CN104124815B - The cooling structure of permanent magnet motor - Google Patents
The cooling structure of permanent magnet motor Download PDFInfo
- Publication number
- CN104124815B CN104124815B CN201310147802.0A CN201310147802A CN104124815B CN 104124815 B CN104124815 B CN 104124815B CN 201310147802 A CN201310147802 A CN 201310147802A CN 104124815 B CN104124815 B CN 104124815B
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- China
- Prior art keywords
- motor shell
- air
- motor
- blocks
- entrance guiding
- Prior art date
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- 238000001816 cooling Methods 0.000 title claims abstract description 14
- 239000003570 air Substances 0.000 claims abstract description 29
- 239000012080 ambient air Substances 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 239000010425 asbestos Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to the cooling structure of a kind of permanent magnet motor, comprising: motor shell; Comprising in motor shell: protection air draught plate is positioned at the rearward end of motor shell, foreign matter from entering motor shell inside with preventing to play absorption ambient air; Two blocks of entrance guiding plates lay respectively at the forward and backward end of motor shell, and wherein one piece is positioned at the inner side of protection air draught plate, and two blocks of entrance guiding plates are for drawing motor ambient air; Side air-out mouth is positioned at the side of motor shell, is discharged at this side air-out mouth by enclosure interior heat for motor shell runner is produced blast; Air draft mouth is positioned at the bottom of motor shell, utilizes blast effect that motor shell intimate heat is expelled to ambient air; Annular retaining ring is positioned at motor shell mid-way, for the gas mixed flow isolated between the forward and backward end of motor shell, prevents from producing blast, reduces air flow losses; Two pieces of transfer part cover plates, between two blocks of entrance guiding plates, are integral structure with fan blade, for being fixed on rotor.
Description
Technical field
The present invention relates to a kind of permanent magnet motor, particularly relate to the cooling structure of this permanent magnet motor.
Background technology
Permanent magnet motor is used for determining load, and electric energy is converted into mechanical energy, adopts high-performance permanent magnet excitation, have that rotating speed height, speed adjustable range are wide, power factor height, efficiency height, efficient region width, underloading time still keep the advantages such as high-level efficiency, it is achieved efficient energy-saving.
In prior art, the cooling structure mode of permanent magnet motor adopts external blower fan to force cooling. Main drawback is: 1, motor shell surface temperature height, and the heat that rotor and stator produce can not obtain good transmission, reduces the insulation level of motor, shortens the work-ing life of motor, for B, F, H level insulate, and temperature often rises 10,12,14 DEG C, the life-span of motor will reduce by half.
Insulation level illustrates:
B: insulating material: asbestos, mica, glass fibre, does tackiness agent or dipping by organic gel, allows top temperature 130 DEG C.
F: insulating material: asbestos, mica, glass fibre, does tackiness agent or dipping with synthetical glue, allows top temperature 155 DEG C.
H: insulating material: asbestos, mica, glass fibre, does tackiness agent or dipping, silicon organic gel with silicone, allows top temperature 180 DEG C.
2, motor cooling performance difference also directly has influence on the winding of stator, reduces rate of utilization, even can produce to burn.
Summary of the invention
The technical issues that need to address of the present invention there is provided the cooling structure of a kind of permanent magnet motor, it is intended to solves the above problems.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention comprises: motor shell; In described motor shell: protection air draught plate, two blocks of entrance guiding plates, side air-out mouth, air draft mouth, annular retaining ring and two pieces of transfer part cover plates; Described protection air draught plate is positioned at the rearward end of motor shell, and foreign matter from entering motor shell inside with preventing to play absorption ambient air; Two blocks of described entrance guiding plates lay respectively at the forward and backward end of motor shell, and wherein one piece is positioned at the inner side of protection air draught plate, and two blocks of entrance guiding plates are for drawing motor ambient air; Described side air-out mouth is positioned at the side of motor shell, is discharged at this side air-out mouth by enclosure interior heat for motor shell runner is produced blast; Described air draft mouth is positioned at the bottom of motor shell, utilizes blast effect that motor shell intimate heat is expelled to ambient air; Described annular retaining ring is positioned at motor shell mid-way, for the gas mixed flow isolated between the forward and backward end of motor shell, prevents from producing blast, reduces air flow losses; Two pieces of described transfer part cover plates, between two blocks of entrance guiding plates, are integral structure with fan blade, for being fixed on rotor.
