JP2012034907A - Dishwasher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dishwasher for shortening a time to store warm water at a water level for washing in a washing space, while avoiding the enlargement of a whole configuration.SOLUTION: A control means H performs: washing processing to wash washing objects in the washing space Q, rinsing processing to rinse the washing objects, and drying processing to dry the washing objects. The control means controls, in the drying processing, a ventilation means 23, a heating means 9, and a warm water intermittence means E, so as to allow dehumidifying warm water to come into contact with air to pass a ventilation route F in a dehumidifying part G, while heating the air in the washing space Q by the heating means 9. The control means controls, in the washing processing and the rinsing processing, the warm water intermittence means E, so as to supply warm water from the dehumidifying part G to the washing space Q in addition to the supply of warm water from a water supply port 5 to the washing space Q.

Description

The present invention provides ventilation means through a ventilation path extending from a water supply port for supplying hot water for cleaning and rinsing into the cleaning space of the cleaning tank, an air suction port from the cleaning space, and an air supply port to the cleaning space. A dehumidifying section that condenses and dehumidifies moisture in the air by cooling the air in the cleaning space circulated in contact with hot water for dehumidification, and heating means for heating the air in the cleaning space A hot and cold intermittent means for intermittently supplying hot water to the water supply port and intermittently supplying hot water to the dehumidifying unit, a cleaning process for cleaning the cleaning object in the cleaning space, and a rinsing process for the cleaning object And a control means for performing a drying process for drying the object to be cleaned, and the control means supplies hot water at a cleaning level by supplying hot water from the water supply port in the cleaning process and the rinsing process. The To perform the washing and rinsing and stored in serial washing space, it controls the hot water disconnecting means, and,
In the drying process, the ventilation unit, the heating unit, and the heating unit are configured to contact the hot water for dehumidification and the air passing through the ventilation path while heating the air in the cleaning space by the heating unit. The present invention relates to a dishwasher configured to control the hot water intermittent means.

Such a dishwasher is used for washing and drying dishes such as dishes and teacups.
In other words, the dishwasher is used in various forms, but the standard use form is for washing in the washing space from the water supply port when the object to be washed is stored in the washing space. The hot water is supplied and the cleaning water is ejected as cleaning water from the cleaning nozzle equipped in the cleaning space. Next, the hot water in the cleaning space is discharged, and then the cleaning space is discharged from the water supply port. A form in which hot water for rinsing is supplied into the interior, the rinsing process is performed by ejecting the hot water for rinsing from a cleaning nozzle equipped in the cleaning space, and then the hot water in the cleaning space is discharged and then the drying process is performed. It is.

As another usage pattern of the dishwasher, for example, there is a mode of cleaning an object to be cleaned that does not require a cleaning process such as hand washing. In such a case, a rinsing process and a drying process are performed. become.
That is, the dishwasher is used for washing and drying dishes in a standard usage pattern or a different form.

  Moreover, the above-described dishwasher cools the air passing through the ventilation path by contacting with the hot water for dehumidification while heating the air in the washing space by the heating means as a drying process. Since moisture is condensed and dehumidified, when performing the drying process, moist air is not discharged outside the machine, so the moist air is installed by the user or the dishwasher. Therefore, it can be prevented from being sprayed on other devices existing in the place where the operation is performed, and it is easy to use.

As a conventional example of such a dishwasher, the dehumidifying unit is configured to discharge dehumidified hot water into a trap for draining to the outside of the machine, so that the dehumidified hot water is immediately after the dehumidification treatment. Some are configured to be discharged outside (see, for example, Patent Document 1).
In Patent Document 1, a detailed description of the drying process is not described. However, in the drying process, a heater as a heating unit provided at the bottom of the cleaning space is operated so that the air in the cleaning space is discharged. It will be heated.

JP-A-8-131391

In the cleaning process and the rinsing process, hot water is supplied into the cleaning tank from the water supply port, and hot water serving as a cleaning water level suitable for cleaning and rinsing is stored in the cleaning space.
When the time for storing hot water at the cleaning water level in the cleaning space is shortened, the work efficiency can be improved.

For this reason, the pipe leading the hot water from the water supply channel connected to the water supply source such as the water supply to the water supply port has a sufficiently large diameter, and as an on-off valve for intermittently supplying hot water from the water supply channel to the water supply port It is conceivable to use a large valve having a small water flow resistance.
However, in this case, due to the formation of a large-diameter pipe line or the provision of a large valve, the overall configuration becomes large, and hot water at the cleaning water level is stored in the cleaning space. It was difficult to shorten the time.

  The present invention has been made in view of the above circumstances, and its object is to shorten the time for storing hot water at the cleaning level in the cleaning space while avoiding an increase in the overall configuration. It is in the point which provides the dishwasher which can aim at.

The dishwasher of the present invention includes a water supply port for supplying hot water for washing and rinsing into the washing space of the washing tank,
By cooling the air in the cleaning space circulated by the ventilation means through the ventilation path extending from the air suction port to the cleaning space and the air supply port to the cleaning space by contact with hot water for dehumidification, A dehumidifying part that dehumidifies by condensing moisture in the air;
Heating means for heating the air in the cleaning space;
Hot water intermittent means for intermittently supplying hot water to the water supply port and intermittently supplying hot water to the dehumidifying section;
Control means for executing a cleaning process for cleaning the cleaning object in the cleaning space, a rinsing process for the cleaning object, and a drying process for drying the cleaning object,
The control means is
In the cleaning process and the rinsing process, the hot water intermittent means is controlled so as to store hot water at a cleaning water level in the cleaning space by supplying hot water from the water supply port, and to perform cleaning and rinsing, and
In the drying treatment, the heating means, the heating means, and the air passing through the ventilation path are brought into contact with the hot water for dehumidification and the air passing through the ventilation path. The hot water intermittent means is configured to be controlled, and the first characteristic configuration is
The dehumidifying part is configured to flow hot water after dehumidifying treatment into the cleaning tank,
In the cleaning process and the rinsing process, the control means supplies the hot water into the cleaning space from the dehumidifying section in addition to supplying hot water into the cleaning space from the water supply port. It is characterized in that it is configured to control.

That is, supply of hot water into the cleaning space in the cleaning process and the rinsing process is performed by supplying hot water into the cleaning space from the water supply port and supplying hot water into the cleaning space from the dehumidifying unit. Become.
By the way, if the dehumidifying part is configured to flow hot water after dehumidifying treatment into the washing tank, hot water will be supplied from the dehumidifying part to the washing space even in the drying process. Therefore, the supply amount of hot water supplied to the dehumidifying part per unit time may be small, and such hot water is stored at the bottom of the cleaning space, and thus has an adverse effect on the drying process. is not. The hot water supplied to the cleaning space and stored at the bottom of the cleaning space is discharged outside the apparatus after the drying process.

  In this way, hot water is supplied into the cleaning space in the cleaning process and the rinsing process by supplying hot water into the cleaning space from the water supply port and supplying hot water into the cleaning space from the dehumidifying part. Therefore, in the cleaning process and the rinsing process, the time required to store hot water in the cleaning space that is suitable for cleaning and rinsing is supplied from the water supply port to the cleaning space. This can be shortened compared to the case of only doing.

