CN113280321A

CN113280321A - Steam generating device and household appliance

Info

Publication number: CN113280321A
Application number: CN202110714307.8A
Authority: CN
Inventors: 苏杭; 程义付; 奚伟永; 程福萍
Original assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Midea Group Co Ltd; Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-08-20

Abstract

The invention discloses a steam generating device and a household appliance, wherein the steam generating device comprises a shell and a heating element, the shell is provided with a water inlet and a steam outlet which are respectively communicated with the interior of the shell, at least part of the heating element is arranged in the shell to divide the interior space of the shell into a first cavity and a second cavity, the first cavity is communicated with the water inlet, the second cavity is communicated with the steam outlet, and the first cavity is communicated with the second cavity through a connecting channel positioned on the heating element. When the steam heating device is used for the household appliance and provides steam for the household appliance, purified water is injected into the first cavity, the purified water forms steam under the action of the heating element, the steam enters the second cavity through the connecting channel and flows towards the steam outlet, the heating element continues to heat the steam in the flowing process, and the steam is discharged after reaching the steam outlet and is conveyed to the position required by the household appliance. By arranging the heating members inside the case, the heating members heat the first chamber and the second chamber, respectively, thereby improving the heat efficiency of the steam generating device.

Description

Steam generating device and household appliance

Technical Field

The invention relates to the technical field of household appliances, in particular to a steam generating device and a household appliance.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

A home appliance (a steam mop, etc.) having a steam function generally includes a steam generating device that heats water to form high-temperature steam and outputs the high-temperature steam so that the home appliance realizes the steam function.

Among the prior art, a steam generating device includes a housing and a heating member, the heating member is disposed outside the housing, and the heating member indirectly heats water in the housing by heating the housing to form steam. However, the heating member is disposed outside the housing, and heating efficiency is low.

Disclosure of Invention

The object of the present invention is to at least solve the problem of how to increase the heating efficiency of a steam generating device. The purpose is realized by the following technical scheme:

a first aspect of the present invention proposes a steam generating device comprising:

the steam generator comprises a shell, a steam inlet and a steam outlet, wherein the shell is provided with a water inlet and a steam outlet which are respectively communicated with the interior of the shell;

the heating element, at least part heating element is located in the casing to with the inner space of casing divides into first cavity and second cavity, first cavity with the water inlet intercommunication, the second cavity with steam outlet intercommunication, first cavity through be located connecting channel on the heating element with the second cavity intercommunication.

According to the steam generating device, when the steam generating device is used for a household appliance and provides steam for the household appliance, pure water is injected into the first cavity through the inlet of the water tank of the household appliance, the temperature of the pure water entering the first cavity is increased under the action of the heating element, steam is formed, the formed steam enters the second cavity through the connecting channel, the steam entering the second cavity flows towards the steam outlet, the heating element continues to heat the steam in the flowing process, and the steam is discharged and conveyed to the position required by the household appliance after reaching the steam outlet.

By arranging the heating members inside the case, the first and second chambers are heated by the heating members, respectively, thereby improving the heat efficiency of the steam generating apparatus.

In addition, the steam generating device according to the present invention may further have the following additional technical features:

in some embodiments of the invention, the heating element comprises a heating sheet disposed within the housing, a first heating surface of the heating sheet for heating the first chamber, and a second heating surface of the heating sheet for heating the second chamber.

In some embodiments of the present invention, the heating member further includes a substrate having a wiring structure, the heating sheet is disposed on the substrate, the wiring structure is provided with a waterproof structure and is disposed inside the case, or the wiring structure is located outside the case.

In some embodiments of the invention, the first chamber and the second chamber are separated by the substrate, and the connecting channel is disposed on the substrate.

In some embodiments of the present invention, the heating element further includes an inner shell covering the outside of the heating element, at least a portion of the inner shell is disposed in the shell, the inner shell located in the shell partitions the interior of the shell into the first cavity and the second cavity, and the inner shell located in the shell is provided with the connecting channel.

In some embodiments of the invention, the inner shell comprises:

the first shell part is provided with a first accommodating groove;

the second shell is provided with a second accommodating groove, the second shell and the first shell are detachably buckled, the first accommodating groove and the second accommodating groove form an accommodating cavity, the wiring structure is arranged on the outer side of the accommodating cavity, the heating plate is arranged in the accommodating cavity, the first heating surface is abutted against the inner wall of the first accommodating groove, and the second heating surface is abutted against the inner wall of the second accommodating groove.

In some embodiments of the present invention, the first housing portion has a first channel portion opened thereon, the second housing portion has a second channel portion opened thereon, and when the first housing portion is mated with the second housing portion, the first channel portion and the second channel portion are communicated with each other to form the connection channel.

