CN115102349A

CN115102349A - Motor body structure

Info

Publication number: CN115102349A
Application number: CN202210724754.6A
Authority: CN
Inventors: 屈家发
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-09-23

Abstract

A motor body structure comprises a cylindrical stator frame, wherein a plurality of coil slots for placing coils are arranged on the surface of the stator frame, an inner rotor and an outer rotor are respectively arranged on the inner side and the outer side of the stator frame, and gaps are arranged between the inner rotor and the stator frame and between the outer rotor and the stator frame; the inner rotor comprises an inner rotor frame, and a plurality of first magnetic core grooves for placing inner rotor magnetic cores are formed in the surface of the inner rotor frame; the outer rotor comprises an outer rotor frame, and a second magnetic core groove for placing an outer rotor magnetic core is formed in the surface of the outer rotor frame; and a first wire outlet hole for a coil to be led out is formed in the side wall of the right side of the stator frame, and the first wire outlet hole is communicated with the coil groove. The invention provides a motor body structure which can improve the electromagnetic utilization rate and is convenient to overhaul and replace.

Description

Motor body structure

Technical Field

The invention relates to the technical field of motors, in particular to a motor body structure.

Background

Most of the existing motors only use a pair of magnetic poles, and the magnetic force is lost due to the long magnetic loop, so that the power utilization rate cannot achieve the ideal effect; meanwhile, since the magnetic field magnetizes the iron core, electromagnetic power is required, and the electromagnetic force generates loss. And because the direction of the alternating current is changed, the magnetic pole is frequently changed, and when the magnetic pole is changed each time, a part of electromagnetic force is consumed, so that the utilization rate of the motor is reduced. In addition, when a conventional motor is short-circuited, all coils must be removed, which increases the maintenance cost and expense.

Disclosure of Invention

The invention aims to provide a motor body structure which can improve the electromagnetic utilization rate and is convenient to overhaul and replace.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a motor body structure comprises a cylindrical stator frame, wherein a plurality of coil slots for placing coils are arranged on the surface of the stator frame, an inner rotor and an outer rotor are respectively arranged on the inner side and the outer side of the stator frame, and gaps are arranged between the inner rotor and the stator frame and between the outer rotor and the stator frame;

the inner rotor comprises an inner rotor frame, and a plurality of first magnetic core grooves for placing inner rotor magnetic cores are formed in the surface of the inner rotor frame; the outer rotor comprises an outer rotor frame, and a second magnetic core groove for placing an outer rotor magnetic core is formed in the surface of the outer rotor frame;

and a first wire outlet hole for coil wire outlet is formed in the side wall on the right side of the stator frame, and the first wire outlet hole is communicated to the coil groove.

Preferably, the inner rotor further comprises an inner rotor cylinder, and the inner rotor cylinder is fixedly sleeved on the inner side of the inner rotor frame; the outer rotor also comprises an outer rotor barrel, and the outer side of the outer rotor frame is fixedly sleeved with the outer rotor barrel.

Preferably, the stator further comprises an inner protecting tube and an outer protecting tube which are fixedly sleeved on the inner side and the outer side of the stator frame.

Preferably, two ends of the stator, the inner rotor and the outer rotor are respectively detachably and fixedly connected with a stator disc, an inner rotor disc and an outer rotor disc;

the rotating shaft penetrates into the stator frame from the left side of the device and is rotatably connected to the inner side of the right stator disc, the outer side of the right stator disc is fixedly connected with a fixed shaft, and the fixed shaft penetrates through the right outer rotor disc; two inner rotor dish detachable and pivot fixed connection, left stator dish rotates with the pivot to be connected, left outer rotor dish detachable and pivot fixed connection, and the outer rotor dish on right side rotates with the dead axle to be connected.

Preferably, an axial channel is arranged in the fixed shaft, the fixed shaft further comprises a second wire outlet hole, one end of the second wire outlet hole is connected with the channel, and the other end of the second wire outlet hole is communicated with a cavity formed by the right stator disc and the right outer rotor disc.

