CN222423390U - Permanent magnet synchronous motor - Google Patents

Abstract

The present application discloses a permanent magnet synchronous motor, comprising a first end cover, a second end cover, a cylinder, a stator, a rotor and a rotating shaft, wherein the first end cover and the second end cover are respectively arranged at the two ends of the cylinder, the stator is fixedly arranged in the cylinder, the rotor is arranged on the rotating shaft, the two ends of the rotating shaft are respectively rotatably matched with the first end cover and the second end cover, the rotor is located in the stator, and also comprises a controller and a protective cover, the protective cover is a protective cover made of metal material, the protective cover is arranged on one side of the first end cover, a protective cavity is formed between the protective cover and the first end cover, the controller is arranged on the protective cover, and the controller is located on the inner wall of the protective cover, the controller is located in the protective cavity, and heat dissipation reinforcement ribs are arranged on the outer wall of the protective cover.

Description

Permanent magnet synchronous motor

Technical Field

The utility model relates to the field of motors, in particular to a permanent magnet synchronous motor.

Background

At present, in order to adjust the temperature and humidity when needed, a fan can be built in a tea garden or pasture, the most important part in the fan is a permanent magnet synchronous motor, a permanent magnet synchronous motor commonly used at present is disclosed in patent publication CN216490133U, a driver (also called a controller) is tightly attached to one side of a shell by the permanent magnet synchronous motor, the installation mode can be approximately regarded as the integrated installation of the driver and the shell, and the integrated installation mode reduces the volume of the whole motor, but is unfavorable for the heat dissipation of the driver.

Disclosure of utility model

The utility model aims at the problems and provides a permanent magnet synchronous motor.

The technical scheme adopted by the utility model is as follows:

The utility model provides a PMSM, includes first end cover, second end cover, barrel, stator, rotor and pivot, first end cover sets up respectively in the both ends of barrel with the second end cover, the stator fixed set up in the barrel, the rotor set up in the pivot, the both ends of pivot are in the same place with first end cover and second end cover normal running fit respectively, the rotor is located the stator, still includes controller and protection casing, the protection casing is the protection casing of metal material, the protection casing sets up in first end cover one side, protection casing and first end cover have formed the protection chamber between, the controller set up in on the protection casing, and the controller is located the inner wall of protection casing, the controller is located the protection intracavity, be provided with the heat dissipation strengthening rib on the outer wall of protection casing.

This PMSM is mainly applied to the fan that pasture or tea garden used, and the one end of pivot is used for installing the flabellum, and after installing the flabellum in the pivot, flabellum and protection casing are located the both ends of barrel respectively, and when the pivot drove the flabellum and rotate, in the outer wall department of barrel and protection casing formation mobile air current, because the controller has set up on the inner wall of protection casing, and set up the heat dissipation strengthening rib on the outer wall of protection casing, the heat dissipation strengthening rib is used for playing the effect of strengthening protection casing intensity once, and secondly is used for playing the area of contact that increases and air current plays the effect of accelerating the heat dissipation. Therefore, in the permanent magnet synchronous motor, after the fan blades are arranged on the rotating shaft, the controller in the protective cover can also utilize the air flow formed by the fan blades to rapidly dissipate heat.

In summary, in the permanent magnet synchronous motor of the present invention, after the fan blade is mounted on the rotating shaft, the controller located in the protection cover can also utilize the air flow formed by the fan blade to rapidly dissipate heat.

Optionally, a hanging ring is arranged on the outer wall of the cylinder.

Because this kind of PMSM is mainly used on the fan in pasture or tea garden, so probably need hoist and mount when the installation, set up rings on the outer wall of barrel for being convenient for hoist and mount.

Optionally, a first type groove is formed in the stator, and the first type groove is a T-shaped first type groove.

The T-shaped first type groove is convenient for winding.

Optionally, a second type groove is formed in the rotor, the second type groove is a V-shaped second type groove, a sharp corner of the second type groove faces the rotating shaft, and a magnet is arranged in the second type groove.

The second type groove is a V-shaped second type groove, and the sharp angle of the second type groove faces the rotating shaft, so that the AC-DC inductance difference can be increased, and the constant-power weak-magnetic speed regulation area can be enlarged. The specific rotating shaft is fixed on the central hole of the rotor.

Optionally, the rotor is provided with a clock removing hole, the clock removing hole is located between two adjacent second type grooves, and the clock removing hole is in a Zhong Kongcheng T-shaped fan shape.

The function of the clock removing hole is to reduce the weight of the whole rotor, so that the moment of inertia of the whole rotor can be reduced, the mechanical constant time of the motor is reduced, and the colleague can ensure the magnetic conduction area to the greatest extent because the clock removing hole is positioned between two adjacent second grooves.

The fan blade type air conditioner has the beneficial effects that after the fan blade is arranged on the rotating shaft, the controller in the protective cover can also quickly dissipate heat by utilizing air flow formed by the fan blade.

Drawings

FIG. 1 is a schematic diagram of a permanent magnet synchronous motor;

FIG. 2 is a schematic view of the position of the controller within the enclosure;

FIG. 3 is a schematic diagram of the rotor-stator mating relationship;

Fig. 4 is a schematic structural view of the rotor.

