CN105090920A - Steam heating device with improved structure of water inlet of heating body - Google Patents
Steam heating device with improved structure of water inlet of heating body Download PDFInfo
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- CN105090920A CN105090920A CN201510582155.5A CN201510582155A CN105090920A CN 105090920 A CN105090920 A CN 105090920A CN 201510582155 A CN201510582155 A CN 201510582155A CN 105090920 A CN105090920 A CN 105090920A
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- water inlet
- steam
- calandria
- intake tunnel
- venthole
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Abstract
The invention discloses a steam heating device with the improved structure of a water inlet of a heating body. The steam heating device comprises a shell, the heating body, the water inlet and a steam outlet. The heating body comprises a base and a heating main body extending perpendicularly from one side of the base, and the heating main body comprises a water inlet channel, a steam outlet channel and a heating tube arranged between the water inlet channel and the steam outlet channel. The water inlet penetrates the base, one end of the water inlet is arranged on the base in a protruding manner and used for being connected with a water source, and the other end of the water inlet is provided with a sprayer and extends into the water inlet channel. A plurality of tiny water outlet holes are evenly formed in the side wall of the bottom of the sprayer, and water flows in from the water inlet and is scattered onto the tube wall of the water inlet channel through the sprayer. The heating device has an instant heating function and a good heating effect; the efficiency of conversion from water to steam is high, and the water content in steam is low; and meanwhile the technical problem that a heating tube is prone to blockage is solved.
Description
Technical field
The present invention relates to a kind of heater, more particularly, the present invention relates to a kind of steam heater of calandria water inlet modified node method.
Background technology
Steam heater is widely used on the equipment in various field, on the such as housed device such as steam mop, Garment Steamer Machine.The operation principle of steam heater is by water heating until be vaporized into steam, the work such as the housed device such as steam mop, Garment Steamer Machine utilizes HCS to carry out cleaning, sterilization, flatiron, and time saving and energy saving, economy is economical again, for user provide numerous convenient.
Existing steam heater is generally boiler type or coiled, wherein boiler type steam heater produces steam by aqueous water surface after adopting and constantly heating the water in tank, but the shortcoming of this structure is: must discharge in time after the water be stored in container uses at every turn, otherwise can go bad generation sewage, and the boiling of aqueous water can cause equipment drainage when producing steam, the coil pipe of coiled steam heater connects water source and steam (vapor) outlet respectively, steam is vaporized into after carrying out heat exchange by heat exchanger and heater in coils from the current at water source, coil pipe is in the relation of serial connection in heat exchange, the front and back temperature difference is caused to differ greatly, make the heating efficiency of whole steam heater and heat utilization ratio lower, reduce the aridity of steam simultaneously, and water inlet and delivery port are positioned at the outside of heating tube, the effect converting steam to is poor, still the part globule can be accompanied in steam, go out vapour poor effect, simultaneously, the volume of coil pipe is little, the water being mixed with impurity enters and easily results in blockage, the performance of steam generator is low thus.
Simultaneously, the water inlet of existing calandria water inflow nozzle is all manhole structure, water is directly sprayed onto bottom calandria by water inlet, do not utilize the heat of the inlet channel inwall of heating kettle, so change into the weak effect of steam, cause from calandria steam moisture out higher, vaporization effect is bad, reduces calandria serviceability.
Therefore, need badly now and a kind ofly both can improve the efficiency that water converts steam to, make full use of heat energy, again can anticlogging heater.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above, and the advantage will illustrated at least is below provided.
A further object of the invention is to provide a kind of steam heater of calandria water inlet modified node method, be provided with a kind of water inlet structure of calandria water inflow nozzle, water enters water inflow nozzle, the several tiny inlet opening of sidewall processing bottom water inflow nozzle, extrude from the aperture of water inflow nozzle sidewall, be scattering on the inwall of calandria inlet channel, obtain abundant heating, be vaporized into steam.Heater of the present invention has instantaneous heating function and heating effect is good, and the efficiency that water converts steam to is high, and in steam, moisture content is low, solves the susceptible to plugging technical problem of water back simultaneously.
In order to realize, according to these objects of the present invention and other advantage, providing a kind of steam heater of calandria water inlet modified node method, comprising:
Housing, arrange the accommodating cavity of open at one end in it, described housing bottom is provided with perforate;
Calandria, it comprises pedestal and from the vertically extending heater body in pedestal side, described base seat lid is located at described housing opened portion, described heater body is arranged in described accommodating cavity, heating chamber is formed between described calandria and the inwall of housing, described heater body comprises intake tunnel, go out vapour passage and be arranged on described intake tunnel and the heating tube going out vapour passage central authorities, described intake tunnel is vertically opened in one end of described heater body along the length direction of described heater body, described go out vapour passage correspondence be arranged on the other end of described heater body, the one end open of described intake tunnel flows out for steam, with go out on vapour passage described in described pedestal link to be provided with steam access aperture, steam in described heating chamber enters out vapour passage again from the open end ejection gone out vapour passage from described steam access aperture,
Water inlet, its through described pedestal, described water inlet one end is projecting on described pedestal, for being connected with water source, the described water inlet other end is provided with shower nozzle and extends into described intake tunnel inside, sidewall evenly offers several tiny apopores bottom described shower nozzle, water flows into from water inlet, scatters on the tube wall of intake tunnel by shower nozzle; And
Venthole, it is arranged on described heater body, and described venthole one end is communicated with described open end, and the described venthole other end extends to described hull outside from described perforate.
Preferably, described heating tube is " U " type heating tube, is respectively provided with in two " U " type top ends of described heating tube the electrode extending outward described pedestal.
Preferably, described intake tunnel and go out the middle that vapour passage is positioned at a pair vertical heating tube of described heating tube.
Preferably, the pedestal of described calandria arranges buckle, the interface of described housing is arranged the draw-in groove matched with described buckle, calandria and housing adopt buckle, the mode of draw-in groove is tightly connected.
Preferably, the interface of the pedestal of described housing and calandria arranges housing seal circle.
Preferably, the aperture of described opening in shell equals venthole and the diameter of this opening in shell phase cross surface, sets out steam ports sealing ring at this phase cross surface place simultaneously.
Preferably, described perforate is circumferentially provided with annular boss, and described venthole sealing ring is fastened in the middle part of described venthole, and described boss is supported bottom venthole sealing ring.
Preferably, the external diameter of described heater body is less than the external diameter of described pedestal.
Preferably, described intake tunnel one end contacts with described pedestal madial wall, described water inlet runs through described pedestal, and interface sealing, described injector seals is arranged on described intake tunnel, and the length direction of described shower nozzle is consistent with the length direction of described intake tunnel, described shower nozzle open upper end, and be communicated with described intake tunnel, described shower nozzle sidewall bottom circumferentially evenly offers described apopore, and water source is communicated with described water inlet by filter.
Preferably, described venthole open at one end, and drawing from described perforate, the other end sidewall of described venthole offers several through holes, described through hole and described go out vapour channel connection.
The present invention at least comprises following beneficial effect:
1, the water inflow nozzle water inlet structure of the heater of this patent is on water inflow nozzle sidewall, open several tiny inlet opening, after water enters water inflow nozzle, under pressure, extrude from the aperture water inflow nozzle sidewall, parabolically state is scattered on the inlet channel inwall of calandria, adopt the design of special nozzle structure, current can be made to disperse, water is made to spray to larger space, current can be heated more fully, the efficiency being thereupon converted to steam improves, water fully contacts with calandria inlet channel inwall, vaporization effect is obvious, take full advantage of the heat of calandria, improve the overall serviceability of calandria,
2, water inlet and venthole are directly arranged on calandria, and intake tunnel, going out vapour passage, to be all arranged at the heater body of calandria inner, have both improve the efficiency that water converts steam to, and have taken full advantage of again the heat energy of calandria;
3, water inlet, intake tunnel and venthole, go out one side and another side that vapour passage lays respectively at heater body, steam heats around each position of calandria thus, can make full use of the heat of calandria, the efficiency that steam is changed is higher, quality of steam is better;
4, intake tunnel is because design is in calandria inside, not taking space outerpace, therefore can be designed as larger channel volume, avoiding the channel blockage problem brought because there being impurity.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of heater of the present invention;
Fig. 2 is described shell structure schematic diagram;
Fig. 3 is described calandria structural representation;
Fig. 4 is described calandria backsight structural representation;
Fig. 5 is described calandria side-looking structural representation;
Fig. 6 is that described calandria looks up structural representation;
Fig. 7 is described housing bottom structural representation;
Fig. 8 is described water inlet structure schematic diagram;
Fig. 9 is described venthole structural representation;
Figure 10 is described calandria sectional structure schematic diagram;
Figure 11 is the mounting structure schematic diagram of described water inlet and intake tunnel;
Figure 12 is the mounting structure schematic diagram of described venthole and housing;
Figure 13 is the sectional structure schematic diagram of described heater;
Figure 14 is described calandria first visual angle decomposition texture schematic diagram;
Figure 15 is described calandria second visual angle decomposition texture schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to description word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
As shown in figures 1-15, the invention provides a kind of steam heater of calandria water inlet modified node method, comprising: housing 1, calandria 2, water inlet 3 and venthole 4.
Housing 1, arranges the accommodating cavity of open at one end in it, described housing bottom is provided with the perforate 10 for exporting steam;
Calandria 2, it comprises pedestal 21 and the vertically extending heater body 22 from pedestal side, described pedestal 21 is covered on described housing opened portion, described heater body 22 is arranged in described accommodating cavity, heating chamber is formed between described calandria 2 and the inwall of housing 1, described heater body 22 comprises intake tunnel 5, go out vapour passage 6 and be arranged on described intake tunnel and the heating tube 8 going out vapour passage central authorities, described intake tunnel 5 is vertically opened in one end of described heater body 22 along the length direction of described heater body 22, described go out vapour passage 6 correspondence be arranged on the other end of described heater body 22, the one end open of described intake tunnel 5 flows out for steam, water inlet 3 is communicated with the other end of described intake tunnel 5.Going out on vapour passage 6 to be provided with steam access aperture 7 with described in described pedestal 21 link, the steam in described heating chamber enters out vapour passage 6 again from the open end ejection gone out vapour passage 6 from described steam access aperture 7;
Water inlet 3, as shown in Figure 8, its through described pedestal 21, described water inlet 3 one end is projecting on described pedestal 21, for being connected with water source, described water inlet 3 other end is provided with shower nozzle and extends into described intake tunnel 5 inside, sidewall evenly offers several tiny apopores 31 bottom described shower nozzle, water flows into from water inlet 3 upper end, after water enters water inflow nozzle, under pressure, extrude from the aperture water inflow nozzle sidewall, parabolically state is scattered on the inlet channel inwall of calandria, adopt the design of special nozzle structure, current can be made to disperse, water is made to spray to larger space, current can be heated more fully, the efficiency being thereupon converted to steam improves, water fully contacts with calandria inlet channel inwall, vaporization effect is obvious, take full advantage of the heat of calandria, improve the overall serviceability of calandria, and
Venthole 4, as shown in Figure 9, it is arranged on described heater body 22, and described venthole 4 one end is communicated with described open end, and described venthole 4 other end extends from described perforate 10 outside described housing 1.
Particularly, described heating tube 8 is in " U " type, the electrode 9 extending upward described pedestal is respectively provided with in two " U " type top ends of described heating tube, described electrode 9 one end is connected with the end of heating tube 8, and the other end is connected with power supply (not shown) by electric wire (not shown).Described intake tunnel 5 is arranged on the one side of described heater body 2, and described intake tunnel is positioned between the scope of a pair vertical heating tube of described " U " type heating tube 8.Described water inlet 3 is hollow tubular, be arranged at the upper end of calandria, one-body molded or be tightly connected with calandria, the shower nozzle communicated with it is set in the below of water inlet 3 simultaneously, water is flowed into by water inlet, scattered on the tube wall of intake tunnel 5 by shower nozzle, adopt the design of shower nozzle, current can be made to disperse, water sprays to larger space, the contact area of the inwall of hydrone and intake tunnel 5 is large, therefore current can be heated more fully, the efficiency being thereupon converted to steam improves, intake tunnel 5 is because design is in calandria inside simultaneously, do not take extraneous volume, therefore can be designed as larger channel volume, water sprays to larger space by shower nozzle, avoid the channel blockage problem brought because there being impurity.The upper end of described intake tunnel 5 is communicated with the water inlet 3 being arranged on calandria upper end, lower end possesses opening, flow in heating chamber for steam by intake tunnel 5, because intake tunnel 5 is set directly at calandria inside, therefore intake tunnel 5 has high temperature, when water sprays in intake tunnel 5, at high temperature, water can be converted into steam rapidly, and conversion efficiency is high, energy consumption is little, the overall performance of calandria is improved.Through the steam of conversion, flow out along intake tunnel 5 from lower ending opening, and be full of in the heating chamber formed between calandria 2 and inner walls, again heated around calandria.
