JP2012110517A - Dish washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dish washing and drying machine capable of carrying out uniform drying even though the season is different and not discharging high humidity air in the drying step of dishes.SOLUTION: The dehumidifying section G is constituted such that the dehumidification of the air from a washing space Q sucked from an air suction opening is carried out by condensing moisture in the air by bringing the air from the washing space Q sucked from the air suction opening 22 into contact with the dehumidifying cooling water supplied by a predetermined flowing rate per unit time for a predetermined time, and a predetermined time (that is, washing operation time) for bringing the air from the washing space into contact with the dehumidifying cooling water is set according to the output of the season determinator. Further, the predetermined flowing rate of the dehumidifying cooling water is set according to the output of the season determinator.

Description

  The present invention relates to a dishwasher for washing and drying dishes, and more specifically, in a step of drying dishes, air containing a large amount of moisture is circulated outside by circulating the air in the washing space while dehumidifying it. The present invention relates to a dishwasher having a function of drying tableware without discharging.

As a usage pattern of the dishwasher used for washing and drying dishes such as dishes and tea bowls, the object to be washed is stored in the washing space and is washed from the washing nozzle provided in the washing space. Washing is performed by ejecting washing water toward the object, then rinsing water is ejected from the washing nozzle and then rinsing is performed, and then the drying air is blown through the object to be washed. This aspect is standard.
However, in some cases, it may be used in various other forms of use, such as rinsing treatment and drying treatment on an object to be cleaned that does not require washing, such as hand-washed.

  Such a dishwasher / dryer is provided with a ventilation means for circulating the air in the cleaning space through the ventilation path, and a dehumidifying part for dehumidifying the air circulated through the ventilation path. There is a circulation type that is sucked from a suction port and dehumidified in a dehumidifying section cooled by cooling water, and then returned from the air supply port to the cleaning space.

  In the case of this circulation type dishwasher / dryer, moist air is not discharged outside during the drying process, so it can be used by the user or in an installation area such as a kitchen where the dishwasher / dryer is installed. The inconvenience that moist air is blown to other existing devices is solved, and it becomes possible to clean and dry the comfortable dishes.

  As one of such tableware washing and drying machines, for sucking air from the washing space into the upper region of one circumferential wall portion among the four circumferential wall portions in the washing space formed in a square shape in plan view An air suction port is formed, and an air supply port for supplying air to the cleaning space is formed in the lower region of the peripheral wall portion. As a ventilation means in the ventilation path from the air suction port to the air supply port There has been proposed a dishwasher / dryer provided with a circulation fan and a dehumidifying section that dehumidifies the air circulating by cooling with cooling water (see Patent Document 1).

  However, the dishwasher / dryer of Patent Document 1 has a problem that the dehumidifying capacity varies depending on the temperature of the dehumidifying cooling water, and the drying performance varies accordingly. That is, there is a problem in that the finish when the tableware is washed and dried varies between the season when the water temperature is low and the season when the water temperature is high.

JP-A-8-131391

  The present invention has been made to solve the above-described problem, and can perform uniform drying even in different seasons, and does not discharge high-humidity air in the tableware drying process. An object is to provide a dishwasher / dryer.

In order to achieve the above object, the dishwasher of the present invention comprises:
A washing tub for storing dishes and spraying washing water to wash the dishes;
Air in the cleaning space is circulated through a ventilation path formed from an air suction port provided in the cleaning space formed in the cleaning tank to an air supply port provided in the cleaning space. A ventilation means for
A dehumidifying unit for dehumidifying the air circulated through the ventilation path;
With a season determination means for determining the season,
In the drying step of drying the dishes, the air in the cleaning space is sucked from the air suction port, guided to the dehumidifying part, dehumidified, and then returned to the cleaning space through the ventilation path, dehumidifying drying operation, A dishwasher configured to run for a predetermined drying time,
The dehumidifying unit brings the air from the cleaning space sucked from the air suction port into contact with dehumidifying cooling water to which a predetermined flow rate is supplied per unit time for a predetermined time, thereby removing moisture in the air. It is configured to dehumidify air from the cleaning space sucked from the air suction port by condensing,
The predetermined time for contacting the air from the cleaning space with the dehumidifying cooling water is set in accordance with the output of the season determining means.

