阅读说明：本技术 一种蒸汽拖把的蒸汽产生方法及蒸汽拖把 (steam generating method of steam mop and steam mop ) 是由 王旭宁 于 2019-09-21 设计创作，主要内容包括：本发明提供一种蒸汽拖把的蒸汽产生方法,包括以下步骤：向蒸汽发生器供电,以第一泵送速率向蒸汽发生器供水；检测蒸汽发生器的温度是否达到第一阈值,如是,则开始计时；如否,则暂停计时；判断计时时间t1是否大于第一时间阈值T1,如是,则暂停向蒸汽发生器供电并以第二泵送速率向蒸汽发生器供水,所述第二泵送速率小于第一泵送速率。能够减小蒸汽发生器过热保护对工作节奏的影响,提升用户使用体验。同时提供支持实现前述方法的蒸汽拖把。(The invention provides a steam generating method of a steam mop, which comprises the following steps: supplying power to the steam generator, supplying water to the steam generator at a first pumping rate; detecting whether the temperature of the steam generator reaches a first threshold value, and if so, starting timing; if not, pausing timing; and judging whether the timing time T1 is greater than a first time threshold T1, if so, suspending the power supply to the steam generator and supplying water to the steam generator at a second pumping rate, wherein the second pumping rate is less than the first pumping rate. The influence of the overheat protection of the steam generator on the work rhythm can be reduced, and the use experience of a user is improved. Also provided are steam mops that support the implementation of the foregoing methods.)

1. a steam generating method of a steam mop, comprising the steps of:

Supplying power to the steam generator, supplying water to the steam generator at a first pumping rate;

Detecting whether the temperature of the steam generator reaches a first threshold value, and if so, starting timing; if not, pausing timing;

And judging whether the timing time T1 is greater than a first time threshold T1, if so, suspending the power supply to the steam generator and supplying water to the steam generator at a second pumping rate, wherein the second pumping rate is less than the first pumping rate.

2. the method of generating steam in a steam mop of claim 1, further comprising preheating the steam generator by supplying power to the steam generator, the steam generator being supplied with water at the first pumping rate after the temperature of the steam generator reaches a preheating threshold.

3. The steam generating method of claim 1, wherein the first time threshold T1 is 5s to 15 s.

4. a steam generating method of a steam mop as defined in claim 1 or 3, wherein the second pumping rate is 0.5 times to 0.8 times the first pumping rate.

5. The steam generating method of claim 1, further comprising detecting whether the temperature of the steam generation is lower than a second threshold value after the power supply to the steam generator is suspended, and if so, resuming the power supply to the steam generator; the second threshold is less than the first threshold.

6. the steam generating method of claim 5, further comprising supplying water to the steam generator at the first pumping rate after the power supply to the steam generator is resumed.

7. the steam generating method of the steam mop as set forth in claim 1, further comprising stopping power supply to the steam generator according to the operation command;

Detecting whether the temperature of the steam generator reaches a third threshold value, if so, starting timing, and if not, suspending water supply to the steam generator;

after the timing is started, whether the timing time T2 is greater than a second time threshold T2 is judged, if yes, water is supplied to the steam generator at a third pumping rate, the third pumping rate is greater than the first pumping rate, whether the timing time T2 is greater than or equal to a third time threshold T3 is judged, and if yes, water supply to the steam generator is stopped.

8. The steam generating method of claim 1, further comprising stopping power supply to the steam generator according to the operation instruction;

Detecting whether the temperature of the steam generator reaches a third threshold value, if so, starting timing, and if not, stopping supplying water to the steam generator;

After the timing is started, judging whether the timing time T2 is greater than a second time threshold value T2, if so, supplying water to the steam generator at a third pumping rate, wherein the third pumping rate is greater than the first pumping rate;

Detecting whether the temperature of the steam generator is lower than a fourth threshold value, if so, stopping supplying water to the steam generator; the fourth threshold is lower than the third threshold.

