TWI672409B - washing machine - Google Patents

Abstract

[Problem] Provide a washing machine capable of efficiently dissolving dirt into a washing liquid and detecting the amount of dirt with good accuracy. [Solution] The system is provided with: a frame body (1); and an outer tank (2), which is used to store water inside; and a roller (3), which is rotatably supported in the outer tank (2); The device (M) is a rotary driving drum (3); and the water supply means (21) is for supplying water to the outer tank (2); and the lotion supply means (20) is for supplying the lotion into the outer tank (2) ; And washing liquid state determination means (140), which detects the state of the liquid in the outer tank (2); and operation control means (100), which are for the driving device (M), water supply means (16), and lotion supply means (20) and washing liquid state determination means (140) for control, and operation control means (100), which implement the first stirring project and the dirty amount detection project, and the second stirring project, the first stirring project, which are related to dirt It is implemented before the detection process. The second mixing process is implemented after the dirt detection process. The rotation speed of the drum during the first mixing process is higher than the rotation speed of the drum during the second mixing process.

Description

washing machine

[0001] The present invention relates to a washing machine for washing clothes and the like.

[0002] The amount of dirt attached to clothing changes with the living environment. Therefore, in a washing program that performs the same washing action, especially when there is a large amount of soiled laundry, there is a case where it is not cleaned. In Japanese Patent Application Laid-Open No. 2011-67312 (Patent Document 1), the amount of dirt in the washing liquid is estimated and the washing time is determined. [Prior Art Document] [Patent Document] [0003] [Patent Document 1] Japanese Patent Laid-Open No. 2011-67312

[Problems to be Solved by the Invention] 0004 [0004] In general, a drum-type washing machine has an outer tank that stores washing liquid and a drum that is rotatably supported in the outer tank and a drum that rotates the drum. Drive device. The rotation of the drum lifts the laundry accumulated below the drum, and causes gravity to become larger than the centrifugal force with respect to the laundry, so that the laundry falls from above the drum. Thereby, a mechanical force is applied to the clothes, and washing is performed (slap washing). [0005] The dirt adhering to the clothes is dissolved into the washing liquid contained in the clothes, and is pushed out of the clothes by the falling impact caused by the flapping laundry, and is accumulated with the foregoing. The washing liquid in the tank was replaced. By repeating this, the dirt attached to the clothes is moved to the washing liquid stored in the aforementioned outer tank, and the dirt is removed from the clothes. [0006] In order to estimate the amount of dirt in the washing liquid, it is necessary to perform a flapping washing and dissolve the dirt into the washing liquid, and there is a problem that it is necessary to ensure usefulness to perform this time. [0007] An object of the present invention is to provide a washing machine that can efficiently dissolve dirt into a washing liquid and detect the amount of dirt with good accuracy. [Means to Solve the Problem] [0008] In order to solve such a problem, for example, the washing machine of the present invention is provided with an outer tank to store water therein, and a drum rotatably supported to the outer tank. And a motor that drives the drum in rotation; and a water supply means that supplies water to the outer tank; and a lotion supply means that supplies lotion to the outer tank; and a washing liquid state determination means that detects The state of the liquid in the outer tank, the operation control means are implemented by the first agitation project and the dirty amount detection project and the second agitation project, and the first agitation project is implemented before the fouling detection project. The aforementioned second stirring project is implemented after the aforementioned dirt detection project. During the aforementioned first stirring project, the drum is rotated by a higher rotation number than the aforementioned second stirring project. [Effects of the Invention] [0009] According to the present invention, it is possible to provide a washing machine capable of efficiently dissolving dirt into a washing liquid and detecting the amount of dirt with good accuracy.

