Robotic vacuum cleaner system

Abstract

The application provides a sweeping robot system, comprising: a shell, a bottom surface of the shell being provided with a dust suction port and a cleaning cloth; a cleaning module, comprising a first cleaning assembly and a second cleaning assembly, wherein the first cleaning assembly is arranged in the shell and comprises: a dust suction fan, a dust suction air duct connected between the dust suction port and an air inlet of the dust suction fan, and an air outlet air duct connected between an air outlet of the dust suction fan and a surface of the shell; and the second cleaning assembly is arranged in the shell and comprises: a mopping motor for driving the cleaning cloth to rotate to mop the ground; and a heat dissipation sheet metal, one end of the heat dissipation sheet metal being attached to an outer surface of the mopping motor, and the other end of the heat dissipation sheet metal extending into the dust suction air duct to form a heat dissipation channel for dissipating heat of the mopping motor to outside of the shell; wherein the cleaning module operates as follows: the dust suction fan operates to form an air flow from the dust suction port to the air outlet air duct to suck dust on the ground through the dust suction port; and / or the mopping motor operates to drive the cleaning cloth to rotate to mop the ground.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sweeping robots, in particular to a sweeping robot system. BACKGROUND

[0002] Two schemes are usually adopted for heat dissipation of sweeping robots on the market.

[0003] The first scheme is passive heat dissipation, a metal part is arranged near the heat source, the heat source is conducted to the outer surface of the sweeping robot through the metal part, and then the heat is dissipated by relying on the environment. This scheme increases the material and assembly cost, and also increases the weight of the whole machine.

[0004] The second scheme is active heat dissipation, which relies on the dust suction fan inside the main machine, blows air to the heat source through the air outlet cavity of the dust suction fan, and accelerates the heat dissipation of the heat source. In this scheme, the air blown by the dust suction fan will have moisture and dust, the moisture will make the space inside the whole machine humid, causing the motor to rust and other abnormalities, and will also cause the short circuit risk of the main machine control panel. Dust will make the inside of the machine dirty, and will also cause short circuit of the control panel and motor. SUMMARY

[0005] In order to solve the above technical problems, the present application provides a sweeping robot system, which guides the heat in the second cleaning assembly to the dust suction air duct of the first cleaning assembly through the heat dissipation sheet metal, so as to conduct the heat to the outside of the shell of the sweeping robot by the air outlet air duct of the first cleaning assembly, thereby achieving the purpose of heat dissipation by using the existing dust suction fan inside the sweeping robot, and avoiding the direct blowing of the dust suction fan to the heat source.

[0006] In one embodiment of the present application, a sweeping robot system is provided, comprising:

[0007] A shell, the bottom surface of the shell has a dust suction port for a first cleaning assembly and a cleaning cloth for a second cleaning assembly;

[0008] A cleaning module, the cleaning module includes a first cleaning assembly and a second cleaning assembly, wherein the first cleaning assembly is arranged in the shell and includes a dust suction fan, a dust suction air duct connected between the dust suction port and the air inlet of the dust suction fan, and an air outlet air duct connected between the air outlet of the dust suction fan and the surface of the shell; the second cleaning assembly is arranged in the shell and includes a mopping motor for driving the cleaning cloth to rotate to mop the ground;

[0009] A heat dissipation sheet metal, one end of the heat dissipation sheet metal is attached to the outer surface of the mopping motor, and the other end extends into the dust suction air duct to conduct and dissipate the heat of the mopping motor;

[0010] The cleaning module operates as follows: the vacuum fan operates to generate an airflow from the suction port to the air outlet duct, thereby sucking up dust from the ground via the suction port; and / or

[0011] The mopping motor operates to drive the cleaning cloth to rotate and mop the floor.

