CN104167864A - Rotation variable-frequency motor - Google Patents
Rotation variable-frequency motor Download PDFInfo
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- CN104167864A CN104167864A CN201410436378.6A CN201410436378A CN104167864A CN 104167864 A CN104167864 A CN 104167864A CN 201410436378 A CN201410436378 A CN 201410436378A CN 104167864 A CN104167864 A CN 104167864A
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Abstract
The invention provides a rotation variable-frequency motor. The rotation variable-frequency motor comprises a motor base, a first end cover, a second end cover, a motor shaft, a rotor, a start braking performance adjusting device and a heat dissipating device, wherein the motor base is provided with an installation cavity, the first end cover is arranged on the first side of the motor base, the first end cover is provided with a first air outlet, the second end cover is arranged on the second side of the motor base, a first air inlet is formed in the second end cover, the motor shaft extends from the first side of the motor base to the second side of the motor base, the rotor is arranged on the motor shaft in a sleeved mode, a flow guiding channel axially extending along the motor shaft is arranged on the rotor, the start braking performance adjusting device is arranged in the installation cavity and is located on one side, close to the first end cover, of the rotor, a gap exists between the start braking performance adjusting device and the inner wall surface of the installation cavity, and the heat dissipating device is arranged on the motor shaft and is located between the start braking performance adjusting device and the rotor. A heat dissipating channel is formed by the first air outlet, the first air inlet, the gap and the flow guiding channel. By the adoption of the rotation variable-frequency motor, the heat dissipating effect is good, and the reliability and the stability of operation of the rotation motor can be effectively guaranteed.
Description
Technical field
The present invention relates to technical field of motors, in particular to one revolution variable-frequency motor.
Background technology
Jib for tower crane is long, inertia is large, when revolution operation, starting and braking, gearshift all easily produce larger impact to tower body, revolution Main Load is moment of wind resistance (frictional resistance moment is generally less with respect to wind load), wind load changes in turning course, have with the wind, situation against the wind, be to adapt to Turning course, tower machine slew gear drives at present following several mode: 1, wound rotor threephase asynchronous machine adds fluid coupling and drives; 2, mouse dragon motor adds electromagnetic coupling; 3, torque motor drives by series reactor variable voltage control; 4, torque motor adds the speed governing of RCV controller; 5, YTW series ordinary three-phase synchronous frequency control driving etc.Some modes all have some shortcomings above: 1, motor adds fluid coupling mode and trackslips greatlyr, and tower machine is in place inaccurate, with the wind time, can not produce braking moment, can only " crawl reverse-starting braking operation " could be in place, operation is difficult for; 2, shaft coupling structure complexity, manufacture process requirement is high, maintenance difficulty, price; 3, motor series reactor control or add the control of RCV controller, though reliability is higher, system is heavier, and torque motor price is by expensive; 4, common YTW series mouse dragon formula threephase asynchronous machine, mechanical property is harder, and velocity interval that can stable operation is little, and service area torque changes greatly, is difficult to adaptation and turns round the operating mode of load change.
Adopt at present the YTW serial motors structure composition of variable frequency control to see described in Fig. 1, mainly formed by front end housing 1, bearing 2, bearing 8, interior oil cap 7, rebound 10, rear end cap 9, stator core 4, stator winding 3, rotor 6, eddy-current brake (armature 14, magnet exciting coil 12, the pawl utmost point 11), fan 15, fan housing 16 etc., eddy-current brake, fan 15 are placed in motor afterbody, the mechanical property of this variable-frequency motor as shown in Figure 2, characteristic curve is harder, velocity interval that can stable operation is less, service area torque changes greatly, and radiating effect is poor.
Summary of the invention
The present invention aims to provide a kind of revolution variable-frequency motor, to solve the problem of motor radiating weak effect of the prior art.