In some embodiments of the present invention, the heating element further includes a first sealing member interposed at a joint position of the first channel portion and the second channel portion.

In some embodiments of the invention, the steam generating apparatus further comprises:

the temperature control piece is detachably matched with the outer surface of the shell, and a detection end of the temperature control piece extends into the shell through a detection hole of the shell and is abutted against the heating element;

the second sealing piece is positioned in the shell and sleeved on the temperature control piece, and the second sealing piece is used for isolating the temperature control piece from the inside of the shell.

In some embodiments of the present invention, the housing includes a first half shell and a second half shell, the first half shell and the second half shell respectively fit with opposite sides of the heating element, the water inlet is provided on the first half shell, and the steam outlet is provided on the second half shell, or the water inlet is provided on the second half shell, and the steam outlet is provided on the first half shell.

In some embodiments of the invention, a first flow directing structure is provided within the first chamber, the first flow directing structure being provided within the first half shell or the first flow directing structure being provided on the heating element;

and/or a second flow guide structure is arranged in the second cavity, and the second flow guide structure is arranged in the second half shell or arranged on the heating element;

and/or the shell further comprises a third sealing element which is clamped at the combination position of the first half shell and the heating element;

and/or the shell further comprises a fourth sealing element which is clamped at the combination position of the second half shell and the heating element.

A second aspect of the present invention proposes a household appliance comprising:

a machine body including a water tank for storing purified water;

according to the steam generating device, the steam generating device is arranged on the machine body and is communicated with the water tank.

According to the household appliance, when the steam generating device provides steam for the household appliance, the water tank of the household appliance injects purified water into the first cavity through the water inlet, the temperature of the purified water entering the first cavity is increased under the action of the heating element, so that steam is formed, the formed steam enters the second cavity through the connecting channel, the steam entering the second cavity flows towards the steam outlet, the heating element continues to heat the steam in the flowing process, and the steam is discharged and conveyed to the position required by the household appliance after reaching the steam outlet.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a schematic structural view of a home appliance according to an embodiment of the present invention (taking the home appliance as a steam mop as an example);

fig. 2 is a partially exploded schematic view of the household appliance shown in fig. 1;

fig. 3 is a schematic structural view of a steam generating device of the home appliance shown in fig. 2 (the steam generating device is a first embodiment);

FIG. 4 is a sectional view taken along section A-A of the steam generator shown in FIG. 3;

FIG. 5 is an exploded schematic view of the steam generator shown in FIG. 3;

FIG. 6 is a schematic view of a first half-shell of the steam generator shown in FIG. 5;

FIG. 7 is a schematic view of a second half-shell of the steam generator shown in FIG. 5;

FIG. 8 is a schematic structural view of the first shell portion of the steam generating device shown in FIG. 5;

FIG. 9 is a structural schematic view of another viewing angle of the first shell portion shown in FIG. 8;

FIG. 10 is a schematic structural view of a second shell portion of the steam generating device shown in FIG. 5;

FIG. 11 is a structural schematic view of another viewing angle of the second shell portion shown in FIG. 10;

fig. 12 is a schematic structural view of a steam generating device of the home appliance shown in fig. 2 (the steam generating device is a second embodiment);

FIG. 13 is a sectional view taken along section B-B of the steam generator shown in FIG. 12;

FIG. 14 is an exploded schematic view of the steam generator shown in FIG. 12;

FIG. 15 is a schematic view of the first half-shell of the steam generator shown in FIG. 14;

FIG. 16 is a schematic view of the first housing half shown in FIG. 15 from another perspective;

fig. 17 is a structural schematic view of a second shell portion of the steam generating device shown in fig. 14.

The reference numbers are as follows:

100 is a household appliance;

10 is a machine body;

11 is a water tank;

20 is a steam generating device;

21 is a shell;

211 is a first half shell, 2111 is a water inlet, 2112 is a detection hole, 2113 is a first connection part, 2114 is a second connection part, 2115 is a first connection structure, 2116 is a containing groove, 212 is a second half shell, 2121 is a steam outlet, 2122 is a second connection structure, 2123 is a limiting groove, and 2124 is a clamping joint;

22 is a heating element;

221 is a heating plate, 222 is a substrate, 2221 is a wiring structure, 2222 is a connecting channel, 2223 is a matching structure, 223 is an inner shell, 2231 is a first shell, 22311 is a first connecting body, 22312 is a spacing ring, 22313 is a first channel portion, 22314 is a clamping groove, 2232 is a second shell, 22321 is a second connecting body, 22322 is a second channel portion, 22323 is an accommodating structure, 224 is a first sealing element, 23 is a temperature control element, 24 is a fuse element, 25 is a connecting element, 26 is a second sealing element, 27 is a third sealing element, 28 is a fourth sealing element, 291 is a first flow guide structure, and 292 is a second flow guide structure.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 17, according to an embodiment of the present invention, there is provided a steam generating device 20, the steam generating device 20 including a housing 21 and a heating member 22, the housing 21 being provided with a water inlet 2111 and a steam outlet 2121 respectively communicating with an inside thereof, at least a part of the heating member 22 being provided in the housing 21 to divide an internal space of the housing 21 into a first chamber and a second chamber, the first chamber being communicated with the water inlet 2111, the second chamber being communicated with the steam outlet 2121, and the first chamber being communicated with the second chamber through a connecting passage 2222 provided on the heating member 22.

