CN115875661A - Heating system for steam household appliance and steam household appliance - Google Patents

Abstract

The invention discloses a heating system for a steam household appliance and the steam household appliance, wherein the heating system for the steam household appliance comprises a steam generator, the steam generator comprises: a steam generating tank and a heating element. The steam generating box is internally provided with a liquid storage space; the heating element is arranged on the steam generating box; the heating system at least has a steam state and a barbecue state, when the heating system is in the steam state, liquid is contained in the liquid storage space, the heating parts can heat the liquid, when the heating system is in the barbecue state, the liquid storage space does not contain the liquid, and the heating parts can radiate heat outwards. This heating system can utilize same set of heating structure to realize producing two kinds of functions of steam heating food and direct radiant heating barbecue food respectively to make this heating system's functionality stronger, and the structure is simpler, and the space that occupies is littleer, so that the overall structure of steam household electrical appliances is compacter, but also can reduce the manufacturing cost of steam household electrical appliances.

Description

Heating system for steam household appliance and steam household appliance

Technical Field

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

Background

Among the prior art, evaporate roast integrative steam household electrical appliances's inside needs to set up two sets of heating structures such as the heating structure that can produce steam and utilize steam heating food and the heating structure that can direct radiation barbecue food respectively, so that it can realize utilizing two kinds of functions such as steam heating food and direct radiation barbecue heating food, because two sets of heating structures set up respectively that the space that occupies in the inside of evaporating roast integrative steam household electrical appliances is great, lead to evaporating roast integrative steam household electrical appliances's whole volume great, inner structure is more complicated, manufacturing cost is higher, there is the space of improving.

Disclosure of Invention

The present invention aims to solve at least to some extent one of the above-mentioned technical problems of the prior art. Therefore, the invention provides a heating system for a steam household appliance, which can respectively realize two functions of generating steam to heat food and directly radiating and heating barbecue food by using the same set of heating structure, so that the heating system has stronger functionality, simpler structure and smaller occupied space, the whole structure of the steam household appliance is more compact, and the manufacturing cost of the steam household appliance can be reduced.

The invention also provides a steam household appliance with the heating system for the steam household appliance.

A heating system for a steam appliance according to an embodiment of the present invention includes: a steam generator, the steam generator comprising: the steam generating box is internally provided with a liquid storage space and is provided with a liquid inlet and a steam outlet which are respectively communicated with the liquid storage space, and the heating element is arranged on the steam generating box; wherein the heating system has at least a vapor state and a grill state, with the heating system in the vapor state having liquid in the liquid storage space and the heating component capable of heating the liquid, and with the heating system in the grill state having no liquid in the liquid storage space, the heating component capable of radiating heat outwardly.

According to the heating system for the steam household appliance, the heating system can respectively realize two functions of generating steam to heat food and directly radiating and heating barbecue food by using the same set of heating structure, so that the heating system has stronger functionality, simpler structure and smaller occupied space, the whole structure of the steam household appliance is more compact, and the manufacturing cost of the steam household appliance can be reduced.

In addition, the heating system for the steam household appliance according to the embodiment of the invention can also have the following additional technical characteristics:

according to some embodiments of the invention, the heating system for a steam appliance further comprises: the liquid pump is communicated with the liquid inlet, is suitable for pumping liquid into the liquid storage space when the heating system is in the steam state, and stops running when the heating system is in the barbecue state.

According to some embodiments of the invention, at least a portion of the heating element is disposed within the liquid storage space.

According to some embodiments of the invention, a portion of the heating element located within the liquid storage space is completely immersed within the liquid when the heating system is in the vapor state.

According to some embodiments of the invention, the heating element is disposed near a bottom wall of the steam generating tank, and the liquid inlet is disposed above the heating element.

According to some embodiments of the invention, the heating element is arranged outside the liquid storage space and is arranged flush against a side wall and/or a bottom wall of the steam generating tank.

According to some embodiments of the invention, the steam outlet is open at an upper end of the steam generating tank.

According to some embodiments of the invention, the steam generating tank is configured as a transparent piece.

According to some embodiments of the invention, the steam generating box is configured as a piece of quartz glass.

According to another aspect of the invention, a steam appliance comprises a heating system for a steam appliance as described above.

