CN112210944B - Inner barrel of washing machine, washing machine with inner barrel and control method of washing machine - Google Patents
Inner barrel of washing machine, washing machine with inner barrel and control method of washing machine Download PDFInfo
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- CN112210944B CN112210944B CN201910550732.0A CN201910550732A CN112210944B CN 112210944 B CN112210944 B CN 112210944B CN 201910550732 A CN201910550732 A CN 201910550732A CN 112210944 B CN112210944 B CN 112210944B
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- washing
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- 238000005406 washing Methods 0.000 title claims abstract description 168
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 147
- 238000007789 sealing Methods 0.000 claims abstract description 111
- 230000007246 mechanism Effects 0.000 claims description 79
- 230000001133 acceleration Effects 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000001351 cycling effect Effects 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 241000283216 Phocidae Species 0.000 description 6
- 101150114468 TUB1 gene Proteins 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000013011 mating Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
- D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating 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
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
- D06F37/14—Ribs or rubbing means forming part of the receptacle
-
- 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
- D06F37/30—Driving arrangements
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
The invention provides an inner barrel of a washing machine, the washing machine with the inner barrel and a control method thereof. According to the inner barrel of the washing machine, the inner surface of the barrel bottom is assembled in a sealing way or integrally formed with the barrel bottom protruding part protruding towards the inner part of the inner barrel, and/or the inner surface of the barrel body is assembled in a sealing way or integrally formed with the barrel body protruding part protruding towards the inner part of the inner barrel, so that the impeller is omitted, the problem that dirt is easy to hide between the impeller and the barrel bottom is solved, and water flow and clothes are driven to realize washing/rinsing along with movement through the barrel bottom protruding part and/or the barrel body protruding part, so that the washing effect is ensured.
Description
Technical Field
The invention relates to the technical field of self-cleaning washing machines, in particular to an inner barrel of a washing machine, the washing machine with the inner barrel and a control method of the washing machine.
Background
As shown in fig. 1, the structure of the existing washing machine generally comprises an inner tub and an outer tub 1, the inner tub is communicated with the outer tub 1, a dewatering hole is formed in the inner tub for dewatering, and the outer tub 1 is sealed to be a water containing tub. Like this, the washing machine is at the during operation, and the region between inner tub and the outer tub 1 is full of water, and in the long-time use operation in-process of washing machine, the region between inner tub and the outer tub 1 can be covered by dirt and the line bits that have in the water, and the use of the long-term tired month can produce bacterium and peculiar smell, all causes great influence to washing effect and user experience.
In addition, the pulsator 3 and the tub bottom 4 of the existing full-automatic pulsator washing machine are driven by different driving shafts, and the pulsator 3 is rotatable relative to the tub bottom 4, so that a gap exists between the pulsator 3 and the tub bottom 4, and in addition, the bottom of the pulsator 3 generally has more reinforcing ribs, and as the service time of the washing machine increases, the problem of dirt accumulation between the pulsator 3 and the tub bottom 4 is easy to occur.
In order to solve the pollution problem of the inner barrel and the outer barrel caused by filling water between the inner barrel and the outer barrel, the prior novel washing machine can seal the space between the inner barrel and the outer barrel so as to avoid the pollution problem. The known solutions are that the inner tub is designed as a hole-free inner tub, so that the inner tub is isolated from the outer tub, and serves as a water tub, while the sealing of the inner tub is achieved by means of an external sealing structure, which is pushed against the water outlet of the inner tub, in order to achieve the draining of the inner tub. Although the non-porous inner barrel can solve the problem of dirt between the inner barrel and the outer barrel, the problem of dirt between the impeller and the bottom of the inner barrel cannot be solved.
Therefore, the invention mainly aims to solve the problem of dirt accumulation between the pulsator of the full-automatic pulsator washing machine and the bottom of the inner barrel, and further, the invention combines the self-cleaning scheme of the non-porous inner barrel to realize the comprehensive self-cleaning of the washing machine and avoid dirt accumulation dead angles.
In view of this, the present invention has been made.
Disclosure of Invention
In order to solve the problems, the first aspect of the present invention is to provide an inner tub of a washing machine, specifically, the following technical solution is adopted:
the inner barrel of the washing machine comprises a barrel bottom and a barrel body, wherein the barrel body is provided with a closed area, a water containing cavity capable of independently containing washing water is formed by the closed area and the barrel bottom, a barrel bottom protruding part protruding towards the inner part of the inner barrel is assembled in a sealing mode or integrally formed in an integral mode, and/or a barrel protruding part protruding towards the inner part of the inner barrel is assembled in a sealing mode or integrally formed in an integral mode in the inner surface of the barrel body.
Further, the barrel bottom protruding part is formed by integrally forming the inner surface of the barrel bottom, the barrel bottom protruding part comprises at least one barrel bottom protruding part, and the barrel bottom protruding part comprises an ascending section gradually rising from the edge of the barrel bottom to the center and a descending section gradually lowering from the center of the barrel bottom to the edge;
preferably, the inner surface of the barrel bottom is provided with a plurality of barrel bottom convex parts which are uniformly distributed along the circumference of the barrel bottom.
Further, a plurality of water outlets are arranged at the lowest position on the barrel bottom, and the water outlets are distributed in the same circular ring;
preferably, the water outlet is arranged on the bottom of the barrel near the edge, and at least one water outlet is internally tangent with the periphery of the bottom edge of the barrel, or the circular ring is internally tangent with the periphery of the bottom edge of the barrel.
