CN105576863A - Direct-cooling direct-drive type motor with copper tube structured stator - Google Patents
Direct-cooling direct-drive type motor with copper tube structured stator Download PDFInfo
- Publication number
- CN105576863A CN105576863A CN201511009802.XA CN201511009802A CN105576863A CN 105576863 A CN105576863 A CN 105576863A CN 201511009802 A CN201511009802 A CN 201511009802A CN 105576863 A CN105576863 A CN 105576863A
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- China
- Prior art keywords
- direct
- stator
- iron core
- water channel
- copper pipe
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a direct-cooling direct-drive type motor with a copper tube structured stator, belongs to the technical field of motor equipment, and aims to solve the problems of low efficiency, complex structure and impossibility of realizing high-speed operation of a motor at a low voltage of the existing motor system for a new energy automobile. The direct-cooling direct-drive type motor comprises a shell, a stator iron core, a rotor iron core, a permanent magnet, a driving module, a driving power supply, copper tubes, a rotating shaft and water channel rings, wherein the stator iron core is mounted in the shell; multiple slot holes are formed in the annular body of the stator iron core; the copper tubes are mounted in each slot hole; the two water channel rings are arranged on the two sides of the stator iron core respectively; the copper tubes are connected with the water channel rings through water pipe joints; the permanent magnet is mounted on the outer cylindrical surface of the rotor iron core; the rotor iron core is arranged in the annular body of the stator iron core; the rotating shaft is mounted on the rotor iron core; the driving module and the driving power supply are connected, and are arranged in a clamping slot in one side of the shell. The direct-cooling direct-drive type motor is simple in structure, convenient to manufacture, easy to realize batch production, easy to maintain, low in production cost and easy to realize promotion and application.
Description
Technical field
The present invention relates to the direct-cooled direct-drive motor that stator adopts copper pipe structure, belong to motor device technical field.
Background technology
In new-energy automobile, the performance index of motor produce directly impact to the dynamic property of car load and mileages of continuation, and the power density of motor determines the quality of performance index.At present, car load factory constantly proposes higher requirement to the power density of motor, but in conventional motors, the feature of motor body structure makes the room for promotion of electric system power density more and more less.Therefore, New-type electric machine should be set about from aspects such as electric machine structure, the type of cooling and motor drive modes, keeping under the constant or prerequisite that slightly improves of electric system efficiency, improve power density, simplified structure, the development for new-energy automobile can play great impetus.
Current alternating current motor stator coil is different from setting-in wire laying mode according to the shape of coiling, can be divided into centralized winding and distributed winding two class.Coiling and the setting-in of centralized winding are fairly simple, but efficiency is lower, and runnability is also poor.So most alternating current machine is all application distribution winding.But no matter be which kind of winding configuration, each magnetic pole forms coil groups by some coils according to certain rule setting-in coiling, after energising, form the magnetic pole of opposed polarity; For conventional motors, the grade of driving voltage develops towards both direction, and low-voltage driving mode has more feature, because stator winding circle is more, induced electromotive force is higher, therefore be difficult to realize high speed operation of motor at the lower voltage, and want motor is under low pressure run, design must be optimized to motor body structure.
Summary of the invention
The object of the invention is to solve existing new-energy automobile motor system effectiveness low, complex structure, the problem of motor under low pressure high-speed cruising can not be realized, and then provide stator to adopt the direct-cooled direct-drive motor of copper pipe structure.
Technical scheme of the present invention:
Stator adopts the direct-cooled direct-drive motor of copper pipe structure to comprise housing, stator core, rotor core, permanent magnet, driver module, driving power, copper pipe, rotating shaft and two water channel rings, described stator core is mounted in housing, described stator core is cirque structure, the ring body of stator core is provided with some slotted eyes, all copper pipe is installed in each slotted eye, described two water channel rings arrange the both sides of stator core respectively, copper pipe is connected by water pipe head and water channel ring, described rotor core is cylindrical structural, the external cylindrical surface of rotor core is provided with permanent magnet, rotor core is arranged in the ring body of stator core, rotor core is provided with rotating shaft, described driver module and driving power connect and are arranged in a side bayonet slot of housing.
