JP2015192734A - washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine in which water leak from an accommodation part for a detergent case hardly occurs.SOLUTION: This application discloses a washing machine for washing clothes. The washing machine includes a detergent case and a water supply unit. The water supply unit allows a detergent solution containing detergent to flow down to a washing tub. The water supply unit includes: a mounting part in which the detergent case is mounted toward a predetermined mounting direction; a flow passage structure part which is arranged above the mounting part and which regulates a flow passage for supplying water to the detergent case; and a water flowing part which is arranged below the mounting part and into which the detergent solution flows in from the detergent case. Also, the water flowing part includes: a first water flowing part into which the detergent solution flows from the detergent case; a second water flowing part which is arranged on a further rear end side in the mounting direction than the first water flowing part, and into which the detergent solution flows from the detergent case; and a partition plate for partitioning the first water flowing part and the second water flowing part.

Description

  The present invention relates to a washing machine for washing clothes.

  A conventional washing machine includes a detergent case and a flow path structure (see Patent Document 1). The user can store the detergent in the detergent case. The user supplies water from the water supply port. The water then flows down through the channel structure to the detergent case. The detergent in the detergent case is dissolved in water and supplied to the washing tub.

JP 2005-261714 A

  The technique described in Patent Literature 1 includes a stirring blade and a stirring motor in order to stir the detergent contained in the detergent case. And since a detergent liquid was stirred with strong stirring power, there existed a problem that a detergent liquid leaked from the accommodating part which accommodates a detergent case.

  An object of this invention is to provide the washing machine with which a water leak does not produce easily from the accommodating part of a detergent case.

  A washing machine according to one aspect of the present invention causes a detergent case in which a detergent is stored, a washing tub that performs a washing operation for washing clothes, and water or a detergent solution containing the detergent to flow down into the washing tub. A water supply unit. The water supply unit includes a mounting portion on which the detergent case is mounted in a predetermined mounting direction, and a flow channel structure that is disposed above the mounting portion and defines a flow channel for supplying water to the detergent case. And a drainage part that is disposed below the mounting part and into which the detergent liquid flows from the detergent case, and a discharge part that communicates with the flushing part and discharges the detergent liquid toward the washing tub. Prepare. The flowing water part is disposed on the rear end side of the mounting direction with respect to the first flowing water part into which the detergent liquid flows from the detergent case and the first flowing water part, and the detergent liquid flows in from the detergent case. And a partition plate that partitions the first flowing water portion and the second flowing water portion.

  According to this structure, a partition plate partitions a flowing water part into the front end side and rear end side in the mounting direction of a detergent case. For this reason, the water surface of the detergent liquid in each flowing water part is set high. Therefore, a stable flow is formed from the flowing water portion toward the discharge portion, and the backflow of the detergent liquid is suppressed. As a result, the detergent liquid is prevented from leaking from the mounting opening side of the mounting portion.

  In the above configuration, the flow rate of the detergent liquid flowing from the detergent case into the second flowing water part may be set smaller than the flow rate of the detergent liquid flowing from the detergent case into the first flowing water part.

  According to this structure, since a lot of detergent liquid flows in into the 1st water flow part of the mounting direction front end side of a detergent case, it is further suppressed that a detergent liquid leaks out from the mounting opening side of a mounting part.

  Said structure WHEREIN: The said water flow part may further be equipped with the discharge port connected to the said discharge part. An end portion of the partition plate may be arranged to face the discharge port so that the first flowing water portion and the second flowing water portion merge at the discharge portion.

  According to this structure, since the 1st flowing water part and the 2nd flowing water part merge in a discharge part, even if it is a case where the height of both water surface differs, a detergent liquid is passed from one flowing water part to the other flowing water part. Backflow is suppressed.

  In the above configuration, when the discharge port is viewed from the discharge portion side, the cross-sectional area of the discharge port on the first flowing water portion side and the cross-sectional area on the second flowing water portion side are equal. An end of the partition plate may be arranged.

  According to this structure, it is further prevented that a detergent liquid flows backward from one flowing water part to the other flowing water part. In addition, the detergent liquid is stably flowed into the drainage portion from the flowing water portion having a lower water surface.

  ADVANTAGE OF THE INVENTION According to this invention, the washing machine with which a water leak hardly arises from the accommodating part which accommodates a detergent case is provided.

It is a perspective view of a washing machine concerning one embodiment of the present invention. It is a perspective view of the upper housing | casing and cover body of the washing machine of FIG. FIG. 2 is a schematic structural diagram of the washing machine of FIG. 1. It is a perspective view of the water supply unit of the washing machine of FIG. It is a perspective view in the state where the cover part was removed from the water supply unit of FIG. FIG. 5 is an exploded perspective view of a housing of the paper feeding unit in FIG. 4. It is a top view of the water supply unit of FIG. It is a disassembled perspective view of the detergent case with which the water supply unit of FIG. 4 is mounted. It is a perspective view of the detergent case with which the water supply unit of FIG. 4 is mounted. FIG. 6 is a top view of the paper feeding unit in FIG. 5. FIG. 6 is a cross-sectional view of the paper feeding unit in FIG. 5. FIG. 6 is a cross-sectional view of the paper feeding unit in FIG. 5. It is a cross-sectional perspective view of the water supply unit shown by FIG. 9C. It is a top view of the holding box which comprises the water supply unit of FIG. It is a front view of the holding box which comprises the water supply unit of FIG. It is a top view of the state where the detergent case was removed from the water supply unit of FIG. It is a front view in the state where the detergent case was removed from the water supply unit of FIG. It is sectional drawing of the state from which the detergent case was removed from the water supply unit of FIG. It is a cross-sectional perspective view of the water supply unit of FIG.

  An exemplary washing machine is described below with reference to the accompanying drawings. The washing machine can be clearly understood by the following description. The terms representing directions such as “up”, “down”, “left” and “right” are merely for the purpose of clarifying the explanation. Accordingly, these terms should not be construed as limiting. Various functions associated with the washing function do not limit the principle of the embodiments described later.

