CN2891453Y - Disk-type bi-rotor mono-directional brushless DC motor - Google Patents
Disk-type bi-rotor mono-directional brushless DC motor Download PDFInfo
- Publication number
- CN2891453Y CN2891453Y CN 200620056994 CN200620056994U CN2891453Y CN 2891453 Y CN2891453 Y CN 2891453Y CN 200620056994 CN200620056994 CN 200620056994 CN 200620056994 U CN200620056994 U CN 200620056994U CN 2891453 Y CN2891453 Y CN 2891453Y
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Abstract
The utility model discloses a disc-type and double-rotor and single rotation direction and a DC electric motor without brush, which comprises a frame, an end cover, a stator, two rotors and an output axle, wherein the stator comprises a left and a right rotor metal core, a permanent magnet stator body and a stator winding, wherein the two rotor metal cores, the permanent magnet stator body and the stator are disc-type, at least the inner side of the rotor is permanent magnets with the same pole and the inner side is straight arranged in the frame, at least two outer sides of the permanent magnet stator are permanent magnet with a contrary pole to the rotor, the permanent magnet stator is arrange between the left and the right stator metal core and is fixed into a whole body via a meson, the winding of the stator is winded on the whole body connected by the left, the right stator metal core and the permanent magnets, the whole rotor is straight arranged between the two rotors, the output axle is fixedly connected with the rotor through the whole stator and one end of the output axle is extended to the outside of the end cover. No direction changing device is needed in the utility model, and the utility model has the advantages of simple configuration, capability of single rotation axle output and high loading ability.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to a kind of DC Brushless Motor.
Background technology
The DC motor that adopts all needs by reversing arrangement at present, can keep the continuous running of rotor.Traditional DC motor adopts brush mechanically to commutate usually, but this mode exists defectives such as mechanical friction is serious, the noise spark is big, the life-span is short, and manufacturing cost height, maintenance difficult are restricted its development and use simultaneously.For this reason, DC Brushless Motor has obtained developing rapidly in recent years, it is to adopt brushless electronics phase changer to commutate, plurality of advantages such as alternating current motor is reliable though this mode has, good speed adjustment features, but simple logical upward direct current is inoperable, must could move by the electronics phase changer, but the cost of electronics phase changer is too high.In addition, its building block of DC Brushless Motor that adopts is many at present, usually constitute by motor body (comprising main stator and main rotor), electronic switch circuit (comprising the processing of logical power switch and position signalling) and position transducer (comprising sensor stator and rotor sensor), there are defectives such as manufacturing cost height, assembling maintenance difficult equally, thereby limited the range of application of DC Brushless Motor.
In addition, its rotor major part of existing motor all is a cylinder type, and the suffered power of rotor is to act on cylindrical outer surface, and suffered moment is little, thereby torque is also little, and energy consumption is bigger.Simultaneously, the cutting of the stator coil and the magnetic line of force is vicissitudinous, and the magnetic flux on the stator coil also can change, thereby can induce back electromotive force, and power end voltage is for overcoming back electromotive force, and starting current is several times as much as rated current, waste a large amount of electric energy, also influenced the performance and the operation of equipment.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of reversing arrangement that need not is provided, simple in structure, reliable, can reduce manufacturing cost and energy consumption, single rotating shaft output can be provided, collar plate shape dual rotor single turning DC brushless motor that load capacity is strong.
The purpose of this utility model is achieved by the following technical programs:
A kind of collar plate shape dual rotor single turning DC brushless motor that the utility model provides comprises support, end cap, stator, rotor and output shaft, and described end cap is arranged on the two ends of support, and described stator comprises stator core and stator winding; Described stator core, rotor are collar plate shape, and its rotor is two, and its medial surface is the identical permanent magnet of magnetic pole at least, and two rotors vertically are arranged in the support respectively, and its medial surface is corresponding; Described stator also comprises the permanent-magnet stator body of collar plate shape, and at least two lateral surfaces of this permanent-magnet stator body are and the opposite polarity permanent magnet of rotor magnetic pole; Described stator core is by independently left stator core and right stator core are formed, the permanent-magnet stator body is the gap by meson and vertically is arranged on and is fixed as an integral body between left stator core and the right stator core and with it, described stator winding be fan-shaped be wound on evenly that left and right stator core and permanent-magnet stator body form constitute whole stator on the whole, the winding coil sense of current unanimity of same lateral surface, the lateral surface winding coil current opposite in direction of left and right stator core; Described whole stator vertically is fixed between two rotors, and the lateral surface of left and right stator core is corresponding with the medial surface of two rotors respectively; Described output shaft passes whole stator and is fastenedly connected with two rotors, and the one end stretches out outside the end cap.
