CN1274980A - Outer-rotor motor with high efficiency, high torque and powerful support - Google Patents
Outer-rotor motor with high efficiency, high torque and powerful support Download PDFInfo
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- CN1274980A CN1274980A CN 99107472 CN99107472A CN1274980A CN 1274980 A CN1274980 A CN 1274980A CN 99107472 CN99107472 CN 99107472 CN 99107472 A CN99107472 A CN 99107472A CN 1274980 A CN1274980 A CN 1274980A
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Abstract
The outer-rotor motor of the present invention has a front end cap and a back end cap separately in front of and at the back of outer rotor support to connect the front and the back supporting bearing so that the bearing may have relatively smaller outer diameter. The front and the back end caps have ventilation holes and radiating fins to dissipate the heat of inner stator. For great power motor with great thickness outer rotor support, the main body, the front end cap and the back end cap of the outer rotor support are first manufactured separately and then assembled into one integral.
Description
The present invention relates to the external-rotor motor in a kind of electricity field motor, particularly relate to a kind of high efficiency, high torsion, the high external-rotor motor (the 9th case) that supports, it is the application case that has been called the further improvement of " high efficiency, high torsion, the high external-rotor motor that supports " (the 8th case) at the applicant to the name of Patent Office of the People's Republic of China's application.
See also shown in Figure 8, existing outer-rotor brushless motor, its structure is the cylindrical shape external rotor 71 that is provided with permanent magnet 70, ladle cover is in the outer rim of the columniform internal stator 74 that is provided with magnetizing coil 72 and internal stator yoke 73, set firmly rotating shaft 75 at the wherein center of an end of external rotor 71 in addition, this rotating shaft 75 penetrates the internal stator centre bore 76 of internal stator 74 again, and external rotor 71 is able to respect to internal stator 74 rotations.Behind energization excitation, external rotor 71 is just outwards exported required moment of torsion (Torgue) round internal stator 74 rotations.Because external rotor 71 must be centered around the outer rim rotation of internal stator 74, so among the two ends of external rotor 71, have only wherein an end normally to form an end face 71a and supported, an other end then must form opening 71b, and is unsettled structure.
Because during magnetizing coil 72 energization excitations of internal stator 74, can produce between the permanent magnet 70 existing permanent-magnetic fields of the electromagnetic field that it produced and external rotor 71 and inhale mutually and the reciprocation of repelling, make external rotor 71 be subjected to these two kinds and inhale with the reciprocations of repelling mutually and cause the phenomenon of rocking (Vibration), and and then induce the problem of vibration because of this kind shaking phenomenon.When rotating speed was high more, its centrifugal force was big more, or above-mentioned magnetic field intensity is when powerful more, and aforesaid shaking phenomenon and vibration problem also all can be serious more.Exactly because also this kind problem, and caused having from the beginning since the outer-rotor type motor, just can't produce the outer-rotor type motor that can export high pass filter, high torsion all the time; More because these 'bottleneck' restrictions that can't break through, and cause the outer-rotor type motor still only to rest on the use occasion of low horsepower and low torsion up to now, for example be used in the video disc CD-ROM drive motor of the motor of radiator fan, the disc CD-ROM drive motor of phonograph, soft disc player, the video disc CD-ROM drive motor of Hard Disk Drive and motor of video disc player or the like, the restriction of the technical bottleneck that its external rotor 71 is run on supporting construction still can't break through so far.
In order to solve foregoing problems, the inventor has formerly applied for that to Patent Office of the People's Republic of China name is called " high efficiency; high torsion; the high external-rotor motor that supports " (the 8th case), the 8th case is because of external rotor support force deficiency at the outer-rotor type motor, cause the outer-rotor type motor can't be applied to high efficiency, high pass filter, high torsion, problem in the high-revolving field of motors, at between the external rotor portion of outer-rotor type motor unsettled openend and internal stator, because of between external rotor magnetic conductor and the internal stator magnetizing coil because the reciprocation of armature reaction each other, and the factors such as centrifugal force that produced during because of high speed rotating, and external rotor is produced rock and the steady problem of phenomenon not, very superior external rotor openend spring bearing is provided, be the problem of galloping phenomenon, very superior external rotor supporting construction is provided.
