CN218997798U

CN218997798U - Outer rotor assembly and outer rotor motor

Info

Publication number: CN218997798U
Application number: CN202223478078.3U
Authority: CN
Inventors: 李发胜
Original assignee: Dayang Electric Wuhan Research Institute Co ltd
Current assignee: Dayang Electric Wuhan Research Institute Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-05-09
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses an outer rotor assembly and an outer rotor motor, which comprise a rotor shell, a plurality of magnetic shoes, a bracket, a plurality of magnetic shoes, a first annular ring, a second annular ring and a plurality of separating sheets, wherein the magnetic shoes are arranged on the inner wall surface of the sleeve shell, the magnetic shoes are arranged on the inner wall surface of the sleeve shell through the bracket and separated by the bracket, the bracket comprises the first annular ring, the second annular ring and the separating sheets arranged between the first annular ring and the second annular ring, each magnetic shoe is arranged between two adjacent separating sheets, a positioning step is arranged on the top of the inner wall surface of the sleeve shell, a plurality of annular clamping grooves are arranged on the bottom of the inner wall surface of the sleeve shell, clamping springs are clamped in the annular clamping grooves, the first annular ring of the bracket is abutted against the positioning step, the second annular ring of the bracket is abutted against the clamping springs, the magnetic shoes are fixed in the rotor shell through the bracket and are axially limited by the clamping springs and the positioning step, the absolute position of the magnetic shoes is ensured, viscose is not needed, the structural arrangement is reasonable, and the quality of the motor is ensured.

Description

Outer rotor assembly and outer rotor motor

Technical Field

The utility model relates to an outer rotor assembly and an outer rotor motor.

Background

The existing external rotor motor comprises a rotor assembly, a base and a stator assembly, wherein the stator assembly is arranged on the base, the external rotor assembly is sleeved outside the stator assembly, the rotor assembly comprises a rotor shell and a plurality of magnetic shoes, the rotor shell comprises a top plate and a sleeve shell extending from the edge of the top plate, a cavity is formed between the top plate and the sleeve shell, the plurality of magnetic shoes are arranged on the inner wall surface of the sleeve shell, the plurality of magnetic shoes are fixed on the inner wall surface of the sleeve shell through viscose, the requirements of complexity and quality control are very strict, if one index does not reach the standard or the operation requirement cannot be implemented according to the requirements, the magnetic shoes can be loosened or even fall, and the problem is fatal to the quality of the motor, so that the improvement is needed.

Disclosure of Invention

The utility model aims to provide an outer rotor assembly and an outer rotor motor, which solve the technical problems that in the prior art, a plurality of magnetic shoes are fixed on the inner wall surface of a sleeve shell through viscose glue, the requirements for quality control are complex, and if one index does not reach the standard or the operation requirement cannot be executed according to the requirement, the magnetic shoes are possibly loosened or even fall down.

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

the utility model provides an outer rotor assembly, which comprises a rotor shell and a plurality of magnetic shoes, wherein the rotor shell comprises a top plate and a sleeve shell extending from the edge of the top plate, a cavity is defined between the top plate and the sleeve shell, and the plurality of magnetic shoes are arranged on the inner wall surface of the sleeve shell, and the outer rotor assembly is characterized in that:

still include the support, a plurality of magnetic shoes pass through the mounting at the internal face of sleeve shell and are separated by the support, the support includes first annular circle, second annular circle and a plurality of spacers of setting between first annular circle and second annular circle, every magnetic shoe is arranged between two adjacent spacers, be equipped with the location step on the internal face top of sleeve shell, be equipped with a plurality of annular draw-in grooves on the internal face bottom of sleeve shell, the jump ring is equipped with to the card in the annular draw-in groove, the first annular circle of support supports on the location step, the second annular circle of support supports on the jump ring.

An annular waveform gasket is arranged between the first annular ring and the positioning step.

The sleeve shell is characterized in that a plurality of key grooves are circumferentially arranged on the inner wall surface of the sleeve shell at intervals, the key grooves are in one-to-one correspondence with the separating sheets of the support, the outer wall surfaces of the separating sheets are provided with convex keys in a protruding mode, and the convex keys are embedded into the key grooves.