  In addition, for the drying process, while making effective use of the configuration for supplying hot water from the water supply source to the dehumidifying part, the hot water flows from the dehumidifying part to the cleaning space, thereby cleaning the cleaning space. Since the time to store hot water at the water level is to be shortened, it is necessary to increase the diameter of the pipe for supplying hot water from the water supply source to the water supply port, and to increase the size of the valve installed in the pipe. Therefore, it is possible to shorten the time for storing the hot water at the cleaning water level in the cleaning space while avoiding the increase in the overall configuration.

  In short, according to the first characteristic configuration of the present invention, it is possible to reduce the time for storing hot water at the cleaning water level in the cleaning space while avoiding an increase in the overall configuration. Can provide.

The second feature configuration of the present invention is in addition to the first feature configuration described above.
The hot water interrupting means is branched from a first on-off valve for opening and closing a water supply path connected to a water supply source, a washing tank branch path branched from the water supply path and connected to the water supply port, and the water supply path. Of the dehumidifying branch connected to the dehumidifying section, a second on-off valve that opens and closes the cleaning tank branch, and the first on-off valve and the second open / close equipped on the dehumidifying branch. A constant flow valve that restricts the flow rate of hot water flowing through the dehumidifying branch path to be less than the flow rate of hot water flowing through the washing tank branch path when the valve is open;
When the control means supplies hot water in the cleaning process and the rinsing process, the first on-off valve and the second on-off valve are opened, and when hot water is supplied in the drying process, the first on-off valve And is configured to close the second on-off valve.

That is, when hot water is supplied to the cleaning space in the cleaning process and the rinsing process, hot water from the water supply channel is supplied from the water supply port to the cleaning space through the branch for the cleaning tank, and the hot water from the water supply channel is branched for dehumidification. It is performed by being supplied to the cleaning space from the dehumidifying part through the path.
Further, in the drying process, hot water from the water supply channel is supplied to the dehumidifying section through the dehumidification branch channel in a state where the flow of hot water in the cleaning tank branch channel is stopped.

  Further, in the dehumidifying branch, when the first on-off valve and the second on-off valve are opened, the flow rate of hot water flowing through the dehumidifying branch channel is the flow rate of hot water flowing through the cleaning tank branch channel. A flow valve that restricts the flow rate to be less than that of the dehumidifying branch path is provided, so that the flow rate of hot water supplied through the dehumidifying branch is limited to a small amount required for the dehumidifying action in the dehumidifying section.

  And about the stop of the hot water supply to the washing space through the branch for the washing tank, the first on-off valve equipped in the water supply path and the second on-off valve equipped in the branch for the washing tank are used in a double manner. Even if one of the first on-off valve and the second on-off valve cannot be properly shut off due to a foreign object or the like, the cleaning tank branch passage is passed. The supply of hot water to the washed space is stopped, and it is prevented that hot water is stored in an abnormally high water level in a short time, so that a large amount of water is not wasted. Is done.

  In other words, when hot water is stored in an abnormally high water level in the cleaning space, such an abnormal state is detected by the abnormal water level detection means, and discharge processing for discharging hot water in the cleaning space. However, if such a discharge process is repeatedly performed in a short cycle, a large amount of hot water is consumed wastefully. It is necessary to prevent the water from being stored.

  The flow rate of hot water through the cleaning tank branch in the open state of the first on-off valve and the second on-off valve is constant so that hot water can be quickly stored in the cleaning space. Since it is configured to be larger than the flow rate of hot water through the dehumidifying branch with a flow valve, supply hot water appropriately when the supply of hot water to the cleaning space through the cleaning tank branch is stopped. When it cannot be stopped in a short time, the hot water is stored in the cleaning space at an abnormally high water level in a short time, and there is a possibility that the above-mentioned discharge treatment may be repeatedly performed in a short cycle. The hot water supply to the washing space through the branch passage is stopped because it is shut off twice by the first on-off valve installed in the water supply passage and the second on-off valve installed in the branch for the washing tank. Hot water supply to the washing space through the tank branch Accordingly, hot water in the washing space that is ready to be stored in the abnormally high level becomes to be minimized.

  In addition, when the first on-off valve installed in the water supply path cannot be properly shut off due to a foreign object or the like, hot water flows through the dehumidifying branch and passes through the dehumidifying section. Although it will flow into the cleaning space, the flow rate of hot water through the dehumidifying branch is limited to a small amount by the constant flow valve, so the first on-off valve equipped in the water supply channel should be properly Even if it cannot be shut off, it takes a long time for hot water to be stored in an abnormally high water level in the cleaning space, and the above-described discharge process is repeatedly performed in a short cycle. And a large amount of hot water is not wasted.

  That is, in addition to the first on-off valve and the second on-off valve described above, an on-off valve for opening and closing the dehumidifying branch is provided, and the first on-off valve and the dehumidifying valve are also used for stopping the supply of hot water to the dehumidifying branch. It is possible to adopt a structure that shuts off twice by using an open / close valve that opens and closes the branch path, but the flow rate of hot and cold water through the dehumidification branch path is limited to a small amount by a constant flow valve. Paying attention to a simple configuration with a first on-off valve that opens and closes the water supply path and a second on-off valve that opens and closes the branch path for the washing tank without providing an on-off valve that opens and closes the dehumidifying branch path Thus, it can be avoided that a large amount of hot and cold water is consumed.

  In short, according to the second feature configuration of the present invention, in addition to the operational effects of the first feature configuration described above, a dishwasher that can avoid wasteful consumption of a large amount of hot water with a simple configuration is provided. it can.

The third feature configuration of the present invention is in addition to the second feature configuration described above.
The water level detecting means for detecting the level of hot water in the cleaning space is configured to detect that the hot water discharge water level corresponds to a state in which most of the hot water is discharged from the cleaning space,
When the control means detects that the water level in the cleaning space is higher than the hot water discharge water level in the operation stop state, the water level detection means detects the hot water discharge water level. The abnormality determination drainage treatment for operating the drainage pump that drains the hot water stored in the cleaning space is executed, and the abnormality determination drainage treatment is executed a set number of times while the operation is stopped. In some cases, it is configured to execute an alarm process for operating the alarm means.

That is, in the operation stop state in which the operation for cleaning is not performed, the water level detection means causes the hot water level in the cleaning space to be higher than the hot water discharge level corresponding to the state in which most of the hot water has been discharged from the cleaning space. If this is detected, the abnormality determination drainage process for operating the drainage pump for draining the hot water stored in the cleaning space is executed until the hot water discharge water level is detected by the water level detection means.
That is, when the operation for cleaning is not performed, the first on-off valve is in a state in which it cannot be properly shut off due to a foreign object or the like, so that hot water leaks. In this case, the water level detection means detects that the level of hot water in the cleaning space is higher than the hot water discharge water level, and the water level detection means detects that the hot water discharge level is detected in the cleaning space. The stored hot water is drained by the operation of the drain pump.

  When the abnormality determination drainage process is executed a set number of times while the operation is stopped, an alarm process for operating the alarm means is executed to notify the user that hot water has leaked. This will prompt maintenance.

  In short, according to the third characteristic configuration of the present invention, in addition to the operational effects of the second characteristic configuration described above, when hot water leaks, the user is notified of this and the maintenance is promoted. Can provide a dishwasher.

