CN210629233U - Reluctance motor - Google Patents

Abstract

The utility model relates to a reluctance motor, which comprises a stator component, a rotor component, a front end cover and a rear end cover; the rotor assembly comprises a rotating shaft penetrating from the stator assembly; one end of the rotating shaft penetrates out of the front end cover, and the other end of the rotating shaft is rotatably connected with the rear end cover; the front shaft sleeve and the rear shaft sleeve are respectively sleeved on the rotating shaft; a first liquid storage tank for storing lubricant is arranged in the front shaft sleeve; a first liquid guide groove communicated with the first liquid storage groove and used for guiding the liquid in the first liquid storage groove to the contact surface of the rotating shaft and the front shaft sleeve is arranged on the contact surface of the front shaft sleeve and the rotating shaft; a second liquid storage tank for storing the lubricant is arranged on the rear shaft sleeve; and a second liquid guide groove communicated with the second liquid storage groove and used for guiding the liquid in the second liquid storage groove to the contact surface of the rotating shaft and the front shaft sleeve is arranged on the contact surface of the front shaft sleeve and the rotating shaft. The reluctance motor has the advantages of simple structure, smooth rotation, excellent performance and low manufacturing cost.

Description

Reluctance motor

Technical Field

The utility model relates to a motor, more specifically say, relate to a reluctance motor.

Background

With the development of society and the more and more extensive application of switched reluctance motors, the reluctance motors in the market have the structural characteristics that the rotors rotate by means of the close fit of the rotating shafts and the bearings. Generally, the bearing is expensive and has the defect of inconvenient installation, which easily causes the increase of the manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in that, a modified reluctance motor is provided.

The utility model provides a technical scheme that its technical problem adopted is: constructing a reluctance motor, which comprises a stator component, a rotor component assembled with the stator component, and a front end cover and a rear end cover which are used for arranging the front end and the rear end of the stator component; the rotor assembly comprises a rotating shaft penetrating from the stator assembly; one end of the rotating shaft penetrates out of the front end cover, the other end of the rotating shaft is rotatably connected with the rear end cover, and the rotating shaft further comprises a front shaft sleeve arranged on the front end cover and a rear shaft sleeve arranged on the rear end cover; the front shaft sleeve and the rear shaft sleeve are respectively sleeved on the rotating shaft;

a first liquid storage tank for storing lubricant is arranged in the front shaft sleeve; a first liquid guide groove communicated with the first liquid storage groove and used for guiding the liquid in the first liquid storage groove to the contact surface of the rotating shaft and the front shaft sleeve is arranged on the contact surface of the front shaft sleeve and the rotating shaft;

a second liquid storage tank for storing lubricant is arranged on the rear shaft sleeve; and a second liquid guide groove communicated with the second liquid storage groove and used for guiding the liquid in the second liquid storage groove to the contact surface of the rotating shaft and the front shaft sleeve is arranged on the contact surface of the front shaft sleeve and the rotating shaft.

Preferably, the first liquid guide groove is spiral;

and/or the second liquid guide groove is spiral.

Preferably, the front shaft sleeve is inserted into the front end cover and comprises a first sleeving part sleeved on the rotating shaft and a first matching part arranged at one end of the first sleeving part and matched with the front end cover;

the radial dimension of the first matching part is larger than that of the first sleeving part so as to be arranged on one side, opposite to the stator group, of the front end cover;

the first sleeving part comprises a first through hole for the rotating shaft to penetrate through;

the first liquid guide groove is arranged on the inner side wall of the first through hole;

the first reservoir is disposed on the first mating portion.

Preferably, the first sleeving part is provided with a first opening communicated with the first through hole for the rotating shaft to penetrate through;

the inner side wall of the first opening is provided with a first chamfering structure matched with the rotating shaft.

Preferably, the rear shaft sleeve is inserted into the rear end cover and comprises a second sleeving part sleeved on the rotating shaft and a second matching part arranged at one end of the second sleeving part and matched with the rear end cover;

the radial dimension of the second matching part is larger than that of the second sleeving part so as to be arranged on one side, opposite to the stator assembly, of the rear end cover;

the second sleeving part comprises a second through hole for the rotating shaft to penetrate through;

the second liquid guide groove is arranged on the inner side wall of the second through hole;

the second reservoir is disposed on the second mating portion.

