111results about "Exhaust-air diffusion" patented technology

A motor assembly including a rotor rotatable about a rotating shaft; a stator formed as a continuous body and including multiple teeth areas, multiple body areas disposed outside of the multiple teeth areas and having a first width in a cross section of the stator in a direction perpendicular to a rotational axis of the rotating shaft, with the plurality of teeth areas extending from the plurality of body areas in a direction toward the rotating shaft, and multiple connection areas connecting multiple body areas; and a coil wound around each of the multiple teeth areas, wherein each of the multiple connection areas has a bending point having a second width in the cross section of greater than or equal to 0.05 and less than or equal to 0.25 of the first width, and is in contact with another connection area with reference to the bending point.

A surface cleaning apparatus includes a momentum separator, which includes an outer liquid collection chamber and an inner solid collection chamber that is positioned within the outer liquid collection chamber and separated from the outer liquid collection chamber by an inner chamber wall. At least a portion of the inner chamber wall is porous. The air flow path comprises an inlet conduit that extends from the dirty air inlet to the inner solid collection chamber, and a downstream air flow path extends from the inner solid collection chamber to a suction motor and the porous portion of the inner chamber wall connects the inner solid collection chamber in fluid communication with the downstream air flow path. Air travelling through the inlet conduit enters the inner solid collection chamber in a first flow direction and air exits the inner solid collection chamber is a second, different flow direction.

A motor assembly and a surface cleaning device are provided. The motor assembly includes: a housing, the housing including an air outlet and a water outlet; a motor body, arranged inside the housing and configured to provide working power; and a cyclone bracket, arranged between the motor body and the housing and configured to guide a working airflow. The cyclone bracket, the motor body and the housing are substantially coaxially arranged in such a manner that after being discharged from the motor body, the working airflow carrying water vapor is condensed into liquid on an inner side wall of the housing through the cyclone bracket and then the liquid is discharged from the water outlet, while the working airflow not condensed into the liquid is discharged from the air outlet.

An in and out flood restoration system and method of using the same is provided. The system may include a recovery tank with an internal storage volume to store a recovered flood liquid, one or more air openings, and one or more liquid openings. The recovery tank may be sealed or generally air tight. The system may include a suction / blower assembly, or a suction source and a blower source, to produce a suction (or negative) pressure and a blower (or positive) pressure at the one or more air openings. The system may include a suction hose and discharge hose to retrieve and dispose of the flood liquid to and from the one or more liquid openings of the recovery tank. The system may further include a stationary or rolling frame for use when the system is in an operation mode or a storage mode, and at least one sound suppressor.

A surface cleaning apparatus comprises a cyclone chamber. The cyclone chamber has a cyclone axis of rotation, a first end, an axially spaced apart second end, a cyclone chamber sidewall extending between the first end and the second end, a cyclone air inlet, a cyclone air outlet, and an openable portion wherein the cyclone axis of rotation intersects the first end and the second end. The openable portion is rotatably mounted about an opening axis that is parallel to the cyclone axis of rotation.

A cleaner includes: a main body housing having a suction port; a motor assembly that is housed in the main body housing and includes a fan motor that rotates about a rotation axis to generate a suction force at the suction port; and one or more first flow paths through which air discharged from the motor assembly flows. The one or more first flow paths are provided between the motor assembly and the main body housing in a radial direction of the rotation axis only in a part in a circumferential direction of the rotation axis and extend in a front-rear direction parallel to the rotation axis.

A motor assembly according to an embodiment includes a control board, a fan motor, an impeller configured to be rotated by the fan motor, a first guide that covers the impeller and guides sucked-in air in an axial direction of the impeller along an air flow path to be directed to the control board, and a second guide disposed between the first guide and the control board to cover the fan motor and guide air along the air flow path, and the second guide is located apart from the control board, and includes a nozzle portion having a gradient of a certain angle with respect to the axial direction at an end facing the control board.

The application provides a power device of a cleaning equipment and the cleaning equipment, and the power device of the cleaning equipment comprises: a first shell with an inner chamber with an open top and an outer chamber, the inner chamber is provided with an air inlet, and the outer chamber is provided with an air outlet channel; a second shell comprising a cylindrical part and a partition part fixed in the cylindrical part, one end of the cylindrical part is in butt joint with the opening at the top of the inner chamber, the partition part is provided with a plurality of pressure equalizing holes in annular distribution, and the partition part divides the space in the cylindrical part into a first pressure equalizing chamber and a second pressure equalizing chamber; a third shell is arranged above the second shell and is in butt joint with the opening at the top of the outer chamber, a sandwich chamber is formed between the third shell and the outer side of the cylindrical part; a fan assembly is partially located in the inner chamber and partially located in the second pressure equalizing chamber; and the air inlet is communicated with the air outlet channel through the inner chamber, the second pressure equalizing chamber, the first pressure equalizing chamber, the sandwich chamber and the outer chamber in sequence.

