CN218472916U - AC outer rotor motor - Google Patents

Abstract

The utility model discloses an exchange external rotor motor, including the reel motor casing, integrated system has the stator support, the bearing room, the stator protection end cover of tang structure and through-hole, integrated system has the bearing room, the external rotor protection end cover of tang structure and through-hole, reel motor casing one end becomes concentric suit with the tang structure of stator protection end cover, the reel motor casing other end becomes concentric suit with the tang structure of external rotor protection end cover, the screw rod passes external rotor protection end cover through-hole and becomes tightly to decide with the nut mode with stator protection end cover through-hole and adorns admittedly, stator protection end cover bearing room and bearing become concentric installation are passed to solid axle one end, the other end passes external rotor protection end cover bearing room and becomes concentric installation with the bearing, the solid axle system of wearing out the protection end cover outside of the axle body behind the concentric installation has the power output transmission and adorns the device admittedly, constitute one kind and accord with conventional internal rotor and the ann rule in industry comprehensively, and the exchange external rotor motor of the big power saving of moment.

Description

AC outer rotor motor

Technical Field

The utility model relates to a motor, especially an exchange external rotor motor.

Background

The power output transmission mode of the alternating current outer rotor motor in the prior art mainly takes an outer rotor shell as a power output transmission component, and a fan impeller cylinder and an electric vehicle wheel hoop are concentrically sleeved on the outer rotor shell or a connecting component is arranged on the outer rotor shell, so that the power output is transmitted to an actually used functional part. However, the conventional ac electric motors used in most industrial machines and household electrical appliances at present basically adopt the inner rotor solid shaft as the power output transmission member, compared with the ac outer rotor electric motor using the outer rotor shell as the power output transmission member in the prior art, the diameter of the power output transmission member is greatly different from the inner rotor solid shaft of the conventional ac electric motor, according to the same-gear electric motor, the diameter of the outer rotor shell is generally 7-10 times larger than that of the inner rotor solid shaft, which is equivalent to 20-30 times larger than the linear speed of the power output of the outer rotor shell, obviously, the ac outer rotor electric motor in the prior art is difficult to be compatibly popularized and applied in most household electrical appliances and industrial equipment, and needs to be improved; in addition, the alternating current outer rotor motor in the prior art has no motor shell, and only a one-dimensional limited installation mode of a machine leg fixing position can be arranged on one side of a stator protection end cover, compared with the conventional alternating current inner rotor motor which has both the motor shell and two end covers, the up-down, left-right, front-back multi-dimensional installation modes of the machine leg fixing position can be arranged at any position around the motor shell or outside the end covers at two sides, so that great difference exists, and the motor is difficult to adapt to various use occasions of the existing machine in the installation and use process; in addition, the alternating current outer rotor motor in the prior art has no motor shell protection on the whole structure, and has a protection end cover at one end of the outer rotor, so that the alternating current outer rotor motor is not in line with safety and running regulations in the industry of alternating current inner rotor motors, and the application range of the alternating current outer rotor motor in the motor industry is limited, which also needs to be improved.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an can be compatible at power take off transmission member diameter and conventional interchange inner rotor motor solid shaft, can be in installation use occasion and product reliability and conventional interchange inner rotor motor compatibility, accord with interchange inner rotor motor and trade ann rule, the big power saving of moment, and low in production cost exchanges outer rotor motor.