Moreover, the dishwasher / dryer of the present invention comprises:
A washing tub for storing dishes and spraying washing water to wash the dishes;
Air in the cleaning space is circulated through a ventilation path formed from an air suction port provided in the cleaning space formed in the cleaning tank to an air supply port provided in the cleaning space. A ventilation means for
A dehumidifying unit for dehumidifying the air circulated through the ventilation path;
With a season determination means for determining the season,
In the drying step of drying the dishes, the air in the cleaning space is sucked from the air suction port, guided to the dehumidifying part, dehumidified, and then returned to the cleaning space through the ventilation path, dehumidifying drying operation, A dishwasher configured to run for a predetermined drying time,
The dehumidifying unit condenses moisture in the air by bringing the air from the cleaning space sucked from the air suction port into contact with dehumidifying cooling water supplied at a predetermined flow rate per unit time for a predetermined time. And is configured to dehumidify air from the cleaning space sucked from the air suction port,
The predetermined flow rate of the dehumidifying cooling water is set in accordance with the output of the season determining means.

  Alternatively, the dishwasher / dryer of the present invention comprises temperature detection means for detecting the temperature in the vicinity of the washing tub, and is configured to perform season determination by the season determination means based on the output of the temperature detection means. It is preferable that

  Moreover, in the dishwasher / dryer of the present invention, the dehumidifying cooling water is configured to be supplied from the outside of the dishwasher / dryer via a water supply section provided in the dishwasher / dryer. And a cooling water temperature detecting means for detecting the temperature of the dehumidifying cooling water supplied from the water supply unit, and determining the season by the season determining means based on the output of the cooling water temperature detecting means. It is preferable that it is comprised.

  In the dishwasher / dryer of the present invention, as described above, the dehumidifying unit removes the air from the cleaning space sucked from the air suction port, the dehumidifying cooling water supplied at a predetermined flow rate per unit time, and the predetermined amount. It is configured to perform dehumidification of air from the cleaning space sucked from the air suction port by bringing the moisture in the air into contact for a period of time, and according to the output of the season determination means Since the predetermined time for contacting the air from the cleaning space with the dehumidifying cooling water (that is, the drying operation time) is set, the temperature of the dehumidifying cooling water varies depending on the season, Even when the amount of dehumidification per hour changes, it is possible to provide a dishwasher / dryer capable of preventing a variation in drying finish and performing a stable drying operation.

  Further, as described above, in the dishwasher / dryer of the present invention, the dehumidifying unit supplies the air from the cleaning space sucked from the air suction port to the dehumidifying cooling water supplied at a predetermined flow rate per unit time. It is configured to dehumidify the air from the cleaning space sucked from the air suction port by condensing moisture in the air for the period of time, and according to the output of the season determination means, It is configured to set a predetermined flow rate for cooling water for dehumidification, so even if the amount of dehumidification per hour changes due to seasonal fluctuations in the temperature of the dehumidifying cooling water, it is possible to achieve a dry finish. It is possible to provide a dishwasher / dryer capable of preventing a variation and performing a stable drying operation.

  In addition, when the temperature detection means for detecting the temperature in the vicinity of the cleaning tank is provided and the season determination by the season determination means is performed by the output of the temperature detection means, only the temperature detection means is provided in the vicinity of the cleaning tank. It is possible to provide a dishwasher / dryer with a simple configuration and having no difference in the finish of drying.

  In addition, the dehumidifying cooling water is supplied from the outside of the dishwasher / dryer via the water supply unit provided in the dishwasher / dryer and detects the temperature of the dehumidifying cooling water supplied from the water supply unit. When the water temperature detecting means is provided and the season determination by the season determining means is performed by the output of the cooling water temperature detecting means, the temperature detecting means for detecting the temperature of the dehumidifying cooling water is provided. It becomes possible to provide a dishwasher / dryer with a simple structure that is simply provided and that does not cause a difference in the finish of drying.

It is a perspective view which shows the structure of the principal part of the tableware washing dryer concerning the Example (Example 1) of this invention. It is side surface sectional drawing of the tableware washing dryer concerning Example 1 of this invention. It is a perspective view which shows schematic structure of the inner side area | region of the door body of the tableware washing dryer concerning Example 1 of this invention. It is a disassembled perspective view which shows schematic structure of the inner side area | region of the door body of the tableware washing dryer concerning Example 1 of this invention. It is a perspective view which shows the structure of the drying unit used in the tableware washing dryer concerning Example 1 of this invention, Comprising: It is a figure which shows the state which removed the front side division | segmentation casing part. It is a front view which shows the structure of the drying unit used in the tableware washing dryer concerning Example 1 of this invention. It is a figure for demonstrating operation | movement of the tableware washing dryer concerning Example 1 of this invention. It is a figure explaining the aspect of the output of the season determination result of the season determination means which comprises the tableware washing dryer concerning Example 1 of this invention. It is a figure which shows the structure of the tableware washing dryer concerning other Example (Example 2) of this invention. It is a figure which shows the structure of the tableware washing dryer concerning other Example (Example 3) of this invention.