In addition to the second or third characteristic configuration described above, the fourth characteristic configuration of the present invention includes:
The cleaning tank is provided so as to be freely drawn out and stored along the horizontal direction with respect to the main body case portion.
The first on-off valve, the second on-off valve, and the constant flow valve are provided at a location on the back side of the main body case portion,
A portion connecting the second on-off valve and the water supply port in the washing tank branch path is configured by a flexible hose,
A portion connecting the constant flow valve and the dehumidifying part in the dehumidifying branch path is constituted by a flexible hose.

  That is, since the cleaning tank provided with the cleaning space is provided so as to be able to be pulled out and stored in the horizontal direction with respect to the main body case part, the cleaning target provided with the cleaning space is drawn out from the main body case part. Goods can be taken in and out.

  In addition, the first on-off valve, the second on-off valve, and the constant flow valve are provided in the back side portion of the main body case portion, and the portion connecting the second on-off valve and the water supply port in the washing tank branch is flexible. Since the part connecting the constant flow valve and the dehumidifying part in the dehumidifying branch path is composed of a flexible hose, the cleaning tank is placed in the body case for taking in and out the object to be cleaned. It can be satisfactorily pulled out and stored in the part.

  That is, the flexible hose that configures the portion that connects the second on-off valve and the water supply port in the branch for the cleaning tank, and the flexible that configures the portion that connects the constant flow valve and the dehumidifier in the branch for dehumidification When the hot water that is pressurized with the water supply pressure is stored in the internal hose, it becomes difficult to bend. Although a large resistance is provided, since the first on-off valve and the second on-off valve are provided on the back side portion of the main body case portion, if the first on-off valve and the second on-off valve are closed, cleaning is performed. A flexible hose that configures a portion that connects the second on-off valve and the water supply port in the branch for the tank, and a flexible hose that configures a portion that connects the constant flow valve and the dehumidifier in the branch for dehumidification Is stored hot water pressurized by the feed water pressure Therefore, it is avoided that these flexible hoses give a large resistance to pulling out and storing the cleaning tank with respect to the main body case part, and the cleaning tank is pulled out with respect to the main body case part. And can be stored well.

  In addition, when the first on-off valve, the second on-off valve, and the constant flow valve are equipped in the cleaning tank, a portion that is supported on the back side portion of the main body case portion in the water supply channel and the first on-off valve In this case, when pulling out and storing the cleaning tank with respect to the main body case part in order to put in and out the object to be cleaned, Since the first on-off valve and the second on-off valve are to be closed, the flexible hose constituting the portion connecting the first on-off valve with the portion that is supported on the back side portion of the main body case in the water supply channel The hot water is stored in a state pressurized by the water supply pressure, and the flexible hose is difficult to bend. Will give you a great resistance to That is, according to the fourth characterizing feature, that and storage be drawn with respect to the main body casing portion cleaning tank, becomes satisfactorily performed.

  By the way, since the constant flow valve is provided at the back side location in the main body case part, during the drying process, the cleaning tank is pulled out from the main body case part and stored in order to store the object to be cleaned in the cleaning space. In this case, even if the hot water is continuously supplied to the dehumidifying part, the hot water continues to flow through the flexible hose constituting the part connecting the constant flow valve and the dehumidifying part in the dehumidifying branch. However, since the pressure of the hot water present in the flexible hose is not a large pressure, it does not give a great resistance to pulling out and storing the cleaning tank with respect to the main body case. The tank can be satisfactorily pulled out and stored with respect to the main body case.

  In short, according to the fourth characteristic configuration of the present invention, in addition to the operational effects of the second or third characteristic configuration described above, the septic tank can be drawn out of the main body case part for taking in and out the cleaning object. A dishwasher that can be stored well can be provided.

In addition to the fourth feature configuration, the fifth feature configuration of the present invention includes:
The ventilation path is provided on the front side of the cleaning tank,
The dehumidifying section is provided in the ventilation path, and the ventilation means is provided so as to ventilate the ventilation path.

  That is, the ventilation path is provided on the front side of the cleaning tank, and the dehumidifying part and the ventilation means are also provided on the front side of the cleaning tank. It can be done without pulling it out from the section, making it easy to perform maintenance work on the dehumidifying section and ventilation means.

  In short, according to the fifth characteristic configuration of the present invention, it is possible to provide a dishwasher that can satisfactorily perform maintenance work on the dehumidifying unit and the ventilation means in addition to the operational effects of the fourth characteristic configuration described above.

In addition to any of the first to fifth feature configurations described above, the sixth feature configuration of the present invention includes:
The air supply port and the air supply port are formed at lower positions in the side wall portion of the cleaning space,
The ventilation path is configured in an inverted U shape including an upward path portion extending upward from the air suction port and a downward path portion extending downward from the upper end portion of the upward path portion toward the air supply port. ,
The dehumidifying part is
Ejecting means for ejecting dehumidified hot water downward with respect to the air passing through the ascending path portion in the ventilation path, and air venting the ascending path portion upward by the ejecting means. It is configured to dehumidify by condensing moisture in the air by cooling with contact with dehumidified hot water sprayed downward, and the dehumidified hot water and condensed hot water are the air. It is characterized by being configured to flow into the cleaning space through a suction port.

  That is, the air suction port and the air supply port are formed at lower positions in the side wall portion of the cleaning space, and the ventilation path extends from the air suction port to the upper side and the upper end portion of the lift path portion. Since it is configured in an inverted U shape including a downward path portion extending downward toward the air supply port, it is possible to suppress clogging of leftovers in the cleaning space in the ventilation path.

  In addition, there is a risk that leftovers attached to the object to be cleaned may be scattered in the ventilation path through the air suction port or air supply port during the rinsing process or the rinsing process. The air suction port extends in the vertical direction with the air suction port positioned at the lowest position, and the descending path portion extends in the vertical direction with the air supply port positioned at the lowest position. The scattered leftovers do not move to the upper side of the ventilation path, and the leftovers scattered in the ventilation path fall into the washing space by their own weight and return to the washing space. It becomes possible to suppress the clogging of vegetables in the ventilation path.

  In addition, since the air suction port and the air supply port are formed at lower positions in the side wall portion of the cleaning space, the air flow path configured in an inverted U shape composed of the ascending path part and the descending path part is defined as air Ventilation means and dehumidifying parts that can be easily caught by leftovers can be formed from the location where the suction port and the air supply port are formed, and greatly upward from the air suction port and the air supply port. It can arrange | position in a distant position, and can make it easy to avoid that the vegetables left in the ventilation path penetrate | invade and adhere to a ventilation means or a dehumidification part.

  Then, the dehumidifying section causes the dehumidifying water to be ejected downward by the ejecting means with respect to the air passing upward through the ascending path portion by the ventilation operation of the ventilating means, and the air passing upward through the ascending path portion. Since the water in the air is condensed by being cooled by contact with the dehumidifying water that ejects the air, it is possible to dehumidify the air in the cleaning space while reducing the amount of the dehumidifying water used.

  In other words, since the air passing upward and the dehumidifying water ejected downward by the ejecting means are brought into contact with each other to condense moisture in the air, the dehumidifying hot water to be ejected is The dehumidifying hot water that is sprayed downward and in contact with the air before dehumidification that is vented upward will be sequentially contacted while moving in the opposite direction. The state where hot water for hot water comes into contact with air and condenses moisture in the air continues over a long region.

  As a result, when performing the drying process, it is possible to dehumidify the air in the cleaning space while reducing the amount of hot water used for dehumidification.

