CN1377626A

CN1377626A - Vacuum cleaner

Info

Publication number: CN1377626A
Application number: CN01135474.7A
Authority: CN
Inventors: 恩田雅一; 北村秀典; 石川诚治; 津崎保则; 藤原保史; 奥岛雅史; 野町哲治
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2001-03-29
Filing date: 2001-10-12
Publication date: 2002-11-06
Also published as: JP3528807B2; JP2002291660A

Abstract

A vacuum cleaner, an exhaust port cover (102) is provided on the exhaust port of a vacuum cleaner main body (101). The exhaust port cover (102) opens larger when the air volume of the exhaust is larger. When the vacuum cleaner operates with a large exhaust air volume, due to the large opening degree of the exhaust port cover (102), sufficient air intake air volume can be ensured to obtain high suction force. When the vacuum cleaner is running at a low air volume, since the opening degree of the exhaust port cover (102) is small, the noise inside the vacuum cleaner is more easily emitted to the outside, thereby reducing the noise.

Description

Dust catcher

Technical field

The present invention relates to a kind of dust catcher, the pump-down process of described dust catcher is: the dust in will be by the dust-laden that electric blowing machine attracts air-breathing filters control of dust with dust arrester, dust is being separated discharge exhaust by electric blowing machine the back to main body outside or is backflowing to suction unit to the part of the exhaust of major general's discharge.

Background technology

Figure 16-Figure 18 represents an example of dust catcher in the past.Electric blowing machine 2 in the main body of dust collector 1 attracts air by flexible pipe 9, prolongation pipe 30 and suction fitting 35, and collects the airborne dust of attraction with the dust-collecting filter in the main body 14.Discharged, discharge to the outside from the exhaust outlet 18 of main body 1 by filter 16 then by outlet 2a by electric blowing machine 2 with dust-collecting filter 4 cleaned air passes from electric blowing machine 2.

Figure 19 represents an example of exhaust flow path structure.The length of the exhaust flow path at electric blowing machine 2 rears is increased and exhaust outlet 58 is arranged at the top, rear portion of main body 1.Make sound attenuation by the length that increases exhaust flow path, and by carrying out exhaust, can prevent flying upward of rubbish on the ground from top, main body 1 rear portion.But, as if the higher inhalation power that will guarantee when maximum quantity of wind, just must increase the breathing area of exhaust outlet 58, and reduce the pressure loss of exhaust flow path.If the breathing area of exhaust outlet 58 is increased, then the noise of electric blowing machine 2 is sent, also produced and make the phenomenon that rubbish flies upward on the ground to the outside exhaust time easily.

For solving above-mentioned problem in the past, the objective of the invention is to; A kind of dust catcher is provided, and described dust catcher has more high-suction performance, realize low noiseization and can prevent on the ground that rubbish disperses and easy to use.

Summary of the invention

In order to achieve the above object, dust catcher of the present invention has the main body of built-in electric blowing machine and attracts the suction fitting of dust, to the outside main body exhaust outlet of discharging of main body opening and closing device be set in the exhaust that will produce by electric blowing machine, described opening and closing device when the air quantity of exhaust or blast increase to opening the side action, when the air quantity of exhaust or blast reduce, moving to closing side.Thus, dust catcher of the present invention, when turning round, can guarantee to have enough air-breathing air quantity with maximum quantity of wind, obtain high inhalation power, simultaneously, when turning round with low air quantity, can make main body exhaust outlet and capacity, be inspiratory capacity interlock and exhaust flow path is narrowed down, make the noise of electric blowing machine be difficult to send thus, noise is diminished to the main body outside.

Description of drawings

Fig. 1 is the stereoscopic figure of the dust catcher of the present invention the 1st embodiment.

Fig. 2 (a) is near the phantom of the structure of exhaust outlet of this dust catcher of expression.

Fig. 2 (b) is the B portion enlarged drawing of Fig. 2 (a).

Fig. 3 is the integrally-built cutaway view of this dust catcher.

Fig. 4 is near the phantom of the structure exhaust outlet of dust catcher of expression the present invention the 2nd embodiment.

