CN111492104A - Washing machine - Google Patents
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- CN111492104A CN111492104A CN201880082452.5A CN201880082452A CN111492104A CN 111492104 A CN111492104 A CN 111492104A CN 201880082452 A CN201880082452 A CN 201880082452A CN 111492104 A CN111492104 A CN 111492104A
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- ozone
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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
- 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
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- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention provides a washing machine, which can protect an ozone electrolysis part from being damaged in a mode of not generating residual substances and can keep the sterilization and deodorization effects. The washing machine is provided with: a water supply path (3a) for supplying water to the washing tub (1 b); and an ozone generating device (4) for generating ozone in the water supply path (3 a). The ozone generation device (4) comprises an ozone electrolysis unit (41), wherein the ozone electrolysis unit (41) is disposed in an ozone generation region (Ar) that is disposed substantially horizontally in a part of the water supply path (3a), and a water supply valve (31) that opens and closes the water supply path (1a) is disposed above the ozone generation region (Ar) and upstream thereof. During the repeated opening and closing operation of the water supply valve (31), the ozone electrolysis unit (41) of the ozone generation device (4) is always kept immersed in water in the ozone generation region (Ar).
Description
The present invention relates to a washing machine which improves washing capacity by generating ozone water inside.
Conventionally, ozone water is used for washing. For example, patent document 1 discloses a cleaning machine for cleaning an object to be cleaned. The cleaning machine is provided with: a cylinder capable of accumulating water for cleaning an object to be cleaned; an electrolyzed water producing device for producing electrolyzed water by electrolyzing water; and a drainage mechanism for draining the water stored in the cylinder. Further, the cartridge cleaning operation executing section is configured to: after a sufficient time of sterilization has elapsed in the state in which electrolytic water of a predetermined concentration generated by the electrolytic water generation device is stored in the cartridge, a cartridge cleaning operation is executed to operate the drainage mechanism and drain the electrolytic water in the cartridge.
Further, patent document 2 discloses an electrolytic water discharge device for discharging electrolytic water generated by electrolysis to a body part of an animal or human for cleaning or disinfection. The electrolytic water generation and discharge device is provided with: an electrolysis unit which generates electrolytic water by electrolyzing supplied water or an aqueous solution using an electrolysis electrode using a diamond electrode as at least an anode; a nozzle connected to the electrolysis unit; a pump that supplies water or an aqueous solution to the electrolysis unit at a predetermined flow rate and discharges electrolyzed water generated by the electrolysis unit from the nozzle; and a control unit for controlling the operation of the electrolysis unit and the pump. Furthermore, the control unit is configured to: the electrolytic water is intermittently discharged from the nozzle by controlling the operation of the electrolysis unit and the pump to be repeatedly started and stopped at predetermined time intervals.
However, patent document 1 has a problem that: sodium hypochlorite, which is a main component of the acidic electrolyzed water generated in the intermediate process, remains.
On the other hand, patent document 2 has a problem that: it is a portable ozone water generator, used for cleaning the trauma parts of animals and human beings, so the discharge amount of the generated ozone water is small.
Therefore, in order to continuously remove bacteria and deodorize without generating residual substances by generating ozone, it is considered as an effective means to generate ozone by disposing an ozone electrolysis unit in the water supply passage. The ozone electrolysis section herein includes an ozone electrode and an electrolytic film.
However, the present inventors have found that the desired effect cannot be achieved by arranging the ozone electrolysis unit in a messy manner. For example, when the ozone electrolysis unit is driven with a constant current, the resistance value increases when the electrolytic film of the ozone electrolysis unit is dried, and as a result, the voltage increases. Further, even in the case where the voltage is measured after the ozone electrolysis part is immersed in water once, and the electrolysis voltage is measured after the ozone electrolysis part is immersed in water after a certain time has elapsed after the ozone electrolysis part is pulled up once, the initial tendency of the electrolysis part is an increase in resistance value, with the result that the voltage increases. The increase in electrolytic voltage causes the deterioration of the membrane, and the damage and breakage of the ozone electrolysis part are accelerated.
