CN1133397C

CN1133397C - Electric cleaner

Info

Publication number: CN1133397C
Application number: CNB001358723A
Authority: CN
Inventors: 吉田润; 宏; 森田明宏; 隆; 鹿野裕隆
Original assignee: Sanyo Electric Co Ltd
Current assignee: Sanyo Electric Co Ltd
Priority date: 1999-12-24
Filing date: 2000-12-22
Publication date: 2004-01-07
Anticipated expiration: 2020-12-22
Also published as: KR100416159B1; JP2001178664A; TW579832U; CN1301520A; KR20010061951A

Abstract

An electric cleaner is provided with a discharge passage C for directly discharging exhaust from a blower to the outer side of a cleaner main body, wherein the cleaner main body with an incorporated blower is connected to a cleaner nozzle by a sucking passage A and a discharge reflux passage B for circulating the exhaust gas from the blower, a discharge amount adjusting means (an opening/closing valve by an elastic hinge) for adjusting the ratio of a discharge amount to be fluxed back to the discharge reflux passage B with the discharge amount to be directly discharged to the outer part of the cleaner main body via the discharge passage C. A discharge reflux ratio may be changed as necessary.

Description

Electric dust collector

The present invention relates to a kind of electric dust collector, particularly relate to a kind of exhaust of sending from built-in electric fan forms circulation by flexible pipe and hard tube and cleaner head exhaust circulation (circulation) formula electric dust collector.

Common ground moving dust catcher is to be designed to the form that gas that the electric fan in the dust collector host discharges is all discharged from the exhaust outlet of main frame back.

Be specially dust and air and be inhaled in the dust collector host by hard tube and flexible pipe by cleaner head, through dust collecting paper bag dust is removed, the air that removes dust cools off the drive division of motor, is discharged from by exhaust outlet then.Yet because the exhaust of electric fan all is discharged from, the wind of discharge is very strong, and part is blown by institute, no matter is floor or carpet, and the dust above it is blown in the air, makes the cleaning in the chamber strengthen difficulty.

To reduce outside exhaust air rate, raising pick-up performance etc. is purpose, and people have proposed following scheme.That is, in the flexible pipe and the hard tube and the head of giving a dinner of welcome of original connection dust collector host, together form a circulation flow path that the exhaust of electric fan is circulated with air suction way.

But, if motor is all passed through in the exhaust of electric fan, gas behind this cooling motor is circulated, because its temperature of the gas behind the cooling motor raises, circulation back temperature is more and more higher repeatedly, to make the temperature rising of dust collector host, flexible pipe, hard tube and motor, and under the state of this high temperature, continue to use dust catcher singly not feel bad, and also might cause main frame distortion, motor properties to descend even damage.On the other hand, contain the carbon powder particle that the carbon brush by motor generates with contacting of commutator in the gas behind the cooling motor, as it is circulated, carbon dust will paid on exhaust loop wall and from the dust suction draught animals and be blown the cleaning face etc. of making dirty.It as the whole circulation of exhaust, will reduce from the new outer gas that sucks of cleaner head again, causes the decline of dust-absorbing strength.

Therefore, the scheme that applicant once proposed is: the peripheral part at electric fan centrifugal fan cover forms exhaust outlet, the gas part that centrifugal fan is discharged and the identical cooling motor that is used in the past, discharge from exhaust outlet then, remaining part does not enter the exhaust loop by motor from the fan guard exhaust outlet.

The design of above-mentioned formation is a ratio of determining the capacity of desirable circulation capacity and main exhaust mouth to the flow impedance of the exhaust channel of main exhaust mouth to the flow impedance and the electric fan of the exhaust loop of cleaner head by the reference electric fan.