Further, the barrel body protruding part is formed by an integral forming structure on the inner surface of the barrel body, and the barrel body protruding part is parallel to the central axis of the inner barrel;
preferably, the inner surface of the barrel body is provided with a plurality of barrel body protruding parts, and the barrel body protruding parts are uniformly distributed along the circumferential direction of the barrel body.
Further, a locking hole for locking the inner barrel by matching with the locking mechanism is formed in the outer wall of the barrel bottom;
preferably, the locking hole is a blind hole.
The second object of the present invention is to provide a washing machine having the inner tub of the washing machine, specifically, the following technical scheme is adopted:
the washing machine with the inner barrel of the washing machine comprises a driving motor, wherein the central axis of the inner barrel is vertically arranged, the barrel mouth of the inner barrel faces upwards, and the output shaft of the driving motor is fixedly connected with the barrel bottom of the inner barrel and directly drives the inner barrel to rotate.
Further, the washing machine also comprises a water collecting device with an open water collecting cavity, wherein at least the bottom of the inner barrel is arranged in the water collecting cavity and is used for collecting washing water discharged by the inner barrel; the driving motor is arranged at the bottom of the water collecting device, and an output shaft of the driving motor penetrates through the water collecting device to be directly and fixedly connected with the bottom of the inner barrel.
Further, the water collecting device comprises a water discharging sealing device arranged on the water collecting device, wherein the water discharging sealing device comprises a sealing mechanism capable of sealing the water discharging opening in a blocking mode and a driving mechanism for driving the sealing mechanism to open/close the water discharging opening.
The third object of the present invention is to provide a control method of a washing machine, specifically, the following technical scheme is adopted:
a control method of washing machine, in the course of washing, the washing machine controls the driving motor to drive the inner barrel to rotate forward and backward, in the course of dewatering, the washing machine controls the driving motor to drive the inner barrel to rotate unidirectionally at high speed to dewater.
Further, in the washing process, the washing machine controls the inner barrel to rotate forward for a first set time at a first acceleration, after the forward rotation is finished, controls the inner barrel to rotate reversely for a second set time at a second acceleration, and after the reverse rotation is finished, the forward rotation is executed again, so that the cycle is performed;
preferably, as the load capacity of the washing machine increases/decreases, the unidirectional action time and the stop time of the driving motor can be adjusted in a following way and have a positive correlation with the load capacity of the washing machine;
preferably, the unidirectional action time of the driving motor is 1.5-5S, and the unidirectional stop time of the driving motor is 1.5-5S;
further preferably, the unidirectional action time of the driving motor is 2-4S, and the unidirectional stop time of the driving motor is 2-4S.
The inner barrel of the washing machine is sealed, so that the inner barrel can independently hold washing water during washing/rinsing, water is prevented from being stored between the inner barrel and the outer barrel, and the problem of dirt storage and scale storage between the inner barrel and the outer barrel is solved.
The inner barrel of the washing machine of the invention eliminates the impeller which can rotate relative to the inner barrel, and instead, the inner surface of the barrel bottom is assembled in a sealing way or integrally formed with the barrel bottom protruding part protruding towards the inner part of the inner barrel, and/or the inner surface of the barrel body is assembled in a sealing way or integrally formed with the barrel body protruding part protruding towards the inner part of the inner barrel, and when in washing, the inner barrel rotates to drive the barrel bottom protruding part and/or the barrel body protruding part to drive water flow and clothes to move along with the inner barrel, thus washing/rinsing is realized.
According to the inner barrel of the washing machine, the inner surface of the barrel bottom is assembled in a sealing way or integrally formed with the barrel bottom protruding part protruding towards the inner part of the inner barrel, and/or the inner surface of the barrel body is assembled in a sealing way or integrally formed with the barrel body protruding part protruding towards the inner part of the inner barrel, so that the impeller is omitted, the problem that dirt is easy to hide between the impeller and the barrel bottom is solved, and water flow and clothes are driven to realize washing/rinsing along with movement through the barrel bottom protruding part and/or the barrel body protruding part, so that the washing effect is ensured.
Drawings
FIG. 1 is a schematic diagram of a conventional full-automatic pulsator washing machine;
FIG. 2 is a schematic diagram of a washing machine according to an embodiment of the present invention;
fig. 3 is a front view illustrating a tub bottom structure of an inner tub of a washing machine according to an embodiment of the present invention;
FIG. 4 is a top view showing a bottom structure of an inner tub of a washing machine according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a second and third embodiment of the present invention;
fig. 6 is a partially enlarged view (drain opening closing state) of fig. 5 of a second washing machine according to an embodiment of the present invention;
fig. 7 is a partially enlarged view (drain opening state) of fig. 5 of a second washing machine according to an embodiment of the present invention;
fig. 8 is a partially enlarged view (drain opening closing state) of fig. 5 of a three-washing machine according to an embodiment of the present invention;
fig. 9 is a partially enlarged view (drain opening state) of fig. 5 of a triple laundry machine according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a structure (drain opening closing state) of a fourth washing machine according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a structure (drain opening state) of a fourth washing machine according to an embodiment of the present invention.
Detailed Description
The present invention relates to an inner tub of a washing machine, a washing machine having the same, and a control method thereof, and more particularly, to an inner tub of a washing machine, a control method thereof, and a control method thereof, which are described in detail below with reference to the accompanying drawings:
example 1
As shown in fig. 2 to 4, the present embodiment provides an inner tub of a washing machine, comprising a tub bottom 4 and a tub body 2, wherein the tub body 2 has a closed area, the closed area and the tub bottom 4 together form a water containing chamber capable of independently containing washing water, a tub bottom protruding portion 8 protruding toward the inside of the inner tub is assembled or integrally formed on the inner surface of the tub bottom 4 in a sealing manner, and/or a tub protruding portion 7 protruding toward the inside of the inner tub is assembled or integrally formed on the inner surface of the tub body 2 in a sealing manner.
