CN110425161A - A kind of the high flow rate axial flow blower and blowing device of low windage - Google Patents

A kind of the high flow rate axial flow blower and blowing device of low windage Download PDF

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Publication number
CN110425161A
CN110425161A CN201910672729.6A CN201910672729A CN110425161A CN 110425161 A CN110425161 A CN 110425161A CN 201910672729 A CN201910672729 A CN 201910672729A CN 110425161 A CN110425161 A CN 110425161A
Authority
CN
China
Prior art keywords
sleeve
air duct
guide vane
air
fixed
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
CN201910672729.6A
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Chinese (zh)
Inventor
赵得宏
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.)
Hebei Chi Ma Tuo Motor Technology Co Ltd
Original Assignee
Hebei Chi Ma Tuo Motor Technology Co Ltd
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 Hebei Chi Ma Tuo Motor Technology Co Ltd filed Critical Hebei Chi Ma Tuo Motor Technology Co Ltd
Priority to CN201910672729.6A priority Critical patent/CN110425161A/en
Publication of CN110425161A publication Critical patent/CN110425161A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00Axial-flow pumps
    • F04D19/002Axial flow fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/54Fluid-guiding means, e.g. diffusers
    • F04D29/541Specially adapted for elastic fluid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/58Cooling; Heating; Diminishing heat transfer
    • F04D29/5806Cooling the drive system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/58Cooling; Heating; Diminishing heat transfer
    • F04D29/582Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/60Mounting; Assembling; Disassembling
    • F04D29/64Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646Mounting or removal of fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/66Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667Combating 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a kind of high flow rate axial flow blower of low windage and blowing devices, which includes air duct;Impeller corresponding with its air inlet, and the motor of driving wheel rotation are provided in air duct;The multiple groups guide vane being circumferentially distributed around motor is additionally provided in air duct;Guide vane side is fixed with air duct inner wall, and the other side is fixed with motor;The air outlet of guide vane towards air duct extends, and the vertical section of guide vane is aerofoil profile;When work, motor impeller rotation, multiple groups guide vane is split to form multiple duct the inner space of air duct, avoids air-flow and generate vortex in air duct, increase air-out flow;Meanwhile the vertical section of guide vane is aerofoil profile, helps to reduce windage, air-flow velocity is improved, to improve outlet air efficiency.Further, since windage reduces, the work load of motor is alleviated, is conducive to extend the service life of blower entirety.

Description

A kind of the high flow rate axial flow blower and blowing device of low windage
Technical field
The present invention relates to blower technical fields, a kind of high flow rate axial flow blower more specifically to low windage and send Wind devices.
Background technique
Blower is to improve gas pressure by the mechanical energy of input and supply gas side by side the machinery of body.Wherein, the gas of axial flow blower It is identical as the length direction of fan blade spindle to flow blowing direction.When current axial flow blower blow flow, there are windage is big and efficiency Low deficiency, therefore still need to be transformed existing blower fan structure to solve above-mentioned deficiency.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of height of low windage Flow velocity axial flow blower and a kind of blowing device.
The technical solution adopted by the present invention to solve the technical problems is:
On the one hand, a kind of high flow rate axial flow blower of low windage, including air duct are provided;Be provided in the air duct and its The corresponding impeller of air inlet, and the motor of the driving wheel rotation;Wherein, it is additionally provided in the air duct around the electricity The multiple groups guide vane that motivation is circumferentially distributed;The guide vane side is fixed with the air duct inner wall, and the other side and institute Motor is stated to fix;The air outlet of the guide vane towards the air duct extends, and the vertical section of the guide vane is aerofoil profile.
Preferably, the motor includes the connection sleeve with air duct coaxial arrangement;The connection sleeve include with The fixed first sleeve of the guide vane, and deviate from second set of air duct air inlet one end positioned at the first sleeve Cylinder;The second sleeve internal diameter is greater than the first sleeve outer diameter;The first sleeve, which is rotatably connected to, drives the impeller to turn Dynamic output shaft;The second sleeve is equipped with the rotor for driving the output shaft rotation, and corresponding with the rotor fixed Son;The motor further includes the connection ring for connecting the first sleeve and the second sleeve;The connection ring be provided with The air duct air inlet face and the thermal vias being connected to the second sleeve inside.
Preferably, guide vane described in multiple groups is circularly and evenly distributed in the air duct;The thermal vias is provided with It is multiple, and multiple thermal vias are circularly and evenly distributed in the connection ring;The air duct, the first sleeve and Guide vane described in adjacent two groups, four surround air duct jointly;The thermal vias and the air duct face.
Preferably, the guide vane is fixed by 3rd sleeve and the first sleeve;The internal diameter of the 3rd sleeve It is adapted to the outer diameter of the first sleeve;The guide vane is provided with and described second away from one end of the air duct air inlet First locating slot of sleeve adaptation.
Preferably, the stator includes the stator core fixed with the second sleeve, and be threaded through respectively it is described fixed The upper insulation wire frame and lower insulation wire frame at sub- iron core both ends;The upper insulation wire frame and the lower insulation wire frame with the stator Iron core is fixed;Coil is wound on the upper insulation wire frame and the lower insulation wire frame;The stator further includes being fixed on institute State insulation partition of the wire frame towards described first sleeve one end;The partition is bonded with the connection ring.
Preferably, the thermal vias includes and the hole A of the stator core face and the upper insulation wire frame face Hole B, and the hole C of connection the hole A and the hole B;The hole C and the partition face;The periphery of the stator core It is provided with positioning protrusion;The second sleeve is provided with the second locating slot corresponding with the positioning protrusion;
The motor further includes the circuit board for being fixed on the lower insulation wire frame and deviating from described stator core one end, and The circuit board is fixed on away from the PCB connector of the lower insulation wire frame side;The circuit board and PCB connector electricity Connection;The lower insulation wire frame is provided with the identical support column of height and positive stop lug boss away from described stator core one end;It is described Positive stop lug boss is provided with positioning column away from described lower insulation wire frame one end;The circuit board is provided with corresponding with the positioning column Positioning through hole.
Preferably, the high flow rate axial flow blower further includes the multiple groups heat dissipation being circularly and evenly distributed around the second sleeve Piece;The air outlet of the cooling fin towards the air duct extends, and fixes with the second sleeve periphery;It is dissipated described in two adjacent groups There are gaps between backing;The side of the connection ring towards the first sleeve is provided with fillet.
Preferably, bearing is arranged on the output shaft;The outer ring of the bearing is fixed with the first sleeve inner wall.
Preferably, along the direction close to the air duct air outlet, the thickness of the guide vane is gradually become smaller;The impeller Including the wheel disc being connect with the motor, and the multiple groups moving blade being circularly and evenly distributed around the wheel disc;The wheel Disk is provided with chamfering away from one end of the motor;The guide vane always organizes number and the moving blade always organizes number, the two It is odd number.
On the other hand, a kind of blowing device is provided, based on any high flow rate axial flow blower of claim 1-9, It is characterised in that it includes the high flow rate axial flow blower.
The beneficial effects of the present invention are: when work, the rotation of motor impeller, multiple groups guide vane is in air duct Portion space is split to form multiple duct, is avoided air-flow and is generated vortex in air duct, increases air-out flow;Meanwhile it leading The vertical section for flowing blade is aerofoil profile, helps to reduce windage, air-flow velocity is improved, to improve outlet air efficiency.Further, due to Windage reduces, and alleviates the work load of motor, is conducive to extend the service life of blower entirety.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below in conjunction with attached drawing and reality Applying example, the invention will be further described, and the accompanying drawings in the following description is only section Example of the invention, for this field For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other accompanying drawings:
Fig. 1 is a kind of high flow rate axial flow blower overall structure diagram for low windage that the embodiment of the present invention one provides;
Fig. 2 is high flow rate axial flow blower explosive view (air duct, connector sleeve for a kind of low windage that the embodiment of the present invention one provides Cylinder and stator core are in cutting state);
Fig. 3 is that a kind of high flow rate axial flow blower structural schematic diagram for low windage that the embodiment of the present invention one provides (conceals Impeller);
Fig. 4 is enlarged drawing at A in Fig. 3;
Fig. 5 is enlarged drawing at B in Fig. 3.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of the embodiment of the present invention clearer, implement below in conjunction with the present invention Technical solution in example carries out clear, complete description, it is clear that and described embodiment is section Example of the invention, and It is not all of embodiment.Based on the embodiment of the present invention, those of ordinary skill in the art are not before making the creative labor Every other embodiment obtained is put, protection scope of the present invention is belonged to.
Embodiment one
The embodiment of the invention provides a kind of high flow rate axial flow blowers of low windage, as shown in Figure 1, simultaneously extremely refering to Fig. 2 Fig. 5;Including air duct 1;It is provided with impeller 10 corresponding with its air inlet 180 in air duct 1, and drives the electronic of the rotation of impeller 10 Machine 11;The multiple groups guide vane 12 being circumferentially distributed around motor 11 is additionally provided in air duct 1;12 side of guide vane and air duct 1 inner wall is fixed, and the other side and motor 11 are fixed;The air outlet 181 of guide vane 12 towards air duct 1 extends, and guide vane 12 vertical section is aerofoil profile, and when work, the rotation of 11 impeller 10 of motor, multiple groups guide vane 12 is empty to the inside of air duct 1 Between be split to form multiple duct, avoid air-flow and generate vortex in air duct 1, increase air-out flow;Meanwhile water conservancy diversion leaf The vertical section of piece 12 is aerofoil profile, helps to reduce windage, air-flow velocity is improved, to improve outlet air efficiency.Further, due to wind Resistance reduces, and alleviates the work load of motor 11, is conducive to extend the service life of blower entirety.
As shown in Fig. 2, motor 11 includes the connection sleeve 13 being coaxially disposed with air duct 1;Connection sleeve 13 includes and leads The fixed first sleeve 14 of blade 12 is flowed, and deviates from the second sleeve 15 of 180 one end of air duct air inlet positioned at first sleeve 14; 15 internal diameter of second sleeve is greater than 14 outer diameter of first sleeve;First sleeve 14 is rotatably connected to the output shaft of the rotation of impeller 10 16;Second sleeve 15 is equipped with the rotor 17 for driving output shaft 16 to rotate, and stator 18 corresponding with rotor 17, thus rotor 17 and stator 18 have corresponding installation space, convenient for installment work is rapidly completed;Motor 11 further includes connection first sleeve 14 With the connection ring 19 of second sleeve 15;Connection ring 19 be provided with 180 face of air duct air inlet and with connect inside second sleeve 15 Logical thermal vias 182, when impeller 10 rotates, ambient atmos enter air duct 1 and form air-flow, are to be in since connection sleeve 13 is whole T shape, therefore when air-flow flows in air duct 1, it can be entered inside second sleeve 15 by thermal vias 182, be effectively facilitated Air flowing inside motor 11, reduces the thermal losses and operating temperature of motor 11, is conducive to extend motor 11 service life.
As shown in figure 3, multiple groups guide vane 12 is circularly and evenly distributed in air duct 1, integrally it is more uniformly stressed;Heat dissipation Through-hole 182 is provided with multiple, and multiple thermal vias 182 are circularly and evenly distributed in connection ring 19;Air duct 1, first sleeve 14 and two groups of adjacent guide vanes 12, four surround air duct 183 jointly;Thermal vias 182 and 183 face of air duct are reduced Air-flow enters the obstruction of thermal vias 182, rapidly enters thermal vias 182 convenient for air-flow and radiates.
As shown in Fig. 2, guide vane 12 is fixed by 3rd sleeve 110 and first sleeve 14, it is preferred that guide vane 12 It is fixed with 3rd sleeve 110 by way of welding or being bonded with first sleeve 14;The internal diameter and first set of 3rd sleeve 110 The outer diameter adaptation of cylinder 14 is easily installed and has certain contraposition effect;Guide vane 12 is set away from one end of air duct air inlet 180 It is equipped with the first locating slot 184 being adapted to second sleeve 15, convenient for contraposition work is rapidly completed.
As shown in Fig. 2, stator 18 includes the stator core 111 fixed with second sleeve 15, and it is threaded through stator respectively The upper insulation wire frame 112 at 111 both ends of iron core and lower insulation wire frame 113;Upper insulation wire frame 112 and lower insulation wire frame 113 are and fixed Sub- iron core 111 is fixed;Coil 114 is wound on upper insulation wire frame 112 and lower insulation wire frame 113;Stator 18 further includes fixing In upper insulation partition 115 of the wire frame 112 towards 14 one end of first sleeve;Partition 115 is bonded with connection ring 19, passes through partition 115 The depth that stator 18 is inserted into second sleeve 15 is limited, thus when welding to batch blower, it is ensured that the batch blower Consistency.
As shown in Figure 2 and Figure 4, thermal vias 182 includes and the hole A185 of 111 face of stator core and upper insulation wire frame The hole B186 and intercommunicating pore A185 of 112 faces and the hole C of hole B186;Hole C and 115 face of partition;Outside stator core 111 Disc is provided with positioning protrusion 116;Second sleeve 15 is provided with second locating slot corresponding with positioning protrusion 116, so that stator 18 can be accurately positioned with rotor 17, ensure the precision of assembly, so that there is uniform air gap between rotor and stator, avoid partially Motor performance caused by the heart is unstable;
Motor 11 further includes the circuit board 117 for being fixed on lower insulation wire frame 113 and deviating from 111 one end of stator core, and Circuit board 117 is fixed on away from the PCB connector 118 of lower insulation 113 side of wire frame;118 electricity of circuit board 117 and PCB connector Connection;Lower insulation wire frame 113 is provided with the identical support column 125 of height and positive stop lug boss 119 away from 111 one end of stator core; Positive stop lug boss 119 is provided with positioning column 120 away from lower 113 one end of insulation wire frame;Circuit board 117 is provided with right with positioning column 120 When installation, circuit board 117 can be rapidly completed by the cooperation of positioning column 120 and positioning through hole 189 in the positioning through hole 189 answered Positioning work, accurate positioning;Meanwhile the mounting height of circuit board 117 is determined by support column 125 and positive stop lug boss 119, it is right When batch blower is assembled or is welded, it is ensured that the consistency of the batch blower is easy to implement automated production operation;Together When but also circuit board 117 and rotor 17 keep certain distance, avoid the rotation to rotor 17 from causing to interfere.
As shown in figure 5, high flow rate axial flow blower further includes the multiple groups cooling fin being circularly and evenly distributed around second sleeve 15 121;The air outlet 181 of cooling fin 121 towards air duct extends, and fixes with 15 periphery of second sleeve, thus on stator core 111 Heat can be transmitted on cooling fin 121, carry out rapid cooling;There are gaps 1810 between two adjacent groups cooling fin 121;Connection The side of ring 19 towards first sleeve 14 is provided with fillet 1811, and air-flow can flow to gap 1810 along fillet 1811, take away Heat on cooling fin 121.
As shown in figure 3, being arranged with bearing 122 on output shaft 16;The outer ring of bearing 122 is fixed with 14 inner wall of first sleeve, After air-flow enters second sleeve 15, heat exchange can be carried out with bearing 122, realize effective heat dissipation to bearing 122.
As shown in Figures 2 and 3, along the direction close to air duct air outlet 181, the thickness of guide vane 12 is gradually become smaller;Leaf Wheel 10 includes the wheel disc 123 connecting with motor 11, and the multiple groups moving blade 124 being circularly and evenly distributed around wheel disc 123, Preferably, wheel disc 123 is frustum type, and fairshaped shape is conducive to reduce the resistance that air enters air duct 1;Wheel disc 123 deviates from One end of motor is provided with chamfering 1812;Always group number and moving blade 124 always organize number to guide vane 12, and the two is odd number, If can not only make the balance of impeller 10 itself be difficult to adjust if blade quantity is even slice and is circularly and evenly distributed, and And be easy that impeller 10 is made to generate more resonance when running at high speed, it can not bear what resonance generated for a long time so as to cause blade Therefore blade, is always organized number and is arranged to odd number by fatigue the case where finally fracture, blower entirety is steady when can improve operating It is qualitative.Preferably, guide vane is 7 groups, and moving blade is 11 groups, as be overlapped as possible between blade and blade, so that each rotation Interlobate gap is smaller, to improve catch wind efficiency, increase air inlet flow.Preferably, the vertical section of moving blade 124 is the wing Shape advantageously reduces windage, increases air flow rate;Meanwhile reduce blower work in different cross section position generate cavitation with Vortex, reduces the cavitation corrosion and eddy-current loss of blower.
Embodiment two
The embodiment of the invention provides a kind of blowing device, which includes the high flow rate axis stream wind in embodiment one Machine.In the embodiment of the present invention, blowing device includes but are not limited to hair dryer.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description, And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.

Claims (10)

1. a kind of high flow rate axial flow blower of low windage, including air duct;Leaf corresponding with its air inlet is provided in the air duct Wheel, and the motor of the driving wheel rotation;It is characterized in that, being additionally provided in the air duct around the motor in circle The multiple groups guide vane of week distribution;The guide vane side is fixed with the air duct inner wall, and the other side and the motor It is fixed;The air outlet of the guide vane towards the air duct extends, and the vertical section of the guide vane is aerofoil profile.
2. high flow rate axial flow blower according to claim 1, which is characterized in that the motor includes same with the air duct The connection sleeve of axis setting;The connection sleeve includes the first sleeve fixed with the guide vane, and is located at described the One sleeve deviates from the second sleeve of air duct air inlet one end;The second sleeve internal diameter is greater than the first sleeve outer diameter; The first sleeve is rotatably connected to the output shaft for driving the wheel rotation;The second sleeve, which is equipped with, drives the output The rotor of axis rotation, and stator corresponding with the rotor;The motor further includes connecting the first sleeve and described The connection ring of second sleeve;The connection ring is provided with the air duct air inlet face and is connected to the second sleeve inside Thermal vias.
3. high flow rate axial flow blower according to claim 2, which is characterized in that guide vane described in multiple groups is in the air duct Inside it is circularly and evenly distributed;The thermal vias be provided with it is multiple, and multiple thermal vias in the connection ring in circle Week is uniformly distributed;Guide vane described in the air duct, the first sleeve and adjacent two groups, four surround air duct jointly; The thermal vias and the air duct face.
4. high flow rate axial flow blower according to claim 2, which is characterized in that the guide vane by 3rd sleeve with The first sleeve is fixed;The internal diameter of the 3rd sleeve is adapted to the outer diameter of the first sleeve;The guide vane deviates from One end of the air duct air inlet is provided with the first locating slot being adapted to the second sleeve.
5. high flow rate axial flow blower according to claim 2, which is characterized in that the stator includes and the second sleeve Fixed stator core, and it is threaded through the upper insulation wire frame and lower insulation wire frame at the stator core both ends respectively;On described Insulation wire frame and the lower insulation wire frame are fixed with the stator core;On the upper insulation wire frame and the lower insulation wire frame It is wound with coil;The stator further includes being fixed on the upper insulation partition of the wire frame towards described first sleeve one end;Institute Partition is stated to be bonded with the connection ring.
6. high flow rate axial flow blower according to claim 5, which is characterized in that the thermal vias includes and the stator The hole A of iron core face, the hole B with the upper insulation wire frame face, and the hole C of connection the hole A and the hole B;The hole C With the partition face;The periphery of the stator core is provided with positioning protrusion;The second sleeve be provided with it is described fixed Corresponding second locating slot of position protrusion;
The motor further includes the circuit board for being fixed on the lower insulation wire frame and deviating from described stator core one end, and fixed In the circuit board away from the PCB connector of the lower insulation wire frame side;The circuit board is electrically connected with the PCB connector It connects;The lower insulation wire frame is provided with the identical support column of height and positive stop lug boss away from described stator core one end;The limit Position boss is provided with positioning column away from described lower insulation wire frame one end;The circuit board is provided with corresponding with the positioning column fixed Position through-hole.
7. high flow rate axial flow blower according to claim 5, which is characterized in that the high flow rate axial flow blower further include around The multiple groups cooling fin that the second sleeve is circularly and evenly distributed;The air outlet of the cooling fin towards the air duct extends, and with The second sleeve periphery is fixed;There are gaps between cooling fin described in two adjacent groups;The connection ring is towards the first set The side of cylinder is provided with fillet.
8. high flow rate axial flow blower according to claim 2, which is characterized in that be arranged with bearing on the output shaft;Institute The outer ring and the first sleeve inner wall for stating bearing are fixed.
9. high flow rate axial flow blower according to claim 1, which is characterized in that along the side close to the air duct air outlet To the thickness of the guide vane gradually becomes smaller;The impeller includes the wheel disc connecting with the motor, and around the wheel The multiple groups moving blade that disk is circularly and evenly distributed;The wheel disc is provided with chamfering away from one end of the motor;It is described to lead Stream blade always organizes number and the moving blade always organizes number, and the two is odd number.
10. a kind of blowing device, based on any high flow rate axial flow blower of claim 1-9, which is characterized in that including institute State high flow rate axial flow blower.
CN201910672729.6A 2019-07-24 2019-07-24 A kind of the high flow rate axial flow blower and blowing device of low windage Pending CN110425161A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN112177977A (en) * 2020-11-12 2021-01-05 江苏优格曼航空科技有限公司 Low-wind-resistance impeller for magnetic suspension fan and preparation method thereof
WO2022096016A1 (en) * 2020-11-09 2022-05-12 宁波富佳实业股份有限公司 Air guide structure and fan
US11873824B2 (en) 2021-02-05 2024-01-16 Techtronic Cordless Gp Blower

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CN112177977A (en) * 2020-11-12 2021-01-05 江苏优格曼航空科技有限公司 Low-wind-resistance impeller for magnetic suspension fan and preparation method thereof
US11873824B2 (en) 2021-02-05 2024-01-16 Techtronic Cordless Gp Blower

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