Cleaning system and dust collection device

Abstract

The application discloses a cleaning system and a dust collecting device. The cleaning system comprises a cleaning device, a base station and a dust collecting device. The dust collecting device is connected to the base station and recovers dirt in the cleaning device through the base station. The dust collecting device comprises a device main body and a negative pressure assembly. The device main body is provided with a drying cavity for accommodating the cleaning device. The negative pressure assembly is arranged on the device main body and is used for outputting a drying air flow to the drying cavity to dry the cleaning device. In this way, the application can reduce the maintenance frequency of the user and dry the cleaning device.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, specifically to a cleaning system and a dust collection device. Background Technology

[0002] Cleaning robots, equipped with functions such as washing, sweeping, and mopping, can perform cleaning tasks like floor cleaning for users, bringing them great convenience and thus gaining widespread application. Cleaning robots are typically equipped with a base station. Currently, traditional base stations on the market usually integrate dust bags inside to collect the dirt collected by the cleaning robot. Due to the limited internal space of the base station, the volume of the dust bag is often small, meaning users often need to replace the dust bag frequently, which is time-consuming and laborious. Summary of the Invention

[0003] This application provides a cleaning system and a dust collection device, which helps reduce the frequency of maintenance for users and can dry the cleaning components of the cleaning device.

[0004] This application provides a cleaning system, including: a cleaning device having a cleaning component; a base station; and a dust collection device externally connected to the base station, wherein the dust collection device collects dirt from the cleaning device through the base station; wherein the dust collection device includes: a device body having a drying chamber for accommodating the cleaning component; and a negative pressure component disposed in the device body, wherein the negative pressure component is used to output a drying airflow to the drying chamber to dry the cleaning component.

[0005] In one embodiment of this application, the negative pressure component includes: a fan; and a cover having a receiving cavity and a first heat dissipation air inlet and a heat dissipation air outlet communicating with the receiving cavity. The fan is housed in the receiving cavity, and the heat dissipation air outlet is also communicating with the drying cavity. Under the suction action of the fan, the gas outside the cover enters the receiving cavity from the first heat dissipation air inlet to dissipate heat from the fan, and then is discharged to the drying cavity through the heat dissipation air outlet to dry the cleaned parts.

[0006] In one embodiment of this application, the main body of the device is provided with a first air inlet and an opening. The heat dissipation air outlet is connected to the drying chamber through the first air inlet. The gas discharged from the heat dissipation air outlet enters the drying chamber through the first air inlet. The drying chamber is connected to the outside of the main body of the device through the opening. The dust collection device also includes a door body connected to the main body of the device. The door body is used to close the opening, and a second air inlet is provided on the door body. The gas in the drying chamber is discharged to the outside of the main body of the device through the second air inlet.

[0007] In one embodiment of this application, the main body of the device includes: a base; a body that docks with the base to form an installation cavity, with an opening in the body; and a bracket that is installed in the installation cavity, with the drying cavity located in the bracket, and the door being rotatably connected to the bracket.

[0008] In one embodiment of this application, the first heat dissipation air inlet is located at the bottom of the cover, the heat dissipation air outlet is located on the side wall of the cover, the outer side wall of the fan and the inner side wall of the cover are spaced apart to form a first heat dissipation flow channel, and the gas entering from the first heat dissipation air inlet passes through the first heat dissipation flow channel and is discharged through the heat dissipation air outlet.

[0009] In one embodiment of this application, the main body of the device includes: a base; a body that docks with the base to form an installation cavity, the body having a second heat dissipation air inlet communicating with the outside of the installation cavity; a bracket that is installed in the installation cavity, a cover being disposed on the bracket; and a heat dissipation sealing cover that is connected to the bracket and is located on the bottom side of the cover, the heat dissipation sealing cover and the bracket cooperating to form a heat dissipation air inlet channel and separating the heat dissipation air inlet channel from the rest of the installation cavity, the heat dissipation air inlet channel communicating with the first heat dissipation air inlet and the second heat dissipation air inlet respectively.

[0010] In one embodiment of this application, the device body has an assembly cavity for assembling a cover. The inner wall of the assembly cavity is provided with a first baffle and a second baffle. The first baffle and the second baffle are spaced apart from each other along the circumference of the cover. When the cover is assembled in the assembly cavity, the cover, the device body, the first baffle and the second baffle cooperate to form a second heat dissipation channel. The second heat dissipation channel and the heat dissipation outlet are located on the same side of the first baffle and the second baffle.

[0011] In one embodiment of this application, there are at least two first baffles, each first baffle is distributed sequentially at intervals along the circumference of the cover, and the outer side wall of the cover is provided with a first rib, which is embedded in the gap between adjacent first baffles; there are at least two second baffles, each second baffle is distributed sequentially at intervals along the circumference of the cover, and the outer side wall of the cover is also provided with a second rib, which is embedded in the gap between adjacent second baffles.

[0012] In one embodiment of this application, the dust collection device further includes: a first heat dissipation seal near the top of the second heat dissipation channel, and the first heat dissipation seal is sandwiched between the cover and the main body of the device; and a second heat dissipation seal near the bottom of the second heat dissipation channel, and the second heat dissipation seal is sandwiched between the cover and the main body of the device.

[0013] In one embodiment of this application, the dust collection device further includes: a dust collection component disposed on the main body of the device and connected to the base station; wherein, the cover also has an air intake channel and an air exhaust channel communicating with the accommodating cavity, a fan is connected to the dust collection component through the air intake channel, the fan is connected to the outside of the cover through the air exhaust channel, the fan draws gas from the dust collection component through the air intake channel and discharges it to the outside of the cover through the air exhaust channel, so as to create a negative pressure environment in the dust collection component so that the dust collection component can recover dirt from the cleaning device through the base station.

[0014] In one embodiment of this application, the base station includes: a base station body; and a dust collection component disposed on the base station body, the dust collection component being used to connect with a dust collection assembly; wherein, the dust collection component has a dust collection channel inside, and a dust collection port communicating with the dust collection channel is opened on the top of the dust collection component, the dust collection port being used to dock with the dust box of the cleaning device when the cleaning device returns to the base station, and the dirt in the dust box is collected into the dust collection assembly in sequence through the dust collection port and the dust collection channel.

