The specific embodiment
Below, the structure of one embodiment of the present invention is described referring to figs. 1 through Fig. 3.
In Fig. 3, the so-called Horizontal electronic dust catcher of 11 expressions, this electric dust collector 11 has pipe section 12 and is connected with removably the main body of dust collector 13 of this pipe section 12.
Pipe section 12 possesses: tube connector section 15 is connected with main body of dust collector 13; Hose body 16 has flexibility, is communicated with the front of this tube connector section 15; Manual operation unit 17 is located at the front of this hose body 16; Extension tube 18 is connected removably with the front of this manual operation unit 17; And scrubbing brush 19, as section port body, this section port body is connected removably with the front of this extension tube 18.
On manual operation unit 17, handle part 21 is side-prominent to hose body 16, on this handle part 21, is provided with the setting button 22 of a plurality of operation usefulness.
In addition, main body of dust collector 13 possesses the main body case 25 of hollow form as shown in Figures 1 and 2, inside at this main body case 25, be formed with partition wall 26 in the roughly zone line of fore-and-aft direction, dividing in the front side of this partition wall 26 has anterior chamber 27, and dividing at the rear side of partition wall 26 has chamber, rear portion 28.And forwardly in the chamber 27, dividing has main body dust storage chamber 31, and in chamber, rear portion 28, dividing respectively has: electric blower chamber 33, accommodate electric blower section 32; The coil of wire axle of having reeled to the not shown power line of power supply such as electric blower section 32 grades is accommodated in not shown coil of wire axle chamber; And as the exhaust wind path chamber 35 of confined space.That is the multiple structure that, main body case 25 has main body dust storage chamber 31 for forwardly chamber 27 interior divisions, 28 interior divisions have electric blower chamber 33, coil of wire axle chamber and exhaust wind path chamber 35 in the chamber, rear portion.
Main body case 25 possesses: nowel 41, side opening on it such as being formed by synthetic resin etc.; Top box 42 covers the chamber, rear portion 28 as the upside rear portion of this nowel 41; And lid 43, the direction rotary axis of earth is supported on this top box 42 or the nowel 41 up and down, covers anterior chamber 27 and main body dust storage chamber 31 can be opened and closed.And in the front portion of main body case 25, opening is formed with the main body suction inlet 44 as suction inlet.
Nowel 41 possess the side 41b (only illustrating) that is opposite to the opposed bottom surface 41a in the bottom of electric blower section 32, respectively the sidepiece of electric blower section 32 and with the opposed back 41c in the rear portion of electric blower section 32, form the case shape of side opening.In addition, on each side 41b of this nowel 41, rotating respectively freely, the earth's axis is supporting the wheel 46 that travels that main body of dust collector 13 is being travelled as the ground of swept surface.
On the top of top box 42, be formed with to carry the handle portion 48 of main body of dust collector 13 about spreading all over.In addition, at the rear portion of top box 42, side opening is formed with a plurality of exhaust outlets 49 that are communicated with electric blower chamber 33 on the rear, in this exhaust outlet 49, exhaust outlet filter 50 is installed.
The rear axle of lid 43 is supported on top box 42 or the nowel 41, and direction is rotated up and down, constitutes, and under the state of direction main body dust storage chamber 31 is opened on turning to, and main body dust storage chamber 31 is closed turning under the state of lower direction.
Main body suction inlet 44 is communicated with the outside of main body dust storage chamber 31 with main body case 25.In addition, on this main body suction inlet 44, connecting removably tube connector section 15 (Fig. 3).
Main body dust storage chamber 31 is parts that the driving by electric blower section 32 will capture via the dust that pipe section 12 (Fig. 3) sucks with air, dust bag P such as paper bag etc. can be installed in inside, and in the downstream of this dust bag P, the upstream side of partition wall 26, the dust storage chamber filter F is installed.
The second electric blower cover 53 that electric blower section 32 possesses electric blower 51, covers the first electric blower cover 52 of this electric blower 51 and cover this first electric blower cover 52.
Linking integratedly on electric blower 51 has the fan guard 58 that covers centrifugal fan 57 and consists of, this centrifugal fan 57 with respect to the motor box 56 of accommodating motor part 55 by motor part 55 rotary actuations.In addition, electric blower 51 makes this front side tilt with respect to horizontal direction slightly downwards take motor part 55 (motor box 56) side as rear side,, be configured to as the front side take centrifugal fan 57 (fan guard 58).