But, if the ratio of circulation capacity is established height, then reduce from the air quantity of main exhaust mouth, to be deflated the dust dust-absorbing strength that wind rises not strong though can reduce.So, for the effective dust out that saves time, must increase the capacity of main exhaust mouth, promptly increase dust-absorbing strength.For example in the slit of the using slot first-class occasion of dust suction, if the air exhaust loop flow is too high, the circulation exhaust will blow out from cleaner head, makes and should be dispelled on the contrary by indrawn dust.Should be the capacity that increases the dust collector host exhaust outlet, reduce the air exhaust loop flow and strengthen dust-absorbing strength, when design, the ratio of air exhaust loop flow is made as fixing, so, can't satisfy this user mode.

Therefore, purpose of the present invention is exactly in order to overcome the above problems, and a kind of electric dust collector that can change exhaust circulation ratio as required is provided.

In order to achieve the above object, electric dust collector of the present invention, by electric fan being set and having the dust collector host that flexible pipe inserts mouth, be arranged on and also discharge on the dust collector host from the exhaust outlet of the exhaust of described electric fan, be installed to the flexible pipe on the described flexible pipe insertion mouth, hard tube that is connected with this flexible pipe and the cleaner head that is connected on the hard tube constitute, in dust collector host, be provided with the air exhaust loop circulation flow path that inserts from the air draft circulation of described electric fan to flexible pipe mouthful, simultaneously at the air exhaust loop circulation flow path that is provided with on the described flexible pipe on the air exhaust loop circulation flow path that is connected to described dust collector host; It is characterized by: in described dust collector host, also have adjustment is discharged to the main frame outside from exhaust outlet capacity open and close valve, the air quantity handover operation of described open and close valve and electric fan moves simultaneously, when electric fan switches to the high wind operation, increase the capacity outside exhaust outlet is discharged to dust collector host; When character and conduct is done a little less than electric fan switches to, reduce the capacity outside exhaust outlet is discharged to dust collector host.

In addition, as above-mentioned electric dust collector, open and close valve is made of magnetic valve.

In addition, in above-mentioned electric dust collector, as above-mentioned open and close valve by motor-driven.

In addition, in above-mentioned electric dust collector, the fan guard outlet is set on the fan guard as electric fan, the fan guard outlet is connected to the air exhaust loop circulation flow path.

Below accompanying drawing is carried out simple explanation.

Fig. 1 is the overall structure sectional view of the electric dust collector of the embodiment of the invention.

Fig. 2 is the local amplification view of the main body of dust collector of the foregoing description.

Fig. 3 is the local amplification view of the main body of dust collector of expression the foregoing description effect.

Fig. 4 is the same, the local amplification view of the main body of dust collector of expression the foregoing description effect.

Fig. 5 is the local amplification view of the main body of dust collector of other embodiment of the present invention.

Fig. 6 is the local amplification view of the main body of dust collector of the embodiment effect of the above-mentioned Fig. 5 of expression.

Fig. 7 is the same, represents the local amplification view of main body of dust collector of the embodiment effect of above-mentioned Fig. 5.

Fig. 8 is the local amplification view with the main body of dust collector of another other embodiment of the present invention.

Fig. 9 is the local amplification view of the main body of dust collector of the embodiment effect of the above-mentioned Fig. 8 of expression.

Figure 10 is the same, represents the local amplification view of main body of dust collector of the embodiment effect of above-mentioned Fig. 8.

Figure 11 is the formation of the expression main body of dust collector of another other embodiment of the present invention and the local amplification view of effect.

Figure 12 is the local amplification view of the main body of dust collector of the embodiment effect of the above-mentioned Figure 11 of expression.

Figure 13 is the same, represents the local amplification view of main body of dust collector of the embodiment effect of above-mentioned Figure 11.

Figure 14 is the same, represents the local amplification view of main body of dust collector of the embodiment effect of above-mentioned Figure 11.

Among the figure, the 1-dust collector host, the 2-flexible pipe, 3-connects hard tube, the 4-dust absorption nozzle for floor, 5-electric fan, 6-motor room, 7-control of dust paper bag, the 9-dust storage chamber, 10-trailing wheel, 11-discharge filter, 12-main exhaust mouth, 24-manual operation handle, 25-operating portion, 51-bearing bracket stand exhaust outlet, 52-fan guard exhaust outlet, 61,71, the 91-open and close valve, 64-elasticity hinge, 72-spring, 81-magnetic valve, the A-air suction way, B-exhaust loop, C-exhaust channel.

Below be elaborated with reference to Fig. 1～Fig. 4 with regard to one embodiment of the present of invention.

The ground moving dust catcher that the present invention was suitable for as shown in Figure 1, by dust collector host (1), flexible pipe (2), connect hard tube (3) and dust absorption nozzle for floor formations such as (4).

In dust collector host (1), be provided with motor room (6) that electric fan (5) are housed and the dust storage chamber (9) that constitutes by dust collecting paper bag (7) and micronic filter (8).

In the trailing wheel (10) that install dust collector host (1) both sides, form one cooling off electric fan (5) inner motor drive division (not shown) and will passing through the exhaust outlet (12) of discharge filter (11) row again from the exhaust that bearing bracket stand exhaust outlet (51) is discharged to the outside.

And, the part of dust collector host (1), flexible pipe (2), connect hard tube (3), and the exhaust channel of dust absorption nozzle for floor (4) have duplex, each parts are interconnected, and form air suction way (A) and exhaust loop (B) respectively.

That is: in the dust storage chamber (9) of dust catcher (1) and the bottom of motor room (6), form wind that a handle discharges from the fan guard exhaust outlet (52) of electric fan (5) and make the exhaust loop (B) of its circulation by the interconnecting part (13) of fan guard exhaust outlet (52) below, this exhaust loop (B) is connected with hose transition (20) formation in the flexible pipe insertion mouth (14) that is contained in dust collector host (1) by interconnecting part (15).

In the above-mentioned hose transition (20), tube connector (20a) wherein, (20b) be concentrically ringed dual structure, the two ends that form the inboard tube connector (20a) of air suction way (A) become standing shape, the one end inserts the access portion (7a) of paper bag (7), and the exhaust loop (B) that is made of the tube connector (20b) in the outside is communicated with exhaust loop (B) formation of above-mentioned main frame (1) one side by connecting portion (15) simultaneously.

Above-mentioned tube connector (20a), the other end (20b) is connected with the dual structure flexible pipe (2) that is made of flexible pipe inboard (2a) and the flexible pipe outside (2b).The other end of flexible pipe (2), (24b) is connected with manual operation handle (24) by tube connector (24a) with above-mentioned the same manner.On above-mentioned manual operation handle (24), be provided with the operating key (25) of the change-over switch etc. of the strong and weak running of control electric fan (5) (dust suction power).

Connect hard tube (3,3) respectively by for example, form the inboard cylindrical portion (3a) of analysing and observe air suction way (A) and constitute with the formed outside cylindrical portion (3b) that covers inboard cylindrical portion (3a) simultaneously and form exhaust loop (B) of this inboard cylindrical portion (3a) and top one for circle.

In addition, electric fan (5) is made of motor section (5a) and blower fan portion (5b), the motor driving part that is made of not shown stator and rotor in the motor section (5a) places in the bearing bracket stand (53), is provided with the foregoing bearing bracket stand exhaust outlet (51) that air behind the cooling motor drive division is discharged in this bearing bracket stand (53).

Blower fan portion (5b) is made of not shown centrifugal fan and air inlet, and places in the fan guard (54).Periphery at fan guard (54) is provided with several equally spaced substantially fan guard exhaust outlets (52) respectively for a part of wind in the centrifugal fan is discharged.Remaining gas then drains in the bearing bracket stand (53) by air inlet motor driving part is cooled off, and arranges to the outside by bearing bracket stand exhaust outlet (51) then.

Present embodiment is to go up in the exhaust channel (C) of formed exhaust outlet (12) at the trailing wheel (10) that will be imported to by the gas of above-mentioned bearing bracket stand exhaust outlet (51) in main body (1) both sides, is provided with the open and close valve (61) that opens and closes exhaust channel (C) corresponding to the negative exhaust pressure of discharging from electric fan (5).

Above-mentioned open and close valve (61) is linked to each other by top and the baffle plate (63,63) that extends into two walls (62) of exhaust channel (C) constitutes, the resistant to bending characteristic of direction that the root of each baffle plate (63) utilizes polypropylene vertically to arrange at its molecule adopts the elasticity hinge (64) that claims PP (polypropylene) hinge to connect, and it is static for closing the state of exhaust channel (C) under the effect of elasticity hinge (64) to be designed to this open and close valve (61), opens corresponding to the negative exhaust pressure of electric fan (5).

As mentioned above, the air exhaust loop streaming dust catcher of Gou Chenging in use like this, because the graviational interaction of electric fan (5), the air that is mixed with dust from cleaner head (4) sucks sucks in the main frame (1) of dust catcher by the air suction way (A) that connects hard tube (3), the air suction way (A) of flexible pipe (2).Remove thick dirt by paper bag (7) in main frame (1), remove micronic dust by micronic filter (8) again, cleaned air passes is inhaled into electric fan (5).

Air from electric fan (5) discharge, wherein a part is discharged from by the fan guard exhaust outlet (52) on the fan guard (54), is circulated to the exhaust loop (B) of exhaust loop (B), connection hard tube (3) of exhaust loop (B), the flexible pipe (2) of dust collector host (1) bottom to cleaner head (4) formation circulation by interconnecting part (13) again.At the dust suction head, the dust that is blown afloat by this part gas together is inhaled into the circulation that the air suction way (A) that is connected hard tube (3) carries out next time once more with the new outer gas that sucks.

The air of remaining part is imported in the bearing bracket stand (53) that motor driving part is housed, and finishes discharging from bearing bracket stand exhaust outlet (51) after the cooling of motor driving part.

Here, under the situation a little less than the dust-absorbing strength, when just operated key (25) electric fan by the manual operating handle portion of operation (24) is set to weak wind, as shown in Figure 3:

That is: electric fan (5) in weak when running because the negative exhaust pressure of electric fan (5) is low, be arranged on open and close valve (61) closure of exhaust channel (C), the exhaust of bearing bracket stand exhaust outlet (51) can not be discharged from main exhaust mouth (12), and the exhaust of electric fan this moment (5) is 100% recurrent state.Because the exhaust outlet (12) of main frame does not have air to discharge, also the dust that just can not take place on floor or the carpet is deflated the situation that wind rises.

Otherwise, under the strong situation of dust-absorbing strength, just using the occasion of slit with narrow mouth cleaner head, the operated key (25) by operating manual operating handle portion (24) is electric fan (5) when being set to high wind, as shown in Figure 4.

When electric fan (5) during in strong running, because the negative exhaust pressure of electric fan (5) uprises, the open and close valve (61) that is arranged on exhaust channel (C) is opened.The exhaust of bearing bracket stand exhaust outlet (51) is discharged from main exhaust mouth (12), and can only circulate this moment to the portion of air of discharging from fan guard exhaust outlet (52).So, even under the state of high wind running, recyclegas can not blow out from the first-class suction port advantage of narrow mouth dust suction yet, the suction gas flow of this moment be the circulating exhaust amount in addition only with from main exhaust mouth (12) row to the capacity of outside suitable outer gas, so, under the relatively low condition of the capacity of main frame outside, can obtain bigger dust-absorbing strength row.Like this, under the occasion of using such as narrow mouth cleaner head, promptly there is not powerful exhaust wind to go out again, particularly effective when strong dust-absorbing strength is arranged again.