  Hereinafter, examples of the present invention will be shown and the features thereof will be described in more detail.

  The dishwasher / dryer of Example 1 is a drawer-type dishwasher / dryer, and as shown in FIGS. 1, 2, and 3, a rectangular parallelepiped main body 1 having an open front surface, and a main body 1 is provided with a washing tank D having a substantially rectangular shape in plan view, arranged in such a manner that each operation of the drawer movement and the storage movement can be performed freely.

  The cleaning tank D includes a drawer 2, and the main body 1 includes a slide rail mechanism (not shown) that supports the drawer 2 so as to be movable with respect to the main body 1. And the drawer | drawing-out part 2 is comprised so that it can pull out so that most may be exposed outside the main-body part 1. As shown in FIG.

  Further, the main body portion 1 closes the upper surface portion of the cleaning tank D while the drawer portion 2 is housed in the main body portion 1, and the upper surface of the cleaning tank D when the drawer portion 2 is pulled out from the main body portion 1. An inner lid portion 3 for opening the portion is provided, and a cleaning space Q that can be opened and closed is secured in the internal space of the cleaning tank D (see FIG. 2).

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. When the drawer part 2 is pulled out from the main body part 1 or stored, A gripping part B for gripping is provided. Although not described in detail, the gripping portion B is provided with an engaging means P that engages with the locking portion Pa of the main body 1 as the drawer 2 is housed in the main body 1. When the engaging means P is engaged with the locking portion Pa, the drawer portion 2 is configured to be held in the main body portion 1. And the engaging means P is comprised so that it can cancel | release engagement and can cancel | release an engagement state with the finger | toe which is holding the holding part B, when pulling out the drawer part 2 from the main-body part 1. Yes. Further, the door body A is provided with an operation unit SS for performing various operations for driving.
Further, in the dishwasher / dryer of the first embodiment, as shown in FIG. 7, a water supply path 4 for supplying water to the cleaning tank D and a water supply valve 4 a for opening and closing the water supply path 4 are provided.

  A pump (combined pump) 6 that functions as a cleaning pump in the forward direction and functions as a drainage pump in the reverse direction is provided below the bottom of the cleaning tank D in the drawer 2. In addition, a cleaning nozzle 8 and an electric heater 9 as a heating means are disposed inside the cleaning tank D, and a cleaning basket 10 for storing and placing a cleaning object such as tableware is provided in the cleaning tank D. It is detachably mounted inside.

The pump 6 is connected to the water storage recess S formed at the bottom of the cleaning tank D via the suction pipe 11. The pump 6 is connected to a drain pipe 12 for draining.
Further, a water level sensor J is connected to the water storage recess S via 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, and although not particularly shown, the drain pan 14 detects water leakage that detects the presence or absence of the received water. Equipped with a sensor.

  As shown in FIGS. 2, 3, 4 and 7, the front side wall Df corresponding to the front side of the machine body, that is, the front side of the drawer, out of the four side walls in the cleaning tank D is dried. Unit K is attached.

  That is, as shown in FIG. 4 and the like, 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 first embodiment, the air supply port 21 is on the right side, and the air The suction port 22 is located on the left side.

  As shown in FIGS. 3 to 7 and the like, the drying unit K has a ventilation path F extending from the air suction port 22 to the air supply port 21 inside the casing 15 fixed to the front side wall portion Df of the cleaning tank D. A circulation fan (ventilating means) 23 that circulates the air in the cleaning space Q and a dehumidifying part G that dehumidifies the air circulated through the ventilation path F are provided. As the circulation fan (ventilating means) 23, a sirocco fan is used.

  As shown in FIG. 7, the ventilation path F includes 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 (ventilating means) 23 is disposed in the descending path part f2.

  As shown in FIG. 7, the dishwasher / dryer of the first embodiment further includes a dehumidifying water supply channel 26 for supplying dehumidifying cooling water to the distribution nozzle 51 and a dehumidifying cooling water intermittently for opening and closing the dehumidifying water supply channel 26. A valve 27 and a governor 28 for stabilizing the feed water pressure are provided. The governor 28 stabilizes the water supply pressure so that the flow rate of water supplied to the distribution nozzle 51 of the dehumidifying cooling water supply means 25 can be maintained substantially constant (0.15 liter / min in the embodiment). It is configured.

