CN213547313U

CN213547313U - Switched reluctance motor

Info

Publication number: CN213547313U
Application number: CN202022643653.5U
Authority: CN
Inventors: 林佳佳; 林楚辉
Original assignee: Jinba Intelligent Technology Co ltd
Current assignee: Jinba Intelligent Technology Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-06-25
Anticipated expiration: 2030-11-16

Abstract

The utility model relates to a switched reluctance motor, which comprises a front end cover, a rear end cover, a stator core, a coil winding, a rotor core, a rotating shaft, fan blades, a position ring, a photoelectric switch circuit board and a photoelectric switch, wherein the front end cover and the rear end cover are respectively and fixedly arranged at the front side and the rear side of the stator core, the coil winding is wound on the stator core, the rotor core is sleeved in the stator core, the rotor core is fixedly arranged in the middle of the rotating shaft, the fan blades are arranged at the rear end of the rotating shaft and are covered by the rear end cover, the front end of the rotating shaft extends out from the front end cover, the position ring is fixedly arranged in the rotating shaft, a notch for the photoelectric switch circuit board to extend into is arranged at the side of the front end cover, the photoelectric switch is arranged at the rear of the photoelectric switch circuit board, the switched reluctance motor, the photoelectric switch is high in sensitivity and accurate in detection, and meanwhile, the installation of parts can be reduced, so that the use requirement is met.

Description

Switched reluctance motor

Technical Field

The utility model relates to a motor field, concretely relates to switched reluctance motor.

Background

The switched reluctance motor is a type of speed-regulating motor developed in recent years after a dc motor and a brushless dc motor, and its coil winding is on a stator, not on a rotor, so that electric power does not need to be transmitted by means of parts such as brushes and a phase converter, and the switched reluctance motor has the advantages of simpler mechanical structure, low manufacturing cost, and the like, and is more and more popular in use. The existing switched reluctance motor detects the position of a rotor through an internal Hall sensor, then the corresponding coil winding is electrified to start according to the position of the rotor, the Hall sensor is adopted, the defects of large volume and troublesome assembly caused by multiple corresponding matched parts are overcome, the detection precision is low, the sensitivity is low, in addition, the heat dissipation of the traditional switched reluctance motor is mainly realized through fan blades, and the heat dissipation effect is generally still to be improved.

SUMMERY OF THE UTILITY MODEL

To the defects such as bulky, many, the precision of prior art switched reluctance motor exists, radiating effect is general, the utility model provides a switched reluctance motor, concrete technical scheme is as follows:

the utility model provides a switched reluctance motor, including the front end housing, the rear end housing, stator core, the coil winding, rotor core, the apparatus further comprises a rotating shaft, the fan blade, the position ring, photoelectric switch circuit board and photoelectric switch, the front end housing, the rear end housing is fixed mounting respectively and inclines around stator core, coil winding stator core, the inside suit rotor core of stator core, rotor core fixed mounting is in the pivot middle part, pivot rear end installation fan blade, the fan blade is closed by the rear end housing lid, the pivot front end stretches out from the front end housing, position ring fixed mounting is in the pivot, front end housing side is equipped with the breach that supplies photoelectric switch circuit board to stretch into, photoelectric switch circuit board rear portion installation photoelectric switch, thereby photoelectric switch passes through induction position ring position and realizes detecting rotor core position.

As a preferred scheme of the utility model, the position ring is equipped with a plurality of position boards around position ring center pin circumference range, separates mutually between two adjacent position boards, and photoelectric switch has 2, and the position board passes through photoelectric switch along with the rotation of position ring.

As an optimized scheme of the utility model, stator core is formed by polylith stator iron core board dislocation closed assembly.

As an optimized scheme of the utility model, the dislocation angle of upper stator iron core board and lower floor's stator iron core board is 45 degrees.

As the utility model discloses a preferred scheme still includes line frame and lower coil frame, and the line frame cartridge of going up is in stator core the place ahead, and the lower coil frame cartridge is at the stator core rear.

As an optimal scheme of the utility model, front end housing, rear end cap, stator core pass through the screw nut installation of periphery side integrative.

