CN107482866A - The double water flow passage cooling high power density permagnetic synchronous motors of spiral - Google Patents
The double water flow passage cooling high power density permagnetic synchronous motors of spiral Download PDFInfo
- Publication number
- CN107482866A CN107482866A CN201710723272.8A CN201710723272A CN107482866A CN 107482866 A CN107482866 A CN 107482866A CN 201710723272 A CN201710723272 A CN 201710723272A CN 107482866 A CN107482866 A CN 107482866A
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- Prior art keywords
- water
- spiral
- motor
- runner
- water runner
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/02—Details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses the double water flow passage cooling high power density permagnetic synchronous motors of spiral, including stator, rotor and cooling system, the cooling system is by temperature sensor（14）, DSP control chips, the first spiral water runner（12）, the second spiral water runner（13）Formed with water pump, casing（15）Inside it is laid with the first spiral water runner（13）With the second spiral water runner reverse with the first spiral water runner current（12）.It is an advantage of the invention that：Improve the heat dispersion of motor, efficiently solve heavy-duty motor exothermic temperature, avoid permagnetic synchronous motor be chronically under high temperature operation cause permanent magnet irreversibility demagnetize and caused by potential safety hazard and loss.It is widely used in high power permanent magnet synchronous motor application occasion.
Description
Technical field
The invention belongs to permanent magnet synchronous motor with high-power density technical field of heat dissipation.
Background technology
Due to the power density requirements more and more higher of driving motor for electric automobile, permanent-magnetic synchronous motor rotor is carried by permanent magnet
For magnetic field, without Exciting Windings for Transverse Differential Protection excitation, thus its is simple in construction, and corresponding assembling is low with processing charges, is easy to repair.Permanent magnetism is same
Motor is walked without field power supply, therefore it is more saved, because permagnetic synchronous motor does not have brush and collecting ring, thus motor
There is no the friction of corresponding component during high-speed cruising, motor operation is more reliable and secure, and service life is longer.Permagnetic synchronous motor is forever
Magnet can provide stronger magnetic field, therefore its power density is high, and under equal-wattage grade, permagnetic synchronous motor volume is smaller, matter
Amount is lighter, more saves, and reliability is high, service life length, therefore it has wide practical use in electric automobile field.
Heating is serious when high power density motor is run, if heat can not disperse in time, motor internal temperature will be made fast
Speed increase.Being chronically under high temperature can make permanent magnet that irreversibility demagnetization occur, and substantially reduce the performance of permagnetic synchronous motor, together
When can also reduce the service life of motor, produce unforeseen potential safety hazard.Existing main point of permagnetic synchronous motor radiating
For air-cooled and two kinds of water cooling.Air-cooled radiator structure is to install radiator fan additional on motor, passes through flow perturbation caused by fan
Forced heat radiation is carried out to motor, but the air quantity for being actually reached due to air quantity caused by fan motor internal is smaller, and radiating is uneven,
Radiating effect is undesirable, applies in general to lower-powered motor.
Chinese patent literature CN105490458A disclosed a kind of motor radiating structure on April 13rd, 2016, and its is air-cooled
Formula radiator sets internal fan using cover internal, and auxiliary heat dissipation fan and wind scooper are set outside end cap, in wind scooper
It is upper that hook is set, ice bag is hung on hook, increases cooling effect.The patent can play certain radiating effect, hang up ice bag
Effect is more excellent afterwards, but because motor internal gap is small, it is actual smaller by the air quantity of motor internal, and the ice in ice bag is fast
Speed is melted, and can not be stopped changing ice bag during due to motor operation, thus the structure does not simply fail to cool, and can be heated on the contrary,
The extra hot burden of increase, influences the radiating of motor.
Water-cooling structure radiating effect will get well relative to air-cooled heat dissipation structure, and high power motor typically uses water-cooling structure.It is existing
It is by the way that casing is divided into casing inner wall and casing outer wall mostly to have Water Cooling Technology, and cavity is formed as current in inner and outer wall
Road, water inlet and delivery port be set in casing outer wall, patent document CN101577454A three-phase water-cooling permanent magnet synchronous motor, specially
Sharp document CN103401346A electric car water-cooling permanent magnet synchronous motor cooling water flow conduits structure etc. employs similar water cooling
Structure, the water flow passage of this structure are formed by outer casing inner wall and outer wall press fitting, and its shortcoming is：1st, it is preferably close to ensure
Effect is sealed, it is necessary to higher machining accuracy, high processing costs, and cannot ensure to be fully sealed, drainage can be caused；2nd, press
Filling hydraulic pressure that the water flow passage that forms is born can not be too high, and for the excessive water channel of corner, water, which flows through, out-of-date can produce larger rush
Power is hit, while causes hydraulic losses, influences radiating effect, therefore is not suitable for the very high motor of power requirement；3rd, due to this
Structure can cause water inlet temperature low, and outlet temperature is high so that motor radiating is uneven, and the motor each several part temperature difference is larger, holds
Easily cause motor damage.