  Therefore, according to the sixth feature configuration of the present invention, in addition to the operational effects of any one of the first to sixth feature configurations, it is avoided that the leftovers scattered in the cleaning process and the rinsing process are clogged in the ventilation path. In addition, it is possible to provide a dishwasher that can be used satisfactorily over a long period of time and that can dehumidify the air in the washing space while reducing the amount of hot water used for dehumidification. .

Perspective view of dishwasher Notched side view with the cleaning tank stored The perspective view which looked at the washing tank which removed the front door from the front side Perspective view of the cleaning tank as seen from the back Schematic diagram of dishwasher Schematic perspective view showing the flow state of drying air Flow chart showing control operation Flow chart showing control operation Notched perspective view of water level detector Perspective view of the device Perspective view of the device Longitudinal side view of detection state of hot water discharge water level Longitudinal side view of washing water level detection status Vertical side view of abnormal water level detection Float perspective view

Embodiment
Next, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1 to FIG. 4, a main body 1 is provided as a main body case with an opening on the front surface, and a drawer 2 including a cleaning tank D having a square shape in plan view is provided on the main body 1. On the other hand, the drawer-type dishwasher as an example of the dishwasher is provided so that it can be pulled out and stored along the horizontal direction.
Although not illustrated, a slide-type rail mechanism is provided that supports the drawer portion 2 so as to be movable with respect to the main body portion 1, and the drawer portion 2 exposes most of the main body portion 1 to the outside. It is configured so that it can be pulled out to the state.

  The inner lid 3 that closes the upper surface of the cleaning tank D when the drawer 2 is housed in the main body 1 opens the upper surface of the cleaning tank D when the drawer 2 is pulled out from the main body 1. Thus, it is provided in a form that is automatically opened and closed as the drawer part 2 is pulled out and stored, and an openable and closable cleaning space Q is configured in the internal space of the cleaning tank D.

The front part of the drawer part 2 is provided with a door body A that opens and closes the opening of the front part of the main body part 1, and the door body A is gripped when the drawer part 2 is pulled out from the main body part 1 or stored. A holding part B is provided. Although not described in detail, an engaging means P that engages with the engaging portion Pa of the main body 1 as the drawer 2 is housed in the main body 1 is provided at the inner side portion of the grip B. When the engaging means P is engaged with the engaging portion Pa, the drawer portion 2 is held in the state of being housed in the main body portion 1. Then, the engaging means P can be operated in a released state in which the engagement is released with the fingers supporting the gripping part B when the drawer part 2 is pulled out from the main body part 1.
Further, the door body A is provided with an operation unit SS for performing various operations for driving.

As shown in FIGS. 2 and 5, a water supply channel 4A connected to a water supply source such as a water supply, a washing tank branch channel 4B branched from the water supply channel 4A, and a dehumidifying branch branched from the water supply channel 4A A path 4C is provided.
The washing tank branch 4B is connected to a water supply port 5 for supplying hot water for cleaning and rinsing into the washing space Q of the washing tank D, and the dehumidifying branch 4C is connected to the front side wall Df of the washing tank D. It is connected to a dehumidifying part G to be described later.

The first on-off valve V1 that opens and closes the water supply path 4A, the second on-off valve V2 that opens and closes the washing tank branch path 4B, and the dehumidification branch path 4C are equipped with the first on-off valve V1 and the second on-off valve. A constant flow valve V3 for limiting the flow rate of hot water flowing through the dehumidification branch 4C to be smaller than the flow rate of hot water flowing through the washing tank branch 4B in the open state of the on-off valve; The hot water supply / interruption means E is provided, and is configured to intermittently supply hot water to the water supply port and intermittently supply hot water to the dehumidifying section from the first on / off valve V1, the second on / off valve V2, and the constant flow valve V3. Has been.
That is, when hot water is supplied to the water supply port 5, the first on-off valve V1 and the second on-off valve V2 are opened, and when hot water is supplied only to the dehumidifying part G, the first on-off valve V1 is opened. As a result, the second on-off valve V2 is closed.
The first on-off valve V1 has a flow rate of hot water flowing through the washing tank branch 4B sufficiently higher than a flow rate of hot water flowing through the dehumidification branch 4C (for example, 200 ml / min). Although it is a large flow rate, a constant flow valve V4 that restricts the excessive flow rate to be suppressed is provided in a state of being integrally incorporated.

  In addition, a first on-off valve V1, a second on-off valve V2, and a constant flow valve V3 are arranged at the back side portion of the main body 1, and the second on-off valve V2 and the water supply port 5 in the washing tank branch 4B. Are connected by a flexible hose R1, and a portion connecting the constant flow valve V3 and the dehumidifying part G in the dehumidifying branch 4C is formed by a flexible hose R2.

Below the bottom of the washing tank D in the drawer 2, a dual-purpose pump 6 that functions as a cleaning pump in forward rotation and functions as a drainage pump in reverse rotation is provided, and in the cleaning space Q of the cleaning tank D, A cleaning nozzle 8 and an electric heater 9 as a heating means are arranged, and a cleaning basket 10 for storing and placing an object to be cleaned such as tableware is detachably mounted in the cleaning tank D. .
In addition, the heater 9 is provided in a posture extending in the front-rear direction at the right side in the left-right direction of the cleaning tank D in plan view (see FIG. 6), although not illustrated, the dehumidifying branch 4C is provided in the cleaning tank. It is suppressed that the hot water which is provided in the left end part of D in the left-right direction and flows through the dehumidifying branch 4C is heated by the heater 9.

The dual-purpose pump 6 is connected to a water storage recess S formed at the bottom of the cleaning tank D by a suction pipe 11 and a drain pipe 12 is connected thereto.
As shown in FIG. 2, a drain pan 14 for receiving water leakage is provided at the bottom of the main body 1. Although not illustrated, the presence or absence of water received and collected by the drain pan 14 is detected. It will be equipped with a leak sensor.

Further, as shown in FIG. 5, a water level sensor J as a water level detecting means is connected to the water storage recess S through a guide tube 13 as a communication path.
As will be described later, the water level sensor J is stored in the cleaning space Q of the cleaning tank D, and the level of hot water stored in the cleaning space Q of the cleaning tank D is the cleaning water level (high water level). The hot water level corresponds to a state in which most of the hot water is discharged from the cleaning space Q, and the hot water discharge level is low enough to expose the heater 9 (low water level), and is stored in the cleaning tank D. It is configured to detect that the hot water to be discharged is an abnormal water level that is higher than the washing water level by a set amount.

As shown in FIGS. 2, 3 and 5, of the four side walls forming the cleaning space Q in the cleaning tank D, the front side wall Df corresponding to the front side of the machine body, that is, the front side of the drawer part, A drying unit K is attached.
That is, as shown in FIG. 6, the air supply port 21 that supplies the air from the drying unit K to the cleaning space Q and the drying unit K suck the air in the cleaning space Q into the front side wall portion Df. The air suction port 22 is formed at a position corresponding to the lower side of the cleaning space Q and at positions separated on both the left and right sides. Specifically, the air supply port 21 and the air suction port 22 are formed so as to be positioned below the cleaning basket 10, and in the present embodiment, the air supply port 21 is on the right side. The air suction port 22 is positioned on the left side.