[0011] Hereinafter, With proper reference to the drawing, Regarding the embodiments for implementing the present invention (hereinafter, (Referred to as "embodiment"). [0012] As shown in FIG. 1, The drum-type washing machine S of this embodiment, As long as it is a drum-type washing machine provided with at least an outer tank 2 and a drum 3 and a motor M (refer to FIG. 3) for rotationally driving the drum 3, Can be applied, the following, An example will be described. In addition, As shown in Figure 1, In the drum type washing machine S, The direction in which the door 25 exists is the front side, Let's explain the directions of back and forth, up, down, and left and right. [0013] As shown in FIG. 1, Drum-type washing machine S, It is provided with a frame 1 which forms an outer contour by combining a steel plate and a resin molded product, And has a drying function. Drum-type washing machine S, The rotation axis of the slightly roller-shaped roller 3 is slightly inclined with respect to the door 9 disposed on the front face of the frame 1 And by rotating the drum 3 around the rotation axis, A device for washing laundry, such as laundry, which is put in from the door 9. Drum-type washing machine S, It has a frame 1, which will be described later. And outer tank 2, And roller 3, And lotion input unit 20 (refer to FIG. 2), And water supply unit 15 (water supply means) (refer to FIG. 4), And operation panel 6, And shock absorber 5 (refer to Figure 3), And operation switch 8a, 8b (refer to Figure 2), And display 22 (refer to Figure 2), And gate 25, And drive M10 (refer to Figure 3), And temperature sensor T1 (water temperature detection means), And conductivity sensor 4 (hardness detection means, Lotion type detection means, (Dirty concentration detection method), And control device 100 (operation control means) (refer to FIG. 3) and the like. [0014] The aforementioned frame 1, It is a casing that forms the external shape of the drum-type washing machine S and holds the constituent parts of the drum-type washing machine S as an inner package. Frame 1, It is equipped with Colored steel plate) The front panel (front panel) is arranged at the front. And side panels (side panels) 14A arranged on the left and right sides, 14B, And a back panel (back panel) that is formed in a slightly sloping shape when viewed from above and is arranged on the back surface by pressing a sheet metal, etc. And the base 17, which is arranged at the bottom side of the outer tank 3, And the top panel (top panel, Top panel) 18, And installed separately. Instead, it is formed into a slightly box shape. On the face above the frame 1, The lotion input unit 20 is provided for inputting lotions and the like, Display 22, Dry the filter 37 and so on. [0015] Left and right side panels 14A, 14B, It is connected to the front upper reinforcing plate 31, which is built in the housing 1, respectively. Front lower reinforcement plate 32, Upper reinforcement plate 35, The upper link reinforcement part 36 is combined. also, Back panel 16, It is connected to the upper reinforcement plate 35 via the upper connection reinforcement plate 36. Upper link reinforcement plate 36, Are molded by synthetic resin, And it is arrange | positioned so that it may extend in a front-back direction, and it may be located in the center part of a left-right direction. In addition, As a synthetic resin, Select a resin with high strength and excellent abrasion resistance. in particular, Department can choose POM (polyformaldehyde resin). [0016] At the slightly center of the front panel 11, The door 25 for blocking the entrance and exit of the laundry is blocked, It is openably and closably supported by a pivot (not shown). At gate 25, The door handle 23 is provided to release a locking mechanism (not shown) of the door 25. By pulling the door handle 23, The locking mechanism is released, Door 25 is open, By pushing the door 25 to the front panel 11, The door 25 was locked and closed. As shown in Figure 3, Inside the front panel 11, Department is equipped with snake belly tube 24, Outer tank 2, Drum 3, Motor M and so on. At the aforementioned upper panel 18, Is equipped with an operation panel 19, The lotion input unit 20 and the drying screen 37. [0017] At the aforementioned upper panel 18, The water supply pipe connection port 18f from the water tap is provided in an exposed state. 18g of water supply pipe connection for bathing residual water. Inside the upper panel 18, The quilt is provided with the aforementioned water supply unit 15, Water supply pipe P1 P2, Lotion delivery tube P3, Water supply pipe 32, Water supply solenoid valve 21, Bathing water supply pump 7 is related to water supply parts. also, Under the frame 1, System is equipped with shock absorbers 5, Cycle pump 54, Base 17 and so on. [0018] Operation panel 19, It is a long panel member arranged in the upper direction of the frame body 1, And equipped with a power switch 9, Operation switch 8a, 8b, Display 22 and so on. Operation panel 19, It is electrically connected with the control device 100 which is built in the upper part of the casing 1. [0019] At the left side of the operation panel 19, The system is provided with a lotion, bleach, A lotion cap or the like is used as a lotion cover 20a to close the mouth. Lotion cover 20a, It is openably and closably supported by a pivot shaft (not shown) composed of a spring and a shock absorber. At the lotion cover 20a, A locking mechanism (not shown) provided with a lotion cover 20a. When the lotion cover 20a is closed and pushed down, The locking mechanism is released, The lotion cover 20a is opened, With the lotion cover 20a opened, the lotion cover is pushed downward, The lotion cover 20a is locked and closed. [0020] At the rear side of the operation panel 19, A pull-out drying filter 37 is provided. In addition, Drying filter 37, It has a mesh filter (not shown), And the removal of silk debris and the like. Cleaning of the drying filter 37, The drying filter 37 is pulled out and the wire scraps and the like in the grid part are wiped off. And proceed. [0021] The lotion input unit 20, Is the powder lotion, Liquid lotion (or bleach), Where lotions such as softeners (softeners) are put, E.g, The system is disposed at the left front end portion of the upper surface of the housing 1. Lotion input department, With water supply unit 15, And a lotion box 26 housed in a water supply unit 15 and removable, And a powder lotion injection chamber 26a formed in a lotion box 26, The liquid detergent input chamber 26b and the softener input chamber 26c, And an outflow port 27 and a siphon tube 28 provided at the bottom of the lotion box 26, And water supply pipes P1 that supply water to the lotion input unit 20 P2, And the lotion supply pipe P3 and the like that supply the lotion in the lotion input section 20 and the lotion to the outer tank 2. [0022] A lotion box 26, The powder lotion injection chamber 26a, which is classified as a powder lotion, The liquid detergent input chamber 26b into which the liquid detergent (or bleach) is put, The softening agent input chamber 26c into which the softening agent is put. On the back side of the lotion box 26, Is provided with a water supply solenoid valve 21, Bathing water supply pump 7. The water level sensor 58 and the like are related to water supply parts. Water supply solenoid valve 21, By the water supply pipe P1, P2 is connected to the water supply unit 15. [0023] Here, Water supply solenoid valve 21, By a plurality of solenoid valves (for example, 4 solenoid valves), By opening and closing the first solenoid valve, water can be supplied to the powder detergent input chamber 26a and the liquid detergent input chamber 26b through the water supply pipe P1. The softener input chamber 26c is supplied with water by opening and closing the second solenoid valve through the water supply pipe P2, The third solenoid valve is opened and closed to directly supply water to the water supply port 29 of the outer tank 2 through a water supply pipe (not shown). The fourth solenoid valve is opened and closed to supply water to a water-cooled dehumidification mechanism (not shown) of the air supply duct 40 through a water supply pipe (not shown). [0024] the water supply unit 15, It is fixed to the upper panel 18 of the frame 1. Water supply unit 15, In order to prevent interference with the outer groove 2, And the bottom surface is cut obliquely, If viewed from the front, The right is shallower, The left system becomes deeper. also, On the left and rear of the water supply unit, The system is provided with a water outlet 15a. Therefore, The bottom surface of the water supply unit 15, It is formed in the shape of a pestle so as to minimize the position of the water outlet 15a. [0025] In the powder lotion injection chamber 26a, An outflow port 27 connected to the lotion delivery pipe P3 and the water supply port outer groove 2a is formed at the inner bottom. Water supplied from the water supply pipe P1 into the powdery detergent input chamber 26a, Flowing in a manner that creates a vortex that rotates in a clockwise direction, And dissolve the powder lotion, Then, it flows into the outflow port 27 and flows into the lotion delivery pipe P3. [0026] In the liquid lotion injection chamber 26b, A siphon tube 28 connected to the outflow port 27 and the lotion delivery tube P3 is provided at the inner bottom. And flow in a way that creates swirls, While diluting liquid lotions, It flows into the siphon tube 28 and flows into the lotion delivery tube P3. Water supplied from the water supply pipe P1 into the liquid detergent input chamber 26b, Flowing in a way that creates a vortex that rotates counterclockwise, And dissolve the liquid lotion, Then, it flows into the outflow port 27 and flows into the lotion delivery pipe P3. [0027] In the softener injection chamber 26c, A siphon tube 28 connected to the outflow port 27 and the lotion delivery pipe P3 is provided at the inner bottom. The water supplied from the water supply pipe P2 into the softener input chamber 26c, Flowing in a manner that creates a vortex that rotates in a clockwise direction, And dilute the softener, Then, it flows into the siphon tube 28 and flows into the lotion delivery tube P3 (refer to FIG. 2). [0028] ≫The structure of the drying filter and the drying pipeline≫ At the downstream side of the drying filter 37, A drying unit 38 generating warm air is connected. This drying unit 38, Equipped with a fan and heater (not shown), And make it up, And it is fixed to the upper reinforcement plate 35 provided in the housing 1. Blower, Is driven by a motor, Fans and vans driven by this motor, The fan case that houses this fan van, And constitute it. Heater, Built into the fan case, It heats the air sent from the fan van. Heater, It is constituted by a PTC (Positive Temperature Coefficient) heater or the like. [0029] a drying unit 38, It is connected to the air supply duct 40 via a rubber bellows tube 50 made of rubber. Supply air pipe 40, Is set at the inner side of the back of the frame 1, The concave-shaped pipe portion 41, which is formed integrally with the outer groove 2 by resin molding, And the air supply duct cover 43 which is installed so as to block a part of the duct portion 41, And constitute it. 