CN213213224U

CN213213224U - AC motor structure of external rotating fan

Info

Publication number: CN213213224U
Application number: CN202022525372.XU
Authority: CN
Inventors: 曾长安
Original assignee: Guangdong Shunde Yian Motor Co ltd
Current assignee: Guangdong Shunde Yian Motor Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-05-14
Anticipated expiration: 2030-11-05

Abstract

The utility model relates to the technical field of electric machines, a fan AC motor structure of abversion is specifically disclosed. Casing terminal surface middle part is inside sunken formation frustum portion, and the side leanin of frustum portion forms the frustum cover, the frustum cover is close to stator core's one end and rolls over to frustum portion terminal surface center and press and form the beaded finish, and the beaded finish is parallel with frustum portion terminal surface, and the beaded finish inboard is inlayed together with the pivot of fixing at casing terminal surface middle part, and the position of inlaying is equipped with the annular flange that is used for fixed pivot one end, and the annular flange is protruding to the opposite direction with the frustum portion is inside sunken, and the pivot passes through the bearing rotation for the other end of annular flange and sets up on the bearing support seat. The motor shell is formed by adopting a sheet metal process, and the connecting part of the motor shell and the rotating shaft is strengthened by the frustum part, so that the concentricity of the rotating shaft is ensured. The use of the male die and the fixed disk on the bearing support seat improves the assembly efficiency and further meets the requirement of high production efficiency in seasons with large fan capacity demand.

Description

AC motor structure of external rotating fan

Technical Field

The utility model relates to the technical field of electric machines, concretely relates to fan AC motor structure of abversion.

Background

With the continuous development of motor technology towards personal consumer products, the market demands for small, light and simple motors are increasing. In the prior art, the motor shell is generally made of full cast aluminum, is large in size and difficult to machine, is connected with the rotating shaft through direct cast aluminum, and is not provided with an intermediate transition piece. In the using process, the concentricity of the rotating shaft cannot be ensured because the aluminum ratio is softer, and the use of the product is easy to cause problems. In seasons with high fan capacity demand, the existing motor production mode cannot meet the requirement of high production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an abversion fan AC motor structure solves the product problem and the production mode that current motor casing exists and can not satisfy high production efficiency's requirement.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an outer fan AC motor structure that rotates, includes stator core, casing and pivot, stator core nestification is on the bearing support seat, casing terminal surface middle part is inside sunken formation frustum portion, the side leanin of frustum portion forms the frustum cover, the frustum cover is close to stator core's one end and rolls over to frustum portion terminal surface center and press and form the beaded finish, the beaded finish is parallel with frustum portion terminal surface, and the beaded finish inboard is inlayed together with the pivot of fixing at casing terminal surface middle part, and inlayed position is equipped with the annular flange that is used for fixed pivot one end, annular flange is protruding to the opposite direction with the frustum portion is inside sunken, and the pivot passes through the bearing rotation for the other end of annular flange and sets up on the bearing support seat.

Preferably, the casing is formed by a sheet metal process.

Preferably, the bearing support seat is provided with a limiting male die for fixing the stator core, the middle part of the end face of the stator core is provided with a first through hole, the inner wall of the first through hole is provided with a first limiting female die corresponding to the limiting male die, and the stator core is embedded in the middle part of the bearing support seat through the first limiting female die.

Preferably, the two ends of the stator core are provided with fixed disks for fixing the stator core, the fixed disks are provided with round tubes relative to the middle part of one end of the stator core, the inner walls of the round tubes are provided with second limiting female dies corresponding to the limiting male dies, and the fixed disks are nested at the two ends of the bearing support seat through the second limiting female dies.

Preferably, the fixed disk is close to stator core's one end middle part and is equipped with the screens arch, be equipped with around the first through-hole in stator core middle part with the protruding corresponding second through-hole of screens, the stator core is run through to second through-hole axial, the fixed disk is fixed in the stator core both ends through the screens arch.

Preferably, the bearing support seat comprises a bearing seat, and the round pipe on the fixed disk is abutted against one end face, close to the stator core, of the bearing seat.

Preferably, the side surface of the bearing seat is provided with positioning holes for being connected with an external component, and the positioning holes are uniformly distributed on the side surface of the bearing seat along the circumferential direction.