Fig. 5 (a) is the C portion enlarged drawing of Fig. 4.

Fig. 5 (b) is the part amplification view of other structures of the vent cap of this dust catcher of expression.

Fig. 6 is the partially cut-away side view that the rear portion is arranged on ground erectility of this dust catcher of expression.

Fig. 7 is the D portion enlarged drawing of Fig. 6.

Fig. 8 is near the phantom of the structure exhaust outlet of dust catcher of expression the present invention the 3rd embodiment.

Fig. 9 (a) is near the phantom of the structure exhaust outlet of the exhaust outlet lid of the dust catcher of expression the present invention the 4th embodiment when being in closed condition.

Fig. 9 (b) is the diagrammatic sketch of the vent cap of pie graph 9 (a) when being in open mode.

Figure 10 (a) is near the phantom of other structures the exhaust outlet of vent cap when being in closed condition of this dust catcher of expression.

Figure 10 (b) is the vent cap that constitutes Figure 10 (a) diagrammatic sketch when being in open mode.

Figure 11 is near the cutaway view of the structure exhaust outlet of dust catcher of expression the present invention the 5th embodiment.

Figure 12 is the stereoscopic figure of the dust catcher of expression the present invention the 6th embodiment.

Figure 13 is the partially cut-away side view of other examples of this dust catcher.

Figure 14 is the phantom of other examples of this dust catcher.

Figure 15 is the F portion enlarged drawing of Figure 14.

Figure 16 is the stereoscopic figure of dust catcher in the past.

Figure 17 is the cutaway view of this dust catcher.

Figure 18 is near the phantom of the structure of exhaust outlet of this dust catcher of expression.

Figure 19 is near the phantom of other structures of the exhaust outlet of this dust catcher of expression.

The specific embodiment

(the 1st embodiment)

Below, in conjunction with Fig. 1 and Fig. 2, the 1st embodiment of the present invention is described.The overall structure of dust catcher since with in the past dust catcher identical Therefore, omited explanation.

Fig. 2 (a) is near the phantom of exhaust outlet of the dust catcher of presentation graphs 1.Fig. 2 (b) is the B portion enlarged drawing in Fig. 2 (a).

As Fig. 1 and Fig. 2 (a) (b) shown in, main body of dust collector 101 has electric blowing machine 120, discharge filter 104, exhaust outlet 101a and is rotatably mounted, covers the vent cap 102 of exhaust outlet 101a around axle 103.When the console switch 151 of flexible pipe 150 ends that are connected with main body 101 was connected, electric blowing machine 120 became operating condition and attracts air.Collected by the dust-collecting filter in the dust storage chamber in electric blowing machine 120 the place aheads (not shown) by the dust that electric blowing machine 120 is attracted with air.Use the dust-collecting filter cleaned air passes, the exhaust outlet 120a from electric blowing machine 120 discharges by electric blowing machine 120, and the exhaust outlet 101a from main body 101 after by discharge filter 104 fine dust contained in the exhaust being filtered again discharges to the outside.At this moment, cover the vent cap 102 of exhaust outlet 101a, be subjected to exhaust fixed blast and the foreign side that is pushed to main body 101 rotates around axle 103, move to the position of 102b, open exhaust outlet 101a.From the exhaust of exhaust outlet 101a discharge, along the parallel earthward or top discharge to the guide part of (by the rear end, being tilted to oblique upper more more) obliquely upward by the rear end.Along with the control of dust quantitative change in the dust storage chamber (not shown) is many, owing to increase by the air-breathing resistance of dust storage chamber, the air-breathing air quantity of electric blowing machine 120 reduces.Along with air-breathing air quantity reduces, reduce owing to pass through the air of the fan (not shown) of electric blowing machine 120, so being subjected to the resistance of air, reduces by fan.The load that is electric blowing machine 120 reduces, and the rotating speed of electric blowing machine 120 increases and the noise increase.But, owing to minimizing, make vent cap 102 utilize the angle of EXO exhaust outlet to reduce by air-breathing air quantity and exhaust air quantity, so can make the Rotation Noise of electric blowing machine 120 be difficult to send, therefore, can obtain the sound that quietly turns round to the outside of main body 101.

