DE112016005701B4 - steam generator, steam generator system and household appliance - Google Patents

Abstract

Steam generator (100), comprising:a housing (1), wherein at least two spaced-apart chambers are formed in the housing (1), the at least two chambers are connected to one another via a connection (21), and two chambers of the at least two chambers are each provided with a water inlet (13) and a steam outlet (14), respectively;a heating element (3) formed in the housing (1), which is used for heating and evaporating water to steam in the housing (1); anda flow channel formed in the housing (1) which extends from the water inlet (13) to the steam outlet (14) via the at least two chambers,wherein a first chamber (11) and a second chamber (12) are formed in the housing (1) via a partition wall (2), at least one connection (21) is provided in the partition wall (2) to bring the first chamber (11) into fluid communication with the second chamber (12), wherein the water inlet (13) is connected to the first chamber (11), the steam outlet (14) is connected to the second chamber (12) and the heating element (3) is provided on the partition wall (2) to heat the first chamber (11) and the second chamber (12), wherein the partition wall (2) is formed as an annular part so that the first chamber (11) surrounds the second chamber (12), characterized in that the flow channel comprises a partial flow channel, wherein at least one Partial flow channel is formed between the first chamber (11) and the second chamber (12), wherein a barrier wall (5) is provided in the at least one partial flow channel to block the flow direction of the fluid, and wherein the barrier wall (5) is provided adjacent to the connection (21).

Description

TECHNICAL FIELD

The present disclosure relates to the technical field of household appliances, and more particularly to a steam generator, a steam generating system and a household appliance.

TECHNICAL BACKGROUND

Existing steam generators with boilers have a large volume and are impractical when adding water. US 8 554 063 B2 (cf. 1 ) discloses a steam generator comprising a housing 1 and a heating unit 2, wherein the housing 1 comprises a chamber 11 and a water inlet 12 connected to the chamber 11.
JP 2008- 32 262 A shows a steam generating device for accurately detecting a water level in an evaporation vessel.
DE 692 08 532 T2 shows a steam generator which can detect its water level. WO 88/ 00 316 A1 shows a steam generator which comprises a container with an inlet for water and an outlet for steam, a heating element for heating the water for boiling and a control unit for supplying water.

SUMMARY OF THE INVENTION

The present disclosure seeks to solve, at least to some extent, one of the problems present in the prior art. To this end, the present invention provides a steam generator of small dimensions to which water can be added in a simple manner.

The present invention further provides a steam generating system having the steam generator described above.

The present invention also provides a household appliance having the steam generating system described above.

The steam generator according to the embodiments of the present invention comprises: a housing, wherein at least two spaced-apart chambers are formed in the housing, wherein the at least two chambers are connected to each other via a connecting groove or channel, and two chambers of the at least two chambers are each provided with a water inlet and a steam outlet, respectively; a heating element formed in the housing, which is used for heating and evaporating water to steam in the housing; and a flow channel formed in the housing and extending from the water inlet to the steam outlet across the at least two chambers, wherein a first chamber and a second chamber are formed in the housing via a partition wall, at least one connecting groove is provided in the partition wall to bring the first chamber into fluid communication with the second chamber, wherein the water inlet is in communication with the first chamber, the steam outlet is in communication with the second chamber, and the heating element is provided on the partition wall to heat the first chamber and the second chamber, wherein the partition wall is formed as an annular part so that the first chamber surrounds the second chamber, wherein the flow channel comprises a partial flow channel, at least one partial flow channel is formed between the first chamber and the second chamber, a barrier wall is provided in the at least one partial flow channel to block the flow direction of the fluid, and a barrier wall is provided adjacent to the connecting groove.

The steam generator according to the embodiments of the present invention has at least two spaced-apart chambers in the housing, the at least two chambers are connected to the water inlet and the steam outlet, respectively, thus the steam can be expelled from the chamber connected to the steam outlet, water can be easily added to the chamber connected to the water inlet via the water inlet, furthermore, compared to an existing steam generator with a boiler and large dimensions, the steam generator of the present invention has a smaller size, the installation of the steam generator together with the steam generation system in household appliances enables the household appliances to be downsized.

According to some embodiments of the present invention, a first chamber, a second chamber and a third chamber are formed in the housing, the third chamber and the second chamber are provided side by side in the housing, the first chamber is defined by the side walls of the third chamber and the second chamber and an inner side wall of the housing, the first chamber is connected to the third chamber via a first connecting groove, and the third chamber is connected to the second chamber via a second connecting groove.

Furthermore, the heating element is provided on side walls of the third chamber and the second chamber to heat the first chamber, the second chamber and the third chamber.

According to some embodiments of the present invention, the water inlet is in communication with the first chamber and the steam outlet is in communication with the second chamber.

Further, the partition wall is formed as a plate-shaped piece to separate the first chamber and the second chamber and to arrange the first chamber and the second chamber side by side in a left and right side.

Further, the first chamber is provided with the barrier wall for blocking the flow direction of the fluid, and the barrier wall is provided adjacent to the connecting groove.

Furthermore, the water inlet is arranged on a side of the barrier wall facing away from the connecting groove.

Furthermore, the steam generator has a first water inlet pipe which is connected to the water inlet and a water outlet end of the first water inlet pipe which projects into the first chamber.

Furthermore, the water inlet and the connecting groove are on the same side of the barrier wall.

Furthermore, the steam generator has a second water inlet pipe which is in communication with the water inlet, a free end of the second water inlet pipe extends from a side of the barrier wall adjacent to the connecting groove to the other side of the barrier wall after circling the partition wall in a circumferential direction.

Furthermore, the second water inlet pipe has a plurality of spaced-apart first water outlet openings.

Furthermore, the free end of the second water inlet pipe is designed as a water outlet end.

Furthermore, the steam generator has a third water inlet pipe connected to the water inlet, and a water outlet end of the third water inlet pipe extends, after passing through the barrier wall, in a side of the first chamber facing away from the connecting groove.

Furthermore, the steam generator has a fourth water inlet pipe connected to the water inlet, a free end of the fourth water inlet pipe is closed, the fourth water inlet pipe penetrates the barrier wall and extends in a circumferential direction of the partition wall, and has a plurality of second water outlet openings spaced apart from one another in the longitudinal direction of the fourth water inlet pipe.

Furthermore, the steam generated in the first chamber forms a steam cyclone air flow after entering the second chamber via the connecting groove.

Furthermore, the extension direction of the connecting groove is tangential to an inner peripheral wall surface of the second chamber, so that the steam generated in the first chamber enters the second chamber tangentially.

Furthermore, the connecting groove is formed in an upper part of the partition wall and is adjacent to an upper wall of the housing.

Furthermore, the heating element has an electrical connection, and the electrical connection is integrated into the barrier wall and is accessible via a through hole in a side wall of the housing corresponding to the barrier wall.

Furthermore, the heating element heats the second chamber and the first chamber simultaneously.

Furthermore, the heating element is integrated in an interior space of the partition wall, an interior wall surface or an exterior wall surface of the partition wall.

Furthermore, the heating element is provided helically in a circumferential direction of the partition wall and in the partition wall.

According to some embodiments of the present invention, the housing comprises a base and a cover used to seal the base, wherein the water inlet and the steam outlet are both provided in the cover.

According to some embodiments of the present invention, the steam generator further comprises at least one temperature controller provided on an outer surface of the housing, and the temperature controller controls the activation and deactivation of the heating element according to a housing temperature.

According to some embodiments of the present invention, the steam generator further comprises at least one fuse. Each fuse has a second temperature sensor. The fuse is provided on an outer surface of the housing so that the second temperature sensor detects a temperature of the housing. If the second temperature sensor detects a temperature of the housing greater than a predetermined value, the fuse switches off the heating element.

The steam generating system according to the embodiments of the present invention includes a steam generator described above, a water tank, and a water pump that continuously pumps the water from the water tank into the housing.

The steam generating system according to the embodiments of the present invention has a small size by providing the steam generator described above, and water can be easily added to the steam generator, thus downsizing of household appliances can be achieved when the steam generating system is used.

The household appliance according to the embodiments of the present invention comprises a steam generator system as described above.

In the household appliances according to the embodiments of the present invention, the downsizing of the household appliances is achieved by providing the steam generating system described above.

