CN1075136C

CN1075136C - Automatic washing machine

Info

Publication number: CN1075136C
Application number: CN94106264A
Authority: CN
Inventors: 见城好丰; 藤井裕幸; 太田文夫; 中野美喜男
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 1993-06-24
Filing date: 1994-05-31
Publication date: 2001-11-21
Anticipated expiration: 2014-05-31
Also published as: JPH078680A; KR100238936B1; CN1097822A; JP3198730B2; KR950001000A

Abstract

A pulsator 2 is rotatably arranged on the bottom surface of a washing tank 3 which also works as a dehydrating tank 3, and a plurality of independent water circulating passages 7 are formed from a pump chamber 9. Opening parts 10 are formed by opening the tops of the plurality of water circulating passages 7, and a shower nozzle 11 is respectively provided at the opening parts 10. The shower nozzles 11 are constituted in such a manner that the leading ends of a washing liquid being discharged from a plurality of shower nozzles 11 by the rotation of the pulsator 2 may be crossed at approx. the center of the washing tank 3 which also works as a dehydrating tank, therefore the invention can reduce an unevenness in washing by pouring a washing liquid thoroughly and evenly on the whole body of laundry for a fully automatic washing machine which washes clothes by circulating a washing liquid from the top of a washing tank, and can save the water and wash.

Description

Automatic washing machine

The present invention relates to make cleaning solution to make the automatic washing machine that circulation comes cleaning clothes from top to the bottom of washing and dewatering groove.

In recent years, the earth environment protection has become key subjects.Save resource and be important topic wherein, to then strong request water saving and save washing agent of washing machine.

For water saving, the saving washing agent of automatic washing machine, existing at present various saving schemes.For example have a kind of shown in the open communique of Japanese patent of invention 1989 No. 146584, the cover that the formation water route is used is set in the part of sink inwall, between this cover and sink, form the water route, utilize the pump-absorb action of impeller downside impeller, the cleaning solution of sink downside is caused the top of sink by the water route, discharge cleaning solution from a plurality of taps of endless loop, be cast on the substrate.If use this device, often to substrate cast cleaning solution, even,, be extremely useful so can save water and washing agent then because water level is low slightly during washing also can clean.

But, this existing automatic washing machine, because be to discharge cleaning solutions, so be difficult to cleaning solution from top-pour: can not clean irregular phenomenon by cleaning solution being cast in reduce on the substrate all over all substrates, so there is such problem from a plurality of taps of endless loop.

The objective of the invention is to, solve above-mentioned problem, cleaning solution can be watered all over all substrates, reduce and clean irregular phenomenon, and cleaning solution is not splashed.

In order to achieve the above object, the 1st problem solution of the present invention is as follows: in the washing and dewatering groove bottom impeller free to rotate is set, top from pump suction-chamber that above-mentioned impeller downside impeller periphery forms to above-mentioned washing and dewatering groove is provided with a plurality of independently circulation waterways, and the top that makes above-mentioned a plurality of circulation waterways is towards the inside opening of above-mentioned washing and dewatering groove and form peristome, at above-mentioned each peristome nozzle is set respectively, and the leading section of the cleaning solution of discharging from above-mentioned a plurality of nozzles is intersected at the substantial middle position of above-mentioned washing and dewatering groove.

In addition, the 2nd problem solution of the present invention is that the cleaning solution of discharging from the described nozzle of above-mentioned the 1st problem solution becomes the film shape, and wideer than the width of said nozzle at the width of water spot.

The present invention is according to the 1st above-mentioned problem solution, owing to the leading section of the cleaning solution of discharging from each nozzle is crossing at the substantial middle position of sink, and substrate is rotating during washing, so, the cleaning solution of discharging from nozzle can water all over substrate, can save water and can eliminate the irregular phenomenon of cleaning again.

In addition, by adopting the 2nd problem solution, fan be cast in substrate, and cleaning solution is membranaceous very thin owing to be from the cleaning solution of nozzle ejection, so, even can not cause splashing of cleaning solution with the substrate collision yet.

Below, with reference to the description of drawings embodiments of the invention.

In the accompanying drawing,

Fig. 1: the cutaway view of the automatic washing machine of one embodiment of the invention.

Fig. 2 (a): the vertical view that the spray water flow shape of automatic washing machine is used in the key diagram 1.

Fig. 2 (b): the longitudinal section that the spray water flow shape of automatic washing machine is used in the key diagram 1.

As shown in Figure 1, be provided with washing and dewatering groove (to call sink in the following text) 3 week in the water receiving tank 1, the bottom of this sink 3 is provided with impeller free to rotate 2, and water receiving tank 1 is hung on the washing machine shell 5 by suspension rod 4.A plurality of circulation waterway covers 6 are housed on the inner peripheral surface of sink 3, between this circulation waterway cover 6 and sink 3, have formed a plurality of independently circulation waterways 7.The back side of impeller 2 is provided with downside impeller 8 with being integral, and the pump suction-chamber 9 that forms dried downside impeller 8 peripheries is connected with many circulation waterways 7.The top that makes a plurality of circulation waterways 7 is provided with nozzle 11 respectively at this peristome 10 towards the inside opening of sink 3 and form peristome 10.On part peristome 10, be provided with loose thread filter 12.The 13rd, motor drives impeller 2 by V-type driving belt 14 and reducing gear 15.The 16th, draining valve, the 17th, water-supply valve, the 18th, lid, the 19th, control device, the 20th, the vibration when making dehydration reduces the fluid balancer of usefulness.

Referring now to Fig. 2 the washing machine of said structure is illustrated its course of action.At first as shown in the figure, substrate 21 is dropped in the sink 3, switch starting (not shown), the water by control device 19 control water-supply valves 17 supply predetermined water level begins to wash.One enters washing procedure, and motor 13 is promptly rotated by control device 19 controls, correspondingly turns right, suspends, turns left, suspends with the washing current.The rotation of this controlled motor 13 passes to impeller 2 through V-type driving belt 14, reducing gear 15.Therefore, the downside impeller 8 of impeller 2 and impeller 2 is done to rotate accordingly with motor 13, and substrate 21 and cleaning solution in the sink 3 are stirred, and substrate 21 is cleaned.On the other hand, at the downside impeller 8 of impeller 2 and the cleaning solution between the circulation waterway cover 6 then along with the rotation of impeller 2, rotated the centrifugal force that produces by downside impeller 8 and be pushed into the outside, and, intermittently be poured in the sink 3 from nozzle 11 and loose thread filter 12 by circulation waterway 7.Again, after cleaning solution was pushed in the circulation waterway 7 by the downside impeller 8 of impeller 2, new cleaning solution replenished the supply towards the place at this original place of cleaning solution under the central part of the downside impeller 8 of impeller 2.That is, the cleaning solution between water receiving tank 1 and sink 3 is replenished the supply to the vacancy, so the liquid level a between water receiving tank 1 and the sink 3 becomes the wash liquid level b that is lower than in the sink 3.But, because cleaning solution can flow in the water receiving tank 1 with the gap between hole (not shown) and sink 3 and the impeller 2 from the dehydration of sink 3, so the difference of liquid level is certain in a certain value balance, maintenance.

As mentioned above, because cleaning solution is from downside impeller 8, the circulation waterway 7 of water receiving tank 3 by impeller 2, discharge from nozzle 11 or loose thread filter 12, arrive water receiving tank 3 through substrate 21 backs again, path so to circulate, help the dissolving of washing agent, and can make cleaning solution fully soak into substrate 21, so can increase substantially cleaning performance.

In addition, the spray quinoline current 22 of discharging from nozzle 11 are fan-shaped with the film shape and are discharged from as shown in Figure 2, and wideer than the width of nozzle 11 at the width of water spot, its setting point is at the substantial middle position of sink 3, and the front end of fan-shaped roughly intersects.On the other hand, when washing, rotate because substrate 21 is driven along the circumferencial direction of sink 3 by impeller 2, so match with the spray water flow 22 of fan-shaped, cleaning solution can have no to water all over substrate 21 with omitting.Therefore, even substrate 21 is exposed to the water level b in the sink 3, also can make the irregular phenomenon of the rare cleaning of wash result.That is, can save water and washing agent.

From the foregoing description as can be known, according to the present invention, owing to impeller free to rotate is set in the washing and dewatering groove bottom, from pump suction-chamber that the downside impeller periphery of this impeller forms to the top of above-mentioned washing and dewatering groove, form a plurality of independently circulation waterways, and the top that makes these a plurality of circulation waterways is towards the inside opening of above-mentioned washing and dewatering groove and form peristome, at this peristome nozzle is set respectively, and the leading section of the cleaning solution of discharging from above-mentioned a plurality of nozzles is intersected at the substantial middle position of above-mentioned washing and dewatering groove, so, utilization is from the spray water flow of nozzle discharge and the rotation of substrate, cleaning solution does not water on the omnipresence substrate with promptly having omission, even substrate is exposed on the water level of sink, also the washing of the irregular phenomenon of rare cleaning can be carried out, water and washing agent can be saved.

In addition, because make from the cleaning solution of nozzle ejection and be the film shape, and the width at water spot is wideer than the width of said nozzle, so, the cleaning solution of discharging from nozzle is and fan is cast in substrate, be membranaceous very thin because of cleaning solution again, so, even can not cause splashing of cleaning solution with the substrate collision yet.

Claims

1. full-automatic Xian's clothing machine, it is characterized in that, at washing and dewatering groove bottom configuration impeller free to rotate, extremely form a plurality of independently circulation waterways in the top of described washing and dewatering groove from the pump suction-chamber that this impeller downside impeller periphery forms, and the top that makes described a plurality of circulation waterways is towards the inside opening of described washing and dewatering groove and form peristome, at described peristome spray spout is set respectively, and carry out the discharge control of cleaning solution, and the opening shape of spray spout can be made because of described impeller rotation, stop and forming the watering form that its leading section intersects at the substantial middle position of described washing and dewatering groove from the cleaning solution of described a plurality of spray spouts ejection.

2. automatic washing machine as claimed in claim 1 is characterized in that, making the washing lotion of discharging from described nozzle is the film shape, wideer than the width of described nozzle at the width of water spot.