US20130183141A1 - Air moving devices - Google Patents
Air moving devices Download PDFInfo
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- US20130183141A1 US20130183141A1 US13/739,393 US201313739393A US2013183141A1 US 20130183141 A1 US20130183141 A1 US 20130183141A1 US 201313739393 A US201313739393 A US 201313739393A US 2013183141 A1 US2013183141 A1 US 2013183141A1
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- United States
- Prior art keywords
- housing
- air
- moving device
- section
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/04—Antivibration arrangements
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K13/00—Devices for grooming or caring of animals, e.g. curry-combs; Fetlock rings; Tail-holders; Devices for preventing crib-biting; Washing devices; Protection against weather conditions or insects
- A01K13/001—Washing, cleaning, or drying devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/14—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum cleaning by blowing-off, also combined with suction cleaning
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
Definitions
- the present disclosure generally relates to devices that move air, such as by blowing or by suction, and more particularly to devices that move air and have noise and/or vibration reducing features.
- Air moving devices may include air blowing devices, such as hair blowers, and suction devices, such as vacuum cleaners.
- Air moving devices typically include a housing including an inlet and an outlet for air flow.
- a motor contained within the housing drives a fan and sucks air into the housing through the inlet and blows the air out from the outlet.
- a hair dryer is an air blowing device that is used to dry wet hair or fur. When the air reaches wet hair or fur, it helps evaporate water from the hair or fur.
- Hair dryers currently on the market typically have a straight-in, straight-out air duct configuration in which the air inlet of a motor is pressed against a back wall of the housing of the hair dryer.
- the air flow causes loud noise and ultra-high frequency sounds to be emitted from the inlet of the motor.
- the motor is typically in direct contact with the housing of the hair dryer.
- the interaction between the motor and the housing causes significant vibrations and pulsations.
- Such noises and vibrations may render an air moving device unsuitable for certain applications.
- household pets, such as dogs and cats may be frightened by the noises and vibrations emitted by such hair dryers.
- Chinese Patent CN201733706U discloses a ring that spaces a motor from a housing in which the motor is placed so that the motor is not in direct contact with the housing.
- this ring does not provide significant cushioning and is prone to damage by the vibrations of the motor.
- air moving devices that include features, which reduce noise and vibration during the operation of the air moving device.
- an air moving device may include a housing and a motor within the housing.
- the motor may include a casing having a peripheral surface and an outer end surface.
- At least one shock absorber may be positioned adjacent one end of the casing.
- the at least one shock absorber may have a first section and a second section.
- the first section may include an inner surface in contact with a portion of the peripheral surface of the casing and an outer surface in contact with a first portion of the housing.
- the second section may include an inner surface in contact with a portion of the outer end surface of the casing and an outer surface in contact with a second portion of the housing.
- the casing may be spaced from the housing by the at least one shock absorber.
- the at least one shock absorber may be formed from resilient or semi-resilient material.
- the inner and outer surfaces of the first section may be formed from an inner wall and an outer wall connected to one another by a plurality of struts, which may have a geometric shape.
- the first section may include a plurality of chambers defined between the struts.
- the plurality of chambers may have a geometric shape, e.g., trapezoidal.
- a membrane may be disposed within each chamber connecting neighboring struts.
- the plurality of struts may be arranged at an angle to the inner wall and the outer wall of the first section.
- the outer surface of the second section may include a plurality of concentric rings in contact with the second portion of the housing.
- the first section may be arranged orthogonal to the second section.
- the device may further include a second shock absorber including the first and second sections described above, and may be positioned at another end of the casing of the motor.
- an air moving device may include a housing including an air inlet end and including a central longitudinally extending axis, and a motor within the housing.
- the motor may be configured to cause air to flow along the central longitudinally extending axis.
- a noise reduction system may be disposed between the motor and the air inlet end of the housing.
- the noise reduction system may include a filter assembly.
- the filter assembly may include a basket provided with a plurality of ports for the passage of air from the air inlet end along the central longitudinally extending axis.
- a filter may be positioned over the ports in the basket.
- the noise reduction system may further include a noise attenuation assembly.
- the noise attenuation assembly may include a noise attenuation panel configured to divert the flow of air within the housing in a direction orthogonal to the central longitudinally extending axis.
- the noise attenuation panel may include a grating member axially aligned with the central longitudinally extending axis, and may include a plurality of ports through which the air is flowable.
- a filter may be disposed around the ports of the grating member. The filter assembly may be positioned between the noise attenuation assembly and the air inlet end.
- an air moving device may include a housing having an air inlet end and a central longitudinally extending axis, and a motor within the housing.
- the motor may be configured to cause air to flow along the central longitudinally extending axis.
- the motor may include a casing including opposing ends. Each end may have a peripheral surface and an outer end surface.
- a first shock absorber may be positioned at the first end of the casing and a second shock absorber positioned at the second end of the casing.
- Each shock absorber may have a first section and a second section.
- the first section may include an inner surface in contact with a portion of the peripheral surface of the casing and an outer surface in contact with a first portion of the housing.
- the second section may include an inner surface in contact with a portion of the outer end surface of the casing and an outer surface in contact with a second portion of the housing.
- the casing may be spaced from the housing by the first and second absorbers.
- a noise reduction system may be disposed between the motor and the air inlet end of the housing.
- the noise reduction system may include a filter assembly.
- the filter assembly may include a basket provided with a plurality of ports for the passage of air from the air inlet end along the central longitudinally extending axis.
- a filter may be positioned over the ports in the basket.
- the noise reduction system may also include a noise attenuation assembly.
- the noise attenuation assembly may include a noise attenuation panel configured to divert the flow of air within the housing in a direction orthogonal to the central longitudinally extending axis.
- the inner and outer surfaces of the first section may be formed from an inner wall and an outer wall connected to one another by a plurality of struts, and the first section may be arranged orthogonal to the second section.
- the noise attenuation panel may include a grating member axially aligned with the central longitudinally extending axis.
- the grating member may include a plurality of ports through which the air is flowable, and may further include a filter disposed around the ports of the grating member.
- the filter assembly may be positioned between the noise attenuation assembly and the air inlet end.
- FIG. 1 is a perspective view of an air moving device in accordance with the present invention
- FIG. 2 is a schematic view of air flow through an air blower device in a first configuration of the air moving device
- FIG. 3 is a schematic view of air flow through an air suction device in a second configuration of the air moving device
- FIG. 4 is an exploded view of the air moving device of FIG. 1 with parts removed;
- FIG. 5A is a partially cutaway perspective view of the shock absorber shown in FIG. 4 in accordance with an embodiment of the invention
- FIG. 5B is a partially cutaway front view of the shock absorber shown in FIG. 4 in accordance with an embodiment of the invention.
