CN205901469U - An outer rotor assembly and an outer rotor motor using the same - Google Patents

Abstract

The utility model discloses an external rotor component, include casing, pivot and install a plurality of magnetic shoe at casing inner wall, the magnetic shoe passes through the support mounting and is in casing inner wall, the support is including installing the support body of chassis bottom and setting a plurality of installed part on the support body, the magnetic shoe is installed between two adjacent installed parts, the installed part include first installation piece and second installation piece, first installation piece and second installation piece are protruding from the terminal surface axial of support body, form the buffering cavity between first installation piece and second installation piece, the magnetic shoe is installed when two adjacent installed parts, the buffering cavity can be better block the magnetic shoe, prevents that the magnetic shoe pine from taking off, and is fixed effectual, assembly easy operation. The utility model also discloses an external rotor electric machine including this external rotor subassembly.

Description

An outer rotor assembly and an outer rotor motor using the same

Technical field:

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

Background technique:

The existing outer rotor assembly includes a casing, a rotating shaft and several magnetic tiles installed on the inner wall of the casing. The magnetic tiles are stretched and fixed by shrapnel, and the shrapnel is installed separately between two adjacent magnetic tiles. Due to the large number of shrapnel, the installation position of the shrapnel is not easy to control during the installation process, sometimes it will be on the upper side or If it is too low, it may exceed the working surface of the magnetic tile. The installation process is cumbersome, and the fixing effect of the magnetic tile is not good, which may cause the motor to fail easily when it is running.

Invention content:

The purpose of the utility model is to provide an outer rotor assembly, the magnetic tile is installed in the casing through a bracket, the assembly operation is simple, and the fixing effect is good.

The purpose of this utility model is achieved through the following technical solutions.

An outer rotor assembly, including a casing, a rotating shaft, and several magnetic tiles installed on the inner wall of the casing, the magnetic tiles are installed on the inner wall of the casing through a bracket, and it is characterized in that: the bracket includes a The frame body and several mounting parts arranged on the frame body, the magnetic tiles are installed between two adjacent mounting parts, the mounting parts include a first mounting piece and a second mounting piece, the first mounting piece and the The second mounting piece protrudes axially from the end face of the frame body, and a buffer cavity is formed between the first mounting piece and the second mounting piece.

The tops of the first mounting piece and the second mounting piece are connected by a wedge-shaped connecting portion.

Positioning posts are arranged on both sides of the mounting part, and the positioning posts are against the outer surface of the magnetic tile to limit the outward movement of the magnetic tile.

The connecting piece is arranged between the first mounting piece and the second installing piece, the connecting piece is located on a side close to the rotating shaft, and the positioning posts protrude from both sides of the connecting piece.

The first mounting piece and the second mounting piece are provided with axial reinforcing ribs, and the reinforcing ribs are against the side surfaces of the magnetic tiles.

The frame body includes an inner ring part and an outer ring part, a number of radial first ribs are arranged between the inner ring part and the outer ring part, and the mounting parts are distributed on the outer ring part.

The plurality of first ribs are evenly distributed.

The bottom of the inner ring part is provided with a drainage groove between two adjacent second ribs, and the top of the casing is provided with a drainage hole through which dripping water flows out.

The bottom of the outer ring part is provided with an annular boss.

An external rotor motor includes an external rotor assembly and a stator assembly, the external rotor assembly is sleeved on the stator assembly, and the external rotor assembly is the above-mentioned external rotor assembly.

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

1) The bracket includes a frame body installed at the bottom of the casing and several mounting parts arranged on the frame body, the magnetic tiles are installed between two adjacent mounting parts, and the mounting parts include a first mounting piece and the second installation piece, the first installation piece and the second installation piece axially protrude from the end face of the frame body, a buffer cavity is formed between the first installation piece and the second installation piece, and the magnetic tiles are installed on two adjacent When installing parts, the buffer cavity can better hold the magnetic tile, prevent the magnetic tile from loosening, the fixing effect is good, and the assembly operation is simple;

