CN103202677A - Electric vacuum cleaner - Google Patents

Abstract

The invention provides an electric vacuum cleaner which may maintain airtightness between air suction and air exhaust of an electric blower and can inhibit transmission of vibration of the electric blower. The electric vacuum cleaner has an electric blower which has a housing equipped with a protrusive-shaped intake opening, a housing for receiving the electric blower, and airtight component which are configured to be around the intake opening of the electric blower and between the intake opening and the housing, wherein the airtight components realize a vibration-proof portion for inhibiting vibration and an airtight portion which acquires airtightness on an air suction side and an air exhaust side of the electric blower in different shapes. One side of the airtight portion is provided with an annular portion which faces the housing and is expanded relative to a front end of the root, and the other side of the airtight portion is provided with projections, which abut against an outer circumference of the protrusive part of the intake opening of the electric blower, on inner circumferences of the airtight components.

Description

Electric dust collector

Technical field

The present invention relates to airtight construction and the vibration-proof structure of the electric blower of electric dust collector.

Background technology

In electric dust collector, the problem of the known vibration that electric blower arranged and cabinet, atmospheric propagation and the vibrating noise that produces.Reduce relevant countermeasure with vibrating noise and have inhibition from the method for the generation of vibration source and the method for the propagation of the vibration that reduces electric blower, as the latter's prior art, the known technology that patent documentation 1 is arranged.

In patent documentation 1, record be installed in suction hole around vibration-proof rubber hold concurrently seal, be installed in the vibration-proof structure of rear portion vibration-proof rubber of the end of motor part side.

The prior art document

Patent documentation 1: Japanese kokai publication hei 2-279123 communique

Clean to electric dust collector expectation exhaust.But there is problem shown below in the prior art that patent documentation 1 is put down in writing.

Support the vibration-proof rubber radially of electric blower as critical piece and hold concurrently seal in order to improve vibration-isolating effect, need to reduce rigidity radially, but easy deformation and can't support electric blower.When improving rigidity in order to support, vibrating noise increases.

In addition, the electric dust collector of exhaust by cleaning generally arranges filter in the downstream of electric blower.Filter is owing to be flow passage resistance force of waterproof, and therefore the pressure of the housing of built-in electric blower rises.In the occasion of utilizing above-mentioned this purpose of existing techniques in realizing, since the exhaust of electric blower with air-breathing by the vibration-proof rubber seal separation of holding concurrently, therefore when wanting to improve vibration-isolating effect, need make the vibration-proof rubber seal softness of holding concurrently, thereby can't keep airtight, exhaust and inhalation cycle, the intake performance deterioration.On the contrary, improve when airtight vibration-isolating effect deterioration and vibration is increased when wanting to overcome the internal pressure of housing.

In addition, when installing towards the mode of the top of main body with the suction inlet of electric blower, because being installed in the rear portion vibration-proof rubber of the outlet side end of electric blower is elastomer, therefore by electric blower self because the displacement downwards of conducting oneself with dignity, the vibration-proof rubber seal of holding concurrently is fixed on the occasion of main body side, vibration-proof rubber hold concurrently seal and electric blower housing parts from, can't keep airtight.In addition, be fixed on the occasion of electric blower side at seal that vibration-proof rubber is held concurrently, the vibration-proof rubber seal of holding concurrently separates with housing, can't keep airtight equally.In addition, when the temperature of electric blower was risen, because the heat of electric blower, the hardness of rear portion vibration-proof rubber descended, and is big by the displacement quantitative change of the electric blower that produced by deadweight, therefore keeps airtight more remarkable.When installing in the mode of suction inlet below main body of electric blower, seal is elastomer because vibration-proof rubber is held concurrently, therefore electric blower separates with the rear portion vibration-proof rubber of the outlet side end that is installed in electric blower, the support of electric blower is insufficient, by the possibility height that impact of electric blower etc. is caused the electric blower position deviation, become by with the vibrating noise cause of increased that causes that contacts of parts on every side.

In addition, the vibration-proof rubber seal of holding concurrently only is installed in the housing department of electric blower, goes forward to come off being assembled in main body sometimes, and assembleability is poor.In addition, also considered to utilize the fixing of adhesive tape etc., but these costs are higher.Summary of the invention

Therefore, no matter the object of the present invention is to provide the direction that arranges of motor all to guarantee airtight between the suction and discharge of electric blower, and the electric dust collector that is difficult to transmit the vibration of electric blower.

The invention is characterized in, realize that with different shapes the vibration that suppresses vibration prevents portion's (for example vibrationproof projection) and the suction side that obtains electric blower and the airtight airtight portion of exhaust side, one side of airtight portion is provided with the annulus (for example antivibrating parts first airtight portion) that enlarges with respect to the root front end towards the shell of electric blower, and the opposing party is provided with projection (for example second of the antivibrating parts airtight portion) with the periphery butt of the suction inlet eyeball portion of electric blower at the inner peripheral surface of airtight member.

Effect of the present invention is as follows.

According to the present invention, owing to utilize different shapes to realize suppressing the vibration vibrationproof portion and the suction side that obtains electric blower and the airtight airtight portion of exhaust side of vibration, therefore can constitute respectively vibrating effective shape and to airtight effective shape, can having vibrationproof and airtight concurrently.

In addition, around the suction inlet that is configured in electric blower and the parts between the housing possess with a plurality of projections be configured to ring-type first annulus, form and form second annulus (the first airtight portion) that front end enlarges laterally with respect to root by the thin plate of ring-type, therefore can constitute respectively vibrating effective shape and to airtight effective shape, can having vibrationproof and airtight concurrently.And, as long as the vibration of electric blower is difficult to be delivered on the housing, just can reduce the noise of electric blower, as long as can keep airtight between the suction and discharge of electric blower, just can improve the suction efficiency of electric blower.

In addition, owing to can utilize the 3rd annulus (the second airtight portion) of the inboard that is located at second annulus and first annulus to keep suction side and exhaust side in the thrust direction of electric blower and two sides of radiation direction, even therefore electric blower also can keep airtight at thrust direction or radiation direction top offset.

In addition, in the time of on being installed in electric blower, by exerting pressure and be out of shape from the outside being located at enclosure space between second annulus and the 3rd annulus, the enclosure space that is located between second annulus and the 3rd annulus is negative pressure, because utilization and draught head on every side are fixed on the electric blower as sucker, therefore even go forward being assembled in main body, parts can not come off yet, can be not raising assembleability with raising the cost.

Description of drawings

Fig. 1 is the sectional elevation of the main body of dust collector of an embodiment.

Fig. 2 (A) is the stereogram of the dust collect plant of an embodiment, (B) is the sectional elevation of the dust collect plant of an embodiment.

Fig. 3 (A) is the inner core of an embodiment and the stereogram of urceolus, (B) is the stereogram of dorsal part of the inner core of an embodiment.

Fig. 4 (A) is the stereogram of state of protecgulum of having opened the dust folding and unfolding portion of an embodiment, (B) is the stereogram of state of rear portion filter of having opened the dust folding and unfolding portion of an embodiment.

Fig. 5 (A) is the front view of protecgulum of observing the dust folding and unfolding portion of an embodiment from the dust folding and unfolding portion outside, (B) is the front view from the protecgulum of the dust folding and unfolding portion of the inboard embodiment of observation of dust folding and unfolding portion.

Fig. 6 is the front view of observing the protecgulum of the dust folding and unfolding portion of having unloaded an embodiment from dust separation portion side.

Fig. 7 is the skeleton diagram of the electric dust collector of an embodiment.

The section plan of the main body of dust collector of Fig. 8 air intake passage that has been staying of an embodiment and cable reel.

Fig. 9 is the exploded perspective view of air intake passage, exhaust passage, housing, filter and the electric blower of an embodiment.

Figure 10 is the stereogram when observing the air intake passage of an embodiment from the electric blower side.

Figure 11 is the upward view of observing the air intake passage of an embodiment from the elastomeric element side.

Figure 12 is the stereogram of the elastomeric element of an embodiment.

Figure 13 (A) is the cutaway view of air intake passage, housing and the airtight liner of an embodiment, (B) is the cutaway view of the airtight liner of an embodiment.

Figure 14 (A) is the cutaway view of air intake passage, fixed cover and the elastomeric element of an embodiment, (B) is the cutaway view of the elastomeric element of an embodiment.

Figure 15 is the stereogram of observing the fixed cover of an embodiment from the air intake passage side.

Among the figure: 1-main body of dust collector, 2-dust collect plant, 3-inlet tube, 4-dust separation portion, 5-dust folding and unfolding portion, 6-urceolus, 7-inner core, 8,39-recess, 9,22,25-liner, 10-housing, 11-protecgulum, 12-control of dust basket, 13,14,31,32-axle, 15,29-filter, 16,53-handle, 17-button, 18-baton pass, 20-hose coupling pipe, 21-main body air entry, 23-Caster support portion, 24-dust arrester, 26-after-filter, 27-air intake passage, 27a-opening, 27b-outlet, the 27c-A of mountain portion, airtight of 27d-passage, 28-electric blower, 28a-suction inlet, 28b-exhaust outlet, 28c-shell surface, 28d-eyeball portion, 30-main body exhaust outlet, 33-through hole, 34-epitaxy part, 35-outer side runner, 36-interior side runner, 38-guiding tube, 40-exhaust passage, 41-cable reel, 42-cable reel chamber, 43-plug, 44-outer peripheral portion, 45-housing, 47-flexible cord, 49-substrate, 50-suction fitting, 51-junction block, 52-operation pipe, 54-flexible pipe, 55-wheel, 60-step, 61-dividing plate, 62-circular rib, 63-liner pressing piece, 64-space, 101-elastomeric element, 101a-antivibrating parts first airtight portion, 101b-airtight portion, the 101c-fixing groove of using, 101d-protuberance, 101e-vibrationproof projection, the 101f-antivibrating parts second airtight portion, 102-fixed cover, 102a-positioning convex portion, 102b-airtight, 102c-installing hole, 102d-rib, 103-airtight liner, 103a-exhaust lip, 104-wheel hub, 105-location indentations, 107-screw fixture, 108-positioning rib, 110-edge part, the 110a-B of mountain portion, 111-wall, 112-gap, 113-antivibrating parts, 114-exhaust side space, space, 115-suction side, 116-pressure at expulsion, 117-pressure of inspiration(Pi), 118-enclosure space.

