CN105317747A - Air mover air inlet interface and cover - Google Patents

Air mover air inlet interface and cover Download PDF

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Publication number
CN105317747A
CN105317747A CN201510435619.XA CN201510435619A CN105317747A CN 105317747 A CN105317747 A CN 105317747A CN 201510435619 A CN201510435619 A CN 201510435619A CN 105317747 A CN105317747 A CN 105317747A
Authority
CN
China
Prior art keywords
air flow
impeller
flow increaser
lid
air
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.)
Pending
Application number
CN201510435619.XA
Other languages
Chinese (zh)
Inventor
J·D·劳费
M·伊奈宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gentherm Inc
Original Assignee
Gentherm Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gentherm Inc filed Critical Gentherm Inc
Publication of CN105317747A publication Critical patent/CN105317747A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/424—Double entry casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4246—Fan casings comprising more than one outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to an air mover assembly, an air inlet interface and a cover. The air mover assembly includes: (a) an impeller which has an impeller external diameter and a rotation axis; (b) a motor used for driving the impeller; (c) an air mover shell which packages at least part of the motor and impeller and includes at least one air inlet and at least one air outlet, the air inlet receiving air when the impeller rotates; and (d) an air mover air inlet interface which is adjacent to the at least one air inlet and includes: (i) a height, and (ii) a wall which extends outward along a direction of air flow, and (iii) an internal diameter, at least one part of the wall along the air mover air inlet interface at the height having a bending part, and the internal diameter being smaller than the impeller external diameter.

Description

Air flow increaser intake interface and lid
Technical field
This instruction relates to a kind of air flow increaser (airmover), this air flow increaser has the intake interface of the improvement of noise decrease (aerodynamic noise produced by blower specifically) at suction port, air outlet or both places, and while noise decrease, prevent foreign matter from entering the lid of the suction port of air flow increaser, air outlet or both improvement.
Background technique
Air flow increaser comprises the motor with rotor and stator.Usually, the axle of rotor extend through stator and rotor around stator rotation.Rotor connects (communication) with the impeller of air blast when rotated.Motor and impeller be usually located at there is suction port and air outlet housing in, make air be introduced suction port discharging from air outlet by impeller.Air produces aerodynamic noise that noise can be heard by user, that vibrate enough large decibel that can be experienced by user, genetic system when entering and/or leave housing.In addition, the suction port of blower (blower) housing and air outlet can comprise the lid preventing foreign matter from entering housing.Lid may limit produced by air flow increaser air flowing, the aerodynamic noise, the genetic system that are produced by air flow increaser may be aggravated.Most reason in the whole air flow increaser noises produced passes in and out the flowing of air flow increaser or the mobile aerodynamic noise produced in air flow increaser by air.U.S. Patent No. 2,001,522,2,393,933,4,531,890,5,336,050,6,003,950,6,547,519 and U.S. Patent Application Publication No.2006/0171804,2010/0098544 and 2012/0114512 disclose the example of air flow increaser and lid, the full content of these patents is clearly incorporated into this by reference for whole object.
Need a kind of air flow increaser, it is included in the air flow increaser interface reducing the global noise of blower when unduly hindering air to flow into air flow increaser.Need a kind of air flow increaser interface, air is guided to impeller in the mode reducing the aerodynamic noise produced by air flow increaser by it.Need a kind of lid, it reduces the noise of blower when unduly hindering air to move into blower.To expect that there is such lid: while the total height maintaining air flow increaser is in predetermined packaging space, the amount of the usable area of air flow increaser suction port (air) of increasing supply.
Summary of the invention
By providing following air flow increaser assembly, what be originally taught in making us against expectation solving these problems here is one or more.A kind of air flow increaser assembly, it comprises: (a) impeller, and described impeller has impeller outer diameter and rotation axis; (b) motor, described motor is for driving described impeller; (c) air flow increaser housing, motor and described impeller described in described air flow increaser packaging shell are at least partially, described air flow increaser housing comprises at least one suction port and at least one air outlet, and described suction port is admission of air when described wheel rotation; And (d) air flow increaser intake interface, described air flow increaser intake interface and at least one suction port described adjoin and comprise: (i) highly, (ii) wall, the direction that described wall flows along air stretches out, described wall along described air flow increaser intake interface described height at least partially there is curved part, and (iii) inner diameter; Wherein, described inner diameter is less than described impeller outer diameter.
The possible mode of execution of of this instruction comprises: a kind of air flow increaser lid, and it comprises grid portion, and described grid portion is suitable for while preventing the object of preliminary dimension from passing through, allow air to move; Wherein, described grid portion comprises: the general profile shape that (1) protrudes; (2) there is at least one first through hole opening being disposed generally on central authorities of the first geometrical shape, with have second geometrical shape different from described first geometrical shape and multiple radial directions adjacent with the described through hole opening being disposed generally on central authorities diametrically adjoin through hole opening; (3) multiple linkage structure, described multiple linkage structure has the center density in the middle section in described grid portion and the proximity density in the region around described middle section, wherein when the total length of the described linkage structure using the per unit area in each region is measured, described center density is higher than described proximity density; (4) have the first area at least one first be disposed generally on central authorities through hole opening, adjoin through hole opening with multiple radial directions all with the second area different from described first area; Or (1) to the combination in any of (4).
By providing a kind of air flow increaser, it is included in when unduly hindering air to flow into air flow increaser and reduces the air flow increaser interface of the overall noise of blower, this instruction make us against expectation solving these problems in one or more.This instruction provides a kind of air flow increaser interface, and air is directed to impeller in the mode reducing the aerodynamic noise produced by air flow increaser by it.This instruction provides a kind of lid, and it reduces the noise of blower when unduly hindering air to move in blower.This instruction provides a kind of lid, and it adds the amount of the usable area of air supply flow increaser suction port (air) while the total height maintaining air flow increaser is in predetermined packaging space.
