CN202955001U - Cooling fan and fan wheel thereof - Google Patents

Cooling fan and fan wheel thereof Download PDF

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Publication number
CN202955001U
CN202955001U CN 201220565865 CN201220565865U CN202955001U CN 202955001 U CN202955001 U CN 202955001U CN 201220565865 CN201220565865 CN 201220565865 CN 201220565865 U CN201220565865 U CN 201220565865U CN 202955001 U CN202955001 U CN 202955001U
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CN
China
Prior art keywords
permanent magnet
positioning
magnet rings
metal substrate
impeller
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CN 201220565865
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Chinese (zh)
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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Priority to TW101139112A priority Critical patent/TWI479086B/en
Priority to TW101139112 priority
Application filed by Sunonwealth Electric Machine Industry Co Ltd filed Critical Sunonwealth Electric Machine Industry Co Ltd
Application granted granted Critical
Publication of CN202955001U publication Critical patent/CN202955001U/en
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Abstract

A cooling fan comprises a fan frame, a motor and a fan wheel. The motor is disposed in the fan frame. The fan wheel combines with the motor and comprises a metal substrate, a central shaft and a permanent magnet ring. The metal substrate is provided at least one positioning part, and each positioning part is provided with a first butting edge. The central shaft combines with the metal substrate. A first radial distance is reserved between the central axis of the central shaft and the first butting edge of the positioning part. The permanent magnet ring is provided with a second butting edge which is butted against the first butting edge of the positioning part. A second radial distance is reserved between the second butting edge and a central point of the permanent magnet ring. The second radial distance equals to the first radial distance. Accordingly, the permanent magnet ring can be positioned at the correct center through the positioning part when the permanent magnet ring is assembled to the metal substrate.

Description

Radiation fan and impeller thereof
Technical field
The utility model is about a kind of radiation fan and impeller thereof, especially a kind of radiation fan and impeller thereof that is applicable to the slimming design.
Background technique
Electronic product is generally towards the directions such as microminiaturized trend research and development design now; Wherein being installed in various electronic product, in order to the radiation fan of predetermined heat dissipation effect to be provided, must matching design be more compactization equally, can be applied to smoothly microminiaturized electronic equipment or electronic instrument.
Please refer to shown in Fig. 1, is No. M350746 " slimming fan propeller " new patent case of TaiWan, China, and this Patent Case discloses a kind of existing slim impeller 9.Wherein this slim impeller 9 has a metal shell 91, these metal shell 91 central authorities are in conjunction with an axle center 92, and the perisporium one of this metal shell 91 outwards forms a metal blade support 93, this metal blade support 93 is in conjunction with fixing a plastic cement flabellum section 94, and in these metal shell 91 inboards in conjunction with a permanent magnet rings 95; Whereby, this existing slim impeller 9, can be for being installed in various microminiaturized electronic product for slimming designs.
Generally speaking, when having the assembling operation of slim impeller 9 now, must make 92De center, Yu Gai axle center, this permanent magnet rings 95De center really corresponding, so, when being applied to radiation fan when (including the necessary members such as motor and coil groups) by existing slim impeller 9, can guarantee that existing slim impeller 9 has the quality that preferably turns round; Yet, this permanent magnet rings 95 can be positioned to the structural design of correct central position while due to the metal shell 91 that has slim impeller 9 now, being arranged on assembling, therefore, cause having now in the process of assembling operation of slim impeller 9, the assembling position of necessary extra this permanent magnet rings 95 of adjustment, and still possibly can't effectively guarantee that 92De center, Yu Gai axle center, this permanent magnet rings 95De center is mutually corresponding, cause the inconvenience on assembling operation; Moreover, also can cause this permanent magnet rings 95 can't be corresponding and out of focus with the coil groups of radiation fan, cause the motor induction of radiation fan bad, and the working life of reducing radiation fan, and produce larger noise, therefore still have necessity of being improved.
The model utility content
The utility model main purpose is to provide a kind of radiation fan, and this radiation fan has the metal substrate that can effectively reduce whole axial height, for being applied to various microminiaturized electronic product inside, and holds concurrently and can guarantee that impeller has than good speed and turn quality person.
