TWI422724B - Washing machine (1) - Google Patents

Description

Washing machine (1) Field of invention

The present invention relates to a washing machine capable of performing an operation control such as washing and rinsing operation in response to contamination of a washing liquid.

Background of the invention

Conventionally, in such a washing machine, the light transmittance of the washing liquid is detected by a photo sensor, and the degree of drop of the dirt is detected according to the rate of change to perform operation control, and the structural portion for detecting the transmittance is used. The light transmission is not too bad, and a water supply device is proposed to flow into the drain valve portion constituting the photo sensor to wash the light penetration portion (refer to Patent Document 1).

Fig. 7 is a longitudinal sectional view of a conventional washing machine of Patent Document 1, and Fig. 8 is a cross-sectional view of a light transmitting portion of the same drain valve. As shown in Fig. 7, the drain valve 10 is provided with a turbidity detecting device 14, which emits infrared light and receives light, and detects the turbidity of the washing liquid based on the degree of light transmission and the rate of change to detect the laundry. The degree of soiling.

As shown in Fig. 8, the light-emitting portion 16 emits infrared rays, penetrates the thin portions 15, 15 ' formed in the drain valve 10, and receives light in the light receiving portion 17.

Further, the drain valve 10 is formed with a pipe portion 18, and the hole 19 of the pipe portion 18 is formed in a slightly tangential direction of the inner diameter portion 21 of the drain passage 20 of the drain valve 10. The pipe portion 18 is connected to the washing hose 22, and is connected to the water supply device 26 formed inside the upper cover 23 of Fig. 7.

The water passing through the tube portion 18 from the cleaning hose 22 flows along the inner diameter portion 21, and the thin portion 15, 15 ' , that is, the penetration portion of the light, is washed with a small amount of water, whereby the wear can be accurately grasped. Detection of turbidity in the permeable portion.

However, in the above-described conventional configuration, the washing water flows in a spiral shape to the inner periphery of the thin portions 15, 15 ' which are the light-transmitting portions for cleaning, and has a certain effect, but the hole from the tube portion 18 The washing water of 19 touches the thinner portion 15 close to the light-emitting portion 16 at a relatively high flow rate, and the washing effect is high, but the washing water whose flow rate has been lowered touches the light-receiving portion 17 which is close to the 180-degree confrontation position. The thinner portion 15 ' does not provide a sufficient cleaning effect.

That is, even if the light penetrating portion is washed, the stain becomes gradually attached due to the change over the years. Therefore, the degree of penetration of the thin portion 15 and the thin portion 15 ' of the infrared ray which is emitted by the light-emitting portion 16 and received by the light-receiving portion 17 changes. In particular, there is a problem that the flow rate (flow rate) from the water supply device varies greatly in the degree of penetration between the light-emitting portion and the light-receiving portion.

Advanced technical literature

Patent literature

[Patent Document 1] Japanese Patent Laid-Open No. 3-133496

Summary of invention Means to solve the problem

The washing machine of the present invention has an outer groove that is elastically suspended in the casing; an inner groove that is rotatably supported in the outer groove; a driving portion that drives the inner groove to rotate; and a water supply valve that is provided In the upper part of the casing; the drainage duct is configured to discharge water from the outer tank; the light penetrating portion is disposed in the drainage duct; and the turbidity detecting portion detects the turbidity of the washing liquid by the degree of penetration of the light; a hose for connecting a water supply valve and a drain conduit; the cleaning tube is coupled to the washing hose and formed in the drain conduit; and the control unit controls the driving portion, the water supply valve, etc., and sequentially Control a series of procedures for cleaning, rinsing, and dehydration. The cleaning tube has a cylindrical diffusion tube portion having a pair of cleaning holes formed to be directed to the turbidity detecting portion. The control unit operates the water supply valve and cleans the light penetration portion of the turbidity detecting unit or/and its vicinity by a pair of cleaning holes through the cleaning hose and the cleaning tube.

Effect of the invention

In this way, the tap water can be directly washed by the light-emitting portion of the turbidity detection of the washing liquid and the light-transmitting portion of the light-receiving portion or in the vicinity thereof, so that it is possible to prevent the change of the detergent residue or the dirt from being changed due to the change over the years. The degree of penetration and the reduction of the detection function can be suppressed.

