CN211526392U - Steam generator - Google Patents

Abstract

The utility model relates to a steam generator, it includes the bottom plate, irones the panel and generate heat the device, the bottom plate is opened there is water inlet and at least one steam transfer mouth, and the bottom plate inner chamber is first gasification chamber, and first gasification chamber is provided with steam channel, and steam channel's entry intercommunication water inlet, steam channel's export intercommunication steam transfer mouth, it has at least one steam outlet to iron the panel to open, and ironing panel sets up on the bottom plate, and ironing panel and bottom plate enclose into second gasification chamber, and the entry intercommunication steam transfer mouth in second gasification chamber, the export intercommunication steam outlet in second gasification chamber, the device that generates heat sets up in the bottom plate, and the device that generates heat provides the heat for first gasification chamber and second gasification chamber. The time for steam to pass is prolonged, the steam can fully absorb heat, water is fully vaporized, and the problem of water spraying is further solved.

Description

Steam generator

Technical Field

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

Background

The existing hand-held garment steamer has small appearance, can be used for flat ironing and hanging ironing, and has the portable selling point easy to store, so that the defect that the traditional electric iron cannot be used for hanging ironing is overcome, the defect that the traditional garment steamer is huge in size and is in trouble with places is overcome, steam is generated through a steam generator, and after high-temperature steam contacts clothes, the clothes are softened, and finally the effect of removing wrinkles is achieved.

But the hand-held type garment steamer of current all ubiquitous water spray phenomenon, steam takes hot water to spout in the play steam vent of ironing the panel together promptly, leads to spouting wet clothing, and user experience feels relatively poor.

The main reasons for the water spray are as follows: (1) because the steam channel in the machine is not reasonably designed and is short, the water cannot sufficiently absorb the heat of the soleplate, so that the water cannot be completely vaporized, steam is sprayed out together with hot water in the process of using the machine, finally clothes are wetted, and even a user is scalded by the sprayed hot water.

(2) The ironing panel of the existing hand-held garment steamer is generally made of plastic or stainless steel wrapped outside a plastic part, and the plastic part is connected with a silica gel part in the middle of a heating bottom plate to play a role in sealing. The heat transmitted from the heating bottom plate is partially blocked by the silica gel part, and then the residual heat is transmitted from the silica gel part to the plastic panel, because the heat conductivity of the plastic is poor, the heat is further reduced, so the heat finally reaching the plastic panel is little, like the plastic panel or the plastic panel, a stainless steel panel is sleeved outside the plastic panel or the plastic part, the surface temperature of the plastic panel is generally lower than 100 ℃, the ironing panel temperature is too low, the heat absorbed by clothes is less, the function of softening clothes fibers is smaller, the final result is that the wrinkle removing effect on the clothes is poor, the wrinkle removing efficiency is low, the real requirement of a user cannot be met, and when high-temperature steam passes through the ironing panel with lower temperature, the phenomenon of condensed water can occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solved common water spray problem, remove effectual steam generator of wrinkle.

The purpose of the utility model is realized like this:

a steam generator comprises a bottom plate, an ironing panel and a heating device, wherein the bottom plate is provided with a water inlet and at least one steam transit opening, an inner cavity of the bottom plate is a first vaporizing cavity, the first vaporizing cavity is provided with a steam channel, an inlet of the steam channel is communicated with the water inlet, an outlet of the steam channel is communicated with the steam transit opening, the ironing panel is provided with at least one steam outlet, the ironing panel is arranged on the bottom plate, the ironing panel and the bottom plate are enclosed into a second vaporizing cavity, an inlet of the second vaporizing cavity is communicated with the steam transit opening, an outlet of the second vaporizing cavity is communicated with the steam outlet, the heating device is arranged in the bottom plate, and the heating device provides heat for the first vaporizing cavity and the second vaporizing cavity. External water source gets into first gasification intracavity through the water inlet, the device that generates heat heats the water in the first gasification intracavity, because the water in the first gasification intracavity flows in steam channel, prolong its heat time greatly, improve the vaporization efficiency of water, thereby form more steam, steam gets into the second gasification intracavity through the steam transfer port after that, the device that generates heat heats the second gasification chamber, the time that steam passed through has been prolonged, make steam ability fully absorb the heat, make water fully vaporize, further solve the problem of water spray.

