CN219021052U - Steam generator and intelligent device - Google Patents

Abstract

The present disclosure relates to a steam generator and an intelligent device, a housing of the steam generator has an inner cavity, an induction coil is energized with an alternating current, a heating body is disposed in the inner cavity of the housing, the heating body passes through the induction coil and is configured to be heated under the action of the induction coil, the heating body includes a heating zone covered by a liquid, and a high temperature zone not covered by the liquid, and the liquid located in the heating zone is configured to generate steam through heating and flow through the high temperature zone. The working principle is as follows: the induction coil is internally provided with alternating current, water is introduced into the heating body through the first water inlet, the current which changes along with time generates a changing magnetic field through the induction coil, the heating body induces eddy current in the magnetic field, and the heating body is rapidly heated by depending on the internal resistance of the heating body, so that the water in the heating body is rapidly heated and gasified, and steam is sprayed out through the first air outlet. After the steam is heated for the second time in the high temperature area, the condition that the steam is condensed into water and flows out of the pipeline when flowing in the pipeline, so that the steam loss is large can be avoided.

Description

Steam generator and intelligent device

Technical Field

The present disclosure relates to the field of steam appliances, and more specifically, to a steam generator; the disclosure also relates to an intelligent device.

Background

There are many devices on the market that require steam, such as wireless steam floor washers, wireless steam mops, wireless eye fumigators, etc. The steam generator is a small or miniature device, the basic principle is the same as that of a boiler, and the steam generator is used for heating water inside by a heating device to form steam, and the steam is transmitted by a pipeline and then discharged, so that the steam generator is used for cleaning a working surface or used for various scenes such as maintenance. However, the existing small-sized or miniature steam generator is limited by factors such as volume, power and the like, so that the exhausted steam is limited, a user cannot observe the steam with naked eyes, and misunderstanding that the exhausted steam is less or not exhausted is left for the user, so that the experience of the user is affected.

Disclosure of Invention

The present disclosure provides a steam generator and an intelligent device for solving the problems existing in the prior art.

In a first aspect, a steam generator of the present disclosure includes:

a housing having an interior cavity;

an induction coil configured to pass an alternating current;

the heating body is arranged in the inner cavity of the shell, penetrates through the induction coil and is configured to be heated under the action of the induction coil; the heating body comprises a heating area covered by liquid and a high-temperature area not covered by the liquid; the liquid in the heating zone is configured to be heated to produce steam and flow through the high temperature zone.

In one embodiment, the heating body has a hollow heating cavity, the liquid in the heating cavity being configured to generate steam upon heating; wherein, be provided with the insulating layer on the surface of heating member, induction coil is constructed to cup joint in the outside of insulating layer.

In one embodiment, the steam generator has opposite first and second ends along an axial direction of the steam generator; the induction coil is configured to extend from a position corresponding to the first end of the heating body to a position corresponding to the second end.

In one embodiment, the heating body is configured to be gradually inclined upward from the first end to the second end; the heating cavity is internally provided with a heating cavity, wherein the heating cavity is provided with a heating cavity, and the heating cavity is provided with a heating cavity; at least a scale storage cavity extending downwards is arranged at the second end of the heating body, the scale storage cavity is communicated with the heating cavity, and the bottom of the scale storage cavity is lower than the bottom of the heating cavity.

In one embodiment, the heating body is integral with the scale storage chamber.

In one embodiment, the insulating layer is a thermally insulating layer extending from at least a first end of the heating body to a second end of the heating body.

In one embodiment, the insulating layer is a ceramic sleeve, and the heating body is configured to be supported within the ceramic sleeve with a gap therebetween.

In one embodiment, a temperature sensing element is also included and is configured to be disposed in the gap at a location corresponding to the high temperature region.

In one embodiment, the interior cavity of the housing forms a heating chamber, and the liquid in the heating chamber is configured to heat through the heating body and generate steam.

In one embodiment, an insulating layer is arranged in the inner cavity of the shell, and the induction coil is arranged between the outer wall of the insulating layer and the inner wall of the shell; the heating body stretches into the space between the hollow cavities formed by the insulating layers.

In one embodiment, the induction coil is sleeved outside the housing.

In one embodiment, the steam generator has opposite first and second ends along an axial direction of the steam generator; the induction coil is configured to extend from a position corresponding to the first end of the heating body to a position corresponding to the second end.