It was found that this voltage rise causes impurities to adhere between the electrodes by electrolysis during drying. Therefore, it is advantageous to prevent the electrolyte membrane from being repeatedly wetted and dried, thereby reducing the deterioration of the electrolyte membrane. Therefore, it is desirable that the ozone electrolysis unit is immersed in water once and then immersed in water.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2004-73248
Patent document 2: japanese patent laid-open No. 2012 and 161762
Disclosure of Invention
Problems to be solved by the invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a washing machine which can protect an ozone electrolysis unit from damage without generating a residual substance and can maintain sterilization and deodorization effects.
Means for solving the problems
In order to solve the above problems, the present invention adopts the following solutions.
Specifically, the washing machine of the present invention includes: a water supply path for supplying water to the washing tub; and an ozone generating device that generates ozone in the water supply path, wherein the ozone generating device includes an ozone electrolysis unit that is disposed in an ozone generation region that is disposed substantially horizontally in a part of the water supply path, and a valve that opens and closes the water supply path is disposed above and upstream of the ozone generation region, and the washing machine is configured such that: during the repeated opening and closing operation of the valve, the ozone electrolysis unit of the ozone generation device is always maintained in a state of being immersed in water in the ozone generation region.
Further, the washing machine of the present invention includes: a washing machine main body; an outer tub disposed in the washing machine main body; and a drum rotatable in the outer tub, wherein an ozone generation region of the water supply path is disposed in the vicinity of an upper wall of the washing machine main body at a position adjacent to a rear surface of the outer tub, the water supply path on at least one of an upstream side and a downstream side of the ozone generation region is provided so as to be bent with respect to the ozone generation region, and the ozone electrolysis unit is insertable into and removable from the ozone generation region by the bent portion.
The washing machine of the present invention is characterized in that the ozone generation pipe constituting the ozone generation region is composed of a pair of pipe sections arranged in series with a gap therebetween, and an elastic cylinder body liquid-tightly connecting the pipe sections, the elastic cylinder body being supported by the washing machine main body via a support member, and the ozone electrolysis section being insertable into and removable from each of the pipe sections via a bent portion of the water supply path on the upstream side and a bent portion of the water supply path on the downstream side.
Further, the washing machine of the present invention is a washing machine including a control unit that controls opening and closing of the valve and on/off of power supply to the ozone electrolysis unit, wherein the control unit performs control such that: when the sterilization of the washing process is started, the valve is switched from the closed state to the open state, and the energization of the ozone electrolysis unit is switched from off to on after a predetermined time has elapsed since the switching of the valve or after the direct or indirect detection of the rise of the water level in the drum.
Further, the washing machine of the present invention is a washing machine including a control unit for controlling opening and closing of the valve and on/off control of power supply to the ozone electrolysis unit, wherein the control unit performs control such that: when sterilization in a washing process is stopped, the energization of the ozone electrolysis unit is switched from on to off, and after a predetermined time has elapsed from the switching, the energization of the ozone electrolysis unit is switched from on to off.
In addition, the present invention is characterized in that the controller performs control such that a ratio of the rotational operation time to one cycle of the drum is smaller than a ratio of the rotational operation time to one cycle in a normal washing process, when the sterilization process is a sterilization rinsing process in which rinsing is performed while ozone water is supplied in a state in which the energization to the ozone electrolysis unit is turned on.
Effects of the invention
The washing machine of the present invention arranges the ozone electrolysis part in the approximately horizontal ozone generating area, and supplies water to the ozone generating area in the downstream area through the valve arranged above, therefore, even if the valve is repeatedly opened and closed, because the water supply path becomes negative pressure when the valve is closed, the ozone generating area is approximately horizontally arranged, and the state of water stored in the ozone generating area can be maintained. As a result, the ozone electrolysis unit is always kept immersed in water, and stable energization can be performed while suppressing a voltage rise. The sterilization and deodorization effects can be maintained without generating residual substances and damaging the ozone electrolysis part.
In the washing machine according to the present invention, in the structure in which the outer tub accommodating the drum is disposed in the washing machine main body, the ozone generation region of the water supply path is horizontally disposed in the vicinity of the upper wall of the washing machine main body at a position adjacent to the rear surface of the outer tub, and therefore, interference with the drum, the outer tub, the driving device, and other piping can be easily avoided, and the influence on the product height can be suppressed. Further, since the water supply paths upstream and downstream of the ozone generation region are bent, it is easy to realize a structure in which the ozone electrolysis unit can be inserted and removed from the bent portion while being arranged as compactly as possible.