- FIG. 6 is a perspective view of the air moving device of FIG. 1 with parts removed;
- FIG. 7 is another exploded view of the air moving device of FIG. 1 with parts removed;
- FIG. 8 is a cutaway perspective view of the air moving device of FIG. 1 ;
- FIG. 9A is a back perspective view of a back cover
- FIG. 9B is a top perspective view of the back cover of FIG. 9A ;
- FIG. 10A is a top perspective view of a holder of a filter assembly
- FIG. 10B is a side perspective view of the holder of FIG. 10A ;
- FIG. 11 is a perspective view of a noise attenuation panel.
- proximal refers to the end or portion of a device that is relatively close to the user deploying the device
- distal refers to the end or portion of the device that is relatively farther away from the user deploying the device.
- an air moving device 100 is shown in FIG. 1 .
- the air moving device 100 includes a housing 2 having an air inlet end I and an air outlet end O.
- the air moving device 100 is configured to draw air through the housing 2 from the air inlet end I toward and through the air outlet end O.
- a back cover 4 may be secured, e.g., screwed on, to the housing 2 at the air inlet end I, and may include an opening 4 a through which outside air may flow ( FIGS. 2-3 ).
- the housing 2 may include an outlet 6 at the air outlet end O, which may be operatively coupled to a tube or nozzle assembly 8 through which air may flow.
- the diameter of the opening 4 a of the back cover 4 may be larger than that of the outlet 6 .
- the housing 2 may be formed from two sections, which are generally symmetrical with respect to one another along a length of the housing.
- a handle 10 may extend from a back side of the housing 2 .
- a control switch 12 for activating and adjusting the settings of the air moving device 100 may be located on or within the handle 10 .
- a motor 17 is mounted within the housing 2 .
- the motor 17 may be a dual-blade motor, which may move more air than a single-blade motor with less heat emission, which may contribute to a longer lifespan.
- Air may be drawn through the housing 2 from the inlet end I along direction F by the operation of the motor 17 may draw air from the inlet end I and into a centrally disposed channel 17 c extending through the motor, directing the air to flow out from the outlet 6 of the housing.
- air Prior to entering the channel 17 c of motor 17 , air may flow through the housing 2 in a non-linear fashion and not along a straight path from the opening 4 a to the channel 17 c of the motor 17 .
- this non-linear flow of air, along direction F through the housing 2 may contribute to noise abatement and attenuation.
- the air moving device 100 may be configured to function as a blow dryer, as shown in FIG. 2 , in which air is drawn in direction F through the housing 2 and out through the tube or nozzle assembly 8 , which is operatively coupled to the outlet 6 at the air outlet end O.
- the air moving device 100 may be configured to function as a vacuum suction device in which the nozzle assembly 8 is operatively coupled to air inlet end I of the housing 2 and air is drawn in direction F and through outlet 6 .
- the housing 2 may include a compartment 14 defined between annular walls 15 which are separated along a length of the housing, in which a generally cylindrical casing 17 a of motor 17 may be positioned.
- the walls 15 may extend from an inner wall of the housing 2 in a radial axial direction, and the distance between the walls may correspond to the length of the casing of the motor.
- Two shock absorber 18 may be fitted onto opposing ends of the casing 17 a of motor 17 and may partially cover the circumference of the casing. For example, a side surface and an end surface at opposite ends of the casing 17 a of motor 17 may be encased by the shock absorbers 18 A.
- the motor 17 When operated, the motor 17 may vibrate and, if not held in place, may have a tendency to move in both a radial and axial longitudinal direction.
- the motor 17 When the motor 17 is coupled to the shock absorbers 18 A and is placed within the compartment 14 between the walls 15 , the motor 17 is snuggly received within the compartment and movement of the motor relative to the housing 2 is substantially prevented.
- the shock absorbers 18 A provide a resilient barrier between the motor 17 and the housing 2 , spacing the motor from the inner surfaces of the housing.
- the shock absorbers 18 may be shaped and configured to cover a portion of the ends of the casing 17 a of motor 17 .
- the casing 17 a of motor 17 may be generally cylindrical in configuration and the shock absorbers 18 may be generally annular in configuration.
- the shock absorbers 18 may be configured to fit snuggly around the perimeter or circumference of the casing 17 a.
- the shock absorbers 18 may be formed from elastic or resilient material, such as rubber, silicone or other such polymers, or the like. In that regard, the shock absorbers 18 A may be sufficiently compliant so that the shock absorbers provide a cushion between the motor 17 and the housing 2 .
- vibrations generated by the motor may be absorbed by the shock absorbers 18 A in both a radial and an axial direction, and resonance or transfer of such vibrations from the motor to the housing 2 may be inhibited.
- the shock absorbers 18 A may frictionally engage inner surfaces of the housing 2 to inhibit movement of the motor 17 with respect to the housing in both a radial and an axial direction.
- the shock absorbers 18 A may include a first section 20 A and a second section 22 .
- the first section 20 A may include an inner facing surface 24 of an inner wall 24 a, which may be substantially planar.
- the first section 20 A may extend in a radially outward direction from the inner surface 24
- the second section 22 may extend in a radially inward direction from the inner surface.
- the first section 20 A may include an outer facing surface 26 of an outer wall 26 a that is connected to the inner surface 24 by a plurality of spaced apart struts 28 A.
- the struts 28 A may have a triangular shaped configuration ( FIG. 5A ), a diamond shaped configuration or other geometric or polygonal configuration.
- a plurality of chambers 30 A may be positioned between the struts 28 A.
- Each chamber 30 A may be generally open or may have a relatively thin membrane or web formed within the chamber connecting the struts 28 A.
- Each of the inner and outer surfaces 24 and 26 of the first section 20 A may be concentric, substantially planar, and parallel to one another.
- An outer surface of the second section 22 may include a plurality of concentric rings 32 (e.g., four such rings as shown in FIG. 5A ), which may be separated from one another by one or more grooves 33 that are defined in the outer surface of the second section.
- the rings 32 may have a configuration that is tooth-shaped, diamond-shaped, arc-shaped, convex, corrugated, or another shape.
- the rings 32 may each have an apex or high point, which is configured to contact wall 15 .
- the apices of the rings 32 may be generally coplanar with respect to one another, such that the outer surface of the second section 22 may be substantially flush against the outer surface.
- An inner surface 34 of the second section 22 may be generally planar, and arranged perpendicular to the inner facing surface 24 , which surfaces engage the motor casing 17 a.
- FIG. 5B Another embodiment of a shock absorber 18 B is shown in FIG. 5B .
- the shock absorber 18 B is substantially similar to the shock absorber 18 A described above with the following differences.
- the first section 20 B includes a plurality of struts 28 B that connect inner wall 24 b to outer wall 26 b and may have axes that are arranged, orthogonal or at an acute or obtuse angle, with respect to the inner and outer surfaces 24 , 26 .