Stator of the present utility model is fixed between two rotors, two work magnetic circuits about two rotors and middle permanent-magnet stator body constitute.The magnetic line of force passes a left side or the right stator core arrival S utmost point from the N utmost point wherein, and winding coil is vertical mutually with the magnetic line of force, and the magnetic line of force direction of two magnetic circuits is opposite.After coil feeds same DC power supply, its sense of current unanimity in the same side of stator (flow to the stator center of circle or flow to cylindrical), but the lateral surface winding coil current opposite in direction of left and right stator core by the center of circle.In left work magnetic circuit, according to left hand rule, the stator slot inner wire that along the circumferential direction is fan-shaped distribution in left stator core side is subjected to the effect of electromagnetic force, thereby forms unidirectional electromagnetic torque.Because left stator core and permanent-magnet stator body maintain static, so the rotor on the left side just is subjected to the effect of its reaction force, and forms torque and realize rotation continuously.In like manner, in right work magnetic circuit, the acquisition of the rotor on the right realizes coaxial equidirectional rotation with the torque of the rotor equidirectional on the left side, realizes the output that singly turns at the drive lower rotary shaft of two rotors.As the needs inverted running, only need to change power positive cathode and get final product.The utility model need not the continuous running that reversing arrangement just can be realized motor, simplifies the structure, provides cost savings.In addition, rotor is a collar plate shape, and the long suffered electromagnetic force of radius acts on the rotor-side disc radius, and moment is longer, and torque is big; Simultaneously, work magnetic circuit is a uniform magnetic field, left and right sides stator coil is fan-shaped array, and the plane of all stator coils parallels with the magnetic line of force, the even all the time perpendicular cuts magnetic line of force in stator coil limit, the magnetic line of force passes from the segmental core double wedge on next door, stator coil plane all the time, seldom have the magnetic line of force to pass through in the stator coil or magnetic flux not variation basically, so stator coil can not induce back electromotive force basically.
For avoiding the magneticaction between rotor and permanent-magnet stator body and support and the end cap, two rotors described in the utility model only have identical magnetic pole at medial surface; Described permanent-magnet stator body only has identical magnetic pole at lateral surface.
Be the sense of current of realizing that stator coil had, the utility model can be taked following concrete measure: described left and right stator core along the circumferential direction is fan-shaped alternate intervals formation by stator tooth and stator slot at lateral surface; Described stator slot is provided with internal layer slotted eye and middle level slotted eye; Also be provided with internal layer lead-in wire groove and middle level lead-in wire groove on the stator tooth of left side stator core, the position of described internal layer lead-in wire groove and middle level lead-in wire groove is corresponding with internal layer slotted eye and middle level slotted eye respectively, and all circular array is arranged; Also have internal layer slotted eye and the middle level slotted eye corresponding on the described permanent-magnet stator body with left and right stator core; Described stator winding is made of long winding and short winding, and long winding technique is between stator slot outer edge and internal layer slotted eye, and short winding technique is between stator slot outer edge and middle level slotted eye.Stator winding of the present utility model can be by whole winding of a lead coiled, also can be separately the independent winding of coiled or a plurality of independent winding separately.
Turning to two independent windings with two leads is example, stator winding described in the utility model is formed by two lead coilings, wherein lead according to " the stator slot outer edge---stator slot of left stator core---internal layer lead-in wire groove------stator slot of right stator core---the stator slot outer edge that passes the adjacent inner layer slotted eye " sequential loop coiling growth winding; Another lead according to " the stator slot outer edge---stator slot of left stator core---middle level lead-in wire groove------stator slot of right stator core---the stator slot outer edge that passes adjacent middle level slotted eye " sequential loop turns to short winding; The coil of described lead on a stator slot has a circle at least or more than the circle.Long winding and short winding can be separately around circles on a stator slot, also can be around multiturn after the lead-in wire groove goes to adjacent next stator slot, lead only needs a bit of lead just passable when a stator slot wire jumper goes to adjacent next stator slot like this.
