CN204967573U - Two stator switched reluctance motor of water -cooled and control system thereof - Google Patents

Two stator switched reluctance motor of water -cooled and control system thereof Download PDF

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Publication number
CN204967573U
CN204967573U CN201520592115.4U CN201520592115U CN204967573U CN 204967573 U CN204967573 U CN 204967573U CN 201520592115 U CN201520592115 U CN 201520592115U CN 204967573 U CN204967573 U CN 204967573U
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CN
China
Prior art keywords
stator
water
rear end
cooled
motor
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Expired - Fee Related
Application number
CN201520592115.4U
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Chinese (zh)
Inventor
程星海
程云霞
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LIAOCHENG HUICHUANG MOTOR CO Ltd
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LIAOCHENG HUICHUANG MOTOR CO Ltd
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Priority to CN201520592115.4U priority Critical patent/CN204967573U/en
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Publication of CN204967573U publication Critical patent/CN204967573U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model belongs to the electric automobile field relates to switched reluctance motor, especially relates to a two stator switched reluctance motor of water -cooled and control system thereof. Which comprises a motor shell body, front end housing, rear end cap that motor casing set up including mutually supporting and set up the front end housing and the rear end cap between the external stator shell, be provided with the external stator on the external stator shell, be provided with the internal stator on the rear end cap, compare with prior art, the utility model discloses an advantage lies in with positive effect, the utility model discloses a two stator structure's switched reluctance motor is effectual to have solved the technical problem that traditional switched reluctance motor serviceability is low, establishes the sun gear through adding on middle rotor, make its at the inside planet gear of formation of motor, saves speed change mechanism and part on the car, better satisfies the light -weighted requirement of electric automobile.