- the struts 20 B may define chambers 30 B and 30 C therebetween, which may each have a generally trapezoidal configuration.
- the chambers 30 B may be smaller, larger, or equal in size to the chambers 30 C, and may be generally open or may have a relatively thin membrane or web formed within the chambers connecting the struts 28 B.
- the chamber 30 B may be wider nearer the outer surface 26 and narrower closer to the inner surface 24 so as to form a trapezoid.
- the chamber 30 C may be narrower nearer the outer surface 26 and wider nearer the inner surface 24 so as to form a trapezoid.
- the chambers 30 B and 30 C may have other geometric shapes, such as polygonal, triangular, or the like.
- the casing 17 a of motor 17 may be positioned within the compartment 14 of the housing 2 along with the shock absorbers 18 fitted to opposing ends of the casing so that the casing and the housing are spaced apart and are not in direct contact. Instead, the inner surfaces 24 of the first section 20 A or 20 B and the inner surface 22 of the second section 22 of the shock absorbers 18 are fitted onto the opposing end edges of the casing 17 a of motor 17 so that the shock absorbers 18 prevent direct contact between the casing of the motor and the housing 2 .
- the rings 32 provided on the outer surface of the second section may contact the walls 15 of compartment 14 , and outer surface 26 of the first section 20 A or 20 B contact the housing 2 , so that the shock absorbers 18 space the casing 17 a of motor 17 from the interior surfaces of the housing 2 .
- an annular space S 1 separates the side of the casing 17 a of motor 17 from the wall of the housing 2 , and the ends of the casing 17 a of motor 17 are spaced from the walls 15 of compartment 14 by spaces S 2 and S 3 .
- the shock absorbers 18 are configured and dimensioned to engage the surfaces of the compartment 14 , thereby limiting the movement of the motor 17 with respect to the housing 2 in both a radial and longitudinally axial directions and inhibiting the transfer of vibrations from the motor 17 to the housing 2 .
- the outer surface 26 may engage the wall of compartment 14 and inhibit radial movement of the motor 17 with respect to the housing 2
- the second section 22 may engage the walls 15 of compartment 14 to facilitate a secure fit and inhibit longitudinal axial movement of the motor 17 with respect to the housing 2 .
- spacing the casing 17 a of the motor 17 apart from the walls of the housing 2 the transmission of vibrations to the housing 2 are reduced. Such spacing size is dependent upon the thickness of the first section 20 A or 20 B and the second section 22 of the shock absorbers 18 A or 18 B, respectively, and may be increased to further reduce the transmission of vibrations from the motor 17 to the housing 2 .
- a ventilation grill 38 may be provided and may be disposed within the outlet 6 .
- a pipe joint 39 may be operatively coupled to the outlet 6 , and may facilitate coupling the outlet 6 to the nozzle assembly 8 and related attachments.
- the back cover 4 may include an inlet channel 40 and a filter 36 .
- the filter 36 may buffer or reduce noise generated by the motor 17 from spreading out from the housing 2 , and/or may filter and collect dust, hair, debris, and the like from the air flowing along direction F into the housing.
- a noise reduction system 41 may include a filter assembly 42 and a noise attenuation assembly 57 .
- the filter assembly 42 which includes a basket 44 and a filter 46 , and the noise attenuation assembly 57 may be disposed within the housing.
- the back cover 4 as shown in FIGS.
- the inlet channel 40 may be generally cylindrical and may extend along a length within the back cover 4 so that a tunnel is formed within which sounds may intersect and create interference.
- the filter assembly 42 may be secured to the outlet end of the back cover 4 .
- the basket 44 of the filter assembly 42 may threadably engage internal threading 5 of the back cover 4 .
- a flanged section 52 of the basket 44 having screw threads 53 may radially extend from the side wall 50 .
- the threads 53 of flanged section 52 may be secured to the threading 5 of the back cover 4 , thereby securing the filter assembly 42 to the back cover.
- the filter assembly 42 may be positioned with respect to the back cover 4 such that a filter chamber 56 is disposed between the filter 46 and the inlet channel 40 . Dust, hair, debris, and the like may be collected within the filter chamber 56 .
- the basket 44 may include a base 47 including a grated perimeter 48 , including ports 48 a, and a base plate 49 disposed within the grated perimeter.
- a side wall 49 a may be positioned along the perimeter of the base plate 49 and the grated perimeter.
- the side wall 49 a may be generally cylindrical in shape.
- Ports 48 a may be generally rectangular in configuration and may be separated from one another by a plurality of strut-like members 48 b.
- the ports 48 a are depicted as being generally rectangular, the ports 48 a may have any geometric shape, including for example, arcuate, circular, or the like.
- the grated perimeter 48 may be disposed radially around the base plate 49 .
- the basket 44 is configured to receive filter 46 within the side wall 50 .
- the filter 46 may have an annular configuration such that the filter is positioned abutting the grated perimeter 48 .
- direction F FIGS. 2-3
- the air is diverted by the base plate 49 and flows through the filter 46 and the ports 48 a of grated perimeter 48 before flowing toward outlet 6 .
- the base plate 49 may block the flow of air therethrough, and the air may instead flow through the ports 48 a of the grated perimeter 48 , which are disposed around the base plate 49 . Dust, hair, debris, and the like may be trapped within the filter 46 .
- the noise attenuation assembly 57 may include a noise attenuation panel 58 and an annular filter 61 operatively coupled to the noise attenuation panel 58 .
- the noise attenuation assembly 57 may be secured within a noise attenuation slot 66 within the housing 2 , such that the noise attenuation assembly 57 is positioned between the filter assembly 42 and the motor 17 .
- the noise attenuation panel 58 may include an annular disk member 60 and a grating member 62 positioned substantially at the center of the disk member 60 .
- the grating member 62 may contact the base plate 49 of the basket 44 , and the side wall 49 a surrounding the base plate 49 may be disposed around the grating member 62 such that movement of the noise attenuation assembly 57 with respect to the filter assembly 42 is inhibited.
- the grating member 62 may include a cover plate 63 , which may be substantially perpendicular to the direction F of the flow of air through the air moving device 100 , and a grating along its circumference including a plurality of open ports 64 , which may include ventilation ports.
- the grating member 62 may be cylindrical and extend from the annular disk member 60 in a direction toward the air inlet end I.
- the annular filter 61 may be positioned upon the annular disk member 60 and may be disposed around and in contact with the grating member 62 .
- the annular filter 61 may be formed from a polymer.
- the interaction of the air with the housing creates a noise
- the motor 17 emits a noise within the same space as the flowing air.
- the sound of the air being sucked through the housing 2 and the noise created by the motor 17 are confluent in the air inlet channel 40 , thereby cancelling each other and reducing the emission of noise.