Preferred: two described water channel rings are also provided with water injection pipe, the other end of water injection pipe is arranged on the outside of housing through housing.
Preferred: the two ends of the copper pipe in described stator core slot are all protruded stator core and arranged.
Preferred: described water channel ring is loop configuration, the cross section of water channel ring is in " returning " shape, and the inner face diameter of water channel ring is greater than the outer face diameter of rotor core.
The present invention has following beneficial effect: stator of the present invention adopts the direct-cooled direct-drive motor of copper pipe structure, stator adopts copper pipe structure, doublely cool " water channel ", every direct drive of root copper pipe, single copper pipe replaces multiturn coil, the magnetic field that equivalent multiturn coil produces is come in the magnetic field produced by single conductor, and then produces the actuating force needed for vehicle; Replace traditional water-cooled machine by the mode of shell body cooling coil by the mode directly cooled electrical conductor simultaneously, effectively can reduce conductor Yin Wendu and raise the excess loss brought; Adopt motor and motor driver integral structure to replace common motor, controller Split type structure, significantly reduce system bulk, effectively improve electric system power density.Organization distribution of the present invention is ingenious, and structure is simple, is convenient to install, is easy to mass production, and be easy to safeguard, production cost is low, is easy to apply.
Accompanying drawing explanation
Fig. 1 is the structural representation that stator adopts the direct-cooled direct-drive motor of copper pipe structure;
1-housing in figure, 2-stator core, 3-rotor core, 4-permanent magnet, 5-driver module, 6-driving power, 7-copper pipe, 8-rotating shaft, 9-water channel ring, 10-water pipe head, 11-water injection pipe.
Embodiment
Embodiment one: composition graphs 1 illustrates present embodiment, the stator of present embodiment adopts the direct-cooled direct-drive motor of copper pipe structure to comprise housing 1, stator core 2, rotor core 3, permanent magnet 4, driver module 5, driving power 6, copper pipe 7, rotating shaft 8 and two water channel rings 9, stator core 2 is mounted in housing 1, described stator core 2 is cirque structure, the ring body of stator core 2 is provided with some slotted eyes, in each slotted eye, copper pipe 7 is all installed, described two water channel rings 9 arrange the both sides of stator core 2 respectively, copper pipe 7 is connected by water pipe head 10 and water channel ring 9, described rotor core 3 is cylindrical structural, the external cylindrical surface of rotor core 3 is provided with permanent magnet 4, rotor core 3 is arranged in the ring body of stator core 2, rotor core 3 is provided with rotating shaft 8, described driver module 5 and driving power 6 connect and are arranged in a side bayonet slot of housing 1, two described water channel rings 9 are also provided with water injection pipe 11, and the other end of water injection pipe 11 is arranged on the outside of housing 1 through housing 1, the two ends of the copper pipe 7 in described stator core 2 slotted eye are all protruded stator core and are arranged, described water channel ring 9 is loop configuration, and the cross section of water channel ring 9 is in " returning " shape, and the inner face diameter of water channel ring 9 is greater than the outer face diameter of rotor core 3.Setting like this, this direct-cooling type motor stator adopts the coil of copper pipe structure one side generation electromagnetic torque another one to do with the cooling being cooling liquid " water channel ", during work, motor stator core 2 produces magnetic field and coordinates with rotor core 3 and realize rotating, pass through water injection pipe 11 to water filling or coolant in water channel ring 9 simultaneously, full water or coolant is all filled in the copper pipe 7 being so arranged on stator core 2 inside, copper pipe 7 forms a circulatory system with the water channel ring 9 being arranged on two ends simultaneously, can water while electric machine rotation in recycling replacing copper pipe 7 or medium, realize cooling effect, driving power 6 is a kind of devices with both positive and negative polarity conversion, can be realized the both positive and negative polarity conversion of driving power 6, thus realize rotating and reverse of motor during work by modular converter.