Preferably, the outer rotor structure also comprises a shell, the shell is sleeved outside the outer rotor, bases are arranged on two sides of the shell, and the rotating shaft penetrates through the left base and is rotatably connected with the left base; the dead axle passes the base on right side, detachable and right side base fixed connection.

Preferably, the inner sides of the left base, the left stator disc and the right stator disc are rotationally connected with the rotating shaft through bearings, and the right outer rotor disc is rotationally connected with the fixed shaft through bearings;

the left outer rotor disc, the left inner rotor disc and the right inner rotor disc are fixedly connected with the rotating shaft in a key groove matching flat key mode, and the right base is fixedly connected with the fixed shaft in a key groove matching flat key mode.

Preferably, the rotating shaft is provided with a plurality of annular clamping grooves for limiting the base, the inner rotor disc and the outer rotor disc, and clamping rings are inserted into the annular clamping grooves for limiting the base, the inner rotor disc and the outer rotor disc.

Preferably, the two bases are fixedly connected through a screw.

Preferably, the left end of the rotating shaft is connected with an output part, and the output part is provided with a key slot for being connected with other equipment.

The invention provides a motor body structure, which has the following beneficial effects:

1. the distance of a magnetic field loop is shortened, the utilization rate of an electromagnetic field is increased, and the power utilization rate is improved.

2. The electromagnetic force is fully utilized, the electromagnetic force and the magnetic core are fully attracted and repelled, the effect that 1+1 is approximately equal to 2 is achieved, and the permanent magnet fully applies work.

3. The magnetic force in the electromagnetic field consumed by the iron core is reduced, and the electromagnetic force is totally attracted and repelled with the permanent magnet.

4, because there is no iron core, make the magnetic field change and have no resistance, improved on the rotational speed, in the aspect of maintenance, if the coil has appeared the short circuit or has appeared other trouble, only need to tear down the trouble and come out, change to be intact, reduced the maintenance cost utmost point repair expense.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic diagram of the sleeving structure of the inner rotor, the stator and the outer rotor according to the present invention;

FIG. 3 is a cross-sectional view of the interior of the present invention;

FIG. 4 is a schematic illustration of an explosive structure according to the present invention;

FIG. 5 is a schematic view of a snap ring according to the present invention;

FIG. 6 is a schematic view of the exterior of the present invention;

FIG. 7 is a schematic diagram of the polarity of the front side of the coil of the present invention;

fig. 8 is a schematic view of the polarity of the reverse side of the coil of the present invention.

Detailed Description

As shown in fig. 1-4, a motor body structure comprises a cylindrical stator frame 1, wherein a plurality of coil slots 2 for placing coils are arranged on the surface of the stator frame 1, an inner rotor and an outer rotor are respectively arranged on the inner side and the outer side of the stator frame 1, and gaps are arranged between the inner rotor and the outer rotor and the stator frame 1;

the inner rotor comprises an inner rotor frame 3, and a plurality of first magnetic core grooves 4 for placing inner rotor magnetic cores are formed in the surface of the inner rotor frame 3; the outer rotor comprises an outer rotor frame 5, and a second magnetic core groove 6 for placing an outer rotor magnetic core is formed in the surface of the outer rotor frame 5;

and a first wire outlet hole 7 for coil wire outlet is formed in the side wall of the right side of the stator frame 1, and the first wire outlet hole 7 is communicated to the coil groove 2.

Preferably, the inner rotor further comprises an inner rotor cylinder 8, and the inner rotor cylinder 8 is fixedly sleeved on the inner side of the inner rotor frame 3; the outer rotor also comprises an outer rotor barrel 9, and the outer rotor barrel 9 is fixedly sleeved on the outer side of the outer rotor frame 5.

Preferably, the stator further includes an inner cylinder 24 and an outer cylinder 25 fixedly sleeved on the inner side and the outer side of the stator frame 1.