The ozone generating pipe of the washing machine of the present invention is configured such that a pair of pipe sections are connected by an elastic cylindrical body, and the ozone generating pipe is supported by the cylindrical body and the ozone electrolyzing section can be inserted into and removed from each pipe section through the upstream-side or downstream-side bent section. Therefore, excessive stress on the ozone electrolysis unit can be avoided, and the ozone electrolysis unit can be easily put in or taken out. Further, the sterilization effect can be further improved by the structure in which the washing water is caused to flow through the two ozone electrolysis units.
In addition, the washing machine of the present invention controls the opening and closing of the valve and the energization of the ozone electrolysis unit by the control unit, and performs control to switch the energization of the ozone electrolysis unit to the on state after the valve is opened, so that even if the ozone electrolysis unit is immersed in water, for example, it is possible to prevent the ozone electrolysis unit from being damaged by boiling of the water.
In addition, the washing machine of the present invention controls the valve to be opened and closed and the valve to be closed after the control unit turns off the power supply to the ozone electrolysis unit each time the control unit controls the valve to be opened and closed and the power supply to the ozone electrolysis unit, and thus prevents the ozone electrolysis unit from being damaged by boiling of water even if the ozone electrolysis unit is immersed in water, for example.
In addition, in the sterilizing rinsing process in which the ozone water is supplied and the rinsing is performed while the energization to the ozone electrolysis unit is turned on, the control unit performs control such that the ratio of the rotational operation time to one cycle is smaller than the ratio of the rotational operation time to one cycle in the normal washing process every time the rotational control is performed for a predetermined cycle of the drum, and therefore, the sterilizing rinsing can be performed efficiently while preventing the generated ozone from being immediately lost.
Fig. 1 is a front view of a schematic diagram showing a schematic configuration in a washing machine according to an embodiment of the present invention.
Fig. 2 is a schematic side sectional view showing a general structure including an external appearance of a washing machine according to an embodiment of the present invention.
Fig. 3 is a perspective view showing a specific assembly structure around an ozone electrolysis unit in a washing machine according to an embodiment of the present invention.
Fig. 4 is a longitudinal sectional view of a water supply path around an ozone electrolysis unit in a washing machine according to an embodiment of the present invention.
Fig. 5 is a flowchart showing steps at the start of sterilization in the washing machine according to the embodiment of the present invention.
Fig. 6 is a flowchart showing steps performed when sterilization is stopped in the washing machine according to the embodiment of the present invention.
Fig. 7 is a flowchart showing steps of a sterilizing rinsing process of a washing machine according to an embodiment of the present invention.
Description of the reference numerals
1: a washing machine main body; 1 a: an upper wall; 1 b: a washing tub; 2: a drum; 3: an outer cylinder; 3 a: a water supply path; 3 d: a rear surface; 3x, 3 y: a bending section; 4: an ozone generating device; 5: a support member (bracket); 31: a valve (water supply valve); 33 c: a piping section; 33 d: an elastic cylinder; 41: an ozone electrolysis unit; ar: an ozone generation region; c: a control unit; w: a washing machine.
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
Fig. 1 is a front view schematically showing the structure of the inside of a drum-type washing machine W, fig. 2 is a schematic side sectional view schematically showing the structure of the washing machine W including the external appearance, fig. 3 is a perspective view showing a specific assembly structure of the ozone electrolysis unit in the washing machine W, and fig. 4 is a longitudinal sectional view of a water supply path around the ozone electrolysis unit in the washing machine W.
The washing machine body 1 has a substantially rectangular parallelepiped shape. An opening 11 for taking laundry into the drum 2 is formed in the front surface 10a of the washing machine main body 1, and an opening/closing cover, not shown, is attached to the opening 11 to be openable and closable. An outer tub 3 is disposed outside the drum 2, and the drum 2 and the outer tub 3 constitute a washing tub 1 b. The washing tub 1b is assembled with the shaft core directed in a substantially horizontal direction.
The outer tub 3 is a bottomed cylindrical member disposed inside the washing machine main body 1 and having a side surface 3c and a rear surface 3d, and can store washing water therein.
