JP2020065740A - Washing machine - Google Patents

Abstract

To provide a washing machine capable of shortening operation time while maintaining the accuracy of detergent determination.SOLUTION: A washing machine includes: a first input part 31 for inputting a powder or liquid detergent for one workload; a second input part 32 in which a liquid detergent for a plurality of times of workloads is stored and which automatically inputs the liquid detergent for one workload; and detergent type determination means for determining whether the inputted detergent is powder or liquid. When detergent automatic input setting is OFF, the powder detergent or liquid detergent in the first input part is inputted into an outer tub, and when the detergent automatic input setting is ON, the liquid detergent of the second input part is inputted in the outer tub. The detergent determination by the detergent type determination means is performed after a water tub 21 is rotated at a first rotation speed at a predetermined water level when the detergent automatic input setting is OFF, and after the water tub 21 is rotated at a second rotation speed at the predetermine water level when the detergent automatic input setting is turned ON. At that time, the second rotation speed is lower than the first rotation speed. After the detergent determination, water is supplied and washing is performed with a highly concentrated detergent liquid.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a device for automatically adding a detergent and a washing machine equipped with the device.

  There are several types of detergents such as powder detergents, liquid detergents, concentrated liquid detergents, etc., and their solubility in water is different. Therefore, for example, in the case of a powder detergent that is less soluble than a liquid detergent or the like, it is desirable to extend the detergent dissolution time to sufficiently dissolve the detergent. On the other hand, for liquid detergents that are more easily dissolved than powder detergents, it is desirable to shorten the detergent dissolving time to shorten the overall operating time and reduce the power consumption of the detergent dissolving means (circulation pump). .

  Further, it is required to perform appropriate washing operation, rinsing operation, etc. depending on the type and amount of the added detergent to shorten the total time from the start to the end of washing, save energy and save water. For example, detergents that can be rinsed once are commercially available. In such a detergent, it is desirable that the operation contents of the washing operation and the rinsing operation can be changed. Further, for example, when the user determines that the clothes are less contaminated and puts less than a predetermined amount of detergent, it is desirable that the operation contents of the washing operation and the rinsing operation can be changed.

  Therefore, in Patent Document 1, a casing, an outer tub that is vibration-isolated and supported in the casing, and is capable of storing a liquid therein, and a drum that is rotatably supported in the outer tub and in which laundry is stored A driving device for rotating the drum, water supply means for supplying water into the outer tub, detergent supply means for supplying detergent into the outer tub, water supplied by the water supply means, and the detergent supply means Washing means for stirring the detergent supplied by the washing machine, electric conductivity detecting means for detecting the electric conductivity of the liquid, and operation control means for controlling the drive device, the water supply means and the detergent melting means. In the machine, the operation control means controls the detergent dissolving means to stir water and detergent for a predetermined time, and then detects the electrical conductivity of the water stirred by the detergent dissolving means by the conductivity detecting means, The conductivity Based on the electrical conductivity detected by means output, a washing machine is disclosed, which comprises changing the operation content.

JP, 2014-64791, A

  The type of detergent put into the manual detergent inlet corresponds to powder detergents and liquid detergents, so it is necessary to dissolve the detergent in the water supplied to the outer tub and the washing / dehydrating tub.

  Therefore, before the determination of the detergent, the powder detergent is dissolved, so that a dissolving step with a strong water flow is required.

  However, when the dissolving process is performed with a strong water flow, there is a risk that the washing liquid foams, and the determination accuracy in the determination process may be deteriorated.

  Further, there is a concern that it takes a long time for the water flow in the outer tub and the washing / dehydrating tub caused by the strong water flow to be stopped.

  Therefore, an object of the present invention is to provide a washing machine capable of shortening the operation time while maintaining the accuracy of detergent determination.

  In order to solve such a problem, the present invention provides a casing, an outer tub supported in the casing for collecting washing water, and a washing / demounting unit rotatably supported in the outer tub for accommodating laundry. A water tank, a first charging unit used when charging one dose of the powder detergent or liquid detergent into the outer tub, and a plurality of times of the liquid detergent are stored and one dose of the liquid detergent is automatically stored. A second charging section used when charging into the outer tank and a detergent type determining means provided at the bottom of the outer tank are provided. When the automatic detergent setting is OFF, the first charging section of the first charging section is turned off. In the washing machine in which the powder detergent or the liquid detergent is put into the outer tub, and when the detergent automatic feeding setting is ON, the liquid detergent of the second feeding unit is put into the outer tub, When the automatic detergent setting is OFF, the first time at the specified water level After rotating the washing / dehydrating tub at a speed, the detergent type determination means makes a detergent determination, and then water is supplied to perform high-concentration washing, and when the detergent automatic feeding setting is ON, at the predetermined water level. After rotating the washing / dehydrating tub at a rotation speed of 2, the detergent type determination means makes a detergent determination, and then water is supplied to perform high-concentration washing, and the second rotation speed is It is to provide a washing machine characterized by being lower than a first rotation speed.

  According to the present invention, it is possible to provide a washing machine capable of reducing operating time while maintaining accuracy of detergent determination.

It is a perspective view which shows the external structure of the washing machine which concerns on embodiment. It is a front view showing composition of a washing machine concerning an embodiment. It is a block diagram which shows the structure of the washing machine which concerns on embodiment from diagonally upper front. It is a schematic diagram which shows the internal structure of the washing machine which concerns on embodiment. It is a perspective view showing the state where the front panel of the washing machine concerning an embodiment was removed. It is a schematic diagram which shows the piping path of the washing machine which concerns on embodiment. It is a perspective view (1) which shows the external structure of the tank used in embodiment. It is a perspective view (2) which shows the external structure of the tank used in embodiment. It is a perspective view (3) which shows the external structure of the tank used in embodiment. It is sectional drawing which shows the internal structure of the tank used in embodiment. (A) is an explanatory view showing a state of charging the washing treatment liquid in the washing machine according to the comparative example, and (B) is an explanatory view showing a state of charging the washing treatment liquid in the washing machine according to the embodiment. . It is explanatory drawing which shows the arrangement | positioning relationship of a 1st lid and a 2nd lid. It is a functional diagram of a water quality sensor. It is a functional block diagram explaining the composition of control device 100 of the washer-dryer concerning this embodiment. It is process drawing explaining the driving | operation process of the washing operation (washing-rinsing-dehydration) of the washing-drying machine which concerns on this embodiment. It is a flowchart which determines the detergent melt | dissolution operation time by the water temperature and electric conductivity of tap water. It is a flowchart which determines the detergent type from the electric conductivity, estimates the easiness of foaming from the result, and switches the washing time, the water amount, and the motor rotation speed. It is a graph which shows the result of having tested what washing performance (washing ratio) changes when the ratio of the operating time of the high concentration washing process to the main washing process is changed. It is a state of washing water pouring from the water injection hose into the aquarium. It is a graph which shows the variation of electric conductivity according to the number of rotations of a motor.

  Hereinafter, embodiments of the present invention (hereinafter, referred to as “this embodiment”) will be described in detail with reference to the drawings. It should be noted that the drawings are merely schematic illustrations so that the present invention can be fully understood. Therefore, the present invention is not limited to the illustrated examples. Further, in each drawing, common or similar components are designated by the same reference numerals, and duplicated description thereof will be omitted.

<Embodiment>
In the present embodiment, in addition to the above-mentioned problems, the conventional washing machine has the problems described in the section <Main Features of Washing Machine> to be described later. Therefore, it is considered to solve the problems. Is intended to provide.

The washing machine 1 according to the present embodiment has the following structural features.
(1) The washing machine 1 is equipped with a washing treatment liquid charging device 30 on the front upper part of the housing 11, which is a place near the standing position of the user (see FIGS. 4 and 5).
(2) The washing machine 1 is equipped with a washing treatment liquid charging device on the front upper part of the housing, which is far from the drying unit 71 (see FIG. 4).
(3) The washing machine 1 is equipped with the laundry processing liquid charging device 30 at a position closer to the user's standing position than the operation panel 14 (see FIG. 4).
(4) The washing machine 1 is equipped with the washing treatment liquid charging device 30 in front (outside) of the outer tub 22 (see FIG. 4).
(5) The washing machine 1 is equipped with the laundry processing liquid charging device 30 at a position closer to the user's standing position than the first charging part 31 (manual charging part) (see FIG. 4).
(6) The washing machine 1 has a structure in which the second loading unit 32 (automatic loading unit) of the washing treatment liquid loading device 30 is opened from front to back (see FIG. 12).

<External configuration of washing machine>
Hereinafter, the external configuration of the washing machine 1 according to the present embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a perspective view showing an external configuration of a washing machine 1 according to this embodiment. FIG. 2 is a front view showing the configuration of the washing machine 1. FIG. 3 is a configuration diagram showing the configuration of the washing machine 1 as seen from diagonally above and front.

  Here, it is assumed that the washing machine 1 is a washing / drying machine having a function of drying an object to be washed (cloths). However, the washing machine 1 may not have a drying function. In addition, here, it is assumed that the washing machine 1 is a vertical washing machine in which a vertical water tank is arranged inside the housing. However, the washing machine 1 may be a drum type washing machine.

  Moreover, the 1st input part 31 (input port) mentioned later is demonstrated as what a user inputs manually into the water tank 21 (washing / dehydrating tank) mentioned later by a user. In addition, the second charging unit 32 (charging port) described below is described as an automatic charging unit that charges the laundry processing liquid into the laundry processing liquid charging device 30 described below. However, the second charging unit 32 described later does not necessarily have to be the automatic charging unit that charges the laundry processing liquid charging device 30.

  As shown in FIG. 1, the washing machine 1 is provided with an openable and closable upper surface cover 12, an outer lid 13, and a tank storage lid 15 on an upper surface of a housing 11. In addition, in the present embodiment, the washing machine 1 includes a removable front panel 16 on the front surface of the housing 11. The top cover 12 is arranged on the rear upper surface of the housing 11. The outer lid 13 is arranged on the central upper surface of the housing 11. The tank storage lid 15 is arranged on the front upper surface of the housing 11. An operation panel 14 for operating the washing machine 1 is provided on the upper surface of the outer lid 13.

  2 and 3 show a state in which the outer lid 13 and the tank storage lid 15 are opened, respectively. FIG. 2 shows the configuration of the washing machine 1 as seen from the front, and FIG. 3 shows the configuration of the washing machine 1 as seen obliquely from the upper front.