The utility model time purpose is to provide a kind of impeller of radiation fan, and the metal substrate of this impeller can be positioned permanent magnet rings for correct central position person when assembling.
A better fan frame, a motor and the impeller of comprising of the utility model radiation fan; This fan frame is provided with an intake grill and an exhaust outlet; This motor is arranged at this fan frame inside; This impeller is rotatably in conjunction with this motor.Wherein this impeller comprises a metal substrate, a central shaft and a permanent magnet rings; This metal substrate has an axis part and is provided with several blades away from a ,Gai connecting part, connecting part of this axis part, and this axis part is provided with at least one positioning part between the Ji Gai connecting part, and this at least one positioning part has one first abutment edges; This central shaft is provided with a fixed connecting end, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this central shaft has a central axis, and this central axis to the first abutment edges of this positioning part has one first radial distance; This permanent magnet rings is incorporated into this metal substrate, this permanent magnet rings has one second abutment edges, the first abutment edges of this this positioning part of the second abutment edges butt, and this second abutment edges has one second radial distance to the central point of this permanent magnet rings, and this second radial distance equals this first radial distance.Perhaps, under constructed concept, this at least one positioning part also can be the lateral margin of this blade towards this axis part.
Described metal substrate has a first surface and a second surface that is relative, and this permanent magnet rings is incorporated into this second surface, and this positioning part is preferably and is the convex structure of crowned from this first surface towards this second surface.
The first surface of described metal substrate is better is provided with several punching press depressions, and this positioning part is respectively to several protruding grain that should several punching press depressions.
The better several punching hole that run through this first surface and this second surface that are provided with of described metal substrate, this positioning part is the lug that is formed at this punching hole periphery.
Better formation one bend section between the first surface of described metal substrate and this second surface, this positioning part is the madial wall of this bend section toward this central axis direction.
Described motor comprises an axle bed and a coil groups, and this impeller is rotatably in conjunction with this axle bed, and this coil groups is arranged at this axle bed outer periphery, and better between the coil groups of this permanent magnet rings and this motor have an axial air-gap.
Several blades of described impeller are the plastic cement blade, and this plastic cement blade is preferably the connecting part that one is incorporated into this metal substrate.
Inboard periphery or outboard peripheries that the second abutment edges of described permanent magnet rings is this permanent magnet rings.
Described fan frame comprises a baseplate part and a cover plate section, between this baseplate part and this cover plate section, a side wall section is set, this cover plate section is provided with this intake grill, and this side wall section is provided with this exhaust outlet, this motor is between this baseplate part and this cover plate section, to form the centrifugal fan mount structure.
In another program of the present utility model, a kind of impeller of radiation fan, it comprises:
A metal substrate, have an axis part and be provided with several blades away from the ,Gai connecting part, a connecting part of this axis part, and this axis part is provided with at least one positioning part between the Ji Gai connecting part, and this at least one positioning part has first abutment edges;
A central shaft, be provided with a fixed connecting end, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this central shaft has central axis, and this central axis to the first abutment edges of this positioning part has first radial distance; And
A permanent magnet rings, be incorporated into this metal substrate, this permanent magnet rings has second abutment edges, the first abutment edges of this this positioning part of the second abutment edges butt, and this second abutment edges has second radial distance to the central point of this permanent magnet rings, and this second radial distance equals this first radial distance.
Preferably, this metal substrate has a first surface and a second surface that is relative, and this permanent magnet rings is incorporated into this second surface, and this positioning part is for being the convex structure of crowned towards this second surface from this first surface.
Preferably, the first surface of this metal substrate is provided with several punching press depressions, and this positioning part is respectively to several protruding grain that should several punching press depressions.
Preferably, this metal substrate is provided with the several punching hole that run through this first surface and this second surface, and this positioning part is the lug that is formed at this punching hole periphery.
Preferably, form a bend section between the first surface of this metal substrate and this second surface, this positioning part is the madial wall of this bend section toward this central axis direction.
Preferably, several blades of this impeller are the plastic cement blade, and this plastic cement blade one is incorporated into the connecting part of this metal substrate.
