CN209881510U - High-performance rotor for brushless direct current motor - Google Patents

Abstract

The utility model discloses a rotor for high performance brushless DC motor relates to motor technical field. This rotor for high performance brushless DC motor, including the fixed part, the welding of the top center department of fixed part has fixed pipe, and first screw hole has evenly been seted up all around that the top of fixed part is located fixed pipe, and the outside cover of fixed pipe is equipped with the rotor iron plate. This rotor for high performance brushless DC motor, when using, can carry out the aggregate erection to rotor iron plate and permanent magnet respectively through first hexagon socket head cap screw and second hexagon socket head cap screw, easily install on the one hand and follow the trade with the later stage, on the other hand has reduced the production technology requirement, reduce process flow, the manufacturing cost is reduced, the permanent magnet of setting is fixed through two second hexagon socket head cap screws, the permanent magnet is in the spacing inslot that the rotor iron plate was seted up, make the rotor iron plate carry out quadratic spacing fixed to the permanent magnet, avoid the permanent magnet to take place to drop, guarantee the stability of magnetism and the security of motor.

Description

High-performance rotor for brushless direct current motor

Technical Field

The utility model relates to a motor technical field specifically is rotor for high performance brushless direct current motor.

Background

The rotor of an electric machine is colloquially said to be the rotating part of the electric machine. The device is used for realizing conversion between electric energy and mechanical energy and between mechanical energy and electric energy. The direct current brushless motor is more and more widely applied due to the advantages of high efficiency, energy conservation and the like. The principle is that the magnetic field of a rotor of the MOTOR is coupled with the magnetic field of a stator to generate torque, the stator is generally provided with a magnetic field by a winding and the rotor is generally provided with a magnetic field by a permanent magnet, and the BLDC MOTOR rotor is divided into an inner rotor rotating mode and an outer rotor rotating mode. The inner rotor is currently manufactured in two categories: plastic magnetic type and ferromagnetic type. The ferromagnetic type ROTOR is manufactured by adhering a permanent magnet to an iron core, the process flow is complex, the permanent magnet is easy to fall off, the motor characteristics are unstable, the price is high, the plastic magnetic type ROTOR is manufactured by directly putting a shaft into a mold to use BMC for injection molding, the price is low, but the magnetism is unstable, and the requirement of a user on the ROTOR for the brushless direct current motor cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a rotor for high performance brushless DC motor, the device adopt combination formula equipment mode, have reduced process flow, and easily production, permanent magnet fix through second hexagon socket head cap screw, simultaneously, wrap up through the rotor iron plate, carry out the secondary and fix, are difficult for droing, guarantee magnetic stability.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: rotor for high performance brushless DC motor, including the fixed part, the welding of top center department of fixed part has fixed pipe, first screw hole has evenly been seted up all around that the top of fixed part is located fixed pipe, the outside cover of fixed pipe is equipped with the rotor iron plate, and the embedded first interior hexagonal screw that is equipped with of rotor iron plate to the one end of first interior hexagonal screw extends to in the first threaded hole, the spacing groove has evenly been seted up in the rotor iron plate lieing in the outside, two second screw holes have all been seted up to the top of fixed part is located the spacing inslot, the top of fixed part is located the spacing inslot and is fixed with the permanent magnet through two second screw holes and two second interior hexagonal screws.

Preferably, a groove is formed in the inner wall of the fixing pipe, the rotor shaft is embedded in the fixing pipe in a sliding manner, a third inner hexagonal screw is embedded in the fixing pipe, and one end of the third inner hexagonal screw extends into the rotor shaft.

Preferably, the rotor shaft contains thin axle and thick axle, one side extension of thick axle is provided with the sand grip, and the sand grip is located the recess.

Preferably, a through hole is formed in the thin shaft, and one side of the thin shaft is planar.

Preferably, the outer wall of the permanent magnet extends to form a triangular protrusion, and the triangular protrusion extends into the rotor iron block.

Preferably, the number of the permanent magnets is eight, and the connecting lines of the eight permanent magnets are circular.

The utility model provides a rotor for high performance brushless DC motor. The method has the following beneficial effects:

(1) this rotor for high performance brushless DC motor when using, can carry out the aggregate erection to rotor iron plate and permanent magnet respectively through first hexagon socket head cap screw and second hexagon socket head cap screw, easily install on the one hand and follow the trade in later stage, on the other hand has reduced the production technology requirement, reduces process flow, has reduced manufacturing cost.

(2) This high performance brushless DC motor rotor, the permanent magnet of setting is fixed through two second hexagon socket head cap screws, and the permanent magnet is in the spacing inslot that the rotor iron plate was seted up for the rotor iron plate carries out quadratic spacing fixed to the permanent magnet, avoids the permanent magnet to take place to drop, ensures the stability of magnetic and the security of motor.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic plan view of the permanent magnet of the present invention;

FIG. 4 is a schematic view of a rotor iron block of the present invention;

fig. 5 is a schematic view of the rotor shaft of the present invention.

In the figure: 1. a fixed part; 101. a first threaded hole; 102. a second threaded hole; 2. a permanent magnet; 3. a rotor iron block; 301. a limiting groove; 4. a fixed tube; 401. a groove; 5. a third socket head cap screw; 6. a rotor shaft; 601. a thin shaft; 602. a coarse shaft; 603. a convex strip; 604. a through hole; 7. a first socket head cap screw; 8. a second socket head cap screw.