Description

Water-cooled magnetic resistant electric motor with double stator switch and control system thereof
Technical field
The utility model belongs to electric automobile field, relates to switched reluctance machines, particularly relates to a kind of water-cooled magnetic resistant electric motor with double stator switch and control system thereof.
Background technology
The lower degradation reason of the air quality caused along with the worsening shortages of petroleum-based energy, vehicle exhaust, safety, environmental protection and the energy-conservation theme day by day becoming automobile industry, and electric automobile is owing to having low emission even zero discharge, low noise and the advantage such as energy-conservation, becoming the topical subject of current era, is the another emerging technology areas opened up for automobile industry sustainable development.The power drive system of electric automobile becomes the emphasis of its research and development as key components and parts.The basic demand of electric automobile to drive system is efficient, high torque density, high reliability, low speed high torque and high-speed cruising ability, low-vibration noise, high fault-tolerant operation ability.The electric drive system for electric vehicles be applied at present is mainly induction machine system, permanent-magnet brushless DC electric machine system, permagnetic synchronous motor system and switch magnetic-resistance motor system, different power drive systems has different performance advantages, is all the above-mentioned requirements that part meets electric automobile.
Traditional switched reluctance machines has that structure is simple, reliable and fault-tolerant ability is stronger, but this kind of motor relies on the energising of stator every winding order produce magnetic field and attract rotor core magnetic pole and produce actuating force, thus its operational efficiency, torque density are compared with other various driving motor for electric automobile, do not take advantage, and its vibration noise is the highest.Moreover in this kind of motor multi phase stator winding, break down and remain several operation that can continue mutually in a phase loop, and thus have fault-tolerant ability, but runnability reduces greatly, vibration noise is very big.
Summary of the invention
The technical problems such as the utility model is low for above-mentioned switched reluctance machines serviceability, noise is large, propose a kind of reasonable in design, structure is simple, serviceability is high and the water-cooled magnetic resistant electric motor with double stator switch that noise is low steadily, simultaneously and control system thereof.
In order to achieve the above object, the technical solution adopted in the utility model is, the utility model provides a kind of water-cooled magnetic resistant electric motor with double stator switch, comprise electric machine casing, described electric machine casing comprises the front end housing cooperatively interacting and arrange, rear end cap and the external stator shell arranged between front end housing and rear end cap, it is characterized in that, described external stator shell is provided with external stator, described rear end cap is provided with internal stator, described internal stator is fixed on the middle position of rear end cap, center roller is provided with between described internal stator and external stator, described center roller is provided with sun gear away from one end of rear end cap, the periphery of described sun gear is provided with the planetary gear be connected with a joggle with sun gear, the periphery of described planetary gear is provided with the fixing ring gear be connected with a joggle with planetary gear, described planetary gear is fixed on planetary wheel carrier, described planetary wheel carrier arranges output shaft away from one end of planetary gear, described output shaft runs through front end housing and stretches out outside electric machine casing.
As preferably, described center roller comprises left rotor disk, sub-disk of turning right and the rotor core be arranged between left rotor disk and right-hand rotation sub-disk, and described sun gear is arranged in right-hand rotation sub-disk.
As preferably, described fixing ring gear is provided with fixed cap away from the periphery of the side of planetary gear, and described fixed cap is fixedly connected with fixing ring gear.
As preferably, described fixed cap is fixedly connected with front end housing activity.
As preferably, described external stator comprises the stator core be fixed on external stator shell and the coil windings be arranged on stator core, and described stator core yoke portion circumference is evenly distributed with through hole.
As preferably, described internal stator comprises the stationary axle be fixed on rear end cap and the inner-stator iron core be fixed on stationary axle, described inner-stator iron core is provided with internal stator winding, and described inner-stator iron core yoke portion circumference is uniformly distributed water-cooled hole.
As preferably, between described through hole and water-cooled hole, pass through pipeline connection.
The utility model additionally provides a kind of system for controlling above-mentioned water-cooled magnetic resistant electric motor with double stator switch, comprises following control unit:
External stator control unit: the energising being mainly used in the coil windings controlled on stator core;
Internal stator control unit: the energising being mainly used in the internal stator winding controlled on inner-stator iron core;