9. a steam mop, comprising:

A steam generator;

a power supply to supply power to the steam generator;

a fluid pump to supply water to the steam generator at a first pumping rate in response to a first control input;

A timer;

the temperature detection device is used for detecting whether the temperature of the steam generator reaches a first threshold value or not, and if so, the timer is driven to start timing; if not, closing the timer;

The timer, the fluid pump, the temperature detection means and the power supply are arranged such that when the timed time T1 of the timer is greater than the first time threshold T1, then the power supply ceases to supply power to the steam generator and the fluid pump supplies water to the steam generator at a second pumping rate, the second pumping rate being less than the first pumping rate.

10. The steam mop of claim 9, wherein the temperature sensing device is a temperature controlled switch.

Technical Field

The invention relates to a surface cleaning appliance, in particular to a wiping head of a steam mop and the steam mop.

Background

Currently, in order to more thoroughly clean the cleaning surface, conventional cleaning methods include sweeping, vacuuming and wiping. Among them, wiping, commonly known as mopping, is the repeated rubbing of a wet or dry wipe, such as a fabric, against a surface to be cleaned to more thoroughly remove dust, adherent stains, water stains, etc. from the surface to be cleaned.

When the traditional mop is used, the wiping head needs to be washed and drained for multiple times to obtain an ideal using state, in order to simplify the floor mopping operation, the steam mop is produced by transporting steam to the wiping head, steam is continuously generated by the steam generating device, then the steam flow is conveyed to the wiping head, the steam is used for maintaining the humidity and the temperature of the wiping material on the wiping head, the ideal state of the wiping head is kept, and therefore the cleaning surface is effectively cleaned. And the purposes of disinfecting and sterilizing the cleaning surface are realized through the high temperature of the steam.

in the product development process of the steam mop conducted by the inventor, the steam mop product sold in the market is found to have the following problems: in the using process, the steam generating device is continuously heated, when the temperature rises to a certain limit, the high temperature of the steam generating device can influence the related structures at the periphery, and the conventional heat insulation structure can not effectively block the heat radiated to the periphery due to the high temperature. Therefore, the steam mop is set to stop supplying power to the steam generating device when the temperature of the steam generating device reaches a certain limit for safety, so as to prevent the steam generating device from rising continuously. Under the high-temperature environment with higher room temperature, the situation can easily occur; or after the steam mop has been operated for a long time, it is easy to do so. The mechanism can effectively ensure the safety of the internal device of the steam mop and the temperature of the steam.

However, when the steam generating device stops heating, the steam generating device needs to be started after naturally cooling to the allowable working temperature, which usually takes a long time, and the working rhythm of the normal cleaning process is disturbed, the continuous stability of steam generation is affected, and obviously the operation experience is affected very obviously. Therefore, how to maintain the normal work rhythm and reduce the influence on the operation caused by the fact that the steam generating device is triggered to stop heating due to overhigh temperature is a problem which needs to be paid attention and is urgently solved.

the above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

Disclosure of Invention

in order to solve the problem of contradiction between steam temperature control and steam continuous stability of the steam mop in the prior art, the invention provides a steam generation method, which comprises the following steps:

Supplying power to the steam generator, supplying water to the steam generator at a first pumping rate;

detecting whether the temperature of the steam generator reaches a first threshold value, and if so, starting timing; if not, pausing timing;

and judging whether the timing time T1 is greater than a first time threshold T1, if so, suspending the power supply to the steam generator and supplying water to the steam generator at a second pumping rate, wherein the second pumping rate is less than the first pumping rate.

The above steam generating method is implemented based on a commercially available steam mop, wherein during the operation of the steam generator, water in the water tank is continuously delivered into the steam generator at a first pumping rate, and a heater arranged in the steam generator is powered to heat the water, so as to generate steam for cleaning the surface. In the continuous heating process, the heat generated by the heater is generally higher than the heat required by steam generation, the temperature of the steam generator per se can be increased due to the excessive heat accumulation, at the moment, the power supply needs to be stopped to avoid the temperature accumulation from increasing, at the moment, the recognition mechanism for judging whether the heating is stopped is set to detect that the steam generator is in an overheating state and then cut off the power supply after the steam generator is kept higher than a preset temperature threshold value for a period of time, so that frequent tripping is avoided, and in the process of timing judgment of the overheating state, a part of heat is accumulated in the steam generator. Subsequent utilization of this heat by associated operations and maintenance of the rate of steam production at macroscopic level without excessive fluctuations is undesirable. Because it is inherently desirable to design a steam mop to produce steam at correspondingly different steam production rates for different cleaning modes, if such variations occur, the appearance would be that the steam production rate does not correspond to the intended cleaning mode.

