TW201111582A - Laundry machine (III) - Google Patents

Abstract

A laundry machine is disclosed, which feature comprising: a pipeline containing the washing liquid; a flowing device for the said washing liquid to flow inside the pipeline; and an electrode sensor having a first electrode part and a second electrode part protrudes out from the said pipeline to detect the electrical conductivity of the said washing liquid. The said second electrode part is located at the downstream side with respect to the first electrode part. The said first electrode part reduces the flow rate of the washing fluid flowing toward the location between the first electrode part and the second washing fluid.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine capable of sensing the conductivity of a washing liquid with high precision. 9

t U » Background Art In recent years, development of a technique for sensing and measuring the physical properties of a washing liquid is underway. Japanese Laid-Open Patent Publication No. Hei-4-187183 discloses a sensor for sensing the type of the lotion or the concentration of the lotion contained in the washing liquid. The _ conductivity of the washing liquid is sensed by applying a high frequency voltage between the electrodes in contact with one of the washing liquids. One of the counter electrode sensors disclosed in Japanese Laid-Open Patent Publication No. Hei 4-18 718-3 is disposed through the bottom surface of the outer groove of the washing machine and disposed along the side wall of the outer groove. The washing liquid flowing along the inner wall surface of the outer tank passes between the pair of electrode sensors. Therefore, the washing liquid between the pair of electrode sensors is in a state of flowing downstream, and the value of the conductivity sensed by the pair of electrode sensors becomes unstable. Therefore, it is difficult to measure the conductivity with high precision. Disclosure of the Invention Problems to be Solved by the Invention An object of the present invention is to provide a washing machine capable of sensing the conductivity of a washing liquid with high precision. A washing machine according to one aspect of the present invention is characterized in that the washing machine comprises: a pipe containing a washing liquid; and a flow device for causing the washing liquid to flow in the pipe in 201111582; and electrode sensing The first electrode portion and the second electrode portion protruding from the conduit, and for measuring the conductivity of the washing liquid, wherein the second electrode portion is located downstream of the first electrode portion, and the The first electrode portion lowers the flow rate of the washing liquid flowing between the first electrode portion and the second electrode portion. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic block diagram showing a drum type washing machine in accordance with an embodiment of the present invention. The second (a) and (b) drawings show the casing used in the drainage control unit of the drum type washing machine shown in Fig. 1. Fig. 3 is a plan view showing a drainage control unit of the drum type washing machine shown in Fig. 1. Fig. 4 is a front elevational view showing the drain control unit of the drum type washing machine shown in Fig. 1. Fig. 5 is a side view showing the drain control unit of the drum type washing machine shown in Fig. 1. Fig. 6 is a side view of the drainage control unit shown in Fig. 5 as viewed from the opposite side. Fig. 7 is a view showing the mounting structure of the light sensor used in the drain control unit shown in Figs. 3 to 6. Figures 8(a) to (e) show the photosensor shown in Fig. 7. The figures 9(a) to (f) show the construction of the bracket of the photo sensor shown in Fig. 8. 4 201111582 Sections 10(a) and (b) show the electrode sensors used in the drainage control unit shown in Figures 3 to 6. Fig. 11(a) and (b) show the structure of the electrode sensor shown in Fig. 1 . Fig. 12 (a) and (b) illustrate the flow of the liquid around the electrode sensor shown in Fig. 11: the flow of the liquid. Fig. 13 is a view showing the flow of the washing liquid in the flow path of the electrode sensor shown in Fig. 7 to the electrode sensor shown in Fig. 7. Fig. 14 is a view showing the flow of the electrode sensor of the drain control unit shown in Figs. 3 to 6 toward the washing liquid of the circulation pump. 15(a) and (b) are diagrams showing the flow of the washing liquid around the electrode sensor during the operation of the circulation pump of the drainage control unit shown in Figs. 3 to 6 and the operation of the drain valve. (a) to (c) are schematic diagrams of the circulation system of the drainage control unit shown in Figs. 3 to 6 . Fig. 17 (a) to (c) are views showing the structure around the inlet of the water tank of the drum type washing machine shown in Fig. 。. Fig. 18 is a view showing the functional configuration of the control circuit portion of the drum type washing machine shown in Fig. 1. C. PREFERRED EMBODIMENTS The preferred embodiment for carrying out the invention will be described below with reference to the drawings. In addition, the terms used in the following descriptions to indicate the directions of the directions are merely for the purpose of explaining the definitions of "upper", "lower", "left", and "right", and are not intended to limit the scope of the invention. . In addition, the terms "upstream" and/or "downstream" used in the following description means "upstream" of the flow of the washing liquid from the discharge port of the washing tub toward the washing liquid of the drain control unit, unless otherwise specified. And/or "downstream". Fig. 1 is a schematic configuration diagram of a drum type washing machine according to an embodiment. Further, the principle described below is not limited to the drum type washing machine shown in Fig. 1, and may be applied to other washing machines (for example, a pulsating pump type washing machine or a stirring type washing machine). The drum type washing machine 1 has a casing 2. A washing tub 3 is provided inside the casing 2. The washing tub 3 includes a cylindrical water tank 31 that is rotatably supported inside the casing 2, a cylindrical rotating drum 32 that is rotatably supported in the water tank 31, and a motor 33 that rotates the rotary drum 32. The water tank 31 and the rotary drum 32 each have a bottom. The motor 330 is mounted outside the bottom of the water tank 31. The water tank 31 liters is made into a discharge port 3丨1 for discharging the washing liquid and an inflow port 312 for the washing liquid to flow therein. The washing liquid is circulated from the discharge port 311 to the inflow port 312. The casing 2 further includes a water supply system 4 that supplies water into the water tank 31, a drainage system that drains or circulates the washing liquid in the water tank 31, and a warm air that is used to dry the washing materials. 3 drying system 6. Furthermore, the drying system 6 is not necessarily necessary. The drying system 6 includes a circulation line which has a fine connection with the discharge port of the water tank 1 and a heart vent which is fed by the bottom of the water tank 31. The drying system 6 further includes a blower 62 disposed in the circulation pipe (10). The blower 62 is configured to allow the air to flow in the «tube (10). The dry system 6 can also be used as needed: "The swarf and 6 201111582 filter for dust removal, the dehumidification unit for dehumidifying the introduced air after dust removal, and a heating unit for heating the dust-removed air and making the dried high-temperature air. The drum type washing machine 1 has an operation panel 8 disposed above the front surface of the casing 2. The operation panel 8 allows the user to select the drum type. The operation schedule of the washing machine 1 or various functions. The operation panel 8 includes a control circuit unit 81. The control circuit unit 81 displays information input by the user on the display unit of the operation panel 8. Further, the control circuit unit 81 It can also be used, for example, as a liquid level sensor for sensing the liquid level in the water tank 31, a light sensor 72 as a turbidity sensor for sensing the turbidity of the washing liquid, or used as The electrode sensor 73 of the conductive sensor that senses the conductivity of the washing liquid receives the sensing signal. When the operation of the drum type washing machine 1 is started through the operation panel 8, the control circuit unit 81 controls the water supply based on the sensing signals. The solenoid valve 75 included in the system 4 or the drain valve 75 included in the drainage system 5. The motor 33, the water supply system 4, the drainage system 5, and the drying system 6 which are automatically controlled by the control circuit unit 81 are based on the mode setting or control program. After the operation, at least the washing step, the rinsing step, the dehydrating step, and the drying step are performed. The water supply system 4 includes: a water supply line 41 connected to the water tank 31, and a lotion accommodating portion 42 for accommodating the lotion. The water supply line 41 can be supplied to the water tank 31 in a timely manner by the switching operation of the electromagnetic valve (refer to the solid arrow in the first drawing). Further, the drum type washing machine 1 shown in Fig. 1 uses the water supply system 4 The lotion in the lotion accommodating portion 42 disposed partially across the water supply line 41 is appropriately put into the water tank 