CN109756055A - Full-enclosed permanent-magnet motor ventilation cooling structure - Google Patents
Full-enclosed permanent-magnet motor ventilation cooling structure Download PDFInfo
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- CN109756055A CN109756055A CN201711058678.5A CN201711058678A CN109756055A CN 109756055 A CN109756055 A CN 109756055A CN 201711058678 A CN201711058678 A CN 201711058678A CN 109756055 A CN109756055 A CN 109756055A
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Abstract
The present invention proposes that a kind of full-enclosed permanent-magnet motor ventilation cooling structure, including shell, drive end bearing bracket, rear end cap, stator structure and rotor structure, the rotor structure include shaft and rotor core, and the rotor core fixing assembling is in the middle part of the lateral surface of the shaft；The stator structure includes stator core and stator winding, and the stator winding is wound on the stator core；Multiple radiation fin structures are evenly arranged on the stator core outer peripheral surface, the stator structure further includes multiple pulling plates corresponding with the fin structure, the shell is the arcuate structure of multiple segmentations, and the pulling plate, the fin structure and the shell three seal the axial ventilation road to be formed and penetrate through the shell both ends.By the way that radiation fin structure is arranged in cooling ventilation duct, outside air enters in the cooling ventilation duct of motor through radial air inlet, generates bigger, more obvious turbulent flow by fin agitation, takes away more heats.
Description
Technical field
The present invention relates to technical field of motors, especially a kind of totally-enclosed ventilation cooling structure of magneto.
Background technique
Magneto is the dc motor that magnetic field is established by one or more permanent magnet, is encouraged without rotor field electricity
Magnetic.Since permanent magnet has the characteristic of magnetic easy adsorbing contaminant, motor need to prevent the foreign matters such as dust, moisture, soda acid from entering electricity
To destroy permanent magnet inside machine.Especially rail traffic magneto, when rail locomotive vehicle is run in order to prevent, wheel
The metal powder generated with rail friction enters inside motor the rotor surface for being adsorbed on magneto, leads to motor stator and rotor
Air gap becomes smaller or even electric machine chamber-sweeping, so, magneto generallys use full-enclosed structure.
When full-enclosed permanent-magnet motor uses open-type ventilation and heat structure, cooling wind is in outer fan or the work of included fan
Under, the heat of motor is taken away by the outer circulation ventilating duct of motor.There are turbulent flows in ventilating duct for this ventilation cooling structure not
Obvious problem, the thermal Finite that cooling wind is taken away cause motor temperature rise higher, and heat-sinking capability is limited.Simultaneously as rotor is forever
The characterization of adsorption of magnet, iron powder and iron filings in cooling wind etc. are readily adsorbed in rotor surface, easily cause air gap blocking, rotor
The failures such as thorax are swept, rotor structure is damaged, influence p-m rotor operational reliability.
To improve above-mentioned technical problem, a kind of full-enclosed permanent-magnet motor ventilation cooling structure is provided, motor can be effectively reduced
Temperature rise, improve the reliability of motor operation.
Summary of the invention
In view of this, the present invention is directed to propose a kind of full-enclosed permanent-magnet motor ventilation cooling structure, by ventilating duct
Once fin radiating structure is set, it is bigger, more obviously turbulent to generate in ventilation to cooling medium generation fin agitation, it takes away
More heats, and avoid rotor is exposed from adsorbing iron filings in air duct, hidden danger is brought to motor operation.
A kind of full-enclosed permanent-magnet motor ventilation cooling structure provided by the invention, including it is shell, drive end bearing bracket, rear end cap, fixed
Minor structure and rotor structure, the rotor structure include shaft and rotor core, and the rotor core fixing assembling is in described turn
In the middle part of the lateral surface of axis；The stator structure includes stator core and stator winding, and the stator winding is wound on the stator
Iron core；Be evenly arranged with multiple radiation fin structures on the stator core outer peripheral surface, the stator structure further include it is multiple with
The corresponding pulling plate of the fin structure, the shell includes multiple segmentation arcuate structures, the pulling plate, the fin structure and institute
It states shell and seals the axial ventilation road to be formed and penetrate through the shell both ends.
Further, the fin structure is from the concave surface that is formed to the stator core inner recess, and by described recessed
Face limits the spaced formation in the convex surface to be formed.
Further, the cross sectional shape on the concave surface and the convex surface can be triangle, trapezoidal or arc-shaped.
Further, the stator core periphery between adjacent two fin structure is arranged in the bottom surface of the pulling plate
On face, the top surface outwardly convex of the pulling plate forms an abutting part, adjacent two shell be connected to the abutting part with it is described
Pulling plate sealing is fixed.
Further, the section of the pulling plate is in " convex " shape structure.
Further, the axial ventilation road is along the circumferentially equidistant arrangement of the stator core.
Further, the forward end seal of the drive end bearing bracket and the shell is fixed, and the drive end bearing bracket is equipped with axial outlet air
Mouthful, the rear end face of the rear end cap and the shell, which seals, to be fixed, and the rear end cap is equipped with a radial air inlet, the radial direction
Air inlet, the axial ventilation road and the axial air outlet connection, collectively form cooling air duct structure.
