CN110429728A - A kind of permanent magnetic brushless servomotor - Google Patents
A kind of permanent magnetic brushless servomotor Download PDFInfo
- Publication number
- CN110429728A CN110429728A CN201910751731.2A CN201910751731A CN110429728A CN 110429728 A CN110429728 A CN 110429728A CN 201910751731 A CN201910751731 A CN 201910751731A CN 110429728 A CN110429728 A CN 110429728A
- Authority
- CN
- China
- Prior art keywords
- rotor
- hollow shaft
- permanent magnetic
- plate
- shelves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004593 Epoxy Substances 0.000 claims abstract description 11
- 230000006698 induction Effects 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 230000004580 weight loss Effects 0.000 claims description 5
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 208000016261 weight loss Diseases 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 238000012546 transfer Methods 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
-
- 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
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
- H02K1/32—Rotating 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
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
-
- 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
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields 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
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
- Brushless Motors (AREA)
Abstract
A kind of permanent magnetic brushless servomotor, including rotor, the rotor are sleeve rotor comprising rotor core, permanent-magnet material, front end-plate, end plate, hollow shaft；The hollow shaft be disposed with from driving end male splined shaft stretch, fore bearing shelves, several exhaust vents, iron core shelves, positioning spline, axial retaining ring, several air inlet holes, rear bearing file location；Air inlet hole, exhaust vent in the hollow shaft, the air gap between the cavity and motor stator and rotor of hollow shaft are interconnected；Fore bearing is installed at fore bearing shelves, rotor core is installed at rotor core shelves, the front end-plate and end plate of positioning are installed in rotor core both ends respectively；Induction permanent magnet on rotor is arranged on epoxy bushing；Rear bearing file location installs rear bearing and the rear bearing is placed on rear end cap.Good heat dissipation effect of the present invention, structure is simple, has saved motor cost, improves the output torque of servomotor, mitigates weight, and be able to extend servomotor uses the time.
Description
Technical field
The present invention relates to a kind of permanent magnetic brushless servomotor, in particular to a kind of permanent magnetic brushless servomotor.
Background technique
Permanent magnetic brushless servomotor is widely used in all trades and professions.Currently, servo motor has, power density is high, imitates
Rate height, high reliablity, it is non-maintaining the advantages that, directly as the power source with dynamic load, improve the efficiency of whole system, shorten and produce
The product production cycle.
Conventional permanent magnet brushless servo motor is solid axle construction, and solid spindle motor weight increases, and motor cost increases.Load
When excessive, be easy to happen axis stretch bending torque it is excessive, lead to off-axis, entire motor is not available.
When existing servo motor works, because there are copper loss, iron loss for fever when coil windings flow through electric current, cause servo electric
The loss of machine output power, meanwhile, the heat transfer inside servo motor needs when radiating by insulating materials, stator core, machine
The components such as shell, heat transmitting is very slow, and material conducts heat rate is low, and heat dissipation effect is poor, is easy to cause motor internal temperature excessively high, and motor turns
The permanent magnetic material performance in sublist face can weaken at high temperature, and demagnetization risk occurs, leverages the service life of servo motor.
Summary of the invention
The present invention provides that motor quality is light, and structure is simple, a kind of reliable permanent magnetic brushless servomotor of function admirable.In it
Portion circulates cooling air, and directly cooling, good heat dissipation effect can be carried out to hollow shaft, stator and rotor.
The technical scheme adopted by the invention is that:
A kind of permanent magnetic brushless servomotor, including rotor, the rotor are sleeve rotor comprising rotor core, permanent-magnet material, preceding
End plate, end plate, hollow shaft；The hollow shaft be disposed with from driving end male splined shaft stretch, fore bearing shelves, several outlet air
Hole, iron core shelves, positioning spline, axial retaining ring, several air inlet holes, rear bearing file location；Air inlet hole, outlet air in the hollow shaft
Hole, hollow shaft cavity and motor stator and rotor between air gap be interconnected；Fore bearing is installed at the fore bearing shelves, it should
It is boss on the right side of fore bearing shelves, positions fore bearing；Rotor core, rotor core both ends difference are installed at the rotor core shelves
Installation positioning fixed front end-plate and end plate；It is positioned on the outside of the front end-plate by the boss on the right side of the fore bearing shelves, after described
Pass through the axial retaining ring axially position on the outside of the epoxy bushing that the positioning key at positioning spline is installed, the sense on rotor on the outside of end plate
Permanent magnet is answered to be arranged on epoxy bushing；The rear bearing file location installs rear bearing and the rear bearing is placed on rear end cap.
Several exhaust vents are radial circular hole；Several air inlet holes are the inclined hole of oblique 60 degree of acute angles.
The hollow shaft anti-drive end is provided with 45 degree of chamferings.
