CN103573698A - Horizontal convection fan and fan wheel thereof - Google Patents
Horizontal convection fan and fan wheel thereof Download PDFInfo
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- CN103573698A CN103573698A CN201210248593.4A CN201210248593A CN103573698A CN 103573698 A CN103573698 A CN 103573698A CN 201210248593 A CN201210248593 A CN 201210248593A CN 103573698 A CN103573698 A CN 103573698A
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- plane
- metal substrate
- advection
- impeller
- fan
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- 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
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0653—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the motor having a plane air gap, e.g. disc-type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A fan wheel of a horizontal convection fan comprises a metal base plate, a central shaft and a plurality of plastic blades. The metal base plate is provided with the shaft connecting portion and the joint periphery, wherein a first plane and a second plane which are opposite are located between the shaft connecting portion and the joint periphery, and the first plane is provided with a permanent magnet. The central shaft is combined with the shaft connecting portion of the metal base plate. The plastic blades are respectively provided with one coupling portion and one air driving portion, the coupling portions are combined with the joint periphery of the metal base plate, and the air driving portions axially extend to the upper portion of the second plane. Therefore, the fan wheel is rotatably combined with a drive module, and the drive module is arranged inside the fan frame to form the horizontal convection fan, so that air flows can be effectively blocked in the air flow guiding-in and guiding-out process of the fan wheel in the horizontal direction.
Description
Technical field
The invention relates to a kind of advection fan and impeller thereof, especially a kind of advection fan and impeller thereof that can import and derive with substantially horizontal for air-flow.
Background technique
Existing heat-dissipating fan roughly comprises two kinds of axial flow type heat elimination fan and blast-type cooling fans.Wherein axial flow type heat elimination fan has respectively relative axial wind inlet and an Axial-running Out air port in the axial direction, to import air-flow via this axial wind inlet, then derives air-flow via this Axial-running Out air port, and then heat sinking function is provided; Again, blast-type cooling fan is to have in the axial direction an axial wind inlet, and has diametrically an exhaust outlet radially, to import air-flow via this axial wind inlet, then via this radially exhaust outlet lateral guide go out air-flow, and there is heat sinking function equally.
Yet, with axial flow type heat elimination fan, owing to only can dispelling the heat towards axial direction air-out by air-guiding, and cannot towards radial direction air-out, dispel the heat by air-guiding; Therefore, when axial flow type heat elimination fan is applied to various electronic product, must be assembled in the top (as the end face of the central processing unit (CPU) of personal computer) of thermal source, cause the axial height of this electronic product to reduce; Again, with blast-type cooling fan, although can via this radially exhaust outlet lateral guide go out air-flow, but still must utilize this axial wind inlet to import air-flow, therefore, and be not suitable for and must via side directions, import the electronic product of air-flow, for example: as mobile phone, PDA(Personal Digital Assistant) ... Deng.
For this reason, also there is on the market a kind of footpath at impeller upwards, can with radial level direction, import and derive the existing level convection fan of air-flow, to be applicable to, must import via side directions the electronic product (mobile phone or PDA Personal Digital Assistant etc.) of air-flow.Yet, with the market demand now, aforementioned electronic product is all generally towards compactization direction research and development design, therefore, the impeller of existing level convection fan must not affect under the precondition of wind dispelling usefulness relatively, can effectively reduce whole axial height and volume for better, to be applied to more compact electronic product; But the impeller of existing level convection fan is mainly integrally formed by plastic materials or utilize metallic material punching press to make; Wherein, when being integrally formed as the impeller of reservation shape by plastic materials, as the plastic fan wheel construction of wish making thinner thickness, by easily causing, the overall construction intensity of impeller is not good; When utilizing metallic material punching press to make the impeller of thinner thickness, though can promote the structural strength of impeller, use too much metallic material again, relatively easily cause the increase of manufacture cost, and when this impeller rotation of motor driving, its load improves relatively, and affects molar behavior efficiency.
