CN219322184U

CN219322184U - Outer rotor motor

Info

Publication number: CN219322184U
Application number: CN202320013676.9U
Authority: CN
Inventors: 吴春山; 何锦豪
Original assignee: Zhongshan Broad Ocean Motor Co Ltd
Current assignee: Zhongshan Broad Ocean Motor Co Ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-07-07
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses an outer rotor motor, which comprises an outer rotor assembly, a stator assembly and an end cover, wherein a water dripping hole is formed in the end face of a base, an inner water retaining ring and an outer water retaining ring are protruded on the end face of an aluminum ring, a first retaining ring and a second retaining ring are protruded at the end part of a sleeve part, the top of the outer water retaining ring is embedded into the second water retaining groove, the bottom of the second retaining ring is embedded into the first water retaining groove, a plurality of water draining holes are formed in the outer water retaining ring and are all arranged with the first water retaining groove and the second water retaining groove, the problem that condensed water generated in the motor during hoisting can not be drained is effectively solved by adding the water dripping hole structure, in addition, the condensed water generated in the motor can be drained from the water draining holes when the motor is horizontally installed by adding the water draining hole structure, the structure is simple, the waterproof effect of different installation modes of the outer rotor motor is met, high protection level is achieved without special processing, and the outer rotor motor has high practicability.

Description

Outer rotor motor

Technical Field

The utility model relates to an external rotor motor.

Background

The existing outer rotor motor comprises an outer rotor assembly, a stator assembly and an end cover, wherein the end cover comprises an end plate and a sleeve part protruding axially from the edge of the end plate, the center of the end plate is provided with a sleeve seat in a protruding mode, the stator assembly is sleeved outside the sleeve seat, the outer rotor assembly is sleeved outside the stator assembly, the outer rotor assembly comprises a base, an outer rotor iron core and an aluminum ring, the base and the aluminum ring are respectively arranged on two end faces of the outer rotor iron core, in order to prevent rainwater or dust from entering the motor in the outdoor use process, a waterproof structure is arranged between the end cover and the outer rotor assembly, the waterproof structure has the waterproof and dustproof effects between the outer rotor assembly and the end cover, however, when the motor is installed in a hoisting mode, condensed water inside the motor cannot be discharged outside the motor, water accumulation is caused, so that the motor is invalid, the reliability of a product is reduced, the installation in a hoisting or horizontal or vertical mode cannot be met, the protection grade is low, and the practicability is low.

Disclosure of Invention

The utility model aims to provide an outer rotor motor, which solves the technical problems that in the prior art, although a waterproof structure solves the waterproof and dustproof effects between an outer rotor assembly and an end cover, when the motor is installed in a hoisting mode, condensed water in the motor cannot be discharged out of the motor, so that accumulated water is generated, the motor is invalid, the reliability of a product is reduced, the installation in a hoisting mode or a horizontal or vertical mode cannot be simultaneously met, the protection grade is low, and the practicability is low.

The technical scheme of the utility model is realized as follows:

the utility model provides an outer rotor motor, which comprises an outer rotor component, a stator component and an end cover, wherein the end cover comprises an end plate and a sleeve part axially protruding from the edge of the end plate, a sleeve seat is protruded from the center of the end plate, the stator component is sleeved outside the sleeve seat, the outer rotor component is sleeved outside the stator component, the outer rotor component comprises a base, an outer rotor iron core and an aluminum ring, and the base and the aluminum ring are respectively arranged on two end surfaces of the outer rotor iron core, and the outer rotor motor is characterized in that:

the end face of the base is provided with a water dripping hole, the end face of the aluminum ring is provided with an inner water retaining ring and an outer water retaining ring in a protruding mode, a first water retaining groove is formed between the inner water retaining ring and the outer water retaining ring, the end portion of the sleeve part is provided with a first retaining ring and a second retaining ring in a protruding mode, a second water retaining groove is formed between the first retaining ring and the second retaining ring, the top of the outer water retaining ring is embedded into the second water retaining groove, the bottom of the second retaining ring is embedded into the first water retaining groove, a plurality of water outlets are formed in the outer water retaining ring, and the water outlets are communicated with the first water retaining groove.

The groove top surface of the second water blocking groove is inclined from inside to outside and downwards.

The height L1 of the inner water baffle ring is higher than the height L2 of the outer water baffle ring.

The height L3 of the first retainer ring is higher than the height L4 of the second retainer ring.

