CN108336857A - A kind of three screw type magneto cooling water channel structures - Google Patents
A kind of three screw type magneto cooling water channel structures Download PDFInfo
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- CN108336857A CN108336857A CN201810398384.5A CN201810398384A CN108336857A CN 108336857 A CN108336857 A CN 108336857A CN 201810398384 A CN201810398384 A CN 201810398384A CN 108336857 A CN108336857 A CN 108336857A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to a kind of three screw type magneto cooling water channel structures, it is included in the cooling water channel of motor stator surface setting, the cooling water channel is made of three A water channels, B water channels, C water channels spiral channels, spiral is arranged side by side successively for A water channels, B water channels, C water channels, A water channels water inlet and the first B water channels water outlet, C water channel water outlets are located at the same side of motor stator, A water channels water outlet and the 2nd B water channels water outlet, C water channel water inlets are located at the other side of motor stator, and the screw pitch of three spiral channels is equal；There are one B water channel water inlets for setting on the B water channels in the middle part of motor stator.It is big that the present invention can solve both ends temperature gradient in high efficiency magneto screw type water channel, motor radiates uneven in an axial direction, the poor problem of heat dissipation performance at motor axial centre, and do not allow to be also easy to produce turbulent flow inside cooling water channel, the coefficient of heat transfer and heat exchange efficiency of motor are low, there are problems that local temperature crosses the failure risk of thermal initiation.
Description
Technical field：
The present invention relates to motor water cooling technical field, especially a kind of three screw type magneto cooling water channel structures.
Background technology：
For magneto due to high power high-energy density etc., the heat dissipation in motor operation is most important.Magneto
Stator mostly uses water-cooling pattern and is cooled down, and cooling duct is divided into axial Z-shaped and circumferential screw type two ways.Screw type
Water channel small flow resistance, contact area is big, and heat dissipation is preferable, but the cooling water channel of screw type can be made due to the one-way of flow
Motor both ends generate larger temperature gradient, if the Wen Sheng of certain point is more than the maximum temperature-rise of motor, motor goes out effect
Risk.Application No. is 201210109140.3 Chinese patents to disclose a kind of spiral axially circulating motor cooling water channel structure,
Cooling water flows to rear end from front end and flows to front end again, uniformly cools down stator core, reduces the temperature difference before and after motor, but water is continuous
In flow process, temperature gradually rises, smaller to the cooling help of motor stator integral heat sink, and does not allow in screw type water channel
It is also easy to produce turbulent flow, the heat transfer rate of motor can not be improved, so proposing a kind of better cooling water channel structure of heat dissipation effect to water cooling
There is realistic meaning for motor.
Invention content：
The purpose of the present invention is to provide a kind of three screw type magneto cooling water channel structures.The cooling water channel structure is
A kind of circumferential direction screw type water channel, can solve in high efficiency magneto screw type water channel that both ends temperature gradient is big, and motor is in an axial direction
It radiates uneven, does not allow to be also easy to produce turbulent flow inside the poor problem of the heat dissipation performance at motor axial centre and cooling water channel,
The coefficient of heat transfer and heat exchange efficiency of motor are low, there are problems that local temperature crosses the failure risk of thermal initiation.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of three screw type magneto cooling water channel structures, are included in the cooling water channel of motor stator surface setting,
It is characterized in that the cooling water channel is made of three A water channels, B water channels, C water channels spiral channels, A water channels, B water channels, C water channels spiral shell successively
Rotation is arranged side by side, and A water channels water inlet and the first B water channels water outlet, C water channel water outlets are located at the same side of motor stator, A water channels
Water outlet and the 2nd B water channels water outlet, C water channel water inlets are located at the other side of motor stator, and the screw pitch of three spiral channels is equal
It is equal；There are one B water channel water inlets for setting on the B water channels in the middle part of motor stator.