As shown in Figure 1, for TaiWan, China M350746 < < slimming fan propeller > > new patent case, this Patent Case is at present more common slimming fan wheel structure design on the market.Wherein this Patent Case discloses a fan propeller 8, this fan propeller 8 has a metal shell 81, these metal shell 81 central authorities are in conjunction with an axle center 82, and the outside metal blade support 83 that forms of the perisporium one of this metal shell 81, and this metal blade support 83 is in conjunction with fixing a plastics flabellum portion 84; Whereby, though this fan propeller 8 designs for slimming, but because these fan propeller 8 main structures consist of metal shell 81 and metal blade support 83, therefore still can possess preferably structural strength, and this fan propeller 8 is the made plastics flabellum portion 84 of plastic materials in order to the structure of wind dispelling, therefore, also can effectively reduce manufacture cost, make this fan propeller 8 be achieved the advantage that thin type tool has better structural strength concurrently.Yet this fan propeller 8 still has problem as described below and exists:
1, in the central axial direction in this axle center 82, the wind dispelling face of the plastics flabellum portion 83 of this fan propeller 8 extends towards axial relative two extreme directions in this axle center 82 respectively, therefore, this fan propeller 8 is only suitable as the fan propeller 8 of blast-type cooling fan, although this fan propeller 8 can be realized thin type and have the advantage of better structural strength concurrently, yet this fan propeller 8 is also not suitable as the fan wheel structure of advection fan.
2, due to non-between these metal shell 81 central authorities position of pivot joint axle center 82 (in order to) and the outer periphery (in order to the position in conjunction with plastics flabellum portion 83) of this metal blade support 83 be complete plane structure, the position also joining at this metal shell 81 and this metal blade support 83 is the hub portion 85 of crowned; Moreover the upper limb 841 of this plastics flabellum portion 84 is not in the axial direction also higher than the end face (take graphic direction as main) of this hub portion 85; Therefore, even the impeller using this fan propeller 8 as advection fan by force, but with substantially horizontal, import and derive in the process of air-flow at fan propeller 8, this metal shell 81 causes sizable obstruction with the air-flow that these metal blade support 83 connecting part formed hub portions 85 still can drive this plastics flabellum portion 84, and then affects the wind dispelling radiating effect of this fan propeller 8.
Again, as shown in Figure 2, for the fan structure > > new patent case of No. 553323 < < advection of TaiWan, China bulletin, this existing level convection fan 9 comprises a shell block 91 and an impeller 92.This shell block 91 has at least one wind inlet 911 and at least one exhaust outlet 912, is provided with a horizontal gas flow passage 913 between this wind inlet 911 and exhaust outlet 912; This impeller 92 is arranged at this horizontal gas flow passage 913, and this impeller 92 has a wheel hub 921, and the outer circumferential face of this wheel hub 921 forms several blades 922; Whereby, when this impeller 92 rotation, between this wind inlet 911 and exhaust outlet 912, produce gas pressure difference, so that produce convection current and dispel the heat along this horizontal gas flow passage 913 between this wind inlet 911 and exhaust outlet 912.
Similarly, with current common existing level convection fan 9 on the market.This impeller 92 is when being installed in this horizontal gas flow passage 913, because this blade 922 is respectively formed at the outer circumferential face of this impeller 92, and respectively the apical margin of this blade 922 trims in the end face of this wheel hub 921, therefore, when each blade 922 air-guidings of this impeller 92 produce in the process of convection current along this horizontal gas flow passage 913, this air-flow will equally easily be subject to the obstruction of this wheel hub 921, and then cannot export larger air quantity, significantly reduce the integral heat sink effect of this existing level convection fan and impeller 92 thereof, and also easily produce flow-disturbing and noise.
In sum, no matter be the slimming fan wheel structure that is applicable to blower fan, or the fan wheel structure that advection fan is generally used at present, there is all equally wheel hub 921(shell portion 85) occupy the most area of air-flow path, make the producible throughput wretched insufficiency of fan, cannot meet integral heat sink demand, therefore still have necessity of being improved.
Summary of the invention
Main purpose of the present invention provides a kind of advection fan, and the impeller of this advection fan, importing and derive in the process of air-flow with radial direction, can effectively prevent that air-flow from being hindered, and is its main goal of the invention.
The present invention's time object provides a kind of impeller of advection fan, and it forms the fan wheel structure that is applicable to advection fan in conjunction with plastic blade with metal substrate, to have slimming and better structural strength concurrently, and be more suitable for being applied to the advection fan of slimming.
The impeller of advection fan according to the present invention, comprises a metal substrate, a central shaft and several plastic blade.This metal substrate has an axis part and engages periphery away from one of this axis part, between this axis part and this joint periphery, there is one first plane and one second plane that are relative, and be without bending planar between this axis part and joint periphery, wherein from this second plane, towards the direction of this first plane, be defined as a first direction, from this first plane, towards the direction of this second plane, be defined as a second direction, and this first plane is provided with a permanent magnet; This central shaft forms a fixed connecting end and a free end in relative two ends, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this free end extends axially towards this first direction; These several plastic blades have respectively a couplings and a wind dispelling portion, and this couplings is in conjunction with the joint periphery of this metal substrate, and this wind dispelling portion extends axially towards this second direction.