The dust catcher of Fig. 3 has: main body 101, flexible pipe 150, prolongation are managed 134, are made at the air suction way 136 of suction fitting 135 to the inspiratory flow of electric blowing machine 120, and make the exhaust channel 137 from the exhaust flow of electric blowing machine 120.The dust that electric blowing machine 120 attracts by air suction way 136 by in the dust-collecting filter 138 that is located in the dust storage chamber (not shown) in electric blowing machine 120 the place aheads collect.With dust-collecting filter 138 cleaned air passes, backflow near the air entry 139 of suction fitting 135 by exhaust channel 137.In main body 101, have: in the exhaust outlet 120a that airtight shape ground is communicated with electric blowing machine 120 and the main body exhaust channel 160 and cover electric blowing machine 120 peripheries lid 121, be formed on the lid 121, make lid 121 inner with the exhaust outlet 121a of main body 101 internal communication, valve body 123 and the drive motor 122 of switching exhaust outlet 121a.Drive motor 122 drives valve body 123 to open and close exhaust outlet 121a.When valve body 123 is opened the exhaust outlet 121a of lid 121, discharge to main body 101 inside by the exhaust behind the electric blowing machine 120.Be provided with vent cap shown in Figure 2 102 at main body 101 rear portions.The pressure at expulsion that increases, causes because of the blast of exhaust when the air quantity of exhaust becomes setting when above, vent cap 102 because of exhaust by position from 102b to the foreign side of main body 101 that release and move to, open exhaust outlet 101a.When valve body 123 is closed the exhaust outlet 121a of lid 121,, backflow near the air entry 139 of suction fitting 135 by lid 121, main body exhaust channel 160 and exhaust channel 137 from the exhaust that the exhaust discharge portion 120a of electric blowing machine 120 discharges.Therefore, do not come the exhaust of autonomous agent 101, vent cap 102 is being closed.

As mentioned above, when exhaust outlet 121a opens, discharge from main body 101, can guarantee enough air-breathing air quantity and obtain high inhalation power by making the many exhausts of air quantity of backflowing of its amount.When exhaust outlet 121a closes, utilize backflowing of exhaust, can obtain not have the quiet running of exhaust, can not produce sweeping of cleaning that dust disperses.And, from main body 101 to the having or not of outside exhaust, be that dust catcher is in the state with high inhalation power or is in the exhaust gas recirculation state, owing to can recognize, so the dust catcher usability of present embodiment is good from the switching of vent cap 102.In addition, in the present embodiment,,, also can obtain to make the synchronized effect of switching of valve body 123 and vent cap 102 by the part of this two part of other connection is set though valve body 123 and vent cap 102 are moved respectively.

(the 2nd embodiment)

Below, in conjunction with Fig. 4-Fig. 7 the 2nd embodiment of the present invention is described.In addition, to omitting its explanation with the identical parts of last embodiment.Fig. 4 is near the phantom of exhaust outlet of the dust catcher of expression the present invention the 2nd embodiment, and Fig. 5 (a) is the C portion enlarged drawing of Fig. 4.

Have discharge filter 104 and exhaust outlet 101a at the rear portion of main body 101.Has the wall 106 that surrounds exhaust outlet 101a in the outside of exhaust outlet 101a.Wall 106 is opening and constitute the exhaust guide part upward.