Preferably, two ends of the stator, the inner rotor and the outer rotor are respectively detachably and fixedly connected with a stator disc 10, an inner rotor disc 11 and an outer rotor disc 12;

the device further comprises a rotating shaft 14, wherein the rotating shaft 14 penetrates into the stator frame 1 from the left side of the device and is rotatably connected to the inner side of the right stator disc 10, a fixed shaft 13 is fixedly connected to the outer side of the right stator disc 10, and the fixed shaft 13 penetrates through the right outer rotor disc 12; the two inner rotor disks 11 are detachably and fixedly connected with a rotating shaft 14, the left stator disk 10 is rotatably connected with the rotating shaft 14, the left outer rotor disk 12 is detachably and fixedly connected with the rotating shaft 14, and the right outer rotor disk 12 is rotatably connected with a fixed shaft 13.

Preferably, an axial channel 15 is arranged in the fixed shaft 13, and the fixed shaft further includes a second wire outlet hole 16, one end of the second wire outlet hole 16 is connected to the channel 15, and the other end of the second wire outlet hole 16 is communicated with a cavity formed by the right stator disc 10 and the right outer rotor disc 12. The outgoing line of the coil passes through the first outgoing line hole 7, the second outgoing line hole 16 and the channel 15 and is led out of the device. The outgoing line is not influenced by the rotation of the inner rotor and the outer rotor.

Preferably, the rotor further comprises a shell 17, the shell 17 is sleeved outside the outer rotor, bases 18 are arranged on two sides of the shell 17, and the rotating shaft 14 penetrates through the left base 18 and is rotatably connected with the left base 18; the fixed shaft 13 penetrates through the right base 18 and is detachably and fixedly connected with the right base 18.

Preferably, the inner sides of the left base 18, the left stator disc 10 and the right stator disc 10 are rotatably connected to the rotating shaft 14 through a bearing 19, and the right outer rotor disc 12 is rotatably connected to the fixed shaft 13 through a bearing 19;

the left outer rotor disc 12, the left inner rotor disc 11 and the right inner rotor disc 11 are fixedly connected with the rotating shaft 14 in a mode that the key grooves 20 are matched with flat keys, and the right base 18 is fixedly connected with the fixed shaft 13 in a mode that the key grooves 20 are matched with the flat keys.

Preferably, the rotating shaft 14 is provided with a plurality of annular clamping grooves 21 for limiting the base 18, the inner rotor disc 11 and the outer rotor disc 12, and a clamping ring is inserted into the annular clamping grooves 21 to limit the base 18, the inner rotor disc 11 and the outer rotor disc 12.

Preferably, the two bases 18 are fastened together by screws 22.

Preferably, the left end of the rotating shaft 14 is connected to an output portion 23, and the output portion 23 is provided with a key slot 20 for connecting with other equipment.

Preferably, the stator frame 1, the inner protective cylinder 24 and the outer protective cylinder 25 on the inner side and the outer side are made of non-magnetic materials.

Preferably, if the number of the coils is N, the number of the magnetic cores of the inner rotor and the number of the magnetic cores of the outer rotor are 2N.

As shown in fig. 7 and 8, which are schematic diagrams of the polarities of the front and back sides of the coil, the electromagnetic poles on the front and back sides can fully generate the effect of repelling and attracting with the inner and outer rotors, thereby achieving the maximum utilization of the electromagnetic force.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and includes equivalents of technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. An electric motor body structure characterized in that: the stator comprises a cylindrical stator frame (1), wherein a plurality of coil slots (2) for placing coils are formed in the surface of the stator frame (1), an inner rotor and an outer rotor are respectively arranged on the inner side and the outer side of the stator frame (1), and gaps are formed between the inner rotor and the outer rotor and the stator frame (1);

the inner rotor comprises an inner rotor frame (3), and a plurality of first magnetic core grooves (4) for placing inner rotor magnetic cores are formed in the surface of the inner rotor frame (3); the outer rotor comprises an outer rotor frame (5), and a second magnetic core groove (6) for placing an outer rotor magnetic core is formed in the surface of the outer rotor frame (5);

and a first wire outlet hole (7) for coil wire outlet is formed in the side wall of the right side of the stator frame (1), and the first wire outlet hole (7) is communicated to the coil slot (2).