There is antirust coat inside and outside the hollow shaft.
Weight loss ventilation hole is evenly equipped on the rotor iron core lamination, the front end-plate and end plate are processed in same position
There is weight loss ventilation hole.
The electric machine casing inner wall is provided with the stator core, and several profiled insulation lines are provided on the stator core
Circle winding and temperature sensor, the coil windings end and internal temperature sensor are protected using epoxy resin encapsulated.
Blower is installed on the outside of the rear end cap, which is exchange forward-type centrifugal fan.
Including hall position sensor feedback system, which includes being fixed on electric machine casing
Induction permanent magnet on hall position sensor and rotor on inner wall；The hall position sensor has with induction permanent magnet
It is radial vertical.
Good heat dissipation effect of the present invention, structure is simple, has saved motor cost, improves the output torque of servomotor, subtracts
Light weight, be able to extend servomotor uses the time.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is stator structure schematic diagram of the present invention；
Fig. 3 is rotor structure schematic diagram of the present invention；
Fig. 4 is hollow shaft structure schematic diagram of the present invention；
Fig. 5 is present invention heat dissipation wind path circulation figure；
Drawing reference numeral explanation:
1- external splines hollow shaft；2- fore bearing；3- electric machine casing；4- stator；5- rotor；6- coil windings；7- hall position passes
Sensor；8-T type fixes bracket；9- power connector；10- power, feedback cable；11- rear end cap；12- blower；13- rear bearing；
14- air inlet hole；15- axial direction retaining ring；16- incudes permanent magnet；17- epoxy bushing；18- positioning key；19- end plate；20- main motor
Permanent magnet；21- front end-plate；22- exhaust vent.
Specific embodiment
The present invention and its effect are clearly and completely described with reference to the accompanying drawing.
As shown in Figure 1, a kind of permanent magnetic brushless servomotor, mainly includes electric machine casing, stator, sleeve rotor, Hall biography
Sensor feedback system, rear end cap, blower, connector etc..As shown in Fig. 2, the electric machine casing is integrated design, including front end
Seam allowance and fixing screwed hole, front end peace are installed in cover and stator cage part, drive end bearing bracket portion outboard setting front end
Dress seam allowance and fixing screwed hole are for installing motor body.The bearing chamber of installation fore bearing is provided in the inner cavity of motor shell
Axis hole is extended through with drive end axle.The electric machine casing is provided with the cavity for accommodating coil windings.The electric machine casing inner wall setting
There is the stator core, several profiled insulation coil windings and temperature sensor, the coil are provided on the stator core
Winding overhang and internal temperature sensor are protected using epoxy resin coating encapsulating, for increasing coil windings overall mechanical strength,
The extension coil insulation protection time.
Rotor of the present invention be sleeve rotor (shown in Fig. 3) comprising rotor core, permanent-magnet material, front end-plate, after
End plate, hollow shaft；The hollow shaft (shown in Fig. 4) is stretched, fore bearing shelves, is done if being disposed with male splined shaft from driving end
Air holes, iron core shelves, positioning spline, axial retaining ring, several air inlet holes, rear bearing file location；Air inlet hole in the hollow shaft goes out
Air holes, hollow shaft cavity and motor stator and rotor between air gap be interconnected；Fore bearing is installed at the fore bearing shelves
2, which is boss, positions fore bearing 2；Rotor core is installed at the iron core shelves；Rotor core both ends difference
The front end-plate 21 and end plate 19 of positioning are installed；21 outside of front end-plate is positioned by the boss on the right side of the fore bearing shelves, described
The axial retaining ring 15 on the outside of epoxy bushing (17) that 19 outside of end plate is installed by the positioning key by positioning spline is axial to be determined
, the induction permanent magnet 16 on rotor is arranged on epoxy bushing 17；The rear bearing file location install rear bearing 13 and this after
Bearing 13 is placed in the bearing chamber of rear end cap 11.
The induction permanent magnet 16 is neodymium iron boron material, is press moulded to form one by compression-molding process and epoxy novolac compression molding material
The positioning spline position of hollow shaft is mounted on as epoxy bushing 17 and by positioning key, by axial retaining ring 15 by epoxy bushing
17 axial restraints.
Exhaust vent 22 in several hollow shafts is radial circular hole, is 4, so that logical into rotor air gap and rotor
Cooling air in air holes is directed into hollow shaft cavity；Several air inlet holes 14 are oblique 60 degree (with horizontal direction) acute angles
Inclined hole is 4, so that being directed into rotor air gap and rotor ventilation hole into the cooling air inside motor.
The hollow shaft anti-drive end is provided with 45 degree of chamferings.So that the cooling air into hollow shaft cavity is directed into
Inside motor.
There is antirust coat inside and outside the hollow shaft, the processing so that hollow shaft the inner surface and the outer surface is strengthened, whole table
Face has antirust ability.