If the external rotor susceptor diameter of external-rotor motor hour, the openend of the external rotor pedestal that above-mentioned the 8th case is provided still can directly be socketed on the cylindrical of the spring bearing of openend, if but the external rotor susceptor diameter is when big, then must adopt the king-sized spring bearing of diameter to be installed between the openend and internal stator pedestal of external rotor pedestal, the large diameter bearing cost of this kind costliness, and the unnecessary weight that increases motor, if the external rotor pedestal adopts sheet material to form with the punch press system of taking out in addition, and the external rotor susceptor diameter is designed to when big, in order to improve the power output of motor, therefore the magnetic flux that the thickness of external rotor pedestal must corresponding internal stator and thickening relatively, in case during the enlarged in thickness of external rotor pedestal, just can't use the method manufacturing of the system of taking out, therefore adopt the body and the front end housing of external rotor pedestal, rear end cap is to separate to make, and it is combined into one again.
Because the problem that above-mentioned existing outer-rotor brushless motor exists, the inventor is actively studied innovation, through constantly studying, designing based on abundant practical experience and professional knowledge, and after studying sample and improvement repeatedly, create the present invention finally.
Main purpose of the present invention is, overcome the defective that existing outer-rotor brushless motor exists, the openend spring bearing of deriving also need use the problem of big external diameter during at the enlarged diameter of external rotor pedestal, and provide a kind of high efficiency, high torsion, the high external-rotor motor (the 9th case) that supports, make its front end or the rear end difference big envelope front end housing or rear end cap of rotor pedestal outside, so that between the front end of external rotor pedestal and the front end spring bearing, and between the rear end of external rotor pedestal and the rear end spring bearing, all constitute annexation, make the external diameter of external rotor front end and rear end spring bearing can select less external diameter for use.
Another object of the present invention is to, a kind of high efficiency, high torsion, the high external-rotor motor (the 9th case) that supports are provided, make it further be provided with air vent hole or radiator shutter at front end housing and rear end cap respectively, so that the internal stator internal ventilation to external-rotor motor is dispelled the heat along with the rotation of external rotor.
A further object of the present invention is, a kind of high efficiency, high torsion, the high external-rotor motor (the 9th case) that supports are provided, make it further at condition than big power output motor, need to increase the thickness of external rotor pedestal because of corresponding motor magnetic flux, therefore on making with the body of external rotor pedestal and front end housing, rear end cap for separating manufacturing, again it is combined into one.
The objective of the invention is to realize by following technical scheme.The external-rotor motor that a kind of high efficiency, high torsion, the height that proposes according to the present invention supports, it is characterized in that it comprises internal stator, internal stator pedestal, external rotor, rear end cap, external rotor pedestal rear end spring bearing, front end housing, external rotor pedestal front end spring bearing, wherein: this internal stator, comprise the internal stator yoke and be set around the magnetizing coil of internal stator yoke, and be provided with internal stator positioning end corresponding to motor center; This internal stator pedestal, a wherein end of its internal stator pedestal is provided with the internal stator pedestal string post positioning end corresponding to motor center, so that above-mentioned internal stator positioning end to be provided is concentric urgent wearing, further more because of internal stator by screw, nut is locked in the internal stator pedestal to become the combination of joining, the bottom periphery of this internal stator pedestal string post positioning end is provided with an external rotor rear end bearing positioning end concentric with motor center (internal stator center), further be provided with the lead perforation of at least one between this external rotor rear end bearing positioning end and the internal stator pedestal, make the motor external control signal can be via lead perforation and with the perforation that is electrically connected of the magnetizing coil of internal stator or control loop, the center, top of this internal stator pedestal string post positioning end is extended at least and is provided with a front support rod and back support rod, and the support of secure is used with as motor running the time; This external rotor, ladle cover is in the outer rim of internal stator, and rotate with respect to internal stator, this external rotor comprises the external rotor pedestal, and this external rotor pedestal is the outer rim that wears into internal stator, and the inner edge of external rotor pedestal provides the fixing year moving usefulness of armature magnetic conductor of armature reaction, this armature magnetic conductor is with respect to internal stator and the rotation of armature reaction ground magnetic conduction, directly socket of the outer rim of aforementioned external rotor pedestal (shell), overlap joint mechanism loading, and, directly drive this mechanism loading running by external rotor output torque; This rear end cap, it is the rear end that is covered in the external rotor pedestal, the inner edge of this rear end cap is set in the cylindrical of external rotor pedestal rear end spring bearing, so that constitute connection relationship between the rear end of external rotor pedestal and the external rotor pedestal rear end spring bearing, make the external diameter of external rotor pedestal rear end spring bearing can suitably select the bearing of less external diameter for use; This external rotor pedestal rear end spring bearing, circle is sheathed on the external rotor rear end bearing positioning end of above-mentioned internal stator pedestal in it, concentric socket of its cylindrical and rear end cap and big envelope are in the rear end of external rotor base body, make external rotor pedestal rear end can be very firmly be supported on the external rotor rear end bearing positioning end of internal stator pedestal rotatably, can thoroughly solve external rotor and rock because of rotary centrifugal force and the caused rotation of armature effect; This front end housing is the front end that is covered in the external rotor base body, and the inner edge of this front end housing is set in the cylindrical of external rotor pedestal front end spring bearing, so that constitute connection relationship between the front end of rotor pedestal body and the external rotor pedestal front end spring bearing outside; This external rotor pedestal front end spring bearing, circle is socketed on the front support rod on internal stator pedestal string post positioning end top in it, the concentric socket of its cylindrical and front end housing, and big envelope is in the front end of external rotor base body, make the outer end of external rotor base body can be very firmly supported rotatably, and and above-mentioned external rotor pedestal rear end spring bearing and rear end cap jointly external rotor is firmly being supported, make external rotor can not rock corresponding to the armature reaction of internal stator, and magnetic conduction rotation is firmly supported.
Purpose of the present invention also can further realize by following technical measures.
Aforesaid high efficiency, high torsion, the high external-rotor motor that supports, wherein said front end housing is the front end that is covered in the external rotor base body separably, and wherein this rear end cap is the rear end that is covered in the external rotor base body separably.
Aforesaid high efficiency, high torsion, the high external-rotor motor that supports, wherein said front end housing is the front end that is covered in the external rotor base body separably, and wherein this rear end cap is the rear end that can be covered in the external rotor base body one-body moldedly.
Aforesaid high efficiency, high torsion, the high external-rotor motor that supports, wherein said front end housing is the front end that can be covered in the external rotor base body one-body moldedly, and wherein this rear end cap is the rear end that is covered in the external rotor base body separably.
Aforesaid high efficiency, high torsion, the high external-rotor motor that supports, wherein said rear end cap and front end housing can further be provided with air vent hole or radiator shutter, so that the internal stator internal ventilation to external-rotor motor is dispelled the heat along with the rotation of external rotor.
Aforesaid high efficiency, high torsion, the high external-rotor motor that supports, the center of wherein said internal stator pedestal further is provided with a central hole, and front support rod, back support rod are then for urgently penetrating combination, so that the usefulness of motor running support to be provided jointly.
Aforesaid high efficiency, high torsion, the high external-rotor motor that supports, it is set to only keep this front support rod wherein said front support rod and back support rod, and back support rod is deletion, and borrow the bolt or the screw of internal stator setting that base bottom provides, collaborative front support rod provides motor support fixing usefulness jointly.
Aforesaid high efficiency, high torsion, the high external-rotor motor that supports, it is set to this front support rod and back support rod is all deleted wherein said front support rod and back support rod, and bolt or the screw of borrowing the internal stator base bottom to be provided, provide motor support fixing usefulness.
Aforesaid high efficiency, high torsion, the high external-rotor motor that supports, the position location of wherein said external rotor pedestal front end spring bearing is provided with for leaving internal stator wire casing winding section, so that the wire casing basal area of internal stator can the most effective increasing, with the current density of raising magnetizing coil, and reach the effective outputting torsion that improves external-rotor motor.