Under constructed concept, the impeller of advection fan of the present invention can be applied to advection fan, and this advection fan comprises a fan frame, a driver module and an impeller.This fan frame comprises one first closure and one second closure, is provided with a side wall portion between this first closure and the second closure, and this side wall portion is provided with a wind inlet and an exhaust outlet, this drive module setting is inner in this fan frame, and this impeller comprises a metal substrate, one central shaft and several plastic blade, this metal substrate has an axis part and and engages periphery, between this axis part and this joint periphery, there is one first plane and one second plane that are relative, from this second plane, towards the direction of this first plane, be defined as a first direction, from this first plane, towards the direction of this second plane, be defined as a second direction, and this first plane is provided with a permanent magnet, this central shaft is in conjunction with axis part and this driver module of pivot joint of this metal substrate, these several plastic blades have respectively a couplings and a wind dispelling portion, this couplings is in conjunction with the joint periphery of this metal substrate, this wind dispelling portion extends axially towards this second direction.
Described driver module comprises an axle bed and a substrate, this axle bed is arranged at the first closure of this fan frame, the axle bed of this driver module of central shaft pivot joint of this impeller, this substrate is incorporated into this axle bed periphery, and this substrate surface is formed with coil groups, between the permanent magnet of this impeller and this coil groups, form an axial air-gap.
Described several plastic blade this central shaft axially on respectively there is an apical margin, this apical margin is towards this second direction, the second plane of the apical margin of these several plastic blades and this metal substrate has an axial difference in height.
The common formation of apical margin one horizontal reference plane of described several plastic blades, forms a horizontal gas flow guiding space by this axial difference in height between the second plane of this horizontal reference plane and this metal substrate.
The wind dispelling portion of described several plastic blades is jointly around forming this horizontal gas flow guiding space.
The wind dispelling portion of described several plastic blades, this central shaft axially on, the top of concentrating the second plane that is positioned at this metal substrate.
The fixed connecting end truncation of described central shaft or do not protrude from the second plane of this metal substrate.
Described several plastic blade is the joint periphery in conjunction with this metal substrate with ejection formation one.This engages periphery can be several breach, flexuose outer periphery, bend section or continuous bend section.
Described central shaft is incorporated into the axis part of this metal substrate with an axle sleeve.
Described axle sleeve is plastic sleeve, in order to this central shaft one is incorporated into the axis part of this metal substrate; Wherein the axis part of this metal substrate forms several breach, flexuose inner circumference edge or non-circular hole.
The first plane of described metal substrate and one second plane are exposed shape; Or the first plane of this metal substrate or one second plane coating plastic film or antirust film.
The opening bore of the exhaust outlet of described fan frame is less than the opening bore of this wind inlet.
Accompanying drawing explanation
Fig. 1: the assembled sectional view of existing slimming fan propeller.
Fig. 2: the stereo appearance figure of existing level convection fan.
Fig. 3: the three-dimensional exploded view of the advection fan of first embodiment of the invention.
Fig. 4: the assembled sectional view of the advection fan of first embodiment of the invention.
Fig. 5: the schematic top plan view when combination periphery of the impeller of the advection fan of first embodiment of the invention is breach.
Fig. 6: the assembled sectional view when combination periphery of the impeller of the advection fan of first embodiment of the invention is bend section.
Fig. 7: the assembled sectional view when combination periphery of the impeller of the advection fan of first embodiment of the invention is continuous bend section.
Fig. 8: the three-dimensional exploded view of the advection fan of second embodiment of the invention.
Fig. 9: the assembled sectional view of the advection fan of second embodiment of the invention.
Figure 10: the schematic top plan view of the impeller of the advection fan of second embodiment of the invention.
[primary clustering symbol description]
(the present invention)
1 fan frame 11 first closure 12 second closure
13 side wall portion 131 wind inlet 132 exhaust outlets
2 driver module 21 axle bed 22 substrates
221 coil groups 3,3 ' impeller 31 metal substrates
311 axis parts 312 engage periphery 313 first planes
314 second plane 315 permanent magnet 32 central shafts
321 fixed connecting end 322 free end 33 plastic blades
331 couplings 332 wind dispelling portion 333 apical margins
4 axle sleeve 1 first direction D2 second directions
G axial air-gap H axial difference in height horizontal reference plane
(existing)
8 fan propeller 1 metal shell 82 axle center
83 metal blade support 84 plastics flabellum portion 41 upper limbs
85 hub portion advection fan 1 shell blocks
911 wind inlet 12 exhaust outlet 913 horizontal gas flow passages
92 impeller 921 wheel hub 22 blades.
