CN115768937B - Washing machine - Google Patents
Washing machine Download PDFInfo
- Publication number
- CN115768937B CN115768937B CN202180046451.7A CN202180046451A CN115768937B CN 115768937 B CN115768937 B CN 115768937B CN 202180046451 A CN202180046451 A CN 202180046451A CN 115768937 B CN115768937 B CN 115768937B
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- Prior art keywords
- water
- storage space
- baffle plate
- tub
- space
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- 238000005406 washing Methods 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 247
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 69
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 abstract description 46
- 238000006297 dehydration reaction Methods 0.000 abstract description 46
- 230000001133 acceleration Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Classifications
-
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
-
- 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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
A washing machine capable of efficiently discharging water dehydrated from laundry in a washing tub to the outside of the dehydration tub during dehydration, comprising: a dewatering barrel, the bottom of which is provided with a pulsator, and the inner circumferential surface of which is provided with a plurality of water holes; three or more baffles arranged on the inner circumferential surface of the dewatering barrel at equal intervals in the circumferential direction; and a water injection device capable of injecting the adjustment water into each baffle independently, wherein a water receiving plate protruding radially inward from the outer side wall of the baffle is formed in the baffle, and the baffle comprises: the water storage space is arranged above the water receiving plate and used for storing and adjusting water; and a drain space disposed below the water receiving plate, wherein the circumferential length of the water storage space is longer than the circumferential length of the drain space, the inner circumferential surface of the water storage space has an inclined surface inclined so as to be disposed radially outward as going downward, and water holes are disposed in both circumferential side regions of the drain space in the dewatering tub.
Description
Technical Field
The present invention relates to a washing machine capable of eliminating unbalance of a dewatering barrel in a state that rotation of the dewatering barrel is continuous to restrain vibration and noise caused by eccentricity of the dewatering barrel during dewatering.
Background
A general washing machine installed in a general home, a laundromat, or the like has a dehydration tub having a plurality of water holes formed in an inner circumferential surface. Therefore, water dehydrated from the laundry in the dehydration tub during dehydration is discharged to the outside of the dehydration tub through the plurality of water passing holes. In addition, when the bias of the laundry is large during the dewatering, the eccentricity of the dewatering tub during the rotation is large, and the rotation requires a large torque, so that the dewatering operation cannot be started.
Accordingly, patent document 1 discloses the following technique: when the laundry is dehydrated, the unbalance amount and the unbalance position of the laundry in the washing tub are detected, and when the unbalance exists, water is injected into a plurality of baffle plates uniformly arranged in the circumferential direction of the dehydrating tub, thereby actively eliminating the unbalance state of the dehydrating tub.
In the washing machine of patent document 1, since a plurality of baffles are provided on the inner peripheral surface of the dewatering tub, there is a problem in that the area of the inlet of the dewatering tub and the volume in the dewatering tub become small. As a method for overcoming this problem while maintaining the water injection amount into the baffle, it is conceivable to thin the thickness of the baffle and widen the baffle in the circumferential direction in accordance therewith. However, when the baffle plate is widened in the circumferential direction, the number of water passage holes formed in the inner circumferential surface of the dewatering tub is reduced, and therefore, water dehydrated from the laundry in the dewatering tub cannot be efficiently discharged to the outside of the dewatering tub through the water passage holes during dewatering.
Prior art literature
Patent literature
Patent document 1: japanese patent application laid-open No. 2017-56025
Disclosure of Invention
Problems to be solved by the invention
The invention provides a washing machine capable of efficiently discharging water dehydrated from a washing material in a washing tub to the outside of the dehydration tub during dehydration.
Solution for solving the problem
The washing machine of the present invention is characterized by comprising: a dewatering barrel, the bottom of which is provided with a pulsator, and the inner circumferential surface of which is provided with a plurality of water through holes; three or more baffles arranged at equal intervals in the circumferential direction on the inner circumferential surface of the dewatering barrel; and a water injection device capable of injecting the adjustment water independently into each baffle plate, wherein a water receiving plate protruding from the outer side wall of the baffle plate to the radial inner side is formed in the baffle plate, and the baffle plate comprises: a water storage space arranged above the water receiving plate for storing the regulated water; and a drain space disposed below the water receiving plate, wherein the drain space is configured to drain the regulated water flowing out from the water storage space, the circumferential length of the water storage space is longer than the circumferential length of the drain space, the inner circumferential surface of the water storage space is provided with an inclined surface inclined so as to be disposed radially outward as going downward, and the water through holes are disposed in both circumferential side regions of the drain space in the dewatering tub.
