JP3340802B2 - Dehydration combined washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine which performs both dehydration and rinsing.

[0002]

2. Description of the Related Art Conventionally, in a washing machine for both dehydration and washing,
Dehydration rinses are provided.

[0003] In this case, in general, washing is performed by spinning the tub while rotating the tub while pouring water into the inside of the tub that is also used for washing and dewatering, so that rinsing can be performed relatively efficiently. It has become.

[0004]

However, in the prior art, rinsing of the laundry could not be performed sufficiently efficiently. In addition, there is also a problem that loud noise is generated due to water splash during the rinsing operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a washing machine for both dehydration and washing that can sufficiently and quietly rinse laundry by so-called dehydration rinsing. To offer.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, a dehydrating / washing machine according to the present invention performs a dehydration by rotating while receiving water to rinse and wash laundry. An upper part of the tank is provided with an inner lid that partially has a water injection part that is long in the radial direction of the tank and that performs water injection from the water injection part into the tank.

In this case, it is preferable that the water injection portion of the inner lid is formed lower than the periphery.

The inner lid has a double lid structure comprising an upper lid and a lower lid, a water supply port is formed in the upper lid, a water injection section is formed in the lower lid, and It is preferable to form the portion below the water inlet into an inclined shape.

[0009] Similarly, the inner lid has a double lid structure composed of an upper lid and a lower lid. The upper lid is made non-porous, and a water injection section is formed in the lower lid. It is good to supply water.

[0010] In addition, it is preferable to form an overflow port on the inner lid so as to be long in the radial direction of the tank.

On the other hand, when a rotation speed detecting means for detecting the rotation speed of the washing / dehydrating tub is provided, the tub is rotated at a substantially constant low speed based on the detection result. good.

In addition, a water supply flow rate detecting means for detecting a flow rate of water supply to the inside of the tank is provided, and based on the detection result, the tank is rotated while pouring water at a lower speed as the flow rate of water supply is smaller. good.

Further, it is preferable that the tank is rotated while the water is being injected over a longer time as the flow rate of the supplied water is smaller, based on the detection result of the supplied water flow rate detecting means.

[0014]

According to the above-mentioned means, firstly, by pouring water from the long water supply portion in the radial direction of the inner lid, the laundry in the tub can be efficiently injected with water, and at the same time, the sound insulation effect of the inner lid is obtained. Can be.

Second, by pouring water from a water pouring section lower than the periphery of the inner lid, it is possible to reliably pouring the laundry in the tub even when the flow rate of the supplied water is small.

Third, since the inner lid has a double lid structure, the sound insulation effect can be further enhanced, and a portion of the lower lid below the water injection port relative to the water supply port of the upper lid. Is formed in an inclined shape, so that water can be smoothly supplied to the inside of the inner lid, and water can be supplied without splashing.

Fourth, since the inner lid has a double lid structure and the upper lid has a non-porous shape, the sound insulation effect can be further enhanced.

Fifth, since the overflow port is formed in the inner lid so as to be long in the radial direction of the tub, even when water overflows from the overflow port, the water can be efficiently poured into the laundry in the tub. it can.

Sixth, the rotation of the tub while pouring water is performed at a substantially constant low speed based on the detection result of the rotation speed detecting means for detecting the rotation speed of the tub for both washing and dewatering, so that the inside of the tub can be rotated. The water permeability to the laundry can be improved, the water permeability can be uniform, and the water splash can be reduced.

Seventh, the rotation of the tank while pouring water is performed at a lower speed as the water supply flow rate is smaller, based on the detection result of the water supply flow rate detecting means for detecting the flow rate of the water supply into the tank. Equal amount of water can be supplied to the laundry.

Eighth, rotation of the tub while pouring water is performed over a longer time as the flow rate of the supplied water is smaller, based on the detection result of the supplied water flow rate detecting means. An equal amount of water can be supplied.

[0022]

An embodiment of the present invention will be described below with reference to the drawings. First, FIG. 4 shows an outer box 1 of the entire dehydrating / washing machine. A water receiving tub 2 is elastically supported by a hanging mechanism 4 mainly including a plurality of (only one is shown) hanging rods 3. It is arranged. A large number of dehydration holes 5 are provided on the peripheral side in the tub 2.
And a washing / dehydrating tub 6 having a washing stirrer 7 is provided in the bottom of the tub 6. In addition, tub 2
A drain valve 8 and a drain hose 9 are provided at the outer lower part, and a drive mechanism 11 mainly including a motor 10 is provided. The drive mechanism 11 stops the tub 6 during washing and stirs. The body 7 is rotated, and the tank 6 is rotated together with the stirring body 7 during dehydration. The motor 10 is provided with a rotation sensor 12 for detecting the rotation of the motor 10 which comprises, for example, a magnet which rotates together with a rotating shaft and a corresponding Hall element (both not shown).

On the other hand, a ring-shaped tub cover 13 is attached to the upper edge of the tub 2 above the tub 6, and an inner lid 14 is pivotally mounted on the tub cover 13. As shown in detail in FIGS. 1 and 2, the inner lid 14 includes an upper lid 15 and a lower lid 1.
6 has a water supply port 18 at the end of the upper lid 15 on the pivotal side (the shaft 17 side), and has an overflow port 19 at the free end of the lower lid 16. . Further, the lower lid portion 16 peripheral side of the portion therebetween has a portion the water injection section 21 formed by forming a number of water injection small holes 20, the water injection unit 21 and the overflow opening 19 are both It is long in the radial direction of the tank 6, and the water supply port 18 is formed long in the peripheral direction of the tank 6. Further, the overflow port 19 is higher than the periphery, the water injection section 21 is formed lower than the periphery as shown in FIG. 3, and the upper lid section 15 is entirely non-porous except for the water supply port 18 and the lower lid section. 1
The portion 22 below the water injection port 6 of 6 is formed in an inclined shape.

A top cover 23 is mounted on the outer box 1 above the inner cover 14, and a water supply valve 24 facing the water supply port 18 of the inner cover 14 is provided in the rear of the top cover 23.
And a water level sensor 26 for detecting a water level in the outer tub 2 (in the inner tub 6) by a change in air pressure of an air trap 25 in the drain valve 8 portion, and a micro-function functioning as a control means is provided inside the front part. A computer 27 is provided.

FIG. 5 shows a microcomputer 27.
As shown in FIG. 5, various operation signals are input from a switch input unit 28 including various operation switches, and a rotation detection signal is input from the rotation sensor 12. The rotation detection signal is input from the rotation sensor 12. The microcomputer 27 counts the number of rotations of the motor 10 from the rotation detection signal, and divides the number by the reduction ratio of the drive mechanism 11 and the required time to detect the rotation speed of the tank 6. And also functions as rotation speed detecting means for detecting the rotation speed of the tank 6 with the rotation sensor 12.

Further, a microcomputer 27 receives a water level detection signal from the water level sensor 26. Based on the water level detection signal input from the water level sensor 26, the microcomputer 27 The microcomputer 27 measures the time required to reach a certain water level and divides the amount of water by the measured time to detect the flow rate of water supplied to the tank 6. Therefore, the microcomputer 27 uses the water level sensor 2
6 also functions as a feedwater flow rate detecting means for detecting a feedwater flow rate into the tank 6.

Based on these input signals and a control program stored in advance, the microcomputer 27 drives the display unit 29 composed of various displays, the water supply valve 24, the motor 10, and the drain valve 8. A driving control signal is supplied to the driving circuit 30 for controlling the operation as follows.

That is, the microcomputer 27 comprises:
The operation was changed from “water supply” to “washing”, “drainage”,
The process proceeds in the order of "dehydration", "dehydration rinsing", "dehydration". In particular, during the "dehydration rinsing", the water supply valve 24 is opened to open the upper lid 15 and the lower lid 15 of the inner lid 14. Water is supplied from the water supply port 18 between the sections 16 and dehydration is performed by rotating the tank 6 while pouring the water into the tank 6 from the many small holes 20 of the water injection section 21.

At this time, since the water injection section 21 is formed to be long in the radial direction of the tank 6, the water discharged from the large number of water injection small holes 20 of the water injection section 21, as shown in FIG. The laundry 31 scattered in the radial direction in the outer tub 6 is sequentially and effectively sprinkled by the centrifugal force generated by the rotation of the outer tub 6 and is efficiently injected with water, whereby the rinsing of the laundry is performed sufficiently efficiently. Can be. Also, in this case, the noise generated by water splashing inside and outside the tub 6 (inside the tub 2) also acts as if the inner lid 14 is blocked, so that the noise is not heard loudly by the user, and the noise is quiet. Can drive.

Further, since the water injection section 21 is formed lower than the periphery, even when the flow rate of the supplied water is small, it is possible to reliably pour water into the laundry 31 in the tub 6 while storing water in the water injection section 21. Yes, and therefore, the laundry can be efficiently rinsed.

In addition, since the inner lid 14 has a double lid structure, the sound insulation effect can be further enhanced, and the operation can be performed more quietly. In addition, the lower part of the lower lid part 16 below the water supply port 18 is formed to be inclined with respect to the water supply port 18 of the inner lid 14, so that water can be smoothly supplied to the inside of the inner lid 14. Water can be supplied without bouncing, so that the driver can drive more quietly.

Further, since the upper lid portion 15 of the inner lid 14 having the double lid structure is made non-porous, the sound insulation effect can be further enhanced and the operation can be performed more quietly.

The overflow port 19 is also formed to be long in the radial direction of the tank 6, so that the overflow port 1 is provided when the supply flow rate is large.
Even when the water overflows from 9, the water can be efficiently poured into the laundry in the tub 6, so that the laundry can be efficiently rinsed.

On the other hand, at the time of the "dehydration rinsing", the microcomputer 27 detects the rotation speed of the tank 6 in cooperation with the rotation sensor 12 and rotates the tank 6 at a substantially constant low speed. It can improve the permeability of water to the laundry 31 in the tub 6 thereby,
Because it can be even and the water splash can be reduced, this also makes it possible to rinse the laundry sufficiently efficiently, and
Can be done quietly.

Further, in this case, the rotation speed of the tank 6 is made to differ depending on the flow rate of water supplied to the tank 6 which is detected by the microcomputer 27 in cooperation with the water level sensor 26. As shown in FIG. 8, if the flow rate of the water supply to the inside of the tank 6 is “low”, for example, 7.5 [l / min] or less, the rotation speed of the tank 6 is set to 50 [rpm], and 7.6 to 12.5. If [l / min] is "medium", 1
If it is “high” of 00 [rpm] and 12.6 [l / min] or more, the rotation speed is set to 150 [rpm]. In short, the smaller the feed water flow rate, the lower the rotation of the tank 6 is performed. As a result, an equal amount of water can be supplied to the laundry in the tub 6, so that the laundry can be rinsed sufficiently efficiently.

Further, the required time of each of the above-mentioned steps is as shown in FIG. 6, and among them, the required time of "water supply" and "drainage" is different depending on the use situation of each household, and is indicated by "-". On the other hand, the time required for “dehydration rinsing” is indicated by “T minutes”. This “T minute” is calculated by the microcomputer 27
Are made different depending on the flow rate of water supply to the tank 6 which is detected in cooperation with the water level sensor 26, that is,
As shown in FIG. 8, if the flow rate of water supplied to the tank 6 is “low”, for example, 7.5 [l / min] or less, the required time for “dehydration rinsing” is 3 [min], and 7.6 to 12.5 [l
/ Min], 2 [min], 12.6 [l /
If the “high” is equal to or more than “minute”, the value is set to 1 [minute]. In other words, the “dehydration rinse” is performed over a longer time as the flow rate of the supplied water is smaller. As a result, the laundry in the tub 6 can be supplied with an equal amount of water, so that the laundry can be rinsed sufficiently efficiently.

[0037]

The dehydrating and washing machine of the present invention is as described above, and has the following effects. First, the upper portion of the tank of the washing dehydration also serves to rinse the laundry by performing dehydration by being rotated while subjected to water injection, infusion water in a portion of the long water injection unit in the radial direction of the tank By providing an inner lid for water injection from the section into the tub, the laundry in the tub can be efficiently poured with water, and at the same time, the sound insulation effect of the inner lid can be obtained. Can be performed efficiently and quietly.

Second, since the water injection portion of the inner lid is formed lower than the periphery, even when the water supply flow rate is small, it is possible to surely pour the laundry in the tub and to rinse the laundry. It can be performed efficiently.

Third, the inner lid has a double lid structure including an upper lid and a lower lid, and a water supply port is formed in the upper lid.
By forming a water injection part in the lower lid part and further forming the lower part of the lower lid part below the water injection port in an inclined shape, it is possible to obtain a higher sound insulation effect by the inner lid, and more quietly In addition to being able to operate, the water can be smoothly supplied to the inside of the inner lid, and the water can be supplied without splashing.

Fourth, the inner lid has a double lid structure comprising an upper lid and a lower lid. The upper lid is made non-porous, and a water injection section is formed in the lower lid. By supplying water in the middle, the sound insulation effect of the inner lid can be further enhanced, and the operation can be performed more quietly.

Fifth, since the overflow port is formed long in the inner lid in the radial direction of the tub, even when water overflows from the overflow port, the water can be efficiently poured into the laundry in the tub. As a result, the laundry can be efficiently rinsed.

Sixth, a rotation speed detecting means for detecting the rotation speed of the washing / dewatering tub is provided. Based on the detection result, the tub is rotated at a substantially constant low speed while the water is being injected. By doing so, the permeability of water to the laundry in the tub can be improved, the water can be evenly distributed, and the water splash can be reduced, so that the laundry can be rinsed sufficiently efficiently and quietly. it can be carried out.

Seventh, there is provided a water supply flow rate detecting means for detecting the flow rate of the water supply to the inside of the tank. Based on the detection result, the rotation of the tank while injecting the water is performed at a lower speed as the flow rate of the water supply is smaller. By doing so, the laundry in the tub can be supplied with an equal amount of water, and the laundry can be rinsed sufficiently efficiently as well.

Eighth, based on the detection result of the water supply flow rate detection means, the above-mentioned rotation of the tank while injecting water is performed over a longer time as the flow rate of the water supply is smaller. An even amount of water can be supplied to the laundry inside, and the laundry can be rinsed sufficiently efficiently as described above.

[Brief description of the drawings]

FIG. 1 is a plan view of an inner lid showing one embodiment of the present invention.

FIG. 2 is a longitudinal side view of the inner lid taken along line AA of FIG. 1;

FIG. 3 is a longitudinal sectional side view of a water injection portion of the inner lid taken along line BB of FIG. 1;

FIG. 4 is an overall vertical side view.

FIG. 5 is a schematic electric configuration diagram.

FIG. 6

FIG. 7 is a vertical cross-sectional view of a main part showing an operation during dehydration rinsing.

FIG. 8 is a diagram showing the relationship between the flow rate of water supplied during dehydration and rinsing, the rotation speed of the tank, and the required time

[Explanation of symbols]

6 is a tank, 10 is a motor, 11 is a driving mechanism, 12 is a rotation sensor (rotation speed detecting means), 14 is an inner lid, 15 is an upper lid, 16 is a lower lid, 18 is a water supply port, and 19 is an overflow port. , 2
1 is a water injection part, 22 is a part of the lower lid below the water inlet, 26
Denotes a water level sensor (water supply flow rate detection means), 27 denotes a microcomputer (rotation speed detection means, control means, water supply flow rate detection means), and 31 denotes laundry.

Continuation of the front page (56) References JP-A-1-244800 (JP, A) JP-A-2-55090 (JP, A) JP-A-57-184457 (JP, A) JP-A-59-168287 (JP) , U) Actually open sho 59-44987 (JP, U) Actually open sho 63-139891 (JP, U) Real open sho 58-190989 (JP, U) Real public sho 63-19037 (JP, Y1) Real public sho 61-32640 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06F 33/02 D06F 39/08 301 D06F 39/14

Claims (8)

(57) [Claims] 1. A method for rinsing laundry by performing dehydration by rotating the tub while pouring water into the inside of a tub that is also used for washing and dewatering. A dehydrating / washing machine characterized in that an inner lid is provided having a part in a part thereof for injecting water from the water injection part into the tub. 2. The washing machine according to claim 1, wherein the water injection part is formed lower than the periphery. 3. An inner lid having a double lid structure comprising an upper lid and a lower lid, wherein the upper lid has a water supply receiving port, the lower lid has a water injection section, and the lower lid has a water injection section. 2. The washing machine according to claim 1, wherein the lower portion of the receiving port is formed in an inclined shape. 4. An inner lid having a double lid structure comprising an upper lid and a lower lid, wherein the upper lid is made non-porous, a water injection section is formed in the lower lid, and water is supplied between the upper lid and the lower lid. The washing machine for both dehydration and washing according to claim 1, wherein the washing machine is used. 5. The washing machine according to claim 1, wherein an overflow port is formed in the inner lid so as to be longer in a radial direction of the tub. 6. A rotating speed detecting means for detecting a rotating speed of a washing tub by rinsing the laundry by spinning the washing tub while pouring water into the washing / dehydrating tub. And a control means for controlling the rotation of the tub while supplying water at a substantially constant low speed based on the detection result. 7. A water supply flow rate detecting means for detecting a flow rate of water supply to the inside of the tank. Based on the detection result, the tank is rotated while being injected at a lower speed as the flow rate of the water supply is smaller. 7. The washing machine according to claim 6, further comprising control means. 8. A control system comprising a water supply flow rate detecting means for detecting a flow rate of water supply to the inside of the tank, and performing a rotation of the tank while injecting water over a longer time as the flow rate of the water supply is smaller based on the detection result. 7. The dehydrating and washing machine according to claim 6, further comprising control means for performing the following.