WO2016058490A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2016058490A1
WO2016058490A1 PCT/CN2015/091321 CN2015091321W WO2016058490A1 WO 2016058490 A1 WO2016058490 A1 WO 2016058490A1 CN 2015091321 W CN2015091321 W CN 2015091321W WO 2016058490 A1 WO2016058490 A1 WO 2016058490A1
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WO
WIPO (PCT)
Prior art keywords
inlet
groove
washing
washing tub
bottom wall
Prior art date
Application number
PCT/CN2015/091321
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English (en)
French (fr)
Inventor
西浦直人
Original Assignee
海尔亚洲株式会社
青岛海尔洗衣机有限公司
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Application filed by 海尔亚洲株式会社, 青岛海尔洗衣机有限公司 filed Critical 海尔亚洲株式会社
Publication of WO2016058490A1 publication Critical patent/WO2016058490A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for

Definitions

  • the invention relates to a washing machine.
  • the pulsator is rotatably provided at the bottom of the dewatering tank which is rotatably provided in the outer tank.
  • An air inlet port is provided at the bottom of the outer tank, and the inlet port is connected to the air pump through a vent hose.
  • the air pump is driven, and air is sent to the outer tank through the vent hose to generate air bubbles from the inlet.
  • the generated bubbles are accumulated below the pulsator through the suction port provided in the bottom wall of the dewatering tank, are pulverized by the back blades of the pulsator, are finely floated, and then floated to come into contact with the laundry.
  • the stain component can be peeled off from the laundry by the shock wave generated when the bubble comes into contact with the laundry. Further, the foaming effect of the detergent is improved by the air bubbles, and a large amount of detergent foam is generated, and the detergent component and the water can be permeated into the laundry by the detergent foam with a small amount of water, and the laundry can be uniformly washed. Moreover, since the laundry can be wrapped and washed by the detergent foam, the damage of the laundry can be reduced. As described above, by washing the laundry with the air bubbles, it is possible to reduce the damage of the laundry and to improve the water saving and the cleaning power.
  • Patent Document 1 Japanese Patent Laid-Open Publication No. 2000-51562
  • the air introduction port is provided in the center portion of the bottom portion of the outer tub, and the suction port for feeding the air bubbles generated from the introduction port into the dewatering tank is provided in the central portion of the bottom wall of the dewatering tank.
  • Such a structure is restricted by a power switching mechanism and a bearing from a central portion provided at the bottom of the outer tank, a rotating shaft of the dewatering tank located at the center of the bottom wall of the dewatering tank, and a rotating shaft of the pulsator. Increase the size of the inlet and the inlet. As a result, it is difficult to efficiently feed the bubbles into the dewatering tank.
  • the configuration of the vent hose connected to the inlet is also restricted.
  • the present invention has been made in the context of the related art, and it is an object of the present invention to provide a The air bubbles of the laundry contained in the washing tub are efficiently fed into the washing machine in the washing tub.
  • the present invention relates to a washing machine comprising: an outer tank having a first bottom wall formed with an introduction port for introducing air, capable of storing water; and a washing tub housed in the outer tank for accommodating laundry and capable of rotating a second bottom wall facing the first bottom wall from above and a through hole for allowing water to flow between the washing tank and the outer tank; and a groove formed in the second bottom wall
  • the lower surface portion of the lower surface is formed in a ring shape having a radius from a rotation center of the washing tub to the inlet port and centered on a rotation center of the washing tub, and is opposed to the inlet port from above;
  • the air hole is formed inside the groove and penetrates the second bottom wall, and the air bubbles received by the groove from the introduction port are sent into the washing tub.
  • the present invention is characterized in that the vent hole is formed in a groove bottom of the groove, and the groove bottom is an inclined surface that is inclined such that the groove is deeper toward the vent hole.
  • the present invention is characterized by comprising: a pumping path having an inlet located at a bottom of the washing tub, an outlet located at a position higher than the inlet, and a flow path extending upward from the inlet to the outlet, Extracting water accumulated in the washing tub from the inlet and spraying through the flow path from the outlet into the washing tub; the blade, by rotating around a rotation center of the washing tub, will Bubbles from the vent are fed into the inlet, the vent being located on a line connecting the center of rotation of the sink and the inlet.
  • the present invention is characterized by comprising: a pumping path having an inlet located at a bottom of the washing tub, an outlet located at a position higher than the inlet, and a flow path extending upward from the inlet to the outlet, Water accumulated in the washing tub is drawn from the inlet and sprayed from the outlet into the washing tub through the flow path, the inlet being located directly above the vent hole.
  • the present invention is characterized in that, in the pumping path, a region between the inlet and the outlet is provided for ejecting bubbles from the vent hole to the inlet into the washing tub The spout.
  • the present invention is characterized in that an anti-dissipation structure for preventing air bubbles coming out from the introduction port from being dissipated to a gap between the outer groove and the washing tub above the second bottom wall is provided.
  • the outer tank is filled with water from the first bottom wall side, and the washing tub rotatably accommodated in the outer tank accumulates water flowing between the washing tub and the outer tub through the through hole from the second bottom wall side.
  • the air introduced into the inlet port formed in the first bottom wall becomes air bubbles in the water accumulated in the outer tank and floats from the inlet.
  • the groove formed on the lower surface portion facing the first bottom wall from above receives the air bubbles floating from the introduction port.
  • a vent hole formed inside the groove feeds the bubble received through the groove into the washing tub. The bubbles that are fed into the washing tank are used to wash the laundry in the washing tank.
  • the groove is formed in a ring shape centered on the rotation center of the washing tub.
  • the annular groove is disposed outside the rotation center of the second bottom wall away from the washing tub. Therefore, the introduction port opposed to the groove from the lower side is disposed outside the portion of the first bottom wall that is away from the center of rotation of the washing tub.
  • the radius of the annular groove is the distance from the center of rotation of the washing tub to the inlet. Therefore, at least a part of the groove always faces the introduction port from above even during the rotation of the washing tub, so that the groove can receive the air bubbles floating from the introduction port uninterruptedly and be sent into the washing tub from the vent hole.
  • the bubbles for washing the laundry can be efficiently fed into the washing tub.
  • the vent hole is formed in the groove bottom of the groove, and the groove bottom is an inclined surface which is inclined so as to make the groove deeper toward the vent hole. Therefore, the air bubbles received by the grooves are smoothly introduced into the vent holes through the inclined groove bottoms, so that the air bubbles can be efficiently fed into the washing tub.
  • the water pumping path extracts the water stored in the washing tub from the inlet and flows through the flow path, and ejects from the outlet into the washing tub, thereby circulating the water between the washing tub and the pumping path. It is possible to wash with a small amount of water. Further, the vanes rotating around the center of rotation of the washing tub are fed into the inlet of the pumping passage from the air bubbles, so that the air bubbles can be efficiently adhered to the circulating water and sent to the washing tub.
  • the vent hole is located on a line segment connecting the center of rotation of the washing tub and the inlet, so that the blade can smoothly feed the air bubbles coming out of the vent hole into the inlet and adhere to the circulating water.
  • the water pumping path extracts the water stored in the washing tub from the inlet, passes through the flow path, and ejects from the outlet into the washing tub, thereby circulating the water between the washing tub and the pumping path, thereby making it possible to utilize Wash with a small amount of water. Further, since the inlet of the pumping path is located directly above the vent hole, the air bubbles floating from the vent hole can be quickly attached to the circulating water and can be more efficiently fed into the washing tub.
  • the dedicated discharge port for discharging the air bubbles into the washing tub is provided in the pumping path, the air bubbles can be efficiently fed into the washing tub from the discharge port.
  • the air bubbles are dissipated to the gap between the outer groove and the washing tank above the second bottom wall The situation is prevented by the anti-scatter structure. Thereby, it is possible to prevent the smooth rotation of the washing tub from being hindered by the bubble entering the gap.
  • Fig. 1 is a longitudinal sectional view showing the internal structure of a washing machine in accordance with an embodiment of the present invention.
  • Fig. 2 is a bottom view of the bottom wall of the washing tub contained in the washing machine.
  • Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2;
  • Fig. 4 is a side view showing the bottom wall of the washing tub of the main portion in a cross-sectional view.
  • Fig. 5 is a plan view of the outer tub of the washing machine and the washing tub.
  • Fig. 6 is a longitudinal sectional view of the washing machine when it is cut at a position different from Fig. 1;
  • Figure 7 is a plan view of the bottom wall of the washing tub.
  • Fig. 8 is an enlarged view of a main portion surrounded by a two-dot chain line in Fig. 1.
  • Fig. 9 is an enlarged view of a main portion surrounded by a two-dot chain line in Fig. 6.
  • Fig. 10 is an enlarged view of a main portion surrounded by a broken line in Fig. 8.
  • Fig. 11 is a longitudinal sectional view showing the internal structure of a washing machine according to a modification of the present invention.
  • Fig. 1 is a longitudinal sectional view showing an internal structure of a washing machine 1 according to an embodiment of the present invention.
  • the washing machine 1 is not only a washing machine that performs a washing operation, a rinsing operation, and a dehydrating operation of the laundry S, but also a washing and drying machine that performs a drying operation.
  • the washing machine 1 includes a casing 2 formed in a box shape, an outer tank 3 disposed in the casing 2, a washing tub 4, a motor 5, a pulsator 6, and a pump 7.
  • the outer tub 3 is made of, for example, a resin and is formed into a bottomed cylindrical shape.
  • the outer tub 3 has a substantially cylindrical circumferential wall 3B having an opening 3A at its upper end and a bottom wall 3C as a first bottom wall formed in a disk shape by a hollow portion that blocks the circumferential wall 3B from the lower side X2.
  • the opening 3A is opened and closed by a cover 10 that is coupled to the circumferential wall 3B.
  • Water such as tap water, bath water, and a detergent-laden liquid can be accumulated in the outer tank 3 from the bottom wall 3C side.
  • an inlet port 9 penetrating the bottom wall 3C in the vertical direction X is formed on the outer peripheral portion adjacent to the circumferential wall 3B.
  • the inlet 9 may be provided only one, or may be arranged in the circumferential direction of the outer groove 3. Set multiple in the upper mode.
  • the introduction port 9 may be formed directly on the bottom wall 3C, or as shown in Fig. 1, the resin tube 12 may be attached to the bottom wall 3C, and the empty portion may serve as the introduction port 9 to expose the upper surface of the bottom wall 3C.
  • the washing tub 4 is formed in a bottomed cylindrical shape which is one turn smaller than the outer tub 3, and accommodates the laundry S.
  • the washing tub 4 has a substantially cylindrical circumferential wall 4B having an inlet and outlet 4A at its upper end, and a bottom wall 4C as a second bottom wall formed in a disk shape by a hollow portion that blocks the circumferential wall 4B from the lower side X2.
  • the circumferential wall 4B is made of metal
  • the center portion is made of metal
  • the outer peripheral portion is made of resin.
  • the outer peripheral edge portion of the bottom wall 4C is formed in a tubular shape that is curved upward X1, and may be regarded as a lower end portion of the circumferential wall 4B.
  • the bottom end 4C and the lower end portion of the circumferential wall 4B connected to the bottom wall 4C constitute the bottom portion 4D of the washing tub 4.
  • the washing tub 4 is housed in the outer tub 3 in a coaxial state.
  • the washing tub 4 in a state of being housed in the outer tub 3 is rotatable about a central axis 8 extending in the vertical direction X as its axis.
  • Such a washing machine 1 is a vertical washing machine in which the washing tub 4 is longitudinally disposed.
  • the central axis 8 of the washing tub 4 is also the central axis of the outer tub 3, and the rotation direction of the washing tub 4 with the central axis 8 as the center of rotation coincides with the circumferential direction Y of each of the outer tub 3 and the washing tub 4.
  • the radial direction with respect to the central axis 8 is referred to as the radial direction Z
  • the side toward the central axis 8 is referred to as the radially inner side Z1
  • the side away from the central axis 8 is referred to as the radially outer side Z2.
  • Both the circumferential direction Y and the radial direction Z are directions along the horizontal direction H.
  • the door 4A communicates with the opening 3A from the lower side X2, and the opening 3A and the door 4A are opened and closed by the cover 10.
  • the user of the washing machine 1 can put the laundry S into the washing tub 4 or take out the laundry S from the washing tub 4 via the open port 4A.
  • a through hole 4E is formed in each of the circumferential wall 4B and the bottom wall 4C, and water in the outer tank 3 can pass between the outer tank 3 and the washing tub 4 through the through hole 4E. Thereby, it is possible to store water in the washing tub 4 from the side of the bottom wall 4C so as to form the same water level as the outer tub 3. The accumulated water is also present between the bottom wall 3C of the outer tank 3 and the bottom wall 4C of the washing tub 4.
  • An upper end portion of the inner peripheral surface 4F of the circumferential wall 4B is fitted with an annular balancer 11 along the circumferential direction Y.
  • the balancer 11 reduces the vibration of the washing tub 4 at the time of rotation, and the cavity 11A inside the balancer 11 accommodates a liquid for helping to reduce vibration.
  • the bottom wall 4C of the washing tub 4 is in a state of being opposed to the bottom wall 3C of the outer tub 3 from the upper side X1.
  • an outer peripheral portion adjacent to the circumferential wall 4B is formed with an annular groove 15 centered on the central axis 8 and along the circumferential direction Y.
  • the annular groove 15 has a predetermined width in the radial direction Z so as to have an annular inner peripheral edge 150 closest to the central axis 8 and an annular outer peripheral edge 151 farthest from the central axis 8.
  • the radius D of the groove 15 is a linear distance from the central axis 8 to the inlet 9, the groove 15 and the shape
  • the introduction port 9 formed in the bottom wall 3C is located at the same position in the radial direction Z. Therefore, at least a part of the groove 15 in the circumferential direction Y always faces the introduction port 9 from the upper side X1 regardless of whether the washing tub 4 is stationary or rotating.
  • the radius D of the groove 15 is a linear distance from the center axis 8 to the center of the groove 15 in the radial direction Z, as an example, the radius D of this case and the inlet port 9 from a circle.
  • the linear distance from the center of the circle to the central axis 8 is equal.
  • the radius D may also be defined as the linear distance from the central axis 8 to the inner circumference 150 of the groove 15 of the radial direction Z.
  • the radius D of this case is closest to the inlet port 9 from the central axis 8.
  • the linear distance from the edge to the central axis 8 is equal.
  • the radius D may also be defined as a linear distance from the central axis 8 to the outer periphery 151 of the groove 15 in the radial direction Z.
  • the radius D of this case is the end farthest from the central axis 8 in the introduction port 9.
  • the straight line distance from the edge to the central axis 8 is equal.
  • the radius D is set to be any position from the introduction port 9 to the center axis 8.
  • the straight line distance of the radial Z is equal.
  • FIG. 2 is a bottom view of the bottom wall 4C of the washing tub 4.
  • Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2;
  • Fig. 4 is a side view showing the bottom wall 4C of the main portion in a cross-sectional view.
  • a plurality of ribs 16 extending in the circumferential direction Y and the radial direction Z are formed on the lower surface of the bottom wall 4C.
  • the annular space surrounded by the pair of annular ribs 16A of the ribs 16 which are adjacent to each other and which extends in the circumferential direction Y and protrudes downward to the lower side X2 is the groove 15 .