The specific embodiment

The present invention is not owing to be to utilize parts but with different shapes the vibration that suppresses vibration is set to prevent portion and the airtight shape that obtains suction side and exhaust side, therefore can constitute respectively vibrating effective shape and to airtight effective shape, can having vibrationproof and airtight concurrently.In addition, because the vibration portion of preventing of airtight member is a plurality of convex forms, therefore convex form is crushed equably one by one, suppresses the vibration from electric blower easily.In addition and since the maintenance of airtight member airtight be shaped as laminal shape, therefore follow the direction of suction and discharge easily, the suction and discharge performance is difficult to descend.In addition, (the first airtight portion) is laminal shape by the airtight shape of the maintenance of airtight member, and laminal front end roughly tilt laterally 30 the degree and enlarge, front end stably can be assembled on the same direction.In addition, because in when assembling, front end always is urged with respect to airtight the thrust direction at electric blower, therefore also can guarantee during at the radiation direction top offset airtightly at electric blower, the suction and discharge performance is difficult to descend.In addition, the airtight shape (the second airtight portion) of the maintenance of another airtight member also is laminal shape, these axle centers towards electric blower are made as circle, littler than the suction inlet jut external diameter of electric blower by its minimum diameter, when assembling, therefore the shape of the suction inlet jut of laminal shape and electric blower as one man is out of shape, and also can guarantee during at the thrust direction top offset airtightly at electric blower, and the suction and discharge performance is difficult to descend.In addition, by first airtight and the second airtight portion are set, enclosure space is set betwixt, exerting pressure and make in the enclosure space in this space when assembling is negative pressure, these parts are adsorbed on as sucker on the electric blower, and parts can not come off when assembling, can improve assembleability.By such this structure of employing, can provide to obtain the airtight of air-breathing and exhaust easily and do not make the dust catcher that pumping property worsens and noise is low, easy to use.

Fig. 1 is the sectional elevation of the main body of dust collector of expression one embodiment of the invention.In addition, Fig. 8 is illustrated in the section plan of the main body of dust collector of the present embodiment when dissecing main body of dust collector 1 under the state that has unloaded dust collect plant 2.Preferably under the use state of electric dust collector, main body of dust collector 1 is horizontal, and under the folding and unfolding state of electric dust collector, main body of dust collector 1 is put for vertical.Under the use state at electric dust collector, with main body air entry 21 sides as the place ahead (upstream side), with main body exhaust outlet 30 sides during as rear (downstream), under the folding and unfolding state of electric dust collector, the main body air entry 21 forced direction upside of attaching most importance to, the main body exhaust outlet 30 forced direction downside of attaching most importance to.In the occasion of horizontal main body of dust collector 1, the lower surface of main body of dust collector 1 is parallel with respect to the face (for example ground) of placing main body of dust collector 1, and is vertical with respect to the gravity action direction.In addition, in the present embodiment, in the occasion of horizontal main body of dust collector 1 as shown in Figure 1, to have a side of main body air entry 21 as the place ahead of main body of dust collector 1, to have a side of main body exhaust outlet 30 as the rear of main body of dust collector 1, be called to the rear from the place ahead of main body of dust collector 1 main body of dust collector 1 vertically.In addition, in the present embodiment, in the occasion of horizontal main body of dust collector 1 as shown in Figure 1, to have a side of handle 16 as the top of main body of dust collector 1, to have a side of substrate 49 as the below of main body of dust collector 1, be called the short transverse of main body of dust collector 1 from the top of main body of dust collector 1 to the below.In addition, in the present embodiment, as shown in Figure 8, the direction that will be positioned at the axletree (not shown) of the both sides of main body of dust collector 1 is called width.

The structure of main body of dust collector 1 at first, is described.The dust collect plant 2 of catching dust from inhaled air loads and unloads the front side that is configured in main body of dust collector 1 freely.When the length direction that makes dust collect plant 2 (axially) was attached most importance to forced direction (vertical formula configuration), the height of main body of dust collector 1 uprised.On the other hand, axially (dust collect plant 2 axially) of the rotating flow in the dust collect plant 2 is more big by the separating effect that centrifugation produces the closer to the gravity action direction, when the rotating flow in the dust collect plant 2 axially surpass 45 when spending with respect to the gravity action direction, the separating effect that is produced by centrifugation descends terrifically.Therefore, in order to reduce the height of main body of dust collector 1, and suppress the decline of the separating effect that produced by centrifugation, in the present embodiment, dust collect plant 2 be about 40 degree～45 degree with respect to the gravity action direction axially.But, in order to improve the separating effect that is produced by centrifugation, dust collect plant 2 axially can be with respect to the gravity action direction than 40 degree little (for example 0 spends).Replacement separates portion's (rotating part) 4 with dust and is located at downside, and dust folding and unfolding portion 5 is configured in upside, also dust can be separated portion 4 and be configured in upside, and dust folding and unfolding portion 5 is configured in downside.In this occasion, preferred inlet tube 3 is connected on the periphery of axial anterior end of dust separation portion 4.

Dust collect plant 2 possesses the inhaled air of making rotation, make the dust separation portion 4 of dust separation and separate portion 4 with control of dust by centrifugation (cyclone mode) to be communicated with, and folding and unfolding is by the dust folding and unfolding portion 5 of the dust of dust separation portion 4 separation.Dust separation portion 4 and dust folding and unfolding portion 5 be arranged in dust collect plant 2 axially on, connect and be communicated with at separately axial end portion.That is, dust separation portion 4 is configured in the front side of main body of dust collector 1, and dust folding and unfolding portion 5 is configured in the rear side of main body of dust collector 1 with respect to dust separation portion 4.Separate portion 4 and dust folding and unfolding portion 5 to link dust for the portion of dirt separation separation easily 4 with the mode of dust folding and unfolding portion 5.The main body air entry 21 that possesses tubulose at the front end of main body of dust collector 1.A part of opening of the axial anterior end surface of dust separation portion 4 is connected this peristome on the inlet tube 3.But also can not the axial anterior end surface of dust separation portion 4, but the periphery that dust separates the axial anterior end of portion 4 is connected on the inlet tube 3.Preferred inlet tube 3 is formed on the central authorities of the width of main body of dust collector 1.Preferred inner core 7 and recess 8 also are formed on the central authorities of the width of main body of dust collector 1.

Dust separation portion 4 possesses hollow roughly urceolus 6 cylindraceous, with urceolus 6 concentric shafts and be built in hollow roughly inner core 7 cylindraceous in the urceolus 6.In order to suppress owing to gravity departs from the gravity action direction separating effect that is produced by centrifugation to be descended owing to the axle center of rotating flow, the occasion that axially tilts with respect to the gravity action direction in dust separation portion 4, the axle center that can make inner core 7 with respect to the axle center of urceolus 6 below upwards depart from.Shown in Fig. 3 (A), the part the opening of an axial end face (anterior end surface) on being connected inlet tube 3 of urceolus 6 is closed, the axial other end of urceolus 6 (rear side end face) opening.Urceolus 6 can be seen the accumulation of dust for the user or be located at the outer sensors of urceolus 6 and can detect the accumulation of dust and preferably be made of transparent or semitransparent plastics or resin.An axial end face (anterior end surface) of inner core 7 is closed, the axial other end of inner core 7 (rear side end face) opening.Shown in Fig. 3 (A), form the recess 8 recessed towards the axial inboard of inner core 7 in the central authorities of the enclosure portion of the axial end face of inner core 7.The enclosure portion of inlet tube 3 and an axial end face of inner core 7, be that recess 8 is relative.Shown in Fig. 3 (A), the part of recess 8 arrives the outer circumference end of inner core 7.In order to reduce the pressure loss of air, the opening direction of preferred recess 8 is following directions.But the opening direction of recess 8 can be that upward direction also can be horizontal.Shown in Fig. 3 (A), at the peripheral end of the inner core 7 of recess 8, recess 8 is not straight along the radial direction of inner core 7, but tilts a little in a circumferential direction.As shown in Figure 1, the axial degree of depth of recess 8 is roughly about half of axial length of the cylindrical portions may of inner core 7.But the axial degree of depth of recess 8 can be on the axial roughly total length of the cylindrical portions may of inner core 7.In this occasion, on the roughly total length of the cylindrical portions may of inner core 7, form the opening of recess 8 in the part of the periphery of inner core 7.In addition, the peripheral end at recess 8 is connected with guiding tube 38.The cross section of guiding tube 38 roughly is 1/4 toroidal, and along the outer peripheral face formation of inner core 7, the outer peripheral face of inner core 7 also forms the part of the internal face of runner.Guiding tube 38 along the circumferential direction forms about several cm at the outer peripheral face of inner core 7.Thus, utilize inlet tube 3 in the axial direction leaked-in air utilize recess 8 to change direction at radial direction, and, change a little in a circumferential direction at the peripheral end of the inner core 7 of recess 8, and in guiding tube 38, along the circumferential direction change.In addition, preferred recess 8 does not have concavo-convex, forms with curved surface.Thus, can suppress the pressure loss and air is rotated fully.Guiding tube 38 can not have.Periphery in the axial other end of inner core 7 (rear side end face) forms the epitaxy part 34 of tube 6 extensions outward.That is, shown in Fig. 3 (A), the axial other end of inner core 7 (rear side end face) is interior side opening circular of inner core 7.