The iron loss of conventional motors, stator winding copper loss, the eddy current loss of rotor magnetic steel, mechanical loss are the main causes that the motor feels hot, rough estimates copper wastage accounts for about 75% of total losses, it is iron loss about 4 times, the electric machine casing type of cooling is adopted not taken away by stator heat rapidly, thus heat radiation difficulty is caused, temperature rise is too high, easily causes permanent magnet overheated and produces irreversible demagnetization.Experiment records when coolant water temperature reaches 70 DEG C, and stator temperature can reach about 150 DEG C.It is the main cause that copper loss increases that temperature rises, and for same stator coil, temperature often increases by 10 DEG C, and stator coil resistance value increases about 2%, therefore, if stator temperature can be down to coolant water temperature close, effectively can increase electric efficiency.As calculated, if stator temperature is down to 70 DEG C by 150 DEG C, copper loss can reduce by 16%, electric efficiency can be improved close to 1 percentage point.This project adopts the mode directly cooled stator coil, in stator coil conductor, pass to cooling fluid, and utilize the cooling fluid in copper pipe to reduce stator temperature, this type of cooling can significantly improve cooling effectiveness.
For adopted electric machine structure, the operation mechanism of further investigation motor start-up procedure, takes the impulse current in effective method suppression start-up course, makes full use of the detent torque that impulse current improves motor.Its achievement in research controls to have certain directive significance to the electric motor starting of single layer winding single coil drive.
This New-type electric machine is particularly suitable for new-energy automobile, and outstanding Heterosis is:
1) reliability is high, has good fault-tolerant ability, and every groove drives separately;
2) high, the motor of power density and controller integral structure, can improve more than 10% by Permanent-magnet Synchronous-motor Speed Servo System power density;
3) structure is simple, is easy to mass production, is easy to safeguard, production cost is low, is easy to apply;
4) low-voltage, safe and reliable.
The exemplary illustration of present embodiment just to this patent, does not limit its protection range, and those skilled in the art can also change, as long as no the Spirit Essence exceeding this patent, in the protection range of this patent its local.
Claims (4)
1. stator adopts the direct-cooled direct-drive motor of copper pipe structure, comprise housing (1), stator core (2), rotor core (3), permanent magnet (4), driver module (5), driving power (6), copper pipe (7), rotating shaft (8) and two water channel rings (9), it is characterized in that: described stator core (2) is mounted in housing (1), described stator core (2) is cirque structure, the ring body of stator core (2) is provided with some slotted eyes, copper pipe (7) is all installed in each slotted eye, described two water channel rings (9) arrange the both sides of stator core (2) respectively, copper pipe (7) is connected by water pipe head (10) and water channel ring (9), described rotor core (3) is cylindrical structural, the external cylindrical surface of rotor core (3) is provided with permanent magnet (4), rotor core (3) is arranged in the ring body of stator core (2), rotor core (3) is provided with rotating shaft (8), described driver module (5) and driving power (6) connect and are arranged in a side bayonet slot of housing (1).
2. stator according to claim 1 adopts the direct-cooled direct-drive motor of copper pipe structure, it is characterized in that: two described water channel rings (9) are also provided with water injection pipe (11), the other end of water injection pipe (11) is arranged on the outside of housing (1) through housing (1).
3. stator according to claim 1 adopts the direct-cooled direct-drive motor of copper pipe structure, it is characterized in that: the two ends of the copper pipe (7) in described stator core (2) slotted eye are all protruded stator core and arranged.