Embodiment
For above-mentioned and other object, feature and advantage of the present invention can be become apparent, preferred embodiment of the present invention cited below particularly, and coordinate institute's accompanying drawing, be described in detail below:
Please refer to shown in Fig. 3 and 4, the advection fan of first embodiment of the invention comprises a fan frame 1, a driver module 2 and an impeller 3.This fan frame 1 is can be for air-flow with the mobile frame structure of radial direction; This driver module 2 is incorporated into this fan frame 1 inside; And this impeller 3 can be rotatably in conjunction with this driver module 2, so that this driver module 2 drives this impeller 3 rotation runnings.
This fan frame 1 can be any can for this driver module 2 and this impeller 3 be accommodating and the hollow frame structure that imports and derive with radial direction for air-flow, this hollow frame structure can be the structural design of various geometrical shapies, such as polygon, circle or oval etc.; In the present embodiment, disclosing this fan frame 1 is tetragonal frame structure.
In more detail, the fan frame 1 of the present embodiment comprises one first closure 11 and one second closure 12, between this first closure 11 and the second closure 12, there is a spacing, and be provided with a side wall portion 13 between this first closure 11 and the second closure 12, this side wall portion 13 is provided with a wind inlet 131 and an exhaust outlet 132, whereby, to form an advection formula fan frame structure, this advection formula fan frame structure is upper and lower closed state (take graphic direction as main) in the axial direction, and the setting position of this wind inlet 131 and exhaust outlet 132 and quantity can coordinate different demands to do to change, wherein this first closure 11, the second closure 12 and side wall portion 13 can be integrated structural design, in the present embodiment, this first closure 11 and this side wall portion 13 are one-body molded, this second closure 12 is a cover plate, this cover plate is incorporated into this side wall portion 13 removably, to this driver module 2 and this impeller 3 are assembled in to this fan frame 1 inside, again, in the present embodiment, the opening direction that separately discloses this wind inlet 131 and this exhaust outlet 132 is the design (also can be designed to be less than the design of 90 degree) of 90 degree with respect to these driver module 2 central positions, the opening bore of this exhaust outlet 132 is preferably the opening bore that is less than this wind inlet 131, to promote whole blast.
This driver module 2 is the various modular structures that can drive these impeller 3 spinning movements; The basic structure of this driver module 2 forms and can comprise as members such as coil groups, circuit board, silicon steel plate, axle beds, and this driver module 2 is for utilizing alternating magnetic field principle to drive these impeller 3 rotations (coordinating the default permanent magnet of impeller 3), under it, technical field personnel are appreciated that appearance does not repeat.In the present embodiment, this driver module 2 comprises an axle bed 21 and a substrate 22; This axle bed 21 is arranged at this fan frame 1 inside (set-up mode can be formed in one or dismantled and assembled combination etc.), in the present embodiment, this axle bed 21 is in conjunction with the first closure 11 of this fan frame 1, again, sheathed this axle bed 21 peripheries that are incorporated into of this substrate 22, and these substrate 22 surfaces are formed with coil groups 221 with wire laying mode (Layout).
This impeller 3 is rotatably in conjunction with this driver module 2, and between this impeller 3 and this driver module 2, be preferably and form an axial air-gap G, the horizontal convection fan driving with radial air gap compared to tradition, advection fan of the present invention more can utilize the structural design driving with axial air-gap G, effectively to reduce overall volume and structure complexity.Again, impeller 3 of the present invention comprises a metal substrate 31, a central shaft 32 and several plastic blade 33; This central shaft 32 is incorporated into the central position of this metal substrate 31, and these several plastic blades 33 are incorporated into the outer periphery of this metal substrate 31.
This metal substrate 31 has an axis part 311 and engages periphery 312 away from one of this axis part 311, between this axis part 311 and this joint periphery 312, there is one first plane 313 and one second plane 314 that are relative, also the metal substrate 31 between this axis part 311 and this joint periphery 312 is preferably the planar (not comprising axis part 311) without bending, wherein this central shaft 32 axially on, from this second plane 314, towards the direction of this first plane 313, be defined as a first direction D1, from this first plane 313, towards the direction of this second plane 314, be defined as a second direction D2, and this first plane 313 is provided with a permanent magnet 315.