Housing 1 can adopt the sealing means such as buckle, snap close to be fixed with the pedestal of calandria 2 to be connected, such as buckle is set on the pedestal of calandria 2, the interface of housing 1 arranges the draw-in groove matched with buckle, or corresponding screw hole is set on pedestal and housing, both are connected by screw.In addition sealing ring 11 is set on housing 1 with the pedestal interface of calandria 2, prevents water and steam excessive, to ensure the sealing property between housing 1 and calandria 2 further.
Described go out vapour passage 6 be arranged at the another side of the described heater body relative with described intake tunnel position, and go out vapour passage 6 and be positioned between a pair vertical heating tube of described " U " type heating tube 8.Described go out vapour passage 6 be communicated with the venthole 4 being arranged on calandria lower end, housing 1 bottom is provided with for the outwardly directed opening in shell 10 of venthole 4, the aperture of described opening in shell 10 equals the diameter of venthole 4 and this opening in shell phase cross surface, for ensureing sealing further, set out steam ports sealing ring 12 in this phase cross surface side, prevent water and steam excessive.Go out vapour passage 6 and be provided with steam access aperture 7, steam access aperture 7 is communicated with vapour passage 6 and described heating chamber, described through intake tunnel 5 change steam around heating chamber through again heating after, because the pressure gone out in vapour passage 6 is less, therefore steam enters out vapour passage 6 from steam access aperture 7, now, the inside of calandria is set directly at owing to going out vapour passage 6, therefore go out vapour passage 6 and there is high temperature, steam again by high-temperature heating, the steam after heating along going out vapour passage 6, venthole 4 flows out heater.
Water inlet 3, intake tunnel 5 with venthole 4, go out one side and another side that vapour passage 6 lays respectively at heater body, and between a pair vertical heating tube of " U " type heating tube 8 described in being just in time positioned at, as can be seen from Figure, the center of a pair vertical heating tube of heating tube is on a vertical curve, intake tunnel 5 and to go out position that vapour passage 6 arranges be float in angle between 45 ° at the center of the vertical heating tube of two couples of " U " type heating tube and horizontal line, preferably, intake tunnel 5 with go out the middle that vapour passage 6 is positioned at the vertical heating tube of two couples of " U " type heating tube.Steam heats around each position of calandria thus, can make full use of the heat of calandria, the efficiency that steam is changed is higher, steam is more dry, better quality.
Alternatively, water inlet 3, intake tunnel 5 with venthole 4, go out the coplanar that vapour passage 6 also can be positioned at heater body, and not between a pair vertical heating tube of " U " type heating tube 8, need change corresponding position of opening.
In the present invention, water inlet and venthole are directly arranged on calandria, intake tunnel with go out vapour passage and be all arranged at calandria inside, take less volume, that therefore can do is larger, water scatters in intake tunnel by shower nozzle, fully be heated into steam, in the full heating chamber formed between calandria and inner walls of vapor stream, again heat around calandria, enter out in vapour passage by steam access aperture afterwards, steam is again by high-temperature heating, and the steam after heating is along going out vapour passage, venthole outflow heater.By the heater in the present invention, the heat of calandria can be made full use of, steam conversion efficiency is higher, better quality, prevent blockage problem simultaneously, improve the performance of heater.
