JP2000233160A - Cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the cleaning capability in a short time and prevent the fog of a glass instrument when an electrolytic water is utilized in the cleaning by operating an electrolytic water preparing device to decompose stored water in a tank, feeding water from a water feed line into a cleaning chamber during the decomposition of the formation, operating a cleaning mechanism and carrying out the preliminary washing. SOLUTION: At a time when the initial operation is carried out, a solenoid valve 82 is opened, and a tap water from a water feed line 4 is introduced into an electrolytic water preparing device 5 through a branch water line 8, and a stored water in the tank 50 is electrolyzed into a strong acidic water and a strong alkaline water. The preliminary cleaning is carried out in a cleaning chamber 3 at the same time of the electrolysis operation. Namely a water feed valve 42 is opened and the tap water is introduced from the water feed line 4 into the cleaning chamber 3, and a cleaning mechanism 33 is actuated. Also for the bacteria removing and cleaning treatment, a solenoid valve 63 is opened and a residual acidic water in the tank 50 is introduced into the cleaning chamber 3 through a water passing line 6 to actuate a cleaning mechanism 33. Also for the main cleaning, a solenoid valve 64 is opened and the alkaline water in the tank 50 is introduced into the cleaning chamber 3 through the water passing line 6, and the cleaning mechanism 33 is actuated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for washing and rinsing items to be washed such as tableware and test instruments such as test tubes. In particular, the present invention relates to a washing machine for washing using electrolyzed water that is strong acid water or strong alkaline water, and a washing method therefor.

[0002]

2. Description of the Related Art A washing machine that uses electrolyzed water generates electrolyzed water in an electrolyzed water generator, and sprays the generated electrolyzed water onto an object to be washed in a cleaning room. To perform cleaning (see, for example,
-296572). In such a washing machine,
It is possible to obtain high washing ability with strong alkaline water and high sterilization ability with strong acid water, and as a result, it is possible to use no detergent. Detergents generally occupy a large proportion of the running costs involved in cleaning, and therefore, it is possible to reduce running costs by using electrolytic water instead of detergents. In addition, since it is not necessary to discharge the detergent after washing, it is preferable for the natural environment.

The above-mentioned washing machine is operated, for example, in the following procedure. When the operation is started, first, the electrolyzed water is generated by the electrolyzed water generation device over a predetermined time. After a lapse of a predetermined time, required strongly acidic water and strongly alkaline water are obtained. Thereafter, the object to be washed is first washed with strong alkaline water to remove dirt, and then washed with strong acid water to remove bacteria. The above-described predetermined time from the start of operation to the start of cleaning is
Although essential for the generation of electrolyzed water, it was spent only for generation.

[0004] Meanwhile, there is a demand for a washing machine to increase the washing ability without taking much time. There are also the following problems. That is, when a transparent glass device is washed with electrolytic water, the surface of the washed device may become cloudy. Such fogging is not preferable because it impairs the finish of washing.

Accordingly, a first object of the present invention is to solve the above-mentioned technical problems and to provide a washing machine using electrolyzed water which can increase the washing ability without taking much time. is there. A second object of the present invention is to provide a washing method and a washing machine which can prevent fogging of glassware when washing with electrolytic water.

[0006]

In order to achieve this object, a washing machine according to claim 1 comprises a water supply passage for supplying water to a room, a drainage passage for discharging water from a room, and a room. A washing chamber provided with a washing mechanism for washing an object to be washed using water supplied to the tank, a tank for storing water, and the water stored in this tank is decomposed into acidic water and alkaline water by electrolysis. An electrolyzed water generator having a decomposition means, and a partition means for distinguishing decomposed acidic water and alkaline water in the tank, a water passage for supplying water in the tank to the washing chamber, and a response to an operation start signal Then, the electrolyzed water generator is operated to decompose the water stored in the tank, and during the decomposition period, water is supplied from the water supply passage to the cleaning chamber to operate the cleaning mechanism to perform the pre-cleaning. Initial operation control means And wherein the door.