Drawings

FIG. 1 is a schematic structural diagram of a heating system according to an embodiment of the present invention;

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

fig. 3 is a schematic structural view of a steam appliance according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a steam home appliance according to another embodiment of the present invention.

Reference numerals:

steam household electrical appliances 1000, heating system 100, box 200, steam generator 10, steam production case 1, liquid storage space 11, inlet 12, steam gas outlet 13, heating member 2, liquid pump 3, water box 4, water pipe 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

A heating system 100 for a steam appliance 1000 according to an embodiment of the present invention is described below with reference to fig. 1 to 4.

The heating system 100 for the steam home appliance 1000 according to an embodiment of the present invention may include: a steam generator 10.

As shown in fig. 1 and 2, the heating system 100 according to the embodiment of the present invention is suitable for a steam and bake integrated steam appliance 1000, for example, a steam oven. Evaporate roast integrative steam household electrical appliances 1000 and can enough produce steam to through steam heating food, also can be through heat radiation direct heating barbecue food, two kinds of functions integration are on a household electrical appliances, make evaporate roast integrative steam household electrical appliances 1000 and have better practicality.

Because the inside of traditional integrative steam household electrical appliances of roast evaporate needs to set up respectively and to produce two sets of heating structures such as the heating structure that can steam and utilize steam heating food and the heating structure that can direct radiation barbecue food to make it can realize utilizing two kinds of functions such as steam heating food and direct radiation barbecue heating food, because two sets of heating structures set up respectively that the space that occupies in the inside of the integrative steam household electrical appliances of roast evaporate greatly, lead to evaporating the whole volume of the integrative steam household electrical appliances of roast great, inner structure is more complicated, manufacturing cost is higher.

Therefore, the embodiment of the invention designs the heating system 100 which can use the same set of heating structure to heat food by steam and directly radiate the heated barbecue food, so that the heating system 100 has a simpler structure and occupies a smaller space. From this for steam household electrical appliances 1000 is inside only to need to install one set of heating structure can realize producing two kinds of functions of steam heating food and radiant heating food, thereby makes steam household electrical appliances 1000's whole volume can set up littleer, and manufacturing cost can obtain effectual reduction.

Wherein the steam generator 10 includes: the steam generating box 1 and the heating element 2, the steam generating box 1 has a liquid storage space 11 therein, the liquid storage space 11 can store the liquid to be heated and evaporated, for example, liquid water, and the liquid can be heated in the liquid storage space 11 and converted into water vapor by the liquid. The steam generating box 1 is provided with a liquid inlet 12 and a steam outlet 13, the liquid inlet 12 and the steam outlet 13 are respectively communicated with the liquid storage space 11, external liquid is suitable for entering the liquid storage space 11 from the liquid inlet 12 and is converted into steam from the liquid after being heated in the liquid storage space 11, and the converted steam is suitable for entering the box body 200 of the steam household appliance 1000 through the steam outlet 13 and is used for steam heating food in the box body 200. Further, the heating member 2 is provided on the steam generating tank 1 so that the heating member 2 can heat the liquid in the liquid storage space 11.

Wherein the heating system 100 has at least a steam state and a grill state, when the heating system 100 is in the steam state, the liquid is in the liquid storage space 11, the liquid can be added from the liquid inlet 12 or other channels, the heating component 2 can heat the liquid, so that the liquid is converted into steam and discharged through the gas outlet 13 to heat food, and when the heating system 100 is in the grill state, the liquid is not in the liquid storage space 11, the heating component 2 can pass through the steam generating box 1 to radiate heat outwards, so that the grill food can be directly heated by the radiated heat. Of course, there is also a state of simultaneous steaming and baking.

According to the heating system 100 for the steam household appliance 1000 of the embodiment of the present invention, the heating system 100 can respectively realize two functions of generating steam to heat food and directly radiating to heat barbecue food by using the same set of heating structure, so that the heating system 100 has stronger functionality, simpler structure and smaller occupied space, the overall structure of the steam household appliance 1000 is more compact, and the manufacturing cost of the steam household appliance 1000 can also be reduced.