  • the annular groove 15 may be continuously formed over the entire area in the circumferential direction Y, or as shown in FIG. 2, including the rib 16 extending in the radial direction Z, which is cut substantially in the middle of the rib 16 in the circumferential direction Y. Ring structure. As shown in FIG.
  • the groove 15 is formed so as to be recessed upward by X1 on the lower surface portion 4G of the bottom wall 4C. Therefore, the depth direction of the groove 15 is the upper side X1.
  • the portion of the bottom wall 4C that blocks the groove 15 from the upper side X is the groove bottom 15A of the groove 15.
  • a vent hole 17 penetrating the bottom wall 4C in the vertical direction X is formed inside the groove 15.
  • the number of the vent holes 17 can be arbitrarily determined.
  • the four vent holes 17 are arranged at equal intervals along the circumferential direction Y (see FIG. 2).
  • Each of the vent holes 17 is formed in the groove bottom 15A.
  • the vent hole 17 is formed in a circular shape in the present embodiment, and may be, for example, a long hole having a circumferential length Y.
  • the groove bottom 15A is an inclined surface which is inclined so that the groove 15 may become deeper toward the direction of each vent hole 17.
  • the region 15B on both sides of the circumferential direction Y with respect to the vent hole 17 is formed so as to be inclined upward from the vent hole 17 toward the upper side X1, and an inverted V shape is formed as viewed from the radial direction Z.
  • the motor 5 is disposed in the casing 2 below the center X2 of the center of the bottom wall 3C of the outer tub 3. Electricity
  • the output shaft of the machine 5 is divided into a tubular first output shaft 5A that extends upward X1 along the central axis 8, and a second output shaft 5B that is inserted into the first output shaft 5A with a gap therebetween.
  • the motor 5 can selectively output a driving force from one of the first output shaft 5A and the second output shaft 5B via the shifting mechanism 18.
  • the first output shaft 5A extends upward X1 and sequentially passes through the center of the bottom wall 3C and the center of the bottom wall 4C of the washing tub 4.
  • the first output shaft 5A has a flange portion 5C that protrudes in a flange shape between the bottom wall 3C and the bottom wall 4C, and is coupled to the washing tub 4 by fixing the flange portion 5C to the bottom wall 4C.
  • the pulsator 6 is a disk that is disposed in the horizontal direction H at the bottom 4D of the washing tub 4.
  • the circumferential direction of the pulsator 6 coincides with the circumferential direction Y of the washing tub 4, and the radial direction of the pulsator 6 coincides with the radial direction Z of the washing tub 4.
  • the pulsator 6 is provided with a plurality of convex portions 6B arranged in the circumferential direction Y on the upper surface 6A constituting the surface, and a plurality of blades 6D arranged in the circumferential direction Y on the lower surface 6C constituting the back surface.
  • Each of the convex portions 6B is formed in a rib shape (refer to FIG.
  • each of the blades 6D is in the shape of a thin plate in the circumferential direction Y, and is formed from the center portion of the pulsator 6 Radial configuration.
  • a region between the adjacent convex portions 6B is formed with a plurality of through holes 6E (see FIG. 5) through which the pulsator 6 penetrates in the vertical direction X.
  • the second output shaft 5B of the motor 5 is attached to the center portion of the pulsator 6 at an upper end portion that is exposed above the flange portion 5C by X1.
  • the pulsator 6 rotates about the central axis 8 which is the center of rotation of the washing tub 4. At this time, the rotation of the washing tub 4 is in a stopped state.
  • the washing operation and the rinsing operation are performed, the laundry S in the washing tub 4 is stirred by the convex portion 6B of the rotating pulsator 6.
  • Fig. 6 is a longitudinal sectional view of the washing machine when it is cut at a position different from Fig. 1; Referring to Fig. 6, the inner peripheral surface 4F of the washing tub is equipped with a pumping path 20.
  • the number of pumping passages 20 can be arbitrarily set, and may be one or plural.
  • the pumping path 20 includes a main body portion 21 based on a posture in a state of being attached to the washing tub 4.
  • the main body portion 21 has a cover shape that is thin in the radial direction Z and long in the vertical direction X, and is mounted between the balancer 11 and the bottom wall 4C of the washing tub 4 in the vertical direction, and is attached to the washing tub from the radially inner side Z1. 4 inner circumferential surface 4F. Therefore, the main body portion 21 has a rear surface 21A opposed to the inner circumferential surface 4F of the washing tub 4 and a surface 21B on the opposite side of the back surface 21A and facing the central axis 8 side.
  • Both end portions of the main body portion 21 in the circumferential direction Y constitute a curved portion 21C that is bent outward in the radial direction outer side Z2 over the entire vertical direction X.
  • Each of the curved portions 21C is in contact with the inner peripheral surface 4F of the washing tub 4 from the radially inner side Z1 over the entire vertical direction X.
  • the back surface 21A of the main body portion 21 is provided with the flow path 22.
  • the flow path 22 is a space sandwiched by the back surface 21A of the main body portion 21 and the inner circumferential surface 4F of the washing tub 4.
  • the lower end of the flow path 22 serves as the inlet 23, and is located at the bottom portion 4D of the washing tub 4, and faces the vane 6D of the lower surface 6C of the pulsator 6 from the radially outer side Z2.
  • Fig. 7 which is a plan view of the bottom wall 4C of the washing tub 4, the vent hole 17 at the same position as the inlet 23 in the circumferential direction Y is located on the line segment N which is connected to the center shaft 8 and the inlet 23 which are the rotation centers of the pulsator 6. It should be noted that, in FIG. 7, two line segments N arranged on the same straight line are shown.
  • an upper end portion of the main body portion 21 is formed with an outlet 24 formed by slitting the main body portion 21 from the surface 21B, and the outlet 24 is in a state of being in communication with the upper end portion of the flow path 22 at a position higher than the inlet 23. Therefore, the flow path 22 extends from the inlet 23 to the upper side X1 to the outlet 24.
  • the surface 21B of the main body portion 21 is provided with a cover 26 that opens and closes the outlet 24. When the lid 26 is opened to the radially inner side Z1, a part of the flow path 22 is exposed from the outlet 24, so that the detergent can be introduced into the flow path 22. After the detergent is put in, the lid 26 is closed.
  • the outlet 24 may be provided at a position different from the portion that is opened and closed by the lid 26.
  • a discharge port 25 that penetrates the main body portion 21 and communicates with the flow path 22 is provided in a region between the inlet 23 and the outlet 24 in the vertical direction X.
  • the discharge port 25 is, for example, a vertically long slit, and is formed in a plurality in the lower portion of the surface 21B of the main body portion 21 in the circumferential direction Y.
  • the pump 7 is an air supply device such as an air pump.
  • the hose 30 connected to the pump 7 is coupled to the introduction port 9 (in the present embodiment, the above-described tube 12) of the bottom wall 3C of the outer tub 3.
  • the introduction port 9 in the present embodiment, the above-described tube 12
  • the drive pump 7 external air is sent to the hose 30 by the drive pump 7, and air is introduced from the hose 30 to the introduction port 9.
  • Fig. 8 is an enlarged view of a main portion surrounded by a two-dot chain line in Fig. 1.
  • Fig. 9 is an enlarged view of a main portion surrounded by a two-dot chain line in Fig. 6.
  • the air introduced into the inlet port 9 becomes bubbles K in the water accumulated in the outer tub 3, floats from the inlet port 9, and is received by the groove 15 located directly above the inlet port 9 in the washing tub 4.
  • the bubble K received by the groove 15 and entering the inside of the groove 15 is introduced into any of the ventilated grooves 15A through the inclined groove bottom 15A of the groove 15.
  • the hole 17 (also see Fig. 4), as shown in Fig. 9, passes through the vent hole 17 and floats. Thereby, the bubble K is sent into the washing tub 4 through the vent hole 17.