According to this configuration, the object to be washed can be washed in the washing room using the water from the water supply channel by the initial operation control means. Washing can be performed using electrolytic water of alkaline water. In particular, since the object to be washed is preliminarily washed, the washing ability when electrolytic water is used thereafter can be enhanced. In addition, since the pre-cleaning uses water from the water supply channel, the pre-cleaning can be performed simultaneously with the decomposition of the water by the electrolyzed water generating device. As a result, it is possible to prevent extra time for the pre-cleaning.

According to a second aspect of the present invention, in the cleaning machine according to the first aspect, after the preliminary cleaning, the acidic water in the tank is supplied to the cleaning chamber through the water passage to operate the cleaning mechanism, and the acidic cleaning operation is performed. It is characterized by further comprising a disinfection cleaning control means for performing disinfection cleaning by water. According to this configuration, the bacteria are removed by washing with acidic water. Since the disinfection is performed after dirt has been removed by the preliminary washing, a high disinfection effect can be obtained.

According to a third aspect of the present invention, in the washing machine according to the second aspect, after the washing with the acidic water, alkaline water in the tank is supplied to the washing chamber through the water passage to operate the washing mechanism. The main cleaning control means for performing cleaning with alkaline water is further provided. According to this configuration, when washing with alkaline water, dirt such as proteins can be effectively removed. In particular, since cleaning is performed with alkaline water after dirt is removed by preliminary cleaning or cleaning with acidic water, the cleaning ability with alkaline water can be enhanced.

Further, since the cleaning with the acidic water has already been completed, it is not necessary to perform the cleaning with the acidic water after the cleaning with the alkaline water. As a result, it is possible to prevent the glass product from fogging after washing. The washing machine according to claim 4 is the washing machine according to claim 3, further comprising a heater for heating the water supplied into the washing chamber, wherein the washing control unit heats the alkaline water with the heater. Washing is performed.

According to this structure, the cleaning can be performed at a higher temperature of the alkaline water, so that the cleaning performance can be further improved. The washing machine according to the fifth aspect is the second aspect.
In the washing machine according to any one of to 4, the part of the acidic water in the tank is supplied to the washing chamber through the water passage and mixed with the water used for the preliminary washing, prior to the sterilization washing,
The apparatus further comprises a drainage disinfection control means for flowing to the drainage channel.

According to this structure, the water used for the preliminary cleaning can be disinfected by the acidic water in the cleaning chamber. Therefore, there is a possibility that the bacteria may be contained in the drainage, and the bacteria in the drainage may adhere to the drainage channel at the time of drainage. There is no risk of remaining. In addition, after the disinfecting washing, there is no possibility of the above-mentioned fear due to the disinfecting action. The washing method for a washing machine according to claim 6 is a washing method for a washing machine that can use acidic water and alkaline water when washing an object to be washed. Then, it is subjected to a disinfecting cleaning, and thereafter, a main cleaning is performed using alkaline water.

According to a seventh aspect of the present invention, there is provided a washing method for a washing machine which can use an acidic water and an alkaline water when washing an object to be washed. It is characterized in that it is preliminarily washed, followed by germicidal washing with acidic water, followed by main washing with alkaline water, and then rinsing with water. Claim 6 or Claim 7
According to the configuration described in (1), it is possible to prevent the glass article from being fogged after the washing, while obtaining the washing ability with acidic water and alkaline water.

The cleaning method for a cleaning machine according to claim 8 is the cleaning method according to claim 7, wherein the acidic water is used at room temperature, and the alkaline water is used at a predetermined temperature higher than room temperature. It is characterized by being used. According to the method of this configuration, the washing performance of the acidic water can be increased at normal temperature and the alkaline water can be enhanced at the high temperature, so that the cleaning ability of the washing machine can be further enhanced.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described.
This will be described with reference to the accompanying drawings. FIG. 1 is a side sectional view of a schematic configuration of a cleaning machine according to an embodiment of the present invention. The washing machine 1 is used for washing tableware as an object to be washed (shown as W in FIG. 1) and test instruments such as test tubes, beakers, and flasks using washing water. In the washing machine 1, the washing water is
Tap water supplied from the outside is used as it is, for example, in a neutral state at room temperature, or used at an elevated temperature, or used in a strongly acidic or strongly alkaline state by electrolysis. .