The inner barrel of the washing machine of the embodiment is designed in a closed manner, so that the inner barrel can independently hold washing water during washing/rinsing, water is prevented from being stored between the inner barrel and the outer barrel, and the problem of dirt collection and dirt containing between the inner barrel and the outer barrel is solved.
In addition, the inner tub of the washing machine of this embodiment eliminates the pulsator capable of rotating relative to the inner tub, instead, the inner surface of the tub bottom 4 is assembled in a sealing manner or integrally formed with the tub bottom protruding portion 8 protruding toward the inside of the inner tub, and/or the inner surface of the tub 2 is assembled in a sealing manner or integrally formed with the tub body protruding portion 7 protruding toward the inside of the inner tub, and when washing, the inner tub rotates to drive the tub bottom protruding portion 8 and/or the tub body protruding portion 7 to drive water flow and clothes to move along with the movement, so as to realize washing/rinsing. The inner barrel of the washing machine of the embodiment is provided with the barrel bottom protruding part 8 protruding towards the inner barrel through sealing assembly or integrated forming on the inner surface of the barrel bottom 4, and/or the inner surface of the barrel body 2 is provided with the barrel body protruding part 7 protruding towards the inner barrel through sealing assembly or integrated forming, so that the pulsator is omitted, the problem of easy dirt accumulation between the pulsator and the barrel bottom 4 is solved, and water flow and clothes are driven along with movement through the barrel bottom protruding part 8 and/or the barrel body protruding part 7 to realize washing/rinsing, and the washing effect is ensured.
The tub bottom protrusion 8 on the tub bottom 4 of the present embodiment may be a separate member, but needs to be in sealing contact with the tub bottom 4 to prevent the washing water from entering therebetween, or may be integrally formed with the tub bottom 4.
Similarly, the tub protrusion 7 on the tub 2 of the present embodiment may be a separate member, but needs to be in sealing contact with the tub 2 to prevent the washing water from entering therebetween, or may be integrally formed with the tub 2.
The tub bottom protruding part 8 of this embodiment is mainly used for realizing up-and-down rolling of the washing water, driving the up-and-down motion of the laundry, and the tub body protruding part 7 is mainly used for realizing circumferential rolling of the washing water, driving the circumferential motion of the laundry. The tub bottom protruding part 8 and the tub body protruding part 7 of this embodiment may be set at the same time or alternatively, preferably, the tub bottom protruding part 8 and the tub body protruding part 7 are set in the inner tub of the washing machine of this embodiment at the same time, so that water flow is enriched, and washing effect is improved.
As shown in fig. 3, the tub bottom protrusion 8 according to the present embodiment is formed of an integrally formed structure of the inner surface of the tub bottom 4, the tub bottom protrusion 8 includes at least one, and the tub bottom protrusion 8 includes an ascending section 12 gradually ascending from the edge of the tub bottom to the center and a descending section 11 gradually descending from the center of the tub bottom to the edge. The structure of the barrel bottom protruding part 8 of the embodiment can enable stirring water flow to roll up and down when rotating, in addition, clothes can be driven to rise to the highest position along the rising section 12 and then fall along the falling section 11, so that the clothes are beaten to a certain extent, and the clothes washing effect is improved.
Preferably, the inner surface of the tub bottom in this embodiment has a plurality of tub bottom protrusions 8, and the plurality of tub bottom protrusions 8 are uniformly distributed along the circumference of the tub bottom, so as to further enhance the stirring water flow and promote the washing effect on the laundry.
As shown in fig. 4, in order to realize the drainage of the inner barrel without holes, the present embodiment is provided with a plurality of drainage openings 14 at the lowest position on the barrel bottom 4, and the plurality of drainage openings 14 are all distributed in the same circular ring 13.
In this embodiment, the plurality of water outlets 14 are designed on the bottom 4 of the bucket, so that the water outlets 14 can be designed to be very small, and a certain thread scraps filtering effect is achieved during water drainage, so that thread scraps are prevented from being blocked. The water outlets 14 are all distributed in the same circular ring 13, so that the water outlets 14 are sealed conveniently.
Preferably, the water outlet 13 is arranged on the barrel bottom 4 near the edge, and at least one water outlet 13 is internally tangent with the periphery of the edge of the barrel bottom 4 or the circular ring 13 is internally tangent with the periphery of the edge of the barrel bottom 4. In this way, the water outlet 13 is located at the lowest position of the tub bottom 4, so that the water in the tub of the washing machine is drained completely, and the residual water is avoided.
As an implementation manner of this embodiment, the tub protruding part 7 of this embodiment is formed by integrally forming the inner surface of the tub 2, and the tub protruding part 7 is parallel to the central axis of the inner tub. The barrel body protruding portion 7 of this embodiment is by barrel body 2 integrated into one piece, avoids both to assemble and produces the clearance, need not consider sealing problem, and the assembly is simpler, and stops entirely to hide dirty problem.
Preferably, the inner surface of the tub body 2 has a plurality of tub body protrusions 7, and the tub body protrusions 7 are uniformly distributed along the circumference of the tub body 2, so that the stirring water flow is further enhanced, and the washing effect on the laundry is improved.
The inner tub of the washing machine of this embodiment rotates in the washing and dewatering processes, therefore, the rotation position of the water outlet 13 in the inner tub is uncertain along with the rotation position of the inner tub, in order to ensure the accurate sealing and opening of the water outlet, in this embodiment, a locking hole for locking the inner tub by matching with a locking mechanism is arranged on the outer wall of the tub bottom 4, so that the inner tub is locked to a determined position by matching the locking mechanism with the locking hole, and the water outlet 13 is ensured to be opened at the same position.
The barrel bottom 4 and the barrel body 2 of the embodiment are matched through structures or are integrally formed to form a sealing structure.
The upper part of the closed area of the barrel body 2 of the embodiment is provided with a dehydration hole, and the position of the dehydration hole is higher than the highest water level capable of containing water in the inner barrel, so that the washing water is only in the inner barrel during washing/rinsing, and the inner barrel rotates at a high speed during dehydration, and the water in the inner barrel rises to the dehydration hole along the barrel wall under the centrifugal force to be separated.
Preferably, the dehydration hole is arranged at the inner barrel opening, and after the balance ring is arranged on the inner barrel opening, the balance ring can hide the dehydration hole, so that a pore-free inner barrel structure in the aspect of appearance is realized.
Preferably, the locking hole is a blind hole.
As shown in fig. 2, this embodiment also provides a washing machine with the inner tub of the washing machine, including a driving motor 6, the central axis of the inner tub is vertically disposed, the tub mouth of the inner tub faces upward, and an output shaft 10 of the driving motor 6 is fixedly connected with the tub bottom 4 of the inner tub, so as to directly drive the inner tub to rotate.
The washing machine adopts a mode that the driving motor 6 directly drives the inner barrel to rotate, a speed reducer is omitted, and an output shaft of the driving motor 6 is arranged on the outer barrel and can be matched with the outer barrel through a bearing.
The washing machine of the embodiment adopts a pore-free inner barrel, and the inner barrel can independently hold washing water during washing, so that an outer barrel of the existing full-automatic washing machine for holding water is not needed or can be improved in structure, and the washing machine of the embodiment also comprises a water collecting device with an open water collecting chamber, wherein at least the barrel bottom 4 of the inner barrel is arranged in the water collecting chamber and is used for collecting the washing water discharged by the inner barrel; the driving motor 6 is arranged at the bottom of the water collecting device, and an output shaft 10 of the driving motor 6 penetrates through the water collecting device to be directly and fixedly connected with the barrel bottom 4 of the inner barrel.
The main functions of the water collecting device of this embodiment are:
1. for collecting and discharging water discharged from the inner tub, including water discharged from the water discharge port and water discharged from the water discharge hole.
2. The device is used for mounting barrel bottom structural members such as a driving motor 6 and a drain valve.
3. The hoisting device is used for hoisting the damping boom and realizing the installation of the inner barrel.
Therefore, the water collecting device of the present embodiment can be used as the tub 1 of the existing washing machine.
The output shaft 10 of the driving motor 6 of the embodiment is fixedly connected with the barrel bottom 4 of the inner barrel through a fixing screw 9.
In order to enhance the connection strength between the output shaft 10 and the barrel bottom 4 and prevent the rotation torque from being directly transmitted to the barrel bottom 4 to cause barrel bottom deformation when the output shaft 10 rotates, a bracket is fixedly arranged below the barrel bottom 4, and further, in order to prevent water leakage caused by the direct installation of the bracket and the barrel bottom 4, the invention changes the installation mode of the bracket, cancels the fixing structure of the bracket and the barrel bottom, and designs the lower part of the barrel body 2 to extend downwards and protrude out of the lower surface of the barrel bottom 4, and the bracket is fixedly connected with the lower part of the barrel body 2 through a fixing screw 9 which is radially arranged, so that the bracket is fixed below the barrel bottom 4.
In the washing machine of the present embodiment, since the reduction clutch is eliminated, the driving motor is required to receive a large load torque, and therefore, a motor having a large output torque is selected. As an implementation manner of the present embodiment, the driving motor of the present embodiment adopts a direct-drive motor, and further, adopts a direct-drive variable frequency motor.
The washing machine of the present embodiment further includes a drain sealing device provided on the water collecting device, the drain sealing device including a sealing mechanism that can seal the drain opening and a driving mechanism that drives the sealing mechanism to open/close the drain opening.
The washing machine of this embodiment still includes locking mechanism, and locking mechanism sets up on water collector, and locking mechanism has the locking pole of up-and-down motion, and the locking pole rises and inserts in the locking hole of interior bucket and lock the interior bucket of washing machine.
The embodiment also provides a control method of the washing machine, wherein in the washing process, the washing machine controls the driving motor to drive the inner barrel to rotate forward and backward, and in the dewatering process, the washing machine controls the driving motor to drive the inner barrel to rotate at a unidirectional high speed for dewatering.
Further, in the washing process, the washing machine controls the inner barrel to rotate forward for a first set time at a first acceleration, after the forward rotation is finished, controls the inner barrel to rotate reversely for a second set time at a second acceleration, and after the reverse rotation is finished, the forward rotation is executed again, so that the cycle is performed;
preferably, as the load capacity of the washing machine increases/decreases, the unidirectional action time and the stop time of the driving motor can be adjusted in a following way and have a positive correlation with the load capacity of the washing machine;
preferably, the unidirectional action time of the driving motor is 1.5-5S, and the unidirectional stop time of the driving motor is 1.5-5S;
further preferably, the unidirectional action time of the driving motor is 2-4S, and the unidirectional stop time of the driving motor is 2-4S.