Preferably, the second sleeving part is provided with a second opening communicated with the second through hole for the rotating shaft to penetrate through;

the inner side wall of the second opening is provided with a second chamfer structure matched with the rotating shaft.

Preferably, the front shaft sleeve and the front end cover are integrally formed;

and/or the rear shaft sleeve and the rear end cover are integrally formed.

Preferably, the stator assembly comprises a stator core and an armature winding sleeved on the stator core;

the front end cover and the rear end cover are respectively arranged at two ends of the stator core and detachably connected with the stator core.

Preferably, a first clamping structure is arranged between the front end cover and the stator core;

the first clamping structure comprises a first clamping groove which is arranged on the inner side of the front end cover and sleeved on the stator core;

a second clamping structure is arranged between the rear end cover and the stator core;

the second clamping structure comprises a second clamping groove which is arranged on the inner side of the rear end cover and sleeved on the stator core.

Preferably, the front shaft sleeve and the rear shaft sleeve are both ceramic shaft sleeves.

Implement the utility model discloses a reluctance motor has following beneficial effect: the reluctance motor can be manufactured by arranging a front shaft sleeve on a front end cover, arranging a rear shaft sleeve on a rear end cover, and arranging a first liquid storage tank for storing lubricant and a first liquid guide tank communicated with the first liquid storage tank in the front shaft sleeve; set up the second reservoir of storage emollient and the second cistern that communicates with this second reservoir in the axle sleeve of back, thereby can overlap this preceding axle sleeve and this back axle sleeve and establish in order to replace the bearing in this pivot, be convenient for this pivot to rotate, can guarantee that reluctance motor is in low-speed operation, keep moderate torsion, it is even to guarantee the low-speed rotational speed, the increase of low-speed operating current, more effective assurance reluctance motor is at low rotational speed, high torsion rotates down, and then can guarantee that the pivot rotates smooth and easy basis on, optimize reluctance motor manufacturing cost and assembling process.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is a schematic structural view of a reluctance machine according to some embodiments of the present invention;

fig. 2 is a cross-sectional view of the reluctance machine shown in fig. 1;

FIG. 3 is a schematic structural view of a front bushing of the reluctance machine of FIG. 1;

FIG. 4 is a cross-sectional view of a front sleeve of the reluctance machine of FIG. 3;

fig. 5 is a schematic structural view of a front cover of the reluctance machine shown in fig. 1.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 and 2 show some preferred embodiments of the reluctance machine of the present invention. The reluctance motor has the advantages of simple structure, smooth rotation, excellent performance, high reliability, stepless speed regulation, simple assembly, low manufacturing cost and wide speed regulation range.

As shown in fig. 1 and 2, in some embodiments, the reluctance machine may include a front end cover 10, a rear end cover 20, a stator assembly 30, a rotor assembly 40, a front bushing 50, and a rear bushing 60. The front cover 10 and the rear cover 20 can be disposed at two ends of the stator assembly 30, and the stator assembly 30 can be matched with the rotor assembly 40 in an electrified state to drive the rotor assembly 40 to rotate. The rotor assembly 40 can be rotatably coupled to the stator assembly 30, which can output power by rotation. The front bushing 50 can be disposed on the front cover 10 and can be connected to the rotor assembly 40 to cooperate with the rotor assembly 40 to rotate. The rear hub 60 may be disposed on the rear end cap 20, which may be connected to the rotor assembly 40, which may cooperate with the rotor assembly 40 for rotation.