In the washing machine of the present invention, it is preferable that a diversion portion for diverting water to both sides in the circumferential direction of the drain space is formed near a lower end portion of the inner peripheral surface of the water storage space.
In the washing machine of the present invention, it is preferable that the opening area of the water passage hole formed in the drain space in the dewatering tub is smaller from top to bottom.
In the washing machine of the present invention, it is preferable that a gap is formed between an inner peripheral surface of the dewatering tub and a rear surface of the baffle plate, and the water passage hole is provided in a portion of the inner peripheral surface of the dewatering tub facing the rear surface of the baffle plate.
Effects of the invention
According to the present invention, since the inner peripheral surface of the water storage space of the baffle plate has the inclined surface inclined so as to be disposed radially outward as going downward, even when the baffle plate is widened in the circumferential direction, water dehydrated from the laundry in the dehydration tub is guided downward in the water storage space at the time of dehydration. In this way, since the water through hole is arranged below the water storage space, the water dehydrated from the laundry is efficiently discharged to the outside of the dehydration tub. Therefore, the dehydration can be smoothly performed at the time of dehydration. Further, since the water dehydrated from the laundry is intensively discharged from the lower portion of the dehydration tub, the discharged water is not easily accumulated between the outer tub and the dehydration tub, and can be smoothly guided to the drain hole of the outer tub.
According to the present invention, since the diversion portion for diverting the water to both sides in the circumferential direction of the drainage space is formed in the vicinity of the lower end portion of the inner peripheral surface of the water storage space, the water dehydrated from the laundry can be guided to the water passage hole arranged below the water storage space, and the water can be drained more smoothly.
According to the present invention, the opening area of the water passage holes formed in the circumferential both side regions of the drainage space in the dewatering tub becomes smaller from the upper side to the lower side, so that it is possible to drain water more smoothly at the time of dewatering.
According to the present invention, water dehydrated from laundry in the dehydration tub during dehydration is wound around the rear surface side from the left and right end portions of the baffle plate, and is efficiently discharged from the water through holes to the outside of the dehydration tub through the gap between the inner peripheral surface of the dehydration tub and the rear surface of the baffle plate.
Drawings
Fig. 1 is a perspective view showing an external appearance of a washing machine 1 according to a first embodiment of the present invention.
Fig. 2 is a schematic view showing the structure of the washing machine 1 of fig. 1.
Fig. 3 is a partial plan view of the washing machine 1 of fig. 1, viewed from above.
Fig. 4 is a cross-sectional view of the dehydration tub 2 provided in the washing machine 1 of fig. 1.
Fig. 5 (a) is a view of the baffle plate 8 formed on the inner peripheral surface 2a1 of the dewatering tub 2 as viewed from the inner peripheral side, and fig. 5 (b) is a view of fig. 5 (a) 1 －a 1 A cross-sectional view taken along line (c) of FIG. 5 is a of FIG. 5 (a) 2 －a 2 Cross section at lineA drawing.
Fig. 6 is a block diagram of an electrical system of the washing machine 1 of fig. 1.
Fig. 7 (a) is a view of a baffle plate 8 formed on an inner peripheral surface 2a1 of a dewatering tub 2 of a washing machine according to a second embodiment of the present invention, as viewed from an inner peripheral side, and fig. 7 (b) is a view of fig. 7 (a) 1 －a 1 A cross-sectional view taken along line (c) of FIG. 7 is a of FIG. 7 (a) 2 －a 2 A cross-sectional view taken along line (d) of FIG. 7 is a of FIG. 7 (a) 3 －a 3 A cross-sectional view at line.
Fig. 8 (a) is a view of a baffle plate 8 formed on an inner peripheral surface 2a1 of a dewatering tub 2 of a washing machine according to a third embodiment of the present invention as seen from an inner peripheral side, and fig. 8 (b) is a schematic view of the dewatering tub 2.
Description of the reference numerals
1: a washing machine; 2: a dehydration barrel; 2c: the bottom of the dewatering barrel; 2t: a water through hole; 4: a pulsator; 8: a baffle plate; 8Ta: a water storage space; 8Tb: a drainage space; 8Tc: a split flow section; 30: a water injection device; 85: a water receiving plate; a: an inclined surface.
Detailed Description
Hereinafter, the washing machine 1 according to the embodiment of the present invention will be described in detail with reference to the drawings.