管 部 41 ， The pipeline section 41, It is formed so as to extend slightly upward and downward, It is formed at a position shifted to the right from the center of the outer groove 2. [0030] Again, At the lower part of the air supply duct 40, A substantially rectangular suction port (not shown) is formed to communicate with the inside of the outer tank 2 (the side on which the drum 3 is arranged) and suck air during drying operation. [0031] In the pipeline portion 41, The system is provided with a well-known water-cooled dehumidification mechanism. E.g, During the drying stroke, The drying unit 38 is operated by rotating the drum 3 in the forward and reverse directions, To suck the air in the outer tank 2 into the air supply duct 40, When passing through the air supply duct 40, The water supply solenoid valve 21 supplies cooling water to a water-cooled dehumidification mechanism (not shown) through a water supply pipe (not shown), Instead, cool and dehumidify. after that, The air that has been dehumidified, Is heated by the heater of the drying unit 38, It is blown toward the laundry in the drum 3. In addition, As a drying method, The system is not limited to a combination of a heater and a water-cooled dehumidifier (not shown). A heat pump can also be used. [0032] a control device 100 (operation control means), In order to control the motor M and the water supply unit 15 so that the washing operation can be performed, In addition, the calculation of the conductivity based on the conductivity of the liquid in the outer tank 2 detected by the conductivity sensor 4 is also performed. Determination of the presence or absence of softeners in the liquid, Determining the shortening of dewatering projects, A device for determining the shortening of washing processes. Control device 100, Through microcomputers, Drive circuit, Operation switch 8a, 8b and the input circuit from the conductivity sensor 4 and various sensors, etc. And constitute it. Microcomputer, It receives the user's operation and the washing process, Various information signals in the drying process. Microcomputer, Through the drive circuit, And the motor M, Water supply solenoid valve 21, Drain valve 53, The supply fan 39 is connected, And for these openings and closings, Turn, Power on for control. also, In order to notify the user of information related to the drum type washing machine S, The display 22 and the buzzer are controlled. [0033] As shown in FIG. 3, Motor M, It is a device for rotating the drum 3, And it is set in the center of the outer side of the bottom surface of the outer tank 2. The rotation axis of the motor M, Tie through the outer groove 2, And combined with the drum 3. Motor M, The rotation detection device 70 includes a Hall element, a photo interrupter, and the like, which detects its rotation. And a motor current detecting device 72 that detects a current flowing in the motor M. [0034] a water supply unit 15 (water supply means), It is a device for supplying water to a water supply port 2a provided outside the outer tank 2 and supplying water to the inside of the outer tank 2. Water supply unit 15, It is provided at the back side of the upper panel 18. At the water supply unit 15, It is provided with a water supply pipe (not shown), Water pipe connection port 18f, Water supply solenoid valve 21, Bathing water supply pump 7. 18g of the aforementioned suction pipe connection port, The aforementioned water level sensor 58, And the aforementioned tube 57. [0035] a water supply pipe (not shown), It is used to transfer tap water to lotions, A tube for supplying water by a lotion input unit 20 such as a softener, It is connected to the water pipe connection port 18f. Water pipe connection 18f, It is a connection part in which one end is connected to the other end of a pipe (not shown) installed at a water tap of a tap water. Water supply solenoid valve 21, The water supply pipe P1 connected to the powder lotion input chamber 26a and the liquid lotion input chamber 26b of the lotion input unit 20 and the water supply pipe P2 connected to the softener input chamber 26c are performed by electromagnetic force Opening and closing control valve of the valve body of tap water. Is supplied to the powder lotion injection chamber 26a, Tap water in the liquid detergent input chamber 26b and the softener input chamber 26c, Department and lotion, The softener comes together through the lotion delivery tube P3, The water supply port 2a is filled with water into the outer tank 2. Bath water supply pump 7, It is a pump that injects water into the outer tank 2 to attract the remaining water of the bath tub and introduce it. 18g suction port, It is a connection part for connecting a pipe for supplying bath water, It is connected to the aforementioned bath water supply pump 7. [0036] the drum 3, Tied in the outer tank 2, Can be supported rotatably around a rotation axis, And an inner tank for washing, Moreover, it is a bottomed cylindrical (roller-shaped) washing tank (washing tank and drying tank) with the front end opened. At the front end face of the drum 3, The opening 3a is formed to allow the laundry to pass in and out, On the outside of the opening 3a in the radial direction, A fluid balancer (not shown) integrated with the drum 3 is provided. Drum 3, It is connected to the motor M at the center of the bottom surface through a rotation shaft (not shown), The motor M is rotated by the motor M. [0037] the drum 3, Is a bottomed cylindrical container, It is rotatably supported on the rotating shaft of the motor M. also, At the outer peripheral wall 3c of the drum 3, A plurality of through holes 3b are formed to allow water and ventilation to pass through. In addition, The central axis of rotation of the drum 3, It is horizontal or inclined so that the opening part 3a side becomes high. [0038] Outer trough 2, For washing and washing, A drum-type water tank that is filled with the used water and temporarily stored therein, It is supported in the frame 1 by shockproofing. Outer tank 2, It is made of a bottomed cylinder with an opening at the 2s side of the clothes inlet. And have water supply ports 2a, which will be described later, Peripheral wall 2c, Bottom wall 60, Back 61, Groove 62, Dimples 63, Rib 64, Conductivity sensor 4, Drain port 51 and so on. [0039] At the bottom surface of the rear part of the outer tank 2, The roller 3 is rotatably supported as a shaft in one end side, A rotating shaft of the motor M is supported at the other end side. On the inside of the outer tank 2, The aforementioned rotation shaft is fixed to the drum 3 at the rear bottom surface, By supporting the shaft at the axis of rotation, It is contained in a rotatable state. 该 外 槽 2, The front part is elastically supported on the inner wall of the front side of the frame body 1 by a rubber bellows tube 24, The lower part is elastically supported as a shock absorber by the shock absorber 5 fixed at the base 17, Furthermore, the upper surface portion is elastically suspended from the top surface of the frame body 1 by an auxiliary spring (not shown) installed at the upper connection reinforcing portion 36, In addition, it is prevented from falling down toward the front and rear directions of the outer groove 2. [0040] At the upper left side of the rear side of the outer tank 2, It is provided to supply water, lotion, bleach, Water supply port 2a (supply port) for liquid such as softener. On the left side of the upper part in the frame 1, Is provided with a water supply unit 15, Water outlet 2a and water outlet 30 of water supply unit 15, It is connected by a rubber bellows tube P4. [0041] At the lowermost part on the rear side of the outer tank 2, Is provided with a drainage opening 51, At drain 51, 系 is connected to a tube 51. Tube 51, It is connected to the drain pipe 55 through a circulation pump 54 connected to the drain valve 53. Instead, the washing water can be discharged from the drain pipe 55 to the outside of the machine. At the lowest part of the rear end face of the outer groove 2, Is provided with an air trap 56, And connected to the water level sensor 58 through a pipe 57, In order to detect the water level in the outer tank 2. [0042] As before, Outer tank 2, The system includes an outer peripheral wall 2 c and a bottom wall 60. Outer peripheral wall 2c and bottom wall 60, They are connected by curved surfaces. At the back surface 61 (inner surface) of the bottom wall 60 of the outer tank 2, The system is formed to contain water, lotion, Liquid such as bleach is guided from the water supply port 2a along the bottom wall 60 and the outer peripheral wall 2c to a water supply path 65 (a groove 62) at a portion below the outer tank 2. Water supply path 65, Is the water to be supplied to the upper part of the outer tank 2, The guide path is made so as to pass through the aforementioned curved surface and flow into the recessed portion 63 formed at the inner bottom portion 66 of the outer groove 2. [0043] At the inner bottom 66 of the outer groove 2 vertically below the outer peripheral wall 2c, The slightly concave pit portion 63 is provided so as to extend in the axial direction. The bottom surface 63a of the dent portion 63, Is formed into a rectangle when viewed in plan, The whole is inclined toward the drain opening 51. The rear side of the bottom surface 63a of the dent portion 63, When viewed from the front, Is equipped with a conductivity sensor 4 at the left rear side, The drain port 51 is provided on the right side. [0044] The dent portion 63, It is used to block the centrifugal force caused by the rotation of the drum 3 during dehydration, and flows out from the through hole 3b of the drum 3 to the inner surface of the outer peripheral wall 2c of the outer tank 2 and flows in the same direction as the rotation direction of the drum 3. The water is guided to the function of the drainage port 51. Depressions 63, A plate-shaped rib 64 protruding horizontally toward the left side is provided protruding from the entire right upper end portion when viewed from the front. Provided with a recessed portion 63 of the rib 64, The function of blocking the water flowing in the same direction as the rotation direction (counterclockwise rotation direction) of the drum 3 and guiding the water to the drainage port 51 as the recessed portion 63 is further reliably performed. The pit portion 63, Is at the center of the inner bottom 61 of the outer peripheral wall 2c inside the outer groove 2, Facing the front and back direction, when it is viewed from the front, it has a slightly concave groove shape. It is formed below the lower end portion 62 a of the groove 62. In the dent portion 63, Is equipped with a conductivity sensor 4, The rib 64 and the drain opening 51. The liquid dropped from the groove 62, After dropping to the conductivity sensor 4, Flow to the side of the drainage port 51, As a result, liquid does not remain on the conductivity sensor 4. and, Conductivity sensor 4, It is provided at a position where the water supplied from the water supply port 2a will initially touch. Therefore, When tap water is used as a water supply, The measurement can be performed correctly. When lotion or softener is supplied, It is also possible to detect the presence of lotions or softeners in water. also, Conductivity sensor 4, Since it is arranged inside the dent portion 63, therefore, It is the electrical conductivity that can detect the water in which the lotion is dissolved or the soil is dissolved out of the clothes. [0047] Since the outer tank 2 is arranged obliquely with the drum 3, therefore, The liquid system in the dent portion 63 flows out toward the drain port 51. [0048] Again, At the bottom surface 63a of the dent portion 63, The system is formed with a circulation outlet (not shown), By activating the circulation pump 54, It is possible to discharge the water sucked in from the drainage port 51 from a circulation discharge port (not shown). In addition, Circulation outlet (not shown), Is formed on the front side of the dent portion 63, Water spit out from a circulation spout (not shown), It flows from the front side to the dent portion 63 in the rear direction, And it goes to the drainage opening 51. also, Circulation outlet (not shown), Is arranged at a position covered by the rib 64, Water spit out from a circulation spout (not shown), It will not touch the drum 3 directly. [0049] Circulating pump 54, Is equipped with a housing 67, And filament filter 68, And pumps (not shown), And drain valve 53, And make it up, It is fixed at the base 17. Pump (not shown), Is driven by a motor, A runner driven by this motor, A cover for supporting the rotating shaft of the motor and connecting with the housing 67, And constitute it. [0050] Silk debris filter 68, Is detachably housed in the housing 67, And capture the silk debris and foreign matter mixed into the liquid in the shell, In addition, it is configured so that no filaments or foreign matter flows out to the pump (not shown). With this, To prevent the filaments or foreign objects from being wound around the moving wheel that is being rotated by the motor and causing the moving wheel and motor to be damaged. [0051] The case 67, Is