CN107046347B - Motor with radiator - Google Patents
Motor with radiator Download PDFInfo
- Publication number
- CN107046347B CN107046347B CN201710127416.3A CN201710127416A CN107046347B CN 107046347 B CN107046347 B CN 107046347B CN 201710127416 A CN201710127416 A CN 201710127416A CN 107046347 B CN107046347 B CN 107046347B
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- CN
- China
- Prior art keywords
- motor
- rotor
- fan
- stator
- propeller
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of motors with radiator, the motor includes a shell, a motor shaft, a motor stator and a rotor are provided in shell, motor stator includes stator winding, rotor fixation is nested on motor shaft, and the motor further includes one for carrying out cooling fan to rotor, and fan is rotatably nested on motor shaft, when motor works, rotor and the rotation of fan opposite direction.The invention enables heat dissipation effect of the fan for rotor is preferable.
Description
Technical field
The present invention relates to a kind of motors with radiator.
Background technique
Motor is widely used in the key areas such as traffic, national defence, space flight as a kind of power-equipment.Nowadays, advanced skill
Art proposes high power density to motor, the requirement of high efficiency and high reliability, but with output power of motor and revolving speed
Increase, the heat dissipation of rotor and high temperature problem become an important factor for restricting motor technology development.For alternating current generator, especially
It is permanent magnet synchronous motor, and with the raising of rotor revolving speed, the loss of rotor core and magnetic sheet causes temperature of rotor to improve,
This not only lowers the working life of permanent magnet, lead to that the motor feels hot, while also constraining the output power of motor.
In order to improve the heat dissipation effect of rotor, has at present and fan is set in motor to radiate to rotor
Scheme, as the Chinese patent of Patent No. 200810167793.0 discloses a kind of air cooling system of motor, but in the program
In, fan and rotor rotate synchronously, and air-flow caused by fan is limited for the heat dissipation effect of rotor.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of motor with radiator, make fan for
The heat dissipation effect of rotor is preferable.
In order to solve the above technical problems, the motor provided by the invention with radiator, the motor includes a shell
Body is provided with a motor shaft, a motor stator and a rotor in shell, and motor stator includes stator winding, rotor
Fixation is nested on motor shaft, and the motor further includes one for carrying out cooling fan to rotor, and fan is rotatable
Be nested on motor shaft, motor work when, rotor and fan opposite direction rotation.
Preferably, the fan includes a fan propeller and several fan blade being arranged on fan propeller, wind
Fanning has several permanent magnets on the circumferential surface of rotor, rotor is different with the number of poles of fan propeller, and the stator winding is can
Generate the Double Layer Winding that the rotating excitation field of a pair of of opposite direction is rotated with driving motor rotor and fan propeller opposite direction.
Preferably, being provided with several first through hole for axially penetrating through rotor, fan on the rotor
Several the second through-holes for axially penetrating through fan propeller are provided on rotor.
After using the above structure, compared with prior art, the present invention having the advantage that
Motor of the invention, when due to motor work, rotor and the rotation of fan opposite direction, in this way, improving electricity
Machine rotor inside and outside axial air flowing, so that the heat dissipation effect of rotor improves.
Moreover, the present invention, which does not need additionally to be arranged driving mechanism, carrys out driving fan rotation, fan is directly driven by motor stator
Turn is dynamic, so that electric machine structure is simple, reduces the volume of motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of motor of the invention；
Fig. 2 is rotor and the structural schematic diagram with motor stator portion corresponding to rotor；
Fig. 3 is fan propeller and the structural schematic diagram with motor stator portion corresponding to fan propeller.
Specific embodiment
Present invention will be explained in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the present invention has the motor of radiator, and the motor includes a shell 1, setting in shell 1
There are a motor shaft 2, a motor stator 3 and a rotor 4, motor stator 3 includes stator winding, and the fixation of rotor 4 is nested with
On motor shaft 2, in this way, rotating synchronously rotor 4 and motor shaft 2, rotor 4 is located among motor stator 3.
The motor further includes one for carrying out cooling fan 5 to rotor 4, and fan 5 passes through 505 sets of a bearing
It sets on motor shaft 2, in this way, fan 5 be freely rotated can on motor shaft 2.
When motor works, stator winding electrifying, driving motor rotor 4 and fan 5 are rotated, so that rotor 4 and fan 5
Opposite direction rotation.
The fan 5 includes a fan propeller 501 and several fan blade 503 being arranged on fan propeller 501, if
Dry-air blast fan leaf 503 is circumferential to be uniformly arranged on an end face of fan propeller 501, is had on the circumferential surface of fan propeller 501 several
The number of poles of permanent magnet 504, rotor 4 and fan propeller 501 is different, and number of poles refers to that pole number, the stator winding are
Double Layer Winding, stator winding can produce the rotating excitation field of a pair of of opposite direction, in this way, this can respectively drive electricity to rotating excitation field
Machine rotor 4 and fan propeller 501 rotate, and rotor 4 and 501 opposite direction of fan propeller are rotated.
