CN107709791A

CN107709791A - Fan and the ventilation assembly including the fan

Info

Publication number: CN107709791A
Application number: CN201680037080.5A
Authority: CN
Inventors: 彼得罗·德菲利皮斯
Original assignee: Spal SRL
Current assignee: SPAL Automotive SRL
Priority date: 2015-06-29
Filing date: 2016-06-29
Publication date: 2018-02-16
Anticipated expiration: 2036-06-29
Also published as: KR20180019615A; EP3314128B1; KR102560506B1; EP3314128A1; BR112017028106A2; WO2017002039A1; JP2018519471A; US20180187688A1; CN107709791B

Abstract

A kind of tube-axial fan (5), it has rotation axis (R) and including hub, the hub has bottom wall (16) and side wall (17), the side wall is stretched out from bottom wall (16) and has peripheral edge (18) on the side relative with bottom wall (16) along rotation axis (R), the fan includes the multiple blades (15) and at least one fin (19) that the outside of hub (14) is extend out to from side wall (17), the fin is in the inside of hub (14) and including the end part (20) outside the bottom wall (15) projecting axially beyond the cup-shaped structure for forming hub (14) and side wall (17), it is outside projecting axially beyond the end part (20) outside peripheral edge (18) that the fan is included in hub (14).

Description

Fan and the ventilation assembly including the fan

Technical field

The present invention relates to a kind of fan, and a kind of unit ventilators including fan and corresponding cover.

Background technology

Involved ventilation assembly is the ventilation assembly mainly formed by the support cover of fan and fan in this specification, its For cooling down the radiator in automobile equipment.

Fan is generally by electro-motor (preferably closed) structure for driving corresponding fan (being at present axial-flow type) Into.

Electro-motor has housing, a lid and output shaft for closing housing, the output shaft by cup hub securely It is fixed on fan, the cup hub accommodates motor body at least in part, and multiple blades are prominent from the cup hub.

Cover is arranged to be used for supporting motor by corresponding support ring, and for accommodating fan at least in part, So as to optimize the radiating of radiator.

Especially, cover mainly includes the outer tubular member of the end wall with substantial column, and support ring passes through in tubulose The multiple arms or spoke that component inside protrudes from cylindrical wall are connected to the outer tubular member.

Support ring is coaxial with cylindrical wall, and motor and support ring are axially mounted on.

The scheme of prior art has some shortcomings.

Positioning of the fan in cover and it is fixed from effectively removing and discharges electro-motor heat caused in operation, I.e., it is impossible to sufficiently cool lid and housing.

Generally speaking, the ring of the cover for supporting motor surrounds motor body, and does not allow to be suitable to take away in use to produce The airflow circulating of raw heat.

The hub of fan generally closes completely on motor, and also prevents by convection current to cool down the housing of electro-motor With the air circulation of lid.

Motor can not be cooled down and limit operation temperature, and therefore limit performance.

On the other hand, in the case where needing specific performance level, if motor is not cooled down suitably, motor Duration is restricted.

Under this background, it is a primary object of the present invention to eliminate disadvantages mentioned above.

The content of the invention

It is a goal of the present invention to provide excessively a kind of fan, and it is helped to create for cooling down electro-motor, particularly cooling down The air-flow of lid and Both.

For another target of the present invention to disclose a kind of ventilation assembly, it allows air to exist compared with the scheme of prior art The lid and casing surroundings of electro-motor preferably circulate.

It is by fan according to claim 1 and according to right in the above-mentioned technical purpose and objective spirit of the present invention It is required that what 10 ventilation assembly was realized.

Brief description of the drawings

Retouched by preferred but nonrestrictive the non-limiting of embodiment of the following ventilation assembly to shown in accompanying drawing State, the other feature and advantage of the present invention will be apparent, in the accompanying drawings：

Fig. 1 is the schematic perspective view according to the ventilation assembly of the present invention；

Fig. 2 is the second schematic perspective view of Fig. 1 ventilation assembly；

Fig. 3 shows the ventilation assembly of aforementioned figures with the schematic perspective view of decomposed, wherein in order to become apparent from And remove some parts；

Fig. 4 is the schematic cross sectional views of the ventilation assembly of the present invention, wherein removing some parts to become apparent from.

Especially, referring to Figures 1 and 2, reference 1 represents the ventilation assembly according to the present invention.

Embodiment

Ventilation assembly 1 preferably specifies the automobile equipment for radiator cooling field.

