CN102136775A

CN102136775A - Motor shield

Info

Publication number: CN102136775A
Application number: CN2010103007235A
Authority: CN
Inventors: 肖宗亮; 武甜甜
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2010-01-26
Filing date: 2010-01-26
Publication date: 2011-07-27

Abstract

The invention discloses a motor shield. The motor shield comprises an upper chamber, a lower chamber and an inner shield, wherein the upper chamber fixes and accommodates an impeller part of the motor therein; the lower chamber is fixedly connected with the upper chamber and accommodates a coil part of the motor therein; an exhaust port is reserved at the bottom of the lower chamber; and the inner shield is fixedly arranged inside the lower chamber, is fixedly connected with the end part of the coil part of the motor, and divides the space between the lower chamber and the coil part of the motor into an inner flow path and an outer flow path. In the motor shield, the impeller part of the motor is fixed inside the upper chamber, the inner shield is arranged outside the coil part of the motor and is fixedly connected with the end part of the motor to limit the rotation of the motor, namely, limit the separation between the translation and the rotation of the motor, so that the starting stability is enforced, and fillings in a sound absorbing chamber can weaken the propagation of vibration along with the floatation of airflow; and the inner shield divides the space between the coil part of the motor and the lower chamber into the outer flow path and the inner flow path, so that the air flow path is lengthened and noise is greatly reduced.

Description

Motor cover

Technical field

The present invention relates to a kind of dust catcher; Particularly relate to a kind of motor of dust collector cover.

Background technology

Usually, vacuum cleaner is to utilize vacuum to produce suction to suck air, makes air flow through various filters, airborne foreign matter is filtered the device in the cleaning chamber.

In general, vacuum cleaner mainly comprises aspirator and suction line, with motor and blower fan is that the aspirator that dominant shape becomes is arranged in the body, suction line comprises suction nozzle and air intake duct, and the air entry of the oriented under shed of suction nozzle and telescoping tube and flexible pipe by air intake duct communicate with the air inlet of body inner blower.During the dust catcher running, the impeller high speed rotating of motor drives blower fan discharges the air in the dust catcher, forms instantaneous vacuum in dust catcher, and forms a quite high Negative Pressure Difference between the ambient atmosphere.Under the effect of this Negative Pressure Difference, near the dust the suction nozzle sucks in the dust bucket in the body by air entry together with air.The air that contains dust after filtering, flows back to the dust catcher outside from air outlet again in the body dust bucket.Like this, just reach the effect of dust out, clean floor.The suction rate of vacuum cleaner is divided into a plurality of class of operating control, adapts to the scope of operation of different cleaning objects such as ground, bed surface, sofa, corner, so that aspirate dust everywhere better.

Press the use and the moving method of vacuum cleaner, can be divided into horizontally, vertical, portable etc., little foreign matters such as dust clean: ground such as vertical easy cleaning woollen blanket with comparalive ease in the wherein horizontal family that is mainly used in; The portable narrow positions such as step, desktop of easily cleaning.

In addition, vacuum cleaner can be divided into filer element type, cyclone type to the mode that foreign matters such as dust, hair filter by it.Wherein filer element type makes the air that contains foreign matter flow through a kind of dry goods dust bag, foreign matter filtered to change dust bag periodically, and cyclone type makes the suction air generation swirling flow that contains foreign matter, fall the bottom surface with sucking the deadweight effect tenesmus of airborne foreign matter in rotary course, do not need dust bag, its use amount just constantly rises.

For present Wet-dry dust catcher, the air-flow that has dust is sucked into cyclone separator inside through brush, dust is separated from the gas under action of centrifugal force, the gas that is mingled with micro-dust is closely gone into internal body after by filter, advance through hole then and entered motor cavity inside, after discharging from tap, enter in the air after filtering once more via the filter that is arranged on the dust catcher body afterbody.

Dust catcher is vibrations that reduce motor itself and the noise that flabellum sends in the course of the work, and most of dust catcher adopts motor cover, improve the runner of the air-flow of discharging motor, and various forms of sound-absorbing materials are set in motor cover, but effect is unsatisfactory.

And to spacing head round rubber circles that adopt of motor, afterbody is with being provided with translation and the rotation that two projection square blocks limit motor more, motor spacing insecure is easy to cause loosening, causes noise to increase.

Summary of the invention

Technical problem to be solved by this invention is, overcomes the prior art shortcoming, provides a kind of and can effectively fall increase fixing to motor, reduces the motor cover structure of dust catcher work noise loudness.

The technical solution adopted in the present invention is:

A kind of motor cover is held upper chamber in it with the electric motor with vane wheel partial fixing; Fixedly connected with upper chamber and motor coil is partly held lower cavity in it, wherein said lower cavity bottom offers exhaust outlet; Be fixedly installed on the internal layer cover in the lower cavity, described internal layer cover is fixedlyed connected with the end of motor coil part, and the internal layer cover is inner flow passage and outer flow passage with the spatial division between lower cavity and the motor coil part.

Described internal layer cover does not have supporting role to motor.

Be provided with sponge in the space between electric motor with vane wheel part and upper chamber.

Demarcation strip between upper chamber and the lower cavity is an orifice plate.

Described internal layer cover bottom is provided with rubber column, and the bottom of rubber column is formed with cavity, and it matches with protruded stigma on the base plate and realizes locating.

Described internal layer cover is fixed on the supporting bracket, forms discharge chamber between supporting bracket and the body fixed head.

Be provided with the noise reduction sponge between internal layer cover and lower cavity.

The invention has the beneficial effects as follows: motor cover structure of the present invention comprises upper chamber and lower cavity two parts, two parts cavity fixedly connected and with the impeller partial fixing of motor in upper chamber, coiler part arranged outside internal layer cover at motor, the internal layer cover is fixedlyed connected the restriction motor and is rotated with the motor end, the translation and the rotation that promptly limit motor are separated, strengthened startup stability, filler in the silencing cavity can float with air-flow and weaken the propagation of vibrations, the internal layer cover has prolonged gas flow and has greatly reduced noise being divided into outer flow passage and inner flow passage between motor coil part and the lower cavity.

Description of drawings

Fig. 1 is a motor cover stereogram of the present invention;

Fig. 2 is the cross sectional view of motor cover shown in Figure 1;

Fig. 3 is the central cross-section view of motor cover shown in Figure 1;

Fig. 4 is a motor cover internal structure cross section view shown in Figure 1;

Fig. 5 is an internal layer cover structure schematic diagram of the present invention;

Fig. 6 is a rubber blanket structural representation of the present invention.

Embodiment

Below in conjunction with the drawings and specific embodiments motor cover structure of the present invention is described in further detail:

Shown in Fig. 1-4, motor cover of the present invention comprises upper chamber 1 and lower cavity 2 two parts, two parts cavity is fixedly connected, wherein the impeller part 41 of motor 4 is firmly fixed and is arranged in the upper chamber 1, described upper chamber 1 top forms in order to hold the air inlet 11 of motor 4 air inlets 43, and be set with sealing ring between the two, for the vibrations that further alleviate motor spread out of, between motor blade part 41 peripheries and upper chamber 1 inwall, be provided with packing material, as sponge 7, and the cavity between motor blade portion 41 and the upper chamber 1 is referred to as silencing cavity.Coiler part 42 with motor 4 in the lower cavity 2 holds wherein, and internal layer cover 5 is arranged in coiler part 42 arranged outside, described internal layer cover 5 is the columnar structured of an end opening one end sealing, and the edge of openend outwards bends and extends to form the wide-mouth structure so that the air-flow of motor discharge is derived, the structure that the blind end center of described internal layer cover 5 forms fixed electrical machinery coiler part end is a round hole and is arranged on the perforate both sides and can inserts the protruded stigma of corresponding depression inside, motor end, when this structure is inserted in the end of motor coil part, can realize rotary spacing to motor.As Fig. 5, shown in Figure 6, schematic structure in the embodiment of the invention is for being formed with rectangular aperture 51 in the blind end center of internal layer cover 5, rectangular rubber pad 9 is provided with round hole and is arranged on the perforate both sides and can inserts the protruded stigma of corresponding depression inside, motor end, it is fixedlyed connected with motor coil part end, and rectangular rubber pad 9 cooperates with the rectangular aperture 51 of internal layer cover 5 then.Certainly, as previously mentioned, rectangular aperture 51 and rectangular rubber pad 9 can be integrally formed.Described internal layer cover 5 be arranged between lower cavity 2 and the motor coil part 42 and with all remain with gas channel between the two, runner between motor coil part 42 and the internal layer cover 5 is referred to as inner flow passage, the runner between internal layer cover 5 and cavity 2 inwalls is referred to as outer flow passage.

As shown in Figure 5, be provided with the rubber column 52 of downward protrusion in the bottom of internal layer cover 5, it is provided with number and is at least two, is good with three wherein.The end of described rubber column 52 is formed with cavity body structure, and its direction of rotation that can realize internal layer cover 5 that matches with protruded stigma on the supporting bracket 8 is fixed.

It is pointed out that wherein motor 4 grips by being arranged on the dividing plate 6 between cavity 1 and the cavity 2 and the top board of cavity 1, promptly main support power is born by the sidewall of cavity 2, and internal layer cover 5 does not produce support force to motor, rotates and just limit motor.Internal layer cover 5 fixed limits and keep certain clearance so that the air communication mistake between its wide mouth part and the demarcation strip 6 on supporting bracket 8.Partly be provided with through hole 81 corresponding to outer flow passage on the described supporting bracket 8, the cavity between corresponding supporting bracket 8 in the bottom of cavity 2 and body fixed head 3 is provided with exhaust outlet 21, wherein the cavity between supporting bracket 8 and the body fixed head 3 is referred to as discharge chamber 31.

Further, for weakening the outside transmission of motor oscillating, described demarcation strip 6 is an orifice plate, offers air vent hole on it, and air-flow part air-flow when inner flow passage marches to the top of discharging from motor can enter cavity 1 inside.

When dust catcher is worked, motor 4 sucks air from air entry, and discharge from the outlet of coiler part 42, the air-flow of discharging enters inner flow passage and upwards advances, wherein a part enters silencing cavity by the hole of demarcation strip 6, impel the packing material that is provided with in it, suspend to fluctuate as sponge 7 and outwards transmit further to weaken motor oscillating; Another part air-flow is from the wide mouth part of internal layer cover 5 and the gap outer flow passage between the demarcation strip 6, the air-flow that enters silencing cavity simultaneously enters outer flow passage from the through hole of demarcation strip 6, the through hole 81 that air-flow in the outer flow passage is advanced downwards by supporting bracket 8 enters discharge chamber 31, discharges outside the cavitys from exhaust outlet 21 then.

In sum, motor cover structure of the present invention comprises upper chamber and lower cavity two parts, two parts cavity fixedly connected and with the impeller partial fixing of motor in upper chamber, coiler part arranged outside internal layer cover at motor, the internal layer cover is fixedlyed connected the restriction motor and is rotated with the motor end, the translation and the rotation that promptly limit motor are separated, strengthened startup stability, filler in the silencing cavity can float with air-flow and weaken the propagation of vibrations, the internal layer cover has prolonged gas flow and has greatly reduced noise being divided into outer flow passage and inner flow passage between motor coil part and the lower cavity.

Claims

1. a motor cover is characterized in that: electric motor with vane wheel part (41) is fixedly held its interior upper chamber (1); Fixedly connected with upper chamber and motor coil part (42) is held lower cavity (2) in it, wherein said lower cavity (2) bottom offers exhaust outlet (21); Be fixedly installed on the internal layer cover (5) in the lower cavity (2), described internal layer cover (5) is fixedlyed connected with the end of motor coil part (42), and internal layer cover (5) is inner flow passage and outer flow passage with the spatial division between lower cavity (2) and the motor coil part (42).

2. motor cover as claimed in claim 1, its feature exists: described internal layer cover (5) does not have supporting role to motor (4).

3. motor cover as claimed in claim 1, its feature exists: be provided with sponge (7) in the space between electric motor with vane wheel part (41) and upper chamber (1).

4. motor cover as claimed in claim 1, its feature exists: the demarcation strip (6) between upper chamber (1) and the lower cavity (2) is an orifice plate.

5. motor cover as claimed in claim 1, its feature exists: described internal layer cover (5) bottom is provided with rubber column (52), and the bottom of rubber column (52) is formed with cavity, and it matches with protruded stigma on the base plate and realizes locating.

6. motor cover as claimed in claim 1, its feature exists: described internal layer cover (5) is fixed on the supporting bracket (8), forms discharge chamber (31) between supporting bracket (8) and the body fixed head (3).

7. motor cover as claimed in claim 1, its feature exists: be provided with the noise reduction sponge between internal layer cover (5) and lower cavity (2).