[0015] In one embodiment of this application, the cover is further provided with an air inlet communicating with the accommodating cavity; the negative pressure assembly further includes: an air inlet seal, which surrounds the air inlet channel, and the air inlet seal includes a first sealing part, a second sealing part and a connecting part, the connecting part passing through the air inlet, the first sealing part being connected to the end of the connecting part near the fan, and the first sealing part being sandwiched between the cover and the fan to form a seal, the second sealing part being connected to the end of the connecting part away from the fan; and an air inlet pipe, which is connected to the dust collection assembly, and the air inlet pipe also abuts against the second sealing part to form a seal, and the fan draws gas from the dust collection assembly through the air inlet pipe.

[0016] In one embodiment of this application, the negative pressure assembly further includes a silencer connected to the cover, wherein the gas discharged from the exhaust duct is discharged to the outside of the negative pressure assembly after passing through the silencer.

[0017] In one embodiment of this application, the silencer is located at the bottom of the enclosure; the exhaust channel includes a first sub-channel and a second sub-channel connected together, the first sub-channel surrounds the outer periphery of the accommodating cavity, and the second sub-channel extends toward the silencer to communicate with the silencer, and the gas drawn in by the fan is discharged to the silencer in sequence through the first sub-channel and the second sub-channel.

[0018] In one embodiment of this application, the cover includes: an upper cover; and a lower cover, which is connected to the upper cover to form a receiving cavity and a first sub-channel, and the second sub-channel is located in the lower cover; the negative pressure assembly further includes: a first exhaust seal, sandwiched between the fan and the lower cover, and the first exhaust seal is located on the side of the first sub-channel closer to the receiving cavity; and a second exhaust seal, sandwiched between the upper cover and the lower cover, and the second exhaust seal is located on the side of the first sub-channel away from the receiving cavity, the first exhaust seal and the second exhaust seal cooperate to seal the first sub-channel.

[0019] Accordingly, this application also provides a dust collection device for use as a base station externally connected to a cleaning device. The cleaning device has a cleaning component. The dust collection device includes: a device body having a drying chamber for accommodating the cleaning component; and a negative pressure component disposed in the device body, the negative pressure component being used to output a drying airflow to the drying chamber to dry the cleaning component.

[0020] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a cleaning system and a dust collection device. The dust collection device is externally connected to the base station, and it collects dirt from the cleaning device through the base station. Because the dust collection device is external to the base station, rather than integrated inside, it allows for a larger volume of dust collection components to collect dirt, free from the limitations of the base station's internal space. Users no longer need to perform frequent maintenance on the dust collection components (e.g., cleaning the dirt from the components), thus reducing maintenance frequency and user burden. Furthermore, users can choose whether to equip the base station with a dust collection device based on their actual needs, meeting more diverse user requirements.

[0021] Furthermore, the cleaning device includes a cleaning component. After cleaning, the cleaning component is typically damp. The dust collection device of this application has a drying chamber for housing the cleaning component, and a negative pressure component of the dust collection device outputs a drying airflow into the drying chamber to dry the cleaning component. This dust collection device can dry the cleaning component of the cleaning device, keeping it as dry as possible to prevent bacterial growth. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figures 1a-1c This is a schematic diagram of the structure of an embodiment of the base station and dust collection device of this application;

[0024] Figure 2 This is a schematic diagram of the structure of an embodiment of the dust collection device of this application;

[0025] Figure 3 This is an exploded structural diagram of an embodiment of the dust collection device of this application;

[0026] Figure 4 This is a schematic diagram of the structure of an embodiment of the fan and cover of this application;

[0027] Figure 5 yes Figure 4 A schematic cross-sectional view of the fan and its enclosure shown.

[0028] Figure 6 This is a partial cross-sectional view of an embodiment of the dust collection device of this application;

[0029] Figure 7This is a partial cross-sectional view of an embodiment of the negative pressure component of this application assembled on a bracket;

[0030] Figure 8 This is a schematic diagram of the structure of one embodiment of the main body of this application;

[0031] Figure 9 This is an exploded structural diagram of an embodiment of the negative pressure assembly and support of this application;

[0032] Figure 10 This is a partial cross-sectional view of another embodiment of the negative pressure component of this application assembled on the bracket. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0034] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] This application provides a cleaning system and a dust collection device, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0036] Please see Figures 1a-1c as well as Figure 2 , Figures 1a-1c This is a schematic diagram of an embodiment of the base station and dust collection device of this application. Figure 2 This is a schematic diagram of the structure of an embodiment of the dust collection device of this application.

[0037] In one embodiment, the cleaning system includes a cleaning device and a base station 10. The cleaning device can be a cleaning robot or other cleaning equipment, capable of moving autonomously across the surface to be cleaned and cleaning the areas it passes through. Of course, in other embodiments of this application, the cleaning device can also be a washing machine, floor scrubber, or other cleaning equipment, where the user holds the cleaning device and pushes it across the surface to be cleaned, thus cleaning the areas it passes through. This application uses a cleaning robot as an example for illustration only and is not intended to limit the scope of the application. The cleaning device has a cleaning component 40 for performing cleaning work, which can be a roller brush, a cloth, a brush, etc. This application uses a roller brush as an example. The cleaning device also has a dust box 30 for storing dirt collected by the cleaning device during the cleaning process. The cleaning device is used in conjunction with the base station 10, which is used for charging the cleaning device and other tasks to assist the cleaning device in its cleaning work.

[0038] The cleaning system also includes a dust collection device 20. As its name suggests, the dust collection device 20 has a dust collection function. The dust collection device 20 is externally connected to the base station 10, and it collects dirt from the cleaning device through the base station 10. In this embodiment, the dust collection device 20 is externally connected to the base station 10, meaning it is located outside the base station 10 rather than integrated inside. This allows for a larger volume of dust collection device 20 to collect dirt, without being limited by the internal space of the base station 10. Users no longer need to maintain the dust collection device 20 frequently (e.g., cleaning the dirt from it), thus reducing maintenance frequency and user burden. The external connection of the dust collection device 20 to the base station 10 should be understood as a detachable connection. Users can connect the dust collection device 20 to the base station 10, and it can then be used to collect dirt from the cleaning device, achieving immediate use. Furthermore, users can choose whether the base station 10 is equipped with the dust collection device 20 according to their actual needs, meeting more diverse user requirements. Of course, the dust collection device 20 and the base station 10 can also be fixedly connected, which is not limited here.

