JP2018083054A - Washing machine - Google Patents

Abstract

An object of the present invention is to purify washing water by separating dirt substances by washing, and suppressing the reattachment of the separated dirt substances to the laundry to enhance the washing effect.
SOLUTION: A housing 2, an outer tub 1 elastically supported in the housing 2, a washing tub 4 rotatably provided in the outer tub 1, and a feed for circulating washing water in the outer tub 1. A water channel 19, a circulation pump 20 that circulates wash water in the water supply channel 19, and a centrifugal separation unit 21 that is provided in the water supply channel 19 and that centrifuges foreign substances contained in the wash water flowing through the water supply channel 19. The separation unit 21 includes a case 21a that constitutes an outer shell, and a hollow rotating cylinder 21b that rotates inside the case 21a. In the rotating cylinder 21b, washing water circulated by the circulation pump 20 is connected to the rotating cylinder 21b. This is a washing machine in which a rotary cylinder inlet 21e and a rotary cylinder outlet 21f for flowing through are formed, and the direction in which the washing water flows through the rotary cylinder 21b substantially coincides with the rotation axis direction of the rotary cylinder 21b. .
[Selection] Figure 2

Description

  The present invention relates to a washing machine for washing textile products such as clothes.

  In a conventional washing machine, it is considered that impurities such as dirt and lint separated from the laundry during washing are separated from the washing water to purify the washing water and prevent reattachment to the laundry ( For example, see Patent Documents 1 and 2).

  FIG. 11 is a schematic configuration diagram of a conventional washing machine shown in Patent Document 1. As shown in FIG. As shown in FIG. 11, a cyclone separator 54 is provided in a bath water supply path constituted by a first water supply pipe 51, a second water supply pipe 52, and a third water supply pipe 53. When the bath water supply pump 55 is driven at the time of washing, the water in the drum 56 is introduced into the cyclone separator 54 from the connection pipe 57, and impurities such as dirt and lint separated from the laundry by the cyclone separator 54. Is removed. The water from which impurities are removed is returned into the drum 56 through the second water supply pipe 52 and the first water supply pipe 51.

  Moreover, in patent document 2, in what is called a vertical washing machine which set the rotating shaft of the washing tub to the vertical direction, it is considered to separate the lint and the solid substance mixed in the washing water by the cyclone lint separator. .

JP 2005-152212 A JP 2001-70694 A

  However, the conventional configuration has a problem that it is difficult to reliably separate foreign substances from the washing water and to prevent the separated foreign substances from being mixed again into the circulating washing water. In addition, it has been difficult to keep the separated foreign matter inside the hydrocyclone and prevent re-mixing into the circulating washing water.

  Moreover, in the separation of foreign matter by a hydrocyclone, it is generally necessary to discard the foreign matter separated during operation. At that time, part of the liquid to be treated also flows out at the same time, and the washing water decreases during washing. Therefore, in order to maintain an appropriate amount of washing water supplied according to the amount of laundry at the start of operation, makeup water is required during washing, and the amount of water used during washing increases.

  The present invention solves the above-mentioned conventional problems, and separates and purifies dirt substances from washing water soiled by washing, and improves the cleaning effect by suppressing reattachment of the separated dirt substances to the laundry. An object of the present invention is to provide a washing machine that can be used.

  In order to solve the conventional problems, a washing machine of the present invention includes a housing, an outer tub elastically supported in the housing, a washing tub rotatably provided in the outer tub, and the washing A motor for rotationally driving the tub, a water supply passage for circulating the wash water in the outer tub, a circulation pump provided in the water supply passage, for circulating the wash water, and provided in the water supply passage, A centrifuge that centrifuges foreign matter contained in the flowing wash water, and the centrifuge includes a case that forms an outer shell, and a hollow rotating cylinder that is provided inside the case and is rotatable. The case has a case inlet and a case outlet connected to the water supply passage, and the rotating cylinder has a rotating cylinder inlet and a rotating cylinder outlet for allowing the washing water to flow through the rotating cylinder. Formed and the washing water flows through the rotating cylinder A rotation axis direction of the direction and the rotary cylinder that is obtained by a configuration to substantially match.

  With this configuration, the washing water flows through the rotating cylinder while turning around the rotation axis. And when washing water flows through the inside of a rotating cylinder, the substance whose specific gravity is heavier than the washing water contained in washing water goes to the inner peripheral surface of a rotating cylinder by centrifugal force. For this reason, even if the dirt contained in the washing water is lighter than water, such as sand, fiber scraps, hair, keratinous dirt, etc., which is heavier than water, and oils such as sebum What adheres to things having a higher specific gravity than water, such as lint, is separated from the washing water. Further, the washing water filling the inside of the rotating cylinder outside the through-flow and inside the inner peripheral surface of the rotating cylinder has the rotating cylinder inlet and the rotating cylinder outlet of the rotating cylinder occupied by the through-flow, and the inner peripheral surface of the rotating cylinder. Since the centrifugal force toward is always applied, it hardly mixes with the wash water in the flow-through portion. For this reason, the dirt substance once directed to the inner peripheral surface of the rotating cylinder due to the centrifugal force does not return to the flow-through due to the mixing of the washing water, and the washing water is purified by the centrifugal separator as it circulates in the water supply path. . Therefore, the washing machine provided with the centrifugal separator according to the present invention can improve the cleaning effect by preventing the separated dirt substance from reattaching to the laundry.

  The washing machine of the present invention can separate and purify the dirt substance from the washing water dirty by the washing by the centrifugal separator, and the washing effect is improved by preventing the separated dirt substance from reattaching to the laundry. be able to.

1 is a schematic configuration diagram of a washing machine according to Embodiment 1 of the present invention. The enlarged view of the centrifugation part of the washing machine in Embodiment 1 of this invention Relationship diagram between D1 and D2 of the centrifugal separator of the washing machine in Embodiment 1 of the present invention EE sectional view in FIG. Block configuration diagram of the washing machine in Embodiment 1 of the present invention Schematic configuration diagram of a washing machine in Embodiment 2 of the present invention The enlarged view of the centrifugal separation part of the washing machine in Embodiment 2 of this invention Schematic block diagram of a washing machine in Embodiment 3 of the present invention Block diagram of main parts of washing machine in Embodiment 3 of the present invention The enlarged view of the centrifugal separation part of the washing machine in Embodiment 3 of this invention Schematic configuration diagram of a conventional washing machine

  A washing machine according to a first aspect of the present invention is a housing, an outer tub elastically supported in the housing, a washing tub rotatably provided in the outer tub, a motor that rotationally drives the washing tub, A water supply passage for circulating the wash water in the outer tub, a circulation pump provided in the water supply passage for circulating the wash water, and a foreign matter included in the wash water provided in the water supply passage and flowing through the water supply passage A centrifuge unit, and the centrifuge unit includes a case constituting an outer shell, and a hollow rotating cylinder provided inside the case and rotatable. A case inlet and a case outlet connected to the water supply path are formed, and the rotating cylinder is formed with a rotating cylinder inlet and a rotating cylinder outlet for allowing the washing water to flow through the rotating cylinder, and the washing water is The direction of flow through the rotating cylinder and the rotation axis of the rotating cylinder Direction Metropolitan is one that is configured to substantially coincide.

