JP5319362B2 - Dishwasher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dishwasher allowing deodorization of air in a washing space by effectively using a dehumidifying part provided for dehumidifying the air in the washing space. <P>SOLUTION: The dishwasher includes: a ventilation means 23 for circulating the air in the washing space Q through a ventilation passage F; the dehumidifying part G for performing dehumidification by condensing moisture in the air by cooling the air circulating through the ventilation passage F through a contact with water for dehumidification; a heating means 9 for heating the washing space Q; and a control means H for controlling operation. The control means H performs the control for stopping heating operation by the heating means 9 and for circulating the air in the washing space Q through the ventilation passage and also performs deodorization processing by controlling operation for eliminating odor components in the air through the contact of the water for dehumidification with the air passing through the ventilation passage F in the dehumidifying part G. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention is provided with control means for executing a cleaning process for cleaning an object to be cleaned in an openable / closable cleaning space, a rinsing process for the object to be cleaned, and a drying process for drying the object to be cleaned. A ventilation means for circulating air in the cleaning space through a ventilation path extending from an air suction port to the cleaning space and an air supply port to the cleaning space, and cooling the air circulated through the ventilation path by contact with dehumidification water. And a dehumidifying part that dehumidifies by condensing moisture in the air, and a heating unit that heats the air in the cleaning space, and the control unit uses the heating unit as the drying process in the cleaning space. In order to circulate the air in the cleaning space through the ventilation path in a state where the dehumidification water and the air passing through the ventilation path are in contact with each other while heating the air, Stage relates configured dishwasher to control the operation of the heating means and the dehumidifying part.

  Such a dishwasher is used for washing dishes such as dishes and tea bowls. As a standard usage pattern, when an object to be cleaned is stored in the cleaning space, The cleaning water is jetted from the provided cleaning nozzle toward the object to be cleaned, and the cleaning process is performed. Next, the cleaning object is rinsed while the rinse water is jetted from the cleaning nozzle. However, depending on the case, rinsing and drying treatments may be performed on objects to be cleaned that do not require washing such as hand washing. It may be used in various usage forms, such as being used as is.

  In addition, the dishwasher is provided with a ventilation means for circulating the air in the cleaning space through the ventilation path, and dehumidification by cooling the air circulated through the ventilation path by contact with dehumidification water and condensing moisture in the air. In the drying process, the air in the cleaning space is circulated while dehumidifying, so that moist air is not discharged outside during the drying process. Inconvenience that moist air is blown to a person or other equipment existing at a place where the dishwasher is installed is suppressed, and the user-friendliness is improved (for example, see Patent Document 1).

  Although detailed description of the drying process is not described in Patent Document 1, in the drying process, air in the cleaning space is heated using a heater as a heating unit provided at the bottom of the cleaning space. In the drying process, the air in the cleaning space is heated by the heating means to evaporate the moisture from the object to be cleaned, and the dehumidifying part performs the dehumidifying process in a high temperature and humidity state. Can be dried.

JP-A-8-131391

  In such a dishwasher, leftovers are attached to dishes such as dishes and teacups as objects to be cleaned, and odor components generated due to these leftovers etc. may exist in the cleaning space. However, in a conventional dishwasher, that is, a dishwasher provided with ventilation means and a dehumidifying unit and configured to circulate the air in the washing space while dehumidifying in the drying process, the air in the washing space is provided. Is circulated through the ventilation path and circulates in a state where it is not discharged to the outside. Therefore, the odor components as described above may remain in the cleaning space for a long time.

  If odorous components may remain in the cleaning space as described above, for example, when the cleaning object such as tableware is taken out from the cleaning space after the drying process is completed, and the cleaning object is stored in the cleaning space at the next use. In such cases, the user may become uncomfortable with the odor component and cannot be used as a dishwasher, and there is room for improvement in this respect.

  This invention is made | formed in view of the said situation, The objective is to provide the dishwasher which can be used favorably by deodorizing the air of a washing space.