[0039] Please refer to the following: Figure 3 , Figure 3 This is an exploded structural diagram of an embodiment of the dust collection device of this application. The dust collection device 20 of this application embodiment will be described below.

[0040] In one embodiment, the dust collection device 20 includes a device body 21. As the name suggests, the device body 21 serves as the basic carrier of the dust collection device 20, supporting and protecting the other components of the dust collection device 20. The dust collection device 20 also includes a negative pressure component 22, which is disposed within the device body 21. The dust collection device 20 further includes a dust collection component 23, which is disposed within the device body 21 and connected to the negative pressure component 22. The dust collection component 23 is also connected to the base station 10. The negative pressure component 22 creates a negative pressure environment within the dust collection component 23, allowing the dust collection component 23 to collect dirt from the cleaning device via the base station 10.

[0041] Base station 10 includes base station body 11. As its name suggests, base station body 11 is the basic carrier of base station 10, providing support and protection for the remaining components of base station 10. For example... Figure 1a and Figure 1b As shown, the base station 10 also includes a dust collection component 12, which is disposed on the base station body 11 and is used to connect with the dust collection assembly 23. The dust collection component 12 has a dust collection channel inside, and a dust collection port 121 communicating with the dust collection channel is opened on the top of the dust collection component 12. The dust collection port 121 is used to dock with the dust box 30 of the cleaning device when the cleaning device returns to the base station 10. The dirt in the dust box 30 is collected into the dust collection assembly 23 in sequence through the dust collection port 121 and the dust collection channel.

[0042] Since the dust box 30 is usually located near the bottom of the cleaning device, in this embodiment, the dust collection component 12 is located near the bottom of the base station body 11, so that when the cleaning device returns to the base station 10, the dust collection port 121 can easily dock with the dust box 30. An external sheet metal part can also be provided on the main body 21 of the dust collection device 20, and the dust collection device 20 is connected to the base station 10 through the external sheet metal part, so that the dust collection device 20 is externally connected to the base station 10.

[0043] The dust collection assembly 23 includes a dust collection bin 231 and a dust collection pipe 232. The dust collection bin 231 is connected to the negative pressure assembly 22 and is used to store the collected dirt. The dust collection pipe 232 is connected to the dust collection bin 231 and is also used to connect to the base station 10. The negative pressure assembly 22 is used to create a negative pressure environment inside the dust collection bin 231, so that the dust collection pipe 232 can collect dirt from the cleaning device into the dust collection bin 231 through the base station 10.

[0044] The dust collection bin 231 is detachably connected to the main body 21 of the dust collection device 20. When the dust collection bin 231 needs to be cleaned, the user removes it from the main body 21 to clean it. After cleaning, the dust collection bin 231 is reinstalled back into the main body 21. Traditional base stations 10 typically use dust bags to collect waste, which, as consumables, undoubtedly increase the user's operating costs. In this embodiment, the dust collection bin 231 is reusable, replacing the dust bag and reducing the user's operating costs.

[0045] One end of the dust collection pipe 232 is fixed to the main body 21 of the dust collection device 20 via a sheath and clamps to connect to the dust collection bin 231. The other end of the dust collection pipe 232 is used to connect to the dust collection component 12 of the base station 10. The dust collection pipe 232 protrudes from the main body 21, facilitating unblocking and cleaning when the dust collection pipe 232 is clogged. Several elastic clamps are provided on the main body 21, through which the dust collection pipe 232 is fixed to the main body 21. The dust collection pipe 232 can be a corrugated flexible hose, meaning its length is adjustable. When the user needs to use the dust collection device 20, the user extends the dust collection pipe 232 and connects it to the base station 10. After use, the user can easily store the dust collection pipe 232 and re-fix it to the main body 21 of the dust collection device 20. Furthermore, the power cord and signal line of the dust collection device 20 are electrically connected to the base station body 11 via an aviation connector, so that the base station 10 can supply power to the dust collection device 20 and control the dust collection device 20 to operate. The aviation connector enables waterproof and dustproof functions between the power cord and signal line of the dust collection device 20 and the base station body 11.

[0046] Please refer to the following: Figure 4 and Figure 5 , Figure 4 This is a structural schematic diagram of an embodiment of the fan and housing of this application. Figure 5 yes Figure 4 The diagram shows a cross-sectional view of the fan and its enclosure.

[0047] In one embodiment, the negative pressure assembly 22 includes a fan 221, which creates a negative pressure environment in the dust collection assembly 23, allowing the dust collection assembly 23 to collect dirt from the cleaning device via the base station 10. The negative pressure assembly 22 also includes a cover 222. The cover 222 has a receiving cavity 2221 and an air intake channel 2222 and an air exhaust channel 2223 communicating with the receiving cavity 2221. The fan 221 is housed in the receiving cavity 2221. The fan 221 is connected to the dust collection assembly 23 via the air intake channel 2222 and connected to the outside of the cover 222 via the air exhaust channel 2223. The fan 221 draws gas from the dust collection assembly 23 through the air intake channel 2222 and discharges it to the outside of the cover 222 via the air exhaust channel 2223, thereby creating a negative pressure environment in the dust collection assembly 23.

[0048] Optionally, the cover 222 includes an upper cover 2225 and a lower cover 2226. The upper cover 2225 and the lower cover 2226 are joined to form a receiving cavity 2221. In this embodiment, the fan 221 can be a centrifugal fan 221 or the like, and the exhaust method of the fan 221 is centrifugal exhaust. The suction channel 2222 is located at the top of the fan 221, and the exhaust channel 2223 surrounds the outer periphery of the fan 221. The fan 221 draws gas from the dust collection assembly 23 through the suction channel 2222 at its top and exhausts the gas centrifugally through the circumferential exhaust channel 2223.