In some embodiments of the present invention, the household appliance is designed as a vacuum cleaner, a clothing steamer, an extractor hood, a coffee machine, a washing machine, an air conditioner or a microwave oven.

character list

• 1 ist eine schematische Ansicht eines Dampferzeugers gemäß einigen Ausführungsformen der vorliegenden Erfindung;
• 2 ist eine Draufsicht des in 1 gezeigten Dampferzeugers;
• 3 ist eine Schnittansicht des in 2 gezeigten Dampferzeugers entlang der Linie A-A;
• 4 ist eine Schnittansicht des in 3 gezeigten Dampferzeugers entlang der Linie A-A, wobei ein elastisches Element und ein Dichtungselement aus dem Dampferzeuger entfernt wurden;
• 5 ist eine Schnittansicht des in 2 gezeigten Dampferzeugers entlang der Linie B-B;
• 6 ist eine schematische Explosionsansicht eines Dampferzeugers gemäß anderen Ausführungsformen der vorliegenden Erfindung;
• 7 ist eine schematische Ansicht eines Dampferzeugers gemäß weiteren anderen Ausführungsformen der vorliegenden Erfindung;
• 8 ist eine schematische Teilansicht des Dampferzeugers gemäß anderen Ausführungsformen der vorliegenden Erfindung;
• 9 ist eine Draufsicht des in 7 gezeigten Dampferzeugers;
• 10 ist eine Schnittansicht des in 9 gezeigten Dampferzeugers entlang der Linie C-C;
• 11 ist eine schematische Teilansicht des in 7 gezeigten Dampferzeugers, bei der eine Abdeckung von dem Dampferzeuger entfernt wurde;
• 12 ist eine Draufsicht des in 11 gezeigten Dampferzeugers;
• 13 ist eine schematische Teilansicht des Dampferzeugers gemäß weiteren anderer Ausführungsformen der vorliegenden Erfindung, bei der eine Abdeckung von dem Dampferzeuger entfernt wurde;
• 14 ist eine schematische Teilansicht des in 13 gezeigten Dampferzeugers, bei dem eine Kalkaufnahmestruktur entfernt wurde;
• 15 ist eine schematische Ansicht einer Fluidströmungsrichtung in dem in 13 gezeigten Dampferzeugers;
• 16 ist eine Draufsicht auf den Dampferzeuger gemäß anderen Ausführungsformen der vorliegenden Erfindung;
• 17 ist eine Schnittansicht des in 16 gezeigten Dampferzeugers entlang der Linie D-D;
• 18 ist eine schematische Ansicht des in 16 gezeigten Dampferzeugers, bei der eine Abdeckung aus dem Dampferzeuger entfernt wurde;
• 19 ist eine schematische Ansicht eines Dampferzeugersystems gemäß Ausführungsformen der vorliegenden Erfindung;
• 20 ist eine schematische Ansicht eines Dampferzeugers gemäß anderen Ausführungsformen der vorliegenden Erfindung;
• 21 ist eine schematische Ansicht eines Dampferzeugers gemäß weiteren anderen Ausführungsformen der vorliegenden Erfindung.

These and/or other aspects and advantages of embodiments of the present disclosure will become more apparent and more easily understood from the following descriptions made with reference to the figures in which:

• 1 is a schematic view of a steam generator according to some embodiments of the present invention;
• 2 is a top view of the 1 steam generator shown;
• 3 is a sectional view of the 2 steam generator shown along line AA;
• 4 is a sectional view of the 3 shown steam generator along the line AA, with an elastic element and a sealing element removed from the steam generator;
• 5 is a sectional view of the 2 shown steam generator along the line BB;
• 6 is a schematic exploded view of a steam generator according to other embodiments of the present invention;
• 7 is a schematic view of a steam generator according to further other embodiments of the present invention;
• 8 is a partial schematic view of the steam generator according to other embodiments of the present invention;
• 9 is a top view of the 7 steam generator shown;
• 10 is a sectional view of the 9 shown steam generator along the line CC;
• 11 is a schematic partial view of the 7 steam generator shown with a cover removed from the steam generator;
• 12 is a top view of the 11 steam generator shown;
• 13 is a schematic partial view of the steam generator according to further other embodiments of the present invention with a cover removed from the steam generator;
• 14 is a schematic partial view of the 13 shown steam generator, in which a lime absorption structure was removed;
• 15 is a schematic view of a fluid flow direction in the 13 steam generator shown;
• 16 is a plan view of the steam generator according to other embodiments of the present invention;
• 17 is a sectional view of the 16 shown steam generator along the line DD;
• 18 is a schematic view of the 16 steam generator shown with a cover removed from the steam generator;
• 19 is a schematic view of a steam generator system according to embodiments of the present invention;
• 20 is a schematic view of a steam generator according to other embodiments of the present invention;
• 21 is a schematic view of a steam generator according to further other embodiments of the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, embodiments of the present disclosure will be described in detail, and examples of the embodiments are illustrated in the drawings. The embodiments described herein refer to the drawings to further explain, illustrate, and clarify the present disclosure. The embodiments are not intended to limit the present disclosure.

In describing the present disclosure, it should be understood that the terms "central," "length," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "radial," "circumferential," etc., are construed to refer to the orientation as subsequently described or as shown or discussed in the figures. These relative terms are for convenience and ease of description and are not limiting or imply that the device or element in question must have a particular orientation or be constructed or operated in a particular orientation. Therefore, these relative terms should not be construed to limit the present disclosure.

A steam generator 100 according to embodiments of the present invention will be described below with reference to 1 until 21 The steam generator 100 can be used in a steam generation system 1000 and in household appliances with the steam generation system 1000, such as a vacuum cleaner, a clothing steamer, a range hood, a coffee machine, a washing machine, an air conditioner or a microwave oven, etc., and is used to generate steam.

The steam generator 100 according to embodiments of the present invention may include a housing 1 and a heating element 3 formed in the housing 1. The heating element 3 may heat water in the housing 1 and evaporate the water into steam for use in the household appliance.

The housing 1 is provided with a sealed chamber, namely at least two spaced-apart chambers are formed in the housing 1. The heating element 3 can heat the at least two chambers, and the at least two chambers are connected to each other via a connecting groove 21, so that it is easy for the steam in one chamber to pass into another chamber via the connecting groove 21.

Two chambers thereof are respectively provided with a water inlet 13 and a steam outlet 14. For example, if two chambers are formed in the housing 1, one chamber is connected to the water inlet 13 and the other chamber is connected to the steam outlet 14. Thus, during use of the steam generator 100, the steam can escape from the chamber connected to the steam outlet 14 via the steam outlet 14 with the heating of the heating element 3. Meanwhile, the water can be added to the chamber connected to the water inlet 13 via the water inlet 13. The problem of inconvenience for adding water in existing boiler-type steam generators is solved. Furthermore, the steam generator according to the invention has a smaller volume compared to existing steam generators with large dimensions, so that the steam generator 100 in the household appliances together with the steam generation system 1000 enables a downsizing of the household appliances.

A flow channel is provided in the housing 1, which extends from the water inlet 13 via the at least two chambers to the steam outlet 14. For example, if two chambers are defined in the housing 1, one chamber communicates with the water inlet 13, the other chamber communicates with the steam outlet 14, and the flow channel extends from the water inlet to the steam outlet, via the chamber communicating with the water inlet, with the connecting groove between the two chambers and the chamber communicating with the steam outlet. After the heating element 3 heats the water in the chamber connected to the water inlet 13 to evaporate the water into steam, the steam can simply flow unidirectionally through the flow channel to the steam outlet 14 and subsequently escape via the steam outlet 14.

It is understood that when the steam flows in the flow channel, the steam in the flow channel can be further heated by heat of the heating element 3 (for example, the heating element 3 is provided on one side to heat the at least two chambers), so that the heat exchange area between the heating element 3 and the steam increases, which improves the dryness and the temperature of the steam in a simple manner.

In the steam generator 100 according to the embodiments of the present invention, at least two spaced-apart chambers are formed in the housing 1, wherein the at least two chambers are connected via the connecting groove 21 are connected to each other and the water inlet 13 and the steam outlet 14 are each connected to a chamber of the at least two chambers, so that when the steam flows out of the chamber connected to the steam outlet 14, water can be easily added via the water inlet 13 into the chamber connected to the water inlet 13, furthermore, compared with the existing steam generators with boilers, the steam generator 100 according to the present invention has a smaller size, when the steam generator 100 is installed together with the steam generation system 1000 in the household appliances, a downsizing of the household appliances is achieved.

According to some embodiments of the present invention, as in 21 , a first chamber 11, a second chamber 12 and a third chamber 17 are formed in the housing 1, the third chamber 17 and the second chamber 12 are provided side by side in the housing 1, and the first chamber 11 is defined between side walls of the third chamber 17 and the second chamber 12 and an inner side wall of the housing 1. The first chamber 11 communicates with the third chamber 17 via a first communication groove 211, the third chamber 17 communicates with the second chamber 12 via a second communication groove 212, which is simply constructed. Specifically, the heating element 3 is provided on the side walls of the third chamber 17 and the second chamber 12 to heat the first chamber 11, the second chamber 12 and the third chamber 17. For example, two heating elements 3 are provided, and the two heating elements 3 surround the third chamber 17 and the second chamber 12, respectively, and are provided on the side walls of the third chamber 17 and the second chamber 12, respectively, so that it is easy for the heating elements 3 to heat the first chamber 11, the second chamber 12, and the third chamber 17 to quickly evaporate the water in the casing 1 into steam. When the steam flows in the flow channel, it is easy for the heating elements 3 to further heat the steam, which improves the temperature and dryness of the steam at the steam outlet 14.

Further, the water inlet 13 communicates with the first chamber 11 and the steam outlet 14 communicates with the second chamber 12, so that the flow channel extends from the water inlet 13 to the steam outlet 14 via the first chamber 11, the first connecting groove 211, the third chamber 17, the second connecting groove 212 and the second chamber 12 sequentially, thereby facilitating the extension of the flow channel, so that the heating element 3 can continuously heat the steam in the flow channel to improve the dryness and the temperature of the steam at the steam outlet 14.

According to some embodiments of the present invention, as set forth in the 3 , 4 , 6 , 8 , 10 until 15 and 20 As shown, a first chamber 11 and a second chamber 12 are formed in the housing 1, which are separated from each other by a partition wall 2. Thus, the partition wall 2 in the housing 1 makes it possible to increase the inner surface of the housing 1 so that more lime can adhere to this place, a reduction in energy efficiency and even damage to the steam generator 100, which can result from the excessive lime deposits, can be avoided to some extent and the service life of the steam generator 100 can be extended.

The partition wall 2 is provided with at least one connecting groove 21 which brings the first chamber 11 into fluid communication with the second chamber 12. The heating element 3 comprises an electrical connection 31 and the electrical connection 31 of the heating element 3 is accessible via a through hole formed in the housing 1.