Be the installation of firm stator, left and right stator core described in the utility model is fixedlyed connected with support by tongue and groove structure and fixed screw at outer edge; Described permanent-magnet stator body tightens together by bolt and left and right stator core; The middle part of left and right stator core and permanent-magnet stator body is equipped with center hole; Described output shaft (5) passes center hole, and one of them rotor is fixed on the output shaft, and another rotor is fastenedly connected by pin key, collar and hold-doun nut and output shaft, also is provided with the loading and unloading draw ring on its lateral surface, to make things convenient for the loading and unloading of this rotor; Be provided with bearing between described output shaft and the end cap, make rotor and output shaft to support to be installed on the end cap and rotate.
The middle part of the medial surface of two rotors described in the utility model and the external side of permanent-magnet stator, with the corresponding zone of forming by the internal layer slotted eye of interior circle, make by non-magnetic material, the lateral surface magnet radius that also is the permanent-magnet stator body is isometric with the magnet radius of rotor medial surface accordingly, can avoid the influence of magnetic force to stator core like this.
The utlity model has following beneficial effect:
(1) the utility model need not reversing arrangement, and the simple logical continuous smooth operation that direct current just can be realized DC motor of going up has reduced manufacturing cost, and simple in structure, reliable, has enlarged the popularization and the scope of application.
(2) rotor is a collar plate shape, and suffered power is to act on the side of rotor, and moment is longer, thereby has increased torque, helps saving energy and reduce the cost.In addition, two equidirectional rotations of rotor, load capacity is stronger.
(3) coil of stator of motor can not induce back electromotive force basically, and power end voltage need not be offset back electromotive force when therefore moving, and starting current equates with running current basically.Compare with traditional DC motor, under identical running current, supply voltage of the present utility model only needs one of several parts of traditional power supply of dc motor voltage (starting current is several times as much as running current), has saved a large amount of electric energy.
(4) because the magnetic flux in the stator coil does not change basically, and stator coil can not induce the back electromotive force eddy current basically, so stator can reduce manufacture difficulty by the silicon steel plate monoblock cast(ing), helps further reducing manufacturing cost.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the C-C cutaway view of Fig. 1;
Fig. 5 is the D-D cutaway view of Fig. 1;
Fig. 6 is the structural representation of left stator core lateral surface embodiment illustrated in fig. 1;
Fig. 7 is the structural representation of right stator core lateral surface embodiment illustrated in fig. 1;
Fig. 8 is the coiling schematic diagram of stator winding embodiment illustrated in fig. 1 on left stator core lateral surface;
Fig. 9 is the coiling schematic diagram of stator winding embodiment illustrated in fig. 1 on right stator core lateral surface;
Figure 10 is the assembling schematic diagram (leeched line loop current direction) of left and right stator core embodiment illustrated in fig. 1 and permanent-magnet stator body;
Figure 11 is the structural representation (leeched line loop current direction) of whole stator embodiment illustrated in fig. 1;
Figure 12 is a fundamental diagram embodiment illustrated in fig. 1.
Among the figure: support 1, end cap 2, N utmost point rotor 3,4, no magnetic area S, output shaft 5, left stator core 6a, right stator core 6b, draw-in groove 61, center hole 62, stator tooth 63, stator slot 64, internal layer slotted eye 65, middle level slotted eye 66, internal layer lead-in wire groove 67, middle level lead-in wire groove 68, long winding 7, long winding the end of a thread 71, long winding wire tail 72, short winding 8, short winding the end of a thread 81, short winding wire tail 82, projection 9, S utmost point permanent-magnet stator body 10, loading and unloading draw ring 11, bearing 12, fixed screw 13, bearing holder (housing, cover) 14, bearing (ball) cover 15, meson 16, pin key 17, collar 18, hold-doun nut 19, bolt 20
Embodiment
