CN105716058B - Steam generator, steam generator system and household electrical appliance - Google Patents

Abstract

The invention discloses a steam generator, a steam generator system and household appliances. The steam generator comprises: a base, the top of the base is open, and a partition wall is arranged inside the base; a cover body, the cover closes the base to define two outer chambers and an inner chamber spaced apart from each other with the base and the partition wall, and the outer chamber The chamber and the inner chamber communicate with each other through at least one communication groove, and the cover has a water inlet and a steam outlet, one of the water inlet and the steam outlet communicates with the outer chamber, and the other of the water inlet and the steam outlet communicates with each other. It communicates with the inner chamber; the heating element is arranged between the inner chamber and the outer chamber to heat the inner chamber and the outer chamber; the booster switch device is arranged at the steam outlet to make the inside of the base The water vapor is unidirectionally discharged from the steam outlet. The steam generator of the present invention is beneficial to increase the saturation temperature of the water vapor in the inner chamber and the outer chamber, and ensures that the water vapor is continuously discharged from the steam outlet.

Description

Steam generators, steam generator systems and household appliances

technical field

The invention relates to the technical field of household appliances, in particular to a steam generator, a steam generator system and household appliances.

Background technique

Due to the fact that the existing instantaneous steam generator cannot maintain high pressure in the cavity of its own structure, the saturation temperature of the steam in the cavity is low, so that the temperature of the water vapor at the steam outlet is relatively low, and the steam velocity is not high.

Existing boiler-type steam generators rely on closing the steam outlet valve to increase the pressure in the chamber, but when in use, because the valve is always open, the steam is not continuous and is in a state of gradual and continuous attenuation.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the present invention proposes a steam generator, which not only helps to increase the pressure in the inner chamber and the outer chamber, but also facilitates continuous discharge of water vapor from the steam outlet.

The present invention also proposes a steam generator system, including the steam generator mentioned above.

The present invention also proposes a household appliance, including the above-mentioned steam generator system.

The steam generator according to the embodiment of the present invention comprises: a base, the top of which is open, and a partition wall is arranged inside the base; Two outer chambers and inner chambers spaced apart from each other are defined, the outer chamber and the inner chamber communicate with each other through at least one communication groove, and the cover has a water inlet and a steam outlet, so One of the water inlet and the steam outlet is communicated with the outer chamber, and the other of the water inlet and the steam outlet is communicated with the inner chamber; a heating element, the heating element is set between the inner chamber and the outer chamber to heat the inner chamber and the outer chamber; a boost switch device, the boost switch device is arranged at the steam outlet to make the The water vapor in the base is unidirectionally discharged from the steam outlet.

According to the steam generator of the embodiment of the present invention, by arranging a booster switch device at the steam outlet, the inner chamber and the outer chamber can always maintain high pressure, which is not only beneficial to further improve the water vapor in the inner chamber and the outer chamber. The saturation temperature is used to increase the temperature and dryness of the steam at the steam outlet, and it is also conducive to increasing the discharge speed of water vapor, ensuring that the water vapor is continuously discharged from the steam outlet, and avoiding the phenomenon of continuous attenuation of water vapor.

According to some embodiments of the present invention, the cover body extends downwards from a protruding column, and the protruding column defines a one-way channel with a channel opening at the bottom, the upper end of the one-way channel communicates with the steam outlet, and the The boost switch device is arranged in the one-way channel.

Further, the pressurization switch device includes: a seal; and an elastic element, the seal seals the channel opening under the force of elastic deformation of the elastic element.

According to some embodiments of the present invention, the boost switch device includes a one-way valve plate arranged at the steam outlet.

According to some embodiments of the present invention, the communication groove is located on the upper part of the partition wall and adjacent to the cover.

According to some embodiments of the present invention, the extending direction of the communication groove is tangent to the inner peripheral wall surface of the inner chamber, so that the water vapor formed in the outer chamber enters the inner chamber tangentially.

According to some embodiments of the invention, the heating element heats the inner chamber and the outer chamber simultaneously.

According to some embodiments of the present invention, the heating element spirally surrounds the circumference of the partition wall and is arranged in the partition wall.

According to some embodiments of the present invention, the water inlet communicates with the outer chamber, and the steam outlet communicates with the inner chamber.

A steam generator system according to an embodiment of the present invention includes the aforementioned steam generator.