<Structure of washing machine>
FIG. 1 is a schematic perspective view of the washing machine 100. FIG. 2 is a perspective view of the upper casing 620 and the lid 700 of the washing machine 100 of FIG. Further, FIG. 3 is a schematic structural diagram of the washing machine 100. The washing machine 100 will be described with reference to FIGS. 1 to 3. The washing machine 100 according to the present embodiment has not only a washing function for washing clothes but also a drying function. In another embodiment, the washing machine 100 may have an aspect without a drying function.

  The washing machine 100 includes a housing 600, a lid 700, and an operation panel 800.

  The casing 600 accommodates various members for washing and drying operations of the washing machine 100. The housing 600 has a substantially rectangular parallelepiped shape. The housing 600 includes a lower housing 610 and an upper housing 620. The upper housing 620 is disposed above the lower housing 610. A washing tub 500 (FIGS. 2 and 3) is accommodated in the lower housing 610. The washing tub 500 is a cylindrical body having an upper opening, and performs a washing operation for washing clothes. The washing operation may be an operation performed by various known washing machines. The principle of the present embodiment is not limited to a specific cleaning operation performed by the washing tub 500.

  The lid 700 is attached to the upper housing 620. The lid 700 rotates up and down on the upper housing 620. As shown in FIG. 2, the user can rotate the lid 700 upward. An input port 621 is formed in the upper housing 620. When the user rotates the lid 700 upward, the washing tub 500 is exposed through the insertion port 621. The user can put clothes into the washing tub 500 through the slot 621.

  In addition, the washing machine 100 includes a washing tub cover 622. The washing tub cover 622 is arranged to be rotatable with respect to the upper housing 620 so as to cover the upper part of the washing tub 500. In FIG. 1, the washing tub cover 622 is closed, and the washing tub 500 is sealed. In this state, the washing machine 100 can perform a drying operation. On the other hand, when the user puts clothes into the washing tub 500 through the loading port 621, the front end of the washing tub cover 622 is a fulcrum portion (not shown) disposed on the rear end side of the washing tub cover 622. The side pivots upward. As a result, the washing tub 500 communicates with the charging port 621.

  The operation panel 800 is arranged behind the insertion port 621 in the upper housing 620. The user can set various operations of the washing tub 500 by operating the operation panel 800.

<Water supply structure>
With reference to FIG. 3, the washing machine 100 includes a water supply port 200, a water supply unit 300, and a detergent case 400. The user can supply water to the washing machine 100 from the water supply port 200. The water sequentially passes through the water supply unit 300 and the detergent case 400 and reaches the washing tub 500.

  The detergent case 400 generates a detergent liquid from water and detergent. The detergent case 400 includes a handle portion 440 (FIGS. 1 and 2). The handle portion 440 of the detergent case 400 faces the insertion port 621. Therefore, the user can access the detergent case 400 by rotating the lid 700 upward.

  The detergent case 400 further includes a first chamber 410, a second chamber 420, and a third chamber 430. The user can store the detergent powder in the first chamber 410. The user can store the liquid detergent in the second chamber 420. The user can store a softener and other finishing agents that act on clothing fibers in the third chamber 430. Note that the third chamber 430 is not necessarily required. The principle of this embodiment is not limited at all by the third chamber 430. The structure of the detergent case 400 will be described in detail later.

  Water supply unit 300 includes a water supply valve 310 and a flow path structure portion 320. The water supply unit 300 has a function of causing the detergent solution to flow down into the washing tub 500. The water supply valve 310 switches the water path between a first path FP toward the first chamber 410 and the second chamber 420 and a second path SP toward the third chamber 430. In the present embodiment, even when the water pressure of the water supply supplied from the water supply port 200 changes, the water supply valve 310 supplies water to the first route FP or the second route SP in the range of 5 liters to 15 liters per minute. Supply. Note that the second path SP is not necessarily required. The principle of this embodiment is not limited at all by the second route SP.

  The flow path structure 320 defines a flow path for supplying water to the first chamber 410 and the second chamber 420 of the detergent case 400. When the water supply valve 310 opens the first path FP, water is supplied to the first chamber 410 and the second chamber 420 through the flow path structure unit 320. As a result, the powder detergent in the first chamber 410 and the liquid detergent in the second chamber 420 are mixed with water. The powder detergent and liquid detergent are supplied to the washing tub 500 together with water. The washing tub 500 can wash clothes by stirring clothes in an aqueous solution of powder detergent and liquid detergent.

  On the other hand, when the water supply valve 310 opens the second path SP, water is supplied to the third chamber 430. The finishing agent in the third chamber 430 is mixed with water. The finishing agent is supplied to the washing tub 500 together with water. The washing tub 500 can rinse the garment in an aqueous solution of a finish and impart the desired properties (eg, flexibility) to the garment.

<Structure of water supply unit>
FIG. 4 is a perspective view of the water supply unit 300 of the washing machine 100 according to the present embodiment. FIG. 5 is a perspective view of the water supply unit 300 in a state where a lid 340 described later is removed. FIG. 6 is an exploded perspective view of the housing 250 of the paper feeding unit 300. FIG. 7 is a top view of the water supply unit 300. 8A is an exploded perspective view of the detergent case 400 attached to the water supply unit 300, and FIG. 8B is a perspective view thereof. FIG. 9A is a top view of the water supply unit 300, and FIGS. 9B and 9C are cross-sectional views thereof. Note that the cross-sectional view of FIG. 9B corresponds to a view of FIG. 9A cut along a cross-section XX, and the cross-sectional view of FIG. 9C corresponds to a view of FIG. 9A cut along a cross-section YY. FIG. 10 is a cross-sectional perspective view of the water supply unit shown in FIG. 9C. FIG. 11A is a top view of a holding box 350 constituting the water supply unit 300, and FIG. 11B is a front view thereof. 12A is a top view of the state where the detergent case 400 is removed from the water supply unit 300 of FIG. 5, FIG. 12B is a front view thereof, and FIG. 12C is a cross-sectional view thereof. Note that the cross-sectional view of FIG. 12C corresponds to a view of FIG. 12A cut along a cross-section XX. FIG. 13 is a cross-sectional perspective view of the water supply unit 300. Hereinafter, the water supply unit 300 will be described with reference to FIGS. 4 to 13. 1 and 2, the entire water supply unit 300 does not appear, but the water supply unit 300 is accommodated in the upper housing 620 below the operation panel 800 of FIG. 2.