The beneficial effects of the utility model are that, motor housing adopts panel beating processing technology, and the frustum portion of formation has strengthened the position of being connected of casing and pivot, has guaranteed the concentricity of pivot. Not only improves the production efficiency, but also reduces the product volume, and the product is not easy to have problems in the using process. The use of the male die and the fixed disk clamping structure on the bearing support seat improves the assembly efficiency and further meets the requirement of high production efficiency in seasons with large fan capacity demand.

Drawings

Fig. 1 and 2 are connection diagrams of an iron shell and a rotating shaft in an embodiment of the present invention;

FIG. 3 is a perspective view of a bearing support base according to an embodiment of the present invention;

fig. 4 is a perspective view of a stator core in an embodiment of the present invention;

fig. 5 and 6 are perspective views of the fixing plate in the embodiment of the present invention;

fig. 7 is a cross-sectional view of an electric machine in an embodiment of the invention;

fig. 8 is an exploded view of the motor in the embodiment of the present invention.

In the figure, 1, a stator core, 11, a first through hole, 12, a second through hole, 13, a first limiting concave die, 2, a rotating shaft, 3, a machine shell, 31, a frustum part, 311, a frustum cover, 312, a reinforcing ring, 313, an annular flange, 4, a bearing supporting seat, 41, a limiting convex die, 42, a bearing seat, 43, a positioning hole, 5, a fixed disc, 51, a circular tube, 511, a second limiting concave die and 52, a clamping protrusion are arranged.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description of the present invention with reference to the accompanying drawings and embodiments is made.

In fig. 1, 2, and 7, the ac motor structure of the external-rotation fan in this embodiment includes a stator core 1, a casing 3, and a rotating shaft 2, where the stator core 1 is nested on a bearing support 4, a middle portion of an end surface of the casing 3 is recessed inward to form a frustum portion 31, and a side surface of the frustum portion 31 is inclined inward to form a frustum cover 311. One end of the frustum cover 311 close to the stator core 1 is folded and pressed towards the center of the end face of the frustum portion 31 to form a reinforcing ring 312, the reinforcing ring 312 is parallel to the end face of the frustum portion 31, the inner side of the reinforcing ring 312 is embedded with the rotating shaft 2 fixed in the middle of the end face of the machine shell 3, an annular flange 313 used for fixing one end of the rotating shaft 2 is arranged at the embedded position, and the annular flange 313 protrudes towards the direction opposite to the inward concave direction of the frustum portion 31. The other end of the rotating shaft 2 opposite to the annular flange 313 is rotatably arranged on the bearing support seat 4 through a bearing.

The shell 3 is formed by adopting a sheet metal process, so that the connecting part of the shell 3 and the rotating shaft 2 is strengthened, and the concentricity of the rotating shaft 2 is ensured; the design of the frustum cover 311 ensures that the stress of the rotor is more uniform in the rotating process and the rotation of the rotating shaft 2 is more stable; the annular flange 313 reinforces the connection between the housing 3 and the rotating shaft 2, further reducing the shaking of the housing 3.

In fig. 3 and 4, four limiting male dies 41 for fixing the stator core 1 are arranged on the bearing support 4, and there are three short limiting male dies 41 and one long limiting male die 41 axially distributed along the bearing support 4 in total, one end of each of the three short limiting male dies and one long limiting male die abuts against one end of the bearing seat 42, and the three short limiting male dies 41 and the one long limiting male dies are designed to facilitate the assembly of the fixed disk 5 and the stator core 1 on the bearing support 4 in the later production. The middle part of the end face of the stator core 1 is provided with a first through hole 11, the inner wall of the first through hole 11 is provided with a first limiting female die 13 corresponding to the limiting male die 41, the first limiting female die 13 is clamped with the long limiting male die 41, and the stator core 1 is embedded in the middle of the bearing support seat 4.

In fig. 5, the two ends of the stator core 1 are provided with the fixed disks 5 for fixing the stator core 1, the middle part of one end of the fixed disk 5, which is opposite to the stator core 1, is provided with a circular tube 51, the inner wall of the circular tube 51 is provided with four second limiting concave dies 511 corresponding to the limiting convex dies 41, the second limiting concave dies 511 are clamped with the limiting convex dies 41, and the fixed disks 5 are embedded on the bearing support base 4.