The washing machine 1 includes a washing chamber 3 for washing the object to be washed inside, a water supply path 4 for directly supplying the washing water into the washing chamber 3, and a washing water to be supplied into the washing chamber 3. And an electrolyzed water generating apparatus 5 for electrolyzing. The electrolyzed water generator 5 and the washing room 3 are connected via a water passage 6. The water supply passage 4 has a pipe 41, a water supply valve 42 including an electromagnetic valve provided in the pipe 41, and the like. Water supply channel 4
One end of the pipe 41 is connected to the cleaning chamber 3, and the other end of the pipe 41 is connected to an external water supply facility (not shown) such as water supply. The water supply path 4 can supply tap water into the washing room 3 as washing water.

The cleaning chamber 3 is disposed in the cabinet 2 and is formed in a hollow box shape. An opening / closing door 21 is provided in the cleaning room 3, and the opening / closing door 21 is opened to put in / out an object to be washed. When the opening / closing door 21 is closed, the washing water does not leak from the inside of the washing chamber 3 to the outside. The bottom 31 of the cleaning chamber 3 is formed in a container shape, and can store the cleaning water from the water supply channel 4 and the water channel 6 to a predetermined water level H inside.

The washing chamber 3 includes a mesh rack 32 for placing the object to be washed as a holding member for holding the object to be washed, and an arm-shaped nozzle 34 for washing the held object to be washed. A mechanism 33 and a drainage channel 7 having a drainage pipe 71, a drainage pump 72, and the like for discharging cleaning water from the cleaning chamber 3 are provided. The cleaning mechanism 33 is provided at the bottom 31 of the cleaning chamber 3.
A pipe 35 connecting the nozzle and the nozzle 34, a cleaning pump 36 provided in the pipe 35 for pumping the cleaning water, and the above-mentioned nozzle 34 for jetting the supplied cleaning water. The nozzle 34 is provided with a plurality of injection ports 34a, from which washing water is injected toward the article placed on the rack 32. In addition, the nozzle 34 is rotatably supported around a vertical axis (not shown), and can be rotated by a reaction when the cleaning water is sprayed.

When the cleaning pump 36 is operated, the cleaning water flows from the bottom 31 of the cleaning chamber 3 through the pipe 35 to the nozzle 34.
To be pumped. Then, while the nozzle 34 rotates, the washing water is sprayed on the object to be washed, so that the object to be washed can be washed evenly. The washing water flows from the object to be washed to the bottom 3 of the washing room 3.
1 to wash the object to be washed while circulating. Also,
A heater 10 is provided at a position lower than the water level H in the cleaning chamber 3 so that the temperature of the cleaning water in the cleaning chamber 3 can be increased. The temperature of the air around the heater 10 is increased by the heater 10, and the blower fan 11 is
, The object to be washed can be dried with warm air. Further, the washing water after the washing is drained from the bottom 31 of the washing room 3 to the outside of the machine through the drainage channel 7.

One of the features of the present invention is that it has the above-mentioned electrolyzed water generating apparatus 5. As the electrolyzed water generation device 5, a device having a known configuration can be used. For example, the electrolyzed water generator 5
Comprises a tank 50 for storing cleaning water, a decomposing means 52 for decomposing the cleaning water stored in the tank 50 into acidic water and alkaline water by electrolysis, and the decomposed acidic water and alkaline water in the tank 50. It has a diaphragm 51 such as an ion exchange membrane as a partitioning means for distinguishing. Tank 5
0, a branch water channel 8 including a pipe 81 for branching from the pipe 41 of the water supply channel 4 and guiding the tap water into the tank 50, a solenoid valve 82 for opening and closing the pipe 81, and the like; And are connected.