The washing action starts, the driving motor drives the inner barrel part to rotate positively at a high acceleration, water flow and clothes are driven by the barrel bottom bulge 8 on the barrel bottom 4 to move up and down, and the barrel body bulge 7 is driven to move circumferentially, so that the up and down movement and the circumferential movement are combined to form a three-dimensional washing effect. After the forward motion is finished, the inner barrel and the water flow start to rotate reversely after the forward speed is lower or the forward speed is stopped. After the reverse action is finished, the inner barrel and the water flow start to rotate forward after the reverse speed is low or the water flow stops, so that the cycle is started.
The inner tub of the washing machine of the embodiment can also only move in one direction, and can rotate positively and negatively.
Example two
As shown in fig. 5 to 7, the present embodiment provides a washing machine, which comprises an inner tub capable of independently holding washing water in a washing process, wherein a drain opening 14 is provided at a tub bottom 4 of the inner tub, and further comprises a drain sealing device, the drain sealing device comprises a drain mechanism 19 and a sealing mechanism, the drain mechanism 19 is mounted on the drain opening 14 and internally provided with a drain channel communicating with the drain opening, and the sealing mechanism is mounted in the drain channel in an openable and closable manner.
The washing machine of this embodiment realizes the sealing and opening control to the outlet of aporate inner tub through adopting drainage sealing device, and drainage sealing device includes drainage mechanism, can be with the interior water of inner tub by the outlet leading-in to inside drainage passageway in, and sealing mechanism can realize the switching control to the drainage passageway, therefore, drainage sealing device can be installed on the outlet as independent module, need not consider the sealed assembly to the outlet, and the installation is simpler and more convenient.
As shown in fig. 6, the washing machine of the present embodiment further includes a mounting bracket 22 mounted on the drain port 14, and the drain mechanism is fixedly mounted on the mounting bracket 22 and is in sealing communication with the drain port 14.
The washing machine of the present embodiment further includes a drain cover 20, the drain cover 20 including an end cover portion and a connection portion, the end cover portion being covered on the drain opening 14, the end cover portion being provided with a plurality of drain openings, the connection portion being fixedly connected with the mounting bracket 22.
In this embodiment, the drain cover 20 is covered on the drain opening 14, and a plurality of small-aperture drain openings are arranged on the drain opening cover, so that the drain is filtered, and the blockage of thread scraps is avoided.
In order to realize the fixed connection among the drain cover 20, the drain mechanism and the mounting bracket 22, the mounting bracket 22 in this embodiment is an annular sleeve sleeved on the periphery of the drain outlet, the interior of the annular sleeve is provided with internal threads, the connecting part is a connecting sleeve connected below the end cover part, and the connecting sleeve is provided with external threads assembled with the internal threads.
One end of the drainage channel of the drainage mechanism 19 is provided with an internal thread, the length of the connecting sleeve is longer than that of the annular sleeve, and the part of the connecting sleeve extending out of the annular sleeve is in threaded connection with the internal thread of the drainage channel.
In order to realize the sealing connection between the drain cover 20 and the drain, an annular sink is arranged at the periphery of the drain 14, and a first sealing ring 21 is arranged between the end cover part and the annular sink.
The drainage channel of the drainage mechanism 19 of this embodiment is internally provided with a retracted channel drainage port, the sealing mechanism comprises a blocking member 24 and a supporting member 26, the supporting member 26 is fixedly arranged in the drainage channel, and the blocking member 24 is slidably arranged on the supporting member 26:
during washing or rinsing, the plugging part 24 is in sealing fit with the channel water outlet, and the inner barrel independently holds washing water; when the water is discharged, the plugging member 24 opens the water outlet of the passage, and the washing water in the inner tub is discharged.
The drainage channel is internally provided with an inward convex section, a step structure is formed between the inward convex section and the inner wall of the drainage channel, and a channel water outlet is formed at the step structure. A second sealing ring 23 is arranged between the end of the connecting part of the drain cover 20 and the end of the step structure.
Further, the supporting member 26 in this embodiment includes a fixing portion and a sleeving portion, the fixing portion is fixedly installed in the drainage channel and fixedly connected with the sleeving portion, and the sleeving portion has a hollow slideway; the plugging member 24 comprises a sealing part and a connecting part, the sealing part is in sealing fit with the channel water outlet, and the connecting part is slidably arranged in the hollow slideway of the sleeving part, so that the sealing part and the water outlet are sealed and separated.
The support member 26 of the present embodiment may be constructed and installed in the drain passage of the drain mechanism 19 alone, or may be formed by integrally molding the drain mechanism 19, and may be formed by extending the peripheral wall part of the drain passage toward the inside of the drain passage.
Further, the part of the fixing part, which is positioned in the drainage channel and is connected with the sleeving part, is provided with a smooth structure for smoothing sliding off of thread scraps during drainage.
Preferably, the smooth structure is a saddle-shaped structure with two high ends and a low middle.
Further preferably, the upper surface of the smooth structure is an arc surface curved downward.
Specifically, the sleeve part is a sleeve with a hollow inside, the bottom surface of the plugging part is provided with a circular ring sealing part matched with the water outlet, the connecting part is a central rod arranged at the circle center of the circular ring sealing part, and the central rod is inserted into the sleeve and can slide relatively.
Preferably, the plugging member further comprises a gasket 25, and the gasket 25 is disposed on the annular sealing portion.
Further, the end of the central rod of the plugging member 24 is provided with a fixing buckle 28, the upper end of the sleeving part 1 is provided with a limiting step extending towards the inside of the hollow slideway for a certain distance, the pressure spring is sleeved on the central rod, one end of the pressure spring is abutted against the fixing buckle 28, and the other end of the pressure spring is abutted against the limiting step.
As an implementation manner of this embodiment, the sealing mechanism includes an elastic member 27, where one end of the elastic member 27 abuts against the supporting member 26, and the other end abuts against the plugging member 24, and the elastic member 27 deforms when the plugging member 24 slides to a state separated from the channel drain outlet, so as to implement elastic reset sealing of the plugging member 24.
Preferably, the initial state of the elastic member is in a compressed state to maintain a sealing engagement between the blocking member and the channel drain opening and to maintain a normally closed state of the channel drain opening.
The washing machine of this embodiment includes the outside water collecting device of setting in interior bucket, and drainage sealing device still includes actuating mechanism, actuating mechanism install on water collecting device corresponding to sealing mechanism, actuating mechanism has the output 29 that can stretch out and draw back from top to bottom:
during washing or rinsing, the output end of the driving mechanism is retracted, the sealing mechanism is in sealing fit with the water outlet of the channel, and the inner barrel independently holds washing water; when draining, the output end of the driving mechanism stretches out to separate the sealing mechanism from the channel water outlet, and the channel water outlet is opened to drain water.
The driving mechanism further comprises a reciprocating part 30 capable of reciprocating up and down and a power part 31 for driving the reciprocating part, the output end 29 is a push rod, and the push rod is connected with the reciprocating part.
Example III
As shown in fig. 5, 8 and 9, a washing machine of this embodiment includes an inner tub capable of independently holding washing water during washing, a tub bottom projection 8 is sealingly assembled or integrally formed on an inner surface of a tub bottom 4 of the inner tub, a drain opening 14 is provided on the tub bottom 4 of the inner tub, and the washing machine further includes a drain sealing device including a sealing mechanism capable of sealing the drain opening and a driving mechanism for driving the sealing mechanism to open/close the drain opening.
Further, the sealing mechanism according to the present embodiment includes a blocking member 24 and a supporting member 26, the supporting member 26 is fixedly mounted at the bottom of the inner tub and extends to the drain opening, and the blocking member 24 is slidably mounted on the supporting member:
when washing or rinsing, the plugging part is in sealing fit with the water outlet, and the inner barrel independently holds washing water; when the water is discharged, the driving mechanism drives the blocking part to open the water outlet, and the washing water in the inner barrel is discharged through the water outlet.
The drainage sealing device of this embodiment is designed on the structure of inner tub self, and sealing mechanism's shutoff part can make inner tub carry out the self sealss, and washing machine can not deposit water between inner tub and outer tub at the during operation, prevents the circumstances by the pollution, is the application of a water conservation technique to the user simultaneously, in addition, the inner tub carries out the self sealss back through sealing mechanism, and driving motor can drive inner tub rotation.
As an implementation manner of this embodiment, the supporting member 26 includes a fixing portion and a sleeving portion, the fixing portion is fixedly installed at the bottom of the inner tub and extends to the water outlet to be fixedly connected with the sleeving portion, and the sleeving portion has a hollow slideway; the plugging member 24 includes a sealing portion and a connecting portion, and the connecting portion is slidably disposed in the hollow slideway of the sleeve portion, so as to seal and separate the sealing portion from the drain opening.
Further, the part of the fixing part, which is positioned at the inner part of the water outlet and is connected with the sleeving part, is provided with a smooth structure for smoothing sliding off of thread scraps during water drainage.
Preferably, the smooth structure is a saddle-shaped structure with two high ends and a low middle.
Further preferably, the upper surface of the smooth structure is an arc surface curved downward.
Specifically, the sleeving part is a hollow sleeve, the bottom surface of the plugging part 24 is provided with a circular ring sealing part matched with the water outlet, the connecting part is a central rod arranged at the center of the circular ring sealing part, and the central rod is inserted into the sleeve and can slide relatively.
Preferably, the plugging member 24 further comprises a gasket 25, and the gasket 25 is disposed on the annular sealing portion.
In order to maintain the self-sealing of the closure member 24 and the return seal after opening the drain opening, the sealing mechanism comprises a resilient member 27, one end of the resilient member 27 being arranged to abut against the support member 26 and the other end being arranged to abut against the closure member 24, the resilient member 27 being arranged to deform when the closure member 24 is slid into a state of separation from the drain opening, whereby a resilient return seal of the closure member 24 is achieved.
Preferably, the initial state of the resilient member 27 is in a compressed state to maintain a sealing engagement between the closure member 24 and the drain opening.
As an implementation manner of this embodiment, the elastic member 27 is a compression spring, where the compression spring is sleeved in the hollow slideway of the sleeving part, and one end of the compression spring is abutted against the sleeving part, and the other end is abutted against the blocking member 24.
Further, the end of the central rod of the plugging member 24 is provided with a fixing buckle 28, the upper end of the sleeving part 1 is provided with a limiting step extending towards the inside of the hollow slideway for a certain distance, the pressure spring is sleeved on the central rod, one end of the pressure spring is abutted against the fixing buckle 28, and the other end of the pressure spring is abutted against the limiting step.
The plugging component comprises a top cover, wherein the upper end face of the top cover is an arc surface, and the lower end face of the top cover is provided with a sealing part in sealing fit with the water outlet.
Sealing working principle: the compression spring is compressed, one end of the compression spring acts on the supporting part 26, the other end of the compression spring acts on the fixing buckle 28, the fixing buckle 28 is transmitted to the whole plugging part 24 through the central rod of the plugging part 24, and the plugging part 24 compresses the water outlet at the bottom of the barrel under the action of the spring force, so that the sealing effect is achieved. As shown in fig. 8.