  As shown in FIGS. 2 and 3, when the outer lid 13 is opened, the washing machine 1 is provided with an opening 11 a inside the housing 11. Inside the opening 11a, a water tank 21 that functions as a washing / dehydrating tank into which an object to be washed (clothes) is put is arranged. In addition, as shown in FIG. 3, a first charging unit 31 used when charging one-time laundry treatment liquid into the water tank 21 (washing / dehydrating tank) is arranged around the water tank 21. The first charging unit 31 functions as a manual charging unit for the user to manually charge a washing treatment liquid such as a liquid detergent or a softening agent (finishing agent) into the water tank 21 (washing / dehydrating tank). In the illustrated example, the first charging unit 31 (manual charging unit) is arranged at the upper left front part of the housing 11 and outside the water tank 21 (washing / dehydrating tank).

  Further, in the washing machine 1, when the tank storage lid 15 is opened, the tank 42 of the laundry processing liquid charging device 30 is arranged inside the housing 11. The washing treatment liquid feeding device 30 is a device for measuring the washing treatment liquid stored in the tank 42 and automatically feeding an appropriate amount of the washing treatment liquid into the water tank 21 (washing / dehydrating tank). The washing treatment liquid introduction device 30 includes a tank 42 that stores a plurality of times of washing treatment liquid, and a transport pump 46 (see FIGS. 4 and 5) that transports the washing treatment liquid. The transport pump 46 (see FIGS. 4 and 5) functions as a transport unit that measures the laundry treatment liquid contained in the tank 42 and conveys one washing treatment liquid from the inside of the tank 42 to the outside.

  The tank 42 is arranged in the upper front part of the housing 11 and in a position in front of the first charging part 31 (manual charging part). In the illustrated example, two tanks 42a and 42b for a detergent and a softening agent (finishing agent) are arranged. Thereby, the washing machine 1 can automatically add the detergent and the softening agent (finishing agent) to the water tank 21. The tank 42 is provided with a second input unit 32 used when the laundry processing liquid is stored in the tank 42. The second feeding unit 32 functions as an automatic feeding unit for automatically feeding the washing treatment liquid into the water tub 21 (laundry / dehydration tub) by the washing treatment liquid feeding device 30. The second charging unit 32 is sealed by a charging port lid 43a. For example, the tank 42a is provided with a second charging section 32a for charging a detergent and is sealed with a charging port lid 43a. Further, the tank 42b is provided with a second charging section 32b for charging the softening agent, and is sealed by a charging port lid 43a.

  The second charging unit 32 is a charging unit (automatic charging unit) for charging the laundry processing liquid stored in the tank 42 of the laundry processing liquid charging device 30. As described above, the tank 42 is arranged in the upper front part of the housing 11 and in a position in front of the first charging part 31 (manual charging part). Therefore, like the tank 42, the second charging unit 32 (automatic charging unit) is also arranged in the upper front portion of the housing 11 and in a position in front of the first charging unit 31 (manual charging unit). .

<Internal structure of washing machine>
The internal configuration of the washing machine 1 will be described below with reference to FIGS. 4 and 5. FIG. 4 is a schematic diagram showing the internal configuration of the washing machine 1. FIG. 5 is a perspective view showing a state where the front panel of the washing machine 1 is removed.

  As shown in FIG. 4, the washing machine 1 includes an outer tub 22 inside a housing 11, and a water tub 21 (washing / dehydrating tub) inside the outer tub 22.

  The outer tub 22 is provided such that the outer tub cover 22a provided on the upper surface portion, the lid member 22b that seals the opening provided on the outer tub cover 22a, and the bottom portion are dropped into the outer tub cover more than other parts. And a drop-in portion 22c.

  The water tank 21 (laundry / dehydration tank) has a bottomed cylindrical shape with an open upper surface. The water tank 21 has a body plate 21a that forms a cylindrical body portion, rotary blades 21b that rotate at the bottom of the water tank 21, and a balance ring 21c that maintains the balance of the water tank 21. The body plate 21a is formed with a plurality of through holes 21aa for passing water and ventilation. The balance ring 21c is a fluid balancer with a fluid sealed inside.

  The washing machine 1 includes a drive device 23 for rotationally driving the water tub 21 and the rotary vanes 21b, a rotation detection device 24 for detecting the operation of the drive device 23, and a motor current detection device 25. The drive device 23 includes a motor 23a that rotates the water tank 21 and the rotary blade 21b, a clutch mechanism 23b that defines a rotation mode (stirring and dehydration) of the water tank 21 and the rotary blade 21b, and a rotary shaft 23c that is connected to the rotary blade 21b. And have. The rotating shaft 23c is arranged at the center of the water tank 21 in a top view.

  Further, the washing machine 1 has a water supply unit 20, which is a water supply unit for supplying water to the water tank 21, and a drying unit 71 (heater) for heating air to obtain dry air in the upper rear part of the housing 11. And a fan 72 for circulating the dry air, a blower duct 73, and a drying duct 81.

  The blower duct 73 is arranged between the fan 72 and the blowing nozzle 74, and the drying unit 71 (heater) is arranged in the middle thereof. The air duct 73 is connected to the blowing nozzle 74 by a bellows tube 73a. The blowing nozzle 74 blows the dry air, which is sent by the fan 72 and heated by the drying unit 71, into the outer tank 22. The drying duct 81 is arranged between the outer tub 22 and the fan 72. The drying duct 81 is connected to the drop-in portion 22c of the outer tub 22 by a bellows tube 81a and has a dehumidifying mechanism inside.

  In such a configuration, the washing machine 1 supplies water from the water supply unit 20 (water supply means) to the outer tub 22 so that the water tank 21 (washing / dehydrating tank) is immersed in water during the washing process and the rinsing process, for example. Supply. In the washing machine 1, for example, during the drying process, the fan 72 is rotated to send the air to the air duct 73, the drying unit 71 heats the air to obtain the dry air, and the dry air is supplied to the outer tub 22 and the water tank. Pass the inside of 21. As a result, the washing machine 1 dries the objects to be washed (clothes) stored in the water tank 21. Then, the washing machine 1 sends the air that has passed through the inside of the outer tub 22 and the inside of the water tub 21 from the drying duct 81 to the blowing duct 73 by the fan 72, and repeats the same operation.

  Further, as shown in FIG. 4, the washing machine 1 includes a water supply hose 51a, a charging hose 54a, and a cleaning hose 61a. The water injection hose 51 a is a hose for flowing water from the water supply unit 20 to the outer tub 22. The charging hose 54 a is a hose for flowing water from the first charging unit 31 (manual charging unit) to the outer tub 22. The cleaning hose 61 a is a hose for flowing water from the water supply unit 20 to the outer tub 22 when cleaning the water tub 21, the outer tub 22, and the like. The water supply hose 51a constitutes a part of a first water supply path 51 (see FIG. 6) described later. The charging hose 54a constitutes a part of a charging path 54 (see FIG. 6) described later. The cleaning hose 61a constitutes a part of a first cleaning path 61 (see FIG. 6) described later.

  The washing machine 1 also includes a discharge path 63 for discharging water and a drain valve 65 for opening and closing the discharge path 63.

  The washing machine 1 also includes a case 41 that accommodates a tank 42 in the upper front portion of the housing 11. The tank 42 has a structure that can be removed and attached to the case 41 by moving it in the vertical direction. The case 41 preferably has a structure that accommodates at least two tanks 42 for detergent and softener so that the detergent and softener can be automatically added to the water tank 21. .

  As shown in FIG. 5, the case 41 has a horizontally long rectangular shape in a front view and a vertically long rectangular shape in a side view. Therefore, the case 41 has a substantially rectangular parallelepiped shape whose overall shape is thin in the depth direction. The case 41 is arranged so as to extend in the vertical direction along the inner wall surface of the front panel 16 (see FIG. 4). A transport pump 46 is arranged below the case 41.

  One or both of the case 41 and the tank 42 is preferably a vibration damping member 45 that functions as a suppression unit that suppresses the vibration of the laundry treatment liquid contained in the tank 42 between the case 41 and the tank 42 (see FIG. 4). It is good to have Thereby, the washing machine 1 can suppress the washing treatment liquid stored in the tank 42 from shaking and jumping due to the vibration propagating from the drive device 23 and the like.

  The case 41 is attached to the upper front part of the housing 11, and is arranged so as to be sandwiched between the inner wall surface of the front panel 16 and the housing 11. Therefore, even if the vibration damping member 45 (see FIG. 4) is not provided, the washing machine 1 can suppress the shaking of the laundry processing liquid stored in the tank 42. However, by providing the vibration damping member 45 (see FIG. 4), the washing machine 1 can more efficiently suppress the shaking of the laundry processing liquid stored in the tank 42.

  In such a configuration, the second charging unit 32 and the tank 42 of the laundry processing liquid charging device 30 are arranged in front of the center of the water tank 21 (for example, the portion connected by the rotating shaft 23c (see FIG. 4)). There is. Further, the drying unit 71 (heater) is arranged behind the center of the water tank 21 so as to be separated from the second charging unit 32 and the tank 42.

  The outer tub 22 is provided with a pneumatic chamber 28a, and a water level sensor 28 for detecting the water level of the wash water stored in the outer tub 22 is provided above the pneumatic chamber 28a. The air duct 73 is provided with a temperature sensor 26a that detects the temperature of the air blown into the water tank 21 during the drying operation. A temperature sensor 26b that detects the temperature of the washing water and the temperature of the air drawn into the drying duct 81 during the drying operation is provided in the drop-in portion 22c of the outer tub 22. A temperature sensor 26c is provided between the drop-in portion 22c and the drain valve 65 to detect the temperature of the wash water and the temperature of the cooling water discharged from the discharge path 63 to the outside of the machine during the drying operation. An acceleration sensor 27 that detects vibration acceleration due to vibration of the outer tub 22 is provided on the upper side surface of the outer tub 22. The signals detected by the water level sensor 28, the temperature sensors 26a, 26b, 26c, and the acceleration sensor 27 are transmitted to the control device 100.