Uniformly distributed weight loss ventilation hole is provided on the rotor iron core lamination, the front end-plate 21 and end plate 19 are identical
An equal amount of loss of weight through-hole is machined on position.The lightening hole plays the role of ventilation hole simultaneously.
The electric machine casing inner wall is provided with the stator core, and several profiled insulation lines are provided on the stator core
Circle winding and temperature sensor, the coil windings end and internal temperature sensor are protected using epoxy resin encapsulated.
Blower 12 is installed on the outside of the rear end cap 11, which is exchange forward-type centrifugal fan.
The present invention includes hall position sensor feedback system, which includes being fixed on electricity
Hall position sensor 7 in machine inner walls and the induction permanent magnet 16 on rotor；The hall position sensor 7 and induction
Permanent magnet 16 has radial direction vertical, to guarantee accurate delivery rotor real-time position signal.The hall position sensing
Device includes three, is fixed on casing inner wall by the fixed bracket 8 of T-type and is fitted closely with coil windings；The fixed bracket of the T-type
8 are provided with waist-shaped hole, and power cable, temperature monitoring sensor cable pass through waist-shaped hole；The cable of the hall position sensor
By epoxy resin encapsulated together with power cable, temperature monitoring sensor cable.
It is provided with rear bearing installation site on rear end cap and anti-drive end axis extends through axis hole, blower is installed on the outside of the rear end cap
12 and there are the mounting holes of blower connector.The blower is forward-type centrifugal fan, by cooling air by anti-drive end stream
To driving end, compression cooling air is entered inside motor by hollow shaft inner cavity, air inlet hole, by heat from exhaust vent using sky
The outflow of mandrel inner cavity, has better heat dissipation effect.12 connector of blower includes power connector, signal socket connector and wind
Machine connector.
Claims (8)
1. a kind of permanent magnetic brushless servomotor, including rotor, which is characterized in that the rotor is sleeve rotor comprising rotor iron
Core, permanent-magnet material, front end-plate, end plate, hollow shaft；The hollow shaft is disposed with male splined shaft from driving end and stretches, is preceding
Bearing guard, several exhaust vents, iron core shelves, positioning spline, axial retaining ring, several air inlet holes, rear bearing file location；The hollow shaft
On air inlet hole, exhaust vent, hollow shaft cavity and motor stator and rotor between air gap be interconnected；The fore bearing shelves
Place's installation fore bearing (2), which is boss, is positioned fore bearing (2)；Rotor is installed at the rotor core shelves
The front end-plate (21) and end plate (19) of positioning are installed in iron core, rotor core both ends respectively；By described on the outside of the front end-plate (21)
Boss positioning on the right side of fore bearing shelves, the epoxy bushing that end plate (19) outside is installed by the positioning key at positioning spline
(17) axial retaining ring (15) axially position on the outside of, the induction permanent magnet (16) on rotor are arranged on epoxy bushing (17)；Institute
It states rear bearing file location installation rear bearing (13) and the rear bearing (13) is placed on rear end cap (11).
2. a kind of permanent magnetic brushless servomotor according to claim 1, it is characterised in that: several exhaust vents (22) are
Radial circular hole；Several air inlet holes (14) are the inclined hole of oblique 60 degree of acute angles.
3. a kind of permanent magnetic brushless servomotor according to claim 1, it is characterised in that: the hollow shaft anti-drive end is set
It is equipped with 45 degree of chamferings.
4. a kind of permanent magnetic brushless servomotor according to claim 1, it is characterised in that: have antirust inside and outside the hollow shaft
Coating.The processing so that hollow shaft the inner surface and the outer surface is strengthened, whole surface have antirust ability.
5. a kind of permanent magnetic brushless servomotor according to claim 1, it is characterised in that: on the rotor iron core lamination
It is furnished with weight loss ventilation hole, the front end-plate (21) and end plate (19) are machined with weight loss ventilation hole in same position.
6. a kind of permanent magnetic brushless servomotor according to claim 1, it is characterised in that: the electric machine casing inner wall setting
There is the stator core, several profiled insulation coil windings and temperature sensor, the coil are provided on the stator core
Winding overhang and internal temperature sensor are protected using epoxy resin encapsulated.
7. a kind of permanent magnetic brushless servomotor according to claim 1, it is characterised in that: peace on the outside of the rear end cap (11)
Equipped with blower (12), which is exchange forward-type centrifugal fan.