- the collision of the sound of the air and the sound of the motor causes the vast majority of noise to be canceled out by one another.
- the filter assembly 42 and the noise attenuation assembly 57 as well as their constituent parts, each provides a barrier to the noise generated by the operation of motor 17 .
- air As air is drawn into housing 2 , it is drawn through filter 36 and through the air inlet channel 40 and into the filter chamber 56 . As the air flows in direction F, it first passes through the filter assembly 42 and then through the noise attenuation assembly 57 . In particular, the air continues in direction F being diverted by base plate 49 toward and through filter 46 and through ports 48 a (not shown). The air, having passed through ports 48 a, then passes through filter 61 , and through ports 64 into the interior of grating member 62 . The air then flows into and through channel 17 c of motor 17 and toward the outlet 6 of the housing 2 . Thus, the air does not flow through the housing 2 along a straight-in, straight-out pathway.
- the incoming air is separated and enters the channel 17 c of motor 17 via the ports of the grating member 62 , so that the incoming air is inhibited from creating a vortex at the inlet of the motor. Also, noise generated by the motor is inhibited from spreading outward by the noise attenuation assembly 57 .
- the filter assembly 42 and the noise attenuation assembly 57 as well as their constituent parts, provide noise attenuation and abatement.
- a TES 1350A noise analyzer was used to measure the noise of the pet hair dryer of the present invention and that of a conventional pet hair dryer.
- the test results demonstrated that in a state where the hair dryers are running at full speed, the noise of the conventional pet hair dryer was 80 to 90 decibels while the noise of the air moving device 100 was 70 to 75 decibels.
- the vibration frequency of a conventional pet hair dryer was measured to be between 15 and 30 m/s 2
- the vibration frequency of the air moving device 100 was measured to be only between 6 and 9 m/s 2 .
- shock absorbers described hereinabove may be used to reduce vibrations, noise, and/or movement of any motor that is positioned within a housing, and are not limited to in application to air blowers or suction devices. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention.
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Abstract
Disclosed herein is an air moving device which includes a housing and a motor. The air moving device may include at least one shock absorber which is configured to reduce vibrations and/or noise. The air moving device may also be configured to cancel out noises generated when operating the device.
Description
- The present application claims the benefit of the filing dates of People's Republic of China Utility Model No. 20120025081.7, filed Jan. 18, 2012, People's Republic of China Utility Model 201220026443.4, filed Jan. 18, 2012, People's Republic of China Utility Model 201220026456.1, filed Jan. 18, 2012, People's Republic of China Utility Model No. 201220026460.8, filed Jan. 18, 2012, People's Republic of China Utility Model No. 201220480996.7, filed Sep. 18, 2012, the disclosures of all of which are hereby incorporated herein by reference in their entireties.
- The present disclosure generally relates to devices that move air, such as by blowing or by suction, and more particularly to devices that move air and have noise and/or vibration reducing features.
- Air moving devices may include air blowing devices, such as hair blowers, and suction devices, such as vacuum cleaners. Air moving devices typically include a housing including an inlet and an outlet for air flow. A motor contained within the housing drives a fan and sucks air into the housing through the inlet and blows the air out from the outlet. A hair dryer is an air blowing device that is used to dry wet hair or fur. When the air reaches wet hair or fur, it helps evaporate water from the hair or fur.
- Hair dryers currently on the market typically have a straight-in, straight-out air duct configuration in which the air inlet of a motor is pressed against a back wall of the housing of the hair dryer. When the motor is operated, the air flow causes loud noise and ultra-high frequency sounds to be emitted from the inlet of the motor. In addition, the motor is typically in direct contact with the housing of the hair dryer. When the motor is operated, the interaction between the motor and the housing causes significant vibrations and pulsations. Such noises and vibrations may render an air moving device unsuitable for certain applications. For example, household pets, such as dogs and cats, may be frightened by the noises and vibrations emitted by such hair dryers.
- Attempts to reduce noise and vibrations during the operation of hair dryers have not failed to resolve these issues. For example, Chinese Patent CN201733706U discloses a ring that spaces a motor from a housing in which the motor is placed so that the motor is not in direct contact with the housing. However, this ring does not provide significant cushioning and is prone to damage by the vibrations of the motor.
- There is a continuing need for air moving devices that emit less noise and vibrate less.
- Disclosed herein are air moving devices that include features, which reduce noise and vibration during the operation of the air moving device.
- In an embodiment, an air moving device may include a housing and a motor within the housing. The motor may include a casing having a peripheral surface and an outer end surface. At least one shock absorber may be positioned adjacent one end of the casing. The at least one shock absorber may have a first section and a second section. The first section may include an inner surface in contact with a portion of the peripheral surface of the casing and an outer surface in contact with a first portion of the housing. The second section may include an inner surface in contact with a portion of the outer end surface of the casing and an outer surface in contact with a second portion of the housing. The casing may be spaced from the housing by the at least one shock absorber. The at least one shock absorber may be formed from resilient or semi-resilient material. The inner and outer surfaces of the first section may be formed from an inner wall and an outer wall connected to one another by a plurality of struts, which may have a geometric shape. The first section may include a plurality of chambers defined between the struts. The plurality of chambers may have a geometric shape, e.g., trapezoidal. A membrane may be disposed within each chamber connecting neighboring struts. The plurality of struts may be arranged at an angle to the inner wall and the outer wall of the first section. The outer surface of the second section may include a plurality of concentric rings in contact with the second portion of the housing. The first section may be arranged orthogonal to the second section. The device may further include a second shock absorber including the first and second sections described above, and may be positioned at another end of the casing of the motor.
- In another embodiment, an air moving device may include a housing including an air inlet end and including a central longitudinally extending axis, and a motor within the housing. The motor may be configured to cause air to flow along the central longitudinally extending axis. A noise reduction system may be disposed between the motor and the air inlet end of the housing. The noise reduction system may include a filter assembly. The filter assembly may include a basket provided with a plurality of ports for the passage of air from the air inlet end along the central longitudinally extending axis. A filter may be positioned over the ports in the basket. The noise reduction system may further include a noise attenuation assembly. The noise attenuation assembly may include a noise attenuation panel configured to divert the flow of air within the housing in a direction orthogonal to the central longitudinally extending axis. The noise attenuation panel may include a grating member axially aligned with the central longitudinally extending axis, and may include a plurality of ports through which the air is flowable. A filter may be disposed around the ports of the grating member. The filter assembly may be positioned between the noise attenuation assembly and the air inlet end.