  The water quality sensor 35 (electrical conductivity detecting means) detects the electric conductivity of tap water before washing or during washing (washing, rinsing, dehydration), and the outer peripheral edge of the bottom wall 22d of the outer tub 22. Is located in. The water quality sensor 35 includes a synthetic resin base and a pair of electrodes 36A and 36B. The groove of the water quality sensor 35 extends in the radial direction S (normal direction) of the outer tub 22. Is located in.

  The surface from the peripheral wall portion 22e of the outer tub 22 to the bottom wall portion 22d of the outer tub 22 through the groove of the water quality sensor 35 is configured to be a substantially continuous surface. For example, in the dehydration process during the washing operation, a part of the rinse water discharged from the through hole 21aa of the water tank 21 to the outer tub 22 flows down along the peripheral wall portion 22e of the outer tub 22, and the groove portion of the water quality sensor 35 It flows through the bottom wall portion 22d of the tank 22.

<Piping path configuration>
Hereinafter, the configuration of the piping path of the washing machine 1 will be described with reference to FIG. FIG. 6 is a schematic diagram showing a piping path of the washing machine 1.

  As shown in FIG. 6, the washing machine 1 has a first water supply path 51, a second water supply path 52, a transport path 53, and a charging path 54 as piping paths used when washing an object to be washed (cloths). And are equipped with.

  The first water supply path 51 connects the water supply unit 20 and the first input unit 31 and supplies water from the water supply unit 20 to the first input unit 31.

  The second water supply path 52 connects the midway portion of the first water supply path 51 and the transfer path 53, and supplies water from the water supply unit 20 to the transfer path 53 via the first water supply path 51.

  The transport path 53 connects the tank 42 and the first input unit 31 and transports the laundry processing liquid discharged from the tank 42 via the transport pump 46.

  The charging path 54 connects the first charging unit 31 and the water tank 21 (outer tank 22), and charges the laundry treatment liquid and water from the first charging unit 31 to the water tank 21.

  A switching valve 64 is arranged at a connection point between the second water supply path 52 and the transport path 53. The switching valve 64 is a switching unit that switches the flow of fluid. The switching valve 64 (switching means) selectively switches between a direction in which the washing treatment liquid flows from the tank 42 to the transfer path 53 and a direction in which water flows from the second water supply path 52 to the transfer path 53.

  A transport pump 46 and check valves 47a and 47b for preventing backflow of fluid are arranged on the transport route 53. The check valves 47a and 47b are arranged on the upstream side (tank 42 side) and the downstream side (first charging section 31 side) of the transport pump 46, respectively.

  The washing machine 1 also includes a first cleaning path 61, a second cleaning path 62, and a discharge path 63 as piping paths used when cleaning the water tub 21, the outer tub 22, the case 41, and the like.

  The first cleaning path 61 connects the water supply unit 20 and the first charging unit 31 and supplies the cleaning water from the water supply unit 20 to the first charging unit 31. The second cleaning path 62 connects the middle part of the first cleaning path 61 and the case 41, and supplies the cleaning water from the water supply unit 20 to the case 41 via the first cleaning path 61. The discharge path 63 connects the case 41 and the drainage port 66 to drain water from the case 41.

  The discharge path 63 includes a drainage pipe 63a connecting the case 41 and the drying duct 81, a drainage pipe 63b connecting the drying duct 81 and the outer tub 22, a drainage valve 65 and a drainage port 66 provided in the outer tub 22. And a drainage pipe 63c for connecting with.

  The outer tank 22 is provided with a drain valve 65. By opening the drain valve 65, the washing machine 1 drains the laundry processing liquid and water from the drain port 66 to the outside via the drain pipe 63c.

  In the washing machine 1 as described above, when the automatic loading is performed (that is, when the washing treatment liquid is introduced into the aquarium 21 by the washing treatment liquid feeding device 30), the washing treatment liquid stored in the tank 42 is conveyed. It is conveyed from the tank 42 to the first charging section 31 through 53. Then, the washing machine 1 can put the conveyed washing treatment liquid into the aquarium 21 from the first feeding section 31 through the feeding path 54. Therefore, in the washing machine 1, the washing treatment liquid passes through the first charging unit 31 regardless of the manual charging and the automatic charging. Therefore, by passing the water through the first charging unit 31, the amount of water used at the time of charging the detergent is reduced. It can be reduced.

  The washing machine 1 conveys the laundry treatment liquid contained in the tank 42 from the tank 42 to the first loading unit 31 through the conveyance path 53. At that time, although a part of the laundry processing liquid remains in the transfer path 53, the water supplied from the second water supply path 52 transfers the laundry processing solution remaining in the transfer path 53 to the first input unit 31. be able to.

  Further, in the washing machine 1, the second water supply path 52 is connected to an intermediate part of the first water supply path 51. Therefore, in the washing machine 1, even if the conveyance path 53 is closed and the phenomenon that unintended pressure is applied to the conveyance path 53 occurs, the pressure applied to the conveyance path 53 is set to the first water supply path 51. It can be released to the outside (on the side of the water tank 21). Therefore, the washing machine 1 can reduce the pressure applied to the transport path 53 even if such a phenomenon occurs. As a result, the washing machine 1 can maintain the performance of the transport path 53 for a relatively long time.

  In addition, the washing machine 1 can wash the first charging unit 31 by flowing the cleaning water from the water supply unit 20 to the first charging unit 31 along the first cleaning path 61.

  The washing machine 1 can wash the case 41 by flowing washing water from the water supply unit 20 to the case 41 along the second washing path 62. In particular, the bottom of the case 41 is provided with a nozzle 41a (see FIG. 10) that fits in the lower portion of the tank 42, for example, but the nozzle 41a (see FIG. 10) can be washed.

  In addition, the washing machine 1 discharges the cleaning water supplied to the first cleaning path 61 to the aquarium 21 along the charging path 54, and drains the cleaning water supplied to the second cleaning path 62 to the drain pipe. It can be discharged to the aquarium 21 along 63a (via the drying duct 81). Therefore, the washing machine 1 can wash the water tub 21 and the outer tub 22.

<Construction of tank>
Hereinafter, the configuration of the tank 42 will be described with reference to FIGS. 7 to 10. 7 to 9 are perspective views showing the external configuration of the tank 42, respectively. FIG. 10 is a cross-sectional view showing the internal structure of the tank 42.

  As shown in FIGS. 7 to 9, the tank 42 has an upper surface cover 43 and a handle portion 44. FIG. 7 shows a state in which the charging port lid 43a is closed. FIG. 8 shows a state in which the charging port lid 43a is opened. FIG. 9 shows a state in which the top cover 43 is removed.

  The upper surface cover 43 is a cover member that covers the upper surface of the tank 42. The handle portion 44 is a member gripped by the user. The second charging unit 32 is provided on the upper surface cover 43 and is sealed by a charging port lid 43a. The insertion port lid 43a is configured to be openable and closable in the vertical direction from the front to the rear.

  The upper surface of the upper surface cover 43 is formed as an inclined surface that is inclined downward from the rear toward the front. In such an upper surface cover 43, the length of the input port lid 43a can be increased in the opening / closing direction as compared with the case where the upper surface is formed as a horizontal surface. Further, such an upper surface cover 43 can largely project the input port lid 43a upward when the input port lid 43a is opened. Therefore, such an upper surface cover 43 can improve the operability of the opening / closing operation of the loading port lid 43a, and can easily open / close the loading port lid 43a.

  As described above, the tank 42 has a structure that can be freely removed and attached to the case 41 (see FIG. 5) by moving it in the vertical direction. The user can easily remove the tank 42 from the case 41 by gripping the handle portion 44 and pulling it upward. As shown in FIG. 9, the top cover 43 can be removed from the tank 42.

  Since the user can remove the tank 42 from the case 41 and the top cover 43 from the tank 42, the case 41 and the top cover 43 can be easily washed by hand.

  As shown in FIG. 10, a discharge port 49 (through hole) is provided in the lower portion of the tank 42. The discharge port 49 has a structure that fits into a nozzle 41a provided in the case 41. As a result, the tank 42 can reliably deliver the laundry processing liquid to the transport path 53 (see FIG. 6). Inside the tank 42, a bottom surface portion that is inclined so as to descend toward the discharge port 49 is provided. A mesh mesh tank tank 48 having fine meshes is provided on the discharge port 49. Thereby, the washing machine 1 can prevent the foreign matter from flowing into the transport path 53 (see FIG. 6) even if the foreign matter is mixed in the tank 42.

<Injection operation of the laundry processing liquid into the second injection unit (automatic injection unit)>
As will be described below, the washing machine 1 according to the present embodiment has a structure in which it is easy to add the washing treatment liquid to the second input unit 32 (automatic input unit, input port). Here, first, with reference to FIG. 11A, an example will be described in which the washing machine 101 according to the comparative example throws the washing treatment liquid into the second throwing unit 32 (automatic throwing unit). After that, with reference to FIG. 11B, an example of a case where the washing machine 1 according to the present embodiment throws the washing treatment liquid into the second throwing unit 32 (automatic throwing unit) will be described. FIG. 11A is an explanatory diagram showing a state in which the washing treatment liquid is put into the washing machine 101 according to the comparative example. FIG. 11B is an explanatory diagram showing a state where the washing treatment liquid is put in the washing machine 1 according to the present embodiment.

  In addition, the washing machine 101 according to the comparative example shown in FIG. 11A has a second feeding unit 32 between the water feeding unit 20 (water feeding means) and the first feeding unit 31 (manual feeding unit), as in the conventional washing machine. This is a device in which the (automatic loading unit) is arranged.

  As shown in FIG. 11A, in the washing machine 101 according to the comparative example, the second loading unit 32 (automatic loading unit) is arranged behind the first loading unit 31 (manual loading unit). In the washing machine 101 according to such a comparative example, when the user puts the laundry treatment liquid into the second feeding unit 32, the housing 11 hits the body portion (or the bottom portion) of the refill container 91 of the laundry treatment liquid. . Therefore, in the washing machine 101 according to the comparative example, it is necessary to dispose the outlet of the refill container 91 at a relatively high position above the second input unit 32 and input the laundry processing liquid to the second input unit 32 in that state. There is. In the washing machine 101 according to the comparative example, since the washing treatment liquid is poured into the second feeding unit 32 from a relatively high position, the washing treatment liquid cannot be poured into the second feeding unit 32 well. It may spill. As a result, in the washing machine 101 according to the comparative example, there is a possibility that the area around the second input unit 32 may be soiled with the laundry processing liquid.

  On the other hand, as shown in FIG. 11B, in the washing machine 1 according to the present embodiment, the second loading unit 32 (automatic loading unit) is arranged in front of the first loading unit 31 (manual loading unit). . In such a washing machine 1 according to the present embodiment, when the user puts the washing treatment liquid into the second feeding unit 32, the casing 11 is placed on the body portion (or bottom portion) of the washing treatment liquid refill container 91. It never hits. Therefore, in the washing machine 1 according to the present embodiment, the discharge port of the refill container 91 can be attached to the second input unit 32 and the laundry processing liquid can be input to the second input unit 32. In the washing machine 1 according to the present embodiment as described above, since the washing treatment liquid is poured into the second feeding unit 32 from a relatively low position, the washing treatment liquid is thrown well into the second feeding unit 32 without zeroing. can do. As a result, the washing machine 1 according to the present embodiment can prevent the surroundings of the second input unit 32 from being soiled with the laundry processing liquid.

<Arrangement relationship between input port lid (first lid) and tank storage lid (second lid)>
Hereinafter, with reference to FIG. 12, an arrangement relationship between the charging port lid 43a and the tank storage lid 15 will be described. FIG. 12 is an explanatory diagram showing a positional relationship between the loading port lid 43a (first lid) and the tank storage lid 15 (second lid).

  As shown in FIG. 12, the washing machine 1 includes an inlet lid 43 a and a tank storage lid 15 on the upper front part of the housing 11. The charging port lid 43a is a first lid that seals the second charging portion 32. The tank storage lid 15 is a second lid that is larger than the charging port lid 43a and covers the charging port lid 43a. The charging port lid 43a (first lid) and the tank storage lid 15 (second lid) are configured to be opened and closed in the vertical direction from the front to the rear (see FIGS. 2 and 3).

  As shown in FIG. 12, the tank storage lid 15 (second lid) is arranged at a position where it abuts the input port lid 43a (first lid) when closed. Such a tank storage lid 15 can automatically close the charging port lid 43a by coming into contact with the charging port lid 43a even if the charging port lid 43a is opened when closed. That is, in the washing machine 1, even if the user forgets to close the input port lid 43a, the user can automatically close the input port lid 43a only by closing the tank storage lid 15.

<Control>
FIG. 13 is a functional diagram of the water quality sensor 35. The pair of electrodes 36A and 36B are connected to the coil 38a to form the resonance circuit 38. The coil 38a is magnetically coupled to the coil 39a, and the coil 39a is connected to the oscillation circuit 39. The pair of electrodes 36A and 36B, the coil 38a, the coil 39a, and the oscillation circuit 39 form the water quality sensor 35. The oscillation circuit 39 transmits a signal corresponding to the electric conductivity between the electrodes to a microcomputer (hereinafter, referred to as a microcomputer) 110 of the control device 100, and the characteristic changes depending on the capacitance of a capacitor that is a component, and reading is performed. The resistance value range of water quality that becomes easier changes.

  FIG. 14 is a functional block diagram illustrating the configuration of the controller 100 of the washer / dryer according to the present embodiment. The control device 100 mainly includes a microcomputer 110. The microcomputer 110 includes an operation pattern database 111, a process control unit 112, a rotation speed calculation unit 113, a clothing weight calculation unit 114, an electric conductivity measurement unit 115, a detergent amount / washing time determination unit 116, and a detergent state determination. A unit 117, a foaming determination unit 118, and a laundry processing liquid input determination unit 119 are provided.

  The microcomputer 110 has a function of calling from the operation pattern database 111 an operation pattern suitable for the operation course input from the operation switch 14 and starting washing and drying. The process control unit 112 has a function of controlling the operations of the washing process, the rinsing process, the dehydration process, and the drying process based on the operation pattern called from the operation pattern database 111.

  In each process, the process control unit 112 has a function of controlling the water supply unit 20, the drain valve 65, and the switching valve 64. Further, the process control unit 112 drives and controls the motor 23a of the drive device 23 through the motor drive circuit 121, switches the clutch mechanism 23b through the clutch drive circuit 122, and controls ON / OFF of the heater switch 123. Controls the energization of the heater 71, controls the fan 72 via the fan drive circuit 124, drives and controls the circulation pump 17 via the circulation pump drive circuit 125, and controls the conveyance pump 46 via the conveyance pump drive circuit 126. It has a drive control function.

  The rotation speed calculation unit 113 has a function of calculating the rotation speed of the motor 23a based on the detection value from the rotation detection device 24 that detects the rotation of the motor 23a.

  The clothes weight calculation unit 114 has a function of calculating the weight of the clothes in the water tank 21 based on the rotation speed calculated by the rotation speed calculation unit 113 and the detection value of the motor current detection device 25. Since the load for rotating the water tank 21 increases due to the increase in the weight of the clothes and a large amount of the motor current flowing through the motor 23a is required, the weight of the clothes can be calculated from the motor current of the motor 23a and the rotation speed. You can

  The conductivity measuring unit 115 has a function of measuring the conductivity of tap water and washing liquid using the detection value from the water quality sensor 35.

  The detergent amount / washing time determining unit 116 has a function of determining the amount of detergent and the washing time of clothes based on the conductivity measured by the conductivity measuring unit 115, which will be described in detail later.

  The detergent state determination unit 117 has a function of determining the state of the detergent based on the electric conductivity measured by the electric conductivity measuring unit 115, and the details will be described later.

  The foaming determination unit 118 has a function of determining the washing time, the amount of water, and the motor rotation speed according to the state of the washing liquid determined by the conductivity measuring unit 115 and the detergent state determination unit 117, and the details will be described later.

  The laundry treatment liquid addition determination unit 119 calls the operation pattern database 111 of the operation ON / OFF setting of the laundry treatment liquid introduction input from the operation switch 14, and the detergent amount / washing time determination unit 116 determines the detergent amount to be determined. Based on this, the transport pump drive circuit 126 has a function of controlling the transport pump 46.

  Next, with reference to FIG. 15, an operation process of the washer / dryer according to the present embodiment will be described. FIG. 15: is process drawing explaining the driving | operation process of the washing operation (washing-rinsing-dehydration) of the washing-drying machine which concerns on this embodiment.

  In step S1, the process control unit 112 accepts selection of a course of an operation process and input of setting (ON / OFF) of loading the laundry treatment liquid (course selection). Here, the user puts the laundry to be washed into the aquarium 21. When the user operates the operation switch 14, the process control unit 112 rotates the rotary blade 21b, and the clothing weight calculation unit 114 of the microcomputer 110 calculates the cloth amount of the clothing before water injection.

  In step S2, the process control unit 112 may contain air in the hose connected to the water supply unit 20, and discharges the compressed air into the outer tub 22 together with tap water.

  In step S3, the detergent amount / washing time determination unit 116 displays on the operation panel 14 the amount of detergent to be put in and the time required to complete washing, based on the amount of clothes and the water temperature and water hardness of tap water. To do. The water temperature and the hardness of the tap water are detected when the rinsing operation is performed last time (step S30), and are stored in the detergent amount / washing time determination unit 116 and used. Since the temperature and hardness of tap water do not change rapidly every day and only change gradually, it is possible to judge the amount of detergent using the temperature and hardness of tap water measured during the previous washing. It is possible. In addition, an initial value (for example, a water temperature of 15 ° C. and a hardness of 120 ppm) that does not deteriorate the washing performance is used during the first operation with the washer / dryer installed.

  Further, only when the setting of the washing treatment liquid introduction is ON in step S1, in step S3, the transport pump drive circuit 126 drives the transport pump 46 based on the detergent amount determined by the detergent amount / washing time determination unit 116. The washing processing liquid is controlled and passed through the delivery path 53, and the laundry processing liquid is supplied to the first input unit 31.

  In step S4, first, the process control unit 112 opens the water supply unit 20, supplies the detergent and water to the first charging unit 31 and the outer tub 22, and closes the water supply unit 20 when a predetermined water level is reached. Speak. Further, at the time of supplying water to the first input unit 31, since the water is branched into the first water supply route 51 and the second water supply route 52, the washing treatment liquid remaining on the transfer route 53 can be transferred to the first input unit 31. it can.

  In step S5, the temperature of the water containing the supplied detergent is measured by the temperature sensor 26b (or the temperature sensor 26c), and the conductivity is measured by the water quality sensor 35 after the mixing step of making the detergent and water uniform. To do.

  Here, the detergent state determination unit 117 in water supply to the outer tub in step S4, water temperature in step S5, and conductivity measurement will be further described with reference to FIG.

  FIG. 16 is a flowchart for determining the detergent melting operation time based on the water temperature and the electric conductivity of tap water.

  In step S51, the temperature of the water containing the supplied detergent (water temperature) is measured by the temperature sensor 26b (or the temperature sensor 26c), and in step S52, the detergent state determination unit 117 causes the detergent state determination unit 117 to determine whether the detergent type is liquid detergent or powder. Determine if it is a detergent (detergent state determination). The detergent state determination will be described later with reference to FIG. When the measured water temperature is higher than the threshold value t1 (Yes in step S53), the process proceeds to step S54, and when the measured water temperature is equal to or lower than the threshold value t1 (No in step S53), the process proceeds to step S55. Here, it was experimentally found that the degree of melting of the detergent largely changes around 10 ° C. Therefore, in this embodiment, 13 ° C., which is slightly higher than 10 ° C., is set as the threshold t1 in consideration of the variation.

  When the liquid detergent is determined in step S54 (Yes), the detergent dissolving time T0 is set (step S56). If the liquid detergent is not determined (No in step S54), the detergent dissolving time T1 (step S57) is set. If it is determined to be a liquid detergent in step S55 (Yes), the detergent dissolving time T2 (step S58) is set. If it is not determined to be a liquid detergent (step S55 No), the detergent dissolving time T3 is set (step S59). .

  Considering the solubility of liquid detergents and powder detergents in water, it is better to make the detergent dissolving time T1 longer than the detergent dissolving time T0, or the detergent dissolving time T3 longer than the detergent dissolving time T2, and the lower the water temperature is. Since the detergent is less likely to dissolve in water, it is preferable that the detergent dissolving time T2 is longer than the detergent dissolving time T0, or the detergent dissolving time T3 is longer than the detergent dissolving time T1.