The working principle of drainage: when the inner barrel is ready for draining, the position coincidence of the sealing structure and the driving mechanism is realized through a locking mechanism, at the moment, the output end 29 of the driving mechanism is propped against the fixed buckle 28 to drive the top cover to move upwards, and a gap is formed between the top cover and the water outlet to realize draining. The compression spring is also compressed to the extreme position at this time. After the drain is completed, the output 29 of the drive mechanism is retracted and the cap reseals the drain under the force of the spring. As shown in fig. 9.
The design of the drainage sealing device of the embodiment adopts the conical design of the inner barrel and the sealing gasket, so that when clothes gather near the water outlet, the foreign matters are more convenient to drain under the impact of water flow and the gravity of the foreign matters. It is also advantageous to prevent accumulation of lint during long-term operation.
The sealed rubber pad is fixed on the top of the whole sealing structure, and when foreign matters are discharged by clinging to the bottom of the inner barrel, the friction damping of the inner barrel is smaller than the friction resistance of the rubber because the inner barrel is made of metal stainless steel, so that the foreign matters are discharged more easily. It is also advantageous to prevent accumulation of lint during long-term operation.
The support member 26 adopts a saddle-shaped structure to prevent the possibility of catching a main foreign object if the main foreign object contacts the bracket when the foreign object is discharged from the inner tub, assuming that the bracket is planar. The semicircular structure design reduces damping, and is also beneficial to preventing accumulation of long-time running line scraps.
The sleeve part of the supporting part 26 can be excessively matched with the central rod of the plugging part 24, so that thread scraps and foreign matters are effectively prevented from entering the spring cavity, and the spring is blocked when working.
Preferably, the driving mechanism may select a drain valve, and the holding of the drain valve is larger than the diameter of the inner cylinder of the fixing buckle 700, so as to ensure that the holding thrust of the drain valve acts on the fixing buckle, prevent the thrust from directly acting on the central rod of the plugging member 100, and have the hidden danger of falling off. The elastic buckle can be fixed by using screw thread fit.
The washing machine of this embodiment includes the outside water collecting device of setting in interior bucket, and drainage sealing device still includes actuating mechanism, actuating mechanism install on water collecting device corresponding to sealing mechanism, actuating mechanism has the output 29 that can stretch out and draw back from top to bottom:
during washing or rinsing, the output end of the driving mechanism is retracted, the sealing mechanism is in sealing fit with the water outlet of the channel, and the inner barrel independently holds washing water; when draining, the output end of the driving mechanism stretches out to separate the sealing mechanism from the channel water outlet, and the channel water outlet is opened to drain water.
The driving mechanism further comprises a reciprocating part 30 capable of reciprocating up and down and a power part 31 for driving the reciprocating part, the output end 29 is a push rod, and the push rod is connected with the reciprocating part.
Further, as shown in fig. 5, in this embodiment, a locking hole 16 for locking the inner tub is provided on the outer wall of the bottom of the inner tub, and the locking mechanism is mounted on the water collecting device, and the locking mechanism has a locking rod that moves up and down, and the locking rod moves up and inserts into the locking hole to lock the inner tub, and then the output end of the driving device extends out to jack the sealing mechanism for draining.
Example IV
As shown in fig. 10 and 11, the present embodiment provides a washing machine including an inner tub capable of independently holding washing water during washing, a drain port 14 provided at a tub bottom 4 of the inner tub, and a drain sealing device including a sealing mechanism including a blocking member provided at the drain port, the blocking member being reciprocally movable laterally along an outer wall surface of the tub bottom of the inner tub to open/close the drain port.
The drainage sealing device of the aporate inner barrel washing machine of the embodiment is easier to open in a stress way due to transverse reciprocating motion when the drainage outlet is opened, and has simple structure and easy realization.
Further, the plugging member according to the present embodiment includes a guide rail (not shown) fixed to the bottom of the inner tub and a plugging slider 32 reciprocally slidably disposed in the guide rail, the plugging slider 32 including a plugging portion for opening/closing the drain port 14 during reciprocal sliding of the plugging slider.
The sealing mechanism in this embodiment includes an elastic member 27, one end of the elastic member 27 is stopped against the guide slideway or the bottom of the inner barrel, and the other end is stopped against the sealing slide block 32, where the elastic member 27 deforms when the sealing slide block 32 slides to a state separated from the water outlet 14, so as to provide an elastic force for resetting and sealing the sealing slide block 32.
Preferably, the initial state of the elastic member 27 is in a compressed state to keep the closing slider 32 closing the drain opening 14 in a closed state.
Further, the drain channel 34 is provided on the plugging slider 32, and in the initial state, the plugging portion of the plugging slider 32 plugs the drain opening 14 to keep the closed state, and the plugging slider 32 slides along the guiding slideway until the drain channel 34 on the plugging slider 32 is communicated with the drain opening 14, so as to drain.
The solution of the present embodiment of setting the drain channels 34 on the plugging slider 32 is more suitable for a manner of having a plurality of drain openings, specifically, the bottom 4 of the inner barrel is provided with N drain openings 14, and the plugging slider 32 has N plugging portions corresponding to the N drain openings 14 one by one and at least (N-1) drain channels 34.
The washing machine of this embodiment includes a water collecting device disposed outside the inner tub, and the drain sealing device further includes a driving mechanism mounted on the water collecting device corresponding to the sealing mechanism, the driving mechanism having a reciprocally movable output end 29:
during washing or rinsing, the output end 29 of the driving mechanism is retracted, the sealing mechanism is in sealing fit with the channel water outlet, and the inner barrel independently holds washing water; when draining, the output end 29 of the driving mechanism extends out to separate the sealing mechanism from the channel water outlet, and the channel water outlet is opened to drain water.