Ventilation assembly 1 includes the support cover 3 of fan 2 and fan 2 with rotation axis R.

Fan 2 includes electro-motor 4 and the fan 5 (or referred to as aerofoil fan) with axle stream, and the fan 5 is by motor 2 Drive and rotation axis R can be surrounded and rotate.

Especially as shown in figure 3, motor 4 is preferably to close and sealed, and it is essentially known type, thus only pin To understanding that part essential to the invention is described, the motor 4 include external shell 6, for close the lid 7 of housing with And axle 8 that is coaxial with axis R and being connected with fan 5.

Especially, axle 8 is included in the side relative with lid 7 end 9 prominent from housing 6, and fan 5 is connected to the end Portion, such as lead to interference fit to connect.

Cover 3 includes being used for the ring 10 for supporting motor 4, and motor 4 is fixed on the ring 10 by substantial known mode, example Such as fixed by the screw in the suitable protuberance that is stretched out from ring 10.

Motor 4 is inserted into the fixed inside of ring 10 and supported by ring 10.

Ring 10 has outer annular wall 11, and the multiple arms or spoke 12 of substantial known type are relative with electro-motor Side is prominent from the annular wall 11.

The axially projecting arrival lid 7 advantageously on the side relative with fan 5 of annular wall 11.

Wall 11 preferably has the radial dimension equal with the radial dimension of hub 14.

Cover 3 is included in the tubular element 13 outside ring 10, and arm 12 is connected to the tubular element 13.

Generally speaking, ventilation assembly 1 is arranged in common apparatus (not shown) by tubular element 13, the tubular element 13 support fan 2 further through arm 12 and ring 10.

Fan 5 is observed in more detail, it has to be noted that it includes cup hub 14 and multiple blades 15, and the blade 15 is from hub 14 stretch out and are preferably made for monomer with hub by shaping using plastic material.

As shown in figure 4, motor 4 is at least partially recessed into the inside of hub 14.

Hub 14 includes end wall 16, and fan 5 is connected to axle 8 by end wall 16.

Hub 14 includes the side wall 17 stretched out from end wall 16, and the side wall 17 is along side relative with end wall 16 rotation axis R It is upper that there is the peripheral edge 18 being substantially round.

End wall 16 and side wall 17 limit the cup-shaped structure of hub 14.

Blade 15 preferably the outside of cup-shaped structure from the side wall of hub 14 17 towards its outside extend.

Referring specifically to Fig. 3 and Fig. 4, it is observed that fan 5 is included in multiple fins 19 inside cup-shaped structure, its is preferred Monomer is made for hub 14, for producing tangential down current inside hub 14 in use, so as to be removed from electro-motor 4 Remove heat.

In shown preferred embodiment, fin 19 is angularly equally spaced inside hub 14, and is for example counted Measure as 7.

Each fin 19 includes part 20, and it protrudes outside the peripheral edge 18 of side wall 17 and projects to cup The outside of the outside of structure, i.e. hub 14.

Preferably, part 20 is held to project to the outer of hub 14 along the axial direction substantial parallel with the rotation axis R of fan 2 Portion.

In shown preferred embodiment, each fin 19 has Part I 21, and it is inside hub 14 from side wall 17 stretch out, preferably radially stretch out.

Part I 21 has the principal spread direction parallel with the rotation axis R of fan 5, and is preferably directed towards the interior of hub 14 Whole axial dimension extension of the portion along hub 14.

End part 20 preferably by Part I 21, at least a portion extension outside edge 18 limits.

In shown preferred embodiment, each fin 19 is included from end wall 16 towards the of the extension of the inside of hub 14 Two parts 22.

Each Part II 22 is connected and extended in corresponding Part I 21.

Each Part II 22 preferably have be essentially radial direction principal spread direction, and prolong towards the inside of hub 14 Stretch.

Referring specifically to Fig. 4, it is observed that fin 19 is essentially L-shaped, the wherein Part II 22 of radial direction and axial direction Part I 21 is located inside hub 14, and holds part 20 to stretch out hub 14.

Each end part 20 has internal edge 23 and the face towards the inside (that is, towards electro-motor 4) of hub 14 To the external margin 24 of the outside (that is, towards blade 15) of hub 14.

In shown preferred embodiment, external margin 24 and rotation axis R radial distance is less than side wall 17 and rotation Shaft axis R radial distance.

In fact, each end 20 becomes relative to the corresponding Part I 21 of corresponding fin 19 in radial directions Carefully.