According to above present embodiment, owing to adopted the open and close valve (61) of elasticity hinge (64), not increase the simple structure of other number of parts, just can realize with respect to the negative exhaust pressure of electric fan (5) and change the air exhaust loop streaming dust catcher of capacity automatically.

Fig. 5～Fig. 7 is the schematic diagram that belongs to other embodiments of the invention, the part that the symbolic representation identical with the above embodiments is same or suitable.

Identical with the basic point of the above embodiments, the open and close valve that opens and closes corresponding to the negative exhaust pressure of electric fan (5) promptly is set, but is to locate to be provided with the open and close valve (71) that uses spring (74) in the present embodiment at the peristome (70) of exhaust channel (C).

This open and close valve (71) by the baffle plate (73) that opens and closes exhaust channel (C) peristome (70) and form the spring base (75) of one with it and itself and peristome (70) edge between the spring (74) of packing into constituted.

Such formation and the above embodiments are same, open and close valve (71) closure as shown in Figure 6 in a little less than dust-absorbing strength, when dust-absorbing strength is strong as shown in Figure 7 open and close valve open, identical with the resulting effect of the above embodiments, and the mode of spring (74) has the advantage that is easy to adjust elastic force.

Fig. 8～Figure 10 is the schematic diagram that belongs to another embodiment of the present invention, and the symbol identical with the above embodiments represented same or suitable part.

Present embodiment is provided with the magnetic valve that is used to open and close exhaust channel (C) (81) with the strong and weak change-over switch interlock of turning round of the electric fan (5) on the operating portion (25) of manual operation handle (24).

The structure of this magnetic valve (81) is, the magnetic valve that is used for opening and closing at exhaust channel (C) is provided with the choke body (83) that the air vent (82) that forms is gone up by portion (80), by spring (84) its static state for the obstruction air vent is set, when strong running, coil (85) produces magnetic force by electric current, and this magnetic force makes choke body (83) move towards the direction that the person opens air vent (82) with the direction of bounce-back spring (84) power.

Such structure, the same with the above embodiments, when a little less than the dust-absorbing strength, as shown in Figure 9, magnetic valve (81) cuts out, when dust-absorbing strength was strong, as shown in figure 10, magnetic valve was opened, obtain same effect with preceding embodiment, and do not rely on negative pressure, owing to open and close simultaneously, guaranteed that on-off action is reliable on time with strong and weak change-over switch.

And, in the above-described embodiments, though be that magnetic valve (81) and strong and weak running change-over switch are set at combined operation, also can be independent the console switch of magnetic valve, be arranged on the operation keyboard (25) of manual operation handle portion (24).

Such formation, because irrelevant with dust-absorbing strength, the user can change capacity according to the hobby of oneself.For example, in the family that has allergic constitution etc. to the people of dust allergy, can not allow usually from exhaust outlet (12) air draft of main frame.The family that and for example is not afraid of dust allergy can pay the utmost attention to its strong dust-absorbing strength.In a word, realized to provide according to user's needs the air exhaust loop streaming dust catcher of corresponding state.

Figure 11～Figure 14 is the schematic diagram that belongs to another other embodiment of the present invention, and the symbol identical with the above embodiments represented identical or suitable part.

Present embodiment is in the peristome (90) on exhaust channel (C) motor-driven open and close valve (91) to be set.

This open and close valve (91) is installed on the rotating shaft (93) of the motor (92) that can intermittently also can determine the position continuously, as shown in figure 11, peristome when being positioned at level (90) is closed fully, as Figure 12, shown in Figure 13, peristome when being positioned at heeling condition (90) is half-open position, as shown in figure 14, and peristome complete opening when being positioned at plumbness.Drive motors (92) can intermittently be realized with the operated key or the operation handlebar of running continuously by be provided with one on the operation keyboard (25) on the manual operation handle portion (24).