the operation for realizing the purpose provided by one implementation mode of the invention is to cut off the power supply after the overheat state is maintained for a period of time, reduce the pumping rate of the water supply to the steam generator while cutting off the power supply, supply the water to the steam generator at a second pumping rate lower than the first pumping rate, ensure a certain amount of steam at the moment, ensure the continuity of the steam and avoid overlong cooling time; the temperature of the heater can be prevented from being rapidly reduced due to excessive pumped water, the heater cannot be vaporized or the steam temperature is too low, the heating time is long, and finally the steam temperature changes too much and the steam is unstable and continuous. The amount of steam generated per unit time is related to the amount of heat supplied by the steam generator and the pumping rate of the supplied water, and when the pumping rate is not changed, the increase in temperature leads to an increase in the amount of heat supplied to evaporate the water into steam, thereby increasing the amount of steam generated per unit time, and the decrease in pumping rate can adjust the upper limit of the amount of steam generated per unit time.

The above-mentioned method overcomes the inherent technical prejudice, and it is easy to think of the method that the temperature monitoring measures are arranged in the angle of protecting the steam generator and other elements, circuits and structures around the steam generator, once the steam generator is overheated, the power supply of the steam generator is cut off, and the steam generator is restarted when the temperature is recovered to the normal state. Or increasing or maintaining the pumping rate of the feed water to reduce the cooling latency of the steam generator. If the water supply is not stopped, the designer does not consider reducing the water supply amount because it is disadvantageous to the heat dissipation and cooling of the steam generator in the inherent thinking equation and increases the cooling waiting time. However, in practice, by reducing the pumping rate of the water supply, it is possible to maintain the operation state substantially equivalent to the corresponding cleaning mode even during the cooling waiting time of the steam generator, maintain a relatively stable rate range of the steam generation amount, perform the normal cleaning operation during the cooling waiting time, and thus actually "shorten" the cooling waiting time and make full use of the energy.

Also provided is a steam mop including:

A steam generator;

a power supply to supply power to the steam generator;

A fluid pump supplying water to the steam generator at a first pumping rate;

A timer;

the temperature detection device is used for detecting whether the temperature of the steam generator reaches a first threshold value or not, and if so, the timer is driven to start timing; if not, closing the timer;

the timer, the fluid pump, the temperature detection means and the power supply are arranged such that when the timed time T1 of the timer is greater than the first time threshold T1, then the power supply ceases to supply power to the steam generator and the fluid pump supplies water to the steam generator at a second pumping rate, the second pumping rate being less than the first pumping rate.

In correspondence with the various implementations disclosed above, a steam mop that supports implementation of the various steam generation methods disclosed above is also a solution provided in at least one implementation of the present invention. The action principle can be referred to the above, and is not described herein.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic logic flow diagram illustrating a steam generation method in accordance with one embodiment of the present invention.

fig. 2 is a schematic view showing a modular composition of a steam mop according to an embodiment of the present invention.

Fig. 3 is a schematic view showing an outer shape of a steam mop according to an embodiment of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

it should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

in addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

referring to fig. 1, in one implementation of the technical concept of the present invention, there is provided a steam generation method including the steps of:

Supplying power to the steam generator, supplying water to the steam generator at a first pumping rate;

Detecting whether the temperature of the steam generator reaches a first threshold value, and if so, starting timing; if not, pausing timing;

and judging whether the timing time T1 is greater than a first time threshold T1, if so, suspending the power supply to the steam generator and supplying water to the steam generator at a second pumping rate, wherein the second pumping rate is less than the first pumping rate.