As shown in fig. 1, fig. 2, and fig. 5, further, in some embodiments, the front end cover 10 may be sleeved on one end of the stator assembly 30, a cavity may be left between the front end cover 10 and the stator assembly 30, the front end cover 10 may be detachably connected to the stator assembly 30, and a first clamping structure may be disposed between the front end cover 10 and the stator assembly 30, and the first clamping structure is detachably connected to the stator assembly 30. This first joint structure can include first joint groove 11, and this first joint groove 11 sets up the inboard at this front end housing 10, and is located the open end of this front end housing 10, and it sets up along the circumference of this front end housing 10, specifically, the inside wall of this front end housing 10 is provided with the boss along the axial, and the height of this boss is less than the height of this front end housing 10 to the interval between its and the opening terminal surface of this front end housing 10 forms this first joint groove. The thickness of the end of the front end cover 10 provided with the first clamping groove is 2-5 mm.

In some embodiments, the rear end cap 20 can be sleeved on the other end of the stator assembly 30, and a cavity can be left between the rear end cap and the stator assembly 30. The rear end cap 20 is detachably connected to the stator assembly 30, a second clamping structure may be disposed between the rear end cap and the stator assembly 30, and the rear end cap is detachably connected to the stator assembly 30 through the second clamping structure. The second clamping structure can comprise a second clamping groove; the second clamping groove can be arranged on the inner side of the rear end cover 20 and is located at the opening end of the rear end cover 20, and the second clamping groove can be arranged along the circumferential direction of the rear end cover 20. Specifically, a boss is axially disposed on the inner side wall of the rear end cover 20, and the height of the boss is smaller than that of the rear end cover 20, so that the second clamping groove is formed at an interval between the boss and the opening end surface of the rear end cover 20. The thickness of the end of the rear end cover 10 provided with the second clamping groove is 2-5 mm.

Further, in some embodiments, the stator assembly 30 may include a stator core 31, and armature windings 32; the stator core 31 may be sleeved on the periphery of the rotor assembly 40. The front end cover 10 and the rear end cover 20 can be respectively sleeved at two ends of the stator core 31 and can be detachably connected with the stator core 31, and specifically, can be detachably connected with the stator core 31 through the first clamping structure and the second clamping structure respectively. Specifically, when the stator core 31 is assembled with the front end cover 10 and the rear end cover 20, one end of the stator core 31 may be clamped into a first clamping groove of the front end cover 10 until an end face of the stator core 31 is attached to an end face of a boss in the front end cover 10, and the first clamping groove may be in over-fit with the stator core 31; the other end of the stator core 31 is clamped into the second clamping groove of the front end cover 20, the end face of the stator core 31 is attached to the end face of the boss of the rear end cover 20, and the second clamping groove is in excessive fit with the stator core 31. The armature windings 32 may be multiple, and may be sleeved on the stator core 31 and may be disposed along the circumferential direction of the stator core 31.

This front end housing 10 and this rear end housing 20 and this stator core are connected through first joint structure and second joint structure, can effectual reduction reluctance motor because vibrations and noise that the assembly relation arouses can promote both in circumference and axial complex intensity, promote the reliability, not fragile drop rotates the in-process, can realize the application requirement of high-power, big moment of torsion.

In the energized state, the stator assembly 30 may attract the rotor assembly 40 by generating a magnetic force, such that the magnetic force generates a tangential component force, i.e., a torque to the rotor assembly 40. The stator assembly 30 is energized sequentially according to the phase of the stator assembly 30 most favorable for generating the forward rotation torque of the rotor assembly 40, which corresponds to the position of the rotor assembly 40 detected by the hall sensor on the hall plate 70 of the rotor assembly 40, and then the next phase which is favorable for generating the torque of the rotor assembly 40 is energized after rotating for a certain angle. The continuously alternating energized armature windings 32 are phased so that the rotor assembly 40 rotates continuously in one direction.

Further, in some embodiments, the rotor assembly 40 may include a rotating shaft 41, a rotor core 42, and a fan blade 43; one end of the rotating shaft 41 can penetrate out of the front end cover 10, and the other end of the rotating shaft penetrates into the rotor core 42 and is rotatably connected with the rear end cover 20. The rotor core 42 can be disposed in the stator core 31, and can be sleeved on the periphery of the rotating shaft 41. The fan 43 can be sleeved on the rotating shaft 41 and can be located in the rear end cover 20.

