CN1097823A

CN1097823A - Washing machine

Info

Publication number: CN1097823A
Application number: CN 93120329
Authority: CN
Inventors: 藤井裕幸; 大村优子; 太田文夫; 见城好丰
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 1993-07-19
Filing date: 1993-11-23
Publication date: 1995-01-25
Anticipated expiration: 2013-11-23
Also published as: CN1051590C; JPH0731785A; KR100239859B1; JP3216337B2

Abstract

A kind of cleaning solution is watered from sink top is spread across the washing machine that washings washs, in the sink bottom agitator is set with freely rotating, revolution by agitator is passed through a plurality of circulation waterways with cleaning solution, be directed to sink top, it also is provided with and will waters the Water spray nozzle that is spread across in the sink by the cleaning solution that circulation waterway guiding comes, the watering amount of the time per unit of Water spray nozzle be taken as approximately the water yield in the sink 50% or more.Thereby improve the dissolution velocity of washing agent, increase the replacing velocity of the lip-deep cleaning solution of washings, improve scourability, it is irregular to reduce washing.

Description

Washing machine

The present invention relates to a kind of cleaning solution is watered from sink top and be spread across the washing machine that washings washs.

In recent years, the earth environment protection has become a very important problem.Saving resource also is one of them important exercise question.Wish very much laundry function water-saving and economize washing agent.

About water-saving and province's washing agent, various methods have been proposed.For example, shown in " Japanese patent of invention is open " 1989 No. 146584 communique, proposed following method of cleaning: the part at washing and dewatering groove inwall is provided with the case that the formation water route is used, form the water route between case and the washing and dewatering groove, rely on the revolution of agitator, the effect of the pump by being located at agitator bottom wing wheel, feed this water route cleaning the bottom of water from the washing and dewatering groove, import the top of washing and dewatering groove, water and be spread across on the washings (clothing class), even washings is exposed to the water surface, cleaning solution also can supply on the washings.

But, contained according to " Japanese patent of invention is open " No. 146584 communique in 1989, this method is to be purpose with the water saving, only adopt a water route that cleaning solution is imported top consciously, so when washings surfaces feedwater, be difficult to a large amount of cleaning solutions watered from top and be spread across on the washings, problems such as even residual soil can take place to wash not.And when washings surfaces when water saving, washings can not fully stir, and washing agent can not fully dissolve, and is difficult to effectively washings be played a role, and not problem such as even residual soil of washing can take place.

The present invention is intended to solve above-mentioned problem, and its first purpose is: by a plurality of circulation waterways, the above cleaning solution of ormal weight is circulated, improve the dissolution velocity of washing agent with this, increase the replacing velocity of cleaning solution on the washings surface simultaneously.

Second purpose of the present invention is: water the cleaning solution that spills volume from top, increase the replacing velocity of cleaning solution on the washings surface with this, with short wash time, obtain the scourability of regulation.

The solution that realizes above-mentioned first purpose is as follows: a plurality of circulation waterways and Water spray nozzle are set, the revolution of the agitator of circulation waterway by being disposed at sink bottom with freely rotating, cleaning solution is directed to above-mentioned sink top, and Water spray nozzle will be watered by the cleaning solution of above-mentioned circulation waterway guiding and spill to above-mentioned sink; By the time per unit of above-mentioned Water spray nozzle ejection water the amount of spilling be about the water yield in the above-mentioned sink 50% or more.

The solution that realizes second purpose is as follows: except the method that solves above-mentioned the 1st problem, the control device of control washing course is set again, this control device can be set short wash time.

The present invention is by the solution of above-mentioned first problem, can make the above cleaning solution circulation of ormal weight by enough a plurality of circulation waterways, increase the dissolution velocity of washing agent, simultaneously can water the cleaning solution that spills volume from top, constantly provide cleaning solution, increase the replacing velocity of the lip-deep cleaning solution of washings to washings.

The present invention can water the cleaning solution that spills volume by the solution of second problem from top, constantly provide cleaning solution to washings, increases the replacing velocity of cleaning solution on the washings surface, therefore, even the very short scourability that also can obtain to stipulate of wash time.