[0012] In one embodiment, the first cleaning component includes:

[0013] Dust collection bag, the dust collection bag being located between the suction duct and the suction port; and

[0014] A filter is installed at the connection between the dust collection bag and the dust suction duct;

[0015] The first cleaning component operates as follows: the vacuum fan operates to form an airflow from the vacuum port to the air outlet duct, so as to suck up the ground dust through the vacuum port, the ground dust is retained in the dust collection bag, the airflow that removes the ground dust passes through the heat dissipation sheet metal, and the heat of the heat dissipation sheet metal is dissipated to the outside of the housing through the air outlet duct.

[0016] In one embodiment, the dust extraction duct extends horizontally, and the air inlet of the dust extraction fan is connected to the top of the dust extraction duct;

[0017] The rotating shaft of the vacuum cleaner forms an acute angle with the vertical direction.

[0018] In one embodiment, it includes:

[0019] A temperature sensor that detects the temperature of the heat dissipation sheet metal and has a temperature threshold.

[0020] The cleaning module operates as follows: the mopping motor operates to drive the cleaning cloth to rotate and mop the floor; and

[0021] The vacuum cleaner operates in response to a warning signal from the temperature sensor indicating that the temperature is above the threshold, thereby generating an airflow from the suction port to the exhaust duct, dissipating the heat from the heat dissipation sheet metal to the outside of the housing via the exhaust duct.

[0022] In one embodiment, the cleaning module operates such that the mopping motor operates to drive the cleaning cloth to rotate and mop the floor; and

[0023] The vacuum fan operates at a first power less than the maximum power to form an airflow from the vacuum port to the air outlet duct, dissipating the heat of the heat dissipation sheet metal to the outside of the housing via the air outlet duct.

[0024] In one embodiment, the first power is less than or equal to half of the maximum power.

[0025] In one embodiment, the second rotation axis of the mopping motor extends horizontally, and the output shaft of the mopping motor extends from both ends of the mopping motor;

[0026] The second cleaning component includes:

[0027] A pair of gearboxes are respectively disposed at both ends of the mopping motor and respectively connected to the output shaft of the mopping motor. The cleaning cloth rotates under the drive of the gearboxes.

[0028] In one embodiment, the mopping motor and the vacuum cleaner fan are located in the same plane in the horizontal direction.

[0029] In one embodiment, the heat dissipation sheet metal includes:

[0030] A winding portion that wraps around the outer periphery of the mopping motor to absorb the heat of the mopping motor;

[0031] A horizontal section, the first end of which is connected to the winding section and extends horizontally along the dust extraction duct;

[0032] A fixing part is connected to the second end of the horizontal part for fixed connection with the dust extraction duct.

[0033] In one embodiment, the heat dissipation sheet metal includes:

[0034] A first inclined portion is connected between the winding portion and the horizontal portion, and the first inclined portion forms a downward angle so that the horizontal portion extends below the vacuum cleaner.

[0035] In one embodiment, the winding portion covers at least half of the outer peripheral surface area of ​​the mopping motor.

[0036] In one embodiment, the air outlet duct is located above one of the gearboxes.

[0037] In one embodiment, the air outlet of the vacuum cleaner is located at the periphery of the vacuum cleaner;

[0038] The rotating shaft of the vacuum cleaner forms an acute angle with the vertical direction, and the air outlet duct is connected to the periphery of the high end of the vacuum cleaner.

[0039] As can be seen from the above technical solution, in this embodiment, the vacuum cleaner fan in the first cleaning component is used as a motor to provide cooling airflow to the mopping motor in the second cleaning component. However, the mopping motor is not located in the airflow channel of the vacuum cleaner fan, but rather avoids the vacuum cleaner fan to prevent the airflow of the vacuum cleaner fan from blowing directly towards the mopping motor. Moreover, the airflow generated by the vacuum cleaner fan is entirely within a closed channel inside the housing. Thus, even if the cooling airflow generated by the vacuum cleaner fan carries dust and moisture, it will not cause pollution or corrosion to other components inside the housing due to the closed and isolated channel inside the housing.

