Direct-current brushless motor adopting double-winding structure
Technical Field
The utility model relates to a brushless motor field, in particular to adopt brushless DC motor of duplex winding structure.
Background
The DC motor has the best performance among various servo motors, and has the advantages of small volume, high efficiency, large output, large starting torque, good dynamic performance and convenient control. Therefore, in a high-precision and high-performance servo control system, a dc motor is often used as a driving actuator. The brushless DC motor is a new type of DC motor in which the brush and commutator are replaced by electronic commutation switches and position sensors. The motor consists of three parts, namely a controller, a rotor position detector and a motor body, and is a product of close combination of an electronic technology and a motor technology. The high-speed-regulating motor has the characteristics of high efficiency, wide speed-regulating range, quick start, good mechanical property and regulating property, long service life, convenient maintenance, high reliability, low noise, no reversing spark, no radio interference and the like.
The existing double-winding brushless motor can be provided with a self-radiating mechanism generally, and the fan blades are driven to rotate through the rotor to achieve the radiating purpose, but a large amount of dust can be accumulated on the fan blades after the mechanism is used for a long time, and the radiating fan blades on the existing brushless motor are inconvenient to detach and replace, can not be quickly cleaned, and the working efficiency of the motor is reduced. Therefore, it is necessary to provide a brushless dc motor having a dual winding structure to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an adopt the brushless DC motor of duplex winding structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a direct current brushless motor adopting a duplex winding structure comprises a motor shell, wherein one end of the motor shell is fixedly connected with a front end cover through a locking screw, a duplex winding stator is arranged inside one end of the motor shell, a pressing block is fixedly connected to the inner side of the front end cover and is connected with one end of the duplex winding stator in an attaching mode, a rotor is connected to the middle of an inner cavity of the motor shell in a penetrating mode, one end of the rotor is movably connected with the middle of the front end cover through a sealing bearing, a heat dissipation cavity is formed in the other end of the motor shell, the other end of the rotor is inserted into the heat dissipation cavity, a fan assembly is arranged on the outer side of the other end of the rotor and is located in the heat dissipation cavity, fins are fixedly connected to the bottom edge of the heat dissipation cavity, an air inlet net opening is formed in the side wall of the heat dissipation cavity, and an air outlet net port is formed at the edge of the rear end cover.
Preferably, the fins and the air inlet net openings are arranged in a plurality, and the fins and the air inlet net openings are distributed in an annular array.
Preferably, the fins are arranged in an arc-shaped structure, and a plurality of through holes distributed at equal intervals are formed in the fins.
Preferably, the fan assembly comprises a stop block fixed on the outer side of the other end of the rotor, the stop block is of an annular structure, one side of the stop block is connected with a fan blade in a laminating mode, and the middle of the fan blade is sleeved on the outer side of the other end of the rotor.
Preferably, a plurality of locating pieces that are the annular array and distribute are fixedly connected with one side in the middle part of flabellum, a plurality of constant head tanks that are the annular array and distribute are seted up to one side of dog, the locating piece is located the inside of constant head tank, the opposite side laminating of flabellum is connected with stop nut, stop nut passes through the other end fixed connection of internal and external screw thread and rotor.
Preferably, the equal fixedly connected with in one side both ends of flabellum extends the board, two of two relative settings extend the interval of board and be greater than the thickness of fin, two extend the equal fixedly connected with cleaning brush in one side that the board is close to each other.
The utility model discloses a technological effect and advantage:
the utility model discloses a be provided with the heat dissipation chamber at motor housing's the other end, the fan unit cooperation fin of heat dissipation intracavity can be with the quick scattering of the heat that produces in the middle part of the electronic work process, has improved the radiating effect of this device, sets up the flabellum in the fan unit into detachable construction simultaneously for the flabellum is convenient for dismantle after long-time washs, and two on the flabellum extend the board cooperation cleaning brush on it can clear up the dust on the fin, have improved the radiating efficiency of this device.
Drawings
Fig. 1 is a schematic sectional view of the overall structure of the present invention.
Fig. 2 is a schematic side view of the fin structure of the present invention.
Fig. 3 is a schematic sectional view of the fan assembly according to the present invention.
In the figure: 1. a motor housing; 2. a front end cover; 3. a double-winding stator; 4. a compression block; 5. a rotor; 6. a heat dissipation cavity; 7. a fan assembly; 8. a fin; 81. a through hole; 9. an air inlet net port; 10. a rear end cap; 11. an air outlet net port; 12. a stopper; 13. a fan blade; 14. positioning blocks; 15. positioning a groove; 16. a limit nut; 17. an extension plate; 18. a cleaning brush.
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.
The utility model provides a direct current brushless motor adopting a duplex winding structure as shown in figures 1-3, as shown in figure 1, comprising a motor shell 1, one end of the motor shell 1 is fixedly connected with a front end cover 2 through a locking screw, a duplex winding stator 3 is arranged inside one end of the motor shell 1, the inner side of the front end cover 2 is fixedly connected with a pressing block 4, the pressing block 4 is connected with one end of the duplex winding stator 3 in a laminating way, the middle part of the inner cavity of the motor shell 1 is connected with a rotor 5 in a penetrating way, one end of the rotor 5 is movably connected with the middle part of the front end cover 2 through a sealing bearing, the other end of the motor shell 1 is provided with a heat dissipation cavity 6, the other end of the rotor 5 is inserted into the heat dissipation cavity 6, the outer side of the other end of the rotor 5 is provided with a fan component 7, the fan component 7 is positioned in the heat dissipation cavity 6, the bottom edge of the heat dissipation cavity, the air inlet net port 9 is formed in the side wall of the heat dissipation cavity 6, the other end of the motor shell 1 is fixedly connected with the rear end cover 10 through the locking screw, the air outlet net port 11 is formed in the edge of the rear end cover 10, the air inlet net port 9 and the air outlet net port 11 are matched to play a role in air inlet and air outlet, and meanwhile large-particle impurities in the outside air can be prevented from entering the heat dissipation cavity 6.
As shown in fig. 2, fin 8 and air inlet net gape 9 all are provided with a plurality ofly, and a plurality of fins 8 and air inlet net gape 9 all are the annular array and distribute, and fin 8 sets up to the arc structure, has seted up a plurality of through-holes 81 that are equidistant distribution on fin 8, and the setting of through-hole 81 has improved fin 8's radiating effect.
As shown in fig. 3, the fan assembly 7 includes a stop 12 fixed at the outer side of the other end of the rotor 5, the stop 12 is set to be an annular structure, one side of the stop 12 is connected with a fan blade 13 in an attaching manner, the fan blade 13 rotates along with the rotor 5 to perform an air cooling and heat dissipating function, the middle portion of the fan blade 13 is sleeved at the outer side of the other end of the rotor 5, one side of the middle portion of the fan blade 13 is fixedly connected with a plurality of positioning blocks 14 distributed in an annular array manner, one side of the stop 12 is provided with a plurality of positioning slots 15 distributed in an annular array manner, the positioning blocks 14 are located inside the positioning slots 15, the positioning blocks 14 are matched with the positioning slots 15 to limit the fan blade 13, so that the fan blade 13 can rotate along with the rotor 5, the other side of the fan blade 13 is connected with a limit nut 16 in an, the extension board 17 of two relative settings of one side both ends equal fixedly connected with of flabellum 13, the interval of two extension boards 17 is greater than the thickness of fin 8, two extension boards 17 equal fixedly connected with cleaning brush 18 in one side that is close to each other, and cleaning brush 18 on two extension boards 17 cooperation are can clear up the dust in fin 8 both sides.
The utility model discloses the theory of operation:
this device is at the during operation, rotor 5 drives flabellum 13 on the fan subassembly 7 and rotates, flabellum 13 takes outside air out to heat dissipation chamber 6 through air inlet net mouth 9, the heat on fin 8 is taken away and is discharged through air outlet net mouth 11 to outside cold air, the quick radiating effect has been reached, flabellum 13 drives two extension boards 17 to rotate when rotating, two extension boards 17 cooperate the cleaning brush 18 on it can clear up the adnexed dust in fin 8 both sides, the radiating efficiency of this device has been improved, when flabellum 13 needs to be cleared up when changing, after this moment unpack apart rear end cap 10, then twist stop nut 16, separate stop nut 16 and rotor 5, then outwards remove flabellum 13, until locating piece 14 and the constant head tank 15 separation on flabellum 13, can dismantle the change flabellum 13 this moment.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.