In some embodiments, the rotating shaft 41 may include a main body portion penetrating the rotor core 42, a first connecting portion disposed at one end of the main body portion to connect with the rear cover 20, and a second connecting portion disposed at the other end of the main body portion to penetrate the front cover 10 and connect with an element to be driven. An annular chamfer angle can be arranged between the main body part and the first connecting part, the angle of the annular chamfer angle is about 45 degrees, and the width of the annular chamfer angle is 1-2 mm. Similarly, an annular chamfer may be provided between the body portion and the second connecting portion, the annular chamfer having an angle of about 45 ° and an annular chamfer width of 1-2 mm.

As shown in fig. 1 to 4, further, in some embodiments, the front sleeve 50 may be a ceramic sleeve, and the front sleeve 50 may be made of a ceramic material to improve the strength of the front sleeve 50, and the front sleeve 50 may include a first sleeve portion 51 and a first matching portion 52. The first engaging portion 51 may be a column shape, which can penetrate through the front axle sleeve 50 and is sleeved on the rotating shaft 41. The first socket 51 may include a first through hole 511; the first through hole 511 may be a through hole with two ends penetrating, and is used for the rotation shaft 41 to penetrate through. The first through hole 511 has a radial size corresponding to the outer diameter of the first connection portion of the rotating shaft 41 to be matched with the first connection portion. The first engaging portion 51 has a first opening 512 communicating with the first through hole 511; the first opening 512 allows the shaft 41 to pass through the first through hole 511. In some embodiments, the inner sidewall of the first opening 512 is provided with a first chamfer structure 513; the first chamfer structure 513 can be matched with the rotating shaft 41, specifically, it can be matched with the annular chamfer between the first connecting part and the main body part of the rotating shaft 41, and the angle and the width of the first chamfer structure are both equivalent to those of the annular chamfer between the first connecting part and the main body part, so as to facilitate the positioning and installation of the front axle sleeve 50. The first matching portion 52 can be disposed at one end of the first sleeving portion 51, can be integrally formed with the first sleeving portion 51, can be installed in a matching manner with the front end cover 10, has a radial dimension larger than that of the first sleeving portion 51, and can be disposed on one side of the front end cover 10 opposite to the stator assembly 30.

Further, in some embodiments, a first reservoir 521 is disposed in the front sleeve 50; the first reservoir 521 may be disposed in the first fitting portion, may be disposed along a circumferential direction of the first through hole 511, may be used to store lubricant, and may also have a buffering, pressure reducing function. In some embodiments, the width of the first reservoir 521 may be 2-3mm, and the front axle sleeve 50 may further be provided with a first liquid guiding groove 5111; the first liquid guiding groove 511 may be disposed on a contact surface of the front shaft sleeve 50 contacting the rotating shaft 41, specifically, it may be disposed on an inner sidewall of the first through hole 51, and is communicated with the first liquid storage groove 521, and it may be used to guide the liquid in the first liquid storage groove 521 out of the contact surface of the rotating shaft 41 and the front shaft sleeve 50, when the rotating shaft 41 rotates, it may drive the first liquid guiding groove 5111 to guide out the lubricating oil in the first liquid storage groove 521, thereby playing a role of lubricating the rotating shaft, improving the smoothness of the rotation of the rotating shaft 41, and improving the service life of the whole motor. In some embodiments, the first liquid guiding groove 5111 can be a spiral groove, and it is understood that in other embodiments, the first liquid guiding groove can not be limited to a spiral groove. In some embodiments, the depth of the first reservoir 521 is 4-5mm greater than the outer diameter of the first channel 511.

