, 192-Straight Rib, 193-First Glue Tank, 20-Cover Plate, 21-Base Plate, 22-Heating Film, 23-Outer Insulation Layer, 24-Inner Insulation Layer, 30-Water Inlet Pipe, 40-Steam Conduit Pipe. Detailed Implementation

[0029] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] Please see Figures 1 to 9 The steam generating device 100 provided in this embodiment of the utility model includes a flow channel plate 10 and a cover plate 20.

[0034] Please refer to Figure 1 and Figure 2 The flow channel plate 10 has an opening 11 on at least one side, a flow channel 14 is provided inside the flow channel plate 10, and water inlets 12 and steam outlets 13 are provided at opposite ends of the flow channel plate 10; the cover plate 20 includes at least one, the cover plate 20 covers the opening 11, the cover plate 20 includes a substrate 21 and a heating film 22 disposed on the substrate 21, the heating film 22 is disposed on the surface of the substrate 21 in parallel or covers the surface of the substrate 21 in a sheet-like manner, and is disposed on the side of the substrate 21 away from the flow channel plate 10.

[0035] The steam generator 100 described above, by setting a flow channel plate 10, sets a flow channel 14 in the flow plate. When heating the water flow in the flow channel 14, a heating film 22 is set on the cover plate 20. Since the heating film 22 is set on the surface of the substrate 21 in a parallel manner or in a sheet-like manner, and the heating film 22 has a large coverage area, it can have a large contact area with the substrate 21, which is equivalent to having a large heating area with the water flow in the flow channel plate 10. This can quickly heat the water flow to generate steam, reduce the user's waiting time, and improve the user's user experience.

[0036] Understandably, the heating film 22 needs to be connected to an input electrode and an output electrode, each with its own pins. These pins are connected to an external power source to receive current, thereby enabling the heating function of the heating film 22. Furthermore, the structure of the heating film 22 may include a multi-layer structure consisting of a polyimide base material, a conductive layer made of metal foil (e.g., nickel-chromium alloy (NiCr), copper, or silver) or carbon material, and an insulating protective layer covering the conductive layer.

[0037] Furthermore, the flow channel plate 10 is provided with a water inlet pipe 30 and a steam conduit 40 to introduce water flow and exhaust steam. When setting the water inlet 12 and the steam outlet 13, the water inlet 12 and the steam outlet 13 can be set on the end face of the flow channel plate 10 in the length direction, or on the same side of the flow channel plate 10 as the opening 11, or respectively set on opposite sides of the flow channel plate 10 along the thickness direction. The positions of the water inlet 12 and the steam outlet 13 can be set according to the actual installation needs, and are not limited here.

[0038] The cover plate 20 is placed over the opening 11 of the flow channel plate 10 to seal the opening 11. When the cover plate 20 is heated, heat is transferred to the water flow in the flow channel plate 10, thereby rapidly heating the water flow.

[0039] Specifically, please refer to Figures 3 to 6 In this embodiment, the cover plate 20 includes at least a substrate 21, a heating film 22 disposed on the surface of the substrate 21, and an outer insulating layer 23. When the substrate 21 is made of a conductive material, the cover plate 20 also includes an inner insulating layer 24. The inner insulating layer 24 is disposed between the heating film 22 and the substrate 21 to electrically insulate the substrate 21 and the heating film 22, so as to prevent the substrate 21 from receiving the current transmitted by the electrode and causing leakage.

[0040] Understandably, when the outer insulating layer 23 is provided, the outer insulating layer 23 needs to cover the heating film 22 to prevent the heating film 22 from being exposed and coming into contact with water and oxygen. Furthermore, when providing each insulating layer and the heating film 22 on the substrate 21, processes such as printing sintering or vapor deposition can be used.

[0041] Furthermore, in order to detect the temperature of the cover plate 20 in real time, a temperature detection sensor can be installed on the side of the cover plate 20 away from the flow channel plate 10, so that the temperature can be monitored in real time and the temperature can be avoided from being too high or too low.

