CN1508444A - Cooling fan for electric motor - Google Patents
Cooling fan for electric motor Download PDFInfo
- Publication number
- CN1508444A CN1508444A CNA021567581A CN02156758A CN1508444A CN 1508444 A CN1508444 A CN 1508444A CN A021567581 A CNA021567581 A CN A021567581A CN 02156758 A CN02156758 A CN 02156758A CN 1508444 A CN1508444 A CN 1508444A
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- China
- Prior art keywords
- mentioned
- cooling fan
- blade
- motor
- cooled
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Abstract
The invention is a kind of cooling fan for electric machine, which comprises: the shaft for fixing the fan; several cooling vanes at the inner side of the shaft; the vane connecting part on the outside end of the vane in order to fix the vane with two vanes as a group.
Description
Technical field
The present invention relates to a kind of cooling fan of machine field, particularly relate to a kind of motor cooling fan that can prevent the bending of cooled blade and save material.
Background technique
Fig. 1, Fig. 2 represent existing technology, and Fig. 1 possesses a part of sectional drawing of motor with the motor of cooling fan, and Fig. 2 is the plan view of Fig. 1 motor with cooling fan.
The motor that possesses cooling fan that prior art is made is by forming as the bottom: running shaft 11; The rotor 13 that combines with above-mentioned running shaft 11; Be installed in above-mentioned rotor 13 around and be wound with the fixture (not shown) of coil; Be installed in the cooling fan 20 that above-mentioned running shaft 11 and cooling are wrapped in the coil of said fixing device; Respectively be installed in the bearing 17,18 at above-mentioned running shaft 11 two ends.And above-mentioned rotor 13 is pressed into running shaft and is fixed up; Above-mentioned cooling fan 20 screw (not shown in the figures showing) that is fixed is fixed on the running shaft 11.
Fig. 2 is the plan view of Fig. 1 cooling fan.
Above-mentioned cooling fan 20 is by forming as the bottom: the wheel shaft 21 that is connected to running shaft 11 by the hollow 22 that is inserted into above-mentioned running shaft 11; An inboard end 2 3a are the cooled blade 23 of spoke fixed in shape on above-mentioned wheel shaft 21; Be positioned at the blade joint 24 of above-mentioned cooled blade 23 and fixing above-mentioned cooled blade 23.
In order to reduce weight, as long as the size of above-mentioned wheel shaft 21 is able to be combined on the above-mentioned running shaft 11, the inboard one end 23a of above-mentioned cooled blade 23 needn't all be fixed up.
Above-mentioned cooled blade 23 is by forming as the bottom: the inboard one end 23a that is incorporated into above-mentioned wheel shaft 21; Be positioned at the opposition side of an above-mentioned inboard end 23a and be incorporated into the outside one end 23b of above-mentioned blade attachment portion 24; Lower end 23d towards above-mentioned motor side; Be positioned at the upper end 23c of above-mentioned lower end 23d opposition side; In order to be the air-supply face (23e) of wing profile (not shown) being blown into above-mentioned lower end 23d from above-mentioned upper end 23c.
Above-mentioned wing profile (not shown) is gone up fine formation at above-mentioned air-supply face (23e), and different and different according to the sense of rotation of the direction of wind and above-mentioned motor, and the shape of this wing profile (not shown) is widely known by the people.
Above-mentioned blade joint 24 is ring structure and will connects above-mentioned all cooled blades 23.Above-mentioned blade joint 24 can prevent that above-mentioned cooled blade 23 is along the bending on above-mentioned cooling fan 20 radial directions and above-mentioned motor shaft 11 axis.
But above-mentioned blade joint 24 is at the whole above-mentioned cooled blade 23 of the outside of above-mentioned cooled blade 23 end 23b parcel, therefore, increase the whole moment of inertia of above-mentioned cooling fan 20 greatly, thereby, hinder the agility rotation of above-mentioned motor, also increase fabricating cost greatly.
This shows that above-mentioned existing cooling fan still has many defectives, and the assistant officer treats further to be improved.
The problem that exists for the cooling fan that solves motor, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that the cooling fan of above-mentioned prior motor exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, actively studied innovation, in the hope of founding a kind of cooling fan of new structure, can improve general existing on the market conventional cooling fan structure, make it have more practicability.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcomes the defective that existing cooling fan exists, and is to make its moment of inertia that can reduce cooling fan and reduce manufacture cost and a kind of motor cooling fan of new structure, technical problem underlying to be solved are provided.
Order technical problem underlying of the present invention realizes by the following technical solutions.According to a kind of motor cooling fan that the present invention proposes, it comprises: the wheel shaft that is installed in the cooling fan center for fixing cooling fan; Be fixed in a plurality of cooled blades of inboard one end of above-mentioned wheel shaft; For above-mentioned cooled blade is fixed in the blade attachment portion of the above-mentioned cooled blade outside one end more than 2 as 1 group being fixed up, being provided with.