The steam generator and the intelligent device have the beneficial effects that the steam generator comprises a shell, an induction coil and a heating body. The shell is provided with an inner cavity, the induction coil is supplied with alternating current, the heating body is arranged in the inner cavity of the shell, the heating body penetrates through the induction coil and is configured to be heated under the action of the induction coil, the heating body comprises a heating area covered by liquid and a high-temperature area uncovered by the liquid, and the liquid in the heating area is configured to generate steam through heating and flows through the high-temperature area.

The working principle of the steam generator is as follows: the induction coil is internally provided with alternating current, water is introduced into the heating body through the first water inlet, the current which changes along with time generates a changing magnetic field through the induction coil, the heating body induces eddy current in the magnetic field, and the heating body is rapidly heated by depending on the internal resistance of the heating body, so that the water in the heating body is rapidly heated and gasified, and steam is sprayed out through the first air outlet.

In addition, the water in the heating area is heated and boiled to generate steam, and the formed steam can be heated for the second time in the heating cavity by the high-temperature area to form high-temperature steam with higher temperature and then is discharged.

After the steam is heated for the second time in the high temperature area, the condition that the steam is condensed into water and flows out of the pipeline when flowing in the pipeline, so that the steam loss is large can be avoided. In addition, after the high-temperature steam is discharged from the exhaust port of the steam generator, the temperature difference between the high-temperature steam and the outside air is larger, more aerosol with better visibility can be generated, and therefore the visual effect of the sprayed steam is improved. But also the higher temperature steam gasifies the moisture in the air, thereby further forming more aerosol.

Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic view of the structure of a cleaning apparatus of the present disclosure in one embodiment;

FIG. 2 is a schematic structural view of a steam generator of the present disclosure in one embodiment;

FIG. 3 is a schematic view of a partial axial cross-sectional structure of the steam generator shown in FIG. 2;

FIG. 4 is a schematic axial cross-sectional view of a steam generator of the present disclosure with a housing removed in one embodiment;

FIG. 5 is a schematic view of the cross-sectional structure of A-A of FIG. 4;

fig. 6 is a schematic structural view of a heating body of the present disclosure in one embodiment;

fig. 7 is a schematic view of an axial sectional structure of the heating body shown in fig. 6;

FIG. 8 is a schematic view of a partial axial cross-sectional structure of a steam generator of the present disclosure in one embodiment;

fig. 9 is a schematic view of a partial axial cross-sectional structure of a steam generator of the present disclosure in one embodiment.

The one-to-one correspondence between the component names and the reference numerals in fig. 1 to 9 is as follows:

10. a body; 11. a floor brush assembly, 12, a floor brush housing; 13. a floor brush; 2. a housing; 20. an inner cavity; 21. a second water inlet; 22. a second exhaust port; 3. an induction coil; 4. a heating body; 40. a heating chamber; 41. a first water inlet; 42. a first exhaust port; 43. a heating zone; 44. a high temperature zone; 45. a scale storage cavity; 46. a screen assembly; 5. an insulating layer; 6. a temperature measuring element.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Specific embodiments of the present disclosure are described below with reference to the accompanying drawings.

In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used merely to indicate relative positional relationships between the relevant portions, and do not limit the absolute positions of the relevant portions.

Herein, "first", "second", etc. are used only for distinguishing one another, and do not denote any order or importance, but rather denote a prerequisite of presence.

Herein, "equal," "same," etc. are not strictly mathematical and/or geometric limitations, but also include deviations that may be appreciated by those skilled in the art and allowed by fabrication or use, etc.

The present disclosure provides an intelligent device that may be a wireless steam floor washer, a wireless steam mop, or a wireless eye fumigator, among others, that requires steam ejection. In addition, the present disclosure also provides a steam generator.

In one embodiment of the present disclosure, the steam generator is provided on a handheld cleaning device, such as a handheld cleaning appliance, such as a handheld cleaner, handheld vacuum cleaner, handheld floor washer, or the like, as is well known to those skilled in the art. The self-moving cleaning device can also be a sweeping robot, a mopping robot, a sweeping and mopping integrated robot and the like.