Accompanying drawing explanation
Fig. 1 shows the stereogram of air flow increaser;
Fig. 2 shows the exploded view of air flow increaser;
Fig. 3 shows the perspective, cut-away view of the air flow increaser of Fig. 1;
Fig. 4 shows the sectional view of the air flow increaser of Fig. 1;
Fig. 5 shows the close up view in the cross section of the air flow increaser of Fig. 4;
Fig. 6 A shows the example of the air flow increaser intake interface with circular bend portion;
Fig. 6 B shows the example of the air flow increaser intake interface with curved part, and this curved part has a par;
Fig. 6 C shows the example of the air flow increaser intake interface with oval curved part;
Fig. 7 shows sound to be increased with the increase of flow;
Fig. 8 shows the stereogram of the air flow increaser comprising lid;
Fig. 9 shows the plan view of the air flow increaser comprising lid;
Figure 10 A shows the air flow increaser of Fig. 8 and the sectional view of lid;
Figure 10 B shows when covering the sectional view for air flow increaser and lid time flat;
Figure 11 shows the geometrical shape of lid;
Figure 12 shows the plan view of each through hole area of lid and lid;
Figure 13 A shows the side view of the lid with roughly flat profile dome;
Figure 13 B shows the side view of the lid with low profile dome;
Figure 13 C shows the side view of the lid with middle profile dome;
Figure 13 D shows the side view of the lid with high profile dome;
Figure 13 E shows the side view of the flat lid being integrally connected to air flow increaser intake interface;
Figure 13 F shows the side view of only flat lid;
Figure 13 G shows the side view of flat lid, and this flat lid has the linkage structure of circular cross-section, and this flat lid is integrally connected to air flow increaser intake interface;
Figure 13 H shows the side view of only flat lid, and this flat lid has the linkage structure of circular cross-section; And
Figure 14 shows the device for testing the sound produced by air flow increaser.
Embodiment
Explanation in this paper and explanation are intended to make those skilled in the art be familiar with the present invention, principle of the present invention and practical use of the present invention.Those skilled in the art can transform in a variety of forms and apply the present invention, so that the needs of the most applicable special-purpose.Therefore, the specific embodiment of the present invention set forth is not intended to be exhaustive or to limit this instruction.Therefore, the scope of this instruction should not determined with reference to above explanation, and the four corner of the equivalent should given with reference to claims and these claims comes together to determine.The disclosure comprising patent application and disclosed all articles and reference is merged in by reference for whole object.Accessory rights is required that other combination pushed away also is possible, these other be combined through to quote and be also incorporated into this written explanation at this.
This instruction requires U.S. Provisional Patent Application No.62/031, the preference of 271, and its full content is incorporated into this by reference for all objects.This instruction can with arbitrary fan, blower, air flow increaser, the similar device for making air movement, or their combination uses together.As discussed here, use fan, blower and air flow increaser interchangeably, and the term fan used is intended to comprise blower, air flow increaser or for making other any device or their combination of the fluid movement of such as air etc.Fan may be used for by air from primary importance move to the second place with heat supply, dispel the heat, cooling or their combination be provided.Fan can be radial fan, axial fan or both.Fan can in parts mobile air.Such as, air can be moved to refrigerator or comprise in equipment, electric component or both housings by fan.Fan can be arranged in vehicle.Preferably, fan can be connected with seat.Fan can be installed to below the bun (bun) of seat or seat cushion, the bun being positioned at seat or seat cushion or both realizing simultaneously, and/or fan can be installed to the back of seat.Fan is made to be positioned at seat in the seat cushion that fan can extend to seat.(such as, from insertion part, from cushion, from chair framework, or their combination) fan can be suspended in midair during use.Preferably, fan can be connected with Vehicular battery.Fan can be used in vehicle to pass through seat to make fluid move.More preferably, fan can be low profile fan.
(predict) this instruction is realized: this fan comprises housing, impeller, motor and control gear (such as, circuit) based on providing following fan (that is, blower).Housing may be used for partly and/or fully encapsulating the parts of fan to produce the pressure difference making air movement.Housing can encapsulate all functions parts of fan.Housing can make fan be connected with passage, air-source, thermoelectric device, can comprise thermoelectric device, inserting member, cover, pipe, open space or its combination.Housing can make fan be connected with one or more device, and fan is maintained in device and/or system.Such as, fan can be connected with seat by housing, makes fan that air can be made to move and passes through seat.Housing can comprise one or more suction port, one or more air outlet, or both.Such as, housing can comprise two contrary air outlets.Housing can be one (single-piece) design.Preferably, housing is more than one piece design.Such as housing can comprise left member and right member.Suction port, air outlet or both can partly or universally be formed at left member, right member or both.When left member and right member link together, suction port, air outlet or both can only be formed universally.Such as, left member and right member in conjunction with time can form complete suction port.More than one piece design can to comprise and lower part.Suction port, air outlet or both can partly or to be universally arranged in, the one of lower part or both.More than one piece design can around impeller, motor or both connect, make impeller, motor or both all or part of be positioned at housing.
Motor can be connected in system, so that stator support rotor by the stator that can be connected to housing.Motor may be used for making wheel rotation, mobile air, rotor turns or this few person is had both.Motor may be used for rotating the rotor making impeller movement.Motor can comprise stator.
Stator may be used for making rotor be connected to housing, make rotor turns or both have both.Stator can make rotor, impeller or both are roughly around their axis rotation.The stator magnet that can have via rotor makes one or more windings of rotor movement.When energized, one or more winding can produce and rotor and impeller be moved to make the electric field of air movement.
