CN1144569C

CN1144569C - Electric vacuum cleaner

Info

Publication number: CN1144569C
Application number: CNB001041355A
Authority: CN
Inventors: 中井康一; 造; 小林利造; 基; 小寺定基; 行; 藤吉俊行; 裕; 森好弘; 西山高裕
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 1999-03-15
Filing date: 2000-03-15
Publication date: 2004-04-07
Anticipated expiration: 2020-03-15
Also published as: KR20010014547A; CN1266664A; KR100359065B1; TW418080B; JP2000262445A

Abstract

The invention realtes to a vacuum cleaner of discharged air circulation type, which reduces the weight of a double hose to form an air suction flow passage and an air discharge flow passage. In the vacuum cleaner in which an air discharge flow passage to circulate the air discharged from a motor-driven blower is formed together with an air suction flow passage A in a hose, a pipe and a suction piece to be connected to a vacuum cleaner body with the blower built therein, the hose is of double structure, a flexible hose (one-layer and two-wire hose) in which a coil wire with the electric conductivity and shape keeping property is built is used for an internal hose to form the air discharge flow passage, and a flexible hose (a conduit hose) in which no coil wire is built is used for an external hose to form the air suction flow passage.

Description

Electric dust collector

Technical field

The present invention relates to electric dust collector, especially relate to the exhaust that makes electric blowing machine and be back to ground with exhaust gas recirculation (circulation) the formula electric dust collector in inhalator etc. through flexible pipe and tube connector, above-mentioned electric blowing machine is contained in the main body of dust catcher.

Background technology

General ground mobile model dust catcher, be will be contained in the electric blowing machine in the main body of dust collector exhaust all from exhaust outlet row to the outside, this exhaust outlet is located at the rear side of deduster etc. and locates.

Promptly, the dust that is sucked together in company with air with inhalator etc. by ground is through tube connector and flexible pipe and be inhaled in the main body of dust collector, the air that removes behind the dust with paper bag etc. cools off the motor of electric blowing machine, discharge to the outside from exhaust outlet then, because of all discharging, so blow out to the outside strong from the exhaust of electric blowing machine 5.Therefore, can produce following bad phenomenon, promptly deposit, be stranded in dust on ground or the flannelette blanket and kicked up by this exhaust wind and in the room, spread.

In order to reduce this exhaust wind that blows out to the outside or to improve dust collecting effect etc., for example as being disclosed in the flat 9-135795 communique at real public clear 39-36553 communique or special opening, a kind of electric dust collector has been proposed, this dust catcher is on the flexible pipe that is connected with main body of dust collector, tube connector and inhalator, form air-breathing stream and exhaust flow path and constitute, this exhaust flow path makes part or all backflow of the exhaust of electric blowing machine.

Above-mentioned electric dust collector is that flexible pipe and tube connector are constituted dual structure, so that form air-breathing stream in the inboard, forms exhaust flow path in the outside.

Summary of the invention

As mentioned above, on exhaust gas recirculation formula electric dust collector, flexible pipe need adopt duplex., the flexible pipe of electric dust collector is general use be called one deck two-wire pipe in the heavier flexible pipe of winding wire etc. is housed, this winding wire has electric conductivity (because of being used as holding wire etc.) and conformality.Therefore, when this flexible pipe adopted dual structure, the flexible pipe overall weight was too heavy, and operating characteristics reduces, so exist the problem that is difficult to practicability.

Again, exhaust is by the stream in the duplex outside, but the exhaust that electric blowing machine is discharged can heating after motor is cooled off, and during the outside exhaust flow path of this exhaust by dual flexible pipe, the temperature of dual flexible pipe outer surface risen, so the serviceability reduction.

Therefore, the present invention develops in order to solve above-mentioned problem, and its purpose is to make the dual flexible pipe lightweight that forms exhaust gas recirculation air-breathing stream of formula electric dust collector and exhaust flow path.

Another purpose is to suppress the temperature rise of the caused dual flexible pipe outer surface of exhaust heat.