  Next, the air flow in the ventilation path F of the dishwasher / dryer of the first embodiment will be described. As shown in FIGS. 5 and 6, when the circulation fan (ventilating means) 23 is operated, air is sucked from the suction opening 23 </ b> A, and the air inside the cleaning space Q is separated from the side wall portion 15 a of the casing 15 and the partition wall 40. The fluid flows upward through the ascending path portion f1 partitioned by. 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.

  In the dishwasher / dryer of the first embodiment, the rising path portion f1 is partitioned by a plurality of (in this embodiment, five) heat transfer bodies 24a to form a slit-shaped divided path, and passes through the rising path portion f1. Air passes through each slit-like divided path.

  The air containing a large amount of water passing through each slit-shaped divided path passes through each heat transfer body 24a and its surface efficiently cooled by the dehumidifying cooling water flowing almost uniformly from the respective flow outlets 53 of the distribution nozzle 51. It cools in contact with the flowing down dehumidifying cooling water, and moisture in the air is condensed and separated.

  The dehumidifying cooling water that has flowed down from each flow-down port 53 returns to the cleaning tank D through the air suction port 22 together with the condensed water, and is stored in the water storage recess S.

  Then, in a state where the heater 9 is operated, the circulation fan (ventilating means) 23 is operated to suck air from the cleaning space Q, and the air is passed through the ventilation path F and dehumidified from the flow-down port 53 of the distribution nozzle 51. The cooling water is allowed to flow down to dehumidify the air sucked from the cleaning space Q in the dehumidifying part G, and the dehumidified air is circulated and supplied to the cleaning space Q as drying air, and the supplied air is used as a heater. By performing heating at 9, a drying operation for drying the object to be cleaned in the cleaning space Q is performed.

  Further, with the heater 9 stopped, the air in the cleaning space Q is ventilated through the ventilation path F, and the dehumidifying section G is brought into contact with the dehumidifying cooling water flowing down from the flow-down port 53 of the distribution nozzle 51 to enter the air. By deodorizing the circulating air by absorbing and removing odorous components such as ammonia and trimethylamine contained in the cooling water for dehumidification.

  In addition, after the odor component in the air sucked from the cleaning space Q is absorbed by the dehumidifying cooling water in the dehumidifying part G and separated, and then supplied to the cleaning space Q, the cleaning space Q is also deodorized. become.

  In the case of this dishwasher / dryer, the drawer 2 is equipped with a control unit H as a control means for controlling operation, as shown in FIG. 7, and the control unit H is connected to the operation unit SS. Based on the input command, the operations of the water supply valve 4a, the pump 6, the heater 9, the circulation fan (ventilating means) 23, and the dehumidifying cooling water interrupting valve 27 are controlled, and the cleaning space inside the cleaning tank D A cleaning operation in which the cleaning object of Q is cleaned with a cleaning liquid (hot water), and a rinsing process for rinsing the cleaning object with rinsing water stored in the water storage recess S of the cleaning tank D and heated by the heater 9 Operation, drain operation for draining the rinse water stored in the water storage recess S of the washing tank D, distribution nozzle 51 of the cooling fan supply means 25 for ventilation and dehumidification by the circulation fan 23 while the heater 9 is heated. Dehumidification from Drying operation in which cooling water is supplied (flowed down) to dry the air, and dehumidification from the distribution nozzle 51 in the cooling water supply means 25 for ventilation and dehumidification by the circulation fan 23 with the heater 9 stopped. Operation such as deodorization operation is performed to deodorize the air by supplying cooling water (flowing down). That is, the control unit H is configured to control the operation of the circulation fan 23 and the dehumidifying unit G so that the air in the cleaning space Q is circulated while dehumidifying in the drying process.

  Further, the dishwasher / dryer of the first embodiment is operated only by the user through the operation section SS in the order of the washing operation, the rinsing operation, the drainage operation, the drying operation, and the deodorizing operation. Various operation courses such as a drying only course can be selected, and a standard operation course, a careful operation course, a rapid operation course, and a low temperature operation course are provided as continuous operation courses.

Hereinafter, the control operation of the control unit H will be described.
First, it is detected by a storage switch (not shown) that the drawer unit 2 is stored in the storage position of the main body unit 1, and when the power switch of the operation unit SS is turned on, a driving course is selected.

  When the start switch of the operation unit SS is turned on, the standard operation course starts, and the cleaning operation, the rinsing operation, the draining operation, the drying operation, the deodorizing operation, and the draining operation are sequentially executed.