Motor part 55 makes with the integrally formed not shown rotor of rotating shaft 55a and not shown commutator and produces rotary pole, make the not shown stator of the tubular on every side that is positioned at this rotor produce fixed magnetic pole, thereby rotating shaft 55a is rotated to prescribed direction.
Motor box 56 has: box main body 56a, and the outline of formation motor part 55, forming roughly has the round-ended cylinder shape; And board 56b is installed, the open side of this box main body 56a is radially transversal and install.And on box main body 56a, opening is formed with a plurality of air blast exhaust outlet 56c.In addition, on the central portion of the rearward end of this box main body 56a, the outstanding roughly motor head 56d cylindraceous that is formed with rearward.And then, the periphery of this box main body 56a via suspension fork mechanism 61 flexibly suspension be supported on the first electric blower cover 52.
In motor head 56d, contain not shown bearing and flexibly support the thrust spring etc. of this bearing.And, by this bearing and be housed among the installation board 56b of motor box 56 bearing rotary freely the earth's axis supporting rotating shaft 55a.
In addition, suspension fork mechanism 61 has circular medial branch support part 61a and circular lateral branch support part 61b coaxially, this circular medial branch support part 61a be fixed on box main body 56a around, this circular lateral branch support part 61b is fixed on the first electric blower cover 52 sides, and configuration consists of as a plurality of disc spring 61c of force application mechanism between these support portions 61a, 61b.That is, each disc spring 61c with respect to electric blower 51 with radial configuration.In addition, disc spring 61c is preferably along circumferentially roughly equally spaced configuration.And suspension fork mechanism 61 is configured to, make its with the position of centre of gravity of electric blower 51 or near the position the center of gravity with respect to the first electric blower cover 52 suspensions.
In addition, centrifugal fan 57 will blow side out to periphery from the air that central portion sucks, and is attached on the end of rotating shaft 55a, is positioned at the outside of motor box 56, is positioned at the front side here.In addition, around this centrifugal fan 57, dispose cowling panel 64, be used for air rectification from this centrifugal fan 57 to periphery that to blow side out from and in box main body 56a, flowing.The central portion of this cowling panel 64 is fixed on the installation board 56b of motor box 56.
Fan guard 58 covers centrifugal fans 57 and cowling panel 64 and is fixed on the front side of the box main body 56a of motor box 56.In addition, this fan guard 58 form the central portion opening have circular hole air entry 66 roughly have the lid cylindric.
In addition, the first electric blower cover 52 is by forming roughly cylindric such as synthetic resin etc.This first electric blower cover 52 is formed with the first cover suction inlet 71 of circular hole in the leading section upper shed as an end, on the rearward end as the other end, rearward outstanding and be formed with roughly cylindraceous resettlement section 72 of the motor head 56d that accommodates electric blower 51.And then, in the bottom of this first electric blower cover 52, be opposite to the air blast exhaust outlet 56c of electric blower 51 and opening is formed with the first cover exhaust outlet 73.In addition, this first electric blower cover 52 is divided into before and after for example as the roughly front side 52a of cover section cylindraceous of first a cover section with as the roughly rear side cover 52b of section cylindraceous of another the first cover section.And, being attached on the suction side muffler 75 as main body case 25 sides via the roughly upstream side seal parts 74 of circular conduct the first seal member as the antivibrating parts of elastomeric element as the first cover suction inlet 71 sides of front of this first electric blower cover 52 is supported on the second electric blower cover 53 as main body case 25 sides via the downstream side seal parts 76 as the second seal member of elastomeric element as a resettlement section 72 sides of rear end side.Thereby the bottom of the first electric blower cover 52 is with respect to the state partition distance of bottom to float of the second electric blower cover 53.
The first cover exhaust outlet 73 for example is formed between the 52a of front side cover section and the rear side cover 52b of section bottom separately, is positioned at the rear side of the first electric blower cover 52.In addition, at this first cover exhaust outlet 73 cover filter 77 is installed.