Interior external stator control unit: be mainly used in the energising controlling the coil windings on stator core and the internal stator winding on inner-stator iron core.
Compared with prior art, advantage of the present utility model and good effect are,
1, the utility model effectively solves the low technical problem of Conventional switched reluctance motor serviceability by providing a kind of switched reluctance machines of double-stator structure, by adding sun gear on center roller, it is made to form planetary reduction gear at motor internal, save gear and parts on car, better meet the light-weighted requirement of electric automobile.
2, the utility model is by providing the control system of water-cooled magnetic resistant electric motor with double stator switch, motor is enable all to be in optimal operational condition in Different periods, different landforms, make motor work in efficient district all the time, solve Conventional switched reluctance motor and run the single and problem that operational efficiency is low.
3, the utility model is by being evenly distributed with through hole in stator core yoke portion circumference and inner-stator iron core yoke portion circumference is uniformly distributed water-cooled hole, motor is lowered the temperature in inside, effectively solve Conventional switched reluctance motor operating temperature high-technology problem, and by water-cooled, power of motor density is greatly improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The cutaway view of the water-cooled magnetic resistant electric motor with double stator switch that Fig. 1 provides for embodiment 1;
The cutaway view of the center roller that Fig. 2 provides for embodiment 1;
The partial sectional view of the water-cooled magnetic resistant electric motor with double stator switch that Fig. 3 provides for embodiment 1;
The partial structurtes schematic diagram of the water-cooled magnetic resistant electric motor with double stator switch that Fig. 4 provides for embodiment 1;
The outer stator structure schematic diagram that Fig. 5 provides for embodiment 1;
The internal stator structural representation that Fig. 6 provides for embodiment 1;
The flow chart of the control system of the water-cooled magnetic resistant electric motor with double stator switch that Fig. 7 provides for embodiment 2;
The circuit diagram of the control system of the water-cooled magnetic resistant electric motor with double stator switch that Fig. 8 provides for embodiment 2;
Above in each figure, 1, rear end cap; 2, front end housing; 3, external stator shell; 4, external stator; 41, stator core; 42, coil windings; 43, through hole; 5, internal stator; 51, stationary axle; 52, inner-stator iron core; 53, internal stator winding; 54, water-cooled hole; 6, center roller; 61, left rotor disk; 62, right-hand rotation sub-disk; 63, rotor core; 64, armature spindle; 7, sun gear; 8, planetary gear; 9, planetary wheel carrier; 91, output shaft; 10, fixing ring gear; 11, bolt; 12, fixed cap; 13, set bolt; 14, cover plate; 15, sealing ring.
Embodiment
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with drawings and Examples, the utility model is described further.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the utility model, but, the utility model can also adopt and be different from other modes described here and implement, and therefore, the utility model is not limited to the restriction of the specific embodiment of prospectus below.
Embodiment 1, as shown in Figure 1, Figure 2, Figure 3, Figure 4, the present embodiment provides a kind of water-cooled magnetic resistant electric motor with double stator switch, comprise electric machine casing, in the present embodiment, front end housing 1, rear end cap 2 and the external stator shell 3 arranged between front end housing 1 and rear end cap 2 that electric machine casing is arranged by cooperatively interacting form, and form electric machine casing, form motor cavity between three by bolt 11 is fixing.Outside stator case 3 is provided with external stator 4, rear end cap 2 is provided with internal stator 5, internal stator 5 is fixed on the middle position of rear end cap 2, external stator 4 and internal stator 5 are all in the inside of motor cavity, certain gap is there is between internal stator 4 and external stator, center roller 6 is provided with in gap between internal stator 4 and external stator 5, (sun gear and center roller can be two parts at center roller 6, one end of rear end cap 2 to be provided with sun gear 7, also can be a part for center roller, in the present embodiment, sun gear and center roller are integrated parts, when sun gear and center roller are two parts, guarantee stability between the two, overall mode is preferably adopted to fix), the planetary gear 8 be connected with a joggle with sun gear 7 is provided with in the periphery of sun gear 7, the periphery of planetary gear 8 is then provided with the fixing ring gear 10 be connected with a joggle with planetary gear 8, planetary gear 8 is fixed on planetary wheel carrier 9, at planetary wheel carrier 9, output shaft 91 (line shaft of output shaft and whole motor) is set away from one end of planetary gear 8, output shaft 91 runs through front end housing 1 and stretches out outside electric machine casing.
By the design of above-mentioned bimorph transducer, effectively solve the problem of Conventional switched reluctance motor serviceability deficiency, by adding the parts such as sun gear, planetary gear on center roller, its inside at motor is made to form planetary differential, save gear and parts on car, better meet the light-weighted requirement of electric automobile.