[0042] Please see Figures 7 to 9 This is a structural diagram of the flow channel plate 10 in this embodiment. In order to achieve rapid heating of the water flow, the flow channel plate 10 has openings 11 on both sides in the thickness direction. The steam generating device 100 includes two cover plates 20, one of which covers one side of the opening 11. Thus, there are two openings 11 on both sides, and the cover plates 20 on both sides can heat the water flow, increasing the heat transfer of the water flow so that the water flow can be heated quickly and steam can be generated quickly.

[0043] In one embodiment of this utility model, when two openings 11 are provided on the flow channel plate 10, the flow channel plate 10 includes a main body 15 and a partition plate 16. The main body 15 has a cavity 17, and the partition plate 16 is disposed in the cavity 17 to divide the two cavities 17 into two sub-cavities 18. Each sub-cavity 18 is provided with a flow channel 14. A water inlet 12 and a steam outlet 13 are disposed at opposite ends of the main body 15. Each sub-cavity 18 is connected to the water inlet 12 and the steam outlet 13, respectively. Thus, by providing a partition plate in the main body 15... Plate 16 separates two sub-cavities 18 in the main body 15 for heating water flow. One base plate 21 heats the water flow in one sub-cavity 18. Each sub-cavity 18 can quickly generate steam. When the steam generator 100 is applied to an iron, such as a handheld iron, the water flow at all angles can be heated as the hand flips or tilts the iron, avoiding dry burning, and steam can be generated in all states.

[0044] In another embodiment, when the flow channel plate 10 is provided with two openings 11, the flow channel 14 in the flow channel plate 10 can penetrate the flow channel plate 10 along the thickness direction of the flow channel plate 10. After a cover plate 20 is provided on each side, the two cover plates 20 can heat the water flow in one flow channel 14 at the same time, which can also achieve the effect of rapid heating of the water flow.

[0045] Alternatively, depending on the specific product to which the steam generator 100 is applied, only one opening 11 may be provided on the flow channel plate 10, and only one cover plate 20 may be provided on the steam generator 100.

[0046] Please see Figure 8 In this embodiment, the flow channel 14 includes at least a first sub-flow channel 141 and a second sub-flow channel 142 that are connected to each other. The flow channel plate 10 includes not only the main body 15 but also a rib group 19. The first sub-flow channel 141 is formed within the rib group 19, and the second sub-flow channel 142 is formed between the rib group 19 and the side wall of the cavity 17. The first sub-flow channel 141 is connected to the water inlet 12, and the second sub-flow channel 142 is connected to the steam outlet 13. Thus, by setting the rib group 19 within the main body 15, the entire flow channel plate 10 can have a certain thickness, thereby holding a certain amount of water and ensuring the steam output. In other embodiments, for example, the main body 15 includes a bottom plate, which is recessed in the direction away from the cavity 17 of the main body 15 to form the flow channel 14. A cover plate 20 is placed on the flow channel 14, which can also achieve the effect of allowing water to flow in and heating to generate steam.

[0047] Understandably, the method of setting ribs 19 in the flow channel plate 10 to form the flow channel 14 can be applied to the flow channel plate 10 forming only one opening 11, or it can be applied to the flow channel plate 10 forming two openings 11. When applied to the structure in which the flow channel plate 10 forms two openings 11, it can be that a partition 16 is set in the main body 15, or the flow channel 14 is through the flow channel plate 10 along the thickness direction of the flow channel plate 10. In all the above embodiments, ribs 19 can be set to form the flow channel 14.

[0048] Specifically, please refer to Figure 8 When forming the flow channel 14, the rib assembly 19 includes a curved rib 191 and at least one straight rib 192. The straight rib 192 is disposed corresponding to the inlet 12 and extends towards the outlet 13. The curved rib 191 is at least surrounding the end of the straight rib 192 facing the inlet 12. A first sub-flow channel 141 is formed between the curved rib 191 and the straight rib 192, and a second sub-flow channel 142 is formed between the curved rib 191 and the sidewall of the cavity 17. There is an outlet of the first sub-channel 141 between 191 and the straight rib 192, so that the water flowing in from the inlet 12 is dispersed by the straight rib 192 and guided to flow towards the steam outlet 13. At this time, it is initially heated in the first sub-channel 141, and the area in the first sub-channel 141 is a heat absorption zone. After the water flows out from the first sub-channel 141, it flows into the second sub-channel 142 and is heated again. After absorbing heat and rising in temperature, it quickly vaporizes and is discharged from the steam outlet 13.