In one embodiment, referring to fig. 1, the cleaning apparatus of the present disclosure includes a main body 10, and a cleaning liquid tank, a sewage tank, a floor brush assembly 11, etc. provided on the main body 10. Wherein the floor brush assembly 11 comprises a floor brush housing 12, and a floor brush 13 connected to the floor brush housing, a steam generator is disposed in an interior cavity of the floor brush housing 12 and configured to provide steam to the work surface. Specifically, when the cleaning apparatus of the present disclosure is a floor scrubber, a user can perform a cleaning operation using the floor scrubber by pushing a hand-held portion of the floor scrubber on the floor and cleaning a work surface with the floor brush in the floor brush assembly 11. In the cleaning process, the cleaning liquid barrel on the floor scrubber can supply water to the floor brush assembly 11 so as to wet the floor brush 13, thereby achieving the cleaning effect of wet mopping the floor. At the same time, the steam generator can generate steam which can act on the working surface to deeply clean dirt on the working surface, so that the cleaning effect of the floor washing machine is improved. The wastewater tank is configured to store wastewater generated during the cleaning process.

Referring to fig. 2 and 3, in one embodiment, the steam generator of the present disclosure includes a housing 2, an induction coil 3, and a heating body 4. Wherein the housing 2 has an inner cavity 20, the induction coil 3 is supplied with an alternating current, the heating body 4 is arranged in the inner cavity 20 of the housing 2, the heating body 4 passes through the induction coil 3 and is configured to be heated by the induction coil 3, the heating body 4 comprises a heating zone 43 covered by a liquid, and a high temperature zone 44 not covered by the liquid, the liquid located in the heating zone 43 is configured to generate steam upon heating and flow through the high temperature zone 44. For a better understanding of the steam generator of the present disclosure, please refer to fig. 4 to 7 together, wherein fig. 4 is a schematic axial sectional structure of the steam generator of the present disclosure with a housing removed, fig. 5 is a schematic A-A sectional structure of fig. 4, fig. 6 is a schematic structural diagram of the heating body of the present disclosure, and fig. 7 is a schematic axial sectional structure of the heating body of fig. 6.

The working principle of the steam generator is as follows: an alternating current is introduced into the induction coil 3, water is introduced into the heating body 4 through the first water inlet 41, a changing magnetic field is generated by the current changing along with time through the induction coil 3, the heating body 4 induces eddy current in the magnetic field, and the heating body 4 is rapidly heated by virtue of the internal resistance of the heating body 4, so that the water in the heating body 4 is rapidly heated and gasified, and steam is sprayed out through the first air outlet 42.

In addition, the water in the heating zone 43 is heated and boiled to generate steam, and the formed steam can be heated again in the heating cavity by the high temperature zone 44 to form high temperature steam with higher temperature and then discharged.

After the steam is heated in the high temperature region 44, the steam can be prevented from condensing into water and flowing out of the pipeline when flowing in the pipeline, so that the situation of high steam loss can be avoided. In addition, after the high-temperature steam is discharged from the exhaust port of the steam generator, the temperature difference between the high-temperature steam and the outside air is larger, more aerosol with better visibility can be generated, and therefore the visual effect of the sprayed steam is improved. But also the higher temperature steam gasifies the moisture in the air, thereby further forming more aerosol.

The high temperature zone 44 in the present disclosure is with respect to the heating zone 43, and the highest temperature of the heating zone 43 does not exceed 100 ℃ because the heating zone 43 is covered with water, whereas the high temperature zone 44 may exceed 100 ℃ with respect to the heating zone because it is not covered with water. In one embodiment of the present disclosure, the temperature of the high temperature zone 44 is configured to be maintained between 280 ℃ and 580 ℃, such that when the steam formed in the heating zone 43 flows to the high temperature zone 44 in the heating chamber, it is secondarily heated by the high temperature zone 44, forming high temperature steam with a higher temperature, and the temperature of the steam in the heating chamber 200 may reach 170 ℃ or higher.

With continued reference to fig. 3, the heating body 4 has a hollow heating chamber 40, and the liquid in the heating chamber 40 is configured to generate steam upon heating. Wherein an insulating layer 5 is provided on the surface of the heating body 4, and the induction coil 3 is configured to be sleeved outside the insulating layer 5.

That is, the heating body 4 is specifically a hollow copper tube in this embodiment, the heating body 4 has a heating cavity 40, and a first water inlet 41 and a first air outlet 42 which are communicated with the heating cavity 40, the heating cavity 40 is divided into a heating area 43 and a high temperature area 44, the first water inlet 41 is communicated with the heating area 43, and the first air outlet 42 is communicated with the high temperature area 44.

The insulating layer 5 is arranged between the heating body 4 and the induction coil 3 of the steam generator, so that safety accidents such as electric shock and the like caused by the fact that water is introduced into the heating body 4 due to the fact that the induction coil 3 and the heating body 4 are electrified can be avoided.