The drying unit K circulates the air in the cleaning space Q through the ventilation path F extending between the air suction port 22 and the air supply port 21 inside the casing 20 fixed to the front side wall portion Df of the cleaning tank D. And the above-mentioned dehumidifying part G for dehumidifying the air circulated through the ventilation path F.
The ventilation path F has an inverted U-shape composed of an ascending path part f1 extending upward from the air suction port 22 and a descending path part f2 extending downward from the upper end of the ascending path part f1 toward the air supply port 21. The dehumidifying part G is disposed in the ascending path part f1, and the circulation fan 23 is disposed in the descending path part f2.

The dehumidifying part G includes a plurality of heat transfer plates 24 juxtaposed at intervals along the plate thickness direction and ejects hot water for dehumidification from the ejection nozzle 25 toward the heat transfer plates 24. The air flowing upward through the heat transfer plates 24 is cooled by contact with dehumidification water flowing down the surface of the heat transfer plate 24 and contact with dehumidification water flowing down between the heat transfer plates 24. Thus, the moisture in the air is condensed and dehumidified.
The dehumidified hot water and condensed hot water ejected from the ejection nozzle 25 flow into the cleaning space Q of the cleaning tank D through the air suction port 22 and are stored in the water storage recess S.

  Then, in a state where the electric heater 9 is heated, the circulation fan 23 is ventilated and hot water for dehumidification is ejected from the ejection nozzle 25, so that the air sucked from the cleaning space Q is supplied to the dehumidifying part G. After the dehumidification, the drying air is supplied to the cleaning space Q as drying air, and the supplied air is heated by the electric heater 9 to dry the cleaning object in the cleaning space Q. It is configured to do so.

  Further, the odor in the air sucked from the cleaning space Q is obtained by performing the ventilation operation of the circulation fan 23 and the ejection operation of hot water for dehumidification from the ejection nozzle 25 with the electric heater 9 stopped. The components are absorbed in dehumidifying water by the dehumidifying unit G and then supplied to the cleaning space Q so that a deodorizing operation for deodorizing the cleaning space Q can be performed.

The air flow in the drying operation will be described. As shown in FIG. 6, the air supplied to the cleaning space Q from the air supply port 21 formed in the front side wall portion Df of the cleaning tank D rises as a main flow. While flowing toward the rear side wall, and then moving downward toward the air suction port 22 formed on the lower side of the front side wall Df and at a position separated from the air supply port 21 in the left-right direction. It flows and flows in a form discharged from the air suction port 22, and air easily flows also to a lower portion of the cleaning tank where the air suction port 22 is located.
Therefore, it is possible to shorten the drying time by allowing air to flow through the entire cleaning object in the cleaning tank and drying the cleaning object efficiently.

  As shown in FIG. 5, the drawer 2 is equipped with a control unit H as a control means for controlling the operation, and the control unit H is based on a command input from the operation unit SS. The operation of the electric heater 9, the circulation fan 23, and the hot water intermittent means E is controlled to clean the object to be cleaned in the cleaning space Q formed in the cleaning tank D with hot water as a cleaning liquid. A cleaning operation as a cleaning process, a rinsing operation as a rinsing process for rinsing an object to be cleaned with rinsing water stored in the water storage recess S of the cleaning tank D and heated by an electric heater 9, and cleaning The drainage operation as a drainage process for draining the rinse water stored in the water storage recess S of the tank D, the ventilation operation of the circulation fan 23 and the ejection nozzle 25 from the discharge nozzle 25 in a state where the electric heater 9 is heated. Hot water spray for dehumidification A deodorizing operation for performing a drying operation as a drying process for performing the operation and a ventilation operation of the circulation fan 23 and a dehumidifying hot water ejection operation from the ejection nozzle 25 in a state where the electric heater 9 is stopped. It is comprised so that the deodorizing operation as a process may be performed.

  In addition, the control unit H is in a state in which the amount of drainage per unit time is larger than the amount of hot water supplied per unit time supplied to the cleaning space Q of the cleaning tank D through the cleaning tank branch 4B and the dehumidifying branch 4C. In the operation stop state in which the combined pump 6 is operated and the washing operation, the rinsing operation, the drainage operation, etc. are not performed, the water level in the washing space Q is determined by the water level detection sensor J. When it is detected that the water level is higher than the discharged water level, an abnormality determination drainage process is performed to operate the dual-purpose pump 6 to drain the hot water stored in the cleaning space Q until the water level detection sensor J detects the hot water discharge water level. Is configured to do.

Further, the control unit H is configured to execute an alarm process when the abnormality determination drainage process is executed a set number of times (for example, 3 times) while the operation is stopped.
In this alarm process, an alarm lamp L (see FIG. 1) provided in the operation unit SS as an alarm means is operated.
That is, since the user can recognize that at least the first on-off valve V1 is not properly closed when the warning lamp L is warned, a manually operated stop cock (provided in the water supply channel 4A) (Not shown) is closed, and the water supply through the water supply path 4A is stopped, and then a maintenance call for the device is performed.

Next, a description will be given of the operation performed by the control unit H. That is, the user operates the operation unit SS in the order of the cleaning operation, the rinsing operation, the drainage operation, the drying operation, and the deodorizing operation in order, It is configured so that various driving courses can be selected, such as a dry-only course for driving only, and a standard driving course, a careful driving course, a speedy driving course, and a rapid driving course can be selected as a continuous driving course. However, in the present embodiment, only the standard operation course of the continuous course will be described.

Based on the flowcharts of FIGS. 7 and 8, the control operation of the control unit H will be described.
First, abnormality determination drainage processing is executed (# 1).
As described above, when the water level detection sensor J detects that the hot water level in the cleaning space Q is higher than the hot water discharge water level, the abnormality determination drainage process is performed by the water level detection sensor J. This is a process of operating the dual-purpose pump 6 to drain the hot water stored in the cleaning space Q until the hot water discharge water level is detected.

  Next, during the operation stop state, it is determined whether or not the number of times of drainage indicating the number of times that the drainage treatment for abnormality determination has been executed is abnormal (# 2), and the number of times of drainage is determined. Is equal to or greater than the set number of times, an alarm process for operating the alarm lamp L is executed (# 3).

When it is determined in # 2 that the number of drains is less than the set number, it is detected by the storage switch (not shown) that the drawer 2 is stored in the storage position of the main body 1 (# 4). When the SS power switch is turned on (# 5), the driving course is selected (# 6), and when the start switch of the operation unit SS is turned on (# 7), the selected driving course is executed. Will be.
And in # 4, when it is not determined that the drawer part 2 is stored in the storage position of the main body part 1, in # 5, when it is not determined that the power switch is turned on, and in # 7, If it is not determined that the start switch has been turned ON, it is determined that the operation is stopped, and the process proceeds to # 1 abnormality determination drainage processing.

Hereinafter, the description will be continued assuming that the standard operation course of the continuous course is selected and the start switch of the operation unit SS is turned ON.
When the start switch of the operation unit SS is turned on (# 7), the cleaning operation (# 9), the rinsing operation (# 14), the drain operation (# 19), the drying operation (# 20), and the deodorizing operation (# 25) are executed sequentially.

  In the washing operation, first, the first on-off valve V1 and the second on-off valve V2 are opened, and hot water is supplied into the washing space Q from the water supply port 5 through the water supply passage 4A and the washing tank branch passage 4B. Then, hot water is supplied to the dehumidifying part G through the dehumidifying branch 4C, and hot water is supplied into the cleaning space Q through the dehumidifying part G or the air suction port 22. When the water level sensor J detects that the water level in the cleaning space Q has reached the cleaning water level, the first on-off valve V1 and the second on-off valve V2 are closed to supply hot water to the cleaning space Q. To stop.