The top surface of the second water blocking groove is provided with a plurality of drain holes which are communicated with the second water blocking groove.

The end plate is provided with a blind hole for being installed with a load.

The base, the outer rotor iron core and the aluminum ring are integrally formed through die casting.

The end plate, the sleeve part and the sleeve seat are integrally formed by die casting.

Compared with the prior art, the utility model has the following advantages:

1. the utility model comprises an outer rotor component, a stator component and an end cover, wherein the end cover comprises an end plate and a sleeve part axially protruding from the edge of the end plate, a sleeve seat is protruded from the center of the end plate, the stator component is sleeved outside the sleeve seat, the outer rotor component is sleeved outside the stator component, the outer rotor component comprises a base, an outer rotor iron core and an aluminum ring, and the base and the aluminum ring are respectively arranged on two end surfaces of the outer rotor iron core, and the utility model is characterized in that: the end face of the base is provided with a water dripping hole, the end face of the aluminum ring is provided with an inner water retaining ring and an outer water retaining ring in a protruding mode, a first water retaining groove is formed between the inner water retaining ring and the outer water retaining ring, a first retaining ring and a second retaining ring are arranged on the end portion of the sleeve portion in a protruding mode, a second water retaining groove is formed between the first retaining ring and the second retaining ring, the top of the outer water retaining ring is embedded into the second water retaining groove, the bottom of the second retaining ring is embedded into the first water retaining groove, the outer water retaining ring is provided with a plurality of water outlets, the water outlets are communicated with the first water retaining groove, through the arrangement of the water dripping hole, the problem that condensed water generated inside when the motor is hoisted cannot be discharged is effectively solved, in addition, the condensed water generated inside the motor can be discharged from the water outlets through the structure of the water outlets when the water outlets are increased, the problem of the motor is effectively solved, the waterproof effect of different mounting modes of the outer rotor motor is met, a high protection level is achieved without special processing, and the waterproof structure is high in practicability.

2. Other advantages of the present utility model are described in detail in the description of the embodiments.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is another perspective view of the present utility model;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is another angular exploded view provided by the present utility model;

FIG. 5 is a top view of the present utility model;

FIG. 6 is a cross-sectional view of A-A of FIG. 5;

FIG. 7 is an enlarged view of a portion of B in FIG. 6;

FIG. 8 is a schematic diagram of the structure provided by the present utility model;

FIG. 9 is a schematic view of another embodiment of the present utility model;

FIG. 10 is a bottom view of the present utility model;

FIG. 11 is a cross-sectional view of C-C of FIG. 10;

FIG. 12 is an enlarged view of part of D of FIG. 11;

FIG. 13 is another bottom view provided by the present utility model;

FIG. 14 is a cross-sectional view of E-E of FIG. 13;

fig. 15 is a partial enlarged view of F in fig. 14.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

as shown in fig. 1 to 15, the present embodiment provides an external rotor motor, which comprises an external rotor assembly 1, a stator assembly 2 and an end cover 3, wherein the end cover 3 comprises an end plate 31 and a sleeve portion 32 protruding axially from the edge of the end plate 31, a sleeve seat 33 protrudes from the center of the end plate 31, the stator assembly 2 is sleeved outside the sleeve seat 33, the external rotor assembly 1 is sleeved outside the stator assembly, the external rotor assembly 1 comprises a base 11, an external rotor core 12 and an aluminum ring 13, and the base 11 and the aluminum ring 13 are respectively arranged on two end surfaces of the external rotor core 12, and the external rotor motor is characterized in that:

fig. 6 shows a lifting mode, fig. 7 shows a horizontal installation mode, the end face of the base 11 is provided with a water dripping hole 111, an inner water retaining ring 131 and an outer water retaining ring 132 are protruded on the end face of the aluminum ring 13, a first water retaining groove 133 is formed between the inner water retaining ring 131 and the outer water retaining ring 132, a first retaining ring 321 and a second retaining ring 322 are protruded on the end portion of the sleeve portion 32, a second water retaining groove 323 is formed between the first retaining ring 321 and the second retaining ring 322, the top of the outer water retaining ring 132 is embedded into the second water retaining groove 323, the bottom of the second retaining ring 322 is embedded into the first water retaining groove 133, a plurality of water draining holes 1321 are formed in the outer water retaining ring 132, the water draining holes 1321 are communicated with the first water retaining groove 133, the problem that condensate water produced in the motor during lifting can be effectively solved, in addition, when the motor is in horizontal installation, the water draining problem of the motor is solved, the condensed water produced in the motor is not required from the water draining holes through the water draining holes by adding the water draining holes, the structure is simple in structure, the water-proof effect of different installation modes of the outer rotor motor is met, the special processing technology is achieved, and high protection level is achieved.

The groove top surface 3231 of the second water blocking groove 323 is inclined from inside to outside, when the outer rotor motor is horizontally installed, the groove top surface 3231 of the second water blocking groove 323 is beneficial to flowing out entered rainwater or dust to the notch of the second water blocking groove 323, and is discharged to the outside of the outer rotor motor, and the structure is reasonable.

As shown in fig. 9, the inner water-retaining ring 131 has a height L1 higher than the height L2 of the outer water-retaining ring 132, and is reasonable in structural arrangement, and the water does not enter the motor when exceeding the inner water-retaining ring, so that the waterproof and dustproof effects are good.

As shown in fig. 8, the height L3 of the first retaining ring 321 is higher than the height L4 of the second retaining ring 322, which has reasonable structural arrangement and good waterproof and dustproof effects.

As shown in fig. 14, the groove top surface 3231 of the second water blocking groove 323 is provided with a plurality of drain holes 3232, the drain holes 3232 are communicated with the second water blocking groove 323, when the outer rotor motor is vertically installed, and the end cover is positioned at the bottom, the entered rainwater or dust is discharged from the drain holes 3232 of the second water blocking groove 323 to the outside of the outer rotor motor, and the structure arrangement is reasonable.

The end plate 31 is provided with a blind hole 311 for installing the load, and the structure is reasonable in arrangement and convenient to install.

The base 11, the outer rotor core 12 and the aluminum ring 13 are integrally formed by die casting, and the manufacture is convenient.

The end plate 31, the sleeve portion 32 and the sleeve seat 33 are integrally die-cast, and are convenient to manufacture.

The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present utility model are included in the scope of the present utility model.

Claims

1. The utility model provides an external rotor motor, including external rotor subassembly (1), stator subassembly (2) and end cover (3), end cover (3) include end plate (31) and follow the bellied sleeve portion (32) in border axial of end plate (31), the central protrusion of end plate (31) has sleeve seat (33), stator subassembly (2) suit is in sleeve seat (33) outside, external rotor subassembly (1) suit is in the stator subassembly outside, external rotor subassembly (1) include base (11), external rotor core (12) and aluminium ring (13), both ends face that external rotor core (12) were located respectively to base (11) and aluminium ring (13), its characterized in that:

be equipped with on the terminal surface of base (11) drip hole (111), the protrusion has interior manger plate circle (131) and outer manger plate circle (132) on the terminal surface of aluminium ring (13), form first manger plate groove (133) between interior manger plate circle (131) and the outer manger plate circle (132), the tip protrusion of sleeve portion (32) has first retaining ring (321) and second retaining ring (322), form second manger plate groove (323) between first retaining ring (321) and second retaining ring (322), the top embedding of outer manger plate circle (132) is to the inside of second manger plate groove (323), the bottom embedding of second retaining ring (322) is inside of first manger plate groove (133), be equipped with a plurality of outlet (1321) on outer manger plate circle (132), outlet (1321) and first manger plate groove (133) intercommunication.

2. An external rotor motor according to claim 1, wherein: the groove top surface (3231) of the second water blocking groove (323) is inclined from inside to outside.

3. An external rotor motor according to claim 2, wherein: the height L1 of the inner water retaining ring (131) is higher than the height L2 of the outer water retaining ring (132).

4. An external rotor motor according to claim 3, characterized in that: the height L3 of the first check ring (321) is higher than the height L4 of the second check ring (322).

5. An external rotor motor according to claim 1 or 2 or 3 or 4, characterized in that: the groove top surface (3231) of the second water blocking groove (323) is provided with a plurality of drain holes (3232), and the drain holes (3232) are communicated with the second water blocking groove (323).

6. An external rotor motor as claimed in claim 5, wherein: the end plate (31) is provided with a blind hole (311) for being mounted with a load.

7. An external rotor motor as claimed in claim 6, wherein: the base (11), the outer rotor core (12) and the aluminum ring (13) are integrally die-cast.

8. An external rotor motor as claimed in claim 7, wherein: the end plate (31), the sleeve portion (32) and the sleeve seat (33) are integrally die-cast.