The content of the invention
For the deficiency of existing permagnetic synchronous motor radiator structure, the technical problems to be solved by the invention are just to provide one
The double water flow passage cooling high power density permagnetic synchronous motors of kind spiral, it can improve the heat dispersion of motor, and it is uniform to radiate, and increases
Add the service life of permagnetic synchronous motor, reduce electrical fault.
The technical problems to be solved by the invention are realized by such technical scheme, it include stator, rotor and
Cooling system, the stator are mainly made up of stator core, stator winding, casing, drive end bearing bracket and rear end cap, and the rotor includes
Rotor core and rotating shaft, the cooling system is by temperature sensor, DSP control chips, the first spiral water runner, the second spiral water
Runner and water pump are formed, and the first spiral water runner and second spiral reverse with the first spiral water runner current are laid with casing
Water flow passage, drive end bearing bracket offer the water inlet of the first spiral water runner and the delivery port of the second spiral water runner, opened on rear end cap
If the delivery port of the water inlet of the second spiral water runner and the first spiral water runner, the middle part installation TEMP of stator core
Device, the temperature data of temperature sensor collection are transferred to DSP control chips, and DSP control chips control according to real time temperature data
Water pump pressurizes, and changes cooling water water velocity.
The solution have the advantages that：
Due to helical flow of water road structure can increasing heat radiation area, take away more heats, reverse water opened up in motor case
Two helical flow of water roads of stream, the cooling water in the first helical flow of water road from motor front end while rear end is flowed to, and second
Cooling water in water flow passage is from the front end of the rear end flow direction motor of motor, and good heat dissipation effect, radiating is uniform, makes motor bulk temperature
Uniformly；
Whole helical flow of water road does not have the excessive bend of corner, and hydraulic losses are small, can pass through big hydraulic pressure current；
The temperature of motor is transferred to DSP control chips using temperature sensor, by DSP control chips according to motor real time temperature
Cooling water water velocity is controlled, when motor temperature is too high, the fast current of flow velocity take away rapidly amount of heat so that motor radiating
Efficiently, excellent temperature control effect can be obtained；
Whole helical flow of water road is formed by casting, and technique is simple, and manufacturing cost is low, can realize being fully sealed for water flow passage, Du
Coolant absolutely leaks the potential safety hazard brought.Cooling water enters before motor sets suitable initial temperature according to occasion, in electricity
Using the cold water intaking that an initial temperature is relatively low in the case of acc power is king-sized, make electric motor temperature reduction effect more notable.Cooling
Water uses through outside cooling Posterior circle, saving water resource；
So the present invention improves the heat dispersion of motor, heavy-duty motor exothermic temperature is efficiently solved, it is same to avoid permanent magnetism
Step motor be chronically under high temperature operation cause permanent magnet irreversibility demagnetize and caused by potential safety hazard and loss, add forever
The service life of magnetic-synchro motor.It is widely used in high power permanent magnet synchronous motor application occasion.
Brief description of the drawings
The brief description of the drawings of the present invention is as follows：
Fig. 1 is the structure sectional view of the present invention；
Fig. 2 is the system construction drawing of the present invention；
Fig. 3 is the structural representation of the double water flow passages of spiral of the present invention.
In figure, the 1, first helical flow of water road water inlet, 2, drive end bearing bracket, 4, rotating shaft, 5, stator winding, the 6, second spiral
Shape water flow passage delivery port, 7, stator core, the 8, first helical flow of water road delivery port, 9, rotor, 10, rear end cap, the 11, second spiral shell
Revolve shape water flow passage water inlet, the 12, second helical flow of water road, the 13, first helical flow of water road, 14, temperature sensor, 15, machine
Shell.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
As shown in Figure 1, Figure 2 and Figure 3, the present invention includes stator, rotor and cooling system, the stator mainly by stator core 7,
Stator winding 5, casing 15, drive end bearing bracket 2 and rear end cap 10 form, and the rotor includes rotor core 9 and rotating shaft 4, the radiating
System is made up of temperature sensor 14, DSP control chips, the first spiral water runner 12, the second spiral water runner 13 and water pump, machine
The first spiral water runner 13 and the second spiral water runner 12 reverse with the first spiral water runner current, front end are laid with shell 15
Lid 2 offers the delivery port 6 of the spiral water runner of water inlet 1 and second of the first spiral water runner, and second is opened up on rear end cap 10
The delivery port 8 of the spiral water runner of water inlet 11 and first of spiral water runner, the middle part mounting temperature sensor of stator core 7
14, the temperature data that temperature sensor 14 gathers is transferred to DSP control chips, and DSP control chips are according to real time temperature data control
Water pump pressurization processed, changes cooling water water velocity.
As shown in figure 1, temperature sensor 14 is placed in the middle part of stator core 7 and at air gap.Casing 15 is by aluminium alloy
Cast is formed, and the first spiral water runner 12 and the second spiral water runner 13 are cast in casing by core core, and product is solid
Mortar can be gone out with hot water after chemical conversion type, so as to reach demoulding purpose, form helical flow of water road.Using aluminium alloy as shell
Body material, aluminium alloy density low-intensity is big, is advantageous to mitigate motor weight, and aluminium alloy coefficient of heat transfer is big, is advantageous to heat
Shed in time.
As shown in figure 3, in the first spiral water runner 13, cooling water flows into from the first helical flow of water road water inlet 1, from
One helical flow of water road delivery port 8 flows out；In second spiral water runner 12, cooling water is from the second helical flow of water road water inlet 11
Flow into, flowed out from the second helical flow of water road delivery port 6, thus current direction is cooled down in two helical flow of water roads on the contrary, can keep away
Exempt from the uneven phenomenon that radiates.
As shown in Fig. 2 the temperature real time data that the temperature sensor at the middle part of stator core 7 obtains is transmitted directly to DSP controls
Coremaking piece, DSP control chips determine cooling water water velocity, when temperature is too high, DSP according to the real time temperature data received
Control chip controls water pump to be pressurizeed to cooling water, improves cooling water flow velocity, accelerates radiating rate.In view of motor operating state changes
When motor internal temperature change can postpone to change, thus DSP control chips simultaneously can according to other specification during motor operation come
The temperature change of motor internal is prejudged, water velocity control command is made in advance, makes motor temperature control time shorter.
According to the use occasion of high power permanent magnet synchronous motor, controlled motor cooling water enters the temperature in helical flow of water road
Degree, it is especially big in power, in the case of the motor feels hot especially severe, using the relatively low cooling water of an initial temperature, enhancing drop
Temp effect.Cooling water is used after delivery port outflow by outside cooling Posterior circle, saving water resource.
Claims (1)
1. the double water flow passage cooling high power density permagnetic synchronous motors of spiral, including stator, rotor and cooling system, the stator
Mainly by stator core（7）, stator winding（5）, casing（15）, drive end bearing bracket（2）And rear end cap（10）Composition, the rotor include
Rotor core（9）And rotating shaft（4）, it is characterized in that：The cooling system is by temperature sensor（14）, DSP control chips, the first spiral shell
Revolve water flow passage（12）, the second spiral water runner（13）Formed with water pump, casing（15）Inside it is laid with the first spiral water runner（13）
With the second spiral water runner reverse with the first spiral water runner current（12）, drive end bearing bracket（2）Offer the first spiral water runner
Water inlet（1）With the delivery port of the second spiral water runner（6）, rear end cap（10）On open up the water inlet of the second spiral water runner
（11）With the delivery port of the first spiral water runner（8）, stator core（7）Middle part mounting temperature sensor（14）, TEMP
Device（14）The temperature data of collection is transferred to DSP control chips, and DSP control chips control water pump to add according to real time temperature data
Pressure, change cooling water water velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710723272.8A CN107482866A (en) | 2017-08-22 | 2017-08-22 | The double water flow passage cooling high power density permagnetic synchronous motors of spiral |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710723272.8A CN107482866A (en) | 2017-08-22 | 2017-08-22 | The double water flow passage cooling high power density permagnetic synchronous motors of spiral |
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| Publication Number | Publication Date |
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| CN107482866A true CN107482866A (en) | 2017-12-15 |
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| CN201710723272.8A Pending CN107482866A (en) | 2017-08-22 | 2017-08-22 | The double water flow passage cooling high power density permagnetic synchronous motors of spiral |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336857A (en) * | 2018-04-28 | 2018-07-27 | 河北工业大学 | A kind of three screw type magneto cooling water channel structures |
| CN108736658A (en) * | 2017-04-21 | 2018-11-02 | 三菱电机株式会社 | Electric rotating machine |
| CN108736653A (en) * | 2018-07-06 | 2018-11-02 | 金龙联合汽车工业（苏州）有限公司 | A kind of motor circumferential direction double-helix cooling water channel structure |
| CN109831071A (en) * | 2018-12-29 | 2019-05-31 | 太仓富华特种电机有限公司 | A kind of motor for refrigeration compressor with proof and electric leakage-proof safety structure |
| CN110212699A (en) * | 2019-06-06 | 2019-09-06 | 温州大学 | A kind of alternator for vehicle combined cooling structure |
| CN111431349A (en) * | 2020-05-28 | 2020-07-17 | 黑龙江工程学院 | Pumped storage generator with double water-cooling cross type cooling equipment |
| CN112821644A (en) * | 2021-01-29 | 2021-05-18 | 上海电机学院 | Water cooling system of disc type coreless permanent magnet motor |
| TWI748509B (en) * | 2020-06-10 | 2021-12-01 | 威剛科技股份有限公司 | Motor and motor housing assembly |
| CN113890251A (en) * | 2021-11-25 | 2022-01-04 | 博远机电(南通)有限公司 | High-power variable speed motor for vertical mill |
| CN114696557A (en) * | 2022-03-07 | 2022-07-01 | 北京交通大学 | Water-cooled casing of axial flux permanent magnet motor and intelligent cooling control method |
| CN115310226A (en) * | 2022-08-08 | 2022-11-08 | 重庆大学 | Motor shell lightweight and cooling channel layout coupling design method based on topology optimization |
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| CN203526564U (en) * | 2013-08-07 | 2014-04-09 | 安阳工学院 | Spiral dual-cooling-channel high speed motorized spindle |
| CN104009587A (en) * | 2014-06-13 | 2014-08-27 | 北京石油化工学院 | Magnetic levitation high-energy-density motor |
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| CN205846986U (en) * | 2016-07-30 | 2016-12-28 | 开县正品诚赢科技发展有限责任公司 | Water cooled heat radiating motor |
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Patent Citations (4)
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| CN203526564U (en) * | 2013-08-07 | 2014-04-09 | 安阳工学院 | Spiral dual-cooling-channel high speed motorized spindle |
| CN104009587A (en) * | 2014-06-13 | 2014-08-27 | 北京石油化工学院 | Magnetic levitation high-energy-density motor |
| CN204068573U (en) * | 2014-09-05 | 2014-12-31 | 中州华起电机有限公司 | A kind of fire-proof motor radiator structure |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736658A (en) * | 2017-04-21 | 2018-11-02 | 三菱电机株式会社 | Electric rotating machine |
| CN108736658B (en) * | 2017-04-21 | 2020-05-12 | 三菱电机株式会社 | Rotating electrical machine |
| CN108336857A (en) * | 2018-04-28 | 2018-07-27 | 河北工业大学 | A kind of three screw type magneto cooling water channel structures |
| CN108736653B (en) * | 2018-07-06 | 2024-03-15 | 金龙联合汽车工业（苏州）有限公司 | Motor circumference double helix cooling water route structure |
| CN108736653A (en) * | 2018-07-06 | 2018-11-02 | 金龙联合汽车工业（苏州）有限公司 | A kind of motor circumferential direction double-helix cooling water channel structure |
| CN109831071A (en) * | 2018-12-29 | 2019-05-31 | 太仓富华特种电机有限公司 | A kind of motor for refrigeration compressor with proof and electric leakage-proof safety structure |
| CN110212699A (en) * | 2019-06-06 | 2019-09-06 | 温州大学 | A kind of alternator for vehicle combined cooling structure |
| CN111431349A (en) * | 2020-05-28 | 2020-07-17 | 黑龙江工程学院 | Pumped storage generator with double water-cooling cross type cooling equipment |
| TWI748509B (en) * | 2020-06-10 | 2021-12-01 | 威剛科技股份有限公司 | Motor and motor housing assembly |
| CN112821644A (en) * | 2021-01-29 | 2021-05-18 | 上海电机学院 | Water cooling system of disc type coreless permanent magnet motor |
| CN113890251A (en) * | 2021-11-25 | 2022-01-04 | 博远机电(南通)有限公司 | High-power variable speed motor for vertical mill |
| CN114696557A (en) * | 2022-03-07 | 2022-07-01 | 北京交通大学 | Water-cooled casing of axial flux permanent magnet motor and intelligent cooling control method |
| CN115310226A (en) * | 2022-08-08 | 2022-11-08 | 重庆大学 | Motor shell lightweight and cooling channel layout coupling design method based on topology optimization |
| CN115310226B (en) * | 2022-08-08 | 2023-05-30 | 重庆大学 | Motor shell lightweight and cooling channel layout coupling design method based on topology optimization |
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Application publication date: 20171215 |
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