The housing 1 is provided with the water inlet 13 and the steam outlet 14, the water inlet 13 being connected to the first chamber 11 and the steam outlet 14 being connected to the second chamber 12. This creates a spaced-apart arrangement of the second chamber 12 and the first chamber 11 in the housing 1, the water inlet 13 being directly connected to the first chamber 11 and the steam outlet 14 being directly connected to the second chamber 12. When the steam generator 100 is in operation, the water can be continuously added to the first chamber 11 via the water inlet 13, while the steam outlet 14, in connection with the second chamber 12, continuously releases the steam, thereby solving the problem of existing steam generators with boilers that the water cannot be easily added. Furthermore, the steam generator 100 according to the invention has small dimensions compared to the existing steam generator with boiler, whereby the steam generator 100 in the household appliances together with the steam generation system 1000 enables a reduction in the size of the household appliance. Optionally, the water inlet 13 can be provided at any position of an upper wall of the housing 1 corresponding to the first chamber 11.

The heating element 3 is provided in the partition wall 2 to heat the second chamber 12 and the first chamber 11. In particular, by providing the heating element 3 on the partition wall 2, the thermal energy generated by the heating element 3 can be quickly released to the fluid in the second chamber 12 and the first chamber 11 first, a liquid fluid can be quickly evaporated into a vapor fluid after being heated to improve the utilization rate of electric energy, and the heating element 3 can be prevented from locally overheating. For example, the heating element 3 may be embedded in an interior of the partition wall 2, an inner wall surface, or an outer wall surface of the partition wall 2 to facilitate heating of the second chamber 12 and the first chamber 11. Optionally, the heating element 3 may be embedded in the interior of the partition wall 2 based on a casting method, or may be fixedly provided on the inner wall surface or the outer wall surface of the partition wall 2 to facilitate heating of the second chamber 12 and the first chamber 11. Of course, the present invention is not limited to this. The heating element 3 can also be provided at other positions of the housing 1, such as in the second chamber 12 or in the first chamber 11, or the heating element 3 can be embedded in any position of the housing 1 by a casting process. It is understood that the partition wall 2 provided in the housing 1 has a heat-conducting effect.

Specifically, the water entering the first chamber 11 via the water inlet 13 is evaporated under the heating of the heating element 3. When steam or a mixed fluid of water droplets and steam enters the second chamber 12 from the first chamber 11 via the connecting groove 21, the heating element 3 simultaneously influences the second chamber 12 to dry the steam entering the second chamber 12 and then discharge it via the steam outlet 14. It is understood that in the heating process of the heating element 3, the water can be continuously added to the first chamber 11. Thus, by disposing the heating element 3 in the partition wall 2, it is possible to cause the heating element 3 to heat the second chamber 12 and the first chamber 11, and by continuously supplying water into the first chamber 11 via the water inlet 13, it is easy for the steam to continuously exit from the steam outlet 14, thereby not only improving the utilization rate of the heating element 3 but also shortening the preheating time of the steam generator 100, whereby the steam generator 100 continuously generates steam at a high temperature and with a high dryness.

As in 20 As shown, the partition wall 2 is formed as a plate-shaped piece to separate the first chamber 11 and the second chamber 12 and to arrange the first chamber 11 and the second chamber 12 side by side in a left and a right side. Of course, the present invention is not limited to this. The partition wall 2 may also be formed as an annular part so that the first chamber 11 surrounds the second chamber 12. For example, the partition wall 2 is formed as a ring or a square ring.

More precisely, as in 1 , 3 and 5 until 7 the housing 1 has a base 15 and a cover 16 for sealing the base 15, in the cover 16 both the water inlet 13 and the steam outlet 14 are provided.

Furthermore, the partition wall 2 is provided in the base 15 to define the first chamber 11 and the second chamber 12 to facilitate the arrangement of the heating element 3 and the partition wall 2, etc. in the housing 1. Of course, the invention is not limited to this. The water inlet 13 and the steam outlet 14 can also be provided in other possible locations, for example, the water inlet 13 and the steam outlet 14 are provided in the base 15 or the water inlet 13 and the steam outlet 14 are provided in the base 15 and in the cover 16, respectively, or other possible arrangement positions are provided which are capable of achieving equivalent effects described above.

Optionally, the cover 16 is sealingly connected to the base 15 by a fastening element, such as a bolt. Furthermore, as in 6 , a bottom wall of the cover 16 may be provided with a rib 162 and an upper wall of the partition wall 2 may be provided with a substantially annular groove 22. When the cover 16 covers the base 15, the rib 162 is fitted to the groove 22, and meanwhile, the cover 16 is further connected to the base 15 by the fastening member, which further improves the sealing performance of the connection between the cover 16 and the base 15.

It is understood that the top wall of the housing 1 is designed as a lid 16, a side wall of the housing 1 is designed as a side wall of the base 15 and a bottom wall of the housing 1 is designed as a lower wall of the base 15.

In some embodiments of the present invention, the flow channel comprises a partial flow channel, wherein at least one partial flow channel is defined between the first chamber and the second chamber and a blocking wall 5 is provided in the at least one partial flow channel for blocking the flow direction of the fluid and adjoins the connecting groove. Furthermore, the first chamber 11 provided with a barrier wall 5 for blocking the flow direction of the fluid in the first chamber 11, and the barrier wall 5 is provided adjacent to the communication groove 21. Thus, the first chamber 11 is designed as a partial flow channel for guiding the flow of the steam, which is simple and reliable. The barrier wall 5 is provided in the first chamber 11 to form the first chamber 11 as a C-shaped body. For example, when the casing 1 of the steam generator 100 is formed as a substantially uniform body such as a cube, a cylinder, a sphere or an ellipsoid, etc., the barrier wall 5 is provided in the first chamber 11, the first chamber 11 has a substantially C-shaped cross section. When the casing 1 of the steam generator 100 is formed as an irregular body, the barrier wall 5 is provided in the first chamber 11 to provide the first chamber 11 with a substantially C-shaped cross section with the same effect.

Optionally, the barrier wall 5 can be formed integrally in the side wall of the housing 1. In particular, four end walls of the barrier wall 5 are connected to the housing 1 or the partition wall 2 and formed in one piece. For example, a part of the side wall of the housing 1 is recessed into the first chamber 11 inwardly around a center of the housing 1 to form the barrier wall 5. Of course, the present invention is not limited to this. The barrier wall 5 and the housing 1 can also be two separately formed structures, for example, the barrier wall 5 is welded in the first chamber 11.

As in the 5 and 18 , the barrier wall 5 comprises a first end wall 51, a second end wall 52, a third end wall 53 and a fourth end wall 54. In which the first end wall 51 is integrally connected to the bottom portion of the housing 1 (ie, the bottom portion of the base 15), the second end wall 52 is integrally connected to the side wall of the housing 1 (ie, the side wall of the base 15), the third end wall 53 is integrally connected to the outer side wall of the partition wall 2 and the fourth end wall 54 is the upper wall of the barrier wall 5. The fourth end wall 54 is provided with a sealing groove 55 which is connected to the above-described groove 22 of the upper part of the partition wall 2, an inner top wall of the housing 1 (ie, a bottom wall of the lid 16) is provided with a raised line 163 which is connected to the above-described rib 162. When the cover 16 covers the base 15, the rib 162 is fitted into the groove 22 and the raised line 163 is embedded in the sealing groove 55 to cause the barrier wall 5 to block the flow direction of the fluid as well as the vapor in the first chamber 11.

Further, the electrical terminal 31 of the heating element 3 is embedded in the barrier wall 5 and exposed through the through hole in the side wall of the housing 1 corresponding to the barrier wall 5. More specifically, when the barrier wall 5 is integrally formed with the housing 1 and the partition wall 2, the intended electrical terminal 31 of the heating element 3 integrated in the partition wall 2 is embedded in the barrier wall 5 and the side wall of the housing 1 corresponding to the barrier wall 5 is provided with the through hole so that the electrical terminal 31 passes through the through hole and is exposed to the outside for electrical connection. Thus, the terminal of the heating element 3 is intelligently embedded in the simply constructed barrier wall 5 and avoids a complicated arrangement of electrical wires in the housing 1.

Optionally, the housing 1 and the partition wall 2 and the barrier wall 5 formed in the housing 1 may all be made of cast aluminum pieces.

Furthermore, the water inlet 13 is located on a side of the barrier wall 5 facing away from the connecting groove 21, ie the water inlet 13 and the connecting groove 21 are located on two sides of the barrier wall 5. Thus, as in 15 described, the water flowing into the first chamber 11 via the water inlet 13 evaporates into the steam with low dryness under a heating effect of the heating element 3. Due to the effect of the barrier wall 5, the steam flows along the first chamber 11 and in a circle on the outer peripheral wall of the partition wall 2 to the connecting groove 21 and enters the second chamber 12 via the connecting groove 21. The steam is further heated and dried after entering the second chamber 12 and is converted into dry steam and is discharged via the steam outlet 14. During the process, an area where the steam contacts the inner and outer surfaces of the partition wall 2 and the inner surface of the casing 1 is increased, and the heating element 3 provided in the partition wall 2 can be protected from local overheating, which enables the extension of the service life of the partition wall 2 and the service life of the heating element 3, the improvement of the heating effect of the heating element 3 while shortening the preheating time of the steam generator 100, and the improvement of the dryness of the steam.