Compared with prior art, the invention has the beneficial effects as follows: can make motor long term operation in rational working temperature, it is ensured that rotor magnet magnetic permanent, rational working temperature, reduces the thermal losses of motor, it provides motor operations efficiency.
Accompanying drawing explanation
Fig. 1 is the three-dimensional cross section view of the present invention.
Fig. 2 is the plan cross-sectional view of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
From Fig. 1, Fig. 2: the present invention comprises: motor shell 5; In described motor shell 5: protection air draught plate 1, two blocks of entrance guiding plates 2, side air-out mouth 6, air draft mouth 7, annular retaining ring 4 and two pieces of transfer part cover plates 3; Described protection air draught plate 1 is positioned at the rearward end of motor shell 5, and foreign matter from entering motor shell inside with preventing to play absorption ambient air; Two blocks of described entrance guiding plates 2 lay respectively at the forward and backward end of motor shell 5, and wherein one piece is positioned at the inner side of protection air draught plate 1, and two blocks of entrance guiding plates 2 are for drawing motor ambient air; Described side air-out mouth 6 is positioned at the side of motor shell 5, is discharged at this side air-out mouth by enclosure interior heat for motor shell runner is produced blast; Described air draft mouth 7 is positioned at the bottom of motor shell 5, utilizes blast effect that motor shell intimate heat is expelled to ambient air; Described annular retaining ring 4 is positioned at motor shell mid-way, for the gas mixed flow isolated between the forward and backward end of motor shell 5, prevents from producing blast, reduces air flow losses; Two pieces of described transfer part cover plates 3, between two blocks of entrance guiding plates 2, are integral structure with fan blade 8, for being fixed on rotor.
Clearance control between described entrance guiding plate 2 and fan blade is between 1.0��3.5mm.
Described transfer part cover plate 3 adopts via design, and the heat conduction produced by rotor internal circular surfaces is in air.
The principle of work of the present invention:
Rotated by fan blade 8 and produce air pressure, cooling air is flowed in motor shell 5 through flow deflector 2 by protection air draught plate 1 again, utilizes the effect of annular retaining ring 4 to be separated by two road cooling airs, reduce motor shell 5 inside because of flow resistance and windage, shorten pipeline, reduce the windage of tube wall. Going out air port in the side of motor shell 5 and envisaged underneath, object, in order to reduce turning windage, increases heat radiation area.
Transhipment department cover plate 3 of the present invention increases via design, and main purpose is to take out of in cooling air by rotor internal cavity heat, reduces internal rotor temperature, it is ensured that magnet can not demagnetize because of high temperature.
Claims (3)
1. a cooling structure for permanent magnet motor, comprising: motor shell; It is characterized in that: comprise in described motor shell: protection air draught plate, two blocks of entrance guiding plates, side air-out mouth, air draft mouth, annular retaining ring and two pieces of transfer part cover plates; Described protection air draught plate is positioned at the rearward end of motor shell, and foreign matter from entering motor shell inside with preventing to play absorption ambient air; Two blocks of described entrance guiding plates lay respectively at the forward and backward end of motor shell, and wherein one piece is positioned at the inner side of protection air draught plate, and two blocks of entrance guiding plates are for drawing motor ambient air; Described side air-out mouth is positioned at the side of motor shell, is discharged at this side air-out mouth by enclosure interior heat for motor shell runner is produced blast; Described air draft mouth is positioned at the bottom of motor shell, utilizes blast effect that motor shell intimate heat is expelled to ambient air; Described annular retaining ring is positioned at motor shell mid-way, for the gas mixed flow isolated between the forward and backward end of motor shell, prevents from producing blast, reduces air flow losses; Two pieces of described transfer part cover plates, between two blocks of entrance guiding plates, are integral structure with fan blade, for being fixed on rotor.