The bracket and the magnetic shoes are integrally injection molded.

The first annular ring and the second annular ring are respectively provided with a plurality of first through holes and second through holes.

The opening of the sleeve shell is outwards provided with a flange, and the flange is provided with a plurality of mounting holes.

The rotor is characterized by further comprising a rotating shaft, a shaft hole is formed in the middle of the top plate, a shaft sleeve is arranged in the shaft hole, and the rotating shaft is connected with the rotor shell through the shaft sleeve.

The utility model provides an external rotor motor, includes external rotor subassembly, base and stator module, and stator module installs at the base, and external rotor subassembly suit is outside stator module, its characterized in that: the outer rotor assembly is the outer rotor assembly.

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

1. the utility model comprises a rotor shell and a plurality of magnetic shoes, wherein the rotor shell comprises a top plate and a sleeve shell extending from the edge of the top plate, a cavity is formed between the top plate and the sleeve shell, the plurality of magnetic shoes are arranged on the inner wall surface of the sleeve shell, the rotor shell further comprises a support, the plurality of magnetic shoes are arranged on the inner wall surface of the sleeve shell through the support and separated by the support, the support comprises a first annular ring, a second annular ring and a plurality of separating sheets arranged between the first annular ring and the second annular ring, each magnetic shoe is arranged between two adjacent separating sheets, a positioning step is arranged on the top of the inner wall surface of the sleeve shell, a plurality of annular clamping grooves are formed in the bottom of the inner wall surface of the sleeve shell, clamping springs are clamped in the annular clamping grooves, the first annular ring of the support is propped against the positioning step, the second annular ring of the support is propped against the clamping springs, the magnetic shoes are fixed in the rotor shell through the support and are axially limited through the clamping springs and the positioning step, the absolute position of the magnetic shoes is ensured, the adhesive is not required, the structural arrangement is reasonable, and the quality of a motor is ensured.

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 a first embodiment of the present utility model;

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

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

FIG. 4 is an exploded view of a bracket and a magnetic shoe according to a first embodiment of the present utility model;

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

FIG. 9 is a cross-sectional view of C-C of FIG. 8;

fig. 10 is a partial enlarged view of D in fig. 9.

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 10, the present embodiment provides an outer rotor assembly, which comprises a rotor housing 1 and a plurality of magnetic shoes 2, wherein the rotor housing 1 comprises a top plate 11 and a sleeve housing 12 extending from the edge of the top plate 11, a cavity 10 is defined between the top plate 11 and the sleeve housing 12, and the plurality of magnetic shoes 2 are mounted on the inner wall surface of the sleeve housing 12, and is characterized in that:

still include support 3, a plurality of magnetic shoes 2 are installed at the internal face of sleeve shell 12 through support 3 and are separated by support 3, support 3 includes first annular ring 31, second annular ring 32 and sets up a plurality of spacers 33 between first annular ring 31 and second annular ring 32, every magnetic shoe 2 is arranged between two adjacent spacers 33, be equipped with location step 121 on the internal face top of sleeve shell 12, be equipped with a plurality of annular draw-in grooves 122 on the internal face bottom of sleeve shell 12, the jump ring 123 is equipped with to the card in the annular draw-in groove 122, the first annular ring 31 of support 3 supports on location step 121, the second annular ring 32 of support 3 supports on jump ring 123, fix the magnetic shoe in the rotor shell through the support and through the axial spacing of jump ring and location step, guarantee the absolute position of magnetic shoe, and can not loosen, need not the viscose, structural arrangement is reasonable, guarantee motor quality.

An annular wave washer 4 is disposed between the first annular ring 31 and the positioning step 121, and the annular wave washer 4 is used for preventing the support from loosening.

The above-mentioned sleeve shell 12's internal face circumference interval is provided with a plurality of keyway 124, and a plurality of keyway 124 are the one-to-one with a plurality of separation piece 33 of support 3, and protruding key 331 is gone up to the outer wall of separation piece 33, and protruding key 331 imbeds in the keyway 124, effectively prevents support circumference rotation, and structural arrangement is reasonable, and the location is effectual.

The bracket 3 and the magnetic shoes 2 are integrally injection molded, and the manufacture is convenient.

The first annular ring 31 and the second annular ring 32 are respectively provided with a plurality of first through holes 311 and second through holes 321, so that the weight of the bracket is reduced, and the structural arrangement is reasonable.

The opening of the sleeve shell 12 is outwards extended to form a flange 125, and a plurality of mounting holes 126 are formed in the flange 125, so that the sleeve is convenient to mount and is reasonable in structural arrangement.

The rotor comprises a rotating shaft (not shown in the figure), a shaft hole 111 is arranged in the middle of the top plate 11, a shaft sleeve 112 is arranged in the shaft hole 111, and the rotating shaft (not shown in the figure) is connected with the rotor shell 1 through the shaft sleeve 112.

Embodiment two:

the utility model provides an external rotor motor, includes external rotor subassembly, base and stator module, and stator module installs at the base, and external rotor subassembly suit is outside stator module, its characterized in that: the outer rotor assembly is the outer rotor assembly according to the first embodiment.

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 subassembly, includes rotor housing (1) and a plurality of magnetic shoe (2), and rotor housing (1) include roof (11) and sleeve shell (12) that extend from roof (11) edge, enclose into a cavity (10) between roof (11) and sleeve shell (12), and a plurality of magnetic shoe (2) are installed on the internal face of sleeve shell (12), its characterized in that:

still include support (3), a plurality of magnetic shoe (2) are installed at the internal face of sleeve shell (12) through support (3) and are separated by support (3), support (3) include first annular ring (31), second annular ring (32) and set up a plurality of separation piece (33) between first annular ring (31) and second annular ring (32), every magnetic shoe (2) are arranged between two adjacent separation piece (33), be equipped with location step (121) on the internal face top of sleeve shell (12), be equipped with a plurality of annular draw-in grooves (122) on the internal face bottom of sleeve shell (12), clamp spring (123) are equipped with to the card in annular draw-in groove (122), first annular ring (31) of support (3) support are supported on location step (121), second annular ring (32) of support (3) support on clamp spring (123).

2. An outer rotor assembly as claimed in claim 1, wherein: an annular waveform gasket (4) is arranged between the first annular ring (31) and the positioning step (121).

3. An outer rotor assembly as claimed in claim 2, wherein: a plurality of key grooves (124) are circumferentially arranged on the inner wall surface of the sleeve shell (12) at intervals, the key grooves (124) are in one-to-one correspondence with a plurality of separation sheets (33) of the support (3), convex keys (331) are protruded on the outer wall surface of the separation sheets (33), and the convex keys (331) are embedded into the key grooves (124).

4. An outer rotor assembly according to claim 1 or 2 or 3, wherein: the bracket (3) and the magnetic shoes (2) are integrally injection molded.

5. An outer rotor assembly as set forth in claim 4 wherein: a plurality of first through holes (311) and second through holes (321) are respectively arranged on the first annular ring (31) and the second annular ring (32).

6. An outer rotor assembly as set forth in claim 5 wherein: a flange (125) is outwards extended from the opening of the sleeve shell (12), and a plurality of mounting holes (126) are formed in the flange (125).

7. An outer rotor assembly as set forth in claim 6 wherein: the motor rotor is characterized by further comprising a rotating shaft, wherein a shaft hole (111) is formed in the middle of the top plate (11), a shaft sleeve (112) is arranged in the shaft hole (111), and the rotating shaft is connected with the rotor shell (1) through the shaft sleeve (112).

8. The utility model provides an external rotor motor, includes external rotor subassembly, base and stator module, and stator module installs at the base, and external rotor subassembly suit is outside stator module, its characterized in that: the outer rotor assembly is an outer rotor assembly according to any one of the preceding claims 1 to 7.