2) The tops of the first mounting piece and the second mounting piece are connected by a wedge-shaped connection part, and the wedge-shaped connection part acts as a guide to facilitate the installation of the magnetic tile and strengthen the structural effect;

3) positioning posts are arranged on both sides of the mounting part, and the positioning posts are against the outer surface of the magnetic tile to limit the outward movement of the magnetic tile. The positioning post can better fix the magnetic tile and prevent the magnetic tile from moving outward;

4) The frame body includes an inner ring part and an outer ring part. A number of radial first ribs are arranged between the inner ring part and the outer ring part. The mounting parts are distributed on the outer ring part. The first ribs are similar to centrifugal wind The leaves, when rotating, the first rib can stir the airflow and improve the heat dissipation effect;

5) The bottom of the inner ring part is provided with a drainage groove between two adjacent second ribs, and the drainage groove allows dripping water to flow through each other to prevent water accumulation.

Description of drawings:

Fig. 1 is a three-dimensional schematic view of the outer rotor assembly of Embodiment 1;

Fig. 2 is the front view of the outer rotor assembly of Embodiment 1;

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the B-B sectional view of Fig. 2;

Fig. 5 is a three-dimensional schematic view of the bracket in the outer rotor assembly of Embodiment 1;

Fig. 6 is a perspective view showing another angle of the bracket in the outer rotor assembly of the first embodiment.

detailed description:

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

Embodiment one:

As shown in Figures 1 to 4, this embodiment is an outer rotor assembly, including a casing 1, a rotating shaft 2, and several magnetic tiles 3 installed on the inner wall of the casing 1, and the magnetic tiles 3 are installed on the inner wall of the casing 1 through a bracket 4. The inner wall of the casing 1 is characterized in that: the bracket 4 includes a frame body 42 installed on the bottom of the casing 1 and several mounting parts 41 arranged on the frame body 42, and the magnetic tiles 3 are installed on two adjacent Between the mounting pieces 41, the mounting piece 41 includes a first mounting piece 411 and a second mounting piece 412, the first mounting piece 411 and the second mounting piece 412 axially protrude from the end face of the frame body 42, and are positioned at the first A buffer cavity 426 is formed between the mounting piece 411 and the second mounting piece 412 .

The tops of the first mounting piece 411 and the second mounting piece 412 are connected by a wedge-shaped connecting portion 413 .

Positioning posts 43 are arranged on both sides of the mounting part 41 , and the positioning posts 43 abut against the outer surface of the magnetic tile 3 to limit the outward movement of the magnetic tile 3 .

The connection piece 414 is disposed between the first installation piece 411 and the second installation piece 412 , the connection piece 414 is located on a side close to the rotating shaft, and the positioning posts 43 protrude from both sides of the connection piece 414 .

The first mounting piece 411 and the second mounting piece 412 are provided with axial reinforcing ribs 44 , and the reinforcing ribs 44 are against the side surfaces of the magnetic tile 3 .

The frame body 42 includes an inner ring part 421 and an outer ring part 422 , a plurality of radial first ribs 423 are arranged between the inner ring part 421 and the outer ring part 422 , and the mounting parts 41 are distributed on the outer ring part 422 .

The plurality of first ribs 423 are evenly distributed.

The bottom of the inner ring part 421 is provided with a drainage groove 424 between two adjacent second ribs 4211 , and the top of the casing 1 is provided with a drainage hole 11 through which dripping water flows out.

An annular boss 425 is disposed at the bottom of the outer ring portion 422 .

Embodiment two:

An external rotor motor, including an external rotor assembly (not shown in the figure) and a stator assembly (not shown in the figure), the external rotor assembly is sleeved on the stator assembly, and the external rotor assembly is according to the embodiment A said outer rotor assembly.