Alternatively, the heating member 2 may include: at least one of a quartz heating pipe, a carbon fiber heating pipe, a halogen pipe, a graphene heating pipe, a metal pipe and an electrothermal film heating pipe.

As shown in fig. 1, the heating system 100 further includes: the liquid pump 3 is connected with the liquid inlet 12, when the heating system 100 is in a steam state, the liquid pump 3 is suitable for pumping liquid into the liquid storage space 11, and when the heating system 100 is in a barbecue state, the liquid pump 3 stops running to prevent the liquid from entering the liquid storage space 11, so that the purpose of automatic switching between the steam state and the barbecue state is realized.

Specifically, after the user selects the steam mode on the control panel of the steam appliance 1000, the liquid pump 3 of the heating system 100 starts to operate to pump the liquid into the liquid storage space 11, and when the liquid level reaches a certain height, the heating element 2 starts to operate to heat the liquid in the liquid storage space 11, so that the heated liquid is converted into steam and enters the box 200 through the steam outlet 13 to steam-heat the food in the box 200, and the liquid pump 3 is adapted to automatically pump the liquid into the liquid storage space 11 according to the liquid level in the liquid storage space 11, so that the liquid in the liquid storage space 11 is maintained within a certain height range. When the user selects the grill mode on the control panel of the steam home appliance 1000, the liquid pump 3 is not operated, and the heating member 2 is operated, and the liquid is not stored in the liquid storage space 11, so that the heating member 2 can directly heat the roast food by radiation.

Further, referring to fig. 1, the heating system 100 further includes: water box 4 and water pipe 5, water box 4 are suitable for storing liquid, and water pipe 5 is suitable for to be connected between water box 4 and steam generation case 1 to in carrying liquid storage space 11 with the liquid in the water box 4, liquid pump 3 sets up on water pipe 5, for the transport of liquid provides power, thereby make liquid pump 3 can be in the liquid storage space 11 liquid not enough and in time to liquid storage space 11 interior pump liquid when needing the liquid feeding, in order to ensure steam household electrical appliances 1000's security.

According to some embodiments of the present invention, as shown in fig. 2, at least a portion of the heating member 2 is disposed within the liquid storage space 11 such that at least a portion of the heating member 2 is capable of directly heating the liquid stored in the liquid storage space 11. Therefore, not only can the heat loss of the heating member 2 be reduced, but also the steam generation efficiency of the heating system 100 in the steam state can be improved, so that the heating system 100 has a better heating effect.

Further, when the heating system 100 is in a vapor state, a portion of the heating member 2 located in the liquid storage space 11 is completely immersed in the liquid so that the liquid can completely absorb the heat generated by the heating member 2. Therefore, the steam generation efficiency of the heating system 100 in the steam state can be improved, and the heat generated by the heating element 2 can not be directly radiated to heat food, so that the influence on steam heating cooking is avoided, and the steam heating effect of the steam household appliance 1000 is further improved.

Still further, referring to fig. 2, the heating member 2 is disposed near the bottom wall of the steam generating tank 1 to make the heating member 2 heat the liquid more uniformly and thoroughly, thereby reducing the time for the heating member 2 to heat the liquid in the steam generating tank 1 to the temperature at which steam can be generated from the normal temperature, so as to improve the heating efficiency. The liquid inlet 12 is provided above the heating member 2 to allow the liquid to smoothly flow into the liquid storage space 11, avoiding difficulty in feeding the liquid.

According to other embodiments of the present invention, the heating element 2 is disposed outside the liquid storage space 11 and attached to a side wall and/or a bottom wall (not shown) of the steam generating box 1, so that the heating element 2 can indirectly heat the liquid in the liquid storage space 11 by heating the side wall and/or the bottom wall of the steam generating box 1.

As shown in fig. 2, since the density of the water vapor is low, the water vapor outlet 13 is provided at the upper end of the steam generating box 1, so that the water vapor can be volatilized outwards conveniently, and the liquid in the liquid storage space 11 can be prevented from leaking outwards from the water vapor outlet 13, thereby ensuring the reliability of the steam generating box 1.