4. stator according to claim 1 adopts the direct-cooled direct-drive motor of copper pipe structure, it is characterized in that: described water channel ring (9) is loop configuration, the cross section of water channel ring (9) is in " returning " shape, and the inner face diameter of water channel ring (9) is greater than the outer face diameter of rotor core (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009802.XA CN105576863B (en) | 2015-12-29 | 2015-12-29 | Stator uses the direct-cooled direct-drive motor of copper pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511009802.XA CN105576863B (en) | 2015-12-29 | 2015-12-29 | Stator uses the direct-cooled direct-drive motor of copper pipe structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105576863A true CN105576863A (en) | 2016-05-11 |
| CN105576863B CN105576863B (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511009802.XA Expired - Fee Related CN105576863B (en) | 2015-12-29 | 2015-12-29 | Stator uses the direct-cooled direct-drive motor of copper pipe structure |
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| Country | Link |
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| CN (1) | CN105576863B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108270301A (en) * | 2018-01-25 | 2018-07-10 | 华中科技大学 | A kind of stator structure and its motor with winding overhang cooling structure |
| CN112054613A (en) * | 2020-04-27 | 2020-12-08 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Water-cooled motor stator and motor |
| US10933375B1 (en) | 2019-08-30 | 2021-03-02 | Fluid Equipment Development Company, Llc | Fluid to fluid pressurizer and method of operating the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2897382A (en) * | 1957-02-04 | 1959-07-28 | British Thomson Houston Co Ltd | Dynamo-electric machines |
| CN101095273A (en) * | 2003-11-05 | 2007-12-26 | 艾拉斯科普库空气动力股份有限公司 | Improved cooling for an electric motor or generator |
| CN101268599A (en) * | 2005-09-20 | 2008-09-17 | 西门子公司 | Electric machine |
| CN201742181U (en) * | 2010-06-25 | 2011-02-09 | 武汉登奇机电技术有限公司 | Motor with embedded liquid cooling pipelines |
| CN103840569A (en) * | 2012-11-21 | 2014-06-04 | 财团法人工业技术研究院 | Stator module and magnetic force generating member thereof |
| CN104868628A (en) * | 2014-02-21 | 2015-08-26 | 斗山重工业株式会社 | Separated Coolant Circulation Structure For Water-cooled Power Generator And Cooling Method Thereof |
-
2015
- 2015-12-29 CN CN201511009802.XA patent/CN105576863B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2897382A (en) * | 1957-02-04 | 1959-07-28 | British Thomson Houston Co Ltd | Dynamo-electric machines |
| CN101095273A (en) * | 2003-11-05 | 2007-12-26 | 艾拉斯科普库空气动力股份有限公司 | Improved cooling for an electric motor or generator |
| CN101268599A (en) * | 2005-09-20 | 2008-09-17 | 西门子公司 | Electric machine |
| CN201742181U (en) * | 2010-06-25 | 2011-02-09 | 武汉登奇机电技术有限公司 | Motor with embedded liquid cooling pipelines |
| CN103840569A (en) * | 2012-11-21 | 2014-06-04 | 财团法人工业技术研究院 | Stator module and magnetic force generating member thereof |
| CN104868628A (en) * | 2014-02-21 | 2015-08-26 | 斗山重工业株式会社 | Separated Coolant Circulation Structure For Water-cooled Power Generator And Cooling Method Thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108270301A (en) * | 2018-01-25 | 2018-07-10 | 华中科技大学 | A kind of stator structure and its motor with winding overhang cooling structure |
| CN108270301B (en) * | 2018-01-25 | 2020-06-26 | 华中科技大学 | Stator structure with winding end cooling structure and motor thereof |
| US10933375B1 (en) | 2019-08-30 | 2021-03-02 | Fluid Equipment Development Company, Llc | Fluid to fluid pressurizer and method of operating the same |
| CN112054613A (en) * | 2020-04-27 | 2020-12-08 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Water-cooled motor stator and motor |
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| Publication number | Publication date |
|---|---|
| CN105576863B (en) | 2018-05-04 |
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Granted publication date: 20180504 Termination date: 20211229 |
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