Stator can be covered by rotor at least in part.Rotor may be used for making air to rotate and mobile, impeller is moved or both have both.Rotor can rotate around axis (that is, rotation axis).Rotor can be positioned at one or more bearing and/or comprise one or more bearing, makes rotor have low frictional rotation.Rotor can comprise the impeller for making air movement.Rotor can comprise goblet and/or rotor and can be connected to goblet to be formed with impeller and be connected.
Goblet may be used for roughly around stator, hold rotor, hold one or more magnet, be connected to axle or its combination.Goblet can with impeller formed be connected impeller is balanced, impeller is located relative to axle or both have both.Goblet can be fixedly connected to axle.Goblet for good and all can be connected to axle.Goblet can be fixedly connected to one or more magnet and make that magnet is not directly connected to impeller, impeller can be made to move around stator for magnet or both have both.Goblet can at least in part shaping in impeller, to be press-fitted in impeller or both have both.
One or more magnet may be used for making rotor movement during fan action.When winding is energized, one or more magnet can around stator rotation.Rotor can comprise the magnet of q.s, making rotor turns, air is moved or both have both.One or more magnet can by hypanthial position, by magnet to hypanthial connection or both come locate relative to stator.
Impeller can hold all or part of of rotor.Impeller can comprise wheel hub.Wheel hub can be positioned at housing completely.Wheel hub can enough high with by motor holding in housing.Wheel hub can extend beyond housing, extend housing outer or both have both.Wheel hub can not extend the part outside intake grill.Wheel hub can be more than about more than 3/4ths or even identical with the total height of impeller height of the total height of about more than 2/3rds, the impeller of the total height of impeller.Wheel hub can be less than 1/4th of the total height of the only about half of following or impeller of the total height of about less than 2/3rds, the impeller of the total height of impeller.Impeller can release air, introduce air or both have both.Impeller can be made up of any materials that impeller can be made to move air.Preferably, impeller is made up of plastics or lightweight material.Impeller can by shaping material, injecting forming material or both make.Impeller can be made of metal.Impeller can be enough large, makes the air of the mobile q.s of impeller energy with heating and/or cooling occupant, user, interested position or its combination.Impeller can be enough little, makes rotor to be assemblied in parts, preferably in vehicle component.Preferably, impeller can be formed by injection moulding and/or post forming (overmolding).Impeller can around the axle of the goblet of rotor, rotor or both be shaping.Such as, can to hold the mode at least partially of rotor with wheel hub shaping around goblet for the wheel hub of impeller.Wheel hub can be a part for the base portion of impeller.
The base portion of impeller may be used for providing blade support face, provides blade tie point, radially extends or its combination from wheel hub.Base portion can form the most lower wall of impeller.The base portion of impeller, impeller or both comprise diameter, and this impeller, base portion or both diameters can be equal.Base portion can support one or more blade, preferred multiple blade.Base portion can form most outer diameter.Base portion can be made up of moulding plastics, metal, polymer, flowable materials or its combination.Base portion one-body molded, integrally can connect (or both have both) in multiple blade.
Blade may be used for moving around making air during pivot axis at impeller.Blade can make air move along one or more direction.Blade can be unidirectional blade, and air is moved along one direction.Preferably, blade is introduced air by suction port and is shifted out air by air outlet radial direction.But blade can make air move axially from suction port to air outlet.Blade can be positioned near the circumference of impeller.Each blade can be parallel with adjacent blades.One or more blade comprises top edge, lower limb, outward edge and inward flange (that is, edge).Edge can comprise one or more straightway, one or more curved section, one or more parallel edge, one or more edges relative to the angled extension in another edge.Edge can be: blade is general square shape, substantially rectangular, almost diamond, roughly trapezoidal, there is the angled portion that tilts from opposite edges or its combination.The top edge of multiple blade can roughly stop along plane, makes top edge be roughly the same height.Lower limb can all roughly stop at base portion place.Outward edge can be positioned at the outside of the diameter of impeller.Inward flange can near the center of impeller relative to outward edge.Inward flange, top edge or both can have rake.Blade can comprise contoured surface (contouredsurface).This contoured surface may be used for moving air along principal direction.The contoured surface of blade radially can move air.Contoured surface can in rotational direction or with the direction of direction of rotation extend.Blade, impeller or both can comprise outer diameter (such as, the maximum diameter of impeller).Outer diameter can according to will movement fluid prearranging quatity and change.Can increase outer diameter will the volume of fluid of movement to increase.Outer diameter can be positioned at the outward edge of blade, the outward edge of base portion or both.Outer diameter roughly can extend to the wall of housing.The outer diameter of impeller can be greater than the overall dimensions (such as, diameter) of the suction port of housing.
Suction port may be used for making when wheel rotation air enter housing, air flow increaser assembly or both.Suction port may be used for the immediate access being provided to impeller and blade during action.Suction port can be positioned at above impeller, be positioned at above motor, along rotation axis or its combination.Suction port can comprise air flow increaser intake interface.
Air flow increaser intake interface can be the surface be directed to by air in suction port.Air flow increaser intake interface may be used for the speed reducing the fluid (such as, air) extended in suction port.Air flow increaser intake interface may be used for the turbulent flow (turbulence) of the fluid reducing to enter suction port.Air flow increaser intake interface can from housing outwardly.Air flow increaser intake interface can be given prominence to vertically and leave housing.Air flow increaser intake interface can to extend in housing, towards impeller or both opening gradually vertically along with air flow increaser intake interface.Air flow increaser intake interface can comprise inner periphery, peripheral edge or both.
Inner periphery may be used for air to import in air flow increaser intake interface, form the low friction inlet point of fluid (such as, air) or both have both.Inner periphery can be the outermost edge of air flow increaser intake interface.Inner periphery can be the terminal edge of air flow increaser intake interface.Inner periphery can form suction port inner diameter, have suction port inner diameter or both have both.Suction port inner diameter can be the minimum diameter of suction port.Inner periphery can be connected to chamfer surface (radiusedsurface), curved part or both.
Chamfer surface, curved part or both may be used for mode opening gradually that the space in suction port is increased gradually.Chamfer surface may be used for inner periphery to be connected to peripheral edge.Chamfer surface can comprise Hypothesis of Single Curve Build Up, constant curvature, arc, one or more arch portion, one or more curve, one or more straightway, one or more curves with diametral curve, one or more curve with elliptic curve or its combination.Chamfer surface can stretch out and reduce the size of suction port opening.Chamfer surface can bottom upwards, make along with chamfer surface is towards impeller shaft to extension, capacity in air flow increaser intake interface increases.Chamfer surface comprises height.The height of chamfer surface can be wide enough so that fluid is guided to impeller, fluid all roughly moves or both combination along rotation axis when fluid contact impeller.The height of chamfer surface can be more than 2mm, more than 3mm, more than 4mm, more than 5mm, more than 6mm or even more than 10mm.The height of chamfer surface can be about below 30mm, below 25mm, below 20mm or even about below 15mm.Chamfer surface can extend with the enough large radius making the aerodynamic noise produced by the suction port of fluid inflow air flow increaser reduce.Chamfer surface can have the radius of about more than 2mm, more than 3mm, more than 4mm, more than 5mm, more than 6mm (such as, R6) or even more than 7mm.Chamfer surface can have the radius of about below 30mm, approximately below 25mm, approximately below 20mm or about below 15mm.The height of chamfer surface can be inversely proportional to the volume produced by air flow increaser.Such as, chamfer surface is longer, then the issuable sound of air flow increaser less (but the diameter of suction port can directly affect the volume produced by air flow increaser).Chamfer surface can extend internally and stop at peripheral edge place.
Peripheral edge may be used for the outer diameter producing air flow increaser intake interface.Peripheral edge may be used for producing with the junction surface of housing, tie point or both.Peripheral edge can be the position that the chamfer surface on air flow increaser intake interface stops.Peripheral edge can comprise suction port outer diameter.Suction port outer diameter can have the size (that is, the diameter of suction port outer diameter can be less than the outer diameter of impeller) less than the size of impeller.Peripheral edge can extend in the suction port of housing.Peripheral edge can stop at the top of housing.Peripheral edge can guide fluid to impeller, guiding fluid enters housing or both have both.Peripheral edge can when fluid moves in housing substantially not with fluid contact.
Fluid can be directed to impeller when entering suction port by air flow increaser intake interface.Fluid may be used for producing constant current, laminar flow, the stream not having turbulent flow or its combination when mobile, makes the flowing of fluid not produce aerodynamic noise.When fluid is advanced in air flow increaser intake interface, the movement of fluid can roughly along the axis of impeller, and then fluid moves to extend radially outwardly and to contact with impeller.The movement of fluid can change based on the use of the lid on suction port.
Lid may be used for preventing foreign matter from entering blower, prevents the four limbs of user and/or finger/toe from entering blower or both have both.Lid may be used for the screen cloth (screening) providing fluid to enter blower.Lid may be used for the interference of flowing in the same limit and fluid that prevent from accessing impeller.Lid can be dome shape, hemisphere, circle, arc, flat, there is par, there is round portion, there is the elevated portion that rises gradually or its combination above the remaining part of lid.Preferably, lid is flat profile (such as, more than 80% of lid extends in single plane).Lid peak (such as, summit) can be positioned at lid approximate centre or can from off-centring.The whole region that the height covered can run through lid is impartial.The height of lid can be substantially equal to the thickness of linkage structure.The height covered in center can be substantially equal to cover outer radius, outermost edge or both place height.The height (that is, peak) of lid can be proportional relative to the cross-sectional length (such as, diameter) of lid.Height and the ratio of cross-sectional length can be about more than 1:2, more than 1:4 or about more than 1:6 (that is, about 1:6.6).Height and the ratio of cross-sectional length can be about below 1:100, below 1:50, below 1:30, approximately below 1:15 or about below 1:10.Lid can not have dome shape.The grid portion of lid, lid or both can be configured to allow constant current fluid to enter into air flow increaser, do not limit air stream, restriction be minimized or its combination.Lid can comprise a series of through holes between a series of linkage structure.Through hole can be randomly arranged in (such as, grid portion) in the region of lid.Through hole can be evenly arranged in (such as, grid portion) in the region of lid.Through hole can be joined together to form and passes through for air and arrive the grid portion of impeller.Grid portion can comprise one or more groups hole, a series of or multi-series hole, one or more radial elongated hole or its combination.Preferably, grid portion comprise at least one first be disposed generally on central authorities through hole opening (that is, one or more first through hole).
One or more first through hole may be used for the structure produced in the central part in grid portion.One or more first through hole may be used for providing the outermost structure in grid portion, provides intensity for grid portion, restriction foreign matter enters or its combination.One or more first through hole can have the multiple linkage structures having density.One or more first through hole can be positioned at middle section, along rotation axis or the combination of the two.One or more first through hole can be any shape, makes one or more adjacent through hole can around one or more first through hole radial arrangement.One or more first through hole can have about 25mm 2above, preferably approximately 35mm 2above or more preferably about 45mm 2(such as, about 51mm above 2) area.One or more first through hole can be about 110mm 2below, about 100mm 2below, about 75mm 2below or approximately 60mm 2below.One or more first through hole can be circular, oval, square, rectangle, rhombus, pentagon, Hexagon, Octagon, Heptagon or its combination.Preferably, one or more first through hole is a pentagon through hole at the center being positioned at grid portion.One or more first through hole can be all same size.One or more first through hole can be different size.One or more first through hole can be the size identical with the through hole around the first through hole radial arrangement.
The adjacent through hole opening (that is, the second through hole) of one or more (preferably multiple) radial direction can be had around the first through hole radial arrangement.Second through hole may be used for providing structure, forming curves, formation dome to grid portion, providing intensity or its combination for grid.Second through hole may be used for relative to the cross-sectional length of the first through hole opening, area or the two increase cross-sectional length, area or the two, make air can by through hole opening.Second through hole can have multiple linkage structure.The linkage structure of the second through hole can have the density less than the density of the linkage structure of the first through hole.Unless otherwise stated, the density discussed here is the density of the linkage structure of per unit area.Second through hole can comprise the opening area larger than the first through hole, makes the density of the second through hole be less than the density of the first through hole.The density of the linkage structure of the second through hole can extend radially outward along with the second through hole and reduce.Density measurement can be carried out by the total length of the linkage structure measuring per unit area.Such as, the total length of linkage structure can be 50mm, and the gross area of the second through hole can be 625mm 2(such as, 1mm/12.5mm 2), the total length of the linkage structure of the first through hole can be about 15mm, and the gross area of the first through hole can be about 80mm 2(such as, 1mm/5mm 2).Second through hole opening can be larger but less than the 3rd through hole opening than the first through hole opening.One or more second through hole can have about 70mm 2above, preferably approximately 90mm 2above or more preferably about 110mm 2(such as, about 115mm above 2) area.One or more second through hole can be about 200mm 2below, about 175mm 2below, about 150mm 2below or approximately 130mm 2below.Second through hole opening can be same size, can be different size, can be the combination of two or more sizes or its combination.One or more second through hole opening can be any shape of the first through hole opening discussed herein.Preferably, the second through hole aperture efficiency the 3rd through hole opening is little.
The adjacent through hole opening (that is, the 3rd through hole) of one or more (preferably multiple) radial direction can be radially arranged around multiple second through hole.One or more 3rd through hole can perform the second through hole, the first through hole or both as described herein any functions, and vice versa.3rd through hole may be used for producing dome shape, preventing foreign matter from entering blower or both have both.One or more 3rd through hole opening can be the first through hole opening, the second through hole opening or both any shapes discussed herein.3rd through hole can have density.The density of the 3rd through hole can be the length of the linkage structure of per unit area.The density of the 3rd through hole can be less than the density of the second through hole.The density of each in 3rd through hole can be less than each in the second through hole, each in the first through hole or both density.Similarly, the density of whole group of the 3rd through hole can be less than the density of whole group of the second through hole and the first through hole.The density of whole group of through hole can only based on the amount of the linkage structure of each through hole of formation.But preferably, density is based on the amount of the linkage structure of per unit area.One or more 3rd through hole can have about 100mm 2above, preferably approximately 125mm 2above or more preferably about 140mm 2(such as, about 155mm above 2) area.One or more 3rd through hole can be about 300mm 2below, about 250mm 2below, about 200mm 2below or approximately 175mm 2below.One or more 3rd through hole can be partial hexagonal shape, and thus area can be less than full hexagonal shape.The area of part the 3rd through hole can have alternately area.Such as, a 3rd through hole opening can be the part of area close to complete area, and the 3rd adjacent through hole opening can be the only about half of of total through hole opening.3rd through hole opening can have about 175mm 2below, about 150mm 2below, about 120mm 2below, about 100mm 2below or even approximately 75mm 2following area.3rd through hole opening can have about 40mm 2above, 50mm 2above or 60mm 2above area.
Grid portion can comprise radial arrangement through hole more than two, more than three groups radial arrangement through holes, more than four groups radial arrangement through holes or even more than five groups radial arrangement through holes.The instruction of the second through hole and the 3rd through hole is incorporated in this for the 4th, the 5th, the 6th or more group through hole.Two groups, three groups, four groups, or more each in group can density reduces, area increases or both have both, and makes linkage structure excessively to hinder fluid to flow.
One or more (preferably multiple) linkage structure may be used for protection impeller, prevents foreign matter from entering impeller or both have both.One or more linkage structure can renitency, power or both damage blower, impeller or both.One or more linkage structure can be the material forming grid portion.One or more linkage structure can be following characteristics: be interconnected to be formed often a series of in grid, through hole series or both.One or more linkage structure can be extend radially outwardly and rib interconnective with adjacent linkage structure.One or more linkage structure can be roughly arc, there is straightway, be connected to adjacent straight line segment and between adjacent straight line segment angulation or its combination.One or more linkage structure can have and prevents foreign matter from entering suction port, the fragmentation of opposing lid or any sectional shape that both have both.One or more linkage structure can have sectional shape of Hexagon, circle, square, pentagon, triangle, ellipse, rhombus, symmetry, asymmetric or its combination.The length of the linkage structure in each in the first through hole opening, the second through hole opening, the 3rd through hole opening etc. can measure through hole opening along with radially outward and length increases.The linkage structure of the first through hole opening can have the length of about more than 3mm, more than 4mm, more than 5mm.The linkage structure of the first through hole opening can have the length of about below 7mm, approximately below 6mm.The linkage structure of the second through hole opening can have the length of about more than 4mm, approximately more than 5mm, approximately more than 6mm (that is, 6.6mm).The linkage structure of the second through hole opening can have the length of about below 9mm, approximately below 8mm or about below 7mm.The linkage structure of the 3rd through hole opening can have the length of about more than 5mm, approximately more than 6mm, approximately more than 7mm (that is, 7.6mm).The linkage structure of the 3rd through hole opening can have the length of about below 10mm, approximately below 9mm or about below 8mm.
The sound produced by air flow increaser can be tested.Test suite can be positioned at the structure for removing all ambient sounds.Test suite can comprise phonmeter.Phonmeter can be digital phonmeter.Air flow increaser air outlet can be directly connected to flowmeter, and static pressure like this or system resistance can be roughly zero.Air flow increaser air outlet can be connected to diffusion chamber, and diffusion chamber can be adjusted to and produce predetermined static pressure or system resistance.The resistance that the static pressure used during measurement or system resistance can will work in coordination with it based on air flow increaser the system used calculates.Preferably, to the system resistance of the air outlet of air flow increaser assembly, static pressure or both be about 50%.Because system resistance can, based on the dimensional changes of air flow increaser assembly, therefore can use the system resistance curve of each given fan to carry out computing system resistance.When changing the sound that lid, air flow increaser intake interface or both and test wherein each produces, flowmeter may be used for testing the flow produced by each air flow increaser assembly.When phonmeter being placed in the distance of 200mm and the static pressure of 50% (system resistance) is applied in air flow increaser, the decibel produced by the air flow increaser assembly of instructing herein can be about less than 67, about less than 66.5, about less than 66, preferably approximately less than 65.75, more preferably about less than 65.5 or even about less than 65.25.
Example
Below test can be used to determine the volume produced by air flow increaser.Air flow increaser assembly is placed in sound proof chamber.Phonmeter is placed in the position of the suction port 200mm apart from air flow increaser.The air outlet of air flow increaser can be constrained to the static pressure (such as, system resistance) of generation 50% on air flow increaser.One or two air outlet is connected to the diffusion chamber comprising flowmeter.The diffusion chamber that flowmeter leaves the flow of the air of air flow increaser assembly with measurement is communicated with.
Fig. 1 shows the stereogram of air flow increaser assembly 2.Air flow increaser assembly 2 comprises and has inner diameter (ID 1) suction port 4 air outlet 6 contrary with a pair.
Fig. 2 shows the exploded view of air flow increaser assembly 2.Air flow increaser assembly 2 comprises and has upper 42 and the housing 40 of lower part 44.Upper 42 comprise suction port 4, upper form a pair air outlet 6 between 42 and lower part 44.Impeller 8 is removed by from housing 40, and the lid 80 extended above suction port 4 is shown.Impeller 8 comprises total height (I h), wheel hub 12 has total height (H h).
Cross section (solid) figure that the 3-3 along the line that Fig. 3 shows the air flow increaser assembly 2 of Fig. 1 intercepts.Air flow increaser assembly 2 comprises the housing 40 holding impeller 8.Impeller 8 comprises the base portion 28 with wheel hub 12 and the multiple blades 14 extended from wheel hub 12.Each blade 14 comprises top edge 16, lower limb 18, outward edge 20 and inward flange 22.As shown, inward flange 22 has rake 24 and contoured surface (contouredsurface) 26.As shown, housing 40 comprises air flow increaser intake interface 60.Air flow increaser intake interface 60 has the inner periphery 62 and peripheral edge 64 that are connected by chamfer surface (radiusedsurface) 66 (such as, curved part).
Cross section (plane) figure that the 3-3 along the line that Fig. 4 shows the air flow increaser assembly 2 of Fig. 1 intercepts.Housing 40 comprises impeller 8, and impeller 8 has the wheel hub 12 of the part holding motor 30.Rotation axis 10 extends through the center of suction port 4 of impeller 8, motor 30, housing 40.Housing 40 has the air flow increaser intake interface 60 leaving impeller 8 ground vertically and extend.Air flow increaser intake interface 60 has at suction port inner diameter (ID i) and suction port outer diameter (ID o) between extend chamfer surface 66.Impeller 8 comprises than suction port inner diameter (ID i) and suction port outer diameter (ID o) large outer diameter (D o).
Fig. 5 shows the close up view of the housing 40 of Fig. 4.The impeller 8 with multiple blade 14 is positioned at housing 40.Impeller 8 makes air move into suction port, and air flow increaser intake interface 60 guides air to flow along direction 100, and the air when air moves in housing 40 is turned gradually.Air flow increaser intake interface 60 has chamfer surface 66, and chamfer surface 66 leaves impeller 8 ground vertically and extends and have height (H).
Fig. 6 A-Fig. 6 C shows the feature example of the air flow increaser intake interface 60 that can use together with housing (not shown) or lid (not shown).Fig. 6 A shows such air flow increaser intake interface 60: this air flow increaser intake interface 60 has chamfer surface 66, and this chamfer surface 66 extends gradually between inner periphery 62 and peripheral edge 64.Chamfer surface 66 has circular fillet.
Fig. 6 B shows such air flow increaser intake interface 60: this air flow increaser intake interface 60 has chamfer surface 66, and this chamfer surface 66 is included between circumferential edges 62 and peripheral edge 64 and has multiple bending straightway.
Fig. 6 C shows such air flow increaser intake interface: this air flow increaser intake interface has the chamfer surface 66 of the elongation extended between inner periphery 62 and peripheral edge 64.Chamfer surface 66 has elliptical fillet.
Fig. 7 depicts the table of air-flow and noise.As shown, for all 4 blowers, along with flow increases, the noise associated with blower also increases.As For the illustrated example, first blower has the radius (fillet radius) of 4mm and the suction port inner diameter of 52.8mm, second blower has the radius of 4mm and the suction port inner diameter of 58.8mm, 3rd blower has the radius of 6mm and the suction port inner diameter of 52.8mm, and the 4th blower has the radius of 6mm and the suction port inner diameter of 58.8mm.As shown, relative to the air flow increaser with the less air flow increaser intake interface of radius, along with the radius size of air flow increaser intake interface increases, the noise produced by blower reduces.As shown, along with the suction port inner diameter of fan increases, noise increases.
Fig. 8 shows the stereogram of air flow increaser assembly 2.Air flow increaser assembly 2 comprises and has upper 42 and the housing 40 of lower part 44.As shown, upper 42 there is the suction port 4 comprising lid 80 (lid 80 can be formed integrally with housing or removable).Air flow increaser intake interface 60 extends between lid 80 and housing 40.
Fig. 9 shows the plan view of the housing 40 suction port 4 having lid 80.Lid 80 comprises the first through hole opening 82 being disposed generally on central authorities of the middle section being positioned at suction port 4.Lid 80 comprises radial adjacent multiple through hole openings (such as, second group of opening) 84, and multiple through hole opening 84 is arranged in the radial outside region of middle section diametrically.Lid comprises second radial adjacent multiple through hole openings (such as, the 3rd group of opening) 86, and the plurality of through hole opening 86 is arranged in the radial outside region of the opening adjacent with the first through hole opening 82 being disposed generally on central authorities diametrically.Lid 80 comprises the diameter (D) roughly the same with suction port 4 size.
Figure 10 A shows the sectional view of the line 10A-10A along Fig. 8.When impeller 8 is rotated by motor 30, air moves by covering 80 along direction 100, and the hole design in dome-shaped lid 80 reduces aerodynamic noise.Dome-shaped lid 80 has height (H).
Figure 10 B shows the sectional view of the air flow increaser assembly 2 with flat lid 80.When impeller 8 is rotated by motor 30, air moves by covering 80 along direction 100, and the hole design in lid 80 reduces aerodynamic noise.Lid 80 has highly (H ').
Figure 11 shows the lid 80 with following structure: when measuring linkage structure 88 from center towards radial outside, and the density of linkage structure 88 reduces.As shown, the first through hole opening 82 being disposed generally on central authorities has the per unit area linkage structure 88 of maximal density.One group of radial adjacent through hole opening 84 extends around the first through hole opening 82 and has more low-density linkage structure 88.Second group of radial adjacent through hole opening 86 described one group of through hole opening 84 radial outside and have than the first through hole opening 82 and the low-density linkage structure of described one group of through hole opening 84.Represent that the density of linkage structure 88 reduces by increasing hole dimension along with radially outward.
Figure 12 shows lid 80, and lid 80 has the first through hole opening 82, first through hole opening 82 and is positioned at center and is pentagon and has the first area (such as, about 51mm 2).There is second area (such as, about 115mm 2) one group of second through hole opening 84 extend along the first imaginary circles around the first through hole opening 82.3rd group of through hole opening 86 extends around second group of through hole opening 84 and the first through hole opening 82.Each through hole opening is formed by the multiple linkage structures 88 be connected to each other.Second through hole opening 84 and the 3rd through hole opening 86 are Hexagon.3rd through hole opening 86 has the first area 86A (such as, about 128mm different from each other 2) and second area 86B (such as, about 75mm 2).
Figure 13 A shows has dome height (H 1) the side view of lid 80.Highly (H 1) be roughly flat.
Figure 13 B shows has dome height (H 2) the side view of lid 80.Highly (H 2) for low profile but than height (H 1) extend high.
Figure 13 C shows has dome height (H 3) the side view of lid 80.Highly (H 3) for middle profile but than height (H 2) extend high.
Figure 13 D shows has dome height (H 4) the side view of lid 80.Highly (H 4) for high profile but than height (H 3) extend high.
Figure 13 E shows the stereogram of flat lid 80, and this lid 80 has the linkage structure 88 of hexagonal cross-sectional shape, and this lid 80 is integrally connected to air flow increaser intake interface 60.
Figure 13 F shows the stereogram of flat lid 80, and this lid 80 has the linkage structure 88 of hexagonal cross-sectional shape.
Figure 13 G shows the stereogram of flat lid 80, and this lid 80 has the linkage structure 88 of circular section shape, and this lid 80 is integrally connected to air flow increaser intake interface 60.
Figure 13 H shows the stereogram of flat lid 80, and this lid 80 has the linkage structure 88 of circular section shape.
Figure 14 shows the example of testing apparatus 120.Testing apparatus 120 is positioned at sound proof chamber 130.Testing apparatus 120 comprises digital phonmeter 132, and digital phonmeter 132 is positioned at the top distance (D of the suction port 4 of air flow increaser assembly 2 s) place.The air outlet of air flow increaser assembly 2 is connected to diffusion chamber (diffuserbox) 134.Diffusion chamber 134 turns back (replicateback) by pressure air flow increaser assembly 2 being connected to the generation of seat system (not shown).Diffusion chamber comprises the flowmeter 136 measuring the air mass flow produced by air flow increaser assembly 2.
Suppose in numerical value cited herein, between any lower value and any higher value, be separated at least 2 units, then any numerical value cited herein comprise each increase a unit from lower value to higher value between all values.Exemplarily, if the value of the process parameter of the amount of illustrated components or such as temperature, pressure, time etc. such as from 1 to 90, preferably from 20 to 80, more preferably variable from 30 to 70, be then intended to represent the value clearly listing such as 15 to 85,22 to 68,43 to 51,30 to 32 etc. in this manual.For the value being less than, suitably a unit is thought 0.0001,0.001,0.01 or 0.1.These are only the examples of things clearly wanting to illustrate, and likely combining of multiple numerical value between cited minimum value and the highest value is considered to specify that in a similar manner in this application.