  Further, when the setting of the washing treatment liquid input is ON in step S1, the detergent added to the outer tub 22 is a liquid detergent, and therefore the rotation speed of the motor 23a (circulation pump 17 in step S56 and step S58). Energy consumption) can be suppressed and the energy consumption can be reduced.

Further, when the setting of the washing treatment liquid addition is ON in step S1, the determinations in step S54 and step S55 are (Yes), and the detergent dissolving time is the detergent dissolving time T0 and the detergent dissolving time T2. However, if the powder detergent is thrown into the first charging section 31 by the user's erroneous operation, the determinations in steps S54 and S55 are (No), and the detergent melting time is the detergent melting time T1 and It can also be determined as the detergent dissolving time T3.

  According to the present embodiment, it is possible to set the detergent melting time according to the type of detergent and the water temperature, and shorten the detergent melting time when liquid cleaning is used or when the water temperature is high, so that the entire operating time can be reduced. Can be shortened.

  Next, the conductivity measuring unit 115, the detergent state determining unit 117, and the foaming determining unit 118 in the detergent state determination in step S52 will be described with reference to FIG.

  FIG. 17 is a flow chart in which the detergent type is determined based on the electric conductivity, the foaming easiness is estimated from the result, and the washing time, the water amount, and the motor rotation speed are switched.

  In the mixing process of step S520, the process control unit 112 controls the motor 23a via the motor drive circuit 121 to rotate the water tank 21 and the rotating blades 21b, thereby supplying water to the outer tank 22 and the water tank 21. It is possible to make the detergent and water uniform by generating a water flow in the detergent and water.

  In step S520, in the case of a powder detergent, since it is difficult to make the detergent and water uniform, it is necessary to control the rotation speed of the motor 23a to be high. However, in the case of a liquid detergent, the detergent and water are easily made uniform, The rotation speed of the motor 23a can be kept low. Further, in the present embodiment, the equalizing means by rotating the water tank 21 and the rotary blades 21b is implemented in step S520, but the means for rotating the rotary blades 21b while fixing the water tank 21 and the circulation pump 17 are used for equalization. You may implement a mixing process by a means etc.

  Further, since step S520 is a step of stirring the detergent and water at the highest concentration throughout the washing step, it is possible to suppress the risk of foaming by suppressing the rotation speed of the motor 23a.

  In the present embodiment, when the setting of the laundry processing liquid input is ON in step S1, the detergent charged in the outer tub 22 is a liquid detergent, so that the rotation speed of the motor 23a in step S520 is suppressed. It becomes controllable.

  In step S <b> 521, the conductivity measuring unit 115 measures the uniform conductivity of water with the water quality sensor 35. When measuring the electric conductivity, in order to improve the measurement accuracy, the water supply to the outer tub 22 by the water supply unit 20, the circulation by the circulation pump 17, the rotation of the water tub 21 and the rotary blades 21b are stopped, and the outer tub is stopped. It is desirable that the water flow in 22 and the water tank 21 be settled and that the high-concentration cleaning liquid not be foamed.

  Therefore, since the water flow generated in the outer tub 22 is weakened by suppressing the rotation speed of the motor 23a to be low in step S520, the time until the rotation of the motor 23a is stopped and the water flow in the outer tub 22 is reduced. It is possible to shorten the time until it is settled, and to improve the conductivity measurement system in a short time. Here, in the present embodiment, the rotation speed of the water tank 21 at the predetermined water level before the detergent determination is set to 30 rpm or more and 70 rpm or less. As a result, the foaming of the detergent liquid is suppressed, the accuracy of the detergent determination is maintained, and the time until the water flow stops can be shortened.

  When the automatic detergent setting is OFF, powder detergent may be added, but in that case, if the rotation speed of the water tank 21 is not above a certain level, the powder detergent will not melt and the detergent determination will be difficult. On the other hand, when the automatic detergent setting is ON, the powder detergent is not added, so that the detergent determination can be performed even if the rotation speed of the water tank 21 is low. Therefore, in the present embodiment, when the detergent automatic addition setting is ON, the rotation speed of the water tank 21 before the detergent determination is made lower than when it is OFF. Specifically, when the automatic detergent setting is OFF, it is set to 80 rpm or less, preferably about 70 rpm, and when the automatic detergent setting is set to ON, it is set to 50 rpm or less, preferably about 35 rpm.

  FIG. 20 is a result of measuring the variation in the electric conductivity depending on the rotation speed of the motor 23a in step S520. It is possible to suppress the maximum / minimum detection variation in the electric conductivity by controlling the low-speed rotation with respect to the maximum / minimum detection variation in the electric conductivity in the high-speed rotation.

  If the electric conductivity is smaller than the threshold value EC1 in step S522 (Yes), the process proceeds to step S524, it is determined that the liquid detergent (concentration) is selected, and the characteristics of the water quality sensor 35 are switched accordingly. When the electric conductivity is equal to or higher than the threshold value EC1 (No in step S522) and smaller than the threshold value EC2 (Yes in step S523), the process proceeds to step S525, and the liquid detergent (two rinses) is determined. If the electric conductivity is equal to or higher than the threshold value EC2 (No in step S523), the process proceeds to step S526, it is determined that the detergent is a powder detergent, and the washing time, the amount of water, and the motor rotation number are changed to switch the washing method. For example, powder detergents tend to foam, so compared to liquid detergents (concentration), washing time is shortened, the amount of water is increased to dilute the detergent concentration, and the rotation speed of the motor is reduced to reduce foaming. By making it difficult to make, it is possible to suppress foaming and prevent deterioration of cleaning performance and insufficient rinsing. Since liquid detergent (concentration) tends not to foam, it is possible to increase foaming by increasing the washing time, decreasing the amount of water and increasing the detergent concentration, or increasing the number of rotations of the motor, compared to powder detergent. The cleaning performance can be improved while the risk is low. Liquid detergents tend to have an electric conductivity between powder detergents and liquid detergents (concentration), so an appropriate washing method can be achieved by using an intermediate washing method. Therefore, the washing method can be changed to the optimum washing method by detecting the detergent type instead of the foaming itself, and it is not necessary to install a sensor for foaming detection. The same cleaning method may be used regardless of the type of liquid detergent regardless of whether the liquid detergent is a concentrated type.

  Although not shown, the bubbling determination unit 118 detects not only the detergent type but also factors such as water temperature, water hardness, and bath water usage related to bubbling ease in steps S524, S525, and S526. Therefore, the accuracy of the foaming determination unit 118 can be improved.

  A concentrated type liquid detergent that requires only one rinsing operation has a lower electric conductivity than a liquid detergent having two rinsing operations. Therefore, the number of times of rinsing is changed based on the determination result of the foaming determination unit 118. You may.

  In step S6 of FIG. 15, the process control unit 112 drives the motor 23a for the detergent dissolving time determined in step S5 to rotate the water tank 21 and the rotating blades 21b, and dissolves the detergent using the generated water flow. This produces a highly concentrated detergent solution. The method of producing the high-concentration detergent solution is not limited to the method of rotating both the water tank 21 and the rotary blades 21b, but only the rotary blades 21b are rotated or the reverse rotation of the circulation pump 17 is used. May be

  In step S7, the conductivity measuring unit 115 measures the conductivity of the generated detergent solution with the water quality sensor 35, and the detergent state determining unit 117 revises the determined detergent type, and at the same time, the detergent that has actually been introduced. To determine the concentration of. Since the generated detergent solution dissolves the detergent in a fixed amount of water, a change in the concentration of the detergent can be detected as a change in the conductivity. When the amount of the detergent added is large (the concentration of the detergent is high), the electric conductivity is higher than when the amount of the detergent is input (the concentration of the detergent is low). Therefore, even when the foaming determination unit 118 determines that the rinsing operation is once, it is possible to change the rinsing operation to two times when the amount of detergent added is large. In this step S7, in order to improve the measurement accuracy of the electric conductivity, the water tank 21 and the rotor blades 21b that have been rotating for dissolving the detergent are once stopped, and then the rotation is restarted in the next step S8. . Therefore, if this step S7 is skipped, it is possible to further shorten the entire operation time.

  In step S8, the process control unit 112 supplies water from the water supply unit 20 to a water amount (water level) smaller than the water amount in the subsequent main washing process (S13 to S19) while rotating the water tank 21 and the rotary blade 21b. Further, since the water is also supplied to the first feeding unit 31 at the same time, the transport path 53 can be simultaneously cleaned with the water branched to the first water supply path 51 and the second water supply path 52.

  In step S9, the clothes are washed in a state where the amount of water is smaller than the amount of water in the subsequent main washing step (S13 to S19), that is, with a high-concentration detergent solution. Hereinafter, an operation in which a high-concentration detergent solution penetrates into clothes while rotating the rotary blades 21b by the drive device 23 in a state of lower water level than in the main washing step is referred to as high-concentration washing. Although the high-concentration cleaning step in the present embodiment is operated at a constant water level without water supply, it may be operated while water is supplied. However, the high-concentration washing step does not include the step performed in a separate step (discontinuously) before reaching a predetermined water level, such as the detergent dissolving operation in step S6.

  Further, in the present embodiment, in the case of the liquid detergent and the liquid detergent (concentration), high-concentration washing is performed while rotating the motor (rotating blade 21b) at a higher rotation speed than in the case of the powder detergent. This makes it possible to suppress foaming when a powder detergent is used during high-concentration cleaning that easily causes foaming, and to further enhance the cleaning power when a liquid detergent is used.

  Furthermore, in the present embodiment, the operating time of the high-concentration cleaning step, which was conventionally about 30 seconds, is set to be about 2 minutes and 30 seconds. Thus, by prolonging the operating time of the high-concentration washing process, it is possible to effectively remove oil stains on food. On the other hand, it is also necessary to consider the "time saving" need to shorten the overall washing time. Therefore, it is desirable to increase the operating time of the high-concentration cleaning process while shortening the operating time of the main cleaning process.