Shown in Fig. 5 (a), be provided with vent cap 105 rotationally around axle 103, vent cap 105 can open and close the peristome (below, be called the main body exhaust outlet) of wall 106 tops.Axle 103 is installed on the main body 101, and is configured in the below of vent cap 105 the other end.Therefore, the deadweight of vent cap 105 acts on the direction that makes the main body exhaust close.When the blast from the exhaust of exhaust outlet 101a becomes setting when above, vent cap 105 is pushed open upward because of the blast of exhaust, exhaust along wall 106 by the outside top of row to main body 101.Fig. 5 (b) is another structure example of vent cap.Vent cap 105 is housed inside scope inside that wall 106 encloses in the dead astern of exhaust outlet 101a.Fig. 6 represents the rear portion of main body 101 is arranged at ground user mode, and Fig. 7 is the D portion enlarged drawing of Fig. 6.As shown in Figure 7, rear portion 140a, the 140b of main body 101 is arranged on the ground of small space of stair etc.The axle of vent cap 105 103 as shown in Figure 5 owing to be installed on the main body 101 and be configured in the below, the other end of vent cap 105, so even under the state of Fig. 7, the deadweight of vent cap 105 also acts on the direction that makes the main body exhaust close.Because the discharge direction of exhaust is towards the top of main body 101, so can carry out not producing sweeping of cleaning that rubbish disperses because of exhaust.And, because that the stream that surrounds foreign side, the discharge exhaust of exhaust outlet 101a with wall 106 makes is longer, so can make with exhaust by the sound attenuation of the running sound of the electric blowing machine 120 of emitting etc. to main body 101 outsides.In addition, along with the control of dust amount of dust storage chamber (not shown) increases, owing to increase by the air-breathing resistance of dust storage chamber, so the air-breathing air quantity minimizing of electric blowing machine 102.And, along with air-breathing air quantity reduces,,, fan reduces so being subjected to the resistance of air owing to reduce by the air in the fan of electric blowing machine 102.That is to say, the load that electric blowing machine 102 is subjected to reduces, the rotating speed of electric blowing machine 102 increases and noise is uprised, but because by reducing the angle minimizing that air-breathing air quantity, exhaust air quantity and exhaust blast make vent cap 105 open the main body exhaust outlet because of exhaust, so can make the rotation sound of electric blowing machine be difficult for emitting the outside of main body 101.Therefore, can obtain more quiet running sound.

Again because the deadweight of vent cap 105 acts on the direction that makes the main body exhaust close as previously mentioned, so be not with exhaust from the occasion of main body 101 to the operation mode of outside discharge, vent cap 105 is closed condition.Therefore, rear portion 140a, the 140b of main body 101 can be arranged under the ground state of small space of stair etc. and be kept, and can carry out not producing sweeping of cleaning that rubbish disperses because of exhaust.And, can obtain quietly to turn round sound.

(the 3rd embodiment)

Below, in conjunction with Fig. 8 the 4th embodiment of the present invention is described.In addition, the part identical with front embodiment omitted its explanation.

Among Fig. 8, has the wall 106 that surrounds exhaust outlet 101a in the outside of the exhaust outlet 101a of main body 101.Wall 106 is opening upward.The vent cap 105 that opens and closes the peristome of wall 106 tops is configured to and can rotates around axle 103.Vent cap 105 has the aerofoil of being subjected to 105a in the wall 106 of exhaust outlet 101a.Be subjected to aerofoil 105a, when vent cap 105 is opened upward because of exhaust, the rotatory force of vent cap 105 strengthened.Thus, vent cap 105 is opened more upward.Its result, can make the discharge direction of exhaust towards the top of main body 101, and can carry out not producing sweeping of cleaning that rubbish disperses because of exhaust.

(the 4th embodiment)

Below, in conjunction with Fig. 9, Figure 10 the 4th embodiment of the present invention is described.In addition, the part identical with front embodiment omitted its explanation.