31. The drain system 5 includes: one having a connection with the discharge port 311 of the water tank 31 201111582 And the drainage water control system connected to the other end of the first line 51::: yuan: is to take the water from her row and 丨s. The circulation control unit 7 has the circulation help = 疋 on the base Claw. The end of the second line 52 It is connected to the circulation assist, and the other end of the magic police road 52 is connected to the flow inlet of the water tank 31 into a circulation path of the ^, Xian, (four) road 51, the drainage (four) unit 7 and the second pipeline 52 liquid. In the system 71, the washing liquid flows and circulates from the discharge port 311 toward the inflow port 312 in the circulation path. Drainage (4) Single tearing "In addition to 71: after sensing, liquid turbidity turbidity sensor is used. The photo sensor 72 is used as a sensing and washing: conductivity sensing of the strip liquid conductivity, a shape sensing electrode 73, a drain line 74 for discharging the washing liquid to the outside, and a drain line Μ The drain valve 75 is located in the middle. The drain valve 75 is used to open and close the drain line 74. The drain control unit 7 further includes a washing liquid for collecting the flow from the i-th line 51: cotton fiber (cotton dust, etc.) Filter unit 76. The drain valve 7.5 is opened, for example, at the end of the washing step or at the end of the rinsing step. As a result, the detergent liquid flows from the i-th pipe 51 to the drain control unit 疋7. Then, the washing liquid is subjected to removal treatment of the cotton fibers through the filter portion 76, and then discharged to the outside. When the drain valve 75 is closed and the circulation pump 71 is actuated, the washing liquid in the water tank 31 flows into the drain control unit 7 through the first line 51. Then, the washing liquid passes through the filter portion 76 disposed in the drain control unit 7, and the dirty component is removed. The washing liquid that has passed through the filter unit 76 flows into the circulation pump 71 through the suction line 711 that is connected to the suction pump 71 and that attracts the 201111582 port. Then, the washing liquid is returned to the water tank 31 through the second line 52 connected to the discharge port of the circulation pump. During the execution of the washing step or the rinsing step, the above-mentioned washing liquid circulation may be repeated as needed. The recirculation of the washing liquid is provided in the cleaning step or the rinsing step of the product. The number of rotations of the circulation pump 71 can also be changed. When the number of rotations of the circulation pump 71 is set high (for example, 35 rpm), the washing liquid flowing into the inlet 312 of the water tank 3 _1 moves along the execution toward the inside of the rotating drum 32 (refer to the arrow in Fig. 1). Fi). On the other hand, when the number of rotations of the circulation pump 71 is set low (for example, 1 OOO rpm), the washing liquid flowing into the inlet 312 of the water tank 31 faces the space formed between the rotary drum 32 and the water tank 31 ( Refer to arrow Fo) in Figure 1. The circulation pump 71 performs low-speed rotation at the start of at least one of the washing step and the rinsing step, for example. As a result, it is possible to suppress the washing of the high-concentration softening agent which has been dissolved in the spinning drum 32 after the washing agent or the softening agent which has been dissolved at the end of washing. The washing liquid flowing into the space between the rotary drum 3 2 and the water tank 3 1 is discharged from the discharge port 311 toward the drain system 5, and is returned to the inflow port 312 of the water tank 31 (circulation step in the water tank). By repeating the inner tank circulation step, the dissolution of the lotion is promoted, and/or the concentration of the softener is uniformized. Further, problems such as dissolution of the residual lotion or a high concentration of the softening agent to cause the washing of the laundry can be appropriately avoided. The circulation step in the water tank is preferably set after about 10 seconds of the water supply step in the washing step and/or the rinsing step, for example. Instead, the circulation step in the water tank is also 〇1lll582, which can be started, for example, when sensing the liquid level of about 4 Gmm from the lower end of the water tank 31. As a result, it is possible to appropriately prevent the operation of the circulation pump 71 during the period in which the filament is sufficiently filled in the circulation system 71. Moreover, it is possible to avoid the strange temperature caused by the eaxatation of the 71, the abnormal temperature of the cycle of the pump 71, and the operation of the cycle (10) at the abnormal temperature. The drum type washing machine 1 may further have a pump for supplying the bath water to the water tank 31. > The pump may also perform a water tank internal circulation step after supplying the bath water to the water_. Further, when the pooling of the bath water supply is different from the cycle m, the operation 'can suppress the large d-sound which makes the user feel unpleasant. It is also possible to set a predetermined operation for (4) the clothes machine by operating the φ plate 8. When the drum type washing machine is in the brain operation, the circulation step in the water tank can be performed, for example, twice as long as the normal time. As a result, it is possible to dissolve the lotion which is solidified in the reserved standby towel (the period of the post-setting washing machine after the reservation is set). Moreover, during the scheduled operation, sufficient detergency can be obtained and the amount of undissolved washing can be reduced. The drum type washing machine 1 also has a temperature sensor as needed. The length of the circulation step in the water tank is changed in response to the temperature of the washing liquid measured by the temperature sensor. For example, when the temperature sensor senses the temperature of the washing liquid of 5 t, an in-tank circulation step of, for example, a length that senses the temperature of the washing liquid of 20 ° C is performed. As a result, the lotion can be sufficiently dissolved even at a low water temperature. Fig. 2 is a cross-sectional view showing the casing of the drainage control unit 7 shown in Fig. 1. Fig. 2(a) shows a section of the casing. Fig. 2(b) shows a section on the opposite side of the casing.

10 201111582 The drainage control unit 7 includes a casing 7〇. A circulation pump 71, a light sensor (four) 72, an electrode sensor 73, a drain line 74, a drain valve 75, and a material 76 shown in the figure are attached to the casing 7A. The basket (4) includes a straight pipe portion extending in the horizontal direction. The straight pipe portion 7G1 has an end portion connected to the first pipe 51. The housing 70 further includes a housing tube portion 702 connected to the other end portion of the straight portion f 7G1, and the connecting portion 702 is extended obliquely upward from the connecting portion of the straight tube portion 7 (1). The casing includes a reduction portion 76 that is housed in the storage tube portion 7. The Ministry of Finance removes cotton fibers from the cleaning fluid. The straight pipe portion 7〇1 and the housing pipe portion 702 are integrally formed to constitute one pipe. The straight tube portion 7〇1 having a slightly rounded *6' shape includes a flat inner surface 772. The flat inner surface 772 extends from the middle of the straight tube portion 7G1 toward the downstream storage tube portion. A flat inner surface 772 extending along a horizontal plane passing through the central axis of the straight portion 701 forms a flat strip-like region extending toward the receiving tube portion. The use of light sensing (4) for the light exiting and receiving the flat inner surface 772 prevents unwanted refraction of the infrared light used by the light sensor 72. The straight pipe portion 701 is formed with a pair of through holes 773. The through hole 773 is inserted through the electrode sensor 73. The electrode portion of the electrode sensor 73 protrudes into the straight tube portion 7〇1 and is in contact with the washing liquid in which the straight tube portion 7〇1 is covered. Below the internal space of the housing tube portion 702, a first opening portion 774 connected to the drain line 74 and a second opening °! 5 771 connected to the suction port of the circulation pump 71 are formed. The first opening portion 774 and the second opening portion π 1 are provided on the surface facing the through hole 773 of the straight tube portion 7〇1. The first opening 774 is a connecting portion that is connected to the drain pipe 74. Further, the second opening portion 771 is a connection portion that is connected to the circulation pump 71. 