Preferably, the inboard periphery that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
Preferably, the outboard peripheries that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
In a scheme more of the present utility model, a kind of radiation fan, it comprises:
A fan frame, be provided with an intake grill and an exhaust outlet;
A motor, be arranged at this fan frame inside;
An impeller, can be rotatably in conjunction with this motor, and this impeller comprises;
A metal substrate, have an axis part and be provided with several blades away from the ,Gai connecting part, a connecting part of this axis part, and this blade is provided with at least one positioning part towards a lateral margin of this axis part, and this at least one positioning part has first abutment edges;
A central shaft, be provided with a fixed connecting end, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this central shaft has central axis, and this central axis to the first abutment edges of this positioning part has first radial distance; And
A permanent magnet rings, be incorporated into this metal substrate, this permanent magnet rings has second abutment edges, the first abutment edges of this this positioning part of the second abutment edges butt, and this second abutment edges has second radial distance to the central point of this permanent magnet rings, and this second radial distance equals this first radial distance.
Preferably, this motor comprises an axle bed and a coil groups, and this impeller can be rotatably in conjunction with this axle bed, and this coil groups is arranged at this axle bed outer periphery, between the coil groups of this permanent magnet rings and this motor, has axial air-gap.
Preferably, several blades of this impeller are the plastic cement blade, and this plastic cement blade one is incorporated into the connecting part of this metal substrate.
Preferably, the outboard peripheries that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
Preferably, the fan frame comprises a baseplate part and a cover plate section, between this baseplate part and this cover plate section, a side wall section is set, this cover plate section is provided with this intake grill, this side wall section is provided with this exhaust outlet, and this motor is between this baseplate part and this cover plate section, to form the centrifugal fan mount structure.
In another scheme of the present utility model, a kind of impeller of radiation fan, it comprises:
A metal substrate, have an axis part and be provided with several blades away from the ,Gai connecting part, a connecting part of this axis part, and this blade is provided with at least one positioning part towards a lateral margin of this axis part, and this at least one positioning part has first abutment edges;
A central shaft, be provided with a fixed connecting end, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this central shaft has central axis, and this central axis to the first abutment edges of this positioning part has first radial distance; And
A permanent magnet rings, be incorporated into this metal substrate, this permanent magnet rings has second abutment edges, the first abutment edges of this this positioning part of the second abutment edges butt, and this second abutment edges has second radial distance to the central point of this permanent magnet rings, and this second radial distance equals this first radial distance.
Preferably, several blades of this impeller are the plastic cement blade, and this plastic cement blade one is incorporated into the connecting part of this metal substrate.
Preferably, the outboard peripheries that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
The beneficial effects of the utility model are, the utility model radiation fan can, by the metal substrate design of this impeller, effectively to reduce the whole axial height of this impeller, make the utility model radiation fan be more suitable for being applied to the slimming electronic product; When this permanent magnet rings is wanted in conjunction with this metal substrate, more can utilize this positioning part that this permanent magnet rings is positioned to correct central position again, there is the effect that promotes the running quality while making this impeller be applied to radiation fan.
The accompanying drawing explanation
Fig. 1: the assembled sectional view of existing slim impeller.
Fig. 2: the three-dimensional exploded view of the utility model first embodiment's radiation fan.
Fig. 3: the assembled sectional view () of the utility model first embodiment's radiation fan.
Fig. 4: the assembled sectional view (two) of the utility model first embodiment's radiation fan.
Fig. 5: the three-dimensional exploded view of the utility model second embodiment's radiation fan.
Fig. 6: the assembled sectional view () of the utility model second embodiment's radiation fan.
Fig. 7: the assembled sectional view (two) of the utility model second embodiment's radiation fan.
Fig. 8: the three-dimensional exploded view of the utility model the 3rd embodiment's radiation fan.
Fig. 9: the assembled sectional view of the utility model the 3rd embodiment's radiation fan.
Figure 10: the assembled sectional view of the utility model the 4th embodiment's radiation fan.
Figure 11: the assembled sectional view of the utility model the 5th embodiment's radiation fan.