Fig. 1～Figure 12 shows that embodiment of the present utility model comprises support 1, end cap 2, stator, rotor 3 and 4, output shaft 5, and stator comprises left stator core 6a, right stator core 6b, permanent-magnet stator body 10 and stator winding.As shown in Figure 1, end cap 2 is arranged on the two ends of support 1, left side stator core 6a, right stator core 6b, permanent-magnet stator body 10 and rotor 3,4 are collar plate shape (seeing Fig. 2, Fig. 3, Fig. 4 and Fig. 5), and its rotor is two permanent magnets and is the N utmost point (or S utmost point) rotor.For avoiding the magneticaction between rotor and support and the end cap, two rotors can be the N utmost point (or S utmost point) at medial surface only also.Two rotors vertically are arranged in the support 1 respectively, and its medial surface is corresponding.Permanent-magnet stator body 10 is the S utmost point (or N utmost point) at lateral surface, by meson 16 be the gap and vertically be arranged on left stator core 6a and right stator core 6b between, and be fixed as an integral body with it by bolt 20, vertically be fixed on then between two rotors 3,4, the lateral surface of left and right stator core is corresponding with the medial surface of two rotors respectively.The structure of left and right stator core 6a, 6b is identical, as depicted in figs. 1 and 2, the outer edge of left and right stator core 6a, 6b is evenly equipped with 4 draw-in grooves 61 and some screw installing holes, the middle part of its middle part and permanent-magnet stator body 10 is equipped with center hole 62, the inwall of support 1 and draw-in groove 61 be corresponding to be provided with 4 projections 9, projection 9 and draw-in groove 61 can be chimeric mutually, make left and right stator core 6a, 6b can fixedly connected with support 1 by tongue and groove structure and fixed screw 13 at outer edge.As shown in Figure 1, output shaft 5 passes center hole 62, and rotor 4 is fixed on the output shaft 5, and rotor 3 is fastenedly connected with output shaft 5 by pin key 17 (seeing Fig. 1 and Fig. 3), collar 18 and hold-doun nut 19.Also be provided with two loading and unloading draw rings on the lateral surface of rotor 3, to make things convenient for the loading and unloading of rotor 3.The middle part of the medial surface of rotor 3,4 and permanent-magnet stator body 10 lateral surfaces and the corresponding zone of forming by the internal layer slotted eye of interior circle, make by non-magnetic material, be no magnetic area S, the lateral surface magnet radius that also is the permanent-magnet stator body is isometric with the magnet radius of rotor medial surface accordingly, can avoid the influence of magnetic force to stator core like this.One end of output shaft 5 stretches out outside the end cap, by bearing holder (housing, cover) 14 and bearing (ball) cover 15 bearing 12 is installed between output shaft 5 and the end cap 2, makes rotor 3,4 and output shaft 5 to support to be installed on the end cap 2 and rotates.
As Fig. 6, Fig. 7, Figure 10 and shown in Figure 11, left and right stator core 6a, 6b along the circumferential direction are fan-shaped alternate intervals formation by stator tooth 63 and stator slot 64 at lateral surface, can be formed by the casting of bulk silicon steel plate.Stator slot 64 is provided with internal layer slotted eye 65 and middle level slotted eye 66; As shown in Figure 6, also be provided with internal layer lead-in wire groove 67 and middle level lead-in wire groove 68 on the stator tooth 63 of left stator core 6a, the position of internal layer lead-in wire groove 67 and middle level lead-in wire groove 68 is corresponding with internal layer slotted eye 65 and middle level slotted eye 66 respectively, and all circular array is arranged; Also have internal layer slotted eye 65 corresponding and middle level slotted eye 66 (see figure 5)s on the permanent-magnet stator body 10 with left and right stator core 6a, 6b; Stator winding is made of long winding 7 and short winding 8, and long winding 7 is wound between stator slot outer edge and the internal layer slotted eye 65, and short winding 8 is wound between stator slot outer edge and the middle level slotted eye 66.When stator core is big, distribute more evenly rationally for making stator winding, also can a plurality of middle levels slotted eye be set at every stator slot upper edge radial direction, at every stator tooth upper edge radial direction of left stator core 6a a plurality of middle levels lead-in wire groove is set.
As Fig. 8 and shown in Figure 9, stator winding forms two independent windings by two lead coilings.Wherein lead is from the lateral surface of left stator core 6a, according to " the stator slot outer edge---stator slot 64 of left stator core 6a---internal layer lead-in wire groove 67------stator slot 64 of right stator core 6b---the stator slot outer edge that passes adjacent inner layer slotted eye 65 " the even coiling of sequential loop, finish and constitute long winding 7 to the lateral surface of right stator core 6b.Another lead is from the lateral surface of left stator core 6a, according to " the stator slot outer edge---stator slot 64 of left stator core 6a---middle level lead-in wire groove 68------stator slot 64 of right stator core 6b---the stator slot outer edge that passes adjacent middle level slotted eye 66 " the even coiling of sequential loop coiling, finish and constitute short winding 8 to the lateral surface of right stator core 6b.Long winding 7 and short winding 8 then are fan-shaped coiling on stator core.The coil of lead on a stator slot can be as Fig. 6 and Fig. 7 around a circle, also can be around multiturn.For example, if each stator slot need in winding process, only need go to next stator slot through lead-in wire groove and slotted eye earlier around 30 circle coils on the corresponding stator slot in stator core left and right side again around 30 circle coils.Lead only needs a bit of lead just passable when a stator slot wire jumper goes to adjacent next stator slot like this.