Its effect of such formation is identical with the above embodiments, in the time of promptly a little less than dust-absorbing strength as shown in figure 11 open and close valve (91) close fully, when dust-absorbing strength is strong as shown in figure 14 open and close valve (91) open fully, can obtain the action effect same with preceding embodiment.In addition, as shown in figure 12, making open and close valve (91) be half-open position in the time of a little less than dust-absorbing strength can make dust-absorbing strength increase, and for example shown in Figure 13, when dust-absorbing strength is strong, make open and close valve (91) thus being half-open position can make dust-absorbing strength reduce to make the exhaust wind of main exhaust mouth (12) to weaken, therefore, it can adapt to more kinds of user modes than the foregoing description.

Each above embodiment all is to be the explanation that example is carried out the present invention with the occasion that is applicable to floor mobile type electric dust catcher.The present invention is not limited only to this, and for example the direct-connected vertical type dust collector of cleaner head and main frame is applicable equally.

In sum, according to the present invention,, can according to circumstances change the ratio of air exhaust loop flow owing to the circulation capacity and the guiding mechanism of directly discharging the capacity ratio of dust collector host by exhaust channel that are provided with in adjusting the exhaust loop.

Capacity guiding mechanism as above-mentioned is provided with the open and close valve that opens and closes exhaust channel corresponding to the negative exhaust pressure of electric fan, can realize changing automatically corresponding to the negative exhaust pressure of electric fan the air exhaust loop streaming dust catcher of capacity with simple structure.

Above-mentioned open and close valve is designed under the effect of elasticity hinge it and staticly is closed exhaust channel status, opens corresponding to the negative exhaust pressure of electric fan, can realize with very simple structure under the condition that does not increase other part.

Above-mentioned open and close valve is designed under the effect of spring it and staticly is closed exhaust channel status, opens corresponding to the negative exhaust pressure of electric fan, and such structure has the advantage that is easy to adjust elastic force.

As above-mentioned capacity guiding mechanism, be provided with the magnetic valve that is used to open and close exhaust channel with the interlock of the power of electric fan running change-over switch, it is not subjected to pay the influence of pressing, and opens and closes simultaneously with power running handover operation, has guaranteed the punctual reliable of on-off action.

As above-mentioned capacity guiding mechanism, be provided with magnetic valve that opens and closes exhaust channel and the operating portion that drives this magnetic valve, thereby realized to adapt to the air exhaust loop streaming dust catcher of the user mode that the user wishes.

As above-mentioned capacity guiding mechanism, be provided with the variable magnetic valve of exhaust channel switching degree, thereby can adapt to more various user mode.

Claims

1. electric dust collector, by electric fan being set and having dust collector host that flexible pipe inserts mouthful, be arranged on the dust collector host and discharge exhaust outlet, be installed to flexible pipe, the hard tube that is connected with this flexible pipe that described flexible pipe inserts mouthful and the cleaner head that is connected on the hard tube constitutes from the exhaust of described electric fan, in dust collector host, be provided with the air exhaust loop circulation flow path that inserts from the air draft circulation of described electric fan to flexible pipe mouthful, simultaneously at the air exhaust loop circulation flow path that is provided with on the described flexible pipe on the air exhaust loop circulation flow path that is connected to described dust collector host; It is characterized by: in described dust collector host, also have adjustment is discharged to the main frame outside from exhaust outlet capacity open and close valve, the air quantity handover operation of described open and close valve and electric fan moves simultaneously, when electric fan switches to the high wind operation, increase the capacity outside exhaust outlet is discharged to dust collector host; When character and conduct is done a little less than electric fan switches to, reduce the capacity outside exhaust outlet is discharged to dust collector host.

2. the described electric dust collector of claim 1, it is characterized by: above-mentioned open and close valve is made of magnetic valve.

3. the described electric dust collector of claim 1 is characterized by: as above-mentioned open and close valve by motor-driven.

4. the described electric dust collector of claim 1, it is characterized by: the fan guard outlet is set on the fan guard as above-mentioned electric fan, and the fan guard outlet is connected to the air exhaust loop circulation flow path.