connected to the outer tank 2 via a pipe 53, The liquid in the outer tank 2 is introduced into the casing 67. Pump (not shown), Is arranged slightly to the right of the housing 67, It is connected to the housing 67 through a through hole. At the slightly upper right of the case 67, It is provided with two discharge ports (not shown). By rotating the pump (not shown), To remove the liquid in the shell 67, Discharge to a circulation path for discharging from a circulation discharge port (not shown) of the recessed portion 63 and a discharge port (not shown) provided through the circulation pipe 69 from an opening portion provided in the outer tank 2 And spit out to the circulation path inside the drum 3. also, At the shell 67, Is equipped with a temperature sensor T1, And the temperature of the liquid in the case 67 can be detected. [0052] Conductivity sensor 4, It is an electrical conductivity sensor (hardness sensor, electrical conductivity sensor) that detects the electrical conductivity of the liquid used in washing. Dirty sensor, Lotion type determination sensor), And it is arrange | positioned at the bottom wall 60 position of the inner bottom part 66 in the outer tank 2. [0053] FIG. 9 It is a diagram showing the conductivity detection method. (a) is a perspective view of an electrode, (b) is a longitudinal sectional view of the central portion. As shown in Figure 9 (b), Conductivity sensor 4, To detect tap water before washing, Washing (laundry, Wash out, Sensor for conductivity of washing water during dehydration), And has a sensor base 71 made of synthetic resin, And a pair of electrodes 72A, 72B, And constitute it. also, Conductivity sensor 4, A non-conductive resin sensor base 71 and a conductive metal electrode 72A, 72B is integrally formed by insert molding. [0054] The sensor substrate 71, With support electrode 72A, 72B electrode support portion 71a, And a fixing portion 71b for fixing this electrode support portion 71a at the outer groove 2. Electrode support portion 71a, Is equipped with a cylindrical portion 71c1 And an upper surface portion 71c2 (upper surface) covering the upper portion of this cylindrical portion 71c1, A groove portion 71d extending obliquely in a band shape is formed at the upper surface portion 71c2. In addition, Groove part 71d, Tied at 71c1 of the cylindrical part, A flow channel 4a is formed in which a cutout is formed obliquely in a concave shape when viewed from the front, and is inclined. [0055] Again, In the side wall 4b of the groove portion 71d, At 4b, Electrode 72A, 72B is on the side wall 4b, The sides of 4b are exposed in a state of being on the same plane, And are configured to face each other. also, At the center of the bottom surface 71d4 of the groove portion 71d, The rib 71e is along the electrode 72A, 72B ground was formed. Fixed portion 71b, Are the members constituting the bottom surface of the sensor base 71, A mounting portion 71f having a slightly triangular plate shape is provided from the lower end portion of the electrode support portion 71a. Mounting section 71f, It is formed so as to protrude outward with respect to the electrode support portion 71a, At the corners of three of the support sections 71f, A screw insertion hole 71f1 is formed. At the mounting portion 71f, Tethered between the screw insertion hole 71f1 and the electrode support portion 71a, A ring-shaped portion 71 g formed so as to surround the electrode support portion 71 a is formed to project upward. 71g1 upper end portion 71g1 of the ring portion, Tied in the up and down direction (height direction), The electrode support portion 71a is formed to extend to a position slightly in the middle of the vertical direction (height direction). The electrode support portion 71a of the sensor base 71, To make the bottom side open, The electrodes 72A provided at the electrode support portion 71a, A part of 72B is located in the cylindrical portion 71c1 and projects downward. [0056] As shown in FIG. 9 (a), Electrode 72A, 72B, All have the same flat shape, A detection section 72a protruding from the groove section 71d is provided. And a resin fixing portion 72 fixed at the electrode supporting portion 71a, And a connector connecting portion 72c to which a connector (not shown) for detection is connected. So so By putting the electrodes 72A, 72B is set in a flat shape, Compared with rod-shaped electrodes, it can ensure a wider electrode area. And it becomes possible to detect stable conductivity. [0057] the detecting section 72a, The system is formed into a slightly rectangular shape, In order to make the surface area larger than the resin fixing portion 72b and the connector connecting portion 72c, And was formed. also, Detecting section 72a, The length L is formed to be shorter than the length Lm of the groove portion 71d. also, The upper edge portion 72a1 of the detection portion 72a, The system is formed into an arc shape. So so By forming the upper end edge portion 72a1 into an arc shape, By not having corners, it is possible to prevent the garbage from being caught, such as silk chips. [0058] the resin fixing portion 72b, The first fixing portion 72b1 having the same width as the detection portion 72a is provided. The second fixed portion 72b2 is narrower in width than the detection portion 72a. First fixing portion 72b1, It is provided with a through-hole 72b3 having a slightly T shape. The second fixing portion 72b2, The tapered portion 72b4 is provided with a tapered shape at both end edges from the first fixing portion 72b1 to the connector connecting portion 72c. [0059] As shown in FIG. 9 (b), On the back side of the electrode support portion 72A (the surface opposite to the surface where the groove portion 71d is formed), Tied to the side wall 4b of the groove portion 71d, At the position corresponding to 4b, A ridge portion 71h protruding downward is formed. At this protrusion 71h, The through hole 71b3 is located at the position. With this, By connecting the resin at the time of insert molding through the through hole 72b3, Electrode 72A, 72B is firmly supported with respect to the sensor base 71. also, By making the through hole 72b3 as in the embodiment, a large area is ensured, The electrode 72A (72B) can be supported more firmly with respect to the sensor substrate 71. [0060] Conductivity sensor 4, The system is arranged on the left side of the pit. at this time, The groove portion 71d of the conductivity sensor 4, In such a manner as to be a slightly continuous surface along the outer peripheral wall 2c of the outer groove 2, While being constituted. With this, E.g, In the dehydration process during washing operation, A part of the washing water discharged from the through hole 3b of the drum 3 to the outer tank 2 and the liquid flowing down from the water supply path 65, It is easy to pass through the groove portion 71d (the flow path 4a of the conductivity sensor 4). also, The left and right side walls 4b of the groove portion 71d, 4b, They are provided with recessed portions (not shown) which are slightly recessed, Electrode 72A, The 72B series are arranged so as to be embedded in the depressions. therefore, Electrode 72A, 72B, Tied to the side wall 4b, At 4b, Only the surface is exposed, And on the side walls 4b, Places at 4b are set in a state of almost the same plane, Therefore, there is no possibility of catching silk chips. [0061] Outer peripheral wall 2c of the outer groove 2, The bottom surface 71d4 of the groove portion 71d of the conductivity sensor 4, It is tilted significantly with respect to the bottom face of the depression. The inclination angle of this bottom surface 71d4, For example, it is set to 6 degrees. By setting the bottom surface 71d4 of the groove portion 71d of the conductivity sensor 4 to such an inclination angle, It can stagnate the water on the conductivity sensor 4 and cause the electrodes 72A, 72B is prevented from being corroded. [0062] the control device 100, It is constructed with the microcomputer 110 as the center. Microcomputer 110, Department has operation database 111, And engineering control department 112, And rotation speed calculator 113, And laundry weight calculation unit 114, And conductivity measurement section 115, And water temperature determination unit 116, And hardness determination unit 117, And lotion type determination unit 118, And dirt concentration determination unit 119, And water temperature, Hardness influence calculation section 120, And lotion types, Dirt concentration effect calculation unit 121, And the laundry time decision section 122. [0063] Operation switch 12, 13, To allow the user to enter a running stroke, The input signal is output to the microcomputer 110. Water level sensor 58, It is capable of detecting the water level of the water stored inside the outer tank 2, And it becomes to output the detected signal to the microcomputer 110. Temperature sensor T1, The system is provided below the circulation pump 54 (for example, Housing 67), The temperature of the water circulating inside the outer tank 2 and the circulation pump 54 can be detected. also, The temperature of the water continuously drained from the outer tank 2 can also be detected. Temperature sensor T1, The system can also be placed outside the circulation pump 54 (for example, Lower part of the outer tank 2). Temperature sensor T2, Is arranged at the suction side of the air-supply fan 39, And it becomes possible to detect the temperature of the air sucked in from the outer tank 2 to the air blower 39. Temperature sensor T3, It is installed on the exhaust side of the blower fan 39 further downstream than the heater (not shown). And it becomes possible to detect the temperature of the air blown from the ventilation fan 39 into the inside of the drum 3. In addition, Based on the signals detected by the temperature sensors T1 to T3, The system is output to the microcomputer 110. Acceleration sensor 71, Is installed in the outer tank 2 And become able to detect the vibration of the outer tank 2 (roller 3). With the signal detected by the acceleration sensor, The system is output to the microcomputer 110. [0064] a rotation detection device 70, For example, it consists of a resolver, And it becomes possible to detect the rotation of the motor M, Detected signals, The system is output to the microcomputer 110. Motor current detection device 72, Is to be able to detect the current value of the motor M, Detected signals, The system is output to the microcomputer 110. Conductivity sensor 4, It is able to detect the electrical conductivity of water stored inside the outer tank 2, Detected signal, The system is output to the microcomputer 110. [0065] a microcomputer 110, It is equipped with the operation mode database 111 and the operation switch 12, 13 The entered operation stroke corresponds to the operation mode and starts the washing and / or drying function. Engineering Control Department 112, Based on the operation mode called from the operation mode database 111, Washing works, Dewatering project, The function of operation control of each process of the drying process. [0066] In each project, Engineering Control Department 112, Is equipped with a display 22, Water supply unit 15, Water supply solenoid valve 21, The drain valve 53 functions as a control. also, Engineering Control Department 112, It is provided with driving control of the motor M via the motor driving circuit 130, By controlling the ON / OFF of the heater switch 131 and controlling the energization of a heater (not shown), Controls the blower fan 39 via the fan drive circuit 132, The function of controlling the driving of the cyclic pump 54 via the cyclic pump driving circuit 133. [0067] Here, Cycle pump 54, It is possible to switch between the lotion dissolution action and the circulation action. The lotion dissolves, The water sucked from the drainage port 51 is discharged from the circulation discharge port (not shown) of the recessed portion 63, This loop action, The water sucked in from the drain port 51 is discharged into the drum 3 from a discharge port (not shown) provided at the opening of the outer tank 2. In addition, The structure of the circulating pump 54 which can perform such action switching, As long as it is constituted