With reference to fig. 2 and 3, the steam generator has a first end and a second end in an axial direction of the steam generator, and the induction coil 3 is configured such that a position corresponding to the first end of the heating body 4 extends to a position corresponding to the second section.

So set up, the induction coil 3 of this disclosure extends to the second end along the axial of heating member 4 from its first end, can produce comparatively even magnetic field in whole heating member 4, and the heat that heating member 4 wholly produced is comparatively even.

With continued reference to fig. 3, the heating body 4 is configured to be gradually inclined upward from the first end to the second end, and the heating chamber 40 is provided with a heating zone 43 adjacent to the first end of the heating body 4 and a high temperature zone 44 adjacent to the second end of the heating body 4.

Since the heating body 4 is gradually inclined upward from the first end to the second end, the position adjacent to the first end of the heating body 4 can be covered with water to form the heating zone 43, while the position adjacent to the second end of the heating body 4 is not easily covered with water to form the high temperature zone 44.

In the use process of the steam generator of the present disclosure, water enters the heating cavity 40 from the first water inlet 41 at the first end of the steam generator, the water entering from the first water inlet 41 is firstly contacted with the heating zone 43 of the heating body 4 and then heated into steam by the heating zone 43, and the formed steam continuously moves obliquely upwards along the axial extension direction of the heating body 4, passes through the high temperature zone 44 and is secondarily heated into high temperature steam by the high temperature zone 44, and finally is discharged from the first air outlet 42 at the second end of the steam generator after passing through the high temperature zone 44. After the steam is heated in the high temperature region 44, the steam can be prevented from condensing into water and flowing out of the pipeline when flowing in the pipeline, so that the situation of high steam loss can be avoided. In addition, after the high-temperature steam is discharged from the first exhaust port 42 of the steam generator, the temperature difference between the high-temperature steam and the outside air is larger, more aerosol with better visibility can be generated, and therefore the visual effect of the sprayed steam is improved. But also the higher temperature steam gasifies the moisture in the air, thereby further forming more aerosol.

With continued reference to fig. 3, in one embodiment of the present disclosure, the inclination angle R of the heating body 4 with respect to the horizontal plane in the direction from the first end to the second end corresponds to the following relationship: r is more than or equal to 5 degrees and less than or equal to 60 degrees. When the inclination angle R is less than 5 °, the area covered with water on the surface of the heating body 4 is too large, the area of the high temperature region 44 is small, it is difficult to heat the steam into high temperature steam, and when the inclination angle R is more than 60 °, it is difficult to carry out scale, causing scale to abut on the heating region 43. In addition, water gathers at the heating zone 43, which reduces the contact area between the water and the heating zone 43, resulting in a decrease in heating efficiency. By controlling the inclination angle of the heating body 2 with respect to the horizontal plane to be between 5 ° and 60 °, it is possible to form the heating zone 43 covered with water and the high temperature zone 44 not covered with water in the heating chamber 11 by controlling the amount of water.

With continued reference to fig. 3 and 7, at least a scale storage chamber 45 extending downward is provided at the second end of the heating body 4, the scale storage chamber 45 communicates with the heating chamber 40, and the bottom of the scale storage chamber 45 is configured to be lower than the bottom of the heating chamber 40.

Since the heating body 4 continuously heats the water in the heating chamber 40 during the use of the steam generator, the water containing the soluble calcium and magnesium compound has insoluble calcium salt or magnesium salt separated out after boiling, namely scale particles; and scale particles in the steam may adhere to the wall of the heating chamber 40 after contacting the wall of the heating chamber 40. Thus, as the steam generator is used, scale on the walls of the heating chamber 40 builds up more and more.

After the scale storage cavity 45 is arranged, the high-temperature steam has certain power in the flowing process to the first exhaust port 42, so that the high-temperature steam mixed with the scale particles flows to the first exhaust port 42, and the scale particles can be settled in the scale storage cavity 45 under the action of gravity because the bottom of the scale storage cavity 45 is lower than the bottom of the heating cavity 40, thereby slowing down the deposition speed of the scale and prolonging the service life of the steam generator.

In detail, the heating body 4 of the present disclosure includes a first cylindrical tube extending from a first end to a second end in an axial direction, a heating cavity 40 is formed in the first cylindrical tube, the heating body 4 further includes a second cylindrical tube extending from the second end to the axial direction, a scale storage cavity 45 is formed in the second cylindrical tube, an outer diameter of the first cylindrical tube is smaller than an outer diameter of the second cylindrical tube, an inner diameter of the first cylindrical tube is smaller than an inner diameter of the second cylindrical tube, and the first cylindrical tube and the second cylindrical tube are coaxially disposed.