According to the steam generator system of the embodiment of the present invention, by setting the above-mentioned steam generator, the inner chamber and the outer chamber can always maintain high pressure, which not only helps to further increase the saturation temperature of the water vapor in the inner chamber and the outer chamber , to increase the temperature and dryness of the steam at the steam outlet, and also help to increase the discharge speed of water vapor, ensure that the water vapor is continuously discharged from the steam outlet, and avoid the phenomenon of continuous attenuation of water vapor.

A household appliance according to an embodiment of the present invention includes the above-mentioned steam generator system.

According to the household appliance of the embodiment of the present invention, the use of the household appliance is facilitated by setting the above-mentioned steam generator system.

According to some embodiments of the present invention, the household appliance is a vacuum cleaner, a garment steamer, a range hood, a coffee machine, a washing machine, an air conditioner or a microwave oven.

Description of drawings

Fig. 1 is a schematic structural view of a steam generator according to some embodiments of the present invention;

Fig. 2 is an explosion diagram according to the steam generator shown in Fig. 1;

Fig. 3 is a top view of the steam generator shown in Fig. 1;

Fig. 4 is the sectional view of the A-A direction of the steam generator shown in Fig. 3;

Fig. 5 is the A-A direction sectional view of the steam generator shown in Fig. 3 with elastic elements and seals removed;

6 is a schematic diagram of a steam generator system according to an embodiment of the present invention.

Reference signs:

steam generator system 1000;

steam generator 100;

Shell 1; outer chamber 11; inner chamber 12; water inlet 13; steam outlet 14; base 15; Groove 22; communication groove 21; heating element 3; electrical terminal 31; boost switch device 4; seal 41; elastic element 42; temperature controller 5; fuse 6;

Water tank 200; water pump 300; softening water device 400;

Detailed ways

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom" " The orientation or positional relationship indicated by "inner", "outer" and "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.

A steam generator 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings. The steam generator 100 can be used in the steam generator system 1000, and together with the steam generator system 1000 can be applied in household appliances such as vacuum cleaners, garment steamers, range hoods, coffee machines, washing machines, air conditioners or microwave ovens, etc., for Generate steam.

As shown in FIGS. 1-5 , a steam generator 100 according to an embodiment of the present invention may include a casing 1 , a heating element 3 and a boost switch device 4 . The heating element 3 can be arranged in the housing 1 so as to facilitate heating of the water in the housing 1 . The electrical connection terminal 31 of the heating element 3 is located on the outer wall of the housing 1 so as to facilitate the power supply and the operation of the heating element 3 .

Specifically, as shown in FIGS. 1 and 2 , the casing 1 includes a base 15 and a cover 16 . Wherein, as shown in Figure 2, the top of the base 15 is open, the base 15 is provided with a partition wall 2, and the cover 16 closes the base 15 to define two outer chambers 11 and 11 spaced apart from each other with the base 15 and the partition wall 2. inner chamber 12 . For example, an annular partition wall 2 is provided in the base 15 to separate the outer chamber 11 and the inner chamber 12 , and make the outer chamber 11 surround the inner chamber 12 . Thus, on the one hand, it is beneficial to increase the volume of the base 15 by arranging two chambers spaced apart from each other; More scale can avoid damage to the steam generator 100 caused by excessive scale to a certain extent, and prolong the service life of the steam generator 100 .

The outer chamber 11 and the inner chamber 12 communicate with each other through at least one communication groove 21 , for example, the outer chamber 11 and the inner chamber 12 communicate through a communication groove 21 , and the communication groove is provided on the partition wall 2 . The cover 16 has a water inlet 13 and a steam outlet 14, one of the water inlet 13 and the steam outlet 14 communicates with the outer chamber 11, and the other of the water inlet 13 and the steam outlet 14 communicates with the inner chamber 12, That is to say, when the water inlet 13 communicates with the outer chamber 11 , the steam outlet 14 communicates with the inner chamber 12 , and when the water inlet 13 communicates with the inner chamber 12 , the steam outlet 14 communicates with the outer chamber 11 .

Thus, by setting the inner chamber 12 and the outer chamber 11 spaced apart from each other in the housing 1, one of the water inlet 13 and the steam outlet 14 is communicated with the outer chamber 11 at the same time, and the water inlet 13 and the steam outlet 14 communicate with each other. The other of the outlets 14 communicates with the inner chamber 12. During the use of the steam generator 100, when the steam outlet 14 continues to discharge steam, water can be conveniently added to the inner chamber 12 or the outer chamber 11 through the water inlet 13. (For example, when the water inlet 13 is communicated with the outer chamber 11, and the steam outlet 14 is communicated with the inner chamber 12, water can be added to the outer chamber 11 through the water inlet 13, and when the water inlet 13 is communicated with the inner chamber 12, the steam When the outlet 14 communicates with the outer chamber 11, water can be added to the inner chamber 12 through the water inlet 13), which avoids the inconvenient problem of adding water to the boiler-type steam generator in the prior art during use, and compared with Boiler-type steam generator, the steam generator 100 in the present invention has a small volume, and when the steam generator 100 is installed in a household appliance along with the steam generator system 1000, it is beneficial to the miniaturization of the household appliance.

The heating element 3 is disposed between the inner chamber 12 and the outer chamber 11 to heat the inner chamber 12 and the outer chamber 11 . For example, the heating element 3 can be arranged in the partition wall 2 , on the inner wall surface or the outer wall surface of the partition wall 2 so as to heat the inner chamber 12 and the outer chamber 11 . Of course, the present invention is not limited thereto, and the heating element 3 can also be arranged in other positions of the housing 1 such as in the inner chamber 12 or the outer chamber 11 .

Specifically, when the water inlet 13 communicates with the outer chamber 11 and the steam outlet 14 communicates with the inner chamber 12, the water entering the outer chamber 11 from the water inlet 13 becomes dry under the heating of the heating element 3. Smaller (that is, higher humidity) water vapor enters the inner chamber 12 through the communication groove 21, and the water vapor with less dryness entering the inner chamber 12 becomes under the further heating of the heating element 3 The water vapor with higher dryness is discharged from the steam outlet 14 . When the water inlet 13 was communicated with the inner chamber 12 and the steam outlet 14 was communicated with the outer chamber 11, the water entering the inner chamber 12 from the water inlet 13 became less dry under the heating of the heating element 3 (i.e. Humidity) water vapor, water vapor enters the outer chamber 11 through the communication groove 21, and becomes dry water vapor in the outer chamber 11 under the further heating of the heating element 3 and is discharged from the steam outlet 14. Wherein, it should be noted that, during the heating process of the heating element 3 , water can be continuously added to the chamber communicated with the water inlet 13 .

Thus, by making the heating element 3 heat the inner chamber 12 and the outer chamber 11, and continuously add water to the corresponding chamber (the inner chamber 12 or the outer chamber 11) through the water inlet 13, not only improve The utilization rate of the heating element 3 is improved, and the preheating time of the steam generator 100 is shortened, so that the steam generator 100 can continuously produce steam with high temperature and high dryness.

It can be understood that the top wall of the housing 1 is the cover 16 , the side wall of the housing 1 is the side wall of the base 15 , and the bottom wall of the housing 1 is the bottom wall of the base 15 . Optionally, both the housing 1 and the partition wall 2 disposed in the housing 1 can be cast aluminum parts, and can be obtained through integral molding.

The pressurization switch device 4 is arranged at the steam outlet 14 so that the water vapor in the base 15 is unidirectionally discharged from the steam outlet 14 . For example, the pressure boost switch device 4 arranged at the steam outlet 14 can make the steam in the base 15 be discharged from the steam outlet 14 at a constant speed and high pressure. Specifically, when the heating element 3 is heated, the liquid water in the base 15 is continuously vaporized into water vapor, and becomes dry steam under the further heating of the heating element 3. During this process, the inner chamber 12 and the The pressure in the outer chamber 11 is constantly increasing. When the pressures in the inner chamber 12 and the outer chamber 11 are greater than the set value, the booster switch device 4 is opened so that the dry steam can be quickly discharged from the steam outlet 14 under high pressure. , when the pressure in the inner chamber 12 and the outer chamber 11 decreases to less than or equal to the set value, the pressure boost switch device 4 is closed until the pressure in the inner chamber 12 and the outer chamber 11 reaches the set value again , the boost switch device 4 is opened. Thus, the booster switch device 4 arranged at the steam outlet 14 can keep a certain pressure in the inner chamber 12 and the outer chamber 11, which not only helps to further improve the pressure of the steam in the inner chamber 12 and the outer chamber 11. Saturation temperature, to increase the temperature and dryness of the steam at the steam outlet 14, but also help to increase the discharge speed of the steam, ensure that the steam is continuously discharged from the steam outlet 14, and avoid the continuous attenuation of the steam at the steam outlet 14. Among them, it can be understood that the pressure setting values in the outer chamber 11 and the inner chamber 12 are related to the weight of the boost switch device 4, therefore, the pressure in the housing 1 can be adjusted by adjusting the weight of the boost switch device 4. pressure setting value.

According to the steam generator 100 of the embodiment of the present invention, by arranging the booster switch device 4 at the steam outlet 14, the inner chamber 12 and the outer chamber 11 can always maintain high pressure, which not only helps to further improve the inner chamber 12 and the saturation temperature of the water vapor in the outer chamber 11 to increase the temperature and dryness of the steam at the steam outlet 14, and also help to increase the discharge speed of the steam to ensure that the steam is continuously discharged from the steam outlet 14, avoiding continuous steam attenuation phenomenon.

According to some embodiments of the present invention, as shown in FIG. 4 and FIG. 5 , the cover body 16 extends downwards from a protruding post 161 , and the protruding post 161 defines a one-way channel 1612 with a channel opening 1611 at the bottom, and the one-way channel 1612 The upper end communicates with the steam outlet 14, and the booster switch device 4 is arranged in the one-way passage 1612, thus, not only the structure is simple, but also the protruding column 161 extending downward from the cover body 16 increases the surface area inside the housing 1, so that Since the scale adheres to the outer surface of the protruding column 161 , the damage of the steam generator 100 caused by excessive scale is avoided to a certain extent, and the service life of the steam generator 100 is prolonged. Of course, the present invention is not limited thereto, and the protruding post 161 may not be provided on the cover body 16 .

Optionally, the cross-section of the protruding post 161 is formed in a circular shape, and the cross-sectional area of the protruding post 161 becomes smaller and smaller in a direction away from the cover body 16 .

In some further specific examples of the present invention, as shown in FIG. 4 , the pressure boost switch device 4 includes a sealing member 41 and an elastic element 42 . Wherein, the sealing member 41 seals the channel opening 1611 under the force of elastic deformation of the elastic element 42 . For example, the sealing member 41 is located in the one-way passage 1612 and the lower end closes the passage opening 1611, and the elastic element 42 stops between the steam outlet 14 and the sealing member 41 so that the sealing member 41 seals the passage opening according to the elastic deformation force of the elastic element 42 1611. Thus, when the heating element 3 heats, the pressure in the inner cavity and the outer cavity increases continuously, and when the pressure in the inner cavity 12 and the outer cavity 11 is greater than the set value, the water vapor in the housing 1 Push the seal 41 to move upward so that the elastic element 42 is in a compressed state, so that the steam can pass through the channel opening 1611 and further pass through the one-way channel 1612, and finally be discharged from the steam outlet 14. When the internal chamber 12 and the external chamber 11 When the pressure is less than or equal to the set value, the elastic element 42 presses the sealing member 41 against the channel opening 1611 to close the channel opening 1611 . Therefore, on the one hand, it is not only beneficial to further increase the saturation temperature of the water vapor in the inner chamber 12 and the outer chamber 11, so as to increase the temperature and dryness of the steam at the steam outlet 14, but also to increase the discharge speed of the steam. Ensure that the steam is continuously discharged from the steam outlet 14, avoiding the phenomenon of continuous steam attenuation. On the other hand, setting the elastic element 42 and the sealing member 41 can also block the scale and liquid water in the steam in the base 15, which can not only avoid The blockage of the pipeline caused by the discharge of steam into the pipeline connected with the steam outlet 14 further increases the dryness of the steam discharged from the steam outlet 14 . Wherein, it can be understood that the set value of the pressure in the inner chamber 12 and the outer chamber 11 is related to the weight of the elastic element 42 and the seal 41, the elastic coefficient and the deformation length of the elastic element 42, therefore, it can be adjusted by The weight of the elastic element 42 and the sealing member 41 , the elastic coefficient and the deformation length of the elastic element 42 are used to adjust the set value of the pressure in the inner chamber 12 and the outer chamber 11 .

Optionally, the sealing member 41 may be in the shape of a sphere, cylinder, cone or cuboid. Of course, it is understandable that the sealing member 41 may also have other shapes, as long as it can close and open the channel opening 1611 . Alternatively, the seal 41 may be a piston. Optionally, the elastic element 42 may be a spring with a simple structure.

In some other embodiments of the present invention, the boost switch device 4 includes a one-way valve disposed at the steam outlet 14 . For example, the pressure boost switch device 4 may be a one-way valve plate so that the steam in the base 15 is discharged from the steam outlet 14 in one direction, and the structure is simple.

In some embodiments of the present invention, as shown in FIG. 2 , the communication groove 21 is located on the upper part of the partition wall 2 and adjacent to the cover 16 . Thus, it is beneficial for the water vapor formed after being heated by the heating element 3 to move upward and enter the chamber (inner chamber) communicated with the steam outlet 14 from the chamber (outer chamber 11 or inner chamber 12) communicated with the water inlet 13. chamber 12 or outer chamber 11).

In some embodiments of the present invention, the hot water vapor in the outer chamber 11 enters the inner chamber 12 through the communication groove 21 to form a cyclone airflow. Specifically, when the water inlet 13 communicates with the outer chamber 11 and the steam outlet 14 communicates with the inner chamber 12, under the heating of the heating element 3, the water vapor with a lower dryness in the outer chamber 11 passes through the communication groove. 21 enters the inner chamber 12, and forms a cyclone airflow in the inner chamber 12, so that the water vapor with a lower dryness contacts the inner wall surface of the inner chamber 12, and the cyclone airflow will form an effect similar to a cyclone separator at the same time, so that The liquid water in the water vapor flings to the inner wall of the inner chamber 12 and flows down along it, and further forms water vapor under the heating of the heating element 3, thus, on the one hand, not only can the inner chamber be avoided to a certain extent, Partial overheating occurs on the inner wall surface of 12, which is beneficial to increase the service life of the heating element 3, and at the same time, it can also improve the heating efficiency of the heating element 3, shorten the preheating time of the steam generator 100, and increase the temperature and dryness of the water vapor On the other hand, the scale in the water vapor is thrown towards the inner wall surface of the inner chamber 12 and adheres to the inner wall surface of the inner chamber 12, thereby reducing the possibility of the scale being discharged from the steam outlet 14 to a certain extent.

Specifically, the extension direction of the communication groove 21 is tangent to the inner peripheral wall surface of the inner chamber 12 so that the water vapor formed in the outer chamber 11 enters the inner chamber 12 tangentially, thus, the flow of the cyclone airflow can be further enhanced On the one hand, it can largely avoid local overheating of the inner wall of the inner chamber 12, further improve the service life of the heating element 3, and at the same time further improve the heating efficiency of the heating element 3 to further shorten the steam generator 100. The preheating time can further increase the temperature and dryness of the steam, and on the other hand, it can further reduce the possibility of scale being discharged from the steam outlet 14.

In some embodiments of the present invention, the heating element 3 can heat the inner chamber 12 and the outer chamber 11 at the same time, that is to say, during the entire working process of the heating element 3, the heating element 3 can always heat the inner chamber 12 and the outer chamber 11. The outer chamber 11 is simultaneously heated. Of course, the present invention is not limited thereto. When the heating element 3 just starts working, the heating element 3 does not heat the inner chamber 12 and the outer chamber 11 at the same time. After a period of time, the heating element 3 heats the inner chamber 12 and the outer chamber 11 while heating. For example, during a period of time (for example, 5S) when the heating element 3 has just started to work, the heating element 3 first heats the chamber such as the outer chamber 11 communicated with the water inlet 13, so that the water in the outer chamber 11 can flow in the heating element. Under the heating of 3, it becomes water vapor as soon as possible and enters another chamber such as the inner chamber 12. After a period of time (for example, 5 seconds), the heating element 3 heats the inner chamber 12 and the outer chamber 11 at the same time, so that the heating element 3 Continue to heat the water in the chamber communicated with the water inlet 13 such as the outer chamber 11 and continue to heat the water vapor entering another chamber such as the inner chamber 12 , thereby improving the dryness of the steam discharged from the steam outlet 14 .

In some embodiments of the present invention, as shown in FIG. 4 and FIG. 5 , the heating element 3 spirally surrounds the circumference of the partition wall 2 and is arranged inside the partition wall 2 . For example, one heating element 3 surrounds the circumference of the partition wall 2 in a spiral shape and is arranged in the partition wall 2, thereby increasing the contact area between the heating element 3 and the partition wall 2, so that the heating element 3 passes through the partition wall 2 more The heat is radiated to the inner chamber 12 and the outer chamber 11 efficiently, thereby shortening the preheating time of the steam generator 100 and increasing the temperature and dryness of the steam. Of course, the present invention is not limited thereto, and the heating elements 3 may also include a plurality of them, and the plurality of heating elements 3 are distributed at intervals in the vertical direction of the partition wall 2 .

According to some embodiments of the present invention, the water inlet 13 communicates with the outer chamber 11 , and the steam outlet 14 communicates with the inner chamber 12 , so the structure is simple. Optionally, the water inlet 13 may be provided at any position on the top wall of the housing 1 (such as the cover 16 ) corresponding to the outer chamber 11 .

According to some embodiments of the present invention, as shown in FIGS. 1-2 , the steam generator 100 further includes at least one thermostat 5, and the thermostat 5 controls the temperature of the heating element 3 according to the temperature of the base 15 and/or the cover 16. work and disconnect.

The temperature controller 5 is arranged on the outer surface of the base 15 and/or the cover 16 . For example, the thermostat 5 is located on the outer top wall of the housing 1 (i.e. the outer top wall of the cover 16), the outer bottom wall of the housing 1 (i.e. the outer bottom wall of the base 15) or the outer wall surface of the housing 1 ( That is, on the outer side wall of the base 15). Thus, by arranging the thermostat 5 on the outer surface of the base 15 and/or the cover 16, it not only facilitates the installation, maintenance and replacement of the thermostat 5, but also optimizes the working environment of the thermostat 5, The temperature controller 5 does not need to work in a harsh environment, thereby expanding the optional range of the temperature controller 5 , such as selecting a low-cost temperature controller 5 , which is beneficial to reduce the cost of the steam generator 100 .

Optionally, in some examples, the thermostat 5 is an electronic thermostat 5 connected with a first temperature sensor, and the thermostat 5 is arranged on the outer surface of the base 15 and/or the cover 16 so that The first temperature sensor detects the temperature of the base 15 or the cover 16 , and the thermostat 5 controls the heating element 3 to work and disconnect according to the temperature detected by the first temperature sensor.

It can be understood that, when the thermostat 5 is arranged on the outer surface of the base 15, the first temperature sensor detects the temperature of the base 15; when the thermostat 5 is arranged on the outer surface of the cover 16, the first What the temperature sensor detects is the temperature of the cover body 16 .

For example, when the thermostat 5 is arranged on the outer surface of the base 15, and the first temperature sensor detects that the temperature of the base 15 is higher than the predetermined maximum temperature value, the thermostat 5 controls the heating element 3 to stop heating, and when the first When the temperature sensor detects that the temperature of the base 15 is lower than the preset minimum temperature value, the thermostat 5 controls the heating element 3 to heat, thereby ensuring the reliability of the heating element 3, improving the safety of the use of the steam generator 100, and avoiding heating due to heating. The continuous heating of the element 3 causes the steam generator 100 to be burned out and other safety hazards due to overheating.

Optionally, the thermostat 5 may include a plurality of thermostats 5 connected in parallel, and the plurality of thermostats 5 may be respectively arranged at different positions on the outer surface of the cover 16 and/or base 15 to detect The temperature at different locations of the cover 16 and/or base 15 . For example, when the first temperature sensor of one of the thermostats 5 detects that the temperature at the corresponding position of the base 15 where the thermostat 5 is located is higher than a predetermined maximum temperature value, the thermostat 5 can control the heating element 3. Stop heating. After stopping heating for a period of time, if the first temperature sensor of another thermostat 5 located on the cover 16 detects that the temperature at this position is lower than the predetermined minimum temperature value, the thermostat 5 will immediately The heating element 3 is controlled to start heating.

Certainly, in some other examples, the thermostat 5 is a mechanical thermostat 5 and is arranged on the base 15 and/or the cover 16, and the thermostat 5 can be switched off according to the temperature of the base 15 and/or the cover 16. On or reset, thereby controlling the operation and disconnection of the heating element 3.

In some embodiments of the present invention, as shown in FIGS. 1 and 2 , the steam generator 100 further includes at least one fuse 6 disposed on the outer surface of the base 15 and/or the cover 16 . For example, the fuse 6 is located on the outer top wall of the housing 1 (i.e. the outer top wall of the cover 16), the outer bottom wall of the housing 1 (i.e. the outer bottom wall of the base 15) or the outer wall of the housing 1 (i.e. on the outer side wall of the base 15). Therefore, the installation, maintenance and replacement of the fuse 6 are facilitated.

Each fuse 6 includes a second temperature sensor, and the fuse 6 is arranged on the outer surface of the base 15 and/or the cover 16 so that the second temperature sensor detects the temperature at the base 15 and/or the cover 16, when the second When the temperature sensor detects that the temperature of the base 15 and/or the cover 16 is higher than a predetermined value, the fuse 6 controls the heating element 3 to be powered off. Specifically, when the second temperature sensor of the fuse 6 detects that the temperature of the base 15 and/or the cover 16 is abnormally high (for example, when the steam generator 100 works abnormally and the thermostat 5 fails) and is higher than a predetermined value , the fuse 6 is blown to cut off the power of the heating element 3 to stop the heating of the heating element 3, thereby improving the safety of the steam generator 100 in use.

Optionally, the fuse 6 may include multiple fuses 6 connected in parallel, and the multiple fuses 6 may be arranged at different positions on the outer surface of the base 15 and/or the cover 16 .

Further, the temperature controller 5 is arranged on the outer wall surface of the base 15 . Optionally, the fuse 6 and the temperature controller 5 are arranged on the outer wall surface of the base 15 at the same time.

In some embodiments of the present invention, the base 15 is formed in a substantially cuboid shape, a sphere shape, an ellipsoid shape or a cylinder shape, and the structure is simple. Further, the partition wall 2 is formed in a circular or square ring shape, that is, the cross section of the partition wall 2 is formed in a circular or square ring shape, thereby separating the outer chamber 11 and the inner chamber 12 . Of course, the present invention is not limited thereto, and the cross section of the partition wall 2 can also be formed in other shapes, such as ellipse.

Optionally, the steam outlet 14 communicates with the inner chamber 12 and is arranged corresponding to the center of the inner chamber 12 . Certainly, the present invention is not limited thereto, and the steam outlet 14 can also be arranged at other positions of the top wall (i.e., the cover 16) of the housing 1 corresponding to the inner chamber 12, as long as it is convenient for the steam in the inner chamber 12 to be discharged. Can.

Optionally, the centerlines of the partition wall 2 and the base 15 are on the same line, that is to say, the centerlines of the inner chamber 12 and the outer chamber 11 are on the same line, thereby not only facilitating the smooth flow of water vapor through the outer chamber 11, Moreover, it is also convenient for the heating element 3 to evenly heat the water vapor in the outer chamber 11 . Of course, it can be understood that the centerlines of the inner chamber 12 and the outer chamber 11 may also be different.

Optionally, the base 15 and the cover 16 are connected by fasteners such as bolt fasteners. Specifically, as shown in Figure 2, the top of the partition wall 2 is provided with a groove 22, and the bottom wall of the cover 16 is provided with a rib 162 that cooperates with the groove 22. When the cover covers the base, the rib 162 Accommodated in the groove 22, the base 15 and the cover 16 are further fixed by fasteners, so as to realize the sealed connection between the base and the cover.

As shown in FIG. 6 , a steam generator system 1000 according to an embodiment of the present invention includes the above steam generator 100 , a water tank 200 , a water softening device 400 and a water pump 300 . Optionally, the water pump 300 is a positive displacement pump or a vane pump.

According to the steam generator system 1000 of the embodiment of the present invention, by setting the above-mentioned steam generator 100 and by setting the booster switch device 4 at the steam outlet 14, the inner chamber 12 and the outer chamber 11 can always maintain high pressure, This not only helps to further increase the saturation temperature of the steam in the inner chamber 12 and the outer chamber 11, to improve the temperature and dryness of the steam at the steam outlet 14, but also helps to increase the discharge speed of the steam to ensure that the steam is discharged from the steam outlet. Continuous discharge at 14 places avoids the phenomenon of continuous attenuation of steam.

Specifically, as shown in Figure 6, the water pump 300 is connected between the water tank 200 and the water inlet 13, and when the steam generator 100 works, the water pump 300 continuously pumps the water 300 in the water tank 200 into the base 15, and the heating element 3 Continuous heating, so that the continuous discharge of steam at the steam outlet 14.

The water tank 200, the water pump 300 and the water inlet 13 of the steam generator 100 are connected to form a water inlet pipeline, and the water softening device 400 is connected in series in the water inlet pipeline. Therefore, by connecting the water softening device 400 in series in the water inlet pipeline to soften the water in the water inlet pipeline, the water entering the steam generator 100 is demineralized water, so that during the use of the steam generator 100, The scale in the steam generator 100 can be greatly reduced, and there is no need to descale the steam generator 100, which not only saves costs, but also improves the safety of the steam generator system 1000 and prolongs the steam generation. The service life of the device system 1000.

Optionally, as shown in FIG. 6 , a water softening device 400 is provided in the water tank 200 to soften the water in the water tank 200 . Of course, the present invention is not limited thereto, and the water softening device 400 may also be connected in series at other positions in the water inlet pipeline such as between the water pump 300 and the steam generator 100 .

Optionally, the water softening device 400 is softening resin or reverse osmosis membrane. Therefore, the softening effect on the water in the water inlet pipeline is improved, and the scale in the raw water is removed to a large extent.

A household appliance according to an embodiment of the present invention includes the steam generator system 1000 described above.

According to the household appliance of the embodiment of the present invention, the use of the household appliance is facilitated by setting the steam generator system 1000 described above.

According to some embodiments of the present invention, the household appliance is a vacuum cleaner, a garment steamer, a range hood, a coffee machine, a washing machine, an air conditioner or a microwave oven.

In the present invention, unless otherwise clearly specified and limited, terms such as "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical Connection can also be electrical connection or mutual communication; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (9)

1. A steam generator, characterized in that, comprising: a base, the top of the base is open, a partition wall is provided inside the base, and an annular groove is provided on the top of the partition wall; a cover body, which closes the base to define two outer chambers and an inner chamber spaced apart from each other with the base and the partition wall, between the outer chamber and the inner chamber Communicate with each other through at least one communication groove, the communication groove is arranged on the top of the partition wall and at the opening of the groove, the cover has a water inlet and a steam outlet, and the bottom wall of the cover There is an open-ring convex rib matched with the groove, when the cover covers the base, the rib is accommodated in the groove, the water inlet and the steam outlet One of them communicates with the outer chamber, and the other of the water inlet and the steam outlet communicates with the inner chamber, and the extension direction of the communication groove is the same as that of the chamber communicated with the steam outlet. The inner peripheral wall is tangent so that the water vapor formed in the chamber communicated with the water inlet enters the chamber communicated with the steam outlet tangentially; a heating element disposed between the inner chamber and the outer chamber to heat the inner chamber and the outer chamber; A booster switch device, the booster switch device is arranged at the steam outlet so that the water vapor in the base is unidirectionally discharged from the steam outlet, and the cover body extends downwards from a protruding column, and the protruding column A one-way channel with a channel opening at the bottom is defined inside, the upper end of the one-way channel communicates with the steam outlet, and the booster switch device is arranged in the one-way channel. 2. The steam generator according to claim 1, wherein the boost switch device comprises: seals; and An elastic element, the sealing member seals the channel opening under the force of elastic deformation of the elastic element. 3. The steam generator according to claim 1, wherein the boost switch device comprises a one-way valve disposed at the steam outlet. 4. The steam generator of claim 1, wherein the heating element heats the inner chamber and the outer chamber simultaneously. 5 . The steam generator according to claim 1 , wherein the heating element spirally surrounds the circumference of the partition wall and is arranged inside the partition wall. 6 . 6. The steam generator according to any one of claims 1-5, wherein the water inlet communicates with the outer chamber, and the steam outlet communicates with the inner chamber. 7. A steam generator system, characterized in that it comprises the steam generator according to any one of claims 1-6. 8. A household appliance, characterized by comprising the steam generator system according to claim 7. 9. The household appliance according to claim 8, wherein the household appliance is a vacuum cleaner, a garment steamer, a range hood, a coffee machine, a washing machine, an air conditioner or a microwave oven.