In fig. 4 and 6, the middle of one end of the fixed disk 5 close to the stator core 1 is provided with three cylindrical clamping protrusions 52, the clamping protrusions 52 are evenly distributed in the middle of the fixed disk 5 along the circumferential direction, second through holes 12 corresponding to the clamping protrusions 52 are arranged around the first through holes 11 in the middle of the stator core 1, the second through holes 12 axially penetrate through the stator core 1, and the fixed disk 5 is fixed at two ends of the stator core 1 through the clamping protrusions 52. The bearing support seat 4 comprises a bearing seat 42, a circular tube 51 on the fixed disk 5 is abutted against one end face of the bearing seat 42 close to the stator core 1, and the fixed disk 5 and the stator core 1 are integrally nested on the bearing support seat 4.

The limiting male die 41, the first limiting female die 13 and the second limiting female die 511 are matched for use, so that the assembly efficiency is improved, and the requirement of high production efficiency in seasons with high fan capacity requirements is further met in the motor production and assembly process.

In fig. 3, positioning holes 43 for connecting with an external component are formed in the side surface of the bearing seat 42, and the positioning holes 43 are uniformly distributed on the side surface of the bearing seat 42 along the circumferential direction.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims

1. The utility model provides an outer fan AC motor structure of rotating, includes stator core (1), casing (3) and pivot (2), stator core (1) nestification is on bearing supporting seat (4), its characterized in that: casing (3) terminal surface middle part is inside sunken to form frustum portion (31), the side leanin of frustum portion (31) forms frustum cover (311), frustum cover (311) are close to one end of stator core (1) and are rolled over to frustum portion (31) terminal surface center and press and form reinforcing ring (312), reinforcing ring (312) are parallel with frustum portion (31) terminal surface, and reinforcing ring (312) inboard is inlayed together with pivot (2) of fixing at casing (3) terminal surface middle part, and the position of inlaying is equipped with cyclic annular flange (313) that are used for fixed pivot (2) one end, cyclic annular flange (313) to protruding with frustum portion (31) inside sunken opposite direction, and pivot (2) pass through the bearing rotation setting on bearing supporting seat (4) for the other end of cyclic annular flange (313).

2. An external turn fan ac motor construction as claimed in claim 1, wherein: the shell (3) is formed by adopting a sheet metal process.

3. An external turn fan ac motor construction as claimed in claim 1, wherein: be equipped with spacing terrace die (41) that are used for fixed stator core (1) on bearing supporting seat (4), stator core (1) terminal surface middle part is equipped with first through-hole (11), first through-hole (11) inner wall be equipped with spacing terrace die (41) corresponding first spacing die (13), stator core (1) are nested in bearing supporting seat (4) middle part through first spacing die (13).

4. An external turn fan ac motor construction as claimed in claim 3, wherein: stator core (1) both ends are equipped with fixed disk (5) that are used for fixed stator core (1), fixed disk (5) are equipped with pipe (51) for the one end middle part of stator core (1), be equipped with on pipe (51) inner wall with spacing terrace die (41) corresponding spacing die (511) of second, fixed disk (5) are nested at bearing supporting seat (4) both ends through spacing die (511) of second.

5. An external turn fan ac motor construction as claimed in claim 4, wherein: a clamping protrusion (52) is arranged in the middle of one end, close to the stator core (1), of the fixed disc (5), second through holes (12) corresponding to the clamping protrusion (52) are formed in the periphery of a first through hole (11) in the middle of the stator core (1), the second through holes (12) axially penetrate through the stator core (1), and the fixed disc (5) is fixed to the two ends of the stator core (1) through the clamping protrusion (52);

the bearing support seat (4) comprises a bearing seat (42), and a circular tube (51) on the fixed disk (5) is abutted against one end face, close to the stator core (1), of the bearing seat (42).

6. An external turn fan ac motor construction as claimed in claim 5, wherein: the side face of the bearing seat (42) is provided with positioning holes (43) used for being connected with an external component, and the positioning holes (43) are uniformly distributed on the side face of the bearing seat (42) along the circumferential direction.