Further, in some embodiments, the rear sleeve 60 may be a ceramic sleeve, and the strength of the rear sleeve 60 may be improved by using a ceramic material, and the rear sleeve 60 may include a second sleeving part 61 and a second matching part 62. The second engaging portion 61 may be a column, which can be inserted through the rear axle sleeve 60 and is sleeved on the rotating shaft 41. The second nesting portion 61 may include a second through hole 611; the second through hole 611 may be a through hole with two ends penetrating, and the rotating shaft 41 can penetrate through the through hole. The second through hole 611 has a radial size corresponding to an outer diameter of the second connecting portion of the rotating shaft 41 to be fitted with the second connecting portion. The second engaging portion 61 is provided with a second opening 612 communicating with the second through hole 611; the second opening 612 allows the shaft 41 to pass through the second through hole 611. In some embodiments, the inner sidewall of the second opening 612 is provided with a second chamfer structure 613; the second chamfer structure 613 can be matched with the rotating shaft 41, specifically, it can be matched with the annular chamfer between the second connecting part and the main body part of the rotating shaft 41, and the angle and the width of the second chamfer structure are both equivalent to those of the annular chamfer between the second connecting part and the main body part, so as to facilitate the positioning and installation of the rear bushing 60. The second matching portion 62 may be disposed at one end of the second sleeving portion 61, and may be integrally formed with the second sleeving portion 61, and may be installed in cooperation with the front end cover 10, and a radial dimension of the second matching portion 62 is greater than a radial dimension of the second sleeving portion 61, and may be disposed on a side of the front end cover 10 opposite to the stator assembly 30.

Further, in some embodiments, a second reservoir 621 is provided in the rear hub 60; the second reservoir 621 may be disposed in the second fitting portion, may be disposed along a circumferential direction of the second through hole 611, may be used to store lubricant, and may also have a buffering, pressure reducing effect, and the width of the second reservoir 621 may be 2-3 mm. The rear shaft sleeve 60 can also be provided with a second liquid guide groove 6111; the second liquid guiding groove 611 may be disposed on a contact surface of the rear shaft sleeve 60 contacting the rotating shaft 41, specifically, it may be disposed on an inner sidewall of the second through hole 61, and is communicated with the second liquid storage groove 621, and it may be used to guide the liquid in the second liquid storage groove 621 out to the contact surface of the rotating shaft 41 and the rear shaft sleeve 60, when the rotating shaft 41 rotates, it may drive the second liquid guiding groove 611 to guide the liquid in the second liquid storage groove 621 out, so as to play a role in lubricating the rotating shaft, improve the smoothness of the rotation of the rotating shaft 41, and improve the service life of the whole motor. In some embodiments, the second fluid conduit 6111 can be a helical groove, and it will be appreciated that in other embodiments, the second fluid conduit can be not limited to a helical groove. The depth of the second reservoir 621 is 4-5mm larger than the outer diameter of the second liquid guiding groove 611.

Further, in the present embodiment, the reluctance motor may further include a hall plate 70; the hall plate 70 may be disposed between the stator core 32 and the front cover 20, and may include a plate body and a hall sensor disposed on the plate body, which may be used to detect a rotational position of the rotor assembly.

Further, in the present embodiment, the reluctance motor may further include a controller 80; the controller 80 can be disposed near an end of the front end cap 20, and can be electrically connected to the stator assembly 30, which can control the power on/off of the stator assembly 30.

As shown in fig. 1 and 5, in this embodiment, the reluctance motor may further include a connecting component for connecting the front end cover 20 and the rear end cover 30. The connecting component can be a bolt, the number of the bolts can be multiple, a plurality of first screw holes are formed in the front end cover 20 along the circumferential direction, and a plurality of second screw holes are formed in the corresponding rear end cover 30 along the circumferential direction; the bolts can be inserted into the first and second screw holes to connect the front end cover 20 and the rear end cover 30.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. A reluctance motor comprises a stator assembly (30), a rotor assembly (40) assembled with the stator assembly (30), a front end cover (10) and a rear end cover (20) which are arranged at the front end and the rear end of the stator assembly (30); the rotor assembly (40) comprises a rotating shaft (41) penetrating from the stator assembly (30); one end of the rotating shaft (41) penetrates out of the front end cover (10), and the other end of the rotating shaft is rotatably connected with the rear end cover (20), and the rotating shaft is characterized by further comprising a front shaft sleeve (50) arranged on the front end cover (10) and a rear shaft sleeve (60) arranged on the rear end cover (20); the front shaft sleeve (50) and the rear shaft sleeve (60) are respectively sleeved on the rotating shaft (41);