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 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution: a rotor for a high-performance brushless direct current motor comprises a fixing part 1, wherein a fixing pipe 4 is welded at the center of the top of the fixing part 1, first threaded holes 101 are uniformly formed in the top of the fixing part 1, the periphery of the fixing pipe 4 is provided with a rotor iron block 3 in a sleeved mode, a first inner hexagonal screw 7 is embedded in the rotor iron block 3, one end of the first inner hexagonal screw 7 extends into the first threaded hole 101, a limiting groove 301 is uniformly formed in the rotor iron block 3 at the outer side, two second threaded holes 102 are formed in the top of the fixing part 1, which is located in the limiting groove 301, two second threaded holes 102 and two second inner hexagonal screws 8 are used for fixing a permanent magnet 2, when the rotor iron block 3 and the permanent magnet 2 are assembled and installed through the first inner hexagonal screw 7 and the second inner hexagonal screw 8 respectively, make the device easily install on the one hand and later maintenance, on the other hand has reduced the production technology requirement, reduces process flow, has reduced manufacturing cost, and easy to use, rotor iron plate 3 can carry on spacingly to permanent magnet 2 for rotor iron plate 3 carries out quadratic spacing fixed to permanent magnet 2, avoids permanent magnet 2 to take place to drop, ensures the stability of magnetism and the security of motor.

A designer sets a groove 401 on the inner wall of a fixed pipe 4, a rotor shaft 6 is embedded in the fixed pipe 4 in a sliding manner, a third inner hexagon screw 5 is embedded in the fixed pipe 4, one end of the third inner hexagon screw 5 extends into the rotor shaft 6, the rotor shaft 6 comprises a thin shaft 601 and a thick shaft 602, one side of the thick shaft 602 extends to be provided with a convex strip 603, the convex strip 603 is positioned in the groove 401, a through hole 604 is formed in the thin shaft 601, one side of the thin shaft 601 is planar, a triangular bulge is arranged on the outer wall of a permanent magnet 2 in an extending manner and extends into a rotor iron block 3, the number of the permanent magnets 2 is eight, the connecting line of the eight permanent magnets 2 is annular, the arranged triangular bulge can enable the connection of the remaining rotor iron blocks 3 of the permanent magnets 2 to be more stable, the rotor shaft 6 is inserted into the fixed pipe 4, the convex strip 603 is positioned in the groove 401, and the rotor shaft 6 is fixed through the third inner hexagon, the mounting of the rotor shaft 6 is achieved.

During the use, place rotor iron plate 3 on fixed part 1, fix rotor iron plate 3 through first hexagon socket head cap screw 7, place permanent magnet 2 again in spacing groove 301, fix through second hexagon socket head cap screw 8, can insert rotor shaft 6 in the solid fixed tube 4, make sand grip 603 be located recess 401, fix rotor shaft 6 through third hexagon socket head cap screw 5, even it is fixed with solid fixed tube 4 to get rotor shaft 6, the device adopts the combination formula mounting means, be convenient for carry out the maintenance in later stage and change, the production process flow has also been reduced, easy to produce, permanent magnet 2 of setting is fixed through second hexagon socket head cap screw 8, because permanent magnet 2 is located spacing groove 301, make rotor iron plate 3 can fix permanent magnet 2, guarantee permanent magnet 2 stability when using.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. Rotor for high performance brushless direct current motor, including fixed part (1), its characterized in that: the welding of top center department of fixed part (1) has fixed pipe (4), first screw hole (101) have evenly been seted up all around that the top of fixed part (1) is located fixed pipe (4), the outside cover of fixed pipe (4) is equipped with rotor iron plate (3), and embedded first interior hexagonal screw (7) that are equipped with of rotor iron plate (3) to the one end of first interior hexagonal screw (7) extends to in first screw hole (101), lie in the outside in rotor iron plate (3) and evenly seted up spacing groove (301), two second screw holes (102) have all been seted up in spacing groove (301) at the top of fixed part (1) is located spacing groove (301), the top of fixed part (1) is located spacing groove (301) and is fixed with permanent magnet (2) through two second screw holes (102) and two second interior hexagonal screws (8).

2. The rotor for a high-performance brushless dc motor according to claim 1, wherein: offer on the inner wall of fixed pipe (4) fluted (401), it is equipped with rotor shaft (6) to slide to inlay in fixed pipe (4), the embedded third socket head cap screw (5) that is equipped with in fixed pipe (4), and the one end of third socket head cap screw (5) extends to in rotor shaft (6).

3. The rotor for a high-performance brushless dc motor according to claim 2, wherein: rotor shaft (6) contain thin axle (601) and thick axle (602), one side extension of thick axle (602) is provided with sand grip (603), and sand grip (603) are located recess (401).

4. The rotor for a high-performance brushless dc motor according to claim 3, wherein: a through hole (604) is formed in the thin shaft (601), and one side of the thin shaft (601) is planar.

5. The rotor for a high-performance brushless dc motor according to claim 1, wherein: the outer wall of the permanent magnet (2) is provided with a triangular protrusion in an extending mode, and the triangular protrusion extends into the rotor iron block (3).

6. The rotor for a high-performance brushless dc motor according to claim 1, wherein: the number of the permanent magnets (2) is eight, and connecting lines of the eight permanent magnets (2) are circular.