Shown in Fig. 3 (A), a part of opening of the circumferencial direction of epitaxy part 34.By this opening, inner core 7 outer air can flow in the dust folding and unfolding portion 5.Inner core 7 be in order to suppress bacterial reproduction, preferably is made of the metal with antibacterial action (for example silver, copper) or the coated metal (for example stainless steel) that contains antibacterial material (for example silver, copper).But inner core 7 comprises that cylindrical portions may also can be made of resin.And, shown in Fig. 3 (A), insert inner core 7 vertically by the axial other end from urceolus 6, interior all butts of the outer circumference end of epitaxy part 34 and urceolus 6, its result, the axial other end of sealing urceolus 6.With the user easily the mode of separating outer barrel 6 and inner core 7 link urceolus 6 and inner core 7.Periphery at inner core 7 possesses a plurality of through holes 33.Utilize a plurality of through holes 33, inner core 7 has filtering function.Utilize this through hole 33, bigger rubbish can not flow in the inner core 7, and air can be from side inflow in the inner core 7 lateral inner cores 7.Though utilize inhalation power, the rubbish of the weight that a coin is above can't drink up in urceolus 6, remains in sometimes in the urceolus 6.By with the user easily the mode of separating outer barrel 6 and inner core 7 link urceolus 6 and inner core 7, the user is separating outer barrel 6 and inner core 7 easily, the rubbish that is deposited in the urceolus 6 can be easily discharged, in addition, hair or the end of a thread on the through hole 33 that hangs over inner core 7 can be easily removed.

Airtight for the connecting portion that keeps dust separation portion 4 and dust folding and unfolding portion 5 possesses liner 9 in the axial other end of inner core 7.Liner 9 not only is located on the epitaxy part 34, also axially giving prominence at inner core 7.Thus, the inboard of inner core 7 is not hollow completely, utilizes liner 9, has the partial closure space.In addition, at interior side-prominent part formation to the axial inboard of the inner core 7 recessed recess 39 of liner 9 to inner core 7.Recess 39 has the function of handle.Thus, the user can insert recess 39 with finger, thereby keeps dust separation portion 4 or inner core 7.A part of opening of the upside of epitaxy part 34, and be communicated with the outer side runner 35 of protecgulum 11.That is, the outside of the cylindrical portions may of the inboard of urceolus 6 and inner core 7 is communicated with the outer side runner 35 of protecgulum 11.Shown in Fig. 3 (A), the preferred wall height of a side relative with the opening of guiding tube 38 in a circumferential direction of the wall of the circumferencial direction of the opening of the part of the upside of epitaxy part 34, the wall of the open side of guiding tube 38 is low in a circumferential direction.For example, in the occasion from forward observation dust separation portion 4, when the opening direction of guiding tube 38 is counter clockwise direction, the wall height in left side in the wall of the circumferencial direction of the opening of the part of the upside of epitaxy part 34, the wall on right side is low.That is, because therefore a part of opening of the upside of epitaxy part 34, in a week of the periphery of the not enough inner core 7 of the circumferencial direction of epitaxy part 34, departs from helical form.Thus, the high wall collision of the circumferencial direction of the opening of the part of the rotating flow outside the inner core 7 and the upside of epitaxy part 34 can change direction swimmingly in the axial direction, and the dust that rotating flow contains also flows to dust folding and unfolding portion 5 easily.On the other hand, the inboard of inner core 7 is communicated with the interior side runner 36 of protecgulum 11.

Dust folding and unfolding portion 5 possesses an axial end face (anterior end surface) and axial other end (rear side end face) opening, and the longitudinal section is the hollow housing 10 of del roughly.An axial end face of housing 10 is by protecgulum 11 sealings that can open and close.Possess axle 31 in the bottom of protecgulum 11, axle 31 is supported by the bottom of housing 10.Protecgulum 11 can with axle 31 be fulcrum housing 10 axially on before and after rotate.Pawl is side-prominent to the housing 10 of the upper end of protecgulum 11.On the other hand, possessing the button 17(that the user can press at the preceding upper lateral part of housing 10 can be bar), linking at button 17 has the baton pass (bar) 18 that can extend in the front side of housing 10.One end of baton pass 18 is attached on the button 17, and the other end of baton pass 18 forms claw-like.The pawl of the other end of baton pass 18 can be engaged on the pawl of upper end of protecgulum 11.Under the state that protecgulum 11 is closed on the housing 10, the pawl of the other end of baton pass 18 cooperates with the pawl of the upper end of protecgulum 11, can prevent that protecgulum 11 from opening.And when the user pressed the button 17, baton pass 18 side forward slided (also can rotate at upside), and the pawl of the other end of releasing baton pass 18 cooperates with the pawl of the upper end of protecgulum 11, can utilize gravity to open protecgulum 11 from housing 10.Formation direction with respect to handle 16 is level, and the normal direction of an axial end face of housing 10 (being equivalent to protecgulum 11 parts) tilts 45 °～50 ° with respect to horizontal direction.That is, when the user held handle 16 and mentions dust folding and unfolding portion 5, an axial end face of housing 10 (being equivalent to protecgulum 11 parts) was towards direction (gravity action direction) down.Thus, protecgulum 11 can utilize gravity to open from housing 10.In addition, as described later, control of dust cage (dust collecting container) is if 12 with by the preceding side-prominent mode reinforcing of spring (elastomer) to housing 10, then control of dust cage 12 pushes the back of protecgulums 11, therefore when the user pressed the button 17, protecgulum 11 also can utilize the pressing force of control of dust cage 12 to open from housing 10.In other words, pressed by the back of protecgulum 11 by the opening surface of control of dust cage 12,12 folding and unfoldings of control of dust cage in housing 10, and are kept this folding and unfolding state.

The axial other end of housing 10 is by filter 15 sealings that can open and close.Possess axle 32 in the bottom of filter 15, axle 32 is supported by the bottom of housing 10.Filter 15 can with axle 32 be fulcrum housing 10 axially on before and after rotate.Filter 15 forms the filter element that is folded into the creasing shape in cross sectional shape is roughly tetragonal framework.Shown in Fig. 4 (B), the ripple direction of filter element is preferably short transverse (gravity action direction).Filter 15 for example is highdensity HEPA filter (High Efficiency Particulate Air Filter).So-called HEPA filter refers to that be that the particle of 0.3 μ m has the particle capture rate 99.97% or more with nominal air delivery with respect to particle diameter, and has the air cleaner that the initial stage pressure loss is the performance below the 245Pa.Face at the opposition side of the housing 10 of filter 15 possesses liner 25.Utilize liner 25, can keep especially air intake passage 27 entrances of the axial other end of dust folding and unfolding portion 5 and main body of dust collector 1() airtight.In addition, axle 31 can share with axle 32.In addition, axle 32 can not be positioned at the bottom of filter 15, and is positioned at the upper end of filter 15.

Built-in control of dust basket 12 in housing 10.The shape of control of dust basket 12 can be the basket shape of a face opening, three-dimensional shape, box shape or container shapes, also can be the dustpan shape.That is, control of dust basket 12 have to the recessed shape of opening opposition side.The cross sectional shape of control of dust basket 12 can be quadrangle shape roughly, also can be the circular shape, also can be the general triangular shape.The cross sectional shape of control of dust basket 12 preferably diminishes to the bottom surface from opening surface.Thus, owing to sectional area enlarges towards a side (open side) of discharging dust, so the user can easily discharge the dust that is deposited in the control of dust basket 12.The shape of control of dust basket 12 is formed by framework (support).Bottom surface beyond the opening surface of control of dust basket 12, face covers or is pasted with the grid mesh part that is made of metal or nylon etc. up and down.In the bottom surface of control of dust basket 12, also have aeration at face up and down by not only, even dust is deposited in the bottom surface of control of dust basket 12, also can guarantee runner, can reduce to suck the pressure loss of air, suppress attraction and descend.This grid mesh part has aeration, has the filtering function of catching dust.As long as have gas permeability, and have the filtering function of catching dust, also can replace grid mesh part, change and make disposable thin sand paper, also can make up grid mesh part and thin sand paper.For example, the user can install thin sand paper at grid mesh part.The opening surface of control of dust basket 12 is consistent with the opening surface of an axial end face (anterior end surface) of housing 10.That is, the opening direction of control of dust basket 12 is identical with the opening direction of an axial end face of housing 10.And, as shown in Figure 6, the upside of the outer circumference end of the opening surface of control of dust basket 12 about half with the inner peripheral surface butt of the axial end face of housing 10, the downside of the outer circumference end of the opening surface of control of dust basket 12 about half not with the inner peripheral surface butt of the axial end face of housing 10.Possesses axle 14 in control of dust basket 12 bottoms.Axle 14 is supported in the housing 10.Thus, control of dust basket 12 can be that fulcrum rotates in the axial front and back of housing 10 with the axle 14 of bottom.Thus, when opening protecgulum 11 from dust folding and unfolding portion 5, the part of control of dust basket 12 can utilize gravity outstanding from control of dust folding and unfolding portion 5.Axle 14 is same side (downside) with respect to the formation position of housing 10 with the axle 31 formation positions with respect to housing 10, therefore when opening protecgulum 11 from dust folding and unfolding portion 5, the part of control of dust basket 12 can not can be hindered ground outstanding from dust folding and unfolding portion 5 by protecgulum 11.In addition, can possess elastic force at axle 14 and act on helical spring on the direction of control of dust basket 12 being pushed to protecgulum 11 sides.Thus, when opening protecgulum 11 from dust folding and unfolding portion 5, the part of control of dust basket 12 can utilize the elastic force of spring to give prominence to from dust folding and unfolding portion 5 surgingly, and the user can easily discharge the dust that is deposited in the control of dust basket 12.In addition, preferred control of dust basket 12 is being divided into two up and down, namely by the framework (support) of the first half and two works formations of the framework (support) of the latter half.The control of dust basket 12 that is divided into two is linked by the axle 13 in the outside of the bottom surface that is formed on control of dust basket 12.Thus, shown in Fig. 4 (A), control of dust basket 12 is fulcrum with the centre of bottom surface, and the opening surface of control of dust basket 12 is divided up and down.Especially when the part of control of dust basket 12 was given prominence to from dust folding and unfolding portion 5, control of dust basket 12 was divided up and down.Thus, the user can more easily discharge the dust that is deposited in the control of dust basket 12.Especially the dust that is bonded at the inner surface of control of dust basket 12 also can easily fall.But two structures of cutting apart up and down of control of dust basket 12 not necessarily.In addition, as mentioned above, the front side of housing 10 tilts 40 °～45 ° with respect to the gravity action direction, and control of dust basket 12 gives prominence to from the dust folding and unfolding portion 5 30 ° of ground that tilt, and therefore can discharge the dust that is deposited in the control of dust basket 12 at gravity direction roughly.

In protecgulum 11, form outer side runner 35 and the interior side runner 36 that connects in the axial direction.And, outer side runner 35 is formed on the upside of protecgulum 11, one end of outer side runner 35 separates the especially open communication of the epitaxy part 34 between the tube portion of urceolus 6 and inner core 7 of portion 4, the open communication of the especially control of dust basket 12 of the other end of outer side runner 35 and housing 10 with dust.For the dust that prevents from when electric dust collector stops, being deposited in control of dust cage 12 runner 35 and dust separation portion 4 adverse currents laterally, be communicated with near leaning on upside or upper end than half part in the other end of preferred outer side runner 35 and the opening of control of dust basket 12.In addition, for the dust that prevents from being deposited in control of dust basket 12 when electric dust collector stops runner 35 and dust separation portion 4 adverse currents laterally, the inside of preferred side runner 35 outside or the other end form the check-valves (not shown) that covers outer side runner 35.Check-valves is that fulcrum rotates in control of dust basket 12 with the upper end.But check-valves is structure not necessarily.The sectional area of outer side runner 35 enlarges towards the other end from an end of outer side runner 35.The formation direction of outer side runner 35 be from an end of outer side runner 35 towards the other end and from the outside of protecgulum 11 towards the direction of central side.That is be towards the direction of central side from the outside of control of dust basket 12.In order to suppress the disorder from outer side runner 35 to control of dust basket 12 leaked-in airs, the formation direction of preferred outer side runner 35 is directions of wall (upside wall) of a side of outer side runner 35 connections of control of dust basket 12.Interior side runner 36 forms central authorities from protecgulum 11 to downside, one end of interior side runner 36 separates the especially inner core 7 of portion 4 with dust axial other end opening (in the inner core 7) is communicated with, and the other end of interior side runner 36 is communicated with the outside of the especially control of dust basket 12 of housing 10.The other end of side runner 36 is communicated with the outer lower side of control of dust basket 12 in preferred.Interior side runner 36 is avoided outer side runner 35 and is formed.The sectional area of interior side runner 36 is opposite with outer side runner 35, dwindles towards the other end from an end of interior side runner 36.

Upper outside in dust folding and unfolding portion 5 possesses handle 16 that extend, that the user can hold in the horizontal direction.The user can mention dust folding and unfolding portion 5 upward holding this handle 16, dust is separated following of the state that portion 4 stays in the main body of dust collector 1 dust folding and unfolding portion 5 is taken out from main body of dust collector 1.In addition, as long as link dust separation portion 4 and dust folding and unfolding portion 5, if the user holds this handle 16 dust folding and unfolding portion 5 is mentioned upward, just can make dust separation portion 4 and dust folding and unfolding portion 5 one, namely dust collect plant 2 itself can be taken off from main body of dust collector 1.As shown in Figure 1, the formation direction ratio vertical plane (gravity action direction) of the axial other end (being equivalent to filter 15 parts) of preferred dust folding and unfolding portion 5 rolls tiltedly to housing 10.That is, preferred bottom is than close housing 10 sides in the top of an axial end face of dust folding and unfolding portion 5.In addition, as shown in Figure 1, the formation direction ratio vertical plane (gravity action direction) of an axial end face of dust folding and unfolding portion 5 (being equivalent to protecgulum 11 parts) rolls oblique about 40 °～45 ° to housing 10.That is, the bottom also than the top of the axial end face of dust folding and unfolding portion 5 by housing 10 sides.Thus, an axial end face of dust folding and unfolding portion 5 is benchmark with axial other end with vertical plane (gravity action direction), is the word shape of falling the Ha.Thus, the situation of hook is few when the user mentions dust folding and unfolding portion 5 upward, and the user can easily take off dust folding and unfolding portion 5 from main body of dust collector 1.And the user controls that recess 39 separates portion 4 upward with dust or oblique upper is mentioned after taking off dust folding and unfolding portion 5, can easily dust be separated portion 4 and take off from main body of dust collector 1.As shown in Figure 1, the formation direction ratio vertical plane (gravity action direction) of an axial end face (being equivalent to inlet tube 3 parts) of preferred dust separation portion 4 rolls tiltedly to urceolus 6.That is, preferred bottom is than close urceolus 6 sides in the top of the axial other end of dust separation portion 4.Thus, the user dust is separated portion 4 upward or oblique upper when mentioning the situation of hook few, the user can easily separate dust portion 4 and take off from main body of dust collector 1.In addition, owing to not only the user dust is separated the occasion that portion 4 takes off, make dust separation portion 4 and dust folding and unfolding portion 5 one, namely also from main body of dust collector 1 take off dust collect plant 2 itself the time, an axial end face of dust collect plant 2 is that benchmark is the word shape of falling the Ha with vertical plane (gravity action direction) also with axial other end, therefore the situation of hook is few when dust collect plant 2 is mentioned upward, and the user can easily take off dust collect plant 2 from main body of dust collector 1.

Insert hose coupling pipe 20 at main body air entry 21, can keep hose coupling pipe 20.End at main body air entry 21 possesses liner 22.Thus, can keep the airtight of hose coupling pipe 20 and inlet tube 3.Possess for the Caster support portion 23 of supporting Caster in the lower end, the place ahead of main body of dust collector 1 (downside of dust collect plant 2).Rear upside in main body of dust collector 1 possesses the upwardly extending air intake passage 27 in the front and back of main body of dust collector 1.The opening 27a that the extension of air intake passage 27 arranges direction one end is relative with filter 15.Near the opening 27a of an end of air intake passage 27, possesses after-filter 26.Thus, can suppress electric blower 28 and suck the dust that remains in outside the dust collect plant 2.The extension of air intake passage 27 arranges the direction other end and is closed, and the extension of air intake passage 27 arranges near the bottom of the direction other end, is that electric blower 28 sides are as the outlet 27b opening of air intake passage 27.Possess in the top of the opening 27a of an end of the air intake passage 27 of main body of dust collector 1 and filter 15 position contacting and to remove the dust arrester 24 that is attached to the dust on the filter 15.Dust arrester 24 possesses spiral helicine spring (elastomer) in the periphery of rotary body.Dust arrester 24 utilize motor or be located at cable reel 41 around pulling out of flexible cord 47 and rotate, pat the filter element of filter 15 by spiral helicine spring, shake falls to being attached to the dust on the filter 15.As mentioned above, because the ripple direction of filter 15 is short transverse, therefore the dust that is fallen by shake falls at the gravity action direction easily.The dust that falls from filter 15 shakes is deposited in the housing 10.Thus, can suppress the obstruction of filter 15, suppress the decline of the pressure loss of air, descend thereby can suppress attraction.

As shown in Figure 1, the rear downside in main body of dust collector 1 possesses the electric blower 28 that produces attraction.Electric blower 28 installs towards the vertical of top with the suction inlet 28a of electric blower 28.Electric blower 28 is the longest to the opposing face of the face of this suction inlet 28a from the face of suction inlet 28a.Therefore, install electric blower 28 by the mode of suction inlet 28a towards the top with electric blower 28 with vertical, can shorten the length of the main body of dust collector 1 from hose coupling pipe 20 to main body exhaust outlet 30.In main body of dust collector 1, be provided with air intake passage 27 on the top of electric blower 28, link the suction inlet 28a of electric blower 28 and the outlet 27b of air intake passage 27.In the present embodiment, in the occasion that electric blower 28 is arranged in the main body of dust collector 1, have suction inlet 28a with the upper surface on the top of electric blower 28, the mode that the sidepiece in the bottom of electric blower 28 has exhaust outlet 28b arranges.In main body of dust collector 1, possesses the exhaust passage 40 that is communicated with the exhaust outlet 28b of electric blower 28 in the downstream of electric blower 28 and than electric blower 28 forward sides.In addition, in main body of dust collector 1,40 the downstream and possess the filter 29 that is communicated with exhaust passage 40 than exhaust passage 40 forward sides in the exhaust passage.Exhaust passage 40 utilizes fixed mechanism such as screw to fix with filter 29.This is for by fixing exhaust passage 40 and filter 29, can keep the airtight of exhaust passage 40 and filter 29, can pass through filter 29 from whole exhaust of the outlet 28b discharge of electric blower 28.Filter 29 is spiral helicine filter element at cross sectional shape for forming bending in the tetragonal framework roughly.The ripple direction of preferred filter element is short transverse (gravity action direction).Filter 29 for example is highdensity ulpa filter (Ultra Low Penetration Air Filter).Ulpa filter is to be that the particle of 0.15 μ m has the particle capture rate more than 99,9995% with nominal air delivery with respect to particle diameter, and having the initial stage pressure loss is the air cleaner of the following performance of 245Pa, has the particle capture rate higher than the particle capture rate of HEPA filter.And, possess main body exhaust outlet 30 at the rear end face of main body of dust collector 1.

As shown in Figure 8, flexible cord 47 has plug 43 at front end.Obtain by plug 43 being inserted the socket that is arranged in room etc.During electric dust collector beyond using rechargeable dust catcher, when not inserting plug 43 in the sockets, electric blower 28 grades are moved.Therefore, the position that preferably can not hinder when using electric dust collector arranges cable reel 41.Below, the position that cable reel 41 is set is called cable reel chamber 42.Be provided with the occasion of cable reel chamber 42 with plug 43 or flexible cord 47 in the front portion of main body of dust collector 1 from the outstanding mode in the front portion of main body of dust collector 1, because plug 43 or flexible cord 47 stretch out in direction of advance, therefore be difficult to when cleaning, handle.With plug 43 or flexible cord 47 from the side surface part of main body of dust collector 1 or go up facial outstanding mode the side surface part of main body of dust collector 1 or on the facial occasion that is provided with cable reel chamber 42 also when cleaning, be difficult to handle.By from the outstanding rear portion of mode in main body of dust collector 1 of the rear end face of main body of dust collector 1 cable reel chamber 42 being set with plug 43 or flexible cord 47, can not hinder the conversion of direction of advance or direction, handle easily.In the present embodiment, electric blower 28 is made as in main body of dust collector 1 adjacent with cable reel chamber 42.In addition, electric blower 28 is located in main body of dust collector 1 than dust collect plant 2 by the rear portion with cable reel chamber 42.As Fig. 8 put down in writing, in the present embodiment, the length longitudinally of cable reel chamber 42 was longer than the length longitudinally of electric blower 28, than addition electric blower 28 short with the length longitudinally of exhaust passage 40.