- In an embodiment, an air moving device may include a housing having an air inlet end and a central longitudinally extending axis, and a motor within the housing. The motor may be configured to cause air to flow along the central longitudinally extending axis. The motor may include a casing including opposing ends. Each end may have a peripheral surface and an outer end surface. A first shock absorber may be positioned at the first end of the casing and a second shock absorber positioned at the second end of the casing. Each shock absorber may have a first section and a second section. The first section may include an inner surface in contact with a portion of the peripheral surface of the casing and an outer surface in contact with a first portion of the housing. The second section may include an inner surface in contact with a portion of the outer end surface of the casing and an outer surface in contact with a second portion of the housing. The casing may be spaced from the housing by the first and second absorbers.
- A noise reduction system may be disposed between the motor and the air inlet end of the housing. The noise reduction system may include a filter assembly. The filter assembly may include a basket provided with a plurality of ports for the passage of air from the air inlet end along the central longitudinally extending axis. A filter may be positioned over the ports in the basket. The noise reduction system may also include a noise attenuation assembly. The noise attenuation assembly may include a noise attenuation panel configured to divert the flow of air within the housing in a direction orthogonal to the central longitudinally extending axis. The inner and outer surfaces of the first section may be formed from an inner wall and an outer wall connected to one another by a plurality of struts, and the first section may be arranged orthogonal to the second section. The noise attenuation panel may include a grating member axially aligned with the central longitudinally extending axis. The grating member may include a plurality of ports through which the air is flowable, and may further include a filter disposed around the ports of the grating member. The filter assembly may be positioned between the noise attenuation assembly and the air inlet end.
- These and other embodiments of the present invention are more fully described hereinbelow.
- Embodiments of the present invention are described with reference to the accompanying drawings, in which:
-
FIG. 1 is a perspective view of an air moving device in accordance with the present invention; -
FIG. 2 is a schematic view of air flow through an air blower device in a first configuration of the air moving device; -
FIG. 3 is a schematic view of air flow through an air suction device in a second configuration of the air moving device; -
FIG. 4 is an exploded view of the air moving device ofFIG. 1 with parts removed; -
FIG. 5A is a partially cutaway perspective view of the shock absorber shown inFIG. 4 in accordance with an embodiment of the invention; -
FIG. 5B is a partially cutaway front view of the shock absorber shown inFIG. 4 in accordance with an embodiment of the invention; -
FIG. 6 is a perspective view of the air moving device ofFIG. 1 with parts removed; -
FIG. 7 is another exploded view of the air moving device ofFIG. 1 with parts removed; -
FIG. 8 is a cutaway perspective view of the air moving device ofFIG. 1 ; -
FIG. 9A is a back perspective view of a back cover; -
FIG. 9B is a top perspective view of the back cover ofFIG. 9A ; -
FIG. 10A is a top perspective view of a holder of a filter assembly; -
FIG. 10B is a side perspective view of the holder ofFIG. 10A ; and -
FIG. 11 is a perspective view of a noise attenuation panel. - Particular embodiments of the present disclosure are described with reference to the accompanying drawings. In the figures and in the description that follow, like reference numerals identify similar or identical elements. As used throughout the following description, the term “proximal” refers to the end or portion of a device that is relatively close to the user deploying the device, and the term “distal” refers to the end or portion of the device that is relatively farther away from the user deploying the device.
- In an embodiment, an
air moving device 100 is shown inFIG. 1 . Theair moving device 100 includes ahousing 2 having an air inlet end I and an air outlet end O. Theair moving device 100 is configured to draw air through thehousing 2 from the air inlet end I toward and through the air outlet end O. Aback cover 4 may be secured, e.g., screwed on, to thehousing 2 at the air inlet end I, and may include anopening 4 a through which outside air may flow (FIGS. 2-3 ). Thehousing 2 may include anoutlet 6 at the air outlet end O, which may be operatively coupled to a tube ornozzle assembly 8 through which air may flow. The diameter of theopening 4 a of theback cover 4 may be larger than that of theoutlet 6. Thehousing 2 may be formed from two sections, which are generally symmetrical with respect to one another along a length of the housing. Ahandle 10 may extend from a back side of thehousing 2. Acontrol switch 12 for activating and adjusting the settings of theair moving device 100 may be located on or within thehandle 10. - As shown in
FIGS. 2-3 , amotor 17 is mounted within thehousing 2. Themotor 17 may be a dual-blade motor, which may move more air than a single-blade motor with less heat emission, which may contribute to a longer lifespan. Air may be drawn through thehousing 2 from the inlet end I along direction F by the operation of themotor 17 may draw air from the inlet end I and into a centrally disposedchannel 17 c extending through the motor, directing the air to flow out from theoutlet 6 of the housing. Prior to entering thechannel 17 c ofmotor 17, air may flow through thehousing 2 in a non-linear fashion and not along a straight path from theopening 4 a to thechannel 17 c of themotor 17. As will be discussed in greater detail below, this non-linear flow of air, along direction F through thehousing 2, may contribute to noise abatement and attenuation. - The
air moving device 100 may be configured to function as a blow dryer, as shown inFIG. 2 , in which air is drawn in direction F through thehousing 2 and out through the tube ornozzle assembly 8, which is operatively coupled to theoutlet 6 at the air outlet end O. Alternatively, as shown inFIG. 3 , theair moving device 100 may be configured to function as a vacuum suction device in which thenozzle assembly 8 is operatively coupled to air inlet end I of thehousing 2 and air is drawn in direction F and throughoutlet 6. - As shown in
FIG. 4 , thehousing 2 may include acompartment 14 defined betweenannular walls 15 which are separated along a length of the housing, in which a generallycylindrical casing 17 a ofmotor 17 may be positioned. In particular, thewalls 15 may extend from an inner wall of thehousing 2 in a radial axial direction, and the distance between the walls may correspond to the length of the casing of the motor. Twoshock absorber 18 may be fitted onto opposing ends of thecasing 17 a ofmotor 17 and may partially cover the circumference of the casing. For example, a side surface and an end surface at opposite ends of thecasing 17 a ofmotor 17 may be encased by theshock absorbers 18A. When operated, themotor 17 may vibrate and, if not held in place, may have a tendency to move in both a radial and axial longitudinal direction. When themotor 17 is coupled to theshock absorbers 18A and is placed within thecompartment 14 between thewalls 15, themotor 17 is snuggly received within the compartment and movement of the motor relative to thehousing 2 is substantially prevented. Theshock absorbers 18A provide a resilient barrier between themotor 17 and thehousing 2, spacing the motor from the inner surfaces of the housing. - The