The purpose of the utility model can also adopt the following technical measures to solve:

more specifically, the steam channel is a serpentine steam channel. The water in the first vaporizing cavity flows in the spiral steam channel, the retention time of the water in the steam channel is long, the heating time is greatly prolonged, and the water is fully vaporized.

More specifically, the inner wall of the steam channel is provided with convex ribs and dentate blocking ribs at intervals. Protruding muscle and cusp fender muscle increase the flow path of steam at steam channel, moreover, steam is through the cusp fender muscle after, by bounce-back to steam channel's inner wall on, make steam directly strike the cusp fender muscle on inner wall and the inner wall, increased the area of contact of steam with the bottom plate that generates heat, further promoted the vaporization efficiency of water, make steam absorb more heats, reduce the risk of water spray.

As a more specific scheme, the heating device comprises a transverse straight line section and a vertical straight line section, the vertical straight line section is arranged at two ends of the transverse straight line section respectively, an arc transition section is arranged between the vertical straight line section and the transverse straight line section to form a U-shaped heating tube, the U-shaped heating tube is embedded into the bottom plate, and the bottom wall of the bottom plate corresponds to the U-shaped heating tube and protrudes to form a U-shaped tubular cover. Adopt U type heating tube, its heating path is great, and the time that extension steam passes through for steam has more time to absorb the heat, and U type heating tube embedding bottom plate moreover, U type heating tube and bottom plate are connected more closely, prevent that U type heating tube pine from taking off.

As a more specific scheme, baffles are arranged on the surfaces of the U-shaped tubular covers, a fifth steam channel is defined between each baffle and the inner wall of the bottom plate, a steam generation cavity is defined between each baffle and each baffle, blocking ribs are arranged in the steam generation cavity, each blocking rib divides the steam generation cavity into a first steam channel, a second steam channel, a third steam channel and a fourth steam channel, and the first steam channel, the second steam channel, the third steam channel, the fourth steam channel and the fifth steam channel are communicated. The fender muscle is separated into first steam passageway with the steam generation chamber, the second steam passageway, third steam passageway and fourth steam passageway, the in-process of water route first steam passageway, the second steam passageway, third steam passageway and fourth steam passageway, the dwell time of extension water in the steam generation chamber, thereby increase its heating time, make water fully vaporize into steam, U type tubular cover surface is provided with the baffle after that, enclose into the fifth steam passageway of U type between baffle and the bottom plate inner wall, because the speed that steam passes through can be slowed down to the U shape, the time that the extension steam passes through, make steam have more time to absorb the heat of bottom plate, make water fully vaporize into steam, improve vaporization efficiency.

More specifically, a convex rib and a toothed blocking rib are arranged in the second steam channel, and a convex rib is arranged in the fifth steam channel. Protruding muscle and cusp fender muscle increase the flow path of steam at steam channel, moreover, steam is through the cusp fender muscle after, by bounce-back to steam channel's inner wall on, make steam directly strike the cusp fender muscle on inner wall and the inner wall, increased the area of contact of steam with the bottom plate that generates heat, further promoted the vaporization efficiency of water, make steam absorb more heats, reduce the risk of water spray.