(first embodiment)
Fig. 1 is a perspective view showing an external appearance of a vertical washing machine (hereinafter, referred to as "washing machine") 1 according to a first embodiment of the present invention. Fig. 2 is a schematic diagram showing the structure of the washing machine 1 according to the present embodiment. Fig. 3 is a partial plan view of the washing machine 1 according to the present embodiment as viewed from above. Fig. 4 is a cross-sectional view of the dewatering tub 2 included in the washing machine 1.
The washing machine 1 of the present embodiment includes: the washing machine includes a washing machine main body 1a, a dewatering tub 2, an outer tub 3, a water receiving ring unit 5, a water injection device 30 (nozzle unit), a driving part 50, and a control unit 60 (see fig. 6).
The washing machine main body 1a shown in fig. 1 has a substantially rectangular parallelepiped shape. An opening 11 for allowing laundry to enter and exit the spin basket 2 is formed in the upper surface of the washing machine main body 1a, and an opening/closing cover 11a capable of opening and closing the opening 11 is attached.
The outer tub 3 is a bottomed tubular member disposed inside the washing machine main body 1a, and can store washing water therein. A drain port 10 is formed in the bottom surface of the outer tub 3, and a drain pipe 10a is connected to the drain port 10. As shown in fig. 2, an acceleration sensor 56 capable of detecting acceleration in both the horizontal and vertical directions is attached to the outer peripheral surface 3a of the outer tub 3.
The dewatering tub 2 is a bottomed tubular member rotatably supported in the outer tub 3 coaxially with the outer tub 3. The dewatering tub 2 is capable of accommodating laundry therein, and has a wall surface 2a provided with a plurality of water through holes 2t (see fig. 5 a).
A pulsator (stirring blade) 4 is rotatably disposed in the center of the bottom 2c of the dewatering tub 2. As shown in fig. 2, the pulsator 4 has: a substantially disk-shaped pulsator body 4a, a plurality of upper blade portions 4b formed on an upper surface of the pulsator body 4a, and a plurality of lower blade portions 4c formed on a lower surface of the pulsator body 4 a. Such pulsator 4 agitates the washing water stored in the outer tub 3 to generate a water current.
As shown in fig. 4, three baffles (water injection pipes) 8 as water passage pipe portions are provided on the inner peripheral surface 2a1 of the dewatering tub 2 at equal intervals (equal angles) in the circumferential direction. Each baffle plate 8 is formed to extend from the bottom 2c of the dewatering tub 2 to the upper end in the up-down direction and protrude from the inner peripheral surface 2a1 of the dewatering tub 2 toward the axis S1. The baffles 8 are hollow, and have a circular arc cross-sectional shape. In this way, the baffle plate 8 has a shape that protrudes less toward the axis S1 of the dewatering tub 2 and expands in the circumferential direction of the dewatering tub 2, whereby the accommodating space of the dewatering tub 2 can be suppressed from narrowing.
As shown in fig. 2, a laterally long circulation nozzle 80 is formed at the upper end portion of such a baffle plate 8. Further, an opening 81 is formed at the lower end of the baffle plate 8, and the opening 81 opens near the bottom 2c of the dewatering tub 2, more specifically, below the pulsator main body 4 a.
Thus, in the drain valve 10a 1 In the washing process in which the outer tub 3 is closed and the washing water is stored therein (see fig. 2), as shown by an arrow in fig. 2, the washing water agitated by the lower blade portion 4c of the pulsator 4 enters from the opening 81 and is stopped by the baffle plate8 rise up and are discharged from the circulation water port 80, and spray-wash the laundry. Further, by repeating this action, the washing water circulates in the dehydration tub 2. That is, the baffle plate 8 has a circulation function of the washing water.
A separation piece 8a extending from the circulation nozzle 80 to a position close to the inner peripheral surface 2a1 of the dewatering tub 2 is provided near the upper end in the baffle plate 8. The separator 8a extends radially outward from the upper edge of the circulating nozzle 80, and then is bent downward. A gap 8b (see fig. 2) is formed between the separator 8a and the inner peripheral surface 2a1 of the dewatering tub 2, and the adjustment water supplied from the water receiving ring unit 5 flows downward through the gap 8 b.
As shown in fig. 3, the water receiving ring unit 5 is a member formed by overlapping three layers in the radial direction of the water guide grooves 5a, 5b, 5c, which are annular and open upward, on the axis S1 of the dewatering tub 2, and is fixed to the upper end portion of the inner peripheral surface 2a1 of the dewatering tub 2 as shown in fig. 2. The water guide grooves 5a, 5b, 5c are formed in the same number as the baffles 8, and are formed so that the adjustment water independently flows into any one of the baffles 8.