[0040] Since the mopping motor needs to avoid the airflow channel of the vacuum cleaner fan, a heat dissipation sheet metal is provided in this embodiment to utilize the suction airflow generated by the vacuum cleaner fan for heat dissipation of the mopping motor. This sheet metal is made of a material that is a good conductor of heat and is connected between the airflow channel of the mopping motor and the vacuum cleaner fan. This transfers the heat of the mopping motor from outside the airflow channel of the vacuum cleaner fan to inside the airflow channel. In this way, the suction airflow generated by the vacuum cleaner fan directly delivers the heat generated by the mopping motor to the outside of the housing, thereby achieving a good heat dissipation effect.

[0041] In this embodiment, the second cleaning component serves as the primary heat source. However, no additional heat dissipation components, particularly a motor, are added inside the second cleaning component. Instead, the vacuum cleaner fan in the first cleaning component provides heat dissipation for the second cleaning component. The first and second cleaning components are isolated from each other, and the airflow channel of the first cleaning component is isolated from other components inside the housing through a closed structure. The first and second cleaning components are connected by a heat-dissipating sheet metal to achieve a shared heat dissipation effect. In this embodiment, the robotic vacuum cleaner system achieves a heat dissipation solution for the second cleaning component by adding only one heat-dissipating sheet metal. At the same time, the reuse of the vacuum cleaner fan in the first cleaning component reduces the material and assembly costs required for product modification and upgrades. Furthermore, the heat-dissipating sheet metal can be implemented as a thin sheet structure and can be set along the internal structural components of the housing without changing the internal layout and overall structure of the robotic vacuum cleaner system, nor significantly increasing the overall weight. Attached Figure Description

[0042] The following figures are for illustrative purposes only and do not limit the scope of the invention.

[0043] Figure 1 This is a side cross-sectional view of the sweeping robot system of the present invention.

[0044] Figure 2 This is a schematic diagram of the bottom structure of the sweeping robot system of the present invention.

[0045] Figure 3 This is a schematic diagram of the internal structure of the sweeping robot system of the present invention.

[0046] Figure 4 This is a schematic diagram of the structure of the second cleaning component in this invention.

[0047] Figure 5 This is a schematic diagram of the heat dissipation sheet metal structure in this invention.

[0048] Figure 6 This is a schematic diagram of the structure of the first cleaning component in this invention. Detailed Implementation

[0049] To provide a clearer understanding of the technical features, objectives, and effects of the invention, specific embodiments of the invention are now described with reference to the accompanying drawings, in which the same reference numerals denote the same parts.

[0050] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0051] To keep the drawings concise, only the parts relevant to the invention are shown in each figure, and do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of the components with the same structure or function is shown schematically, or only one is labeled.

[0052] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0053] In this article, "first," "second," etc., are used only to distinguish one another, and not to indicate degree of importance, order, or prerequisite for each other.

[0054] In this document, terms such as "equal" and "same" are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use. Unless otherwise stated, numerical ranges in this document include not only the entire range within its two endpoints, but also several subranges contained therein.

[0055] The exemplary embodiments will now be described more fully with reference to the accompanying drawings.

[0056] To address the problems in the prior art, the present invention provides a sweeping robot system that guides the heat from the second cleaning component to the suction duct of the first cleaning component via a heat dissipation sheet metal, so as to conduct the heat to the outside of the sweeping robot's shell using the air outlet duct of the first cleaning component, thereby achieving the purpose of heat dissipation using the existing suction fan inside the sweeping robot, and avoiding the direct blowing of the suction fan to the heat source.

[0057] like Figures 1 to 6 As shown, one embodiment of the present invention provides a robotic vacuum cleaner system, comprising:

[0058] The housing 10 has a suction port 11 for a first cleaning component and a cleaning cloth 12 for a second cleaning component on its bottom surface.

[0059] The cleaning module includes a first cleaning component and a second cleaning component. The first cleaning component is disposed within the housing 10 and includes: a vacuum blower 21, a vacuum duct 22 connecting the vacuum port 11 and the air inlet of the vacuum blower 21, and an air outlet duct 23 connecting the air outlet of the vacuum blower 21 and the surface of the housing 10. The second cleaning component is disposed within the housing 10 and includes: a mopping motor 31 for driving the cleaning cloth 12 to rotate to mop the floor.