More specifically, the steam generator 100 includes a first water inlet pipe 61 communicating with the water inlet 13, and a water outlet end of the first water inlet pipe 61 extends into the first chamber 11. For example, as shown in 15 As shown, the water outlet end of the first water inlet pipe 61 downward into the first chamber 11. Thus, the water outlet end of the first water inlet pipe 61 and the connecting groove 21 are located on two sides of the barrier wall 5, that is, the water flows from the water outlet end of the first water inlet pipe 61 into the first chamber 11 and is converted into steam with low dryness after being heated by the heating element 3, and the steam needs to flow in a circle around the partition wall 2 to enter the second chamber 12 via the connecting groove 21. During the process, an area where the steam contacts the inner and outer surfaces of the partition wall 2 and the inner surface of the casing 1 is increased, and the heating element 3 provided in the partition wall 2 can be protected from local overheating, which prolongs the life of the partition wall 2 and the life of the heating element 3 and improves the heating effect of the heating element 3, and at the same time further shortens the preheating time of the steam generator 100, as well as improves the dryness of the steam.

In other embodiments of the present invention, the water inlet 13 and the connecting groove 21 are arranged on the same side of the barrier wall 5.

More precisely, as in the 8 , 11 and 12 , the steam generator 100 comprises a second water inlet pipe 62 communicating with the water inlet 13, and a free end of the second water inlet pipe 62 extends from one side of the barrier wall 5 adjacent to the connecting groove 21 to the other side of the barrier wall 5 after circumferentially circling the partition wall 2. Thus, after the water entering the first chamber 11 from the second water inlet pipe 62 is converted into the steam under the heating effect of the heating element 3, at least a part of the steam in the first chamber 11 must flow in a circle around the partition wall 2 in the circumferential direction to enter the second chamber 12 via the connecting groove 21. During the process, an area where the steam contacts the inner and outer surfaces of the partition wall 2 and the inner surface of the casing 1 is increased, and the heating element 3 provided in the partition wall 2 can be protected from local overheating, which has the effect of extending the life of the partition wall 2 and the life of the heating element 3 and enables the improvement of the heating effect of the heating element 3 while further shortening the preheating time of the steam generator 100 and improving the dryness of the steam.

Of course, the present invention is not limited to this. The water inlet pipe may also be formed in other shapes, for example, a water inlet of the water inlet pipe is connected to the water inlet 13, and the other end of the water inlet pipe is provided with a plurality of turns around the partition wall 2 in the circumferential direction. Or the other end of the water inlet pipe may also be wound spirally around the partition wall 2 in the circumferential direction.

Optionally, as shown in Fig. 8, the second water inlet pipe 62 may be provided with a plurality of first spaced-apart water outlet openings 621. Thus, the water flowing out from the plurality of first water outlet openings 621 can be injected onto the outer peripheral wall of the partition wall 2 so that a water flow or a water membrane is formed on the outer peripheral wall of the partition wall 2 and flows downward along the outer peripheral wall of the partition wall 2 so that the liquid water has sufficient heat exchange with the heating element 3, furthermore, the steam generated by the water injected through the water outlet openings 621 of the second water inlet pipe 62 facing away from the connecting groove 21 must flow in a circle along the outer peripheral wall of the partition wall 2 to enter the second chamber 12 via the connecting groove 21, thereby improving the heating effect of the heating element 3, shortening the preheating time of the steam generator 100 and at the same time preventing the heating element 3 from locally overheating to extend the service life of the heating element 3. Optionally, the plurality of evenly spaced first water outlet holes 621 are formed in one side of the second water supply pipe 62 adjacent to the partition wall 2. This allows as much water as possible to be sprayed from the first water outlet holes 621 onto the partition wall 2 to promote the heating of the water by the heating element 3. It should be understood that the above-described advantage can be further optimized if the plurality of first water outlet holes 621 of the second water supply pipe 62 are very small and the injected water droplets are nebulized.

In other specific examples of the present invention, the free end of the second water inlet pipe 62 is formed as a water outlet end, so that the water outlet end of the second water inlet pipe 62 is separated from the connecting groove 21 by the barrier wall 5. The water flowing out of the water outlet end of the second water inlet pipe 62 is converted into steam by heating the heating element 3, and the steam is required to flow in a circle around the outer peripheral wall of the partition wall 2 to flow into the second chamber 12 via the connecting groove 21. During the process, an area in which at which the steam comes into contact with the inner and outer surfaces of the partition wall 2 and the inner surface of the housing 1, and the heating element 3 provided in the partition wall 2 can be protected from local overheating, which results in the extension of the service life of the partition wall 2 and the service life of the heating element 3, which leads to an improvement in the heating effect of the heating element 3 and at the same time further shortens the preheating time of the steam generator 100, as well as improves the dryness of the steam. More specifically, as shown in the 8 and 11 , the second water supply pipe 62 has a C-shaped pipe segment 622 and a vertical pipe segment 623 perpendicular to the C-shaped pipe segment 622, and is connected to the water inlet 13, which is simply constructed. Further, the second water supply pipe 62 surrounds the outside of an upper outer wall surface of the partition wall 2, so that at least a part of the water discharged from the second water supply pipe 62 can be injected onto the upper outer wall surface of the partition wall 2 and flow down the partition wall 2, so that the water can fully exchange heat with the heating element 3, which improves the heating effect of the heating element 3 while protecting the heating element 3 from local overheating to some extent. Of course, the present invention is not limited thereto. The second water inlet pipe 62 can also surround other places of the partition wall 2 in the height direction, for example the second water inlet pipe 62 surrounds the outside at a middle height of the outer wall surface or at a lower height of the outer wall surface of the partition wall 2.

In other specific examples of the present invention, the steam generator 100 may also comprise a third water inlet pipe (not shown) in communication with the water inlet 13, wherein a water outlet end of the third water inlet pipe extends into the side of the first chamber 11 facing away from the connecting groove 21 after passing through the barrier wall 5, so that the water outlet end of the third water inlet pipe and the connecting groove 21 are arranged on two sides of the barrier wall 5, so that the water flowing out of the water outlet end of the third water inlet pipe can easily flow into the first chamber 11 and be converted into steam under the heating of the heating element 3, and wherein at least part of the steam in the first chamber 11 must flow in a circle in the circumferential direction around the partition wall 2 in order to enter the second chamber 12 via the connecting groove 21. During the process, an area in which the steam comes into contact with the inner and outer surfaces of the partition wall 2 and the inner surface of the casing 1 is increased, and the heating element 3 provided in the partition wall 2 can be prevented from local overheating, which has the effect of extending the life of the partition wall 2 and the life of the heating element 3, and also improves the heating effect of the heating element 3 while further shortening the preheating time of the steam generator 100 and improving the dryness of the steam. Furthermore, the steam generator 100 also includes a fourth water inlet pipe communicating with the water inlet 13 (not shown), a free end of the fourth water inlet pipe being closed, the fourth water inlet pipe penetrating the barrier wall 5 and extending in the circumferential direction of the partition wall 2, and the fourth water inlet pipe is provided with a plurality of second water outlet openings (not shown) spaced apart from each other in the longitudinal direction of the fourth water inlet pipe. Thus, the water discharged from the plurality of second water outlet holes can be injected onto the outer peripheral wall of the partition wall 2, so that a water flow or water membrane is formed on the outer peripheral wall of the partition wall 2 and flows downward along the outer peripheral wall of the partition wall 2 so that the liquid water has sufficient heat exchange with the heating element 3, further, the steam generated by the water injected through the water outlet holes of the fourth water inlet pipe facing away from the connecting groove 21 must flow in a circle along the outer peripheral wall of the partition wall 2 to enter the second chamber 12 via the connecting groove 21, thereby improving the heating efficiency of the heating element 3, further shortening the preheating time of the steam generator 100, and at the same time protecting the heating element 3 from local overheating to extend the service life of the heating element 3. Optionally, the plurality of evenly spaced second water outlet holes are formed in one side of the fourth water supply pipe adjacent to the partition wall 2, which allows as much water as possible to be sprayed from the second water outlet holes onto the partition wall 2. It is understood that the above-described advantage can be further optimized if the majority of the second water outlet holes of the fourth water supply pipe are very small and atomized water droplets are injected.

According to some embodiments of the present invention, the steam formed in the first chamber 11 forms a steam cyclone air flow after entering the second chamber 12 via the connecting groove 21. In particular, an extension direction of the connecting groove 21 extends tangentially to an inner circumference of the second chamber 12, so that the steam formed in the first chamber 11 formed steam enters tangentially into the second chamber 12 to form the steam cyclone air flow.

Specifically, with the above-described configuration of the connecting groove 21, under the heating of the heating element 3, the steam in the first chamber 11 tangentially enters the second chamber 12 via the connecting groove 21 and forms the cyclonic air flow in the second chamber to bring the steam into contact with the inner wall surface of the second chamber 12, meanwhile, the cyclonic air flow can form an effect of a cyclone separator to carry the liquid water of the steam to the inner wall of the second chamber 12, there it evaporates quickly or flows downward along the inner wall, and the liquid water further forms steam under the heating of the heating element 3. In this way, on the one hand, the inner wall surface of the second chamber 12 can be prevented from local overheating to prolong the service life of the heating element 3, at the same time, the heating effect of the heating element 3 can be improved, the preheating time of the steam generator 100 can be shortened, and the temperature and dryness of the steam at the steam outlet 14 can be improved; on the other hand, the scale contained in the steam is thrown onto the inner wall surface of the second chamber 12 and adheres to the inner wall surface of the second chamber 12, which reduces the possibility of the scale being discharged from the steam outlet 14 and also prevents damage resulting from the steam outlet 14 being clogged by scale.