201111582 The transition portion 76 has a filter 776 that forms a mesh shape and a cover portion 704 that is connected to the filter 776. The lid portion 7〇4 is sealingly connected to the front end opening portion of the housing tube portion 702. Filter 776 is formed to remove cotton fibers. The cover portion 7〇4 includes a take-up portion 7〇5. The take-up portion 7〇5 is extended outward from the outer surface of the cover portion 7〇4 along the axis of the commander 702. The filter unit is detachably attachable to the housing tube unit 702. Therefore, the user can easily detach the filter portion 76 from the accommodating tube portion 702 by taking the take-up portion. Figure 3 is a plan view of the drainage control unit 7. Figure 4 is the drainage control sheet 兀7. The first section is a side view of the drainage control unit 7 by the observation. Fig. 6 is a side view of the drainage control unit 7 as viewed from the electrodes. The third, fifth, and sixth diagrams partially show the i-th line 51. The washing liquid flows from the water tank 31 through the if road 51 to the drain control unit 7. The sensitizer 7 2 is the turbidity of the washing liquid of the person_water control unit 7. Fig. 7 shows a photo sensor 72 attached to the straight tube portion 701 of the casing 70 of the drainage control unit 7. Fig. 8 is a front view (Fig. 8(b)), a right side view (10) (c (4), a left side view (8th (4))) and a plan view of the longitudinal surface of the photosensor 72 (Fig. 8(a)). (Fig. 8(e)). Fig. 9 is a longitudinal sectional view (Fig. 9(4)), a front view (9th (8th)), and a right side (9th (C)) of the support body of the photosensor μ. ), the left side view (9th (4th)), the plan view (9th (4th)), and the bottom ring (9th (f)). The light sensor 72 includes: a light-emitting element 72 that emits infrared light, and a change of Sto The light-receiving element 722 of the infrared ray emitted from the member 721. The light-emitting element 721 and the light-receiving element 722 disposed on the outer side of the straight S 卩 701 are mutually opposed to each other 12 201111582 to form infrared light between the light-emitting element 721 and the light-receiving element 722. The straight tube portion 701 is formed of a material that transmits infrared light. The infrared light from the K element 721 passes through the washing liquid filled in the space surrounded by the tube wall portion of the straight tube portion 7〇1. When the turbidity is large, the amount of light that reaches the infrared light of 722 is reduced. On the other hand, the turbidity of the apricot and the first washing liquid is small. The amount of light of the infrared light of the optical element 722 becomes large. Moreover, the photo sensor 72 functions as a turbidity detector for sensing the washing liquid. 'X turbidity photosensitive sensor 72 is further useful. The support 723 having the light-emitting element 721 and the light-receiving element 722 is provided. The support having a slightly U-shaped cross section includes: an ith support portion 724 for supporting the light-emitting element 721, and a second support for supporting the receive member 722 The support portion 725 and the bridge portion 726 that connects the first support portion 724 and the second support portion 725. The bridge portion 726 is held at a position where the light-emitting element 721 and the light-receiving element 722 oppose each other. The first support portion 724 is disposed at a right angle with respect to the axis of the straight tube portion 701. The first support portion 724 is provided with a circuit board 727 for emitting infrared light from the light-emitting element 721 in addition to the light-emitting element 72. The second support portion 725 is provided in addition to the text. In addition to the optical element 722, a circuit board 728 for generating a voltage signal in response to the amount of infrared light received by the light receiving element 722 is disposed. Further, the photo sensor 72 includes power for supplying power to the circuit boards 727, 728. Wire 729. The plate-shaped circuit boards 727 and 728 (see FIGS. 7 and 8) have a longitudinal direction axis extending in the vertical direction. The first support portion 724 has an inner side surface 241 facing the second support portion 725. The lens portion 211 including the light-emitting element 721. The infrared light emitted from the light-emitting element 13 201111582 721 passes through the lens portion 2 ι and faces the second support portion 725. The lens portion 211 is slightly raised relative to the other portion of the inner side surface 241. The second opening is formed by the edge extending in the upper direction toward the inner side surface 241. The first rib 242 protrudes from the inner side surface 241 in the inner side (the central axis direction of the straight tube portion 〇1). The second support portion 725 has the inner side surface 251 facing the first support portion 724. The inner side surface 251 includes a lens portion 221 of the light receiving element 722. The infrared ray emitted from the illuminating element 721 passes through the lens portion 221 and reaches the light receiving element 722. The lens portion 221 is slightly raised relative to the other portion of the inner side surface 251. The second rib 252 is formed along the edge extending in the upper direction toward the inner side surface 251. The second rib 252 projects from the inner side surface 251 to the inner side (the central axis direction of the straight tube portion 7A). The outer surface of the wall portion of the straight tube portion 701 forming the flat inner surface 772 is also formed flat. Therefore, the infrared light emitted from the light-emitting element 721 is not refracted by the two walls of the official portion 701. The support body 723 is externally fitted from the upper side toward the straight tube portion 701. The light-emitting element 721 emits infrared light from the outside of the straight tube portion 7〇1. The light receiving element 722 receives infrared light outside the straight tube portion 701. When the support body 723 is fitted to the straight tube portion 701, the i-th rib 242 of the second support portion 724 and the second rib 252 of the second support portion 725 abut against the flat outer surface of the straight tube portion 701. The second rib 242 and the second rib 252 are separated from the inner side surfaces 241 and 251 of the first support portion 724 and the second support portion 725 by the flat portion 701. As a result, damage of the lens portions 211 and 221 and the straight tube portion 7〇1 caused by the fitting of the support 723 and the straight tube portion 701 can be suppressed. Therefore, the pressure (fitting force) between the ribs 242, 252 and the outer surface of the straight pipe portion 701 can be set high. Moreover, the support S' 14 201111582 body 723 can be firmly mounted to the straight tube portion 701. The central portion of the bridge portion 726 of the support body 723 is formed with an annular receiving wall 261 extending in the vertical direction. The annular receiving wall 261 is formed with a receiving plate 262 that forms an upper surface of the bridging portion 726 and a cylindrical receiving space 263. The carrier plate 262 is formed with a through hole 264. The through hole 264 is in communication with the accommodating space 263. The straight pipe portion 701 has a cylindrical protruding portion 265 that extends upward. When the fitting of the support body 723 and the straight tube portion 701 is completed, the protruding portion 265 is inserted into the accommodating space 263, and the upper surface of the protruding portion 265 abuts against the lower surface of the receiving plate 262. The protruding portion 265 is formed with a screw hole extending downward. The screw inserted into the through hole 264 of the receiving plate 262 is screwed with the screw hole of the protruding portion 265. Further, the support body 723 is firmly fixed to the straight tube portion 701. The receiving plate 262 that straddles the light-emitting element 721 and the light-receiving element 722 can receive falling objects such as dust or water droplets toward the portion of the straight tube portion 7〇1 on which the support 723 is attached. Referring again to Figures 2 through 6. The drain valve 75 disposed on the slightly downstream side of the photosensor 72 can be coupled to the casing 70 of the drain control unit 7 via the drain line 74. When the drain valve 75 is opened, the straight pipe portion 7〇1 and the washing liquid coated in the receiving weir portion 702 are drained to the outside through the drain pipe 74. The connection position between the draining e path 74 and the casing 7G can be used as the vicinity of the base end of the housing tube portion. As a result, by opening the draining water 75, a liquid flow of the washing liquid which is reversed when the circulating spring 71 is actuated occurs in the vicinity of the material portion of the accommodating tube portion 7〇2 and the accommodating tube portion and the recording portion 7G1. The electrode sensing $73 is more slightly closer to the downstream side than the connection position of the drainage f and the receiving f (10). The electrode sensor is disposed closer to the downstream side than the photo sensor 72. The photo sensor 72 can function as a turbidity sensor for sensing the turbidity of the soap solution 15 201111582. The electrode sensor 73 functions as a conductive sensor for sensing the conductivity of the washing liquid. The electrode sensor 73 has a pair of terminal plates 731, 732. The terminal is provided on the downstream side of the terminal block 731. The two terminal plates are each connected to the wires 733, and the terminal plates 73 732 are supplied with a high-frequency AC voltage. The frequency of the applied electric power and the amplitude can be measured only by measuring the conductivity of the washing (4), and are not particularly limited. A schematic diagram of the _ series terminal plate 731. Side view of Figure 10 (a) 731. The 1G (1) diagram is a front view of the terminal block 73. Refer to Figures 3 and 6 together with the figure. Further, the terminal plate 732 