To achieve these goals, the invention provides a kind of revolution variable-frequency motor, comprising: support, support has installation cavity; The first end cap, the first end cap is arranged on the first side of support, and first end covers and is provided with the first air outlet; The second end cap, the second end cap is arranged on the second side of support, and the first air inlet is set on the second end cap; Motor shaft, motor shaft extends to the second side of support from the first side of support; Rotor, rotor is set on motor shaft, is provided with the axially extended flow-guiding channel along motor shaft on rotor; Starting braking adjusting device, starting braking adjusting device is arranged in installation cavity, and is positioned at the side near the first end cap of rotor, and has gap between starting braking adjusting device and the internal face of installation cavity; Heat abstractor, heat abstractor is arranged on motor shaft and between starting braking adjusting device and rotor; Wherein, the first air outlet, the first air inlet, gap and flow-guiding channel form heat dissipation channel.
Further, the resistivity of rotor is in the scope of 6 × 10-8 Ω m to 12 × 10-8 Ω m.
Further, starting braking adjusting device comprises: armature, and armature fixed cover is located on motor shaft, and the side near the first end cap of armature is provided with annular slot to make way; The pawl utmost point, the pawl utmost point is set on motor shaft and is positioned at annular slot to make way; Eddy current magnet exciting coil, eddy current magnet exciting coil be set on motor shaft and be embedded pawl extremely in, and eddy current magnet exciting coil and pawl are extremely all fixed on first end and cover.
Further, be provided with louvre on armature, louvre extends to the side near the pawl utmost point from the side near the second end cap of armature.
Further, heat abstractor is the fan being fixedly installed on motor shaft, and the air outlet of fan is towards starting braking adjusting device.
Further, a side of the close rotor of armature abuts on heat abstractor, and the side away from rotor of armature is provided with nut and locked spacer.
Further, revolution variable-frequency motor also comprises bearing group, and bearing group comprises: clutch shaft bearing, and first end covers and is provided with the first mounting groove, and clutch shaft bearing is arranged in the first mounting groove; The second bearing, is provided with the second mounting groove on the second end cap, the second bearing is arranged in the second mounting groove; The 3rd bearing, a side of the close motor shaft of the pawl utmost point is provided with the 3rd mounting groove, and the 3rd bearing is arranged in the 3rd mounting groove.
Further, revolution variable-frequency motor also comprises protective cover, and protective cover is fixedly installed on the second side of support, and buckle closure is on the second end cap, and the second air inlet is set on protective cover.
Apply technical scheme of the present invention, because covering, the first end of revolution variable-frequency motor is provided with the first air outlet, on the second end cap, be provided with the first air inlet, on rotor, be provided with the axially extended flow-guiding channel along motor shaft, and there is gap between starting braking adjusting device and the internal face of installation cavity, now, the first air outlet, the first air inlet, gap and flow-guiding channel have formed from first end to the second end of revolution variable-frequency motor, be convenient to cross-ventilated heat dissipation channel, when revolution variable-frequency motor of the present invention is in the course of the work when distribute heat, due to the convection current of air, the heat of the generation of revolution variable-frequency motor can promptly flow to from heat dissipation channel the outside of installation cavity, good heat dissipation effect, can effectively ensure turning motor reliability of operation and stability.
Brief description of the drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the cutaway view of existing YTW serial motors;
Fig. 2 shows the mechanical property figure of existing YTW serial motors;
Fig. 3 shows the cutaway view of revolution variable-frequency motor of the present invention; And
Fig. 4 shows the mechanical property figure of revolution variable-frequency motor of the present invention.
