CN214094411U - Steam generator and household appliance - Google Patents

Abstract

The utility model discloses a steam generator and domestic appliance, wherein, steam generator includes: the heating pipeline is provided with a water inlet, a steam outlet and at least one middle opening positioned between the water inlet and the steam outlet; the steam valve is arranged on the heating pipeline and positioned at the middle port, and can conduct the heating pipeline at the upstream of the steam valve and the middle port and block the heating pipeline at the downstream of the steam valve; or, the steam valve can conduct the heating pipelines at the upstream and the downstream of the steam valve and block the intermediate port. The utility model discloses technical scheme aims at making steam generator has multiple mode to provide different steam volume or different steam temperature.

Description

Steam generator and household appliance

Technical Field

The utility model relates to the technical field of household appliances, in particular to steam generator and household appliances.

Background

The food processed by the steam can ensure that the loss of the nutrient contents of the food materials is less, and the heat of the food processed by the frying mode is greatly reduced, so that the food processing method is a cooking mode pursued by many healthy people.

Steam type product mainly utilizes steam generator to produce steam and processes food, and steam generator in the steam type product at present is producing the back, and the diameter and the length of runner are fixed, and in steam generator working process, steam temperature or the steam volume that steam generator produced are fixed, can't adjust according to the user demand of difference.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a steam generator, which is designed to have a plurality of operation modes to provide different amounts of steam or different steam temperatures.

In order to achieve the above object, the present invention provides a steam generator, including:

the heating pipeline is provided with a water inlet, a steam outlet and at least one middle opening positioned between the water inlet and the steam outlet;

the steam valve is arranged on the heating pipeline and positioned at the middle port, and can conduct the heating pipeline at the upstream of the steam valve and the middle port and block the heating pipeline at the downstream of the steam valve; or, the steam valve can conduct the heating pipelines at the upstream and the downstream of the steam valve and block the intermediate port.

Optionally, the heating pipeline includes at least two flow guide pipe sections and a transition pipe section communicating the two flow guide pipe sections, the water inlet is disposed in one of the flow guide pipe sections, and the steam outlet is disposed in the other flow guide pipe section.

Optionally, the heating pipeline further comprises an installation channel, the installation channel is communicated with the transition pipe section and the intermediate port, and the steam valve is movably accommodated in the installation channel; the steam valve extends into the transition pipe section to conduct the heating pipeline and the intermediate port on the upstream of the transition pipe section and seal the diversion pipe section on the downstream of the transition pipe section; the steam valve at least partially exits the transition pipe section to conduct the flow guide pipe sections upstream and downstream of the transition pipe section and block the intermediate port.

Optionally, the axial direction of the installation channel and the axial direction of the transition pipe section form an included angle.

Optionally, the axial direction of the mounting channel coincides with the axial direction of the transition duct section.

Optionally, the steam valve is provided with a steam inlet and a steam outlet, and a steam channel communicating the steam inlet and the steam outlet;

the steam inlet is communicated with the guide pipe section positioned at the upstream, and the steam outlet is communicated with the middle port;

or the steam valve blocks the middle port.

Optionally, the side of one end of the steam valve is provided with the steam inlet, the other end of the steam valve is provided with the steam outlet, and one end of the steam valve provided with the steam outlet extends out of the middle opening.

Optionally, a first sealing ring is sleeved outside the steam valve, and the first sealing ring is located on one side of the steam inlet far away from the steam outlet;

the first sealing ring seals the steam valve and the transition pipe section;

or, the first sealing ring seals the steam valve and the mounting channel.

Optionally, a second sealing ring is further sleeved on the outer side of the steam valve, and the second sealing ring is located on one side of the steam inlet close to the steam outlet;

when the steam valve conducts the heating pipeline on the upstream of the steam valve and the intermediate port and blocks the heating pipeline on the downstream of the steam valve, the second sealing ring seals the mounting channel and the steam valve.

Optionally, the heating pipeline is provided with at least two intermediate ports, and the two intermediate ports are arranged at intervals along the extending direction of the heating pipeline;

the steam generator comprises at least two steam valves, and the two steam valves are respectively arranged corresponding to the two middle ports.