by a circulating pump and a switching valve, E.g, It is also possible to adopt a configuration capable of switching the discharge direction by switching the rotation direction of the circulating pump. The rotation speed calculation unit 113, It has a function of calculating the rotation speed of the motor M based on a detection value from the rotation detection device 70 that detects the rotation of the motor M. [0069] the laundry weight calculation unit 114, It has a function of calculating the weight of the laundry in the drum 3 based on the rotation speed calculated by the rotation speed calculation unit 113 and the detection value of the motor current detection device 72. Due to the increased weight of the laundry, The load for rotating the drum 3 becomes larger, And it becomes necessary to have more motor current flowing in the motor M, therefore, Based on the motor current and rotation speed of the motor M, Calculate the weight of the laundry. [0070] The electrical conductivity measurement section 115, It has a function of measuring the conductivity of tap water or washing water supplied to the outer tank 2 using the detection value from the conductivity sensor 4. The amount of lotion, Washing time determination section 116, It is a person who has a function for determining the amount of washing and the washing time of clothes based on the conductivity measured by the conductivity measuring unit 115, etc., The details are described later. [0072] a water temperature measuring unit 117, It is a function of determining the temperature of the tap water or the washing liquid supplied to the outer tank 2 based on the temperature measured by the temperature sensor T1. [0073] The hardness determination section 118, It is a person who has a function to determine the hardness of the tap water to be supplied based on the conductivity measured by the conductivity measurement unit 115 and the like, The details are described later. A lotion type determination unit 119, It is a person who has a function to determine the type of lotion to be injected based on the electrical conductivity measured by the electrical conductivity measurement unit 115 and the like, The details are described later. [0075] The dirt concentration determination unit 120, This function is provided to determine the concentration of dirt dissolved in the washing water based on the weight of the laundry determined by the laundry weight calculation unit 114 and the conductivity of the washing water determined by the conductivity measurement unit 115. The details are described later. Water temperature, The hardness influence calculation unit 121, The water temperature is determined based on the water temperature determined by the water temperature measurement unit 116 and the hardness determined by the hardness determination unit 117. The function of the amount of change in the cleaning power that is affected by the hardness, The details are described later. Lotion, Dirty influence calculation section 122, The type of lotion received is determined based on the type of lotion determined by the lotion type determination unit 118 and the stain concentration determined by the stain concentration determination unit 119. The function of the amount of change in the cleaning power that is affected by the effect of the dirt concentration, The details are described later. [0078] the washing action resetting unit 123, Based on water temperature, Hardness influence calculation section 120, lotion, Those who determine the washing time and drum rotation time by the amount of change in the washing force determined by the dirt influence calculation unit 121, The details are described later. [0079] Next, Using Figures 11 to 13, The operation process of the drum-type washing machine S according to the embodiment of the present invention will be described. Figure 11, It is a process drawing for explaining the washing process (washing-washing-dewatering) in the drum-type washing machine S according to the embodiment of the present invention. [0080] In step S1, Engineering Control Department 112, It accepts the input of stroke selection (stroke selection) for the operation process of the drum-type washing machine S. herein, user, Open the door 25, And put the selected laundry inside the drum 3, And the door 25 is closed. after that, user, By operating the switch 12, 13 proceeding, Instead, select the stroke of the operation project and enter it. By operating the switch 8a, 8b is operated, The stroke of the selected operation process is input to the process control unit 112. Engineering Control Department 112, Based on the stroke of the input operation process, And read the corresponding operation form from the operation form database 111, And it progresses to step S2. In addition, In the following description, It is explained as a person who has selected a washing course (washing-washing twice-dehydration). [0081] In step S2, Engineering Control Department 112, It is a process (clothing amount detection) for detecting the weight (clothing amount) of the laundry put into the drum 3. in particular, Engineering Control Department 112, The driving motor M rotates the drum 3, The laundry weight calculation unit 114 also calculates the weight (cloth amount) of the laundry before the water injection. [0082] In step S3, Engineering Control Department 112, The calculation of the amount of washing, Project of running time (calculation of washing time). E.g, Lotion, Washing time determination section 116, Is based on the amount of cloth detected in step S2, Electrical conductivity (hardness) of water, The temperature of the water, And through map retrieval, To determine the amount of washing and the running time. after that, Engineering Control Department 112, The amount of lotion determined, The operating time is displayed on the display 22. In addition, Electrical conductivity (hardness) of water, The temperature of the water, The electrical conductivity (hardness) and water temperature of the water during the previous operation are stored in the memory section (not shown) of the microcomputer 110 in advance. And use it for this. [0083] In step S4, Engineering Control Department 112, Department of lotion input waiting project (lotion input waiting project). E.g, Engineering Control Department 112, Waiting for a certain time, And it progresses to step S5. also, Engineering Control Department 112, It can also be a means (not shown) for detecting the opening and closing of the lotion input section 7, When the lotion input section 20 is closed after being turned on, Considered to have been given lotion, And it progresses to the structure in step S5. [0084] In step S5, Engineering Control Department 112, Department of water supply 1 (hardness measurement) project. E.g, The water supply solenoid valve 21 is opened, Water is supplied directly to the water supply port 29 of the outer tank 2 without going through the lotion tray 26. If it reaches a certain level, The water supply solenoid valve 21 is closed. [0085] the conductivity measurement section 115, Make the conductivity sensor 4, The temperature sensor T1 operates, The water temperature and electrical conductivity of the tap water were measured to calculate the hardness of the water. The water temperature and water hardness measured here, Is memorized in the wash dose, In the washing time determination section 116, And use the next lotion, The laundry time is being decided. [0086] In step S6, Engineering Control Department 112, Department of water supply 2 (detergent supply) project. E.g, The water supply solenoid valve 21 is opened, The lotion and water are supplied along the outer tank 2 via the lotion tray 26. If it reaches a certain level, The water supply solenoid valve 21 is closed. at this time, If the water level is set to a height at which no water surface appears in the drum 3, It can suppress the dissolution of dirt from clothing, And ideal. [0087] In step S7, Engineering Control Department 112, The system performs lotion dissolution 1 process (lotion dissolution operation). in particular, Engineering Control Department 112, It controls the circulating pump 54. And the water and lotion sucked from the drainage port 51, It is ejected from a circulating ejection port (not shown) of the recessed portion 63. Water and lotion discharged from the circulation discharge port (not shown), Flowing in the pits 63, And head towards the drain 51, Instead it becomes a loop. With this, Water and lotion are stirred, The lotion is dissolved in water. If a certain time has elapsed (for example, 10 seconds), The engineering control unit 112 then stops the circulating pump 54. [0088] In step S8, Lotion type determination unit 119, The system performs lotion type determination (lotion type determination). In addition, For the type of lotion, This is described using FIG. 12. [0089] In step S200, Conductivity measurement section 115, The water temperature t and the conductivity EC of the washing liquid having a high lotion concentration generated by the lotion dissolving action (S7) were measured. In addition, When measuring conductivity EC, More ideally, The water supply to the outer tank 2 caused by the water supply solenoid valve 21, The circulation caused by circulation pump 54, The rotation of the drum 3 by the motor M is stopped. [0090] In step S201, Lotion type determination unit 119, It is determined whether the electrical conductivity EC measured in step S200 is smaller than the first threshold electrical conductivity EC1. In addition, First threshold EC1, It is set based on the temperature and electrical conductivity (hardness) of the water before the lotion is detected detected in step S5 (see FIG. 11). When the conductivity EC is smaller than the first threshold EC1 (S201 ・ Yes), The processing of the lotion type determination unit 119, The system proceeds to step S203. on the other hand, When the conductivity EC is not smaller than the first threshold EC1 (S201 ・ No), The processing of the lotion type determination unit 119, The system proceeds to step S202. [0091] In step S202, Lotion type determination unit 119, It is determined whether the electrical conductivity EC measured in step S200 is smaller than the second threshold electrical conductivity EC2. In addition, The second threshold EC2, It is set based on the temperature and electrical conductivity (hardness) of the water before the lotion is detected detected in step S5 (see FIG. 11). When the conductivity EC is smaller than the second threshold EC2 (S202 ・ Yes), The processing of the lotion type determination unit 119, The system proceeds to step S204. on the other hand, When the conductivity EC is not smaller than the second threshold EC2 (S202 ・ No), The processing of the lotion type determination unit 119, The system proceeds to step S205. [0092] In step S203, Lotion type determination unit 119, It is judged as a liquid lotion (concentrated), In accordance with this, the characteristics of the conductivity sensor 4 are switched. The processing of the lotion type determination unit 119, The system proceeds to step S207. [0093] In step S204, Lotion type determination unit 119, It was judged as a liquid lotion, In accordance with this, the characteristics of the conductivity sensor 4 are switched. The processing of the lotion type determination unit 119, The system proceeds to step S208. [0094] In step S205, Lotion type determination unit 119, It was judged as a powder lotion, In accordance with this, the characteristics of the conductivity sensor 4 are switched. The processing of the lotion type determination unit 119, The system proceeds to step S209. [0095] In steps S203 to S205, Is based on the lotion type determined by the lotion type determination unit 119, The characteristics of the conductivity sensor 4 are switched. E.g, By the capacitor for the constituent parts of the oscillating circuit 80 which is the conductivity sensor 4, And switch the connection to a capacitor with a different electrostatic capacitance, The frequency of the oscillating circuit 80 is changed. therefore, The range of the conductivity that can be read by the conductivity sensor 4 also changes. Because powder lotions tend to have high electrical conductivity, therefore, By increasing the electrostatic capacity of the capacitor, High frequency in the region where the resistance is low, Detection is easy. Because liquid lotions (concentrated) tend to have low conductivity, therefore, By reducing the electrostatic capacitance of the capacitor, High frequency in the region where the resistance is high, Detection is easy. Because liquid lotions tend to be located between powder lotions and liquid lotions (concentrated), therefore, By setting the electrostatic capacitance of the capacitor in the middle of the aforementioned capacitance, Detection is easy. Therefore, E.g, If the conductivity sensor 4 is maintained at a characteristic for detecting the conductivity of the powder lotion, When using other types of lotions with different conductivity, There are situations where contamination detection becomes difficult. By switching the characteristics of the conductivity sensor 4, The most suitable measurement results can be obtained according to the type of lotion. It becomes unnecessary to provide a plurality of conductivity sensors 4. [0096] In step S206, Lotion type determination unit 119, It is determined whether the water temperature t measured in step S200 is higher than a specific threshold temperature t _c And bigger. When the water temperature t is the threshold temperature t _c In the larger case (S206, Yes), the processing of the lotion type determination unit 119 proceeds to step S209. On the other hand, when the water temperature t is not a threshold temperature t _c If it is larger (S206 · No), the processing of the lotion type determination unit 119 proceeds to step S210. [0097] In steps S207 to S210, the lotion type determination unit 119 determines the additional lotion dissolution time. [0098] In steps S207 to S208, the lotion type determination unit 119 ends the lotion dissolution 2 process of step S9 without performing an additional lotion dissolution action (no additional dissolution action), and proceeds to step S10 soiling judgment reference value measurement process (refer to FIG. 11). [0099] In step S209, the lotion type determination unit 119 performs an additional lotion dissolution action (additional dissolution action (T1)) for a specific time T1 (for example, 15 seconds), and ends the lotion dissolution of step S9. 2 processes, the process proceeds to the soiling judgment reference value measurement process of step S10 (refer to FIG. 11). [0100] In step S210, the lotion type determination unit 119 performs an additional lotion dissolution operation (additional dissolution operation (T2)) for a specific time T2 (for example, 45 seconds), and ends the lotion dissolution of step S9. 2 processes, the process proceeds to the soiling judgment reference value measurement process of step S10 (refer to FIG. 11). The specific time T2 is set to be longer than the specific time T1. [0101] In step S9, the process control unit 112 executes the lotion dissolution 2 process. Specifically, the engineering control unit 112 controls the circulation pump 54 and discharges water and lotion sucked in from the drainage port 51 through a circulation discharge port (not shown) of the recessed portion 63. The water and lotion discharged from the circulation discharge port (not shown) flow through the recessed portion 63 and advance toward the drain port 51 to be circulated. As a result, the water and lotion are stirred, and the lotion is dissolved in water. If the additional dissolution time determined in steps S207 to S210 has elapsed, the process control unit 112 stops the circulation pump 54 and ends the lotion dissolution 2 process, and then proceeds to step S11. [0102] In step S10, the dirt concentration determination unit 120 calculates a reference value for determining the dirt concentration according to the type of lotion determined in steps S203, S204, and S205 ( Dirty judgment reference value measurement). This calculation is based on the electrical conductivity measured in step S200 before the dirt is dissolved out, and the water supply amount is determined based on the table corresponding to the laundry weight calculated by the laundry weight calculation unit 114, and the washing is taken To what extent the agent system was diluted. With this, the conductivity of the uncontaminated washing liquid required for the determination of the stain concentration is used as a reference, and the accuracy of the stain concentration determination unit 120 can be improved. [0103] The liquid lotion in a concentrated form, which can be used for only one washing operation, has a smaller electrical conductivity than a liquid washing agent that has two washing operations, so it can The determination result of the stain concentration determination unit 120 changes the number of washing cycles. [0104] In step S11, the engineering control unit 112 executes a rotary water supply project. Specifically, the water supply solenoid valve 21 is opened to raise the water level of the washing liquid in the outer tank 2 and the motor M is controlled to cause the drum 3 to rotate forward and backward at a specific rotation speed (for example, 40 rpm). Rotate the direction to mix clothes. In addition, the circulation pump 54 is controlled so that the specific rotation speed (for example, 2600 rpm) of the circulating pump 54 is controlled, and the washing liquid having a high concentration of the lotion sucked from the drainage port 51 is provided from the outer tank 2 Nozzles (not shown) at the openings are discharged into the drum 3 and are thereby allowed to penetrate into the clothes inside the drum 3. [0105] After that, if the water level of the washing liquid in the outer tank 2 rises to a specific water level, the water supply is stopped (for example, the water supply solenoid valve 21 is closed). If a specific time has passed since the rotary water supply project was started, the rotary water supply project is ended, and the process proceeds to step S12. [0106] In step S12, the process control unit 112 executes a push-washing process (first stirring process). In addition, the so-called push washing process is a process of immersing clothes in a washing liquid with a high concentration of lotion produced by the lotion dissolution process. By immersing the laundry in a washing liquid with a high concentration of lotion, and then by using the centrifugal dehydration effect to push out the dirt attached to the laundry from the laundry together with the washing liquid, the washing force is improved. Specifically, the engineering control unit 112 controls the circulation pump 54 at a specific rotation speed (for example, 3200 rpm and a circulation flow rate of 48 L / min), and the washing liquid sucked from the drainage port 51 is It is discharged from the nozzle (not shown) provided in the opening part of the outer tank 2 into the inside of the drum 3. In addition, by controlling the motor M and rotating the drum 3 at a specific rotation speed (for example, 100 rpm), the centrifugal force with respect to the clothes is overcome by gravity, and the clothes inside the drum 3 are attached to the clothes. The washing liquid contained in the clothes on the inner peripheral wall surface of the drum 3 is pushed out to the outer tank 2 through the through holes 3b of the drum 3 along with the dirt attached to the clothes. That is, in the push laundry process, the washing liquid for the laundry is impregnated and dehydrated continuously, and the replacement of the washing liquid contained in the laundry is promoted. In the push laundry of this embodiment, the drum 3 is rotated in the forward direction, but it may be rotated in the reverse direction or in both the forward and reverse directions. If a specific time (for example, 3 minutes) has elapsed, the process control unit 112 ends the push washing process and proceeds to step S13. [0107] In step S13, the engineering control unit 112 executes a water replenishment project. Specifically, the water supply solenoid valve 21 is opened, and water is supplied to the outer tank 2. If the water is supplied to a specific water level all the time, the water supply solenoid valve 21 is closed to stop the water supply, the water replenishment project is ended, and the process proceeds to step S14. [0108] In step S14, the process control unit 112 executes the tap washing process 1. The so-called slap laundry project is to lift the laundry accumulated in the lower part of the drum 3 by the rotation of the drum 3 and cause the laundry to be lifted from the drum 3 due to the gravity becoming larger than the centrifugal force relative to the laundry The process of giving mechanical force to clothes by falling down from the inside. [0109] Specifically, the engineering control unit 112 controls the circulation pump 54 to have a specific rotation speed (for example, 3200 rpm, and a circulation flow rate of 48 L / min), and sucks in the water from the drainage port 51. The washing liquid is discharged into the drum 3 from a nozzle (not shown) provided at the opening of the outer tank 2. In addition, the engineering control unit 112 controls the motor M and rotates the drum 3 in a forward and reverse direction at a specific rotation speed (for example, 40 rpm), and pats laundry inside the drum 3. If a specific time has elapsed (for example, 5 minutes), the process control unit 112 ends the tap washing process 1 and proceeds to step S15. [0110] In step S15, the dirt concentration determination unit 120 determines the dirt concentration of the clothes (dirty density determination). Specifically, the electrical conductivity measurement unit 115 measures the electrical conductivity of the washing liquid by the electrical conductivity sensor 4. In addition, when measuring the electrical conductivity EC, it is ideal to use the water supply to the outer tank 2 caused by the water supply solenoid valve 21, the circulation caused by the circulation pump 54 and the drum 3 caused by the motor M. The rotation stops. [0111] The washing liquid in step S15 is caused by dissolving the dirt in the washing liquid due to steps S12 and S14. That is, the reference value calculated in step S10 and the change amount (contamination judgment value) of the electrical conductivity of the washing liquid measured in step S15 are values resulting from the change caused by the contamination, and The degree of soiling of the clothes can be detected. In addition, depending on the different dirt components contained in the clothes, the amount of dirt change may change in a positive direction and a change in a negative direction, so the absolute value can also be used to judge soiling. The amount of change in pollution. [0112] When the soiling degree of the laundry is uniform, the larger the amount of laundry, the larger the soiling judgment value becomes. The dirt concentration determination unit 120 calculates the dirt concentration experimentally based on a relational expression based on the dirt determination value and the laundry weight calculated by the laundry weight calculation unit 114. If the dirt concentration is calculated, the process control unit 112 ends the dirt concentration determination process and proceeds to step S16. [0113] In step S16, the washing action resetting unit 123 executes a washing action resetting process (reset washing action resetting). The washing action reset is based on the influence of "information determined during operation, such as the amount of dirt (dirty concentration), water quality (water temperature, hardness), type of lotion, etc." on the washing performance. The amount of change in the net force is used for determination, and the washing time and the rotation time of the drum are determined according to the amount of change in the washing force. The cleaning power according to the embodiment of the present invention uses a cleaning ratio. That is, the so-called washing ratio is the ratio between the washing degree of the washing machine used for the test and the washing degree of the standard washing machine, and it is in the Japanese industrial standard "Method for Measuring the Performance of Household Electric Washing Machines (JISC9811) ". On the other hand, the higher the cleaning ratio, the higher the cleaning performance. In this embodiment, although the washing ratio is used as an index of the washing power, the system is not limited to this. For example, the sensor may be provided with a sensor or the like for measuring the hue of the clothes, and the amount of hue change during the laundry operation may be used. [0114] For the degree of influence of the cleaning power, the amount of change in the cleaning ratio is calculated based on two pieces of information, and finally the amount of change in the cleaning ratio is obtained based on all the information. For example, the water temperature and hardness effect calculation unit 121 substitutes the water temperature and hardness measured in step S5 into a relational expression (the relational expression between the water quality and the washing ratio) experimentally obtained, and Find out the washing ratio. In addition, the washing ratio obtained by substituting the condition that the dirt is sufficiently washed away (for example, water temperature of 25 ° C. and hardness of 30 ppm) into the relationship between the water quality and the washing ratio is used as a reference, and its relative value It is the amount of change in the washing ratio after being affected by water temperature and hardness. [0115] The lotion and soiling effect calculation unit 122 substitutes the soiling concentration calculated in step S15 to experimentally obtain a relational expression (the relationship between the soiling concentration and the cleaning ratio). To find the washing ratio. Here, the relationship between the stain concentration and the washing ratio is different in each of the various lotion types. The lotion and soiling effect calculation unit 122 selects the relational expression between the soiling concentration and the cleaning ratio in accordance with the lotion type determined in step S8. In addition, the washing ratio obtained by substituting the condition that the dirt is sufficiently washed away (for example, 1 times the dirt concentration) into the relationship between the dirt concentration and the washing ratio is used as a reference, and its relative value It is the amount of change in the washing ratio after being affected by the type of lotion and the concentration of dirt. [0116] The amount of change in the washing ratio caused by all the information is the amount of change in the washing ratio obtained by the water temperature and hardness influence calculation unit 121 and the lotion and dirt influence calculation unit 122. Total (amount of change in detergency). [0117] The washing action resetting unit 123 substitutes the amount of change in the washing power into a relational expression (the relational expression between the washing time and the washing ratio) experimentally taken out, and determines the additional washing time. (Tw). When the calculated additional laundry time (Tw) exceeds a specific set time, the additional laundry time (Tw) is replaced with a specific set time. This makes it possible to suppress black spots of clothes caused by long-term washing liquid immersion. In order to supplement the washing force caused by the shortened additional washing time (Tw), the drum rotation time is extended to increase the crop rate. The washing force is increased by increasing the mechanical force caused by the flapping laundry. [0118] In step S17, the process control unit 112 executes the tap washing process 2 (second stirring process). Specifically, the engineering control unit 112 controls the circulation pump 54 at a specific rotation speed (for example, 3200 rpm and a circulation flow rate of 48 L / min), and the washing liquid sucked from the drainage port 51 is It is discharged from the nozzle (not shown) provided in the opening part of the outer tank 2 into the inside of the drum 3. In addition, the engineering control unit 112 controls the motor M and rotates the drum 3 in a forward and reverse direction at a specific rotation speed (for example, 40 rpm), and pats laundry inside the drum 3. At this time, the drum is rotated in one direction at the time determined in step S16. If the additional washing time (Tw) determined in step S16 has elapsed, the process control unit 112 ends the tap washing process 2 and proceeds to step S18. [0119] In step S18, the engineering control unit 112 executes drainage engineering. The motor M and the circulation pump 54 are stopped, and the drain valve 53 is opened to drain the washing water in the outer tub 2. The water level sensor 58 continuously monitors the water level of the washing water in the external and secondary tanks 2 during drainage. If the detection value of the water level sensor 58 is lower than a specific water level, the drainage project is ended, and the process proceeds to step S19. [0120] In step S19, the engineering control unit 112 executes the dehydration 1 project. With the open state of the drain valve 53 maintained, the drum 3 is rotated in a reverse direction at a high speed (for example, 1250 rpm), and the washing water contained in the laundry is dehydrated. If the specified time has elapsed, the dehydration 1 process is ended, and the process proceeds to step S20. [0121] In step S20, the process control unit 112 executes a rotary spray process. While rotating the drum 3 in the reverse direction at a medium speed (for example, 105 rpm), the drain valve 53 is closed and the water supply solenoid valve 21 is controlled to distribute water to the clothes. The control time of the water supply solenoid valve 21 at this time is determined based on the amount of cloth detected in step S2. When a specific time has elapsed, the water supply is stopped (for example, the water supply solenoid valve 21 is closed). The circulation pump 54 is controlled so that the circulating pump 54 has a specific speed (for example, 3200 rpm), and the washing liquid sucked from the drain port 51 is discharged from a nozzle (not shown) provided at the opening of the outer tank 2. (Illustrated) and spit out into the drum 3. When a specific time has elapsed, the circulation pump 54 is stopped, the drain valve 53 is opened, and the washing water in the outer tank 2 is drained. [0122] In step S21, the project control unit 112 executes the dehydration 2 project. With the open state of the drain valve 53 maintained, the drum 3 is rotated in a reverse direction at a high speed (for example, 1250 rpm), and the washing water contained in the laundry is dehydrated. If the specified time has elapsed, the dehydration 2 process is ended, and the process proceeds to the washing and cleaning 2 process (step S22 to step S25). [0123] In step S22, the engineering control unit 112 executes a water supply project. The drain valve 53 is closed, the water supply solenoid valve 21 is opened, and clean water is supplied into the outer tank 2. If it rises to a specific water level, the water supply is stopped (for example, the water supply solenoid valve 21 is closed), the water supply project is ended, and the process proceeds to step S23. [0124] In step S23, the engineering control unit 112 executes a finishing agent (softening agent) water supply project. The water supply solenoid valve 21 is opened, and washing water containing a softening agent is supplied into the outer tank 2, and the washing water supplied into the outer tank 2 in step S22 is mixed with the softening agent. [0125] In step S24, the engineering control unit 112 performs a rotary water supply and water replenishment project. The water supply solenoid valve 21 is opened, and water is supplied to the outer tank 2. When the water is supplied to a specific water level, the water supply is stopped (for example, the water supply solenoid valve 21 is closed). In addition, while controlling the motor M while supplying water, the drum 3 is rotated in the forward and reverse directions (for example, 40 rpm) and the circulation pump 54 is controlled to a specific rotation speed (for example, 2600 rpm). The washing water sucked in from the drain port 51 is discharged into the drum 3 through a nozzle (not shown) provided at the opening of the outer tank 2, and the softener is allowed to penetrate into the clothes. [0126] In step S25, the engineering control unit 112 executes a washing and stirring process. The so-called washing and stirring process is the same as that of the flapping laundry. The rotation of the drum 3 lifts the clothes stored in the lower part of the drum 3, and the gravity becomes larger than the centrifugal force relative to the clothes. To make the laundry fall from above the inside of the drum 3. [0127] Specifically, the engineering control unit 112 controls the motor M so that the drum 3 is rotated (for example, 40 rpm) and the circulation pump 54 is controlled to a specific rotation speed (for example, 3200 rpm). The washing water sucked from the drain port 51 is discharged from the nozzle (not shown) provided at the opening of the outer tank 2 into the drum 3, and the clothes are washed. After that, if a specific time has passed, the washing and stirring process is ended, and the process proceeds to the dehydration process (steps S26 and S27). [0128] In step S26, the engineering control unit 112 executes drainage engineering. The motor M and the circulation pump 54 are stopped, and the drain valve 53 is opened to drain the washing water in the outer tank 2. The water level sensor 58 continuously monitors the water level of the washing water in the external and secondary tanks 2 during drainage. If the detection value of the water level sensor 58 is lower than a specific water level, the drainage project is ended, and the process proceeds to step S27. [0129] In step S27, the engineering control unit 112 executes a dehydration project. Specifically, the drain valve 53 is opened, and the motor M is controlled to rotate the drum 3 at a high speed (for example, 1000 rpm), and the laundry is centrifuged. After that, if a specific time has elapsed, the motor M is stopped, the drain valve 53 is closed, and the washing cycle (washing-washing-dehydration) is ended. [0130] As described above, according to this embodiment, the washing liquid contained in the laundry is pushed through the laundry (the first agitation process) through the through holes of the drum 3 along with the dirt attached to the laundry. 3b and pushed out to the outer groove 2. The flapping laundry (second agitation process) is the replacement of the washing liquid only at the moment when the laundry drops and conflicts with the drum 3. In contrast, in the push laundry process, the laundry is continuously repeated because of the system The washing liquid is impregnated and dehydrated, so that the replacement of the washing liquid contained in the laundry is promoted. That is, it is possible to shorten the operation time for detecting the dirt concentration. [0131] The washing liquid is pushed out of the clothes by the centrifugal dehydration effect, and the washing liquid in the outer tank 2 is distributed to the clothes by the circulation pump 54 while circulating. Since the washing liquid that has been circulated and distributed is supplied to the clothes, the dirty system is easily penetrated into the washing liquid, and the amount of dirt contained in the washing liquid in the outer tank 2 is increased. The larger the amount of dirt is, the larger the dirt judgment value becomes. Therefore, the accuracy of the dirt density judgment becomes better. [0132] As described above, as the washing machine of this embodiment, the determination method of the dirt concentration has been described with the conductivity sensor 4, but the system is not limited to this embodiment, as long as it is capable of It is sufficient to detect the state of the washing liquid. [0133] The conductivity sensor 4 (conductivity detection means) is not limited to the configuration of the present embodiment, as long as it has a configuration capable of detecting the conductivity of the lotion liquid. For example, although the configuration in which the electrostatic capacitance of the capacitor of the oscillating circuit 80 is changed and the characteristics are switched has been described, the resistor or the coil may be used instead of a capacitor.

[0134]

S‧‧‧ drum type washing machine

M‧‧‧motor (drive)

1‧‧‧frame

2‧‧‧ Outer Slot

3‧‧‧ roller

4‧‧‧ Conductivity detection means

21‧‧‧Water supply solenoid valve

54‧‧‧Circulation pump

112‧‧‧Engineering Control Department

121‧‧‧Water temperature and hardness influence calculation unit

122‧‧‧Large lotion, dirt influence calculation section

123‧‧‧Washing action resetting department

[0010] FIG. 1 is an exploded perspective view showing a washing machine of this embodiment. [Fig. 2] is an external perspective view showing the washing machine of this embodiment. [Fig. 3] is a schematic side view showing the internal structure of the washing machine of this embodiment. [Fig. 4] is a schematic plan view showing the internal structure of the washing machine of this embodiment. [Fig. 5] is a schematic front view showing the internal structure of the upper left side of the washing machine of this embodiment. [Fig. 6] is a perspective view showing the outer tank in the washing machine of this embodiment. [Fig. 7] is a longitudinal sectional view of the central portion of the outer tub in the washing machine of this embodiment. [Fig. 8] is a rear view of the outer tub in the washing machine of this embodiment. [Fig. 9] is a diagram showing the conductivity detection means of the washing machine of this embodiment, (a) is a perspective view of an electrode, and (b) is a longitudinal sectional view of a central portion. [Fig. 10] is a functional configuration diagram of the washing machine of this embodiment. [Fig. 11] is a process drawing for explaining the operation process of the washing operation in the washing machine of this embodiment. [Fig. 12] is a flowchart of determining the type of lotion and determining the time for dissolving the lotion in the washing machine of this embodiment. [Fig. 13] is a functional diagram of the conductivity detection means in the washing machine of this embodiment.

Claims (4)

A washing machine is provided with: a frame body; and an outer tank, which is elastically supported in the aforementioned frame body, and can store liquid inside; and a drum, which is rotatably supported in the aforementioned outer tank, and contains laundry ; And a driving device that drives the drum in rotation; and a water supply means that supplies water to the outer tank; and a detergent supply means that supplies detergent to the outer tank; and a washing liquid state determination means to the aforementioned The state of the liquid in the outer tank is determined; and the operation control means controls the driving device, the water supply means, the detergent supply means, and the washing liquid state determination means. The washing machine is characterized by the operation control Means is to implement the first mixing process and the dirt amount detection process and the second mixing process, the first mixing process is performed before the dirt detection process, and the second mixing process is performed on the dirt After the detection process is implemented, the rotation speed of the drum during the first stirring process is higher than the rotation speed of the drum during the second stirring process And more. The washing machine as described in item 1 of the scope of the patent application further includes a circulation pump that sucks water from the outer tank and disperses water toward the drum. During the first stirring process, It drives the aforementioned circulation pump. The washing machine as described in item 1 or item 2 of the patent application, wherein in the first stirring process, the drum is rotated at a rotation speed of 60 rpm or more, and in the second stirring process, the aforementioned The drum rotates at a rotation speed of less than 60 rpm. The washing machine as described in item 1 or item 2 of the patent application scope, wherein the aforementioned dirt detection process estimates the amount of dirt in the laundry, and changes the operation time of the aforementioned second stirring process according to the estimated result .