In order to achieve the above object, electric dust collector of the present invention is on the flexible pipe, tube connector and the inhalator that are connected on the main body of dust collector, the exhaust flow path that forms air-breathing stream and make the exhaust gas recirculation of electric blowing machine, above-mentioned electric blowing machine is contained in the main body of dust catcher, it is characterized in that: this flexible pipe constitutes dual structure, and the inboard flexible pipe that forms air-breathing stream is equipped with the flexible hose of conductor wire in using, and the outside flexible pipe that forms exhaust flow path uses the inner flexible hose of not adorning conductor wire.

Again, the invention provides a kind of electric dust collector, in being connected in, be equipped with on flexible pipe, tube connector and the inhalator on the main body of dust collector of electric blowing machine, the exhaust flow path that is formed with air-breathing stream and makes the exhaust gas recirculation of electric blowing machine, this electric dust collector is characterised in that: described flexible pipe is a duplex, and the inboard flexible pipe that forms air-breathing stream is equipped with the flexible hose of conformal member in using, and the outside flexible pipe that forms exhaust flow path uses the inner flexible hose of not adorning the conformal member;

Described outside flexible pipe uses concavo-convex insertion waves shape flexible pipe.

Be used for the inboard flexible pipe installation end that flexible pipe that a end with the flexible pipe of this duplex is contained in main body of dust collector inserts mouthful, the other end is contained in the tube connector of the duplex in the hose grip portion, give prominence to laterally than outside flexible pipe installation end.

This inboard flexible pipe is opaque, and outside flexible pipe has the transparency.

Above-mentioned tube connector is made of the inboard cylindrical portion of the air-breathing stream that forms cross section approximate circle shape and the outside cylindrical portion that forms exhaust flow path, and this outside cylindrical portion is to constitute like this, i.e. its part and this inboard cylindrical portion formation one, and cover inboard cylindrical portion.

The cross section of the exhaust flow path of described tube connector is approximate crescent, the cross section approximate circle shape of the outside cylindrical portion of this pipe.

Description of drawings

Fig. 1 is the unitary construction figure that expression applies the present invention to the embodiment of general ground mobile model dust catcher, omits the part midway of flexible pipe for ease of diagram.

Fig. 2 is the amplification profile of the main body of dust collector part of Fig. 1.

Fig. 3 is the amplification profile of the hose transition of Fig. 1.

Fig. 4 is the amplification profile of the hose grip portion of Fig. 1.

Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D, Fig. 5 E, Fig. 5 F are the structural maps of the tube connector of the foregoing description, wherein Fig. 5 A is its longitudinal sectional drawing, Fig. 5 B is the A-A profile of Fig. 5 A, Fig. 5 C is a side view, Fig. 5 D is the distolateral end view drawing of Fig. 5 C, Fig. 5 E is another distolateral end view drawing of Fig. 5 C, and Fig. 5 F is the B-B profile of Fig. 5 C.

The specific embodiment

Followingly describe embodiments of the invention in detail with reference to Fig. 1～Fig. 5 F.

Use ground of the present invention mobile model dust catcher as shown in Figure 1, constitute with inhalator 4 etc. by main body of dust collector 1, flexible pipe 2, connecting piece 3 and ground.

In main body of dust collector 1, be provided with the dust storage chamber 9 of motor room 6 and use paper bag 7 and micronic filter 8, be provided with inhalant electric blowing machine 5 in the motor room 6.

In the rear side of main body of dust collector 1, be formed with the exhaust outlet 11 that with filter 10 a part of exhaust of electric blowing machine 5 is discharged to the outside through exhaust again.

And the part of main body of dust collector 1, flexible pipe 2, connecting piece 3 and ground are duplex with the stream of inhalator 4, are divided into air-breathing stream A and exhaust flow path B, are communicated with between each one.

Promptly, in the dust storage chamber 9 of main body of dust collector 1 and the lower side of motor room 6, be formed with exhaust flow path B, be used for the part backflow with the exhaust of electric blowing machine 5, this exhaust flow path B is communicated with the exhaust flow path B that the flexible pipe that is contained in main body of dust collector 1 inserts the hose transition 20 on the mouth 12.

Tube connector 20a, the 20b of this hose transition 20 is the duplex of concentric circles, give prominence at the tube connector 20a two ends that form the inboard of air-breathing stream A, the one end inserts in the installation portion 7a of paper bag 7, and is communicated with the exhaust flow path B of aforementioned body 1 one sides by the exhaust flow path B that the tube connector 20b in the outside forms.

Distolateral at another of above-mentioned

tube connector

20a, 20b, an end of the flexible pipe 2 of duplex is installed.The inboard of this flexible pipe 2 use be called one deck two-wire flexible pipe in opaque flexible hose 2a winding wire 21, that general electric dust collector is used is housed, above-mentioned winding wire 21 has electric conductivity (because of being used as holding wire etc.) and conformality, be conceived in the flexible pipe 2a of this inboard, winding wire 21 is housed, and not needing the winding wire this point in the outside, the flexible hose 2b the same with the use in washing machine scupper hose that is called the conduit flexible pipe used in the outside.Conduit flexible pipe 2b is unlike one deck two-wire flexible pipe 2a, and its inside is wiring astragal 21 not, thus in light weight, and be concavo-convex insertion waves shape flexible pipe, so have the advantage that hose surface is long-pending greatly, thermal diffusivity is good.Again, in the present embodiment, this conduit flexible pipe 2b makes with semi-transparent resin.

Like this, heavier one deck two-wire flexible pipe 2a of wiring astragal 21 in the inboard flexible pipe that diameter is little uses, the outside flexible pipe that diameter is big uses light conduit flexible pipe 2b, therefore, can alleviate the weight of dual flexible pipe 2 greatly.

Again, the conduit flexible pipe 2b in the outside of formation exhaust flow path B such as above-mentioned is concavo-convex insertion waves shape flexible pipe, and hose surface is long-pending greatly, thermal diffusivity is good, so can suppress the temperature rise of the caused dual flexible pipe outer surface of exhaust heat.Like this, by suppressing the temperature rise of dual flexible pipe outer surface, temperature can not rise to the degree that the user has the difference sense, so improved serviceability.

In addition, because inboard one deck two-wire flexible pipe 2a is opaque, the conduit flexible pipe 2b in the outside is translucent, so can improve the beautiful degree of outward appearance by the improvement in the design, though dual flexible pipe 2 is thicker than general flexible pipe, but because of the conduit flexible pipe 2b in the outside is translucent, so can see inboard one deck two-wire flexible pipe 2a, it is thinner to seem to seem.Again, because of inboard one deck two-wire flexible pipe 2a that dust passed through opaque, the conduit flexible pipe 2b in the outside that dust free pure air passed through after the dedusting is translucent, so cannot see attached to the dust on one deck two-wire flexible pipe 2a inner face of inboard, and the conduit flexible pipe 2b inner face in the outside does not pollute, and therefore can not influence the outward appearance of dual flexible pipe 2.

This flexible pipe 2, be one deck two-wire pipe 2a with the inboard be screwed into install and fix in the rib 22 after, the tube connector 20b that again the conduit flexible pipe 2b in the outside is contained in the outside goes up and is bonded together, and above-mentioned rib 22 is to form on the outer surface of inboard tube connector 20a jag spirally.Cover the installation portion of this flexible pipe 2 with tubular over cap 23.

In the above-mentioned explanation, when one deck two-wire flexible pipe 2a that will be positioned at inboard difficulty installation installs on inboard tube connector 20a, because of this flexible pipe installation end is given prominence to laterally than the flexible pipe installation end of the tube connector 20b in the outside, so can under the hands-off situation of the tube connector 20b in the outside, install with comparalive ease, the installation procedure of dual flexible pipe 2 is oversimplified.

In addition, interior outer connecting pipe 20a, the 20b of above-mentioned hose transition 20, unshowned rib etc. partly couples together on the utilization figure, forms the duplex of concentric circles.

Again, the other end of this flexible pipe 2, with above-mentioned the same being fixed on tube connector 24a, the 24b, this tube connector 24a, 24b and the handle portion 24 of operating usefulness on hand form one.That is, with one deck two-wire flexible pipe 2a of inboard be screwed into install and fix in the rib 25 after, the tube connector 24b that again the conduit flexible pipe 2b in the outside is contained in the outside goes up and is bonded together, above-mentioned rib 25 is to form on the outer surface of the tube connector 24a of interior example jag spirally.The installation portion of this flexible pipe 2 also covers with tubular over cap 26.