downstream of the second to sixth figures can be formed as a handle-like shape of the terminal plate 731, and the terminal plate 731 is formed of one metal plate. The terminal block 731 constitutes a flexure k. The boundary curve 734 extending in the up-and-down direction is a boundary, and the edges 735, 736 of the terminal block 731 are deflected in the same direction. Therefore, the terminal plate 731 has high rigidity with respect to the bending moment about the axis of the transverse bending curve 734. Above the terminal block 731. A connecting portion 737 connected to the electric wire 733 is formed. A thick portion 738 having a disk shape and a cylindrical electrode portion 739 are formed on the surface of the terminal plate 731 opposite to the direction in which the edges 735 and 736 are deflected. The terminal plate 731 is connected to the base end portion of the electrode portion 739 via the thick portion 738. The ring 371 is fitted to the base end portion of the electrode portion 739. The electrode portion 739 is inserted into the through hole 773 formed in the straight tube portion 701 of the casing 7 of the drain control unit 7 (see Fig. 2). The terminal block 731 is formed to face the through hole 310. One of the through holes 310 is phased 201111582 for the electric weight ° 739 is located above. The other through hole 31 is located at the position of the electrode portion 739 with respect to the electrode portion 739. The pair of through holes 31A and the electrode portions 739 are arranged in line. The meandering curve 734 is flat with respect to a line connecting the center points of the pair of through holes 3''. A through hole 31 is inserted into a fixture called a bolt. Further, the penetration function is a function of the terminal plate 731 attached to the fixing portion on the outer surface of the straight tube portion 7〇1. With the fixing tool, the ring 371 which is attached to the base end portion of the electrode portion 739 by the terminal plate 731 to the outer surface of the straight tube portion 701 is compressed. The tl ring of 37 y and the fixture inserted into the through hole 31 使 cause the terminal plate to generate a torque. The left and right edges of the sub-board 731 are bent along a deflection curve extending in the direction in which the pair of through holes 31 are arranged in the back, whereby the terminal plate Μ1 has high rigidity against the bending moment. Therefore, the terminal block 731 is firmly attached to the outer surface of the straight pipe portion 7〇1. As a result, the ring 371 disposed at the base end portion of the electrode portion 739 is strongly compressed to exhibit high sealing performance. Further, the leakage of the knee-washing liquid can be appropriately suppressed by the through-hole 773 formed in the straight tube portion 7〇1. Further, in the present embodiment, the 'flexure curve 734 is orthogonal to the axis of the f-torque, and the angle 734 between the axis of the bending moment and the axis of the bending moment is not fixed. Further, in the present embodiment, the middle portion and the through hole 31 are not provided as the fixing portion, but other fixing methods may be used instead, for example, the terminal plate 731 is crimped to the outer wall of the straight tube portion 7〇1 by using a jig. The terminal plate 731 is crimped to the outer wall of the straight tube portion 7G1 by a manual method or with sufficient force to cause the ankle ring to function as a sealing function. Further, when the jig is used, the function of the part fixing portion of the terminal plate 731 of the shirt is held. Fig. 11 is a cross-sectional view of the straight pipe portion 7 () 1 to which the terminal plates 731, 732 are attached, 17 201111582. The U-picture (a) is a cross-sectional view of the terminal block 73i and the electrode portion 739 located on the upstream side. Fig. 11(b) is a cross-sectional view of the terminal plate 732 and the electrode portion 739 located on the downstream side. The flat inner surface 772 of the straight cut straight portion 701 protrudes from the electrode of the P in the straight tube portion 701. The crucible 739 is in contact with the washing strip liquid coated in the straight tube portion 7〇. A high-frequency AC voltage is applied to the terminal plates 731 and 732 through the electric wires 733', and the conductivity (impedance) of the cleaning liquid existing between the counter electrode portions 739 is measured. The liquid flow of the washing liquid around the electrode portion 739 is shown in a pattern. Further, in Fig. 12, the electrode portion on the upstream side is attached with the reference numeral 739a, and the electrode portion on the downstream side is attached with the reference numeral 73%. As shown in Fig. 12, the pair of electrode portions 739a and 739b are arranged side by side in the longitudinal direction of the straight tube portion 701. The plane P defined by the axes of the pair of electrode portions 739a and 739b is substantially parallel to the axis of the straight tube portion 7〇1. The upstream electrode portion 7 3 9a splits the washing liquid flowing along the axis of the straight pipe portion 611 into the upper and lower directions. Therefore, the flow rate of the washing liquid that crosses the plane p becomes small. As a result, in the space between the electrode portions 739a and 739b for measuring the conductivity of the washing liquid (for example, a space of 15 mm or more and 3 mm or less), the fluidity of the washing liquid is lowered. Further, the flow of the washing liquid suitable for the measurement of the conductivity was obtained. Further, as shown in Fig. 12, the plane p including the axes of the pair of electrode portions 739a and 73% is a horizontal plane. The pair of electrode portions 739a, 739b are preferably not to cross the upper portion of the inner space of the straight tube portion 701 (the drainage control unit 7 is designed to have a space for storing oxygen in the month b (for example, the internal space of the straight tube portion 7〇1) Middle and upper side 1/5 area)) and straight pipe part 701 lower part of internal space (drainage control

SJ 18 201111582 The single cymbal 7 is designed to accumulate space for dirty components (for example, the area of the lower side 丨/5 in the inner space of the straight tube portion 701)). As a result, the entire surface of the protruding portions of the electrode portions 739a and 739b is in contact with the washing liquid in the straight tube portion 7〇1. Therefore, the influence on the conductivity of the air in the straight tube portion 7〇1 can be suppressed. Further, when the electrode portions 739a and 739b protrude in the region of the upper side 4/5 of the internal space of the straight tube portion 701, the influence on the measurement of the conductivity of the dirt component deposited in the straight tube portion 701 can be suppressed. Fig. 13 schematically shows the flow of the washing liquid around the photo sensor 72 and the electrode sensor 73. Fig. 13 shows the optical path 250 of the infrared light between the light-emitting element 72A of the photosensor 72 and the light-receiving element 722 as described in the seventh to ninth drawings. Further, similarly to Fig. 12, reference numeral 739a is attached to the electrode portion disposed on the upstream side, and reference numeral 739b is attached to the electrode portion disposed on the downstream side. In order to prevent unnecessary refraction of the infrared ray forming the optical path 250, the upstream end portion 277 formed on the flat inner surface 772 of the inner wall surface of the straight tube portion 701 is embossed by the other inner wall surface. Therefore, the upstream side end portion 277 disturbs the flow of the washing liquid. Therefore, in order to adjust the flow of the washing liquid until reaching the optical path 25, the upstream end portion 277 is preferably formed at a position relatively far from the upstream side with respect to the optical path 25A. At this time, the liquid liquid of the cross-cut optical path 25 () is suitable for the measurement of the infrared light of the light-receiving element π of the photosensor 72 which is related to the description of FIGS. 7 to 9 (4) flow. The red thread of the light sensor 72 does not affect the production of the ride. Therefore, the flow of the rectified washing liquid reaches 73% of the electrode portion. As explained in Fig. 12, 'by the upstream electrode part 7, he parallels 201111582, and SQ (the part of the liquid flow in the direction of the axis of 57G1 is shunted up and down. The result is washed; the liquid flow will be The disturbance of the liquid machine of the washing liquid caused by the disturbed I electrode portion 7 is caused by the light sensor 72 that is closer to the light sensor 72 described in Figs. 7 to 9 (4). The influence of the degree measurement is as described in Fig. 12, which is defined by the axes of the electrode portions 739a and 739b: the plane P is substantially parallel to the axis of the straight tube portion m. Therefore, for example, if the degree is in the straight e J7G1 The liquid is in a countercurrent flow (the direction from the straight tube portion 7qi toward the discharge port 311 of the water tank 31 (refer to Fig. 1)). The electrode portion 73 causes the liquid flow of the knee-washing liquid to flow up and down, but the electrode 11a is in the wash. In the direction of the money, it will overlap with the electrode portion 7', so that the liquid flow of the washing test is not excessively disturbed. Therefore, even if the washing is