CN216356269U

CN216356269U - Outer rotor write pole self-starting permanent magnet motor

Info

Publication number: CN216356269U
Application number: CN202123016627.0U
Authority: CN
Inventors: 吴凡; 许振东; 张华�; 张少文; 曹宏
Original assignee: Nanjing Hegong Power Technology Co ltd
Current assignee: Nanjing Hegong Power Technology Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-04-19
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses an outer rotor write pole self-starting permanent magnet motor which comprises a motor shaft main body, wherein a rotor shell is arranged on the outer side of the motor shaft main body, a stator is arranged on the outer wall of the motor shaft main body, a bearing is arranged on one side, located at the stator, of the outer wall of the motor shaft main body, a heat dissipation structure is arranged on one side, located at the position, far away from the stator, of the bearing, of the outer wall of the motor shaft main body, and heat dissipation holes are formed in the inner side of the rotor shell. According to the utility model, by arranging the tooth blocks, the gear ring, the fan blades, the rotating rod and the support frame, when the rotor shell rotates on the motor shaft main body through the bearing, the tooth blocks on the inner wall are meshed with the gear ring, so that the two sets of fan blades are driven by the gear ring to rotate on the support frame through the rotating rod, and further, when the fan blades rotate, hot air inside the rotor shell is driven to flow and flow out through the heat dissipation holes, so that the heat dissipation of the permanent magnet motor can be realized, and the problem of poor heat dissipation effect of the write pole permanent magnet motor is effectively solved.

Description

Outer rotor write pole self-starting permanent magnet motor

Technical Field

The utility model relates to the technical field of permanent magnet motors, in particular to an outer rotor write pole self-starting permanent magnet motor.

Background

The write pole permanent magnet synchronous motor is a novel high-performance permanent magnet synchronous motor, the write pole permanent magnet synchronous motor has unique write pole capability while inheriting various advantages of the permanent magnet synchronous motor, the number of pole pairs of the motor can be changed, the limit of fixing the number of pole pairs of the permanent magnet synchronous motor is broken through, the motor can meet working requirements under different working conditions, a cage type starting winding is arranged on a rotor of the write pole permanent magnet synchronous motor, the write pole permanent magnet synchronous motor has strong self-starting capability, the starting performance is an important advantage of the write pole permanent magnet synchronous motor and is a basis for carrying out comprehensive research on the write pole permanent magnet synchronous motor, and the write pole permanent magnet synchronous motor is mainly and industrially applied to fans, air blowers, conveyors, water pumps and any places needing continuous operation and instant starting of the motor.

At present, a rotor shell of an outer rotor write pole permanent magnet motor is a rotating part and is positioned outside the motor, a stator with large heat generation quantity is arranged inside, so that the heat dissipation condition of the motor is poor, and when the rotor shell rotates, the generated vibration is transmitted to a rotating shaft, so that the rotating shaft continuously vibrates, and the rotating shaft is easily damaged and loosened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that a write pole permanent magnet motor is poor in heat dissipation effect and a rotor shell vibrates to cause adverse effect on a rotating shaft, and provides an outer rotor write pole self-starting permanent magnet motor to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an external rotor write pole self-starting permanent magnet motor, includes the motor shaft main part, the outside of motor shaft main part is provided with rotor housing, and the outer wall of motor shaft main part is provided with the stator, one side that the outer wall of motor shaft main part is located the stator is provided with the bearing, and one side that the outer wall of motor shaft main part is located the bearing and keeps away from the stator is provided with heat radiation structure, rotor housing's inboard is provided with the louvre, and is provided with the spacing groove on the rotor housing, the inboard of spacing groove is provided with the movable rod, the one end of movable rod is provided with rotates the seat, the inboard of rotating the seat is provided with T type piece, the outside of T type piece is provided with the fly leaf, and one side of T type piece is provided with the spring.

Preferably, an end cover is arranged on the outer wall of the motor shaft main body and positioned on the inner side of the rotor shell, and the rotor shell is rotatably connected with the motor shaft main body through a bearing.