Again, the first plane 313 and one second plane 314 of this metal substrate 31 can be exposed shape, or also can utilize as the first plane 313 or one second plane 314 of plastic pellicle or coated this metal substrate 31 of antirust film; And this metal substrate 31 is preferably the plate body that magnetic conductive material is made, when when in conjunction with this permanent magnet 315, this metal substrate 31 can be used as the purposes of envelope magnetic sheet, and this metal substrate 31 can utilize and form this axis part 311 as punching press or other processing mode that can reach identical object, this axis part 311 for various can be in order to fix the structural design of this central shaft 32, in the present embodiment, this axis part 311 is for utilizing the formed fixed hole of impact style, this fixed hole periphery is formed with flange, and this fixed hole runs through this first plane 313 and this second plane 314.
This central shaft 32 has a fixed connecting end 321, this fixed connecting end 321 is incorporated into the axis part 311 of this metal substrate 31, the fixed connecting end 321 of this central shaft 32 can adopt as buckle, locking, welding, drive fit etc. with the secure bond mode of this axis part 311, when it is fixed on this axis part 311 with this central shaft 32, this central shaft 32 can not dally alone in the axis part 311 of this metal substrate 31; Again, the fixed connecting end 321 of this central shaft 32 is preferably and does not protrude from second plane 314 of (be truncation in or lower than) this metal substrate 31; And this central shaft 32 has a free end 322 that is relatively away from this fixed connecting end 321, and this free end 322 extends axially towards this first direction D1.When this central shaft 32 and this metal substrate 31 complete after assembling, this central shaft 32 can be rotatably in conjunction with the axle bed 21 of this driver module 2, and form an axial air-gap G between this permanent magnet 315 and the coil groups 221 of this driver module 2.
These several plastic blades 33 have respectively a couplings 331 and a wind dispelling portion 332, this couplings 331 in conjunction with the joint periphery 312 of this metal substrate 31 wherein these several plastic blades 33 be preferably the joint periphery 312 in conjunction with this metal substrate 31 with ejection formation one, to promote, manufacture and assembling convenience, the better formation of joint periphery 312 of this metal substrate 31 is as several breach, flexuose outer periphery, bend section, continuously bend section or other have the structure of identical function, so that these several plastic blades 33 are with ejection formation one during in conjunction with the joint periphery 312 of this metal substrate 31, can effectively prevent that these several plastic blades 33 are loosening, for example:
As shown in Figure 5, the joint periphery 312 of this metal substrate 31 is several breach, when these several plastic blades 33 are with ejection formation one during in conjunction with joint periphery 312 formed several breach of this metal substrate 31, these several blades 33 can be embedded in this several breach, to reach, effectively prevent the loosening effect of these several plastic blades 33.
As shown in Figure 6, the joint periphery 312 of this metal substrate 31 is the bend section towards the downward-sloping extension of this first direction D1, when these several plastic blades 33 are with ejection formation one during in conjunction with the joint periphery 312 formed bend section of this metal substrate 31, these several blades 33 can ring-type one be coated this bend section, can reach equally and effectively prevent the loosening effect of these several plastic blades 33.
As shown in Figure 7, the joint periphery 312 of this metal substrate 31 is for after first extending axially towards this first direction D1, the continuous bend section extending towards radial direction again, when these several plastic blades 33 are with ejection formation one during in conjunction with the joint periphery 312 formed continuous bend section of this metal substrate 31, these several blades 33 can ring-type one be coated this continuous bend section, can reach equally and effectively prevent the loosening effect of these several plastic blades 33.
Again, 332, this wind dispelling portion extends axially towards this second direction D2, whereby, this central shaft 32 axially on, the wind dispelling portion 332 of these several plastic blades 33 can concentrate the top (take graphic direction as main) of the second plane 314 that is positioned at this metal substrate 31, makes impeller 3 of the present invention be more suitable for the fan wheel structure as advection fan.
Each plastic blade 33 of impeller 3 of the present invention this central shaft 32 axially on respectively there is an apical margin 333, this apical margin 333 towards this second direction D2(towards this second closure 12), in the present embodiment, the apical margin 333 of each plastic blade 33 has an axial difference in height H with the second plane 314 of this metal substrate 31, in more detail, by the technical characteristics of this axial difference in height H, respectively the apical margin 333 of this plastic blade 33 can form a horizontal reference plane P jointly, between the second plane 314 of this horizontal reference plane P and this metal substrate 31, forming a horizontal gas flow guiding space (is preferably without the crowned structure like wheel hub in this horizontal gas flow guiding space, can avoid the air current flow interrupted), and the wind dispelling portion 332 of these several plastic blades 33 is jointly around forming this horizontal gas flow guiding space, whereby, at this impeller 3, with substantially horizontal, import and derive in the process of air-flow, make this impeller 3 can utilize this horizontal gas flow guiding space more successfully air-guiding circulate in this fan frame 1 inside, the noise being produced with minimizing flow-disturbing phenomenon and significantly improving radiating effect.
Advection fan of the present invention is when reality is used, and the alternating magnetic field that this driver module 2 produces can be in order to drive this impeller 3 rotation runnings; Whereby, this advection fan can be installed in various electronic product, and the plastic blade 33 of this impeller 3 can import extraneous air-flow from this wind inlet 131 and enter this fan frame 1 inside, via this exhaust outlet 132, export to extraneous space again, the thermal source being produced when for the running of various electronic product provides predetermined thermolysis.
The technical characteristics of advection fan of the present invention and impeller thereof is: the footpath at impeller 3 makes progress, can via this wind inlet 131 and this exhaust outlet 132, import and derive air-flow with substantially horizontal, therefore, when this advection fan and impeller thereof are applied to various electronic product, need not be assembled in the top of thermal source, the axial height of this electronic product is minimized, and this advection fan and impeller 3 thereof also can provide preferably auxiliary heat dissipation effect of the thermal source that is positioned at arround this exhaust outlet 132, the more important thing is, in process at these impeller 3 air-guidings via this wind inlet 131 and this fan frame 1 of this exhaust outlet 132 turnover, due to the axis part 311 of this metal substrate 31 and engage between periphery 312 as being relative the first plane 313 and the second plane 314, wherein this second plane 314 is without any structure like wheel hub crowned, and the wind dispelling portion 332 of these several plastic blades 33 extends axially towards this second direction D2, therefore, the air-flow that these several plastic blades 33 are guided from this wind inlet 131 can be exported to this exhaust outlet 132 via these the second plane 314 tops more smoothly, effectively to reduce the obstruction situation of air current flow, and then prevent the generation of flow-disturbing phenomenon, and hold concurrently and can promote integral heat sink effect.
Moreover the impeller 3 of advection fan of the present invention is mainly consisted of this metal substrate 31 and several plastic blade 33.Wherein this metal substrate 31 can adopt thin-slab structure, makes this impeller 3 in slimming design, still can utilize this metal substrate 31 to retain preferably structural strength; Again, the plastic blade 33 that the wind dispelling structure division of this impeller 3 adopts plastic material to make, therefore, also can effectively reduce manufacture cost, makes impeller 3 of the present invention have thin type concurrently and the advantage such as structural strength is good simultaneously.The more important thing is, the plastic blade 33 of this impeller 3 extends axially towards this second direction D2, make the concentrated top that is positioned at the second plane 314 of this metal substrate 31 of wind dispelling portion 332 of these several plastic blades 33, also when impeller 3 of the present invention is during as the fan wheel structure of advection fan, these several plastic blades 33 will have enough wind dispelling areas, to carry out the importing of substantially horizontal and to derive air-flow operation, therefore impeller of the present invention 3 is more suitable for the impeller as slimming and the good advection fan of structural strength.
Please refer to shown in Fig. 8 and 9, disclose the advection fan of second embodiment of the invention, this advection fan comprises a fan frame 1, a driver module 2 and an impeller 3 ' equally.Wherein the fan frame 1 of second embodiment of the invention and driver module 2 and the first embodiment's fan frame 1 and driver module 2 are roughly the same, and its identical structure characteristic appearance does not repeat.In the present embodiment, disclose the wind inlet 131 of this fan frame 1 and the opening direction of this exhaust outlet 132 relatively these driver module 2 central positions for relatively to 180 degree designs.
The better axis part 311 that is incorporated into this metal substrate 31 with an axle sleeve 4 of central shaft 32 of the impeller 3 ' of second embodiment of the invention, effectively to increase linking steady character and the assembling convenience between this central shaft 32 and this metal substrate 31, this axle sleeve 4 can be plastic sleeve, to utilize injection molding method these central shaft 32 one to be incorporated into the axis part 311 of this metal substrate 31, guarantee to there is better linking steady character between this central shaft 32 and this metal substrate 31.Wherein as shown in figure 10, the better formation in axis part 311 of this metal substrate 31 has the structure of identical function as several breach, flexuose inner circumference edge, non-circular hole or other, so that axle sleeve 4 during in conjunction with the axis part 311 of this metal substrate 31, can effectively prevent axle sleeve 4 idle running or loosening with plastic ejection moulding one.
The wind dispelling portion 332 of impeller based on advection fan of the present invention 3, several plastic blades 33 of 3 ' is under the axially extended precondition of this second direction D2, due to the axis part 311 of this metal substrate 31 and to engage between periphery 312 be without bending, without the second plane 314 of wheel hub crowned seemingly, therefore, this impeller 3, several plastic blades 33 of 3 ' are importing and are deriving in the process of air-flow with radial level direction, can effectively prevent that air-flow from being hindered, to reach the effect that promotes integral heat sink effect.
But the above is only preferred embodiment of the present invention, when not limiting the scope of the present invention with this; Therefore all simple equivalences of doing according to the present patent application the scope of the claims and creation description change and modify, and all should still remain within the scope of the patent.
Claims (29)
1. an impeller for advection fan, is characterized in that, comprises:
A metal substrate, there is an axis part and engage periphery away from one of this axis part, between this axis part and this joint periphery, there is first plane and second plane that are relative, and be without bending planar between this axis part and joint periphery, wherein from this second plane, towards the direction of this first plane, be defined as first direction, from this first plane, towards the direction of this second plane, be defined as second direction, and this first plane is provided with a permanent magnet;
A central shaft, forms a fixed connecting end and a free end in relative two ends, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this free end extends axially towards this first direction; And
Several plastic blades, have respectively a couplings and a wind dispelling portion, and this couplings is in conjunction with the joint periphery of this metal substrate, and this wind dispelling portion extends axially towards this second direction.
2. the impeller of advection fan as claimed in claim 1, it is characterized in that, these several plastic blades this central shaft axially on respectively there is an apical margin, this apical margin is towards this second direction, the second plane of the apical margin of these several plastic blades and this metal substrate has axial difference in height.
3. the impeller of advection fan as claimed in claim 2, it is characterized in that, a horizontal reference plane of the common formation of apical margin of these several plastic blades, forms horizontal gas flow guiding space by this axial difference in height between the second plane of this horizontal reference plane and this metal substrate.
4. the impeller of advection fan as claimed in claim 3, is characterized in that, the wind dispelling portion of these several plastic blades is jointly around forming this horizontal gas flow guiding space.
5. the impeller of advection fan as claimed in claim 1, is characterized in that, this central shaft axially on, the wind dispelling portion of these several plastic blades concentrates the top of the second plane that is positioned at this metal substrate.
6. the impeller of advection fan as claimed in claim 1, is characterized in that, the fixed connecting end of this central shaft does not protrude from the second plane of this metal substrate.
7. the impeller of advection fan as claimed in claim 1, is characterized in that, these several plastic blades are the joint periphery in conjunction with this metal substrate with ejection formation one.
8. the impeller of advection fan as claimed in claim 7, is characterized in that, the joint periphery of this metal substrate forms several breach, flexuose outer periphery, bend section or continuous bend section.
9. the impeller of advection fan as claimed in claim 1, is characterized in that, this central shaft is incorporated into the axis part of this metal substrate with an axle sleeve.
10. the impeller of advection fan as claimed in claim 9, is characterized in that, this axle sleeve is in order to this central shaft one is incorporated into the plastic sleeve of the axis part of this metal substrate.
The impeller of 11. advection fans as claimed in claim 10, is characterized in that, the axis part of this metal substrate forms several breach, flexuose inner circumference edge or non-circular hole.
The impeller of 12. advection fans as claimed in claim 1, is characterized in that, the first plane of this metal substrate and one second plane are exposed shape.
The impeller of 13. advection fans as claimed in claim 1, is characterized in that, the first plane of this metal substrate or the second plane coating plastic film or antirust film.
14. 1 kinds of advection fans, is characterized in that, comprise:
A fan frame, comprises first closure and second closure, is provided with a side wall portion between this first closure and the second closure, and this side wall portion is provided with a wind inlet and an exhaust outlet;
A driver module, is arranged at this fan frame inner; And
An impeller, comprise a metal substrate, a central shaft and several plastic blade, this metal substrate has an axis part and a joint periphery, between this axis part and this joint periphery, there is first plane and second plane that are relative, from this second plane, towards the direction of this first plane, be defined as first direction, from this first plane, towards the direction of this second plane, be defined as second direction, and this first plane is provided with a permanent magnet, this central shaft is in conjunction with axis part and this driver module of pivot joint of this metal substrate, these several plastic blades have respectively a couplings and a wind dispelling portion, this couplings is in conjunction with the joint periphery of this metal substrate, this wind dispelling portion extends axially towards this second direction.