  FIG. 18 is a graph showing the results of testing what happens to the cleaning performance (cleaning ratio) when the ratio of the operating time of the high-concentration cleaning process to the main cleaning process is changed. According to FIG. 18, the operating time of the high-concentration cleaning step (ratio of high-concentration cleaning) with respect to the operation time of the main-cleaning step is set to 15% or more, so that cleaning is performed more than in the conventional case (ratio of high-concentration cleaning = 4%). The ratio can be increased. Further, if the ratio of high-concentration cleaning is set to 20% or more, a significant improvement in cleaning ratio can be expected. On the other hand, if the ratio of the main washing is too small, the cleaning ratio is deteriorated. Therefore, the ratio of the high-concentration cleaning is preferably 35% or less.

  In the present embodiment, when the powder detergent is determined by the determination means (electric conductivity detection means for detecting the electric conductivity of the liquid in the outer tub 22) for determining the type of the introduced detergent, the liquid detergent The rotation speed of the rotary blade 21b in the high-concentration cleaning step is set lower than that in the case of the determination. Therefore, even in the case of a powdery detergent that easily foams, it is possible to extend the operating time of the high-concentration cleaning step while suppressing foaming, and to effectively remove oil stains.

  Next, a case of a washing machine in which the circulation pump 17 is not provided will be described. Without the circulation pump 17, it becomes difficult to spray a high-concentration detergent solution onto the laundry from above, especially when the water level is low. For this reason, there is a difference in water content between the upper part and the lower part of the laundry, which slows down the movement of the laundry and may cause uneven washing. Therefore, in the present embodiment, the washing water is sprayed to the central portion and the end portion (near the inner wall) in the water tank 21 early so that the stacked laundry in the central portion and the movement of the laundry stuck to the end portion are moved. The difference in water content of the laundry was suppressed even when the water level was low. A specific structure will be described below.

  FIG. 19 shows the state of the wash water that has poured down from the water injection hose 51a into the aquarium 21. As shown in the figure, the wash water is sprayed on the central portion (Wa), the end portion (Wb), and the intermediate portion (Wc) between the end portion and the central portion of the water tank 21 in a substantially straight line. This makes it possible to sprinkle not only the edges but also the central part over the entire washing tub at the water supply stage, making it easier for water to be contained in the entire clothes, making the cloth move better during cleaning, and suppressing uneven cleaning.

  In step S10, the clothing weight calculator 114 first calculates the weight of the clothing containing water. Then, the cloth quality (water absorption) of the garment is determined from the weight of the garment containing no water calculated in step S1 and the weight of the garment containing water calculated in step S10. The following steps are controlled according to the judged cloth quality.

  In step S11, the water temperature before the washing process is acquired, and when the water temperature is high, the chemical action of the detergent is improved and the washing power is improved, so that the washing time can be shortened. By measuring the water temperature before the washing process, for example, the accurate water temperature can be detected even during washing using the remaining hot water in the bath, and the washing time can be changed.

  When the measured water temperature is high or the water hardness is low, it is possible to shorten the washing time by skipping step S18 or step S19.

  In this way, the easiness of foaming during the washing step is controlled (shortened or extended) by measuring the electric conductivity of the washing liquid using the water quality sensor 35 and controlling the foaming determination unit 118 to control the washing time. Will be possible. The detergent amount / washing time determination unit 116 stores in advance a table for determining the washing time (shortening or extension time) depending on the degree of dirt. Note that a plurality of threshold values may be set according to the cloth amount calculated in step S1.

  When the main washing is completed, the unbalanced state of the clothes is monitored in step S20, and it is determined whether or not to shift to dehydration.

  In step S21, the process control unit 112 opens the drain valve 65 to drain the wash water in the outer tub 22. After the drainage is completed, in step S22, the process control unit 112 rotates the water tank 21 to dehydrate the water (wash water) contained in the clothes.

  The process control unit 112 closes the drain valve 65 and opens the water supply unit 20 to supply the rinsing water to the water tank 21. Then, the rinsing water is sprayed on the clothes in the water tank 21 while rotating the water tank 21 (step S23).

The process control unit 112 closes the water supply unit 20 while rotating the water tank 21 to dehydrate the rinse water from the clothes (step S24).
The process control unit 112 opens the water supply unit 20 while rotating the water tank 21, and sprays rinse water on the clothes in the water tank 21 (step S25).

  The process control unit 112 closes the water supply unit 20, stops the water tank 21, opens the drain valve 65, and drains the rinse water in the outer tank 22 (step S26). After the drainage is completed, the process control unit 112 rotates the water tank 21 to dehydrate the water (rinsing water) contained in the clothes (step S27).

  Execution of the rotary shower rinse in step S23 and step S25 is determined by the foaming determination unit 118, and when the number of rinses is determined to be 1, the process control unit 112 is instructed to skip step S23 to step S27. Therefore, it is possible to perform only one rinse operation.

  When the dehydration is normally completed, there is no water in the outer tub 22, and the water quality sensor 35 is operated to measure the conductivity without water (step S28). The electric conductivity measured here is stored in the electric conductivity measuring unit 115 as an initial value, and is used for judging a failure of the water quality sensor 35 and correcting secular change due to adhesion of dirt to the electrode portion.

The process control unit 112 closes the drain valve 65 and opens the water supply unit 20, and supplies rinsing water to the outer tub 22 up to the water level at which the water hardness is detected (step S29).
The conductivity measuring unit 115 operates the water quality sensor 35 and the temperature sensor 26b (or the temperature sensor 26c) to measure the water temperature and conductivity of the rinse water to calculate the water hardness (step S30). The water temperature and the water hardness measured here are stored in the detergent amount / washing time determination unit 116, and are used to determine the next detergent amount and washing time.

  Further, only when the setting of the washing treatment liquid input is ON in step S1, the detergent amount / washing time determination unit 116 calculates the water hardness and the water hardness by measuring the water temperature and the conductivity of the rinse water in step S30. Based on the determined amount of the finishing agent, the transfer pump drive circuit 126 controls the transfer pump 46 to pass the transfer path 53 and supply the washing treatment liquid to the first charging unit 31.

  The process control unit 112 supplies the water to the set water level (step S31), rotates the rotary blades 21b (or the water tank 21) in a state where the rinse water is stored in the outer tub 22 and stirs the clothes while the water supply unit 20 is being stirred. The valve is opened and the finishing agent is put into the water tank 21 (step S32). Further, at the same time, water is supplied to the first feeding unit 31 at the same time, so that the first water feeding route 51 and the second water feeding route 52 are branched, and the washing treatment liquid remaining on the feeding route 53 is conveyed to the first feeding unit 31. can do.

  During steps S33 to S35 (two rinsing steps), the water quality sensor 35 is operated to detect the amount of change in the conductivity of the rinse water, so that the degree of rinsing of the laundry can be detected. By the way, since the water quality sensor 35 in the present embodiment is provided in the lower portion (bottom portion) of the outer tub 22, the water quality sensor 35 is in a state of being submerged during the rinsing step, and the conductivity of the rinse water is measured. be able to.

  As described above, by measuring the conductivity of the rinsing water using the water quality sensor 35 during the rinsing step, the rinsing time can be controlled (shortened or extended). A table for determining the rinsing time (shortening or extending time) from the amount of change in the conductivity of the rinsing water is stored in advance. Further, the change amount of the conductivity of the rinse water may be determined by comparing it with the conductivity of the tap water measured in step S30.

  The amount of change in the conductivity of the rinse water can be used to increase or decrease the number of rinses in addition to shortening or extending the rinse time. Therefore, the detergent state determination unit 117 determines that the liquid is a concentrated type detergent that requires only one rinse operation, and the foaming determination unit 118 determines that the rinse operation is insufficient even when the rinse operation is determined to be one. At times it is possible to carry out additional rinse operations.

  The timing for operating the water quality sensor 35 during the rinsing process is not limited to the time from step S33 to step S35, and the rinsing time can be controlled (shortened or extended) by operating at the time of step S23 or step S25. Good.

  In step S23 or step S25, the rinsing time may be controlled (shortened or extended) depending on the cloth quality of the clothes determined in step S10.

  When the stored rinsing is completed, the unbalanced state of the clothes is monitored to determine whether or not the final dehydration is to be performed (step S36).

  The process control unit 112 opens the drain valve 65 to drain the rinse water in the outer tub 22 (step S37). In step S37, in order to stabilize the start-up during dehydration, the process may proceed to step S38 (dehydration step) with a certain amount of rinse water remaining.

  The process control unit 112 rotates the water tank 21 at high speed to dehydrate the water contained in the clothes (step S38). At the time of this step S38 (dehydration process), it is possible to determine the amount of water contained in the laundry by measuring the water dewatered from the clothes using the water quality sensor 35. The water contained in the laundry is separated from the laundry by rotating the water tub 21 during the dehydration process, and is discharged from the through hole 21aa of the water tub 21 toward the inner surface of the peripheral wall portion 22e of the outer tub 22. The water discharged to the peripheral wall portion 22e flows down on the inner surface of the peripheral wall portion 22e by the action of gravity and flows into the groove portion of the water quality sensor 35. As a result, the water quality sensor 35 can detect the electric conductivity of water during dehydration.

  That is, in the water quality sensor 35 at the time of dehydration, when the water flows into the groove of the water quality sensor 35, the detection value (conductivity) changes according to the amount of water passing through. For example, when the laundry has a high water absorption property such as a bath towel, the amount of water discharged increases and the detection value (electric conductivity) increases. On the other hand, for example, when the laundry has a low water absorption such as a shirt, the amount of water discharged is small and the detection value (electric conductivity) is low.

  As described above, by measuring the electric conductivity of the water dehydrated from the clothes, which is measured by using the water quality sensor 35 during the dehydration process, the dehydration time can be controlled (shortened or extended). The detergent amount / washing time determination unit 116 stores in advance a table for determining the dehydration time (shortening or extension time). Note that a plurality of threshold values may be set according to the cloth amount calculated in step S1.

  The timing of operating the water quality sensor 35 during the dehydration process is not limited to the time of step S38, and the dehydration time is controlled (shortened or extended) by operating during the other dehydration process steps S22, S24, and S27. ) May be.

<Main features of control>
As described above, in the washing / drying machine 1 according to the present embodiment, when the setting of the washing treatment liquid input is ON in step S1, the detergent to be put into the outer tub 22 is a liquid detergent, and thus step S520. It becomes possible to control by controlling the rotation speed of the motor 23a. Thereby, since the water flow generated in the outer tub 22 becomes weaker, the time until the rotation of the motor 23a is stopped in step S521 and the time until the water flow in the outer tub 22 is stopped can be shortened, The measurement system of conductivity can be improved in a short time.

  Further, by measuring the conductivity of water containing detergent, it is determined whether the detergent type is a liquid detergent or a powder detergent (see S522 and S523), and when it is determined that the detergent is not a liquid detergent (No in S54, or , No in S55), the detergent dissolving time is set longer than that of the liquid detergent. As a result, the detergent dissolving action will be longer than that of the liquid detergent, and the undissolved residue of the powder detergent can be prevented and the highly concentrated detergent solution can be evenly distributed during the pre-washing process, improving the washing performance. it can.

  When it is determined that the liquid detergent is used (Yes in S54 or Yes in S55), the detergent melting time is set to be short to shorten the detergent melting operation time, and the circulation pump 17 (or the water tank 21, Alternatively, the driving time of the rotary blade 21b) can be shortened or the rotational speed can be suppressed to reduce energy consumption.

  In addition, in the present embodiment, the temperature of the water containing the detergent is measured, and the time period for dissolving the detergent is changed according to the water temperature. (See S56, S57, S58, S59). That is, when the water temperature is higher than the threshold value t1 and the detergent is easily melted, the detergent melting time is set to T0 (S56) for liquid detergent and T1 (S57) for powder detergent. When the water temperature is below the threshold value t1 and the detergent is difficult to dissolve, the detergent dissolving time is set to T2 (S58) for liquid detergent and detergent dissolving time T3 (S59) for powder detergent. In this way, the detergent dissolving time is set longer than that of the liquid detergent (T1> T0, T3> T2) and short when the water temperature is high (T0 <T2, T1 <T3). In addition to shortening the time, the driving time of the circulation pump 17 (or the washing / dehydrating tub 8 or the rotary vanes 8a) can be shortened, and the rotational speed can be suppressed to reduce the energy consumption.

  Further, when the conductivity of the water containing the detergent is lower than the threshold value EC1 (for example, in the case of a concentrated type liquid detergent in which the rinsing operation may be performed once) (Yes in S522), the number of rinsing operations is set to 1 (S524). If the electric conductivity is equal to or higher than the threshold value EC1 (for example, when the rinsing operation is performed twice with the liquid detergent) (No in S522), the number of rinsing operations is set to two (see S525 and S526). There is. In this way, the state of the detergent (kind of detergent) can be determined based on the electric conductivity, and the number of rinsing operations can be appropriately determined. Therefore, the washing operation time can be shortened and the motor 23a or the like during the rinsing process can be shortened. It is possible to reduce the amount of water used by shortening the operation time of, or reducing the number of revolutions to reduce energy consumption.

  Here, it is desirable that the conductivity measurement of the water containing the detergent is performed before the detergent melting operation (S6) and the time of the detergent melting operation is set depending on the type of the detergent. The water supplied for the detergent dissolving operation (S6) is a constant amount, and the detergent concentration is high because it is smaller than the water amount in the main washing step (S13 to S19). Liquid detergent, liquid detergent, powder detergent) can be determined so that the difference in conductivity can be obtained. By executing the detergent melting operation (S6) based on this determination result and then measuring the electric conductivity again (S7), it is possible to check again whether the determination result of the detergent type is correct or not. Since the amount (concentration of detergent) can also be measured as a difference in electric conductivity, the discriminability of the detergent state can be made suitable.

  In addition, the detergent state determination unit 117 corrects the electrical conductivity thresholds EC1 and EC2 based on the electrical conductivity (hardness) measured in step S30 during the previous washing operation and the water temperature measured in step S5. That is, the threshold value EC1 and the threshold value EC2 are set to be large when the water temperature is high or the electric conductivity (hardness) of water is high.

  In this way, the threshold value of the electric conductivity can be corrected by the water temperature or the electric conductivity (hardness) of the water, so that the detergent state can be appropriately determined.

  In the present embodiment, the number of times of rinsing operation is changed based on the electric conductivity of the washing liquid, but, for example, the amount of water used during rinsing operation may be changed. Specifically, the higher the conductivity, the more the amount of water used in the rinsing operation may be increased. That is, when a large amount of detergent is added (the detergent concentration is high), the detergent may foam more than necessary during the rinsing operation, and the foaming of the detergent can be reduced by increasing the amount of water used. . Further, the operating time and the amount of water used in the prewashing step and the main washing step may be changed based on the electric conductivity of the washing liquid.

  As described above, the washing machine according to the present embodiment has been described using the vertical type washer / dryer in which the rotation axis of the washing / dehydrating tub is substantially vertical, but the present invention is not limited to this. The drum type washer / dryer having a rotation axis of 1) may be a substantially horizontal direction, or may be a vertical type washer or a drum type washer having no drying function.

  Further, the water quality sensor 35 (electrical conductivity detecting means) is not limited to the configuration of the present embodiment, and may be any configuration capable of detecting the electrical conductivity of the detergent liquid. For example, although it has been described that the capacitance of the capacitor of the oscillation circuit 39 is changed and the characteristic is switched, a resistor or a coil may be used instead of the capacitor.

<Main features of washing machine>
Since the conventional washing machine has the following problems, the present embodiment intends to provide the washing machine 1 in consideration of solving the problems.

  (1) In a conventional washing machine, a hose connected to a water tub (washing / dehydrating tub) is provided in each of the manual input unit and the washing treatment liquid input device. That is, in the conventional washing machine, the first system hose connecting the manual loading part and the water tank (washing / dehydrating tank) and the second system connecting the washing treatment liquid charging device and the water tank (washing / dehydrating tank) It was equipped with multiple hoses. Since such a conventional washing machine has a large number of hoses, there is a problem that the risk of water leakage due to hose disconnection or hose breakage is relatively high.

  On the other hand, as shown in FIG. 6, the washing machine 1 according to the present embodiment conveys the laundry treatment liquid stored in the tank 42 from the tank 42 to the first input unit 31 through the conveyance path 53, The water is supplied from the first charging section 31 to the water tank 21 through the charging path 54.

  In the washing machine 1 according to the present embodiment as described above, the hose that connects the laundry processing liquid charging device 30 and the water tank 21 can be removed. Therefore, the washing machine 1 according to the present embodiment can reduce the risk of water leakage due to the removal of the hose or the breakage of the hose by the amount of the deleted hose, as compared with the conventional washing machine. As a result, the washing machine 1 according to the present embodiment can reduce the risk of water leakage to half that of the conventional washing machine, and the reliability can be improved accordingly.

  (2) In the conventional washing machine, it is necessary to separately supply water to both the manual charging unit and the washing treatment liquid charging device at the time of charging the detergent, so that the amount of water used at the time of charging the detergent is relatively large. There were challenges.

  On the other hand, as shown in FIG. 6, in the washing machine 1 according to the present embodiment, since the water supplied to the washing treatment liquid charging device 30 is supplied to the first charging unit 31, the amount of water used when charging the detergent. Can be reduced. As a result, the washing machine 1 according to the present embodiment can reduce the amount of water used at the time of introducing the detergent to, for example, about half that of the conventional washing machine, and the use cost can be reduced accordingly.

  (3) In the conventional washing machine, the water supply means is arranged in the upper rear part of the housing, and the manual throwing part is arranged in front of it. Then, the tank and the charging unit (automatic charging unit) of the washing treatment liquid charging device are arranged between the water supply means and the manual charging unit and at a position lateral to the water tank (washing / dehydrating tank). Therefore, in the conventional washing machine, the loading part (automatic loading part) of the washing treatment liquid charging device is arranged at a place away from the position where the user stands. Therefore, the conventional washing machine has a problem in that it is difficult for the user to add the washing treatment liquid when the user puts the washing treatment liquid in the automatic feeding unit, and the usability is poor.

  On the other hand, as shown in FIG. 5, in the washing machine 1 according to the present embodiment, the second loading unit 32 (automatic loading unit) is arranged near the position where the user stands. Therefore, the washing machine 1 according to the present embodiment can easily add the washing treatment liquid to the second input unit 32 (automatic input unit). The washing machine 1 according to the present embodiment as described above can be improved in usability.

  (4) In the conventional washing machine, the automatic loading part of the washing treatment liquid loading device is arranged behind the manual loading part. Therefore, in the conventional washing machine, when the user holds the refill container for the laundry treatment liquid and puts the laundry treatment liquid in the automatic loading unit, the casing hits the body portion (or bottom portion) of the refill container. Therefore, in the conventional washing machine, it is necessary to arrange the discharge port of the refill container at a relatively high position above the automatic charging unit and to charge the washing treatment liquid into the automatic charging unit in this state. In such a conventional washing machine, since the washing treatment liquid is poured into the automatic feeding part from a relatively high position, the washing treatment liquid cannot be well poured into the automatic feeding part and may be spilled. There was a problem.

  On the other hand, as shown in FIG. 11B, in the washing machine 1 according to the present embodiment, the second loading unit 32 (automatic loading unit) is arranged in front of the first loading unit 31 (manual loading unit). Therefore, in the washing machine 1 according to the present embodiment, the casing 11 is refilled when the user holds the refill container 91 for the laundry processing liquid and inserts the laundry processing liquid into the second loading unit 32 (automatic loading unit). It does not hit the body (or bottom) of the container 91. Therefore, in the washing machine 1 according to the present embodiment, the discharge port of the refill container 91 can be attached to the second input unit 32 and the laundry processing liquid can be input to the second input unit 32. In the washing machine 1 according to the present embodiment as described above, since the washing treatment liquid is poured into the second feeding unit 32 from a relatively low position, the washing treatment liquid is thrown well into the second feeding unit 32 without zeroing. can do. As a result, the washing machine 1 according to the present embodiment can prevent the surroundings of the second input unit 32 from being soiled with the laundry processing liquid.

  (5) In the conventional washing machine, when the user puts the washing treatment liquid into the automatic feeding part, the washing treatment liquid may be spilled on the operation panel, which may cause malfunction of the buttons and the touch panel. There was a problem.

  On the other hand, in the washing machine 1 according to the present embodiment, as described in the item (4), the washing treatment liquid can be properly put into the second feeding unit 32 (automatic loading unit) without being zeroed. . Therefore, in the washing machine 1 according to the present embodiment, it is possible to prevent erroneous operation of the buttons and the touch panel by spilling the laundry processing liquid on the operation panel 14 (see FIG. 1).

  (6) A larger amount of laundry treatment liquid is introduced into the automatic introduction unit of the laundry treatment liquid introduction device than in the manual introduction unit. Nevertheless, in the conventional washing machine, the automatic loading unit is provided behind the manual loading unit. Therefore, the conventional washing machine (especially the vertical washing machine) has a problem that the washing treatment liquid charging device is not convenient to use.

  On the other hand, as shown in FIG. 5, in the washing machine 1 according to the present embodiment, the second loading unit 32 (automatic loading unit) into which a relatively large amount of the washing treatment liquid is loaded has the first loading unit 31 (manual loading). It is provided in front of the input part). Therefore, the washing machine 1 according to the present embodiment can improve the usability of the laundry processing liquid charging device 30.

  (7) When the conventional washing machine has a drying function, for example, the drying unit is arranged at the upper rear part of the housing. In the conventional washing machine having this configuration, since the tank of the washing treatment liquid feeding device and the drying unit are relatively close to each other, the washing treatment liquid stored in the tank may gel due to heat from the drying unit. , There was a problem.

  On the other hand, as shown in FIG. 4, in the washing machine 1 according to the present embodiment, the drying unit 71 is arranged in the upper rear part of the housing 11, and the washing treatment liquid introduction device 30 is arranged in the upper front part of the housing 11. Has been done. That is, in the washing machine 1 according to the present embodiment, the laundry processing liquid charging device 30 is arranged at the farthest position from the drying unit 71 in the upper part of the housing 11. Therefore, the washing machine 1 according to the present embodiment can suppress the washing treatment liquid stored in the tank 42 from gelling due to the heat from the drying unit 71.

  (8) Generally, it is desired that the washing machine has a small width. However, in the conventional washing machine, since the washing treatment liquid charging device is mounted on the side of the water tub, it is necessary to reduce the size of the clothes feeding part (opening of the water tub). As a result, the conventional washing machine (especially, the vertical washing machine) has a problem that the ease of loading clothes is reduced.

  On the other hand, as shown in FIG. 5, in the washing machine 1 according to the present embodiment, the washing treatment liquid introduction device 30 is mounted at a location in front of the water tub 21. Therefore, it is not necessary to reduce the size of the clothing insertion part (the opening of the water tank 21). Therefore, the washing machine 1 according to the present embodiment can improve the ease of loading clothes.

  (9) In the conventional washing machine, the tank of the washing treatment liquid introduction device is arranged at the side of the water tank (laundry / dehydration tank) so as to extend in the front-rear direction, and the tank cannot be removed. It was structured. Therefore, the conventional washing machine has a problem that the tank and the like cannot be washed.

  On the other hand, as shown in FIGS. 7 to 9, in the washing machine 1 according to the present embodiment, the tank 42 of the washing treatment liquid introduction device 30 can be removed, so that the tank 42 and the like can be washed.

  (10) The conventional washing machine includes a lid that seals the automatic loading unit. The lid has a structure that opens to either left or right. Such a conventional washing machine has a problem that it is difficult to open the lid when the opening direction of the washing machine is opposite to that of the user's dominant hand.

  On the other hand, as shown in FIGS. 7 and 8, the washing machine 1 according to the present embodiment is configured such that the loading port lid 43a (first lid) can be opened and closed vertically from the front to the rear. Therefore, the washing machine 1 according to the present embodiment can open the insertion port lid 43a (first lid) without depending on the dominant hand. Accordingly, the washing machine 1 according to the present embodiment can easily add (replenish) the laundry processing liquid to the second input unit 32 (automatic input unit) without depending on the dominant hand.

  (11) In the conventional washing machine, when the user forgets to close the lid that seals the automatic feeding part and performs washing, the washing treatment liquid may leak from the tank of the washing treatment liquid feeding device. There was a problem.

  On the other hand, as shown in FIG. 12, the washing machine 1 according to the present embodiment is a case where the user performs washing in a state where the user forgets to close the inlet lid 43a (first lid). Also, by closing the tank storage lid 15 (second lid), the charging port lid 43a can be automatically closed. Therefore, even in such a case, the washing machine 1 according to the present embodiment can prevent the washing treatment liquid from leaking from the tank 42 of the washing treatment liquid injection device 30.

  (12) In the conventional washing machine, when the washing treatment liquid stored in the tank of the washing treatment liquid feeding device is pressurized with air and sent out to the water tank, the portion where water does not pass on the piping path through which the washing treatment liquid passes. Exists. The conventional washing machine has a problem that it is difficult to wash a portion where water does not pass.

  On the other hand, as shown in FIG. 6, in the washing machine 1 according to the present embodiment, the laundry processing liquid stored in the tank 42 of the laundry processing liquid feeding device 30 is sent to the transport path 53, and the transport path 53 is provided. Water passes through any of the above parts. Therefore, the washing machine 1 according to the present embodiment can reliably clean the transport path 53.

  As described above, according to the washing machine 1 of the present embodiment, it is possible to easily add the washing treatment liquid and improve the usability.

  The present invention is not limited to the above-mentioned embodiment, but includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Further, it is possible to replace a part of the configuration of the embodiment with another configuration, and it is also possible to add another configuration to the configuration of the embodiment. Further, it is possible to add / delete / replace other configurations with respect to a part of each configuration.

  For example, the tank 42 preferably has a claw-shaped engaging means or the like so as to firmly engage with the case 41.

  Further, for example, in the above-described embodiment, the case 41 is provided with the vibration damping member 45. However, the damping member 45 may be provided on either or both of the tank 42 and the case 41.

  Further, for example, the insertion port lid 43a (first lid) may be configured to slide from the front to the rear to open and close.

1 Washing machine (washing and drying machine)
11 Case 11a Opening 12 Top Cover 13 Outer Lid 14 Operation Panel 15 Tank Storage Lid (Second Lid)
16 Front Panel 17 Circulation Pump 20 Water Supply Unit (Water Supply Means)
21 Water tank (laundry and dehydration tank)
21a Copper Plate 21aa Through Hole 21b Rotor 21c Balance Ring (Fluid Balancer)
22 Outer Tank 22a Outer Tank Cover 22b Lid Member 22c Drop-in Section 22d Bottom Wall 22e Peripheral Wall 23 Drive Device 23a Motor 23b Clutch Mechanism 23c Rotating Shaft (Center of Water Tank)
24 Rotation Detection Device 25 Motor Current Detection Device 26a Temperature Sensor 26b Temperature Sensor 26c Temperature Sensor 27 Acceleration Sensor 28 Water Level Sensor 28a Pneumatic Chamber 30 Washing Liquid Injection Device 31 First Input Portion (Manual Input Portion)
32 (32a, 32b) Second charging section (automatic charging section)
35 Water quality sensor (conductivity detection means)
36A, 36B electrodes (pair of electrodes)
38 Resonance circuit 38a Coil 39 Oscillation circuit 39a Coil 41 Case 41a Nozzle 42 (42a, 42b) Tank 43 Top cover 43a Input port lid (first lid)
44 Handle 45 Damping member (suppressing means)
46 Transport pump (transportation means)
47a, 47b Check valve 48 Tank mesh 49 Discharge port 51 First water supply path 51a Water injection hose 52 Second water supply path 53 Conveyance path 54 Input path 54a Input hose 61 First cleaning path 61a Cleaning hose 62 Second cleaning path 63 Discharge path 63a, 63b, 63c Drain pipe 64 Switching valve (switching means)
65 Drain valve 66 Drain port 71 Drying unit (heater)
72 fan 73 air duct 73a, 81a bellows tube 74 blowing nozzle 81 drying duct 91 refill container 100 controller 110 microcomputer 111 operation pattern database 112 process controller 113 rotation speed calculator 114 clothing weight calculator 115 conductivity measurer 116 detergent Amount / washing time determination unit 117 Detergent state determination unit 118 Foaming determination unit 119 Laundry treatment liquid injection determination unit 121 Motor drive circuit 122 Clutch drive circuit 123 Heater switch 124 Fan drive circuit 125 Circulation pump drive circuit 126 Conveyor pump drive circuit

Claims (2)

A casing, an outer tub supported in the casing to store washing water, a washing and dehydrating tub rotatably supported in the outer tub to store laundry,
A first charging section used when charging one batch of powdered detergent or liquid detergent into the outer tub;
A second charging unit that is used to store the liquid detergent for a plurality of times and automatically load the liquid detergent for one time into the outer tub;
A detergent type determining means provided at the bottom of the outer tub,
When the automatic detergent setting is OFF, the powder detergent or the liquid detergent in the first feeding section is fed into the outer tub,
When the automatic detergent setting is ON, in the washing machine in which the liquid detergent in the second charging section is charged into the outer tub,
When the automatic detergent setting is OFF, the washing / dehydrating tub is rotated at a first rotation speed at a predetermined water level, the detergent type is determined by the detergent type determining means, and then water is supplied to obtain a high concentration. Washed,
When the automatic detergent setting is ON, the washing / dehydrating tub is rotated at a second rotation speed at a predetermined water level, the detergent type is determined by the detergent type determination unit, and then water is supplied to obtain a high concentration. To wash,
The washing machine, wherein the second rotation speed is lower than the first rotation speed. A casing, an outer tub supported in the casing to store washing water, a washing and dehydrating tub rotatably supported in the outer tub to store laundry,
A first charging section used when charging one batch of powdered detergent or liquid detergent into the outer tub;
A second charging unit that is used to store the liquid detergent for a plurality of times and automatically load the liquid detergent for one time into the outer tub;
A detergent type determining means provided at the bottom of the outer tub,
When the automatic detergent setting is OFF, the powder detergent or the liquid detergent in the first feeding section is fed into the outer tub,
When the automatic detergent setting is ON, in the washing machine in which the liquid detergent in the second charging section is charged into the outer tub,
When the automatic detergent setting is OFF, the washing / dehydrating tub is rotated at a first rotation speed at a predetermined water level, the detergent type is determined by the detergent type determining means, and then water is supplied to obtain a high concentration. Washed,
When the automatic detergent setting is ON, the washing / dehydrating tub is rotated at a second rotation speed at a predetermined water level, the detergent type is determined by the detergent type determination unit, and then water is supplied to obtain a high concentration. To wash,
The washing machine characterized in that the first rotation speed and the second rotation speed are 80 rpm or less.

Images