Sun gear 7 is conveniently set, in the present embodiment, center roller 6 comprises left rotor disk 61, right-hand rotation sub-disk 62 and be arranged on the rotor core 63 of left rotor disk 61 and right-hand rotation sub-disk 62, rotor core 63 is in the space between internal stator 5 and external stator 4, interior, when external stator energising, rotor core 63 rotates thus drives a left side, right-hand rotation sub-disk rotor, in the present embodiment, right-hand rotation sub-disk 62 comprises the connecting portion that is connected with rotor core 63 and the armature spindle 64 for arranging sun gear 7, in the present embodiment, armature spindle 64 does tooth, form sun gear 7.
In order to make the operational effect of motor better stable, and reduce motor in running, the degree of noise, in the present embodiment, sun gear 7 periphery is provided with 4 planetary gears 8, 4 planetary gears 8 are arranged on the surrounding of sun gear 7, in sun gear 7 is wrapped in, 4 planetary gears 8 determine the position between it relatively by planetary wheel carrier 9, like this when sun gear 7 rotates, thus drive the rotation of planetary gear 8, and then planetary wheel carrier 9 is rotated, sun gear 7, planetary gear 8 and fixing ring gear 10 can be flat tooth also can be helical teeth, sun gear 7 in the present embodiment, planetary gear 8 and fixing ring gear 10 are helical gear, helical gear engagement is good to select helical gear benefit to be, stable drive, noise is little, registration is large simultaneously, reduce the load of often pair of gear, improve the bearing capacity of gear, therefore in the present embodiment, sun gear, planetary gear and fixing ring gear all select helical gear.
Distinguish to make the parts such as parts and center roller such as sun gear, in the present embodiment, at fixing ring gear 10, the periphery of the side of planetary gear 8 is provided with fixed cap 12, fixed cap 12 is fixedly connected with fixing ring gear 10, fixed cap 12 is fixedly connected with front end housing 1 activity by set bolt 13, by coordinating of fixed cap 12 and front end housing 1, then define again a new chamber in the inside of motor cavity, in being wrapped in by the parts such as sun gear 7, planetary gear 8.
Consider that may need to add some between sun gear 7 and planetary gear 8 lubricates wet goods, external stator 4, internal stator 5 and center roller 6 is had influence in order to prevent this kind of oil plant, in the present embodiment, sealing ring 15 is provided with between fixed cap 12 and sun gear 7, planetary gear 8, cover plate 14 is provided with between fixed cap 12 and sealing ring 15, sealing ring 15 is fixed by cover plate 14 by fixed cap 12, by the setting of sealing ring 15, by the cavity seal that fixed cap 12 and front end housing 1 are formed, effectively itself and inside/outside stator are isolated.
Consider that double-stator structure is while raising operational effect, also can produce a large amount of heats simultaneously, the long hot operation of motor then can reduce the useful life of motor, as shown in Figure 5, Figure 6, in the present embodiment, external stator 4 comprises the stator core 41 be fixed on external stator shell 3 and the coil windings 42 be arranged on stator core 41, and stator core 41 yoke portion circumference is evenly distributed with through hole 43.Internal stator 5 comprises the stationary axle 51 be fixed on rear end cap 2 and the inner-stator iron core 52 be fixed on stationary axle 51, inner-stator iron core 52 is provided with internal stator winding 53, inner-stator iron core 52 yoke portion circumference is uniformly distributed water-cooled hole 54, passes through pipeline connection between through hole 43 and water-cooled hole 54.By arranging through hole 43 on stator core 41, inner-stator iron core 52 arranges water-cooled hole 54, by the connection of through hole 43 with water-cooled hole 54, preformed hole (not marking in figure) is set on the rear end cap 2 of motor simultaneously, make the cooling fluid (also can be water) that circulates between stator core 41 and inner-stator iron core 52, reach the object to electric motor temperature reduction.
During concrete installation, first stator core 41 is press fit on external stator shell 3, stator winding 42 is embedded in the groove of stator core 41 on request (winding mode is common winding mode, therefore in the present embodiment, do not add detailed description), cooling water pipe (i.e. hereinbefore described pipeline) to be penetrated in stator core 41 axially extending bore 43 with the form of connecting and two ends and stator outlet six termination are drawn.
External stator 4 wire outlet end and cooling water pipe termination (outlet) are drawn by rear end cap 2.The wire outlet end of internal stator 5 and cooling water pipe termination (import) draw (stationary axle is hollow structure) by the center sky of stationary axle.The mode of communicating of the cooling water pipe of inside/outside stator can be that to connect also can be in parallel, and linked together by a water end (W.E.) head of external stator 4 one water end (W.E.) heads and internal stator, inside and outside like this stator adopts water route of connecting to cool.Be connected between two by threeway by external stator two water end (W.E.) heads and internal stator two water end (W.E.) heads, inside and outside like this stator adopts water route in parallel to connect.