In order to solve the technical problem, the utility model discloses an alternating current external rotor motor includes reel motor casing, the stator coil assembly, the stator support, the stator coil assembly is with the concentric suit of stator support, the integrated system of stator support has the bearing room, stator protection end cover, tang structure and through-hole, the bearing is installed in the bearing room, reel motor casing one end becomes concentric suit with the tang structure of stator protection end cover, the other end of reel motor casing has external rotor protection end cover, external rotor protection end cover integrated system has tang structure and through-hole, the reel motor casing other end becomes concentric suit with the tang structure of external rotor protection end cover, the screw rod passes external rotor protection end cover through-hole and stator protection end cover through-hole, make external rotor protection end cover and stator protection end cover become the axial fastening solid dress with the stator protection end cover with the screw nut mode, solid shaft middle section is equipped with the external rotor that comprises silicon steel sheet and aluminium ring admittedly, solid shaft one end passes stator protection end cover bearing room and bearing and becomes concentric installation, the integrated system has the bearing room at the external rotor protection end cover, the solid shaft other end cover bearing passes through protection end cover room and becomes the concentric dress and becomes the concentric installation, the external wall of external side of protection of external wall of external protection, the solid shaft passes through the external power transmission at the reel motor casing, the solid shaft output device is at the solid shaft.

As a technical scheme that the solid shaft penetrates out of the outer side of the protective end cover, the solid shaft penetrates out of the outer side of the stator protective end cover, and a power output transmission fixing device is arranged on the solid shaft penetrating out of the outer side of the stator protective end cover; as another technical scheme that the solid shaft penetrates out of the outer side of the protective end cover, the solid shaft penetrates out of the outer side of the outer rotor protective end cover, and a power output transmission fixing device is arranged on the solid shaft penetrating out of the outer side of the outer rotor protective end cover.

Through the aforesaid the utility model discloses a relative prior art's of AC external rotor electric motor alternating-current external rotor electric motor has add the reel motor casing, and external rotor protection end cover integration system has the bearing room, and the indoor bearing of bearing installs the protection end cover outside of wearing out one end or both ends to solid axle, is provided with power take off transmission solid mounting device at the solid axle of wearing out the protection end cover outside, is provided with the machine foot at reel motor casing outer wall, has then overcome not enough that prior art exists, has gained following better technological effect:

1. the utility model discloses an exchange outer rotor motor's solid axle is the same with conventional interchange inner rotor motor solid axle, all be with solid axle as power take off transmission component, then the interchange outer rotor motor of prior art has been overcome, because of it uses outer rotor housing to be power take off transmission component, the diameter difference of its diameter size and the solid axle of conventional interchange inner rotor motor is too big, lead to the incompatible obstacle that is difficult to the application, can extensively be applicable to adopt and use conventional interchange inner rotor motor as the power supply, do the substitution in the each industry electromechanical device that provides solid axle type output power and adopt, therefore, the substitution range of application of interchange outer rotor motor has been enlarged, thereby it is big to gain wider moment, high efficiency, and the power saving effect.

2. Because the bearing chamber built-in bearing is manufactured on the outer rotor protection end cover, one end of the outer rotor solid shaft penetrates through the outer rotor protection end cover bearing chamber to be installed with the bearing, and the other end of the outer rotor solid shaft penetrates through the stator protection end cover bearing chamber to be installed with the bearing, the technical scheme that two bearings and two fulcrum sets are arranged at two ends of the solid shaft is formed, and therefore the defects that the whole motor is low in load and easy to drag edges due to the fact that the solid shaft of the alternating-current outer rotor motor in the prior art is sleeved by a single-end two-bearing single fulcrum cantilever, the effective load of the alternating-current outer rotor motor can be improved, dragging edge waste products are eliminated, production cost is reduced, and the substitution application range of the alternating-current outer rotor motor in heavy-load products is expanded;

3. compared with the alternating-current outer rotor motor in the prior art, the alternating-current outer rotor motor of the utility model is additionally provided with the reel motor shell and the outer rotor protection end cover on the basis that only the stator protection end cover is provided, the outer rotor protection end cover is integrally provided with the bearing chamber and the spigot structure, the pneumatic smoothness of the whole machine shell of the alternating-current outer rotor motor, the dustproof and moisture-proof sealing performance and the overall use reliability of the product can be improved, the defects that the alternating-current outer rotor motor in the prior art is poor in dustproof and moisture-proof sealing performance, easy to wet and easy to creep breakdown due to the fact that a structural gap is inevitably formed between the rotor aluminum ring and the stator protection end cover are overcome, and the alternating-current outer rotor motor is short in service life under a humid environment, and has better dustproof and moisture-proof performance and longer service life; meanwhile, after the winding drum motor shell and the outer rotor protection end cover are additionally arranged, a set of complete motor shell protection function is formed, so that the internal safety regulations and related row regulations of the alternating-current inner rotor motor are met, and the application range of the motor in the electromechanical industry is expanded.