Invention principle: the bracket 4 includes a frame body 42 installed at the bottom of the casing 1 and several mounting parts 41 arranged on the frame body 42, the magnetic tile 3 is installed between two adjacent mounting parts 41, the The mounting piece 41 includes a first mounting piece 411 and a second mounting piece 412, the first mounting piece 411 and the second mounting piece 412 protrude axially from the end face of the frame body 42, and the first mounting piece 411 and the second mounting piece A buffer cavity 426 is formed between 412. When the magnetic tile 3 is installed on two adjacent mounting parts 41, the buffer cavity 426 can better hold the magnetic tile 3 and prevent the magnetic tile 3 from loosening. The fixing effect is good and the assembly The operation is simple; the tops of the first mounting piece 411 and the second mounting piece 412 are connected by a wedge-shaped connection part 413, and the wedge-shaped connection part 413 acts as a guide to facilitate the installation of the magnetic tile 3 and strengthen the structure; the two mounting parts 41 The positioning column 43 is arranged on the side, and the positioning column 43 is against the outer surface of the magnetic tile 3 to limit the outward movement of the magnetic tile 3. The positioning column 43 can better fix the magnetic tile 3 and prevent the magnetic tile 3 from moving outward; The body 42 includes an inner ring part 421 and an outer ring part 422, and a plurality of radial first ribs 423 are arranged between the inner ring part 421 and the outer ring part 422. The mounting parts 41 are distributed on the outer ring part 422, and the first ribs 423 is similar to the centrifugal fan blade, the first rib 423 can stir the airflow when rotating, and improve the heat dissipation effect; the bottom of the inner ring part 421 is provided with a drainage groove 424 between two adjacent second ribs 4211, and the drainage groove 424 Allows dripping water to flow through each other and prevents stagnant water.

The above embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention are equivalent All replacement methods are included within the protection scope of the present invention.

Claims (10)

1. a kind of outer rotor component, including casing (1), rotating shaft (2) and several magnetic shoes (3) being arranged on casing (1) inwall, institute State magnetic shoe (3) described casing (1) inwall is arranged on by support (4) it is characterised in that: described support (4) includes being arranged on machine The support body (42) of shell (1) bottom and be arranged on upper several installed parts (41) of support body (42), described magnetic shoe (3) is arranged on adjacent two Between individual installed part (41), described installed part (41) includes the first installation sheet (411) and the second installation sheet (412), the first peace Load (411) and the second installation sheet (412) end face axial projection from support body (42), in the first installation sheet (411) and the second peace Form buffer cavity (426) between load (412).

2. a kind of outer rotor component according to claim 1 it is characterised in that: described the first installation sheet (411) and Two installation sheets (412) top is coupled together by wedge shape connecting portion (413).

3. a kind of outer rotor component according to claim 1 and 2 it is characterised in that: the setting of described installed part (41) both sides Locating dowel (43), the outer surface that locating dowel (43) props up described magnetic shoe (3) is moved outward with limiting described magnetic shoe (3).

4. a kind of outer rotor component according to claim 3 it is characterised in that: the first installation sheet (411) and second installation The connection sheet (414) of setting between piece (412), connection sheet (414) is located at the side near rotating shaft, and locating dowel (43) is from connection The both sides of piece (414) are stretched out.

5. a kind of outer rotor component according to claim 3 it is characterised in that: described first installation sheet (411) and described Second installation sheet (412) is provided with shaft orientation reinforcing rib (44), and described reinforcement (44) props up the side of described magnetic shoe (3).

6. a kind of outer rotor component according to claim 3 it is characterised in that: described support body (42) includes internal ring portion (421) and outer portion (422), it is provided with some radial first ribs (423) between internal ring portion (421) and outer portion (422), Installed part (41) is distributed in outer portion (422).

7. a kind of outer rotor component according to claim 6 it is characterised in that: described some first ribs (423) are uniformly Distribution.

8. a kind of outer rotor component according to claim 6 it is characterised in that: described internal ring portion (421) bottom is in adjacent It is provided with rhone (424), casing (1) top is provided with osculum (11), drips from osculum between two the second ribs (4211) Flow out.

9. a kind of outer rotor component according to claim 6 it is characterised in that: described outer portion (422) bottom is provided with one Annular boss (425).

10. a kind of external rotor electric machine, including outer rotor component and stator module, described outer rotor component is enclosed within described stator module Upper it is characterised in that: described outer rotor component is the outer rotor component according to claim 1 to claim 9.