CN1887188A - Vacuum cleaner - Google Patents

Abstract

The vacuum cleaner includes one fan-motor assembly to force sucked air to flow; one dust collecting unit to separate foreign matters from the air the fan-motor assembly sucks; one main tank to hold the fan-motor assembly; and one casing outside the main tank and with one auxiliary tank to increase the air exhausting area. The present invention has raised dust collecting performance.

Description

Vacuum cleaner

Technical field

The present invention relates to a kind of vacuum cleaner, especially a kind of vacuum cleaner that increases the air leaving area of being discharged.

Background technology

Traditional vacuum cleaner comprises the suction mouth of pipe that sucks foreign substances such as ground laying dust; Segregating foreign objects matter is also carried out the dust catcher body that possesses dust collecting container of control of dust; And the foreign substances that will from the above-mentioned suction mouth of pipe, suck, be incorporated into the tube connector of above-mentioned dust catcher body.

In addition, above-mentioned dust catcher body possesses the air suction apparatus that impels generation air suction strength, and the assigned position of above-mentioned dust catcher body then possesses the dust collecting container installation portion that above-mentioned dust collecting container is installed.

In addition, the both sides, rear of above-mentioned dust catcher body respectively are equipped with a wheel, also possess the rotation material caster of convertible above-mentioned dust catcher body direction at the bottom surface of above-mentioned dust catcher body front part.

But above-mentioned traditional vacuum cleaner when inhaled air is discharged to the dust catcher body outside, because of being subjected to the restriction of above-mentioned dust catcher body structure, exists the air deflation area to add narrower and small problem according to the air suction apparatus.

This shows that above-mentioned existing vacuum cleaner obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that vacuum cleaner exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.

Because the defective that above-mentioned existing vacuum cleaner exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of vacuum cleaner of new structure, can improve general existing vacuum cleaner, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.

Summary of the invention

The objective of the invention is to, overcome the defective that existing vacuum cleaner exists, be to make it that a kind of air leaving area of being discharged that increases is provided and a kind of vacuum cleaner of new structure, technical problem to be solved are provided, thereby be suitable for practicality more.

The object of the invention to solve the technical problems realizes by the following technical solutions.The vacuum cleaner that proposes according to the present invention comprises: after sucking air, make and carry out mandatory mobile fan motor assembling; From dust collecting part according to segregating foreign objects matter the said fans motor assembling leaked-in air; The major trough that holds the assembling of said fans motor in addition; And be positioned at the above-mentioned major trough outside, possess the vacuum cleaner of the fan motor housing of the auxilliary groove that increases above-mentioned air leaving area.

The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.

Aforesaid vacuum cleaner, wherein said vacuum cleaner is installed in the upper end of said fans motor field frame, and comprises the fan motor case lid of the regulation shape suction inlet that connects with above-mentioned dust collecting part.

Aforesaid vacuum cleaner, the outside of wherein said major trough need possess the through hole that connects with above-mentioned auxilliary groove.

Aforesaid vacuum cleaner is wherein installed in said fans motor field frame lower end and can be filtered the Filters of discharging air from the said fans motor field frame.

Aforesaid vacuum cleaner, the bottom of wherein said major trough should possess the groove steam vent that can discharge the inner portion of air of said fans motor field frame, and above-mentioned auxilliary groove then should possess the peristome of discharging the air that is drawn into above-mentioned auxilliary groove.

Via as can be known above-mentioned, the present invention has following advantage at least:

1, the present invention forms auxilliary groove in the fan motor housing that fan motor is installed, and can increase the effect of discharging the leaving area of air from dust catcher body thereby reach.

2, the present invention since the leaving area of air increase, thereby reach the effect that improves the cleaner dust-collection function.

In sum, the vacuum cleaner of special construction of the present invention can increase the leaving area of air.It has above-mentioned many advantages and practical value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, and more existing vacuum cleaner has the multinomial effect of enhancement, thus be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the dust catcher body oblique view that shows the vacuum cleaner according to the present invention.

Fig. 2 shows the dust collect plant possess in the separate vacuum dust catcher according to the present invention and the oblique view of dust catcher body.

Fig. 3 is the dust catcher body skiagraph that shows the vacuum cleaner according to the present invention.

Fig. 4 is the skiagraph that shows the dust collect plant embodiment 1 that vacuum cleaner possesses according to the present invention.

Fig. 5 is the upper end oblique view that shows the dust catcher body bottom casing that vacuum cleaner possesses according to the present invention.

Fig. 6 is the oblique view that shows the fan motor housing embodiment 1 that vacuum cleaner possesses according to the present invention.

Fig. 7 is the skiagraph of Fig. 6.

100: dust catcher body 110: hose transition

120: wheel 130: caster

140: fan motor assembling 150: bottom casing

160: body outlet 170: the guiding material

180: HEPA 190: the fan motor housing

191: major trough 193: through hole

195: auxilliary groove 200: dust collect plant

210: dust collecting container 211: the bottom plate

212: the first 213: the second dust storages portions of dust storage portion

215: the second whirlwind portions of 214: the first whirlwind portions

216: dividing wall 217: outflow portion

218: guide pipe 219: prevent the material that disperses

220: dust collecting container lid 230: upper end cover

233: the three exhaust outlets

The specific embodiment

Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of vacuum cleaner, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.

Seeing also Fig. 1 to shown in Figure 3, is a preferred embodiment of the vacuum cleaner according to the present invention, and canister type vacuum cleaner is described.

Vacuum cleaner comprises suction mouth of pipe (not shown), dust catcher body 100, tube connector (not shown), and wherein above-mentioned suction mouth of pipe (not shown) sucks the air that has foreign substances along with move on the ground that will sweep; Above-mentioned dust catcher body 100 is installed respectively with the above-mentioned suction mouth of pipe; In addition, the above-mentioned suction mouth of pipe and above-mentioned dust catcher body 100 interconnect, and simultaneously, the contaminated air of above-mentioned suction mouth of pipe suction are incorporated into the tube connector (not shown) of above-mentioned dust catcher body 100.

At this moment, the above-mentioned suction mouth of pipe forms the mouth of pipe suction inlet (not shown) of prescribed level on ground, and the air suction apparatus built-in according to above-mentioned dust catcher body 100 utilizes air to suck strength with the foreign substances and the together inspiration of air that accumulate on the ground.

In addition, the fan motor assembling 140 of settling the conductive part (not shown) of the above-mentioned vacuum cleaner of control in the above-mentioned dust catcher body 100 and the inner of dust catcher body force air being flowed.

As describing in detail, the upper front end of above-mentioned dust catcher body 100 possesses the hose transition 110 that connects above-mentioned tube connector, the both sides, rear of above-mentioned dust catcher body 100, for making above-mentioned dust catcher body 100 flexible movement on the ground, each settles rotatable wheel 120, and, at the ground of above-mentioned dust catcher body 100 front part, connect rotation material caster (caster) 130, make the above-mentioned dust catcher body 100 can conversion direction.

In addition, the front part of above-mentioned dust catcher body 100 is settled separable dust collect plant 200, and above-mentioned dust collect plant has from above-mentioned suction mouth of pipe inhaled air segregating foreign objects matter and carries out the function of control of dust.

Then, the air of discharging from above-mentioned dust collect plant 200 assembles 140 through regulation gas channel and the said fans motor that forms in the back quadrate part inboard of above-mentioned dust catcher body 100, is discharged to the rear of dust catcher body 100.

In addition, above-mentioned tube connector comprise connect the above-mentioned suction mouth of pipe be the prolongation pipe of firm material; Be connected with above-mentioned prolongation pipe, and be connected in the connection flexible pipe of the soft material of the hose transition 110 that is arranged on above-mentioned dust catcher body 100 the place aheads; In addition, possesses the tube connector handle in the above-mentioned prolongation pipe.