Alternatively, as in the 6 , 8 and 11 until 15 As shown, the connecting groove 21 may be formed in the upper part of the partition wall 2 and adjacent to the upper wall of the housing 1 (for example, adjacent to the cover 16). Thus, the steam generated by the water heated by the heating element 3 can easily move upward and enter from the first chamber 11 into the second chamber 12.

According to some further embodiments of the present invention, as set forth in the 3 and 4 described, a pressure switch device 4 is provided at the steam outlet 14 to discharge the steam in the housing 1 unidirectionally via the steam outlet 14. The pressure switch device 4 provided at the steam outlet 14 can discharge the steam in the housing 1 via the steam outlet 14 at a constant rate and at a high pressure. In particular, when the heating element 3 is used for heating, the water in the housing 1 is continuously evaporated into steam. The pressure in the housing 1 steadily increases; when the pressure in the housing 1 is greater than a set value, the pressure switch device 4 is opened so that the dry steam can be quickly and easily discharged via the steam outlet 14 at a high pressure. When the pressure in the housing 1 is less than or equal to the set value, the pressure switch device 4 is closed and the pressure switch device 4 only opens again when the pressure in the housing 1 has reached the set value again. Thus, the pressure switch device 4 provided at the steam outlet 14 can always keep the housing 1 at a certain pressure, which not only improves the saturation temperature of the steam in the housing 1 and thus the temperature and dryness of the steam at the steam outlet 14, but at the same time also enables the improvement of the discharge speed of the steam to ensure that the steam is continuously discharged via the steam outlet 14 and a continuous dilution phenomenon of the steam at the steam outlet 14 is avoided. It should be understood that the setting value of the pressure in the housing 1 is related to a weight of the pressure switch device 4, accordingly, the setting value of the pressure in the housing 1 can be adjusted by adjusting the weight of the pressure switch device 4.

As in the 3 and 4 , a protruding post 161 extends downward from the cover 16, and a one-way passage 1612 having a through hole 1611 is defined in the protruding post 161. In this, the upper end of the one-way passage 1612 is connected to the steam outlet 14, and the pressure switch device 4 is provided in the one-way passage 1612. Thus, the structure is simple, and the protruding post 161 extending downward from the cover 16 increases the surface area in the second chamber 12 so that scale adheres to the outer surface of the protruding post 161, which prevents damage to the steam generator 100 resulting from excessive scale deposits to some extent to prolong the life of the steam generator 100. Of course, the present invention is not limited to this. The cover 16 may not be provided with the protruding post 161.

Optionally, the protruding post 161 has an annular cross-section and the cross-sectional area of the protruding post 161 reduces in a direction away from the cover 16.

In some further specific examples of the present invention, as in the 3 shown, the pressure switch device 4 has a sealing element 41 and an elastic element 42. In that the sealing element 41 seals the passage opening 1611 under an elastic deformation force of the elastic element 42, the sealing element 41 is arranged, for example, in the one-way passage 1612 and a lower end thereof seals the through hole 1611, the elastic member 42 abuts between the steam outlet 14 and the sealing member 41, so that the sealing member 41 can easily seal the through hole 1611 by means of the elastic deformation force of the elastic member 42. Thus, when the heating element 3 heats, the pressure in the housing 1 continuously increases, and when the pressure in the housing 1 is greater than a set value, the steam in the housing 1 pushes the sealing member 41 upward to compress the elastic member 42, so that it is possible for the steam to pass through the through hole 1611 and further pass through the one-way channel 1612 and finally be discharged via the steam outlet 14; When the pressure in the housing 1 is less than or equal to the setting value, the elastic element 42 presses against the passage opening 1611 on the sealing element 41 to seal the passage opening 1611.

On the one hand, the above configuration can further improve the saturation temperature of the steam in the casing 1 to improve the temperature and dryness of the steam at the steam outlet 14, but also enable the improvement of the discharge speed of the steam to ensure that the steam is continuously discharged via the steam outlet 14 and a continuous dilution phenomenon of the steam is avoided. On the other hand, the provided elastic member 42 and the sealing member 41 can also hold the scale and liquid water of the steam in the casing 1, which not only avoids pipe clogging due to scale discharged in the connected pipe via the steam outlet 14, but also improves the dryness of the steam discharged via the steam outlet 14. It is understood that the setting value of the pressure in the casing 1 depends on the weight of the elastic member 42 and the sealing member 41, as well as an elastic coefficient and a deformation length of the elastic member 42. Accordingly, the setting value of the pressure in the housing 1 can be adjusted by changing the weight of the elastic member 42, the sealing member 41 and the elastic coefficient and the deformation length of the elastic member 42.

Optionally, the sealing element 41 may have the shape of a sphere, a cylinder, a cone or a cuboid. Of course, it goes without saying that the sealing element 41 may also have any other shape as long as the through hole 1611 can be closed and opened. Optionally, the sealing element 41 may be designed as a piston and the elastic element 42 may be designed as a spring.

Of course, the present invention is not limited thereto. In other embodiments of the present invention, the pressure switch device 4 includes a one-way valve plate provided at the steam outlet 14. For example, the pressure switch device 4 may be configured as the one-way valve plate to discharge the steam unidirectionally via the steam outlet 14, which is simply constructed.

In some embodiments of the present invention, the heating element 3 can heat the second chamber 12 and the first chamber 11 at the same time, that is, in the entire operation of the heating element 3, the heating element 3 always heats the second chamber 12 and the first chamber 11 at the same time. Of course, the present invention is not limited to this. When the heating element 3 just starts to operate, the heating element 3 does not heat the second chamber 12 and the first chamber 11 at the same time, after a certain period of time, the heating element 3 heats the second chamber 12 and the first chamber 11 at the same time. For example, during a period of time (e.g., 5 seconds) when the heating element 3 just starts to heat, the heating element 3 heats the first chamber 11 first, so that the water in the first chamber 11 is converted into steam as quickly as possible under the heating of the heating element 3 to flow into the second chamber 12. After a period of time (e.g. 5 seconds), the heating element 3 heats the second chamber 12 and the first chamber 11 simultaneously, making it easy for the heating element 3 to further heat the water in the first chamber 11 and the steam entering the second chamber 12 to increase the dryness of the steam discharged via the steam outlet 14.

According to some embodiments of the present invention, as in 6 As described above, the steam generator 100 further comprises at least one reinforcing structure 7. The reinforcing structure 7 is housed in the second chamber 12 and/or the first chamber 11, for example, the reinforcing structure 7 may only be housed in the second chamber 12, or the reinforcing structure 7 may only be housed in the first chamber 11, or there may be multiple reinforcing structures 7 and the multiple reinforcing structures 7 are housed in the second chamber 12 and/or the first chamber 11, respectively. Thus, by providing the reinforcing structure 7 in the second chamber 12 and/or the first chamber 11, not only can an inner surface area of the second chamber 12 and/or the first chamber 11 be increased, but a larger amount of lime can suitably adhere to the reinforcing structure 7, which extends the service life of the steam generator 100 to a certain extent. But it can also prevent the lime from being expelled with the steam. to reduce the likelihood of the lime being expelled via the steam outlet 14.

The reinforcing structure 7 is in contact with the partition wall 2, whereby the heat generated by the heating element 3 is transferred to the reinforcing structure 7 to increase the heat exchange between the reinforcing structure 7 and the steam and/or the water flowing through the reinforcing structure 7, thus increasing the heat exchange area to improve the utilization rate of the heat from the heating element 3. The operation time of the heating element 3 is reduced to a certain extent and the service life of the heating element 3 is extended, indirectly thereby extending the service life of the steam generator 100, while increasing the temperature and dryness of the steam.

Optionally, the reinforcing structure 7 is not in contact with the inner side wall of the first chamber 11 (i.e., the inner side wall of the housing 1/the inner side wall of the base 15) in order to reduce heat radiation of the steam generator 100 to some extent due to contact between the reinforcing structure 7 and the inner side wall of the first chamber 11 to the outside. Of course, the present invention is not limited to this. The reinforcing structure 7 may be connected to the outer side wall of the partition wall 2 and the inner side wall of the first chamber 11 at the same time.

Furthermore, the reinforcing structure 7 is connected to the partition wall 2, for example, the reinforcing structure 7 and the partition wall 2 are integrally formed in one piece, which is simple in structure. Of course, the present invention is not limited to this. The reinforcing structure 7 can also be provided on the upper wall of the housing 1 (for example in the cover 16); The reinforcing structure 7 extends downwards into the second chamber 12 and / or the first chamber 11 and is in contact with the partition wall 2.

Specifically, a lower end of the reinforcing structure 7 is spaced from the bottom wall of the casing 1 to facilitate the flow of water and scale in the bottom area of the casing 1 (the bottom portion of the cover 16). Furthermore, the lower end of the reinforcing structure 7 is prevented from coming into contact with the bottom wall of the casing 1 to avoid the accumulation of scale therebetween. Optionally, the reinforcing structure 7 has a substantially cross-shaped cross section and the cross-sectional area of the reinforcing structure 7 continuously decreases in an up-and-down direction. Of course, the present invention is not limited to this. The reinforcing structure 7 may also be in other shapes, for example, a plate shape extending in an up-and-down direction.