[0049] In one embodiment, the negative pressure assembly 22 further includes a suction seal 223, which surrounds a suction channel 2222 and also serves to seal the area between the fan 221 and the cover 222 at the location of the suction channel 2222, ensuring the airtightness of the suction channel 2222 and improving dust collection efficiency and effect. Specifically, the cover 222 also has a suction port 2224, which communicates with the accommodating cavity 2221. Specifically, the suction port 2224 is located at the top of the cover 222, and the suction seal 223 is also located at the top of the cover 222. The suction seal 223 includes a first sealing part 2231, a second sealing part 2232, and a connecting part 2233. The connecting part 2233 passes through the suction port 2224. The first sealing part 2231 is connected to the end of the connecting part 2233 near the fan 221, and the first sealing part 2231 is sandwiched between the cover 222 and the fan 221 to form a seal. The second sealing part 2232 is connected to the end of the connecting part 2233 away from the fan 221. The second sealing part 2232 extends to the outside of the cover 222. Please refer to the following: Figure 6 , Figure 6A portion of the dust collection device 20 is cut open to reveal its internal structure. The negative pressure assembly 22 also includes a suction pipe 224. The suction pipe 224 is connected to the dust collection assembly 23, specifically to the dust collection bin 231. The suction pipe 224 also abuts against the second sealing part 2232 to form a seal, ensuring the airtightness of the suction pipe 224 and its connection with the second sealing part 2232, which helps improve dust collection efficiency and effect. The fan 221 draws gas from the dust collection assembly 23 through the suction pipe 224.

[0050] Furthermore, please refer to the following: Figure 7 , Figure 7 A portion of the structure is cut open to reveal its internal components. Considering the significant wind noise generated by the exhaust gas from the exhaust duct 2223, the negative pressure assembly 22 in this embodiment also includes a silencer 225. The silencer 225 is connected to the enclosure 222, and the gas exhausted from the exhaust duct 2223 passes through the silencer 225 before being discharged to the outside of the negative pressure assembly 22. In this way, the silencer 225 effectively reduces the wind noise of the gas exhausted from the exhaust duct 2223.

[0051] The silencer 225 is located at the bottom of the enclosure 222. The exhaust duct 2223 includes a first sub-duct 2223a and a second sub-duct 2223b connected together. The first sub-duct 2223a surrounds the outer periphery of the accommodating cavity 2221, and the second sub-duct 2223b extends toward the silencer 225 to connect to it. The gas drawn in by the fan 221 is discharged to the silencer 225 through the first sub-duct 2223a and the second sub-duct 2223b in sequence. The gas centrifugally discharged by the fan 221 enters the first sub-duct 2223a and flows circumferentially along the fan 221 to the second sub-duct 2223b. The gas reaching the second sub-duct 2223b flows along the second sub-duct 2223b to the silencer 225, and is finally discharged to the outside of the enclosure 222 after being reduced in noise by the silencer 225. The main body 21 of the device includes a base 211, a main body 212, and a support 213. The main body 212 and the base 211 are mated to form a mounting cavity, the support 213 is installed in the mounting cavity, and the cover 222 is disposed on the support 213. Please refer to the following: Figure 8 The main body 212 also has an exhaust port 2122. The mounting cavity is connected to the outside through the exhaust port 2122. The gas discharged through the exhaust channel 2223 is discharged to the outside of the mounting cavity through the exhaust port 2122. The gas discharged from the silencer 225 enters the mounting cavity and is then discharged to the outside through the exhaust port 2122. There can be multiple exhaust ports 2122, and each exhaust port 2122 is arranged at intervals on the main body 212. Figure 8 An example is shown where each exhaust vent 2122 is distributed at intervals along the height direction of the main body 212.

[0052] The upper cover 2225 and the lower cover 2226 of the enclosure are joined to form a first sub-channel 2223a, and a second sub-channel 2223b is located in the lower cover 2226. The negative pressure assembly 22 also includes a first exhaust seal 2271, which is sandwiched between the fan 221 and the lower cover 2226, so that a seal is formed between the fan 221 and the lower cover 2226 at the location of the first exhaust seal 2271, ensuring the airtightness of the first sub-channel 2223a and preventing the gas discharged by the fan 221 from wandering around in the enclosure 222. The negative pressure assembly 22 also includes a second exhaust seal 2272, which is sandwiched between the upper cover 2225 and the lower cover 2226 of the enclosure, forming a seal between the upper cover 2225 and the lower cover 2226 at the location of the second exhaust seal 2272. This ensures the airtightness of the first sub-channel 2223a and prevents the gas discharged from the fan 221 from escaping within the enclosure 222. Furthermore, the first exhaust seal 2271 is located on the side of the first sub-channel 2223a closer to the receiving cavity 2221, while the second exhaust seal 2272 is located on the side of the first sub-channel 2223a away from the receiving cavity 2221. The first exhaust seal 2271 and the second exhaust seal 2272 cooperate to seal the first sub-channel 2223a.

[0053] In one embodiment, considering that the fan 221 will generate a large amount of heat during long-term operation and needs to be dissipated in a timely manner to ensure its reliable operation, the cover 222 in this embodiment is also provided with a first heat dissipation air inlet 2227 and a heat dissipation air outlet 2228. The first heat dissipation air inlet 2227 is connected to the accommodating cavity 2221, and the heat dissipation air outlet 2228 is also connected to the accommodating cavity 2221. Under the suction action of the fan 221, the gas outside the cover 222 enters the accommodating cavity 2221 through the first heat dissipation air inlet 2227 to dissipate heat from the fan 221, and then is discharged to the outside of the cover 222 through the heat dissipation air outlet 2228.

[0054] Since the operating temperature of the fan 221 is much higher than the ambient temperature, the lower temperature of the gas in the ambient environment can be used to dissipate heat from the fan 221. In this embodiment, the fan 221 not only has the function of creating a negative pressure environment in the dust collection assembly 23, but also can draw relatively cool gas from outside the cover 222 into the accommodating cavity 2221 through the first heat dissipation air inlet 2227 to dissipate heat from the fan 221. The gas entering from the first heat dissipation air inlet 2227 exchanges heat with the fan 221, and then is discharged to the outside of the cover 222 through the heat dissipation air outlet 2228.

[0055] Specifically, the first heat dissipation air inlet 2227 is located at the bottom of the cover 222. The heat dissipation air outlet 2228 is located on the side wall of the cover 222, and the heat dissipation air outlet 2228 is closer to the first heat dissipation air inlet 2227 than the first sub-channel 2223a. The outer side wall of the fan 221 is spaced apart from the inner side wall of the cover 222 to form a first heat dissipation flow channel 226. The gas entering from the first heat dissipation air inlet 2227 passes through the first heat dissipation flow channel 226 and is discharged through the heat dissipation air outlet 2228. There can be multiple first heat dissipation air inlets 2227, and each first heat dissipation air inlet 2227 is distributed at intervals at the bottom of the cover 222.