The aperture of described opening in shell 10 equals venthole 4 and the diameter of this opening in shell 10 phase cross surface, sets out steam ports sealing ring simultaneously, ensure the sealing property between housing 1 and venthole 4 further at this phase cross surface place.
Described perforate 10 is circumferentially provided with annular boss 101, and described venthole 4 sealing ring is fastened in the middle part of described venthole, and described boss 101 is supported bottom venthole sealing ring, thus ensures that the steam in heating chamber does not overflow outside housing from perforate 10 further.
The external diameter of described heater body 22 is less than the external diameter of described pedestal 21, thus ensures that pedestal 22 and housing 1 seal and arrange, and heater body 22 is housed in housing 1.
Described intake tunnel 5 one end contacts with described pedestal 21 madial wall, described water inlet 3 runs through described pedestal 21, and interface sealing, described injector seals is arranged on described intake tunnel 5, and the length direction of described shower nozzle is consistent with the length direction of described intake tunnel, described shower nozzle open upper end, and be communicated with described intake tunnel 5, described shower nozzle sidewall bottom circumferentially evenly offers described apopore 31, water source is communicated with described water inlet 3 by filter, water after filtration can effective filtering impurities in water, avoids blocking pipeline.
Described venthole 4 open at one end, and draw from described perforate 10, the other end sidewall of described venthole 4 offers several through holes 41, described through hole 41 with described go out vapour passage 6 be communicated with, former water enters water inlet 3 after filtering, shower nozzle is had to spray to intake tunnel tube wall, flash to steam rapidly, flow out from intake tunnel and enter heating chamber, vapour passage 6 is entered into out by steam access aperture 7 after steam heats in heating chamber, steam sprays, by equipment utilization from venthole 4 after going out in vapour passage 6 heating further.
From the above mentioned, the water inlet of existing calandria water inflow nozzle is all manhole structure, water is directly sprayed onto bottom calandria by water inlet, do not utilize the heat of the inlet channel inwall of heating kettle, so change into the weak effect of steam, cause from calandria steam moisture out higher, vaporization effect is bad, reduces calandria serviceability.
Heater of the present invention, water inflow nozzle water inlet structure is on water inflow nozzle sidewall, open several tiny inlet opening, after water enters water inflow nozzle, under pressure, extrude from the aperture water inflow nozzle sidewall, parabolically state is scattered on the inlet channel inwall of calandria, water fully contacts with calandria inlet channel inwall, vaporization effect is obvious, takes full advantage of the heat of calandria, improves the overall serviceability of calandria.Water inlet and venthole are directly arranged on calandria, and intake tunnel, going out vapour passage, to be all arranged at the heater body of calandria inner, have both improve the efficiency that water converts steam to, and have taken full advantage of again the heat energy of calandria; Water inlet, intake tunnel and venthole, go out one side and another side that vapour passage lays respectively at heater body, steam heats around each position of calandria thus, can make full use of the heat of calandria, the efficiency that steam is changed is higher, quality of steam is better; Intake tunnel, because design is in calandria inside, does not take space outerpace, therefore can be designed as larger channel volume, avoiding the channel blockage problem brought because there being impurity.
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (10)
1. a steam heater for calandria water inlet modified node method, is characterized in that, comprising:
Housing, arrange the accommodating cavity of open at one end in it, described housing bottom is provided with perforate;
Calandria, it comprises pedestal and from the vertically extending heater body in pedestal side, described base seat lid is located at described housing opened portion, described heater body is arranged in described accommodating cavity, heating chamber is formed between described calandria and the inwall of housing, described heater body comprises intake tunnel, go out vapour passage and be arranged on described intake tunnel and the heating tube going out vapour passage central authorities, described intake tunnel is vertically opened in one end of described heater body along the length direction of described heater body, described go out vapour passage correspondence be arranged on the other end of described heater body, the one end open of described intake tunnel flows out for steam, with go out on vapour passage described in described pedestal link to be provided with steam access aperture, steam in described heating chamber enters out vapour passage again from the open end ejection gone out vapour passage from described steam access aperture,
Water inlet, its through described pedestal, described water inlet one end is projecting on described pedestal, for being connected with water source, the described water inlet other end is provided with shower nozzle and extends into described intake tunnel inside, sidewall evenly offers several tiny apopores bottom described shower nozzle, water flows into from water inlet, scatters on the tube wall of intake tunnel by shower nozzle; And
Venthole, it is arranged on described heater body, and described venthole one end is communicated with described open end, and the described venthole other end extends to described hull outside from described perforate.