2. the cooling structure of a kind of permanent magnet motor according to claim 1, it is characterised in that: the clearance control between described entrance guiding plate and fan blade is between 1.0��3.5mm.
3. the cooling structure of a kind of permanent magnet motor according to claim 1, it is characterised in that: described transfer part cover plate adopts via design, and the heat conduction produced by rotor internal circular surfaces is in air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147802.0A CN104124815B (en) | 2013-04-25 | 2013-04-25 | The cooling structure of permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147802.0A CN104124815B (en) | 2013-04-25 | 2013-04-25 | The cooling structure of permanent magnet motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104124815A CN104124815A (en) | 2014-10-29 |
| CN104124815B true CN104124815B (en) | 2016-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310147802.0A Active CN104124815B (en) | 2013-04-25 | 2013-04-25 | The cooling structure of permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104124815B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06339250A (en) * | 1993-05-28 | 1994-12-06 | Fuji Electric Co Ltd | Cooling equipment for open type electric rotating machine |
| JP2005006422A (en) * | 2003-06-12 | 2005-01-06 | Toyo Electric Mfg Co Ltd | Main motor for vehicle |
| CN101476505A (en) * | 2009-01-23 | 2009-07-08 | 上海扬科发动机进出口有限公司 | Generating set |
| CN102290922A (en) * | 2011-09-06 | 2011-12-21 | 永济新时速电机电器有限责任公司 | Double-fed wind generator |
| CN102664507A (en) * | 2012-04-10 | 2012-09-12 | 周拥军 | Inner rotor motor |
| CN102983680A (en) * | 2012-11-28 | 2013-03-20 | 沈阳工业大学 | Air and water hybrid cooling high-speed permanent-magnet motor |
| CN203243166U (en) * | 2013-04-25 | 2013-10-16 | 上海汉钟精机股份有限公司 | Cooling structure of permanent magnet motor |
-
2013
- 2013-04-25 CN CN201310147802.0A patent/CN104124815B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06339250A (en) * | 1993-05-28 | 1994-12-06 | Fuji Electric Co Ltd | Cooling equipment for open type electric rotating machine |
| JP2005006422A (en) * | 2003-06-12 | 2005-01-06 | Toyo Electric Mfg Co Ltd | Main motor for vehicle |
| CN101476505A (en) * | 2009-01-23 | 2009-07-08 | 上海扬科发动机进出口有限公司 | Generating set |
| CN102290922A (en) * | 2011-09-06 | 2011-12-21 | 永济新时速电机电器有限责任公司 | Double-fed wind generator |
| CN102664507A (en) * | 2012-04-10 | 2012-09-12 | 周拥军 | Inner rotor motor |
| CN102983680A (en) * | 2012-11-28 | 2013-03-20 | 沈阳工业大学 | Air and water hybrid cooling high-speed permanent-magnet motor |
| CN203243166U (en) * | 2013-04-25 | 2013-10-16 | 上海汉钟精机股份有限公司 | Cooling structure of permanent magnet motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104124815A (en) | 2014-10-29 |
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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 | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Cooling structure of permanent magnet motor Effective date of registration: 20221013 Granted publication date: 20160601 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI HANBELL PRECISE MACHINERY Co.,Ltd. Registration number: Y2022310000283 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231024 Granted publication date: 20160601 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI HANBELL PRECISE MACHINERY Co.,Ltd. Registration number: Y2022310000283 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Cooling structure of permanent magnet motors Effective date of registration: 20231214 Granted publication date: 20160601 Pledgee: Shanghai Rural Commercial Bank Co.,Ltd. Jinshan sub branch Pledgor: SHANGHAI HANBELL PRECISE MACHINERY Co.,Ltd. Registration number: Y2023310000856 |