In order to help the air moved by fin 19 to flow out in use, hub 14 is in end wall 16 and the bonding pad of side wall 17 There are multiple through holes 25 at domain 26.

Join domain 26 preferably has the extension of bending, and through hole 25 preferably has circular edge.

Heat in the air-flow with general axial component, removing from housing and lid is advantageous by through hole 25 from hub Flowed out in 14.

Referring specifically to Fig. 4, it is observed that annular wall 11 defines circular passage 27 together with the outer surface of electro-motor 4.

The inside of passage 27 is preferably at least partly inserted in the end part 20 of fin 19.

More precisely, as it was previously stated, end 20 attenuates, so as to insert the inside of passage 27.

The radial dimension that the side wall 11 of ring 10 has preferably is substantially corresponding to the radial dimension of hub 14, is particularly its side wall 17 radial dimension.More precisely, the side wall 17 of the inner surface of the substantial column of wall 11 and hub 14 has identical internal diameter.

In this way, tangential down current is guided in around the housing 6 and lid 7 of motor, to take away theirs Heat.

Especially, by fin, the part 20 that is extended to outside hub inside circular passage 27 determines to be used for cool down The component of the tangential gas flow of lid.

Claims

1. a kind of aerofoil fan, it has rotation axis (R) and includes bottom wall (16) and side wall including hub (14), the hub (14) (17), the side wall (17) is stretched out from bottom wall (16) and had along rotation axis (R) on the side relative with bottom wall (16) outer Peripheral edge (18), bottom wall (16) and side wall (17) form the cup-shaped structure of hub (14), and the fan includes：

Multiple blades (15), it extend out to the outside of cup-shaped structure from side wall (17)；

At least one fin (19), its in the inside of cup-shaped structure, for tangential gas flow to be produced inside the hub (14) in use,

The fan is characterised by that fin (19) is included in the prominent end exceeded outside peripheral edge (18) outside hub (14) Divide (20).

2. fan according to claim 1, wherein, fin (19) has to be extended from side wall (17) towards the inside of hub (14) Part I (21), end part (20) limited by least a portion extension of Part I (21).

3. fan according to claim 2, wherein, Part I (21) is parallel to rotation axis (R).

4. fan according to any one of claim 1 to 3, wherein, fin (19) is included from bottom wall (16) towards hub (14) Part II (22) of inside extension.

5. fan according to claim 4, wherein, Part II (22) is radially extending rotation axis (R).

6. according to the fan described in any one of foregoing claim, wherein, end part (20) is predominantly parallel to rotation axis (R) and prolonged Stretch.

7. according to the fan described in any one of foregoing claim, wherein, bottom wall (16) is being connected by hub (14) with side wall (17) Region (26) place connect has multiple through holes (25).

8. according to the fan described in any one of foregoing claim, wherein, end part (20) has towards the interior of hub (14) inside Portion edge (23) and the external margin (24) towards hub (14) outside, determine between external margin (24) and rotation axis (R) The radial distance of position is less than the radial distance between side wall (17) and rotation axis (R).

9. according to the fan described in any one of foregoing claim, wherein, hub (14), blade (15) and fin (19) pass through shaping It is made into single part.

10. a kind of ventilation assembly, it includes the support cover (3) of fan (2) and fan (2),

Fan (2) includes electro-motor (4) and the fan (5) by electrical motor driven,

Electro-motor (4) includes housing (6), the lid (7) for closing housing (6) and the axle (8) being connected with fan (5),

Cover (3) includes the support ring (10) of electro-motor (4), and the support ring (10) has outer annular wall (11),

The ventilation assembly is characterised by that fan (5) is the type according to any one of claim 1 to 9, and electric Dynamic motor (4) is at least partially recessed into the inside of hub (14).

11. ventilation assembly according to claim 10, wherein, outer annular wall (11) defines together with electro-motor (4) Circular passage (27), the end part (20) of fin (19) are inserted in circular passage (27) at least in part.

12. the ventilation assembly according to claim 10 or 11, wherein, axle (8) be included on side relative with lid (7) from The prominent end part (9) of housing (6), the hub (14) of fan (5) are connected to the end part (9), outer annular wall (11) with It is axially extending on the relative side of fan (5) to reach lid (7).

13. the ventilation assembly according to any one of claim 10 to 12, wherein, the radial direction that outer annular wall (11) has Size is equal to the radial dimension of hub (14).