The vent cap 108 of Fig. 9 (a) has discharge filter 104 and exhaust guide part 108a.The state of the no exhaust of Fig. 9 (a) expression, exhaust guide part 108a closes the exhaust outlet 101a of main body 101.Fig. 9 (b) expression has the state of exhaust, and the pressure that vent cap 108 is passed through the exhaust of discharge filter 104 pushes and rotates to the direction of exhaust outlet 101a, and exhaust guide part 108a opens exhaust outlet 101a.Exhaust is discharged from by exhaust outlet 101a.The exhaust outlet 101a of the main body 101 of Figure 10 (a) has the 101b of grid portion, and vent cap 110 has the 110a of grid portion.The state of the no exhaust of Figure 10 (a) expression, the 110a of grid portion closes the exhaust outlet 101a of main body 101.Figure 10 (b) expression has the state of exhaust, and the pressure that vent cap 110 is deflated pushes and rotates to foreign side, and the 110a of grid portion opens exhaust outlet 101a.Exhaust is discharged from by the gap 110b between exhaust outlet 101a and the 110a of grid portion.Along with the control of dust amount of dust storage chamber increases, owing to increase by the air-breathing resistance of dust storage chamber, so the air-breathing air quantity minimizing of electric blowing machine 102.And along with air-breathing air quantity reduces, owing to reduce by the air in the fan of electric blowing machine 102, fan reduces because of the resistance that is subjected to air.That is to say that the load that electric blowing machine 102 is subjected to reduces.Though the rotating speed of electric blowing machine 102 increases and noise is increased, but because by reducing the angle minimizing that air-breathing air quantity and exhaust air quantity make vent cap 110 open exhaust outlet 101a because of exhaust, so can make the rotation sound of electric blowing machine 102 be difficult to emit the outside of main body 101.Therefore, can obtain the sound that quietly turns round.

(the 5th embodiment)

Below, in conjunction with Figure 11 the 5th embodiment of the present invention is described.In addition, the part identical with front embodiment omitted its explanation.

Among Figure 11, has the wall 106 that surrounds exhaust outlet 101a in the outside of exhaust outlet 101a.Wall 106 is opening upward.But the vent cap 105 that opens and closes wall 106 top peristomes is configured to winding rotates at the axle 103 of wall 106 sides.Vent cap 105 has the 105b of lid in two sides.Exhaust is flowed between the lid 105b of two sides.Be deflated pushing and when rotating upward, cap 105b is outstanding from the top peristome in vent cap 105, make exhaust flow path form highlyer and exhaust flow path is prolonged than wall 106.Thus, the discharge direction that can make exhaust is towards the top of main body 101, and can carry out not producing sweeping of cleaning that rubbish disperses because of exhaust.Prolong simultaneously the sound attenuation of the running sound that can make electronic air feeder 102 etc. because of exhaust flow path.

(the 6th embodiment)

Below, in conjunction with Figure 12-Figure 15 the 6th embodiment of the present invention is described.In addition, the part identical with front embodiment omitted its explanation.

Among Figure 12, on the exhaust cap 105 at main body 101 rear portions, be provided with the graduation apparatus 105c of the amount of spin of the described vent cap 105 of expression.Figure 13 is arranged on example on main body 101 end faces with vent cap 105.When the control of dust amount of main body 101 increases, suck the minimizing of air quantity and exhaust air quantity and the amount of spin of vent cap 105 is reduced.The user recognizes the scale 105c of exhaust cap 105, just knows the reduction that sucks air quantity, is that rubbish should be abandoned period in the reduction of inhalation power and the dust storage chamber, improves usability.In Figure 14 and Figure 15, be provided with in the dead astern of vent cap 105 by what the blade 111b of the mobile vibration that utilizes exhaust and ventilating part 111a constituted and blow a whistle 111, when because the control of dust amount increases, air-breathing exhaust air quantity reduces the amount of spin of vent cap 105 buy when getting off less, wind speed in the exhaust of 111 internal flows of blowing a whistle increases, make blade 111b vibration, just cause and ring.Thus, the user knows that with sense of hearing the reduction of inhalation power and the rubbish in the dust storage chamber should abandon period, further improves usability.

Claims

1. A vacuum cleaner having a main body with a built-in electric blower and a suction member for attracting dust, characterized in that an opening is provided on the main body exhaust port that discharges the exhaust gas generated by the electric blower from the main body to the outside of the main body. A closing device, the opening and closing device moves to open when the air volume of the exhaust gas increases, and moves to the closed side when the air volume of the exhaust air decreases.