This invention discloses a motor assembly for a vacuum cleaner and a vacuum cleaner. The motor assembly for the vacuum cleaner includes a first cover and a second cover. The first cover contains a motor. The second cover is connected to and communicates with the first cover, and the second cover has an air outlet. A noise-absorbing structure is disposed within the second cover and located between the first cover and the air outlet. The motor assembly and vacuum cleaner according to embodiments of this invention have low overall noise, high sound quality, simple structure, low cost, and are easy to assemble.

A draught fan assembly comprises a draught fan cover body and a draught fan body located in the draught fan cover body, the draught fan cover body comprises a draught fan upper cover and a draught fan lower cover which are detachably connected up and down, the draught fan upper cover is provided with a first end and a second end which are opposite to each other, and a noise reduction mechanism is arranged in the first end; the noise reduction mechanism comprises a horizontally-arranged air inlet rotary blade set, the flow guide direction of blades in the air inlet rotary blade set is consistent with the airflow direction when an impeller of the fan body rotates, the second end can stretch into a fan lower cover, and a gap is reserved between at least part of the outer wall of the second end and the inner wall of the fan lower cover. And gas entering the fan cover body from the dust inlet can flow into the base station body from the space, and is discharged out of the base station body through an airflow channel which is formed between the inner wall of the base station body and the outer wall of the fan lower cover and is communicated with the base station exhaust hole. Noise generated by the fan in the dust collection process can be reduced, and the noise reduction effect is improved.

The present invention provides a power assembly (100) and a surface cleaning device, the power assembly (100) comprising a housing (10) including an air outlet (11) and a drain (12), a power source (20) located within the housing (10) and configured to provide fluid power, and a sound-dampening cover (30) provided between the power source (20) and the housing (10) and comprising a perforated plate (31) and an outer wall (32), wherein water vapor in the working airflow condenses into liquid on the perforated plate (31) and / or the outer wall (32) and is then discharged from the drain (12), and the working airflow that has not condensed into liquid is discharged from the air outlet (11). The motor assembly has drain and exhaust paths, allowing for moisture separation of the working airflow entering the fan and enabling the discharge of gas and water from the motor assembly, optimizing the use of the motor assembly.

This cleaner comprises a main body exhaust port, a filter which can be installed in the main body, and a fan motor apparatus. The fan motor apparatus comprises an impeller configured to be rotatable so as to generate a suction force in the main body, a motor configured to provide the driving power to rotate the impeller, and a diffuser device. The diffuser device comprises a radiation diffuser which extends in a radial direction from the rotary shaft of the impeller and a shaft diffuser extending from the radiation diffuser. The fan motor apparatus is configured so that, when the filter is installed in the main body, the impeller is rotated by the driving power provided by the motor and air is discharged from the impeller while passing through the fan motor apparatus, is guided in a radial direction from the rotary shaft of the impeller by the radiation diffuser, Is guided to be filtered by the filter due to the shaft diffuser, and is discharged through the main body exhaust port.

A blower unit (300) for a suction device (100) is described. The blower unit (300) comprises a blower (200) configured to generate a suction airflow (240) during operation along a flow direction that runs from the intake side to the exhaust side of the blower unit (300). The blower unit (300) further comprises a blower housing (250) in which the blower (200) is arranged, and an intake-side bearing (303) and an exhaust-side bearing (304) for supporting the blower (200) on the inside of the blower housing (250).Furthermore, the blower unit (300) comprises a protective element (302) arranged on the intake-side bearing (303), which is designed to be permeated by the suction airflow (240) and to provide contact protection for the blower (200), wherein the protective element (302) is arranged on the intake-side bearing (303) such that the protective element (302) has a distance (420) to the inside of the blower capsule (250) when the blower (200) is in operation.