The first cylindrical tube and the second cylindrical tube of the heating body 4 are welded and connected to form a whole machine of the heating body 4, and the welded and connected heat-insulating property of the whole machine of the heating body 4 can be ensured. That is, the heating body 4 of the present disclosure is integrated with the scale storage chamber 45, i.e., the scale filtering box and the steam generator are integrated in the present disclosure, reducing the volume of the heating body 4.

In addition, the heating chamber 40 of the heating body 4 is enlarged on the right side of the high temperature region 44, if the heating chamber is enlarged on the left side of the high temperature region 44, the gaseous water and the high temperature liquid water are insufficiently heated, high temperature steam with good visualization cannot be generated, and the heating chamber 40 is enlarged on the right side of the high temperature region 44, so that the gaseous water and the high temperature liquid water can be sufficiently heated, high temperature steam with good visualization can be generated, and scale generated in the high temperature region 44 can be flushed into the scale storage chamber 45, thereby prolonging the service time of the steam generator.

As shown in fig. 3, in one embodiment of the present disclosure, a screen assembly 46 is disposed in the scale storage chamber 45, the screen assembly 46 overlying the first exhaust port 42, and the high temperature steam is configured to be exhausted from the first exhaust port 42 after passing through the screen assembly 46. Because the filter screen assembly 46 is arranged in the scale storage cavity 45, when steam passes through the filter screen assembly 46, the scale particles which cannot be settled and have the particle size larger than the aperture of the filter screen are trapped by the filter screen assembly 46, so that the blockage of subsequent air injection holes caused by the large-particle scale particles in the scale discharged from the first air exhaust port 42 is avoided.

As shown in fig. 3, in one embodiment of the present disclosure, first vent 42 protrudes outwardly, and a vent cavity 43 is defined between a sidewall of first vent 42 and screen assembly 46. The steam generator of the present disclosure can increase the tendency of high temperature steam to flow to the first exhaust port 42 by providing the air outlet chamber, thereby increasing the steam flow rate at the first exhaust port 42.

With continued reference to fig. 3, the insulating layer 5 of the present disclosure is a thermally insulating layer that extends from at least a first end of the heating body 4 to a second end of the heating body 4.

The insulating layer 5 of the steam generator has a heat insulation function, and can better seal heat generated by the heating body 4 in the insulating layer 5, so that heat loss is avoided, and the working efficiency of the steam generator can be improved.

And, the heat insulating layer extends from the first end to the second end of the heating body 4, so that the heat generated by the heating body 4 can be completely stored in the insulating layer 5.

Further, the insulating layer of the present disclosure is a ceramic sleeve, and the heating body 4 is configured to be supported inside the ceramic sleeve with a gap therebetween.

In detail, the two ends of the ceramic sleeve of the present disclosure are provided with supporting pieces or flanges for supporting, and may also be supported in the housing 2, so that a gap is provided between the ceramic sleeve and the housing 2.

The gap between the heating body 4 and the ceramic sleeve is matched with the thickness of the ceramic sleeve, so that a proper distance is ensured between the heating body 4 and the induction coil 3, and the induction heating efficiency of the heating body 4 is improved.

As shown in fig. 3, in one embodiment, the steam generator of the present disclosure is provided with a temperature measuring element 6, the temperature measuring element 6 being configured to be disposed in the gap at a position corresponding to the high temperature region 44.

The detection point of the temperature measuring element 6 is disposed at a position corresponding to the high temperature region 44 inside the heating body 4, and is used for measuring the temperature of the high temperature region 44. Specifically, the temperature measuring element 6 may be a thermocouple detecting element or a thermistor detecting element, or the like. When the temperature measuring element 6 is a thermocouple detecting element, the connection point of the two hot electrodes is the detection point of the thermocouple detecting element; when the temperature measuring element 6 is a thermistor detecting element, the position of the thermistor is the detecting point of the thermistor detecting element. After the temperature of the high temperature region 44 is obtained, the steam generator of the present disclosure may adjust the heating power of the heating part 4, thereby ensuring that the heating body can normally heat water into high temperature steam.

The temperature measuring element 6 is arranged in the gap between the ceramic sleeve and the heating body 4, so that the internal space of the steam generator can be reasonably utilized, and the whole structure of the steam generator can be compact.