This situation is also with above-mentioned the same, when one deck two-wire flexible pipe 2a that will be positioned at inboard difficulty installation is contained on the inboard tube connector 24a, because of this flexible pipe installation end is given prominence to laterally than the flexible pipe installation end of the tube connector 24b in the outside, so can under the hands-off situation of the tube connector 24b in the outside, install with comparalive ease, the installation procedure of dual flexible pipe 2 is oversimplified.

Again, this handle portion 24 is to constitute like this, is about to the air-breathing stream A of suction inlet 27 and partition wall portion 28 that exhaust flow path B separates to inner recess both set a distance, on this suction inlet 27 connecting piece 3 is housed.On the top of this suction inlet 27, be provided with the binding clasp 29 that is used to install and fix connecting piece 3.

In addition, by one deck two-wire flexible pipe 2a is located at the inboard, though the distribution that the function circuit plate 24c of its winding wire 21 and handle portion 24 couples together is handled, can't handle as in the past, but in the present embodiment, because of tube connector 24a, 24b and handle portion 24 formation one, so as shown in Figure 4, winding wire 21 can be connected with function circuit plate 24c through cable 21a.

In addition, connecting

piece

3,3 is respectively shown in Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D, Fig. 5 E, Fig. 5 F, constitute by the inboard cylindrical portion 3a of the air-breathing stream A that forms cross section approximate circle shape and the outside cylindrical portion 3b that forms exhaust flow path B, this cylindrical portion 3b top, outside and inboard cylindrical portion 3a form one, and cover inboard cylindrical portion 3a.

Again, because of the exhaust by this exhaust flow path B is a pure air after the paper bag 7 of main body of dust collector 1 and micronic filter 8 remove dust, make the sub-circular cross section so needn't as inboard cylindrical portion 3a, consider dust to block, consider this point, in the present embodiment this exhaust flow path B is made approximate crescent cross section, outside cylindrical portion 3b forms the sub-circular cross section.

Thereby, can correspondingly alleviate the weight that goes up the integrally part, go back Miniaturizable simultaneously, again because of inside and outside be sub-circular, so can not reduce intensity, the operating characteristics excellence.Therefore, the connecting piece 3 of present embodiment was compared with have only air-breathing tube connector in the past, did not have the difference sense, can obtain the essentially identical dust catcher of shape and operating characteristics.

In addition,, be equipped with as in the past and cover 32, be used for covering cable and the binding clasp 31 that is connected usefulness on the top of this connecting piece 3.

Again, on this connecting piece 3, connecting a connecting piece 3 again or connecting ground is formations like this with suction inlet 33 sides of inhalator 4, and partition wall portion (inner wall section of inboard cylindrical portion 3a) 34 that promptly separates air-breathing stream A and exhaust flow path B is to inner recess both set a distance.

The other end diameter of connecting piece 3 is slightly little, so that it is corresponding with suction inlet 33 sides of the suction inlet 27 of handle portion 24 and connecting piece 3, make the interior week of outside cylindrical portion 3b and suction inlet 27,33 sides chimeric, and top is formed with the projection 35 that fastens with binding clasp 29,31, till outside cylindrical portion 3b is embedded in binding clasp 29,31 always and projection 35 engages, the end of so inboard cylindrical portion 3a just with opening ora terminalis 28a, the 34a fluid-tight engagement of partition wall portion 28,34, this opening ora terminalis is to suction inlet 27,33 sides depression and form.

In addition, ground forms the duplex of concentric circles with junction block 4a, the 4b of inhalator 4, with the fitting portion of above-mentioned connecting piece 3 tablings with above-mentioned the same formation.

When use has the electric dust collector of said structure, utilize the suction of electric blowing machine 5, make to be mixed with the air of ground with the dust of inhalator 4 suctions, be inhaled in the main body of dust collector 1 by the air-breathing stream A of connecting piece 3, the air-breathing stream A of dual flexible pipe 2.In main body of dust collector 1, except that behind the dust, the air that purifies through micronic filter 8 is attracted by electric blowing machine 5 again, cools off its motor 5a with paper bag 7.

A part of exhaust of electric blowing machine 5 is arranged to the outside from the exhaust outlet 11 of main body of dust collector 1, remaining exhaust is by exhaust flow path B, the exhaust flow path B of connecting piece 3 of flexible pipe 2, circulate to the air-breathing stream A of connecting piece 3 more together with the dust that inhalator 4 refluxes and this exhaust wind is kicked up earthward from the exhaust flow path B of main body of dust collector 1.

As mentioned above, the exhaust gas recirculation formula electric dust collector of present embodiment, because of alleviating the weight of the flexible pipe 2 that air-breathing stream A and exhaust flow path B pass through greatly, can suppress surface temperature rises, and make connecting piece 3 lightweights, miniaturization etc., therefore can specifically bring into play the advantage of exhaust gas recirculation formula in actual applications.

That is, with a part of exhaust gas recirculation, make to blow to outside exhaust wind and reduce and die down, the dust in can suppressing effectively to clear away in the room is kicked up.

The air of circulation is repeatedly also arranged, thereby utilize the rows of making such as paper bag 7 and micronic filter 8 cleaner to the exhaust wind of outside itself.Flow velocity because of the exhaust wind that blows out from exhaust outlet 11 has also reduced again, so the filter efficiency of discharge filter 10 improves the better effects if of exhaust gas purification.This also meets the purpose that people in recent years require air cleaner.

In addition, in the above-described embodiments, harness had one deck two-wire flexible pipe 2a of the winding wire 21 of electric conductivity and conformality in inboard flexible pipe used, but the present invention does not limit to so, for example also can use the flexible pipe of the interior dress holding wire that is called the double-layer four-line flexible pipe and power line (brush with), or in the not so good electric wire of conformality (copper cash etc.) is housed and flexible pipe itself has the flexible pipe of conformality, or in flexible pipe of the coiled type member with conformality (conformal member) that metal or synthetic resin makes etc. is housed.

Again, make outside flexible pipe (conduit flexible pipe 2b) translucent, but no matter be translucent or transparent, as long as have the transparency, just can obtain and above-mentioned the same action effect.

As mentioned above, according to the present invention, flexible pipe is made dual structure, and the inboard flexible pipe that forms air-breathing stream uses the flexible hose of interior dress conductor wire, the outside flexible pipe that forms exhaust flow path uses the inner flexible hose of not adorning conductor wire, use the heavier flexible pipe of interior dress conductor wire because of the little inboard flexible pipe of diameter, the outside flexible pipe that diameter is big uses the inner low weight flexible pipe of not adorning conductor wire, so can alleviate the weight of the dual flexible pipe that air-breathing stream and exhaust flow path pass through greatly, make the easy practicability of exhaust gas recirculation formula electric dust collector.

Again, by flexible pipe is made dual structure, and the inboard flexible pipe that forms air-breathing stream uses the flexible hose of interior dress conformal member, the outside flexible pipe that forms exhaust flow path uses the inner flexible hose of not adorning the conformal member, use the heavier flexible pipe of interior dress conformal member because of the little inboard flexible pipe of diameter, the outside flexible pipe that diameter is big uses the inner low weight flexible pipe of not adorning the conformal member, therefore can alleviate the weight of the dual flexible pipe that air-breathing stream and exhaust flow path pass through greatly, make the easy practicability of exhaust gas recirculation formula electric dust collector.

In addition, outside flexible pipe uses concavo-convex insertion waves shape flexible pipe, makes long-pending increase of hose surface and the raising thermal diffusivity, so can suppress the caused dual flexible pipe hull-skin temperature of exhaust heat raises, therefore, temperature can not rise to the degree that the user has the difference sense, and serviceability improves.

Again, the inboard flexible pipe installation end of the tube connector of duplex is given prominence to laterally than outside flexible pipe installation end, like this, when the inboard flexible pipe that installation is difficult to install, because of the flexible pipe installation end of the tube connector of inboard more outstanding laterally than the flexible pipe installation end of the tube connector in the outside, so can not be subjected to the obstruction of outside tube connector, can install with comparalive ease, can simplify the installation procedure of dual flexible pipe, the tube connector of above-mentioned dual structure is used for an end of the flexible pipe of dual structure is contained in the flexible pipe insertion mouth of main body of dust collector, and the other end is contained in the hose grip portion.

Again, because of inboard flexible pipe is opaque, and outside flexible pipe has the transparency, so can improve the beautiful degree of outward appearance by the improvement in the design, though dual flexible pipe is thicker than general flexible pipe, but can see inboard flexible pipe, therefore seem thinner because of seeing through outside flexible pipe with transparency.Again, the inboard flexible pipe that passes through because of dust is opaque, and the outside flexible pipe that the dust free pure air after the dedusting passes through is translucent, so cannot see the dust that is attached on the inboard flexible pipe inner face, outside flexible pipe inner face does not pollute, so the outward appearance of dual flexible pipe can be not influenced yet.

Again, because of tube connector is to be made of the inboard cylindrical portion of the air-breathing stream that forms the sub-circular cross section and the outside cylindrical portion that forms exhaust flow path, so needn't worry dust blocks, can alleviate the weight of the tube connector that air-breathing stream and exhaust flow path pass through greatly, the easier practicability of exhaust gas recirculation formula electric dust collector, the part of above-mentioned outside cylindrical portion and above-mentioned inboard cylindrical portion form one, and cover inboard cylindrical portion.

In addition, the cross section of the exhaust flow path of tube connector is made as approximate crescent, the cross section of the outside cylindrical portion of this tube connector is set as sub-circular, like this, compare with only air-breathing tube connector in the past, do not have the difference sense, the dust catcher that can be had same shape and operating characteristics substantially.

Claims

1. electric dust collector, be with flexible pipe, tube connector and inhalator that the interior main body of dust collector that electric blowing machine is housed is connected on, form air-breathing stream and the exhaust flow path of the exhaust gas recirculation of electric blowing machine constituted,

It is characterized in that:

Above-mentioned flexible pipe is a dual structure, and forms the flexible hose of the interior dress of the inboard flexible pipe use conductor wire of air-breathing stream, and the outside flexible pipe that forms exhaust flow path uses inside not adorn the flexible hose of conductor wire.

2. electric dust collector, be with flexible pipe, tube connector and inhalator that the interior main body of dust collector that electric blowing machine is housed is connected on, form air-breathing stream and the exhaust flow path of the exhaust gas recirculation of electric blowing machine constituted,

It is characterized in that:

Above-mentioned flexible pipe is a dual structure, and forms the flexible hose of the interior dress of the inboard flexible pipe use conformal member of air-breathing stream, and the outside flexible pipe that forms exhaust flow path uses inside not adorn the flexible hose of conformal member.

3. electric dust collector as claimed in claim 1 or 2 is characterized in that, above-mentioned outside flexible pipe uses concavo-convex insertion waves shape flexible pipe.

4. electric dust collector as claimed in claim 1 or 2, it is characterized in that: the inboard flexible pipe installation end of the tube connector of duplex is given prominence to laterally than outside flexible pipe installation end, the tube connector of this duplex is used for an end of the flexible pipe of above-mentioned duplex is contained in the flexible pipe insertion mouth of main body of dust collector, and the other end is contained in the hose grip portion.

5. electric dust collector as claimed in claim 1 or 2 is characterized in that: described inboard flexible pipe is opaque, and outside flexible pipe has the transparency.

6. electric dust collector as claimed in claim 1 or 2, it is characterized in that: above-mentioned tube connector is made of the inboard cylindrical portion of the air-breathing stream that forms the sub-circular cross section and the outside cylindrical portion that forms exhaust flow path, the part of this outside cylindrical portion and this inboard cylindrical portion form one, and cover inboard cylindrical portion.

7. electric dust collector as claimed in claim 6 is characterized in that: the cross section of the exhaust flow path of aforementioned tube is approximate crescent, the cross section approximate circle shape of the outside cylindrical portion of this tube connector.