To restrain the generation of noise from a nozzle.SOLUTION: A nozzle comprises a main body comprising a lower surface opposed to a surface to be cleaned, a groove part 30 provided in the lower surface so as to be recessed upward from the lower surface, and a suction port 6 provided inside the groove part so as to be opposed to the surface to be cleaned. The groove part 30 includes a first groove part 31, and a second groove part 32 of which at least a portion is provided behind the first groove part 31. A depth H1 of the first groove part 31 is larger than a depth H2 of the second groove part 32.SELECTED DRAWING: Figure 9

The invention discloses a middle sweeping mechanism and cleaning equipment. The middle sweeping mechanism comprises a shell, a cleaning assembly, a driving assembly and an elastic component. The shell is provided with an accommodating cavity; the cleaning assembly is rotatably arranged in the accommodating cavity; the elastic component is arranged between the cleaning assembly and the driving assembly, the elastic component is driven by the driving assembly to drive the cleaning assembly to rotate around the axis of the elastic component, and the elastic component can generate torsional deformation in the rotating direction of the cleaning assembly. The problem that in the prior art, due to the fact that a middle sweeping assembly adopts rigid transmission, resonance and noise are generated when the middle sweeping assembly works can be solved.

A noise reduction device for cleaners according to an embodiment of the present disclosure includes: a first flow path having a first end communicating with an air outlet and a second end that is open, the first flow path extending in a first direction; and a second flow path having a first end connected between the first end and the second end of the first flow path and a second end that is closed, the second flow path extending in a second direction intersecting the first direction, wherein the first flow path is disposed to surround the second flow path.

A base station includes a base station housing provided with a dust collection port; and a dust collection assembly including a dust collection apparatus, and a dust bag compartment, a noise reduction housing, a dust collection duct and a dust collection fan arranged in the base station housing. The dust collection apparatus is arranged in the dust bag compartment, the noise reduction housing is provided with an air exhaust port, the dust collection duct communicates the dust collection port, the dust bag compartment and the noise reduction housing to form a dust collection air duct, the dust collection fan is arranged on the dust collection air duct to generate a dust collection airflow, and after the dust collection airflow brings debris in a self-moving cleaning device into the dust collection apparatus through the dust collection port, the dust collection airflow is exhausted from the air exhaust port.

A surface cleaner has a surface cleaning head having a separated material collection region which, in operation to clean a floor, receives solid and liquids. A rigid up flow conduit is moveable mounted to the surface cleaning head between an upright storage position and a reclined operating position. A hand vacuum cleaner has a first cleaning stage, a downstream second cleaning stage and a motor and fan assembly positioned in the air flow path. The first cleaning stage comprises a non-cyclonic momentum separator. The hand vacuum cleaner is removably mountable to the upper end of the up flow conduit. The hand vacuum cleaner dirty air inlet is removably mountable to the upper end of the up flow conduit and, when the hand vacuum cleaner is mounted to the upper end of the up flow conduit, the hand vacuum cleaner is supported by the up flow conduit.

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.

Backpack dust collector (1) with a housing (2) comprising a suction connection (3); a dust collection chamber (13) connected to the suction port (3) and designed to accommodate a dust collection bag (18); a motor chamber (15) connected to the dust collection chamber (13) and housing a fan (31) and a motor (32); and an outlet port (17) through which air is discharged from the motor chamber (15); a slotted portion (40) located in a flow path (16) between the motor chamber (15) and the outlet port (17) and comprising at least one slotted passage (41) through which air passes from the motor chamber (15); and a sound absorbing component (42) located in at least part of a flow path (16B) between the passage (41) and the outlet port (17), wherein the housing (2) comprises a base housing (20) and a plate (23) connected to the base housing (20), and the flow path (16B) between the passage (41) and the outlet connection (17) is defined between the base housing (20) and the plate (23), characterized in that the base housing (20) comprises a recessed portion (24) which is recessed towards the rear, the plate (23) is positioned so that it covers an opening of the recessed portion (24), the flow path (16B) is defined between an inner surface (24A) of the recessed portion (24) and a rear surface (23B) of the plate (23), and the sound absorbing member (42) is fixed to the inner surface (24A) of the recessed portion (24) and the rear surface (23B) of the plate (23).

A power assembly and a surface cleaning apparatus. The power assembly includes: a housing, which includes an air outlet and a water outlet; a power source, which is located in the housing and configured to provide fluid power; and a silencing cover, which is arranged between the power source and the housing, and includes a perforated plate and an outer side wall, where water vapor in a working airflow is condensed into liquid on the perforated plate and / or the outer side wall and then drained from the water outlet, and the working airflow that is not condensed into liquid is drained from the air outlet.

A cleaning apparatus is provided in this disclosure, which includes a body, and a cleaning device, a suction device, and a recovery device all installed to the body. The cleaning device includes a driving mechanism and a cleaning part, and the driving mechanism is configured for driving the cleaning part to clean an object to be cleaned. The suction device is configured for generating a suction airflow to remove dirt from a surface of the object to be cleaned by suction, and the suction device is provided with an air inlet and an air outlet. The recovery device is configured for recovering the dirt suctioned by the suction device, and provided with an inlet and an outlet. Noise reduction structures are provided at least two of the cleaning device, the suction device, the air inlet channel and the air outlet channel to reduce noise.