Specifically, when the steam generating device 20 is used in the household appliance 100 and provides steam for the household appliance 100, the water tank 11 of the household appliance 100 injects pure water into the first chamber through the water inlet 2111, the temperature of the pure water entering the first chamber is increased by the heating element 22, so that steam is formed, the formed steam enters the second chamber through the connecting channel 2222, the steam entering the second chamber flows towards the steam outlet 2121, the heating element 22 continues to heat the steam during the flowing process, and the steam is discharged after reaching the steam outlet 2121 and delivered to a position required by the household appliance 100.

By disposing the heating members 22 inside the casing 21, the first and second chambers are heated by the heating members 22, respectively, thereby improving the thermal efficiency of the steam generating device 20.

It should be understood that the first chamber and the second chamber can only be communicated through the connecting channel 2222 on the heating element 22, the water inlet 2111 is communicated with the first chamber, the steam outlet 2121 is communicated with the second chamber, after the steam generating device 20 is started, the purified water enters the first chamber from the water inlet 2111 and flows to the position where the connecting channel 2222 is communicated with the first chamber in the first chamber, during the flowing process, the heating element 22 heats the purified water, so that the purified water reaches a boiling point to form steam, the formed steam enters the second chamber through the connecting channel 2222, the steam entering the second chamber flows along the second chamber to the steam outlet 2121, and the heating element 22 continuously heats the steam flowing in the second chamber to further increase the temperature of the steam. The heating member 22 is provided inside the housing 21 so that the heating member 22 can directly heat the purified water and the steam, thereby reducing heat loss and improving heating efficiency.

It should be noted that the water inlet 2111 and the connecting channel 2222 are disposed on two opposite sides of the first chamber, and the steam outlet 2121 and the connecting channel are disposed on two opposite sides of the second chamber, and the arrangement of the water inlet 2111, the connecting channel 2222 and the steam outlet 2121 can further improve the thermal efficiency of the steam generating device 20, so that the uniformity of heating is ensured, the temperature gradient is reduced, and the steam generating effect is ensured.

It is further understood that, as shown in fig. 3 to 11 or fig. 12 to 17, the heating member 22 has a heating sheet 221, and the heating sheet 221 is provided in the housing 21, a first heating surface of the heating sheet 221 heats the first chamber, and a second heating surface of the heating sheet 221 heats the second chamber. Specifically, the first heating surface and the second heating surface are respectively disposed at opposite sides of the heating chip 221, and when the heating chip 221 is disposed inside the housing 21, the first heating surface maintains a maximum area in contact with the first chamber, and the second heating surface maintains a maximum area in contact with the second chamber. By providing the heating sheet 221 in the casing 21, the heating area of the heating member 22 can be increased, and the heat efficiency of the steam generator 20 can be further improved.

It should be noted that, in the present invention, the heating sheet 221 is a thick film heating sheet, which has a good heating effect and can further ensure the steam generation effect.

In addition, the volume of the steam generating device 20 can be effectively reduced by using the heating sheet 221 as the heat source of the steam generating device 20, so that the steam generating device 20 can be miniaturized, and when the steam generating device 20 is used in the household appliance 100, the installation space of the steam generating device 20 can be reduced, so that the space utilization rate of the household appliance 100 can be effectively improved.

In another embodiment of the present invention, the heating sheet 221 is a graphene heating sheet, and the heating efficiency of the steam generator 20 can be further improved by providing the heating sheet 221 with the graphene heating sheet.

Further, as shown in fig. 3 to 11 or fig. 12 to 17, the heating member 22 further includes a substrate 222 having a wiring structure 2221, the wiring structure 2221 is provided with a waterproof structure and is provided inside the housing 21, or the wiring structure 2221 is located outside the housing 21, and the heating sheet 221 is provided on the substrate 222. Specifically, the heating plate 221 is disposed on the substrate 222 and electrically connected to the wiring structure 2221, after the substrate 222 is mated with the housing 21, the wiring structure 2221 may be disposed inside the housing 21, or outside the housing 21, when the wiring structure 2221 is disposed inside the housing 21, the wiring structure 2221 is provided with a waterproof structure, when the wiring structure 2221 is disposed outside the housing 21, it is not necessary to perform waterproof processing on the wiring, and by the above-mentioned manner of disposing the wiring structure 2221, adverse effects (short circuit, etc.) on the wiring structure 2221 caused by water and/or steam in the housing 21 can be effectively avoided, thereby ensuring effective implementation of functions of the steam generator 20.