Optionally, a plurality of reinforcing structures 7 are provided, and the plurality of reinforcing structures 7 are provided around the partition wall 2 in the circumferential direction. More specifically, the plurality of reinforcing structures 7 are provided around the partition wall 2 in the circumferential direction thereof and spaced apart. For example, four reinforcing structures 7 are provided, the four reinforcing structures 7 being housed in the first chamber 11 and evenly arranged around the partition wall 2 in the circumferential direction. It is understood that sizes and shapes of the plurality of reinforcing structures 7 may be the same and may also be different.

According to some embodiments of the present invention, the steam generator 100 further comprises at least one lime-receiving structure in the second chamber 12 and/or the first chamber 11. For example, the lime-receiving structure is provided only in the second chamber 12, or the lime-receiving structure is provided only in the first chamber 11, or multiple lime-receiving structures are provided and the plurality of lime-receiving structures are provided in the first chamber 11 and the second chamber 12, respectively. Thus, by providing the lime-receiving structure, not only can the inner surface of the second chamber 12 and/or the first chamber 11 be increased, but also a larger amount of lime can be suitably stored on the lime-receiving structure to extend the service life of the steam generator 100, but also the flow of the lime with the steam can be prevented to reduce the likelihood of the lime flowing out via the steam outlet 14.

With reference to the 10 until 18 the lime absorption structure is configured to be at least a mesh grid 81, a strip grid 82 or a column grid 83.

For example, as can be seen from the 13 and 15 As can be seen, the scale receiving structure is designed as a mesh grid 81 and thus facilitates the enlargement of the inner surface of the housing 1 to facilitate the adhesion of more scale to the mesh grid 81 to thereby extend the service life of the steam generator 100 and meshes of the mesh grid 81 can also prevent the lime from flowing along with the steam to reduce the likelihood of the lime flowing out via the steam outlet 14. The mesh grid 81 eliminates the need for a filter screen at the steam outlet 14, thus avoiding the following technical problems: the steam outlet 14 is blocked because limescale is deposited on the filter screen provided at the steam outlet 14 and the pipe is blocked because the limescale on the filter screen flows into the outer pipe connected to the steam outlet 14, etc.

It is noted that a mesh of the net grid 81 may be formed as a circular hole, a hexagonal hole, or holes in other shapes, which is not limited by the present invention. It is understood that meshes of the net grid 81 may have the same size, but of course may have different sizes. Optionally, the sizes of the meshes of the net grid 81 are adjustable. For example, the sizes of the meshes of the net grid 81 may be adjusted depending on different water qualities and the operating conditions in different areas.

Optionally, a plurality of mesh grids 81 may be provided, and the plurality of mesh grids 81 are spaced apart in the chamber (ie, the first chamber 11 and/or the second chamber 12). For example, as shown in the 13 and 15 three mesh grids 81 are spaced apart in the first chamber 11 so that a deposition area for the lime increases to a greater extent and the outflow of the lime with the steam is avoided to a greater extent to reduce the probability of the lime being discharged via the steam outlet 14.

For example, as in the 17 and 18 As shown, the scale receiving structure is formed as a strip grid 82, thereby facilitating an increase in the inner surface of the casing 1 to facilitate the adhesion of more scale to the strip grid 82, so as to prolong the service life of the steam generator 100 to a certain extent, and the outflow of the scale together with the steam can be avoided to reduce the possibility of the scale flowing out via the steam outlet 14. Meanwhile, a filter screen at the steam outlet 14 can be dispensed with because of the strip grille 82, thus the following problems in the art can be avoided: the steam outlet 14 is clogged because scale deposits on the filter screen provided at the steam outlet 14 and clogs the pipe because the scale on the filter screen flows into the outer pipe connected to the steam outlet 14, etc. In addition, since each grille hole of the strip grille 82 extends in a height direction of the strip grille 82, the scale is clogged by the strip grille 82, and the scale deposits downward to a lower portion of the strip grille 82, which reduces the possibility of the strip grille 82 being blocked by the scale and ensures a flow area of the steam via the strip grille 82; Further, when the steam flows through the strip grid 82, the flow velocity of the steam is not excessively large to prevent the scale from being discharged through the steam outlet 14 together with the steam.

It is understood that the sizes and number of grid holes of each strip grid 82 are adjustable, for example, the sizes of grid holes can be adjusted according to different water qualities and the operating conditions in different areas.

Optionally, a plurality of strip grids 82 may be provided, and the plurality of strip grids 82 are spaced apart in the chamber (ie, the first chamber 11 and/or the second chamber 12). For example, as in 18 As shown, three strip grids 82 may be spaced apart in the first chamber 11 so that an adhesion area for the lime increases to a greater extent and the outflow of the lime via the steam outlet 14 together with the steam is prevented to a greater extent.

Furthermore, the mesh grid 81 and/or the strip grid 82 are provided in the first chamber 11, wherein two ends of the mesh grid 81 and/or two ends of the strip grid 82 are connected to the inner side wall of the first chamber 11 and the outer side wall of the partition wall 2, respectively. For example, when the first chamber 11 is provided only with the mesh grid 81, two ends of the mesh grid 81 are connected to the inner side wall of the first chamber 11 and the outer side wall of the partition wall 2, respectively; when the first chamber 11 is provided only with the strip grid 82, two ends of the strip grid 82 are connected to the inner side wall of the first chamber 11 and the outer side wall of the partition wall 2, respectively; And when the first chamber 11 is provided with the mesh grid 81 and the strip grid 82 at the same time, two ends of the mesh grid 81 and two ends of the strip grid 82 are connected to the inner side wall of the first chamber 11 and the outer side wall of the partition wall 2, respectively. Thus, the steam flowing through the first chamber 11 must pass through the mesh grid 81 and/or the strip grid 82 to continue to flow forward, so that the flow of the lime together with the steam is reliably prevented.

With reference to 14 , the inner side wall of the first chamber 11 is provided with a first snap groove 84, the outer side wall of the partition 2 being provided with a second snap groove 85 and the two ends of the net grid 81 and / or two ends of the strip grid 82 are snapped into the first snap groove 84 and the second snap groove 85, whereby the net grid 81 and / or the strip grid 82 are reliably fixed in the first chamber 11, to avoid movement or wobbling of the net grid 81 and / or the strip grid 82 in the first chamber 11 due to unstable fixation of the net grid 81 and / or the strip grid 82, which would impair use of the net grid 81 and the strip grid 82.

In a special embodiment of 14 both the first snap groove 84 and the second snap groove 85 extend in the height direction of the housing 1 (i.e., in the height direction of the base 15) to reliably fix the strip grid 82 and/or the mesh grid 81 between the first chamber 11 and the partition wall 2. Specifically, the first snap groove 84 is defined by two first protruding ribs protruding from the inner side wall of the first chamber 11 and spaced from each other. The second snap groove 85 is defined by two second protruding ribs protruding from the outer side wall of the partition wall 2 and spaced from each other, which is simple and reliable in structure. Optionally, the second protruding ribs and the partition wall 2 may be integrally formed, and the first protruding ribs and the housing 1 may be integrally formed from one part.

In further embodiments of the present invention, as in the 10 until 12 As shown, a column grid 83 is arranged in the first chamber 11 and/or the second chamber 12, and the column grid 83 has a plurality of extending strips 831 extending substantially in a radial direction thereof, thereby achieving an increase in the inner surface area of the first chamber 11 and/or the second chamber 12 to facilitate the adhesion of more scale to the extending strips 831. Thus, the service life of the steam generator 100 can be extended to some extent; the extending strips 831 can also prevent the flow of the scale with the steam to some extent to reduce the likelihood of the scale flowing out via the steam outlet 14.

In particular, the column grid 83 comprises a number of grooves of extending strips 831 distributed in the height direction of the housing 1, each round comprising a plurality of circumferential strips 831 distributed around a circumference (e.g. around a circumference of the partition wall 2) to increase the inner surface of the first chamber 11 and/or the second chamber 12 to enable the absorption of more lime, thereby the outflow of the lime with the steam can be largely avoided to increase the service life of the steam generator 100. Further, two adjacent rounds of extending strips 831 are arranged offset from each other in a height direction, for example, a number of rounds of extending strips 831 distributed in the height direction of the housing 1 (e.g. the height direction of the base 15) are offset from each other. Thus, when the scale flows out with the steam, the possibility of the scale coming into contact with the extending strips 831 can be increased, the flow of the scale with the steam can thus be prevented, furthermore, the steam outlet 14 and the pipe connected to the steam outlet 14 can be prevented from being blocked by the flowing scale, which increases the service life of the steam generator 100.

Optionally, the extending strips 831 extend from the outer side wall and/or the inner side wall of the partition wall 2, for example, when the column grille 83 is provided in the second chamber 12, the extending strips 831 extend from the inner side wall of the partition wall 2 toward the second chamber 12; when the column grille 83 is provided in the first chamber 11, the extending strips 831 extend from the outer side wall of the partition wall 2 toward the first chamber 11; when the column grilles 83 are provided in the first chamber 11 and the second chamber 12 at the same time, the plurality of extending strips 831 extend from the outer side wall of the partition wall 2 toward the first chamber 11 and extend from the inner side wall of the partition wall 2 toward the second chamber 12.

In some embodiments of the present invention, as in the 3 and 4 As shown, the heating element 3 is arranged spirally around the partition wall 2 in the circumferential direction and is provided in the partition wall 2. For example, one heating element 3 is provided and the heating element 3 is arranged spirally around the partition wall 2 in the circumferential direction and is provided in the partition wall 2. In order to increase the contact area of the heating element 3 and the partition wall 2, the heating element 3 can transfer more heat to the second chamber 12 and the first chamber 11. Thus, the preheating time of the steam generator 100 is shortened, and the temperature and dryness of the steam are improved. Of course, the present invention is not limited to this. A plurality of heating elements 3 may be provided, and the plurality of heating elements 3 are arranged in an up and down downward direction of the partition wall 2 and spaced from each other.