Upstream side seal parts 74 form such as the elastomeric element (compliant member) by rubber or elastomer etc.In addition, the front of these upstream side seal parts 74 is attached on the rear end side as exhaust side of suction side muffler 75 airtightly, the centre position of fore-and-aft direction is fastened on first of the first electric blower cover 52 and covers on the inner edge of suction inlet 71, and rear end side is installed to the front of fan guard 58 from the circumference of the air entry 66 of the fan guard 58 of electric blower 51.Therefore, suction side muffler 75 is connected with the air entry 66 of electric blower 51 airtightly via upstream side seal parts 74.
This suction side muffler 75 is so-called intumescent mufflers, the operation sound (hereinafter to be referred as the driving sound of making electric blower 51) that absorption occurs along with the driving of electric blower 51 or the sound of the wind that is produced by the air that the driving of electric blower 51 sucks make it not to the transmission of scrubbing brush 19 (Fig. 3) side.And this suction side muffler 75 has that leading section is installed on the partition wall 26 and towards rear (downstream) the leading into body (inducer) 75a of section, be installed in this and lead into the division body 75b of the inside of body 75a and be configured in these and lead into body 75a and divide sound-absorbing spare 75c between the body 75b as muffler body funnelform of undergauge gradually.
Leading into body 75a is with passing through the part of the downstream side rectification of air of main body dust storage chamber 31, in partition wall 26 upper sheds, is connected to airtightly the rear side as the downstream of the connected entrance 78 that is communicated with main body dust storage chamber 31.Therefore, the air entry 66 of electric blower 51 is communicated with main body dust storage chamber 31 and main body suction inlet 44 via suction side muffler 75 and connected entrance 78.In addition, lead into the rear side of body 75a at this, be formed with bulge 75e with the jump shape, this bulge 75e and divide the 75d of expansion space section that divides between the body 75b as silence space section.It is roughly certain cylindric that this bulge 75e forms in the past side direction rear side diameter dimension.
In addition, divide body 75b and form roughly cylindricly, lead on body 75a such as being fixed on by screw etc.And then, divide on the leading section of body 75b at this, with the flange shape flange part 75f that is formed with the front side that covers bulge 75e.In addition, around this division body 75b, be formed with the open communication 75g that a plurality of inboards that will divide body 75b are communicated with the outside.
Flange part 75f with than leading into the partial continuous of the forward side of bulge 75e (upstream side) of body 75a, form the rectification face with the air rectification.
In addition, sound-absorbing spare 75c has aeration, is configured to, and makes it that 75d of expansion space section is integral-filled.
Thereby the 75d of expansion space section makes the air expansion by suction side muffler 75 reduce the spatial portion that pressure carries out noise reduction.
In addition, the sound of the wind that occurs of flowing of the air that sucks corresponding to the driving sound of electric blower 51 and because of the driving by electric blower 51 such as the size of the material of sound-absorbing spare 75c and the 75d of expansion space section etc. wants the frequency of the hope of sound-absorbing at random to set.
On the other hand, downstream side seal parts 76 are formed by the elastomeric element (compliant member) such as rubber or elastomer etc.In addition, these downstream side seal parts 76 surround installing of a resettlement section 72 on every side.
In addition, the second electric blower cover 53 is such as being formed by synthetic resin etc., for example is divided into up and down as the downside cover 53a of section of second a cover section with as the upside cover 53b of section of another the second cover section.And this second electric blower cover 53 marks off electric blower chamber 33 in chamber, rear portion 28.
The downside cover 53a of section forms at left and right sides width for strip and at the case shape of upper side opening, is fixed on the nowel 41 such as the fixed part of both sides by screw etc.Thereby the bottom of this downside cover 53a of section is with respect to the state partition distance of bottom surface 41a to float of nowel 41.In addition, the sidepiece of this downside cover 53a of section becomes the wall section that divides electric blower chamber 33 and coil of wire axle chamber, forms the not shown hole section that electric blower chamber 33 is communicated with coil of wire axle chamber at this sidepiece, in this hole section not shown filter is installed.And then the first cover exhaust outlet 73 of following and the first electric blower cover 52 of this downside cover 53a of section is opposed.And, the leading section of this downside cover 53a of section be entrenched in airtightly suction side muffler 75 around, rearward end is fixed on the inboard of the back 41c of nowel 41.In addition, the top in the rear end of this downside cover 53a of section is loading the bottom that is installed in the above-mentioned downstream side seal parts 76 on the first electric blower cover 52.
In addition, the upside cover 53b of section forms strip at left and right sides width, such as both sides etc. fixing with respect to the downside cover 53a of section by fixed part, covers the upside of this downside cover 53a of section is whole, so that its integral body with the first electric blower cover 52 covers.In addition, in the front portion of the flat condition of this upside cover 53b of section, be formed with a plurality of the second cover exhaust outlets 81 that electric blower chamber 33 is communicated with exhaust wind path chamber 35 in left and right sides width upper shed.And then, on the top of this upside cover 53b of section, outstandingly upward being formed with to install the installation portion 83 of main body control section 82, this main body control section 82 is as the controlling organization of the driving that is used for controlling electric blower 51.And, above this upside cover 53b of section, casing 84 is installed, this casing 84 be used for dividing and this upside cover 53b of section between exhaust wind path chamber 35.In addition, this upside cover 53b of section is with respect to the top partition distance of the first electric blower cover 52.And then and crooked downwards, the bottom of this rear end is crimped on the top of the above-mentioned downstream side seal parts 76 that are installed on the first electric blower cover 52 along the profile of the first electric blower cover 52 in the rear end of this upside cover 53b of section.Thereby, the rear side of the first electric blower cover 52 by the rear end of the rear end of the upside cover 53b of section and the downside cover 53a of section via downstream side seal parts 76 from flexibly gripping up and down.
The second cover exhaust outlet 81 is positioned at the top of suction side muffler 75, along the above-below direction opening.In addition, on the top of these the second cover exhaust outlets 81, namely as exhaust wind path chamber 35 sides of exhaust side, dispose the exhaust side sound-absorbing spare 86 with aeration, these exhaust side sound-absorbing spares 86 are with the second cover exhaust outlet 81 whole coverings.
In addition, the material of exhaust side sound-absorbing spare 86 is such as being polyurathamc etc., corresponding to the driving sound of electric blower 51 and because wanting the frequency of the hope of sound-absorbing at random to set from the sound of the wind of the generations such as flowing of the air of electric blower 51 exhausts etc.
Main body control section 82 carries out for example angle of flow control corresponding to the operation of setting button 22 (Fig. 3) to electric blower 51, to be installed in as the various parts such as microcontroller of controlling organization main body on the substrate and consist of, for example with horizontal, namely the direction of passing through of the air in 35 is fixed on the installation portion 83 along exhaust wind path chamber.
Casing 84 is such as forming by synthetic resin etc. at left and right sides width as growing crosswise, and the top that is opposite to the upside cover 53b of section is whole.Thereby exhaust wind path chamber 35 is divided in the top of the second electric blower cover 53.In addition, this casing 84 is fixed with respect to the upside cover 53b of section via the installing component of not shown screw etc.And then the lower end integral body of this casing 84 is closely contacted on the top of the upside cover 53b of section, and top be closely contacted on main body case 25 top box 42 the inboard and extend along fore-and-aft direction with horizontal.In addition, at the front end of this casing 84, be formed with the front wall portion 84a of wall shape along above-below direction in the place ahead of the second cover exhaust outlet 81.And the rear end of this casing 84 is closely contacted on the upstream side of exhaust outlet 49.Thereby, exhaust wind path chamber 35 between the upside cover 53b of section (the second electric blower cover 53) and casing 84, form 49 airtight to exhaust outlet from the second cover exhaust outlet 81, in the expansion of left and right sides width and along space that fore-and-aft direction extends.In other words, exhaust wind path chamber 35 on the position between the second cover exhaust outlet 81 and the exhaust outlet 49, do not form the silence space of the intumescent in the hole section of other air leak and gap (slit) etc., i.e. chamber.That is, exhaust wind path chamber 35 forms, and makes its wind path sectional area larger with respect to the aperture area of the second cover exhaust outlet 81.
In addition, coil of wire axle chamber is communicated with the outside of main body case 25 via the not shown line export mouth of opening at the rear portion of top box 42.And the line export mouth forms the size that the front of power line can be derived.In addition, coil of wire axle chamber, power line and coil of wire axle are distinguished not necessarily structure.That is, electric dust collector 11 also can be the structure of the battery by being built in secondary cell in the main body of dust collector 13 (main body case 25) etc. to power supplies such as electric blower section 32 and main body control sections 82.
The effect of an above-mentioned embodiment then, is described.
When cleaning, can under the state of electric blower 51 power supplies, operate setting button 22 by controlled handle part shown in Figure 3 21 by the operator, main body control section 82 drives electric blower 51.That is, the motor part 55 by electric blower 51 makes centrifugal fan 57 rotations produce negative pressure.This negative pressure, sucks dust from the front of scrubbing brush 19 to main body dust storage chamber 31, main body suction inlet 44 and 12 effects of pipe section via suction side muffler 75 with air.In addition, the vibration of rotation that is accompanied by the centrifugal fan 57 of electric blower 51 is absorbed by the flexible of disc spring 61c, and is suppressed to the transmission of the first electric blower cover 52, and the driving sound of this electric blower 51 is by 75 noise reductions of suction side muffler.
The operator by will scrubbing brush shown in Figure 3 19 mountings on the ground, control handle part 21 and scrubbing brush 19 moved forward and backward, with ground dust from scrubbing brush 19 suctions and clean.
The air that is inhaled into becomes suction wind, is inhaled into main body dust storage chamber 31 with dust via extension tube 18, hose body 16 and tube connector section 15, with the dust bag P of this main body dust storage chamber 31 dust is captured.And, the suction wind of this dust that has been captured by after the dust storage chamber filter F by from connected entrance 78 inhale side mufflers 75, be rectified along leading into body 75a and flange part 75f of this suction side muffler 75.And then, suck wind and expand from open communication 75g to the 75d of expansion space section, thereby sound of the wind and is filled in sound-absorbing spare 75c sound-absorbing among the 75d of this expansion space section by sound-absorbing.
Then, suck wind is inhaled into electric blower 51 through the first cover suction inlet 71 via the inside of upstream side seal parts 74 from suction side muffler 75 air entry 66, blown side out from the central portion suction of centrifugal fan 57 and to periphery, be inhaled in the box main body 56a of motor box 56 and become exhaust wind while being rectified plate 64 rectifications, in the time of in passing through this box main body 56a motor part 55 is cooled off, and blown out from air blast exhaust outlet 56c.
And, after this exhaust wind is rectified in the first electric blower cover 52, covered exhaust outlet 73 electric blower chamber 33 interior exhausts downwards while passing through cover filter 77 from first, thereby winding-up below the downside cover 53a of section of the second electric blower cover 53, the front side from this downside cover 53a of section to the first electric blower cover 52 on one side via suction side muffler 75 around on one side by from the second cover exhaust outlet 81 exhaust wind path chamber 35 interior exhausts upward.
At this moment, exhaust wind is covered exhaust outlet 73 to the 53 interior exhausts of the second electric blower cover from first, again by from the second cover exhaust outlet 81 to 35 exhausts of exhaust wind path chamber etc., long and the expansion in exhaust wind path chamber 35 via long wind path, and by being configured in the exhaust side sound-absorbing spare 86 of the second cover in the exhaust outlet 81, thereby the sound of the wind that is produced by exhaust wind and the driving cent that is included in the electric blower 51 in the exhaust wind be not by sound-absorbing.
Then, exhaust wind rearward passes through 82 coolings of main body control section in exhaust wind path chamber 35 on one side on one side, by exhaust outlet filter 50 and 25 the outside exhaust from exhaust outlet 49 to main body case.
If cleaning finishes, then operator's proper handling is set button 22, and the driving of electric blower 51 is stopped.
As mentioned above, according to an above-mentioned embodiment, cover and with the driving sound sound insulation of electric blower 51 by the first electric blower cover 52 usefulness second electric blower cover 53 that will cover electric blower 51, and will discharge from exhaust outlet 49 afterwards by the first electric blower cover 52, the second electric blower cover 53 and exhaust wind path chamber 35 from the exhaust of electric blower 51 etc., guarantee the wind path length of exhaust, by will concentrate the sound of the wind sound-absorbing that occurs by narrow wind path of lacking because of Wind Volume especially largely, can improve quietness.
In addition, by exhaust wind path chamber 35 being made the silence space of intumescent, exhaust wind expands in exhaust wind path chamber 35, thereby be included in from electric blower chamber 33 to exhaust wind path chamber the driving sound of the electric blower 51 the 35 exhaust wind that flow or sound of the wind by sound-absorbing, so can further improve quietness.
And then, by the exhaust side configuration exhaust side sound-absorbing spare 86 at the second cover exhaust outlet 81, can by this exhaust side sound-absorbing spare 86 with sound-absorbings such as the driving sound of electric blower 51 or sounds of the wind, can further improve quietness.
And, by on the first cover suction inlet 71 of the first electric blower cover 52, linking suction side muffler 75 via upstream side seal parts 74, can support electric blower 51 with the first electric blower cover 52 via this sound-absorbing side muffler 75 position nearer in the axle center of distance electric blower 51, so the impact of the vibration that occurs along with the driving of electric blower 51 can be suppressed at Min..
And, by configuration sound-absorbing spare 75c in the 75d of of the expansion space of suction side muffler 75, can further improve the sound-absorbing effect that suction side muffler 75 brings, can further improve quietness.
And, because can be by the sound sound-absorbing of suction side muffler 75 with the suction side of electric blower 51, so can further suppress the noise from the front release of scrubbing brush 19 via main body dust storage chamber 31, main body suction inlet 44 and pipe section 12, can further improve quietness.
In addition, by the first cover exhaust outlet 73 being configured in the rear side of the first electric blower cover 52, with the second cover exhaust outlet 81 be configured in the front side of the second electric blower cover 53, namely distance first is covered exhaust outlet 73 position far away, and with exhaust outlet 49 be configured in the rear side of main body case 25, namely apart from the second cover exhaust outlet 81 position far away, the length of the exhaust wind path that passes through from the exhaust wind of electric blower 51 is repeatedly turned back on fore-and-aft direction like that shown in the arrow among Fig. 2 and is elongated, so can further improve quietness.
And then, by suspension fork mechanism 61 with around the electric blower 51 with respect to the first electric blower cover 52 suspension flexibly, to flexibly support respectively via seal member 74,76 as front side and the rear side at the axial both ends of this first electric blower cover 52, thereby the vibration that the driving that can suppress electric blower 51 brings is transmitted to the outside of the second electric blower cover 53 or main body case 25, can further improve quietness.
And, owing to make the bottom of the first electric blower cover 52 with respect to the bottom partition distance of the second electric blower cover 53, and make the bottom of the second electric blower cover 53 with respect to the bottom surface 41a partition distance of the nowel 41 of main body case 25, transmit to main body case 25 so the vibration that is occured by the driving of electric blower 51 is more difficult, can suppress the noise along with this vibration generation, so can further improve quietness.
And, since with main body case 25 forwardly chamber 27 interior division main body dust storage chambers 31, in the chamber, rear portion interior division electric blower chambers 33 28 etc., make multiple structure, so the driving sound of electric blower 51 and the vibration etc. that is accompanied by driving are difficult for transmitting to the outside of main body case 25, can further improve quietness.
In addition, by main body control section 82 is configured in the exhaust wind path chamber 35, can utilize the exhaust wind by this exhaust wind path chamber 35 that main body control section 82 is cooled off expeditiously.
In addition, in an above-mentioned embodiment, also the part of exhaust wind path chamber 35 can be made the silence space of intumescent.
In addition, the second electric blower cover 53 also can be the structure of the part that covers the first electric blower cover 52.
And then, the detail portion of electric dust collector 11 is not limited to said structure, for example be not only horizontal electric dust collector 11, connecting the vertical electric dust collector of scrubbing brush 19 or handheld electric dust collector etc. electric dust collector can both be corresponding arbitrarily in the bottom of the main body of dust collector 13 of lengthwise.
Label declaration
11 electric dust collectors
25 main body cases
The exhaust wind path chambers as confined space 35
The 44 main body suction inlets as suction inlet
49 exhaust outlets
51 electric blowers
52 first electric blower covers
53 second electric blower covers
61 suspension fork mechanisms
71 first cover suction inlets
73 first cover exhaust outlets
74 antivibrating parts as elastomeric element are the upstream side seal parts
75 suction side mufflers
75c sound-absorbing spare
75d is as the expansion space section of silence space section
The 76 downstream side seal parts as elastomeric element
81 second cover exhaust outlets
84 casings
86 exhaust side sound-absorbing spares