[0049] In one embodiment of this utility model, in order to improve the vaporization effect, the rib group 19 includes two parallel straight ribs 192. The two straight ribs 192 are arranged on both sides of the inlet 12 along the direction perpendicular to the water flow. The flow channel 14 also includes a third sub-flow channel 143. The third sub-flow channel 143 is formed between the two straight ribs 192, which is equivalent to setting the flow channel 14 in a three-section manner. When the water flows in from the inlet 12, it enters the third sub-flow channel 143. The third sub-flow channel 143 is a heat absorption zone and is initially heated. When the water flows to the curved ribs 191, it is separated to both sides of the two straight ribs 192, that is, separated into the first sub-flow channel 141. After absorbing heat and vaporizing in the first sub-flow channel 141, it enters the second sub-flow channel 142. The remaining liquid water continues to vaporize, and finally the steam is discharged from the steam outlet 13.

[0050] In another embodiment of this utility model, only one straight rib 192 can be provided. The straight rib 192 is provided on the inflow section of the inlet 12. When the water flows in from the inlet 12, the water flow is separated by the straight rib 192, and each part flows in the direction of the curved rib 191. At this time, the straight rib 192 and the part of the curved rib 191 on each side form a first sub-channel 141. When the water is heated, it flows out from the outlet between the curved rib 191 and the straight rib 192 and flows into the second sub-channel 142 formed between the curved rib 191 and the side wall of the main body 15. It is then reheated and vaporized into steam, and then discharged from the steam outlet 13.

[0051] Furthermore, when setting the straight rib 192, the straight rib 192 can be connected to the side wall of the cavity 17, or have a certain distance from the side wall of the cavity 17, both of which can achieve the effect of guiding or dispersing the water flow.

[0052] When the straight rib 192 is set, the longest distance L2 between the water inlet 12 and the curved rib 191 is 2 / 3 to 4 / 5 of the length L1 of the cavity 17. That is, the straight rib 192 has a certain extension length to prevent the water flow part away from the water inlet 12 from generating steam and being sprayed out quickly due to rapid heating. By setting a straight rib 192 of appropriate length, the water flow can be heated in an orderly manner.

[0053] Specifically, please refer to Figure 8 In this embodiment, the curved rib 191 is U-shaped, comprising two parallel straight segments 1911 and an arc segment 1912 connecting the two straight segments 1911. The arc segment 1912 and the inlet 12 are separated by a distance L2. The straight segments 1911 correspond to the straight rib 192, and the ends of the arc segment 1912 and the straight rib 192 are positioned opposite each other, thus creating a second sub-channel 142 of a certain length between the straight segments 1911 and the straight rib 192, allowing the water to be gradually heated. In other embodiments, the curved rib 191 can also be configured as a crescent-shaped or other arc-shaped structure.

[0054] Since the flow channel plate 10 and the cover plate 20 have a certain extension length and a certain cross-sectional area, in order to ensure the fit between the cover plate 20 and the flow channel plate 10, the curved rib 191 is provided with a first adhesive groove 193. The first adhesive groove 193 is used to contain adhesive. The extension direction of the length of the first adhesive groove 193 is the same as the extension direction of the length of the curved rib 191. Thus, when the flow channel plate 10 and the cover plate 20 are installed, adhesive can be injected into the first adhesive groove 193. The cover plate 20 is not only bolted to the flow channel plate 10 through the boundary, but also bonded to the flow channel plate 10 through the middle area of ​​the cover plate 20. This increases the connection point and connection area between the flow channel plate 10 and the cover plate 20, ensuring the connection strength.

[0055] Furthermore, the main body 15 is provided with a second glue-receiving groove 152, which is arranged around the circumference of the main body 15, further increasing the connection point and connection area between the flow channel plate 10 and the cover plate 20, and strengthening the connection strength.