The dishwasher according to the present invention is a control means for executing a cleaning process for cleaning an object to be cleaned in an openable and closable cleaning space, a rinsing process for the object to be cleaned, and a drying process for drying the object to be cleaned. A ventilation means for circulating the air in the cleaning space through a ventilation path extending from the air suction port to the cleaning space and the air supply port to the cleaning space, and dehumidifying water for the air circulated through the ventilation path. A dehumidifying part that cools by contact with the water and dehumidifies by condensing moisture in the air, and a heating means that heats the air in the cleaning space,
The control means circulates the air in the cleaning space through the ventilation path by the ventilation means while heating the air in the cleaning space by the heating means as the drying process, and the dehumidifying section In order to dehumidify the air circulated through the ventilation path, it is configured to control the operation of the ventilation means, the heating means and the dehumidifying unit, the first characteristic configuration is
At the bottom of the cleaning tank that constitutes the cleaning space in the internal space, a water storage recess is formed,
The dehumidifying unit is configured to eject water supplied in a dehumidifying water supply channel from the ejection unit as the dehumidifying water, and store the ejected dehumidifying water in the water storage recess,
The control means is
In the state where the heating operation by the heating means is stopped, the air in the cleaning space is circulated through the ventilation path by the ventilation means, and the dehumidifying water and the air passing through the ventilation path in the dehumidifying section to remove odor components in the air by contact of said ventilation means, said being heating means and the deodorizing process of controlling the operation of the dehumidifying unit configured to run until the elapse of the set time for deodorization, and When the deodorizing process is performed, the dehumidifying water stored in the water storing recess is discharged to the outside .

  That is, when the deodorizing process is executed by the control means, that is, the heating operation by the heating means is stopped, the air in the cleaning space is circulated through the ventilation path by the ventilation means, and dehumidification is performed by the dehumidifying unit. By controlling the operation of the ventilation means, the heating means and the dehumidifying part in order to remove the odor components in the air by contact between the water and the air passing through the ventilation path, the odor components present in the cleaning space can be removed. .

  In addition, in the deodorizing operation, the air in the cleaning space is circulated through the ventilation path, and the dehumidifying section is brought into contact with the dehumidifying water and the air, so that odor components contained in the air, such as ammonia or Odor components such as trimethylamine are dissolved in dehumidifying water and absorbed to remove them from the air, thereby deodorizing the air.

  And, the odor component is difficult to dissolve in water under a high temperature environment where the heating means is heated, for example, but has a property of being easily dissolved in water at room temperature or a lower temperature close thereto. Since the air is circulated in a state where the heating operation by the heating means is stopped and the temperature of the air in the cleaning space is lowered, the odor component is removed when the air circulated in the dehumidifying section and the dehumidifying water come into contact with each other. It can be properly removed from the air by dissolving in dehumidifying water.

  As a result, it is possible to remove odorous components present in the cleaning space, and when the user takes out the cleaning target after drying from the cleaning space, or when the cleaning target is stored in the cleaning space at the next use, etc. In this case, it can be avoided that the user becomes uncomfortable with the odor component.

By the way, as the operation mode of the deodorizing process, after the drying process ends when the operation mode in which the control means executes only the deodorizing process alone based on the operation command and the operation including the drying process is instructed. There are various operation modes such as an operation mode for performing the deodorizing process.
And as an operation form including a drying process, for example, an operation form in which each of a washing process, a rinsing process, a drying process, and a deodorizing process is performed in that order, a rinsing process, a drying process, and a deodorizing process are performed. There are an operation mode in which processing is performed, an operation mode in which drying processing and deodorization processing are performed, and the like.

  Therefore, according to the 1st characteristic structure of this invention, it came to be able to provide the dishwasher which can be used favorably by deodorizing the air of a washing space.

In addition to the first feature configuration, the second feature configuration of the present invention includes:
The air suction 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. There is in point.

  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 provided with 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.

  Therefore, according to the second characteristic configuration of the present invention, in addition to the operation and effect of the first characteristic configuration, it is possible to avoid the clogging of leftovers scattered in the cleaning process and the rinsing process in the ventilation path, and to improve the performance over a long period of time. It came to be able to provide the dishwasher which can be used.

In addition to the first feature configuration or the second feature configuration, the third feature configuration of the present invention includes:
The dehumidifying part has an upper passage guide portion for guiding to pass toward the dehumidified air to upper and said jetting means for jetting towards said dehumidifying water downward to the air passing upwardly comprise, a guide air to pass upward in the upper passage guide portion, condensing the moisture in the cooled air by contact with the dehumidification water ejected downward by the ejection means It is in the point comprised so that it may dehumidify by making.

  That is, when the air to be dehumidified circulated and ventilated by the ventilation means is guided to the dehumidifying section, it is guided to pass upward through the upper passage guide section, and so passes upward. The dehumidifying water is jetted downward by the jetting means with respect to the air thus guided.

  Since the air passing upward and the dehumidifying water ejected downward by the ejecting means are brought into gas-liquid contact to condense moisture in the air, the air and the dehumidifying water ejected face each other. The dehumidifying water falling downward will contact the air before dehumidification that is vented upward, and the dehumidifying water going downward will contact the air. Thus, the state in which moisture in the air is condensed continues for as long as possible.

  Moreover, not only when performing the drying process, but also when performing the deodorization process, when the air guided to pass upward through the upper passage guide unit and the dehumidifying water come into contact with each other, The state where the dehumidifying water heading downward comes into contact with the air and the odor component is dissolved and absorbed in the dehumidifying water continues as long as possible.