It should be noted that, when the wiring structure 2221 is disposed inside the housing 21, the wiring structure 2221 is provided with a waterproof structure, which may be a waterproof glue coated on the wiring structure 2221, an injection molded product on the wiring structure 2221, or the like.

Further, as shown in fig. 3 to 5 or fig. 12 to 14, the steam generating device 20 further has a second sealing member 26 and a temperature control member 23, the temperature control member 23 is detachably engaged with the outer surface of the casing 21, the casing 21 is provided with a detection hole 2112, the temperature control member 23 is engaged with the outer surface of the casing 21, and the detection end of the temperature control element 23 enters the interior of the shell 21 through the detection hole 2112, the detection end is abutted against the heating element 22 after entering the interior of the shell 21, the second sealing element 26 is sleeved on the detection end, the temperature control element 23 and the interior of the shell 21 are isolated from each other by the second sealing element 26, so as to realize the temperature detection of the heating element 22 by the detection end of the temperature control element 23 and simultaneously avoid the adverse effect of water and/or steam in the cavity on the temperature control element 23, thereby ensuring the temperature control element 23 to effectively control the steam generating device 20, and improving the control precision.

It is to be understood that the temperature control member 23 is disposed outside the housing 21 and directly contacts the heating member 22 (the temperature control member 23 is not in contact with the inner structure of the housing 21, thereby preventing water and/or steam from affecting the temperature control member 23 and ensuring the sensitivity of the temperature control member 23)

It should be noted that the second sealing element 26 is a sealing ring, the sealing ring is a rubber ring or a silica gel ring, the sealing ring and the detection hole 2112 are coaxially arranged, one side of the sealing ring abuts against the heating element 22, the other side of the sealing ring abuts against the inner wall of the casing 21, an installation space is isolated inside the casing 21 by the sealing ring, the installation space is communicated with the outside through the detection hole 2112, and part of the structure of the temperature control element 23 is installed in the installation space.

Further, as shown in fig. 3 to 5 or fig. 12 to 14, the steam generating device 20 has a fuse 24, and the fuse 24 is detachably engaged with the outer surface of the housing 21. Specifically, the fuse 24 is disposed outside the housing 21 and electrically connected to the control circuit of the steam generator 20, so as to prevent water and/or steam inside the housing 21 from adversely affecting the fuse 24 (causing short circuit, etc.), and when the steam generator 20 is dry-burned, the fuse 24 is fused to perform power-off processing on the steam generator 20, thereby ensuring safety of the steam generator 20.

It should be noted that, the outer surface of the housing 21 is provided with a first connection portion 2113 and a second connection portion 2114, the first connection portion 2113 and the second connection portion 2114 are disposed at intervals on two opposite sides of the detection hole 2112, the steam generator 20 further has a connection member 25, when the temperature control member 23 and the fuse 24 are mounted, the temperature control member 23 is mounted at the position of the detection hole 2112, so that the detection end of the temperature control member 23 is inserted into the housing 21 through the detection hole 2112, the fuse 24 is disposed in the groove of the first connection portion 2113, and finally the connection member 25 is respectively matched with the first connection portion 2113 and the second connection portion 2114, so as to press-fix the fuse 24 in the groove, and press-fix the temperature control member 23 in the detection hole 2112, thereby mounting the temperature control member 23 and the fuse 24. The temperature control member 23 and the fuse 24 can be mounted by providing one connecting member 25, thereby reducing the number of parts and the manufacturing cost of the steam generating apparatus 20.

In addition, the connecting member 25 is a tab structure that is fitted with the first connecting portion 2113 and the second connecting portion 2114 by fasteners (screws, rivets, or the like), respectively, thereby ensuring fixing strength and stability of the fuse element 24 and the temperature control element 23.

The temperature control 23 is a temperature controller or a temperature sensor, and the fuse 24 is a fuse (with a sleeve) or a fuse tube.

Further, as shown in fig. 3 to 7 or fig. 12 to 17, the housing 21 is formed by fastening the first half-shell 211 and the second half-shell 212 to each other, and the first half-shell 211 and the second half-shell 212 are respectively fitted to opposite sides of the heating member 22, wherein the first half-shell 211 and the heating member 22 form a first chamber, and the second half-shell 212 and the heating member 22 form a second chamber, so that the mounting of the heating member 22 and the maintenance and replacement of the heating member 22 are facilitated by providing the housing 21 in a structure of the first half-shell 211 and the second half-shell 212, thereby reducing the maintenance cost of the steam generator 20.