The operation principle of present embodiment as shown in figure 12, two rotors 3,4 and middle permanent-magnet stator body 10 constitute left and right two work magnetic circuits.Left side work magnetic circuit is: the magnetic line of force is from the left N utmost point rotor 3-air gap-fan-shaped double wedge-air gap of left stator-left permanent-magnet stator S utmost point.Right work magnetic circuit is: the magnetic line of force is from right N utmost point rotor 4--air gap--the right permanent-magnet stator S of the fan-shaped double wedge of right stator--air gap--utmost point.Long winding 7 and short winding 8 are the fan-shaped left side that evenly is wound on, in the stator slot of right stator core, a left side, the magnetic line of force with left and right sides work magnetic circuit is vertical mutually respectively for the effective working edge of coil in the right flank stator slot, when long winding the end of a thread 71 and short winding the end of a thread 81 connect dc power anode, when the line tail 82 of long winding wire tail 72 and short winding connects dc power cathode, as Fig. 8, Fig. 9, the sense of current I of left surface stator embedded coil side shown in Figure 11 flows to internal circle by outer circumferential edge, the current opposite in direction of the coil side sense of current of right flank stator slot and left surface stator slot coil side flows to outer circumferential edge by internal circle.With the stator first half and each one group of coil of Lower Half is example, in left work magnetic circuit, in the left surface stator slot, its first half conductor and Lower Half conductor are respectively with shown in the ab limit and a ' b ' limit of Figure 12, according to left hand rule, first half conductor ab limit in the left surface stator slot and Lower Half conductor a ' b ' limit are subjected to the effect of electromagnetic force F1 and electromagnetic force F2, F1 and F2 equal and opposite in direction respectively, direction is opposite and in the same plane, thereby forms torque.Because left stator core 6a and permanent-magnet stator body maintain static, therefore corresponding with it rotor 3 just is subjected to the effect of its reaction force and forms torque, realizes the continuous rotation of n direction.In like manner, in right work magnetic circuit, in the right flank stator slot, its first half and Lower Half conductor are respectively with shown in the cd limit and c ' d ' limit of Figure 12, be subjected to the effect of electromagnetic force F3 and electromagnetic force F4 respectively and form torque, owing to right stator core 6b, permanent-magnet stator body 10 maintain static, corresponding with it rotor 4 just obtains opposition, this opposition is identical with the direction of rotation of rotor 3, and therefore two rotors 3,4 are realized coaxial equidirectional continuous rotation.Inverted running gets final product the power positive cathode reversal connection if desired.The operation characteristic of present embodiment is: all left and right side stator embedded coil side per minute per seconds all are subjected to the effect of electromagnetic force, and can both form the torque of same direction of rotation.
Claims (6)
1, a kind of collar plate shape dual rotor single turning DC brushless motor comprises support (1), end cap (2), stator, rotor (3,4) and output shaft (5), and described end cap (2) is arranged on the two ends of support (1), and described stator comprises stator core and stator winding; It is characterized in that: described stator core, rotor (3,4) are collar plate shape, and its rotor is two, and its medial surface is the identical permanent magnet of magnetic pole at least, and two rotors vertically are arranged on respectively in the support (1), and its medial surface is corresponding; Described stator also comprises the permanent-magnet stator body (10) of collar plate shape, and (10) at least two lateral surfaces of this permanent-magnet stator body are and the opposite polarity permanent magnet of rotor magnetic pole; Described stator core is by independently left stator core (6a) and right stator core (6b) are formed, permanent-magnet stator body (10) is the gap by meson and vertically is arranged on and is fixed as an integral body between left stator core (6a) and the right stator core (6b) and with it, described stator winding (7,8) be fan-shaped be wound on evenly that left and right stator core (6a, 6b) and permanent-magnet stator body (10) form constitute whole stator on the whole, the winding coil sense of current unanimity of same lateral surface, the lateral surface winding coil current opposite in direction of left and right stator core (6a, 6b); Described whole stator vertically is fixed between two rotors, and the lateral surface of left and right stator core (6a, 6b) is corresponding with the medial surface of two rotors respectively; Described output shaft (5) passes whole stator and is fastenedly connected with two rotors (3,4), and the one end stretches out outside the end cap (2).
2, collar plate shape dual rotor single turning DC brushless motor according to claim 1 is characterized in that: described two rotors only have identical magnetic pole at medial surface; Described permanent-magnet stator body (10) only has identical magnetic pole at lateral surface.
3, collar plate shape dual rotor single turning DC brushless motor according to claim 1 is characterized in that: described left and right stator core (6a, 6b) along the circumferential direction is fan-shaped alternate intervals formation by stator tooth (63) and stator slot (64) at lateral surface; Described stator slot (64) is provided with internal layer slotted eye (65) and middle level slotted eye (66); Also be provided with internal layer lead-in wire groove (67) and middle level lead-in wire groove (68) on the stator tooth of left side stator core (6a), the position of described internal layer lead-in wire groove (67) and middle level lead-in wire groove (68) is corresponding with internal layer slotted eye (65) and middle level slotted eye (66) respectively, and all circular array is arranged; Also have internal layer slotted eye (65) corresponding and middle level slotted eye (66) on the described permanent-magnet stator body (10) with left and right stator core (6a, 6b); Described stator winding is made of long winding (7) and short winding (8), and long winding (7) is wound between stator slot outer edge and the internal layer slotted eye (65), and short winding (8) is wound between stator slot outer edge and the middle level slotted eye (66).
4, collar plate shape dual rotor single turning DC brushless motor according to claim 3, it is characterized in that: described stator winding is formed by two lead coilings, wherein lead according to " the stator slot outer edge---stator slot (64) of left stator core (6a)---internal layer lead-in wire groove (67)------stator slot (64) of right stator core (6b)---the stator slot outer edge that passes adjacent inner layer slotted eye (65) " sequential loop coiling growth winding (7); Another lead according to " the stator slot outer edge---stator slot (64) of left stator core (6a)---middle level lead-in wire groove (68)------stator slot (64) of right stator core (6b)---the stator slot outer edge that passes adjacent middle level slotted eye (66) " sequential loop turns to short winding (8); The coil of described lead on a stator slot has a circle at least or more than the circle.
5, collar plate shape dual rotor single turning DC brushless motor according to claim 1 is characterized in that: described left and right stator core (6a, 6b) is fixedlyed connected with support (1) by tongue and groove structure and fixed screw at outer edge; Described permanent-magnet stator body (10) tightens together by bolt and left and right stator core (6a, 6b); The middle part of left and right stator core (6a, 6b) and permanent-magnet stator body (10) is equipped with center hole (62); Described output shaft (5) passes center hole (62), one of them rotor (4) is fixed on the output shaft (5), another rotor (3) is fastenedly connected by pin key (17), collar (18) and hold-doun nut (19) and output shaft (5), also is provided with loading and unloading draw ring (11) on its lateral surface; Be provided with bearing (12) between described output shaft (5) and the end cap (2).
6, collar plate shape dual rotor single turning DC brushless motor according to claim 1, it is characterized in that: the middle part of the medial surface of described two rotors (3,4) and permanent-magnet stator body (10) lateral surface and the corresponding zone of internal layer slotted eye (65), make by non-magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620056994 CN2891453Y (en) | 2006-03-27 | 2006-03-27 | Disk-type bi-rotor mono-directional brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620056994 CN2891453Y (en) | 2006-03-27 | 2006-03-27 | Disk-type bi-rotor mono-directional brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891453Y true CN2891453Y (en) | 2007-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620056994 Expired - Lifetime CN2891453Y (en) | 2006-03-27 | 2006-03-27 | Disk-type bi-rotor mono-directional brushless DC motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN2891453Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326322A (en) * | 2009-01-20 | 2012-01-18 | 葛西敏幸 | Electric motor |
| CN102882335A (en) * | 2012-10-22 | 2013-01-16 | 东南大学 | Axial magnetic flux permanent magnet induction wind-driven generator |
-
2006
- 2006-03-27 CN CN 200620056994 patent/CN2891453Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102326322A (en) * | 2009-01-20 | 2012-01-18 | 葛西敏幸 | Electric motor |
| CN102882335A (en) * | 2012-10-22 | 2013-01-16 | 东南大学 | Axial magnetic flux permanent magnet induction wind-driven generator |
| CN102882335B (en) * | 2012-10-22 | 2014-07-09 | 东南大学 | Axial magnetic flux permanent magnet induction wind-driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090401 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |