CN216056522U

CN216056522U - Assembled high-efficient heat dissipation type rotor

Info

Publication number: CN216056522U
Application number: CN202121532516.2U
Authority: CN
Inventors: 钟明禺
Original assignee: Onlink Hk Industrial Ltd
Current assignee: Onlink Hk Industrial Ltd
Priority date: 2021-07-07
Filing date: 2021-07-07
Publication date: 2022-03-15
Anticipated expiration: 2031-07-07

Abstract

The utility model discloses an assembled high-efficiency heat-dissipation rotor, which comprises a plastic seat, a rotor core, a magnet and a rotating shaft, wherein the plastic seat is arranged on the rotor core; the plastic seat comprises a seat body and a cylinder body; the rotor core is arranged on the cylinder body, the center positions of the upper surface and the lower surface of the rotor core are penetrated with shaft holes, and the outer sides of the shaft holes are concavely provided with magnet holes; the magnet is arranged in the magnet hole; the rotating shaft is arranged in the shaft hole, wherein the rotating shaft is inserted in the shaft hole, the outer wall of the rotating shaft is provided with a fixing structure, and the fixing structure is tightly matched and fixed with the inner wall of the shaft hole. Through being equipped with fixed knot on the outer wall of pivot constructs, this fixed knot constructs fixedly with the shaft hole fastening grafting, and the structure that the pivot adopted the cartridge has replaced traditional pivot and the structure of plastic seat rubber coating of moulding plastics, and it can select the pivot of different sizes according to the demand of difference to use more nimble, and the pivot diameter is greater than the diameter of traditional pivot, thereby accomplished small motor high-power. And the arc-shaped radiating blades are adopted, so that the air guide efficiency is better, and the radiating effect is better.

Description

Assembled high-efficient heat dissipation type rotor

Technical Field

The utility model relates to the technical field of rotors, in particular to an assembled high-efficiency heat-dissipation rotor.

Background

A motor is a device that converts electrical energy into rotational energy by using a force applied to a conductor in a magnetic field. Recently, as the applications of motors have increased, the functions of the motors have become very important. Generally, a motor is provided with a shaft formed as a rotatable rotor coupled with the shaft; and a stator fixed inside the housing, wherein the stator is installed at intervals along a circumference of the rotor. A coil forming a rotating magnetic field is wound around the stator to cause electrical interaction with the rotor to rotate the rotor. When the rotor rotates, the shaft rotates to generate or assist a braking or steering force.

The traditional rotating shaft is formed on a plastic seat of the rotor by adopting an injection molding and encapsulation structure, the injection molding and encapsulation structure is limited by the size of a mold cavity, the size of the rotating shaft is fixed, rotating shafts with different sizes cannot be selected according to requirements, and the use is inconvenient and inflexible; and the conventional rotating shaft has a small size, so that the power of the rotor is low. And the traditional rotor adopts the right-angled radiating blades to radiate heat, and the radiating effect is not good enough.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide an assembled high-efficiency heat-dissipating rotor, which effectively solves the problem that the size of the conventional rotating shaft is fixed due to the limitation of the size of the mold cavity, and solves the problem that the heat-dissipating effect of the conventional rotor is poor due to the use of right-angled heat-dissipating blades for heat dissipation.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an assembled high-efficiency heat-dissipation rotor comprises a plastic seat, a rotor core, a magnet and a rotating shaft; the plastic seat comprises a seat body and a cylinder body, wherein the cylinder body is integrally formed downwards on the bottom surface of the seat body; the rotor core is arranged on the cylinder body, the center positions of the upper surface and the lower surface of the rotor core are penetrated with shaft holes, and the outer sides of the shaft holes are concavely provided with magnet holes; the magnet is arranged in the magnet hole; the rotating shaft is arranged in the shaft hole, wherein the rotating shaft is inserted in the shaft hole, the outer wall of the rotating shaft is provided with a fixing structure, and the fixing structure is tightly matched and fixed with the inner wall of the shaft hole.

As a preferable scheme, a plurality of radiating blades are arranged at intervals on the periphery of the bottom surface of the seat body.

As a preferred scheme, a plurality of cooling fin all are the arc form, form the arc wind channel that promotes wind-guiding efficiency between two adjacent cooling fin.

As a preferred scheme, the rotating shaft comprises an insertion part and a connecting part integrally connected with the insertion part, the fixing structure is positioned on the outer wall of the insertion part, and the outer end of the connecting part is provided with a connecting thread.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:

through being equipped with fixed knot on the outer wall of pivot constructs, this fixed knot constructs fixedly with the shaft hole fastening grafting, and the structure that the pivot adopted the cartridge has replaced traditional pivot and the structure of plastic seat rubber coating of moulding plastics, and it can select the pivot of different sizes according to the demand of difference to use more nimble, and the pivot diameter is greater than the diameter of traditional pivot, thereby accomplished small motor high-power. And the arc-shaped radiating blades are adopted, so that the air guide efficiency is better, and the radiating effect is better.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is an assembled perspective view of the preferred embodiment of the present invention;

FIG. 2 is another perspective view of the preferred embodiment of the present invention;

FIG. 3 is an exploded view of the preferred embodiment of the present invention;

FIG. 4 is a cross-sectional view of a preferred embodiment of the present invention;

FIG. 5 is a perspective view of the spindle in the preferred embodiment of the present invention.

The attached drawings indicate the following:

10. plastic seat 11, seat body

12. Barrel 13 and radiating blades

14. Arc air duct 20 and rotor core

201. Axle hole 202, screens groove

30. Magnet 40, rotating shaft

401. Fixing structure 41 and insertion part

42. Connecting portion 421, connecting screw thread.

Detailed Description

Referring to fig. 1 to 5, a specific structure of a preferred embodiment of the present invention is shown, which includes a plastic base 10, a rotor core 20, a magnet 30 and a rotating shaft 40.

The plastic seat 10 includes a seat body 11 and a cylinder 12, the cylinder 12 is integrally formed on a bottom surface of the seat body 11, and the cylinder 12 has a cavity for mounting the magnet 30 and the rotating shaft 40. The rotor core 20 is arranged on the cylinder 12, and the rotor core 20 is formed by stacking a plurality of silicon steel sheets; a shaft hole 201 is formed through the center of the upper and lower surfaces of the rotor core 20, a magnet hole is recessed outside the shaft hole 201, and the magnet 30 is disposed in the magnet hole.

This pivot 40 sets up in shaft hole 201, specifically speaking, pivot 40 cartridge is in shaft hole 201, and is equipped with fixed knot structure 401 on the outer wall of pivot 40, and this fixed knot structure 401 closely cooperates fixedly with the inner wall in shaft hole 201. The traditional injection molding and rubber coating structure is limited by the size of a mold cavity, the size of the rotating shaft 40 is fixed, rotating shafts with different sizes cannot be selected according to requirements, and the use is inconvenient and inflexible; and the conventional rotating shaft 40 is small in size, resulting in less power of the rotor. According to the utility model, the structure that the traditional rotating shaft 40 and the plastic seat 10 are molded by injection molding and rubber coating is replaced by the structure that the rotating shaft 40 is inserted, the rotating shafts 40 with different sizes can be selected according to different requirements, and the hole diameter of the shaft hole 201 is correspondingly processed and formed according to the rotating shafts 40 with different sizes, so that the use is more flexible, the diameter of the rotating shaft 40 on the rotor is larger than that of the traditional rotating shaft, and the high power of a small motor is realized.

In this embodiment, the pivot is including grafting portion and the connecting portion of being connected with grafting portion integrated into one piece, and above-mentioned fixed knot constructs to be located the outer wall of grafting portion, and the outer end of connecting portion has connecting thread, makes things convenient for follow-up installation.

The bottom surface periphery interval of above-mentioned pedestal 11 is provided with a plurality of radiator vane 13, and these a plurality of radiator vane 13 all are the arc form, form the arc wind channel 14 that promotes wind-guiding efficiency between two adjacent radiator vane, and it compares traditional right angle radiator vane, and its wind-guiding efficiency of curved radiator vane 13 is better to the radiating effect is better.

When assembling, the rotor core 20 is assembled to the cylinder 12; then the magnet 30 is installed on the magnet hole; then, the rotating shaft 40 is inserted into the shaft hole 201, and the assembly is completed.

The design of the utility model is characterized in that: through being equipped with fixed knot on the outer wall of pivot constructs, this fixed knot constructs fixedly with the shaft hole fastening grafting, and the structure that the pivot adopted the cartridge has replaced traditional pivot and the structure of plastic seat rubber coating of moulding plastics, and it can select the pivot of different sizes according to the demand of difference to use more nimble, and the pivot diameter is greater than the diameter of traditional pivot, thereby accomplished small motor high-power. And the arc-shaped radiating blades are adopted, so that the air guide efficiency is better, and the radiating effect is better.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.

Claims

1. An assembled high-efficiency heat-dissipation rotor comprises a plastic seat, a rotor core, a magnet and a rotating shaft; the plastic seat comprises a seat body and a cylinder body, wherein the cylinder body is integrally formed downwards on the bottom surface of the seat body; the rotor core is arranged on the cylinder body, the center positions of the upper surface and the lower surface of the rotor core are penetrated with shaft holes, and the outer sides of the shaft holes are concavely provided with magnet holes; the magnet is arranged in the magnet hole; this pivot sets up in the shaft hole, its characterized in that: the rotating shaft is inserted into the shaft hole, the outer wall of the rotating shaft is provided with a fixing structure, and the fixing structure is closely matched and fixed with the inner wall of the shaft hole.

2. The assembled high efficiency heat dissipating rotor of claim 1, wherein: the periphery of the bottom surface of the seat body is provided with a plurality of radiating blades at intervals.

3. The assembled high efficiency heat dissipating rotor of claim 2, wherein: a plurality of radiating blades are all arc-shaped, and an arc-shaped air channel for improving the air guide efficiency is formed between every two adjacent radiating blades.

4. The assembled high efficiency heat dissipating rotor of claim 1, wherein: the rotating shaft comprises an inserting part and a connecting part integrally connected with the inserting part, the fixing structure is positioned on the outer wall of the inserting part, and the outer end of the connecting part is provided with a connecting thread.