A water supply path 3a for supplying washing water to the inside and a discharge path 3b for discharging washing water to the outside are connected to the outer tub 3. The water supply path 3a is provided with a water supply valve 31, and the discharge path 3b is provided with a water discharge valve 32. The water supply valve 31 uses an electromagnetic valve, and the drain valve 32 uses a torque motor controlled drain valve. The control unit C inputs opening/closing signals Sv1, Sv2 to these valves 31, 32. The water supply valve 31 is a water supply valve dedicated to ozone, and in addition to the water supply valve 31, there is a water supply valve (not shown) for supplying normal washing water, and the opening and closing of the valve is controlled by the control unit C. The water supply valve 31 is operated only during the aseptic rinsing.
The drum 2 is a bottomed cylindrical member disposed coaxially with the outer cylinder 3 in the outer cylinder 3 and rotatably supported. The drum 2 is capable of accommodating laundry therein and has a plurality of water passing holes in its wall surface.
The drum 2 is driven by a drive Dr. The driving device Dr is a member that rotates the pulley 15 and the belt 15b by the motor 10, and also rotates the drive shaft 17 extending toward the bottom portion 2d of the drum 2 to apply a driving force to the drum 2, thereby rotating the drum 2. The motor 10 is controlled by the inverter 34, and a control signal Sm is input from the control unit C to the inverter 34.
In the above configuration, the present embodiment includes the ozone generator 4 for generating ozone in the water supply path 3a for sterilization. The ozone generating device 4 includes an ozone electrolysis unit 41 disposed in an ozone generating area Ar, the ozone generating area Ar is disposed substantially horizontally in a part of the water supply path 3a, and the water supply valve 31 as a valve of the present invention for opening and closing the water supply path 3a is disposed above and upstream of the ozone generating area Ar. Also, the present embodiment is configured to: while the opening and closing operation of water supply valve 31 is repeated, ozone electrolysis unit 41 of ozone generation device 4 is always kept immersed in water in ozone generation area Ar.
That is, when water supply valve 31 is closed upstream of ozone generation area Ar while opening and closing operation of water supply valve 31 is repeated, water supply path 3a becomes negative pressure, and ozone generation area Ar is arranged substantially horizontally, so that the state in which water is stored therein can be maintained. As a result, the ozone electrolysis unit 41 is always kept immersed in water, and stable energization can be performed while suppressing a voltage rise. Further, if the ozone generation region Ar is disposed vertically, there is a risk that water in the pipe part is completely discharged when air enters and the ozone electrolysis part 41 is in a dry-fire state, whereas if it is disposed horizontally, there is a low risk that the ozone electrolysis part is in a dry-fire state even if air enters.
Specifically, as shown in fig. 2 to 4, the ozone generation region Ar of the water supply path 3a is constituted by an ozone generation pipe 33, and the ozone generation pipe 33 is disposed near the upper wall 1a of the washing machine main body 1 at a position adjacent to the rear surface 3d of the outer tub 3, and is suspended and supported by the washing machine main body 1 via a bracket 5 as a support member. In the ozone generating pipe 33, a first connection portion 33a extending upward is formed on the upstream side, and a second connection portion 33b extending downward is formed on the downstream side.
The first connection portion 33a is connected to the water supply valve 31 via a first pipe line 35a, and the second connection portion 33b is connected to a water supply port 3d1 provided on the rear surface of the outer tub 3 via a second pipe line 35 b. The first connecting portion 33a is formed in a funnel shape, and has a small diameter toward the inlet of the ozone generation region Ar. In order to improve the electrolytic efficiency of the ozone electrolysis unit, the diameter of the ozone generation pipe 33 is also made substantially the same. An introduction pipe 36 for introducing washing water from the outside is connected to the water supply valve 31, and when the water supply valve 31 is opened, the washing water from the outside flows into the water supply path 3a and is supplied to the washing tub 1b through the water supply port 3d 1.
That is, the structure is as follows when viewed from the ozone generating pipe 33 forming the ozone generating region Ar: the washing water falls from the upstream side, flows in from the first connecting portion 33a at one end side, flows substantially horizontally inside, falls from the second connecting portion 33b in the downstream area, and flows out.
Since the ozone generation region Ar is disposed substantially horizontally in this manner, it is easy to avoid interference with the drum 2 or the outer cylinder 3, the driving device Dr, and other piping, and to suppress an influence on the product height.