In order to all objects, merge the disclosure comprising patent application and disclosed all articles and reference by reference.Term " in fact by ... composition " for illustration of combination will comprise element, composition, assembly or the step pointed out, and not affect the basis of this combination and these other element, component, assembly or steps of novel feature in essence.The term of the combination for illustration of element, composition, assembly or step used herein " comprises " or " comprising " have also contemplated that the mode of execution be made up of element, composition, assembly or step in fact.By using term " can/can " here, expect " can " attribute described arbitrarily that comprises is all optional.
Multiple element, composition, assembly or step can be provided by the element of single one, composition, assembly or step.Alternatively, the element of single one, composition, assembly or step can be divided into independent multiple elements, composition, assembly or step.Disclosure before titled with "a" or "an" or the element not having numeral-classifier compound to modify, composition, assembly or step has no intention to get rid of other element, composition, assembly or step.

Claims (15)

1. an air flow increaser assembly, it comprises:
A. impeller, described impeller has impeller outer diameter and rotation axis;
B. motor, described motor is for driving described impeller;
C. air flow increaser housing, at least partially, described air flow increaser housing comprises at least one suction port and at least one air outlet, and described suction port is admission of air when described wheel rotation for motor and described impeller described in described air flow increaser packaging shell; With
D. air flow increaser intake interface, described air flow increaser intake interface and at least one suction port described adjoin and comprise: (i) highly, (ii) wall, the direction that described wall flows along air stretches out, described wall along described air flow increaser intake interface described height at least partially there is curved part, and (iii) inner diameter;
Wherein, described inner diameter is less than described impeller outer diameter.
2. air flow increaser assembly according to claim 1, is characterized in that, both inner diameters of described impeller outer diameter and described air flow increaser intake interface include center line, and these two center lines are roughly consistent with each other along described rotation axis.
3. air flow increaser assembly according to claim 1, it is characterized in that, described impeller comprises roughly around multiple blades of the radial arrangement of the circumference of described impeller, each described blade includes top edge, lower limb, outward edge and inward flange, roughly tilting towards the described rotation axis of described impeller at least partially of described inward flange, described blade has contoured surface, and described contoured surface has the curved part limited to described inward flange from described outward edge.
4. air flow increaser assembly according to claim 3, it is characterized in that, described multiple blade is supported on the base portion of described impeller, described base portion comprises hub portion and is suitable for making described wheel rotation, described hub portion is suitable for holding described motor at least partially, and described base portion has the upper surface between the top and bottom of described impeller.
5. air flow increaser assembly according to claim 4, is characterized in that, described hub portion has the height less than 2/3rds of the distance between the described top of described impeller and described bottom.
6. the air flow increaser assembly according to any one in aforementioned claim, it is characterized in that, at least one suction port described is limited in the lid being installed on described air flow increaser housing at least in part, and described lid comprises the profile of at least one suction port described at least partially.
7. the air flow increaser assembly according to any one in aforementioned claim, it is characterized in that, described air flow increaser intake interface and described air flow increaser housing, described lid or described air flow increaser housing and described both lids be combined to form one.
8. the air flow increaser assembly according to any one in aforementioned claim, it is characterized in that, described air flow increaser intake interface has inner periphery, peripheral edge and chamfer surface, described chamfer surface extends and described peripheral edge is connected to described inner periphery between described peripheral edge and described inner periphery, and described inner periphery is different from the height of described peripheral edge.
9. the air flow increaser assembly according to any one in aforementioned claim, it is characterized in that, at least one suction port described is connected with lid, described lid comprises grid portion, described grid portion is suitable for while preventing the object of preliminary dimension from passing through, allow air to move, and described lid is roughly dome-shaped.
10. an air flow increaser lid, it comprises:
Grid portion, described grid portion is suitable for while preventing the object of preliminary dimension from passing through, allow air to move;
Wherein, described grid portion comprises:
(1) the general profile shape protruded;
(2) there is at least one first through hole opening being disposed generally on central authorities of the first geometrical shape, with have second geometrical shape different from described first geometrical shape and multiple radial directions adjacent with the described through hole opening being disposed generally on central authorities diametrically adjoin through hole opening;
(3) multiple linkage structure, described multiple linkage structure has the center density in the middle section in described grid portion and the proximity density in the region around described middle section, wherein when the total length of the described linkage structure using the per unit area in each region is measured, described center density is higher than described proximity density;
(4) have the first area at least one first be disposed generally on central authorities through hole opening, adjoin through hole opening with multiple radial directions all with the second area different from described first area; Or
(5) (1) is to the combination in any of (4).
11. air flow increaser lids according to claim 10, it is characterized in that, described air flow increaser lid comprises joint, described joint is suitable for the suction port or the air outlet that are connected to air flow increaser housing, and described joint comprises the outer bevel wall of circumference.
12. air flow increaser lids according to claim 10 or 11, it is characterized in that, described grid portion has the multiple second through hole openings adjoined with at least one first through hole opening being disposed generally on central authorities described diametrically, and described multiple second through hole opening has the second geometrical shape.
13. according to claim 10 to the air flow increaser lid according to any one of 12, it is characterized in that, described contour shape is roughly dome shape, and described roughly dome shape has height and diameter, and described height and the ratio of described diameter are that about 1:3 is to about 1:50.
14., according to claim 10 to the air flow increaser lid according to any one of 13, is characterized in that, at least one first through hole opening being disposed generally on central authorities described is pentagon, and described multiple second through hole opening is Hexagon.
15. according to claim 10 to the air flow increaser lid according to any one of 12, and it is characterized in that, described lid is flat, and the described grid portion of described lid is flat.
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JP2016035261A (en) 2016-03-17
US20160369819A1 (en) 2016-12-22
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KR101959933B1 (en) 2019-03-19
KR20160016616A (en) 2016-02-15

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