It should be noted that the water inlet 2111 may be a hole-like structure formed on the first half-shell 211, or may be a joint-like structure integrally formed on the first half-shell 211, and in the embodiment of the present invention, the water inlet 2111 is a joint-like structure integrally formed on the first half-shell 211; steam outlet 2121 may be a hole-shaped structure formed on second half-shell 212, or may be a joint-shaped structure integrally formed on second half-shell 212, in the embodiment of the present invention, steam outlet 2121 is a joint-shaped structure integrally formed on second half-shell 212; by the above-described structure of the water inlet 2111 and the steam outlet 2121, the connection of the steam generating device 20 can be facilitated, thereby improving the convenience of connecting the steam generating device 20 with other components.

Further, as shown in fig. 8, a first flow guiding structure 291 is disposed in the first chamber, the first flow guiding structure 291 is disposed in the first half-shell 211 or the first flow guiding structure 291 is disposed on the heating member 22. Specifically, be equipped with first water conservancy diversion structure 291 in first cavity, utilize first water conservancy diversion structure 291 to carry out the water conservancy diversion to the water purification that gets into in the first cavity to increased the route of flowing through of water purification in first cavity, further improved the heating effect of heating element 22 to the water purification, made steam generation device 20's thermal efficiency obtain further promotion.

It should be pointed out that first water conservancy diversion structure 291 sets up at the gusset for a plurality of intervals, utilizes a plurality of gusset settings to realize carrying out the water conservancy diversion to the water purification that gets into in the first chamber in first chamber, and the simple structure of a plurality of gussets can form the integral type structure with first half shell 211 or heating member 22 to guarantee the water conservancy diversion effect to the water purification.

Further, as shown in fig. 11, a second flow guiding structure 292 is disposed in the second chamber, the second flow guiding structure 292 is disposed in the second half-shell 212 or the second flow guiding structure 292 is disposed on the heating element 22. Specifically, be equipped with second water conservancy diversion structure 292 in the second cavity, utilize second water conservancy diversion structure 292 to carry out the water conservancy diversion to the steam that gets into in the second cavity to increased the route of flowing through of steam in the second cavity, can realize the steam-water separation in the steam when having improved the heating element 22 to the heating effect of steam, make the temperature homogeneity of the produced steam of steam generating device 20 better.

It should be pointed out that second water conservancy diversion structure 292 sets up at the gusset for a plurality of intervals, utilizes a plurality of gusset settings to realize carrying out the water conservancy diversion to the steam that gets into in the second chamber, and the simple structure of a plurality of gussets can form the integral type structure with half shell 212 of second or heating member 22 to guarantee the water conservancy diversion effect to the water purification.

Further, as shown in fig. 3 to 5 or fig. 12 to 14, the housing 21 further includes a third sealing member 27, and the third sealing member 27 is interposed at a position where the first half-shell 211 is combined with the heating member 22. Specifically, the third sealing member 27 seals the joint position of the first half-shell 211 and the heating member 22, thereby preventing the first chamber from being communicated with the outside to cause leakage.

It should be noted that the third sealing member 27 is a rubber ring or a silicone ring, the accommodating groove 2116 is formed on the first half-shell 211, and a part of the third sealing member 27 is disposed in the accommodating groove 2116, so as to further improve the sealing effect between the first half-shell 211 and the heating member 22.

Further, as shown in fig. 3 to 5 or fig. 12 to 14, the housing 21 further includes a fourth sealing member 28, and the fourth sealing member 28 is interposed at a position where the second half shell 212 is combined with the heating member 22. Specifically, the fourth sealing member 28 seals the joint position of the second half-shell 212 and the heating element 22, so as to prevent the second chamber from communicating with the outside and causing leakage.

It should be noted that the fourth sealing element 28 is a rubber ring or a silicone ring, etc., a limiting groove 2123 is provided on the second half-shell 212, and a part of the fourth sealing element 28 is disposed in the limiting groove 2123, so as to further improve the sealing effect between the second half-shell 212 and the heating element 22.

As shown in fig. 3 to 11, in some embodiments of the present invention, the first and second chambers are separated by the substrate 222, and the connection passages 2222 are provided on the substrate 222. Specifically, the inside of the housing 21 is partitioned by the substrate 222, and the substrate 222 is respectively matched with the first half-shell 211 and the second half-shell 212 of the housing 21, the substrate 222 forms a first chamber with the first half-shell 211 of the housing 21, the substrate 222 forms a second chamber with the second half-shell 212 of the housing 21, the heating plate 221 is disposed on the substrate 222, and the wiring structure 2221 of the substrate 222 may be disposed inside (provided with a waterproof structure) or outside the housing 21, in the present embodiment, the wiring structure 2221 of the substrate 222 is disposed outside the housing 21.

