CN110601448A - Liquid cooling high power density position-free control PMSM motor - Google Patents
Liquid cooling high power density position-free control PMSM motor Download PDFInfo
- Publication number
- CN110601448A CN110601448A CN201910884033.XA CN201910884033A CN110601448A CN 110601448 A CN110601448 A CN 110601448A CN 201910884033 A CN201910884033 A CN 201910884033A CN 110601448 A CN110601448 A CN 110601448A
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- Prior art keywords
- hollow shaft
- liquid
- sliding bearing
- groove
- permanent magnet
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims abstract description 49
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 239000000110 cooling liquid Substances 0.000 claims abstract description 18
- 239000002826 coolant Substances 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 claims abstract description 6
- 238000005260 corrosion Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 3
- 239000003292 glue Substances 0.000 claims abstract description 3
- 238000004080 punching Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 7
- 229910001369 Brass Inorganic materials 0.000 claims description 5
- 239000010951 brass Substances 0.000 claims description 5
- 229920005560 fluorosilicone rubber Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 230000001360 synchronised effect Effects 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 239000002861 polymer material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
-
- 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
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
- H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
-
- 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
-
- 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
Abstract
The utility model provides a liquid cooling high power density does not have position control PMSM motor, including the open casing of left end, the casing left end is equipped with the end cover through bolt and sealing washer, shells inner wall is equipped with the stator, the inside rotation of stator is equipped with the rotor, stator left side portion and right side portion all adopt the casting glue as an organic whole with shells inner wall fixed seal, the rotor includes the hollow shaft and sets up the permanent magnet at the outer circumference of hollow shaft, central channel has been seted up along the axial direction to the hollow shaft inside, hollow shaft left end and right-hand member rotate with end cover and casing right side respectively and are connected, annular air gap has between the inner circle of permanent magnet excircle and stator, circulating coolant liquid runner structure has been. The invention has novel design and compact structure, the arranged circulating cooling liquid flow passage structure is arranged in the motor, the structure is slightly improved on the basis of the arrangement of the corrosion resistance, and the cooling effect is greatly improved, thereby ensuring the stability of the long-time continuous operation of the motor.
Description
Technical Field
The invention belongs to the technical field of permanent magnet synchronous motors, and particularly relates to a liquid-cooled high-power-density position-free control PMSM (permanent magnet synchronous motor).
Background
PMSM is known as permanent magnet synchronous motor, i.e. permanent magnet synchronous motor. The permanent magnet synchronous motor is widely applied to various motion control occasions, the permanent magnet synchronous motor can generate great heat when in use, the existing permanent magnet synchronous motor is generally cooled only by a fan blade at the tail end of the motor, the structure not only increases the volume of the motor, but also has poor cold type effect, the permanent magnet motor can not work normally for a long time, and the working efficiency is reduced; a PMSM motor that is used for new forms of energy bus on the existing market adopts the cooling pump to pump the coolant liquid and cools off the motor, but is used for the liquid passage of coolant liquid circulation to set up inside the shell of motor, and the air-cooled effect is better compared to this kind of cooling effect, but the cooling effect still remains to be improved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the liquid-cooled high-power-density position-free control PMSM with the cooling structure arranged inside the motor, compact overall structure, small volume and excellent cooling effect.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a liquid cooling high power density does not have position control PMSM motor, including the open casing of left end, the casing left end is equipped with the end cover through bolt and sealing washer, shells inner wall is equipped with the stator, the stator is inside to rotate along controlling the horizontal direction and is equipped with the rotor, the stator is connected with the cable of wearing out the casing, stator left side portion and right side portion all adopt the casting glue as an organic whole with shells inner wall fixed seal, the rotor includes the hollow shaft and sets up the permanent magnet at the outer circumference of hollow shaft, the inside central passage of having seted up along the axial direction of hollow shaft, hollow shaft left end and right-hand member rotate with end cover and casing right side respectively and are connected, the hollow shaft right-hand member stretches out the casing and is power take off end, annular air gap.