  The water supply unit 300 includes a housing 250. The housing 250 is a main body portion of the water supply unit 300 and has a substantially rectangular parallelepiped shape as shown in FIG. Further, the water supply unit 300 includes a first water guide tube 311, a second water guide tube 312, a third water guide tube 313, a bath water pump 314, and a lower part of the housing 250, which are respectively attached to the rear end of the housing 250. And a drainage path 550 (FIG. 5) attached to the. In the present embodiment, the discharge unit is exemplified by the drainage path 550.

  The first water conduit 311 may be an upstream end of the first path FP described with reference to FIG. The second water conduit 312 may be an upstream end of the second path SP described with reference to FIG. In the water supply unit 300, the third water guide tube 313 conducts water through a path different from the first water guide tube 311 and the second water guide tube 312. The water supply valve 310 described with reference to FIG. 3 is attached to the first water guide tube 311 and the second water guide tube 312. While the water supply valve 310 opens the first water guide tube 311, the second water guide tube 312 is closed. While the water supply valve 310 opens the second water guide tube 312, the first water guide tube 311 is closed. When a washing operation using a detergent is performed in the washing tub 500, the first water guide tube 311 is opened. Further, when the rinsing operation is performed in the washing tub 500, the second water guide tube 312 is opened. Note that when the rinsing operation is performed, the first water guide tube 311 and the second water guide tube 312 may be alternately opened.

  The bath water pump 314 is communicated with the first path FP. The bath water pump 314 is connected to a bath water supply port (not shown) and supplies bath water to the detergent case 400.

  The drainage channel 550 receives water or a detergent solution from the first flowing water portion 353 and the second flowing water portion 352 described later of the housing 250 and discharges them toward the washing tub 500. Referring to FIG. 13, the drainage path 550 includes a bellows portion 550A, a drainage port 550B, and a check valve 550C. The bellows portion 550 </ b> A is disposed in the upstream portion of the drainage path 550. The drain port 550B is disposed in the downstream portion of the drain channel 550, and water or detergent liquid is discharged downward. The drain outlet 550 </ b> B is disposed behind the washing tub cover 622 (FIG. 1) and communicates directly with the washing tub 500. The check valve 550C is a valve that can be opened and closed at the drain port 550B. When the drying operation is executed in the washing tub 500, the check valve 550C is closed by the pressure in the washing tub 500. On the other hand, when water is supplied from the water supply unit 300 toward the washing tub 500, the check valve 550C is opened by the pressure of the water. In the vicinity of the check valve 550C, the cross-sectional area is partially reduced in the water flow path. A stirring space 550S for stirring the detergent liquid is formed on the upstream side of the check valve 550C.

<Detailed structure of housing>
Referring to FIG. 6, the housing 250 includes a storage box 330 and a lid 340. The storage box 330 is disposed in a lower part of the housing 250. The lid 340 is disposed above the housing 250.

<Container box structure>
The detergent case 400 described with reference to FIG. 3 is stored in the storage box 330. The user can pull out the detergent case 400 from the storage box 330.

  The storage box 330 includes a holding box 350 and a flow path box 360. The storage box 330 includes a shared wall 361 shared by the holding box 350 and the flow path box 360. The shared wall 361 is composed of an inclined surface that descends from the rear toward the front. The shared wall 361 supports the water that has flowed into the flow path box 360. As shown in FIG. 6, the right side of the rear end portion of the shared wall 361 is partially cut away in order to arrange the water supply valve 310 and the like.

<Structure of flow path box>
The flow path box 360 includes the shared wall 361 described above, and defines the upper part of the storage box 330. The flow path structure 330 described with reference to FIG. 3 is formed integrally with the storage box 330. 6 and 7, the flow path box 360 includes a peripheral wall portion 362, a first inner wall 363, a second inner wall 364, a third inner wall 365, a fourth inner wall 366, and a protruding portion 367. Prepare.

  As shown in FIG. 7, the peripheral wall portion 362 is a wall portion extending along the outer peripheral edge inside the outer peripheral edge of the shared wall 361. The peripheral wall part 362 has a predetermined height and projects upward from the shared wall 361. The peripheral wall 362 extends endlessly so as to have a substantially rectangular shape when viewed from above, and a plurality of water channels are formed inside the peripheral wall 362.

  The inner wall from the first inner wall 363 to the fourth inner wall 366 is a wall portion extending in a region inside the peripheral wall portion 362. The first inner wall 363 is disposed at the left end portion in the region inside the peripheral wall portion 362. The first inner wall 363 extends from the rear toward the front, and the front end side is bent rearward and rightward. The second inner wall 364 is disposed along the first inner wall 363 on the right side of the first inner wall 363. The second inner wall 364 extends endlessly so as to have a substantially trapezoidal shape when viewed from above. The left and front wall portions of the second inner wall 364 extend in parallel with the first inner wall 363.

  The third inner wall 365 is a wall portion disposed at a substantially central portion of the shared wall 361. The third inner wall 365 extends endlessly so as to have a substantially rectangular shape when viewed from above. A third internal flow path 383 to be described later is formed inside the third inner wall 365. The left wall portion of the third inner wall 365 is connected to the right edge of the first inner wall 363 and the right wall portion of the second inner wall 364. The fourth inner wall 366 extends from the left to the right on the rear side of the second inner wall 364 and the third inner wall 365, and its right end is bent forward, and the front wall of the peripheral wall 362 It extends until it intersects with the section.

  The protruding portion 367 is disposed adjacent to the corner portion of the fourth inner wall 366. The projecting portion 367 is a projecting portion formed by partly sinking the shared wall 361 downward (see FIG. 6). A space portion extending in the vertical direction is formed inside the protruding portion 367.

  Further, the flow path box 360 includes a first hole 371, a second hole 372, a third hole 373, a fourth hole 374, a fifth hole 375, and a blowout port 376.

