CN204858804U - A sleeve seat for installing a stator assembly and an outer rotor motor for its application - Google Patents

Abstract

The utility model discloses an external rotor electric machine that is used for installing stator module's cover barrel and uses thereof, wherein the cover barrel includes the base and follows the sleeve portion that stretches out in the middle of the base one end, offers the bearing room that is used for installing the bearing respectively at sleeve portion both ends, radially extends a plurality of installation foot on the outer wall of base, is provided with the strengthening rib on the upper surface and/or the lower surface of installation foot, and the strengthening rib is connected aslope between the outer wall of base and the outer fringe of installation foot, its simple structure, and structural strength is big.

Description

A sleeve seat for installing a stator assembly and an outer rotor motor for its application

Technical field:

The utility model relates to a sleeve seat used for installing a stator assembly and an outer rotor motor applied thereto.

Background technique:

The existing plastic-sealed stator used in the outer rotor motor includes a sleeve seat, a stator core, an end insulation, a coil winding, and a plastic enclosure. The end insulation is installed on the end face of the stator core, and the coil winding is wound on the end insulation. , the sleeve seat is arranged in the shaft hole in the middle of the stator core, and the plastic package connects the stator core, end insulation, coil winding and the sleeve seat into one body.

Because the rotor of the outer rotor motor rotates on the outside of the motor, the conventional fixing method of the motor can only be on one side of the motor. Common installation methods include shaft horizontal installation and shaft downward vertical installation. When the shaft is installed horizontally, the end cover on one side is intelligently fixed, and it is installed in a cantilever style. When the shaft is installed downwards, only the upper end cover can be fixed, and the motor is drooping below. In these two cases, due to the gravity of the stator, the gravity of the load, and the vibration of the motor during operation, the stress between the plastic package and the sleeve seat will be acted on, causing the two to separate, and the combination between the plastic package and the sleeve seat will not be good. Reliable, low overall strength and easy to fall off.

In order to strengthen the structural strength of the socket seat and strengthen the bonding force between the socket seat and the plastic package, some existing manufacturers have redesigned the socket seat and added mounting feet or ribs to the socket seat, but the effect is still unsatisfactory. There are still hidden dangers in the use process.

Invention content:

The first purpose of the utility model is to provide a sleeve seat for installing the stator assembly, which has a simple structure and a high structural strength.

The second purpose of the utility model is to provide an external rotor motor with simple structure, high structural strength and high reliability.

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

A sleeve seat for installing a stator assembly, including a base and a sleeve part protruding from one end of the base, bearing chambers for installing bearings are respectively opened at both ends of the sleeve part, radially on the outer wall surface of the base Several mounting feet are extended, and reinforcing ribs are arranged on the upper surface and/or lower surface of the mounting feet, and the reinforcing ribs are obliquely connected between the outer wall surface of the base and the outer edge of the mounting feet.

The upper surface of the above-mentioned mounting foot is parallel to the lower surface, and two reinforcing ribs are arranged on the upper surface and the lower surface of the mounting foot. The two reinforcing ribs on the upper surface of the mounting foot are respectively located on both sides of the upper surface. The two reinforcing ribs on the surface are respectively located on the two sides of the lower surface.

The reinforcing ribs on the upper surface of the mounting feet and the reinforcing ribs on the lower surface of the mounting feet are inclined in opposite directions.

An arc-shaped flange is provided on the outer wall of the base between the two adjacent mounting feet, and each arc-shaped flange connects two adjacent mounting feet together.

Through holes are provided on the arc-shaped flange and the mounting feet.

A boss is provided on the outer edge of the upper surface of each mounting foot, and a mounting hole is opened in the middle of the boss. The two reinforcing ribs on the upper surface of the mounting foot are obliquely connected between the outer wall surface of the base and the boss and An upper groove is formed between the outer wall of the base, the two reinforcing ribs and the boss.

The above-mentioned stoppers are arranged on the outer edge of the lower surface of each installation foot, and the two reinforcement ribs on the lower surface of the installation foot are obliquely connected between the outer wall surface of the base and the stopper, and on the outer wall surface of the base, the two reinforcement ribs and the stopper A lower groove portion is formed between the blocks.

The number of the above-mentioned mounting feet is 4, and the 4 mounting feet are evenly distributed along the circumferential direction.

