CN105041688A - Electric cooling fan - Google Patents
Electric cooling fan Download PDFInfo
- Publication number
- CN105041688A CN105041688A CN201510133344.4A CN201510133344A CN105041688A CN 105041688 A CN105041688 A CN 105041688A CN 201510133344 A CN201510133344 A CN 201510133344A CN 105041688 A CN105041688 A CN 105041688A
- Authority
- CN
- China
- Prior art keywords
- wheel hub
- rotor
- fan
- damper parts
- electric fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses an electric cooling fan including an electric motor and an axial fan. The electric motor includes a rotor and a stator. The axial fan includes a hub. A series of blades extend from the hub. The hub is attached to a rotor of an electric motor at one or more points of connection by respective connecting devices. Each connecting device includes an annular damper, arranged in an opening of the hub, and through which a screw passes. Placed between the damper and the screw is a rigid element having one end resting against the rotor. The other end has an annular flange-like formation disposed between the damper and a head of the screw. The rigid element has an annular skirt which extends from the flange-like formation, around the damper, up to a preset distance from the hub of the fan, such that when the fan performs an oscillation greater than a predetermined extent, it impacts this skirt thereby limiting its oscillation.
Description
Technical field
The present invention relates to a kind of by motor-driven fan, particularly a kind of electric fan be applied in motor vehicle heat exchanger.
Background technique
Electric fan under prior art generally includes electric motor and axial fan, described electric motor comprises rotor and stator, described axial fan comprises wheel hub, from a series of blades that wheel hub extends, described rotor is connected on one or more point on wheel hub or join domain, on these points or join domain, described wheel hub is connected to rotor by the connection set including ring damper parts, described damper parts are arranged on the opening of wheel hub, pass for a fastening piece, one tubular part is placed between described damper parts and fastening piece, it comprises one end for described rotor of conflicting, one end is that a flange arrangement is for damper parts of conflicting in addition.The connection set including damper parts in said structure can reduce the vibration be transferred to from motor on fan, thus reduces noise.But although above-mentioned structure can solve noise problem, the elastic damper parts used can make the connection between fan and rotor become very stiff.
Simultaneously, test according to existing vehicular manufacturer proves, above-mentioned method also just can weaken the vibration in preset range, and when the electric fan on vehicle is when suffering from a larger angular acceleration, corresponding vibration also will exceed maximum magnitude, and above-mentioned method just cannot weaken described vibration well.
In view of this, be necessary to develop a kind of electric fan, it can reduce the noise that vibration produces.
Summary of the invention
Object of the present invention aims to provide a kind of electric fan, solves the problem of above-mentioned noise.
The electric fan of described type provided by the invention includes:
Comprise electric motor and axial fan, described electric motor comprises rotor and stator, described axial fan comprises wheel hub, a series of blade is extended from wheel hub, described rotor is connected on one or more point on wheel hub or join domain, on these points or join domain, described wheel hub is connected to rotor by the connection set including ring damper parts, described damper element portion is contained on opening that described wheel hub is offered, pass for a fastening piece, a tubular part is also placed with between described damper parts and fastening piece, described tubular part comprises one end for described rotor of conflicting, one end is that a flange arrangement is for damper parts of conflicting in addition, the edge of described flange arrangement extends upward a sleeve along the side near wheel hub, a distance is had between the bottom margin of this sleeve and wheel hub, so, when fan exceedes the vibration of preset range relative to rotor execution one, it carries out with sleeve the vibration colliding to limit himself.
The more feature of the present invention and advantage significantly embody in following description in detail.Described description in detail relates to example and the accompanying drawing of following indefiniteness.
In the present invention, above-mentioned optimum condition can combination in any on the basis meeting related domain general knowledge, obtains each preferred embodiment of the present invention.
Electric fan of the present invention, is come around described damper parts by the sleeve that extends from tubular part, realizes axial fan collide with sleeve when rotating and weaken the rotation of self with this, thus reduces the noise that vibration causes.
Accompanying drawing explanation
Fig. 1 is the front elevation of an electric fan provided by the invention.
Fig. 2 is the partial view of the wheel hub of electric fan under a magnification ratio.
Fig. 3 is the phantom of Fig. 2 linearly III-III.
Embodiment
In following elaboration, the object be all for setting forth as details such as specific technique, interface, technology is not construed as limiting, to ensure that disclosed technological scheme can be understood in detail thoroughly here.But, those skilled in the art can understand, here the technology disclosed can be used in the specific embodiment beyond these details, engineering philosophy can be implemented as various mode of execution by such one of ordinary skill in the art, even if these mode of executions are not described in detail herein or show, but these mode of executions still drop in the middle of engineering philosophy, do not exceed its spirit and scope.In certain embodiments, some equipment known, circuit and methods are not described in detail, in order to avoid technology disclosed here describes be subject to unnecessary details redundancy elaboration.All here carry out relevant principle, visual angle and specific embodiment elaboration include the equivalent way of 26S Proteasome Structure and Function.In addition, the equivalent that these equivalent way comprise current known equivalent and further develop, such as the made further progress element can implementing said function, even if structure may be different.