As shown in fig. 4, the ozone generating pipe 33 is composed of a pair of pipe parts 33c, 33c arranged in series with a gap therebetween, and an elastic cylindrical body 33d liquid-tightly connecting the opposite ends of the pipe parts 33c, and the elastic cylindrical body 33d is suspended and supported by the upper wall 1a of the washing machine main body 1 via the bracket 5. The other end portions of the piping portions 33c and 33c are opened horizontally at the upward crank-shaped bent portion 3x on the upstream side and at the downward crank-shaped bent portion 3y on the downstream side, respectively, and the ozone electrolyzing portion 41 can be inserted and removed through these openings. The ozone electrolysis unit 41 has a structure in which a flange 41a is attached to the base end thereof and the flange 41a can be screwed to the open end of the pipe portion 33 c. A wire 41b for passing electricity to the ozone electrolysis portion 41 is drawn out from the flange portion 41a and connected to the electricity passing portion 40 as shown in fig. 2. An energization on/off signal Se is input from the control unit C to the energization unit 40. The wiring 41b is disposed so as to pass through the fuse 4x provided in the piping part 33c, and in the event of overheating, the fuse 4x is cut to protect the ozone electrolysis part 41.
In this way, since the ozone generator 4 is provided such that the pair of electrolysis units 41 and 41 are connected in series to electrolyze water to generate ozone, the ozone concentration can be increased by the electrolysis unit 41 after the water is initially preliminarily sterilized and purified by the electrolysis unit 41, and thus, the necessary concentration and the necessary amount of ozone water can be stably supplied to the washing tub 1 b. Further, in the case where preliminary sterilization is not required, the concentration of the ozone water supplied to the washing tub 1b can be further increased. Furthermore, no residual substance is generated by the generation of ozone.
Further, since the ozone generator 4 is horizontally arranged and the electrolysis units 41 and 41 can be inserted into and removed from the bent portions 3x and 3y on both sides, the ozone electrolysis unit 41 can be always kept immersed in water as the ozone electrolysis unit 41 is arranged substantially horizontally. Further, since only the aged electrolytic unit 41 needs to be cleaned or replaced, and a long electrode or a special electrode is not required, the maintenance of the ozone electrolytic unit 41 is easy, which contributes to cost reduction.
In the present embodiment thus configured, control unit C controls opening and closing of water supply valve 31 and on/off of energization to ozone electrolysis unit 41.
In the present embodiment, the control unit C performs rotation control of the drum 2 by the motor 10 and on/off control of energization to the ozone electrolysis unit 41.
The steps performed by the control unit C will be described below based on the flowcharts of fig. 5 to 7.
First, FIG. 5 shows a sequence at the start of sterilization.
< step S1>
In step S1, control unit C switches water supply valve 31 from off to on. Thereby, water supply to the washing tub 1b via the ozone generating device 4 is started.
< step S2>
Next, the controller C determines in step S2 whether the water level in the drum 2 has started to rise. For this purpose, a signal of a water level sensor or a water flow sensor, not shown, provided in the washing machine main body 1 is input to the control unit C. Then, the process proceeds to step S3 if yes, and repeats step S2 if no.
< step S3>
Receiving the determination result of yes in step S2, control unit C switches the energization of ozone electrolysis unit 41 from off to on in step S3. Thereby, the ozone electrolysis unit 41 electrolyzes the washing water to generate ozone.
Thus, the control unit C performs the following control: when the sterilizing rinsing in the washing process is started, water supply valve 31 is switched from the closed state to the open state, and the energization of ozone electrolysis unit 41 is switched from off to on after the rise of the water level in drum 2 is directly or indirectly detected.
That is, since the water supply is started first and then the ozone electrolysis unit is turned on, even if the ozone electrolysis unit 41 is immersed in water, for example, it is possible to prevent the ozone electrolysis unit 41 from being damaged by boiling of water. Of course, instead of the measurement of the rise in water level, the energization may be switched after a predetermined time has elapsed from the switching of water supply valve 31.
FIG. 6 is a sequence when the sterilization is stopped. The sequence of stopping the sterilization is started by the control unit C at a predetermined timing.
< step S11>
In step S1, control unit C switches the energization to ozone electrolysis unit 41 from on to off. Thereby, the ozone electrolysis unit 41 stops the electrolysis of the washing water.
< step S12>
Next, the control unit C determines in step S12 whether or not a predetermined time has elapsed since the energization of the ozone electrolysis unit 41 was turned off. This is because the electrolysis phenomenon does not stop instantaneously. Then, the process proceeds to step S13 if yes, and repeats step S12 if no.