As a more specific scheme, the third steam channel is higher than the second steam channel, a first slope is arranged at the junction of the second steam channel and the third steam channel, the fourth steam channel is lower than the third steam channel, a second slope is arranged at the junction of the third steam channel and the fourth steam channel, an opening is arranged at the junction of the fourth steam channel and the fifth steam channel, and a threshold is arranged at the opening. The third steam channel is higher than the second steam channel, the first slope intercepts water which is not vaporized in the second steam channel and prevents the water from entering the third steam channel, the fourth steam channel is lower than the third steam channel, the water which is not vaporized in the third steam channel flows into the fourth steam channel along the second slope, a threshold is arranged between the fifth steam channel and the fourth channel, the water which is not vaporized in the fourth steam channel is intercepted by the threshold and is blocked by the first slope, the second slope and the threshold, the water which is not vaporized is prevented from flowing out of the steam transfer port along the fifth steam channel, and finally the steam transfer port sprays steam, so that the water spraying risk is reduced.

As a more specific scheme, an upper half cavity is arranged on the outer wall of the bottom plate corresponding to the position of the steam transfer port, an annular protruding piece is arranged on the periphery of an opening of the upper half cavity, a lower half cavity is arranged on the ironing panel, an annular clamping groove is arranged on the periphery of an opening of the lower half cavity, the annular protruding piece is inserted into and tightly clamped with the annular clamping groove, the ironing panel and the bottom plate are locked, and the upper half cavity and the lower half cavity are enclosed into the second gasification cavity.

The annular lug of panel irones, direct contact to the ring groove of bottom plate, through the tang mode cooperation, the sealed glue of tang internal filling high temperature resistance, the heat of bottom plate transmits the annular lug of panel that irones through ring groove, and then makes whole panel that irones generate heat, the area of contact of panel and bottom plate can be ironed in the increase of the cooperation mode of this kind of tang, can reduce the difference in temperature between panel and the bottom plate that irones, the heat transfer efficiency is improved, make the panel that irones heat up rapidly, and then shorten user waiting time.

Moreover, heat is transferred through direct contact's mode between ironing panel and the bottom plate, compares with current hand-held type garment steamer's indirect contact mode, and the surface temperature who irones the panel that the direct contact mode of this scheme corresponds can more increase, and it can be more outstanding to remove the wrinkle effect.

In addition, the space that irones panel and bottom plate and form is the second gasification chamber, because the temperature that irones panel and bottom plate all is very high, and steam gets into the second gasification chamber, turns round the back in the inside, fully absorbs the heat of second gasification chamber the inside, and steam obtains further intensification and refines, and the evaporation completely of surplus water obtains the dry steam of high temperature and finally discharges through steam outlet, realizes removing the wrinkle to ironing of clothing.

As a more specific scheme, the ironing panel is an aluminum ironing panel, steam guide grooves are formed in the surface of the ironing panel corresponding to the positions of steam outlets, the steam guide grooves are communicated with the steam outlets, and the ironing panel is close to the transverse straight line sections of the U-shaped heating tubes and is parallel to the transverse straight line sections of the U-shaped heating tubes. The ironing panel is made of die-cast aluminum instead of plastic, so that the heat transfer efficiency is improved, the steam guide grooves are formed in the surface of the ironing panel corresponding to the positions of steam outlets, steam is diffused to the whole ironing panel through the steam guide grooves, the contact area of the steam and clothes is increased, the ironing efficiency is improved, the ironing time is saved, better ironing experience is brought to a user, the heat is transferred to the ironing panel by the bottom plate in the process, the shape of the heating device also plays a critical role, the heating device is a U-shaped heating tube, the position, closest to the ironing panel, of the heating device is a transverse straight line segment, the transverse straight line segment is parallel to the ironing panel and is closest to the ironing panel, when the heating device heats, the heat of the heating device can be rapidly transferred to the ironing panel, so that the time delay condition that the heat of the bottom plate is transferred to the ironing, finally, the ironing panel is heated more quickly, the surface temperature is higher, and a more excellent ironing effect is obtained.

As a more specific scheme, a steam outlet cylinder is arranged at a position, corresponding to one of the steam outlets, of the lower half cavity of the ironing panel, a mounting opening is arranged at a position, close to the U-shaped tubular cover, of the upper half cavity of the bottom plate, the diameter of the mounting opening is larger than that of the steam outlet cylinder, the steam outlet cylinder is inserted into the mounting opening, an annular inlet is formed between the inner wall of the mounting opening and the outer wall of the steam outlet cylinder, an inlet of the steam outlet cylinder is communicated with the annular inlet, and an outlet of the steam outlet cylinder is communicated with the corresponding steam outlet.

The steam drum one end that irones the panel stretches into the installing port the inside of bottom plate, and the steam in second gasification chamber enters into the installing port the inside of bottom plate through annular import, then reentrant steam drum the inside, comes out from steam outlet at last, realizes removing the wrinkle to the clothing, and at this in-process, this particular construction makes partial steam realize 180 big turns, has increased steam channel, has prolonged the time that steam passes through simultaneously, makes steam ability fully absorb the heat, makes the abundant vaporization of water, further solves the problem of water spray.

The utility model has the advantages as follows:

the utility model discloses, external water source gets into first gasification intracavity through the water inlet, and the device that generates heat heats the water of first gasification intracavity, because the water of first gasification intracavity flows in steam channel, prolongs its heat time greatly, improves the vaporization efficiency of water, thereby form more steam, steam gets into the second gasification intracavity through the steam transfer mouth after that, the device that generates heat heats the second gasification chamber, the time that steam passes through has been prolonged, make steam can fully absorb the heat, make water fully vaporize, further solve the problem of water spray.

The utility model discloses, through to steam channel rational design, make up into a big main steam channel by a plurality of sub-steam channel, every sub-steam channel can both full play corresponding effect, constantly improves the vaporization effect of water, finally makes water vaporize completely, waits to the dry steam of high temperature, has solved common water spray problem to stop the clothing and spouted wet phenomenon, avoided the risk that the user was scalded by the hot water that the blowout comes.

The utility model discloses, the bottom plate gives the in-process that irones the panel to heat transfer, the shape of the device that generates heat also plays key effect, the device that generates heat is U type heating tube, the device that generates heat is horizontal straightway from ironing the nearest position of panel, this horizontal straightway is parallel with ironing the panel, and nearest from ironing the panel, when the device that generates heat heats, the heat of the device that generates heat can be rapidly toward ironing the panel direction transmission, to the heat transfer that improves the bottom plate to the time delay condition that irones the panel, finally make ironing the panel heat up faster, surface temperature is higher, obtain more remarkable ironing effect.

In addition, because of the special appearance of heating tube, combine together with the bottom plate, the direct contact's of ironing the panel cooperation mode, the panel that irones of die casting aluminium material in addition all makes the surface temperature who irones the panel more increase, and the wrinkle effect that removes is more outstanding, has solved the problem that the wrinkle effect that removes of current hand-held type garment steamer is poor, inefficiency.

Drawings

Fig. 1 is a schematic view of the steam generator of the present invention.

Fig. 2 is a top view of the steam generator of the present invention.

Fig. 3 is a sectional view a-a of fig. 2. Fig. 4 is a schematic view of the steam generator according to the present invention showing the ironing panel and the soleplate separated from each other.

Fig. 5 is a schematic view (except a cover) of the steam generator of the present invention.

Fig. 6 is a schematic view of the steam flow of the steam generator of the present invention.

Fig. 7 is an exploded view (except the cover) of the steam generator of the present invention.

Fig. 8 is a front view of the ironing panel of the steam generator of the present invention.

Fig. 9 is a sectional view B-B of fig. 8.

Fig. 10 is an enlarged view of a portion D of fig. 9.

Fig. 11 is a cross-sectional view C-C of fig. 8.

Fig. 12 is a top view of the ironing panel of the steam generator of the present invention.