reversed, the turbidity of the washing liquid passing through the optical path 250 can be sensed with higher precision. The upper edge 391 of the boundary line defining the upper side of the flat inner surface 772 and the boundary line defining the lower side of the flat inner surface 772 In the lower edge 392, the straight tube portion 7〇1 is formed into a concave cross-sectional contour shape (see Fig. 7). In the portion constituting the contour shape of the buckling surface, the liquid flow of the washing liquid is higher than that of the other portion. The portion is easily retained. As shown in Fig. 13, the electrode portions 739a and 739b are disposed such that a portion of the cross section of the electrode portions 739 & 739b enters the flat inner surface 772. The upper edge is held by the electrode portions 739a and 739b. In the vicinity of 391, since the washing liquid is particularly liable to stay, it is possible to obtain a liquid flow suitable for measuring the low fluidity of the conductivity of the washing liquid. Further, the plane p and the upper edge 391 defined by the electrode portions 739a and 739b are obtained. In a substantially parallel manner, the measurement accuracy of the conductivity can be further improved. Referring again to Figures 1 to 5, the downstream of the electrode sensor 73 is provided with a 201111582 circulation pump 71. The circulation pump 71 and the basket of the drainage control unit 7 A suction line 711 is disposed between the bodies 70, and the suction line 711 includes one end connected to the suction port of the circulation pump 71 and a second opening 771 connected to the casing of the drainage control unit 7. His end. The second is extended by the circulation pump 7丨The path 52 is connected to the inflow port 312 formed in the water tank 31. Fig. 14 is a plan view schematically showing the flow of the washing liquid from the electrode sensor 73 to the circulation pump 71. Fig. and Fig. 2. Fig. 14 shows a suction line 711. As shown in Fig. 14, the electrode sensor 73 is disposed at a connection portion 771 between the suction line 711 and the drainage control unit 7 (2nd) In the figure, the second opening portion 7 71 is shown closer to the upstream side. Further, similarly to Fig. 12, the electrode portion disposed on the upstream side is denoted by reference numeral 739a, and the electrode portion disposed on the downstream side is denoted by reference numeral 739b. The straight pipe portion 701 and the accommodating pipe portion 702 constituting the casing 70 of the drainage control unit 7 form a straight flow path in plan view (in FIG. 14, the boundary between the straight pipe portion 7〇1 and the accommodating pipe portion 702 is dotted. Express). The suction line 711 is connected to the straight tube portion 701 and the pen DC path formed by the housing tube portion 702. The suction line 711 extends in a direction different from the direction in which the straight line portion 701 and the accommodating tube portion 702 extend in the direction in which the straight line portion is extended (the direction of the drainage control unit 7 shown in Fig. 14 is a right angle direction). The washing liquid flowing along the pen-line path is subjected to the attraction from the circulation system 71 to change the flow direction, and flows toward the suction line 711. The electrode sensor 73 protrudes from the inner surface of the straight tube portion 7〇1 on the side opposite to the connecting portion 771. In addition, the "inner surface on the side opposite to the connecting portion 771" means the straight tube portion 701 and the housing tube portion 7 along the longitudinal direction axis of the straight tube portion 7〇1 and the housing tube portion 7〇2. When the 〇2 is separated, it exists on the inner surface of the position 21 201111582 which is far from the connecting portion 771, and is based on the axis of the suction line 711, for example, located upstream and/or downstream, within the phase difference suction line 711. The inner surface area of the housing tube portion 702 and/or the straight tube portion 701 having a length of 3 to 4 times the diameter. Preferably, the sensor a is based on the axis of the suction line 711, and is located at the inner side and/or downstream of the inner diameter of the suction tube 711 by 3.5 times the length of the housing tube portion 7〇2 and/or the inner surface of the straight tube portion. The region, more preferably, is a trough tube portion 702 and/or a straight tube portion 701 which is three times the inner diameter of the upstream and/or downstream phase difference suction pipe 711, based on the axis of the suction pipe 711. Inner area. The electrode portions 739a, 739b of the electrode sensor 73 protrude from the inner surface region. Fig. 14 shows an arbitrary point P1 on the section c of the pipe near the electrode sensor 73. The point P1 is an arbitrary point away from the position of the connecting portion 771 (i.e., in the vicinity of the surface opposite to the connecting portion 771). In the case, the flow force of the washing liquid in the direction from the base end portion of the electrode portions 739a and 739b toward the tip end portion is activated. Therefore, by disposing the electrode sensor 73 at a position opposed to the connecting portion 771, the removal of the cotton fiber stuck in the electrode sensor 73 can be promoted. As described above, the electrode portions 739a and 739b form projections in the straight tube portion 7〇1. Therefore, the cotton fibers contained in the washing liquid flowing into the control unit 7 are easily caught on the electrode portions 739a and 739b. However, by the flow force V1, the cotton fibers stuck to the electrode portions 739a, 739b are relatively easily removed by the electrode portions 739a, 739b. Further, as shown in Fig. 2, a part of the interference portion 76 (see Fig. 1) accommodated in the housing tube portion 702 exists between the electrode sensor 73 and the connection portion 771. In Fig. 14, the filter portion 76 is schematically shown in the mesh region. The washing liquid passes through the electrode sensor 73 existing at the upstream position of the filter portion 76, and is disposed in the housing tube portion before reaching the suction line 711 at the position downstream of the filter portion 76, S' 22 201111582 Filter portion 76 in 702. Therefore, the cotton fibers are collected by the filter portion 76 after being removed by the electrode portions 739a and 739b. Further, since the filter portion 76 has a function of resisting the flow of the washing liquid, the flow of the washing liquid around the electrode portion can be rapidly lowered after the circulation pump 71 is stopped. Fig. 15 is a view for explaining the use of the j-chestnut 71 and the drainage chamber 7 5 to remove cotton, and to cut off. The 15th (a) diagram schematically shows a plan view of the flow of the washing liquid from the electrode sensor 73 to the circulation pump 71. The 15th (b)th diagram schematically shows a plan view of the flow of the washing liquid from the electrode sensor 73 to the drain valve 75. Refer to the figure in conjunction with Figure 15. Further, Fig. 15 shows a suction line 711 which forms a flow path to the circulation α and a drain line 74 which forms a flow path to the drain valve 75. Further, in the same manner as in Fig. 12, the upstream electrode portion is attached with a reference numeral 73, and the downstream electrode portion is attached with a reference numeral 739b. Furthermore, the i5(a) diagram is the same as the pattern diagram shown in the figure 俜, and is used to display the flow pattern of the washing liquid shown in Figure 15(b). Compared. As shown in Fig. 15(a), the electrode sensor is preferably disposed downstream of the connection portion 7V4 (the second opening portion 774) of the drain line 74, and is connected to the connection portion of the = lead line 7U. 771 (the second opening portion π) is disposed upstream. = by the configuration of the electrode sensor 73 of (4), the electrode portion is smooth and 73% s. In the P injury, when the drain compartment is opened, the flow of the reverse wash is generated when the circulation pump 71 is actuated as shown in the figure b (1). Further, the cotton fibers of the electrodes 739a and 739b are easily removed by the electrode portions 739a and 739b. 23 201111582 View of the circulation pump 71 from the suction port side. The pump 71 includes a pump casing 713 that forms an outer wall of the circulation pump 71. Inside the pump casing 713. The crucible is provided with a bearing partition 714. The bearing partition 划 divides the inner two portions of the pump casing 713 into two spaces. A turbine 717 is disposed in the space connected to the suction port 715. A motor 718 is disposed in a space adjacent to the space in which the turbine 717 is disposed. Motor 718 is suitable for use, for example, with a DC brushless motor. The rotating shaft 719 of the motor 718 is transverse to the bearing partition 714 and extends toward the space in which the difficulty 717 is disposed. The turbine 717 that has been integrated with the bearing partition 714 is supported by the rotating shaft 719. The turbine 717 is rotated together with the bearing partition 714 by the drive of the motor 718. The pump casing 713 is formed with a suction port 715 connected to the suction pipe 711 and a discharge port 716 connected to the second pipe 52. The suction port 715 and the spout outlet 716 are connected to a space in which the turbine 717 is disposed. The dressing seat 131 protrudes from the outer surface of the pump casing 713 toward the radial direction. The mounting pocket 31 of the circulation pump 71 shown in Fig. 16 includes three C-shaped women's pieces 132 which protrude largely toward the outside. The mounting piece 132 is fixed to the protruding portion of the base 712 (see FIG. 1) by bolts. Fig. 17 shows the structure of the connection portion between the water tank 31 and the second duct 52. Figure 17 (a) is a plan view of the conduit forming the joint. Chapter 7 (b) Figure is a cross-sectional view of the catheter shown in Figure 17 (a). Figure 17 (c) is a longitudinal section of the catheter shown in Figure 17 (a). The inlet 312 of the water tank 31 is formed by an annular rib 121 that protrudes upward from the outer wall of the water tank 31. An ankle ring 122 is disposed along the inner circumferential surface of the annular rib 121. The 0 ring 122 is pressed by the duct groove 520. 