Referring to fig. 2 and 3, the steam generating method is implemented on the basis of a commercially available steam mop, and the steam mop mainly includes:

a steam generator 100;

A power supply 200 for supplying power to the steam generator;

A fluid pump 400 supplying water to the steam generator 100 at a first pumping rate;

a timer 301;

A temperature detecting device 500 for detecting whether the temperature of the steam generator 100 reaches a first threshold, if so, driving the timer 301 to start timing; if not, the timer 301 is closed;

The timer 301, the fluid pump 400, the temperature detection means 500 and the power supply are arranged such that when the timed time T1 of the timer is greater than the first time threshold T1, then the power supply ceases to supply power to the steam generator and the fluid pump supplies water to the steam generator at a second pumping rate, the second pumping rate being less than the first pumping rate.

In a preferred implementation, the temperature detection means is a temperature controlled switch.

In the steam mop, it is advantageous to use the temperature controlled switch as the temperature detection device, because most of the products sold in the market at present use the temperature controlled switch as the overheat protection measure of the steam generator, and the implementation of the temperature controlled switch in the above scheme is selected, which will reduce the product improvement cost, and improve the compatibility of the scheme implementation, and it is not necessary to greatly adjust the existing products to affect other related components and circuits.

in addition, the timer 301 cooperating with the temperature controlled switch may be disposed in the driving circuit 300 for driving heating and pumping water supply, and the timer may be a digital timer or a timing relay, and the corresponding control circuit is very easy to implement on the premise of obviously understanding the technical concepts provided by the various implementation manners disclosed above. For example, the temperature control switch is electrically connected with a timing relay, the timing relay is connected with a signal generator for switching signal output, and the signal generator can send out a frequency converter for triggering frequency conversion of the fluid pump motor. For example, the temperature control switch is electrically connected with the digital timer, and then the digital timer is connected into a control assembly circuit of the steam mop and can be realized through a common control program. Of course, a reasonable choice can be made, and other elements for monitoring temperature can be adopted to realize the scheme based on the same technical concept, for example, a temperature sensor is adopted to be matched with a control circuit.

in the use process of the steam mop, the water pumped into the steam generator is continuously evaporated into steam by the continuous heating of the steam generator, and under the condition that the heat of the steam generator is determined, the steam generator is reduced to a certain temperature in unit time, so that the water with the volume V is evaporated into steam. The amount of steam generation is proportional to the initial temperature exotherm and will start to rise if the flow of water is kept constant over a period of time and then remain constant after gradually reaching a limit.

The inventor discovers that after the steam mop is interrupted in heating due to an overheat protection mechanism, a large amount of steam is still generated within a period of time, and if the whole steam mop is stopped at the moment, the steam mop can wait for a long time to cool the steam generator to reach an ideal evaporation temperature, so that the rhythm of cleaning work is easily disturbed, especially in some environments, the temperature is high, and the heat is difficult to be effectively dissipated, so that the device is dependent on the external environment.

furthermore, the inventor has found that the amount of steam generated per unit of time depends on the rate at which the steam generator exchanges heat with the water, the higher the temperature of the steam generator, the greater the amount of steam generated, and after the thermostatic switch recognizes that the temperature of the steam generator is too high and continues for a while, the heating is suspended, and then the water is heated by the heat of the steam generator, at which time the flow of water, which is reduced in flow rate, is heated at a temperature higher than the first threshold, the change in the rate of steam generation in a macroscopic period of time can be smoothed, and if the flow rate is kept constant, the amount of steam generation will inevitably increase, which is not in line with the operator's expectation of the rate of steam that the corresponding operation mode should have.

In addition, the strokes of most products for water supply pumping are not uniform, and an over-sensitive temperature control switch can cause frequent switching of the circuit, which is not beneficial to prolonging the service lives of the steam generator and the heating drive circuit. Set up the timing link, prevent the mistake and jump, and when steam generator high temperature to the outage again after lasting a period keeps the power supply, in order to save certain heat, thereby extension cleaning time avoids in case the higher condition of emergence temperature, just cuts off the power supply, just can restart work after the needs wait to cool down.

Simultaneously, the steam generator is cooled in a gentle mode, and energy can be saved. Transient overpressures are also prevented and the rate of pressure change is slowed down, affecting upstream fluid pumps and piping.

Based on the foregoing recognition, the inventors considered that the proposed solution has improved the operational experience, avoiding frequent interruptions of operation waiting for the steam generator to cool down. As mentioned above, during operation of the steam generator, water in the water tank is continuously supplied to the steam generator at a predetermined first pumping rate, and a heater provided in the steam generator is energized to heat the water, thereby generating steam for cleaning a surface to be cleaned. In the continuous heating process, the heat generated by the heater is generally higher than the heat required by steam generation, the temperature of the steam generator per se can be increased due to the excessive heat accumulation, at the moment, the power supply needs to be stopped to avoid the temperature accumulation from increasing, at the moment, the recognition mechanism for judging whether the heating is stopped is set to detect that the steam generator is in an overheating state and then cut off the power supply after the steam generator is kept higher than a preset temperature threshold value for a period of time, so that frequent tripping is avoided, and in the process of timing judgment of the overheating state, a part of heat is accumulated in the steam generator. Subsequent utilization of this heat by associated operations and maintenance of the rate of steam production at macroscopic level without excessive fluctuations is undesirable. Because it is inherently desirable to design a steam mop to produce steam at correspondingly different steam production rates for different cleaning modes, if such variations occur, the appearance would be that the steam production rate does not correspond to the intended cleaning mode.

another operation provided to achieve the above-mentioned purpose is to cut off the power supply after the superheated state is maintained for a certain period of time, cut off the power supply, reduce the pumping rate of the water supplied to the steam generator, supply the water to the steam generator at a second pumping rate lower than the first pumping rate, the amount of steam generation per unit of time is related to the amount of heat supplied from the steam generator and the pumping rate of the water supplied, when the pumping rate is not changed, the temperature is increased to increase the amount of heat supplied to evaporate the water into steam, thereby increasing the amount of steam generated per unit of time, and at this time, the upper limit of the amount of steam generation per unit of time can be adjusted by reducing the pumping rate, and even if the temperature is high, since the amount of water supplied to the steam generator is relatively low, the amount of steam generation per unit of time is limited by the amount of water supplied, and finally, macroscopically, the result is to reduce the magnitude by which the amount of steam generation, the rate of steam generation is maintained within the range required by the corresponding cleaning mode.

the above-mentioned method overcomes the inherent technical prejudice, and it is easy to think of the method that the temperature monitoring measures are arranged in the angle of protecting the steam generator and other elements, circuits and structures around the steam generator, once the steam generator is overheated, the power supply of the steam generator is cut off, at the same time, or simultaneously, the water supply is cut off, the whole steam mop is stopped, and the steam generator is allowed to start after the steam generator is recovered to the normal working state. Or increasing or maintaining the pumping rate of the feed water to reduce the cooling latency of the steam generator. If the water supply is not stopped, the designer does not consider reducing the water supply amount because it is disadvantageous to the heat dissipation and cooling of the steam generator in the inherent thinking equation and increases the cooling waiting time. However, in practice, by reducing the pumping rate of the water supply, it is possible to maintain the operation state substantially equivalent to the corresponding cleaning mode even during the cooling waiting time of the steam generator, maintain a relatively stable rate range of the steam generation amount, perform the normal cleaning operation during the cooling waiting time, and thus actually "shorten" the cooling waiting time and make full use of the energy.

In a preferred implementation, the method further comprises the step of supplying power to the steam generator for preheating, and supplying water to the steam generator at the first pumping rate after the temperature of the steam generator reaches a preheating threshold value.

Through preheating earlier, let steam generator's temperature rise, in the stage of preheating, the heat of electric heater all is used for heating the electric heater, and needn't be used for the evaporation water supply to convert into vapor simultaneously, can shorten steam generator and reach the time of ideal operating temperature, also can obtain the use experience of preferred equally. The operation process of the steam mop is smoother through the operations of starting → operation → overheating jumping-off → restarting heating.

In a preferred implementation, the first time threshold T1 takes a value of 5s to 15 s.

As a reasonable configuration, the recognition judgment time after the occurrence of the overheated state of the steam generator is set to at least 5s, which is sufficient to avoid frequent trip, and preferably not more than 15s, which is a design experience, in the case of keeping the water supply, the temperature of the steam generator is not raised to a temperature causing an adverse effect. More preferably, in a time-limited manner, the time threshold T is set at 6s to 9 s.

in a preferred implementation, the second pumping rate is 0.5 to 0.8 times the first pumping rate.