a first reservoir (521) for storing lubricant is arranged in the front shaft sleeve (50); a first liquid guide groove (5111) which is communicated with the first liquid storage groove (521) to guide the liquid in the first liquid storage groove (521) to the contact surface of the rotating shaft (41) and the front shaft sleeve (50) is arranged on the contact surface of the front shaft sleeve (50) and the rotating shaft (41);

a second reservoir (621) for storing lubricant is arranged on the rear shaft sleeve (60); and a second liquid guide groove (6111) communicated with the second liquid storage groove (621) is arranged on the contact surface of the front shaft sleeve (50) and the rotating shaft (41) to guide the liquid in the second liquid storage groove (621) to the contact surface of the rotating shaft (41) and the front shaft sleeve (50).

2. A reluctance machine according to claim 1, wherein said first liquid-guiding groove (5111) is helical;

and/or the second liquid guide groove (6111) is spiral.

3. A reluctance motor according to claim 1, wherein the front shaft sleeve (50) is inserted into the front end cover (10) and comprises a first sleeve portion (51) sleeved on the rotating shaft (41) and a first matching portion (52) arranged at one end of the first sleeve portion (51) and matched with the front end cover (10);

the radial dimension of the first matching part (52) is larger than that of the first sleeving part (51) so as to be arranged on one side of the front end cover (10) opposite to the stator assembly (30);

the first sleeving part (51) comprises a first through hole (511) for the rotating shaft (41) to penetrate through;

the first liquid guide groove (5111) is arranged on the inner side wall of the first through hole (511);

the first reservoir (521) is provided on the first fitting portion (52).

4. A reluctance motor according to claim 3, wherein the first sleeving part (51) is provided with a first opening (512) communicated with the first through hole (511) for the rotating shaft (41) to penetrate through;

the inner side wall of the first opening (512) is provided with a first chamfer structure (513) matched with the rotating shaft (41).

5. A reluctance motor according to claim 1, wherein the rear shaft sleeve (60) is inserted into the rear end cap (20) and comprises a second sleeving part (61) sleeved on the rotating shaft (41) and a second matching part (62) arranged at one end of the second sleeving part (61) and matched with the rear end cap (20);

the radial dimension of the second matching part (62) is larger than that of the second sleeving part (61) so as to be arranged on one side of the rear end cover (20) opposite to the stator assembly (30);

the second sleeving part (61) comprises a second through hole (611) for the rotating shaft (41) to penetrate;

the second liquid guide groove (6111) is arranged on the inner side wall of the second through hole (611);

the second reservoir (621) is provided on the second fitting portion (62).

6. A reluctance motor according to claim 5, wherein the second sleeving part (61) is provided with a second opening (612) communicated with the second through hole (611) for the penetration of the rotating shaft (41);

and a second chamfer structure (613) matched with the rotating shaft (41) is arranged on the inner side wall of the second opening (612).

7. A reluctance machine according to claim 1, wherein said front bushing (50) is integrally formed with said front cover (10);

and/or the rear shaft sleeve (60) and the rear end cover (20) are integrally formed.

8. A reluctance machine according to claim 1, wherein said stator assembly (30) comprises a stator core (31), and an armature winding (32) fitted over said stator core (31);

the front end cover (10) and the rear end cover (20) are respectively arranged at two ends of the stator core (31) and detachably connected with the stator core (31).

9. A reluctance machine according to claim 8, wherein a first clamping structure is arranged between the front end cover (10) and the stator core (31);

the first clamping structure comprises a first clamping groove (11) which is arranged on the inner side of the front end cover (10) and sleeved on the stator core (31);

a second clamping structure is arranged between the rear end cover (20) and the stator core (31);

the second clamping structure comprises a second clamping groove which is arranged on the inner side of the rear end cover (20) and sleeved on the stator core (31).

10. A reluctance machine according to claim 1, wherein both the front sleeve (50) and the rear sleeve (60) are ceramic sleeves.

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