CN216851485U

CN216851485U - Sectional type rotor structure of permanent magnet motor

Info

Publication number: CN216851485U
Application number: CN202220344262.XU
Authority: CN
Inventors: 程少华
Original assignee: Jiangxi Sunway Electric Co ltd
Current assignee: Jiangxi Sunway Electric Co ltd
Priority date: 2022-02-21
Filing date: 2022-02-21
Publication date: 2022-06-28
Anticipated expiration: 2032-02-21

Abstract

The utility model relates to the technical field of electric machine, especially, relate to a permanent-magnet machine sectional type rotor structure, its technical scheme includes: pivot and rotor section, install the rotor section through the key round pin in the middle of the pivot surface, the pivot surface is located rotor section one side and installs the heat-conducting seat, pivot surface both sides position department all installs the radiating seat, both sides the radiating seat is inside to be close to pivot position department and installs the aqueduct, both sides the radiating seat is close to surface position department and installs the heat-conducting post, both sides the inside heat-conducting post clearance position department that is located of radiating seat, rotor section and heat-conducting seat is equipped with the air vent. The utility model provides a permanent magnet motor sectional type rotor structure has solved current device heat conduction simple structure, and the rotor operation in-process produces higher heat, can't derive it, and rotor temperature very easily risees, leads to the permanent magnet demagnetization, influences motor life's problem, has reduced the inside temperature of rotor, and then has improved the life of rotor.

Description

Sectional type rotor structure of permanent magnet motor

Technical Field

The utility model relates to the technical field of motors, specifically be a permanent-magnet machine sectional type rotor structure.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the electromagnetic induction law, the motor is represented by a letter M (old standard is represented by D) in a circuit, the motor mainly has the function of generating driving torque and is used as a power source of electric appliances or various machines, the generator is represented by a letter G in the circuit, the motor mainly has the function of converting mechanical energy into electric energy, and a rotor structure is an important component in a permanent magnet motor.

Through the magnanimity retrieval, discover rotor structure among the prior art like a permanent-magnet machine sectional type rotor structure that publication number is CN208128011U discloses, simple structure is reliable, uses a rotor punching just can realize, can practice thrift the cost to through the design of rivet hole, rivet hidden first hole, first keyway and second keyway, when the assembly, through two adjacent rotor punching sections of rotatory installation, can solve the outstanding problem of rivet head portion fast effectively.

The existing motor rotor is simple in heat conduction structure, high heat is generated in the rotor operation process and cannot be led out, the temperature of the rotor is extremely easy to rise, permanent magnet demagnetization is caused, the service life of a motor is influenced, and therefore the sectional type rotor structure of the permanent magnet motor is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a permanent-magnet machine sectional type rotor structure possesses the advantage that heat conduction efficiency is high, has solved current device heat conduction simple structure, and the rotor operation in-process produces higher heat, can't derive it, and rotor temperature very easily risees, leads to the permanent magnet demagnetization, influences motor life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a permanent-magnet machine sectional type rotor structure, includes pivot and rotor section, wherein install the rotor section through the key round pin in the middle of the pivot surface, the pivot surface is located rotor section one side and installs the heat-conducting seat, pivot surface both sides position department all installs the radiating seat, both sides the inside pivot position department of being close to of radiating seat installs the aqueduct, both sides the radiating seat is close to surface position department and installs the heat conduction post, the rotor section passes through the magnetic pole groove with the heat-conducting seat surface and installs the magnetic pole, both sides the inside heat conduction post clearance position department that is located of radiating seat, rotor section and heat conduction seat is equipped with the air vent.

Preferably, the rotor section is equipped with threely altogether, and is three the pivot surface is located to rotor section equidistance branch, through setting up three rotor section, is convenient for maintain the utility model discloses.

Preferably, the number of the heat conduction seats is two, the two heat conduction seats are respectively arranged on the outer surface of the rotating shaft and are located at the positions of gaps of the three rotor sections, and the heat conduction efficiency inside the rotor is improved by arranging the two heat conduction seats.

Preferably, the radiating fins are arranged on two sides of the radiating seat and are arranged in an arc shape, and radiating efficiency of the radiating seats on two sides is improved by arranging the radiating fins.

Preferably, a cooling groove is formed in the heat conducting seat close to the inner surface, the water guide pipe is communicated with the cooling groove through a through hole, and the heat conducting efficiency of the rotor is improved by arranging the cooling groove and the water guide pipe.

Preferably, the inner surfaces of the heat radiating seat, the rotor section and the heat conducting seat on the two sides are provided with clamping grooves at positions of key pins, the clamping grooves are matched with the key pins, and the heat radiating seat, the rotor section and the heat conducting seat are fixed by arranging the key pins.

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

1. the utility model discloses a set up the heat-conducting seat, the radiating seat, heat conduction post and aqueduct, reach the effect that increases the inside heat conduction efficiency of rotor, set up the rotor section through the key round pin in the middle of the pivot surface, it sets up the heat-conducting seat to be located rotor section one side at the pivot surface, all set up the radiating seat in pivot surface both sides position department, both sides are close to pivot position department and set up the aqueduct inside the radiating seat, it sets up the heat conduction post to be close to surface position department at both sides radiating seat, with the solution heat conduction simple structure, rotor operation in-process produces higher heat, can't derive it, rotor temperature very easily risees, lead to the permanent magnet demagnetization, influence motor life's problem, the inside temperature of rotor has been reduced, and then the life of rotor has been improved.

2. The utility model discloses a set up three rotor section at pivot surface equidistance, reach the effect of being convenient for maintain the rotor to solve the rotor and adopt whole setting, maintain the poor problem of convenience, make things convenient for the dismouting rotor, and then improved the rotor and maintained the convenience.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic side view of the present invention.

Reference numerals: 1. a rotating shaft; 2. a rotor section; 3. a heat dissipation base; 4. a key pin; 5. a vent hole; 6. a heat sink; 7. a heat conducting base; 8. a magnetic pole; 9. a through hole; 10. a water conduit; 11. a cooling tank; 12. a heat-conducting column; 13. a card slot; 14. and a magnetic pole groove.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-3, to achieve the above purpose, the present invention provides the following technical solutions: a permanent magnet motor sectional type rotor structure comprises a rotating shaft 1 and rotor sections 2, wherein the middle of the outer surface of the rotating shaft 1 is provided with the rotor sections 2 through a key pin 4, the number of the rotor sections 2 is three, the three rotor sections 2 are respectively arranged on the outer surface of the rotating shaft 1 at equal intervals, the outer surface of the rotating shaft 1 is provided with two heat conducting seats 7 at one side of the rotor sections 2, the two heat conducting seats 7 are respectively arranged on the outer surface of the rotating shaft 1 at the gap positions of the three rotor sections 2, the positions at the two sides of the outer surface of the rotating shaft 1 are respectively provided with a heat radiating seat 3, the positions inside the heat radiating seats 3 at the two sides, which are close to the rotating shaft 1, are provided with a water guide pipe 10, the positions of the heat radiating seats 3 at the two sides, which are close to the outer surface, are provided with heat conducting columns 12, the outer surfaces of the rotor sections 2 and the heat conducting seats 7 are provided with magnetic poles 8 through magnetic pole grooves 14, and vent holes 5 are arranged at the gaps of the heat radiating seats 3 at the rotor sections 2 and the heat conducting seats 7 at the positions, and clamping grooves 13 are formed in the inner surfaces of the heat radiating seats 3 at the two sides, the rotor section 2 and the heat conducting seat 7 at the position of the key pin 4, and the clamping grooves 13 are matched with the key pin 4.

The working principle is as follows: the working principle of the sectional type rotor structure of the permanent magnet motor based on the embodiment 1 is as follows: will the utility model discloses after installing, will the utility model discloses install inside the motor, produce the magnetic field through motor stator, rotate with rotor magnetic pole 8 drive rotor, simultaneously through heat conduction seat 7, aqueduct 10 and heat conduction post 12, with heat transport to both sides radiating seat 3 in the rotor, through radiating seat 3, increase the utility model discloses radiating efficiency prolongs the utility model discloses life, so far, this equipment work flow is accomplished.

Example two

As shown in fig. 1-3, the present invention provides a sectional type rotor structure of a permanent magnet motor, compared with the first embodiment, the present embodiment further includes: the radiating fins 6 are arranged at the positions of the two sides of the radiating seats 3 at the two sides, the radiating fins 6 are arranged in an arc shape, the inner surface of the heat conducting seat 7, which is close to the inner surface, is provided with a cooling groove 11, and the water guide pipe 10 is communicated with the cooling groove 11 through a through hole 9.

The working principle is as follows: in this embodiment, drive the fan through pivot 1 and rotate, produce the air current, through air current and fin 6, improve 3 radiating efficiency of both sides radiating seat, through setting up cooling bath 11 and aqueduct 10, increase simultaneously the utility model discloses heat conduction efficiency.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations to the above embodiments based on the technical solution of the present invention and the related teachings of the above embodiments.

Claims

1. The utility model provides a permanent-magnet machine sectional type rotor structure, includes pivot (1) and rotor section (2), its characterized in that: install rotor section (2) through key round pin (4) in the middle of pivot (1) surface, pivot (1) surface is located rotor section (2) one side and installs heat-conducting seat (7), pivot (1) surface both sides position department all installs radiating seat (3), both sides radiating seat (3) inside is close to pivot (1) position department and installs aqueduct (10), both sides radiating seat (3) are close to surface position department and install heat conduction post (12), rotor section (2) and heat-conducting seat (7) surface install magnetic pole (8), both sides through magnetic pole groove (14) radiating seat (3), rotor section (2) and heat-conducting seat (7) inside is located heat conduction post (12) clearance position department and is equipped with air vent (5).

2. The segmented rotor structure of a permanent magnet machine according to claim 1, wherein: the rotor sections (2) are three and are arranged on the outer surface of the rotating shaft (1) in the equidistant mode of the rotor sections (2).

3. The segmented rotor structure of a permanent magnet machine according to claim 1, wherein: the two heat conducting seats (7) are arranged, and the two heat conducting seats (7) are respectively arranged on the outer surface of the rotating shaft (1) and are positioned at the gap positions of the three rotor sections (2).

4. The segmented rotor structure of a permanent magnet machine according to claim 1, wherein: both sides radiating seat (3) both sides position department all installs fin (6), fin (6) are the arc setting.

5. The segmented rotor structure of a permanent magnet machine according to claim 1, wherein: a cooling groove (11) is formed in the heat conducting seat (7) close to the inner surface, and the water guide pipe (10) is communicated with the cooling groove (11) through a through hole (9).

6. The segmented rotor structure of a permanent magnet machine according to claim 1, wherein: and clamping grooves (13) are formed in the inner surfaces of the heat radiating seat (3), the rotor section (2) and the heat conducting seat (7) on the two sides and are positioned at the positions of the key pins (4), and the clamping grooves (13) are matched with the key pins (4).