CN218186681U

CN218186681U - Surface cleaning system

Info

Publication number: CN218186681U
Application number: CN202222484644.5U
Authority: CN
Inventors: 谢明健; 唐成; 段飞; 罗吉成
Original assignee: Beijing Shunzao Technology Co Ltd
Current assignee: Beijing Shunzao Technology Co Ltd
Priority date: 2022-09-20
Filing date: 2022-09-20
Publication date: 2023-01-03
Anticipated expiration: 2032-09-20

Abstract

The present disclosure provides a surface cleaning system, comprising: a fluid dispensing system; a fluid recovery system; a heating system; a stirrer; a first airflow accelerator; a second airflow accelerator; a controller; and a rechargeable battery; wherein the controller is configured to perform a thermal drying cycle after performing at least one self-cleaning cycle in which the cleaning liquid stored in the supply tank is supplied to the agitator through the nozzle, the agitator rotates about the rotation shaft in a first direction, and after the self-cleaning cycle is completed, the cleaning liquid near the agitator is recovered to the recovery tank through the suction nozzle, and in which the agitator rotates about the rotation shaft in at least a second direction, the first direction being opposite to the second direction; during the self-cleaning cycle and/or the thermal drying cycle, the charging circuit of the rechargeable battery remains at least activated.

Description

Surface cleaning system

Technical Field

The present disclosure relates to a surface cleaning system.

Background

The floor washing machine in the prior art can clean the surface to be cleaned by washing the ground with hot water, and has excellent cleaning effect.

After the floor cleaning machine cleans the surface to be cleaned, dirt exists on the rolling brush of the floor cleaning machine, so that the rolling brush needs to be automatically cleaned in time to prevent the rolling brush from generating odor and influencing the use experience of a user.

Furthermore, a floor washing machine in the prior art, for example, chinese patent publication No. CN114376484A, discloses a method, an apparatus and a cleaning device for drying a rolling brush after the rolling brush is self-cleaned.

However, when the floor washing machine in the prior art is used for self-cleaning and drying, energy of a battery of the cleaning equipment needs to be used, which causes battery loss on one hand, and on the other hand, prolongs charging time of the floor washing machine, or affects endurance time of the floor washing machine if the charging is not carried out in time after the self-cleaning and drying are finished.

SUMMERY OF THE UTILITY MODEL

To solve one of the above technical problems, the present disclosure provides a surface cleaning system.

According to one aspect of the present disclosure, there is provided a surface cleaning system comprising:

a cleaning portion including a removable cover body formed with a receiving cavity, an inner surface of the cover body being formed as a substantially smooth surface, and an inner surface of the cover body being formed as at least a partial side wall of the receiving cavity;

a fluid dispensing system comprising a dispensing passage, a nozzle, and a supply tank, the supply tank and the nozzle at least partially defining the dispensing passage;

a fluid recovery system comprising a recovery channel, a suction nozzle, and a recovery tank, the recovery tank and the suction nozzle at least partially defining the recovery channel;

a heating system comprising a heating channel, a channel inlet, a channel outlet, and a heater, the channel inlet and channel outlet at least partially defining the heating channel, the heater being provided in the heating channel;

an agitator disposed in the receiving cavity of the cleaning portion and located in the fluid distribution system, the fluid recovery system, and the heating system, with an axis of rotation of the agitator disposed laterally adjacent to the suction nozzle;

a first air flow accelerator in fluid communication with the fluid recovery system;

a second airflow accelerator in fluid communication with the heating system;

a controller for controlling the operation of the first airflow accelerator, the second airflow accelerator and the agitator;

a rechargeable battery for selectively powering a surface cleaning system;

wherein the controller is configured to perform a thermal drying cycle after performing at least one self-cleaning cycle in which the cleaning liquid stored in the supply tank is supplied to the agitator through the nozzle, the agitator rotating in a first direction around the rotation axis, and after the self-cleaning cycle is completed, the cleaning liquid near the agitator is recovered to the recovery tank through the suction nozzle, and in which the agitator rotates in at least a second direction around the rotation axis, the first direction being opposite to the second direction; when the stirrer rotates in the second direction, the stirrer keeps interference with the basically smooth inner surface of the cover body, so that the inner surface of the cover body forms reverse interference to the fluff on the peripheral surface of the stirrer, and the reverse direction of the fluff on the peripheral surface of the stirrer is changed; the charging circuit of the rechargeable battery remains at least activated during a self-cleaning cycle and/or a thermal drying cycle.

According to at least one embodiment of the present disclosure, the charging circuit of the rechargeable battery is activated when the self-cleaning cycle is switched to the thermal drying cycle.

According to at least one embodiment of the present disclosure, the controller is configured to: and starting the stirrer to rotate around the rotation shaft in the second direction all the time when the thermal drying cycle is started.

According to at least one embodiment of the present disclosure, the controller is configured to: and before the thermal drying cycle is finished, starting the stirrer to rotate around the rotation shaft in a second direction.

According to at least one embodiment of the present disclosure, the controller is configured to: during the execution of the thermal drying cycle, the agitator is activated to rotate in a first direction and a second direction, respectively.

According to the surface cleaning system of at least one embodiment of the present disclosure, during the execution of the thermal drying cycle, the agitator rotates in the second direction for a longer time than in the first direction.

According to the surface cleaning system of at least one embodiment of the present disclosure, in the thermal drying cycle, the power of the first airflow accelerator is reduced to 0.

According to at least one embodiment of the present disclosure, the surface cleaning system further includes a heat recovery tank connected to the heat recovery tank.

In accordance with at least one embodiment of the present disclosure, the first air flow accelerator is in fluid communication with the suction nozzle for generating a working gas flowing through a recovery path during the self-cleaning cycle.

According to at least one embodiment of the present disclosure, the charging circuit of the rechargeable battery remains disabled during the thermal drying cycle.

According to at least one embodiment of the present disclosure, the heating system is powered by mains electricity and the charging circuit of the rechargeable battery is activated during a thermal drying cycle.

Drawings

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

Fig. 1 is a schematic structural view of a surface cleaning system according to one embodiment of the present disclosure.

Fig. 2 is a schematic view of another angled configuration of a surface cleaning system according to one embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.

Fig. 4 is a block diagram of a surface cleaning system according to one embodiment of the present disclosure.

Fig. 5 is a flow chart of a method of controlling a surface cleaning system according to one embodiment of the present disclosure.

The reference numbers in the figures are in particular:

100 surface cleaning apparatus

110 fluid dispensing system

111 distribution channel

112 nozzle

113 supply tank

120 fluid recovery system

121 recovery channel

122 suction nozzle

123 recovery tank

130 frame part

140 cleaning part

141 cover

150 stirrer

160 first air flow accelerator

170 controller

180 rechargeable battery

200 base station

210 heating system

211 heating channel

212 channel entrance

213 channel outlet

214 heater

220 second airflow accelerator.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. Technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Unless otherwise indicated, the illustrated exemplary embodiments/examples are to be understood as providing exemplary features of various details of some ways in which the technical concepts of the present disclosure may be practiced. Thus, unless otherwise indicated, the features of the various embodiments/examples may be additionally combined, separated, interchanged, and/or rearranged without departing from the technical concept of the present disclosure.

The use of cross-hatching and/or shading in the drawings is generally used to clarify the boundaries between adjacent components. As such, unless otherwise noted, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated components and/or any other characteristic, attribute, property, etc., of a component. Further, in the drawings, the size and relative sizes of components may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be practiced differently, the specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in an order reverse to the order described. In addition, like reference numerals denote like parts.

When an element is referred to as being "on" or "on," "connected to" or "coupled to" another element, it can be directly on, connected or coupled to the other element or intervening elements may be present. However, when an element is referred to as being "directly on," "directly connected to" or "directly coupled to" another element, there are no intervening elements present. For purposes of this disclosure, the term "connected" may refer to physically, electrically, etc., and may or may not have intermediate components.

For descriptive purposes, the present disclosure may use spatially relative terms such as "under 8230; \8230;,"' under 8230; \8230; below 8230; under 8230; above, on, above 8230; higher "and" side (e.g., as in "side wall)", etc., to describe the relationship of one component to another (other) component as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "at 8230 \8230;" below "may encompass both an orientation of" above "and" below ". Moreover, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising" and variations thereof are used in this specification, the presence of stated features, integers, steps, operations, elements, components and/or groups thereof are stated but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as degree terms, and as such, are used to interpret inherent deviations in measured values, calculated values, and/or provided values that would be recognized by one of ordinary skill in the art.

Fig. 1 is a schematic structural view of a surface cleaning apparatus 100 according to one embodiment of the present disclosure.

The surface cleaning system may include a surface cleaning apparatus 100 and a base station 200 for docking the surface cleaning apparatus 100.

The surface cleaning apparatus 100 is used for cleaning a surface to be cleaned, and preferably, the surface cleaning apparatus 100 is capable of performing wet cleaning on the surface to be cleaned and recovering the liquid after cleaning the surface to be cleaned to the surface cleaning apparatus 100.

In one embodiment, the surface cleaning apparatus 100 is capable of cleaning a surface to be cleaned by frictional contact of the agitator 150 with the surface to be cleaned, and cleaning liquid can be supplied to the agitator 150 or the surface to be cleaned in the vicinity of the agitator 150 during frictional contact of the agitator 150 with the surface to be cleaned, thereby achieving wet cleaning of the surface to be cleaned.

In the present disclosure, the surface cleaning apparatus may include components such as a fluid distribution system 110 and a fluid recovery system 120.

In particular, the fluid dispensing system 110 is used to store a cleaning liquid and is capable of dispensing the stored cleaning liquid to the agitator 150 or a surface to be cleaned in the vicinity of the agitator 150. For example, the fluid distribution system 110 includes a distribution channel 111, a nozzle 112, and a supply tank 113, the supply tank 113 and the nozzle 112 at least partially defining the distribution channel 111.

In the present disclosure, the supply tank 113 is formed in the shape of a box to store the cleaning liquid in the supply tank 113. In one embodiment, the cleaning liquid may be clear water or a mixture of water and a cleaning agent.

The distribution passage 111 is connected to the supply tank 113 and the nozzle 112 to supply the cleaning liquid in the supply tank 113 to the nozzle 112 through the distribution passage 111, and in one embodiment, a pump may be provided on the distribution passage 111 to allow the cleaning liquid in the supply tank 113 to be supplied to the nozzle 112 after being pressurized, and further, the nozzle 112 may be supplied to the agitator 150 or the surface to be cleaned near the agitator 150.

In one embodiment, the surface cleaning apparatus 100 may further include a frame portion 130 and a cleaning portion 140, the cleaning portion 140 may be pivotally connected to the frame portion 130, wherein the stirrer 150 may form a part of the cleaning portion 140, and accordingly, the cleaning portion 140 may further include a driving member for driving the stirrer 150 to rotate, and the like, which will not be described in detail herein.

The cleaning part 140 includes a removable cover body 141, the cleaning part 140 is formed with a receiving cavity, an inner surface of the cover body 141 is formed as a substantially smooth surface, and an inner surface of the cover body 141 is formed as at least a part of a sidewall of the receiving cavity.

The supply tank 113 can be arranged inside the frame part 130, and the filling of the supply tank 113 with cleaning liquid can be achieved via an interface arranged on the frame part 130.

Accordingly, the nozzle 112 is disposed in the cleaning portion 140 and adjacent to the agitator 150, and at this time, a portion of the distribution passage 111 is located in the frame portion 130 and another portion is located in the cleaning portion 140.

The fluid recovery system 120 includes a recovery channel 121, a suction nozzle 122, and a recovery tank 123, the recovery tank 123 and the suction nozzle 122 at least partially defining the recovery channel 121.

In one embodiment, the suction nozzle 122 may be disposed at the cleaning portion 140 and behind the agitator 150 to facilitate collection of the dirty water after the agitator 150 cleans the surface to be cleaned.

The recovery channel 121 is located partly in the cleaning part 140 and partly in the frame part 130, and the recovery tank 123 is located in the frame part 130. For example, the frame part 130 is formed with a receiving space, and the recovery tank 123 is detachably disposed on the frame part 130, so that when the amount of liquid stored in the recovery tank 123 is large, a user can remove the recovery tank 123, pour out the sewage inside, and clean up the solid waste.

In the present disclosure, the surface cleaning apparatus 100 further includes a first airflow accelerator 160, the first airflow accelerator 160 being in fluid communication with the fluid recovery system 120 to enable forced flow of gas within the recovery channel 121 through the first airflow accelerator 160. In one embodiment, the first air flow accelerator 160 may be a suction device capable of generating a negative pressure that can be applied to the recovery tank 123, thereby enabling air to flow from the suction nozzle 122 to the recovery tank 123 and thus enabling sewage to flow in that direction as well. More preferably, the first air flow accelerator 160 is in fluid communication with the suction nozzle 122 for generating working air through a recovery path during the self-cleaning cycle.

In the present disclosure, the agitator 150 is disposed in the receiving cavity of the cleaning part and is located in the fluid distribution system 110 and the fluid recovery system 120, and the rotation axis of the agitator 150 is disposed laterally adjacent to the suction nozzle 122; thereby enabling to clean the surface to be cleaned by the agitator 150 and recover the cleaning liquid after cleaning the surface to be cleaned.

In the present disclosure, the base station 200 may comprise a heating system 210, the heating system 210 comprising a heating channel 211, a channel inlet 212, a channel outlet 213 and a heater 214, the channel inlet 212 and the channel outlet 213 at least partially defining the heating channel 211, the heater 214 being provided in the heating channel 211; thereby enabling the fluid within the heating passage 211 to be heated by the heater 214.

In one embodiment, the base station 200 further comprises a second airflow accelerator 220, the second airflow accelerator 220 being in fluid communication with the heating system 210 and forcing fluid flow within the heating channel 211 through the second airflow accelerator 220. In one embodiment, the second airflow accelerator 220 may be a fan or the like.

In one embodiment, when the surface cleaning apparatus 100 is provided to the base station 200, the agitator 150 is provided to the heating system 210, whereby the agitator 150 can be subjected to a drying process by the heating system 210.

The surface cleaning system comprises a controller 170, wherein the controller 170 may be formed as part of the surface cleaning apparatus 100, but of course also as part of the base station 200. In an embodiment of the present disclosure, the controller 170 is formed as a component of the surface cleaning apparatus 100. Also, when the surface cleaning apparatus 100 is docked at the base station 200, a communication link can be established between the surface cleaning apparatus 100 and the base station 200, whereby the controller 170 can control not only the first airflow accelerator 160, but correspondingly the second airflow accelerator 220 and agitator 150 to operate. In one embodiment, the controller 170 may be an embedded controller, such as a single chip or a DSP.

The surface cleaning apparatus 100 may further comprise a rechargeable battery 180, the rechargeable battery 180 for selectively powering the surface cleaning system; for example, the rechargeable battery 180 may power the controller 170, the first airflow accelerator 160, the agitator 150, the pump, etc. of the surface cleaning apparatus 100 that require electrical energy.

In the present disclosure, the controller 170 is configured to perform a thermal drying cycle after performing at least one self-cleaning cycle in which the cleaning liquid stored in the supply tank 113 is supplied to the pulsator 150 through the nozzle 112, the pulsator 150 rotates about a rotation axis in a first direction, the cleaning liquid near the pulsator 150 is recovered to the recovery tank 123 through the suction nozzle 122 after the self-cleaning cycle is completed, and the pulsator 150 rotates about the rotation axis in at least a second direction in which the first direction is opposite to the second direction; the charging circuit of the rechargeable battery 180 remains at least activated during the self-cleaning cycle and/or the thermal drying cycle.

When the agitator 150 rotates in the second direction, the agitator 150 is in interference with the substantially smooth inner surface of the cover 141, so that the inner surface of the cover 141 forms reverse interference with the fluff on the outer circumferential surface of the agitator 150, and the direction of the fluff on the outer circumferential surface of the agitator 150 is changed, thereby more sufficiently drying the fluff of the agitator 150 (roll brush).

Thus, the surface cleaning apparatus 100 of the present disclosure can be charged for a long period of time, even without interruption, while parked at a base station for maintenance. Thus, when the user is not completing the cleaning of the surface to be cleaned and the agitator 150 is dirty and requires cleaning, the surface cleaning apparatus 100 can be made to have a longer duration when the surface cleaning apparatus 100 is reused.

Specifically, the charging circuit of the rechargeable battery 180 is activated when the self-cleaning cycle is switched to the thermal drying cycle, thereby enabling the rechargeable battery to be charged at all times during the heat treatment of the agitator 150 by the surface cleaning apparatus 100.

In one implementation, the controller 170 is configured to: when the thermal drying cycle is started, the stirrer 150 is started to rotate in the second direction all the time around the rotation axis. Before the thermal drying cycle is completed, the stirrer 150 is started to rotate around the rotation axis in the second direction. During the execution of the thermal drying cycle, the rotation of the agitator 150 is started in the first direction and the second direction, respectively.

More preferably, during the execution of the thermal drying cycle is ended, the agitator 150 rotates in the second direction for a time period longer than that in the first direction, thereby making the fluff of the agitator 150 of the present disclosure softer.

In the present disclosure, the power of the first airflow accelerator 160 is reduced to 0 in the thermal drying cycle; that is, the first air flow accelerator 160 is controlled to stop its operation so that the hot air does not enter the recovery passage 121 and the recovery tank 123 after drying the agitator 150, thereby not affecting the recovery tank 123 and the like.

In one implementation, the charging circuit of the rechargeable battery 180 remains disabled during the thermal drying cycle.

In another implementation, during a thermal drying cycle, the heating system 210 is powered by mains electricity and the charging circuit of the rechargeable battery 180 is activated.

According to another aspect of the present disclosure, a method for controlling a surface cleaning system is provided, where the surface cleaning system may be the surface cleaning system described above, and details regarding the structure of the surface cleaning system are not repeated herein.

The control method of the surface cleaning system comprises the following steps: the surface cleaning apparatus 100 receives a heat treatment signal for heat treating the agitator 150 of the surface cleaning apparatus 100; and based on the heat treatment signal, the controller 170 of the surface cleaning apparatus 100 performs at least one self-cleaning cycle and performs one thermal drying cycle; wherein, in performing the self-cleaning cycle, the cleaning liquid stored in the supply tank 113 is supplied to the pulsator 150 through the spray nozzle 112, the pulsator 150 rotates around the rotation shaft in a first direction, after the self-cleaning cycle is finished, the cleaning liquid near the pulsator 150 is recovered to the recovery tank 123 through the suction nozzle 122, in performing a thermal drying cycle, the pulsator 150 rotates around the rotation shaft in at least a second direction, and the first direction is opposite to the second direction; the charging circuit of the rechargeable battery 180 remains at least activated during the self-cleaning cycle and/or the thermal drying cycle.

In the present disclosure, the heat treatment signal may be generated by triggering a self-cleaning button of the surface cleaning apparatus 100, or may be generated by triggering a virtual button of an APP installed on a smart device such as a mobile phone, and after the surface cleaning apparatus 100 receives the heat treatment signal, it determines that the states of the surface cleaning apparatus and the base station can satisfy the requirements of the heat treatment, that is, the agitator 150 of the surface cleaning apparatus 100 may be subjected to the heat treatment.

While thermally treating the agitator 150 of the surface cleaning apparatus 100, the controller 170 of the surface cleaning apparatus 100 performs at least one self-cleaning cycle and performs one thermal drying cycle; in one embodiment, only one self-cleaning cycle and one thermal drying cycle may be performed during the heat treatment of the agitator 150. Of course, the self-cleaning cycle may be performed a plurality of times, but the thermal drying cycle may be performed only once.

More preferably, the stirrer 150 is rotated in the second direction for a longer time than in the first direction during the thermal drying cycle is completed.

In the present disclosure, in the thermal drying cycle, the power of the first airflow accelerator 160 is reduced to 0; that is, the first air flow accelerator 160 is controlled to stop its operation so that the hot air does not enter the recovery passage 121 and the recovery tank 123 after drying the agitator 150, thereby not affecting the recovery tank 123 and the like.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

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

It will be understood by those skilled in the art that the foregoing embodiments are provided merely for clarity of explanation and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims

1. A surface cleaning system, comprising:

a cleaning portion including a removable cover body formed with a receiving cavity, an inner surface of the cover body being formed as a substantially smooth surface, and an inner surface of the cover body being formed as at least a part of a side wall of the receiving cavity;

the stirrer is arranged in the accommodating cavity of the cleaning part, is positioned in the fluid distribution system, the fluid recovery system and the heating system, and has a rotation shaft which is transversely arranged close to the suction nozzle;

a first pneumatic actuator in fluid communication with the fluid recovery system;

a second airflow accelerator in fluid communication with the heating system;

a rechargeable battery for selectively powering a surface cleaning system;

wherein the controller is configured to perform at least one self-cleaning cycle in which cleaning liquid stored in the supply tank is supplied to the agitator through the nozzle, the agitator rotates in a first direction around the rotation axis, the cleaning liquid near the agitator is recovered to the recovery tank through the suction nozzle after the self-cleaning cycle is completed, and to perform a thermal drying cycle in which the agitator rotates in at least a second direction around the rotation axis, the first direction being opposite to the second direction, the agitator interfering with the substantially smooth inner surface of the cover when the agitator rotates in the second direction, so that the inner surface of the cover forms reverse interference with the pile on the outer peripheral surface of the agitator, and the reverse direction of the pile on the outer peripheral surface of the agitator is changed; during a self-cleaning cycle and/or a thermal drying cycle, a charging circuit of the rechargeable battery remains at least activated.

2. The surface cleaning system of claim 1, wherein a charging circuit of the rechargeable battery is activated when a self-cleaning cycle is switched to a thermal drying cycle.

3. The surface cleaning system of claim 1, wherein the controller is configured to: and starting the stirrer to rotate around the rotation shaft in the second direction all the time when the thermal drying cycle is started.

4. The surface cleaning system of claim 1, wherein the controller is configured to: and before the thermal drying cycle is finished, starting the stirrer to rotate around the rotation shaft in a second direction.

5. The surface cleaning system of claim 1, wherein the controller is configured to: during the execution of the thermal drying cycle, the agitator is activated to rotate in a first direction and a second direction, respectively.

6. A surface cleaning system as claimed in claim 4, characterised in that the agitator is rotated in the second direction for a longer period of time than in the first direction during the end of the thermal drying cycle.

7. A surface cleaning system as claimed in claim 1, characterised in that the power of the first airflow accelerator is reduced to 0 during the thermal drying cycle.

8. The surface cleaning system of claim 1, wherein an airflow path does not pass through the recovery tank during the thermal drying cycle.

9. The surface cleaning system of claim 1, wherein the first airflow accelerator is in fluid communication with the suction nozzle for generating working gas through a recovery path during the self-cleaning cycle.

10. The surface cleaning system of claim 1, wherein a charging circuit of the rechargeable battery remains disabled during the thermal drying cycle;

optionally, in a thermal drying cycle, the heating system is powered by mains electricity and the charging circuit of the rechargeable battery is activated.