According to some embodiments of the present invention, the steam generator 100 further comprises at least one temperature controller 9 and the temperature controller 9 controls the activation and deactivation of the heating element 3 according to a temperature of the housing 1.

As in the 1 , 5 and 6 , the temperature controller 9 is provided on an outer surface of the housing 1. For example, the temperature controller 9 is arranged on an outer top wall of the housing 1 (ie, an outer top wall of the lid 16), on an outer bottom wall of the housing 1 (ie, an outer bottom wall of the base 15), or on an outer side wall of the housing 1 (ie, an outer side wall of the base 15). Thus, the arrangement of the temperature controller 9 on the outer surface of the housing 1 not only simplifies the installation, maintenance, and replacement of the temperature controller 9, but also optimizes the operation of the temperature controller 9. Thus, the temperature controller 9 does not have to be operated under severe environmental conditions, so that the selection of the temperature controller 9 is increased, for example, a temperature controller 9 with low cost can be selected to achieve a reduction in the cost of the steam generator 100.

Optionally, in some examples, the temperature controller 9 is configured as an electronic temperature controller 9 connected to a first temperature sensor, wherein the temperature controller 9 is provided on the outer surface of the housing 1 to detect the temperature of the housing 1 through the first temperature sensor, and controls the activation and deactivation of the heating element 3 according to the temperature detected by the first temperature sensor. For example, when the first temperature sensor of the temperature controller 9 detects a temperature of the housing 1 greater than a predetermined maximum temperature, the temperature controller 9 controls the heating element 3 to stop heating; when the first temperature sensor detects that the temperature of the housing 1 is less than a predetermined minimum temperature, the temperature controller 9 controls the heating element 3 to heat it. This increases the longevity of the heating element 3, the operational reliability of the steam generator 100 and prevents the steam generator 100 from burning out and other potential safety risks resulting from excessively high temperatures due to continuous heating of the steam by the heating element 3.

Optionally, a plurality of temperature controllers 9 are provided and connected in parallel and may be provided at different positions on the outer surface of the housing 1 to detect the temperatures of the different positions on the housing 1. For example, when a first temperature sensor of a first temperature controller 9 detects a temperature at a position on the housing 1 where the temperature controller is located is greater than the predetermined maximum temperature value, the first temperature controller 9 may turn off the heating element 3; after the heating element 3 stops heating, a first temperature sensor of a second temperature controller 9 may detect that a temperature at a position on the housing 1 where the second temperature controller 9 is located is less than the predetermined minimum temperature value, the second temperature controller 9 may control the heating element 3 to heat.

Of course, in other examples, the temperature controller 9 may be designed as a mechanical temperature controller 9 and provided on the housing 1, and the temperature controller 9 may be disconnected or reset to control the activation and deactivation of the heating element 3.

In some embodiments of the present invention, as in the 1 and 6 As shown, the steam generator 100 further includes at least one fuse 10 provided on the outer surface of the housing 1. For example, the fuse 10 is provided on the outer upper wall of the housing 1 (ie, the outer upper wall of the lid 16), on the outer bottom wall of the housing 1 (ie, the outer bottom wall of the base 15), or on the outer side wall of the housing 1 (ie, the outer side wall of the base 15). This facilitates the assembly, maintenance, and replacement of the fuse 10.

Each fuse 10 includes a second temperature sensor, and the fuse 10 is provided on the outer surface of the housing 1 to cause the second temperature sensor to detect the temperature of the housing 1. When the second temperature sensor detects that the temperature of the housing 1 is greater than a predetermined value, the fuse 10 turns off the heating element 3. When the second temperature sensor of the fuse 10 detects that the temperature of the housing 1 is abnormally high (for example, when the steam generator 100 is in abnormal operation and the temperature controller 9 breaks down) and is greater than the predetermined value, the fuse 10 can trip to de-energize the heating element 3 to stop the heating element 3 from heating, thus improving the safety of use of the steam generator 100.

Optionally, a plurality of fuses 10 may be provided which are connected in parallel; the plurality of fuses 10 may be provided at different positions on the outer surface of the housing 1.

Further, the temperature controller 9 is provided on the outer side wall of the housing 1, for example, the temperature controller 9 is provided on the outer side wall of the base 15. Optionally, the fuse 10 and the temperature controller 9 are both provided on the outer side wall of the base 15.

In some embodiments of the present invention, as in the 1 until 18 As shown, the housing 1 is designed as a cube, a sphere, an ellipsoid or a cylinder, which is simply constructed.

Optionally, the steam outlet 14 is provided at a position corresponding to the center of the second chamber 12. Of course, the present invention is not limited to this. The steam outlet 14 may also be provided at other positions of the upper wall of the housing 1 (i.e., the cover 16) corresponding to the second chamber 12, as long as the steam can easily flow out of the second chamber 12.

Optionally, the center line of the partition wall 2 and the center line of the housing 1 are collinear, i.e., a center line of the second chamber 12 and a center line of the first chamber 11 are collinear. Thus, the steam can pass through the first chamber 11 evenly and easily, and it is easy for the heating element 3 to evenly heat the steam in the first chamber 11. Of course, it goes without saying that the center line of the second chamber 12 and the center line of the first chamber 11 may also be non-collinear.

As in 19 As shown, the steam generator system 1000 according to embodiments of the present invention includes the steam generator 100 described above, a water tank 200, a water softener 400, and a water pump 300. Optionally, the water pump 300 is a positive displacement pump or a vane pump.

In particular, as in 19 shown, the water pump 300 is connected between the water tank 200 and the water inlet 13, when the steam generator 100 is in operation, the water pump 300 pumps the water from the water tank 200 continuously into the housing 1 of the steam generator 100, and the heating element 3 heats continuously. Specifically, V denotes the flow rate of the water pump 300, when the steam generator 100 is in operation, the water pump 300 continuously pumps the water from the water tank 200 into the housing 1 at a flow rate of 20 ml/min≤V≤100 ml/min. Specifically, when the steam generation system 1000 is in operation, the water pump 300 continuously pumps the water from the water tank 200 into the housing 1 of the steam generator 100 at a flow rate of 20 ml/min≤V≤100 ml/min, so that the water in the housing 1 will quickly evaporate into steam by the heating of the heating element 3 and the steam is then discharged via the steam outlet 14. On the one hand, water can be easily added, the preheating time of the steam generator 100 is shortened, and continuous discharge of steam via the steam outlet 14 is ensured, so that the operating efficiency of the steam generator 100 is improved. On the other hand, arrangement of a level sensor, wiring, etc. in the steam generator 100 is avoided, so that costs can be saved and workers can easily assemble it, at the same time, the safety of the steam generation system 1000 is improved. It is to be noted that the water pump 300 continuously pumps the water from the water tank 200 into the housing 1 of the steam generator 100 at a flow rate of 20 ml/min ≤ V ≤ 100 ml/min, where the "continuous" can be interpreted as three embodiments that continue without stopping or without interruption, continue at equal time intervals, or continue at unequal time intervals.

Optionally, P represents a power of the heating element 3 when 1000W ≤ P ≤ 2500W, 20 ml/min ≤ V ≤ 100 ml/min. Thus, the cooperation between the heating element 3 and the water pump 300 is optimized to avoid the following problems: when the power of the heating element 3 is too low, too much water is pumped into the housing 1 by the water pump 300, thus the water in the housing 1 overflows; and when the power of the heating element 3 is too high, too little water is pumped into the housing 1 by the water pump 300, thus the heating element 3 has no water to heat. Thus, the safety of the steam generator system 1000 during operation can be further improved.

In the steam generating system 1000 according to the embodiments of the present invention, the steam generator 100 described above is provided, thus water can be easily added and the household appliance can be downsized because the steam generating system 1000 has a small size.

According to some embodiments of the present invention, when the steam generator 100 is in operation, the water pump 300 continuously pumps water from the water tank 200 into the Housing 1 and the heating element 3 heats continuously. That is, once the steam generator 100 starts operating, the water pump 300 continuously pumps the water from the water tank 200 into the housing 1 and the heating element 3 heats continuously. Of course, the present invention is not limited to this. In other embodiments, when the steam generation system 1000 is in operation, the water pump 300 may pump a predetermined amount of water from the water tank 200 into the housing 1 at equal intervals or at unequal intervals, and the heating element 3 may heat continuously. For example, the water pump 300 may pump the predetermined amount of water into the housing 1 every 5 minutes, with the heating element 3 heating continuously, even after the water pump 300 has pumped the predetermined amount of water into the housing 1 and the pumping stops, the heating element 3 continues to heat. This means that a time parameter by which the water pump 300 pumps water from the water tank 200 into the housing 1 at equal or unequal intervals can be adapted according to practical requirements.

In some embodiments of the present invention, the water tank 200, the water pump 300 and the water inlet 13 of the steam generator 100 are connected to each other to form a water inlet piping, and the water softener 400 is connected to the water inlet in series. Thus, the water softener 400 is connected to the water inlet piping in series to soften the water in the water inlet piping, and the water entering the steam generator 100 is softened, so that during use of the steam generator 100, the scale in the steam generator 100 can be significantly reduced, and descaling of the steam generator 100 can be avoided. Thus, the cost is reduced and the safety in the operation of the steam generation system 1000 is improved to extend the service life of the steam generation system 1000.