  The first hole 371 and the second hole 372 are holes formed so as to penetrate the shared wall 361 in the vertical direction between the first inner wall 363 and the second inner wall 364. The third hole portion 373 is a hole portion formed through the third inner wall 365 in the left-right direction between the first inner wall 363 and the second inner wall 364 (see FIG. 5). The fourth hole portion 374 is a hole portion that is formed through the shared wall 361 in the vertical direction at the rear end portion inside the third inner wall 365. The fifth hole portion 375 is a hole portion formed so as to penetrate the shared wall 361 in the vertical direction at the front end portion inside the third inner wall 365. In addition, the 4th hole part 374 and the 5th hole part 375 are each formed 3 each. The blowout port 376 is a hole opened toward the front side at the lower end of the protrusion 367. A pair of outlets 376 are arranged on the left and right (see FIG. 12C). The position of the blowout port 376 in the height direction is disposed above the water surface of the detergent liquid flowing in the first flowing water portion 353 and the second flowing water portion 352 described later. The cross-sectional perspective view shown in FIG. 13 corresponds to a cross-sectional view of the water supply unit 300 taken along the vertical plane passing through the right outlet 376 of the pair of outlets 376.

  Further, the flow path box 360 includes a first internal flow path 381, a second internal flow path 382, a third internal flow path 383, and a fourth internal flow path 384. The first internal flow path 381 to the third internal flow path 383 constitute the flow path structure 320 of the present embodiment.

  The first internal flow path 381 is a water channel formed on the left side of the flow path box 360. The first internal channel 381 pours water into the detergent case 400. The first inner flow path 381 is defined by the first inner wall 363 and the second inner wall 364, and guides water from the rear to the front and then to the right and rear (see arrows D71 and D72 in FIG. 7). The first hole 371 and the second hole 372 mentioned above pour water in the first internal flow path 381 into the first chamber 410 of the detergent case 400.

  The second internal flow path 382 is a water channel formed on the rear side of the flow path box 360. The second internal flow path 382 is branched from the first internal flow path 381, bypasses the detergent case 400, and injects water into the drainage path 550 described later. The second inner flow path 382 is defined by the second inner wall 364, the third inner wall 365, and the fourth inner wall 366, and guides water to the right (see arrow D74 in FIG. 7). Further, the downstream side of the second internal flow path 382 extends downward in the internal space of the protrusion 367.

  The third internal channel 383 is a water channel formed inside the second inner wall 364. The third internal channel 383 pours water into the detergent case 400. The third internal flow path 383 communicates with the first internal flow path 381 through the third hole 373, and water enters the third internal flow path 383 from the first internal flow path 381. (See arrow D73 in FIG. 7). The aforementioned fourth hole 374 and fifth hole 375 pour water in the third internal flow path 383 into the second chamber 420 of the detergent case 400. The fourth internal flow path 384 is a water channel formed between the fourth inner wall 366 and the peripheral wall portion 362.

<Structure of holding box>
With reference to FIG. 6, the holding box 350 defines a lower portion of the storage box 330. A case insertion portion 331 to which the detergent case 400 is attached is formed between the flow path box 360 and the holding box 350 (see FIG. 12B). The detergent case 400 is attached to the case insertion portion 331 toward the rear. For this reason, the front part of case insertion part 331 (holding box 350) is opened. Further, since the flow path box 360 is attached to the holding box 350, an upper portion of the holding box 350 is also opened. A detergent solution or water flows into the holding box 350 from the flow path box 360 or the detergent case 400. And in this embodiment, the lower part of the holding box 350 functions as a flowing water part. In the present embodiment, the mounting portion is exemplified by the case insertion portion 331.

  6 and 11A and 11B, the holding box 350 includes a right wall 350A, a left wall 350B, a rear wall 350C, a first bottom portion 350D, a front edge portion 350E, and an intermediate wall portion 350F. The second bottom 350G and the left support 350H are provided.

  The right wall 350A and the left wall 350B are the right and left side walls of the holding box 350, respectively. The rear wall 350C is a rear wall portion of the holding box 350 and connects the rear end portions of the right wall 350A and the left wall 350B. The first bottom portion 350 </ b> D is a bottom portion formed on the front side of the holding box 350. The front edge portion 350 </ b> E is an edge that forms an opening on the front side of the holding box 350. The second bottom portion 350 </ b> G is a bottom portion formed on the rear side of the holding box 350. The second bottom 350G is disposed below the first bottom 350D so that the bottom of the holding box 350 has a step. Note that the check valve 550C of the drainage path 550 is disposed below the second bottom portion 350G (see FIG. 13).

  The intermediate wall portion 350F is a side wall that connects the first bottom portion 350D and the second bottom portion 350G in the vertical direction. The left support 350H is a part of the first bottom 350D and is connected to the lower end of the left wall 350B. The left support part 350H supports the detergent case 400 together with the right end part of the first bottom part 350D.

  Furthermore, the holding box 350 includes a partition plate 351, a first flowing water part 353, a second flowing water part 352, a holding box discharge port 354, and a pin 355. In this embodiment, the flowing water part is exemplified by a first flowing water part 353 and a second flowing water part 352. In the present embodiment, the discharge port is exemplified by the holding box discharge port 354.

  The partition plate 351 is a plate-like member protruding upward from the first bottom portion 350D and the second bottom portion 350G. The partition plate 351 has a function of partitioning the first flowing water part 353 and the second flowing water part 352. The partition plate 351 includes a first partition 351A, a second partition 351B, a third partition 351C, and a fourth partition 351D. The first partition 351A is disposed along the front edge 350E at the left end of the first bottom 350D. The second partition 351B extends rearward from the right end of the first partition 351A. The third partition 351C extends rightward from the rear end of the second partition 351B. The fourth partition 351D extends forward from the right end of the third partition 351C. Note that the front end portion of the fourth partition portion 351D is in contact with the intermediate wall portion 350F (FIGS. 11A and 11B).