[0060] Heat dissipation sheet metal 40, one end of which is attached to the outer surface of the mopping motor 31, and the other end extends into the suction duct 22 to conduct and dissipate the heat of the mopping motor 31 to the suction duct 22.

[0061] The cleaning module operates as follows: the vacuum fan 21 operates to create an airflow from the suction port 21 to the air outlet duct 23, thereby sucking up dust from the ground via the suction port 11; and / or

[0062] The mopping motor 31 operates to drive the cleaning cloth 12 to rotate and mop the floor.

[0063] In this embodiment of the robotic vacuum cleaner system, there are two cleaning components. The first cleaning component includes a vacuum cleaner fan, specifically for sweeping; the second cleaning component includes a mopping motor and a cleaning cloth, specifically for mopping. When the vacuum cleaner fan is started, it creates negative pressure in the vacuum duct to suck up dust from the ground through the suction port on the bottom surface of the housing 10, and retains the dust in the dust collection device inside the housing. The airflow generated by the vacuum cleaner fan is discharged outside the housing through the exhaust duct to form a circulating airflow for dust collection. When the mopping motor is started, it drives the mop disc through the output shaft to rotate the cleaning cloth in the horizontal plane, thereby rotating the mop brush to wipe the floor.

[0064] The operation of the first cleaning component corresponds to the sweeping mode of the robot vacuum system, the operation of the second cleaning component corresponds to the mopping mode of the robot vacuum, and the simultaneous operation of the first and second cleaning components corresponds to the sweeping and mopping mode of the robot vacuum.

[0065] In a robotic vacuum cleaner system, the mop disc rotates the cleaning cloth on the floor, and the pressure exerted by the mop disc on the floor results in a relatively high current draw from the mopping motor, making it the primary heat source in the system. To dissipate heat from the mopping motor, either active or passive cooling methods can be used. Passive cooling requires adding a heatsink to the system and has lower efficiency, failing to meet the cooling needs of the high-power mopping motor. Active cooling, on the other hand, requires the motor to generate airflow for cooling, typically necessitating the use of the existing vacuum cleaner fan to provide airflow for the mopping motor. However, the airflow generated by the vacuum cleaner fan often carries dust and moisture, potentially causing corrosion or contamination within the robotic vacuum cleaner system. Furthermore, the vacuum cleaner fan and mopping motor are separate cleaning components; when operating in mopping mode, the vacuum cleaner fan needs to be activated separately.

[0066] In this embodiment, the vacuum cleaner fan in the first cleaning component is used as a motor to provide cooling airflow to the mopping motor in the second cleaning component. However, the mopping motor is not located in the airflow channel of the vacuum cleaner fan, but is positioned away from the vacuum cleaner fan to prevent the airflow from the vacuum cleaner fan from blowing directly onto the mopping motor. Furthermore, the airflow generated by the vacuum cleaner fan is entirely within a closed channel inside the housing. Thus, even if the cooling airflow generated by the vacuum cleaner fan carries dust and moisture, it will not cause pollution or corrosion to other components inside the housing due to the closed and isolated channel inside the housing.

[0067] Since the mopping motor needs to avoid the airflow channel of the vacuum cleaner fan, a heat dissipation sheet metal is provided in this embodiment to utilize the suction airflow generated by the vacuum cleaner fan for heat dissipation of the mopping motor. This sheet metal is made of a material that is a good conductor of heat and is connected between the airflow channel of the mopping motor and the vacuum cleaner fan. This transfers the heat of the mopping motor from outside the airflow channel of the vacuum cleaner fan to inside the airflow channel. In this way, the suction airflow generated by the vacuum cleaner fan directly delivers the heat generated by the mopping motor to the outside of the housing, thereby achieving a good heat dissipation effect.