The hollow shaft is provided with positioning rings which are positioned at the left end and the right end of the permanent magnet and used for fixing the permanent magnet, the right side surface of the end cover is integrally provided with a left mounting cylinder, the inner wall of the right side of the shell is integrally provided with a right mounting cylinder, a left gap is formed between the right end of the left mounting cylinder and the positioning ring at the left side, and a right gap is formed between the left end of the right mounting cylinder and;
a left sliding bearing and a right sliding bearing are respectively arranged in the left mounting cylinder and the right mounting cylinder, the left sliding bearing and the right sliding bearing are identical in structure and are symmetrically arranged in the left and right directions, snap springs are respectively arranged between the outer ring of the left sliding bearing and the inner ring of the left mounting cylinder and between the outer ring of the right sliding bearing and the inner ring of the right mounting cylinder, the left end and the right side part of the hollow shaft are respectively in clearance fit with the inner ring of the left sliding bearing and the inner ring of the right sliding bearing, a left vertical through groove and a right vertical through groove are respectively formed in the right end surface of the left sliding bearing and the left end surface of the right sliding bearing along the radial direction, a circular flat groove communicated with the left end of the;
a liquid inlet channel communicated with the right gap is formed in the right side of the shell, and a liquid outlet channel communicated with the central channel is formed in the right side of the hollow shaft along the axial direction;
the left sliding bearing inner ring is provided with a left horizontal through groove which is correspondingly communicated with the left vertical through groove along the axial direction, and the right sliding bearing inner ring is provided with a right horizontal through groove which is correspondingly communicated with the right vertical through groove along the axial direction;
the circulating cooling liquid runner structure comprises a liquid inlet channel, a right gap, an annular air gap, a left vertical through groove, a left horizontal through groove, a round flat groove, a central channel and a liquid outlet channel which are sequentially communicated along the flowing direction of cooling liquid.
The right side of the shell is provided with a cooling pump, a liquid outlet of the cooling pump is communicated with the liquid inlet channel, and a liquid return port of the cooling pump is communicated with the liquid outlet channel.
The casing right side portion sets up the supplementary inlet that a plurality of interval set up along the hollow shaft circumferencial direction, and supplementary inlet communicates with the liquid outlet of cooling pump, and supplementary inlet leads to groove, right clearance intercommunication with right level in proper order along the coolant liquid flow direction.
The sealing ring and the clamp spring are both made of fluorosilicone rubber with strong corrosion resistance, the hollow shaft is made of stainless steel materials, the positioning ring is made of brass materials, the permanent magnet is made of stainless steel materials, and the permanent magnet is bonded to the outside of the hollow shaft and then is injected by pouring sealant.
The permanent magnet comprises a plurality of rotor punching sheets, all the rotor punching sheets are coaxially and uniformly installed on the outer circumference of the hollow shaft at intervals, the rotor punching sheets are connected through four pieces of magnetic steel, the length direction of the magnetic steel is parallel to the central line of the hollow shaft, the width directions of the four pieces of magnetic steel surround to form a square, and a sheath is coaxially arranged outside the rotor punching sheets.
By adopting the technical scheme, the cooling liquid adopts ethylene glycol which has certain corrosivity, so that the stator and the shell are integrally injected by pouring sealant or other high polymer materials, and a welding spot of a motor lead and an iron core are protected from being corroded; the hollow shaft is made of stainless steel, the positioning ring is made of brass, the permanent magnet is made of stainless steel, and the permanent magnet is bonded to the outside of the hollow shaft and then is injected by pouring sealant or other high polymer materials.
The circulating cooling liquid flow channel structure is arranged in the motor, the structure is slightly improved on the basis of the arrangement of the corrosion resistance, the cooling effect is greatly improved, and the stability of the motor in long-time continuous operation is ensured.
The graphite bearing is adopted to left side slide bearing and right slide bearing, has good lubricity to set up vertical logical groove in the bearing side for the circulation of coolant liquid, supplementary inlet mainly cools off to right slide bearing. The power right hollow shaft of the cooling pump is used for driving, and in the working process of the motor, the cooling liquid synchronously realizes circulating cooling.
Because the rotor rotates at high speed, in order to reduce resistance, a sheath is arranged outside the rotor punching sheet, and the outer circumferential surface of the sheath is polished, so that the resistance of the circulating flow of the cooling liquid is reduced.
The motor is designed without a position sensor, and the rotor adopts embedded magnetic poles, so that the salient pole effect is increased, and the position information of the rotor can be calculated at a lower rotating speed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the construction of the left plain bearing of FIG. 1;
FIG. 3 is a right side view of FIG. 2;
fig. 4 is a schematic cross-sectional structure of the rotor.