[primary component symbol description]
(the utility model)
1 fan frame
11 baseplate part 12 cover plate sections
121 intake grill 13 side wall sections
131 exhaust outlets
2 motors
21 axle bed 22 coils
3a, 3b, 3c, 3d, 3e impeller
31 metal substrate 311 axis parts
312 connecting part 313 blades
314 positioning part 314a the first abutment edges
315 first surface 316 second surfaces
32 central shaft 321 fixed connecting ends
33 permanent magnet rings 331 second abutment edges
D1 first radial distance D2 the second radial distance
H1 punching press depression H2 punching hole
The H3 bend section
The X central axis
(prior art)
9 slim impellers
91 metal shell 92 axle center
93 metal blade support 94 plastic cement flabellum sections
95 permanent magnet rings.
Embodiment
For above-mentioned and other purpose of the present utility model, feature and advantage can be become apparent, preferred embodiment of the present utility model cited below particularly, and coordinate accompanying drawing, be described in detail below:
Please refer to shown in Fig. 2, the utility model radiation fan comprises a fan frame 1, a motor 2 and an impeller 3a.This fan frame 1 can be axial flow fan frame structure or centrifugal fan mount structure etc., and the fan frame of the utility model preferred embodiment 1 is for can axially importing and radial guiding goes out the centrifugal fan mount structure of air-flow; This motor 2 is to be incorporated into this fan frame 1 inside; This impeller 3a rotatably is incorporated into this motor 2, in order to drive this impeller 3a rotation start by this motor 2.
This fan frame 1 can be the structural design of various geometrical shapies, such as polygon, circle or oval etc.; In this preferred embodiment, this fan frame 1 of announcement is tetragonal frame structure.
The fan frame 1 of the utility model preferred embodiment comprises a baseplate part 11 and a cover plate section 12, between this baseplate part 11 and this cover plate section 12, has a spacing, for a side wall section 13 is set between this baseplate part 11 and cover plate section 12; Wherein this baseplate part 11, cover plate section 12 and side wall section 13 combination and molding mode each other is not restricted, in the present embodiment, this side wall section 13 is outer periphery that Unitary injection formed is incorporated into this baseplate part 11, this cover plate section 12 is to be a cover plate, and this cover plate is incorporated into this side wall section 13 removably.Moreover the cover plate section 12 of this fan frame 1 is provided with an intake grill 121,13, this side wall section is provided with an exhaust outlet 131; Wherein the setting position of this intake grill 121 and exhaust outlet 131 and quantity can coordinate different demands to change.
The motor 2 of the utility model preferred embodiment is to be arranged at this fan frame 1 inside, and between this baseplate part 11 and this cover plate section 12; Wherein this motor 2 is various for after this impeller 3a combination, in order to drive the structural design of this impeller 3a rotation start.As shown in Figure 2, in the present embodiment, this motor 2 comprises an axle bed 21 and a coil groups 22.But this axle bed 21 one or can be incorporated into removably the baseplate part 11 of this fan frame 1, for rotatably combination of this impeller 3a; This coil groups 22(can comprise as members such as silicon steel plate, coil or insulating bushs) be to be arranged at this axle bed 21 outer peripherys, in order to be electrically connected one drive circuit (not illustrating), in order to coordinate this coil groups 22 to drive this impeller 3a rotation start; Wherein this motor 2 drives detailed construction composition and the operation principles of impeller 3a rotation start not to repeat for it will be understood by those skilled in the art that appearance.
The impeller of the utility model preferred embodiment roughly can be divided into following several mode of executions:
As shown in Fig. 2 and 3, disclosed the first embodiment's impeller 3a, this impeller 3a comprises a metal substrate 31, a central shaft 32 and a permanent magnet rings 33.This central shaft 32 is incorporated into the central position of this metal substrate 31, and this permanent magnet rings 33 is incorporated into the inboard of this metal substrate 31.
This metal substrate 31 is provided with an axis part 311 and reaches away from 311De Yi connecting part, this axis part 312.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 to supply the affixed fixed hole of this central shaft 32; This connecting part 312 is to use the position arranged for several blades 313, such as: perforation or flexuose flange etc., these several blades 313 are preferably the plastic cement blade, and this plastic cement blade can utilize the injection molding method one to coat and be incorporated into this connecting part 312.
This metal substrate 31 is provided with at least one positioning part 314 between 311Ji Gai connecting part, this axis part 312, in order to locate this permanent magnet rings 33, and this at least one positioning part 314 has one first abutment edges 314a, this first abutment edges 314a is the position that this positioning part 314 is connected to this permanent magnet rings 33.