< step S13>
Receiving the determination result of yes in step S12, control unit C switches water supply valve 31 from open to closed in step S13. Thereby, the supply of water to the washing tub 1b via the ozone generating device 4 is stopped.
Thus, the control unit C performs the following control: when sterilization during washing is stopped, the energization of the ozone electrolysis unit 41 is switched from on to off, and after a predetermined time has elapsed from the switching, the energization of the ozone electrolysis unit 41 is switched from on to off.
That is, since the water supply is stopped after the ozone electrolysis unit 41 is disconnected, even if the ozone electrolysis unit 41 is immersed in water, for example, the ozone electrolysis unit 41 is prevented from being damaged by boiling of water.
FIG. 7 shows the sequence of the sterile rinsing. Sterilization accompanying water supply from the water supply path 3a and rotation of the drum 2 are performed under certain conditions.
< Steps S21, S21a >
The control unit C stops the drum 2 in step S21. When the drum is stopped, the water supply valve 31 is switched from off to on, and the ozone electrolysis unit 41 is also switched from off to on to supply ozone until the water level reaches a set water level. If it is determined in step S21a that the set water level has been reached, yes is passed to step S22.
< step S22>
The control unit C starts the rotation of the drum in step S22. At this time, water supply valve 31 is switched from open to closed, and ozone electrolysis unit 41 is also switched from on to off.
< step S23>
After the drum starts rotating, the controller C determines whether the water level is lower than a predetermined water level in step S23. If "no", the next step S24 is skipped, and if "yes", the ozone replenishment step of step S24 is performed.
< step S24>
If yes in step S23, controller C rotates drum 2 forward and backward at a constant cycle until the drum returns to a predetermined water level, switches water supply valve 31 from off to on, and switches the power supply to ozone electrolysis unit 41 from off to on to supply ozone water. The drum rotation control by the controller C in the ozone water replenishment process is different from the normal washing process, and the ratio of the drum rotation operation time to one cycle is different from the drum rotation off time. For example, in the process of supplying the washing water other than the ozonated water or the process of the step S22 of not supplying the ozonated water, when the drum rotation operation time is set to 8 seconds and the drum rotation off-time is set to 2 seconds, in the state where the drum rotation operation time is 2 seconds and the drum rotation off-time is 8 seconds at the time of ozonated water supply, the drum rotation operation time occupying one cycle is reduced and the drum off-time is increased, thereby preventing the ozone from being immediately disappeared.
< step S25>
The control unit C determines in step S25 whether or not a predetermined time has elapsed since the drum started to rotate. For this reason, the controller C operates the timer in advance when the sterilizing rinsing process is started. If yes, the process ends, and if no, the process returns to step S22.
In this way, in the sterilization rinsing process in which the ozone water is supplied and the rinsing is performed while the ozone electrolysis unit 41 is energized, the controller C performs control such that the ratio of the rotational operation time to one cycle is smaller than the ratio of the rotational operation time to one cycle in the normal washing process every time the controller C performs the rotational control of the drum 2 for a predetermined cycle.
That is, even if ozone is generated, it is easily extinguished by the water current generated when the drum 2 rotates. On the other hand, if the ratio of the rotation operation time to one cycle of the drum 2 is reduced in the ozone water replenishment process as in the present embodiment, the ozone generated can be prevented from being immediately eliminated, and the sterilization rinsing can be efficiently performed.
Although one embodiment of the present invention has been described above, the specific configuration of each part is not limited to the above embodiment.
For example, although the ozone generating device 4 is constituted by a pair of ozone electrolyzing parts 41 in the above embodiment, only one ozone electrolyzing part 41 may be provided, and in this case, the ozone electrolyzing part 41 may be inserted from one side or the other side of the ozone generating area Ar.
The ozone generator 4 may be disposed on the ordinary water supply line, or may be disposed on a dedicated ozone water supply line separate from the ordinary water supply line.
Other configurations can be variously modified within a range not departing from the idea of the present invention.
Claims (6)
- A washing machine is provided with: a water supply path for supplying water to the washing tub; and an ozone generating device for generating ozone in the water supply path,the ozone generating device comprises an ozone electrolysis part which is arranged in an ozone generating area which is approximately horizontally arranged at a part of the water supply path, a valve for opening and closing the water supply path is arranged above and at the upstream of the ozone generating area,the washing machine is configured to: during the process of repeatedly opening and closing the valve, the ozone electrolysis part of the ozone generating device is always maintained in a state of being immersed in water in the ozone generating area.