[0056] Furthermore, the dust collection device 20 also includes an air inlet seal 26, which is sandwiched between the bottom of the fan 221 and the cover 222 to form a seal. The air inlet seal 26 is used to separate the first heat dissipation air inlet 2227 from the first heat dissipation flow channel 226, so as to ensure that under the suction action of the fan 221, the gas outside the cover 222 flows from the first heat dissipation air inlet 2227 to the fan 221 to dissipate heat from the fan 221, and prevents the gas from bypassing the fan 221 and being discharged directly from the heat dissipation air outlet 2228, which is beneficial to ensuring the heat dissipation effect of the fan 221.

[0057] In one embodiment, the main body 212 of the device body 21 has a second heat dissipation air inlet 2121 communicating with the outside of the mounting cavity. The device body 21 also includes a heat dissipation sealing cover 215, which is connected to the bracket 213 of the device body 21 and is located on the bottom side of the cover 222. The heat dissipation sealing cover 215 and the bracket 213 cooperate to form a heat dissipation air inlet channel 216 and separate the heat dissipation air inlet channel 216 from the rest of the mounting cavity. The heat dissipation air inlet channel 216 communicates with the first heat dissipation air inlet 2227 and the second heat dissipation air inlet 2121 respectively. The heat dissipation sealing cover 215 and the portion of the bracket 213 located on the bottom side of the cover 222 form the heat dissipation air inlet channel 216, and this portion of the heat dissipation sealing cover 215 is away from the cover 222 relative to the bracket 213. The heat dissipation air inlet channel 216 is relatively sealed, so the heat dissipation sealing cover 215 can separate the heat dissipation air inlet channel 216 from the rest of the mounting cavity. Since the gas discharged from the silencer 225 has a high temperature and will be discharged into the installation cavity, the heat dissipation sealing cover 215 in this embodiment can prevent the gas from entering the heat dissipation air intake channel 216, thus ensuring the heat dissipation effect of the fan 221.

[0058] Optionally, there can be multiple second heat dissipation air inlets 2121, and each second heat dissipation air inlet 2121 is distributed sequentially at intervals along the height direction of the body 212. Furthermore, the second heat dissipation air inlets 2121 and the aforementioned exhaust vents 2122 are located on the same side of the body 212, such as... Figure 8 As shown.

[0059] Please refer to the following: Figure 9 and Figure 10 , Figure 9 This is an exploded structural diagram of an embodiment of the negative pressure assembly and support of this application. Figure 10 This is a partial cross-sectional view of another embodiment of the negative pressure component of this application assembled on the bracket.

[0060] In one embodiment, the device body 21 has an assembly cavity 217 for assembling the cover 222. Specifically, the assembly cavity 217 is located on the support 213 of the device body 21. The inner wall of the assembly cavity 217 is provided with a first baffle 2181 and a second baffle 2182, which are spaced apart from each other along the circumference of the cover 222. When the cover 222 is assembled into the assembly cavity 217, the cover 222, the device body 21, the first baffle 2181, and the second baffle 2182 cooperate to form a second heat dissipation channel 228. The second heat dissipation channel 228 and the heat dissipation outlet 2228 are located on the same side of the first baffle 2181 and the second baffle 2182. The first heat dissipation channel 226 is connected to the second heat dissipation channel 228 through the heat dissipation outlet 2228. The high-temperature gas, after being cooled by the fan 221, is discharged sequentially through the first heat dissipation channel 226, the heat dissipation outlet 2228, and the second heat dissipation channel 228. The gas flow direction is as follows: Figure 10 As indicated by the middle arrow M.

[0061] In this embodiment, the first baffle 2181 and the second baffle 2182 form a second heat dissipation channel 228, which forms a separate chamber. The second heat dissipation channel 228 is used to guide the high-temperature gas after the fan 221 has been cooled to discharge, so as to prevent the gas from flowing to other positions of the dust collection device 20.

[0062] Specifically, there are at least two first baffles 2181, and each first baffle 2181 is distributed sequentially at intervals along the circumference of the cover 222. Figure 9 The example illustrates a scenario where two first baffles 2181 are arranged close to each other. A first rib 2229a protrudes from the outer wall of the cover 222, and is embedded in the gap between adjacent first baffles 2181. Because the first baffles 2181 and the first rib 2229a are close to each other, they form a relatively sealed structure to ensure the airtightness of the second heat dissipation channel 228. Of course, in other embodiments of this application, sealing elements such as sealant or sealing rings can be provided between the first baffles 2181 and the first rib 2229a to further improve the airtightness of the second heat dissipation channel 228.

[0063] Similarly, there are at least two second baffles 2182, and each second baffle 2182 is distributed sequentially at intervals along the circumference of the cover 222. Figure 9 The example demonstrates a case where there are two second baffles 2182, which are arranged close to each other. The outer wall of the cover 222 also has a protruding second rib 2229b, which is embedded in the gap between adjacent second baffles 2182. Because the second baffles 2182 and the second rib 2229b are close to each other, they can form a relatively sealed structure to ensure the airtightness of the second heat dissipation channel 228. Of course, in other embodiments of this application, sealing elements such as sealant or sealing rings can be provided between the second baffles 2182 and the second rib 2229b to further improve the airtightness of the second heat dissipation channel 228.

[0064] In one embodiment, the dust collection device 20 further includes a first heat dissipation seal 241 and a second heat dissipation seal 242. The first heat dissipation seal 241 is located near the top of the second heat dissipation channel 228 and is sandwiched between the cover 222 and the device body 21 to seal the top of the second heat dissipation channel 228. The second heat dissipation seal 242 is located near the bottom of the second heat dissipation channel 228 and is sandwiched between the cover 222 and the device body 21 to seal the bottom of the second heat dissipation channel 228. In this way, this embodiment uses the first heat dissipation seal 241 and the second heat dissipation seal 242 to seal the second heat dissipation channel 228, thereby further improving the airtightness of the second heat dissipation channel 228.