[0068] In this embodiment, the second cleaning component serves as the primary heat source. However, no additional heat dissipation components, particularly a motor, are added inside the second cleaning component. Instead, the vacuum cleaner fan in the first cleaning component provides heat dissipation for the second cleaning component. The first and second cleaning components are isolated from each other, and the airflow channel of the first cleaning component is isolated from other components inside the housing through a closed structure. The first and second cleaning components are connected by a heat-dissipating sheet metal to achieve a shared heat dissipation effect. In this embodiment, the robotic vacuum cleaner system achieves a heat dissipation solution for the second cleaning component by adding only one heat-dissipating sheet metal. At the same time, the reuse of the vacuum cleaner fan in the first cleaning component reduces the material and assembly costs required for product modification and upgrades. Furthermore, the heat-dissipating sheet metal can be implemented as a thin sheet structure and can be set along the internal structural components of the housing without changing the internal layout and overall structure of the robotic vacuum cleaner system, nor significantly increasing the overall weight.

[0069] The first cleaning component includes:

[0070] Dust bag 24 is located between suction duct 22 and suction port 11; and

[0071] Filter 25 is installed at the connection between dust collection bag 24 and suction duct 22;

[0072] The first cleaning component operates as follows: the vacuum fan 21 operates to form an airflow from the suction port 21 to the air outlet duct 23, so as to suck up the ground dust through the suction port 11, the ground dust is retained in the dust collection bag 24, the airflow that removes the ground dust passes through the heat dissipation sheet metal 40, and the heat of the heat dissipation sheet metal 40 is dissipated to the outside of the housing 10 through the air outlet duct 23.

[0073] In this embodiment, the airflow channels of the vacuum cleaner fan include an upstream channel and a downstream channel. Specifically, the upstream channel starts from the suction port 11 and sequentially includes a dust collection bag 24, a filter 25, and a suction duct 22. The downstream channel starts from the air outlet of the vacuum cleaner fan 21, includes an air outlet duct 23, and ends at an outlet formed on the surface of the housing 10. The outlet can be located on the side wall or the bottom surface of the housing 10.

[0074] The heat dissipation end of the heat dissipation sheet 40 can extend into the channel upstream of the vacuum cleaner fan to provide higher heat dissipation power. Optionally, the heat dissipation end of the heat dissipation sheet 40 is located inside the vacuum duct 22, that is, downstream of the dust collection bag 24. In this case, the dust sucked in from the suction port 11 is retained in the dust collection bag 24, thus significantly reducing the amount of dust contained in the airflow passing through the heat dissipation sheet 40, thereby reducing the probability of corrosion and contamination of the heat dissipation sheet 40. For the same reason, the heat dissipation end of the heat dissipation sheet 40 is also located downstream of the filter 25. Typically, the filter 25 can be a filter paper located at the outlet of the dust collection bag 24.

[0075] like Figure 1 As shown, the dust extraction duct 22 extends horizontally, and the air inlet of the dust extraction fan 21 is connected to the top of the dust extraction duct 22; wherein, the rotation axis of the dust extraction fan 21 forms an acute angle with the vertical direction.

[0076] The vacuum cleaner fan 21 is inclined inside the housing 10 to form an angle with the airflow direction in the vacuum duct 22, so that the vacuum duct 22 forms a space for heat dissipation, and the heat dissipation end of the heat dissipation sheet metal 40 can be separated from the vacuum cleaner fan 21 to a certain extent, so as to facilitate heat dissipation by airflow.

[0077] Optionally, within the dust extraction duct 22, the airflow can form a vortex above the heat dissipation sheet 40, thereby achieving sufficient heat exchange with the heat dissipation end of the heat dissipation sheet 40.

[0078] Based on the reuse state of the first cleaning module, the operating mode of the robotic vacuum cleaner system in this embodiment is changed accordingly. Specifically, when the first cleaning component is activated, i.e., when the robotic vacuum cleaner system is working in sweeping mode or sweeping and mopping mode, the second cleaning component is either not activated and does not need to consider heat dissipation, or it needs to consider heat dissipation, but the suction fan of the first cleaning component is always activated and can fully meet the heat dissipation requirements. Therefore, when the first cleaning component needs to be activated, its operating mode does not need to be changed.

[0079] When the robot vacuum system is working in mopping mode, it needs to provide heat dissipation for the second cleaning component, which means that the suction fan of the first cleaning component needs to be turned on.

[0080] This embodiment provides two specific implementation methods for starting the vacuum fan of the first cleaning component.

[0081] In one embodiment, the robotic vacuum cleaner system includes:

[0082] Temperature sensor, the temperature sensor detects the temperature of heat dissipation sheet metal 40, and has a temperature threshold;

[0083] The cleaning module operates as follows: the mopping motor 31 operates to drive the cleaning cloth 12 to rotate and mop the floor; and

[0084] The vacuum cleaner fan 21 operates in response to a warning signal from the temperature sensor that the temperature exceeds the threshold, so as to form an airflow from the suction port 21 to the air outlet duct 23, dissipating the heat of the heat dissipation sheet metal 40 to the outside of the housing 10 through the air outlet duct 23.

[0085] Heat will accumulate in the motor. When the temperature exceeds the software setting, the fan will start working, drawing outside air and dust into the dust collection box through the suction port. After being filtered by the filter paper in the dust box, the air flows through the air inlet cavity, carrying away the heat from the sheet metal inside the air inlet cavity. The hot air is then drawn into the volute and flows out of the machine through the air outlet. When the temperature of the sheet metal drops to the design temperature, the fan stops working. The fan will be restarted when the temperature rises again.

[0086] In another embodiment, the cleaning module operates as follows: the mopping motor 31 operates to drive the cleaning cloth 12 to rotate and mop the floor; and

[0087] The vacuum cleaner 21 operates at a first power less than the maximum power to form an airflow from the suction port 21 to the air outlet duct 23, dissipating the heat of the heat dissipation sheet metal 40 to the outside of the housing 10 through the air outlet duct 23.

[0088] The first power is less than or equal to half of the maximum power. For example, the first power could be 30% of the maximum power.

[0089] like Figure 1 and Figure 4 As shown, the second rotation axis of the mopping motor 31 extends horizontally, and the output shaft of the mopping motor 31 extends from both ends of the mopping motor 31.

[0090] The second cleaning component includes:

[0091] A pair of gearboxes 32 are respectively located at both ends of the mopping motor 31 and are respectively connected to the output shaft of the mopping motor 31. The cleaning cloth 12 rotates under the drive of the gearboxes 32.

[0092] The mopping motor 31 and the vacuum cleaner fan 21 are located in the same plane in the horizontal direction.

[0093] like Figure 5 As shown, the heat dissipation sheet metal 40 includes:

[0094] The winding part 41 wraps around the outer periphery of the mopping motor 31 to absorb the heat of the mopping motor 31.

[0095] The horizontal section 42 has its first end connected to the winding section 41 and extends horizontally along the dust extraction duct 22.

[0096] The fixing part 43 is connected to the second end of the horizontal part 42 for fixed connection with the dust suction duct 22.

[0097] The winding portion 41 covers at least half of the outer peripheral surface area of ​​the mopping motor 31 to fully absorb the heat emitted by the mopping motor 31.

[0098] Combination Figure 1 As shown, the heat dissipation sheet metal 40 includes:

[0099] The first inclined portion 44 is connected between the winding portion 41 and the horizontal portion 42. The first inclined portion 44 forms a downward angle so that the horizontal portion 42 extends below the vacuum blower 21.

[0100] The heat dissipation sheet metal 40 extends the horizontal part 42 below the vacuum cleaner fan 21 through the downward-sloping first inclined part, so as to achieve a good heat exchange effect between the heat dissipation sheet metal and the vacuum cleaner fan.

[0101] Furthermore, the air outlet duct 23 is located above a gearbox 32.

[0102] The air outlet of the vacuum cleaner 21 is located at the periphery of the vacuum cleaner 21;

[0103] The rotating shaft of the vacuum cleaner 21 forms an acute angle with the vertical direction, and the air outlet duct 23 is connected to the periphery of the high end of the vacuum cleaner 21.

