CN112398262A

CN112398262A - Industrial rare earth permanent magnet motor

Info

Publication number: CN112398262A
Application number: CN202011406815.1A
Authority: CN
Inventors: 刘楷; 林有余; 陈伟; 汪洋; 周建辉
Original assignee: Jiangsu Sumec Hardware and Tools Co Ltd
Current assignee: Jiangsu Sumec Hardware and Tools Co Ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-02-23

Abstract

The invention relates to the technical field of motors and discloses an industrial rare earth permanent magnet motor which comprises a motor shell, wherein a rotating shaft is arranged in the center of the interior of the motor shell, a rotor is fixedly arranged on the outer side of the middle of the rotating shaft, a stator is arranged on the outer side of the rotor, a coil is fixedly connected to the interior of the stator, and the coil is arranged on a wiring terminal of the stator in a surrounding mode. This industrial rare earth permanent magnet motor, there are first baffle and second baffle through the outside parcel at rotor and stator, and the middle part of first baffle and second baffle all is equipped with the cavity inner chamber, and the middle part and the fresh air inlet intercommunication of first baffle, be convenient for drive the rotor plate in the pivot, big flabellum and little flabellum rotate the time, it is inside to drive the air current by the entering device of fresh air inlet department, and at first cavity, the inside formation inner loop of venthole, carry out effectual heat dissipation to the motor inside, second cavity and heating panel also can play fine radiating effect simultaneously, can improve the radiating efficiency of motor.

Description

Industrial rare earth permanent magnet motor

Technical Field

The invention relates to the technical field of motors, in particular to an industrial rare earth permanent magnet motor.

Background

The motor is an electromagnetic device which realizes the conversion or transmission of electric energy according to the law of electromagnetic induction, or converts one form of electric energy into another form of electric energy, the motor converts the electric energy into mechanical energy (commonly called as a motor), the generator converts the mechanical energy into the electric energy, along with the increasingly prominent changes of energy crisis and environmental protection problems, the traditional induction alternating current asynchronous motor (the motor and the generator) is gradually replaced by a permanent magnet high-efficiency motor, the rare earth permanent magnet motor is a novel permanent magnet motor which appears in the early 70 s, and the rare earth permanent magnet motor has a series of advantages of small volume, light weight, high efficiency, good characteristics and the like due to the high magnetic energy product and high coercive force of a rare earth permanent magnet.

However, the existing permanent magnet motor has very obvious defects in the using process, the neodymium iron boron rare earth permanent magnet material is easy to demagnetize, the neodymium iron boron rare earth permanent magnet material is easy to oxidize, the rare earth permanent magnet steel is easy to demagnetize after being oxidized, therefore, in the rare earth permanent magnet motor industry, some enterprises fill epoxy resin in the magnetic steel groove to isolate the contact between the magnetic steel and air, reduce the oxidation degree of the magnetic steel, but the rare earth permanent magnet motor is contacted to reduce the oxidation degree of the magnetic steel, but the temperature of the magnetic steel is sharply increased under the condition that the rare earth permanent magnet motor is out of step, when the heat can not be dissipated, the rare earth permanent magnet motor has irreversible demagnetization and failure conditions when the temperature of the rare earth permanent magnet material exceeds 180 ℃, the rare earth permanent magnet motor is easy to break under the conditions of severe vibration or large temperature difference, and the rare earth permanent magnet motor is out of operation due to loss of magnetism, so that the rare earth permanent magnet motor is not beneficial to normal use of the motor.

Disclosure of Invention

The invention provides an industrial rare earth permanent magnet motor, which has the advantages of oxidation prevention, good heat dissipation effect and a damping and buffering structure, and solves the problems in the background art.

The invention provides the following technical scheme: an industrial rare earth permanent magnet motor comprises a motor shell, a rotating shaft is arranged in the center of the interior of the motor shell, a rotor is fixedly arranged on the outer side of the middle part of the rotating shaft, a stator is arranged on the outer side of the rotor, a coil is fixedly connected inside the stator, the coil is arranged on a binding post of the stator in a surrounding way, a first clapboard and a second clapboard are fixedly arranged on the outer side of the stator, a first cavity is arranged in the first clapboard, a rotating plate fixedly arranged at the bottom end of the rotating shaft is arranged at one side of the first cavity, a small fan blade is fixedly arranged on the surface of one side of the rotating plate, a large fan blade is fixedly arranged on the surface of the other side of the rotating plate, an air inlet hole is arranged in the middle of the rotating plate, an air outlet hole is arranged on the outer side of the first cavity, a second cavity is formed in the second partition plate, and a heat dissipation plate is fixedly mounted in the second cavity.

Preferably, motor housing's the outside is equipped with the support frame, the through-hole has all been seted up at the both ends of support frame, the inside movable mounting of through-hole has the link, the link is the U word form and spanes at the through-hole middle part at both ends, and the bottom of link installs the connecting plate, the upper portion fixed mounting of connecting plate has the spring, the top fixed connection of spring is on the inner wall of support frame, the bottom fixed mounting of support frame has the supporting leg.

Preferably, the number of the connecting frames and the connecting plates is six, and six of the connecting frames and the connecting plates are arranged around the outer circumference of the motor shell.

Preferably, the rotor is installed in the outside of pivot in the T form, and the both sides of rotor respectively in first baffle and second baffle joint.

Preferably, the air outlet is a long-strip-shaped through hole, the air outlet surrounds the outer periphery of the first cavity, and the first cavity is communicated with the motor shell.

Preferably, the upper end of the heat dissipation plate is sector-shaped and is uniformly provided with tooth-shaped heat dissipation fins, and the heat dissipation plate is arranged in the second cavity in a surrounding manner for a circle.

Preferably, the small fan blade and the large fan blade are opposite in turning direction, and the fan width value of the small fan blade is smaller than that of the large fan blade.

The invention has the following beneficial effects:

1. this industrial rare earth permanent magnet motor, there are first baffle and second baffle through the outside parcel at rotor and stator, and the middle part of first baffle and second baffle all is equipped with the cavity inner chamber, and the middle part and the fresh air inlet intercommunication of first baffle, be convenient for drive the rotor plate in the pivot, big flabellum and little flabellum rotate the time, it is inside to drive the air current by the entering device of fresh air inlet department, and at first cavity, the inside formation inner loop of venthole, carry out effectual heat dissipation to the motor inside, second cavity and heating panel also can play fine radiating effect simultaneously, can improve the radiating efficiency of motor.

2. This industrial tombarthite permanent magnet motor, first baffle and second baffle carry out complete sealed parcel with rotor and stator, through the parcel that first baffle and second baffle formed the rotor, both guaranteed the cooling performance between rotor and the stator and avoid rotor and stator to appear exposing again, effectively avoid tombarthite permanent magnet oxidation corrosion to lead to the demagnetization, increase the life of device.

3. This industrial tombarthite permanent magnet motor, be equipped with heating panel and connecting plate through the outside at motor housing, and connecting plate and support frame connect through link and spring, and encircle the outside a week at motor housing, be convenient for carry out even omnidirectional elastic support to motor housing, avoid the motor to produce a large amount of vibrations at the circular telegram during operation, the link carries out the buffering of multi-angle to the vibrations of device during operation and adsorbs, reduce the influence of device vibrations to self inside permanent magnet, avoid the device to damage.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a rear view of the structure of the present invention;

FIG. 3 is a schematic view of the stand of the present invention;

FIG. 4 is an exploded view of the support frame of the present invention;

FIG. 5 is a schematic view of the internal structure of the present invention;

FIG. 6 is a sectional view showing the internal structure of the present invention;

FIG. 7 is an exploded view of the internal structure of the present invention;

FIG. 8 is a schematic view of a rotating plate according to the present invention.

In the figure: 1. a motor housing; 2. a rotating shaft; 3. a rotor; 4. a stator; 5. a coil; 6. a first separator; 7. a second separator; 8. a first cavity; 9. an air outlet; 10. a rotating plate; 11. an air inlet hole; 12. a small fan blade; 13. a large fan blade; 14. a second cavity; 15. a heat dissipation plate; 16. a support frame; 17. supporting legs; 18. a through hole; 19. a connecting frame; 20. a spring; 21. a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, an industrial rare earth permanent magnet motor includes a motor housing 1, a support frame 16 is disposed outside the motor housing 1, through holes 18 are disposed at both ends of the support frame 16, a connection frame 19 is movably mounted inside the through holes 18, the connection frame 19 crosses the middle of the through holes 18 at both ends in a U shape, a connection plate 21 is mounted at the bottom of the connection frame 19, a spring 20 is fixedly mounted at the upper portion of the connection plate 21, the top end of the spring 20 is fixedly connected to the inner wall of the support frame 16, a support leg 17 is fixedly mounted at the bottom of the support frame 16, a heat dissipation plate 15 and a connection plate 21 are disposed outside the motor housing 1, the connection plate 21 and the support frame 16 are connected through the connection frame 19 and the spring 20 and surround the outer circumference of the motor housing 1, thereby facilitating uniform and omni-directional elastic support of the motor housing 1 and avoiding a large amount of vibration generated, the connecting frame 19 carries out multi-angle buffering adsorption on the vibration of the device during working, the influence of the device vibration on the permanent magnet inside the device is reduced, the device is prevented from being damaged, the number of the connecting frame 19 and the connecting plate 21 is six, the six connecting frames 19 and the six connecting plates 21 are arranged around the outer circumference of the motor shell 1, the connecting frame 19 and the connecting plate 21 evenly support and wrap the outer part of the motor shell 1 in a surrounding manner, the vibration buffering capacity of the device in all directions is improved, the vibration noise of the device is reduced, the rotating shaft 2 is arranged at the center inside the motor shell 1, the rotor 3 is fixedly arranged on the outer side of the middle part of the rotating shaft 2, the rotor 3 is arranged on the outer side of the rotating shaft 2 in a T shape, the two sides of the rotor 3 are respectively clamped with the first partition plate 6 and the second partition plate 7, the first partition plate 6 and the second partition plate 7 are completely and hermetically wrapped with the rotor 3 and the stator 4, and the wrapping, the cooling performance between the rotor 3 and the stator 4 is ensured, the rotor 3 and the stator 4 are prevented from being exposed, demagnetization caused by oxidation corrosion of a rare earth permanent magnet is effectively avoided, the service life of the device is prolonged, the stator 4 is arranged on the outer side of the rotor 3, the coil 5 is fixedly connected inside the stator 4, the coil 5 is arranged on a binding post of the stator 4 in a surrounding manner, the first partition plate 6 and the second partition plate 7 are fixedly arranged on the outer side of the stator 4, the first partition plate 6 and the second partition plate 7 are wrapped on the outer sides of the rotor 3 and the stator 4, hollow inner cavities are formed in the middle parts of the first partition plate 6 and the second partition plate 7, the middle part of the first partition plate 6 is communicated with an air inlet hole 11, and when the rotating plate 10, the large fan blade 13 and the small fan blade 12 are driven by the rotating shaft 2 to rotate, air flow is driven to enter the device from the air inlet hole 11, and, a rotating plate 10 fixedly arranged at the bottom end of the rotating shaft 2 is arranged at one side of the first cavity 8, a small fan blade 12 is fixedly arranged at one side surface of the rotating plate 10, a large fan blade 13 is fixedly arranged at the other side surface of the rotating plate 10, the small fan blade 12 and the large fan blade 13 are fan blades with opposite turning directions, the fan width value of the small fan blade 12 is smaller than that of the large fan blade 13, the small fan blade 12 and the large fan blade 13 drive the air flow in the device to stably carry out conveying circulation, so that the heat generated in the rotating electrification process of the stator 4 and the rotor 3 can be uniformly and rapidly taken out, the damage caused by overheating is avoided, an air inlet 11 is arranged at the middle part of the rotating plate 10, an air outlet 9 is arranged at the outer side of the first cavity 8, the air outlet 9 is a strip-shaped through hole, the air outlet 9 is arranged around the outer circumference of the first cavity 8, and the first, and at first cavity 8, the inside inner loop that forms of venthole 9, carry out effectual heat dissipation to the motor inside, second cavity 14 and heating panel 15 also can play fine radiating effect simultaneously, can improve the radiating efficiency of motor, second cavity 14 has been seted up to the inside of second baffle 7, the inside fixed mounting of second cavity 14 has heating panel 15, the upper end of heating panel 15 is the sector form, and evenly install the cusp fin, heating panel 15 encircles and installs in the inside a week of second cavity 14, the installation of heating panel 15, be convenient for carry out thermal transfer to rotor 3 and stator 4, avoid the inside central heat of device to pile up, guarantee the steady operation of device.

The working principle is that the device is electrified, the stator 4 is electrified at the moment, a changing magnetic field rotating around the rotating shaft 2 is formed between the stator 4 and the coil 5, an electromagnetic force is further generated on the rare earth permanent magnet on the rotor 3 to drive the rotor 3 to rotate together with the rotating shaft 2, in the working process of the motor, the rotating shaft 2 drives the rotating plate 10 to rotate, so that the large fan blade 13 and the small fan blade 12 on the rotating plate 10 rotate to drive air flow to enter the device from the air inlet hole 11 and form internal circulation in the first cavity 8 and the air outlet hole 9 to effectively dissipate heat inside the motor, meanwhile, the second cavity 14 and the heat dissipation plate 15 can also play a good heat dissipation effect to improve the heat dissipation efficiency of the motor, and the first partition plate 6 and the second partition plate 7 wrap the rotor 3, so that the cooling performance between the rotor 3 and the stator 4 is ensured and the rotor 3 and the stator 4 are prevented from being exposed, effectively avoid tombarthite permanent magnet oxidation corrosion to lead to the demagnetization, increase the life of device, can.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. An industrial rare earth permanent magnet motor, includes motor housing (1), its characterized in that: the motor comprises a motor shell (1), a rotating shaft (2) is arranged at the center inside the motor shell (1), a rotor (3) is fixedly arranged on the outer side of the middle of the rotating shaft (2), a stator (4) is arranged on the outer side of the rotor (3), a coil (5) is fixedly connected inside the stator (4), the coil (5) is installed on a binding post of the stator (4) in a surrounding mode, a first partition plate (6) and a second partition plate (7) are fixedly installed on the outer side of the stator (4), a first cavity (8) is formed in the first partition plate (6), a rotating plate (10) fixedly installed at the bottom end of the rotating shaft (2) is arranged on one side of the first cavity (8), small fan blades (12) are fixedly installed on the surface of one side of the rotating plate (10), large fan blades (13) are fixedly installed on the surface of the other side of the rotating plate (10), and an air inlet hole (, the air outlet hole (9) is formed in the outer side of the first cavity (8), the second cavity (14) is formed in the second partition plate (7), and the heat dissipation plate (15) is fixedly mounted in the second cavity (14).

2. An industrial rare earth permanent magnet motor according to claim 1, characterized in that: the outside of motor housing (1) is equipped with support frame (16), through-hole (18) have all been seted up at the both ends of support frame (16), the inside movable mounting of through-hole (18) has link (19), link (19) are the U word form and span at the through-hole (18) middle part at both ends, and the bottom of link (19) installs connecting plate (21), the upper portion fixed mounting of connecting plate (21) has spring (20), the top fixed connection of spring (20) is on the inner wall of support frame (16), the bottom fixed mounting of support frame (16) has supporting leg (17).

3. An industrial rare earth permanent magnet motor according to claim 2, characterized in that: the number of the connecting frames (19) and the connecting plates (21) is six, and the connecting frames (19) and the connecting plates (21) are installed around the outer circumference of the motor shell (1).

4. An industrial rare earth permanent magnet motor according to claim 1, characterized in that: rotor (3) are the T form and install in the outside of pivot (2), and the both sides of rotor (3) are respectively in first baffle (6) and second baffle (7) joint.

5. An industrial rare earth permanent magnet motor according to claim 1, characterized in that: the air outlet holes (9) are long-strip-shaped through holes, the air outlet holes (9) are arranged around the outer side of the first cavity (8) for a circle, and the first cavity (8) is communicated with the motor shell (1).

6. An industrial rare earth permanent magnet motor according to claim 1, characterized in that: the upper end of the heat dissipation plate (15) is sector-shaped, toothed heat dissipation fins are uniformly arranged on the upper end of the heat dissipation plate, and the heat dissipation plate (15) is arranged in the second cavity (14) in a surrounding mode for a circle.

7. An industrial rare earth permanent magnet motor according to claim 1, characterized in that: the small fan blade (12) and the large fan blade (13) are opposite in turning direction, and the fan width value of the small fan blade (12) is smaller than that of the large fan blade (13).