  As a result, when performing a drying process, it is possible to dehumidify the air in the cleaning space while reducing the amount of dehumidifying water used as much as possible, and when performing a deodorizing process, the use of dehumidifying water is possible. It is possible to deodorize the air in the cleaning space while reducing the amount as much as possible.

  Therefore, according to the third characteristic configuration of the present invention, it is possible to dehumidify and deodorize the air in the cleaning space with a small amount of dehumidifying water in addition to the effects of the first characteristic configuration or the second characteristic configuration. I was able to provide a dishwasher.

In addition to the second feature configuration, the fourth feature configuration of the present invention includes:
The dehumidifying unit, provided with the ejection means for ejecting toward the dehumidification water downward to the air passing through the rise path portion in said ventilation path, the air passing through toward the rising path portion upward , in that it is configured to dehumidify by cooled condensing moisture in the air by contact with the dehumidification water ejected downward by the ejection means.

  That is, the dehumidifying section causes the dehumidifying water to be ejected downward by the ejection means with respect to the air passing upward through the rising path portion by the ventilation operation of the ventilation means, and the air passing upward through the rising path portion. The water in the air is condensed by cooling with contact with the dehumidifying water that ejects water.

  Since the air passing upward and the dehumidifying water ejected downward by the ejecting means are brought into gas-liquid contact to condense moisture in the air, the air and the dehumidifying water ejected face each other. The dehumidifying water ejected downward is in contact with the air before dehumidification that is vented upward, and the dehumidifying water traveling downward is the air. The state of contacting and condensing moisture in the air will continue for as long as possible.

  Moreover, not only when performing the drying process, but also when performing the deodorization process, when the air guided to pass upward through the upper passage guide unit and the dehumidifying water come into contact with each other, The state where the dehumidifying water heading downward comes into contact with the air and the odor component is dissolved and absorbed in the dehumidifying water continues as long as possible.

  As a result, when performing a drying process, it is possible to dehumidify the air in the cleaning space while reducing the amount of dehumidifying water used as much as possible, and when performing a deodorizing process, the use of dehumidifying water is possible. It is possible to deodorize the air in the cleaning space while reducing the amount as much as possible.

  Further, by using the rising path portion in the ventilation path, it is possible to adopt a configuration in which the upward air and the dehumidifying water to be ejected are brought into contact with each other while moving in an opposing direction, and the air passes upward. It is possible to perform dehumidification and deodorization of the air in the cleaning space in a state where there is no disadvantage incurring a complicated structure such as providing the dehumidifying part with the special configuration.

  Therefore, according to the fourth feature configuration of the present invention, in addition to the operational effects of the second feature configuration, the dehumidification of the air in the cleaning space can be performed with a small amount of dehumidification water in a state where there is no disadvantage that causes the structure to be complicated. A dishwasher capable of deodorizing can be provided.

In addition to the third feature configuration or the fourth feature configuration, the fifth feature configuration of the present invention includes:
The dehumidifying part has a plate-like heat transfer member of the vertical posture provided in a state where a plurality juxtaposed at intervals along the plate thickness direction, the dehumidification water by the ejection means towards a plurality of heat transfer bodies by ejecting the air flowing upwardly through between the plurality of heat transfer body, it flows down between the contact and the heat transfer between the dehumidifying water flows down the surface of the heat transfer member the It is in the point comprised so that it may cool by contact with the water for dehumidification and may dehumidify by condensing the water | moisture content in air.

  That is, a plurality of plate-like heat transfer bodies in a vertically oriented posture are provided in a state of being juxtaposed at intervals along the plate thickness direction, and dehumidifying water is jetted from the jetting means toward the plurality of heat transfer bodies. The air flowing through the ventilation path by the ventilation operation of the ventilation means flows upward between the plurality of heat transfer bodies, and the air contacts the dehumidification water flowing down the surface of the heat transfer body. And the water | moisture content in air is condensed by cooling by the contact with the dehumidification water which flows down between heat-transfer bodies.

  That is, the air that passes upward through the plurality of heat transfer bodies is ventilated in a state of being divided into a plurality of divided path portions partitioned by the plurality of heat transfer bodies, and of the plurality of divided path portions. In each case, cooling is performed by contact with dehumidification water flowing down the surface of the heat transfer body and contact with dehumidification water flowing down between the heat transfer bodies, so that the air passing upward and the dehumidification water The contact area can be increased as much as possible, and the air can be dehumidified and dried in a state where the amount of dehumidifying water used is suppressed.

  Moreover, not only when performing the drying process, but also when performing the deodorizing process, the contact area between the air flowing through the ventilation path and the dehumidifying water can be made as large as possible. There is also an advantage that the odor component contained in the air can be dissolved in the dehumidifying water and absorbed in a state where the amount of the odor is further reduced.

  Therefore, according to the fifth characteristic configuration of the present invention, in addition to the operational effects of the third characteristic configuration or the fourth characteristic configuration, the air in the cleaning space can be dried and consumed in a state where the amount of dehumidifying water used is further reduced. The dishwasher which can perform an odor was able to be provided.

In addition to any of the first to fifth feature configurations, the sixth feature configuration of the present invention includes:
The control means is
When execution of the operation including the drying process is instructed, the deodorizing process is performed after the drying process is performed.

  That is, when the control means is instructed to execute the operation including the drying process, the deodorizing process is executed after the drying process is executed. Therefore, the deodorizing process is executed after the control means executes the drying process. Processing will be executed. When this deodorizing operation is added, since the air in the cleaning space is heated by the heating means during the drying process, the deodorizing process is started and the heating operation of the heating means is stopped. However, the temperature of the cleaning space is initially high, but the circulation space is ventilated in the ventilation path by the ventilation means, so that the temperature of the cleaning space decreases with time. become. In other words, immediately after the start of the deodorizing process, the temperature of the cleaning space is high and the odor component is difficult to dissolve in water, but when the temperature of the cleaning space decreases, the odor component contained in the air in the cleaning space dissolves in the dehumidifying water and is absorbed. It is done.

  By the way, in the case where the deodorizing operation is commanded alone, if the user forgets the driving command, the deodorizing operation is not performed, so there is a possibility that odor components remain in the cleaning space for a long time. In the characteristic configuration, since the control means performs the deodorizing process after performing the drying process, the air in the cleaning space is always deodorized when the drying process is performed. It is possible to accurately avoid the odor component remaining for a long time.

  Therefore, according to the sixth feature configuration, in addition to the operational effects of any of the first feature configuration to the fifth feature configuration, it is possible to accurately avoid the odor component remaining in the cleaning space for a long time after the drying process is completed. Thus, a dishwasher that can be used satisfactorily can be provided.

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 The exploded perspective view which looked at the washing tank from the front side Perspective view showing the configuration of the drying unit Front view showing the configuration of the drying unit Schematic diagram of dishwasher Schematic perspective view showing the flow state of drying air Flow chart showing control operation

Embodiment
A dishwasher according to the present invention will be described with reference to the drawings.
As shown in FIG. 1 to FIG. 4, a main body portion 1 having an open front portion is provided, and a drawer portion 2 including a cleaning tank D having a square shape in plan view is drawn out from the main body portion 1. A drawer-type dishwasher as an example of a dishwasher is configured to be movable and retractable.
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.

  And the inner cover part which obstruct | occludes the upper surface part of the washing tank D in the state which accommodated the drawer part 2 in the main-body part 1, and opens the upper surface part of the washing tank D in the state which pulled out the drawer part 2 from the main body part 1 3 is provided, and an openable / closable cleaning space Q is formed 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 FIG. 7, a water supply path 4 that supplies water to the cleaning tank D and a water supply valve 4 a that opens and closes the water supply path 4 are provided.
Below the bottom of the washing tank D in the drawer 2 is provided a dual-purpose pump 6 that functions as a cleaning pump in the forward rotation and functions as a drainage pump in the reverse rotation. An electric heater 9 or the like as a heating means is arranged, and a cleaning basket 10 for storing and placing an object to be cleaned such as tableware is detachably mounted inside the cleaning tank D.

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.
A water level sensor J is connected to the water storage recess S through a guide tube 13.
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.

As shown in FIGS. 2, 3, 4, and 7, among the four side walls 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, has a drying unit K. Is attached.
That is, as shown in FIG. 4, 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 away from the left and right sides on the lower side. 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 is a ventilation means for circulating 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 15 fixed to the front side wall portion Df of the cleaning tank D. And a dehumidifying part G that dehumidifies 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 casing 15 includes a front-side divided casing portion 15A and a rear-side divided casing portion 15B, and is configured to be able to surround the entire drying unit K by connecting them. And FIG. 5 has shown the state which removed 15 A of front side division | segmentation casing parts.

  The dehumidifying part G includes an ejection nozzle 25 as ejection means for ejecting dehumidification water downward with respect to the air passing upward through the ascending path part f1, and passes upward through the ascending path part f1. The air to be cooled is cooled by contact with the dehumidifying water ejected from the ejection nozzle 25 to condense moisture in the air.

  If it adds explanation, as shown in Drawing 5 and Drawing 6, dehumidification part G is provided in the state where a plurality of tabular heat-transfer bodies 24 used as a lengthwise posture are arranged in parallel along the sheet thickness direction at intervals. Then, the dehumidifying water is ejected from the ejection nozzle 25 toward the plurality of heat transfer bodies 24, thereby causing the air flowing upward through the plurality of heat transfer bodies 24 to flow down the surface of the heat transfer body 24. By cooling with contact with dehumidification water and contact with dehumidification water flowing down between the heat transfer bodies 24, moisture in the air is condensed and dehumidified.

  The flow of air in the ventilation path F will be described. As shown in FIG. 6, when the circulation fan 23 composed of a sirocco fan is operated, the circulation fan 23 sucks air from the suction opening 23A. The internal air flows upward through the ascending path portion f <b> 1 formed in a state defined by the lateral side wall portion 15 a of the casing 15 and the partition wall 40. The air discharged from the discharge portion 23B of the circulation fan 23 flows downward through the descending path portion f2 and is supplied from the air supply port 21 into the cleaning space Q.

As shown in FIG. 5, the flat plate-like heat transfer body 24 is in a state in which the lateral width extends over substantially the entire lateral width of the rising path portion f1 and the vertical width extends over the long path along the rising path portion f1. It is provided in a vertically oriented posture, and is held by the casing 15 with the holding members 30 spaced apart in the plate thickness direction on both the left and right sides so as to be juxtaposed at intervals along the plate thickness direction. It has a configuration.
Further, the ejection nozzle 25 is provided in a state of being positioned above the plurality of heat transfer bodies 24, and the heat transfer is performed in the ejection nozzle 25 so that the plurality of heat transfer bodies 24 eject the dehumidification water evenly. A plurality of jet nozzles are formed in a state where the bodies 24 are arranged at intervals along the arrangement direction of the bodies 24.

  By configuring in this way, the rising path portion f1 is partitioned into a plurality of divided path portions partitioned by the plurality of heat transfer bodies 24, and the air passing through the rising path portion f1 upward is a plurality of It will be ventilated in a state of being divided into divided path parts, and dehumidification water can be ejected accurately from a plurality of outlets to each of the plurality of divided path parts. In each case, the air can be accurately cooled by contact with dehumidification water flowing down the surface of the heat transfer body 24 and contact with dehumidification water flowing down between the heat transfer bodies 24, and air passing upward and dehumidification water The contact area with can be made as wide as possible.

  Therefore, the upper passage guide part T that guides the air to be dehumidified to pass upward by the plurality of heat transfer bodies 24 is configured, so that the dehumidification part G passes the air to be dehumidified upward. An upper passage guide T and an ejection nozzle 25 serving as ejection means for ejecting dehumidification water downward with respect to the air passing upward. The air guided so as to pass through is cooled by contact with the dehumidifying water jetted downward by the jet nozzle 25 and is dehumidified by condensing moisture in the air.

The dehumidifying water ejected from the ejection nozzle 25 flows into the cleaning tank D through the air suction port 22 and is stored in the water storage recess S.
As shown in FIG. 7, a dehumidification water supply path 26 for supplying water to the ejection nozzle 25 is provided, a dehumidification water interrupting valve 27 for opening and closing the dehumidification water supply path 26, and a governor 28 for stabilizing the supply water pressure are provided. It has been. The governor 28 for stabilizing the feed water pressure is configured to stabilize the feed water pressure and maintain the flow rate of water supplied to the ejection nozzle 25 at a substantially constant level (for example, 0.15 liter / min).

  Then, in the state where the electric heater 9 is heated, the circulation fan 23 is ventilated and the dehumidifying water is ejected from the ejection nozzle 25 so that the air sucked from the cleaning space Q is dehumidified in the dehumidifying part G. After dehumidifying, the air is supplied to the cleaning space Q as drying air, and the supplied air is heated by the electric heater 9 so that the drying operation for drying the object to be cleaned in the cleaning space Q can be performed. It is configured.

Further, with the electric heater 9 stopped, the circulation fan 23 is ventilated and the ejection nozzle 25 is ejected with dehumidifying water, thereby removing odor components in the air sucked from the cleaning space Q. After being absorbed in the dehumidifying water by G, the deodorizing operation for deodorizing the cleaning space Q can be performed by supplying the water to the cleaning space Q.
In addition, when the air in the cleaning space Q is ventilated through the ventilation path F and brought into contact with the dehumidifying water ejected by the dehumidifying section G, odorous components such as ammonia and trimethylamine contained in the air are introduced. It dissolves in dehumidifying water and absorbs it, thereby eliminating the odor by removing it from the circulating air.

The air flow in the drying operation will be described. As shown in FIG. 8, 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 the main flow. However, the fluid flows toward the rear side wall DR, and then moves 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. However, the air flows in a form that is discharged from the air suction port 22, and air easily flows in the lower portion of the cleaning tank D where the air suction port 22 is located. is there.
Therefore, by allowing air to flow through the entire cleaning object in the cleaning tank D and drying the cleaning object efficiently, the drying time can be shortened.

  As shown in FIG. 7, the drawer 2 is equipped with a control unit H as a control means for controlling the operation, and this control unit H is based on a command input at the operation unit SS, and is supplied with a water supply valve 4a. The operation of the dual-purpose pump 6, the electric heater 9, the circulation fan 23, and the dehumidifying water intermittent valve 27 is controlled, and the object to be cleaned in the cleaning space Q inside the cleaning tank D is cleaned with hot water as a cleaning liquid. A cleaning operation for performing the cleaning process, a rinsing operation for rinsing the object to be cleaned with the rinse water stored in the water storage recess S of the cleaning tank D and heated by the electric heater 9, In a state where the drainage operation for draining the rinse water stored in the water storage recess S of the cleaning tank D is performed and the electric heater 9 is heated, the ventilation operation of the circulation fan 23 and the ejection nozzle 25 Dehumidification water ejection operation A deodorizing process for performing a drying operation for performing the drying process and a deodorizing process for performing the ventilation operation of the circulation fan 23 and the dehumidifying water ejection operation of the ejection nozzle 25 in a state where the electric heater 9 is stopped. It is for driving.

  That is, in the drying process, the control unit H heats the air in the cleaning space Q with the electric heater 9 while bringing the dehumidification water into contact with the air passing through the ventilation path F. In order to circulate through the ventilation path F, the operations of the circulation fan 23, the electric heater 9, and the dehumidifying part G are controlled.

  In the deodorizing operation, the control unit H circulates the air in the cleaning space Q through the ventilation path F with the circulation fan 23 while the heating operation by the electric heater 9 is stopped, and the dehumidifying unit G The operation of the circulation fan 23, the electric heater 9 and the dehumidifying part G is controlled so as to remove odor components in the air by contact between the dehumidifying water and the air passing through the ventilation path F.

Next, the operation performed by the control unit H will be described.
That is, the user operates the operation unit SS in the order of the cleaning operation, the rinsing operation, the drying operation, and the deodorizing operation in the order of the cleaning operation, the rinsing operation, the drying operation, and the deodorizing operation. It can be selected from various driving courses, such as a hand-washing driving course, a drying-only driving course, and a drying-only driving course that run in the order of deodorizing operation. In addition, a standard driving course, a careful driving course, and a speedy driving course are available as continuous driving courses. A course and a fast driving course are provided, but in this embodiment, only the standard driving course will be described.

The control operation of the control unit H will be described based on the flowchart of FIG.
First, it is detected by the storage switch (not shown) that the drawer 2 is stored in the storage position of the main body 1 (# 1), and the power switch of the operation unit SS is turned on (# 2). A course is selected (# 3). In the present embodiment, the description will be continued assuming that the standard driving course is selected.
When the start switch of the operation unit SS is turned ON (# 4), the standard operation course is started, and the cleaning operation (# 5), the rinsing operation (# 6), the drain operation (# 7), and the drying operation (#) 8) The deodorizing operation (# 9) and the drainage operation (# 10) are sequentially executed.

  In the washing operation, first, the water supply valve 4a is opened, the cleaning water is supplied into the cleaning tank D through the water supply passage 4, and when the water level sensor J detects that the water level has reached the set water level, A cleaning operation for performing a water supply operation for closing the valve 4a, and then causing the dual-purpose pump 6 to rotate forward and the heater 9 to eject the cleaning water from the cleaning nozzle 8 toward the object to be cleaned is set for the cleaning operation. This operation is performed until time elapses, and then the dual-purpose pump 6 is operated in reverse to perform a draining operation for draining the cleaning water in the cleaning tank D.

In the rinsing operation, a water supply operation similar to the water supply operation in the above-described cleaning operation is performed, the rinsing water is stored at the set water level at the bottom of the cleaning tank D, and then the dual-purpose pump 6 is operated in the forward direction to move toward the object to be cleaned. Then, a rinsing water jetting operation for jetting rinsing water from the cleaning nozzle 8 and a draining operation for draining the rinsing water stored in the bottom of the cleaning tank D by reversely operating the combined pump 6 until the set time elapses. The rinsing operation is performed twice, and finally the heating rinsing operation is performed.
The heating rinsing operation is to be cleaned with the rinsing water heated by the heater 9 by operating the combined pump 6 and the heater 9 after storing the set water level at the bottom of the cleaning tank D by the water supply operation described above. When the temperature of the rinse water reaches the finishing set temperature (for example, 67 ° C.) by the temperature sensor (not shown), the heating rinse operation is terminated.

  In the drainage operation, the dual-purpose pump 6 is operated in reverse to drain the rinse water stored in the bottom of the cleaning tank D. The water level sensor J discharges the rinse water stored in the bottom of the cleaning tank D. This is done until it is detected.

In the drying operation, with the electric heater 9 being heated, the circulation fan 23 is ventilated and the ejection nozzle 25 is ejected with dehumidifying water. 25 minutes).
The dehumidification water ejection operation of the ejection nozzle 25 will be described. The dehumidification water intermittent valve 27 is opened, water is supplied to the ejection nozzle 25 through the dehumidification water supply passage 26, and dehumidification water is ejected from the ejection nozzle 25. At that time, the flow rate of water is maintained substantially constant (for example, 0.15 liter / min) by the governor 28 for stabilizing the feed water pressure. The dehumidifying water ejected from the ejection nozzle 25 flows downward through the ascending path portion f1 in the ventilation path F, is guided by the inner surface of the casing 15, and is stored in the water storage recess S.
And every time set time passes so that the electric heater 9 may not be immersed by the dehumidification water stored or the water level of the water storage recess S is the set water level for drainage by the water level sensor J. When it is detected that there is a waste water treatment, the dual-purpose pump 6 is reversely operated to discharge the dehumidifying water to the outside.

When the drying operation is started and the set time for drying elapses, the operation proceeds to the deodorizing operation.
That is, with the heating operation by the electric heater 9 stopped, the circulation fan 23 is ventilated, the dehumidifying water intermittent valve 27 is opened, and water is supplied to the ejection nozzle 25 through the dehumidifying water supply channel 26. Then, the dehumidifying water is ejected from the ejection nozzle 25. When the deodorization set time elapses after the start of the deodorization operation, the ventilation operation of the circulation fan 23 is stopped, the dehumidification water intermittent valve 27 is closed, and the supply of water to the ejection nozzle 25 is stopped. The dehumidifying water ejection operation of the ejection nozzle 25 is stopped.

  In this deodorizing operation, as in the drying operation, each time the set time elapses, or when the water level sensor J detects that the water level in the water storage recess S is the set water level for drainage, The pump 6 is operated in reverse to perform a drainage process for discharging the dehumidifying water ejected from the ejection nozzle 25 and stored in the water storage recess S to the outside.

  The drainage operation is performed after the deodorizing operation is completed. In this drainage operation, the drainage operation in which the dual-purpose pump 6 is reversely operated to discharge the dehumidification water stored in the water storage recess S, and the stored dehumidification water is drained by the water level sensor J. Do this until it is detected.

Therefore, when the execution of the operation including the drying process is instructed, the control unit H is configured to execute the deodorizing process after executing the drying process.
When the water supply operation is executed in the cleaning operation and the rinsing operation, the process of supplying water to the ejection nozzle 25 through the dehumidification water supply passage 26 by opening the dehumidification water intermittent valve 27 is also performed. In this way, water is supplied from the dehumidifying water supply channel 26 to the dehumidifying part G without wasting water so as to keep the dehumidifying part G as clean as possible.

[Another embodiment]
(1) In the above embodiment, as an operation including a drying process, when the continuous operation course is instructed, an example is shown in which the deodorizing process is performed after the drying process is performed. Even when various driving courses such as the hand washing driving course and the drying only driving course are instructed as the operation including the drying process, the deodorizing process may be executed after the drying process is executed. . In short, any operation including a drying operation may be performed. When an operation including such a drying process is performed, the deodorizing process is performed after the drying process is performed.

  Further, instead of the operation including the drying process, only the deodorizing operation can be commanded alone so that the control unit executes only the deodorizing operation when the deodorizing operation is commanded. It may be configured.

(2) In the above embodiment, the dehumidifying part is provided in the ascending path portion in the ventilation path, and a plurality of plate-like heat transfer bodies having a vertically oriented posture are juxtaposed at intervals along the plate thickness direction. An example is shown in which the upper passage guide portion is formed by the plurality of plate-like heat transfer members and the discharge nozzles for discharging the dehumidifying water to the plurality of heat transfer plates are illustrated. The following various configurations can be used.

  For example, the configuration in which the air and the dehumidifying water are brought into contact with each other includes various configurations such as a configuration in which water droplets are sprayed on the blade body rotated by the driving means and the water is finely crushed and scattered by the blade body to be in contact with the air. It can be implemented in the form.

  Further, instead of the configuration provided in the ascending path part in the ventilation path, the dehumidifying part is provided in the middle of the horizontally extending path part or descending path part located at the upper end of the ventilation path, and the inside of the dehumidifying part. An upper passage guide portion for guiding the air to be dehumidified to pass upward is formed, and the dehumidifying water is directed downward with respect to the air that the jet nozzle passes through the upper passage guide portion upward. You may comprise so that it may eject toward.

Further, the dehumidifying unit may be configured as follows.
That is, a meandering path is formed inside the dehumidifying part so that a lower path part through which air passes downward and an upper path part through which air passes upward are used, and the upper path part is used. The upper passage guide portion may be formed, and various configurations may be used as the upper passage guide portion. If it is such a structure, even if a dehumidification part is provided in the middle of the descent | fall path | route part in a ventilation path, it will be provided with an upper passage guide part.

(3) In the above embodiment, the cleaning space is formed in a quadrangular shape in plan view, and the air suction port and the air supply port are arranged on one side wall portion of the four side wall portions in the cleaning space. However, the air suction port and the air supply port may be formed on different side wall portions, or they may be formed at different positions on the left and right sides. It may be formed at a position close to the left-right direction.

(4) In the above embodiment, in the rinsing operation, the rinsing operation is performed a plurality of times, and then the finishing rinsing operation is performed. However, the number of rinsing operations can be appropriately changed. It is also possible to perform the finish rinsing operation from the beginning without performing it.

(5) In the above embodiment, an example in which the present invention is applied to a drawer type dishwasher has been shown, but the present invention can also be applied to a dishwasher other than the drawer type dishwasher. For example, the present invention is applied to a dishwasher having a configuration in which a washing tank is housed in a main body of a dishwasher, and a front wall portion of the main body is configured to be openable and closable with respect to the main body. May be.

DESCRIPTION OF SYMBOLS 9 Heating means 21 Air supply port 22 Air suction port 23 Ventilation means 24 Heat-transfer body 25 Ejection means Df Side wall part F Ventilation path f1 Ascending path part f2 Decreasing path part G Dehumidification part H Control means Q Cleaning space T Upper passage guide part

Claims (6)

Control means for executing a cleaning process for cleaning a cleaning object in a freely openable / closable cleaning space, a rinsing process for the cleaning object, and a drying process for drying the cleaning object is provided. Ventilation means for circulating air in the cleaning space through a ventilation path extending from an air suction port and an air supply port to the cleaning space; and the air circulated through the ventilation path is cooled by contact with dehumidification water in the air A dehumidifying part that dehumidifies the water by condensing the water and heating means for heating the air in the cleaning space,
The control means circulates the air in the cleaning space through the ventilation path by the ventilation means while heating the air in the cleaning space by the heating means as the drying process, and the dehumidifying section A dishwasher configured to control the operation of the ventilation means, the heating means and the dehumidifying unit to dehumidify the air circulated through the ventilation path,
At the bottom of the cleaning tank that constitutes the cleaning space in the internal space, a water storage recess is formed,
The dehumidifying unit is configured to eject water supplied in a dehumidifying water supply channel from the ejection unit as the dehumidifying water, and store the ejected dehumidifying water in the water storage recess,
The control means is
In the state where the heating operation by the heating means is stopped, the air in the cleaning space is circulated through the ventilation path by the ventilation means, and the dehumidifying water and the air passing through the ventilation path in the dehumidifying section to remove odor components in the air by contact of said ventilation means, said being heating means and the deodorizing process of controlling the operation of the dehumidifying unit configured to run until the elapse of the set time for deodorization, and When performing the deodorizing process, the dishwasher is configured to execute a discharge process for discharging the dehumidifying water stored in the water storage recess to the outside . The air suction 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 dishwasher according to claim 1. The dehumidifying part is
Includes an upper passage guide portion for guiding to pass toward the dehumidified air upward, and said jetting means for jetting towards said dehumidifying water downward to the air that passes upward, upward the air guided to pass upward by passing guide portion, is cooled by contact with the dehumidification water ejected downward dehumidifies by condensing the moisture in the air by the ejection means The dishwasher of Claim 1 or 2 comprised as follows. The dehumidifying part is
Comprises the ejection means for ejecting toward the dehumidification water downward to the air passing through the rise path portion in said ventilation path, the air passing through toward the rising path portion upward, by the ejection means The dishwasher of Claim 2 comprised so that it may dehumidify by cooling by the contact with the said dehumidification water sprayed toward the downward direction, and condensing the water | moisture content in air. The dehumidifying part is
A plate-like heat transfer member of the vertical posture provided in a state where a plurality juxtaposed at intervals along the thickness direction, by ejecting the dehumidifying water by the ejection means towards a plurality of heat transfer bodies the air flowing upwardly through between the plurality of heat transfer body, contact between the dehumidification water flowing down between the contact and the heat transfer between the dehumidifying water flows down the surface of the heat transfer The dishwasher of Claim 3 or 4 comprised so that it may dehumidify by cooling by this and condensing the water | moisture content in air. The control means is
The dishwasher according to any one of claims 1 to 5, wherein when the execution of the operation including the drying process is instructed, the deodorizing process is performed after the drying process is performed. .

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