According to some embodiments of the invention, the steam generating tank 1 is constructed as a transparent piece. From this, can make the radiant heat that heating member 2 produced can penetrate steam mostly and produce case 1 and directly radiate to in the box 200 to directly heat food, and, radiant heat penetrates the in-process energy that steam produced case 1 and is absorbed by steam production case 1 and produce the loss less, thereby reached the purpose that improves energy utilization, and then improved the heating efficiency to food under the barbecue mode.

Preferably, the steam generating chamber 1 is constructed as a piece of quartz glass. The quartz glass piece is transparent, has good high temperature resistance and corrosion resistance, and is not easy to damage, so that the steam generation box 1 has better performance.

According to some embodiments of the present invention, as shown in fig. 3, the steam generator 10 is adapted to be disposed on a top plate of the cabinet 200 so as to steam-heat or grill food in the cabinet 200.

According to other embodiments of the present invention, as shown in FIG. 4, the steam generator 10 is adapted to be disposed under the bottom plate of the case 200, and the bottom plate is adapted to be disposed as a transparent member having ventilation holes so that steam generated by the steam generator 10 and radiated heat can pass through the bottom plate to reach the food inside the case 200.

As a preferred embodiment, the position of the heating components 2 relative to the bottom wall of the steam generating chamber 1 is adjustable to vary the height of the heating components 2 relative to the liquid surface to thereby enhance the steam generating effect, and the position of the heating components 2 relative to the food to be cooked is varied by varying the position of the heating components 2 when in the grill mode to achieve different degrees of grill cooking.

In other embodiments, the heating element 2 may be configured as a resistance tube having a certain resistance value according to its material characteristics, and capable of converting electric energy into heat energy, and the power supply device may supply the electric energy to the resistance tube so that the resistance tube can generate heat by itself. The resistance tube is internally provided with a liquid flowing space, so that the inside and the outside of the resistance tube can heat liquid water to generate water vapor, and the generation efficiency of the vapor can be improved. After power supply unit supplies power to the resistance tube, the resistance tube can turn into heat energy with electric energy, and the heat that the resistance tube produced can direct liquid state water in the liquid flow space of heating simultaneously and the resistance tube outside to make the liquid state water that flows into in the liquid storage space from external liquid source can be turned into steam by the liquid state after being heated, and carry the steam after will converting inside the steam household electrical appliances, so that the steam after the messenger heats can heat the food of steam household electrical appliances inside and cook.

Wherein, the steam generator still includes: liquid water can be stored to the water box to in time for resistance tube provides liquid water in order to produce water vapor, water piping connection is between inlet and water box, in order to carry the liquid water of storing in the water box in the liquid storage space, the water pump setting is on the water pipe between water box and resistance tube, provides power for the transport of liquid water.

According to some embodiments of the invention, the power supply device comprises: the power supply can be DC power supply or AC power supply, and the power supply wire is electrically connected between the power supply and the resistance tube to transmit the current of the power supply to the two ends of the resistance tube, thereby heating the liquid water by the heat effect generated by the current flowing through the resistance tube and converting the liquid water into water vapor.

Furthermore, the number of the power supply leads is two, and the two power supply leads are respectively connected to the two outermost ends of the resistance tube in the extending direction. Two power supply wires are suitable for and connect respectively at the feed liquor end of resistance tube and give vent to anger to hold promptly to make whole resistive material of resistance tube can both receive adding of both ends voltage, make whole resistance tube can both produce heat under the effect of power, thereby make the resistance tube can have the biggest area of generating heat, and then make the heating effect of resistance tube better. From this, improved the heating efficiency of resistance tube, and then promoted steam generator's steam production efficiency.

According to some embodiments of the invention, the outer side of the resistance tube is provided with an insulating protective layer, wherein the insulating protective layer can play an effective insulating role. From this, when the resistance tube leakage or other trouble appeared, the insulating protection layer can avoid the resistance tube to take place the short circuit to can improve steam generator's operating stability, and still can avoid the resistance tube and the phenomenon that the lapped condition appears and take place the short circuit with peripheral spare.

Further, the resistance value of the resistance tube is related to the material of the resistance tube, and the resistance tube can be constructed into a metal tube, a silicone tube or a graphite tube, wherein the manufacturing materials of the metal tube, the silicone tube and the graphite tube are low in price, the whole manufacturing cost of the steam generator can be reduced, and the resistance tube has good resistivity, is hard in texture and not easy to damage, so that the resistance tube has better heating effect and setting stability.