24 201111582 The guide S groove 520 has a body portion 521 that is bent into an L shape. The body portion 521 includes a conduit 522 connected to the second conduit 52 and a lower conduit 523 extending from the conduit 522 toward the inlet 312. The front end portion of the lower half pipe 523 has an annular projection portion constituting an outer peripheral contour complementary to the opening portion of the machine inlet 312. The inside of the upper portion 525 is provided with a pressing wall 123. The pressing wall 123 is bent downward to a solitary shape by a substantially central position of the inner space of the annular dog outlet portion 525 and has a cross section toward the center of rotation of the rotary drum 32. The two materials of the pressing wall 123 are connected to the inner wall surface of the annular protrusion 525. An annulus 122 is disposed between the annular projection 525 and the annular rib 121. The ankle ring 122 is compressed between the annular projection 525 and the annular rib 121, and functions as a sealing member. The lower half pipe 523 of the duct groove 520 is adjacent to the annular rib 121, and is fixed to the thick portion formed on the wall portion of the water tank 31 by using the fixture 125 (in FIG. 17, the pedestal is represented by the fixture 125). 124. The conduit groove 520 further includes a cover 524. The cover 524 and the lower half of the conduit (2) are flexed by the flow path formed by the conduit 522 to form a flow path toward the flow population 312. By the operation of the circulation pump, the second (f) is flushed through the conduit groove 520' to the inflow port 312. Furthermore, the county (four) rotates at a number of revolutions of, for example, 3,500 rpm. 9 ° 卩 - 仏 pure rotating drum 32. A bearing wall is disposed between the upper surface of the rotating drum 32 and the inlet. The collision wall (3) is cut by a connecting wall 127 which is connected to the outer wall of the water tank 31. The wall m forms a narrow flow path with the extruded wall 123. This narrow flow path serves as a function of ejecting the washing jet into the ejection opening 129 in the washing tank 3. 25 201111582 The washing liquid passing through the injection port 129 formed by the bearing wall 126 and the pressing wall 123 is then passed through a flow formed between the end wall 128 of the outer surface constituting the outer surface of the water tank 31 and the front end wall 321 of the rotary drum 32. The road 28 is supplied to the inside of the rotary drum 32. The front end wall 128 cooperates with the pressing wall 123 to urge the annulus 122. The injection port 129 is formed separately from the rotary drum 32. The laundry in the rotary drum does not come into contact with the ejection port 29. Therefore, the ejection port 125> hardly adversely affects the washing step, the rinsing step or the drying step. The vent 129 does not damage the laundry, break it, and hardly damage the appearance of the laundry. Further, the flow path 281 downstream of the injection port 129 is formed by the front end wall 128 of the water tank 31 and the front end wall 321 of the rotary drum 32, so that an additional structure for preventing water leakage is not required. In the configuration shown in Fig. 17, only the ankle ring 122 is used as the sealing member. The front end wall 128 of the water tank 31 and the front end wall 321 of the rotary drum 32 form a loop-shaped outlet portion 282. The washing liquid passing through the flow path 281 is passed through the annular outlet portion 282' and is ejected toward the central axis of rotation of the rotary drum 32. The washing liquid sprayed through the outlet portion 282 can be efficiently injected into the inner rotation region of the rotary drum 32. Further, the cleaning liquid can be efficiently supplied to the laundry irrespective of the amount of the laundry accommodated in the rotary drum 32. The inner surface of the front end wall 128 of the water tank 31 (the surface on which the flow path 281 is formed) includes an inclined surface 283 and a curved surface 284. The inclined surface 283 which gradually reduces the cross-sectional area of the flow path 281 toward the downstream gradually increases the flow rate of the washing liquid passing through the flow path 281. Therefore, the washing liquid passing through the flow path 281 is accelerated toward the curved surface. The curved surface 284 is curved so that the flow direction of the washing liquid changes toward the bottoms S, 26, 201111582 of the rotating drum 32. Therefore, the washing liquid sprayed from the outlet portion 282 is directed toward the bottom of the rotary drum 32. As a result, the washing liquid can be efficiently supplied to the laundry. The opening of the injection port 129 covers a predetermined range of the circumferential direction of the washing tub 3. The connecting wall 127 and the receiving wall 126 open the injection port 129 in the direction of the central axis of rotation. The connecting wall 127 and the receiving wall 126 hardly disturb the washing liquid flowing into the inflow port 312 and are guided to the flow path 281. The washing liquid is diffused in the circumferential direction to the injection port 129, and then settles into the flow path 281. Then, the washing liquid is further diffused in the circumferential direction and flows to the annular outlet portion 282. Therefore, the washing liquid is ejected from the entire outlet portion 282, and can be stably supplied to the laundry regardless of the amount of the laundry accommodated in the rotary drum 32. The cover 524 of the conduit groove 520 forms a flow path toward the inflow opening 312 using a simple mounting configuration. The shape and size of the cover 524 covering the inflow port 312, the shape and size of the connecting wall 127, and the shape and size of the retaining wall 126 are appropriately set to thereby allow suitable washing liquid to flow into the rotary drum 32. The flow width, flow thickness and flow rate of the washing liquid sprayed from the injection port 129 can be appropriately determined by appropriately setting the design parameters of the cover 524' connecting wall 127 and the retaining wall 126'. Further, the washing liquid can be efficiently supplied to the laundry regardless of the amount of the laundry accommodated in the rotary drum 32. The mounting structure of the cover 524 of the duct groove 520 shown in Fig. 17, or the very simple structure of the connecting wall 127 and the retaining wall 126 contributes to the suppression of water leakage and the reduction in cost. As described above, the duct groove 520 forms a flow path toward the inflow port 312 in the lower half pipe 523 and the cover 524. As shown in Fig. 1, the conduit groove 52 is formed. 27 201111582 The flow path extends along the outer surface of the water tank 31. Therefore, the lower half pipe 523 and the cover 524 are used, and a small gap between the water tank 31 and the casing 2 forms a flat pipe having a rectangular cross section. The flat piping is used to define a flow of the stripping liquid suitable for the shape, size, and thickness of the injection port 129. The wash liquid passing through the flat line is rectified toward the injection port 129. A plurality of ridges 322 are formed on the front end wall 321 of the rotating drum 32. The ridge 322 extends in a circumferential direction of the front end wall 321 of the rotary drum 32 within a predetermined length. The position of the plurality of ribs 322 in the circumferential direction and/or the position in the radial direction may be different from each other. The rib 322 can partially reduce the cross-sectional area of the flow path 281 downstream of the ejection opening 129. In the vicinity of the outlet portion 282, the cross-sectional area of the flow path is narrowed by the ridge 322, and in the case where the cross-sectional area of the flow path is narrowed by the ridge 322 at the exit portion 282, the movement trajectory of the washing liquid ejected from the outlet portion 282 different. Therefore, the washing liquid discharged from the outlet portion 282 is oscillated to a wide range in the rotary drum 32, and the washing liquid is supplied to the laundry with higher efficiency. The shape of the ridge 322 is not limited to that shown in Fig. 17. For example, the ridge 322 may have a wave shape or a blade shape. A rib 322 of any shape that can change the movement trajectory of the washing liquid discharged from the outlet portion 282 can also be used. Further, it is also possible to arrange the protrusions 322 of any shape in which the movement of the washing liquid discharged from the outlet portion 282 is changed. A gap 266 is formed between the bearing wall 126 and the rotating drum 32. When the circulation pump 71 is operated at a low speed (e.g., 1000 rpm), the washing liquid flows into the gap 266 from the injection port 129. The washing liquid flowing into the gap 266 is conveyed toward the discharge port 311 of the water tank 31 in the space between the rotary drum 32 and the water tank 31. 