When the steam generating device 20 is assembled, the first half-shell 211 and the second half-shell 212 are respectively disposed on two opposite sides of the heating element 22 (the third sealing element 27 is disposed between the first half-shell 211 and the heating element 22, and the fourth sealing element 28 is disposed between the second half-shell 212 and the heating element 22), the first connecting structure 2115 of the first half-shell 211 is correspondingly disposed on one side of the fitting structure 2223 on the substrate 222, the second connecting structure 2122 of the second half-shell 212 is correspondingly disposed on the other side of the fitting structure 2223 on the substrate 222, the first connecting structure 2115, the fitting structure 2223 and the second connecting structure 2122 are respectively connected and fixed by fasteners (screws and the like) to achieve the assembly of the shell 21 and the heating element 22, after the assembly is completed, the first cavity formed by the heating element 22 and the first half-shell 211 and the second cavity formed by the heating element 22 and the second half-shell 212 are communicated with each other through the connecting channel 2222 on the substrate 222, the temperature control member 23 is then installed in a detection hole 2112 of the housing 21 (the detection hole 2112 may be disposed on the first half-shell 211 or the second half-shell 212, the second sealing member 26 is disposed inside the housing 21 and sleeved outside the detection end), the fuse 24 is then disposed on the first connection portion 2113 of the housing 21, and finally the connection member 25 is respectively engaged with the first connection portion 2113 of the housing 21 and the second connection portion 2114 of the housing 21 to fix the fuse 24 and the temperature control member 23, and the detection end of the fixed temperature control member 23 abuts against the heating sheet 221 of the heating member 22 (the second sealing member 26 seals and isolates the temperature controller from the inside of the housing 21).

Based on steam generation device 20 among this embodiment, improved steam generation device 20's thermal efficiency to make steam generation device 20 holistic temperature homogeneity better, thereby improved the effect of control by temperature change, when reducing heating member 22 and burning out the risk, improved out vapour temperature, in addition, steam generation device 20 among this embodiment, the volume is less, compact structure, simple to operate.

In addition, in the present embodiment, the first flow guide structure 291 is formed on the first half-shell 211, and the second flow guide structure 292 is formed on the second half-shell 212, when the steam generator 20 is assembled, the first flow guide structure 291 abuts against the first heating surface of the heating sheet 221, and the second flow guide structure 292 abuts against the second heating surface of the heating sheet 221, so that the flow guide effects of the first flow guide structure 291 and the second flow guide structure 292 are ensured.

As shown in fig. 12 to 17, in some embodiments of the present invention, the heating element 22 further includes an inner shell 223 covering the outer side of the heating sheet 221, at least a portion of the inner shell 223 is disposed in the casing 21, the inner shell 223 disposed in the casing 21 is used for partitioning the inside of the casing 21 into a first chamber and a second chamber, and the inner shell 223 disposed in the casing 21 is provided with a connecting channel 2222. Specifically, the heating sheet 221 is wrapped by the inner case 223 to isolate the heating sheet 221 from the first and second chambers, thereby preventing water and/or steam from adversely affecting the heating sheet 221 (forming scale on the surface of the heating sheet 221, etc.).

In addition, the inner shell 223 may be completely disposed in the housing 21, or partially disposed in the housing 21, in this embodiment, the inner shell 223 is partially disposed in the housing 21, another part of the inner shell 223 is disposed outside the housing 21, the heating plate 221 is disposed on the base plate 222, the inner shell 223 disposed on the shell portion of the housing 21 wraps the heating plate 221 and the base plate 222, the base plate 222 extends to the outside of the housing 21 along with the inner shell 223, and the wiring structure 2221 on the base plate 222 is also located outside the housing 21 (to avoid water and/or steam from adversely affecting the wiring structure 2221).