An external rotor motor, comprising a rotating shaft, a plastic-sealed stator and an outer rotor, the outer rotor is sheathed outside the plastic-sealed stator, the plastic-sealed stator includes a sleeve seat, a stator assembly and a plastic-sealed body, the stator assembly is set on the sleeve seat, and the plastic-sealed The body connects the sleeve seat and the stator assembly into one body, the rotating shaft is installed inside the sleeve seat, and one end of the rotating shaft protrudes from the middle of the sleeve seat to connect with the outer rotor. The sleeve seat adopts the above-mentioned Socket seat for mounting on stator assembly.

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

1) A reinforcing rib is provided on the upper surface and/or lower surface of the mounting foot, and the reinforcing rib is obliquely connected between the outer wall surface of the base and the outer edge of the mounting foot. Preferably, the upper surface of the mounting foot is parallel to the lower surface , there are 2 reinforcing ribs on the upper surface and the lower surface of the mounting foot, the 2 reinforcing ribs on the upper surface of the mounting foot are respectively located on both sides of the upper surface, and the 2 reinforcing ribs on the lower surface of the mounting foot are respectively located on the lower surface On both sides, the structure is simple, the structure strength is high, and the reliability is high;

2) There is an arc-shaped flange on the outer wall of the base between two adjacent mounting feet, and each arc-shaped flange connects two adjacent mounting feet together, effectively strengthening the gap between the base and the mounting feet the connection strength;

3) Through the through hole, the upper groove and the lower groove on the sleeve seat, the bonding force between the sleeve seat and the plastic package can be effectively increased, the overall strength is high, and it can effectively prevent falling off;

4) There is a mounting hole in the middle of the boss, which has a simple structure and is convenient for installation.

Description of drawings:

Fig. 1 is a perspective view of an angle of the sleeve seat in the embodiment;

Fig. 2 is a perspective view of another angle of the sleeve seat in the embodiment;

Fig. 3 is the top view of sleeve seat in the embodiment;

Fig. 4 is A-A sectional view in Fig. 3;

Fig. 5 is the perspective view of outer rotor motor in the embodiment;

Fig. 6 is an exploded view of the outer rotor motor in the embodiment;

Fig. 7 is a schematic structural diagram of the outer rotor motor in the embodiment.

Detailed ways:

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

Embodiment 1: As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, this embodiment is a sleeve seat for installing a stator assembly, including a base 11 and a sleeve part protruding from one end of the base 11 12. There are bearing chambers 120 for installing bearings at both ends of the sleeve part 12. Several mounting feet 13 extend radially from the outer wall of the base 11. The upper surface of the mounting feet 13 is parallel to the lower surface. Two reinforcing ribs 14 are arranged on the upper surface and the lower surface of the foot 13, and the two reinforcing ribs 14 on the upper surface of the mounting foot 13 are respectively located on both sides of the upper surface, and the two reinforcing ribs 14 on the lower surface of the mounting foot 13 respectively located on both sides of the lower surface. The reinforcing ribs 14 on the upper surface of the mounting foot 13 and the reinforcing ribs 14 on the lower surface of the mounting foot 13 are inclined in opposite directions. Between two adjacent mounting feet 13 , arc-shaped flanges 15 are provided on the outer wall of the base 11 , and each arc-shaped flange 15 connects two adjacent mounting feet 13 together. Through holes 16 are opened on the arc-shaped flange 15 and the mounting feet 13 . A boss 131 is provided on the outer edge of the upper surface of each mounting foot 13, and a mounting hole 1310 is opened in the middle of the boss 131. Two reinforcing ribs 14 on the upper surface of the mounting foot 13 are obliquely connected to the outer wall surface of the base 11 and An upper groove 171 is formed between the bosses 131 and between the outer wall surface of the base 11 , the two reinforcing ribs 14 and the bosses 131 . On the outer edge of the lower surface of each mounting foot 13, a stopper 132 is arranged, and the two reinforcing ribs 14 on the lower surface of the mounting foot 13 are obliquely connected between the outer wall surface of the base 11 and the stopper 132 and on the outside of the base 11. A lower groove 172 is formed between the wall surface, the two reinforcing ribs 14 and the block 132 . The number of mounting feet 13 is 4, and the 4 mounting feet 13 are evenly distributed along the circumferential direction.