8. any permanent magnetic brushless servomotor described in -7 according to claim 1, it is characterised in that: sensed including hall position
Device feedback system, the hall position sensor feedback system include the hall position sensor being fixed on electric machine casing inner wall
(7) the induction permanent magnet (16) and on rotor；The hall position sensor (7) and induction permanent magnet (16) have radial hang down
Directly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751731.2A CN110429728A (en) | 2019-08-15 | 2019-08-15 | A kind of permanent magnetic brushless servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751731.2A CN110429728A (en) | 2019-08-15 | 2019-08-15 | A kind of permanent magnetic brushless servomotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110429728A true CN110429728A (en) | 2019-11-08 |
Family
ID=68414824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910751731.2A Pending CN110429728A (en) | 2019-08-15 | 2019-08-15 | A kind of permanent magnetic brushless servomotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110429728A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099079A (en) * | 1993-03-12 | 1995-02-22 | 弗奥伦佐·比安卡拉尼及其合伙人联合总公司 | Handle fabric to be used for the machine of fulling and other operation with the combing form |
| CN2428911Y (en) * | 2000-06-12 | 2001-05-02 | 朱向东 | Long-service-life multi-model type permanent magnet brushless servo electric motor |
| US20050258701A1 (en) * | 2001-07-13 | 2005-11-24 | Voith Paper Patent Gmbh | Construction and method of an electric motor drive |
| JP2006230155A (en) * | 2005-02-21 | 2006-08-31 | Toshiba Corp | Dynamo-electric machine |
| CN104158347A (en) * | 2014-08-21 | 2014-11-19 | 江西工埠机械有限责任公司 | Shaft and stator double cooling motor |
| CN210327187U (en) * | 2019-08-15 | 2020-04-14 | 兰州电机股份有限公司 | Permanent magnet brushless servo motor |
-
2019
- 2019-08-15 CN CN201910751731.2A patent/CN110429728A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099079A (en) * | 1993-03-12 | 1995-02-22 | 弗奥伦佐·比安卡拉尼及其合伙人联合总公司 | Handle fabric to be used for the machine of fulling and other operation with the combing form |
| CN2428911Y (en) * | 2000-06-12 | 2001-05-02 | 朱向东 | Long-service-life multi-model type permanent magnet brushless servo electric motor |
| US20050258701A1 (en) * | 2001-07-13 | 2005-11-24 | Voith Paper Patent Gmbh | Construction and method of an electric motor drive |
| JP2006230155A (en) * | 2005-02-21 | 2006-08-31 | Toshiba Corp | Dynamo-electric machine |
| CN104158347A (en) * | 2014-08-21 | 2014-11-19 | 江西工埠机械有限责任公司 | Shaft and stator double cooling motor |
| CN210327187U (en) * | 2019-08-15 | 2020-04-14 | 兰州电机股份有限公司 | Permanent magnet brushless servo motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101645629B (en) | Self-ventilation cooling device of external rotor permanent magnet synchronous machine | |
| US6663362B1 (en) | Fluid pump with a motor housing and method for producing a motor housing | |
| CN101171736B (en) | Electric machine | |
| KR101714477B1 (en) | OUTER ROTOR MOTOR WITH A STREAMLINED Blade for POWER OF of Unmanned Aircraft Robot | |
| CN108023441B (en) | Novel motor wind path structure | |
| CN106411047A (en) | Hub motor driving system with air cooling mode | |
| CN210327187U (en) | Permanent magnet brushless servo motor | |
| CN113193688A (en) | IP55 industrial ceiling fan motor with external cooling structure | |
| CN105827067B (en) | A kind of inner cavity aeration radiation system device of nonmagnetic matrix Non-iron core motor | |
| CN110429728A (en) | A kind of permanent magnetic brushless servomotor | |
| CN207459948U (en) | A kind of axial magnetic field disk motor | |
| CN111600407A (en) | Permanent magnet motor rotor | |
| CN101651375B (en) | Brushless ironless direct-current energy-saving motor of permanent magnetic module type | |
| CN115912728A (en) | High-efficiency synchronous motor | |
| CN115189506A (en) | Self-circulation cooling magnetic suspension high-speed motor with intercooler | |
| CN101651377B (en) | Brushless ironless energy-saving direct-current motor of permanent-magnetic outer rotor module type | |
| CN213243737U (en) | External machine tool bearingless permanent magnet spindle | |
| CN112688495B (en) | Permanent magnet synchronous motor and controller integrated assembly for negative pressure fan | |
| CN212435450U (en) | Outer rotor permanent magnet servo motor with compact axial size | |
| CN209434976U (en) | A kind of novel double outer cold external rotor permanent magnet synchronous machines | |
| CN210469038U (en) | Novel air-cooled permanent magnet synchronous motor | |
| CN103381758A (en) | Eddy current retarder | |
| CN208393342U (en) | A kind of electromechanical ACBS automobile retarder | |
| CN202059304U (en) | Scooter direct current brushless motor with large length-diameter ratio | |
| CN106208584A (en) | A kind of totally-enclosed self-ventilation magneto |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |