CN106374710B

CN106374710B - Coreless motor

Info

Publication number: CN106374710B
Application number: CN201611003729.XA
Authority: CN
Inventors: 刘青; 李朝勋; 林宜致; 王薇; 李朝廷; 黄玮
Original assignee: Suzhou Kelin Aier Intelligent Technology Co ltd
Current assignee: Suzhou Kelin Aier Intelligent Technology Co ltd
Priority date: 2016-11-15
Filing date: 2016-11-15
Publication date: 2023-10-13
Anticipated expiration: 2036-11-15
Also published as: CN106374710A

Abstract

The invention discloses a coreless motor, which comprises a fixed part, an iron core, a coil, a rotating part and a magnet, wherein the rotating part can be installed on the fixed part in a relatively rotating way, the fixed part and the rotating part are correspondingly provided with a first through hole and a second through hole which are hollowed out, the iron core is fixedly installed on the side wall of the fixed part or the rotating part, the coil is wound on the outer surface of the circumference of the iron core, the ferromagnetic is correspondingly fixedly installed on the outer wall of the rotating part or the fixed part, the magnet and the coil are correspondingly positioned and relatively rotated, the first through hole and the second through hole in the center of the rotating part and the fixed part form an air channel, heat generated in the high-speed rotation process of the rotating part can be taken away by the air channel quickly, the rotating part also has the effect of a shell, the structure is more beneficial to heat dissipation and is simplified, the whole volume and the quality are reduced, the connection stability of the rotating part and the fixed part is high, the vibration is difficult in the use process and the application environment is wide.

Description

Coreless motor

Technical Field

The present invention relates to a motor, and more particularly, to a coreless motor.

Background

The traditional motor all includes shell, rotor, stator, iron core, coil, magnet and center pin, and rotor and stator are sealed in the shell, and the rotor is rotatory around the center pin, because rotor high-speed rotation can produce a large amount of heat, is difficult to dispel fast in the shell, and high temperature environment leads to the motor to burn out easily, influences motor life, and complicated structure leads to the motor with high costs, and rotational stability is poor, and whole volume and quality are big, can produce continuous vibrations in the rotation process, cause the puzzlement for special service environment.

Disclosure of Invention

In order to make up for the defects, the invention provides the coreless motor which has the advantages of simple structure, low manufacturing cost and high use stability, and can rapidly dissipate heat.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a coreless motor, includes mounting, iron core, coil, rotates piece and magnet, the rotation piece can relative pivoted installs on the mounting, and the first through-hole and the second through-hole that are formed with the fretwork that the rotation center department corresponds of mounting and rotation piece, iron core fixed mounting is on the lateral wall of mounting or rotation piece, and the coil twines on iron core circumference outside surface, and the fixed mounting that the magnet corresponds is on rotation piece or mounting lateral wall, and magnet and coil position correspond and relative rotation.

As a further improvement of the invention, at least one circle of annular groove structure is formed on the end face of one end of the fixing piece, at least one circle of annular protruding wall corresponding to the annular groove structure on the fixing piece is arranged on one side wall of the rotating piece, and the annular protruding walls on the rotating piece can be inserted into the circular arc groove structure of the fixing piece in a one-to-one correspondence manner.

As a further improvement of the invention, a plurality of iron cores are fixedly arranged on the outer side wall of the circumference of the fixing piece along the radial extension of the fixing piece, the magnet is fixedly arranged on the surface of one side of the rotating piece, and the magnet is coated on one side of the coil far away from the axial direction of the fixing piece.

As a further improvement of the invention, the circumferential outer side wall of the rotating member forms a bending edge facing to one side, and the magnet is fixedly arranged on the inner side surface of the bending edge.

As a further improvement of the invention, the bending edge on the rotating piece completely covers the fixing piece, and the iron core and the coil on the fixing piece.

As a further improvement of the invention, one end of the iron core, which is far away from the circumferential outer side wall of the fixed part, is provided with a bulge structure facing the direction of the rotating part, the bulge structure is provided with an annular groove concentric with the annular groove structure on the fixed part, and one side wall of the rotating part is provided with a circle of annular bulge wall which can be correspondingly inserted in the annular groove in a rotating way.

As a further improvement of the invention, the first through hole and the second through hole are internally provided with mounting structures for fixedly mounting the functional components.

As a further improvement of the invention, the functional component is one or a combination of more of a negative ion generator, an essential oil, a sprayer and a medicine bag.

The beneficial technical effects of the invention are as follows: according to the invention, the first through hole and the second through hole which are communicated are formed in the rotation center of the rotating part and the fixing part, the first through hole and the second through hole form the air duct, heat generated in the high-speed rotation process of the rotating part can be quickly taken away by the air duct, the heat dissipation is fast, the rotating part also has the function of a shell, the heat dissipation is more beneficial, the structure is simplified, the whole volume and the mass are reduced, the rotating part and the fixing part are connected in a rotating fit manner through the plurality of convex rings and the annular groove structure, the connection stability is high, the vibration is not easy in the use process, and the application environment is wide.

Drawings

Fig. 1 is a schematic diagram of the structural principle of the present invention.

Detailed Description

Examples: the utility model provides a coreless motor, including mounting 1, iron core 2, coil 3, rotor 4 and magnet 5, rotor 4 can relative rotation install on mounting 1, the corresponding first through hole 6 and the second through hole 7 that are formed with the fretwork in rotor 1 and rotor 4's the center of rotation department, iron core 2 fixed mounting is on mounting 1 or rotor 4's lateral wall, coil 3 twines on iron core 2 circumference outside surface, the fixed mounting that magnet corresponds is on rotor 4 or stator 1 lateral wall, and magnet 5 and coil 3 position correspond and relative rotation, through rotor 4 high-speed rotation around mounting 1 under the effect of magnetic field after the electric current is passed on coil 3, because rotor 4 and stator 1 center form corresponding first, two through holes, just formed the wind channel here, can take away rotor 4 and stator 1 relatively in-rotation in-process fast, the heat dissipation ability is strong, guarantee the motor can long-time stable work, first, two through holes at the center still can be used for wearing to establish control circuit, increase axial air current.

The fixing piece 1 is characterized in that at least one circle of annular groove 12 structures 8 are formed on the end face of one end of the fixing piece 1, at least one circle of annular protruding walls 9 corresponding to the annular groove 12 structures 8 on the fixing piece 1 are arranged on one side wall of the rotating piece 4, the annular protruding walls 9 on the rotating piece 4 can be inserted in the circular arc groove structures of the fixing piece 1 in a one-to-one correspondence mode, rotation positioning is achieved through rotation of the circular arc protruding walls in the annular groove 12 structures 8, a plurality of circular arc protruding walls are matched with the circular annular groove 12 structures 8, connection is stable, rotation stability is high, vibration is small, and long-term use is not easy to damage.

The iron cores 2 are fixedly arranged on the outer side wall of the circumference of the fixing piece 1 along the radial extension of the fixing piece 1, the magnet 5 is fixedly arranged on the surface of one side of the rotating piece 4, and the magnet 5 is coated on one side of the coil 3 far away from the axial direction of the fixing piece 1.

The circumferential outer side wall of the rotating member 4 forms a bending edge 10 facing to one side, the magnet 5 is fixedly mounted on the inner side surface of the bending edge 10, and the magnet 5 can be directly and fixedly mounted on the side wall of the rotating member 4 facing to the fixed end and axially extends along the rotating member 4 instead of being mounted on the bending edge 10.

The bent edge 10 on the rotating part 4 completely covers the fixing part 1 and the iron core 2 and the coil 3 on the fixing part, the outer side wall of the circumference of the rotating part 4 is bent, the fixing part 1 and the iron core 2 and the coil 3 on the fixing part are covered, the rotating part 4 also has the function of a shell, the part of the shell is reduced, the production cost is saved, the heat dissipation effect is better, the assembly is convenient, and the motor product is beneficial to smaller volume and smaller mass production.

The iron core 2 is kept away from and is equipped with towards protruding structure 11 of rotating piece 4 direction on the one end of mounting 1 circumference lateral wall, be equipped with on this protruding structure 11 with mounting 1 on the concentric annular groove 12 of annular groove 12 structure 8, be equipped with round annular protruding wall 9 that can correspond the rotation and insert in this annular groove 12 on the rotating piece 4 lateral wall, also form on iron core 2 with rotating piece 4 on annular protruding wall 9 matched annular groove 12 structure, improved rotation stability greatly, be favorable to reducing the vibrations that produce in the rotation process.

And the first through hole and the second through hole are internally provided with mounting structures for fixedly mounting the functional components.

The functional component is one or a combination of more of a negative ion generator, essential oil, a sprayer and a medicine bag, and can also be other functional products.

Claims

1. A coreless motor, characterized by: including mounting (1), iron core (2), coil (3), rotor (4) and magnet (5), rotor can relative pivoted installs on the mounting, and the rotation center department of mounting and rotor corresponds and is formed with first perforation (6) and second perforation (7) of fretwork, and the coil winding is on iron core circumference outside surface, and magnet corresponds and relative rotation with the coil position, be formed with at least round annular groove structure (8) on the mounting one end terminal surface, be equipped with round annular bulge wall (9) that at least round and mounting go up annular groove structure correspond on the rotor lateral wall, round annular bulge wall on the rotor can pivoted one-to-one insert locate in the convex groove structure of mounting, a plurality of iron cores are along the fixed mounting of radial extension of mounting on the mounting circumference lateral wall, and magnet fixed mounting is in rotor one side surface, and the magnet cladding is kept away from mounting axis direction one side in the coil, be equipped with on the one end that the iron core kept away from the mounting circumference lateral wall towards rotor direction protruding structure (11), be equipped with on this protruding structure with on the rotor lateral wall with on the annular bulge wall with annular groove structure correspond on the rotor annular bulge wall can locate annular groove (12) on the rotor annular bulge wall.

2. The coreless motor of claim 1, wherein: the outer side wall of the circumference of the rotating piece forms a bending edge (10) facing to one side, and the magnet is fixedly arranged on the inner side surface of the bending edge.

3. A coreless motor as claimed in claim 2, wherein: the bending edge on the rotating piece completely covers the fixing piece and the iron core and the coil on the fixing piece.

4. The coreless motor of claim 1, wherein: and the first through hole and the second through hole are internally provided with mounting structures for fixedly mounting the functional components.

5. The coreless motor of claim 4, wherein: the functional component is one or a combination of more of a negative ion generator, essential oil, a sprayer and a medicine bag.