- The washing machine as claimed in claim 1,the disclosed device is provided with: a washing machine main body; an outer tub disposed in the washing machine main body; and a drum rotatable within the outer tub,the ozone generating region of the water supply path is disposed in the vicinity of the upper wall of the washing machine main body at a position adjacent to the rear surface of the outer tub, and the water supply path on at least one of the upstream side and the downstream side of the ozone generating region is provided so as to be bent with respect to the ozone generating region, and the ozone electrolyzing part can be inserted into and removed from the ozone generating region by the bent portion.
- A washing machine according to claim 2,the ozone generating pipe constituting the ozone generating region is composed of a pair of pipe sections arranged in series with a gap therebetween, and an elastic cylinder body for liquid-tight connection between the two pipe sections, the elastic cylinder body being supported by the washing machine main body via a support member, and the ozone electrolysis section being insertable into and removable from each of the pipe sections via a bent portion of the water supply path on the upstream side and a bent portion of the water supply path on the downstream side.
- A washing machine according to any one of claims 1 to 3,a control unit for controlling the opening and closing of the valve and controlling the on/off of the current to the ozone electrolysis unit,the control unit performs the following control: when the sterilization of the washing process is started, the valve is switched from the closed state to the open state, and the energization of the ozone electrolysis unit is switched from off to on after a predetermined time has elapsed since the switching of the valve or after the direct or indirect detection of the rise of the water level in the drum.
- A washing machine according to any one of claims 1 to 4,a control unit for controlling the opening and closing of the valve and controlling the on/off of the current to the ozone electrolysis unit,the control unit performs the following control: when sterilization in a washing process is stopped, the energization of the ozone electrolysis unit is switched from on to off, and after a predetermined time has elapsed from the switching, the energization of the valve is switched from on to off.
- A washing machine according to any one of claims 1 to 5,a control part for controlling the rotation operation/stop of the drum in a predetermined period and turning on/off the power supply to the ozone electrolysis part,in the case where the sterilization process is a sterilization rinsing process in which rinsing is performed while ozone water is supplied in a state where the energization of the ozone electrolysis unit is turned on, the controller performs control such that a ratio of the rotational operation time to one cycle of the drum is smaller than a ratio of the rotational operation time to one cycle in a normal washing process.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-252958 | 2017-12-28 | ||
| JP2017252958A JP7093072B2 (en) | 2017-12-28 | 2017-12-28 | washing machine |
| PCT/CN2018/123695 WO2019129017A1 (en) | 2017-12-28 | 2018-12-26 | Washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111492104A true CN111492104A (en) | 2020-08-04 |
| CN111492104B CN111492104B (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201880082452.5A Active CN111492104B (en) | 2017-12-28 | 2018-12-26 | Washing machine |
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|---|---|
| JP (1) | JP7093072B2 (en) |
| CN (1) | CN111492104B (en) |
| WO (1) | WO2019129017A1 (en) |
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| JPH06277385A (en) * | 1990-07-12 | 1994-10-04 | Samsung Electronics Co Ltd | Washer with ozone water generator |
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- 2018-12-26 WO PCT/CN2018/123695 patent/WO2019129017A1/en active Application Filing
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| KR0161040B1 (en) * | 1994-08-16 | 1998-12-15 | 김광호 | Washing machine |
| JP2006043103A (en) * | 2004-08-04 | 2006-02-16 | Matsushita Electric Ind Co Ltd | Washing machine |
| JP2006110092A (en) * | 2004-10-14 | 2006-04-27 | Sanyo Electric Co Ltd | Washing machine |
| CN101356310A (en) * | 2006-01-10 | 2009-01-28 | 三洋电机株式会社 | Washing machine and ozone generator |
| CN103260496A (en) * | 2010-12-28 | 2013-08-21 | 阿塞里克股份有限公司 | A dishwasher wherein ozone wash is applied |
| CN203821127U (en) * | 2014-04-23 | 2014-09-10 | 宁波南方电器制造有限公司 | Fully-automatic clothes washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7093072B2 (en) | 2022-06-29 |
| WO2019129017A1 (en) | 2019-07-04 |
| CN111492104B (en) | 2022-04-12 |
| JP2019118413A (en) | 2019-07-22 |
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