  The second flowing water portion 352 is a space portion formed on the front side (the rear end side in the mounting direction of the detergent case 400) of the bottom portion of the holding box 350. The detergent liquid flows into the second flowing water portion 352 from the second chamber 420 of the detergent case 400. The first flowing water portion 353 is a space portion formed on the rear side (the front end side in the mounting direction of the detergent case 400) of the bottom portion of the holding box 350. The detergent liquid flows into the first flowing water portion 353 from the first chamber 410 and the second chamber 420 of the detergent case 400. The water flowing into the first flowing water portion 353 and the second flowing water portion 352 moves toward the right portion of the second bottom portion 350G (arrows D111 and D112 in FIG. 11A), and the second bottom portion 350G is provided with a gradient. It has been.

  Referring to FIG. 11B, the holding box discharge port 354 is a circular opening that is opened at the right end of the intermediate wall 350F. The holding box discharge port 354 is connected to the bellows portion 550 </ b> A of the drainage path 550 described above. The water (detergent liquid) in the first flowing water portion 353 and the second flowing water portion 352 is discharged from the holding box discharge port 354 toward the drainage path 550. As shown in FIG. 11A, the front end portion of the fourth partition portion 351D of the partition plate 351 is connected to the intermediate wall portion 350F so as to face the holding box discharge port 354. For this reason, the 1st flowing water part 353 and the 2nd flowing water part 352 merge in the drainage channel 550. In particular, in this embodiment, as shown in FIG. 11B, when the holding box discharge port 354 is viewed from the drainage path 550 side, the cross-sectional area of the holding box discharge port 354 on the first flowing water portion 353 side and the second flowing water portion 352. The fourth partition portion 351D is arranged so that the cross-sectional areas on the sides are substantially the same. In particular, in this embodiment, the holding box discharge port 354 is equally divided into a semicircular shape by the fourth partition 351D. In addition, it is not necessarily limited to the aspect in which the cross-sectional areas of the divided | segmented area | regions correspond that the holding box discharge port 354 is divided | segmented equally. It is only necessary to secure the cross-sectional areas of the divided regions so that the detergent liquid is stably discharged from the first flowing water portion 353 and the second flowing water portion 352.

  Moreover, the lower end part of the above-mentioned protrusion part 367 is arrange | positioned above predetermined intervals rather than the upper end edge of 4th partition part 351D (FIG. 12C). And a pair of blower outlets 376 opened by the protrusion part 367 are each located in the left and the right with respect to 4th partition part 351D.

  The pins 355 are a plurality of protrusions protruding from the second bottom portion 350G on the downstream side of the first flowing water portion 353. A plurality of pins 355 are arranged adjacent to each other in the front-rear and left-right directions on the right side of the fourth partition 351D. The plurality of pins 355 partially restrict the flow of the detergent liquid from the first flowing water portion 353 toward the drainage path 550.

<Structure of the lid>
Referring to FIG. 6, lid portion 340 faces shared wall 361 of flow path box 360. The peripheral wall portion 362, the first inner wall 363 to the fourth inner wall 366 are erected between the lid portion 340 and the shared wall 361, and form the first inner flow path 381 to the fourth inner flow path 384 described above. . The flow channel structure 320 described with reference to FIG. 3 includes a lid 340, a flow channel box 360, a first water conduit 361, and a second water conduit 362. The designer may adjust the flow resistance in the flow path box by giving various shapes to the lid. The lid design technique is described below.

  The lid 340 is a plate-like member that extends in the front-rear and left-right directions. The lid part 340 includes a first lid part channel 341 and a second lid part channel 342. The first lid part channel 341 and the second lid part channel 342 are formed by partially sunk the rear end of the lid part 340 upward. The first lid channel 341 and the second lid channel 342 form a substantially L-shaped channel of water when viewed from above. The lower surface of the lid portion 340 may be welded to the upper edge of the peripheral wall portion 362 and the first inner wall 363 to the fourth inner wall 366 by an ultrasonic technique.

<Structure of detergent case>
With reference to FIG. 8, the detergent case 400 includes the handle portion 440, the first partition wall 411, the second partition wall 421, and the third partition wall 431. The user can grasp the handle portion 440 and pull out the detergent case 400 from the case insertion portion 331 (FIG. 12B). The first partition wall 411 partitions the first chamber 410 that opens upward. An input opening 412 is formed in the upper part of the first partition wall 411. The user can pull out the detergent case 400 from the storage space 352 and supply the detergent to the first chamber 410 from the input opening 412. The second partition wall 421 partitions the second chamber 420 that opens upward. The third partition wall 431 partitions the third chamber 430 that opens upward.

  The detergent case 400 further includes a first siphon lid 422 and a second siphon lid 432. The first siphon lid 422 is used for discharging water from the second chamber 420. The second siphon lid 431 is used for discharging water from the third chamber 430.

  The first siphon lid 422 includes a first lid plate 423, a first outer cylinder 424, and a first insertion port 425. The first lid plate 423 covers the upper side of the second chamber 420. The first outer cylinder 424 is a cylindrical portion that protrudes downward from the rear side of the first lid plate 423. The first insertion port 425 is an opening that is opened on the front side of the first lid plate 423.

  The second partition wall 421 includes a first bottom plate 426 and a first inner cylinder 427. The first bottom plate 426 faces the first lid plate 423 of the first siphon lid 422. The first inner cylinder 427 protrudes upward from the first bottom plate 426. As shown in FIG. 8B, when the first siphon lid 422 partially closes the second chamber 420, the first inner cylinder 427 is inserted into the first outer cylinder 424 to form a siphon structure. The liquid in the second chamber 420 flows into the gap between the first inner cylinder 427 and the first outer cylinder 424 in accordance with the siphon principle. Thereafter, the liquid flows down in the first inner cylinder 427 and is discharged from the detergent case 400.

  The second siphon lid 432 includes a second lid plate 433, a second outer cylinder 434, and a second inlet 435. The second lid plate 433 covers the upper part of the third chamber 430. The second outer cylinder 434 is a cylindrical portion that protrudes downward from the rear side of the second lid plate 433. The second insertion port 435 is an opening that is opened on the front side of the second lid plate 433.