Description of reference numerals: 10, support; 11, installation cavity; 20, the first end cap; 21, the first air outlet; 22, the first mounting groove; 30, the second end cap; 31, the first air inlet; 32, the second mounting groove; 40, motor shaft; 50, rotor; 60, stator; 70, starting braking adjusting device; 71, armature; 711, annular slot to make way; 712, louvre; 72, the pawl utmost point; 721, the 3rd mounting groove; 73, eddy current magnet exciting coil; 80, heat abstractor; 90, nut; 100, locked spacer; 111, clutch shaft bearing; 112, the second bearing; 113, the 3rd bearing; 120, protective cover; 130, terminal box.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Shown in Fig. 3 and Fig. 4, Fig. 3 and Fig. 4 show respectively cutaway view and the mechanical property figure of revolution variable-frequency motor of the present invention.According to embodiments of the invention, provide a kind of revolution variable-frequency motor.This revolution variable-frequency motor comprises support 10, the first end cap 20, the second end cap 30, motor shaft 40, rotor 50, stator 60, starting braking adjusting device 70, heat abstractor 80 and terminal box 130.Wherein, support 10 has mounted motor axle 40, rotor 50, the isostructural installation cavity 11 of stator 60; The first end cap 20 is arranged on the first side of support 10, is provided with the first air outlet 21 on this first end cap 20, is convenient to make dissipation of heat in installation cavity 11 outside to support 10; The second end cap 30 is arranged on the second side of support 10, the first air inlet 31 is set on this second end cap 30, be convenient to make the air of support 10 outsides to enter in installation cavity 11, structure to installation cavity 11 inside is carried out cooling processing, and protects by the each mechanism that act as installation cavity 11 inside of the first end cap 20 and the second end cap 30; Motor shaft 40 extends to the second side of support 10 from the first side of support 10; Rotor 50 is set on motor shaft 40, on this rotor 50, be provided with the axially extended flow-guiding channel (not shown) along motor shaft 40, when machine operation, the first air outlet 21, the first air inlet 31 and flow-guiding channel form heat dissipation channel, be convenient to the outside to turning motor by the dissipation of heat of revolution variable-frequency motor inside, ensure stability and reliability in revolution variable-frequency motor running; Stator 60 and winding thereof are set in the periphery of rotor 50; Starting braking adjusting device 70 is arranged in installation cavity 11, and is positioned at the side near the first end cap 20 of rotor 50, between this starting braking adjusting device and the internal face of installation cavity 11, has gap, is convenient to flowing of air, improves rate of heat dispation and effect; Heat abstractor 80 is arranged on motor shaft 40 and between starting braking adjusting device 70 and rotor 50, can fully dispel the heat to revolution variable-frequency motor; Terminal box 130 is fixedly installed on support 10, is convenient to the energising of revolution variable-frequency motor.
Can know according to the said structure of revolution variable-frequency motor, on the first end cap 20 due to revolution variable-frequency motor, be provided with the first air outlet 21, on the second end cap 30, be provided with the first air inlet 31, on rotor 50, be provided with the axially extended flow-guiding channel along motor shaft 40, and there is gap between starting braking adjusting device 70 and the internal face of installation cavity 11, now, the first air outlet 21, the first air inlet 31, gap and flow-guiding channel have formed from first end to the second end of revolution variable-frequency motor, be convenient to cross-ventilated heat dissipation channel, when the revolution variable-frequency motor of the present embodiment is in the course of the work when distribute heat, due to the convection current of air, the heat of the generation of revolution variable-frequency motor can promptly flow to from heat dissipation channel the outside of installation cavity 11, good heat dissipation effect, can effectively ensure turning motor reliability of operation and stability.
The rotor 50 of the present embodiment adopts resistivity 6 × 10
-8Ω m to 12 × 10
-8the rotor that electric conducting material in the scope of Ω m is made, such as high resistance aluminium, aluminium alloy and brass etc., be set to resistivity 6 × 10 by rotor 50
-8Ω m to 12 × 10
-8rotor in the scope of Ω m, can obtain compared with greater trochanter equivalent resistance, meanwhile, owing to offering axial diversion passage on rotor 50, the impact of the air gap harmonic wave that can add greater trochanter 50 on electric motor starting torque.For variable-frequency motor in the past, the characteristic deliquescing of the revolution variable-frequency motor of the present embodiment, shown in Figure 4, when work, the revolution variable-frequency motor linearity of the present embodiment is good, and rotating speed hour torque is large, when torque is large, rotating speed is little, can adapt to the situation that tower machine wind load changes, acceleration and deceleration are steady, impact little.Revolution variable-frequency motor can approach as much as possible linear under each frequency, torque maximum rate of change within the scope of 1/4 to 3/4 synchronous speed is less than 10%, adjustable range is wide, breakdown torque occurs near locked-rotor torque, wide range that can stable operation, when improving tower machine wind resistance, reduce frequency inverter capacity requirement, saved electric-control system cost.
Because the revolution variable-frequency electric function of the present embodiment obtains larger locked-rotor torque with less locked rotor current, starting torque is large, applied voltage one timing, rotating speed is approximated to linear reduction with the increase of load torque, mechanical property is soft, can approach synchronous speed until stall can stable operation, adapt to especially confidential heavy-duty low-speed, the underloading operating mode at a high speed asked of tower.
In order to improve the starting braking ability of revolution variable-frequency motor of the present embodiment, the revolution variable-frequency motor of the present embodiment also comprises starting braking adjusting device 70, this starting braking adjusting device 70 is arranged in installation cavity 11, and be positioned at rotor 50 near a side of the first end cap 20, starting and the braking ability of revolution variable-frequency motor are regulated.
Specifically, starting braking adjusting device 70 comprises armature 71, the pawl utmost point 72 and eddy current magnet exciting coil 73.Wherein, armature 71 fixed covers are located on motor shaft 40, and the side near the first end cap 20 of armature 71 is provided with annular slot to make way 711; The pawl utmost point 72 is set on motor shaft 40 and is positioned at annular slot to make way 711, and compact conformation is convenient to install and carry; Eddy current magnet exciting coil 73 is set on motor shaft 40 and is embedded in the pawl utmost point 72, further reduces to turn round the topic volume of variable-frequency motor, and eddy current magnet exciting coil 73 and the pawl utmost point 72 are all fixedly installed on the first end cap 20.In the process of the start of revolution variable-frequency motor and shutdown, the effect in the magnetic field producing by eddy current magnet exciting coil 73, the pawl utmost point 72 and armature 71, makes motor shaft 40 open reposefully and to shut down.In the present embodiment, eddy current magnet exciting coil 73 is embedded in the pawl utmost point 72, can effectively reduce the volume of revolution variable-frequency motor, be convenient to install and carry, install back in the process that turns variable-frequency motor, the pawl utmost point 72 is set to two halfbodies, and on two halfbodies, installation groove is set respectively, and then eddy current magnet exciting coil 73 is embedded in the installation groove of two halfbodies, finally utilize bolt assembly that two halfbodies are fixing, simple in structure, be convenient to realize.In order to ensure that each structure of starting braking adjusting device 70 can produce stable magnetic field, the eddy current magnet exciting coil 73 in this enforcement and the pawl utmost point 72 are bolted on the first end cap 20.
Preferably, on armature 71, be provided with louvre 712, this louvre 712 extends to the side near the pawl utmost point 72 from the side near the second end cap 30 of armature 71, is convenient to the circulation of air, whole revolution variable-frequency motor is carried out to sufficient radiating treatment, improve the performance of motor.
The heat abstractor 80 of the present embodiment is arranged between starting braking adjusting device 70 and rotor 50, when work, can fully dispel the heat to the structure in installation cavity 11.More preferably, heat abstractor 80 is for being fixedly installed on the fan on motor shaft 40, and the air outlet of this fan, near starting braking adjusting device 70, can carry out radiating treatment to starting braking adjusting device 70 well, and simple in structure, is convenient to realize.
In the present embodiment, for armature 71 is stably fixed on motor shaft 40, install in the process of armature 71, one side of the close rotor 50 of armature 71 is abutted on heat abstractor 80, and in the side away from rotor 50 of armature 71, nut 90 is set, effect by nut 90 and fan is stably fixed on armature 71 on motor shaft 40, ensures the stability in revolution variable-frequency motor running, reduces the noise of revolution variable-frequency motor.Preferably, between nut 90 and armature 71, be also provided with locked spacer 100, be convenient to armature 71 to be stably fixed on motor shaft 40.
Refer again to shown in Fig. 3, for motor shaft 40 is stably arranged on support 10, the revolution variable-frequency motor of the present embodiment also comprises bearing group, and this bearing group comprises clutch shaft bearing 111, the second bearing 112 and the 3rd bearing 113.Wherein, be provided with the first mounting groove 22 on the first end cap 20, clutch shaft bearing 111 is arranged in the first mounting groove 22; On the second end cap 30, being provided with the second mounting groove 32, the second bearings 112 is arranged in the second mounting groove 32; One side of the close motor shaft 40 of the pawl utmost point 72 is provided with the 3rd mounting groove 721, the three bearings 113 and is arranged in the 3rd mounting groove 721.By clutch shaft bearing 111, the second bearing 112 and the 3rd bearing 113, motor shaft 40 is fixed on support 10, can improves the rigidity of whole revolution variable-frequency motor, improve the useful life of revolution variable-frequency motor.