[0065] Optionally, the first heat dissipation seal 241 can be a semi-annular structure to match the structure of the second heat dissipation channel 228 enclosed by the first baffle 2181 and the second baffle 2182. The second heat dissipation seal 242 can be a complete annular structure to maximize the airtightness of the second heat dissipation channel 228.

[0066] Please continue reading. Figure 2 as well as Figure 10 In one embodiment, the main body 21 of the dust collection device 20 has a drying chamber 2191 for accommodating the cleaning component 40, specifically a support 213 located on the main body 21. The negative pressure assembly 22 of the dust collection device 20 outputs a drying airflow to the drying chamber 2191 to dry the cleaning component 40.

[0067] In this embodiment, considering that the cleaning component 40 is usually damp after the cleaning device performs its cleaning work, the main body 21 of the dust collection device 20 has a drying chamber 2191 for accommodating the cleaning component 40. The negative pressure component 22 of the dust collection device 20 outputs a drying airflow to the drying chamber 2191 to dry the cleaning component 40. This embodiment's dust collection device 20 can dry the cleaning component 40 of the cleaning device, keeping it as dry as possible to prevent bacterial growth.

[0068] In one embodiment, the heat dissipation outlet 2228 of the cover 222 is connected to the drying chamber 2191. Under the suction action of the fan 221, the gas outside the cover 222 enters the accommodating chamber 2221 from the first heat dissipation inlet 2227 to dissipate heat from the fan 221, and then is discharged to the drying chamber 2191 through the heat dissipation outlet 2228 to dry the cleaning part 40. Since the gas after dissipating heat from the fan 221 has a high temperature, the drying airflow in this embodiment is the gas after dissipating heat from the fan 221. The heat generated by the operation of the fan 221 is used to dry the cleaning part 40, avoiding the need for an additional heating module, which helps to reduce the manufacturing cost of the dust collection device 20 and simplify its structure.

[0069] Of course, in other embodiments of this application, the negative pressure component 22 may also be provided with an additional heating module. The heating module generates heat itself, and the fan 221 guides the airflow through the heating module. The heating module heats the airflow to form a drying airflow. This is not limited here.

[0070] In one embodiment, the main body 21 of the device has a first air vent 2192. A heat dissipation outlet 2228 communicates with a drying chamber 2191 through the first air vent 2192. Gas discharged from the heat dissipation outlet 2228 enters the drying chamber 2191 through the first air vent 2192. Specifically, the main body 21 also includes an air vent grid, which is mounted on a support 213 of the main body 21. Multiple first air vents 2192 are located within the air vent grid, and each first air vent 2192 is distributed at intervals within the air vent grid.

[0071] The main body 21 of the device also has an opening 2193, through which the drying chamber 2191 communicates with the outside of the main body 21. The dust collection device 20 also includes a door 25, which is connected to the main body 21 and is used to close the opening 2193. When the user needs to dry the cleaning part 40, the user opens the door 25 to open the opening 2193, and the cleaning part 40 is placed in the drying chamber 2191 through the opening 2193. Then the user closes the door 25 to close the opening 2193. A second air vent 251 is provided on the door 25, through which the gas in the drying chamber 2191 is discharged to the outside of the main body 21. The gas discharged from the heat dissipation outlet 2228 enters the drying chamber 2191 through the first air vent 2192, and then is discharged to the outside of the main body 21 through the second air vent 251.

[0072] Optionally, the door 25 is rotatably connected to the device body 21. The user can open or close the opening 2193 by rotating the door 25. The opening 2193 is located on the body 212 of the device body 21, and the drying chamber 2191 is located on the support 213 of the device body 21. The opening 2193 exposes the drying chamber 2191, allowing the cleaning component 40 to be placed in the drying chamber 2191 for drying. The door 25 is rotatably connected to the support 213 via a pivot. The door 25 has multiple second air vents 251, which are spaced apart from each other.

[0073] Of course, in other embodiments of this application, the door 25 can also be detachably connected to the device body 21 as a whole. When the door 25 is completely removed from the device body 21, the door 25 opens the opening 2193, and when the door 25 is completely installed on the device body 21, the door 25 closes the opening 2193. This is not limited here.

[0074] The technical solutions provided in the embodiments of this application will be described below in conjunction with specific application scenarios.

[0075] Application Scenario 1:

[0076] The cleaning system includes a cleaning device and a base station 10. The cleaning device is a cleaning robot. The cleaning system also includes a dust collection device 20. The dust collection device 20 is externally connected to the base station 10. The dust collection device 20 includes a negative pressure component 22 and a dust collection component 23. The negative pressure component 22 includes a fan 221 and a housing 222. The dust collection component 23 includes a dust collection bin 231 and a dust collection pipe 232. The housing 222 has a receiving cavity 2221 and an air intake channel 2222 and an air exhaust channel 2223 communicating with the receiving cavity 2221. The fan 221 is housed in the receiving cavity 2221. The fan 221 is connected to the dust collection bin 231 through the air intake channel 2222, and the fan 221 is connected to the outside of the housing 222 through the air exhaust channel 2223. The dust collection pipe 232 is connected to the dust collection bin 231 and is also used to connect to the base station 10. The fan 221 draws air from the dust collection bin 231 through the suction channel 2222 and discharges it to the outside of the cover 222 through the exhaust channel 2223, thereby creating a negative pressure environment in the dust collection bin 231. This allows the dust collection pipe 232 to collect dirt from the cleaning device back into the dust collection bin 231 through the base station 10. In this application scenario, the dust collection device 20 is external to the base station 10, meaning it is located outside the base station 10 rather than integrated inside. This allows the dust collection device 20 to be designed with a larger volume to collect dirt, without being limited by the internal space of the base station 10. Users no longer need to maintain the dust collection device 20 frequently (e.g., cleaning the dirt inside the dust collection device 20), thus reducing the user's maintenance frequency and burden. Furthermore, because the dust collection device 20 adopts a modular design, it is independent of the base station 10, and users can choose whether to equip it according to their actual needs.

[0077] The cover 222 also has a first heat dissipation air inlet 2227 and a heat dissipation air outlet 2228. The first heat dissipation air inlet 2227 communicates with the receiving cavity 2221, and the heat dissipation air outlet 2228 communicates with the receiving cavity 2221. The first heat dissipation air inlet 2227 is located at the bottom of the cover 222, and the heat dissipation air outlet 2228 is located on the side wall of the cover 222. The outer side wall of the fan 221 and the inner side wall of the cover 222 are spaced apart to form a first heat dissipation channel 226. The bracket 213 has an assembly cavity 217, and the inner wall of the assembly cavity 217 is provided with a first baffle 2181 and a second baffle 2182. When the cover 222 is assembled into the assembly cavity 217, the cover 222, the bracket 213, the first baffle 2181, and the second baffle 2182 cooperate to form a second heat dissipation channel 228. The dust collection device 20 has an air vent grid installed on its support 213, which has several first air vents 2192. The support 213 has a drying chamber 2191, and the main body 212 has an opening 2193 that exposes the drying chamber 2191. The support 213 is rotatably connected to a door 25, which is used to close the opening 2193. The door 25 has a second air vent 251. Under the suction of the fan 221, the gas outside the cover 222 enters the accommodating cavity 2221 through the first heat dissipation air inlet 2227 to dissipate heat from the fan 221, and then passes through the first heat dissipation channel 226 and is discharged to the second heat dissipation channel 228 through the heat dissipation air outlet 2228. Since the gas cooled by the fan 221 has a high temperature, the drying airflow discharged from the second heat dissipation channel 228 enters the drying chamber 2191 through the first air vent 2192 to dry the cleaning part 40, keeping it as dry as possible to prevent bacterial growth. The gas in the drying chamber 2191 is discharged to the outside of the dust collection device 20 through the second air vent 251.

[0078] Application Scenario 2:

[0079] The dust collection device 20 is externally connected to the base station 10 of the cleaning device, which may be a cleaning robot. The dust collection device 20 includes a negative pressure component 22 and a dust collection component 23. The negative pressure component 22 includes a fan 221 and a housing 222. The dust collection component 23 includes a dust collection bin 231 and a dust collection pipe 232. The housing 222 has a receiving cavity 2221 and an air intake channel 2222 and an exhaust channel 2223 communicating with the receiving cavity 2221. The fan 221 is housed in the receiving cavity 2221. The fan 221 is connected to the dust collection bin 231 through the air intake channel 2222, and the fan 221 is connected to the outside of the housing 222 through the exhaust channel 2223. The dust collection pipe 232 is connected to the dust collection bin 231 and is also used to connect to the base station 10. The fan 221 draws air from the dust collection bin 231 through the suction channel 2222 and discharges it to the outside of the cover 222 through the exhaust channel 2223, thereby creating a negative pressure environment in the dust collection bin 231. This allows the dust collection pipe 232 to collect dirt from the cleaning device back into the dust collection bin 231 through the base station 10. In this application scenario, the dust collection device 20 is external to the base station 10, meaning it is located outside the base station 10 rather than integrated inside. This allows the dust collection device 20 to be designed with a larger volume to collect dirt, without being limited by the internal space of the base station 10. Users no longer need to maintain the dust collection device 20 frequently (e.g., cleaning the dirt inside the dust collection device 20), thus reducing the user's maintenance frequency and burden. Furthermore, because the dust collection device 20 adopts a modular design, it is independent of the base station 10, and users can choose whether to equip it according to their actual needs.

[0080] The cover 222 also has a first heat dissipation air inlet 2227 and a heat dissipation air outlet 2228. The first heat dissipation air inlet 2227 communicates with the receiving cavity 2221, and the heat dissipation air outlet 2228 communicates with the receiving cavity 2221. The first heat dissipation air inlet 2227 is located at the bottom of the cover 222, and the heat dissipation air outlet 2228 is located on the side wall of the cover 222. The outer side wall of the fan 221 and the inner side wall of the cover 222 are spaced apart to form a first heat dissipation channel 226. The bracket 213 has an assembly cavity 217, and the inner wall of the assembly cavity 217 is provided with a first baffle 2181 and a second baffle 2182. When the cover 222 is assembled into the assembly cavity 217, the cover 222, the bracket 213, the first baffle 2181, and the second baffle 2182 cooperate to form a second heat dissipation channel 228. The dust collection device 20 has an air vent grid installed on its support 213, which has several first air vents 2192. The support 213 has a drying chamber 2191, and the main body 212 has an opening 2193 that exposes the drying chamber 2191. The support 213 is rotatably connected to a door 25, which is used to close the opening 2193. The door 25 has a second air vent 251. Under the suction of the fan 221, the gas outside the cover 222 enters the accommodating cavity 2221 through the first heat dissipation air inlet 2227 to dissipate heat from the fan 221, and then passes through the first heat dissipation channel 226 and is discharged to the second heat dissipation channel 228 through the heat dissipation air outlet 2228. Since the gas cooled by the fan 221 has a high temperature, the drying airflow discharged from the second heat dissipation channel 228 enters the drying chamber 2191 through the first air vent 2192 to dry the cleaning part 40, keeping it as dry as possible to prevent bacterial growth. The gas in the drying chamber 2191 is discharged to the outside of the dust collection device 20 through the second air vent 251.

[0081] The cleaning system and dust collection device provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A cleaning system, characterized by include: A cleaning device, comprising cleaning components; Base station; as well as A dust collection device is externally connected to the base station, and the dust collection device collects dirt from the cleaning device through the base station; The dust collection device includes: The main body of the device has a drying chamber for accommodating the cleaning component; and A negative pressure component is disposed in the main body of the device. The negative pressure component is used to output a drying airflow to the drying chamber to dry the cleaning component. The drying airflow is the gas after the fan in the negative pressure component has been cooled.

2. The cleaning system according to claim 1, characterized in that, The negative pressure component includes: Fans; and The cover has a receiving cavity and a first heat dissipation air inlet and a heat dissipation air outlet communicating with the receiving cavity. The fan is housed in the receiving cavity, and the heat dissipation air outlet is also communicating with the drying cavity. Under the suction action of the fan, the gas outside the cover enters the receiving cavity from the first heat dissipation air inlet to dissipate heat from the fan, and then is discharged to the drying cavity through the heat dissipation air outlet to dry the cleaning parts.

3. The cleaning system according to claim 2, characterized in that, The main body of the device has a first air inlet and an opening. The heat dissipation air outlet is connected to the drying chamber through the first air inlet. The gas discharged from the heat dissipation air outlet enters the drying chamber through the first air inlet. The drying chamber is connected to the outside of the main body of the device through the opening. The dust collection device also includes: The door is connected to the main body of the device. The door is used to close the opening, and a second air vent is provided on the door. The gas in the drying chamber is discharged to the outside of the main body of the device through the second air vent.

4. The cleaning system according to claim 3, characterized in that, The main body of the device includes: Base; The body, which mates with the base to form a mounting cavity, has an opening in the body; and A bracket is installed in the mounting cavity, the drying cavity is located in the bracket, and the door is rotatably connected to the bracket.

5. The cleaning system according to claim 2, characterized in that, The first heat dissipation air inlet is located at the bottom of the cover, and the heat dissipation air outlet is located on the side wall of the cover. The outer side wall of the fan and the inner side wall of the cover are spaced apart to form a first heat dissipation flow channel. The gas entering from the first heat dissipation air inlet passes through the first heat dissipation flow channel and is discharged through the heat dissipation air outlet.

6. The cleaning system according to claim 5, characterized in that, The main body of the device includes: Base; The main body is connected to the base to form a mounting cavity, and the main body has a second heat dissipation air inlet that communicates with the outside of the mounting cavity; A bracket is installed in the mounting cavity, and the cover is disposed on the bracket; and A heat dissipation sealing cover is connected to the bracket and is located on the bottom side of the cover. The heat dissipation sealing cover and the bracket cooperate to form a heat dissipation air intake channel and separate the heat dissipation air intake channel from the rest of the mounting cavity. The heat dissipation air intake channel is connected to the first heat dissipation air intake and the second heat dissipation air intake respectively.

7. The cleaning system according to claim 5, characterized in that, The main body of the device has an assembly cavity for assembling the cover. The inner wall of the assembly cavity is provided with a first baffle and a second baffle. The first baffle and the second baffle are spaced apart from each other along the circumference of the cover. When the cover is assembled in the assembly cavity, the cover, the main body of the device, the first baffle and the second baffle cooperate to form a second heat dissipation channel. The second heat dissipation channel and the heat dissipation outlet are located on the same side of the first baffle and the second baffle.

8. The cleaning system according to claim 7, characterized in that, The number of the first baffle ribs is at least two, and each of the first baffle ribs is distributed sequentially at intervals along the circumference of the cover. The outer side wall of the cover is provided with a first rib, and the first rib is embedded in the gap between adjacent first baffle ribs. The number of the second baffle is at least two, and each second baffle is distributed sequentially at intervals along the circumference of the cover. The outer side wall of the cover is also provided with a second rib, which is embedded in the gap between adjacent second baffles.

9. The cleaning system according to claim 7, characterized in that, The dust collection device also includes: A first heat dissipation seal is located near the top of the second heat dissipation channel, and the first heat dissipation seal is sandwiched between the cover and the main body of the device; and The second heat dissipation seal is located near the bottom of the second heat dissipation channel, and the second heat dissipation seal is sandwiched between the cover and the main body of the device.

10. The cleaning system according to claim 2, characterized in that, The dust collection device also includes: A dust collection component is disposed on the main body of the device and connected to the base station; The hood also has an air intake channel and an air exhaust channel communicating with the accommodating cavity. The fan is connected to the dust collection assembly through the air intake channel and is connected to the outside of the hood through the air exhaust channel. The fan draws gas from the dust collection assembly through the air intake channel and discharges it to the outside of the hood through the air exhaust channel, thereby creating a negative pressure environment in the dust collection assembly so that the dust collection assembly can collect dirt from the cleaning device through the base station.

11. The cleaning system according to claim 10, characterized in that, The base station includes: Base station main body; and A dust collection component is disposed on the base station body, and the dust collection component is used to connect with the dust collection assembly; The dust collection component has a dust collection channel inside, and a dust collection port communicating with the dust collection channel is opened on the top of the dust collection component. The dust collection port is used to dock with the dust box of the cleaning device when the cleaning device returns to the base station. The dirt in the dust box is collected into the dust collection component in sequence through the dust collection port and the dust collection channel.

12. The cleaning system according to claim 10, characterized in that, The cover is also provided with an air intake that communicates with the accommodating cavity; The negative pressure component also includes: An air intake seal surrounds the air intake channel and includes a first sealing portion, a second sealing portion, and a connecting portion. The connecting portion passes through the air intake port. The first sealing portion is connected to the end of the connecting portion near the fan and is sandwiched between the cover and the fan to form a seal. The second sealing portion... The end of the connection portion located away from the fan; and The suction pipe is connected to the dust collection assembly, and the suction pipe also abuts against the second sealing part to form a seal. The fan draws gas from the dust collection assembly through the suction pipe.

13. The cleaning system according to claim 10, characterized in that, The negative pressure component also includes: A silencer is connected to the cover, and the gas discharged from the exhaust duct is discharged to the outside of the negative pressure component after passing through the silencer.

14. The cleaning system according to claim 13, characterized in that, The silencer is located at the bottom of the enclosure; The exhaust duct includes a first sub-duct and a second sub-duct connected to each other. The first sub-duct surrounds the outer periphery of the accommodating cavity, and the second sub-duct extends toward the silencer to connect to the silencer. The gas drawn in by the fan is discharged to the silencer through the first sub-duct and the second sub-duct in sequence.

15. The cleaning system according to claim 14, characterized in that, The cover includes: The cover of the enclosure; and The lower cover of the cover is connected to the upper cover of the cover to form the accommodating cavity and the first sub-channel, and the second sub-channel is located in the lower cover of the cover; The negative pressure component also includes: A first exhaust seal is sandwiched between the fan and the lower cover of the enclosure, and the first exhaust seal is located on the side of the first sub-channel closer to the receiving cavity; and The second exhaust seal is sandwiched between the upper cover and the lower cover of the cover, and the second exhaust seal is located on the side of the first sub-channel away from the receiving cavity. The first exhaust seal and the second exhaust seal cooperate to seal the first sub-channel.

16. A dust collecting apparatus characterized by comprising: The dust collection device is used as a base station externally connected to the cleaning device, the cleaning device having a cleaning component, and the dust collection device includes: The main body of the device has a drying chamber for accommodating the cleaning component; and A negative pressure component is disposed in the main body of the device. The negative pressure component is used to output a drying airflow to the drying chamber to dry the cleaning component. The drying airflow is the gas after the fan in the negative pressure component has been cooled.

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