In some examples of the present embodiment, the inner case 223 includes a first case portion 2231 and a second case portion 2232, the first case portion 2231 is provided with a first receiving groove, the second case portion 2232 is provided with a second receiving groove, the second case portion 2232 and the first case portion 2231 are detachably fastened, the first receiving groove and the second receiving groove form a receiving cavity, the wiring structure 2221 is disposed outside the receiving cavity, the heating plate 221 is disposed in the receiving cavity, the first heating surface abuts against an inner wall of the first receiving groove, and the second heating surface abuts against an inner wall of the second receiving groove. Specifically, the inner case 223 is formed by fastening the first case portion 2231 and the second case portion 2232 to each other, wherein, when the inner case 223 is assembled with the substrate 222 having the heating sheet 221, the first case portion 2231 and the second case portion 2232 are respectively disposed on two opposite sides of the substrate 222, the first case portion 2231 and the second case portion 2232 are fastened to each other, so that the first receiving groove and the second receiving groove surround to form a receiving cavity, the heating sheet 221 and a portion of the substrate 222 are disposed in the receiving cavity, the first heating surface of the heating sheet 221 abuts against an inner wall of the first receiving groove, the second heating surface of the heating sheet 221 abuts against an inner wall of the second receiving groove, and the first case portion 2231, the second case portion 2232 and the fitting manner therebetween are disposed, so as to improve convenience of assembling and disassembling the heating member 22 and facilitate maintenance of the steam generating device 20.

It should be noted that, in this embodiment, the first shell portion 2231 is provided with a first connecting body 22311, the second shell portion 2232 is provided with a second connecting body 22321, when the first shell portion 2231 is matched with the second shell portion 2232, the first connecting body 22311 is arranged corresponding to the second connecting body 22321, when the first half-shell 211 of the housing 21 is assembled with the second half-shell 212, the first connecting structure 2115 of the first half-shell 211 is arranged corresponding to the first connecting body 22311, the second connecting structure 2122 of the second half-shell 212 is arranged corresponding to the second connecting body 22321, and the first connecting structure 2115, the first connecting body 22311, the second connecting body 22321 and the second connecting structure 2122 are sequentially connected and fixed by a fastener (a screw, etc.), so as to achieve the assembly of the housing 21 and the heating element 22.

In addition, heat-conducting silicone grease can be filled between the first heating surface and the first accommodating groove and between the second heating surface and the second accommodating groove, and the contact tightness between the heating sheet 221 and the inner shell 223 is improved by the heat-conducting silicone grease, so that the temperature of the heating sheet 221 can be effectively transmitted to the first cavity and the second cavity through the inner shell 223, and the heat efficiency of the steam generating device 20 is further improved.

In addition, a spacing ring 22312 is arranged on the first shell portion 2231, when the temperature control element 23 is mounted, one end of the second sealing element 26 abuts against the inside of the spacing ring 22312, and the other end of the second sealing element 26 abuts against the inner wall of the housing 21 (an accommodating structure may also be arranged on the inner wall), so that the temperature control element 23 is effectively separated from the inside of the housing 21, meanwhile, a clamping groove 22314 is arranged on the first shell portion 2231, a clamping head 2124 is arranged on the second shell portion 2232, and when the first shell portion 2231 is matched with the second shell portion 2232, the clamping head 2124 is clamped into the clamping groove 22314, so as to achieve positioning and mounting of the first shell portion 2231 and the second shell portion 2232.

In this embodiment, the first flow guiding structure 291 is formed on the first shell portion 2231, and the second flow guiding structure 292 is formed on the second shell portion 2232, when the steam generator 20 is assembled, the first flow guiding structure 291 abuts against the inner wall of the first half-shell 211, and the second flow guiding structure 292 abuts against the inner wall of the second half-shell 212, so that the flow guiding effects of the first flow guiding structure 291 and the second flow guiding structure 292 are ensured.

In some examples of the present embodiment, the connecting channel 2222 is respectively formed by connecting a first channel portion 22313 on the first shell portion 2231 and a second channel portion 22322 on the second shell portion 2232, i.e., when the first shell portion 2231 is connected with the second shell portion 2232, the first channel portion 22313 and the second channel portion 22322 together form the connecting channel 2222 to communicate the first chamber with the second chamber.

In some examples of the present embodiment, the heating element 22 further includes a first sealing member 224, a receiving structure 22323 is disposed on the second casing portion 2232, the receiving structure 22323 is disposed around a circumferential direction of the second channel portion 22322, a partial structure of the first sealing member 224 is disposed in the receiving structure 22323, and when the first casing portion 2231 is mated with the second casing portion 2232, the first sealing member 224 is clamped at a joint position of the first channel portion 22313 and the second channel portion 22322, so that a sealing property of a joint position of the two is ensured, and water and/or steam is prevented from entering into the receiving cavity, so as to avoid an adverse effect on the heating sheet 221.

It should be noted that the first sealing member 224 is a sealing ring, which is a flexible structural member, and may be a rubber ring or a silicone ring, so as to further improve the sealing effect on the first casing portion 2231 and the second casing portion 2232.

In some examples of the present embodiment, the first and

second shell portions

2231 and 2232 of the inner shell 223 are each a material having high thermal conductivity, so that the heat transfer rate of the heat patch 221 can be effectively increased to further increase the thermal efficiency of the steam generating device 20.