Full-enclosed permanent-magnet motor ventilation cooling structure provided by the invention, by the way that radiating fin is arranged in cooling ventilation duct
Structure, outside air enter in the cooling ventilation duct of motor through radial air inlet, generate by fin agitation bigger, more obvious
Turbulent flow takes away more heats, obviously reinforces motor stator core and stator winding heat dissipation, while being enclosed by pulling plate and thin outer crust
At ventilating duct periphery, it can effectively mitigate pedestal weight, be conducive to the light-weight design of motor.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of full-enclosed permanent-magnet motor ventilation cooling structure of the present invention.
Fig. 2 is the structural schematic diagram of radiation fin structure in the present invention.
Specific embodiment
Further to illustrate that the present invention is to reach technical means and efficacy used by predetermined goal of the invention, below in conjunction with
Attached drawing and preferred embodiment, to a specific embodiment of the invention, structure, feature and its effect, detailed description is as follows.
Fig. 1 is the structural schematic diagram of full-enclosed permanent-magnet motor ventilation cooling structure of the present invention.As shown in Figure 1, a kind of full envelope
Close magneto ventilation cooling structure 100, including shell 10, drive end bearing bracket 11, rear end cap 12, stator structure 13, rotor structure 14
And pulling plate 20.
Wherein, rotor structure 14 includes shaft 15 and rotor core 16, and 16 fixing assembling of rotor core is in the outer of shaft 15
In the middle part of side, rotor core 16 is the interior tubular laminated core for being equipped with magnetic material.Stator structure 13 include stator core 18 with
Stator winding 17, stator winding 17 are wound on stator core 18, and stator core 18 is tubular laminated iron core.As shown in Fig. 2, fixed
Multiple radiation fin structures 19 are evenly arranged on the outer peripheral surface of sub- iron core 18, fin structure 19 is corresponding with pulling plate 20.Shell
10 be the arcuate structure of multiple segmentations, the periphery for the close encirclement stator core 18 that cooperates with pulling plate 20.Specifically, pulling plate
20, fin structure 19 and 10 three of shell seal the axial ventilation road 21 to form perforation 10 both ends of shell.In the present embodiment, wing
The quantity of chip architecture 19 is 10, week of the axial ventilation road 21 formed with pulling plate 20, the sealing of shell 10 along stator core 18
To equidistant arrangement.
Specifically, fin structure 19 is to the center of circle direction of stator core 18 from being recessed the concave surface 192 formed, and by adjacent
Two concave surfaces 192 limit the spaced formation in convex surface 194 formed.Wherein, the cross sectional shape on concave surface 192 and convex surface 194 can be three
It is angular, trapezoidal or arc-shaped.The periphery of the stator core 13 between adjacent two fin structure 19 is arranged in the bottom surface 202 of pulling plate 20
On face, the top surface outwardly convex of pulling plate 20 forms an abutting part 204, and adjacent two shell 10 is connected on abutting part 204 and pulling plate
20 sealings are fixed.Optionally, the section of pulling plate 20 is in " convex " shape structure.It should be noted that turbulent flow is strong between each fluid micellar
It mixes and adulterates strongly, not only have movement along main flow direction, but also there are also the movements perpendicular to main flow direction.Fin structure
19 when cooling medium passes through, and cooling medium can be made to generate bigger, more obviously turbulent, facilitate cooling medium and take away more
Heat.
Drive end bearing bracket 11 and rear end cap 12 are irregular more muscle support constructions with circular shape, drive end bearing bracket 11 with
The forward end seal of shell 10 is fixed, and drive end bearing bracket 11 is equipped with axial air outlet 22.The rear end face of rear end cap 12 and shell 10 seals
Fixed, rear end cap 12 is equipped with a radial air inlet 23, and radial air inlet 23 is the vented cavity of tubular construction, radial air inlet
23, axial ventilation road 21 and axial air outlet 22 are interconnected, and collectively form the cooling air duct structure of motor.In the present embodiment,
Cooling wind is guided to axial ventilation road 21 after the entrance of radial air inlet 23, is then expelled in atmosphere from axial air outlet 22.
Since front and rear cover (11,12) is to the sealing function of rotor structure 14 and stator winding 17, make cooling air will not be with carrying magnetic
Rotor be in contact, that is to say, that even if from the external world suck impurity, dust motor magnet rotor will not be impacted.
Full-enclosed permanent-magnet motor ventilation cooling structure provided by the invention, by the way that radiating fin is arranged in cooling ventilation duct
Structure, outside air enter in the cooling ventilation duct of motor through radial air inlet, generate by fin agitation bigger, more obvious
Turbulent flow takes away more heats, obviously reinforces motor stator core and stator winding heat dissipation, while being enclosed by pulling plate and thin outer crust
At ventilating duct periphery, it can effectively mitigate pedestal weight, be conducive to the light-weight design of motor.