The present invention compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, high efficiency of the present invention, high torsion, the high external-rotor motor (the 9th case) that supports except the structural feature with the 8th case, have also increased following special effect and characteristics:
1, the present invention is front end and the rear end difference big envelope front end housing and the rear end cap of rotor pedestal outside, so that between the front end of external rotor pedestal and the front end spring bearing, and between the rear end of external rotor pedestal and the rear end spring bearing, all constitute connection relationship, make the external diameter of external rotor front end and rear end spring bearing can suitably select the bearing of less external diameter for use.
2, the present invention further is provided with air vent hole and radiator shutter at front end housing and rear end cap respectively, so that the internal stator internal ventilation to external-rotor motor is dispelled the heat along with the rotation of external rotor.
3, the present invention is when the condition of big power output motor, because of its power output bigger, the thickness of external rotor pedestal must be corresponding the whole magnetic flux of motor and thickening relatively, therefore the body that is employing external rotor pedestal on making is to separate manufacturing with front end housing, rear end cap, again it is combined into one, and is very feasible manufacture.
In sum, no matter the present invention structurally or bigger improvement is all arranged on the function, and having produced handy and practical excellent results, and had the effect of enhancement really, thereby be suitable for practicality more, really is a new and innovative, progressive, practical new design.
Concrete structure of the present invention is provided in detail by following examples and accompanying drawing thereof.
Fig. 1 is the exploded perspective view of first embodiment of the invention.
Fig. 2 is the combining structure stereogram of first embodiment of the invention.
Fig. 3 is the profile of A-A hatching line among Fig. 2.
Fig. 4 is the profile of B-B hatching line among Fig. 3.
Fig. 5 is the profile of C-C hatching line among Fig. 3.
Fig. 6 is the section of structure of second embodiment of the invention.
Fig. 7 is the section of structure of third embodiment of the invention.
Fig. 8 is the structural profile schematic diagram of existing outer-rotor brushless motor.
Below in conjunction with accompanying drawing and preferred embodiment, to high efficiency, high torsion, high its concrete structure of external-rotor motor, feature and the effect thereof that supports that foundation the present invention proposes, describe in detail as after.
See also Fig. 1 to shown in Figure 5, it is the first embodiment of the present invention, high efficiency of the present invention, high torsion, the high external-rotor motor (the 9th case) 20 that supports, it comprises basic main member such as internal stator 21, external rotor 22, external rotor pedestal front end spring bearing 25, external rotor pedestal rear end spring bearing 23, external rotor base body 29, front end housing 85, rear end cap 86, front support rod 81 and back support rod 82, wherein:
Above-mentioned internal stator 21 comprises internal stator yoke 27 and is set around the magnetizing coil 28 of internal stator yoke 27, and should be provided with the internal stator positioning end 26a corresponding to motor center.
Above-mentioned external rotor 22, its ladle cover is in the outer rim of internal stator 21, and with respect to internal stator 21 rotations, this external rotor 22 comprises external rotor base body 29, this external rotor base body 29 is the outer rims that wear into internal stator 21, the inner edge of external rotor base body 29 is for providing the armature magnetic conductor that armature reaction is set 30 fixing years moving usefulness, this armature magnetic conductor 30 should be with respect to internal stator 21 and the magnetic conduction rotation of armature reaction ground, directly socket of the outer rim of aforesaid external rotor pedestal (shell), the overlap joint mechanism loading, electric fan for example, moving runner, gear, cycle hub or the like, and, directly drive this mechanism loading running by external rotor 22 output torques.External rotor base body 29 has external rotor pedestal front end 29a and external rotor pedestal rear end 29b, wherein, external rotor pedestal rear end 29b is for the outer rim that wears into internal stator 21, and front end 29a then borrows external rotor pedestal front end spring bearing 25 to be supported in the front end of internal stator 21.