  • the bubble K emerging from the vent hole 17 and sent into the washing tub 4 reaches the lower side X2 of the pulsator 6.
  • the pulsator 6 is rotating, and the bubble K of the lower side X2 of the pulsator 6 is sent to the inlet 23 of the pumping path 20 by the blade 6D.
  • the bubble K transferred from the vent hole 17 to the inlet 23 as described above rises as the pulsator 6 rotates and adheres to the water swelled in the flow path 22 of the water pumping path 20, as indicated by a thick broken line arrow, from the discharge port. 25 is ejected into the washing tub 4 (specifically, a region above the pulsator 6 by X1), and is poured from the outlet 24 into the washing tub 4.
  • the air bubbles K ejected into the washing tub 4 are used to wash the laundry S in the washing tub 4.
  • the bubble K either foams the detergent to form a large amount of detergent foam, uniformly wraps the laundry, or peels the dirty component from the laundry S by the impact at the time of rupture.
  • the groove 15 that receives the bubble K from the inlet port 9 in the bottom wall 4C of the washing tub 4 is formed in a ring shape along the circumferential direction Y (see FIG. 2).
  • the annular groove 15 is disposed on the radially outer side Z2 of the central axis 8 away from the bottom wall 4C.
  • the introduction port 9 opposed to the groove 15 from the lower side X2 is also disposed on the radially outer side Z2 of the bottom wall 3C of the outer groove 3 away from the center axis 8 (see FIG. 8).
  • the size of the groove 15 and the vent hole 17 and the introduction port 9 formed inside can be freely increased without being restricted by other members such as the motor 5 disposed in the center shaft 8 of the washing tub 4.
  • a large number of air bubbles K can be transferred from the introduction port 9 to the groove 15, and can be sent into the washing tub 4 from the vent hole 17.
  • the groove 15 can receive the bubble K floating from the introduction port 9 without interruption, and The bubble K is sent from the vent hole 17 into the washing tub 4 (refer to Fig. 8).
  • the groove bottom 15A of the groove 15 in which the vent hole 17 is formed is an inclined surface that is inclined so that the groove 15 goes deeper in the direction of the vent hole 17. Therefore, the air bubbles K received by the grooves 15 are smoothly introduced into the vent holes 17 through the inclined groove bottoms 15A, so that the air bubbles can be efficiently fed into the washing tub 4 (see FIG. 4).
  • a part of the bubble K reaching the lower portion X2 of the pulsator 6 passes through the through hole 6E of the pulsator 6, the pulsator 6 in the radial direction Z, and the lower end portion of the circumferential wall 4B of the washing tub 4 (in FIG. 9, the pumping path 20)
  • the gap J between the lower end portions is floated, thereby being supplied to the laundry S in the washing tub 4.
  • the blade 6D of the rotating pulsator 6 feeds the bubble K emerging from the vent hole 17 into the inlet 23 of the pumping path 20. Therefore, the bubble K can be efficiently adhered to the circulating water and sent into the washing tub 4 without being accumulated in the lower portion X2 of the pulsator 6.
  • vent hole 17 is located at the center axis 8 which is connected as the center of rotation of the pulsator 6,
  • the line segment N of the inlet 23 (see Fig. 7) allows the vane 6D to smoothly feed the bubble K from the vent hole 17 into the inlet 23 to circulate water.
  • the dedicated discharge port 25 for discharging the bubble K into the washing tub 4 is provided in the pumping passage 20, the bubble K can be efficiently sent from the discharge port 25 into the washing tub 4.
  • the bubble K for washing the laundry S can be efficiently fed into the washing tub 4.
  • the inlet port 9 is located between the inner peripheral edge 150 and the outer peripheral edge 151 of the groove 15 in the radial direction Z (see Fig. 1).
  • the diameter of the introduction port 9 is smaller than the interval between the inner circumference 150 and the outer circumference 151 in the radial direction Z (the width of the groove 15).
  • Fig. 10 is an enlarged view of a main portion surrounded by a broken line in Fig. 8.
  • Fig. 10 it is assumed that the bubble K emerging from the introduction port 9 of the outer tub 3 does not reach the groove 15 of the washing tub 4, but leaks into the space P between the bottom wall 3C of the outer tub 3 and the bottom wall 4C of the washing tub 4. Inside. There is no problem in the case where the leaked bubble K remains in the space P.
  • the air bubbles K existing in the space P adhere to the discharged water and are discharged outside the washing machine.
  • an anti-dissipation structure 31 for preventing the bubble K from being dissipated to the gap Q is provided across the outer tub 3 and the washing tub 4.
  • the anti-scatter structure 31 includes a flange 32 extending from the entire area on the circumferential direction Y of the bottom wall 4C of the washing tub 4 to the radially outer side Z2 and a whole area in the circumferential direction Y from the lower end of the circumferential wall 3B of the outer tub 3.
  • the step portion 33 that protrudes toward the radially inner side Z1.
  • the lower surface 32A of the flange 32 and the upper surface 33A of the step portion 33 are flat in the horizontal direction H, and the lower surface 32A is overlapped with the upper surface 33A from the upper surface X1 via the gap R.
  • the gap R is a space that expands in the horizontal direction H toward the radially outer side Z2, and is thinner in the vertical direction X.
  • the space P between the bottom wall 3C of the outer tub 3 and the bottom wall 4C of the washing tub 4 communicates with the gap Q via the gap R. Therefore, even if the bubble K which has come out from the inlet port 9 and exists in the space P reaches the gap R, it is blocked by the flange 32 and cannot float to the gap Q.
  • Fig. 11 is a longitudinal sectional view showing the internal structure of a washing machine 1 according to a modification of the present invention.
  • the inlet 23 of the pumping passage 20 may be located directly above at least one of the vent holes 17 of the bottom wall 4C of the washing tub 4.
  • the bubble K emerging from the vent hole 17 located directly below the inlet 23 will directly reach the inlet 23 when it floats.
  • the air bubbles K floating from the vent holes 17 are quickly attached to the circulating water through the water suction path 20, and the air bubbles K can be more efficiently fed into the washing tub 4.
  • the main body portion 21 of the water pumping path 20 is a cover shape
  • the flow path 22 is a space defined by the back surface 21A of the main body portion 21, the pair of curved portions 21C of the back surface 21A, and the inner circumferential surface 4F of the washing tub 4. That is, the flow path 22 is strictly constituted by the cooperation of the pumping path 20 and the inner peripheral surface 4F of the washing tub 4.
  • the main body portion 21 may be a hollow body, and the flow path 22 may be formed by the hollow portion thereof, whereby the pumping path 20 alone constitutes the structure of the flow path 22.
  • the pumping path 20 another type of pumping path 20A (see also FIG. 1) in which the filter 40 is provided at the vertically long outlet 24 can be used.
  • the water pumping path 20A captures the foreign matter contained in the water through the filter 40.
  • vent hole 17 formed in the bottom wall 4C of the washing tub 4 is not limited to the groove bottom 15A of the groove 15, and may be formed in the side wall 15C of the groove 15 (see Fig. 9).