Fig. 13 is a schematic view of a heat generating device of the steam generator of the present invention.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

embodiment, as shown in fig. 1 to 13, a steam generator includes a soleplate 1, an ironing panel 6, and a heat generating device, wherein a surface cover 11 is disposed at an opening of the soleplate 1, the surface cover 11 seals the opening of the soleplate 1, the surface cover 11 is an aluminum surface cover, the surface cover 11 is provided with a water inlet 2, the soleplate 1 is the aluminum soleplate 1, the soleplate 1 is provided with at least one steam transit opening 21, an inner cavity of the soleplate 1 is a first vaporizing cavity 22, the surface cover 11 and the soleplate 1 are riveted by a rivet to form the soleplate 1, and the first vaporizing cavity 22 is respectively communicated with the water inlet 2 and the steam transit opening 21.

Combine fig. 13 to show, the device that generates heat includes horizontal straightway 31 and vertical straightway 32, and vertical straightway 32 sets up respectively at horizontal straightway 31 both ends, is provided with arc changeover portion 33 between vertical straightway 32 and the horizontal straightway 31 and constitutes U type heating tube 3, and in U type heating tube 3 passed through die-casting mode embedding bottom plate 1, bottom plate 1 diapire corresponded 3 protruding formation U type tubulose covers 23 in position of U type heating tube.

The surface of the U-shaped tubular cover 23 is provided with a baffle plate 24, a fifth steam channel 45 is defined between the baffle plate 24 and the inner wall of the bottom plate 1, a steam generation cavity 4 is defined between the baffle plate 24 and the baffle plate 24, a baffle rib 25 is arranged in the steam generation cavity 4, the steam generation cavity 4 is divided into a first steam channel 41, a second steam channel 42, a third steam channel 43 and a fourth steam channel 44 by the baffle rib 25, and the first steam channel 41, the second steam channel 42, the third steam channel 43, the fourth steam channel 44 and the fifth steam channel 45 are communicated.

A convex rib 46 and a tooth-shaped blocking rib 47 are arranged in the second steam channel 42, and a convex rib 46 is arranged in the fifth steam channel 45.

The third steam channel 43 is higher than the second steam channel 42, a first slope 48 is arranged at the junction of the second steam channel 42 and the third steam channel 43, the fourth steam channel 44 is lower than the third steam channel 43, a second slope 49 is arranged at the junction of the third steam channel 43 and the fourth steam channel 44, an opening 5 is arranged at the junction of the fourth steam channel 44 and the fifth steam channel 45, and a threshold 51 is arranged at the opening 5.

An upper half cavity 26 is arranged on the outer wall of the bottom plate 1 corresponding to the position of the steam transit opening 21, an annular protruding piece 261 is arranged on the periphery of an opening of the upper half cavity 26, and a mounting opening 27 is arranged on the position, close to the U-shaped tubular cover 23, of the upper half cavity 26.

Referring to fig. 8 to 12, the ironing panel 6 is an aluminum ironing panel, the surface of the ironing panel 6 is spaced apart from each other by a steam outlet 7, the steam outlets 7 include a first steam outlet 71, a second steam outlet 72 and a third steam outlet 73, the first steam outlet 71 is located at the center of the surface of the ironing panel 6, the second steam outlets 72 are symmetrically disposed at two sides of the first steam outlet 71, the third steam outlets 73 are symmetrically disposed at two sides of the first steam outlet 71 and are located beside the second steam outlet 72 and far away from the first steam outlet 71, so that the third steam outlets 73, the second steam outlets 72 and the first steam outlets 71 are transversely arranged on the surface of the ironing panel 6, and the diameter of each of the first steam outlets 71 is larger than the diameters of the second steam outlets 72 and the third steam outlets 73.

A strip-shaped steam guide groove 61 is arranged on the surface of the ironing panel 6 corresponding to the first steam outlet 71, two ends of the strip-shaped steam guide groove 61 extend towards the longitudinal direction of the ironing panel 6, and the ends of the steam guide groove are respectively provided with a steam storage groove 8.

The surface of the ironing panel 6 is provided with a V-shaped steam guiding groove 62 corresponding to the position of the second steam outlet 72, two ends of the V-shaped steam guiding groove 62 extend towards the longitudinal direction of the ironing panel 6, and the ends of the steam guiding groove are respectively provided with a steam storage groove 8.

The surface of the ironing panel 6 is provided with a 'character' shaped steam guide groove 63 corresponding to the third steam outlet 73, two ends of the 'character' shaped steam guide groove 63 extend towards the longitudinal direction of the ironing panel 6, the other end of the 'character' shaped steam guide groove 63 extends towards the transverse direction, and the end parts of the steam guide groove are respectively provided with a steam storage groove 8.

The back of the ironing panel 6 is provided with a lower half cavity 64, an annular clamping groove 641 is arranged on the periphery of an opening of the lower half cavity 64, a steam outlet cylinder 9 is arranged at a position of the lower half cavity 64 corresponding to the first steam outlet 71, and the diameter of the steam outlet cylinder 9 is larger than that of the mounting opening 27.

The ring-shaped protruding piece 261 of the ironing panel 6 is inserted into and clamped in the ring-shaped clamping groove 641 of the soleplate 1, and the ironing panel 6 and the soleplate 1 are locked by bolts, so that the upper half cavity 26 and the lower half cavity 64 enclose the second gasification cavity 10, and the ironing panel is close to the transverse straight-line section 31 of the U-shaped heating tube 3 and is parallel to the transverse straight-line section 31 of the U-shaped heating tube 3.

The inlet of the second vaporization chamber 10 is communicated with the steam transit opening 21, the outlet of the second vaporization chamber 10 is communicated with the first steam outlet 71, the second steam outlet 72 and the third steam outlet 73, meanwhile, the steam outlet cylinder 9 is inserted into the mounting opening 27, the inner wall of the mounting opening 27 and the outer wall of the steam outlet cylinder 9 form an annular inlet 91, the inlet of the steam outlet cylinder 9 is communicated with the annular inlet 91, the outlet of the steam outlet cylinder 9 is communicated with the first steam outlet 71, and the heating device provides heat for the first vaporization chamber 22 and the second vaporization chamber 10.

The working principle is as follows:

the external water source enters the first gasification cavity 22 through the water inlet 2, and water collides with the convex rib 46 and the tooth-shaped blocking rib 47 to prolong the water flowing time when passing through the first steam channel 41, the second steam channel 42, the third steam channel 43, the fourth steam channel 44 and the fifth steam channel 45, so that the heating device can fully heat water, the vaporization efficiency of the water is improved, and more steam is formed.

In addition, the water is blocked by the first slope 48, the second slope 49 and the threshold 51 in the flowing process, so that the unvaporized water is prevented from flowing out of the steam transit opening 21 along the fifth steam channel 45, and finally the steam transit opening 21 sprays steam, and the risk of water spraying is reduced.

Furthermore, the steam enters the second gasification cavity 10 through the steam transfer port 21, after the steam is transferred inside, the heat inside the second gasification cavity 10 is fully absorbed, the steam is further heated and refined, the redundant water is completely vaporized, the obtained high-temperature dry steam is finally discharged through the steam outlet 7, and ironing and wrinkle removing of the clothes are realized.

The bottom plate gives the in-process of ironing the panel heat transfer, the shape of the device that generates heat also plays key effect, the device that generates heat is U type heating tube 3, the device that generates heat is horizontal straightway 31 from ironing the nearest position of panel, this horizontal straightway 31 is parallel with ironing the panel, moreover, it is nearest from ironing the panel, when the device that generates heat heats, the heat of the device that generates heat can be rapidly toward ironing the panel direction transmission, the delay condition to ironing the panel is reached in the heat transfer that improves the bottom plate, finally, it is faster to make ironing the panel heat up, surface temperature is higher, obtain more remarkable ironing effect.