2. A motor block structure as claimed in claim 1, wherein: the inner rotor also comprises an inner rotor cylinder (8), and the inner rotor cylinder (8) is fixedly sleeved on the inner side of the inner rotor frame (3); the outer rotor also comprises an outer rotor barrel (9), and the outer rotor barrel (9) is fixedly sleeved on the outer side of the outer rotor frame (5).

3. An electric motor body structure according to claim 1 or 2, characterized in that: the stator further comprises an inner protecting cylinder (24) and an outer protecting cylinder (25) which are fixedly sleeved on the inner side and the outer side of the stator frame (1).

4. A motor housing structure according to claim 3, wherein: two ends of the stator, the inner rotor and the outer rotor are respectively detachably and fixedly connected with a stator disc (10), an inner rotor disc (11) and an outer rotor disc (12);

the device is characterized by further comprising a rotating shaft (14), wherein the rotating shaft (14) penetrates into the stator frame (1) from the left side of the device and is rotatably connected to the inner side of the right stator disc (10), the outer side of the right stator disc (10) is fixedly connected with a fixed shaft (13), and the fixed shaft (13) penetrates through the right outer rotor disc (12); the two inner rotor discs (11) are detachably and fixedly connected with the rotating shaft (14), the left stator disc (10) is rotatably connected with the rotating shaft (14), the left outer rotor disc (12) is detachably and fixedly connected with the rotating shaft (14), and the right outer rotor disc (12) is rotatably connected with the fixed shaft (13).

5. An electric motor body structure as claimed in claim 4, wherein: the stator disc rotor comprises a fixed shaft (13) and is characterized in that an axial channel (15) is arranged in the fixed shaft (13), the stator disc rotor further comprises a second wire outlet hole (16), one end of the second wire outlet hole (16) is connected with the channel (15), and the other end of the second wire outlet hole is communicated with a cavity formed by the stator disc (10) on the right side and the outer rotor disc (12) on the right side.

6. An electric motor body structure as claimed in claim 5, wherein: the outer rotor is sleeved with the shell (17), the two sides of the shell (17) are provided with bases (18), and the rotating shaft (14) penetrates through the base (18) on the left side and is rotatably connected with the base (18) on the left side; the dead axle (13) passes through the base (18) on the right side and is detachably and fixedly connected with the base (18) on the right side.

7. An electric motor body structure as claimed in claim 6, wherein: the inner sides of the left base (18), the left stator disc (10) and the right stator disc (10) are rotationally connected with the rotating shaft (14) through a bearing (19), and the right outer rotor disc (12) is rotationally connected with the fixed shaft (13) through the bearing (19);

the left outer rotor disc (12), the left inner rotor disc (11) and the right inner rotor disc (11) are fixedly connected with the rotating shaft (14) in a mode that key grooves (20) are matched with flat keys, and the right base (18) is fixedly connected with the fixed shaft (13) in a mode that the key grooves (20) are matched with the flat keys.

8. An electric motor body structure as claimed in claim 7, wherein: the rotating shaft (14) is provided with a plurality of annular clamping grooves (21) used for limiting the base (18), the inner rotor disc (11) and the outer rotor disc (12), and clamping rings are inserted into the annular clamping grooves (21) to limit the base (18), the inner rotor disc (11) and the outer rotor disc (12).

9. An electric motor body structure as claimed in claim 6, wherein: the two bases (18) are fixedly connected through a screw (22).

10. An electric motor body structure as claimed in claim 4, wherein: the left end of pivot (14) is connected with output portion (23), is equipped with keyway (20) on output portion (23) for be connected with other equipment.