Please refer to shown in Fig. 1 to Fig. 2, in known technology, described electric fan 1 comprises supporting structure or the air guide channel 2 of a tabular.This supporting structure or air guide channel 2 offer a ring opening 3.Described ring opening 3 is rotatably installed with an axial fan 4.
Please also refer to shown in Fig. 3, described axial fan 4 is connected on the rotor 8 of an electric motor 5.
Described electric motor 5 comprises a stator 6.Described stator 6 is fixed on supporting structure or air guide channel 2 by a known mode.Such as, described known mode be can be and realized by a series of spoke 7.
Described electric motor 5 also comprises a rotor 8.Described rotor 8 comprises an end cap 8a.
Described axial fan 4 comprises a wheel hub 9.Edge along described wheel hub 9 extends to form a series of bending blade 10.The outward edge of described a series of blade 10 contacts with a chow ring 11.
In the present embodiment, the wheel hub 9 of described axial fan 4 is connected on the end cap 8a on the rotor 8 of electric motor 5 by the one or more point on it or join domain 12.In the present embodiment, the quantity of described multiple point or join domain 12 is 3.Described three points or join domain 12 to described fan axle X-X between distance d be equal.In the present embodiment, the wheel hub 9 of described axial fan 4 is a cup shape.Described wheel hub 9 comprises a base portion 9a and the edge axially extended ring sidewall 9b along described base portion 9a.In present embodiment, described sidewall 9b is roughly a cylindrical body.
The end cap 8a of the rotor 8 on described electric motor 5 extends along on the direction near base portion 9a with the base portion 9a close to described wheel hub 9, thus to be connected to by end cap 8a on three points on the base portion 9a of described wheel hub 9 or join domain 12 by multiple connection sets 13 of including elastic vibration damper.
Refer again to shown in Fig. 3, each connection set 3 comprises the damper parts 14 of an annular.Described damper parts 14 are made up of elastic material, such as, and elastomeric material (vulcanized rubber).
Each damper parts 14 are partially housed in the corresponding through hole 9c that described wheel hub 9a offers.In the present embodiment, described damper parts 14 are roughly the ring of a cylindrical shape, and its axial intermediate portion is a circumferential groove 14a, for engaging with the edge of the through hole 9c that described wheel hub 9 is offered.
Described fan 9 also comprises multiple fastening piece 15.Each fastening piece 15 through the through hole 8b on described damper parts 14 and end cap 8a so that the base portion 9a of wheel hub 9 is fixed on the end cap 8a of rotor 8.In present embodiment, described fastening piece 15 can be screw or the bolt that comprises head 15a.Screw-thread fit on the opening 8b that screw thread on described fastening piece 15 and described end cap 8a offer with fixing described fastening piece 15 on described end cap 8a.
Described fan 9 also comprises the tubular part 16 be positioned between described damper parts 14 and described fastening piece 15.In present embodiment, described tubular part 16 is made for rigid material, such as, and metallic material etc.In traditional sense, an end of described tubular part 16 is a flange arrangement 16a.Described flange arrangement 16a is placed between the head 15a of described fastening piece 15 end adjacent with described damper parts 14, and conflict described end cap 8a for the other end of described tubular part 16.
Further, described tubular part 16 also comprise a ring sleeve 16b its along described flange arrangement 16a near wheel hub 9 direction on extend to form.Around described damper parts 14, and between the bottom margin of described sleeve 16b and wheel hub 9, there is a distance z preset in described sleeve 16b.
Above-mentioned configuration, make when described axial fan 4 exceedes the vibration of preset range relative to described end cap 8a execution one, described fan 4 can collide the edge of the bottom of described sleeve 16b, thus limits himself vibration, reduces noise.
Described axial fan 4 can edge bottom the maximum magnitude of allowable vibration and sleeve 16b relevant to the distance z between wheel hub 9.
Although the foregoing describe many specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, do not form the restriction of the technical program.Protection scope of the present invention limited by appended claims and equivalent thereof.Therefore, the scope that this technology discloses comprises the change that those those skilled in the art make in apparent scope.Unless really like this illustrated, mentioned " single " does not refer to " one and only have one ", and refers to " one or more ".Said structure, component and functionally equivalent are included by reference especially and are comprised by claim for one of ordinary skill in the art.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these mode of executions, but these change and amendment all falls into protection scope of the present invention.
Claims (8)
1. an electric fan (1), comprises an electric motor (5) and an axial fan (4); described electric motor (5) comprises a rotor (8) and a stator (6), described axial fan (4) comprises a wheel hub (9), a series of blade (10) is extended and described wheel hub (9) is connected on rotor (8) by the one or more point on it or join domain (12) along described wheel hub (9), on each point described or join domain (12), described wheel hub (9) comprises a connection set (13) with flexible ring damper parts (14) by one and is connected on described rotor (8), described damper parts (14) are arranged in the through hole (9c) that described wheel hub (9) is offered, pass for a fastening piece (15), a tubular part (16) is placed with between described fastening piece (15) and described damper parts (14), conflict described rotor (8) in one end of described tubular part (16), the other end is the flange arrangement (16a) of an annular, for a sidewall of described damper parts (14) of conflicting, it is characterized in that: described flange arrangement (16a) extends to form a sleeve (16b) along edge on the direction near described wheel hub (9), described sleeve (16b) is around described damper parts (14), a distance (z) is there is in the edge of described sleeve (16b) bottom between described wheel hub (9), when described axial fan (4) exceedes the vibration of preset range relative to described rotor (8) execution one, described axial fan (4) collides described sleeve (16b), to limit the vibration of himself.
2. electric fan (1) as claimed in claim 1, it is characterized in that: described wheel hub (9) is a cup-like structure, it comprises a base portion (9a) and a ring sidewall (9b) extended to form vertically along the edge of base portion (9a), described rotor (8) comprises an end cap (8a), described end cap (8a) extends the base portion (9a) near described wheel hub (9), the base portion (9a) of described wheel hub (9) is connected to described end cap (8a) by one or more connection set (13) including damper parts (14) respectively.
3. electric fan (1) as claimed in claim 2, is characterized in that: described sidewall (9b) is a cylindrical shape.
4. electric fan (1) as claimed in claim 1 or 2, is characterized in that: described ring damper parts are made up of elastomeric material.
5. electric fan (1) as claimed in claim 1 or 2, it is characterized in that: described damper parts (14) are the ring of a cylindrical shape, its axial intermediate portion is a circumferential groove (14a), and described circumferential groove (14a) engages with the edge of the through hole (9c) that described wheel hub (9) is offered.
6. electric fan (1) as claimed in claim 1, it is characterized in that: described fastening piece (15) is screw or a bolt with head (15a), and described head (15a) is through the flange arrangement (16a) of described tubular part (16).
7. electric fan (1) as claimed in claim 1, is characterized in that: described tubular part (16) is made for rigid material.
8. electric fan (1) as claimed in claim 7, is characterized in that: described rigid material is metallic material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2014A000321 | 2014-04-15 | ||
| ITTO20140321 | 2014-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105041688A true CN105041688A (en) | 2015-11-11 |
Family
ID=50983025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510133344.4A Withdrawn CN105041688A (en) | 2014-04-15 | 2015-03-25 | Electric cooling fan |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150292512A1 (en) |
| JP (1) | JP2015203419A (en) |
| CN (1) | CN105041688A (en) |
| BR (1) | BR102015008287A2 (en) |
| DE (1) | DE102015105715A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177957B (en) * | 2020-09-28 | 2022-11-08 | 江苏飓风环保科技有限公司 | Portable workshop dust exhausting fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2773365A (en) * | 1953-11-23 | 1956-12-11 | George A Delf | Vibration-damping hub and shaft assemblies |
| US4511310A (en) * | 1984-03-02 | 1985-04-16 | Robbins & Myers, Inc. | Ceiling fan blade isolation |
| US4917573A (en) * | 1989-05-31 | 1990-04-17 | Deere & Company | Cooling fan isolation mount |
| US6505807B1 (en) * | 2000-01-20 | 2003-01-14 | Robert Bosch Gmbh | Blower motor with annular damping element |
| CN1447882A (en) * | 2000-06-20 | 2003-10-08 | 通用电气公司 | Methods and appts. for reducing viberations induced within fan assemblies |
| US20050279910A1 (en) * | 2004-06-17 | 2005-12-22 | Anand Huprikar | Mount assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3315343A1 (en) * | 1983-04-28 | 1984-10-31 | Daimler-Benz Ag, 7000 Stuttgart | COOLING DEVICE, IN PARTICULAR FOR A LIQUID-COOLED INTERNAL COMBUSTION ENGINE |
-
2015
- 2015-03-25 CN CN201510133344.4A patent/CN105041688A/en not_active Withdrawn
- 2015-04-14 BR BR102015008287A patent/BR102015008287A2/en not_active IP Right Cessation
- 2015-04-15 DE DE102015105715.8A patent/DE102015105715A1/en not_active Withdrawn
- 2015-04-15 JP JP2015083066A patent/JP2015203419A/en not_active Abandoned
- 2015-04-15 US US14/687,429 patent/US20150292512A1/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2773365A (en) * | 1953-11-23 | 1956-12-11 | George A Delf | Vibration-damping hub and shaft assemblies |
| US4511310A (en) * | 1984-03-02 | 1985-04-16 | Robbins & Myers, Inc. | Ceiling fan blade isolation |
| US4917573A (en) * | 1989-05-31 | 1990-04-17 | Deere & Company | Cooling fan isolation mount |
| US6505807B1 (en) * | 2000-01-20 | 2003-01-14 | Robert Bosch Gmbh | Blower motor with annular damping element |
| CN1447882A (en) * | 2000-06-20 | 2003-10-08 | 通用电气公司 | Methods and appts. for reducing viberations induced within fan assemblies |
| US20050279910A1 (en) * | 2004-06-17 | 2005-12-22 | Anand Huprikar | Mount assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| BR102015008287A2 (en) | 2016-03-29 |
| JP2015203419A (en) | 2015-11-16 |
| US20150292512A1 (en) | 2015-10-15 |
| DE102015105715A1 (en) | 2015-10-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151111 |