15. advection fans as claimed in claim 14, it is characterized in that, this driver module comprises an axle bed and a substrate, this axle bed is arranged at the first closure of this fan frame, the axle bed of this driver module of central shaft pivot joint of this impeller, this substrate is incorporated into this axle bed periphery, and this substrate surface is formed with coil groups, between the permanent magnet of this impeller and this coil groups, forms axial air-gap.
16. advection fans as described in claims 14 or 15, is characterized in that, the axis part of this metal substrate and engaging between periphery is without bending planar.
17. advection fans as described in claims 14 or 15, it is characterized in that, these several plastic blades this central shaft axially on respectively there is an apical margin, this apical margin is towards this second direction, the second plane of the apical margin of these several plastic blades and this metal substrate has axial difference in height.
18. advection fans as claimed in claim 17, it is characterized in that, a horizontal reference plane of the common formation of apical margin of these several plastic blades, forms horizontal gas flow guiding space by this axial difference in height between the second plane of this horizontal reference plane and this metal substrate.
19. advection fans as claimed in claim 18, is characterized in that, the wind dispelling portion of these several plastic blades is jointly around forming this horizontal gas flow guiding space.
20. advection fans as described in claims 14 or 15, is characterized in that, this central shaft axially on, the wind dispelling portion of these several plastic blades concentrates the top of the second plane that is positioned at this metal substrate.
21. advection fans as described in claims 14 or 15, is characterized in that, the fixed connecting end of this central shaft does not protrude from the second plane of this metal substrate.
22. advection fans as described in claims 14 or 15, is characterized in that, these several plastic blades are the joint periphery in conjunction with this metal substrate with ejection formation one.
23. advection fans as claimed in claim 22, is characterized in that, the joint periphery of this metal substrate forms several breach, flexuose outer periphery, bend section or continuous bend section.
24. advection fans as described in claims 14 or 15, is characterized in that, this central shaft is incorporated into the axis part of this metal substrate with an axle sleeve.
25. advection fans as claimed in claim 24, is characterized in that, this axle sleeve is plastic sleeve, in order to this central shaft one is incorporated into the axis part of this metal substrate.
26. advection fans as claimed in claim 25, is characterized in that, the axis part of this metal substrate forms several breach, flexuose inner circumference edge or non-circular hole.
27. advection fans as described in claims 14 or 15, is characterized in that, the first plane of this metal substrate and the second plane are exposed shape.
28. advection fans as described in claims 14 or 15, is characterized in that the first plane of this metal substrate or the second plane coating plastic film or antirust film.
29. advection fans as described in claims 14 or 15, is characterized in that, the opening bore of the exhaust outlet of this fan frame is less than the opening bore of this wind inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248593.4A CN103573698A (en) | 2012-07-18 | 2012-07-18 | Horizontal convection fan and fan wheel thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210248593.4A CN103573698A (en) | 2012-07-18 | 2012-07-18 | Horizontal convection fan and fan wheel thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103573698A true CN103573698A (en) | 2014-02-12 |
Family
ID=50046220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210248593.4A Pending CN103573698A (en) | 2012-07-18 | 2012-07-18 | Horizontal convection fan and fan wheel thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103573698A (en) |
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| CN105317705A (en) * | 2014-05-28 | 2016-02-10 | 奇鋐科技股份有限公司 | Fan structure |
| CN105545800A (en) * | 2015-12-15 | 2016-05-04 | 联想(北京)有限公司 | Fan blade structure and cooling fan |
| CN109026541A (en) * | 2018-10-22 | 2018-12-18 | 济宁圣峰环宇新能源技术有限公司 | A kind of wind energy directly drives heat-exchange device |
| CN110296101A (en) * | 2019-05-07 | 2019-10-01 | 苏州顺福利智能科技有限公司 | Minitype flabellum |
| CN113374736A (en) * | 2020-03-10 | 2021-09-10 | 神讯电脑(昆山)有限公司 | Anti-falling fan strengthening structure |
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| CN113374736A (en) * | 2020-03-10 | 2021-09-10 | 神讯电脑(昆山)有限公司 | Anti-falling fan strengthening structure |
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Application publication date: 20140212 |
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