  In the cleaning operation, when the water supply valve 4a is opened and cleaning water is supplied into the cleaning tank D through the water supply passage 4, and the water level sensor J detects that the water level has reached the set water level, the water supply valve 4a The cleaning operation for performing the water supply operation for closing the water, and then rotating the pump 6 forward and the heater 9 to eject the cleaning water from the cleaning nozzle 8 toward the object to be cleaned is performed for the set time for the cleaning operation. Then, the pump 6 is reversely operated, and the draining operation for draining the cleaning water in the cleaning tank D is performed.

  Further, 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 pump 6 is rotated forward so that the object is cleaned. The rinsing water jetting operation for jetting rinsing water from the washing nozzle 8 until the set time elapses, and the draining operation for draining the rinsing water stored in the bottom of the washing tank D by rotating the pump 6 in reverse. The rinsing operation is performed twice, and finally the heating rinsing operation is performed.

  In the heating rinsing operation, the rinsing water is stored at the bottom of the cleaning tank D by the above-described water supply operation, and then the pump 6 and the heater 9 are operated, and the rinsing water heated by the heater 9 is used to rinse the object to be cleaned. I do. When the temperature of the rinsing water reaches the finishing set temperature (for example, 67 ° C.) by the thermistor TH (see FIG. 2), the heating rinsing operation is terminated. The thermistor TH also functions as a temperature detection means that constitutes a season determination means in the dishwasher / dryer of the first embodiment.

  In the drainage operation, the pump 6 is operated in reverse to drain the rinse water stored in the bottom of the cleaning tank D, and the rinse water stored in the bottom of the cleaning tank D is discharged by the water level sensor J. Do this until it is detected.

  In the drying operation, with the heater 9 being heated, the ventilation operation by the circulation fan 23 and the supply operation of the dehumidifying cooling water from the distribution nozzle 51 of the dehumidifying cooling water supply means 25 are performed, and this state is used for drying. Continue until the set time has elapsed.

  The dehumidifying cooling water is supplied from the distribution nozzle 51 of the dehumidifying cooling water supply means 25 by opening the dehumidifying cooling water intermittent valve 27 and supplying water to the distribution nozzle 51 via the dehumidifying water supply channel 26. The cooling water for dehumidification is made to flow down from the flow down port 53 of the distribution nozzle 51. At this time, the flow rate of the dehumidifying cooling water is maintained substantially constant (0.15 liter / min in the embodiment) by the governor 28 for stabilizing the feed water pressure.

  The dehumidifying cooling water supplied (flowed down) from the flow down port 53 of the distribution nozzle 51 flows down through the rising 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. The

  And every time set time passes so that the heater 9 may not be immersed by the dehumidification cooling water stored, or the water level of the recessed part S for water storage is the set water level for drainage in the water level sensor J. When this is detected, the pump 6 is reversely operated to perform drainage processing for discharging the dehumidifying cooling water to the outside.

  When the drying operation is started and the set time for drying elapses, heating of the heater 9 and ventilation by the circulation fan 23 are stopped, the dehumidifying cooling water intermittent valve 27 is closed, and the supply of water to the distribution nozzle 51 is stopped. Then, the flow of the dehumidifying cooling water from the distribution nozzle 51 is stopped.

  In the deodorizing operation, with the heater 9 stopped, the ventilation operation by the circulation fan 23 and the dehumidifying cooling water supply operation from the distribution nozzle 51 of the dehumidifying cooling water supply means 25 are performed, and the state is deodorized. Maintain until set time has passed. In this deodorizing operation, as in the case of the drying operation described above, every time the set time elapses or the water level sensor J detects that the water level of the water storage recess S is the set water level for drainage. Sometimes, the pump 6 is operated in reverse to perform a drainage process for discharging the dehumidifying cooling water ejected from the distribution nozzle 51 and stored in the water storage recess S to the outside.

  When the set time for deodorization elapses after the start of the deodorizing operation, the ventilation operation by the circulation fan 23 and the supply operation of the dehumidifying cooling water from the distribution nozzle 51 of the dehumidifying cooling water supply means 25 are stopped to eliminate the deodorization. End driving.

  Then, after the deodorizing operation is completed, the drainage operation is performed. In this drainage operation, the water level sensor J drains the dehumidifying cooling water stored in the drainage operation of discharging the dehumidifying cooling water stored in the water storage recess S by operating the pump 6 in the reverse direction. Continue until it is detected.