In the present embodiment, revolution variable-frequency motor also comprises protective cover 120, and this protective cover 120 is fixedly installed on the second side of support 10, and buckle closure is on the second end cap 30, and the second air inlet (not shown) is set on protective cover 120, is convenient to extraneous air and enters in installation cavity 11.
When work, after cold wind is entered by the second air inlet on protective cover 120, can enter in installation cavity 11 from the first air inlet 31 of the second end cap 30, enter installation cavity 11 interior after, air-flow divides two-way, and a road enters the gap between motor stator 60 surfaces and the inwall of installation cavity 11; One tunnel enters rotor 50 flow-guiding channels, and two transportation work styles enter internal fan and flow out from the first air outlet 21 of the first end cap 20 behind the surface of starting braking adjusting device 70.
The revolution variable-frequency motor of the present embodiment is in front end starting braking adjusting device 70, this starting braking adjusting device 70 is by eddy current magnet exciting coil 73, the pawl utmost point 72, armature 71 forms, the pawl utmost point 72 is fixed on the first end cap 20, when work, the armature 71 of starting braking adjusting device 70 rotates with motor shaft 40, in the time that magnet exciting coil passes into direct current, produce magnetic field by the pawl utmost point 72, armature 71 cutting magnetic lines produce induced field and form eddy current, the magnetic field that eddy current produces and the pawl utmost point 72 magnetic field interactions form brake torque, can improve motor and play braking ability, reduce and impact, improve the fail safe of tower machine.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
1, the rotor of revolution variable-frequency motor adopts high resistivity electric conducting material (high resistivity aluminium, brass etc.) and on rotor, offers flow-guiding channel, can obtain compared with greater trochanter equivalent resistance, and add air gaps, reduce the impact of air gap harmonic wave on starting torque, obtain larger locked-rotor torque with less locked rotor current, when improving tower machine wind resistance, reduce frequency inverter capacity requirement, saved electric-control system cost.
2, mechanical property is soft, and the linearity is good, speed-regulating range width, breakdown torque occurs near locked-rotor torque, and wide range that can stable operation can stall and can realize real heavy-duty low-speed, underloading high speed tower machine operating mode, improve a braking ability simultaneously, improved revolution stationarity.
3, in structure, adopt aeration structure in drum type brake, on rotor, convince circulation road by patient analysis, built-in fans, cold wind, by motor afterbody air intake, divides two-way, and a road enters the gap between motor stator surface and support; One tunnel enters rotor ventilation road, and two transportation work styles enter internal fan and flow out to the first end cap through starting braking adjusting device surface, perfect heat-dissipating;
4, motor adopts from fanning wind cooling mode, removes forced air cooling blower fan, has reduced fault point.
5, the more existing torque motor of structure is simple, and cost declines greatly, and cost performance is high.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a revolution variable-frequency motor, is characterized in that, comprising:
Support (10), described support (10) has installation cavity (11);
The first end cap (20), described the first end cap (20) is arranged on the first side of described support (10), is provided with the first air outlet (21) on described the first end cap (20);
The second end cap (30), described the second end cap (30) is arranged on the second side of described support (10), and the first air inlet (31) is set on described the second end cap (30);
Motor shaft (40), described motor shaft (40) extends to the second side of described support (10) from the first side of described support (10);
Rotor (50), it is upper that described rotor (50) is set in described motor shaft (40), is provided with along the axially extended flow-guiding channel of described motor shaft (40) on described rotor (50);
Starting braking adjusting device (70), described starting braking adjusting device (70) is arranged in described installation cavity (11), and be positioned at a side of close described first end cap (20) of described rotor (50), and there is gap between described starting braking adjusting device and the internal face of described installation cavity (11);
Heat abstractor (80), described heat abstractor (80) is arranged on described motor shaft (40) and goes up and be positioned between described starting braking adjusting device (70) and described rotor (50); Wherein,
Described the first air outlet (21), described the first air inlet (31), described gap and described flow-guiding channel form heat dissipation channel.
2. revolution variable-frequency motor according to claim 1, is characterized in that, the resistivity of described rotor (50) is 6 × 10
-8Ω m to 12 × 10
-8in the scope of Ω m.