The object of the invention to solve the technical problems can also adopt following technical measures further to realize.
Aforesaid motor cooling fan, wherein said cooled blade have only the upper end side of an inboard end to becheduled on the wheel shaft, and above-mentioned blade joint is installed in the lower end of the above-mentioned cooled blade outside one end.
Aforesaid motor cooling fan, it comprises: for fixing cooling fan and be installed in the wheel shaft at cooling fan center; Be fixed in a plurality of cooled blades of inboard one end of above-mentioned wheel shaft; For above-mentioned cooled blade 1 group is fixed up more than 3, be fixed in the blade attachment portion of the above-mentioned cooled blade outside one end;
The present invention compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, motor of the present invention can prevent the axial direction bending of above-mentioned cooled blade at the radial direction and the motor shaft of cooling fan with cooling fan, save fabricating cost and can significantly reduce moment of inertia, therefore, can make the driving of motor become quick.
In sum, the motor cooling fan of special construction of the present invention, have above-mentioned many advantages and use value, and in like product, do not see have similar structural design to publish or use, no matter and its structurally or bigger improvement is all arranged on the function, have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the cut-away section schematic representation of prior motor with the motor of cooling fan.
Fig. 2 is the plan view of Fig. 1 motor with cooling fan.
Fig. 3 is the cut-away section schematic representation of motor of the present invention with the motor of cooling fan.
Fig. 4 is the plan view of Fig. 3 motor with cooling fan.
* is to the symbol description * * of drawing major component
11: motor shaft 17,18; Bearing
13; Rotor 120: cooling fan
121: wheel shaft hollow; 122
123: cooled blade 123a: an inboard end
123b: the outside one end 123c; The cooled blade upper end
123d; Cooled blade lower end 124: blade attachment portion
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to the motor cooling fan that foundation the present invention proposes, its embodiment, structure, feature and effect thereof, describe in detail as after.
Just, when the present invention will be described,, well-known function or structure are not carried out specific description in order not upset the main points of explanation.
See also Fig. 3, Figure 4 shows that one embodiment of the present of invention, Fig. 3 possesses the fragmentary cross-sectional view of motor with the motor of cooling fan, and Fig. 4 is the plan view of Fig. 3 motor with cooling fan.It mainly comprises: running shaft 11; The rotor 13 that combines with above-mentioned running shaft 11; Be installed in above-mentioned rotor 13 around and be wound with the fixture (not shown) of coil; Be installed in the cooling fan 120 that above-mentioned running shaft 11 and cooling are wrapped in the coil of said fixing device; Respectively be installed in the bearing 17,18 at above-mentioned running shaft 11 two ends.And above-mentioned rotor 13 is pressed into running shaft and is fixed up; The above-mentioned cooling fan 120 screw (not shown) that is fixed is fixed on the running shaft 11.
Fig. 4 is the plan view of Fig. 3 cooling fan.Above-mentioned cooling fan 120 is by forming as the bottom: the wheel shaft 121 that is connected to running shaft 11 by the hollow 122 that is inserted into above-mentioned running shaft 11; An inboard end 123a is the cooled blade 123 of spoke fixed in shape on above-mentioned wheel shaft 121; Be positioned at the blade joint 124 of above-mentioned cooled blade 123b and fixing above-mentioned cooled blade 123.
In order to reduce weight, as long as the size of above-mentioned wheel shaft 121 is designed to be able to be combined on the above-mentioned running shaft 11, the inboard one end 123a of above-mentioned cooled blade 123 needn't all be fixed up.
Above-mentioned cooled blade 123 is by forming as the bottom: the inboard one end 123a that is incorporated into above-mentioned wheel shaft 121; Be positioned at the opposition side of an above-mentioned inboard end 123a and be incorporated into the outside one end 123b of above-mentioned blade attachment portion 124; Lower end 123d towards above-mentioned motor side; Be positioned at the upper end 123c of above-mentioned lower end 123d opposition side; In order to be the air-supply face (123e) of wing profile (not shown) being blown into above-mentioned lower end 123d from above-mentioned upper end 123c.Above-mentioned wing profile (not shown) is gone up fine formation at above-mentioned air-supply face (123e), and different and different according to the sense of rotation of the direction of wind and above-mentioned motor, and the shape of this wing profile (not shown) is widely known by the people.
Above-mentioned blade joint 124 can not installed between each group and state blade joint 124 above-mentioned 2 cooled blades 123 in conjunction with forming 1 group.Above-mentioned blade joint 124 can prevent that above-mentioned cooled blade 123 is along the bending on above-mentioned cooling fan 20 radial directions and above-mentioned motor shaft 11 axis.
Above-mentioned blade joint 124 is installed in the lower end of the side one end 123b of above-mentioned cooled blade.Because above-mentioned wheel shaft 121 is connected in the upper end side of the inboard one end 123a of above-mentioned cooled blade 123, therefore, above-mentioned joint is fixed on the lower end side of above-mentioned cooled blade 123, help strengthening the intensity of above-mentioned cooled blade 123.