Fig. 9 is the exploded perspective view of air intake passage, exhaust passage, housing, filter and the electric blower of present embodiment.Figure 10 is the stereogram of observing the air intake passage of present embodiment from the electric blower side.Figure 11 is the upward view of observing the air intake passage side of present embodiment from the elastomeric element side.As Fig. 1 and shown in Figure 9, the cross section of the above-below direction of electric blower 28 has the shape of circular.The external diameter on top of electric blower 28 that disposes air blast is bigger than the external diameter of the bottom of the electric blower 28 that disposes motor.As shown in Figure 9, the housing 45 that is used for folding and unfolding electric blower 28 is that the cross section of above-below direction is the circular shape, above opening, what be closed below is container-like, linking in the lower side of housing 45 has exhaust passage 40.Electric blower 28 inserts in the housing 45.The upside of electric blower 28 is supported on the back side of the bottom surface of air intake passage 27 by near the elastomeric element 101 the suction inlet 28a, and the downside of electric blower 28 is supported on the inboard of the bottom surface of housing 45 by antivibrating parts 113.28 of electric blowers are supported by upper surface and lower surface, and the side does not contact with housing 45.Thus, the vibration of electric blower 28 is difficult to be delivered to housing 45 or air intake passage 27.Elastomeric element 101 is toroidal, is made of the rubber elastomeric material.Elastomeric element 101 can not be toroidal, as long as have the shape (for example polygon-shaped) on every side that covers suction inlet 28a.Antivibrating parts 113 has cylindrical shape or drum, is made of the rubber elastomeric material.As long as antivibrating parts 113 has support function, therefore can be constituted by spring.The lower surface of electric blower 28 is owing to bottom surface and an antivibrating parts 113 by housing 45 support, so the weight of electric blower 28 (hundreds of g) is applied on the antivibrating parts 113.Antivibrating parts 113 is compressed on above-below direction, and strain.As shown in Figure 9, the peristome of the upper surface of housing 45 is fixed and binding air intake passage 27 and 5 positions with screw fixture 107 by airtight liner 103.By bottom surface and the housing 45 of air intake passage 27, form the space of built-in electric blower 28.The bottom surface of air intake passage 27 can be considered the part of the housing 45 of folding and unfolding electric blower 28.Utilize screw fixture 107, because the upper surface of electric blower 28 pressed by air intake passage 27, so the weight of electric blower 28 is applied on the antivibrating parts 113, thereby applies the power that is pressed.And elastomeric element 101 is also compressed on above-below direction, and strain.

As shown in Figure 9, the airtight liner 103 between air intake passage 27 and the housing 45 is roughly circular shape, has the size suitable with the edge part 110 of the peristome on the top of housing 45.Airtight liner 103 is made of the rubber elastomeric material.Airtight liner 103 embeds the edge part 110 of housing 45, disposes with air intake passage 27 butts.Be configured in circular passage airtight the 27d of airtight liner 103 by being located at air intake passage 27 between air intake passage 27 and the housing 45 around screw fixture 107, equally bear from airtight 27d of the passage of air intake passage 27 pressure downwards and from edge part 110 pressure upward of housing 45.The airtight liner 103 that is under pressure is out of shape between air intake passage 27 and housing 45.

Figure 13 represents the cross sectional shape of airtight liner 103.Figure 13 (A) is the figure when embedding airtight liner 103 between air intake passage 27 and the housing 45, the cutaway view of the monomer of the airtight liner 103 of Figure 13 (B) expression.Airtight liner 103 forms circular inner part and circular exterior part by the linking part on its top.The top of inner part is a little upwards side-prominent.The top of parts forms the exhaust lip 103a that extends to the top of inner part outside.Between inner part and exterior part and linking part, sandwich the edge part 110 of housing 45.Upper surface at edge part 110 forms the mountain B110a of portion, enters the linking part of airtight liner 103.Especially utilize the B110a of mountain portion, the edge part 110 of airtight liner 103a and housing 45 connects airtight.In addition, by the top butt of exhaust lip 103a and inner part, airtight 27b driving fit of the passage of airtight liner 103, air intake passage 27.In addition, the exhaust lip 103a of airtight liner 103 is for when high from the pressure at expulsion 116 of the direction of arrow that is assembled in the electric blower 28 in the housing 45, the power that exhaust lip 103a will expand is laterally moved, the interface pressure of airtight 27b of exhaust lip 103a and passage rises, and can more obtain the airtight structure of exhaust.In the present embodiment, make airtight liner 103 be the elastomeric element that deflection is big and hardness is low, but requiring the occasion of withstand voltage properties, can use the higher elastomeric element of hardness.In addition, fixedly air intake passage 27 is out of shape in order to make airtight liner 103 equably with the position of housing 45, is five places, as long as but airtight liner 103 is out of shape equably, then can not be five places, perhaps also can be the fixing means (for example clip or be pressed into) beyond the screw.

Flowing of the air that passed through dust collect plant 2 is described.The air-flow that has passed through dust collect plant 2 utilizes air intake passage 27 and deflection, flows in the electric blower 28 from suction inlet 28a.The air-flow that flows into utilizes impeller to boost in electric blower 28, is pushed out into the space that is formed by air intake passage 27 and housing 45 from outlet 28b.40 the opening with housing 45 opposition sides is provided with filter 29 in the exhaust passage.Be pushed out into air in the space that is formed by air intake passage 27 and housing 45 all by filter 29, pass through in the main body of dust collector 1 being diffused in the atmosphere.The occasion that the filter 15 that the air-flow that has passed through dust collect plant 2 has at dust collect plant 2 does not filter fully or have the possibility that fine rubbish is sneaked into when dust collect plant 2 is installed, as long as present embodiment, have a filter 29 that the exhaust of making is passed through fully in the downstream of electric blower 28, then owing to can filter fine rubbish, become the air of cleaning, the air in the room of therefore can not making dirty.In addition, therefore the carbon dust that produces from electric blower 28 can access the air of cleaning all by filter 29 and be filtered.

As shown in figure 10, the elastomeric element 101 on support electric blower 28 tops is fixed on the air intake passage 27 by the fixed cover 102 of toroidal.The external diameter of fixed cover 102 is bigger than the external diameter of elastomeric element 101, and the internal diameter of fixed cover 102 is bigger than the internal diameter of elastomeric element 101, but the internal diameter of fixed cover 102 is littler than the external diameter of elastomeric element 101.Thus, utilize interior all sides of fixed cover 102 to cover the outer circumferential side of elastomeric element 101, and fix.The external diameter of fixed cover 102 is littler than the internal diameter of airtight 27d of passage, and fixed cover 102 folding and unfoldings are in the inboard of airtight 27d of passage.And, as shown in figure 10, around the back side of the outlet 27b of air intake passage 27, form circular positioning rib 108.Positioning rib 108 is made of inside and outside two ribs.Dispose elastomeric element 101 with groove 101c with the mode that the positioning rib 108 of air intake passage 27 contacts with the fixing of elastomeric element 101, utilize six screws to be attached on the air intake passage 27 at fixed cover 102.As shown in figure 11, be provided with location indentations 105 at a place of interior all sides of airtight 27d of the passage of air intake passage 27, be used for the location with the positioning convex portion 102a of fixed cover 102.Thus, the location becomes easily, can shorten built-up time.

The wheel hub 104 of honouring the screw that fixed cover 102 fixes is outstanding from air intake passage 207.This be because, because the back side of the wall 111 that the wheel hub 104 of air intake passage 207 is given prominence to becomes the air channels with air-flow 28 guiding from dust collect plant 2 to electric blower, therefore for fixed cover 102 is fixed on the air intake passage 27, needs to increase the thickness of wall 111 or in the air channel projection is set.By utilizing fixedly fixed cover 102 of sunk screw, can not increase the thickness of wall 111, thrust be not fixed on fixed cover 102 on the air intake passage 27 on the air channel highlightedly.In addition, can prevent the butt of screw and electric blower 28.

Figure 12 is the stereogram of the elastomeric element of present embodiment.Elastomeric element 101 forms the vibrationproof projection 101e that plays anti-vibration functions and first airtight the 101a of antivibrating parts that plays airtight maintenance function at circular matrix.In addition, all sides form second airtight 101f of antivibrating parts in matrix.Preferred substrate, vibrationproof projection 101e, first airtight 101a of antivibrating parts, second airtight 101f of antivibrating parts are made of same material.Vibrationproof projection 101e arranges eight places at the circular ledge of the interior all sides that are formed on first airtight 101a of antivibrating parts.The front end of vibrationproof projection 101e and shell surface 28c butt.This vibrationproof projection 101e is because projection is independent of one another, therefore when utilizing screw to be attached at air intake passage 27 on the housing 45, the front end of vibrationproof projection 101e enters projection each other with the flattening amount and utilizes fixedly electric blower 28 of elastomeric element 101, can suppress to push the vibration of direction.Even also can between a plurality of vibrationproof projection 101e, leave the gap under the state that vibrationproof projection 101e is crushed.In the present embodiment, 101e is divided into eight with the vibrationproof projection, even the quantity difference of vibrationproof projection 101e also can be connected to ring-type.First airtight 101a of antivibrating parts is formed on the outer circumferential side of vibrationproof projection 101e.First airtight 101a of antivibrating parts is made of circular thin plate, but with respect to root, front end enlarges to outer circumferential side.The front end of first airtight 101a of antivibrating parts and shell surface 28c butt.Because first airtight 101a of antivibrating parts form by thin plate, also low than vibrationproof projection 101e rigidity even therefore to constitute with vibrationproof projection 101e identical materials (for example rubber etc.), strain easily.Preferred disposition is that circular vibrationproof projection 101e and circular first airtight 101a of antivibrating parts are the position relation on the concentric circles.All sides in replacement is configured in vibrationproof projection 101e, first airtight 101a is configured in outer circumferential side with antivibrating parts, all sides in also first airtight 101a of antivibrating parts can being configured in, 101e is configured in outer circumferential side with the vibrationproof projection.Second airtight 101f of antivibrating parts is located at the interior all sides of circular matrix of elastomeric element 101, and the internal diameter of second airtight 101f of antivibrating parts is littler than the external diameter of the circular 28d of eyeball portion at the edge that forms suction inlet 28a.Therefore second airtight 101f of antivibrating parts is made of circular thin plate, as one man curls with the shape of the circular 28d of eyeball portion of butt, and the part of curling is compressed between the matrix of the circular 28d of eyeball portion and elastomeric element 101.Thus, can suppress the vibration of radiation direction.

Figure 15 represents to observe from the air intake passage side stereogram of the fixed cover of present embodiment.As shown in figure 15, fixed cover 102 has toroidal.The interior perimembranous of fixed cover 102 forms airtight circular 102b.Periphery at airtight 102b is formed with the outstanding rib 102d cylindraceous that is.In addition, the periphery at rib 102d along the circumferential direction forms the installing hole 102c that six screws can insert.Place at the most peripheral of fixed cover 102 is formed with to the side-prominent positioning convex portion 102a of periphery.Elastomeric element 101 is fixed on occasion on the air intake passage 27 utilizing embed to be shaped to wait, can have fixed cover 102.

Figure 14 (A) is the cutaway view of a side of air intake passage, fixed cover and the elastomeric element of present embodiment, the cutaway view of a side of the elastomeric element of Figure 14 (B) expression present embodiment.Shown in Figure 14 (B), the upper surface of the matrix of elastomeric element 101 is recessed, forms the circular fixing groove 101c that uses.Most peripheral at matrix forms airtight 101b cylindraceous, and the lower ends downward of airtight 101b is side-prominent, forms protuberance 101d.If there is not fixed cover 102, then can there be protuberance 101d.In the lower surface of matrix with fixing with the corresponding part of groove 101c, and with fixing side-prominent with the inboard in the corresponding part of groove 101c, form vibrationproof projection 101e in this outstanding part downwards.The projected direction of vibrationproof projection 101e is above-below direction, and this is elastomeric element 101 is compressed power from air intake passage 27 and electric blower 28 direction.In addition, side-prominent part has toroidal downwards.In the lower surface of matrix with fixing with the corresponding part of groove 101c, and forming first airtight 101a of antivibrating parts with fixing with the outside in the corresponding part of groove 101c.First airtight 101a of antivibrating parts is made of the thin plate of counting about mm, has drum.The thickness of the radial direction of the thickness ratio vibrationproof projection 101e of first airtight 101a of antivibrating parts is little.Above-below direction central authorities than first airtight 101a of antivibrating parts are formed on the above-below direction by upside (root side), than above-below direction central authorities on the lower side (front) open roughly about 60 degree when expanding laterally when (axially) is benchmark with upper and lower, when being benchmark with horizontal direction (radial direction), expand out laterally about about 30 degree and form the below of the front end arrival protuberance 101d of first airtight 101a of antivibrating parts.And, shown in Figure 14 (B), when the position of the front end of first airtight 101a of antivibrating parts is benchmark when the matrix with elastomeric element 101, more outstanding than the position of the front end of vibrationproof projection 101e.That is, first airtight 101a of antivibrating parts is from crooked laterally midway.But first airtight 101a of antivibrating parts can enlarge laterally from butt.The position of the above-below direction of the sweep of first airtight 101a of antivibrating parts roughly is equivalent to the position of above-below direction of the butt of vibrationproof projection 101e.Form with thin plate with respect to the root side of the sweep of first airtight 101a of the antivibrating parts part as first airtight 101a of antivibrating parts, the root of vibrationproof projection 101e is made of the following side-prominent part to matrix.

Shown in Figure 14 (A), elastomeric element 101 is configured in the outside of the circular 28d of eyeball portion at the edge that forms suction inlet 28a.Mode with the outer peripheral face butt of the inner peripheral surface of elastomeric element 101 and the 28d of eyeball portion disposes elastomeric element 101.Thus, the position deviation of top on radial direction that suppresses electric blower 28.The upper surface butt of the lower surface of protuberance 101d by elastomeric element 101 and airtight 102b of fixed cover 102, the lower surface butt of the upper surface of airtight 101b of elastomeric element 101 and the wall 111 of air intake passage 27, elastomeric element 101 utilize fixed cover 102 to be fixed on the wall 111 of air intake passage 27.Airtight 101b is under pressure from airtight 102b and wall 111 when utilizing screw to link fixed cover 102.Airtight 101b 112 internal strains in the gap that are under pressure produce and the corresponding reaction force of distortion with respect to airtight 102b and wall 111.In addition, be located at the circular 27c of mountain portion of the position corresponding with airtight 101b of wall 111 of air intake passage 27 and airtight 101b butt and can keep the airtight of air intake passage 27 and elastomeric element 101.On the other hand, in order to keep the airtight of elastomeric element 101 and electric blower 28, be provided with first airtight 101a of antivibrating parts and second airtight 101f of antivibrating parts.Owing to first airtight 101a of antivibrating parts by thin plate and enlarge laterally and constitute, therefore when with the shell surface 28c butt of electric blower 28, the front end strain of first airtight 101a of antivibrating parts is also crooked, with respect to the power from the suction pressure of the pressure at expulsion of electric blower 28 and electric blower 28, pressing on shell surface 28c under the operating condition of electric blower 28, guaranteeing airtight.The shell surface 28c of first airtight 101a contact of antivibrating parts forms a linearity with the shell surface that vibrationproof projection 101e contacts, but has groove betwixt.The front end of first airtight 101a of antivibrating parts is easily to apply with respect to suction air pressure that direction (direction of the inboard of radial direction) is out of shape and the mode of following becomes lamellar.The front end of first airtight 101a of antivibrating parts expands laterally to be opened roughly 30 degree and constitutes, and when assembling, the front end of first airtight 101a of antivibrating parts is crushed roughly 30 degree and assembles.Thus, first airtight 101a of antivibrating parts self always is pressed against shell surface 28c and goes up and have an effect that keeps airtight.In addition, under the state before assembling (A-stage), constitute owing to the front end of first airtight 101a of antivibrating parts expands out laterally, so the operating personnel can not worry that when assembling the front end of first airtight 101a of antivibrating parts curls, and can stably assemble.

Shown in Figure 14 (B), second airtight 101f of antivibrating parts is located at the interior all sides of circular matrix of elastomeric element 101.Second airtight 101f of antivibrating parts is made of the little circular thin plate of external diameter than the circular 28d of eyeball portion at the edge of the suction inlet 28a that forms electric blower 28, therefore when assembling, second airtight 101f of antivibrating parts and the circular 28d of eyeball portion butt, the shape of second airtight 101f of antivibrating parts and the circular 28d of eyeball portion as one man produces curling.In addition, at this moment, second airtight 101f of antivibrating parts preferably arranges with the mode that becomes the position butt of line part with the cross sectional shape of the circular 28d of eyeball portion.Second airtight 101f of antivibrating parts can not be circular thin plate, also can be that the cross section is leg-of-mutton shape, and the shape of front end and circular eyeball portion butt.In addition, shown in Figure 14 (A), by first airtight 101a of antivibrating parts and shell surface 28c, second airtight 101f of antivibrating parts and the circular 28d of eyeball portion driving fit respectively, formation enclosure space 118 between elastomeric element 101 and electric blower 28.By apply the pressure of compression enclosure space 118 from the outside, air in the enclosure space 118 goes out from first airtight 101a side of antivibrating parts and second airtight 101f effluent of antivibrating parts respectively, when the pressure that discharges from the outside, enclosure space 118 with respect to around be negative pressure.Reaction force when utilizing second airtight 101f of antivibrating parts to curl, elastomeric element 101 be pulled to the roughly the same axle of the circular 28d of eyeball portion on, in addition, by as sucker, being adsorbed on the electric blower 28 with elastomeric element 101, needn't worry that elastomeric element 101 causes position deviation with respect to electric blower 28 from regular position, has improved assembleability.

Shown in Figure 14 (A), as the matrix of the root portion of vibrationproof projection 101e to residual having living space (the fixing groove 101c that uses) between the positioning rib 108 of the ledge of downside and air intake passage 27.Thus, when elastomeric element 101 is flattened with electric blower 28 by air intake passage 27, not only vibrationproof projection 101e strain, as the matrix of the root portion of vibrationproof projection 101e to the ledge of downside also strain.Since after the strain as the matrix of the root portion of vibrationproof projection 101e to also residual having living space (fix and use groove 101c) between the positioning rib 108 of the ledge of downside and air intake passage 27, therefore rigidity is not high, and the vibration of electric blower 28 is difficult to be delivered to air intake passage 27.On the other hand, shown in Figure 14 (A), residual having living space (the fixing groove 101c that uses) not between the body portion of the root portion of first airtight 101a of antivibrating parts and positioning rib 108.Owing to being opened by thin plate and expansion laterally, first airtight 101a of script antivibrating parts constitute, therefore rigidity is lower than vibrationproof projection 101e, the vibration of electric blower 28 is difficult to be delivered to air intake passage 27, therefore do not need to make the body portion distortion of the root portion that is positioned at first airtight 101a of antivibrating parts, do not need to vacate the gap.And, in the present embodiment, owing to constituted and the vibration of electric blower 28, airtight by different shapes, therefore can access the shape that is suitable for vibrationproof most and be suitable for airtight shape most.In the present embodiment, elastomeric element 101 uses the synthetic rubber of about 40 degree of hardness, but can change hardness according to the influence of vibration.At this moment, first airtight 101a of antivibrating parts is because therefore lamellar for the influence that is difficult to be subjected to hardness can keep airtight.

The elastomeric element 101 that is fixed on the air intake passage 27 makes first airtight 101a of antivibrating parts contact with the shell surface 28c of electric blower 28.When utilizing screw fixture 107 fixedly air intake passage 27 is with housing 45, first airtight 101a of antivibrating parts pressed by electric blower 28 and the wall 111 of air intake passage 27, and first airtight 101a of antivibrating parts and protuberance 101d are in the gap 112 or its peripheral distortion.This distortion becomes reaction force, and interface pressure is risen.Therefore, maintenance first airtight 101a of antivibrating parts and shell surface 28c's is airtight.Electric blower 28 sucks air-flow from dust collect plant 2 by air intake passage 27, utilizes impeller to boost, and releases in the housing 45 from exhaust outlet 28b.Therefore, the space, suction side 115 of elastomeric element 101 is negative pressure, and exhaust side space 114 is malleation.Because elastomeric element 101 utilizes first airtight 101a of antivibrating parts and airtight 101b and second airtight 101f of antivibrating parts to keep the airtight of space, suction side 115 and exhaust side space 114, therefore can prevent that air-flow from flowing to space, suction side 115 from exhaust side space 114, prevent the decline of intake performance and the circulation of exhaust.Elastomeric element 101 supports electric blower 28 and has gap 112 around, flexibly keeps electric blower 28.Therefore, elastomeric element 101 can suppress from electric blower 28 to air intake passage 27 transfer of vibration.In the present embodiment, elastomeric element 101 uses synthetic rubber, but also can use the lower rubber of hardness etc., reduces the vibration transmission capacity to air intake passage 27.

Electric blower 28 is bearing in downside on the housing 45 by antivibrating parts 113.Antivibrating parts 113 prevents that not only vibration is delivered to housing 45, also prevents electric blower 28 rotations.In the present embodiment, use synthetic rubber, but also can use the lower rubber of hardness, reduce the vibration transmission capacity to housing 45.

Then, the noise to electric dust collector describes.Electric dust collector produces the noise of three kinds of representatives owing to built-in electric blower 28.

First kind be disorder with air-flow be cause, at the turbulence noise that produces than wide band.In the main body of dust collector 1 of present embodiment, the revolution of built-in electric blower 28 comparatively fast is that air quantity also mostly was 2m more than per minute 36000 changeed when zero load ³/ min.Because electric blower 28 inside or main body of dust collector 1 inner flow passage are narrow, therefore the air-flow that is produced by electric blower 28 is that local high speed airflow produces turbulence noise.

Second kind is the blade sound of frequency with long-pending integral multiple of the quantity of blade of impeller and revolution.The impeller of electric blower 28 produces pressure differential, drive fluid by the surface at blade.Therefore, as present embodiment, have in the electric blower of static blade in the downstream of impeller, produce pressure differential on the border of static blade and impeller, therefore this pressure differential change is easy to generate the blade sound of quantity with the frequency of the integral multiple that amasss of revolution of the blade with impeller.

The third is the whirling vibration sound of sound with frequency of revolution.Electric blower 28 is to utilize electromagnetic force between rotor and stator to make the impeller rotation, and utilizes the motion of blade to produce pressure differential in the front and back of impeller and produce the rotating machinery of attraction.Rotating machinery exists eccentric a little uneven around rotating shaft, produce the exciting force of swing circle at bearing.Electric blower has eccentric uneven at rotor, impeller, by they rotations, produce to the exciting force in the cycle of bearing, and these are whirling vibration.Be delivered to the whirling vibration part of bearing and propagate as vibration from surface, other parts from the support electric blower of electric blower, main body of dust collector is carried out exciting, emit in the atmosphere as sound, these are the whirling vibration sound.

Present embodiment can improve the dust catcher noise by the noise of reduction by the discomfort of the low frequency of whirling vibration sound generation.In order to reduce the whirling vibration sound, consider to reduce eccentric uneven as the electric blower in the source of generation, thereby suppress the method for whirling vibration with in the method that reduces whirling vibration from the propagation path of electric blower.Utilize the latter to improve in the present embodiment.

As present embodiment, possess the occasion of the such electric dust collector of filter 29 in the downstream of electric blower 28, when rubbish during in large quantities by filter 29, there is the mesh blocking problem.In this occasion, in the such electric dust collector of present embodiment, the above normal pressure of 20KPa is applied on the exhaust side space 114.Therefore, need airtight to press tightly for the structure of withstanding this pressure.Yet in order to reduce the whirling vibration sound, when the transmission of considering whirling vibration suppressed, when pressing airtight tightly, rigidity rose, so the transfer of vibration quantitative change is big.Therefore, in the present embodiment, constitute the face face airtight with maintenance that suppresses vibrationproof respectively.Electric blower 28 is supported on upside on the air intake passage 27 by elastomeric element 101, by antivibrating parts 113 downside is supported on the housing 45.The whirling vibration of electric blower 28 is propagated in the direction vertical with rotating shaft and radiation direction from elastomeric element 101 and antivibrating parts 113.Therefore, need to reduce the vertical direction of support electric blower 28 and the rigidity of radiation direction.

In the present embodiment, flexibly support electric blower 28 by utilizing elastomeric element 101, reduce the propagation of the vibration of radiation direction.In addition, by gap 112 is set, vibrationproof projection 101e also flexibly supports in the direction vertical with the rotating shaft of electric blower 28, reduces the propagation of vibration.Therefore, the whirling vibration that is delivered to main body diminishes, and can reduce the whirling vibration sound.

In addition, first airtight the 101a of antivibrating parts that arranges with difformity is the curling structure of front end when with the shell surface 28c butt of electric blower 28, with respect to the power from the suction pressure 117 of the pressure at expulsion 116 of electric blower 28 and electric blower 28, when electric blower 28 rotations, press on shell surface 28c, guarantee airtight.In addition, the front end of first airtight 101a of antivibrating parts is lamellar for the mode of being out of shape with the direction that applies with respect to suction air pressure easily and follow.In addition, the front end of first airtight 101a of antivibrating parts constitutes to expand laterally opens roughly 30 degree, and when assembling, the front end of first airtight 101a of antivibrating parts more flattens and assembles than 30 degree.Thus, first airtight 101a of antivibrating parts self always presses on shell surface 28c and plays and guarantee airtight effect.In addition, under the state before assembling (A-stage), because constituting to expand laterally, opens the front end of first airtight 101a of antivibrating parts, therefore when the operating personnel assembles, the front end that can not worry first airtight 101a of antivibrating parts curls, and can stably assemble.In addition, second airtight 101f of antivibrating parts be internal diameter than the circular little laminal circular projection of the 28d of eyeball portion of electric blower 28, be located at the inboard of the circular matrix of elastomeric element 101.Second airtight 101f of antivibrating parts assembling the time follow electric blower 28 the circular 28d of eyeball portion shape and be out of shape, can keep airtight.Electric blower 28 utilizes first airtight 101a of antivibrating parts to keep airtight when the thrust direction displacement, during at the radiation direction top offset, can utilize second airtight maintenance of antivibrating parts airtight at electric blower 28.Therefore, prevent from from the exhaust side space 114 of electric blower 28 preventing from reducing intake performance to the adverse current in space, suction side 115.

The stereogram of the dust collect plant of Fig. 2 (A) expression present embodiment, the sectional elevation of the dust collect plant of Fig. 2 (B) expression present embodiment.The user mentions dust collect plant 2 upward by holding handle 16, dust collect plant 2 can be taken off from main body of dust collector 1.But, control of dust can be separated portion 4 and stay on the main body of dust collector 1, only dust folding and unfolding portion 5 is taken off from main body of dust collector 1.Shown in Fig. 2 (A), roughly be toroidal from the outer shape in the cross section of the dust separation portion 4 of end on observation.The outer shape in the cross section of dust folding and unfolding portion 5 is circular shapes in the part of protecgulum 11, but roughly is later on the quadrangle shape in protecgulum 11 parts, even the part of filter 15 also roughly is the quadrangle shape.Shown in Fig. 2 (B), the opening direction of the opening direction of an axial end of housing 10 and the axial other end of housing 10 is out-of-line, differs about 45 °～50 °.That is, dust folding and unfolding portion 5 axial is than the forward slightly side in centre and bending.As mentioned above, an axial end face (part of inlet tube 3) of dust collect plant 2 is a little towards the below (gravity action direction), the axial other end of dust collect plant 2 (part of filter 15) is a little towards the below (gravity action direction) also, an axial end face of dust collect plant 2 is that benchmark is the word shape of falling the Ha with axial other end with vertical plane (gravity action direction), therefore can hook when dust collect plant 2 is mentioned upward, the user can easily take off dust collect plant 2 from main body of dust collector 1.

The inner core of Fig. 3 (A) expression present embodiment and the stereogram of urceolus, the stereogram of the dorsal part of the inner core of Fig. 3 (B) expression present embodiment.One end face of urceolus 6 divides outer closure except the forming portion of inlet tube 3, the other end opening of urceolus 6.Inner core 7 has circular epitaxy part 34 at an end of cylindrical portions may.Shown in Fig. 3 (A), by inserting in the urceolus 6 from the cylindrical portions may of inner core 7 vertically, the outer circumference end butt of the outer circumference end of the other end of urceolus 6 and epitaxy part 34 forms inner core 7 in urceolus 6.Shown in Fig. 3 (A), the opening direction of inlet tube 3 is relative with the opening of recess 8.The opening direction to the peripheral end of inner core 7 of recess 8 is roughly downward, and the opening direction of the circumferencial direction of guiding tube 38 is around counterclockwise.In addition, the opening direction of the circumferencial direction of guiding tube 38 can be clockwise.And, possess the hole that connects in the axial direction, the i.e. upper opening of epitaxy part 34 on the top of epitaxy part 34.The left wall of opening is than right wall height.That is, the wall (left wall) of the opening on the top of the epitaxy part 34 relative with the opening direction of the circumferencial direction of guiding tube 38 is than another wall (right wall) height.And the surface of epitaxy part 34 is helical form, has lead the swimmingly function of runner of opening on top of epitaxy part 34 of air.Shown in Fig. 3 (B), the upside in inner core 7 roughly semi-circular portions possess to the inboard recessed of inner core 7 and the sealing recess 39, downside roughly semi-circular portions to inner core 7 inner openings.Under dust was not deposited in state in the control of dust basket 12, the occasion that the flow of the air in the flow-rate ratio inner core 7 of the air outside inner core 7 is many can make the aperture area in the open area ratio inner core 7 on top of epitaxy part 34 big.Compare with the opening in inner core 7, can increase the zone of recess 39, also can compare with recess 39, increase the zone of the opening in the inner core 7.And the user can insert recess 39 with finger, thereby easily controls dust separation portion 4 or inner core 7.

In the occasion that is formed the cylindrical portion of inner core 7 by the metal material with antibacterial effect, at first, at a plurality of through holes 33 about etching and processing diameter 0.1mm～0.4mm on the sheet metal, afterwards, engage two ends and cylindrical shape.Through hole 33 can be punching processing.As the metal material with antibacterial effect, for example have stainless steel, silver, copper etc.Be not limited to stainless steel, silver, copper, so long as the alloy that has separated out on that contain silver or copper or silver or copper surface gets final product.The thickness of sheet metal is below the 1mm, in order to improve processability, preferably about 0.1mm～0.5mm.In the occasion of the thin thickness of sheet metal, in order to improve intensity or to improve out of roundness, preferably utilize the axial two ends of the sheet metal of the good resin stationary cylinder shape of formability.Specifically, at the mould of an end of the circular shape that forms the inner core 7 with recess 8 or guiding tube 38 and have the mould assembling sheet metal cylindraceous of mould of the other end of the inner core 7 of circular epitaxy part 34, afterwards, flow into mould by making resin, be shaped thereby embed.Utilizing the occasion that embeds shaping, sheet metal can not engage two ends and forms drum.Like this, can utilize resin to constitute to have recess 8 or guiding tube 38 inner core 7 the circular shape an end and have cylindrical portions may the other end, only constituted inner core 7 by metal material of the inner core 7 of circular epitaxy part 34.Be shaped by embedding, manufacture process is oversimplified.

The stereogram of state of protecgulum of the dust folding and unfolding portion of present embodiment is opened in Fig. 4 (A) expression, and the stereogram of state of rear portion filter of the dust folding and unfolding portion of present embodiment has been opened in Fig. 4 (B) expression.Shown in Fig. 4 (A), when protecgulum 11 is fulcrum when rotating downwards and opening with axle 31, control of dust basket 12 is that fulcrum rotates downwards and outstanding with axle 14 also.At this moment, control of dust basket 12 is that fulcrum is being divided into two up and down with axle 13.The opening of the control of dust basket 12 of the aperture efficiency folding and unfolding of the control of dust basket 12 when outstanding from dust folding and unfolding portion 5 in dust folding and unfolding portion 5 time is wide.Thus, can easily shake off to be bonded at the dust of the inner surface of control of dust basket 12.In addition, when the user installs thin sand paper along the inner surface of control of dust basket 12, as long as the end that utilizes the outer circumference end of the framework of peristome of control of dust basket 12 and protecgulum 11 to clamp thin sand paper just can suppress thin sand paper and depart from or come off.Shown in Fig. 4 (B), filter 15 is that fulcrum rotates downwards and opens with axle 32 also.Thus, the user can easily discharge the dust that is deposited in control of dust basket 12 outsides in housing 10.In addition, also can easily remove the dust of housing 10 sides that are attached to filter 15.

Fig. 5 (A) is the front view of observing from the dust folding and unfolding portion outside of the protecgulum of the dust folding and unfolding portion of present embodiment, and Fig. 5 (B) is from the inboard front view of observing of the dust folding and unfolding portion of the protecgulum of the dust folding and unfolding portion of present embodiment.In addition, the oblique line part among the figure is not the cross section, but the surface in front of the expression.Possess in the lower end of protecgulum 11 rotation be supported on freely on the housing 10 the axle 31.Protecgulum is the circular shape.The roughly circular portion in the outside of the oblique line part shown in Fig. 5 (A) can separate the outer circumference end butt of the axial other end of portion 4 with dust.The roughly circular portion of the inboard of oblique line shown in Fig. 5 (A) part can separate the outer circumference end butt of axial other end of the inner core 7 of portion 4 with dust.The upside of protecgulum 11 namely with axle 31 opposition sides, at the roughly circular portion in the outside of oblique line part and the inboard roughly opening of side runner 35 outside the formation between the circular portion.The aperture position of the table side of outer side runner 35 (dust folding and unfolding portion 5 outsides) can be left and right sides or the downside of protecgulum 11, but the aperture position of the dorsal part of side runner 35 outside making (dust folding and unfolding portion 5 inboards) is the occasion of the upside of protecgulum 11, reduce the pressure loss of air for the length that shortens outer side runner 35, the aperture position of the table side of preferred outer side runner 35 also is the upside of protecgulum 11.On the other hand, the opening of side runner 36 in the inboard of inner core 7 forms.In the front view of Fig. 5 (A), the aperture area of the outer side runner 35 of the open area ratio of interior side runner 36 is big, but since the upside in the inner core 7 roughly semi-circular portions be formed with recess 39, so many occasions of the flow of the air in the flow-rate ratio inner core 7 of the air outside making inner core 7, as the flow area of essence, the aperture area of the outer side runner 35 of the open area ratio of interior side runner 36 is little.In addition, the part that roughly is not formed with the opening of outer side runner 35 between circular portion of the roughly circular portion in the outside of oblique line part and inboard is closed.

A part of butt of the outer circumference end of the outer circumference end of the roughly circular portion in the outside of the oblique line part shown in Fig. 5 (B) and an axial end face of housing 10 and the opening of control of dust cage 12.Shown in Fig. 5 (B), the opening of side runner 35 outside the above-below direction center line than protecgulum 11 forms by upside.Thus, when electric dust collector stops, can preventing from being deposited in the dust adverse current of control of dust basket 12 to outer side runner 35 and dust separation portion 4.But, the opening of side runner 35 outside the central portion of the above-below direction center line that comprises protecgulum 11 forms.In addition, be preferably formed the check-valves (not shown) that covers outer side runner 35.Thus, and, when electric dust collector stops, can preventing from being deposited in the dust adverse current of control of dust basket 12 to outer side runner 35 and dust separation portion 4.On the other hand, near the lower end of protecgulum 11, form in the opening of side runner 36.But the aperture position of interior side runner 36 can be downside with respect to the aperture position of outer side runner 35, also can be left and right sides or upside.In addition, the lower end butt of the oblique line of the open upper side of interior side runner 36 part and the outer circumference end of the opening of control of dust basket 12.And shown in Fig. 5 (B), at the dorsal part (inboard of dust folding and unfolding portion 5) of protecgulum 11, the aperture area of side runner 36 is big in the open area ratio of outer side runner 35.And with shown in Fig. 5 (B), the aperture area of the other end of outer side runner 35 (dorsal part) (Fig. 5 (B)) is bigger than the aperture area (Fig. 5 (A)) of an end (table side) of outer side runner 35 as Fig. 5 (A).That is, outer side runner 35 from one end to the other side enlarges.On the other hand, with shown in Fig. 5 (B), the aperture area of the other end of interior side runner 36 (dorsal part) (Fig. 5 (B)) is littler than the aperture area (Fig. 5 (A)) of an end (table side) of interior side runner 36 as Fig. 5 (A).That is, interior side runner 36 from one end to the other side narrows down.

The front view of observing from dust separation portion side when Fig. 6 represents to remove the protecgulum of dust folding and unfolding portion of present embodiment.In addition, identical with Fig. 5, the oblique line part among the figure is not the cross section, but the surface in front of the expression.The oblique line part of circular shape and the outer circumference end butt of protecgulum 11.As shown in Figure 6, a part of butt of the outer circumference end of the opening of the outer circumference end of the opening of an axial end face of housing 10 and control of dust basket 12.In addition, as shown in Figure 6, being occupied by the opening of control of dust basket 12 more than 80% of the opening of an axial end face of housing 10.And the zone beyond the opening of the control of dust basket 12 of the opening of housing 10 (remaining below about 20%) relatively is communicated with interior side runner 36 with the opening of interior side runner 36.

Fig. 7 is the skeleton diagram of the electric dust collector of present embodiment.Electric dust collector also possesses suction fitting 50 with suction inlet, an end is communicated with suction fitting 50 and retractile junction block (prolonging pipe) 51, one end and the other end of junction block 51 are communicated with and have operation pipe 52, an end of handle 53 that the user holds or action button/switch and operate and manage that 52 the other end is communicated with and at the flexible pipe 54 of other end formation hose coupling pipe 20 except main body of dust collector 1.Main body air entry 21 insertion hose coupling pipes 20 at main body of dust collector 1 also can keep.In addition, possesses wheel 55 in the two sides of main body of dust collector 1.

And when connecting the power supply of electric dust collector by the operation of being undertaken by the user to action button/switch, electric blower 28 moves and produces attraction.Pass through according to the order of junction block 51, operation pipe 52, flexible pipe 54, hose coupling pipe 20 from the suction inlet inhaled air of suction fitting 50, and flow into main body of dust collector 1.

In the present embodiment, electric blower 28 vertical structures of putting have been described, but also can be applied to the tilting or horizontal occasion of electric blower 28.In the present embodiment, dust collect plant 2 has utilized centrifugation, but also can be used for utilizing filter type such as wrapper.

Claims (3)

1. electric dust collector, it possess the shell with the outstanding shape of suction inlet electric blower, the above-mentioned electric blower of folding and unfolding housing and be configured in above-mentioned electric blower suction inlet around and the airtight member between the above-mentioned housing, this electric dust collector is characterised in that

Above-mentioned airtight member realizes that with different shapes the vibration that suppresses vibration prevents portion and the suction side that obtains above-mentioned electric blower and the airtight airtight portion of exhaust side, one side of above-mentioned airtight portion is provided with the annulus that front end enlarges towards above-mentioned shell with respect to root, and the opposing party of above-mentioned airtight portion is provided with the jut of giving prominence to shape periphery butt with the suction inlet of above-mentioned electric blower at the airtight member inner peripheral surface.

2. electric dust collector according to claim 1 is characterized in that,

Above-mentioned annulus or jut are provided with more than two.

3. electric dust collector according to claim 1 and 2 is characterized in that,

At least the either party of above-mentioned airtight portion has laminal shape.

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