Detailed Description
As shown in fig. 1-4, the liquid-cooled high-power-density position-free control PMSM motor of the present invention includes a casing 1 with an open left end, the left end of the casing 1 is provided with an end cover 4 through a bolt 2 and a seal ring 3, the inner wall of the casing 1 is provided with a stator 5, the stator 5 is rotatably provided with a rotor in the left-right horizontal direction, the stator 5 is connected with a cable 7 penetrating through the casing 1, the left side part and the right side part of the stator 5 are fixedly sealed with the inner wall of the casing 1 by a potting compound 8, the rotor includes a hollow shaft 9 and a permanent magnet 10 arranged on the outer circumference of the hollow shaft 9, the hollow shaft 9 is provided with a central channel 11 in the axial direction, the left end and the right end of the hollow shaft 9 are respectively rotatably connected with the end cover 4 and the right side of the casing 1, the hollow shaft 9 extends out of the casing 1 to serve as a power output end.
The hollow shaft 9 is provided with positioning rings 13 which are positioned at the left end and the right end of the permanent magnet 10 and used for fixing the permanent magnet 10, the right side surface of the end cover 4 is integrally provided with a left mounting cylinder 14, the right inner wall of the right side of the shell 1 is integrally provided with a right mounting cylinder 15, a left gap 16 is formed between the right end of the left mounting cylinder 14 and the positioning ring 13 at the left side, and a right gap 17 is formed between the left end of the right mounting cylinder 15 and;
a left sliding bearing 18 and a right sliding bearing 19 are respectively arranged in the left mounting cylinder 14 and the right mounting cylinder 15, the left sliding bearing 18 and the right sliding bearing 19 are identical in structure and are arranged in bilateral symmetry, snap springs 20 are respectively arranged between the outer ring of the left sliding bearing 18 and the inner ring of the left mounting cylinder 14 and between the outer ring of the right sliding bearing 19 and the inner ring of the right mounting cylinder 15, the left end and the right end of the hollow shaft 9 are respectively in clearance fit with the inner ring of the left sliding bearing 18 and the inner ring of the right sliding bearing 19, a left vertical through groove 21 and a right vertical through groove 22 are respectively arranged on the right end surface of the left sliding bearing 18 and the left end surface of the right sliding bearing 19 along the radial direction, a circular flat groove 23 communicated with the left end of the central channel 11 is arranged on the right side surface;
the right side of the shell 1 is provided with a liquid inlet channel 24 communicated with the right gap 17, and the right side of the hollow shaft 9 is provided with a liquid outlet channel 25 communicated with the central channel 11 along the axial direction;
a left horizontal through groove 26 correspondingly communicated with the left vertical through groove 21 is formed in the inner ring of the left sliding bearing 18 in the axial direction, and a right horizontal through groove 27 correspondingly communicated with the right vertical through groove 22 is formed in the inner ring of the right sliding bearing 19 in the axial direction;
the circulating cooling liquid flow channel structure comprises a liquid inlet channel 24, a right gap 17, an annular air gap 12, a left gap 16, a left vertical through groove 21, a left horizontal through groove 26, a round flat groove 23, a central channel 11 and a liquid outlet channel 25 which are sequentially communicated along the flowing direction of cooling liquid. The arrows in the figure indicate the direction of flow of the cooling liquid.
The right side of the shell 1 is provided with a cooling pump 28, a liquid outlet of the cooling pump 28 is communicated with the liquid inlet channel 24, and a liquid return port of the cooling pump 28 is communicated with the liquid outlet channel 25.
The right side part of the shell 1 is provided with a plurality of auxiliary liquid inlets 29 arranged at intervals along the circumferential direction of the hollow shaft 9, the auxiliary liquid inlets 29 are communicated with a liquid outlet of the cooling pump 28, and the auxiliary liquid inlets 29 are sequentially communicated with the right horizontal through groove 27 and the right gap 17 along the flowing direction of the cooling liquid.
The sealing ring 3 and the clamp spring 20 are both made of fluorosilicone rubber with strong corrosion resistance, the hollow shaft 9 is made of stainless steel materials, the positioning ring 13 is made of brass materials, the permanent magnet 10 is made of stainless steel materials, and the permanent magnet 10 is bonded outside the hollow shaft 9 and then is injected with pouring sealant.
The permanent magnet 10 comprises a plurality of rotor punching sheets 30, all the rotor punching sheets 30 are coaxially and uniformly installed on the outer circumference of the hollow shaft 9 at intervals, the rotor punching sheets 30 are connected through four magnetic steels 31, the length direction of the magnetic steels 31 is parallel to the central line of the hollow shaft 9, the width directions of the four magnetic steels 31 surround to form a square, and a sheath 31 is coaxially arranged outside the rotor punching sheets 30.
The cooling liquid in the invention adopts ethylene glycol which has certain corrosivity, so that the stator 5 and the shell 1 are integrated by adopting pouring sealant or other high polymer materials in an injection molding manner, and the welding spot of the motor lead and the iron core are protected from being corroded; the hollow shaft 9 is made of stainless steel, the positioning ring 13 is made of brass, the permanent magnet 10 is made of stainless steel, and the permanent magnet 10 is bonded outside the hollow shaft 9 and then is injected by pouring sealant or other high polymer materials.
The circulating cooling liquid flow channel structure is arranged in the motor, the structure is slightly improved on the basis of the arrangement of the corrosion resistance, the cooling effect is greatly improved, and the stability of the motor in long-time continuous operation is ensured.
The left sliding bearing 18 and the right sliding bearing 19 both adopt graphite bearings, have good lubricity, and a vertical through groove is formed in the side face of the bearing, so that the cooling liquid circulates, and the auxiliary liquid inlet 29 mainly cools the right sliding bearing 19. The power of the cooling pump 28 is driven by the right hollow shaft 9, and the cooling liquid synchronously realizes circulating cooling in the working process of the motor.
Because the rotor rotates at high speed, in order to reduce resistance, a sheath 31 is arranged outside the rotor punching sheet 30, and the outer circumferential surface of the sheath 31 is polished, so that the resistance of the circulating flow of the cooling liquid is reduced.
The motor is designed without a position sensor, and the rotor adopts embedded magnetic poles, so that the salient pole effect is increased, and the position information of the rotor can be calculated at a lower rotating speed.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a liquid cooling high power density does not have position control PMSM motor, includes the open casing of left end, and the casing left end is equipped with the end cover through bolt and sealing washer, and shells inner wall is equipped with the stator, and the stator is inside to rotate along controlling the horizontal direction and is equipped with the rotor, and the stator is connected with the cable of wearing out the casing, its characterized in that: stator left side portion and right side portion all adopt the casting glue as an organic whole with casing inner wall fixed seal, and the rotor includes hollow shaft and the permanent magnet of setting at the outer circumference of hollow shaft, and the central passage has been seted up along the axial direction to the hollow shaft is inside, and hollow shaft left end and right-hand member rotate with end cover and casing right side respectively and are connected, and the hollow shaft right-hand member stretches out the casing and is power take off end, has annular air gap between the inner circle of permanent magnet excircle and stator, has seted up circulating coolant liquid runner structure between annular air gap and the central.
2. A liquid cooled high power density position free control PMSM machine as claimed in claim 1 wherein: the hollow shaft is provided with positioning rings which are positioned at the left end and the right end of the permanent magnet and used for fixing the permanent magnet, the right side surface of the end cover is integrally provided with a left mounting cylinder, the inner wall of the right side of the shell is integrally provided with a right mounting cylinder, a left gap is formed between the right end of the left mounting cylinder and the positioning ring at the left side, and a right gap is formed between the left end of the right mounting cylinder and;
a left sliding bearing and a right sliding bearing are respectively arranged in the left mounting cylinder and the right mounting cylinder, the left sliding bearing and the right sliding bearing are identical in structure and are symmetrically arranged in the left and right directions, snap springs are respectively arranged between the outer ring of the left sliding bearing and the inner ring of the left mounting cylinder and between the outer ring of the right sliding bearing and the inner ring of the right mounting cylinder, the left end and the right side part of the hollow shaft are respectively in clearance fit with the inner ring of the left sliding bearing and the inner ring of the right sliding bearing, a left vertical through groove and a right vertical through groove are respectively formed in the right end surface of the left sliding bearing and the left end surface of the right sliding bearing along the radial direction, a circular flat groove communicated with the left end of the;
a liquid inlet channel communicated with the right gap is formed in the right side of the shell, and a liquid outlet channel communicated with the central channel is formed in the right side of the hollow shaft along the axial direction;
the left sliding bearing inner ring is provided with a left horizontal through groove which is correspondingly communicated with the left vertical through groove along the axial direction, and the right sliding bearing inner ring is provided with a right horizontal through groove which is correspondingly communicated with the right vertical through groove along the axial direction;
the circulating cooling liquid runner structure comprises a liquid inlet channel, a right gap, an annular air gap, a left vertical through groove, a left horizontal through groove, a round flat groove, a central channel and a liquid outlet channel which are sequentially communicated along the flowing direction of cooling liquid.
3. A liquid cooled high power density position free control PMSM machine as claimed in claim 2 wherein: the right side of the shell is provided with a cooling pump, a liquid outlet of the cooling pump is communicated with the liquid inlet channel, and a liquid return port of the cooling pump is communicated with the liquid outlet channel.
4. A liquid cooled high power density position free control PMSM machine as claimed in claim 3 wherein: the casing right side portion sets up the supplementary inlet that a plurality of interval set up along the hollow shaft circumferencial direction, and supplementary inlet communicates with the liquid outlet of cooling pump, and supplementary inlet leads to groove, right clearance intercommunication with right level in proper order along the coolant liquid flow direction.
5. A liquid cooled high power density position free control PMSM machine as claimed in claim 2 wherein: the sealing ring and the clamp spring are both made of fluorosilicone rubber with strong corrosion resistance, the hollow shaft is made of stainless steel materials, the positioning ring is made of brass materials, the permanent magnet is made of stainless steel materials, and the permanent magnet is bonded to the outside of the hollow shaft and then is injected by pouring sealant.
6. A liquid cooled high power density position free control PMSM machine as claimed in claim 2 wherein: the permanent magnet comprises a plurality of rotor punching sheets, all the rotor punching sheets are coaxially and uniformly installed on the outer circumference of the hollow shaft at intervals, the rotor punching sheets are connected through four pieces of magnetic steel, the length direction of the magnetic steel is parallel to the central line of the hollow shaft, the width directions of the four pieces of magnetic steel surround to form a square, and a sheath is coaxially arranged outside the rotor punching sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910884033.XA CN110601448A (en) | 2019-09-19 | 2019-09-19 | Liquid cooling high power density position-free control PMSM motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910884033.XA CN110601448A (en) | 2019-09-19 | 2019-09-19 | Liquid cooling high power density position-free control PMSM motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110601448A true CN110601448A (en) | 2019-12-20 |
Family
ID=68860914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910884033.XA Pending CN110601448A (en) | 2019-09-19 | 2019-09-19 | Liquid cooling high power density position-free control PMSM motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110601448A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106702A (en) * | 2020-02-17 | 2020-05-05 | 广东博智林机器人有限公司 | Motor casing and motor |
| CN112213525A (en) * | 2020-09-22 | 2021-01-12 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140258533A1 (en) * | 2013-03-06 | 2014-09-11 | Vmware, Inc. | Method and System for Providing a Roaming Remote Desktop |
| CN105337452A (en) * | 2015-12-09 | 2016-02-17 | 南京磁谷科技有限公司 | Immersion type liquid cooling structure of isolation rotor in magnetic levitation motor |
| CN105871101A (en) * | 2016-05-23 | 2016-08-17 | 杭州万辰机电科技有限公司 | High-speed permanent magnet motor |
| CN205622371U (en) * | 2016-05-23 | 2016-10-05 | 杭州万辰机电科技有限公司 | High speed permanent magnet motors |
| CN210444136U (en) * | 2019-09-19 | 2020-05-01 | 黄河科技学院 | Liquid cooling high power density position-free control PMSM motor |
-
2019
- 2019-09-19 CN CN201910884033.XA patent/CN110601448A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140258533A1 (en) * | 2013-03-06 | 2014-09-11 | Vmware, Inc. | Method and System for Providing a Roaming Remote Desktop |
| CN105337452A (en) * | 2015-12-09 | 2016-02-17 | 南京磁谷科技有限公司 | Immersion type liquid cooling structure of isolation rotor in magnetic levitation motor |
| CN105871101A (en) * | 2016-05-23 | 2016-08-17 | 杭州万辰机电科技有限公司 | High-speed permanent magnet motor |
| CN205622371U (en) * | 2016-05-23 | 2016-10-05 | 杭州万辰机电科技有限公司 | High speed permanent magnet motors |
| CN210444136U (en) * | 2019-09-19 | 2020-05-01 | 黄河科技学院 | Liquid cooling high power density position-free control PMSM motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106702A (en) * | 2020-02-17 | 2020-05-05 | 广东博智林机器人有限公司 | Motor casing and motor |
| CN112213525A (en) * | 2020-09-22 | 2021-01-12 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
| CN112213525B (en) * | 2020-09-22 | 2024-04-09 | 陕西航空电气有限责任公司 | Motor test switching structure and test structure thereof |
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