CN211127511U

CN211127511U - Brushless phase gradual change formula coreless motor

Info

Publication number: CN211127511U
Application number: CN201922463820.5U
Authority: CN
Inventors: 黄坚钊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-28
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a brushless phase place gradual change formula coreless motor, including double-deck cup ring stator, the bottom fixed mounting of double-deck cup ring stator has protecgulum bearing frame, the top fixed mounting of double-deck cup ring stator has back lid bearing frame, the inside both sides fixed mounting of double-deck cup ring stator has electric drive coil, outer magnet steel and interior magnet steel have been cup jointed to the surface and the internal surface of rotor cup ring, and the bottom fixed mounting of magnet steel has rotor turntable, and rotor turntable's bottom is run through and is provided with the rotor shaft, and the lower extreme of rotor shaft runs through protecgulum bearing frame and extends to the outside of protecgulum bearing frame. The utility model discloses the motor performance is superior, and the big moment of torsion of power is high during the use, has improved the coreless motor and has used in the field of the higher scope of motor power and torque requirement, and the magnetic force utilization ratio of magnet steel all more than two-thirds when the motor operation (be present miniwatt coreless motor instantaneous operation magnet steel magnetic force utilization ratio more than one time), and the torque lasts no torque pulsation, and the torque is high, fixes a position accurately.

Description

Brushless phase gradual change formula coreless motor

Technical Field

The utility model relates to the technical field of motors, specifically be a brushless phase place gradual change formula coreless motor.

Background

The coreless motor belongs to a direct-current permanent magnet servo and control motor, and can be classified into a micro motor, the coreless motor has the outstanding energy-saving characteristic, the sensitive and convenient control characteristic and the stable operation characteristic, the technical advancement is very obvious, the coreless motor is used as a high-efficiency energy conversion device and represents the development direction of the motor in many fields, the current coreless motor is a direct-current coreless servo micro motor, the performances are very excellent, but the defect is that the power is low and the torque is low, so that the use of the coreless motor in the range with higher requirements on the motor power and the torque is restricted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless phase place gradual change formula coreless motor possesses the high advantage of the big moment of torsion of power, has solved the low problem of the little moment of torsion of current coreless motor power.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a brushless phase place gradual change formula coreless motor, includes double-deck cup ring stator, the bottom fixed mounting of double-deck cup ring stator has the protecgulum bearing frame, the top fixed mounting of double-deck cup ring stator has back lid bearing frame, the inside fixed mounting of double-deck cup ring stator has interior magnet steel, the surface of interior magnet steel has cup jointed outer magnet steel, the bottom fixed mounting of outer magnet steel has the rotor, the bottom of rotor is run through and is provided with the rotor spindle, the lower extreme of rotor spindle runs through protecgulum bearing frame and extends to the outside of protecgulum bearing frame, the coded disc has been cup jointed on the surface that the top of double-deck cup ring stator inner chamber just is located the rotor spindle upper end.

Preferably, the inner layer cavity wall of the stator is provided with an inner driving winding, the outer layer cavity wall of the stator is provided with an outer driving winding to form a thin-wall U-shaped cavity, the inner wall of the rotor cup is inlaid with inner magnetic steel, the outer wall of the rotor cup is inlaid with outer magnetic steel, and a certain gap is ensured between the rotor cup and the stator U-shaped cavity when the rotor is sleeved in the stator U-shaped cavity for matching.

Preferably, bearings are embedded in the front cover bearing seat and the rear cover bearing seat, and the lower end of the rotor shaft penetrates through the bearing at the bottom and extends to the outside.

Preferably, the mounting holes are formed in the surface edges of the front cover bearing seat and the rear cover bearing seat, and the front cover bearing seat, the rear cover bearing seat and the double-layer cup ring stator are connected through bolts.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses the motor performance is superior, and the big moment of torsion of power is high during the use, has improved the coreless motor and has used in the field of the higher scope of motor power and torque requirement, and the magnetic force utilization ratio of magnet steel all more than two-thirds when the motor operation (be present miniwatt coreless motor instantaneous operation magnet steel magnetic force utilization ratio more than one time), and the torque lasts no torque pulsation, and the torque is high, fixes a position accurately.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

fig. 3 is a cross-sectional view of the present invention;

FIG. 4 is a diagram illustrating the operation of the present invention;

fig. 5 is a working state diagram of the motor rotor of the present invention.

In the figure: 1. a double-layer cup ring stator; 2. a front cover bearing block; 3. a rear cover bearing block; 4. internal magnetic steel; 5. external magnetic steel; 6. a rotor; 7. a rotor shaft; 8. code disc; 9. an outer drive winding; 10. an inner drive winding; 11. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description herein, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings to facilitate the description of the patent and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the patent. In the description of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-5, a brushless phase-changing coreless motor includes a double-layered cup ring stator 1, a front cover bearing seat 2 is fixedly installed at the bottom of the double-layered cup ring stator 1, bearings 11 are embedded in the front cover bearing seat 2 and the rear cover bearing seat 3, the lower end of a rotor shaft 7 penetrates through the bottom bearing 11 and extends to the outside, mounting holes are respectively formed at the surface edges of the front cover bearing seat 2 and the rear cover bearing seat 3, the front cover bearing seat 2, the rear cover bearing seat 3 and the double-layered cup ring stator 1 are connected by bolts, the rear cover bearing seat 3 is fixedly installed at the top of the double-layered cup ring stator 1, inner magnetic steel 4 is fixedly installed in the double-layered cup ring stator 1, an inner driving winding 9 is installed on the inner layer cavity wall of the stator 1, an outer driving winding 10 is installed on the outer layer cavity wall, a thin-wall U-shaped cavity is formed, inner magnetic steel 4 is embedded on the inner wall of an outer magnetic cup 6, and steel 5 is embedded, the rotor 6 guarantees to have certain clearance each other when the 1U type inner chamber cooperation of stator is advanced to the cover, outer magnet steel 5 has been cup jointed on the surface of interior magnet steel 4, outer magnet steel 5's bottom fixed mounting has rotor 6, rotor 6's bottom is run through and is provided with rotor shaft 7, rotor shaft 7's lower extreme runs through protecgulum bearing frame 2 and extends to protecgulum bearing frame 2's outside, the top of double-deck cup ring stator 1 inner chamber and the surface that is located the rotor shaft 7 upper end have been cup jointed coded disc 8, the motor performance is superior, and power big moment of torsion is high during the use, it uses in the field of the higher scope of motor power and torque requirement to have improved the coreless motor, and the magnetic force utilization ratio of magnet steel all is more than two-thirds when the motor moves (be more than one time of present low-power coreless motor instantaneous operation magnet steel magnetic force utilization ratio), the torque.

The working principle is as follows: the inner and outer magnetic steels are divided into multiple poles by even numbers and are fully embedded along inner and outer cup rings of the rotor according to N → S → N → S … …, the width of the winding phase is based on the width of the magnetic steel, the winding is fully wound and fixed on two sides of the cavity wall of the stator U-shaped cavity in a rectangular tooth shape according to the width height of the magnetic pole, a single or a plurality of wires are used as a group, the group is a small phase group, more than three groups are used as a phase, and the sequence of switching on, switching off and turning over of each small phase group is controlled by the position signal of the code disc to realize the start-; for example, fig. 4 shows a phase with three minor phase groups: when the A/B/C/is simultaneously connected with a power supply in the same direction, acting forces with the same magnitude and the opposite directions are formed between the magnetic poles and the conducting wires according to the left-hand rule and the current phase position, and at the moment, the motor rotor is not moved and is in a braking state; when A1 and A2 are disconnected, the motor rotor rotates by an angle of A1 phase width as shown in figure (5); when B1 and B2 are disconnected, A1 and A2 are turned over and electrified, and the motor rotor rotates by an angle of B1 phase width; at the moment, C1 and C2 are disconnected, B1 and B2 are turned over and electrified, and the motor rotor rotates by an angle of C1 phase width; the small phase group is gradually changed and circulated, so that the motor rotor can continuously run; the gradual change mode of little phase combination has realized the gradual change formula conversion of phase place, and such advantage is that the magnetic force utilization ratio of magnet steel all is more than two-thirds when the motor operation (be present miniwatt coreless motor instantaneous operation magnet steel magnetic force utilization ratio more than one time), and the torque lasts no torque pulsation, and the torque is high, and the location is accurate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a brushless phase gradual change formula coreless motor, includes double-deck cup ring stator (1), its characterized in that: the improved double-layer cup ring stator is characterized in that a front cover bearing seat (2) is fixedly mounted at the bottom of the double-layer cup ring stator (1), a rear cover bearing seat (3) is fixedly mounted at the top of the double-layer cup ring stator (1), inner magnetic steel (4) is fixedly mounted inside the double-layer cup ring stator (1), outer magnetic steel (5) is sleeved on the surface of the inner magnetic steel (4), a rotor (6) is fixedly mounted at the bottom of the outer magnetic steel (5), a rotor shaft (7) is arranged at the bottom of the rotor (6) in a penetrating mode, the lower end of the rotor shaft (7) penetrates through the front cover bearing seat (2) and extends to the outside of the front cover bearing seat (2), and a coded disc (8) is sleeved on the surface of the upper end of the rotor shaft (7) above the inner cavity of the double.

2. A brushless phase-graduating coreless motor as in claim 1, wherein: an inner driving winding (9) is arranged on the inner layer cavity wall of the stator (1), an outer driving winding (10) is arranged on the outer layer cavity wall of the stator (1) to form a thin-wall U-shaped cavity, inner magnetic steel (4) is inlaid on the inner wall of the rotor (6) cup, outer magnetic steel (5) is inlaid on the outer wall of the rotor cup, and a certain gap is guaranteed between the rotor (6) and the stator (1) when the rotor (6) is sleeved into the U-shaped cavity of the stator (1).

3. A brushless phase-graduating coreless motor as in claim 1, wherein: the bearing (11) are embedded in the front cover bearing seat (2) and the rear cover bearing seat (3), and the lower end of the rotor shaft (7) penetrates through the bearing (11) at the bottom and extends to the outside.

4. A brushless phase-graduating coreless motor as in claim 1, wherein: the mounting hole has all been seted up to the surperficial edge of protecgulum bearing frame (2) and back lid bearing frame (3), and is connected through the bolt between protecgulum bearing frame (2) and back lid bearing frame (3) and double-deck cup ring stator (1).