The reference numerals in the figure are 101, a first end cover, 102, a second end cover, 2, a cylinder, 3, a hanging ring, 4, a rotating shaft, 5, a protective cover, 501, a heat dissipation reinforcing rib, 6, a controller, 7, a magnet, 8, a stator, 801, a first type groove, 9, a rotor, 901, a second type groove, 902, zhong Kong, 903 and a center hole.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a permanent magnet synchronous motor comprises a first end cover 101, a second end cover 102, a cylinder 2, a stator 8, a rotor 9 and a rotating shaft 4, wherein the first end cover 101 and the second end cover 102 are respectively arranged at two ends of the cylinder 2, the stator 8 is fixedly arranged in the cylinder 2, the rotor 9 is arranged on the rotating shaft 4, two ends of the rotating shaft 4 are respectively in running fit with the first end cover 101 and the second end cover 102, the rotor 9 is positioned in the stator 8, the permanent magnet synchronous motor further comprises a controller 6 and a protective cover 5, the protective cover 5 is made of metal, the protective cover 5 is arranged on one side of the first end cover 101, a protective cavity is formed between the protective cover 5 and the first end cover 101, the controller 6 is arranged on the protective cover 5, the controller 6 is positioned in the protective cavity, and heat dissipation reinforcing ribs 501 are arranged on the outer wall of the protective cover 5.

This kind of PMSM is mainly applied to the fan that pasture or tea garden used, the one end of pivot 4 is used for installing the flabellum, after the flabellum was installed in pivot 4, flabellum and protection casing 5 are located the both ends of barrel 2 respectively, when pivot 4 drove the flabellum and rotate, the outer wall department at barrel 2 and protection casing 5 forms the air current that flows, because controller 6 has set up on the inner wall of protection casing 5, and set up heat dissipation strengthening rib 501 on the outer wall of protection casing 5, heat dissipation strengthening rib 501 is used for playing the effect of strengthening protection casing 5 intensity once, and secondly be used for playing the area of contact that increases and air current plays the effect of accelerating the heat dissipation. Therefore, in the permanent magnet synchronous motor, after the fan blades are mounted on the rotating shaft 4, the controller 6 positioned in the protective cover 5 can also utilize the air flow formed by the fan blades to rapidly dissipate heat. Taking the direction shown in fig. 1 as an example, after the fan blade is added to the rotating shaft, the fan blade is located at the rightmost side (i.e., the right side of the second end cover).

In summary, in the permanent magnet synchronous motor of the present invention, after the fan blade is mounted on the rotating shaft 4, the controller 6 located in the protecting cover 5 can also utilize the air flow formed by the fan blade to rapidly dissipate heat.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a hanging ring 3 is arranged on the outer wall of the cylinder 2.

Because this kind of PMSM is mainly used on the fan in pasture or tea garden, so probably need hoist and mount when the installation, set up rings 3 on the outer wall of barrel 2 for the hoist and mount of being convenient for.

As shown in fig. 1, 2, 3 and 4, the stator 8 is provided with a first groove 801, and the first groove 801 is a T-shaped first groove 801.

The T-shaped first type groove 801 facilitates winding.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the rotor 9 is provided with a second type groove 901, the second type groove 901 is a V-shaped second type groove 901, the sharp angle of the second type groove 901 faces the rotating shaft 4, and a magnet 7 is arranged in the second type groove 901.

The second type groove 901 is a V-shaped second type groove 901, and the sharp angle of the second type groove 901 faces the rotating shaft 4, so that the AC-DC inductance difference can be increased, and the constant-power weak-magnetic speed regulation area can be enlarged. The specific shaft 4 is fixed to the central hole 903 of the rotor 9.

As shown in fig. 1, 2, 3 and 4, the rotor 9 is provided with a clock-removing hole 902, the clock-removing hole Zhong Kong is located between two adjacent second grooves 901, and the clock-removing hole 902 is in a T-shape.

The function of the clock-removing hole 902 is to reduce the weight of the whole rotor 9, so that the moment of inertia of the whole rotor 9 can be reduced, the mechanical constant time of the motor can be reduced, and the colleague can ensure the magnetic conduction area to the maximum extent because the clock-removing hole 902 is positioned between two adjacent second grooves 901. The seal grade in this motor reaches IP66.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but is intended to cover all equivalent modifications, direct or indirect, as would be included in the scope of the utility model.

Claims (5)

1. The utility model provides a PMSM, includes first end cover, second end cover, barrel, stator, rotor and pivot, first end cover sets up respectively in the both ends of barrel with the second end cover, the stator fixed set up in the barrel, the rotor set up in the pivot, the both ends of pivot are in the same place with first end cover and second end cover normal running fit respectively, the rotor is located the stator, its characterized in that still includes controller and protection casing, the protection casing is the protection casing of metal material, the protection casing sets up in first end cover one side, protection casing and first end cover have formed the protection chamber between, the controller set up in on the protection casing, and the controller is located on the inner wall of protection casing, the controller is located the protection intracavity, be provided with the heat dissipation strengthening rib on the outer wall of protection casing.

2. The permanent magnet synchronous motor according to claim 1, wherein a hanging ring is provided on an outer wall of the cylinder.

3. The permanent magnet synchronous motor of claim 1 wherein the stator is provided with a first type slot, and wherein the first type slot is a T-shaped first type slot.

4. The permanent magnet synchronous motor according to claim 1, wherein the rotor is provided with a second type groove, the second type groove is a V-shaped second type groove, the sharp angle of the second type groove faces the rotating shaft, and a magnet is arranged in the second type groove.

5. The permanent magnet synchronous motor of claim 4 wherein the rotor is provided with a de-clocking hole, the de-clocking hole is located between two adjacent second type slots, and the de-clocking hole is in the shape of a Zhong Kongcheng T-shaped fan.