2. the steam heater of calandria water inlet modified node method as claimed in claim 1, it is characterized in that, described heating tube is " U " type heating tube, is respectively provided with in two " U " type top ends of described heating tube the electrode extending outward described pedestal.
3. the steam heater of calandria water inlet modified node method as claimed in claim 2, is characterized in that, described intake tunnel and go out the middle that vapour passage is positioned at a pair vertical heating tube of described heating tube.
4. the steam heater of calandria water inlet modified node method as claimed in claim 3, it is characterized in that, the pedestal of described calandria arranges buckle, and the interface of described housing is arranged the draw-in groove matched with described buckle, calandria and housing adopt buckle, the mode of draw-in groove is tightly connected.
5. the steam heater of calandria water inlet modified node method as claimed in claim 4, is characterized in that, the interface of the pedestal of described housing and calandria is arranged housing seal circle.
6. the steam heater of calandria water inlet modified node method as claimed in claim 5, is characterized in that, the aperture of described opening in shell equals venthole and the diameter of this opening in shell phase cross surface, sets out steam ports sealing ring at this phase cross surface place simultaneously.
7. the steam heater of calandria water inlet modified node method as claimed in claim 6, it is characterized in that, described perforate is circumferentially provided with annular boss, and described venthole sealing ring is fastened in the middle part of described venthole, and described boss is supported bottom venthole sealing ring.
8. the steam heater of calandria water inlet modified node method as claimed in claim 7, its spy levy in, the external diameter of described heater body is less than the external diameter of described pedestal.
9. the steam heater of calandria water inlet modified node method as claimed in claim 1, its spy levy in, described intake tunnel one end contacts with described pedestal madial wall, described water inlet runs through described pedestal, and interface sealing, described injector seals is arranged on described intake tunnel, and the length direction of described shower nozzle is consistent with the length direction of described intake tunnel, described shower nozzle open upper end, and be communicated with described intake tunnel, described shower nozzle sidewall bottom circumferentially evenly offers described apopore, and water source is communicated with described water inlet by filter.
10. the steam heater of calandria water inlet modified node method as claimed in claim 1, its spy is levying in, described venthole open at one end, and draws from described perforate, the other end sidewall of described venthole offers several through holes, described through hole and described go out vapour channel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510582155.5A CN105090920A (en) | 2015-09-14 | 2015-09-14 | Steam heating device with improved structure of water inlet of heating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510582155.5A CN105090920A (en) | 2015-09-14 | 2015-09-14 | Steam heating device with improved structure of water inlet of heating body |
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| Publication Number | Publication Date |
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| CN105090920A true CN105090920A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510582155.5A Pending CN105090920A (en) | 2015-09-14 | 2015-09-14 | Steam heating device with improved structure of water inlet of heating body |
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| CN (1) | CN105090920A (en) |
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| CN105506945A (en) * | 2016-02-03 | 2016-04-20 | 莱克电气绿能科技(苏州)有限公司 | Heating kettle for garment steamer |
| CN105716059A (en) * | 2015-12-14 | 2016-06-29 | 美的集团股份有限公司 | Steam generator system, control method and household appliance |
| CN108273794A (en) * | 2018-03-23 | 2018-07-13 | 浙江达威电子股份有限公司 | The higher steam cleaner of vaporization efficency |
| CN113405082A (en) * | 2021-07-02 | 2021-09-17 | 无锡吉冈精密科技股份有限公司 | Novel steam heater |
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| CN105716059A (en) * | 2015-12-14 | 2016-06-29 | 美的集团股份有限公司 | Steam generator system, control method and household appliance |
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| CN113405082A (en) * | 2021-07-02 | 2021-09-17 | 无锡吉冈精密科技股份有限公司 | Novel steam heater |
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Application publication date: 20151125 |
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