As shown in fig. 3, an opening 5A that opens radially outward is formed at the lower end of the water guide 5A, and the water guide 5A communicates with the inside of the baffle plate 8. An opening 5B that opens radially outward is formed in the lower end portion of the water guide 5B, and the interiors of the water guide 5B and the baffle plate 8 communicate with each other via a water passage 5Ba that passes through the lower portion of the water guide 5 a. An opening 5C that opens radially outward is formed in the lower end portion of the water guide 5C, and the interiors of the water guide 5C and the baffle plate 8 communicate with each other via a water passage 5Ca that passes through the lower portions of the water guide 5a and the water guide 5 b.
A ring-shaped fluid balancer 12 is mounted on the outer peripheral side of the water receiving ring unit 5. The fluid balancer 12 is the same as known fluid balancers.
The water injection device 30 is a member for injecting the adjustment water independently into the water guide grooves 5a, 5b, and 5 c. The water injection device 30 includes three water injection nozzles 30a, 30b, 30c disposed above the water guide grooves 5a, 5b, 5c, and water supply valves 31a, 31b, 31c connected to the water injection nozzles 30a, 30b, 30c, respectively. The water injection nozzles 30a, 30b, and 30c are provided in the same number as the water guide grooves 5a, 5b, and 5c, and are mounted at positions where water can be injected into the water guide grooves 5a, 5b, and 5c, respectively, in the upper end portion of the outer tub 3. In the present embodiment, tap water may be used as the adjustment water. Further, the water supply valves 31a, 31b, 31c may employ direction switching water supply valves.
The driving unit 50 shown in fig. 2 rotates the pulley 52 and the belt 53 by the motor 51, and rotates the driving shaft 54 extending toward the bottom 2c of the dewatering tub 2, thereby providing driving force to the dewatering tub 2 and the pulsator 4, and rotating the dewatering tub 2 and the pulsator 4. The washing machine 1 mainly rotates only the pulsator 4 during washing, and integrally rotates the spin basket 2 and the pulsator 4 at a high speed during dehydration. A proximity switch 55 capable of detecting the passage of the mark 52a formed on the pulley 52 is provided near one pulley 53.
Fig. 5 (a) is a view of the baffle plate 8 formed on the inner peripheral surface 2a1 of the dewatering tub 2 as viewed from the inner peripheral side, and fig. 5 (b) is a view of fig. 5 (a) 1 －a 1 A cross-sectional view taken along line (c) of FIG. 5 is a of FIG. 5 (a) 2 －a 2 A cross-sectional view at line.
As shown in fig. 5 (b), a protruding wall 82 protruding radially inward is provided near the lower end of the inner peripheral side wall of the baffle plate 8. That is, a part of the inner peripheral side wall of the baffle plate 8 protrudes radially inward. As shown in fig. 5 (a) and 5 (b), a water receiving plate 85 protruding radially inward from the outer peripheral wall thereof is formed inside the baffle plate 8.
The water receiving plate 85 is disposed at the same height as the protruding wall 82, and a radially inner end 85a of the water receiving plate 85 is disposed inside the protruding wall 82. A space is formed between the radially inner end 85a of the water receiving plate 85 and the distal inner peripheral surface of the protruding wall 82, and the adjustment water supplied to the water storage space 8Ta flows into the drain space 8Tb through the space.
The internal space of the baffle 8 has: the water storage space 8Ta is disposed above the protruding wall 82 provided with the water receiving plate 85; and a drain space 8Tb disposed below the protruding wall 82. The water storage space 8Ta is a space for storing the adjustment water from the water guide grooves 5a, 5b, 5c, and the drain space 8Tb is a space for draining the adjustment water flowing out of the water storage space 8 Ta.
As shown in fig. 5 (a) and 5 (b), the radial thickness of the water storage space 8Ta is substantially the same as the radial thickness of the drain space 8Tb, whereas the length of the drain space 8Tb in the up-down direction is shorter than the length of the water storage space 8Ta in the up-down direction. The circumferential length of the water storage space 8Ta is formed longer than the circumferential length of the drain space 8Tb. Therefore, the volume of the water storage space 8Ta is larger than the volume of the drain space 8Tb.
The adjustment water injected into the water storage space 8Ta of the baffle plate 8 is held by the water receiving plate 85 disposed in the protruding wall 82 so as not to flow downward, and flows radially inward in the protruding wall 82 along the upper surface of the water receiving plate 85. When the adjustment water is injected into the water storage space 8Ta of the baffle plate 8 in a state where the dewatering tub 2 is rotated, the adjustment water is attached to the outer peripheral walls of the water guide grooves 5a, 5b, 5c by centrifugal force, and thus the adjustment water is held in the water storage space 8 Ta.
In fig. 5 (b) and 5 (c), a broken line extending in the up-down direction indicates a straight line passing through the lower end of the water storage space 8Ta and parallel to the vertical direction. As shown in fig. 5 (b) and 5 (c), the inner peripheral surface of the water storage space 8Ta is inclined so as to be disposed radially inward from the lower end toward the upper end. That is, the inner peripheral surface of the water storage space 8Ta is formed as an inclined surface a inclined so as to be disposed radially outward from the upper end toward the lower end. In the present embodiment, the entire inner peripheral surface of the water storage space 8Ta is the inclined surface a.
As shown in fig. 5 (a), a plurality of water through holes 2t are provided in the dewatering tub 2 in the circumferential both side regions of the drainage space 8Tb, in the same manner as in the region where the baffle plate 8 is not formed in the inner peripheral surface 2a1 of the dewatering tub 2.
The diameter of the water passage hole 2t arranged in the region near the lower end of the water storage space 8Ta is large, and the diameter of the water passage hole 2t formed in the region near the bottom 2c of the dewatering tub 2 is small. That is, the diameters of the water passage holes 2t disposed in the circumferential both side regions of the drain space 8Tb decrease from the upper side to the lower side.
The diameter of the water passage holes 2t formed in the region where the baffle plate 8 is not formed in the inner peripheral surface 2a1 of the dewatering tub 2 is substantially the same as the diameter of the water passage holes 2t formed in the region near the bottom 2c of the dewatering tub 2.
Therefore, when the opening ratio of the water passage holes 2t is set to the ratio of the openings of the water passage holes 2t of the predetermined area, the opening ratio of the water passage holes 2t in the circumferential both side regions of the drainage space 8Tb is larger than the opening area of the water passage holes 2t in the region where the baffle plate 8 is not formed in the inner peripheral surface 2a1 of the dewatering tub 2. The opening ratio of the water passage holes 2t in the circumferential both side regions of the drainage space 8Tb becomes smaller from the upper side to the lower side.
As shown in fig. 5 (a) and 5 (b), in the washing machine 1 of the present embodiment, water that comes out during dehydration in the dehydration tub 2 is pressed against the inner peripheral surface of the water storage space 8Ta by centrifugal force, and easily flows to the lower end of the water storage space 8Ta arranged radially outward of the upper end of the water storage space 8 Ta. Then, the water removed during the dehydration is discharged to the outside of the dehydration tub 2 through the water passing holes 2t formed at both circumferential side regions of the water discharging space 8Tb, and is guided to the water discharging holes of the outer tub 3.
Fig. 6 is a block diagram showing an electrical configuration of the washing machine 1 according to the present embodiment. The operation of the washing machine 1 is controlled by a control unit 60 including a microcomputer. The control unit 60 includes a central control unit (CPU) 61 for controlling the entire system, and a memory 62 storing various setting values and the like is connected to the control unit 60. The microcomputer is caused by the control unit 60 to execute the program stored in the memory 62, thereby performing a predetermined operation, and data and the like used when executing the program are temporarily stored in the memory 62.
The central control unit 61 outputs a control signal to the rotation speed control unit 63, and further outputs the control signal to the motor control unit (motor control circuit) 64 to control the rotation of the motor 51. The rotation speed control unit 63 receives a signal indicating the rotation speed of the motor 51 from the motor control unit 64 in real time, and becomes a control element. The acceleration sensor 56 is connected to the unbalance amount detection section 65, and the acceleration sensor 56 and the proximity switch 55 are connected to the unbalance position detection section 66.
Thus, when the proximity switch 55 senses the mark 52a (see fig. 2), the unbalance amount (M) is calculated in the unbalance amount detection section 65 based on the magnitudes of the accelerations in the horizontal direction and the vertical direction from the acceleration sensor 56, and the unbalance amount is output to the unbalance amount determination section 67. The unbalanced position detection unit 66 calculates an angle of the unbalanced direction from the signal indicating the position of the marker 52a input from the proximity switch 55, and outputs an unbalanced position signal to the water injection control unit 68.
When signals indicating the unbalance amount and the unbalance position from the unbalance amount determination section 67 and the unbalance position detection section 66 are input, the water injection control section 68 determines whether or not to supply water to any one of the baffles 8 in the dewatering tub 2 and the water supply amount thereof based on a control program stored in advance. Then, the selected water supply valves 31a, 31b, 31c are opened to start the adjustment of the water injection. When unbalance occurs in the dewatering tub 2, calculation based on the unbalance amount is started, the adjustment water is injected from the selected water injection nozzles 30a, 30b, 30c into the water guide grooves 5a, 5b, 5c of the water receiving ring unit 5, and the injection of the adjustment water is stopped when the unbalance is eliminated by the baffle plate 8.
For example, as shown in fig. 4, when the cake D (X) of the laundry, which is a factor of unbalance, is located between the baffle plate 8 (a) and the baffle plate 8 (C) of the dewatering tub 2, the water injection control unit 68 controls to supply the adjustment water to the baffle plate 8 (B). When the cake D (Y) of the laundry is located near the baffle plate 8 (B), the control is performed so that the adjustment water is supplied to both the baffle plate 8 (a) and the baffle plate 8 (C).
As described above, the washing machine 1 of the present embodiment includes: a dewatering tub 2 having a pulsator 4 disposed at a bottom 2c thereof and a plurality of water holes 2t formed in an inner peripheral surface 2a1 thereof; three or more baffles 8 are arranged on the inner peripheral surface 2a1 of the dewatering tub 2 at equal intervals in the circumferential direction; and a water injection device 30 capable of injecting the adjustment water independently into each baffle plate 8, wherein a water receiving plate 85 protruding radially inward from the outer peripheral side wall of the baffle plate 8 is formed inside the baffle plate 8, and the baffle plate 8 has: the water storage space 8Ta is arranged above the water receiving plate 85, and stores the adjustment water; and a drain space 8Tb disposed below the water receiving plate 85, wherein the circumferential length of the water storage space 8Ta is longer than the circumferential length of the drain space 8Tb, the inner circumferential surface of the water storage space 8Ta has an inclined surface a inclined so as to be disposed radially outward as going downward, and water passage holes 2t are disposed in both circumferential side regions of the drain space 8Tb in the dewatering tub 2.
With such a configuration, since the inner peripheral surface of the water storage space 8Ta has the inclined surface a inclined so as to be disposed radially outward as going downward, even when the baffle plate 8 is widened in the circumferential direction, water dehydrated from the laundry in the dehydration tub 2 during dehydration is guided downward of the dehydration tub 2. In this way, since the water passage hole 2t is arranged below the water storage space 8Ta, the water dehydrated from the laundry is efficiently discharged to the outside of the dehydration tub 2. This enables smooth dehydration during dehydration. Further, since the water dehydrated from the laundry is intensively discharged from the lower portion of the dehydration tub 2, the discharged water is less likely to be accumulated between the outer tub 3 and the dehydration tub 2, and the discharged water can be smoothly guided to the drain hole of the outer tub 3.
In the washing machine 1 of the present embodiment, the opening area of the water passage holes 2t formed in the drain space 8Tb of the spin basket 2 in the circumferential direction is gradually reduced from the upper side to the lower side.
With such a configuration, the opening area of the water passage holes 2t formed in the circumferential both side regions of the drainage space 8Tb in the dewatering tub 2 becomes smaller from above to below, so that the water can be more smoothly drained during dewatering.
(second embodiment)
The vertical washing machine of the present embodiment is different from the vertical washing machine of the first embodiment in the shape of the inner peripheral surface of the baffle plate 8. The same parts of the structure of the vertical washing machine of the present embodiment as those of the vertical washing machine of the first embodiment will be omitted from detailed description.
Fig. 7 (a) is a view of a baffle plate 8 formed on an inner peripheral surface 2a1 of a dewatering tub 2 of a washing machine according to the second embodiment as seen from an inner peripheral side, and fig. 7 (b) is a view of fig. 7 (a) 1 －a 1 A cross-sectional view taken along line (c) of FIG. 7 is a of FIG. 7 (a) 2 －a 2 A cross-sectional view taken along line (d) of FIG. 7 is a of FIG. 7 (a) 3 －a 3 A cross-sectional view at line.