Compared with the prior art, the present invention has the beneficial effect that：
Cooling water channel structure of the present invention uses three spiral channel forms, setting both sides and intermediate water inlet, both sides water outlet, drop
Both ends temperature gradient in low magneto spiral channel so that motor radiates uniformly in an axial direction；What is be arranged among motor enters water
Mouthful, increase the heat dissipation performance at motor axial centre；Cooling water channel inner homogeneous is provided with rectangle flow-disturbing slot simultaneously, it is cooling
For liquid during flowing through water channel, the setting of rectangle flow-disturbing slot increases the disturbance of water channel water flow inside, strengthens the turbulent flow of water, separately
The setting of outer flow-disturbing slot also adds the contact area of motor and cooling water, improves the coefficient of heat transfer and heat transfer rate of motor, obtains
Better heat dissipation effect is arrived.By experiment simulation simulation it is found that the temperature of triple-helix structure of the present invention entirety is upgraded to 2 DEG C, Wen Sheng
It is reduced to the one third of single coil configuration, the temperature gradient at motor both ends, the more single spiral shell of motor stator heat dissipation can be effectively reduced
Rotation structure has obtained better heat dissipation effect.
The screw pitch of three spiral channels is equal in the present invention, since three water channel water inlets of motor are same not in motor
Side, so water channel water flow inside direction is different, the temperature for flowing through each position of motor is different, to make in motor different positions in an axial direction
Coolant liquid flow direction in each water channel in place, temperature difference are set, effectively prevents leading to the problem of local temperature overheat inside motor.
Description of the drawings：
Fig. 1 is the dimensional structure diagram of cooling water channel structure of the present invention；
Fig. 2 is rectangle flow-disturbing slot schematic diagram in spiral channel in cooling water channel structure of the present invention；
Fig. 3 changes for single-screw shape cooling water channel structure internal temperature rise；
Fig. 4 changes for three spiral shape cooling water channel structure internal temperature rises；
Figure label：1, A water channels water inlet；2, the first B water channel water outlets；3, C water channels water outlet；4, B water channels water inlet；
5, A water channels water outlet；6, the 2nd B water channel water outlets；7, C water channels water inlet；8, stator；9, flow-disturbing slot.
Specific implementation mode：
The present invention is explained further with reference to embodiment and attached drawing, but not in this, as to the application protection domain
It limits.
Fig. 1 is the schematic diagram of cooling water channel structure of the present invention, which is the motor stator and cooling water channel model of simplification, cold
But water channel is that a part for motor takes away the heat of stator by the flowing of cooling water channel internal water on the stator of motor, is risen
To heat dissipation effect.
Three screw type magneto cooling water channel structures of the invention, are included in the cooling water channel of 8 surface of motor stator setting,
The cooling water channel is made of three A water channels, B water channels, C water channels spiral channels, and A water channels, B water channels, C water channels spiral and are arranged successively
It sets, A water channels water inlet 1 and the first B water channels water outlet 2, C water channels water outlet 3 are located at the same side of motor stator, the water outlet of A water channels
Mouth 5 and the 2nd B water channels water outlet 6, C water channels water inlet 7 are located at the other side of motor stator, and the screw pitch of three spiral channels is homogeneous
Deng；There are one B water channels water inlets 4 for setting on the B water channels in the middle part of motor stator.
In the present invention rectangle is evenly arranged on each spiral channel closely the spiral channel inner surface of stator side
Flow-disturbing slot 9, and the setting of flow-disturbing slot is parallel with spiral channel hand of helix, screw pitch is identical as cooling water channel screw pitch.
The course of work and principle of three screw type magneto cooling water channel structures of the invention be：A part of coolant liquid is from A
Water channel water inlet enters, and is flowed out from the A water channel water outlets of the other side；A part of coolant liquid enters from C water channel water inlets, from another
Side C water channels outlet outflow；Some coolant liquid enters from intermediate B water channel water inlets, respectively from the first B water channels of both sides
Water outlet and the outflow of the 2nd B water channel water outlets；The screw pitch of the independent cooling spiral water channels of ABC tri- is equal, size is identical, three spiral shells
It revolves water channel mutually closely, is sequentially arranged according to A water channels, B water channels, C water channel sequences.The present invention is arranged both sides and centre and intakes, and two
Side is discharged, and reduces both ends temperature gradient in magneto cooling water channel so that motor radiates uniformly in an axial direction；It is set among motor
The water inlet set increases the heat dissipation performance at motor axial centre.
