CN219592201U

CN219592201U - Outer rotor motor

Info

Publication number: CN219592201U
Application number: CN202321325120.XU
Authority: CN
Inventors: 华思聪
Original assignee: Shengzhou Pentium Motor Co ltd
Current assignee: Shengzhou Pentium Motor Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-08-25
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses an outer rotor motor, which relates to the technical field of motors and has the technical scheme that: the motor comprises a plastic package body, a stator winding, a rotor and a rotating shaft, wherein the stator winding is arranged in the plastic package body, the rotating shaft penetrates through the plastic package body, the rotor is sleeved on the outer side of the stator winding and is connected with the rotating shaft, a shell is covered on the outer side of the rotor, a first through hole is formed in the shell, the rotating shaft penetrates through the first through hole, a first bearing chamber for installing a bearing is arranged on the shell, an opening of the first bearing chamber faces the rotor, a second bearing chamber for installing the bearing is arranged on the plastic package body, the first bearing chamber is arranged on the shell of the outer rotor motor, the second bearing chamber is arranged on the plastic package body, and when the outer rotor motor is assembled, two operators can simultaneously install the bearing on the first bearing chamber on the shell and the second bearing chamber on the plastic package body.

Description

Outer rotor motor

Technical Field

The utility model relates to the technical field of motors, in particular to an outer rotor motor.

Background

The Chinese patent with the bulletin number of CN218301047U discloses an outer rotor motor, which relates to the technical field of motors and has the technical scheme that: the plastic package structure comprises a plastic package body, a stator, a rotating shaft and an outer rotor, wherein the stator is arranged in the plastic package body, the rotating shaft penetrates through the stator to be connected with the outer rotor, the outer rotor is sleeved on the outer side of the stator, a plastic package end plate is arranged at the end part of the plastic package body, a plurality of positioning blocks are arranged on the outer side wall of the plastic package end plate, and the plurality of positioning blocks can be respectively clamped with a plurality of positioning grooves on a mounting base.

The technical scheme has the following defects: the first and second mounting cavities are formed in the plastic package body, and the first and second bearings are arranged in the first and second mounting cavities respectively.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide an external rotor motor which has the advantage of convenience in assembly.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides an external rotor motor, includes plastic envelope body, stator winding, rotor and pivot, stator winding set up in the plastic envelope body, the pivot wears to locate the plastic envelope body, the rotor cover is located stator winding's the outside and with the pivot is connected, the outside cover of rotor is equipped with the shell, offered through-hole one on the shell, the pivot wears to locate through-hole one, be provided with the bearing room one that is used for installing the bearing on the shell, the opening orientation of bearing room one the rotor, be provided with the bearing room two that are used for installing the bearing on the plastic envelope body.

Preferably, an annular protrusion is arranged on the inner side wall of the shell, and the annular protrusion is matched with the shell to form the first bearing chamber.

Preferably, the end face of the rotor is provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are uniformly distributed along the circumferential direction.

Preferably, the end part of the plastic package body is provided with a sealing part, and the sealing part is used for sealing the opening of the second bearing chamber.

Preferably, the sealing part is provided with a second through hole, and the rotating shaft penetrates through the second through hole.

Preferably, the plastic package body is provided with a plurality of positioning protrusions, and the positioning protrusions limit the shell.

Preferably, the plastic package body is provided with a wire clamp for fixing the electric wire.

Preferably, the plastic package body is provided with at least two supporting feet, the two supporting feet are symmetrically arranged, and the supporting feet are provided with a plurality of mounting holes.

Preferably, the first bearing chamber and the second bearing chamber are coaxially arranged.

Preferably, an annular groove is formed in the outer side wall of the shell, and the inner wall of the annular groove is attached to the surface of the positioning protrusion.

In summary, compared with the prior art, the utility model has the following beneficial effects:

1. the annular bulge is arranged on the inner side wall of the shell and matched with the shell to form the first bearing chamber, the second bearing chamber is arranged on the plastic package body, and when the outer rotor motor is assembled, two operators can simultaneously install the bearing on the first bearing chamber on the shell and the second bearing chamber on the plastic package body, so that the assembly is convenient and the assembly efficiency is high;

2. a plurality of radiating holes are formed in the end face of the rotor and are uniformly distributed along the circumferential direction, so that the radiating effect is improved;

3. the plastic package body is provided with a plurality of positioning bulges, the shell is limited by the positioning bulges, the stability of the shell is ensured, and the coaxiality of the first bearing chamber and the second bearing chamber is ensured.

Drawings

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a cross-sectional view of an embodiment;

FIG. 3 is a schematic view of the structure of the housing of the embodiment;

FIG. 4 is a schematic view of a part of the structure of an embodiment;

fig. 5 is a schematic view of a part of the structure at another angle in the embodiment.

Reference numerals: 1. a plastic package body; 2. a stator winding; 3. a rotor; 4. a rotating shaft; 5. a first through hole; 6. a housing; 7. a first bearing chamber; 8. a bearing chamber II; 9. an annular protrusion; 10. a heat radiation hole; 11. a sealing part; 12. a second through hole; 13. positioning the bulge; 14. a wire clamp; 15. supporting feet; 16. a mounting hole; 17. an annular groove; 18. a central bore.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The present utility model will be described in further detail with reference to the accompanying drawings.

An external rotor motor, as shown in fig. 1 to 5, comprises a plastic package body 1, a stator winding 2, a rotor 3 and a rotating shaft 4.

The stator winding 2 is arranged in the plastic package body 1, the plastic package body 1 and the stator winding 2 are molded in a plastic package mode, the rotating shaft 4 penetrates through the plastic package body 1, specifically, a central hole 18 is formed in the plastic package body 1 along the central axis, and the rotating shaft 4 penetrates through the central hole 18.

The rotor 3 is sleeved outside the stator winding 2 and connected with the rotating shaft 4, and a shell 6 is covered outside the rotor 3.

The shell 6 is provided with a first through hole 5, the first through hole 5 and the central hole 18 are coaxially arranged, and the rotating shaft 4 penetrates through the first through hole 5.

The housing 6 is provided with the first bearing chamber 7 for installing the bearing, and the opening of the first bearing chamber 7 faces the rotor 3, namely, the first bearing chamber 7 is sealed in the housing 6, so that the waterproof and dustproof effects are good.

Specifically, the inside wall of shell 6 is provided with annular protruding 9, and preferably, the inside wall of shell 6 extends towards the direction of rotor 3 and forms annular protruding 9, and shell 6 and annular protruding 9 integrated into one piece promptly, and convenient production, annular protruding 9 and shell 6 cooperate and form bearing room one 7, and bearing room one 7 and through-hole one 5 coaxial setting also can directly offer bearing room one 7 as other schemes in the inside wall of shell 6.

The plastic package body 1 is provided with a bearing chamber II 8 for installing a bearing, and the bearing chamber I7 and the bearing chamber II 8 are coaxially arranged.

It should be noted that, two operators can install the bearing in the first bearing chamber 7 on the housing 6 and the second bearing chamber 8 on the plastic package 1, and the two operators work simultaneously, so that the assembly efficiency is higher.

The end of the plastic package body 1 is provided with the sealing part 11, preferably, the sealing part 11 and the plastic package body 1 are integrally formed, the production is convenient, the sealing part 11 is used for sealing the opening of the bearing chamber II 8, the bearing chamber II 8 is sealed in the plastic package body 1 through the sealing part 11, and the waterproof and dustproof effects are good.

The sealing part 11 is provided with a second through hole 12, the rotating shaft 4 penetrates through the second through hole 12, and the second through hole 12 and the central hole 18 are coaxially arranged.

Be provided with a plurality of location arch 13 on the plastic envelope body 1, a plurality of location arch 13 is spacing to shell 6, and concrete, the lateral wall of shell 6 has seted up ring channel 17, and the inner wall of ring channel 17 laminates with the surface of location arch 13 mutually to this realizes spacing to shell 6, guarantees the stable position of shell 6, has also guaranteed the axiality of bearing room one 7 and bearing room two 8 simultaneously, and the relative position relation of operating personnel's also accessible ring channel 17 and location arch 13 judges whether shell 6 has already installed in place.

A plurality of heat dissipation holes 10 are formed in the end face of the rotor 3, heat is dissipated through the plurality of heat dissipation holes 10, and the plurality of heat dissipation holes 10 are evenly distributed along the circumferential direction, so that heat dissipation is more even, and the heat dissipation effect is better.

The plastic package body 1 is provided with the wire clamp 14 for fixing the electric wire, and the wire clamp 14 prevents the electric wire from being pulled by external force to cause falling.

Be provided with two at least supporting legs 15 on the plastic envelope body 1, two supporting legs 15 symmetry set up, and the supporting legs 15 that two symmetries set up make the external rotor 3 motor after installation more firm, have seted up a plurality of mounting hole 16 on the supporting legs 15, realize the fixed of external rotor 3 motor through a plurality of mounting hole 16 and fastener cooperation, the mounting means is simple reliable.

The foregoing is merely exemplary embodiments of the present utility model and is not intended to limit the scope of the utility model, which is defined by the appended claims.

Claims

1. An external rotor motor, characterized in that: including plastic envelope body (1), stator winding (2), rotor (3) and pivot (4), stator winding (2) set up in plastic envelope body (1), pivot (4) wear to locate plastic envelope body (1), rotor (3) cover are located the outside of stator winding (2) just with pivot (4) are connected, the outside cover of rotor (3) is equipped with shell (6), through-hole one (5) has been seted up on shell (6), pivot (4) wear to locate through-hole one (5), be provided with on shell (6) bearing room one (7) that are used for installing the bearing, the opening orientation of bearing room one (7) rotor (3), be provided with bearing room two (8) that are used for installing the bearing on plastic envelope body (1).

2. An external rotor motor according to claim 1, wherein: the inner side wall of the shell (6) is provided with an annular bulge (9), and the annular bulge (9) is matched with the shell (6) to form a bearing chamber I (7).

3. An external rotor motor according to claim 1, wherein: the end face of the rotor (3) is provided with a plurality of heat dissipation holes (10), and the heat dissipation holes (10) are uniformly distributed along the circumferential direction.

4. An external rotor motor according to claim 1, wherein: the end part of the plastic package body (1) is provided with a sealing part (11), and the sealing part (11) is used for sealing the opening of the second bearing chamber (8).

5. An external rotor motor as claimed in claim 4, wherein: and the sealing part (11) is provided with a second through hole (12), and the rotating shaft (4) is arranged through the second through hole (12).

6. An external rotor motor according to claim 1, wherein: the plastic package body (1) is provided with a plurality of positioning bulges (13), and the positioning bulges (13) limit the shell (6).

7. An external rotor motor according to claim 1, wherein: the plastic package body (1) is provided with a wire clamp (14) for fixing the electric wire.

8. An external rotor motor according to claim 1, wherein: at least two supporting feet (15) are arranged on the plastic package body (1), the two supporting feet (15) are symmetrically arranged, and a plurality of mounting holes (16) are formed in the supporting feet (15).

9. An external rotor motor according to claim 1, wherein: the first bearing chamber (7) and the second bearing chamber (8) are coaxially arranged.

10. An external rotor motor as claimed in claim 6, wherein: an annular groove (17) is formed in the outer side wall of the shell (6), and the inner wall of the annular groove (17) is attached to the surface of the positioning protrusion (13).