4. The utility model discloses after the reel motor casing has been add to the external rotor motor that exchanges, can be at reel motor casing outer wall each position device undercarriage, relative prior art external rotor motor's undercarriage installation one-dimensional limitation, make the undercarriage of motor on installation direction and concrete solid dress structure, increased more installation position and more solid dress modes, the undercarriage of having overcome prior art external rotor motor that exchanges can only be at the use limitation of stator protection end cover side-mounting, thereby can all-roundly popularize and apply in the alternating current motor of current machine, ventilation equipment, each individual trade such as household electrical appliances.

5. The added winding drum motor shell adopts a thin plate cold machining forming process, so that a large amount of energy consumption and pollution generated in the high-temperature casting production process of cast iron and cast aluminum motor shells adopted by a conventional alternating current inner rotor motor are avoided, and the winding drum motor shell has the remarkable advantages of good environmental protection and low production cost, so that the diameter of a power output transmission component is compatible with that of the conventional alternating current inner rotor motor, the winding drum motor shell is compatible with the conventional alternating current inner rotor motor in the aspects of installation and use and product reliability, and the alternating current outer rotor motor is in line with the internal safety and regulations of the alternating current inner rotor motor, long in service life, electricity-saving, low in production cost and small in pollution.

Drawings

The present invention will be described in further detail with reference to the following drawings and detailed description:

fig. 1 is a longitudinal sectional view of an embodiment of an ac external rotor motor according to the present invention;

FIG. 2 is an exterior view of the embodiment of FIG. 1;

FIG. 3 is an exploded view of the embodiment of FIG. 1;

FIG. 4 is an exploded view of the embodiment of FIG. 1 in another orientation;

fig. 5 is a longitudinal sectional view of another embodiment of the ac external rotor motor of the present invention;

FIG. 6 is an external view of the embodiment of FIG. 5;

FIG. 7 is an exploded view of the embodiment of FIG. 5;

FIG. 8 is an exploded view of the embodiment of FIG. 5 in another orientation;

fig. 9 is an external view of still another embodiment of the ac external rotor motor of the present invention;

description of reference numerals:

1. a reel motor casing; 2. a stator coil assembly; 3. a stator support; 4. a bearing chamber; 5. a stator protection end cover; 6. a spigot structure; 7. a through hole; 8. a bearing; 9. an outer rotor protection end cover; 10. a spigot structure; 11. a through hole; 12. a screw; 13. a nut; 14. a solid shaft; 15. a silicon steel sheet; 16. an aluminum ring; 17. flattening; 18. a bearing chamber; 19. a bearing; 20. a pin key; 21. a chassis; 22. a machine leg; 23. a machine leg.

Detailed Description

An embodiment of the ac external rotor motor of the present invention will be described in detail below with reference to fig. 1 to 9.

