CN205509742U

CN205509742U - Fixing device of brushless dust catcher motor

Info

Publication number: CN205509742U
Application number: CN201620230742.8U
Authority: CN
Inventors: 尹凌飞
Original assignee: Suzhou Runhao Motor Co ltd
Current assignee: Suzhou Runhao Motor Co ltd
Priority date: 2016-03-24
Filing date: 2016-03-24
Publication date: 2016-08-24
Anticipated expiration: 2026-03-24

Abstract

The utility model discloses a fixing device of brushless dust catcher motor, it includes electric motor rotor, motor stator, locate the motor shell in the electric motor rotor and the motor stator outside, and set up in the motor fan cover in the motor shell outside, motor shell has relative casing end cover end and shaft extension end, and the central point of casing end cover puts and is equipped with first bearing room, motor fan cover have and the terminal surface that the casing end cover meets, the central point of terminal surface puts and is equipped with the centre bore, the pore wall of centre bore with the excircle interfacial of first bearing room is interference fit to can fix motor end cover department bearing room, make not produce in the motor working process and freely rock, the motor installation is reliable, shakes lessly, has just reduced the noise.

Description

The fixing device of brushless motor of dust collector

Technical field

This utility model relates to a kind of brushless electric machine technical field, especially relates to a kind of brushless vacuum cleaner The fixing device of motor.

Background technology

Along with the raising of people's living standard, vacuum cleaner is widely used, and vacuum cleaner is giving life band The most simultaneously, also to carry to us and serve puzzlement.Vacuum cleaner is to utilize driven by motor blade at a high speed Rotate, in the housing sealed, produce air negative pressure, thus the foreign material such as dust are sucked in dust bag, The motor of high speed rotating, owing to lacking fixing device, is easily generated swing, produces vibrating noise, simultaneously Also easily motor is produced and damage.

The most most motor of dust collector is all that one side cantilever is fixed, the motor of high speed rotating, Owing to only one side is fixed, therefore can produce serious waving, produce vibrating noise, impact life. Meanwhile, vacuum cleaner is indispensable life products in family, uses very high frequency, and the motor not fastened is easy to Damage, bring higher use cost to consumer.

Utility model content

The purpose of this utility model is to overcome the defect of prior art, it is provided that a kind of simple in construction, easily In the fixing device of the brushless motor of dust collector manufactured, thus increase the stability of motor, reduce motor Noise.

For achieving the above object, the utility model proposes following technical scheme:

The fixing device of a kind of brushless motor of dust collector, including rotor, motor stator, Yi Jishe Motor case outside rotor and motor stator, described motor case has shell end cover, institute The center stating shell end cover is provided with clutch shaft bearing room, and described fixing device also includes being arranged at described Motor fan housing outside motor case, described motor fan housing has the end face connected with described shell end cover, The center of described end face is provided with centre bore, the hole wall of described centre bore and described clutch shaft bearing room It it is interference fit between periphery.

Preferably, the periphery of described clutch shaft bearing room is formed by the bending extension of described shell end cover.

Preferably, described motor case has the axle stretch end relative with described shell end cover end, described axle The center position stretching end is provided with the second bearing chamber.

Preferably, described fixing device also includes determining impeller, and the described axle center determining impeller is provided with described The groove that second bearing chamber matches.

Preferably, described determine to be additionally provided with on impeller to be fixed by screw with described motor case be connected Through hole.

Preferably, described motor fan housing also has side perimembranous, described side perimembranous from described end face to downward Stretch and be formed with several vent.

Profitable fruit of the present utility model is:

1, by the sheathed motor fan housing in the outside of motor case, making the bearing chamber on electric motor end cap and electricity Machine fan housing centre bore interference fit, makes the bearing chamber at electric motor end cap be fixed, will not be produced from by Rock, make motor part install reliable, vibrate less, extend the service life of vacuum cleaner.

2, motor part is fastened, and vibration amplitude reduces, and effectively reduces vibrating noise.

Accompanying drawing explanation

Fig. 1 is that the cross-sectional schematic of the fixing device of brushless vacuum cleaner of the present utility model (removes motor Drive plate)；

Fig. 2 is of the present utility model to determine impeller schematic perspective view；

Fig. 3 is schematic perspective view of the present utility model；

Reference: 1, rotor, 2, motor stator, 3, determine impeller, 4, motor case, 5, Motor fan housing, 6, shell end cover, 7, clutch shaft bearing room, the 8, second bearing chamber, 31, groove, 311, Through hole, 32, securing member, 51, centre bore, 52, through hole, 53, vent.

Detailed description of the invention

Below in conjunction with accompanying drawing of the present utility model, the technical scheme of this utility model embodiment is carried out Clear, complete description.

As it is shown in figure 1, the fixing device of the brushless motor of dust collector disclosed in this utility model, its bag Include rotor 1, motor stator 2, determine impeller 3, be located at outside rotor 1 and motor stator 2 Motor case 4, and it is arranged at the motor fan housing 5 outside motor case 4.Described motor case 4 has Having two ends, one end is the axle stretch end of machine shaft, and the other end is provided with shell end cover 6.Axle stretch end and machine The center of shell end cap end is equipped with bearing chamber (clutch shaft bearing room 7 and the second bearing chamber 8) with peace Dress machine shaft, wherein the periphery of the clutch shaft bearing room 7 of shell end cover one end is bent by shell end cover Extend and formed.

Described motor fan housing 5 is sheathed on the outside of motor case 4, and it has two end faces and connects two The side perimembranous of individual end face, the center of the described end face connected with electric motor end cap is provided with centre bore 51, should Centre bore 51 is in mating connection with the periphery of described clutch shaft bearing room 7, and the hole wall of centre bore 51 And be interference fit between the periphery of clutch shaft bearing room 7, so that shell end cover 6 end is to electricity Machine clutch shaft bearing room 7 is fixed.

Meanwhile, as in figure 2 it is shown, the shaft core position determining impeller 3 is provided with groove 31, groove internal diameter size Size is equal with the outside dimension of the second bearing chamber 8 of motor-shaft extending end, around the most described groove 31 It is provided with multiple through hole 311, the motor case 4 of motor-shaft extending end is again provided with bolt corresponding with through hole Hole, while bearing chamber with groove match, determines the through hole 311 on impeller and motor-shaft extending end electricity Bolt hole in machine casing connects by screw is fixing, to realize brushless motor of dust collector axle stretch end bearing Fixing of room.

So, by motor case 4 outer sheath motor fan housing 5, and at motor fan housing 5 and motor On the end face that end cap connects, centre bore 51 is set, makes hole wall and the clutch shaft bearing room 7 of centre bore 51 Periphery phase interference fit so that the bearing chamber at electric motor end cap is fixed, meanwhile, by determining leaf Wheel 3 is connected with fixing between motor case 4, it is achieved fix motor two ends, when making motor rotation More firm, Free Slosh will not be produced, vibrations reduce, and noise reduces the most accordingly, and vacuum cleaner uses Life-span extends the most accordingly.

More preferably, motor fan housing 5 is provided with through hole 52 with determining the end face that impeller 3 is connected, determine on impeller with Through hole is provided with securing member 32 to relevant position so that motor fan housing is more easily installed, preferably solid Fixed.Equally distributed vent 53 is set on motor fan housing 5 sidewall, can be effectively by the heat of motor Amount is spread out by vent 53, effectively reduces motor temperature.

Technology contents of the present utility model and technical characteristic have revealed that as above, but are familiar with the skill of this area Art personnel are still potentially based on teaching of the present utility model and announcement and make all without departing substantially from this utility model essence The replacement of god and modification, therefore, it is interior that this utility model protection domain should be not limited to disclosed in embodiment Hold, and should include various without departing substantially from replacement of the present utility model and modification, and be present patent application right Require to be contained.

Claims

1. a fixing device for brushless motor of dust collector, including rotor, motor stator, Yi Jishe Motor case outside rotor and motor stator, described motor case has shell end cover, institute The center stating shell end cover is provided with clutch shaft bearing room, it is characterised in that: described fixing device is also wrapped Including the motor fan housing being arranged at outside described motor case, described motor fan housing has and described chassis end The end face that lid connects, the center of described end face is provided with centre bore, the hole wall of described centre bore and institute State between the periphery of clutch shaft bearing room as interference fit.

The fixing device of brushless motor of dust collector the most according to claim 1, it is characterised in that institute The periphery stating clutch shaft bearing room is formed by the bending extension of described shell end cover.

The fixing device of brushless motor of dust collector the most according to claim 1, it is characterised in that institute State motor case and there is the axle stretch end relative with described shell end cover end, the center of described axle stretch end Place is provided with the second bearing chamber.

The fixing device of brushless motor of dust collector the most according to claim 3, it is characterised in that institute Stating fixing device and also include determining impeller, the described axle center determining impeller is provided with and matches with described second bearing chamber The groove closed.

The fixing device of brushless motor of dust collector the most according to claim 4, it is characterised in that institute State to determine to be additionally provided with on impeller and fixed, with described motor case, the through hole being connected by screw.

The fixing device of brushless motor of dust collector the most according to claim 1, it is characterised in that institute Stating motor fan housing and also have side perimembranous, described side perimembranous has been downwardly extending several logical from described end face Air port.