With reference to Fig. 4, the dust collect plant embodiment 1 to possessing in the vacuum cleaner of the present invention is described as follows:

Above-mentioned dust collect plant 220 comprises and roughly is dust collecting container 210 cylindraceous; Be positioned at a side of above-mentioned dust collecting container 210,, but have the dust collecting container of the above-mentioned dust collecting container 210 of switch to cover 220 as detailed description; Be connected with above-mentioned dust collecting container lid 220 by dismountable mode, and possess the upper end cover 230 of dust collect plant handle 231 in the upper end.

At this moment, above-mentioned dust collecting container 210 inside then possess first dust collecting part and second dust collecting part foreign substances and that carry out control of dust such as dust-separating, but and the bottom of above-mentioned dust collecting container 210 constitute by the bottom plate 211 of switch.

In addition, above-mentioned first dust collecting part is made of first dust separating part and the first dust storage portion 212, and the inboard of above-mentioned dust collecting container 210 is made of the container with drum.

And above-mentioned second dust collecting part is loaded on around above-mentioned first dust collecting part, constitutes by separating second dust separating part and the second dust storage portion 213 that discharge the foreign substances that comprises in the air in above-mentioned first dust collecting part.

Among the present invention, above-mentioned first dust separating part and above-mentioned second dust separating part, each freedom constitutes with the first whirlwind portion 214 and a plurality of small-sized second whirlwind portion 215 of cyclone type segregating foreign objects matter.

As describing in detail, the above-mentioned first whirlwind portion 214 is the open cylindrical vessel states in lower end, form the first suction inlet 214a that is connected with hose transition 110 (with reference to Fig. 3) in upper end side, and form the first exhaust outlet 214b of up/down perforation at the top of the above-mentioned first whirlwind portion 214 central portion.

At this moment, the above-mentioned first suction inlet 214a is incorporated into the tangential direction of the above-mentioned first whirlwind portion with the contaminated air that the outside flows into, and makes the air that flow into the above-mentioned first suction inlet 214a, carries out spiral flowing along the above-mentioned first whirlwind portion 214 inboards.

In addition, upper end in the above-mentioned first whirlwind portion 214, the small-sized above-mentioned second whirlwind portion 215 with above-mentioned dust collecting container 210 outsides formation one, circumferencial direction around above-mentioned first whirlwind portion upper end is arranged, and, above-mentioned each the second whirlwind portion, 215 upper end are in the projection of the above-mentioned first whirlwind portion 214 upper ends formation specified altitude.

And, be that above-below direction separates in the part of above-mentioned each second whirlwind portions 215 of the above-mentioned first whirlwind portion 214 upper end projections, form the second suction inlet 215a that connects with the above-mentioned first exhaust outlet 214b.

As describing in detail, in order to make the air that flow into the above-mentioned second suction inlet 215a, carry out spiral flowing along the above-mentioned second whirlwind portion 215 inboards, the above-mentioned second suction inlet 215a is tangential direction with the air of discharging among the above-mentioned first exhaust outlet 214b the interior side directed of the above-mentioned second whirlwind portion 215.

In addition, the above-mentioned second whirlwind portion 215 forms the above-mentioned dust collecting container bottom of sensing, the conical circular cone body 215d that diameter is less, and in the above-mentioned second whirlwind portion 215 lower ends, allow to discharge foreign substances such as dust, form the foreign substances outlet 215e of up/down perforation.

At this moment, the second whirlwind portion 215 that adjoins each other inserts mutually and forms one, makes between the above-mentioned second whirlwind portion 215 and can't flow out air.

And, but above-mentioned dust collecting container 210 can also be included in the dust collecting container lid 220 that the above-mentioned second whirlwind portion 215 upper ends possess switch, above-mentioned dust collecting container lid 220 can be incorporated into the above-mentioned second whirlwind portion 215 more flexibly with the air of discharging among the above-mentioned first exhaust outlet 214b.

In addition, the edge part of above-mentioned dust collecting container lid 220 has formed the second exhaust outlet 215b that discharges air through above-mentioned each second whirlwind portion.

The dust that separates in the first whirlwind portion 214 and the second whirlwind portion 215 as constituted above, store the dust storage portion that forms according to above-mentioned dust collecting container 210 outer walls and above-mentioned bottom plate 211 after, above-mentioned bottom plate 211 is opened and is discharged to the outside according to gravity.

Above-mentioned dust storage portion is made of the above-mentioned first dust storage portion 212 and the second dust storage portion 213 narrated previously, the dust that the wherein above-mentioned first dust storage portion 212 storage is separated by the above-mentioned first whirlwind portion 214, the above-mentioned second dust storage portion 213 is the dust that separates from the above-mentioned second whirlwind portion 215 of storage then.

At this moment, the above-mentioned first dust storage portion 212 connects as one in the above-mentioned second whirlwind portion 215 lower ends with the above-mentioned second dust storage portion 213, and divides by the less cylindrical shape dividing wall 216 than above-mentioned dust collecting container outer wall minor radius.

The lower end of the above-mentioned first whirlwind portion 214 will be longer than in the lower end of above-mentioned dividing wall 216, extends to the bottom of above-mentioned dust collecting container 210, above the promptly above-mentioned bottom plate 211.Thus, above-mentioned dividing wall 216 prevents that above-mentioned first dust storage portion 212 and the above-mentioned second dust storage portion 213 from connecting mutually.

In addition, make above-mentioned dividing wall 216 constitute case of bending with the cylinder direction.Its reason is the spiral flow that forms according in the above-mentioned first whirlwind portion 214 in order to prevent, the dust that will store in the above-mentioned first dust storage portion 212 by spiral flow disperses.

Except that above-mentioned formation, vacuum cleaner of the present invention also comprises 214 inside perpendicular to the above-mentioned first whirlwind portion, form a plurality of ventilating openings, the outflow portion 217 that is communicated with first exhaust outlet of the above-mentioned first whirlwind portion 214, and possess the guide pipe 218 of introducing the air that flow into the above-mentioned first suction inlet 214a in the above-mentioned first whirlwind portion 214.

At this moment, above-mentioned outflow portion 217 is direction with the axle at the above-mentioned first whirlwind portion 214 centers, and the upper end is a closed state for open lower, and down diameter will become littler, probably constitute with taper shape.

This is former because move to the above-mentioned first whirlwind portion 214 belows, and the speed of spiral flow will slow down gradually, and makes the dust that falls along the above-mentioned first whirlwind portion 214 inboards, can not be affected because of the suction strength of above-mentioned outflow portion 217.

In addition, the lower end of above-mentioned outflow portion 217 preferably possesses the material 219 that disperses that prevents that the dust that can prevent storage in the above-mentioned first dust storage portion 212 scatters and do not assemble.The above-mentioned material 219 that prevents to disperse has and prevents that the dust that gathers in the above-mentioned first dust storage portion from rising according to spiral flow, flow into the function of the second whirlwind portion 215.

For this reason, the above-mentioned material 219 that prevents to disperse can form one with above-mentioned outflow portion 217 lower ends, realizes the elongated shape with the radiation state.And, need downward-sloping above the above-mentioned material 219 that prevents to disperse.As describing in detail, the above-mentioned material 219 that prevents to disperse moves down, and its diameter will become big and form cone-shaped.

Above-mentioned guide pipe 218 will flow into the air of the above-mentioned first suction inlet 214a, is incorporated into the tangential direction of the above-mentioned first whirlwind portion 214 inboards, makes the air that prevents to flow into the above-mentioned first suction inlet 214a be fed directly to above-mentioned outflow portion 217.

In addition, but the dust collecting container lid 220 of the above-mentioned dust collecting container of switch is installed in the upper end of dust collecting container.

And, cover 220 upper ends at dust collecting container and be combined with upper end cover 230 by dismountable mode.

Above-mentioned upper end cover 230 comprises the lid housing 235 that is formed by the dust collect plant handle 231 that can carry dust collect plant, and the filter housings (not shown) that possesses of above-mentioned lid housing 235 inside.