  The third partition wall 431 includes a second bottom plate 436 and a second inner cylinder 437. The second bottom plate 436 faces the second lid plate 433 of the second siphon lid 432. The second inner cylinder 437 is a cylindrical portion that protrudes upward from the second bottom plate 436 (see FIG. 13). As shown in FIG. 8B, when the second siphon lid 432 partially closes the third chamber 430, the second inner cylinder 437 is inserted into the second outer cylinder 434 to form a siphon structure. The liquid in the third chamber 430 flows into the gap between the second inner cylinder 437 and the second outer cylinder 434 according to the siphon principle. Thereafter, the liquid flows down in the second inner cylinder 437 and is discharged from the detergent case 400.

  Referring to FIG. 8B, the user pulls out the detergent case 400 from the case insertion portion 331 (FIG. 12B), and supplies the liquid detergent from the first input port 425 to the second chamber 420 partitioned by the second partition wall 421. Can be supplied. In addition, the user can pull out the detergent case 400 from the case insertion portion 331 and supply the finishing agent from the second input port 435 to the third chamber 430 defined by the third partition wall 431.

<About the flow of water>
Hereinafter, the flow of water in the washing machine 100 will be further described with reference to FIGS. 3 to 13. In the washing tub 500, the washing operation of the clothes is performed by the detergent liquid containing the detergent. At this time, the first water guide tube 311 is opened, and water flows into the first path FP. Specifically, the water flowing in from the first water guide tube 311 flows upward from the first internal water inlet 381A (FIGS. 6 and 7) formed at the rear end of the flow path box 360. It enters the first lid portion water inlet 341A (FIG. 6) of the path 341. After water flows through the first lid channel 341, the water flows downward from the first lid outlet 341B (FIG. 6) to the first internal water inlet 381B (FIG. 7) of the first internal channel 381. Inflow. Thereafter, the water flows forward through the first internal channel 381 (arrow D71 in FIG. 7). At this time, some water falls downward from the first hole 371 and the second hole 372 (arrows D91 and D92 in FIG. 9B) and enters the first chamber 410 of the detergent case 400. Then, the powder detergent accommodated in the first chamber 410 is dissolved, and a detergent liquid is generated in the first chamber 410.

  On the other hand, referring to FIG. 7, in the first internal channel 381, the water that has passed through the first hole 371 and the second hole 372 proceeds further to the right in the first internal channel 381 (see FIG. 7). 7 arrow D72), the third hole 373 enters the third internal channel 383. Thereafter, water falls downward from the fourth hole portion 374 and the fifth hole portion 375 (arrows D101 and D102 in FIG. 10) and enters the second chamber 420. The water that has dropped from the fifth hole 375 flows into the second chamber 420 while passing through the first inlet 425. Then, the liquid detergent stored in the second chamber 420 is dissolved, and a detergent liquid is generated in the second chamber 420.

  Moreover, in this embodiment, even if the flow rate of the water supplied from the water supply valve 310 (FIG. 2) is the lower limit of 5 liters per minute, the flow rate of water flowing into the detergent case 400 from each hole is The shape and position of each hole of the flow path box 360 are set so as to be 0.3 meters per second. Further, in order to stably dissolve the detergent, the first detergent is accommodated in a radius of 30 mm around the dropping point of the water falling from the first hole 371 and the second hole 372. A chamber 410 is disposed.

  When the first chamber 410 is filled with the detergent liquid, the detergent liquid overflows backward from the rear end edge of the first partition wall 411 (arrow D81 in FIG. 8, arrow D93 in FIG. 9B). A gap is formed in advance between the rear end edge of the first partition wall 411 and the rear wall 350C (FIG. 6) of the holding box 350. The detergent liquid overflowing from the first partition wall 411 enters the first flowing water portion 353 (FIG. 11) behind the partition plate 351 of the holding box 350 and then enters the holding box discharge port 354 along the partition plate 351. It flows toward (arrow D111 in FIG. 11).

  When the cleaning liquid starts to be stored in the second chamber 420, the cleaning liquid falls downward from the first inner cylinder 427 by the siphon effect of the first outer cylinder 424 and the first inner cylinder 427 (arrow D103 in FIG. 10). . At this time, the detergent liquid enters the second flowing water portion 352 (FIG. 11) in front of the partition plate 351 of the holding box 350 and then flows toward the holding box discharge port 354 along the partition plate 351 (FIG. 11). Arrow D112).

  Further, while the cleaning liquid falls from the first inner cylinder 427, when water further enters the second chamber 420 from the fourth hole portion 374 and the fifth hole portion 375, the second chamber 420 is filled with the detergent liquid. As a result, a part of the cleaning liquid overflows rearward from the rear end edge of the second partition wall 421 (arrow D82 in FIG. 8, arrow D104 in FIG. 10). A gap is also formed in advance between the rear edge of the second partition wall 421 and the rear wall 350C (FIG. 6) of the holding box 350 (see FIG. 10). The detergent liquid overflowing from the second partition wall 421 enters the first flowing water portion 353 (FIG. 11) of the holding box 350, and then enters the partition plate 351 together with the detergent liquid of the powder detergent overflowing from the first partition wall 411. And flows toward the holding box discharge port 354 (arrow D111 in FIG. 11).

  With reference to FIGS. 11A and 13, the detergent liquid that has reached the holding box discharge port 354 from the second flowing water portion 352 flows into the drainage path 550. On the other hand, the detergent solution from the first flowing water portion 353 to the holding box discharge port 354 passes between the plurality of pins 355 immediately before the holding box discharge port 354. At this time, the detergent liquid flows into the drainage passage 550 while the stirring of the detergent liquid is promoted. In particular, the detergent liquid flowing through the first flowing water portion 353 contains a powder detergent. For this reason, the pin 355 further accelerates the dissolution of the powder detergent. Further, since the pin 355 temporarily prevents the flow of the detergent liquid, even when a large amount of the detergent liquid flows into the first flowing water portion 353 from the first chamber 410 and the second chamber 420, these detergent liquids Supply to the washing tub 500 without being sufficiently stirred is suppressed.