  When the water supply operation is performed in the cleaning operation and the rinsing operation, a process of opening the dehumidifying cooling water interrupting valve 27 and supplying water to the distribution nozzle 51 through the dehumidifying water supply passage 26 is also performed. I also try to do it together. In this way, water is supplied from the dehumidifying water supply channel 26 to the dehumidifying part G without wasting water, so that the dehumidifying part G is kept as clean as possible.

In the tableware washing / drying machine of the first embodiment, as shown in FIG. 2, a thermistor (temperature detection means) TH is disposed as a temperature detection means so as to be in close contact with the bottom surface of the washing tank D. The thermistor TH is directly behind the bottom surface of the cleaning tank D corresponding to the region where the heater 9 is disposed in plan view (that is, directly below the position where the heater 9 is disposed on the back side of the bottom surface of the cleaning tank D). Position).
When the user turns on the power switch of the operation unit SS, the thermistor is operated when a predetermined time (for example, 5 hours) has elapsed since the energization of the heater 9 was stopped in the control unit H (FIG. 7). From the output of the detected temperature of TH, the season determination means determines the season. In the dishwasher / dryer according to the first embodiment, the control unit H is also configured to function as a season determination unit.

In the dishwasher / dryer according to the first embodiment, for example, the season determination as shown in Table 1 and FIG. 8 is performed based on the temperature detected by the thermistor TH at the time when 5 hours or more have passed since the energization of the heater 9 is stopped. The result is output.
The initial setting is “Spring / Autumn”.
Further, when 5 hours or more have not passed since the energization of the heater 9 is stopped, the previous determination result is used.

  The output of the season determination will be described with reference to Table 1 and FIG. 8. If the detected temperature of the thermistor TH when 5 hours or more have elapsed is, for example, 25 ° C. or more, the determination result that the season is summer is output. Thereafter, when the detected temperature decreases to 23 ° C., it is determined that the season has changed from summer to spring / autumn. Thereafter, when the detected temperature falls below 12 ° C., it is determined that the season has changed from spring / autumn to winter. Thereafter, when the detected temperature reaches 14 ° C., it is determined that the season has changed from winter to spring / autumn.

  The season determined by the season determination means is used for selecting the set time for the drying operation in the drying operation described later.

  Then, in the drying operation, as shown in Table 2, the circulation fan 23 keeps the heater 9 ON until the set time (drying operation time) set according to the output of the season determination means is reached. The tableware is dried by performing the ventilation operation and the dehumidifying cooling water supply operation from the distribution nozzle 51 of the dehumidifying cooling water supply means 25.

  That is, in the dishwasher / dryer of the first embodiment, in the washing tank D (washing space Q) in which the dehumidifying cooling water flowing from the distribution nozzle 51 to the heat transfer body 24a of the condensing unit 24 circulates through the ventilation path F. The air is cooled by contact with hot and humid air. Then, the temperature of the air is lowered, the saturated vapor pressure is lowered, the moisture is condensed by the amount exceeding the saturated vapor pressure at that temperature, and the moisture in the air is removed, whereby dehumidification is performed.

  During the drying operation, the ventilation operation by the circulation fan 23 and the supply operation of the dehumidifying cooling water from the distribution nozzle 51 of the dehumidifying cooling water supply means 25 are continuously performed, so that the dehumidified air is washed. Returning to the tank D (cleaning space Q), the air in the cleaning tank D is taken into the ventilation path F, and the operation of contacting the dehumidifying cooling water again is repeated, so that the water evaporated in the cleaning tank is removed. While being removed by the dehumidifying part G, the drying of the tableware proceeds.

  In Table 2, the drying time is extended for 5 minutes from the winter in the summer in the dry / standard conditions, and 10 minutes from the winter in the summer in the dry / strong conditions. This is because in summer, the outside air temperature is higher and the temperature of the dehumidifying cooling water is higher than in the winter, so the temperature of the dehumidifying cooling water and the air to be dried (passes through the ventilation path F during the drying operation). This is because the temperature difference from the high-temperature and high-humidity air) is smaller than in winter, and the amount of water removed in the dehumidifying portion G per unit time is reduced.

  Like the dishwasher of this Example 1, by making the drying operation time in the summer longer than the drying operation time in the winter, it becomes possible to secure a dehumidifying amount equivalent to the winter in the summer, It becomes possible to perform a stable drying operation without causing a difference in the drying state depending on the season.