The tank 50 is provided with a lid (not shown) so that the inside can be opened. Tank 50
Is partitioned into two chambers 50a and 50b by a diaphragm 51, and a positive electrode 53 is provided in one chamber 50a, and the other
A negative electrode 54 is disposed at 0b. These paired electrodes 53 and 54 are connected to a power supply 55 (see FIG. 2),
These constitute the disassembling means 52 described above.

When producing electrolyzed water, a predetermined amount of salt and tap water from the branch water channel 8 are supplied into the tank 50,
A predetermined concentration, for example, a 0.5% saline solution is stored. This saline solution is electrolyzed and decomposed into electrolyzed water of acidic water and alkaline water. That is, between the pair of electrodes 53, 54
In addition, a predetermined DC voltage (for example, 5 V)
When the voltage is applied for a predetermined time, the pH 50
Of strongly acidic water is generated, and pH 11 to
Twelve strongly alkaline waters are produced. Here, the pH of the acidic water is preferably 3 or less from the viewpoint of sterilization performance. In addition, the pH of the alkaline water is preferably 11 or more from the viewpoint of the cleaning ability.

Each of the chambers 50a and 50b of the tank 50 is supplied with water from the branch water channel 8.
The volumes of the chambers 50a and 50b are designed to store a required amount of electrolyzed water required for cleaning. Waterway 6
Has a pipe 61 connecting each of the chambers 50a and 50b of the tank 50 and the cleaning chamber 3. One end of the pipe 61 is connected to the cleaning chamber 3, the other end of the pipe 61 is branched and connected to the bottom of each of the chambers 50 a and 50 b of the tank 50, and an electromagnetic valve 63 is provided in a branched part connected to the chamber 50 a. Room 50
An electromagnetic valve 64 is provided at a branched portion connected to the portion b. By opening and closing the solenoid valves 63 and 64, the washing water can be selectively discharged from each of the chambers 50a and 50b of the tank 50.

The washing machine 1 has a control section 13 for performing processing as control means for operating the above-described sections. As shown in the block diagram of FIG. 2, the control unit 13 has a microcomputer (CPU) as a control center, a ROM and a RAM for storing programs and the like. The CPU controls each unit according to the program. Operation keys such as a course selection key 14a and a start key 14b are connected to the control unit 13 so that commands and setting signals can be input. In addition, the control unit 13 is provided with a drive circuit 13a via
Each of the above-described valves 42, 63, 64, 82 and each of the pumps 36, 7
2, blower fan 11, heater 10, electrolysis power supply 55
Are connected, and these can be operated. Further, the control unit 13 controls the temperature sensor 1 provided in the cleaning chamber 3.
Based on the detection result by 5, the heater 10 is operated to raise the cleaning water in the cleaning chamber 3 to a predetermined temperature.

In the washing machine 1, a normal course for washing with tap water and a detergent to be added as needed, and a washing method in which the tap water is converted into electrolytic water by the electrolytic water generating device 5 and then introduced into the cleaning chamber 3. One of the sterilization courses to be operated. Hereinafter, the procedure of the sterilization course which is a feature of the present invention will be described with reference to the flowchart of FIG.

First, a sterilization course is selected by operating the course selection key 14a. And start key 1
When the user operates the button 4b, the operation start signal reaches the CPU, and the operation is started (step S1). In response to the operation start signal, the control unit 13 performs an initial operation process (step S2).
~ 3). In this initial operation process, first, the electromagnetic valve 82 is opened, and tap water from the water supply channel 4 is supplied to the electrolyzed water generator 5 through the branch water channel 8, and the electrolyzed water generator 5 is operated and stored in the tank 50. The water thus obtained is electrolyzed for a predetermined time, for example, 10 minutes (step S2). After a lapse of a predetermined time, the washing water is decomposed into the strongly acidic water and the strongly alkaline water as described above. Along with this disassembling operation, preliminary cleaning is performed in the cleaning room 3. In the preliminary cleaning, the water supply valve 4
2 is opened, tap water is supplied from the water supply channel 4 to the cleaning chamber 3, and the cleaning mechanism 33 is operated (step S3). This preliminary cleaning is performed during the electrolysis period of the electrolyzed water generator 5.

The washing water used in the preliminary washing is drained prior to the next disinfection washing process, and at this time, a drainage channel disinfection process is performed (step S4). This is because the electromagnetic valve 63 is opened for a predetermined time, a part of the acidic water in the tank 50 is supplied to the cleaning chamber 3 through the water passage 6, and mixed with the water used for the preliminary cleaning. Then, the cleaning mechanism 33 is operated, for example, for one minute, and the water is sufficiently mixed in the cleaning chamber 3. Thereafter, the water is drained to the drainage channel 7 by the drainage pump 72. In this way, the washing water used in the preliminary washing is
It is drained after being sterilized by acidic water.

Next, a sterilization cleaning process is performed (step S5). Here, the electromagnetic valve 63 is opened, and all the acidic water remaining in the tank 50 is supplied to the cleaning chamber 3 through the water passage 6. The cleaning mechanism 33 is operated, and the cleaning with the acidic water is performed. At this time, the heater 10 is de-energized, and the acidic water is used at room temperature. This is because the sterilization performance of acidic water decreases when the temperature becomes high. After the disinfection and washing, drainage is performed by the drainage channel 7.

Next, a main cleaning process using alkaline water is performed (step S6). In this main cleaning process, the electromagnetic valve 64 is opened, and the tank 5 is transferred to the cleaning chamber 3 through the water passage 6.
Alkaline water within 0 is supplied. The cleaning mechanism 33 is operated, and cleaning with alkaline water is performed. At this time,
It is preferable to operate the heater 10 to set the temperature of the alkaline water to, for example, 50 ° C. or higher. After the main cleaning process, drainage is performed by the drainage channel 7.

Next, a rinsing process is performed in which rinsing is performed using tap water (step S7). That is, after the water supply valve 42 is opened and the tap water is supplied to the cleaning chamber 3 to the predetermined water level through the water supply channel 4, the cleaning mechanism 33 is operated. The water temperature at this time may be normal temperature,
In the present embodiment, the temperature of the cleaning water is increased by operating the heater 10 to increase the temperature of the cleaning water to 50 ° C. or more, more preferably, 70 ° C.
As described above, rinsing is performed. Furthermore, when the water temperature at the time of rinsing is set to 93 ° C. or higher, sterilization can be surely performed at the time of rinsing. Even if a case where it cannot be obtained occurs, it can be sterilized without problems by boiling water of 93 ° C. or more. After rinsing, drainage takes place.

Next, a drying process is performed (step S).
8). That is, the heater 10 and the blower fan 11 are operated to dry the object to be washed with warm air for a predetermined time. As described above, according to the present embodiment, the object to be washed is preliminarily cleaned by the initial operation processing of steps S2 to S3 before cleaning with electrolytic water in steps S5 to S6. The cleaning ability when electrolyzed water is used can be improved in Nos. 6 to 6. For example, the disinfection effect by the acidic water in the disinfection cleaning process in step S5 can be enhanced.

Further, since the pre-cleaning uses water from the water supply channel 4, the pre-cleaning can be performed simultaneously with the electrolysis of water by the electrolyzed water generating device 5, so that it is possible to prevent extra time for the pre-cleaning. . Further, in the disinfection cleaning process in step S5, the acid water is used at room temperature, so that the disinfection effect of the acid water can be maintained higher than when heating to a high temperature.

Further, by the main cleaning treatment using alkaline water in step S6, it is possible to effectively remove stains such as proteins. In particular, the main cleaning process is performed in step S3.
Since the dirt has been removed by the preliminary cleaning of step S4 and the sterilization cleaning with the acidic water in step S4, the cleaning ability with the alkaline water can be further enhanced. In particular, in the present cleaning treatment, the alkaline water is heated to a temperature higher than the normal temperature, so that the cleaning ability can be further enhanced. For example, heating to 50 ° C. or higher is more preferable because the washing ability for the oil component increases.

In the main cleaning process, since the cleaning with the acidic water in step S5 has already been completed, it is not necessary to further perform the cleaning with the acidic water after the main cleaning process. As a result, it is possible to prevent the glass product from fogging after washing. This is because, when washing with acidic water and alkaline water consists of multiple steps, if the last step is washing with acidic water, fogging may occur on the glass product to be washed. there were. In contrast, in the present embodiment in which the last step is cleaning with alkaline water, the above-described fogging does not occur.

Further, the water used for the preliminary cleaning can be disinfected by the acidic water in the washing chamber 3 by the drainage disinfection treatment in step S4. There is no possibility that bacteria will adhere to the drainage channel 7 during drainage and remain. Further, after the disinfecting washing in step S5, there is no possibility of the above-mentioned fear due to the disinfecting action. As a result, the drainage channel 7 can be reliably kept clean. Therefore, in the conventional dishwasher, an unpleasant odor may be caused by bacteria remaining in the drainage channel, whereas in the washer of the present embodiment, such an unpleasant odor can be prevented. When the washing machine of the present embodiment is used as an instrument washing machine for washing medical instruments and the like, it is possible to prevent harmful bacteria and the like from being inadvertently discharged out of the machine together with drainage.

Further, since the generation of the electrolyzed water may be performed during the pre-cleaning, it is permissible that a certain amount of time is required for the generation of the electrolyzed water. Can be For example, as the electrolyzed water generating apparatus 5, a type that stores water in a tank 50 and performs electrolysis can be used. If this type is used, the structure can be simplified, and the voltage applied to the electrodes can be reduced. can do.

In the above-described embodiment, the electrolyzed water generating apparatus 5 is configured to electrolyze the salt solution stored in the tank 50 as the electrolyzer to obtain electrolyzed water in the tank 50. However, the present invention is not limited to this configuration. For example, the electrolyzed water generator 5 may be any device that stores electrolyzed electrolyzed water in a tank. Further, in the above-described embodiment, the electrolyzed electrolyzed water is used for cleaning at the same concentration, but the present invention is not limited to this. For example, thicker electrolyzed water may be generated, and this electrolyzed water may be mixed with water from the water supply passage 4 or diluted in the cleaning chamber 3 for use. In this case, the capacity of the tank 50 can be reduced.

The cleaning mechanism 33 includes, for example, the cleaning chamber 3.
The washing chamber 3 may have a spray port fixed thereto, or may have a configuration in which the object to be washed is immersed in the washing water stored in the washing chamber 3 for washing. Any structure can be used as long as the object can be washed. Further, the washing machine is an appliance washing machine, but may be configured as a dishwasher mainly for washing dishes.

Further, the washing machine capable of preventing the glass utensils from being fogged after washing is not limited to the above-described structure. For example, as described above, a washing machine that operates in the order of preliminary washing, washing with acidic water, washing with alkaline water, and then rinsing may be used. Here, the preliminary washing may be washing with water alone, or washing with, for example, alkaline water. In addition, various design changes can be made without changing the gist of the present invention.

[0040]

According to the first aspect of the present invention, the initial operation control means simultaneously performs the generation of the electrolyzed water and the preliminary cleaning so that the cleaning with the electrolyzed water can be performed without extra time. You can improve your ability. According to the second aspect of the present invention, the germicidal effect can be enhanced by washing with the acidic water after the preliminary washing.

According to the third aspect of the present invention, the ability to wash proteins and other stains can be enhanced by washing with alkaline water after pre-washing or washing with acidic water. Further, it is possible to prevent fogging of the glass product after washing. According to the fourth aspect of the present invention, the cleaning ability can be further improved if the cleaning is performed with alkaline water at an increased temperature.

According to the fifth aspect of the present invention, the water in the pre-cleaning is disinfected with acidic water, then drained, and then washed for disinfection. Therefore, there is a possibility that bacteria may adhere to the drainage channel. Absent.
According to the method of the invention described in claim 6 or claim 7,
High cleaning ability with electrolyzed water is obtained without causing fogging of the glass product after cleaning. According to the method of the invention described in claim 8, in addition to the effect of claim 7, the cleaning ability can be further enhanced by using acidic water at normal temperature and alkaline water at a predetermined temperature.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a cleaning machine according to an embodiment of the present invention.

FIG. 2 is a block diagram of a control unit of the cleaning machine of FIG.

FIG. 3 is a flowchart showing control contents of the washing machine of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Washing machine 3 Washing room 4 Water supply channel 5 Electrolyzed water generator 6 Water supply channel 7 Drainage channel 10 Heater 13 Control unit 33 Cleaning mechanism 50 Tank 51 Separator (partition means) 52 Disassembly means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Seiwa Fujikawa 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Tamotsu Kawamura 2-chome Keihanhondori, Moriguchi-shi, Osaka No. 5 F-term (reference) in Sanyo Electric Co., Ltd. GC20

Claims (8)

[Claims] 1. A water supply passage for supplying water to a room, a drainage passage for discharging water in a room, and a washing mechanism for washing an object to be washed using water supplied to the room. A washing chamber, a tank for storing water, a decomposition means for decomposing the water stored in this tank into acidic water and alkaline water by electrolysis,
And an electrolyzed water generator having a partitioning means for distinguishing the decomposed acidic water and alkaline water in the tank, a water passage for supplying water in the tank to the washing chamber, and in response to the operation start signal, Initial operation control to operate the electrolyzed water generator to decompose the water stored in the tank and supply water from the water supply channel to the cleaning chamber during the decomposition period to operate the cleaning mechanism and perform pre-cleaning And a cleaning device. 2. The cleaning machine according to claim 1, wherein after the preliminary cleaning, the acidic water in the tank is supplied to the cleaning chamber through the water passage to operate the cleaning mechanism to perform the sterilization cleaning using the acidic water. A cleaning machine further comprising a sterilization cleaning control means. 3. The washing machine according to claim 2, wherein after the washing with the acidic water, the alkaline water in the tank is supplied to the washing chamber through the water passage to operate the washing mechanism to perform the washing with the alkaline water. A washing machine further comprising washing control means. 4. The cleaning machine according to claim 3, further comprising a heater for heating water supplied into the cleaning chamber, wherein the cleaning control means performs cleaning by heating alkaline water by the heater. Washing machine characterized. 5. The cleaning machine according to claim 2, wherein a part of the acidic water in the tank is supplied to the cleaning chamber through a water passage and used for preliminary cleaning prior to the sterilization cleaning. A washing machine further comprising a drainage disinfection control means for mixing the water with the drained water and then flowing the mixture to a drainage passage. 6. A washing method for a washing machine capable of utilizing acidic water and alkaline water when washing an object to be washed, wherein the object to be washed is sterilized and washed with acidic water, and then washed with alkaline water. A cleaning method for a cleaning machine, wherein main cleaning is performed using water. 7. A washing method for a washing machine that can use acidic water and alkaline water when washing an object to be washed, wherein the object to be washed is preliminarily washed, and then sterilized using acidic water. A washing method for a washing machine, comprising washing, followed by main washing with alkaline water, and then rinsing with water. 8. The cleaning method according to claim 7, wherein the acidic water is used at room temperature, and the alkaline water is used at a predetermined temperature higher than room temperature. Cleaning method.