During concrete use, during series connection, cooling fluid will flow from internal stator 5 to external stator 4, due to whole water-cooled magnetic resistant electric motor with double stator switch in the course of the work, higher and the not easy heat radiation of the temperature of internal stator 5, therefore cooling fluid is wanted preferably flow from internal stator 5 to external stator 4.Water-cooling structure carries out parallel connection, and that internal stator water pipe can be designed is thicker than external stator water pipe, inside and outside stator can be made so all to play larger efficiency, and when cold weather, external stator without water-cooled, only can cool, so more economically to internal stator.
Embodiment 2, the present embodiment provides above-described embodiment 1 to provide a kind of control system of water-cooled magnetic resistant electric motor with double stator switch, and as shown in Figure 7, this system mainly comprises following control unit:
External stator control unit: the energising being mainly used in the coil windings controlled on stator core;
Internal stator control unit: the energising being mainly used in the internal stator winding controlled on inner-stator iron core;
Interior external stator control unit: be mainly used in the energising controlling the coil windings on stator core and the internal stator winding on inner-stator iron core.
In the present embodiment, specifically provide a kind of control circuit, as shown in Figure 8, three-line is drawn at power supply place, wherein circuit 1, circuit 2 is connected with the power converter controlling external stator, circuit 2 is connected with the power converter controlling internal stator with circuit 3, circuit 1 is provided with K switch 3, circuit 2 is provided with K switch 1, circuit 3 is provided with K switch 5, circuit 1, circuit 2, connected by circuit 4 between circuit 3, circuit 4 between circuit 1 and circuit 2 is provided with K switch 2, circuit 4 between circuit 2 and circuit 3 is provided with K switch 5, like this when specific works, K1, K3, K5 closes, K2, K4 opens, then constitute interior external stator control unit, voltage is applied on coil windings and internal stator winding by power supply simultaneously, inside/outside stator is worked simultaneously, at this time motor has low speed high torque fan-out capability, starting and the low speed hill climbing demands of electric automobile can be met, K2, K5 conjunction, K1, K3, K4 open, and at this moment, then constitute external stator control unit, all power voltage is applied in coil windings, and be now equivalent to only have external stator work, motor is in high speed running status, and the high speed that can meet electric automobile travels, K3, K4 conjunction, K1, K2, K5 open, and at this moment, then form internal stator control unit, all power voltage is applied on internal stator winding, and be now equivalent to only have internal stator to run, motor is in high speed running status, and the high speed that can meet electric automobile travels.K1, K3 conjunction, K2, K4, K5 open, portion voltage is applied in inner stator coil (internal stator winding), (rotor is in stator peripheral to be now equivalent to only have outer rotor switched reluctance motor to run, therefore be called outer rotor switched reluctance motor), motor is in high-speed cruising state, can meet running at high speed of electric automobile; ; K1, K5 conjunction, K2, K3, K4 open, portion voltage is applied on external stator coil (coil windings), (rotor is in inside stator to be now equivalent to only have internal rotor switched reluctance machines, therefore be called internal rotor switched reluctance machines) run, motor is in high-speed cruising state, can meet running at high speed of electric automobile.Motor extension speed adjustable range and torque range can be made like this, and regardless of under what road conditions, all by alteration switch, motor be run and be in efficient district all the time.
By the setting of foregoing circuit, achieve internally/external stator control separately and jointly control, and can make that supply voltage is all or part of to be applied in the coil of internal stator or external stator, operation under making whole motor meet different road conditions, can under each road conditions, motor all can be made to be in optimum efficiency running status all the time, thus to improve the comprehensive operation efficiency of motor, effectively can improve the continual mileage of electric automobile.
Certainly, also can adopt a power converter, three groups of Switch Controller coil windings and internal stator winding carry out switching electricity.Now coil windings, internal stator winding can be cascaded by switch and power, and also can power by external stator separately.Adopt a power converter to apply all power voltage, the inner and outer Rotator switched reluctance machines of composition magnetic resistant electric motor with double stator switch is worked simultaneously, there is low speed high torque fan-out capability, starting and the low speed hill climbing demands of electric automobile can be met; All power voltage is all used for driving external stator winding, and be now equivalent to only have internal rotor switched reluctance machines to run, motor is in high speed running status, and the high speed that can meet electric automobile travels.
The above; it is only preferred embodiment of the present utility model; it is not restriction the utility model being made to other form; the Equivalent embodiments that any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as equivalent variations is applied to other field; but everyly do not depart from technical solutions of the utility model content; according to any simple modification, equivalent variations and remodeling that technical spirit of the present utility model is done above embodiment, still belong to the protection range of technical solutions of the utility model.