  In the dishwasher / dryer of the first embodiment, when the operation is temporarily stopped during the drying operation, the heater 9 and the drying fan 23 are turned off, and the dehumidifying cooling water interrupting valve 27 is continuously turned on. Prepare for a dry run that will resume.

  However, when the temporary stop by opening the door body A and the temporary stop by the temporary stop switch exceed 1 hour, the dehumidifying cooling water intermittent valve 27 is turned off.

  In the dishwasher / dryer of Example 1, the drying mode has two modes of “drying / standard” with a short drying time and “drying / strong” with a long drying time. Although “standard” is set, “drying strength” can be selected by the operation unit SS.

Table 3 shows the following operation course during the drying operation.
(1) Dry only, standard driving course, careful driving course, fast driving course,
(2) The set temperature (threshold value) of the heater control in the low temperature operation course, that is, the heater ON temperature that is the temperature at which the heater is turned on, and the heater OFF temperature that is the temperature at which the heater is turned off.

  In addition, heater control is performed so that the heater is turned on until the detected temperature of the thermistor TH reaches the heater OFF temperature of Table 3 until the set time in Table 2 (set time for drying operation) is reached. Further, after the heater OFF temperature is reached, the heater control is performed so that the heater is turned OFF until the detected temperature of the thermistor TH reaches the heater ON temperature shown in Table 3, and thereby the washing tank is configured. The internal temperature is maintained at a certain level, and an efficient and stable drying operation is performed.

  FIG. 9 is a diagram showing a configuration of a dishwasher according to another embodiment (Example 2) of the present invention.

In the dishwasher / dryer of the first embodiment, a dishwasher / dryer configured to perform uniform drying regardless of the season by adjusting the drying operation time according to the output of the season determination means. As shown in FIG. 9, in the dishwasher / dryer according to the second embodiment, in order to be able to control the supply amount of the dehumidifying cooling water per unit time, the downstream of the feed water pressure stabilizing governor 28 is provided. To the distribution nozzle 51 is provided with a water amount adjustment valve 60 for adjusting the water amount by adjusting the water channel area.
That is, in the dishwasher / dryer of the second embodiment, instead of adjusting the drying operation time according to the output of the season determining means as in the case of the first embodiment (Example 1), the output of the season determining means is used. By adjusting the flow rate of the dehumidifying cooling water accordingly (increase / decrease control), uniform drying can be performed regardless of the season.

  The dishwasher / dryer of the second embodiment has the same configuration as the dishwasher / dryer of the first embodiment except that a water amount adjusting valve 60 is provided to adjust the flow rate of the cooling water for dehumidification. I have.

  As in the dishwasher / dryer of the embodiment 2, the supply amount of the dehumidifying cooling water supplied to the dehumidifying unit G is adjusted according to the output of the season determining means (specifically, during the drying operation in summer, Even when the amount of dehumidifying cooling water supplied to the dehumidifying section G is increased compared to the time of the drying operation in winter, stable drying operation is performed with no difference in the dry state depending on the season. Is possible.

In addition, as described in the first embodiment, since the outdoor temperature is higher and the temperature of the dehumidifying cooling water is higher in the summer than in the winter, the temperature of the dehumidifying cooling water and the drying target are increased. If the temperature difference with air (high-humidity air that passes through the ventilation path during washing operation) is smaller than in winter and the supply amount of cooling water for dehumidification is the same, summer is more dehumidifying than in winter. Although the amount of water removed per unit time is reduced, the dehumidifying cooling water is supplied to the dehumidifying section G at the time of the drying operation in the summer and at the time of the drying operation in the winter, as in the dishwasher / dryer of the second embodiment. By increasing the supply amount per unit time and increasing the cooling capacity in the dehumidifying section G, a dehumidifying amount equivalent to that in winter can be ensured.
As a result, it is possible to obtain a dishwasher / dryer capable of performing a stable drying operation with no difference in the dry state depending on the season.

  In the dishwasher / dryer of the second embodiment, the water channel area is adjusted between the distribution nozzle 51 and the downstream of the governor 28 for stabilizing the feed water pressure in order to control the supply amount of the dehumidifying cooling water per unit time. Although the water amount adjustment valve 60 for adjusting the water amount is provided, the configuration for adjusting the supply amount per unit time of the dehumidifying cooling water is not necessarily limited to the above example.