Alternatively, as in 19 , the water softener 400 may be provided in the water tank 200 to soften the water in the water tank 200. Of course, the present invention is not limited thereto. The water softener 400 may also be connected in series to other positions in the water supply piping, such as a location between the water pump 300 and the steam generator 100.

If necessary, the water softener 400 is designed as a softening resin or reverse osmosis membrane in order to achieve a softening effect on the water in the water supply pipe and to largely remove the lime in the water.

The household appliance according to embodiments of the present invention includes the steam generator system 1000 described above.

The household appliance according to the embodiments of the present invention is small in size by having the steam generating system 1000 described above, the downsizing of the household appliance is facilitated and water is supplied into the housing 1 via the water inlet 13.

According to some embodiments of the present invention, the household appliance may be a vacuum cleaner, a clothes steamer, an extractor hood, a coffee machine, a washing machine, an air conditioner or a microwave oven.

In the present invention, the terms "mounted," "connected," "coupled," "fixed," and the like are used broadly and may, for example, be fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intermediate structures; may also be internal communications or interactions of two elements that can be understood by those skilled in the art in specific situations.

Reference in this specification to an "embodiment," "some embodiments," "an example," "a specific example," or "some examples" means a particular feature, structure, material, or property described in connection with the embodiment, or example is included in at least one embodiment or example of the present disclosure. Thus, the terms used in various places in this specification do not necessarily refer to the same embodiment or example of the present disclosure. Further, the particular features, structures, materials, or properties may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art may combine the various embodiments or examples and the features of the various embodiments or examples described in this specification without conflicting situations.

Although illustrative embodiments have been shown and described, it would be obvious that the above embodiments are not may be interpreted to limit the present disclosure, and changes, alternatives and modifications may be made in the embodiments within the scope of the present disclosure by those skilled in the art.

list of reference symbols

1000

steam generation system;

100

steam generator;

1

Housing;

11

first chamber;

12

second chamber;

17

third chamber;

13

water inlet;

14

steam outlet;

15

Base;

16

Cover;

162

Rib;

161

protruding post;

1611

passage opening;

1612

one-way passage;

163

raised line;

2

Partition;

22

groove or channel;

21

connecting groove or channel;

211

first connecting groove;

212

second connecting groove or channel;

3

heating element;

31

electrical connection;

4

pressure switch device;

41

sealing element;

42

elastic element;

5

barrier wall;

51

first front wall;

52

second front wall;

53

third front wall;

54

fourth front wall;

55

sealing groove;

61

first water inlet pipe;

62

second water inlet pipe;

621

first water drain;

622

C-shaped pipe segment;

623

vertical pipe segment;

7

reinforcement structure;

81

mesh grid;

82

strip grid;

83

column grille;

831

extension strips or rods;

84

first snap groove;

85

second snap groove;

9

temperature controller;

10

security;

200

water tank;

300

water pump;

400

Water softener.

Claims (27)

Steam generator (100), comprising: a housing (1), wherein at least two spaced-apart chambers are formed in the housing (1), the at least two chambers are connected to one another via a connection (21), and two chambers of the at least two chambers are each provided with a water inlet (13) and a steam outlet (14), respectively; a heating element (3) formed in the housing (1), which is used for heating and evaporating water to steam in the housing (1); and a flow channel formed in the housing (1) which extends from the water inlet (13) to the steam outlet (14) via the at least two chambers, wherein a first chamber (11) and a second chamber (12) are formed in the housing (1) via a partition wall (2), at least one connection (21) is provided in the partition wall (2) to bring the first chamber (11) into fluid communication with the second chamber (12), wherein the water inlet (13) is connected to the first chamber (11), the steam outlet (14) is connected to the second chamber (12) and the heating element (3) is provided on the partition wall (2) to heat the first chamber (11) and the second chamber (12), wherein the partition wall (2) is formed as an annular part so that the first chamber (11) surrounds the second chamber (12), characterized in that the flow channel comprises a partial flow channel, wherein at least one Partial flow channel is formed between the first chamber (11) and the second chamber (12), wherein a barrier wall (5) is provided in the at least one partial flow channel in order to control the flow direction flow of the fluid, and wherein the barrier wall (5) is provided adjacent to the connection (21). Steam generator (100) according to claim 1 , wherein a first chamber (11), a second chamber (12) and a third chamber (17) are formed in the housing (1), the third chamber (17) and the second chamber (12) are provided side by side in the housing (1), the first chamber (11) is defined by the side walls of the third chamber (17) and the second chamber (12) and an inner side wall of the housing (1), the first chamber (11) is connected to the third chamber (17) via a first connection (211) and the third chamber (17) is connected to the second chamber (12) via a second connection (212). Steam generator (100) according to claim 2 , wherein the heating element (3) is provided on side walls of the third chamber (17) and the second chamber (12) for heating the first chamber (11), the second chamber (12) and the third chamber (17). Steam generator (100) according to one of the Claims 1 until 3 , wherein the water inlet (13) is connected to the first chamber (11) and the steam outlet (14) is connected to the second chamber (12). Steam generator (100) according to claim 1 , wherein the partition wall (2) is designed as a plate-shaped piece to separate the first chamber (11) and the second chamber (12) and to arrange the first chamber (11) and the second chamber (12) side by side in a left and right side. Steam generator (100) according to claim 1 , wherein the first chamber (11) is provided with the barrier wall (5) for blocking the flow direction of the fluid and the barrier wall (5) is provided adjacent to the connection (21). Steam generator (100) according to claim 6 , wherein the water inlet (13) is arranged on a side of the barrier wall (5) facing away from the connection (21). Steam generator (100) according to claim 7 , wherein the steam generator (100) further comprises a first water inlet pipe (61) which is in communication with the water inlet (13), wherein a water outlet end of the first water inlet pipe (61) projects into the first chamber (11). Steam generator (100) according to claim 6 , wherein the water inlet (13) and the connection (21) are arranged on the same side of the barrier wall (5). Steam generator (100) according to claim 9 , wherein the steam generator (100) further comprises a second water inlet pipe (62) which is in communication with the water inlet (13), wherein a free end of the second water inlet pipe (62) extends from a side of the barrier wall (5) adjacent to the connection (21) to the other side of the barrier wall (5) after circling the partition wall (2) in a circumferential direction. Steam generator (100) according to claim 10 , wherein the second water inlet pipe (62) has a plurality of spaced-apart first water outlet openings (621). Steam generator (100) according to claim 10 , wherein the free end of the second water inlet pipe (62) is designed as a water outlet end. Steam generator (100) according to claim 9 , wherein the steam generator (100) further comprises a third water inlet pipe connected to the water inlet (13), and a water outlet end of the third water inlet pipe extends, after passing through the barrier wall (5), in a side of the first chamber (11) facing away from the connection (21). Steam generator (100) according to claim 9 , wherein the steam generator (100) further comprises a fourth water inlet pipe connected to the water inlet (13), wherein a free end of the fourth water inlet pipe is closed, wherein the fourth water inlet pipe penetrates the barrier wall (5) and extends in a circumferential direction of the partition wall (2), and forms a plurality of spaced-apart second water outlet openings in the longitudinal direction of the fourth water inlet pipe. Steam generator (100) according to claim 1 , wherein the steam generated in the first chamber (11) forms a steam cyclone air flow after entering the second chamber (12) via the connection (21). Steam generator (100) according to claim 15 , wherein the extension direction of the connection (21) is tangential to an inner peripheral wall surface of the second chamber (12), so that the steam generated in the first chamber (11) enters the second chamber (12) tangentially. Steam generator (100) according to claim 1 , wherein the connection (21) is formed in an upper part of the partition wall (2) and adjoins an upper wall of the housing. Steam generator (100) according to claim 6 , wherein the heating element (3) further comprises an electrical connection (31), and wherein the electrical connection (31) is integrated into the barrier wall (5) and is accessible via a through hole in a side wall of the housing corresponding to the barrier wall (5). Steam generator (100) according to claim 1 , wherein the heating element (3) heats the second chamber (12) and the first chamber (11) simultaneously. Steam generator (100) according to claim 1 , wherein the heating element (3) is integrated in an interior space of the partition wall (2), an inner wall surface or an outer wall surface of the partition wall (2). Steam generator (100) according to claim 20 , wherein the heating element (3) is helical in a circumferential direction of the partition wall (2) and is provided in the partition wall (2). Steam generator (100) according to one of the Claims 1 until 21 , wherein the housing (1) has a base (15) and a cover (16) used to seal the base (15), the water inlet (13) and the steam outlet (14) both being provided in the cover (16). Steam generator (100) according to one of the Claims 1 until 22 , wherein the steam generator (100) further comprises at least one temperature controller (9) provided on an outer surface of the housing (1), and the temperature controller (9) controls the activation and deactivation of the heating element (3) according to a housing temperature. Steam generator (100) according to one of the Claims 1 until 23 , further comprising at least one fuse (10), each fuse (10) having a second temperature sensor, and wherein the fuse (10) is provided on an outer surface of the housing (1) so that the second temperature sensor detects a temperature of the housing (1), and when the second temperature sensor detects a temperature of the housing (1) greater than a predetermined value, the fuse (10) switches off the heating element (3). Steam generation system (1000), comprising: a water tank (200); a steam generator (100) according to one of the Claims 1 until 24 ; and a water pump (300) which continuously pumps water from the water tank (200) into the housing (1). Household appliance comprising the steam generation system (1000) according to claim 25 has. household appliance according to claim 26 , where the household appliance is designed as a vacuum cleaner, clothing steamer, extractor hood, coffee machine, washing machine, air conditioner or microwave oven.

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