Above-mentioned internal stator pedestal 26, wherein an end is provided with the internal stator pedestal string post positioning end 36 corresponding to motor center, so that above-mentioned internal stator positioning end 26a to be provided is concentric urgent wearing, further more the screw of reason internal stator positioning end outer rim wears by screw and is locked in internal stator pedestal 26 to become the combination of joining, the bottom periphery of this internal stator pedestal string post positioning end 36 is provided with an external rotor rear end bearing positioning end 48 concentric with motor center (internal stator center), further be provided with the lead perforation 33 of at least one between this external rotor rear end bearing positioning end 48 and the internal stator pedestal 26, make the motor external control signal can via lead bore a hole 33 and with the perforation that is electrically connected of the magnetizing coil 28 of internal stator 21 or control loop, for example electric wire 34 promptly enters motor inside via lead perforation 33.The center, top of this internal stator pedestal string post positioning end 36 is extended at least and is provided with a front support rod 81 and back support rod 82, and the support of secure is used with as motor running the time.
Above-mentioned front support rod 81, back support rod 82, its embodiment that front support rod 81 and back support rod 82 are set can append following several:
1, as shown in Figure 3, further be provided with a central hole 83 at the center of internal stator pedestal 26, front support rod 81, back support rod 82 are then for urgently penetrating combination.
2, as shown in Figure 6, be second embodiment of the invention, only keep front support rod 81, then deletion of back support rod 82, and bolt or the screw 84 of borrowing internal stator pedestal 26 bottoms to be provided, and collaborative front support rod 81 provides motor fixing usefulness jointly.
3, as shown in Figure 7, be third embodiment of the invention, wherein front support rod 81 and back support rod 82 are all deleted, and bolt or the screw 84 of borrowing internal stator pedestal 26 bottoms to be provided, provide motor fixing usefulness.
Above-mentioned rear end cap 86, be that big envelope is in the rear end of external rotor base body 29 29b, the inner edge of this rear end cap 86 is the cylindricals that are set in external rotor pedestal rear end spring bearing 23, so that constitute annexation between the rear end 29b of external rotor base body 29 and the external rotor pedestal rear end spring bearing 23, make the external diameter of external rotor rear end spring bearing 23 can select the less bearing of external diameter for use.
Above-mentioned external rotor pedestal rear end spring bearing 23, circle is the external rotor rear end bearing positioning end 48 that is sheathed on above-mentioned internal stator pedestal 26 in it, its cylindrical and rear end cap 86 concentric sockets and big envelope are in the rear end of external rotor base body 29 29b, make external rotor pedestal rear end 29b can be very firmly be supported on the external rotor rear end bearing positioning end 48 of internal stator pedestal 26 rotatably, rock because of rotary centrifugal force and the caused rotation of armature effect and can thoroughly solve external rotor 22.
Above-mentioned front end housing 85, be the front end 29a that is covered in external rotor base body 29, the inner edge of front end housing 85 is the cylindricals that are set in external rotor pedestal front end spring bearing 25, so that constitute connection relationship between the front end 29a of rotor pedestal body 29 and the external rotor pedestal front end spring bearing 25 outside.
The present invention can further be provided with air vent hole 89 at front end housing 85 respectively, or further is provided with fin 87, so as along with the rotation of external rotor 22 to the internal ventilation heat radiation of the internal stator 21 of external-rotor motor.Similarly, rear end cap 86 also can further be provided with air vent hole 90, or further is provided with radiator shutter 88, so that cooperate the air vent hole 89 or the radiator shutter 87 of front end housing 85, jointly to the internal ventilation heat radiation of the internal stator 21 of external-rotor motor.
Above-mentioned external rotor pedestal front end spring bearing 25, circle is the front support rod 81 that is sheathed on internal stator pedestal string post positioning end 36 tops in it, its cylindrical and front end housing 85 concentric sockets, and big envelope is in the front end 29a of external rotor base body 29, make the front end 29a of external rotor base body 29 can be very firmly supported rotatably, and and above-mentioned external rotor pedestal rear end spring bearing 23 and rear end cap 86 jointly external rotor 22 is firmly being supported, make external rotor 22 can not rock corresponding to the armature reaction of internal stator 21, and magnetic conduction rotation is firmly supported.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (9)
1, a kind of high efficiency, high torsion, the high external-rotor motor that supports is characterized in that it comprises internal stator, internal stator pedestal, external rotor, rear end cap, external rotor pedestal rear end spring bearing, front end housing, external rotor pedestal front end spring bearing, wherein:
A, this internal stator comprise the internal stator yoke and are set around the magnetizing coil of internal stator yoke, and are provided with the internal stator positioning end corresponding to motor center;
B, this internal stator pedestal, a wherein end of its internal stator pedestal is provided with the internal stator pedestal string post positioning end corresponding to motor center, so that above-mentioned internal stator positioning end to be provided is concentric urgent wearing, further more because of internal stator by screw, nut is locked in the internal stator pedestal to become the combination of joining, the bottom periphery of this internal stator pedestal string post positioning end is provided with an external rotor rear end bearing positioning end concentric with motor center (internal stator center), further be provided with the lead perforation of at least one between this external rotor rear end bearing positioning end and the internal stator pedestal, make the motor external control signal can be via lead perforation and with the perforation that is electrically connected of the magnetizing coil of internal stator or control loop, the center, top of this internal stator pedestal string post positioning end is extended at least and is provided with a front support rod and back support rod, and the support of secure is used with as motor running the time;
C, this external rotor, ladle cover is in the outer rim of internal stator, and rotate with respect to internal stator, this external rotor comprises the external rotor pedestal, this external rotor pedestal is the outer rim that wears into internal stator, the inner edge of external rotor pedestal provides the fixing year moving usefulness of armature magnetic conductor of armature reaction, this armature magnetic conductor is with respect to internal stator and the rotation of armature reaction ground magnetic conduction, directly socket of the outer rim of aforementioned external rotor pedestal (shell), overlap joint mechanism loading, and, directly drive this mechanism loading running by external rotor output torque;
D, this rear end cap, it is the rear end that is covered in the external rotor pedestal, the inner edge of this rear end cap is set in the cylindrical of external rotor pedestal rear end spring bearing, so that constitute connection relationship between the rear end of external rotor pedestal and the external rotor pedestal rear end spring bearing, make the external diameter of external rotor pedestal rear end spring bearing can suitably select the bearing of less external diameter for use;
E, this external rotor pedestal rear end spring bearing, circle is sheathed on the external rotor rear end bearing positioning end of above-mentioned internal stator pedestal in it, concentric socket of its cylindrical and rear end cap and big envelope are in the rear end of external rotor base body, make external rotor pedestal rear end can be very firmly be supported on the external rotor rear end bearing positioning end of internal stator pedestal rotatably, thoroughly solve external rotor and rock because of rotary centrifugal force and the caused rotation of armature effect;
F, this front end housing are the front ends that is covered in the external rotor base body, and the inner edge of this front end housing is set in the cylindrical of external rotor pedestal front end spring bearing, so that constitute connection relationship between the front end of rotor pedestal body and the external rotor pedestal front end spring bearing outside;
G, this external rotor pedestal front end spring bearing, circle is socketed on the front support rod on internal stator pedestal string post positioning end top in it, the concentric socket of its cylindrical and front end housing, and big envelope is in the front end of external rotor base body, make the outer end of external rotor base body can be very firmly supported rotatably, and and above-mentioned external rotor pedestal rear end spring bearing and rear end cap jointly external rotor is firmly being supported, make external rotor can not rock corresponding to the armature reaction of internal stator, and magnetic conduction rotation is firmly supported.
2, high efficiency according to claim 1, high torsion, the high external-rotor motor that supports, it is characterized in that wherein said front end housing is the front end that is covered in the external rotor base body separably, and wherein this rear end cap is the rear end that is covered in the external rotor base body separably.
3, high efficiency according to claim 1, high torsion, the high external-rotor motor that supports, it is characterized in that wherein said front end housing is the front end that is covered in the external rotor base body separably, and wherein this rear end cap is the rear end that can be covered in the external rotor base body one-body moldedly.
4, high efficiency according to claim 1, high torsion, the high external-rotor motor that supports, it is characterized in that wherein said front end housing is the front end that can be covered in the external rotor base body one-body moldedly, and wherein this rear end cap is the rear end that is covered in the external rotor base body separably.
5, according to the described high efficiency of arbitrary claim, high torsion, the high external-rotor motor that supports in the claim 1 to 4, it is characterized in that wherein said rear end cap and front end housing can further be provided with air vent hole or radiator shutter, so that the internal stator internal ventilation to external-rotor motor is dispelled the heat along with the rotation of external rotor.
6, high efficiency according to claim 1, high torsion, the high external-rotor motor that supports, the center that it is characterized in that wherein said internal stator pedestal further is provided with a central hole, front support rod, back support rod are then for urgently penetrating combination, so that the usefulness of motor running support to be provided jointly.
7, according to claim 1 or 6 described high efficiency, high torsion, the high external-rotor motor that supports, it is set to only keep this front support rod to it is characterized in that wherein said front support rod and back support rod, and back support rod is deletion, and borrow the bolt or the screw of internal stator setting that base bottom provides, collaborative front support rod provides motor support fixing usefulness jointly.
8, according to claim 1 or 6 described high efficiency, high torsion, the high external-rotor motor that supports, it is set to this front support rod and back support rod is all deleted to it is characterized in that wherein said front support rod and back support rod, and bolt or the screw of borrowing the internal stator base bottom to be provided, provide motor support fixing usefulness.
9, high efficiency according to claim 1, high torsion, the high external-rotor motor that supports, the position location that it is characterized in that wherein said external rotor pedestal front end spring bearing is provided with for leaving internal stator wire casing winding section, so that the wire casing basal area of internal stator can the most effective increasing, with the current density of raising magnetizing coil, and reach the effective outputting torsion that improves external-rotor motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99107472 CN1274980A (en) | 1999-05-21 | 1999-05-21 | Outer-rotor motor with high efficiency, high torque and powerful support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99107472 CN1274980A (en) | 1999-05-21 | 1999-05-21 | Outer-rotor motor with high efficiency, high torque and powerful support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1274980A true CN1274980A (en) | 2000-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99107472 Pending CN1274980A (en) | 1999-05-21 | 1999-05-21 | Outer-rotor motor with high efficiency, high torque and powerful support |
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| Country | Link |
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| CN (1) | CN1274980A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447349A (en) * | 2010-10-09 | 2012-05-09 | 付强 | Axial flow air cooled external rotor electric machine |
| CN103460571A (en) * | 2011-03-31 | 2013-12-18 | 并木精密宝石株式会社 | Outer rotor motor |
| CN104882984A (en) * | 2015-06-15 | 2015-09-02 | 支敏之 | Cover with function of active heat dissipation for external rotor motor |
| CN105915012A (en) * | 2016-05-30 | 2016-08-31 | 朱幕松 | Gearless and brushless rim motor for new energy vehicles |
| WO2024088258A1 (en) * | 2022-10-24 | 2024-05-02 | 美的威灵电机技术（上海）有限公司 | End cover, electric motor and vehicle |
-
1999
- 1999-05-21 CN CN 99107472 patent/CN1274980A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447349A (en) * | 2010-10-09 | 2012-05-09 | 付强 | Axial flow air cooled external rotor electric machine |
| CN102447349B (en) * | 2010-10-09 | 2013-12-11 | 付强 | Axial flow air cooled external rotor electric machine |
| CN103460571A (en) * | 2011-03-31 | 2013-12-18 | 并木精密宝石株式会社 | Outer rotor motor |
| CN103460571B (en) * | 2011-03-31 | 2016-11-16 | 并木精密宝石株式会社 | Outer rotor motor |
| CN104882984A (en) * | 2015-06-15 | 2015-09-02 | 支敏之 | Cover with function of active heat dissipation for external rotor motor |
| CN105915012A (en) * | 2016-05-30 | 2016-08-31 | 朱幕松 | Gearless and brushless rim motor for new energy vehicles |
| CN105915012B (en) * | 2016-05-30 | 2018-01-16 | 朱幕松 | New-energy automobile is anodontia brushless wheel rim motor |
| WO2024088258A1 (en) * | 2022-10-24 | 2024-05-02 | 美的威灵电机技术（上海）有限公司 | End cover, electric motor and vehicle |
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