Specific case is applied herein to carry out full-enclosed permanent-magnet motor ventilation cooling structure of the invention and embodiment
It illustrates, the explanation of embodiment of above is merely used to help understand method and its core concept of the invention；Meanwhile for ability
The those skilled in the art in domain, according to the thought of the present invention, there will be changes on specific embodiment and its application range, comprehensive
On, the contents of this specification are not to be construed as limiting the invention, and protection scope of the present invention should be with the attached claims
It is quasi-.
Claims (7)
1. a kind of full-enclosed permanent-magnet motor ventilation cooling structure, including shell, drive end bearing bracket, rear end cap, stator structure and rotor knot
Structure, the rotor structure include shaft and rotor core, and the rotor core fixing assembling is in the middle part of the lateral surface of the shaft；
The stator structure includes stator core and stator winding, and the stator winding is wound on the stator core；It is characterized by:
Multiple radiation fin structures are evenly arranged on the stator core outer peripheral surface, the stator structure further includes multiple and institute
State the corresponding pulling plate of fin structure, the shell includes multiple segmentation arcuate structures, the pulling plate, the fin structure and described
Shell seals the axial ventilation road to be formed and penetrate through the shell both ends.
2. full-enclosed permanent-magnet motor ventilation cooling structure as described in claim 1, which is characterized in that the fin structure to
The concave surface that the stator core inner recess is formed, and the spaced formation in convex surface formed is limited by the concave surface.
3. full-enclosed permanent-magnet motor ventilation cooling structure as claimed in claim 2, which is characterized in that the concave surface with it is described convex
The cross sectional shape in face can be triangle, trapezoidal or arc-shaped.
4. full-enclosed permanent-magnet motor ventilation cooling structure as claimed in claim 2, which is characterized in that the bottom surface of the pulling plate is set
It sets on the stator core outer peripheral surface between adjacent two fin structure, the top surface outwardly convex of the pulling plate forms one
Abutting part, adjacent two shell is connected to the abutting part and pulling plate sealing is fixed.
5. full-enclosed permanent-magnet motor ventilation cooling structure as claimed in claim 4, which is characterized in that the section of the pulling plate is in
" convex " shape structure.
6. full-enclosed permanent-magnet motor ventilation cooling structure as described in claim 1, which is characterized in that axial ventilation road edge
The circumferentially equidistant arrangement of stator core.
7. full-enclosed permanent-magnet motor ventilation cooling structure as described in claim 1, which is characterized in that the drive end bearing bracket with it is described
The forward end seal of shell is fixed, and the drive end bearing bracket is equipped with axial air outlet, and the rear end face of the rear end cap and the shell is close
Sealing is fixed, and the rear end cap is equipped with a radial air inlet, the radial direction air inlet, the axial ventilation road and the Axial-running Out
Air port connection, collectively forms cooling air duct structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711058678.5A CN109756055A (en) | 2017-11-01 | 2017-11-01 | Full-enclosed permanent-magnet motor ventilation cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711058678.5A CN109756055A (en) | 2017-11-01 | 2017-11-01 | Full-enclosed permanent-magnet motor ventilation cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109756055A true CN109756055A (en) | 2019-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711058678.5A Pending CN109756055A (en) | 2017-11-01 | 2017-11-01 | Full-enclosed permanent-magnet motor ventilation cooling structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429760A (en) * | 2019-07-25 | 2019-11-08 | 中车永济电机有限公司 | A kind of full-enclosed permanent-magnet motor bearings cooling structure equipped with separate space |
| CN112134396A (en) * | 2020-09-30 | 2020-12-25 | 中车株洲电机有限公司 | Motor and shell thereof |
| CN113691053A (en) * | 2021-08-27 | 2021-11-23 | 东南大学盐城新能源汽车研究院 | Motor modular liquid cooling machine shell and manufacturing method thereof |
| CN115833478A (en) * | 2022-07-18 | 2023-03-21 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Motor casing for electric automobile motor with cooling module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487125A (en) * | 2016-11-25 | 2017-03-08 | 中车永济电机有限公司 | Locomotive direct-drive permanent-magnetism traction motor |
-
2017
- 2017-11-01 CN CN201711058678.5A patent/CN109756055A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487125A (en) * | 2016-11-25 | 2017-03-08 | 中车永济电机有限公司 | Locomotive direct-drive permanent-magnetism traction motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429760A (en) * | 2019-07-25 | 2019-11-08 | 中车永济电机有限公司 | A kind of full-enclosed permanent-magnet motor bearings cooling structure equipped with separate space |
| CN112134396A (en) * | 2020-09-30 | 2020-12-25 | 中车株洲电机有限公司 | Motor and shell thereof |
| WO2022068032A1 (en) * | 2020-09-30 | 2022-04-07 | 中车株洲电机有限公司 | Electric motor, and housing thereof |
| CN113691053A (en) * | 2021-08-27 | 2021-11-23 | 东南大学盐城新能源汽车研究院 | Motor modular liquid cooling machine shell and manufacturing method thereof |
| CN115833478A (en) * | 2022-07-18 | 2023-03-21 | 安徽理工大学环境友好材料与职业健康研究院(芜湖) | Motor casing for electric automobile motor with cooling module |
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Application publication date: 20190514 |