Referring to fig. 8, in one embodiment, the steam generator of the present disclosure includes a housing 2, an induction coil 3, and a heating body 4. Wherein the housing 2 has an inner cavity 20, the induction coil 3 is supplied with an alternating current, the heating body 4 is arranged in the inner cavity 20 of the housing 2, the heating body 4 passes through the induction coil 3 and is configured to be heated by the induction coil 3, the heating body 4 comprises a heating zone 43 covered by a liquid, and a high temperature zone 44 not covered by the liquid, the liquid located in the heating zone 43 is configured to generate steam upon heating and flow through the high temperature zone 44. The inner cavity 20 of the housing 2 forms a heating chamber in which a liquid is arranged to be heated by the heating body 4 and to generate steam.

The shell 2 is provided with a second water inlet 21 and a second air outlet 22 which are communicated with the inner cavity 20, water of an external water source flows into the inner cavity 20 through the second air inlet 21, alternating current is introduced into the induction coil 3, the current which changes along with time generates a changing magnetic field through the induction coil 3, the heating body 4 induces eddy current in the magnetic field, and the heating body 4 rapidly heats by virtue of the internal resistance of the heating body 4, so that the water in the inner cavity 20 is rapidly heated and gasified, and steam is sprayed out through the second air outlet 22.

In addition, the water in the heating zone 43 is heated and boiled to generate steam, and the formed steam can be heated again in the heating cavity by the high temperature zone 44 to form high temperature steam with higher temperature and then discharged.

After the steam is heated in the high temperature region 44, the steam can be prevented from condensing into water and flowing out of the pipeline when flowing in the pipeline, so that the situation of high steam loss can be avoided. In addition, after the high-temperature steam is discharged from the exhaust port of the steam generator, the temperature difference between the high-temperature steam and the outside air is larger, more aerosol with better visibility can be generated, and therefore the visual effect of the sprayed steam is improved. But also the higher temperature steam gasifies the moisture in the air, thereby further forming more aerosol.

The high temperature zone 44 in the present disclosure is with respect to the heating zone 43, and the highest temperature of the heating zone 43 does not exceed 100 ℃ because the heating zone 43 is covered with water, whereas the high temperature zone 44 may exceed 100 ℃ with respect to the heating zone because it is not covered with water. In one embodiment of the present disclosure, the temperature of the high temperature zone 44 is configured to be maintained between 280 ℃ and 580 ℃, such that when the steam formed in the heating zone 43 flows to the high temperature zone 44 in the heating chamber, it is secondarily heated by the high temperature zone 44, forming high temperature steam with a higher temperature, and the temperature of the steam in the heating chamber 200 may reach 170 ℃ or higher.

With continued reference to fig. 8, in this embodiment, the induction coil 3 is sleeved outside the housing 2. That is, an alternating current is supplied to the induction coil 3, a time-varying current generates a varying magnetic field through the induction coil 3, the heating body 4 induces eddy currents in the magnetic field, and the heating body 4 rapidly heats up by virtue of the internal resistance of the heating body 4, so that water in the inner cavity 20 is rapidly heated and gasified, and steam is ejected from the second air outlet 22.

With continued reference to fig. 8, in the present embodiment, the steam generator has a first end and a second end in the axial direction of the steam generator, and the induction coil 3 is configured such that the position corresponding to the first end of the heating body 4 extends to the position corresponding to the second section.

So set up, the induction coil 3 of this disclosure extends to the second end along the axial of heating member 4 from its first end, can produce comparatively even magnetic field in whole heating member 4, and the heat that heating member 4 wholly produced is comparatively even.

Referring to fig. 9, in one embodiment, the steam generator of the present disclosure includes a housing 2, an induction coil 3, and a heating body 4. Wherein the housing 2 has an inner cavity 20, the induction coil 3 is supplied with an alternating current, the heating body 4 is arranged in the inner cavity 20 of the housing 2, the heating body 4 passes through the induction coil 3 and is configured to be heated by the induction coil 3, the heating body 4 comprises a heating zone 43 covered by a liquid, and a high temperature zone 44 not covered by the liquid, the liquid located in the heating zone 43 is configured to generate steam upon heating and flow through the high temperature zone 44. The inner cavity 20 of the housing 2 forms a heating chamber in which a liquid is arranged to be heated by the heating body 4 and to generate steam.

The shell 2 is provided with a second water inlet 21 and a second air outlet 22 which are communicated with the inner cavity 20, water of an external water source flows into the inner cavity 20 through the second air inlet 21, alternating current is introduced into the induction coil 3, the current which changes along with time generates a changing magnetic field through the induction coil 3, the heating body 4 induces eddy current in the magnetic field, and the heating body 4 rapidly heats by virtue of the internal resistance of the heating body 4, so that the water in the inner cavity 20 is rapidly heated and gasified, and steam is sprayed out through the second air outlet 22.

In addition, the water in the heating zone 43 is heated and boiled to generate steam, and the formed steam can be heated again in the heating cavity by the high temperature zone 44 to form high temperature steam with higher temperature and then discharged.

After the steam is heated in the high temperature region 44, the steam can be prevented from condensing into water and flowing out of the pipeline when flowing in the pipeline, so that the situation of high steam loss can be avoided. In addition, after the high-temperature steam is discharged from the exhaust port of the steam generator, the temperature difference between the high-temperature steam and the outside air is larger, more aerosol with better visibility can be generated, and therefore the visual effect of the sprayed steam is improved. But also the higher temperature steam gasifies the moisture in the air, thereby further forming more aerosol.

The high temperature zone 44 in the present disclosure is with respect to the heating zone 43, and the highest temperature of the heating zone 43 does not exceed 100 ℃ because the heating zone 43 is covered with water, whereas the high temperature zone 44 may exceed 100 ℃ with respect to the heating zone because it is not covered with water. In one embodiment of the present disclosure, the temperature of the high temperature zone 44 is configured to be maintained between 280 ℃ and 580 ℃, such that when the steam formed in the heating zone 43 flows to the high temperature zone 44 in the heating chamber, it is secondarily heated by the high temperature zone 44, forming high temperature steam with a higher temperature, and the temperature of the steam in the heating chamber 200 may reach 170 ℃ or higher.

With continued reference to fig. 9, in this embodiment, further, an insulating layer 5 is disposed in the inner cavity 20 of the housing 2, and the induction coil 3 is disposed between the outer wall of the insulating layer 5 and the inner wall of the housing 2; the heating body 4 extends between the hollow cavities formed by the insulating layer 5.

With continued reference to fig. 9, in the present embodiment, the steam generator has a first end and a second end in the axial direction of the steam generator, and the induction coil 3 is configured such that the position corresponding to the first end of the heating body 4 extends to the position corresponding to the second section.

So set up, the induction coil 3 of this disclosure extends to the second end along the axial of heating member 4 from its first end, can produce comparatively even magnetic field in whole heating member 4, and the heat that heating member 4 wholly produced is comparatively even.

Application scenario one

The user opens the switch of the intelligent equipment that this disclosure provided, and after the intelligent equipment was opened, control steam generator and water pump start.

The water in the liquid storage tank is continuously pumped into the first water inlet 41 of the heating body 4 by the water pump, and then enters the heating cavity 40 of the heating body 4 from the first water inlet 41. Meanwhile, alternating current is introduced into the induction coil 3, water is introduced into the heating body 4 through the first water inlet 41, a changing magnetic field is generated by the current changing along with time through the induction coil 3, vortex is induced in the magnetic field by the heating body 4, the heating body 4 is rapidly heated by virtue of the internal resistance of the heating body 4, the water entering from the first water inlet 41 is firstly contacted with the heating zone 43 of the heating body 4 and then heated into steam by the heating zone 43, and the formed steam continuously moves upwards along the extending direction of the heating body 4 in an inclined manner, passes through the high-temperature zone 44 and is secondarily heated into high-temperature steam by the high-temperature zone 44. After passing through the high temperature zone 44, the high temperature steam is finally discharged from the first air outlet 42 at the second end of the steam generator. After the steam is heated in the high temperature region 44, the steam can be prevented from condensing into water and flowing out of the pipeline when flowing in the pipeline, so that the situation of high steam loss can be avoided. In addition, after the high-temperature steam is discharged from the first air outlet 42 of the steam generator, the temperature difference between the high-temperature steam and the outside air is larger, more aerosol with better visibility can be generated, and therefore the visual effect of the sprayed steam is improved. But also the higher temperature steam gasifies the moisture in the air, thereby further forming more aerosol.

Application scene two

The user opens the switch of the intelligent equipment that this disclosure provided, and after the intelligent equipment was opened, control steam generator and water pump start.

The water in the liquid storage tank is continuously pumped into the second water inlet 21 of the shell 2 by the water pump, and then enters the inner cavity 20 of the shell 2 from the second water inlet 21. Meanwhile, alternating current is introduced into the induction coil 3, water is introduced into the heating body 4 through the second water inlet 21, a changing magnetic field is generated through the induction coil 3 by the current changing along with time, the heating body 4 induces eddy current in the magnetic field, the heating body 4 is rapidly heated by virtue of the internal resistance of the heating body 4, the water entering from the second water inlet 21 is firstly contacted with the heating zone 43 of the heating body 4 and then heated into steam by the heating zone 43, and the formed steam continuously moves upwards in an inclined manner along the extending direction of the heating body 4, passes through the high-temperature zone 44 and is secondarily heated into high-temperature steam by the high-temperature zone 44. After passing through the high temperature zone 44, the high temperature steam is finally discharged from the second air outlet 22 at the second end of the steam generator. After the steam is heated in the high temperature region 44, the steam can be prevented from condensing into water and flowing out of the pipeline when flowing in the pipeline, so that the situation of high steam loss can be avoided. In addition, after the high-temperature steam is discharged from the second air outlet 22 of the steam generator, the temperature difference between the high-temperature steam and the outside air is larger, more aerosol with better visibility can be generated, and therefore the visual effect of the sprayed steam is improved. But also the higher temperature steam gasifies the moisture in the air, thereby further forming more aerosol.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvements in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims (13)

1. A steam generator, comprising:

a housing (2), the housing (2) having an interior cavity (20);

-an induction coil (3), the induction coil (3) being configured to be energized with an alternating current;

a heating body (4), the heating body (4) being arranged in an inner cavity (20) of the housing (2), the heating body (4) passing through the induction coil (3) and being configured to heat under the influence of the induction coil (3); the heating body (4) comprises a heating zone (43) covered by a liquid, and a high temperature zone (44) not covered by a liquid; the liquid in the heating zone (43) is configured to generate steam upon heating and flow through the high temperature zone (44).

2. The steam generator according to claim 1, characterized in that the heating body (4) has a hollow heating chamber (40), the liquid located in the heating chamber (40) being configured to generate steam upon heating; wherein an insulating layer (5) is arranged on the surface of the heating body (4), and the induction coil (3) is configured to be sleeved outside the insulating layer (5).

3. The steam generator of claim 2, wherein the steam generator has opposite first and second ends along an axial direction of the steam generator; the induction coil (3) is configured to extend from a position corresponding to a first end of the heating body (4) to a position corresponding to a second end.

4. A steam generator according to claim 3, characterized in that the heating body (4) is configured to be gradually inclined upwards from the first end to the second end; the heating area (43) is arranged in the heating cavity (40) and is adjacent to the first end of the heating body (4), and the high-temperature area (44) is arranged in the heating cavity and is adjacent to the second end of the heating body (4); at least a scale storage cavity (45) extending downwards is arranged at the second end of the heating body (4), the scale storage cavity (45) is communicated with the heating cavity (40), and the bottom of the scale storage cavity (45) is configured to be lower than the bottom of the heating cavity (40).

5. A steam generator according to claim 4, characterized in that the heating body (4) is integral with the scale storage chamber (45).

6. A steam generator according to claim 4, characterized in that the insulating layer (5) is a heat-insulating layer extending at least from a first end of the heating body (4) to a second end of the heating body (4).

7. A steam generator according to claim 6, characterized in that the insulating layer is a ceramic sleeve, the heating body (4) being configured to be supported within the ceramic sleeve with a gap between it and the ceramic sleeve.

8. The steam generator according to claim 7, further comprising a temperature measuring element (6), the temperature measuring element (6) being configured to be arranged in the gap at a position corresponding to the high temperature zone (44).

9. A steam generator according to claim 1, characterized in that the inner cavity (20) of the housing (2) forms a heating chamber, the liquid in the heating chamber being configured to heat up via the heating body (4) and to generate steam.

10. A steam generator according to claim 9, characterized in that an insulating layer (5) is provided in the inner cavity (20) of the housing (2), the induction coil (3) being arranged between the outer wall of the insulating layer (5) and the inner wall of the housing (2); the heating body (4) stretches into the space between the hollow cavities formed by the insulating layers (5).

11. A steam generator according to claim 9, characterized in that the induction coil (3) is sleeved outside the housing (2).

12. The steam generator of claim 9, wherein the steam generator has opposite first and second ends along an axial direction of the steam generator; the induction coil (3) is configured to extend from a position corresponding to a first end of the heating body (4) to a position corresponding to a second end.

13. A smart device, characterized by comprising a steam generator according to any one of claims 1 to 12.

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