28 201111582 Fig. 18 is a diagram showing the functional configuration of the control circuit unit 81. The control circuit unit 81 includes an arithmetic unit 813, a determination unit 814, and a signal transmission unit 815. The calculation unit 813 calculates, for example, the type of the lotion, the concentration of the lotion, and the amount of the soiled component based on the signals from the photo sensor 72 and the electrode sensor 73. The determination unit 814 determines whether or not to execute the predetermined control based on the result calculated by the calculation unit 813. For example, when the amount of the dirty component calculated by the calculation unit 813 exceeds a predetermined threshold value, the determination unit 814 causes the signal transmission unit 815 to transmit a signal for operating the water supply system 4 and/or the drainage system 5. The signal transmitting unit 815 receives an instruction from the determining unit 814 and then transmits a signal for operating the water supply system 4 and/or the drain system 5. For example, the signal transmitting portion 815 sends a signal to the solenoid valve signal of the water supply system 4, causes the solenoid valve to be in an open state, and sends a signal to the drain valve 75 of the drain system 5 to open the drain valve. Refer to Fig. 1 together with Fig. 18. A period for determining the state of the washing liquid is set between the washing step and/or the rinsing step. At this time, the control circuit unit 81 transmits a signal (stop signal) for causing the operation of the circulation pump 71 to the circulation pump 71. When the circulation pump 71 is stopped, the flow of the washing liquid in the drain control unit 7 is stopped. As a result, a state suitable for measurement using the photo sensor 72 and/or the electrode sensor 73 is obtained. However, after the stop signal is transmitted, the inertial movement of the circulation pump 71 or the inertial flow of the washing liquid itself may flow, and the flow of the washing liquid in the drain control unit 7 may continue for a predetermined period of time. In the above-described embodiment, since the filter unit 76 is disposed in the vicinity of the sensors 72 and 73, it is possible to suppress the flow of the washing liquid after the stop signal is transmitted at an early stage. Therefore, the turbidity and conductivity of the washing liquid can be measured with high precision in a relatively short period of time. In the present embodiment, at the downstream of the sensors 72 and 73, the upstream side of the second opening 771 (connecting portion 771) connected to the suction line 711 shown in Fig. 2 is provided with filtering. Part 76. Therefore, the influence of the inertial motion of the circulation pump 71 or the vibration of the circulation pump 71 can be appropriately moderated by the filter portion 76. Moreover, the turbidity and conductivity of the washing liquid can be measured with higher precision. In the above description, the electrode sensor 73 for measuring conductivity is exemplified as a sensor protruding from the flow path, but the above principle is not limited thereto, and may be applied to any one that must be in direct contact with the washing liquid. A washing machine that senses the physical properties of the washing liquid. In the above description, the photo sensor 72 is used to measure the turbidity of the washing liquid, but it can also be used for other measurement purposes. The above principles can also be applied to photosensors 72 for sensing the accumulation of soiled components, or other physical or environmental changes that can be suitably measured using photosensor 72. In the above description, the flow device for flowing the washing liquid is exemplified, but the washing liquid may be flown by using a propeller or the like disposed in the circulation path or the flow path. The above embodiment mainly includes a washing machine having the following configuration. The washing machine according to one aspect of the embodiment includes: a pipe containing a washing liquid; a flow device for flowing the washing liquid in the pipe; and an electrode sensor having a protrusion The first electrode portion and the second electrode portion of the pipeline are used for measuring the conductivity of the washing liquid, wherein the second electrode portion is located opposite to the first electrode portion

30 201111582 The downstream electrode describes the first electrode portion such that the flow rate of the washing liquid flowing between the second electrode portion and the second electrode portion is lowered. According to the above configuration, the washing liquid contained in the pipe flows through the flow device. The electrode having the electrode portion and the second electrode portion protruding from the tube and the second electrode portion measures the conductivity of the stripping liquid between the core electrode portion and the second electrode portion. The second electrode is disposed downstream of the i-th electrode portion. The first electrode portion serves to reduce the flow rate I of the washing liquid flowing between the i-th electrode portion and the second electrode portion. The juice can be obtained by measuring the conductivity of the washing liquid. Moreover, the measurement accuracy of the conductivity of the washing liquid can be improved. In the above configuration A, the first electrode portion and the second electrode portion are preferably arranged side by side in the longitudinal direction of the pipe. According to the above configuration, the first electrode can further reduce the flow rate of the wash in between the first electrode portion and the second electrode. Therefore, the measurement accuracy of the electrical conductivity of the washing is further improved. In the above configuration, it is preferable that all of the portions of the second electrode portion and the second electrode portion that protrude into the tube are in contact with the washing liquid. According to the above configuration, air can be suppressed from being present between the first electrode portion and the second electrode portion. The result is a measure of the stability of the conductivity of the wash liquor. v constituting the towel </ RTI> The first electrode portion and the second electrode portion are preferably protruded in a space of 4/4 of the upper portion of the internal space of the piping. According to the above configuration, the measurement of the conductivity of the washing liquid becomes almost impossible for the party to accumulate in the first! A material of a sweat component under the conduit between the electrode portion and the second electrode portion. Moreover, the determination of the granules can be provided. In the above configuration, the plane defined by the axis of the i-th electrode portion and the axis of the second electrode portion 31 201111582 is preferably a horizontal plane. According to the above configuration, the presence of air or the accumulation of the dirty components hardly affect the measurement of the conductivity of the washing liquid using the long electrode portion protruding into the pipe. Therefore, by increasing the amount of protrusion of the electrode portion, the conductivity of the washing liquid can be measured with higher precision. In the above configuration, the electrode sensor further includes: a ring that is fitted to the base end of the electrode portion; and a terminal plate that is connected to the base end and is fixed to the outer surface of the pipe, wherein the terminal The plate has a first fixing portion and a second fixing portion for mounting the electrode sensor on the outer surface of the pipe, and the 0 ring is located between the first fixing portion and the second fixing portion, and the The terminal block has an edge portion bent at a bending line extending along an arrangement direction of the first fixing portion and the second fixing portion. According to the above configuration, the loop is compressed between the terminal plate and the outer surface of the pipe. Therefore, between the first fixed portion and the second fixed portion, the recovery force of the ankle ring acts to bend the moment load to the terminal plate. The terminal plate having the edge portion of the folding curve extending along the alignment direction of the first fixing portion and the second fixing portion has high rigidity against the bending moment caused by the recovery force of the ring. Therefore, in order to make the annulus highly sealable, the terminal plate can be strongly pushed against the outside of the pipe. Further, it is possible to appropriately suppress leakage of liquid from the portion of the pipe through which the electrode portion passes. In the above configuration, a plurality of through holes are formed in the plurality of fixed portions, and the bending line is a bending line parallel to a line connecting the center points of the plurality of through holes. According to the above configuration, the rigidity of the terminal plate to the bending moment can be further improved. In the above configuration, it is preferable to further include a filter unit for removing the dirt component of