Claims (10)

1. A steam generator, includes bottom plate, irones panel and heating device, its characterized in that: the steam ironing device comprises a bottom plate, a steam channel, a steam transfer port, a steam ironing panel, a heating device and a steam channel, wherein the bottom plate is provided with a water inlet and at least one steam transfer port, an inner cavity of the bottom plate is a first vaporizing cavity, the first vaporizing cavity is provided with the steam channel, an inlet of the steam channel is communicated with the water inlet, an outlet of the steam channel is communicated with the steam transfer port, the ironing panel is provided with at least one steam outlet, the ironing panel is arranged on the bottom plate, the ironing panel and the bottom plate are enclosed to form a second vaporizing cavity, an inlet of the second vaporizing cavity is communicated with the steam transfer port, an outlet of the second vaporizing cavity is communicated with the steam outlet.

2. The steam generator of claim 1, wherein: the steam channel is a convoluted steam channel.

3. The steam generator of claim 2, wherein: and convex ribs and dentate blocking ribs are arranged on the inner wall of the steam channel at intervals.

4. The steam generator of claim 1, wherein: the heating device comprises a transverse straight line section and a vertical straight line section, the vertical straight line section is arranged at two ends of the transverse straight line section respectively, an arc transition section is arranged between the vertical straight line section and the transverse straight line section to form a U-shaped heating tube, the U-shaped heating tube is embedded into the bottom plate, and the bottom plate bottom wall corresponds to the U-shaped heating tube and protrudes to form a U-shaped tubular cover.

5. The steam generator of claim 4, wherein: the steam generator is characterized in that a baffle is arranged on the surface of the U-shaped tubular cover, a fifth steam channel is defined between the baffle and the inner wall of the bottom plate, a steam generation cavity is defined between the baffle and the baffle, a blocking rib is arranged in the steam generation cavity, the steam generation cavity is divided into a first steam channel, a second steam channel, a third steam channel and a fourth steam channel by the blocking rib, and the first steam channel, the second steam channel, the third steam channel, the fourth steam channel and the fifth steam channel are communicated.

6. The steam generator of claim 5, wherein: and the second steam channel is internally provided with a convex rib and a toothed blocking rib, and the fifth steam channel is internally provided with a convex rib.

7. The steam generator of claim 5 or 6, wherein: the third steam channel is higher than the second steam channel, a first slope is arranged at the junction of the second steam channel and the third steam channel, the fourth steam channel is lower than the third steam channel, a second slope is arranged at the junction of the third steam channel and the fourth steam channel, an opening is formed at the junction of the fourth steam channel and the fifth steam channel, and a threshold is arranged at the opening.

8. The steam generator of claim 1, wherein: the outer wall of the bottom plate is provided with an upper half cavity, the open periphery of the upper half cavity is provided with an annular protruding piece, the ironing panel is provided with a lower half cavity, the open periphery of the lower half cavity is provided with an annular clamping groove, the annular protruding piece is inserted into and tightly clamped with the annular clamping groove, the ironing panel and the bottom plate are locked, and the upper half cavity and the lower half cavity are enclosed into the second gasification cavity.

9. The steam generator of claim 4, wherein: the ironing panel is an aluminum ironing panel, the surface of the ironing panel is provided with steam guide grooves corresponding to the positions of steam outlets, the steam guide grooves are communicated with the steam outlets, and the ironing panel is close to the transverse straight line sections of the U-shaped heating tubes and is parallel to the transverse straight line sections of the U-shaped heating tubes.

10. The steam generator of claim 9, wherein: the steam ironing device is characterized in that a steam outlet cylinder is arranged at the position, corresponding to one steam outlet, of the lower half cavity of the ironing panel, a mounting opening is arranged at the position, close to the U-shaped tubular cover, of the upper half cavity of the bottom plate, the diameter of the mounting opening is larger than that of the steam outlet cylinder, the steam outlet cylinder is inserted into the mounting opening, the inner wall of the mounting opening and the outer wall of the steam outlet cylinder form an annular inlet, the inlet of the steam outlet cylinder is communicated with the annular inlet, and the outlet of the steam outlet cylinder is communicated with the.

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