2. A vacuum cleaner having a main body with a built-in electric blower and a suction member for attracting dust, characterized in that an opening is provided on the main body exhaust port that discharges the exhaust gas generated by the electric blower of the main body to the outside of the main body. The opening and closing device moves to the opening side when receiving the wind pressure of the exhaust gas, and moves to the closing side when receiving the wind pressure of the exhaust gas decreasing.

3. The vacuum cleaner according to claim 1 or 2, characterized in that, the vacuum cleaner has a main body with a built-in electric blower and a suction piece for attracting dust, and the main body and the suction piece have an air suction unit that communicates with the motor fan. passage and an exhaust passage for returning at least part of the exhaust gas discharged from the electric blower to the suction side; on the main body, there is an exhaust discharge part and the main exhaust passage of the electric blower airtightly communicated with each other, and covers A cover on the outer periphery of the electric blower and an exhaust outlet formed on the cover that connects the interior of the cover with the interior of the main body; and an opening and closing device for opening and closing the exhaust outlet is provided.

4. The vacuum cleaner according to claim 3, wherein an opening and closing device for alternatively opening and closing the exhaust outlet is provided.

5. The vacuum cleaner according to claim 1 or 2, wherein an opening and closing device is provided at the exhaust port of the main body, and when the exhaust gas is not discharged from the exhaust port of the main body, the opening and closing device is operated by its own weight. closure.

6. The vacuum cleaner according to claim 5, characterized in that, the structure is such that when the running device of the main body and/or the rear part of the main body are placed on the ground for operation, the exhaust port of the main body can also be opened. The opening and closing device remains closed.

7. The vacuum cleaner according to claim 1 or 2, characterized in that an exhaust guide is provided on the main body, and when the opening and closing device of the exhaust port of the main body is opened, the exhaust air can be roughly parallel to the ground or The state of being discharged approximately parallel upwards.

8. The vacuum cleaner according to claim 1 or 2, characterized in that, on the exhaust port cover as the opening and closing device for opening and closing the exhaust port of the main body, a device for receiving exhaust gas on the upstream side of the exhaust port is provided. The wind department.

9. The vacuum cleaner according to claim 8, wherein the receiving surface of the wind receiving portion is configured to be substantially perpendicular to the flow of the exhaust gas or inclined to the flow side of the exhaust gas.

10. The vacuum cleaner according to claim 1 or 2, wherein a filter having ventilation pressure loss is provided on an exhaust port cover as an opening and closing device for opening and closing the exhaust port of the main body.

11. The vacuum cleaner according to claim 1 or 2, wherein the exhaust port of the main body has a grid-shaped portion, and the grid-shaped portion is also provided on the exhaust port cover as an opening and closing device for opening and closing by exhaust wind. And the vent portion, when the vent cover is closed, the vent port of the main body is closed by the lattice-shaped portion of the vent cover.

12. The vacuum cleaner according to claim 11, wherein when the exhaust port cover is closed, the vent portion of the exhaust port cover is closed by the lattice-shaped portion of the main body exhaust port.

13. The vacuum cleaner according to claim 2, wherein at the main body exhaust port that discharges the exhaust gas generated by the electric blower to the outside of the main body, the air pressure of the exhaust gas is opened when the wind pressure of the exhaust gas exceeds a predetermined value, and becomes a predetermined value. In the following, the opening and closing device that operates toward the closing side is provided with a display unit that displays the amount of dust collected in the dust collection chamber of the dust sucked by the suction.

14 . The vacuum cleaner according to claim 7 , wherein the exhaust port cover takes the rear end side of the exhaust guide part as a rotation axis, and performs opening and closing action upward of the rotation axis. 15 .

15. The vacuum cleaner according to claim 1 or 2, characterized in that, a cover portion is provided on one side in the opening and closing direction of the exhaust port cover opposite to the main body exhaust port, and a cover portion is provided on the exhaust port. When the cover is opened, the cover portion protrudes from the main body exhaust port.

16. The vacuum cleaner according to claim 1 or 2, wherein a whistle structure is formed on the vacuum cleaner to sound when the opening amount of the exhaust port cover for opening and closing the main body exhaust port is small.