According to an embodiment of the dust collect plant of the invention described above, as follows to the Action Specification of vacuum cleaner:

At first, operate,, make outside contaminated air flow into the above-mentioned first whirlwind portion 214 then by suction hose (not shown) and tube connector (not shown) as above-mentioned vacuum cleaner.

Flow into the air of the above-mentioned first whirlwind portion 214, by above-mentioned first suction inlet 214a and above-mentioned guide pipe 218, be not fed directly to above-mentioned outflow portion 217, and be incorporated into the tangential direction of the above-mentioned above-mentioned first whirlwind portion 214 inboards, make the formation spiral flow.

And, the dust that weight is heavier, bigger separates according to the cyclone type principle and landing gradually, stores the above-mentioned first dust storage portion 212, stores the dust of the above-mentioned first dust storage portion, then, prevent that its dust from disperseing according to above-mentioned prevent to disperse material 219 and forniciform dividing wall 216.

In addition, the air after the relatively large dust separation, be discharged to the above-mentioned first exhaust outlet 214b that a plurality of ventilating openings of forming with above-mentioned outflow portion 217 sides connect after, also have majority to flow into the above-mentioned second whirlwind portion 215, and carry out the dust separation process again.

The less dust that separates in the above-mentioned second whirlwind portion 215 then by the above-mentioned second exhaust outlet 215b, flow into the inboard of above-mentioned upper end cover.

Flow into the air of above-mentioned upper end cover 230, after in above-mentioned filter, filtering, be discharged to the rear by above-mentioned the 3rd exhaust outlet 233, and the air of discharging in above-mentioned the 3rd exhaust outlet 233 passes through the regulation gas channel that possesses in the back quadrate part of above-mentioned dust catcher body 100 and possesses the rear that said fans motor assembling 140 is discharged to dust catcher body 100.

With reference to Fig. 3 and Fig. 5, the vacuum cleaner body structure that is equipped with the fan motor assembling among the present invention is described as follows:

The dust collect plant 200 of removing foreign substances from leaked-in air can be installed in the place ahead of dust catcher body.In addition, the fan motor assembling 140 that the inner of dust catcher body force air is flowed is installed at the rear of dust catcher body.

As describing in detail, said fans motor assembling 140 places open cylindric fan motor housing 190 inside, upper end, and 190 of upper end fan motor housings place on the bottom casing 150 of above-mentioned dust catcher body.

In addition, the fan motor case lid 143 of the suction inlet 143a that possesses the regulation shape that connects with dust collect plant 200 is installed in the upper end of said fans motor field frame.And, form the housing installation portion 151 that above-mentioned fan motor housing can be installed at above-mentioned bottom casing 150.

And the lower end of said fans motor field frame 190 promptly, forms the body outlet 160 of discharging air downwards in the bottom casing 150 of above-mentioned dust catcher body.

In addition, form the bottom of the above-mentioned bottom casing 150 of above-mentioned body outlet 160, that is, the bottom of above-mentioned dust catcher body 100 need possess guiding and discharge the guiding material 170 of also discharging to above-mentioned dust catcher body 100 rears toward the below flow air from above-mentioned body outlet 160.

This former because, by above-mentioned body outlet 160, as air towards the ground that will sweep, directly below the discharge, the dust on ground will scatter and not assemble.

In addition, said fans motor field frame bottom is installed the Filters that filters the air of being discharged by the said fans motor field frame.As describing in detail, Filters is installed in the front end of above-mentioned body outlet 160.

And above-mentioned Filters need use the HEPA that filters fine dust.Above-mentioned HEPA 180 is fixed by above-mentioned guiding material 170, makes to prevent to break away from.

With reference to Fig. 6 and Fig. 7, describe the fan motor shell structure in detail, as follows:

Fan motor housing 190 is by auxilliary groove 195 formations that fan motor assembles 140 major trough 191 and forms in above-mentioned major trough outside are installed in the inner space.

The upper end of above-mentioned major trough 191 is an open state, forms the through hole 193 that connects with above-mentioned auxilliary groove 195 in the outside of above-mentioned major trough 191, and above-mentioned through hole 193 minimum will formation more than one, needs to form the frame shape.

The bottom central part of above-mentioned major trough 191 forms the fan motor installation portion 191a that is installed on fan motor assembling bottom, and forms the groove steam vent 191c of regulation shape on the position of closing on the said fans motor mounting 191a of portion.The air that this groove steam vent 191c is equivalent to flow into above-mentioned major trough 191 inside is discharged to the passage of fan motor housing 190 outsides.

In addition, need in the assigned position of above-mentioned major trough 191 bottoms, to form in conjunction with minimum more than one first housing of fan motor assembling 140 and fan motor housing 190 191b of company headquarters mutually, and, form the second housing phase 191d of company headquarters that fan motor housing 190 is incorporated into dust catcher body bottom casing in the outside of above-mentioned major trough.

One side of above-mentioned major trough 191 inside, installation can be controlled the control part (not shown) of said fans motor assembling 140.As describing in detail, above-mentioned control part is installed in the control part mounting groove that forms in the above-mentioned major trough.

No doubt, above-mentioned control part mounting groove is formed at the outside of fan motor housing, also above-mentioned control part can be installed.Above-mentioned major trough 191 reality are cylindric, are not limited to this but do not invent, and can be designed to comprise the polygonal column of quadrangular prism shape.

The minimum formation more than one of above-mentioned auxilliary groove 195 in the outside of above-mentioned major trough 191, and link to each other with major trough 191 by above-mentioned through hole 193, and the upper end of above-mentioned auxilliary groove is a closed condition, discharges the peristome 195a of the air that is drawn into above-mentioned auxilliary groove in the bottom formation of above-mentioned auxilliary groove.As describing in detail, above-mentioned peristome 195a forms the bottom of above-mentioned auxilliary groove and all opens, and the height of above-mentioned auxilliary groove will be lower than the height of above-mentioned major trough.

The above-mentioned air flow process that enters into the fan motor housing of simple declaration is as follows:

Start fan motor, the housing suction inlet of the air of discharging from dust collect plant by forming in the fan motor case lid is drawn into the inside of fan motor housing 190.Like this, be drawn into the part of air of above-mentioned major trough 191,, be discharged to the outside of fan motor housing 190 by the groove steam vent 191c that forms at major trough 191 bottoms.

In addition, suck the remaining air in back by above-mentioned major trough, flow into auxilliary groove 195 by through hole 193 after, again by the bottom of above-mentioned auxilliary groove, be discharged to the outside of fan motor housing 190.

In sum,, auxilliary groove 195 has been installed in the fan motor housing, thereby has been made the leaving area that has increased the discharge air that is drawn into the fan motor assembling for solving the drawback problem of above-mentioned conventional art.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (5)

1, a kind of vacuum cleaner is characterized in that it comprises:

Make the air after the suction carry out mandatory mobile fan motor assembling;

The dust collecting part of segregating foreign objects matter from said fans motor assembling leaked-in air;

The major trough that holds the assembling of said fans motor; And

Be positioned at the above-mentioned major trough outside, possess the vacuum cleaner of the fan motor housing of the auxilliary groove that increases above-mentioned air leaving area.

2, vacuum cleaner according to claim 1 is characterized in that wherein said vacuum cleaner is installed in the upper end of said fans motor field frame, and comprises the fan motor case lid of the regulation shape suction inlet that connects with above-mentioned dust collecting part.

3, vacuum cleaner according to claim 1 and 2, its feature are that also the outside of wherein said major trough possesses the through hole that connects with above-mentioned auxilliary groove.

4, vacuum cleaner according to claim 3 is characterized in that at the bottom of said fans motor field frame the Filters that filters the air of discharging in the said fans motor field frame being installed.

5, vacuum cleaner according to claim 3, the bottom that it is characterized in that wherein said major trough possesses the groove steam vent that can discharge the inner portion of air of said fans motor field frame, and above-mentioned auxilliary groove then possesses the peristome of discharging the air that is drawn into above-mentioned auxilliary groove.

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