As shown in fig. 7 (b) and 7 (c), the inner peripheral surface of the water storage space 8Ta is formed as an inclined surface a inclined so as to be disposed radially outward from the upper end toward the lower end. As shown in fig. 7 (a) and 7 (d), a diversion portion 8Tc protruding inward of the dewatering tub 2 is formed near the lower end portion of the inner peripheral surface of the water storage space 8 Ta. The width of the shunt portion 8Tc in the horizontal direction becomes wider as it goes from above to below. Therefore, water flowing down from above along the inner peripheral surface of the water storage space 8Ta is split laterally at the upper end of the split portion 8Tc, and flows to both sides in the circumferential direction of the drain space 8Tb.
In the washing machine of the present embodiment, a diversion portion 8Tc that diverts water to both sides in the circumferential direction of the drain space 8Tb is formed near the lower end portion of the inner peripheral surface of the water storage space 8 Ta.
With such a configuration, the water drained from the laundry can be guided to the water passage hole 2t arranged below the water storage space 8Ta because the diversion portion 8Tc for diverting the water to both sides in the circumferential direction of the water drainage space 8Tb is formed near the lower end portion of the inner peripheral surface of the water storage space 8 Ta.
(third embodiment)
The vertical washing machine according to the present embodiment is different from the vertical washing machine according to the first embodiment in that a gap between an inner peripheral surface 2a1 of the dewatering tub 2 and the baffle plate 8 is formed. The same parts of the structure of the vertical washing machine of the present embodiment as those of the vertical washing machine of the first embodiment will be omitted from detailed description.
Fig. 8 (a) is a view of a baffle plate 8 formed on an inner peripheral surface 2a1 of a dewatering tub 2 of a washing machine according to the third embodiment as seen from an inner peripheral side, and fig. 8 (b) is a schematic view of the dewatering tub 2.
The inner peripheral surface of the water storage space 8Ta is formed as an inclined surface a inclined so as to be disposed radially outward from the upper end toward the lower end. As shown in fig. 8b, a gap is formed between the inner peripheral surface 2a1 of the dewatering tub 2 and the rear surface of the baffle plate 8 (the surface on the radially outer side of the baffle plate 8). Therefore, water dehydrated from the laundry in the dehydration tub 2 during dehydration can pass through a gap between the inner circumferential surface 2a1 of the dehydration tub 2 and the back surface of the baffle plate 8.
As shown in fig. 8 (a) and 8 (b), a plurality of water holes 2t are provided in the inner peripheral surface 2a1 of the dewatering tub 2 at portions facing the rear surface of the baffle plate 8. As described above, in the present embodiment, the plurality of water holes 2t are arranged in the portion of the inner peripheral surface 2a1 of the dewatering tub 2 that is blocked by the water storage space 8Ta of the baffle plate 8. Therefore, the water dehydrated from the laundry in the dehydration tub 2 during dehydration is wound around the rear surface side from the left and right end portions of the water storage space 8Ta of the baffle plate 8, passes through the gap between the inner peripheral surface 2a1 of the dehydration tub 2 and the rear surface of the baffle plate 8, and is discharged from the water passage hole 2t to the outside of the dehydration tub 2.
In the washing machine of the present embodiment, a gap is formed between the inner peripheral surface 2a1 of the dewatering tub 2 and the back surface of the baffle plate 8, and the water passage holes 2t are arranged in the portion of the inner peripheral surface 2a1 of the dewatering tub 2 that faces the back surface of the baffle plate 8.
With such a configuration, water dehydrated from the laundry in the dehydration tub 2 is wound around the rear surface side from the left and right end portions of the baffle plate 8 during dehydration, and is efficiently discharged from the water passage hole 2t to the outside of the dehydration tub 2 through the gap between the inner peripheral surface 2a1 of the dehydration tub 2 and the rear surface of the baffle plate 8.
The embodiments of the present invention have been described above, but the configuration of the present embodiment is not limited to the above-described embodiments, and various modifications are possible.
For example, in the first to third embodiments, the entire region of the inner peripheral surface of the water storage space 8Ta is the inclined surface a inclined so as to be disposed radially outward as going downward, but only a part of the inner peripheral surface of the water storage space 8Ta may be the inclined surface a inclined so as to be disposed radially outward as going downward.
In the first to third embodiments described above, the opening ratio of the water passage holes 2t formed in the circumferential both side regions of the drainage space 8Tb in the dewatering tub 2 is reduced from above to below, but the present invention is not limited thereto. For example, the opening ratio of the water passage holes 2t formed in the circumferential both side regions of the drainage space 8Tb in the dewatering tub 2 may be fixed in the entire region thereof. In the first to third embodiments, the opening area, the number, and the arrangement of the water passage holes 2t formed in the inner peripheral surface of the dewatering tub 2 are arbitrary.
In the first to third embodiments described above, three baffles 8 are provided, and the water receiving ring unit 5 having three water guide grooves 5a, 5b, 5c for injecting water into the three baffles 8 is provided, but the present invention is not limited thereto, and any configuration may be adopted as long as three or more baffles 8 are provided and a water injection device capable of independently injecting adjustment water into each baffle 8 is provided.
In the third embodiment, the description of the supporting structure of the baffle plate 8 with respect to the inner peripheral surface 2a1 of the dewatering tub 2 is omitted, but any supporting structure is used as long as a gap is formed between the inner peripheral surface 2a1 of the dewatering tub 2 and the baffle plate 8.
In the first to third embodiments described above, the inner peripheral side wall of the baffle plate 8 has the protruding wall portion 82 protruding radially inward, and the radially inner end portion of the water receiving plate 85 is disposed inside the protruding wall portion 82, but is not limited thereto. For example, the inner peripheral side wall of the flow plate 8 may not have the protruding wall 82 protruding radially inward.
In the first to third embodiments, examples of the shape of the baffle plate 8 are shown, but the present invention is not limited thereto. The shape of the baffle plate 8, the shape of the water storage space 8Ta and the drainage space 8Tb are arbitrary, and may be, for example, a shape widening upward or widening downward.
In the first to third embodiments, the shape of the water receiving plate 85 is shown as an example, but the present invention is not limited to this. The position (height in the up-down direction) and the radial length of the water receiving plate 85 are arbitrary.
Other structures may be variously modified within a range not departing from the technical spirit of the present invention.
Claims (3)
1. A washing machine is characterized by comprising:
a dewatering barrel, the bottom of which is provided with a pulsator, and the inner circumferential surface of which is provided with a plurality of water through holes;
three or more baffles arranged at equal intervals in the circumferential direction on the inner circumferential surface of the dewatering barrel; and
a water injection device capable of independently injecting adjusting water into each baffle plate,
a water receiving plate protruding from the outer peripheral side wall to the radial inner side is formed in the baffle plate,
the baffle has:
a water storage space arranged above the water receiving plate for storing the regulated water; and
a water discharge space arranged below the water receiving plate for discharging the regulated water flowing out of the water storage space,
the circumferential length of the water storage space is formed longer than the circumferential length of the drainage space,
the inner peripheral surface of the water storage space is provided with an inclined surface which is inclined to be arranged radially outwards as the inner peripheral surface is downwardly arranged,
the water through holes are arranged in the two circumferential side areas of the drainage space in the dewatering barrel;
a diversion portion that diverts water to both sides in the circumferential direction of the drain space is formed near a lower end portion of an inner peripheral surface of the water storage space, and a width of the diversion portion in the horizontal direction becomes wider as going from above to below.
2. A washing machine as claimed in claim 1, characterized in that,
the opening area of the water passage hole formed in the drain space in the dewatering tub is reduced from the upper side to the lower side.
3. Washing machine according to any one of claims 1 to 2, characterized in that,
a gap is formed between the inner circumferential surface of the dewatering tub and the back surface of the baffle plate, and,
the water passage holes are arranged in a portion of the inner peripheral surface of the dewatering tub, the portion being opposite to the back surface of the baffle plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020111516A JP2022010784A (en) | 2020-06-29 | 2020-06-29 | washing machine |
| JP2020-111516 | 2020-06-29 | ||
| PCT/CN2021/081690 WO2022001205A1 (en) | 2020-06-29 | 2021-03-19 | Washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115768937A CN115768937A (en) | 2023-03-07 |
| CN115768937B true CN115768937B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180046451.7A Active CN115768937B (en) | 2020-06-29 | 2021-03-19 | Washing machine |
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| Country | Link |
|---|---|
| JP (1) | JP2022010784A (en) |
| CN (1) | CN115768937B (en) |
| WO (1) | WO2022001205A1 (en) |
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2020
- 2020-06-29 JP JP2020111516A patent/JP2022010784A/en active Pending
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2021
- 2021-03-19 CN CN202180046451.7A patent/CN115768937B/en active Active
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| CN1509359A (en) * | 2001-03-28 | 2004-06-30 | ������������ʽ���� | Washing machine |
| EP1736589A2 (en) * | 2005-06-24 | 2006-12-27 | V-Zug AG | Washing machine with unbalance detector |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2022010784A (en) | 2022-01-17 |
| CN115768937A (en) | 2023-03-07 |
| WO2022001205A1 (en) | 2022-01-06 |
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