Thereafter, the dual-purpose pump 6 is rotated forward and the heater 9 is operated, and the cleaning operation for spraying the cleaning water from the cleaning nozzle 8 toward the object to be cleaned is performed until the set time for the cleaning operation elapses. In addition, the combined drainage pump 6 is operated in reverse to drain the washing water in the washing tub D until the water level sensor J detects that the hot water discharge water level has been reached.
In addition, before the user turns on the start switch of the operation unit SS, the cleaning detergent can be put into the cleaning tank D to perform cleaning using the detergent.

Then, after the cleaning operation (# 9) is started, it is determined whether or not the cleaning operation has been completed after the set time for the cleaning operation (# 10). 14).
When it is determined in # 10 that the cleaning is not finished, it is determined whether or not an interruption command is instructed by the operation unit SS (# 11). When the interruption command is instructed, the dual-purpose pump 6 is stopped. An interruption process for interrupting the cleaning operation is performed (# 12).

Thereafter, the cleaning operation is interrupted until a restart command is issued from the operation unit SS (# 13). When the restart command is issued while the cleaning operation is interrupted (# 13), The cleaning operation will be resumed.
Since the cleaning operation can be interrupted in this way, when it is desired to add a cleaning object, the cleaning object can be stored in the cleaning space Q.

In the rinsing operation, hot water is supplied to the cleaning space Q and the supply of hot water is stopped when the water level sensor J detects a cleaning water level, as in the above-described cleaning operation.
Thereafter, the dual-purpose pump 6 and the heater 9 are operated, and the rinsing operation for rinsing the object to be cleaned with the rinse water heated by the heater 9 until the set time elapses, and the dual-purpose pump 6 is operated in reverse. Thus, the rinsing operation for sequentially draining the rinsing water stored at the bottom of the cleaning tank D until the above-described hot water discharge water level is reached is performed twice, and finally the heating rinsing operation is performed.

In the heating rinsing operation, hot water is supplied to the cleaning space Q and the supply of hot water is stopped when the water level sensor J detects a cleaning water level, as in the above-described cleaning operation.
Thereafter, the dual-purpose pump 6 and the heater 9 are operated, and the object to be cleaned is rinsed with the rinse water heated by the heater 9, and the temperature of the rinse water is set by the temperature sensor (not shown). When the set temperature for finishing (for example, 67 ° C.) is reached, the heating rinsing operation is terminated.

Then, after the rinsing operation (# 14) is started, it is determined whether or not the rinsing operation is completed after all steps of the rinsing operation are completed (# 15). 19).
If it is determined in # 15 that the rinsing has not been completed, it is determined whether or not an interruption command has been instructed in the operation unit SS (# 16). If the interruption command has been instructed, the combined pump 6 and the heater An interruption process for interrupting the rinsing operation such as stopping 9 is performed (# 17).

Thereafter, the rinsing operation is interrupted until a restart command is issued from the operation unit SS (# 18). When the restart command is issued while the rinse operation is interrupted (# 18), the rinsing operation is performed. Will resume.
Since the rinsing operation can be interrupted in this way, when it is desired to add an object to be rinsed, the object to be washed can be stored in the washing space Q.

In the drainage operation, the dual-purpose pump 6 is reversely operated to drain the rinse water stored in the bottom of the cleaning space Q of the cleaning tank D until the hot water discharge water level is detected by the water level sensor J. become.
In addition, when the hot water discharge water level is not detected by the water level sensor J after the set time elapses after the reverse operation of the dual-purpose pump 6 is started in the drainage operation, the control unit H performs the drainage operation. An error is reported when it is not properly performed.

  In the drying operation, while the electric heater 9 is heated, the circulation fan 23 is ventilated and the dehumidifying hot water is ejected from the ejection nozzle 25. This state is set for drying. Continue until time (eg, 25 minutes) has elapsed. And if the set time for drying passes, the drain operation which drains the hot water for dehumidification stored by the bottom part of the washing tank D will be performed.

Then, after the drying operation (# 20) is started, it is determined whether or not the drying has ended after the set time for drying has elapsed (# 21). 25).
If it is determined in # 21 that the drying is not completed, it is determined whether or not an interruption command is issued from the operation unit SS (# 22). If the interruption command is issued, the heating operation of the heater 9 is performed. And the interruption process which stops the ventilation operation of the circulation fan 23 and interrupts the drying operation is performed (# 23).
In this interruption process, when the drying process is resumed by continuing the dehumidifying hot water jetting operation without stopping the dehumidifying hot water jetting operation from the jet nozzle 25, the dehumidifying section G The dehumidification process can be started properly.

Thereafter, the drying operation is interrupted until a restart command is issued by the operation unit SS (# 24). When the restart command is issued when the drying operation is interrupted (# 24), the drying operation is performed. Will resume.
Since the drying operation can be interrupted in this way, when a cleaning object to be dried is added, the cleaning object can be stored in the cleaning space Q.

  In the deodorizing operation, with the electric heater 9 stopped, the circulation fan 23 is ventilated and the ejection nozzle 25 is ejected with dehumidifying water. Repeat until it has passed. When the set time for deodorization elapses, the drainage operation for draining the deodorized water stored in the bottom of the cleaning tank D is performed until the water level sensor J detects the hot water discharge water level.

  Although not illustrated in the flowcharts of FIGS. 7 and 8, the controller H supplies hot water per unit time supplied to the cleaning space Q through the water supply channel 4A, the cleaning tank branch 4B, and the dehumidification branch 4C. The dual-use pump 6 is configured to operate in a state where the amount of drainage per unit time is larger than the amount, and the first on-off valve V1 and the second on-off valve V2 are opened in the washing operation and the rinsing operation. When hot water is supplied to the cleaning space Q of the cleaning tank D and an abnormal water level is detected by the water level sensor J, the first on-off valve V1 and the second on-off valve V2 are closed, and The water leakage prevention operation process for operating the dual-purpose pump 6 for draining is performed.

In addition, when the water level sensor J detects that the water level is lower than the above-described cleaning water level while executing the water leakage prevention operation process, the control unit H stops the dual-purpose pump 6 and performs the water leakage prevention operation. It is configured to stop processing.
By the way, when the water level sensor J detects that the water level is lower than the cleaning water level, it changes from the state where the water level sensor J detects the cleaning water level to the state where the cleaning water level is not detected. When

As shown in FIGS. 4 and 5, there is provided pressure adjusting means W for automatically adjusting the internal pressure of the cleaning space Q in the closed state to be the external pressure of the machine.
That is, for example, in the final rinsing process in the rinsing process, that is, in the middle of performing the high temperature rinsing by operating the electric heater 9, an operation for additionally storing the object to be cleaned or one of the objects to be cleaned being cleaned. When the cleaning space Q is opened after the operation is temporarily stopped, the cleaning space Q is opened and the necessary work is performed after starting the operation for performing the high temperature rinsing again. A large amount of air that has entered the cleaning space Q is heated by high-temperature rinsing and rapidly expands, and the internal pressure of the cleaning space Q tends to increase greatly. By the action of W, the internal pressure of the cleaning space Q is automatically adjusted so as to become the external pressure.

  In the cleaning process, when the electric heater 9 is heated, the temperature in the cleaning space Q is considerably high (for example, 67 ° C.). Thereafter, the washing water is discharged, and the rinsing water is supplied to the washing space Q for the rinsing process, and the rinsing water is ejected from the washing nozzle 8 by the operation of the combined pump 6. The temperature is low (for example, 13 to 17 ° C.). For this reason, when low-temperature rinse water is ejected from the cleaning nozzle 8, the temperature in the cleaning space Q rapidly decreases. As a result, a large amount of air in the cleaning space Q contracts rapidly, and the cleaning space Q In some cases, the internal pressure of Q tends to decrease greatly. In such a case, the internal pressure of the cleaning space Q is automatically adjusted to the external pressure by the action of the pressure adjusting means W.

The pressure adjusting means W is configured to adjust the pressure in the cleaning space Q by communicating with the cleaning space Q in the cleaning tank D through the communication hole 32 formed in the back wall DR of the cleaning tank D. However, in the present embodiment, description of the detailed configuration is omitted.
Note that condensed water may be generated in the pressure adjusting means W, and the condensed water is collected in the cleaning tank D via the water level sensor J.

Hereinafter, the water level sensor J will be described.
As shown in FIGS. 9 to 11, a hot water storage tank 40 for detecting a water level, which is connected to the bottom of the cleaning tank D by a guide tube 13 and into which hot water in the cleaning tank D is introduced, and a hot water storage tank 40. A float 41 for detecting the water level that moves up and down according to the level of the hot water stored in the hot water storage tank 40 and a shaft portion 41B that extends upward from the main body 41A of the float 41 are guided so as to be raised and lowered. And a pair of a first water level detection unit T1 and a second detection unit T2 that are positioned above the upper end of the hot water storage tank 40 and that detect two up and down positions of the float 41 are provided. It has been.

  The hot water storage tank 40 is formed in a bottomed cylindrical shape having a quadrangular cross-sectional shape, and a connecting cylinder portion 40C is provided at the bottom as a communication port to which the above-described guide tube 13 is connected. The upper opening is covered with a lid body 42 that is formed and is fitted on the upper portion thereof.

Incidentally, the upper end portion of the hot water storage tank 40 is provided with a washing water receiving portion 40A and a dew condensation water receiving portion 40B for receiving dew condensation water from the pressure adjusting means W in a protruding state outward, and a lid 42 is provided. In addition, the opening for connecting with the pressure adjusting means W is formed in the cover 42 so as to cover the storage portion 40A and the condensed water receiving portion 40B for receiving the washing water, and covering the condensed water receiving portion 40B in the lid body 42. Vk is formed.
The function of the washing water receiving unit 40A will be described later.

  The two up / down positions of the float 40 are the above-described lift position (see FIG. 13) for detecting the cleaning water level and the lift position (see FIG. 12) for detecting the above-described hot water discharge water level. The first water level detection unit T1 detects that the float 41 is located at the elevation position for detecting the high-level washing water level, and the second water level detection unit T2 detects the low-level hot water discharge water level. The float 41 is configured to be detected.

  The first water level detection unit T1 and the second detection unit T2 are configured using a photo-interrupter type optical sensor, and the first water level detection unit T1 is provided on the first sensor mounting unit 42a protruding from the upper part of the lid body 42. The second water level detection unit T2 is mounted on the second sensor mounting portion 42b that protrudes from the top of the lid body 42.

The lid 42 has an abnormal water level detection electrode 43 as an abnormal water level detecting means for detecting the abnormal water level described above, the upper end side being positioned above the lid body 42 and the lower end side being a hot water storage tank. It is provided in a state of projecting into 40.
In other words, as shown in FIG. 14, the abnormal water level detection electrode 43 has a second water level detection unit T1 on the high water level side of the first water level detection unit T1 and the second detection unit T2. When the set amount is higher than the water level detected at, the lid body 42 is equipped in a conductive state where it is conducted by hot water stored in the hot water storage tank 40.

As shown in FIGS. 9 and 12, the shaft portion 14 </ b> B of the float 41 is in a state where the float 14 is located at the elevation position on the low water level side among the plurality of elevation positions, that is, for detecting the hot water discharge water level. In the state located in the raising / lowering position, it forms in the length which positions the upper end part below the upper end of the hot water storage tank 40.
In addition, the guide unit U is configured to guide the shaft 40B of the float 40 positioned below the upper end of the hot water storage tank 40 so as to be positioned below the upper end of the hot water storage tank 40. Yes.

And the rocking lever 44 provided with the to-be-detected part 44a detected by the 2nd detection part T2 of the low water level side among the 1st water level detection part T1 and the 2nd detection part T2 is the shaft part 41B of the float 41. It is provided in a state where it is linked to the upper end of the upper and lower parts and swings up and down.
In other words, the swing lever 44 is pivotally supported by the second sensor mounting portion 42b so as to swing up and down around the horizontal axis X, and one end side portion of the horizontal axis X is the above-described detected portion. The other end side portion of the horizontal axis X is formed in the linkage portion 44b with the shaft portion 41B.
The linkage portion 44b is formed in a bifurcated shape, and is configured such that the upper end of the shaft portion 41B is engaged with the linkage portion 44b.

That is, as shown in FIG. 15, a pair of left and right flag bodies 41a project from the upper end portion of the shaft portion 41B and below the upper end, and the upper end portion of the shaft portion 41B is prevented from coming off. The projecting portion 41b is formed so as to protrude in the same direction as the pair of left and right flag bodies 41a.
Then, the bifurcated linkage portion 44b of the swing lever 44 is inserted between the protrusion 41b for preventing the detachment and the pair of left and right flag bodies 41a, and the upper end of the shaft portion 41 is a bifurcated linkage portion. 44b is configured to penetrate through 44b.

As shown in FIG. 13, the shaft 41B of the float 41 has its upper end in a state where the float 41 is located at the elevated position on the high water level side among the plurality of elevated positions, that is, in a state where the cleaning water level is detected. It is formed in such a length that the portion is positioned above the upper end of the hot water storage tank 40.
Then, one of the pair of flag bodies 41a described above is configured to function as a detected portion detected by the first detection portion T1.

The guide portion U is configured as a guide groove U1 that engages one of a pair of flag-like bodies 41a provided at the upper end portion of the shaft portion 41B over the entire lifting / lowering range of the float 41. That is, one of the pair of flag bodies 41a is configured to function as a guided piece engaged with the guide groove U1.
Incidentally, the guide unit U is also configured to include an auxiliary guide groove U2 that engages the flag-like body 41a that functions with the detected part detected by the first detection unit T1 of the pair of flag-like bodies 41a. However, although this auxiliary guide groove U2 exists up to the vicinity of the first detection unit T1, it does not exist at a place where the flag-like body 41a that functions as the detected unit is detected by the first detection unit T1. Therefore, the float 41 is not guided over the entire lifting / lowering range of the float 41.

  When the guide portion U is described further, the cover 42 that covers the upper opening of the hot water storage tank 40 is a downward concave that protrudes downward from the upper end of the water storage tank in a state where the lid 41 is positioned lower as the shaft 41B is inserted. 42A and an upper protruding portion 42B for forming a guide groove are formed, and the guide groove U1 is formed in a state extending over the recessed portion 42A and the upper protruding portion 42B of the lid body. Yes.

  Further, the lid body 42 is formed in a state having an upper protruding portion 42C for forming the auxiliary guide groove for forming the auxiliary guide groove U2, and the auxiliary guide groove U2 is formed in the recessed portion 42A and the lid in the lid body 42. It is formed in a state extending over the upper projecting portion 42C of the body 42.

When the above-described washing water receiving unit 40A is described, as shown in FIG. 5, when performing drainage operation, a part of hot water flowing through the drain pipe 12 passes through the branch pipe 12a to the water level sensor J side. The branch pipe 12 is configured to branch and flow, and is connected to a pipe connection portion 40a provided in the washing water receiving portion 40A.
Accordingly, when a drainage operation is performed, a part of hot water drained by the dual-purpose pump 6 flows into the washing water receiving portion 40A and then discharged into the hot water storage tank 40, whereby the hot water storage tank 40 The wall surface can be cleaned.

[Another embodiment]
Next, another embodiment will be described.
(A) In the above embodiment, the hot and cold intermittent means includes a first on-off valve that opens and closes the water supply channel, a second on-off valve that opens and closes the branch for the cleaning tank, and a constant flow valve equipped in the dehumidification branch However, in addition to these valves, an opening / closing valve for opening / closing the dehumidifying branch may be provided.
And when providing the on-off valve which opens and closes the dehumidification branch path, you may implement by the form which abbreviate | omits the 1st on-off valve which opens and closes a water supply path.

(B) In the above embodiment, the drawer type dishwasher in which the cleaning tank is provided so as to be freely drawn out and stored in the horizontal direction with respect to the main body case part is illustrated, but the cleaning tank is stored in the main body case part. The present invention can also be applied to a dishwasher in which the washing space of the washing tub is opened and closed by opening and closing the front door of the main body case.

(C) In the above-described embodiment, the dehumidifying unit includes the ejecting means for ejecting dehumidified hot water downward with respect to the air passing through the ascending path in the ventilation path, and the ascending path is directed upward. The case where the air to be ventilated is cooled by contact with dehumidified hot water jetted downward by the jetting means to condense moisture in the air and dehumidify is exemplified. The configuration of the part can be variously changed.
For example, by installing a heat exchanger with heat exchange fins in the ventilation path and flowing hot water for dehumidification through the heat exchanger, the air flowing through the ventilation path is cooled by contact with the heat exchanger. The moisture in the air may be condensed and dehumidified.

(D) In practicing the present invention, various forms of water level detection means can be applied instead of the water level detection sensor described in the above embodiment.

DESCRIPTION OF SYMBOLS 1 Main body case part 4A Water supply path 4B Washing tank branch path 4C Dehumidification branch path 5 Water supply port 6 Drain pump 9 Heating means 21 Air supply port 22 Air suction port 23 Ventilation means 25 Jetting means D Cleaning tank E Hot water intermittent means F Ventilation Path f1 ascending path part f2 descending path part G dehumidifying part H control means J water level detection sensor L alarm means Q cleaning space R1 flexible hose R2 flexible hose V1 first on-off valve V2 second on-off valve V3 constant flow valve

Claims (6)

A water supply port for supplying hot water for cleaning and rinsing into the cleaning space of the cleaning tank;
By cooling the air in the cleaning space circulated by the ventilation means through the ventilation path extending from the air suction port to the cleaning space and the air supply port to the cleaning space by contact with hot water for dehumidification, A dehumidifying part that dehumidifies by condensing moisture in the air;
Heating means for heating the air in the cleaning space;
Hot water intermittent means for intermittently supplying hot water to the water supply port and intermittently supplying hot water to the dehumidifying section;
Control means for executing a cleaning process for cleaning the cleaning object in the cleaning space, a rinsing process for the cleaning object, and a drying process for drying the cleaning object,
The control means is
In the cleaning process and the rinsing process, the hot water intermittent means is controlled so as to store hot water at a cleaning water level in the cleaning space by supplying hot water from the water supply port, and to perform cleaning and rinsing, and
In the drying process, the ventilation unit, the heating unit, and the heating unit are configured to contact the hot water for dehumidification and the air passing through the ventilation path while heating the air in the cleaning space by the heating unit. A dishwasher configured to control the hot water intermittent means,
The dehumidifying part is configured to flow hot water after dehumidifying treatment into the cleaning tank,
In the cleaning process and the rinsing process, the control means supplies the hot water to the cleaning tank from the dehumidifying section in addition to supplying hot water into the cleaning tank from the water supply port. A dishwasher that is configured to control. The hot water interrupting means is branched from a first on-off valve for opening and closing a water supply path connected to a water supply source, a washing tank branch path branched from the water supply path and connected to the water supply port, and the water supply path. Of the dehumidifying branch connected to the dehumidifying section, a second on-off valve that opens and closes the cleaning tank branch, and the first on-off valve and the second open / close equipped on the dehumidifying branch. A constant flow valve that restricts the flow rate of hot water flowing through the dehumidifying branch path to be less than the flow rate of hot water flowing through the washing tank branch path when the valve is open;
When the control means supplies hot water in the cleaning process and the rinsing process, the first on-off valve and the second on-off valve are opened, and when hot water is supplied in the drying process, the first on-off valve The dishwasher according to claim 1, wherein the dishwasher is configured to open and close the second on-off valve. The water level detection means for detecting the level of hot water in the cleaning tank is configured to detect that the hot water discharge level corresponds to a state in which most of the hot water is discharged from the cleaning tank,
When the control means detects that the hot water level in the washing tank is higher than the hot water discharge water level in the operation stop state, the hot water discharge water level is detected by the water level detection means. Until then, the abnormality determination drainage treatment for operating the drainage pump that drains the hot water stored in the washing tank is executed, and the abnormality determination drainage treatment is executed a set number of times while the operation is stopped. 3. The dishwasher according to claim 2, wherein the dishwasher is configured to execute an alarm process for operating an alarm means. The cleaning tank is provided so as to be freely drawn out and stored along the horizontal direction with respect to the main body case portion.
The first on-off valve, the second on-off valve, and the constant flow valve are provided at a location on the back side of the main body case portion,
A portion connecting the second on-off valve and the water supply port in the washing tank branch path is configured by a flexible hose,
The dishwasher of Claim 2 or 3 by which the part which connects the said constant flow valve and the said dehumidification part in the said dehumidification branch is comprised with the flexible hose. The ventilation path is provided on the front side of the cleaning tank,
The dishwasher according to claim 4, wherein the dehumidifying unit is provided in the ventilation path, and the ventilation means is provided so as to ventilate the ventilation path. The air supply port and the air suction port are formed at lower positions in the side wall portion of the cleaning space,
The ventilation path is configured in an inverted U shape including an upward path portion extending upward from the air suction port and a downward path portion extending downward from the upper end portion of the upward path portion toward the air supply port. ,
The dehumidifying part is
Ejecting means for ejecting dehumidified hot water downward with respect to the air passing through the ascending path portion in the ventilation path, and air venting the ascending path portion upward by the ejecting means. It is configured to dehumidify by condensing moisture in the air by cooling with contact with dehumidified hot water sprayed downward, and the dehumidified hot water and condensed hot water are the air. The dishwasher according to any one of claims 1 to 5, wherein the dishwasher is configured to flow into the washing tank through a suction port.

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