Preferably, heat radiation structure includes support frame, dwang, flabellum, toothed ring and tooth piece, and the outer wall of motor shaft main part is provided with the support frame, the inboard of support frame is provided with the dwang, the outer wall of dwang is provided with the flabellum, the outside of flabellum is provided with toothed ring, the inner wall that the outside of toothed ring is located rotor case is provided with the tooth piece.

Preferably, the gear ring passes through the tooth piece meshing with rotor case, the flabellum passes through the dwang with the support frame and rotates to be connected, and the quantity of flabellum is two sets of, the gear ring passes through bolt fixed connection with the flabellum.

Preferably, the inner sides of the movable plates are provided with pulleys, the number of the rotating seats is two, and the inner sides of the two rotating seats are provided with T-shaped blocks.

Preferably, the inboard of fly leaf and spacing groove all be provided with T type piece assorted dashpot, and the inboard of T type piece is provided with the ball, the spring welding is in the outer wall of T type piece, and the both sides of T type piece all are provided with the spring.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, by arranging the tooth blocks, the gear ring, the fan blades, the rotating rods and the support frame, when the rotor shell rotates on the motor shaft main body through the bearing, the tooth blocks on the inner wall are meshed with the gear ring, so that the two sets of fan blades are driven by the gear ring to rotate on the support frame through the rotating rods, and further, when the fan blades rotate, hot air flow on the inner side of the rotor shell is driven to flow and flow out through the heat dissipation holes, so that the permanent magnet motor can dissipate heat, and the problem of poor heat dissipation effect of the write pole permanent magnet motor is effectively solved;

2. by arranging the limiting groove, the movable rod, the T-shaped block, the movable plate and the spring, when the rotor shell rotates, the movable plate and the pulley on the inner side of the limit groove move on the outer wall of the main body of the motor shaft, the vibration force of the rotor shell enables the side of the limiting groove to vibrate and deflect, four groups of movable rods inside the limiting groove are supported by the rotating seats at the two ends to carry out retraction and release during deflection, and the T-shaped block at one end is driven during retraction and release, the springs are extruded in the buffer grooves at the inner sides of the movable plate and the limiting groove, the strong supporting force of the springs stretches the two T-shaped blocks to prevent the side of the limiting groove from colliding with the motor shaft main body when the distance between the two T-shaped blocks is larger, thereby prevented that rotor case's vibrations most from shifting to on the motor shaft main part, effectively solved rotor case vibrations and caused the problem of adverse effect to the axis of rotation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1 according to the present invention.

Fig. 3 is a schematic view of a heat dissipation structure of the present invention.

Fig. 4 is an enlarged view of B in fig. 3 according to the present invention.

FIG. 5 is a schematic view of a T-block of the present invention.

Fig. 6 is a schematic view of the spring of the present invention.

In the figure: 1. a motor shaft main body; 2. a stator; 3. an end cap; 4. a rotor housing; 5. a bearing; 6. a heat dissipation structure; 601. a support frame; 602. rotating the rod; 603. a fan blade; 604. a gear ring; 605. a tooth block; 7. heat dissipation holes; 8. a limiting groove; 9. a rotating seat; 10. a movable rod; 11. a T-shaped block; 12. a movable plate; 13. a buffer tank; 14. a spring; 15. a pulley.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an embodiment of an outer rotor write pole self-starting permanent magnet motor according to the present invention: the utility model provides an outer rotor write pole self-starting permanent magnet motor, including motor shaft main part 1, the outside of motor shaft main part 1 is provided with rotor housing 4, and the outer wall of motor shaft main part 1 is provided with stator 2, one side that the outer wall of motor shaft main part 1 is located stator 2 is provided with bearing 5, and one side that the outer wall of motor shaft main part 1 is located bearing 5 and keeps away from stator 2 is provided with heat radiation structure 6, the inboard of rotor housing 4 is provided with louvre 7, and be provided with spacing groove 8 on rotor housing 4, the inboard of spacing groove 8 is provided with movable rod 10, the one end of movable rod 10 is provided with rotates seat 9, the inboard of rotating seat 9 is provided with T type piece 11, the outside of T type piece 11 is provided with fly leaf 12, and one side of T type piece 11 is provided with spring 14.

The inboard that the outer wall of motor shaft main part 1 is located rotor housing 4 is provided with end cover 3, and rotor housing 4 and motor shaft main part 1 rotate through bearing 5 and be connected, and end cover 3 is used for sealing the protection to rotor housing 4 inboard, and rotor housing 4 passes through bearing 5 when the rotation on motor shaft main part 1 to drive other equipment and rotate.

Heat radiation structure 6 includes support frame 601, dwang 602, flabellum 603, gear ring 604 and tooth piece 605, and the outer wall of motor shaft main part 1 is provided with support frame 601, the inboard of support frame 601 is provided with dwang 602, the outer wall of dwang 602 is provided with flabellum 603, the outside of flabellum 603 is provided with gear ring 604, the inner wall that the outside of gear ring 604 is located rotor housing 4 is provided with tooth piece 605, rotor housing 4 is when passing through the rotation of bearing 5 on motor shaft main part 1, and tooth piece 605 of inner wall is through meshing with gear ring 604, thereby drive two sets of flabellums 603 through dwang 602 rotation on support frame 601 through gear ring 604, and then flabellum 603 is when rotating, drive the inboard hot gas flow of rotor housing 4, and flow through louvre 7.

Gear ring 604 passes through tooth piece 605 meshing with rotor housing 4, flabellum 603 passes through dwang 602 with support frame 601 and rotates and is connected, and the quantity of flabellum 603 is two sets of, gear ring 604 passes through bolt fixed connection with flabellum 603, rotor housing 4 passes through when bearing 5 rotates on motor shaft main part 1, and the tooth piece 605 of inner wall is through meshing with gear ring 604, thereby drive flabellum 603 through dwang 602 through gear ring 604 and rotate on support frame 601, and then two sets of flabellums 603 are when rotating, drive the inboard hot gas flow of rotor housing 4 and flow.

The inner sides of the movable plates 12 are provided with pulleys 15, the number of the rotating seats 9 is two, the inner sides of the two groups of rotating seats 9 are provided with T-shaped blocks 11, when the rotor shell 4 rotates, the movable plate 12 and the pulley 15 inside the limiting groove 8 move on the outer wall of the motor shaft main body 1, and during the moving process, the vibration force of the rotor shell 4 causes the side of the limiting groove 8 to vibrate and deflect, four groups of movable rods 10 inside the limiting groove 8 are supported by the rotating seats 9 at two ends to carry out retraction and release activities during deflection, and drive a T-shaped block 11 at one end in the retraction and release process, the spring 14 is pressed in the buffer grooves 13 on the inner side of the movable plate 12 and the inner side of the limiting groove 8, and the strong supporting force of the spring 14 stretches the two T-shaped blocks 11, so that the side of the limiting groove 8 is prevented from colliding with the motor shaft body 1 when the distance between the two T-shaped blocks is large, and most of the vibration of the rotor housing 4 is prevented from being transferred to the motor shaft body 1.

The inboard of fly leaf 12 and spacing groove 8 all is provided with the dashpot 13 with T type piece 11 assorted, and the inboard of T type piece 11 is provided with the ball, and spring 14 welds the outer wall at T type piece 11, and the both sides of T type piece 11 all are provided with spring 14, and T type piece 11 extrudees spring 14 in the dashpot 13 of fly leaf 12 inboard, and two T type pieces 11 are stretched to the powerful holding power of spring 14, and the ball is used for T type piece 11 to remove in dashpot 13.