shock absorbers 18 may be shaped and configured to cover a portion of the ends of thecasing 17 a ofmotor 17. For example, thecasing 17 a ofmotor 17 may be generally cylindrical in configuration and theshock absorbers 18 may be generally annular in configuration. Theshock absorbers 18 may be configured to fit snuggly around the perimeter or circumference of thecasing 17 a. Theshock absorbers 18 may be formed from elastic or resilient material, such as rubber, silicone or other such polymers, or the like. In that regard, theshock absorbers 18A may be sufficiently compliant so that the shock absorbers provide a cushion between themotor 17 and thehousing 2. By cushioning the vibrations generated by themotor 17, vibrations generated by the motor may be absorbed by theshock absorbers 18A in both a radial and an axial direction, and resonance or transfer of such vibrations from the motor to thehousing 2 may be inhibited. In addition, theshock absorbers 18A may frictionally engage inner surfaces of thehousing 2 to inhibit movement of themotor 17 with respect to the housing in both a radial and an axial direction. - As shown in
FIG. 5A , theshock absorbers 18A may include afirst section 20A and asecond section 22. Thefirst section 20A may include an inner facingsurface 24 of aninner wall 24 a, which may be substantially planar. Thefirst section 20A may extend in a radially outward direction from theinner surface 24, and thesecond section 22 may extend in a radially inward direction from the inner surface. Thefirst section 20A may include an outer facingsurface 26 of anouter wall 26 a that is connected to theinner surface 24 by a plurality of spaced apart struts 28A. The struts 28A may have a triangular shaped configuration (FIG. 5A ), a diamond shaped configuration or other geometric or polygonal configuration. A plurality ofchambers 30A may be positioned between the struts 28A. Eachchamber 30A may be generally open or may have a relatively thin membrane or web formed within the chamber connecting the struts 28A. Each of the inner andouter surfaces first section 20A may be concentric, substantially planar, and parallel to one another. - An outer surface of the
second section 22 may include a plurality of concentric rings 32 (e.g., four such rings as shown inFIG. 5A ), which may be separated from one another by one ormore grooves 33 that are defined in the outer surface of the second section. Therings 32 may have a configuration that is tooth-shaped, diamond-shaped, arc-shaped, convex, corrugated, or another shape. Therings 32 may each have an apex or high point, which is configured to contactwall 15. The apices of therings 32 may be generally coplanar with respect to one another, such that the outer surface of thesecond section 22 may be substantially flush against the outer surface. Aninner surface 34 of thesecond section 22 may be generally planar, and arranged perpendicular to the inner facingsurface 24, which surfaces engage themotor casing 17 a. - Another embodiment of a
shock absorber 18B is shown inFIG. 5B . Theshock absorber 18B is substantially similar to theshock absorber 18A described above with the following differences. Thefirst section 20B includes a plurality ofstruts 28B that connectinner wall 24 b toouter wall 26 b and may have axes that are arranged, orthogonal or at an acute or obtuse angle, with respect to the inner andouter surfaces struts 20B may definechambers chambers 30B may be smaller, larger, or equal in size to thechambers 30C, and may be generally open or may have a relatively thin membrane or web formed within the chambers connecting thestruts 28B. Thechamber 30B may be wider nearer theouter surface 26 and narrower closer to theinner surface 24 so as to form a trapezoid. Thechamber 30C may be narrower nearer theouter surface 26 and wider nearer theinner surface 24 so as to form a trapezoid. In other embodiments, thechambers - As shown in
FIG. 6 , thecasing 17 a ofmotor 17 may be positioned within thecompartment 14 of thehousing 2 along with theshock absorbers 18 fitted to opposing ends of the casing so that the casing and the housing are spaced apart and are not in direct contact. Instead, theinner surfaces 24 of thefirst section inner surface 22 of thesecond section 22 of theshock absorbers 18 are fitted onto the opposing end edges of thecasing 17 a ofmotor 17 so that theshock absorbers 18 prevent direct contact between the casing of the motor and thehousing 2. In this regard, therings 32 provided on the outer surface of the second section may contact thewalls 15 ofcompartment 14, andouter surface 26 of thefirst section housing 2, so that theshock absorbers 18 space thecasing 17 a ofmotor 17 from the interior surfaces of thehousing 2. - In particular, an annular space S1 separates the side of the
casing 17 a ofmotor 17 from the wall of thehousing 2, and the ends of thecasing 17 a ofmotor 17 are spaced from thewalls 15 ofcompartment 14 by spaces S2 and S3. Theshock absorbers 18 are configured and dimensioned to engage the surfaces of thecompartment 14, thereby limiting the movement of themotor 17 with respect to thehousing 2 in both a radial and longitudinally axial directions and inhibiting the transfer of vibrations from themotor 17 to thehousing 2. For example, theouter surface 26 may engage the wall ofcompartment 14 and inhibit radial movement of themotor 17 with respect to thehousing 2, and/or thesecond section 22 may engage thewalls 15 ofcompartment 14 to facilitate a secure fit and inhibit longitudinal axial movement of themotor 17 with respect to thehousing 2. Moreover, by spacing thecasing 17 a of themotor 17 apart from the walls of thehousing 2, the transmission of vibrations to thehousing 2 are reduced. Such spacing size is dependent upon the thickness of thefirst section second section 22 of theshock absorbers motor 17 to thehousing 2. - As shown in
FIGS. 7 and 8 , at the air outlet end O of thehousing 2, aventilation grill 38 may be provided and may be disposed within theoutlet 6. A pipe joint 39 may be operatively coupled to theoutlet 6, and may facilitate coupling theoutlet 6 to thenozzle assembly 8 and related attachments. - At the air inlet end I of the
housing 2, theback cover 4 may include aninlet channel 40 and afilter 36. Thefilter 36 may buffer or reduce noise generated by themotor 17 from spreading out from thehousing 2, and/or may filter and collect dust, hair, debris, and the like from the air flowing along direction F into the housing. Anoise reduction system 41 may include afilter assembly 42 and anoise attenuation assembly 57. Between theback cover 4 and the inlet end of themotor 17, thefilter assembly 42, which includes abasket 44 and afilter 46, and thenoise attenuation assembly 57 may be disposed within the housing. Theback cover 4, as shown inFIGS. 9A and 9B , may includeair inlet channel 40 that is in fluid communication with theopening 4 a in the back cover. Theinlet channel 40 may be generally cylindrical and may extend along a length within theback cover 4 so that a tunnel is formed within which sounds may intersect and create interference. - The
filter assembly 42 may be secured to the outlet end of theback cover 4. For example, thebasket 44 of thefilter assembly 42 may threadably engageinternal threading 5 of theback cover 4. In particular, as shown inFIGS. 10A and 10B , aflanged section 52 of thebasket 44 havingscrew threads 53 may radially extend from theside wall 50. Thethreads 53 offlanged section 52 may be secured to the threading 5 of theback cover 4, thereby securing thefilter assembly 42 to the back cover. Referring back toFIGS. 2-3 , thefilter assembly 42 may be positioned with respect to theback cover 4 such that afilter chamber 56 is disposed between thefilter 46 and theinlet channel 40. Dust, hair, debris, and the like may be collected within thefilter chamber 56. - As further shown in