In the dishwasher / dryer of Examples 1 and 2, the season is determined based on the temperature detected by the thermistor (temperature detecting means) TH (see FIG. 2) disposed on the bottom surface of the washing tank D. As shown in FIG. 10, a thermistor TH2 (cooling water temperature detecting means) for detecting the temperature of the dehumidifying cooling water is provided near the dehumidifying cooling water intermittent valve 27, and the dehumidifying cooling detected by the thermistor TH2 is provided. It is also possible to perform a season determination based on the temperature of the water, and to determine the drying operation time according to the result.
In the dish washer / dryer of Example 3, the thermistor TH2 was provided near the dehumidifying cooling water interrupting valve 27, and the season was determined based on the temperature of the dehumidifying cooling water detected by the thermistor TH2. Except for the point, it has the same configuration as the dishwasher / dryer of Example 1.

  The present invention is not limited to the above embodiments, and various applications and modifications can be made within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Drawer part 3 Inner cover part 4 Water supply path 4a Water supply valve 6 Pump (combined pump)
DESCRIPTION OF SYMBOLS 8 Washing nozzle 9 Heater 10 Washing basket 11 Suction pipe 12 Drainage pipe 13 Guide pipe 14 Drain pan 15 for catching water leakage 15 Casing 15a Side wall part 21 Air supply port 22 Air suction port 23 Circulation fan (ventilating means)
23A Circulating fan suction opening 23B Circulating fan discharge part 24 Condensing part 24a Heat transfer body 25 Dehumidifying cooling water supply means 26 Dehumidifying water supply path 27 Dehumidifying cooling water interrupting valve 28 Governor for stabilizing water supply pressure 40 Partition wall 51 Distributing nozzle 53 Downflow port 60 Water amount adjusting valve A Door body B Gripping part D Cleaning tank Df Front side wall part F Ventilation path f1 Ascending path part f2 Decreasing path part G Dehumidifying part H Control part J Water level sensor K Drying unit P Engagement means Pa Locking part Q Cleaning space S Recess for water storage SS Operation part TH Thermistor (temperature detection means)
TH2 Thermistor for detecting the temperature of cooling water for dehumidification

Claims (4)

A washing tub for storing dishes and spraying washing water to wash the dishes;
Air in the cleaning space is circulated through a ventilation path formed from an air suction port provided in the cleaning space formed in the cleaning tank to an air supply port provided in the cleaning space. A ventilation means for
A dehumidifying unit for dehumidifying the air circulated through the ventilation path;
With a season determination means for determining the season,
In the drying step of drying the dishes, the air in the cleaning space is sucked from the air suction port, guided to the dehumidifying part, dehumidified, and then returned to the cleaning space through the ventilation path, dehumidifying drying operation, A dishwasher configured to run for a predetermined drying time,
The dehumidifying unit brings the air from the cleaning space sucked from the air suction port into contact with dehumidifying cooling water to which a predetermined flow rate is supplied per unit time for a predetermined time, thereby removing moisture in the air. It is configured to dehumidify air from the cleaning space sucked from the air suction port by condensing,
The dishwasher / dryer configured to set the predetermined time for contacting the air from the washing space with the dehumidifying cooling water according to the output of the season determination means. A washing tub for storing dishes and spraying washing water to wash the dishes;
Air in the cleaning space is circulated through a ventilation path formed from an air suction port provided in the cleaning space formed in the cleaning tank to an air supply port provided in the cleaning space. A ventilation means for
A dehumidifying unit for dehumidifying the air circulated through the ventilation path;
With a season determination means for determining the season,
In the drying step of drying the dishes, the air in the cleaning space is sucked from the air suction port, guided to the dehumidifying part, dehumidified, and then returned to the cleaning space through the ventilation path, dehumidifying drying operation, A dishwasher configured to run for a predetermined drying time,
The dehumidifying unit condenses moisture in the air by bringing the air from the cleaning space sucked from the air suction port into contact with dehumidifying cooling water supplied at a predetermined flow rate per unit time for a predetermined time. And is configured to dehumidify air from the cleaning space sucked from the air suction port,
The dishwasher / dryer, wherein the predetermined flow rate of the dehumidifying cooling water is set according to an output of the season determination means.   3. The tableware according to claim 1, further comprising temperature detecting means for detecting a temperature in the vicinity of the washing tank, wherein the season is determined by the season determining means based on an output of the temperature detecting means. Wash dryer.   The dehumidifying cooling water is configured to be supplied from the outside of the dishwasher / dryer via a water supply unit provided in the dishwasher / dryer, and the dehumidifying cooling water is supplied from the water supply unit. 3. A cooling water temperature detecting means for detecting the temperature of water is provided, and the season determination by the season determining means is performed by the output of the cooling water temperature detecting means. The dishwasher described.

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