Simple illustration

Fig. 1 is a longitudinal sectional view of a washing machine in an embodiment of the present invention.

Fig. 2 is a block circuit diagram of a washing machine in an embodiment of the present invention.

Fig. 3 is a cross-sectional view showing a drain conduit portion of the washing machine in the embodiment of the present invention.

Fig. 4 is a cross-sectional view showing a light transmitting portion of a drain duct portion of the washing machine in the embodiment of the present invention.

Fig. 5 is an external view of a water supply diffusion member provided in a drain duct portion of the washing machine in the embodiment of the present invention.

Fig. 6 is a view showing the order of washing to dehydration of the washing machine in the embodiment of the present invention.

Figure 7 is a longitudinal sectional view of a conventional washing machine.

Fig. 8 is a cross-sectional view showing a light penetrating portion of a drain valve of a conventional washing machine.

Form for implementing the invention

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same components as those in the prior art are denoted by the same reference numerals and the description thereof will be omitted. Further, the present invention is not limited to the embodiment.

Fig. 1 is a longitudinal sectional view of a washing machine in an embodiment of the present invention, and Fig. 2 is a block circuit diagram of a washing machine.

In the first drawing, the casing 41 is configured such that the outer tank 43 is elastically suspended by the plurality of suspension devices 42 and the vibration of the dehydration is absorbed by the suspension device 42. The inside of the outer tank 43 is disposed to accommodate the laundry and the drying object inner groove 44 is hollow and has a double structure, and is rotated around the washing and dewatering shaft 45, and is disposed at the bottom of the inner groove 44. A pulsator 46 that rotates to agitate the laundry or dry the object.

Further, the inner peripheral wall of the inner groove 44 is provided with a plurality of pumping holes for dehydrating, and can have both the vent holes 44a at the time of drying and the fluid balancer 47 provided above. The motor (drive unit) 48 is attached to the bottom of the outer tank 43 and is coupled to the inner tank 44 by switching the rotational force transmission to the clutch 49 of the washing and dehydrating shaft 45 and the washing and dehydrating shaft 45 during washing or dehydration. Or pulsator 46. The pulsator 46 is formed in a shape of a slightly pot having an inclined surface 50 at the outer peripheral portion, and forms a stirring projection 51 which can be stirred during the washing process and which is formed by the rotation of the pulsator 46 in the drying process. The centrifugal force causes the object to be dried to easily rise upward along the inclined surface. That is to say, it is configured such that the laundry is changed to the left and right (rotation direction) by stirring, and the movement can be changed up and down.

The heat exchange conduit 52 is for dehumidifying the circulated humid warm air (circulating wind), and one end is connected to the drainage path port 54 provided at the lower portion of the outer tank 43 via the connection duct 53, and the other end is connected to the warm air circulation. The inlet side of the path 57 is located at one end of the circulation receiving chamber 59 at the lower portion of the drying fan 55.

A heater 56 is provided on the upper portion of the drying fan 55, and the outlet side of the warm air circulation path 57 is connected to the upper and lower telescopic hoses 58 having the warm air ejection holes 60. Thereby, the warm air circulation path 57 which is circulated by the circulating air plenum 59 to the inner groove 44 is formed, and the above-described components including the warm air circulation path 57 constitute the warm air blowing portion 61.

The temperature detecting portion 62 is provided on the inlet side of the warm air circulation path 57, and the temperature detecting portion 63 is provided on the outlet side, and the circulating air temperature at the time of the drying program is detected.

A filter 64 is provided in the circulation air receiving chamber 59, and the circulating air is circulated through the filter 64, and the off-line or the like which occurs by the laundry is collected by the filter 64.

The outer groove 43 is provided with a groove cover 65 for airtightly covering the upper surface of the outer groove 43, and a warm air discharge hole 60 from the upper and lower telescopic hose 58 is opened toward the outer groove cover 65. Further, the outer tank cover 65 is provided with a switchable upper cover 66, and is provided for taking in and taking out clothes.

The upper portion of the casing 41 is provided with a frame body 68 having an upper portion of the laundry insertion opening 67, and a switchable cover 69 is provided to cover the clothes insertion opening 67.

Further, a support member 71 provided with a warm air blowing portion 61, a water supply valve 70, and the like is provided inside the rear portion of the upper casing 68.

The water supply valve 70 is configured as a plurality of valves that can switch two or more water passages, one of which has a small flow rate, and is connected to a washing pipe 77 formed in the drain conduit 75 by a washing hose 72. The other water passage is a large flow rate, and the water supply hose 73 is connected to the inner tank 44 via the water injection member (not shown) provided in the support member 71, and the wash water can be supplied.

A drain conduit 75 and a drain valve 74 for discharging water in the outer tank 43 are provided at the bottom of the outer tank 43, and are connected to the heat exchange conduit 52 and the connecting duct 53 via the drain conduit 75. The drain from the connecting duct 53 and the heat exchange duct 52 leads to the drain duct 75, the drain valve 74, and is drained to the outside by the drain hose 76. Further, as described above, the drain duct 75 is formed with a washing tube 77, and the washing tube 77 is connected to one end of the washing hose 72 of the water supply valve 70.

Further, the drain duct 75 is provided with a turbidity detecting unit 92 attached to the upstream of the drain valve 74, and the turbidity detecting unit 92 is configured to emit infrared light (infrared light) or visible light ‧ light, by the degree of penetration and the rate of change To detect the turbidity of the wash water and detect the degree of dirtiness of the clothes.

A pair of electrodes (conductivity detecting portions) 78 are provided inside the outer peripheral portion of the outer groove 43, and the pair of electrodes detects the conductivity of the washing water to detect the presence or absence of water or the type of the lotion. Since the electrode 78 is located below the outer groove 43 and below the outer peripheral portion of the pulsator 46, it is difficult to be affected by the flow of water by the rotation of the pulsator 46, and the conductivity can be stably detected.

The cooling blower 79 is attached to the side surface of the casing 41, and is configured to be capable of blowing air into the inside of the casing 41 to cool the outer tank 43, the heat exchange duct 52, and the like.

The control device 80 is integrally formed, and is disposed substantially vertically on the back surface portion (inner cover) 81 of the casing 41, and a cooling blower 79 is provided on the lower side of the control device 80. Further, the control device 80 is covered by the cover 82 and protected.

The front surface of the upper casing 68 is provided with an operation display unit 85 including an input setting unit 83 and a display unit 84 which will be described later in the second drawing.

In the block circuit diagram of Fig. 2, the control device 80 includes a control unit 87 that controls the motor (drive unit) 48, the clutch 49, or the drying fan 55 constituting the warm air blowing unit 61 via the load driving unit 86. The heater 56, the drain valve 74, the cooling blower (cooling unit) 79, the water supply valve 70, and the like have operations for controlling washing, rinsing, dehydrating, and drying, and a sterilization/deodorization program.

The control unit 87 is constituted by a microcomputer or the like, and the commercial power source 88 is powered by the power switch 89 being turned ON to start the operation. The control unit 87 inputs the outputs of the water level detecting unit 90 and the temperature detecting units 62 and 63, and displays the setting contents on the display unit 84 based on the contents set by the user input by the input setting unit 83. Further, the control unit 87 controls the motor 48, the clutch 49, the drying fan 55, the heater 56, the drain valve 74, the cooling blower 79, the water supply valve 70, and the load driving unit 86 constituted by a bidirectional thyristor or a relay. The operation of the water suction pump 91 and the like, and the procedures of washing, rinsing, dehydrating, and drying are controlled. Further, the input setting unit 83 and the display unit 84 constitute an operation display unit 85.

Further, the control unit 87 detects the type of the lotion or the clothing based on the conductivity of the washing liquid obtained by the conductivity detecting unit 78, the degree of infrared ray penetration obtained by the turbidity detecting unit 92, and the rate of change thereof. The degree of contamination, etc., and control of each program.

Moreover, the control unit 87 is configured to turn off the heater 56 when the temperature detected by the temperature detecting unit 63 reaches the first predetermined temperature (for example, 110 ° C) in the drying program, and the temperature detecting unit at this time When the temperature detected by 62 falls to the second predetermined temperature (for example, 2 deg), the heater 56 is operated to adjust the temperature of the circulating air.

Fig. 3 is a cross-sectional view of the drain duct portion, Fig. 4 is a cross-sectional view showing a light transmitting portion of the drain duct portion, and Fig. 5 is an external view showing a water supply diffusing member provided in the drain duct portion.

In the third, fourth, and fifth views, the water supply diffusion member 93 is installed inside the drain duct 75 which is connected to the washing pipe 77 of the drain duct 75 via the water supply valve 70 and the washing hose 72 described above.

The water supply diffusion member 93 is formed with a bottomed cylindrical diffusion pipe portion 94. The cylindrical portion 95 of the diffusion pipe portion 94 communicates with the pipe hole 96 of the cleaning pipe 77, and the water from the water supply valve 70 passes through the pipe hole 96. The cylindrical portion 95 supplies water. Further, the diffusing pipe portion 94 is disposed with a pair of cleaning holes 97 which are slightly splayed in a shape slightly below the horizontal plane.

Further, the cleaning tube 77 may be integrally formed with the water supply diffusion member 93, and may be individually connected.

As described above, the drain duct 75 is provided with a turbidity detecting unit 92 attached to the upstream of the drain valve 74. The turbidity detecting unit 92 emits light such as infrared rays or visible rays, and transmits the light, and transmits the degree of penetration and the rate of change. The turbidity of the wash water is detected and the degree of soiling of the laundry is detected.

Further, the light is transmitted through the light-emitting portion 99 to the drain conduit 75 and also to the thin portions 98a and 98b of the light-transmitting portion to the light-receiving portion 100. Further, the pair of cleaning holes 97 formed in the diffusing pipe portion 94 of the water supply diffusion member 93 are disposed so as to be formed at two portions of the thin portions 98a and 98b, that is, the turbidity detecting portion. 92.

In other words, the water supply valve 70 is connected to the cleaning hose 72, the tube hole 96 of the cleaning tube 77, and the water supplied from the cylindrical portion 95 of the diffusion tube portion 94. The inside of the portion 94 is increased in pressure, and the pair of cleaning holes 97 are strongly discharged to the inner faces of the thin portions 98a and 98b of the light-transmitting portion, and the adhered detergent residue or dirt becomes a cleaning flow. Further, the total cross-sectional areas of the cleaning holes 97 are formed to be smaller than the cross-sectional area of the cylindrical portion 95 of the diffusion tube portion 94.

In the above configuration, the basic operation of the drying process is explained by washing, rinsing, and dehydration. Figure 6 shows the sequence of washing, rinsing, and dehydration procedures.

In the washing process, the outer cover 69 is opened, the middle cover 66 is opened, and the laundry and the lotion are put into the inner tank 44, and when the operation is started, the water supply is supplied to the predetermined water level in the inner tank 44, and then the motor 48 is driven. At this time, the power of the motor 48 is transmitted to the pulsator 46 via the washing shaft by the clutch 49 of the transmission mechanism portion, and is rotated by the pulsator 46, and the laundry is hooked on the stirring projection 51 of the pulsator 46, and is Pull to the center. The laundry in the lower portion of the center of the inner groove 44 is pushed up toward the upper portion of the inner groove 44 because of the laundry being pulled in. In this manner, the laundry in the inner tub 44 is agitated by the mechanical force and the water flow force acting between the clothes or the inner wall of the inner tank 44 or the pulsator 46.

In the flushing (1) program, the drain valve 74 is opened to drain the water in the inner tank 44 from the drain hose 76, and the clutch 49 of the transmission mechanism portion is switched to the dehydrating side, and the power of the motor 48 is passed through the dehydrating shaft. It is transmitted to the inner tub 44, rotated, and centrifugal force is applied to the laundry, whereby moisture is separated from the laundry to perform dehydration. Next, after the motor 48 and the clutch 49 are turned off, the water supply a is supplied to the predetermined water level, and the motor 48 is again driven to start the stirring for removing the lotion from the clothes.

In the flushing (2) program, that is, in the final flushing procedure, drainage and dehydration are performed in the same manner as in the flushing (1). When this is completed, the water supply b first operates the small-flow water supply valve 70 to start cleaning the hose 72 side. Water supply. The supplied water passes through the tube hole 96 of the cleaning tube 77 and the cylindrical portion 95 of the diffusion tube portion 94, and is strongly discharged by a pair of cleaning holes 97 to the thinner portions 98a, 98b which are also light-transmitting portions. The adhered lotion residue or dirt becomes a cleaning stream. At this time, the drain valve 74 is in an open state. Next, after the short-time water supply b is performed, the drain valve 74 is closed, and then the water supply valve 70 of a large flow rate is operated to start the water supply to the water supply hose 73, and is supplied to the inner tank 44 via the water injection member (not shown) or the like. Schedule the water level and start flushing.

Furthermore, the above flushing (1) procedure can be omitted depending on the degree of soiling of the laundry or the amount of laundry.

In the spin-drying process, after the flushing is completed, the drain valve 74 is opened to drain the water in the inner tank 44 from the drain hose 76, and the clutch 49 of the transmission mechanism portion is switched to the dehydration side, and the power of the motor 48 is transmitted via the dehydration shaft. The inner tub 44 is rotated to apply a centrifugal force to the laundry, thereby separating the moisture from the laundry. In the same manner as the water supply b operation of the flushing (2) procedure, the water supply valve 70 having a small flow rate is operated to start the water supply to the cleaning hose 72 side, and the cleaning tube is passed. The tube hole 96 of the 77, the cylindrical portion 95 of the diffusion tube portion 94 is strongly discharged by a pair of cleaning holes 97 to the thinner portions 98a, 98b which are also light-transmitting portions, and the adhered detergent residue or dirt Become a cleaning stream. Then, when the short-time water supply b ends, the dehydration process of the residual time is performed in this state, and the washing is completed until the dehydration is completed.

Although it is omitted in the sequence table of Fig. 6, in the drying process, after the clutch 49 is switched to the washing side, the motor 48 is driven to be transmitted to the pulsator 46, and the pulsator 46 is rapidly rotated forward and reversed. Thereby, the laundry attached to the inner wall of the inner tub 44 after dehydration is peeled off. Then, the pulsator 46 is rotated forward and reverse, and the clothes are hooked by the stirring projections 51 to be stirred, and the warm air is sent to the warm air by the drying fan 55 and the heater 56. The wind blasts the hole 60. The warm air blown into the inner tank 44 by the warm air discharge hole 60 causes the moisture to evaporate from the laundry, and is discharged from the inner tank 44 to the inner side of the outer tank 43, and then reaches the heat exchange conduit 52 through the connection duct 53 through the drain path port 54.

When the warm air containing the moisture of the clothes and the moisture containing the moisture passes through the inner wall of the outer tank 43 or the heat exchange duct 52, the outer air is cooled by the inflow of the outside air of the cooling blower 79 provided on the side of the casing 41. Or the outer wall of the heat exchange conduit 52. Thereby, condensation of moisture occurs in the inside of the outer tank 43 or the heat exchange duct 52, and the humidified warm air is dehumidified and enters the circulation air receiving chamber 59, passes through the filter 64, and returns to the drying fan 55. The laundry in the inner tank 44 can be dried by circulating warm air in the circulation path.

As described above, in the present embodiment, the control unit operates the water supply valve having a small flow rate, and supplies the water supply to the bottomed cylinder of the water supply diffusion member formed in the drain conduit via the washing hose connected to the water supply valve. By diffusing the tube portion, the pressure of the water supply is increased, and the water is strongly discharged by the light-transmitting portion (light-emitting portion, light-receiving portion) which is formed in one of the diffusion tube portions and faces the cleaning hole toward the turbidity detection of the washing liquid. It can be directly washed and also inside the thinner part of the light penetrating part.

Thereby, there is no possibility of the residue of the lotion or the adhesion of the lotion, and the degree of penetration of the infrared rays is changed after the change of the year, the detection function can be prevented from being lowered, and the actual control of the washing of the laundry can be continued.

In particular, since the cleaning holes are arranged downward in a slightly eight-shaped shape, and the cross-sectional area is formed to be smaller than the cross-sectional area of the cylindrical portion of the diffusion tube portion, the pressure can be further increased, and the cleaning hole can be further increased. The water supply flow rate of the supply is increased, and the collision with the light-transmitting portion provided in the drainage duct is improved, and the cleaning effect can be further improved, so that the reliability of the detection function can be improved.

Further, the water supply of the water supply diffusion member to the diffusion pipe portion is performed at the time of the final rinsing process or before the end of the dehydration process, and after the operation is completed, there is no detergent residue or dirt even if the washing machine is left for a long time. It is dry and firmly adhered to the light penetrating portion, so that the degree of penetration of the infrared rays does not change, and the detection function can be prevented from being lowered to ensure the reliable control of the laundry washing.

Further, when the water supply to the diffusion pipe portion of the water supply diffusion member is performed in the final rinsing process and before the end of the dehydration process or before the dehydration process, it is carried out under the condition that the lotion component hardly remains. Washed, so there will be no residue of the lotion or dirt to dry and firmly adhere to the light penetrating part, the penetration of infrared rays will not change, and the detection function can be prevented from decreasing, and the washing of the clothes is continued. control.

As described above, the present invention has an outer groove that is elastically suspended in the casing, an inner groove that is rotatably supported in the outer groove, and a driving portion that drives the inner groove to rotate; the water supply valve The drainage duct is arranged to discharge water from the outer tank; the light penetrating portion is disposed in the drainage duct; and the turbidity detecting portion detects the turbidity of the washing liquid by the degree of penetration of the light. The washing hose is used to connect the water supply valve and the drain pipe; the washing pipe is connected to the washing hose and formed in the drain pipe; and the control unit controls the driving portion, the water supply valve, and the like. And a series of programs of washing, rinsing, and dehydrating are sequentially controlled, and the cleaning tube has a cylindrical diffusing tube portion having a turbidity detecting portion and forming a pair of cleaning holes, and the control portion is configured to The water supply valve operates and is washed by a pair of cleaning holes through the pair of cleaning holes to the light penetration portion of the turbidity detecting portion or/and its vicinity.

Thereby, since the water supply from the water supply valve can directly touch both sides of the light-emitting portion of the washing liquid turbidity detection and the light-transmitting portion of the light-receiving portion, the washing water is removed, so that no detergent residue or dirt adheres. Changing the degree of penetration over the years can also prevent the detection function from decreasing.

Further, in the above-described pair of cleaning holes of the present invention, the pair of cleaning holes are arranged slightly in a downward direction. Thereby, the water supply from the water supply valve can directly touch both sides of the light-emitting portion of the turbidity detection liquid of the washing liquid and the light-transmitting portion of the light-receiving portion, so that the washing agent residue or the dirt does not adhere to it. Changing the degree of penetration under the annual change can prevent the detection function from decreasing.

Further, in the present invention, the cross-sectional areas of the pair of cleaning holes are formed to be smaller than the cross-sectional area of the cylindrical portion of the diffusion tube portion. Thereby, the flow velocity of the water supply which collides with the light-transmitting portion provided in the drain duct becomes faster, and the washing effect can be improved and the change in the degree of penetration can be greatly reduced.

Further, the present invention supplies water to the washing hose immediately before the end of the final rinsing process or the dehydrating process, whereby the light penetrating portion can be directly washed at the time of final rinsing in which the concentration of the lotion is lowered. As a result, even after the operation is completed, even if the washing machine is left for a long period of time, no dirt remains firmly adhered to the light-transmitting portion, and the light-transmitting portion (light-emitting portion, light-receiving portion) can be effectively washed. Moreover, since the light penetrating portion can be directly washed before the end of the dehydration process, even if the washing machine is left for a long time after the end of the operation, no dirt remains firmly adhered to the light penetrating portion, which is effective The light penetration portion (light emitting portion, light receiving portion) is washed.