[0056] The steam generator 100 described above provides openings 11 on both sides of the flow channel plate 10 in the thickness direction, and provides a cover plate 20 at each opening 11. The water flow is heated by the two cover plates 20, which increases the heat exchange area and the vaporization efficiency. The flow channel 14 is configured to include a first sub-flow channel 141, a second sub-flow channel 142 and a third sub-flow channel 143, which provides three-stage heating and improves the vaporization efficiency.

[0057] In another embodiment of the present invention, a household appliance is also provided, including the steam generator 100 described above. The household appliance may be, for example, a handheld iron or a hanging iron.

[0058] The aforementioned household appliances, because the steam generator 100 can quickly heat water into steam, shorten the user's waiting time and improve the user experience.

[0059] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A steam generating device (100), characterized in that, include: A flow channel plate (10) is provided with an opening (11) on at least one side, a flow channel (14) is provided inside the flow channel plate (10), and a water inlet (12) and a steam outlet (13) are provided at opposite ends of the flow channel plate (10). A cover plate (20), including at least one, is disposed over the opening (11). The cover plate (20) includes a substrate (21) and a heating film (22) disposed on the substrate (21). The heating film (22) is disposed on the surface of the substrate (21) in parallel or covers the surface of the substrate (21) in a sheet-like manner, and is disposed on the side of the substrate (21) away from the flow channel plate (10).

2. The steam generating device (100) according to claim 1, characterized in that, The flow channel (14) includes at least a first sub-flow channel (141) and a second sub-flow channel (142) that are connected to each other; The flow channel plate (10) includes a main body (15) and a rib group (19) disposed in the main body (15). The main body (15) forms a cavity (17). The rib group (19) is disposed in the cavity (17). A first sub-flow channel (141) is formed in the rib group (19). A second sub-flow channel (142) is formed between the rib group (19) and the side wall of the cavity (17). The first sub-flow channel (141) is connected to the water inlet (12). The second sub-flow channel (142) is connected to the steam outlet (13).

3. The steam generator (100) according to claim 2, characterized in that, The rib group (19) includes a curved rib (191) and at least one straight rib (192). The straight rib (192) is disposed corresponding to the water inlet (12) and extends toward the steam outlet (13). The curved rib (191) is at least surrounding the end of the straight rib (192) facing the water inlet (12). A first sub-channel (141) is formed between the curved rib (191) and the straight rib (192), and a second sub-channel (142) is formed between the curved rib (191) and the sidewall of the cavity (17).

4. The steam generator (100) according to claim 3, characterized in that, The rib group (19) includes two parallel straight ribs (192), which are arranged on both sides of the inlet (12) in a direction perpendicular to the water flow direction. The flow channel (14) also includes a third sub-flow channel (143), which is formed by the two straight ribs (192).

5. The steam generating apparatus (100) according to claim 3 or 4, characterized in that, The curved rib (191) is U-shaped.

6. The steam generating apparatus (100) according to claim 3 or 4, characterized in that, The curved rib (191) is provided with a first adhesive groove (193), and the extension direction of the first adhesive groove (193) is the same as the extension direction of the curved rib (191).

7. The steam generating apparatus (100) according to claim 3 or 4, characterized in that, The longest distance L2 between the water inlet (12) and the curved rib (191) is 2 / 3 to 4 / 5 of the length L1 of the cavity (17).

8. The steam generator (100) according to claim 1, characterized in that, The flow channel plate (10) has openings (11) on both sides of each other, and the steam generating device (100) includes two cover plates (20), one of which covers one of the openings (11).

9. The steam generating apparatus (100) according to claim 8, characterized in that, The flow channel plate (10) includes a main body (15) and a partition (16). The main body (15) has a cavity (17) and the partition (16) is located in the cavity (17) to divide the two cavities (17) into two sub-cavities (18). Each sub-cavity (18) is provided with a flow channel (14). The water inlet (12) and the steam outlet (13) are located at opposite ends of the main body (15). Each sub-cavity (18) is connected to the water inlet (12) and the steam outlet (13) respectively.

10. A household appliance, characterized in that, Includes the steam generating apparatus (100) as described in any one of claims 1-9.

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