Has the advantages that: adopt hall sensor to detect the rotor position for prior art, the utility model discloses switched reluctance motor passes through photoelectric switch inductive position ring position, rotates through pivot and rotor core synchronous because of the position ring simultaneously to realize detecting the rotor core position, adopt photoelectric switch sensitivity high, detect the accuracy, reducible part installation simultaneously is favorable to reducing the motor volume, satisfies the user demand.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a side view of the present invention after the front end cap is hidden;

fig. 4 is a front view of the present invention after the front cover is hidden;

FIG. 5 is a sectional view taken in the direction B-B in FIG. 4;

fig. 6 is an enlarged view at a in fig. 1.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 5, a switched reluctance motor comprises a front end cover 1, a rear end cover 2, a stator core 3, a coil winding 4, a rotor core 5, a rotating shaft 6, a fan blade 7, a position ring 8, a photoelectric switch circuit board 9 and a photoelectric switch 10, wherein the front end cover 1 and the rear end cover 2 are respectively and fixedly installed on the front side and the rear side of the stator core 3, the coil winding 4 is wound on the stator core 3, the coil winding 4 preferably comprises 8 groups, the rotor core 5 is sleeved in the stator core 3, the rotor core 5 is fixedly installed in the middle of the rotating shaft 6, the fan blade 7 is installed at the rear end of the rotating shaft 6, the fan blade 7 is covered by the rear end cover 2, the front end of the rotating shaft 6 extends out of the front end cover 1, the position ring 8 is fixedly installed on the rotating shaft 6, a notch for the photoelectric switch circuit board,

specifically, position ring 8 is equipped with a plurality of position boards of arranging around position ring central axis circumference, separates mutually between two adjacent position boards and forms the dead slot, and photoelectric switch 10 has, and position board passes through photoelectric switch 10 along with position ring 8's rotation, and shielding light can be sensed when position board passes through 2 photoelectric switch 10 to sense position ring 8 position, simultaneously because of position ring 8 rotates with rotor core 5 through pivot 6 in step, thereby realizes detecting rotor core 5 position.

Specifically, the rotor core 5 is formed by stacking a plurality of core sheets, and the stator core 3 is formed by stacking a plurality of stator core plates 31 in a staggered manner, as shown in fig. 6, the staggered angle between the upper stator core plate 31 and the lower stator core plate 31 is 45 degrees, and the staggered 45-degree stacking is beneficial to improving the heat dissipation efficiency by about 20%.

Specifically, the switched reluctance motor further comprises an upper coil holder 11 and a lower coil holder 12, the upper coil holder 11 is inserted in front of the stator core 3, the lower coil holder 12 is inserted behind the stator core 3, the upper coil holder 11 and the lower coil holder 12 facilitate winding installation, and the front end cover 1, the rear end cover 2 and the stator core 3 are integrally installed through screws and nuts 14 on the outer peripheral side.

The above description is provided for the purpose of describing the present invention in more detail with reference to the preferred embodiments, and it should not be construed that the present invention is limited to these descriptions, and it will be apparent to those skilled in the art that the present invention can be implemented in many ways without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a switched reluctance motor, includes front end housing, rear end cap, stator core, coil winding, rotor core, pivot, fan blade, and front end housing, rear end cap are fixed mounting respectively and incline around stator core, and coil winding stator core, the inside suit rotor core of stator core, rotor core fixed mounting are in the pivot middle part, and pivot rear end installation fan blade, fan blade are closed by the rear end cap lid, and the pivot front end stretches out its characterized in that from the front end cap: still include position ring, photoelectric switch circuit board and photoelectric switch, position ring fixed mounting is in the pivot, and front end housing side is equipped with the breach that supplies the photoelectric switch circuit board to stretch into, and photoelectric switch is installed to photoelectric switch circuit board rear, thereby photoelectric switch passes through the sensing position ring and realizes detecting rotor core position.

2. A switched reluctance machine according to claim 1, wherein: the position ring is provided with a plurality of position plates which are arranged around the circumference of the central shaft of the position ring, every two adjacent position plates are separated, 2 photoelectric switches are arranged, and the position plates pass through the photoelectric switches along with the rotation of the position ring.

3. A switched reluctance machine according to claim 1, wherein: the stator core is formed by assembling a plurality of stator core plates in a staggered and overlapped mode.

4. A switched reluctance machine according to claim 3, wherein: the dislocation angle of the upper layer stator core plate and the lower layer stator core plate is 45 degrees.

5. A switched reluctance machine according to claim 1, wherein: the stator core assembly structure further comprises an upper coil frame and a lower coil frame, the upper coil frame is inserted in front of the stator core, and the lower coil frame is inserted behind the stator core.

6. A switched reluctance machine according to claim 1, wherein: the front end cover, the rear end cover and the stator core are integrally installed through bolts and nuts on the outer peripheral side.