10. . . Drain valve

14. . . Turbidity detecting device

15,15’. . . Thinner part

16. . . Light department

17. . . Light receiving department

18. . . Tube department

19. . . hole

20. . . Drainage road

twenty one. . . Inner diameter

twenty two. . . Washing hose

twenty three. . . Top cover

26. . . Water supply unit

41. . . Casing

42. . . Suspension device

43. . . Outer slot

44. . . Inner slot

44a. . . Vent

45. . . Washing and dewatering shaft

46. . . Pulsator

47. . . Fluid balancer

48. . . Motor (driver)

49. . . clutch

50. . . Inclined surface

51. . . Stirring protrusion

52. . . Heat exchange conduit

53. . . Connecting catheter

54. . . Drainage path

55. . . Drying fan

56. . . Heater

57. . . Warm air circulation path

58. . . Upper telescopic hose

59. . . Circulating wind chamber

60. . . Warm air vent

61. . . Warm air supply

62,63. . . Temperature detection department

64. . . filter

65. . . Outer cover

66. . . Middle cover

67. . . Clothing input

68. . . Upper frame

69. . . s

70. . . Water supply valve

71. . . Support component

72. . . Washing hose

73. . . Water supply hose

74. . . Drain valve

75. . . Drainage duct

76. . . Drain hose

77. . . Washing tube

78. . . Electrode (conductivity detection unit)

79. . . Cooling blower

80. . . Control device

81. . . Back part (inner cover)

82. . . cover

83. . . Input setting section

84. . . Display department

85. . . Operation display unit

86. . . Load drive unit

87. . . Control department

88. . . Commercial power supply

89. . . switch

90. . . Water level detection department

91. . . Suction pump

92. . . Turbidity detection department

93. . . Water supply diffusion member

94. . . Diffusion tube

95. . . Cylinder

96. . . Tube hole

97. . . Wash hole

98a, 98b. . . Thinner part

99. . . Light department

100. . . Light receiving department

Fig. 1 is a longitudinal sectional view of a washing machine in an embodiment of the present invention.

Fig. 2 is a block circuit diagram of a washing machine in an embodiment of the present invention.

Fig. 3 is a cross-sectional view showing a drain conduit portion of the washing machine in the embodiment of the present invention.

Fig. 4 is a cross-sectional view showing a light transmitting portion of a drain duct portion of the washing machine in the embodiment of the present invention.

Fig. 5 is an external view of a water supply diffusion member provided in a drain duct portion of the washing machine in the embodiment of the present invention.

Fig. 6 is a view showing the order of washing to dehydration of the washing machine in the embodiment of the present invention.

Figure 7 is a longitudinal sectional view of a conventional washing machine.

Fig. 8 is a cross-sectional view showing a light penetrating portion of a drain valve of a conventional washing machine.

75. . . Drainage duct

92. . . Turbidity detection department

93. . . Water supply diffusion member

94. . . Diffusion tube

95. . . Cylinder

97. . . Wash hole

98a, 98b. . . Thinner part

99. . . Light department

100. . . Light receiving department

Claims (1)

A washing machine comprising: an outer groove elastically suspended in the casing; an inner groove rotatably supported in the outer groove; a driving mechanism for driving the inner groove to rotate; a water supply valve The drainage duct is arranged to discharge water from the outer tank and has a drain valve; the light penetrating portion is disposed on the drain duct; the turbidity detecting mechanism is caused by the penetration of light. Detecting the turbidity of the washing liquid; the washing hose is connected to the water supply valve and the drain conduit; the washing tube is connected to the washing hose and formed on the drain conduit; and the control mechanism controls the driving The operation of the water supply valve and the like, and sequentially controlling a series of procedures of washing, rinsing, and dehydrating, wherein the cleaning tube has a cylindrical diffusion tube portion that is provided in the drainage duct, and the diffusion tube portion is disposed a pair of cleaning holes disposed above the light-transmitting portion and arranged to be slightly figure-shaped and for discharging water toward the light-transmitting portion, the total area of the cleaning holes being larger than the foregoing The cross-sectional area of the loose tube portion is small, and the control mechanism washes the water supply valve by liberating the drain valve and operating the water supply valve before the end of the final flushing process or the dehydration process. The aforementioned light penetrating portion.