The driving mechanism in this embodiment includes an output end 29 capable of up-and-down reciprocating motion and a power component 31 for driving the output end 29, the plugging component further includes a mating portion 33, the mating portion 33 has an inclined cross section, the output end 29 moves upward to be stopped on the mating portion 33, and the output end 29 continues to move upward to press the mating portion to provide driving force for horizontal movement of the plugging component.
The output end 29 is a push rod, the push rod is provided with an inclined end surface, and in the upward movement process of the push rod, the inclined end surface is attached to the inclined section to push the horizontal movement of the plugging member to open the water outlet.
The driving mechanism further includes a reciprocating member 30 reciprocally movable up and down, and the jack is connected to the reciprocating member 30.
Further, in this embodiment, a locking hole 16 for locking the inner tub with a locking mechanism 17 is provided on the outer wall of the bottom of the inner tub, the washing machine further includes a locking mechanism mounted on the water collecting device, the locking mechanism has a locking rod moving up and down, the locking rod moves up and inserts into the locking hole to lock the inner tub, and the output end of the driving device extends out to jack the sealing mechanism for draining.
The above embodiments may be tried alone or may be combined with each other to form further combinations.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (15)
1. The inner barrel of the washing machine comprises a barrel bottom and a barrel body, and is characterized in that the barrel body is provided with a closed area, a water containing cavity capable of independently containing washing water is formed by the closed area and the barrel bottom, and a barrel bottom protruding part protruding towards the inner part of the inner barrel is assembled in a sealing way or integrally formed on the inner surface of the barrel bottom;
the barrel bottom bulge comprises at least one barrel bottom bulge, and the barrel bottom bulge comprises an ascending section gradually rising from the edge of the barrel bottom to the center and a descending section gradually lowering from the center of the barrel bottom to the edge;
a plurality of water outlets are arranged at the lowest position on the barrel bottom, and are distributed in the same circular ring;
and a locking hole for locking the inner barrel by matching with the locking mechanism is formed in the outer wall of the barrel bottom.
2. The washing machine inner tub as claimed in claim 1, wherein the tub bottom protrusion is formed of an integrally formed structure of an inner surface of the tub bottom.
3. The inner tub of the washing machine as claimed in claim 2, wherein the inner surface of the tub bottom has a plurality of tub bottom protrusions uniformly distributed along a circumference of the tub bottom.
4. A washing machine inner tub as claimed in any one of claims 1-3, characterized in that the drain openings are arranged on the tub bottom near the edge, and that at least one drain opening is inscribed circumferentially on the tub bottom edge or the ring is inscribed circumferentially on the tub bottom edge.
5. A washing machine inner tub as claimed in any one of claims 1 to 3, wherein a tub body protrusion protruding toward an inside of the inner tub is assembled in a sealed state or integrally formed with an inner surface of the tub body, the tub body protrusion being formed of an integrally formed structure of the inner surface of the tub body, and the tub body protrusion being parallel to a central axis of the inner tub.
6. The inner tub of the washing machine as claimed in claim 5, wherein the tub inner surface has a plurality of tub protrusions uniformly distributed along a circumference of the tub.
7. A washing machine inner tub as claimed in any one of claims 1-3, characterized in that the locking hole is a blind hole.
8. A washing machine with an inner tub of the washing machine as claimed in any one of claims 1-7, characterized in that it comprises a driving motor, the central axis of the inner tub is arranged vertically, the tub mouth of the inner tub faces upwards, and the output shaft of the driving motor is fixedly connected with the tub bottom of the inner tub to directly drive the inner tub to rotate.
9. The washing machine as claimed in claim 8, further comprising a water collecting device having an open water collecting chamber, at least a tub bottom of the inner tub being disposed in the water collecting chamber for collecting washing water discharged from the inner tub; the driving motor is arranged at the bottom of the water collecting device, and an output shaft of the driving motor penetrates through the water collecting device to be directly and fixedly connected with the bottom of the inner barrel.
10. The washing machine as claimed in claim 9, further comprising a drain sealing means provided on the water collecting means, a plurality of drain openings being provided at a lowermost position on the tub bottom, the drain sealing means including a sealing mechanism capable of sealing the drain openings and a driving mechanism driving the sealing mechanism to open/close the drain openings.
11. A control method of a washing machine as claimed in any one of claims 8 to 10, wherein the washing machine controls the driving motor to drive the inner tub to rotate forward and backward during washing, and controls the driving motor to drive the inner tub to rotate at a unidirectional high speed during dehydrating.
12. The control method of the washing machine as claimed in claim 11, wherein the washing machine controls the inner tub to rotate forward at the first acceleration for a first set time during the washing process, and controls the inner tub to rotate backward at the second acceleration for a second set time after the forward rotation is completed, and performs the forward rotation again after the backward rotation is completed, thereby cycling.
13. The control method of the washing machine as claimed in claim 12, wherein the unidirectional operation time and the stop time of the driving motor are adjusted with increasing/decreasing of the load capacity of the washing machine, and are in positive correlation with the load capacity of the washing machine.
14. The control method of a washing machine as claimed in claim 13, wherein the time of the unidirectional operation of the driving motor is 1.5-5S, and the time of the unidirectional stop of the driving motor is 1.5-5S.
15. The control method of a washing machine as claimed in claim 14, wherein the time of the unidirectional operation of the driving motor is 2-4S, and the time of the unidirectional stop of the driving motor is 2-4S.
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Effective date of registration: 20231114 Address after: No.16 Huatian north, Ronggui high tech Zone, Shunde District, Foshan City, Guangdong Province, 528306 Applicant after: FOSHAN SHUNDE HAIER ELECTRIC Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant before: Haier Smart Home Co., Ltd. |
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