  With this configuration, the washing water flows through the rotating cylinder while turning around the rotation axis. When the washing water flows while swirling in the rotating cylinder, a substance having a higher specific gravity than the washing water contained in the washing water moves toward the inner peripheral surface of the rotating cylinder by centrifugal force. For this reason, even if the dirt contained in the washing water is lighter than water, such as sand, fiber scraps, hair, keratinous dirt, etc., which is heavier than water, and oils such as sebum What adheres to things having a higher specific gravity than water, such as lint, is separated from the washing water.

  Further, the washing water filling the inside of the rotating cylinder outside the through-flow and inside the inner peripheral surface of the rotating cylinder has the rotating cylinder inlet and the rotating cylinder outlet of the rotating cylinder occupied by the through-flow, and the inner peripheral surface of the rotating cylinder. Since the centrifugal force directed toward is always applied, it hardly mixes with the wash water in the flow-through portion. For this reason, the dirt substance once directed to the inner peripheral surface of the rotating cylinder by the centrifugal force is prevented from returning to the flow-through due to the mixing of the washing water, and the washing water is purified by the centrifugal separator as it circulates in the water supply channel. The Therefore, the washing machine provided with the centrifugal separator according to the present invention can improve the cleaning effect by preventing the separated dirt substance from reattaching to the laundry.

  In a second aspect of the invention, in particular, in the first aspect of the invention, the centrifugal separation unit is configured to hold the centrifuged foreign matter on the inner peripheral surface of the rotating cylinder. With this configuration, it is possible to prevent foreign matters once separated from the washing water by centrifugal force from returning to the washing water flowing through the rotating cylinder.

  According to a third aspect of the invention, in particular, in the first or second aspect of the invention, the diameter of the rotary cylinder around the rotation axis is larger than the maximum diameters of the rotary cylinder inlet and the rotary cylinder outlet of the rotary cylinder. It has been done. With this configuration, the centrifugal force increases from the rotating shaft of the rotating cylinder toward the outer peripheral surface. Therefore, as the dirt substance approaches the inner peripheral surface by the centrifugal force from the washing water flowing through the rotating cylinder, the dirt substance is held on the inner peripheral face with a stronger centrifugal force. As a result, the centrifugal separation unit can prevent problems such as the separated dirt substance returning to the washing water flowing through the rotating cylinder and the dirt again adhering to the laundry.

  In a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the centrifugal separator is configured such that the washing water flows from the bottom upward. With this configuration, even when bubbles generated by the detergent in the washing water or bubbles generated by air from the circulation pump enter the rotating cylinder, they are easily discharged from the rotating cylinder outlet to the outside of the rotating cylinder. This prevents imbalance between the water and bubble distribution in the rotating cylinder caused by bubbles that are lighter than water remaining in the rotating cylinder, and minimizes fluctuations in the torque required to rotate the rotating cylinder. . Further, fluctuations in the rotational speed of the rotating cylinder caused by torque fluctuations can also be prevented. In addition, since the rotational vibration due to unbalance can be prevented, the rotating cylinder can be made larger.

  A washing machine according to a fifth aspect of the present invention is a housing, an outer tub elastically supported in the housing, a washing tub rotatably provided in the outer tub, a motor that rotationally drives the washing tub, A water supply path for supplying water into the washing tub and the outer tub, and a centrifuge for centrifuging foreign matter contained in the water flowing in the water supply path, provided in the water supply path; The centrifuge has a case that forms an outer shell, and a hollow rotating cylinder that is provided inside the case and is rotatable, and the case is connected to the water supply path. An inlet and a case outlet are formed, and the rotating cylinder is formed with a rotating cylinder inlet and a rotating cylinder outlet for allowing the water to flow through the rotating cylinder, and the direction in which the water flows through the rotating cylinder and the water It is configured so that the rotation axis direction of the rotating cylinder is substantially coincident. It is intended.

  With this configuration, water supplied from the faucet flows through the rotating cylinder while turning around the rotation axis. When water flows through the rotating cylinder 21b while swirling, a substance having a heavier specific gravity than water is directed to the inner peripheral surface of the rotating cylinder 21b by centrifugal force. For this reason, among dirt contained in water, it is lighter than water, such as sand, fiber scraps, hair, keratinous dirt, etc., which has a higher specific gravity than water, and fats such as sebum. In addition, things adhering to things having a specific gravity heavier than water, such as lint, are separated and removed from the supplied water. Therefore, clean water can be supplied into the washing tub even in an area where water purification facilities are not particularly prepared, and the washing effect of the laundry can be enhanced.

  A washing machine according to a sixth aspect of the present invention includes a housing, an outer tub elastically supported in the housing and having a drain outlet at a bottom, a washing tub rotatably provided in the outer tub, and the washing tub. A motor that rotates, a drain that is connected to the drain and drains the wash water in the outer tub, and a centrifuge that is provided in the drain and separates foreign matter contained in the wash water flowing through the drain A separation part, and the centrifugal separation part includes a case constituting an outer shell, and a rotatable hollow cylinder provided inside the case, wherein the case is connected to the drainage channel. A case inlet and a case outlet are formed, and the rotating cylinder is formed with a rotating cylinder inlet and a rotating cylinder outlet for allowing the washing water to flow through the rotating cylinder, and the washing water passes through the rotating cylinder. The direction of flow and the direction of the axis of rotation of the rotating cylinder are almost the same. Those that are configured.

  With this configuration, the washing water flowing through the drainage channel flows through the rotating cylinder while turning around the rotation axis. And when washing water flows through the inside of a rotation cylinder, the substance whose specific gravity is heavier than water heads for the internal peripheral surface of a rotation cylinder by centrifugal force. For this reason, among dirt contained in washing water, sand, fiber scraps, hair, keratinous dirt, etc., which are heavier than water, and lighter than water, such as fats represented by sebum However, the thing adhering to the thing whose specific gravity is heavier than water, such as lint, can be separated and removed from the drained water.

  In a seventh aspect of the invention, in particular, in the sixth aspect of the invention, a water tank connected to the drainage channel downstream of the centrifugal separator is provided, and the washing water in the water tank is reused in the next washing. It is comprised so that it may do.

  Thereby, since the washing water from which the used dirt component has been removed can be used in the next washing, the amount of water used for washing can be suppressed and water can be saved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a schematic configuration diagram of a washing machine according to Embodiment 1 of the present invention. As shown in FIG. 1, the outer tub 1 configured in a bottomed cylindrical shape is elastically supported by a plurality of suspension mechanisms 3 inside a housing 2 that forms an outer frame of the washing machine. A washing tub 4 configured in a bottomed cylindrical shape is provided in the outer tub 1. The outer tub 1 and the washing tub 4 have an opening 6 on the front side (left side in FIG. 1) through which a user puts in and out laundry 5 such as clothes.

  The washing tub 4 is provided so as to be rotatable about the rotation shaft 7. A plurality of (for example, three) baffles 8 projecting inward are provided on the peripheral wall surface of the washing tub 4. Further, a large number of small holes 9 are provided on the peripheral wall surface, and the inside and outside of the washing tub 4 communicate with each other through the small holes 9 in the outer tub 1. The outer tub 1, the washing tub 4, and the rotating shaft 7 are provided so as to be inclined upward by an angle θ (for example, 20 °) with respect to the horizontal.

  The washing tub 4 is configured to be rotatable forward and backward by a motor 10 provided at the rear portion of the outer tub 1. The motor 10 is, for example, a brushless DC motor, and is configured such that the rotation speed can be freely changed by inverter control of a controller 22 described later.

  The opening 1 a of the outer tub 1 and the opening 2 a of the housing 2 are formed to face the opening 6 of the washing tub 4. The opening 1a of the outer tub 1 and the opening 2a of the housing 2 are connected to each other by securing an airtight structure by an elastic bellows-like packing 12. A door 11 that opens and closes the opening 2 a is provided on the front surface of the housing 2.

  A water supply port 13 for supplying washing water is provided on the upper rear surface of the housing 2. The water supply port 13 is connected to a tap faucet 13a. The water supply port 13 is connected to one end of the water supply path 13b. The other end of the water supply path 13b is connected to the detergent case 15. A water supply valve 14 is provided in the water supply path 13b. The water supply valve 14 is driven to open and close by the controller 22 to supply and stop water. As indicated by an arrow A, the detergent case 15 is configured such that the detergent charging portion 15a can be pulled out from the detergent case 15 to the near side. Thereby, the user can easily put the detergent into the detergent case 15.

  As shown by the arrow B, the wash water supplied from the water supply port 13 flows into the detergent case 15 via the water supply path 13b. The washing water flows into the outer tub 1 while further dissolving the detergent put in the detergent case 15.

  A controller 22 is provided in the lower part of the housing 2.

  A drain port 16 for discharging washing water is provided at the bottom of the outer tub 1. A drainage channel 17 is connected to the drainage port 16. A drain valve 18 is provided in the drain channel 17. The drain valve 18 is opened / closed by the controller 22, and stores or drains washing water in the outer tub 1.

  One end of the water supply channel 19 is connected to the drainage channel 17, and the other end is connected to the lower front portion of the outer tub 1 to form a circulation path. The water supply path 19 is provided with a circulation pump 20 and a centrifugal separator 21 that circulate the washing water of the outer tub 1. The centrifugal separator 21 is provided on the downstream side of the circulation pump 20.

  The washing water in the outer tub 1 is circulated as shown by an arrow C from the drainage channel 17 through the water supply channel 19 by the circulation pump 20 and passes through the centrifugal separator 21. When the washing water passes through the centrifugal separator 21, foreign matters contained in the washing water are separated. The foreign matter includes dirt and yarn waste released from the laundry 5, and a water softener contained in the detergent dissolved in the washing water.

  FIG. 2 is an enlarged view of the centrifugal separator of the washing machine in the present embodiment. FIG. 3 is a relationship diagram between D1 and D2 of the centrifugal separator of the washing machine in the present embodiment. 4 is a cross-sectional view taken along line EE in FIG.

  The centrifugal separator 21 includes a case 21a, a hollow rotary cylinder 21b, and a rotary cylinder motor 21c that is a drive unit that rotates the rotary cylinder 21b.

  The case 21a constitutes the outline of the centrifugal separator. A case inlet 21g connected to the water supply passage 19 is formed on the lower peripheral surface of the case 21a. A case outlet 21h connected to the water supply passage 19 is formed on the upper surface of the case 21a in FIG. Washing water circulated through the water supply channel 19 by the circulation pump 20 flows into the case from the case inlet 21g and flows out from the case outlet 21h to the water supply channel 19.

  A hollow cylindrical rotating cylinder 21b is provided inside the case 21a. The rotating cylinder 21b is configured to be rotatable. In FIG. 2, a rotary cylinder inlet 21e through which washing water circulated by the circulation pump 20 flows into the rotary cylinder 21b is formed on the lower end surface of the rotary cylinder 21b. The rotary cylinder inlet 21e has a plurality of slit-like holes (for example, four) formed on the outer side of the rotary shaft of the rotary cylinder 21b. A rotary cylinder outlet 21f through which the washing water flows out of the rotary cylinder 21b is formed near the rotation axis of the upper end surface of the rotary cylinder 21b. The rotary cylinder outlet 21 f of the rotary cylinder 21 b is provided in accordance with the opening position of the water supply passage 19. The opening areas of the water supply passage 19, the rotary cylinder inlet 21e, and the rotary cylinder outlet 21f are formed to be substantially equal.

  In the present embodiment, the rotary cylinder inlet 21e is provided below the rotary cylinder outlet 21f, and the washing water passing through the centrifugal separator 21 flows from the bottom to the top as indicated by the arrow C in FIG.

  The rotary cylinder motor 21c is provided on the outer bottom of the case 21a. The rotary cylinder motor 21c and the rotary cylinder 21b are connected by a shaft 21i. The controller 22 rotates the rotating cylinder 21b as the washing water circulates through the water supply passage 19 by the circulation pump 20. The rotation speed of the rotating cylinder 21b is, for example, 2000 rpm to 4000 rpm.

  In FIG. 3, the diameter D1 around the rotation axis of the rotary cylinder 21b is configured to be larger than the maximum diameter D2 of the rotary cylinder inlet 21e and the rotary cylinder outlet 21f. By setting it as such a structure, the centrifugal force which acts on the washing water of the rotating cylinder 21b to rotate becomes so large that it goes to the outer peripheral surface 21d from a rotating shaft. The gap between the outer surface of the rotating cylinder 21b and the inner surface of the case 21a is configured to be as narrow as possible so that the circulation of the washing water is reduced as long as the rotation of the rotating cylinder 21b is not hindered.

  FIG. 5 is a block diagram of the washing machine in the present embodiment.

  The controller 22 includes an output of the cloth amount detection unit 23 that detects the amount of the laundry 5 put into the washing tub 4 and an output of the water amount detection unit 24 that detects the amount of the washing water supplied into the outer tub 1. And the output of the rotation detection part 25 etc. which detect the rotation drive of the washing tub 4 is input. The controller 22 controls the driving of the motor 10, the water supply valve 14, the drain valve 18, the circulation pump 20, a rotary cylinder motor 21 c described later, and the like based on the washing course set by the user through the operation display unit 26. Execute. The washing operation includes steps such as washing, rinsing, and dehydration. Further, the operation setting set by the user is displayed on the operation display unit 26.

  About the washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  In the washing operation, the washing process is a process in which the washing water in which the detergent is dissolved is supplied into the outer tub 1 and the dirt of the laundry 5 is removed while tapping and washing by the rotation of the washing tub 4. Following the washing step, a rinsing step is performed. For example, intermediate dehydration 1, rinsing 1, intermediate dehydration 2, and rinsing 2 are performed. And finally, a dehydration process is performed.

  First, the user opens the door 11 provided on the front surface of the housing 2 and puts the laundry 5 into the washing tub 4 from the opening 6. Next, a power switch (not shown) of the operation display unit 26 provided at the upper front of the housing 2 is turned on, and a start switch (not shown) is operated to start a washing operation.

  When the washing operation starts, the controller 22 first detects the amount of the laundry 5 put in the washing tub 4 by the cloth amount detection unit 23. The amount of the laundry 5 is detected from the amount of torque applied to the motor 10 when the washing tub 4 is rotated at a low speed, the current value of the motor 10, or the like.

  The controller 22 sets the time for each step of washing, rinsing and dehydration and the amount of washing water according to the detected amount of the laundry 5. In addition, a detergent amount set in advance according to the amount of the laundry 5 is displayed on the operation display unit 26. The user pulls out the detergent insertion part 15 a from the detergent case 15, puts the detergent in accordance with the amount of detergent displayed on the operation display part 26, and then moves the detergent insertion part 15 a into the detergent case 15.

  The controller 22 opens the water supply valve 14 in anticipation of the completion of the introduction of the detergent. When the water supply valve 14 is opened, the washing water flows into the detergent case 15 from the water supply port 13 and is supplied to the outer tub 1 while dissolving the supplied detergent as indicated by an arrow B. The washing water collected at the bottom in the outer tub 1 flows into the washing tub 4 through the small holes 9. Washing water collected in the outer tub 1 is detected by the water amount detection unit 24. The controller 22 closes the water supply valve 14 when a predetermined amount of washing water set in advance according to the amount of the laundry 5 is supplied.

  When the water supply is completed, the controller 22 drives the motor 10 to rotate the washing tub 4, and the laundry 5 in the washing tub 4 is lifted in the rotation direction by the baffle 8 and dropped from above. Thereby, the laundry 5 in the washing tub 4 is struck against the laundry 5 accumulated on the bottom surface of the washing tub 4 or the bottom of the washing tub 4. In this way, the washing is performed by the mechanical force together with the chemical force of the detergent. The rotation speed of the washing tub 4 where the laundry 5 is beaten and washed is 45 rpm, for example, and is reversed every predetermined time and driven forward and backward.

  The controller 22 drives the circulation pump 20 at the start of the washing process to circulate the washing water in the outer tub 1 in the water supply channel 19. In addition, the controller 22 drives the rotary cylinder motor 21c to rotate the rotary cylinder 21b. Thereby, while washing water in outer tub 1 is circulated during a washing process, a foreign substance with larger specific gravity than water contained in washing water can be separated.

  When the controller 22 performs the washing process for a predetermined time, the controller 22 stops the operation of the circulating pump 20 and then stops the operation of the rotary cylinder motor 21c. after that. The controller 22 opens the drain valve 18 to drain the washing water in the outer tub 1 out of the machine. After the drainage is completed, the rinsing step is performed, and the intermediate dehydration 1 is followed by the rinse 1. Also in the rinsing step, as in the washing step, a predetermined amount of washing water is supplied into the outer tub 1, and the laundry tub 4 is rotated to rinse the laundry 5.

  In the final dehydration step, after the drain valve 18 is opened and the washing water in the outer tub 1 is discharged outside the machine, the washing tub 4 containing the laundry 5 is rotated at a high speed by the motor 10 to perform washing. Object 5 is dehydrated. When the dehydration process is completed, the controller 22 ends the washing operation.

  Next, the effect | action in which the washing water is purified in the centrifuge part 21 is demonstrated.

  In the washing process, the washing water contains various foreign substances such as dirt substances. For example, the soiling substance has a higher specific gravity than water, such as sand, fiber scraps, hair, keratinous soils, etc., and even if it is lighter than water, such as fats represented by sebum, Some of them adhere to things that have a higher specific gravity than water.

  In the washing process, the controller 22 drives the circulation pump 20. When the circulation pump 20 is driven, the washing water containing the dirt substance in the outer tub 1 passes through the water supply channel 19 and reaches the centrifugal separator 21.

  The washing water that has reached the centrifugal separator 21 flows into the rotating cylinder 21b from the rotating cylinder inlet 21e and flows out of the rotating cylinder outlet 21f. At this time, since the controller 22 drives the rotary cylinder motor 21c to rotate the rotary cylinder 21b, the washing water flows through the rotary cylinder 21b while turning. Since the opening area of the rotary cylinder inlet 21e is smaller than that of the rotary cylinder 21b, when the wash water that flows through the rotary cylinder inlet 21e flows into the rotary cylinder 21b from the rotary cylinder inlet 21e, the flow rate of the wash water is reduced. In addition, since the washing water in the rotating cylinder 21b is turned by the rotation of the rotating cylinder 21b, the foreign matter having a high specific gravity contained in the washing water is directed to the inner peripheral surface 21d of the rotating cylinder 21b by centrifugal force. In this way, the washing water that has passed through the centrifugal separator 21 is in a state where foreign substances such as dirt substances are separated.

  Further, in the rotating cylinder 21b of the centrifugal separator 21, the washing water passes from the bottom to the top while turning. At this time, bubbles generated by the detergent in the washing water or bubbles generated by air from the circulation pump 20 may enter the rotary cylinder 21b. Even in such a case, first, bubbles that are lighter than water gather at the center of the rotating cylinder 21b by the swirling flow, and further, the action of floating upward and the flow of washing water from the bottom to the top are combined, It is easily discharged from the rotary cylinder outlet 21f to the outside of the rotary cylinder 21b. This prevents imbalance between the water in the rotating cylinder 21b and the bubble distribution caused by bubbles that are lighter than water remaining in the rotating cylinder 21b, and minimizes fluctuations in torque necessary to rotate the rotating cylinder 21b. be able to. Further, fluctuations in the rotational speed of the rotating cylinder 21b caused by torque fluctuations can be prevented. Since the rotational vibration of the rotating cylinder 21b due to unbalance can be prevented, the gap between the inner peripheral surface of the case 21a and the outer peripheral surface of the rotating cylinder 21b can be narrowed. Thereby, the empty space in the housing | casing 2 is limited and the rotary cylinder 21b can be comprised more largely, while the magnitude | size of the case 21a is also restrict | limited. Furthermore, the disturbance of the flow in the rotating cylinder 21b caused by the bubbles lighter than water remaining in the rotating cylinder 21b is eliminated. As a result, it is possible to prevent the foreign matter once separated and retained due to the disturbance of the washing water flow from returning to the washing water.

  Therefore, the centrifugal separator 21 can hold the foreign matter on the inner peripheral surface 21d of the rotating cylinder 21b during the centrifugal separation, and the foreign matter once separated from the washing water by the centrifugal force flows through the rotating cylinder 21b. It can prevent returning to water. And the trouble that a soiling substance recontains the laundry 5 etc. is prevented, and the washing power of a washing machine improves.

  In this way, the washing water from which foreign matters have been removed by the centrifugal separator 21 flows into the outer tub 1 through the water supply channel 19 and is further circulated between the centrifugal separator 21 and the outer tub 1 for purification. Progresses.

  The foreign matter collected on the inner peripheral surface 21d rides on the flow of the washing water flowing in the direction opposite to the circulation direction in the water supply passage 19 during drainage, and is discharged to the outside through the drain valve 18. Thereby, it is not necessary to set it as the structure which throws away some wash water to be purified during centrifugation.

  In addition, the separation of the foreign matters contained in the washing water can be executed not only in the washing process but also in the rinsing process. By separating the foreign matter that has come out of the laundry 5 from the laundry 5 in the rinsing process by the centrifugal separator 21, the rinsing effect can be enhanced. At the time of rinsing, it is possible to remove zeolite having a specific gravity heavier than water among the cleaning aids contained in the detergent, and the rinsing performance is improved.

  As described above, in the present embodiment, the housing 2, the outer tub 1 elastically supported in the housing 2, the washing tub 4 rotatably provided in the outer tub 1, and the washing tub 4 A motor 10 that rotates the water, a water supply passage 19 that circulates the wash water in the outer tub 1, a circulation pump 20 that circulates the wash water in the water supply passage 19, and a wash that is provided in the water supply passage 19 and flows through the water supply passage 19. A centrifuge 21 that centrifuges foreign matter contained in water, and the centrifuge 21 includes a case 21a that forms an outer shell, and a hollow rotating cylinder 21b that rotates inside the case 21a. The case 21a is connected to the water supply passage 19, and is formed with a case inlet 21g and a case outlet 21h for allowing the washing water to flow through the inside of the case 21a. The washing water circulated by the circulation pump 20 rotates in the rotating cylinder 21b. To flow through the tube 21b Rotary cylinder inlet 21e and the rotating cylinder outlet 21f are formed, washing water is what the direction of the rotation axis of the rotary cylinder 21b in the direction the rotary cylinder 21b flowing through the is configured to substantially coincide.

  With this configuration, the washing water flows through the rotating cylinder 21b while turning around the rotation axis. When the washing water flows through the rotating cylinder 21b, a substance having a higher specific gravity than the washing water contained in the washing water moves toward the inner peripheral surface 21d of the rotating cylinder 21b by centrifugal force. For this reason, among dirt contained in washing water, sand, fiber scraps, hair, keratinous dirt, etc., which are heavier than water, and lighter than water, such as fats represented by sebum However, the thing adhering to the thing whose specific gravity is heavier than water, such as lint, is isolate | separated from washing water, and the soiling substance peculiar to the laundry 5 contained in the washing water is removed.

  Further, the washing water filling the inside of the rotary cylinder 21b outside the through-flow and inside the inner peripheral surface 21d of the rotary cylinder 21b has the rotary cylinder inlet 21e and the rotary cylinder outlet 21f of the rotary cylinder 21b occupied by the through-flow, Since the centrifugal force directed to the inner peripheral surface 21d rather than the flow-through portion is always applied, the washing water in the flow-through portion is hardly mixed. For this reason, the dirt substance once directed to the inner peripheral surface 21d of the rotating cylinder 21b due to centrifugal force is prevented from returning to the flow-through due to the mixing of the washing water, and the washing water is centrifuged as it circulates in the water supply channel 19. Purified by the part 21. Therefore, the washing machine provided with the centrifugal separator 21 of the present invention can prevent the separated dirt substance from reattaching to the laundry 5 and enhance the cleaning effect.

  The centrifuge 21 is configured to hold the centrifuged foreign matter on the inner peripheral surface 21d of the rotary cylinder 21b during the centrifuge. With this configuration, it is possible to prevent foreign matters once separated from the washing water by centrifugal force from returning to the washing water flowing through the rotary cylinder 21b.

  In addition, the centrifuge 21 has a diameter around the rotation axis of the rotating cylinder 21b rotated by the rotating cylinder motor 21c of the driving unit larger than the maximum diameters of the rotating cylinder inlet 21e and the rotating cylinder outlet 21f of the rotating cylinder 21b. It is configured. With this configuration, the centrifugal force increases from the rotation axis of the rotating cylinder 21b toward the outer peripheral surface 21d. Therefore, as the dirt substance approaches the inner peripheral surface 21d by the centrifugal force from the washing water flowing through the rotating cylinder 21b, the dirt substance is held on the inner peripheral face 21d with a stronger centrifugal force. As a result, the centrifugal separator 21 can prevent a problem such that the separated dirt substance returns to the washing water flowing through the rotating cylinder 21b and the dirt is reattached to the laundry 5.

  The centrifugal separator 21 is configured such that the washing water flows from the bottom to the top in the interior. With this configuration, even when bubbles generated by the detergent in the washing water or bubbles generated by air from the circulation pump 20 enter the rotating cylinder 21b, they are easily discharged from the rotating cylinder outlet 21f to the outside of the rotating cylinder 21b. This prevents imbalance between the water in the rotating cylinder 21b and the bubble distribution caused by bubbles that are lighter than water remaining in the rotating cylinder 21b, and minimizes fluctuations in torque necessary to rotate the rotating cylinder 21b. be able to. Further, fluctuations in the rotational speed of the rotating cylinder 21b caused by torque fluctuations can be prevented. In addition, since the rotational vibration due to unbalance can be prevented, the rotating cylinder 21b can be configured larger.

  The controller 22 is configured to rotate the rotary cylinder 21b after stopping the operation of the circulation pump 20. As a result, the rotation speed of the rotating cylinder 21b decreases, and the foreign matter stuck to the inner peripheral surface of the rotating cylinder 21b floats in the rotating cylinder 21b, flows through the water supply channel 19 from the case outlet 21h, and is discharged to the washing tub 4 Can be prevented. In addition, the following operational effects are also achieved. For example, since the dirt substance washed out from the laundry 5 by washing and coming out into the washing water does not return once separated from the washing water, a detergent surfactant is used against the separated dirt substance. It can be prevented from working again and consumed, and the detergent can be used efficiently to enhance the cleaning power.

  In addition, since dirt substances can be prevented from re-adhering to the laundry 5, it becomes possible to circulate the washing water between the washing tub 4 and the centrifugal separator 21 during the washing process, and the washing water in one pass. Compared with the case where the water passes through the centrifugal separator 21, a higher washing water purification effect is obtained.

  Further, unlike a general liquid cyclone, it is not necessary to discard part of the water to be purified during centrifugation. For this reason, the washing water containing the detergent is not discarded during the washing operation, and it does not take time to replenish the washing water. As a result, the detergent concentration does not decrease, water saving is improved without increasing the amount of water used, and washing can be performed while purifying the washing water. Moreover, since the removal capability can be enhanced by centrifugal force without depending on the inflow speed as in the liquid cyclone, it is possible to configure without requiring a large circulation pump.

(Embodiment 2)
FIG. 6 is a schematic configuration diagram of a washing machine according to Embodiment 2 of the present invention, and FIG. 7 is an enlarged view of a centrifugal separator of the washing machine according to Embodiment 2 of the present invention.

  The characteristic of Embodiment 2 is providing the centrifuge part 121 in the water supply path 13b.

  Below, the structure of the centrifuge part 121 is demonstrated.

  In FIG. 7, a case inlet 121g is formed on the upper surface of the case 121a, and a case outlet 121h is formed on the lower peripheral surface of the case 121a. The case inlet 121g and the case outlet 121h are connected to the water supply path 13b.

  A rotating cylinder 121b that is rotatable in a cylindrical shape is provided in the case 121a. A rotary cylinder inlet 121e through which water flows into the rotary cylinder 121b is formed on the upper end surface of the rotary cylinder 121b in FIG. A rotary cylinder outlet 121f through which water flows out from the rotary cylinder 121b is formed on the lower end surface of the rotary cylinder 121b. The rotary cylinder outlet 121f has a plurality of slit holes (for example, four) formed on the outer side of the rotary shaft on the lower end surface of the rotary cylinder 121b.

  A rotary cylinder motor 121c is provided on the outer bottom of the case 121a. The rotary cylinder motor 121c and the rotary cylinder 121b are connected by a shaft 121i.

  A drain port 126 is formed on the lower end surface of the case 121a. The drain port 126 is connected to one end of the foreign matter discharge water channel 128. As shown in FIG. 6, the other end of the foreign matter discharge water channel 128 is connected to the drain channel 17. A drain valve 127 is provided near the drain port 126 of the foreign matter discharge path 128.

  Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  The operation and action in the above configuration will be described.

  The user puts the laundry 5 into the washing tub 4 and starts the operation of the washing machine. When the operation of the washing machine is started, the controller 22 opens the water supply valve 14 and supplies water to the washing tub 4 in a state where the rotary cylinder motor 21c is operated to rotate the rotary cylinder 21b. The tap water that has flowed from the faucet 13a through the water supply port 13 and the water supply path 13b flows into the centrifugal separator 121. The tap water that has flowed into the centrifugal separator 121 is subjected to centrifugal separation of foreign matters having a specific gravity greater than that of water in the centrifugal separator 121. Therefore, the water that has passed through the separation part 121 is in a state in which dirt substances such as iron rust and mud have been removed. As a result, clean water from which dirt substances have been removed is supplied into the washing tub 4, so that the cleaning effect can be improved. In addition, since the effect | action in which a dirt substance is centrifuged by the centrifuge part 121 is the same as that of Embodiment 1, it abbreviate | omits description.

  When the water supply is completed, the controller 22 closes the water supply valve 14 and causes the washing process to be executed. In addition, the controller 22 opens the drain valve 127. When the drain valve 127 is opened, the foreign matter floating in the centrifugal separator 121 flows as indicated by an arrow F in FIG. 6 and passes through the foreign matter discharge path 128 and the drain path 17 to the outside of the housing 2. Is discharged.

  As described above, in the present embodiment, the housing 2, the outer tub 1 elastically supported in the housing 2, the washing tub 4 rotatably provided in the outer tub 1, and the washing tub 4 Is provided in the housing 2 and is supplied to the washing tub 4 and the outer tub 1, and is provided in the water supply passage 13b and is contained in the water flowing through the water supply passage 13b. The centrifuge unit 121 includes a case 121a that forms an outer shell, and a hollow rotating cylinder 121b that rotates inside the case 121a. The case 121a includes: A case inlet 121g and a case outlet 121h are formed, which are connected to the water supply path 13b and allow water to flow through the inside of the case 21a. The rotating cylinder 121b includes a rotating cylinder inlet 121e and a water cylinder that flows through the rotating cylinder 121b. Rolling tube outlet 121f are formed, the water is what the rotation axis direction to the direction of flow through the interior of rotating cylinder 121b rotating cylinder 121b is configured to substantially coincide.

  With this configuration, the water supplied from the faucet 13a flows through the rotating cylinder 121b while turning around the rotation axis. When water flows through the rotating cylinder 121b, a substance having a heavier specific gravity than water moves toward the inner peripheral surface of the rotating cylinder 121b by centrifugal force. For this reason, among dirt contained in water, it is lighter than water, such as sand, fiber scraps, hair, keratinous dirt, etc., which has a higher specific gravity than water, and fats such as sebum. In addition, things adhering to things having a specific gravity heavier than water, such as lint, are separated and removed from the supplied water. Therefore, since the clean water can be supplied into the washing tub 4 even in an area where the water purification facilities are not particularly prepared, the washing effect of the laundry 5 can be enhanced.

(Embodiment 3)
FIG. 8 is a schematic configuration diagram of the washing machine according to the third embodiment of the present invention, FIG. 9 is a principal block diagram of the washing machine according to the third embodiment of the present invention, and FIG. 10 is the third embodiment of the present invention. It is an enlarged view of the centrifuge part in FIG.

  The feature of the third embodiment is that the centrifugal separator 221 is provided on the downstream side of the drainage valve 18 of the drainage channel 17, and the water storage tank 229 is provided on the back surface inside the housing 2.

  In FIG. 8, a centrifugal separator 221 is provided downstream of the drainage valve 17 in the drainage channel 17. A three-way valve 232 is provided on the downstream side of the centrifugal separator 221 in the drainage channel 17. One side of the three-way valve 232 is connected to a water storage path 17 a communicating with the water storage tank 229, and the other side of the three-way valve 232 is connected to a first drainage path 17 b that is drained to the outside of the housing 2. The three-way valve 232 is composed of an electromagnetic valve. In a state where the three-way valve 232 is not energized, the three-way valve 232 is in a state in which the path on the water reservoir 17a side is closed and the path on the first drainage channel 17b side is opened. When the three-way valve 232 is energized, the three-way valve 232 is in a state where the path on the first drainage channel 17b side is closed and the path on the water storage channel 17a side is opened.

  The water storage tank 229 and the outer tank 1 are communicated with each other through a water channel 230. The water channel 230 is provided with a water supply pump 231 that supplies water in the water storage tank 229 to the outer tank 1.

  A drain port (not shown) is formed at the inner bottom of the water storage tank 229. The drain port is connected to a second drain channel 17c communicating with the outside of the water storage tank 229. A drain valve 233 is provided in the second drain channel 17c.

  Hereinafter, the configuration of the centrifugal separator 221 of the present embodiment will be described.

The centrifugal separator 221 includes a case 221a, a hollow rotary cylinder 221b, and a rotary cylinder motor 221c that is a drive unit that rotates the rotary cylinder 221b.

  In FIG. 10, a case inlet 221g is formed on the upper peripheral surface of the case 221a, and a case outlet 221h is formed on the lower end surface of the case 221a. The case inlet 221g and the case outlet 221h are connected to the drainage channel 17.

  A rotatable hollow cylindrical rotating cylinder 221b is provided in the case 221a.

  A rotary cylinder inlet 221e through which washing water flows into the rotary cylinder 221b is formed on the upper end surface of the rotary cylinder 221b. The rotary cylinder inlet 221e is formed by providing a plurality (for example, four) of slit-like holes outside the rotation shaft on the upper surface of the rotary cylinder 221b. A rotary cylinder outlet 221f for allowing the washing water in the rotary cylinder 221b to flow out of the rotary cylinder 221b is formed on the lower end surface of the rotary cylinder 221b.

  A rotary cylinder motor 221c is provided on the upper surface of the case 221a. The rotary cylinder motor 221c is connected to the rotary cylinder 221b by a shaft 221i, and the rotary cylinder 221b rotates by driving the rotary cylinder motor 221c to rotate.

  Other configurations are the same as those of the first embodiment, and the same reference numerals are given to the same configurations, and the detailed description is applied to the first embodiment.

  The operation and action in the above configuration will be described.

  After the rinsing process, the controller 22 opens the drain valve 18 in a state where the rotary cylinder motor 21c of the centrifugal separator 221 is operated to rotate the rotary cylinder 21b. When the drain valve 18 is opened, the wash water in the outer tub 1 flows through the water supply channel 19 and the drain channel 17 in the direction of the arrow G1 and flows into the centrifugal separator 221. The washing water that has flowed into the centrifugal separator 221 separates foreign matter having a specific gravity higher than that of water by centrifugal separation. The washing water that has passed through the centrifugal separator 221 is in a relatively clean state from which foreign matters such as iron rust and mud have been removed. In addition, since the effect | action in which a dirt substance is centrifuged by the centrifugation part 221 is the same as that of Embodiment 1, it abbreviate | omits description.

  During drainage, the controller 22 energizes the three-way valve 232 until a predetermined time has elapsed. As described above, in the state where the three-way valve 232 is energized, the three-way valve 232 is opened on the side of the reservoir 17a, so that the relatively clean washing water that has passed through the centrifugal separator 221 is stored in the reservoir. 229 flows into the water storage tank 229.

  After a predetermined time has elapsed, the controller 22 stops energizing the three-way valve 232. In the state where the three-way valve 232 is not energized, the three-way valve 232 is opened on the first drainage channel 17b side, so that the washing water that has passed through the centrifugal separator 221 is drained outside the housing 2. .

  By the above control, the relatively clean laundry water that has been centrifuged can be stored in the water storage tank 229, and the dirt substance separated in the centrifugal separator 221 can be drained.

  The energization time for the three-way valve 232 is determined from the water level in the water storage tank 229, the water level of the outer tank 1, and the like. With the above configuration, a necessary amount of water can be stored in the water storage tank 229.

  When the next washing is started, the controller 22 drives the water supply pump 231. Thereby, the washing water stored in the water storage tank 229 can flow in the direction of the arrow G <b> 2 through the water channel 230 by water pressure and can be supplied into the outer tank 1. Thereby, since the amount of tap water supplied from the faucet 13a can be reduced, a water-saving effect can be obtained.

  When draining the water in the water storage tank, the controller 22 opens the drain valve 233. When the drain valve 233 is released, the water in the water reservoir flows through the second drain channel 17c and is drained.

  In addition, it is preferable to provide the water storage tank 229 with a configuration for sterilizing the stored washing water or suppressing the propagation of bacteria. As a configuration for sterilizing washing water, for example, an ozone generation device is provided, and a method of sterilizing by releasing ozone, a method of providing an adsorbent for adsorbing and removing sebum components from washing water, and irradiating with ultraviolet rays And a method of sterilizing by the method. By adopting such a configuration, even when water is stored in the water storage tank 229 for a long time, the propagation of bacteria can be suppressed.

  As described above, in the present embodiment, the housing 2, the outer tub 1 elastically supported in the housing 2 and having the drain 16 at the bottom, and the laundry provided rotatably in the outer tub 1. The tank 4, the motor 10 that rotationally drives the washing tub 4, the drainage passage 17 that is connected to the drain port 16 and drains the washing water in the outer tub 1, and the foreign matters contained in the washing water flowing through the drainage passage 17 are separated. The centrifuge unit 221 includes a case 221a that forms an outer shell, and a hollow rotary cylinder 221b that rotates inside the case 221a. The case 221a includes a drainage channel 17. And a case inlet 221g and a case outlet 221h for allowing the washing water to flow through the inside of the case are formed, and the rotating cylinder 221b has a rotating cylinder inlet 221e and a rotating cylinder for allowing the washing water to flow through the rotating cylinder 221b. Exit 221 There are formed, washing water is what the rotation axis direction to the direction of flow through the interior of rotating cylinder 221b rotating cylinder 221b is configured to substantially coincide.

  With this configuration, the wash water flowing through the drainage channel 17 flows through while turning around the rotation axis of the rotary cylinder 221b. And when washing water flows through the inside of the rotation cylinder 221b, the substance whose specific gravity is heavier than water heads for the internal peripheral surface of the rotation cylinder 221b by centrifugal force. For this reason, among dirt contained in washing water, sand, fiber scraps, hair, keratinous dirt, etc., which are heavier than water, and lighter than water, such as fats represented by sebum However, the thing adhering to the thing whose specific gravity is heavier than water, such as lint, can be separated and removed from the drained water.

  Further, a water storage tank 229 connected to the drainage channel 17 is provided, and the washing water in the water storage tank 229 is configured to be reused in the next washing. Thereby, since the used wash water after removing the dirt component can be used in the next wash, a water-saving effect can be obtained.

(Other embodiments)
As described above, Embodiments 1 to 3 have been described as examples of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can also be applied to embodiments that have been changed, replaced, added, omitted, and the like. Moreover, it is also possible to combine each component demonstrated in the said Embodiment 1-3 and it can also be set as new embodiment.

  Therefore, other embodiments will be exemplified below.

  In the first to third embodiments, one of the case inlet 21g and the case outlet 21h has been described as being configured on the side peripheral surface of the case 21a. However, the present invention is not limited to this configuration. The case inlet 21g may be formed on the lower end surface of the case 21a, and the case outlet 21h may be formed on the upper end surface of the case 21a. By adopting such a configuration, the inflow direction to the case 21a and the outflow direction from the case 21a substantially coincide with each other, so that the resistance of the water flow when flowing through the case 21a can be reduced, and the momentum of the water flow is maintained. Can do.

  In the first to third embodiments, the configuration in which the rotating cylinder 21b is rotated by the rotating cylinder motor 21c has been described, but the present invention is not limited to this. For example, the rotating cylinder 21b may be provided with a wing-shaped water receiving portion, and water that flows into the rotating cylinder 21b rotates the water receiving portion so that the rotating cylinder rotates. By setting it as such a structure, since the rotary cylinder motor 21c becomes unnecessary, a centrifuge part can be comprised at low cost.

  In the first to third embodiments, as an example of the rotating cylinder 21b, the opening areas of the water supply passage 19, the rotating cylinder inlet 21e, and the rotating cylinder outlet 21f have been described as being equivalent, but the present invention is limited to this. Absent. The rotating cylinder outlet 21f may have an opening area larger than that of the rotating cylinder inlet 21e, and the rotating cylinder inlet 21e may have an opening area larger than that of the rotating cylinder outlet 21f.

  In the first to third embodiments, a holding member that holds the foreign matter in the rotating cylinder 21b may be provided on the inner peripheral surface of the rotating cylinder 21b. The holding member is, for example, a mesh filter. By adopting such a configuration, even when the rotational speed of the rotating cylinder 21b is reduced and the foreign matter stuck to the inner peripheral surface of the rotating cylinder 21b is less affected by the centrifugal force, It can prevent that it floats in the inside of the rotation cylinder 21b, flows through the water supply path 19 from the case outlet 21h, and is discharged to the washing tub 4.

  In Embodiment 3, the configuration in which the effluent after the rinsing process is centrifuged by the centrifuge 221 has been described. However, the present invention is not limited to this, and the effluent after the washing process is centrifuged by the centrifuge 221. In addition, the water may be stored in the water storage tank 229. By setting it as such a structure, since the washing water containing many detergent components can be stored in the water storage tank 229, the washing | cleaning effect can be improved at the time of the next washing.

  In the third embodiment, as an example of the water storage tank 229, the configuration that is disposed on the back surface inside the housing 2 has been described. The water storage tank 229 may be provided at any position as long as the drained washing water is stored. For example, it may be provided below the outer tub 1 or may be provided outside the housing 2.

  In addition, you may comprise a washing machine combining the centrifuge part shown in Embodiment 1-3. For example, the centrifugal separator 21 may be provided in the water supply channel 19 and the centrifugal separator 221 may be provided in the drainage channel 17. By setting it as such a structure, a dirt substance can be removed from the washing water in washing and rinsing, and the washing | cleaning effect can be improved. Moreover, since the stain | pollution | contamination contained in the wash water after use can be removed, it can also be stored in the water storage tank 229, and can be reused by the next washing, and the water-saving effect is acquired.

  In Embodiments 1 to 3, the configuration of a drum type washing machine has been described as an example of a washing machine, but the present invention is not limited to this, and may be a vertical washing machine.

  Note that the above-described embodiments are for illustrating the technique in the present disclosure, and thus various modifications, replacements, additions, omissions, and the like can be made within the scope of the claims or an equivalent scope thereof.

  As described above, the washing machine according to the present invention can separate and purify foreign substances such as dirt substances from the washing water dirty by washing, and suppress the reattachment of the separated dirt substances to the laundry. Since the cleaning effect can be enhanced, it is useful as a washing machine.

DESCRIPTION OF SYMBOLS 1 Outer tub 2 Case 4 Washing tub 10 Motor 13b Water supply path 19 Water supply path 20 Circulation pump 21, 121, 221 Centrifugal separation part 21a Case 21b Rotating cylinder 21c Rotating cylinder motor 21d Inner peripheral surface 21e Rotating cylinder inlet 21f Rotating cylinder outlet 21g Case inlet 21h Case outlet 17 Drainage channel 229 Water storage tank

Claims (7)

A housing,
An outer tub elastically supported in the housing;
A washing tub rotatably provided in the outer tub;
A motor for rotationally driving the washing tub;
A water passage for circulating the washing water in the outer tub;
A circulation pump provided in the water supply channel for circulating the wash water;
A centrifuge for centrifuging foreign matter contained in the washing water that is provided in the water channel and flows through the water channel;
The centrifuge has a case constituting an outer shell, and a hollow rotating cylinder provided inside the case and rotatable.
The case is formed with a case inlet and a case outlet connected to the water supply channel,
The rotating cylinder is formed with a rotating cylinder inlet and a rotating cylinder outlet for allowing the washing water to flow through the rotating cylinder,
The washing machine in which the direction in which the washing water flows through the inside of the rotating cylinder substantially coincides with the rotation axis direction of the rotating cylinder. The washing machine according to claim 1, wherein the centrifugal separation unit is configured to hold the centrifuged foreign matter on an inner peripheral surface of the rotating cylinder. The washing machine according to claim 1 or 2, wherein a diameter of the rotating cylinder around the rotation axis is configured to be larger than maximum diameters of the rotating cylinder inlet and the rotating cylinder outlet of the rotating cylinder. The said centrifuge part is a washing machine of any one of Claims 1-3 comprised so that washing water might flow inside from the bottom toward the top. A housing,
An outer tub elastically supported in the housing;
A washing tub rotatably provided in the outer tub;
A motor for rotationally driving the washing tub;
A water supply path that is provided in the housing and supplies water into the washing tub and the outer tub;
A centrifuge that is provided in the water supply path and centrifuges foreign matter contained in the water flowing through the water supply path;
The centrifuge has a case constituting an outer shell, and a hollow rotating cylinder provided inside the case and rotatable.
The case is formed with a case inlet and a case outlet connected to the water supply path,
The rotating cylinder is formed with a rotating cylinder inlet and a rotating cylinder outlet for allowing the water to flow through the rotating cylinder,
A washing machine in which a direction in which the water flows through the inside of the rotating cylinder and a rotating shaft direction of the rotating cylinder substantially coincide. A housing,
An outer tank that is elastically supported in the housing and has a drain at the bottom;
A washing tub rotatably provided in the outer tub;
A motor for rotationally driving the washing tub;
A drainage channel connected to the drainage port for draining washing water in the outer tub;
A centrifuge that is provided in the drainage channel and separates foreign matter contained in the washing water flowing through the drainage channel,
The centrifuge has a case constituting an outer shell, and a hollow rotating cylinder provided inside the case and rotatable.
The case is formed with a case inlet and a case outlet connected to the drainage channel,
The rotating cylinder is formed with a rotating cylinder inlet and a rotating cylinder outlet for allowing the washing water to flow through the rotating cylinder,
The washing machine in which the direction in which the washing water flows through the inside of the rotating cylinder substantially coincides with the rotation axis direction of the rotating cylinder. The washing machine according to claim 6, further comprising a water storage tank connected to the drainage channel on the downstream side of the centrifugal separator, wherein the washing water in the water storage tank is reused in the next washing. .

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