Embodiment 2: As shown in Fig. 5, Fig. 6 and Fig. 7, this embodiment is an external rotor motor, including a rotating shaft 2, a plastic-sealed stator 3 and an outer rotor 4, and the outer rotor 4 is sleeved outside the plastic-sealed stator 3, so that The plastic-sealed stator 3 described above includes a sleeve base 1, a stator assembly 31 and a plastic-sealed body 32, wherein the stator assembly 31 includes a stator core 311, end insulation 312 and coil windings 313, and the end insulation 312 is installed on the end face of the stator core 311 Above, the coil winding 313 is wound on the end insulation 312, the sleeve base 1 is arranged in the shaft hole in the middle of the stator core 311, and the plastic package 32 insulates the sleeve base 1, the stator core 311, and the end 312 and the coil winding 313 are integrally connected. The sleeve base 1 includes a base 11 and a sleeve portion 12 protruding from one end of the base 11. A bearing chamber 120 is respectively opened at both ends of the sleeve portion 12, and a bearing 5 is installed in the bearing chamber 210. The rotating shaft 1 is located in the sleeve. The inside of the seat 1 and the two ends are supported on the bearings 5 respectively, and one end of the rotating shaft 2 protrudes from the middle of the sleeve seat 1 and is connected with the outer rotor 4 . The sleeve seat 1 described in the first embodiment is used for installing on the stator assembly, and the specific structure of the sleeve seat will not be discussed here.

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 (9)

1. A sleeve seat for installing a stator assembly, comprising a base (11) and a sleeve portion (12) protruding from one end of the base (11), and two ends of the sleeve portion (12) are respectively opened for The bearing chamber (120) for installing the bearings has several mounting feet (13) extending radially from the outer wall of the base (11), and is characterized in that: it is set on the upper surface and/or lower surface of the mounting feet (13) There are reinforcing ribs (14), and the reinforcing ribs (14) are obliquely connected between the outer wall surface of the base (11) and the outer edge of the mounting foot (13). 2. A sleeve seat for installing a stator assembly according to claim 1, characterized in that: the upper surface of the mounting foot (13) is parallel to the lower surface, and the upper surface and the lower surface of the mounting foot (13) 2 reinforcing ribs (14) are arranged on the upper surface, and the 2 reinforcing ribs (14) on the upper surface of the mounting foot (13) are respectively located on the two sides of the upper surface, and the 2 reinforcing ribs (14) on the lower surface of the mounting foot (13) ( 14) respectively located on the two sides of the lower surface. 3. A sleeve base for installing a stator assembly according to claim 2, characterized in that: the reinforcing rib (14) located on the upper surface of the mounting foot (13) and the reinforcing rib (14) located on the lower surface of the mounting foot (13) The ribs (14) are inclined in opposite directions. 4. A sleeve seat for installing a stator assembly according to claim 1, 2 or 3, characterized in that: between two adjacent mounting feet (13), on the outer wall of the base (11) Arc-shaped flanges (15) are provided, and each arc-shaped flange (15) connects two adjacent mounting feet (13) together. 5. A sleeve base for installing a stator assembly according to claim 4, characterized in that through holes (16) are opened on both the arc-shaped flange (15) and the mounting foot (13). 6. A sleeve seat for installing a stator assembly according to claim 2 or 3, characterized in that: a boss (131) is provided on the outer edge of the upper surface of each mounting foot (13), and A mounting hole (1310) is provided in the middle of the boss (131), and two reinforcing ribs (14) on the upper surface of the mounting foot (13) are obliquely connected between the outer wall surface of the base (11) and the boss (131) and between the bosses (131). An upper groove (171) is formed between the outer wall of the base (11), the two reinforcing ribs (14) and the boss (131). 7. A sleeve seat for installing a stator assembly according to claim 6, characterized in that: a stopper (132) is provided on the outer edge of the lower surface of each mounting foot (13), and the mounting foot (13) 13) The 2 reinforcing ribs (14) on the lower surface are obliquely connected between the outer wall of the base (11) and the stopper (132) and between the outer wall of the base (11), the 2 reinforcing ribs (14) and the stopper A lower groove portion (172) is formed between the blocks (132). 8. A sleeve seat for installing a stator assembly according to claim 1, 2 or 3, characterized in that: the number of mounting feet (13) is 4, and the 4 mounting feet (13) are along the circumferential direction evenly spaced. 9. An external rotor motor, comprising a rotating shaft (2), a plastic-sealed stator (3) and an external rotor (4), the external rotor (4) is sleeved outside the plastic-sealed stator (3), and the plastic-sealed stator (3) includes Sleeve seat (1), stator assembly (31) and plastic seal body (32), stator assembly (31) is sleeved on the sleeve seat (1), plastic seal body (32) described sleeve seat (1) and The stator assembly (31) is connected into one body, the rotating shaft (2) is installed inside the sleeve seat (1), and one end of the rotating shaft (2) protrudes from the middle of the sleeve seat (1) and is connected with the outer rotor (4). In that: the sleeve seat is the sleeve seat for installing the stator assembly described in any one of claims 1-8.