According to some embodiments of the present invention, the resistance value of the resistance tube is further related to the tube length and the wall thickness of the resistance tube, specifically, the thinner the wall thickness of the resistance tube, the larger the resistance, the lower the power, the longer the tube length of the resistance tube, the larger the resistance, the lower the power, therefore, the wall thickness of the resistance tube is D, D is greater than or equal to 0.1mm and less than or equal to 10mm, that is, the wall thickness of the resistance tube is controlled between 0.1mm and 10mm, so as to enable the resistance tube to have a larger resistance value on the premise of ensuring the overall strength of the resistance tube, so that the resistance tube can release more heat to heat the liquid water to generate water vapor.

Furthermore, the length of the resistance tube is L, L is more than or equal to 5cm and less than or equal to 3m, namely, the length of the resistance tube 1 is controlled between 5cm and 3m, so that the resistance tube has a larger resistance value on the premise of ensuring the whole weight and volume of the resistance tube within a reasonable range, and the resistance tube can release more heat to heat liquid water to generate water vapor.

According to some embodiments of the invention, the power supply lead is provided with an on-off protection device, which can ensure the operation safety of the steam generator. Namely, when the water in the water box is insufficient or the circuit is short-circuited or other abnormal conditions occur, the on-off protection device is suitable for automatically disconnecting the electric connection between the power supply and the resistance tube so as to avoid the occurrence of dangerous conditions such as circuit damage or thermal runaway caused by the fact that the power supply continuously supplies power to the resistance tube, and therefore the reliability and the safety of the steam household appliance can be improved.

According to some embodiments of the invention, in order to conveniently adjust the temperature and efficiency of steam generated by the steam generator so as to realize free switching of different cooking modes, the embodiment of the invention is further provided with a voltage adjusting device on the power supply wire so as to adjust the heating power of the resistance tube by adjusting the voltage at two ends of the resistance tube, thereby achieving the purpose of changing the efficiency of the resistance tube for generating steam and the temperature of the generated steam.

A steam appliance 1000 according to another aspect embodiment of the present invention includes the heating system 100 for the steam appliance 1000 described in the above embodiments. Other configurations of the steam appliance 1000 are known in the art and well known to those skilled in the art, and thus, a detailed description of other configurations of the steam appliance 1000 is not provided herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A heating system for a steam appliance, comprising:

a steam generator, the steam generator comprising: the steam generating box is internally provided with a liquid storage space and is provided with a liquid inlet and a steam outlet which are respectively communicated with the liquid storage space, and the heating element is arranged on the steam generating box;

wherein the heating system has at least a vapor state and a grill state, with the heating system in the vapor state having liquid in the liquid storage space and the heating component capable of heating the liquid, and with the heating system in the grill state having no liquid in the liquid storage space, the heating component capable of radiating heat outwardly.

2. The heating system for a steam appliance according to claim 1, further comprising: the liquid pump is communicated with the liquid inlet, is suitable for pumping liquid into the liquid storage space when the heating system is in the steam state, and stops running when the heating system is in the barbecue state.

3. A heating system for a steam appliance as claimed in claim 1, wherein at least a portion of the heating element is disposed within the liquid storage space.

4. A heating system for a steam appliance as claimed in claim 3, wherein the portion of the heating element located within the liquid storage space is fully immersed within the liquid when the heating system is in the steam state.

5. A heating system for a steam appliance as claimed in claim 3, wherein the heating element is provided adjacent to a bottom wall of the steam generating tank, and the liquid inlet is provided above the heating element.

6. A heating system for a steam appliance as claimed in claim 1, wherein the heating element is disposed outside the liquid storage space and is attached to a side wall and/or a bottom wall of the steam generating tank.

7. A heating system for a steam appliance according to claim 1, wherein the steam outlet is opened at an upper end of the steam generating tank.

8. A heating system for a steam appliance according to claim 1, wherein the steam generating tank is constructed as a transparent member.

9. The heating system for a steam appliance according to claim 8, wherein the steam generating tank is constructed as a quartz glass piece.

10. A steam appliance comprising a heating system for a steam appliance according to any one of claims 1 to 9.

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