A blower unit (300) for a suction device (100) is described. The blower unit (300) comprises a blower (200) configured to generate a suction airflow (240) during operation along a flow direction that runs from the intake side to the exhaust side of the blower unit (300). The blower unit (300) further comprises a blower housing (250) in which the blower (200) is arranged, and an intake-side bearing (303) and an exhaust-side bearing (304) for supporting the blower (200) on the inside of the blower housing (250).Furthermore, the blower unit (300) comprises a protective element (302) arranged on the intake-side bearing (303), which is designed to be permeated by the suction airflow (240) and to provide contact protection for the blower (200), wherein the protective element (302) is arranged on the intake-side bearing (303) such that the protective element (302) has a distance (420) to the inside of the blower capsule (250) when the blower (200) is in operation.

The invention discloses a dust collector host locally assembled with a damping structure, which comprises a motor assembly, a dust cup and a HEPA assembly, an air inlet is arranged on the dust cup, a cyclone cone is arranged in the dust cup, the HEPA assembly is arranged at one end of the dust cup, the HEPA assembly comprises a HEPA frame and a first HEPA, the HEPA frame is mounted at one end of the cyclone cone, and the first HEPA is mounted at the other end of the cyclone cone. The first HEPA is installed on the HEPA frame, the motor assembly is arranged at one end of the first HEPA, and the motor assembly is connected to the dust cup; the motor assembly comprises a motor, a motor cover and a motor end cover, one end of the motor end cover is connected with the dust cup, the other end of the motor end cover is connected with the motor cover, the motor is arranged in the motor cover, a plurality of through holes are formed in the motor cover and are arranged at intervals in the circumferential direction of the motor cover, and damping shock absorption components are arranged in the through holes. Compared with the prior art, the dust collector has the advantages that the damping component is arranged, so that the dust collector can be buffered after being collided, the dust collector is prevented from being damaged, and the service life is prolonged.

Provided is a cleaning device comprising at least one noise source and an air conducting unit having at least one flow deflection element (10), the at least one flow deflection element (10) having a first pipe arm (16) and a second pipe arm (18), the second pipe arm (18) extending transversely to the first pipe arm (16), sound propagating from the first pipe arm (16) into the second pipe arm (18) during operation of the cleaning device, characterized in that a mode filtering unit (72) for transverse modes of sound propagation is arranged on the at least one flow deflection element (10), the mode filtering unit (72) comprising at least one mode filter (74; 84; 90) that is positioned on the second pipe arm (18).

A cleaning apparatus is provided, including at least one noise source and an air guidance device having at least one flow deflection element, wherein the at least one flow deflection element has a first duct arm and a second duct arm, wherein the second duct arm is oriented transversely to the first duct arm, and wherein, during operation of the cleaning apparatus, there is sound propagation from the first duct arm to the second duct arm, wherein a mode filter device for transverse modes of sound propagation is arranged at the at least one flow deflection element, having at least one mode filter that is positioned at the second duct arm.

To provide a vacuum cleaner capable of suppressing noise.SOLUTION: A vacuum cleaner includes: a cylindrical electric blower cover arranged inside a housing; and an electric blower stored inside the electric blower cover. The electric blower cover includes: a main cylinder part arranged in the periphery of the electric blower so as to support an outer frame of the electric blower via vibration-proof members; a suction port; a discharge port; and a tapered cylinder part arranged between the main cylinder part and the discharge port. A cross-sectional area of the discharge port is smaller than a cross-sectional area of the main cylinder part, and a cross-sectional area of the tapered cylinder part becomes smaller from an upstream side toward a downstream side in an air stream direction.SELECTED DRAWING: Figure 2

The application provides a handheld dust collector, comprising: a main machine shell; an air flow generator arranged in the main machine shell, the air flow generator being used for forming a negative pressure in the main machine shell, and the air flow generator and the main machine shell constituting a channel for air flow; and a dust separator arranged in the main machine shell, the dust separator being located between the air flow generator and the main machine shell and surrounding the air flow generator. When the dust separator surrounds the air flow generator, the height of the air flow generator and the height of the dust separator partially overlap, so that the total height of the assembled dust separator and air flow generator is less than the sum of the height of the dust separator and the height of the air flow generator. Compared with the air flow generator and the dust separator arranged separately in the prior art, the height of the main machine shell can be obviously reduced.