CN212412978U

CN212412978U - Heat dissipation motor for electric tool

Info

Publication number: CN212412978U
Application number: CN202021005459.8U
Authority: CN
Inventors: 黎德宇; 刘国伟
Original assignee: Shanghai Xiangfei Electric Co ltd
Current assignee: Shanghai Xiangfei Electric Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-01-26
Anticipated expiration: 2030-06-04

Abstract

The utility model provides a heat dissipation motor for electric tool, including motor stator, electric motor rotor, the flabellum, graphite alkene radiating block, the copper heat pipe, the aluminum alloy heat transfer ware, dust screen and outer radiating fin, electric motor rotor sets up inside motor stator, the outer terminal surface of radiating fin welding at electric motor stator, the flabellum is installed in the electric motor rotor left side, two terminal surface outsides about electric motor rotor are fixed to the aluminum alloy heat transfer ware, the welding of copper heat pipe is in aluminum alloy heat transfer ware middle part position, graphite alkene radiating block is fixed between the copper radiating block, the dust screen is installed on motor stator right side, this design increases the heat absorption, heat transfer and dustproof component, it is not thorough to solve current motor heat dissipation, the problem that is damaged by the dust easily, the utility model discloses rational in infrastructure, it is dustproof to be convenient for.

Description

Heat dissipation motor for electric tool

Technical Field

The utility model relates to an electric tool is with heat dissipation motor belongs to motor technical field.

Background

The alternating current motor can generate heat in the process of acting externally, so a certain cooling measure must be taken, but the cooling effect of the existing cooling technology is not obvious and the structure is complex, the motor can only be cooled locally, the cooling range is not large, and the motor rotating at high speed is a solution which meets the requirement. However, in this motor, a large current flows into the coil of the armature of the motor, so that the coil generates a large amount of heat, which may significantly deteriorate the reliability and durability of the motor because the copper wire for the coil has an allowable temperature limit and affects the bearing life, and at the same time, dust also tends to easily enter the motor through the air inlet for ventilation and heat dissipation, damaging the motor.

Disclosure of Invention

Not enough to prior art exists, the utility model aims at providing a radiating motor for electric tool to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, the efficient of being convenient for dispels the heat dustproof to the motor.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides an electric tool is with heat dissipation motor, includes motor stator, base, electric motor rotor and heat dissipation dustproof mechanism, electric motor rotor installs inside motor stator, the base is fixed terminal surface under motor stator, heat dissipation dustproof mechanism sets up in the base top, heat dissipation dustproof mechanism includes fan casing, pivot, flabellum, graphite alkene radiating block, copper heat pipe, aluminum alloy heat transmitter, dust screen, outer radiating fin. Servo motor and the net of airing exhaust, the welding of outer heat dissipation piece is in the motor stator outside, the fan casing is installed at motor stator left end, the net of airing exhaust is seted up at fan casing middle part position, net inner wall middle part position of airing exhaust is fixed in the pivot, the flabellum is installed on the pivot right side, servo motor installs at pivot right-hand member face, two terminal surface outsides about the electric rotor are fixed to the aluminum alloy heat transfer ware, the welding of copper heat pipe is in aluminum alloy heat transfer ware middle part position, graphite alkene radiating block is fixed between two upper and lower copper cooling tubes, both sides about the motor stator inner wall are fixed to the dust screen.

Furthermore, the aluminum alloy heat transmitter is formed by vertically arranging a plurality of groups of regular hexagonal aluminum alloy sheets.

Further, a protective shell is arranged inside the motor stator, steel pipes are welded at the front end and the rear end of the protective shell, and the protective shell is fixed to the inner wall of the motor stator through the steel pipes.

Furthermore, a sealing strip is pasted at the right end of the motor rotor, the electronic rotor is fixed at the right end of the motor stator through the sealing strip, and the dust screen is installed at the right side gap between the motor rotor and the motor stator.

Further, the direction of the fan blade rotating air exhaust is from right to left.

Furthermore, the outer radiating fins are sawtooth-shaped copper radiating fins and are uniformly welded on the outer end face of the motor stator.

The utility model has the advantages that: the utility model discloses a heat dissipation motor for electric tool, because of the utility model discloses fan casing, pivot, flabellum, graphite alkene radiating block, copper heat pipe, aluminum alloy heat transmitter, dust screen, outer radiating fin have been added. Servo motor and the net of airing exhaust, this design is through increasing the heat absorption, heat transfer, heat dissipation and dustproof component, and it is not thorough to have solved current motor heat dissipation, and the dust gets into the problem that the motor damaged the motor easily simultaneously, has improved the utility model discloses heat dissipation dirt proofness.

Because of the aluminum alloy heat transmitter is formed by arranging from top to bottom multiunit regular hexagon aluminum alloy piece, this design effectively improves heat transfer efficiency, with on the steel heat pipe of the transmission as much as possible of the heat that electric motor rotor produced, because of the sealing strip is pasted to the electric motor rotor right-hand member, the electron rotor passes through the sealing strip to be fixed at the electric motor stator right-hand member, and the dust screen is installed in electric motor rotor and electric motor stator right side clearance department, this design forms a wind channel in electric motor rotor and electric motor stator clearance department, increases a dust screen, makes the inside air of electric motor stator flow through the flabellum rotation and accelerates the heat dissipation, because of outer heat dissipation piece is copper zigzag fin, outer heat dissipation piece evenly welds at electric motor stator outer terminal surface, this design increases electric motor stator and air contact area, dispels the heat more easily, the utility model discloses rational.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a heat dissipation motor for an electric tool according to the present invention;

fig. 2 is a schematic structural view of a heat dissipation and dust prevention mechanism in a heat dissipation motor for an electric tool according to the present invention;

FIG. 3 is a front sectional view of a heat dissipation and dust prevention mechanism of a heat dissipation motor for an electric tool according to the present invention;

in the figure: 1-motor stator, 2-base, 3-motor rotor, 4-heat dissipation dustproof mechanism, 41-fan cover, 42-rotating shaft, 43-fan blade, 44-graphene heat dissipation block, 45-copper heat conduction pipe, 46-aluminum alloy heat transmitter, 47-dustproof net, 48-outer heat dissipation sheet, 49-servo motor and 491-exhaust net.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an electric tool is with heat dissipation motor, includes motor stator 1, base 2, electric motor rotor 3 and heat dissipation dustproof mechanism 4, and motor rotor 3 installs inside motor stator 1, and base 2 fixes terminal surface under motor stator 1, and heat dissipation dustproof mechanism 4 sets up in base 2 top.

The heat dissipation dustproof mechanism 4 includes a fan cover 41, a rotating shaft 42, fan blades 43, a graphene heat dissipation block 44, a copper heat conduction pipe 45, an aluminum alloy heat transmitter 46, a dustproof mesh 47, and an outer heat dissipation sheet 48. Servo motor 49 and exhaust net 491, outer cooling fin 48 welds in the 1 outside of motor stator, fan housing 41 is installed in 1 left end of motor stator, exhaust net 491 is seted up at fan housing 41 middle part position, pivot 42 is fixed at exhaust net 491 inner wall middle part position, flabellum 43 is installed on pivot 42 right side, servo motor 49 is installed at pivot 42 right-hand member face, aluminum alloy heat transmitter 46 is fixed in two terminal surface outsides about motor rotor 3, copper heat pipe 45 welds in aluminum alloy heat transmitter 46 middle part position, graphite alkene radiating block 44 is fixed between two upper and lower copper cooling tubes, dust screen 47 is fixed in both sides about motor stator 1 inner wall, this design is through increasing the heat absorption, heat transfer, heat dissipation and dustproof component, current motor heat dissipation is not thorough, the easy problem that the motor damaged the motor that gets into of dust simultaneously, the utility model discloses heat dissipation dustproof nature has been improved.

Aluminum alloy heat transfer ware 46 is formed by arranging from top to bottom the regular hexagon aluminum alloy piece of multiunit, and this design effectively improves heat transfer efficiency, with the heat that electric motor rotor 3 produced on as much as possible the transmission steel heat pipe, the inside protective housing that is equipped with of electric motor stator 1, both ends welding has the steel pipe around the protective housing, and the protective housing passes through the steel pipe to be fixed at electric motor stator 1 inner wall, and electric motor rotor 3 can not take place the displacement when this design protection electric motor rotor 3 high-speed operation, leads to damaging the motor.