FIGS. 10A and 10B , thebasket 44 may include a base 47 including a gratedperimeter 48, includingports 48 a, and abase plate 49 disposed within the grated perimeter. A side wall 49 a may be positioned along the perimeter of thebase plate 49 and the grated perimeter. The side wall 49 a may be generally cylindrical in shape.Ports 48 a may be generally rectangular in configuration and may be separated from one another by a plurality of strut-like members 48 b. Although theports 48 a are depicted as being generally rectangular, theports 48 a may have any geometric shape, including for example, arcuate, circular, or the like. Thegrated perimeter 48 may be disposed radially around thebase plate 49. Thebasket 44 is configured to receivefilter 46 within theside wall 50. Thefilter 46 may have an annular configuration such that the filter is positioned abutting thegrated perimeter 48. When air flows in direction F (FIGS. 2-3 ), the air is diverted by thebase plate 49 and flows through thefilter 46 and theports 48 a ofgrated perimeter 48 before flowing towardoutlet 6. In other words, thebase plate 49 may block the flow of air therethrough, and the air may instead flow through theports 48 a of thegrated perimeter 48, which are disposed around thebase plate 49. Dust, hair, debris, and the like may be trapped within thefilter 46. - Referring back to
FIGS. 7-8 , thenoise attenuation assembly 57 may include anoise attenuation panel 58 and anannular filter 61 operatively coupled to thenoise attenuation panel 58. Thenoise attenuation assembly 57 may be secured within anoise attenuation slot 66 within thehousing 2, such that thenoise attenuation assembly 57 is positioned between thefilter assembly 42 and themotor 17. As shown inFIG. 11 , thenoise attenuation panel 58 may include anannular disk member 60 and a gratingmember 62 positioned substantially at the center of thedisk member 60. The gratingmember 62 may contact thebase plate 49 of thebasket 44, and the side wall 49 a surrounding thebase plate 49 may be disposed around the gratingmember 62 such that movement of thenoise attenuation assembly 57 with respect to thefilter assembly 42 is inhibited. - The grating
member 62 may include acover plate 63, which may be substantially perpendicular to the direction F of the flow of air through theair moving device 100, and a grating along its circumference including a plurality ofopen ports 64, which may include ventilation ports. The gratingmember 62 may be cylindrical and extend from theannular disk member 60 in a direction toward the air inlet end I. Theannular filter 61 may be positioned upon theannular disk member 60 and may be disposed around and in contact with the gratingmember 62. Theannular filter 61 may be formed from a polymer. - As the air flows in direction F into the
housing 2, the interaction of the air with the housing creates a noise, and themotor 17 emits a noise within the same space as the flowing air. Not to be bound to any particular theory, the sound of the air being sucked through thehousing 2 and the noise created by themotor 17 are confluent in theair inlet channel 40, thereby cancelling each other and reducing the emission of noise. In particular, the collision of the sound of the air and the sound of the motor causes the vast majority of noise to be canceled out by one another. Additionally, thefilter assembly 42 and thenoise attenuation assembly 57, as well as their constituent parts, each provides a barrier to the noise generated by the operation ofmotor 17. - Referring back to
FIGS. 2 and 3 , as air is drawn intohousing 2, it is drawn throughfilter 36 and through theair inlet channel 40 and into thefilter chamber 56. As the air flows in direction F, it first passes through thefilter assembly 42 and then through thenoise attenuation assembly 57. In particular, the air continues in direction F being diverted bybase plate 49 toward and throughfilter 46 and throughports 48 a (not shown). The air, having passed throughports 48 a, then passes throughfilter 61, and throughports 64 into the interior of gratingmember 62. The air then flows into and throughchannel 17 c ofmotor 17 and toward theoutlet 6 of thehousing 2. Thus, the air does not flow through thehousing 2 along a straight-in, straight-out pathway. Not to be bound to any particular theory, the incoming air is separated and enters thechannel 17 c ofmotor 17 via the ports of the gratingmember 62, so that the incoming air is inhibited from creating a vortex at the inlet of the motor. Also, noise generated by the motor is inhibited from spreading outward by thenoise attenuation assembly 57. In combination, as well as individually, thefilter assembly 42 and thenoise attenuation assembly 57, as well as their constituent parts, provide noise attenuation and abatement. - In a test environment where the ambient noise was 35 decibels, at a distance of 0.3 meters from the product, a TES 1350A noise analyzer was used to measure the noise of the pet hair dryer of the present invention and that of a conventional pet hair dryer. The test results demonstrated that in a state where the hair dryers are running at full speed, the noise of the conventional pet hair dryer was 80 to 90 decibels while the noise of the
air moving device 100 was 70 to 75 decibels. In addition, the vibration frequency of a conventional pet hair dryer was measured to be between 15 and 30 m/s2, whereas the vibration frequency of theair moving device 100 was measured to be only between 6 and 9 m/s2. - Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. For example, the shock absorbers described hereinabove may be used to reduce vibrations, noise, and/or movement of any motor that is positioned within a housing, and are not limited to in application to air blowers or suction devices. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention.
Claims (20)
1. An air moving device, comprising:
a housing;
a motor within the housing, the motor including
a casing having a peripheral surface and an outer end surface;
at least one shock absorber positioned adjacent one end of the casing and having a first section and a second section, wherein:
the first section includes an inner surface in contact with a portion of the peripheral surface of the casing and an outer surface in contact with a first portion of the housing; and
the second section includes an inner surface in contact with a portion of the outer end surface of the casing and an outer surface in contact with a second portion of the housing,
wherein the casing is spaced from the housing by the at least one shock absorber.
2. The air moving device of claim 1 , wherein the at least one shock absorber is formed from resilient or semi-resilient material.
3. The air moving device of claim 1 , wherein the outer surface of the second section includes a plurality of concentric rings in contact with the second portion of the housing.
4. The air moving device of claim 1 , wherein the inner and outer surfaces of the first section are formed from an inner wall and an outer wall connected to one another by a plurality of struts which have a geometric shape.
5. The air moving device of claim 4 , wherein the first section includes a plurality of chambers defined between the struts.
6. The air moving device of claim 5 , wherein the plurality of chambers have a geometric shape.
7. The air moving device of claim 5 , wherein a membrane is disposed within each chamber connecting neighboring struts.
8. The air moving device of claim 4 , wherein the plurality of struts are arranged at an angle to the inner wall and the outer wall of the first section.
9. The air moving device of claim 1 , wherein the first section is arranged orthogonal to the second section.
10. The air moving device of claim 1 , further comprising a second shock absorber including said first section and said second section positioned at another end of the casing of the motor.