Referring to fig. 1, 2, 3 and 4, an embodiment of the ac external rotor motor of the present invention includes a drum motor housing 1, a stator coil assembly 2, a stator support 3, the stator coil assembly 2 and the stator support 3 are concentrically sleeved, the stator support 3 is integrally formed with a bearing chamber 4, a stator protection end cap 5, a spigot structure 6 and a through hole 7, a bearing 8 is installed in the bearing chamber 4, one end of the drum motor housing 1 and the spigot structure 6 of the stator protection end cap 5 are concentrically sleeved, the other end of the drum motor housing 1 is provided with an external rotor protection end cap 9, the external rotor protection end cap 9 is integrally formed with a spigot structure 10 and a through hole 11, the other end of the drum motor housing 1 and the spigot structure 10 of the external rotor protection end cap 9 are concentrically sleeved, a screw 12 passes through the through hole 10 of the external rotor protection end cap 9 and the through hole 7 of the stator protection end cap 5, the external rotor protection end cap 9 and the stator protection end cap 5 are axially fastened and fixed by screwing a nut 13, a solid shaft 14, a middle section of the solid shaft 14 is fixedly provided with an external rotor 15 and an aluminum ring 16, one end of the solid shaft 14 passes through the bearing chamber 4 and the protection end cap 8, the bearing 5 and the solid shaft 5 passes through the outside the stator protection end cap 14, the stator protection end cap passes through the stator protection end cap 14 and the solid shaft is concentrically installed outside the stator protection end cap 14; a bearing chamber 18 is integrally formed on the outer rotor protection end cover 9, a bearing 19 is arranged in the bearing chamber 18, the other end of the solid shaft 14 penetrates through the bearing chamber 18 of the outer rotor protection end cover 9 and is concentrically installed with the bearing 19, the solid shaft 14 which is concentrically installed with the bearing 19 penetrates through the outer side of the outer rotor protection end cover 9, and a power output structure flat block 17 is arranged on the solid shaft 14 which penetrates out of the outer side of the outer rotor protection end cover 9; a seat type machine leg 21 is arranged in the middle of the outer wall of the winding drum motor casing 1.

Therefore, the alternating-current outer rotor motor which is provided with the flat blocks 17 of the power output structures at the two coaxial ends and the seat type machine feet 21 in the middle of the outer wall of the winding drum motor shell 1 is formed by penetrating the two ends of the solid shaft 14 out of the outer sides of the protective end covers, can be compatible and suitable for being used in electromechanical equipment which takes the solid shaft as a power source and the seat type machine feet as installation and use occasions and provides power output at the two ends or single end of the solid shaft instead of being adopted, and has the characteristic of wide application occasions.

Referring to fig. 5, 6, 7 and 8, another embodiment of the ac external rotor motor of the present invention has the same internal basic structure as that of the embodiment of fig. 1, except that the solid shaft 14 penetrating the outer side of the external rotor protection end cap 9 in the embodiment of fig. 5 is provided with a power output structure pin 20; 4 wall-mounted machine legs 22 are arranged on one side of the outer wall of the drum motor shell 1.

Therefore, the alternating-current outer rotor motor which is formed by penetrating a single end of the solid shaft 14 out of the outer rotor protection end cover 9, arranging the pin 20 of the single-end power output structure of the solid shaft 14 and arranging 4 wall-mounted machine legs 22 on one side of the outer wall of the drum motor shell 1 is compatible and suitable for being used as a power source and installed and used by taking the wall-mounted machine legs on one side, and has the advantages of stable operation and small noise.

Referring to fig. 9, the present invention provides another embodiment of an ac external rotor motor, the internal basic structure and single-ended power output structure of the motor of this embodiment are substantially the same as those of the embodiment of fig. 5, and the difference lies in that the 3 pairs of suspension type legs 23 of the embodiment of fig. 9 are radially disposed at the middle section of the outer wall of the drum motor casing 1, and are adapted to use a solid shaft as a power source, and installed at the inner wall of a pipeline in a suspension manner at the center of the motor, so as to provide a substitute for the ventilation equipment for outputting power.

To sum up, the utility model provides an exchange external rotor electric motor, its beneficial meaning lies in:

1. the production of the alternating-current outer rotor motor has been seventy years, and the outer rotor shell is used as a power output transmission component until now, the power output mode of the solid shaft of the alternating-current inner rotor motor is incompatible, and the problem of narrow application surface is formed.

2. The utility model discloses two fulcrum suit technical scheme in solid shaft both ends two bearings of AC external rotor motor's the proposition, the whole machine load that has overcome prior art AC external rotor motor's single-ended two bearings single fulcrum cantilever suit and has caused is low on the contrary, easily drags the weak point on limit, has eliminated and has dragged the limit waste product, has reduced manufacturing cost, has enlarged the substitution range of application of AC external rotor motor at heavy load product.

3. The utility model discloses the technical scheme that alternating current external rotor motor provided has add reel motor casing and external rotor protection end cover, has formed one set of complete machine protect function, and it is good to have dustproof dampproofing leakproofness, and the anti-creep electric breakdown is effectual, and anticollision performance is good, accords with alternating current motor's relevant interior drop test and the experimental standard of tide state to reached and accorded with alternating current internal rotor motor interior safety regulation and relevant row's regulation in industry, enlarged the application range of alternating current external rotor motor in whole electromechanical trade.

4. The utility model discloses exchange external rotor electric motor has set up the reel motor casing, then can set up the undercarriage and adorn the position admittedly in the motor casing all around or both sides end cover outside arbitrary position, the undercarriage that has overcome prior art exchange external rotor electric motor can only be in the use limitation of stator protection end cover side-mounting to can all-roundly use widely in the AC motor of each individual trade such as current machine, ventilation equipment, household electrical appliances.

5. The added winding drum motor shell adopts a sheet cold machining forming process, avoids a large amount of energy consumption and pollution generated in the high-temperature casting production process of cast iron and cast aluminum motor shells adopted by the conventional alternating-current inner rotor motor, has the remarkable advantages of material and power saving, low production cost and small pollution, and accords with the social development trend of energy conservation and emission reduction.

The AC outer rotor motor is compatible with a conventional AC inner rotor motor in a power output transmission component, is compatible with the conventional AC inner rotor motor in installation and use occasions and product reliability, conforms to the internal safety and regulation rules of the AC inner rotor motor, has long service life, large torque, electricity saving, low production cost and low pollution.

Claims (3)

1. The utility model provides an exchange external rotor electric motor, it includes reel motor casing, the stator coil assembly, the stator support, the stator coil assembly overlaps with the stator support is concentric, the stator support integration system has the bearing room, stator protection end cover, tang structure and through-hole, the bearing is installed to the bearing room, reel motor casing one end becomes concentric suit with the tang structure of stator protection end cover, the other end of reel motor casing has external rotor protection end cover, external rotor protection end cover integration system has tang structure and through-hole, the reel motor casing other end becomes concentric suit with the tang structure of external rotor protection end cover, the screw rod passes external rotor protection end cover through-hole and stator protection end cover through-hole, it makes external rotor protection end cover and stator protection end cover become axial fastening and fixity with the mode of twisting the nut, solid shaft, the solid shaft middle section is adorned with the external rotor that comprises silicon steel sheet and aluminium ring admittedly, solid shaft one end passes stator protection end cover bearing room and bearing and becomes concentric mounting, the utility model is characterized in that: the outer rotor protection end cover is integrally provided with a bearing chamber, a bearing is arranged in the bearing chamber, the other end of the solid shaft penetrates through the bearing chamber of the outer rotor protection end cover to be concentrically installed with the bearing, the solid shaft which is concentrically installed with the bearing penetrates out of the outer side of the protection end cover, and a power output transmission fixing device is arranged on the solid shaft which penetrates out of the outer side of the protection end cover.

2. The ac external rotor motor according to claim 1, wherein: the solid shaft penetrates out of the outer side of the protection end cover, the solid shaft penetrates out of the outer side of the stator protection end cover, and the solid shaft penetrating out of the outer side of the stator protection end cover is provided with a power output transmission fixing device.

3. The ac external rotor motor according to claim 1, wherein: the solid shaft penetrates out of the outer side of the protective end cover, the solid shaft penetrates out of the outer side of the outer rotor protective end cover, and the solid shaft penetrating out of the outer side of the outer rotor protective end cover is provided with a power output transmission fixing device.

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