The utility model also provides a household appliance, which is characterized in that the household appliance comprises a shell and a steam generator;

the steam generator includes:

the heating pipeline is provided with a water inlet, a steam outlet and at least one middle opening positioned between the water inlet and the steam outlet;

the steam valve is arranged on the heating pipeline and positioned at the middle port, and can conduct the heating pipeline at the upstream of the steam valve and the middle port and block the heating pipeline at the downstream of the steam valve; or, the steam valve can conduct the heating pipelines at the upstream and the downstream of the steam valve and block the intermediate port;

a cooking space is formed in the shell, the steam generator is connected to the shell, and a middle opening and the steam outlet of the steam generator are communicated to the cooking space.

The utility model discloses in technical scheme's the evaporimeter, be equipped with an at least steam valve on the heating tube, this steam valve can switch on the heating tube and the middle mouthful of its upper reaches to carry out the shutoff with the heating tube in its low reaches, make the steam that the heating tube internal heating formed only discharge by the middle mouthful that this steam valve corresponds. In the process, the steam discharged from the middle port is generated by heating the liquid in the heating pipeline between the water inlet and the middle port.

The steam valve can also conduct the heating pipelines at the upstream and the downstream and block the middle port, so that the steam formed by heating in the heating pipeline is only discharged from the steam outlet on the heating pipeline. In the process, the steam discharged from the steam outlet is generated by heating the liquid in the heating pipeline between the water inlet and the steam outlet. The steam discharged from the middle port and the steam discharged from the steam outlet are formed by heating through heating pipelines with different lengths, so that a user can select to use the middle port to discharge the steam alone or use the steam outlet to discharge the steam alone, and different use effects are obtained.

Because the heating pipeline can be divided into different lengths by the middle opening, the steam valve positioned at the middle opening can control the steam discharged by the steam generator to be generated by heating the heating pipeline with different lengths, so that the steam generator can independently discharge the steam from the middle opening or independently discharge the steam from the steam outlet, and the steam with different temperatures or different steam amounts can be obtained to meet different requirements of users.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a steam generator according to the present invention;

fig. 2 is a schematic structural view of another embodiment of the steam generator of the present invention;

fig. 3 is a schematic structural view of another embodiment of the steam generator of the present invention;

FIG. 4 is a schematic view of the steam valve in the open position of the embodiment shown in FIG. 2;

FIG. 5 is a schematic view of the steam valve in the closed position of the embodiment shown in FIG. 2;

FIG. 6 is a schematic view of the steam valve in the open position of the embodiment shown in FIG. 3;

fig. 7 is a schematic structural view of the steam generator of the present invention with two steam valves;

fig. 8 shows the steam direction of the steam generator of the present invention in the short flow path mode;

fig. 9 shows the steam direction of the steam generator of the present invention in the middle flow channel mode;

fig. 10 shows the steam direction of the steam generator of the present invention in the long flow path mode.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Steam generator	30	Steam valve
10	Heating pipeline	31	Steam inlet
				11	Diversion pipe section	33	Steam outlet
111	Water inlet	35	Steam channel
				113	Middle port	41	First seal ring
115	Steam outlet	43	Second seal ring
				13	Transition pipe section	50	Temperature sensor
15	Installation channel

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a steam generator 100, wherein the steam generator 100 can be applied to a steam box or a steamer, etc. for a household appliance that uses steam to process food materials.

The steam generator 100 of the embodiment of the present invention comprises a heating pipe 10, the heating pipe 10 is provided with a water inlet 111 and a steam outlet 115, and at least one middle opening 113 located between the water inlet 111 and the steam outlet 115;

the steam generator 100 further comprises at least one steam valve 30, the steam valve 30 being arranged in the heating conduit 10 and being located at the intermediate port 113. The steam valves 30 are provided in the same number as the intermediate ports 113, and are disposed in one-to-one correspondence. When there is one intermediate port 113 in the heating duct 10, the steam generator 100 includes one steam valve 30, and when there are two or more intermediate ports 113 in the heating duct 10, the steam generator 100 includes two or more steam valves 30, one steam valve 30 being provided corresponding to one intermediate port 113.

The water flow enters the heating pipe 10 through the water inlet 111 and flows through the intermediate port 113 and the air outlet 115 in sequence under the guidance of the heating pipe 10, and the water in the heating pipe 10 is gradually heated and vaporized in the process. The upstream or downstream is defined in terms of the sequential position of water flow therethrough, and in the following description, the upstream of the steam valve 30, i.e., the position through which water flows before passing through the steam valve 30; downstream of the steam valve 30, i.e., where the water flow passes after passing through the steam valve 30. Similarly, if described as upstream of another structure, it indicates the location through which the water flow passes before passing through the other structure, and if described as downstream of the other structure, it indicates the location through which the water flow passes after passing through the other structure.

The steam valve 30 can conduct the heating pipeline 10 at the upstream and the middle port 113, and block the heating pipeline 10 at the downstream; alternatively, the steam valve 30 may open the heating conduit 10 upstream and downstream thereof and block the intermediate port 113.

The steam generator 100 further comprises a driving mechanism connected to the steam valve 30 and capable of driving the steam valve 30 to be in an open position or a closed position.

In the steam generator 100 according to the present invention, the heating pipe 10 can heat the liquid inside. The heating pipe 10 may be composed of a heat-resistant pipe and a heat-conducting medium surrounding the outside of the pipe, and the heat-conducting medium may be self-heating or heated by a heating element.

The utility model discloses in technical scheme's the evaporimeter, mouthful 113 in the middle of being equipped with at least on heating tube 10, mouthful 113 is located between water inlet 111 and the play steam port 115 in this middle, and steam generator 100 still is equipped with an at least steam valve 30, and heating tube 10 is located to this steam valve 30 to mouthful 113 departments in the middle of being located.

The steam valve 30 has an open position and a closed position. When the steam valve 30 is in the open position, the steam valve 30 can conduct the heating pipeline 10 at the upstream and the intermediate port 113, and block the heating pipeline 10 at the downstream, so that the steam formed by heating in the heating pipeline 10 is discharged only from the intermediate port 113 corresponding to the steam valve 30. In this process, the steam discharged from the intermediate port 113 is generated by heating the liquid inside the heating pipe 10 between the water inlet 111 and the intermediate port 113.

When the steam valve 30 is in the closed position, the steam valve 30 can also conduct the heating pipeline 10 at the upstream and the downstream, and block the intermediate port 113, so that the steam formed by heating in the heating pipeline 10 is discharged only from the steam outlet 115 on the heating pipeline 10. In the process, the steam discharged from the steam outlet 115 is steam generated by heating the liquid in the heating pipeline 10 between the water inlet 111 and the steam outlet 115. The steam discharged from the intermediate port 113 and the steam discharged from the steam outlet 115 are heated by the heating pipes 10 with different lengths, so that a user can select to use the intermediate port 113 alone to discharge the steam or the steam outlet 115 alone to discharge the steam, thereby obtaining different use effects.

The utility model discloses among the technical scheme, because middle mouthful 113 can divide heating tube 10 into different length, the steam valve 30 that is located middle mouthful 113 department can control steam generator 100 exhaust steam and heat and generate by the heating tube 10 of different length for this steam generator 100 is alone by middle mouthful 113 exhaust steam, or is alone by steam outlet 115 exhaust steam, can obtain the steam of different temperatures, or can obtain different steam volume, with the different demands that satisfy the user.

When only one intermediate port 113 and one steam valve 30 are provided, the amount of steam or the temperature of the steam discharged from the intermediate port 113 and the steam outlet 115 can be controlled to be different so as to meet different use requirements of users. When there are a plurality of intermediate ports 113 and a plurality of steam valves 30, the temperature of the steam discharged from each of the intermediate ports 113 and the steam outlet 115 may be controlled to be different, and the amount of the steam discharged from each of the intermediate ports 113 and the steam outlet 115 may be controlled to be different.

In the above embodiment, the steam valve 30 may be only a plug, which is accommodated in the heating pipe 10 and controlled by the driving mechanism to close the heating pipe 10 downstream thereof, or controlled by the driving mechanism to close the middle opening 113. The steam valve 30 may also be composed of a first blocking piece and a second blocking piece, both of which are accommodated in the heating pipeline 10, the first blocking piece may open or block the middle port 113 under the driving of the corresponding driving member, and the second blocking piece may open or block the heating pipeline 10 at the downstream thereof first under the driving of the corresponding driving member. The first plugging piece and the second plugging piece can be switched between two states in a moving or rotating mode.

The utility model discloses technical scheme can be equipped with the part definition that mouthful 113 was in the middle of being equipped with on heating pipeline 10 and be the transition pipeline section 13, and will be located mouthful 113 upper reaches and heating pipeline 10 of low reaches are defined as the diversion pipeline section 11 respectively. When the heating pipeline 10 is provided with at least one intermediate port 113 and the steam generator 100 comprises at least one steam valve 30, the heating pipeline 10 comprises at least two guide pipe sections 11 and a transition pipe section 13 communicating the two guide pipe sections 11, the water inlet 111 is arranged in one guide pipe section 11, the steam outlet 115 is arranged in the other guide pipe section 11, and the intermediate port 113 is arranged in the transition pipe section 13.

The utility model discloses two water conservancy diversion pipeline sections 11 among the technical scheme can be parallel arrangement. The parallel arrangement of the guide pipe sections 11 ensures that the steam generator 100 has a standard integral structure and high use safety. Specifically, the two diversion pipe sections 11 are horizontally arranged, so that the diversion pipe sections 11 can uniformly heat the liquid in the diversion pipe sections.

The extending direction of the transition pipe section 13 and the extending direction of the guide pipe section 11 can be the same, and can also be arranged in an included angle.

As shown in fig. 1, when the extension directions of the duct section 11 and the transition section 13 are the same, the heating pipeline 10 may be in a line shape, so that the middle port 113 or the steam outlet 115 of the steam generator 100 may be extended to a greater extent for discharging steam.

When the pipe sections 11 and the transition pipe section 13 are arranged at an angle, as in the embodiment shown in fig. 2, the heating pipeline 10 may extend substantially in a "Z" shape when the two pipe sections 11 extend in the same direction, and as in the embodiment shown in fig. 3, the heating pipeline 10 may extend substantially in a "U" shape when the two pipe sections 11 extend in opposite directions. When the heating pipe 10 is provided with a plurality of intermediate ports 113, the heating pipe 10 may have a structure in which a plurality of zigzag lines are sequentially connected or a structure in which a plurality of U lines are sequentially and reversely connected. When the heating duct 10 extends in a zigzag shape, the middle port 113 or the steam outlet 115 of the steam generator 100 may extend to a greater extent to discharge steam. When the heating pipe 10 extends in a U shape, the structure of the steam generator 100 is more compact, so that the household appliance using the steam generator 100 has a compact structure and a small volume.

Referring to fig. 4 and 5, the heating pipeline 10 may further include a mounting passage 15, the mounting passage 15 communicates with the transition pipe section 13 and the intermediate port 113, and the steam valve 30 is movably received in the driving mechanism; the steam valve 30 extends into the transition pipe section 13 to conduct the upstream guide pipe section 11 and the corresponding intermediate port 113 of the steam valve 30 and block the downstream guide pipe section 11; the steam valve 30 at least partially exits the transition pipe section 13 to open the flow pipe sections 11 upstream and downstream thereof and to block the intermediate port 113.

The steam valve 30 is provided with a steam inlet 31 and a steam outlet 33, and a steam passage 35 communicating the steam inlet 31 and the steam outlet 33. When the driving mechanism drives the steam valve 30 to extend into the transition pipe section 13, the steam valve 30 is located at an opening position, the steam inlet 31 on the steam valve 30 is communicated with the heating pipeline 10 at the upstream, and the steam outlet 33 on the steam valve 30 is communicated with the intermediate port 113; when the driving mechanism drives the steam valve 30 to be withdrawn to the installation channel 15, the steam valve 30 is located at a closed position, and the steam valve 30 can block the installation channel 15. Specifically, the steam valve 30 has a length direction which coincides with the axial direction of the installation passage 15, the steam inlet 31 is located at a side of the length direction of the steam valve 30, the steam outlet 33 is located at an end of the length direction of the steam valve 30, the steam outlet 33 is located in the installation passage 15 when the length of the steam valve 30 is shorter than the length of the installation passage 15, and the steam outlet 33 may protrude outside the intermediate port 113 through the installation passage 15 when the length of the steam valve 30 is longer than the length of the installation passage 15.

The axial direction of the installation channel 15 and the axial direction of the transition pipe section 13 can be consistent or can be arranged in an included angle.

When the extension direction of the guide pipe section 11 is consistent with that of the transition pipe section 13, that is, the heating pipeline 10 extends in a straight shape. The axis of the installation channel 15 is arranged at an angle to the axis of the transition pipe section 13, and may be perpendicular to each other.

When the diversion pipe section 11 and the extension direction of the transition pipe section 13 are arranged at an included angle, that is, the heating pipeline 10 extends in a zigzag shape, or the heating pipeline 10 extends in a U shape. The axial direction of the installation channel 15 and the axial line of the transition pipe section 13 form an included angle, and the axial direction of the installation channel 15 and the axial direction of the transition pipe section 13 can also be consistent.

The above alternatives enable the steam generator 100 to set the position of the middle opening 113 according to different occasions to meet different requirements for the steam discharging direction in different occasions.

As shown in fig. 4 and 5, in this embodiment, the pipe segments 11 may be extended in a horizontal direction, the transition pipe segment 13 connecting two adjacent pipe segments 11 may be extended in a vertical direction, and an axial direction of the installation channel 15 may be identical to an axial direction of the transition pipe segment 13, so that the installation channel 15 may be opened above the transition pipe segment 13, so that the steam formed after being heated by the heating pipeline 10 can be discharged upwards to the middle port 113, which is beneficial to improving the discharge efficiency of the steam.

Referring to the embodiment shown in fig. 6, the installation channel 15 may be disposed in a horizontal direction, and the installation channel 15 may be disposed in a lateral direction of the transition pipe section 13, so that the steam formed after being heated by the heating pipe 10 can be discharged to the middle port 113 in the lateral direction, which facilitates the steam generator 100 to discharge steam in different directions.

When the steam valve 30 is positioned at the opening position, the steam inlet 31 is communicated with the guide pipe section 11 positioned at the upstream, and the steam outlet 33 is communicated with the middle port 113; the water inlet 111 is communicated with the middle port 113, and the liquid entering the guide pipe section 11 from the water inlet 111 enters the steam channel 35 through the steam inlet 31 after being heated by the guide pipe section 11, is further communicated to the steam outlet 33 and is discharged through the middle port 113.

When the steam valve 30 is in the closed position, the steam valve 30 blocks the intermediate port 113. The water inlet 111 and the steam outlet 115 are communicated by the transition pipe section 13, the liquid entering the diversion pipe section 11 from the water inlet 111 is heated by the upstream diversion pipe section 11 and then flows to the downstream diversion pipe section 11 through the transition pipe section 13, and after further heating, the formed steam is discharged from the steam outlet 115.

The steam valve 30 is provided with a steam inlet 31 at one end and a steam outlet 33 at the other end, and the steam inlet 31 may be specifically positioned at the side of the end of the steam valve 30. The end of the steam valve 30 provided with the steam outlet 33 can extend out of the middle port 113, so that the steam outlet 33 is positioned outside the mounting channel 15, the steam is directly discharged from the steam outlet 33, and the steam valve 30 extends out of the middle port 113, which is convenient for the connection of the driving mechanism to the steam valve 30, so that the driving mechanism can drive the movement of the steam valve 30. The end of the steam valve 30 provided with the steam outlet 33 may be located inside the installation passage 15 without protruding outside the intermediate port 113, and the steam is discharged through the intermediate port 113.

Further, a first sealing ring 41 is sleeved on the outer side of the steam valve 30, and the first sealing ring 41 is positioned on one side of the steam inlet 31 far away from the steam outlet 33;

when the steam valve 30 is located at the open position, the steam inlet 31 on the steam valve 30 is communicated with the upstream diversion channel, and the first sealing ring 41 seals the steam valve 30 and the transition pipe section 13, so that steam is prevented from leaking into the downstream diversion channel from the area between the steam valve 30 and the transition pipe section 13, and the effectiveness and the safety of the steam discharged by the steam generator 100 are ensured. The transition pipe section 13 is provided with a step part which can be matched with the first sealing ring 41, so that the sealing effect between the steam valve 30 and the transition pipe section 13 is better.

When the steam valve 30 is in the closed position, the steam inlet 31 of the steam valve 30 is located in the installation passage 15, and the first sealing ring 41 seals the steam valve 30 and the installation passage 15, so as to prevent steam from leaking from the intermediate port 113. The installation channel 15 is also provided with a step part which can be matched with the first sealing ring 41, so that the sealing effect between the steam valve 30 and the installation channel 15 is better.

The outer side of the steam valve 30 is also sleeved with a second sealing ring 43, the second sealing ring 43 is positioned on one side of the steam inlet 31 close to the steam outlet 33, and the second sealing ring 43 is sealed between the installation channel 15 and the steam valve 30. When the steam valve 30 is in the open position, the second steam valve 30 seals between the installation passage 15 and the steam valve 30, preventing steam from leaking through a gap between the installation passage 15 and the steam valve 30, so that steam is discharged only through the steam outlet 33 of the steam valve 30.

To facilitate control of the steam valve 30, the steam generator 100 further includes a driving mechanism connected to the steam valve 30 and driving the steam valve 30 to reciprocate in the extending direction of the mounting channel 15. The driving mechanism may be electrically connected to a controller of the steam generator 100, and a user may control the steam valve 30 by operating the controller, thereby facilitating selection and operation of the user.

The driving mechanism is a mechanism capable of realizing reciprocating motion, and specifically can be a linear motor, a hydraulic cylinder or an air cylinder and other common reciprocating motion driving mechanisms, and the driving mechanism is not limited.

The utility model discloses among the technical scheme, heating pipeline 10 is equipped with two at least middle mouths 113, and two middle mouths 113 set up along the interval on the extending direction of heating pipeline 10, and two middle mouths 113 divide heating pipeline 10 into three at least water conservancy diversion pipeline sections 11. The steam generator 100 includes at least two steam valves 30, and the two steam valves 30 are respectively disposed corresponding to the two middle ports 113. Each steam valve 30 may conduct the heating pipe 10 upstream thereof to the intermediate port 113 corresponding to the steam valve 30, or the steam valve 30 may conduct the heating pipe 10 upstream and downstream thereof and close the corresponding intermediate port 113.

In the above solution, the steam generator 100 may have three different ways of discharging steam, which may be defined as: short flow channel mode, medium flow channel mode and long flow channel mode. The heating length of the corresponding heating duct 10 in the short flow path mode is the shortest, that is, the mode of discharging the steam at the intermediate port 113 located upstream. The heating length of the heating duct 10 corresponding to the middle flow path mode is longer than that of the shorter flow path mode, that is, the mode of discharging the steam at the middle port 113 located downstream. The heating length of the heating pipe 10 corresponding to the long flow path mode is the longest, that is, the mode in which the steam outlet 115 discharges the steam. The three steam outlet modes can provide more diversified selections for the user.

It can be understood that more intermediate ports 113 may be further provided on the heating tube 10, and correspondingly, more steam valves 30 are correspondingly provided on the steam generator 100, so that the heating tube 10 of the steam generator 100 can be divided into more guide tube segments 11, so that the steam generator 100 can discharge steam in more various modes to meet more use requirements.

At least two temperature sensors 50 are further arranged on the heating pipeline 10, one temperature sensor 50 detects the steam temperature at the middle port 113, the other temperature sensor 50 detects the steam temperature at the steam outlet 115, and the heating pipeline 10 adjusts the heating value according to the temperature value detected by the temperature sensor 50.

The two temperature sensors 50 may be respectively disposed at the two diversion pipelines, or may be respectively disposed at the steam outlet 33 of the steam valve 30 and the steam outlet 115 of the heating pipeline 10, so that the temperature value detected by the temperature sensor 50 is closer to the temperature of the discharged steam.

According to the temperature value fed back by the temperature sensor 50, the heating pipeline 10 can adjust the temperature for heating the liquid, so that the water vapor temperature of the middle port 113 and the steam outlet 115 can be controlled to meet different requirements of users.

The steam generator 100 is provided with a water supply mechanism connected to the heating pipe 10 and communicated with the water inlet 111.

In addition to the above-described adjustment of the exhaust steam temperature, the temperature sensor 50 may be connected to a water supply mechanism that adjusts a supply water flow rate and/or a supply water flow rate according to a temperature value detected by the temperature sensor 50. The steam temperature or the steam outlet amount of the steam outlet and the steam outlet 115 can also reach different requirements by adjusting different water supply flow rates and water supply flow rates.

Referring to fig. 8, in the short flow path mode, the upstream steam valve 30 is controlled to be in the open position, the steam valve 30 conducts the guide pipe section 11 upstream of the steam valve 30 and the intermediate port 113 at the steam valve 30, when the structure of the steam valve 30 is the condition that the steam valve extends from the intermediate port 113, the steam valve 30 conducts the guide pipe section 11 upstream of the steam valve 30 and the steam outlet 33 on the steam valve 30, the guide pipe section 11 downstream of the steam valve 30 is blocked by the steam valve 30, so that the part of the heating pipeline 10 from the water inlet 111 to the intermediate port 113 upstream heats the liquid, so that the steam is only discharged from the intermediate port 113 upstream and does not flow into the guide pipe section 11 downstream of the steam valve 30, and the steam generator 100 has the short flow path mode. The heating conduit 10 for heating the liquid is from the water inlet 111 to the upstream intermediate port 113. The downstream intermediate port 113 and the steam outlet 115 may be blocked or not blocked, and of course, in the case where the downstream intermediate port 113 and the steam outlet 115 are blocked, the steam generator 100 is more safe to use.

Referring to fig. 9, in the intermediate flow path mode, when the upstream steam valve 30 is controlled to be in the closed position, the upstream steam valve 30 conducts the upstream and downstream flow guide pipe sections 11, and blocks the intermediate port 113 corresponding to the upstream steam valve 30, the downstream steam valve 30 is controlled to be in the open position, the downstream steam valve 30 conducts the upstream flow guide pipe section 11 and the intermediate port 113 corresponding to the downstream flow guide pipe section 11, the downstream flow guide pipe section 11 of the steam valve 30 is blocked by the steam valve 30, so that the part of the heating pipe 10 from the water inlet 111 to the downstream intermediate port 113 heats the liquid, and the steam is discharged from only the downstream intermediate port 113. In the medium flow path mode, the heating pipe 10 for heating the liquid is longer than in the short flow path mode.

Referring to fig. 10, in the long flow path mode, the upstream steam valve 30 is controlled to be in a closed position, the upstream steam valve 30 conducts the upstream and downstream guide pipe sections 11, and blocks the intermediate port 113 corresponding to the upstream steam valve 30; controlling the downstream steam valve 30 to be in a closed position, wherein the downstream steam valve 30 conducts the guide pipe sections 11 upstream and downstream of the downstream steam valve 30 and blocks the corresponding intermediate port 113 of the downstream steam valve 30, and the part of the heating pipeline 10 from the water inlet 111 to the steam outlet 115 heats the liquid, so that the steam is only discharged from the steam outlet 115. In the long flow path mode, the heating pipe 10 for heating the liquid is longer than in the medium flow path mode.

A temperature sensor 50 may be provided on each of the manifold sections 11 to adjust the amount of heat generated from the heating pipeline 10 or to adjust the water supply of the water supply mechanism according to the detected temperature.

In the short flow channel mode, the medium flow channel mode and the long flow channel mode, the lengths of the heating pipes 10 for heating liquid are different, and a user can select different working modes according to different use requirements, so that the steam generator 100 has more use functions and meets more use requirements of the user.

Further, a corresponding valve body may be disposed at the steam outlet 115 of the heating pipeline 10 to open or close the steam outlet 115, so that the steam outlet 115 is closed when not in use, the heating pipeline 10 is protected, liquid or steam in the heating pipeline 10 may be prevented from leaking, and safety of the steam generator 100 in use is ensured.

The utility model discloses still provide a domestic appliance, this domestic appliance includes shell and steam generator 100, and above-mentioned embodiment is referred to this steam generator 100's concrete structure, because this domestic appliance has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. Wherein, a cooking space is formed in the housing, the steam generator 100 is connected to the housing, and the middle port 113 and the steam outlet 115 of the steam generator 100 are communicated to the cooking space.

Still further be provided with the inner bag in this domestic appliance's the shell, this inner bag encloses to close and forms the culinary art space. When the middle opening 113 discharges steam upwards, the middle opening 113 can be arranged at the bottom of the inner container, so that the household appliance can heat food more fully from the bottom. When the middle opening 113 discharges steam laterally, the middle opening 113 can be arranged on the side wall of the inner container, so that the household appliance can heat food from all directions.

The control method of the steam generator 100 includes the steps of:

controlling the steam generator 100 to select a control mode;

controlling the heating pipeline 10 to heat;

judging whether the heating temperature T is greater than a preset temperature T1, if not, controlling the heating pipeline 10 to continue heating;

if the heating temperature T is greater than the preset temperature T1, judging whether the heating time T is greater than the preset time T1, and if not, controlling the heating pipeline 10 to continue heating;

and if the heating time t is greater than the preset time t1, controlling the heating pipeline 10 to stop heating.

When the steam generator 100 has one intermediate port 113 and one steam valve 30, the steam generator 100 has two operation modes, a short flow path mode and a long flow path mode, respectively.

Controlling the steam generator 100 to select the control mode includes the steps of:

controlling the steam generator 100 to detect a control mode;

when the control mode is detected to be the short runner mode, the driving mechanism drives the steam valve 30 to be located at the opening position;

when the control mode is detected as the long flow path mode, the drive mechanism drives the steam valve 30 to be in the closed position.

When the steam generator 100 has two intermediate ports 113 and two steam valves 30, the steam generator 100 has three operation modes, which are a short flow path mode, a middle flow path mode, and a long flow path mode, respectively.

When the control mode is detected to be the short runner mode, the driving mechanism drives the steam valve 30 positioned at the upstream to be positioned at the opening position;

when the control mode is detected to be the middle runner mode, the driving mechanism drives the steam valve 30 positioned at the upstream to be positioned at the closed position, and drives the steam valve 30 positioned at the downstream to be positioned at the open position;

when the control mode is detected to be the long runner mode, the driving mechanism drives the two steam valves 30 to be in the closed position.

The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims (11)

1. A steam generator, comprising:

the heating pipeline is provided with a water inlet, a steam outlet and at least one middle opening positioned between the water inlet and the steam outlet;

the steam valve is arranged on the heating pipeline and positioned at the middle port, and can conduct the heating pipeline at the upstream of the steam valve and the middle port and block the heating pipeline at the downstream of the steam valve; or, the steam valve can conduct the heating pipelines at the upstream and the downstream of the steam valve and block the intermediate port.

2. The steam generator of claim 1, wherein the heating conduit comprises at least two flow conduit segments and a transition conduit segment connecting the two flow conduit segments, the water inlet is disposed in one of the flow conduit segments and the steam outlet is disposed in the other of the flow conduit segments.

3. The steam generator of claim 2, wherein the heating conduit further comprises a mounting channel, the mounting channel communicating the transition duct section and the intermediate port, the steam valve being movably received in the mounting channel; the steam valve extends into the transition pipe section to conduct the heating pipeline and the intermediate port on the upstream of the transition pipe section and seal the diversion pipe section on the downstream of the transition pipe section; the steam valve at least partially exits the transition pipe section to conduct the flow guide pipe sections upstream and downstream of the transition pipe section and block the intermediate port.

4. The steam generator of claim 3, wherein an axial direction of the mounting channel is angled relative to an axial direction of the transition tube segment.

5. The steam generator of claim 3, wherein an axial direction of the mounting channel coincides with an axial direction of the transition tube segment.

6. The steam generator of claim 3, wherein the steam valve is provided with a steam inlet and a steam outlet, and a steam passage communicating the steam inlet and the steam outlet;

the steam inlet is communicated with the guide pipe section positioned at the upstream, and the steam outlet is communicated with the middle port;

or the steam valve blocks the middle port.

7. The steam generator of claim 6, wherein the steam inlet is provided at a side of one end of the steam valve, the steam outlet is provided at the other end of the steam valve, and the end of the steam valve provided with the steam outlet extends from the middle port.

8. The steam generator of claim 7, wherein a first sealing ring is sleeved on an outer side of the steam valve, and the first sealing ring is positioned on a side of the steam inlet away from the steam outlet;

the first sealing ring seals the steam valve and the transition pipe section;

or, the first sealing ring seals the steam valve and the mounting channel.

9. The steam generator of claim 8, wherein a second sealing ring is further sleeved on the outer side of the steam valve, and the second sealing ring is positioned on one side of the steam inlet close to the steam outlet;

when the steam valve conducts the heating pipeline on the upstream of the steam valve and the intermediate port and blocks the heating pipeline on the downstream of the steam valve, the second sealing ring seals the mounting channel and the steam valve.

10. The steam generator according to any one of claims 1 to 9, wherein the heating duct is provided with at least two intermediate ports, the two intermediate ports being spaced apart along an extending direction of the heating duct;

the steam generator comprises at least two steam valves, and the two steam valves are respectively arranged corresponding to the two middle ports.

11. An electric household appliance comprising a housing according to any one of claims 1 to 10, a cooking space being formed in the housing, the steam generator being connected to the housing, the steam generator having a central opening and a steam outlet opening communicating into the cooking space.

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