3. revolution variable-frequency motor according to claim 1, is characterized in that, described starting braking adjusting device (70) comprising:
Armature (71), it is upper that described armature (71) fixed cover is located at described motor shaft (40), and a side of close described first end cap (20) of described armature (71) is provided with annular slot to make way (711);
The pawl utmost point (72), the described pawl utmost point (72) is set in described motor shaft (40) and goes up and be positioned at described annular slot to make way (711);
Eddy current magnet exciting coil (73), described eddy current magnet exciting coil (73) is set in described motor shaft (40) and goes up and be embedded in the described pawl utmost point (72), and described eddy current magnet exciting coil (73) and the described pawl utmost point (72) are all fixed on described the first end cap (20).
4. revolution variable-frequency motor according to claim 3, it is characterized in that, on described armature (71), be provided with louvre (712), described louvre (712) extends to the side near the described pawl utmost point (72) from a side of close described second end cap (30) of described armature (71).
5. revolution variable-frequency motor according to claim 1, it is characterized in that, described heat abstractor (80) is for being fixedly installed on the fan on described motor shaft (40), and the air outlet of fan is towards described starting braking adjusting device (70).
6. revolution variable-frequency motor according to claim 3, it is characterized in that, it is upper that one side of the close described rotor (50) of described armature (71) abuts in described heat abstractor (80), and the side away from described rotor (50) of described armature (71) is provided with nut (90) and locked spacer (100).
7. revolution variable-frequency motor according to claim 3, is characterized in that, described revolution variable-frequency motor also comprises bearing group, and described bearing group comprises:
Clutch shaft bearing (111), is provided with the first mounting groove (22) on described the first end cap (20), described clutch shaft bearing (111) is arranged in described the first mounting groove (22);
The second bearing (112), is provided with the second mounting groove (32) on described the second end cap (30), described the second bearing (112) is arranged in described the second mounting groove (32);
The 3rd bearing (113), one side of the close described motor shaft (40) of the described pawl utmost point (72) is provided with the 3rd mounting groove (721), and described the 3rd bearing (113) is arranged in described the 3rd mounting groove (721).
8. according to the revolution variable-frequency motor described in any one in claim 1 to 7, it is characterized in that, described revolution variable-frequency motor also comprises protective cover (120), described protective cover (120) is fixedly installed on the second side of described support (10), and buckle closure is upper at described the second end cap (30), and on described protective cover (120), the second air inlet is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436378.6A CN104167864A (en) | 2014-08-29 | 2014-08-29 | Rotation variable-frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436378.6A CN104167864A (en) | 2014-08-29 | 2014-08-29 | Rotation variable-frequency motor |
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| CN104167864A true CN104167864A (en) | 2014-11-26 |
Family
ID=51911561
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410436378.6A Pending CN104167864A (en) | 2014-08-29 | 2014-08-29 | Rotation variable-frequency motor |
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|---|---|
| CN (1) | CN104167864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117318376A (en) * | 2023-11-28 | 2023-12-29 | 江苏泰隆高新传动设备有限公司 | Variable frequency braking motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158592Y (en) * | 1993-04-07 | 1994-03-09 | 四川宜宾电机厂 | Three-phase asynchronous motor |
| JP2004320879A (en) * | 2003-04-15 | 2004-11-11 | Mitsuba Corp | Motor with speed reduction mechanism |
| CN203589918U (en) * | 2013-11-30 | 2014-05-07 | 永济新时速电机电器有限责任公司 | Independent three-wind path structured motor with efficient cooling and heat radiation |
-
2014
- 2014-08-29 CN CN201410436378.6A patent/CN104167864A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158592Y (en) * | 1993-04-07 | 1994-03-09 | 四川宜宾电机厂 | Three-phase asynchronous motor |
| JP2004320879A (en) * | 2003-04-15 | 2004-11-11 | Mitsuba Corp | Motor with speed reduction mechanism |
| CN203589918U (en) * | 2013-11-30 | 2014-05-07 | 永济新时速电机电器有限责任公司 | Independent three-wind path structured motor with efficient cooling and heat radiation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117318376A (en) * | 2023-11-28 | 2023-12-29 | 江苏泰隆高新传动设备有限公司 | Variable frequency braking motor |
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Application publication date: 20141126 |