the dirty water contained in the washing water, and the filter portion is disposed in the vicinity of the electrode sensor. According to the above configuration, the filter portion functions to resist the flow of the washing liquid in the pipe. Therefore, after the flow device is stopped, the fluidity of the washing liquid around the electrode sensor can be reduced in a short time. Moreover, the conductivity of the washing liquid can be measured in a short time and in a stable manner. In the above configuration, the filter unit is preferably disposed downstream of the electrode sensor and upstream of the flow device. According to the above configuration, the transition portion acts as a resistance to the flow of the washing liquid between the electrode sensor and the flow device. Therefore, the influence from the flow device conveyed by the washing liquid can be alleviated. Further, the measurement of the electrical conductivity of 13⁄4 precision is achieved in a short period of time after the flow device is stopped. In the above configuration, the conduit preferably includes a straight pipe portion in which the electrode sensor protrudes, and a housing pipe portion that is connected to the straight pipe portion and disposed upstream of the flow device and houses the filter portion, and the storage tube The portion is inclined upward with respect to the straight pipe portion. According to the above configuration, the air bubbles that have flowed into the straight tube portion are pushed into the housing tube portion, and it becomes difficult to return from the housing tube portion. Therefore, it is difficult to store the bubbles in the straight tube portion, and the conductivity of the washing liquid can be measured with high precision. Further, the head of the washing liquid contained in the tube portion can suppress the unnecessary flow of the washing liquid caused by the inertial movement of the flow device after the signal for stopping the flow device is transmitted. Moreover, the conductivity of the washing liquid can be measured with high precision. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing a configuration of a drum type washing machine according to an embodiment of the present invention. The second (a) and (b) drawings show the body of the drainage control unit used in the drum type washing machine shown in Fig. i. Fig. 3 is a plan view showing a drainage control unit of the drum type washing machine shown in Fig. 1. Fig. 4 is a front elevational view showing the drain control unit of the drum type washing machine shown in Fig. 1. Fig. 5 is a side view showing the drain control unit of the drum type washing machine shown in Fig. 1. Fig. 6 is a side view of the drainage control unit shown in Fig. 5 as viewed from the opposite side. Fig. 7 is a view showing the mounting structure of the light sensor used in the drain control unit shown in Figs. 3 to 6. Figures 8(a) to (e) show the photosensor shown in Fig. 7. The figures 9(a) to (f) show the construction of the bracket of the photo sensor shown in Fig. 8. The 10th (a) and (b) drawings show the electrode sensors used in the drainage control unit shown in Figs. 3 to 6. Fig. 11(a) and (b) show the mounting structure of the electrode sensor shown in Fig. 10. Fig. 12 is a view showing the flow of the washing liquid around the electrode sensor shown in Fig. 11. Fig. 13 is a view showing the flow of the washing liquid in the flow path from the photo sensor shown in Fig. 7 to the electrode sensor shown in Fig. 11. 34 201111582 Fig. 14 is a view showing the flow of the electrode sensor of the drainage control unit shown in Figs. 3 to 6 toward the washing liquid of the circulation pump. 15(a) and (b) are diagrams showing the flow of the washing liquid around the electrode sensor during the operation of the circulation pump of the drainage control unit shown in Figs. 3 to 6 and the operation of the drain valve. (a) to (c) are schematic diagrams of a circulation pump of the drainage control unit shown in Figs. 3 to 6 . Fig. 17 (a) to (c) are views showing the structure around the inlet of the water tank of the drum type washing machine shown in Fig. 1. Fig. 18 is a view showing the functional configuration of the control circuit unit of the drum type washing machine shown in Fig. 1. [Description of main component symbols] 1...Drum type washing machine 2: Housing 121: Annular rib 211... Lens part 122...0 ring 221...Lens part 123...Extrusion Wall 241... inner side surface 124... thicker portion 242... first rib 125... fixture 250... optical path 126... receiving wall 252... second rib 127... connecting wall 251... inner side surface 128... front end wall 261... housing wall 129... injection port 262... carrier plate 131: mounting seat 263: housing space 132... mounting piece 264... through hole 35 201111582 265··· protruding portion 266... gap 277···upstream side end portion 281...flow path 282···outlet portion 283···inclined surface 284...curved surface 3:.washing tank 31...sink 310. . through hole 311.. discharge port 312... inflow port 313.. exhaust port 32.. rotating drum 321.. front end wall 322.. . protruding bar 33.. . motor 371.. .0. 391.. . Upper edge 392.. . Lower edge 4.. Water supply system 41.. Water supply line 42.. Lotion accommodating part 5.. Drainage system 51.. . 1st line 52.. ·Second line 520... conduit groove 521.. body portion 522.. conduit 523... lower half pipe 524... cover 525.. annular projection 6.. drying system 61.. Circulation line 62.. .Air blower 7...Drainage control unit 70...Room 701... Straight pipe part 702.. Containment pipe part 704... Cover part 705... Take-up part 71.. Circulating pump 711 .. .Circulation line 712... base 713.. pump casing 714.. bearing partition 715.. . suction port 716.. . vent outlet 36 201111582 717.. . Turbo 718.. . motor 719.. Rotating shaft 72.. Light sensor 721.. Light-emitting element 722.. Light-receiving element 723.. Support 724... 1st support part 725... 2nd support part 726.. Bridge Department 727.. Circuit board 728.. Circuit board 729.. Wire 73... Electrode sensor 731.. Terminal board 732.. Terminal board 733.. Wire 734.. .. . edge portion 736.. edge portion 737.. connection portion 738.. thicker portion 739.. electrode portion 739a... upstream electrode portion 739b... downstream electrode portion 74.. Road 75.. Drain valve 76.. Filter portion 771... 2nd opening (connection) 772... Flat inner surface 773.. Through hole 774.. · First opening 776.. Filter 8 .. Operation panel 81.. Control circuit unit 813.. Calculation unit 814.. Determination unit 815.. Signal transmission unit P... Plane P1... Point VI··· Flow force 37

Claims (1)

201111582 VII. Patent application scope: ι_ A washing machine, characterized in that: a pipeline, which contains a washing liquid; a flow device, which causes the aforementioned washing to flow in the aforementioned #; and, the electrode senses H, a first portion and a second electrode portion protruding from the conduit, and for measuring a conductivity of the cleaning liquid, wherein the second electrode portion swims relative to the second electrode portion, and the first electrode material The flow rate of the washing liquid flowing between the second electrode portion and the second electrode portion is lowered. 2. The washing machine according to claim 2, wherein the first electrode portion and the second electrode portion are arranged side by side in a longitudinal direction of the conduit. 3. The washing machine of claim i, wherein the portion of the electrode portion and the second electrode portion projecting in the conduit is in contact with the washing liquid. The washing machine according to the third aspect of the invention, wherein the second electrode portion and the second electrode portion protrude in a space of 4 parts above the inner space of the pipe. The washing machine of the third aspect of the invention, wherein the plane defined by the axis of the electrode portion and the axis of the second electrode portion is a horizontal plane. 6. The washing machine of claim i, wherein the electrode sensor 38 201111582 The invention further includes: a ring that is fitted to the base end of the electrode portion; and a terminal plate that is connected to the base end and is fixed to the outer surface of the pipeline, wherein the terminal plate has a function for sensing the electrode The first fixing portion and the second fixing portion are attached to the outer surface of the pipe, and the ring is located between the first fixing portion and the second fixing portion, and the terminal plate has the first portion along the first The washing machine, wherein the fixing portion and the second fixing portion are arranged in a direction in which the bending line is bent. 7. The washing machine according to claim 6, wherein the plurality of fixing portions are formed with a plurality of through holes, and the front portion The bending line is a bending line parallel to a line connecting the center points of the plurality of through holes. 8. The washing machine according to any one of claims 1 to 7, which further has a washing water for removing the washing water. And a filter unit according to the eighth aspect of the invention, wherein the filter unit is disposed in the electrode sensor; The washing machine of the present invention, wherein the pipeline includes: a straight pipe portion protruding from the electrode sensor and connected to the straight pipe portion and configured The storage tube portion of the filter unit is accommodated upstream of the flow device, and the valley tube portion is inclined upward with respect to the straight tube portion.