[0104] In this embodiment, the vacuum cleaner fan 21 is installed at an angle, which means that the high and low ends of the vacuum cleaner fan are not located on the same horizontal plane. In this embodiment, the vacuum cleaner fan's air intake direction is along its central rotation axis, while the air outlet direction is tangentially outward along its periphery. Therefore, in this embodiment, the air outlet duct 23 is connected to the periphery of the high end of the vacuum cleaner fan to raise the height of the air outlet duct 23, thereby allowing it to be positioned above one of the gearboxes of the second cleaning component, achieving a compact layout inside the housing 10.

[0105] As can be seen from the above technical solution, in this embodiment, the vacuum cleaner fan in the first cleaning component is used as a motor to provide cooling airflow to the mopping motor in the second cleaning component. However, the mopping motor is not located in the airflow channel of the vacuum cleaner fan, but rather avoids the vacuum cleaner fan to prevent the airflow of the vacuum cleaner fan from blowing directly towards the mopping motor. Moreover, the airflow generated by the vacuum cleaner fan is entirely within a closed channel inside the housing. Thus, even if the cooling airflow generated by the vacuum cleaner fan carries dust and moisture, it will not cause pollution or corrosion to other components inside the housing due to the closed and isolated channel inside the housing.

[0106] Since the mopping motor needs to avoid the airflow channel of the vacuum cleaner fan, a heat dissipation sheet metal is provided in this embodiment to utilize the suction airflow generated by the vacuum cleaner fan for heat dissipation of the mopping motor. This sheet metal is made of a material that is a good conductor of heat and is connected between the airflow channel of the mopping motor and the vacuum cleaner fan. This transfers the heat of the mopping motor from outside the airflow channel of the vacuum cleaner fan to inside the airflow channel. In this way, the suction airflow generated by the vacuum cleaner fan directly delivers the heat generated by the mopping motor to the outside of the housing, thereby achieving a good heat dissipation effect.

[0107] In this embodiment, the second cleaning component serves as the primary heat source. However, no additional heat dissipation components, particularly a motor, are added inside the second cleaning component. Instead, the vacuum cleaner fan in the first cleaning component provides heat dissipation for the second cleaning component. The first and second cleaning components are isolated from each other, and the airflow channel of the first cleaning component is isolated from other components inside the housing through a closed structure. The first and second cleaning components are connected by a heat-dissipating sheet metal to achieve a shared heat dissipation effect. In this embodiment, the robotic vacuum cleaner system achieves a heat dissipation solution for the second cleaning component by adding only one heat-dissipating sheet metal. At the same time, the reuse of the vacuum cleaner fan in the first cleaning component reduces the material and assembly costs required for product modification and upgrades. Furthermore, the heat-dissipating sheet metal can be implemented as a thin sheet structure and can be set along the internal structural components of the housing without changing the internal layout and overall structure of the robotic vacuum cleaner system, nor significantly increasing the overall weight.

[0108] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementation schemes or modifications made without departing from the spirit of the present invention, such as combinations, divisions or repetitions of features, should be included within the scope of protection of the present invention.