This metal substrate 31 of the present embodiment has a first surface 315 and a second surface 316 that is relative, wherein this second surface 316 can supply in conjunction with this permanent magnet rings 33, and this positioning part 314 is for being the convex structure of crowned towards this second surface 316 from this first surface 315; Again, the first surface 315 of this metal substrate 31 can utilize the metal stamping processing mode to be provided with several punching press depression H1, and this positioning part 314 is respectively to several protruding grain that should several punching press depression H1.
This central shaft 32 is provided with a fixed connecting end 321, this fixed connecting end 321 is the axis parts 311 that are incorporated into this metal substrate 31, the secure bond mode of the fixed connecting end of this central shaft 32 321 and the axis part 311 of this metal substrate 31 be can adopt as ejection formation coating, buckle, locking, welding, drive fit, cementation ... Deng.Wherein this central shaft 32 has a central axis X, and this central axis X has one first radial distance D1 to the first abutment edges 314a of this positioning part 314.
This permanent magnet rings 33 has one second abutment edges 331, and this second abutment edges 331 is connected to 314De position, this positioning part for this permanent magnet rings 33; In embodiment as shown in Figure 3, this permanent magnet rings 33 is incorporated into the second surface 316 of this metal substrate 31, this positioning part 314 of inboard periphery butt of this permanent magnet rings 33, therefore, this second abutment edges 331 is the inboard periphery of this permanent magnet rings 33, wherein this second abutment edges 331 has one second radial distance D2 to the central point of this permanent magnet rings 33 (be permanent magnet rings as shown in the figure around the central position of the center hole formed), and this second radial distance D2 equals this first radial distance D1; Perhaps, in embodiment as shown in Figure 4, this positioning part 314 of the outboard peripheries butt of this permanent magnet rings 33, therefore, this the second abutment edges 331 is the outboard peripheries of this permanent magnet rings 33, wherein this second abutment edges 331 has this second radial distance D2 equally to the central point of this permanent magnet rings 33, and this second radial distance D2 equals this first radial distance D1.
Whereby, after this permanent magnet rings 33 is in conjunction with this metal substrate 31, can utilize this positioning part 314 that this permanent magnet rings 33 is positioned to correct central position, make this permanent magnet rings 33De center and the central axis X of this central shaft 32 can be really corresponding, to provide, preferably assemble convenience; Again, better between the permanent magnet rings 33 of the utility model preferred embodiment and the coil groups 22 of this motor 2 have an axial air-gap, compared to the radiation fan with radial air gap, is more suitable for being applied to microminiaturized electronic equipment or electronic instrument.
As shown in Figure 5, disclosed the second embodiment's impeller 3b, the difference of the impeller 3a of this impeller 3b and the first mode of execution is; This metal substrate 31 can utilize the metal stamping processing mode to be provided with to run through several punching hole H2 of this first surface 315 and this second surface 316, and this positioning part 314 is for being formed at the lug of this punching hole H2 periphery.In addition, as shown in Figure 6, disclose this positioning part 314 of inboard periphery butt of this permanent magnet rings 33, this second abutment edges 331 is the inboard periphery of this permanent magnet rings 33; And for example, shown in Fig. 7, disclose this positioning part 314 of outboard peripheries butt of this permanent magnet rings 33, this second abutment edges 331 also can be the outboard peripheries of this permanent magnet rings 33.Whereby, after this permanent magnet rings 33 is in conjunction with this metal substrate 31, can utilize equally this positioning part 314 that this permanent magnet rings 33 is positioned to correct central position.
As shown in Fig. 8 and 9, disclosed the third embodiment's impeller 3c, the difference of the impeller 3a of this impeller 3c and the first mode of execution is; Form a bend section H3 between the first surface 315 of this metal substrate 31 and this second surface 316, this positioning part 314 is the madial wall of this bend section H3 toward these central shaft 32 directions; Again, in the present embodiment, this positioning part 314 of the outboard peripheries butt of this permanent magnet rings 33, therefore, the outboard peripheries that 331 of this second abutment edges are this permanent magnet rings 33.Whereby, after this permanent magnet rings 33 is in conjunction with this metal substrate 31, can utilize equally this positioning part 314 that this permanent magnet rings 33 is positioned to correct central position.