3 right-hand members of electric motor rotor are pasted and are had the sealing strip, electronic rotor 3 passes through the sealing strip to be fixed at 1 right-hand member of motor stator, dust screen 47 is installed in

motor rotor

3 and 1 right side clearance department of motor stator, this design forms an air duct in

motor rotor

3 and 1 clearance department of motor stator, increase a dust screen 47, make the inside air flow of motor stator 1 accelerate the heat dissipation through the flabellum 43 rotation, the rotatory direction of airing exhaust of flabellum 43 is for following the right side to left side, this design has guaranteed that the fresh normal atmospheric temperature air that dust screen 47 flowed in can effectually cool off the inside high temperature of motor, and discharge high-temperature gas through net 491 of airing exhaust, outer radiating fin 48 is the copper fin of zigzag, outer radiating fin 48 evenly welds at 1 outer terminal surface of motor stator, this design increases motor stator 1 and air area of contact, dispel.

As an embodiment of the present invention: after the power is switched on, the motor rotor 3 starts to work, high temperature is generated in the motor rotor 3, then most of heat is transferred to the inexpensive heat through the multi-layer aluminum alloy heat transfer net which is longitudinally distributed, the two copper heat transfer pipes 45 which are vertically distributed and have good heat conduction performance rapidly transfer the heat to the graphene radiating block 44, the servo motor 49 rotates to drive the fan blade 43 to rotate, air on the right side of the motor stator 1 is sucked into an air duct formed between the motor rotor 3 and the motor stator 1 through the dustproof net 47, the external normal temperature air firstly cools the motor rotor 3, then the graphene radiating block 44 is cooled, and then the air is exhausted out of the motor stator 1 through the exhaust net 491, the copper outer radiating sheet on the outer end surface of the motor stator 1 cools the heat transferred in the motor stator 1 by increasing the contact area with the external air, and normal operation of the motor rotor 3 and the motor stator 1 is ensured.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a heat dissipation motor for electric tool, includes motor stator, base, electric motor rotor and heat dissipation dustproof mechanism, its characterized in that: the motor rotor is arranged in the motor stator, the base is fixed on the lower end face of the motor stator, and the heat dissipation dustproof mechanism is arranged above the base;

the heat dissipation dustproof mechanism comprises a fan cover, a rotating shaft, fan blades, a graphene heat dissipation block, copper heat conduction pipes, an aluminum alloy heat transfer device, a dustproof net, an outer heat dissipation sheet, a servo motor and an exhaust net, wherein the outer heat dissipation sheet is welded on the outer side of a motor stator, the fan cover is installed at the left end of the motor stator, the exhaust net is arranged at the middle position of the fan cover, the rotating shaft is fixed at the middle position of the inner wall of the exhaust net, the fan blades are installed on the right side of the rotating shaft, the servo motor is installed at the right end face of the rotating shaft, the aluminum alloy heat transfer device is fixed on the outer sides of the upper end face and the lower end face of a motor rotor, the copper heat conduction pipes are welded at the middle position of the aluminum alloy heat.

2. The heat-dissipating motor for a power tool according to claim 1, characterized in that: the aluminum alloy heat transmitter is formed by vertically arranging a plurality of groups of regular hexagonal aluminum alloy sheets.

3. The heat-dissipating motor for a power tool according to claim 1, characterized in that: the motor stator is internally provided with a protective shell, steel pipes are welded at the front end and the rear end of the protective shell, and the protective shell is fixed on the inner wall of the motor stator through the steel pipes.

4. The heat-dissipating motor for a power tool according to claim 1, characterized in that: the motor rotor is characterized in that a sealing strip is pasted at the right end of the motor rotor, the motor rotor is fixed at the right end of the motor stator through the sealing strip, and the dust screen is installed at the right side gap of the motor rotor and the motor stator.

5. The heat-dissipating motor for a power tool according to claim 1, characterized in that: the fan blade rotates to exhaust air from right to left.

6. The heat-dissipating motor for a power tool according to claim 1, characterized in that: the outer radiating fins are copper radiating fins in a sawtooth shape, and the outer radiating fins are evenly welded on the outer end face of the motor stator.