The working principle is as follows: when the permanent magnet motor is used, a simple structure needs to be understood, firstly, as shown in fig. 1 and fig. 3-4, when the rotor housing 4 rotates on the motor shaft main body 1 through the bearing 5, and the tooth block 605 on the inner wall is meshed with the gear ring 604, so that the gear ring 604 drives the two sets of fan blades 603 to rotate on the support frame 601 through the rotating rod 602, and then the fan blades 603 drive hot air flow on the inner side of the rotor housing 4 to flow and flow out through the heat dissipation holes 7 when rotating, so that the permanent magnet motor can dissipate heat.

According to the fig. 1 and 5-6, when the rotor housing 4 rotates, the movable plate 12 and the pulley 15 inside the limiting groove 8 move on the outer wall of the motor shaft main body 1, during the movement, the vibration force of the rotor housing 4 causes the side of the limiting groove 8 to vibrate and deflect, when the deflection occurs, the four groups of movable rods 10 inside the limiting groove 8 are supported by the rotating seats 9 at two ends to perform retraction and release movement, and drive the T-shaped block 11 at one end during the retraction and release, the spring 14 is extruded in the buffer grooves 13 inside the movable plate 12 and the limiting groove 8, the strong supporting force of the spring 14 stretches the two T-shaped blocks 11, and the limiting groove 8 is prevented from colliding with the motor shaft main body 1 when the distance is large, so that most of the vibration of the rotor housing 4 is prevented from being transferred to the motor shaft main body 1.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an outer rotor write pole self-starting permanent magnet motor, includes motor shaft main part (1), its characterized in that: a rotor shell (4) is arranged on the outer side of the motor shaft main body (1), a stator (2) is arranged on the outer wall of the motor shaft main body (1), a bearing (5) is arranged on one side of the outer wall of the motor shaft main body (1) positioned on the stator (2), and the outer wall of the motor shaft main body (1) is provided with a heat dissipation structure (6) at one side of the bearing (5) far away from the stator (2), the inner side of the rotor shell (4) is provided with a heat dissipation hole (7), a limiting groove (8) is arranged on the rotor shell (4), a movable rod (10) is arranged on the inner side of the limiting groove (8), one end of the movable rod (10) is provided with a rotating seat (9), the inner side of the rotating seat (9) is provided with a T-shaped block (11), a movable plate (12) is arranged on the outer side of the T-shaped block (11), and a spring (14) is arranged on one side of the T-shaped block (11).

2. The outer rotor write pole self-starting permanent magnet motor of claim 1, wherein: the outer wall of the motor shaft main body (1) is located on the inner side of the rotor shell (4) and is provided with an end cover (3), and the rotor shell (4) is rotatably connected with the motor shaft main body (1) through a bearing (5).

3. The outer rotor write pole self-starting permanent magnet motor of claim 1, wherein: heat radiation structure (6) are including support frame (601), dwang (602), flabellum (603), ring gear (604) and tooth piece (605), and the outer wall of motor shaft main part (1) is provided with support frame (601), the inboard of support frame (601) is provided with dwang (602), the outer wall of dwang (602) is provided with flabellum (603), the outside of flabellum (603) is provided with ring gear (604), the inner wall that the outside of ring gear (604) is located rotor case (4) is provided with tooth piece (605).

4. The outer rotor write pole self-starting permanent magnet motor of claim 3, wherein: the fan blade support is characterized in that the gear ring (604) is meshed with the rotor shell (4) through a tooth block (605), the fan blades (603) are rotatably connected with the support frame (601) through rotating rods (602), the number of the fan blades (603) is two, and the gear ring (604) is fixedly connected with the fan blades (603) through bolts.

5. The outer rotor write pole self-starting permanent magnet motor of claim 1, wherein: the inner side of the movable plate (12) is provided with pulleys (15), the number of the rotating seats (9) is two, and the inner sides of the rotating seats (9) are provided with T-shaped blocks (11).

6. The outer rotor write pole self-starting permanent magnet motor of claim 1, wherein: the inboard of fly leaf (12) and spacing groove (8) all is provided with buffer slot (13) with T type piece (11) assorted, and the inboard of T type piece (11) is provided with the ball, spring (14) welding is in the outer wall of T type piece (11), and the both sides of T type piece (11) all are provided with spring (14).