In order to achieve the above objectives, in the present embodiment, the number of poles of rotor 4 is 14 poles, and the number of poles of fan propeller 501 is 10
Pole, and stator winding include with first part corresponding to rotor 4 and with second corresponding to fan propeller 501
Point, first part and second part phase sequence are on the contrary, in this way, stator corresponding to first part and second part incudes magnetomotive force side
To on the contrary, in this way, making magnetic force direction suffered by rotor 4 and fan propeller 501 on the contrary, so that fan 5 and motor turn
Sub 4 opposite directions rotation.
As shown in Figure 2, X1 is that stator corresponding to first part incudes magnetomotive force direction, and Y1 is the rotation of rotor 4
Direction.
As shown in Figure 3, X2 is that stator corresponding to second part incudes magnetomotive force direction, and Y2 is turning for fan propeller 501
Dynamic direction.
Several first through hole 401 for axially penetrating through rotor 4, fan propeller are provided on the rotor 4
Several the second through-holes 502 for axially penetrating through fan propeller 501 are provided on 501, in this way, generating when fan 5 rotates axial
Air-flow, axial flow flow between motor stator 3 and rotor 4, while axial flow flows successively through 502 He of the second through-hole
First through hole 401, axial air flowing can take away the heat generated in motor stator 3 and rotor 4, simultaneously as should
There are relative motions for fan and 4 sons of motor turn, so generated air-flow is with rotor 4, there are radial motions, so as to electricity
The core interior of machine rotor 4 and the heat dissipation effect of rotor magnetic sheet greatly reinforce, simultaneously as 5 rotation direction of fan and motor
For rotor 4 on the contrary, its relative rotation speed is positively correlated with motor speed, which especially strengthens the rotor magnetic under running at high speed
The heat dissipation effect of piece substantially increases the high speed performance of motor, solves permanent magnet synchronous motor in the lower magnetic sheet temperature that runs at high speed
Excessively high problem.
The foregoing is only a description of the preferred application of the present invention, but is not to be construed as the limit to claim
System, structure of the invention can have other variations, be not limited to above structure.In short, all in independent claims of the invention
Protection scope in made various change be within the scope of the invention.
Claims (2)
1. a kind of motor with radiator, the motor includes a shell (1), is provided with a motor shaft in shell (1)
(2), a motor stator (3) and a rotor (4), motor stator (3) include stator winding, and rotor (4) fixation is nested with
On motor shaft (2), it is characterised in that: the motor further includes one for carrying out cooling fan to rotor (4)
(5), fan (5) is rotatably nested on motor shaft (2), when motor works, rotor (4) and fan (5) opposite direction
Rotation；
The fan (5) includes a fan propeller (501) and several fan blade being arranged on fan propeller (501)
(503), there are several permanent magnets (504) on the circumferential surface of fan propeller (501), the pole of rotor (4) and fan propeller (501)
Number is different, and the stator winding is that can produce the rotating excitation field of a pair of of opposite direction with driving motor rotor (4) and fan turn
The Double Layer Winding of sub (501) opposite direction rotation.
2. the motor according to claim 1 with radiator, it is characterised in that: set on the rotor (4)
Several first through hole (401) for axially penetrating through rotor (4) are equipped with, fan propeller is provided with several axial directions on (501)
Through the second through-hole (502) of fan propeller (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127416.3A CN107046347B (en) | 2017-03-06 | 2017-03-06 | Motor with radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127416.3A CN107046347B (en) | 2017-03-06 | 2017-03-06 | Motor with radiator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107046347A CN107046347A (en) | 2017-08-15 |
| CN107046347B true CN107046347B (en) | 2019-04-19 |
Family
ID=59544086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710127416.3A Active CN107046347B (en) | 2017-03-06 | 2017-03-06 | Motor with radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107046347B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594805B (en) * | 2019-08-09 | 2021-04-16 | 宁波方太厨具有限公司 | Side-draft range hood |
| CN215419958U (en) * | 2021-07-29 | 2022-01-04 | 扬州仁智信息科技有限公司 | Constant-rotating-speed heat dissipation motor for electric tool |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003311655A (en) * | 2002-04-25 | 2003-11-05 | Makita Corp | Power tool |
| FI119458B (en) * | 2006-09-07 | 2008-11-14 | Abb Oy | Arrangements for cooling an electric machine |
| US8558421B2 (en) * | 2011-07-27 | 2013-10-15 | General Electric Compant | Shaft mounted geared fan for operating motors and method of assembling such motors |
| CN205847035U (en) * | 2016-07-05 | 2016-12-28 | 衢州市迈德电子有限公司 | A kind of iron core brush motor |
-
2017
- 2017-03-06 CN CN201710127416.3A patent/CN107046347B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107046347A (en) | 2017-08-15 |
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