The first casing portion 2231 and the second casing portion 2232 may be made of copper, aluminum, or the like, and in this embodiment, the first casing portion 2231 and the second casing portion 2232 are made of aluminum, so that the manufacturing cost of the steam generator 20 can be effectively reduced.

In addition, in some examples of the present embodiment, the first half-shell 211 and the second half-shell 212 of the housing 21 are made of a material with low thermal conductivity, so as to avoid heat conduction with the outside and further improve the thermal efficiency of the steam generator 20.

In the embodiment, the first half-shell 211 and the second half-shell 212 may be made of ceramic or high temperature resistant plastic, and in the embodiment, the first half-shell 211 and the second half-shell 212 are made of ceramic, so as to reduce heat loss of the steam generating device 20, and further improve the thermal efficiency of the steam generating device 20.

As shown in fig. 1 to 17, the present invention further provides a household appliance 100, the household appliance 100 includes a housing 10 and a steam generating device 20 as above, the housing 10 includes a water tank 11, the water tank 11 is used for storing purified water, and the steam generating device 20 is disposed on the housing 10 and is communicated with the water tank 11.

Specifically, when the steam generating device 20 provides steam for the household appliance 100, the water tank 11 of the household appliance 100 injects purified water into the first chamber through the water inlet 2111, the temperature of the purified water entering the first chamber is increased by the heating element 22, so as to form steam, the formed steam enters the second chamber through the connecting channel 2222, the steam entering the second chamber flows in the direction of the steam outlet 2121, the heating element 22 continues to heat the steam during the flowing process, and the steam is discharged after reaching the steam outlet 2121 and is delivered to a position required by the household appliance 100.

In addition, the machine body 10 further includes a driving member, which may be a water pump or other mechanism, the driving member is disposed on a pipeline connecting the water tank 11 and the steam generating device 20, or disposed in the water tank 11, and the purified water in the water tank 11 is injected into the first cavity of the steam generating device 20 by driving of the driving member, so as to ensure the supply amount of the purified water in the steam generating process, and further ensure the effectiveness of the steam generating device 20 in generating steam.

In the present invention, the household appliance 100 may be a steam mop or a cooking appliance with steam function (such as a steam box or a steam oven), etc., and the above embodiments and the drawings of the specification of the present invention are described by taking the household appliance 100 as the steam mop as an example, wherein please refer to the prior art for other structures of the steam mop, and the description of the present invention is omitted here for brevity.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A steam generating device, characterized in that the steam generating device comprises:

2. A steam generating device as claimed in claim 1, wherein the heating element comprises a heating sheet disposed within the housing, a first heating surface of the heating sheet being arranged to heat the first chamber and a second heating surface of the heating sheet being arranged to heat the second chamber.

3. The steam generating apparatus according to claim 2, wherein the heating member further includes a base plate having a wiring structure, the heating sheet being provided on the base plate, the wiring structure being provided with a waterproof structure and being provided inside the housing, or the wiring structure being located outside the housing.

4. A steam generating device according to claim 3, wherein the first and second chambers are separated by the base plate and the connecting channel is provided on the base plate.

5. The steam generating device as claimed in claim 3, wherein the heating element further includes an inner shell covering an outer side of the heating sheet, at least a portion of the inner shell is disposed in the housing, the inner shell located in the housing partitions an interior of the housing to form the first chamber and the second chamber, and the inner shell located in the housing is provided with the connecting passage.

6. The steam generating apparatus of claim 5, wherein the inner shell comprises:

the first shell part is provided with a first accommodating groove;

7. The steam generating device as claimed in claim 6, wherein the first housing portion has a first passage portion formed therein, the second housing portion has a second passage portion formed therein, and when the first housing portion is engaged with the second housing portion, the first passage portion and the second passage portion are communicated with each other to constitute the connection passage.

8. The steam generating apparatus according to claim 7, wherein the heating element further includes a first sealing member interposed at a joining position of the first passage portion and the second passage portion.

9. The steam generating device of claim 1, further comprising:

10. A steam generating device according to any one of claims 1 to 9, wherein the housing comprises a first half shell and a second half shell, the first half shell and the second half shell engaging opposite sides of the heating element respectively, the water inlet being provided on the first half shell and the steam outlet being provided on the second half shell, or the water inlet being provided on the second half shell, the steam outlet being provided on the first half shell.

11. A steam generating device according to claim 10, wherein a first flow directing structure is provided in the first chamber, the first flow directing structure being provided in the first half shell or the first flow directing structure being provided on the heating element;

12. A household appliance, characterized in that it comprises:

a machine body including a water tank for storing purified water;

the steam generator according to any one of claims 1 to 11, provided in the body and communicating with the water tank.