  Since the detergent liquid that has flowed into the drainage passage 550 temporarily stays around the check valve 550C having a partially reduced cross-sectional area, a detergent liquid retention portion is formed in the stirring space 550S.

  Returning to FIG. 7, in the present embodiment, a part of the water that has flowed into the first internal flow path 381 from the first internal water inlet 381B passes through the second internal flow path 382 (arrow D74 in FIG. 7). Then, the detergent case 400 is bypassed and falls inside the protrusion 367 (arrow D131 in FIG. 13). Then, these waters are ejected downward and forward from a pair of outlets 376 opened at the lower end of the projecting portion 367. At this time, in this embodiment, water is ejected toward the detergent liquid staying in the stirring space 550S (arrow D132 in FIG. 13). Therefore, before flowing into the washing tub 500, the detergent solution is strongly stirred and foamed in the drainage channel 550. Further, since the detergent liquid staying in the stirring space 550S is pushed into the washing tub 500 side by the water pressure of the water ejected from the nozzle-like outlet 376, the detergent liquid and bubbles staying in the stirring space 550S are moved to the holding box 350 side. Backflow is suppressed. Further, since the detergent liquid bubbles in the drainage passage 550 on the downstream side of the holding box 350, the inside of the holding box 350 is prevented from being filled with many bubbles.

  Moreover, in this embodiment, since a detergent liquid is stirred with the water branched as mentioned above, it is not necessary to provide a drive part (motor) for exclusive use in order to produce | generate and stir a detergent liquid. Further, compared to a case where a large amount of water flows into the detergent case 400 and the detergent is stirred in the detergent case 400, water leakage from the water supply unit 300 is prevented. As a result, the water supply unit 300 becomes compact and water leakage as described above is suppressed.

  The flow rate of water ejected from the outlet 376 is mainly determined by the amount of water stored in the internal space of the protrusion 367. Therefore, even when the flow rate of tap water supplied from the water supply valve 310 fluctuates, a stable stirring force is given to the detergent liquid in the stirring space 550S. Further, since the detergent liquid is stirred by the force of the water jetted linearly, a large amount of water is not consumed for the stirring function.

  The pair of blowout ports 376 blows out water toward the first flowing water portion 353 side and the second flowing water portion 352 side with respect to the fourth partition portion 351D of the partition plate 351. (Arrow D132 in FIG. 13). For this reason, the detergent liquid which flows into the drainage path 550 from the 1st flowing water part 353 and the 2nd flowing water part 352 is each stirred stably.

  In the present embodiment, as described above, a part of the water flowing into the flow channel structure 320 from the first path FP (FIG. 1) is diverted from the first internal flow channel 381 to the second internal flow channel 382. Is done. In the present embodiment, as an example, when the flow rate of water supplied from the water supply valve 310 (FIG. 2) is the upper limit of 15 liters per minute, the first internal flow path 381 to the second internal flow path 382 side. The flow rate of flowing water is 7 liters per minute. On the other hand, the amount of water that continues to flow through the first internal channel 381 is 4 liters per minute. In addition, the priming water flowing to the bath water pump 314 (FIG. 4) is 2 liters per minute, and the water flowing to a heat exchanger (not shown) in the washing machine 100 is 2 liters per minute. Therefore, the flow rate of water flowing downstream of the first internal channel 381 is smaller than the flow rate of water flowing into the second internal channel 382. For this reason, since the time for supplying water to the washing tub 500 is shortened, water is supplied from the periphery of the detergent case 400 even when the flow rate of water flowing from the water supply unit 300 into the washing tub 500 is set large. Water is prevented from leaking from the outside of the unit 300, particularly from the front surface of the housing 250.

  Furthermore, in this embodiment, as described above, the partition plate 351 partitions the flowing water part in the flow path box 360 into two (first flowing water part 353 and second flowing water part 352). For this reason, the water level of the detergent liquid in the first flowing water part 353 and the second flowing water part 352 rises, and the height h (FIG. 13) of the detergent liquid with respect to the check valve 550C is set high. When the cross-sectional area of the water channel in the check valve 550C is s and the gravitational acceleration is g, the flow velocity v (m / sec) of the detergent liquid passing through the check valve 550C is v = (2 × g × h) Determined by 0.5. Further, the flow rate Q (m3 / sec) of the detergent liquid passing through the check valve 550C is determined by Q = s × v. In the present embodiment, the shape, performance, arrangement, and the like of each member of the water supply unit 300 are set so that Q = 6 liters per minute.

  In this manner, the partition plate 351 ensures the height of the water surface of the detergent solution. For this reason, a stable flow is formed from the first flowing water portion 353 and the second flowing water portion 352 toward the drainage path 550, and the backflow of the detergent liquid is prevented. In addition, since the water surface is raised inside the flowing water portion of the holding box 350 and the detergent liquid is caused to flow by the water ejected from the outlet 376, the second bottom portion of the holding box 350 with respect to the check valve 550C. There is no need to place 350G at a higher position. Therefore, the water supply unit 300 is set to be compact in the vertical direction.

  Further, as described above, since the first flowing water part 353 and the second flowing water part 352 merge in the drainage path 550, even if the water levels of the both are different, the flowing water part from one flowing part to the other flowing water part It is possible to prevent the detergent liquid from flowing backward. Further, since the partition plate 351 divides the holding box discharge port 354 into approximately half, the drainage path can be stably from the flowing water part having the lower water surface of the first flowing water part 353 and the second flowing water part 352. Detergent liquid can flow into 550.

  In particular, in the present embodiment, as described above, the detergent liquid overflowing from the rear side of the first chamber 410 and the second chamber 420 flows into the first flowing water portion 353, and from the first inner cylinder 427 of the second chamber 420. The detergent liquid flows into the second flowing water part 352. In this embodiment, when the flow rate of water supplied from the water supply valve 310 (FIG. 2) is 15 liters per minute, which is the upper limit, water is supplied to the first chamber 410 and the second chamber 420 by 2 liters per minute. Inflow. For this reason, the flow rate of the detergent liquid flowing from the detergent case 400 to the front second flowing water part 352 is smaller than the flow rate of the detergent liquid flowing from the detergent case 400 to the first flowing water part 353 behind. Moreover, since the 1st inner cylinder 427 and the 1st outer cylinder 424 consist of siphon structures, the upper limit of the flow volume of the detergent liquid to the 2nd flowing water part 352 is substantially fixed. Therefore, the detergent liquid is particularly prevented from leaking from the opening side (front side) of the case insertion portion 331.

  In the washing tub 500, when the rinsing operation of the clothes is performed with the water containing the finishing agent, the second water guide tube 312 is opened, and the water flows into the second path SP (FIG. 3). Specifically, the water flowing in from the second water guide cylinder 312 flows upward from the second internal water inlet 384A (FIGS. 6 and 7) formed at the rear end of the flow path box 360. It enters the second lid portion water inlet 342A (FIG. 6) of the path 342. After the water flows through the second lid channel 342, the water flows downward from the second lid outlet 342B (FIG. 6) to the second internal water inlet 384B (FIG. 7) of the fourth internal channel 384. Inflow. Thereafter, the water flows forward through the fourth internal flow path 384 and falls downward from a hole (not shown) formed in the fourth internal flow path 384. Then, the water that has entered the third chamber 430 of the detergent case 400 includes a finishing agent and falls from the second inner cylinder 437 due to the siphon effect. Thereafter, the dropped water flows into the drainage path 550 through the holding box discharge port 354 and is supplied to the washing tub 500.

  In addition, since the detergent is stored in the range of a radius of 30 mm from the drop point of the water from the first hole 371 and the second hole 372, the flow rate of water supplied from the water supply valve 310 is 5 liters per minute, which is the lower limit. Even in this case, the detergent is stably dissolved. As a result, the remaining detergent in the detergent case 400 is suppressed. Similarly, when the flow rate of supplied water is the lower limit of 5 liters per minute, the flow rate of water flowing from the first hole 371, the second hole 372, the fourth hole 374, and the fifth hole 375 is It is set to 0.3 meters per second. As a result, even when the supplied water flow rate is 15 liters per minute, the flow rate of water flowing from the first hole 371, the second hole 372, the fourth hole 374, and the fifth hole 375 is the second. Limited to 0.9 meters. Therefore, the generation of a large amount of bubbles in the detergent case 400 is suppressed by the momentum of the water falling from these holes. For this reason, it is prevented that foam water overflows from case insertion part 331.

  As mentioned above, although the washing machine 100 which concerns on embodiment of this invention was demonstrated, this invention is not limited to this, For example, the following modified embodiment is employable.

  (1) In the above embodiment, the pin 355 is used as the restricting member, but the present invention is not limited to this. A mesh member may be disposed in the flow path of the water flow instead of the pin 355. As the detergent liquid passes through the opening of the mesh, stirring of the detergent liquid is promoted. A plurality of mesh members may be arranged along the flow of water.

  (2) In the above embodiment, the embodiment has been described in which water flows from the first internal flow path 381 into the first chamber 410 and the second chamber 420, but the present invention is not limited to this. . Detergent liquid is formed by water flowing into the first chamber 410 or the second chamber 420 from the first internal flow path 381, and water is ejected from the outlet 376 of the second internal flow path 382 to the detergent liquid. It may be an embodiment.

  The principle of this embodiment is suitably used for various devices having a washing function.

100 ... Washing machine 200 ... Water inlet 250 ... ... Housing 300 ... Water Supply Unit 310 ... Water Supply Valve 320 ...・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Channel structure 330 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Container box 331 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・・ Case insertion part 340 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Lid 350 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Retaining box 351 ・ ・ ・ ・ ・ ・··········· Partition plate 351A ································································ Part 351C ... 3rd partition 351D ... ············ 4th partition 352 ·························· 2・ First running water part 354 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Retention box outlet 355 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Pin 360 ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Channel box 367 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Projection 371 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・1st hole 372 ... 2nd hole 373 ... 3rd hole 374 ... ... 4th hole 375 ... 5th hole 376 ... ... Blowout port 381 ... 1st internal flow path 382 ...・ ・ 2nd internal flow path 383 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ 3rd internal flow path 384 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ 4th internal flow Road 400 ... Detergent case 410 ... First chamber 420 ... 2nd chamber 430 3rd chamber 440 ·········································· 5 ... bellows part 550B ... drainage port 550C ... check valve 550S ... ... Stirring space 600 ... Casing 621 ...・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Inlet 622 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Laundry tub cover 700・ Cover body

Claims (4)

A detergent case that contains the detergent;
A washing tub for performing washing operations for washing clothes;
A water supply unit that causes water or a detergent solution containing the detergent to flow down into the washing tub;
Have
The water supply unit is
A mounting portion on which the detergent case is mounted in a predetermined mounting direction;
A flow path structure part that is disposed above the mounting part and defines a flow path for supplying water to the detergent case;
A flowing water part that is disposed below the mounting part and into which the detergent liquid flows from the detergent case,
A discharge part communicating with the water flow part and discharging the detergent liquid toward the washing tub;
The running water part is
A first flowing water portion into which the detergent liquid flows from the detergent case;
A second flowing water part that is disposed on the rear end side in the mounting direction from the first flowing water part, and into which the detergent liquid flows from the detergent case;
A washing machine comprising: a partition plate that partitions the first flowing water portion and the second flowing water portion.   The flow rate of the detergent liquid which flows into the said 2nd flowing water part from the said detergent case is smaller than the flow volume of the detergent liquid which flows into the said 1st flowing water part from the said detergent case. Washing machine. The flowing water part further includes a discharge port connected to the discharge part,
The end part of the said partition plate is arrange | positioned facing the said discharge port so that the said 1st flowing water part and the said 2nd flowing water part merge in the said discharge part, The Claim 1 or 2 characterized by the above-mentioned. The washing machine described. When the discharge port is viewed from the discharge unit side, the end of the partition plate is arranged so that the cross-sectional area of the discharge port on the first flowing water unit side and the cross-sectional area on the second flowing water unit side are equal. The washing machine according to claim 3, wherein the portion is arranged.

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