In addition, cooling water channel inner homogeneous is provided with the flow-disturbing slot of rectangle, the disturbance of water channel water flow inside is increased, is reinforced
The turbulent flow of coolant liquid in cooling water channel, while the contact area of motor stator and coolant liquid is increased, improve changing for motor
Hot coefficient and heat transfer rate have obtained better heat dissipation effect.
Embodiment 1
Three screw type magneto cooling water channel structure of the present embodiment is included in the cooling water of motor stator surface setting
Road, the cooling water channel are made of three A water channels, B water channels, C water channels spiral channels, and spiral is simultaneously successively for A water channels, B water channels, C water channels
Arrangement is set, and A water channels water inlet 1 and the first B water channels water outlet 2, C water channels water outlet 3 are located at the same side of motor stator, A water channels
Water outlet 5 and the 2nd B water channels water outlet 6, C water channels water inlet 7 are located at the other side of motor stator, the screw pitch of three spiral channels
It is equal；There are one B water channels water inlets 4 for setting on the B water channels in the middle part of motor stator.
By the cooling water channel structure of the present embodiment and existing single coil configuration, (there are one water channel water inlet and a water for tool
Road water outlet) carry out Experimental comparison：
The method for having used FLUENT Three-Dimensional Simulation of Temperature Fields, models inside Solidwork, inside ANSYS subdivision and
It calculates, giving the identical loss value of motor stator, (the given heat generation rate of this emulation is 150424w/m3, belong to general heat
Rate), the heat generation rate of motor stator is calculated with the mode of corresponding position loss divided by volume, heat under the same conditions,
Setting environment temperature is 300K, ensures that motor water channel water inlet area is identical, and water speed is equal, and imparting stator material is silicon steel sheet,
Cooling water channel material is iron, and the temperature for simulating motor cooling water channel internal water under two kinds of helical structures rises variation, such as Fig. 3 and Fig. 4
It is shown.Fig. 3 is that the temperature that cooling water channel is water under single coil configuration rises variation, it can be seen that the water inside motor water channel is flowing over
Temperature gradually increases in journey, changes nearly 6 DEG C；Fig. 4 is that the temperature of water under three spiral channel structure of the present embodiment rises variation, can be seen
It is different with the flow direction of water in C water channels to go out A water channels, temperature gradually rises in the flow process of water, and variation is 2 DEG C or so；Water
Road B from centre due to intaking, both sides water outlet, minimum among the temperature of water, is gradually risen to both sides, 2 DEG C or so of variation, this three
The temperature of helical structure entirety is upgraded to 2 DEG C, and Wen Sheng is reduced to the one third of single coil configuration.
The present invention does not address place and is suitable for the prior art.
Claims (2)
1. a kind of three screw type magneto cooling water channel structures are included in the cooling water channel of motor stator surface setting, special
Sign is that the cooling water channel is made of three A water channels, B water channels, C water channels spiral channels, A water channels, B water channels, C water channels spiral successively
It is arranged side by side, A water channels water inlet and the first B water channels water outlet, C water channel water outlets are located at the same side of motor stator, and A water channels go out
The mouth of a river and the 2nd B water channels water outlet, C water channel water inlets are located at the other side of motor stator, and the screw pitch of three spiral channels is homogeneous
Deng；There are one B water channel water inlets for setting on the B water channels in the middle part of motor stator.
2. three screw types magneto cooling water channel structure according to claim 1, it is characterised in that in each spiral water
Road is closely evenly arranged with the flow-disturbing slot of rectangle, and the setting of flow-disturbing slot and spiral channel on the spiral channel inner surface of stator side
Hand of helix is parallel, and screw pitch is identical as cooling water channel screw pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810398384.5A CN108336857A (en) | 2018-04-28 | 2018-04-28 | A kind of three screw type magneto cooling water channel structures |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810398384.5A CN108336857A (en) | 2018-04-28 | 2018-04-28 | A kind of three screw type magneto cooling water channel structures |
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| CN108336857A true CN108336857A (en) | 2018-07-27 |
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| CN201810398384.5A Pending CN108336857A (en) | 2018-04-28 | 2018-04-28 | A kind of three screw type magneto cooling water channel structures |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111222279A (en) * | 2020-01-14 | 2020-06-02 | 合肥工业大学 | Design method of high-power-density motor cooling system and motor designed by method |
| CN112003414A (en) * | 2020-08-25 | 2020-11-27 | 重庆千多昌科技有限公司 | Liquid-cooled motor for new energy automobile |
| CN112636497A (en) * | 2020-10-28 | 2021-04-09 | 合肥巨一动力系统有限公司 | Stator heat dissipation structure of permanent magnet synchronous motor and design method thereof |
| CN112994357A (en) * | 2021-04-09 | 2021-06-18 | 浙江合众新能源汽车有限公司 | Method for improving cooling of motor stator |
| CN116111748A (en) * | 2023-04-10 | 2023-05-12 | 湖南大学 | Reinforced synchronous heat dissipation stator structure |
| WO2024183991A1 (en) * | 2023-03-07 | 2024-09-12 | Vitesco Technologies GmbH | Cooling device, use of the cooling device, method for producing the cooling device, and electric motor stator |
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| CN202737644U (en) * | 2012-08-08 | 2013-02-13 | 南车株洲电机有限公司 | Water-cooling casing and motor |
| CN103475159A (en) * | 2012-06-08 | 2013-12-25 | 上海捷能汽车技术有限公司 | Driving motor liquid cooling device and manufacturing method thereof, and the driving 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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| CN107482866A (en) * | 2017-08-22 | 2017-12-15 | 重庆大学 | The double water flow passage cooling high power density permagnetic synchronous motors of spiral |
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| JP2004135386A (en) * | 2002-10-08 | 2004-04-30 | Shicoh Eng Co Ltd | Liquid cooling type hollow wire and electric machine using it |
| CN102684395A (en) * | 2011-03-18 | 2012-09-19 | 黄福章 | Novel cooling technology for environment-friendly electric vehicle motor |
| CN103475159A (en) * | 2012-06-08 | 2013-12-25 | 上海捷能汽车技术有限公司 | Driving motor liquid cooling device and manufacturing method thereof, and the driving motor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111222279A (en) * | 2020-01-14 | 2020-06-02 | 合肥工业大学 | Design method of high-power-density motor cooling system and motor designed by method |
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| CN112636497A (en) * | 2020-10-28 | 2021-04-09 | 合肥巨一动力系统有限公司 | Stator heat dissipation structure of permanent magnet synchronous motor and design method thereof |
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| CN112994357A (en) * | 2021-04-09 | 2021-06-18 | 浙江合众新能源汽车有限公司 | Method for improving cooling of motor stator |
| CN112994357B (en) * | 2021-04-09 | 2022-07-12 | 浙江合众新能源汽车有限公司 | Method for improving cooling of motor stator |
| WO2024183991A1 (en) * | 2023-03-07 | 2024-09-12 | Vitesco Technologies GmbH | Cooling device, use of the cooling device, method for producing the cooling device, and electric motor stator |
| CN116111748A (en) * | 2023-04-10 | 2023-05-12 | 湖南大学 | Reinforced synchronous heat dissipation stator structure |
| CN116111748B (en) * | 2023-04-10 | 2024-02-13 | 湖南大学 | Reinforced synchronous heat dissipation stator structure |
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Application publication date: 20180727 |