Claims (8)

1. a water-cooled magnetic resistant electric motor with double stator switch, comprise electric machine casing, described electric machine casing comprises the front end housing cooperatively interacting and arrange, rear end cap and the external stator shell arranged between front end housing and rear end cap, it is characterized in that, described external stator shell is provided with external stator, described rear end cap is provided with internal stator, described internal stator is fixed on the middle position of rear end cap, center roller is provided with between described internal stator and external stator, described center roller is provided with sun gear away from one end of rear end cap, the periphery of described sun gear is provided with the planetary gear be connected with a joggle with sun gear, the periphery of described planetary gear is provided with the fixing ring gear be connected with a joggle with planetary gear, described planetary gear is fixed on planetary wheel carrier, described planetary wheel carrier arranges output shaft away from one end of planetary gear, described output shaft runs through front end housing and stretches out outside electric machine casing.
2. water-cooled magnetic resistant electric motor with double stator switch according to claim 1, it is characterized in that, described center roller comprises left rotor disk, sub-disk of turning right and the rotor core be arranged between left rotor disk and right-hand rotation sub-disk, and described sun gear is arranged in right-hand rotation sub-disk.
3. water-cooled magnetic resistant electric motor with double stator switch according to claim 1, is characterized in that, described fixing ring gear is provided with fixed cap away from the periphery of the side of planetary gear, and described fixed cap is fixedly connected with fixing ring gear.
4. water-cooled magnetic resistant electric motor with double stator switch according to claim 2, is characterized in that, described fixed cap is fixedly connected with front end housing activity.
5. water-cooled magnetic resistant electric motor with double stator switch according to claim 3, it is characterized in that, described external stator comprises the stator core be fixed on external stator shell and the coil windings be arranged on stator core, and described stator core yoke portion circumference is evenly distributed with through hole.
6. water-cooled magnetic resistant electric motor with double stator switch according to claim 4, it is characterized in that, described internal stator comprises the stationary axle be fixed on rear end cap and the inner-stator iron core be fixed on stationary axle, described inner-stator iron core is provided with internal stator winding, described inner-stator iron core yoke portion circumference is uniformly distributed water-cooled hole.
7. water-cooled magnetic resistant electric motor with double stator switch according to claim 5, is characterized in that, passes through pipeline connection between described through hole and water-cooled hole.
8. for controlling a system for the water-cooled magnetic resistant electric motor with double stator switch described in any one of the claims 1 ~ 6, it is characterized in that, comprising following control unit:
External stator control unit: the energising being mainly used in the coil windings controlled on stator core;
Internal stator control unit: the energising being mainly used in the internal stator winding controlled on inner-stator iron core;
Interior external stator control unit: be mainly used in the energising controlling the coil windings on stator core and the internal stator winding on inner-stator iron core.
CN201520592115.4U 2015-08-03 2015-08-03 Two stator switched reluctance motor of water -cooled and control system thereof Expired - Fee Related CN204967573U (en)

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Application Number Priority Date Filing Date Title
CN201520592115.4U CN204967573U (en) 2015-08-03 2015-08-03 Two stator switched reluctance motor of water -cooled and control system thereof

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Application Number Priority Date Filing Date Title
CN201520592115.4U CN204967573U (en) 2015-08-03 2015-08-03 Two stator switched reluctance motor of water -cooled and control system thereof

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099109A (en) * 2015-08-03 2015-11-25 聊城汇创电机有限公司 Water-cooled double-stator switched reluctance motor and control system thereof
CN109286296A (en) * 2018-11-28 2019-01-29 华南智能机器人创新研究院 A kind of wheeled brushed DC motor of cycloidal pin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099109A (en) * 2015-08-03 2015-11-25 聊城汇创电机有限公司 Water-cooled double-stator switched reluctance motor and control system thereof
CN109286296A (en) * 2018-11-28 2019-01-29 华南智能机器人创新研究院 A kind of wheeled brushed DC motor of cycloidal pin

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160113

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CF01 Termination of patent right due to non-payment of annual fee