In addition, it is reasonable to adjust the pumping rate to be reduced to less than 0.8 times after the power supply to the steam generator is stopped, but at least to be kept more than half of the original pumping rate. The preferred embodiment is to adjust the ratio of the second pumping rate to the first pumping rate within this range in conjunction with the threshold values of the previously disclosed embodiments, and as a result of the implementation of the embodiments so combined, the steam generator is powered down after a macroscopic period of time following the period of time in which the steam generator is powered down, and the steam mop maintains a rate of steam generation in the operational mode that is substantially consistent with that of the steam mop prior to the previous period of time following the period of time in which the power supply is disabled.

In a preferred implementation manner, the method further comprises the steps of detecting whether the temperature of the generated steam is lower than a second threshold value after the power supply to the steam generator is suspended, and if so, resuming the power supply to the steam generator; the second threshold is lower than the first threshold.

in the process that the steam generator keeps on keeping the working mode of the steam mop by the heat accumulated in the overheat state, the temperature of the steam generator is reduced because the steam generator does not evaporate the supplied water into steam, and after the temperature is reduced to a certain range, the power supply to the steam generator can be recovered, so that the temperature of the steam generator is gradually recovered to the ideal temperature, or the balance between the power supply heating temperature and the energy consumption temperature of the evaporation can be achieved after the steam generator is operated for a period of time. The second threshold should be slightly lower than the first threshold, for example, 130 ℃ for the first threshold and 115 ℃ for the second threshold. Or the difference between the first threshold and the second threshold may be 10 ℃ to 25 ℃ again according to the suitable evaporation temperature selected by other cleaning modes.

In a preferred implementation, the method further comprises supplying water to the steam generator at the first pumping rate after power to the steam generator is restored.

as a coordinated arrangement, after power is restored to the steam generator, water supply to the steam generator at the first pumping rate is synchronously restored. To restore the steam generation mode prior to superheating. Under the ideal condition, the power supply can be switched off and suspended and recovered in a seamless mode, the stability of the cleaning mode can be kept under the condition that an operator does not perceive the power supply, and the protection of internal elements and circuit structures of the steam mop is realized.

In a preferred implementation, the method further comprises stopping power supply to the steam generator according to the operation instruction;

Detecting whether the temperature of the steam generator reaches a third threshold value, if so, starting timing, and if not, suspending water supply to the steam generator;

After the timing is started, whether the timing time T2 is greater than a second time threshold T2 is judged, if yes, water is supplied to the steam generator at a third pumping rate, the third pumping rate is greater than the first pumping rate, whether the timing time T2 is greater than or equal to a third time threshold T3 is judged, and if yes, water supply to the steam generator is suspended.

After finishing clean operation, the operator will turn off operating switch, stops supplying power to steam generator this moment, sets up this moment and judges whether steam generator is still higher at the temperature when shutting down to when unable rapid cooling down because of factors such as environment, through supplying water for a certain time to steam generator, and realize rapid cooling's purpose.

In a preferred implementation, the method further comprises stopping power supply to the steam generator according to the operation instruction;

Detecting whether the temperature of the steam generator reaches a third threshold value, if so, starting timing, and if not, stopping supplying water to the steam generator;

After the timing is started, judging whether the timing time T2 is greater than a second time threshold value T2, if so, supplying water to the steam generator at a third pumping rate, wherein the third pumping rate is greater than the first pumping rate;

detecting whether the temperature of the steam generator is lower than a fourth threshold value, if so, stopping supplying water to the steam generator; the fourth threshold is lower than the third threshold.

another way of rapidly decreasing the temperature is to detect whether the temperature of the steam generator has decreased to the target range, as a basis for stopping the water supply.

In the two implementation modes, the amount of water for cooling is small, part of the water is remained in the steam generator after entering the steam generator, part of the water is remained in the steam pipeline, and the other part of the water is used for properly soaking the wiping head of the steam mop. These residues and infiltrations do not affect the next normal use.