As shown in figure 10, the impeller 3d that has disclosed the 4th kind of embodiment, the combination of the positioning part 314 that the positioning part 314 of this impeller 3d is aforementioned second and third mode of execution, this second radial distance D2 that wherein the present embodiment defines equals the technical characteristics of this first radial distance D1, can for the definition mode of the first radial distance D1 of first and second mode of execution and the second radial distance D2 wherein at least one, so that better locating effect to be provided; By the teaching of the 4th kind of embodiment's impeller 3d, the positioning part 314 of the utility model radiation fan more can be aforementioned each embodiment's suitable permutation and combination, and it it will be appreciated by those skilled in the art that, this paper holds and do not repeat.
As shown in figure 11, the impeller 3e that has disclosed the 5th kind of embodiment, the difference of the impeller 3a of this impeller 3e and the first mode of execution is: this at least one positioning part 314 is the lateral margin of this blade 313 towards this axis part 311, wherein this at least one positioning part 314 has one first abutment edges 314a equally, this central shaft 32 has a central axis X, and this central axis X has one first radial distance D1 to the first abutment edges 314a of this positioning part 314; Again, this positioning part 314 of the outboard peripheries butt of this permanent magnet rings 33, therefore, the outboard peripheries that 331 of this second abutment edges are this permanent magnet rings 33, this second abutment edges 331 has one second radial distance D2 to the central point of this permanent magnet rings 33, and this second radial distance D2 equals this first radial distance D1.Whereby, after this permanent magnet rings 33 is in conjunction with this metal substrate 31, can utilize equally this positioning part 314 that this permanent magnet rings 33 is positioned to correct central position.
The utility model radiation fan can be by metal substrate 31 designs of this impeller 3a, 3b, 3c, 3d, 3e, effectively to reduce the whole axial height of this impeller 3a, 3b, 3c, 3d, 3e, make the utility model radiation fan be more suitable for being applied to the slimming electronic product; When this permanent magnet rings 33 is wanted in conjunction with this metal substrate 31, more can utilize this positioning part 314 that this permanent magnet rings 33 is positioned to correct central position again, make this impeller 3a, 3b, 3c, 3d, 3e there is the effect that promotes the running quality while being applied to radiation fan.
Impeller 3a, the 3b of the utility model radiation fan, 3c, 3d, 3e are after the positioning part 314 that utilizes this metal substrate 31 is positioned this permanent magnet rings 33 for correct central position, can guarantee that this permanent magnet rings 33De center is mutually corresponding with the central axis X of this central shaft 32, therefore, in the process of the assembling operation that carries out this impeller 3a, 3b, 3c, 3d, 3e, additionally the assembling position of this permanent magnet rings 33 of adjustment, can reach the effect that promotes the assembling convenience; In addition, also can guarantee that this permanent magnet rings 33 is mutually corresponding with this coil groups 22, make this motor 2 there is better inducing function, and then reach many effects such as promoting working life and reduction noise.

Claims (26)

1. a radiation fan, is characterized in that, it comprises:
A fan frame, be provided with an intake grill and an exhaust outlet;
A motor, be arranged at this fan frame inside;
An impeller, can be rotatably in conjunction with this motor, and this impeller comprises;
A metal substrate, have an axis part and be provided with several blades away from the ,Gai connecting part, a connecting part of this axis part, and this axis part is provided with at least one positioning part between the Ji Gai connecting part, and this at least one positioning part has first abutment edges;
A central shaft, be provided with a fixed connecting end, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this central shaft has central axis, and this central axis to the first abutment edges of this positioning part has first radial distance; And
A permanent magnet rings, be incorporated into this metal substrate, this permanent magnet rings has second abutment edges, the first abutment edges of this this positioning part of the second abutment edges butt, and this second abutment edges has second radial distance to the central point of this permanent magnet rings, and this second radial distance equals this first radial distance.
2. radiation fan according to claim 1, it is characterized in that, this metal substrate has a first surface and a second surface that is relative, and this permanent magnet rings is incorporated into this second surface, and this positioning part is for being the convex structure of crowned towards this second surface from this first surface.
3. radiation fan according to claim 2, is characterized in that, the first surface of this metal substrate is provided with several punching press depressions, and this positioning part is respectively to several protruding grain that should several punching press depressions.
4. radiation fan according to claim 2, is characterized in that, this metal substrate is provided with the several punching hole that run through this first surface and this second surface, and this positioning part is the lug that is formed at this punching hole periphery.
5. radiation fan according to claim 2, is characterized in that, forms a bend section between the first surface of this metal substrate and this second surface, and this positioning part is the madial wall of this bend section toward this central axis direction.
6. according to claim 1,2,3,4 or 5 described radiation fans, it is characterized in that, this motor comprises an axle bed and a coil groups, this impeller can be rotatably in conjunction with this axle bed, this coil groups is arranged at this axle bed outer periphery, has an axial air-gap between the coil groups of this permanent magnet rings and this motor.
7. according to claim 1,2,3,4 or 5 described radiation fans, it is characterized in that, several blades of this impeller are the plastic cement blade, and this plastic cement blade one is incorporated into the connecting part of this metal substrate.
8. according to claim 1,2,3,4 or 5 described radiation fans, it is characterized in that the inboard periphery that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
9. according to claim 1,2,3,4 or 5 described radiation fans, it is characterized in that the outboard peripheries that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
10. according to claim 1,2,3,4 or 5 described radiation fans, it is characterized in that, the fan frame comprises a baseplate part and a cover plate section, between this baseplate part and this cover plate section, a side wall section is set, this cover plate section is provided with this intake grill, this side wall section is provided with this exhaust outlet, and this motor is between this baseplate part and this cover plate section, to form the centrifugal fan mount structure.
11. the impeller of a radiation fan, is characterized in that, it comprises:
A metal substrate, have an axis part and be provided with several blades away from the ,Gai connecting part, a connecting part of this axis part, and this axis part is provided with at least one positioning part between the Ji Gai connecting part, and this at least one positioning part has first abutment edges;
A central shaft, be provided with a fixed connecting end, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this central shaft has central axis, and this central axis to the first abutment edges of this positioning part has first radial distance; And
A permanent magnet rings, be incorporated into this metal substrate, this permanent magnet rings has second abutment edges, the first abutment edges of this this positioning part of the second abutment edges butt, and this second abutment edges has second radial distance to the central point of this permanent magnet rings, and this second radial distance equals this first radial distance.
12. the impeller of radiation fan according to claim 11, it is characterized in that, this metal substrate has a first surface and a second surface that is relative, this permanent magnet rings is incorporated into this second surface, and this positioning part is for being the convex structure of crowned towards this second surface from this first surface.
13. the impeller of radiation fan according to claim 12, is characterized in that, the first surface of this metal substrate is provided with several punching press depressions, and this positioning part is respectively to several protruding grain that should several punching press depressions.
14. the impeller of radiation fan according to claim 12, is characterized in that, this metal substrate is provided with the several punching hole that run through this first surface and this second surface, and this positioning part is the lug that is formed at this punching hole periphery.
15. the impeller of radiation fan according to claim 12, is characterized in that, forms a bend section between the first surface of this metal substrate and this second surface, this positioning part is the madial wall of this bend section toward this central axis direction.
16. the impeller according to claim 11,12,13,14 or 15 described radiation fans, is characterized in that, several blades of this impeller are the plastic cement blade, and this plastic cement blade one is incorporated into the connecting part of this metal substrate.
17. the impeller according to claim 11,12,13,14 or 15 described radiation fans, is characterized in that, the inboard periphery that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
18. the impeller according to claim 11,12,13,14 or 15 described radiation fans, is characterized in that, the outboard peripheries that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
19. a radiation fan, is characterized in that, it comprises:
A fan frame, be provided with an intake grill and an exhaust outlet;
A motor, be arranged at this fan frame inside;
An impeller, can be rotatably in conjunction with this motor, and this impeller comprises;
A metal substrate, have an axis part and be provided with several blades away from the ,Gai connecting part, a connecting part of this axis part, and this blade is provided with at least one positioning part towards a lateral margin of this axis part, and this at least one positioning part has first abutment edges;
A central shaft, be provided with a fixed connecting end, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this central shaft has central axis, and this central axis to the first abutment edges of this positioning part has first radial distance; And
A permanent magnet rings, be incorporated into this metal substrate, this permanent magnet rings has second abutment edges, the first abutment edges of this this positioning part of the second abutment edges butt, and this second abutment edges has second radial distance to the central point of this permanent magnet rings, and this second radial distance equals this first radial distance.
20. radiation fan according to claim 19, it is characterized in that, this motor comprises an axle bed and a coil groups, and this impeller can be rotatably in conjunction with this axle bed, this coil groups is arranged at this axle bed outer periphery, between the coil groups of this permanent magnet rings and this motor, has axial air-gap.
21. radiation fan according to claim 19, is characterized in that, several blades of this impeller are the plastic cement blade, and this plastic cement blade one is incorporated into the connecting part of this metal substrate.
22. radiation fan according to claim 19, is characterized in that, the outboard peripheries that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
23. radiation fan according to claim 19, it is characterized in that, the fan frame comprises a baseplate part and a cover plate section, between this baseplate part and this cover plate section, a side wall section is set, this cover plate section is provided with this intake grill, this side wall section is provided with this exhaust outlet, and this motor is between this baseplate part and this cover plate section, to form the centrifugal fan mount structure.
24. the impeller of a radiation fan, is characterized in that, it comprises:
A metal substrate, have an axis part and be provided with several blades away from the ,Gai connecting part, a connecting part of this axis part, and this blade is provided with at least one positioning part towards a lateral margin of this axis part, and this at least one positioning part has first abutment edges;
A central shaft, be provided with a fixed connecting end, and this fixed connecting end is in conjunction with the axis part of this metal substrate, and this central shaft has central axis, and this central axis to the first abutment edges of this positioning part has first radial distance; And
A permanent magnet rings, be incorporated into this metal substrate, this permanent magnet rings has second abutment edges, the first abutment edges of this this positioning part of the second abutment edges butt, and this second abutment edges has second radial distance to the central point of this permanent magnet rings, and this second radial distance equals this first radial distance.
25. the impeller of radiation fan according to claim 24, is characterized in that, several blades of this impeller are the plastic cement blade, and this plastic cement blade one is incorporated into the connecting part of this metal substrate.
26. the impeller of radiation fan according to claim 24, is characterized in that, the outboard peripheries that the second abutment edges of this permanent magnet rings is this permanent magnet rings.
CN 201220565865 2012-10-23 2012-10-31 Cooling fan and fan wheel thereof Active CN202955001U (en)

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CN104295529A (en) * 2013-07-18 2015-01-21 日本电产株式会社 Blower fan
CN104295530A (en) * 2013-07-18 2015-01-21 日本电产株式会社 Blower fan and electronic device
US9348379B2 (en) 2013-08-07 2016-05-24 Nidec Corporation Fan
CN107919759A (en) * 2016-10-05 2018-04-17 昆山广兴电子有限公司 Micro motor and its rotor

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TWI674737B (en) * 2018-12-28 2019-10-11 建準電機工業股份有限公司 Motor and ceiling fan including the same

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JP3504827B2 (en) * 1997-06-16 2004-03-08 東京パーツ工業株式会社 Axial air fan motor
CN200985889Y (en) * 2006-08-14 2007-12-05 建凖电机工业股份有限公司 Small-sized blowing fan
TWM350746U (en) * 2008-10-13 2009-02-11 Forcecon Technology Co Ltd Thin-type fan rotor
TWM379924U (en) * 2009-09-30 2010-05-01 Asia Vital Components Co Ltd Stator structure and composition of motor and fan thereof

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CN104295529A (en) * 2013-07-18 2015-01-21 日本电产株式会社 Blower fan
CN104295530A (en) * 2013-07-18 2015-01-21 日本电产株式会社 Blower fan and electronic device
US9909591B2 (en) 2013-07-18 2018-03-06 Nidec Corporation Blower fan
US9348379B2 (en) 2013-08-07 2016-05-24 Nidec Corporation Fan
CN107919759A (en) * 2016-10-05 2018-04-17 昆山广兴电子有限公司 Micro motor and its rotor
CN107919759B (en) * 2016-10-05 2019-11-22 昆山广兴电子有限公司 Micro motor and its rotor

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CN103775360A (en) 2014-05-07
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