Being simply described as follows of accompanying drawing:

Fig. 1 is the cutaway view of one embodiment of the invention washing machine;

Fig. 2 is the calcspar of washing machine among Fig. 1;

Fig. 3 is the quantity of circulating water of this washing machine and the graph of a relation of detergent dissolution speed;

Fig. 4 is the wash time of this washing machine and the graph of a relation of detergent dissolution degree;

Fig. 5 is the graph of a relation of the wash time and the scourability of this washing machine.

Below, see figures.1.and.2, the first embodiment of the present invention is described.

As shown in the figure, washing and dewatering groove (to call sink in the following text) 3 is housed in the water receiving tank 1, its bottom has been installed agitator 2 with freely rotating, by hanging the shell 5 that rod 4 is hung on washing machine.On the inner surface of sink 3, adhere to a plurality of circulation waterway cases 6, and form a plurality of independently circulation waterway 7a, 7b between the sink 3.The back side of agitator 2 is provided with wing wheel 8 with being integral, and the pump chamber 9 that forms on wing wheel 8 peripheries is connected with circulation waterway 7a, 7b.The top of a plurality of circulation waterway 7b is formed with towards the peristome 10 of sink 3 inside openings, and these peristomes 10 are respectively equipped with Water spray nozzle 11.In addition, the peristome 10 on circulation waterway 7a top is provided with cotton fiber filter 12.Motor 13 drives agitator 2 by V-shape belt 14 and reducing gear 15.Level sensor 16 links to each other with the bottom of water receiving tank 1, detects the water level in the sink 3, and its output signal is input to control device 17.

Control device 17 as shown in Figure 2, is made of controller 18, operation display 19, memory 20 and power switch 21, and controller 18 is according to the output signal of level sensor 16, and by power switch 21 control water-supply valves 22, the water level in the water receiving tank 1 is injected in control.At this moment, controller 18 is controlled at washings 23 with the water level of sink 3 and surfaces on the water level a of degree.This water level a gets the ratio of the amount and the water yield in the sink 3 of washings 23 in the input sink 3.That is, bath raio 7～8.5, optimum value are 7.5～8.In addition, water level b is the water level that washings 23 that traditional washing machine sets is immersed in the water surface.The bath raio of water level b is 8.5～9.

Controller 18 by user's input signal, according to each program of washing, rinse and dehydration, is controlled motor 13, water-supply valve 22 and draining valve 24 etc. by operation display 19 successively.In each program of washing, rinse, during CD-ROM drive motor 13, being measured by the watering of the time per unit (1 minute) of a plurality of Water spray nozzles 11 ejections is 30 liters.But when dropping into the washings 23 of rated capacity (6 kilograms) in sink 3, the cleaning solution that enters is 63 liters, and the watering amount approximately is exactly 50% of the sink 3 interior water yields for 30 liters.In addition, 25 for motor 13 advance phase electric capacity, 26 is power switch.

Now the operation principle with regard to above structure describes, at first, as shown in Figure 1, washings 23 is dropped in the sink 3, press the starting switch (not shown) that is located on the operation display 19, by controller 18, start water-supply valve 22, detected by level sensor 16, feedwater enters washing course to the water level a lower than the water level b of traditional washing machine.When entering washing course, motor 13 is made right-hand rotation, control such as is stopped, turning left, stop by control device 17 according to the washing current.Revolution by the motor 13 of control device 17 control is passed to agitator 2 by V-shape belt 14, reducing gear 15.

Agitator 2 and the wing wheel 8 that is located at agitator 2 bottoms turn round washings 23 and cleaning solution in the agitator treating groove 3 along with the revolution of motor 13.On the other hand, be located at the wing wheel 8 of agitator 2 and the cleaning solution between the water receiving tank 1, because the centrifugal force that wing wheel 8 revolutions produce is pressed out to water receiving tank 1 bottom outside, by circulation waterway 7a, 7b, along with the revolution of motor 13 is intermittently watered from Water spray nozzle 11 and cotton fiber filter 12 and is spread across in the sink 3.At this moment, because be provided with a plurality of circulation waterway 7b and Water spray nozzle 11, so, can water the cleaning solution that spills volume from the top of sink 3 by being located at the revolution of the wing wheel 8 on the agitator 2.

The relation of the quantity of circulating water of cleaning solution and detergent dissolution speed, as shown in Figure 3, with quantity of circulating water (watering amount) J of regulation ₁Be boundary, dissolution velocity increases.Inventors are under the state of the washings 23 that drops into rated capacity (6 kilograms), and the sink 3 that employing can be injected 63 liters of cleaning solutions carries out various tests, the J that the result obtains ₁Value is 30 liters.Because with this J ₁Be boundary, dissolution velocity increases, if in advance quantity of circulating water is set in J ₁More than the value, then, just can under high wash concentration state, wash from washing.

In addition, because the increase of quantity of circulating water, the replacing velocity of washings 23 lip-deep cleaning solutions also increases thereupon, so in the washing process, washing agent can be effectively plays a role to the dirt of washings 23, can improve scourability and reduce washing irregular.It is parameter that Fig. 4 shows with the quantity of circulating water, the relation of wash time and detergent dissolution, and Fig. 5 shows the relation that dissolubility produces wash time and scourability under the difference condition.

As can be seen from Figure 4, the characteristic B during the characteristic A few with quantity of circulating water (15 liters of per minutes) during quantity of circulating water many (30 liters of per minutes) compares the enhanced dissolution rate of washing agent.Therefore, as can be seen from Figure 5, characteristic B during characteristic A few with quantity of circulating water (15 liters of per minutes) during quantity of circulating water many (30 liters of per minutes) compares, in same wash time, scourability improves, its result learns that on scourability the difference of dissolution velocity can produce difference to scourability.Thus, be set in S as if desired value with scourability ₁, then wash time can be from T ₁Foreshorten to T ₂, set short wash time for controller 18, also the scourability that can obtain to stipulate.

In addition, in the above-described embodiments, per minute is to circulate with about 50% the water yield in the sink 3, but as can be seen from Figure 3, quantity of circulating water is fixed on J ₁More than, can further accelerate the dissolution velocity of washing agent, just can under the high state of wash concentration, wash from beginning.In addition, be that a plurality of Water spray nozzles 11 are set here, but also can respectively establish 1 Water spray nozzle 11 and cotton fiber filter 12, the cleaning solution more than 30 liters is circulated.

From the foregoing description as can be known, the present invention is provided with a plurality of circulation waterways and Water spray nozzle.The revolution of the agitator of circulation waterway by being disposed at sink bottom with freely rotating is directed to above-mentioned sink top with cleaning solution; Water spray nozzle will be watered by the cleaning solution of above-mentioned circulation waterway guiding and spill to above-mentioned sink, by the watering amount of the time per unit of above-mentioned Water spray nozzle ejection be about the water yield in the above-mentioned sink 50% or more, therefore can increase the dissolution velocity of washing agent, accelerate the replacing velocity of the lip-deep cleaning solution of washings simultaneously.Just can wash under the high state of wash concentration from the washing beginning, can play a role to the dirt attached to the washings surface effectively, improve scourability, it is irregular to reduce washing.

In addition, the present invention also is provided with the control device of control washing course, and above-mentioned control device can be set short wash time, so spill the volume cleaning solution by watering from top, the replacing velocity of washings surface washing liquid can be increased, the scourability of defined can be obtained with short wash time.

Claims

1, a kind of washing machine, it comprises: a sink; Single-revolution is arranged at the agitator of above-mentioned sink bottom freely; A plurality of circulation waterways that cleaning solution are directed to above-mentioned sink top by above-mentioned agitator revolution; To water the Water spray nozzle that is spread across in the above-mentioned sink by the cleaning solution that above-mentioned circulation waterway guiding comes; By the watering amount of the time per unit of above-mentioned Water spray nozzle ejection be taken as approximately the water yield in the above-mentioned sink 50% or more.

2, washing machine as claimed in claim 1 is characterized in that: it is provided with the control device of control washing course, can set short wash time.