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

本发明提供一种能够将用于洗涤容纳于洗涤槽的洗涤物的气泡高效地送入洗涤槽内的洗衣机。洗衣机（1）包含：能够蓄水的外槽（3）和容纳于外槽（3）内并且能够旋转的洗涤槽（4）。外槽（3）的底壁（3C）形成有供空气导入的导入口（9）。洗涤槽（4）的底壁（4C）从上方（X1）与底壁（3C）对置，底壁（4C）的下表面部（4G）形成有槽（15）。槽（15）形成为以从洗涤槽（4）的旋转中心（中心轴（8））至导入口（9）的距离为半径（D）并以中心轴（8）为圆心的环状，从上方（X1）与导入口（9）对置。槽（15）的内侧形成有贯通底壁（4C）的通气孔。通气孔将槽（15）从导入口（9）接收的气泡送入洗涤槽（4）内。

Description

洗衣机 技术领域
本发明涉及洗衣机。
背景技术
下述专利文献1的洗衣机在旋转自如地设于外槽内的脱水槽的底部旋转自如地设有波轮。外槽的底部设有空气的导入口，导入口通过通气软管连结于空气泵。对洗涤物进行洗涤时，空气泵被驱动，空气通过通气软管送至外槽内，从导入口产生气泡。所产生的气泡通过设于脱水槽的底壁的吸入口蓄积于波轮的下方，通过波轮的背叶片被粉碎并细微化之后浮起，与洗涤物接触。
通过气泡与洗涤物接触破裂时产生的冲击波，能够将污浊成分从洗涤物剥离。此外，通过气泡改善洗涤剂的起泡效果，生成大量的洗涤剂泡沫，只需使用少量的水就能够通过洗涤剂泡沫使洗涤剂成分以及水分浸透至洗涤物，均匀地对洗涤物进行清洗。而且，由于能够通过洗涤剂泡沫对洗涤物进行包裹洗涤，因此能够减少洗涤物的损伤。像这样，通过使用气泡对洗涤物进行洗涤，能够减少洗涤物的损伤并谋求节水以及洗净力的提高。
现有技术文献
专利文献
专利文献1：日本特开2000-51562号公报
发明所要解决的问题
在专利文献1的洗衣机中，空气的导入口设于外槽的底部的中央部，用于将从导入口产生的气泡送入脱水槽内的吸入口设于脱水槽的底壁的中央部。这样的结构由于受到来自设于外槽的底部的中央部的动力切换机构、轴承等部件；位于脱水槽的底壁的中央部的脱水槽的旋转轴、波轮的旋转轴等的制约，不能增大导入口以及吸入口的尺寸。这样一来，难以将气泡高效地送入脱水槽内。此外，与导入口相连的通气软管的配置也受到制约。
发明内容
本发明是在相关背景之下形成的，其目的在于，提供一种能够将用于洗涤 容纳于洗涤槽的洗涤物的气泡高效地送入洗涤槽内的洗衣机。
用于解决问题的方案
本发明是洗衣机，其特征在于，包含：外槽，具有形成有供空气导入的导入口的第1底壁，能够蓄水；洗涤槽，容纳于所述外槽内，容纳洗涤物并且能够旋转，具有从上方与所述第1底壁对置的第2底壁和用于使水在所述洗涤槽与所述外槽之间往来的贯通孔；槽，形成于所述第2底壁的下表面部，形成为以从所述洗涤槽的旋转中心至所述导入口的距离为半径并以所述洗涤槽的旋转中心为圆心的环状，并从上方与导入口对置；通气孔，形成于所述槽的内侧并且贯通所述第2底壁，将所述槽从所述导入口接收的气泡送入所述洗涤槽内。
此外，本发明的特征在于，所述通气孔形成于所述槽的槽底，所述槽底是以使所述槽越往所述通气孔的方向越深的方式倾斜的倾斜面。
此外，本发明的特征在于，包含：抽水路，具有位于所述洗涤槽的底部的入口、位于高于所述入口的位置的出口和从所述入口向上方延伸至所述出口的流路，从所述入口抽取存积在所述洗涤槽的水并通过所述流路汲上来从所述出口喷到所述洗涤槽内；叶片，通过绕着所述洗涤槽的旋转中心旋转，将从所述通气孔出来的气泡送入所述入口，所述通气孔位于连接所述洗涤槽的旋转中心和所述入口的线段上。
此外，本发明的特征在于，包含：抽水路，具有位于所述洗涤槽的底部的入口、位于高于所述入口的位置的出口和从所述入口向上方延伸至所述出口的流路，从所述入口抽取存积在所述洗涤槽的水并通过所述流路汲上来从所述出口喷到所述洗涤槽内，所述入口位于所述通气孔的正上方。
此外，本发明的特征在于，所述抽水路中，在所述入口和所述出口之间的区域设有用于将从所述通气孔转移至所述入口的气泡喷出至所述洗涤槽内的喷出口。
此外，本发明的特征在于，设有用于防止从所述导入口出来的气泡散逸至比所述第2底壁靠上方的所述外槽和所述洗涤槽的间隙的防散逸构造。
发明效果
根据本发明，外槽从第1底壁侧蓄水，可旋转地容纳于外槽内的洗涤槽从第2底壁侧蓄积介由贯通孔在洗涤槽和外槽之间往来的水。被导入形成于第1底壁的导入口的空气在蓄积于外槽的水中成为气泡并从导入口浮起。在第2底 壁，形成于从上方与第1底壁对置的下表面部的槽接收从导入口浮起的气泡。形成于槽的内侧的通气孔将通过槽接收的气泡送入洗涤槽内。被送入洗涤槽内的气泡用于对洗涤槽内的洗涤物进行洗涤。
槽形成为以洗涤槽的旋转中心为圆心的环状。由此，环状的槽配置于第2底壁的远离洗涤槽的旋转中心的外侧。因此，从下方与槽对置的导入口配置于第1底壁的远离与洗涤槽的旋转中心一致的部分的外侧。由此，能够不受来自配置于洗涤槽的旋转中心的其他部件的制约地增大槽、形成于其内侧的通气孔和导入口的各自的尺寸。由此，能够将大量的气泡从导入口转移至槽，并从通气孔送入洗涤槽内。
此外，环状的槽的半径是从洗涤槽的旋转中心至导入口的距离。因此，槽的至少一部分即使在洗涤槽旋转的过程中也始终从上方与导入口对置，所以，槽能够不间断地接收从导入口浮起的气泡并从通气孔送入洗涤槽内。
以上所带来的结果是：能够将用于对洗涤物进行洗涤的气泡高效地送入洗涤槽内。
此外，根据本发明，通气孔形成于槽的槽底，槽底是以使槽越往通气孔的方向越深的方式倾斜的倾斜面。因此，由槽接收的气泡通过倾斜的槽底被顺利地导入通气孔，所以，能够将气泡更加高效地送入洗涤槽内。
此外，根据本发明，抽水路从入口抽取存积在洗涤槽的水并通过流路汲上来，从出口喷到洗涤槽内，由此，使水在洗涤槽和抽水路之间循环，因此，能够利用少量的水进行洗涤。而且，绕着洗涤槽的旋转中心旋转的叶片将从通气孔出来的气泡送入抽水路的入口，因此，能够使气泡有效地附着于循环水并送入洗涤槽内。通气孔位于连接洗涤槽的旋转中心和入口的线段上，因此，叶片能够将从通气孔出来的气泡顺利地送入入口并附着于循环水。
此外，根据本发明，抽水路从入口抽取存积在洗涤槽的水并通过流路汲上来，从出口喷到洗涤槽内，由此，使水在洗涤槽和抽水路之间循环，能够利用少量的水进行洗涤。而且，抽水路的入口位于通气孔的正上方，因此，能够通过将从通气孔浮上来的气泡快速地附着于循环水而更加有效地送入洗涤槽内。
此外，根据本发明，用于将气泡喷出至洗涤槽内的专用的喷出口设于抽水路，因此，能够将气泡从喷出口更加高效地送入洗涤槽内。
此外，根据本发明，气泡散逸至比第2底壁靠上方的外槽和洗涤槽的间隙 的情况通过防散逸构造而得以防止。由此，能够防止由于气泡进入该间隙成为阻力而阻碍洗涤槽的顺利旋转。
附图说明
图1是本发明的一个实施方式的洗衣机的内部构造的纵剖图。
图2是洗衣机所含有的洗涤槽的底壁的仰视图。
图3是图2的A-A向视剖视图。
图4是以剖视方式示出主要部分的洗涤槽的底壁的侧视图。
图5是洗衣机的外槽以及洗涤槽的俯视图。
图6是在与图1不同的位置进行剖切时的洗衣机的纵剖图。
图7是洗涤槽的底壁的俯视图。
图8是图1中以双点划线包围的主要部分的放大图。
图9是图6中以双点划线包围的主要部分的放大图。
图10是图8中以虚线包围的主要部分的放大图。
图11是本发明的变形例的洗衣机的内部构造的纵剖图。
附图标记说明
1       洗衣机
3       外槽
3C      底壁
4       洗涤槽
4C      底壁
4D      底部
4E      贯通孔
4G      下表面部
6D      叶片
8       中心轴
9       导入口
15      槽
15A     槽底
17      通气孔
20      抽水路
22      流路
23      入口
24      出口
25      喷出口
31      防散逸构造
D       半径
K       气泡
N       线段
Q       间隙
S       洗涤物
X1      上方
具体实施方式
以下，参照附图，对本发明的实施方式具体地加以说明。
图1是本发明的一个实施方式的洗衣机1的内部构造的纵剖图。
首先，以图1中的上下方向X为基准，对洗衣机1的概要加以说明。在作为纵方向的上下方向X中，将上方称为上方X1，将下方称为下方X2。需要说明的是，洗衣机1不仅是进行洗涤物S的洗涤运转、漂洗运转以及脱水运转的洗衣机，还包括进行烘干运转的洗衣干衣机。
洗衣机1包括形成为箱状的机壳2、配置于机壳2内的外槽3、洗涤槽4、电机5、波轮6以及泵7。
外槽3例如为树脂制，并形成为有底圆筒状。外槽3具有：上端具有开口部3A的大致圆筒状的圆周壁3B和从下方X2堵塞圆周壁3B的中空部分并且形成为圆板形状的作为第1底壁的底壁3C。开口部3A通过连结于圆周壁3B的罩10开闭。自来水、洗澡水以及溶有洗涤剂的液体等水能够从底壁3C侧蓄积在外槽3内。
在底壁3C，在邻接于圆周壁3B的外周部，形成有在上下方向X贯通底壁3C的导入口9。导入口9可以只设一个，也可以以排列在外槽3的周圆周方向 上方式设置多个。此外，导入口9可以直接形成于底壁3C，也可以如图1所示，树脂制的管12装配于底壁3C，其中空部分作为导入口9露出底壁3C的上表面。
洗涤槽4形成为比外槽3小一圈的有底圆筒状，容纳洗涤物S。洗涤槽4具有：上端具有出入口4A的大致圆筒状的圆周壁4B和从下方X2堵塞圆周壁4B的中空部分并且形成为圆板形状的作为第2底壁的底壁4C。例如，圆周壁4B是金属制的，在底壁4C，圆心部分是金属制的，外周部分是树脂制的。底壁4C的外侧周缘部形成为向上方X1弯曲的筒状，也可以被视为圆周壁4B的下端部。底部4C和圆周壁4B的与底壁4C连接的下端部构成洗涤槽4的底部4D。洗涤槽4以同轴状态容纳于外槽3内。被容纳于外槽3内的状态下的洗涤槽4能够以作为其轴线的沿上下方向X延伸的中心轴8为中心旋转。这样的洗衣机1是洗涤槽4被纵向配置的纵型洗衣机。
洗涤槽4的中心轴8也是外槽3的中心轴，以中心轴8为旋转中心的洗涤槽4的旋转方向与外槽3以及洗涤槽4各自的周向Y一致。以下，将以中心轴8为基准的径向称为径向Z，在径向Z中，将朝向中心轴8侧称为径向内侧Z1，将远离中心轴8侧称为径向外侧Z2。周向Y以及径向Z均是沿着水平方向H的方向。
出入口4A从下方X2与开口部3A连通，开口部3A以及出入口4A通过罩10统一开闭。洗衣机1的使用者能够介由开放的出入口4A，将洗涤物S放入洗涤槽4内或从洗涤槽4内取出洗涤物S。在圆周壁4B以及底壁4C分别形成有贯通孔4E，外槽3内的水能够介由贯通孔4E，在外槽3和洗涤槽4之间往来。由此，能够以与外槽3形成相同水位的方式从底壁4C侧蓄水在洗涤槽4。蓄积的水也存在于外槽3的底壁3C和洗涤槽4的底壁4C之间。
圆周壁4B的内周面4F的上端部装配有沿着周向Y的环状的平衡器11。平衡器11使旋转时的洗涤槽4的振动降低，平衡器11的内部的空洞11A容纳有用于帮助降低振动的液体。
洗濯槽4的底壁4C处于从上方X1与外槽3的底壁3C对置的状态。在底壁4C的下表面部4G，与圆周壁4B邻接的外周部分形成有以中心轴8为圆心且沿着周向Y的环状的槽15。环状的槽15以具有离中心轴8最近的环状的内周缘150和离中心轴8最远的环状的外周缘151的方式，在径向Z上具有规定的宽度。此外，槽15的半径D是从中心轴8至导入口9的直线距离，槽15与形 成于底壁3C的导入口9在径向Z上位于相同的位置。因此，无论洗涤槽4是在静止中还是在旋转中，周向Y上的槽15的至少一部分始终从上方X1与导入口9对置。
需要说明的是，在图1中，槽15的半径D是从中心轴8至径向Z上的槽15的中心的直线距离，作为一例，该情况的半径D与从圆形的导入口9的圆心至中心轴8的直线距离相等。可选择地，半径D也可以被定义为从中心轴8至径向Z的槽15的内周缘150的直线距离，作为一例，该情况的半径D与导入口9中从离中心轴8最近的端缘至中心轴8的直线距离相等。而且，半径D也可以被定义为从中心轴8至径向Z的槽15的外周缘151的直线距离，作为一例，该情况的半径D与导入口9中从离中心轴8最远的端缘至中心轴8的直线距离相等。总之，在将从槽15的任一位置至中心轴8的径向Z的直线距离设为半径D时，只要设定为使该半径D与从导入口9的任一位置至中心轴8的径向Z的直线距离相等即可。
图2是洗涤槽4的底壁4C的仰视图。图3是图2的A-A向视剖视图。图4是以剖视方式示出主要部分的底壁4C的侧视图。
参照图2，底壁4C的下表面形成有多个往周向Y、径向Z延伸的棱16。由这些棱16中的彼此相邻且在周向Y上延伸并向下方X2突出的一对环状的棱16A从径向Z包夹的环状空间即为槽15。环状的槽15既可以遍及周向Y上的整个区域地连续形成，也可以如图2所示，包含由在径向Z上延伸的棱16将周向Y上的棱16中途切断的大致环状的结构。如图3所示，槽15形成为在底壁4C的下表面部4G向上方X1凹陷。因此，槽15的深度方向是上方X1。底壁4C中从上方X堵塞槽15的部分即为槽15的槽底15A。
槽15的内侧形成有在上下方向X贯通底壁4C的通气孔17。通气孔17的数量能够任意地决定，在本实施方式中，4个通气孔17沿着周向Y以等间隔配置(参照图2)。各个通气孔17形成于槽底15A。通气孔17在本实施方式中形成为圆形，例如，可以是周向Y长的长孔。如图4所示，槽底15A是以使槽15越往各个通气孔17的方向越深的方式倾斜的倾斜面。因此，在槽底15A，相对于通气孔17位于周向Y的两侧的区域15B以越靠近通气孔17越向上方X1偏离的方式，从径向Z观察形成倒V字形。
参照图1，电机5在机壳2内配置于外槽3的底壁3C的圆心的下方X2。电 机5的输出轴分为沿中心轴8向上方X1延伸的管状的第1输出轴5A和保持间隙地插通第1输出轴5A的第2输出轴5B。电机5介由变速机构18，能够从第1输出轴5A及第2输出轴5B的某一方选择性地输出驱动力。
第1输出轴5A向上方X1延伸，依次贯通底壁3C的圆心以及洗涤槽4的底壁4C的圆心。第1输出轴5A具有在底壁3C和底壁4C之间以凸缘状伸出的法兰部5C，并通过使法兰部5C固定于底壁4C，从而连结于洗涤槽4。当电机5被驱动且驱动力被传递至第1输出轴5A时，洗涤槽4旋转。
波轮6是在洗涤槽4的底部4D沿水平方向H配置的圆盘。波轮6的周向与洗涤槽4的周向Y一致，波轮6的径向与洗涤槽4的径向Z一致。波轮6在构成表面的上表面6A设有在周向Y上排列的多个凸部6B，在构成背面的下表面6C设有在周向Y上排列的多个叶片6D。各凸部6B形成为沿着波轮6的径向Z并且向上方X1鼓起的筋状(参照图5)，各叶片6D是周向Y上的薄板状，从波轮6的圆心部分呈放射状配置。在波轮6，相邻的凸部6B之间的区域形成有供波轮6在上下方向X贯通的多个贯通孔6E(参照图5)。
电机5的第2输出轴5B的露出到比法兰部5C靠上方X1的上端部装配于波轮6的圆心部分。当电机5被驱动，驱动力被传递至第2输出轴5B时，波轮6绕着作为洗涤槽4的旋转中心的中心轴8旋转。此时，洗涤槽4的旋转处于停止状态。在进行洗涤运转和漂洗运转时，洗涤槽4内的洗涤物S通过旋转的波轮6的凸部6B被搅拌。
图6是在与图1不同的位置剖切时的洗衣机的纵剖图。参照图6，洗涤槽的内周面4F装配有抽水路20。抽水路20的数量能够任意地设定，可以是一个也可以是多个。
以装配于洗涤槽4的状态的姿势为基准，抽水路20包括主体部21。主体部21是径向Z薄、上下方向X长的罩状，以架设于平衡器11和洗涤槽4的底壁4C之间并沿着上下方向的姿势，从径向内侧Z1安装于洗涤槽4的内周面4F。因此，主体部21具有与洗涤槽4的内周面4F对置的背面21A和位于背面21A的相反侧并且面向中心轴8侧的表面21B。
主体部21的周向Y上的两端部构成遍及上下方向X的全域地向径向外侧Z2折弯的弯曲部21C。各弯曲部21C遍及上下方向X的全域地从径向内侧Z1与洗涤槽4的内周面4F接触。由此，主体部21的背面21A设有流路22。
流路22是被主体部21的背面21A和洗涤槽4的内周面4F所夹的空间。流路22的下端作为入口23，位于洗涤槽4的底部4D，从径向外侧Z2面向波轮6的下表面6C的叶片6D。参照作为洗涤槽4的底壁4C的俯视图的图7，周向Y上与入口23位于相同位置的通气孔17位于连接作为波轮6的旋转中心的中心轴8和入口23的线段N上。需要说明的是，在图7中，示出配置于同一直线上的2条线段N。
参照图6，主体部21的上端部形成有从表面21B将主体部21豁口而成的出口24，出口24在高于入口23的位置处于与流路22的上端部连通的状态。因此，流路22从入口23向上方X1延伸至出口24。主体部21的表面21B设有对出口24进行开闭的盖26。由于当将盖26向径向内侧Z1打开时，流路22的一部分从出口24露出，因此，能够将洗涤剂投入流路22。投入洗涤剂后，盖26关闭。需要说明的是，也可以在与通过盖26开闭的部分不同的位置设置出口24。
当波轮6旋转时，蓄积于洗涤槽4的底部4D的水通过旋转的波轮6的叶片6D送入抽水路20的入口23，从入口23抽取到流路22内。被抽取到流路22内的水如粗箭头所示，通过流路22被上汲至出口24，之后，从出口24的盖26的周围的间隙喷出到洗涤槽4内。由此，水在洗涤槽4和抽水路20之间循环，因此，能够利用少量的水进行洗涤。
此外，在抽水路20的主体部21的表面21B，在上下方向X上的入口23和出口24之间的区域，设有贯通主体部21并且与流路22连通的喷出口25。喷出口25例如是纵长的缝隙，并且在主体部21的表面21B的下部，沿周向Y排列形成多个。洗涤运转时，如上所述，被投入流路22的洗涤剂溶于循环水而成为洗涤剂水，从出口24、喷出口25泼向洗涤槽4内的洗涤物S。
参照图1，泵7是空气泵等空气供给装置。连接于泵7的软管30连结于外槽3的底壁3C的导入口9(在本实施方式中是上述管12)。洗涤运转时，通过驱动泵7将外部空气送入软管30，空气从软管30被导入至导入口9。
图8是图1中以双点划线包围的主要部分的放大图。图9是图6中以双点划线包围的主要部分的放大图。
如图8所示，导入至导入口9的空气在蓄积于外槽3的水中变成气泡K并从导入口9浮起，被洗涤槽4中位于导入口9的正上方的槽15接收。由槽15接收并进入槽15的内侧的气泡K通过槽15的倾斜的槽底15A被导入任一通气 孔17(也参照图4)，如图9所示，从通气孔17通过并且浮起。由此，气泡K通过通气孔17被送入洗涤槽4内。
从通气孔17出来并且被送入洗涤槽4内的气泡K到达波轮6的下方X2。此时，波轮6在旋转中，并通过叶片6D将波轮6的下方X2的气泡K送入抽水路20的入口23。
像这样地从通气孔17转移至入口23的气泡K随着波轮6的旋转而附着于在抽水路20的流路22内汲上来的水而上升，如粗虚线箭头所示，从喷出口25喷出至洗涤槽4内(具体地讲是比波轮6靠上方X1的区域)，从出口24泼到洗涤槽4内。喷出至洗涤槽4内的气泡K用于对洗涤槽4内的洗涤物S进行洗涤。具体地讲，气泡K或者使洗涤剂起泡而形成大量的洗涤剂泡沫，对洗涤物均匀地进行包裹洗涤，或者通过破裂时的冲击将污浊成分从洗涤物S剥离。
如上所述，在洗涤槽4的底壁4C接收来自导入口9的气泡K的槽15形成为沿着周向Y的环状(参照图2)。由此，环状的槽15配置于远离底壁4C的中心轴8的径向外侧Z2。因此，从下方X2与槽15对置的导入口9也配置于外槽3的底壁3C的远离中心轴8的径向外侧Z2(参照图8)。由此，能够不受到来自配置于洗涤槽4的中心轴8的电机5等其他部件的制约地自由地增大槽15、形成于其内侧的通气孔17以及导入口9的各自的尺寸。由此，能够从导入口9将大量的气泡K转移至槽15，并且从通气孔17送入洗涤槽4内。
此外，由于槽15的至少一部分即使在洗涤槽4旋转的过程中也始终从上方X1与导入口9对置，因此，槽15能够不间断地接收从导入口9浮起的气泡K，并且将气泡K从通气孔17送入洗涤槽4内(参照图8)。而且，形成有通气孔17的槽15的槽底15A是以使槽15越往通气孔17的方向越深的方式倾斜的倾斜面。因此，由槽15所接收的气泡K通过倾斜的槽底15A被顺利地导入通气孔17，所以，能够将气泡更加高效地送入洗涤槽4内(参照图4)。
到达波轮6的下方X2的气泡K的一部分穿过波轮6的贯通孔6E、径向Z上的波轮6与洗涤槽4的圆周壁4B的下端部(图9中是抽水路20的下端部)之间的间隙J并浮起，由此，被供给至洗涤槽4内的洗涤物S。而且，如上所述，旋转的波轮6的叶片6D将从通气孔17出来的气泡K送入抽水路20的入口23。因此，能够使气泡K有效地附着于循环水而送入洗涤槽4内，而不会蓄积于波轮6的下方X2。由于通气孔17位于连接作为波轮6的旋转中心的中心轴8和 入口23的线段N上(参照图7)，因此，叶片6D能够将从通气孔17出来的气泡K顺利地送入入口23，使之于循环水。
而且，由于用于将气泡K喷出至洗涤槽4内的专用喷出口25设于抽水路20，因此，能够将气泡K更加高效地从喷出口25送入洗涤槽4内。
以上所带来的结果是：能够将用于对洗涤物S进行洗涤的气泡K高效地送入洗涤槽4内。
为了将气泡K更加高效地送入洗涤槽4内，优选在径向Z，使导入口9位于槽15的内周缘150和外周缘151之间(参照图1)。在该情况下，导入口9的直径小于径向Z上的内周缘150和外周缘151的间隔(槽15的宽度)。由此，由于槽15始终从上方X1与整个导入口9对置(参照图2)，因此，能够尽可能不泄漏地接收从导入口9浮起的气泡K并从通气孔17送入洗涤槽4内。
图10是图8中以虚线包围的主要部分的放大图。参照图10，假设从外槽3的导入口9出来的气泡K未到达洗涤槽4的槽15，而是漏到外槽3的底壁3C和洗涤槽4的底壁4C之间的空间P内。漏出的气泡K留在空间P内的情况下并没有问题。需要说明的是，在对蓄积于外槽3的水进行排水时，存在于空间P的气泡K附着于排出的水而被排出洗衣机外。
但是，当气泡K散逸至比底壁4C靠上方X1的外槽3的圆周壁3B和洗涤槽4的圆周壁4B之间的间隙Q时，进入间隙Q的气泡K成为阻力，由此，有可能阻碍脱水运转等情况下洗涤槽4的顺利旋转。因此，在洗衣机1，跨越外槽3和洗涤槽4地设有用于防止气泡K散逸至间隙Q的防散逸构造31。
防散逸构造31包括：从洗涤槽4的底壁4C的周向Y上的全域向径向外侧Z2伸出的法兰32和从外槽3的圆周壁3B的下端的周向Y上的全域向径向内侧Z1伸出的台阶部33。法兰32的下表面32A以及台阶部33的上表面33A在水平方向H是平坦的，下表面32A相对于上表面33A，隔着间隙R从上方X1重叠配置。
间隙R是沿着水平方向H向径向外侧Z2扩展的空间，在上下方向X上较薄。外槽3的底壁3C和洗涤槽4的底壁4C之间的空间P介由间隙R与间隙Q连通。因此，从导入口9出来并存在于空间P的气泡K即使到达间隙R，也会受法兰32的阻碍而不能向间隙Q浮起。
本发明不仅限于以上说明的实施方式，在权利要求记载的范围内，能够进 行各种变更。
图11是本发明的变形例的洗衣机1的内部构造的纵剖图。如图11所示，抽水路20的入口23也可以位于洗涤槽4的底壁4C的至少任一个通气孔17的正上方。在该情况下，当从位于入口23的正下方的通气孔17出来的气泡K会在浮起时直接到达入口23。由此，通过使从通气孔17浮起的气泡K通过抽水路20迅速地附着于循环水，能够更加高效地将气泡K送入洗涤槽4内。
此外，抽水路20的主体部21是罩状，流路22是由主体部21的背面21A、背面21A的一对弯曲部21C和洗涤槽4的内周面4F划分的空间。即，流路22严密地说是由抽水路20和洗涤槽4的内周面4F的协作构成的。可选择地，也可以采用主体部21是中空体，并通过其中空部分构成流路22，由此，抽水路20单独构成流路22的结构。
此外，作为抽水路20，可以使用在纵长的出口24设有过滤器40的其他形式的抽水路20A(也参照图1)。抽水路20A在从流路22中上升的水从出口24排出时，通过过滤器40捕获该水中含有的异物。
此外，形成于洗涤槽4的底壁4C的通气孔17不限于槽15的槽底15A，也可以形成于槽15的侧壁15C(参照图9)。

Claims (6)

  1. 一种洗衣机，其特征在于，包括：
    外槽，具有形成有供空气导入的导入口的第1底壁，能够蓄水；
    洗涤槽，容纳于所述外槽内，容纳洗涤物并且能够旋转，具有从上方与所述第1底壁对置的第2底壁和用于使水在所述洗涤槽与所述外槽之间往来的贯通孔；
    槽，形成于所述第2底壁的下表面部，形成为以从所述洗涤槽的旋转中心至所述导入口的距离为半径并以所述洗涤槽的旋转中心为圆心的环状，从上方与所述导入口对置；以及
    通气孔，形成于所述槽的内侧并贯通所述第2底壁，将所述槽从所述导入口接收的气泡送入所述洗涤槽内。
  2. 根据权利要求1所述的洗衣机，其特征在于，
    所述通气孔形成于所述槽的槽底，所述槽底是以使所述槽越往所述通气孔的方向越深的方式倾斜的倾斜面。
  3. 根据权利要求1或2所述的洗衣机，其特征在于，包括：
    抽水路，具有位于所述洗涤槽的底部的入口、位于高于所述入口的位置的出口和从所述入口向上方延伸至所述出口的流路，从所述入口抽取存积在所述洗涤槽的水并通过所述流路汲上来从所述出口喷到所述洗涤槽内；以及
    叶片，通过绕着所述洗涤槽的旋转中心旋转，将从所述通气孔出来的气泡送入所述入口，
    所述通气孔位于连接所述洗涤槽的旋转中心和所述入口的线段上。
  4. 根据权利要求1或2所述的洗衣机，其特征在于，包括：
    抽水路，具有位于所述洗涤槽的底部的入口、位于高于所述入口的位置的出口和从所述入口向上方延伸至所述出口的流路，从所述入口抽取存积在所述洗涤槽的水并通过所述流路汲上来从所述出口喷到所述洗涤槽内，
    所述入口位于所述通气孔的正上方。
  5. 根据权利要求3或4所述的洗衣机，其特征在于，
    在所述抽水路，在所述入口和所述出口之间的区域设有用于将从所述通气孔转移至所述入口的气泡喷出至所述洗涤槽内的喷出口。
  6. 根据权利要求1至5中任一项所述的洗衣机，其特征在于，
    设有用于防止从所述导入口出来的气泡散逸至比所述第2底壁靠上方的所述外槽和所述洗涤槽的间隙的防散逸构造。
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CN106381642A (zh) * 2016-10-25 2017-02-08 无锡小天鹅股份有限公司 衣物处理机和用于衣物处理机的空气泵装置
CN106400374A (zh) * 2016-10-25 2017-02-15 无锡小天鹅股份有限公司 衣物处理机和用于衣物处理机的空气泵装置
CN106521872A (zh) * 2016-11-29 2017-03-22 无锡小天鹅股份有限公司 用于洗衣机的空气泵组件及具有其的洗衣机
CN108993993A (zh) * 2018-08-31 2018-12-14 厦门米海智能科技股份有限公司 一种气泡减阻波轮及包含该波轮的清洗机
CN114717788A (zh) * 2022-04-12 2022-07-08 海信（山东）冰箱有限公司 一种波轮洗衣机

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CN106381642B (zh) * 2016-10-25 2018-12-28 无锡小天鹅股份有限公司 衣物处理机和用于衣物处理机的空气泵装置
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CN108993993B (zh) * 2018-08-31 2023-06-06 厦门米海智能科技股份有限公司 一种气泡减阻波轮及包含该波轮的清洗机
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