In addition, in the embodiments of the invention, above-mentioned blade joint 124 just is combined into 1 group to 2 above-mentioned cooled blades, but also can be combined into 1 group to the cooled blade more than 3 123.
Below, the action of this example cooling fan is described.
Above-mentioned electric motor starting and when driving motor shaft 11 rotation, the above-mentioned cooling fan 120 that is fixed in above-mentioned motor shaft 11 also begins rotation.Along with the rotation of cooling fan 120,, form wind from the upper end 123c of above-mentioned cooled blade 123 to lower end 123d, by the above-mentioned motor of the air cooling of above-mentioned lower end 123d according to above-mentioned cooled blade 123 formed wing profile (not shown).
When above-mentioned cooling fan 120 was rotated, above-mentioned blade joint 124 can prevent that above-mentioned cooled blade 123 is along the bending on above-mentioned cooling fan 120 radial directions and above-mentioned motor shaft 11 axis.
In addition,, therefore, reduced weight, reduced fabricating cost, and significantly reduced moment of inertia, therefore, made above-mentioned motor become very sensitive because 124 of above-mentioned blade joints have wrapped up above-mentioned cooling fan 120 part on every side.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (3)
1, a kind of motor cooling fan is characterized in that it comprises:
For fixing cooling fan and be installed in the wheel shaft at cooling fan center;
Be fixed in a plurality of cooled blades of inboard one end of above-mentioned wheel shaft;
For 2 of above-mentioned cooled blades are fixed in the blade attachment portions of the above-mentioned cooled blade outside one end as 1 group being fixed up, being provided with.
2, motor cooling fan according to claim 1 is characterized in that wherein said cooled blade has only the upper end side of an inboard end to becheduled on the wheel shaft, and above-mentioned blade joint is installed in the lower end of the above-mentioned cooled blade outside one end.
3, a kind of motor cooling fan is characterized in that it comprises:
For fixing cooling fan and be installed in the wheel shaft at cooling fan center;
Be fixed in a plurality of cooled blades of inboard one end of above-mentioned wheel shaft;
For above-mentioned cooled blade 1 group is fixed up more than 3, be fixed in the blade attachment portion of the above-mentioned cooled blade outside one end;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021567581A CN1304759C (en) | 2002-12-17 | 2002-12-17 | Cooling fan for electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021567581A CN1304759C (en) | 2002-12-17 | 2002-12-17 | Cooling fan for electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508444A true CN1508444A (en) | 2004-06-30 |
| CN1304759C CN1304759C (en) | 2007-03-14 |
Family
ID=34236387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021567581A Expired - Fee Related CN1304759C (en) | 2002-12-17 | 2002-12-17 | Cooling fan for electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1304759C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075366A (en) * | 2013-01-16 | 2013-05-01 | 深圳市英威腾交通技术有限公司 | Method for determining blade distribution of fan blades, motor and motor fan thereof |
| CN103388591A (en) * | 2012-05-07 | 2013-11-13 | 协禧电机股份有限公司 | Cooling fan |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244347A (en) * | 1991-10-11 | 1993-09-14 | Siemens Automotive Limited | High efficiency, low noise, axial flow fan |
| CN2125748U (en) * | 1992-05-08 | 1992-12-23 | 傅玉源 | Fan for automobile radiator |
| US5577888A (en) * | 1995-06-23 | 1996-11-26 | Siemens Electric Limited | High efficiency, low-noise, axial fan assembly |
| JPH09257114A (en) * | 1996-03-26 | 1997-09-30 | Mazda Motor Corp | Blade attachment structure for torque converter |
| CN2405054Y (en) * | 1999-10-20 | 2000-11-08 | 台达电子工业股份有限公司 | Vane of electric fan |
| ES2253447T3 (en) * | 2000-11-08 | 2006-06-01 | Robert Bosch Corporation | AXIAL FAN OF HIGH PERFORMANCE AND ADAPTED TO THE AIR INPUT. |
-
2002
- 2002-12-17 CN CNB021567581A patent/CN1304759C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388591A (en) * | 2012-05-07 | 2013-11-13 | 协禧电机股份有限公司 | Cooling fan |
| CN103388591B (en) * | 2012-05-07 | 2016-02-03 | 协禧电机股份有限公司 | Radiation fan |
| CN103075366A (en) * | 2013-01-16 | 2013-05-01 | 深圳市英威腾交通技术有限公司 | Method for determining blade distribution of fan blades, motor and motor fan thereof |
| CN103075366B (en) * | 2013-01-16 | 2015-07-15 | 深圳市英威腾交通技术有限公司 | Method for determining blade distribution of fan blades, motor and motor fan thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1304759C (en) | 2007-03-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20100118 |