11. An air moving device, comprising:
a housing including an air inlet end and including a central longitudinally extending axis;
a motor within the housing, the motor configured to cause air to flow along the central longitudinally extending axis; and
a noise reduction system disposed between the motor and the air inlet end of the housing, the noise reduction system including a filter assembly including a basket provided with a plurality of ports for the passage of air from the air inlet end along the central longitudinally extending axis.
12. The air moving device of claim 11 , further comprising a filter positioned over the ports in the basket.
13. The air moving device of claim 11 , wherein the noise reduction system further comprises a noise attenuation assembly including a noise attenuation panel configured to divert the flow of air within the housing in a direction orthogonal to the central longitudinally extending axis.
14. The air moving device of claim 13 , wherein the noise attenuation panel includes a grating member axially aligned with the central longitudinally extending axis, the grating member including a plurality of ports through which air is flowable.
15. The air moving device of claim 14 , further comprising a filter disposed around the ports of the grating member.
16. An air moving device, comprising:
a housing having an air inlet end and a central longitudinally extending axis;
a motor within the housing, the motor including a casing including opposing ends, each end having a peripheral surface and an outer end surface, the motor configured to cause air to flow along the central longitudinally extending axis;
a first shock absorber positioned at the first end of the casing and a second shock absorber positioned at the second end of the casing, the casing of the motor being spaced from the housing by the first and second shock absorbers, each shock absorber having a first section and a second section, the first section includes an inner surface in contact with a portion of the peripheral surface of the casing and an outer surface in contact with a first portion of the housing, and the second section includes an inner surface in contact with a portion of the outer end surface of the casing and an outer surface in contact with a second portion of the housing; and
a noise reduction system disposed between the motor and the air inlet end of the housing, the noise reduction system including a filter assembly including a basket provided with a plurality of ports for the passage of air from the air inlet end along the central longitudinally extending axis.
17. The air moving device of claim 16 , further comprising a filter positioned over the ports in the basket.
18. The air moving device of claim 16 , wherein the inner and outer surfaces of the first section are formed from an inner wall and an outer wall connected to one another by a plurality of struts, and wherein the first section is arranged orthogonal to the second section.
19. The air moving device of claim 16 , wherein the noise reduction system further comprises a noise attenuation assembly including a noise attenuation panel configured to divert the flow of air within the housing in a direction orthogonal to the central longitudinally extending axis.
20. The air moving device of claim 19 , wherein the noise attenuation panel includes a grating member axially aligned with the central longitudinally extending axis, the grating member including a plurality of ports through which the air is flowable, and a filter is disposed around the ports of the grating member.
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
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CN201220026443.4 | 2012-01-18 | ||
CN201220026456.1 | 2012-01-18 | ||
CN201220025081.7 | 2012-01-18 | ||
CN2012200250817U CN202435936U (en) | 2012-01-18 | 2012-01-18 | Pet blowing dryer with damping function |
CN2012200264608U CN202425436U (en) | 2012-01-18 | 2012-01-18 | Hair dryer for pets |
CN201220026443 | 2012-01-18 | ||
CN2012200264561U CN202435937U (en) | 2012-01-18 | 2012-01-18 | Low-noise pet hair drier |
CN201220026460.8 | 2012-01-18 | ||
CN201220480996.7 | 2012-09-18 | ||
CN201220480996 | 2012-09-18 |
Publications (1)
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Application Number | Title | Priority Date | Filing Date |
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US13/739,393 Abandoned US20130183141A1 (en) | 2012-01-18 | 2013-01-11 | Air moving devices |
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CN202435936U (en) * | 2012-01-18 | 2012-09-19 | 佛山市顺德区新生源电器有限公司 | Pet blowing dryer with damping function |
CN202425436U (en) * | 2012-01-18 | 2012-09-12 | 佛山市顺德区新生源电器有限公司 | Hair dryer for pets |
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- 2013-01-11 US US13/739,393 patent/US20130183141A1/en not_active Abandoned
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JP2017000197A (en) * | 2015-06-04 | 2017-01-05 | 三菱電機株式会社 | Vacuum cleaner |
JP2017029523A (en) * | 2015-08-04 | 2017-02-09 | 三菱電機株式会社 | Vacuum cleaner |
US11116369B2 (en) | 2016-04-27 | 2021-09-14 | Diversey, Inc. | Vacuum cleaner |
US11937759B2 (en) * | 2016-04-27 | 2024-03-26 | Diversey Switzerland Services Gmbh | Vacuum cleaner |
US20220400913A1 (en) * | 2016-04-27 | 2022-12-22 | Diversey, Inc. | Vacuum cleaner |
US11452412B2 (en) | 2016-04-27 | 2022-09-27 | Diversey, Inc. | Vacuum cleaner |
US20180103813A1 (en) * | 2016-10-18 | 2018-04-19 | Lg Electronics Inc. | Remaining water suction device having air blowing function |
US20200315417A1 (en) * | 2016-10-18 | 2020-10-08 | Lg Electronics Inc. | Remaining water suction device having air blowing function |
US11517162B2 (en) * | 2016-10-18 | 2022-12-06 | Lg Electronics Inc. | Remaining water suction device having air blowing function |
CN107957168A (en) * | 2016-10-18 | 2018-04-24 | Lg电子株式会社 | Residual water suction apparatus with air air blowing function |
KR102661282B1 (en) * | 2016-10-18 | 2024-04-25 | 엘지전자 주식회사 | Remaining water suction device having air blowing function |
JP2018075207A (en) * | 2016-11-10 | 2018-05-17 | パナソニックIpマネジメント株式会社 | Vacuum cleaner |
US11434929B2 (en) | 2019-08-02 | 2022-09-06 | Techtronic Cordless Gp | Blowers having noise reduction features |
US11841023B2 (en) | 2019-08-02 | 2023-12-12 | Techtronic Cordless Gp | Blowers having noise reduction features |
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US11778960B2 (en) | 2020-01-21 | 2023-10-10 | Techtronic Cordless Gp | Blowers |
US11889794B2 (en) | 2020-12-30 | 2024-02-06 | Milwaukee Electric Tool Corporation | Handheld blower |
USD1003541S1 (en) * | 2023-05-26 | 2023-10-31 | Zhejiang Rifeng Electric Co., Ltd. | Vacuum cleaner |
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Legal Events
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AS | Assignment |
Owner name: FOSHAN SHUNDE XINSHENGYUEN ELECTRICAL APPLIANCES C Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TAN, JIANLIANG;REEL/FRAME:029645/0238 Effective date: 20130110 |
|
AS | Assignment |
Owner name: FOSHAN SHUNDE XINSHENGYUAN ELECTRICAL APPLIANCES C Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TAN, JIANLIANG;REEL/FRAME:029891/0981 Effective date: 20130110 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |