CN103659163B - Method for manufacturing fan wheel - Google Patents

Method for manufacturing fan wheel Download PDF

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Publication number
CN103659163B
CN103659163B CN201210323556.5A CN201210323556A CN103659163B CN 103659163 B CN103659163 B CN 103659163B CN 201210323556 A CN201210323556 A CN 201210323556A CN 103659163 B CN103659163 B CN 103659163B
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CN
China
Prior art keywords
sealing piece
rotating shaft
magnet sealing
wheel hub
magnet
Prior art date
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Application number
CN201210323556.5A
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Chinese (zh)
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CN103659163A (en
Inventor
洪银树
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Sunonwealth Electric Machine Industry Co Ltd
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Sunonwealth Electric Machine Industry Co Ltd
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Publication of CN103659163A publication Critical patent/CN103659163A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • 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
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers

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

Abstract

A method for manufacturing a fan wheel comprises the following steps: preparing a magnetic sealing piece with a central shaft hole; the magnetic sealing piece is placed in a forming die and is positioned, a hub with a plurality of blades is formed in an injection molding mode, and the hub is combined with the magnetic sealing piece; and preparing a rotating shaft with a combination end, assembling the combination end of the rotating shaft in the central shaft hole of the magnetic sealing piece, and welding and fixing the combination end of the rotating shaft and the central shaft hole of the magnetic sealing piece by using a welding mode. Therefore, the damage of repeated scratching of the peripheral surface of the rotating shaft is effectively avoided, the rotating noise of the motor can be prevented, the service life of the motor is prolonged, and the rotating shaft is ensured to have better center positioning accuracy.

Description

The manufacture method of impeller
Technical field
The present invention is on a kind of manufacture method of impeller, especially a kind of manufacture method for being thinned impeller.
Background technology
Existing radiator fan substantially includes a fan frame, a stator, an impeller and a permanent magnet.The stator is arranged at the fan The gas channel that inframe side is formed;The impeller is rotatably engaged the stator, and the permanent magnet is incorporated into the pre- of the impeller Position is determined, to form air gap between the stator, so that the stator can drive the impeller to rotate start.
Also, wherein the impeller mainly includes a wheel hub, a magnet sealing piece and a rotating shaft.The wheel hub is provided with several blades, is used to Driving gas stream is radiated;The magnet sealing piece is arranged on the inside of the wheel hub, and the effect of magnetic is sealed to provide the permanent magnet;The rotating shaft The wheel hub is then combined, so that the impeller is rotatably engaged the stator.
The manufacture method of existing impeller be generally in advance by the magnet sealing piece and the rotating shaft and meanwhile insert a molding have in, then The wheel hub with several blades is molded with injection molding method using the mould, the wheel hub one can be coated simultaneously The magnet sealing piece and the rotating shaft, so complete the impeller be manufactured operation.
However, because electronic product now is universal towards the direction such as miniaturization trend R & D design;Wherein it is installed in each In formula electronic product, to provide predetermined heat dissipation effect existing radiator fan and its impeller, similarly must matching design be More compactization, can smoothly be applied to the electronic installation or electronic instrument of miniaturization;The simply manufacture of foregoing existing impeller The made impeller completed of forming method, is that must be molded in the predetermined position of the wheel hub just like the structure such as rib and crown of roll ring, One end of the rotating shaft can be coated to firm, and ensure that the rotating shaft will not fall off, therefore, and can not effectively reduce the impeller Overall axial height, and ejection shaping die must also design complex, and be unfavorable for the impeller being designed as more frivolous Short and smallization.
Therefore, such as China's application the 201010273456.7th《Fan and its manufacture method》Patent of invention, is to disclose Another manufacture method of existing impeller.It please coordinate shown in reference picture 1, the manufacture method of another existing impeller is mainly elder generation One rotating shaft 91 and a metal shell 92 are carried out after laser welding, then the rotating shaft 91 and the metal shell 92 that combination will have been completed Structure inserts a molding tool(Do not illustrate), and molded using the mould with injection molding method with several blades 931 wheel hub 93, makes the wheel hub 93 only integrally coat the metal shell 92, so complete the impeller 9 be manufactured operation.
Whereby, the made impeller 9 completed of the manufacture method of another existing impeller, its wheel hub 93 and the rotating shaft 91 1 The binding site at end need not then form such as rib or crown of roll ring structure, and the also design of the relative simplicity mould, and can Convenient electronic installation or electronic instrument applied to miniaturization.
However, the problem of manufacture method of another existing impeller still has as described below.Wherein when the rotating shaft 91 with , so can be smoothly complete when the metal shell 92 carries out laser welding, it is necessary to the outer surface of the rotating shaft 91 is positioned using tool Into the rotating shaft 91 and the combination of the metal shell 92, and ensure the centralized positioning precision of the rotating shaft 91;Combination ought have been completed again The rotating shaft 91 and the structure of metal shell 92 be intended to insert the mould to mold during the wheel hub 93, then must equally utilize The rotating shaft 91 is positioned in the mould;In other words, the manufacture method of the existing impeller at least this turn of necessary resetting Axle 91 is twice, it is not only possible to causes the outer surface of the rotating shaft 91 to repeat scratch and is damaged, it is easier to is positioned at this in the rotating shaft 91 During mould, cause the centralized positioning precision of the rotating shaft 91 to deviate again, the impeller 9 is applied to radiator fan When, the shortcomings such as Rotation Noise and reduction motor life are easily produced, therefore, offer one kind is be provided and is preferably thinned impeller Manufacture method.
The content of the invention
The main object of the present invention is for slim the problem of improveing the manufacture method of foregoing each existing impeller there is provided one kind Change the manufacture method of impeller, the manufacture method repeats scratch without resetting rotating shaft with the outer surface for being prevented effectively from rotating shaft Impaired situation.
An of the invention purpose is to provide a kind of manufacture method of impeller, turn of the made impeller completed of the manufacture method Axle is effectively reduced centralized positioning precision skew problem, to provide good running effect.
To reach aforementioned invention purpose, the present invention with technological means include:
A kind of manufacture method of impeller, its step is included:Prepare the magnet sealing piece with central shaft hole;The magnet sealing piece is put Enter and be positioned in a molding tool, the wheel hub with several blades is molded with injection molding method, makes the wheel hub and the envelope Magnetic part is combined;And prepare the rotating shaft with binding end, then the binding end of the rotating shaft is assembled in the central shaft of the magnet sealing piece The binding end of the rotating shaft and the central shaft hole of the magnet sealing piece, are welded and fixed by hole using welding manner.
The manufacture method of impeller of the present invention preferably processes to form several wear prior to the magnet sealing piece adjacent to the position of outer peripheral edge in advance Hole, and after the wheel hub is molded with injection molding method, make the wheel hub integrally several perforation of the cladding with reference to the magnet sealing piece.
The manufacture method of impeller of the present invention preferably processes to form a bending prior to the magnet sealing piece adjacent to the position of outer peripheral edge in advance Section, after the wheel hub is molded with injection molding method, makes the wheel hub integrally bending segment of the cladding with reference to the magnet sealing piece.
The manufacture method of impeller of the present invention preferably processes to form a sawtooth prior to the magnet sealing piece adjacent to the position of outer peripheral edge in advance Shape periphery, and after the wheel hub is molded with injection molding method, make the wheel hub integrally zigzag of the cladding with reference to the magnet sealing piece Periphery.
The manufacture method of impeller of the present invention is preferably after the wheel hub integrally coats and combines the magnet sealing piece, in the magnet sealing piece Arbor hole forms an exposed section between several perforation, bending segment or serrated peripheral edges.
The manufacture method of impeller of the present invention preferably when the magnet sealing piece is prepared, has bulge loop from the central shaft hole periphery Magnet sealing piece, the bulge loop and the rotating shaft to be welded.
The manufacture method of impeller of the present invention by the binding end of the rotating shaft after the central shaft hole of the magnet sealing piece is assembled in, preferably It is to be welded and fixed the binding end of the rotating shaft and the central shaft hole of the magnet sealing piece using laser welding.
Brief description of the drawings
Fig. 1:The perspective exploded view of the manufacture method of existing radiator fan.
Fig. 2:The manufacture method of radiator fan of the present invention is in the schematic diagram for preparing magnet sealing piece step.
Fig. 3:The manufacture method of radiator fan of the present invention is in the schematic diagram for combining magnet sealing piece and wheel hub.
Fig. 4:The manufacture method of radiator fan of the present invention is in the schematic diagram after assembling rotating shaft.
Fig. 5:Another embodiment schematic diagram for the magnet sealing piece that the manufacture method of radiator fan of the present invention is prepared.
【Main element symbol description】
(present invention)
1 magnet sealing piece
The bending segment of 11 central shaft hole 12
13 14 bulge loops of perforation
2 wheel hubs
21 blades
3 rotating shafts
31 binding ends
The exposed sections of E
(prior art)
9 impellers
The metal shell of 91 rotating shaft 92
The blade of 93 wheel hub 931.
Embodiment
For above and other objects, features and advantages of the invention can be become apparent, it is cited below particularly it is of the invention compared with Good embodiment, and coordinate institute's accompanying drawings, it is described in detail below:
The manufacture method of impeller of the present invention comprises at least following steps, wherein:
It refer to shown in Fig. 2, in present pre-ferred embodiments, prepare the magnet sealing piece 1 with central shaft hole 11 first, should Magnet sealing piece 1 can select cap body or ring bodies that sheet metal is made etc., or also can select and can provide permanent magnet envelope magnetic Various type bodies made by the material of effect, in preferred embodiment as depicted, the magnet sealing piece 1 is thin shape metal cap lid; Process to form several perforation, serrated peripheral edges or bending segment also, the magnet sealing piece 1 is preferably the pre- position prior to neighbouring outer peripheral edge Deng, in preferred embodiment as depicted, the magnet sealing piece 1 adjacent to outer peripheral edge position simultaneously process formed a bending segment 12 and number Individual perforation 13, for it is follow-up make one wheel hub 2 of shaping when, be easy to make the magnet sealing piece 1 and the wheel hub 2 therebetween more closely It is joined integrally(Join follow-up explanation in detail).
It refer to shown in Fig. 3, be to insert the magnet sealing piece 1 to be positioned at a molding tool in present pre-ferred embodiments(Not Illustrate)In, recycle the mould to mold the wheel hub 2 with several blades 21 with injection molding method, the wheel hub 2 is projected It is shaped to after predetermined shape, one cladding can combines the magnet sealing piece 1 simultaneously, make the wheel hub 2 and both magnet sealing pieces 1 closely With reference to, wherein making plastic hub using ejection shaping die, and ensure the technological means of plastic hub magnet sealing piece joined integrally, Not repeated it will be understood by those skilled in the art that holding herein.
Also, in preferred embodiment as depicted, processed adjacent to the position of outer peripheral edge when the magnet sealing piece 1 and be formed with this simultaneously When bending segment 12 and several perforation 13, the wheel hub 2 preferably only one cladding combines the bending segment 12 of the magnet sealing piece 1 and several perforation 13, to make the central shaft hole 11 of the magnet sealing piece 1 form an exposed section E between the bending segment 12 and several perforation 13, enter And effectively reduce the axial height of impeller of the present invention and reduce the usage amount of plastics, and simultaneously simultaneous can ensure that the wheel hub 2 and the envelope Magnetic part 1, which has therebetween, more closely combines effect;In addition, the magnet sealing piece 1 also only individually can process to form the bending segment 12nd, the one of which of several perforation 13 or serrated peripheral edges, or be any combination of wherein three kinds Conception of Structure Design, it is this Art personnel are appreciated that appearance is not repeated.
It refer to shown in Fig. 4, be to prepare the rotating shaft 3 with binding end 31, by the rotating shaft in present pre-ferred embodiments 3 binding end 31 plugs the central shaft hole 11 for being assembled in the magnet sealing piece 1, and utilizes welding manner by the binding end 31 of the rotating shaft 3 It is welded and fixed with the binding site of the central shaft hole 11 of the magnet sealing piece 1, for example:Laser welding(Laser Welding)Or Spot welding etc.;Particularly when using laser welding(Laser Welding)When, due to laser welding(Laser Welding)Have Energy is concentrated and welds the characteristics such as precision height, therefore, can ensure completely to be closely welded and fixed between the rotating shaft 3 and the magnet sealing piece 1; Also, aforementioned laser is welded(Laser Welding)Actual welding operating type and associated operating conditions etc., be art technology Personnel are appreciated that appearance is not repeated.
Referring again to shown in Fig. 5, foregoing when preparing the magnet sealing piece 1 with central shaft hole 11, the magnet sealing piece 1 is preferably Can select the periphery of central shaft hole 11 has the metal sheet of bulge loop 14;Whereby, when being welded and fixed the rotating shaft 3 and the magnet sealing piece 1 When, directly the bulge loop 14 can be welded with the rotating shaft 3, with the fixed combinating surface being effectively increased between the rotating shaft 3 and the magnet sealing piece 1 Product, and then preferably fixed effect is provided.
By the manufacture method of the impeller of the invention described above better embodiment, the rotating shaft 3 utilizes welding and the magnet sealing piece 1 Combination is tightly fastened, and the rotating shaft 3 need not be combined with the wheel hub 2 cladding, therefore, the wheel hub 2 need not increase such as rib and crown of roll The one end of the structures such as ring to coat the rotating shaft 3, whereby, coordinates the design that the magnet sealing piece 1 can be sheet metal, you can effectively Reduce the axial height of the impeller made by the present invention, so as to which the impeller is designed as into compactization;In addition, when the magnet sealing piece 1 central shaft hole 11 to the bending segment 12 and it is several perforation 13 between be preferably formed with the exposed section E when, then can be further The axial height of impeller of the present invention is effectively reduced, to reach more compact advantage.
Furthermore, the manufacture method of the impeller of better embodiment of the present invention is that prior be molded using injection molding method should After magnet sealing piece 1 is closely combined with the wheel hub 2, welding manner is utilized, the rotating shaft 3 is fixedly welded on the magnet sealing piece 1 Central shaft hole 11;Therefore, in the correlation step flow of the manufacture method of impeller of the present invention, it is only necessary to welded by the rotating shaft 3 The outer surface of the rotating shaft 3 is positioned when being fixed on the central shaft hole 11 of the magnet sealing piece 1, compared to existing fan as disclosed in the system of fig. 1 The manufacture method of wheel must resetting rotating shaft 91 in different step, cause the outer surface of rotating shaft 91 repeat scratch by Damage, then the situation that the outer surface scratch of the rotating shaft 3 can be more damaged by the present invention is down to relatively low;In addition, the system of impeller of the present invention The method of making be in completing after the combination of the magnet sealing piece 1 and the wheel hub 2, then the row progress rotating shaft 3 welding assembly operation, therefore, The centralized positioning operation of the rotating shaft 3 more can be conveniently carried out, effectively to lift the centralized positioning precision of the rotating shaft 3.
The manufacture method of radiator fan of the present invention can be without the resetting rotating shaft 3, to be prevented effectively from the periphery of rotating shaft 3 Surface repeats scratch and is damaged, and the rotating shaft 3 is reached lifting motor with the generation of effective noise reduction function when being applied to radiator fan Service life and the effect for assembling quality.
The manufacture method of radiator fan of the present invention can effectively carry out the centralized positioning operation of the rotating shaft 3, to prevent this Rotating shaft 3 has centralized positioning skew problem, the rotating shaft 3 is produced more preferably spin balancing when being applied to radiator fan, Reach effect of lifting operating quality.

Claims (6)

1. a kind of manufacture method of impeller, it is characterised in that its step includes:
Prepare the magnet sealing piece with central shaft hole;
The magnet sealing piece is inserted and is positioned in mould, the wheel hub with several blades is molded with injection molding method, And the wheel hub is combined with the magnet sealing piece;And
Prepare the rotating shaft with binding end, then the binding end of the rotating shaft is assembled in the central shaft hole of the magnet sealing piece, weldering is utilized Mode is connect to be welded and fixed the binding end of the rotating shaft and the central shaft hole of the magnet sealing piece;
Wherein, the pre- position prior to neighbouring outer peripheral edge of the magnet sealing piece processes to form bending segment, and the rotating shaft has and the binding end phase To free end, in the axial direction of the rotating shaft, the magnet sealing piece has the free end of outer surface and the rotating shaft at a distance of maximum Axial spacing, forms a portion of stratum, the wheel is molded with injection molding method between the outer rim of the outer surface and the bending segment After hub, the wheel hub integrally coats bending segment and the portion of stratum with reference to the magnet sealing piece, and the end face of the closest rotating shaft of the wheel hub does not connect Connect the outer surface of the magnet sealing piece, and the wheel hub is not protruded out beyond the outer surface, the magnet sealing piece in the central shaft hole to the wheel hub most Exposed section is formed between the end face of the neighbouring rotating shaft.
2. a kind of manufacture method of impeller, it is characterised in that its step includes:
Prepare the magnet sealing piece with central shaft hole;
The magnet sealing piece is inserted and is positioned in mould, the wheel hub with several blades is molded with injection molding method, And the wheel hub is combined with the magnet sealing piece;And
Prepare the rotating shaft with binding end, then the binding end of the rotating shaft is assembled in the central shaft hole of the magnet sealing piece, weldering is utilized Mode is connect to be welded and fixed the binding end of the rotating shaft and the central shaft hole of the magnet sealing piece;
Wherein, the pre- position prior to neighbouring outer peripheral edge of the magnet sealing piece processes to form serrated peripheral edges, and the rotating shaft has and the combination The relative free end in end, in the axial direction of the rotating shaft, the magnet sealing piece has an outer surface and the free end of the rotating shaft at a distance of most Big axial spacing, forms a portion of stratum between the outer rim of the outer surface and the serrated peripheral edges, with injection molding method into Type goes out after the wheel hub, and the wheel hub integrally coats serrated peripheral edges and the portion of stratum with reference to the magnet sealing piece, this closest turn of the wheel hub The end face of axle is not connected with the outer surface of the magnet sealing piece, and the wheel hub is not protruded out beyond the outer surface, and the magnet sealing piece is in the central shaft Hole forms exposed section between the end face of the closest rotating shaft of the wheel hub.
3. the manufacture method of impeller as claimed in claim 1 or 2, it is characterised in that the magnet sealing piece is pre- prior to neighbouring periphery The position of edge processes to form several perforation, and after the wheel hub is molded with injection molding method, makes the wheel hub integrally cladding knot Close several perforation of the magnet sealing piece.
4. the manufacture method of impeller as claimed in claim 3, it is characterised in that integrally cladding combines the magnet sealing piece in the wheel hub Afterwards, the central shaft hole of the magnet sealing piece is to forming exposed section between several perforation.
5. the manufacture method of impeller as claimed in claim 1 or 2, it is characterised in that when the magnet sealing piece is prepared, is to select to be somebody's turn to do Central shaft hole periphery has the magnet sealing piece of bulge loop, the bulge loop and the rotating shaft to be welded.
6. the manufacture method of impeller as claimed in claim 1 or 2, it is characterised in that be assembled in by the binding end of the rotating shaft After the central shaft hole of the magnet sealing piece, the binding end of the rotating shaft and the central shaft hole of the magnet sealing piece are welded solid using laser welding It is fixed.
CN201210323556.5A 2012-08-28 2012-09-04 Method for manufacturing fan wheel Active CN103659163B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW101131183A TWI533991B (en) 2012-08-28 2012-08-28 Impeller manufacturing method
TW101131183 2012-08-28

Publications (2)

Publication Number Publication Date
CN103659163A CN103659163A (en) 2014-03-26
CN103659163B true CN103659163B (en) 2017-09-05

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Family Applications (1)

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CN (1) CN103659163B (en)
TW (1) TWI533991B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106089763A (en) * 2016-06-23 2016-11-09 珠海格力电器股份有限公司 Fan blade assembly and forming method thereof, fan and air conditioner
CN106907349A (en) * 2017-03-09 2017-06-30 深圳兴奇宏科技有限公司 Fan blade structure
US10323738B2 (en) * 2017-04-25 2019-06-18 Gkn Automotive Limited Multiple material solenoid actuator plunger
TWI680627B (en) * 2018-08-14 2019-12-21 大陸商佛山市建準電子有限公司 Rotor of motor
CN111531721B (en) * 2020-05-09 2021-09-10 广东智胜石材有限公司 Stone cutting device
CN117329162A (en) * 2022-12-14 2024-01-02 荣耀终端有限公司 Impeller, fan and electronic equipment

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JP2001178087A (en) * 1999-12-03 2001-06-29 Jianzhun Electric Mach Ind Co Ltd Rotor of motor and manufacturing method therefor
CN1855669A (en) * 2005-04-27 2006-11-01 建准电机工业股份有限公司 Motor rotor structure
TWI322228B (en) * 2007-03-06 2010-03-21 Delta Electronics Inc Fan
CN201228662Y (en) * 2008-07-18 2009-04-29 元山科技工业股份有限公司 Impeller device
US20100122459A1 (en) * 2008-11-17 2010-05-20 General Electric Company Method of making wind turbine blade
WO2011143064A2 (en) * 2010-05-10 2011-11-17 Borgwarner Inc. Fan with overmolded blades
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CN202260696U (en) * 2011-10-12 2012-05-30 建准电机工业股份有限公司 Motor rotor

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Publication number Publication date
TWI533991B (en) 2016-05-21
TW201408462A (en) 2014-03-01
CN103659163A (en) 2014-03-26

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