Claims

1. A robotic floor sweeping system, comprising: Comprising: a housing (10) having a bottom surface with a suction port (11) for a first cleaning assembly and a cleaning cloth (12) for a second cleaning assembly; a cleaning module comprising the first cleaning assembly and the second cleaning assembly, wherein the first cleaning assembly is disposed in the housing (10) and comprises a suction fan (21), a suction air duct (22) connected between the suction port (11) and an air inlet of the suction fan (21), and an air outlet duct (23) connected between an air outlet of the suction fan (21) and a surface of the housing (10); and the second cleaning assembly is disposed in the housing (10) and comprises a mopping motor (31) for driving the cleaning cloth (12) to rotate to mop the ground; a heat dissipation sheet metal (40) having one end attached to an outer surface of the mopping motor (31) and the other end extending into the suction air duct (22) to conduct and dissipate heat of the mopping motor (31); wherein the cleaning module operates as follows: the suction fan (21) operates to form an air flow from the suction port (11) to the air outlet duct (23) to suck up dust on the ground through the suction port (11); and / or the mopping motor (31) operates to drive the cleaning cloth (12) to rotate to mop the ground; a temperature sensor for detecting a temperature of the heat dissipation sheet metal (40) and having a temperature threshold; the cleaning module operates as follows: the mopping motor (31) operates to drive the cleaning cloth (12) to rotate to mop the ground; and the suction fan (21) operates in response to a warning signal of the temperature sensor being higher than the temperature threshold to form an air flow from the suction port (11) to the air outlet duct (23) to dissipate heat of the heat dissipation sheet metal (40) to the outside of the housing (10) through the air outlet duct (23); the first cleaning assembly comprises: a dust collection bag (24) located between the suction air duct (22) and the suction port (11); and a filter (25) installed at a connection between the dust collection bag (24) and the suction air duct (22); the first cleaning assembly operates as follows: the suction fan (21) operates to form an air flow from the suction port (11) to the air outlet duct (23) to suck up dust on the ground through the suction port (11), the dust on the ground is collected in the dust collection bag (24), the air flow removing the dust on the ground passes through the heat dissipation sheet metal (40), and heat of the heat dissipation sheet metal (40) is dissipated to the outside of the housing (10) through the air outlet duct (23); a second rotation axis of the mopping motor (31) extends in a horizontal direction, and an output shaft of the mopping motor (31) extends from both ends of the mopping motor (31); the second cleaning assembly comprises: A pair of gearboxes (32) are respectively arranged at both ends of the mopping motor (31) to be connected to the output shafts of the mopping motor (31), and the cleaning cloth (12) is rotated under the driving of the gearboxes (32); The heat dissipation sheet metal (40) comprises: A winding part (41) wrapping the outer periphery of the mopping motor (31) to absorb the heat of the mopping motor (31); A horizontal part (42) having a first end connected to the winding part (41) and extending horizontally along the dust suction air duct (22); A fixing part (43) connected to a second end of the horizontal part (42) for fixed connection with the dust suction air duct (22).

2. The robotic vacuum system of claim 1, wherein, The dust suction air duct (22) extends horizontally, and the air inlet of the dust suction fan (21) is in communication with the top of the dust suction air duct (22); The rotating shaft of the dust suction fan (21) forms an acute angle with the vertical direction.

3. The robotic vacuum system of claim 1, wherein, The cleaning module operates as follows: the mopping motor (31) operates to drive the cleaning cloth (12) to rotate to mop the ground; And The dust suction fan (21) operates at a first power less than the maximum power to form an air flow from the dust suction port (11) to the air outlet duct (23), and the heat of the heat dissipation sheet metal (40) is dissipated to the outside of the shell (10) through the air outlet duct (23).

4. The robotic cleaning system of claim 3, wherein, The first power is less than or equal to half of the maximum power.

5. The robotic vacuum system of claim 1, wherein, The mopping motor (31) and the dust suction fan (21) are located in the same horizontal plane.

6. The robotic vacuum system of claim 1, wherein, The heat dissipation sheet metal (40) comprises: A first inclined part (44) connected between the winding part (41) and the horizontal part (42), the first inclined part (44) forms a downward angle, so that the horizontal part (42) extends below the dust suction fan (21).

7. The robotic vacuum system of claim 1, wherein, The winding part (41) covers at least half of the outer peripheral surface area of the mopping motor (31).

8. The robotic vacuum system of claim 5, wherein, The air outlet duct (23) is located above one of the gearboxes (32).

9. The robotic vacuum system of claim 8, wherein, The air outlet of the dust suction fan (21) is located at the circumference of the dust suction fan (21); The rotating shaft of the dust suction fan (21) forms an acute angle with the vertical direction, and the air outlet duct (23) is connected to the circumference of the high end of the dust suction fan (21).

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